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1

Solar panel handling and mounting device  

Microsoft Academic Search

The device is formed with flanges at right angles to each other which can engage the edge and side of a solar panel and be secured thereto. The device has a handgrip thereon for manual handling of the solar panel during transportation and installation. The device has openings therein for securing the solar panel in place during transportation and at

Diba

1985-01-01

2

A Fuzzy-Based Maximum Power Point Tracker for Body Mounted Solar Panels in LEO Satellites  

Microsoft Academic Search

Solar panels are the power subsystem components which provide satellite electrical power. Solar panels characteristics depend on environmental conditions (insolation level, temperature and etc.). In this paper, design and simulation of fuzzy-based MPPT for the body mounted solar panel in a LEO satellite are presented. To show how good the proposed technique is; we applied it into a real system.

M. Taherbaneh; M. B. Menhaj

2007-01-01

3

High-resolution color flat panel head-mounted display design for the Advanced Flat Panel program  

Microsoft Academic Search

The Advanced Flat Panel program is developing high resolution color head mounted display systems for medical and low power applications. The first phase of the program has developed a stereoscopic head-mounted display for arthroscopic and endoscopic surgical applications using high resolution color AMLCDs and 1280 by 1024 spatially colored active matrix electroluminescent image sources. The next phase of the program

Scott N. Nelson; Michael A. Helgeson

1996-01-01

4

High-resolution color flat panel head-mounted display design for the Advanced Flat Panel program  

NASA Astrophysics Data System (ADS)

The Advanced Flat Panel program is developing high resolution color head mounted display systems for medical and low power applications. The first phase of the program has developed a stereoscopic head-mounted display for arthroscopic and endoscopic surgical applications using high resolution color AMLCDs and 1280 by 1024 spatially colored active matrix electroluminescent image sources. The next phase of the program will target low power color HMD applications with sequentially colored 1280 by 1024 AMEL devices and conclude with the demonstration of a 2560 by 2048 flat panel HMD. The medical HMD design and preliminary user evaluation of the system are discussed here along with a review of the spatially colored AMEL performance and a comparison of system architectures of the three different high resolution color displays that are being demonstrated on this program.

Nelson, Scott N.; Helgeson, Michael A.

1996-06-01

5

High-resolution flat-panel head-mounted display: results and conclusions from the combat vehicle crew head-mounted display  

Microsoft Academic Search

The Combat Vehicle Crew (CVC) head-mounted display (HMD) program has built the first high-resolution (1280 X 1024) flat panel head mounted display. The CVC HMD is designed for use by the tank commander of an M1 A2 main battle tank and will show both tactical IVIS information and thermal imagery from the commander's independent thermal viewer. The CVC HMD uses

Scott A. Nelson; Michael A. Helgeson; John Golusky; Steve Swanson; Peter Reutiman

1995-01-01

6

Arthroscopic knee surgery using the advanced flat panel high-resolution color head-mounted display  

NASA Astrophysics Data System (ADS)

The first ever deployed arthroscopic knee surgeries have been performed using a high resolution color head-mounted display (HMD) developed under the DARPA Advanced Flat Panel HMD program. THese procedures and several fixed hospital procedures have allowed both the system designers and surgeons to gain new insight into the use of a HMD for medical procedures in both community and combat support hospitals scenarios. The surgeons demonstrated and reported improved head-body orientation and awareness while using the HMD and reported several advantages and disadvantages of the HMD as compared to traditional CRT monitor viewing of the arthroscopic video images. The surgeries, the surgeon's comments, and a human factors overview of HMDs for Army surgical applications are discussed here.

Nelson, Scott A.; Jones, D. E. Casey; St. Pierre, Patrick; Sampson, James B.

1997-06-01

7

Application of flat panel devices to avionics head-up and helmet-mounted displays  

Microsoft Academic Search

Avionics head up and helmet mounted displays have severe demands on luminance and resolution. There is a requirement to view the display over a range of ambient illumination from full sunlight to night and to provide high accuracy for weapon release. Installation constraints further complicate the optical design and mass is crucial for the head mounted hardware. Currently, the only

Christopher T. Bartlett

1997-01-01

8

Photovoltaic module mounting system  

Microsoft Academic Search

A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that

Robert H. J. Miros; Margaret Birmingham Mittan; Martin N. Seery; Rodney H. Holland

2012-01-01

9

Proponent Evaluation Report of the Contact Maintenance Truck Mounted on the Heavy HMMWV (HHV) M1097, HHV-CMT Concept Evaluation Program CEP Number 92-722.  

National Technical Information Service (NTIS)

This Concept Evaluation Program (CEP) evaluated a 3rd generation contact maintenance truck (CMT) mounted on a Heavy HMMWV (HHV) as part of the materiel development concept formulation process. Three different HHV-CMT prototypes were fabricated and evaluat...

1992-01-01

10

Photovoltaic module mounting system  

SciTech Connect

A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that grip the edge of the typically glass substrate. The panel mounting clamps are then held in place by tilt brackets and/or mid-link brackets that provide fixation for the clamps and align the solar panels at a tilt to the horizontal mounting surface. The tilt brackets are held in place atop the flexible feet and connected link members thus creating a complete mounting structure.

Miros, Robert H. J. (Fairfax, CA); Mittan, Margaret Birmingham (Oakland, CA); Seery, Martin N. (San Rafael, CA); Holland, Rodney H. (Novato, CA)

2012-04-17

11

Photovoltaic module mounting system  

SciTech Connect

A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that grip the edge of the typically glass substrate. The panel mounting clamps are then held in place by tilt brackets and/or mid-link brackets that provide fixation for the clamps and align the solar panels at a tilt to the horizontal mounting surface. The tilt brackets are held in place atop the flexible feet and connected link members thus creating a complete mounting structure.

Miros, Robert H. J.; Mittan, Margaret Birmingham; Seery, Martin N; Holland, Rodney H

2012-09-18

12

Harvesting energy from the sun---photovoltaic panel apparatus  

NASA Astrophysics Data System (ADS)

Two 11 cm x 18 cm photovoltaic panels are mounted on a modified ballistic pendulum apparatus that was retired from service in our labs. Its heavy base with pivoted arm provides a stable mount with angle adjustment. Residential PV panel installations group the panels both in series and in parallel, extract maximum power from these groupings, and deal with varying intensity due to changing light conditions. Measurements in the undergraduate lab with a bare light bulb simultaneously provide characteristic graphs of current vs voltage, power vs voltage, load resistance vs voltage for PV panels singly, in series, or in parallel. Also intensity dependence on angle and on distance to the light source are studied in the lab. A custom junction box with a variable load resistor connects the PV panels to PASCO's interface box with voltage and current leads. PASCO's Data Studio is used to record and analyze the graphs.

Riccio, David; Schier, Walter

2011-04-01

13

A comparative study on the effectiveness of piezoelectric patches for active composite panels with surface-mounted and embedded sensors and actuators  

NASA Astrophysics Data System (ADS)

This study focuses on the effectiveness of the piezoelectric patches either surface-mounted or embedded for different composite laminate thicknesses. Primarily, two finite element models (FEMs) are considered for this study. The first FEM considers beams with varying thicknesses and non-collocated surface-mounted piezoelectric patches as sensor and actuator. Typical results are shown for four and eight layers graphite/epoxy composite laminates. The second FEM deals with embedded non-collocated piezoelectric patches as sensor and actuator for beams with varying thicknesses. For the embedded case one extra layer is needed to cover the piezoelectric patch and one extra cut-out layer to fill the area around the piezoelectric patch. Therefore, a composite beam for the embedded case in comparison to the surface-mounted case has always four extra constraint layers. Typical results, for these two cases, are compared for the beams with the same number of inner layers (i.e. four and eight). A surface-mounted ACX piezoelectric patch acts as a shaker in both FEMs. Numerical and experimental results from modal and harmonic analyses were compared and excellent comparisons were achieved. Cross-examination between these two FEMs determined the following. 1) The effectiveness of piezoelectric patches acting as an actuator with respect to the laminate thicknesses and the actuator distance from the beam neutral axis for both cases. 2) The influence of the constraint layers on the performance of the embedded piezoelectric patches.

Russ, Richard; Ghasemi-Nejhad, Mehrdad N.

2003-08-01

14

A large-scale mutant panel in wheat developed using heavy-ion beam mutagenesis and its application to genetic research  

NASA Astrophysics Data System (ADS)

Mutation analysis is a powerful tool for studying gene function. Heavy-ion beam mutagenesis is a comparatively new approach to inducing mutations in plants and is particularly efficient because of its high linear energy transfer (LET). High LET radiation induces a higher rate of DNA double-strand breaks than other mutagenic methods. Over the last 12 years, we have constructed a large-scale mutant panel in diploid einkorn wheat (Triticum monococcum) using heavy-ion beam mutagenesis. Einkorn wheat seeds were exposed to a heavy-ion beam and then sown in the field. Selfed seeds from each spike of M1 plants were used to generate M2 lines. Every year, we obtained approximately 1000 M2 lines and eventually developed a mutant panel with 10,000 M2 lines in total. This mutant panel is being systematically screened for mutations affecting reproductive growth, and especially for flowering-time mutants. To date, we have identified several flowering-time mutants of great interest: non-flowering mutants (mvp: maintained vegetative phase), late-flowering mutants, and early-flowering mutants. These novel mutations will be of value for investigations of the genetic mechanism of flowering in wheat.

Murai, Koji; Nishiura, Aiko; Kazama, Yusuke; Abe, Tomoko

2013-11-01

15

Segmented combustor panel  

SciTech Connect

This patent describes an improvement in a combustion chamber for a gas turbine engine. It comprises: a generally cylindrically configured outer shell having a longitudinal axis and a plurality of annular lands lying in planes transverse to the axis and at spaced locations along the axis; axially spaced concentrically disposed segmented liner panels arranged in side by side circumferential relationship; first mounting means for fixedly attaching each of the liner panels to an associated one of the annular lands; second mounting means for attaching each of the liner panels to the associated annular land at a second location; and third mounting means for attaching each of the liner panels to the outer shell at a third location.

Hovnanian, C.V.

1990-07-31

16

Mirror mount  

DOEpatents

A mirror mount (10) is provided that allows free pitch, yaw and roll motion of the mirror (28) while keeping the location of a point (56) on the surface of the mirror (28) fixed in the rest frame of reference of the mount (10). Yaw movement is provided by two yaw cylinders (30,32) that are bearing (52) mounted to provide rotation. Pitch and roll motion is provided by a spherically annular shell (42) that is air bearing (72,74) mounted to move between a clamp (60) and an upper pedestal bearing (44). The centers of curvature of the spherical surfaces of the shell (42) lie upon the point (56). Pitch motion and roll motion are separately and independently imparted to mirror (28) by a pair of pitch paddles (34) and a pair of roll paddles (36) that are independently and separately moved by control rods (76,80) driven by motors (78,82).

Humpal, Harold H. (San Ramon, CA)

1987-01-01

17

Mirror mount  

DOEpatents

A mirror mount is provided that allows free pitch, yaw and roll motion of the mirror while keeping the location of a point on the surface of the mirror fixed in the rest frame of reference of the mount. Yaw movement is provided by two yaw cylinders that are bearing mounted to provide rotation. Pitch and roll motion is provided by a spherically annular shell that is air bearing mounted to move between a clamp and an upper pedestal bearing. The centers of curvature of the spherical surfaces of the shell lie upon the point. Pitch motion and roll motion are separately and independently imparted to mirror by a pair of pitch paddles and a pair of roll paddles that are independently and separately moved by control rods driven by motors.

Humpal, H.H.

1986-03-21

18

Analysis of the modal energy distribution of an excited vibrating panel coupled with a heavy fluid cavity by a dual modal formulation  

NASA Astrophysics Data System (ADS)

This paper describes the modal interaction between a panel and a heavy fluid cavity when the panel is excited by a broad band force in a given frequency band. The dual modal formulation (DMF) allows describing the fluid-structure coupling using the modes of each uncoupled subsystem. After having studied the convergence of the modal series on a test case, we estimate the modal energies and the total energy of each subsystem. An analysis of modal energy distribution is performed. It allows us to study the validity of SEA assumptions for this case. Added mass and added stiffness effects of the fluid are observed. These effects are related to the non-resonant acoustic modes below and above the frequency band of excitation. Moreover, the role of the spatial coupling of the resonant cavity modes with the non-resonant structure modes is also highlighted. As a result, the energy transmitted between the structure and the heavy fluid cavity generally cannot be deduced from the SEA relation established for a light fluid cavity.

Maxit, Laurent

2013-12-01

19

Mounting Electronics  

Microsoft Academic Search

\\u000a Your 3D printer needs a handful of electronics to control the Extruder and motors, and that’s what you’ll be working on in\\u000a this chapter. While you could easily mount all of the electronics on a separate piece of plywood, that would also involve\\u000a having many long wires running from motors and Extruder to the various controller components.

Patrick Hood-Daniel; James Floyd Kelly

20

Mount Vernon  

NSDL National Science Digital Library

Owned and operated by the Mount Vernon Ladies' Association since 1858, the home and grounds at Mount Vernon were home to George Washington for over 45 years. While the site contains ample information for those planning to visit the home in person, there are several nice online features here for persons who cannot make the trip. The Mansion Tour is one such feature, as it allows visitors to the site to take a virtual tour of the home's three floors. Navigating through the floors, visitors can click on such rooms as the Master Bedroom (where Washington himself died in 1799) and read a brief discussion of the room's use and importance, along with viewing additional objects that were part of the room's decor, such as portraits and a mantel clock. The Educational Resources section of the site contains a biographical portrait of Washington, along with an online quiz. Information on the various archaeological digs on the site is available, as is a frequently asked questions section, which dispels various popular myths about the late president, such as the belief that he wore wooden teeth or that he chopped down a cherry tree.

2000-01-01

21

Panel for solar energy cells  

Microsoft Academic Search

A panel for mounting solar energy cells, and particularly those cells upon which light is to be concentrated, includes an enclosure for holding the cells and has at least one wall formed from a good conductor of heat. The cells are mounted within the enclosure on a resinous cushion that is a relatively good conductor of heat and a poor

Varadi

1977-01-01

22

Two Position Mounting Bracket for Computer Display.  

National Technical Information Service (NTIS)

A bracket for mounting a view screen fixes the screen in a retracted or a deployed position. The bracket has a base plate fixed to an upright panel. A carrier plate both swings and vertically translates on the base plate. Hinged between the base plate and...

M. J. Manceor

2003-01-01

23

Magnetic core mounting system  

DOEpatents

A mounting apparatus for an electromagnetic device such as a transformer of inductor includes a generally planar metallic plate as a first heat sink, and a metallic mounting cup as a second heat sink. The mounting cup includes a cavity configured to receive the electromagnetic device, the cavity being defined by a base, and an axially-extending annular sidewall extending from the base to a flange portion of the mounting cup. The mounting cup includes first and second passages for allowing the leads of first and second windings of the electromagnetic device to be routed out of the cavity. The cavity is filled with a polyurethane potting resin, and the mounting cup, including the potted electromagnetic device, is mounted to the plate heat sink using fasteners. The mounting cup, which surrounds the electromagnetic device, in combination with the potting resin provides improved thermal transfer to the plate heat sink, as well as providing resistance to vibration and shocks.

Ronning, Jeffrey J. (Fishers, IN)

2002-01-01

24

PANORAMA, MOUNT BALLYHOO GARRISON, LOOKING SOUTH TOWARD MOUNT BALLYHOO IN ...  

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

PANORAMA, MOUNT BALLYHOO GARRISON, LOOKING SOUTH TOWARD MOUNT BALLYHOO IN THE DISTANCE - Naval Operating Base Dutch Harbor & Fort Mears, Mount Ballyhoo Garrison Barracks, Unalaska, Aleutian Islands, AK

25

2. PANORAMA, MOUNT BALLYHOO GARRISON, LOOKING SOUTH TOWARD MOUNT BALLYHOO ...  

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

2. PANORAMA, MOUNT BALLYHOO GARRISON, LOOKING SOUTH TOWARD MOUNT BALLYHOO IN THE DISTANCE - Naval Operating Base Dutch Harbor & Fort Mears, Mount Ballyhoo Garrison Barracks, Unalaska, Aleutian Islands, AK

26

Nonstationary Panels, Cointegration in Panels and Dynamic Panels: A Survey  

Microsoft Academic Search

This paper provides an overvie of topics in nonstationary panels: panel unit root tests, panel cointegration tests, and estimation of panel cointegration models. In addition it surveys recent developments in dynamic panel data models.

Badi H. Baltagi; Chihwa Kao

2000-01-01

27

Reflex Head Mounted Display: Head Mounted Display for Virtual Reality with Time Lag Compensation  

Microsoft Academic Search

A Head Mounted Display system suffers largely from the time delay (lag) between human motion and the display output. The concept of Reflex HMD to compensate for the time lag is proposed and discussed. The rotation movement of the user's head is measured by a gyroscope, modulating the driving signal for the LCD panel, and shifts the viewport within the

Hiroyuki KANO; Kazuyoshi KITABAYASH; Ryugo KIJIMA

28

Solar panel  

Microsoft Academic Search

A highly efficient solar panel ideally suited for use in heating swimming pools, hot tubs and the like, comprising a plurality of elongated, flexible fluid carrying conduits fixedly secured together in a side by side relationship. The conduits are interconnected at their extremities with header members embodying integral compression fittings of unique design. The panel is shipped in a rolled

Wojcik

1983-01-01

29

Stable mirror mount  

DOEpatents

An improved mirror mount assembly is disclosed. The mirror mount assembly provides a post assembly slidable in a Y-axis orientation and a nut plate assembly slidable in an X-axis orientation and a device for simultaneously locking the post assembly and the key assembly in a fixed position.

Cutburth, Ronald W. (Bulls Gap, TN)

1990-01-01

30

Liver Panel  

MedlinePLUS

... Hepatitis , Hemochromatosis , Wilson Disease , Cirrhosis Elsewhere On The Web American Liver Foundation MayoClinic.com: Liver function tests KidsHealth from Nemours: Hepatic [Liver] Function Panel National ...

31

Mount Etna Eruption  

NSDL National Science Digital Library

This animation is a zoom into the Ongoing Mount Etna Eruption. The data was aquired from the MODIS instrument at 9:40 UTC on July 24, 2001. The Ash Plume and lava streaming from the volcano are clearly visible.

Perkins, Lori; Salomonson, Vincent

2001-07-25

32

Combat vehicle crew helmet-mounted display: next generation high-resolution head-mounted display  

Microsoft Academic Search

The Combat Vehicle Crew Head-Mounted Display (CVC HMD) program is an ARPA-funded, US Army Natick Research, Development, and Engineering Center monitored effort to develop a high resolution, flat panel HMD for the M1 A2 Abrams main battle tank. CVC HMD is part of the ARPA High Definition Systems (HDS) thrust to develop and integrate small (24 micrometers square pels), high

Scott A. Nelson

1994-01-01

33

Solar panel  

SciTech Connect

A highly efficient solar panel ideally suited for use in heating swimming pools, hot tubs and the like, comprising a plurality of elongated, flexible fluid carrying conduits fixedly secured together in a side by side relationship. The conduits are interconnected at their extremities with header members embodying integral compression fittings of unique design. The panel is shipped in a rolled up, preassembled configuration and is installed by simply unrolling the panel onto any suitable supporting surface. To accommodate the size and shape of the available supporting surface, such as a roof, the novel design of the panel permits it to be periodically rolled back upon itself with the oppositely extending portions thereof resting on the supporting surface in a substantially coplanar, side by side relationship with the next adjacent portions. When the panel is completely rolled out, the adjacent portions thereof are interlocked together by novel interlocking means to provide a highly stable assembly which is substantially impervious to damage by wind, vibration, moisture and mildew.

Wojcik, W.

1983-05-03

34

Head Mounted Displays for Medical Use  

Microsoft Academic Search

Head Mounted Displays have been used in various forms to assist surgeons and other medical personnel to support and improve visualization of the work site. Historically, many of these were of inadequate resolution, bulky, cave-like and heavy and they, deservedly, received limited acceptance. Recent availability of high-resolution displays, lighter structures and the various see-though designs that merge both real world

Kurtis Keller; Andrei State; Henry Fuchs

2008-01-01

35

Solar panel  

Microsoft Academic Search

A solar panel comprises a closed body of thermal insulation material with a transparent surface on at least one side thereof. The body has one or more countersunk sections which are lower than the side edges and optional support members, and is surrounded by a transparent sleeve such that one or more air spaces are formed between said sleeve and

Proven

1981-01-01

36

Media Panel.  

ERIC Educational Resources Information Center

|The Swedish Media Panel is a research program about children and young persons and their use of mass media. The aim of the ten-year (1975-1985) project is to explain how media habits originate, how they change as children grow older, what factors on the part of children themselves and in their surroundings may be connected with a certain use of…

Marklund, Inger, Ed.; Hanse, Mona-Britt, Ed.

1984-01-01

37

Panel Sessions.  

ERIC Educational Resources Information Center

|Lists the speakers and summarizes the issues addressed for 12 panel sessions on topics related to networking, including libraries and national networks, federal national resources and energy programs, multimedia issues, telecommuting, remote image serving, accessing the Internet, library automation, scientific information, applications of Z39.50,…

Proceedings of the ASIS Mid-Year Meeting, 1992

1992-01-01

38

Mount Wilson Observatory  

NSDL National Science Digital Library

Mount Wilson Observatory Home page includes a virtual tour and educational programs such as "Telescopes In Education" (TIE) Project, which permits remote access of a 24-inch telescope to schools (K-18) and amateur groups. Also contains professional services and historical information.

39

Wlan Jacket Mounted Antenna  

Microsoft Academic Search

A novel antenna mounted on a textile jacket is presented which arises from previous research work on metal button structures for wearable antennas. The antenna has the dimensions of metallic buttons used in denim clothing. The dimensions have been reduced compared to previously reported designs and this is achieved using dielectric material between two parallel metal plates and a displaced

B. Sanz-Izquierdo; J. C. Batchelor

2007-01-01

40

Head mounted display  

Microsoft Academic Search

This chapter describes head mounted displays (HMDs) from the viewpoint of the human factors. Because it has two separate display systems, HMDs are especially effective in displaying stereoscopic images. To develop better stereoscopic three-dimensional display technologies, it is important to investigate visual functions such as accommodation and convergence. From the results of the experiments, it is now possible to establish

Takashi Shibata

2002-01-01

41

Mount Wilson Observatory  

Microsoft Academic Search

This paper reviews the years work at Mount Wilson Observatory including Solar Research, Lunar and Planetary Investigations, Nebulae Research, Radial Velocities, Stellar Spectrophotometry, Radiometric Measures of Stellar Spectra, Spectroscopic Determinations of Absolute Magnitude and Parallax, Laboratory Investigations, Velocity of Light, Engineering and Design, as well as Stellar Spectroscopy.

George E. Hale; Walter S. Adams; Frederick H. Seares

1931-01-01

42

Who discovered Mount Everest?  

Microsoft Academic Search

The discovery that Mount Everest is the highest mountain in the world was made by the officers of the Survey of India. This organization measured a network of triangulation across India between 1800 and 1870. In order to reduce the measurements to geodetic coordinates, it was necessary to determine the size and shape of the earth. This was accomplished by

Parke A. Dickey

1985-01-01

43

Precision Hinge Mounting Stops.  

National Technical Information Service (NTIS)

The present invention relates to a precision hinge apparatus. To accurately and reproducibly set the angle of a hinge, especially a very small hinge, a precision hinge and angled mounting stops are provided. The device comprises a hinge joint having a fas...

W. H. Nedderman

1999-01-01

44

Mount St. Helens  

NSDL National Science Digital Library

Mount St. Helens, the most active volcano in the Cascade Range, caught the public's attention when massive eruptions began in 1980. With new eruptions and earthquakes taking place recently, people are being reminded of the grave dangers associated with this volcano. The first website, provided by the USDA Forest Service, presents the research, recreational, and educational activities at the 110,000-acre National Volcanic Monument, created in 1982 (1). Users can find live pictures and videos of Mount St. Helens and read about the latest volcanic activity. Second, the University of North Dakota supplies great retrospective of the 1980 explosion (2). Through a series of incredible pictures, students can discover how a huge eruption can drastically change the surrounding landscape. Users can take a virtual trip up the volcano from the trailhead to the summit. At the next website, the USGS provides links to current seismicity and real-time eruption and hydrologic monitoring data (3). Educators can find numerous pictures and figures illustrating the physical features of a volcano. Next, the Pacific Northwest Seismograph Network supplies seismographic and volcanic data for Mount St. Helens (4). While Mount St. Helens is considered the most active volcano in the Pacific Northwest at the moment, visitors can also discover the potential for earthquakes and significant volcanic activity at other locations in the Pacific Northwest. At the fifth website, the Wheeling Jesuit University offers a historical narrative of the serenity of the volcano and its periodic rages (5). While this site does not provide in-depth materials and data like the other sites, the straightforward writing style may be more beneficial to younger audiences. The sixth website is a news release from NASA describing the possibility that infrared digital images could "provide valuable clues as to how" Mount St. Helens erupted on October 1, 2004 (6). Through the many enlightening images of the lava dome, users can learn about how digital infrared imagery's master bands and associated wavelengths are used to characterize different features of the volcano. Next, in a press release, the National Geographic describes the Mount St. Helens eruption this month (7). Students and educators can discover how earthquakes are caused as rainwater encounters hot rock in the fall and how this process may impact the activity of volcanoes. The web site also introduces individuals to the Ring of Fire. Lastly, MSNBC offers a news article and video on the molten magma rising in Mount St. Helens, the current activity levels, and the advisories (8). The web site features a link describing the newest sensors that may assist scientists in predicting explosions.

45

61. Upper panel in cornerpower panel lcpa lower panel in ...  

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

61. Upper panel in corner-power panel lcpa lower panel in corner-oxygen regeneration unit, at right-air conditioner control panel, on floor-bio-pack 45 for emergency breathing, looking northwest - Ellsworth Air Force Base, Delta Flight, Launch Control Facility, County Road CS23A, North of Exit 127, Interior, Jackson County, SD

46

Evaluation of Wind Loads on Solar Panels  

Microsoft Academic Search

The current impetus for alternative energy sources is increasing the demand for solar energy technologies in Florida – the Sunshine State. Florida’s energy production from solar, thermal or photovoltaic sources accounts for only 0.005% of the state total energy generation. The existing types of technologies, methods of installation, and mounting locations for solar panels vary significantly, and are consequently affected

Johann Barata

2011-01-01

47

Imaging properties of retro-reflective materials used in head-mounted projective displays (HMPDs)  

Microsoft Academic Search

The concept of head-mounted projective display (HMPD) has been recently proposed as an alternative to conventional eyepiece-type head-mounted displays (HMDs). An HMPD consists of a pair of miniature projection lenses and flat panel displays mounted on the head and retro-reflective sheeting material placed strategically in the environment. Recent efforts have been made to demonstrate the feasibility of the imaging concept

Hong Hua; Chunyu Gao; Jannick P. Rolland

2002-01-01

48

Spray-ring mounting assembly  

SciTech Connect

This patent describes a thrust augmentation combustor for a gas turbine engine having a duct, an assembly for mounting a spray ring or the like to the duct and having improved vibration isolation characteristics. It comprises a clevis arranged for fixed mounting to the duct, a circular pin mounted in the clevis, an elongated slider having a central circular axial bore and mounted for rotational movement on the pin, the slider having at least two parallel exterior sidewalls, and a bracket for mounting the spray ring having an elongated bore mounted on the slider.

Barcza, W.K.; Concordia, M.J.

1992-07-07

49

52. VIEW OF REMAINS OF ORIGINAL 1907 CONTROL PANEL, LOCATED ...  

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

52. VIEW OF REMAINS OF ORIGINAL 1907 CONTROL PANEL, LOCATED ON NORTH WALL OF EAST END OF CONTROL ROOM. PORTIONS OF THIS PANEL REMAINED IN USE UNTIL THE PLANT CLOSED. THE METERS AND CONTROLS ARE MOUNTED ON SOAPSTONE PANELS. THE INSTRUMENT IN THE LEFT CENTER OF THE PHOTOGRAPH IS A TIRRILL VOLTAGE REGULATOR. - New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Shore Drive, Greenwich, Fairfield County, CT

50

Mount Horeb Digital Collections  

NSDL National Science Digital Library

Visitors to Wisconsin often find themselves wandering through Mount Horeb, which is no surprise given its historical and cultural curiosities. This digital collection from the University of Wisconsin Digital Collections (UWDC) offers a range of printed materials depicting the early 20th century in this quaint town. The items here include church histories, family memories, books about the celebrated Norway Building, and other publications from the Mount Horeb Area Historical Society. All told, there are 23 documents here, including several rare photographs of John F. Kennedy giving campaign speeches during his 1960 trek through Wisconsin. It's worth noting that visitors can search the entire collection and, if they choose, go on to the complete state of Wisconsin collection homepage.

2012-01-01

51

Mount Rainier, Washington  

NSDL National Science Digital Library

This resource about Mount Rainier, a stratovolcano in the Cascade Range, features links to all aspects of the volcano, including its geographic setting, and geologic and eruptive history. Students learn that Mount Rainier is the highest and third-most voluminous volcano in the Cascades and that it dominates the Seattle-Tacoma area, where more than 1.5 million know it fondly as The Mountain. Also, it is the most dangerous volcano in the range, owing to the large population. One link leads to an extensive chart of the volcano's activity, highlighting extensive mudflows, debris flows, and lahars. Links labeled 'Special Items of Interest' include information about volcanic highlights and features, and points of interest. Other links lead to maps, graphics, images, publications, reports, and other items of interest involving this volcano and others.

52

Mount Wilson Observatory  

Microsoft Academic Search

Mount Wilson Observatory, located in the San Gabriel Mountains near Pasadena, California, was founded in 1904 by George Ellery Hale with financial support from Andrew Carnegie. In the 1920s and 1930s, working at the 2.5 m Hooker telescope, Edwin Hubble made two of the most important discoveries in the history of astronomy: first, that `nebulae' are actually island universes---galaxies---each with

P. Murdin

2000-01-01

53

Characterization of Engine Mount Elastomers.  

National Technical Information Service (NTIS)

As part of a project to develop methods for modelling the performance of engine mounts, several oil resistant alternative materials were prepared, and compared to conventional materials from mounts that are currently in service on the Canadian Patrol Frig...

J. P. Szabo

2005-01-01

54

Mount Mayon Erupts in the Philippines  

NSDL National Science Digital Library

Mount Mayon, one of the most active volcanoes in the Philippines, erupted on February 24, 2000, after lying dormant for eight months. The active volcano spewed lava, rocks, and ash repeatedly over the next three days. Volcanologists at the Philippine Institute of Volcanology and Seismology have warned of the likely possibility of bigger eruptions in the near future, with the greatest effects on the southeast and southwest sectors of the volcano. The volcano has already hurled molten boulders and 3,000-meter columns of ash into the air forcing an evacuation of some 50,000 people in a eight-kilometer radius around the crater. Volcanic debris estimated at 60 million metric tons are now lodged into the volcano's gullies. Heavy rainfall could cause more calamity in the form of mudflows. This week's In the News takes a closer look at the volcanic activity at Mount Mayon.

Ramanujan, Krishna.

55

Mount Everest snow plume: A case study  

NASA Astrophysics Data System (ADS)

A plume of snow blowing from the summit of Mount Everest is one of the most iconic images of the world's highest mountain. Its presence provides evidence of the strong jet stream winds that can buffet the mountain. In January 2004, astronauts onboard the International Space Station (ISS) observed a 15 to 20 km long snow plume emanating from the summit of Mount Everest. Remarkably little is known about these plumes and the role that they play in the redistribution of snow in the high Himalaya. In this paper we use a variety of meteorological datasets to show that the observed plume was the combination of high winds associated with the East Asian Jet Stream (EAJS) and a heavy snowfall that had occurred over the Himalaya during the preceding week. A simple model of a blown snow plume is shown to be consistent with the observations made from the ISS.

Moore, G. W. K.

2004-11-01

56

Wind tunnel testing of panel flutter control using piezoelectric actuation and iterative gain tuning  

Microsoft Academic Search

This is the second part of a companion paper entitled 'Unified Approach of Active Panel Vibration and Flutter Control using Piezoelectric Actuation and Iterative Root Locus Method.' This paper reports the wind-tunnel test results of panel flutter suppression which is based on the methodology described in the companion paper. Composite panels with one-sided surface- mounted piezoelectric actuators and strain sensors

Ming-Tsang Ho; Roger R. Chen; Li-Chun Chu

1997-01-01

57

Who discovered Mount Everest?  

NASA Astrophysics Data System (ADS)

The discovery that Mount Everest is the highest mountain in the world was made by the officers of the Survey of India. This organization measured a network of triangulation across India between 1800 and 1870. In order to reduce the measurements to geodetic coordinates, it was necessary to determine the size and shape of the earth. This was accomplished by measuring the length of an arc of the meridian under the direction of the Surveyor General, Sir George Everest. This measurement disagreed with the observations of the stars for latitude by 5 seconds of arc (530 ft or 162 m). In 1855, Pratt and Airy pointed out that the discrepancy was due to the gravitational effect of the Himalayas. Their work was the first indication that the material of the earth's crust under the mountains is lighter than that under plains. During the course of the survey the officers made observations on the snowy Himalayas. They were excluded from Nepal; observations had to be taken from more than 100 mi (160 km) away in jungles infested by malaria. Mount Everest was observed by three different officers between November 27, 1847, and January 17, 1850. The height of the mountain had to be determined by the (human) computers in the survey headquarters in Dehra Dun. The fact that it is the highest mountain in the Himalayas, and probably in the world, was announced by Surveyor General Andrew Waugh in 1856. It is not clear whether the chief computer who made the calculations was an Indian, Radanath Sikhdar, or an Englishman born in India of an Indian mother, John B. N. Hennesy. The local name for the mountain, if it had any, was unknown, so Waugh named it Mount Everest, in honor of the great scientist who was largely responsible for the accomplishments of the Survey of India.

Dickey, Parke A.

58

Solar panel module  

Microsoft Academic Search

A solar panel module is provided, wherein a plurality of solar panel units are electrically interconnected and supported within a low cost frame assembly, which may conveniently be formed from wood products. Each solar panel unit is provided with extending conductors for electrical connections with adjacent solar panels. Each solar panel unit is formed in a back-wall configuration where solar

P. Locke; G. A. Roderick

1980-01-01

59

Panel Roster Circulatory System Devices Panel Meeting ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPanel Roster Circulatory System Devices Panel Meeting Transcatheter ASD Occluders: Clinical Update and Review of Events May 24, 2012 ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

60

Panel Roster Orthopaedic and Rehabilitation Devices Panel ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Panel Roster Orthopaedic and Rehabilitation Devices Panel Classification Meeting May 21, 2013 Name Affiliation Role ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

61

Panel Roster Circulatory System Devices Panel Meeting ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Panel Roster Circulatory System Devices Panel Meeting CardioMEMS Champion HF Monitoring System December 8, 2011 ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

62

Mount Bailey, Oregon  

NSDL National Science Digital Library

This site features links to all aspects of Mt. Bailey, a volcano in the Cascade Range, including its geographic setting, and geologic and eruptive history. Mount Bailey is the southernmost volcano in a north-south-trending volcanic chain 10 kilometers long that rises west of Diamond Lake. This mountain was originally know as Old Baldy, and was probably mistakenly recorded as Old Bailey. It was known as Youxlokes to the Klamath, which meant Medicine Mountain and, according to legend, medicine men and priests often feasted on the summit and communed with the upper world. Links labeled 'Special Items of Interest' lead to information about volcanic highlights and features, and points of interest. Other links lead to maps, graphics, images, publications, reports, and other items of interest involving this volcano and others.

63

Mount Adams, Washington  

NSDL National Science Digital Library

This site contains links to information about Mt. Adams, a volcano in the Cascade Range. The site features links to all aspects of the volcano, such as its geographic setting, geologic and eruptive history, and historical information. Hellroaring Volcano and Underwood Mountain are mentioned as two older volcanoes associated with Mount Adams and are partially responsible for the numerous lava fields, which include Big Lava Bed, Goat Rocks Volcanic Field, Indian Heaven Volcanic Field, and the Simcoe Mountains volcanic field. The site also has information about historical debris avalanches and lahars that have influenced river drainages in the area and created Trout Lake. Links labeled 'Special Items of Interest' include information about volcanic highlights and features, and points of interest. Other links lead to maps, graphics, images, publications, reports, and other items of interest involving this volcano and others.

64

Mount Baker, Washington  

NSDL National Science Digital Library

This site contains information about Mt. Baker, a volcano in the Cascade Range. The site features links to all aspects of the volcano, including its geographic setting, and geologic and eruptive history. Named for third lieutenant Joseph Baker of the Vancouver exploration, Mt. Baker sits atop a similar older volcanic cone called Black Buttes volcano, which was active between 500,000 and 300,000 years ago. Historical activity at Mount Baker includes several explosions during the mid-19th century, which were witnessed from the Bellingham area, and since the late 1950s, numerous small-volume debris avalanches. Links labeled 'Special Items of Interest' include information about volcanic highlights and features, and points of interest. Other links lead to maps, graphics, images, publications, reports, and other items of interest involving this volcano and others.

65

Panel Discussion  

NASA Astrophysics Data System (ADS)

Panelists: Arthur Bienenstock, Stanford University Cherry Ann Murray, Lucent Technologies Venkatesh Narayanamurti, University of California-Santa Barbara Paul Peercy, SEMI-SEMATECH Robert Richardson, Cornell University James Roberto, Oak Ridge National Laboratory The Board on Physics and Astronomy is undertaking a series of reassessments of all branches of physics as the foundation of a new physics survey. As part of this project, a Committee on Condensed Matter and Materials Physics has been established under the leadership of Venkatesh Narayanamurti of the University of California-Santa Barbara. The committee has been working since June on a study that will include an illustrative recounting of major recent achievements; identification of new opportunities and challenges facing the field; and articulation-for leaders in government, industry, universities, and the public at large-of the important roles played by the field in modern society. An especially urgent issue is how to maintain the intellectual vitality of condensed matter and materials physics, and its contributions to the well-being of the United States, in an era of limited resources. The forum will feature a panel of materials researchers who are members of the Committee on Condensed Matter and Materials Physics. They will give a brief report on the status of the study and engage in a dialogue with the audience about issues facing the condensed matter and materials physics community. Broad community input is vital to the success of the study. Please come and make your voice heard!

Langer, James

1997-03-01

66

Mount Zion Cemetery, 1975 Plot Plan Mount Zion Cemetery/ ...  

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

Mount Zion Cemetery, 1975 Plot Plan - Mount Zion Cemetery/ Female Union Band Cemetery, Bounded by 27th Street right-of-way N.W. (formerly Lyons Mill Road), Q Street N.W., & Mill Road N.W., Washington, District of Columbia, DC

67

Kinematic high bandwidth mirror mount  

DOEpatents

An adjustable mirror mount system for a mirror is disclosed comprising a mirror support having a planar surface thereon, a mirror frame containing a mirror and having a planar surface behind the mirror facing the planar surface of the mirror support and parallel to the reflecting surface of the mirror and mounted pivotally to the mirror support at a point central to the frame, a first adjustment means between the mirror support and the mirror frame spaced from the central pivot mount for adjusting the movement of the mirror along one axis lying in the plane of the planar surface of the mirror frame; and a second adjustment means between the mirror support and the mirror frame spaced from the central pivot mount for adjusting the movement of the mirror along a second axis lying in the plane of the planar surface of the mirror frame and perpendicular to the first axis. 7 figures.

Kuklo, T.C.

1995-03-21

68

Kinematic high bandwidth mirror mount  

DOEpatents

An adjustable mirror mount system for a mirror is disclosed comprising a mirror support having a planar surface thereon, a mirror frame containing a mirror and having a planar surface behind the mirror facing the planar surface of the mirror support and parallel to the reflecting surface of the mirror and mounted pivotally to the mirror support at a point central to the frame, a first adjustment means between the mirror support and the mirror frame spaced from the central pivot mount for adjusting the movement of the mirror along one axis lying in the plane of the planar surface of the mirror frame; and a second adjustment means between the mirror support and the mirror frame spaced from the central pivot mount for adjusting the movement of the mirror along a second axis lying in the plane of the planar surface of the mirror frame and perpendicular to the first axis.

Kuklo, Thomas C. (Oakdale, CA)

1995-01-01

69

Radiology Advisory Panel Meeting  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Radiology Advisory Panel Meeting Robert Ochs, PhD Branch Chief ... 36 Page 37. Radiology Advisory Panel Meeting Jingjing Ye, PhD ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

70

Panel studies and migration  

Microsoft Academic Search

Attrition is a critical concern in panel data sets, and migration processes are an important influence affecting attrition. In this paper, we examine patterns of attrition in a household panel in a setting, Northeast Thailand, where migration effects are visible because refusing to participate is essentially non-existent. We develop a model of locating panel members, and then examine different stages

Ronald R. Rindfuss; Toshiko Kaneda; Arpita Chattopadhyay; Chanya Sethaput

2007-01-01

71

Optimum operating conditions of a solar cell panel and prediction of solar radiation in Sanaa, Yemen  

Microsoft Academic Search

Results of a study of the performance of solar cells under nominal operating conditions in Yemen are reported. The solar cell panel comprised 14 Si cells of .003 sq m surface area each, and was mounted on a rooftop with the solar radiation being measured by a pyranometer. Further monitoring was performed of the panel surface temperature, the ambient air

A. Khogali; M. R. I. Ramadan

1982-01-01

72

Solar absorber panel, collector assembly and installation method  

Microsoft Academic Search

A solar absorber panel assembly has a pair of substantially parallel plates sealed together at their perimeter. A raised integral header is formed in one of the plates. An external header is in fluid communication with the integral header and is spaced from and mechanically connected to the plates. A solar collector assembly includes hanger brackets mounted on an inclined

1980-01-01

73

Light sharing in multi-flat-panel-PMT PEM detectors  

Microsoft Academic Search

Large are a detectors, such as those used in positron emission mammography (PEM) and scintimammography, utilize arrays of discrete semtillator elements mounted on arrays of position sensitive photomultiplier tubes (PSPMT). Scintillator elements can be packed very densely (minimizing area between elements), allowing good detection sensitivity and spatial resolution. And, while new flat panel PSPMTS have minimal inactive edges, when they

Raymond R. Raylman; Stan Majewski; Michael R. Mayhugh

2006-01-01

74

Analysis of Wind Forces on RoofTop Solar Panel  

Microsoft Academic Search

Structural loads on solar panels include forces due to high wind, gravity, thermal expansion, and earthquakes. International Building Code (IBC) and the American Society of Civil Engineers are two commonly used approaches in solar industries to address wind loads. Minimum Design Loads for Buildings and Other Structures (ASCE 7-02) can be used to calculate wind uplift loads on roof-mounted solar

Yogendra Panta; Ganesh Kudav

2011-01-01

75

Ice Volumes on Cascade Volcanoes: Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta  

USGS Publications Warehouse

During the eruptions of Mount St. Helens the occurrence of floods and mudflows made apparent the need for predictive water-hazard analysis of other Cascade volcanoes. A basic requirement for such analysis is information about the volumes and distributions of snow and ice on other volcanoes. A radar unit contained in a backpack was used to make point measurements of ice thickness on major glaciers of Mount Rainier, Wash.; Mount Hood, Oreg.; the Three Sisters, Oreg.; and Mount Shasta, Calif. The measurements were corrected for slope and were used to develop subglacial contour maps from which glacier volumes were measured. These values were used to develop estimation methods for finding volumes of unmeasured glaciers. These methods require a knowledge of glacier slope, altitude, and area and require an estimation of basal shear stress, each estimate derived by using topographic maps updated by aerial photographs. The estimation methods were found to be accurate within ?20 percent on measured glaciers and to be within ?25 percent when applied to unmeasured glaciers on the Cascade volcanoes. The estimation methods may be applicable to other temperate glaciers in similar climatic settings. Areas and volumes of snow and ice are as follows: Mount Rainier, 991 million ft2, 156 billion ft3; Mount Hood, 145 million ft2, 12 billion ft3; Three Sisters, 89 million ft2, 6 billion ft3; and Mount Shasta, 74 million ft2, 5 billion ft3. The distribution of ice and firn patches within 58 glacierized basins on volcanoes is mapped and listed by altitude and by watershed to facilitate water-hazard analysis.

Driedger, Carolyn L.; Kennard, Paul M.

1986-01-01

76

Panel Roster Circulatory System Devices Panel Meeting ...  

Center for Biologics Evaluation and Research (CBER)

Text Version... 2011 Name Affiliation Role Clyde Yancy MD, FACC, FAHA, MACP Northwestern University Chicago, IL Panel Chair David ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

77

VIBRATION DAMPING AND SHOCK MOUNT  

DOEpatents

A shock absorbing mount in which vibrations are damped by an interference fit between relatively movable parts of the mount is described. A pair of generally cup-shaped parts or members have skirt portions disposed in an oppositely facing nesting relationship with the skirt of one member frictionally engaging the skirt of the other. The outermost skirt may be slotted to provide spring-like segments which embrace the inner skirt for effecting the interference fit. Belleville washers between the members provide yieldable support for a load carried by the mount. When a resonant frequency of vibration forces acting upon the moumt attains a certain level the kinetic energy of these forces is absorbed by sliding friction between the parts. (AEC)

Stevens, D.J.; Forman, G.W.

1963-12-10

78

A new head mounted display system with adjustable disparity for high depth-performance  

Microsoft Academic Search

A new head mounted display (HMD) system with high depth-performance is proposed for virtual reality. To realize high depth-performance for every observer, we experimentally measure the individual difference on disparity which generates stereoscopic views. Using the experimental results, we design a disparity adjustment panel to tune the individual difference of disparity. It is experimentally proven that the proposed HMD system

Jing-Long Wu; Masaomi NAKAHATA; Sadao KAWAMURA

1995-01-01

79

Mounting system for displaying a bird  

US Patent & Trademark Office Database

An apparatus is provided for mounting and displaying a taxidermy display, usually a bird or fowl. A bird is mounted on a rod appropriately sized to the birds size and weight. Said rod may be bent to effect the desired presentation of the mounted bird. Types of mounts include landing birds, flying birds right and left directions, or others not traditionally used. The bird is secured on the rod eliminating wires for holding the bird and eliminating driftwood as a mounting base. The resulting combination of the rod with its ability to be bent to and then holding the desired position, the affixing of the bird to that rod, and the affixing of the rod to a mounting base which may be securely affixed to a wall provides unsurpassed stability for the mounted bird. The rod being fixedly or adjustably joined to the mounting base also provides a permanent and more stable mounting apparatus than the heretofore unstable methods of mounting birds.

2003-05-13

80

Strut-Mounted Drag Balance.  

National Technical Information Service (NTIS)

A drag balance for measuring drag forces on a model is described which mounts within a hollow region of a streamlined strut. The strut is attached to a carriage for towing the model through a medium. The drag balance has a ground frame attached inside the...

W. H. Nedderman

1997-01-01

81

[Water cults on Soratte Mount].  

PubMed

Mount Soratte is a limestone ridge that rises on a lonely plateau of Pliocene tuff on the right of the Tiber, about forty kilometers North of Rome. Studies related to human settlements during prehistory in this territory have been sporadic and occasional. The first evidence of prehistoric cults on mount Soratte has been found in the early Fifties when ajar, dating back to Neolithic times, was discovered in the cave of the Meri. The jar was placed in a position to be always filled of water and indicates the existence of ancient practices of worship linked to groundwater. In the Middle Ages, although caves became a step towards the Hell, dripping caves were often associated with the magical-religious and therapeutic aspects of water linked to fertility in the popular imagination. In the cave church of the Saint Romana, on the eastern slope of Mount Soratte close to Meri, there is a small marble basin near the altar and the water drips from the rock above it. This water is taken out for devotion and drunk by mothers who did not get milk from their breasts. Recently, the water of the Saint Romana would have drained as a result of an act of sacrilege, albeit unintentionally, as reported in a oral testimony. Overall, the territory of Mount Soratte is characterized by a sharp and clear karst. This causes the water, that collects on the inside, coming out in many springs all around the valley. This water is collected to supply fountains used years ago by farmers and livestock and nowadays may represent a cultural space of social life with the aim to build a strong link with the territory and a new awareness of the past and history of the countryside around Mount Soratte. PMID:23057207

Falchetti, Mario; Ottini, Laura

2011-01-01

82

Advanced solar panel designs  

Microsoft Academic Search

Solar panel designs that utilize new high-efficiency solar cells and lightweight rigid panel technologies are described. The resulting designs increase the specific power (W\\/kg) achievable in the near-term and are well suited to meet the demands of higher performance small satellites (smallsats). Advanced solar panel designs have developed and demonstrated on two NASA contracts at TECSTAR. The first used 19%

E. L. Ralph; E. B. Linder

1996-01-01

83

Solar reflection panels  

SciTech Connect

A solar collector comprising a glass mirror, and a composite panel, wherein the back of the mirror is affixed to a front surface of the composite panel. The composite panel comprises a front sheet affixed to a surface of a core material, preferably a core material comprising a honeycomb structure, and a back sheet affixed to an opposite surface of the core material. The invention may further comprise a sealing strip, preferably comprising EPDM, positioned between the glass mirror and the front surface of the composite panel. The invention also is of methods of making such solar collectors.

Diver, Jr., Richard B. (Albuquerque, NM); Grossman, James W. (Albuquerque, NM); Reshetnik, Michael (Boulder, CO)

2006-07-18

84

Modular solar insolation panels  

Microsoft Academic Search

A modular system of solar insolation panels having sun tracking capability and adapted to be installed directly upon a roof structure and integrated with the surrounding roofing, is comprised of prismatic lenses embodied in a multiplicity of transparent tubes disposed in normal relation to the traverse plane of the sun, and arranged upon an insulation panel and with corner fittings

Meckler

1981-01-01

85

Reinventing the solar panel  

Microsoft Academic Search

This article discusses new technology in solar panels. PowerSource is a solar collector which not only is less expensive than conventional panels to purchase and install, but also increases the electrical output by almost 20%. This article describes the results of testing this system.

Scanlon

1995-01-01

86

Analysis of Panel Data  

Microsoft Academic Search

Panel data models have become increasingly popular among applied researchers due to their heightened capacity for capturing the complexity of human behavior as compared to cross-sectional or time series data models. As a consequence, richer panel data sets also have become increasingly available. This 2003 second edition is a substantial revision of the highly successful first edition of 1986. Advances

Cheng Hsiao

1986-01-01

87

Panel Roster Dental Products Panel of the Medical Devices ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Panel Roster Dental Products Panel of the Medical Devices Advisory Committee Device Classification Panel Name Affiliation Role ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

88

Puncture panel optimization  

SciTech Connect

Sandia National Laboratories developed the TRansUranic PACkage Transporter (TRUPACT) to transport defense contact-handled transuranic wastes. The package has been designed to meet the normal and hypothetical accident conditions in 10CFR71 which includes the demonstrated ability to survive a 1-meter drop onto a mild steel pin. The puncture protection is provided by puncture resistant panels. In conjunction with the development of TRUPACT, a series of experiments has been conducted to reduce the weight of the puncture resistant panels. The initial scoping tests resulted in a preliminary design incorporating 30 layers of Kevlar. This design has been shown to meet the regulatory puncture test. To reduce the weight of this panel, subscale tests were conducted on panels utilizing Kevlar yarns with varying mass per unit length (denier) as well as different resins. This paper reviews the testing undertaken in the original panel development and discusses the results obtained from the recent subscale and full-scale optimization tests.

Glass, R.E.; Longenbaugh, R.S. Longenbaugh, R.S.

1986-01-01

89

The influence of depth of focus on visibility of monocular head-mounted display symbology in simulation and training applications  

Microsoft Academic Search

The Joint Helmet Mounted Cueing System (JHMCS),is being considered for integration into the F-15, F-16, and F-18 aircraft. If this integration occurs, similar monocular head-mounted displays (HMDs) will need to be integrated with existing out-the-window simulator systems for training purposes. One such system is the Mobile Modular Display for Advanced Research and Training (M2DART), which is constructed with flat-panel rear-projection

Marc D. Winterbottom; Robert Patterson; Byron J. Pierce; Christine Covas; Jennifer Winner

2005-01-01

90

Structural Report: Piper Aztec Flare Mount.  

National Technical Information Service (NTIS)

The report deals with the mounting of silver iodide flares which are used to seed clouds. The mount was installed spanwise aft of the wing trailing edge. Chordwise members extend from the mount and pick up the outboard wing rib bounding the fuel cells and...

A. Ferenc

1968-01-01

91

Bonded mounts for small cryogenic optics  

Microsoft Academic Search

Adhesive bonded mounting of small optics for use at cryogenic temperatures provides improved heat transfer, low optical surface distortion, and reduced cost in comparison with conventional flexural mounts. A design methodology based on the thermo-elastic properties of the adhesive and its interaction with the mounted optic is presented. Key factors in the selection of the appropriate adhesive are high thermal

Daniel Vukobratovich; Ken A. Fetterhoff; James R. Myers; Paul D. Wheelwright; George R. Cunnington

2000-01-01

92

Holding fixture for metallographic mount polishing  

DOEpatents

A fixture is described for holding mounted specimens for polishing, having an arm; a body attached to one end of the arm, the body having at least one flange having an opening to accommodate a mounted specimen; and a means applying pressure against the outer surface of the mounted specimen to hold the specimen in contact with the polishing surface. 3 figs.

Barth, C.H.; Cramer, C.E.

1997-12-30

93

Holding fixture for metallographic mount polishing  

DOEpatents

A fixture for holding mounted specimens for polishing, having an arm; a body attached to one end of the arm, the body having at least one flange having an opening to accommodate a mounted specimen; and a means applying pressure against the outer surface of the mounted specimen to hold the specimen in contact with the polishing surface.

Barth, Clyde H. (Ballston Lake, NY); Cramer, Charles E. (Schenectady, NY)

1997-01-01

94

Holding fixture for metallographic mount polishing  

DOEpatents

A fixture for holding mounted specimens for polishing, having an arm; a body attached to one end of the arm, the body having at least one flange having an opening to accommodate a mounted specimen; and a means applying pressure against the outer surface of the mounted specimen to hold the specimen in contact with the polishing surface.

Barth, C.H.; Cramer, C.E.

1996-12-31

95

Engineering of Head-Mounted Projective Displays  

Microsoft Academic Search

Head-mounted projective displays ~HMPD's! are a novel type of head-mounted display. A HMPD consists of a miniature projection lens mounted upon the user's head and retroreflective sheeting material placed strategically in the environment. First, the imaging concept of a HMPD is reviewed and its potential advantages and disadvantages are discussed. The design and a bench prototype implemen- tation are then

Hong Hua; Axelle Girardot; Chunyu Gao; Jannick P. Rolland

2000-01-01

96

Electrode Mounting for Potentiostatic Anodic Polarization Studies.  

National Technical Information Service (NTIS)

Samples of an arc melted, 10Cr- 10Ni- Fe alloy were mounted with the Stern-Makrides compression gasket assembly. Some electrodes were mounted directly, others were partially encased or coated with various resins prior to mounting. Potentiostatic anodic po...

N. D. Greene W. D. France B. E. Wilde

1965-01-01

97

Animated Panel Logic Programming Techniques.  

National Technical Information Service (NTIS)

The study was concerned with methods, materials and techniques for producing panel artwork and equipment for programming and sequence control as applied to animated training panels. Two basic methods of producing the display panel itself were investigated...

1968-01-01

98

Make Your Own Solar Panel.  

ERIC Educational Resources Information Center

|Presents an activity in which students make a simulated solar panel to learn about the principles behind energy production using solar panels. Provides information about how solar panels function to produce energy. (MCO)|

Suzuki, David

1992-01-01

99

Ballast-mounted PV arrays: Phase 2 final report  

SciTech Connect

The expansive flat rooftops of industrial and commercial buildings across America offer the largest, most secure, and potentially least-cost real estate opportunity to install massive amounts of solar photovoltaic generation in the building sector. Unfortunately, mechanical penetration of roofing membranes is very expensive and perceived by building owners and operators to increase the likelihood of leaking. In response Ascension Technology has pioneered the development of low-cost ballasted approaches for mounting PV arrays. Recently, however, we have experienced our first two instances in which strong winds have moved our arrays on rooftops and heightened our interest, and the PV industries' need, to develop zero-penetration mounting techniques that are more secure, yet remain low in cost. In this PV BONUS project, Ascension Technology and its partners addressed wind loading on solar panels and the suitability of using frictional forces between ballast trays and roofing materials to resist PV arrays sliding on rooftops. The primary goal of the project is to capture the potential cost savings made possible by ballast-mounting by showing under what conditions it can satisfy wind loading concerns. A secondary goal is to address a more geographically constrained concern regarding withstanding seismic forces.

Edward C. Kern

2000-03-01

100

POPOVER Review Panel report  

SciTech Connect

The POPOVER series of high explosive (HE) certification tests was conducted at the Big Explosives Experimental Facility (BEEF) in Area 4 of the Nevada Test Site (NTS). The two primary objectives of POPOVER were to certify that: (1) BEEF meets DOE requirements for explosives facilities and is safe for personnel-occupied operations during testing of large charges of conventional HE. (2) Facility structures and equipment will function as intended when subjected to the effects of these charges. After careful analysis of test results, the POPOVER Review Panel concludes that the POPOVER series met both objectives. Further details on the Review Panel`s conclusions are included in Section 7--Findings and Recommendations.

Davito, A.; Baker, C.J.; King, C.J.; Costerus, B.; Nelson, T.; Prokosch, D.; Pastrnak, J.; Grace, P.

1996-04-10

101

Orthopaedic and Rehabilitation Devices Panel  

Center for Biologics Evaluation and Research (CBER)

... 2010 Meeting Materials of the Orthopaedic and Rehabilitation Devices Panel; ... Orthopaedic and Rehabilitation Devices Panel. Description. ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

102

Dual resolution, vacuum compatible optical mount  

DOEpatents

An optical mount for an optical element includes a mounting plate, a lever arm pivot coupled to mounting plate, and an adjustment plate. The optical mount also includes a flexure pivot mechanically coupling the adjustment plate to the mounting plate and a lever arm. The optical mount further includes a first adjustment device extending from the adjustment plate to make contact with the lever arm at a first contact point. A projection of a line from the first contact point to a pivot point, measured along the lever arm, is a first predetermined distance. The optical mount additionally includes a second adjustment device extending from the adjustment plate to make contact with the lever arm at a second contact point. A projection of a line from the second contact point to the pivot point, measured along the lever arm, is a second predetermined distance greater than the first predetermined distance.

Halpin, John Michael (Tracy, CA)

2011-10-04

103

Nozzle and shroud assembly mounting structure  

DOEpatents

The present nozzle and shroud assembly mounting structure configuration increases component life and reduces maintenance by reducing internal stress between the mounting structure having a preestablished rate of thermal expansion and the nozzle and shroud assembly having a preestablished rate of thermal expansion being less than that of the mounting structure. The mounting structure includes an outer sealing portion forming a cradling member in which an annular ring member is slidably positioned. The mounting structure further includes an inner mounting portion to which a hooked end of the nozzle and shroud assembly is attached. As the inner mounting portion expands and contracts, the nozzle and shroud assembly slidably moves within the outer sealing portion. 3 figs.

Faulder, L.J.; Frey, G.A.; Nielsen, E.W.; Ridler, K.J.

1997-08-05

104

Nozzle and shroud assembly mounting structure  

DOEpatents

The present nozzle and shroud assembly mounting structure configuration increases component life and reduces maintenance by reducing internal stress between the mounting structure having a preestablished rate of thermal expansion and the nozzle and shroud assembly having a preestablished rate of thermal expansion being less than that of the mounting structure. The mounting structure includes an outer sealing portion forming a cradling member in which an annular ring member is slidably positioned. The mounting structure further includes an inner mounting portion to which a hooked end of the nozzle and shroud assembly is attached. As the inner mounting portion expands and contracts, the nozzle and shroud assembly slidably moves within the outer sealing portion.

Faulder, Leslie J. (San Diego, CA); Frey, deceased, Gary A. (late of Seattle, WA); Nielsen, Engward W. (El Cajon, CA); Ridler, Kenneth J. (San Diego, CA)

1997-01-01

105

Concentrating Solar Panels.  

National Technical Information Service (NTIS)

Soliant Energy is a venture-capital-backed startup focused on bringing advanced concentrating solar panels to market. Our fundamental innovation is that we are the first company to develop a racking solar concentrator specifically for commercial rooftop a...

M. Deck

2010-01-01

106

Radiological Devices Panel  

Center for Biologics Evaluation and Research (CBER)

... The Radiological Devices Panel reviews and evaluates data concerning the safety and effectiveness of marketed and investigational diagnostic or ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

107

Cyber Panel Experimentation Program.  

National Technical Information Service (NTIS)

This CyberPanel Experimentation Program final report describes two experiments: (1) an experimental validation of correlation systems as well as (2) a validation of autonomic response systems. The goal of this effort was to assess the overall progress in ...

J. Haines D. K. Ryder L. Tinnel S. Taylor

2003-01-01

108

Performance effects of mounting a helmet-mounted display on the ANVIS mount of the HGU-56P helmet  

NASA Astrophysics Data System (ADS)

The U.S. Army, under the auspices of the Air Warrior Product Office, is developing a modular helmet-mounted display (HMD) for four aircraft series within its helicopter fleet. A design consideration is mounting the HMDs to the HGU- 56P Aviator's Night Vision Imaging System (ANVIS) mount. This particular mount is being considered, presumably due to its inherent cost savings, as the mount is already part of the helmet. Mounting the HMD in this position may have consequences for the daylight performance of these HMDs, as well as increasing the forward weight of the HMD. The latter would have consequences for helmet weight and center-of-mass biodynamic issues. Calculations were made of the increased luminance needed as a consequence of mounting the HMD in front of an HGU-56P tinted visor as opposed to mounting it behind the visor. By mounting in front of the helmet's visor, the HMD's light output will be filtered as light coming from the outside world. Special consideration then would have to be given to the HMD's light source selection process, as not to select a source that would differentially reduce luminance by a mounted visor (e.g., laser protection visors) compared to the ambient light in the aviator's field-of-view.

Harding, Thomas H.; Martin, John S.; Rash, Clarence E.

2006-06-01

109

Gas filled panel insulation  

DOEpatents

A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation. 18 figures.

Griffith, B.T.; Arasteh, D.K.; Selkowitz, S.E.

1993-12-14

110

Composite sandwich panel design  

Microsoft Academic Search

Development of damage-tolerant and fail-safe designs for composite-sandwich panel which is the primary aircraft structures poses a formidable challenge due to the many potential failure modes and lack of structural redundancy in sandwich designs. This challenge has inspired researchers to develop a way to predict facesheet tension rupture or compression failure of impact-damaged composite sandwich panels, and are working on

Steven G. Russell; Weichuan Lin; Han-Pin Kan; Ravi B. Deo

1995-01-01

111

Pop-Art Panels  

ERIC Educational Resources Information Center

|James Rosenquist's giant Pop-art panels included realistic renderings of well-known contemporary foods and objects, juxtaposed with famous people in the news--largely from the 1960s, '70s and '80s--and really serve as visual time capsules. In this article, eighth-graders focus on the style of James Rosenquist to create their own Pop-art panel

Alford, Joanna

2012-01-01

112

Flat-panel displays  

Microsoft Academic Search

The current status of flat-panel displays is surveyed. It is noted that novel plasma display structures and improvements in electroluminescence, paced by gains in high-voltage ICs, have led to compact computers with emissive flat panels. 'Supertwist' LCDs with greatly enhanced performance are reaching the portable computer market, while pocket TV sets with LCDs addressed by integrated thin-film transistors presage the

Allan R. Kmetz

1987-01-01

113

Pop-Art Panels  

ERIC Educational Resources Information Center

James Rosenquist's giant Pop-art panels included realistic renderings of well-known contemporary foods and objects, juxtaposed with famous people in the news--largely from the 1960s, '70s and '80s--and really serve as visual time capsules. In this article, eighth-graders focus on the style of James Rosenquist to create their own Pop-art panel that…

Alford, Joanna

2012-01-01

114

Mount Rainier, a decade volcano  

SciTech Connect

Mount Rainier, recently designated as a decade volcano, is a 14,410 foot landmark which towers over the heavily populated southern Puget Sound Lowland of Washington State. It last erupted in the mid-1800's and is an obvious threat to this area, yet Rainier has received little detailed study. Previous work has divided Rainier into two distinct pre-glacial eruptive episodes and one post-glacial eruptive episode. In a pilot project, the authors analyzed 253 well-located samples from the volcano for 27 major and trace elements. Their objective is to test the value of chemical compositions as a tool in mapping the stratigraphy and understanding the eruptive history of the volcano which they regard as prerequisite to determining the petrogenesis and potential hazard of the volcano. The preliminary data demonstrates that variation between flows is significantly greater than intra-flow variation -- a necessary condition for stratigraphic use. Numerous flows or groups of flows can be distinguished chemically. It is also apparent from the small variation in Zr abundances and considerable variation in such ratios as Ba/Nb that fractional crystallization plays a subordinate role to some form of mixing process in the origin of the Mount Rainier lavas.

Kuehn, S.C.; Hooper, P.R. (Washington State Univ., Pullman, WA (United States). Dept. of Geology); Eggers, A.E. (Univ. of Puget Sound, Tacoma, WA (United States). Dept. of Geology)

1993-04-01

115

Evolution of integrated panel structural design and interfaces for PV power plants  

NASA Astrophysics Data System (ADS)

The evolution of integrated photovoltaic (PV) panel design at ARCO Solar is discussed. Historically, framed PV modules of about 1 x 4-ft size were individually mounted in the field on fixed support structures and interconnected electrically with cables to build higher-power arrays. When ARCO Solar saw the opportunity in 1982 to marry its PV modules with state-of-the-art heliostat trackers developed by ARCO Power Systems, it became obvious that mounting individual modules was impractical. For this project, the framed modules were factory-assembled into panels and interconnected with cables before being mounted on the trackers. Since then, ARCO Solar made considerable progress and gained substantial experience in the design and fabrication of large PV panels. Constraints and criteria considered in these design activities included static and dynamic loads; assembly and transportation equipment and logistics, structural and electrical interfaces, and safety and grounding concerns.

Arnett, J. C.; Anderson, A. J.; Robertson, R. E.

1983-11-01

116

Sag compensated vibration isolation mount  

NASA Astrophysics Data System (ADS)

A sag-compensated vibration isolation mount includes a cylindrical rubber body element and a circular band extending around the body element. The band is formed from a shape-memory alloy metal which has a predetermined transition temperature. The band is operative for restricting outward bulging and sagging of the body element when the body element is subjected to an axial load at a temperature above the transition temperature. The band has a first length at a temperature above the transition temperature and it is stretchable to a second length at a temperature below the transition temperature. At temperatures below the transition temperature, the body element normally stretches the band to its second length. However, when the band is heated above its transition temperature, the band rapidly decreases in length to its first length to forcibly compress the body element and restrict outward bulging of the body element.

Dickinson, Stuart C.

1994-07-01

117

SAG compensated vibration isolation mount  

NASA Astrophysics Data System (ADS)

A sag-compensated vibration isolation mount includes a cylindrical rubber body element and a circular band extending around the body element. The band is formed from a shape-memory alloy metal which has a predetermined transition temperature. The band is operative for restricting, outward bulging and sagging of the body element when the body element is subjected to an axial load at a temperature above the transition temperature. The band has a first length at a temperature above the transition temperature and it is stretchable to a second length at a temperature below the transition temperature. At temperatures below the transition temperature, the body element normally stretches the band to its second length. However, when the band is heated above its transition temperature, the band rapidly decreases in length to its first length to forcibly compress the body element and restrict outward bulging of the body element.

Dickinson, Stuart

1993-08-01

118

In Brief: Mount Wilson centennial  

NASA Astrophysics Data System (ADS)

The 60-inch reflecting telescope at Mount Wilson Observatory, in southern California, which helped scientists measure the Milky Way and determine our solar system's position within it, celebrates its 100th anniversary in December. ``The 60-inch continued the Copernican Revolution by dethroning the Sun from the center of our galaxy,'' noted observatory director Harold McAlister. The telescope, with its silver-on-glass reflectors, also established the basic design for observatory telescopes on Earth. Capable of operating in several different optical configurations, the telescope was the first one built primarily for photographic and spectrographic use. With its 5-foot-diameter mirror, the telescope was the largest in the world until 1917. The telescope is retired from active science but is made available to groups for viewing astronomical objects. The observatory was founded by astronomer George Ellery Hale under the auspices of the Carnegie Institution of Washington. For more information, visit http://www.mtwilson.edu.

Showstack, Randy

2008-11-01

119

38. INTERIOR VIEW OF FOUNDRY SHOWING HEAVY TIMBER ROOF TRUSSES ...  

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

38. INTERIOR VIEW OF FOUNDRY SHOWING HEAVY TIMBER ROOF TRUSSES AND TRAVELING CRANE. - Baltimore & Ohio Railroad, Mount Clare Shops, South side of Pratt Street between Carey & Poppleton Streets, Baltimore, Independent City, MD

120

Oven wall panel construction  

DOEpatents

An oven roof or wall is formed from modular panels, each of which comprises an inner fabric and an outer fabric. Each such fabric is formed with an angle iron framework and somewhat resilient tie-bars or welded at their ends to flanges of the angle irons to maintain the inner and outer frameworks in spaced disposition while minimizing heat transfer by conduction and permitting some degree of relative movement on expansion and contraction of the module components. Suitable thermal insulation is provided within the module. Panels or skins are secured to the fabric frameworks and each such skin is secured to a framework and projects laterally so as slidingly to overlie the adjacent frame member of an adjacent panel in turn to permit relative movement during expansion and contraction.

Ellison, Kenneth (20 Avondale Cres., Markham, CA); Whike, Alan S. (R.R. #1, Caledon East, both of Ontario, CA)

1980-04-22

121

Predicting the vibroacoustic response of satellite equipment panels  

NASA Astrophysics Data System (ADS)

Modern satellites are constructed of large, lightweight equipment panels that are strongly excited by acoustic pressures during launch. During design, performing vibroacoustic analyses to evaluate and ensure the integrity of the complex electronics mounted on the panels is critical. In this study the attached equipment is explicitly addressed and how its properties affect the panel responses is characterized. FEA and BEA methods are used to derive realistic parameters to input to a SEA hybrid model of a panel with multiple attachments. Specifically, conductance/modal density and radiation efficiency for nonhomogeneous panel structures with and without mass loading are computed. The validity of using the spatially averaged conductance of panels with irregular features for deriving the structure modal density is demonstrated. Maidanik's proposed method of modifying the traditional SEA input power is implemented, illustrating the importance of accounting for system internal couplings when calculating the external input power. The predictions using the SEA hybrid model agree with the measured data trends, and are found to be most sensitive to the assumed dynamic mass ratio (attachments/structure) and the attachment internal loss factor. Additional experimental and analytical investigations are recommended to better characterize dynamic masses, modal densities and loss factors.

Conlon, S. C.; Hambric, S. A.

2003-03-01

122

Composite sandwich panel design  

NASA Astrophysics Data System (ADS)

Development of damage-tolerant and fail-safe designs for composite-sandwich panel which is the primary aircraft structures poses a formidable challenge due to the many potential failure modes and lack of structural redundancy in sandwich designs. This challenge has inspired researchers to develop a way to predict facesheet tension rupture or compression failure of impact-damaged composite sandwich panels, and are working on a process to predict facesheet local buckling failures at impact sites. Research has also produced a design methodology for sizing tear straps to fail-safe residual strength levels.

Russell, Steven G.; Lin, Weichuan; Kan, Han-Pin; Deo, Ravi B.

1995-04-01

123

Analysis of Panel Data  

NASA Astrophysics Data System (ADS)

Panel data models have become increasingly popular among applied researchers due to their heightened capacity for capturing the complexity of human behavior, as compared to cross-sectional or time series data models. This second edition represents a substantial revision of the highly successful first edition (1986). Recent advances in panel data research are presented in an accessible manner and are carefully integrated with the older material. The thorough discussion of theory and the judicious use of empirical examples make this book useful to graduate students and advanced researchers in economics, business, sociology and political science.

Hsiao, Cheng

2003-02-01

124

Structural considerations in designing magnetorheological fluid mounts  

NASA Astrophysics Data System (ADS)

Modern vehicles have been increasingly equipped with advanced technologies such as hybrid and cylinder-on-demand to enhance fuel efficiency. These technologies also come with vibration problems due to the switching between the power sources or the variation of the number of active cylinders. To mitigate these vibrations, a large variety of vibration isolators have been proposed, ranging from passive to active isolators. Semi-active mounts are often preferred to other solutions because of their overall low power requirement in operation as well as relatively simpler configurations. Among the semi-active categories, the magnetorheological fluid (MRF) mounts have been proven to be a viable solution for modern vehicle vibration isolation. These mounts can change their stiffness and damping characteristic without involving moving parts, by controlling the yield stress of the MRF housed inside the mount by means of magnetic field. This study looked into several innovative designs for MRF mounts. The characteristics of the mount depend significantly on the compliances of the rubber, the number and arrangement of the fluid chambers and the number of flow passages connecting the chambers. These parameters provide the designers with various options to design the mounts to function in various conditions and over a wide range of frequencies. Different values of the aforementioned parameters were selected to form specific designs with certain characteristics. Mathematical models have been developed for each design and MATLAB/Simulink was used to simulate the response of each mount to certain excitations. As the hydraulic and magnetorheological (MR) effects are dominant in the mount, the elastomer behavior is considered linear. A discussion of the advantages and disadvantages of each design, based on the simulated response, is presented. The outcomes of this study can be a useful reference for MRF mount designers and leads to the development of a general MRF mount design methodology.

Nguyen, The; Ciocanel, Constantin; Elahinia, Mohammad

2010-03-01

125

78 FR 59954 - Notice of Inventory Completion: Michigan State Police, Mount Pleasant Post, Mount Pleasant, MI  

Federal Register 2010, 2011, 2012, 2013

...address in this notice by October 30, 2013. ADDRESSES: Detective Sergeant Gary Green; Michigan State Police, Mount Pleasant...written request with information in support of the request to Detective Sergeant Gary Green; Michigan State Police, Mount...

2013-09-30

126

Resilient shaft mounting for pump  

SciTech Connect

This patent describes a pump. It comprises: a tube having a centrifugal pump mounted on an upper end thereof, the centrifugal pump having an inlet coaxial with the tube, an outlet disposed radially and an impeller rotatable in a housing to pump a liquid; at least one propeller disposed in the tube below the centrifugal pump, the propeller being rotatable to draw fluid upwardly in the tube; a shaft connecting the impeller of the centrifugal with the propeller in the tube; at least one triangular support for the shaft, having three resilient planar plates dimensioned to be bowed inwardly in the tube and enclosing the shaft. The plates are discrete sections, each having ends disposed against an inner surface of the tube and against an adjoining one of the plates, an intermediate portion of each of the plates resiliently bearing inwardly toward the shaft; and, a resilient bushing disposed between the plates and the shaft, the resilient bushing being a round tube deformed into a triangular shape by pressure of the plates; whereby the shaft is supported coaxially in the tube.

Valentine, W.

1990-06-12

127

Panel Roster Circulatory System Devices Panel Meeting AED ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Panel Roster Circulatory System Devices Panel Meeting AED 515(i) Reclassification January 25, 2011 Name Affiliation Role ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

128

42. Interior detail, parlor, paneled chimney breast. This paneling likely ...  

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

42. Interior detail, parlor, paneled chimney breast. This paneling likely dates from the house's phase I construction spanning from 1728 into the 1730's. - John Bartram House & Garden, House, 54th Street & Lindbergh Boulevard, Philadelphia, Philadelphia County, PA

129

Natural Vibration and Panel Flutter of Cylindrically Curved Panels.  

National Technical Information Service (NTIS)

Influences of in-plane boundary conditions and panel geometry on natural vibration and flutter characteristics of cylindrically curved panels, exposed to a supersonic flow parallel to the generators, are analyzed with the aid of Galerkin's method within t...

Y. Matsuzaki

1973-01-01

130

Detail east panel of east truss showing rollling panels and ...  

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

Detail east panel of east truss showing rollling panels and counter weights. View south - New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Lift Bridge, Spanning Fort Point Channel, Boston, Suffolk County, MA

131

78. DETAIL OF COMMUNICATIONS PANEL ON LAUNCH ANALYST PANEL SHOWING ...  

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

78. DETAIL OF COMMUNICATIONS PANEL ON LAUNCH ANALYST PANEL SHOWING 20 CHANNEL-SELECTION SWITCHES, ROTARY DIAL, HEADSET, AND FOOT PEDAL - Vandenberg Air Force Base, Space Launch Complex 3, Launch Operations Building, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

132

Solar energy collector panel  

Microsoft Academic Search

A collector panel for thermal energy emanating from the sun comprises a coiled length of tubing arranged in a planar toroid and held in that position by a plurality of radial clamps. The tubing is continuous and carries the fluid to be heated, typically water from a swimming pool or similar container, in a spiral path in the plane of

1977-01-01

133

Stepped inlet optical panel  

DOEpatents

An optical panel includes stacked optical waveguides having stepped inlet facets collectively defining an inlet face for receiving image light, and having beveled outlet faces collectively defining a display screen for displaying the image light channeled through the waveguides by internal reflection.

Veligdan, James T. (6 Stephanie La., Manorville, NY 11949)

2001-01-01

134

Solar cogeneration panels  

Microsoft Academic Search

Photovoltaic panels generate heat as well as electricity and the amount of heat is significantly more than the electrical energy. A project, funded by New York State Research and Development Authority, Natural Resources Canada and Conserval Engineering investigated the method of combining photovoltaic cells with the transpired solar air heater, constructed prototypes, measured the combined electrical and thermal energies produced

J. C. Hollick

1998-01-01

135

Solar heating panel arrangement  

Microsoft Academic Search

A solar heating panel arrangement and method are disclosed wherein a plurality of spherical lenses transmit and focus solar radiation onto the upper surface of a fluid passage for various relative positions of the sun. The upper surface of the passage is in heat transfer proximity to the fluid therein, causing solar radiation focused thereon to be transferred to the

1983-01-01

136

Solar energy collector panel  

Microsoft Academic Search

A solar collector panel including a housing having a solar window therein and which contains a loop of tubing through which a fluid is pumped for heating of the fluid. A heat absorbing porous wicking membrane containing a vaporizable working liquid is positioned within the housing for collecting solar heat and transferring that heat to the fluid within the tubing.

Cutchaw

1975-01-01

137

Solar panel design considerations  

Microsoft Academic Search

The requirements and parameters of photovoltaic solar array design for space applications are presented. Orbit conditions of insolation, electrical power requirements and panel geometry are discussed. The relation of solar cell spectral response, surface spectral characteristics and temperature control is presented and the use of spectrally selective surfaces is examined. The effects of electrical circuit design and space environment on

W. H. Evans; A. E. Mann; I. Weiman; W. V. Wright

1961-01-01

138

Thermally insulated panel  

Microsoft Academic Search

A thermally insulated panel comprises a pair of spaced facing channels, preferably of metal, which are fixed together in a structurally secure manner by use of a serrated rigid plastic sheet disposed therebetween and by a closed-cell foamed polymeric material which fills the voids between the rigid sheet and the channels. The channels are bound together and the spacing between

W. B. Jr. Wyatt; B. D. Benefield

1977-01-01

139

Laminated reflective panels  

SciTech Connect

A laminated reflective panel comprises at least one mirror sheet which is less than 2.0 mm in thickness and which bears a reflective coating on its rear face. Each mirror sheet is laminated to a flat glass backing sheet which is thicker than the mirror sheet. The backing sheet is preferably of float glass.

Duchene, E.; Laroche, P.

1985-04-16

140

Panel Discussion III  

NASA Astrophysics Data System (ADS)

I. Hubeny Does anyone from the panel have a theme question to start with today? V. Trimble It's another one-liner: From an active galaxy meeting many years ago when people talked about spiral structure. I was reminded by Dr. Rucinski's talk of Lodewijk Woltjer's remark: ``The larger our ignorance, the stronger the magnetic field.''

Allard, F.; Batten, A.; Budding, E.; Devinney, E.; Eggleton, P.; Hatzes, A.; Hubeny, I.; Kley, W.; Lammer, H.; Linnell, A.; Trimble, V.; Wilson, R. E.

2012-04-01

141

Flat-Panel Displays  

Microsoft Academic Search

Our window into the Information Age is increasingly an interactive electronic display rather than the printed page. From computer terminals to television, that display is usually a CRT, but recent advances have raised flat panels into contention with the CRT for new applications. New plasma display structures and improvements in electroluminescence, paced by gains in high-voltage ICs, have led to

Allan R. Kmetz

1987-01-01

142

Flat-panel displays  

Microsoft Academic Search

Recent advances in microelectronics, liquid crystals, and the use of electronic displays for information delivery are presented. Three types of flat-panel displays are considered. The structure and design of plasma and electroluminescent displays are described and their advantages and disadvantages are discussed. The development of liquid crystal displays and the use of new technology for the development of an active-matrix

Steven W. Depp; Webster E. Howard

1993-01-01

143

Flat-panel displays  

Microsoft Academic Search

Our window into the Information Age is increasingly an interactive electronic display rather than the printed page From computer terminals to television, that display is usually a CRT, but recent advances have raised flat panels into contention with the CRT for new applications. New plasma display structures and improvements in electroluminescence paced by gains in high-voltage ICs, have led to

A. R. Kmetz

1986-01-01

144

Passive Vibration-Cancelling Isolation Mount.  

National Technical Information Service (NTIS)

An analysis of an idealized passive vibration-cancelling two-terminal mount with one degree of freedom at each mechanical terminal isolating a nonrigid machine from a nonrigid foundation is presented. To evaluate a vibration-cancelling (VC) mount, its eff...

A. O. Sykes

1987-01-01

145

Helmet Mounted Sight and Display Testing.  

National Technical Information Service (NTIS)

The results of conducted tests of Helmet Mounted Sights (HMS) and Helmet Mounted Displays (HMD) are presented. To compare the accuracy of the different HMS Systems (on magnetic, acoustic or optical basis) it is intended to find and unify a test procedure ...

H. Vonboehm H. Schreyer R. Schranner

1991-01-01

146

Inclined Chassis Mounting for Electronic Equipment.  

National Technical Information Service (NTIS)

Electronic equipment employing picture tubes or dials is mounted at an incline for ease of viewing. The chassis is mounted in a cabinet and includes an extensible arm with a slide-extension member telescoping within the length of a carriage-arm member. Th...

V. J. Galati E. L. Herd

1964-01-01

147

Mounting Block to Rotate Coal Cutter Bits.  

National Technical Information Service (NTIS)

The patent describes a rotatable mounting block with a coal cutter bit which reduces the amount of wear to the bit. The cutter bit is fixed within the bore of a bit holder and moves in unison therewith within the mounting block. Positive rotation of the h...

W. W. Roepke R. J. Wilson

1981-01-01

148

Mental Strategies of Elite Mount Everest Climbers  

Microsoft Academic Search

This study explored the mental strategies used by elite Mount Everest climbers to prepare for and overcome obstacles while climbing the mountain. Individual interviews were carried out with 10 elite climbers who successfully reached the summit of Mount Everest. High altitude climbing differs from many other pursuits because of the constant threat of danger and potential death. Common strategies of

Shaunna Burke; Terry Orlick

149

Compact attic mounted solar heating pack assembly  

Microsoft Academic Search

A compact attic solar heating pack assembly for mounting within a building attic having south and north facing roof sections overlying a horizontal building attic floor forming the ceiling and defining an enclosed attic space above the occupied room space below the ceiling is described. The pack assembly comprises: a closed sheet metal plenum, means for fixedly mounting the plenum

1988-01-01

150

Shock Absorbing Mount for Adjustable Barrel.  

National Technical Information Service (NTIS)

Disclosed is a mount releasably attached to a launcher/spotting rifle assembly. The mount, when released, allows for the barrel of the spotting rifle of the launcher/spotting rifle assembly to be adjusted in a spherical manner, and when tightened, rigidly...

V. J. Vendetti M. M. Canadav

1999-01-01

151

Panel Beat: Layout and Timing of Comic Panels  

Microsoft Academic Search

In comic book conventions, the size of a panel is generally proportional to the amount of narrative time that passes or the\\u000a amount of time a reader spends viewing the panel. This poster paper describes work in progress to develop an automated system\\u000a to assist in generating comic book panel layouts from a given sequence of panel artwork, the desired

William H. Bares

2008-01-01

152

EMI from solar panels and inverters  

NASA Astrophysics Data System (ADS)

Results are given of an exploratory investigation to ascertain the potential of electromagnetic interference (EMI) caused by radiation from photovoltaic (PV) systems. This includes a determination of the appropriate parameters to be measured and a review of present standards with emphasis on the FCC docket on incidental radiators. It also includes small residential installations having roof-mounted PV arrays. The results will be used to make recommendations as to what further work, if any, is needed to ensure that EMI from a PV system is negligible. Measured data so far show that the inverters in the solar-panel system tested caused severe EMI problems in the AM broadcast band (0.5 to 1.6 MH2), while FM and television reception was not significantly affected.

1983-01-01

153

Evaluation of Space Debris Impact on Spacecraft Structure Panels  

NASA Astrophysics Data System (ADS)

Mission-critical components of unmanned spacecraft, such as electronic equipment, are often mounted on the interior surfaces of structure panels. This study investigated debris impact damage to structure panels to assess the degree to which they can protect components. If debris perforates a structure panel but is stopped by the equipment chassis, the impact will not affect the probability of mission success. The ballistic limit of the chassis therefore equals to the damage limit of the structure panel. To estimate this damage limit, hypervelocity impact experiments were conducted on sets of a honeycomb sandwich panel, simulating a structure panel, fixed directly to an aluminum alloy plate, simulating an equipment chassis, with no gap between the two. Debris environment models show that alumina debris particles smaller than 1 mm in diameter are dominant in low earth orbit, and the average impact velocity is over 10 km/sec. However, advanced techniques are required to accelerate small solid projectiles to such speeds, so steel projectiles at 6 km/sec were used to simulate the impact pressure caused by alumina impacting at 9 km/sec. The depths of the resulting impact craters on the chassis plates were measured with an optical microscope, and the damage limit equation of the structure panels was derived from the crater depths. The calculated damage limit equation was compared with the SRL ballistic limit equations. As a result, it was found that the equation obtained in this study showed safety results but was too robust. The stand-off distance between honeycomb sandwich panel and aluminum alloy plate was effective to decrease depths of craters in the plate.

Higashide, Masumi; Onose, Naomi; Hasegawa, Sunao

154

Flank instability of Mount Etna  

NASA Astrophysics Data System (ADS)

Mount Etna geodetic and satellite monitoring systems have been recording surface deformation characterized by an instability of the E flank of the volcano for about 20 years. The seaward sliding of the E flank is observed either during summit and flank eruptions but also during quiescent recharging phases. Many investigations have not yet been able to give answers to the following questions: i) is the sliding affecting a thin or thick layer of the volcanic/sedimentary cover? ii) is this movement occurring along a sliding plane or is it accommodated by anelastic deformation? iii) if a sliding plane exists, where is it located? iv) if an anelastic material is responsible for the deformation, is it represented by pleistocenic clays or by the incoherent part of the flysh layers? v) which rheology best represents this behavior? vi) what is the role played by gravity? Unfortunately, indirect investigations such as tomographic, stratigraphic, geoelectric or seismic reflection studies have not been able to provide a unique interpretation of volcanic edifice structure. Our purpose here is to select the most reliable features evidenced by recent studies and build a finite element model able to reproduce the basic patterns of the observed surface deformation. The geometry of the model includes both topography and the top of the sedimentary basement, together with a synthetic reconstruction of the internal layering constrained by geology and seismic tomography. Rheological parameters of the Etnean lithotypes are constrained by laboratory experiments conducted in the framework of FLANK INGV-DPC project. First we study a series of 2D models trying to understand the role of gravity, internal layering, rheology and sliding plane. Then we move to a more realistic and more complex 3D model including also the tectonic structures that may play a relevant role accommodating the observed eastward movements of the E flank. We study the effects of magma accumulation in a isotropic spherical cavity (0.5 km radius) located at almost 5 km b.s.l. northwest of the summit craters, according to the results of numerous recently published papers. Among the results obtained, we want to remark that a significant contribution to increase the deformation in the E sector of Mount Etna may be due to the asymmetrical distribution of elastic parameters related to the presence of a high velocity body underneath summit craters imaged by seismic tomography. Moreover, when yield stress dependent rheologies are taken into account we observe that the initialization of stress in the model is very important. According to different assumptions about the initial stress distribution we predict different results characterized by a total or partial relaxation of the differential stress due to the gravity load. In the first case, only small effects on the computations are observed while in the latter case the flank collapse continuously overestimating the observed deformation. These preliminary results suggest that model assumptions severely influence the assessment of the physical mechanisms that may lead to flank instability.

Cianetti, Spina; Casarotti, Emanuele; Giunchi, Carlo

2010-05-01

155

LCD Panels: The Electronic Wonder.  

ERIC Educational Resources Information Center

|Describes Liquid Crystal Display (LCD) panels and their use in the classroom. Topics discussed include active versus passive matrix panels; the number of pixels; projectors, including transmissive or reflective overhead projectors; costs; and vendors that supply LCDs. (LRW)|

Anderson, Glenn

1994-01-01

156

LCD Panels: The Electronic Wonder.  

ERIC Educational Resources Information Center

Describes Liquid Crystal Display (LCD) panels and their use in the classroom. Topics discussed include active versus passive matrix panels; the number of pixels; projectors, including transmissive or reflective overhead projectors; costs; and vendors that supply LCDs. (LRW)

Anderson, Glenn

1994-01-01

157

Bannerclouds observed at Mount Zugspitze  

NASA Astrophysics Data System (ADS)

Systematic observations of banner clouds at Mount Zugspitze in the Bavarian Alps are presented and discussed. One set of observations draws on daily time lapse movies, which were taken over several years at this mountain. Identifying banner clouds with the help of these movies and using simultaneous observations of standard variables at the summit of the mountain provides climatological information regarding the banner clouds. In addition, a week-long measurement campaign with an entire suite of instruments was carried through yielding a comprehensive set of data for two specific banner cloud events. The duration of banner cloud events has a long-tailed distribution with a mean of about 40 min. The probability of occurrence has both a distinct diurnal and seasonal cycle, with a maximum in the afternoon and in the warm season, respectively. These cycles appear to correspond closely to analogous cycles of relative humidity, which maximizes in the late afternoon and during the warm season. In addition, the dependence of banner cloud occurrence on wind speed is weak. Both results suggest that moisture conditions are a key factor for banner cloud occurrence. The distribution of wind direction during banner cloud events slightly deviates from climatology, suggesting an influence from the specific Zugspitz orography. The two banner cloud events during the campaign have a number of common features: the windward and the leeward side are characterized by a different wind regime, however, with mean upward flow on both sides; the leeward air is both moister and warmer than the windward air; the background atmosphere has an inversion just above the summit of Mt. Zugspitze; the lifting condensation level is an increasing function with altitude. The results are discussed, and it is argued that they are consistent with previous Large Eddy Simulations using idealized orography.

Wirth, V.; Kristen, M.; Leschner, M.; Reuder, J.; Schween, J. H.

2011-10-01

158

Three-dimensional velocity measurement of a periodically ribbed aircraft panel surface by optical vibrometry  

Microsoft Academic Search

Experimental data were collected in this study and used to identify structural characteristics and features that ultimately effect sound radiation on an aircraft fuselage panel.A periodically reinforced flat plate was excited by an electromagnetic shaker and the 3D velocity vector response was measured at an array of points on the surface using a 3D laser vibrometer mounted on a scanning

Joseph Vignola; Brian H. Houston

1998-01-01

159

Solar panels for microsatellites: GaAs, GaAs\\/Ge and beyond  

Microsoft Academic Search

The need for microsatellites to generate the maximum power from small body mounted solar panels has led in many cases to the first demonstration of advanced technologies on these spacecraft. Because of the short schedules characteristic of microsatellite programmes there is the opportunity to obtain real flight data for new solar cells which can be valuable in designing solar arrays

T. A. Cross; R. Kimber; C. Goodbody

1994-01-01

160

Medical Physics Panel Discussion  

NASA Astrophysics Data System (ADS)

The panel discussion will explore opportunities and vistas in medical physics research and practice, medical imaging, teaching medical physics to undergraduates, and medical physics curricula as a recruiting tool for physics departments. Panel members consist of representatives from NSBP (Paul Guèye and Steven Avery), NIH/NIBIB (Richard Baird), NIST (Christopher Soares), AAPM (Howard Amols), ASTRO (Prabhakar Tripuraneni), and Jefferson Lab (Stan Majewski and Drew Weisenberger). Medical Physicists are part of Departments of Radiation Oncology at hospitals and medical centers. The field of medical physics includes radiation therapy physics, medical diagnostic and imaging physics, nuclear medicine physics, and medical radiation safety. It also ranges from basic researcher (at college institutions, industries, and laboratories) to applications in clinical environments.

Guèye, Paul; Avery, Steven; Baird, Richard; Soares, Christopher; Amols, Howard; Tripuraneni, Prabhakar; Majewski, Stan; Weisenberger, Drew

2006-03-01

161

Engineering of head-mounted projective displays.  

PubMed

Head-mounted projective displays (HMPD's) are a novel type of head-mounted display. A HMPD consists of a miniature projection lens mounted upon the user's head and retroreflective sheeting material placed strategically in the environment. First, the imaging concept of a HMPD is reviewed and its potential advantages and disadvantages are discussed. The design and a bench prototype implementation are then presented. Finally, the effects of retroreflective materials on the imaging properties and the optical properties of HMPD's are comprehensively investigated. PMID:18349957

Hua, H; Girardot, A; Gao, C; Rolland, J P

2000-08-01

162

A filter mount for the Euclid mission  

NASA Astrophysics Data System (ADS)

We present two designs of a filter mounting structure for the Near-Infrared Imaging Photometer (NIP) planned for the Euclid dark energy space mission. The three large near-infrared filters - with a 127 mm diameter, 12 mm thickness and a 330 g mass per element - are challenging to mount. We present the design considerations, finite element analysis and results from the first prototyping campaign of these structures. The rationale behind the down-selection between the two designs is detailed and we conclude with recommendations on future developments of mounts of this type. The results presented here are based on work performed during the Euclid Assessment Study.

Holmes, Rory; Grözinger, Ulrich; Bizenberger, Peter; Krause, Oliver

2011-09-01

163

Mining cutter bit holder and mounting assemblies  

SciTech Connect

A mining cutter bit holder and mounting assembly providing for positive engagement of the load bearing surfaces between the holder and mounting base. The bit holder and mounting base cooperate to support the bit against lateral forces and inhibit rotation of the holder within the socket in the base. Load support surfaces are arranged so that as the bit holder is clamped in the base and positive contact is made between surfaces. Bit support surfaces are provided at the front and rear of the bit holder.

Rollins, L. G.

1980-12-23

164

Mount Sinai CCOP - National Cancer Institute  

Cancer.gov

The Mount Sinai Community Clinical Oncology Program (MSCCOP) is a nonprofit community-based program committed to providing novel clinical research to cancer treatment patients and to healthy individuals who may be at risk for cancer.

165

Sweetness of Huckleberries Near Mount Adams, Washington.  

National Technical Information Service (NTIS)

Soluble solid contents of shaded and exposed huckleberry fruits were sampled throughout the 1974 berrypicking season near Mount Adams, Washington. No significant exposure differences were observed, but huckleberries were sweetest after beargrass (Xerophyl...

D. Minore A. W. Smart

1975-01-01

166

Performance with Helmet-Mounted Sights.  

National Technical Information Service (NTIS)

More than 30 experiments concerned with the effects of vibration, and other variables, on the use of helmet-mounted sights are presented. The other variables include target size, target position and target motion, reticle size, reticle position (elevation...

M. J. Wells M. J. Griffin

1987-01-01

167

Helmet-Mounted Display Design Guide.  

National Technical Information Service (NTIS)

Helmet mounted displays (HMDs) present flight, navigation, and weapon information in the pilot's line of sight. The HMD was developed to allow the pilot to retain aircraft and weapon information while looking off boresight. This document reviews current s...

K. W. Greeley R. L. Newman

1997-01-01

168

Next-generation head-mounted display  

Microsoft Academic Search

Head Mounted Displays (HMDs) have been utilized by the military for various applications since the 1980's. In the 1990's, this technology migrated to the consumer market. Most of these early systems suffered the major drawback that they were \\

James P. McGuire Jr.

2010-01-01

169

Mount Wilson Observatory 1932-1933  

Microsoft Academic Search

This paper is a summary of work conducted at Mount Wilson Observatory including Observing conditions, Solar Research, Investigations on Planets, Nebulae Research, Miscellaneous Stellar Investigations, Stellar Spectroscopy, and Laboratory Investigations.

George E. Hale; Walter S. Adams; Frederick H. Seahes

1933-01-01

170

Mount St. Helens: Before and After  

NSDL National Science Digital Library

This multimedia resource produced for Teachers' Domain chronicles the 1980 volcanic eruption of Mount St. Helens. Featured are still images of the devastation, video of the eruption plume, and before-and-after satellite images of the affected region.

Foundation, Wgbh E.

2005-12-17

171

Development of Isostatic Mounts and Associated Guidelines.  

National Technical Information Service (NTIS)

Isostatic interfaces to alleviate load transfer effects between supporting structures and spacecraft payloads were studied. The mounting system of an infrared telescope primary mirror was taken as an example to develop devices. A top-down analysis methodo...

1987-01-01

172

Reliability Analysis of Surface Mount Technology (SMT).  

National Technical Information Service (NTIS)

This report indoctrinates the reader with the understanding of what is involved and necessary in designing and assessing the reliability of surface mount products. Deterministic methods were used to identify the primary design and environmental drivers an...

C. A. Myers K. K. Chakrabarti D. H. Merlino E. G. Palmer E. F. Pello

1993-01-01

173

Mount Rainier - Living with Perilous Beauty  

USGS Publications Warehouse

Mount Rainier is an active volcano reaching more than 2.7 miles (14,410 feet) above sea level. Its majestic edifice looms over expanding suburbs in the valleys that lead to nearby Puget Sound. USGS research over the last several decades indicates that Mount Rainier has been the source of many volcanic mudflows (lahars) that buried areas now densely populated. Now the USGS is working cooperatively with local communities to help people live more safely with the volcano.

Scott, Kevin M.; Wolfe, Edward W.; Driedger, Carolyn L.

1998-01-01

174

Mounting thermo-elements in electric preheaters  

Microsoft Academic Search

The control of the preheater tube wall temperature is important and an explanation is given of the arrangement of the thermo-elements at the Boehlen works. This was an improved method of mounting the thermo-elements on the individual shanks of the preheater hairpin tubes. This method was shown on a sketch. The old method of mounting had problems such as thermo-elements

1943-01-01

175

Head-mounted workstation displays for airborne reconnaissance applications  

NASA Astrophysics Data System (ADS)

Aircraft reconnaissance operators need to access increasing amounts of information to perform their job effectively. Unfortunately, there is no excess weight, space or power capacity in most airborne platforms for the installation of additional display surfaces. Head mounted workstation displays solve these weight, space and power problems and mitigate information overload by providing a user-friendly interface to displayed information. Savings can be tremendous for large platforms. Over 18 kW of power and over 5,000 pounds could be saved on each Rivet Joint or AWACS platform. Even small platforms such as the E-2C or UAV ground control stations benefit from removal of large, heavy CRT or LCD displays. In addition, head mounted workstation displays provide an increased capability for collaborative mission planning and reduce motion-induced nausea. Kaiser Electronics has already designed and demonstrated a prototype system, VIEWTM, that addresses the needs of the airborne workstation operator. This system is easily reconfigured for multiple tasks and can be designed as a portable workstation for use anywhere within the aircraft (especially for maintenance or supervisory roles). We have validated the VIEWTM design with hundreds of user trials within the airborne reconnaissance community. Adopting such a display system in reconnaissance aircraft will gain significant benefits such as longer on-station time, increased operational altitude and improved operator performance.

Browne, Michael P.

1998-09-01

176

Design status of heavy ion injector program  

Microsoft Academic Search

Design and development of a sixteen beam, heavy ion injector is in progress at Los Alamos National Laboratory (LANL) to demonstrate the injector technology for the High Temperature Experiment (HTE) proposed by Lawrence Berkeley Laboratory. The injector design provides for individual ion sources mounted to a support plate defining the sixteen beam array. The beamlets are electrostatically accelerated through a

E. O. Ballard; E. A. Meyer; H. L. Rutkowski; F. W. Van Haaften

1985-01-01

177

Cell Dimensions of Ordinary and `Heavy' Ice  

Microsoft Academic Search

I HAVE recently made accurate determinations of the cell dimensions of crystals of ordinary and `heavy' ice (D2O). Single crystals were used. The apparatus consisted of a small Dewar flask mounted on the arcs of a Bernal photogoniometer, and filled with a mixture of acetone and solid carbon dioxide. A holder of copper wire attached to the bottom of the

H. D. Megaw

1934-01-01

178

Plate-fin panel heat exchanger and panel components thereof  

SciTech Connect

A plate-fin panel for a heat exchanger may be either formed as an aluminum extrusion or fabricated from a corrugated metal sheet sandwiched between two flat metal sheets. The extruded aluminum version may be clad with protective sheet metal jackets made of, or coated with, a corrosion resistant Cu-Ni alloy. Individual panel sections can be joined together by tongue and groove engagement to obtain a total desired panel width if available extrusion press or rolling mill capacity is insufficient. The plate-fin panels are assembled into slotted headering plates, and a layer of synthetic plastics potting compound seals dissimilar metal joints against electrolytic corrosion as well as leakage and provides sufficient adhesive strength to reduce or eliminate the need for welding the panels to the headers. Mechanical brush or hydraulic jet apparatus is capable of continuously or intermittently cleaning slime or encrustations from all panel surfaces exposed to seawater.

Heronemus, W.E.

1985-02-05

179

Measurement of charge of heavy ions in emulsion using a CCD camera  

Microsoft Academic Search

A system has been developed for semi-automated determination of the charges of heavy ions recorded in nuclear emulsions. The profiles of various heavy ion tracks in emulsion, both accelerator beam ions and fragments of heavy projectiles, were obtained with a CCD camera mounted on a microscope. The dependence of track profiles on illumination, emulsion grain size and density, background in

D. Kudzia; M. L. Cherry; P. Deines-Jones; R. Holynski; A. Olszewski; B. S. Nilsen; K. Sengupta; M. Szarska; A. Trzupek; C. J. Waddington; J. P. Wefel; B. Wilczynska; H. Wilczynski; W. Wolter; B. Wosiek; K. Wozniak

1999-01-01

180

A Wide Field-of-view Head Mounted Projective Display using Hyperbolic Half-silvered Mirrors  

Microsoft Academic Search

ABSTRACT The development ,of a ,wide ,field-of-view (FOV) head mounted display (HMD) has been a technological ,challenge for decades. Previous HMDs tackled this problem,using multiple display units (tiling) or multiple,curved mirrors. The former approach,tends to beexpensive and heavy, whereas the latter approach tends to suffer from image ,distortion and a small ,exit pupil. In order to provide a wide FOV

Kiyoshi Kiyokawa

2007-01-01

181

Microgap flat panel display  

DOEpatents

A microgap flat panel display which includes a thin gas-filled display tube that utilizes switched X-Y "pixel" strips to trigger electron avalanches and activate a phosphor at a given location on a display screen. The panel utilizes the principal of electron multiplication in a gas subjected to a high electric field to provide sufficient electron current to activate standard luminescent phosphors located on an anode. The X-Y conductive strips of a few micron widths may for example, be deposited on opposite sides of a thin insulating substrate, or on one side of the adjacent substrates and function as a cathode. The X-Y strips are separated from the anode by a gap filled with a suitable gas. Electrical bias is selectively switched onto X and Y strips to activate a "pixel" in the region where these strips overlap. A small amount of a long-lived radioisotope is used to initiate an electron avalanche in the overlap region when bias is applied. The avalanche travels through the gas filled gap and activates a luminescent phosphor of a selected color. The bias is adjusted to give a proportional electron multiplication to control brightness for given pixel.

Wuest, Craig R. (Danville, CA)

1998-01-01

182

LSST Telescope mount and pier design overview  

NASA Astrophysics Data System (ADS)

The Large Synoptic Survey Telescope (LSST) is a large (8.4 meter) wide-field (3.5 degree) survey telescope, which will be located on the summit of Cerro Pachón in Chile. The survey mission requires a short slew and settling time of 5 seconds for a 3.5 degree slew. This is significantly faster than similar aperture telescopes. Since the optical system does not include a fast steering mirror the telescope has stringent vibration limitations during observation. Meeting these requirements is facilitated by the compact mount riding on a robust pier which produces high natural frequencies, an advanced control system to minimize vibration excitation and reaction mass dampers. The telescope mount design is an altitude over azimuth welded and bolted assembly fabricated from mild steel. It supports the primary / tertiary mirror cell assembly, the secondary mirror cell assembly and the camera assembly. The mount design enables the removal of these optical assemblies for servicing and recoating. Retractable / deployable platforms have also been provided for accessing the camera on telescope. As a result of the wide field of view, the optical system is unusually susceptible to stray light consequently the mount must incorporate substantial light baffling. The dynamic characteristics of the steel reinforced concrete pier were enhanced by utilizing two different wall thicknesses, an unusually large diameter of 16 meter and anchoring the foundation in unweathered bedrock. The entire pier and mount assembly has been designed to be invariant with azimuth and elevation angle to enhance the effectiveness of the advanced control system.

Neill, Douglas R.; Krabbendam, Victor L.

2010-07-01

183

Advanced concentrator cell-mount analysis  

NASA Astrophysics Data System (ADS)

Eight advanced photovoltaic concentrator cell-mount configurations for use in the 50 to 200X concentration range have been designed, modeled and tested. Six of these mount types utilize a 1.75-cm-square cell and two use a 7.6-cm-diameter cell. An elastic-plastic computer stress model employing SAP6 was developed for seven of the designs. This stress analysis predicts maximum cell stress and provides information for predicting solder-joint fatigue life. Several empirical methods were attempted to provide support for the analysis. Present solder-joint evaluation techniques were investigated and ranked according to their effectiveness in engineering and production applications. Eighty-two functioning cell mounts of the various configurations were fabricated using both Sn62 and INnumber2 solder and exposed to 56 days of accelerated temperature and temperature/humidity cycling. Performance was tested at two-week intervals throughout the cycling. Initial mount performance and the degradation due to environmental cycling is described. Also presented are the design details and costs of the various mount configurations for production quantities of 50 kW and 1 MW per year.

Kingston, K.

1982-11-01

184

Response perseveration and adaptation in heavy marijuana-smoking adolescents  

Microsoft Academic Search

The present study examined two behavioral processes – response perseveration and response adaptation – in adolescents who were heavy marijuana smokers and control adolescents. Testing took place in a controlled laboratory setting, using customized software and either a computer keyboard or a custom built response panel for response input. Adolescents age 14–18 were recruited into a heavy smoking (near daily)

Don R. Cherek; Oleg V. Tcheremissine; Joel L. Steinberg; Jennifer L. Sharon

2007-01-01

185

Modelling the Output of a Flat-Roof Mounted Wind Turbine with an Edge Mounted Lip  

Microsoft Academic Search

This paper presents a computational fluid dynamic (CFD) simulation of the wind flow over a flat roof with and without an aerodynamically shaped lip on the leading edge of an isolated building. The intention is to show the advantage of mounting a relatively inexpensive aerodynamically shaped lip on the building to delay flow separation so that a roof mounted wind

S. J. Wylie; S. J. Watson

186

Ball mounting fixture for a roundness gage  

DOEpatents

A ball mounting fixture for a roundness gage is disclosed. The fixture includes a pair of chuck assemblies oriented substantially transversely with respect to one another and mounted on a common base. Each chuck assembly preferably includes a rotary stage and a wobble plate affixed thereto. A ball chuck affixed to each wobble plate is operable to selectively support a ball to be measured for roundness, with the wobble plate permitting the ball chuck to be tilted to center the ball on the axis of rotation of the rotary stage. In a preferred embodiment, each chuck assembly includes a vacuum chuck operable to selectively support the ball to be measured for roundness. The mounting fixture enables a series of roundness measurements to be taken with a conventional rotating gagehead roundness instrument, which measurements can be utilized to determine the sphericity of the ball. 6 figs.

Gauler, A.L.; Pasieka, D.F.

1983-11-15

187

ALDS 1980 panel review  

SciTech Connect

The overall goal of PNL (Pacific Northwest Laboratory) Applied Mathematical Sciences Research is development of a DOE (Department of Energy) capability for Analysis of Large Data Sets (ALDS) and transfer of this capability to other DOE laboratories and contractors. This capability is needed to satisfy DOE's increasing requirements for handling and analyzing large volumes of diverse energy and environmental data. The integrated statistics and computer science research includes the development of improved methodologies in data definition, data management, data analysis, and visual display. The purpose of this document is three-fold. First, the document is the permanent record of the ALDS 1979 panel review. Second, the document provides the PNL staff with a benchmark of where we were at the end of the second year of ALDS. Third, the document is available to laboratories, universities, and DOE headquarters as detailed description of the ALDS project, as well as an example of the new direction of AMS-funded research.

Hall, D. L. [ed.] [ed.

1981-11-01

188

Panel Discussion IV  

NASA Astrophysics Data System (ADS)

I. Hubeny Welcome to the last panel meeting. We invite general comments either from the audience or from the panelists. V. Trimble Well, Mercedes started us with a vocabulary item and I think I would like to end with a vocabulary item. When they were first discovered, we called them `extra solar system planets' which was descriptive and fine, but it's just rather cumbersome. At some point they became `extra solar planets.' Now I have never seen a planet inside the Sun. And therefore `extrasolar' is not a good descriptor. `Exoplanets' is OK, but now that there are so many of them that perhaps they are simply `the planets.' When you want to specialize to ours, you could say `solar system planets.' Think how much ink it would save.

Allard, F.; Batten, A.; Budding, E.; Devinney, E.; Eggleton, P.; Hatzes, A.; Hubeny, I.; Kley, W.; Lammer, H.; Linnell, A.; Trimble, V.; Wilson, R. E.

2012-04-01

189

Heavy flavors  

SciTech Connect

A range of issues pertaining to heavy flavors at the SSC is examined including heavy flavor production by gluon-gluon fusion and by shower evolution of gluon jets, flavor tagging, reconstruction of Higgs and W bosons, and the study of rare decays and CP violation in the B meson system. A specific detector for doing heavy flavor physics and tuned to this latter study at the SSC, the TASTER, is described. 36 refs., 10 figs.

Cox, B.; Gilman, F.J.; Gottschalk, T.D.

1986-11-01

190

Piezoelectric vibrator mounting system for a nebulizer  

US Patent & Trademark Office Database

System for mounting a piezoelectric vibrator comprises an annular projected vibrator support (27) integrally formed with an insulating support (21), a piezoelectric vibrator (1) located on the annular vibrator support (27) and an elastic annular holder (22) having an essentially L-shaped section for holding down the periphery of the piezoelectric vibrator (1) fitted to the insulating support (21), a plurality of connecting electrode members (23,24) being mounted on the vibrator support (27) and each of the connecting electrode members (23,24) being pressed against the corresponding electrodes (2B,2A') of the piezoelectric vibrator (1).

Takahashi; Minoru (Chiba, JP); Kotani; Tsutomu (Chiba, JP); Endo; Shinichi (Chiba, JP)

1991-06-04

191

Built-in solar panel  

Microsoft Academic Search

Disclosed herein is a solar panel assembly and method for fabrication of same including cutting away a portion of the rafters and roof sheeting to provide an orifice of suitable dimension within which a solar panel frame is to be disposed, providing a step portion on an upper inner periphery thereof, disposing a frame lower portion upon the step, installing

M. J. Aloi; K. J. II Hancock

1983-01-01

192

Isothermal process solar collector panel  

Microsoft Academic Search

An isothermal process solar collector panel is disclosed. The panel includes a collector plate for absorbing radiant heat; and a plurality of isothermal process heat pipes in an array over a surface of the collector plate. Each heat pipe is closed at both ends and contains thermodynamic working fluid for transferring heat energy from the collector plate to a second

Watt

1978-01-01

193

Wood Brick Tile for Paneling.  

National Technical Information Service (NTIS)

Wood-brick tile is a new decorative paneling for homes, offices, and public buildings. The tiles are thin rectangular pieces of wood with chamfered edges and are applied with an adhesive to produce a brick and mortar pattern. Wood tile panels are especial...

G. A. Cooper E. G. Champagne

1967-01-01

194

Mounted on a pedestal: Bertha Honoré Palmer  

Microsoft Academic Search

The thesis Mounted on a Pedestal, chronicles the life of Bertha Honoré Palmer. The focus of her story are the years after 1910, when she traveled to Sarasota, Florida and heralded the flight to the southernmost state, leading the pack in the purchase and development of land in the Sarasota\\/ Tampa Bay area. The totality of her years prior to

Hope L Black

2007-01-01

195

Dynamic light amplification for head mounted displays  

Microsoft Academic Search

Two common limitations of modern Head Mounted Displays (HMD): the narrow field of view and limited dynamic range, call for rendering techniques that can circumvent or even take advantage of these factors. We describe a simple practical method of enhancing visual response from HMDs by using view-dependent control over lighting. One example is provided for simulating blinding lights in dark

Andrei Sherstyuk; Anton Treskunov

2009-01-01

196

Head-mounted displays for virtual reality  

Microsoft Academic Search

Head mounted displays (HMD) provide one means of displaying virtual environments. This paper assesses the state of HMD technology, with respect to the Virtual Reality (VR) goal of creating an environment which matches user's experience with the real world. We find that current HMDs fall short in important characteristics, such as resolution, field of view, and physical attributes. A system

Harry Veron; P. J. Hezel; David A. Southard

1994-01-01

197

Curiosity Heading for Mount Sharp, Sol 329  

NASA Website

Mount Sharp appear at the top of this image taken by the right Navigation Camera (Navcam) of NASA's Mars rover Curiosity at the end of a drive of about 135 feet (41 meters) during the 329th Martian day, or sol, of the rover's work on ...

198

Atmospheric Turbulence Measurements at Mount Wilson Observatory  

Microsoft Academic Search

Simultaneous measurements of atmospheric temperature fluctuations at various altitudes and locations at Mount Wilson Observatory provide a quantitative description of local turbulence characteristics. The average rms value of the temperature fluctuations at an altitude of 150 feet is found to be 26% of the rms value at 9 feet, showing a substantial decrease with altitude for temperature fluctuations close to

Nicholas Short; Walt Fitelson; Charles H. Townes

2003-01-01

199

Helmet Mounted Display/Sight System Study.  

National Technical Information Service (NTIS)

The report describes a study effort to determine the applicability of a helmet mounted sight/display system with emphasis on applications to the high performance F-15 aircraft. The missions of that aircraft were analyzed to determine pilot functions where...

J. W. Aldrich R. S. Jacobs T. J. Triggs

1971-01-01

200

A personality profile of Mount Everest climbers  

Microsoft Academic Search

The Eysenck Personality Questionnaire-Revised was administered to a group of climbers (N=39) who were attempting to summit Mount Everest. The personality profiles for these climbers were characterized by higher scores on the Extraversion (sociability) and Psychoticism (toughmindedness) scales and lower scores on the Neuroticism (anxiety) scales than for the normative sample. This profile is consistent with the pattern typically observed

Sean Egan; Robert M Stelmack

2003-01-01

201

Eurofighter helmet-mounted display: status update  

NASA Astrophysics Data System (ADS)

BAE SYSTEMS are developing a high performance Helmet Mounted Display system for the Eurofighter/Typhoon combat aircraft. This paper presents an overview of the design solutions, as well as details of the development program status. Finally, it gives some indicators as to future growth applications.

Carter, Stephen J.; Cameron, Alexander A.

2000-06-01

202

DC Zoom down to Mount Airy, MD  

NSDL National Science Digital Library

Starting with a view of the Washington, D.C., metropolitan area, the D.C. border and the Beltway fade in. The view then shifts to Mount Airy, Maryland, indicating urban growth with red dots. Data sets for 1973, 1980, 1985, 1990, and 1996 are presented chronologically.

Snodgrass, Stuart; Masek, Jeffrey

2000-02-21

203

Geometric Effects on Fuselage Mounted Store Drag.  

National Technical Information Service (NTIS)

The second in a series of scale-model wind tunnel tests to determine the effect of fuselage mounted stores on the drag of an attack aircraft is reported. Variations of wing position, wing sweep, and store loadings were investigated over an angle of attack...

J. F. Talbot J. Ottensoser

1967-01-01

204

Anti-vibration mounting for clip-fit connection means and vehicle fitted with this mounting  

US Patent & Trademark Office Database

An anti-vibration mounting comprises first and second rigid frames, which can be joined respectively to two rigid elements to be connected, an elastomer body connecting the two frames to one another and being designed to support a permanent axial load along a first axis, the elastomer body being joined to a sleeve fitted onto a mounting bar belonging to the first frame and extending along a second axis substantially perpendicular to the first axis. The sleeve is retained on the mounting bar by a clip-fit connection.

Mellon; Paul (Grand Rapids, MI); Dehestani; Hamid (Grand Rapids, MI); Alferink; Matt (Midleville, MI); Hamilton; Larmie (Byron Center, MI)

2002-10-15

205

Aerospace Safety Advisory Panel  

NASA Astrophysics Data System (ADS)

This report provides findings, conclusions and recommendations regarding the National Space Transportation System (NSTS), the Space Station Freedom Program (SSFP), aeronautical projects and other areas of NASA activities. The main focus of the Aerospace Safety Advisory Panel (ASAP) during 1988 has been monitoring and advising NASA and its contractors on the Space Transportation System (STS) recovery program. NASA efforts have restored the flight program with a much better management organization, safety and quality assurance organizations, and management communication system. The NASA National Space Transportation System (NSTS) organization in conjunction with its prime contractors should be encouraged to continue development and incorporation of appropriate design and operational improvements which will further reduce risk. The data from each Shuttle flight should be used to determine if affordable design and/or operational improvements could further increase safety. The review of Critical Items (CILs), Failure Mode Effects and Analyses (FMEAs) and Hazard Analyses (HAs) after the Challenger accident has given the program a massive data base with which to establish a formal program with prioritized changes.

1989-03-01

206

1994 Panel 1 Utilization Plan  

SciTech Connect

The Waste Isolation Pilot Plant (WIPP) is intended to receive, handle, and permanently dispose of transuranic (TRU) waste. To fulfill this mission, the U.S. Department of Energy (DOE) constructed a full-scale facility to demonstrate both technical and operational principles of the permanent isolation of TRU waste. The WIPP consists of surface and underground facilities. Panel 1 is situated in the underground facility horizon which is located approximately 2,150 feet below the surface in the predominantly halite Salado Formation. The Panel 1 Utilization Plan provides a strategy for the optimum use of Panel 1 which is consistent with the priorities established by the DOE to accomplish the WIPP mission. These priorities, which include maintaining personnel safety, conducting performance assessment, and continued operational enhancements, are the guiding premise for the decisions on the planned usage of the WIPP underground facility. The continuation of ongoing investigations along with the planned testing and training to be carried out in Panel 1 will enhance the current knowledge and understanding of the operational and geotechnical aspects of the panel configuration. This enhancement will ultimately lead to safer, more efficient, and more cost-effective methods of operation. Excavation of the waste storage area began in May 1986 with the mining of entries to Panel 1. The original design for the waste storage rooms at the WIPP provided a limited period of time during which to mine the openings and to emplace waste. Each panel, consisting of seven storage rooms, was scheduled to be mined and filled in less than 5 years. Panel 1 was developed to receive waste for a demonstration phase that was scheduled to start in October 1988. The demonstration phase was deferred, and the experimental test program was modified to use contact-handled (CH) transuranic waste in bin-scale tests, planned for Room 1, Panel 1.

Not Available

1994-11-01

207

Aircraft interior ANC with flat panel speakers  

NASA Astrophysics Data System (ADS)

In propeller driven aircraft the main source for internal noise are tonal disturbances caused by the propeller blades that are passing the fuselage. In a certain four propeller military transport aircraft the maximum sound level in the cabin can reach up to 110 dB(A), not taking into account any noise control treatments. Inside the semi closed loadmaster working station (LMWS) the sound level must be reduced down to 86 dB(A). It is proposed to reach this goal with an active noise control system, because passive solutions are to heavy at low frequencies. Optimal positions of the loudspeakers are found by finite element calculations. These positions have been realized in a full-scale test bed. A reduction of the sound pressure level of more than 30dB within a specified volume was achieved at a frequency of 100 Hz. HiFi speakers are used as secondary actuators in this test bed. These speakers are heavy and have unsuitable geometric dimensions for an aircraft. Therefore, other actuators, e.g. flat panel speakers, will be investigated with respect to the application in a mock-up of the LMWS.

Gerner, Christian; Sachau, Delf; Breitbach, Harald

2004-07-01

208

AGU Sonar Data Restriction Panel  

NASA Astrophysics Data System (ADS)

The AGU Council accepted the report of the panel set up in February to study the issue of restriction by the U.S. Navy of access to high-resolution sonar data for the U.S. Exclusive Economic Zone. Panel chairman John Bossier announced that “the Navy has acted in the best interests of the nation” in lifting the restriction order. Only two areas, egress routes to two submarine bases (see “Navy Defines Areas Under Sonar Ban,” in News, this issue), remain restricted.Panel members were Bruce Douglas, Alexander Malahoff, Donald Piepgras, Paul Richards, David Smith and Manik Talwani.

209

General and Plastic Surgery Devices Panel  

Center for Biologics Evaluation and Research (CBER)

... Medical Devices. Medical Devices Advisory Committee. General and Plastic Surgery Devices Panel. ... General and Plastic Surgery Devices Panel. ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

210

Heavy periodane.  

PubMed

The potential energy surface of the hypothetical NaMgAlSiPSCl system (heavy periodane) is exhaustively analyzed via the gradient embedded genetic algorithm (GEGA) in combination with density functional theory (DFT) computations. The electronegativity differences among the elements in both the second and third rows of the periodic table indicate that low-energy heavy periodane structures are obtained when highly electronegative and electropositive elements are bound together, but the global minimum of the heavy periodane system is completely different to its second-row analog (LiBeBCNOF). PMID:22903586

Azpiroz, Jon M; Moreno, Diego; Ramirez-Manzanares, Alonso; Ugalde, Jesus M; Mendez-Rojas, Miguel Angel; Merino, Gabriel

2012-08-19

211

Experimental Study of Smart Segmented Trim Panels for Aircraft Interior Noise Control  

NASA Astrophysics Data System (ADS)

A smart trim panel used as a secondary source for active noise control in aircraft is developed and tested. The smart trim panel is a rectangular segment of aircraft trim panel which is suspended by a flexible support. This support converts the stiff trim panel into flexibly mounted pistons which can be driven by light-weight and low-profile force actuators. The smart trim panel has many advantages as an acoustic source over traditional loudspeakers: it is of lower profile, lower mass, and requires only a simple modification of materials already installed on aircraft. The static and dynamic properties of a smart trim panel are studied, verifying that when subjected to low-frequency (<500 Hz) excitation, it vibrates in the efficiently radiating piston mode. Real-time active noise control experiments are conducted in a laboratory-scale fuselage model using the smart trim panels as secondary sources. Global attenuation of sound pressure levels of up to 15 dB is realized.

Hirsch, S. M.; Meyer, N. E.; Westervelt, M. A.; King, P.; Li, F. J.; Petrova, M. V.; Sun, J. Q.

2000-04-01

212

Access systems of heavy construction vehicles: Parameters, problems and pointers.  

PubMed

As part of an investigation of accidents occuring during mounting on and dismounting from heavy construction equipment a study was conducted of operator behaviour during mounting and dismounting. Measurements of access systems of representative vehicles were compared with those from various Standards. In most instances the vehicles did not conform. Recommendations are made for improvements in the safety characteristics of the access. These recommendations are in three classes, namely; changes and developments in procedures and practices, retrofit of existing equipment, and changes in design philosophy. The need for maintaining three point contact at all times during mounting and dismounting is emphasised. PMID:15676403

Couch, D B; Fraser, T M

1981-06-01

213

Medical Devices Dispute Resolution Panel  

Center for Biologics Evaluation and Research (CBER)

... The Medical Devices Dispute Resolution Panel provides advice to the Center Director on complex or contested scientific issues between the FDA ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

214

Automated Solar Panel Assembly Line.  

National Technical Information Service (NTIS)

The initial stage of the automated solar panel assembly line program was devoted to concept development and proof of approach through simple experimental verification. In this phase, laboratory bench models were built to demonstrate and verify concepts. F...

H. Somberg

1981-01-01

215

High Temperature Be Panel Development.  

National Technical Information Service (NTIS)

Beryllium materials have been used for many aerospace applications over the years. Most of these applications have been fairly ambient environments. The possibility of fabricating beryllium panels for high temperature applications up to 1200 F is investig...

L. Grant M. Jensen R. Hardesty

1989-01-01

216

Panel Discussion on Scalar Mesons  

SciTech Connect

A panel discussion on scalar mesons was held with the participation of David Bugg, Yulia Kalashnikova, Keh-Fei Liu, Michael Scadron, the author, and members of the audience. Some introductory remarks are noted here.

Rosner, Jonathan L. [Enrico Fermi Institute, University of Chicago, Chicago, IL 60637 (United States)

2008-08-31

217

NCI DEA - President's Cancer Panel  

Cancer.gov

National Institutes of Health, National Cancer Institute, Division of Extramural Activities - Home Page Skip to Main Content Home Funding Advisory Consumer Guides FAQs & Glossary Awarded Research Division of Extramural Activities President's Cancer Panel Site

218

Solar Cells and Solar Panels.  

National Technical Information Service (NTIS)

The bibliography is a selection of unclassified and unlimited distribution references on Solar Cells and Solar Panels. These citations of reports present information on performance characteristics, fabrication, development of power levels, degradation stu...

1973-01-01

219

Panel Report on New Materials.  

National Technical Information Service (NTIS)

The panel was organized to generate a report on needs and opportunities in basic research on new materials, having a link with energy-related problems facing technology. Covered are: inorganic synthesis, new polymers, intermetallics, amorphous solids, thi...

1979-01-01

220

MEDICAL EXPENDITURE PANEL SURVEY (MEPS)  

EPA Science Inventory

The Medical Expenditure Panel Survey, or MEPS as it is commonly called, is the third (and most recent) in a series of national probability surveys conducted by AHRQ on the financing and utilization of medical care in the United States....

221

Digital Encyclopedia: George Washington's Mount Vernon  

NSDL National Science Digital Library

What was George Washington's life like at Mount Vernon? This frequent question is answered in fine form by this Digital Encyclopedia, compiled by a variety of scholars in collaboration with the Mount Vernon Estate. It is particularly appropriate that there is such a copious compendium of facts on the goings-on at Mt. Vernon, as Washington was enamored of encyclopedias during his life. Drawing on a range of primary sources, this project brings together hundreds of entries divided into over a dozen topics, including Military, Slavery, Food and Drink, and Animals. The Personal area is quite compelling, as it includes entries on Barbados, smallpox and, of course, the celebrated myths surrounding Washington's false teeth.

222

Shaft mount for data coupler system  

NASA Astrophysics Data System (ADS)

A device for mounting a data transmission apparatus to a rotating, tapered, and instrumented shaft is provided. This device permits attachment without interfering with shaft rotation or the accuracy of data output, and prevents both radial and axial slippage of the data transmission apparatus. The mounting device consists of a sleeve assembly which is attached to the shaft by means of clamps that are situated at some distance removed from the instrumented area of the shaft. The data transmission device is secured to the sleeve such that the entire assembly rotates with the shaft. Shim adjustments between sleeve sections assure that a minimum compressive load is transferred to the instrumented area of the shaft and a rubber lining is affixed to a large portion of the interior surface of the sleeve to absorb vibration.

Elliott, James R., Jr.; Lord, Mark T.

1993-11-01

223

Shaft mount for data coupler system  

NASA Astrophysics Data System (ADS)

A device for mounting a data transmission apparatus to a rotating, tapered, and instrumented shaft is provided. This device permits attachment without interfering with shaft rotation or the accuracy of data output, and prevents both radial and axial slippage of the data transmission apparatus. The mounting device consists of a sleeve assembly which is attached to the shaft by means of clamps that are situated at some distance removed from the instrumented area of the shaft. The data transmission device is secured to the sleeve such that the entire assembly rotates with the shaft. Shim adjustments between sleeve sections assure that a minimum compressive load is transferred to the instrumented area of the shaft and a rubber lining is affixed to a large portion of the interior surface of the sleeve to absorb vibration.

Elliott, James R., Jr.; Lord, Mark T.

1991-10-01

224

Cryogenic mounts for large fused silica lenses  

NASA Astrophysics Data System (ADS)

This paper describes the design and development of an accurate temperature compliant lens mounting technique being used on the camera of the UK-FMOS near infrared spectrograph for operation at the Subaru Telescope in Hawaii. A series of fused silica lenses of up to 4.4kg, 255mm in diameter and operating at temperatures as low as 70K are supported within flexures cut away from stainless steel outer rings. Intermediate low thermal expansion pads are attached to these flexures and in turn bonded to the glass during the alignment process. This mounting method lends itself to the domino chips type of assembly process which can be carried out on a rotary table to maintain accurate axial alignment. A detailed description of the overall design progression including the methods of manufacture, alignment process, adhesive selection, assembly methods and testing is included.

Froud, T. R.; Tosh, I. A. J.; Edeson, R. L.; Dalton, G. B.

2006-07-01

225

Adjustable link for kinematic mounting systems  

DOEpatents

An adjustable link for kinematic mounting systems. The adjustable link is a low-cost, passive device that provides backlash-free adjustment along its single constraint direction and flexural freedom in all other directions. The adjustable link comprises two spheres, two sockets in which the spheres are adjustable retain, and a connection link threadly connected at each end to the spheres, to provide a single direction of restraint and to adjust the length or distance between the sockets. Six such adjustable links provide for six degrees of freedom for mounting an instrument on a support. The adjustable link has applications in any machine or instrument requiring precision adjustment in six degrees of freedom, isolation from deformations of the supporting platform, and/or additional structural damping. The damping is accomplished by using a hollow connection link that contains an inner rod and a viscoelastic separation layer between the two.

Hale, Layton C. (Livermore, CA)

1997-01-01

226

The AMiBA Hexapod Telescope Mount  

NASA Astrophysics Data System (ADS)

The Array for Microwave Background Anisotropy (AMiBA) is the largest hexapod astronomical telescope in current operation. We present a description of this novel hexapod mount with its main mechanical components—the support cone, universal joints, jack screws, and platform—and outline the control system with the pointing model and the operating modes that are supported. The AMiBA hexapod mount performance is verified based on optical pointing tests and platform photogrammetry measurements. The photogrammetry results show that the deformations in the inner part of the platform are less than 120 ?m rms. This is negligible for optical pointing corrections, radio alignment, and radio phase errors for the currently operational seven-element compact configuration. The optical pointing error in azimuth and elevation is successively reduced by a series of corrections to about 0farcm 4 rms which meets our goal for the seven-element target specifications.

Koch, Patrick M.; Kesteven, Michael; Nishioka, Hiroaki; Jiang, Homin; Lin, Kai-Yang; Umetsu, Keiichi; Huang, Yau-De; Raffin, Philippe; Chen, Ke-Jung; Ibañez-Romano, Fabiola; Chereau, Guillaume; Huang, Chih-Wei Locutus; Chen, Ming-Tang; Ho, Paul T. P.; Pausch, Konrad; Willmeroth, Klaus; Altamirano, Pablo; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Han, Chih-Chiang; Kubo, Derek; Li, Chao-Te; Liao, Yu-Wei; Liu, Guo-Chin; Martin-Cocher, Pierre; Oshiro, Peter; Wang, Fu-Cheng; Wei, Ta-Shun; Wu, Jiun-Huei Proty; Birkinshaw, Mark; Chiueh, Tzihong; Lancaster, Katy; Lo, Kwok Yung; Martin, Robert N.; Molnar, Sandor M.; Patt, Ferdinand; Romeo, Bob

2009-04-01

227

NASA Aerospace Safety Advisory Panel  

NSDL National Science Digital Library

Established by Congress after the Apollo spacecraft fire in January 1967, the Aerospace Safety Advisory Panel (ASAP) is an independent group of experts tasked with advising "the NASA Administrator and Congress on all safety-related issues -- design, development, manufacturing, flight preparation, and missions operations -- concerning NASA's human space flight programs." The ASAP homepage features the text of previous annual reports and general information about the Panel and its activities.

228

Head-Mounted Display System for Microneurosurgery  

Microsoft Academic Search

Advances in video technology have enabled the incorporation of high-resolution electronic imaging of an operative field during microneurosurgical and endoscopic procedures. While current video-based monoscopic camera and monitor systems produce an excellent image, the third dimension is lacking and the operative field and image are at different locations. We describe a head-mounted display (HMD) that allows the surgical team to

Joseph C. T. Chen; Kirk Moffitt; Michael L. Levy

1997-01-01

229

Conceptual design for PSP mounting bracket  

SciTech Connect

Protective structural packages (PSP's or overpacks) used to ship 2{1/2}-ton UF product cylinders are bolted to truck trailers. All bolts penetrate two longitudinal rows of wooden planks. Removal and replacement is required at various intervals for maintenance and routine testing. A conceptual design is presented for mounting brackets which would securely attach PSP's to trailer frames, reduce removal and replacement time, and minimize risk of personnel injury. 1 ref., 2 figs.

Ransom, G.; Stein, R.

1991-08-16

230

Fixture for mounting small parts for processing  

DOEpatents

A fixture for mounting small parts, such as fusion target spheres or microelectronic components is disclosed. A glass stalk is drawn and truncated near its tip. The truncated end of the glass stalk is dipped into silicone rubber forming an extending streamer. After the rubber cures for approximately 24 hours, a small part is touched to the streamer, and will be held securely throughout processing. 5 figs.

Foreman, L.R.; Gomez, V.M.; Thomas, M.H.

1990-05-29

231

VISUALIZATION AND ANIMATION OF MOUNT EVEREST  

Microsoft Academic Search

In the year 1988 a new topographical map 1:50'000 of the Mount Everest region was published by the National Geographical Society. The full map content was derived from aerial images of scale 1:35'000, acquired in a 1984 photogrammetric flight. This highly acclaimed topographical map, produced with Swiss photogrammetric and cartographic know-how, serves until nowadays as an important work of reference.

Armin Gruen; Andreas Roditakis

232

Mounting assembly for heater thermostat control  

SciTech Connect

This patent describes an assembly for mounting a thermostat control on the outer wall of a heater tank including an external spud in which a heating element is mounted. The mounting assembly comprises: a first bracket made from a spring material and including a body having an opening adapted to lockingly fit over the tank spud. The first bracket further includes a pair of laterally-spaced legs extending from the body and having a bent upper end portion adapted to apply spring pressure toward the tank outer wall when the first bracket is locked on the tank spud. Each of the legs includes in the upper end portion an elongated slot having an upper end; a second bracket carrying the thermostat control and having a pair of laterally -spaced, upstanding ears adapted to fit beneath the upper end portions of the legs. Each of the ears includes a nib received in a slot for interlocking the first and the second brackets and having an upper edge adapted to engage the upper end of the slot and cooperate therewith to urge the thermostat control into firmer contact with the tank outer wall in response to upward vertical movement of the second bracket relative to the first bracket; and the assembly further characterized by a retaining lip on the first bracket, the lip located between the legs and positioned to bear against the end wall of the thermostat control when the parts are in assembled position and an outward horizontal load is applied.

Murphy, M.A.

1987-04-14

233

1. View looking northwest, from Middle Mount Vernon Road, showing ...  

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

1. View looking northwest, from Middle Mount Vernon Road, showing the slight rise upon which the building was constructed. - Perry Township School No. 3, Middle Mount Vernon & Eickhoff Roads, Evansville, Vanderburgh County, IN

234

Neck Muscle Fatigue with Helmet-Mounted Systems.  

National Technical Information Service (NTIS)

Helmet-mounted systems (HMS) allow aircrew to perform more efficiently in poor conditions. Optics allow improved visibility, night vision, helmet-mounted displays, and targeting capability. The cost to use them in high performance aircraft is unknown. Tes...

E. S. Eveland J. A. Pellettiere

2006-01-01

235

Determining the Acceptable Limits of Head Mounted Loads.  

National Technical Information Service (NTIS)

This report reviews ergonomic and biodynamic factors related to the introduction of head mounted loads for military land environments. It presents an overview of current knowledge pertaining to the assessment of head mounted load limits. Limitations in th...

V. Ivancevic N. Beagley

2004-01-01

236

7. Alternate view of collapsed Panama Mount on beach. Note ...  

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

7. Alternate view of collapsed Panama Mount on beach. Note concrete ring, metal rail and exposed rebar. Looking 320° NW. - Fort Funston, Panama Mounts for 155mm Guns, Skyline Boulevard & Great Highway, San Francisco, San Francisco County, CA

237

Mounting apparatus for a nozzle guide vane assembly  

DOEpatents

The present invention provides a ceramic nozzle guide assembly with an apparatus for mounting it to a metal nozzle case that includes an intermediate ceramic mounting ring. The mounting ring includes a plurality of projections that are received within a plurality of receptacles formed in the nozzle case. The projections of the mounting ring are secured within the receptacles by a ceramic retainer that allows contact between the two components only along arcuate surfaces thus eliminating sliding contact between the components. 8 figs.

Boyd, G.L.; Shaffer, J.E.

1995-09-12

238

Mounting apparatus for a nozzle guide vane assembly  

DOEpatents

The present invention provides a ceramic nozzle guide assembly with an apparatus for mounting it to a metal nozzle case that includes an intermediate ceramic mounting ring. The mounting ring includes a plurality of projections that are received within a plurality of receptacles formed in the nozzle case. The projections of the mounting ring are secured within the receptacles by a ceramic retainer that allows contact between the two components only along arcuate surfaces thus eliminating sliding contact between the components.

Boyd, Gary L. (Alpine, CA); Shaffer, James E. (Maitland, FL)

1995-01-01

239

Analysis of 3-panel and 4-panel microscale ionization sources  

SciTech Connect

Two designs of a microscale electron ionization (EI) source are analyzed herein: a 3-panel design and a 4-panel design. Devices were fabricated using microelectromechanical systems technology. Field emission from carbon nanotube provided the electrons for the EI source. Ion currents were measured for helium, nitrogen, and xenon at pressures ranging from 10{sup -4} to 0.1 Torr. A comparison of the performance of both designs is presented. The 4-panel microion source showed a 10x improvement in performance compared to the 3-panel device. An analysis of the various factors affecting the performance of the microion sources is also presented. SIMION, an electron and ion optics software, was coupled with experimental measurements to analyze the ion current results. The electron current contributing to ionization and the ion collection efficiency are believed to be the primary factors responsible for the higher efficiency of the 4-panel microion source. Other improvements in device design that could lead to higher ion source efficiency in the future are also discussed. These microscale ion sources are expected to find application as stand alone ion sources as well as in miniature mass spectrometers.

Natarajan, Srividya; Parker, Charles B.; Glass, Jeffrey T. [Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708 (United States); Piascik, Jeffrey R.; Gilchrist, Kristin H. [Center for Materials and Electronic Technologies, RTI International, Research Triangle Park, North Carolina 27709 (United States); Stoner, Brian R. [Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708 (United States); Center for Materials and Electronic Technologies, RTI International, Research Triangle Park, North Carolina 27709 (United States)

2010-06-15

240

Surface mount type LD module with receptacle structure  

Microsoft Academic Search

We have developed a new surface mount LD module. This module is suitable for mass production while making cost reductions and providing simple and stable handling. The module simplifies the assembly procedure, and it is possible to mount this module directly onto the printed circuit board. The module was produced using hybrid integrated mounting technology including passive alignment technique of

Naoki Yamamoto; Takashi Kojima; Tetsuo Watanabe; Seimi Sasaki; Akitoshi Mesaki; Fumitake Suzuki; Hironao Hakogi; Kazunori Miura

1999-01-01

241

Introduction of a 2.5m telescope mount  

Microsoft Academic Search

Telescope is a very important tool for astronomers to survey and study the stellar stars and astronomical phenomena. The performance of a telescope is its capability to track the observing objects and keep the image on the field of view during the observing period. All these functions will be achieved by telescope mount, including mount control system. The mount is

Bozhong Gu; Guomin Wang; Jiang Xiang

2008-01-01

242

Design and control of MR mount for vibration isolation  

Microsoft Academic Search

In this paper, a new design of magnetorheological (MR) mount was proposed. The current coils of the MR mount generated magnetic field and adjusted the viscosity of the magnetorheological fluid. The current coils were usually set with the inner piston, and were easily broken by vibration or friction. Here we constructed fixed coils into the MR mount. This design can

2010-01-01

243

Design Optimization of Marine Engine-Mount System  

Microsoft Academic Search

Design optimization of marine engine-mount system for vibration control is presented in this paper. The engine is modelled as a rigid body with supports connected to a rigid floor. The mounts are modelled as three-dimensional isolators with hysteresis damping. The objective is to select the stiffness coefficient and orientations of individual mount in order to minimize the vertical force transmitted

J. S. Tao; G. R. Liu; K. Y. Lam

2000-01-01

244

DESIGN OPTIMIZATION OF MARINE ENGINE-MOUNT SYSTEM  

Microsoft Academic Search

Design optimization of marine engine–mount system for vibration control is presented in this paper. The engine is modelled as a rigid body with supports connected to a rigid floor. The mounts are modelled as three-dimensional isolators with hysteresis damping. The objective is to select the stiffness coefficient and orientations of individual mount in order to minimize the vertical force transmitted

J. S. TAO; G. R. LIU; K. Y. LAM

2000-01-01

245

5. Panama Mount. Note concrete ring and metal rail. Foundation ...  

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

5. Panama Mount. Note concrete ring and metal rail. Foundation for ammunition depot noted in photograph no.3 is seen at center rear of mount. Camera position for photograph no. 1 is seen on road at left center distance. Looking 163° S. - Fort Funston, Panama Mounts for 155mm Guns, Skyline Boulevard & Great Highway, San Francisco, San Francisco County, CA

246

High temperature structural sandwich panels  

NASA Astrophysics Data System (ADS)

High strength composites are being used for making lightweight structural panels that are being employed in aerospace, naval and automotive structures. Recently, there is renewed interest in use of these panels. The major problem of most commercial available sandwich panels is the fire resistance. A recently developed inorganic matrix is investigated for use in cases where fire and high temperature resistance are necessary. The focus of this dissertation is the development of a fireproof composite structural system. Sandwich panels made with polysialate matrices have an excellent potential for use in applications where exposure to high temperatures or fire is a concern. Commercial available sandwich panels will soften and lose nearly all of their compressive strength temperatures lower than 400°C. This dissertation consists of the state of the art, the experimental investigation and the analytical modeling. The state of the art covers the performance of existing high temperature composites, sandwich panels and reinforced concrete beams strengthened with Fiber Reinforced Polymers (FRP). The experimental part consists of four major components: (i) Development of a fireproof syntactic foam with maximum specific strength, (ii) Development of a lightweight syntactic foam based on polystyrene spheres, (iii) Development of the composite system for the skins. The variables are the skin thickness, modulus of elasticity of skin and high temperature resistance, and (iv) Experimental evaluation of the flexural behavior of sandwich panels. Analytical modeling consists of a model for the flexural behavior of lightweight sandwich panels, and a model for deflection calculations of reinforced concrete beams strengthened with FRP subjected to fatigue loading. The experimental and analytical results show that sandwich panels made with polysialate matrices and ceramic spheres do not lose their load bearing capability during severe fire exposure, where temperatures reach several hundred degrees Centigrade. Hence the material has excellent potential for various types of applications. The analytical predictions from both models provide reasonably accurate results. Glass, AR-glass, carbon and Nicalon tows and carbon fabrics could be successfully used as skin reinforcements increasing the flexural stiffness and strength of the core. No occurrence of fiber delamination was observed.

Papakonstantinou, Christos G.

247

Grid-connected polymer solar panels: initial considerations of cost, lifetime, and practicality.  

PubMed

Large solar panels were constructed from polymer solar cell modules prepared using full roll-to-roll (R2R) manufacture based on the previously published ProcessOne. The individual flexible polymer solar modules comprising multiple serially connected single cell stripes were joined electrically and laminated between a 4 mm tempered glass window and black Tetlar foil using two sheets of 0.5 mm thick ethylene vinyl acetate (EVA). The panels produced up to 8 W with solar irradiance of ~960 Wm?², and had outer dimensions of 1 m x 1.7 m with active areas up to 9180 cm². Panels were mounted on a tracking station and their output was grid connected between testing. Several generations of polymer solar cells and panel constructions were tested in this context to optimize the production of polymer solar panels. Cells lacking a R2R barrier layer were found to degrade due to diffusion of oxygen after less than a month, while R2R encapsulated cells showed around 50% degradation after 6 months but suffered from poor performance due to de-lamination during panel production. A third generation of panels with various barrier layers was produced to optimize the choice of barrier foil and it was found that the inclusion of a thin protective foil between the cell and the barrier foil is critical. The findings provide a preliminary foundation for the production and optimization of large-area polymer solar panels and also enabled a cost analysis of solar panels based on polymer solar cells. PMID:21165057

Medford, Andrew J; Lilliedal, Mathilde R; Jørgensen, Mikkel; Aarø, Dennis; Pakalski, Heinz; Fyenbo, Jan; Krebs, Frederik C

2010-09-13

248

Next-generation head-mounted display  

NASA Astrophysics Data System (ADS)

Head Mounted Displays (HMDs) have been utilized by the military for various applications since the 1980's. In the 1990's, this technology migrated to the consumer market. Most of these early systems suffered the major drawback that they were "look-at" versus "see through" systems, which prevented the user from seeing their environment. This reduced the utility of the devices and could potentially lead to safety issues. This presentation discusses the optical design of a novel see-through High Definition display device with a 40 degree field of view.

McGuire, James P., Jr.

2010-02-01

249

Design of the Discovery Channel Telescope mount  

NASA Astrophysics Data System (ADS)

The Discovery Channel Telescope is a 4.2-meter clear aperture telescope undertaken by the Lowell Observatory in Flagstaff, Arizona. It will feature an interchangeable secondary assembly to allow the use of either a prime focus instrument or a secondary mirror. In addition, it will have an active optical system and provisions for a wide range of instruments. This paper describes the design of the telescope mount and drive systems. Particular challenges associated with the design include: consideration for the weight of the 3500 lb Prime Focus Assembly (PFA) instrument; interchangeable secondary assemblies; and providing thermal and mechanical stability in between updates to maintain alignment between optical elements.

Finley, David T.; Squires, Chuck; McCreight, Brad A.; Smith, Byron W.; Chylek, Tomas; Venetiou, Alexander

2008-08-01

250

Mount St. Helens VolcanoCam  

NSDL National Science Digital Library

This webcam shows a static image of Mount St. Helens taken from the Johnston Ridge Observatory. The Observatory and VolcanoCam are located at an elevation of approximately 4,500 feet, about five miles from the volcano. The observer is looking approximately south-southeast across the North Fork Toutle River Valley. The VolcanoCam image automatically updates approximately every five minutes. Other features include current conditions reports, weather updates, an image achive, and eruption movies. In addition, there are frequently asked questions, and information about using the VolcanoCam image and funding for the VolcanoCam.

251

Total volatile flux from Mount Etna  

Microsoft Academic Search

The Total Volatile (TV) flux from Mount Etna volcano has been characterised for the first time, by summing the simultaneously-evaluated fluxes of the three main volcanogenic volatiles: H2O, CO2 and SO2. SO2 flux was determined by routine DOAS traverse measurements, while H2O and CO2 were evaluated by scaling MultiGAS-sensed H2O\\/SO2 and CO2\\/SO2 plume ratios to the UV-sensed SO2 flux. The

A. Aiuppa; G. Giudice; S. Gurrieri; M. Liuzzo; M. Burton; T. Caltabiano; A. J. S. McGonigle; G. Salerno; H. Shinohara; M. Valenza

2008-01-01

252

An efficient model of an equipment loaded panel for active control design studies.  

PubMed

An effective investigation of alternative control strategies for the reduction of vibration levels in satellite structures requires realistic, yet efficient, structural models to simulate the dynamics of the system. These models should include the effects of the sources, receivers, supporting structure, sensors, and actuators. In this paper, a modeling technique which meets these requirements is developed and some active control strategies are briefly investigated. The particular subject of investigation is an equipment-loaded panel and the equations of motion are derived using the Lagrange-Rayleigh-Ritz (LRR) approach. The various pieces of equipment on the panel are mounted on active or passive suspensions, and resonators are used to represent the internal dynamics of the mounted equipment. Control of the panel, which transmits vibrations from sources to receivers, is by means of piezoelectric patches and the excitation consists of dynamic loads acting on the equipment enclosures and/or directly on the panel. The control objective is to minimize the displacement at an arbitrary output location. The LRR model developed is verified against one produced by using the finite-element method. Finally, some initial controller design studies are undertaken to investigate and compare the effectiveness of different control strategies (e.g., minimization at the source, along the vibration path, or at the receiver). PMID:11051494

Aglietti, G S; Langley, R S; Rogers, E; Gabriel, S B

2000-10-01

253

The "Virtual" Panel: A Computerized Model for LGBT Speaker Panels  

ERIC Educational Resources Information Center

Recent societal trends indicate more tolerance for homosexuality, but prejudice remains on college campuses. Speaker panels are commonly used in classrooms as a way to educate students about sexual diversity and decrease negative attitudes toward sexual diversity. The advent of computer-delivered instruction presents a unique opportunity to…

Beasley, Christopher; Torres-Harding, Susan; Pedersen, Paula J.

2012-01-01

254

The "Virtual" Panel: A Computerized Model for LGBT Speaker Panels  

ERIC Educational Resources Information Center

|Recent societal trends indicate more tolerance for homosexuality, but prejudice remains on college campuses. Speaker panels are commonly used in classrooms as a way to educate students about sexual diversity and decrease negative attitudes toward sexual diversity. The advent of computer-delivered instruction presents a unique opportunity to…

Beasley, Christopher; Torres-Harding, Susan; Pedersen, Paula J.

2012-01-01

255

Helmet-mounted sight and display testing  

NASA Astrophysics Data System (ADS)

The results of tests conducted with helmet-mounted sights (HMS) and helmet- mounted displays (HMD) are presented. To compare the accuracy of the different HMS systems (on a magnetic, acoustic, or optical basis) the authors find and unify a test procedure for verification. The test conditions vary, depending on the principle of the HMS system. Magnetic systems should be tested with the influence of magnetic disturbances, ultrasonic systems with the occurrence of noise and changing characteristics of the dispersion medium, and optical systems under high luminance to check saturation effects of the sensors. Modern integrated helmets (IH) consist of CRTs for displaying binocular images of TV--or infrared--cameras and superimposed symbology and a second channel with image intensifier tubes (IIT). Important points for checking CRTs are the resolution, distortion, homogeneity, and brightness in day and night. The most important test for the IIT channel is the resolution measured as a function of luminance of the test pattern. Tests of the basic helmet regarding head fit, earphone, center of gravity, weight, etc., are also necessary because these properties have an influence on the performance of the complete man-machine system.

Boehm, Hans-Dieter V.; Schreyer, Herbert; Schranner, R.

1991-08-01

256

Segmented lens mount for projection optics  

NASA Astrophysics Data System (ADS)

Since mechanical accuracy is of major importance in the field of optics, piece production is still prevailing and implementations of techniques of mass production are a challenge. Using injection molding of plastic elements onto sheet metals (e.g. so-called OUTSERT-technology) provides a new approach to resolve this issue. Clearly, such a technique could save spacers and retainer rings as well as process time in assembly and allow an economical production of optics mounts at high production rates, if the required mechanical accuracy can be met. For a mobile projection application, the lens barrel of a fix-focus projection lens has been realized in this technology. The design is based on a segmented lens cage with fixed and loose plastic bearings parts for each optical element. Important for accurate lens alignment is a 3-fold symmetry of the cage. Due to the symmetrical layout, reproducibility of the injection molding process is of greater importance than absolute mechanical accuracy. A careful characterization of the constituent parts has been performed, usg non-contacting 3d-shape measurements. The data obtained so far reveal satisfying results with respect to reproducibility and selected dimensions of the lens seats. Also, tilt deviations of the lens surfaces in the assembled mount were determined. Further, a preliminary measurement of the Modulation Transfer Function (MTF), to check the optical performance, has been obtained and shows encouraging results.

Kalkowski, Gerhard; Damm, Christoph; Peschel, Thomas; Leital, Armin; Kunze, Norbert

2003-05-01

257

Low Temperature Effects: Surface Mount Capacitors  

SciTech Connect

The low signal to noise ratio produced by the VLPC (Visible Light Photon Counter) chip in the detection of a single photon necessitates the use of a filtering capacitor. Maximum performance of the filtering capabilities dictate the placement of the capacitor be as close to the VLPC chip as possible. However, the chip operates at extremely low temperatures (7K). In addition, available space within the VLPC cassette is limited. Therefore it is desired to find a capacitor which provides good temperature stability at cryogenic temperatures within a minimal space (e.g. surface mounted). This engineering note presents the results from a test of the effect of low temperature on surface mounted capacitors. Preliminary testing suggested that capacitors of the tantalum type would provide the best te mperature stability at cryogenic temperatures, therefore two different tantalum capacitors were tested. A ceramic capacitor was also included in the results as a comparison, even though preliminary results suggested the ceramic type would not provide sufficient temperature stability.

Clark, D.; /Fermilab

1992-08-17

258

Experience with HEP analysis on mounted filesystems.  

NASA Astrophysics Data System (ADS)

We present results on different approaches on mounted filesystems in use or under investigation at DESY. dCache, established since long as a storage system for physics data has implemented the NFS v4.1/pNFS protocol. New performance results will be shown with the most current version of the dCache server. In addition to the native usage of the mounted filesystem in a LAN environment, the results are given for the performance of the dCache NFS v4.1/pNFS in WAN case. Several commercial vendors are currently in alpha or beta phase of adding the NFS v4.1/pNFS protocol to their storage appliances. We will test some of these vendor solutions for their readiness for HEP analysis. DESY has recently purchased an IBM Sonas system. We will present the result of a thorough performance evaluation using the native protocols NFS (v3 or v4) and GPFS. As the emphasis is on the usability for end user analysis, we will use latest ROOT versions and current end user analysis code for benchmark scenarios.

Fuhrmann, Patrick; Gasthuber, Martin; Kemp, Yves; Ozerov, Dmitry

2012-12-01

259

Athermal mounting of optics in metallic housings  

NASA Astrophysics Data System (ADS)

This paper illustrates an athermal mounting for a Zinc Selenide (ZnSe) optic in an AlBeMet housing for use at cryogenic temperatures. The GOES-R Advanced Baseline Imager (ABI) instrument beamsplitter utilizes this design and the difficulty is the significant delta in the coefficient of thermal expansion (CTE) between the housing and the optic. The high discrepancy in CTE is exacerbated by a large thermal range from an ambient assembly to cryogenic operational temperature. The assembly utilizes CTE matched clips bonded to the optic using a well controlled bondline. The clips are attached to an optimized spacer of a high CTE material that is used to reduce the CTE mismatch. The spacers are coupled to a four flexure design that is symmetric in both axes. The net effect reduces the apparent CTE between the optic and the housing in a space constrained mounting. The flexures allow the final small amount of expansion room that the assembly requires as it goes over a large temperature swing. This design was qualified through extensive thermal cycling and vibration testing, and exhibited performance acceptable for production.

Leahy, Zachary N.; Magner, Andrew J.

2013-09-01

260

Panel Discussion II. Reconciling Observations and Modeling of Star Formation at High Redshifts  

NASA Astrophysics Data System (ADS)

This is the written account of the second of two panel discussions, on Reconciling observations and modeling of star formation at high redshifts. The chair of the panel was Pavel Kroupa, and panel members were Marc Balcells, John Beckman, Christopher Conselice, and Joseph Silk. After a short introduction by each of the panelists, panel and audience entered into a lively discussion, centered around the following six themes: the mass function of pre-stellar gas clouds; a possible top-heavy initial mass function at high redshifts versus mini-quasars as the first sources of ionization; the integrated galactic initial mass function; possible differences in specific star formation rates in disks and in massive galaxies; whether merging rates yield a wrong prediction for massive galaxies, and what is the physics behind the onset of the red sequence of galaxies; and the case of dark matter-dominated dwarf galaxies versus tidal dwarf galaxies.

Knapen, J. H.

2008-06-01

261

Mount St. Helens 1980 and Mount Pelee 1902—Flow or surge?  

NASA Astrophysics Data System (ADS)

The far-reaching directed “blast” of Mount St. Helens and the devastating nuees ardentes of Mount Pelée produced deposits that in many places consist of three main layers: a basal gravelly or sandy layer 1, a massive or bedded ash layer 2, and a capping ash-cloud layer 3. These thin and in part landscape-mantling deposits are generally ascribed to pyroclastic surges, and the dune bedding seen in parts of layer 2 has reinforced this interpretation. There are several reasons, however, for preferring a pyroclastic-flow origin: (1) much of layer 2 is unequivocal pyroclastic flow; (2) the tripartite subdivision and landscape mantling habit is similar to that displayed by ignimbrites of the low-aspect-ratio type; (3) the deflation of a pyroclastic surge and the subsequent deposition of particulate material will tend not to conserve the fine ash and dust that are abundant in valley-ponded parts of layer 2 and cannot explain the observed tendency for layer 2 to show stronger fines depletion on ridges than in valley bottoms; and (4) the coarseness and the variance of grain size found within dune-bedded bed sets in Mount St. Helens layer 2 are like those of very weak pyroclastic surges, and the dune bedding most likely resulted from local minor turbulence (as could have been caused by surface roughness in a mountainous terrain littered with tree stumps and fallen trees) in a thin depositing pyroclastic flow. The directed blast and nuees ardentes at Mount St. Helens and Mount Pelée are interpreted to have been violently emplaced pyroclastic flows producing deposits of low-aspect-ratio type, the characteristics of which stem from an exceptionally high flow velocity.

Walker, George P. L.; McBroome, Lisa A.

1983-10-01

262

Peg supported thermal insulation panel  

DOEpatents

A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprises high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure. 2 figs.

Nowobilski, J.J.; Owens, W.J.

1985-04-30

263

Laser illuminated flat panel display.  

National Technical Information Service (NTIS)

A 10 inch laser illuminated flat panel Planar Optic Display (POD) screen has been constructed and tested. This POD screen technology is an entirely new concept in display technology. Although the initial display is flat and made of glass, this technology ...

J. T. Veligdan

1995-01-01

264

ASIST 2003: Part II: Panels.  

ERIC Educational Resources Information Center

|Forty-six panels address topics including women in information science; users and usability; information studies; reference services; information policies; standards; interface design; information retrieval; information networks; metadata; shared access; e-commerce in libraries; knowledge organization; information science theories; digitization;…

Proceedings of the ASIST Annual Meeting, 2003

2003-01-01

265

RAPID: Prototyping control panel interfaces  

Microsoft Academic Search

RAPID is a design environment to support human factors specialists in designing user interfaces for small control panels. RAPID permits modeling of both the appearance and behavior of operator interfaces. Its main goal is to allow exploration of a greater number of design alternatives by decreasing the time and effort required to generate and evaluate those alternatives. It is a

Karl Freburger; Honeywell Bull

1987-01-01

266

Design recommendations for sandwich panels  

Microsoft Academic Search

Professor Davies and L. Heselius summarize a major piece of work by CIB W56, which it is hoped will have immediate practical application; in particular, the importance of possible durability problems in structural sandwich panels used in building construction which had not previously been recognized. The research background to the proposals will be described in a companion paper.

J. M. Davies; L. Heselius

1993-01-01

267

Buckling analysis of composite panels  

Microsoft Academic Search

The aim of this paper is to present the buckling analysis of a laboratory tested composite panel under axial compression by means of a simple shell finite element that is developed and presented herein. The tests were performed in the Aircraft Structure Laboratory of the Faculty of Aerospace Engineering at the Technion. Buckling is achieved via incremental geometrically nonlinear analysis

E. Gal; R. Levy; H. Abramovich; P. Pavsner

2006-01-01

268

Peg supported thermal insulation panel  

DOEpatents

A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprising high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure.

Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

1985-01-01

269

An experimental radome panel evaluation  

NASA Astrophysics Data System (ADS)

Modern antenna radomes are made of materials that tend to shed water to minimize their RF attenuation when wet. The microwave performance of these materials has been studied experimentally. Radome attenuation was measured as a function of frequency, rain rate, rain incidence angle, RF incidence angle, and polarization. The tests were performed on (1) new, clean radome panels, (2) used, dirty radome panels, (3) cleaned, used radome panels, and (4) panels treated with hydrophobic paint. The results show weak loss dependence on frequency over the 13-20 GHz frequency range of interest, which increases slowly with rain rate from 2.5 to 29 mm/h except for surfaces that are wettable, where the dependence on rate is much stronger. Loss is nearly independent of rain incidence angle, but it is strongly a function of surface condition. Hydrophobic paint is shown to be very effective. The test setup used, limitations imposed by the real world, and a simplified model of radome loss derived from the test results are described.

Dietrich, Fred J.; West, Donald B.

1988-11-01

270

Environmental evaluation of Surface Mounted Devices (SMD)  

SciTech Connect

We evaluated the comparative reliability of solder interconnections used for Leadless Chip Carriers (LCCs), Meaded, and flat-pack hybrid microcircuits mounted on FR-4 glass epoxy printed wiring boards (PWBs). The board assemblies, with solder attached microcircuits, were repeatedly thermal cycled from - 65 to +125{degrees}C. We recognize that this temperature range far exceeds most testing of assemblies. The purposes of these tests were to evaluate worst-case conditions and to obtain comparative information. Identical PWB assemblies, using these three component types, were subjected to both thermal shock testing (1 cycle every 42 minutes) and temperature cycle testing (1 cycle every 3 hours). The double testing evaluated the differences in stress application and evaluated the potential of replacing slow transition, expensive temperature cycle testing (which has been an industry standard for years) with the much more rapid thermal shock testing.

Barr, V.C.; Andrade, A.D.

1997-06-01

271

Reliability analysis of Surface Mount Technology (SMT)  

NASA Astrophysics Data System (ADS)

This report indoctrinates the reader with the understanding of what is involved and necessary in designing and assessing the reliability of surface mount products. Deterministic methods were used to identify the primary design and environmental drivers and statistical methods were used to generate a SMT reliability assessment model. Due to the unavailability of field failure data, finite element analyses (FEA) and environmental test data were used to quantify the model parameters. Information obtained during the model development, internal Harris documents, and military and commercial standards were used to generate design, manufacturing, and quality guidelines. Finally, reliability testing and its correlation to actual life expectancy is addressed to decide the appropriateness of the existing MIL-STD testing requirements and whether these documents need to be modified to correlate to actual life conditions more accurately.

Myers, Chris A.; Chakrabarti, Kalyan K.; Merlino, Donald H.; Palmer, Edward G.; Pello, Edward F.

1993-03-01

272

Rack assembly for mounting solar modules  

DOEpatents

A rack assembly is provided for mounting solar modules over an underlying body. The rack assembly may include a plurality of rail structures that are arrangeable over the underlying body to form an overall perimeter for the rack assembly. One or more retention structures may be provided with the plurality of rail structures, where each retention structure is configured to support one or more solar modules at a given height above the underlying body. At least some of the plurality of rail structures are adapted to enable individual rail structures o be sealed over the underlying body so as to constrain air flow underneath the solar modules. Additionally, at least one of (i) one or more of the rail structures, or (ii) the one or more retention structures are adjustable so as to adapt the rack assembly to accommodate solar modules of varying forms or dimensions.

Plaisted, Joshua Reed (Oakland, CA); West, Brian (San Francisco, CA)

2010-12-28

273

Reusable vibration resistant integrated circuit mounting socket  

SciTech Connect

This invention discloses a novel form of socket for integrated circuits to be mounted on printed circuit boards. The socket uses a novel contact which is fabricated out of a bimetallic strip with a shape which makes the end of the strip move laterally as temperature changes. The end of the strip forms a barb which digs into an integrated circuit lead at normal temperatures and hold it firmly in the contact, preventing loosening and open circuits from vibration. By cooling the contact containing the bimetallic strip the barb end can be made to release so that the integrated circuit lead can be removed from the socket without damage either to the lead or to the socket components.

Evans, C.N.

1993-12-31

274

Crater Lake, Oregon: Mount Mazama, Oregon  

NSDL National Science Digital Library

This resource about Mount Mazama, a volcano in the Cascade Range, covers its geographic setting, and geologic and eruptive history. The site also offers information about Crater Lake, a caldera that was created by the largest known eruption from any Cascade Range volcano. The 8 x 10 kilometer caldera lies in the remains of this Pleistocene stratovolcano cluster covering 400 square kilometers in the southern Oregon Cascades. Prior to its climactic eruption, its southern and southeastern flanks were deeply incised by glacial valleys that today form U-shaped notches in the caldera wall. Links labeled 'Special Items of Interest' include volcanic highlights and features, and points of interest. Other links lead to maps, graphics, images, publications, reports, and other items of interest involving this volcano and others.

275

Solder Mounting Technologies for Electronic Packaging  

SciTech Connect

Soldering provides a cost-effective means for attaching electronic packages to circuit boards using both small scale and large scale manufacturing processes. Soldering processes accommodate through-hole leaded components as well as surface mount packages, including the newer area array packages such as the Ball Grid Arrays (BGA), Chip Scale Packages (CSP), and Flip Chip Technology. The versatility of soldering is attributed to the variety of available solder alloy compositions, substrate material methodologies, and different manufacturing processes. For example, low melting temperature solders are used with temperature sensitive materials and components. On the other hand, higher melting temperature solders provide reliable interconnects for electronics used in high temperature service. Automated soldering techniques can support large-volume manufacturing processes, while providing high reliability electronic products at a reasonable cost.

VIANCO, PAUL T.

1999-09-23

276

The Mount Rainier Lahar Detection System  

NASA Astrophysics Data System (ADS)

To mitigate the risk of unheralded lahars from Mount Rainier, the U.S. Geological Survey, in cooperation with Pierce County, Washington, installed a lahar-detection system on the Puyallup and Carbon rivers that originate on Mount Rainier's western slopes. The system, installed in 1998, is designed to automatically detect the passage of lahars large enough to potentially affect populated areas downstream (approximate volume threshold 40 million cubic meters), while ignoring small lahars, earthquakes, extreme weather and floods. Along each river valley upstream, arrays of independent lahar-monitoring stations equipped with geophones and short tripwires telemeter data to a pair of redundant computer base stations located in and near Tacoma at existing public safety facilities that are staffed around the clock. Monitored data consist of ground-vibration levels, tripwire status, and transmissions at regular intervals. The base stations automatically evaluate these data to determine if a dangerous lahar is passing through the station array. The detection algorithm requires significant ground vibration to occur at those stations in the array that are above the anticipated level of inundation, while lower level `deadman' stations, inundated by the flow, experience tripwire breakage or are destroyed. Once a base station detects a lahar, it alerts staff who execute a call-down of public-safety officials and schools, initiating evacuation of areas potentially at risk. Because the system's risk-mitigation task imposes high standards of reliability on all components, it has been under test for several years. To date, the system has operated reliably and without false alarms, including during the nearby M6.8 Nisqually Earthquake on February 28, 2001. The system is being turned over to Pierce County, and activated as part of their lahar warning system.

Lockhart, A. B.; Murray, T. L.

2003-12-01

277

Gastroenterology-Urology Devices Panel Meeting  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Gastroenterology-Urology Devices Panel Session I June 27, 2013 1 of 2 Gastroenterology-Urology Devices Panel Meeting June 27, 2013 ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

278

14 CFR 1259.600 - Panel description.  

Code of Federal Regulations, 2012 CFR

...AND SPACE ADMINISTRATION NATIONAL SPACE GRANT COLLEGE AND FELLOWSHIP PROGRAM Space Grant Review Panel § 1259.600 Panel description...Grant program and project awards, the Space Grant fellowship program and the designation and...

2012-01-01

279

Clinical Chemistry and Clinical Toxicology Devices Panel ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionClinical Chemistry and Clinical Toxicology Devices Panel Meeting April 25, 2013 Panel Discussion Questions Session III - Isoniazid Test Strips ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

280

Orthopaedic and Rehabilitation Devices Panel Meeting Brief ...  

Center for Biologics Evaluation and Research (CBER)

... The Panel then voted five to three to recommend to the FDA that the PMA be found 'not approvable.' The Panel cited concern with the need to ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

281

21 CFR 660.3 - Reference panel.  

Code of Federal Regulations, 2013 CFR

...FOR LABORATORY TESTS Antibody to Hepatitis B Surface Antigen § 660.3 Reference panel. A Reference Hepatitis B Surface Antigen Panel shall...potency and specificity of Antibody to Hepatitis B Surface Antigen. [40 FR...

2013-04-01

282

21 CFR 660.3 - Reference panel.  

Code of Federal Regulations, 2011 CFR

...FOR LABORATORY TESTS Antibody to Hepatitis B Surface Antigen § 660.3 Reference panel. A Reference Hepatitis B Surface Antigen Panel shall...potency and specificity of Antibody to Hepatitis B Surface Antigen. [40 FR...

2011-04-01

283

Thin film EL — Prognosis for panel displays  

Microsoft Academic Search

Prognostication in the field of flat panel displays has historically been, at best, a sporty proposition. This has been notoriously true during the long turbulent history of attempts to capitalize on the intriguing possibility of large thin panels of \\

K. O. Fugate

1977-01-01

284

A new chamber method for mounting tissue sections.  

PubMed

We describe a method for mounting tissue sections onto slides that is faster and especially useful for those sections too thin or too large to be mounted easily by conventional methods. We have devised a chamber system for mounting tissue sections onto slides under buffer solution. Because of the buoyancy of sections in the buffer solution and the elimination of fluid surface tension, it is easy to move, turn, unfold, and spread even quite large or thin tissue sections. In-solution-mounting in this chamber also greatly reduces the force of the brush tip used to maneuver sections onto the slide, thus resulting in less damage to the tissue sections. This chamber greatly facilitates mounting multiple tissue sections onto a single slide. The new method is applicable to protocols that stain tissue sections either before (e.g. cytochrome oxidase) or after (e.g. cresyl violet) section mounting. PMID:15910983

Xiao, Jun; Levitt, Jonathan B

2005-01-07

285

Lightweight composites for modular panelized construction  

NASA Astrophysics Data System (ADS)

Rapid advances in construction materials technology have enabled civil engineers to achieve impressive gains in the safety, economy, and functionality of structures built to serve the common needs of society. Modular building systems is a fast-growing modern, form of construction gaining recognition for its increased efficiency and ability to apply modern technology to the needs of the market place. In the modular construction technique, a single structural panel can perform a number of functions such as providing thermal insulation, vibration damping, and structural strength. These multifunctional panels can be prefabricated in a manufacturing facility and then transferred to the construction site. A system that uses prefabricated panels for construction is called a "panelized construction system". This study focuses on the development of pre-cast, lightweight, multifunctional sandwich composite panels to be used for panelized construction. Two thermoplastic composite panels are proposed in this study, namely Composite Structural Insulated Panels (CSIPs) for exterior walls, floors and roofs, and Open Core Sandwich composite for multifunctional interior walls of a structure. Special manufacturing techniques are developed for manufacturing these panels. The structural behavior of these panels is analyzed based on various building design codes. Detailed descriptions of the design, cost analysis, manufacturing, finite element modeling and structural testing of these proposed panels are included in this study in the of form five peer-reviewed journal articles. The structural testing of the proposed panels involved in this study included flexural testing, axial compression testing, and low and high velocity impact testing. Based on the current study, the proposed CSIP wall and floor panels were found satisfactory, based on building design codes ASCE-7-05 and ACI-318-05. Joining techniques are proposed in this study for connecting the precast panels on the construction site. Keywords: Modular panelized construction, sandwich composites, composite structural insulated panels (CSIPs).

Vaidya, Amol S.

286

Automatic Panel Extraction of Color Comic Images  

Microsoft Academic Search

In this paper, an automatic approach for detecting and extracting panels in a color comic image is proposed. Panel extraction\\u000a is challenging because the background color, the background pixel locations, the panel shapes and the panel layout are not\\u000a known in advance. In our approach, uniform color stripes are first identified and used as separators to segment the color\\u000a comic

Chung Ho Chan; Howard Leung; Taku Komura

2007-01-01

287

Performance introduction of a 2.5m telescope mount  

NASA Astrophysics Data System (ADS)

In recent years, Nanjing Institute of Astronomical Optics and Technology (NIAOT) has made several telescopes for observatories all around the world. In 2011 NIAOT just finished the development of a 2.5m optical/infrared telescope mount. First part of this paper is to introduce the mount structure and their adjustment work. Second part is to give an introduction of the mount performance test methods and test results finished on NIAOT workshop.

Wang, Guomin; Gu, Bozhong; Yang, Shihai; Jiang, Xiang; Zhang, Zhiyong; Ye, Yu; Xu, Jin

2012-09-01

288

A multiple pointing-mount control strategy for space platforms  

Microsoft Academic Search

A new disturbance-adaptive control strategy for multiple pointing-mount space platforms is proposed and illustrated by consideration of a simplified 3-link dynamic model of a multiple pointing-mount space platform. Simulation results demonstrate the effectiveness of the new platform control strategy. The simulation results also reveal a system 'destabilization phenomena' that can occur if the set of individual platform-mounted experiment controllers are

C. D. Johnson

1992-01-01

289

Compressive tests on short continuous panels  

Microsoft Academic Search

Results of eight tests on stiffened panels under axial compression until collapse and beyond are presented. The tests consider panels with different combinations of mechanical material properties and geometric configurations for the stiffeners including the use of ‘U’-shaped stiffeners. The specimens are three bay panels with associated plate made of high tensile steel S690. Four different configurations are considered for

José Manuel Gordo; C. Guedes Soares

2008-01-01

290

Full Scale GLARE Fuselage Panel Tests.  

National Technical Information Service (NTIS)

A GLARE fuselage panel, representative of the crown section of the Fokker 100 fuselage just in front of the wing, has been tested in the curved fuselage panel test facility that was recently commissioned at NLR. Panels are loaded by internal air pressure ...

R. W. A. Vercammen H. H. Ottens

1996-01-01

291

Fully Modified OLS for Heterogeneous Cointegrated Panels  

Microsoft Academic Search

This chapter uses fully modified OLS principles to develop new methods for estimating and testing hypotheses for cointegrating vectors in dynamic panels in a manner that is consistent with the degree of cross sectional heterogeneity that has been permitted in recent panel unit root and panel cointegration studies. The asymptotic properties of various estimators are compared based on pooling along

Peter Pedroni

2000-01-01

292

Submerged photovoltaic solar panel: SP2  

Microsoft Academic Search

The behavior of a photovoltaic (PV) panel submerged in water is studied. A sizeable increase of electric power output is found for shallow water. Experiments have been carried out for single crystalline silicon panels. Results are discussed and the increase in efficiency is investigated and understood. Operating problems are analyzed and the advantages of using underwater solar panels are pointed

M. Rosa-Clot; P. Rosa-Clot; G. M. Tina; P. F. Scandura

2010-01-01

293

Thermic diode solar panels - A brief summary  

Microsoft Academic Search

Thermic diode solar panels for use in heating buildings are described. Each panel combines all the necessary elements of a complete solar energy system (collector, controls, storage, heat exchangers and ducting) into a four by eight foot module. No moving parts or external power are involved. Thermic panels are also compared to other solar heating systems, such as air heating

S. Buckley

1976-01-01

294

Second meeting of the technical advisory panel  

Microsoft Academic Search

The second technical advisory panel meeting for the DEEP STEAM Project was held on January 31-February 1, 1979 in Albuquerque. The panel reviewed the status of the DEEP STEAM Project including injection string modifications, the downhole generator program, high pressure combustion experiments, and numerical simulations. Among the panel recommendations were: (1) the DOE EOR target in terms of depth of

B. E. Bader; R. L. Fox; D. R. Johnson

1979-01-01

295

TESPI: Thermal Electric Solar Panel Integration  

Microsoft Academic Search

A photovoltaic panel with a heat extraction system is studied. The solution we suggest consists in superimposing a water layer on the PV panel: the water layer absorbs the infrared radiation leaving the visible part almost unaffected. This allows a good PV efficiency and heat production. This particular setup is called Thermal Electric Solar Panel Integration (TESPI) and it is

M. Rosa-Clot; P. Rosa-Clot; G. M. Tina

2011-01-01

296

JTEC panel on display technologies in Japan  

Microsoft Academic Search

This report is one in a series of reports that describes research and development efforts in Japan in the area of display technologies. The following are included in this report: flat panel displays (technical findings, liquid crystal display development and production, large flat panel displays (FPD's), electroluminescent displays and plasma panels, infrastructure in Japan's FPD industry, market and projected sales,

Lawrence E. Tannas Jr.; William E. Glenn; Thomas Credelle; J. William Doane; Arthur H. Firester; Malcolm Thompson

1992-01-01

297

USGS: Mount St. Helens, Washington Eruption 2004-08  

NSDL National Science Digital Library

"After 18 years of relative quiescence, Mount St. Helens volcano recaptured the world's attention when it showed signs of reawakening in September 2004." This USGS website offers online factsheets on Mount St. Helens activity from September 2004 through March 2005. Visitors can discover the height of the new lava dome, new technology for monitoring eruptions, and the possible hazards related to Mount St. Helens' activity. The website supplies fascinating topographic images of the changes in Mount St. Helens crater, photos of its new growing lava dome, and more.

2005-11-04

298

USGS: Mount St. Helens, Washington Eruption 2004, 2005  

NSDL National Science Digital Library

"After 18 years of relative quiescence, Mount St. Helens volcano recaptured the world's attention when it showed signs of reawakening in September 2004." This USGS website offers online factsheets on Mount St. Helens activity from September 2004 through March 2005. Visitors can discover the height of the new lava dome, new technology for monitoring eruptions, and the possible hazards related to Mount St. Helens' activity. The website supplies fascinating topographic images of the changes in Mount St. Helens crater, photos of its new growing lava dome, and more.

299

Cost\\/efficiency evaluation of descriptive analysis panels — I. Panel size  

Microsoft Academic Search

Flavour and texture profiling data obtained from an experienced, well-trained, homogeneous panel (N = 20) were analysed by ANOVA and multivariate techniques for the full panel as well as for several smaller panels (N = 10 and N = 5) which were drawn, a posteriori and at random, from the original panel. Homogeneity of variance was maintained over all the

Bonnie M. King; Paul Arents; Nathalie Moreau

1995-01-01

300

Robotized spraying of prefabricated panels  

Microsoft Academic Search

A robotic manufacturing cell of pre-fabricated glass reinforced cement panels for construction industry has been developed by DISAM for the Spanish construction company Dragados, SA. The main contribution of the developed system is the automatic programming and control of the whole plan. The architect's 3D-drawing of the building facade done on a CAD system serves as input. From the CAD

L. F. Penin; C. Balaguer; J. M. Pastor; F. J. Rodriguez; A. Barrientos; R. Aracil

1998-01-01

301

Fundamentals of Composite Sandwich Panels  

NSDL National Science Digital Library

This laboratory exercise will help instructors explain the particulars of designing composite sandwich panels, which are used in a variety of applications like surfboards, wake boards and corrugated cardboard. The experiment is explained step by step; this document will serve as a framework for instructors and may be downloaded in PDF format. The exercise would be appropriate for grades 4 through 12. It should take anywhere from one to three hours to complete.

Flinn, Brian D.

2012-11-09

302

Flat panel planar optic display  

SciTech Connect

A prototype 10 inch flat panel Planar Optic Display, (POD), screen has been constructed and tested. This display screen is comprised of hundreds of planar optic class sheets bonded together with a cladding layer between each sheet where each glass sheet represents a vertical line of resolution. The display is 9 inches wide by 5 inches high and approximately 1 inch thick. A 3 milliwatt HeNe laser is used as the illumination source and a vector scanning technique is employed.

Veligdan, J.T. [Brookhaven National Lab., Upton, NY (United States). Dept. of Advanced Technology

1994-11-01

303

Panel urges cloning ethics boards  

SciTech Connect

A 7-month review of the system that guides U.S. policy on the ethical, legal, and social issues (ELSI) of the Human Genome Project has concluded that it is time for a radical overhaul. A report completed last month recommends that a high-level policy board be created in the office of the Secretary of Health and Human Services to help develop policies on such sensitive issues as genetic privacy, antidiscrimination legislation, public education on genetic risks, and the regulation of genetic testing. If accepted, the proposal-from a review panel chaired by attorney Mark Rothstein of the University of Houston and geneticist M. Anne Spence of the University of California, Irvine-would create a new panel of 15 to 18 members to serve as {open_quotes}a public forum for discussion of ... critical issues.{close_quotes} This panel would replace the current advisory body, known as the ELSI Working Group, and end what the report calls a {open_quotes}discordance{close_quotes} between the broad scope of the Working Group and the {open_quotes}very limited focus{close_quotes} of the research program under which it operates.

Marshall, E.

1997-01-03

304

CPAP: Cancer Panel Analysis Pipeline.  

PubMed

Targeted sequencing using next-generation sequencing technologies is currently being rapidly adopted for clinical sequencing and cancer marker tests. However, no existing bioinformatics tool is available for the analysis and visualization of multiple targeted sequencing datasets. In the present study, we use cancer panel targeted sequencing datasets generated by the Life Technologies Ion Personal Genome Machine Sequencer as an example to illustrate how to develop an automated pipeline for the comparative analyses of multiple datasets. Cancer Panel Analysis Pipeline (CPAP) uses standard output files from variant calling software to generate a distribution map of SNPs among all of the samples in a circular diagram generated by Circos. The diagram is hyperlinked to a dynamic HTML table that allows the users to identify target SNPs by using different filters. CPAP also integrates additional information about the identified SNPs by linking to an integrated SQL database compiled from SNP-related databases, including dbSNP, 1000 Genomes Project, COSMIC, and dbNSFP. CPAP only takes 17 min to complete a comparative analysis of 500 datasets. CPAP not only provides an automated platform for the analysis of multiple cancer panel datasets but can also serve as a model for any customized targeted sequencing project. PMID:23893859

Huang, Po-Jung; Yeh, Yuan-Ming; Gan, Ruei-Chi; Lee, Chi-Ching; Chen, Ting-Wen; Lee, Cheng-Yang; Liu, Hsuan; Chen, Shu-Jen; Tang, Petrus

2013-08-13

305

Gallium arsenide: Solar panel assembly technology  

SciTech Connect

Gallium arsenide (GaAs) solar cell devices are maturing at 18% AMO efficiencies for liquid phase epitaxy (LPE) technology, and efforts must be intensified placing necessary focus on the development of panel assembly techniques, and ultimately panel manufacturing methods capable of maintaining these high efficiencies for on-panel operation. Key problems and solutions are described which were experienced during the assembly of flight qualified solar panels using Spectrolab's mature (silicon) panel manufacturing processes for assembly of LPE GaAs solar cells. These cells were produced by Hughes Malibu (supplied by the U.S. Air Force WPAFB) ranging in efficiency from 15 to 17 percent, air mass zero (AMO) 28 degrees C. Cell assembly methods for coverglass installation, submodule, and circuit soldering, as well as panel bonding are discussed. The LIPS II satellite, using a GaAs solar cell panel was successfully launched in 1983.

Zemmrich, D.; Loo, R.; Mardesich, N.; McFarlane, B.

1984-05-01

306

Electro-optic component mounting device  

DOEpatents

A technique is provided for integrally mounting a device such as an electro-optic device (50) in a transmission line to avoid series resonant effects. A center conductor (52) of the transmission line has an aperture (58) formed therein for receiving the device (50). The aperture (58) splits the center conductor into two parallel sections on opposite sides of the device. For a waveguide application, the center conductor is surrounded by a conductive ground surface (54), which is spaced apart from the center conductor with a dielectric material (56). One set of electrodes formed on the surface of the electro-optic device (50) is directly connected to the center conductor 52 and an electrode formed on the surface of the electro-optic device is directly connected to the conductive ground surface (54). The electrodes formed on the surface of the electro-optic device are formed on curved sections of the surface of the device to mate with correspondingly shaped electrodes on the conductor and ground surface to provide a uniform electric field across the electro-optic device. The center conductor includes a passage ( 60) formed therein for passage of optical signals to an electro-optic device.

Gruchalla, Michael E. (Albuquerque, NM)

1994-01-01

307

Electro-optic component mounting device  

DOEpatents

A technique is provided for integrally mounting a device such as an electro-optic device in a transmission line to avoid series resonant effects. A center conductor of the transmission line has an aperture formed therein for receiving the device. The aperture splits the center conductor into two parallel sections on opposite sides of the device. For a waveguide application, the center conductor is surrounded by a conductive ground surface which is spaced apart from the center conductor with a dielectric material. One set of electrodes formed on the surface of the electro-optic device is directly connected to the center conductor and an electrode formed on the surface of the electro-optic device is directly connected to the conductive ground surface. The electrodes formed on the surface of the electro-optic device are formed on curved sections of the surface of the device to mate with correspondingly shaped electrodes on the conductor and ground surface to provide a uniform electric field across the electro-optic device. The center conductor includes a passage formed therein for passage of optical signals to an electro-optic device. 10 figs.

Gruchalla, M.E.

1994-09-13

308

Volcano seismology from around the world: Case studies from Mount Pinatubo (Philippines) Galeras (Colombia), Mount Wrangell and Mount Veniaminof (Alaska)  

NASA Astrophysics Data System (ADS)

A compilation of research papers in volcano seismology is presented: (1) to study the configuration of magma systems beneath volcanoes, (2) to describe unexpected effects of the shaking from a regional earthquake on volcanic systems, and (3) to integrate seismicity investigations into a conceptual model for the magma system of a volcano. This work was undertaken because much research in volcano seismology is needed to help in hazard assessment. The possible configuration of magma systems beneath Mount Pinatubo, Philippines, and Galeras Volcano, Colombia, is studied with b-value mapping. We suggest models for earthquake-volcanoes interactions by studying the declines in local seismicity at Mt. Wrangell and Mt. Veniaminof, Alaska, following the 3 November 2002 Denali Fault Earthquake (DFE). Finally, a model for the magmatic-hydrothermal system beneath Mt. Veniaminof is proposed by deriving a velocity model and relocating the earthquakes, and by studying the temporal changes of frequencies and attenuation (Q) at the source of long-period (LP) events. Results from b-value mapping confirm that volcanoes are characterized by localized zones of high b-values, and also indicate that the internal structure of volcanoes is variable. Analyses of the background seismicity at Mt. Veniaminof suggest that earthquakes result from locally-induced stresses and that LP events may represent the response of a shallow hydrothermal system to heat input from below. The study of declines in seismicity at Mt. Wrangell and Mt. Veniaminof volcanoes following the DFE indicates that the dynamic shaking from regional shocks can physically damage a volcano and together with the static stress changes can affect the local seismicity for extended periods. We conclude that the use of simple methods allows a better understanding of the seismicity at volcanoes in Alaska, but most importantly in developing countries where the small number of seismograph stations puts challenging limitations for research.

Sanchez-Aguilar, John Jairo

309

Volumetric pattern analysis of fuselage-mounted airborne antennas  

Microsoft Academic Search

A volumetric pattern analysis of fuselage-mounted airborne antennas at high frequencies was investigated. The primary goal of the investigation was to develop a numerical solution for predicting radiation patterns of airborne antennas in an accurate and efficient manner. An analytical study of airborne antenna pattern problems is presented in which the antenna is mounted on the fuselage near the top

C. L. Yu

1976-01-01

310

Hyperstereopsis in helmet-mounted NVDs: time to contact estimation  

Microsoft Academic Search

The side mounting of the night-vision sensors on some helmet-mounted systems creates a situation of hyperstereopsis in which the binocular cues available to the operator are exaggerated such that distances around the point of fixation are increased. For a moving surface approaching the observer, the increased apparent distance created by hyperstereopsis should result in greater apparent speed of approach towards

Patrick Flanagan; Geoffrey W. Stuart; Peter Gibbs

2007-01-01

311

Mosses, Liverworts and Hornworts of Mount Canobolas, New South Wales  

Microsoft Academic Search

A surprising number of endemic species of plants and animals are found within Mount Canobolas State Recreation Area (33°21' S, 148°59' E, 1395 m asl) 15 km SW of Orange in the Central West of New South Wales. During this survey of bryophytes on Mount Canobolas, 75 species, including 60 moss species, 13 liverwort species and two hornwort species were

Alison Downing; Ron Oldfield; Eleanor Fairbairn-Wilson

312

Preliminary Design of Tracking Mount for Movable SLR  

Microsoft Academic Search

In this paper, we present the result of preliminary design of tracking mount for ARGO-M which is a movable satellite laser ranging (SLR) system developed by Korea Astronomy and Space Science Institute (KASI). The tracking mount consists of a couple of core parts such as driving motors, encoders and bearings, and the requirements of each parts are determined on the

Cheol Hoon Park; Young Su Son; Byung In Kim

2010-01-01

313

Mount Roraima, State of Roraima The Sentinel of Macunaíma  

Microsoft Academic Search

The 2,734-meter high Mount Roraima represents the triple border landmark of Brazil, Venezuela and Guyana. It features the morphologic characteristics of a tabletop mountain or a tepuy, whose vertical scarps in excess of 500 meters in height are formed by nearly 2 billion year old sandstones. The base of the mount was first reached by the British expedition led by

Nelson Joaquim Reis

314

A 3 DOF model for an electro magnetic air mount  

Microsoft Academic Search

springs in an air mount. A pneumatic control is a commonly employed method for active control. Air pressure in the air chambers is controlled by adjusting air valves. [lJ-[3] Although other active controls are applied in the air mount, the pneu­ matic control is essential because EM and MR cannot generate power as high as pneumatics. The pneumatics is in

Hyung Tae Kim; CheolHo Kim; SungBok Kang; KangWon Lee; JaeHo Baek; HyunHee Han

2011-01-01

315

SOAR Telescope: 4-meter high-performance-mount performance results  

Microsoft Academic Search

The 4.1-meter SOuthern Astrophysical Research (SOAR) Telescope mount and drive systems have been commissioned and are in routine operation. The telescope mount, the structure and its full drive systems, was fully erected and tested at the factory prior to reassembly and commissioning at the observatory. This successful approach enabled complete integration, from a concrete pier to a pointing and tracking

Michael Warner; Victor Krabbendam; German Schumacher; Juan C. Delgadillo

2004-01-01

316

Improvement of the Useful Temperature Range of Rubber Shock Mounts.  

National Technical Information Service (NTIS)

Shock mounts prepared from compounds based on emulsion polymerized SBR, solution-polymerized SBR, and high-strength silicone elastomers were tested under shear loads over a temperature range from -67F to +158F. Silicone mounts exhibit negligible change in...

J. D. Ruby

1970-01-01

317

Surface Mount Solder Joint Issues Impacting Avionic Integrity.  

National Technical Information Service (NTIS)

This paper addresses some issues impacting surface mount solder joint life. Solder joint life expectancy depends on the level of stress experienced and the number of cycles of stress. Stress levels in the solder joint or surface mount fillet are related t...

C. L. Lingg

1990-01-01

318

Multiple Head Mounted Displays in Virtual and Augmented Reality Applications  

Microsoft Academic Search

With the recent introduction of low cost head mounted displays (HMDs), prices of HMD-based virtual reality setups dropped considerably. In various application areas personal head mounted displays can be utilized for groups of users to deliver different context sensitive information to individual users. We present a hardware setup that allows attaching 12 or more HMDs to a single PC. Finally

H. Kaufmann; M. Csisinko

2007-01-01

319

Head-mounted display evaluation in anesthesia for rigid cystoscopy  

Microsoft Academic Search

Aims. We evaluated a head-mounted display (HMD) of vital signs in the clinical environment to determine whether the effects of HMDs found in prior simulator studies would (a) generalize to practice, and (b) be any different during crisis management (should a crisis occur). Background. Head-mounted displays (HMDs) can superimpose the patient's vital signs over the anesthesiologist's field of view. Prior

Perry Fabian MBBS; W. J. Russell MBBS; DIC FANZCA FRCA

320

78 FR 34995 - Response Systems to Adult Sexual Assault Crimes Panel (Response Systems Panel); Notice of Federal...  

Federal Register 2010, 2011, 2012, 2013

...Response Systems to Adult Sexual Assault Crimes Panel (Response Systems Panel...Response Systems to Adult Sexual Assault Crimes Panel. DATES: A meeting of the Response Systems to Adult Sexual Assault Crimes Panel (hereafter referred to...

2013-06-11

321

Heavy Ion Physics  

Microsoft Academic Search

Calorimetric low temperature detectors have the potential to become powerful tools for applications in many fields of heavy ion physics. A brief overview of heavy ion physics at present and at the next generation heavy ion facilities is given with a special emphasis on the conditions for heavy ion detection and the potential advantage of cryogenic detectors for applications in heavy

P. Egelhof; S. Kraft-Bermuth

322

Remote, mobile telemedicine: the satellite transmission of medical data from Mount Logan.  

PubMed

The purpose of this investigation was to demonstrate the potential of remote, mobile telemedicine during a four-week, high-altitude mountaineering expedition to Mount Logan, Canada's highest summit. Using a mobile satellite terminal and a laptop computer (both powered by a photovoltaic solar panel), ECG tracings and blood pressure measurements, in addition to colour images, short-segment video and audio clips were transmitted during the course of the ascent. The data were transmitted via a mobile communications satellite to a ground station in Ottawa, a distance of over 4000 km. The data were then transferred to the public switched data network and delivered to the University of Ottawa Heart Institute for analysis. Similarly, data were transmitted from the ground station to the expedition team on Mount Logan throughout the ascent. Using this technique, medical diagnosis and emergency care can be facilitated in extreme and isolated locations lacking a telecommunications infrastructure. Such technology has applications in developing countries, disaster response efforts, remote civilian and military operations, and in space operations. PMID:9218396

Otto, C; Pipe, A

1997-01-01

323

Imaging properties of retro-reflective materials used in head-mounted projective displays (HMPDs)  

NASA Astrophysics Data System (ADS)

The concept of head-mounted projective display (HMPD) has been recently proposed as an alternative to conventional eyepiece-type head-mounted displays (HMDs). An HMPD consists of a pair of miniature projection lenses and flat panel displays mounted on the head and retro-reflective sheeting material placed strategically in the environment. Recent efforts have been made to demonstrate the feasibility of the imaging concept and prototypes have been built. Our research indicates that the quality and properties of the retro-reflective material play critical roles in the overall imaging quality of HMPDs. The retro-reflective sheeting material is commonly used in traffic control and photonic lighting systems, rather than optimized for imaging purpose as in the HMPDs. The size and shape of the microstructures cause artifacts on images. In this paper, we will mainly focus on the evaluation of the various existing retro-reflective materials, and the examination of the impact of the material characteristics on imaging properties. The basic structures of the existing materials are briefly reviewed, the characteristic parameters used to quantify the material properties are defined, and a few samples are evaluated. The characteristics of interest include: the size and shape of the microstructure, the distribution pattern and density of the microstructure, retro-reflectivity, the profile of the reflected light, diffraction artifacts and ghost imaging. Finally, a comprehensive analysis are presented to examine how the material characteristics play their roles in an imaging system, such as the HMPD, and predict the imaging artifacts caused by these characteristics.

Hua, Hong; Gao, Chunyu; Rolland, Jannick P.

2002-08-01

324

Multifocal planes head-mounted displays.  

PubMed

Stereoscopic head-mounted displays (HMD's) provide an effective capability to create dynamic virtual environments. For a user of such environments, virtual objects would be displayed ideally at the appropriate distances, and natural concordant accommodation and convergence would be provided. Under such image display conditions, the user perceives these objects as if they were objects in a real environment. Current HMD technology requires convergent eye movements. However, it is currently limited by fixed visual accommodation, which is inconsistent with real-world vision. A prototype multiplanar volumetric projection display based on a stack of laminated planes was built for medical visualization as discussed in a paper presented at a 1999 Advanced Research Projects Agency workshop (Sullivan, Advanced Research Projects Agency, Arlington, Va., 1999). We show how such technology can be engineered to create a set of virtual planes appropriately configured in visual space to suppress conflicts of convergence and accommodation in HMD's. Although some scanning mechanism could be employed to create a set of desirable planes from a two-dimensional conventional display, multiplanar technology accomplishes such function with no moving parts. Based on optical principles and human vision, we present a comprehensive investigation of the engineering specification of multiplanar technology for integration in HMD's. Using selected human visual acuity and stereoacuity criteria, we show that the display requires at most 27 equally spaced planes, which is within the capability of current research and development display devices, located within a maximal 26-mm-wide stack. We further show that the necessary in-plane resolution is of the order of 5 microm. PMID:18349886

Rolland, J P; Krueger, M W; Goon, A

2000-07-01

325

Banner clouds observed at Mount Zugspitze  

NASA Astrophysics Data System (ADS)

Systematic observations of banner clouds at Mount Zugspitze in the Bavarian Alps are presented and discussed. One set of observations draws on daily time lapse movies, which were taken over several years at this mountain. Identifying banner clouds with the help of these movies and using simultaneous observations of standard variables at the summit of the mountain provides climatological information regarding the banner clouds. In addition, a week-long measurement campaign with an entire suite of instruments was carried through yielding a comprehensive set of data for two specific banner cloud events. The duration of banner cloud events has a long-tailed distribution with a mean of about 40 min. The probability of occurrence has both a distinct diurnal and a distinct seasonal cycle, with a maximum in the afternoon and in the warm season, respectively. These cycles appear to correspond closely to analogous cycles of relative humidity, which maximize in the late afternoon and during the warm season. In addition, the dependence of banner cloud occurrence on wind speed is weak. Both results suggest that moisture conditions are a key factor for banner cloud occurrence. The distribution of wind direction during banner cloud events slightly deviates from climatology, suggesting an influence from the specific Zugspitz orography. The two banner cloud events during the campaign have a number of common features: the windward and the leeward side are characterized by different wind regimes, however, with mean upward flow on both sides; the leeward air is both moister and warmer than the windward air; the background atmosphere has an inversion just above the summit of Mt. Zugspitze; the lifting condensation level increases with altitude. The results are discussed, and it is argued that they are consistent with previous Large Eddy Simulations using idealized orography.

Wirth, V.; Kristen, M.; Leschner, M.; Reuder, J.; Schween, J. H.

2012-04-01

326

Intrasexual mounting in the beetle Diaprepes abbreviatus (L.).  

PubMed Central

The weevil Diaprepes abbreviatus shows three kinds of same-sex mountings: males mount other unpaired males, males mount males already engaged in copulation and females mount other females. Four hypotheses were evaluated in order to explain same-sex matings by males: (i) female mimicry by inferior males, (ii) dominance of larger males which affects the behaviour of small males, (iii) sperm transfer in which smaller males gain some reproductive success by 'hitchhiking' their sperm with the sperm of larger males, and (iv) poor sex recognition. Data from mate choice and sperm competition experiments rejected the female mimicry, dominance and sperm transfer hypotheses and supported the poor sex recognition hypothesis. We tested three hypotheses in order to explain female mounting behaviour: (i) females mimic male behaviour in order to reduce sexual harassment by males, (ii) females mount other females in order to appear larger and thereby attract more and larger males for mating, and (iii) female mimicry of males. The results of our mate choice experiments suggested that the female mimicry of males hypothesis best explains the observed female mounting behaviour. This result is also consistent with the poor sex recognition hypothesis which is the most likely explanation for male and female intrasexual mating behaviour in many insect species.

Harari, A R; Brockmann, H J; Landolt, P J

2000-01-01

327

Active magnetic compensation composed of shielding panels.  

PubMed

Magnetically shielded rooms (MSRs) with materials of high permeability and active shield systems have been used to shield magnetic noise for biomagnetic measurements up to now. However, these techniques have various disadvantages. Therefore, we have developed a new shielding system composed of shielding panels using an active compensation technique. In this study, we evaluated the shielding performance of several unit panels attached together. Numerical and experimental approaches indicated that the shielding factor of a cubic model composed of 24 panels was 17 for uniform fields, and 7 for disturbances due to car movement. Furthermore, the compensation space is larger than that of an ordinary active system using large coils rather than panels. Moreover, the new active compensation system has the important advantage that panels of any shape can be assembled for occasional use because the unit panels are small and light. PMID:16012696

Kato, K; Yamazaki, K; Sato, T; Haga, A; Okitsu, T; Muramatsu, K; Ueda, T; Kobayashi, K; Yoshizawa, M

2004-11-30

328

Sustainable simulated commodity tropical hardwood panel  

US Patent & Trademark Office Database

A simulated commodity tropical hardwood-based panel includes an engineered veneer face including a first wood from one or more sustainable sources of wood. The face has a dyed coloring, a simulated grain, or a dyed coloring and a simulated grain that is substantially similar to the coloring, grain, or coloring and grain of a tropical hardwood veneer. The panel further includes a back and a core disposed between the face and back. The face, the core and back are stacked and adhered together to form a laminated panel. The face of the simulated commodity tropical hardwood-based panel has an appearance that is substantially similar to the appearance of the face veneer of a commodity tropical hardwood-based panel that includes the tropical hardwood veneer. The panel comprises no tropical hardwood from a non-sustainable source of wood.

2013-04-09

329

Overview of the tectonic setting and recent studies of eruptions of Mount St. Helens, Washington  

Microsoft Academic Search

Mount St. Helens lies along the western front of the Cascade Range between Mount Rainier, Washington, and Mount Hood, Oregon. This is an area of transition, both geologically and geophysically. North of Mount Rainier, late Cenozoic volcanism is limited to the major stratovolcanoes, whereas south of Mount Hood the volcanic cover from both stratovolcanoes and monogenetic vents is nearly continuous

Craig S. Weaver; Stephen D. Malone

1987-01-01

330

Coital behavior in dogs: Effects of estrogen on mounting by females  

Microsoft Academic Search

Female dogs mounted other females more frequently when the 2nd bitch was in estrus, but the hormonal state of the mounting individual had little influence upon mount frequency. Estrogen rendered a female more provocative or stimulating and more cooperative or receptive to mounting by another dog. During heterosexual tests, estrous females tended to mount males selectively, responding readily to some

Frank A. Beach; Charles M. Rogers; Burney J. LeBoeuf

1968-01-01

331

Heavy Flavor in heavy ion collisions  

SciTech Connect

The recent results on heavy flavor at the Relativistic Heavy Ion Collider will be reviewed. The results on charm cross section, heavy flavor collectivity and energy loss, color screening effect and quarkonia production mechanism will be highlighted. Precise measurements with future detector upgrades will be discussed.

Ruan, L.J.

2010-06-21

332

Development of a Plasma Panel Muon Detector  

SciTech Connect

A radiation detector technology based on Plasma Display Panels (PDP), the underlying engine of panel plasma television displays is being investigated. Emerging from this well established television technology is the Plasma Panel Sensor (PPS), a novel variant of the micropattern radiation detector. The PPS is fundamentally a fast, high resolution detector comprised of an array of plasma discharge cells operating in a hermetically sealed gas mixture. We report on the PPS development effort, including proof-of-principle results of laboratory signal observations.

Levin, Daniel S. [University of Michigan; Ball, Robert [University of Michigan; Beene, James R [ORNL; Benhammou, Yan [Tel Aviv University; Chapman, J. Wehrley [University of Michigan; Dai, T. [University of Michigan; Etzion, E [Tel Aviv University; Friedman, Dr. Peter S. [Integrated Sensors, LLC; Ben Moshe, M. [Tel Aviv University; Silver, Yiftah [Tel Aviv University; Varner Jr, Robert L [ORNL; Weaverdyck, Curtis [University of Michigan; White, Sebastion [Brookhaven National Laboratory (BNL); Zhou, Bing [University of Michigan

2010-01-01

333

Buckling Analysis of Stiffened Composite Panels  

Microsoft Academic Search

In view of high specific strength and specific modulus, stiffened composite panels have been widely used in modern engineering\\u000a fields. However, stiffened composite panels can develop buckling failure under service conditions as they are generally very\\u000a thin. The buckling strength of stiffened composite panels is usually sensitive to the variation of boundary conditions, stacking\\u000a sequences and lamina thickness. In order

Nian-Zhong Chen; C. Guedes Soares

334

Gallium arsenide - Solar panel assembly technology  

Microsoft Academic Search

Gallium arsenide (GaAs) solar cell devices are maturing at 18 percent AM0 efficiencies for liquid phase epitaxy (LPE) technology, and efforts must be intensified placing necessary focus on the development of panel assembly techniques, and ultimately panel manufacturing methods capable of maintaining these high efficiencies for on-panel operation. Key problems and solutions are described which were experienced during the assembly

D. Zemmrich; N. Mardesich; B. Macfarlane; R. Loo

1984-01-01

335

Structural Analysis of Sandwich Foam Panels  

Microsoft Academic Search

The Sandwich Panel Technologies including Structural Insulated Panels (SIPs) can be used to replace the conventional wooden-frame construction method. The main purpose of this Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and SGI Venture, Inc. was to design a novel high R-value type of metal sandwich panelized technology. This CRADA project report presents design concept discussion and numerical

Jan Kosny; X. Sharon Huo

2010-01-01

336

Fishing trap with degradable cull ring panel  

US Patent & Trademark Office Database

Herein we describe crustacean fishing traps having degradable cull ring panels, as well as methods for ensuring that such traps have reduced functionality after becoming derelict. Derelict crab and lobster traps have a negative economic and ecological impact, and thus it is advantageous to use degradable traps that will lose their ability to catch and retain fish over time. Incorporating degradable cull ring panels into such traps provides an effective, economical solution. Suitable degradable cull ring panels are described herein.

2013-02-19

337

Apparent Brecciation Gradient, Mount Desert Island, Maine  

NASA Astrophysics Data System (ADS)

Mount Desert Island, Maine, comprises a shallow level, Siluro-Devonian igneous complex surrounded by a distinctive breccia zone ("shatter zone" of Gilman and Chapman, 1988). The zone is very well exposed on the southern and eastern shores of the island and provides a unique opportunity to examine subvolcanic processes. The breccia of the Shatter Zone shows wide variation in percent matrix and clast, and may represent a spatial and temporal gradient in breccia formation due to a single eruptive or other catastrophic volcanic event. The shatter zone was divided into five developmental stages based on the extent of brecciation: Bar Harbor Formation, Sols Cliffs breccia, Seeley Road breccia, Dubois breccia, and Great Head breccia. A digital camera was employed to capture scale images of representative outcrops using a 0.5 m square Plexiglas frame. Individual images were joined in Adobe Photoshop to create a composite image of each outcrop. The composite photo was then exported to Adobe Illustrator, which was used to outline the clasts and produce a digital map of the outcrop for analysis. The fractal dimension (Fd) of each clast was calculated using NIH Image and a Euclidean distance mapping method described by Bérubé and Jébrak (1999) to quantify the morphology of the fragments, or the complexity of the outline. The more complex the fragment outline, the higher the fractal dimension, indicating that the fragment is less "mature" or has had less exposure to erosional processes, such as the injection of an igneous matrix. Sols Cliffs breccia has an average Fd of 1.125, whereas Great Head breccia has an average Fd of 1.040, with the stages between having intermediate values. The more complex clasts of the Sols Cliffs breccia with a small amount (26.38%) of matrix material suggests that it is the first stage in a sequence of brecciation ending at the more mature, matrix-supported (71.37%) breccia of Great Head. The results of this study will be used to guide isotopic and geochemical analysis of the matrix igneous material in the attempt to better understand the dynamic processes that occur in subvolcanic environments and the mechanisms involved in breccia formation.

Hawkins, A. T.; Johnson, S. E.

2004-05-01

338

Methods and apparatus for radially compliant component mounting  

SciTech Connect

Methods and apparatus for a mounting assembly for a liner of a gas turbine engine combustor are provided. The combustor includes a combustor liner and a radially outer annular flow sleeve. The mounting assembly includes an inner ring surrounding a radially outer surface of the liner and including a plurality of axially extending fingers. The mounting assembly also includes a radially outer ring coupled to the inner ring through a plurality of spacers that extend radially from a radially outer surface of the inner ring to the outer ring.

Bulman, David Edward (Cincinnati, OH); Darkins, Jr., Toby George (Loveland, OH); Stumpf, James Anthony (Columbus, IN); Schroder, Mark S. (Greenville, SC); Lipinski, John Joseph (Simpsonville, SC)

2012-03-27

339

Orthopaedic and Rehabilitation Devices Panel Meeting ...  

Center for Biologics Evaluation and Research (CBER)

... Orthopaedic and Rehabilitation Devices Panel Meeting - March 31, 2009. The Orthopaedic and Rehabilitation Devices ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

340

Ophthalmic Devices Panel Advisory Committee Meeting Brief ...  

Center for Biologics Evaluation and Research (CBER)

... PANEL DELIBERATIONS. Clear Lens Extraction for the Correction of Presbyopia. Clear Lens Extraction (CLE) is an intraocular ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

341

Development of Lightweight, Fire Retardant, Low Smoke, Thermally Stable, High Strength Floor Paneling: Passenger Floor Panels.  

National Technical Information Service (NTIS)

A fire retardant, low smoke-emitting, thermally stable, light weight sandwich paneling, suitable for high traffic flooring on a passenger aircraft, was evaluated. The material is of sandwich panel construction, with graphite face sheets (a phenolic-vinyl ...

F. J. Gorges

1982-01-01

342

Panel Questions FDA seeks input from the Panel on three sets ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Panel Questions FDA seeks input from the Panel on three sets of scientific questions. The first set of questions concerns ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

343

7 CFR 1940.968 - Rural Economic Development Review Panel Grant (Panel Grant).  

Code of Federal Regulations, 2010 CFR

...administrative costs associated with a State rural economic development review panel. (b) Objective...costs associated with the State rural economic development review panels meeting requirements...action taken or planned to resolve the situation; and (4) Objectives and...

2013-01-01

344

Potential for boom-mounted remote sensing applications in seedling ...  

Treesearch

... is widely used for classification of vegetation structure and health on industrial ... Many nurseries are equipped with overhead irrigation boom systems ... Potential for boom-mounted remote sensing applications in seedling quality monitoring.

345

Three Dimensional Helmet Mounted Primary Flight Reference for Paratroopers.  

National Technical Information Service (NTIS)

This thesis seeks to develop a Heads Up Display (HUD) presented on a Helmet Mounted Display (HMD), which presents a three-dimensional, graphical, predictive navigational reference to a paratrooper during a High Altitude, High Opening (HAHO) parachute jump...

J. I. Thompson

2005-01-01

346

21. FIRST FLOOR, DETAIL VIEW, ORIGINAL WALL MOUNTED LIGHT FIXTURE ...  

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

21. FIRST FLOOR, DETAIL VIEW, ORIGINAL WALL MOUNTED LIGHT FIXTURE IN THE CLOSET TO THE EAST OF ENTRANCE, WITH SCALE - Armco-Ferro-Mayflower House, 251 Lake Front Drive (moved from Chicago, IL), Beverly Shores, Porter County, IN

347

Head Mounted Displays Analyses of Current Technologies and Future Applications.  

National Technical Information Service (NTIS)

This document provides a top level analysis of Head Mounted Display (HMD) systems for new missions or functions. It provides a collection of data and objective assessment on HMD technology and analyzes evolving HMD technologies that may be incorporated in...

M. V. Saulibio

1997-01-01

348

6. INTERIOR DETAIL OF GUN MOUNT ON TERRACE, LOOKING EAST ...  

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

6. INTERIOR DETAIL OF GUN MOUNT ON TERRACE, LOOKING EAST (1992). - Wright-Patterson Air Force Base, Area B, Building 22, Armament Laboratory & Gun Range, On flightline between Tenth & Eleventh Streets, Dayton, Montgomery County, OH

349

Cleaning of Printed Circuit Assemblies with Surface-Mounted Components.  

National Technical Information Service (NTIS)

The need for ever-increasing miniaturization of airborne instrumentation through the use of surface mounted components closely placed on printed circuit boards highlights problems with traditional board cleaning methods. The reliability of assemblies whic...

J. S. Arzigian

1989-01-01

350

Thermal Cycling Tests on Surface-Mount Assemblies.  

National Technical Information Service (NTIS)

The capability of surface-mount (SM) solder joints to withstand various thermal cycle stresses was evaluated through electrical circuit resistance changes of a test pattern and by visual examination for cracks in the solder after exposure to thermal cycli...

C. W. Jennings

1988-01-01

351

17. DETAIL VIEW OF CUPOLA ATOP OPERATOR'S CABIN WHICH MOUNTS ...  

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

17. DETAIL VIEW OF CUPOLA ATOP OPERATOR'S CABIN WHICH MOUNTS SIGNAL HORNS, WEATHER VANE - Sacramento River Bridge, Spanning Sacramento River at California State Highway 275, Sacramento, Sacramento County, CA

352

14. BRIDGE ABUTMENT AND ARCH TRUSS MOUNTING PLATE SHOWING EYEBAR ...  

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

14. BRIDGE ABUTMENT AND ARCH TRUSS MOUNTING PLATE SHOWING EYE-BAR CONNECTION AND EYE-BAR PIN LOCATION - Spruce Street Bridge, East Spruce Street, 500 Block, spanning Power Canal, Sault Ste. Marie, Chippewa County, MI

353

SIRPH: Steerable Infrared Picture on Helmet Mounted Display.  

National Technical Information Service (NTIS)

Helmet Mounted Displays (HMD's) are being paid remarkable attention as an essential aid to pilots of both fixed and rotary wing aircraft: The technological improvements such equipment are experiencing place them in an outstanding position among avionics. ...

G. Balzarotti L. Fiori B. Midollini

1995-01-01

354

10. Storage and shipping container, ballistic missile, mounted on ballistic ...  

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

10. Storage and shipping container, ballistic missile, mounted on ballistic missile trailer, view from left front - Ellsworth Air Force Base, Delta Flight, 10 mile radius around Exit 127 off Interstate 90, Interior, Jackson County, SD

355

11. Storage and shipping container, ballistic missile, mounted on ballistic ...  

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

11. Storage and shipping container, ballistic missile, mounted on ballistic missile trailer, view from left side - Ellsworth Air Force Base, Delta Flight, 10 mile radius around Exit 127 off Interstate 90, Interior, Jackson County, SD

356

DE LAVAUD CASTING FACING NORTH, NOTE CORE MOUNTED IN PREPARATION ...  

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

DE LAVAUD CASTING FACING NORTH, NOTE CORE MOUNTED IN PREPARATION FOR NEXT PIPE CASTING. - United States Pipe & Foundry Company Plant, Pipe Casting & Testing Area, 2023 St. Louis Avenue at I-20/59, Bessemer, Jefferson County, AL

357

7. DETAIL OF FLY TWA SIGN MOUNTED ON NORTHWEST EDGE ...  

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

7. DETAIL OF FLY TWA SIGN MOUNTED ON NORTHWEST EDGE OF ROOF. LOOKING SOUTHEAST. - TWA Maintenance Hangar, South side of Tinicum Island Road, Philadelphia International Airport, Philadelphia, Philadelphia County, PA

358

Liquid Crystal Matrix Image Source for Helmet Mounted Displays (HMDs).  

National Technical Information Service (NTIS)

The Liquid Crystal Matrix Image Source for Helmet Mounted Displays program was started in September 1982, with the dual objectives of, first, demonstrating the status of miniature liquid crystal light modulating devices and, second, developing a very high...

J. E. Gunther R. G. Hegg

1988-01-01

359

51. photocopy of Indian figure which later was mounted on ...  

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

51. photocopy of Indian figure which later was mounted on Tower. Photograph taken at Tacony Iron and Metal Co. works, c. 1892. PCA - The New Public Buildings, Penn Square, Broad & Market Streets, Philadelphia, Philadelphia County, PA

360

52. photocopy of bronze eagle which later was mounted on ...  

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

52. photocopy of bronze eagle which later was mounted on Tower. Photograph taken at Tacony Iron and Metal Co. works, c. 1892. PCA - The New Public Buildings, Penn Square, Broad & Market Streets, Philadelphia, Philadelphia County, PA

361

Temperature Measurement on Operating Surface Mounted Lighting Fixtures.  

National Technical Information Service (NTIS)

Potentially hazardous temperatures may result from adding thermal insulation in the attic above surface mounted incandescent lighting fixtures and/or operating these fixtures with lamps of higher wattage than specified. This study was concerned with the r...

P. M. Fulcomer

1979-01-01

362

Detail of diagonal end post support bracket mounted to east ...  

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

Detail of diagonal end post support bracket mounted to east face of track girder, east span. View south - New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Lift Bridge, Spanning Fort Point Channel, Boston, Suffolk County, MA

363

Position and hold mount for smaller Spacelab experiments  

NASA Astrophysics Data System (ADS)

The need for smaller experiment pointing mounts for an enhancement of the operational flexibility of Spacelab was recognized early by ESA, and a number of studies for smaller experiment mounts to complement the Instrument Pointing System (IPS) was initiated. It was found that a small pointing mount of medium pointing stability (20-30 arc sec) and a Position and Hold Mount (PHM) were required. The development of the first device had to be postponed because of high cost and lack of funding. However, in case of the PHM, the inherent simplicity of the system and the low development cost made it possible to start with the development program immediately. Attention is given to the technical characteristics of the PHM, the payload accomodation services, aspects of PHM integration and operation, safety, PHM performance improvements, PHM development philosophy, and the current state of development.

Fehse, W.; Gampe, F.

1981-01-01

364

Standard Avionics Packaging, Mounting, and Cooling Baseline Study.  

National Technical Information Service (NTIS)

This is the final report on a study concerning the development of an avionics packaging, mounting, and environmental (PME) standard and an associated cost-benefit analysis. The report compares military and commercial airlines avionics generic standards to...

S. Baily A. Jackson J. Russell C. N. D. Smith N. Sullivan

1980-01-01

365

Unique mounting for miniature optics at cryogenic temperatures  

NASA Astrophysics Data System (ADS)

This paper highlights a mounting solution for miniature, high aspect ratio Zinc Selenide (ZnSe) optics capable of sustaining high vibration loads and cryogenic temperatures. The GOES-R Advanced Baseline Imager (ABI) optical design requires ZnSe filters that have a significantly higher-than-standard aspect ratio. The thin structure, along with the material properties of ZnSe, lead to a filter that is very delicate. The mounting technique minimizes stresses induced over thermal extremes, while maintaining sufficient preload for launch loads. The filters are mounted to metallic housings using a spring loaded retainer and compliant materials. Detailed analysis of the mounting and an understanding of the unique material properties enables the design to be successful. Special attention is given to materials passing through glass transition temperatures. This design was qualified through extensive thermal cycling and vibration testing, and exhibited performance acceptable for production.

Leahy, Zachary N.; Magner, Andrew J.

2013-09-01

366

212. MOUNT SINAI CHURCH OF GOD AT 530 SOUTH TWENTIETH ...  

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

212. MOUNT SINAI CHURCH OF GOD AT 530 SOUTH TWENTIETH STREET, SOUTH SIDE - Russell Neighborhood, Bounded by Congress & Esquire Alley, Fifteenth & Twenty-first Streets, Louisville, Jefferson County, KY

367

Volcanoes - Mount St. Helens Collection (Set of 12 Documents).  

National Technical Information Service (NTIS)

This product is a collection of twelve reports concerning Mount St. Helens and the aftermath of its eruption in 1980. These reports contain information that includes limnological characteristics of selected lakes in western Washington, fluid dynamic prope...

2004-01-01

368

Laser illuminated flat panel display  

SciTech Connect

A 10 inch laser illuminated flat panel Planar Optic Display (POD) screen has been constructed and tested. This POD screen technology is an entirely new concept in display technology. Although the initial display is flat and made of glass, this technology lends itself to applications where a plastic display might be wrapped around the viewer. The display screen is comprised of hundreds of planar optical waveguides where each glass waveguide represents a vertical line of resolution. A black cladding layer, having a lower index of refraction, is placed between each waveguide layer. Since the cladding makes the screen surface black, the contrast is high. The prototype display is 9 inches wide by 5 inches high and approximately I inch thick. A 3 milliwatt HeNe laser is used as the illumination source and a vector scanning technique is employed.

Veligdan, J.T.

1995-12-31

369

Testing tail-mounted transmitters with Myocastor coypus (nutria)  

USGS Publications Warehouse

We developed a tail-mounted radio-transmitter for Myocastor coypus (nutria) that offers a practical and efficient alternative to collar or implant methods. The mean retention time was 96 d (range 57-147 d, n = 7), making this a practical method for short-term studies. The tail-mounts were less injurious to animals than collars and easier for field researchers to implement than either collars or surgically implanted transmitters.

Merino, S.; Carter, J.; Thibodeaux, G.

2007-01-01

370

Creep Analysis of a Lead-free Surface Mount Device  

Microsoft Academic Search

In this paper finite element analysis (FEA) is used to understand the effect of a non-uniform temperature distribution on the creep and fatigue behaviour of lead-free solder joints in an electronic assembly comprising of a chip resistor mounted on printed circuit board (PCB). Solder joints in surface mount devices (SMDs) operate over a temperature range as extreme as -55degC to

Pradeep Hegde; David Whalley; V. V. Silberschmidt

2007-01-01

371

Development and manufacture of visor for helmet-mounted display  

Microsoft Academic Search

The manufacturing design and process development for the Visor for the JHMCS (Joint Helmet Mounted Cueing System) are discussed. The JHMCS system is a Helmet Mounted Display (HMD) system currently flying on the F-15, F-16 and F\\/A-18 aircraft. The Visor manufacturing processes are essential to both system performance and economy. The Visor functions both as the system optical combiner and

David H. Krevor; Gregg McNelly; John Skubon; Robert Speirs

2004-01-01

372

Mount Rainier--Learning to live with volcanic risk  

USGS Publications Warehouse

Mount Rainier in Washington state is an active volcano reaching more than 2.7 miles (14,410 feet) above sea level. Its majestic edifice looms over expanding suburbs in the valleys that lead to nearby Puget Sound. USGS research over the last several decades indicates that Mount Rainier has been the source of many volcanic mudflows (lahars) that buried areas now densely populated. Now the USGS is working cooperatively with local communities to help people live more safely with the volcano.

Driedger, C. L.; Scott, K. M.

2002-01-01

373

Recycling system for printed wiring boards with mounted parts  

Microsoft Academic Search

A practical recycling system has been developed for printed wiring boards (PWBs) with electronic parts mounted on them. This system consists of part-removing, solder-removing and resin-board pulverizing\\/separating processes, and is effective in the recovery of useful materials. The authors have developed a part-removal apparatus which successfully removes through-hole devices as well as surface mounted devices from PWBs with almost no

S. Yokoyama; Y. Ikuta; M. Iji

1999-01-01

374

Application of Front-mounted Water Separation Propeller  

Microsoft Academic Search

The front-mounted water separation propeller is a new-type energy saving propulsion device, which could be used to reduce the ship resistance through jetting high-speed water-flow by the flat spout on both sides of the hull. The paper introduced the principle of the front-mounted water separation propeller, and listed the advantage of fixing this device to the underwater vehicle. The two

Qi Xiangyang; Chang Xin; Cheng Xiangru; Wang Chao

2010-01-01

375

Fatigue life estimation of surface mount solder joints  

Microsoft Academic Search

A novel and direct method to measure the stress-strain properties of surface mount solder joints is proposed in this paper. The specimen used in the experiments is a quad flat pack (QFP)-solder-printed circuit board (PCB) assembly and the fabrication of solder joints makes use of conventional surface mount technology (SMT). Mechanical cycling and thermal shock testing can be conducted directly

D. J. Xie; Yan C. Chan; J. K. L. Lai; I. K. Hui

1996-01-01

376

An infrasound array study of Mount St. Helens  

Microsoft Academic Search

The ongoing activity of Mount St. Helens provides an opportunity to study the infrasonic wavefield produced by an active, silica-rich volcano. In late October 2004, as a pilot experiment for the Acoustic Surveillance for Hazardous Eruptions (ASHE) project, we deployed two infrasound arrays, each co-located with a broadband seismometer and weather station, to continuously record seismo-acoustic signals from Mount St.

Robin S. Matoza; Michael A. H. Hedlin; Milton A. Garcés

2007-01-01

377

Mortality on Mount Everest, 1921-2006: descriptive study  

Microsoft Academic Search

Objective To examine patterns of mortality among climbers on Mount Everest over an 86 year period.Design Descriptive study.Setting Climbing expeditions to Mount Everest, 1921-2006.Participants 14 138 mountaineers; 8030 climbers and 6108 sherpas.Main outcome measure Circumstances of deaths.Results The mortality rate among mountaineers above base camp was 1.3%. Deaths could be classified as involving trauma (objective hazards or falls, n=113), as

Paul G Firth; Hui Zheng; Jeremy S Windsor; Andrew I Sutherland; Christopher H Imray; G W K Moore; John L Semple; Robert C Roach; Richard A Salisbury

2008-01-01

378

Quick-disconnect harness system for helmet-mounted displays  

Microsoft Academic Search

We have designed a pilot's harness-mounted, high voltage quick-disconnect connectors with 62 pins, to transmit voltages up to 13.5 kV and video signals with 70 MHz bandwidth, for a binocular helmet-mounted display system. It connects and disconnects with power off, and disconnects 'hot' without pilot intervention and without producing external sparks or exposing hot embers to the explosive cockpit environment.

P. T. Bapu; M. J. Aulds; Steven P. Fuchs; David M. McCormick

1992-01-01

379

Helmet-mounted systems technology planning for the future  

Microsoft Academic Search

Pilot workload is rapidly approaching unmanageable proportions. Programs involving sensor fusion and technologies such as Head-up-Displays and Multi-function Displays are being pursued to help the pilot reduce workload and increase their situational awareness. The Helmet-Mounted Systems Technology program office is developing an integrated Helmet- mounted Display system which will dramatically increase the pilot's situational awareness under all operational conditions and

Preston S. Hall; Bruce L. Campbell

1992-01-01

380

AQUEOUS HOMOGENEOUS REACTORTECHNICAL PANEL REPORT  

SciTech Connect

Considerable interest has been expressed for developing a stable U.S. production capacity for medical isotopes and particularly for molybdenum- 99 (99Mo). This is motivated by recent re-ductions in production and supply worldwide. Consistent with U.S. nonproliferation objectives, any new production capability should not use highly enriched uranium fuel or targets. Conse-quently, Aqueous Homogeneous Reactors (AHRs) are under consideration for potential 99Mo production using low-enriched uranium. Although the Nuclear Regulatory Commission (NRC) has guidance to facilitate the licensing process for non-power reactors, that guidance is focused on reactors with fixed, solid fuel and hence, not applicable to an AHR. A panel was convened to study the technical issues associated with normal operation and potential transients and accidents of an AHR that might be designed for isotope production. The panel has produced the requisite AHR licensing guidance for three chapters that exist now for non-power reactor licensing: Reac-tor Description, Reactor Coolant Systems, and Accident Analysis. The guidance is in two parts for each chapter: 1) standard format and content a licensee would use and 2) the standard review plan the NRC staff would use. This guidance takes into account the unique features of an AHR such as the fuel being in solution; the fission product barriers being the vessel and attached systems; the production and release of radiolytic and fission product gases and their impact on operations and their control by a gas management system; and the movement of fuel into and out of the reactor vessel.

Diamond, D.J.; Bajorek, S.; Bakel, A.; Flanagan, G.; Mubayi, V.; Skarda, R.; Staudenmeier, J.; Taiwo, T.; Tonoike, K.; Tripp, C.; Wei, T.; Yarsky, P.

2010-12-03

381

SOAR Telescope: 4-meter high-performance-mount performance results  

NASA Astrophysics Data System (ADS)

The 4.1-meter SOuthern Astrophysical Research (SOAR) Telescope mount and drive systems have been commissioned and are in routine operation. The telescope mount, the structure and its full drive systems, was fully erected and tested at the factory prior to reassembly and commissioning at the observatory. This successful approach enabled complete integration, from a concrete pier to a pointing and tracking telescope, on the mountain, in a rapid 3-month period. The telescope mount with its high instrument payload and demanding efficiency requirements is an important component for the success of the SOAR scientific mission. The SOAR mount utilizes rolling element bearings for both azimuth and elevation support, counter torqued sets of gear motors on azimuth and two frameless torque motors built into the elevation axles. Tracking jitter and its associated spectra, pointing errors and their sources, bearing friction and servo performances are critical criteria for this mount concept and are important factors in achieving the mission. This paper addresses the performance results obtained during the integration, commissioning, and first light periods of the telescope mount system.

Warner, Michael; Krabbendam, Victor; Schumacher, German; Delgadillo, Juan C.

2004-09-01

382

Heavy Ions In Space (HIIS) experiment  

NASA Astrophysics Data System (ADS)

The Heavy Ions In Space (HIIS) experiment has two primary objectives: (1) to measure the elemental composition of ultraheavy Galactic cosmic rays, beginning in the tin-barium region of the periodic table; and (2) to study heavy ions which arrive at LDEF below the geomagnetic cutoff, either because they are not fully stripped of electrons or because their source is within the magnetosphere. Both have practical as well as astrophysical consequences. The HIIS experiment used eight thick stacks of plastic track detectors mounted in two trays on the space facing end of LDEF. Since the last LDEF symposium, the statistics were increased of the observations and have extended the analysis to a second stack and to detector sheets near the top of a stack. New results are reported on the detector resolution and on the observations of both stopping and relativistic particles.

Adams, James H., Jr.; Beahm, Lorraine P.; Tylka, Allan J.

1992-06-01

383

International capital mobility: evidence from panel data  

Microsoft Academic Search

Krol (Krol, R., 1996. Journal of International Money and Finance 15, 467–474) reports estimates of the saving–investment correlation, based on panel regressions, that are much lower than those commonly found in the literature. This note argues that this low estimate is not related to the panel estimation technique, as Krol claims, but largely to the inclusion of Luxembourg in the

W. Jos Jansen

2000-01-01

384

The Joint Dissemination Review Panel IDEABOOK.  

ERIC Educational Resources Information Center

The Joint Dissemination Review Panel (JDRP) is a joint USOE-NIE panel which reviews the evidence of effectiveness submitted for a variety of educational products and practices developed through federally supported programs. Studies show that school superintendents and other adopters prefer to initiate changes where there is assurance that benefits…

Tallmadge, G. Kasten

385

Limited Dependent Variable Models Using Panel Data  

Microsoft Academic Search

This paper presents a survey of the methods used in the estimation of limited dependent variable models with panel data. It first reviews some issues in the analysis of panel data when the dependent variables are continuous. The problems of fixed effects vs. random effects and serious correlation vs. state dependence are discussed with reference to continuous data. The paper

G. S. Maddala

1987-01-01

386

Automated assembly of fuselage skin panels  

Microsoft Academic Search

Purpose – This paper aims to describe the development and testing of a system for the automated assembly of aircraft fuselage panels. Design\\/methodology\\/approach – The system described in this paper uses a low-cost industrial robot and laser stripe sensor to assemble stringers on to a fuselage panel prior to riveting. The method uses a combination of measurement and best fit

N. Jayaweera; P. Webb

2007-01-01

387

Comparison of sensory panels: a ring trial  

Microsoft Academic Search

The increasing requirement for sensory laboratories to show that the results they provide are repeatable by other laboratories has meant that ways of measuring this are required. One way to achieve this is to undertake ring trials on the same product, using different panels. If the sensory method is used correctly, and the panels are trained, the same conclusions should

Jean A McEwan

1999-01-01

388

GaAs Solar Panel Technology Assessment.  

National Technical Information Service (NTIS)

The current status of a GaAs solar panel flight demonstration experiment that will culminate with the placement of the 28 W solar panel (one of four) on the small cubic United Kingdom microsatellite STRV-1A is presented. This spacecraft will be launched i...

R. L. Crabb C. Flores F. Paletta A. Caon R. Contini

1991-01-01

389

Symmetrical connector for solar panel arrays  

Microsoft Academic Search

The disclosed symmetrical plug and socket connector may be installed in a solar panel array so that the connector is directed towards the adjacent panel for forming an interconnect by the shortest possible route. The connector socket is an elongated, substantially rectangular housing having a groove formed about the entire periphery thereof adjacent one side and an annular bore extending

Bunnell

1981-01-01

390

Purchasing Power Parity Tests In Cointegrated Panels  

Microsoft Academic Search

This paper employs recently developed techniques for testing hypotheses in cointegrated panels to test the strong version of purchasing power parity for a panel of post Bretton Woods data. We compare results using fully modified and dynamic OLS approaches, and strongly reject the hypothesis. We also introduce a new between-dimension dynamic OLS estimator and find that the between-dimension FMOLS and

Peter Pedroni

2001-01-01

391

Orbiter Radiator Panel Solar Focusing Test.  

National Technical Information Service (NTIS)

A test was conducted to determine the solar reflections from the Orbiter radiator panels. A one-tenth scale model of the forward and mid-forward radiator panels in the deployed position was utilized in the test. Test data was obtained to define the reflec...

H. R. Howell

1982-01-01

392

Thermic diode solar panels for space heating  

Microsoft Academic Search

The paper describes the design and operation of thermic diode panels. A single 2 x 8 ft panel contains all the elements of a complete solar energy system: collectors, controls, storage, heat exchangers, and ducting. Heat is transferred from the collector to the storage layer by natural flow of heated water, the flow being controlled by a check valve that

S. Buckley

1978-01-01

393

Uncertainties in Predicting Solar Panel Power Output.  

National Technical Information Service (NTIS)

The problem of calculating solar panel power output at launch and during a space mission is considered. The major sources of uncertainty and error in predicting the post launch electrical performance of the panel are considered. A general discussion of er...

B. Anspaugh

1974-01-01

394

Noise transmission through nonlinear sandwich panels  

Microsoft Academic Search

An analytical study is presented to predict the noise transmission through nonlinear double wall sandwich panel systems subject to random loading. Viscoelastic and nonlinear spring dash-pot models are chosen to characterize the behavior of the core. The noise transmission through this panel system is determined into an acoustic enclosure of which the interiors are covered with porous absorption materials. The

R. Vaicaitis; H.-K. Hong

1983-01-01

395

Mechanical properties of fibrous core sandwich panels  

Microsoft Academic Search

Fibrous core sandwich panels are thin, lightweight structures with face sheets separated by an irregular arrangement of independent fibres; the fibres have a random angle of fibre inclination and a range of initial curvatures. These panels have small thickness so that they can be pressed into 3D curvature in a forming operation. This paper analyses the effects of core morphology

Daowu Zhou; W. J. Stronge

2005-01-01

396

Local buckling of composite corrugated compression panels  

Microsoft Academic Search

This paper investigates the problem of local instability of corrugated panels fabricated from composite materials and subjected to in-plane compressive loading. The panels are considered as a series of linked plate strips with rotationally restrained unloaded edges. At buckling, the moments and slopes at each common edge are related in such a way as to satisfy equilibrium and compatibility conditions.

M. N. Nahas

1993-01-01

397

Integrated Panel of Finnish Companies and Workers  

Microsoft Academic Search

In this paper we describe the compiling of the integrated data which comprises longitudinal information on Finnish companies and workers. The company panel of the data is dynamically representative over time and covers a wide range of the economy. The worker panel covers in principle all people who have been employed in the private sector during the period 1988-96. Worker

Ossi Korkeamäki; Tomi Kyyrä

2000-01-01

398

Design and fabrication of panels with cutouts  

Microsoft Academic Search

A method is presented for determining the shape of a cutout and the surface of a cutout reinforcement element that would guarantee the retention of the undisturbed state of the panel and compatibility of displacements in the panels and those of the reinforcement element. The method makes it possible to reduce the reinforcement mass and to optimize the shape of

V. F. Kut'inov; A. A. Dudchenko; V. A. Kozlov; V. I. Reznichenko

1989-01-01

399

Forming Process Simulation of Truss Core Panel  

NASA Astrophysics Data System (ADS)

Honeycomb panel is widely used as flooring or wall material in various structure including buildings, aircraft, train and so on due to high stiffness and lightness at present. Honeycomb panel, however, has a disadvantage that adhesive used to glue honeycomb core and top plate may burn by fire. On the other hand truss core panel has equivalent stiffness as honeycomb panel and is expected to be an alternative to honeycomb panel as it is safer for fire. However, in general, difficulty exists to form truss core and forming techniques should be developed for practice use of truss core panel. In this paper, firstly theoretical forming limitation is discussed for tetrahedral truss core . Secondly single stage forming simulation of truss core panel using explicit FEM technique was performed for preliminary investigation to estimate formability and thickness distribution. Finally multi-stage forming simulation was presented and possibility to apply press forming for truss core panel production through the simulation. In addition some results of the simulation was compared with the experiment and good agreement of both results was shown.

Tokura, Sunao; Hagiwara, Ichiro

400

Phosphors for flat panel emissive displays  

Microsoft Academic Search

An overview of emissive display technologies is presented. Display types briefly described include: cathode ray tubes (CRT's), field emission displays (FED's), electroluminescent displays (ELD's), and plasma display panels (PDP's). The critical role of phosphors in further development of the latter three flat panel emissive display technologies is outlined. The need for stable, efficient red, green, and blue phosphors for RGB

M. T. Anderson; R. J. Walko; M. L. F. Phillips

1995-01-01

401

Advanced glass substrates for flat panel displays  

Microsoft Academic Search

A current focus of precision flat glass producers is on the development of new glass compositions for use in flat panel displays. This is being done in response to requests from device manufacturers whose products and\\/or processes are making new demands of the substrates. Today, there are numerous glass compositions used in flat panel displays. They range from soda lime

Josef C. Lapp; Peter L. Bocko; John W. Nelson

1994-01-01

402

Clamping Device for Pressurized Module Radiator Panel.  

National Technical Information Service (NTIS)

A clamping system for the pressurized module radiator panels of the Columbus Space Station is described. The main functions of the clamping system are to support flight loads on the radiator, and provide the radiator panel with a quasi-isostatic, high sti...

J. J. Gonzalezvallejo J. Arino L. Gutierrez

1990-01-01

403

Heavy-ion radiotherapy  

NASA Astrophysics Data System (ADS)

Heavy-ion radiotherapy using high-energy carbon beams has been performed at the National Institute of Radiological Sciences, Japan. The physical frame works for heavy-ion radiotherapy are established using physical understandings of radiation physics. In order to increase the accuracy of heavy-ion radiotherapy, many physical problems should be solved. Unsolved problems, such as the depth dose distributions, range of heavy-ion in patients and heavy-ion dosimetry in the radiation therapy, are discussed. .

Kanai, Tatsuaki

2000-11-01

404

Thin film photovoltaic panel and method  

DOEpatents

A thin film photovoltaic panel includes a backcap for protecting the active components of the photovoltaic cells from adverse environmental elements. A spacing between the backcap and a top electrode layer is preferably filled with a desiccant to further reduce water vapor contamination of the environment surrounding the photovoltaic cells. The contamination of the spacing between the backcap and the cells may be further reduced by passing a selected gas through the spacing subsequent to sealing the backcap to the base of the photovoltaic panels, and once purged this spacing may be filled with an inert gas. The techniques of the present invention are preferably applied to thin film photovoltaic panels each formed from a plurality of photovoltaic cells arranged on a vitreous substrate. The stability of photovoltaic conversion efficiency remains relatively high during the life of the photovoltaic panel, and the cost of manufacturing highly efficient panels with such improved stability is significantly reduced.

Ackerman, Bruce (El Paso, TX); Albright, Scot P. (El Paso, TX); Jordan, John F. (El Paso, TX)

1991-06-11

405

Tracking a head-mounted display in a room-sized environment with head-mounted cameras  

Microsoft Academic Search

This paper presents our efforts to accurately track a Head-Mounted Display (HMD) in a largeenvironment. We review our current benchtop prototype (introduced in [WCF90]), then describe our plansfor building the full-scale system. Both systems use an inside-out optical tracking scheme, where lateraleffectphotodiodes mounted on the user's helmet view flashing infrared beacons placed in the environment.Church's method uses the measured 2D

Jih-Fang Wang; Ronald T. Azuma; Gary Bishop; Vernon Chi; John Eyles; Henry Fuchs

1990-01-01

406

Diffractive optics for compact flat panel displays. Final report  

SciTech Connect

Three years ago LLNL developed a practical method to dramatically reduce the chromatic aberration in single element diffractive imaging lenses. High efficiency, achromatic imaging lenses have been fabricated for human vision correction. This LDRD supported research in applying our new methods to develop a unique, diffraction-based optical interface with solid state, microelectronic imaging devices. Advances in microelectronics have led to smaller, more efficient components for optical systems. There have, however, been no equivalent advances in the imaging optics associated with these devices. The goal of this project was to replace the bulky, refractive optics in typical head-mounted displays with micro-thin diffractive optics to directly image flat-panel displays into the eye. To visualize the system think of the lenses of someone`s eyeglasses becoming flat-panel displays. To realize this embodiment, we needed to solve the problems of large chromatic aberrations and low efficiency that are associated with diffraction. We have developed a graceful tradeoff between chromatic aberrations and the diffractive optic thickness. It turns out that by doubling the thickness of a micro-thin diffractive lens we obtain nearly a two-times improvement in chromatic performance. Since the human eye will tolerate one diopter of chromatic aberration, we are able to achieve an achromatic image with a diffractive lens that is only 20 microns thick, versus 3 mm thickness for the comparable refractive lens. Molds for the diffractive lenses are diamond turned with sub-micron accuracy; the final lenses are cast from these molds using various polymers. We thus retain both the micro- thin nature of the diffractive optics and the achromatic image quality of refractive optics. During the first year of funding we successfully extended our earlier technology from 1 cm diameter optics required for vision applications up to the 5 cm diameter optics required for this application. 3 refs., 6 figs.

Sweeney, D.; DeLong, K.

1997-04-29

407

Evolution of the Immunoglobulin Heavy Chain Class Switch Recombination Mechanism  

Microsoft Academic Search

To mount an optimum immune response, mature B lymphocytes can change the class of expressed antibody from IgM to IgG, IgA, or IgE through a recombination\\/deletion process termed immunoglobulin heavy chain (IgH) class switch recombination (CSR). CSR requires the activation?induced cytidine deaminase (AID), which has been shown to employ single?stranded DNA as a substrate in vitro. IgH CSR occurs within

Jayanta Chaudhuri; Uttiya Basu; Ali Zarrin; Catherine Yan; Sonia Franco; Thomas Perlot; Bao Vuong; Jing Wang; Ryan T. Phan; Abhishek Datta; John Manis; Frederick W. Alt

2007-01-01

408

Heavy quark distribution functions in heavy baryons  

Microsoft Academic Search

Using the Bethe-Salpeter (BS) equations for heavy baryons LambdaQ, SigmaQ, XiQ and OmegaQ (Q=b or c), which were established in previous work, we calculate the heavy quark distribution functions in these baryons. The numerical results indicate that these distribution functions have an obvious peak at some fraction alpha0 of the baryon's light-cone ``plus'' momentum component carried by the heavy quark,

X.-H. Guo; A. W. Thomas; A. G. Williams

2001-01-01

409

75 FR 68403 - Open meeting of the Taxpayer Advocacy Panel  

Federal Register 2010, 2011, 2012, 2013

...Revenue Service Open meeting of the Taxpayer Advocacy Panel AGENCY: Internal Revenue Service...SUMMARY: An open meeting of the Taxpayer Advocacy Panel will be conducted. The Taxpayer Advocacy Panel is soliciting public comment,...

2010-11-05

410

76 FR 69799 - Open meeting of the Taxpayer Advocacy Panel  

Federal Register 2010, 2011, 2012, 2013

...Revenue Service Open meeting of the Taxpayer Advocacy Panel AGENCY: Internal Revenue Service...SUMMARY: An open meeting of the Taxpayer Advocacy Panel will be conducted. The Taxpayer Advocacy Panel is soliciting public comments,...

2011-11-09

411

75 FR 6407 - Aerospace Safety Advisory Panel; Meeting  

Federal Register 2010, 2011, 2012, 2013

...ADMINISTRATION [Notice (10- 020)] Aerospace Safety Advisory Panel; Meeting AGENCY...announce a forthcoming meeting of the Aerospace Safety Advisory Panel. DATES: Wednesday...INFORMATION CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel Executive...

2010-02-09

412

76 FR 2923 - Aerospace Safety Advisory Panel; Meeting  

Federal Register 2010, 2011, 2012, 2013

...ADMINISTRATION [Notice (11-004)] Aerospace Safety Advisory Panel; Meeting AGENCY...announce a forthcoming meeting of the Aerospace Safety Advisory Panel. DATES: Friday...INFORMATION CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel Executive...

2011-01-18

413

78 FR 57903 - Aerospace Safety Advisory Panel; Charter Renewal  

Federal Register 2010, 2011, 2012, 2013

...ADMINISTRATION [Notice: 13-116] Aerospace Safety Advisory Panel; Charter Renewal...renewal and amendment of the charter of the Aerospace Safety Advisory Panel...renewal and amendment of the charter of the Aerospace Safety Advisory Panel is in the...

2013-09-20

414

76 FR 65750 - Aerospace Safety Advisory Panel; Charter Renewal  

Federal Register 2010, 2011, 2012, 2013

...ADMINISTRATION [Notice (11-105)] Aerospace Safety Advisory Panel; Charter Renewal...amendment of the charter of the NASA Aerospace Safety Advisory Panel...amendment of the charter of the NASA Aerospace Safety Advisory Panel is in the...

2011-10-24

415

Thermal resistance of superinsulation/foam composite panels.  

National Technical Information Service (NTIS)

Laboratory data are presented on the thermal resistance of composite panels that incorporate superinsulation embedded in urethane foam. Composite panels were fabricated using four types of advanced insulations (three types of evacuated panel superinsulati...

K. E. Wilkes R. S. Graves K. W. Childs

1996-01-01

416

Fiber optic/cone penetrometer system For subsurface heavy metals detection  

SciTech Connect

Contamination of the soil by heavy metals (Pb, Cr, Cu, Zn, Cd) is of great concern for government and industry; characterization, monitoring, and remediation is expensive and time consuming. Objective of this project is to develop an integrated fiber optic sensor/cone penetrometer system to analyze the heavy metals content of the subsurface. Laser-induced breakdown spectroscopy is used in the system. Work is being done on developing a truck mounted system.

Saggese, S.; Bratton, W.; Fisk, B.

1996-12-31

417

Panel discussion on energy efficiency.  

PubMed

The session on energy efficiency had no formal presentations and was organized as a panel discussion with four panelists. It was concluded that energy efficiency and saving measures on the short term is the most effective way to contribute to a sustainable energy system. Measures to improve and encourage energy efficiency should be implemented at all levels; municipal/local, national and super-national. Prices can be an effective instrument but need to be combined with systemic level measures. The transport sector was identified as the one with largest near future potential for increased energy efficiency. Agriculture and food is also an area with very large energy consumption and large potential for increased energy efficiency. The global population issue is yet another relevant, challenging and complex issue. It was noted that energy audits for end users in business and society increase awareness and insights into what they pay for, and they are likely to promote actions to save energy. Many measures are believed to suffer from Jevin's paradox, i.e., that more efficient use of energy just leads to more energy consumption somewhere else. Many examples were given, however, where this does not happen. Another point put forward was that measures to make the energy system more efficient do not only mean constraints and regulations but also create great opportunities for market actors and societies. PMID:20873682

Heap, Brian; Kasemo, Bengt

2010-01-01

418

Semi-kinematic mount of the FIREBALL large optics  

NASA Astrophysics Data System (ADS)

In the context of the NASA CNES FIREBALL balloon borne experiment, we present the design of a semi-kinematic mount to hold the 1 meter class mirrors of this mission. To maintain these large optics in a reasonable mass and price budgets we choose thin ULE mirrors with a thickness over diameter ratio of 1/16. Such thin mirrors require a multi support mount to reduce self weight deflection. Classical multi support mount used for ground based telescope would not survive the level of shock observed in a balloon experiment either at parachute opening or landing. To firmly maintain these mirrors in several points without noticeably deforming them we investigated the design of a two stages semi-kinematic mount composed of 24 monopods. We present the detailed design of this innovative mirror mount, the finite element modeling with the deduced optical wavefront deformation. During the FIREBALL integration and flight campaign in July 2007 at CSBF, we confirmed the validity of the mechanical concept by obtaining an image quality well within the required specifications. Variants of this approach are potentially applicable to large thin mirrors on ground-based observatories.

Rossin, C.; Grange, R.; Milliard, B.; Martin, L.; Moreaux, G.; Blanchard, P.; Deharveng, J.-M.; Evrard, J.; Martin, C.; McLean, R.; Schiminovich, D.

2008-07-01

419

Structural Analysis of Sandwich Foam Panels  

SciTech Connect

The Sandwich Panel Technologies including Structural Insulated Panels (SIPs) can be used to replace the conventional wooden-frame construction method. The main purpose of this Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and SGI Venture, Inc. was to design a novel high R-value type of metal sandwich panelized technology. This CRADA project report presents design concept discussion and numerical analysis results from thermal performance study of this new building envelope system. The main objective of this work was to develop a basic concept of a new generation of wall panel technologies which will have R-value over R-20 will use thermal mass to improve energy performance in cooling dominated climates and will be 100% termite resistant. The main advantages of using sandwich panels are as follows: (1) better energy saving structural panels with high and uniform overall wall R-value across the elevation that could not be achieved in traditional walls; and (2) reducing the use of raw materials or need for virgin lumber. For better utilization of these Sandwich panels, engineers need to have a thorough understanding of the actual performance of the panels and system. Detailed analysis and study on the capacities and deformation of individual panels and its assembly have to be performed to achieve that goal. The major project activity was to conduct structural analysis of the stresses, strains, load capacities, and deformations of individual sandwich components under various load cases. The analysis simulated the actual loading conditions of the regular residential building and used actual material properties of the steel facings and foam.

Kosny, Jan [ORNL; Huo, X. Sharon [Tennessee Technological University

2010-04-01

420

Panel resonant behavior of wind turbine blades.  

SciTech Connect

The principal design drivers in the certification of wind turbine blades are ultimate strength, fatigue resistance, adequate tip-tower clearance, and buckling resistance. Buckling resistance is typically strongly correlated to both ultimate strength and fatigue resistance. A composite shell with spar caps forms the airfoil shape of a blade and reinforcing shear webs are placed inside the blade to stiffen the blade in the flap-wise direction. The spar caps are dimensioned and the shear webs are placed so as to add stiffness to unsupported panel regions and reduce their length. The panels are not the major flap-wise load carrying element of a blade; however, they must be designed carefully to avoid buckling while minimizing blade weight. Typically, buckling resistance is evaluated by consideration of the load-deflection behavior of a blade using finite element analysis (FEA) or full-scale static testing of blades under a simulated extreme loading condition. The focus of this paper is on the use of experimental modal analysis to measure localized resonances of the blade panels. It can be shown that the resonant behavior of these panels can also provide a means to evaluate buckling resistance by means of analytical or experimental modal analysis. Further, panel resonances have use in structural health monitoring by observing changes in modal parameters associated with panel resonances, and use in improving panel laminate model parameters by correlation with test data. In recent modal testing of wind turbine blades, a set of panel modes were measured. This paper will report on the findings of these tests and accompanying numerical and analytical modeling efforts aimed at investigating the potential uses of panel resonances for blade evaluation, health monitoring, and design.

Paquette, Joshua A.; Griffith, Daniel Todd

2010-03-01

421

78 FR 53429 - Response Systems to Adult Sexual Assault Crimes Panel (Response Systems Panel); Notice of Federal...  

Federal Register 2010, 2011, 2012, 2013

...Response Systems to Adult Sexual Assault Crimes Panel (Response Systems Panel); Notice...Response Systems to Adult Sexual Assault Crimes Panel (hereafter referred to as ``the...investigate, prosecute, and adjudicate crimes involving adult sexual assault and...

2013-08-29

422

Flat or curved thin optical display panel  

DOEpatents

An optical panel includes a plurality of waveguides stacked together, with each waveguide having a first end and an opposite second end. The first ends collectively define a first face, and the second ends collectively define a second face of the panel. The second face is disposed at an acute face angle relative to the waveguides to provide a panel which is relatively thin compared to the height of the second face. In an exemplary embodiment for use in a projection TV, the first face is substantially smaller in height than the second face and receives a TV image, with the second face defining a screen for viewing the image enlarged. 7 figures.

Veligdan, J.T.

1995-01-10

423

Ultrafast thermal cycling of solar panels  

SciTech Connect

Two new cyclers that utilize a novel hybrid approach to perform fast thermal cycling of solar panels have been built and are now operational in the Mechanics and Materials Technology Center at The Aerospace Corporation. These cyclers are part of a continuing effort to minimize solar cell life test durations by accelerating the cycling rates. These fully automated cyclers, which provide continuous unmanned cycling in a gaseous nitrogen atmosphere, can execute 5 min cycles, thus yielding in excess of 100,000 cycles per year. They also have a unique capability of verifying solar panel functionality without interruption of cycling, so that cycling doesn`t continue on nonfunctioning panels.

Wall, T.S.; Valenzuela, P.R.; Sue, C.

1998-08-15

424

Sonic resonance in a sandwiched electrorheological panel  

NASA Astrophysics Data System (ADS)

We have studied the sound transmission properties of a flexible sandwiched electrorheological (ER) panel. It shows that, at a frequency range of 80-150 Hz, the sound pressure level spectrum exhibits a resonant peak. The resonant peak makes a shift to high frequency and the phase of the transmitted wave changes with an increase of the applied electric field. A vibration-radiation model is set up to simulate the sound radiating process and verifies a resonant effect in the ER panel in qualitative agreement with experiments. The tunable resonance effect in the ER panel would be useful in constructing tunable phononic crystals and other acoustic devices.

Tang, Hong; Luo, Chunrong; Zhao, Xiaopeng

2005-07-01

425

2011 Meeting Materials of the Immunology Devices Panel  

Center for Biologics Evaluation and Research (CBER)

... Medical Devices. Medical Devices Advisory Committee. Immunology Devices Panel. ... 2011 Meeting Materials of the Immunology Devices Panel. -. -. ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

426

Concentrating Solar Panels: Bringing the Highest Power and Lowest Cost to the Rooftop  

SciTech Connect

Soliant Energy is a venture-capital-backed startup focused on bringing advanced concentrating solar panels to market. Our fundamental innovation is that we are the first company to develop a racking solar concentrator specifically for commercial rooftop applications, resulting in the lowest LCOE for rooftop electricity generation. Today, the commercial rooftop segment is the largest and fastest-growing market in the solar industry. Our concentrating panels can make a major contribution to the SAI's objectives: reducing the cost of solar electricity and rapidly deploying capacity. Our commercialization focus was re-shaped in 2009, shifting from an emphasis solely on panel efficiency to LCOE. Since the inception of the SAI program, LCOE has become the de facto standard for comparing commercial photovoltaic systems. While estimation and prediction models still differ, the emergence of performance-based incentive (PBI) and feed-in tariff (FIT) systems, as well as power purchase agreement (PPA) financing structures make LCOE the natural metric for photovoltaic systems. Soliant Energy has designed and demonstrated lower-cost, higher-power solar panels that consists of 6 (500X) PV module assemblies utilizing multi-junction cells and an integrated two-axis tracker. In addition, we have designed and demonstrated a prototype 1000X panel assembly with 8. Cost reductions relative to conventional flat panel PV systems were realized by (1) reducing the amount of costly semiconductor material and (2) developing strategies and processes to reduce the manufacturing costs of the entire system. Performance gains against conventional benchmarks were realized with (1) two-axis tracking and (2) higher-efficiency multi-junction PV cells capable of operating at a solar concentration ratio of 1000X (1000 kW/m2). The program objectives are: (1) Develop a tracking/concentrating solar module that has the same geometric form factor as a conventional flat, roof mounted photovoltaic (PV) panel - the Soliant module will produce more power and cost less than conventional panels of the same size; (2) Target LCOE: $0.079/kWh in 2010; (3) Target efficiency - 26% in 2010 (22% for 2008 prototype, 24% for 2009 pilot); and (4) Target performance - equivalent to 650Wp in 2010 (490W for 2008 prototype, 540W for 2009 pilot).

Michael Deck; Rick Russell

2010-01-05

427

Piezoelectric resonator assembly with thin molybdenum mounting clips  

DOEpatents

A resonator mounting assembly wherein the resonator blank is mounted agai an essentially planar surface presented by a plurality of peripherally disposed mounting clips and bonded to this surface to provide substantially all the mechanical support for the blank in a direction normal to the major faces of the resonator blank, while being flexible in the directions parallel to said major faces so as to minimize radial stresses on the resonator blank, particularly during thermal cycling of the resonator assembly. The clips are fabricated of a low thermal expansion material, such as molybdenum, which also has considerable yield strength after exposure to processing temperatures; the bonding of the clips to the edges of the resonator blank can be achieved by a polyimide containing electrically conductive particles.

Peters, R. Donald (Pinellas Park, FL)

1981-01-01

428

Opto-mechanical analysis of mirror mounting mechanism  

NASA Astrophysics Data System (ADS)

This paper is investigated to construct the self-developed fundamental capability which can apply to the opto-mechanical design and analysis in space telescope. The mounting mechanics is found to be a key issue to dramatically affect the optical performance in optical systems. Design and experiments are conducted to study the relationship between stresses and wavefront errors of the opto-mechanical systems by use of the interferometric measurement. Zernike polynomials and wavefront fitting is performed to study the mirror mounting mechanism. It is reported that mirror mounting stresses will severely affect the wavefront errors of the optical systems. Moreover, this investigation indicates that the external stresses will increase the wavefront errors, especially in the terms of astigmatism and trefoil. In addition, the transverse shear stress is more sensitive to degrade the optical performance in this opto-mechanical system design.

Chen, Ching-Wei; Yang, Mei-Yi; Huang, Po-Hsuan; Ho, Cheng-En; Chen, Chia-Ray

2013-09-01

429

Frequency response calibration of recess-mounted pressure transducers  

NASA Astrophysics Data System (ADS)

A technique is described for measuring the frequency response of pressure transducers mounted inside a model, where a narrow pipette leads to an orifice at the surface. An acoustic driver is mounted to a small chamber which has an opening at the opposite end with an O-ring seal to place over the orifice. A 3.18 mm (1/8 inch) reference microphone is mounted to one side of the chamber. The acoustic driver receives an input of white noise, and the transducer and reference microphone outputs are compared to obtain the frequency response of the pressure transducer. Selected results are presented in the form of power spectra for both the transducer and the reference, as well as the amplitude variation and phase shift between the two signals as a function of frequency. The effect of pipette length and the use of this technique for identifying both blocked orifices and faulty transducers are described.

Marcolini, M. A.; Lorber, P. F.; Miller, W. T., Jr.; Covino, A. F., Jr.

1991-03-01

430

Infrared optical element mounting techniques for wide temperature ranges  

SciTech Connect

We describe the optimization of a mounting system for the infrared (IR) optics of a spaceborne interferometer working in the temperature range between -120 deg. C and +150 deg. C. The concept is based on an aluminum alloy frame with designed mechanical compliance, which allows for compensation of the different coefficient of thermal expansion between the optics and the holder; at the same time, the system provides for the high stiffness required to reach natural frequencies above 200 Hz, which are mandatory in most space missions. Thermal adapters with properly chosen thermomechanical characteristics are interposed between the metallic structure and the lens, so as to reduce the interface stresses on the mechanically weak IR material, due to both the thermoelastic and acceleration loads. With the proposed mount, the competitive requirements of stiffness and stress-free mounting can be matched in wide temperature ranges. The case study of the interferometer of a miniaturized Fourier transform IR spectrometer is presented.

Saggin, Bortolino; Tarabini, Marco; Scaccabarozzi, Diego

2010-01-20

431

Mount Gambier (38°S, 141°E) prototype VHF wind profiler  

NASA Astrophysics Data System (ADS)

The Mount Gambier wind profiling radar was installed in September 1997 and has operated almost continuously since the beginning of 1998. The site is at the Australian Commonwealth Bureau of Meteorology Mount Gambier Meteorological Office, close to the Mount Gambier airport. The radar was developed as a prototype operational profiler by the Atmospheric Physics Group at the University of Adelaide, in collaboration with the Australian Commonwealth Bureau of Meteorology. It was designed to operate as a spaced antenna radar, as a Doppler beam swinging radar, and as a hybrid Doppler interferometer. Here we present a summary of the operation of the system and a comparison with radiosonde observations concentrating on operation in the spaced antenna mode. The utility of the system and recommendations for the further development of similar systems are addressed.

Reid, I. M.; Holdsworth, D. A.; Kovalam, S.; Vincent, R. A.; Stickland, J.

2005-10-01

432

Ball-mounting fixture for a roundness gage  

DOEpatents

A ball mounting fixture for a roundness gage is disclosed. The fixture includes a pair of chuck assemblies oriented substantially transversely with respect to one another and mounted on a common base. Each chuck assembly preferably includes a rotary stage and a wobble plate affixed thereto. A ball chuck affixed to each wobble plate is operable to selectively support a ball to be measured for roundness, with the wobble plate permitting the ball chuck to be tilted to center the ball on the axis of rotation of the rotary stage. In a preferred embodiment, each chuck assembly includes a vacuum chuck operable to selectively support the ball to be measured for roundness. The mounting fixture enables a series of roundness measurements to be taken with a conventional rotating gagehead roundness instrument, which measurements can be utilized to determine the sphericity of the ball.

Gauler, A.L.; Pasieka, D.F.

1982-02-16

433

Preliminary Design of Tracking Mount for Movable SLR  

NASA Astrophysics Data System (ADS)

In this paper, we present the result of preliminary design of tracking mount for ARGO-M which is a movable satellite laser ranging (SLR) system developed by Korea Astronomy and Space Science Institute (KASI). The tracking mount consists of a couple of core parts such as driving motors, encoders and bearings, and the requirements of each parts are determined on the basis of the technical consideration. 2D and 3D models for tracking mount were preliminarily designed using the selected core parts. In order to evaluate the validity of the preliminarily design, the simulator to test the elevation axis was designed and manufactured. The test to check the tracking performance and system accuracy of the simulator was performed, and it was confirmed that the preliminary design meets the operating specifications. Additionally, it was found that the repetitive errors and hysteresis errors need to be improved by the additional control algorithm.

Park, Cheol Hoon; Son, Young Su; Kim, Byung In

2010-06-01

434

Cleaning of printed circuit assemblies with surface-mounted components  

SciTech Connect

The need for ever-increasing miniaturization of airborne instrumentation through the use of surface mounted components closely placed on printed circuit boards highlights problems with traditional board cleaning methods. The reliability of assemblies which have been cleaned with vapor degreasing and spray cleaning can be seriously compromised by residual contaminants leading to solder joint failure, board corrosion, and even electrical failure of the mounted parts. In addition, recent government actions to eliminate fully halogenated chlorofluorocarbons (CFC) and chlorinated hydrocarbons from the industrial environment require the development of new cleaning materials and techniques. This paper will discuss alternative cleaning materials and techniques and results that can be expected with them. Particular emphasis will be placed on problems related to surface-mounted parts. These new techniques may lead to improved circuit reliability and, at the same time, be less expensive and less environmentally hazardous than the traditional systems. 5 refs.

Arzigian, J.S. (Sandia National Labs., Albuquerque, NM (USA))

1989-01-01

435

Note: Pneumatically actuated and kinematically positioned optical mounts compatible with laser-cooling experiments  

NASA Astrophysics Data System (ADS)

We present two complementary designs of pneumatically actuated and kinematically positioned optics mounts: one designed for vertical mounting and translation, the other designed for horizontal mounting and translation. The design and measured stability make these mounts well-suited to experiments with laser-cooled atoms.

Brown, Roger C.; Olmschenk, S.; Wu, Saijun; Dyckovsky, A. M.; Wyllie, R.; Porto, J. V.

2013-09-01

436

Graphite/Epoxy Heat Sink/Mounting for Common Pressure Vessel.  

National Technical Information Service (NTIS)

The graphite-epoxy heat sink and mounting structure is comprised of a mounting structure constructed of a graphite-epoxy material that is mounted around a heat generating pressure vessel located inside a spacecraft. The mounting structure is a graphite-ep...

W. R. Braun J. C. Garner S. M. Turner N. L. Hyman

1995-01-01

437

Methodology for the Determination of Criticality Codes and Recertification Intervals for Tank Mounted Air Compressors (TMAC) and Base Mounted Air Compressors (BMAC).  

National Technical Information Service (NTIS)

This methodology is used to determine inspection procedures and intervals for components contained within tank mounted air compressor systems (TMAC) and base mounted air compressor systems (BMAC). These systems are included in the Pressure Vessel and Syst...

W. T. Hargrove

1991-01-01

438

Long term measurement of lake evaporation using a pontoon mounted Eddy Covariance system  

NASA Astrophysics Data System (ADS)

Accurate quantification of evaporation from water storages is essential for design of water management and allocation policy that aims to balance demands for water without compromising the sustainability of future water resources, particularly during periods of prolonged and severe drought. Precise measurement of evaporation from lakes and dams however, presents significant research challenges. These include design and installation of measurement platforms that can withstand a range of wind and wave conditions; accurate determination of the evaporation measurement footprint and the influence of changing water levels. In this paper we present results from a two year long deployment of a pontoon mounted Eddy Covariance (EC) system on a 17.2ha irrigation reservoir in southeast Queensland, Australia. The EC unit included a CSAT-3 sonic anemometer (Campbell Scientific, Utah, United States) and a Li-Cor CS7500 open-path H2O/CO2 infrared gas analyzer (LiCor, Nebraska, United States) at a height of 2.2m, a net radiometer (CNR1, Kipp & Zonen, Netherlands) at a height of 1.2m and a humidity and temperature probe (HMP45C,Vaisala, Finland) at 2.3m. The EC unit was controlled by a Campbell Scientific CR3000 data logger with flux measurements made at 10 Hz and block averaged values logged every 15 minutes. Power to the EC system was from mounted solar panels that charged deep cycle lead-acid batteries while communication was via a cellphone data link. The pontoon was fitted with a weighted central beam and gimbal ring system that allowed self-levelling of the instrumentation and minimized dynamic influences on measurements (McGowan et al 2010; Wiebe et al 2011). EC measurements were corrected for tilt errors using the double rotation method for coordinate rotation described by Wilczak et al. (2001). High and low frequency attenuation of the measured co-spectrum was corrected using Massman's (2000) method for estimating frequency response corrections, while measurements were corrected for density fluctuations using the method of Webb-Pearman-Leuning (Webb et al. 1980). The evaporation measurement footprint over the reservoir was determined using the SCADIS one and a half order turbulence closure footprint model (Sogachev and Lloyd, 2004). Comparison of EC measured evaporation rates show excellent agreement with independent measurement of evaporation by scintillometer under a wide range of conditions (McJannet et al 2011). They confirm that pontoon mounted EC systems offer a robust, highly portable and reliable cost effective approach for accurate quantification of evaporation from reservoirs.

McGowan, H. A.; McGloin, R.; McJannet, D.; Burn, S.

2011-12-01

439

Cuff of wrist-mount blood pressure monitor  

US Patent & Trademark Office Database

A cuff of a wrist-mount blood pressure monitor capable of oppressing an artery of the wrist securely without having effects of muscle, tendon or bone existing in the wrist area is presented. This cuff 10 of a wrist-mount blood pressure monitor comprises a first air bag 14A as a first inflatable portion, and a second air bag 16A as a second inflatable region disposed between the first inflatable portion 14A and the wrist, being made of a material of a higher stretchability than the material for the first air bag 14A.

Yamakoshi; Ken-ichi (Kanazawa, JP); Oku; Shojiro (Kyoto, JP); Tanaka; Takahide (Kyoto, JP); Sano; Yoshihiko (Kyoto, JP); Kato; Hiroyuki (Kyoto, JP)

2004-02-24

440

Thermo-opto-mechanical analysis of a cubesat lens mount  

NASA Astrophysics Data System (ADS)

A potential cubesat payload for low resolution study of planet Earth from space is an optical imaging system. Due to budget, space, and time constraints, commercial photographic lenses of the double Gauss type are prime candidates for limited duration cubesat optics. However, photographic objectives are not designed to operate in a space environment and modifications are usually necessary. One method of improving optical performance of the objective over large temperature variations is by replacing the stock lens mount with a different material. This paper describes the thermo-opto- mechanical analysis of several lens mount materials for a double Gauss imaging system suitable for a cubesat.

Champagne, James A.; Burge, James H.; Crowther, Blake G.

2011-09-01

441

Mount St. Helens Before, During, and After (WMS)  

NSDL National Science Digital Library

Mount St. Helens erupted on May 18, 1980, devastating more than 150 square miles of forest in southwestern Washington state. This animation shows Landsat images of the Mount St. Helens area in 1973, 1983, and 2000, illustrating the destruction and regrowth of the forest. The 1983 image clearly shows the new crater on the northern slope where the eruption occurred, the rivers and lakes covered with ash, and the regions of deforestation. The 2000 image, taken twenty years after the eruption, still shows the changed crater, but much of the devastated area is covered by new vegetation growth.

Snodgrass, Stuart; Mitchell, Horace; Newcombe, Marte; Williams, Darrel

2005-03-02

442

Perspective view. notes on reverse: The main facade of Mount ...  

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

Perspective view. notes on reverse: The main facade of Mount Atlas was built by Peter B. Whiting in 1790. All exterior woodwork except the cornice is said to be carved by Mr. Foley. Some original frames and casings around transom window over front door. Front door is also original. Some original beaded weatherboards on wall protected by basement entrance (poplar weatherboards). Porch added after 1900. Original mantelpiece with painting of girl above (may be a late eighteenth-century painting). Smokehouse to left is original. Charles B. Carter owned the house from 1801-35 and is buried in the cemetery nearby. - Mount Atlas, State Route 731 vicinity, Waterfall, Prince William County, VA

443

Partial binocular-overlap in helmet-mounted displays  

NASA Astrophysics Data System (ADS)

Consideration is given to the possible use of a partial binocular overlap configuration to decrease the size and weight of a helmet mounted display while maintaining a wide FOV and adequate image resolution. It is suggested that a partial binocular overlap helmet mounted display would allow the user to see a central binocular image flanked by two monocular images. Under proper conditions, the user would not be aware of the partial overlap, but would benefit from reduced weight, decreased size, and extended FOV. Visual considerations are discussed, including binocular rivalry, distortion and binocular disparity, derotation, and the amount of overlap required.

Melzer, James E.; Moffitt, Kirk

1989-03-01

444

Development and characterization for the automated surface mount assembly  

SciTech Connect

Development of the ability to automatically assemble surface mount devices on circuits is described, including the characterization of the assembly process and improvements made to the system to increase the accuracy and repeatability of this process. The accuracy and repeatability of the system were characterized by measurements of the individual system components as well as the actual placement of components on a specially designed gauge. The forces and stresses experienced by the components when handled by the system were analyzed. The ability to deliver surface mount components to the system was developed by the design and development of stick magazines, vibratory feeders, a feeder control system, and an automatic stick magazine loader.

Yerganian, S.S.; Grice, J.V.

1996-11-01

445

Multifrequency Imaging Microwave Radiometer: Instrument Panel Report.  

National Technical Information Service (NTIS)

A survey is given of the multifrequency imaging microwave radiometer based on the work and advice of the instrument panel group, and the results of the industrial activities performed within the framework of the Earth Observation Preparatory Programme (EO...

R. Bernard M. Hallikainen Y. Kerr K. Kuenzi C. Maetzler

1990-01-01

446

Neurological Devices Panel – March 31, 2000  

Center for Biologics Evaluation and Research (CBER)

... The Panel was aware of the state of the art on deep brain stimulation, both the published literature and ongoing studies, and expressed their belief ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

447

Anesthesiology and Respiratory Therapy Devices Panel  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Anesthesiology and Respiratory Therapy Devices Panel May 28, 2009 Meeting Roster CHAIR EXECUTIVE SECRETARY ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

448

High Efficiency Flat Panel Microchannel Heat Exchanger.  

National Technical Information Service (NTIS)

An apparatus providing high efficiency heat exchange between two fluids is disclosed. The apparatus most commonly comprises a flat panel with microchannels directing the flow of the two fluids, specifically: with a small hydraulic diameter in order to inc...

K. W. Kelly A. McCandless

2005-01-01

449

Solar Technology: Flat Panel Solar Collectors  

NSDL National Science Digital Library

This brief flash animation gives information on the materials included in a flat panel solar collector as well as the reasons/benefits behind using certain materials. Note that it can be slow to load the first time opening it.

2011-01-03

450

Slewing Control Experiment for a Flexible Panel.  

National Technical Information Service (NTIS)

Technology areas are identified in which better analytical and/or experimental methods are needed to adequately and accurately control the dynamic responses of multibody space platforms such as the space station. A generic space station solar panel is use...

J. Juang

1987-01-01

451

Matrix Display Panel in Gasdischarge Technique.  

National Technical Information Service (NTIS)

The aim of this work was the investigation and development of the components of slim gasdischarge display panels in 'stacked-tube' technique, especially suited for the presentation of colour pictures. This work mainly considered the technology of pulsed m...

M. Schiekel H. Suessenbach W. Schwedes H. Keiner G. Peppel

1982-01-01

452

Panel Data Analysis of Cardiotocograph (CTG) Data.  

PubMed

Panel data analysis is a statistical method, widely used in econometrics, which deals with two-dimensional panel data collected over time and over individuals. Cardiotocograph (CTG) which monitors fetal heart rate (FHR) using Doppler ultrasound and uterine contraction by strain gage is commonly used in intrapartum treatment of pregnant women. Although the relationship between FHR waveform pattern and the outcome such as umbilical blood gas data at delivery has long been analyzed, there exists no accumulated FHR patterns from large number of cases. As time-series economic fluctuations in econometrics such as consumption trend has been studied using panel data which consists of time-series and cross-sectional data, we tried to apply this method to CTG data. The panel data composed of a symbolized segment of FHR pattern can be easily handled, and a perinatologist can get the whole FHR pattern view from the microscopic level of time-series FHR data. PMID:23920815

Horio, Hiroyuki; Kikuchi, Hitomi; Ikeda, Tomoaki

2013-01-01

453

Development of a Vacuum Superinsulation Panel.  

National Technical Information Service (NTIS)

After completion of the investigations the vacuum-insulated panel is available as prototype. The aim of the investigations was to optimize and to finalize the vacuum superinsulation system with regard to a pressure-resistant, temperature-resistant thermal...

H. Timm D. Seefeldt C. Nitze

1983-01-01

454

Fabric panel clean change-out frame  

SciTech Connect

A fabric panel clean change-out frame, for use on a containment structure having rigid walls, is formed of a compression frame and a closure panel. The frame is formed of elongated spacers, each carrying a plurality of closely spaced flat springs, and each having a hooked lip extending on the side of the spring facing the spacer. The closure panel is includes a perimeter frame formed of flexible, wedge-shaped frame members that are receivable under the springs to deflect the hooked lips. A groove on the flexible frame members engages the hooked lips and locks the frame members in place under the springs. A flexible fabric panel is connected to the flexible frame members and closes its center.

Brown, Ronald M. (1757 Dorset Ave., Pocatello, ID 83201)

1995-01-31

455

Sound from Turbulent Boundary Layer Excited Panels.  

National Technical Information Service (NTIS)

The acoustic power radiated by thin flexible panels excited by turbulent boundary layer pressure fluctuations is estimated using a modal analysis, light fluid loading effects being included. Previous estimates of the modal radiation coefficients are impro...

H. G. Davies

1969-01-01

456

Obstetrics and Gynecology Devices Panel Meeting Summary ...  

Center for Biologics Evaluation and Research (CBER)

... session, FDA and NIH briefed the panel about post-market studies and adverse events related to the OxiFirst™ Fetal Oxygen Saturation Monitoring ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

457

Microbiology Devices Panel Medical Devices Advisory ...  

Center for Biologics Evaluation and Research (CBER)

Text Version... Microbiology Devices Panel Medical Devices Advisory Committee Proposal for the reclassification of rapid influenza detection devices Page 2. ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

458

Gross Panel Strength Under Combined Loading.  

National Technical Information Service (NTIS)

The existing methods of predicting the behavior and ultimate strength of ship gross panels were evaluated, examined and in some instances, further developed. The assumptions, approximations, and deficiencies in each method were identified with the objecti...

A. E. Mansour

1977-01-01

459

March 27, 2009: Ophthalmic Devices Panel Meeting ...  

Center for Biologics Evaluation and Research (CBER)

... Name of Committee, Ophthalmic Devices Panel. Date and Time, The meeting was held on the following dates: Mar 27, 09 8:00 AM - 5:00 PM. ... More results from www.fda.gov/advisorycommittees/calendar

460

Medical Devices Dispute Resolution Panel Meeting Summary ...  

Center for Biologics Evaluation and Research (CBER)

... The Panel voted 4 to 0 in favor of a recommendation to approve the PMA. Contact: Les Weinstein, Executive Secretary; 301-443-6220 x119. ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

461

NEUROLOGICAL DEVICES PANEL OF THE MEDICAL ...  

Center for Biologics Evaluation and Research (CBER)

Text Version... PANEL OF THE MEDICAL DEVICES ADVISORY COMMITTEE TO ... Foundation for Medical Care Denver ... and Associates Consulting Roseville, MN ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

462

JTEC Panel on Display Technologies in Japan.  

National Technical Information Service (NTIS)

This report is one in a series of reports that describes research and development efforts in Japan in the area of display technologies. The following are included in this report: flat panel displays (technical findings, liquid crystal display development ...

A. H. Firester J. W. Doane L. E. Tannas T. Credelle W. E. Glenn

1992-01-01

463

76 FR 32957 - Hydrographic Services Review Panel  

Federal Register 2010, 2011, 2012, 2013

...navigation data, products and services; coastal management; fisheries management; coastal and marine spatial planning; geodesy; water levels; and other science-related fields to apply for Panel membership. To apply for membership on the...

2011-06-07

464

75 FR 20809 - Hydrographic Services Review Panel  

Federal Register 2010, 2011, 2012, 2013

...navigation data, products and services; coastal management; fisheries management; coastal and marine spatial planning; geodesy; water levels; and other science-related fields to submit applications for Panel membership. To apply for membership...

2010-04-21

465

77 FR 76001 - Hydrographic Services Review Panel  

Federal Register 2010, 2011, 2012, 2013

...navigation data, products and services; coastal management; fisheries management; coastal and marine spatial planning; geodesy; water levels; and other science-related fields to apply for Panel membership. To apply for membership on the...

2012-12-26

466

76 FR 77559 - Meeting of Humanities Panel  

Federal Register 2010, 2011, 2012, 2013

...National Endowment for the Humanities, Washington, DC 20506...INFORMATION: The purpose of this Humanities Panel meeting is to advise...specifically the creation of content on the topic...EDSITEment is an on-line educational...

2011-12-13

467

Dental Products Panel Meeting - August 22, 2002  

Center for Biologics Evaluation and Research (CBER)

... A meeting of the Dental Products Panel was held on August 22, 2002. ... these devices should be required to receive didactic and hands-on training ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

468

DC-Electroluminescent Flat Panel Display.  

National Technical Information Service (NTIS)

The objective of this project was to develop an efficient electroluminescent configuration using II-VI materials, appropriate for construction of an inexpensive, flat panel display. The materials system was to be developed as far as possible within the re...

J. J. Hanak P. N. Yocom

1973-01-01

469

Anesthesiology and Respiratory Therapy Devices Panel ...  

Center for Biologics Evaluation and Research (CBER)

... A meeting of the Anesthesiology and Respiratory Therapy Devices Panel was held on December 5, 2008. ... Zephyr Endobronchial Valve System. ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/medicaldevices

470

NCI DEA - President's Cancer Panel Meetings  

Cancer.gov

National Institutes of Health, National Cancer Institute, Division of Extramural Activities - Home Page Skip to Main Content Home Funding Advisory Consumer Guides FAQs & Glossary Awarded Research Division of Extramural Activities President's Cancer Panel

471

NCI DEA - President's Cancer Panel - Archives  

Cancer.gov

National Institutes of Health, National Cancer Institute, Division of Extramural Activities - Home Page Skip to Main Content Home Funding Advisory Consumer Guides FAQs & Glossary Awarded Research Division of Extramural Activities President's Cancer Panel

472

Panel on Review of Allergenic Extracts.  

National Technical Information Service (NTIS)

The report contains safety and effectiveness evaluations of allergenic extracts and poison ivy and poison oak extracts. Written by the Panel on Review of Allergenic Extracts, an advisory committee to the Bureau of Biologics, Food and Drug Administration, ...

1981-01-01

473

Blast Pendulum Testing of Milliken Tegris Panels.  

National Technical Information Service (NTIS)

Milliken contracted Southwest Research Institute (SwRI) to conduct blast pendulum tests on various panels. The blast pendulum allows one to investigate a material's capability of mitigating sample deformation and bulk structural loading that result from '...

D. J. Grosch E. J. Sagebiel H. Eleazer

2008-01-01

474

Panel Roster Clinical Chemistry and Clinical Toxicology ...  

Center for Biologics Evaluation and Research (CBER)

Text Version... Clinical Chemistry and Clinical Toxicology Devices Panel Methotrexate Test Systems, Phencyclidine (PCP) Test Systems, Isoniazid Test Strips ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

475

British General Election Study: Campaign Panel, 1997  

NSDL National Science Digital Library

The Inter-university Consortium for Political and Social Research (ICPSR) at the University of Michigan in January 1999 added the election study British General Election Study: Campaign Panel, 1997 to its archive. The British General Election Study: Campaign Panel, 1997 surveyed adults in Great Britain to analyze the interaction between economic and political factors and their influence on election outcomes. The study also examined how the "modernization and professionalization of campaign communications" has affected the media, the voters, and political leaders.

Norris, P.; Curtice, J. K.; Jowell, R.; Heath, A.

1998-01-01

476

Impact perforation of sandwich panels with Coremat®  

Microsoft Academic Search

Analytical solutions for the quasi-static and low-velocity perforation of sandwich panels with woven roving E-glass\\/vinyl ester facesheets and Coremat were derived. A multi-stage perforation process involving delamination, debonding, core shear fracture and facesheet fracture was used to predict the quasi-static failure load and ballistic resistance of the panel. The high core-crushing resistance and damping of the Coremat resulted in rupture

Michelle S. Hoo Fatt; Dushyanth Sirivolu

2009-01-01

477

Cathodic casing protection using solar panels  

Microsoft Academic Search

A pilot system using solar cell panels for electrocorrosion protection of cathodic casings, installed on 11 well casings in August 1975, and consisting of 10 impressed-type groundbeds using solar panels and one sacrificial-type groundbed, is studied for effectiveness and expediting a combination of cathodic protection and solar cell technologies. The well casings require 1-2 amp to achieve cathodic protection. Soil

C. M. Wylie Jr.

1976-01-01

478

CLIVAR: Asian-Australian Monsoon Panel  

NSDL National Science Digital Library

This World Climate Research Programme on Climate Variability and Predictability (CLIVAR) website promotes the Asian-Australian Monsoon Panel's investigations of the annual monsoon cycle and its variability. Researchers can find out about the latest workshops and conferences including the Indian Ocean Modelling Workshop in Hawaii. The site features many Monsoon Panel reports detailing the innumerable monsoon process studies, monitoring activities, and modeling strategies. Visitors can read a few concise articles describing monsoon activity in Asia and Australia.

479

Delamination tolerance studies in laminated composite panels  

Microsoft Academic Search

Determination of levels of tolerance in delaminated composite panels is an important issue in composite structures technology.\\u000a The primary intention is to analyse delaminated composite panels and estimate Strain Energy Release Rate (SERR) parameters\\u000a at the delamination front to feed into acceptability criteria. Large deformation analysis is necessary to cater for excessive\\u000a rotational deformations in the delaminated sublaminate. Modified Virtual

K L Singh; B Dattaguru; T S Ramamurthy; P D Mangalgiri

2000-01-01

480

A security panel with a keypad  

DOEpatents

Several control panels presently use keypads to enter data. Sometimes panels require secure keypads in that they must prevent others nearby from seeing the information inputted by the keypad. The invention provides a secure keypad, which is easy to use by the user, yet is difficult for a nonuser to see. The invention places the keypad in a cavity, and provides an opening to allow access to the keypad and a window for viewing the keypad.

Banks, W.W. Jr.; Uhlig, F.

1988-09-27

481

Heavy-duty oil containment system, pneumatic barrier system. Part I  

Microsoft Academic Search

The report presents the results of studies and tests of a pneumatic heavy duty oil containment system. Deployment is accomplished using large Coast Guard vessels or navy salvage ships. The design is intended for long deployment periods. The barrier design described uses a pneumatic curtain to contain the oil. The curtain air is provided by raft mounted compressors in juxtaposition

Houser

1971-01-01

482

Design of panel heating and cooling systems  

SciTech Connect

Panel heating and cooling systems use controlled temperature surfaces in the floor, walls, or ceiling of a conditioned space. The temperature is maintained by a circulating fluid through a circuit embedded in the panel. Heat transfer occurs by radiation and convection to or from a room. The performance of these systems may be determined by design calculations or testing. Thermal testing and system analysis by experiments are costly and inefficient. For different closed panel systems, finite element-based models and programs were developed by which temperature distribution in the construction, interdependence between performance and mean carrier fluid temperature, panel surface temperature, and room temperature can be calculated. One single power function product of all relevant parameters has been derived as an algorithm for performance calculations of panel heating and cooling systems, which can be adapted for other systems. Findings have been verified by experiment for floor heating panels with best results. These basic equations provided the design standards for German Standard DIN 4725, ''Thermal Output of Floor Heating'', which has been adopted as European Standard EN 1264. Finite element method calculation results were also compared with results from design calculations based on the ASHRAE method.

Bohle, J.; Klan, H.

2000-07-01

483

Position detection accuracy of a novel linac-mounted intrafractional x-ray imaging system  

SciTech Connect

Purpose: The authors have developed a system that monitors intrafractional target motion perpendicular to the treatment beam with the aid of radioopaque markers by means of separating kV image and megavoltage (MV) treatment field on a single flat-panel detector. Methods: They equipped a research Siemens Artiste linear accelerator (linac) with a 41 x 41 cm{sup 2} a-Si flat-panel detector underneath the treatment head. The in-line geometry allows kV (imaging) and MV (treatment) beams to share closely aligned beam axes. The kV source, usually mounted directly across from the flat-panel imager, was retracted toward the gantry by 13 cm to intentionally misalign kV and MV beams, resulting in a geometric separation of MV treatment field and kV image on the detector. Two consecutive images acquired within 140 ms (the first with MV-only and the second with kV and MV signal) were subtracted to generate a kV-only image. The images were then analyzed ''online'' with an automated threshold-based marker detection algorithm. They employed a 3D and a 4D phantom equipped with either a single radioopaque marker or three Calypso beacons to mimic respiratory motion. Measured room positions were either cross-referenced with a phantom voltage signal (single marker) or the Calypso system. The accuracy of the back-projection (from detected marker positions into room coordinates) was verified by a simulation study. Results: A phantom study has demonstrated that the imaging framework is capable of automatically detecting marker positions and sending this information to the tracking tool at an update rate of 7.14 Hz. The system latency is 86.9 {+-} 1.0 ms for single marker detection in the absence of MV radiation. In the presence of a circular MV field of 5 cm diameter, the latency is 87.1 {+-} 0.9 ms. The total RMS position detection accuracy is 0.20 mm (without MV radiation) and 0.23 mm (with MV). Conclusions: Based on the evaluated motion patterns and MV field size, the positional accuracy and system latency indicate that this system is suitable for real-time adaptive applications.

Fast, Martin F.; Krauss, Andreas; Oelfke, Uwe; Nill, Simeon [Department of Medical Physics in Radiation Oncology, German Cancer Research Center, Im Neuenheimer Feld 280, D-69120 Heidelberg (Germany)

2012-01-15

484

Sorcerer's Apprentics: Head-Mounted Display and Wand.  

National Technical Information Service (NTIS)

Sorcerer's Apprentice is an interactive computer graphics system using a head-mounted display and a three-dimensional wand. The system allows three-dimensional interaction with line drawings which are displayed in real time, that is about 20 frames per se...

D. L. Vickers

1974-01-01

485

Interactive stereoscopy optimization for head-mounted displays  

Microsoft Academic Search

In current virtual environment systems, the stereoscopic images presented in a head-mounted display are far from optimal. The aim is to achieve orthostereoscopy, which roughly means images should `behave as in real life.' A theoretical model of stereoscopic optics was used to implement a test and optimization system. Tests were devised to analyze the importance of many stereoscopy related parameters.

Patrick Min; Hans Jense

1994-01-01

486

Effect of Head-Mounted Displays on Posture  

Microsoft Academic Search

Objective: The aim of the present study was to determine if a wearable system based on a head-mounted display (HMD) causes users to alter their head position and adopt postures that place greater stress on the musculoskeletal system. Background: HMDs are common output devices used with wearable computers. HMDs provide the wearer with visual information by projecting computer-generated virtual images

James F. Knight; Chris Baber

2007-01-01

487

Optical assessment of head-mounted displays in visual space  

Microsoft Academic Search

The optics of head-mounted displays (HMDs) is designed from the pupil of the eye to the miniature display, and the optics is thus commonly solely assessed in the plane of the miniature display. Such assessment does not provide information that usefully interfaces with task-based performance metrics. We present a comprehensive framework for the assessment of the optics of HMDs in

Yonggang Ha; Jannick Rolland

2002-01-01

488

Motion Sickness, Console Video Games, and Head-Mounted Displays  

Microsoft Academic Search

Objective: We evaluated the nauseogenic properties of commercial console video games (i.e., games that are sold to the public) when presented through a head-mounted display. Background: Anecdotal reports suggest that motion sickness may occur among players of contemporary commercial console video games. Methods: Participants played standard console video games using an Xbox game system. We varied the participants' posture (standing

Omar A. Merhi; Elise Faugloire; Moira B. Flanagan; Thomas A. Stoffregen

2007-01-01

489

Mathematical Model of the Film-Mounted Rocketsonde Thermistor  

Microsoft Academic Search

A mathematical model is developed for the film-mounted thermistor bead temperature sensor used in current meteorological rocketsondes. Thermometric correction formulas are given suited to programming for automatic data processing. The development treats the convection, radiation, electric heating and dynamic lag of the thermistor bead, along with the convective, radiative and conductive behavior of its supporting electric wires and film. The

Forrest L. Staffanson

1971-01-01

490

Eruption of Mount Pinatubo in the Philippines in June 1991  

Microsoft Academic Search

The Pinatubo eruption of June 1991: The nature and impact of the disaster Nature of the disaster Reawakened after more than 500 years of slumber, Mount Pinatubo in the island of Luzon in the Philippines showed signs of imminent eruption early April 1991. On 12 June 1991 (Philippine Independence Day), its intermittent eruptions began. Three days after, on 15 June

Emmanuel M. de Guzman

491

Numerical simulation of thrust reverser for rear mounted engine  

Microsoft Academic Search

The objectives of the study were to establish the feasibility of the evaluation of the performances of thrust reverser systems through numerical simulations, with Onera's Cedre computation code. Two configurations were retained, the first one was an isolated engine and the second one was an installed engine in a rear mounted generic configuration. The first configuration concerns the aft part

G. TURPIN; F. VUILLOT; C. CROISY; D. BERNIER

492

Very long period oscillations of Mount Erebus Volcano  

Microsoft Academic Search

The exposed top of the conduit system at Mount Erebus Volcano, Ross Island, Antarctica, is a convecting lava (magma) lake hosting Strombolian eruptions caused by the explosive decompression of large (up to 5 m radius) gas slugs. Short-period (SP; f >=1 Hz) seismoacoustic eruption seismograms are accompanied by oscillatory very long period (VLP) signals observed in the near field by

R. Aster; S. Mah; P. Kyle; W. McIntosh; N. Dunbar; J. Johnson; M. Ruiz; S. McNamara

2003-01-01

493

Mount St. Helens volcano: Recent and future behavior  

USGS Publications Warehouse

Mount St. Helens volcano in southern Washington has erupted many times during the last 4000 years, usually after brief dormant periods. This behavior pattern suggests that the volcano, last active in 1857, will erupt again - perhaps within the next few decades. Potential volcanic hazards of several kinds should be considered in planning for land use near the volcano.

Crandell, D. R.; Mullineaux, D. R.; Rubin, M.

1975-01-01

494

Streaming potential in volcanic rocks from Mount Pelée  

Microsoft Academic Search

Streaming potential and electric conductivity have been measured in a laboratory on 11 consolidated samples coming from five deposits of the different evolutionary stages of Mount Pelée volcano. The streaming potential coupling coefficient ranges from -35 to -4905 mV MPa-1 and increases with increasing permeability. This increase is mainly due to the dependency of rock effective conductivity with permeability. The

Laurence Jouniaux; Marie Lise Bernard; Maria Zamora; Jean Pierre Pozzi

2000-01-01

495

View forward of five inch gun mounted in sponson; note ...  

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

View forward of five inch gun mounted in sponson; note glass windows which would be removed in combat, gudgeons below window allowed attachment of armor plate which could be swung up to protect gun crew in battle; also note lower section of flag rack at top left center of photograph. (p39) - USS Olympia, Penn's Landing, 211 South Columbus Boulevard, Philadelphia, Philadelphia County, PA

496

62. SIXTEEN INCH GUN MOUNTED ON THE MACHINING LATHE; LOOKING ...  

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

62. SIXTEEN INCH GUN MOUNTED ON THE MACHINING LATHE; LOOKING WSW. THE GUN ITSELF EXTENDS BEYOND THE BRICK ARCHES OF THE MAIN SHOP FLOOR'S W WALL AND INTO THE W AISLE. THE LATHE'S CUTTING HEAD CAN BE SEEN AT THE RIGHT CENTER OF THE VIEW. (Ryan) - Watervliet Arsenal, Building No. 110, Hagner Road between Schull & Whittemore Roads, Watervliet, Albany County, NY

497

Unusual pre-Mount Simon geology in Clark County, Ohio  

SciTech Connect

A well drilled by Pure Oil Company in 1926 in Clark County, Ohio and seismic sections gathered by Wright State University in 1992 and 1993 in the proximity of that well identify unusual geology below the Mount Simon Sandstone. The pair of perpendicular seismic lines cross about a mile from the well. The well encountered about 365 m of a black phosphatic limestone below the Mount Simon Formation. This is the only well that has encountered this unit in Ohio. On each seismic section the pre-Mount Simon surface is irregular with as much as 100 m of relief. Below this surface about 2,000 m of layered rocks, that include the limestone at the top, show onlap to the north suggesting the filling of a basin. The units beneath this sequence of rocks are reverse faulted and dip to the west. When the Clark County seismic sections are compared to recent seismic data to the south in Clinton and Greene Counties similar features are observed. The authors believe the following sequence of events occurred. There was substantial faulting in the late Proterozoic to produce the westward dips and the irregular surface on which the overlying sequence of layered rocks was deposited. Then prior to deposition of the Mount Simon Sandstone, subareal erosion occurred producing a karst surface with at least 100 m relief.

Richard, B.H.; Wolfe, P.J. (Wright State Univ., Dayton, OH (United States))

1994-04-01

498

The Chiastic Structure of the Sermon on the Mount  

Microsoft Academic Search

Probably no other religious discourse in history has attracted as much attention as the Sermon on the Mount. The amount of writing given over to this passage of Scripture is phenomenal.' Despite the vast amount of scholarship given over to this discourse, there continues to be a steady stream of new writings. This stems from the fact that these writings

Harry William Hernandez

1994-01-01

499

"Seemingly Uncouth Forms": Letters at Mount Holyoke Female Seminary  

ERIC Educational Resources Information Center

|Dispelling historical narratives in composition and rhetoric that largely depict nineteenth-century student compositions as "vacuous" themes, this archival study examines women's compositions at Mount Holyoke Female Seminary as complex generic hybrids, in which the composition is fused with common social and dialogic forms. By focusing…

Spring, Suzanne B.

2008-01-01

500

Modelling thermal behavior of surface mounted components during reflow soldering  

Microsoft Academic Search

Nowadays reflow soldering is the most widespread technology used for electrical and mechanical attachment of surface mount devices (SMDs) to printed wiring boards (PWBs). In recent re- flow ovens the required temperature to remelt the solder was typ- ically achieved by forced convection. Nevertheless the thermal conduction is also important for the exact description of the sol- dering process because

Bálint Sinkovics; Gábor Harsányi

2008-01-01