Science.gov

Sample records for aiche spring meeting

  1. 1981 Spring Meeting Report

    NASA Astrophysics Data System (ADS)

    Approximately 2150 participants registered for the 1981 Spring Meeting. More than 1500 papers were presented.The spaciousness of the Baltimore Convention Center provided ample opportunity for attendees to exchange ideas and interact with their colleagues. Here are some candid shots.

  2. Highlights: Spring Council Meeting

    NASA Astrophysics Data System (ADS)

    Council members present at the May 24, 1981, meeting were Keiiti Aki, Steven Burges (for Jim Wallis), Peter S. Eagleson, E. R. Engdahl, Charles E. Helsley, James R. Heirtzler, Carl Kisslinger, Leslie H. Meredith, Chris N. K. Mooers, Norman F. Ness, Marcia M. Neugebauer, James J. O'Brien, Richard Rapp, Carl Sagan, James C. Savage, Joseph V. Smith, Fred Spilhaus, Donald L. Turcotte, James A. Van Allen, J. Tuzo Wilson, and Jay Winston (for Elmar R. Reiter until his arrival at 6:50 P.M.). David Strangway, representing the Canadian Geophysical Union, and Peter Steinhauser, representing the European Geophysical Society, were special observers at the meeting. Council meetings are open, and a number of section secretaries, committee chairmen, journal editors, and other members attended. The following major actions were adopted by the Council:The experiment of publishing oceanography and lower-atmosphere papers in JGR Green issues alternate to those containing upper-atmosphere papers will be continued through 1982. From preliminary indications the experiment seems to be working, but a full year of data, including a renewal cycle, is needed to assess the success of the experiment. Final decision will be made prior to the 1983 dues notices.

  3. VGP highlights of Spring Meeting

    NASA Astrophysics Data System (ADS)

    Morse, S. A.

    Two special events of interest to Union and VGP section members will take place on Tuesday afternoon, May 25, during AGU's Spring Meeting in Baltimore.R. A. Daly Lecture: Every section of AGU has an established “Bowie Lecture” named after a distinguished scientist associated with the work of the section. These lectures are delivered by special invitation during the annual AGU Spring or Fall meetings and are highlighted in the program. The VGP lecture is named for Reginald A. Daly, but it has never been given. Its inauguration at this year's Spring Meeting celebrates the distinguished career of this famous Harvard professor and author of the seminal Igneous Rocks and the Depths of the Earth (1914, 1933). Most fittingly, the inaugural lecture will be given by David Walker of Columbia University's Lamont-Doherty Earth Observatory after a day-long Union session on discontinuities in the mantle. Dave's lecture, “Errors in Earth Evolution,” will start at 4:45 P.M. We can expect to hear an original and provocative talk that features exciting, new data.

  4. Spring Meeting sail-in

    NASA Astrophysics Data System (ADS)

    Hanshaw, Bruce B.

    In May 1986, Ian MacGregor and I sailed into Baltimore's Inner Harbor to live aboard my boat while we attended the AGU Spring Meeting. During our stay at the Marina, which is only 400-500 m from the Convention Center, we ran into AGU members from several other boats. From these chance encounters an idea was born: Why not have a more coordinated sail-in for the meeting in 1987!! I have offered to act as the commodore/coordinator for this informal event. I'm willing to keep track of the boats that wish dock space and make arrangements with the marina so that boats associated with the sail-in will be together on one “finger” pier.

  5. 2014 RAD Spring Partner Meeting

    EPA Pesticide Factsheets

    The RAD program held an in-person Partner Meeting on April 29, 2014. As in prior years, the meeting was structured as a facilitated roundtable dialogue for partners to share recycling program experiences, opportunities and challenges.

  6. 2015 Materials Research Society Spring Meeting

    DTIC Science & Technology

    2016-05-12

    SECURITY CLASSIFICATION OF: The 2015 Materials Research Society Spring Meeting was held April 6-10 in San Francisco, CA. The scientific sessions...included many emergent areas of materials research as well as some well-established ones. The frequent occurring overlap of topics among the various...clusters is a manifestation of the inter- and cross-disciplinary of contemporary materials science and engineering. Symposium FF brought together

  7. The AIChE "Concept Warehouse": A Web-Based Tool to Promote Concept-Based Instruction

    ERIC Educational Resources Information Center

    Koretsky, Milo D.; Falconer, John L.; Brooks, Bill J.; Gilbuena, Debra M.; Silverstein, David L.; Smith, Christina; Miletic, Marina

    2014-01-01

    This paper describes the "AIChE Concept Warehouse," a recently developed web-based instructional tool that enables faculty within the discipline of chemical engineering to better provide their students concept-based instruction. It currently houses over 2,000 concept questions and 10 concept inventories pertinent to courses throughout…

  8. E-MRS Spring Meeting - Nanophotonic Materials Session

    DTIC Science & Technology

    2004-05-27

    MEETING SYMPOSIUM A2 Thursday, May 27, 2004 Morning Joint Session Symposium A1, A2: Silicon -based nanophotonics Session chairs: P. Fauchet...EUROPEAN MATERIALS RESEARCH SOCIETY Strasbourg (France) E-MRS Spring Meeting 2004 May 24-28, 2004 SYMPOSIUM A2 Nanophotonic ...5a. CONTRACT NUMBER FA8655-04-1-5025 5b. GRANT NUMBER 4. TITLE AND SUBTITLE E-MRS Spring Meeting - Nanophotonic Materials Session 5c

  9. Outstanding student papers at the 1990 Spring Meeting

    NASA Astrophysics Data System (ADS)

    Three students received awards for outstanding presentations at this year's Spring Meeting. Several AGU sections award such certificates to recognize excellence in content and presentation, and to encourage student participation in AGU's national meetings.John Stamatakos was selected by the Geomagnetism and Paleomagnetism Section for his poster presentation, “Strained Remanence in the Mauch Chunk Formation.” Stamatakos received his B.A. from Franklin and Marshall College, Lancaster, Pennsylvania, (1981), and his M.S. (1988) and Ph.D. (September, 1990) from Lehigh University, Bethlehem, Pennsylvania. He currently has a 1-year postdoctoral position at the Swiss Institute of Technology (ETH) in Zurich with William Lowrie and Ann Hirt.

  10. Honor your colleagues at the AGU Spring Meeting

    NASA Astrophysics Data System (ADS)

    AGU will pay tribute to the 1987 Medalists and Fellows on Wednesday, May 20, at the Honors Ceremony, Reception, and Banquet. The William Bowie Medal, the John Adam Fleming Medal, the Charles A. Whitten Medal, and one of the James B. Macelwane medals will be presented at the ceremony, which begins at 5:45 P.M. in the Hyatt Hotel in Baltimore, Md. Also to be honored at the ceremony, which is the most important social function at the Spring Meeting, are those newly elected Fellows (see Eos, April 7, 1987, p. 205) who will be attending. The Walter H. Bucher Medal, the Harry H. Hess Medal, the Maurice Ewing Medal, and two James B. Macelwane medals will be presented at the AGU 1987 Fall Meeting.

  11. COPA to sponsor two Union sessions at AGU Spring Meeting

    NASA Astrophysics Data System (ADS)

    Folger, Peter

    Members of AGU's Committee on Public Affairs (COPA) will convene two Union sessions designed to highlight the link between geophysical research and the broader societal concerns at the upcoming AGU Spring meeting in Boston. Session U05, titled “Contaminated Groundwater and Litigation: Lessons from the Woburn Case,” will focus on the union of geophysical science and the legal system, geophysical science and health effects, and geophysical science and public participation. The Woburn, Massachusetts, toxic tort case, made popular by Jonathan Harr's book A Civil Action, will be used to illustrate the role and interaction of geophysical science with public policy in these areas. COPA members Jim Mercer and Margo Kingston will convene the session Wednesday June 5, starting at 8:30 a.m. in room CC302.

  12. 78 FR 66354 - Warm Springs Irrigation District; Notice of Technical Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-05

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Warm Springs Irrigation District; Notice of Technical Meeting a. Project Name and Number: Warm Springs Dam Hydroelectric Project No. 13570 b. Date and Time of Meeting...

  13. 78 FR 58534 - Warm Springs Irrigation District; Notice of Technical Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Warm Springs Irrigation District; Notice of Technical Meeting a. Project Name and Number: Warm Springs Dam Hydroelectric Project No. 13570 b. Date and Time of Meeting: October...

  14. The ASCI, the spring meetings, and growing up in academic medicine: a personal perspective.

    PubMed

    Fauci, Anthony S

    2008-04-01

    For many young physician-scientists, the American Society for Clinical Investigation spring meetings are the backdrop to their initiation into academic medicine. Membership in the ASCI is a high honor and represents one's maturation and accomplishment in clinical research. The ASCI continues to provide this meeting forum for young investigators who aspire to emulate their idols and mentors just as I did in 1969 when I attended the spring meetings in Atlantic City for the first time.

  15. TODAY: EPA Administrator to Give Keynote Remarks at American Association of Port Authorities Spring Meeting

    EPA Pesticide Factsheets

    WASHINGTON - Today, U.S. Environmental Protection Agency (EPA) Administrator Gina McCarthy will give keynote remarks at the Spring Meeting of the American Association of Port Authorities. Administrator McCarthy will discuss the benefits of pollution

  16. Job Hunters' Workshop held at Spring AGU Meeting

    NASA Astrophysics Data System (ADS)

    Ruder, Michal

    The Education and Human Resources Committee of AGU sponsored a Job Hunters' Workshop as a special afternoon session of this year's Baltimore meeting. Aimed primarily at graduate and postgraduate researchers, the workshop was designed to facilitate the transition from university into the job force. Six panel members provided advice and information on how to pursue research and employment: academia, government labs, consulting firms, and the petroleum industry.The panel included E. K. Graham (Pennsylvania State University, University Park), Richard Orville (State University of New York, Albany), Penny Hanshaw (U.S. Geological Survey (USGS), Reston, Va.), Anne Thompson (National Aeronautics and Space Administration (NASA)/Goddard Space Flight Center), Joseph Bennett (S-Cubed, Reston, Va.,), and Michal Ruder (Exxon Production Research Company, Houston, Tex.,).

  17. View from... JSAP Spring Meeting: A marriage of materials and optics

    NASA Astrophysics Data System (ADS)

    Horiuchi, Noriaki

    2017-04-01

    A laser-annealing technique for increasing the dopant concentration in semiconductors, the creation of a glass with second-order optical nonlinearity and the realization of optical topological insulators were highlights at the Japan Society of Applied Physics Spring Meeting.

  18. Latest Advances in Plant Development and Environmental Response: The Inaugural Cold Spring Harbor Asia Plant Biology Meeting in Japan.

    PubMed

    Ikeuchi, Momoko; Rhodes, Jack

    2017-08-01

    With stunning ocean views over Osaka Bay, Awaji Island played host to the first Cold Spring Harbor Asia Plant Biology meeting in Japan. The meeting, 'Latest Advances in Plant Development and Environmental Response' (CSHAPB), provided a platform to promote scientific communication and collaboration in the pan-pacific region. The event welcomed almost 200 scientists from around the world to showcase their cutting-edge research. Exemplary speakers from diverse research fields presented their latest discoveries, ranging from developmental mechanisms to host-pathogen interactions, environmental responses and stress memory. Here we seek to review the meeting and highlight some of the salient themes that emerged over the course of the 3 d. © The Author 2017. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  19. EMRS Spring Meeting 2014 Symposium D: Phonons and fluctuations in low dimensional structures

    NASA Astrophysics Data System (ADS)

    2014-11-01

    The E-MRS 2014 Spring meeting, held from 26-30th May 2014 in Lille included the Symposium D entitled ''Phonons and Fluctuations in Low Dimensional Structures'', the first edition of its kind. The symposium was organised in response to the increasing interest in the study of phonons in the context of advances in condensed matter physics, electronics, experimental methods and theory and, in particular, the transfer of energy across atomic interfaces and the propagation of energy in the nm-scale. Steering heat by light or vice versa and examining nano-scale energy conversion (as in thermoelectricity and harvesting e.g. in biological systems) are two aspects that share the underlying science of energy processes across atomic interfaces and energy propagation in the nanoscale and or in confined systems. The nanometer scale defies several of the bulk relationships as confinement of electrons and phonons, locality and non-equilibrium become increasingly important. The propagation of phonons as energy carriers impacts not only heat transfer, but also the very concept and handling of temperature in non-equilibrium and highly localised conditions. Much of the needed progress depends on the materials studied and this symposium targeted the interface material aspects as well as the emerging concepts to advance in this field. The symposium had its origins in a series of meetings and seminars including: (1) the first Phonon Engineering Workshop, funded by Catalan Institute for Research and Advanced Studies (ICREA), the then MICINN, the CNRS, VTT, and several EU projects, held in Saint Feliu de Guixols (Girona, Spain) from 24th to 27th of May 2010 with 65 participants from Europe, the USA and Japan; (2) the first Phonons and Fluctuations workshop, held in Paris on 8th and 9th November 2010, supported by French, Spanish and Finnish national projects and EU projects, attended by about 50 researchers; (3) the second Phonon and Fluctuations workshop, held in Paris on 8th and 9th

  20. Mechanisms of eukaryotic transcription: a meeting report August 27–31, 2013, CSHL, Cold Spring Harbor, New York.

    PubMed

    D'Orso, Iván

    2013-01-01

    The "Mechanisms of Eukaryotic Transcription" meeting at Cold Spring Harbor Laboratory, organized by Stephen Buratowski (Harvard Medical School), Katherine Jones (The Salk Institute for Biological Studies) and John Lis (Cornell University), counted with 364 registered attendees, 64 speakers and 215 posters. Top-notch researchers in a very dynamic and collegial atmosphere chaired eight sessions. Here, I discuss selected presentations of each session from an impressive list of speakers. I apologize in advance to speakers whose work I did not discuss due to space constraints.

  1. Proceedings of the 2016 Spring Meeting of the Society of British.

    PubMed

    2016-01-01

    This meeting is being hosted by Royal Victoria Infirmary in Newcastle, 20-22 April 2016 at The Sage, Gateshead. The full abstracts of the platform presentations are followed by the titles of those submissions accepted as posters. The order of abstracts is that of presentation. These papers are 'published in advance of the meeting. If any papers are subsequently withdrawn or not read to the society, an addendum to this effect will be published in the next issue of the journal.

  2. Research in rock deformation: Report of the Second Rock Deformation Colloquium, 1989 AGU Spring Meeting

    NASA Astrophysics Data System (ADS)

    Green, Harry

    In response to the considerable interest expressed at the first Rock Deformation Colloquium held at the Fall 1988 AGU meeting in San Francisco, a second dinner meeting was held on Monday evening, May 8, 1989, at the Omni Hotel in Baltimore. The principal business items were a report by Steve Kirby (U.S. Geological Survey, Menlo Park, Calif.) concerning the meeting the previous day of the rock deformation steering committee and an after dinner presentation by Steve Freiman of the National Institute of Standards and Technology in Gaithersburg, Md., entitled “The Environmental Effects on Subcritical Crack Growth.” Kirby reported that a technical committee for rock deformation has been established within the Tectonophysics Section of AGU; the steering committee will attempt to establish constructive working relations with allied societies and disciplines, such as ceramics, metallurgy, materials science, structural geology, and surface science. Brian Evans of the Massachusetts Institute of Technology in Cambridge, Terry Tullis of Brown University in Providence, R.I., and Harry Green of the University of California at Davis agreed to be a subcommittee to propose a name for the technical committee, for discussion at the next steering committee meeting to be held before the 1989 Fall AGU meeting. Green also agreed to investigate the possibility of convening a special session at the Fall Meeting on the nature and mechanism of deep-focus earthquakes. (The session is Deep Slab Deformation and Faulting, T21B and T22A, organized by Harry and Ken Creager of the University of Washington, Seattle; it will be all day on Tuesday, December 5.)

  3. Academic Libraries: Reaching Up and Stretching Out. Proceedings of the Spring Meeting of the Nebraska Library Association, College and University Section (Crete, Nebraska, May 25, 1990).

    ERIC Educational Resources Information Center

    Giesecke, Joan, Ed.

    This proceedings report provides the papers presented at the 1990 spring meeting. Titles and authors of the seven papers are as follows: (1) "Marketing without a Plan: Seizing Outreach Opportunities as They Occur" (Joan Giesecke, Gail Egbers, Kay Logan-Peters, and Debra Pearson); (2) "Historians and the Academic Library: Traditional…

  4. Proceedings from the 1982 Spring Meeting of the Nebraska Library Association, College and University Section (Seward, Nebraska, April 15-16, 1982).

    ERIC Educational Resources Information Center

    Franco, Elaine A., Ed.

    The papers presented at the 1982 Spring Meeting of the Nebraska Library Association include: (1) "Online Catalog Cooperation among LIRS [Library Information Retrieval System] Libraries" by Roxanne Sellberg; (2) "The New 'MLA Bibliography': One Bibliographer's Perspective" by Elaine A. Franco; (3) "Serial Cancellation…

  5. 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

  6. PREFACE Surface Modifications of Diamond and Related Materials (Session D, E-MRS Spring Meeting)

    NASA Astrophysics Data System (ADS)

    Nebel, Christoph E.

    2010-11-01

    This special issue contains selected papers which were presented at the E-MRS Symposium BIOMATERIALS, SENSORS & SURFACES, D: 'Surface modifications of diamond and related materials' which was held on 7-9 June 2010 in Strasbourg (France). With about 54 oral and poster presentations given from teams all over the world it was a very interesting, dense and lively meeting. The symposium focused on chemical modifications applied to graft surfaces of diamond, nano-diamond particles, diamond-like carbon, graphene, graphite and carbon nano-tubes with linker molecular layers for realization of bio-sensors, bio-markers, separation techniques, and switchable chemical links. Presented techniques span spontaneous bonding to photo-chemical attachment, electrochemical modifications, to Suzuki-coupling of aryl molecules. Special attention was drawn to mechanisms driving bonding kinetics such as electron transfer reactions, hydrogen cleavage reactions by nucleophilic molecules and growths schemas which vary from correlated two-dimensional chain reactions to three-dimensional cross polymerization. Hydrogen terminations, surface defects, surface roughness and atomic arrangements of surface carbon atoms were of interest to elucidate bonding mechanisms. In addition, bonding stability, either of linker molecules or of complex functionalized surfaces with DNA, proteins and enzymes was discussed by several speakers as well as details of the electronic interfaces between solid transducers and bio-layers. Here the characterization of surface and interface defect densities, of Fermi level pinning and of electron transfer rates was a major topic. Miniaturization of sensor area and application of new detection schemas was discussed. Diamond nano-particles which are increasingly used as biomarkers in drug delivery experiments also attracted attention. The organizers express our gratitude to the international members of the scientific committee who actively contributed to ensure an attractive

  7. Upgrading a Social Media Strategy to Increase Twitter Engagement During the Spring Annual Meeting of the American Society of Regional Anesthesia and Pain Medicine.

    PubMed

    Schwenk, Eric S; Jaremko, Kellie M; Gupta, Rajnish K; Udani, Ankeet D; McCartney, Colin J L; Snively, Anne; Mariano, Edward R

    Microblogs known as "tweets" are a rapid, effective method of information dissemination in health care. Although several medical specialties have described their Twitter conference experiences, Twitter-related data in the fields of anesthesiology and pain medicine are sparse. We therefore analyzed the Twitter content of 2 consecutive spring meetings of the American Society of Regional Anesthesia and Pain Medicine using publicly available online transcripts. We also examined the potential contribution of a targeted social media campaign on Twitter engagement during the conferences. The original Twitter meeting content was largely scientific in nature and created by meeting attendees, the majority of whom were nontrainee physicians. Physician trainees, however, represent an important and increasing minority of Twitter contributors. Physicians not in attendance predominantly contributed via retweeting original content, particularly picture-containing tweets, and thus increased reach to nonattendees. A social media campaign prior to meetings may help increase the reach of conference-related Twitter discussion.

  8. News Conference: Take a hold of Hands-on Science Meeting: Prize-winning physics-education talks are a highlight of the DPG spring meeting in Jena Event: Abstracts flow in for ICPE-EPEC 2013 Schools: A new Schools Physics Partnership in Oxfordshire Conference: 18th MPTL is forum for multimedia in education Meeting: Pursuing playful science with Science on Stage Forthcoming events

    NASA Astrophysics Data System (ADS)

    2013-03-01

    Conference: Take a hold of Hands-on Science Meeting: Prize-winning physics-education talks are a highlight of the DPG spring meeting in Jena Event: Abstracts flow in for ICPE-EPEC 2013 Schools: A new Schools Physics Partnership in Oxfordshire Conference: 18th MPTL is forum for multimedia in education Meeting: Pursuing playful science with Science on Stage Forthcoming events

  9. Entry into Nursing Practice. Presentations Made at the Spring 1979 Meeting of the Council on Collegiate Education for Nursing.

    ERIC Educational Resources Information Center

    Southern Regional Education Board, Atlanta, GA.

    This publication includes six papers presented at the 1979 meeting of the Council on Collegiate Education for Nursing. Specific presentations made were (1) Entry into Practice: History, Trends, and Issues, by Virginia Barker; (2) The Appropriate Preparation for Licensure Is the Associate Degree, by Virginia Allen; (3) The Appropriate Preparation…

  10. Mouse genetics meets molecular biology at Cold Spring Harbor. Mouse Molecular Genetics sponsored by the Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA, August 29-September 2, 1990.

    PubMed

    Wagner, E F

    1990-12-01

    As stated earlier, the digestion of roughly 100 short talks delivered within a few days and containing very condensed information is, even for experts, quite demanding. Sometimes one felt in danger of becoming "psyched out" by all the experiments described; perhaps smaller group discussions dealing with experiments that have not worked, as well as the elimination of redundancies in the presentations, would have added to the flavor of the meeting. But what is the "take home message" from the 1990 CSH Mouse Meeting? With all the described breakthroughs, has mouse molecular genetics and development arrived at a turning point? I am inclined to answer this question with a "yes" on the basis of the following considerations: The elegant studies of development in Drosophila and Caenorhabditis elegans were made possible by the power of genetics with the use of developmental mutations. These studies taught us that the sequential activation of a hierarchy of regulatory genes dictates the temporal and spatial patterns of expression of proteins that define cell phenotypes and the body plan, and thereby control development. With the identification of important regulatory genes responsible for many classical as well as experimentally induced mouse mutations, in conjunction with traditional transgenic studies and the power of deleting and altering genes via ES cell chimeras, the study of mouse development has now gained an important new dimension. It is feasible that the consequences of subtle but precise genetic changes, such as the modification of regulatory elements or DNA-binding domains, can be studied in the whole organism by use of ES cells.(ABSTRACT TRUNCATED AT 250 WORDS)

  11. Advanced fossil energy utilization

    SciTech Connect

    Shekhawat, D.; Berry, D.; Spivey, J.; Pennline, H.; Granite, E.

    2010-01-01

    This special issue of Fuel is a selection of papers presented at the symposium ‘Advanced Fossil Energy Utilization’ co-sponsored by the Fuels and Petrochemicals Division and Research and New Technology Committee in the 2009 American Institute of Chemical Engineers (AIChE) Spring National Meeting Tampa, FL, on April 26–30, 2009.

  12. Spring Tire

    NASA Technical Reports Server (NTRS)

    Asnani, Vivake M.; Benzing, Jim; Kish, Jim C.

    2011-01-01

    The spring tire is made from helical springs, requires no air or rubber, and consumes nearly zero energy. The tire design provides greater traction in sandy and/or rocky soil, can operate in microgravity and under harsh conditions (vastly varying temperatures), and is non-pneumatic. Like any tire, the spring tire is approximately a toroidal-shaped object intended to be mounted on a transportation wheel. Its basic function is also similar to a traditional tire, in that the spring tire contours to the surface on which it is driven to facilitate traction, and to reduce the transmission of vibration to the vehicle. The essential difference between other tires and the spring tire is the use of helical springs to support and/or distribute load. They are coiled wires that deform elastically under load with little energy loss.

  13. Spring Regimes

    DTIC Science & Technology

    2003-04-15

    1 through Figure 2- 2. (These illustrations are several days prior to the arrival of the vernal equinox ). Note: Further discussions on jet stream...upper-level westerlies, and become cut off. Cutoff lows appear more often during the transitional periods of spring and autumn because the main belt...events of late autumn and winter. Low clouds and fog may con- tinue to occur in the Columbia Basin/Snake River Valley regions during early spring

  14. Spring performance tester for miniature extension springs

    DOEpatents

    Salzbrenner, Bradley; Boyce, Brad

    2017-05-16

    A spring performance tester and method of testing a spring are disclosed that has improved accuracy and precision over prior art spring testers. The tester can perform static and cyclic testing. The spring tester can provide validation for product acceptance as well as test for cyclic degradation of springs, such as the change in the spring rate and fatigue failure.

  15. Quantum Spring

    NASA Astrophysics Data System (ADS)

    Feng, Chao-Jun; Li, Xin-Zhou

    In this paper, we will give a short review on quantum spring, which is a Casimir effect from the helix boundary condition that proposed in our earlier works. The Casimir force parallel to the axis of the helix behaves very much like the force on a spring that obeys the Hooke's law when the ratio r of the pitch to the circumference of the helix is small, but in this case, the force comes from a quantum effect, so we would like to call it quantum spring. On the other hand, the force perpendicular to the axis decreases monotonously with the increasing of the ratio r. Both forces are attractive and their behaviors are the same in two and three dimensions.

  16. Finding Ways: Excellence under Pressure. Proceedings from the 1986 Spring Meeting of the Nebraska Library Association, College and University Section (Lincoln, Nebraska, May 2, 1986).

    ERIC Educational Resources Information Center

    Teasley, Tamra L., Ed.

    Based on the conference theme, "Finding Ways: Excellence under Pressure," papers presented at the 1986 meeting of the association include: (1) "Coping with Budget Pressure: A Public Services Librarian's View" (Janet C. Lu); (2) "The Librarian, the Accession List, and the Database" (B. C. Wehrman); (3) "New Start:…

  17. The Effective Librarian: Educator, Politician or Practitioner. Proceedings of the Spring Meeting of the Nebraska Library Association (Kearney, Nebraska, May 20, 1988).

    ERIC Educational Resources Information Center

    Rasmussen, Ruth J., Ed.

    This report provides the text of four presentations from a joint meeting of the College and University and Special and Institution sections of the Nebraska State Library Association. In the first, "Cooperation among Multitype Libraries," Sherri Dux-Ideus describes the cooperation between Beatrice Public Library and the Beatrice…

  18. Telecommunications and Research Libraries: 1984 and Beyond. Minutes of the [Semiannual] Meeting (104th, Colorado Springs, Colorado, April 25-27, 1984).

    ERIC Educational Resources Information Center

    Daval, Nicola, Ed.

    Minutes from the 1984 Membership Meeting of the Association of Research Libraries include the full-text of four presented papers: "The Next Generation of Telecommunications Systems" (William F. Utlaut); "Structure of the Present Telecommunications Network" (Donald J. Muccino); "Alternatives to the Bell System" (C.…

  19. Spring Defrosting

    NASA Technical Reports Server (NTRS)

    2005-01-01

    12 May 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows defrosting south high latitude dunes. In late winter and into the spring season, dark spots commonly form on dunes and other surfaces as seasonal carbon dioxide begins to sublime away.

    Location near: 59.3oS, 343.3oW Image width: 2 km (1.2 mi) Illumination from: upper left Season: Southern Spring

  20. A Breath of Spring Air

    ERIC Educational Resources Information Center

    Grady, Marilyn L.

    2009-01-01

    The most promising sights of spring in Nebraska this year were two conferences for women. One event, sponsored by Metropolitan Community College in Omaha, was a Women's History Month Tea. A second conference was the meeting of the Nebraska Women in Higher Education. These two events suggest that there is a continuing interest in women's leadership…

  1. A Breath of Spring Air

    ERIC Educational Resources Information Center

    Grady, Marilyn L.

    2009-01-01

    The most promising sights of spring in Nebraska this year were two conferences for women. One event, sponsored by Metropolitan Community College in Omaha, was a Women's History Month Tea. A second conference was the meeting of the Nebraska Women in Higher Education. These two events suggest that there is a continuing interest in women's leadership…

  2. Fuel Cell Vehicle Learning Demonstration: Spring 2008 Results; Preprint

    SciTech Connect

    Wipke, K.; Sprik, S.; Kurtz, J.; Garbak, J.

    2008-04-01

    Conference paper presented at the 2008 National Hydrogen Association Meeting that describes the spring, 2008 results of the Controlled Hydrogen Fleet and Infrastructure Demonstration and Validation Project.

  3. Spring Dunes

    NASA Technical Reports Server (NTRS)

    2006-01-01

    22 July 2006 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dunes in the north polar region of Mars. In this scene, the dunes, and the plain on which the dunes reside, are at least in part covered by a bright carbon dioxide frost. Dark spots indicate areas where the frost has begun to change, either by subliming away to expose dark sand, changing to a coarser particle size, or both. The winds responsible for the formation of these dunes blew from the lower left (southwest) toward the upper right (northeast).

    Location near: 76.3oN, 261.2oW Image width: 3 km (1.9 mi) Illumination from: lower left Season: Northern Spring

  4. Slightly thermal springs and non-thermal springs at Mount Shasta, California: Chemistry and recharge elevations

    NASA Astrophysics Data System (ADS)

    Nathenson, M.; Thompson, J. M.; White, L. D.

    2003-02-01

    Temperature measurements, isotopic contents, and dissolved constituents are presented for springs at Mount Shasta to understand slightly thermal springs in the Shasta Valley based on the characteristics of non-thermal springs. Non-thermal springs on Mount Shasta are generally cooler than mean annual air temperatures for their elevation. The specific conductance of non-thermal springs increases linearly with discharge temperature. Springs at higher and intermediate elevations on Mount Shasta have fairly limited circulation paths, whereas low-elevation springs have longer paths because of their higher-elevation recharge. Springs in the Shasta Valley are warmer than air temperatures for their elevation and contain significant amounts of chloride and sulfate, constituents often associated with volcanic hydrothermal systems. Data for the Shasta Valley springs generally define mixing trends for dissolved constituents and temperature. The isotopic composition of the Shasta Valley springs indicates that water fell as precipitation at a higher elevation than any of the non-thermal springs. It is possible that the Shasta Valley springs include a component of the outflow from a proposed 210°C hydrothermal system that boils to supply steam for the summit acid-sulfate spring. In order to categorize springs such as those in the Shasta Valley, we introduce the term slightly thermal springs for springs that do not meet the numerical criterion of 10°C above air temperature for thermal springs but have temperatures greater than non-thermal springs in the area and usually also have dissolved constituents normally found in thermal waters.

  5. Slightly thermal springs and non-thermal springs at Mount Shasta, California: Chemistry and recharge elevations

    USGS Publications Warehouse

    Nathenson, M.; Thompson, J.M.; White, L.D.

    2003-01-01

    Temperature measurements, isotopic contents, and dissolved constituents are presented for springs at Mount Shasta to understand slightly thermal springs in the Shasta Valley based on the characteristics of non-thermal springs. Non-thermal springs on Mount Shasta are generally cooler than mean annual air temperatures for their elevation. The specific conductance of non-thermal springs increases linearly with discharge temperature. Springs at higher and intermediate elevations on Mount Shasta have fairly limited circulation paths, whereas low-elevation springs have longer paths because of their higher-elevation recharge. Springs in the Shasta Valley are warmer than air temperatures for their elevation and contain significant amounts of chloride and sulfate, constituents often associated with volcanic hydrothermal systems. Data for the Shasta Valley springs generally define mixing trends for dissolved constituents and temperature. The isotopic composition of the Shasta Valley springs indicates that water fell as precipitation at a higher elevation than any of the non-thermal springs. It is possible that the Shasta Valley springs include a component of the outflow from a proposed 210??C hydrothermal system that boils to supply steam for the summit acid-sulfate spring. In order to categorize springs such as those in the Shasta Valley, we introduce the term slightly thermal springs for springs that do not meet the numerical criterion of 10??C above air temperature for thermal springs but have temperatures greater than non-thermal springs in the area and usually also have dissolved constituents normally found in thermal waters. ?? 2002 Elsevier Science B.V. All rights reserved.

  6. Variable stiffness torsion springs

    NASA Technical Reports Server (NTRS)

    Alhorn, Dean C. (Inventor); Polites, Michael E. (Inventor)

    1995-01-01

    In a torsion spring the spring action is a result of the relationships between the torque applied in twisting the spring, the angle through which the torsion spring twists, and the modulus of elasticity of the spring material in shear. Torsion springs employed industrially have been strips, rods, or bars, generally termed shafts, capabable of being flexed by twisting their axes. They rely on the variations in shearing forces to furnish an internal restoring torque. In the torsion springs herein the restoring torque is external and therefore independent of the shearing modulus of elasticity of the torsion spring shaft. Also provided herein is a variable stiffness torsion spring. This torsion spring can be so adjusted as to have a given spring constant. Such variable stiffness torsion springs are extremely useful in gimballed payloads such as sensors, telescopes, and electronic devices on such platforms as a space shuttle or a space station.

  7. Variable stiffness torsion springs

    NASA Technical Reports Server (NTRS)

    Alhorn, Dean C. (Inventor); Polites, Michael E. (Inventor)

    1994-01-01

    In a torsion spring the spring action is a result of the relationships between the torque applied in twisting the spring, the angle through which the torsion spring twists, and the modulus of elasticity of the spring material in shear. Torsion springs employed industrially have been strips, rods, or bars, generally termed shafts, capabable of being flexed by twisting their axes. They rely on the variations in shearing forces to furnish an internal restoring torque. In the torsion springs herein the restoring torque is external and therefore independent of the shearing modulus of elasticity of the torsion spring shaft. Also provided herein is a variable stiffness torsion spring. This torsion spring can be so adjusted as to have a given spring constant. Such variable stiffness torsion springs are extremely useful in gimballed payloads such as sensors, telescopes, and electronic devices on such platforms as a space shuttle or a space station.

  8. Helical spring holder assembly

    NASA Technical Reports Server (NTRS)

    Newman, Wyatt S. (Inventor)

    1987-01-01

    A helically-threaded spring holder on which a helically wound spring is mounted has a groove formed in one side of the thread at the end where the spring engages the spring holder. The groove relieves the portion of the side in which it is formed from restricting the spring against axial movement during deflection of the spring. The circumferential length of this groove is chosen to establish the number of spring coils which can be deflected without contacting the side of the thread. The end of the thread is also made rigid to prevent flexing thereof during maximal elongation of the spring.

  9. Harrison chairs annual meetings

    NASA Astrophysics Data System (ADS)

    Katzoff, Judith A.

    Fostering the development of interdisciplinary ideas at AGU meetings is the primary goal of AGU's new Meetings Chairman, Christopher G. A. Harrison. “The strength of AGU is the broadness of disciplines represented [within it],” Harrison explained.Harrison is a professor of geophysics at the Rosenstiel School of Marine and Atmospheric Science at the University of Miami. The upcoming 1986 Spring Meeting is the first for which Harrison is serving as chairman, and his term will end after the 1988 Fall Meeting. He succeeds H. Frank Eden, who had been Meetings Chairman since late 1982.

  10. Cooperative Day of Planning VIII: A Report on the Eighth Joint Meeting of the State and National Advisory Councils on Vocational Education (Hot Springs, Arkansas, April 5-6, 1973).

    ERIC Educational Resources Information Center

    National Advisory Council on Vocational Education, Washington, DC.

    A summary of the proceedings of the eighth joint meeting of the State and National Advisory Councils on Vocational Education, held in 1973, is presented. The meeting was attended by State, territorial, and National Council representatives. The agenda and highlights of the meeting are included as well as the two resolutions formulated in the…

  11. Leopold Fellows meet

    NASA Astrophysics Data System (ADS)

    Hartmann, Dennis L.

    Communicating the results of environmental science research to nonscientists was the focus of a week-long meeting of fellows of the Aldo Leopold Leadership Program (ALLP) in June. Participating were 20 mid-career university facultymembers, the first group of ALLP fellows to be selected.Discussions were held on the role of scientists in society, techniques for effective leadership, improving communications skills, and working productively with news media. The training program considers both print and broadcast media as well as other outreach vehicles. The meeting was held at Kah Nee Ta Resort on the Warm Springs Indian Reservation, Warm Springs, Oregon, June 15-21, 1999.

  12. Ombla Spring, Croatia

    NASA Astrophysics Data System (ADS)

    Milanović, P.

    1996-03-01

    Ombla Spring is located on the Adriatic coast near the town of Dubrovnik. The spring discharges at sea level. To eliminate the influence of the tide, a small dam was constructed 50 m downstream of the spring outlet. The spring water overflows the dam crest at an elevation of 2.40 m. Since 1897 the springwater has been used for the water supply for Dubrovnik.

  13. News Quantum physics: German Physical Society spring meeting Journal access: American Physical Society's online journals will be available for free in all US high schools Award: High-school physics teacher receives American award for excellence Teacher training: Fobinet offers coordination of teacher-training activities Astronomy: Astronomy fans see stars at Astrofest Conference: Delegates enjoy the workshops and activities at CPD conference Forthcoming events

    NASA Astrophysics Data System (ADS)

    2011-05-01

    Quantum physics: German Physical Society spring meeting Journal access: American Physical Society's online journals will be available for free in all US high schools Award: High-school physics teacher receives American award for excellence Teacher training: Fobinet offers coordination of teacher-training activities Astronomy: Astronomy fans see stars at Astrofest Conference: Delegates enjoy the workshops and activities at CPD conference Forthcoming events

  14. Water Treatment Technology - Springs.

    ERIC Educational Resources Information Center

    Ross-Harrington, Melinda; Kincaid, G. David

    One of twelve water treatment technology units, this student manual on springs provides instructional materials for two competencies. (The twelve units are designed for a continuing education training course for public water supply operators.) The competencies focus on spring basin construction and spring protection. For each competency, student…

  15. Spring Wheat Breeding

    USDA-ARS?s Scientific Manuscript database

    Common wheat, known as bread wheat, is one of major crops for human food consumption. It is further classified into spring and winter wheat based on the distinct growing seasons. Spring wheat is grown worldwide and usually planted in the spring and harvested in late summer or early fall. In this c...

  16. Water Treatment Technology - Springs.

    ERIC Educational Resources Information Center

    Ross-Harrington, Melinda; Kincaid, G. David

    One of twelve water treatment technology units, this student manual on springs provides instructional materials for two competencies. (The twelve units are designed for a continuing education training course for public water supply operators.) The competencies focus on spring basin construction and spring protection. For each competency, student…

  17. 1. LOOKING NORTH, SHOWING IODINE SPRING (FOREGROUND), SALT SULPHUR SPRING ...

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

    1. LOOKING NORTH, SHOWING IODINE SPRING (FOREGROUND), SALT SULPHUR SPRING (LEFT BACKGROUND), AND TWIN COTTAGES (UPPER RIGHT) (4 x 5 negative; 5 x 7 print) - Salt Sulpher Springs, U.S. Route 219, Salt Sulphur Springs, Monroe County, WV

  18. Aqua/Aura Spring 2017 Inclination Adjust Maneuver Series

    NASA Technical Reports Server (NTRS)

    Noyes, Thomas; Stezelberger, Shane

    2017-01-01

    This will be presented at the International Earth Science Constellation Mission Operations Working Group meeting June 13-15, 2017 to discuss the AquaAura Spring 2017 Inclination Adjust Maneuver series.

  19. Nonthermal springs of Utah

    USGS Publications Warehouse

    Mundorff, J.C.

    1971-01-01

    Data are presented for about 4,500 nonthermal springs that discharge in the State of Utah. Most major springs having discharge of several cubic feet per second or more are in or near mountain ranges or plateaus where precipitation is much greater than in other parts of the State. The largest instantaneous discharge observed at any spring was 314 cfs at Mammoth Spring in southwestern Utah.  Discharges exceeding 200 cfs have been observed at Swan Creek Spring in extreme northern Utah, and discharges of 200 cfs have been reported for Big Brush Creek Spring in northeastern Utah. Maximum discharges generally are during or within a few weeks after the main period of snowmelt, which is usually from late April to the middle of June.The largest springs generally discharge form or very near carbonate rocks in which solution channels and fractures are numerous or from areas of porous or fractured volcanic rocks. Most nonthermal springs in Utah probably are variable springs – that is, their variability of discharge exceeds 100 percent.Most of the major springs discharge water that contains less than 500 ppm (parts per million) of dissolved solids, and most of the water is of the calcium bicarbonate type. Water from springs is used for domestic, municipal, irrigation, livestock, mining, and industrial purposes.

  20. Springs of Florida

    USGS Publications Warehouse

    Rosenau, Jack C.; Faulkner, Glen L.; Hendry, Charles W.; Hull, Robert W.

    1977-01-01

    The first comprehensive report of Florida's springs, which contains both a story of the springs and a collection of facts about them, was published thirty years ago (Ferguson and others, 1947). Since then, much additional data on springs have been gathered and the current report, Springs of Florida, makes a wealth of information on springs available to the public. Springs of Florida, prepared by the U.S. Geological Survey in cooperation with the Bureau of Geology, Florida Department of Natural Resources, publishers, and the Bureau of Water Resources Management, Florida Department of Environmental Regulation, is intended to provide sufficient background information for a lucid understanding of the nature and occurrence of the springs in the State.

  1. Spring joint with overstrain sensor

    NASA Technical Reports Server (NTRS)

    Phelps, Peter M. (Inventor); Gaither, Bryan W. (Inventor)

    2011-01-01

    A flexible joint may include a conductive compression spring and a pair of non-conductive spring cages disposed at opposite ends of the compression spring to support the compression spring. A conductive member disposed inside the compression spring may extend between the pair of spring cages. One end of the conductive member may be fixed for movement with one of the spring cages and another end of the conductive member may be fixed for movement with the other of the spring cages.

  2. Graduate Education: A National Investment in Knowledge. Proceedings of the Annual Meeting of the Council of Graduate Schools in the United States (Colorado Springs, Colorado, December 1-3, 1982).

    ERIC Educational Resources Information Center

    Council of Graduate Schools in the U.S., Washington, DC.

    The national investment in graduate education is addressed in proceedings of the 1982 meeting of the Council of Graduate Schools in the United States (CGS). Proceedings of the CGS business meeting are also included. The keynote address by Howard R. Bowen, "Educational Possibilities for Our Grandchildren," is provided. Transcripts of the…

  3. Coil spring venting arrangement

    DOEpatents

    McCugh, R.M.

    1975-10-21

    A simple venting device for trapped gas pockets in hydraulic systems is inserted through a small access passages, operated remotely, and removed completely. The device comprises a small diameter, closely wound coil spring which is pushed through a guide temporarily inserted in the access passage. The guide has a central passageway which directs the coil spring radially upward into the pocket, so that, with the guide properly positioned for depth and properly oriented, the coil spring can be pushed up into the top of the pocket to vent it. By positioning a seal around the free end of the guide, the spring and guide are removed and the passage is sealed.

  4. A Magnet Spring Model

    ERIC Educational Resources Information Center

    Fay, T. H.; Mead, L.

    2006-01-01

    The paper discusses an elementary spring model representing the motion of a magnet suspended from the ceiling at one end of a vertical spring which is held directly above a second magnet fixed on the floor. There are two cases depending upon the north-south pole orientation of the two magnets. The attraction or repelling force induced by the…

  5. Mineral springs and miracles.

    PubMed

    Forster, M M

    1994-04-01

    Development of hot springs in the Canadian Rockies was closely linked to their reputed medicinal value. In 1885, the federal government created a small reserve around the springs at Sulphur Mountain, an area later enlarged to become Banff National Park, in recognition of the "great sanitary and curative advantage to the public."

  6. A Magnet Spring Model

    ERIC Educational Resources Information Center

    Fay, T. H.; Mead, L.

    2006-01-01

    The paper discusses an elementary spring model representing the motion of a magnet suspended from the ceiling at one end of a vertical spring which is held directly above a second magnet fixed on the floor. There are two cases depending upon the north-south pole orientation of the two magnets. The attraction or repelling force induced by the…

  7. Restoration of White Springs

    Treesearch

    Jonathan W. Long; Delbin Endfield

    2000-01-01

    Rock structures, road closures, fencing and revegetation methods were employed to restore a culturally and ecologically important spring that had been damaged in the aftermath of a wildfire. The project has reestablished the stability of the spring and has moved it closer to its former condition. School groups were an essential part of the restoration project, and...

  8. Abstracts of papers presented at the LVIII Cold Spring Harbor Symposium on quantitative Biology: DNA and chromosomes

    SciTech Connect

    Not Available

    1993-12-31

    This volume contains the abstracts of oral and poster presentations made at the LVIII Cold Spring Harbor Symposium on Quantitative Biology entitles DNA & Chromosomes. The meeting was held June 2--June 9, 1993 at Cold Spring Harbor, New York.

  9. Valve-spring Surge

    NASA Technical Reports Server (NTRS)

    Marti, Willy

    1937-01-01

    Test equipment is described that includes a system of three quartz indicators whereby three different pressures could be synchronized and simultaneously recorded on a single oscillogram. This equipment was used to test the reliction of waves at ends of valve spring, the dynamical stress of the valve spring for a single lift of the valve, and measurement of the curve of the cam tested. Other tests included simultaneous recording of the stress at both ends of the spring, spring oscillation during a single lift as a function of speed, computation of amplitude of oscillation for a single lift by harmonic analysis, effect of cam profile, the setting up of resonance, and forced spring oscillation with damping.

  10. Rotary spring energy storage

    SciTech Connect

    Cooley, S.

    1981-07-01

    The goal was to design a lightweight system, for bicycles, that can level the input energy requirement (human exertion) in accordance with variations in road load (friction, wind, and grade) and/or to provide a system for regenerative braking, that is, to store energy normally lost in brake pad friction for brief periods until it required for re-acceleration or hill-climbing. The rotary spring, also called the coil, motor, spiral, or power spring is governed by the equations reviewed. Materials used in spring manufacture are briefly discussed, and justification for steel as the design choice of material is given. Torque and power requirements for a bicycle and rider are provided as well as estimated human power output levels. These criteria are examined to define spring size and possible orientations on a bicycle. Patents and designs for coupling the spring to the drive train are discussed.

  11. Proceedings of the U.S. Air Force and The Federal Republic of Germany Data Exchange Agreement Meeting (9th), Viscous and Interacting Flow Field Effects Held at Silver Spring, Maryland on 9-10 May 1984,

    DTIC Science & Technology

    1984-08-01

    tieslIey L. Goodma n 4 ’~JNASA Langley Research Center Hampton, Vi rgi ni a 23665 Presented at the 1Q84 IJ.S. Air Force-MWDDEA Data Exchange Meeting...Ames Parabolized Navier-Stokes Code (PANS)," Computational Fluid nlynamics Workshop, March 1q84 , University of Tennessee Space Institute, Tullahoma

  12. Harbingers of Spring

    ERIC Educational Resources Information Center

    Serrao, John

    1976-01-01

    Emphasizing the spring migration of frogs, toads, and salamanders to their watery breeding sites, this article presents information on numerous amphibians and suggests both indoor and outdoor educational activities appropriate for elementary and/or early secondary instruction. (JC)

  13. Harbingers of Spring

    ERIC Educational Resources Information Center

    Serrao, John

    1976-01-01

    Emphasizing the spring migration of frogs, toads, and salamanders to their watery breeding sites, this article presents information on numerous amphibians and suggests both indoor and outdoor educational activities appropriate for elementary and/or early secondary instruction. (JC)

  14. Mineral springs and miracles.

    PubMed Central

    Forster, M. M.

    1994-01-01

    Development of hot springs in the Canadian Rockies was closely linked to their reputed medicinal value. In 1885, the federal government created a small reserve around the springs at Sulphur Mountain, an area later enlarged to become Banff National Park, in recognition of the "great sanitary and curative advantage to the public." Images p730-a p731-a p732-a p733-a p734-a p736-a PMID:8199525

  15. Springs of Great Britain

    NASA Astrophysics Data System (ADS)

    Day, J. B. W.

    1996-03-01

    Predictably, in a country such as Britain, with its preponderance of consolidated, sedimentary, mainly fissure-flow aquifers, there is a very large number of springs, many of which are, or have been, used for public supply. Migratory springs are a feature of the British (Ur. Cretaceous) Chalk, the most important British aquifer. The Chalk's low specific yield and high capillary moisture retention together give rise to very considerable fluctuations (more than 33 m in some areas) of the unconfined water table. Along the gentle dip slopes of the Chalk (North and South Downs of southern and southeastern England) springs may migrate laterally for several miles, giving rise to seasonal streams locally known as “bournes” or “lavants”. However, springs such as at Duncton, West Sussex, at the base of the much steeper scarp slopes of the Chalk, form point sources, the flows from which tend to be relatively steady; such springs commonly supply and are the original reason for the existence of many of the small towns and villages which nestle along the bases of the chalk scarps of Sussex and Kent. Where the Chalk forms coastal cliffs, a number of springs break out at the base of the cliff between high and low tide levels; there are major chalk coastal springs, for instance, at St. Margaret's Bay (Kent) and at Arish Mells, east of Lulworth Cove, Dorset. Such springs are not used for direct supply (their salinity is usually too high) but are indicators of the presence of local reserves of groundwater for possible future development.

  16. Segmented tubular cushion springs and spring assembly

    NASA Technical Reports Server (NTRS)

    Haslim, Leonard A. (Inventor)

    1988-01-01

    A spring (10) includes a tube (12) having an elliptical cross section, with the greater axial dimension (22) extending laterally and the lesser axial dimension (24) extending vertically. A plurality of cuts (20) in the form of slots passing through most of a wall of the tube (12) extend perpendicularly to a longitudinal axis (16) extending along the tube (12). An uncut portion (26) of the tube wall extends along the tube (12) for bonding or fastening the tube to a suitable base, such as a bottom (28) of a seat cushion (30).

  17. Segmented tubular cushion springs and spring assembly

    NASA Technical Reports Server (NTRS)

    Haslim, L. A. (Inventor)

    1985-01-01

    A spring which includes a tube with an elliptical cross section, with the greater axial dimension extending laterally and the lesser axial dimension extending vertically is disclosed. A plurality of cuts in the form of slots passing through most of a wall of the tube extend perpendiculary to a longitudinal axis extending along the tube. An uncut portion of the tube wall extends along the tube for bonding or fastening the tube to a suitable base, such as a bottom of a seat cushion.

  18. EPA Green Chemistry Advances

    EPA Science Inventory

    As an invited speaker, Dr. Leazer will deliver a plenary lecture and participate in a panel discussion at the 2013 AIChE National Meeting in San Francisco, CA. AIChE has embraced sustainability and is looking for guidance and leadership in building their sustainability program. ...

  19. EPA Green Chemistry Advances

    EPA Science Inventory

    As an invited speaker, Dr. Leazer will deliver a plenary lecture and participate in a panel discussion at the 2013 AIChE National Meeting in San Francisco, CA. AIChE has embraced sustainability and is looking for guidance and leadership in building their sustainability program. ...

  20. 77 FR 77090 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-31

    ... Bureau of Land Management Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting... of Land Management's (BLM) Las Cruces District Resource Advisory Council (RAC) will meet as indicated..., 4100 Dripping Springs Road, Las Cruces, NM, 88005 from 9 a.m.-4 p.m. The public may send...

  1. Walking with springs

    NASA Astrophysics Data System (ADS)

    Sugar, Thomas G.; Hollander, Kevin W.; Hitt, Joseph K.

    2011-04-01

    Developing bionic ankles poses great challenges due to the large moment, power, and energy that are required at the ankle. Researchers have added springs in series with a motor to reduce the peak power and energy requirements of a robotic ankle. We developed a "robotic tendon" that reduces the peak power by altering the required motor speed. By changing the required speed, the spring acts as a "load variable transmission." If a simple motor/gearbox solution is used, one walking step would require 38.8J and a peak motor power of 257 W. Using an optimized robotic tendon, the energy required is 21.2 J and the peak motor power is reduced to 96.6 W. We show that adding a passive spring in parallel with the robotic tendon reduces peak loads but the power and energy increase. Adding a passive spring in series with the robotic tendon reduces the energy requirements. We have built a prosthetic ankle SPARKy, Spring Ankle with Regenerative Kinetics, that allows a user to walk forwards, backwards, ascend and descend stairs, walk up and down slopes as well as jog.

  2. Damper Spring For Omega Seal

    NASA Technical Reports Server (NTRS)

    Maclaughlin, Scott T.; Montgomery, Stuart K.

    1993-01-01

    Damper spring reduces deflections of omega-cross-section seal, reducing probability of failure and extending life of seal. Spring is split ring with U-shaped cross section. Placed inside omega seal and inserted with seal into seal cavity. As omega seal compressed into cavity, spring and seal make contact near convolution of seal, and spring becomes compressed also. During operation, when seal dynamically loaded, spring limits deflection of seal, reducing stress on seal.

  3. Spring polar ozone behavior

    NASA Technical Reports Server (NTRS)

    Aikin, Arthur C.

    1992-01-01

    Understanding of the springtime behavior of polar stratospheric ozone as of mid 1990 is summarized. Heterogeneous reactions on polar stratospheric clouds as hypothesis for ozone loss are considered and a simplified description of the behavior of Antarctic ozone in winter and spring is given. Evidence that the situation is more complicated than described by the theory is produced. Many unresolved scientific issues remain and some of the most important problems are identified. Ozone changes each spring since 1979 have clearly established for the first time that man made chlorine compounds influence stratospheric ozone. Long before important advances in satellite and in situ investigations, it was Dobson's decision to place a total ozone measuring spectrometer at Halley Bay in Antarctica during the International Geophysical Year and subsequent continuous monitoring which led to the discovery that ozone was being destroyed each spring by chlorine processed by polar stratospheric clouds.

  4. Mitochondrial genes at Cold Spring Harbor.

    PubMed

    Grivell, L A

    1981-12-01

    The flowering dogwood trees and green lawns of Cold Spring Harbor provided the setting for a meeting devoted to Mitochondrial Genes from May 13-17th, 1981. Dedicated to the memory of Boris Ephrussi, who pioneered mitochondrial genetics at a time when the only kinds of genetics were nuclear or unclear, the meeting showed that the study of mtDNA has had impact on many areas of molecular biology including the genetic code and decoding, tRNA function, mechanisms of splicing and molecular evolution. Curiously, as Herschel Roman pointed out in his opening address, Ephrussi took great pains to avoid any mention of mitochondrial DNA in connection with his observations on cytoplasmic inheritance, preferring instead to refer to 'cytoplasmic particles, endowed with genetic continuity' (Ephrussi 1953). This reticence was not shared by participants at the meeting, as the following, brief report will show.

  5. Major thermal springs of Utah

    USGS Publications Warehouse

    Mundorff, J.C.

    1970-01-01

    As part of a study of the springs of Utah, reconnaissance data were obtained on the thermal, chemical, and geologic characteristics of the major thermal springs or Utah. Only three of the springs have temperatures near the boiling point of water; the maximum recorded temperatures of these springs range from 185° to 189° F. All three springs are in or near areas of late Tertiary or Quaternary volcanism.Temperatures of the thermal springs studied ranged from 68° to 189° F. Nearly all thermal springs in Utah are in or near fault zones. Very few of these springs issue from volcanic rocks, but several springs are close to areas of late Tertiary or Quaternary volcanic rocks.

  6. A Quadratic Spring Equation

    ERIC Educational Resources Information Center

    Fay, Temple H.

    2010-01-01

    Through numerical investigations, we study examples of the forced quadratic spring equation [image omitted]. By performing trial-and-error numerical experiments, we demonstrate the existence of stability boundaries in the phase plane indicating initial conditions yielding bounded solutions, investigate the resonance boundary in the [omega]…

  7. Energy Matters - Spring 2002

    SciTech Connect

    2002-03-01

    Quarterly newsletter from DOE's Industrial Technologies Program to promote the use of energy-efficient industrial systems. The focus of the Spring 2002 Issue of Energy Matters focuses on premium energy efficiency systems, with articles on new gas technologies, steam efficiency, the Augusta Newsprint Showcase, and more.

  8. A Burst of Spring

    NASA Image and Video Library

    2010-03-10

    In the winter a layer of carbon dioxide ice dry ice covers the north polar sand dunes as shown by NASA Mars Reconnaissance Orbiter. In the spring the sublimation of the ice going directly from ice to gas causes a host of uniquely Martian phenomena.

  9. The News. Spring 2006

    ERIC Educational Resources Information Center

    Giles, Ray, Ed.

    2006-01-01

    This Spring issue of the quarterly newsletter of the Community College League of California contains the following articles: (1) Enrollment Drops; Fees to Blame?; (2) Senate's Grad Proposal Triggers Debate on Mission, Access; (3) Compton Decision has Affected Perceptions of Commission (discussion with Barbara Beno); (4) Dynamic New Architectural…

  10. Editors' Spring Picks

    ERIC Educational Resources Information Center

    Library Journal, 2011

    2011-01-01

    While they do not represent the rainbow of reading tastes American public libraries accommodate, Book Review editors are a wildly eclectic bunch. One look at their bedside tables and ereaders would reveal very little crossover. This article highlights an eclectic array of spring offerings ranging from print books to an audiobook to ebook apps. It…

  11. Planar torsion spring

    NASA Technical Reports Server (NTRS)

    Ihrke, Chris A. (Inventor); Parsons, Adam H. (Inventor); Mehling, Joshua S. (Inventor); Griffith, Bryan Kristian (Inventor)

    2012-01-01

    A torsion spring comprises an inner mounting segment. An outer mounting segment is located concentrically around the inner mounting segment. A plurality of splines extends from the inner mounting segment to the outer mounting segment. At least a portion of each spline extends generally annularly around the inner mounting segment.

  12. Echoes of Spring Valley.

    ERIC Educational Resources Information Center

    Boyken, J. Clarine J.

    Designed to preserve the rich heritage of the rural school system which passed from the education scene in the 1930's and 1940's, this narrative, part history and part nostalgia, describes the author's own elementary education and the secure community life centered in the one room Spring Valley School in Hamilton County, Iowa, in the early decades…

  13. Editors' Spring Picks

    ERIC Educational Resources Information Center

    Library Journal, 2011

    2011-01-01

    While they do not represent the rainbow of reading tastes American public libraries accommodate, Book Review editors are a wildly eclectic bunch. One look at their bedside tables and ereaders would reveal very little crossover. This article highlights an eclectic array of spring offerings ranging from print books to an audiobook to ebook apps. It…

  14. Renaissance Administrator, Spring 1998.

    ERIC Educational Resources Information Center

    Dowdy, June P., Ed.

    1998-01-01

    This spring 1998 issue of Renaissance Administrator features the following articles: (1) "Servant Leadership and Higher Education--What is Leadership?" (Richard E. Hasselbach); (2) "Teaching Writing in the 90's--Carnivorous Printers and Dying Grandmothers" (Helen Ruggieri); (3) Assignment--Journal Writing" (Lynn Muscato); and (4) "A Business…

  15. Atascocita Springs Elementary School

    ERIC Educational Resources Information Center

    Nigaglioni, Irene; Yocham, Deborah

    2011-01-01

    With the significant amount of time invested in researching the best techniques for delivering instruction to their students, Humble ISD is always on the forefront of education. Taking the recommendations of their active and vocal community groups, the district embarked in the design of the 26th elementary school, Atascocita Springs Elementary…

  16. Has Spring Sprung?

    ERIC Educational Resources Information Center

    Weiss, Tarin Harrar

    1997-01-01

    Describes a research project that allows students to behave like scientists studying something as simple as the arrival of spring. Gives students practice in stating logical predictions and hypotheses, designing sound research, and collecting reliable data. Exposes them to the successes, failures, and biases inherent in scientific research.…

  17. Echoes of Spring Valley.

    ERIC Educational Resources Information Center

    Boyken, J. Clarine J.

    Designed to preserve the rich heritage of the rural school system which passed from the education scene in the 1930's and 1940's, this narrative, part history and part nostalgia, describes the author's own elementary education and the secure community life centered in the one room Spring Valley School in Hamilton County, Iowa, in the early decades…

  18. Spa, springs and safety.

    PubMed

    Sukthana, Yaowalark; Lekkla, Amorn; Sutthikornchai, Chantira; Wanapongse, Paitoon; Vejjajiva, Athasit; Bovornkitti, Somchai

    2005-01-01

    Natural mineral water has long been used worldwide for bathing and health purposes. At present, Thailand is famous for health spas and natural hot springs among local people and tourists. Due to possible risks of exposure to harmful agents, we studied hazardous pollutants at 57 natural hot springs from 11 provinces in northern, central, eastern and southern Thailand. Pathogenic, free-living amebae of the genera Naegleria and Acanthamoeba, which can cause central nervous system infection, were found in 26.3% (15/57) and 15.8% (9/ 57), respectively. Dissolved radon, a soil gas with carcinogenic properties, was present in nearly all hot springs sites, with concentration ranging from 0.87-76,527 Becquerels/m3. There were 5 water samples in which radon concentration exceeded the safety limit for drinking. Legionella pneumoniphila (serogroups 1, 3, 5, 6, 7 10 and 13) were found in samples from 71.9% (41/57) of studied sites. Because spas and natural springs are popular tourist attractions, health authorities should be aware of possible hazards and provide tactful measures and guidelines to ensure safety without causing undue alarm to foreign and Thai tourists.

  19. 9. CONTEXTUAL VIEW SOUTHSOUTHEAST TOWARDS SPRING SITE. SPRING LEFT CORNER. ...

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

    9. CONTEXTUAL VIEW SOUTH-SOUTHEAST TOWARDS SPRING SITE. SPRING LEFT CORNER. - Juniata Mill Complex, 22.5 miles Southwest of Hawthorne, between Aurora Crater & Aurora Peak, Hawthorne, Mineral County, NV

  20. Council Meeting Highlights

    NASA Astrophysics Data System (ADS)

    Council held a very productive meeting on 17 June using telephone conferencing and a Web-based system for sharing documents. Although the Executive Committee and many other committees have long conducted their business telephonically, this was a first for Council. The early date of the Joint Assembly in Nice, which incorporated AGU's 2003 Spring Meeting, meant that the critical item for Council, approval of the slate of candidates for the next election, would not be ready for action at that time. Thus, the meeting was scheduled for June in conjunction with the Planning Committee. The slate of nominees for the 2004-2006 term was approved as presented by the Union and Section nominating committees. The accompanying story provides the names and the process for petition nominations from the membership.

  1. Studying Springs in Series Using a Single Spring

    ERIC Educational Resources Information Center

    Serna, Juan D.; Joshi, Amitabh

    2011-01-01

    Springs are used for a wide range of applications in physics and engineering. Possibly, one of their most common uses is to study the nature of restoring forces in oscillatory systems. While experiments that verify Hooke's law using springs are abundant in the physics literature, those that explore the combination of several springs together are…

  2. Studying Springs in Series Using a Single Spring

    ERIC Educational Resources Information Center

    Serna, Juan D.; Joshi, Amitabh

    2011-01-01

    Springs are used for a wide range of applications in physics and engineering. Possibly, one of their most common uses is to study the nature of restoring forces in oscillatory systems. While experiments that verify Hooke's law using springs are abundant in the physics literature, those that explore the combination of several springs together are…

  3. Hot Spring Metagenomics

    PubMed Central

    López-López, Olalla; Cerdán, María Esperanza; González-Siso, María Isabel

    2013-01-01

    Hot springs have been investigated since the XIX century, but isolation and examination of their thermophilic microbial inhabitants did not start until the 1950s. Many thermophilic microorganisms and their viruses have since been discovered, although the real complexity of thermal communities was envisaged when research based on PCR amplification of the 16S rRNA genes arose. Thereafter, the possibility of cloning and sequencing the total environmental DNA, defined as metagenome, and the study of the genes rescued in the metagenomic libraries and assemblies made it possible to gain a more comprehensive understanding of microbial communities—their diversity, structure, the interactions existing between their components, and the factors shaping the nature of these communities. In the last decade, hot springs have been a source of thermophilic enzymes of industrial interest, encouraging further study of the poorly understood diversity of microbial life in these habitats. PMID:25369743

  4. The joys of spring.

    PubMed

    Riby, Leigh M

    2013-01-01

    This study used Vivaldi's Four Seasons, an extraordinary example of program music, to explore the consequence of music exposure on cognitive event-related potentials (ERPs). Seventeen participants performed a three-stimulus visual odd-ball task while ERPs were recorded. Participants were required to differentiate between a rare target stimulus (to elicit a memory updating component; P3b), a rare novel stimulus (to elicit a novelty attention component; P3a), and a frequent nontarget stimulus. During task performance participants listened to the four concertos: Spring, Summer, Autumn, and Winter in comparison to a silent control condition. Additionally, the three movements of each concerto have a fast, slow, fast structure that enabled examination of the impact of tempo. The data revealed that "Spring," particularly the well-recognized, vibrant, emotive, and uplifting first movement, had the ability to enhance mental alertness and brain measures of attention and memory.

  5. Spring operated accelerator and constant force spring mechanism therefor

    NASA Technical Reports Server (NTRS)

    Shillinger, G. L., Jr. (Inventor)

    1977-01-01

    A spring assembly consisting of an elongate piece of flat spring material formed into a spiral configuration and a free running spool in circumscribing relation to which this spring is disposed was developed. The spring has a distal end that is externally accessible so that when the distal end is drawn along a path, the spring unwinds against a restoring force present in the portion of the spring that resides in a transition region between a relatively straight condition on the path and a fully wound condition on the spool. When the distal end is released, the distal end is accelerated toward the spool by the force existing at the transition region which force is proportional to the cross-sectional area of the spring.

  6. 2007 AIChE Alpha Chi Sigma Award: From Material to Tissue: Biomaterial Development, Scaffold Fabrication, and Tissue Engineering

    PubMed Central

    Kretlow, James D.; Mikos, Antonios G.

    2009-01-01

    The need for techniques to facilitate the regeneration of failing or destroyed tissues remains great with the aging of the worldwide population and the continued incidence of trauma and diseases such as cancer. A 16-year history in biomaterial scaffold development and tissue engineering is examined, beginning with the synthesis of novel materials and fabrication of 3D porous scaffolds. Exploring cell-scaffold interactions and subsequently cellular delivery using biomaterial carriers, we have developed a variety of techniques for bone and cartilage engineering. In addition to delivering cells, we have utilized growth factors, DNA, and peptides to improve the in vitro and in vivo regeneration of tissues. This review covers important developments and discoveries within our laboratory, and the increasing breadth in the scope of our work within the expanding field of tissue engineering is presented. PMID:19756176

  7. Fun with Automobile Springs

    NASA Astrophysics Data System (ADS)

    Fritsch, Klaus

    2006-10-01

    Simple measurements on car suspension systems and their analysis can raise student interest in the elementary discussion of the behavior of springs in oscillating systems. To understand these complicated oscillating systems and to interpret measurements properly, models may be used. Students find out how to make approximations and extract useful information from marginal data using common sense, basic physics, and simple software tools. Basic experiments on a physical model of a car suspension and on a passenger car, as well as the analysis of the data, will be presented. In particular, a value of the bounce mode frequency of a car was obtained using several approaches.

  8. Modeling the effects of pumping wells in spring management: The case of Scirca spring (central Apennines, Italy)

    NASA Astrophysics Data System (ADS)

    Dragoni, W.; Mottola, A.; Cambi, C.

    2013-06-01

    wells far from the spring, the efficiency of the whole system can be optimized in terms of total withdrawal, drilling and management costs, with reduced environmental impact. The mathematical model also shows how long the system takes to regain its "undisturbed" state, with a tolerance of 0.5 l/s. The model highlights the possibility of forcing the system to supply a smaller amount of water in winter, in order to increase the summer yield. Such a management scheme, which can be applied to other springs, may be useful in better meeting the demand for water during dry seasons.

  9. 75 FR 17897 - National Tree-Marking Paint Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-08

    ... Forest Service National Tree-Marking Paint Committee Meeting AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The National Tree-marking Paint Committee will meet in Colorado Springs..., concerns about, and the handling and use of tree-marking paint by personnel of the Forest Service and...

  10. Leading Meetings.

    ERIC Educational Resources Information Center

    Lindelow, John; Heynderickx, James

    Chapter 13 of a revised volume on school leadership, this chapter offers suggestions to help educators improve their performance in meetings, both as group leaders and as participants. Well-run meetings can rejuvenate an organization, leading to improved teamwork, communication, and morale. A poor meeting, on the other hand, can have a…

  11. Managing Meetings

    ERIC Educational Resources Information Center

    Hay, Susan

    2010-01-01

    Meetings are a means of giving people a chance to contribute. Meetings are also the nursery where the people's skills of listening, speaking, and building good working relationships are honed. They are where people practice being courteously challenging and confident, and they are where people are fascinated and fascinating. Meetings are where…

  12. Developing bulk exchange spring magnets

    DOEpatents

    Mccall, Scott K.; Kuntz, Joshua D.

    2017-06-27

    A method of making a bulk exchange spring magnet by providing a magnetically soft material, providing a hard magnetic material, and producing a composite of said magnetically soft material and said hard magnetic material to make the bulk exchange spring magnet. The step of producing a composite of magnetically soft material and hard magnetic material is accomplished by electrophoretic deposition of the magnetically soft material and the hard magnetic material to make the bulk exchange spring magnet.

  13. Spring viremia of carp

    USGS Publications Warehouse

    Ahne, W.; Bjorklund, H.V.; Essbauer, S.; Fijan, N.; Kurath, G.; Winton, J.R.

    2002-01-01

    pring viremia of carp (SVC) is an important disease affecting cyprinids, mainly common carp Cyprinus carpio. The disease is widespread in European carp culture, where it causes significant morbidity and mortality. Designated a notifiable disease by the Office International des Epizooties, SVC is caused by a rhabdovirus, spring viremia of carp virus (SVCV). Affected fish show destruction of tissues in the kidney, spleen and liver, leading to hemorrhage, loss of water-salt balance and impairment of immune response. High mortality occurs at water temperatures of 10 to 17°C, typically in spring. At higher temperatures, infected carp develop humoral antibodies that can neutralize the spread of virus and such carp are protected against re-infection by solid immunity. The virus is shed mostly with the feces and urine of clinically infected fish and by carriers. Waterborne transmission is believed to be the primary route of infection, but bloodsucking parasites like leeches and the carp louse may serve as mechanical vectors of SVCV. The genome of SVCV is composed of a single molecule of linear, negative-sense, single-stranded RNA containing 5 genes in the order 3¹-NPMGL-5¹ coding for the viral nucleoprotein, phosphoprotein, matrix protein, glycoprotein, and polymerase, respectively. Polyacrylamide gel electrophoresis of the viral proteins, and sequence homologies between the genes and gene junctions of SVCV and vesicular stomatitis viruses, have led to the placement of the virus as a tentative member of the genus Vesiculovirus in the family Rhabdoviridae. These methods also revealed that SVCV is not related to fish rhabdoviruses of the genus Novirhabdovirus. In vitro replication of SVCV takes place in the cytoplasm of cultured cells of fish, bird and mammalian origin at temperatures of 4 to 31°C, with an optimum of about 20°C. Spring viremia of carp can be diagnosed by clinical signs, isolation of virus in cell culture and molecular methods. Antibodies directed

  14. Spring loaded thermocouple module

    DOEpatents

    McKelvey, T.E.; Guarnieri, J.J.

    1984-03-13

    A thermocouple arrangement is provided for mounting in a blind hole of a specimen. The thermocouple arrangement includes a cup-like holder member, which receives an elongated thermal insulator, one end of which is seated at an end wall of the holder. A pair of thermocouple wires, threaded through passageways in the insulator, extend beyond the insulator member, terminating in free ends which are joined together in a spherical weld bead. A spring, held captive within the holder, applies a bias force to the weld bead, through the insulator member. The outside surface of the holder is threaded for engagement with the blind hole of the specimen. When the thermocouple is installed in the specimen, the spherical contact surface of the weld bead is held in contact with the end wall of the blind hole, with a predetermined bias force.

  15. Spring loaded thermocouple module

    DOEpatents

    McKelvey, Thomas E.; Guarnieri, Joseph J.

    1985-01-01

    A thermocouple arrangement is provided for mounting in a blind hole of a specimen. The thermocouple arrangement includes a cup-like holder member, which receives an elongated thermal insulator, one end of which is seated at an end wall of the holder. A pair of thermocouple wires, threaded through passageways in the insulator, extend beyond the insulator member, terminating in free ends which are joined together in a spherical weld bead. A spring, held captive within the holder, applies a bias force to the weld bead, through the insulator member. The outside surface of the holder is threaded for engagement with the blind hole of the specimen. When the thermocouple is installed in the specimen, the spherical contact surface of the weld bead is held in contact with the end wall of the blind hole, with a predetermined bias force.

  16. Springing into Spring: Reading Games for the Season

    ERIC Educational Resources Information Center

    Maxwell, D. Jackson

    2008-01-01

    As spring arrives, more time is spent outdoors. Unfortunately, as spring fever hits, books and learning often take a backseat. The goal is for educators to find a way to re-engage learners. In this article, the author presents a seasonal story and game that can help catch students' attention by making learning both informative and entertaining.…

  17. Photovoltaics: The endless spring

    NASA Technical Reports Server (NTRS)

    Brandhorst, H. W., Jr.

    1984-01-01

    An overview of the developments in the photovoltaic field over the past decade or two is presented. Accomplishments in the terrestrial field are reviewed along with projections and challenges toward meeting cost goals. The contrasts and commonality of space and terrestrial photovoltaics are presented. Finally, a strategic philosophy of photovoltaics research highlighting critical factors, appropriate directions, emerging opportunities, and challenges of the future is given.

  18. Brackish karstic springs model: application to Almiros spring in Crete.

    PubMed

    Maramathas, Athanasios; Maroulis, Zacharias; Marinos-Kouris, Dimitrios

    2003-01-01

    A mathematical model is proposed to simulate brackish karstic springs. Rainfall data constitutes model input information while output information is the discharge and the chloride concentration of the water versus time. The model was constructed by considering the mass and mechanical energy balance on the hydrodynamic analog, which includes three reservoirs outflowing in a tube that lies adjacent to the spring. Two reservoirs emulate the karstic system, and the third one emulates the sea. The discharge of the spring is given by the sum of the discharge of the reservoirs, and the chloride concentration by the solution of the mixing problem between the fresh and the salty water, which exists in the tube leading to the spring. The model is applied to the spring of Almiros at Heraklion, Crete, Greece. The agreement between model values and field measurements is very good for depletion periods and satisfactory for recharge periods.

  19. Large springs of east Tennessee

    USGS Publications Warehouse

    Sun, Pao-chang P.; Criner, J.H.; Poole, J.L.

    1963-01-01

    Springs constitute an important source of water in east Tennessee, and many individual springs are capable of supplying the large quantities needed for municipal and industrial supplies. Most of the springs in east Tennessee issue from solution openings and fractured and faulted zones in limestone and dolomite of the Knox Group, Chickamauga Limestone, and Conasauga Group. The ability of these rocks to yield a sustained flow of water to springs is dependent on a system of interconnected openings through which water can infiltrate from the land surface and move to points of natural discharge. Ninety springs were selected for detailed study, and 84 of these are analyzed in terms of magnitude and variability of discharge. Of the 84 springs analyzed, 4 flow at an average rate of 10 to 100 cfs (cubic feet per second), 62 at an average rate of 1 to 10 cfs, and 18 at an average rate of 1 cfs or less. Of the 90 springs, 75 are variable in their discharge; that is, the ratio of their fluctuations to their average discharges exceeds 100 percent. Mathematical analysis of the flow recession curve of Mill Spring near Jefferson City shows that the hydrologic system contributing to the flow of the spring has an effective capacity of about 70 million cubic feet of water. The rate of depletion of this volume of water, in the absence of significant precipitation, averages 0.0056 cfs per day between the time when the hydrologic system is full and the time when the spring ceases to flow. From such a curve it is possible to determine at any time the residual volume of water remaining in the system and the expected rate of decrease in discharge from that time to cessation of flow. Correlation of discharge measurements of 22 springs with those of Mill Spring shows that rough approximations of discharge can be projected for springs for which few measurements are available. Seventeen of the springs analyzed in this manner show good correlation with Mill Spring: that is, their coefficients

  20. Experimenting with Inexpensive Plastic Springs

    ERIC Educational Resources Information Center

    Perez, Leander; Marques, Adriana; Sánchez, Iván

    2014-01-01

    Acommon undergraduate laboratory experience is the determination of the elastic constant of a spring, whether studying the elongation under a static load or studying the damped harmonic motion of the spring with a suspended mass. An alternative approach to this laboratory experience has been suggested by Menezes et al., aimed at studying the…

  1. Spring loaded locator pin assembly

    DOEpatents

    Groll, Todd A.; White, James P.

    1998-01-01

    This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece.

  2. Experimenting with Inexpensive Plastic Springs

    ERIC Educational Resources Information Center

    Perez, Leander; Marques, Adriana; Sánchez, Iván

    2014-01-01

    Acommon undergraduate laboratory experience is the determination of the elastic constant of a spring, whether studying the elongation under a static load or studying the damped harmonic motion of the spring with a suspended mass. An alternative approach to this laboratory experience has been suggested by Menezes et al., aimed at studying the…

  3. Spring loaded locator pin assembly

    DOEpatents

    Groll, T.A.; White, J.P.

    1998-03-03

    This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece. 5 figs.

  4. Mallow Springs, County Cork, Ireland

    NASA Astrophysics Data System (ADS)

    Aldwell, C. R.

    1996-03-01

    Because of its copious and reliable rainfall, Ireland has an abundance of springs. Many of the larger ones issue from the Carboniferous limestone that occurs in over 40% of the country. The spring water is mainly a calcium bicarbonate type with a temperature of about 10°C. In the 18th century, warm and cold springs were developed as spas in various parts of Ireland. The popularity of these springs was short and most were in major decline by 1850. Today only one cold spa at Lisdoonvarna, Co. Clare is still operating. Springs in Ireland were places of religious significance for the pre-Christian Druidic religion. In the Christian period they became holy wells, under the patronage of various saints. Cures for many different ailments were attributed to water from these wells.

  5. 76 FR 41196 - National Forests in Mississippi, Tombigbee and Holly Springs Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Forest Service National Forests in Mississippi, Tombigbee and Holly Springs Resource Advisory Committee... National Forests Resource Advisory Committee will meet in Starkville, MS. The committee is meeting as... Forest Resources, Tulley Auditorium, Thompson Hall, 775 Stone Blvd., Mississippi State, MS 39762-9690...

  6. 76 FR 41195 - National Forests In Mississippi, Tombigbee and Holly Springs Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Forest Service National Forests In Mississippi, Tombigbee and Holly Springs Resource Advisory Committee... National Forests Resource Advisory Committee will meet in Starkville, MS. The committee is meeting as... Forest Resources, Tulley Auditorium, Thompson Hall, 775 Stone Blvd., Mississippi State, MS, 39762-9690...

  7. Linear magnetic spring and spring/motor combination

    NASA Technical Reports Server (NTRS)

    Patt, Paul J. (Inventor); Stolfi, Fred R. (Inventor)

    1991-01-01

    A magnetic spring, or a spring and motor combination, providing a linear spring force characteristic in each direction from a neutral position, in which the spring action may occur for any desired coordinate of a typical orthogonal coordinate system. A set of magnets are disposed, preferably symmetrically about a coordinate axis, poled orthogonally to the desired force direction. A second set of magnets, respectively poled opposite the first set, are arranged on the sprung article. The magnets of one of the sets are spaced a greater distance apart than those of the other, such that an end magnet from each set forms a pair having preferably planar faces parallel to the direction of spring force, the faces being offset so that in a neutral position the outer edge of the closer spaced magnet set is aligned with the inner edge of the greater spaced magnet set. For use as a motor, a coil can be arranged with conductors orthogonal to both the magnet pole directions and the direction of desired spring force, located across from the magnets of one set and fixed with respect to the magnets of the other set. In a cylindrical coordinate system having axial spring force, the magnets are radially poled and motor coils are concentric with the cylinder axis.

  8. Piston and spring powered engine

    SciTech Connect

    Samodovitz, A. J.

    1985-12-10

    The invention is an improved piston engine, either two stroke or four stroke. In one, two stroke, one cylinder embodiment, the improvement comprises two springs connecting between the piston and the base of the piston. These springs are relatively relaxed when the crank is at top dead center. Then during the power/intake stroke, some of the fuel's energy is delivered to the crankshaft and some is used to compress the springs. The stored energy in the springs is delivered to the crankshaft during the exhaust/compression stroke while the springs return to their relatively relaxed condition. As a result, energy is delivered to the crankshaft during both strokes of the cycle, and the engine runs smooth. In one, four stroke, two cylinder embodiment, each cylinder has springs as described above, the cranks of each cylinder are aligned, and the cam sets one cylinder in the power stroke while the other is in the intake stroke. As a result, the engine runs smooth because energy is delivered to the crankshaft during all four strokes of the cycle, during two of the strokes by the burning fuel and during the other two by the release of energy in the springs. In both embodiments, a heavy crankshaft is not needed because of the more uniform power delivery.

  9. BIOPAX REPORT SPRING 2007

    SciTech Connect

    Sander, Chris

    2007-06-01

    In July 2004, the Department of Energy (DOE) allocated funds in support of the development of A Data Exchange Format for Biological Pathway Databases (BioPAX). The primary objective of the BioPAX initiative is the development of a standard data exchange format for biological pathway data. This standard will significantly ease the analysis of biological pathways in the life sciences. Support from the DOE has enabled BioPAX to make significant progress towards its objective. We were able to build a very active community of pathway data and software tool providers. Work is continuing on the BioPAX standard with meetings, input and feedback provided for Level 3 of the standard and beyond.

  10. Groundwater flow cycling between a submarine spring and an inland fresh water spring.

    PubMed

    Davis, J Hal; Verdi, Richard

    2014-01-01

    Spring Creek Springs and Wakulla Springs are large first magnitude springs that derive water from the Upper Floridan Aquifer. The submarine Spring Creek Springs are located in a marine estuary and Wakulla Springs are located 18 km inland. Wakulla Springs has had a consistent increase in flow from the 1930s to the present. This increase is probably due to the rising sea level, which puts additional pressure head on the submarine Spring Creek Springs, reducing its fresh water flow and increasing flows in Wakulla Springs. To improve understanding of the complex relations between these springs, flow and salinity data were collected from June 25, 2007 to June 30, 2010. The flow in Spring Creek Springs was most sensitive to rainfall and salt water intrusion, and the flow in Wakulla Springs was most sensitive to rainfall and the flow in Spring Creek Springs. Flows from the springs were found to be connected, and composed of three repeating phases in a karst spring flow cycle: Phase 1 occurred during low rainfall periods and was characterized by salt water backflow into the Spring Creek Springs caves. The higher density salt water blocked fresh water flow and resulted in a higher equivalent fresh water head in Spring Creek Springs than in Wakulla Springs. The blocked fresh water was diverted to Wakulla Springs, approximately doubling its flow. Phase 2 occurred when heavy rainfall resulted in temporarily high creek flows to nearby sinkholes that purged the salt water from the Spring Creek Springs caves. Phase 3 occurred after streams returned to base flow. The Spring Creek Springs caves retained a lower equivalent fresh water head than Wakulla Springs, causing them to flow large amounts of fresh water while Wakulla Springs flow was reduced by about half. Published 2013. This article is a U.S. Government work and is in the public domain in the USA.

  11. Groundwater flow cycling between a submarine spring and an inland fresh water spring

    USGS Publications Warehouse

    Davis, J. Hal; Verdi, Richard

    2014-01-01

    Spring Creek Springs and Wakulla Springs are large first magnitude springs that derive water from the Upper Floridan Aquifer. The submarine Spring Creek Springs are located in a marine estuary and Wakulla Springs are located 18 km inland. Wakulla Springs has had a consistent increase in flow from the 1930s to the present. This increase is probably due to the rising sea level, which puts additional pressure head on the submarine Spring Creek Springs, reducing its fresh water flow and increasing flows in Wakulla Springs. To improve understanding of the complex relations between these springs, flow and salinity data were collected from June 25, 2007 to June 30, 2010. The flow in Spring Creek Springs was most sensitive to rainfall and salt water intrusion, and the flow in Wakulla Springs was most sensitive to rainfall and the flow in Spring Creek Springs. Flows from the springs were found to be connected, and composed of three repeating phases in a karst spring flow cycle: Phase 1 occurred during low rainfall periods and was characterized by salt water backflow into the Spring Creek Springs caves. The higher density salt water blocked fresh water flow and resulted in a higher equivalent fresh water head in Spring Creek Springs than in Wakulla Springs. The blocked fresh water was diverted to Wakulla Springs, approximately doubling its flow. Phase 2 occurred when heavy rainfall resulted in temporarily high creek flows to nearby sinkholes that purged the salt water from the Spring Creek Springs caves. Phase 3 occurred after streams returned to base flow. The Spring Creek Springs caves retained a lower equivalent fresh water head than Wakulla Springs, causing them to flow large amounts of fresh water while Wakulla Springs flow was reduced by about half.

  12. Nutrition Frontiers - Spring 2017 | Division of Cancer Prevention

    Cancer.gov

    Volume 8, Issue 2 Dear Colleague, The spring issue of Nutrition Frontiers showcases the calcium/magnesium intake ratio in colorectal adenoma, the role of PPARγ in metabolism and reproduction, and the effects of time-restricted feeding on metabolic parameters. Meet our spotlight investigator, Dr. Maria Cruz-Correa, and her research on gut bacterial genes, diet, and colorectal neoplasia. Learn about matcha, the powdered leaf tea, upcoming announcements and more. |

  13. Silent Spring after 50 years.

    PubMed

    Davis, Frederick R

    2012-12-01

    As Silent Spring passed the half-century mark, historians have continued to reflect on its significance. For this issue of Endeavour, we drew together six articles that explore a few of the many legacies of this remarkable book. Given the impressive scope and breadth of the papers in this issue, it is clear that Silent Spring, and the shock waves surrounding its publication, continue to provide rich fodder for historical analysis.

  14. Spring Small Grains Area Estimation

    NASA Technical Reports Server (NTRS)

    Palmer, W. F.; Mohler, R. J.

    1986-01-01

    SSG3 automatically estimates acreage of spring small grains from Landsat data. Report describes development and testing of a computerized technique for using Landsat multispectral scanner (MSS) data to estimate acreage of spring small grains (wheat, barley, and oats). Application of technique to analysis of four years of data from United States and Canada yielded estimates of accuracy comparable to those obtained through procedures that rely on trained analysis.

  15. 49 CFR 229.65 - Spring rigging.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ..., except when that spring is part of a nest of three or more springs and none of the other springs in the nest has its top leaf or any other three leaves broken. An outer coil spring or saddle may not be...

  16. 49 CFR 229.65 - Spring rigging.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ..., except when that spring is part of a nest of three or more springs and none of the other springs in the nest has its top leaf or any other three leaves broken. An outer coil spring or saddle may not be...

  17. 49 CFR 229.65 - Spring rigging.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ..., except when that spring is part of a nest of three or more springs and none of the other springs in the nest has its top leaf or any other three leaves broken. An outer coil spring or saddle may not be...

  18. 49 CFR 229.65 - Spring rigging.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ..., except when that spring is part of a nest of three or more springs and none of the other springs in the nest has its top leaf or any other three leaves broken. An outer coil spring or saddle may not be...

  19. 49 CFR 229.65 - Spring rigging.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ..., except when that spring is part of a nest of three or more springs and none of the other springs in the nest has its top leaf or any other three leaves broken. An outer coil spring or saddle may not be...

  20. 14 CFR 23.687 - Spring devices.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Spring devices. 23.687 Section 23.687... Systems § 23.687 Spring devices. The reliability of any spring device used in the control system must be established by tests simulating service conditions unless failure of the spring will not cause flutter...

  1. 14 CFR 23.687 - Spring devices.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Spring devices. 23.687 Section 23.687... Systems § 23.687 Spring devices. The reliability of any spring device used in the control system must be established by tests simulating service conditions unless failure of the spring will not cause flutter...

  2. 14 CFR 23.687 - Spring devices.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Spring devices. 23.687 Section 23.687... Systems § 23.687 Spring devices. The reliability of any spring device used in the control system must be established by tests simulating service conditions unless failure of the spring will not cause flutter...

  3. 14 CFR 23.687 - Spring devices.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Spring devices. 23.687 Section 23.687... Systems § 23.687 Spring devices. The reliability of any spring device used in the control system must be established by tests simulating service conditions unless failure of the spring will not cause flutter...

  4. 14 CFR 23.687 - Spring devices.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Spring devices. 23.687 Section 23.687... Systems § 23.687 Spring devices. The reliability of any spring device used in the control system must be established by tests simulating service conditions unless failure of the spring will not cause flutter...

  5. Fossilization Processes in Thermal Springs

    NASA Technical Reports Server (NTRS)

    Farmer, Jack D.; Cady, Sherry; Desmarais, David J.; Chang, Sherwood (Technical Monitor)

    1995-01-01

    To create a comparative framework for the study of ancient examples, we have been carrying out parallel studies of the microbial biosedimentology, taphonomy and geochemistry of modem and sub-Recent thermal spring deposits. One goal of the research is the development of integrated litho- and taphofacies models for siliceous and travertline sinters. Thermal springs are regarded as important environments for the origin and early evolution of life on Earth, and we seek to utilize information from the fossil record to reconstruct the evolution of high temperature ecosystems. Microbial contributions to the fabric of thermal spring sinters occur when population growth rates keep pace with, or exceed rates of inorganic precipitation, allowing for the development of continuous biofilms or mats. In siliceous thermal springs, microorganisms are typically entombed while viable. Modes of preservation reflect the balance between rates of organic matter degradation, silica precipitation and secondary infilling. Subaerial sinters are initially quite porous and permeable and at temperatures higher than about 20 C, organic materials are usually degraded prior to secondary infilling of sinter frameworks. Thus, organically-preserved microfossils are rare and fossil information consists of characteristic biofabrics formed by the encrustation and underplating of microbial mat surfaces. This probably accounts for the typically low total organic carbon values observed in thermal spring deposits. In mid-temperature, (approx. 35 - 59 C) ponds and outflows, the surface morphology of tufted Phormidium mats is preserved through mat underplating by thin siliceous: crusts. Microbial taxes lead to clumping of ceils and/or preferred filament orientations that together define higher order composite fabrics in thermal spring stromatolites (e.g. network, coniform, and palisade). At lower temperatures (less than 35 C), Calothrix mats cover shallow terracette pools forming flat carpets or pustular

  6. Fossilization Processes in Thermal Springs

    NASA Technical Reports Server (NTRS)

    Farmer, Jack D.; Cady, Sherry; Desmarais, David J.; Chang, Sherwood (Technical Monitor)

    1995-01-01

    To create a comparative framework for the study of ancient examples, we have been carrying out parallel studies of the microbial biosedimentology, taphonomy and geochemistry of modem and sub-Recent thermal spring deposits. One goal of the research is the development of integrated litho- and taphofacies models for siliceous and travertline sinters. Thermal springs are regarded as important environments for the origin and early evolution of life on Earth, and we seek to utilize information from the fossil record to reconstruct the evolution of high temperature ecosystems. Microbial contributions to the fabric of thermal spring sinters occur when population growth rates keep pace with, or exceed rates of inorganic precipitation, allowing for the development of continuous biofilms or mats. In siliceous thermal springs, microorganisms are typically entombed while viable. Modes of preservation reflect the balance between rates of organic matter degradation, silica precipitation and secondary infilling. Subaerial sinters are initially quite porous and permeable and at temperatures higher than about 20 C, organic materials are usually degraded prior to secondary infilling of sinter frameworks. Thus, organically-preserved microfossils are rare and fossil information consists of characteristic biofabrics formed by the encrustation and underplating of microbial mat surfaces. This probably accounts for the typically low total organic carbon values observed in thermal spring deposits. In mid-temperature, (approx. 35 - 59 C) ponds and outflows, the surface morphology of tufted Phormidium mats is preserved through mat underplating by thin siliceous: crusts. Microbial taxes lead to clumping of ceils and/or preferred filament orientations that together define higher order composite fabrics in thermal spring stromatolites (e.g. network, coniform, and palisade). At lower temperatures (less than 35 C), Calothrix mats cover shallow terracette pools forming flat carpets or pustular

  7. Changes in European spring phenology

    NASA Astrophysics Data System (ADS)

    Ahas, R.; Aasa, A.; Menzel, A.; Fedotova, V. G.; Scheifinger, H.

    2002-11-01

    The European phyto-phenological database of the EU 5th Framework project POSITIVE facilitated an examination of the rate and spatial pattern of changes in spring phenology across Europe. This database was collected, evaluated and composed from different national databases of Eastern and Western Europe covering the time period 1951-1998. Results show that spring phases have advanced four weeks in Western and Central Europe, and have been delayed up to two weeks in Eastern Europe. Western European spring starts earlier because of the intensive flow of warmer Atlantic air masses; the Eastern part of Europe has a different phenological rhythm and trends, that can be explained by the influence of the Siberian high. The highest rate of significant (p < 0.05) phenological change (-0.3 to -0.4 days per year) occurs in the Western Europe and Baltic Sea regions for early spring phases of hazel and colts-foot. Spring phases of birch, apple and lilac, and summer phases, such as the flowering of linden, tend to occur earlier with an average rate of -0.1 to 0.3 days per year.

  8. White sulphur springs, West Virginia

    SciTech Connect

    Lund, J.W.

    1996-05-01

    A large, historic, health-oriented mineral springs resort, The Greenbrier, occupies 2,600 ha (6,500 acres) in an upland valley of the Allegheny Mountains near the West Virginia-Virginia border in the eastern US Natural mineral water at 17{degree}C (62.5{degree}F) and with a high sulfate content is piped to individual soaking tubs of the mineral-bath wing, where it is heated by electricity to the desired temperature. Tubs are drained and filled after each use, so no chemical treatment is required. Water from a fresh-water spring is piped to an outdoor pool and the Grand Indoor Pool, where it is treated with chlorine and heated by steam. Thus, this mineral spring is not really geothermal, but has a two-century history of use by a spa resort. A chemical analysis of the spring gives a flow of 1.6 L/s (25 gpm) with sulphate 1400 mg/L, bicarbonate 210 mg/L, magnesium 130 mg/L, sodium 22 mg/L, silica 17 mg/L, chloride 17 mg/L, hydrogen sulfide 13 mg/L, potassium 1.2 mg/L and iron 1.1 mg/L (from Springs of West Virginia, West Virginia Geological and Economic Survey, 1986).

  9. Microbial Biosignatures in High Iron Thermal Springs

    NASA Astrophysics Data System (ADS)

    Parenteau, M. N.; Embaye, T.; Jahnke, L. L.; Cady, S. L.

    2003-12-01

    . The mat also contained abundant n,n-wax esters of C32 to C37, characteristic of Chloroflexus. 10-Methyl-C16 was also detected, indicative of sulfate reducing bacteria (SRB). The narrow Oscillatoria mat was dominated by the aforementioned cyanobacterial biomarkers as well as iso-C17:1, a biomarker for some groups of SRB. Unusual dimethyl fatty acids were also detected. The goal of this research is to provide an initial dataset that will illustrate the maximum amount of paleobiological and paleoenvironmental information expected to form in these types of iron deposits. Insights from our research may help elucidate the role of phototrophs in the deposition of BIFs on Earth, and may assist in the search for evidence of fossilized microbial life in iron deposits on Mars. Pierson, B.K., M.N. Parenteau, and B.M. Griffin, Phototrophs in high-iron-concentration microbial mats: Ecology of phototrophs in an iron-depositing hot spring, Appl. Environ. Microbiol., 65, 5474-5483, 1999. Pierson, B.K., and M.N. Parenteau, Phototrophs in high iron microbial mats: Microstructure of mats in iron-depositing hot springs, FEMS Microbiology Ecology 32, 181-196, 2000. Trouwborst, R., G. Koch, G. Luther, and B.K. Pierson, Photosynthesis and iron in hot spring microbial mats (abstract), NAI General Meeting, Astrobiology 2(4), 206, 2003.

  10. Motor gasoline assessment, Spring 1997

    SciTech Connect

    1997-07-01

    The springs of 1996 and 1997 provide an excellent example of contrasting gasoline market dynamics. In spring 1996, tightening crude oil markets pushed up gasoline prices sharply, adding to the normal seasonal gasoline price increases; however, in spring 1997, crude oil markets loosened and crude oil prices fell, bringing gasoline prices down. This pattern was followed throughout the country except in California. As a result of its unique reformulated gasoline, California prices began to vary significantly from the rest of the country in 1996 and continued to exhibit distinct variations in 1997. In addition to the price contrasts between 1996 and 1997, changes occurred in the way in which gasoline markets were supplied. Low stocks, high refinery utilizations, and high imports persisted through 1996 into summer 1997, but these factors seem to have had little impact on gasoline price spreads relative to average spread.

  11. Bouncing dynamics of a spring

    NASA Astrophysics Data System (ADS)

    Hubert, M.; Ludewig, F.; Dorbolo, S.; Vandewalle, N.

    2014-04-01

    We consider the dynamics of a deformable object bouncing on an oscillating plate and we propose to model its deformations. For this purpose, we use a spring linked to a damper. Elastic properties and viscous effects are taken into account. From the bouncing spring equations of motion, we emphasize the relevant parameters of the dynamics. We discuss the range of parameters in which elastic deformations do not influence the bouncing dynamics of this object and compare this behavior with the bouncing ball dynamics. By calculating the spring bouncing threshold, we evidence the effect of resonance and prove that elastic properties can make the bounce easier. This effect is for example encountered in the case of bouncing droplets. We also consider bifurcation diagrams in order to describe the consequences of a dependence on the frequency. Finally, hysteresis in the dynamics is presented.

  12. Spring in Inca City III

    NASA Image and Video Library

    2014-11-13

    This image, acquired by NASA Mars Reconnaissance Orbiter, shows there are a few more fans on the ridge as spring activity progresses in Inca City. In Inca City another week has passed, and there are a few more fans on the ridge. We are studying the sequence of spring activity with the help of citizen scientists at the Planetfour website, sponsored by Zooniverse. Citizens of planet Earth log on and identify and measure fans and blotches in the South polar region of Mars imaged by HiRISE. With their help we can study the polar weather by looking at how the fan directions change through the spring. We see how the number of fans and blotches depends on the thickness of the ice layer and how high the sun is in the sky. http://photojournal.jpl.nasa.gov/catalog/PIA18894

  13. Mechanics of anisotropic spring networks

    NASA Astrophysics Data System (ADS)

    Zhang, T.; Schwarz, J. M.; Das, Moumita

    2014-12-01

    We construct and analyze a model for a disordered linear spring network with anisotropy. The modeling is motivated by, for example, granular systems, nematic elastomers, and ultimately cytoskeletal networks exhibiting some underlying anisotropy. The model consists of a triangular lattice with two different bond occupation probabilities, px and py, for the linear springs. We develop an effective medium theory (EMT) to describe the network elasticity as a function of px and py. We find that the onset of rigidity in the EMT agrees with Maxwell constraint counting. We also find beyond linear behavior in the shear and bulk modulus as a function of occupation probability in the rigid phase for small strains, which differs from the isotropic case. We compare our EMT with numerical simulations to find rather good agreement. Finally, we discuss the implications of extending the reach of effective medium theory as well as draw connections with prior work on both anisotropic and isotropic spring networks.

  14. The Dependence of the Spring Constant in the Linear Range on Spring Parameters

    ERIC Educational Resources Information Center

    Khotimah, Siti Nurul; Viridi, Sparisoma; Widayani; Khairurrijal

    2011-01-01

    In basic physics laboratories, springs are normally used to determine both spring constants and the Earth's gravitational acceleration. Students generally do not notice that the spring constant is not a universal constant, but depends on the spring parameters. This paper shows and verifies that the spring constant in the linear range is inversely…

  15. The Dependence of the Spring Constant in the Linear Range on Spring Parameters

    ERIC Educational Resources Information Center

    Khotimah, Siti Nurul; Viridi, Sparisoma; Widayani; Khairurrijal

    2011-01-01

    In basic physics laboratories, springs are normally used to determine both spring constants and the Earth's gravitational acceleration. Students generally do not notice that the spring constant is not a universal constant, but depends on the spring parameters. This paper shows and verifies that the spring constant in the linear range is inversely…

  16. SPring-8 twin helical undulator.

    PubMed

    Hara, T; Tanaka, T; Tanabe, T; Maréchal, X M; Kumagai, K; Kitamura, H

    1998-05-01

    There are several ways of producing circularly polarized light, such as using asymmetric devices, crossed undulators etc. The SPring-8 helical undulator introduces a simple way of producing both horizontal and vertical fields in one undulator. All the magnet arrays are arranged above and below the plane of the electron orbit, so there is no limitation of access from the sides of the undulator. For the SPring-8 BL25SU, two helical undulators will be installed in tandem, and the helicity of the polarization can be switched at up to 10 Hz using five kicker magnets.

  17. Spring-Blade Impact Tester

    NASA Technical Reports Server (NTRS)

    Holmes, Alan M.; Champagne, James W.

    1989-01-01

    Record of energy relationships retrieved from compact, portable tester. Spring-blade impact tester developed to support evaluation of tolerance to damage of struts under consideration for use in Space Station. Approach offers potential for determining damage as function of change in relationship between applied and absorbed energies as applied energy successively increased with each impact. Impactor strikes specimen at moment of maximum kinetic energy after spring blades released from cocked position. Concept also provides potential for measuring behavior during impact, and energy relationships retrievable from oscilloscope traces of impact.

  18. Meeting Demand.

    ERIC Educational Resources Information Center

    Daneman, Kathy

    1998-01-01

    Addresses how a school district can use temporary classroom space to meet increasing student enrollment while additional space is being built. Provides examples of using portable facilities to supplement educational sites, including how to protect students who are in portable classrooms when tornadoes appear. (GR)

  19. Low-level Waste Forum meeting report. Spring meeting, April 28--30, 1993

    SciTech Connect

    1993-12-31

    The Low-Level Radioactive Waste Forum is an association of representatives of states and compacts established to facilitate state and compact commission implementation of the Low-Level Radioactive Waste Policy Act of 1980 and the Low-Level Radioactive Waste Policy Amendments Act of 1985 and to promote the objectives of low-level radioactive waste regional compacts. The Forum provides an opportunity for states and compacts to share information with one another and to exchange views with officials of federal agencies. The Forum participants include representatives from regional compacts, designated host states, unaffiliated states, and states with currently-operating low-level radioactive waste facilities. This report contains information synthesizing the accomplishments of the Forum, as well as any new advances that have been made in the management of low-level radioactive wastes.

  20. The Forced Hard Spring Equation

    ERIC Educational Resources Information Center

    Fay, Temple H.

    2006-01-01

    Through numerical investigations, various examples of the Duffing type forced spring equation with epsilon positive, are studied. Since [epsilon] is positive, all solutions to the associated homogeneous equation are periodic and the same is true with the forcing applied. The damped equation exhibits steady state trajectories with the interesting…

  1. The Forced Soft Spring Equation

    ERIC Educational Resources Information Center

    Fay, T. H.

    2006-01-01

    Through numerical investigations, this paper studies examples of the forced Duffing type spring equation with [epsilon] negative. By performing trial-and-error numerical experiments, the existence is demonstrated of stability boundaries in the phase plane indicating initial conditions yielding bounded solutions. Subharmonic boundaries are…

  2. Sources of antibiotics: Hot springs.

    PubMed

    Mahajan, Girish B; Balachandran, Lakshmi

    2016-11-24

    The discovery of antibiotics heralded an era of improved health care. However, the over-prescription and misuse of antibiotics resulted in the development of resistant strains of various pathogens. Since then, there has been an incessant search for discovering novel compounds from bacteria at various locations with extreme conditions. The soil is one of the most explored locations for bioprospecting. In recent times, hypersaline environments and symbiotic associations have been investigated for novel antimicrobial compounds. Among the extreme environments, hot springs are comparatively less explored. Many researchers have reported the presence of microbial life and secretion of antimicrobial compounds by microorganisms in hot springs. A pioneering research in the corresponding author's laboratory resulted in the identification of the antibiotic Fusaricidin B isolated from a hot spring derived eubacteria, Paenibacillus polymyxa, which has been assigned a new application for its anti-tubercular properties. The corresponding author has also reported anti-MRSA and anti-VRE activity of 73 bacterial isolates from hot springs in India.

  3. Finding Spring on Planet X

    ERIC Educational Resources Information Center

    Simoson, Andrew J.

    2007-01-01

    For a given orbital period and eccentricity, we determine the maximum time lapse between the winter solstice and the spring equinox on a planet. In addition, given an axial precession path, we determine the effects on the seasons. This material can be used at various levels to illustrate ideas such as periodicity, eccentricity, polar coordinates,…

  4. Voronoi Diagrams and Spring Rain

    ERIC Educational Resources Information Center

    Perham, Arnold E.; Perham, Faustine L.

    2011-01-01

    The goal of this geometry project is to use Voronoi diagrams, a powerful modeling tool across disciplines, and the integration of technology to analyze spring rainfall from rain gauge data over a region. In their investigation, students use familiar equipment from their mathematical toolbox: triangles and other polygons, circumcenters and…

  5. TEACH Evaluation, Spring 2002. Report.

    ERIC Educational Resources Information Center

    Meuschke, Daylene M; Dixon, P. Scott; Gribbons, Barry C.

    TEACH is a partnership program involving California State University, Bakersfield (CSUB), College of the Canyons (COC) and the Newhall and Hart School Districts to provide students with supervised fieldwork and specialized support services while pursuing a California teaching credential. This Spring 2002 TEACH evaluation reports on surveys of COC…

  6. NOVA Spring 2000 Teacher's Guide.

    ERIC Educational Resources Information Center

    Colombo, Luann; Gregoire, Tanya; Ransick, Kristina; Sammons, Fran Lyons; Sammons, James

    This teacher's guide complements six programs that aired on the Public Broadcasting System (PBS) in the spring of 2000. Programs include: (1) "Lost on Everest"; (2) "Lost Tribes of Israel"; (3) "Crocodiles"; (4) "Lost at Sea: The Search for Longitude"; (5) "Global Warming"; and (6) "Secrets of…

  7. Spring for It: First Novels

    ERIC Educational Resources Information Center

    Hoffert, Barbara

    2010-01-01

    How do publishers describe the first novels they will be releasing this spring and summer? "Amazing," "fabulous," and "unique" are words that pop up frequently, though hats off to one publicist forthright or cheeky enough to call a work "weird Western/horror." The proof of such praise is in the reading, but why not check out this preview of first…

  8. Registration of 'Rollag' spring wheat

    USDA-ARS?s Scientific Manuscript database

    Fusarium head blight (FHB) (caused primarily by Fusarium graminearum Schwabe) is a disease that annually threatens wheat (Triticum aestivum L.) grown in the northern plains of the United States. Resistance to this disease is a high priority trait in the University of Minnesota’s spring wheat breedi...

  9. Changes in North American spring

    NASA Astrophysics Data System (ADS)

    Schwartz, Mark D.; Reiter, Bernhard E.

    2000-06-01

    Onset of the growing season in mid-latitudes is a period of rapid transition, which includes heightened interaction between living organisms and the lower atmosphere. Phenological events (seasonal plant and animal activity driven by environmental factors), such as first leaf appearance or flower bloom in plants, can serve as convenient markers to monitor the progression of this yearly shift, and assess longer-term change resulting from climate variations. We examined spring seasons across North America over the 1900-1997 period using modelled and actual lilac phenological data. Regional differences were detected, as well as an average 5-6 day advance toward earlier springs, over a 35-year period from 1959-1993. Driven by seasonally warmer temperatures, this modification agrees with earlier bird nesting times, and corresponds to a comparable advance of spring plant phenology described in Europe. These results also align with trends towards longer growing seasons, reported by recent carbon dioxide and satellite studies. North American spring warming is strongest regionally in the northwest and northeast portions. Meanwhile, slight autumn cooling is apparent in the central USA.

  10. Community Needs Assessment, Spring 1982.

    ERIC Educational Resources Information Center

    Dennis-Rounds, Jan

    In Spring 1982, a districtwide survey was conducted by Cerritos College (CC) to assess the educational needs of the surrounding community. Residents were asked to provide demographic information and respond to questions about their awareness of the college, their perception and evaluation of various CC roles, and their preferences for courses and…

  11. Finding Spring on Planet X

    ERIC Educational Resources Information Center

    Simoson, Andrew J.

    2007-01-01

    For a given orbital period and eccentricity, we determine the maximum time lapse between the winter solstice and the spring equinox on a planet. In addition, given an axial precession path, we determine the effects on the seasons. This material can be used at various levels to illustrate ideas such as periodicity, eccentricity, polar coordinates,…

  12. Carnivorous arthropods after spring flood

    USDA-ARS?s Scientific Manuscript database

    Spring flooding is a common practice in Wisconsin cranberries, but flooding as insect control produces variable results among marshes. This project is aimed at figuring out why it works, and why it sometimes doesn’t. We have focused on tracking arthropod populations to explain the observed patterns ...

  13. NOVA Spring 1999 Teacher's Guide.

    ERIC Educational Resources Information Center

    Colombo, Luann; Ransick, Kristina; Recio, Belinda

    This teacher's guide complements six programs that aired on the Public Broadcasting System (PBS) in the spring of 1999. Programs include: (1) "Surviving AIDS"; (2) "Secrets of Making Money"; (3) "Escape!: Fire"; (4) "Escape!: Car Crash"; (5) "Volcanoes of the Deep"; and (6) "Odyssey of Life:…

  14. Voronoi Diagrams and Spring Rain

    ERIC Educational Resources Information Center

    Perham, Arnold E.; Perham, Faustine L.

    2011-01-01

    The goal of this geometry project is to use Voronoi diagrams, a powerful modeling tool across disciplines, and the integration of technology to analyze spring rainfall from rain gauge data over a region. In their investigation, students use familiar equipment from their mathematical toolbox: triangles and other polygons, circumcenters and…

  15. Spring for It: First Novels

    ERIC Educational Resources Information Center

    Hoffert, Barbara

    2010-01-01

    How do publishers describe the first novels they will be releasing this spring and summer? "Amazing," "fabulous," and "unique" are words that pop up frequently, though hats off to one publicist forthright or cheeky enough to call a work "weird Western/horror." The proof of such praise is in the reading, but why not check out this preview of first…

  16. Archaeal Nitrification in Hot Springs

    NASA Astrophysics Data System (ADS)

    Richter, A.; Daims, H.; Reigstad, L.; Wanek, W.; Wagner, M.; Schleper, C.

    2006-12-01

    Biological nitrification, i.e. the aerobic conversion of ammonia to nitrate via nitrite, is a major component of the global nitrogen cycle. Until recently, it was thought that the ability to aerobically oxidize ammonia was confined to bacteria of the phylum Proteobacteria. However, it has recently been shown that Archaea of the phylum Crenarchaeota are also capable of ammonia oxidation. As many Crenarchaeota are thermophilic or hyperthermophilic, and at least some of them are capable of ammonia oxidation we speculated on the existence of (hyper)thermophilic ammonia-oxidizing archaea (AOA). Using PCR primers specifically targeting the archaeal ammonia monooxygenase (amoA) gene, we were indeed able to confirm the presence of such organisms in several hot springs in Reykjadalur, Iceland. These hot springs exhibited temperatures well above 80 °C and pH values ranging from 2.0 to 4.5. To proof that nitrification actually took place under these extreme conditions, we measured gross nitrification rates by the isotope pool dilution method; we added 15N-labelled nitrate to the mud and followed the dilution of the label by nitrate production from ammonium either in situ (incubation in the hot spring) or under controlled conditions in the laboratory (at 80 °C). The nitrification rates in the hot springs ranged from 0.79 to 2.22 mg nitrate-N per L of mud and day. Controls, in which microorganisms were killed before the incubations, demonstrated that the nitrification was of biological origin. Addition of ammonium increased the gross nitrification rate approximately 3-fold, indicating that the nitrification was ammonium limited under the conditions used. Collectively, our study provides evidence that (1) AOA are present in hot springs and (2) that they are actively nitrifying. These findings have major implications for our understanding of nitrogen cycling of hot environments.

  17. Staff meeting

    ScienceCinema

    None

    2016-07-12

    I would like to invite all members of the CERN Personnel to a meeting on Wednesday 16 January 2008 at 3:00 p.m. Main Auditorium (bldg 500) to convey my best wishes for the new year, to review CERN’s activities during 2007 and to present the perspectives for 2008, the year of the LHC start-up. Closed-circuit transmission of the meeting will be available in the Council Chamber and in the AB Auditorium (Meyrin), the AB Auditorium (Prévessin), the IT Auditorium (Bldg. 31) and the AT Auditorium (Bldg. 30). Simultaneous translation into English will be available in the main Auditorium. Best wishes for the festive season! Robert AYMAR

  18. Meeting information

    NASA Astrophysics Data System (ADS)

    The 1986 Ocean Sciences Meeting of the American Geophysical Union and the American Society of Limnology and Oceanography (ASLO) will be held January 13-17, 1986, in New Orleans, La., at the Fairmont Hotel. Co-sponsoring societies are the Acoustical Society of America (ASA), the American Meteorological Society (AMS), the Marine Technology Society (MTS), and the Institute of Electrical and Electronics Engineers, Oceanic Engineering Society (OES).

  19. 77 FR 3750 - U.S. Air Force Academy Board of Visitors Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-25

    ... Department of the Air Force U.S. Air Force Academy Board of Visitors Notice of Meeting AGENCY: U.S. Air Force... States Air Force Academy (USAFA) Board of Visitors (BoV) will hold a meeting in Harmon Hall at the United States Air Force Academy in Colorado Springs, Colorado on 10-11 Feb 2012. The meeting sessions on 10...

  20. 78 FR 13329 - U.S. Air Force Academy Board of Visitors Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-27

    ... Department of the Air Force U.S. Air Force Academy Board of Visitors Notice of Meeting AGENCY: U.S. Air Force.... Air Force Academy (USAFA) Board of Visitors (BoV) will hold a meeting in Harmon Hall at the United States Air Force Academy in Colorado Springs, Colorado on March 15-16, 2013. The meeting will begin at...

  1. A Low Frequency FBG Accelerometer with Symmetrical Bended Spring Plates

    PubMed Central

    Liu, Fufei; Dai, Yutang; Karanja, Joseph Muna; Yang, Minghong

    2017-01-01

    To meet the requirements for low-frequency vibration monitoring, a new type of FBG (fiber Bragg grating) accelerometer with a bended spring plate is proposed. Two symmetrical bended spring plates are used as elastic elements, which drive the FBG to produce axial strains equal in magnitude but opposite in direction when exciting vibrations exist, leading to doubling the wavelength shift of the FBG. The mechanics model and a numerical method are presented in this paper, with which the influence of the structural parameters on the sensitivity and the eigenfrequency are discussed. The test results show that the sensitivity of the accelerometer is more than 1000 pm/g when the frequency is within the 0.7–20 Hz range. PMID:28117740

  2. A Low Frequency FBG Accelerometer with Symmetrical Bended Spring Plates.

    PubMed

    Liu, Fufei; Dai, Yutang; Karanja, Joseph Muna; Yang, Minghong

    2017-01-22

    To meet the requirements for low-frequency vibration monitoring, a new type of FBG (fiber Bragg grating) accelerometer with a bended spring plate is proposed. Two symmetrical bended spring plates are used as elastic elements, which drive the FBG to produce axial strains equal in magnitude but opposite in direction when exciting vibrations exist, leading to doubling the wavelength shift of the FBG. The mechanics model and a numerical method are presented in this paper, with which the influence of the structural parameters on the sensitivity and the eigenfrequency are discussed. The test results show that the sensitivity of the accelerometer is more than 1000 pm/g when the frequency is within the 0.7-20 Hz range.

  3. FOSSIL SPRINGS ROADLESS AREA, ARIZONA.

    USGS Publications Warehouse

    Beard, L.S.; Ellis, C.E.

    1984-01-01

    Based on field studies, the Fossil Springs Roadless Area in central Arizona is concluded to have little promise for the occurrence of mineral or energy resources. Rocks in the Supai Formation (Pennsylvanian-Permian) near the central part of the roadless area contain widespread but spotty copper mineralization and trace amounts of uranium. Analyses obtained during the study define geochemical anomalies in two portions of the area that remain unexplained. The suites of anomalous metals suggest the possibility of hydrothermal veins and the presence of ultramafic rocks; neither were found in the field. Although there is little promise for the occurrence of mineral resources in the Fossil Springs Roadless Area, studies to identify the source of the geochemical anomalies could have valuable implications for regional studies and mineral exploration in the surrounding area.

  4. NAVO MSRC Navigator. Spring 2008

    DTIC Science & Technology

    2008-01-01

    CFD), Climate/Weather/Ocean Modeling and Simulation (CWO), Environmental Quality Modeling and Simulation (EQM), Computational Electromagnetic...EINSTEIN and DAVINCI Come to the MSRC The Porthole 19 Visitors to the Naval Oceanographic Office Major Shared Resource Center Navigator Tools and...Events 5SPRING 2008NAVO MSRC NAVIGATOR IntroductIon Higher-altitude missile and re-entry vehicle flowfield simulations often require the

  5. Controlling proteins through molecular springs.

    PubMed

    Zocchi, Giovanni

    2009-01-01

    We argue that the mechanical control of proteins-the notion of controlling chemical reactions and processes by mechanics-is conceptually interesting. We give a brief review of the main accomplishments so far, leading to our present approach of using DNA molecular springs to exert controlled stresses on proteins. Our focus is on the physical principles that underlie both artificial mechanochemical devices and natural mechanisms of allostery.

  6. Strategic Studies Quarterly- Spring 2016

    DTIC Science & Technology

    2016-01-01

    Khyber Pakhtunkhwa, bordering Afghanistan. A number of analysts agree that if conflict breaks out with India, Pakistan would immediately rede - ploy...the military should not risk its capacity to fight just to become an instrument of social progress but at the same rook pride in ending the...the " social experiments" conducted during his tenure are not yet known. The former Secretary STRATEGIC STUDIES QuARTERLY + SPRING 2016 [ 149] Book

  7. 49 CFR 236.822 - Switch, spring.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Switch, spring. 236.822 Section 236.822 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, spring. A switch equipped with a spring device which forces the points to their original...

  8. 49 CFR 236.822 - Switch, spring.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Switch, spring. 236.822 Section 236.822 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, spring. A switch equipped with a spring device which forces the points to their original...

  9. 14 CFR 27.687 - Spring devices.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Spring devices. 27.687 Section 27.687... STANDARDS: NORMAL CATEGORY ROTORCRAFT Design and Construction Control Systems § 27.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  10. 14 CFR 29.687 - Spring devices.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Spring devices. 29.687 Section 29.687... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Design and Construction Control Systems § 29.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  11. 14 CFR 27.687 - Spring devices.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Spring devices. 27.687 Section 27.687... STANDARDS: NORMAL CATEGORY ROTORCRAFT Design and Construction Control Systems § 27.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  12. Effective Mass of an Oscillating Spring

    ERIC Educational Resources Information Center

    Rodriguez, Eduardo E.; Gesnouin, Gabriel A.

    2007-01-01

    We present an experimental method to obtain the effective mass of an unloaded oscillating spring. We measure the period "T"("n") of the partial springs that result when hanging "n" of the total "N" coils of a given spring. Data are correlated with the expectation of a simple model for "T"("n") that takes into account the effective mass of the…

  13. 14 CFR 29.687 - Spring devices.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Spring devices. 29.687 Section 29.687... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Design and Construction Control Systems § 29.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  14. 49 CFR 236.822 - Switch, spring.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Switch, spring. 236.822 Section 236.822 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, spring. A switch equipped with a spring device which forces the points to their original...

  15. 49 CFR 236.822 - Switch, spring.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Switch, spring. 236.822 Section 236.822 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, spring. A switch equipped with a spring device which forces the points to their original...

  16. 49 CFR 236.822 - Switch, spring.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Switch, spring. 236.822 Section 236.822 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, spring. A switch equipped with a spring device which forces the points to their original...

  17. 14 CFR 27.687 - Spring devices.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Spring devices. 27.687 Section 27.687... STANDARDS: NORMAL CATEGORY ROTORCRAFT Design and Construction Control Systems § 27.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  18. 14 CFR 27.687 - Spring devices.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Spring devices. 27.687 Section 27.687... STANDARDS: NORMAL CATEGORY ROTORCRAFT Design and Construction Control Systems § 27.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  19. 14 CFR 29.687 - Spring devices.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Spring devices. 29.687 Section 29.687... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Design and Construction Control Systems § 29.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  20. 14 CFR 29.687 - Spring devices.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Spring devices. 29.687 Section 29.687... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Design and Construction Control Systems § 29.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  1. 14 CFR 29.687 - Spring devices.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Spring devices. 29.687 Section 29.687... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Design and Construction Control Systems § 29.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  2. 14 CFR 27.687 - Spring devices.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Spring devices. 27.687 Section 27.687... STANDARDS: NORMAL CATEGORY ROTORCRAFT Design and Construction Control Systems § 27.687 Spring devices. (a) Each control system spring device whose failure could cause flutter or other unsafe...

  3. Force of an actin spring

    NASA Astrophysics Data System (ADS)

    Shin, Jennifer; Mahadevan, L.; Matsudaira, Paul

    2003-03-01

    The acrosomal process of the horseshoe crab sperm is a novel mechanochemical molecular spring that converts its elastic stain energy to mechanical work upon the chemical activation by Ca2+. Twisted and bent, the initial state of the acrosomal bundle features a high degree of complexity in its structure and the energy is believed to be stored in the highly strained actin filaments as an elastic potential energy. When activated, the bundle relaxes from the coil of the highly twisted and bent filaments to its straight conformation at a mean velocity of 15um/s. The mean extension velocity increases dramatically from 3um/s to 27um/s when temperature of the medium is changed from 9.6C to 32C (respective viscosities of 1.25-0.75cp), yet it exhibits a very weak dependence on changes in the medium viscosity (1cp-33cp). These experiments suggest that the uncoiling of the actin spring should be limited not by the viscosity of the medium but by the unlatching events of involved proteins at a molecular level. Unlike the viscosity-limited processes, where force is directly related to the rate of the reaction, a direct measurement is required to obtain the spring force of the acrosomal process. The extending acrosomal bundle is forced to push against a barrier and its elastic buckling response is analyzed to measure the force generated during the uncoiling.

  4. Conference scene: DGVS spring conference 2009.

    PubMed

    Kolligs, Frank Thomas

    2009-10-01

    The 3rd annual DGVS Spring Conference of the German Society for Gastroenterology (Deutsche Gesellschaft für Verdauungs- und Stoffwechselkrankheiten) was held at the Seminaris Campus Hotel in Berlin, Germany, on 8-9 May, 2009. The conference was organized by Roland Schmid and Matthias Ebert from the Technical University of Munich, Germany. The central theme of the meeting was 'translational gastrointestinal oncology: towards personalized medicine and individualized therapy'. The conference covered talks on markers for diagnosis, screening and surveillance of colorectal cancer, targets for molecular therapy, response prediction in clinical oncology, development and integration of molecular imaging in gastrointestinal oncology and translational research in clinical trial design. Owing to the broad array of topics and limitations of space, this article will focus on biomarkers, response prediction and the integration of biomarkers into clinical trials. Presentations mentioned in this summary were given by Matthias Ebert (Technical University of Munich, Germany), Esmeralda Heiden (Epigenomics, Berlin, Germany), Frank Kolligs (University of Munich, Germany), Florian Lordick (University of Heidelberg, Germany), Hans Jorgen Nielsen (University of Copenhagen, Denmark), Anke Reinacher-Schick (University of Bochum, Germany), Christoph Röcken (University of Berlin, Germany), Wolff Schmiegel (University of Bochum, Germany) and Thomas Seufferlein (University of Halle, Germany).

  5. Moving AGU Meetings sites [Comment to “Fall Meeting site”

    NASA Astrophysics Data System (ADS)

    Lanzerotti, L. J.; Maclennan, C. C.

    1984-04-01

    A recent letter to Eos by AGU member Dan Baker (March 13, 1984, p. 98) suggested that a method of reducing the attendance at the Fall AGU meeting would be to move it from San Francisco to his namesake, namely Bakersfield. He cited as a precedent the probably reduced attendance at the (at that time) upcoming Spring Meeting to be held in Cincinnati. While neither of us is promoting cities with names similar to ours, nevertheless we both believe that the recent meeting held in Cincinnati was a great success, even with the reduced number of registrants. The arrangements in the Convention Center, as well as the proximity of the hotels to the convention center and the amenities in the hotels were all excellent, and easily matched or surpassed the facilities in any of the cities in which the major meetings have been held to this time. Furthermore, we would like to make a qualitative judgment that the number of attendees at the individual sessions were perhaps as large as in a Baltimore or Washington meeting. In those meetings the number of registrants may have been larger, but the number of attendees at the given session may have been smaller; a significant proportion of the attendees at any given time would likely be visiting the offices of their contract monitors. Admittedly, the Spring Meeting has been an ideal opportunity to both attend scientific sessions and to lobby for additional research support. However, such lobbying does not necessarily make for increased attendance at the scientific sessions.

  6. Isolators Including Main Spring Linear Guide Systems

    NASA Technical Reports Server (NTRS)

    Goold, Ryan (Inventor); Buchele, Paul (Inventor); Hindle, Timothy (Inventor); Ruebsamen, Dale Thomas (Inventor)

    2017-01-01

    Embodiments of isolators, such as three parameter isolators, including a main spring linear guide system are provided. In one embodiment, the isolator includes first and second opposing end portions, a main spring mechanically coupled between the first and second end portions, and a linear guide system extending from the first end portion, across the main spring, and toward the second end portion. The linear guide system expands and contracts in conjunction with deflection of the main spring along the working axis, while restricting displacement and rotation of the main spring along first and second axes orthogonal to the working axis.

  7. Volusia Blue Spring - A Hydrological Treasure

    USGS Publications Warehouse

    German, Edward R.

    2008-01-01

    Springs are natural openings in the ground through which water beneath the surface discharges into hydrologic features such as lakes, rivers, or the ocean. The beautiful springs and spring rivers are among Florida's most valued natural resources; their gemlike refreshing waters have been a focal point of life from prehistoric times to the present (2008). The steady flow of freshwater at a nearly constant water temperature attracted animals now long absent from Florida's landscape. Fossil remains and human artifacts, discovered by divers from many spring runs, attest to the importance of springs to the State's earliest inhabitants. Explorers of Florida, from Ponce de Leon to John and William Bartram and others, often mentioned the springs that were scattered across central and northern Florida. As colonists and settlers began to inhabit Florida, springs continued to be the focus of human activity, becoming sites of missions, towns, and steamboat landings.

  8. Meeting Abstracts - Annual Meeting 2016.

    PubMed

    2016-04-01

    The AMCP Abstracts program provides a forum through which authors can share their insights and outcomes of advanced managed care practice through publication in AMCP's Journal of Managed Care & Specialty Pharmacy (JMCP). Most of the reviewed and unreviewed abstracts are presented as posters so that interested AMCP meeting attendees can review findings and query authors. The Student/Resident/ Fellow poster presentation (unreviewed) is Wednesday, April 20, 2016, and the Professional poster presentation (reviewed) is Thursday, April 21. The Professional posters will also be displayed on Friday, April 22. The reviewed abstracts are published in the JMCP Meeting Abstracts supplement. The AMCP Managed Care & Specialty Pharmacy Annual Meeting 2016 in San Francisco, California, is expected to attract more than 3,500 managed care pharmacists and other health care professionals who manage and evaluate drug therapies, develop and manage networks, and work with medical managers and information specialists to improve the care of all individuals enrolled in managed care programs. Abstracts were submitted in the following categories: Research Report: describe completed original research on managed care pharmacy services or health care interventions. Examples include (but are not limited to) observational studies using administrative claims, reports of the impact of unique benefit design strategies, and analyses of the effects of innovative administrative or clinical programs. Economic Model: describe models that predict the effect of various benefit design or clinical decisions on a population. For example, an economic model could be used to predict the budget impact of a new pharmaceutical product on a health care system. Solving Problems in Managed Care: describe the specific steps taken to introduce a needed change, develop and implement a new system or program, plan and organize an administrative function, or solve other types of problems in managed care settings. These

  9. 1. NORTHWEST FRONT, SOUTHWEST SIDE (SPRING HOUSE IN FOREGROUND; BATH ...

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

    1. NORTHWEST FRONT, SOUTHWEST SIDE (SPRING HOUSE IN FOREGROUND; BATH HOUSE AT REAR) (4 x 5 negative; 5 x 7 print) - Salt Sulphur Springs, Spring House, U.S. Route 219, Salt Sulphur Springs, Monroe County, WV

  10. Comparative spring mechanics in mantis shrimp.

    PubMed

    Patek, S N; Rosario, M V; Taylor, J R A

    2013-04-01

    Elastic mechanisms are fundamental to fast and efficient movements. Mantis shrimp power their fast raptorial appendages using a conserved network of exoskeletal springs, linkages and latches. Their appendages are fantastically diverse, ranging from spears to hammers. We measured the spring mechanics of 12 mantis shrimp species from five different families exhibiting hammer-shaped, spear-shaped and undifferentiated appendages. Across species, spring force and work increase with size of the appendage and spring constant is not correlated with size. Species that hammer their prey exhibit significantly greater spring resilience compared with species that impale evasive prey ('spearers'); mixed statistical results show that species that hammer prey also produce greater work relative to size during spring loading compared with spearers. Disabling part of the spring mechanism, the 'saddle', significantly decreases spring force and work in three smasher species; cross-species analyses show a greater effect of cutting the saddle on the spring force and spring constant in species without hammers compared with species with hammers. Overall, the study shows a more potent spring mechanism in the faster and more powerful hammering species compared with spearing species while also highlighting the challenges of reconciling within-species and cross-species mechanical analyses when different processes may be acting at these two different levels of analysis. The observed mechanical variation in spring mechanics provides insights into the evolutionary history, morphological components and mechanical behavior, which were not discernible in prior single-species studies. The results also suggest that, even with a conserved spring mechanism, spring behavior, potency and component structures can be varied within a clade with implications for the behavioral functions of power-amplified devices.

  11. Meeting Venus

    NASA Astrophysics Data System (ADS)

    Sterken, Christiaan; Aspaas, Per Pippin

    2013-06-01

    On 2-3 June 2012, the University of Tromsoe hosted a conference about the cultural and scientific history of the transits of Venus. The conference took place in Tromsoe for two very specific reasons. First and foremost, the last transit of Venus of this century lent itself to be observed on the disc of the Midnight Sun in this part of Europe during the night of 5 to 6 June 2012. Second, several Venus transit expeditions in this region were central in the global enterprise of measuring the scale of the solar system in the eighteenth century. The site of the conference was the Nordnorsk Vitensenter (Science Centre of Northern Norway), which is located at the campus of the University of Tromsoe. After the conference, participants were invited to either stay in Tromsoe until the midnight of 5-6 June, or take part in a Venus transit voyage in Finnmark, during which the historical sites Vardoe, Hammerfest, and the North Cape were to be visited. The post-conference program culminated with the participants observing the transit of Venus in or near Tromsoe, Vardoe and even from a plane near Alta. These Proceedings contain a selection of the lectures delivered on 2-3 June 2012, and also a narrative description of the transit viewing from Tromsoe, Vardoe and Alta. The title of the book, Meeting Venus, refers the title of a play by the Hungarian film director, screenwriter and opera director Istvan Szabo (1938-). The autobiographical movie Meeting Venus (1991) directed by him is based on his experience directing Tannhauser at the Paris Opera in 1984. The movie brings the story of an imaginary international opera company that encounters a never ending series of difficulties and pitfalls that symbolise the challenges of any multicultural and international endeavour. As is evident from the many papers presented in this book, Meeting Venus not only contains the epic tales of the transits of the seventeenth, eighteenth and nineteenth centuries, it also covers the conference

  12. Audiomagnetotelluric data from Spring, Cave, and Coyote Spring Valleys, Nevada

    USGS Publications Warehouse

    McPhee, Darcy K.; Chuchel, Bruce A.; Pellerin, Louise

    2006-01-01

    Audiomagnetotelluric (AMT) data along four profiles in Spring, Cave, and Coyote Spring Valleys are presented here. The AMT method is used to estimate the electrical resistivity of the earth over depth ranges of a few meters to greater than one kilometer. This method is a valuable tool for revealing subsurface structure and stratigraphy within the Basin and Range of eastern Nevada, therefore helping to define the geohydrologic framework in this region. We collected AMT data using the Geometrics StrataGem EH4 system, a four-channel, natural and controlled- source tensor system recording in the range of 10 to 92,000 Hz. To augment the low signal in the natural field, an unpolarized transmitter comprised of two horizontal-magnetic dipoles was used from 1,000 to 70,000 Hz. Profiles were 1.4 - 12.6 km in length with station spacing of 100-400 m. Data were recorded with the electrical (E) field parallel to and perpendicular to the regional geologic strike direction. Station locations and sounding curves, showing apparent resistivity, phase data, and coherency data, are presented here.

  13. Low-level waste forum meeting reports

    SciTech Connect

    1992-12-31

    This paper provides highlights from the spring meeting of the Low Level Radioactive Waste Forum. Topics of discussion included: state and compact reports; New York`s challenge to the constitutionality of the Low-Level Radioactive Waste Amendments Act of 1985; DOE technical assistance for 1993; interregional import/export agreements; Department of Transportation requirements; superfund liability; nonfuel bearing components; NRC residual radioactivity criteria.

  14. Spring in Inca City II

    NASA Image and Video Library

    2014-11-13

    It is about two weeks later in Inca City and the season is officially spring. Numerous changes have occurred. Large blotches of dust cover the araneiforms. Dark spots on the ridge show places where the seasonal polar ice cap has ruptured, releasing gas and fine material from the surface below. At the bottom of the image fans point in more than one direction from a single source, showing that the wind has changed direction while gas and dust were flowing out. Was the flow continuous or has the vent opened and closed? http://photojournal.jpl.nasa.gov/catalog/PIA18893

  15. Quantum model for entropic springs

    NASA Astrophysics Data System (ADS)

    Wang, Chiao-Hsuan; Taylor, Jacob M.

    2016-06-01

    Motivated by understanding the emergence of thermodynamic restoring forces and oscillations, we develop a quantum-mechanical model of a bath of spins coupled to the elasticity of a material. We show our model reproduces the behavior of a variety of entropic springs while enabling investigation of nonequilibrium resonator states in the quantum domain. We find our model emerges naturally in disordered elastic media, such as glasses, and is an additional expected effect in systems with anomalous specific heat and 1 /f noise at low temperatures due to two-level systems that fluctuate.

  16. ERDC MSRC Resource. Spring 2005

    DTIC Science & Technology

    2005-01-01

    OMB control number . 1. REPORT DATE 2005 2. REPORT TYPE 3. DATES COVERED 00-00-2005 to 00-00-2005 4. TITLE AND SUBTITLE ERDC MSRC Resource...Spring 2005 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER ...Ferry Road,Vicksburg,MS,39180-6199 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR

  17. CACTUS SPRING ROADLESS AREA, CALIFORNIA.

    USGS Publications Warehouse

    Matti, Jonathan C.; Kuizon, Lucia

    1984-01-01

    Geologic, geochemical, and geophysical studies together with a review of historic mining and prospecting activities indicate that the Cactus Spring Roadless Area in California has little promise for the occurrence of mineral or energy resources. Marble bodies occur in the northern part of the roadless area and are possible resources for building stone, crushed and quarried aggregate, and lime and magnesium for Portland cement and industrial applications. It is recommended that the terrane of marble be mapped and sampled carefully in order to evaluate the quantity and quality of the carbonate resources.

  18. Spring, 1980, DECUS symposium review

    SciTech Connect

    Allen, M.J.; Duffy, J.M.; McDonald, W.M.; Oppenheimer, J.L.; Brandt, J.J.; Grant, C.W.; O'Brien, D.W.; VanLehn, A.L.

    1980-10-24

    The Digital Equipment Computer Users Society (DECUS) holds biannual symposia where its membership and the host company can exchange ideas, problems, and solutions. This report by the newly formed DECUS Local User Group at LLL collects information gathered at the Spring '80 symposium in Chicago on April 22-25. Information is presented for the following special interest groups (SIGs): RSX/IAS SIG, VAX/VSM SIG, PASCAL (languages) SIG, networks SIG, TECO SIG, LSI-11 SIG, RT-11 SIG, site manager SIG, and database SIG. (RWR)

  19. 78 FR 64960 - Center for Scientific Review; Amended Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-30

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Center for Scientific Review; Amended Notice of Meeting... Spring Hotel, 8777 Georgia Avenue, Silver Spring, MD 20910 which was published in the Federal Register on...

  20. Spring in Inca City I

    NASA Image and Video Library

    2014-11-13

    Every winter a layer of carbon dioxide ice-or, dry ice-condenses in the Southern polar region, forming a seasonal polar cap less than 1 meter deep. Early in the spring the ice layer begins to sublimate (going directly from a solid to gas) from the top and bottom of the ice layer. Under the ice gas pressure builds up until a weak spot in the ice layer ruptures. The gas rushes out and as it escapes it erodes a bit of the surface. Fine particles are carried by the gas to the top of the ice and then fall out in fan-shaped deposits. The direction of the fan shows the direction either of the wind or down the slope. If the wind is not blowing a dark blotch settles around the spot the gas escaped. This region is known informally as Inca City, and it has a series of distinctive ridges. On the floor between the ridges are radially organized channels, known colloquially as spiders, more formally called "araneiforms." The channels have been carved in the surface over many years by the escaping pressurized gas. Every spring they widen just a bit. This was the first image to be acquired by NASA Mars Reconnaissance Orbiter after the sun rose on Inca City, marking the end to polar night. A few fans are visible emerging from the araneiforms. http://photojournal.jpl.nasa.gov/catalog/PIA18892

  1. Force of an Actin Spring

    PubMed Central

    Shin, Jennifer H.; Tam, Barney K.; Brau, Ricardo R.; Lang, Matthew J.; Mahadevan, L.; Matsudaira, Paul

    2007-01-01

    Cellular movements are produced by forces. Typically, cytoskeletal proteins such as microtubules and actin filaments generate forces via polymerization or in conjunction with molecular motors. However, the fertilization of a Limulus polyphemus egg involves a third type of actin-based cellular engine—a biological spring. During the acrosome reaction, a 60-μm long coiled and twisted bundle of actin filaments straightens and extends from a sperm cell, penetrating the vitelline layer surrounding the egg. A subtle overtwist of 0.2°/subunit underlies the mechanochemical basis for the extension of this actin spring. Upon calcium activation, this conformational strain energy is converted to mechanical work, generating the force required to extend the bundle through the vitelline layer. In this article, we stall the extension of the acrosome bundle in agarose gels of different concentrations. From the stall forces, we estimate a maximum force of 2 nN and a puncturing pressure of 1.6 MPa. We show the maximum force of extension is three times larger than the force required to puncture the vitelline layer. Thus, the elastic strain energy stored in the acrosome bundle is more than sufficient to power the acrosome reaction through the egg envelope. PMID:17351007

  2. Hot Meetings

    NASA Technical Reports Server (NTRS)

    Chiu, Mary

    2002-01-01

    A colleague walked by my office one time as I was conducting a meeting. There were about five or six members of my team present. The colleague, a man who had been with our institution (The Johns Hopkins Applied Physics Lab, a.k.a. APL) for many years, could not help eavesdropping. He said later it sounded like we we re having a raucous argument, and he wondered whether he should stand by the door in case things got out of hand and someone threw a punch. Our Advanced Composition Explorer (ACE) team was a hot group, to invoke the language that is fashionable today, although we never thought of ourselves in those terms. It was just our modus operandi. The tenor of the discussion got loud and volatile at times, but I prefer to think of it as animated, robust, or just plain collaborative. Mary Chiu and her "hot" team from the Johns Hopkins Applied Physics Laboratory built the Advanced Composition Explorer spacecraft for NASA. Instruments on the spacecraft continue to collect data that inform us about what's happening on our most important star, the Sun.

  3. Thermal springs in the United States

    USGS Publications Warehouse

    Stearns, Norah D.; Stearns, Harold T.; Waring, Gerald A.

    1937-01-01

    The earliest extensive studies of thermal springs in the United States were made by physicians. In 1831 Dr. John Bell issued a book entitled "Baths and Mineral Waters" in which he listed 21 spring localities. In the edition of his work published in 1855 the number was increased to 181. The earliest report on a geologic study of thermal springs was that of W. B, Rogers in 1840 on the thermal springs of Virginia. In 1875 G. K. Gilbert published a map and table showing thermal springs in the United States and pointed out that they are present chiefly in the mountainous areas of folded and faulted rocks. Early geologic study of them was principally inspired by the information which they afford at a few places on the deposition of minerals. The relation of hot springs to volcanic action has been studied in the Yellowstone National Park and near Lassen Peak in California. Studies in recent years have been concerned with the source of the water as well as of its heat.All the notable thermal springs in the eastern United States are in the Appalachian Highlands, principally in the region of folded rocks. The Atlantic Coastal Plain contains no appreciably warm springs. In Florida there are large springs whose water rises from a depth of a few hundred feet and is about 5° above the mean annual temperature, but they are not usually classed as thermal.The only warm springs in the great Interior Plains region are at and near Hot Springs, S. Dak., in the vicinity of the Black Hills uplift of crystalline rocks. In the Interior Highlands thermal springs occur only in the Ozark region, the largest group being at Hot Springs, Ark.The Rocky Mountain System includes the Yellowstone National Park, with its world-famous hot springs and geysers (see pis. 7,12), and there are many other hot springs within this great mountainous region. In the Intermontane areas of great lava plains and faulted lava mountains in Utah, Nevada, southern Idaho, and eastern Oregon there are many hot springs

  4. Shape memory alloy resetable spring lift for pedestrian protection

    NASA Astrophysics Data System (ADS)

    Barnes, Brian M.; Brei, Diann E.; Luntz, Jonathan E.; Strom, Kenneth; Browne, Alan L.; Johnson, Nancy

    2008-03-01

    Pedestrian protection has become an increasingly important aspect of automotive safety with new regulations taking effect around the world. Because it is increasingly difficult to meet these new regulations with traditional passive approaches, active lifts are being explored that increase the "crush zone" between the hood and rigid under-hood components as a means of mitigating the consequences of an impact with a non-occupant. Active lifts, however, are technically challenging because of the simultaneously high forces, stroke and quick timing resulting in most of the current devices being single use. This paper introduces the SMArt (Shape Memory Alloy ReseTable) Spring Lift, an automatically resetable and fully reusable device, which couples conventional standard compression springs to store the energy required for a hood lift, with Shape Memory Alloys actuators to achieve both an ultra high speed release of the spring and automatic reset of the system for multiple uses. Each of the four SMArt Device subsystems, lift, release, lower and reset/dissipate, are individually described. Two identical complete prototypes were fabricated and mounted at the rear corners of the hood, incorporated within a full-scale vehicle testbed at the SMARTT (Smart Material Advanced Research and Technology Transfer) lab at University of Michigan. Full operational cycle testing of a stationary vehicle in a laboratory setting confirms the ultrafast latch release, controlled lift profile, gravity lower to reposition the hood, and spring recompression via the ratchet engine successfully rearming the device for repeat cycles. While this is only a laboratory demonstration and extensive testing and development would be required for transition to a fielded product, this study does indicate that the SMArt Lift has promise as an alternative approach to pedestrian protection.

  5. Spring in Inca City IV

    NASA Image and Video Library

    2014-11-13

    At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens, as seen in this image acquired by NASA Mars Reconnaissance Orbiter. On the ridge at the top of the image fans have lengthened and now look more gray than the blotches on the araneiforms. At the bottom of the image they are distinctly blue in color. Two theories have been suggested: perhaps fine particles sink into the seasonal layer of ice so they no longer appear dark. Or, maybe the gas that is released from under the ice condenses and falls to the surface as a bright fresh layer of frost. It is quite likely that both of these theories are correct. http://photojournal.jpl.nasa.gov/catalog/PIA18895

  6. Thermal springs in Lake Baikal

    USGS Publications Warehouse

    Shanks, Wayne C.; Callender, E.

    1992-01-01

    The ??18O values of pore wqters range from -15.2??? to -16.7???, and ??D values range from -119??? to -126??? (both isotopes determined relative to standard mean ocean water [SMOW]). Bottom water in Lake Baikal has a ??18O value of -5.6??? and a ??D value of -120???. Pore waters in the vent area are significantly enriched in Mg, K, Ca, and especially Na and have the lowest ??D and ??18O values; these pore waters are isotopically and chemically distinct from pore waters in other, more typical parts of the lake. The pore-water isotopic data fall on a local meteoric water line, and covariations in water isotopes and chemistry are not consistent with evaporation or hydrothermal water-rock interaction. The thermal springs represent discharging meteoric waters that have been gently heated during subsurface circulation and are largely unaltered isotopically. Chemical variations are most likely due to dissolution of subsurface evaporites. -from Authors

  7. Work Term Assignment Spring 2017

    NASA Technical Reports Server (NTRS)

    Sico, Mallory

    2017-01-01

    My tour in the Engineering Robotics directorate exceeded my expectations. I learned lessons about Creo, manufacturing and assembly, collaboration, and troubleshooting. During my first tour, last spring, I used Creo on a smaller project, but had limited experience with it before starting in the Dynamic Systems Test branch this spring. I gained valuable experience learning assembly design, sheet metal design and designing with intent for manufacturing and assembly. These skills came from working both on the hatch and the floor. I also learned to understand the intent of other designers on models I worked with. While redesigning the floor, I was modifying an existing part and worked to understand what the previous designer had done to make it fit with the new model. Through working with the machine shop and in the mock-up, I learned much more about manufacturing and assembly. I used a Dremel, rivet gun, belt sander, and countersink for the first time. Through taking multiple safety training for different machine shops, I learned new machine shop safety skills specific to each one. This semester also gave me new collaborative opportunities. I collaborated with engineers within my branch as well as with Human Factors and the building 10 machine shop. This experience helped me learn how to design for functionality and assembly, not only for what would be easiest in my designs. In addition to these experiences, I learned many lessons in troubleshooting. I was the first person in my office to use a Windows 10 computer. This caused unexpected issues with NASA services and programs, such as the Digital Data Management Server (DDMS). Because of this, I gained experience finding solutions to lockout and freeze issues as well as Creo specific settings. These will be useful skills to have in the future and will be implemented in future rotations. This co-op tour has motivated me more to finish my degree and pursue my academic goals. I intend to take a machining Career Gateway

  8. Dynamics of an actin spring

    NASA Astrophysics Data System (ADS)

    Riera, Christophe; Mahadevan, L.; Shin, Jennifer; Matsudaira, Paul

    2003-03-01

    The acrosome of the sperm of the horseshoe crab (Limulus Polyphemus) is an unusual actin based system that shows a spectacular dynamical transition in the presence of Ca++ that is present in abundance in the neighborhood of the egg. During this process, the bundle, which is initially bent and twisted uncoils and becomes straight in a matter of a few seconds. Based on microstructural data, we propose a model for the dynamics of uncoiling that is best represented by a triple-well potential corresponding to the different structural arrangements of the supertwisted filaments. Each of the false, true and coiled states corresponds to a local minimum of the energy, with the true state being the one with the lowest energy. Using an evolution equation derived by balancing torques, we investigate the nucleation and propagation of the phase transition and compare the results with those of experiments. Our model quantifies the hypothesis that the acrosomal bundle behaves like a mechano-chemical spring.

  9. The annual ASCI meeting: does nostalgia have a future?

    PubMed

    Lefkowitz, Robert J

    2008-04-01

    For many academic physician-scientists, the yearly Tri-Societies meeting of the ASCI, AAP, and AFCR during the 1960s, '70s, and '80s was an annual rite of spring and the focal point of the academic year. In this brief essay, I set down some miscellaneous recollections of these meetings and some thoughts about why they were of such central importance in the careers of those of my generation.

  10. The annual ASCI meeting: does nostalgia have a future?

    PubMed Central

    Lefkowitz, Robert J.

    2008-01-01

    For many academic physician-scientists, the yearly Tri-Societies meeting of the ASCI, AAP, and AFCR during the 1960s, ’70s, and ’80s was an annual rite of spring and the focal point of the academic year. In this brief essay, I set down some miscellaneous recollections of these meetings and some thoughts about why they were of such central importance in the careers of those of my generation. PMID:18382732

  11. Second memorandum on the flow of Aqua Caliente Spring after road construction at Palm Springs, California

    USGS Publications Warehouse

    Poland, J.F.; Dutcher, L.C.

    1953-01-01

    This memorandum was prepared at the request of Henry Harris, Acting Area Director, Bureau of Indian Affairs, Sacramento, Calif., to report on recent conditions at the Agua Caliente Spring, Palm Springs, Calif., and to suggest further possibilities for restoring the spring discharge to its pre-road-construction condition.

  12. Modeling and Evaluation of Canted Coil Springs as High Temperature Seal Preloading Devices

    NASA Technical Reports Server (NTRS)

    Oswald, Jay J.; Mullen, Robert L.; Dunlap, Patrick H., Jr.; Steinetz, Bruce M.

    2004-01-01

    Future reusable launch vehicles will require advanced structural seals. This includes propulsion seals along edges and hinge lines in hypersonic engines, and control surface seals for movable flaps and elevons on proposed reentry vehicles. Seals must remain in sealing engagement with opposing surfaces, for multiple missions, even though the seal gap may be opening and closing due to thermal and structural loads. To meet this requirement either the seals themselves must be resilient or there must be a resilient structural element behind the seals. Case Western Reserve University is working with NASA s Glenn Research Center to develop more resilient high temperature seal components and preloading devices. Results are presented for a finite element analysis of a canted coil spring that is being considered as a high temperature seal preloading device. This type of spring is a leading candidate due to its ability to provide nearly constant force over a large deflection. The finite element analyses were verified by comparing them to experimental results of canted coil springs of three different stiffnesses, measured at Glenn Research Center. Once validated the parameterized model was combined with a scripting algorithm to assess the effects of key spring design variables (wire diameter, coils per inch, cant amplitude, eccentricity, and spring width) on spring stiffness and maximum Von Mises stress to aid in subsequent design.

  13. 75 FR 80455 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-22

    ...; ] ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance Board (Access Board) plans to hold its regular committee and Board meetings...

  14. Nonlinear Vibration of a Magnetic Spring

    ERIC Educational Resources Information Center

    Zhong, Juhua; Cheng, Zhongqi; Ge, Ziming; Zhang, Yuelan; Lu, Wenqiang; Song, Feng; Li, Chuanyong

    2012-01-01

    To demonstrate the different vibration characteristics of a magnetic spring compared with those of a metal one, a magnetic spring apparatus was constructed from a pair of circular magnets of the same size with an inside diameter of 2.07 cm and an outside diameter of 4.50 cm. To keep the upper magnet in a suspension state, the two magnets were…

  15. 1988 Hanford riverbank springs characterization report

    SciTech Connect

    Dirkes, R.L.

    1990-12-01

    This reports presents the results of a special study undertaken to characterize the riverbank springs (i.e., ground-water seepage) entering the Columbia River along the Hanford Site. Radiological and nonradiological analyses were performed. River water samples were also analyzed from upstream and downstream of the Site as well as from the immediate vicinity of the springs. In addition, irrigation return water and spring water entering the river along the shoreline opposite Hanford were analyzed. Hanford-origin contaminants were detected in spring water entering the Columbia River along the Hanford Site. The type and concentrations of contaminants in the spring water were similar to those known to exist in the ground water near the river. The location and extent of the contaminated discharges compared favorably with recent ground-water reports and predictions. Spring discharge volumes remain very small relative to the flow of the Columbia. Downstream river sampling demonstrates the impact of ground-water discharges to be minimal, and negligible in most cases. Radionuclide concentrations were below US Department of Energy Derived Concentration Guides (DCGs) with the exception {sup 90}Sr near the 100-N Area. Tritium, while below the DCG, was detected at concentrations above the US Environmental Protection Agency drinking water standards in several springs. All other radionuclide concentrations were below drinking water standards. Nonradiological contaminants were generally undetectable in the spring water. River water contaminant concentrations, outside of the immediate discharge zones, were below drinking water standards in all cases. 19 refs., 5 figs., 12 tabs.

  16. Spring Flowers: Harvest of a Sensitive Eye

    ERIC Educational Resources Information Center

    Clark, Eloise; Levin, Ted

    1978-01-01

    Defining and describing a number of spring flowers, this article includes illustrations and explanations that demonstrate "art and science are born of the same parents". The flowers discussed are skunk cabbage, bellwort, spring beauty, jack-in-the-pulpit, Solomon's seal, wild geranium, showy orchids, moccasin flower, bluets, apple, and Indian…

  17. Manufacturing Industry, Industry Study, Spring 2009

    DTIC Science & Technology

    2009-01-01

    Spring 2009 Industry Study Final Report Manufacturing Industry ...The Industrial College of the Armed Forces National Defense University Fort McNair, Washington, D.C. 20319-5062 Report Documentation Page Form...COVERED 00-00-2009 to 00-00-2009 4. TITLE AND SUBTITLE Spring 2009. Industry Study. Manufacturing Industry 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c

  18. Stabilising springs for fixed lingual retainer.

    PubMed

    Karthikeyan, M K; Ramachandraprabhakar; Saravanan, R; Rajvikram, N; Kuppuchamy

    2013-11-01

    Most treated malocclusion needs fixed lingual retention. To stabilise fixed lingual retainer in the exact location needs proper stabilisation. Proper stabilization requires a holding spring. This Stabilising Spring should be easy to fabricate and help the clinician to stabilise the retainer quickly and save the chair side time. More over it should not irritate the mucosa and should be easy to insert and remove.

  19. Spring Flowers: Harvest of a Sensitive Eye

    ERIC Educational Resources Information Center

    Clark, Eloise; Levin, Ted

    1978-01-01

    Defining and describing a number of spring flowers, this article includes illustrations and explanations that demonstrate "art and science are born of the same parents". The flowers discussed are skunk cabbage, bellwort, spring beauty, jack-in-the-pulpit, Solomon's seal, wild geranium, showy orchids, moccasin flower, bluets, apple, and Indian…

  20. Nonlinear Vibration of a Magnetic Spring

    ERIC Educational Resources Information Center

    Zhong, Juhua; Cheng, Zhongqi; Ge, Ziming; Zhang, Yuelan; Lu, Wenqiang; Song, Feng; Li, Chuanyong

    2012-01-01

    To demonstrate the different vibration characteristics of a magnetic spring compared with those of a metal one, a magnetic spring apparatus was constructed from a pair of circular magnets of the same size with an inside diameter of 2.07 cm and an outside diameter of 4.50 cm. To keep the upper magnet in a suspension state, the two magnets were…

  1. Rooster Springs Elementary Teams Up for Success

    ERIC Educational Resources Information Center

    Edwards, Jennifer

    2012-01-01

    For many schools, membership in PTA can become "expected," instead of being a positive, fun opportunity to involve parents and support students and teachers. With more than 800 students each year, Rooster Springs Elementary PTA (RSE PTA) in Dripping Springs, Texas, never worried about membership recruitment. The PTA often assumed that…

  2. Spring control of wire harness loops

    NASA Technical Reports Server (NTRS)

    Curcio, P. J.

    1979-01-01

    Negator spring control guides wire harness between movable and fixed structure. It prevents electrical wire harness loop from jamming or being severed as wire moves in response to changes in position of aircraft rudder. Spring-loaded coiled cable controls wire loop regardless of rudder movement.

  3. Joystick With Cable Springs Offers Better Feel

    NASA Technical Reports Server (NTRS)

    Kerley, James; Ecklund, Wayne

    1992-01-01

    Improved joystick allows motion in 6 degrees of freedom, biased toward central position and orientation by 16 segments of cable serving as springs. Improvement in feel and control results from nonlinear compliance of cable-spring assembly. Nonlinear variations accommodate natural reactions of hand and brain. Operator functions as part of feedback control loop. More comfortable, increases ability to exert control and reduces fatigue.

  4. Battery Berry Observation Station, detail, frame structure meeting older masonry ...

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

    Battery Berry Observation Station, detail, frame structure meeting older masonry building on west side of structure; view east - Fort McKinley, Battery Berry Observation Station, North side of Wood Side Drive approximately 80 feet east of Spring Cove Lane, Great Diamond Island, Portland, Cumberland County, ME

  5. Rocky Mountain Carbonate Spring Deposit development

    NASA Astrophysics Data System (ADS)

    Rainey, Dustin Kyle

    Relict Holocene carbonate spring deposits containing diverse biotic and abiotic depositional textures are present at Fall Creek cold sulphur springs, Alberta, Fairmont Hot Springs, British Columbia, and Hot Creek cold springs, British Columbia. The relict deposits are formed mainly of low-magnesium crystalline calcite contained in laterally continuous strata. Paleo-flow regimes were characterized by extensive sheet flow that increased the surface area of spring water exposed to the atmosphere. Calcite precipitated inorganically from spring water that attained CaCO3 supersaturation through agitation-induced CO2 degassing that was facilitated by elevated flow rates and a large surface area as spring water flowed down-slope. Thus, the deposits contain only minor amounts of detrital, mechanically deposited, and biogenic carbonate. Evaporation was only a minor contributor to CaCO3 supersaturation, mainly in quiescent environments. Photosynthetic CO2 removal did not measurably contribute to CaCO3 supersaturation. Calcite crystals precipitated in biotic facies formed from low to moderately supersaturated spring water, whereas abiotic dendrite crystals formed rapidly from highly supersaturated spring water. Calcite passively nucleated on cyanobacteria, bryophytes and macrophytes, and was probably facilitated by cyanobacterial extracellular polymeric substances. Cyanobacterial filaments and stromatolites are integral parts of all three deposits, whereas bryophytes were restricted to the Fall Creek and Hot Creek deposits. Diagenetic microbial degradation of crystalline calcite was common to all three deposits, but recrystallization was limited to the Fall Creek deposit. The amount and location of calcite precipitation relative to the vents was controlled by the concentrations of Ca2+ and HCO3- in solution, and discharge volume fluctuations. Spring water with high [Ca2+] and [HCO 3-] precipitated large amounts of calcite proximal to the vents (e.g. Fairmont), whereas spring

  6. Database of historically documented springs and spring flow measurements in Texas

    USGS Publications Warehouse

    Heitmuller, Franklin T.; Reece, Brian D.

    2003-01-01

    Springs are naturally occurring features that convey excess ground water to the land surface; they represent a transition from ground water to surface water. Water issues through one opening, multiple openings, or numerous seeps in the rock or soil. The database of this report provides information about springs and spring flow in Texas including spring names, identification numbers, location, and, if available, water source and use. This database does not include every spring in Texas, but is limited to an aggregation of selected digital and hard-copy data of the U.S. Geological Survey (USGS), the Texas Water Development Board (TWDB), and Capitol Environmental Services.

  7. 1. Photocopy of map (from The Virginia Springs, and the ...

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

    1. Photocopy of map (from The Virginia Springs, and the Springs of the South and West by Moorman) No date 'MAP OF ROUTES AND DISTANCES TO THE VIRGINIA SPRINGS' - White Sulphur Springs, U.S. Route 60, White Sulphur Springs, Greenbrier County, WV

  8. Spring plant phenology and false springs in the conterminous US during the 21st century

    USGS Publications Warehouse

    Allstadt, Andrew J.; Vavrus, Stephen J.; Heglund, Patricia J.; Pidgeon, Anna M.; Thogmartin, Wayne E.; Radeloff, Volker C.

    2015-01-01

    The onset of spring plant growth has shifted earlier in the year over the past several decades due to rising global temperatures. Earlier spring onset may cause phenological mismatches between the availability of plant resources and dependent animals, and potentially lead to more false springs, when subsequent freezing temperatures damage new plant growth. We used the extended spring indices to project changes in spring onset, defined by leaf out and by first bloom, and predicted false springs until 2100 in the conterminous United States (US) using statistically-downscaled climate projections from the Coupled Model Intercomparison Project 5 ensemble. Averaged over our study region, the median shift in spring onset was 23 days earlier in the Representative Concentration Pathway 8.5 scenario with particularly large shifts in the Western US and the Great Plains. Spatial variation in phenology was due to the influence of short-term temperature changes around the time of spring onset versus season long accumulation of warm temperatures. False spring risk increased in the Great Plains and portions of the Midwest, but remained constant or decreased elsewhere. We conclude that global climate change may have complex and spatially variable effects on spring onset and false springs, making local predictions of change difficult.

  9. Spring plant phenology and false springs in the conterminous US during the 21st century

    NASA Astrophysics Data System (ADS)

    Allstadt, Andrew J.; Vavrus, Stephen J.; Heglund, Patricia J.; Pidgeon, Anna M.; Thogmartin, Wayne E.; Radeloff, Volker C.

    2015-10-01

    The onset of spring plant growth has shifted earlier in the year over the past several decades due to rising global temperatures. Earlier spring onset may cause phenological mismatches between the availability of plant resources and dependent animals, and potentially lead to more false springs, when subsequent freezing temperatures damage new plant growth. We used the extended spring indices to project changes in spring onset, defined by leaf out and by first bloom, and predicted false springs until 2100 in the conterminous United States (US) using statistically-downscaled climate projections from the Coupled Model Intercomparison Project 5 ensemble. Averaged over our study region, the median shift in spring onset was 23 days earlier in the Representative Concentration Pathway 8.5 scenario with particularly large shifts in the Western US and the Great Plains. Spatial variation in phenology was due to the influence of short-term temperature changes around the time of spring onset versus season-long accumulation of warm temperatures. False spring risk increased in the Great Plains and portions of the Midwest, but remained constant or decreased elsewhere. We conclude that global climate change may have complex and spatially variable effects on spring onset and false springs, making local predictions of change difficult.

  10. Cross-shaped torsional spring

    DOEpatents

    Williamson, M.M.; Pratt, G.A.

    1999-06-08

    The invention provides an elastic actuator consisting of a motor and a motor drive transmission connected at an output of the motor. An elastic element is connected in series with the motor drive transmission, and this elastic element is positioned to alone support the full weight of any load connected at an output of the actuator. A single force transducer is positioned at a point between a mount for the motor and an output of the actuator. This force transducer generates a force signal, based on deflection of the elastic element, that indicates force applied by the elastic element to an output of the actuator. An active feedback force control loop is connected between the force transducer and the motor for controlling the motor. This motor control is based on the force signal to deflect the elastic element an amount that produces a desired actuator output force. The produced output force is substantially independent of load motion. The invention also provides a torsional spring consisting of a flexible structure having at least three flat sections each connected integrally with and extending radially from a central section. Each flat section extends axially along the central section from a distal end of the central section to a proximal end of the central section. 30 figs.

  11. Cross-shaped torsional spring

    DOEpatents

    Williamson, Matthew M.; Pratt, Gill A.

    1999-06-08

    The invention provides an elastic actuator consisting of a motor and a motor drive transmission connected at an output of the motor. An elastic element is connected in series with the motor drive transmission, and this elastic element is positioned to alone support the full weight of any load connected at an output of the actuator. A single force transducer is positioned at a point between a mount for the motor and an output of the actuator. This force transducer generates a force signal, based on deflection of the elastic element, that indicates force applied by the elastic element to an output of the actuator. An active feedback force control loop is connected between the force transducer and the motor for controlling the motor. This motor control is based on the force signal to deflect the elastic element an amount that produces a desired actuator output force. The produced output force is substantially independent of load motion. The invention also provides a torsional spring consisting of a flexible structure having at least three flat sections each connected integrally with and extending radially from a central section. Each flat section extends axially along the central section from a distal end of the central section to a proximal end of the central section.

  12. Weldon Spring historical dose estimate

    SciTech Connect

    Meshkov, N.; Benioff, P.; Wang, J.; Yuan, Y.

    1986-07-01

    This study was conducted to determine the estimated radiation doses that individuals in five nearby population groups and the general population in the surrounding area may have received as a consequence of activities at a uranium processing plant in Weldon Spring, Missouri. The study is retrospective and encompasses plant operations (1957-1966), cleanup (1967-1969), and maintenance (1969-1982). The dose estimates for members of the nearby population groups are as follows. Of the three periods considered, the largest doses to the general population in the surrounding area would have occurred during the plant operations period (1957-1966). Dose estimates for the cleanup (1967-1969) and maintenance (1969-1982) periods are negligible in comparison. Based on the monitoring data, if there was a person residing continually in a dwelling 1.2 km (0.75 mi) north of the plant, this person is estimated to have received an average of about 96 mrem/yr (ranging from 50 to 160 mrem/yr) above background during plant operations, whereas the dose to a nearby resident during later years is estimated to have been about 0.4 mrem/yr during cleanup and about 0.2 mrem/yr during the maintenance period. These values may be compared with the background dose in Missouri of 120 mrem/yr.

  13. 76 FR 66912 - Marine Protected Areas Federal Advisory Committee; Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-28

    ... National Oceanic and Atmospheric Administration (NOAA) Marine Protected Areas Federal Advisory Committee... meeting. SUMMARY: Notice is hereby given of a meeting of the Marine Protected Areas Federal Advisory... FAC, National Marine Protected Areas Center, 1305 East West Highway, Silver Spring, Maryland 20910...

  14. 75 FR 6643 - U.S. Air Force Academy Board of Visitors; Notice of Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-10

    ... Department of the Air Force U.S. Air Force Academy Board of Visitors; Notice of Meeting AGENCY: U.S. Air Force Academy Board of Visitors. ACTION: Meeting notice. SUMMARY: Pursuant to 10 USC 9355, the US Air... the United States Air Force Academy in Colorado Springs, CO on 26-27 February 2010. The...

  15. 76 FR 5330 - Notice of Lincoln County Resource Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-31

    ... Forest Service Notice of Lincoln County Resource Advisory Committee Meeting AGENCY: Forest Service, USDA... the spring field trip. If the meeting date or location is changed, notice will be posted in the local newspapers, including the Daily Interlake based in Kalispell, Montana. Dated: January 20, 2011....

  16. The source, discharge, and chemical characteristics of water from Agua Caliente Spring, Palm Springs, California

    USGS Publications Warehouse

    : Martin, Peter; Contributors: Brandt, Justin; Catchings, Rufus D.; Christensen, Allen H.; Flint, Alan L.; Gandhok, Gini; Goldman, Mark R.; Halford, Keith J.; Langenheim, V.E.; Martin, Peter; Rymer, Michael J.; Schroeder, Roy A.; Smith, Gregory A.; Sneed, Michelle

    2011-01-01

    Numerical models of fluid and temperature flow were developed for the Agua Caliente Spring to (1) test the validity of the conceptual model that the Agua Caliente Spring enters the valley-fill deposits from fractures in the underlying basement complex and rises through more than 800 feet of valley-fill deposits by way of a washed-sand conduit and surrounding low-permeability deposits (spring chimney) of its own making, (2) evaluate whether water-level declines in the regional aquifer will influence the temperature of discharging water, and (3) determine the source of thermal water in the perched aquifer. A radial-flow model was used to test the conceptual model and the effect of water-level declines. The observed spring discharge and temperature could be simulated if the vertical hydraulic conductivity of the spring orifice was about 200 feet per day and the horizontal hydraulic conductivity of the orifice (spring chimney) was about 0.00002 feet per day. The simulated vertical hydraulic conductivity is within the range of values reported for sand; however, the low value simulated for the horizontal hydraulic conductivity suggests that the spring chimney is cemented with increasing depth. Chemical data collected for this study indicate that the water at Agua Caliente Spring is at saturation with respect to both calcite and chalcedony, which provides a possible mechanism for cementation of the spring chimney. A simulated decline of about 100 feet in the regional aquifer had no effect on the simulated discharge of Agua Caliente Spring and resulted in a slight increase in the temperature of the spring discharge. Results from the radial-flow- and three-dimensional models of the Agua Caliente Spring area demonstrate that the distribution and temperature of thermal water in the perched water table can be explained by flow from a secondary shallow-subsurface spring orifice of the Agua Caliente Spring not contained by the steel collector tank, not by leakage from the

  17. Spring/dimple instrument tube restraint

    DOEpatents

    DeMario, E.E.; Lawson, C.N.

    1993-11-23

    A nuclear fuel assembly for a pressurized water nuclear reactor has a spring and dimple structure formed in a non-radioactive insert tube placed in the top of a sensor receiving instrumentation tube thimble disposed in the fuel assembly and attached at a top nozzle, a bottom nozzle, and intermediate grids. The instrumentation tube thimble is open at the top, where the sensor or its connection extends through the cooling water for coupling to a sensor signal processor. The spring and dimple insert tube is mounted within the instrumentation tube thimble and extends downwardly adjacent the top. The springs and dimples restrain the sensor and its connections against lateral displacement causing impact with the instrumentation tube thimble due to the strong axial flow of cooling water. The instrumentation tube has a stainless steel outer sleeve and a zirconium alloy inner sleeve below the insert tube adjacent the top. The insert tube is relatively non-radioactivated inconel alloy. The opposed springs and dimples are formed on diametrically opposite inner walls of the insert tube, the springs being formed as spaced axial cuts in the insert tube, with a web of the insert tube between the cuts bowed radially inwardly for forming the spring, and the dimples being formed as radially inward protrusions opposed to the springs. 7 figures.

  18. Spring/dimple instrument tube restraint

    DOEpatents

    DeMario, Edmund E.; Lawson, Charles N.

    1993-01-01

    A nuclear fuel assembly for a pressurized water nuclear reactor has a spring and dimple structure formed in a non-radioactive insert tube placed in the top of a sensor receiving instrumentation tube thimble disposed in the fuel assembly and attached at a top nozzle, a bottom nozzle, and intermediate grids. The instrumentation tube thimble is open at the top, where the sensor or its connection extends through the cooling water for coupling to a sensor signal processor. The spring and dimple insert tube is mounted within the instrumentation tube thimble and extends downwardly adjacent the top. The springs and dimples restrain the sensor and its connections against lateral displacement causing impact with the instrumentation tube thimble due to the strong axial flow of cooling water. The instrumentation tube has a stainless steel outer sleeve and a zirconium alloy inner sleeve below the insert tube adjacent the top. The insert tube is relatively non-radioactivated inconel alloy. The opposed springs and dimples are formed on diametrically opposite inner walls of the insert tube, the springs being formed as spaced axial cuts in the insert tube, with a web of the insert tube between the cuts bowed radially inwardly for forming the spring, and the dimples being formed as radially inward protrusions opposed to the springs.

  19. Fabrication and experimentation of FRP helical spring

    NASA Astrophysics Data System (ADS)

    Ekanthappa, J.; Shiva Shankar, G. S.; Amith, B. M.; Gagan, M.

    2016-09-01

    In present scenario, the automobile industry sector is showing increased interest in reducing the unsprung weight of the automobile & hence increasing the fuel Efficiency. One of the feasible sub systems of a vehicle where weight reduction may be attempted is vehicle- suspension system. Usage of composite material is a proven way to lower the component weight without any compromise in strength. The composite materials are having high specific strength, more elastic strain energy storage capacity in comparison with those of steel. Therefore, helical coil spring made of steel is replaceable by composite cylindrical helical coil spring. This research aims at preparing a re-usable mandrel (mould) of Mild steel, developing a setup for fabrication, fabrication of FRP helical spring using continuous glass fibers and Epoxy Resin (Polymer). Experimentation has been conducted on fabricated FRP helical spring to determine its strength parameters & for failure analysis. It is found that spring stiffness (K) of Glass/Epoxy helical-spring is greater than steel-coil spring with reduced weight.

  20. Thermal springs of Malaysia and their potentialdevelopment

    NASA Astrophysics Data System (ADS)

    Rahim Samsudin, Abdul; Hamzah, Umar; Rahman, Rakmi Ab.; Siwar, Chamhuri; Fauzi Mohd. Jani, Mohd; Othman, Redzuan

    The study on the potential development of hot springs for the tourism industry in Malaysiawas conducted. Out of the 40 hot springs covered, the study identified 9 hot springs having a high potential for development, 14 having medium potential and the remaining 17 having low or least potential for development. This conclusion was arrived at after considering the technical and economic feasibility of the various hot springs. Technical feasibility criteria includes geological factors, water quality, temperature and flow rate. The economic feasibility criteria considers measures such as accessibility, current and market potentials in terms of visitors, surrounding attractions and existing inventory and facilities available. A geological input indicates that high potential hot springs are located close to or within the granite body and associated with major permeable fault zones. They normally occur at low elevation adjacent to topographic highs. High potential hot springs are also characterised by high water temperature, substantial flowrate and very good water quality which is important for water-body contact activities such as soaking. Economic criteria for high potential hot springs are associated with good accessibility, good market, good surrounding attractions like rural and village setting and well developed facilities and infrastructures.

  1. Lengthening Spring Season in Southwestern North America

    NASA Astrophysics Data System (ADS)

    Gutzler, D. S.

    2014-12-01

    Climate is changing rapidly in southwestern North America during the Spring season, a critically important transition season in terms of hydrology, ecosystem dynamics, and water resource management. Major rivers are snow-fed in mountainous headwaters but then flow through a monsoonal region with a Summer precipitation maximum; Spring is the dry season in between snowmelt and monsoon onset and is the principal wildfire season in the Southwest. Evaporation during the warm, dry Spring represents a major hydrologic loss in the surface water budget and is a principal cause of projections of significant decreases in post-snowmelt streamflow, during the first half of the growing season when demand for surface water for irrigated agriculture is highest. As temperatures increase, snowpack is expected to decrease and melt earlier, leading to a smaller and earlier peak in snowmelt runoff. Recent climate model projections suggest that monsoon onset should occur later in the year, delaying the summer rainy season. Each of these effects contributes to projections of a lengthening Spring season, at both the beginning and end of Spring. A longer, warmer Spring season is associated with significant surface drying and increased wildfire risk in the 21st Century across the Southwest. So far changes are observed at the beginning of spring in terms of temperature (increasing) and snowpack (decreasing). Detection of other changes, including metrics of the end of spring, has not been easy, in part due to the huge natural variability of precipitation that affects hydrologic variables in conjunction with temperature. This presentation describes efforts to diagnose and document observed changes in the transitions into and out of the Spring dry season in the Southwest, in variables such as temperature, snowmelt date, timing and magnitude of streamflow, and monsoon onset date.

  2. Microbial Source Tracking in Adjacent Karst Springs.

    PubMed

    Ohad, Shoshanit; Vaizel-Ohayon, Dalit; Rom, Meir; Guttman, Joseph; Berger, Diego; Kravitz, Valeria; Pilo, Shlomo; Huberman, Zohar; Kashi, Yechezkel; Rorman, Efrat

    2015-08-01

    Modern man-made environments, including urban, agricultural, and industrial environments, have complex ecological interactions among themselves and with the natural surroundings. Microbial source tracking (MST) offers advanced tools to resolve the host source of fecal contamination beyond indicator monitoring. This study was intended to assess karst spring susceptibilities to different fecal sources using MST quantitative PCR (qPCR) assays targeting human, bovine, and swine markers. It involved a dual-time monitoring frame: (i) monthly throughout the calendar year and (ii) daily during a rainfall event. Data integration was taken from both monthly and daily MST profile monitoring and improved identification of spring susceptibility to host fecal contamination; three springs located in close geographic proximity revealed different MST profiles. The Giach spring showed moderate fluctuations of MST marker quantities amid wet and dry samplings, while the Zuf spring had the highest rise of the GenBac3 marker during the wet event, which was mirrored in other markers as well. The revelation of human fecal contamination during the dry season not connected to incidents of raining leachates suggests a continuous and direct exposure to septic systems. Pigpens were identified in the watersheds of Zuf, Shefa, and Giach springs and on the border of the Gaaton spring watershed. Their impact was correlated with partial detection of the Pig-2-Bac marker in Gaaton spring, which was lower than detection levels in all three of the other springs. Ruminant and swine markers were detected intermittently, and their contamination potential during the wet samplings was exposed. These results emphasized the importance of sampling design to utilize the MST approach to delineate subtleties of fecal contamination in the environment.

  3. Microbial Source Tracking in Adjacent Karst Springs

    PubMed Central

    Vaizel-Ohayon, Dalit; Rom, Meir; Guttman, Joseph; Berger, Diego; Kravitz, Valeria; Pilo, Shlomo; Huberman, Zohar; Kashi, Yechezkel; Rorman, Efrat

    2015-01-01

    Modern man-made environments, including urban, agricultural, and industrial environments, have complex ecological interactions among themselves and with the natural surroundings. Microbial source tracking (MST) offers advanced tools to resolve the host source of fecal contamination beyond indicator monitoring. This study was intended to assess karst spring susceptibilities to different fecal sources using MST quantitative PCR (qPCR) assays targeting human, bovine, and swine markers. It involved a dual-time monitoring frame: (i) monthly throughout the calendar year and (ii) daily during a rainfall event. Data integration was taken from both monthly and daily MST profile monitoring and improved identification of spring susceptibility to host fecal contamination; three springs located in close geographic proximity revealed different MST profiles. The Giach spring showed moderate fluctuations of MST marker quantities amid wet and dry samplings, while the Zuf spring had the highest rise of the GenBac3 marker during the wet event, which was mirrored in other markers as well. The revelation of human fecal contamination during the dry season not connected to incidents of raining leachates suggests a continuous and direct exposure to septic systems. Pigpens were identified in the watersheds of Zuf, Shefa, and Giach springs and on the border of the Gaaton spring watershed. Their impact was correlated with partial detection of the Pig-2-Bac marker in Gaaton spring, which was lower than detection levels in all three of the other springs. Ruminant and swine markers were detected intermittently, and their contamination potential during the wet samplings was exposed. These results emphasized the importance of sampling design to utilize the MST approach to delineate subtleties of fecal contamination in the environment. PMID:26002893

  4. Call a Meeting!

    ERIC Educational Resources Information Center

    Gonsalves, Bronte B.

    1988-01-01

    Outlines appropriate content for meetings between parents and teachers of young children. Argues that effective meetings foster parent education, communication and ongoing parent support. Identifies objectives for the initial meeting during the application and registration process, for parent education meetings, and for parent conferences.…

  5. 2. SHOWING (LEFT TO RIGHT) CHAPEL, STORE BUILDING, SPRING HOUSE, ...

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

    2. SHOWING (LEFT TO RIGHT) CHAPEL, STORE BUILDING, SPRING HOUSE, AND BATH HOUSE, SOUTHEAST FACADES (4 x 5 negative; 5 x 7 print) - Salt Sulpher Springs, U.S. Route 219, Salt Sulphur Springs, Monroe County, WV

  6. 1. photocopy of postcard (from Glenwood Springs Lodge & Pool, ...

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

    1. photocopy of postcard (from Glenwood Springs Lodge & Pool, Inc., Date unknown) Photographer unknown, Date unknown GENERAL VIEW OF LODGE, HOT SPRINGS POOL AND ENVIRONS - Hot Springs Lodge, Garfield County, CO

  7. General perspective view of the Spring Creek Bridge, view looking ...

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

    General perspective view of the Spring Creek Bridge, view looking northwest. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  8. Approach view of the Spring Creek Bridge, view looking south. ...

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

    Approach view of the Spring Creek Bridge, view looking south. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  9. Topographic view of the Spring Creek Bridge and Collier State ...

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

    Topographic view of the Spring Creek Bridge and Collier State Park, view looking east. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  10. Approach view of the Spring Creek Bridge, view looking north. ...

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

    Approach view of the Spring Creek Bridge, view looking north. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  11. General perspective view of the Spring Creek Bridge, view looking ...

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

    General perspective view of the Spring Creek Bridge, view looking southeast. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  12. Elevation view of the Spring Creek Bridge, view looking east. ...

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

    Elevation view of the Spring Creek Bridge, view looking east. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  13. General perspective view of the Spring Creek Bridge, view looking ...

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

    General perspective view of the Spring Creek Bridge, view looking east. - Spring Creek Bridge, Spanning Spring Creek at Milepoint 253.98 on Oregon to California Highway (US Route 97), Chiloquin, Klamath County, OR

  14. New package for Belleville spring permits rate change, easy disassembly

    NASA Technical Reports Server (NTRS)

    Mac Glashan, W. F.

    1964-01-01

    A spring package, with grooves to hold the spring washers at the inner and outer edges, reduces hysteresis to a minimum. Three-segment retainers permit easy disassembly so that the spring rate can be changed.

  15. Summary of Needs and Opportunities from the 2011 Residential Energy Efficiency Stakeholders Meeting: Atlanta, Georgia -- March 16-18, 2011

    SciTech Connect

    Not Available

    2011-05-01

    This summary report outlines needs and issues for increasing energy efficiency of new and existing U.S homes, as identified at the U.S Department of Energy Building America program Spring 2011 stakeholder meeting in Atlanta, Georgia.

  16. Heat Setting Procedures for Helical Coiled Springs

    DTIC Science & Technology

    1976-12-01

    Springs, M -aw-Hill Book Company, Inc., New York, New York, 1963. 1 - 1i) Music Wire, QQ-9-JM7 •r ’Wire diameter = 0.043 iALCh Stress relieve: Heat at... music wire and chrome vanadium materials c) 100,000 psi corresponds to 1.580 inches b) 150,0O0 psi corresponds to 1.020 inches For stainless steel...frequency which would produce spring set with the minimun amount of sprirg breakage. It was determined that the music wire springs should be cycled

  17. Inhalant allergens in Palm Springs, California.

    PubMed

    STEPHENS, H

    1954-06-01

    Although Palm Springs, California, offers a pleasant desert climate that is often advantageous in treatment of respiratory allergies, physicians should be made aware in referring their patients that definite pollen factors must be taken into consideration in recommending a visit to Palm Springs, and should try to determine the compatibility of their patient's allergic sensitivity pattern and the particular seasonal incidence of pollen concentration in Palm Springs. It is believed that the most important pollens there are those of Bermuda grass, olive tree, mesquite, dicoria, false ragweed, scales, and hymenoclea salsola. A favorable climate alone does not permit a patient to disregard good allergic management.

  18. INHALANT ALLERGENS IN PALM SPRINGS, CALIFORNIA

    PubMed Central

    Stephens, Hugh

    1954-01-01

    Although Palm Springs, California, offers a pleasant desert climate that is often advantageous in treatment of respiratory allergies, physicians should be made aware in referring their patients that definite pollen factors must be taken into consideration in recommending a visit to Palm Springs, and should try to determine the compatibility of their patient's allergic sensitivity pattern and the particular seasonal incidence of pollen concentration in Palm Springs. It is believed that the most important pollens there are those of Bermuda grass, olive tree, mesquite, dicoria, false ragweed, scales, and hymenoclea salsola. A favorable climate alone does not permit a patient to disregard good allergic management. PMID:13160819

  19. Characterizing Hot Spring Connectivity Using Aqueous Geochemistry in the River Group Springs, Yellowstone NP, Wyoming

    NASA Astrophysics Data System (ADS)

    Aunan, M. M.; Lindsey, C.; Price, A. N.; Fairley, J. P., Jr.; Larson, P. B.

    2015-12-01

    Abstract We analyzed the aqueous geochemical components of 11 springs in the River Group, Yellowstone National Park, Wyoming. For the springs sampled, we found pHs ranging from a low of ˜4.8 to a high of ˜9.6; TDS (as inferred from electrical conductivity measurements) was roughly correlated to pH, with the lowest pH spring being the most dilute (373 µS) and the highest pH spring having the second highest conductivity (1384 µS). In combination with a shallow ground temperature survey and visual observations of the relative water levels in the springs, the spring chemistries support a conceptual model of fracture-controlled fluid flow in which individual springs demonstrate a surprising level of flowpath isolation. We hypothesize that variations in flowpath permeability lead to steam-heating of low-pH springs, while nearby circumneutral springs are heated by upwelling liquid hydrothermal fluids, high in chlorid and other dissolved components. If our hypothesis is correct, it implies that vaporand liquid-dominated zones of Model III hydrothermal systems can coexist in close proximity, resulting in a complex surface expression of acid-sulfate and chloride-rich circum-neutral springs.

  20. Biogeochemistry of hypersaline springs supporting a mid-continent marine ecosystem: an analogue for martian springs?

    PubMed

    Grasby, Stephen E; Londry, Kathleen L

    2007-08-01

    Hypersaline springs that host unique mid-continent marine ecosystems were examined in central Manitoba, Canada. The springs originate from a reflux of glacial meltwater that intrudes into underlying bedrock and dissolved buried salt beds. Two spring types were distinguished based both on flow rate and geochemistry. High flow springs (greater than 10 L/s) hosted extensive marine microbial mats, which were dominated by algae but also included diverse microbes. These varied somewhat between springs as indicated by changes in profiles of fatty acid methyl esters. Culture studies confirmed the presence of sulfate-reducing bacteria in sediments at the high flow sites. In contrast, low flow springs were affected by solar evaporation, increasing salinity, and temperature. These low flow springs behaved more like closed nutrient-limited systems and did not support microbial mats. Direct comparison of the high and low flow springs revealed interesting implications for the potential to record biosignatures in the rock record. High flow springs have abundant, well-developed microbial mats, which desiccate and are cemented along the edges of the spring pools; however, the high mass flux overwhelms any geochemical signature of microbial activity. In contrast, the nutrient-limited low flow sites develop strong geochemical signatures of sulfate reduction, even in the absence of microbial mats, due to less dilution with the lower flows. Geochemical and physical evidence for life did not correlate with the abundance of microbial life but, rather, with the extent to which the biological system formed a closed ecosystem.

  1. Biogeochemistry of Hypersaline Springs Supporting a Mid-Continent Marine Ecosystem: An Analogue for Martian Springs?

    NASA Astrophysics Data System (ADS)

    Grasby, Stephen E.; Londry, Kathleen L.

    2007-08-01

    Hypersaline springs that host unique mid-continent marine ecosystems were examined in central Manitoba, Canada. The springs originate from a reflux of glacial meltwater that intrudes into underlying bedrock and dissolved buried salt beds. Two spring types were distinguished based both on flow rate and geochemistry. High flow springs (greater than 10 L/s) hosted extensive marine microbial mats, which were dominated by algae but also included diverse microbes. These varied somewhat between springs as indicated by changes in profiles of fatty acid methyl esters. Culture studies confirmed the presence of sulfate-reducing bacteria in sediments at the high flow sites. In contrast, low flow springs were affected by solar evaporation, increasing salinity, and temperature. These low flow springs behaved more like closed nutrient-limited systems and did not support microbial mats. Direct comparison of the high and low flow springs revealed interesting implications for the potential to record biosignatures in the rock record. High flow springs have abundant, well-developed microbial mats, which desiccate and are cemented along the edges of the spring pools; however, the high mass flux overwhelms any geochemical signature of microbial activity. In contrast, the nutrient-limited low flow sites develop strong geochemical signatures of sulfate reduction, even in the absence of microbial mats, due to less dilution with the lower flows. Geochemical and physical evidence for life did not correlate with the abundance of microbial life but, rather, with the extent to which the biological system formed a closed ecosystem.

  2. Process for Forming a High Temperature Single Crystal Canted Spring

    NASA Technical Reports Server (NTRS)

    DeMange, Jeffrey J (Inventor); Ritzert, Frank J (Inventor); Nathal, Michael V (Inventor); Dunlap, Patrick H (Inventor); Steinetz, Bruce M (Inventor)

    2017-01-01

    A process for forming a high temperature single crystal canted spring is provided. In one embodiment, the process includes fabricating configurations of a rapid prototype spring to fabricate a sacrificial mold pattern to create a ceramic mold and casting a canted coiled spring to form at least one canted coil spring configuration based on the ceramic mold. The high temperature single crystal canted spring is formed from a nickel-based alloy containing rhenium using the at least one coil spring configuration.

  3. Executive summary: Weldon Spring Site Environmental Report for calendar year 1992. Weldon Spring Site Remedial Action Project, Weldon Spring, Missouri

    SciTech Connect

    Not Available

    1993-06-01

    This report has been prepared to provide information about the public safety and environmental protection programs conducted by the Weldon Spring Site Remedial Action Project. The Weldon Spring site is located in southern St. Charles County, Missouri, approximately 48 km (30 mi) west of St. Louis. The site consists of two main areas, the Weldon Spring Chemical Plant and raffinate pits and the Weldon Spring Quarry. The objectives of the Site Environmental Report are to present a summary of data from the environmental monitoring program, to characterize trends and environmental conditions at the site, and to confirm compliance with environmental and health protection standards and requirements. The report also presents the status of remedial activities and the results of monitoring these activities to assess their impacts on the public and environment. The scope of the environmental monitoring program at the Weldon Spring site has changed since it was initiated. Previously, the program focused on investigations of the extent and level of contaminants in the groundwater, surface waters, buildings, and air at the site. In 1992, the level of remedial activities required monitoring for potential impacts of those activities, particularly on surface water runoff and airborne effluents. This report includes monitoring data from routine radiological and nonradiological sampling activities. These data include estimates of dose to the public from the Weldon Spring site; estimates of effluent releases; and trends in groundwater contaminant levels. Also, applicable compliance requirements, quality assurance programs, and special studies conducted in 1992 to support environmental protection programs are reviewed.

  4. PLANE SPIRAL SPRING UNDER UNIFORM ROTATION ABOUT ITS ARBOR,

    DTIC Science & Technology

    SPRINGS, *MECHANICAL ENGINEERING, ELASTIC PROPERTIES, ELASTIC PROPERTIES, HELICAL SPRINGS, ROTATION, MOMENTUM, LOADS(FORCES), DEFORMATION, GEOMETRIC FORMS, MATHEMATICAL ANALYSIS, INDUSTRIAL EQUIPMENT.

  5. Diagenetic Changes in Common Hot Spring Microfacies

    NASA Astrophysics Data System (ADS)

    Hinman, N. W.; Kendall, T. A.; MacKenzie, L. A.; Cady, S. D.

    2016-05-01

    The friable nature of silica hot spring deposits makes them susceptible to mechanical weathering. Rapid diagenesis must take place for these rocks to persist in the geologic record. The properties of two microfacies at two deposits were compared.

  6. Coastal Energy Corporation, Willow Springs, MO

    EPA Pesticide Factsheets

    notice of a proposed Administrative Penalty Assessment against Coastal Energy Corporation, located at 232 Burnham Road, Willow Springs, Missouri, for alleged violations at the facility located at or near that facility.

  7. The Nonlinear Spring and Energy Conservation.

    ERIC Educational Resources Information Center

    Sherfinski, John

    1989-01-01

    Describes an air track experiment demonstrating the transfer of mechanical energy from elastic potential to kinetic. Discusses four methods for calculating energy stored in the spring. Included are pictures, typical data, and graphs. (YP)

  8. Say Goodbye to Allergy Misery in Spring

    MedlinePlus

    ... Misery in Spring Expert offers tips for reducing pollen-related discomfort To use the sharing features on ... there is no way to avoid irritants like pollen entirely, there are simple solutions to mitigate allergic ...

  9. Welcome Spring and Still Survive Your Allergies

    MedlinePlus

    ... March 19, 2017 (HealthDay News) -- If you have seasonal allergies, the arrival of spring on Monday is probably ... passages stay clear. Consider asthma. Many people with seasonal allergies also have asthma, making springtime doubly difficult. If ...

  10. Optical spring effect in nanoelectromechanical systems

    SciTech Connect

    Tian, Feng; Zhou, Guangya Du, Yu; Chau, Fook Siong; Deng, Jie

    2014-08-11

    In this Letter, we report a hybrid system consisting of nano-optical and nano-mechanical springs, in which the optical spring effect works to adjust the mechanical frequency of a nanoelectromechanical systems resonator. Nano-scale folded beams are fabricated as the mechanical springs and double-coupled one-dimensional photonic crystal cavities are used to pump the “optical spring.” The dynamic characteristics of this hybrid system are measured and analyzed at both low and high input optical powers. This study leads the physical phenomenon of optomechanics in complex nano-opto-electro-mechanical systems (NOEMS) and could benefit the future applications of NOEMS in chip-level communication and sensing.

  11. The Nonlinear Spring and Energy Conservation.

    ERIC Educational Resources Information Center

    Sherfinski, John

    1989-01-01

    Describes an air track experiment demonstrating the transfer of mechanical energy from elastic potential to kinetic. Discusses four methods for calculating energy stored in the spring. Included are pictures, typical data, and graphs. (YP)

  12. Tunable and regenerative DNA zipper based spring

    NASA Astrophysics Data System (ADS)

    Landon, Preston; Mo, Alexander; Ramachandran, Srinivasan; Lal, Ratnesh

    2012-02-01

    We report a DNA zipper based actuator device termed `DNA- spring' with tunable and repeated cycles of extension and contraction ability. DNA zipper is a double-stranded DNA system engineered to open upon its specific interaction with appropriately designed single strand DNA (ssDNA), opening of the zipper is driven by binding energy differences between the DNA strands. The zipper system is incorporated with defined modifications to function like a spring, capable of delivering approximately 9 pN force over a distance of approximately 13 nm, producing approximately 116 kJ/mol of work. Time-lapse fluorescence and fluorescent DNA gel electrophoresis analysis is utilized to evaluate and confirm the spring action. A second zipper incorporated into the spring provides the ability to couple/decouple to an object/substrate. Such devices would have wide application, including for conditionally triggered molecular delivery systems and as actuators in nano-devices. zippers.

  13. R&W Club Frederick Readies for Spring and Beyond | Poster

    Cancer.gov

    By Carolynne Keenan, Guest Writer What do discounted Frederick Keys tickets, a wine tour of Frederick area vineyards, a Segway tour of Washington, DC, a summertime National Parks tour, and a special children’s Easter party have in common? All are activities that the Recreation & Welfare (R&W) Club Frederick is currently developing for spring 2013. At the first members meeting in January, Roxanne Angell, R&W Club Frederick chair, unveiled plans under development to make 2013 a successful year.

  14. Joint Center for Operational Analysis Journal. Volume 12, Issue 1, Spring 2010

    DTIC Science & Technology

    2010-01-01

    Approved for public release; distribution unlimited 13. SUPPLEMENTARY NOTES 14. ABSTRACT 15 . SUBJECT TERMS 16. SECURITY CLASSIFICATION OF: 17...through formation of Afghanistan’s for- eign policy. The full independence of Afghanistan was declared in 1919. Kurdish Nationalism: Myth or Reality...JCOA Journal, Spring 2010 15 1991 meeting between Saddam and a major delegate of tribal chieftains was a symbolic turning point in the burgeoning

  15. The DISAM Journal of International Security Assistance Management. Volume 23, Number 3, Spring 2001

    DTIC Science & Technology

    2001-01-01

    Security Assistance Management “Training Management Systems (TMS): The Past, Present, and Future” . . . . . . . . . . .88 The DISAM Journal, Spring 2001iii...to the country to learn about its legal system and political concerns through a series of meetings with civilian and military officials, as well as...working military justice system and learning how to prepare and use rules of engagement in a coalition environment. The legal aspects of command and

  16. R&W Club Frederick Readies for Spring and Beyond | Poster

    Cancer.gov

    By Carolynne Keenan, Guest Writer What do discounted Frederick Keys tickets, a wine tour of Frederick area vineyards, a Segway tour of Washington, DC, a summertime National Parks tour, and a special children’s Easter party have in common? All are activities that the Recreation & Welfare (R&W) Club Frederick is currently developing for spring 2013. At the first members meeting in January, Roxanne Angell, R&W Club Frederick chair, unveiled plans under development to make 2013 a successful year.

  17. Molecular biology of Homo sapiens: Abstracts of papers presented at the 51st Cold Spring Harbor symposium on quantitative biology

    SciTech Connect

    Watson, J.D.; Siniscalco, M.

    1986-01-01

    This volume contains abstracts of papers presented at the 51st Cold Springs Harbor Symposium on Quantitative Biology. The topic for this meeting was the ''Molecular Biology of Homo sapiens.'' Sessions were entitled Human Gene Map, Human Cancer Genes, Genetic Diagnosis, Human Evolution, Drugs Made Off Human Genes, Receptors, and Gene Therapy. (DT)

  18. Stabilising Springs for Fixed Lingual Retainer

    PubMed Central

    Karthikeyan, M.K.; Ramachandraprabhakar; Saravanan, R.; Rajvikram, N.; Kuppuchamy

    2013-01-01

    Most treated malocclusion needs fixed lingual retention. To stabilise fixed lingual retainer in the exact location needs proper stabilisation. Proper stabilization requires a holding spring. This Stabilising Spring should be easy to fabricate and help the clinician to stabilise the retainer quickly and save the chair side time. More over it should not irritate the mucosa and should be easy to insert and remove. PMID:24392431

  19. Biomechanical investigation of the hybrid retraction spring.

    PubMed

    Sander, F G

    2000-01-01

    We succeeded in developing a retraction spring that shows virtually constant retracting forces up to an activation of about 4.5 mm through the use of various non-linear materials. Compared to all other known retraction springs, an actual bodily retraction is possible over a large range for the first time. The clinical application requires no more than one reactivation. The anti-tipping moment is 10 Nmm and is to be considered constant over the entire activation range. This anti-tipping moment produces an extrusive force for the canine and an intrusive force for the molar. This side-effect can be avoided by bending a sweep into the steel portion or compensated by bending a step into the steel portion of this retraction spring. The anti-rotational moment is about 3 to 5 Nmm measured over the entire activation range. In contrast to many other springs, the favorable M/F ratio for the anti-tipping movement allows an actual bodily retraction of canines. Even when the retracting force is no longer active, the moment that moves the root of the canine distally is still acting, so that the spring can also be used for the root movement. The M/F ratio for the anti-rotational movement is between 3 and 5 mm and therefore allows retraction of the canine without causing major distortions. Customary brackets with a .018" or .022" horizontal slot can be used, as the spring is designed for a .018" x .018" vertical slot. Each spring can be used for both the left and the right canines. The steel portion allows second-order and, if desired, third-order bends to be made. The additionally necessary bends have already been described. The hybrid retraction spring can also be applied for en masse retraction of incisors if a cross-tube is used for the anterior area.

  20. Northern Polar Spring in IR

    NASA Technical Reports Server (NTRS)

    2004-01-01

    [figure removed for brevity, see original site]

    Released 12 March 2004

    The Odyssey spacecraft has completed a full Mars year of observations of the red planet. For the next several weeks the Image of the Day will look back over this first mars year. It will focus on four themes: 1) the poles - with the seasonal changes seen in the retreat and expansion of the caps; 2) craters - with a variety of morphologies relating to impact materials and later alteration, both infilling and exhumation; 3) channels - the clues to liquid surface flow; and 4) volcanic flow features. While some images have helped answer questions about the history of Mars, many have raised new questions that are still being investigated as Odyssey continues collecting data as it orbits Mars.

    Infrared images taken during the daytime exhibit both the morphological and thermophysical properties of the surface of Mars. Morphologic details are visible due to the effect of sun-facing slopes receiving more energy than antisun-facing slopes. This creates a warm (bright) slope and cool (dark) slope appearance that mimics the light and shadows of a visible wavelength image. Thermophysical properties are seen in that dust heats up more quickly than rocks. Thus dusty areas are bright and rocky areas are dark.

    This image was collected October 19, 2002 during the northern spring season. The top half of this daytime IR image shows the North Polar sand sea.

    Image information: IR instrument. Latitude 76.2, Longitude 226.8 East (133.2 West). 19 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in

  1. Spring Flooding on the Mississippi

    NASA Technical Reports Server (NTRS)

    2001-01-01

    The mighty Mississippi River, from its source at Lake Itasca, Minnesota to the Gulf of Mexico, is approximately 3780 kilometers long and has flooded many times during its history. In April 2001, residents of Minnesota, Wisconsin, Iowa, and Illinois once again battled near-record water levels. These Multi-angle Imaging SpectroRadiometer (MISR) images, acquired one month apart, illustrate the effects of snowmelt and heavy rainfall on areas traversed by the upper Mississippi River.

    Each image in this pair covers an identical 195-kilometer x 339-kilometer area. The one on the left was acquired March 26, 2001 (Terra orbit 6762), and the one on the right is from April 27 (Terra orbit 7228). Both are false-color composites, displaying data from the near-infrared band of the instrument's nadir (vertical-viewing) camera as red; the green band of the nadir camera as green; and the red band of the 26-degree forward camera as blue. Data from the forward-viewing camera is included to enhance the reflectivity of water. The near-infrared data provide a good indicator of the abundance of vegetation since plants are highly reflective in this spectral region. The redder color of the right-hand image is due to increased vegetation cover brought about by wet conditions and the onset of spring.

    Locations of major cities are marked on the left-hand image; major rivers are marked on the right. The portion of the Mississippi River captured in these views extends from just north of La Crosse, Wisconsin to south of Davenport, Iowa. The Wisconsin River joins the Mississippi just below Prairie du Chien. On March 26, snow can clearly be seen over much of the northern portions of the left-hand image. At this point in time, the snow had already begun to melt and the Wapsipinicon River was 52 centimeters above flood stage at De Witt, Iowa (between Clinton and Davenport). By mid-April heavy rainfall swelled the Mississippi and Wisconsin rivers. In the early morning of April 25, two days

  2. Northern Polar Spring in IR

    NASA Technical Reports Server (NTRS)

    2004-01-01

    [figure removed for brevity, see original site]

    Released 12 March 2004

    The Odyssey spacecraft has completed a full Mars year of observations of the red planet. For the next several weeks the Image of the Day will look back over this first mars year. It will focus on four themes: 1) the poles - with the seasonal changes seen in the retreat and expansion of the caps; 2) craters - with a variety of morphologies relating to impact materials and later alteration, both infilling and exhumation; 3) channels - the clues to liquid surface flow; and 4) volcanic flow features. While some images have helped answer questions about the history of Mars, many have raised new questions that are still being investigated as Odyssey continues collecting data as it orbits Mars.

    Infrared images taken during the daytime exhibit both the morphological and thermophysical properties of the surface of Mars. Morphologic details are visible due to the effect of sun-facing slopes receiving more energy than antisun-facing slopes. This creates a warm (bright) slope and cool (dark) slope appearance that mimics the light and shadows of a visible wavelength image. Thermophysical properties are seen in that dust heats up more quickly than rocks. Thus dusty areas are bright and rocky areas are dark.

    This image was collected October 19, 2002 during the northern spring season. The top half of this daytime IR image shows the North Polar sand sea.

    Image information: IR instrument. Latitude 76.2, Longitude 226.8 East (133.2 West). 19 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in

  3. Southern Spring in False Color

    NASA Technical Reports Server (NTRS)

    2004-01-01

    [figure removed for brevity, see original site]

    The Odyssey spacecraft has completed a full Mars year of observations of the red planet. For the next several weeks the Image of the Day will look back over this first mars year. It will focus on four themes: 1) the poles - with the seasonal changes seen in the retreat and expansion of the caps; 2) craters - with a variety of morphologies relating to impact materials and later alteration, both infilling and exhumation; 3) channels - the clues to liquid surface flow; and 4) volcanic flow features. While some images have helped answer questions about the history of Mars, many have raised new questions that are still being investigated as Odyssey continues collecting data as it orbits Mars.

    This image was collected June 25, 2003 during the southern spring season. This false color image shows both the layered ice cap and darker 'spots' that are seen only when the sun first lights the polar surface.

    Image information: VIS instrument. Latitude -82.3, Longitude 306 East (54 West). 19 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

    NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the

  4. Water quality modelling of Jadro spring.

    PubMed

    Margeta, J; Fistanic, I

    2004-01-01

    Management of water quality in karst is a specific problem. Water generally moves very fast by infiltration processes but far more by concentrated flows through fissures and openings in karst. This enables the entire surface pollution to be transferred fast and without filtration into groundwater springs. A typical example is the Jadro spring. Changes in water quality at the spring are sudden, but short. Turbidity as a major water quality problem for the karst springs regularly exceeds allowable standards. Former practice in problem solving has been reduced to intensive water disinfection in periods of great turbidity without analyses of disinfection by-products risks for water users. The main prerequisite for water quality control and an optimization of water disinfection is the knowledge of raw water quality and nature of occurrence. The analysis of monitoring data and their functional relationship with hydrological parameters enables establishment of a stochastic model that will help obtain better information on turbidity in different periods of the year. Using the model a great number of average monthly and extreme daily values are generated. By statistical analyses of these data possibility of occurrence of high turbidity in certain months is obtained. This information can be used for designing expert system for water quality management of karst springs. Thus, the time series model becomes a valuable tool in management of drinking water quality of the Jadro spring.

  5. Travertine Hot Springs, Mono County, California

    SciTech Connect

    Chesterman, C.W.; Kleinhampl, F.J.

    1991-08-01

    This article is an abridgement of Special Report 172, Travertine Hot Springs at Bridgeport, Mono County, California, in preparation at the California Division of Mines and Geology. The Travertine Hot Springs area is on the northern edge of what many consider to be one of the most tectonically active areas in the United States. There is abundant geothermal and seismic activity. The landscape is dotted with volcanic features- cones, craters, domes, flows, fumaroles and hot springs-indicators of unrest in the present as well as reminders of activity in the past. Travertine, also known as calcareous sinter, is limestone formed by chemical precipitation of calcium carbonate (CaCO{sub 3}) from ground or surface waters. It forms stalactites and stalagmites in caves, fills some veins and spring conduits and can also be found at the mouths of springs, especially hot springs. The less compact variety is called tufa and the dense, banded variety is known as Mexican onyx, or onyx marble. True onyx, however, is a banded silicate.

  6. The influence of local spring temperature variance on temperature sensitivity of spring phenology.

    PubMed

    Wang, Tao; Ottlé, Catherine; Peng, Shushi; Janssens, Ivan A; Lin, Xin; Poulter, Benjamin; Yue, Chao; Ciais, Philippe

    2014-05-01

    The impact of climate warming on the advancement of plant spring phenology has been heavily investigated over the last decade and there exists great variability among plants in their phenological sensitivity to temperature. However, few studies have explicitly linked phenological sensitivity to local climate variance. Here, we set out to test the hypothesis that the strength of phenological sensitivity declines with increased local spring temperature variance, by synthesizing results across ground observations. We assemble ground-based long-term (20-50 years) spring phenology database (PEP725 database) and the corresponding climate dataset. We find a prevalent decline in the strength of phenological sensitivity with increasing local spring temperature variance at the species level from ground observations. It suggests that plants might be less likely to track climatic warming at locations with larger local spring temperature variance. This might be related to the possibility that the frost risk could be higher in a larger local spring temperature variance and plants adapt to avoid this risk by relying more on other cues (e.g., high chill requirements, photoperiod) for spring phenology, thus suppressing phenological responses to spring warming. This study illuminates that local spring temperature variance is an understudied source in the study of phenological sensitivity and highlight the necessity of incorporating this factor to improve the predictability of plant responses to anthropogenic climate change in future studies.

  7. Assessment of sulfurous springs in the west of Iraq for balneotherapy, drinking, irrigation and aquaculture purposes.

    PubMed

    Awadh, Salih Muhammad; Al-Ghani, Sura Abdul

    2014-06-01

    This research deals with the sulfurous spring waters flow along the course of the Euphrates River in western Iraq in the area extended between Haqlaniya and Hit within the Al-Anbar governorate. Eleven springs (3 in Haqlanya, 4 in Kubaysa and 4 in Hit) have been addressed for the purpose of water evaluation for balneology, drinking, irrigation and aquaculture (fish farming). In order to meet the objectives of this research, all springs were sampled and analyzed for the total dissolved solid, electrical conductivity, pH, temperature, major cations (Ca(2+), Mg(2+), Na(+) and K(+)), major anions (SO(4)(2-), Cl(-), HCO(3)(-) and CO(3)(2-)), minor anions (PO(4)(3-)and NO(3)(-)) as well as the trace elements that included Pb, Zn, Cd, Ni, Fe, Mn, Cu, Br, F, Ba, B, Sr, Al, As, Cr, Hg and Se. The International Standards of World Health Organization are used for assessing the water quality. The results revealed that the springs belong to the tepid springs of 27-30 °C and classified as hypothermal to the thermal springs. Lithochemistry and geochemical processes clearly affected the water chemistry. The hydrogeochemical processes are responsible for the element enrichment in water by the chemical dissolution of carbonate and gypsum and evaporation as well. The results of the study indicate the possibility of using spring water for therapeutic purposes, but not allowed for drinking and aquaculture (fish farming), except those free of H(2)S gas. On the other hand, it can be used for irrigation with risk. However, soil type as well as proper selection of plants should be taken into consideration.

  8. Programmed cell death: Superman meets Dr Death.

    PubMed

    Meier, Pascal; Silke, John

    2003-12-01

    This year's Cold Spring Harbor meeting on programmed cell death (September 17-21, 2003), organised by Craig Thompson and Junying Yuan, was proof that the 'golden age' of research in this field is far from over. There was a flurry of fascinating insights into the regulation of diverse apoptotic pathways and unexpected non-apoptotic roles for some of the key apoptotic regulators and effectors. In addition to their role in cell death, components of the apoptotic molecular machinery are now known to also function in a variety of essential cellular processes, such as regulating glucose homeostasis, lipid metabolism, cell proliferation and differentiation.

  9. Spring break versus spring broken: predictive utility of spring break alcohol intentions and willingness at varying levels of extremity.

    PubMed

    Litt, Dana M; Lewis, Melissa A; Patrick, Megan E; Rodriguez, Lindsey; Neighbors, Clayton; Kaysen, Debra L

    2014-02-01

    Within the domain of risk-related behavior, many times the decision to engage is not a product of premeditation or intention. The prototype willingness model was created to capture and explain the unintended element of risk behavior. The present study aimed to evaluate the importance of willingness versus intention, two important constructs within the prototype willingness model, in relation to spring break drinking behavior when assessed at both high and low extremities. College undergraduates (N = 275) completed questionnaires prior to spring break regarding their anticipated spring break activities. Willingness and intention were assessed for different levels of risk. Specifically, participants indicated the extent to which they intended to (a) get drunk and (b) drink enough to black out or pass out; and the extent to which they were willing to (a) get drunk and (b) drink enough to black out or pass out. When classes resumed following spring break, the students indicated the extent to which they actually (a) got drunk and (b) drank enough to black out or pass out. Results demonstrated that when the health-related risk was lower (i.e., getting drunk), intention was a stronger predictor of behavior than was willingness. However, as the level of risk increased (i.e., getting drunk enough to black out or pass out), willingness more strongly predicted behavior. The present study suggests that willingness and intentions differentially predict spring break alcohol-related behavior depending on the extremity of behavior in question. Implications regarding alcohol interventions are discussed.

  10. Radioactive mineral springs in Delta County, Colorado

    USGS Publications Warehouse

    Cadigan, Robert A.; Rosholt, John N.; Felmlee, J. Karen

    1976-01-01

    The system of springs in Delta County, Colo., contains geochemical clues to the nature and location of buried uranium-mineralized rock. The springs, which occur along the Gunnison River and a principal tributary between Delta and Paonia, are regarded as evidence of a still-functioning hydrothermal system. Associated with the springs are hydrogen sulfide and sulfur dioxide gas seeps, carbon dioxide gas-powered geysers, thick travertine deposits including radioactive travertine, and a flowing warm-water (41?C) radioactive well. Geochemical study of the springs is based on surface observations, on-site water-property measurements, and sampling of water, travertine, soft precipitates, and mud. The spring deposits are mostly carbonates, sulfates, sulfides, and chlorides that locally contain notable amounts of some elements, such as arsenic, barium, lithium, and radium. Samples from five localities have somewhat different trace element assemblages even though they are related to the same hydrothermal system. All the spring waters but one are dominated by sodium chloride or sodium bicarbonate. The exception is an acid sulfate water with a pH of 2.9, which contains high concentrations of aluminum and iron. Most of the detectable radioactivity is due to the presence of radium-226, a uranium daughter product, but at least one spring precipitate contains abundant radium-228, a thorium daughter product. The 5:1 ratio of radium-228 to radium-226 suggests the proximity of a vein-type deposit as a source for the radium. The proposed locus of a thorium-uranium mineral deposit is believed to lie in the vicinity of Paonia, Colo. Exact direction and depth are not determinable from data now available.

  11. 75 FR 39205 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance...

  12. 75 FR 13075 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-18

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance...

  13. 77 FR 74827 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-18

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance...

  14. 78 FR 76101 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-16

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. ] SUMMARY: The Architectural and Transportation Barriers Compliance...

  15. 78 FR 12715 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-25

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance...

  16. 77 FR 7126 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-10

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance...

  17. RAS Ordinary Meeting

    NASA Astrophysics Data System (ADS)

    2014-08-01

    Here are summarized talks from the February and March RAS Ordinary Meetings. The February meeting also enjoyed the Eddington Lecture from Prof. Lisa Kewley (Australian National University) on galaxy evolution in 3D.

  18. 75 FR 66061 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-27

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers...

  19. 76 FR 68127 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ...] [FR Doc No: 2011-28540] ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers Compliance Board (Access Board) plans to hold its regular...

  20. 76 FR 21702 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-18

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers...

  1. 77 FR 51513 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-24

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers...

  2. 76 FR 10557 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-25

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers...

  3. 76 FR 78611 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-19

    ... From the Federal Register Online via the Government Publishing Office ] ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers...

  4. 77 FR 36479 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-19

    ... From the Federal Register Online via the Government Publishing Office ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and Transportation Barriers...

  5. Nonpersisting Student Analysis for Fall 1977-Spring 1978. Research Note.

    ERIC Educational Resources Information Center

    Baratta, Mary Kathryne

    This research note reviews an analysis of Moraine Valley Community College nonpersisting students for fall 1977 and spring 1978. Information is provided on trends in transfer and occupational student retention by semester from spring 1970 through fall/spring 1977-78, and on fall 1977 and spring 1978 persister and nonpersister characteristics. Of…

  6. Making Meetings Work Better.

    ERIC Educational Resources Information Center

    Standke, Linda

    1978-01-01

    Focusing on the increased use by trainers of off-site facilities for employee training meetings, this article looks at some improvements and the expanding market in the meeting site industry. It also highlights emerging trends in the industry and covers the growth of meeting planning into a profession. (EM)

  7. Managing Magnificent Meetings

    ERIC Educational Resources Information Center

    Christianson, Becky

    2005-01-01

    Though trustees may communicate informally via telephone or e-mail, the board's formal meetings are the primary setting in which issues of great consequence are discussed and decided. That's why it is vital for those responsible for planning board meetings to be certain each meeting accomplishes the business at hand. Beyond common sense, planning…

  8. 75 FR 58350 - Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-24

    ... RESEARCH COMMISSION Meeting Notice is hereby given that the U.S. Arctic Research Commission will hold its... presentations concerning Arctic research activities. The focus of the meeting will be reports and updates on programs and research projects affecting the Arctic. If you plan to attend this meeting, please notify...

  9. Characterization of the hydrogeology of the sacred Gihon Spring, Jerusalem: a deteriorating urban karst spring

    NASA Astrophysics Data System (ADS)

    Amiel, Ronit Benami; Grodek, Tamir; Frumkin, Amos

    2010-09-01

    The Gihon Spring, Jerusalem, is important for the major monotheistic religions. Its hydrogeology and hydrochemistry is studied here in order to understand urbanization effects on karst groundwater resources, and promote better water management. High-resolution monitoring of the spring discharge, temperature and electrical conductivity, was performed, together with chemical and bacterial analysis. All these demonstrate a rapid response of the spring to rainfall events and human impact. A complex karst system is inferred, including conduit flow, fissure flow and diffuse flow. Electrical conductivity, Na+ and K+ values (2.0 mS/cm, 130 and 50 mg/l respectively) are very high compared to other nearby springs located at the town margins (0.6 mS/cm, 15 and <1 mg/l respectively), indicating considerable urban pollution in the Gihon area. The previously cited pulsating nature of the spring was not detected during the present high-resolution monitoring. This phenomenon may have ceased due to additional water sources from urban leakage and irrigation feeding the spring. The urbanization of the recharge catchment thus affects the spring water dramatically, both chemically and hydrologically. Appropriate measures should therefore be undertaken to protect the Gihon Spring and other karst aquifers threatened by rapid urbanization.

  10. Sample Return from Ancient Hydrothermal Springs

    NASA Technical Reports Server (NTRS)

    Allen, Carlton C.; Oehler, Dorothy Z.

    2008-01-01

    Hydrothermal spring deposits on Mars would make excellent candidates for sample return. Molecular phylogeny suggests that that life on Earth may have arisen in hydrothermal settings [1-3], and on Mars, such settings not only would have supplied energy-rich waters in which martian life may have evolved [4-7] but also would have provided warm, liquid water to martian life forms as the climate became colder and drier [8]. Since silica, sulfates, and clays associated with hydrothermal settings are known to preserve geochemical and morphological remains of ancient terrestrial life [9-11], such settings on Mars might similarly preserve evidence of martian life. Finally, because formation of hydrothermal springs includes surface and subsurface processes, martian spring deposits would offer the potential to assess astrobiological potential and hydrological history in a variety of settings, including surface mineralized terraces, associated stream deposits, and subsurface environments where organic remains may have been well protected from oxidation. Previous attempts to identify martian spring deposits from orbit have been general or limited by resolution of available data [12-14]. However, new satellite imagery from HiRISE has a resolution of 28 cm/pixel, and based on these new data, we have interpreted several features in Vernal Crater, Arabia Terra as ancient hydrothermal springs [15, 16].

  11. Quarry geotechnical report for the Weldon Spring Site Remedial Action Project, Weldon Spring, Missouri

    SciTech Connect

    Not Available

    1990-11-01

    This report has been prepared for the United States Department of Energy's (DOE) Weldon Spring Site Remedial Action Project (WSSRAP) by the Project Management Contractor (PMC), which is MK-Ferguson Company (MK-Ferguson) with Jacobs Engineering Group (JEG) as its designated subcontractor. The Weldon Spring site (WSS) comprises the Weldon Spring quarry area and the Weldon Spring chemical plant and raffinate pit areas. This report presents the results of geotechnical investigations conducted during 1989--1990 at the proposed Weldon Spring quarry staging and water treatment facilities in the quarry area. The facilities are intended for treatment of water removed from the quarry area. An access road and a decontamination pad will be necessary for handling and transportation of bulk waste. Results of previous geotechnical investigations performed by other geoscience and environmental engineering firms in the quarry area, were reviewed, summarized and incorporated into this report. Well logging, stratigraphy data, piezometer data, elevations, and soil characteristics are also included.

  12. Spring Deposits and Mud Volcanoes on Mars

    NASA Astrophysics Data System (ADS)

    Allen, C. C.; Oehler, D. Z.; Baker, D. M.

    2008-12-01

    We report evidence for spring deposits in Vernal Crater, Arabia Terra. The Vernal structures are low mounds, each approximately 250 m by 500 m in extent, with terraced flanks, apical depressions, river-like channels, concentric fractures, and elliptical tonal anomalies. All of these features are common in terrestrial springs such as the Dalhousie complex in Australia. The structures occur in an apparent unit of interdune, water-laid sediment and are associated with evidence of subsurface fluid flow in sets of aligned outcrops. The Vernal springs may be part of a larger complex of spring deposits and lineations, suggesting that fluid flow in this region was relatively extensive. The structures in Vernal Crater are coated with a thin layer of dust, which prevents mineral identification from orbit. In an attempt to find evidence for additional spring mounds, we conducted a survey of nearly 2,000 locations for which CRISM spectral images are available. We used CRISM data to identify dust-free, hydrated areas and HiRISE, CTX, and MOC images to evaluate morphology. This study covered all longitudes and latitudes from 50N to 70S, except near Tharsis where data were analyzed south of 15S. No location exhibited morphological features that closely resembled those in Vernal Crater, suggesting that these putative spring mounds are not common in the highlands of Mars. Our search led us to concentrate on a dust-free area, centered at 41.8N, 332.5E in Acidalia Planitia where Farrand et al. (2005) identified features resembling spring mounds or mud volcanoes. Tanaka et al. (2005) mapped this region as part of the Early Amazonian Vastitas Borealis Unit, interpreted as reworked sediments from outflow channels and highland sources. We mapped over 20 high-albedo pitted domes in the area covered by one HiRISE frame, with dome diameters ranging from 350 m to 1 km. Nearby, similar domes have measured heights ranging from 36 to 65 m. The dome material is darker in THEMIS nighttime IR than

  13. Town of Pagosa Springs geothermal heating system

    SciTech Connect

    Garcia, M.B.

    1997-08-01

    The Town of Pagosa Springs has owned and operated a geothermal heating system since December 1982 to provide geothermal heating during the fall, winter and spring to customers in this small mountain town. Pagosa Springs is located in Archuleta County, Colorado in the southwestern corner of the State. The Town, nestled in majestic mountains, including the Continental Divide to the north and east, has an elevation of 7,150 feet. The use of geothermal water in the immediate area, however, dates back to the 1800`s, with the use of Ute Bands and the Navajo Nation and later by the U.S. Calvery in the 1880`s (Lieutenant McCauley, 1878). The Pagosa area geothermal water has been reported to have healing and therapeutic qualities.

  14. Evaluation of acoustic doppler velocity meters to quantify flow from Comal Springs and San Marcos Springs, Texas

    USGS Publications Warehouse

    Gary, Marcus O.; Gary, Robin H.; Asquith, William H.

    2008-01-01

    Comal Springs and San Marcos Springs are the two largest springs in Texas, are major discharge points for the San Antonio segment of the Edwards aquifer, and provide habitat for several Federally listed endangered species that depend on adequate springflows for survival. It is therefore imperative that the Edwards Aquifer Authority have accurate and timely springflow data to guide resource management. Discharge points for Comal Springs and San Marcos Springs are submerged in Landa Lake and in Spring Lake, respectively. Flows from the springs currently (2008) are estimated by the U.S Geological Survey in real time as surface-water discharge from conventional stage-discharge ratings at sites downstream from each spring. Recent technological advances and availability of acoustic Doppler velocity meters (ADVMs) now provide tools to collect data (stream velocity) related to springflow that could increase accuracy of real-time estimates of the springflows. The U.S. Geological Survey, in cooperation with the Edwards Aquifer Authority, did a study during May 2006 through September 2007 to evaluate ADVMs to quantify flow from Comal and San Marcos Springs. The evaluation was based on two monitoring approaches: (1) placement of ADVMs in important spring orifices - spring run 3 and spring 7 at Comal Springs, and diversion spring at San Marcos Springs; and (2) placement of ADVMs at the nearest flowing streams - Comal River new and old channels for Comal Springs, Spring Lake west and east outflow channels and current (2008) San Marcos River streamflow-gaging site for San Marcos Springs. For Comal Springs, ADVM application at spring run 3 and spring 7 was intended to indicate whether the flows of spring run 3 and spring 7 can be related to total springflow. The findings indicate that velocity data from both discharge features, while reflecting changes in flow, do not reliably show a direct relation to measured streamflow and thus to total Comal Springs flow. ADVMs at the Comal

  15. Integrated geophysical investigations of Main Barton Springs, Austin, Texas, USA

    NASA Astrophysics Data System (ADS)

    Saribudak, By Mustafa; Hauwert, Nico M.

    2017-03-01

    Barton Springs is a major discharge site for the Barton Springs Segment of the Edwards Aquifer and is located in Zilker Park, Austin, Texas. Barton Springs actually consists of at least four springs. The Main Barton Springs discharges into the Barton Springs pool from the Barton Springs fault and several outlets along a fault, from a cave, several fissures, and gravel-filled solution cavities on the floor of the pool west of the fault. Surface geophysical surveys [resistivity imaging, induced polarization (IP), self-potential (SP), seismic refraction, and ground penetrating radar (GPR)] were performed across the Barton Springs fault and at the vicinity of the Main Barton Springs in south Zilker Park. The purpose of the surveys was two-fold: 1) locate the precise location of submerged conduits (caves, voids) carrying flow to Main Barton Springs; and 2) characterize the geophysical signatures of the fault crossing Barton Springs pool. Geophysical results indicate significant anomalies to the south of the Barton Springs pool. A majority of these anomalies indicate a fault-like pattern, in front of the south entrance to the swimming pool. In addition, resistivity and SP results, in particular, suggest the presence of a large conduit in the southern part of Barton Springs pool. The groundwater flow-path to the Main Barton Springs could follow the locations of those resistivity and SP anomalies along the newly discovered fault, instead of along the Barton Springs fault, as previously thought.

  16. Environmental conditions of boreal springs explained by capture zone characteristics

    NASA Astrophysics Data System (ADS)

    Rossi, Pekka M.; Marttila, Hannu; Jyväsjärvi, Jussi; Ala-aho, Pertti; Isokangas, Elina; Muotka, Timo; Kløve, Bjørn

    2015-12-01

    Springs are unique ecosystems, but in many cases they are severely threatened and there is an urgent need for better spring management and conservation. To this end, we studied water quality and quantity in springs in Oulanka National Park, north-east Finland. Multivariate statistical methods were employed to relate spring water quality and quantity to hydrogeology and land use of the spring capture zone. This revealed that most springs studied were affected by locally atypical dolostone-limestone bedrock, resulting in high calcium, pH, and alkalinity values. Using Ward's hierarchical clustering, the springs were grouped into four clusters based on their water chemistry. One cluster consisted of springs affected by past small-scale agriculture, whereas other clusters were affected by the variable bedrock, e.g., springs only 1 km from the dolostone-limestone bedrock area were beyond its calcium-rich impact zone. According to a random forest model, the best predictors of spring water chemistry were spring altitude and the stable hydrogen isotope ratio of the water (δ2H). Thus stable water isotopes could be widely applicable for boreal spring management. They may also provide a rough estimate of groundwater flow route (i.e., whether it is mainly local or regional), which largely determines the chemical characteristics of spring water. Our approach could be applied in other boreal regions and at larger spatial scales for improved classification of springs and for better targeted spring management.

  17. JANNAF 30th Propellant Development and Characterization Subcommittee Meeting. Volume I

    NASA Technical Reports Server (NTRS)

    Moore, T. L. (Editor); Becker, D. L. (Editor)

    2002-01-01

    This volume, the first of three volumes, is a compilation of 22 unclassified/unlimited technical papers presented at the Joint Army-Navy-NASA-Air Force (JANNAF) 30th Propellant Development & Characterization Subcommittee Meeting, held on 18-21 March 2002 at the Sheraton Colorado Springs Hotel, Colorado Springs, Colorado. The papers presented herein reflect work performed in the areas of green energetic materials (GEM) development; liquid and gel propellant development; propellant surveillance and aging; and propellant chemistry test methods.

  18. JANNAF 30th Propellant Development and Characterization Subcommittee Meeting. Volume I

    NASA Technical Reports Server (NTRS)

    Moore, T. L. (Editor); Becker, D. L. (Editor)

    2002-01-01

    This volume, the first of three volumes, is a compilation of 22 unclassified/unlimited technical papers presented at the Joint Army-Navy-NASA-Air Force (JANNAF) 30th Propellant Development & Characterization Subcommittee Meeting, held on 18-21 March 2002 at the Sheraton Colorado Springs Hotel, Colorado Springs, Colorado. The papers presented herein reflect work performed in the areas of green energetic materials (GEM) development; liquid and gel propellant development; propellant surveillance and aging; and propellant chemistry test methods.

  19. Rapid River Hatchery - Spring Chinook, Final Report

    SciTech Connect

    Watson, M.

    1996-05-01

    This report presents the findings of the independent audit of the Rapid River Hatchery (Spring Chinook). The hatchery is located in the lower Snake River basin near Riggins Idaho. The hatchery is used for adult collection, egg incubation, and rearing of spring chinook. The audit was conducted in April 1996 as part of a two-year effort that will include 67 hatcheries and satellite facilities located on the Columbia and Snake River system in Idaho, Oregon, and Washington. The hatchery operating agencies include the US Fish and Wildlife Service, Idaho Department of Fish and Game, Oregon Department of Fish and Wildlife, and Washington Department of Fish and Wildlife.

  20. Peatland Structural Controls on Spring Distribution

    NASA Astrophysics Data System (ADS)

    Hare, D. K.; Boutt, D. F.; Hackman, A. M.; Davenport, G.

    2013-12-01

    The species richness of wetland ecosystems' are sustained by the presence of discrete groundwater discharge, or springs. Springs provide thermal refugia and a source of fresh water inflow crucial for survival of many wetland species. The subsurface drivers that control the spatial distribution of surficial springs throughout peatland complexes are poorly understood due to the many challenges peatlands pose for hydrologic characterization, such as the internal heterogeneities, soft, dynamic substrate, and low gradient of peat drainage. This has previously made it difficult to collect spatial data required for restoration projects that seek to support spring obligate and thermally stressed species such as trout. Tidmarsh Farms is a 577-acre site in Southeastern Massachusetts where 100+ years of cranberry farming has significantly altered the original peatland hydrodynamics and ecology. Farming practices such as the regular application of sand, straightening of the main channel, and addition of drainage ditches has strongly degraded this peatland ecosystem. Our research has overlain non-invasive geophysical, thermal, and water isotopic data from the Tidmarsh Farms peatland to provide a detailed visualization of how subsurface peat structure and spring patterns correlate. Ground penetrating radar (GPR) has proven particularly useful in characterizing internal peat structure and the mineral soil interface beneath peatlands, we interpolate the peatland basin at a large scale (1 km2) and compare this 3-D surface to the locations of springs on the peat platform. Springs, expressed as cold anomalies in summer and warm anomalies in winter, were specifically located by combining fiber-optic and infrared thermal surveys, utilizing the numerous relic agricultural drainage ditches as a sampling advantage. Isotopic signatures of the spring locations are used to distinguish local and regional discharge, differences that can be explained in part by the peat basin structure

  1. Spring-Loaded Joule-Thomson Valve

    NASA Technical Reports Server (NTRS)

    Jones, J. A.; Britcliffe, M. J.

    1986-01-01

    Improved design reduces clogging and maintains constant pressure drop as flow rate varies. Spring-Loaded Joule-Thomson Valve pressure drop regulated by spring pushing stainless-steel ball against soft brass seat. Pressure drop remains nearly constant, regardless of helium flow rate and of any gas contaminants frozen on valve seat. Because springloaded J-T valve maintains constant pressure drop, upstream roomtemperature throttle valve adjusts flow rate precisely for any given upstream pressure. In addition, new valve relatively invulnerable to frozen gas contaminants, which clog fixed-orifice J-T valves.

  2. A global review on ambient Limestone-Precipitating Springs (LPS): Hydrogeological setting, ecology, and conservation.

    PubMed

    Cantonati, Marco; Segadelli, Stefano; Ogata, Kei; Tran, Ha; Sanders, Diethard; Gerecke, Reinhard; Rott, Eugen; Filippini, Maria; Gargini, Alessandro; Celico, Fulvio

    2016-10-15

    Springs are biodiversity hotspots and unique habitats that are threatened, especially by water overdraft. Here we review knowledge on ambient-temperature (non-geothermal) freshwater springs that achieve sufficient oversaturation for CaCO3 -by physical CO2 degassing and activity of photoautotrophs- to deposit limestone, locally resulting in scenic carbonate structures: Limestone-Precipitating Springs (LPS). The most characteristic organisms in these springs are those that contribute to carbonate precipitation, e.g.: the mosses Palustriella and Eucladium, the crenophilous desmid Oocardium stratum, and cyanobacteria (e.g., Rivularia). These organisms appear to be sensitive to phosphorus pollution. Invertebrate diversity is modest, and highest in pools with an aquatic-terrestrial interface. Internationally, comprehensive legislation for spring protection is still relatively scarce. Where available, it covers all spring types. The situation in Europe is peculiar: the only widespread spring type included in the EU Habitat Directive is LPS, mainly because of landscape aesthetics. To support LPS inventorying and management to meet conservation-legislation requirements we developed a general conceptual model to predict where LPS are more likely to occur. The model is based on the pre-requisites for LPS: an aquifer lithology that enables build-up of high bicarbonate and Ca(2+) to sustain CaCO3 oversaturation after spring emergence, combined with intense groundwater percolation especially along structural discontinuities (e.g., fault zones, joints, schistosity), and a proper hydrogeological structure of the discharging area. We validated this model by means of the LPS information system for the Emilia-Romagna Region (northern Italy). The main threats to LPS are water diversion, nutrient enrichment, and lack of awareness by non-specialized persons and administrators. We discuss an emblematic case study to provide management suggestions. The present review is devoted to LPS but

  3. 39 CFR 6.1 - Regular meetings, annual meeting.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Regular meetings, annual meeting. 6.1 Section 6.1 Postal Service UNITED STATES POSTAL SERVICE THE BOARD OF GOVERNORS OF THE U.S. POSTAL SERVICE MEETINGS (ARTICLE VI) § 6.1 Regular meetings, annual meeting. The Board shall meet regularly on a schedule...

  4. 78 FR 6306 - Sunshine Act Meeting-Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ... COMMISSION Sunshine Act Meeting--Closed Meeting The following notice of a closed meeting is published... HOLDING THE MEETING: Commodity Futures Trading Commission. TIME AND DATE: February 4, 2013 at 12:00 p.m... meeting changes, an announcement of the change, along with the new time and place of the meeting will be...

  5. 78 FR 2961 - Sunshine Act Meeting-Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-15

    ... COMMISSION Sunshine Act Meeting--Closed Meeting The following notice of a closed meeting is published... HOLDING THE MEETING: Commodity Futures Trading Commission. TIME AND DATE: January 14, 2013 at 10:00 a.m... meeting changes, an announcement of the change, along with the new time and place of the meeting will be...

  6. Spring Break versus Spring Broken: Predictive Utility of Spring Break Alcohol Intentions and Willingness at Varying Levels of Extremity

    PubMed Central

    Litt, Dana M.; Lewis, Melissa A.; Patrick, Megan E.; Rodriguez, Lindsey; Neighbors, Clayton; Kaysen, Debra L.

    2013-01-01

    Objective Within the domain of risk-related behavior, many times the decision to engage is not a product of premeditation or intention. The Prototype Willingness model was created to capture and explain the unintended element of risk behavior. The present study aimed to evaluate the importance of willingness versus intention, two important constructs within the Prototype Willingness model, in relation to Spring Break drinking behavior when assessed at both high and low extremities. Method College undergraduates (N = 275) completed questionnaires prior to Spring Break regarding their anticipated Spring Break activities. Willingness and intention were assessed for different levels of risk. Specifically, participants indicated the extent to which they intended to (a) get drunk and (b) drink enough to black out or pass out; and the extent to which they were willing to (a) get drunk and (b) drink enough to black out or pass out. When classes resumed following Spring Break, the students indicated the extent to which they actually (a) got drunk and (b) drank enough to black out or pass out. Results Results demonstrated that when the health-related risk was lower (i.e., getting drunk), intention was a stronger predictor of behavior than was willingness. However, as the level of risk increased (i.e., getting drunk enough to black out or pass out), willingness more strongly predicted behavior. Conclusion The present study suggests that willingness and intentions differentially predict Spring Break alcohol-related behavior depending on the extremity of behavior in question. Implications regarding alcohol interventions are discussed. PMID:23404667

  7. The Silent Spring of Rachel Carson.

    ERIC Educational Resources Information Center

    Kerstetter, Ned

    1996-01-01

    Presents a lesson plan examining Rachel Carson's call to arms concerning the harmful consequences of pesticides. Students view a video documentary on Carson's work and read a synopsis of her book, "Silent Spring." Assessment is provided by various activities including writing assignments, creating posters, and editorial cartoons. (MJP)

  8. Registration of 'UI Stone' spring wheat

    USDA-ARS?s Scientific Manuscript database

    Soft white spring wheat (Triticum aestivumL.) is an important wheat class being used in domestic and international markets, especially in Idaho and Pacific Northwest (PNW). The objective of this study was to develop a SWS wheat cultivar with high grain yield, desirable end-use quality, and resistanc...

  9. The Arab Spring: Causes, Consequences, and Implications

    DTIC Science & Technology

    2012-03-18

    The Arab Spring: Causes, Consequences, and Implications by Lieutenant Colonel El Hassane Aissa Moroccan Army...pivotal role in the region. 15. SUBJECT TERMS Middle East, North Africa , Popular Uprisings. 16. SECURITY CLASSIFICATION OF: 17. LIMITATION...Aissa Moroccan Army Dr. Joseph S. McGinnis Project Adviser Only a work of the United States Government is not subject to copyright

  10. Registration of 'Advance' Hard Red Spring Wheat

    USDA-ARS?s Scientific Manuscript database

    Grower and end-user acceptance of new hard red spring wheat (HRSW; Triticum aestivum L.) cultivars is largely contingent on satisfactory agronomic performance, end-use quality potential, and disease resistance levels. Additional characteristics, such as desirable plant height, can also help to maxi...

  11. Nonlinear Resonance and Duffing's Spring Equation

    ERIC Educational Resources Information Center

    Fay, Temple H.

    2006-01-01

    This note discusses the boundary in the frequency--amplitude plane for boundedness of solutions to the forced spring Duffing type equation. For fixed initial conditions and fixed parameter [epsilon] results are reported of a systematic numerical investigation on the global stability of solutions to the initial value problem as the parameters F and…

  12. Nonlinear Resonance and Duffing's Spring Equation II

    ERIC Educational Resources Information Center

    Fay, T. H.; Joubert, Stephan V.

    2007-01-01

    The paper discusses the boundary in the frequency-amplitude plane for boundedness of solutions to the forced spring Duffing type equation x[umlaut] + x + [epsilon]x[cubed] = F cos[omega]t. For fixed initial conditions and for representative fixed values of the parameter [epsilon], the results are reported of a systematic numerical investigation…

  13. Recurrence Effects in the Parametric Spring Pendulum.

    ERIC Educational Resources Information Center

    Falk, Lars

    1978-01-01

    Gives a perturbation analysis to recurrence effects of the spring pendulum. The recurrence depends on two conservation laws which determine the motion in an intermediate region; oscillations outside this region are unstable and must return. Gives the relation to Fermi-Pasta-Ulam problem together with the explicit solution. (Author/GA)

  14. Spring-loaded polymeric gel actuators

    DOEpatents

    Shahinpoor, M.

    1995-02-14

    Spring-loaded electrically controllable polymeric gel actuators are disclosed. The polymeric gels can be polyvinyl alcohol, polyacrylic acid, or polyacrylamide, and are contained in an electrolytic solvent bath such as water plus acetone. The action of the gel is mechanically biased, allowing the expansive and contractile forces to be optimized for specific applications. 5 figs.

  15. Persistence-Retention. Snapshot™ Report, Spring 2014

    ERIC Educational Resources Information Center

    National Student Clearinghouse, 2014

    2014-01-01

    This snapshot report provides information on student persistence and retention rates for Spring 2014. Data is presented in tabular format on the following: (1) First-Year Persistence and Retention Rates by Starting Enrollment Intensity (all institutional sectors); (2) First-Year Persistence and Retention Rates by Age at College Entry (all…

  16. Experimental demonstration of coupled optical springs

    NASA Astrophysics Data System (ADS)

    Gordon, N. A.; Barr, B. W.; Bell, A.; Graef, C.; Hild, S.; Huttner, S. H.; Leavey, S. S.; Macarthur, J.; Sorazu, B.; Wright, J.; Strain, K. A.

    2017-02-01

    Optical rigidity will play an important role in improving the sensitivity of future generations of gravitational wave (GW) interferometers, which employ high laser power in order to reach and exceed the standard quantum limit. Several experiments have demonstrated the combined effect of two optical springs on a single system for very low-weight mirror masses or membranes. In this paper we investigate the complex interactions between multiple optical springs and the surrounding apparatus in a system of comparable dynamics to a large-scale GW detector. Using three 100 g mirrors to form a coupled cavity system capable of sustaining two or more optical springs, we demonstrate a number of different regimes of opto-mechanical rigidity and measurement techniques. Our measurements reveal couplings between each optical spring and the control loops that can affect both the achievable increase in sensitivity and the stability of the system. Hence this work establishes a better understanding of the realisation of these techniques and paves the way to their application in future GW observatories, such as upgrades to Advanced LIGO.

  17. Hard Spring Wheat Technical Committee 2016 Crop

    USDA-ARS?s Scientific Manuscript database

    Seven experimental lines of hard spring wheat were grown at up to five locations in 2016 and evaluated for kernel, milling, and bread baking quality against the check variety Glenn. Wheat samples were submitted through the Wheat Quality Council and processed and milled at the USDA-ARS Hard Red Spri...

  18. Faculty Assessment of General Education. Spring 1995.

    ERIC Educational Resources Information Center

    John Tyler Community Coll., Chester, VA. Office of Assessment, Research, and Planning.

    In spring 1995, Virginia's John Tyler Community College (JTCC) conducted a survey of faculty to assess their perceptions of the integration of general education into classes and programs at the college. A total of 100 surveys were distributed to full-time faculty members and a random sample of adjunct faculty members, receiving a 34% response…

  19. Spring into Art: 87 Eclectic Titles

    ERIC Educational Resources Information Center

    Roncevic, Mirela

    2010-01-01

    Although fall has always been "the" season of art books, spring catalogs--which for most art publishers stretch between January and June--are replete with intriguing and, in some cases, even groundbreaking new publications. The quality of the reproductions and scholarship continues to impress, but so does the growing diversity of subjects, as more…

  20. Tool Releases Optical Elements From Spring Brackets

    NASA Technical Reports Server (NTRS)

    Gum, J. S.

    1984-01-01

    Threaded hooks retract bracket arms holding element. Tool uses three hooks with threaded shanks mounted in ring-shaped holder to pull on tabs to release optical element. One person can easily insert or remove optical element (such as prism or lens) from spring holder or bracket with minimal risk of damage.

  1. Tool Removes Coil-Spring Thread Inserts

    NASA Technical Reports Server (NTRS)

    Collins, Gerald J., Jr.; Swenson, Gary J.; Mcclellan, J. Scott

    1991-01-01

    Tool removes coil-spring thread inserts from threaded holes. Threads into hole, pries insert loose, grips insert, then pulls insert to thread it out of hole. Effects essentially reverse of insertion process to ease removal and avoid further damage to threaded inner surface of hole.

  2. Registration of 'Prevail' hard red spring wheat

    USDA-ARS?s Scientific Manuscript database

    Grower and end-user acceptance of new Hard Red Spring Wheat (HRSW; Triticum aestivum L.) cultivars is largely contingent upon satisfactory agronomic performance, end-use quality potential, and disease resistance levels. Additional characteristics, such as desirable plant height, can also contribute...

  3. Non-Linear Spring Equations and Stability

    ERIC Educational Resources Information Center

    Fay, Temple H.; Joubert, Stephan V.

    2009-01-01

    We discuss the boundary in the Poincare phase plane for boundedness of solutions to spring model equations of the form [second derivative of]x + x + epsilonx[superscript 2] = Fcoswt and the [second derivative of]x + x + epsilonx[superscript 3] = Fcoswt and report the results of a systematic numerical investigation on the global stability of…

  4. Gap Analysis. Student Satisfaction Survey, Spring 1995.

    ERIC Educational Resources Information Center

    Breindel, Matthew

    In spring 1995, College of the Desert, in California, undertook a study to determine the perceptions of students at both its Copper Mountain and Palm Desert campuses regarding college services. A representative sample of students were administered a 7-point attitude scale (Student Satisfaction Survey developed by Noel-Levitz Centers, Inc.) both…

  5. Tried and True: Springing into Linear Models

    ERIC Educational Resources Information Center

    Darling, Gerald

    2012-01-01

    In eighth grade, students usually learn about forces in science class and linear relationships in math class, crucial topics that form the foundation for further study in science and engineering. An activity that links these two fundamental concepts involves measuring the distance a spring stretches as a function of how much weight is suspended…

  6. Standards, Assessments & Opting Out, Spring 2015

    ERIC Educational Resources Information Center

    Advance Illinois, 2015

    2015-01-01

    In the spring, Illinois students will take new state assessments that reflect the rigor and relevance of the new Illinois Learning Standards. But some classmates will sit out and join the pushback against standardized testing. Opt-out advocates raise concerns about over-testing, and the resulting toll on students as well as the impact on classroom…

  7. Magnetically Coupled Magnet-Spring Oscillators

    ERIC Educational Resources Information Center

    Donoso, G.; Ladera, C. L.; Martin, P.

    2010-01-01

    A system of two magnets hung from two vertical springs and oscillating in the hollows of a pair of coils connected in series is a new, interesting and useful example of coupled oscillators. The electromagnetically coupled oscillations of these oscillators are experimentally and theoretically studied. Its coupling is electromagnetic instead of…

  8. Spring reflections on Louisiana sugar cane

    USDA-ARS?s Scientific Manuscript database

    The Louisiana sugar industry continues to produce high cane and sugar yields despite a short growing season. Spring fallow land management is essential for the upcoming crop. In the past few years, wide row spacing, billet cane planting, and cover-cropping have received significant attention. The ei...

  9. Spring into Art: 87 Eclectic Titles

    ERIC Educational Resources Information Center

    Roncevic, Mirela

    2010-01-01

    Although fall has always been "the" season of art books, spring catalogs--which for most art publishers stretch between January and June--are replete with intriguing and, in some cases, even groundbreaking new publications. The quality of the reproductions and scholarship continues to impress, but so does the growing diversity of subjects, as more…

  10. Decadal radon cycles in a hot spring.

    PubMed

    Yan, Rui; Woith, Heiko; Wang, Rongjiang; Wang, Guangcai

    2017-09-21

    A high-fidelity record covering nearly 40 years of water-dissolved radon from the hot spring site of BangLazhang (BLZ), Southwestern China is presented to study multi-year periodicities of radon. Ancillary observational data, i.e., water temperature, spring discharge rate, barometric pressure, combined with regional rainfall, galactic cosmic rays (GCR flux is modulated by solar wind and thus a proxy for solar activity) and regional seismicity from the same period are considered to identify potentially influencing factors controlling the changes in radon. Variations in radon concentration and ancillary observational data are studied using continuous Wavelet Power Spectrum (WPS), Wavelet Coherence (WTC), and Partial Wavelet Coherence (PWC). The results show that the long-period radon concentration is characterized by a quasi-decadal (8-11 years) cycle, matching well with the concurrent periodicity in water temperature, spring discharge rates and GCR. PWCs of radon, discharge rate and water temperature suggest that water temperature variations explain most of the coherent variability of radon and the discharge rate. We tentatively conclude that radon variations are mainly explained by variations in water temperature and spring discharge, which are modified and modulated by earthquakes and quasi-decadal variations of an unidentified process. The influence of solar activity on the decadal periodicity is discussed.

  11. Ultrabasic Spring Geomicrobiology of the Cedars Peridotite

    NASA Astrophysics Data System (ADS)

    Johnson, O. J.; Morrill, P.; Muyzer, G.; Kuenen, J. G.; Nealson, K. H.

    2006-12-01

    Peridotite hosted aquifers are becoming well-known as a modern analog for both extraterrestrial and early- Earth habitats despite relatively few studies on microbes in ultramafic systems. To investigate the microbiology associated with aquifers of the actively serpentinizing Cedars Peridotite in coastal Northern California an interdisciplinary approach involving molecular phylogenetics, organic and inorganic geochemistry, as well as culture-based ecophysiological methods are being utilized. Based on our findings, Cedars spring microorganisms endure one of the harshest low-temperature aqueous environments on Earth with pH greater than 11.8, Eh less than -600 mV, undetectable dissolved CO2 and O2 and a lack of other obvious e- acceptors. Despite these conditions, life inhabits solid substrate surfaces within the springs to a concentration of 10E6-10E7 cells/sq. cm, but planktonic cell densities are extremely low (much less than 10E3/ml). Preliminary 16S data of 3 ultrabasic fluids reveals a community comprised primarily of bacteria that appears to be of low-diversity. Methanogens are strongly suggested to be present based on the isotopic composition of methane bubbling from the springs, but have not yet been identified via molecular techniques. Community level metagenomic sequencing of the ultrabasic spring microorganisms sampled from peridotite-associated mineral surfaces and glass slides incubated in specially designed flow- through chambers are currently in-progress and are likely to reveal several novel metabolic pathways.

  12. Ancient Hydrothermal Springs in Arabia Terra, Mars

    NASA Technical Reports Server (NTRS)

    Oehler, Dorothy Z.; Allen, Carlton C.

    2008-01-01

    Hydrothermal springs are important astrobiological sites for several reasons: 1) On Earth, molecular phylogeny suggests that many of the most primitive organisms are hyperthermophiles, implying that life on this planet may have arisen in hydrothermal settings; 2) on Mars, similar settings would have supplied energy- and nutrient-rich waters in which early martian life may have evolved; 3) such regions on Mars would have constituted oases of continued habitability providing warm, liquid water to primitive life forms as the planet became colder and drier; and 4) mineralization associated with hydrothermal settings could have preserved biosignatures from those martian life forms. Accordingly, if life ever developed on Mars, then hydrothermal spring deposits would be excellent localities in which to search for morphological or chemical remnants of that life. Previous attempts to identify martian spring deposits from orbit have been general or limited by resolution of available data. However, new satellite imagery from HiRISE has a resolution of 28 cm/pixel which allows detailed analysis of geologic structure and geomorphology. Based on these new data, we report several features in Vernal Crater, Arabia Terra that we interpret as ancient hydrothermal springs.

  13. Tried and True: Springing into Linear Models

    ERIC Educational Resources Information Center

    Darling, Gerald

    2012-01-01

    In eighth grade, students usually learn about forces in science class and linear relationships in math class, crucial topics that form the foundation for further study in science and engineering. An activity that links these two fundamental concepts involves measuring the distance a spring stretches as a function of how much weight is suspended…

  14. Spring-loaded polymeric gel actuators

    DOEpatents

    Shahinpoor, Mohsen

    1995-01-01

    Spring-loaded electrically controllable polymeric gel actuators are disclosed. The polymeric gels can be polyvinyl alcohol, polyacrylic acid, or polyacrylamide, and are contained in an electrolytic solvent bath such as water plus acetone. The action of the gel is mechanically biased, allowing the expansive and contractile forces to be optimized for specific applications.

  15. University Center Surveys, Spring 2001. Report.

    ERIC Educational Resources Information Center

    Gribbons, Barry C; Meuschke, Daylene M; Dixon, P. Scott

    The office of Institutional Development and Technology at the Santa Clarita Community College District, California, conducted surveys of Santa Clarita Valley (SCV) Residents and Santa Clarita Valley business executives during the Spring 2001 semester to assess the advanced training and degree program needs for the proposed University Center.…

  16. OATYC Journal, Fall 1990-Spring 1991.

    ERIC Educational Resources Information Center

    Fullen, Jim, Ed.

    1991-01-01

    Published by the Ohio Association of Two-Year Colleges, the "OATYC Journal" is designed to provide a medium for sharing concepts, methods, and findings relevant to the classroom, and an open forum for the discussion and review of problems. This 16th volume of the journal, consisting of the fall 1990 and spring 1991 issues, contains the…

  17. Campus Climate Student Survey, Spring 1994.

    ERIC Educational Resources Information Center

    San Diego Community Coll. District, CA. Research and Planning.

    A study was conducted at the San Diego Community College District (SDCCD) in California to assess students' perceptions of the campus climate and their college experience. A 65-item questionnaire was administered in-class to a 10% random sample of the spring 1994 student population, and a shorter version of the survey instrument had been included…

  18. Magnetically Coupled Magnet-Spring Oscillators

    ERIC Educational Resources Information Center

    Donoso, G.; Ladera, C. L.; Martin, P.

    2010-01-01

    A system of two magnets hung from two vertical springs and oscillating in the hollows of a pair of coils connected in series is a new, interesting and useful example of coupled oscillators. The electromagnetically coupled oscillations of these oscillators are experimentally and theoretically studied. Its coupling is electromagnetic instead of…

  19. A quantitative approach to spring hydrograph decomposition

    NASA Astrophysics Data System (ADS)

    Kovács, Attila; Perrochet, Pierre

    2008-04-01

    SummaryA combined analytical-numerical study for the characterization of spring hydrographs is presented. Two-dimensional analytical solutions for diffusive flux from rectangular blocks of arbitrary shape facilitate a quantitative characterization of exponential hydrograph components. Together with analytical solutions for block discharge, a systematic analysis of numerically simulated spring hydrographs of synthetic karst systems provides an insight into karst hydrodynamics. Different hydrograph components do not represent different classes of rock permeability. Hydrographs of individual homogeneous blocks can be decomposed into several exponential components. Discharge hydrographs of symmetric rectangular blocks can be reconstructed by the sum of only three exponential components. Increasing block asymmetry results in an increasing number of exponential components contributing significantly to total discharge. Spring hydrographs represent a sum of individual block discharges originating from diffuse infiltration and conduit discharge originating from concentrated recharge. Beyond the inflection of the recession limb, a spring hydrograph can be decomposed in a similar manner to that of individual homogeneous blocks. The presented hydrograph analytical method facilitates the estimation of hydraulic and geometric parameters of karst hydrogeological systems.

  20. Evaporation of Topopah Spring tuff pore water

    SciTech Connect

    Dibley, M J; Knauss, K G; Rosenberg, N D

    1999-09-10

    We report on the results to date for experiments on the evaporative chemical evolution of a CaSO, rich water representative of Topopah Spring Tuff porewater from Yucca Mountain. Data include anion and cation analysis and qualitative mineral identification for a series of open system experiments, with and without crushed tuff present, conducted at sub-boiling temperatures.

  1. University Union Student Preference Survey Spring 1986.

    ERIC Educational Resources Information Center

    Allen, David F.

    The University of North Carolina at Wilmington administered a 1986 University Union Spring Survey to 404 residential and nonresidential students to monitor student preferences and to evaluate their satisfaction with selected aspects of services and programs within the student union. The results revealed that students considered notices in their…

  2. Spring 1991 Higher Education Enrollment Information.

    ERIC Educational Resources Information Center

    South Dakota Board of Regents, Pierre.

    This report details higher education enrollment in South Dakota colleges and universities as of the close of the second week of the 1991 spring term. The tables present data on headcount and full-time equivalent enrollment for public and private institutions; compare 1991 to 1990 figures; and provide data on various categories of students by…

  3. [History of hot spring bath treatment in China].

    PubMed

    Hao, Wanpeng; Wang, Xiaojun; Xiang, Yinghong; Gu Li, A Man; Li, Ming; Zhang, Xin

    2011-07-01

    As early as the 7th century B.C. (Western Zhou Dynasty), there is a recording as 'spring which contains sulfur could treat disease' on the Wentang Stele written by WANG Bao. Wenquan Fu written by ZHANG Heng in the Easten Han Dynasty also mentioned hot spring bath treatment. The distribution of hot springs in China has been summarized by LI Daoyuan in the Northern Wei Dynasty in his Shuijingzhu which recorded hot springs in 41 places and interpreted the definition of hot spring. Bencao Shiyi (by CHEN Cangqi, Tang Dynasty) discussed the formation of and indications for hot springs. HU Zai in the Song Dynasty pointed out distinguishing hot springs according to water quality in his book Yuyin Conghua. TANG Shenwei in the Song Dynasty noted in Jingshi Zhenglei Beiji Bencao that hot spring bath treatment should be combined with diet. Shiwu Bencao (Ming Dynasty) classified hot springs into sulfur springs, arsenicum springs, cinnabar springs, aluminite springs, etc. and pointed out their individual indications. Geologists did not start the work on distribution and water quality analysis of hot springs until the first half of the 20th century. There are 972 hot springs in Wenquan Jiyao (written by geologist ZHANG Hongzhao and published in 1956). In July 1982, the First National Geothermal Conference was held and it reported that there were more than 2600 hot springs in China. Since the second half of the 20th century, hot spring sanatoriums and rehabilitation centers have been established, which promoted the development of hot spring bath treatment.

  4. How to Run a Meeting

    ERIC Educational Resources Information Center

    Jay, Antony

    1976-01-01

    Offers guidelines on how to correct things that go wrong in meetings. Discusses functions of a meeting, distinctions in size and type of meetings, the chairman's role, defining meeting objectives, making preparations, and conducting a meeting that will meet its objectives. (Author/JG)

  5. 19th JANNAF Safety and Environmental Protection Subcommittee Meeting. Volume 1

    NASA Technical Reports Server (NTRS)

    Cocchiaro, J. E. (Editor); Becker, D. L. (Editor)

    2002-01-01

    This volume, the first of two volumes, is a compilation of 22 unclassified/unlimited technical papers presented at the 19th Joint Army-Navy-NASA-Air Force (JANNAF) Safety & Environmental Protection Subcommittee Meeting. The meeting was held 18-21 March 2002 at the Sheraton Colorado Springs Hotel, Colorado Springs, Colorado. Topics covered include green energetic materials and life cycle pollution prevention; space launch range safety; propellant/munitions demilitarization, recycling, and reuse: and environmental and occupational health aspects of propellants and energetic materials.

  6. 19th JANNAF Safety and Environmental Protection Subcommittee Meeting. Volume 1

    NASA Technical Reports Server (NTRS)

    Cocchiaro, J. E. (Editor); Becker, D. L. (Editor)

    2002-01-01

    This volume, the first of two volumes, is a compilation of 22 unclassified/unlimited technical papers presented at the 19th Joint Army-Navy-NASA-Air Force (JANNAF) Safety & Environmental Protection Subcommittee Meeting. The meeting was held 18-21 March 2002 at the Sheraton Colorado Springs Hotel, Colorado Springs, Colorado. Topics covered include green energetic materials and life cycle pollution prevention; space launch range safety; propellant/munitions demilitarization, recycling, and reuse: and environmental and occupational health aspects of propellants and energetic materials.

  7. Strategies for effective meetings.

    PubMed

    Gerwick, Michele A

    2013-04-01

    This article provides basic strategies for conducting effective meetings and providing committee chairs and members with a sense of accomplishment. Health care professionals can become easily frustrated regarding the need to attend meetings. They may perceive that attending a meeting is a waste of their valuable time, that nothing is ever accomplished, and that their input is not valued. Committee leaders need to use effective strategies to enhance each committee member's sense of accomplishment. Copyright 2013, SLACK Incorporated.

  8. Borehole Sonar Investigations at Idaho Springs, Colorado and Manatee Springs, Florida.

    DTIC Science & Technology

    1982-02-01

    in transmission range the SX-8 pulse-echo sonar did not provide useful tun- nel location data. All data from all tests were recorded on magnetic ...files from the borehole survey conlucted at Idaho Springs. Data have been reproduced from tle dati recorded on magnetic diskettes. The control computer...projected anamoly centerlines. .45- IDAHO SPRINGS LOOKING EASTWARD (TOWARD THE PORTAL) HOLE 7 HOLE 6 139. * 139 1420 e 142 1450 * 145 148. e* 148 154

  9. Manufacturing methods for machining spring ends parallel at loaded length

    NASA Technical Reports Server (NTRS)

    Hinke, Patrick Thomas (Inventor); Benson, Dwayne M. (Inventor); Atkins, Donald J. (Inventor)

    1993-01-01

    A first end surface of a coiled compression spring at its relaxed length is machined to a plane transverse to the spring axis. The spring is then placed in a press structure having first and second opposed planar support surfaces, with the machined spring end surface bearing against the first support surface, the unmachined spring end surface bearing against a planar first surface of a lateral force compensation member, and an opposite, generally spherically curved surface of the compensation member bearing against the second press structure support surface. The spring is then compressed generally to its loaded length, and a circumferentially spaced series of marks, lying in a plane parallel to the second press structure support surface, are formed on the spring coil on which the second spring end surface lies. The spring is then removed from the press structure, and the second spring end surface is machined to the mark plane. When the spring is subsequently compressed to its loaded length the precisely parallel relationship between the machined spring end surfaces substantially eliminates undesirable lateral deflection of the spring.

  10. Manufacturing methods for machining spring ends parallel at loaded length

    NASA Technical Reports Server (NTRS)

    Hinke, Patrick Thomas (Inventor); Benson, Dwayne M. (Inventor); Atkins, Donald J. (Inventor)

    1995-01-01

    A first end surface of a coiled compression spring at its relaxed length is machined to a plane transverse to the spring axis. The spring is then placed in a press structure having first and second opposed planar support surfaces, with the machined spring end surface bearing against the first support surface, the unmachined spring end surface bearing against a planar first surface of a lateral force compensation member, and an opposite, generally spherically curved surface of the compensation member bearing against the second press structure support surface. The spring is then compressed generally to its loaded length, and a circumferentially spaced series of marks, lying in a plane parallel to the second press structure support surface, are formed on the spring coil on which the second spring end surface lies. The spring is then removed from the press structure, and the second spring end surface is machined to the mark plane. When the spring is subsequently compressed to its loaded length the precisely parallel relationship between the machined spring end surfaces substantially eliminates undesirable lateral deflection of the spring.

  11. Phenological changes in bamboo carbohydrates explain the preference for culm over leaves by giant pandas (Ailuropoda melanoleuca) during spring

    PubMed Central

    Knott, Katrina K.; Christian, Amelia L.; Falcone, Josephine F.; Vance, Carrie K.; Bauer, Laura L.; Fahey, George C.; Kouba, Andrew J.

    2017-01-01

    Seasonal changes in the foodscape force herbivores to select different plant species or plant parts to meet nutritional requirements. We examined whether the search for calorie-rich carbohydrates explained giant panda’s selection for bamboo culm over leaves during spring. Leaves and culms were collected from four Phyllostachys bamboos (P. aurea, P. aureosulcata, P. glauca, and P. nuda) once per month over 18–27 months. Monthly changes in annual plant part nutrients were examined, and compared to seasonal foraging behaviors of captive giant pandas. Although total fiber was greater (p<0.0001) in culm (85.6 ± 0.5%) than leaves (55.3 ± 0.4%) throughout the year, culm fiber was at its lowest in spring (79–85%) when culm selection by giant pandas exceeded 70% of their overall diet. Culm starch also was greatest (p = 0.044) during spring (5.5 ± 1.1%) and 2.5-fold the percentage of starch in leaves (2.2 ± 0.6%). The free sugars in spring culm consisted of a high proportion of glucose (35%) and fructose (47%), whereas sucrose made up 42% of the total free sugar content of spring leaves. Bound sugars in culm consisted of 60% glucose and 38% xylose likely representative of hemicellulose. The concentrations of bound sugars (hemicelluloses) in spring culms (543.7 ± 13.0 mg/g) was greater (p<0.001) than in leaves (373.0 ± 14.8 mg/g). These data help explain a long-standing question in giant panda foraging ecology: why consume the plant part with the lowest protein and fat during the energetically intensive spring breeding season? Giant pandas likely prefer spring culm that contains abundant mono- and polysaccharides made more bioavailable as a result of reduced fiber content. These data suggest that phenological changes in bamboo plant part nutrition drive foraging decisions by giant pandas. PMID:28614359

  12. Phenological changes in bamboo carbohydrates explain the preference for culm over leaves by giant pandas (Ailuropoda melanoleuca) during spring.

    PubMed

    Knott, Katrina K; Christian, Amelia L; Falcone, Josephine F; Vance, Carrie K; Bauer, Laura L; Fahey, George C; Kouba, Andrew J

    2017-01-01

    Seasonal changes in the foodscape force herbivores to select different plant species or plant parts to meet nutritional requirements. We examined whether the search for calorie-rich carbohydrates explained giant panda's selection for bamboo culm over leaves during spring. Leaves and culms were collected from four Phyllostachys bamboos (P. aurea, P. aureosulcata, P. glauca, and P. nuda) once per month over 18-27 months. Monthly changes in annual plant part nutrients were examined, and compared to seasonal foraging behaviors of captive giant pandas. Although total fiber was greater (p<0.0001) in culm (85.6 ± 0.5%) than leaves (55.3 ± 0.4%) throughout the year, culm fiber was at its lowest in spring (79-85%) when culm selection by giant pandas exceeded 70% of their overall diet. Culm starch also was greatest (p = 0.044) during spring (5.5 ± 1.1%) and 2.5-fold the percentage of starch in leaves (2.2 ± 0.6%). The free sugars in spring culm consisted of a high proportion of glucose (35%) and fructose (47%), whereas sucrose made up 42% of the total free sugar content of spring leaves. Bound sugars in culm consisted of 60% glucose and 38% xylose likely representative of hemicellulose. The concentrations of bound sugars (hemicelluloses) in spring culms (543.7 ± 13.0 mg/g) was greater (p<0.001) than in leaves (373.0 ± 14.8 mg/g). These data help explain a long-standing question in giant panda foraging ecology: why consume the plant part with the lowest protein and fat during the energetically intensive spring breeding season? Giant pandas likely prefer spring culm that contains abundant mono- and polysaccharides made more bioavailable as a result of reduced fiber content. These data suggest that phenological changes in bamboo plant part nutrition drive foraging decisions by giant pandas.

  13. Carbamazepine breakthrough as indicator for specific vulnerability of karst springs: application on the Jeita spring, Lebanon

    NASA Astrophysics Data System (ADS)

    Doummar, J.; Geyer, T.; Noedler, K.; Sauter, M.

    2014-12-01

    The pharmaceutical drug carbamazepine is considered an effective wastewater marker. The varying concentration of this drug was analyzed in a mature karst spring following a precipitation event. The results show that carbamazepine is an indicator of wastewater entering the system through a fast flow pathway, leading to an increase of the drug concentrations in spring water shortly after a strong rainfall event. The analysis of the breakthrough curve of carbamazepine along with the electrical conductivity signal and major ions chemograph allowed the development of a conceptual model for precipitation event-based flow and transport in the investigated karst system. Furthermore the amount of newly recharged water and the mass of carbamazepine reaching the aquifer system during the event could be estimated using a simple mixing approach. The distance between the karst spring and the potential carbamazepine source was estimated by the combination of results from artificial tracer tests and the carbamazepine breakthrough curve. The assessment of spring responses to precipitation event using persistent drugs like carbamazepine helps assess the effect of waste water contamination at a spring and gives therefore insights to the specific vulnerability of a karst spring.

  14. Chemical and isotopic composition of water from thermal springs and mineral springs of Washington

    USGS Publications Warehouse

    Mariner, R.H.; Presser, T.S.; Evans, William C.

    1982-01-01

    Water from thermal springs of Washington range in chemical composition from dilute NaHC03, to moderately saline C02-charged NaHC03-Cl waters. St. Martin 's Hot Spring which discharges a slightly saline NaCl water, is the notable exception. Mineral springs generally discharge a moderately saline C02-charged NaHC03-Cl water. The dilute Na-HC03 waters are generally associated with granite. The warm to hot waters charged with C02 issue on or near the large stratovolcanoes and many of the mineral springs also occur near the large volcanoes. The dilute waters have oxygen isotopic compositions which indicate relatively little water-rock exchange. The C02-charged waters are usually more enriched in oxygen-18 due to more extensive water-rock reaction. Carbon-13 in the C02-charged thermal waters is more depleted (-10 to -12 permil) than in the cold C02-charged soda springs (-2 to -8 permil) which are also scattered throughout the Cascades. The hot and cold C02-charged waters are supersaturated with respect to CaC03, but only the hot springs are actively depositing CaC03. Baker, Gamma, Sulphur , and Ohanapecosh seem to be associated with thermal aquifers of more than 100C. (USGS)

  15. G.I. Joe Meets Barbie, Software Engineer Meets Caregiver: Males and Females in B.C.'s Public Schools and Beyond. BCTF Research Report.

    ERIC Educational Resources Information Center

    Schaefer, Anne C.

    Following a referral from the March 2000 Annual General Meeting of the British Columbia (B.C.) Teachers' Federation, the Spring 2000 Representative Assembly passed a motion that recommended research be collected, conducted, and disseminated on the current status of students in the province. This research report identifies current information on…

  16. Mechanical behaviour of tape springs used in the deployment of reflectors around a solar panel

    NASA Astrophysics Data System (ADS)

    Dewalque, Florence; Collette, Jean-Paul; Brüls, Olivier

    2016-06-01

    In order to increase the production of power on small satellites, solar panels are commonly deployed and, in some cases, reflectors are added to improve the concentration factor on solar cells. In this work, reflectors are deployed by the means of compliant mechanisms known as tape springs. Their attractive characteristics are, among others, their passive behaviour, their self-locking capacity, their elastic deformations and their robustness. However, their mechanical behaviour is highly nonlinear and requires thorough analyses in order to develop predictive numerical models. It is shown here through parametric studies that the nonlinear behaviour of a tape spring is mainly governed by its geometry. Thus, for each specific application, its dimensions can be determined in order to minimise two critical features: the maximum stress affecting the structure and the maximum motion amplitude during deployment. In this paper, an optimisation procedure is proposed to meet these requirements.

  17. EDITORIAL: Nano Meets Spectroscopy Nano Meets Spectroscopy

    NASA Astrophysics Data System (ADS)

    Birch, David J. S.

    2012-08-01

    The multidisciplinary two-day Nano Meets Spectroscopy (NMS) event was held at the National Physical Laboratory (NPL), Teddington, UK, in September 2011. The event was planned from the outset to be at the interface of several areas—in particular, spectroscopy and nanoscience, and to bring together topics and people with different approaches to achieving common goals in biomolecular science. Hence the meeting cut across traditional boundaries and brought together researchers using diverse techniques, particularly fluorescence and Raman spectroscopy. Despite engaging common problems, these techniques are frequently seen as mutually exclusive with the two communities rarely interacting at conferences. The meeting was widely seen to have lived up to its billing in good measure. It attracted the maximum capacity of ~120 participants, including 22 distinguished speakers (9 from outside the UK), over 50 posters and a vibrant corporate exhibition comprising 10 leading instrument companies and IOP Publishing. The organizers were Professor David Birch (Chair), Dr Karen Faulds and Professor Duncan Graham of the University of Strathclyde, Professor Cait MacPhee of the University of Edinburgh and Dr Alex Knight of NPL. The event was sponsored by the European Science Foundation, the Institute of Physics, the Royal Society of Chemistry, NPL and the Scottish Universities Physics Alliance. The full programme and abstracts are available at http://sensor.phys.strath.ac.uk/nms/program.php. The programme was quite ambitious in terms of the breadth and depth of scope. The interdisciplinary and synergistic concept of 'X meets Y' played well, cross-fertilization between different fields often being a source of inspiration and progress. Fluorescence and Raman spectroscopy provided the core, but the meeting had little repetition and also attracted contributions on more specialist techniques such as CARS, super-resolution, single molecule and chiral methods. In terms of application the

  18. 5. FLOW METER AND PIPING SHOWING CONNECTIONS. Hot Springs ...

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

    5. FLOW METER AND PIPING SHOWING CONNECTIONS. - Hot Springs National Park Bathhouse Row, Maurice Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  19. THERMALWATER FLOW METER. Hot Springs National Park, Bathhouse Row, ...

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

    THERMAL-WATER FLOW METER. - Hot Springs National Park, Bathhouse Row, Superior Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  20. DETAIL OF THERMALWATER FLOW METER. Hot Springs National Park, ...

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

    DETAIL OF THERMAL-WATER FLOW METER. - Hot Springs National Park, Bathhouse Row, Superior Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  1. Armored spring-core superconducting cable and method of construction

    DOEpatents

    McIntyre, Peter M.; Soika, Rainer H.

    2002-01-01

    An armored spring-core superconducting cable (12) is provided. The armored spring-core superconducting cable (12) may include a spring-core (20), at least one superconducting strand (24) wound onto the spring-core (20), and an armored shell (22) that encases the superconducting strands (24). The spring-core (20) is generally a perforated tube that allows purge gases and cryogenic liquids to be circulated through the armored superconducting cable (12), as well as managing the internal stresses within the armored spring-core superconducting cable (12). The armored shell (22) manages the external stresses of the armored spring-core superconducting cable (12) to protect the fragile superconducting strands (24). The armored spring-core superconducting cable (12) may also include a conductive jacket (34) formed outwardly of the armored shell (22).

  2. 4. VACUUM PUMP (CONDENSATE RETURN). Hot Springs National Park, ...

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

    4. VACUUM PUMP (CONDENSATE RETURN). - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  3. VACUUM PUMP (CONDENSATE RETURN). Hot Springs National Park, Bathhouse ...

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

    VACUUM PUMP (CONDENSATE RETURN). - Hot Springs National Park, Bathhouse Row, Hale Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  4. 2. ELEVATOR DRIVE, CABLE MOTOR, CIRCUIT BOX, Hot Springs ...

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

    2. ELEVATOR DRIVE, CABLE MOTOR, CIRCUIT BOX, - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  5. 1. TEMPERING COILS IN WIND TUNNEL. Hot Springs National ...

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

    1. TEMPERING COILS IN WIND TUNNEL. - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  6. 9. THERMOSTAT IN LADIES MASSAGE ROOM. Hot Springs National ...

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

    9. THERMOSTAT IN LADIES MASSAGE ROOM. - Hot Springs National Park, Bathhouse Row, Lamar Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  7. 11. GENERAL VIEW OF MEN'S BATH HALL. Hot Springs ...

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

    11. GENERAL VIEW OF MEN'S BATH HALL. - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  8. 10. NEEDLE SHOWER IN COOLING ROOM. Hot Springs National ...

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

    10. NEEDLE SHOWER IN COOLING ROOM. - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  9. 5. HORIZONTAL COOLEDWATER STORAGE TANKS. Hot Springs National Park, ...

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

    5. HORIZONTAL COOLED-WATER STORAGE TANKS. - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  10. 7. COOLING TOWER FROM ROOF. Hot Springs National Park, ...

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

    7. COOLING TOWER FROM ROOF. - Hot Springs National Park, Bathhouse Row, Quapaw Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  11. 1. BLOWER (EXTERIOR CONFIGURATION). Hot Springs National Park Bathhouse ...

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

    1. BLOWER (EXTERIOR CONFIGURATION). - Hot Springs National Park Bathhouse Row, Maurice Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  12. BLOWER MOTOR & DRIVE WHEEL. Hot Springs National Park, ...

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

    BLOWER MOTOR & DRIVE WHEEL. - Hot Springs National Park, Bathhouse Row, Superior Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  13. 9. NEEDLE SHOWER IN MEN'S PACK ROOM. Hot Springs ...

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

    9. NEEDLE SHOWER IN MEN'S PACK ROOM. - Hot Springs National Park Bathhouse Row, Maurice Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  14. 2. PADDLE FAN IN PLENUM INTERIOR. Hot Springs National ...

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

    2. PADDLE FAN IN PLENUM INTERIOR. - Hot Springs National Park Bathhouse Row, Maurice Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  15. 12. ELEVATOR DOORS AND CAB. Hot Springs National Park, ...

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

    12. ELEVATOR DOORS AND CAB. - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  16. 5. DISCONNECTED COMPRESSOR MOTOR. Hot Springs National Park, Bathhouse ...

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

    5. DISCONNECTED COMPRESSOR MOTOR. - Hot Springs National Park, Bathhouse Row, Quapaw Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  17. 11. INTERIOR OF THERMOSTAT. Hot Springs National Park Bathhouse ...

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

    11. INTERIOR OF THERMOSTAT. - Hot Springs National Park Bathhouse Row, Maurice Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  18. 13. DETAIL OF INTERIOR OF ELEVATOR SHAFT. Hot Springs ...

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

    13. DETAIL OF INTERIOR OF ELEVATOR SHAFT. - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  19. 4. DETAIL OF ELEVATOR DRUM AND DRIVE. Hot Springs ...

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

    4. DETAIL OF ELEVATOR DRUM AND DRIVE. - Hot Springs National Park, Bathhouse Row, Fordyce Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  20. 2. INDUSTRIAL IRON (LAUNDRY AREA IN BACKGROUND). Hot Springs ...

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

    2. INDUSTRIAL IRON (LAUNDRY AREA IN BACKGROUND). - Hot Springs National Park, Bathhouse Row, Quapaw Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  1. 2. SECTIONAL BOILER '#4 IDEAL RED FLASH.' Hot Springs ...

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

    2. SECTIONAL BOILER '#4 IDEAL RED FLASH.' - Hot Springs National Park, Bathhouse Row, Ozark Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  2. 1. INDUSTRIAL IRON (WORKING SIDE). Hot Springs National Park, ...

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

    1. INDUSTRIAL IRON (WORKING SIDE). - Hot Springs National Park, Bathhouse Row, Quapaw Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  3. 2. PLENUM WALL, SHOWING PNEUMATIC TUBES. Hot Springs National ...

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

    2. PLENUM WALL, SHOWING PNEUMATIC TUBES. - Hot Springs National Park, Bathhouse Row, Lamar Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  4. 8. HUBBARD TUB IN MEN'S BATH HALL. Hot Springs ...

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

    8. HUBBARD TUB IN MEN'S BATH HALL. - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  5. 10. NEEDLE SHOWER IN WOMEN'S PACK ROOM. Hot Springs ...

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

    10. NEEDLE SHOWER IN WOMEN'S PACK ROOM. - Hot Springs National Park, Bathhouse Row, Lamar Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  6. 7. BOILERS (MARINE TYPE). Hot Springs National Park, Bathhouse ...

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

    7. BOILERS (MARINE TYPE). - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  7. 6. HOT AIR PORTION OF DAMPERS. Hot Springs National ...

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

    6. HOT AIR PORTION OF DAMPERS. - Hot Springs National Park, Bathhouse Row, Lamar Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  8. 9. VAPOR STALL IN MEN'S BATH HALL. Hot Springs ...

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

    9. VAPOR STALL IN MEN'S BATH HALL. - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  9. 10. TYPICAL BATH IN MEN'S BATH HALL. Hot Springs ...

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

    10. TYPICAL BATH IN MEN'S BATH HALL. - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  10. 6. UNIT VENTILATOR, WOMEN'S COOLING ROOM. Hot Springs National ...

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

    6. UNIT VENTILATOR, WOMEN'S COOLING ROOM. - Hot Springs National Park, Bathhouse Row, Ozark Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 mile north of U.S. Highway 70, Hot Springs, Garland County, AR

  11. 3. BLOWER FAN, MOTOR AND DRIVE. Hot Springs National ...

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

    3. BLOWER FAN, MOTOR AND DRIVE. - Hot Springs National Park, Bathhouse Row, Buckstaff Bathhouse: Mechanical & Piping Systems, State Highway 7, 1 Mile North of U.S. Highway 70, Hot Springs, Garland County, AR

  12. 21 CFR 872.4475 - Spring-powered jet injector.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    .... A spring-powered jet injector is a syringe device intended to administer a local anesthetic. The syringe is powered by a spring mechanism which provides the pressure to force the anesthetic out of the...

  13. 21 CFR 872.4475 - Spring-powered jet injector.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    .... A spring-powered jet injector is a syringe device intended to administer a local anesthetic. The syringe is powered by a spring mechanism which provides the pressure to force the anesthetic out of the...

  14. 21 CFR 872.4475 - Spring-powered jet injector.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    .... A spring-powered jet injector is a syringe device intended to administer a local anesthetic. The syringe is powered by a spring mechanism which provides the pressure to force the anesthetic out of the...

  15. OVERVIEW OF GOLD HILL MILL, ROAD, AND WARM SPRINGS CAMP ...

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

    OVERVIEW OF GOLD HILL MILL, ROAD, AND WARM SPRINGS CAMP BUILDINGS, LOOKING SOUTH SOUTHEAST. THE FUNCTION OF THE FLAT AREA AT CENTER RIGHT IS UNKNOWN. - Gold Hill Mill, Warm Spring Canyon Road, Death Valley Junction, Inyo County, CA

  16. Contact-spring forming machine for flat conductor cable receptacles

    NASA Technical Reports Server (NTRS)

    Angele, W.; Martineck, H. G.

    1968-01-01

    Machine tool produces beryllium-copper contact springs for FCC /flat conductor cable/ feed-through receptacles. The springs are heat-treated and plated to impart the required electrical contact properties.

  17. Retroviruses 2004: review of the 2004 Cold Spring Harbor Retroviruses Conference.

    PubMed

    Freed, Eric O; Ross, Susan R

    2004-09-09

    For the past several decades, retrovirologists from around the world have gathered in late May at the Cold Spring Harbor Laboratories in New York to present their studies in formal talks and posters, and to discuss their ongoing research informally at the bar or on the beach. As organizers of the 2004 Cold Spring Harbor Retroviruses Conference, we have been asked by the editors of Retrovirology to prepare a review of the meeting for publication on-line. Our goal in this review is not to provide a detailed description of data presented at the meeting but rather to highlight some of the significant developments reported this year. The review is structured in a manner that parallels the organization of the meeting; beginning with the entry phase of the replication cycle, proceeding with post-entry events, assembly and release, integration, reverse transcription, pathogenesis/host factors, RNA-related events (transcription, processing, export, and packaging) and finishing with antivirals. While the most striking developments this year involved post-entry events and assembly/release, significant progress was made towards elucidating a number of aspects of the retroviral replication cycle.

  18. Holding Effective Board Meetings.

    ERIC Educational Resources Information Center

    American Association of School Administrators, Arlington, VA.

    Advice and tested methods for management of meetings from superintendents and board members are combined in this reference book on conducting effective school board meetings. Intended for a wide readership, it contains three chapters and an exhibit section comprising over one-third of the document. Following a brief introduction, chapter 1,…

  19. RAS Ordinary Meetings

    NASA Astrophysics Data System (ADS)

    2014-02-01

    At the October 2013 meeting the President presented the Gold Medal to Prof. Chris Chapman, the Eddington Medal to Prof. James Binney, and Winton Capital Award to Dr Katherine Joy. Prof. Bob White gave the Harold Jeffreys Lecture on "Building the dynamic crust of Iceland by rifting and volcanism". At the November meeting, Prof. Eline Tolstoy gave the George Darwin Lecture on "Galactic palaeontology".

  20. Meeting Making Manual.

    ERIC Educational Resources Information Center

    Smith, G. Rogers

    Resources for planning adult education events are provided in this manual. Four major sections, with subdivisions, are presented: (1) Pre-meeting Preparation (the planning committee, goals and objectives, facilities and equipment, and leadership); (2) The Meeting (orientation and opening, working toward the objectives, people factors, and…

  1. 78 FR 38009 - Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-25

    ... ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD Meetings AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of meetings. SUMMARY: The Architectural and... on Frontier Issues 4:30-5:00--Ad Hoc Committee on Accessible Design in Education Wednesday, July 10...

  2. Electronic Feedback Control of Mass-Spring Systems.

    DTIC Science & Technology

    1985-09-01

    detectors. However, the conventional performance is limited by the size, the stiffness and Q of the spring. In order to measure the system ground motion...reduce the different modes of a spring. The sensitivity of the electronic circuit is limited by the thermal noise. Consequently, this thesis introduces a...that obtainable with air tables. However, it is limited by the size of the S " spring. For instance, if the resonant frequency is at 2 Hz, the spring

  3. Spring stopover food resources and land use patterns of Rocky Mountain population Sandhill Carnes in the San Luis Valley, Colorado

    USGS Publications Warehouse

    Laubhan, M.K.; Gammonley, J.H.; Dolton, D.D.

    2001-01-01

    Virtually the entire Rocky Mountain population (RMP) of greater sandhill cranes uses the San Luis Valley (SLV) of Colorado as a spring stopover area. RMP cranes in the SLV depend on unharvested grain provided on Monte Vista National Wildlife Refuge, and on waste grain in privately owned fields. In recent years, however, fall tillage and irrigation of grain fields has become increasingly widespread in the SLV. These changes in farming practices have resulted in an unmeasured reduction in waste grain availability for RMP cranes during spring and have prompted concern over whether current or projected foods are adequate to meet spring demands of the target population size of 18,000-20,000 RMP cranesa?|

  4. Cavity optomechanical spring sensing of single molecules

    PubMed Central

    Yu, Wenyan; Jiang, Wei C; Lin, Qiang; Lu, Tao

    2016-01-01

    Label-free bio-sensing is a critical functionality underlying a variety of health- and security-related applications. Micro-/nano-photonic devices are well suited for this purpose and have emerged as promising platforms in recent years. Here we propose and demonstrate an approach that utilizes the optical spring effect in a high-Q coherent optomechanical oscillator to dramatically enhance the sensing resolution by orders of magnitude compared with conventional approaches, allowing us to detect single bovine serum albumin proteins with a molecular weight of 66 kDa at a signal-to-noise ratio of 16.8. The unique optical spring sensing approach opens up a distinctive avenue that not only enables biomolecule sensing and recognition at individual level, but is also of great promise for broad physical sensing applications that rely on sensitive detection of optical cavity resonance shift to probe external physical parameters. PMID:27460277

  5. Cavity optomechanical spring sensing of single molecules

    NASA Astrophysics Data System (ADS)

    Yu, Wenyan; Jiang, Wei C.; Lin, Qiang; Lu, Tao

    2016-07-01

    Label-free bio-sensing is a critical functionality underlying a variety of health- and security-related applications. Micro-/nano-photonic devices are well suited for this purpose and have emerged as promising platforms in recent years. Here we propose and demonstrate an approach that utilizes the optical spring effect in a high-Q coherent optomechanical oscillator to dramatically enhance the sensing resolution by orders of magnitude compared with conventional approaches, allowing us to detect single bovine serum albumin proteins with a molecular weight of 66 kDa at a signal-to-noise ratio of 16.8. The unique optical spring sensing approach opens up a distinctive avenue that not only enables biomolecule sensing and recognition at individual level, but is also of great promise for broad physical sensing applications that rely on sensitive detection of optical cavity resonance shift to probe external physical parameters.

  6. Fractures and stresses in Bone Spring sandstones

    SciTech Connect

    Warpinski, N.R.; Sattler, A.R.; Lorenz, J.C.; Northrop, D.A.

    1992-06-01

    This project was a collaboration between Sandia National Laboratories and the Harvey E. Yates Company (Heyco), Roswell, NM, conducted under the auspices of Department of Energy's Oil Recovery Technology Partnership. The project applied Sandia perspectives on the effects of natural fractures, stress, and sedimentology for the stimulation and production of low permeability gas reservoirs to low permeability oil reservoirs, such as those typified by the Bone Spring sandstones of the Delaware Basin, southeast New Mexico. This report details the results and analyses obtained in 1990 from core, logs, stress, and other data taken from three additional development wells. An overall summary gives results from all five wells studied in this project in 1989--1990. Most of the results presented are believed to be new information for the Bone Spring sandstones.

  7. 76 FR 59454 - Sunshine Act Meeting; Notice of Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-26

    ... Sunshine Act Meeting; Notice of Public Meeting Notice is hereby given that the Railroad Retirement Board will hold a meeting on October 6, 2011, 10 a.m. at the Board's meeting room on the 8th floor of its headquarters building, 844 North Rush Street, Chicago, Illinois, 60611. The agenda for this meeting follows...

  8. Joint Force Quarterly. Number 30, Spring 2002

    DTIC Science & Technology

    2002-05-01

    some leading analysts, including Michael O’Hanlon, Colin Gray, and Paul Van Riper , dispute the existence of a definitive RMA. Van Riper challenges the...sufficient to put our defense orientation, posture, and transformation activities on the right track. — Charles F. Hawkins Historical Evaluation and...Army Transformation Office RETHINKING SO/LIC To the Editor—I read “Special Operations Forces after Kosovo” by Charles J. Dunlap, Jr. (JFQ, Spring

  9. Weapons Industry. Industry Study, Spring 2007

    DTIC Science & Technology

    2007-01-01

    information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources , gathering and...valid OMB control number. 1. REPORT DATE 2007 2. REPORT TYPE 3. DATES COVERED 00-00-2007 to 00-00-2007 4. TITLE AND SUBTITLE Spring 2007...production capability to include multiple sources and surge capacity. Action is required to ensure that a qualified and technically capable workforce is

  10. Deployable Hexapod Using Tape-Springs

    DTIC Science & Technology

    2005-07-13

    main advantages of this concept compared to classical hyper-stable telescope structures are: - a reduced volume during launch allowing large systems...The main advantages of a deployable and active telescope structure compared to classical hyperstable telescope structures are a reduced volume...developed and manufactured by IWF TÜ Braunschweig who already applied them to motorised applications. The steel tape-spring can be rolled in the coiling

  11. SPARKy-Spring Ankle with Regenerative Kinematics

    DTIC Science & Technology

    2011-09-01

    transtibial amputees at Arizona State University. A second subject has been recruited and a new socket has been manufactured. The second subject...Spring Loaded Inverted Pendulum model) works very well for walking. In the past, it was shown to work for running . 10 Figure 1: Normal...The refined SPARKy design uses the RE40 motor, roller screw robotic tendon and FS3000 keel. • Total Weight: 5 lbs not including socket • Box

  12. Joint Force Quarterly. Number 7, Spring 1995

    DTIC Science & Technology

    1995-02-01

    never again be confident in their relationship with the government. See Gregory Bateson , “The Cybernetics of ‘Self’: A The- ory of Alcoholism,” Steps to...Marie, Haiti. DOD ( Gregory S. Cinelli) 1407 Wilson 3/3/04 3:00 PM Page 55 56 JFQ / Spring 1995 different-sized staffs and capabilities). More- over...Press, 1985); Gregory Henderson, Korea: The Politics of the Vortex (Cambridge: Harvard Univer- sity Press, 1968); James Merrill, Korea: The Peninsular

  13. Spring-Loaded-Bolt Locking Device

    NASA Technical Reports Server (NTRS)

    Calco, Frank S.

    1990-01-01

    Locking device designed to clamp small objects temporarily onto object or vehicle that accelerates. Intended to be used in place of toggle clamp, which can snap out of lock during excessive shock or vibration or because of accidental contact of person or object with toggle locking handle. Device looks and operates somewhat like spring-loaded door bolt. Moderate vibrations do not cause accidental unlocking.

  14. 78 FR 40402 - Radio Broadcasting Services; Roaring Springs, Texas

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-05

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Roaring Springs, Texas AGENCY: Federal Communications... Channel 227A and deletes FM Channel 249A at Roaring Springs, Texas, and allots FM Channel 249C3 and... Act, see U.S.C. 801(a)(1)(A). The Bureau added Channel 249A at Roaring Springs, Texas to the FM Table...

  15. MOJAVE DESERT SPRING: THE AMPHIBIAN POINT OF VIEW

    EPA Science Inventory

    Numerous springs are scattered throughout the eastern Mojave Desert, most of which are concentrated near the bases of mountain ranges. Spring-fed wetlands in this region comprise nearly all the available habitat for amphibians. We surveyed 128 springs for amphibians and habitat t...

  16. 21 CFR 872.4475 - Spring-powered jet injector.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Spring-powered jet injector. 872.4475 Section 872...) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4475 Spring-powered jet injector. (a) Identification. A spring-powered jet injector is a syringe device intended to administer a local anesthetic. The...

  17. 21 CFR 872.4475 - Spring-powered jet injector.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Spring-powered jet injector. 872.4475 Section 872...) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4475 Spring-powered jet injector. (a) Identification. A spring-powered jet injector is a syringe device intended to administer a local anesthetic. The...

  18. 49 CFR 236.14 - Spring switch signal protection; requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Spring switch signal protection; requirements. 236... Rules and Instructions: All Systems General § 236.14 Spring switch signal protection; requirements. (a... track signaled for movements in only one direction through a spring switch in automatic block...

  19. 49 CFR 236.14 - Spring switch signal protection; requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Spring switch signal protection; requirements. 236... Rules and Instructions: All Systems General § 236.14 Spring switch signal protection; requirements. (a... track signaled for movements in only one direction through a spring switch in automatic block...

  20. Course Registration Report: University of Hawaii, Community Colleges, Spring 1983.

    ERIC Educational Resources Information Center

    Hawaii Univ., Honolulu. Office of Institutional Research and Analysis.

    Spring 1983 course registration data are presented for regular credit programs at the six Hawaii community colleges (i.e., Honolulu, Kapiolani, Kauai, Leeward, Maui, and Windward). Table 1 provides a course registration summary by campus, contrasting fall 1981, spring 1982, fall 1982, and spring 1983 data on numbers of courses, classes, and…

  1. Deceptively Simple Harmonic Motion: A Mass on a Spiral Spring.

    ERIC Educational Resources Information Center

    McDonald, F. Alan

    1980-01-01

    Discusses the oscillatory motion of a mass on a spiral (nonhelical) spring, and calculates the lowest eigenfrequency and the associated effective spring mass for a range of values of the attached mass. Analytic and numerical comparisons are made to the helical spring problem. (HM)

  2. Orthodontic spring guidance of bilateral mandibular distraction in rabbits.

    PubMed

    Yen, S L; Shang, W; Shuler, C; Yamashita, D D

    2001-10-01

    Although distraction osteogenesis can lengthen congenitally small mandibles, the distraction procedure can be difficult to control. To study the efficacy and safety of orthodontic spring guidance on bilateral mandibular distraction, an 8-mm anterior open bite was experimentally produced and corrected during bilateral mandibular distraction in rabbits. Orthodontic springs were attached to the anterior maxilla and mandible to redirect an ongoing distraction procedure. Sixteen rabbits underwent mandibular distraction: 6 rabbits received heavy springs (8 oz), 6 rabbits received light force springs (2 oz), and 4 rabbits served as control animals with anterior open bites without spring guidance. Nickel-titanium springs were applied during the last week of osseous distraction and the first week of consolidation. Distractors were left in place throughout a 2-month consolidation period. None of the animals developed fibrous union as a result of spring guidance. The 8-mm open bite did not close in the control group or in the light spring group after 2 weeks of spring wear or during the consolidation period. Heavy springs completely closed the experimental open bites within 2 weeks (P <.01, analysis of variance). Bite corrections did not change during the consolidation period. This study indicated that the addition of an orthodontic spring to a mandibular distraction procedure did not impair bone healing. With the distraction device in place, heavy spring forces redirected an ongoing mandibular distraction procedure and corrected an open bite, distraction side effect. Direct measurements, radiographic measurements, and tissue histologic factors described changes in segment position and shape of the distraction site.

  3. 3. SHOWING STREAM, STORE BUILDING (UPPER LEFT), SPRING HOUSE AND ...

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

    3. SHOWING STREAM, STORE BUILDING (UPPER LEFT), SPRING HOUSE AND BATH HOUSE (NEAR STREAM), SOUTHEAST FRONTS AND SOUTHWEST SIDES (4 x 5 negative; 5 x 7 print) - Salt Sulpher Springs, U.S. Route 219, Salt Sulphur Springs, Monroe County, WV

  4. 49 CFR 236.14 - Spring switch signal protection; requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Spring switch signal protection; requirements. 236... Rules and Instructions: All Systems General § 236.14 Spring switch signal protection; requirements. (a... track signaled for movements in only one direction through a spring switch in automatic block...

  5. 49 CFR 236.14 - Spring switch signal protection; requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Spring switch signal protection; requirements. 236... Rules and Instructions: All Systems General § 236.14 Spring switch signal protection; requirements. (a... track signaled for movements in only one direction through a spring switch in automatic block...

  6. 49 CFR 236.14 - Spring switch signal protection; requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Spring switch signal protection; requirements. 236... Rules and Instructions: All Systems General § 236.14 Spring switch signal protection; requirements. (a... track signaled for movements in only one direction through a spring switch in automatic block...

  7. 27 CFR 9.143 - Spring Mountain District.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Spring Mountain District... Spring Mountain District. (a) Name. The name of the viticultural area described in this section is “Spring Mountain District.” (b) Approved maps. The appropriate maps for determining the boundary of the...

  8. 27 CFR 9.143 - Spring Mountain District.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Spring Mountain District... Spring Mountain District. (a) Name. The name of the viticultural area described in this section is “Spring Mountain District.” (b) Approved maps. The appropriate maps for determining the boundary of the...

  9. 27 CFR 9.143 - Spring Mountain District.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Spring Mountain District... Spring Mountain District. (a) Name. The name of the viticultural area described in this section is “Spring Mountain District.” (b) Approved maps. The appropriate maps for determining the boundary of the...

  10. 27 CFR 9.143 - Spring Mountain District.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Spring Mountain District... Spring Mountain District. (a) Name. The name of the viticultural area described in this section is “Spring Mountain District.” (b) Approved maps. The appropriate maps for determining the boundary of the...

  11. 27 CFR 9.143 - Spring Mountain District.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Spring Mountain District... Spring Mountain District. (a) Name. The name of the viticultural area described in this section is “Spring Mountain District.” (b) Approved maps. The appropriate maps for determining the boundary of the...

  12. MOJAVE DESERT SPRING: THE AMPHIBIAN POINT OF VIEW

    EPA Science Inventory

    Numerous springs are scattered throughout the eastern Mojave Desert, most of which are concentrated near the bases of mountain ranges. Spring-fed wetlands in this region comprise nearly all the available habitat for amphibians. We surveyed 128 springs for amphibians and habitat t...

  13. Spring bloom onset in the Nordic Seas

    NASA Astrophysics Data System (ADS)

    Mignot, Alexandre; Ferrari, Raffaele; Mork, Kjell Arne

    2016-06-01

    The North Atlantic spring bloom is a massive annual growth event of marine phytoplankton, tiny free-floating algae that form the base of the ocean's food web and generates a large fraction of the global primary production of organic matter. The conditions that trigger the onset of the spring bloom in the Nordic Seas, at the northern edge of the North Atlantic, are studied using in situ data from six bio-optical floats released north of the Arctic Circle. It is often assumed that spring blooms start as soon as phytoplankton cells daily irradiance is sufficiently abundant that division rates exceed losses. The bio-optical float data instead suggest the tantalizing hypothesis that Nordic Seas blooms start when the photoperiod, the number of daily light hours experienced by phytoplankton, exceeds a critical value, independently of division rates. The photoperiod trigger may have developed at high latitudes where photosynthesis is impossible during polar nights and phytoplankton enters into a dormant stage in winter. While the first accumulation of biomass recorded by the bio-optical floats is consistent with the photoperiod hypothesis, it is possible that some biomass accumulation started before the critical photoperiod but at levels too low to be detected by the fluorometers. More precise observations are needed to test the photoperiod hypothesis.

  14. Rain-induced spring wheat harvest losses

    NASA Technical Reports Server (NTRS)

    Bauer, A.; Black, A. L. (Principal Investigator)

    1983-01-01

    When rain or a combination of rain and high humidity delay wheat harvest, losses can occur in grain yield and/or grain quality. Yield losses can result from shattering, from reduction in test weight, and in the case of windrowed grain, from rooting of sprouting grain at the soil: windrow contact. Losses in grain quality can result from reduction in test weight and from sprouting. Sprouting causes a degradation of grain proteins and starches, hence flour quality is reduced, and the grain price deteriorates to the value of feed grain. Although losses in grain yield and quality are rain-induced, these losses do not necessarily occur because a standing or windrowed crop is wetted by rain. Spike water concentration in hard red spring wheat must be increased to about 45-49% before sprouting is initiated in grain that has overcome dormancy. The time required to overcome this dormancy after the cultivar has dried to 12 to 14% water concentration differs with hard red spring cultivars. The effect of rain on threshing-ready standing and windrowed hard red spring wheat grain yeild and quality was evaluated. A goal was to develop the capability to forecast the extent of expected loss of grain yield and quality from specific climatic events that delay threshing.

  15. ANISOTROPY DETERMINATIONS IN EXCHANGE SPRING MAGNETS.

    SciTech Connect

    LEWIS,L.H.; HARLAND,C.L.

    2002-08-18

    Ferromagnetic nanocomposites, or ''exchange spring'' magnets, possess a nanoscaled microstructure that allows intergrain magnetic exchange forces to couple the constituent grains and alter the system's effective magnetic anisotropies. While the effects of the anisotropy alterations are clearly seen in macroscopic magnetic measurement, it is extremely difficult to determine the detailed effects of the system's exchange coupling, such as the interphase exchange length, the inherent domain wall widths or the effective anisotropies of the system. Clarification of these materials parameters may be obtained from the ''micromagnetic'' phenomenological model, where the assumption of magnetic reversal initiating in the magnetically-soft regions of the exchange-spring maqet is explicitly included. This approach differs from that typically applied by other researchers and allows a quantitative estimate of the effective anisotropies of an exchange spring system. Hysteresis loops measured on well-characterized nanocomposite alloys based on the composition Nd{sub 2}Fe{sub 14}B + {alpha}-Fe at temperatures above the spin reorientation temperature were analyzed within the framework of the micromagnetic phenomenological model. Preliminary results indicate that the effective anisotropy constant in the material is intermediate to that of bulk {alpha}-Fe and bulk Nd{sub 2}Fe{sub 14}B and increases with decreasing temperature. These results strongly support the idea that magnetic reversal in nanocomposite systems initiates in the lower-anisotropy regions of the system, and that the soft-phase regions become exchange-hardened by virtue of their proximity to the magnetically-hard regions.

  16. Spring bloom onset in the Nordic Seas

    NASA Astrophysics Data System (ADS)

    Mignot, A.; Ferrari, R.; Mork, K. A.

    2015-08-01

    The North Atlantic spring bloom is a massive annual growth event of marine phytoplankton, tiny free-floating algae that form the base of the ocean's food web and generates a large fraction of the global primary production of organic matter. The conditions that trigger the onset of the spring bloom in the Nordic Seas, at the northern edge of the North Atlantic, are studied using in-situ data from five bio-optical floats released above the Arctic Circle. It is often assumed that spring blooms start as soon as phytoplankton cells daily irradiance is sufficiently abundant that division rates exceed losses. The bio-optical float data instead suggest the tantalizing hypothesis that Nordic Seas blooms start when the photoperiod, the number of daily light hours experienced by phytoplankton, exceeds a critical value, independently of division rates. This bloom behavior may be explained by realizing that photosynthesis is impossible during polar nights and phytoplankton enters in a dormant stage in winter, only to be awaken by a photoperiodic trigger. While the first accumulation of biomass recorded by the bio-optical floats is consistent with the photoperiod hypothesis, it is possible that some biomass accumulation started before the critical photoperiod but at levels too low to be detected by the fluorometers. Thus more precise observations are needed to test the photoperiod hypothesis.

  17. Successful decommissioning and demolition at Weldon Spring

    SciTech Connect

    Davis, M.L.

    1994-12-31

    B&W Nuclear Environmental Services, Inc. (B&W NESI) and OHM Corporation (OHM) formed a joint venture company, B&W/OHM Weldon Spring, Inc. (B&W/OHM WSI) to perform work at the U.S. Department of Energy`s (DOE`s) Weldon Spring Site Remedial Action Project (WSSRAP). This joint venture company combines the hazardous and toxic waste remediation experience of OHM with the radiological decontamination and decommissioning experience of B&W NESI. Together, the two companies have over 60 yr of relevant experience and a strong record of performance in resolving problems associated with nuclear and hazardous materials contamination. The B&W/OHM WSI is under contract to MK-Ferguson, DOE`s project management contractor (PMC), at WSSRAP to provide supervision, tools, labor, and equipment to decontaminate and dismantle 11 buildings at the chemical plant site. The Weldon Spring site, located in St. Charles, Missouri, was used by the U.S. Atomic Energy Commission from 1957 through 1966 as a feed material production site to process uranium and thorium ore concentrates. Since the cessation of production activity at this site, the buildings and structures contained in the chemical plant have badly deteriorated, posing an immediate potential threat to workers, the general public, and the environment, prompting the DOE to initiate an Expedited Response Action to decontaminate, empty, and dismantle all the buildings and structures.

  18. Spring viraemia of carp virus: recent advances.

    PubMed

    Ashraf, Usama; Lu, Yuanan; Lin, Li; Yuan, Junfa; Wang, Min; Liu, Xueqin

    2016-05-01

    Spring viraemia of carp is an environmentally and economically important disease affecting cyprinids, primarily common carp (Cyprinus carpio). The causative agent of this disease is Spring viraemia of carp virus (SVCV) - a member of the genus Vesiculovirus of the family Rhabdoviridae. The disease is presently endemic in Europe, America and several Asian countries, where it causes significant morbidity and mortality in affected fish. SVCV infection is generally associated with exophthalmia; abdominal distension; petechial haemorrhage of the skin, gills, eyes and internal organs; degeneration of the gill lamellae; a swollen and coarse-textured spleen; hepatic necrosis; enteritis; and pericarditis. The SVCV genome is composed of linear, negative-sense, ssRNA containing five genes in the order 3'-N-P-M-G-L-5', encoding a nucleoprotein, phosphoprotein, matrix protein, glycoprotein and RNA-dependent RNA polymerase, respectively. Fully sequenced SVCV strains exhibit distinct amino acid substitutions at unique positions, which may contribute to as-yet unknown strain-specific characteristics. To advance the study of SVCV and the control of spring viraemia of carp disease in the future, this review summarizes our current understanding of SVCV in terms of its genomic characteristics, genetic diversity and pathogenesis, and provides insights into antiviral immunity against SVCV, diagnosis of SVCV and vaccination strategies to combat SVCV.

  19. Experimental Study of Perpendicular Exchange Spring Media

    NASA Astrophysics Data System (ADS)

    Berger, Andreas; Supper, Natacha; Lengsfield, Byron; Margulies, David; Moser, Andreas; Fullerton, Eric

    2007-03-01

    We have investigated the magnetic reversal and recording properties of perpendicular exchange spring media. These structures, which combine a soft and a hard layer material^1, have recently been proposed as suitable candidates for advanced perpendicular magnetic recording^2. Previous studies^3 have also shown that the magnetization reversal can be tuned by means of a suitable coupling layer. In our study, we have investigated structures that consist of two magnetic layers having different HK-values and being separated by a coupling layer of adjustable thickness. Similar to the results of our previous work on longitudinal exchange spring media^4, we find that there is an optimum coupling layer thickness, at which the magnetic reversal field is minimized. We also observe in our magnetometry experiments that the most robust parameter to quantify this improved magnetization reversal is the closure field HS. The anticipated writability improvements for exchange spring media with optimal interlayer coupling strength are corroborated by detailed recording studies. [1] E.E. Fullerton et al., Phys. Rev. B 58, 12193 (1998); [2] R. Victora et al., IEEE Trans. MAG 41, 537 (2005); [3] K.C. Schuermann et al., J Appl. Phys. 99, 08Q904 (2006); [4] N. Supper et al., IEEE Trans. MAG 41, 3238 (2005)

  20. N Springs expedited response action proposal

    SciTech Connect

    Not Available

    1994-01-01

    Since signing the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) in 1989, the parties to the agreement have recognized the need to modify the approach to conducting investigations, studies, and cleanup actions at Hanford. To implement this approach, the parties have jointly developed the Hanford Past-Practice Strategy. The strategy defines a non-time-critical expedited response action (ERA) as a response action ``needed to abate a threat to human health or welfare or the environment where sufficient time exists for formal planning prior to initiation of response. In accordance with the past-practice strategy, DOE proposes to conduct an ERA at the N Springs, located in the Hanford 100 N Area, to substantially reduce the strontium-90 transport into the river through the groundwater pathway. The purpose of this ERA proposal is to provide sufficient information to select a preferred alternative at N Springs. The nature of an ERA requires that alternatives developed for the ERA be field ready; therefore, all the technologies proposed for the ERA should be capable of addressing the circumstances at N Springs. A comparison of these alternatives is made based on protectiveness, cost, technical feasibility, and institutional considerations to arrive at a preferred alternative. Following the selection of an alternative, a design phase will be conducted; the design phase will include a detailed look at design parameters, performance specifications, and costs of the selected alternative. Testing will be conducted as required to generate design data.

  1. Springs as Ecosystems: Clarifying Groundwater Dependence and Wetland Status (Invited)

    NASA Astrophysics Data System (ADS)

    Stevens, L.; Springer, A. E.; Ledbetter, J. D.

    2013-12-01

    Springs ecosystems are among the most productive, biologically diverse and culturally important ecosystems on Earth. Net annual productivity of some springs exceeds 5 kg/m^2/yr. Springs support an estimated 19% of the endangered species and numerous rare taxa in the United States. Springs serve as keystone ecosystems in arid regions, and as cornerstones of indigenous cultural well-being, history, economics, and aesthetics. Despite their significance, the ecosystem ecology and stewardship of springs have received scant scientific and public attention, resulting in loss or impairment of 50-90% of the springs in many regions, both arid and temperate. Six reasons contribute to the lack of attention to springs. Springs are poorly mapped because: 1) their generally small size is less than the pixel area of most remote sensing analyses and they are overlooked; and 2) springs detection is often limited by emergence on cliff faces, beneath heavy vegetation cover, or under water. In addition, 3) high levels of ecosystem complexity at springs require multidisciplinary team approaches for inventory, assessment, and research, but collaboration between the fields of hydrogeology and ecology has been limited. 4) Protectionism by land owners and organizations that manage springs limits the availability information, preventing regional assessment of status. 5) Prior to recent efforts, the absence of a descriptive lexicon of springs types has limited discussion about variation in ecological characteristics and processes. 6) Neither regarded entirely as groundwater or as surface water, springs fall 'between jurisdictional cracks' and are not subject to clear legal and regulatory oversight. With regards to the latter point, two jurisdictional phrases have reduced scientific understanding and stewardship of springs ecosystems: 'jurisdictional wetlands' and 'groundwater-dependent ecosystems' (GDEs). Most springs have insufficient monitoring data to establish perenniality or the range of

  2. Meeting Report: Ordinary Meeting and Exhibition Meeting, 2006 June 24

    NASA Astrophysics Data System (ADS)

    McGee, H.; Mobberley, M.

    2007-06-01

    Prior to the Ordinary Meeting, the annual Exhibition was opened by Richard Miles, President, who said he was pleased to report that all but two of the Sections had display stands this year, and that most of the Directors had also been able to attend and were available for members who wished to discuss their work. Although we had almost a full day of talks to enjoy, members should not be shy of coming and going from the lecture theatre at will, and in particular must make sure they took sufficient time to do justice to the excellent Exhibition on offer.

  3. Northeast Oregon Hatchery Spring Chinook Master Plan, Technical Report 2000.

    SciTech Connect

    Ashe, Becky L.; Concannon, Kathleen; Johnson, David B.

    2000-04-01

    Spring chinook salmon populations in the Imnaha and Grande Ronde rivers are listed as threatened under the Endangered Species Act (ESA) and are at high risk of extirpation. The Nez Perce Tribe, the Confederated Tribes of the Umatilla Indian Reservation, and Oregon Department of Fish and Wildlife, are co-managers of conservation/restoration programs for Imnaha and Grande Ronde spring chinook salmon that use hatchery supplementation and conventional and captive broodstock techniques. The immediate goal of these programs is to prevent extirpation and provide the potential for restoration once factors limiting production are addressed. These programs redirect production occurring under the Lower Snake River Compensation Plan (LSRCP) from mitigation to conservation and restoration. Both the Imnaha and Grande Ronde conservation/restoration programs are described in ESA Section 10 permit applications and the co-managers refer to the fish production from these programs as the Currently Permitted Program (CPP). Recently, co-managers have determined that it is impossible to produce the CPP at Lookingglass Hatchery, the LSRCP facility intended for production, and that without additional facilities, production must be cut from these conservation programs. Development of new facilities for these programs through the Columbia Basin Fish and Wildlife Program is considered a new production initiative by the Northwest Power Planning Council (NPPC) and requires a master plan. The master plan provides the NPPC, program proponents and others with the information they need to make sound decisions about whether the proposed facilities to restore salmon populations should move forward to design. This master plan describes alternatives considered to meet the facility needs of the CPP so the conservation program can be fully implemented. Co-managers considered three alternatives: modify Lookingglass Hatchery; use existing facilities elsewhere in the Basin; and use new facilities in

  4. Managing Meetings...Remotely

    NASA Technical Reports Server (NTRS)

    Woodward, Hugh

    2005-01-01

    Remote meetings are best for updates and information sharing, but it is possible to effectively facilitate decisions with a little planning. Generally, the meeting leader needs to clearly state the proposed decision and then separately poll each participant for concurrence. Normally, there will be a range of responses, requiring the facilitator to restate the proposal and repeat the process. Several iterations may be required before a consensus is achieved. I usually confirm decisions by restating the conclusion as it will appear in the meeting notes and asking the participants to express any objections. Gaining commitment to follow-up actions is never easy, of course, but tends to be particularly tricky in remote meetings. The ideal solution is to use collaboration software with a whiteboard as a means of recording the follow-up actions and responsibilities. (A Word or Excel document viewed through NetMeeting works equally well.) But if the meeting is being conducted without collaboration software, the leader must review each follow-up action explicitly, even painstakingly. I generally note follow-up actions throughout the meeting and use the last few minutes to confirm and finalize. I read each action and name the person I think owns the responsibility. When the person accepts, I validate by asking for a completion date. All the normal rules for assigning follow-up actions apply, of course. One, and only one, person must be responsible for each action, and assigning an action to somebody not present is akin to assigning it to nobody.

  5. Integrated Field Analyses of Thermal Springs

    NASA Astrophysics Data System (ADS)

    Shervais, K.; Young, B.; Ponce-Zepeda, M. M.; Rosove, S.

    2011-12-01

    A group of undergraduate researchers through the SURE internship offered by the Southern California Earthquake Center (SCEC) have examined thermal springs in southern Idaho, northern Utah as well as mud volcanoes in the Salton Sea, California. We used an integrated approach to estimate the setting and maximum temperature, including water chemistry, Ipad-based image and data-base management, microbiology, and gas analyses with a modified Giggenbach sampler.All springs were characterized using GISRoam (tmCogent3D). We are performing geothermometry calculations as well as comparisons with temperature gradient data on the results while also analyzing biological samples. Analyses include water temperature, pH, electrical conductivity, and TDS measured in the field. Each sample is sealed and chilled and delivered to a water lab within 12 hours.Temperatures are continuously monitored with the use of Solinst Levelogger Juniors. Through partnership with a local community college geology club, we receive results on a monthly basis and are able to process initial data earlier in order to evaluate data over a longer time span. The springs and mudpots contained microbial organisms which were analyzed using methods of single colony isolation, polymerase chain reaction, and DNA sequencing showing the impact of the organisms on the springs or vice versa. Soon we we will collect gas samples at sites that show signs of gas. This will be taken using a hybrid of the Giggenbach method and our own methods. Drawing gas samples has proven a challenge, however we devised a method to draw out gas samples utilizing the Giggenbach flask, transferring samples to glass blood sample tubes, replacing NaOH in the Giggenbach flask, and evacuating it in the field for multiple samples using a vacuum pump. We also use a floating platform devised to carry and lower a levelogger, to using an in-line fuel filter from a tractor in order to keep mud from contaminating the equipment.The use of raster

  6. War diseases revealed by the social media: massive leishmaniasis outbreak in the Syrian Spring.

    PubMed

    Alasaad, Samer

    2013-04-12

    Social media introduce pivotal changes to communication between individuals, organizations and communities. A clear example of the power of social media is the spread of the revolutionary outbreaks in the Arabic countries during 2011, where people used Facebook, YouTube and Skype to communicate, organise meetings and protest actions. Here I report how Doctor-Activists use these social media as an alarm system for 'war disease' outbreaks in the Syrian Spring. Social media are used as an alarm system to attract the attention of international organizations, which should assume their responsibilities and play their part in controlling the outbreak of such war diseases.

  7. Minutes of the meeting - pennsylvania electric association, engineering section, structures and hydraulics committee, spring, 1981

    SciTech Connect

    Not Available

    1981-01-01

    The minutes contains 6 papers dealing with structures and hydraulics. Topics include: rehabilitation of small hydro projects; enviromental impact of hydroelectric projects; and pumped storage. 5 papers are indexed separately.

  8. The EPA CompTox Chemistry Dashboard - an online resource for environmental chemists (ACS Spring Meeting)

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) Computational Toxicology Program integrates advances in biology, chemistry, and computer science to help prioritize chemicals for further research based on potential human health risks. This work involves computational and data drive...

  9. TRIAD Annual Spring Meeting (49th) Held in Huntsville, Alabama on May 27, 2010

    DTIC Science & Technology

    2010-05-27

    Motor Space Shuttle Main Engine 20 Project Constellation Programs Supported at MSFC... bi h i t Fluoropolymer films 10 cm He Tracer gas P = 760 Torr Pump and Manometer Control Valve 0 2 4 6 t h ( n m ) t h ( n m ) t h ( n m ) 300...h ( n D e p t h ( n m ) D e p t h ( n m ) D e p t h ( n m ) D e p t h ( n m ) http://aamuri.aamu.edu – (256) 372-8703 19 Turbo

  10. The EPA CompTox Chemistry Dashboard - an online resource for environmental chemists (ACS Spring Meeting)

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) Computational Toxicology Program integrates advances in biology, chemistry, and computer science to help prioritize chemicals for further research based on potential human health risks. This work involves computational and data drive...

  11. 20170402 - OPERA: A QSAR tool for physicochemical properties and environmental fate predictions (ACS Spring meeting)

    EPA Science Inventory

    The collection of chemical structures and associated experimental data for QSAR modeling is facilitated by the increasing number and size of public databases. However, the performance of QSAR models highly depends on the quality of the data used and the modeling methodology. The ...

  12. OPERA: A QSAR tool for physicochemical properties and environmental fate predictions (ACS Spring meeting)

    EPA Science Inventory

    The collection of chemical structures and associated experimental data for QSAR modeling is facilitated by the increasing number and size of public databases. However, the performance of QSAR models highly depends on the quality of the data used and the modeling methodology. The ...

  13. General Robert E. Lee (1807-70) and Philanthropist George Peabody (1795-1869) at White Sulphur Springs, West Virginia, July 23-Aug. 30, 1869.

    ERIC Educational Resources Information Center

    Parker, Franklin; Parker, Betty J.

    This paper discusses the chance meeting at White Sulphur Springs (West Virginia) of two important public figures, Robert E. Lee and George Peabody, whose rare encounter marked a symbolic turn from Civil War bitterness toward reconciliation and the lifting power of education. The paper presents an overview of Lee's life and professional and…

  14. A Preliminary Investigation of Caffeinated Alcohol Use During Spring Break

    PubMed Central

    Linden-Carmichael, Ashley N

    2016-01-01

    Background Caffeinated alcoholic beverages (e.g., Red Bull and vodka) are popular but associated with negative consequences. CABs may be particularly popular during Spring Break, a potentially risky social event. Objectives We aimed to identify the prevalence of Spring Break caffeinated alcohol use, determine how caffeinated alcohol use Spring Break drinking habits differ from usual, and examine the association between Spring Break caffeinated alcohol use and alcohol-related problems. Methods Data were collected from 95 college students during March of 2013 and 2014. Students completed questionnaires of their alcohol and caffeinated alcohol use before and during Spring Break and Spring Break alcohol-related problems. Results Approximately 54% of students used caffeinated alcohol during Spring Break. Spring Break caffeinated alcohol use was associated with more alcohol-related problems, even after controlling for other alcohol consumed and Spring Break vacation status. Conclusions/Importance Caffeinated alcoholic beverages are commonly consumed during Spring Break and their use uniquely predicted harms. Prevention efforts placed on caffeinated alcoholic beverage users may be helpful in reducing Spring Break-related harms. PMID:27100825

  15. Muscle-spring dynamics in time-limited, elastic movements.

    PubMed

    Rosario, M V; Sutton, G P; Patek, S N; Sawicki, G S

    2016-09-14

    Muscle contractions that load in-series springs with slow speed over a long duration do maximal work and store the most elastic energy. However, time constraints, such as those experienced during escape and predation behaviours, may prevent animals from achieving maximal force capacity from their muscles during spring-loading. Here, we ask whether animals that have limited time for elastic energy storage operate with springs that are tuned to submaximal force production. To answer this question, we used a dynamic model of a muscle-spring system undergoing a fixed-end contraction, with parameters from a time-limited spring-loader (bullfrog: Lithobates catesbeiana) and a non-time-limited spring-loader (grasshopper: Schistocerca gregaria). We found that when muscles have less time to contract, stored elastic energy is maximized with lower spring stiffness (quantified as spring constant). The spring stiffness measured in bullfrog tendons permitted less elastic energy storage than was predicted by a modelled, maximal muscle contraction. However, when muscle contractions were modelled using biologically relevant loading times for bullfrog jumps (50 ms), tendon stiffness actually maximized elastic energy storage. In contrast, grasshoppers, which are not time limited, exhibited spring stiffness that maximized elastic energy storage when modelled with a maximal muscle contraction. These findings demonstrate the significance of evolutionary variation in tendon and apodeme properties to realistic jumping contexts as well as the importance of considering the effect of muscle dynamics and behavioural constraints on energy storage in muscle-spring systems. © 2016 The Author(s).

  16. Structural analysis of compression helical spring used in suspension system

    NASA Astrophysics Data System (ADS)

    Jain, Akshat; Misra, Sheelam; Jindal, Arun; Lakhian, Prateek

    2017-07-01

    The main aim of this work has to develop a helical spring for shock absorber used in suspension system which is designed to reduce shock impulse and liberate kinetic energy. In a vehicle, it increases comfort by decreasing amplitude of disturbances and it improves ride quality by absorbing and dissipating energy. When a vehicle is in motion on a road and strikes a bump, spring comes into action quickly. After compression, spring will attempt to come to its equilibrium state which is on level road. Helical springs can be made lighter with more strength by reducing number of coils and increasing the area. In this research work, a helical spring is modeled and analyzed to substitute the existing steel spring which is used in suspension. By using different materials, stress and deflection of helical spring can be varied. Comparability between existing spring and newly replaced spring is used to verify the results. For finding detailed stress distribution, finite element analysis is used to find stresses and deflection in both the helical springs. Finite element analysis is a method which is used to find proximate solutions of a physical problem defined in a finite domain. In this research work, modeling of spring is accomplished using Solid Works and analysis on Ansys.

  17. Acidification and Increasing CO2 Flux Associated with Five, Springs Coast, Florida Springs (1991-2014)

    USGS Publications Warehouse

    Barrera, Kira E.; Robbins, Lisa L.

    2017-01-01

    Scientists from the South West Florida Management District (SWFWMD) acquired and analyzed over 20 years of seasonally-sampled hydrochemical data from five first-order-magnitude (springs that discharge 2.83 m3 s-1 or more) coastal springs located in west-central Florida. These data were subsequently obtained by the U.S. Geological Survey (USGS) for further analyses and interpretation. The spring study sites (Chassahowitzka, Homosassa, Kings Bay, Rainbow, and Weeki Wachee), which are fed by the Floridan Aquifer system and discharge into the Gulf of Mexico were investigated to identify temporal and spatial trends of pH, alkalinity, partial pressure of carbon dioxide (pCO2) and CO2 flux.

  18. Hydrogeology and ground-water-flow simulation of the Cave Springs area, Hixson, Tennessee

    USGS Publications Warehouse

    Haugh, Connor J.

    2002-01-01

    The ground-water resource in the Cave Springs area is used by the Hixson Utility District as a water supply and is one of the more heavily stressed in the Valley and Ridge Physiographic Province. In 1999, ground-water withdrawals by the Hixson Utility District averaged about 6.4 million gallons per day (Mgal/d) from two pumping centers. The Hixson Utility District has historically withdrawn about 5.8 Mgal/d from wells at Cave Springs. In 1995 to meet increasing demand, an additional well field was developed at Walkers Corner, located about 3 miles northeast of Cave Springs. From 1995 through 2000, pumping from the first production well at Walkers Corner averaged about 1.8 Mgal/d. A second production well at Walkers Corner was approved for use in 2000. Hixson Utility District alternates the use of the two production wells at Walkers Corner except when drought conditions occur when they are used simultaneously. The second production well increased the capacity of the well field by an additional 2 Mgal/d. The aquifer framework in the study area consists of dense Paleozoic carbonate rocks with secondary permeability that are mantled by thick residual clay-rich regolith in most of the area and by coarse-grained alluvium in the valley of North Chickamauga Creek. Cave Springs, one of the largest springs in Tennessee, derives its flow from conduits in a carbonate rock (karst) aquifer. Production wells at Cave Springs draw water from these conduits. Production wells at Walkers Corner primarily draw water from gravel zones in the regolith near the top of rock. Transmissivities estimated from hydraulic tests conducted across the Cave Springs area span a range from 240 to 900,000 feet squared per day (ft2/d) with a median value of 5,200 ft2/d. Recharge to the aquifer occurs from direct infiltration of precipitation and from losing streams. Most recharge occurs during the winter and spring months. Computer modeling was used to provide a better understanding of the ground

  19. Professors and Industry Meet

    ERIC Educational Resources Information Center

    Sheriff, Robert E.

    1974-01-01

    Describes backgrounds of geophysics graduates that are desired for employment by industry. Also listed are areas in which industry could help universities concerning the development of programs to meet the future manpower needs in industry. (BR)

  20. Pacific Northwest AGU Meeting

    NASA Astrophysics Data System (ADS)

    Engebretson, David C.; Beck, Myrl E., Jr.

    1984-04-01

    The 30th AGU Pacific Northwest Regional Meeting was held September 29 to October 1, 1983, on the campus of Western Washington University, Bellingham, Wash. Approximately 125 attended the meeting, and 36 papers were presented. The meeting included two fields trips, five special symposia, and a banquet where keynote speaker Don Swanson presented “Dome building on Mt. St. Helens.”The meeting highlights included a symposium on Tertiary sedimentary basins of Washington and Oregon which revealed the importance of sedimentological studies for deciphering the timing and nature of accretionary processes in tectonically active areas. Geological and geophysical studies on the recent tectonics of the Juan de Fuca plate and nearby continent were presented by workers from the United States and Canada as well as ongoing studies for the evolution and character of the crystalline North Cascades of Washington and British Columbia.