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Sample records for moor merje toome

  1. Ode to Moore

    ERIC Educational Resources Information Center

    Wilbert, Nancy Corrigan

    2011-01-01

    Best known for his monumental abstract sculptures of reclining figures, Henry Moore's forms are generally pierced or have a hollow space within them. Some say that these "organic undulating forms" are reminiscent of the landscape of his home in Yorkshire, England. Moore was a giant in the world of sculpture and his large cast bronzes and marble…

  2. The Moore Method

    ERIC Educational Resources Information Center

    Jones, F. Burton

    1977-01-01

    The Moore methods, in which college mathematics students prove theorems for themselves, is described. Difficulties and drawbacks to this method, appropriate areas of mathematics in which the Moore method can be used, and techniques in using the method are discussed. (DT)

  3. OCGen Module Mooring Project

    SciTech Connect

    McEntee, Jarlath

    2015-02-06

    Ocean Renewable Power Company's OCGen Module Mooring Project provided an extensive research, design, development, testing and data collection effort and analysis conducted with respect to a positively buoyant, submerged MHK device secured to the seabed using a tensioned mooring system. Different analytic tools were evaluated for their utility in the design of submerged systems and their moorings. Deployment and testing of a prototype OCGen® system provided significant data related to mooring line loads and system attitude and station keeping. Mooring line loads were measured in situ and reported against flow speeds. The Project made a significant step in the development of designs, methodologies and practices related to floating and mooring of marine hydrokinetic (MHK) devices. Importantly for Ocean Renewable Power Company, the Project provided a sound basis for advancing a technically and commercially viable OCGen® Power System. The OCGen® Power System is unique in the MHK industry and, in itself, offers distinct advantages of MHK devices that are secured to the seabed using fixed structural frames. Foremost among these advantages are capital and operating cost reductions and increased power extraction by allowing the device to be placed at the most energetic level of the water column.

  4. Hydrostatic Mooring System

    SciTech Connect

    Korsgaarb, Jens

    2000-04-25

    This report is a summary of the following topics of the first quarter of 2000: (1) Han Padron Associates (HPA) provided conceptual structural design of the mooring buoy; and (2) they completed partial review of the HPA design and designed the sealing elements.

  5. Interview with David Moore

    ERIC Educational Resources Information Center

    Rossman, Allan; Dietz, E. Jacquelin; Moor, David

    2013-01-01

    David Moore is Professor Emeritus of Statistics at Purdue University. He served as the first President of the International Association for Statistical Education (IASE) from 1993-1995 and as President of the American Statistical Association (ASA) in 1998. He is a Fellow of the ASA and of the IMS and was awarded the ASA's Founders Award in…

  6. Moore appointed LEGIS Fellow

    NASA Astrophysics Data System (ADS)

    John E. Moore, of the U.S. Geological Survey, Reston, Va., has been selected for the Office of Personnel Management's LEGIS Fellow Program. He will be a technical advisor on the U.S. House of Representatives Environment, Energy, and Natural Resources Subcommittee for 1986.

  7. Charlotte Moore Sitterly

    NASA Astrophysics Data System (ADS)

    Rubin, Vera C.

    2010-07-01

    Charlotte Moore Sitterly was a scientist in an era when it was rare for a woman to have the opportunity to devote her life to forefront science. Following her graduation from Swarthmore College in 1920, she accepted a position at Princeton University as an assistant to Henry Norris Russell. In 1925 she started a study of the solar spectrum. She could then not know that she would devote much of her scientific career to gathering basic atomic data that are invaluable to the scientific community, even today. In 1931 she obtained a Ph.D. degree at the University of California, Berkeley, and returned to Princeton as a staff member of the Princeton University Observatory. In 1945 Moore moved to the National Bureau of Standards (NBS), to supervise preparation of the widely-used tables of atomic energy levels. Following the successful launching (1946) of a V2 rocket to obtain the ultraviolet spectrum of the Sun, she started working also with Richard Tousey and his group at the Naval Research Laboratory (NRL). Ultimately, they extended the solar spectrum down to 2200 angstroms. She continued her affiliations with both the NBS and the NRL until her death in 1990. Charlotte Moore was a rare scientist who devoted her career to obtaining accurate numbers, thus enabling the scientific community to open her tables and know that the data are reliable.

  8. Development of moored oceanographic spectroradiometer

    NASA Technical Reports Server (NTRS)

    Booth, Charles R.; Mitchell, B. Greg; Holm-Hansen, O.

    1987-01-01

    Biospherical Instruments has successfully completed a NASA sponsored SBIR (Small Business Innovational Research Program) project to develop spectroradiometers capable of being deployed in the ocean for long periods of time. The completion of this project adds a valuable tool for the calibration of future spaceborne ocean color sensors and enables oceanographers to extend remote sensing optical techniques beyond the intermittent coverage of spaceborne sensors. Highlights of the project include two moorings totalling 8 months generating extensive sets of optical, biological, and physical data sets in the ocean off La Jolla, California, and a 70 day operational deployment of the resulting commercial product by the ONR and NASA sponsored BIOWATT program. Based on experience gained in these moorings, Biospherical Instruments has developed a new line of spectroradiometers designed to support the oceanographic remote sensing missions of NASA, the Navy, and various oceanographers.

  9. 46 CFR 184.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Ground tackle and mooring lines. 184.300 Section 184.300... Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely anchored or moored. The ground tackle and mooring lines provided must...

  10. 46 CFR 184.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Ground tackle and mooring lines. 184.300 Section 184.300... Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely anchored or moored. The ground tackle and mooring lines provided must...

  11. 46 CFR 184.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Ground tackle and mooring lines. 184.300 Section 184.300... Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely anchored or moored. The ground tackle and mooring lines provided must...

  12. 46 CFR 184.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Ground tackle and mooring lines. 184.300 Section 184.300... Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely anchored or moored. The ground tackle and mooring lines provided must...

  13. 46 CFR 184.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Ground tackle and mooring lines. 184.300 Section 184.300... Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely anchored or moored. The ground tackle and mooring lines provided must...

  14. 33 CFR 62.35 - Mooring buoys.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ....35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION UNITED STATES AIDS TO NAVIGATION SYSTEM The U.S. Aids to Navigation System § 62.35 Mooring buoys. Mooring... identification and to avoid confusion with aids to navigation....

  15. 33 CFR 62.35 - Mooring buoys.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION UNITED STATES AIDS TO NAVIGATION SYSTEM The U.S. Aids to Navigation System § 62.35 Mooring buoys. Mooring... identification and to avoid confusion with aids to navigation....

  16. 33 CFR 62.35 - Mooring buoys.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION UNITED STATES AIDS TO NAVIGATION SYSTEM The U.S. Aids to Navigation System § 62.35 Mooring buoys. Mooring... identification and to avoid confusion with aids to navigation....

  17. 33 CFR 62.35 - Mooring buoys.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ....35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION UNITED STATES AIDS TO NAVIGATION SYSTEM The U.S. Aids to Navigation System § 62.35 Mooring buoys. Mooring... identification and to avoid confusion with aids to navigation....

  18. 33 CFR 62.35 - Mooring buoys.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ....35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION UNITED STATES AIDS TO NAVIGATION SYSTEM The U.S. Aids to Navigation System § 62.35 Mooring buoys. Mooring... identification and to avoid confusion with aids to navigation....

  19. 49 CFR 176.178 - Mooring lines.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... lines. (a) All lines used in mooring the vessel must be of sufficient strength, type, and number for the size of the vessel and local conditions. (b) While the vessel is moored or anchored in a port area... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY VESSEL...

  20. 49 CFR 176.178 - Mooring lines.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... lines. (a) All lines used in mooring the vessel must be of sufficient strength, type, and number for the size of the vessel and local conditions. (b) While the vessel is moored or anchored in a port area... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY VESSEL...

  1. 49 CFR 176.178 - Mooring lines.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... lines. (a) All lines used in mooring the vessel must be of sufficient strength, type, and number for the size of the vessel and local conditions. (b) While the vessel is moored or anchored in a port area... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY VESSEL...

  2. 49 CFR 176.178 - Mooring lines.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... lines. (a) All lines used in mooring the vessel must be of sufficient strength, type, and number for the size of the vessel and local conditions. (b) While the vessel is moored or anchored in a port area... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY VESSEL...

  3. 49 CFR 176.178 - Mooring lines.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... lines. (a) All lines used in mooring the vessel must be of sufficient strength, type, and number for the size of the vessel and local conditions. (b) While the vessel is moored or anchored in a port area... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS CARRIAGE BY VESSEL...

  4. 33 CFR 401.10 - Mooring lines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Mooring lines. 401.10 Section 401.10 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Condition of Vessels § 401.10 Mooring lines. (a)...

  5. 46 CFR 121.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Ground tackle and mooring lines. 121.300 Section 121.300... MISCELLANEOUS SYSTEMS AND EQUIPMENT Mooring and Towing Equipment § 121.300 Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely...

  6. 46 CFR 121.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Ground tackle and mooring lines. 121.300 Section 121.300... MISCELLANEOUS SYSTEMS AND EQUIPMENT Mooring and Towing Equipment § 121.300 Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely...

  7. 46 CFR 121.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Ground tackle and mooring lines. 121.300 Section 121.300... MISCELLANEOUS SYSTEMS AND EQUIPMENT Mooring and Towing Equipment § 121.300 Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely...

  8. 46 CFR 121.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Ground tackle and mooring lines. 121.300 Section 121.300... MISCELLANEOUS SYSTEMS AND EQUIPMENT Mooring and Towing Equipment § 121.300 Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely...

  9. 46 CFR 121.300 - Ground tackle and mooring lines.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Ground tackle and mooring lines. 121.300 Section 121.300... MISCELLANEOUS SYSTEMS AND EQUIPMENT Mooring and Towing Equipment § 121.300 Ground tackle and mooring lines. A vessel must be fitted with ground tackle and mooring lines necessary for the vessel to be safely...

  10. Beyond moore computing research challenge workshop report.

    SciTech Connect

    Huey, Mark C.; Aidun, John Bahram

    2013-10-01

    We summarize the presentations and break out session discussions from the in-house workshop that was held on 11 July 2013 to acquaint a wider group of Sandians with the Beyond Moore Computing research challenge.

  11. Update on TAO moored ORG array

    NASA Technical Reports Server (NTRS)

    Freitag, H. Paul

    1994-01-01

    During the Coupled Ocean Atmosphere Response Experiment (COARE) six TAO moorings were equipped with optical rain gauges (ORG's). In late 1993 moorings deployed on the equator at 154E and 157.5E were recovered and not redeployed as they were augmentations to the TAO array for COARE only. In December 1993, four TAO moorings were equipped with ORG's: one each at 2N, 156E and 2S, 156E and ORG doublets on the equator at 0, 156E and 0, 165E. The 2N, 156E mooring has been lost. By the end of April all sites will have been serviced and six refurbished sensors will again be deployed in the same locations.

  12. Mooring and ground handling rigid airships

    NASA Technical Reports Server (NTRS)

    Walker, H., Jr.

    1975-01-01

    The problems of mooring and ground handling rigid airships are discussed. A brief history of Mooring and Ground Handling Rigid Airships from July 2, 1900 through September 1, 1939 is included. Also a brief history of ground handling developments with large U. S. Navy nonrigid airships between September 1, 1939 and August 31, 1962 is included wherein developed equipment and techniques appear applicable to future large rigid airships. Finally recommendations are made pertaining to equipment and procedures which appear desirable and feasible for future rigid airship programs.

  13. In the Style of Henry Moore

    ERIC Educational Resources Information Center

    Hinshaw, Craig

    2010-01-01

    In this article, the author describes an art project inspired by Henry Moore's sculptures. This project consists of two activities. In the first activity, students select, sand and stain a wood block that would become a base for their plaster sculpture. This activity would keep the students independently engaged (classroom management) while the…

  14. Evolutionary Excesses: A Response to Moore

    ERIC Educational Resources Information Center

    Barr, Stephen M.

    2002-01-01

    The physicist Edward Teller once gave an interview to a woman from a popular science magazine. He began the interview by saying, "You have heard many bad things about the Hydrogen Bomb. Now I am going to tell you some nice things about it." In reflecting upon a response to Dr. Randy Moore, the author thought of Teller, seeing his role here in…

  15. Selection of the mooring system for an FSO vessel

    SciTech Connect

    Chen, B.C.M.

    1996-09-01

    Options to be selected are proposed for the mooring system deployed for a floating-storage-and-offloading (FSO) vessel. The vessel and affiliated installations form a product crude oil exporting facility. Each option is comparatively evaluated against the relevant agenda which is important from view points of facility operation and maintenance. Options for the mooring system include the turret, jacket, and buoy single-point mooring (SPM) systems as well as the spread mooring system. There is no one options which is a one-fit-all agenda for the mooring system. Other generalized conclusions are also presented.

  16. Moore v. Regents of the University of California.

    PubMed

    1988-07-21

    In 1976, John Moore had his spleen removed in the course of treatment for hairy cell leukemia at the UCLA Medical Center. Subsequently, a cell line was developed from Moore's tissues that offered enormous therapeutic value. Doctors applied for patents on the cell line and entered into contracts for its commercial exploitation. Moore claimed the modified tissue to be his own property and sued to recover deserved profits. The trial court dismissed Moore's case because it failed to set forth a proper claim at law. The appellate court reversed, interpreting the claim to be adequate for recovery. The court held that the removed tissue was Moore's property; that consent forms signed by Moore only applied to the removal of tissue and did not imply his consent to its commercial exploitation; and that Moore need not allege either the defendent's knowledge of the cells' value, or of the defendant's intent to exploit the cells, in order to assert his claim. PMID:11648571

  17. A NANO enhancement to Moore's law

    NASA Astrophysics Data System (ADS)

    Wu, Jerry; Shen, Yin-Lin; Reinhardt, Kitt; Szu, Harold

    2012-06-01

    In the past 46 years, Intel Moore observed an exponential doubling in the number of transistors in every 18 months through the size reduction of individual transistor components since 1965. In this paper, we are exploring the nanotechnology impact upon the Law. Since we cannot break down the atomic size barrier, the fact implies a fundamental size limit at the atomic or Nanotechnology scale. This means, no more simple 18 month doubling as in Moore's Law, but other forms of transistor doubling may happen at a different slope in new directions. We are particularly interested in the Nano enhancement area. (i) 3-D: If the progress in shrinking the in-plane dimensions (2D) is to slow down, vertical integration (3D) can help increasing the areal device transistor density and keep us on the modified Moore's Law curve including the 3rd dimension. As the devices continue to shrink further into the 20 to 30 nm range, the consideration of thermal properties and transport in such nanoscale devices becomes increasingly important. (ii) Carbon Computing: Instead of traditional Transistors, the other types of transistors material are rapidly developed in Laboratories Worldwide, e.g. IBM Spintronics bandgap material and Samsung Nano-storage material, HD display Nanotechnology, which are modifying the classical Moore's Law. We shall consider the overall limitation of phonon engineering, fundamental information unit 'Qubyte' in quantum computing, Nano/Micro Electrical Mechanical System (NEMS), Carbon NanoTubes (CNTs), single layer Graphemes, single strip Nano-Ribbons, etc., and their variable degree of fabrication maturities for the computing and information processing applications.

  18. The Economic Implications of Moore's Law

    NASA Astrophysics Data System (ADS)

    Hutcheson, G. D.

    One hundred nanometers is a fundamental technology landmark. It is the demarcation point between microtechnology and nanotechnology. The semiconductor industry crossed it just after the second millennium had finished. In less than 50 years, it had come from transistors made in mils (one-thousandth of an inch or 25.4 microns); to integrated circuits which were popularized as microchips; and then as the third millennium dawned, nanochips. At this writing, nanochips are the largest single sector of nanotechnology. This, in spite of many a nanotechnology expert's prediction that semiconductors would be dispatched to the dustbin of science - where tubes and core memory lie long dead. Classical nanotechnologists should not feel any disgrace, as pundits making bad predictions about the end of technology progression go back to the 1960s. Indeed, even Gordon Moore wondered as he wrote his classic paper in 1965 if his observation would hold into the 1970s. Semiconductors owe their amazing resilience to Moore's law. To truly understand their greater impact, one must understand Moore's law.

  19. Charlotte Moore Sitterly: A Life of Spectroscopy

    NASA Astrophysics Data System (ADS)

    Rubin, Vera C.

    2010-01-01

    Dr. Charlotte Moore Sitterly was a scientist in an era when it was rare for a woman to have the opportunity to devote her life to forefront science. Following her graduation from Swarthmore College in 1920, she accepted a position at Princeton University as an assistant to Henry Norris Russell. In 1925 she started a study of the solar spectrum. She could then not know that she would devote much of her scientific career to gathering basic atomic data that are invaluable to the scientific community, even today. In 1931 she obtained a PhD degree at U. California, Berkeley, and returned to Princeton as a staff member of the Princeton University Observatory. In 1945 she moved to the National Bureau of Science (NBS), to supervise preparation of the widely used tables of atomic energy levels. Following the successful lunching (1946) of a V2 rocket to obtain the ultra violet spectrum of the sun, Moore started working with Richard Tousey and his group at the Naval Research Laboratory (NRL). Ultimately, they extended the solar spectrum down to 2200 angstroms. She continued her affiliations with NBS and NRL until her death in 1990. Charlotte Moore was rare scientist who devoted her career to obtaining accurate numbers, thus enabling the scientific community to open her tables and know that the data are accurate.

  20. Peak mooring forces in the horizontal interlaced multi-layered moored floating pipe breakwater

    NASA Astrophysics Data System (ADS)

    Mane, Vishwanath; Rajappa, Sacchi; Rao, Subba; Vittal, Hegde A.

    2011-06-01

    Present study aims to investigate the influence of relative breakwater width W/L (W=width of breakwater, L=wavelength), wave steepness Hi/gT2 (Hi=incident wave height, T=wave period) and relative wave height d/W (d=water depth) on forces in the moorings of horizontal interlaced multi-layered moored floating pipe breakwater (HIMMFPB) model. Studies were conducted on scaled down physical models having three layers of Poly Vinyl Chloride (PVC) pipes, wave steepness Hi/gT2 varying from 0.063 to 0.849, relative width W/L varying from 0.4 to 2.65 and relative spacing S/D=2 (S=horizontal centre-to-centre spacing of pipes, D=diameter of pipes). Peak mooring forces were also measured and data collected is analyzed by plotting non-dimensional graphs depicting variation of fs/γW2 (fs=Sea side Mooring force, γ=specific weight of water) & fl/γW2 (fl=Lee side Mooring force) with Hi/gT2 for d/W varying from 0.082 to 0.276 and also variation of fs/γW2 and fl/γW2 with W/L for Hi/d varying from 0.06 to 0.400.

  1. Mooring line damping estimation for a floating wind turbine.

    PubMed

    Qiao, Dongsheng; Ou, Jinping

    2014-01-01

    The dynamic responses of mooring line serve important functions in the station keeping of a floating wind turbine (FWT). Mooring line damping significantly influences the global motions of a FWT. This study investigates the estimation of mooring line damping on the basis of the National Renewable Energy Laboratory 5 MW offshore wind turbine model that is mounted on the ITI Energy barge. A numerical estimation method is derived from the energy absorption of a mooring line resulting from FWT motion. The method is validated by performing a 1/80 scale model test. Different parameter changes are analyzed for mooring line damping induced by horizontal and vertical motions. These parameters include excitation amplitude, excitation period, and drag coefficient. Results suggest that mooring line damping must be carefully considered in the FWT design. PMID:25243231

  2. Mooring Line Damping Estimation for a Floating Wind Turbine

    PubMed Central

    Qiao, Dongsheng; Ou, Jinping

    2014-01-01

    The dynamic responses of mooring line serve important functions in the station keeping of a floating wind turbine (FWT). Mooring line damping significantly influences the global motions of a FWT. This study investigates the estimation of mooring line damping on the basis of the National Renewable Energy Laboratory 5 MW offshore wind turbine model that is mounted on the ITI Energy barge. A numerical estimation method is derived from the energy absorption of a mooring line resulting from FWT motion. The method is validated by performing a 1/80 scale model test. Different parameter changes are analyzed for mooring line damping induced by horizontal and vertical motions. These parameters include excitation amplitude, excitation period, and drag coefficient. Results suggest that mooring line damping must be carefully considered in the FWT design. PMID:25243231

  3. 2. Photocopy of Photograph, 1893 (Moore Memorial Library) TEMPORARY SUPPORT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Photocopy of Photograph, 1893 (Moore Memorial Library) TEMPORARY SUPPORT SYSTEM DURING CONSTRUCTION - Christiana Borough Bridge, Bridge Street over Pennsylvania Railroad, Christiana, Lancaster County, PA

  4. 1. Photocopy of photograph, 1893 (Moore Memorial Library) CHRISTIANA BOROUGH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photocopy of photograph, 1893 (Moore Memorial Library) CHRISTIANA BOROUGH BRIDGE CONSTRUCTION CREW - Christiana Borough Bridge, Bridge Street over Pennsylvania Railroad, Christiana, Lancaster County, PA

  5. Mooring Design for the Floating Oscillating Water Column Reference Model.

    SciTech Connect

    Bull, Diana L; Brefort, Dorian

    2014-09-01

    To reduce the price of the reference Backward Bent Duct Buoy (BBDB), a study was done analyzing the effects of reducing the mooring line length, and a new mooring design was developed. It was found that the overall length of the mooring lines could be reduced by 1290 meters, allowing a significant price reduction of the system. In this paper, we will first give a description of the model and the storm environment it will be subject to. We will then give a recommendation for the new mooring system, followed by a discussion of the severe weather simulation results, and an analysis of the conservative and aggressive aspects of the design.

  6. 71. Joe Moore, Photographer. September, 1996. BEVATRON ROOF SHIELDING AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    71. Joe Moore, Photographer. September, 1996. BEVATRON ROOF SHIELDING AND BUILDING TRUSS STRUCTURE - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

  7. Stable platform designs for global DEOS moorings

    NASA Astrophysics Data System (ADS)

    Orcutt, J. A.; Berger, J.; Vernon, F. L.

    2002-12-01

    Oceanography has been dominated for at least two centuries by an expeditionary approach and examples include the voyage of the Beagle in 1831-1836 and the Challenger Expedition in 1872 - 1876. In the U.S., the capabilities for expeditionary research were greatly amplified during and especially following WW II. Today the U.S. alone has established a research fleet of 28 vessels organized through UNOLS. While experimental oceanography has made enormous contributions over the decades and centuries, this approach has not been well suited to investigating processes in which transients are important. The Dynamics of Earth and Ocean Systems (DEOS) program was developed in 1997 to promote the idea of making long-term observations in the oceans - to establish a long-term presence in the oceans. DEOS, now under the sponsorship of the Consortium for Ocean Research and Education (CORE) with support from the NSF, advocates the collection of long-term time-series data with the recognition that this is the only viable approach to observe transients and changes and to enhance the signal-to-noise ratio of weak signals. Moored ocean buoys are a technically feasible approach for making sustained time series observations in the oceans and will be an important component of any long-term ocean observing system. Scripps and Woods Hole developed the ocean mooring systems, designed for decadal time scales, in an NSF-sponsored design study. One of the designs bears a strong familial resemblance to R/P FLIP and is especially well suited for maximizing system life as well as ensuring robust Internet connectivity. I will review this design and describe feasibility experiments conducted to test communications feasibility. Because of the broad spectrum of scientific needs identified during planning, it is clear that there is no single buoy or mooring design that will meet all of these needs while at the same time minimizing costs. An alternative British design may be particularly well suited for

  8. 33 CFR 401.44 - Mooring in locks.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Mooring in locks. 401.44 Section 401.44 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.44 Mooring in locks. (a)...

  9. T. W. Moore on the Ethics of Discrimination.

    ERIC Educational Resources Information Center

    Gregory, Ian

    1983-01-01

    Moore (Journal of Philosophy of Education; v15 p235-40) argues that in some circumstances choosing between individuals on the basis of color, gender, or religion cannot be condemned morally. This article examines whether the considerations that influence Moore's position carry the implications he suggests. (SR)

  10. 33 CFR 88.13 - Lights on moored barges.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Lights on moored barges. 88.13... NAVIGATION RULES ANNEX V: PILOT RULES § 88.13 Lights on moored barges. (a) The following barges shall display at night and if practicable in periods of restricted visibility the lights described in paragraph...

  11. 33 CFR 82.5 - Lights for moored vessels.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... anchor in accordance with Rule 30, or may be lighted on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Lights for moored vessels. 82.5... NAVIGATION RULES 72 COLREGS: INTERPRETATIVE RULES § 82.5 Lights for moored vessels. For the purposes of...

  12. 33 CFR 90.5 - Lights for moored vessels.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Lights for moored vessels. 90.5... NAVIGATION RULES INLAND RULES: INTERPRETATIVE RULES § 90.5 Lights for moored vessels. A vessel at...

  13. 33 CFR 90.5 - Lights for moored vessels.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Lights for moored vessels. 90.5... NAVIGATION RULES INLAND RULES: INTERPRETATIVE RULES § 90.5 Lights for moored vessels. A vessel at...

  14. 33 CFR 88.13 - Lights on moored barges.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Lights on moored barges. 88.13... NAVIGATION RULES ANNEX V: PILOT RULES § 88.13 Lights on moored barges. (a) The following barges shall display at night and if practicable in periods of restricted visibility the lights described in paragraph...

  15. 33 CFR 82.5 - Lights for moored vessels.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... anchor in accordance with Rule 30, or may be lighted on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Lights for moored vessels. 82.5... NAVIGATION RULES 72 COLREGS: INTERPRETATIVE RULES § 82.5 Lights for moored vessels. For the purposes of...

  16. 33 CFR 90.5 - Lights for moored vessels.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Lights for moored vessels. 90.5... NAVIGATION RULES INLAND RULES: INTERPRETATIVE RULES § 90.5 Lights for moored vessels. A vessel at...

  17. 33 CFR 88.13 - Lights on moored barges.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Lights on moored barges. 88.13... NAVIGATION RULES ANNEX V: PILOT RULES § 88.13 Lights on moored barges. (a) The following barges shall display at night and if practicable in periods of restricted visibility the lights described in paragraph...

  18. 33 CFR 90.5 - Lights for moored vessels.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Lights for moored vessels. 90.5... NAVIGATION RULES INLAND RULES: INTERPRETATIVE RULES § 90.5 Lights for moored vessels. A vessel at...

  19. 33 CFR 88.13 - Lights on moored barges.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Lights on moored barges. 88.13... NAVIGATION RULES ANNEX V: PILOT RULES § 88.13 Lights on moored barges. (a) The following barges shall display at night and if practicable in periods of restricted visibility the lights described in paragraph...

  20. 33 CFR 82.5 - Lights for moored vessels.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... anchor in accordance with Rule 30, or may be lighted on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Lights for moored vessels. 82.5... NAVIGATION RULES 72 COLREGS: INTERPRETATIVE RULES § 82.5 Lights for moored vessels. For the purposes of...

  1. 33 CFR 82.5 - Lights for moored vessels.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... anchor in accordance with Rule 30, or may be lighted on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Lights for moored vessels. 82.5... NAVIGATION RULES 72 COLREGS: INTERPRETATIVE RULES § 82.5 Lights for moored vessels. For the purposes of...

  2. 33 CFR 88.13 - Lights on moored barges.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Lights on moored barges. 88.13... NAVIGATION RULES ANNEX V: PILOT RULES § 88.13 Lights on moored barges. (a) The following barges shall display at night and if practicable in periods of restricted visibility the lights described in paragraph...

  3. 33 CFR 90.5 - Lights for moored vessels.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Lights for moored vessels. 90.5... NAVIGATION RULES INLAND RULES: INTERPRETATIVE RULES § 90.5 Lights for moored vessels. A vessel at...

  4. 33 CFR 82.5 - Lights for moored vessels.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... anchor in accordance with Rule 30, or may be lighted on the corners in accordance with 33 CFR 88.13. ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Lights for moored vessels. 82.5... NAVIGATION RULES 72 COLREGS: INTERPRETATIVE RULES § 82.5 Lights for moored vessels. For the purposes of...

  5. Preliminary investigations into mooring forces on a semisubmersible and a turret moored tanker in pack ice, current and waves

    SciTech Connect

    Murray, J.J.; Spencer, D.

    1996-12-01

    Physical model tests were carried out on a scale model of a semisubmersible and a monohull tanker in drifting pack ice. The tests covered a range of drift velocities, directions and ice concentrations. The models were tested in both a fully restrained and moored condition. Data from the experiments were used to develop a semi-empirical numerical model to predict maximum global loads on the mooring system. These results were compared with the maximum loads on the mooring system caused by hydrodynamic forces (waves and current) predicted from a linear numerical model for waves. Analysis results showed that the maximum mooring loads due to the pack ice on the semisubmersible were considerably higher than those caused by the hydrodynamic forces on the same vessel. Also, the maximum mooring loads due to pack ice on the tanker were close to the maximum mooring loads caused by the hydrodynamic forces. Maximum mooring loads related to pack ice forces were realized in ice concentrations of 10/10 coverage while for concentrations less than 6/10 coverage loads attributed to pack ice were negligible in comparison to the hydrodynamic forces. The paper also presents a number of recommendations, based on these findings, to improve the performance of both vessel types and to advance the general state-of-the-art for analysis procedures related to offshore vessel moored in pack ice.

  6. Henry (Hank) J. Moore (1928-1998)

    NASA Astrophysics Data System (ADS)

    Thompson, Thomas W.

    Henry (Hank) J. Moore, a member of the AGU Planetary Sciences section, died of a heart attack on September 21, 1998. He was in Utah while on a family trip to visit his daughter. His 70th birthday occurred just 3 weeks before his death. Henry, who was born in Albuquerque, New Mexico, took great pride in having found and visited the small town of Albuquerque in the Extremadura region of Spain, noting the geologic similarities between that part of Spain and his birthplace in America.Henry, known for his contributions to the Apollo,Viking, Magellan, and Mars Pathfinder missions, attributed his career to a chance encounter with Gene Shoemaker in 1960. Henry was completing his Ph.D. work in geology at Stanford University and Gene obviously had spotted Henry's keen analytical mind. I suspect this pivotal meeting was far from a chance encounter.

  7. The polyester rope taut leg mooring concept: A feasible means for reducing deepwater mooring cost and improving stationkeeping performance

    SciTech Connect

    Winkler, M.M.; McKenna, H.A.

    1995-12-01

    The polyester rope taut leg mooring system offers a unique opportunity to reduce deepwater mooring system cost, while simultaneously improving stationkeeping performance. These gains are over catenary or taut leg systems designed using all steel components. This paper builds upon work presented at prior OTC conferences and focuses on concept feasibility and implementation. Feasibility is addressed from a systems basis including fiber and rope selection, definition of mechanical properties, mooring system integration, and effects of long-term usage. Implementation is believed practical based on current technology and in-place manufacturing capability. Available cyclic tension test results for polyester rope suggest a comparable fatigue performance to wire rope. The most significant challenge facing application of the polyester taut leg mooring concept is the lack of in-service experience compared to conventional steel catenary mooring systems.

  8. Extending the Capabilities of the Mooring Analysis Program: A Survey of Dynamic Mooring Line Theories for Integration into FAST: Preprint

    SciTech Connect

    Masciola, M.; Jonkman, J.; Robertson, A.

    2014-03-01

    Techniques to model dynamic mooring lines come in various forms. The most widely used models include either a heuristic representation of the physics (such as a Lumped-Mass, LM, system), a Finite-Element Analysis (FEA) discretization of the lines (discretized in space), or a Finite-Difference (FD) model (which is discretized in both space and time). In this paper, we explore the features of the various models, weigh the advantages of each, and propose a plan for implementing one dynamic mooring line model into the open-source Mooring Analysis Program (MAP). MAP is currently used as a module for the FAST offshore wind turbine computer-aided engineering (CAE) tool to model mooring systems quasi-statically, although dynamic mooring capabilities are desired. Based on the exploration in this manuscript, the lumped-mass representation is selected for implementation in MAP based on its simplicity, computational cost, and ability to provide similar physics captured by higher-order models.

  9. A Load Cell for the Measurement of Slack Mooring Forces

    NASA Astrophysics Data System (ADS)

    Balaji, R.; Sannasiraj, S. A.; Sundar, V.

    2014-07-01

    A load cell for the measurement of mooring forces is designed using the load-strain principles and the same is verified for its efficiency by structural modeling. A model load cell is fabricated and calibrated through laboratory experiments using three axes loading as well as mooring chain catenary principles. Experiments are also conducted in the physical wave tank to measure the mooring forces exerted on a disc shaped data buoy by using the designed load cell. The details of the design concepts, structural modeling, instrumentation, calibration, wave tank experiments and the results are discussed in this paper.

  10. Evolutionary ethics from Darwin to Moore.

    PubMed

    Allhoff, Fritz

    2003-01-01

    Evolutionary ethics has a long history, dating all the way back to Charles Darwin. Almost immediately after the publication of the Origin, an immense interest arose in the moral implications of Darwinism and whether the truth of Darwinism would undermine traditional ethics. Though the biological thesis was certainly exciting, nobody suspected that the impact of the Origin would be confined to the scientific arena. As one historian wrote, 'whether or not ancient populations of armadillos were transformed into the species that currently inhabit the new world was certainly a topic about which zoologists could disagree. But it was in discussing the broader implications of the theory...that tempers flared and statements were made which could transform what otherwise would have been a quiet scholarly meeting into a social scandal' (Farber 1994, 22). Some resistance to the biological thesis of Darwinism sprung from the thought that it was incompatible with traditional morality and, since one of them had to go, many thought that Darwinism should be rejected. However, some people did realize that a secular ethics was possible so, even if Darwinism did undermine traditional religious beliefs, it need not have any effects on moral thought. Before I begin my discussion of evolutionary ethics from Darwin to Moore, I would like to make some more general remarks about its development. There are three key events during this history of evolutionary ethics. First, Charles Darwin published On the Origin of the Species (Darwin 1859). Since one did not have a fully developed theory of evolution until 1859, there exists little work on evolutionary ethics until then. Shortly thereafter, Herbert Spencer (1898) penned the first systematic theory of evolutionary ethics, which was promptly attacked by T.H. Huxley (Huxley 1894). Second, at about the turn of the century, moral philosophers entered the fray and attempted to demonstrate logical errors in Spencer's work; such errors were alluded

  11. Mary Tyler Moore Helps Launch NIH MedlinePlus Magazine

    MedlinePlus

    ... Issues Mary Tyler Moore Helps Launch NIH MedlinePlus Magazine Past Issues / Winter 2007 Table of Contents For ... Javascript on. Among those attending the NIH MedlinePlus magazine launch on Capitol Hill were (l-r) NIH ...

  12. 72. Joe Moore, Photographer. September, 1996. BEVATRON COOLING TOWERS (3 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    72. Joe Moore, Photographer. September, 1996. BEVATRON COOLING TOWERS (3 SHOWN) AND MOTOR GENERATOR ON RIGHT - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

  13. 4. Photocopy of Photograph, 1893 (Moore Memorial Library) VIEW OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Photocopy of Photograph, 1893 (Moore Memorial Library) VIEW OF OLD AND NEW TRACK ALIGNMENTS AND BRIDGES - Christiana Borough Bridge, Bridge Street over Pennsylvania Railroad, Christiana, Lancaster County, PA

  14. 70. Joe Moore, Photographer. September, 1996. BEVATRON HIGH BAY: SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    70. Joe Moore, Photographer. September, 1996. BEVATRON HIGH BAY: SOUTH SIDE, LOOKING WEST TOWARD 51A - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

  15. Charles Bachman Moore (1920-2010)

    NASA Astrophysics Data System (ADS)

    Winn, William; Krehbiel, Paul

    2011-02-01

    Charles B. Moore passed away 2 March 2010 at the age of 89, following a long and varied scientific career in meteorology and the atmospheric sciences. He will be remembered best for his substantial contributions in the field of atmospheric electricity and for the students and faculty he guided as chairman of Langmuir Laboratory for Atmospheric Research and professor of physics at the New Mexico Institute of Mining and Technology. He possessed a unique sense of humor and an excellent memory that served as a reservoir of scientific and historical knowledge. Like many of his generation, Charlie's career was profoundly influenced by the Second World War. Following Pearl Harbor, he interrupted his undergraduate studies in chemical engineering at Georgia Institute of Technology to enlist in the Army Air Corps, where he became the chief weather equipment officer in the 10th Weather Squadron, setting up and operating remote meteorological stations behind enemy lines in the China-Burma-India theater. He served with distinction alongside Athelstan Spilhaus Sr., who had been one of Charlie's instructors in the Army meteorology program.

  16. James Moores Ball: Ophthalmologist, medical historian, bibliophile.

    PubMed

    Feibel, Robert M

    2016-08-01

    James Moores Ball (1862-1929) was an ophthalmologist in St. Louis, Missouri, who excelled as a medical historian and collector of rare and historic books about the history of anatomy. During his lifetime, he was best known as the author of a comprehensive, authoritative, and popular textbook titled Modern Ophthalmology First published in 1904, there were five further editions. Ball was very interested in the history of anatomy and wrote two books on this subject, the first being a biography of Andreas Vesalius, one of the earliest in English, and the second a history of the resurrection men or grave robbers who sold corpses to professors of anatomy and surgery for teaching purposes. His legacy today is the 470 volumes of his personal library, which are now in the Archives and Rare Books department of the Becker Medical Library of the Washington University School of Medicine. These texts are one of their major collections, concentrating on the history of anatomy, beginning with a first edition of Vesalius's De Humani Corporis Fabrica and holding many important and beautiful landmark volumes of anatomical atlases. PMID:27316691

  17. Josephson-coupled Moore-Read states

    NASA Astrophysics Data System (ADS)

    Möller, Gunnar; Hormozi, Layla; Slingerland, Joost; Simon, Steven H.

    2014-12-01

    We study a quantum Hall bilayer system of bosons at total filling factor ν =1 , and study the phase that results from short-ranged pair tunneling combined with short-ranged interlayer interactions. We introduce two exactly solvable model Hamiltonians which both yield the coupled Moore-Read state [Phys. Rev. Lett. 108, 256809 (2012), 10.1103/PhysRevLett.108.256809] as a ground state, when projected onto fixed particle numbers in each layer. One of these Hamiltonians describes a gapped topological phase, while the other is gapless. However, on introduction of a pair-tunneling term, the second system becomes gapped and develops the same topological order as the gapped Hamiltonian. Supported by the exact solution of the full zero-energy quasihole spectrum and a conformal field-theory approach, we develop an intuitive picture of this system as two coupled composite fermion superconductors. In this language, pair tunneling provides a Josephson coupling of the superconducting phases of the two layers, and gaps out the Goldstone mode associated with particle transport between the layers. In particular, this implies that quasiparticles are confined between the layers. In the bulk, the resulting phase has the topological order of the Halperin 220 phase with U(1)2× U (1)2 topological order, but it is realized in the symmetric/antisymmetric basis of the layer index. Consequently, the edge spectrum at a fixed particle number reveals an unexpected U(1)4× U (1) structure.

  18. Moored current observations in the Mozambique Channel

    NASA Astrophysics Data System (ADS)

    Ridderinkhof, H.; de Ruijter, W. P. M.

    2003-07-01

    Observations from an array of current meter moorings across the narrowest section of the Mozambique Channel are used to study the general characteristics of the current field and to estimate the volume transport through the channel. The observations cover a period of about 19 months in 2000 and 2001. Due to problems in data return, the mean transport time series is constructed using several assumptions. The resulting mean volume transport through the channel is estimated to be 14 Sv southward. The time variability of the volume transport is large and oscillates remarkably regular with minimum and maximum values varying roughly between 20 Sv northwards and 60 Sv southwards. No seasonal variability has been found. The spatial and temporal variability of the currents can be characterised by two different regimes: one with strong currents across the entire section, the other one with weak currents. The former lasts much longer than the latter. During the strong-current regime, an anti-cyclonic eddy is formed, which subsequently migrates southward. The formation of these eddies occurs regularly and is related to the strength of the volume transport through the channel. At intermediate and deep levels against the African continental slope (1500 and 2500 m), a relatively strong and northward flowing Mozambique Undercurrent is observed. The mean northward speed is 4.6 cm s -1 (1500 m) and 4.5 cm s -1 (2500 m).

  19. Sampling efficiency of the Moore egg collector

    USGS Publications Warehouse

    Worthington, Thomas A.; Brewer, Shannon K.; Grabowski, Timothy B.; Mueller, Julia

    2013-01-01

    Quantitative studies focusing on the collection of semibuoyant fish eggs, which are associated with a pelagic broadcast-spawning reproductive strategy, are often conducted to evaluate reproductive success. Many of the fishes in this reproductive guild have suffered significant reductions in range and abundance. However, the efficiency of the sampling gear used to evaluate reproduction is often unknown and renders interpretation of the data from these studies difficult. Our objective was to assess the efficiency of a modified Moore egg collector (MEC) using field and laboratory trials. Gear efficiency was assessed by releasing a known quantity of gellan beads with a specific gravity similar to that of eggs from representatives of this reproductive guild (e.g., the Arkansas River Shiner Notropis girardi) into an outdoor flume and recording recaptures. We also used field trials to determine how discharge and release location influenced gear efficiency given current methodological approaches. The flume trials indicated that gear efficiency ranged between 0.0% and 9.5% (n = 57) in a simple 1.83-m-wide channel and was positively related to discharge. Efficiency in the field trials was lower, ranging between 0.0% and 3.6%, and was negatively related to bead release distance from the MEC and discharge. The flume trials indicated that the gellan beads were not distributed uniformly across the channel, although aggregation was reduced at higher discharges. This clustering of passively drifting particles should be considered when selecting placement sites for an MEC; further, the use of multiple devices may be warranted in channels with multiple areas of concentrated flow.

  20. Obituary: Ben Hawkins Moore, 1921-2003

    NASA Astrophysics Data System (ADS)

    Moore, James F.

    2004-12-01

    Ben H. Moore, emeritus professor of physics, astronomy and earth sciences at St. Cloud State University, Minnesota, died 7 November 2003, in South Padre Island, Texas. Ben was born 18 March 1921, in Kansas City, Missouri, to Fraser D. and Cora R. (Hawkins) Moore. Though his parents provided a strong guiding influence on Ben's development, Ben's career was impacted most clearly by his work as a student and research assistant for Allen Basset (Ben's father-in-law) at Park College. This relationship turned Ben's early interest in chemistry and biology toward a focus on physics. Ben received his undergraduate degree from Park College where he graduated Phi Delta Kappa. He received a MS in physics from Kansas State University. He also did post-masters work at the University of Kansas, the University of Colorado, the University of Washington and Temple University. In addition to his work as a research assistant, Ben taught at Park College as well as Washington Kansas High School, Wyandotte High School, and Kansas City Kansas Junior College before moving to St. Cloud State University in 1960. He retired from this teaching position in May 1982 but remained involved in activities of his department, including some teaching, through most of his years in retirement. Ben's accomplishments were mainly centered on his teaching. His development of courses and his rapport with students consistently brought praise from both his colleagues and his students. Above all, his work involved innovative development of the curriculum in the sciences at St. Cloud State. Soon after his arrival at the university, Ben took over the fledgling field geology course and continued to shape this offering into a program in earth sciences. The popularity of his classes, which attracted both general students and a growing number of majors, finally enabled the university to establish an earth sciences department in the late 1960's and Ben was the first chair of that department. In the mid-1960's Ben took

  1. Impact of mooring activities on carbon stocks in seagrass meadows

    PubMed Central

    Serrano, O.; Ruhon, R.; Lavery, P. S.; Kendrick, G. A.; Hickey, S.; Masqué, P.; Arias-Ortiz, A.; Steven, A.; Duarte, C. M.

    2016-01-01

    Boating activities are one of the causes that threaten seagrass meadows and the ecosystem services they provide. Mechanical destruction of seagrass habitats may also trigger the erosion of sedimentary organic carbon (Corg) stocks, which may contribute to increasing atmospheric CO2. This study presents the first estimates of loss of Corg stocks in seagrass meadows due to mooring activities in Rottnest Island, Western Australia. Sediment cores were sampled from seagrass meadows and from bare but previously vegetated sediments underneath moorings. The Corg stores have been compromised by the mooring deployment from 1930s onwards, which involved both the erosion of existing sedimentary Corg stores and the lack of further accumulation of Corg. On average, undisturbed meadows had accumulated ~6.4 Kg Corg m−2 in the upper 50 cm-thick deposits at a rate of 34 g Corg m−2 yr−1. The comparison of Corg stores between meadows and mooring scars allows us to estimate a loss of 4.8 kg Corg m−2 in the 50 cm-thick deposits accumulated over ca. 200 yr as a result of mooring deployments. These results provide key data for the implementation of Corg storage credit offset policies to avoid the conversion of seagrass ecosystems and contribute to their preservation. PMID:26979407

  2. Impact of PIRATA Moorings in the Operational MERCATOR System

    NASA Astrophysics Data System (ADS)

    Hernandez, F.; Benkiran, M.; Cousin, R.; Du Penhoat, Y.; Greiner, E.; Provost, C.

    2005-12-01

    We test the impact of assimilating PIRATA mooring temperature and salinity data in the new version of the operational MERCATOR model (PSY1V2 system). The ten PIRATA moorings are situated in the tropical Atlantic, between 15°N and 10°S, and data are collected in real time and provided by the CORIOLIS project. Two run experiments were performed, one assimilating altimetric data and all available in situ data (the operational system) and a second one assimilating the same data set but the PIRATA mooring data. The operational system is sensitive to assimilating PIRATA data in the tropics, on the temperature and salinity profiles as well as on the current fields. Global statistical analyses have been used to estimate the reduction of the biases between prevision model and observations. The impact of PIRATA data is positive in the equatorial band where the equatorial thermocline is better simulated (in term of position and temperature gradient). It is also positive in all layers between surface and 500 meters except in the near surface layer (0-30m) where other assimilated data are more numerous and where the impact of mooring data is probably less sensitive. Direct comparisons with ADCP current moorings are also shown. The comparison is encouraging with significant correlations, even though the time series are limited in time and space.

  3. Impact of mooring activities on carbon stocks in seagrass meadows

    NASA Astrophysics Data System (ADS)

    Serrano, O.; Ruhon, R.; Lavery, P. S.; Kendrick, G. A.; Hickey, S.; Masqué, P.; Arias-Ortiz, A.; Steven, A.; Duarte, C. M.

    2016-03-01

    Boating activities are one of the causes that threaten seagrass meadows and the ecosystem services they provide. Mechanical destruction of seagrass habitats may also trigger the erosion of sedimentary organic carbon (Corg) stocks, which may contribute to increasing atmospheric CO2. This study presents the first estimates of loss of Corg stocks in seagrass meadows due to mooring activities in Rottnest Island, Western Australia. Sediment cores were sampled from seagrass meadows and from bare but previously vegetated sediments underneath moorings. The Corg stores have been compromised by the mooring deployment from 1930s onwards, which involved both the erosion of existing sedimentary Corg stores and the lack of further accumulation of Corg. On average, undisturbed meadows had accumulated ~6.4 Kg Corg m‑2 in the upper 50 cm-thick deposits at a rate of 34 g Corg m‑2 yr‑1. The comparison of Corg stores between meadows and mooring scars allows us to estimate a loss of 4.8 kg Corg m‑2 in the 50 cm-thick deposits accumulated over ca. 200 yr as a result of mooring deployments. These results provide key data for the implementation of Corg storage credit offset policies to avoid the conversion of seagrass ecosystems and contribute to their preservation.

  4. Obituary: Ben Hawkins Moore, 1921-2003

    NASA Astrophysics Data System (ADS)

    Moore, James F.

    2004-12-01

    Ben H. Moore, emeritus professor of physics, astronomy and earth sciences at St. Cloud State University, Minnesota, died 7 November 2003, in South Padre Island, Texas. Ben was born 18 March 1921, in Kansas City, Missouri, to Fraser D. and Cora R. (Hawkins) Moore. Though his parents provided a strong guiding influence on Ben's development, Ben's career was impacted most clearly by his work as a student and research assistant for Allen Basset (Ben's father-in-law) at Park College. This relationship turned Ben's early interest in chemistry and biology toward a focus on physics. Ben received his undergraduate degree from Park College where he graduated Phi Delta Kappa. He received a MS in physics from Kansas State University. He also did post-masters work at the University of Kansas, the University of Colorado, the University of Washington and Temple University. In addition to his work as a research assistant, Ben taught at Park College as well as Washington Kansas High School, Wyandotte High School, and Kansas City Kansas Junior College before moving to St. Cloud State University in 1960. He retired from this teaching position in May 1982 but remained involved in activities of his department, including some teaching, through most of his years in retirement. Ben's accomplishments were mainly centered on his teaching. His development of courses and his rapport with students consistently brought praise from both his colleagues and his students. Above all, his work involved innovative development of the curriculum in the sciences at St. Cloud State. Soon after his arrival at the university, Ben took over the fledgling field geology course and continued to shape this offering into a program in earth sciences. The popularity of his classes, which attracted both general students and a growing number of majors, finally enabled the university to establish an earth sciences department in the late 1960's and Ben was the first chair of that department. In the mid-1960's Ben took

  5. Barracuda field: New records for turret moored FPSO`s

    SciTech Connect

    Carneiro, P.R.B.

    1995-12-01

    An early production system will introduce several innovations and set records when it comes on stream at Barracuda, the third largest of the giant oilfields offshore Brazil. The floating production unit will be a 52,000 dwt FPSO, turret type mooring and a process plant with capacity to process 30,000 bopd. It will remain on location for a minimum of five years. The tanker modifications and overhaul are underway. The FPSO will be prepared to process the oil and offload it to a tandem moored shuttle tanker. The produced gas will be both reinjected and exported to shore through a dedicated riser pipeline. This unit will comprise the world`s largest turret with capacity for 34 risers and the world`s deepest FPSO, moored in 840 meters water depth.

  6. Enhanced turret mooring system for harsh environment operation

    SciTech Connect

    Sanna, P.; Askestad, S.; Schoemaker, J.; Hansen, R.E.

    1994-12-31

    Framnaes Engineering AS together with Norsk Hydro AS have developed an enhanced turret mooring system based on proven of the shelf technology for permanent moored production ships with high oil and gas production rates and multi production risers and umbilical systems suitable for harsh weather and North Sea type environmental conditions. The main elements in the turret named FETurr are patented. The design described in this document is for an imaginary field with a production rate of 12000sM3 accommodating 12 risers, however the configurations can be adjusted to fields with more complex subsea systems and higher/lower number of wells. Designs have been performed for up to 24 risers, 9 umbilicals and 12 mooring lines.

  7. Mary Tyler Moore Helps Launch NIH MedlinePlus Magazine

    MedlinePlus

    ... Javascript on. Among those attending the NIH MedlinePlus magazine launch on Capitol Hill were (l-r) NIH Director Dr. Elias Zerhouni, Rep. Ralph Regula (R-OH), Mary Tyler Moore, former Rep. Paul Rogers, and NLM ... issue of NIH MedlinePlus magazine. In September, the FNLM was fortunate to have ...

  8. Picture Books about Blacks: An Interview with Opal Moore.

    ERIC Educational Resources Information Center

    MacCann, Donnarae; Richard, Olga

    1991-01-01

    Presents an interview with Opal Moore, who discusses Black imagery in picture books published in the last four years and the institutions that circulate that imagery. Topics discussed include the issue of race pride; interracial themes; appropriate illustrations; African versus African-American books; and the roles of publishers, books reviewers,…

  9. Maintaining Moore's law: enabling cost-friendly dimensional scaling

    NASA Astrophysics Data System (ADS)

    Mallik, Arindam; Ryckaert, Julien; Mercha, Abdelkarim; Verkest, Diederik; Ronse, Kurt; Thean, Aaron

    2015-03-01

    Moore's Law (Moore's Observation) has been driving the progress in semiconductor technology for the past 50 years. The semiconductor industry is at a juncture where significant increase in manufacturing cost is foreseen to sustain the past trend of dimensional scaling. At N10 and N7 technology nodes, the industry is struggling to find a cost-friendly solution. At a device level, technologists have come up with novel devices (finFET, Gate-All-Around), material innovations (SiGe, Ge) to boost performance and reduce power consumption. On the other hand, from the patterning side, the relative slow ramp-up of alternative lithography technologies like EUVL and DSA pushes the industry to adopt a severely multi-patterning-based solution. Both of these technological transformations have a big impact on die yield and eventually die cost. This paper is aimed to analyze the impact on manufacturing cost to keep the Moore's law alive. We have proposed and analyzed various patterning schemes that can enable cost-friendly scaling. We evaluated the impact of EUVL introduction on tackling the high cost of manufacturing. The primary objective of this paper is to maintain Moore's scaling from a patterning perspective and analyzing EUV lithography introduction at a die level.

  10. Design for a Moore No. 1 1/2 lathe

    SciTech Connect

    Rhorer, R.L.

    1981-01-01

    To increase our capability to machine small spherical parts, we are designing an ultraprecision lathe based on a Moore No. 1 1/2 measuring machine. The machine is being designed for single axis cutting, utilizing an accurate rotary table for spherical cuts. This report summarizes the design and presents an error budget analysis for the design.

  11. Meeting Report: Patrick Moore at the Royal Institution

    NASA Astrophysics Data System (ADS)

    Arditti, D.

    2010-02-01

    'Developments in amateur astronomy: past, present and future'. A special meeting in honour of Sir Patrick Moore to celebrate his 75 years as a BAA member, held on 2009 November 21 at the Royal Institution of Great Britain, Albemarle Street, London W1

  12. Computing the Moore-Penrose Inverse of a Matrix with a Computer Algebra System

    ERIC Educational Resources Information Center

    Schmidt, Karsten

    2008-01-01

    In this paper "Derive" functions are provided for the computation of the Moore-Penrose inverse of a matrix, as well as for solving systems of linear equations by means of the Moore-Penrose inverse. Making it possible to compute the Moore-Penrose inverse easily with one of the most commonly used Computer Algebra Systems--and to have the blueprint…

  13. 33 CFR 401.37 - Mooring at tie-up walls.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Mooring at tie-up walls. 401.37... OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.37 Mooring at tie-up walls. (a) Upon arrival at a lock, a vessel awaiting instructions to advance shall moor at the...

  14. 48 CFR 252.225-7019 - Restriction on acquisition of anchor and mooring chain.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... of anchor and mooring chain. 252.225-7019 Section 252.225-7019 Federal Acquisition Regulations System... and mooring chain. As prescribed in 225.7007-3, use the following clause: Restriction on Acquisition of Anchor and Mooring Chain (DEC 2009)) (a) Definition. “Component,” as used in this clause, means...

  15. 48 CFR 252.225-7019 - Restriction on acquisition of anchor and mooring chain.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... of anchor and mooring chain. 252.225-7019 Section 252.225-7019 Federal Acquisition Regulations System... and mooring chain. As prescribed in 225.7007-3, use the following clause: Restriction on Acquisition of Anchor and Mooring Chain (DEC 2009)) (a) Definition. “Component,” as used in this clause, means...

  16. 48 CFR 252.225-7019 - Restriction on acquisition of anchor and mooring chain.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... of anchor and mooring chain. 252.225-7019 Section 252.225-7019 Federal Acquisition Regulations System... and mooring chain. As prescribed in 225.7007-3, use the following clause: Restriction on Acquisition of Anchor and Mooring Chain (DEC 2009)) (a) Definition. “Component,” as used in this clause, means...

  17. 48 CFR 252.225-7019 - Restriction on acquisition of anchor and mooring chain.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... of anchor and mooring chain. 252.225-7019 Section 252.225-7019 Federal Acquisition Regulations System... and mooring chain. As prescribed in 225.7007-3, use the following clause: Restriction on Acquisition of Anchor and Mooring Chain (DEC 2009)) (a) Definition. “Component,” as used in this clause, means...

  18. Thomas E. Moore's "Sour Sofkee" in the Tradition of Muskogee Dialect Writers

    ERIC Educational Resources Information Center

    Petete, Timothy; Womack, Craig S.

    2006-01-01

    The Muskogee dialect letters provide one of the most interesting combinations of fictional viewpoints and political commentary in American Indian letters. This article features the life story of Thomas E. Moore. This article also presents the fictional literary works of Moore and compares his dialect writings to Alexander Posey. Moore is the most…

  19. 48 CFR 252.225-7019 - Restriction on acquisition of anchor and mooring chain.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... of anchor and mooring chain. 252.225-7019 Section 252.225-7019 Federal Acquisition Regulations System... and mooring chain. As prescribed in 225.7007-3, use the following clause: Restriction on Acquisition of Anchor and Mooring Chain (DEC 2009)) (a) Definition. “Component,” as used in this clause, means...

  20. Technical note: GODESS - a profiling mooring in the Gotland Basin

    NASA Astrophysics Data System (ADS)

    Prien, Ralf D.; Schulz-Bull, Detlef E.

    2016-07-01

    This note describes a profiling mooring with an interdisciplinary suite of sensors taking profiles between 180 and 30 m depth. It consists of an underwater winch, moored below 180 m depth, and a profiling instrumentation platform. In its described setup it can take about 200 profiles at pre-programmed times or intervals with one set of batteries. This allows for studies over an extended period of time (e.g. two daily profiles over a time of 3 months). The Gotland Deep Environmental Sampling Station (GODESS) in the Eastern Gotland Basin of the Baltic Sea is aimed at investigations of redoxcline dynamics. The described system can be readily adapted to other research foci by changing the profiling instrumentation platform and its payload.

  1. Genes and social justice: a Rawlsian reply to Moore.

    PubMed

    Farrelly, Colin

    2002-02-01

    In this article I critically examine Adam Moore's claim that the threshold for overriding intangible property rights and privacy rights is higher, in relation to genetic enhancement techniques and sensitive personal information, than is commonly suggested. I argue that Moore fails to see how important advances in genetic research are to social justice. Once this point is emphasized one sees that the issue of how formidable overriding these rights are is open to much debate. There are strong reasons, on grounds of social justice, for thinking the importance of such rights is likely to be diminished in the interests of ensuring a more just distribution of genes essential to pursuing what John Rawls calls a person's 'rational plan of life'. PMID:12061385

  2. The Moore-Penrose Inverse of Block Magic Rectangles

    ERIC Educational Resources Information Center

    Hakopian, Y. R.; Eloyan, A. N.

    2007-01-01

    As is known, a semi-magic square is an "n x n" matrix having the sum of entries in each row and each column equal to a constant. This note generalizes this notion and introduce a special class of block matrices called "block magic rectangles." It is proved that the Moore-Penrose inverse of a block magic rectangle is also a block magic rectangle.

  3. Intercomparison tests of moored current measurements in the upper ocean

    NASA Astrophysics Data System (ADS)

    Halpern, David; Weller, Robert A.; Briscoe, Melbourne G.; Davis, Russ E.; McCullough, James R.

    1981-01-01

    During the August-September 1977 Mixed Layer Experiment (Mile) and the July-September 1978 Joint Air-Sea Interaction (Jasin) project, moored current measurements were made in the upper ocean with Savonius rotor and vane vector-averaging current meters (VACM), dual orthogonal propeller vector-measuring current meters (VMCM), and dual orthogonal acoustic travel-time vector-averaging current meters (ACM). Wind speeds and significant wave heights reached 20ms-1 and 5 m. The influence of mooring motion upon ACM, VACM, and VMCM measurements are described. In the mixed layer above about 30 m depth where mean currents are relatively large, the effect of a surface-following buoy upon ACM, VACM, and VMCM velocity fluctuations at frequencies less than 0.3 cph was negligible; at frequencies above 4 cph, the VACM data contained the largest amount of mooring induced contamination. Below the mixed layer at depths greater than about 75 m, a subsurface mooring should be used; however, when a surface-following buoy was used, then VMCM data better approximated the spectrum of the fluctuations than VACM data. A spar-buoy should not be used to measure currents at depths as deep as 80 m. The frequency-dependent differences between VACM and VMCM and between VACM and ACM measurements are described. At frequencies less than 0.3 cph, the differences between the VACM and ACM or the VMCM records were not significant with 95% confidence limits, were always positive, and above 80 m depth were less than 20%. At frequencies above 4 cph, the VACM-VMCM differences were about 5 times larger than the VACM-ACM differences.

  4. On tethered sample and mooring systems near irregular asteroids

    NASA Astrophysics Data System (ADS)

    Ren, Yuan; Shan, Jinjun

    2014-10-01

    A tethered asteroid sample and mooring system is investigated in this paper. In this system the spacecraft is moored to the surface of an irregular asteroid such as 216 Kleopatra by using a rocket-propelled anchor with a cable. The rocket-propelled anchor is a kind of space penetrator, which can inject into asteroids at high speeds generated by its own rocket engine. It can be used to explore the interior structure of asteroids, and it can also be used as a sample collector. When the sampling mission is done, the sample can be pulled back to the spacecraft with the anchor. Using this method, the spacecraft can be kept in a safe region in which it cannot be trapped by the gravitational field of the asteroid. This work is concerned with the dynamics of the tethered system near irregular asteroids. First, a shape model and gravitational field model of irregular asteroids are built. Then, the configuration and the stability of the tethered system are investigated, and the quasi-periodic motion near the equilibrium point of the tethered system is analyzed. Finally, the non-uniform density distribution of the asteroids is considered. The deployment process and the oscillation of the tethered system in the uncertain asteroid gravity field are simulated using the Monte Carlo method. The feasibility of the tethered asteroid sample and mooring system is proved.

  5. Development of study on the dynamic characteristics of deep water mooring system

    NASA Astrophysics Data System (ADS)

    Tang, You-Gang; Zhang, Su-Xia; Zhang, Ruo-Yu; Liu, Hai-Xiao

    2007-09-01

    To meet the needs of those exploiting deepwater resources, TLP and SPAR platforms are used in some areas and are considered excellent platforms in deep water. However, many problems remain to be resolved. The design of mooring systems is a key issue for deep water platforms. Environmental loads in deep water effect the physical characteristics of mooring line materials. The configuration and analysis of mooring systems involve nonlinearity due to this fluid-solid coupling, nonlinear hydrodynamic forces, and their effects on stability of motion. In this paper, some pivotal theories and technical questions are presented, including modeling of mooring lines, the theory and method of coupled dynamics analysis on the mooring system, and the development of methodologies for the study of nonlinear dynamics of mooring systems. Further study on mooring systems in deep water are recommended based on current knowledge, particularly dynamic parameters of different materials and cable configuration, interactions between seabed and cable, mechanisms of mooring system response induced by taut/slack mooring cables, discontinuous stiffness due to system materials, mooring construction, and motion instability, etc.

  6. The impact energy of a moored tanker under the action of regular waves

    SciTech Connect

    Yu-Cheng Li

    1982-09-01

    The influence that factors such as mooring line conditions, fender arrangements, dolphin arrangements, degree of ship loading, waves of long period, wave direction, and wind on the impact energy of a moored tanker were studied. Based on systematic test data, a semi-empirical formula was developed to calculate the impact energy of the moored ship on the berthing facilities under the action of regular waves. It was shown by experiment that this method is suitable for calculating the impact energy of moored ships of capacities as great as 200 X 10/sup 3/ t.

  7. Patrick Moore's millennium yearbook : the view from AD 1001

    NASA Astrophysics Data System (ADS)

    Moore, Patrick, Chapman, Allan

    In a year that will probably be remembered almost as much for books about the millennium as for the turn of 2000 A.D itself, Patrick Moore's Millennium Yearbook celebrates.....well, the wrong millennium! This thoroughly entertaining book - which is for everyone, not just astronomers - contains articles on King Alfred's chronological work, reviews of the new Star Catalogue by the Arab Al-Sufi and the latest edition of Ptolemy's Almagast. And foreshadowing the change to metric units by 1000 years, the book uses arabic numbers instead of Roman - but there is a conversion table if you have trouble with the idea of "zero" and prefer the older system.

  8. Intel turns to photonics to extend Moore's law

    NASA Astrophysics Data System (ADS)

    Hitz, Breck

    2009-07-01

    Mario Paniccia settles into his chair with an air of confidence that comes from having been right all along. "We have done all the things that sceptics said we could not," he says. Paniccia, who is director of Intel's Photonics Technology Laboratory in Santa Clara, California, ticks off his group's accomplishments: silicon lasers; high-speed silicon modulators; fast, sensitive silicon photodetectors in the infrared. "We have got beyond the proof-of-principle stage," he says. "Now we're putting it all together so that Moore's law can extend for decades into the future."

  9. Cabled-observatory Regional Circulation Moorings on the Endeavour segment of the Juan de Fuca Ridge

    NASA Astrophysics Data System (ADS)

    Mihaly, S. F.

    2011-12-01

    In September of 2010, one of four moorings was deployed on the Endeavour node of the NEPTUNE Canada cabled-observatory network. The installation included the laying of a 7km cable from the node to the mooring site in the axial valley about 3km north of the Main Endeavour Vent Field over extraordinary bathymetry. This September, three more cables and secondary junction boxes will be deployed to support the three additional moorings that complete the regional circulation array. The cable-laying is facilitated by the Canadian Scientific Submersible Facility's ROV ROPOS and a remotely operated cable-laying system, whereas the actual deployment of the moorings is a two ship operation. The CCGS John P. Tully lowers the mooring anchor first, while the RV Thomas G. Thompson supports the ROV operations which navigate the mooring to underwater mateable cable end. Precise navigation is needed because there are few areas suitable for placement of the junction boxes. Scientifically, the moorings are designed and located to best constrain the hydrothermally driven circulation within the rift valley, the regional circulation can then be used as a proxy measurement for hydrothermal fluxes. Each mooring carries a current meter/ ctd pair at 4, 50, 125, and 200m, with an upward looking ADCP at 250m. The northern moorings are located between the Hi-Rise and Salty Dawg fields about 700m apart in the ~1km wide rift valley and the southern moorings are located south of the Mothra vent field. Here we present initial results from the four mooring array.

  10. Samuel Preston Moore: Surgeon-General of the Confederacy.

    PubMed

    Purcell, P N; Hummel, R P

    1992-10-01

    Samuel Preston Moore was trained as a military surgeon in the US Army but resigned his commission and was appointed Surgeon-General of the Confederate States Army Medical Department at the beginning of the American Civil War. He reformed the mediocre medical corps by raising recruiting standards and improving treatment protocols and by placing the most capable surgeons in positions of authority. He improved the ambulance corps and directed the construction of many new hospitals for Confederate casualties. He was directly responsible for the barracks hospital design, which is still used today. He established the Confederate States Medical and Surgical Journal and directed a successful effort to develop substitutes for scarce pharmaceuticals from the indigenous flora of the South. He founded the Association of Army and Navy Surgeons of the Confederate States of America. With skill and dedication, Dr. Moore transformed the medical corps into one of the most effective departments of the Confederate military and was responsible for saving thousands of lives on the battlefield. PMID:1415944

  11. Tender mooring for infill drilling operations: A case study

    SciTech Connect

    1997-04-01

    The Tapis-pump platform is a four-leg jacket structure located 230 ft south of the Tapis-D platform and connected to it by a walkway bridge. All crude production (360,000 B/D) from Esso Production Malaysia Inc. (EPMI) wells in the South China Sea offshore Terengganu is piped to the Tapais-pump platform for pumping to an onshore terminal. The continuous operation of this platform is essential. The Tapis-D platform is a manned production platform that also acts as a central communication center and emergency response command center for EPMI`s offshore operations in the South China Sea. A total of nine wells is planned for an infill drilling program at the Tapis-D platform. The rig selected for this infill drilling program is a self-erecting tender-assisted rig that uses an eight-point wire rope mooring system. Eleven pipelines are connected to the Tapis-pump/Tapis-D platform complex. All the pipelines were laid on the seafloor without any special external protection and were not tied down or anchored. The paper describes the planning of the mooring system for drilling.

  12. 33 CFR 147.1106 - Exxon Santa Ynez offshore storage and treatment vessel mooring safety zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Exxon Santa Ynez offshore storage and treatment vessel mooring safety zone. 147.1106 Section 147.1106 Navigation and Navigable Waters... § 147.1106 Exxon Santa Ynez offshore storage and treatment vessel mooring safety zone. (a)...

  13. 33 CFR 401.37 - Mooring at tie-up walls.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Mooring at tie-up walls. 401.37...-up walls. (a) Upon arrival at a lock, a vessel awaiting instructions to advance shall moor at the tie-up wall, close up to the designated limit or approach sign or to the ship preceding it, whichever...

  14. 33 CFR 401.37 - Mooring at tie-up walls.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Mooring at tie-up walls. 401.37...-up walls. (a) Upon arrival at a lock, a vessel awaiting instructions to advance shall moor at the tie-up wall, close up to the designated limit or approach sign or to the ship preceding it, whichever...

  15. 33 CFR 401.37 - Mooring at tie-up walls.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Mooring at tie-up walls. 401.37...-up walls. (a) Upon arrival at a lock, a vessel awaiting instructions to advance shall moor at the tie-up wall, close up to the designated limit or approach sign or to the ship preceding it, whichever...

  16. 33 CFR 401.37 - Mooring at tie-up walls.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Mooring at tie-up walls. 401.37...-up walls. (a) Upon arrival at a lock, a vessel awaiting instructions to advance shall moor at the tie-up wall, close up to the designated limit or approach sign or to the ship preceding it, whichever...

  17. Using the "Mary Tyler Moore Show" as a Feminist Teaching Tool

    ERIC Educational Resources Information Center

    Jule, Allyson

    2010-01-01

    This paper explores the use of "The Mary Tyler Moore Show" as a teaching tool used with a group of final-year undergraduate students who gathered together last academic year (2007-8) to explore Women in Leadership, as part of a Communications course. The research focus was: How can the use of "The Mary Tyler Moore Show" (a 1970-7 American…

  18. Welcome Home Annie: Rethinking Ellis Island and Annie Moore in the Classroom

    ERIC Educational Resources Information Center

    Mercurio, Mia

    2008-01-01

    The story of the United States and the people who have made it their home would not be complete without considering the experience of Irish immigrants--particularly the experience of Annie Moore, the first immigrant to be processed on Ellis Island. However, the story of Annie Moore, and how it has been recounted and taught to date, is inaccurate.…

  19. Benjamin Moore, Science, and Medical Planning in Early Twentieth-Century Britain

    ERIC Educational Resources Information Center

    Lawson, Gordon S.

    2008-01-01

    Benjamin Moore (1867-1922), physiologist and biochemist, was an eminent member of the British scientific and medical community in the early twentieth century. As a founder and president of the State Medical Services Association (SMSA) from its establishment in 1912 until his untimely death in 1922, Moore was a prominent medical services activist…

  20. Transaction Performance vs. Moore's Law: A Trend Analysis

    NASA Astrophysics Data System (ADS)

    Nambiar, Raghunath; Poess, Meikel

    Intel co-founder Gordon E. Moore postulated in his famous 1965 paper that the number of components in integrated circuits had doubled every year from their invention in 1958 until 1965, and then predicted that the trend would continue for at least ten years. Later, David House, an Intel colleague, after factoring in the increase in performance of transistors, concluded that integrated circuits would double in performance every 18 months. Despite this trend in microprocessor improvements, your favored text editor continues to take the same time to start and your PC takes pretty much the same time to reboot as it took 10 years ago. Can this observation be made on systems supporting the fundamental aspects of our information based economy, namely transaction processing systems?

  1. Autonomous and rapid deployment of a compact taut-wire mooring

    NASA Astrophysics Data System (ADS)

    Hillebrand, Theo; van Heerwaarden, Johan; Laan, Martin; Bakker, Roel; Groenewegen, Ruud; van Haren, Hans

    2011-12-01

    The deployment time of a taut-wire mooring is reduced to the time any transportation/hoisting device needs to put a payload at the sea surface. This is a matter of minutes rather than hours needed for deployment of long deep-ocean moorings in the regular way. It is achieved by extending the basic function of mooring parts to temporarily form a Launcher for Oceanographic Equipment and Instruments (LOEI). Full preparation of the mooring is done onshore where the instruments are prepared and programmed, and spooled onto the top-buoy together with the line. At sea, no other gear is required than a device that is able to lift a load of, say, 2000 kg, even for long deep-ocean moorings. The compact mooring method realizes considerable budget savings through deployments from non-research vessels and airborne transportation-deployment. Limitations lay in size and weight of the oceanographic instruments. We present a test-design shaped as a barbell and loaded with 940 m line and 3 current meters. Unfurling speed was maximally 2.3 m s -1 and the descent speed amounted 1.2 m s -1 until landing on the seabed. These speeds are comparable to those acquired during a conventional free-falling mooring deployment.

  2. Optimization and automation of the semi-submersible platforms mooring design

    SciTech Connect

    Ferrari, J.A. Jr.; Morooka, C.K.

    1994-12-31

    There are a few calculation programs around the world used for determining the main aspects of the Mooring Design of Semi-Submersible Platforms . These programs bold a worldwide acknowledgement and their results are actually reliable. But they require many runs to get a solution that comply with the Classification Society requirements. This paper presents some procedures in order to optimize the semi-submersible mooring design as well as to make it automatic. Regarding the optimization philosophies, the following aspects are treated: (1) the optimization of the platform heading and the mooring pattern based on the spreading of the environmental forces; (2) the searching for the optimum mooring line composition in an automatic mode. Basically, the paper`s main goal is to introduce some methods to find the lowest cost solution for the mooring system in a short time. All of these methods were computationally implemented creating the intelligent system named PROANC, which deals with the semi-submersible mooring design in a quasi-static and deterministic approach. It should be noted that the proposed system exerts a strong appeal as a design tool for feasibility studies of a given oil field and its quasi-static results can be directly applied to a mooring program capable of performing dynamic analysis. Finally some simulations are executed for different water depths and its final results, including the expended time to run, are presented in order to prove the PROANC system wide potential as a design tool.

  3. Load transfer with the Austin Moore cementless hip prosthesis.

    PubMed

    Keaveny, T M; Bartel, D L

    1993-03-01

    More than 1,300 Austin Moore hemiarthroplasties have been reviewed in the literature, with no reports of fracture of the stem. Many patients with these hip implants had good function. The lack of stem fractures in patients with good functions has not been explained and contrasts with stem fractures that have occurred in patients with cemented prostheses of other designs during the same time. We used three-dimensional finite-element analysis and free-body diagrams to explain the lack of fractures for this device by a description of the probable load-transfer mechanisms between the prosthesis and the bone. Results from our finite-element analysis indicate that, with good calcar-collar support, the stresses in the stem are small because the stem portion of the prosthesis and the bone are uncoupled and, consequently, do not share the resultant bending moment of the head and abductor forces. If the stem is coupled to the bone so that the resultant bending moment is shared, high stresses in the stem are predicted; such stresses are inconsistent with the complete absence of fractures of these prostheses. The results of the finite-element analysis further showed that loss of calcar-collar support with proximal fixation through the fenestrations resulted in high stresses in the stem and stress shielding of the proximal medial cortex. The uncoupled prosthesis also may be modeled with a free-body diagram as a three-force member loaded at the head, stem tip, and in the proximal region. With this model, it can be shown that the reaction force of the stem tip, and thus the peak bending stress in the stem, increases as calcar-collar support is decreased. If there is no calcar-collar support, proximal support must be provided by some combination of integration of bone in the fenestrations and wedging due to the lateral-medial taper of the device. Stresses in the stem are largest when there is no wedging, but high stresses develop in the cancellous bone in the fenestrations. When

  4. Time domain simulation of a one line failure for a DP-assisted mooring system

    NASA Astrophysics Data System (ADS)

    Zhu, Jianxun; Sun, Liping; Liu, Shengnan; Kang, Jichuang

    2014-09-01

    This paper focuses on the research of a semi-submersible platform equipped with a DP-assisted mooring system. Based on the working principles of the DP-assisted mooring system and the model of the platform motion, a time domain simulation program is applied to analyze the impact, in the case of one line failure, on the platform motion, power consumption of the thrusters and the tension of the mooring lines. The results show that, under the 10-year wind dominant, a one line failure will have little impact on the tension of the mooring lines. When the failure line is windward, the power consumption will increase greatly with a weakened position of accuracy. However when the failure line is leeward, the power consumption will be reduced with a partly strengthened position of accuracy.

  5. Design and implementation of a new low-cost subsurface mooring system for efficient data recovery

    SciTech Connect

    Tian, Chuan; Deng, Zhiqun; Tian, Jiwei; Zhao, Wei; Song, Dalei; Xu, Ming; Xu, Xiaoyang; Lu, Jun

    2013-09-23

    Mooring systems are the most effective method for making sustained time series observations in the oceans. Generally there are two types of ocean mooring systems: surface and subsurface. Subsurface mooring system is less likely to be damaged after deployment than surface system. However, subsurface system usually needs to be retrieved from the ocean for data recovery. This paper describes the design and implementation of a new low-cost subsurface mooring system for efficient data recovery: Timed Communication Buoy System (TCBS). TCBS is usually integrated in the main float and the designated data is downloaded from the control system. After data retrieval, TCBS will separate from main float, rise up to the sea surface, and transmit data by satellite communication.

  6. MOORE: A prototype expert system for diagnosing spacecraft problems

    NASA Technical Reports Server (NTRS)

    Howlin, Katherine; Weissert, Jerry; Krantz, Kerry

    1988-01-01

    MOORE is a rule-based, prototype expert system that assists in diagnosing operational Tracking and Data Relay Satellite (TDRS) problems. It is intended to assist spacecraft engineers at the TDRS ground terminal in trouble shooting problems that are not readily solved with routine procedures, and without expert counsel. An additional goal of the prototype system is to develop in-house expert system and knowledge engineering skills. The prototype system diagnoses antenna pointing and earth pointing problems that may occur within the TDRS Attitude Control System (ACS). Plans include expansion to fault isolation of problems in the most critical subsystems of the TDRS spacecraft. Long term benefits are anticipated with use of an expert system during future TDRS programs with increased mission support time, reduced problem solving time, and retained expert knowledge and experience. Phase 2 of the project is intended to provide NASA the necessary expertise and capability to define requirements, evaluate proposals, and monitor the development progress of a highly competent expert system for NASA's Tracking Data Relay Satellite. Phase 2 also envisions addressing two unexplored applications for expert systems, spacecraft integration and tests (I and T) and support to launch activities. The concept, goals, domain, tools, knowledge acquisition, developmental approach, and design of the expert system. It will explain how NASA obtained the knowledge and capability to develop the system in-house without assistance from outside consultants. Future plans will also be presented.

  7. Mooring system of ocean turbulence observation based on submerged buoy

    NASA Astrophysics Data System (ADS)

    Song, Da-lei; Sun, Jing-jing; Xue, Bing; Jiang, Qian-li; Wu, Bing-wei

    2013-06-01

    A comparison experiment has been taken in the Kiaochow Bay between a newly designed mooring turbulence observation instrument (MTOI) and microstructure profiler MSS60 made by Sea & Sun. The whole observing system is based on a submerged buoy, in which the turbulence observation instrument is embedded, with a streamline-shape floating body, which is made of buoyancy material of glass microsphere. For the movement of seawater and the cable shaking strongly anytime influence the behaviors of the floating body, the accelerate sensors are used for the vibration measurement in the instrument together with the shear probe sensor. Both the vibration data and the shear data are acquired by the instrument at the same time. During data processing, the vibration signals can be removed and leave the shear data which we really need. In order to prove the reliability of the new turbulence instrument MTOI, a comparison experiment was designed. The measuring conditions are the same both in time and space. By this way, the two groups of data are comparable. In this paper, the conclusion gives a good similarity of 0.93 for the two groups of shear data in dissipation rate. The processing of the data acquired by MTOI is based on the cross-spectrum analysis, and the dissipation rate of it matches the Nasmyth spectrum well.

  8. Moored surface buoy observations of the diurnal warm layer

    NASA Astrophysics Data System (ADS)

    Prytherch, J.; Farrar, J. T.; Weller, R. A.

    2013-09-01

    An extensive data set is used to examine the dynamics of diurnal warming in the upper ocean. The data set comprises more than 4700 days of measurements at five sites in the tropics and subtropics, obtained from surface moorings equipped to make comprehensive meteorological, incoming solar and infrared radiation, and high-resolution subsurface temperature (and, in some cases, velocity) measurements. The observations, which include surface warmings of up to 3.4°C, are compared with a selection of existing models of the diurnal warm layer (DWL). A simple one-layer physical model is shown to give a reasonable estimate of both the magnitude of diurnal surface warming (model-observation correlation 0.88) and the structure and temporal evolution of the DWL. Novel observations of velocity shear obtained during 346 days at one site, incorporating high-resolution (1 m) upper ocean (5-15 m) acoustic Doppler current profile measurements, are also shown to be in reasonable agreement with estimates from the physical model (daily maximum shear model-observation correlation 0.77). Physics-based improvements to the one-layer model (incorporation of rotation and freshwater terms) are discussed, though they do not provide significant improvements against the observations reported here. The simplicity and limitations of the physical model are used to discuss DWL dynamics. The physical model is shown to give better model performance under the range of forcing conditions experienced across the five sites than the more empirical models.

  9. Evolution and formation of North Atlantic Eighteen Degree Water in the Sargasso Sea from moored data

    NASA Astrophysics Data System (ADS)

    Davis, Xujing Jia; Straneo, Fiammetta; Kwon, Young-Oh; Kelly, Kathryn A.; Toole, John M.

    2013-07-01

    Two profiling subsurface moorings were deployed as part of the CLIvar MOde Water Dynamics Experiment (CLIMODE) to study the formation and evolution of Eighteen Degree Water (EDW) from November 2006 to November 2007. Both moorings were deployed south of the Gulf Stream in the EDW outcrop region, the northwestern part of the subtropical gyre of the North Atlantic. The two moorings captured the seasonal evolution of EDW characterized by gradual mixed layer deepening and wintertime outcrop, rapid restratification from May to June and slower dissipation during the rest of the year. Superimposed on this seasonal cycle, the moored records are characterized by high frequency passing of eddies with a characteristic time scale of ˜10 days, i.e. it took about 10 days for eddies to pass the mooring sites. The net impact of these eddy fluxes is evaluated by analyzing one-dimensional heat and salt budgets of the upper ocean at the moorings and comparing them to the local air-sea fluxes. It is shown that oceanic lateral fluxes converge heat and salt into the formation region during winter thus offsetting the heat loss to the atmosphere and influencing the formation of EDW. A comparison with results from a one-dimensional model shows that without the lateral fluxes EDW would outcrop earlier and it would be colder and fresher. The warm, salty waters transported into the region originate from the Gulf Stream and this suggests that frontal processes likely play a fundamental role in EDW formation and its evolution.

  10. Underwater application of quantitative PCR on an ocean mooring.

    PubMed

    Preston, Christina M; Harris, Adeline; Ryan, John P; Roman, Brent; Marin, Roman; Jensen, Scott; Everlove, Cheri; Birch, James; Dzenitis, John M; Pargett, Douglas; Adachi, Masao; Turk, Kendra; Zehr, Jonathon P; Scholin, Christopher A

    2011-01-01

    The Environmental Sample Processor (ESP) is a device that allows for the underwater, autonomous application of DNA and protein probe array technologies as a means to remotely identify and quantify, in situ, marine microorganisms and substances they produce. Here, we added functionality to the ESP through the development and incorporation of a module capable of solid-phase nucleic acid extraction and quantitative PCR (qPCR). Samples collected by the instrument were homogenized in a chaotropic buffer compatible with direct detection of ribosomal RNA (rRNA) and nucleic acid purification. From a single sample, both an rRNA community profile and select gene abundances were ascertained. To illustrate this functionality, we focused on bacterioplankton commonly found along the central coast of California and that are known to vary in accordance with different oceanic conditions. DNA probe arrays targeting rRNA revealed the presence of 16S rRNA indicative of marine crenarchaea, SAR11 and marine cyanobacteria; in parallel, qPCR was used to detect 16S rRNA genes from the former two groups and the large subunit RuBisCo gene (rbcL) from Synecchococcus. The PCR-enabled ESP was deployed on a coastal mooring in Monterey Bay for 28 days during the spring-summer upwelling season. The distributions of the targeted bacterioplankon groups were as expected, with the exception of an increase in abundance of marine crenarchaea in anomalous nitrate-rich, low-salinity waters. The unexpected co-occurrence demonstrated the utility of the ESP in detecting novel events relative to previously described distributions of particular bacterioplankton groups. The ESP can easily be configured to detect and enumerate genes and gene products from a wide range of organisms. This study demonstrated for the first time that gene abundances could be assessed autonomously, underwater in near real-time and referenced against prevailing chemical, physical and bulk biological conditions. PMID:21829630

  11. Total hip arthroplasty for failed aseptic Austin Moore prosthesis

    PubMed Central

    Bhosale, Pradeep; Suryawanshi, Ashish; Mittal, Amber

    2012-01-01

    Background: Though Austin Moore (AM) replacement prosthesis has fairly good short term results for intracapsular femoral neck fractures in the elderly, it still is a compromised option and has a high failure rate in the long run. The objective of the present retrospective study is to analyze the functional outcome, assess survivorship of revision total hip arthroplasty (THA) at mid to long term followup, and evaluate intraoperative difficulties faced during conversion of failed aseptic AM prosthesis to cemented THA. Materials and Methods: Eighty-nine cemented THA surgeries for failed AM prosthesis were performed between 1986 and 2005. AM failures were classified into seven groups on the basis of mode of failure. Infected failures were excluded from the study. There were 35 men and 54 women in the study group. The mean age was 68 years (range 57–91 years). Mean followup was 8 years (range 5–13 years). Results: Average Harris Hip Score improved from 65 preoperatively (range 42–73) to 87 (range 76–90) at 1 year postoperatively and to 86 (range 75–89) at the last followup. The overall complication rate was 4.5%. Conclusion: Conversion THA is an excellent treatment strategy for symptomatic failed AM hemiarthroplasty in terms of pain relief and restoration of function and mobility as near as possible to the preinjury level. Also, hemiarthroplasty should not be used in physically active patients, even in elderly individuals. Careful patient selection for hemiarthroplasty versus THA is vital and may decrease the incidence of complications and ameliorate the outcomes in the treatment of intracapsular femoral neck fractures. PMID:22719116

  12. Underwater Application of Quantitative PCR on an Ocean Mooring

    PubMed Central

    Preston, Christina M.; Harris, Adeline; Ryan, John P.; Roman, Brent; Marin, Roman; Jensen, Scott; Everlove, Cheri; Birch, James; Dzenitis, John M.; Pargett, Douglas; Adachi, Masao; Turk, Kendra; Zehr, Jonathon P.; Scholin, Christopher A.

    2011-01-01

    The Environmental Sample Processor (ESP) is a device that allows for the underwater, autonomous application of DNA and protein probe array technologies as a means to remotely identify and quantify, in situ, marine microorganisms and substances they produce. Here, we added functionality to the ESP through the development and incorporation of a module capable of solid-phase nucleic acid extraction and quantitative PCR (qPCR). Samples collected by the instrument were homogenized in a chaotropic buffer compatible with direct detection of ribosomal RNA (rRNA) and nucleic acid purification. From a single sample, both an rRNA community profile and select gene abundances were ascertained. To illustrate this functionality, we focused on bacterioplankton commonly found along the central coast of California and that are known to vary in accordance with different oceanic conditions. DNA probe arrays targeting rRNA revealed the presence of 16S rRNA indicative of marine crenarchaea, SAR11 and marine cyanobacteria; in parallel, qPCR was used to detect 16S rRNA genes from the former two groups and the large subunit RuBisCo gene (rbcL) from Synecchococcus. The PCR-enabled ESP was deployed on a coastal mooring in Monterey Bay for 28 days during the spring-summer upwelling season. The distributions of the targeted bacterioplankon groups were as expected, with the exception of an increase in abundance of marine crenarchaea in anomalous nitrate-rich, low-salinity waters. The unexpected co-occurrence demonstrated the utility of the ESP in detecting novel events relative to previously described distributions of particular bacterioplankton groups. The ESP can easily be configured to detect and enumerate genes and gene products from a wide range of organisms. This study demonstrated for the first time that gene abundances could be assessed autonomously, underwater in near real-time and referenced against prevailing chemical, physical and bulk biological conditions. PMID:21829630

  13. Building oceanographic moorings in a non-lab introductory ocean science course

    NASA Astrophysics Data System (ADS)

    Miller, I. M.

    2014-12-01

    A methodology for building low-cost ocean moorings in an introductory ocean sciences course, using HOBO temperature and light pendants, is presented. The moorings, which collect water temperature and light intensity data at high temporal frequency and at multiple depths, are relatively inexpensive, with a total cost of approximately 15 to 30 per student, depending on the configuration. Deployments of multiple months, or even longer, are possible, but in this presentation two ~3-week long deployments are described. Students in an Introduction to Oceanography course at Peninsula College in Port Angeles, Washington (USA) designed and constructed moorings for deployment in an enclosed harbor at depths of ~8 meters. The HOBO pendants integrated into the moorings were set to log observations at one hour intervals. After mooring recovery students downloaded data, which were both incorporated into class lessons where feasible, but were also utilized in a fully inquiry-based research paper. The exercise was often cited in students' evaluations as a highlight, and served to both teach and reinforce oceanographic concepts, introduce students to professional options within ocean science and engineering fields, and provide skills training (by requiring students to work in Excel for data manipulation, for example).

  14. Dynamics of the interaction of mooring line with the sea bed

    SciTech Connect

    Inoue, Y.; Surendran, S.

    1994-12-31

    Lumped Mass method is a proven numerical approach to analyze the problems of mooring lines. The two-dimensional method was originally developed by Walton and Polachek (1959) for various conditions of frequency and amplitude. Nakajima et al (1982) carried out investigation on the dynamics of mooring lines. In this paper, the interaction of mooring line with the ocean bottom is highlighted and the resulted reduction in dynamic tension is discussed. The line is divided into finite number of lumped masses and linear springs without mass. The damping, associated with the interaction of vibrating chain with the sea bed which is considered to be elastic, is incorporated in the computations. In normal case some part of mooring line will be on the surface of sea floor. Modification to the lumped mass method is done in view of the changed external forces with the change of mode of velocity amplitude along the length of the chain embedded in the sea bottom media. The validation of the modified Lumped Mass method is confirmed by comparing the dynamics of chain on elastic foundation by N.C. Perkins (1990). The sea floor conditions can be found varied for different locations of anchoring and the properties of the sea bottom media influences energy dissipation when the mooring line is interacting with it. The dynamic behavior of chain will be different depending upon the change in sea bottom conditions.

  15. Frontiers of More than Moore in Bioelectronics and the Required Metrology Needs

    NASA Astrophysics Data System (ADS)

    Guiseppi-Elie, Anthony; Kotanen, Christian; Wilson, A. Nolan

    2011-11-01

    Silicon's intersection with biology is a premise inherent in Moore's prediction. Distinct from biologically inspired molecular logic and storage devices (more Moore) are the integration of solid state electronic devices with the soft condensed state of the body (more than Moore). Developments in biomolecular recognition events per sq. cm parallel those of Moore's Law. However, challenges continue in the area of "More than Moore". Two grand challenge problems must be addressed—the biocompatibility of synthetic materials with the myriad of tissue types within the human body and the interfacing of solid state micro- and nano-electronic devices with the electronics of biological systems. Electroconductive hydrogels have been developed as soft, condensed, biomimetic but otherwise inherently electronically conductive materials to address the challenge of interfacing solid state devices with the electronics of the body, which is predominantly ionic. Nano-templated interfaces via the oriented immobilization of single walled carbon nanotubes (SWCNTs) onto metallic electrodes have engendered reagentless, direct electron transfer between biological redox enzymes and solid state electrodes. In addressing these challenges, metrology needs and opportunities are found in such widely diverse areas as single molecule counting and addressing, sustainable power requirements such as the development of implantable biofuel cells for the deployment of implantable biochips, and new manufacturing paradigms to address plura-biology needs on solid state devices.

  16. Conceptual design and comparison of aramid and polyester taut leg spread moorings for deepwater applications

    SciTech Connect

    Wilde, B.; Kelly, P.; Librino, F.; Whitehill, A.S.

    1996-12-31

    As the offshore industry looks beyond water depths of 3,000 ft for future oil and gas production, the industry standard steel catenary spread mooring (CSM) system used on all floating production systems installed to date becomes increasingly inefficient and costly. An alternative to the CSM is the Taut Leg Spread Mooring (TLSM) system with its characteristic short scope legs and vertically loaded anchors. In water depths greater than 3,000 ft, it has been shown that TLSMs comprised of synthetic mooring lines have performance advantages over systems utilizing steel wire rope and demonstrated potential for significant cost reductions. Early studies investigated the use of aramid fiber rope due to its high strength, lower in-water weight and lower axial stiffness as compared to ropes made from steel. Later studies indicated that the material properties of polyester fiber, primarily its lower Young`s modulus, made polyester mooring lines more suitable for use in TLSMs. As the TLSM knowledge base expanded, aramid rope construction evolved. Earlier efforts to match the characteristics of steel wire rope have given way to new generation soft aramid constructions. This paper compares the mooring performance and total installed cost of a soft aramid TLSM to a typical polyester configuration. Both systems were designed for use in the Gulf of Mexico (GOM) with an FPS based on the Aker P45.

  17. Stability based design of two-point mooring systems with hydrodynamic memory

    SciTech Connect

    Chung, J.S.

    1996-12-31

    A systematic method of determining the design parameter values of Two-Point Mooring (TPM) systems is presented. The conclusions of nonlinear stability analysis of horizontal plane slow motion dynamics of TPM systems with hydrodynamic memory are used to guide selection of the design variables. Specifically, within the stable regions of bifurcation diagram, a set of parameter values is chosen systematically to examine the corresponding TPM system. Then, each TPM system is simulated and the results are evaluated in terms of given criteria such as tension level of the mooring line or offset of the moored vessel. The hydrodynamic memory effect due to the oscillatory motions of moored vessel is included in the formulation. The memory effect influences the stability properties of TPM systems and alters the design chart/bifurcation diagram and particularly the static loss and dynamic loss of stability. The significance of hydrodynamic memory on several TPM systems is illustrated by comparing the statistics of the simulations. The design approach implemented in this work shows that nonlinear stability theory can be used effectively in the actual design process of mooring systems to reduce dramatically the number of simulations required. It is also shown that, the often inconclusive nonlinear time simulations can be guided by theoretical nonlinear stability analysis of system dynamics to produce improved design values of system parameters of TPM systems.

  18. Stability-based design of two-point mooring systems with hydrodynamic memory

    SciTech Connect

    Chung, J.S.

    1997-02-01

    A systematic method of determining the design parameter values of two-point mooring (TPM) systems is presented. The conclusions of nonlinear stability analysis of horizontal plane slow motion dynamics of TPM systems with hydrodynamic memory are used to guide selection of the design variables. Specifically, within the stable regions of bifurcation diagram, a set of parameter values is chosen systematically to examine the corresponding TPM system. Then, each TPM system is simulated and the results are evaluated in terms of given criteria such as tension level of the mooring line or offset of the moored vessel. The hydrodynamic memory effect due to the oscillatory motions of moored vessel is included in the formulation. The memory effect influences the stability properties of TPM systems and alters the design chart/bifurcation diagram and particularly the static loss and dynamic loss of stability. The significance of hydrodynamic memory on several TPM systems is illustrated by comparing the statistics of the simulations. The design approach implemented in this work shows that nonlinear stability theory can be used effectively in the actual design process of mooring systems to reduce dramatically the number of simulations required. It is also shown that the often inconclusive nonlinear time simulations can be guided by theoretical nonlinear stability analysis of system dynamics to produce improved design values of system parameters of TPM systems.

  19. Ocean Thermal Energy Conversion moored pipe/mobile platform design study

    SciTech Connect

    Bullock, H.O.; McNatt, T.R.; Ross, J.M.; Stambaugh, K.A.; Watts, J.L.

    1982-07-30

    The Ocean Thermal Energy Conversion (OTEC) Moored Pipe/Mobile Platform (MP-Squared) Design Study was carried out to investigate an innovative approach to the moored floating OTEC plant. In the past, a number of concepts have been examined by NOAA for floating OTEC plants. These concepts have considered various configurations for platforms, cold water pipes and mooring systems. In most cases the cold water pipe (CWP) was permanently attached to the platform and the platform was permanently moored on station. Even though CWP concepts incorporating articulated joints or flexible pipes were used, the CWP stresses induced by platform motion were frequently excessive and beyond the design limits of the CWP. This was especially true in the survival (100-year storm) case. It may be feasible that the concept of a permanently moored CWP attached through a flexible transition CWP to the platform could reduce the degree of technical risk by de-coupling the CWP from the motions of the platform. In addition, if the platform is capable of disconnecting from the CWP during survival conditions, even less technical risk may be inherent in the OTEC system. The MP-Squared Design Study was an engineering evaluation of the concepts described above. The effort has been carried through to the conceptual design level, and culminated in model tests in an experimental wave basin.

  20. Near-surface salinity and stratification in the north Bay of Bengal from moored observations

    NASA Astrophysics Data System (ADS)

    Sengupta, Debasis; Bharath Raj, G. N.; Ravichandran, M.; Sree Lekha, J.; Papa, Fabrice

    2016-05-01

    A thin layer of fresh water from summer monsoon rain and river runoff in the Bay of Bengal (BoB) has profound influence on air-sea interaction across the south Asian region, but the mechanisms that sustain the low-salinity layer are as yet unknown. Using the first long time series of high-frequency observations from a mooring in the north BoB and satellite salinity data, we show that fresh water from major rivers is transported by large-scale flow and eddies, and shallow salinity stratification persists from summer through the following winter. The moored observations show frequent 0.2-1.2 psu salinity jumps with time scales of 10 min to days, due to O(1-10) km submesoscale salinity fronts moving past the mooring. In winter, satellite sea surface temperature shows 10 km wide filaments of cool water, in line with moored data. Rapid salinity and temperature changes at the mooring are highly coherent, suggesting slumping of salinity-dominated fronts. Based on these observations, we propose that submesoscale fronts may be one of the important drivers for the persistent fresh layer in the north BoB.

  1. Investigation on the dynamic responses of a truss spar platform for different mooring line groups

    NASA Astrophysics Data System (ADS)

    Ahmed, Montasir Osman; Yenduri, Anurag; Kurian, V. J.

    2015-06-01

    The dynamic responses of any floating platform are dependent on the mass, stiffness and damping characteristics of the body as well as mooring system. Therefore, it is very essential to study the effect of individual contributions to the system that can finally help to economise their cost. This paper focuses on the effect of mooring stiffness on the responses of a truss spar platform, obtained by different grouping of lines. The study is part of our present researches on mooring systems which include the effect of line pretension, diameter and azimuth angles. The platform is modelled as a rigid body with three degrees-of-freedom and its motions are analyzed in time-domain using the implicit Newmark Beta technique. The mooring lines restoring force-excursion relationship is evaluated using a quasi-static approach. It is observed that the mooring system with lines arranged in less number of groups exhibits better performance in terms of the restoring forces as well as mean position of platform. However, the dynamic motions of platform remain unaffected for different line groups.

  2. Implementation of Distributed Services for a Deep Sea Moored Instrument Network

    NASA Astrophysics Data System (ADS)

    Oreilly, T. C.; Headley, K. L.; Risi, M.; Davis, D.; Edgington, D. R.; Salamy, K. A.; Chaffey, M.

    2004-12-01

    The Monterey Ocean Observing System (MOOS) is a moored observatory network consisting of interconnected instrument nodes on the sea surface, midwater, and deep sea floor. We describe Software Infrastructure and Applications for MOOS ("SIAM"), which implement the management, control, and data acquisition infrastructure for the moored observatory. Links in the MOOS network include fiber-optic and 10-BaseT copper connections between the at-sea nodes. A Globalstar satellite transceiver or 900 MHz Freewave terrestrial line-of-sight RF modem provides the link to shore. All of these links support Internet protocols, providing TCP/IP connectivity throughout a system that extends from shore to sensor nodes at the air-sea interface, through the oceanic water column to a benthic network of sensor nodes extending across the deep sea floor. Exploiting this TCP/IP infrastructure as well as capabilities provided by MBARI's MOOS mooring controller, we use powerful Internet software technologies to implement a distributed management, control and data acquisition system for the moored observatory. The system design meets the demanding functional requirements specified for MOOS. Nodes and their instruments are represented by Java RMI "services" having well defined software interfaces. Clients anywhere on the network can interact with any node or instrument through its corresponding service. A client may be on the same node as the service, may be on another node, or may reside on shore. Clients may be human, e.g. when a scientist on shore accesses a deployed instrument in real-time through a user interface. Clients may also be software components that interact autonomously with instruments and nodes, e.g. for purposes such as system resource management or autonomous detection and response to scientifically interesting events. All electrical power to the moored network is provided by solar and wind energy, and the RF shore-to-mooring links are intermittent and relatively low

  3. Risk assessment on a pipeline passing through a ship mooring area

    NASA Astrophysics Data System (ADS)

    Yan, Shu-wang; Huo, Zhi-liang; Sun, Li-qiang; Liu, Run

    2014-04-01

    It is very common that a submarine pipeline has to pass through a ship mooring area near a harbor zone in the Bohai Bay, China. The risk assessment of accidental events induced by the potential anchoring ships is carried out, which will lead to external interference with the pipeline. A procedure to calculate the probability for the anchoring activity in the ship mooring area to damage the underlying pipeline is proposed. The adopted methodology is based on the recommendations suggested by the DNV Codes. The same philosophy is also applied to estimate the damage probability that is concerned with sinking ships.

  4. 33 CFR 149.575 - How must objects protruding from the water, other than platforms and single point moorings, be...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false How must objects protruding from... objects protruding from the water, other than platforms and single point moorings, be marked? (a) Each object protruding from the water that is within 100 yards of a platform or single point mooring...

  5. 33 CFR 165.804 - Snake Island, Texas City, Texas; mooring and fleeting of vessels-safety zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...; mooring and fleeting of vessels-safety zone. 165.804 Section 165.804 Navigation and Navigable Waters COAST... Guard District § 165.804 Snake Island, Texas City, Texas; mooring and fleeting of vessels—safety zone... in case of an emergency. (c) Barges are prohibited from fleeting or grounding in the zone. (d) In...

  6. 33 CFR 149.575 - How must objects protruding from the water, other than platforms and single point moorings, be...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the water, other than platforms and single point moorings, be marked? 149.575 Section 149.575 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS... objects protruding from the water, other than platforms and single point moorings, be marked? (a)...

  7. EDITORIAL: Moore and more progress in electronics and photonics Moore and more progress in electronics and photonics

    NASA Astrophysics Data System (ADS)

    Meyyappan, Meyya

    2009-10-01

    parts. The field of optoelectronics and photonics has been benefiting from the ability to synthesize semiconducting nanowires and quantum dots. Advances in light-emitting diodes, photodetectors, nanolasers, solar cells, and field emission devices have been abundantly reported in the journal. The future of these devices depends on our ability to control the size, orientation and properties of one- and zero-dimensional materials. The forecast for electronics and photonics has vastly underestimated developments, with predictions such as 'future computers will weigh no less than 1.5 tons'. Over the past twenty years, the number of transistors on a chip has risen from just 1 million to 2 billion, and is still increasing. Now the biggest question is: what will take over from Moore's law in about a decade? This question has been driving the research agenda in electronics across the industrial and academic world. The first answer appears to be integrating other functional components with logic and memory such as miniature camera modules, GPS, accelerometers, biometric identification, health monitoring systems, etc. Such integration is actively being pursued by industry. In contrast, a lot of new research is still driven by material innovations, for example, carbon nanotube based electronics. Rudimentary devices and circuits using SWCNTs have been demonstrated to outperform silicon devices of comparable size. However, controlling the chirality and diameter of SWCNTs is still a problem, as is the manufacture of 300-400 mm wafers with over 5-10 billion transistors, and all of this assumes that continuing on the path of CMOS but using a different material is the right approach in the first place. In the meantime, silicon and germanium in the form of nanowires may make their way into electronics. Then there is molecular electronics where conducting organic molecules could now become the heart of electronic components, although the precision and controllability of electrical contact

  8. 33 CFR 165.751 - Security Zone: LNG mooring slip, Savannah River, Savannah, Georgia.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... dolphin located at approximately 32 05.01′ North, 080 59.38′ West, to the southeastern most mooring dolphin located at approximately 32 04.79′ North, 080 59.35′ West, and continues west along the North...

  9. 33 CFR 165.751 - Security Zone: LNG mooring slip, Savannah River, Savannah, Georgia.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... dolphin located at approximately 32 05.01′ North, 080 59.38′ West, to the southeastern most mooring dolphin located at approximately 32 04.79′ North, 080 59.35′ West, and continues west along the North...

  10. 33 CFR 165.751 - Security Zone: LNG mooring slip, Savannah River, Savannah, Georgia.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... dolphin located at approximately 32 05.01′ North, 080 59.38′ West, to the southeastern most mooring dolphin located at approximately 32 04.79′ North, 080 59.35′ West, and continues west along the North...

  11. 33 CFR 165.751 - Security Zone: LNG mooring slip, Savannah River, Savannah, Georgia.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... dolphin located at approximately 32 05.01′ North, 080 59.38′ West, to the southeastern most mooring dolphin located at approximately 32 04.79′ North, 080 59.35′ West, and continues west along the North...

  12. 33 CFR 165.751 - Security Zone: LNG mooring slip, Savannah River, Savannah, Georgia.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... dolphin located at approximately 32 05.01′ North, 080 59.38′ West, to the southeastern most mooring dolphin located at approximately 32 04.79′ North, 080 59.35′ West, and continues west along the North...

  13. Facility No. S362, view up the ramp. Note the mooring ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Facility No. S362, view up the ramp. Note the mooring cleat on the top edge of the curb at the right - U.S. Naval Base, Pearl Harbor, Seaplane Ramps - World War II Type, Southwest and west shore of Ford Island, near Wasp Boulevard, Pearl City, Honolulu County, HI

  14. Governor Moore Discusses Past and Present Changes in the Region and in West Virginia.

    ERIC Educational Resources Information Center

    Appalachia, 1986

    1986-01-01

    West Virginia Governor Arch Moore discusses past and present changes in the Appalachian Region and in West Virginia spurred by the Appalachian Regional Commission. Changes in West Virginia's tax structure, job creation, economic diversification, and public energy facilities are noted as efforts to prepare for the future. (NEC)

  15. Bessie the Builder, Queen Bessie: Profile of Bessie Boehm Moore, 1984.

    ERIC Educational Resources Information Center

    Bell, David; Reed, Stan

    Dr. Bessie Boehm Moore has been a major contributor to library advancement and economics education in Arkansas and throughout the United States. She began her career as a first grade teacher at the age of 14. As one of the first county supervisors in Arkansas, she became alarmed at the paucity of library materials available for student use and…

  16. Phenology and Population Radiation of the Nettle Caterpillar, Darna pallivitta (Moore) in Hawai'i

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The nettle caterpillar, Darna pallivitta (Moore) (Lepidoptera: Limacodidae), is an invasive pest with established populations on three Hawai’ian islands. Indigenous to southeast Asia, D. pallivitta caterpillars cause defoliation of ornamental nursery stock and poses a human health hazard due to the...

  17. LIFE HISTORY AND DISTRIBUTION OF THE LEECH OLIGOBDELLA BIANNULATA (MOORE, 1900) (EUHIRUDINEA: GLOSSIPHONNIDAE)

    EPA Science Inventory

    Oligobdella biannulata (Moore, 1900) is a rare, endemic leech species originally described from a mountain stream near Blowing Rock, North Carolina. Specimens of O. biannulata were collected seasonally from Fall 1999, to Summer 2002, with new county records in North Carolina and ...

  18. 33 CFR 401.12 - Minimum requirements-mooring lines and fairleads.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Minimum requirements-mooring lines and fairleads. 401.12 Section 401.12 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Condition of Vessels § 401.12 Minimum...

  19. Numerical Modeling of a Spherical Buoy Moored by a Cable in Three Dimensions

    NASA Astrophysics Data System (ADS)

    Zhu, Xiangqian; Yoo, Wan-Suk

    2016-04-01

    Floating facilities have been studied based on the static analysis of mooring cables over the past decades. To analyze the floating system of a spherical buoy moored by a cable with a higher accuracy than before, the dynamics of the cables are considered in the construction of the numerical modeling. The cable modeling is established based on a new element frame through which the hydrodynamic loads are expressed efficiently. The accuracy of the cable modeling is verified with an experiment that is conducted by a catenary chain moving in a water tank. In addition, the modeling of a spherical buoy is established with respect to a spherical coordinate in three dimensions, which can suffers the gravity, the variable buoyancy and Froude-Krylov loads. Finally, the numerical modeling for the system of a spherical buoy moored by a cable is established, and a virtual simulation is proceeded with the X- and Y-directional linear waves and the X-directional current. The comparison with the commercial simulation code ProteusDS indicates that the system is accurately analyzed by the numerical modeling. The tensions within the cable, the motions of the system, and the relationship between the motions and waves are illustrated according to the defined sea state. The dynamics of the cables should be considered in analyzing the floating system of a spherical buoy moored by a cable.

  20. Most-Perfect Pandiagonal Magic Squares and Their Moore-Penrose Inverse

    ERIC Educational Resources Information Center

    Trenkler, Dietrich; Trenkler, Gotz

    2004-01-01

    In this note 4 x 4 most-perfect pandiagonal magic squares are considered in which rows, columns and the two main, along with the broken, diagonals add up to the same sum. It is shown that the Moore-Penrose inverse of these squares has the same magic property.

  1. The Impact of a Modified Moore Method on Efficacy and Performance in Precalculus

    ERIC Educational Resources Information Center

    Cooper, Thomas E.; Bailey, Brad; Briggs, Karen

    2012-01-01

    In this study, one section of undergraduate Precalculus was taught using a modified Moore method, a student centered inquiry-based approach, and two control sections were taught in a traditional lecture format. A survey of attitudes, beliefs, and efficacy toward mathematics and Precalculus was administered at the beginning and end of the semester…

  2. The Effect of a Modified Moore Method on Attitudes and Beliefs in Precalculus

    ERIC Educational Resources Information Center

    Bailey, Brad; Cooper, Thomas E.; Briggs, Karen S.

    2012-01-01

    As part of a study on the effects of teaching with a Modified Moore Method (MMM), a survey containing 20 items from Schoenfeld's (1989) investigation of attitudes and beliefs about mathematics was administered to students in undergraduate precalculus classes. The study included one section of precalculus taught with an MMM, a student-centered and…

  3. Mathematical Understanding and Proving Abilities: Experiment with Undergraduate Student by Using Modified Moore Learning Approach

    ERIC Educational Resources Information Center

    Maya, Rippi; Sumarmo, Utari

    2011-01-01

    This paper reports findings of a post test experimental control group design conducted to investigate the role of modified Moore learning approach on improving students' mathematical understanding and proving abilities. Subjects of study were 56 undergraduate students of one state university in Bandung, who took advanced abstract algebra course.…

  4. 33 CFR 401.39 - Preparing mooring lines for passing through.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Preparing mooring lines for passing through. 401.39 Section 401.39 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation §...

  5. 75 FR 52780 - Notice of Availability of Final Supplemental Environmental Impact Statement for the Moore Ranch...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-27

    ....gov/reading-rm/doc-collections/nuregs/staff/sr1910/s1/ . Additionally, the NRC maintains an Agencywide.... The SEIS may also be accessed through the NRC's Public Electronic Reading Room on the internet at: http://www.nrc.gov/reading-rm/adams.html . The ``Environmental Impact Statement for the Moore Ranch...

  6. Humor and Film in the Geography Classroom: Learning from Michael Moore's "TV Nation"

    ERIC Educational Resources Information Center

    Alderman, Derek H.; Popke, E. Jeffrey

    2002-01-01

    How can teachers use humor and film to convert geography classrooms into public spaces for thinking and talking about the world in a critical way? One useful resource for raising student consciousness and critical discussion is "TV Nation"-a satirical television newsmagazine show created, produced, and hosted by rebel-filmmaker Michael Moore in…

  7. 75 FR 38019 - Safety Zone; Fixed Mooring Balls, South of Barbers Pt. Harbor Channel, Oahu, HI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Fixed Mooring Balls, South of Barbers Pt. Harbor Channel, Oahu, HI AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: Due to...

  8. Inquiry Based Learning: A Modified Moore Method Approach To Encourage Student Research

    ERIC Educational Resources Information Center

    McLoughlin, M. Padraig M. M.

    2008-01-01

    The author of this paper submits that a mathematics student needs to learn to conjecture and prove or disprove said conjecture. Ergo, the purpose of the paper is to submit the thesis that learning requires doing; only through inquiry is learning achieved, and hence this paper proposes a programme of use of a modified Moore method (MMM) across the…

  9. Numerical modeling of a spherical buoy moored by a cable in three dimensions

    NASA Astrophysics Data System (ADS)

    Zhu, Xiangqian; Yoo, Wan-Suk

    2016-05-01

    Floating facilities have been studied based on the static analysis of mooring cables over the past decades. To analyze the floating system of a spherical buoy moored by a cable with a higher accuracy than before, the dynamics of the cables are considered in the construction of the numerical modeling. The cable modeling is established based on a new element frame through which the hydrodynamic loads are expressed efficiently. The accuracy of the cable modeling is verified with an experiment that is conducted by a catenary chain moving in a water tank. In addition, the modeling of a spherical buoy is established with respect to a spherical coordinate in three dimensions, which can suffers the gravity, the variable buoyancy and Froude-Krylov loads. Finally, the numerical modeling for the system of a spherical buoy moored by a cable is established, and a virtual simulation is proceeded with the X- and Y-directional linear waves and the X-directional current. The comparison with the commercial simulation code ProteusDS indicates that the system is accurately analyzed by the numerical modeling. The tensions within the cable, the motions of the system, and the relationship between the motions and waves are illustrated according to the defined sea state. The dynamics of the cables should be considered in analyzing the floating system of a spherical buoy moored by a cable.

  10. ANATOMY, LIFE HISTORY AND DISTRIBUTION OF THE PARASITIC LEECH OLIGOBDELLA BIANNULATA (MOORE, 1900) (EUHIRUDINEA: GLOSSIPHONIIDAE)

    EPA Science Inventory

    Oligobdella biannulata (Moore, 1900) is a rare, endemic species originally described from a mountain stream near Blowing Rock, North Carolina. Specimens of this species were collected seasonally from fall 1999 to winter 2001 with four new county records in North Carolina (Avery,...

  11. Phenology and Population Radiation of the Nettle Caterpillar, Darna pallivitta (Moore) in Hawai'i.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The nettle caterpillar, Darna pallivitta (Moore) (Lepidoptera: Limacodidae), is an invasive pest with established populations on three Hawai’ian islands. Indigenous to southeast Asia, D. pallivitta caterpillars cause defoliation of ornamental nursery stock and poses a human health hazard due to the...

  12. The Pacific and Indian Ocean Exchange: Analysis of the Imos Timor Passage and Ombai Strait Moorings

    NASA Astrophysics Data System (ADS)

    Sloyan, B.; Wijffels, S. A.; Cowley, R.

    2014-12-01

    A fundamental aspect of observing, describing, understanding and modeling the global climate and particularly the Maritime Continent, is a better knowledge of the fluxes of momentum, heat and freshwater in the ocean. The Indonesian seas are the only major low-latitude connection in the global oceans. This connection permits the transfer of Pacific waters into the Indian Ocean, known as the Indonesian Throughflow. The interaction of the Pacific and Indian basins and their modes of variability (El Niño-Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD)), both through atmospheric teleconnections and the ocean link via the Indonesian Throughflow, is now being hotly pursued in the research community. We will present some initial findings from the 3-year time series (2011-2014) of the Timor Passage and Ombai Strait moorings. This mooring array is a component of the Australian Integrated Marine Observing System (IMOS), and builds on the earlier results of the INSTANT (2003-2006) observational program. The moorings comprise of velocity, temperature and salinity instruments. Observations from these moorings provide the required spatial and temporal coverage to understand ocean dynamics, the ocean's role in climate variability and change, investigate forcing of the atmosphere and ocean and assess the realism of data-assimilative ocean models and coupled ocean-atmosphere models.

  13. Hydrostatic Mooring System. Final Technical Report: Main Report plus Appendices A, B, and C - Volume 1 and 2

    SciTech Connect

    Jens Korsgaard

    2000-08-08

    The main conclusions from the work carried out under this contract are: An ordinary seafarer can learn by training on a simulator, to moor large tanker vessels to the Hydrostatic Mooring, safely and quickly, in all weather conditions up to storms generating waves with a significant wave height of 8 m. Complete conceptual design of the Hydrostatic Mooring buoy was carried out which proved that the buoy could be constructed entirely from commercially available standard components and materials. The design is robust, and damage resistant. The mooring tests had a 100% success rate from the point of view of the buoy being securely attached and moored to the vessel following every mooring attempt. The tests had an 80% success rate from the point of view of the buoy being adequately centered such that petroleum transfer equipment on the vessel could be attached to the corresponding equipment on the buoy. The results given in Table 3-2 of the mooring tests show a consistently improving performance from test to test by the Captain that performed the mooring operations. This is not surprising, in view of the fact that the Captain had only three days of training on the simulator prior to conducting the tests, that the maneuvering required is non-standard, and the test program itself lasted four days. One conclusion of the test performance is that the Captain was not fully trained at the initiation of the test. It may therefore be concluded that a thoroughly trained navigator would probably be able to make the mooring such that the fluid transfer equipment can be connected with reliability in excess of 90%. Considering that the typical standard buoy has enough power aboard to make eight mooring attempts, this implies that the probability that the mooring attempt should fail because of the inability to connect the fluid transfer equipment is of the order of 10{sup {minus}8}. It may therefore be concluded that the mooring operation between a Hydrostatic Mooring and a large

  14. Numerical Modeling of Compliant-Moored System Dynamics with Applications to Marine Energy Converters

    NASA Astrophysics Data System (ADS)

    Nichol, Tyler

    The development of a numerical model simulating the dynamic response of compliant-moored submerged systems to non-uniform fluid flow is presented. The model is meant to serve as a computational tool with applications to compliant-moored marine energy converters by time-domain representation of the mooring dynamics. The scope of the initial code is restricted to full-submerged moored tidal turbines, though the model can be readily expanded to analyze wave energy converters as well. The system is modeled in a Lagrangian frame treating tidal turbines and structural elements as rigid bodies. Mooring lines are modeled as a series of discrete elastic segments, with parameters and force contributions lumped to point-mass nodes joining each segment. Full-range of motion is achieved using the alpha-beta-gamma Euler Angle method. The governing equations of motion of the system are derived computationally through implementation of Lagrange's Equation of Motion. The techniques employed to develop the symbolic expressions for the total kinetic, potential, and damping energies of the system and the forces acting on each element of the system are discussed. The system of differential equations obtained from evaluation of Lagrange's Equation with the developed symbolic expressions is solved numerically using a built-in MATLAB ordinary differential equation solver called ODE15i.m with the user defined initial condition of the system. Several validation tests are presented and their results discussed. Finally, an explanation of future plans for development of the model and application to existing tidal energy systems are presented.

  15. An investigation on low frequency fatigue damage of mooring lines applied in a semi-submersible platform

    NASA Astrophysics Data System (ADS)

    Du, Junfeng; Wang, Shuqing; Chang, Anteng; Li, Huajun

    2016-06-01

    Assessing the fatigue life of mooring systems is important for deep water structures. In this paper, a comprehensive fatigue analysis is conducted on the mooring lines applied in a semi-submersible platform with special focus on the low frequency (LF) fatigue damage. Several influential factors, including water depth, wave spectral parameters, and riser system, are considered. Numerical simulation of a semi-submersible platform with the mooring/riser system is executed under different conditions, and the fatigue damage of mooring lines is assessed by using the time domain analysis method as a benchmark. The effects of these factors on the mooring line tension and the fatigue damage are investigated and discussed in detail. Research results indicate that the LF fatigue damage only accounts for a very small portion of the total damage, although the LF components dominate the global motion response and the mooring line tension of the semi-submersible platform. However, it is demonstrated that the LF fatigue damage is clearly affected by the influential factors. The increase in water depth and spectral peak periods, and the existence of risers can weaken the contribution of the LF components to the mooring line fatigue damage, while the fatigue damage due to the LF components increases with the increase of significant wave height.

  16. Carbon isotopes and lignin composition of POC in a small river in Bekanbeushi Moor, northern Japan

    NASA Astrophysics Data System (ADS)

    Nagao, Seiya; Aramaki, Takafumi; Seki, Osamu; Uchida, Masao; Shibata, Yasuyuki

    2010-04-01

    Carbon isotope and lignin phenol compositions were investigated to assess particulate organic carbon (POC) in a small river from the Bekanbeushi Moor in the eastern part of Hokkaido, Japan. Suspended solids were collected 5 times at a fixed station during July 2004-April 2008. The δ 13C values of the riverine POC are almost constant: -29.1‰ to -28.7‰. In contrast, the POC shows wide variations in Δ 14C values from -103‰ during the snowmelt event to +9 ± 16‰ during summer and winter. The cinnamyl over vanillyl phenol ( C/ V) ratios indicate a predominance of nonwoody materials and no seasonal variation, suggesting that the wetland river transports older POC from the riverbank during the spring snowmelt. The river also transports newly produced and stored soil organic matter as riverine POC from the low moor in times of low flow conditions.

  17. Verifying the interactive convergence clock synchronization algorithm using the Boyer-Moore theorem prover

    NASA Technical Reports Server (NTRS)

    Young, William D.

    1992-01-01

    The application of formal methods to the analysis of computing systems promises to provide higher and higher levels of assurance as the sophistication of our tools and techniques increases. Improvements in tools and techniques come about as we pit the current state of the art against new and challenging problems. A promising area for the application of formal methods is in real-time and distributed computing. Some of the algorithms in this area are both subtle and important. In response to this challenge and as part of an ongoing attempt to verify an implementation of the Interactive Convergence Clock Synchronization Algorithm (ICCSA), we decided to undertake a proof of the correctness of the algorithm using the Boyer-Moore theorem prover. This paper describes our approach to proving the ICCSA using the Boyer-Moore prover.

  18. Evaluation of a low-cost and accurate ocean temperature logger on subsurface mooring systems

    SciTech Connect

    Tian, Chuan; Deng, Zhiqun; Lu, Jun; Xu, Xiaoyang; Zhao, Wei; Xu, Ming

    2014-06-23

    Monitoring seawater temperature is important to understanding evolving ocean processes. To monitor internal waves or ocean mixing, a large number of temperature loggers are typically mounted on subsurface mooring systems to obtain high-resolution temperature data at different water depths. In this study, we redesigned and evaluated a compact, low-cost, self-contained, high-resolution and high-accuracy ocean temperature logger, TC-1121. The newly designed TC-1121 loggers are smaller, more robust, and their sampling intervals can be automatically changed by indicated events. They have been widely used in many mooring systems to study internal wave and ocean mixing. The logger’s fundamental design, noise analysis, calibration, drift test, and a long-term sea trial are discussed in this paper.

  19. Current meter data report, September 1980 - December 1980: mooring OTEC-HB

    SciTech Connect

    Roman, T M; Wang, D P

    1981-03-01

    Data tapes contained current meter records from instrumented mooring OTEC-HB near the OTEC-1 site approximately 14 nautical miles northwest of Keahole Point, Island of Hawaii. Deployed in 1345 m of water, the mooring had five Aanderaa RCM-5 current meters, one at each of the following depths: 47 m, 70m, 99m, 154m, and 829 m. Raw data consisted of east-west (U) velocity, north-south (V) velocity, temperature (T), and pressure (P) time series from September 23, 1980, through December 20, 1980, with a recording interval of 15 min. The series (U, V, T) were filtered into various frequency domains, thereby removing very high frequencies and separating tidal oscillations from very low frequencies. Spectral analyses were performed on the nontidal U and V time series.

  20. The 3D Moore-Rayleigh test for the quantitative groupwise comparison of MR brain images.

    PubMed

    Scheenstra, Alize E H; Muskulus, Michael; Staring, Marius; van den Maagdenberg, Arn M J V; Lunel, Sjoerd Verduyn; Reiber, J Hans C; van der Weerd, Louise; Dijkstra, Jouke

    2009-01-01

    Non-rigid registration of MR images to a common reference image results in deformation fields, from which anatomical differences can be statistically assessed, within and between populations. Without further assumptions, nonparametric tests are required and currently the analysis of deformation fields is performed by permutation tests. For deformation fields, often the vector magnitude is chosen as test statistic, resulting in a loss of information. In this paper, we consider the three dimensional Moore-Rayleigh test as an alternative for permutation tests. This nonparametric test offers two novel features: first, it incorporates both the directions and magnitude of the deformation vectors. Second, as its distribution function is available in closed form, this test statistic can be used in a clinical setting. Using synthetic data that represents variations as commonly encountered in clinical data, we show that the Moore-Rayleigh test outperforms the classical permutation test. PMID:19694294

  1. Moore's law and the impact on trusted and radiation-hardened microelectronics.

    SciTech Connect

    Ma, Kwok Kee

    2011-12-01

    In 1965 Gordon Moore wrote an article claiming that integrated circuit density would scale exponentially. His prediction has remained valid for more than four decades. Integrated circuits have changed all aspects of everyday life. They are also the 'heart and soul' of modern systems for defense, national infrastructure, and intelligence applications. The United States government needs an assured and trusted microelectronics supply for military systems. However, migration of microelectronics design and manufacturing from the United States to other countries in recent years has placed the supply of trusted microelectronics in jeopardy. Prevailing wisdom dictates that it is necessary to use microelectronics fabricated in a state-of-the-art technology for highest performance and military system superiority. Close examination of silicon microelectronics technology evolution and Moore's Law reveals that this prevailing wisdom is not necessarily true. This presents the US government the possibility of a totally new approach to acquire trusted microelectronics.

  2. Wave transmission and mooring-force characteristics of pipe-tire floating breakwaters

    SciTech Connect

    Harms, Volker W.; Westerink, Joannes J.

    1980-10-01

    The results are presented of a series of prototype scale tests of a floating breakwater that incorporates massive cylindrical members (steel or concrete pipes, telephone poles, etc.) in a matrix of scrap truck or automobile tires, referred to as the Pipe-Tire Breakwater (PT-Breakwater). Tests were conducted in the large wave tank at the US Army Coastal Engineering Research Center (CERC). Breakwater modules were preassembled at SUNY in Buffalo, New York, and then transported to CERC by truck, where final assembly on location was again performed by SUNY personnel. Wave-tank tests were conducted jointly by CERC and SUNY personnel. A series of wave-tank experiments and mooring system load-deflection tests were performed, and are described. Wave-transmission and mooring-load characteristics, based on 402 separate tests, were established and are reported. (LCL)

  3. Mooring design to minimize savonius rotor overspeeding due to wave action

    NASA Astrophysics Data System (ADS)

    Griffin, David A.

    1988-02-01

    A theoretical formula providing an estimate of the surface wave induced overspeeding of non-vector-averaging recording current meters is derived for shallow water (continental shelf) single meter moorings having subsurface buoyancy directly above the meter. It is shown that the common practice of placing meters close to the bottom in an attempt to escape wave action can result in greater overspeeding, even though the wave induced currents are weaker at depth. In cases where a variety of meters are available to be used at various depths, it is therefore recommended that the newer vector-averaging meters be used near the bottom as well as near the surface, with non-vector-averaging meters being used only at mid-depth on moorings whose uppermost buoyancy is also at mid-depth.

  4. Objective measures of laryngeal imaging: what have we learned since Dr. Paul Moore.

    PubMed

    Woo, Peak

    2014-01-01

    Dr. Paul Moore pioneered the use of high-speed cinematography for observation of normal and abnormal vocal fold vibrations during phonation. His analysis of the glottal area waveform, opening and closing speed index, and open quotient from the high-speed films were labor intensive but relevant today. With advances in digital image capture and automated image extraction techniques, stroboscopy and high-speed images of vocal fold vibration may be analyzed with objective measures. Digital high-speed image capture in color is now clinically practical at high resolution. Digital kymography now allows analysis of the vibratory waveform from each vocal fold. Serial capture and comparison can document changes in vibratory function with treatment. Quantification of vocal fold vibration using such techniques is now practical. This is a review of vocal fold vibration capture and analysis techniques since Dr. Moore. PMID:24094798

  5. 33 CFR 149.575 - How must objects protruding from the water, other than platforms and single point moorings, be...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... object protruding from the water that is within 100 yards of a platform or single point mooring (SPM... 100 yards from a platform or SPM must meet the obstruction lighting requirements in this subpart for...

  6. 33 CFR 165.T14-204 - Safety Zone; fixed mooring balls, south of Barbers Pt Harbor Channel, Oahu, Hawaii.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... with the general regulations in 33 CFR part 165, Subpart C, no person or vessel may enter or remain in... mooring balls will be placed 133 yards (121 meters) in a circular design for preapproved vessel...

  7. Oscillation Responses to an Extreme Weather Event from a Deep Moored Observing System

    NASA Astrophysics Data System (ADS)

    Wang, Z.; Dimarco, S. F.; Stoessel, M. M.; Zhang, X.; Ingle, S.

    2011-12-01

    In June 2007 tropical Cyclone Gonu passed directly over an ocean observing system consisting of four, deep autonomous mooring stations along the 3000 m isobath in the northern Arabian Sea. Gonu was the largest cyclone known to have occurred in the Arabian Sea or to strike the Arabian Peninsula. The mooring system was designed by Lighthouse R & D Enterprises, Inc. and installed in cooperation with the Oman Ministry of Agriculture and Fisheries Wealth. The instruments on the moorings continuously recorded water velocities, temperature, conductivity, pressure, dissolved oxygen and turbidity at multiple depths and at hourly intervals during the storm. Near-inertial oscillations at all moorings from thermocline to seafloor are coincident with the arrival of Gonu. Sub-inertial oscillations with periods of 2-10 days are recorded at the post-storm relaxation stage of Gonu, primarily in the thermocline. These oscillations consist of warm, saline water masses, likely originating from the Persian Gulf. Prominent 12.7-day sub-inertial waves, measured at a station ~300 km offshore, are bottom-intensified and have characteristics of baroclinic, topographically-trapped waves. Theoretical results from a topographically-trapped wave model are in a good agreement with the observed 12.7-day waves. The wavelength of the 12.7-day waves is about 590 km calculated from the dispersion relationship. Further analysis suggests that a resonant standing wave is responsible for trapping the 12.7-day wave energy inside the Sea of Oman basin. The observational results reported here are the first measurements of deepwater responses to a tropical cyclone in the Sea of Oman/Arabian Sea. Our study demonstrates the utility of sustained monitoring for studying the impact of extreme weather events on the ocean.

  8. An in vitro study of the antimicrobial effects of indigo naturalis prepared from Strobilanthes formosanus Moore.

    PubMed

    Chiang, Yin-Ru; Li, Ann; Leu, Yann-Lii; Fang, Jia-You; Lin, Yin-Ku

    2013-01-01

    Indigo naturalis is effective in treating nail psoriasis coexisting with microorganism infections. This study examines the antimicrobial effects of indigo naturalis prepared from Strobilanthes formosanus Moore. Eight bacterial and seven fungal strains were assayed using the agar diffusion method to examine the effects of indigo naturalis and its bioactive compounds. The bioactive compounds of indigo naturalis were purified sequentially using GFC, TLC, and HPLC. Their structures were identified using mass spectrometry and NMR spectroscopy. UPLC-MS/MS was applied to compare the metabolome profiles of indigo naturalis ethyl-acetate (EA) extract and its source plant, Strobilanthes formosanus Moore. The results of in vitro antimicrobial assays showed that indigo naturalis EA-extract significantly (≥1 mg/disc) inhibits Gram-positive bacteria (Staphylococcus aureus, S. epidermis and methicillin-resistant S. aureus (MRSA)) and mildly inhibits non-dermatophytic onychomycosis pathogens (Aspergillus fumigates and Candida albicans), but has little effect on dermatophyes. Isatin and tryptanthrin were identified as the bioactive compounds of indigo naturalis using S. aureus and S. epidermis as the bioassay model. Both bioactive ingredients had no effect on all tested fungi. In summary, indigo naturalis prepared from Strobilanthes formosanus Moore exhibits antimicrobial effects on Staphylococcus and non-dermatophytic onychomycosis pathogens. Tryptanthrin and isatin may be its major bioactive ingredients against Staphylococcus and the inhibitory effect on MRSA may be due to other unidentified ingredients. PMID:24284490

  9. Phytoplankton production in the Sargasso Sea as determined using optical mooring data

    NASA Technical Reports Server (NTRS)

    Waters, K. J.; Smith, R. C.; Marra, J.

    1994-01-01

    Optical measurements from an untended mooring provide high-frequency observations of in-water optical properties and permit the estimation of important biological parameters continuously as a function of time. A 9-month time series, composed of three separate deployments, of optical data from the BIOWATT 1987 deep-sea mooring located in the oligotrophic waters of the Sargasso Sea at 34 deg N, 70 deg W are presented. These data have been tested using several bio-optical models for the purpose of providing a continuous estimate of phytoplankton productivity. The data are discussed in the context of contemporaneous shipboard observations and for future ocean color satellite observations. We present a continuous estimation of phytoplankton productivity for the 9-month time series. Results from the first 70-day deployment are emphasized to demonstrate the utility of optical observations as proxy measures of biological parameters, to present preliminary analysis, and to compare our bio-optical observations with concurrent physical observations. The bio-optical features show variation in response to physical forcings including diel variations of incident solar irradiance, episodic changes corresponding to wind forcing, variability caused by advective mesoscale eddy events in the vicinity of the mooring, and seasonal variability corresponding to changes in solar radiation, shoaling of the mixed layer depth, and succession of phytoplankton populations.

  10. Fatigue life prediction of mooring chains for a floating tidal current power station

    NASA Astrophysics Data System (ADS)

    Jing, Fengmei; Zhang, Liang; Yang, Zhong

    2012-06-01

    As a kind of clean and renewable energy, tidal current energy is becoming increasingly popular all over the world with the shortage of energy and environmental problems becoming more and more severe. A floating tidal current power station is a typical type of tidal current power transformers which can sustain the loads of wind, waves, and current, and even the extreme situation of a typhoon. Therefore, the mooring system must be reliable enough to keep the station operating normally and to survive in extreme situations. The power station examined in this paper was installed at a depth of 40 m. A 44 mm-diameter R4-RQ4 chain was chosen, with a 2 147 kN minimum break strength and 50 kN pretension. Common studless link chain was used in this paper. Based on the Miner fatigue cumulative damage rule, S-N curves of chains, and MOSES software, a highly reliable mooring system was designed and analyzed. The calculation results show that the mooring system designed is reliable throughout a 10-year period. It can completely meet the design requirements of American Petroleum institution (API). Therefore, the presented research is significant for advancing the design of this kind of power station.

  11. A Robust Self-Alignment Method for Ship's Strapdown INS Under Mooring Conditions

    PubMed Central

    Sun, Feng; Lan, Haiyu; Yu, Chunyang; El-Sheimy, Naser; Zhou, Guangtao; Cao, Tong; Liu, Hang

    2013-01-01

    Strapdown inertial navigation systems (INS) need an alignment process to determine the initial attitude matrix between the body frame and the navigation frame. The conventional alignment process is to compute the initial attitude matrix using the gravity and Earth rotational rate measurements. However, under mooring conditions, the inertial measurement unit (IMU) employed in a ship's strapdown INS often suffers from both the intrinsic sensor noise components and the external disturbance components caused by the motions of the sea waves and wind waves, so a rapid and precise alignment of a ship's strapdown INS without any auxiliary information is hard to achieve. A robust solution is given in this paper to solve this problem. The inertial frame based alignment method is utilized to adapt the mooring condition, most of the periodical low-frequency external disturbance components could be removed by the mathematical integration and averaging characteristic of this method. A novel prefilter named hidden Markov model based Kalman filter (HMM-KF) is proposed to remove the relatively high-frequency error components. Different from the digital filters, the HMM-KF barely cause time-delay problem. The turntable, mooring and sea experiments favorably validate the rapidness and accuracy of the proposed self-alignment method and the good de-noising performance of HMM-KF. PMID:23799492

  12. What is Radical Behaviorism? A Review of Jay Moore's Conceptual Foundations of Radical Behaviorism

    PubMed Central

    Baum, William M

    2011-01-01

    B. F. Skinner founded both radical behaviorism and behavior analysis. His founding innovations included: a versatile preparation for studying behavior; explicating the generic nature of stimulus and response; a pragmatic criterion for defining behavioral units; response rate as a datum; the concept of stimulus control; the concept of verbal behavior; and explicating the explanatory power of contingencies. Besides these achievements, however, Skinner also made some mistakes. Subsequent developments in radical behaviorist thought have attempted to remedy these mistakes. Moore's book presents a “party line” version of radical behaviorism. It focuses narrowly on a few of Skinner's concepts (mostly mentalism and verbal behavior) and contains no criticism of his mistakes. In fact, Moore adds a few mistakes of his own manufacture; for example, he insists that the mental realm does not exist—an unprovable and distracting assertion. The book's portrayal of behavior analysis would have been current around 1960; it mentions almost none of the developments since then. It also includes almost no developments in radical behaviorism since Skinner. Moore's book would give an unwary reader a highly distorted picture of contemporary behavior analysis and radical behaviorism.

  13. Analysis of ecological factors limiting the destruction of high-moor peat

    NASA Astrophysics Data System (ADS)

    Dobrovol'skaya, T. G.; Golovchenko, A. V.; Zvyagintsev, D. G.

    2014-03-01

    This review presents an analysis of literature data and original studies by the authors aimed at revealing the factors inhibiting the destruction of high-moor (oligotrophic) peat. Each of the ecological factors that prevent the decomposition of the high-moor peat by different groups of microorganisms is considered. The acid reaction, low temperatures, and lack of nutrients were found not to be the primary factors inhibiting the destruction of the peat. The limited content of oxygen in the peatbogs leads to a drastic decrease in the number of mycelial microorganisms and a reduction of the activity of hydrolytic and oxidizing enzymes. The main factor inhibiting the decomposition of sphagnum is its mechanical and chemical stability, since animals crushing sphagnum are absent in the soil, and this moss has polysaccharides of special composition. The toxicity of phenol compounds, which is manifested under the aerobic conditions, prevents the activity of all the hydrolytic enzymes. This is the main reason for the slow decomposition of sphagnum peat and the long-term preservation of the residues of bodies and food in high-moor peatlands.

  14. A robust self-alignment method for ship's strapdown INS under mooring conditions.

    PubMed

    Sun, Feng; Lan, Haiyu; Yu, Chunyang; El-Sheimy, Naser; Zhou, Guangtao; Cao, Tong; Liu, Hang

    2013-01-01

    Strapdown inertial navigation systems (INS) need an alignment process to determine the initial attitude matrix between the body frame and the navigation frame. The conventional alignment process is to compute the initial attitude matrix using the gravity and Earth rotational rate measurements. However, under mooring conditions, the inertial measurement unit (IMU) employed in a ship's strapdown INS often suffers from both the intrinsic sensor noise components and the external disturbance components caused by the motions of the sea waves and wind waves, so a rapid and precise alignment of a ship's strapdown INS without any auxiliary information is hard to achieve. A robust solution is given in this paper to solve this problem. The inertial frame based alignment method is utilized to adapt the mooring condition, most of the periodical low-frequency external disturbance components could be removed by the mathematical integration and averaging characteristic of this method. A novel prefilter named hidden Markov model based Kalman filter (HMM-KF) is proposed to remove the relatively high-frequency error components. Different from the digital filters, the HMM-KF barely cause time-delay problem. The turntable, mooring and sea experiments favorably validate the rapidness and accuracy of the proposed self-alignment method and the good de-noising performance of HMM-KF. PMID:23799492

  15. Heat and salinity budgets at the Stratus mooring in the southeast Pacific

    NASA Astrophysics Data System (ADS)

    Holte, James; Straneo, Fiammetta; Farrar, J. Thomas; Weller, Robert A.

    2014-11-01

    The surface layer of the southeast Pacific Ocean (SEP) requires an input of cold, fresh water to balance heat gain, and evaporation from air-sea fluxes. Models typically fail to reproduce the cool sea surface temperatures (SST) of the SEP, limiting our ability to understand the variability of this climatically important region. We estimate the annual heat budget of the SEP for the period 2004-2009, using data from the upper 250 m of the Stratus mooring, located at 85°W 20°S, and from Argo floats. The surface buoy measures meteorological conditions and air-sea fluxes; the mooring line is heavily instrumented, measuring temperature, salinity, and velocity at more than 15 depth levels. We use a new method for estimating the advective component of the heat budget that combines Argo profiles and mooring velocity data, allowing us to calculate monthly profiles of heat advection. Averaged over the 6 year study period, we estimate a cooling advective heat flux of -41 ± 29 W m-2, accomplished by a combination of the mean gyre circulation, Ekman transport, and eddies. This compensates for warming fluxes of 32 ± 4 W m-2 due to air-sea fluxes and 7 ± 9 W m-2 due to vertical mixing and Ekman pumping. A salinity budget exhibits a similar balance, with advection of freshwater (-60 psu m) replenishing the freshwater lost through evaporation (47 psu m) and Ekman pumping (14 psu m).

  16. Combined string searching algorithm based on knuth-morris- pratt and boyer-moore algorithms

    NASA Astrophysics Data System (ADS)

    Tsarev, R. Yu; Chernigovskiy, A. S.; Tsareva, E. A.; Brezitskaya, V. V.; Nikiforov, A. Yu; Smirnov, N. A.

    2016-04-01

    The string searching task can be classified as a classic information processing task. Users either encounter the solution of this task while working with text processors or browsers, employing standard built-in tools, or this task is solved unseen by the users, while they are working with various computer programmes. Nowadays there are many algorithms for solving the string searching problem. The main criterion of these algorithms’ effectiveness is searching speed. The larger the shift of the pattern relative to the string in case of pattern and string characters’ mismatch is, the higher is the algorithm running speed. This article offers a combined algorithm, which has been developed on the basis of well-known Knuth-Morris-Pratt and Boyer-Moore string searching algorithms. These algorithms are based on two different basic principles of pattern matching. Knuth-Morris-Pratt algorithm is based upon forward pattern matching and Boyer-Moore is based upon backward pattern matching. Having united these two algorithms, the combined algorithm allows acquiring the larger shift in case of pattern and string characters’ mismatch. The article provides an example, which illustrates the results of Boyer-Moore and Knuth-Morris- Pratt algorithms and combined algorithm’s work and shows advantage of the latter in solving string searching problem.

  17. Mooring apparatus and method of installation for deep water tension leg platform

    SciTech Connect

    Hunter, A.F.

    1988-11-15

    This patent describes a method of mooring an offshore platform in a body of water having a surface and a floor comprising the steps of: locating anchoring means on the floor of the body of water, the anchoring means adapted for receipt of mooring tendons through a side entry opening therein; stationing a semi-submersible floating structure on the surface of the body of water above the anchoring means. The floating structure consists of external tendon receptacles adapted for side entry receipt of the plurality of mooring tendons, the tendon receptacles being located at an initial distance above the anchoring means; providing one piece, substantially rigid tendons disposed substantially horizontally near the surface and adjacent the floating structure, the tendons having enlarged top and bottom end connectors and an actual length which is greater than the initial distance; swinging the enlarged bottom end connector of one of the tendons downwardly into a position adjacent one of the plurality of anchoring means; pulling the enlarged bottom end connector of one of the tendons through the side opening in one of the anchoring means.

  18. PREFACE: E-MRS 2012 Spring Meeting, Symposium M: More than Moore: Novel materials approaches for functionalized Silicon based Microelectronics

    NASA Astrophysics Data System (ADS)

    Wenger, Christian; Fompeyrine, Jean; Vallée, Christophe; Locquet, Jean-Pierre

    2012-12-01

    More than Moore explores a new area of Silicon based microelectronics, which reaches beyond the boundaries of conventional semiconductor applications. Creating new functionality to semiconductor circuits, More than Moore focuses on motivating new technological possibilities. In the past decades, the main stream of microelectronics progresses was mainly powered by Moore's law, with two focused development arenas, namely, IC miniaturization down to nano scale, and SoC based system integration. While the microelectronics community continues to invent new solutions around the world to keep Moore's law alive, there is increasing momentum for the development of 'More than Moore' technologies which are based on silicon technologies but do not simply scale with Moore's law. Typical examples are RF, Power/HV, Passives, Sensor/Actuator/MEMS or Bio-chips. The More than Moore strategy is driven by the increasing social needs for high level heterogeneous system integration including non-digital functions, the necessity to speed up innovative product creation and to broaden the product portfolio of wafer fabs, and the limiting cost and time factors of advanced SoC development. It is believed that More than Moore will add value to society on top of and beyond advanced CMOS with fast increasing marketing potentials. Important key challenges for the realization of the 'More than Moore' strategy are: perspective materials for future THz devices materials systems for embedded sensors and actuators perspective materials for epitaxial approaches material systems for embedded innovative memory technologies development of new materials with customized characteristics The Hot topics covered by the symposium M (More than Moore: Novel materials approaches for functionalized Silicon based Microelectronics) at E-MRS 2012 Spring Meeting, 14-18 May 2012 have been: development of functional ceramics thin films New dielectric materials for advanced microelectronics bio- and CMOS compatible

  19. An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine

    NASA Astrophysics Data System (ADS)

    Hong, Sinpyo; Lee, Inwon; Park, Seong Hyeon; Lee, Cheolmin; Chun, Ho-Hwan; Lim, Hee Chang

    2015-05-01

    An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine is presented. The effects of the Center of Gravity (COG), mooring line spring constant, and fair-lead location on the turbine's motion in response to regular waves are investigated. Experimental results show that for a typical mooring system of a SPAR buoy-type Floating Offshore Wind Turbine (FOWT), the effect of mooring systems on the dynamics of the turbine can be considered negligible. However, the pitch decreases notably as the COG increases. The COG and spring constant of the mooring line have a negligible effect on the fairlead displacement. Numerical simulation and sensitivity analysis show that the wind turbine motion and its sensitivity to changes in the mooring system and COG are very large near resonant frequencies. The test results can be used to validate numerical simulation tools for FOWTs.

  20. An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine

    NASA Astrophysics Data System (ADS)

    Hong, Sinpyo; Lee, Inwon; Park, Seong Hyeon; Lee, Cheolmin; Chun, Ho-Hwan; Lim, Hee Chang

    2015-09-01

    An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine is presented. The effects of the Center of Gravity (COG), mooring line spring constant, and fair-lead location on the turbine's motion in response to regular waves are investigated. Experimental results show that for a typical mooring system of a SPAR buoy-type Floating Offshore Wind Turbine (FOWT), the effect of mooring systems on the dynamics of the turbine can be considered negligible. However, the pitch decreases notably as the COG increases. The COG and spring constant of the mooring line have a negligible effect on the fairlead displacement. Numerical simulation and sensitivity analysis show that the wind turbine motion and its sensitivity to changes in the mooring system and COG are very large near resonant frequencies. The test results can be used to validate numerical simulation tools for FOWTs.

  1. Providing Networking to the DEOS Fleet of Moored Ocean Observatories: High-Seas ROADNet.

    NASA Astrophysics Data System (ADS)

    Orcutt, J.; Berger, J.; Vernon, F.; Hansen, T.

    2003-12-01

    Recent advances in the technologies associated with computation, data telemetry and multidisciplinary sensors, have motivated the scientific community to develop a plan for long-term `ocean observatories' where sensors are deployed at the air-sea interface, within the water column, and on and beneath the seafloor. The establishment of a fleet of moored ocean buoy observatories will be an important element of the DEOS initiative, conceived as part of NSF's larger, more inclusive Ocean Observatories Initiative (OOI). These buoys will provide the infrastructure to connect the Internet to a network of ocean-bottom and ocean-column instruments. The most important requirements driving moored observatory design are the amount of power delivered to the seafloor and moored instruments and the telemetry rate that the buoy system must support between the instruments and the shore. Two designs have been developed, a wave-following discus and a spar buoy capable of delivering 500 W to the seafloor and telemetering at least 500 Mbytes of data per day to shore. The only cost-effective alternative for continuous moderate-bandwidth communication (>64 kbps) currently available is a C-Band or Ku-Band satellite system. A prototype C-Band system has been installed on the R/V Roger Revelle, the R/V Melville, and the R/V Thomas Thompson with a teleport hub at the San Diego supercomputer Center. This system provides full-period shipboard Internet connection as the ships operated over wide areas of the Pacific Ocean. The system has proved very effective in providing data, video, and voice communications for the ships' scientists and crew. The data connections to/from the ships are managed by the ROADNet (Real-time Observatories, Applications, and Data management Network) virtual object ring buffer (VORB) technology discussed in other papers in this session.

  2. Design and performance of a horizontal mooring for upper-ocean research

    USGS Publications Warehouse

    Grosenbaugh, Mark; Anderson, Steven; Trask, Richard; Gobat, Jason; Paul, Walter; Butman, Bradford; Weller, Robert

    2002-01-01

    This paper describes the design and performance of a two-dimensional moored array for sampling horizontal variability in the upper ocean. The mooring was deployed in Massachusetts Bay in a water depth of 84 m for the purpose of measuring the horizontal structure of internal waves. The mooring was instrumented with three acoustic current meters (ACMs) spaced along a 170-m horizontal cable that was stretched between two subsurface buoys 20 m below the sea surface. Five 25-m-long vertical instrument strings were suspended from the horizontal cable. A bottom-mounted acoustic Doppler current profiler (ADCP) was deployed nearby to measure the current velocity throughout the water column. Pressure sensors mounted on the subsurface buoys and the vertical instrument strings were used to measure the vertical displacements of the array in response to the currents. Measurements from the ACMs and the ADCP were used to construct time-dependent, two-dimensional current fields. The current fields were used as input to a numerical model that calculated the deformation of the array with respect to the nominal zero-current configuration. Comparison of the calculated vertical offsets of the downstream subsurface buoy and downstream vertical instrument string with the pressure measurements were used to verify the numerical code. These results were then used to estimate total deformation of the array due to the passage of the internal waves. Based on the analysis of the three internal wave events with the highest measured vertical offsets, it is concluded that the geometry of the main structure (horizontal cable and anchor legs) was kept to within ±2.0 m, and the geometry of the vertical instrument strings was kept to within ±4.0 m except for one instance when the current velocity reached 0.88 m s−1.

  3. Design, Fabrication and Testing of Mooring Masts for Remotely Controlled Indoor and Outdoor Airships

    NASA Astrophysics Data System (ADS)

    Khaleelullah, Syed; Bhardwaj, Utsav; Pant, Rajkumar Sureshchandra

    2016-04-01

    This paper presents the design and structural details of two mooring masts, one for remotely controlled outdoor airships and another one for remotely controlled indoor airships. In a previous study, a mast for outdoor remotely controlled airship was designed to meet several user-specified operating requirements, and a simplified version of the same was fabricated. A spring loaded device was incorporated that sounds an alarm when the wind-loads exceed a threshold value, so that the airship can be taken indoors. The present study started with a critical analysis of that mast, and a new mast was designed and fabricated to remove several of its shortcomings. This mast consists of power screw operated telescopic module made of aluminium, mounted on a five legged base with castor wheels, for ease in mobility. Components of the existing mast were used to the possible extent, and the design was simplified to meet the assembly and transportation requirements. The spring mechanism used in alarming device was also modified to ensure higher sensitivity in the range of maximum expected wind-loads acting on the airship. A lightweight mooring mast for indoor remotely controlled airships was also designed and fabricated, which can accommodate non-rigid indoor airships of length up to 5 m. The mast consists of an elevating bolt operated telescopic module mounted on a tripod adapter base, with lockable castor wheels, and has a specially designed mooring-clamp at the top. The various modules and components of the mast were designed to enable quick assembly and transportation.

  4. Fulmar, the first North Sea SALM/VLCC storage system. [Single Ankle Leg Mooring tanker ship

    SciTech Connect

    Mack, R.C.; Wolfram, W.R. Jr.; Gunderson, R.H.; Lunde, P.A.

    1981-01-01

    This paper describes the general configuration of the Fulmar Single Anchor Leg Mooring (SALM), now under construction in the North Sea, and the operations of the SALM/Storage Tanker/Offloading System. The authors briefly describe the design process, including the design conditions, and some of the analyses performed. Selected structural and mechanical components are discussed in some detail. In addition, details are provided on the fabrication of the SALM and the storage tanker converson. The offloading system and the general operations are further discussed.

  5. Observing Poleward Relaxation Flows Along the Central California Coast Using Gliders as Virtual Moorings

    NASA Astrophysics Data System (ADS)

    Washburn, L.; Aragon, D.; Haldeman, C.; Ohlmann, C.; Gotschalk, C.; Couto, N.; Miles, T. N.; Robbins, I.; Schofield, O.; Moline, M.; Kerfoot, J. M.

    2012-12-01

    Gliders and moorings were used in 2011 to observe warm propagating currents that follow relaxations of prevailing upwelling-favorable winds along the central CA coast. Additional measurements will occur in August and September 2012. We are experimenting with various sampling patterns to determine which best allow the gliders to maintain their horizontal positions in the presence of ambient coastal currents. The gliders, manufactured by Teledyne Webb, measure CTD variables and current velocity using externally mounted acoustic Doppler current profilers (ADCPs). ADCP data are processed following the method described by Todd et al. 2011. In September, 2011 two gliders were deployed offshore of Port San Luis, CA, first in 55 m water depth and then in 95 m. During their deployments within a 3-week period, the gliders observed the passage of a strong poleward relaxation flow. The flow followed a rapid decrease in equatorward wind stress from ~0.4 Pa to zero over 24 hr. Sequential warming at three moorings along the coast on the 15 m isobath revealed propagation of about 25 km/day. As the flow passed the gliders, alongshore currents reversed from ~0.15 m/s equatorward to ~0.3 m/s poleward over about 12 hours. ADCP-measured near-surface currents were consistent with simultaneous currents measured in the region by high frequency radar (~1 m depth). Near-surface temperatures at the gliders increased by 3 °C and near-surface salinity decreased by 0.25, consistent with source waters in the Southern California Bight. As of this writing two gliders are being prepared for deployment offshore of Pt. Sal, CA where two moorings have been deployed on the 15 m and 26 m isobaths. Soon after deployment, the gliders will profile around the mooring on the 26 m isobath to provide a validation data set for currents measured by the glider-mounted ADCPs. The gliders will then move offshore to measure poleward flow characteristics on the mid-shelf in water depths of 55m and 100 m. We also

  6. Stiffness and energy dissipation characteristics of guyed tower with dynamic mooring properties

    SciTech Connect

    Morrison, D.G.

    1984-03-01

    A simple model for a complex system is presented that contains the essential properties of the guyed tower. The dynamic response to wave load of a guyed tower is represented by a single degree of freedom model. Tower response, with different wave heights and hydrodynamic coefficients, using statically and dynamically determined mooring properties were calculated for a specific tower in 1100 ft (335 m) of water. The importance of this study lies in a good modeling of the cable forces, including the hysteretic effects of line damping, and in identifying cases where the quasi-static model may fail.

  7. F-104 instrumentation is checked by Keith E. Wright and Gaston A. Moore

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Avionics technician Keith E. Wright (holding the flashlight) is showing Inspector Gaston A. Moore the new installation of instrumentation on the nose shelf of an F-104 at the NASA Ames - Dryden Flight Research Facility. The nose section of an F-104 is composed of a shelf that is attached to the bulkhead of the airplane and holds instrumentation enclosed by a nose cone. The nose cone is similar to a drawer. When open it reveals the instrumentation for repairs and new installations, and when closed it is held in place by fasteners for flight.

  8. Equity and health policy in Africa: Using concept mapping in Moore (Burkina Faso)

    PubMed Central

    Ridde, Valéry

    2008-01-01

    Background This methodological article is based on a health policy research project conducted in Burkina Faso (West Africa). Concept mapping (CM) was used as a research method to understand the local views of equity among stakeholders, who were concerned by the health policy under consideration. While this technique has been used in North America and elsewhere, to our knowledge it has not yet been applied in Africa in any vernacular language. Its application raises many issues and certain methodological limitations. Our objective in this article is to present its use in this particular context, and to share a number of methodological observations on the subject. Methods Two CMs were done among two different groups of local stakeholders following four steps: generating ideas, structuring the ideas, computing maps using multidimensional scaling and cluster analysis methods, and interpreting maps. Fifteen nurses were invited to take part in the study, all of whom had undergone training on health policies. Of these, nine nurses (60%) ultimately attended the two-day meeting, conducted in French. Of 45 members of village health committees who attended training on health policies, only eight were literate in the local language (Moore). Seven of these (88%) came to the meeting. Results The local perception of equity seems close to the egalitarian model. The actors are not ready to compromise social stability and peace for the benefit of the worst-off. The discussion on the methodological limitations of CM raises the limitations of asking a single question in Moore and the challenge of translating a concept as complex as equity. While the translation of equity into Moore undoubtedly oriented the discussions toward social relations, we believe that, in the context of this study, the open-ended question concerning social justice has a threefold relevance. At the same time, those limitations were transformed into strengths. We understand that it was essential to resort to the

  9. Preliminary mooring results at the entrance to the Gulf of California from May to November 2004.

    NASA Astrophysics Data System (ADS)

    Mascarenhas, A. S.; Collins, C. A.; Castro, R.; Navarro, L. F.; Blanco, R.

    2005-05-01

    The preliminary results of two moorings at the entrance to the Gulf of California, from May to November 2004 are discussed. The mooring M1 (23o 28.58' N, 109o 23.34' W), off Cabo Pulmo, Baja California consisted of a ADCP workhorse broadband at 118 m and three MicroCats at 40, 79 and 118 m respectively. The mooring M2 (24o 02.15'N, 107o 51.40' W), off El Dorado, Sinaloa, consisted of a ADP Sontek 250 (KHz) at 115 m and also three MicroCats at 38, 77 and 115 m respectively. The low passed filtered pressures at the three depths in each site are highly coherent while the coherence between the pressures on opposite sides of the entrance at three depths is low, being high only at the diurnal and semidiurnal tidal frequencies. The pressure record at the three depths in the El Dorado side was dominated by two events that occurred on June 10 and October 23, 2004. The first event was preceded by an increase in salinity of about .30 at 40 m, as well as small increases at 80 and 120 m, all of which were associated to an increase in pressure, suggesting an intrusion of a saline vortex. The coherence of temperature and salinity measured at the two moorings was low indicating the difference in changes of thermohaline characteristics. The along shelf current direction was chosen as the principal axes for each current time series (Cabo Pulmo and El Dorado). As expected, the principal axes were aligned with the local isobaths on each shelf. On the Sinaloa shelf (El Dorado), the currents were strongly oriented along the shelf. Along shelf currents were stronger and less variable on the Baja California shelf (Cabo Pulmo). At El Dorado, with the exception of the strong event periods mentioned above when the current reached 0.5 ms-1, flow was weaker and more variable; periods of strong outlfow lasted for about 8 days. The vertically averaged flow at both sides of the entrance to the Gulf was directed out of the Gulf most of the time. This suggests that the persistent cyclonic

  10. Baseline designs of moored and grazing 40-MW OTEC pilot plants. Volume A: Detailed report

    NASA Astrophysics Data System (ADS)

    George, J. F.; Richards, D.

    1980-06-01

    Baseline designs of two types of floating Ocean Thermal Energy Conversion (OTEC) pilot plants are presented. Both designs feature floating concrete hull structures that house up to 40 MW sub e (net) of OTEC power systems. One plant is designed for moored operation at an island site, and use underwater cables to transmit electric power to a shore-based utility company. The other plant is self-propelled and cruises slowly through tropical waters, using the OTEC electric power to produce an energy intensive product onboard, where it is stored for later transshipment to market.

  11. Numerical simulations and model tests of the mooring characteristic of a tension leg platform under random waves

    NASA Astrophysics Data System (ADS)

    Gu, Jia-yang; Yang, Jian-min; Lü, Hai-ning

    2013-10-01

    Analyzing the dynamic response and calculating the tendon tension of the mooring system are necessary for the structural design of a tension leg platform (TLP). The six-degree-of-freedom dynamic coupling responses and the mooring characteristics of TLP under random waves are studied by using a self-developed program. Results are verified by the 1:40 scaling factor model test conducted in the State Key Laboratory of Ocean Engineering at Shanghai JiaoTong University. The mean, range, and standard deviation of the numerical simulation and model test are compared. The influences of different sea states and wave approach angles on the dynamic response and tendon tension of the mooring system are investigated. The acceleration in the center and corner of the deck is forecasted.

  12. Numerical investigation of mooring line damping and the drag coefficients of studless chain links

    NASA Astrophysics Data System (ADS)

    Xu, Zhengqiang; Huang, Shan

    2014-03-01

    The chain/wire rope/chain combination is a common choice for mooring offshore floating platforms. However, data of the drag coefficients of chain links are rather limited, resulting in uncertainties with the calculations of the drag force, and hence the damping of the mooring system. In this paper, the importance of the selection of the drag coefficient is first investigated. The computational fluid dynamics (CFD) method is then used to determine the drag coefficients of a studless chain under steady flows. Numerical model validation is first completed by simulating a smooth circular cylinder under steady flows. In particular, the performance of different turbulence models is assessed through the comparisons between the calculations and the experimental results. The large eddy simulation (LES) model is finally selected for the simulation of steady flows past a chain. The effects of the Reynolds number on the drag coefficient of a stud-less chain is also studied. The results show that the calculated drag coefficients of a stud-less chain are fairly consistent with the available experimental data.

  13. A Total Lightning Perspective of the 20 May 2013 Moore, Oklahoma Supercell

    NASA Technical Reports Server (NTRS)

    Stano, Geoffrey T.; Schultz, Christopher J.; Carey, Lawrence D.; MacGorman, Don R.; Calhoun, Kristin M.

    2014-01-01

    In the early afternoon of 20 May 2013, a storm initiated to the west-southwest of Newcastle, Oklahoma. This storm would rapidly intensify into the parent supercell of the tornado that struck the city of Moore, Oklahoma. This article describes what contributions total lightning observations from the Oklahoma Lightning Mapping Array could provide to operational forecasters had these observations been available in real-time. This effort includes a focus on the GOES-R pseudo-geostationary lightning mapper demonstration product as well as the NASA SPoRT / Meteorological Development Laboratory's total lightning tracking tool. These observations and tools identified several contributions. Two distinct lightning jumps at 1908 and 1928 UTC provided a lead time of 19 minutes ahead of severe hail and 26 minutes ahead of the Moore, Oklahoma tornado's touchdown. These observations provide strong situational awareness to forecasters, as the lightning jumps are related to the rapid strengthening of the storm's updraft and mesocyclone and serve as a precursor to the stretching of the storm vortex ahead severe weather.

  14. Enabling More than Moore: Accelerated Reliability Testing and Risk Analysis for Advanced Electronics Packaging

    NASA Technical Reports Server (NTRS)

    Ghaffarian, Reza; Evans, John W.

    2014-01-01

    For five decades, the semiconductor industry has distinguished itself by the rapid pace of improvement in miniaturization of electronics products-Moore's Law. Now, scaling hits a brick wall, a paradigm shift. The industry roadmaps recognized the scaling limitation and project that packaging technologies will meet further miniaturization needs or ak.a "More than Moore". This paper presents packaging technology trends and accelerated reliability testing methods currently being practiced. Then, it presents industry status on key advanced electronic packages, factors affecting accelerated solder joint reliability of area array packages, and IPC/JEDEC/Mil specifications for characterizations of assemblies under accelerated thermal and mechanical loading. Finally, it presents an examples demonstrating how Accelerated Testing and Analysis have been effectively employed in the development of complex spacecraft thereby reducing risk. Quantitative assessments necessarily involve the mathematics of probability and statistics. In addition, accelerated tests need to be designed which consider the desired risk posture and schedule for particular project. Such assessments relieve risks without imposing additional costs. and constraints that are not value added for a particular mission. Furthermore, in the course of development of complex systems, variances and defects will inevitably present themselves and require a decision concerning their disposition, necessitating quantitative assessments. In summary, this paper presents a comprehensive view point, from technology to systems, including the benefits and impact of accelerated testing in offsetting risk.

  15. Diel vertical migration of zooplankton at the S1 biogeochemical mooring revealed from acoustic backscattering strength

    NASA Astrophysics Data System (ADS)

    Inoue, Ryuichiro; Kitamura, Minoru; Fujiki, Tetsuichi

    2016-02-01

    We examined the diel vertical migration of zooplankton by using the backscatter strength obtained from moored acoustic Doppler current profilers at mooring site S1 in the North Pacific subtropical gyre. There was seasonal variability in the vertical distribution and migration of the high-backscatter layers in that they became deeper than the euphotic zone (<100 m) in winter and were confined above this depth in other seasons. Seasonal changes in daylight hours also affected the timing of the diel migration. We found that lunar cycles affected vertical distributions of zooplankton near the surface by changing the light intensity. Physical events, such as mixed-layer deepening and restratification and the passage of a mesoscale eddy, also affected zooplankton behavior possibly by changing food environment in the euphotic zone. Since the comparison with net samples indicated that the backscatter likely represents the bulk biomass, the accuracy of biomass estimates based on net samples could be influenced by the high temporal variability of zooplankton distributions.

  16. Two-year moored instrument results along 152 deg E. [of North Pacific

    NASA Technical Reports Server (NTRS)

    Schmitz, William J., Jr.; Niiler, Pearn P.; Koblinsky, Chester J.

    1987-01-01

    Results from a 2-year (nominal) deployment of a moored array along 152 deg E from 28 deg N to 41 deg N are presented, with emphasis on similarities and differences between settings (approximately year-to-year). Ten moorings and 38 instruments were involved, from the fall of 1980 to 1982. Current-temperature meters spanned the water column from 500- to 4000-m depths, with occasional instruments in the vicinity of 300 m and near the bottom (about 6000 m). Upper level features located in the center of the array near 35-36 deg N were generally stable relative to the axis of the Kuroshio Extension, varying from deployment to deployment with meanders in this flow regime. Some properties of the abyssal (about 4000 m) currents were comparatively more variable, with these changes not connected to meandering of the Kuroshio Extension in an obvious way. The vertical structure and frequency distributions of eddy kinetic energy were similar in shape and to some extent in amplitude from deployment to deployment, especially relative to meanders of the Kuroshio Extension, but translated in the opposite direction.

  17. High Frequency, Long Time Series Measurements from the Bermuda Testbed Mooring in Support of SIMBIOS. Chapter 8

    NASA Technical Reports Server (NTRS)

    Dickey, Tommy; Dobeck, Laura; Sigurdson, David; Zedler, Sarah; Manov, Derek; Yu, Xuri

    2001-01-01

    It has been recognized that optical moorings are important platforms for the validation of Sea-Viewing Wide Field-of-view Sensor (SeaWiFS). It was recommended that optical moorings be maintained in order to: (1) provide long-term time series comparisons between in situ and SeaWIFS measurements of normalized water-leaving radiance; (2) develop and test algorithms for pigment biomass and phytoplankton primary productivity; and (3) provide long-term, virtually continuous in situ observations which can be used to determine and optimize the accuracy of derived satellite products. These applications require the use of in situ radiometers for long periods of time to evaluate and correct for inherent satellite undersampling (aliasing and biasing) and degradation of satellite color sensors (e.g., drifts as experienced by the Coastal Zone Color Scanner). The Bermuda Testbed Mooring (BTM) program was initiated in 1994 at a site located about 80km southeast of Bermuda in waters of about 4530 m depth. In August 1997, with NASA's support, we started to provide the Sensor Intercomparison and Merger for Biological and Interdisciplinary Oceanic Studies (SIMBIOS) program with large volumes of high frequency, long-term time-series bio-optical data from the BTM for SeaWiFS satellite ocean color groundtruthing and algorithm development. This NASA supported portion of the BTM activity spanned three years and covered five BTM deployments. During these three years, the quality of radiometric data has improved dramatically. Excellent agreement between BTM moored data and both SeaWiFS and nearby ship profile radiometric data demonstrate that technical advances in the moored optical observations have reduced the major difficulties that moored platforms face: biofouling and less frequent calibration.

  18. Integration of multi-objective structural optimization into cementless hip prosthesis design: Improved Austin-Moore model.

    PubMed

    Kharmanda, G

    2016-11-01

    A new strategy of multi-objective structural optimization is integrated into Austin-Moore prosthesis in order to improve its performance. The new resulting model is so-called Improved Austin-Moore. The topology optimization is considered as a conceptual design stage to sketch several kinds of hollow stems according to the daily loading cases. The shape optimization presents the detailed design stage considering several objectives. Here, A new multiplicative formulation is proposed as a performance scale in order to define the best compromise between several requirements. Numerical applications on 2D and 3D problems are carried out to show the advantages of the proposed model. PMID:27028554

  19. Making the Connection: Moore's Theory of Transactional Distance and Its Relevance to the Use of a Virtual Classroom in Postgraduate Online Teacher Education

    ERIC Educational Resources Information Center

    Falloon, Garry

    2011-01-01

    This study explored the use of the Web-based virtual environment, Adobe Connect Pro, in a postgraduate online teacher education programme at the University of Waikato. It applied the tenets of Moore's Theory of Transactional Distance (Moore, 1997) in examining the efficacy of using the virtual classroom to promote quality dialogue and explored how…

  20. SEEP II, Shelf Edge Exchange Processes-II: Chlorophyll a fluorescence, temperature, and beam attenuation measurements from moored fluorometers

    SciTech Connect

    Medeiros, W.H.; Wirick, C.D.

    1992-02-01

    The Shelf Edge Exchange Processes (SEEP) program sponsored by the United States Department of Energy is a multi-institutional effort designed to investigate the flux of suspended material from the continental shelf to the waters of the upper slope, and then possibly into the slope sediments. The first SEEP experiment (SEEP I) was across the outer continental shelf of New England during 1983--1984 and consisted of a series of nine cruises and a mooring array. The second experiment (SEEP II) focused specifically of the shelf/slope frontal region of the mid-Atlantic Bight off the Delmarva peninsula. This report presents data collected during SEEP II. The SEEP II experiment consisted of a series of ten cruises and mooring arrays as well as over-flights by NASA aircraft. The cruises were consecutively designated SEEP2-01 to SEEP2-10. Hydrographic data were collected on all cruises except SEEP2-04 and SEEP2-07 during which benthic processes were investigated. Mooring arrays were deployed during three cruises in the Spring, Summer and Winter of 1988. Brookhaven National Laboratory deployed sixteen fluorometer instrument packages on their moorings with sensors to measure: the in vivo fluorescence of phytoplankton, temperature, subsurface light, dissolved oxygen, and water transparency. Data from the fluorometer, temperature, and transmissometer sensors are reported herein.

  1. Crossing the Bridge to Higher Mathematics: Using a Modified Moore Approach to Assist Students Transitioning to Higher Mathematics

    ERIC Educational Resources Information Center

    McLoughlin, M. Padraig M. M.

    2008-01-01

    The author of this paper submits that a mathematics student needs to learn to conjecture and prove or disprove said conjecture. Ergo, the purpose of the paper is to submit the thesis that learning requires doing; only through inquiry is learning achieved, and hence this paper proposes a programme of use of a modified Moore method in a Bridge to…

  2. Methodological Issues in the Validation of Implicit Measures: Comment on De Houwer, Teige-Mocigemba, Spruyt, and Moors (2009)

    ERIC Educational Resources Information Center

    Gawronski, Bertram; LeBel, Etienne P.; Peters, Kurt R.; Banse, Rainer

    2009-01-01

    J. De Houwer, S. Teige-Mocigemba, A. Spruyt, and A. Moors's normative analysis of implicit measures provides an excellent clarification of several conceptual ambiguities surrounding the validation and use of implicit measures. The current comment discusses an important, yet unacknowledged, implication of J. De Houwer et al.'s analysis, namely,…

  3. A Modified Moore Approach to Teaching Mathematical Statistics: An Inquiry Based Learning Technique to Teaching Mathematical Statistics

    ERIC Educational Resources Information Center

    McLoughlin, M. Padraig M. M.

    2008-01-01

    The author of this paper submits the thesis that learning requires doing; only through inquiry is learning achieved, and hence this paper proposes a programme of use of a modified Moore method in a Probability and Mathematical Statistics (PAMS) course sequence to teach students PAMS. Furthermore, the author of this paper opines that set theory…

  4. 33 CFR 149.650 - What are the requirements for single point moorings and their attached hoses?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false What are the requirements for single point moorings and their attached hoses? 149.650 Section 149.650 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: DESIGN, CONSTRUCTION, AND EQUIPMENT Design and...

  5. 33 CFR 149.575 - How must objects protruding from the water, other than platforms and single point moorings, be...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false How must objects protruding from the water, other than platforms and single point moorings, be marked? 149.575 Section 149.575 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: DESIGN, CONSTRUCTION,...

  6. 33 CFR 149.575 - How must objects protruding from the water, other than platforms and single point moorings, be...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false How must objects protruding from the water, other than platforms and single point moorings, be marked? 149.575 Section 149.575 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: DESIGN, CONSTRUCTION,...

  7. 33 CFR 165.804 - Snake Island, Texas City, Texas; mooring and fleeting of vessels-safety zone.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Snake Island, Texas City, Texas... Guard District § 165.804 Snake Island, Texas City, Texas; mooring and fleeting of vessels—safety zone... Turning Basin west of Snake Island; (3) The area of Texas City Channel from the north end of the...

  8. 33 CFR 165.804 - Snake Island, Texas City, Texas; mooring and fleeting of vessels-safety zone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Snake Island, Texas City, Texas... Guard District § 165.804 Snake Island, Texas City, Texas; mooring and fleeting of vessels—safety zone... Turning Basin west of Snake Island; (3) The area of Texas City Channel from the north end of the...

  9. 33 CFR 165.804 - Snake Island, Texas City, Texas; mooring and fleeting of vessels-safety zone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Snake Island, Texas City, Texas... Guard District § 165.804 Snake Island, Texas City, Texas; mooring and fleeting of vessels—safety zone... Turning Basin west of Snake Island; (3) The area of Texas City Channel from the north end of the...

  10. 33 CFR 165.804 - Snake Island, Texas City, Texas; mooring and fleeting of vessels-safety zone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Snake Island, Texas City, Texas... Guard District § 165.804 Snake Island, Texas City, Texas; mooring and fleeting of vessels—safety zone... Turning Basin west of Snake Island; (3) The area of Texas City Channel from the north end of the...

  11. Enhanced-Group Moore Method: Effects on van Hiele Levels of Geometric Understanding, Proof-Construction Performance and Beliefs

    ERIC Educational Resources Information Center

    Salazar, Douglas A.

    2012-01-01

    This study aimed to improve the van Hiele levels of geometric understanding, proof-construction performance and beliefs about proofs of the research respondents: future mathematics teachers exposed to the traditional (instructor-based) method and the enhanced-group Moore method. By using the quasi-experimental method of research, the study…

  12. Conceptual design and numerical simulations of a vertical axis water turbine used for underwater mooring platforms

    NASA Astrophysics Data System (ADS)

    Wenlong, Tian; Baowei, Song; Zhaoyong, Mao

    2013-12-01

    Energy is a direct restriction to the working life of an underwater mooring platform (UMP). In this paper, a vertical axis water turbine (VAWT) is designed to supply energy for UMPs. The VAWT has several controlled blades, which can be opened or closed by inside plunger pumps. Two-dimensional transient numerical studies are presented to determine the operating performance and power output of the turbine under low ocean current velocity. A standard k-ɛ turbulence model is used to perform the transient simulations. The influence of structural parameters, including foil section profile, foil chord length and rotor diameter, on the turbine performance are investigated over a range of tipspeed- ratios ( TSRs ). It was found that turbine with three unit length NACA0015 foils generated a maximum averaged coefficient of power, 0.1, at TSR = 2.

  13. Appearance of a Moore's law in MEMS? Trends affecting the MNT supply chain

    NASA Astrophysics Data System (ADS)

    van Heeren, Henne

    2006-04-01

    This presentation will address some of the latest market and technology developments for components using MST/MEMS such as portable consumer products, data storage devices etc. The impacts of these developments on the supply chain for MST/MEMS will be discussed. A MST/MEMS mantra is "there is no Moore's law in MEMS". This presentation will demonstrate that elements of MEMS roadmaps are appearing. Although the MEMS industry is highly diverse, sometimes trends can be identified which affect the industry as a whole. To identify and understand these trends is of the utmost importance for the service and equipment suppliers in the MNT/MEMS supply chain. These facilities have to invest in new technologies to be able to sustain their competitive position.

  14. Molecular phylogenetic trees - On the validity of the Goodman-Moore augmentation algorithm

    NASA Technical Reports Server (NTRS)

    Holmquist, R.

    1979-01-01

    A response is made to the reply of Nei and Tateno (1979) to the letter of Holmquist (1978) supporting the validity of the augmentation algorithm of Moore (1977) in reconstructions of nucleotide substitutions by means of the maximum parsimony principle. It is argued that the overestimation of the augmented numbers of nucleotide substitutions (augmented distances) found by Tateno and Nei (1978) is due to an unrepresentative data sample and that it is only necessary that evolution be stochastically uniform in different regions of the phylogenetic network for the augmentation method to be useful. The importance of the average value of the true distance over all links is explained, and the relative variances of the true and augmented distances are calculated to be almost identical. The effects of topological changes in the phylogenetic tree on the augmented distance and the question of the correctness of ancestral sequences inferred by the method of parsimony are also clarified.

  15. Moore-Gibson-Thompson equation with memory, part I: exponential decay of energy

    NASA Astrophysics Data System (ADS)

    Lasiecka, Irena; Wang, Xiaojun

    2016-04-01

    We are interested in the Moore-Gibson-Thompson equation with memory τ{u}_{ttt}+ α u_{tt}+c2Au+bAu_t -int_0tg(t-s)A w(s){d}s=0. This model arises in high-frequency ultrasound applications accounting for thermal flux and molecular relaxation times. According to revisited extended irreversible thermodynamics, thermal flux relaxation leads to the third-order derivative in time while molecular relaxation leads to non-local effects governed by memory terms. The resulting model is of hyperbolic type with viscous effects. We first classify the memory into three types. Then, we study how a memory term creates damping mechanism and how the memory causes energy decay even in the cases when the original memoryless system is unstable.

  16. Pyroxenes in Serra de Mage - Cooling history in comparison with Moama and Moore County

    NASA Technical Reports Server (NTRS)

    Harlow, G. E.; Prinz, M.; Nehru, C. E.; Taylor, G. J.; Keil, K.

    1979-01-01

    Thin sections and single grains of pyroxenes from the Serra de Mage feldspar cumulate eucrites were studied by X-ray crystallography, electron microprobe and optical techniques. It was concluded that the pyroxene crystallized as pigeonite. On cooling augite was exsolved along (001) and inverted to hypersthene, with exsolution of (100) augite from hypersthene during continued slow cooling. The estimated original bulk composition of the pigeonite pyroxene is Wo10En51Fs39. The compositional data, textural relations, and existence of P2 sub 1 ca hypersthene suggest very low cooling (about 0.0004 deg C/year) below 800 deg. The Serra de Mage augite lamellae were found to be as thick or thicker than those of Moore County and Moama meteorites.

  17. Insights from a 3-D temperature sensors mooring on stratified ocean turbulence

    NASA Astrophysics Data System (ADS)

    Haren, Hans; Cimatoribus, Andrea A.; Cyr, Frédéric; Gostiaux, Louis

    2016-05-01

    A unique small-scale 3-D mooring array has been designed consisting of five parallel lines, 100 m long and 4 m apart, and holding up to 550 high-resolution temperature sensors. It is built for quantitative studies on the evolution of stratified turbulence by internal wave breaking in geophysical flows at scales which go beyond that of a laboratory. Here we present measurements from above a steep slope of Mount Josephine, NE Atlantic where internal wave breaking occurs regularly. Vertical and horizontal coherence spectra show an aspect ratio of 0.25-0.5 near the buoyancy frequency, evidencing anisotropy. At higher frequencies, the transition to isotropy (aspect ratio of 1) is found within the inertial subrange. Above the continuous turbulence spectrum in this subrange, isolated peaks are visible that locally increase the spectral width, in contrast with open ocean spectra. Their energy levels are found to be proportional to the tidal energy level.

  18. A New Species of the Genus Parasa Moore (Lepidoptera: Limacodidae) from Yemen

    PubMed Central

    Solovyev, Alexey V.; Saldaitis, Aidas

    2010-01-01

    A new species Parasa dusii Solovyev and Saldaitis from northern Yemen is described (holotype in Museum Witt, Munich; Germany). The species has tendency to lose the green pigment typical for other congeners. It is provisionally placed into the genus Parasa Moore, 1859 where it is closely related to P. divisa West, 1940, P. catori Bethune-Baker, 1911, P. marginata West, 1940, P. thamia Rungs, 1951, P. dentina Hering, 1932, P. ananii Karsch, 1896, and P. semiochracea Hering, 1933. The relationship of the new species to these African species suggests its secondary penetration into the Arabian Peninsula from an origin in tropical Africa. The problems of monophyly of the genus Parasa and several associated genera are briefly discussed. All important characters of the new species, and some related species, are illustrated. PMID:21265613

  19. A new species of the genus Parasa Moore (Lepidoptera: Limacodidae) from Yemen.

    PubMed

    Solovyev, Alexey V; Saldaitis, Aidas

    2010-01-01

    A new species Parasa dusii Solovyev and Saldaitis from northern Yemen is described (holotype in Museum Witt, Munich; Germany). The species has tendency to lose the green pigment typical for other congeners. It is provisionally placed into the genus Parasa Moore, 1859 where it is closely related to P. divisa West, 1940, P. catori Bethune-Baker, 1911, P. marginata West, 1940, P. thamia Rungs, 1951, P. dentina Hering, 1932, P. ananii Karsch, 1896, and P. semiochracea Hering, 1933. The relationship of the new species to these African species suggests its secondary penetration into the Arabian Peninsula from an origin in tropical Africa. The problems of monophyly of the genus Parasa and several associated genera are briefly discussed. All important characters of the new species, and some related species, are illustrated. PMID:21265613

  20. Baseline designs of moored and grazing 40-MW OTEC pilot plants. Volume A. Detailed report

    SciTech Connect

    George, J.F.; Richards, D.

    1980-06-01

    The Applied Physics Laboratory (APL) of the Johns Hopkins University has engineered baseline designs of two types of floating Ocean Thermal Energy Conversion (OTEC) pilot plants. Both designs feature floating concrete hull structures that house up to 40 MW/sub e/(net) of OTEC power systems. One plant is designed for moored operation at an island site, and uses underwater cables to transmit electric power to a shore-based utility company. The other plant is self-propelled and cruises slowly through tropical waters, using the OTEC electric power to produce an energy-intensive product onboard, where it is stored for later transshipment to market. The work is documented in two volumes. This volume is the Detailed Report, which develops the design rationale, summarizes important calculations, outlines areas for future work, and presents a study of system costs.

  1. Willie Hobbs Moore (1934-1994): The First Female African American Physicist

    NASA Astrophysics Data System (ADS)

    Mickens, Ronald

    2011-03-01

    We discuss the life and career of Willie Hobbs Moore, the first African American woman to receive a doctorate degree in physics. This achievement occurred in June 1972 at the University of Michigan, Ann Arbor, MI. Her dissertation, directed by the renowned spectroscopist Samuel Krimm, was on the subject of ``A Vibrational Analysis of Secondary Chlorides," and focused on a theoretical analysis of the secondary chlorides for polyvinal-chlorine polymers. From 1972--1977, she, Krimm, and collaborators published more than thirty papers on this and related research issues. In addition to an overview of her family background, her careers as a research physicist and scientist working in various industrial laboratories, we discuss the obstacles and successes she encountered at various stages of her life.

  2. An Instrument for Autonomous Measurement of the CO2 System in Seawater via Moored Deployments

    NASA Astrophysics Data System (ADS)

    Martin, W. R.; Sayles, F. L.; McCorkle, D. C.

    2011-12-01

    Recent study of the oceanic uptake of CO2 and its consequences for chemical balances in seawater have made clear the need for continuous, autonomous measurements of the CO2 system. RATS (the Robotic Analyzer for the TCO2 system in Seawater) has been developed to fill that need for mooring-based measurements. The instrument combines conductimetric measurement of TCO2 with spectrophotometric pH measurement for calculation of CO2 speciation. The TCO2/ pH pair of analyses permits precise calculation of both pCO2 (for air-sea exchange studies) and the saturation state of seawater with respect to carbonate minerals (for studies of the effect of ocean acidification on calcifying organisms). Operating under battery power, RATS can perform a total of 800 analyses at intervals of 1.5-hours or more for deployments of up to 8 months. Field tests have shown that TCO2 can be measured over a 6-week interval with precision and accuracy of +/- 3.5 micromol/kg. The recently rebuilt pH system has been shown in the laboratory to have precision of +/- 0.001 pH units and accuracy of +/- 0.005 or better; this performance was sustained over a 2-month test period. The new pH system and TCO2 will be tested in the field in the fall of 2011; tests will include detailed comparison of RATS with discrete, laboratory-based measurements of the CO2 system. RATS is a low-power, mooring-based instrument that meets the needs for the study of CO2 cycling in the surface ocean.

  3. Volume transport and mixing of the Faroe Bank Channel overflow from one year of moored measurements

    NASA Astrophysics Data System (ADS)

    Ullgren, Jenny E.; Darelius, Elin; Fer, Ilker

    2016-03-01

    One-year long time series of current velocity and temperature from eight moorings deployed in the Faroe Bank Channel (FBC) are analysed to describe the structure and variability of the dense overflow plume on daily to seasonal timescales. Mooring arrays were deployed in two sections: located 25 km downstream of the main sill, in the channel that geographically confines the overflow plume at both edges (section C), and 60 km further downstream, over the slope (section S). At section C, the average volume transport of overflow waters ( < 3 °C) from the Nordic Seas towards the Iceland Basin was 1.3 ± 0.3 Sv; at section S, transport of modified overflow water ( < 6 °C) was 1.7 ± 0.7 Sv. The volume transport through the slope section was dominated by mesoscale variability at 3-5-day timescales. A simplified view of along-path entrainment of a gravity current may not be accurate for the FBC overflow. As the plume proceeds into the stratified ambient water, there is substantial detrainment from the deeper layer (bounded by the 3 °C isotherm), of comparable magnitude to the entrainment into the interfacial layer (between the 3 and 6 °C isotherms). A time series of gradient Richardson numbers suggests a quiescent plume core capped by turbulent near bottom and interfacial layers in the channel. At section S, in contrast, the entire overflow plume is turbulent. Based on a two-layer heat budget constructed for the overflow, time mean vertical diffusivities across the top of the bottom layer and across the interfacial layer were (30 ± 15) × 10-4 and (120 ± 43) × 10-4 m2 s-1, respectively.

  4. Reconstructing Fjord Circulation Near a Greenland Tidewater Glacier with Physical Modeling and in Situ Mooring Data

    NASA Astrophysics Data System (ADS)

    Schild, K. M.; Hawley, R. L.; Straneo, F.; Cenedese, C.

    2014-12-01

    The rapid speedup of Greenland tidewater glaciers over the last decade, and subsequent mass loss, has been attributed to an increase in air temperature and a synchronous increase in ocean temperatures. The warming subtropical waters previously thought to only exist offshore of Greenland, have been observed throughout most Greenland fjords, and have been suggested to play a large role in submarine melting of the floating glacier terminus and subsequent calving. Warm subtropical water can become entrained by subglacial meltwater as it exits from beneath the glacier. As the buoyant subglacial meltwater moves along the glacier terminus to the surface, the entrained subtropical water contributes to terminus melting and subsequent iceberg melting. However, the impact of a meltwater plume on fjord stratification has been difficult to study due to the limited accessibility of the proglacial environment. We collected a mooring record of salinity and temperature from 2010-2013 at 14 m depth in Sermilik fjord, East Greenland (~25-30 km from the terminus of Helheim Glacier). This record shows a temperature deviation from a sinusoidal seasonal trend between June and October each year; temperatures steadily decrease between June and August and warm again over the subsequent two months. We hypothesize there are three factors driving temperature and salinity changes in the surface waters: (1) subglacial meltwater release, (2) glacier calving, and (3) proglacial circulation. In this study we construct a physical model of the proglacial fjord environment. We modify the quantity, duration and depth of subglacial meltwater release to reconstruct the mooring temperature and salinity records. Results of this study illuminate the influence of subglacial discharge and iceberg melt on proglacial fjord dynamics, an important component in understanding ice sheet- ocean interactions in a warming climate.

  5. Beyond Moore's Law: Heterogeneous Integration of III-N Semiconductors and Si CMOS Electronics

    NASA Astrophysics Data System (ADS)

    Palacios, Tomas

    2009-03-01

    Moore's law has been one of the main drivers behind the unprecedented development of semiconductors in the last forty years. However, this economical and technological paradigm that has helped to create modern Si electronics is now jeopardizing its future. Traditional Si scaling is not only becoming unaffordable, but the performance improvement due to scaling is diminishing. Our group is working on an approach different from Moore's law to increase the performance of electronics: the heterogeneous integration of different semiconductor materials on the same wafer. In this paper, we describe our work on the seamless integration of GaN-based devices and Si electronics. While Si electronics has shown unsurpassed levels of scaling and circuit complexity, nitride semiconductors offer excellent optoelectronics and high frequency/power electronic properties. The ability to combine these two material systems in the same chip and in extremely close proximity would allow unprecedented flexibility for advanced applications. Using wafer bonding technology, virtual Si (001) / GaN / Si (001) substrates have been fabricated for the first time. Due to the high thermal stability of GaN, Si CMOS electronics can be processed in this new substrates without affecting the nitride layers underneath the surface. After the Si devices are fabricated, the Si material is removed from the regions where nitride devices are needed. Then, the nitride devices (transistors, LEDs, lasers or sensors) are processed at room temperature and, finally, an interconnection layer forms the final hybrid circuits. Using this new technology several hybrid circuits are currently being developed, including high power differential amplifiers and normally-off power transistors. These advanced circuits are just a few examples of the potential of heterogeneous integration and how the close integration of Si and other materials enables a vast array of new exciting opportunities for electronics.

  6. Volume transport and mixing of the Faroe Bank Channel overflow from one year of moored measurements

    NASA Astrophysics Data System (ADS)

    Ullgren, J. E.; Darelius, E.; Fer, I.

    2015-10-01

    One-year long time series of current velocity and temperature from ten moorings deployed in the Faroe Bank Channel (FBC) are analysed to describe the structure and variability of the dense overflow plume on daily to seasonal time scales. Mooring arrays are deployed in two sections: located 25 km downstream of the main sill, in the channel that geographically confines the overflow plume at both edges (section C), and 60 km further downstream, over the slope (section S). At section C, the average volume transport of overflow waters (< 3 °C) from the Nordic Seas towards the Iceland Basin is 1.3 ± 0.3 Sv; at Section S, transport of modified overflow water (< 6 °C) is 1.8 ± 0.7 Sv. The volume transport through the slope section is dominated by mesoscale variability at 3-5 day time scale. A simplified view of along-path entrainment of a gravity current is not accurate for the FBC overflow. As the plume proceeds into the stratified ambient water, there is substantial detrainment from the deeper layer (bounded by the 3 °C isotherm), of comparable magnitude to the entrainment into the interfacial layer (between the 3 and 6 °C isotherms). Time series of gradient Richardson number suggests a quiescent plume core capped by turbulent near bottom and interfacial layers in the channel. At section S, in contrast, the entire overflow plume is turbulent. Based on a two-layer heat budget constructed for the overflow, mean diffusivities across the top of the bottom layer, and across the interfacial layer are (30 ± 15) × 10-4 m2 s-1 and (119 ± 43) × 10-4 m2 s-1, respectively.

  7. The Brenner Moor - A saline bog as a source for halogenated and non-halogenated volatile compounds

    NASA Astrophysics Data System (ADS)

    Krause, T.; Studenroth, S.; Furchner, M.; Hoffman, A.; Lippe, S.; Kotte, K.; Schöler, H. F.

    2012-04-01

    The Brenner Moor is a small bog in the catchment area of the river Trave located in Schleswig-Holstein, North Germany, between Baltic and North Sea. The bog is fed by several saline springs with chloride concentrations up to 15 g/L. The high chloride concentrations and the high organic content of the peat make the Brenner Moor an ideal source for the abiotic formation of volatile organic halogenated compounds (VOX). VOX play an important role in the photochemical processes of the lower atmosphere and information on the atmospheric input from saline soils like the Brenner Moor will help to understand the global fluxes of VOX. Soil samples were taken in spring 2011 from several locations and depths in the vicinity of the Brenner Moor. The samples were freeze-dried, ground and incubated in water emphasising an abiotic character for the formation of volatile organic compounds. 1,2-dichloroethane and trichloromethane are the main halogenated compounds emitted from soils of the Brenner Moor. The abiotic formation of trichloromethane as well as other trihalomethanes has been part of intensive studies. A well known source is the decarboxylation of trichloroacetic acid and trichloroacetyl-containing compounds to trichloromethane [1]. Huber et al. discovered another pathway in which catechol, as a model compound for organic substances, is oxidised under Fenton-like conditions with iron(III), hydrogen peroxide and halides to form trihalomethanes [2]. Besides the halogenated compounds, the formation of sulphur compounds such as dimethyl sulfide and dimethyl disulfide and several furan derivatives could be detected which also have an impact on atmospheric chemistry, especially particle formation of clouds. Furan, methylfuran and dimethylfuran are compounds that can be obtained under Fenton-like oxidation from catechol, methyl- and dimethylcatechol and are known to be produced in natural soils [3]. A novel class of furan derivatives that are formed under abiotic conditions from

  8. NIOZ high-resolution moored temperature observations: benefits and new challenges.

    NASA Astrophysics Data System (ADS)

    Cimatoribus, Andrea; Gostiaux, Louis; Cyr, Frederic; van Haren, Hans

    2016-04-01

    The Royal Netherlands Institute for Sea Research has been developing for several years a family of temperature sensors (NIOZ1 to NIOZ5). In the latest iterations of this project, these instruments are precise (10‑3 K or better), have a very low noise level (below 10‑3 K), are relatively fast (sampling rate of 1Hz) and can measure for extended periods of time (several months). Being also compact and lightweight, several thermistors can be attached on a single line at a fine vertical spacing (20cm or more). When mounted on a cable, the instruments are all synchronised to a single clock, thus providing simultaneous measurements throughout the depth range of the mooring (usually in the order of 100m). Recently, the instruments have also been deployed in a group of 5 lines approximately 5m apart from each other, providing a unique view on the three-dimensional temperature field. After almost 10 years of successful deployments at sea, we try to draw some conclusions from this effort, from the scientific and technical point of view. This observational system provides temperature measurements with vertical spatial resolution comparable to that of microstructure profilers, but in comparison to ship-borne systems it offers some distinctive features: providing instantaneous measurements throughout the mooring, observations of waves and overturning structures are not influenced by the time delay between measurements at different depths; the very low noise level and high precision enables the study of the deep, weakly stratified ocean; by using a heavy ballast at the bottom and a high net buoyancy at the top of the mooring, Eulerian measurements are effectively obtained; continuous, high sampling rate Eulerian measurements enable to assess the intermittent, sporadic nature of turbulence and wave activity in the ocean; the large range of time scales included in the observations (100 ‑ 106 s) allows to study a large portion of the turbulence inertial range, the full

  9. Sea-Change in Ocean Observations on Moored Buoys from the National Data Buoy Center (NDBC)

    NASA Astrophysics Data System (ADS)

    Bouchard, R. H.; Elliott, J.; Pounder, D.; Kern, K.

    2014-12-01

    The presentation will provide the technical specifications, the systems engineering processes, and preliminary results from laboratory and field tests, as the National Data Buoy Center (NDBC) undertakes a fundamental and broad transformation (sea-change) of its ocean observing systems on moored buoys. This transformation is necessary to gain efficiencies in maintaining operational ocean observation networks and to increase their reliability, which will reduce maintenance costs. The presentation will also compare and contrast existing and planned systems. The Self-Contained Ocean Observations Payload (SCOOP) takes advantage of the advances in communications and small, efficient, multi-purpose sensors to reduce the size and costs of systems and expand the suite of available real-time ocean observations. The communications will allow NDBC to increase the precision and decrease the latency of the observations. The hallmark of SCOOP is the modularity of the payloads that allow NDBC to host specialized systems, for the oceanographic research community, which may include observing ocean acidification and algal blooms, and tracking marine life, alongside its standard suite of meteorological, oceanographic, and wave systems. SCOOP will include cameras, primarily to document vandalism incidents, but they can also serve to corroborate many of the automatic observations. The two-year integration project - focused on recapitalization of NDBC's network of Hurricane Weather buoys - is aided by NDBC's 40 years of experience with marine observations and its continually improving approach to testing. Testimony to the rigor of NDBC's development and test procedures is that the World Meteorological Organization and the Intergovernmental Ocean Commission have designated NDBC as the first Regional Marine Instrumentation Center (RMIC). Integral to the fielding of these new systems is a Mission Control Center (MCC) performing the real-time, specialized monitoring and analyses and

  10. Optical variability and pigment biomass in the Sargasso Sea as determined using deep-sea optical mooring data

    NASA Technical Reports Server (NTRS)

    Smith, R. C.; Waters, K. J.; Baker, K. S.

    1991-01-01

    A 9-month time series of optical data, composed of three separate deployments, from the Biowatt 1987 deep-sea mooring located in the oligotrophic waters of the Sargasso Sea at 32 deg N, 70 deg W, is presented. These data were analyzed using several biooptical models for the purpose of providing a continuous estimate of the spectral diffuse attenuation coefficient and pigment biomass. Results of the first 70-day deployment demonstrate the utility of optical observations as proxy measures of biological parameters, and facilitate a preliminary analysis of the temporal variations and a comparison of the present biooptical observations with concurrent physical observations. Biooptical properties exhibit variation in response to physical forcings, such as diel variations of incident solar irradiance, episodic wind forcing, advective mesoscale eddy layer depth, and succession of phytoplankton. The mooring data are discussed in the context of contemporaneous shipboard observations as well as in terms of future ocean satellite observations.

  11. Development of mooring-anchor program in public domain for coupling with floater program for FOWTs (Floating Offshore Wind Turbines)

    SciTech Connect

    Kim, MooHyun

    2014-08-01

    This report presents the development of offshore anchor data sets which are intended to be used to develop a database that allows preliminary selection and sizing of anchors for the conceptual design of floating offshore wind turbines (FOWTs). The study is part of a project entitled “Development of Mooring-Anchor Program in Public Domain for Coupling with Floater Program for FOWTs (Floating Offshore Wind Turbines)”, under the direction of Dr. Moo-Hyun Kim at the Texas A&M University and with the sponsorship from the US Department of Energy (Contract No. DE-EE0005479, CFDA # 81.087 for DE-FOA-0000415, Topic Area 1.3: Subsurface Mooring and Anchoring Dynamics Models).

  12. Concentric waves and short-period oscillations observed in the ionosphere after the 2013 Moore EF5 tornado

    NASA Astrophysics Data System (ADS)

    Nishioka, Michi; Tsugawa, Takuya; Kubota, Minoru; Ishii, Mamoru

    2013-11-01

    We detected clear concentric waves and short-period oscillations in the ionosphere after an Enhanced Fujita scale (EF)5 tornado hit Moore, Oklahoma, U.S., on 20 May 2013 using dense wide-coverage ionospheric total electron content (TEC) observations in North America. These concentric waves were nondispersive, with a horizontal wavelength of ~120 km and a period of ~13 min. They were observed for more than 7 h throughout North America. TEC oscillations with a period of ~4 min were also observed to the south of Moore for more than 8 h. A comparison between the TEC observations and infrared cloud image from the GOES satellite indicates that the concentric waves and short-period oscillations are caused by supercell-induced atmospheric gravity waves and acoustic resonances, respectively. This observational result provides the first clear evidence of a severe meteorological event causing atmospheric waves propagating upward in the upper atmosphere and reaching the ionosphere.

  13. Observation of oceanic heat flux to the sea ice using ice-tethered moorings: Canada Basin, Arctic Ocean

    NASA Astrophysics Data System (ADS)

    Ha, Ho Kyung; Yae Son, Eun; Park, Jae Hun; Cole, Sylvia; Park, Keyhong; Sul La, Hyoung

    2016-04-01

    It is important to figure out the physical mechanisms (e.g. shear, turbulence) below the sea ice, because of its direct influence on oceanic heat flux that is closely related to sea ice melt. A short-term (3.5 days) mooring was conducted in August 2014 to measure the vertical profiles of velocity, salinity and temperature within the sea-ice boundary layer. The mooring package consisted of an acoustic Doppler current profiler (ADCP) and 3 MicroCats. A long-term mooring of an ice-tethered profiler with modular acoustic velocity sensor (MAVS) was conducted to acquire vertical profiles of salinity, temperature, pressure and velocity in the marginal ice zone. The mooring data was analyzed to examine the role of the Pacific Summer Water (PSW) as a heat source, which can provide oceanic heat to the overlying layer. The ADCP data showed distinctive upper-velocity fields induced by entrainment of the sea ice. It appeared up to about 15 m depth during the entire observation period. Periodical components of MAVS data were extracted through wavelet transform. Since sea ice extent is relatively low in summer, the wind forcing could be effectively delivered in the form of a near 12 hours period oscillation to the 60 m depth where the PSW was occupying. Even in winter, while the sea surface was fully covered with the sea ice, near 12 hours period oscillation was appeared at 60 m depth. In September and January, strong 12 hours period oscillation appeared up to a deeper layer, which is deeper than 150 m depth where the wind forcing is hard to reach. The relationship between the heat flux and the oscillation strength will be discussed during the presentation.

  14. The upper-ocean response to typhoons as measured at a moored acoustic Doppler current profiler

    NASA Astrophysics Data System (ADS)

    Liu, Ze; Hou, Yijun; Xie, Qiang; Hu, Po; Liu, Yahao

    2015-09-01

    A moored acoustic Doppler current profiler (ADCP) data, satellite-derived sea surface wind data, and the chlorophyll- a concentration were used to examine the influence of typhoon events on the upper ocean in the central Luzon Strait. The data were collected between August 27 and October 6, 2011. Large changes in ocean dynamics and marine life were recorded in the upper layers over the short term during the transit of each of the three violent typhoons that passed over the region during the study period. The geostrophic flow during the period of ADCP monitoring was comparable to the Ekman flow, recently shown to be prominent in the upper layer. Based on the influence of the three typhoon events that swept the Luzon Strait or traversed Luzon Island on their way to the South China Sea, we postulated a typhoon-induced upwelling around the ADCP and found that upward isothermal displacements reached 11.8-39.0 m, which was confirmed by the sea-level anomaly data recorded at the same time. This variability in the upper ocean may play an important role in biological activity, especially in offshore deep-sea regions.

  15. Detection of Explosives in a Dynamic Marine Environment Using a Moored TNT Immunosensor

    PubMed Central

    Charles, Paul T.; Adams, André A.; Deschamps, Jeffrey R.; Veitch, Scott; Hanson, Al; Kusterbeck, Anne W.

    2014-01-01

    A field demonstration and longevity assessment for long-term monitoring of the explosive 2,4,6-trinitrotoluene (TNT) in a marine environment using an anti-TNT microfluidic immunosensor is described. The TNT immunosensor is comprised of a microfluidic device with 39 parallel microchannels (2.5 cm × 250 μm × 500 μm, L × W × D) fabricated in poly(methylmethacrylate) (PMMA), then chemically functionalized with antibodies possessing a high affinity for TNT. Synthesized fluorescence reporter complexes used in a displacement-based assay format were used for TNT identification. For field deployment the TNT immunosensor was configured onto a submersible moored steel frame along with frame controller, pumps and TNT plume generator and deployed pier side for intermittent plume sampling of TNT (1h increments). Under varying current and tidal conditions trace levels of TNT in natural seawater were detected over an extended period (>18 h). Overnight operation and data recording was monitored via a web interface. PMID:24583970

  16. Mooring observations of the thermal structure, salinity, and currents in the SE Bering Sea basin

    NASA Astrophysics Data System (ADS)

    Cokelet, E. D.; Stabeno, P. J.

    1997-10-01

    Utilizing recently developed deep-sea mooring technology, we present the first interannual time series measurements of the ocean temperature, salinity, and velocity fields in the Bering Sea basin. These were made during spring and summer of 1992 and 1993 and late winter to summer of 1994, in 2195 m of water. Results show a weak background flow of ˜5 cm/s with semidiurnal tides superimposed. Anticyclonic (clockwise) eddies pass by sporadically, inducing currents up to ˜80 cm/s and depressing the isopycnals and isotherms up to ˜200 m. The thermal structure in the upper 400 m shows a deep temperature maximum from warm Alaskan Stream inflows and a minimum above due to winter cooling. A sea surface cooling event was observed in the late winter of 1994, with cold water penetrating to ˜120-m depth. Spring warming begins in late April to early May of each year, marked by the arrival of the 3.75°C isotherm. The local wind plays little role in forcing ocean currents at the site except at the inertial frequency.

  17. Numerical characterization of non-Abelian Moore-Read state in the microscopic lattice boson model

    NASA Astrophysics Data System (ADS)

    Zhu, Wei; Gong, Shoushu; Haldane, F. D. M.; Sheng, D. N.

    2015-03-01

    Identifying the interacting systems that host the non-Abelian (NA) topological phases have attracted intense attention in physics. Theoretically, it is possible to realize the NA Moore-Read (MR) state in bosonic system or double-layer system by coupling two Abelian fractional quantum Hall (FQH) states together. Here, based on the density matrix renormalization group and exact diagonalization calculations, we study two such examples in the microscopic lattice models and investigate their NA nature. In the first example, we provide a thorough characterization of the universal properties of MR state on Haldane honeycomb lattice model, including both the edge spectrum and the bulk anyonic quasiparticle statistics. By inspecting the entanglement spectral response to the U (1) flux, it is found that two of Abelian ground states can be adiabatically connected through a charge unit quasiparticle pumping from one edge to the other. In the second example, we study a double-layer bosonic FQH system built from the π-flux lattice model. Some evidences of NA nature has been identified, including the groundstate degeneracy and finite drag Hall conductance. The numerical methods we developed here provides a useful and practical way for detecting the full information of NA topological order. This research is supported by the U.S. Department of Energy, Office of Basic Energy Sciences under Grant No. DE-FG02-06ER46305.

  18. Net community production and calcification from 7 years of NOAA Station Papa Mooring measurements

    NASA Astrophysics Data System (ADS)

    Fassbender, Andrea J.; Sabine, Christopher L.; Cronin, Meghan F.

    2016-02-01

    Seven years of near-continuous observations from the Ocean Station Papa (OSP) surface mooring were used to evaluate drivers of marine carbon cycling in the eastern subarctic Pacific. Processes contributing to mixed layer carbon inventory changes throughout each deployment year were quantitatively assessed using a time-dependent mass balance approach in which total alkalinity and dissolved inorganic carbon were used as tracers. By using two mixed layer carbon tracers, it was possible to isolate the influences of net community production (NCP) and calcification. Our results indicate that the annual NCP at OSP is 2 ± 1 mol C m-2 yr-1 and the annual calcification is 0.3 ± 0.3 mol C m-2 yr-1. Piecing together evidence for potentially significant dissolved organic carbon cycling in this region, we estimate a particulate inorganic carbon to particulate organic carbon ratio between 0.15 and 0.25. This is at least double the global average, adding to the growing evidence that calcifying organisms play an important role in carbon export at this location. These results, coupled with significant seasonality in the NCP, suggest that carbon cycling near OSP may be more complex than previously thought and highlight the importance of continuous observations for robust assessments of biogeochemical cycling.

  19. Spatial and temporal variation in efficiency of the Moore egg collector

    USGS Publications Warehouse

    Worthington, Thomas A.; Brewer, Shannon K.; Farless, Nicole

    2013-01-01

    The Moore egg collector (MEC) was developed for quantitative and nondestructive capture of semibuoyant fish eggs. Previous studies have indicated that capture efficiency of the MEC was low and the use of one device did not adequately represent the spatial distribution within the water column of egg surrogates (gellan beads) of pelagic broadcast-spawning cyprinids. The objective of this study was to assess whether use of multiple MECs showed differences in spatial and temporal distribution of bead catches. Capture efficiency of three MECs was tested at four 500-m sites on the South Canadian River, a Great Plains river in Oklahoma. For each trial, approximately 100,000 beads were released and mean capture efficiency was 0.47–2.16%. Kolmogorov–Smirnov tests indicated the spatial distributions of bead catches were different among multiple MECs at three of four sites. Temporal variability in timing of peak catches of gellan beads was also evident between MECs. We concluded that the use of multiple MECs is necessary to properly sample eggs of pelagic broadcast-spawning cyprinids.

  20. Health-hazard evaluation report HETA 90-370-2107, Moore Business Forms, Angola, Indiana

    SciTech Connect

    Decker, J.; Driscoll, R.

    1991-04-01

    In response to a request from Moore Business Forms (SIC-2752), Angola, Indiana, an evaluation was undertaken of reports of nausea, headaches, throat irritation, eye irritation, and aching joints in the Preliminary department. The company manufactured various forms for many customers. About 40 employees work in the department; activities include design and preparation of photolithographic plates, and plate preparation. Carbon-dioxide (124389) levels were between 450 and 825 parts per million (ppm). Relative humidities ranged from 36 to 50%, and temperatures ranged from 69 to 76 degrees-F. Methylene-chloride (75092) levels ranged from 1.81 to 9.69ppm. NIOSH recommends that levels of the contaminent be reduced as low as possible. The source of the contamination was the extensive use of a type cleaner solvent in a press area. The most prevalent symptoms reported were headache, metallic taste in the mouth, fatigue, nausea and joint pain. The authors conclude that a number of conditions in the Preliminary department may contribute to reported employee symptoms. A potential health hazard existed from exposure to methylene-chloride; an alternative solvent should be substituted. The authors recommend several measures to improve air quality at the site. These include increasing the make up air and humidification, relocating the exhausts and intakes on the roof, maintenance or replacement of an air conditioning unit, and modifications to some of the exhaust hoods.

  1. Functions of the cellular prion protein, the end of Moore's law, and Ockham's razor theory.

    PubMed

    del Río, José A; Gavín, Rosalina

    2016-01-01

    Since its discovery the cellular prion protein (encoded by the Prnp gene) has been associated with a large number of functions. The proposed functions rank from basic cellular processes such as cell cycle and survival to neural functions such as behavior and neuroprotection, following a pattern similar to that of Moore's law for electronics. In addition, particular interest is increasing in the participation of Prnp in neurodegeneration. However, in recent years a redefinition of these functions has begun, since examples of previously attributed functions were increasingly re-associated with other proteins. Most of these functions are linked to so-called "Prnp-flanking genes" that are close to the genomic locus of Prnp and which are present in the genome of some Prnp mouse models. In addition, their role in neuroprotection against convulsive insults has been confirmed in recent studies. Lastly, in recent years a large number of models indicating the participation of different domains of the protein in apoptosis have been uncovered. However, after more than 10 years of molecular dissection our view is that the simplest mechanistic model in PrP(C)-mediated cell death should be considered, as Ockham's razor theory suggested. PMID:26890218

  2. The Ashen Light of Venus: A century of observations by McEwen and Moore

    NASA Astrophysics Data System (ADS)

    McKim, R. J.; Moore, P. A.

    2007-10-01

    This paper is a catalogue and analysis of the Ashen Light sightings from two remarkably long series of Venus observations held in the BAA Mercury & Venus Section archives spanning 1892 to 1999. The records comprise overlapping series of visual records by the first two Directors of the Section, Henry McEwen and Patrick Moore. The Ashen Light was seen during 25 of the 56 adequately-observed elongations. By analysing the results in terms of the eight-year 'cycle' of Venus elongations we demonstrate that the Ashen Light's visibility does not simply depend upon terrestrial viewing conditions: those elongations that permitted Venus to be viewed at reasonable altitude against a dark sky were not the only occasions when the Light was well seen. At times the phenomenon can become especially conspicuous, as in 1953 and 1956 (when it was visible semi-continuously for more than a month), and in 1895, 1935, 1940, 1957, 1980 and 1988 (where there were fewer good sightings). There also exist long intervals where, despite excellent conditions and observational coverage, the Ashen Light has remained remarkably obscure.

  3. Solid state quantum computers: a nanoscopic solution to the Moore's law problem

    NASA Astrophysics Data System (ADS)

    Ng, Joseph; Abbott, Derek

    2001-03-01

    The computer industry has followed Moore's Law closely and faithfully over the past few decades. However, transistors cannot continue to shrink at their current rate forever, and new methods of computation must be explored. Quantum computation is one such method that has received much attention over the past few years and will heavily rely on technological advances in the smart electronics and nanotechnology arena. In this review, we will present some of the problems facing classical computers and why quantum computers may be a viable alternative. We will briefly describe some of the "killer" quantum applications, such as Deutsch's, Shor's and Grover's algorithms that demonstrate the computational powers of quantum computation. Kane's solid state quantum computer in silicon promises to demonstrate some of these applications. However there remain many significant technological difficulties which will need to be overcome if we are to see a useful quantum computer. The main technological challenges, for Kane's solid-state computer, of interest to the smart materials and structures community, will be highlighted.

  4. Observation of wind-waves from a moored buoy in the Southern Ocean

    NASA Astrophysics Data System (ADS)

    Rapizo, Henrique; Babanin, Alexander V.; Schulz, Eric; Hemer, Mark A.; Durrant, Tom H.

    2015-09-01

    The Southern Ocean is an important component in the global wave climate. However, owing to a lack of observations, our understanding of waves is poor compared to other regions. The Southern Ocean Flux Station (SOFS) has been deployed to fill this gap and represents the first successful moored air-sea flux station at these southern hemisphere latitudes. In this paper, we present for the first time the results from the analysis of the wave measurements, focused on statistics and extremes of the main wave parameters. Furthermore, a spectral characterization is performed regarding the number of wave systems and predominance of swell/wind-sea. Our results indicate a high consistency in terms of wave parameters for all deployments. The maximum significant wave height obtained in the 705 days of observation was 13.41 m. The main spectra found represent unimodal swell dominated cases; however, the dimensionless energy plotted against dimensionless peak frequency for these spectra follows a well-known relation for wind-sea conditions. In addition, the Centre for Australian Weather and Climate Research wave hindcast is validated with the SOFS data.

  5. A Long-term Temperature and Depth Logger for Ocean Mooring System

    SciTech Connect

    Xu, Xiaoyang; Tian, Chuan; Guo, Zhongwen; Deng, Zhiqun; Zhao, Wei

    2015-12-01

    Temperature, depth and conductivity (CTD) are the most essential physical properties of sea water. CTD instrument is one of the most efficient approaches for collecting the accurate ocean information. However, traditional CTD instruments are not best suited for applications that require high resolution data by a large number of sensors because of their large size and high cost. This paper describes the design of a compact, high-accuracy, and low-cost temperature and depth (TD) logger for ocean mooring system. The noise floor of the TD logger was evaluated in lab for determining the logger measurement resolution. A specific calibration method was implemented for pressure transducer calibration to eliminate the thermal affect. The initial temperature accuracy of the TD logger is ±0.002°C and the pressure accuracy is ±0.05% of full scale. The effective resolution is 0.0001°C and 0.001% full scale for temperature and pressure measurement, respectively. A 150 days off-shore experiment was also conducted to evaluate the stability of TD logger measurement.

  6. Autonomous Acoustic Receiver Deployment and Mooring Techniques for Use in Large Rivers and Estuaries

    SciTech Connect

    Titzler, P. Scott; McMichael, Geoffrey A.; Carter, Jessica A.

    2010-08-01

    Autonomous acoustic receivers are often deployed across a range of aquatic habitats to study aquatic species. The Juvenile Salmon Telemetry System autonomous acoustic receiver packages we deployed in the Columbia River and its estuary were comprised of an acoustic receiver, acoustic release, and mooring line sections and were deployed directly on the river bottom. Detection ranges and reception data from past optimization deployments helped determine acoustic receiver spacing in order to achieve acceptable detection probabilities for juvenile salmon survival estimation. Methods used in 2005, which resulted in a high equipment loss rate, were modified and used between 2006 and 2008 to increase crew safety and optimize receiver deployment and recovery operations in a large river system. By eliminating surface buoys and taglines (for anchor recovery), we experienced a recovery success rate greater than previous acoustic receiver deployment techniques used in the Columbia River and elsewhere. This autonomous acoustic receiver system has optimized deployment, recovery, and servicing efficiency to successfully detect acoustic-tagged salmonids in a variety of river environments.

  7. Deep water observations of extreme waves with moored and free GPS buoys

    NASA Astrophysics Data System (ADS)

    Waseda, Takuji; Sinchi, Masato; Kiyomatsu, Keiji; Nishida, Tomoya; Takahashi, Shunsuke; Asaumi, Sho; Kawai, Yoshimi; Tamura, Hitoshi; Miyazawa, Yasumasa

    2014-09-01

    Point-positioning GPS-based wave measurements were conducted by deep ocean (over 5,000 m) surface buoys moored in the North West Pacific Ocean in 2009, 2012, and 2013. The observed surface elevation bears statistical characteristics of Gaussian, spectrally narrow ocean waves. The tail of the averaged spectrum follows the frequency to the power of -4 slope, and the significant wave height and period satisfies the Toba's 3/2 law. The observations compare well with a numerical wave hindcast. Two large freak waves exceeding 13 m in height were observed in October 2009 and three extreme waves around 20 m in height were observed in October 2012 and in January 2013. These extreme events are associated with passages of a typhoon and a mid-latitude cyclone. Horizontal movement of the buoy revealed that the orbital motion of the waves at the peak of the wave group mostly exceed the weakly nonlinear estimate. For some cases, the orbital velocity exceeded the group velocity, which might indicate a breaking event but is not conclusive yet.

  8. Detection of explosives in a dynamic marine environment using a moored TNT immunosensor.

    PubMed

    Charles, Paul T; Adams, André A; Deschamps, Jeffrey R; Veitch, Scott; Hanson, Al; Kusterbeck, Anne W

    2014-01-01

    A field demonstration and longevity assessment for long-term monitoring of the explosive 2,4,6-trinitrotoluene (TNT) in a marine environment using an anti-TNT microfluidic immunosensor is described. The TNT immunosensor is comprised of a microfluidic device with 39 parallel microchannels (2.5 cm × 250 µm × 500 µm, L × W × D) fabricated in poly(methylmethacrylate) (PMMA), then chemically functionalized with antibodies possessing a high affinity for TNT. Synthesized fluorescence reporter complexes used in a displacement-based assay format were used for TNT identification. For field deployment the TNT immunosensor was configured onto a submersible moored steel frame along with frame controller, pumps and TNT plume generator and deployed pier side for intermittent plume sampling of TNT (1h increments). Under varying current and tidal conditions trace levels of TNT in natural seawater were detected over an extended period (>18 h). Overnight operation and data recording was monitored via a web interface. PMID:24583970

  9. Functions of the cellular prion protein, the end of Moore's law, and Ockham's razor theory

    PubMed Central

    del Río, José A.; Gavín, Rosalina

    2016-01-01

    ABSTRACT Since its discovery the cellular prion protein (encoded by the Prnp gene) has been associated with a large number of functions. The proposed functions rank from basic cellular processes such as cell cycle and survival to neural functions such as behavior and neuroprotection, following a pattern similar to that of Moore's law for electronics. In addition, particular interest is increasing in the participation of Prnp in neurodegeneration. However, in recent years a redefinition of these functions has begun, since examples of previously attributed functions were increasingly re-associated with other proteins. Most of these functions are linked to so-called “Prnp-flanking genes” that are close to the genomic locus of Prnp and which are present in the genome of some Prnp mouse models. In addition, their role in neuroprotection against convulsive insults has been confirmed in recent studies. Lastly, in recent years a large number of models indicating the participation of different domains of the protein in apoptosis have been uncovered. However, after more than 10 years of molecular dissection our view is that the simplest mechanistic model in PrPC-mediated cell death should be considered, as Ockham's razor theory suggested. PMID:26890218

  10. Mooring apparatus and method of installation for deep water tension leg platform

    SciTech Connect

    Hunter, A.F.; Bozeman, J.D.

    1989-07-18

    This patent describes a one-piece prefabricated tendon for mooring a tension leg platform to the ocean floor in water depths of up to 3000 feet. The tendon comprises: an upper tubular coupling section having a first relatively large wall thickness and a first relatively small outer tubular diameter; a central tubular section which extends over a substantial majority of the length of the tendon, the central tubular section having a second relatively thin wall thickness and a second relatively large outer tubular diameter, the second relatively thin wall section having sufficient strength to withstand both tendon tension loads and compressive forces imposed by the ocean; a lower tubular coupling section having a third relatively large wall, thickness and a third relatively small outer tubular diameter; each of the upper, central and lower tubular sections being comprised of a plurality of segments that are welded into a unitary tendon; buoyancy means integrated into the one-piece tendon such that the tendon is, at least, substantially neutrally buoyant.

  11. Tropical Moored Buoy Arrays To Advance Climate Science: A 30-Year Progress Report (Fridtjof Nansen Medal Lecture)

    NASA Astrophysics Data System (ADS)

    McPhaden, Michael J.

    2010-05-01

    Coupled ocean-atmosphere interactions in the tropics lead to significant climate fluctuations such as El Niño and the Southern Oscillation in the Pacific, the Indian Ocean Dipole, and the Atlantic meridional gradient mode. These and other prominent climate phenomena originating in the tropics on seasonal to decadal time scales affect regional and global patterns of weather variability. Associated floods, droughts, heat waves and other extreme weather events have significant socio-economic consequences that affect millions of people worldwide. This presentation describes a coordinated multi-national effort to develop tropical moored buoy arrays in support of climate research and forecasting. Basin specific components include the Tropical Atmosphere Ocean/Triangle Trans-Ocean Buoy Network (TAO/TRITON) in the Pacific, the Prediction and Research Moored Array in the Tropical Atlantic (PIRATA), and the Research Moored Array for African-Asian-Australian Monsoon Analysis and Prediction (RAMA) in the Indian Ocean. These arrays, the origins of which date back to the early 1980s, complement other satellite and in situ elements of the Global Ocean Observing System by providing high temporal resolution time series of key environmental parameters in real time. This presentation will feature a discussion of historical perspectives, recent scientific advances, and future directions in the development of the arrays.

  12. Temperature at a mooring in Northern South China Sea and its connection with surface heat flux, wind and eddies

    NASA Astrophysics Data System (ADS)

    Lin, Y.; Oey, L. Y.; Huang, S. M.; Yang, Y.; Liu, K. K.

    2014-12-01

    Twenty-two month temperature profile (from surface to z = -500m) at a mooring located west-southwest about 450 km from the Luzon Strait in northern South China Sea (NSCS) is analyzed in conjunction with altimetry, CCMP wind, and mixed-layer model forced by the NCEP surface heat flux. EOF [Kutzbach 1967 J. App. Met], SVD [Bretherton et al 1992, J. Clim] and EMD [Huang et al 1998, Proc. Roy Soc] methods are used to separate and identify different physical processes and mechanisms. The dominant fluctuation at the mooring is shown to be seasonal, caused (1) by seasonal surface fluxes and local Ekman pumping (on the f-plane) by the wind stress curl, (2) by eddies emanated west of the Luzon Strait spun up by wind stress curl west of Luzon, and (3) by Rossby waves due to Kuroshio path fluctuations in the Strait. Meso-scale eddies are embedded in the seasonal variation and they are shown to be locally generated by baroclinic instability and penetrate through the entire depth of the mooring.

  13. Investigation of a FAST-OrcaFlex Coupling Module for Integrating Turbine and Mooring Dynamics of Offshore Floating Wind Turbines: Preprint

    SciTech Connect

    Masciola, M.; Robertson, A.; Jonkman, J.; Driscoll, F.

    2011-10-01

    To enable offshore floating wind turbine design, the following are required: accurate modeling of the wind turbine structural dynamics, aerodynamics, platform hydrodynamics, a mooring system, and control algorithms. Mooring and anchor design can appreciably affect the dynamic response of offshore wind platforms that are subject to environmental loads. From an engineering perspective, system behavior and line loads must be studied well to ensure the overall design is fit for the intended purpose. FAST (Fatigue, Aerodynamics, Structures and Turbulence) is a comprehensive simulation tool used for modeling land-based and offshore wind turbines. In the case of a floating turbine, continuous cable theory is used to emulate mooring line dynamics. Higher modeling fidelity can be gained through the use of finite element mooring theory. This can be achieved through the FASTlink coupling module, which couples FAST with OrcaFlex, a commercial simulation tool used for modeling mooring line dynamics. In this application, FAST is responsible for capturing the aerodynamic loads and flexure of the wind turbine and its tower, and OrcaFlex models the mooring line and hydrodynamic effects below the water surface. This paper investigates the accuracy and stability of the FAST/OrcaFlex coupling operation.

  14. Conflict of spatial development and water supply under climate change in case of water dependent ecosystem of Ljubljana Moor

    NASA Astrophysics Data System (ADS)

    Bračič Železnik, Branka; Souvent, Petra; Čenčur Curk, Barbara

    2013-04-01

    Water resources are vulnerable to climate change and to many other socio-economic drivers of change. A key aspect of vulnerability is that it is spatially variable, reflecting variations of physical and socio-economic conditions. Given the real representation of vulnerability and a set of climate change adaptation options there is need to develop a common transnational strategy for vulnerability reduction. The latter is the goal of SEE CC-WARE project. Among others, ecosystem services, land use change, improving water use efficiency and economic incentives for water management have large potentials to decrease water resources vulnerability. Especially, forests, wetlands and grasslands are important ecosystems, which together with their management emerged as an important means for a sustainable future drinking water supply. The Ljubljana Moor is one of the biggest and most important complexes of wet meadows in Slovenia, which have, due to land use high biodiversity. The Ljubljana Moor extends from the southern part of Ljubljana, the capital of Slovenia, where in the last two centuries extensive irrigation and river regulation projects were implemented to develop agricultural land. Biodiversity of the area is high due to large zones of wet meadows, some flood forest patches, bog areas, and open water courses habitats. The Ljubljana Moor is therefore protected as Natura 2000 site. The Ljubljana Moor is changing very fast and impacts are especially intense in the present years, mostly due to spreading of urbanization and monocultures. In this area the water well field Brest has been designed as important future drinking water source for Ljubljana, pumping mainly water from confined aquifer. The pressure from urbanisation and agriculture and high subsidence that are noticed in the central and eastern part of the aquifer, those two phenomena pose high risk to stable drinking water supply and wetland habitats that are protected as NATURA 2000. Water protection areas with

  15. Adaptive divergence of the moor frog (Rana arvalis) along an acidification gradient

    PubMed Central

    2011-01-01

    Background Environmental stress can result in strong ecological and evolutionary effects on natural populations, but to what extent it drives adaptive divergence of natural populations is little explored. We used common garden experiments to study adaptive divergence in embryonic and larval fitness traits (embryonic survival, larval growth, and age and size at metamorphosis) in eight moor frog, Rana arvalis, populations inhabiting an acidification gradient (breeding pond pH 4.0 to 7.5) in southwestern Sweden. Embryos were raised until hatching at three (pH 4.0, 4.3 and 7.5) and larvae until metamorphosis at two (pH 4.3 and 7.5) pH treatments. To get insight into the putative selective agents along this environmental gradient, we measured relevant abiotic and biotic environmental variables from each breeding pond, and used linear models to test for phenotype-environment correlations. Results We found that acid origin populations had higher embryonic and larval acid tolerance (survival and larval period were less negatively affected by low pH), higher larval growth but slower larval development rates, and metamorphosed at a larger size. The phenotype-environment correlations revealed that divergence in embryonic acid tolerance and metamorphic size correlated most strongly with breeding pond pH, whereas divergence in larval period and larval growth correlated most strongly with latitude and predator density, respectively. Conclusion Our results suggest that R. arvalis has diverged in response to pH mediated selection along this acidification gradient. However, as latitude and pH were closely spatially correlated in this study, further studies are needed to disentangle the specific agents of natural selection along acidification gradients. Our study highlights the need to consider the multiple interacting selective forces that drive adaptive divergence of natural populations along environmental stress gradients. PMID:22182445

  16. An autonomous instrument for time series analysis of TCO 2 from oceanographic moorings

    NASA Astrophysics Data System (ADS)

    Sayles, F. L.; Eck, Calvert

    2009-09-01

    The design and testing of a robotic analyzer for autonomous TCO 2 measurement from oceanographic moorings is described. The analyzer employs a conductimetric method of TCO 2 measurement wherein CO 2 from an acidified sample diffuses across a semi-permeable membrane into a NaOH solution decreasing the conductivity of the base. The instrument is capable of ˜850 analyses over a period of at least six months. It is designed to operate to depths of at least 1000 m. TCO 2 calibration is based on in situ standardization throughout a deployment. We report both laboratory and in situ tests of the analyzer. In the laboratory automated analyses over a period of 38 days at temperatures ranging from 8° to 25 °C yielded a TCO 2 accuracy and precision of ±2.7 μmol/kg. In situ tests were conducted at the WHOI dock with a deployment of 8 weeks at in situ temperatures of 5°-13 °C. The accuracy and precision of TCO 2 analyses over the deployment period, based on in situ calibration, was ±3.6 μmol/kg. Laboratory tests of reagent and standard solution stability are also reported. Standards, based on Certified Reference Material were followed for periods of up to 2 years. In all cases TCO 2 increased. Drift of the standards was the equivalent of ˜1 to 3 μmol/kg per 6 months. The conductivity indicator solution was found to be stable for at least 2 months.

  17. Deepwater overflow observed by three bottom-anchored moorings in the Bashi Channel

    NASA Astrophysics Data System (ADS)

    Zhao, Xiaolong; Zhou, Chun; Zhao, Wei; Tian, Jiwei; Xu, Xiaobiao

    2016-04-01

    Three moorings equipped with 10 current meters and 7 CTDs were deployed in the Bashi Channel, the main deep connection between the northwestern Pacific Ocean and the South China Sea, from August 2010 to April 2011 to investigate the deepwater overflow of the North Pacific Deep Water through it. Results from these observations provide, for the first time, valuable information on the spatial structure of the deep current and allow us to estimate the overflow transport with greater accuracy. The observed current is coherent both vertically and horizontally but exhibits a much stronger velocity in the central area compared to near the edges of the channel. The core of the overflow is found near 2600 m, with mean velocity, potential temperature, and salinity of 22.5 cm s-1, 1.79 °C, and 34.64 psu, respectively. The current is approximately geostrophic, with isopycnals sloping upward to the right-hand side of the flow. The local Froude number is found much less than 1, implying that the deep flow in the Bashi Channel could not be hydraulically controlled. The observations yield an 8-month mean transport of 0.78 Sv with an rms error of 0.18 Sv. The transport time series exhibits significant intraseasonal variabilities, including variability on time scale close to the resonance period of the deep channel in the Luzon Strait (~30 days). Higher transports are connected with a higher velocity and a thicker overflow layer, allowing colder and saltier (thus denser) North Pacific Deep Water to flow into the South China Sea.

  18. Moored observations of episodic abyssal flow and mixing at station ALOHA

    NASA Astrophysics Data System (ADS)

    Alford, M. H.; Lukas, Roger; Howe, Bruce; Pickering, Andy; Santiago-Mandujano, Fernando

    2011-08-01

    Moored measurements of abyssal velocity and temperature are presented with a focus on episodic cold overflow events first observed by Lukas et al. (2001) in the Hawaii Ocean Time-series (HOT), a 23-year-long time series of ≈ monthly CTD profiles at station ALOHA (22.75°N, 158°W). Three major cold events were observed in our 2.5-year record, of which we present one in detail. The event appeared in two pulses spaced by about two weeks, wherein potential temperature anomaly was <-0.015°C over the bottom 600 m. Flow was about 10 cms-1 to the southwest, confirming earlier interpretations of the events as overflows from the Maui deep to the east. Between the two pulses, flow veered to the northwest, possibly associated with seiching. Speed decreased rapidly below the sill depth (≈4625) m, suggesting sheltering by the basin walls. The associated shear, even smoothed over 200 m and not including internal waves, was nearly unstable to Kelvin-Helmholtz instability. During this period, a large mixed region was observed wherein the lower 240 m was homogenized, remaining so for 14 hours (1.2 buoyancy periods). From Thorpe scale analysis, the implied diffusivity of the event was (0.5-4.5) × 10-1m2s-1. No other overturning events greater than 50 m high were observed in the record, suggesting that abyssal mixing is strongly intermittent. We suggest that such intermittency in abyssal mixing and flow is likely the rule rather than the exception, calling for more highly temporally resolved observations.

  19. Rise of chemical amplification resists from laboratory curiosity to paradigm enabling Moore's Law

    NASA Astrophysics Data System (ADS)

    Ito, Hiroshi

    2008-03-01

    The concept of chemical amplification resists was proposed from IBM Research about 25 years ago. Although initially considered laboratory curiosity even within IBM, the tBOC resist based on acid-catalyzed deprotection was employed in a negative mode in mass production of 1 Mbit DRAMs by deep UV lithography in IBM in the mid 80's. Development of positive 248 nm resists faced a devastating postexposure delay problem, which threatened the future of chemical amplification resists. Tracing the cause to contamination of the resist film surface with airborne basic substances resulted in development of environmentally stable resist systems, which cemented the industry-wide acceptance of chemical amplification resists, enabling the semiconductor industry to follow the Moore's law. The migration from 248 to 193 nm necessitated abandonment of the etch-resistant but absorbing phenolic structure and introduction of alicyclic structures for transparency and etch resistance. Several platforms were developed, including polymethacrylates, all-norbornene systems, cycloolefin-maleic anhydride co- and terpolymers (COMA), and vinyl ether-maleic anhydride (VEMA) systems. Replacement of phenol with carboxylic acid for transparency and aqueous base development resulted in swelling. Lactones were incorporated to increase the polarity of hydrophobic alicyclic polymers. Hexafluoroalcohol was introduced to replace carboxylic acid and became employed ubiquitously in 157 nm resists, for transparency and base development. Although 157 nm lithography has been abandoned, the fluoroalcohol group has been heavily utilized in dry and wet 193 nm resists and immersion topcoats, and as additives for surface segregation. The chemical amplification resists initially developed for 1 μm patterning can now print <30 nm features. The question is how far chemical amplification resists can go in terms of resolution, maintaining sensitivity (or even increasing the sensitivity) while improving line edge

  20. Natural organic matter and iron export from the Tanner Moor, Austria

    PubMed Central

    Jirsa, Franz; Neubauer, Elisabeth; Kittinger, Richard; Hofmann, Thilo; Krachler, Regina; von der Kammer, Frank; Keppler, Bernhard K.

    2013-01-01

    Samples from a pristine raised peat bog runoff in Austria, the Tannermoor creek, were analysed for their iron linked to natural organic matter (NOM) content. Dissolved organic carbon < 0.45 μm (DOC) was 41–64 mg L−1, iron 4.4–5.5 mg L−1. Samples were analysed applying asymmetric field flow fractionation (AsFlFFF) coupled to UV–vis absorption, fluorescence and inductively coupled plasma mass spectrometry (ICP-MS). The samples showed an iron peak associated with the NOM peak, one sample exhibiting a second peak of iron independent from the NOM peak. As highland peat bogs with similar climatic conditions and vegetation to the Tanner Moor are found throughout the world, including areas adjacent to the sea, we examined the behaviour of NOM and iron in samples brought to euhaline (35‰) conditions with artificial sea salt. The enhanced ionic strength reduced NOM by 53% and iron by 82%. Size exclusion chromatography (SEC) of the samples at sea-like salinity revealed two major fractions of NOM associated with different iron concentrations. The larger one, eluting sharply after the upper exclusion limits of 4000–5000 g mol−1, seems to be most important for iron chelating. The results outline the global importance of sub-mountainous and mountainous raised peat bogs as a source of iron chelators to the marine environment at sites where such peat bogs release their run-offs into the sea. PMID:23805012

  1. Validation of Aquarius sea surface salinity with in situ measurements from Argo floats and moored buoys

    NASA Astrophysics Data System (ADS)

    Tang, Wenqing; Yueh, Simon H.; Fore, Alexander G.; Hayashi, Akiko

    2014-09-01

    We validate sea surface salinity (SSS) retrieved from Aquarius instrument on SAC-D satellite with in situ measurements by Argo floats and moored buoy arrays. We assess the error structure of three Aquarius SSS products: the standard product processed by Aquarius Data Processing System (ADPS) and two data sets produced at the Jet Propulsion Laboratory (JPL): the Combined Active-Passive algorithm with and without rain correction, CAP and CAP_RC, respectively. We examine the effect of various filters to prevent unreliable point retrievals from entering Level 3 averaging, such as land or ice contamination, radio frequency interference (RFI), and cold water. Our analyses show that Aquarius SSS agrees well with Argo in a monthly average sense between 40°S and 40°N except in the Eastern Pacific Fresh Pool and Amazon River outflow. Buoy data within these regions show excellent agreement with Aquarius but have discrepancies with the Argo gridded products. Possible reasons include strong near-surface stratification and sampling problems in Argo in regions with significant western boundary currents. We observe large root-mean-square (RMS) difference and systematic negative bias between ADPS and Argo in the tropical Indian Ocean and along the Southern Pacific Convergence Zone. Excluding these regions removes the suspicious seasonal peak in the monthly RMS difference between the Aquarius SSS products and Argo. Between 40°S and 40°N, the RMS difference for CAP is less than 0.22 PSU for all 28 months, CAP_RC has essentially met the monthly 0.2 PSU accuracy requirement, while that for ADPS fluctuates between 0.22 and 0.3 PSU.

  2. Moored observation of abyssal flow and temperature near a hydrothermal vent on the Southwest Indian Ridge

    NASA Astrophysics Data System (ADS)

    Liao, Guanghong; Zhou, Beifeng; Liang, Chujin; Zhou, Huaiyang; Ding, Tao; Wang, Yuan; Dong, Changming

    2016-01-01

    Four moorings were deployed near "Dragon Flag," an active hydrothermal vent in the valley of the Southwest Indian Ridge. The goal was to examine the variability of currents and temperature, which will guide the trajectory of spreading plumes. The mean current was cross-isobath, and the circulation was characterized by a submesoscale circulation. Observed currents also showed fluctuations with periods of 1-15 days. The inferred phase speed and wavelength for the wave with a period of 4.4 day are 10.4 km d-1 and 45.8km, respectively, which are consistent with the topographic Rossby wave theory. The persistent warming tendency with corresponding variation of salinity based on background θ-S properties may be caused by background circulation and divergence of the water column. The warming or cooling episodes were most likely as signatures of isopycnal surface depression or uplifting induced by the moving of mesoscale eddies. Well-resolved rotary spectra exhibited important nonlinear interactions between inertial and semidiurnal tide in the velocity and temperature records. Amplification of near-inertial currents in the near bottom is also exposed. These discoveries provided new evidence for the nonlinear interaction and trapped near-inertial waves by the ridge, which occurred in the deep ocean of the Southern Hemisphere. Such nonlinear interaction may represent a significant energy loss pathway for the internal waves, and part of the decay of such motion would likely result in increased mixing to maintain the abyssal stratification. Enhanced near-inertial motions can play a major role for the local advection of hydrothermal plumes.

  3. Validation of Ocean Color Remote Sensing Data using a Moored Databuoy

    NASA Technical Reports Server (NTRS)

    Lavender, Samantha; Pinkerton, Matthew

    2000-01-01

    NASA's Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) aims to measure global ocean color from space to within 5% to provide insights into fundamental ocean processes. SeaWiFS must be backed by comprehensive calibration and validation programs if the mission is to achieve this. In situ measurements of normalized water-leaving radiance (L(sub wn)) made simultaneously with satellite measurements can complement on-orbit methods of tracking changes in the calibration of the satellite radiometer and allow end-to-end vicarious validation of the remotely-sensed data. A moored optical databuoy was developed at Plymouth Marine Laboratory, UK to measure L(sub wn) in the western English Channel. Tests indicate that the buoy is capable of measuring spectral incident irradiance with less than 10% error and water-leaving radiance with less than 20% error; these errors are reduced by averaging and show no bias. There were 24 match-ups with good quality SeaWiFS data at the buoy site during the ten months of deployment within the period May 1997 and September 1998. The differences between the buoy and SeaWiFS measurements of L(sub wn) were found to be variable and often large. The root-mean-square (RMS) differences varied from 102% at 412 nm to 50% at 555 nm. The RMS differences in measurements of L(sub wn) could be reduced to less than 18% by a combination of increasing the calibration coefficients of SeaWiFS by between 0.2 and 4.3% in the visible bands and by tuning the extrapolation of aerosol radiances from the near infrared to the visible wavelengths. These results imply that the monitoring of the absolute calibration of the SeaWiFS bands is imperfect and errors remain in the extrapolation of aerosol radiances for atmospheric correction.

  4. Upstream sources of the Denmark Strait Overflow: Observations from a high-resolution mooring array

    NASA Astrophysics Data System (ADS)

    Harden, B. E.; Pickart, R. S.; Valdimarsson, Héðinn; Våge, Kjetil; de Steur, Laura; Richards, Clark; Bahr, Frank; Torres, Dan; Børve, Eli; Jónsson, Steingrímur; Macrander, Andreas; Østerhus, Svein; Håvik, Lisbeth; Hattermann, Tore

    2016-06-01

    We present the first results from a densely instrumented mooring array upstream of the Denmark Strait sill, extending from the Iceland shelfbreak to the Greenland shelf. The array was deployed from September 2011 to July 2012, and captured the vast majority of overflow water denser than 27.8 kg m-3 approaching the sill. The mean transport of overflow water over the length of the deployment was 3.54±0.16 Sv. Of this, 0.58 Sv originated from below sill depth, revealing that aspiration takes place in Denmark Strait. We confirm the presence of two main sources of overflow water: one approaching the sill in the East Greenland Current and the other via the North Icelandic Jet. Using an objective technique based on the hydrographic properties of the water, the transports of these two sources are found to be 2.54±0.17 Sv and 1.00±0.17 Sv, respectively. We further partition the East Greenland Current source into that carried by the shelfbreak jet (1.50±0.16 Sv) versus that transported by a separated branch of the current on the Iceland slope (1.04±0.15 Sv). Over the course of the year the total overflow transport is more consistent than the transport in either branch; compensation takes place among the pathways that maintains a stable total overflow transport. This is especially true for the two East Greenland Current branches whose transports vary out of phase with each other on weekly and longer time scales. We argue that wind forcing plays a role in this partitioning.

  5. The new European Competence Centre for Moor and Climate - A European initiative for practical peat bog and climate protection

    NASA Astrophysics Data System (ADS)

    Smidt, Geerd; Tänzer, Detlef

    2013-04-01

    The new European Competence Centre for Moor and Climate (EFMK) is an initiative by different local communities, environmental protection NGOs, agricultural services, and partners from the peat and other industries in Lower Saxony (Germany). The Centre aims to integrate practical peat bog conservation with a focus on green house gas emission after drainage and after water logging activities. Together with our partners we want to break new ground to protect the remaining bogs in the region. Sphagnum mosses will be produced in paludiculture on-site in cooperation with the local peat industry to provide economic and ecologic alternatives for peat products used in horticulture business. Land-use changes are needed in the region and will be stimulated in cooperation with agricultural services via compensation money transfers from environmental protection funds. On a global scale the ideas of Carbon Credit System have to be discussed to protect the peat bogs for climate protection issues. Environmental education is an important pillar of the EFMK. The local society is invited to explore the unique ecosystem and to participate in peat bog protection activities. Future generations will be taught to understand that the health of our peat bogs is interrelated with the health of the local and global climate. Besides extracurricular classes for schools the centre will provide infrastructure for Master and PhD students, as well for senior researchers for applied research in the surrounding moor. International partners in the scientific and practical fields of peat bog ecology, renaturation, green house gas emissions from peat bogs, and environmental policy are invited to participate in the European Competence Center for Moor and Climate.

  6. Validation of HF Radar ocean surface currents in the Ibiza Channel using lagrangian drifters, moored current meter and underwater gliders

    NASA Astrophysics Data System (ADS)

    Lana, Arancha; Fernández, Vicente; Orfila, Alejandro; Troupin, Charles; Tintoré, Joaquín

    2015-04-01

    SOCIB High Frequency (HF) radar is one component of a multi-platform system located in the Balearic Islands and made up of Lagrangian platforms (profilers and drifting buoys), fixed stations (sea-level, weather, mooring and coastal), beach monitoring (camera), gliders, a research vessel as well as an ocean forecast system (waves and hydrodynamics). The HF radar system overlooks the Ibiza Channel, known as a 'choke point" where Atlantic and Mediterranean water masses interact and where meridional exchanges of water mass properties between the Balearic and the Algerian sub-basins take place. In order to determine the reliability of surface velocity measurements in this area, a quality assessment of the HF Radar is essential. We present the results of several validation experiments performed in the Ibiza Channel in 2013 and 2014. Of particular interest is an experiment started in September 2014 when a set of 13 surface drifters with different shapes and drogue lengths were released in the area covered by the HF radar. The drifter trajectories can be examined following the SOCIB Deployment Application (DAPP): http://apps.socib.es/dapp. Additionally, a 1-year long time series of surface currents obtained from a moored surface current-meter located in the Ibiza Channel, inside the area covered by the HF radar, was also used as a useful complementary validation exercise. Direct comparison between both radial surface currents from each radar station and total derived velocities against drifters and moored current meter velocities provides an assessment of the HF radar data quality at different temporal periods and geographical areas. Statistics from these comparisons give good correlation and low root-mean-square deviation. The results will be discussed for different months, geographical areas and types of surface drifters and wind exposure. Moreover, autonomous underwater glider constitutes an additional source of information for the validation of the observed velocity

  7. Accuracy in GPS/Acoustic positioning on a moored buoy moving around far from the optimal position

    NASA Astrophysics Data System (ADS)

    Imano, M.; Kido, M.; Ohta, Y.; Takahashi, N.; Fukuda, T.; Ochi, H.; Hino, R.

    2015-12-01

    For detecting the seafloor crustal deformation and Tsunami associated with large earthquakes in real-time, it is necessary to monitor them just above the possible source region. For this purpose, we have been dedicated in developing a real-time continuous observation system using a multi-purpose moored buoy. Sea-trials of the system have been carried out near the Nanakai trough in 2013 and 2014 (Takahashi et al., 2014). We especially focused on the GPS/Acoustic measurement (GPS/A) in the system for horizontal crustal movement. The GPS/A on a moored buoy has a critical drawback compared to the traditional ones, in which the data can be stacked over ranging points fixed at an optimal position. Accuracy in positioning with a single ranging from an arbitrary point is the subject to be improved in this study. Here, we report the positioning results in the buoy system using data in the 2014 sea-trial and demonstrate the improvement of the result. We also address the potential resolving power in the positioning using synthetic tests. The target GPS/A site consists of six seafloor transponders (PXPs) forming a small inner- and a large outer-triangles. The bottom of the moored cable is anchored nearly the center of the triangles. In the sea-trial, 11 times successive ranging was scheduled once a week, and we plotted positioning results from different buoy position. We confirmed that scatter in positioning using six PXPs simultaneously is ten times smaller than that using individual triangle separately. Next, we modified the definition of the PXP array geometry using data obtained in a campaign observation. Definition of an array geometry is insensitive as far as ranging is made in the same position, however, severely affects the positioning when ranging is made from various positions like the moored buoy. The modified PXP array is slightly smaller and 2m deeper than the original one. We found that the scatter of positioning results in the sea-trial is reduced from 4m to 1

  8. The Tangled Tale of Genes and Environment: Moore's The Dependent Gene: The Fallacy of “nature VS. Nurture”

    PubMed Central

    Schneider, Susan M

    2007-01-01

    Nature–nurture views that smack of genetic determinism remain prevalent. Yet, the increasing knowledge base shows ever more clearly that environmental factors and genes form a fully interactional system at all levels. Moore's book covers the major topics of discovery and dispute, including behavior genetics and the twin studies, developmental psychobiology, and developmental systems theory. Knowledge of this larger life-sciences context for behavior principles will become increasingly important as the full complexity of gene–environment relations is revealed. Behavior analysis both contributes to and gains from the larger battle for the recognition of how nature and nurture really work.

  9. Observing Coastal Upwelling Front Dynamics by AUV Tracking, Remote Sensing, and Mooring Measurements

    NASA Astrophysics Data System (ADS)

    Zhang, Y.; Ryan, J. P.; Godin, M. A.; Bellingham, J. G.

    2012-12-01

    Coastal upwelling is a wind-driven ocean process that brings cooler, saltier, and usually nutrient-rich deep water upward to replace surface water displaced offshore due to Ekman transport. The nutrients carried up by upwelling are important for primary production and fisheries. The boundary between the stratified water column and the upwelling water column is called the "upwelling front". Upwelling fronts support enriched phytoplankton and zooplankton populations, thus having great influences on ocean ecosystems. Variations of wind and ocean circulation cause an upwelling front to move. In particular, as the upwelling favorable wind weakens, upwelling enters the relaxation phase. Frontal dynamics in this phase is not well understood. Satellite sea surface temperature (SST) images can show evolutions of upwelling fronts, but only their surface expressions. To enable in situ high-resolution tracking of upwelling frontal dynamics, we have developed a method for an autonomous underwater vehicle (AUV) to autonomously detect and track an upwelling front over a long duration. During the June 2012 CANON (Controlled, Agile, and Novel Observing Network) field program, the Tethys long-range AUV ran our algorithm to closely track an upwelling front in northern Monterey Bay over four days. The AUV tracking captured the front's westward movement. A series of satellite SST images show that the stratified water in the upwelling shadow (residing in the northeastern corner of the Bay) was transported westward, thus pushing the upwelling front westward. The westward movement of the upwelling filament followed weakening of the northwesterly wind (i.e., upwelling favorable wind). The AUV observations offered a window into frontal dynamics in the relaxation phase of the upwelling process. Temperature, salinity, and current velocity profiles measured at the MBARI M1 mooring (to the south of the AUV tracking line) showed that the westward frontal movement coincided with intrusion of

  10. Long-term moored array measurements of currents and hydrography over Georges Bank: 1994-1999

    NASA Astrophysics Data System (ADS)

    Brink, K. H.; Beardsley, R. C.; Limeburner, R.; Irish, J. D.; Caruso, M.

    2009-09-01

    In conjunction with the GLOBEC (Global Ocean Ecosystems Dynamics) program, measurements of moored currents, temperature and salinity were made during 1994-1999 at locations in 76 m of water along the southern flank of Georges Bank and at the Northeastern Peak. The measurements concentrate on the biologically crucial winter and spring periods, and coverage during the fall is usually poorer. Current time series were completely dominated by the semidiurnal M 2 tidal component, while other tidal species (including the diurnal K 1 component) were also important. There was a substantial wind-driven component of the flow, which was linked, especially during the summer, to regional-scale response patterns. The current response at the Northeast Peak was especially strong in the 3-4 days period band, and this response is shown to be related to an amplifying topographic wave propagating eastward along the northern flank. Monthly mean flows on the southern flank are southwestward throughout the year, but strongest in the summertime. The observed tendency for summertime maximum along-bank flow to occur at depth is rationalized in terms of density gradients associated with a near-surface freshwater tongue wrapping around the Bank. Temperature and salinity time series demonstrate the presence, altogether about 25% of the time, of a number of intruding water masses. These intrusions could last anywhere from a couple days up to about a month. The sources of these intrusions can be broadly classified as the Scotian Shelf (especially during the winter), the Western Gulf of Maine (especially during the summer), and the deeper ocean south of Georges Bank (throughout the year). On longer time scales, the temperature variability is dominated by seasonal temperature changes. During the spring and summer, these changes are balanced by local heating or cooling, but wintertime cooling involves advective lateral transports as well. Salinity variations have weak, if any, seasonal variability

  11. The influence of aeration and temperature on the structure of bacterial complexes in high-moor peat soil

    NASA Astrophysics Data System (ADS)

    Kukharenko, O. S.; Pavlova, N. S.; Dobrovol'Skaya, T. G.; Golovchenko, A. V.; Pochatkova, T. N.; Zenova, G. M.; Zvyagintsev, D. G.

    2010-05-01

    The number and taxonomic structure of the heterotrophic block of aerobic and facultative anaerobic bacteria were studied in monoliths from a high-moor peat (stored at room temperature and in a refrigerator) and in the peat horizons mixed in laboratory vessels. The monitoring lasted for a year. In the T0 horizon, spirilla predominated at room and low temperatures; in the T1 and T2 horizons, bacilli were the dominants. The continuous mixing of the peat layers increased the oxygen concentration and the peat decomposition; hence, the shares of actinomycetes and bacilli (bacteria of the hydrolytic complex) increased. In the peat studied, the bacilli were in the active state; i.e., vegetative cells predominated, whose amount ranged from 65 to 90%. The representatives of the main species of bacilli (the facultative anaerobic forms prevailed) hydrolyzed starch, pectin, and carboxymethylcellulose. Thus, precisely sporiferous bacteria can actively participate in the decomposition of plant polysaccharides in high-moor peat soils that are characterized by low temperatures and an oxygen deficit. The development of actinomycetes is inhibited by low temperatures; they can develop only under elevated temperature and better aeration.

  12. Is It Time to Phase Out the Austin Moore Hemiarthroplasty? A Propensity Score Matched Case Control Comparison versus Cemented Hemiarthroplasty

    PubMed Central

    Liu, Rui-Ping; Lau, Tak-Wing; Leung, Anderson; Wong, Tak-Man; Pun, Terence

    2016-01-01

    We compared the Austin Moore hemiarthroplasty versus cemented hemiarthroplasties using a propensity score matched cased control study. For a consecutive cohort of 450 patients with displaced intracapsular neck of femur fractures, 128 matched cases in each group were selected based on age, gender, walking status, nursing home residency, delays in surgery, ASA score, and the Charlson comorbidity score. At a mean follow-up of 16.3 months, we evaluated their outcomes. Significantly more patients with AMA experienced thigh pain (RR = 3.5, 95% CI: 1.67–7.33,  p = 0.000), overall complications (RR = 4.47, 95% CI: 1.77–11.3, p = 0.000), and implant loosening (RR = 8.42, 95% CI: 2.63–26.95, p = 0.000). There were no definite cement related deaths in this series. There was no significant difference in mortality, walking status, and the number of revisions between the groups. We support the routine use of cemented hemiarthroplasty instead of the Austin Moore for treating elderlies with displaced intracapsular neck of femur fractures. PMID:27042669

  13. A thin layer of phytoplankton observed in the Philippine Sea with a synthetic moored array of autonomous gliders

    NASA Astrophysics Data System (ADS)

    Hodges, Benjamin A.; Fratantoni, David M.

    2009-10-01

    A synthetic moored array composed of five buoyancy-propelled autonomous underwater gliders was used to characterize mesoscale variability and phytoplankton distribution in a 100 km × 100 km domain in the Philippine Sea east of Luzon Strait for 10 days in May 2004. The study area, located east of the Kuroshio near the subtropical front, is dominated by strong internal tides, by energetic westward-propagating mesoscale eddies with azimuthal velocities exceeding 50 cm/s, and by a deep (130 m) maximum in chlorophyll fluorescence. Each glider in the array was instructed to maintain geographic position while repeatedly profiling to 200-m depth. Good station-keeping performance enabled the resulting series of vertical profiles to be interpreted in the same manner as a physically moored chain of instruments. Although organized primarily as a demonstration of glider capabilities, this field exercise provides a unique data set for examining biological-physical interactions in the open ocean. Here we report on the evolution of a thin layer of phytoplankton observed near the deep chlorophyll maximum. Coincident observations of fine structure in temperature and salinity suggest that the thinning process of this layer was driven primarily by physical forcing, most probably vertical shear associated with energetic diurnal internal waves, as opposed to a biological mechanism, such as convergent swimming, grazing, or spatial variation in growth rate.

  14. Experimental Comparison of Dynamic Responses of a Tension Moored Floating Wind Turbine Platform with and without Spring Dampers

    NASA Astrophysics Data System (ADS)

    Wright, C.; O'Sullivan, K.; Murphy, J.; Pakrashi, V.

    2015-07-01

    The offshore wind industry is rapidly maturing and is now expanding to more extreme environments in deeper water and farther from shore. To date fixed foundation types (i.e. monopoles, jackets) have been primarily used but become uneconomical in water depths greater than 50m. Floating foundations have more complex dynamics but at the moment no design has reached commercialization, although a number of devices are being tested at prototype stage. The development of concepts is carried out through physical model testing of scaled devices such that to better understand the dynamics of the system and validate numerical models. This paper investigates the testing of a scale model of a tension moored wind turbine at two different scales and in the presence and absence of a spring damper controlling its dynamic response. The models were tested under combined wave and wind thrust loading conditions. The analysis compares the motions of the platform at different scales and structural conditions through RAO, testing a mooring spring damper for load reductions.

  15. Propagation of coastally trapped waves in the Northern Benguela studied with hydrographic moorings and a regional circulation model

    NASA Astrophysics Data System (ADS)

    Siegfried, Lydia; Junker, Tim; Mohrholz, Volker; Schmidt, Martin; van der Plas, Anja

    2015-04-01

    Upwelling in the Northern Benguela is mainly driven by local winds but nutrient and oxygen conditions on the shelf are largely determined by the intrusion of South Atlantic Central Water (SACW) through the Angola-Benguela Front (ABF). The poleward spreading of tropical waters is related to the propagation of Kelvin and continental shelf waves originating from the Equatorial Atlantic and bending poleward at the African coast. The strength of this remote forcing is thought to be especially relevant to the interannual variability of the upwelling system. We test the hypothesis that the poleward spreading of tropical water is driven by the combined action of both I) coastally trapped waves of equatorial origin bringing tropical water to the ABF zone and II) locally forced waves generating the undercurrent which advects SACW onto the shelf. Signals of poleward propagating waves were found in satellite altimeter data up to 12°S. To detect the propagation of coastally trapped waves further south in-situ measurements have been conducted. Three hydrographic moorings equipped inter alia with ADCPs have been deployed and maintained within the framework of the projects GENUS, SACUS and PREFACE. For the first time, simultaneous current measurements on the Namibian shelf have been realized at three different positions. The moorings are located in the Cunene cell, the Northern Namibian cell and the Central Namibian cell. By means of a regional circulation model based on MOM the propagation of coastally trapped waves are investigated with high spatial and temporal resolution (about 8km along the Namibian coast, 2-hour averages). It has been demonstrated that modelled meridional transports correspond well with long term measurements obtained by a mooring off Walvis Bay. The power spectral density shows sharp peaks for the tidal and inertial frequencies. A large proportion of kinetic energy accounts for the sub-inertial frequency range. Meridional transport signals were found to

  16. 33 CFR 150.445 - When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water? 150.445 Section 150.445 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: OPERATIONS Cargo Transfer Operations §...

  17. 33 CFR 150.445 - When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... mooring-oil transfer system (SPM-OTS) displaced with water? 150.445 Section 150.445 Navigation and...-OTS) displaced with water? (a) The oil in an SPM-OTS must be displaced with water, and the valve at... section is waived if port officials can demonstrate to the Officer in Charge of Marine Inspection that...

  18. 33 CFR 150.445 - When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water? 150.445 Section 150.445 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: OPERATIONS Cargo Transfer Operations §...

  19. 33 CFR 150.445 - When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water? 150.445 Section 150.445 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: OPERATIONS Cargo Transfer Operations §...

  20. Characterization of Mamey Sapote (Pouteria sapota [Jacq.] H.E. Moore & Stearn.) germplasm at the USDA-ARS Tropical Agriculture Research Station

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The mamey sapote (Pouteria sapota [Jacq.] H.E. Moore & Stearn) is a tropical tree fruit in the Sapotaceae, which is native to Central America and southern Mexico. The tree is used for timber and shade; however it is the sweet, nutrient and vitamin rich fruit that is eaten out of hand, in milkshakes...

  1. Examination of the vocal fold activity using ultra high speed filming: archival recordings by Paul Moore and Hans von Leden

    NASA Astrophysics Data System (ADS)

    Izdebski, Krzysztof; Vaughan, Laura

    2012-02-01

    We present excerpts from three archival ultra high-speed films on the function of the human larynx by Paul Moore, Ph. D. and Hans von Leden, M.D. The films received two awards for best scientific cinematography from two different international film festivals in Italy in 1957. These films present ultra high-speed cinematographic accounts on the workings of the human vocal folds during various phonatory and ventilatory activities. These films were captured at speeds of 2000 to 5000 frames-per-second via an ingeniously arranged laryngeal mirror viewing device. Such speeds were revolutionary six decades ago. Technology currently allows us to film laryngeal behavior at speeds of up to 16,000 frames-per-second using digital recordings. However, the ultra high-speed films by Paul and Hans remain a beacon for anyone sincerely interested in how the smallest instrument of sound production works, and how it is subjected to failure by intrinsic or extrinsic factors.

  2. Mapping near-inertial variability in the SE Bay of Biscay from HF radar data and two offshore moored buoys

    NASA Astrophysics Data System (ADS)

    Rubio, A.; Reverdin, G.; Fontán, A.; González, M.; Mader, J.

    2011-10-01

    HF radar surface current data together with data from two operational offshore oceanographic buoys located over the slope are used to map the variability associated with the near-inertial waves, during a target year (2009), in the SE Bay of Biscay. The results obtained show the complex 4D distribution of inertial oscillations in this area. We find a very pronounced horizontal structure across the area with ranges of a factor 5 in near-inertial kinetic energy. This pattern presents also strong seasonal variability, with a peak in KE closer to the shelf-break in summer, whereas winter maximum is weaker and located further to the north-east. The mooring data indicate more trapping near the surface in summer. These patterns are discussed in relation to the known seasonal differences in atmospheric/buoyancy forcing and the characteristics of the sub-inertial surface velocity field.

  3. Time-domain simulation for coupled motions of three barges moored side-by-side in floatover operation

    NASA Astrophysics Data System (ADS)

    Xu, Xin; Yang, Jian-min; Li, Xin; Xu, Liang-yu

    2015-04-01

    Simulating the coupled motions of multiple bodies in the time domain is a complex problem because of the strong hydrodynamic interactions and coupled effect of various mechanical connectors. In this study, we investigate the hydrodynamic responses of three barges moored side-by-side in a floatover operation in the frequency and time domains. In the frequency domain, the damping lid method is adopted to improve the overestimated hydrodynamic coefficients calculated from conventional potential flow theory. A time-domain computing program based on potential flow theory and impulse theory is compiled for analyses that consider multibody hydrodynamic interactions and mechanical effects from lines and fenders. Correspondingly, an experiment is carried out for comparison with the numerical results. All statistics, time series, and power density spectra from decay and irregular wave tests are in a fairly good agreement.

  4. Mooring-Based Observations of Boundary Current in the Nansen Basin of the Arctic Ocean: Vertical Structure and Variability

    NASA Astrophysics Data System (ADS)

    Pnyushkov, A.; Polyakov, I.

    2010-12-01

    The pan-Arctic Boundary Current (BC) provides the largest input of water, heat, and salt into the Polar Basins. Recent mooring-based observations at several locations along the continental slope of the Arctic Ocean’s Eurasian Basin showed a transformation of the BC from a mostly barotropic flow in Fram Strait to a jet-like baroclinic current northeast of Svalbard, and the reemergence of the barotropic structure of the flow further along in the eastern Eurasian Basin. The speed maximum of the baroclinic jet-like BC segment coincides with the Atlantic Water core at an intermediate depth (~200-370 m). Strongly amplified current events with corresponding changes in T and S are associated with eddies which are an integral part of the BC. Vertical velocity shear of tidal/inertial oscillations is an important contributor to mixing in the BC region. This new information is critically important to understand the ocean's role in the arctic climate system.

  5. Influence of moisture on the vital activity of actinomycetes in a cultivated low-moor peat soil

    NASA Astrophysics Data System (ADS)

    Zenova, G. M.; Gryadunova, A. A.; Doroshenko, E. A.; Likhacheva, A. A.; Sudnitsyn, I. I.; Pochatkova, T. N.; Zvyagintsev, D. G.

    2007-05-01

    It was found that the actinomycetal complex of a cultivated low-moor peat soil is characterized by a high population density and diversity of actinomycetes; representatives of eleven genera were isolated from this soil: Streptomyces, Micromonospora, Actinomadura, Saccharopolyspora, Microbispora, Microtetraspora, Streptosporangium, Nocardioides, Saccharomonospora, Kibdelosporangium, and Thermomonospora. Some genera were isolated from the soil under all the studied levels of soil moisture. The so-called rare (rarely occurring) genera (Saccharomonospora, Kibdelosporangium, and Thermomonospora) were isolated upon the low level of soil moisture, which ensured an absence of competition from the more abundant actinomycetes. Spores of all the studied actinomycetes could germinate under the low moisture level (a w = 0.67). The level of moisture a w = 0.98 was found to be optimal for the development of the actinomycetes. The complete cycle of the development of all the actinomycetes up to spore formation occurring was only observed under the high moisture level (a w = 0.98).

  6. Inhibitory effects of Stephania tetrandra S. Moore on free radical-induced lysis of rat red blood cells.

    PubMed

    Sekiya, Nobuyasu; Hikiami, Hiroaki; Yokoyama, Koichi; Kouta, Kazufumi; Sakakibara, Iwao; Shimada, Yutaka; Terasawa, Katsutoshi

    2005-04-01

    Crude preparations of Stephania tetrandra S. MOORE (ST), a traditional herbal medicine, have been used safely for arthritis and silicosis in China. In this study, we demonstrated that ST in vitro protects red blood cells from 2,2-azo-bis (2-amidinopropane) dihydrochloride (AAPH)-induced hemolysis. The inhibitory effect was dose-dependent at concentrations of 10 to 1000 microg/ml. Moreover, tests were carried out to identify the main ingredient of ST that exerts a scavenging effect on free-radicals. Three representative alkaloids, tetrandrine, fangchinoline, and cyclanoline, isolated from ST, were found to have inhibitory activities against AAPH-induced lysis of red blood cells (RBC). Furthermore, the ingestion of 200 mg of ST extract was associated with a significant increase in free-radical scavenging effect of plasma in rats. These results suggest that ST as antioxidant inhibits AAPH-induced hemolysis of RBC both in vitro and in vivo. PMID:15802807

  7. The role of advection in the distribution of plankton populations at a moored 1-D coastal observatory

    NASA Astrophysics Data System (ADS)

    Cross, Jaimie; Nimmo-Smith, W. Alex M.; Hosegood, Philip J.; Torres, Ricardo

    2015-09-01

    The degree to which advection modulates the distribution of plankton populations at a 1-D coastal observatory was assessed at station L4 in the western English Channel (50°15‧N 4°13‧W, depth 50 m), part of the Western Channel Observatory (WCO). Five tidal-cycle surveys were conducted, three in spring and two in summer 2010. Observations of the physical characteristics of L4 were obtained by using a moored acoustic doppler current profiler (ADCP) and a free-falling microstructure sensor (MSS). The moored ADCP highlighted the presence of vertical shear, with typical values of U during spring tides of ∼0.5 m s-1 at the surface and ∼0.2 m s-1 at the bed. The distribution of phyto- and zooplankton populations above a size threshold of 200 μm were examined using an in-line holographic imaging system, the Holocam. Variability in time as well as depth is a common feature throughout each of the surveys, with examples of recorded numbers of phytoplankton that ranged between 1300 L-1 and 2300 L-1 at the same depth but at different points within the tidal cycle. Further, at the same points in the tidal cycle the number of recorded zooplankton was also seen to vary, specifically with the identification of gelatinous planula in spring that increased the observed number to maximums of between 140 L-1 and 220 L-1 in the upper layer, considerably higher that the corresponding WP-2 net counts for a similar period. Specific aspects of the movement and transfer of plankton relating to advection and interaction with the pycnocline are identified, both across tidal cycles and seasons.

  8. Deep-water sediment transport processes in the northeastern South China Sea: Mooring and shipboard-based observations

    NASA Astrophysics Data System (ADS)

    Liu, Z.; Zhao, Y.; Zhang, Y.; Li, J.; Li, X.; Wang, W.; Xu, J.

    2013-12-01

    Six moorings equipped with acoustic doppler current profiler (ADCP), recording current meter (RCM), and sediment trap have been deployed in the northeastern South China Sea at water depths ranging from 1700-3900 m to collect time-series data that can hopefully help better characterize the bottom current system and transport process in the region. Shipboard-based measurements including CTD, transmissometer, optical backscatter (OBS), and in-situ layered suspended particle sampling using large volume pump (LVP) were undertaken along three deep-water transects in the region during two cruises in the spring of 2012 and 2013. Preliminary results show for the first time the presence of continuous and relative stable contour currents and widespread deep-water nepheloid layers in the deep South China Sea. The contour currents flow southwestwards with average speeds of 2-4 cm/s (occasionally up to 11 cm/s) along lower slope of the northern South China Sea at depths of 1700-2500 m. The large-scale sediment waves recorded by high-resolution multibeam bathymetry appear to be related to activities of the contour currents. Intermediate and bottom nepheloid layers with an average suspended particle concentration of 0.6 mg/l are extended from the lower slope to the deep basin of the South China Sea. The intermediate nepheloid layers in depths ranging from 900 to 1100 m are thought to be controlled mainly by the interaction between the North Pacific Intermediate Water and the Pacific Deep Water masses. A sedimentary core (MD01-2905) previously collected on the sediment drift of ODP Site 1144, where three of the mooring systems are located, indicates that 60% of total fine-grained terrigenous sediment budget since the last glacial time have sourced from Taiwan. Our data suggest that the observed contour currents are the major carrier for transporting Taiwan-derived sediments to the northern slope of the South China Sea.

  9. Analyses of surface and groundwater flow characteristics of the Ljubljana moor and water resources vulnerability to climate and land use change and groundwater overdraft

    NASA Astrophysics Data System (ADS)

    Globevnik, Lidija; Bracic Zeleznik, Branka

    2016-04-01

    One of the biggest water resource of Slovenian capital is groundwater of Ljubljana moor (Ljubljansko barje) aquifer. Quantity and quality of groundwater in Ljubljana moor aquifer directly depend on precipitation, surface water and riparian ecosystems of the Moor and indirectly by groundwater recharge from higher-lying mountainous karstic areas of forests and grasslands. Maintaining high groundwater level of the Ljubljana moor not only sustain stable water balance of aquifer, but also its riparian and wetland character. It also inhibit larger subsidence of the terrain. The paper addresses the vulnerability of the Ljubljana moor water resources to climate and land use change and due to groundwater overdraft. The results should help in selecting suitable mitigation measures and management of the Ljubljana moor area. We analyze surface and groundwater flow characteristics of water recharge area of one water work on the Ljubljana moor (Brest) from the point of view of climate change, changes in land use and water pumping practices. The I\\vska River, a tributary to the Ljubljanica River, recharges the area in the gravel bar, which lies just below the hills. We use existing data of meteorological, hydrological and hydrogeological monitoring and simulate rainfall-runoff processes. We use a conceptual semi-distributed rainfall-runoff model HBV-Light and simulate hydrological characteristics of the Ljubljana Moor (groundwater level fluctuations and recharge, surface - groundwater interchange) with two hydrodynamic models, DHI MIKE FLOOD (surface flow, 2D simulation) and DHI MIKE SHE (groundwater flow). For a calibration of runoff model HBV Light and MIKE SHE we use measured daily discharge data of the river I\\vska (1970-2010) and groundwater level data along the river (2010-2013) respectively. In groundwater modelling, we include the data of water pumping. Daily precipitation and temperature for period 2020 - 2050 are from ESAMBLE project for two GCM climate scenarios. We

  10. CDIAC data management and archival support for a high-frequency atmospheric and seawater pCO2 data set from 14 open ocean moorings

    NASA Astrophysics Data System (ADS)

    Kozyr, Alex; Sutton, Adrienne; Sabine, Christopher

    2015-04-01

    Rising atmospheric carbon dioxide (CO2) and climate change are increasing ocean temperatures and affecting ocean chemistry (e.g., ocean acidification). Monitoring these important changes using ships and other platforms generates large amounts of data from heterogenous sources. Since its inception in 1993, when it became a member of the DOE/NOAA Ocean Carbon Science Team engaged in the World Ocean Circulation Experiment (WOCE), the CDIAC Ocean Carbon Data Management Project has been organizing, quality assuring, documenting, archiving and distributing ocean carbon-related data collected via a number of U.S. and international ocean-observing programs. CDIAC's ocean carbon data collection includes discrete and underway measurements from a variety of platforms (e.g., research ships, commercial ships, buoys) in all oceans from the surface to seafloor. One important project at CDIAC is the data management support for the Global CO2 Time-series and Moorings Project. This poster will describe the collaboration between NOAA/PMEL Mooring group and CDIAC in the data management and archival of a high-frequency atmospheric and seawater pCO2 data from 14 open ocean sites using moored autonomous systems.. Advancements in the ocean carbon observation network over the last decade, such as the development and deployment of Moored Autonomous pCO2 (MAPCO2) systems, have dramatically improved our ability to characterize ocean climate, sea-air gas exchange, and biogeochemical processes. The Moored Autonomous pCO2 (MAPCO2) system provides high-resolution surface seawater and atmospheric CO2 data that can help us understand inter-annual, seasonal, and sub-seasonal dynamics and provide constrains on the impact of short-term biogeochemical variability on CO2 fluxes. CDIAC NDP-092 provides a description of the data as well as the methods and data quality control involved in developing an open-ocean MAPCO2 data set including over 100,000 individual atmospheric and seawater pCO2 measurements

  11. Seismic airgun sounds recorded on moored hydrophones near the Mid-Atlantic Ridge and East Pacific Rise

    NASA Astrophysics Data System (ADS)

    Mellinger, D. K.; Nieukirk, S. L.; Dziak, R. P.; Haxel, J. H.; Fox, C. G.

    2003-12-01

    Sounds of seismic airguns were detected in two years of data collected from large, remote areas near the Mid-Atlantic Ridge (MAR) and the East Pacific Rise (EPR). From February 1999-February 2001, six autonomous hydrophones were moored near the MAR between 15-35 N and 33-50 W, and six more were moored in the EPR between 8 N - 8 S and 95-110 W. Continuous acoustic data recovered from both arrays were examined for sounds associated with seismic airgun activity. This was done using an automatic detection algorithm designed to identify repetitive sounds in the 20-60 Hz band. Airgun impulses occurred every 10-20 s and were recorded frequently on all hydrophones. In the Atlantic, airgun activity peaked in the summer months, and airgun impulses were detected in nearly 100% of the hours examined; Pacific seasonal trends were less obvious. Because of the high source level of the airgun signals, it was possible to estimate the locations of ships conducting seismic surveys despite their great distance, often over 3,000 km from our array. In the Atlantic, we located seismic vessels, presumably commercial, working off the coast of Nova Scotia during summer, and off western Africa and northeast Brazil in spring, summer,and fall. During summer 1999, research airguns were recorded on the MAR near 26 N 50 W. In the eastern tropical Pacific, the predominant source of airgun sounds was seismic vessels in the nearshore waters of southern Ecuador and northern Peru. All of the areas in which intense airgun activity was detected include important habitat for marine mammals; one area included habitat of the critically endangered northern right whale. Sounds from airguns appear to be a major contributor to the sound field in the Atlantic and parts of the Pacific Ocean, and may be of concern given the recent interest in ocean noise and its effects on marine mammals. Acoustic pressure levels of earthquakes are also investigated, and received levels in some common marine mammal habitats are

  12. Three species of land leeches from Taiwan, Haemadipsa rjukjuana comb. n., a new record for Haemadipsa picta Moore, and an updated description of Tritetrabdella taiwana (Oka)

    PubMed Central

    Lai, Yi-Te; Nakano, Takafumi; Chen, Jiun-Hong

    2011-01-01

    Abstract Three species of land leeches, including a new combination Haemadipsa rjukjuana comb. n., a new record for Haemadipsa picta Moore, as well as an updated description for Tritetrabdella taiwana (Oka), are reported in this study. Morphological characters and DNA barcode analysis were used to identify these species. In addition, since Haemadipsa rjukjuana had been regarded as a variety of the Japanese land leech Haemadipsa japonica for a century, morphological differences between these two species were also compared. PMID:22259307

  13. Mooring observations of equatorial currents in the upper 1000 m of the western Pacific Ocean during 2014

    NASA Astrophysics Data System (ADS)

    Wang, Fan; Wang, Jianing; Guan, Cong; Ma, Qiang; Zhang, Dongxiao

    2016-06-01

    Time-depth variations of the equatorial currents over the upper 1000 m depth in the western Pacific Ocean were directly measured by acoustic Doppler current profiler moorings at 2°N, 140°E and 4.7°N, 140°E during January-August 2014. Intraseasonal variations of the equatorial currents, with periods of 37-73 days, were observed encompassing the North Equatorial Countercurrent (NECC), northern branch of the South Equatorial Current (SEC), Equatorial Undercurrent (EUC), Equatorial Intermediate Current (EIC), North Intermediate Countercurrent (NICC), and North Equatorial Subsurface Current (NESC). Compared with previous studies based mainly on shipboard synoptic surveys, the 8-month time series of velocity profiles provided direct evidence for the existence of NESC, captured reversals of the EIC in May and the NESC in June from westward to eastward direction, and revealed larger vertical extensions of the SEC and NESC and greater depths of the EIC and NICC than previously thought. According to a global analysis product of ocean surface current, during January-April 2014, the NECC was located around its southernmost position and with its the weakest intensity over the past 20 years. Some of the anomalous characteristics of these flows may be related to the fickle El Niño of 2014.

  14. Topological characterization of the non-Abelian Moore-Read state using density-matrix renormalization group

    NASA Astrophysics Data System (ADS)

    Zhu, W.; Gong, S. S.; Haldane, F. D. M.; Sheng, D. N.

    2015-10-01

    The non-Abelian topological order has attracted a lot of attention for its fundamental importance and exciting prospect of topological quantum computation. However, explicit demonstration or identification of the non-Abelian states and the associated statistics in a microscopic model is very challenging. Here, based on a density-matrix renormalization-group calculation, we provide a complete characterization of the universal properties of the bosonic Moore-Read state on a Haldane honeycomb lattice model at filling number ν =1 for larger systems, including both the edge spectrum and the bulk anyonic quasiparticle (QP) statistics. We first demonstrate that there are three degenerating ground states for each of which there is a definite anyonic flux threading through the cylinder. We identify the nontrivial countings for the entanglement spectrum in accordance with the corresponding conformal field theory. Through simulating a flux-inserting experiment, it is found that two of the Abelian ground states can be adiabatically connected, whereas the ground state in the Ising anyon sector evolves back to itself, which reveals the fusion rules between different QPs in real space. Furthermore, we calculate the modular matrices S and U , which contain all the information for the anyonic QPs, such as quantum dimensions, fusion rule, and topological spins.

  15. Antifungal activity and acute toxicity of stem bark extracts of Drypetes gossweileri S. Moore-euphorbiaceae from Cameroon.

    PubMed

    Ngouana, Vincent; Fokou, Patrick Valère Tsouh; Foudjo, Brice Ulrich Saha; Ngouela, Silvère Augustin; Boyom, Fabrice Fekam; Zollo, Paul Henri Amvam

    2011-01-01

    Drypetes gossweilleri S. Moore is a plant used in traditional medicine in Cameroon. The antifungal properties of its stem-bark crude extract and fractions DG(1), DG(2), DG(3), DG(4), DG(5), DG(6), DG(7), DG(8) and DG(9) were assayed by agar and broth dilution methods on solid and liquid media against C. Krusei, C. albicans, C. glabrata, T. mentagerophytes, M. langeroinii, M. gypeum, M. audouini, T. rubrum, T. soudanense, T. terrestre, A. flavus and A. niger. The results revealed a substantial antifungal effect with minimal inhibitory concentrations ranging respectively from 24.11µg/ml to 1562µg/ml for yeasts and from 3125µg/ml to 12500µg/ml for filamentous fungi. Among the fractions, fraction DG4 exerted the highest antifungal activity. Moreover, no toxic effect was noticed in male and female albinos Wistar rats treated per os with the crude stem bark's extract of Drypetes gossweileri at a dose up to 12g/kg of body weight. The phytochemical screening of the crude extract and fractions showed the presence of alkaloids, phenols, flavonoids, saponins, anthocyanines, anthraquinones, sterols, lipids and essential oils. Therefore, Drypetes gossweileri may be safe as phytomedecine for the treatment of fungal infections. PMID:22468013

  16. Multifarious selection through environmental change: acidity and predator-mediated adaptive divergence in the moor frog (Rana arvalis).

    PubMed

    Egea-Serrano, Andrés; Hangartner, Sandra; Laurila, Anssi; Räsänen, Katja

    2014-04-01

    Environmental change can simultaneously cause abiotic stress and alter biological communities, yet adaptation of natural populations to co-changing environmental factors is poorly understood. We studied adaptation to acid and predator stress in six moor frog (Rana arvalis) populations along an acidification gradient, where abundance of invertebrate predators increases with increasing acidity of R. arvalis breeding ponds. First, we quantified divergence among the populations in anti-predator traits (behaviour and morphology) at different rearing conditions in the laboratory (factorial combinations of acid or neutral pH and the presence or the absence of a caged predator). Second, we evaluated relative fitness (survival) of the populations by exposing tadpoles from the different rearing conditions to predation by free-ranging dragonfly larvae. We found that morphological defences (relative tail depth) as well as survival of tadpoles under predation increased with increasing pond acidity (under most experimental conditions). Tail depth and larval size mediated survival differences among populations, but the contribution of trait divergence to survival was strongly dependent on prior rearing conditions. Our results indicate that R. arvalis populations are adapted to the elevated predator pressure in acidified ponds and emphasize the importance of multifarious selection via both direct (here: pH) and indirect (here: predators) environmental changes. PMID:24552840

  17. Methodological issues in the validation of implicit measures: comment on De Houwer, Teige-Mocigemba, Spruyt, and Moors (2009).

    PubMed

    Gawronski, Bertram; Lebel, Etienne P; Peters, Kurt R; Banse, Rainer

    2009-05-01

    J. De Houwer, S. Teige-Mocigemba, A. Spruyt, and A. Moors's normative analysis of implicit measures provides an excellent clarification of several conceptual ambiguities surrounding the validation and use of implicit measures. The current comment discusses an important, yet unacknowledged, implication of J. De Houwer et al.'s analysis, namely, that investigations addressing the proposed implicitness criterion (i.e., does the relevant psychological attribute influence measurement outcomes in an automatic fashion?) will be susceptible to fundamental misinterpretations if they are conducted independently of the proposed what criterion (i.e., is the measurement outcome causally produced by the psychological attribute the measurement procedure was designed to assess?). As a solution, it is proposed that experimental validation studies should be combined with a correlational approach in order to determine whether a given manipulation influenced measurement scores via variations in the relevant psychological attribute or via secondary sources of systematic variance. (PsycINFO Database Record (c) 2009 APA, all rights reserved). PMID:19379019

  18. Observed oceanic response to tropical cyclone Jal from a moored buoy in the south-western Bay of Bengal

    NASA Astrophysics Data System (ADS)

    Girishkumar, M. S.; Suprit, K.; Chiranjivi, Jayaram; Udaya Bhaskar, T. V. S.; Ravichandran, M.; Shesu, R. Venkat; Pattabhi Rama Rao, E.

    2014-03-01

    Upper oceanographic and surface meteorological time-series observations from a moored buoy located at 9.98°N, 88°E in the south-western Bay of Bengal (BoB) were used to quantify variability in upper ocean, forced by a tropical cyclone (TC) Jal during November 2010. Before the passage of TC Jal, salinity and temperature profiles showed a typical BoB post-monsoon structure with relatively warm (30 °C) and low-saline (32.8 psu) waters in the upper 30- to 40-m layer, and relatively cooler and higher salinity (35 psu) waters below. After the passage of cyclone, an abrupt increase of 1 psu (decrease of 1 °C) in salinity (temperature) in the near-surface layers (up to 40-m depth) was observed from buoy measurements, which persisted up to 10-12 days during the relaxation stage of cyclone. Mixed layer heat budget analysis showed that vertical processes are the dominant contributors towards the observed cooling. The net surface heat flux and horizontal advection together contributed approximately 33 % of observed cooling, during TC Jal forced stage. Analysis showed the existence of strong inertial oscillation in the thermocline region and currents with periodicity of ˜2.8 days. During the relaxation stage of the cyclone, upward movement of thermocline in near-inertial frequencies played significant role in mixed layer temperature and salinity variability, by much freer turbulent exchange between the mixed layer and thermocline.

  19. Evaluating the Effects of Clouds on Solar and Longwave Radiation From Moored Buoys in the North Pacific

    NASA Astrophysics Data System (ADS)

    Balmes, K.; Cronin, M. F.

    2014-12-01

    Clouds play a critical role in the ocean surface radiation balance, along with the solar zenith angle and the atmospheric moisture and aerosol content. Two moored buoys in the North Pacific - KEO (32.3°N, 144.6°E) and Papa (50°N, 145°W) - continuously measure solar and longwave radiation and other atmospheric and oceanic variables through two redundant systems. After identifying the primary system and constructing daily clear sky solar and longwave radiation values, the seasonal and regional clouds effects are quantified for the two locations. Situated south of the Kuroshio Extension, significant moisture content variability, associated with the Asian monsoon, affects solar and longwave radiation and cloud effects at KEO. Less seasonal variability is observed at buoy Papa located in the Gulf of Alaska. At KEO, the negative solar radiation cloud forcing outweigh the positive longwave radiation cloud forcing leading to ocean cooling, particularly in the summer. At Papa, the longwave radiation cloud forcing counteracts the solar cloud forcing during the winter, subsequently warming the ocean. The regional and seasonal variability of clouds represents a difficult aspect of climate modeling and an area for further research.

  20. Using a Clean Energy Version of Moore's Law to Plan for the Extreme Efficiency of the Future

    NASA Astrophysics Data System (ADS)

    van Buskirk, Robert

    2014-03-01

    In 1965, Gordon Moore predicted a decade of exponential growth in the transistor density growth (and hence computing power) for integrated circuits that--with some modification--has held to the present day. In this talk, we discuss to what extent clean energy technologies are subject to similar laws of long term exponential improvement and how these improvement rates may be accelerating due to recent developments. We review a range of long term energy efficiency and technology productivity improvement trends ranging from lighting, televisions, refrigerators, HVAC, batteries, motors, power electronics and solar PV. After reviewing historical and recent trends, we discuss several factors that may lead to an acceleration of improvement rates in the clean energy technology sector. Finally, we discuss the Baumol effect which predicts how differential trends in technology productivity may affect trends in relative prices in the economy. We conclude with a discussion of some of the implications that Baumol's theories may have for the development of extreme levels of energy efficiency in the coming decades.

  1. Yearlong moored bioluminescence and current data at KM3NeT neutrino telescope sites in the deep Ionian Sea

    NASA Astrophysics Data System (ADS)

    van Haren, Hans; de Jong, Maarten; Kooijman, Paul

    2015-07-01

    Yearlong observations are presented using stand-alone small optical sensors and current meters in the deep Ionian Sea, E-Mediterranean. At two future neutrino telescope sites, off Sicily (I) and off Peloponessos (Gr), we deployed 2500-3000 m long mooring lines with oceanographic instrumentation. At about 150 m above the sea-floor, a glass sphere was mounted to each line holding two 3″-diameter photo-multiplier-tubes 'PMTs' in opposing directions for a first deep-sea test. Due to technical problems the background optical count rate could not be well established. Here, the focus is on the variations with time of bioluminescence bursts and their correlation with currents. Spectral analysis demonstrates that the PMT data best resemble those of horizontal currents (kinetic energy), significantly peaking at near-inertial, sub-inertial mesoscale and (Gr only) at tidal frequencies. Out-of-phase differences between signals from opposing PMTs in the same optical unit indicate impacts of bioluminescent organisms as a function of current direction, rather than a bacterial glow constant with time.

  2. Moored surface wind observations at four sites along the Pacific equator between 140 and 95 deg W

    NASA Technical Reports Server (NTRS)

    Halpern, David

    1988-01-01

    Moored surface wind measurements were recorded along the Pacific equator at 140, 124, 110, and 95 deg W during portions of 1980-1985. Minimum record length is one year. The annual mean and monthly mean westward speeds at 110 deg W were about 1.5 m/s higher during the year preceding the 1982-1983 El Nino than in the year following this event. The annual cycle, which moved westward at about 0.8 m/s, consisted of weak westward and northward speeds in February-April and vice versa in September-October. The spectral slope between 5-day and 0.05-day periods was -1.5. The rms amplitude of the 95-percent statistically significant diurnal period oscillation was 0.3 m/s, and the meridional component was nearly twice as large as the zonal component. The diurnal period wave was coherent (at the 95-percent confidence level) between 95 and 124 deg W, with westward phase propagation of about 138 m/s. No statistically significant spectral peak was found in the 40- to 50-day intraseasonal period band. The surface zonal ocean current component, which reached approximately 0.5 and -0.5 m/s in April and October, respectively at 110 deg W, influenced the surface wind stress computed from the quadratic bulk aerodynamic formulation by 10-20 percent.

  3. Simultaneous determination of tetrandrine and fangchinoline in herbal medicine Stephania tetrandra S. Moore by liquid chromatography with electrochemical detection.

    PubMed

    Liu, Lihong; Li, Shenglan; Chen, Zilin

    2012-03-01

    A simple and selective method was developed for the simultaneous determination of tetrandrine and fangchinoline in herbal medicine by HPLC with electrochemical detection (ECD) on a bare glassy carbon electrode. The HPLC separation and ECD conditions have been optimized. The separation was carried out on a WondaSil C18-WR column (4.6 mm × 250 mm, 5 μm), with the mobile phase of acetonitrile-ammonium acetate buffer (pH 6.5; 40 mM) (32:68, v/v) using an isocratic elution at the flow rate of 0.5 mL/min. The electrochemical detection potential was set at +0.9 V. The obtained LODs for tetrandrine and fangchinoline were 0.26 and 0.27 μmol/L, respectively. The method was successfully applied to the analysis of tetrandrine and fangchinoline contents in Stephania tetrandra S. Moore. It has been demonstrated that the LC-ECD method is an excellent technique for analysis of the herbal medicine. The mean recoveries were in the range of 95-105%, while the precision expressed as repetition of peak area was lower than 2.7%. PMID:22196802

  4. Full time-domain nonlinear coupled dynamic analysis of a truss spar and its mooring/riser system in irregular wave

    NASA Astrophysics Data System (ADS)

    Yang, MinDong; Teng, Bin; Xiao, LongFei; Ning, DeZhi; Shi, ZhongMin; Qu, Yan

    2014-01-01

    A new full time-domain nonlinear coupled method has been established and then applied to predict the responses of a Truss Spar in irregular wave. For the coupled analysis, a second-order time-domain approach is developed to calculate the wave forces, and a finite element model based on rod theory is established in three dimensions in a global coordinate system. In numerical implementation, the higher-order boundary element method (HOBEM) is employed to solve the velocity potential, and the 4th-order Adams-Bashforth-Moultn scheme is used to update the second-order wave surface. In deriving convergent solutions, the hull displacements and mooring tensions are kept consistent at the fairlead and the motion equations of platform and mooring-lines/risers are solved simultaneously using Newmark- β integration scheme including Newton-Raphson iteration. Both the coupled quasi-static analysis and the coupled dynamic analysis are performed. The numerical simulation results are also compared with the model test results, and they coincide very well as a whole. The slow-drift responses can be clearly observed in the time histories of displacements and mooring tensions. Some important characteristics of the coupled responses are concluded.

  5. An in situ evaluation of TOPEX/Poseidon altimetric measurements versus meaurements made by moorings and inverted echo sounders for sea surface height

    NASA Technical Reports Server (NTRS)

    1994-01-01

    The classical method of observing the sea surface height has been to make shipboard measurements of the vertical - density profile, and then calculating the surface height relative to a deeper reference surface. Two methods (a moored vertical string of instruments and an inverted echo sounder) were subsequently developed to obtain longer time in situ measurements. The first of these can be thought of as an extension of the discrete bottle hydrocast while the second integrates acoustically over the water column. One purpose of this note is to compare the result when coincidental observations are made by these two methods. This was done at two sites in the western tropical Pacific. Two inverted echo sounders were deployed alongside two enhanced TOGA-COARE moorings to be used in an in situ evaluation of TOPEX/Poseidon altimetric measurements of sea surface height. The mooring and inverted echo sounder data reproduced one another, at low frequency, with a correlation of 0.93 and 0.95 and the altimeter correlated with each of the above values ranging from 0.84 to 0.94. It is concluded that the altimetric measurements are statistically equivalent to the in situ measurements in the area of study.

  6. Particulate export and lateral advection in the Antarctic Polar Front (Southern Pacific Ocean): One-year mooring deployment

    NASA Astrophysics Data System (ADS)

    Tesi, T.; Langone, L.; Ravaioli., M.; Giglio, F.; Capotondi, L.

    2012-12-01

    An instrumented mooring line with sediment traps, current meters and recorders of temperature and conductivity was deployed just south of the Antarctic Polar Front (63° 26‧ S, 178° 03‧E; water depth 4400 m) from January 9th 1999 to January 10th 2000. Sediment traps at 900 and 3700 m had a single large cup to collect particulate material throughout the 1-year study whereas time-series sediment traps were used to characterize the temporal variability at 1300 and 2400 m. Samples were characterized via several parameters including total mass flux, elemental composition (organic carbon, total nitrogen, biogenic silica, and calcium carbonate), concentration of metals (aluminum, iron, barium, and manganese), 210Pb activity, and foraminifera identification. High vertical fluxes of biogenic particles were observed in both summer 1999 and 2000 as a result of seasonal algal blooms associated with sea ice retreat and water column stratification. During autumn and winter, several high energy events occurred and resulted in advecting resuspended biogenic particles from flat-topped summits of the Pacific Antarctic Ridge. Whereas the distance between seabed and uppermost sediment traps was sufficient to avoid lateral advection processes, resuspension was significant in the lowermost sediment traps accounting for ~ 60 and ~ 90% of the material caught at 2400 and 3700 m, respectively. Although resuspended material showed an elemental composition relatively similar to vertical summer fluxes, samples collected during high energy events contained benthic foraminifera and exhibited significantly higher 210Pb activity indicating a longer residence time in the water column. In addition, during quiescent periods characterized by low mass fluxes, the content of lithogenic particles increased at the expense of phytodetritus indicating the influence of material advected through the benthic nepheloid layer. Organic matter content was particularly high during these periods and showed

  7. Assessing the catchment scale response of hydrology to ditch blocking in blanket peats: An example from Stean Moor, northern England.

    NASA Astrophysics Data System (ADS)

    Grayson, Richard; Holden, Joseph

    2014-05-01

    Where peatlands are found in a degraded state it is often felt that interventions should be implemented to return these to a more 'natural state'. However there is a lack of long-term data from peatland restoration projects at scales greater than ditch network or hillslope scale. Within the UK significant investment has been made to block open-cut ditches in many upland blanket peatlands. It has been widely suggested that ditch blocking impacts both water quality and quantity. However, much of the work to understand these impacts has relied on studies focused at the ditch or slope scale. Stean Moor is drained heavily at 15.8 km of ditches per km2. In 2009 investment was secured to block these ditches, with c. 30000 peat dams being installed over winter 2009/10 and 2010/11. At twelve stream monitoring sites (11 affected by blocking upstream and 1 control) discharge and turbidity has been continuously monitored since 2009. Stream water sampling has also been undertaken monthly and through storm event sampling using autosamplers and tested for water colour, DOC and suspended sediment concentration (SSC). Overall there is a lack of significant changes to either discharge or water quality at the catchment scale. We suggest that drain blocking has not led to clear changes in streamflow hydrology due to i) two competing hydrological changes within the peatland cancelling each other out and ii) the severe nature of the peatland degradation at the site such that rapid recovery in some hydrological functions has not occurred. There has also been no rapid recovery (reduction) in aquatic carbon production due to the severe nature of the degradation caused by dense drainage and wider disturbances. In addition, wider degradation features such as some of the major sediment sources in the catchment were not dealt with by ditch blocking alone demonstrating that multiple interventions are required in some peatland systems to properly deal with site rehabilitation and ecosystem

  8. Plume dispersed hydrothermal particles: A time-series record of settling flux from the Endeavour Ridge using moored sensors

    SciTech Connect

    Dymond, J.; Roth, S. )

    1988-10-01

    Settling particles collected with moored sediment traps near an area of active hydrothermal venting in the northeast Pacific Ocean provide information about the deep-sea distribution of hydrothermal material. Results of an 8-day, near-field, single-trap experiment and a 340-day, multi-instrument, 5-trap deployment two kilometers from the Endeavour Ridge vent field show variability in the quantity and composition of the plume-to-sediment particle flux over time, with depth, and with distance from the vent field. Hydrothermal elemental fluxes vary by a factor of two among the four sampling intervals of the longer experiment; a factor of three variation in Fe/S among these periods reflects temporal changes in phase composition. Changes in flux with depth--for example, a 200-fold increase in Cu and Zn between above- and below-plume traps are evidence of hydrothermal input. Comparison of fluxes determined in the near- and far-field experiments reveals the spatial influence of vent effluent. Near-field particle flux exceeds that measured two kilometers away by a factor of 10 to 20 and is relatively enriched in Fe, Cu, and organic carbon, but depleted in Mn. Calculations of the residence time of the plume with respect to settling indicate that more than 90 percent of the particulate material is transported farther than two kilometers from the vent field. Interpretation of elemental, mineralogical, and grain-size analyses suggest that chemical precipitation kinetics, other physical and biological particle-forming processes, changes in vent output, and lateral transport of hydrothermal material by abyssal currents are tenable explanations for the authors' observations. Their findings suggest that these rage-interdependent processes be included in realistic models of hydrothermal particle flux.

  9. Subduction experiment. Cruise report, R/V oceanus, cruise number 250 legs 1 and 2. Subduction 2 mooring deployment and recovery cruise, 25 January-26 February 1992. Technical report, 25 January-26 February 1992

    SciTech Connect

    Trask, R.P.; Brink, N.J.; Regier, L.; McPhee, N.

    1993-03-01

    Subduction is the mechanism by which water masses formed in the mixed layer and near the surface of the ocean find their way into the upper thermocline. The subduction process and its underlying mechanisms were studied through a combination of Eulerian and Langrangian measurements of velocity, measurements of tracer distributions and hydrographic properties and modeling. An array of five surface moorings carrying meteorological and oceanographic instrumentation were deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction experiment. Three eight month deployments were planned. The initial deployment of five surface moorings took place during the third leg of R/V Oceanus cruise number 240. The moorings were deployed at 18 deg N 34 deg W, 18 deg N 22 deg W, 25.5 deg N 29 deg W, 33 deg N 22 deg W and 33 deg N 34 deg W. A Vector Averaging Wind Recorder (VAWR) and an Improved Meteorological Recorder (IMET) collected wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The moorings were heavily instrumented below the surface with Vector Measuring Current Meters (VMCM) and single point temperature recorders. Expendable bathythermograph (XBT) data were collected and meteorological observations were made while transitting between mooring locations. This report describes the work that took place during R/V Oceanus cruise 250 which was the second scheduled Subduction mooring cruise. During this cruise the first setting of the moorings were recovered and redeployed for a second eight month period.

  10. Mooring-based long-term observation of oceanographic condition in the Chukchi Ses and Canada Basin of the Arctic Ocean

    NASA Astrophysics Data System (ADS)

    Kikuchi, Takashi; Itoh, Motoyo; Nishino, Shigeto; Watanabe, Eiji

    2015-04-01

    Changes of the Arctic Ocean environment are well known as one of the most remarkable evidences of global warming, attracting social and public attentions as well as scientists'. However, to illustrate on-going changes and predict future condition of the Arctic marine environment, we still do not have enough knowledge of Arctic sea ice and marine environment. In particular, lack of observation data in winter, e.g., under sea ice, still remains a key issue for precise understanding of seasonal cycle on oceanographic condition in the Arctic Ocean. Mooring-based observation is one of the most useful methods to collect year-long data in the Arctic Ocean. We have been conducting long-term monitoring using mooring system in the Pacific sector of the Arctic Ocean. Volume, heat, and freshwater fluxes through Barrow Canyon where is a major conduit of Pacific-origin water-masses into the Canada Basin have been observed since 2000. We show from an analysis of the mooring results that volume flux through Barrow Canyon was about 60 % of Bering Strait volume flux. Averaged heat flux ranges from 0.9 to 3.07 TW, which could melt 88,000 to 300,000 km2 of 1m thick ice in the Canada Basin, which likely contributed to sea ice retreat in the Pacific sector of the Arctic Ocean. In winter, we found inter-annual variability in salinity related to coastal polynya activity in the Chukchi Sea. In collaboration with Distributed Biological Observatory (DBO) project, which is one of the tasks of Sustaining Arctic Observing Network (SAON), we also initiated year-long mooring observation in the Hope Valley of the southern Chukchi Sea since 2012. Interestingly, winter oceanographic conditions in the Hope Valley are greatly different between in 2012-2013 and in 2013-2014. We speculate that differences of sea ice freeze-up and coastal polynya activity in the southern Chukchi Sea cause significant difference of winter oceanographic condition. It suggests that recent sea ice reduction in the Pacific

  11. High frequency measurements of dissolved inorganic and organic nutrients using instrumented moorings in the southern and central North Sea

    NASA Astrophysics Data System (ADS)

    Suratman, Suhaimi; Weston, Keith; Greenwood, Naomi; Sivyer, David B.; Pearce, David J.; Jickells, Tim

    2010-05-01

    The aim of this study was to investigate the cycling of dissolved inorganic and organic nutrients using moored instrumented buoys (SmartBuoys) during the spring bloom in the North Sea. The instrumentation on the buoys enabled high frequency measurements of water-column integrated irradiance and in situ chlorophyll to be made, and also preserved water sample collection which were used for dissolved inorganic and organic nutrient analyses. The SmartBuoys were located in the year-round well-mixed plume zone associated with the River Thames and in the summer stratified central North Sea. These site locations allowed comparison of nutrient concentrations and cycling, and spring bloom development at two contrasting sites. The spring bloom was expected to be initiated at both stations due to increasing insolation and decreasing suspended load leading to higher water-column integrated irradiance. Due to differences in suspended load between the sites, the spring bloom started ˜2 months earlier in the central North Sea. The spring bloom in the Thames plume also resulted in higher maximum phytoplankton biomass due to the higher pre-bloom nutrient concentrations associated with riverine input. The use of SmartBuoys is also shown to allow the cycling of dissolved organic nutrients to be examined over the critical, and often undersampled, spring bloom period. Dissolved Organic Nitrogen (DON) clearly increased during the spring bloom in the central North Sea compared to winter concentrations. DON also increased in the Thames plume although showing greater winter variability related to higher riverine and sedimentary dissolved organic matter input at this shallow (˜18 m) coastal site. DON increase during the spring bloom was therefore related to primary production at both sites probably due to active release by phytoplankton. At both stations DON decreased to pre-bloom concentrations as the bloom declined suggesting the released DON was bioavailable and removed due to

  12. Re-description of a genetically typed, single oocyst line of the turkey coccidium, Eimeria adenoeides Moore and Brown, 1951.

    PubMed

    El-Sherry, S; Ogedengbe, M E; Hafeez, M A; Sayf-Al-Din, M; Gad, N; Barta, J R

    2014-11-01

    The Guelph strain of Eimeria adenoeides was obtained from a commercial turkey flock in Ontario, Canada, in 1985. Single oocyst derived lines of E. adenoeides were propagated, and one of them used to re-describe biological and morphological features of E. adenoeides in the turkey. Oocysts of this strain are within the lower size ranges in the original species description reported by Moore and Brown (1951); oocysts of the Guelph strain averaged 18.7 ± 1.4 μm (16.7-22.5) by 14.3 ± 0.9 μm (13-16.2, n = 30) with a shape index (SI) of 1.3 ± 0.1. It is possible that the original species description was based, at least in part, on a mixed culture of two or more Eimeria species. Immature first-generation meronts of E. adenoeides Guelph strain were observed histologically at 32 h post-infection in the ileum and cecal neck. Early studies reported only two asexual generations suggested that first asexual cycle observed at 32 h post-infection was overlooked. In the present study, three asexual generations were observed before the start of gametogony. The Guelph strain is also characterized by a prepatent period of 112 h. The Guelph strain of E. adenoeides is a highly pathogenic coccidium that forms classic cecal lesions, including prominent caseous cecal cores, during moderate to severe infections. The maximum output of oocysts (1.77 × 10(7) per bird) was obtained from birds inoculated with 1 × 10(3) oocysts; maximum fecundity (1.55 × 10(5) oocyst shed per oocyst inoculated) was obtained with an inoculation of 1 × 10(2) oocysts, but fecundity dropped dramatically as the inoculation dose increased. To promote stability of the E. adenoeides species concept, neotype specimens (a parahapantotype slides series and phototype) have been designated and deposited for future reference. PMID:25127734

  13. Moore and Less!

    ERIC Educational Resources Information Center

    Asghari, Amir

    2012-01-01

    This article is the story of a very non-standard, absolutely student-centered multivariable calculus course. The course advocates the so-called problem method in which the problems used are a bridge between what the learners know and what they are about to know. The main feature of the course is a unique conceptual story that runs through the…

  14. Automatic recognition of T and teleseismic P waves by statistical analysis of their spectra: An application to continuous records of moored hydrophones

    NASA Astrophysics Data System (ADS)

    Sukhovich, Alexey; Irisson, Jean-Olivier; Perrot, Julie; Nolet, Guust

    2014-08-01

    A network of moored hydrophones is an effective way of monitoring seismicity of oceanic ridges since it allows detection and localization of underwater events by recording generated T waves. The high cost of ship time necessitates long periods (normally a year) of autonomous functioning of the hydrophones, which results in very large data sets. The preliminary but indispensable part of the data analysis consists of identifying all T wave signals. This process is extremely time consuming if it is done by a human operator who visually examines the entire database. We propose a new method for automatic signal discrimination based on the Gradient Boosted Decision Trees technique that uses the distribution of signal spectral power among different frequency bands as the discriminating characteristic. We have applied this method to automatically identify the types of acoustic signals in data collected by two moored hydrophones in the North Atlantic. We show that the method is capable of efficiently resolving the signals of seismic origin with a small percentage of wrong identifications and missed events: 1.2% and 0.5% for T waves and 14.5% and 2.8% for teleseismic P waves, respectively. In addition, good identification rates for signals of other types (iceberg and ship generated) are obtained. Our results indicate that the method can be successfully applied to automate the analysis of other (not necessarily acoustic) databases provided that enough information is available to describe statistical properties of the signals to be identified.

  15. A tale of two studies on auditory training in children: A response to the claim that 'discrimination training of phonemic contrasts enhances phonological processing in mainstream school children' by Moore, Rosenberg and Coleman (2005).

    PubMed

    Halliday, Lorna F

    2014-05-01

    In a previous article, Moore, Rosenberg and Coleman (Brain and Language, 2005, 94, 72-85) reported evidence for significant improvements in phonological awareness in mainstream children following 6 h of exposure to a commercially available phoneme discrimination training programme, but not in a control group. In a follow-up study, we failed to replicate this finding, despite using an almost identical training programme (Halliday, Taylor, Millward, & Moore, Journal of Speech, Language, and Hearing Research, 2012, 55, 168-181). This paper directly compares the methods and the results of the two studies, in an effort to explain the discrepant findings. It reports that the trained group in Moore et al. (2005) showed significantly greater improvements in phonological awareness following training than the trained group in Halliday et al. (2012). However, the control group in Halliday et al. (2012) showed significantly greater improvements in phonological awareness than the control group in Moore et al. (2005). The paper concludes that differences in the randomization, blinding, experimenter familiarity and treatment of trained and control groups contributed to the different outcomes of the two studies. The results indicate that a plethora of factors can contribute to training effects and highlight the importance of well-designed randomized controlled trials in assessing the efficacy of a given intervention. PMID:24470350

  16. A Tale of Two Studies on Auditory Training in Children: A Response to the Claim that ‘Discrimination Training of Phonemic Contrasts Enhances Phonological Processing in Mainstream School Children’ by Moore, Rosenberg and Coleman (2005)

    PubMed Central

    Halliday, Lorna F

    2014-01-01

    In a previous article, Moore, Rosenberg and Coleman (Brain and Language, 2005, 94, 72-85) reported evidence for significant improvements in phonological awareness in mainstream children following 6 h of exposure to a commercially available phoneme discrimination training programme, but not in a control group. In a follow-up study, we failed to replicate this finding, despite using an almost identical training programme (Halliday, Taylor, Millward, & Moore, Journal of Speech, Language, and Hearing Research, 2012, 55, 168-181). This paper directly compares the methods and the results of the two studies, in an effort to explain the discrepant findings. It reports that the trained group in Moore et al. (2005) showed significantly greater improvements in phonological awareness following training than the trained group in Halliday et al. (2012). However, the control group in Halliday et al. (2012) showed significantly greater improvements in phonological awareness than the control group in Moore et al. (2005). The paper concludes that differences in the randomization, blinding, experimenter familiarity and treatment of trained and control groups contributed to the different outcomes of the two studies. The results indicate that a plethora of factors can contribute to training effects and highlight the importance of well-designed randomized controlled trials in assessing the efficacy of a given intervention. © 2014 The Authors. Dyslexia published by John Wiley & Sons, Ltd. PMID:24470350

  17. Submitting MIGS, MIMS, MIENS Information to EMBL and Standards and the Sequencing Pipelines of the Gordon and Betty Moore Foundation (GSC8 Meeting)

    ScienceCinema

    Vaughan, Bob [EMBL]; Kaye, Jon [Gordon and Betty Moore Foundation

    2011-04-29

    The Genomic Standards Consortium was formed in September 2005. It is an international, open-membership working body which promotes standardization in the description of genomes and the exchange and integration of genomic data. The 2009 meeting was an activity of a five-year funding "Research Coordination Network" from the National Science Foundation and was organized held at the DOE Joint Genome Institute with organizational support provided by the JGI and by the University of California - San Diego. Bob Vaughan of EMBL on submitting MIGS/MIMS/MIENS information to EMBL-EBI's system, followed by a brief talk from Jon Kaye of the Gordon and Betty Moore Foundation on standards and the foundation's sequencing pipelines at the Genomic Standards Consortium's 8th meeting at the DOE JGI in Walnut Creek, Calif. on Sept. 9, 2009

  18. Submitting MIGS, MIMS, MIENS Information to EMBL and Standards and the Sequencing Pipelines of the Gordon and Betty Moore Foundation (GSC8 Meeting)

    SciTech Connect

    Vaughan, Bob; Kaye, Jon

    2009-09-09

    The Genomic Standards Consortium was formed in September 2005. It is an international, open-membership working body which promotes standardization in the description of genomes and the exchange and integration of genomic data. The 2009 meeting was an activity of a five-year funding "Research Coordination Network" from the National Science Foundation and was organized held at the DOE Joint Genome Institute with organizational support provided by the JGI and by the University of California - San Diego. Bob Vaughan of EMBL on submitting MIGS/MIMS/MIENS information to EMBL-EBI's system, followed by a brief talk from Jon Kaye of the Gordon and Betty Moore Foundation on standards and the foundation's sequencing pipelines at the Genomic Standards Consortium's 8th meeting at the DOE JGI in Walnut Creek, Calif. on Sept. 9, 2009

  19. Impact of recirculation on the East Greenland Current in Fram Strait: Results from moored current meter measurements between 1997 and 2009

    NASA Astrophysics Data System (ADS)

    de Steur, L.; Hansen, E.; Mauritzen, C.; Beszczynska-Möller, A.; Fahrbach, E.

    2014-10-01

    Transports of total volume and water masses obtained from a mooring array in the East Greenland Current (EGC) in Fram Strait are presented for the period 1997-2009. The array in the EGC was moved along isobaths from 79°N to 78°50‧N in 2002 to line up with moorings in the eastern Fram Strait. Analysis of the time series at the two latitudes shows that associated with the southward move, the annual mean volume transport of the EGC increased from 5.8±1.8 Sv to 8.7±2.5 Sv, mostly related with an increase in barotropic flow. This suggests a recirculation of close to 3 Sv at 78°50‧N as a consequence of the large-scale wind-driven cyclonic gyre in the Nordic Seas. In addition, the volume transport at 78°50‧N showed a clear seasonal cycle which was absent at 79°N. Estimates of the wind-driven Sverdrup transport at two different latitudes show that the difference in total volume transport and seasonality can largely be explained by the wind-stress curl. However, weak transport in 2003 was only partially related with weak Sverdrup transport and coincided also with anomalously weak northerly winds. The stronger recirculation at 78°50‧N has also consequences for the observed Atlantic Water: there is significantly more Atlantic derived water present at the southerly latitude. In addition, the warm anomaly in Fram Strait between 2005 and 2007 doubled the amount of Recirculated Atlantic Water temporarily. Finally, we estimate that close to 2.7 Sv, or 50%, of Atlantic derived water recirculates in Fram Strait.

  20. Coastal Changes in Temperature and Salinity Observed during Hurricane Isaac Recorded and Downloaded by NASA DRIFTERs Moored in Heron Bay and at Half Moon Island, Louisiana

    NASA Technical Reports Server (NTRS)

    Kalcic, Maria; Iturriaga, Rodolfo H.; Kuper, Philip D.; O'Neal, Stanford Duane; Underwood, Lauren; Fletcher, Rose

    2012-01-01

    Major changes in salinity (approx.14 ppt.) and temperature (approx.40C) were continuously registered by two prototype NASA DRIFTERs, surface moored floaters, that NASA's Applied Science and Technology Project Office (ASTPO) has developed. The DRIFTER floating sensor module is equipped with an Arduino open-source electronics prototyping platform and programming language (http://www.arduino.cc), a GPS (Global Positioning System) module with antenna, a cell phone SIM (Subscriber Identity Module) card and a cellular antenna which is used to transmit data, and a probe to measure temperature and conductivity (from which salinity can be derived). The DRIFTER is powered by a solar cell panel and all the electronic components are mounted and sealed in [ waterproof encasement. Position and measurement data are transmitted via short message service (SMS) messaging to a Twitter site (DRIFTER 002@NASADRIFTER_002 and DRIFTER 004@NASADRIFTER_004), which provides a live feed. These data are the imported into a Google spreadsheet where conductivity is converted to salinity, and graphed in real-time. The spreadsheet data will be imported into a webpage maintained by ASTPO, where it will be displayed available for dO\\\\1lload.

  1. Micro-domain analysis of skin samples of moor-mummified corpses by evanescent wave infrared spectroscopy using silver halide fibers

    NASA Astrophysics Data System (ADS)

    Küpper, L.; Heise, H. M.; Bechara, F.-G.; Stücker, M.

    2001-05-01

    Infrared microscopy plays an important role in chemical micro-domain analysis of inhomogeneous materials. A simple experimental arrangement based on fiber-optics, employing bent silver halide fibers of sub-millimeter diameter cross-section, was used for infrared ATR-measurements with a minimum spot size of 20×60 μm 2. It was applied for the analysis of skin specimens and hair samples of mummified corpses, preserved under bog conditions. The desiccated dermis samples looked leather-like, but were rather brittle, so that micro-ATR measurements by a fiber probe were appropriate. Comparable ATR-results were obtained using an IR-microscope. Composition along perpendicular dermis cross-sections was evaluated by comparison with spectra from reference materials. Natural dermis samples are mainly composed of collagen, primarily of type I and III, which was still found in the mummies' skin. The surfaces of the skin samples displayed chemical changes from moor constituents, while the center of the dermis cross-section consisted of unmodified collagen. Keratin in hair samples was also well preserved apart from surface changes, which had been caused by the bog chemistry in these samples and are clearly manifested in the infrared spectra.

  2. High occurrence of the elasipodid holothurian Penilpidia ludwigi (von Marenzeller, 1893) in bathyal sediment traps moored in a western Mediterranean submarine canyon

    NASA Astrophysics Data System (ADS)

    Pagès, F.; Martín, J.; Palanques, A.; Puig, P.; Gili, J.-M.

    2007-12-01

    One hundred and fifty specimens of the elasipod holothurian Penilpidia ludwigi (von Marenzeller, 1893) were collected in sediment traps moored near the seabed in the La Fonera Canyon (Catalan Sea, north-western Mediterranean) and on the adjacent continental slope. These provide the third record of this apparently endemic Mediterranean species and the first record from the western Mediterranean. This was the only holothurian species trapped and the most abundant macroscopic organism found in the traps between 1200 and 1700 m depth over the whole sampling period (March-November 2001). It was particularly abundant in spring during the main flux of organic particles in the canyon. This coupling suggests that Penilpidia may aggregate at the seafloor during these events, making food availability a plausible explanation of the seasonal occurrence. Lateral transport of material re-suspended locally or up-canyon by near bottom currents appear to be the mechanism behind this uncommon occurrence, although in situ observations have recently been made on the swimming capability of this holothurian. The occurrence of benthic organisms in sediment traps set close to the seabed can provide information on bathyal benthic and benthopelagic populations.

  3. Estimating sea-ice coverage, draft, and velocity in Marguerite Bay (Antarctica) using a subsurface moored upward-looking acoustic Doppler current profiler (ADCP)

    NASA Astrophysics Data System (ADS)

    Hyatt, Jason; Visbeck, Martin; Beardsley, Robert C.; Brechner Owens, W.

    2008-02-01

    A technique for the analysis of data from a subsurface moored upward-looking acoustic Doppler current profiler (ADCP) to determine ice coverage, draft and velocity is presented and applied to data collected in Marguerite Bay on the western Antarctic Peninsula shelf. This method provides sea-ice information when no dedicated upward-looking sonar (ULS) data are available. Ice detection is accomplished using windowed variances of ADCP vertical velocity, vertical error velocity, and surface horizontal speed. ADCP signal correlation and backscatter intensity were poor indicators of the presence of ice at this site. Ice draft is estimated using a combination of ADCP backscatter data, atmospheric and oceanic pressure data, and information about the thermal stratification. This estimate requires corrections to the ADCP-derived range for instrument tilt and sound speed profile. Uncertainties of ±0.20 m during midwinter and ±0.40 m when the base of the surface mixed layer is above the ADCP for ice draft are estimated based on: (a) a Monte Carlo simulation, (b) uncertainty in the sound speed correction, and (c) performance of the zero-draft estimate during times of known open water. Ice velocity is taken as the ADCP horizontal velocity in the depth bin specified by the range estimate.

  4. Calculating IP Tuning Knobs for the PEP II High Energy Ring using Singular Value Decomposition, Response Matrices and an Adapted Moore Penrose Method

    SciTech Connect

    Wittmer, W.; /SLAC

    2007-11-07

    The PEP II lattices are unique in their detector solenoid field compensation scheme by utilizing a set of skew quadrupoles in the IR region and the adjacent arcs left and right of the IP. Additionally, the design orbit through this region is nonzero. This combined with the strong local coupling wave makes it very difficult to calculate IP tuning knobs which are orthogonal and closed. The usual approach results either in non-closure, not being orthogonal or the change in magnet strength being too big. To find a solution, the set of tuning quads had to be extended which resulted having more degrees of freedom than constraints. To find the optimal set of quadrupoles which creates a linear, orthogonal and closed knob and simultaneously minimizing the changes in magnet strength, the method using Singular Value Decomposition, Response Matrices and an Adapted Moore Penrose method had to be extended. The results of these simulations are discussed below and the results of first implementation in the machine are shown.

  5. Using a Partial Sum Method and GPS Tracking Data to Identify Area Restricted Search by Artisanal Fishers at Moored Fish Aggregating Devices in the Commonwealth of Dominica

    PubMed Central

    Alvard, Michael; Carlson, David; McGaffey, Ethan

    2015-01-01

    Foragers must often travel from a central place to exploit aggregations of prey. These patches can be identified behaviorally when a forager shifts from travel to area restricted search, identified by a decrease in speed and an increase in sinuosity of movement. Faster, more directed movement is associated with travel. Differentiating foraging behavior at patches from travel to patches is important for a variety of research questions and has now been made easier by the advent of small, GPS devices that can track forager movement with high resolution. In the summer and fall of 2012, movement data were collected from GPS devices placed on foraging trips originating in the artisanal fishing village of Desa Ikan (pseudonym), on the east coast of the Caribbean island nation of the Commonwealth Dominica. Moored FADs are human-made structures anchored to the ocean floor with fish attraction material on or near the surface designed to effectively create a resource patch. The ultimate goal of the research is to understand how property rights are emerging after the introduction of fish aggregating device (FAD) technology at the site in 1999. This paper reports on research to identify area-restricted search foraging behavior at FAD patches. For 22 foraging trips simultaneous behavioral observations were made to ground-truth the GPS movement data. Using a cumulative sum method, area restricted search was identified as negative deviations from the mean travel speed and the method was able to correctly identify FAD patches in every case. PMID:25647288

  6. Variability in the abundance and species composition of diatoms in sinking particles in the northern South China Sea: Results from time-series moored sediment traps

    NASA Astrophysics Data System (ADS)

    Ran, Lihua; Chen, Jianfang; Wiesner, Martin G.; Ling, Zheng; Lahajnar, Niko; Yang, Zhi; Li, Hongliang; Hao, Qiang; Wang, Kui

    2015-12-01

    Seasonal variability of diatom abundance and species composition in sinking particles in the northern South China Sea was studied using continuous time-series sediment trap moorings during a one-year period, 2009-2010. A clear seasonal pattern of diatom abundance was observed, with higher fluxes in winter than in summer. This could be related to positive response of diatom growth to increased nutrient supply from the subsurface waters as a result of enhanced vertical mixing in winter. Mesoscale eddy activities and strong Asian dust input could also stimulate the diatom growth and increase the diatom export flux to the deep South China Sea. The strong Asian dust input during spring 2010 probably accelerated the aggregation and downward flux of diatoms in the northern South China Sea. No distinctive seasonal pattern in diatom species composition was recorded, but there was a close correlation of diatom abundances with the cell size and the degree of silification. The sinking velocity of the diatom related particles from the sea surface to the deep South China Sea has been estimated to be ~30-50 m d-1 by comparing the surface chlorophyll a with the diatom abundance and species in sediment traps at 1003 m and 3226 m depths. Strong dissolution of small-sized and low-silicified diatom species and lateral advection of particles were also indicated for the deep northern South China Sea. The present results are crucial as a basis for future understanding of fossil assemblage changes in connection with palaeoclimatic and palaeooceanographic research.

  7. Antimicrobial activity, acute toxicity and cytoprotective effect of Crassocephalum vitellinum (Benth.) S. Moore extract in a rat ethanol-HCl gastric ulcer model

    PubMed Central

    2014-01-01

    Background A decoction of Crassocephallum vitellinum (Benth.) S. Moore (Asteraceae) is used in Kagera Region to treat peptic ulcers. This study seeks to evaluate an aqueous ethanol extract of aerial parts of the plant for safety and efficacy. Methods An 80% ethanolic extract of C. vitellinum at doses of 100, 200, 400 and 800 mg/kg body wt was evaluated for ability to protect Sprague Dawley rats from acidified ethanol gastric ulceration in comparison with 40 mg/kg body wt pantoprazole. The extract and its dichloromethane, ethyl acetate, and aqueous fractions were also evaluated for acute toxicity in mice, brine shrimp toxicity, and antibacterial activity against four Gram negative bacteria; Escherichia coli (ATCC 25922), Salmonella typhi (NCTC 8385), Vibrio cholera (clinical isolate), and Streptococcus faecalis (clinical isolate). The groups of phytochemicals present in the extract were also determined. Results The ethanolic extract of C. vitellinum dose-dependently protected rat gastric mucosa against ethanol/HCl insult to a maximum of 88.3% at 800 mg/kg body wt, affording the same level of protection as by 40 mg/kg body wt pantoprazole. The extract also exhibited weak antibacterial activity against S. typhi and E. coli, while its ethyl acetate, dichloromethane and aqueous fractions showed weak activity against K. pneumonia, S.typhi, E. coli and V. cholera. The extract was non-toxic to mice up to 5000 mg/kg body wt, and the total extract (LC50 = 37.49 μg/ml) and the aqueous (LC50 = 87.92 μg/ml), ethyl acetate (LC50 = 119.45 μg/ml) and dichloromethane fractions (88.79 μg/ml) showed low toxicity against brine shrimps. Phytochemical screening showed that the extract contains tannins, saponins, flavonoids, and terpenoids. Conclusion The results support the claims by traditional healers that a decoction of C.vitellinum has antiulcer activity. The mechanism of cytoprotection is yet to be determined but the phenolic compounds present in the

  8. Ruth Moore Act of 2013

    THOMAS, 113th Congress

    Rep. Pingree, Chellie [D-ME-1

    2013-02-13

    06/06/2013 Received in the Senate and Read twice and referred to the Committee on Veterans' Affairs. (All Actions) Tracker: This bill has the status Passed HouseHere are the steps for Status of Legislation:

  9. Flood-inundation maps for Peachtree Creek from the Norfolk Southern Railway bridge to the Moores Mill Road NW bridge, Atlanta, Georgia

    USGS Publications Warehouse

    Musser, Jonathan W.

    2012-01-01

    Digital flood-inundation maps for a 5.5-mile reach of the Peachtree Creek from the Norfolk Southern Railway bridge to the Moores Mill Road NW bridge, were developed by the U.S. Geological Survey (USGS) in cooperation with the City of Atlanta, Georgia. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage at Peachtree Creek at Atlanta, Georgia (02336300) and the USGS streamgage at Chattahoochee River at Georgia 280, near Atlanta, Georgia (02336490). Current water level (stage) at these USGS streamgages may be obtained at http://waterdata.usgs.gov/ and can be used in conjunction with these maps to estimate near real-time areas of inundation. The National Weather Service (NWS) is incorporating results from this study into the Advanced Hydrologic Prediction Service (AHPS) flood warning system (http:/water.weather.gov/ahps/). The NWS forecasts flood hydrographs at many places that commonly are collocated at USGS streamgages. The forecasted peak-stage information for the USGS streamgage at Peachtree Creek, which is available through the AHPS Web site, may be used in conjunction with the maps developed in this study to show predicted areas of flood inundation. A one-dimensional step-backwater model was developed using the U.S. Army Corps of Engineers HEC–RAS software for a 6.5-mile reach of Peachtree Creek and was used to compute flood profiles for a 5.5-mile reach of the creek. The model was calibrated using the most current stage-discharge relations at the Peachtree Creek at Atlanta, Georgia, streamgage (02336300), and the Chattahoochee River at Georgia 280, near Atlanta, Georgia, streamgage (02336490) as well as high water marks collected during the 2010 annual peak flow event. The hydraulic model was then used to determine 50 water

  10. News Conference: Physics brings the community together Training: CERN trains physics teachers Education: World conference fosters physics collaborations Lecture: Physics education live at ASE Prize: Physics teacher wins first Moore medal Festival: European presidents patronize Science on Stage festival Videoconference: Videoconference brings Durban closer to the classroom

    NASA Astrophysics Data System (ADS)

    2012-03-01

    Conference: Physics brings the community together Training: CERN trains physics teachers Education: World conference fosters physics collaborations Lecture: Physics education live at ASE Prize: Physics teacher wins first Moore medal Festival: European presidents patronize Science on Stage festival Videoconference: Videoconference brings Durban closer to the classroom

  11. Levels of Cd, Cu, Pb and V in marine sediments in the vicinity of the Single Buoy Moorings (SBM3) at Mina Al Fahal in the Sultanate of Oman.

    PubMed

    Al-Husaini, Issa; Abdul-Wahab, Sabah; Ahamad, Rahmalan; Chan, Keziah

    2014-06-15

    Recently in the Sultanate of Oman, there has been a rapid surge of coastal developments. These developments cause metal contamination, which may affect the habitats and communities at and near the coastal region. As a result, a study was conducted to assess the level of metal contamination and its impact on the marine sediments in the vicinity of the Single Buoy Moorings 3 (SBM3) at Mina Al Fahal in the Sultanate of Oman. Marine subtidal sediment samples were collected from six different stations of the SBM3 for the period ranging from June 2009 to April 2010. These samples were then analyzed for their level and distribution of the heavy metals of cadmium (Cd), copper (Cu), lead (Pb) and vanadium (V). Overall, low concentrations of all four heavy metals were measured from the marine sediments, indicating that the marine at SBM3 is of good quality. PMID:24775070

  12. Simultaneous determination of fangchinoline and tetrandrine in Stephania tetrandra S. Moore by using 1-alkyl-3-methylimidazolium-based ionic liquids as the RP-HPLC mobile phase additives.

    PubMed

    Tang, Yan; Sun, Ailing; Liu, Renmin; Zhang, Yongqing

    2013-03-12

    A reversed phase high performance liquid chromatography (RP-HPLC) method for simultaneous determination of fangchinoline (FAN) and tetrandrine (TET) in Stephania tetrandra S. Moore was established by using 1-hexyl-3-methylimidazolium tetrafluoroborate as the mobile phase additives in this paper. Four types of 1-alkyl-3-methylimidazolium-based ionic liquids (ILs) were used as additives of the mobile phase to separate FAN and TET by RP-HPLC. The effects of the length of the alkyl group on the imidazolium ring and its counterion, the concentrations of IL and the pH of the mobile phase, which influenced the chromatographic behaviors of FAN and TET, were investigated in detail. The linearity, sensitivity, accuracy and repeatability of the proposed method were also investigated. The probable mechanism of the separation with ILs as the mobile phase additives was explored and discussed. PMID:23452799

  13. Using grouper fish as bio-indicator of Cd, Cu, Pb and V in the vicinity of a single buoy mooring (SBM3) at Mina Al Fahal in the Sultanate of Oman.

    PubMed

    Abdul-Wahab, S A; Al-Husaini, I S; Rahmalan, A

    2013-12-01

    This paper investigated metal contamination in muscle tissue of the grouper (Epinephelus coioides) in the vicinity of a single buoy mooring (SBM3) at the Sultanate of Oman. The fish samples were analyzed for cadmium (Cd), copper (Cu), lead (Pb) and vanadium (V). The mean concentrations of Cd, Cu, Pb and V in the fish samples were 0.05 ± 0.004, 0.34 ± 0.013, 0.20 ± 0.018 and 0.03 ± 0.006 mg/kg, respectively. The results were compared with the corresponding permissible concentration limits according to the Sultanate of Oman (0.05, 3.28, 0.3 and 1.4 mg/kg for Cd, Cu, Pb and V, respectively) and the European Commission (0.05 mg/kg for Cd and 0.3 mg/kg for Pb). It was found that none of the overall mean metal concentrations exceeded the corresponding Omani legislation or European Commission limits. However, the overall mean concentration of Cd was identical to the maximum permissible limit of 0.05 mg/kg that has been established by both Commissions, and the limits were exceeded for mean Cd levels in fish at two of the six sampling stations at SBM3. In general, this study indicated that the fishes at SBM3 were not highly contaminated with these metals. PMID:24145924

  14. Ultra high performance liquid chromatography with tandem mass spectrometry method for the determination of tetrandrine and fangchinoline in rat plasma after oral administration of Fangji Huangqi Tang and Stephania tetrandra S. Moore extracts.

    PubMed

    Wang, Xiaoli; Liu, Xiao; Cai, Hao; Pei, Ke; Cao, Gang; Xu, Xiaoyan; Shi, Fa; Cai, Baochang

    2015-05-01

    A rapid, sensitive, and reliable analytical method based on ultra high performance liquid chromatography with tandem mass spectrometry has been developed for the simultaneous determination of fangchinoline and tetrandrine in rat plasma. Plasma samples were pretreated by protein precipitation with acetonitrile. The analysis was performed on a C18 reversed-phase ultra high performance liquid chromatography column (2.1 mm × 100 mm, 3.5 μm, Agilent), and the flow rate was set at 0.4 mL/min. Under the experimental conditions, extraction recoveries from plasma were 68.1-72.8% for fangchinoline and 69.2-76.5% for tetrandrine. The plasma concentrations of tetrandrine and fangchinoline in rats at assigned time points were all successfully detected through exactly validated method. Good linearities were obtained in the range of 0.92-184 ng/mL for tetrandrine and in the range of 0.83-166 ng/mL for fangchinoline. The intra- and interday precisions for both analytes were within 11.1% and the accuracies were within the range of -10.7 to 11.3%. The developed method was then successfully applied to investigate the pharmacokinetic properties of these two alkaloids after oral administration of Stephania tetrandra S. Moore extracts and Fangji Huangqi Tang. The comparative results provided a meaningful basis for a better understanding of the practical value of the compatibility theory of traditional Chinese medicine in the clinic. PMID:25645647

  15. Design, Development and Evaluation of VirtualAlps 1.0 and 2.0: Virtual Field Guides for teaching Levels 5 and 6 Geoscience at Liverpool John Moores University, UK

    NASA Astrophysics Data System (ADS)

    Stott, Tim; Litherland, Kate; Morris, Simon; Nuttall, Anne-Marie

    2013-04-01

    Virtual Field Guides (VFGs) developed at Liverpool John Moores University (LJMU) have been used in teaching geosciences for around ten years. This paper briefly reviews: VirtualAlps 1.0 developed for level 5 undergraduates; and then focuses on VirtualALps 2.0, a new semantic web based VFG for level 6 teaching, developed in a partnership between an academic and a technical team as part of the Ensemble project. In VirtualAlps 2.0 students use faceted browsing tools to make selections of resources, as a result of which relationships between them are highlighted, but not explicitly labelled. The range of sources of information - some from the tutor's own research archive, some sourced from elsewhere on the internet - are used by students to prepare a report on the feasibility and environmental impact of a proposed hydroelectric power dam in a Swiss Alpine valley. This requires students to analyse visual and numeric data alongside secondary literature, but also to be aware of the underlying concepts which form the associations between the different resources. This tool is designed for students to have their first taste of preparing an 'authentic' report, and the ways in which the semantic technologies can support professional practice in geoscience subjects will be discussed.

  16. 33 CFR 401.10 - Mooring lines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... hand spliced eye or Flemish type mechanical spliced eye of not less than 2.4 m long for wire lines and 1.8 m long spliced eye for approved synthetic lines; (4) Have sufficient strength to check...

  17. 33 CFR 401.10 - Mooring lines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... hand spliced eye or Flemish type mechanical spliced eye of not less than 2.4 m long for wire lines and 1.8 m long spliced eye for approved synthetic lines; (4) Have sufficient strength to check...

  18. 33 CFR 401.43 - Mooring table.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....43 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF... Beauharnois Lower Pool Upper Wiley-Dondero Iroquois Snell Eisenhower Iroquois Locks: Upbound Port Port Starboard Starboard Starboard Starboard Port. Downbound Starboard Starboard Port Port Port Port...

  19. 33 CFR 401.43 - Mooring table.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... wall or lock as shown in the table to this section. South Shore St. Lambert Cote St. Catharine.... Tieup walls: Upbound ...do ...do ...do Port Starboard Starboard ...Do. Downbound Port Port Starboard.... Tieup walls: Upbound Starboard Starboard ...do Starboard ...do Starboard Port or starboard....

  20. 33 CFR 401.43 - Mooring table.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... wall or lock as shown in the table to this section. South Shore St. Lambert Cote St. Catharine.... Tieup walls: Upbound ...do ...do ...do Port Starboard Starboard ...Do. Downbound Port Port Starboard.... Tieup walls: Upbound Starboard Starboard ...do Starboard ...do Starboard Port or starboard....

  1. 33 CFR 401.43 - Mooring table.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... wall or lock as shown in the table to this section. South Shore St. Lambert Cote St. Catharine.... Tieup walls: Upbound ...do ...do ...do Port Starboard Starboard ...Do. Downbound Port Port Starboard.... Tieup walls: Upbound Starboard Starboard ...do Starboard ...do Starboard Port or starboard....

  2. 33 CFR 401.43 - Mooring table.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... wall or lock as shown in the table to this section. South Shore St. Lambert Cote St. Catharine.... Tieup walls: Upbound ...do ...do ...do Port Starboard Starboard ...Do. Downbound Port Port Starboard.... Tieup walls: Upbound Starboard Starboard ...do Starboard ...do Starboard Port or starboard....

  3. Capable Exascale and beyond Moore's Law

    NASA Astrophysics Data System (ADS)

    Simon, Horst

    2014-04-01

    The development of an exascale computing capability with machines capable of executing O(1018) operations per second by the end of the decade will be characterized by significant and dramatic changes in computing hardware architecture from current (2014) petascale high-performance computers. From the perspective of computational science, this will be at least as disruptive as the transition from vector supercomputing to parallel supercomputing that occurred in the 1990s. This was one of the findings of a 2010 workshop on crosscutting technologies for exascale computing. The impact of these architectural changes on future applications development for the computational sciences community can now be anticipated in very general terms. While the community has been investigating the road to exascale worldwide in the last several years, there are still several barriers that need to be overcome to obtain general purpose exascale performance. Unfortunately there has been not as much progress been made, as one would have hope five or six years ago. In this presentation I will first address what is referred to as capable exascale computing and differentiate it from LINPACK exascale. I will repeat my assertion that LINPACK exascale will not be happening before 2020, and if it were, it would be inconsequential for progress in computational science. While the HPC community is working towards overcoming the barriers to capable exascale, there has been recently new progress in technologies and computational models that go beyond the CMOS based semiconductor devices and the traditional von Neumann architecture. I will highlight some recent results on these experimental machines, and assess their potential for HPC in the era past the "capable exascale".

  4. Beyond Moore's law: towards competitive quantum devices

    NASA Astrophysics Data System (ADS)

    Troyer, Matthias

    2015-05-01

    A century after the invention of quantum theory and fifty years after Bell's inequality we see the first quantum devices emerge as products that aim to be competitive with the best classical computing devices. While a universal quantum computer of non-trivial size is still out of reach there exist a number commercial and experimental devices: quantum random number generators, quantum simulators and quantum annealers. In this colloquium I will present some of these devices and validation tests we performed on them. Quantum random number generators use the inherent randomness in quantum measurements to produce true random numbers, unlike classical pseudorandom number generators which are inherently deterministic. Optical lattice emulators use ultracold atomic gases in optical lattices to mimic typical models of condensed matter physics. In my talk I will focus especially on the devices built by Canadian company D-Wave systems, which are special purpose quantum simulators for solving hard classical optimization problems. I will review the controversy around the quantum nature of these devices and will compare them to state of the art classical algorithms. I will end with an outlook towards universal quantum computing and end with the question: which important problems that are intractable even for post-exa-scale classical computers could we expect to solve once we have a universal quantum computer?

  5. Patrick Moore's Data Book of Astronomy

    NASA Astrophysics Data System (ADS)

    Moore, Patrick; Rees, Robin

    2011-02-01

    1. The Solar System; 2. The Sun; 3. The Moon; 4. Mercury; 5. Venus; 6. Earth; 7. Mars; 8. The asteroid belt; 9. Jupiter; 10. Saturn; 11. Uranus; 12. Neptune; 13. Beyond Neptune: the Kuiper Belt; 14. Comets; 15. Meteors; 16. Meteorites; 17. Glows and atmospheric effects; 18. The stars; 19. Stellar spectra and evolution; 20. Extrasolar planets; 21. Double stars; 22. Variable stars; 23. Stellar clusters; 24. Nebulae; 25. The Galaxy; 26. The evolution of the Universe; 27. The constellations; 28. The star catalogue; 29. Telescopes and observatories; 30. Non-optical astronomy; 31. The history of astronomy; 32. Astronomers; 33. Glossary; Index.

  6. Patrick Moore's Data Book of Astronomy

    NASA Astrophysics Data System (ADS)

    Moore, Patrick; Rees, Robin

    2014-01-01

    1. The Solar System; 2. The Sun; 3. The Moon; 4. Mercury; 5. Venus; 6. Earth; 7. Mars; 8. The asteroid belt; 9. Jupiter; 10. Saturn; 11. Uranus; 12. Neptune; 13. Beyond Neptune: the Kuiper Belt; 14. Comets; 15. Meteors; 16. Meteorites; 17. Glows and atmospheric effects; 18. The stars; 19. Stellar spectra and evolution; 20. Extrasolar planets; 21. Double stars; 22. Variable stars; 23. Stellar clusters; 24. Nebulae; 25. The Galaxy; 26. The evolution of the Universe; 27. The constellations; 28. The star catalogue; 29. Telescopes and observatories; 30. Non-optical astronomy; 31. The history of astronomy; 32. Astronomers; 33. Glossary; Index.

  7. 33 CFR 401.10 - Mooring lines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... hand spliced eye or Flemish type mechanical spliced eye of not less than 2.4 m long for wire lines and 1.8 m long spliced eye for approved synthetic lines; (4) Have sufficient strength to check...

  8. Sitterly, Charlotte Emma Moore (1898-1990)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astrophysicist and atomic physicist, worked with HENRY NORRIS RUSSELL at Princeton on binary stars and their masses. She worked at Mount Wilson with Charles E St John and HAROLD BABCOCK analysing the atomic lines in the sunspot spectrum. At the National Bureau of Standards and the Naval Research Laboratory she analysed laboratory data on the solar spectrum and the atomic data by which spectral li...

  9. The Moore Method and the Constructivist Theory of Learning: Was R. L. Moore a Constructivist?

    ERIC Educational Resources Information Center

    Barrett, Lida K.; Long, B. Vena

    2012-01-01

    Constructivism is currently a hotly debated topic, with proponents and opponents equally adamant and emotional with respect to their viewpoints. Many misconceptions exist on both sides of the debate, and misuses of terminology and attribution are rampant. Constructivism is a theory of learning, not a particular approach to instruction and not a…

  10. Tailoring Modified Moore Method Techniques to Liberal Arts Mathematics Courses

    ERIC Educational Resources Information Center

    Hitchman, Theron J.; Shaw, Douglas

    2015-01-01

    Inquiry-based learning (IBL) techniques can be used in mathematics courses for non-majors, such as courses required for liberal arts majors to fulfill graduation requirements. Unique challenges are discussed, followed by adaptations of IBL techniques to overcome those challenges.

  11. Moore's law, Dabbawalas, and pediatric cardiac care in Sri Lanka

    PubMed Central

    Samarasinghe, Duminda

    2015-01-01

    Sri Lanka is an island nation in Indian Ocean that provides free healthcare to all citizens through government healthcare system. It has commendable health indices in the region. Pediatric cardiac services have rapidly progressed over past few years helping to further bring down infant and under-five mortality rates. Lady Ridgeway Hospital for Children (LRH) is the only tertiary care referral center for children with heart disease in the country. Currently it performs approximately 1,000 cardiac catheterizations and 1,000 cardiac surgeries every year. Target is to double the surgical output to treat all children with heart diseases in a timely and appropriate manner. Being a middle-income country, this is not an easy task. Technology used in diagnosis and treatment of congenital heart diseases is rapidly advancing with its price tag. In such a setting, it is challenging to proceed to achieve this target in a resource-limited environment. PMID:26085764

  12. Moore's law, Dabbawalas, and pediatric cardiac care in Sri Lanka.

    PubMed

    Samarasinghe, Duminda

    2015-01-01

    Sri Lanka is an island nation in Indian Ocean that provides free healthcare to all citizens through government healthcare system. It has commendable health indices in the region. Pediatric cardiac services have rapidly progressed over past few years helping to further bring down infant and under-five mortality rates. Lady Ridgeway Hospital for Children (LRH) is the only tertiary care referral center for children with heart disease in the country. Currently it performs approximately 1,000 cardiac catheterizations and 1,000 cardiac surgeries every year. Target is to double the surgical output to treat all children with heart diseases in a timely and appropriate manner. Being a middle-income country, this is not an easy task. Technology used in diagnosis and treatment of congenital heart diseases is rapidly advancing with its price tag. In such a setting, it is challenging to proceed to achieve this target in a resource-limited environment. PMID:26085764

  13. Give Me Moor Proof: Othello in Seventh Grade

    ERIC Educational Resources Information Center

    Landay, Eileen

    2005-01-01

    William Shakespeare's "Othello" can be used as a project for drama study that might be culminated into a performance not of the play but of the writing and interpretive work completed by the students. The works of Theresa Toomey Fox, her Othello curriculum and the review of research and theory that supports an arts integration approach to teaching…

  14. The Hydrostatic Mooring System. Quarterly Report for the Period April-June 2000

    SciTech Connect

    Korsgaard, Jens

    2000-07-15

    The following topics are summarized for the 2nd quarter of 2000: (1) We amended the structural design of the buoy, moving the horizontal bulkhead from the bottom to the top of the buoy. (2) We designed the main bearing using Hilman Rollers. We discarded a parallel design using Lubron slide bearings due to concerns about keeping dirt out of the sliding surfaces. (3) We performed a preliminary failure tree risk analysis for the system as required by ABS. (4) We made various drawings of the system and sub-components.

  15. Tourist Attraction: The Moore Library of Lexington, Michigan, 1903-1953

    ERIC Educational Resources Information Center

    Wiegand, Wayne A.

    2011-01-01

    This essay challenges traditional assumptions about the small-town American public library and the roles it has played in its community. Conventional thinking and professional rhetoric grounded on a "user in the life of the library" perspective identifies the public library as a neutral agency "essential to democracy" that guards against…

  16. 33 CFR 401.12 - Minimum requirements-mooring lines and fairleads.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... shall be led through closed chocks or fairleads acceptable to the Manager and the Corporation. (i) One... synthetic line or led from a capstan, winch drum or windlass to an approved fairlead for a wire line. (2... power operated winches. (iii) All lines shall be led through a type of fairlead acceptable to...

  17. Letter to President Harry Truman about the Murder of Harry T. Moore

    ERIC Educational Resources Information Center

    Jones, Megan

    2011-01-01

    In late December of 1951, a news story out of Mims, Florida, shocked the nation. The story contained elements of prejudice, discrimination, injustice, lynching, rape, bombings, and murder. The story not only made headlines across the country, but also the world. On the evening of December 25, a bomb was placed under the floor joists of the bedroom…

  18. The complete chloroplast genome sequence of Lilium hansonii Leichtlin ex D.D.T.Moore.

    PubMed

    Kim, Kyunghee; Hwang, Yoon-Jung; Lee, Sang-Choon; Yang, Tae-Jin; Lim, Ki-Byung

    2016-09-01

    Lilium hansonii is a lily species native to Korea and an important wild species for lily breeding. The chloroplast genome of L. hansonii was completed by de novo assembly using the small amount of whole genome sequencing data. The chloroplast genome of L. hansonii was 152 655 bp long and consisted of large single copy region (82 051 bp), small single copy region (17 620 bp) and a pair of inverted repeat regions (26 492 bp). A total of 115 genes were annotated, which included 81 protein-coding genes, 30 tRNA genes and 4 rRNA genes. Phylogenetic analysis with the reported chloroplast genomes revealed that L. hansonii is most closely related to L. superbum (Turk's-cap lily) and L. longiflorum (Easter lily). PMID:26404645

  19. First year of of an ocean-atmosphere mooring in the Senegalese coastal upwelling.

    NASA Astrophysics Data System (ADS)

    Lazar, Alban; Dausse, Denis; del Rey, Marta Martin; Diakhaté, Moussa; Machu, Éric; Faye, Saliou; Dagorne, Dominique; Gaye, Amadou

    2016-04-01

    The Joint International Laboratory ECLAIRS set up an oceanographic and meteorological buoy, dedicated to monitoring and analysis of the short and long-term changes in climate, atmosphere and marine environment within the Senegal upwelling. The buoy "MELAX" was deployed early 2015 in the heart of the Senegalese upwelling by 30m-depth at (14°20'N, 17°14'W). Data collected are, for the atmosphere, surface wind, solar radiation, humidity and rain, and for the ocean, temperatures, salinity, and currents (from the surface to the bottom) and oxygen. We present the first year of observations, in particular the relationship between wind, sea surface temperatures, hydrology and current, but also briochemistry. Satellite and model data are used to provide a larger-scale context to the punctual observations.

  20. 76 FR 45867 - Michael S. Moore, M.D.; Suspension of Registration

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-01

    ...., 75 FR 8194, 8236 (2010)). DEA has also repeatedly held that a registrant's candor during both an... accepted responsibility as well as the appropriate sanction. Robert F. Hunt, D.O., 75 FR 49995, 50004 (2010); see also Hassman, 75 FR at 8236 (quoting Hoxie v. DEA, 419 F.3d 477, 483 (6th Cir. 2005)...

  1. OTEC biofouling, corrosion, and materials study from a moored platform at Punta Tuna, Puerto Rico

    SciTech Connect

    Sasscer, D.S.; Tosteson, T.R.; Morgan, T.O.

    1981-08-01

    During the 404 days between 29 January 1980 and 10 March 1981 the Center conducted an uninterrupted biofouling test at Punta Tuna, Puerto Rico, of periodically cleaned, OTEC evaporator tubes. The fouling resistance (R/sub f), total surface carbon and nitrogen content, ATP, and the wet film thickness (WFT) were determined throughout the test. Visual observations of the fouling film were made by light sectioning and scanning microscopy, and at the end of the test, a study was made of the macrofouling of the flow system. The results of thest tests indicate that a base layer of bacteria and exudated polysaccharides enhance microbial adhesion and thereby create an environment conducive to rapid film growth. Fouling rates (dR/sub f//dt) for aluminum were generally higher than for titanium but they were linear for both materials and did not exceed 0.3(10/sup -4/)ft/sup 2/-h-/sup 0/F/Btu-day for either material during the 13-month study. Excellent correlation was found to exist between R/sub f/ and WFT which supports the hypothesis that it is the stagnant film of water entrapped by bacteria which is largely responsible for the insulating properties of the biofilm. The macrofouling study identified 61 species of benthic invertebrates representing ten phyla growing in those parts of the flow system, where flow was less than 3 fps but no macrofouling where the flow velocity significantly exceeded 3 fps.

  2. Eddy-Kuroshio interaction processes revealed by mooring observations off Taiwan and Luzon

    NASA Astrophysics Data System (ADS)

    Tsai, Cheng-Ju; Andres, Magdalena; Jan, Sen; Mensah, Vigan; Sanford, Thomas B.; Lien, Ren-Chieh; Lee, Craig M.

    2015-10-01

    The influence and fate of westward propagating eddies that impinge on the Kuroshio were observed with pressure sensor-equipped inverted echo sounders (PIESs) deployed east of Taiwan and northeast of Luzon. Zero lag correlations between PIES-measured acoustic travel times and satellite-measured sea surface height anomalies (SSHa), which are normally negative, have lower magnitude toward the west, suggesting the eddy-influence is weakened across the Kuroshio. The observational data reveal that impinging eddies lead to seesaw-like SSHa and pycnocline depth changes across the Kuroshio east of Taiwan, whereas analogous responses are not found in the Kuroshio northeast of Luzon. Anticyclones intensify sea surface and pycnocline slopes across the Kuroshio, while cyclones weaken these slopes, particularly east of Taiwan. During the 6 month period of overlap between the two PIES arrays, only one anticyclone affected the pycnocline depth first at the array northeast of Luzon and 21 days later in the downstream Kuroshio east of Taiwan.

  3. Novel two-stage piezoelectric-based ocean wave energy harvesters for moored or unmoored buoys

    NASA Astrophysics Data System (ADS)

    Murray, R.; Rastegar, J.

    2009-03-01

    Harvesting mechanical energy from ocean wave oscillations for conversion to electrical energy has long been pursued as an alternative or self-contained power source. The attraction to harvesting energy from ocean waves stems from the sheer power of the wave motion, which can easily exceed 50 kW per meter of wave front. The principal barrier to harvesting this power is the very low and varying frequency of ocean waves, which generally vary from 0.1Hz to 0.5Hz. In this paper the application of a novel class of two-stage electrical energy generators to buoyant structures is presented. The generators use the buoy's interaction with the ocean waves as a low-speed input to a primary system, which, in turn, successively excites an array of vibratory elements (secondary system) into resonance - like a musician strumming a guitar. The key advantage of the present system is that by having two decoupled systems, the low frequency and highly varying buoy motion is converted into constant and much higher frequency mechanical vibrations. Electrical energy may then be harvested from the vibrating elements of the secondary system with high efficiency using piezoelectric elements. The operating principles of the novel two-stage technique are presented, including analytical formulations describing the transfer of energy between the two systems. Also, prototypical design examples are offered, as well as an in-depth computer simulation of a prototypical heaving-based wave energy harvester which generates electrical energy from the up-and-down motion of a buoy riding on the ocean's surface.

  4. VizieR Online Data Catalog: JCMT Plane Survey: l=30° field (Moore+, 2015)

    NASA Astrophysics Data System (ADS)

    Moore, T. J. T.; Plume, R.; Thompson, M. A.; Parsons, H.; Urquhart, J. S.; Eden, D. J.; Dempsey, J. T.; Morgan, L. K.; Thomas, H. S.; Buckle, J.; Brunt, C. M.; Butner, H.; Carretero, D.; Chrysostomou, A.; Devilliers, H. M.; Fich, M.; Hoare, M. G.; Manser, G.; Mottram, J. C.; Natario, C.; Olguin, F.; Peretto, N.; Polychroni, D.; Redman, R. O.; Rigby, A. J.; Salji, C.; Summers, L. J.; Berry, D.; Currie, M. J.; Jenness, T.; Pestalozzi, M.; Traficante, A.; Bastien, P.; Difrancesco, J.; Davis, C. J.; Evans, A.; Friberg, P.; Fuller, G. A.; Gibb, A. G.; Gibson, S.; Hill, T.; Johnstone, D.; Joncas, G.; Longmore, S. N.; Lumsden, S. L.; Martin, P. G.; Nguyen Luong, Q.; Pineda, J. E.; Purcell, C.; Richer, J. S.; Schieven, G. H.; Shipman, R.; Spaans, M.; Taylor, A. R.; Viti, S.; Weferling, B.; White, G. J.; Zhu, M.

    2016-06-01

    JPS uses the wide-field submm-band bolometer camera SCUBA-2 (the Submm Common-User Bolometer Array 2) in the 850um band at a spatial resolution of 14.5-arcsec. The 850um survey data presented in this paper cover the l=30° field of the JPS and were observed between 2012 June and 2013 October. The 11 tiles making up the field were observed on average three times each. A strategy of minimum elevation limits for given atmospheric opacity bands within the allocated range was adopted, in order to minimize variations in the resulting noise in each repeated tile. (1 data file).

  5. Cardiovascular effects of Helichrysum ceres S Moore [Asteraceae] ethanolic leaf extract in some experimental animal paradigms

    PubMed Central

    Musabayane, Cephas T; Kamadyaapa, Dave R; Gondwe, Mavuto; Moodley, Kogi; Ojewole, John AO

    2008-01-01

    Summary Summary The aim of this study was to examine some in vivo and in vitro cardiovascular effects of Helichrysum ceres leaf ethanolic extract (HCE) in experimental animal paradigms. The acute effects of HCE on blood pressure were studied in anaesthetised normotensive male Wistar rats challenged with intravenous hypotonic saline infusion after a 3.5-hour equilibration for four hours of one-hour control, 1.5-hour treatment and 1.5-hour recovery periods. HCE was added to the infusate during the treatment period. Sub-chronic hypotensive effects of HCE were examined in weanling Dahl salt-sensitive (DSS) genetically hypertensive rats, which progressively develop hypertension with age, treated with HCE (80 mg/kg) every third consecutive day for seven weeks. Isolated atrial muscle strips, portal veins and descending thoracic aortic rings of healthy normotensive Wistar rats were used to investigate the vascular effects of HCE. Acute HCE administration caused a significant (p < 0.05) fall in blood pressure in the normotensive anaesthetised Wistar rats. DSS hypertensive rats treated with HCE displayed low arterial blood pressure and heart rate values from weeks five to seven. HCE produced concentration-dependent negative inotropic and chronotropic effects on rat isolated electrically driven left, and spontaneously beating right atrial muscle preparations, respectively. HCE also evoked concentration-dependent relaxation responses of endothelium-intact aortic rings and portal veins isolated from healthy normotensive Wistar rats. The vasorelaxant effects of HCE in intact aortic rings were significantly reduced, but not completely abolished by adding endothelial-derived factor (EDRF) inhibitor, L-NAME, suggesting that the vasorelaxant effect of the extract is mediated via EDRF-dependent and independent mechanisms. The results of the study suggest that the hypotensive action of HCE is elicited, in part, directly by decreasing myocardial contractile performance and total peripheral vascular resistance due to its negative inotropic and chronotropic effects on rat isolated atrial muscle strips; and vasorelaxant effects on isolated vascular smooth muscles. The observed cardiovascular effects of HCE partly support the basis for its use in the management of high blood pressure in folkloric medicine. PMID:18997985

  6. 75 FR 82243 - Security Zones; Moored Cruise Ships, Port of San Diego, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ...: Documents indicated in this preamble as being available in the docket are part of docket USCG-2010-1129 and are available online by going to http://www.regulations.gov , inserting USCG-2010-1129 in...

  7. 33 CFR 401.12 - Minimum requirements-mooring lines and fairleads.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... location on the ship side where the beam is at least 90% of the full beam of the vessel Shall be at a location on the ship side where the beam is at least 90% of the full beam of the vessel. More than 180...

  8. 33 CFR 401.12 - Minimum requirements-mooring lines and fairleads.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... location on the ship side where the beam is at least 90% of the full beam of the vessel Shall be at a location on the ship side where the beam is at least 90% of the full beam of the vessel. More than 180...

  9. 33 CFR 401.12 - Minimum requirements-mooring lines and fairleads.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 4 100 m or more but not more than 180 m Shall be at a location on the ship side where the beam is at least 90% of the full beam of the vessel Shall be at a location on the ship side where the beam is at least 90% of the full beam of the vessel. More than 180 m but not more than 222.5 m Between 20 m & 50...

  10. Challenges in Simulation of Aerodynamics, Hydrodynamics, and Mooring-Line Dynamics of Floating Offshore Wind Turbines

    SciTech Connect

    Matha, D.; Schlipf, M.; Cordle, A.; Pereira, R.; Jonkman, J.

    2011-10-01

    This paper presents the current major modeling challenges for floating offshore wind turbine design tools and describes aerodynamic and hydrodynamic effects due to rotor and platform motions and usage of non-slender support structures.

  11. Numerical Analysis of Quasiholes of the Moore-Read Wave Function

    NASA Astrophysics Data System (ADS)

    Baraban, M.; Zikos, G.; Bonesteel, N.; Simon, S. H.

    2009-08-01

    We demonstrate numerically that non-Abelian quasihole (qh) excitations of the ν=5/2 fractional quantum Hall state have some of the key properties necessary to support quantum computation. We find that as the qh spacing is increased, the unitary transformation which describes winding two qh’s around each other converges exponentially to its asymptotic limit and that the two orthogonal wave functions describing a system with four qh’s become exponentially degenerate. We calculate the length scales for these two decays to be ξU≈2.7ℓ0 and ξE≈2.3ℓ0, respectively. Additionally, we determine which fusion channel is lower in energy when two qh’s are brought close together.

  12. Saving Moore's Law Down To 1 nm Channels With Anisotropic Effective Mass.

    PubMed

    Ilatikhameneh, Hesameddin; Ameen, Tarek; Novakovic, Bozidar; Tan, Yaohua; Klimeck, Gerhard; Rahman, Rajib

    2016-01-01

    Scaling transistors' dimensions has been the thrust for the semiconductor industry in the last four decades. However, scaling channel lengths beyond 10 nm has become exceptionally challenging due to the direct tunneling between source and drain which degrades gate control, switching functionality, and worsens power dissipation. Fortunately, the emergence of novel classes of materials with exotic properties in recent times has opened up new avenues in device design. Here, we show that by using channel materials with an anisotropic effective mass, the channel can be scaled down to 1 nm and still provide an excellent switching performance in phosphorene nanoribbon MOSFETs. To solve power consumption challenge besides dimension scaling in conventional transistors, a novel tunnel transistor is proposed which takes advantage of anisotropic mass in both ON- and OFF-state of the operation. Full-band atomistic quantum transport simulations of phosphorene nanoribbon MOSFETs and TFETs based on the new design have been performed as a proof. PMID:27538849

  13. Moored instrument for time series studies of primary production and other microbial rate processes

    SciTech Connect

    Taylor, C.D.; Doherty, K.W.

    1993-01-20

    The goal of this project is to build and test a Time Series Submersible Incubation Device (TS-SID) capable of the autonomous in situ measurement of phytoplankton production and other rate processes for a period of up at least three months. The instrument is conceptually based on a recently constructed Submersible Incubation Device (SID). The TS-SID is to possess the ability to periodically incubate samples in the presence of an appropriate tracer, and to store 94 chemically fixed subsamples for later analysis. The TS-SID has been designed to accurately simulate the natural environment, and to avoid trace metal contamination and physical damage to cells. Devices for biofouling control of internal and external surfaces are to be incorporated into the instrument. After the time series capabilities of the instrument have been successfully evaluated by medium-term coastal time series studies (up to one month), longer-term coastal time series studies (2-3 months) will be conducted to evaluate the biofouling prevention measures that have been used with the instrument.

  14. Moored instrument for time series studies of primary production and other microbial rate processes. Progress report

    SciTech Connect

    Taylor, C.D.; Doherty, K.W.

    1993-01-20

    The goal of this project is to build and test a Time Series Submersible Incubation Device (TS-SID) capable of the autonomous in situ measurement of phytoplankton production and other rate processes for a period of up at least three months. The instrument is conceptually based on a recently constructed Submersible Incubation Device (SID). The TS-SID is to possess the ability to periodically incubate samples in the presence of an appropriate tracer, and to store 94 chemically fixed subsamples for later analysis. The TS-SID has been designed to accurately simulate the natural environment, and to avoid trace metal contamination and physical damage to cells. Devices for biofouling control of internal and external surfaces are to be incorporated into the instrument. After the time series capabilities of the instrument have been successfully evaluated by medium-term coastal time series studies (up to one month), longer-term coastal time series studies (2-3 months) will be conducted to evaluate the biofouling prevention measures that have been used with the instrument.

  15. Experimental Investigation of Cylindrical Floating Breakwater Performance with different mooring configurations

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Floating breakwaters are typically used on limited-fetch water bodies, such as lakes, reservoirs, and bays, where wavelengths are relatively short. They are also often preferred for sites with large water level changes. Common uses are to protect small marinas or for shoreline erosion control. While...

  16. Mobilities, Moorings and Boundary Marking in Developing Semantic Technologies in Educational Practices

    ERIC Educational Resources Information Center

    Edwards, Richard; Tracy, Fran; Jordan, Katy

    2011-01-01

    While much attention has been given to the changing spaces of education introduced by new technologies, the impact of spatial theory on the discussion of such education is less well developed. Drawing upon empirical evidence from the Ensemble research project, this article examines spatially some of the possibilities and constraints that arise in…

  17. Validation of SeaWiFS ocean color satellite data using a moored databuoy

    NASA Astrophysics Data System (ADS)

    Pinkerton, Matthew H.; Lavender, Samantha J.; Aiken, James

    2003-05-01

    The Plymouth Marine Bio-Optical Databuoy (PlyMBODy) was deployed in the western English Channel to measure Lwn over an extended period of time in order to vicariously validate ocean color data from the NASA Sea-Viewing Wide Field-of-View Sensor (SeaWiFS). Several experiments have shown that the buoy had radiometric accuracy similar to standard sea-going optical profiling equipment (about ±8%). There were 15 match-ups of good quality SeaWiFS and PlyMBODy data during 10 months of deployment between May 1997 and September 1998. Differences between PlyMBODy measurements of Lwn and SeaWiFS data (processed using SeaDAS version 4.1) were found to be spectrally variable and sometimes large. The differences were small in the blue-green and green bands (SeaWiFS bands 3-5, 490, 510, and 555 nm) where the biases were <3% and the mean absolute differences were ˜20%. Bands 1, 2, and 6 (412, 443, and 670 nm) were significantly underestimated by SeaWiFS: the average differences were 55%, 19%, and 58%, respectively. The mean absolute differences were also much larger in these bands (30-77%). SeaWiFS radiometric measurements were generally sufficiently accurate to estimate chlorophyll-a concentration using OC4v4 to within the mission target of ±35% but with a high bias of ˜8%, though the performance of the algorithm itself was not tested. Bias and scatter of SeaWiFS Lwn measurements relative to PlyMBODy measurements were much poorer when SeaDAS version 3.3p5, rather than version 4.1, was used. The upgrade from SeaDAS 4.0p3 to 4.1 made little difference to the agreement.

  18. VizieR Online Data Catalog: IR spectra and optical constants of nitrile ices (Moore+, 2010)

    NASA Astrophysics Data System (ADS)

    Moore, M. H.; Ferrante, R. F.; Moore, W. J.; Hudson, R.

    2010-11-01

    Spectra and optical constants of nitrile ices known or suspected to be in Titan's atmosphere are presented from 2.0 to 333.3um (~5000-30/cm). These results are relevant to the ongoing modeling of Cassini CIRS observations of Titan's winter pole. Ices studied are: HCN, hydrogen cyanide; C2N2, cyanogen; CH3CN, acetonitrile; C2H5CN, propionitrile; and HC3N, cyanoacetylene. For each of these molecules, we also report new cryogenic measurements of the real refractive index, n, determined in both the amorphous and crystalline phases at 670nm. These new values have been incorporated into our optical constant calculations. Spectra were measured and optical constants were calculated for each nitrile at a variety of temperatures, including, but not limited to, 20, 35, 50, 75, 95, and 110K, in both the amorphous phase and the crystalline phase. This laboratory effort used a dedicated FTIR spectrometer to record transmission spectra of thin-film ice samples. Laser interference was used to measure film thickness during condensation onto a transparent cold window attached to the tail section of a closed-cycle helium cryostat. Optical constants, real (n) and imaginary (k) refractive indices, were determined using Kramers-Kronig analysis. Our calculation reproduces the complete spectrum, including all interference effects. (20 data files).

  19. Society News: RAS Fellows are honoured with awards; Patrick Moore Medal; Best theses win prizes; New Fellows

    NASA Astrophysics Data System (ADS)

    2011-08-01

    Congratulations to several Fellows of the RAS who have received prestigious awards this year. Congratulations to the winners of the annual prizes for the best PhD theses in astronomy and geophysics, awarded by the RAS and sponsored by Wiley-Blackwell. Winners receive a cheque for £1000, runners-up £50.

  20. Not looking where you are leaping: a novel method of oriented travel in the caterpillar Calindoea trifascialis (Moore) (Lepidoptera: Thyrididae).

    PubMed

    Humphreys, Kim; Darling, D Christopher

    2013-10-23

    The prepupation caterpillar of the Southeast Asian moth Calindoea trifascialis constructs a leaf shelter that jumps across the ground using a jumping method novel among the insects. We found that movement path direction was correlated to the direction opposite to the most intense light. Correlated random walk (CRW) analyses found net squared displacements higher than predicted by a CRW, and fractal dimension analysis indicated straighter paths at large spatial scales. Rearing experiments showed high mortality from predation on the ground, but higher mortality resulted from sun exposure. We interpret jumping path orientation as an efficient search strategy to find shade in a variable landscape, given limited perception, in the presence of overheating and desiccation risks. PMID:23966594

  1. An Extension of the Findings of Moore, Peterson, and Furstenberg (1986) regarding Family Sexual Communication and Adolescent Sexual Behavior.

    ERIC Educational Resources Information Center

    Fisher, Terri D.

    1989-01-01

    Used variables of gender and parental sexual attitudes to categorize college students (N=349) and their parents to examine relationship between family communication about sexuality and adolescent sexual behavior, attitudes, knowledge and contraception use. Found sexual behavior of females correlated with parent-child communication; sexual…

  2. Performance of SALM (single anchor leg mooring)/ shuttle-tanker production/transportation systems in a hostile environment

    SciTech Connect

    Abramovich, D.

    1981-01-01

    Development of the Hibernia field oil production/ transportation system presents design challenges and economic considerations that closely resemble experiences encountered in developing the Thistle field in the UK sector of the North Sea. The principal similarities between these 2 development plans lie in the environmental conditions that prevail in the Hibernia field and the North Sea and in the economic benefits realizable by bringing in oil production at the earliest possible point in the oil field development program. The design concept, installation procedure, and transport operation used for initially handling the Thistle field production may be valuable guidelines for implementing oil production and transportation systems in the Hibernia field.

  3. Laboratory simulation of the successive aerobic and anaerobic degradation of oil products in oil-contaminated high-moor peat

    NASA Astrophysics Data System (ADS)

    Tolpeshta, I. I.; Trofimov, S. Ya.; Erkenova, M. I.; Sokolova, T. A.; Stepanov, A. L.; Lysak, L. V.; Lobanenkov, A. M.

    2015-03-01

    A model experiment has been performed on the successive aerobic and anaerobic degradation of oil products in samples of oil-contaminated peat sampled from a pine-subshrub-sphagnum bog near the Sutormin oilfield pipeline in the Yamal-Nenets autonomous district. During the incubation of oil-contaminated peat with lime and mineral fertilizers under complete flooding, favorable conditions are created for the aerobic oxidation of oil products at the beginning of the experiment and, as the redox potential decreases, for the anaerobic degradation of oil products conjugated with the reduction of N5+ and S+6 and methanogenesis. From the experimental data on the dynamics of the pH; Eh; and the NO{3/-}, NO{2/-}, and SO{4/2-} concentrations in the liquid phase of the samples, it has been found that denitrifiers significantly contributed to the biodegradation of oil products under the experimental conditions. After the end of the experiment, the content of oil products in the contaminated samples decreased by 21-26%.

  4. Genetic diversity and structure in Mamey [P. sapota (Jacq.) H.E. Moore & Stearn] by using microsatellite markers

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The tropical plant Pouteria sapota (Jacq.) is known for its edible fruits that contain unique carotenoids, as well as for the fungitoxic, anti-inflamatory and anti-oxidant activity of extracts from its bark, leaves and roots, though its genetics is unknown. We did high-throughput sequencing of micr...

  5. Mooring in safe harbors. Proposed rules set out what's legal, what's not under Medicare fraud and abuse laws.

    PubMed

    MacKelvie, C F; Sanborn, A B

    1989-04-01

    The 1977 Fraud and Abuse Amendments, which prohibit business relationships that increase Medicare utilization, have created uncertainty among healthcare providers as to which commercial arrangements are legal and which are not. In response to this uncertainty, Congress enacted the Medicare and Medicaid Patient and Program Protection Act of 1987, which required the Department of Health and Human Services to develop regulations that would specify allowable practices. The regulations proposed Jan. 23, 1989, specify "safe harbors" from criminal and civil penalties in the following areas: sales of physician practices, rental agreements, investments by providers, and personal services and management contracts. In addition, the Fraud and Abuse Amendments exempted referrals arising out of a bona fide employment relationship, properly disclosed discounts, and group purchasing arrangements. The proposed regulations attempt to clarify these exemptions. Unfortunately, the proposals do little to calm a healthcare industry that is jumpy about which transactions are permitted and which are not. This is partly because the Internal Revenue Service, Health and Human Services, and the Department of Justice often issue conflicting pronouncements regarding prohibited business transactions by tax-exempt providers. PMID:10303395

  6. Spatial Heterogeneity in the Properties of High-Moor Peat Soils under Local Pyrogenesis in Northeastern Sakhalin

    NASA Astrophysics Data System (ADS)

    Lipatov, D. N.; Shcheglov, A. I.; Manakhov, D. V.; Brekhov, P. T.

    2016-02-01

    The structure and properties of oligotrophic peat, oligotrophic peat gley, and pyrogenic oligotrophic peat soils identified on a plot 0.5 km2 in area in the northeast of Sakhalin Island have been studied. The vertical distributions of physicochemical, chemical, and ecotoxicological parameters in the profiles of some bog soil groups have been considered. An increase in ash content, a less acid reaction, and a deficit of available nitrogen and potassium have been revealed in the upper horizons of pyrogenic soils. No accumulation of mobile heavy metals is manifested in the pyrogenic horizons of peat soils. Statistical parameters of the spatial variation in pHKCl and total acidity, as well as the contents of ash, available phosphorus, exchangeable potassium, ammonium and nitrate nitrogen, mobile heavy metals (Cr, Ni, Cu, Zn, Cd, Pb), and benzo[ a]pyrene, have been calculated for the moss and sublitter horizons. The variation coefficients are 30-100% for most of the studied parameters and reach 100-200% for available phosphorus; ammonium nitrogen; and mobile Ni, Cu, Zn, and Cd. An increase in the content of benzo[ a]pyrene, although without MPC exceedance, is noted in the moss of pyrogenic soils and the peat horizons untouched by fires.

  7. Unmanned Aerial Systems, Moored Balloons, and the U.S. Department of Energy ARM Facilities in Alaska

    NASA Astrophysics Data System (ADS)

    Ivey, Mark; Verlinde, Johannes

    2014-05-01

    The U.S. Department of Energy (DOE), through its scientific user facility, the Atmospheric Radiation Measurement (ARM) Climate Research Facility, provides scientific infrastructure and data to the international Arctic research community via its research sites located on the North Slope of Alaska. Facilities and infrastructure to support operations of unmanned aerial systems for science missions in the Arctic and North Slope of Alaska were established at Oliktok Point Alaska in 2013. Tethered instrumented balloons will be used in the near future to make measurements of clouds in the boundary layer including mixed-phase clouds. The DOE ARM Program has operated an atmospheric measurement facility in Barrow, Alaska, since 1998. Major upgrades to this facility, including scanning radars, were added in 2010. Arctic Observing Networks are essential to meet growing policy, social, commercial, and scientific needs. Calibrated, high-quality arctic geophysical datasets that span ten years or longer are especially important for climate studies, climate model initializations and validations, and for related climate policy activities. For example, atmospheric data and derived atmospheric forcing estimates are critical for sea-ice simulations. International requirements for well-coordinated, long-term, and sustained Arctic Observing Networks and easily-accessible data sets collected by those networks have been recognized by many high-level workshops and reports (Arctic Council Meetings and workshops, National Research Council reports, NSF workshops and others). The recent Sustaining Arctic Observation Network (SAON) initiative sponsored a series of workshops to "develop a set of recommendations on how to achieve long-term Arctic-wide observing activities that provide free, open, and timely access to high-quality data that will realize pan-Arctic and global value-added services and provide societal benefits." This poster will present information on opportunities for members of the arctic research community to make atmospheric measurements using unmanned aerial systems or tethered balloons.

  8. The Biggs and Moore Model in E-Learning: The Role of Motivation and Collaboration as Moderators

    ERIC Educational Resources Information Center

    Haverila, Matti J.

    2012-01-01

    The purpose of this paper is to report the findings of a research conducted to evaluate the effect of e-learning experience on students' perceived learning outcomes, and more specifically the role of motivation and collaboration as moderators between the e-learning experience and the learning outcome. The perceived learning outcome was measured…

  9. Distance Learning Students' Need: Evaluating Interactions from Moore's Theory of Transactional Distance

    ERIC Educational Resources Information Center

    Ustati, Rusmanizah; Hassan, Sharifah Sariah Syed

    2013-01-01

    This study draws on the experience from a focus group interviews under the distance learning programme known as "Program Pensiswazahan Guru" (PPG) organized by the Malaysian Ministry of Education in collaboration with local universities and institutes of education. Its purpose is to uncover students' perception about the platform…

  10. 33 CFR 149.650 - What are the requirements for single point moorings and their attached hoses?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., 2003, by any recognized classification society as defined in 46 CFR 8.100. Helicopter Fueling... designed for the protection of the environment and for durability under combined wind, wave, and current... appropriateness of a design may be shown by its compliance with standards generally used within the...

  11. 33 CFR 149.650 - What are the requirements for single point moorings and their attached hoses?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., 2003, by any recognized classification society as defined in 46 CFR 8.100. Helicopter Fueling... designed for the protection of the environment and for durability under combined wind, wave, and current... appropriateness of a design may be shown by its compliance with standards generally used within the...

  12. 33 CFR 149.650 - What are the requirements for single point moorings and their attached hoses?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., 2003, by any recognized classification society as defined in 46 CFR 8.100. Helicopter Fueling... designed for the protection of the environment and for durability under combined wind, wave, and current... appropriateness of a design may be shown by its compliance with standards generally used within the...

  13. Bacterial profiling of Saharan dust deposition in the Atlantic Ocean using sediment trap moorings – year one results

    NASA Astrophysics Data System (ADS)

    Munday, Chris; Brummer, Geert-Jan; van der Does, Michelle; Korte, Laura; Stuut, Jan-Berend

    2015-04-01

    Large quantities of dust are transported from the Sahara Desert across the Atlantic Ocean towards the Caribbean each year, with a large portion of it deposited in the ocean. This dust brings an array of minerals, nutrients and organic matter, both living and dead. This input potentially fertilizes phytoplankton growth, with resulting knock-on effects throughout the food chain. The input of terrestrial microbial life may also have an impact on the marine microbial community. The current multi-year project consists of a transect of floating dust collectors and sub-surface sediment traps placed at 12°N across the Atlantic Ocean. Sediment traps are located 1200m and 3500m below the sea surface and all are synchronized to collect samples for a period of two weeks. The aim is to understand the links between dust input and the bacterial community and how this relates to ocean productivity and the carbon cycle. The first set of sediment trap samples were recovered using the RV Pelagia in November 2013 with promising results. Results from 7 sediment traps (three at 1200m and four at 3500m) were obtained. In general, the total mass flux decreased as distance from the source increased and the upper traps generally held more material than those at 3500m. Denaturing Gradient Gel Electrophoresis (DGGE) was used as a screening technique, revealing highly varied profiles, with the upper (1200m) traps generally showing more variation throughout the year. Several samples have been submitted for high throughput DNA sequencing which will identify the variations in these samples.

  14. 33 CFR 149.570 - How is a platform, single point mooring, or submerged turret loading identified?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... port and the name or number identifying the structure, so that the information is visible: (1) From the water at all angles of approach to the structure; and (2) From aircraft on approach to the structure if the structure is equipped with a helicopter pad. (b) The information required in paragraph (a) of...

  15. 33 CFR 149.570 - How is a platform, single point mooring, or submerged turret loading identified?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... port and the name or number identifying the structure, so that the information is visible: (1) From the water at all angles of approach to the structure; and (2) From aircraft on approach to the structure if the structure is equipped with a helicopter pad. (b) The information required in paragraph (a) of...

  16. 33 CFR 149.570 - How is a platform, single point mooring, or submerged turret loading identified?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... port and the name or number identifying the structure, so that the information is visible: (1) From the water at all angles of approach to the structure; and (2) From aircraft on approach to the structure if the structure is equipped with a helicopter pad. (b) The information required in paragraph (a) of...

  17. 33 CFR 149.570 - How is a platform, single point mooring, or submerged turret loading identified?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... port and the name or number identifying the structure, so that the information is visible: (1) From the water at all angles of approach to the structure; and (2) From aircraft on approach to the structure if the structure is equipped with a helicopter pad. (b) The information required in paragraph (a) of...

  18. 33 CFR 149.570 - How is a platform, single point mooring, or submerged turret loading identified?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... port and the name or number identifying the structure, so that the information is visible: (1) From the water at all angles of approach to the structure; and (2) From aircraft on approach to the structure if the structure is equipped with a helicopter pad. (b) The information required in paragraph (a) of...

  19. Effect of the aqueous extract of Senecio biafrae (Oliv. & Hiern) J. Moore on sexual maturation of immature female rat

    PubMed Central

    2012-01-01

    Background Senecio biafrae (Asteraceae) is a medicinal plant widely used by traditional healers in the western region of Cameroon for the treatment of female infertility. This experiment was designed to evaluate the effect of the aqueous extract from leaves and stems of S. biafrae (AESb) on the onset of puberty and some biochemical and physiological parameters of reproduction in immature Wistar female rats. Methods Different doses of AESb were daily and orally administered to immature female rats (13 animals/group) for 30 days. At the end of the treatment period, six animal of each experimental group were sacrificed and their body, ovarian, uterus weight; uterine, ovarian protein or cholesterol level as well as data on puberty onset recorded. The remaining animals of each group were used for the fertility test and some gestational parameters recorded. Results A linear increase in the growth rate of all animals was observed. The body weight gain in animals treated at the dose of 8 mg/kg of AESb significantly increased (p < 0.05) after 25 days of treatment while those receiving the doses of 32 and 64 mg/kg presented a significantly low body weight gain starting from the 19th day till the end of the treatment period. The ages (days) of animals at vaginal opening (VO) was significantly reduced (p < 0.05) in those treated with the doses of 32 (41.25 ± 0.51) and 64 mg/kg (41.42 ± 0.54) as compared to control animals (43.33 ± 0.73). AESb significantly increased (p < 0.05) the ovarian weight and the number of corpora lutea in animals treated with 8 mg/kg as well as the uterine weight and protein levels irrespective of the dose. No significant effect of the extract on various fertility and gestational parameters was registered. Conclusion The overall results of the present study provide evidence on the puberty onset induction and ovarian folliculogenesis effect of AESb in immature female rat. PMID:22482701

  20. Simulation analysis of moored fluorometer time series from the Mid-Atlantic Bight during 1987--1990

    SciTech Connect

    Walsh, J.J.

    1990-01-01

    The goal of the previous research during 1987-1990 within the DOE (Department of Energy) Shelf Edge Exchange Processes (SEEP) program in the Mid-Atlantic Bight was to understand the physical and biogeochemical processes effecting the diffusive exchange of the proxies of energy-related, by-products associated with particulate matter between estuarine, shelf, and slope waters on this continental margin. As originally envisioned in the SEEP program plan, SEEP-III would take place at Cape Hatteras to study the advective exchange of materials by a major boundary current. One problem of continuing interest is the determination of the local assimilative capacity of slope waters and sediments off the eastern seaboard of the US to lengthen the pathway between potentially harmful energy by-products and man. At basin scales, realistic specification of the lateral transport by western boundary currents of particulate matter is a necessary input to global models of carbon/nitrogen cycling. Finally, at these global scales, the generic role of continental margins in cycling greenhouse gases, e.g. CO{sub 2}, CH{sub 4}, and N{sub 2}O, is now of equal interest. This continuing research of model construction and evaluation within the SEEP program focuses on all three questions at local, regional, and basin scales. Results from SEEP-I and II are discussed as well as plans for SEEP-III. 14 figs., 3 tabs.

  1. SeaMon-HC Buoy. A specific real-time-lightweight-moored platform as a tool for fast hydrocarbon detection

    NASA Astrophysics Data System (ADS)

    Barrera, C.; Rueda, M. J.; Moran, R.; Llerandi, C.; Llinas, O.

    2009-04-01

    The present paper-work describes the design, last development stages and the derived results from a specific buoy platform for fast hydrocarbon detection in seawater. Under the name of SeaMon-HC, (Patent No. P200302219/8) the buoy represents a very chief tool for coastal monitoring, mainly surrounding areas with a high oil-spill risk level, like harbours, off-shore fish farming, beaches and so on. Nowadays, the Macaronesian area has nine units working in real-time, under the frame of the Red ACOMAR Network. The main innovative aspect from this buoy is the detection system. It's based in polymer technology, working as a resistance, who increase its value when the pollutant on water surface is detected. The response time from the sensor is a direct function of the hydrocarbon volatility level. For hydrocarbons with high volatility levels (like petrol), the sensor needs less time (around 3 minutes) than others with less volatility such as oils. SeaMon-HC is an autonomous, modular, reusable and a very low-cost development integrated by four subsystems (SS): SS-Flotation (different materials and shapes available); SS-Sensors (hydrocarbon detector and additional sensors -up to 15-, to solve specific sensor configuration requirements); SS-Power Supply (equipped in its basic configuration with a couple of solar modules and two 12V batteries) and the SS-Communication (based on a RF or GSM/GPRS modem technology, with a selectable communication frequency). All SeaMon-HC units, as well the rest of the ODAS buoys who joint together the Red ACOMAR Network, works in real-time, sending the collected information to the control centre that manages the communications, providing data, in a useful form (as a web site), to diverse socio-economic important sectors which make an exhaustive use of the littoral in the Macaronesian region. The access to the information by the users is done through a specific GIS software application.

  2. 75 FR 6065 - Extension of Public Comment Period on the Draft Environmental Impact Statement for the Moore...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-05

    ..., 2009, in the Federal Register (74 FR 65806), which announced, in part, that the public comment period... since the initial notice of availability was published on December 11, 2009 (74 FR 65806). In response... Statement for In-Situ Leach Uranium Milling Facilities AGENCY: Nuclear Regulatory Commission (NRC)....

  3. 33 CFR 149.650 - What are the requirements for single point moorings and their attached hoses?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., 2003, by any recognized classification society as defined in 46 CFR 8.100. Helicopter Fueling... designed for the protection of the environment and for durability under combined wind, wave, and...

  4. "What If" Sparks a New Way to Learn: Texas Elementary Designs Its Own Teacher-Led Postgraduate School

    ERIC Educational Resources Information Center

    Toomes, Alyssa

    2015-01-01

    Engaging educators in learning communities to apply a cycle of continuous improvement is not easy. Schedules, levels of expertise, and district initiatives can easily derail a campus professional learning plan, but Alyssa Toomes was concerned that professional learning experiences would become just another chore to check off teachers' to-do lists.…

  5. Bridge Leadership: Connecting Educational Leadership and Social Justice to Improve Schools. Educational Leadership for Social Justice

    ERIC Educational Resources Information Center

    Tooms, Autumn K., Ed.; Boske, Christa, Ed.

    2010-01-01

    This is the first chronicle of the history of social justice as a line of inquiry within the field of educational administration. Editors Tooms and Boske have amassed a collective voice of leaders in the field of Educational Administration who have broken barriers and expanded the field through their own work and scholarship within a national and…

  6. Soil and Plant Mercury Concentrations and Pools in the Arctic Tundra of Northern Alaska by Hedge Christine, Obrist Daniel, Agnan Yannick, Moore Christopher, Biester Harald, Helmig Detlev

    NASA Astrophysics Data System (ADS)

    Hedge, C.; Agnan, Y.

    2015-12-01

    We present vegetation, soil and runoff mercury (Hg) concentrations and pool sizes in vegetation and soils at several arctic tundra sites, an area that represents <7 x 106 km2 of land surface globally. The primary measurement location is at Toolik Field Station (TFS, 68° 38' N) in northern Alaska, with additional samples collected along a transect from TFS to the Arctic Ocean, and in Noatak National Preserve to be collected in August 2015. Soil and vegetation samples from all sites will be analyzed for total Hg concentration, pH, soil texture, bulk density, soil moisture content, organic and total carbon (C), nitrogen, along with major and trace elements. Initial results already obtained from TFS (characterized as moist to wet tundra with Typic Aquiturbel soils) show Hg concentrations in tundra vegetation (112±15 μg kg-1) and organic soil (140±8 μg kg-1) similar to those found in temperate sites. Calculation of plant-based Hg deposition rates by litterfall of 17.3 μg kg-1 yr-1 were surprisingly high, exceeding all other Hg deposition fluxes at this site. Hg concentrations in mineral soils (95±3 μg kg-1) were 2-3 times higher than those found at temperate sites. Hg concentrations showed weak relationships to organic C concentrations contrasting patterns from temperate soils where concentrations typically decline with depth following lower organic carbon contents. In fact, vertical mass profiles of Hg showed a strong increase with depth, with mineral layers storing over 90% (200-500 g ha-1) of Hg within these soils. A principle component analysis including major and trace elements indicated that soil Hg was not of lithogenic origin but from atmospheric sources, possibly by long-range transport. Carbon-14 dating results showed over 7,000 years old organic carbon in mineral soils of the active layer where highest concentrations of soil Hg were observed, suggesting long term retention of atmospheric Hg. These patterns suggest vertical translocation of Hg from the surface organic horizons to mineral soils and strong accumulation—possibly over millennia—therein.

  7. 33 CFR 150.445 - When is oil in a single point mooring-oil transfer system (SPM-OTS) displaced with water?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the pipeline end manifold must be closed whenever: (1) A storm warning forecasts weather conditions... vessel is about to depart the SPM because of storm conditions; or (3) The SPM is not scheduled for use...

  8. Acid-shock, aluminium, and presence of Sphagnum aurantiacum: effect on embryological development in the common frog, Rana temporaria and the moor frog, Rana arvalis

    SciTech Connect

    Olsson, M.; Hogstrand, C.; Dahlberg, A.; Berglind, S.A.

    1987-07-01

    During the last two decades, several effects of acidification have been shown, e.g., enhanced leaching of metals from sediments and soil. Furthermore, an increased growth of Sphagnum aurantiacum frequently occurs in acidified waters. The aim of the present study is to investigate some effects of acidification on the embryological development on two Anurans. The toxicity of aluminium is thought to vary with pH. The highest toxicity of aluminium in the hydroxyl form have been found at pH 5. In the present study a laboratory experiment was performed to investigate the toxicity of Al to frog embryos in water with pH 5.0. In acidified waters Sphagnum and especially S. aurantiacum, is competitive and quickly become established. It has been indicated that frog spawn deposited on Sphagnum show an unusually high mortality and questions have been raised if Sphagnum reinforces the detrimental effects of acidification on Anuran reproduction.

  9. 78 FR 16650 - In the Matter of: Dan Tran Dang, 1010 W. Moore Street, Santa Ana, CA 92707; Order Denying Export...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-18

    ... by successive Presidential Notices, the most recent being that of August 15, 2012 (77 FR 49699... and abetting and willfully exporting Generation 3 Night Vision Goggles, defense articles listed on...

  10. Uriel Cohen, Tim McGinty, Gary T. Moore, CDC Inc. and Center for Architecture and Urban Planning Research, University of Wisconsin-Milwaukee.

    ERIC Educational Resources Information Center

    Progressive Architecture, 1979

    1979-01-01

    A P/A citation for research was given for this report, the initial step in a U.S. Army project to improve child care facilities and play areas at military establishments around the country. The report evaluates 50 child care and play environments. (Author/MLF)

  11. An Assessment of Water Resource Education in the K-16 Curricula: Conclusions and Recommendations. The Proceedings of the Oklahoma Water Education Planning Conference, Moore, Oklahoma, October 21, 1977.

    ERIC Educational Resources Information Center

    Oklahoma State Univ., Stillwater.

    Reported are conclusions and recommendations from the Water Education Planning Conference held in October, 1977 in Oklahoma. The 51 participants, science educators, scientists, representatives from state and federal water agencies, and legislators, were given tasks and questionnaires concerning the national guidelines for water resource education…

  12. Complexity and Performance Results for Non FFT-Based Univariate Polynomial Multiplication

    NASA Astrophysics Data System (ADS)

    Chowdhury, Muhammad F. I.; Maza, Marc Moreno; Pan, Wei; Schost, Eric

    2011-11-01

    Today's parallel hardware architectures and computer memory hierarchies enforce revisiting fundamental algorithms which were often designed with algebraic complexity as the main complexity measure and with sequential running time as the main performance counter. This study is devoted to two algorithms of univariate polynomial multiplication; that are independent of the coefficient ring: the plain and the Toom-Cook univariate multiplications. We analyze their cache complexity and report on their parallel implementations in Cilk++ [1].

  13. Initial impacts and field validation of host range for Boreioglycaspis melaleucae Moore (Hemiptera: Psyllidae),a biological control agent of the invasive tree Melaleuca quinquenervia (Cav.) Blake (Myrtales: Myrtaceae: Leptosp

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Invasion of south Florida wetlands by the Australian paperbark tree (“melaleuca”), Melaleuca quinquenervia (Cav.) S.T. Blake (melaleuca) has caused adverse economic and environmental impacts. The tree’s biological attributes along with favorable ambient biophysical conditions combine to complicate ...

  14. BIOLOGY OF THE LEECH ACTINOBDELLA INEQUIANNULATA MOORE, 1901 (ANNELIDA: HIRUDINEA: RHYNCHOBDELLIDA: GLOSSIPHONIIDAE), PARASITIC ON THE WHITE SUCKER, CATOSTOMUS COMMERSONI LACEPEDE, 1803 AND THE LONGNOSE SUCKER, CATOSTOMUS CATOSTOMUS FORSTER, 1773, IN ALGONQUIN PROVINCIAL PARK, ONTARIO, CANADA

    EPA Science Inventory

    Actinobdella inequiannulata was found on the white sucker, Catostomus commersoni, and less frequently on the longnose sucker, Catostomus catostomus, in Algonquin Provincial Park, Ontario, Canada. Catostomus commersoni parasitized with Act. inequiannulata was collected from July ...

  15. Development of a Large Set of Microsatellite Markers in Zapote Mamey (Pouteria sapota (Jacq.) H.E. Moore & Stearn) and Their Potential Use in the Study of the Species.

    PubMed

    Arias, Renée S; Martínez-Castillo, Jaime; Sobolev, Victor S; Blancarte-Jasso, Nasib H; Simpson, Sheron A; Ballard, Linda L; Duke, Mary V; Liu, Xiaofen F; Irish, Brian M; Scheffler, Brian E

    2015-01-01

    Pouteria sapota is known for its edible fruits that contain unique carotenoids, as well as for its fungitoxic, anti-inflammatory and anti-oxidant activity. However, its genetics is mostly unknown, including aspects about its genetic diversity and domestication process. We did high-throughput sequencing of microsatellite-enriched libraries of P. sapota, generated 5223 contig DNA sequences, 1.8 Mbp, developed 368 microsatellites markers and tested them on 29 individuals from 10 populations (seven wild, three cultivated) from Mexico, its putative domestication center. Gene ontology BLAST analysis of the DNA sequences containing microsatellites showed potential association to physiological functions. Genetic diversity was slightly higher in cultivated than in the wild gene pool (HE = 0.41 and HE = 0.35, respectively), although modified Garza-Williamson Index and Bottleneck software showed evidence for a reduction in genetic diversity for the cultivated one. Neighbor Joining, 3D Principal Coordinates Analysis and assignment tests grouped most individuals according to their geographic origin but no clear separation was observed between wild or cultivated gene pools due to, perhaps, the existence of several admixed populations. The developed microsatellites have a great potential in genetic population and domestication studies of P. sapota but additional sampling will be necessary to better understand how the domestication process has impacted the genetic diversity of this fruit crop. PMID:26111173

  16. Neutron Resonance Parameters of 238U and the Calculated Cross Sections from the Reich-Moore Analysis of Experimental Data in the Neutron Energy Range from 0 keV to 20 keV

    SciTech Connect

    Derrien, H

    2005-12-05

    The neutron resonance parameters of {sup 238}U were obtained from a SAMMY analysis of high-resolution neutron transmission measurements and high-resolution capture cross section measurements performed at the Oak Ridge Electron Linear Accelerator (ORELA) in the years 1970-1990, and from more recent transmission and capture cross section measurements performed at the Geel Linear Accelerator (GELINA). Compared with previous evaluations, the energy range for this resonance analysis was extended from 10 to 20 keV, taking advantage of the high resolution of the most recent ORELA transmission measurements. The experimental database and the method of analysis are described in this report. The neutron transmissions and the capture cross sections calculated with the resonance parameters are compared with the experimental data. A description is given of the statistical properties of the resonance parameters and of the recommended values of the average parameters. The new evaluation results in a slight decrease of the effective capture resonance integral and improves the prediction of integral thermal benchmarks by 70 pcm to 200 pcm.

  17. Development of a large set of microsatellite markers in Zapote Maney (Pouteria sapota (Jacq.) (H.E. Moore & Stearn) and their potential use in the study of the species

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The tropical plant Pouteria sapota (Jacq.) is known for its edible fruits that contain unique carotenoids, and for the chemicals extracted from its bark, leaves and roots having fungitoxic, insecticidal, anti-inflamatory, anti-oxidant and tyrosinase inhibitory activities. Currently, there is no gen...

  18. 77 FR 42485 - Notice Is Given of the Names of Members of the Performance Review Board for the Department of the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-19

    .... Erin Moore, Deputy Director, Senior Executive Management, AF/DPS, 1040 Air Force Pentagon, Washington, DC 20330-1040 (PH: 703-695-7677; or via email at erin.moore@pentagon.af.mil .). Tommy W. Lee,...

  19. Infant of diabetic mother

    MedlinePlus

    ... Philadelphia, PA: Elsevier Saunders; 2012:chap 39. Moore TR, Hauguel-De Mouzon S, Catalano P. Diabetes in pregnancy. ... RK, Resnik R, Iams JD, Lockwood CJ, Moore TR, Greene MF, eds. Creasy and Resnik's Maternal-Fetal ...

  20. 78 FR 43883 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-22

    ... Manna, Trustee; Mario John Manna's IRA Account; Claudia Brown Moore; Claudia Brown Moore's IRA Account... 17, 2013. Michael J. Lewandowski, Associate Secretary of the Board. BILLING CODE 6210-01-P...

  1. 33 CFR 401.42 - Passing hand lines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... downbound vessel shall use its own hand lines, secured to the eye at the end of the mooring lines, by means... behind the splice of the eye; (3) At Iroquois Lock and Lock 8, Welland Canal, both upbound and downbound... to the eye of the No. 1 mooring wire by means of a bowline. (b) Mooring lines shall not be...

  2. On Doing Mathematics: Why We Should Not Encourage "Feeling," "Believing," or "Interpreting" Mathematics

    ERIC Educational Resources Information Center

    McLoughlin, M. Padraig M. M.

    2012-01-01

    P. R. Halmos recalled a conversation with R. L. Moore where Moore quoted a Chinese proverb. That proverb provides a summation of the justification of the methods employed in teaching students to do mathematics with a modified Moore method (MMM). It states, "I see, I forget; I hear, I remember; I do, I understand." In this paper we build…

  3. 36 CFR 328.5 - Guidelines for seaplane use of project waters.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., DEPARTMENT OF THE ARMY REGULATION OF SEAPLANE OPERATIONS AT CIVIL WORKS WATER RESOURCE DEVELOPMENT PROJECTS... securely moored at mooring facilities and at locations permitted by the District Engineer. Seaplanes may be temporarily moored on project waters and lands, except in areas prohibited by the District Engineer,...

  4. 33 CFR 165.819 - Security Zone; Sabine Bank Channel, Sabine Pass Channel and Sabine-Neches Waterway, TX.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Sabine-Neches Waterway, TX. (a) Location. (1) The following LNG facility mooring basins are designated as fixed security zones whenever LNG carriers are moored within them: (i) Golden Pass LNG, Sabine TX: All...°45′50″ N, 093°55′17″ W. (ii) Sabine Pass LNG, Cameron Parish, LA: All mooring basin waters north of...

  5. The Librarian Lion: Constructing Children's Literature through Connections, Capital, and Criticism (1906-1941)

    ERIC Educational Resources Information Center

    Martens, Marianne

    2013-01-01

    While much has been written about the pioneering children's librarian Anne Carroll Moore, little has been written about her role as a "de facto" literary agent. As such, Moore was an innovator not only in children's librarianship, but also in the field of children's publishing. This paper analyzes Moore's letters at the Manuscripts and…

  6. Study of ground handling characteristics of a maritime patrol airship

    NASA Technical Reports Server (NTRS)

    1981-01-01

    Mooring concepts appropriate for maritime patrol airship (MPA) vehicles are investigated. The evolution of ground handling systems and procedures for all airship types is reviewed to ensure that appropriate consideration is given to past experiences. A tri-rotor maritime patrol airship is identified and described. Wind loads on a moored airship and the effects of these loads on vehicle design are analyzed. Several mooring concepts are assessed with respect to the airship design, wind loads, and mooring site considerations. Basing requirements and applicability of expeditionary mooring also are addressed.

  7. Preliminary study of ground handling characteristics of Buoyant Quad Rotor (BQR) vehicles

    NASA Technical Reports Server (NTRS)

    Browning, R. G. E.

    1980-01-01

    A preliminary investigation of mooring concepts appropriate for heavy lift buoyant quad rotor (BQR) vehicles was performed. A review of the evolution of ground handling systems and procedures for all airship types is presented to ensure that appropriate consideration is given to past experiences. Two buoyant quad rotor designs are identified and described. An analysis of wind loads on a moored airship and the effects of these loads on vehicle design is provided. Four mooring concepts are assessed with respect to the airship design, wind loads and mooring site considerations. Basing requirements and applicability of expeditionary mooring at various operational scenarios are addressed.

  8. Critical Probabilities and Convergence Time of Percolation Probabilistic Cellular Automata

    NASA Astrophysics Data System (ADS)

    Taggi, Lorenzo

    2015-05-01

    This paper considers a class of probabilistic cellular automata undergoing a phase transition with an absorbing state. Denoting by the neighbourhood of site , the transition probability is if or otherwise, . For any there exists a non-trivial critical probability that separates a phase with an absorbing state from a fluctuating phase. This paper studies how the neighbourhood affects the value of and provides lower bounds for . Furthermore, by using dynamic renormalization techniques, we prove that the expected convergence time of the processes on a finite space with periodic boundaries grows exponentially (resp. logarithmically) with the system size if (resp. ). This provides a partial answer to an open problem in Toom et al. (Stochastic Cellular Systems: Ergodicity, Memory, Morphogenesis, pp. 1-182. Manchester University Press, Manchester, 1990; Topics in Contemporary Probability and its Applications, pp. 117-157. CRC Press, Boca Raton, 1995).

  9. News and Views: Context and continuity; Not just variable stars; Harnessing talent

    NASA Astrophysics Data System (ADS)

    2009-06-01

    From: Michael Foulkes, Director, Saturn Section, British Astronomical Association From: Bill Leatherbarrow, Director, Lunar Section, British Astronomical Association From: Prof. Michael F Bode, Liverpool John Moores University

  10. Exploration Technology Development & Demonstration

    NASA Video Gallery

    Chris Moore delivers a presentation from the Exploration Technology Development & Demonstration (ETDD) study team on May 25, 2010, at the NASA Exploration Enterprise Workshop held in Galveston, TX....

  11. Lachnoanaerobaculum gen. nov., a new genus in the Lachnospiraceae: characterization of Lachnoanaerobaculum umeaense gen. nov., sp. nov., isolated from the human small intestine, and Lachnoanaerobaculum orale sp. nov., isolated from saliva, and reclassification of Eubacterium saburreum (Prévot 1966) Holdeman and Moore 1970 as Lachnoanaerobaculum saburreum comb. nov.

    PubMed Central

    Moore, Edward R. B.; Svensson-Stadler, Liselott; Hörstedt, Per; Baranov, Vladimir; Hernell, Olle; Wai, Sun Nyunt; Hammarström, Sten; Hammarström, Marie-Louise

    2012-01-01

    Two novel obligately anaerobic, Gram-stain-positive, saccharolytic and non-proteolytic spore-forming bacilli (strains CD3 : 22T and N1T) are described. Strain CD3 : 22T was isolated from a biopsy of the small intestine of a child with coeliac disease, and strain N1T from the saliva of a healthy young man. The cells of both strains were observed to be filamentous, approximately 5 to >20 µm long, some of them curving and with swellings. The novel organisms produced H2S, NH3, butyric acid and acetic acid as major metabolic end products. Phylogenetic analyses, based on comparative 16S rRNA gene sequencing, revealed close relationships (98 % sequence similarity) between the two isolates, as well as the type strain of Eubacterium saburreum and four other Lachnospiraceae bacterium-/E. saburreum-like organisms. This group of bacteria were clearly different from any of the 19 known genera in the family Lachnospiraceae. While Eubacterium species are reported to be non-spore-forming, reanalysis of E. saburreum CCUG 28089T confirmed that the bacterium is indeed able to form spores. Based on 16S rRNA gene sequencing, phenotypic and biochemical properties, strains CD3 : 22T and N1T represent novel species of a new and distinct genus, named Lachnoanaerobaculum gen. nov., in the family Lachnospiraceae [within the order Clostridiales, class Clostridia, phylum Firmicutes]. Strain CD3 : 22T ( = CCUG 58757T  = DSM 23576T) is the type strain of the type species, Lachnoanaerobaculum umeaense gen. nov., sp. nov., of the proposed new genus. Strain N1T ( = CCUG 60305T = DSM 24553T) is the type strain of Lachnoanaerobaculum orale sp. nov. Moreover, Eubacterium saburreum is reclassified as Lachnoanaerobaculum saburreum comb. nov. (type strain CCUG 28089T  = ATCC 33271T  = CIP 105341T  = DSM 3986T  = JCM 11021T  = VPI 11763T). PMID:22228654

  12. 75 FR 38831 - Repair Kalaupapa Dock Structure: Kalaupapa National Historical Park, Hawaii; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ... constructed a mooring dolphin to assist with barge landings. Alternative C would have entailed deferred maintenance and dolphin installation similar to Alternative B, as well as dredged the harbor bottom to widen... basin and installation of a mooring dolphin have been dropped from consideration, which will...

  13. Knives and Other Weapons in London Schools

    ERIC Educational Resources Information Center

    Neill, S. R. St. J.

    2005-01-01

    London schools operate in an area where crime rates, including violent crime, is statistically more frequent than the average for the whole of England and Wales (Moore and Yeo 2004). Violent crime in the capital increased (though not to a statistically significant extent) between 2002/3 and 2003/4 (Moore and Yeo 2004b). This has led to a…

  14. Theory Survey or Survey Theory?

    ERIC Educational Resources Information Center

    Dean, Jodi

    2010-01-01

    Matthew Moore's survey of political theorists in U.S. American colleges and universities is an impressive contribution to political science (Moore 2010). It is the first such survey of political theory as a subfield, the response rate is very high, and the answers to the survey questions provide new information about how political theorists look…

  15. 50 CFR 32.63 - Texas.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... of East Galveston Bay. 5. We prohibit fishing from or mooring to water control structures. Aransas... regulations in part 32). Buffalo Lake National Wildlife Refuge A. Migratory Game Bird Hunting. B. Upland Game... ditches. 4. Conditions A5 and A6 apply. 5. We prohibit fishing from or mooring to water control...

  16. 50 CFR 32.63 - Texas.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... of East Galveston Bay. 5. We prohibit fishing from or mooring to water control structures. Aransas... of this chapter and specific refuge regulations in part 32). Buffalo Lake National Wildlife Refuge A... fishing from or mooring to water control structures. 5. Conditions A5 and A6 apply. San Bernard...

  17. 50 CFR 32.63 - Texas.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... of East Galveston Bay. 5. We prohibit fishing from or mooring to water control structures. Aransas... of this chapter and specific refuge regulations in part 32). Buffalo Lake National Wildlife Refuge A... fishing from or mooring to water control structures. 5. Conditions A5 and A6 apply. San Bernard...

  18. 50 CFR 32.63 - Texas.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... of East Galveston Bay. 5. We prohibit fishing from or mooring to water control structures. Aransas..., snatch hooks, crossbows, or bows and arrows of any type. Buffalo Lake National Wildlife Refuge A... ditches. 4. Conditions A5 and A6 apply. 5. We prohibit fishing from or mooring to water control...

  19. Lessons from a Survivor: 25 Years of Open Education in a Public Alternative School.

    ERIC Educational Resources Information Center

    Dunn, Mary Anna

    Moore's Creek Open Elementary school, located in a quiet African-American neighborhood in a sun-belt city, has operated as a progressive school of choice since 1973, despite the low survival rate of public alternative schools. This study identifies forces that have affected curriculum and instruction at Moore's Creek over the past quarter century.…

  20. Reinventing Douglas: How One Library Revamped Its Space

    ERIC Educational Resources Information Center

    Tarabula, Jill M.

    2013-01-01

    community just outside the city of Plattsburgh in upstate New York. It is part of the State University of New York (SUNY) system. The Leroy M. Douglas Sr. Library (Douglas Library) is located in the George Moore Academic and Administrative Building (Moore Building). Prior to…

  1. 75 FR 63714 - Security Zone: Passenger Vessels, Sector Southeastern New England Captain of the Port Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-18

    ... within a maximum 100-yard radius of any passenger vessel anchored, moored, or in the process of mooring and a moving security zone up to 200 yards for any passenger vessel underway being escorted by Coast... in effect in the navigable waters within a maximum 100-yard radius around passenger vessels that...

  2. 9. OBLIQUE OF DOWNSTREAM SIDE OF BRIDGE, LOOKING EAST FROM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. OBLIQUE OF DOWNSTREAM SIDE OF BRIDGE, LOOKING EAST FROM YOLO COUNTY SIDE OF THE SACRAMENTO RIVER. VESSEL MOORED AT RIGHT IS DELTA KING, WHICH HAS SINCE BEEN REFURBISHED AND MOVED UPSTREAM OF BRIDGE TO PERMANENT MOORING. CAPITOL BANK OF COMMERCE BUILDING IS BEHIND VESSEL. - Sacramento River Bridge, Spanning Sacramento River at California State Highway 275, Sacramento, Sacramento County, CA

  3. Issues and Trends in American Annals of the Deaf Publications 2001 to 2007

    ERIC Educational Resources Information Center

    Moores, Donald; Anderson, Kelly; Ayers, Kyla; Krantz, Katelyn; Laffery, Melanie; Locke, Amy; Smith, Anne-Michael Huntley; Weide, Ryan Vander

    2008-01-01

    In 2001 the "American Annals of the Deaf" published reviews of all literacy-related articles (Moores and Miller, 2001) and all other instruction-related articles (Moores, Jatho, & Creech, 2001) covering 1996 to 2000 inclusively. Twenty articles dealing with literacy were identified. Despite the existence of excellent research on captioning, it…

  4. Vocabulary Acquisition in Young Children: The Role of the Story

    ERIC Educational Resources Information Center

    Hepburn, Emma; Egan, Bridget; Flynn, Naomi

    2010-01-01

    Sharing storybooks with babies increases their future achievements in literacy, especially in reading (Hall, 2001; Moore and Wade, 1997, 2003; Scarborough et al., 1991; Wade and Moore, 1998; Wells, 1985). This study, focusing on case studies of two 20-month-old children, attempts to identify the role the storybook plays in children's vocabulary…

  5. 33 CFR 165.838 - Regulated Navigation Area; New Orleans Area of Responsibility, New Orleans, LA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... enforcement period, including intended mooring arrangements that comply with 33 CFR 165.803 and the mooring... Boulevard Bridge and the intersection of the Harvey Canal and the Algiers Canal of the Intracoastal Waterway; and (3) The Algiers Canal, from the Algiers Lock to the intersection of the Algiers Canal and...

  6. 33 CFR 165.838 - Regulated Navigation Area; New Orleans Area of Responsibility, New Orleans, LA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... enforcement period, including intended mooring arrangements that comply with 33 CFR 165.803 and the mooring... Boulevard Bridge and the intersection of the Harvey Canal and the Algiers Canal of the Intracoastal Waterway; and (3) The Algiers Canal, from the Algiers Lock to the intersection of the Algiers Canal and...

  7. 33 CFR 165.838 - Regulated Navigation Area; New Orleans Area of Responsibility, New Orleans, LA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... enforcement period, including intended mooring arrangements that comply with 33 CFR 165.803 and the mooring... Boulevard Bridge and the intersection of the Harvey Canal and the Algiers Canal of the Intracoastal Waterway; and (3) The Algiers Canal, from the Algiers Lock to the intersection of the Algiers Canal and...

  8. 33 CFR 165.838 - Regulated Navigation Area; New Orleans Area of Responsibility, New Orleans, LA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... enforcement period, including intended mooring arrangements that comply with 33 CFR 165.803 and the mooring... Boulevard Bridge and the intersection of the Harvey Canal and the Algiers Canal of the Intracoastal Waterway; and (3) The Algiers Canal, from the Algiers Lock to the intersection of the Algiers Canal and...

  9. The Use of Deep and Surface Learning Strategies among Students Learning English as a Foreign Language in an Internet Environment

    ERIC Educational Resources Information Center

    Aharony, Noa

    2006-01-01

    Background: The learning context is learning English in an Internet environment. The examination of this learning process was based on the Biggs and Moore's teaching-learning model (Biggs & Moore, 1993). Aim: The research aims to explore the use of the deep and surface strategies in an Internet environment among EFL students who come from…

  10. Journalists Feel Need to Report on Tornadoes.

    ERIC Educational Resources Information Center

    Corder, Paige; Houston, Hillary; Phan, Christine; Ruyle, Jessica

    1999-01-01

    Describes the production of a special edition by Brink Junior High, Moore West Junior High, and Westmoore High School (Moore, Oklahoma) after a tornado destroyed entire neighborhoods only days before. Notes the positive reaction of students and the community, as well as the sense of unity that developed in the community. (RS)

  11. 33 CFR 110.95 - Newport Bay Harbor, Calif.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Beach Harbor Ordinance No. 543 for recreational and small craft of such size and alignment as permitted.... Fore and aft moorings will be allowed in this area conforming to the City of Newport Beach Harbor... moorings will be allowed in this area conforming to the City of Newport Beach Harbor Ordinance No. 543...

  12. 33 CFR 165.1151 - Security Zones; liquefied hazardous gas tank vessels, San Pedro Bay, California.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... that is moored, or in the process of mooring, at any berth within the Los Angeles or Long Beach port... prohibited unless authorized by the Coast Guard Captain of the Port Los Angeles-Long Beach, or his or her... given permission from the Captain of the Port Los Angeles-Long Beach to do otherwise. (d) Authority....

  13. 33 CFR 110.95 - Newport Bay Harbor, Calif.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Beach Harbor Ordinance No. 543 for recreational and small craft of such size and alignment as permitted.... Fore and aft moorings will be allowed in this area conforming to the City of Newport Beach Harbor... moorings will be allowed in this area conforming to the City of Newport Beach Harbor Ordinance No. 543...

  14. 33 CFR 165.1154 - Security Zones; Cruise Ships, San Pedro Bay, California.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Angeles or Port of Long Beach. (b) Location. The following areas are security zones: (1) All waters... ship that is moored, or is in the process of mooring, at any berth within the Los Angeles or Long Beach... prohibited unless authorized by the Coast Guard Captain of the Port, Los Angeles-Long Beach, or...

  15. 33 CFR 165.1154 - Security Zones; Cruise Ships, San Pedro Bay, California.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Angeles or Port of Long Beach. (b) Location. The following areas are security zones: (1) All waters... ship that is moored, or is in the process of mooring, at any berth within the Los Angeles or Long Beach... prohibited unless authorized by the Coast Guard Captain of the Port, Los Angeles-Long Beach, or...

  16. 33 CFR 165.1151 - Security Zones; liquefied hazardous gas tank vessels, San Pedro Bay, California.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... that is moored, or in the process of mooring, at any berth within the Los Angeles or Long Beach port... prohibited unless authorized by the Coast Guard Captain of the Port Los Angeles-Long Beach, or his or her... given permission from the Captain of the Port Los Angeles-Long Beach to do otherwise. (d) Authority....

  17. 33 CFR 165.1151 - Security Zones; liquefied hazardous gas tank vessels, San Pedro Bay, California.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... that is moored, or in the process of mooring, at any berth within the Los Angeles or Long Beach port... prohibited unless authorized by the Coast Guard Captain of the Port Los Angeles-Long Beach, or his or her... given permission from the Captain of the Port Los Angeles-Long Beach to do otherwise. (d) Authority....

  18. 33 CFR 165.1151 - Security Zones; liquefied hazardous gas tank vessels, San Pedro Bay, California.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... that is moored, or in the process of mooring, at any berth within the Los Angeles or Long Beach port... prohibited unless authorized by the Coast Guard Captain of the Port Los Angeles-Long Beach, or his or her... given permission from the Captain of the Port Los Angeles-Long Beach to do otherwise. (d) Authority....

  19. Online Periodic Table: A Cautionary Note

    ERIC Educational Resources Information Center

    Izci, Kemal; Barrow, Lloyd H.; Thornhill, Erica

    2013-01-01

    The purpose of this study was (a) to evaluate ten online periodic table sources for their accuracy and (b) to compare the types of information and links provided to users. Limited studies have been reported on online periodic table (Diener and Moore 2011; Slocum and Moore in "J Chem Educ" 86(10):1167, 2009). Chemistry students'…

  20. 14 CFR 101.7 - Hazardous operations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AND GENERAL OPERATING RULES MOORED BALLOONS, KITES, AMATEUR ROCKETS AND UNMANNED FREE BALLOONS General... unmanned free balloon in a manner that creates a hazard to other persons, or their property. (b) No person operating any moored balloon, kite, amateur rocket, or unmanned free balloon may allow an object to...

  1. 14 CFR 101.7 - Hazardous operations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AND GENERAL OPERATING RULES MOORED BALLOONS, KITES, AMATEUR ROCKETS AND UNMANNED FREE BALLOONS General... unmanned free balloon in a manner that creates a hazard to other persons, or their property. (b) No person operating any moored balloon, kite, amateur rocket, or unmanned free balloon may allow an object to...

  2. 14 CFR 101.7 - Hazardous operations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AND GENERAL OPERATING RULES MOORED BALLOONS, KITES, AMATEUR ROCKETS AND UNMANNED FREE BALLOONS General... unmanned free balloon in a manner that creates a hazard to other persons, or their property. (b) No person operating any moored balloon, kite, amateur rocket, or unmanned free balloon may allow an object to...

  3. 14 CFR 101.7 - Hazardous operations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AND GENERAL OPERATING RULES MOORED BALLOONS, KITES, AMATEUR ROCKETS AND UNMANNED FREE BALLOONS General... unmanned free balloon in a manner that creates a hazard to other persons, or their property. (b) No person operating any moored balloon, kite, amateur rocket, or unmanned free balloon may allow an object to...

  4. 14 CFR 101.7 - Hazardous operations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AND GENERAL OPERATING RULES MOORED BALLOONS, KITES, AMATEUR ROCKETS AND UNMANNED FREE BALLOONS General... unmanned free balloon in a manner that creates a hazard to other persons, or their property. (b) No person operating any moored balloon, kite, amateur rocket, or unmanned free balloon may allow an object to...

  5. Learning in Context

    ERIC Educational Resources Information Center

    Burke, Scott; Moore, Tom

    2009-01-01

    When geometry and career and technical education (CTE) are cotaught in the process of building a house, learning is enhanced, test scores improve, and there's a waiting list of students wanting in. Geometry in Construction is a class instructed by the authors--a CTE teacher (Scott Burke) and a mathematics teacher (Tom Moore). While Moore instructs…

  6. 33 CFR 3.25-20 - Sector North Carolina Marine Inspection Zone and Captain of the Port Zone; Marine Safety Unit...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... intersection of the Sampson County, Harnett County, and Cumberland County lines; thence west along the boundary of Cumberland County and Harnett County to the intersection of the Cumberland County, Harnett County, and Moore County lines; thence south along the boundary of Cumberland County and Moore County to...

  7. 77 FR 19534 - Special Local Regulations; Savannah Tall Ships Challenge, Savannah River, Savannah, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ... Register (77 FR 6039). We received two comments on the proposed rule. No public meeting was requested, and... areas: Mooring zones; buffer zones; and ] a staging area. First, mooring zones will be established.... Second, buffer zones will be established around vessels participating in the Savannah Tall...

  8. Glider Observations as part of an AMOC monitoring array

    NASA Astrophysics Data System (ADS)

    McCarthy, G.; Smeed, D.; Cunningham, S.

    2012-04-01

    Since 2004 the RAPID project has been making direct measurements of the Atlantic Meridional Overturning circulation (AMOC) at 26.5N using a purposefully designed array. The array includes Gulf Stream transports from the Florida Straits cable, Ekman transports from ERA-Interim wind data and internal transports from a transatlantic moored array. The internal transports come from a combination of dynamic height moorings at the eastern boundary, western boundary and the mid-Atlantic ridge. Shallow and deep western boundary currents at the western boundary are measured with a moored array of current meters. The focus of this study is on the eastern boundary element of this array off Africa. Density fluctuations at the eastern boundary dominate the seasonal variability of the AMOC. Mooring operations in the east are problematic due to high losses from trawling. Given the importance of the observations and the vulnerability to losses, the RAPID program has used ocean autonomous gliders as virtual moorings in the area since 2008. Gliders offer data security on two fronts: firstly, via real-time transmission of data and, secondly, due to them being less likely to be trawled. Here, we examine the gliders' effectiveness at reproducing the results of the moorings. Compared to the vertical profiles of density obtained from discrete CTD data on the moorings, we show that gliders can replicate the AMOC transport anomaly caused by density fluctuations at the eastern boundary. Gliders obtain a higher resolution of data in the vertical, capable of producing data at 2-3m intervals as opposed to the moored instruments, which typically have a 100m separation. The glider also produces data in the top 100m, above the shallowest moored instrument. However, the glider has poorer temporal sampling at the depth levels in comparison to moored CTD data. The gliders typically sample a given depth level four times less than the moored instruments. The differences between the glider data and the

  9. Physical oceanographic data from the OTEC Punta Tuna, Puerto Rico Site, September 1979-June 1980

    SciTech Connect

    Frye, D.; Davison, A.; Leavitt, K.

    1981-01-01

    The first results of an oceanographic measurement program being conducted off the southeast corner of Puerto Rico are presented. The study site is a proposed OTEC site and is located about 20 km off Punta Tuna. The objectives of the measurement program are to document the physical oceanography of the site as related to the engineering and environmental factors involved in OTEC design and operation. Oceanographic measurements include: (1) a subsurface mooring instrumented with five current, temperature, and pressure recorders; and (2) quarterly hydrographic cruises to measure salinity, temperature, and depth profiles on a grid of 33 stations in the vicinity of the mooring site. The first cruise, conducted between 16 and 21 June 1980, included the initial mooring deployment and a CTD (conductivity, temperature, and depth) and XBT (expendable bathythermograph) survey. The CTD/XBT measurements are presented. Also included are results of in situ current, temperature, and pressure measurements made during two previous programs. In September 1979, Coastal Marine Research (CMR) deployed a mooring at approximately the same site as the present mooring. Results from three of these instruments are included. The Naval Underwater Systems Center deployed a mooring at this site in February 1979 and partial results from one instrument on this mooring are also presented. (WHK)

  10. Circulation and particle fluxes in the southern California Bight. Final report

    SciTech Connect

    Hickey, Barbara M.

    1993-07-26

    Work funded by the grant consisted of a series of experiments designed to elucidate scales and forcing mechanisms of the circulation and water properties within Santa Monica/San Pedro basin. Each experiment consisted of a moored array of roughly 30 current meters, CTD surveys (usually upon deployment and retrieval of the moored array), and satellite imagery. The CROSS moored array was designed primarily to obtain information on cross-shelf and cross-basin coherence scales, vertical coherence scales and the principal forcing mechanisms for the circulation. Several papers are referenced.

  11. Traditional Quasi-geostrophic modes and Surface Quasi-geostrophic solutions in the Brazil Current region

    NASA Astrophysics Data System (ADS)

    Rocha, C. B.; Tandon, A.; Da Silveira, I. C.

    2012-12-01

    Recent literature has focused theoretically on whether the Quasi-geostrophic (QG) modes and Surface Quasi-geostrophic (SQG) solutions can account for the vertical structure of oceanic flows. In an attempt to resolve this from data, we analyzed the vertical structure of the mesoscale variability in three moorings off Brazil -- two in the Brazil Current domain (MARLIM mooring at 22.45oS, 40.2oW; and WOCE 333 mooring, hereafter W333, at 27.5oS, 46.7oW) and one off-shore (WOCE 335 mooring, hereafter W335, at 28.5oS, 45.3oW). The MARLIM mooring has 9 conventional current meters and spans 300 days. The W333 (W335) has 4 (5) conventional current meters and an upward-looking ADCP and spans 650 days. We evaluated the ability of the QG modes and SQG solutions to account for the vertical structure of the EOFs at these moorings. Only the 1st EOF is statistically significant for three moorings, containing up to 90% of the variance. Although the traditional barotropic (BT) and 1st baroclinic (BC1) modes together contain up to 70% of the variance in the MARLIM and W335 moorings, their combination fails to represent the sharp near surface vertical decay. Higher order modes (2nd and 3rd baroclinic) are needed to account for this near surface variance. A mesoscale broad-banded linear combination of SQG solutions accounts for up to 90% of the variance at these moorings and it represents the near surface decay particularly well. Therefore either the inclusion of higher order QG modes, or, the SQG solutions, is consistent with the data. Indeed, the projection of the SQG solutions onto the traditional QG modes reveals that these two models do not exclude each other. For the W333 moorings the BT/BC1 linear combination accounts for 91% of the variance and does reproduce the near surface decay accurately. In this case, the SQG solutions contains 79% of the 1st EOF variance, although its exponential decay is not present in the data. In order to evaluate how these results can be changed by

  12. Application of MOS-1 MESSR image to the investigation of wetlands in Poyang Lake

    NASA Astrophysics Data System (ADS)

    Chen, Shuisen; Li, Yan

    1998-08-01

    The lake beach and grass moor land is a kind of typical wetlands. The area varies greatly with season in Poyang Lake region. Moreover, the field investigation of wetlands is almost impossible as geographical features and difficulties in transportation. The notes address the potential role of remote sensing in the surveying of the lake beach and grass moor land. In particular, the notes reflect the characteristics relationships between MOS-1 MESSR image and the wetlands. The application results show that MOS-1 MESSR image is effective in surveying the wetland area variation and distribution (lake, river, grass moor, mud flat, sand beach, etc.). detecting lake base shape, and analyzing eco-environment surrounded.

  13. Experimental study on behavior of an open bottom floating platform in wave, wind and current

    SciTech Connect

    Qi Xinyuan

    1994-12-31

    The behavior of a moored open bottom floating platform has been investigated by a series of model tests at the wave basin of CSSRC (69 x 46 x 4m). The model tests were divided into two versions, i.e., version 1 for a conventional semi-submersible and version 2 for an open bottom floating platform. Comparison was made under the same mooring and environmental conditions including waves, steady wind and current. The results of model tests indicate that the open bottom floating platform is more stable and with less mooring loads than the conventional semi-submersible.

  14. Impact of the Indonesian Throughflow on the Atlantic Meridional Overturning Circulation

    NASA Astrophysics Data System (ADS)

    Le Bars, Dewi; Dijkstra, Henk

    2014-05-01

    Understanding the mechanisms controlling the strength and variability of the Atlantic Meridional Overturning Circulation (AMOC) is one of the main topics of climate science and in particular physical oceanography. Current simple representations of the global ocean overturning separates the surface return flow to the Atlantic basin into a cold water path through the Drake Passage and a warm water path through the Indonesian Throughflow and Agulhas leakage. The relative importance of these two paths has been investigated in non-eddying ocean models. In these models the Agulhas retroflection cannot be modelled properly, which leads to an important overestimation of the Agulhas leakage. Furthermore, it seems that the in these models the relation between the meridional density gradient and the overturning strength is greatly simplified and changes significantly when eddies are resolved (Den Toom et al. 2013). As a result, the impact of the Pacific-Indian Oceans exchange through the Indonesian Throughflow on the AMOC is still unknown. To investigate this question we run a state-of-the-art ocean model, the Parallel Ocean Program (POP), globally, at eddy resolving resolution (0.1º). Using climatological forcing from the CORE dataset we perform two simulations of 110 years, a control experiment with realistic coastlines and one in which the Indonesian Passages are closed. Results show that, for a closed Indonesian Throughflow, the Indian Ocean cools down but its salinity increases. The Agulhas leakage reduces also by 3Sv (Le Bars et al. 2013) and the net effect on the south Atlantic is a cooling down and decrease salinity. The anomalies propagate slowly northward and a significant decrease of the AMOC is found at 26ºN after 50 years. This decrease AMOC also leads to reduced northward heat flux in the Atlantic. These processes are investigated with a detailed analysis of the heat and freshwater balances in the Atlantic-Arctic region and in the region south of 34ºS where

  15. 11. Historic American Buildings Survey Commission of Fine Arts Staff, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Historic American Buildings Survey Commission of Fine Arts Staff, ca. 1971 Photocopy of Drawings by Bruce Price & de Sibour, 1908 MARQUISE DRAWINGS: SECTION AND ELEVATION - Clarence Moore House, 1746 Massachusetts Avenue Northwest, Washington, District of Columbia, DC

  16. 33 CFR 334.1150 - Monterey Bay, Calif.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... operations be carried on at night. During the period from February 16 to July 31, inclusive, each year, operations may be carried on which will involve laying exercise mines and other moored or bottom...

  17. US Topo–A new national map series, 2012 update

    USGS Publications Warehouse

    Moore, Laurence R.

    2013-01-01

    The U.S. Geological Survey's Larry Moore provides an update on the US Topo effort, the Survey’s general purpose, digital, quadrangle map series. He outlines the successes thus far and the obstacles still ahead in 2013.

  18. 14. INTERIOR VIEW OF FIRST FLOOR ENTRY HALL, DOOR TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. INTERIOR VIEW OF FIRST FLOOR ENTRY HALL, DOOR TO LIVING ROOM AND DINING ROOM AT RIGHT, VIEW TO SOUTHEAST, ELECTRONIC FLASH ILLUMINATION. - Le Fevre House, 1444 Moore, Campbell, Santa Clara County, CA

  19. Nanotubes May Break Through "Chip Wall"

    NASA Technical Reports Server (NTRS)

    Laufenberg, Larry

    2003-01-01

    In 1965, just four years after the first planar integrated circuit (IC) was discovered, Cordon Moore observed that the number of transistors per integrated circuit had grown exponentially. He predicted that this would continue, and the media soon began to call his prophesy "Moore's Law" For nearly forty years, Moore's Law has been validated by the technological progress achieved in the semiconductor industry. Now, however, industry experts are warning of a "Red Brick Wall" that may soon block the continued scaling predicted by by Moore's Law. The "red bricks" in the wall are those areas of technical challenge for which no known manufacturable solution exists. One such "brick" is the challenge of finding a new material and processing technology to replace the metals used today to interconnect transistors on a chip.

  20. 50 CFR 86.60 - What are the criteria used to select projects for grants?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... INFRASTRUCTURE GRANT (BIG) PROGRAM How the Service Selects Projects To Receive Grants § 86.60 What are the... small feature such as a transient mooring dock within an existing harbor that adds high value...