Sample records for safety parameter display

  1. Military display performance parameters

    NASA Astrophysics Data System (ADS)

    Desjardins, Daniel D.; Meyer, Frederick

    2012-06-01

    The military display market is analyzed in terms of four of its segments: avionics, vetronics, dismounted soldier, and command and control. Requirements are summarized for a number of technology-driving parameters, to include luminance, night vision imaging system compatibility, gray levels, resolution, dimming range, viewing angle, video capability, altitude, temperature, shock and vibration, etc., for direct-view and virtual-view displays in cockpits and crew stations. Technical specifications are discussed for selected programs.

  2. 75 FR 35968 - Safety Zone; Fireworks Display in Stevenson, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-24

    ...-AA00 Safety Zone; Fireworks Display in Stevenson, WA AGENCY: Coast Guard, DHS. ACTION: Temporary final... safety of the maritime public during the fireworks display and will do so by prohibiting all persons and... with fireworks displays on navigable waters. Such hazards include premature detonations, dangerous...

  3. 77 FR 35857 - Safety Zone, Fireworks Display, Lake Superior; Duluth, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ... 1625-AA00 Safety Zone, Fireworks Display, Lake Superior; Duluth, MN AGENCY: Coast Guard, DHS. ACTION... of Lake Superior during the Duluth Fourth Fest fireworks display. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with fireworks displays. DATES: This...

  4. 75 FR 29427 - Safety Zone; AVI May Fireworks Display, Laughlin, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-26

    ...-AA00 Safety Zone; AVI May Fireworks Display, Laughlin, NV AGENCY: Coast Guard, DHS. ACTION: Temporary... Colorado River, Laughlin, NV, in support of a fireworks display near the AVI Resort and Casino. This safety... Fireworks Display; Laughlin, Nevada, NV in the Federal Register (75 FR 9370). We received 0 comments on the...

  5. 75 FR 34636 - Safety Zone; Jameson Beach 4th of July Fireworks Display

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-18

    ...-AA00 Safety Zone; Jameson Beach 4th of July Fireworks Display AGENCY: Coast Guard, DHS. ACTION... waters of Lake Tahoe, for the Jameson Beach 4th of July Fireworks Display. This safety zone is... Safety Zone; Jameson Beach 4th of July Fireworks Display. (a) Location. This temporary safety zone is...

  6. 75 FR 39197 - Safety Zone; Fireworks Display, Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ...-AA00 Safety Zone; Fireworks Display, Portland, OR AGENCY: Coast Guard, DHS. ACTION: Notice of proposed..., and the shoreline to the east and west in support of the Oregon Symphony Celebration Fireworks Display... Register. Basis and Purpose The Oregon Symphony Celebration Fireworks display is an annual event. The...

  7. Piloted studies of Enhanced or Synthetic Vision display parameters

    NASA Technical Reports Server (NTRS)

    Harris, Randall L., Sr.; Parrish, Russell V.

    1992-01-01

    This paper summarizes the results of several studies conducted at Langley Research Center over the past few years. The purposes of these studies were to investigate parameters of pictorial displays and imaging sensors that affect pilot approach and landing performance. Pictorial displays have demonstrated exceptional tracking performance and improved the pilots' spatial awareness. Stereopsis cueing improved pilot flight performance and reduced pilot stress. Sensor image parameters such as increased field-of-view. faster image update rate, and aiding symbology improved flare initiation. Finer image resolution and magnification improved attitude control performance parameters.

  8. 77 FR 40511 - Safety Zone; GR Symphony Fireworks Display, Kalamazoo Lake, Saugatuck, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ...-AA00 Safety Zone; GR Symphony Fireworks Display, Kalamazoo Lake, Saugatuck, MI AGENCY: Coast Guard, DHS... Kalamazoo Lake during the GR Symphony Fireworks display. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with a fireworks display. DATES: This rule will be...

  9. Bifocal computational near eye light field displays and Structure parameters determination scheme for bifocal computational display.

    PubMed

    Liu, Mali; Lu, Chihao; Li, Haifeng; Liu, Xu

    2018-02-19

    We propose a bifocal computational near eye light field display (bifocal computational display) and structure parameters determination scheme (SPDS) for bifocal computational display that achieves greater depth of field (DOF), high resolution, accommodation and compact form factor. Using a liquid varifocal lens, two single-focal computational light fields are superimposed to reconstruct a virtual object's light field by time multiplex and avoid the limitation on high refresh rate. By minimizing the deviation between reconstructed light field and original light field, we propose a determination framework to determine the structure parameters of bifocal computational light field display. When applied to different objective to SPDS, it can achieve high average resolution or uniform resolution display over scene depth range. To analyze the advantages and limitation of our proposed method, we have conducted simulations and constructed a simple prototype which comprises a liquid varifocal lens, dual-layer LCDs and a uniform backlight. The results of simulation and experiments with our method show that the proposed system can achieve expected performance well. Owing to the excellent performance of our system, we motivate bifocal computational display and SPDS to contribute to a daily-use and commercial virtual reality display.

  10. 76 FR 53051 - Safety Zone; ISAF Nations Cup Grand Final Fireworks Display, Sheboygan, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-25

    ...-AA00 Safety Zone; ISAF Nations Cup Grand Final Fireworks Display, Sheboygan, WI AGENCY: Coast Guard.... Background and Purpose The ISAF Nations Cup Grand Final fireworks are a City permitted fireworks display that.... 165.T09-0755 Safety Zone; ISAF Nations Cup Grand Final Fireworks Display, Sheboygan, Wisconsin. (a...

  11. 76 FR 31846 - Safety Zone; 28th Annual Humboldt Bay Festival, Fireworks Display, Eureka, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ...-AA00 Safety Zone; 28th Annual Humboldt Bay Festival, Fireworks Display, Eureka, CA AGENCY: Coast Guard... support of the 28th Annual Humboldt Bay Festival Fireworks Display on the specified waters off the South... Humboldt Bay Festival Fireworks Display. The fireworks display is for entertainment purposes. This safety...

  12. Cockpit Displays for Enhancing Terminal-Area Situational Awareness and Runway Safety

    NASA Technical Reports Server (NTRS)

    Hyer, Paul V.; Otero, Sharon; Jones, Denise R. (Technical Monitor)

    2007-01-01

    HUD and PFD displays have been developed to enhance situational awareness and improve runway safety. These displays were designed to seamlessly transition through all phases of flight providing guidance and information to the pilot. This report describes the background of the Langley Research Center (LaRC) HUD and PFD work, the steps required to integrate the displays with those of other LaRC programs, the display characteristics of the several operational modes and the transitional logic governing the transition between displays.

  13. 75 FR 51180 - Safety Zone; AVI September Fireworks Display, Laughlin, Nevada, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-19

    ...-AA00 Safety Zone; AVI September Fireworks Display, Laughlin, Nevada, NV AGENCY: Coast Guard, DHS... waters of the lower Colorado River, Laughlin, NV, in support of a fireworks display near the AVI Resort... Zone; AVI September Fireworks Display; Laughlin, Nevada, NV in the Federal Register (75 FR 23206). We...

  14. 77 FR 50593 - Safety Zone; Seafood Festival Fireworks Display, Marquette, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ...-AA00 Safety Zone; Seafood Festival Fireworks Display, Marquette, MI AGENCY: Coast Guard, DHS. ACTION... the Annual Marquette Seafood Festival. The Captain of the Port, Sector Sault Sainte Marie, has determined that the Marquette Seafood Festival Fireworks Display will pose significant risks to the public...

  15. 75 FR 23206 - Safety Zone; AVI September Fireworks Display, Laughlin, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-03

    ...-AA00 Safety Zone; AVI September Fireworks Display, Laughlin, NV AGENCY: Coast Guard, DHS. ACTION... the lower Colorado River, Laughlin, NV, in support of a fireworks display near the AVI Resort and... navigable waters of the Lower Colorado River in support of a fireworks show in the navigation channel of the...

  16. 33 CFR 165.151 - Safety Zones; Long Island Sound annual fireworks displays.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....5″ W; and barge two, 41°20′51.75″ N, 72°05′18.90″ W. (11) Harbor Day Fireworks Safety Zone. All... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zones; Long Island Sound... § 165.151 Safety Zones; Long Island Sound annual fireworks displays. (a) Safety Zones. The following...

  17. 33 CFR 165.151 - Safety Zones; Long Island Sound annual fireworks displays.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....5″ W; and barge two, 41°20′51.75″ N, 72°05′18.90″ W. (11) Harbor Day Fireworks Safety Zone. All... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zones; Long Island Sound... § 165.151 Safety Zones; Long Island Sound annual fireworks displays. (a) Safety Zones. The following...

  18. 75 FR 37722 - Safety Zone; July Fireworks Display in Captain of the Port, Puget Sound AOR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-30

    ...-AA00 Safety Zone; July Fireworks Display in Captain of the Port, Puget Sound AOR AGENCY: Coast Guard... rule established a temporary safety zone on the waters of Port Gardner Bay, Washington in support of... positioning of the display. The safety zone is necessary to protect the maritime public from dangers...

  19. Method and system for monitoring and displaying engine performance parameters

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S. (Inventor); Person, Lee H., Jr. (Inventor)

    1988-01-01

    The invention is believed a major improvement that will have a broad application in governmental and commercial aviation. It provides a dynamic method and system for monitoring and simultaneously displaying in easily scanned form the available, predicted, and actual thrust of a jet aircraft engine under actual operating conditions. The available and predicted thrusts are based on the performance of a functional model of the aircraft engine under the same operating conditions. Other critical performance parameters of the aircraft engine and functional model are generated and compared, the differences in value being simultaneously displayed in conjunction with the displayed thrust values. Thus, the displayed information permits the pilot to make power adjustments directly while keeping him aware of total performance at a glance of a single display panel.

  20. 75 FR 34374 - Safety Zone; Stockton Ports Baseball Club/City of Stockton, 4th of July Fireworks Display...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-17

    ...-AA00 Safety Zone; Stockton Ports Baseball Club/City of Stockton, 4th of July Fireworks Display... July 4th fireworks display. This safety zone is established to ensure the safety of participants and... will sponsor the Stockton Ports Baseball Club/City of Stockton 4th of July Fireworks Display on July 4...

  1. 77 FR 29251 - Safety Zone; Carnival Fireworks Display, Nantasket Beach, Hull, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-17

    ...-AA00 Safety Zone; Carnival Fireworks Display, Nantasket Beach, Hull, MA AGENCY: Coast Guard, DHS... zone on the navigable waters off of Nantasket Beach in the vicinity of Hull, MA for a Carnival... spectators and vessels from the hazards associated with fireworks displays. Discussion of Proposed Rule Hull...

  2. 77 FR 42179 - Safety Zone; Fireworks Display, Potomac River, Charles County, Newburg, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-18

    ...]30[sec] W, located at Newburg in Charles County, Maryland (NAD 1983). The temporary safety zone will... 1625-AA00 Safety Zone; Fireworks Display, Potomac River, Charles County, Newburg, MD AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard will establish a safety zone upon...

  3. 78 FR 59313 - Safety Zones; Captain of the Port Boston Fireworks Display Zones, Boston Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ...-AA00 Safety Zones; Captain of the Port Boston Fireworks Display Zones, Boston Harbor, Boston, MA AGENCY... establish six permanent safety zones throughout Boston Inner Harbor to be enforced during fireworks displays. These six permanent safety zones would expedite public notification of a fireworks event and ensure the...

  4. 78 FR 39992 - Safety Zone; Feast of Lanterns Fireworks Display, Pacific Grove, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ...-AA00 Safety Zone; Feast of Lanterns Fireworks Display, Pacific Grove, CA AGENCY: Coast Guard, DHS... zone in the navigable waters near Lover's Point Park in the Pacific Grove, CA in support of The Feast of Lanterns Fireworks Event on July 27, 2013. This safety zone is established to ensure the safety of...

  5. 78 FR 38833 - Safety Zone: City of Martinez Fourth of July Fireworks Display, Carquinez Strait, Martinez, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-28

    ...-AA00 Safety Zone: City of Martinez Fourth of July Fireworks Display, Carquinez Strait, Martinez, CA... temporary safety zone in the navigable waters of Carquinez Strait near Martinez, CA in support of the City of Martinez Fourth of July Fireworks Display on July 4, 2013. This safety zone is established to...

  6. 76 FR 44531 - Safety Zone; Fourth Annual Chillounge Night St. Petersburg Fireworks Display, Tampa Bay, St...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-26

    ...-AA00 Safety Zone; Fourth Annual Chillounge Night St. Petersburg Fireworks Display, Tampa Bay, St... proposes to establish a temporary safety zone on the waters of Tampa Bay in St. Petersburg, Florida during the Fourth Annual Chillounge Night St. Petersburg Fireworks Display on Saturday, November 19, 2011...

  7. 76 FR 68098 - Safety Zone; Fourth Annual Chillounge Night St. Petersburg Fireworks Display, Tampa Bay, St...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ...-AA00 Safety Zone; Fourth Annual Chillounge Night St. Petersburg Fireworks Display, Tampa Bay, St... Guard is establishing a temporary safety zone on the waters of Tampa Bay in St. Petersburg, Florida during the Fourth Annual Chillounge Night St. Petersburg Fireworks Display on Saturday, November 19, 2011...

  8. 76 FR 38305 - Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-30

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG 2011-0402] Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION... annual San Francisco Chronicle Fireworks Display (Independence Day Celebration for the City of San...

  9. Particle parameter analyzing system. [x-y plotter circuits and display

    NASA Technical Reports Server (NTRS)

    Hansen, D. O.; Roy, N. L. (Inventor)

    1969-01-01

    An X-Y plotter circuit apparatus is described which displays an input pulse representing particle parameter information, that would ordinarily appear on the screen of an oscilloscope as a rectangular pulse, as a single dot positioned on the screen where the upper right hand corner of the input pulse would have appeared. If another event occurs, and it is desired to display this event, the apparatus is provided to replace the dot with a short horizontal line.

  10. Tactile display landing safety and precision improvements for the Space Shuttle

    NASA Astrophysics Data System (ADS)

    Olson, John M.

    A tactile display belt using 24 electro-mechanical tactile transducers (tactors) was used to determine if a modified tactile display system, known as the Tactile Situation Awareness System (TSAS) improved the safety and precision of a complex spacecraft (i.e. the Space Shuttle Orbiter) in guided precision approaches and landings. The goal was to determine if tactile cues enhance safety and mission performance through reduced workload, increased situational awareness (SA), and an improved operational capability by increasing secondary cognitive workload capacity and human-machine interface efficiency and effectiveness. Using both qualitative and quantitative measures such as NASA's Justiz Numerical Measure and Synwork1 scores, an Overall Workload (OW) measure, the Cooper-Harper rating scale, and the China Lake Situational Awareness scale, plus Pre- and Post-Flight Surveys, the data show that tactile displays decrease OW, improve SA, counteract fatigue, and provide superior warning and monitoring capacity for dynamic, off-nominal, high concurrent workload scenarios involving complex, cognitive, and multi-sensory critical scenarios. Use of TSAS for maintaining guided precision approaches and landings was generally intuitive, reduced training times, and improved task learning effects. Ultimately, the use of a homogeneous, experienced, and statistically robust population of test pilots demonstrated that the use of tactile displays for Space Shuttle approaches and landings with degraded vehicle systems, weather, and environmental conditions produced substantial improvements in safety, consistency, reliability, and ease of operations under demanding conditions. Recommendations for further analysis and study are provided in order to leverage the results from this research and further explore the potential to reduce the risk of spaceflight and aerospace operations in general.

  11. 78 FR 75249 - Safety Zone: Google's Night at Sea Fireworks Display, San Francisco Bay, Alameda, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-11

    ...-AA00 Safety Zone: Google's Night at Sea Fireworks Display, San Francisco Bay, Alameda, CA AGENCY: Coast... Google's Night at Sea Fireworks Displays on December 7, 2013 and December 14, 2013. These safety zones... Notice of Proposed Rulemaking A. Regulatory History and Information The Coast Guard is issuing this...

  12. 75 FR 38716 - Safety Zone; Vietnam Veterans of America Fireworks Display, Brookings, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ...-AA00 Safety Zone; Vietnam Veterans of America Fireworks Display, Brookings, OR AGENCY: Coast Guard, DHS... waters of Pelican Bay and the Pacific Ocean for the Vietnam Veterans of America Fireworks Display near... period will have passed. Basis and Purpose The Vietnam Veterans of America are holding a fireworks...

  13. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  14. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  15. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  16. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  17. 33 CFR 165.1314 - Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Fort Vancouver... Thirteenth Coast Guard District § 165.1314 Safety Zone; Fort Vancouver Fireworks Display, Columbia River, Vancouver, Washington. (a) Location. The following area is a safety zone: All waters of the Columbia River...

  18. 75 FR 9370 - Safety Zone; AVI May Fireworks Display, Colorado River, Laughlin, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-02

    ...-AA00 Safety Zone; AVI May Fireworks Display, Colorado River, Laughlin, NV AGENCY: Coast Guard, DHS... waters of the lower Colorado River, Laughlin, NV, in support of a fireworks display near the AVI Resort... navigable waters of the Lower Colorado River in support of a fireworks show near Laughlin, NV. The fireworks...

  19. 78 FR 38835 - Safety Zone: City of Vallejo Fourth of July Fireworks Display, Mare Island Strait, Vallejo, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-28

    ...-AA00 Safety Zone: City of Vallejo Fourth of July Fireworks Display, Mare Island Strait, Vallejo, CA... temporary safety zone in the navigable waters of Mare Island Strait near Vallejo, CA in support of the City of Vallejo Fourth of July Fireworks Display on July 4, 2013. This safety zone is established to...

  20. 76 FR 68101 - Safety Zone; Art Gallery Party St. Pete 2011 Fireworks Display, Tampa Bay, St. Petersburg, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ...-AA00 Safety Zone; Art Gallery Party St. Pete 2011 Fireworks Display, Tampa Bay, St. Petersburg, FL... temporary safety zone on the waters of Tampa Bay in the vicinity of Spa Beach in St. Petersburg, Florida during the Art Gallery Party St. Pete 2011 Fireworks Display on Friday, November 11, 2011. The safety...

  1. Display Parameters and Requirements

    NASA Astrophysics Data System (ADS)

    Bahadur, Birendra

    The following sections are included: * INTRODUCTION * HUMAN FACTORS * Anthropometry * Sensory * Cognitive * Discussions * THE HUMAN VISUAL SYSTEM - CAPABILITIES AND LIMITATIONS * Cornea * Pupil and Iris * Lens * Vitreous Humor * Retina * RODS - NIGHT VISION * CONES - DAY VISION * RODS AND CONES - TWILIGHT VISION * VISUAL PIGMENTS * MACULA * BLOOD * CHOROID COAT * Visual Signal Processing * Pathways to the Brain * Spatial Vision * Temporal Vision * Colour Vision * Colour Blindness * DICHROMATISM * Protanopia * Deuteranopia * Tritanopia * ANOMALOUS TRICHROMATISM * Protanomaly * Deuteranomaly * Tritanomaly * CONE MONOCHROMATISM * ROD MONOCHROMATISM * Using Colour Effectively * COLOUR MIXTURES AND THE CHROMATICITY DIAGRAM * Colour Matching Functions and Chromaticity Co-ordinates * CIE 1931 Colour Space * CIE PRIMARIES * CIE COLOUR MATCHING FUNCTIONS AND CHROMATICITY CO-ORDINATES * METHODS FOR DETERMINING TRISTIMULUS VALUES AND COLOUR CO-ORDINATES * Spectral Power Distribution Method * Filter Method * CIE 1931 CHROMATICITY DIAGRAM * ADDITIVE COLOUR MIXTURE * CIE 1976 Chromaticity Diagram * CIE Uniform Colour Spaces and Colour Difference Formulae * CIELUV OR L*u*v* * CIELAB OR L*a*b* * CIE COLOUR DIFFERENCE FORMULAE * Colour Temperature and CIE Standard Illuminants and source * RADIOMETRIC AND PHOTOMETRIC QUANTITIES * Photopic (Vλ and Scotopic (Vλ') Luminous Efficiency Function * Photometric and Radiometric Flux * Luminous and Radiant Intensities * Incidence: Illuminance and Irradiance * Exitance or Emittance (M) * Luminance and Radiance * ERGONOMIC REQUIREMENTS OF DISPLAYS * ELECTRO-OPTICAL PARAMETERS AND REQUIREMENTS * Contrast and Contrast Ratio * Luminance and Brightness * Colour Contrast and Chromaticity * Glare * Other Aspects of Legibility * SHAPE AND SIZE OF CHARACTERS * DEFECTS AND BLEMISHES * FLICKER AND DISTORTION * ANGLE OF VIEW * Switching Speed * Threshold and Threshold Characteristic * Measurement Techniques For Electro-optical Parameters * RADIOMETRIC

  2. 75 FR 18056 - Safety Zone; Fireworks Display, Patuxent River, Solomons Island Harbor, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-09

    ..., DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone... necessary to provide for the safety of life on navigable waters during a fireworks display launched from... protect the maritime public in a portion of Solomons Island Harbor. DATES: This rule is effective from 7...

  3. 78 FR 39601 - Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ...-AA00 Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA AGENCY: Coast... the Delaware River. Sugar House Casino has contracted with Pyrotecnico Fireworks to arrange for this display. The Captain of the Port, Sector Delaware Bay, has determined that the Sugar House Casino...

  4. 78 FR 39995 - Safety Zone; Margate Mother's Association Fireworks Display, Atlantic Ocean; Margate, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ...-AA00 Safety Zone; Margate Mother's Association Fireworks Display, Atlantic Ocean; Margate, NJ AGENCY... launched from a barge with a fall out zone that covers part of the Atlantic Ocean. Margate Mother's..., Sector Delaware Bay, has determined that the Margate Mother's Association Fireworks Display will pose...

  5. 76 FR 37649 - Safety Zone; Northern California Annual Fireworks Events, July 4th Fireworks Display

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ... Zone; Northern California Annual Fireworks Events, July 4th Fireworks Display AGENCY: Coast Guard, DHS... annual July 4th Fireworks Display (Tahoe City 4th of July Fireworks Display). This action is necessary to... INFORMATION: The Coast Guard will enforce the safety zone for the annual Tahoe City 4th of July Fireworks in...

  6. 33 CFR 165.T05-0495 - Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone, Sugar House Casino Fireworks Display, Delaware River; Philadelphia, PA. 165.T05-0495 Section 165.T05-0495 Navigation and... Areas Fifth Coast Guard District § 165.T05-0495 Safety Zone, Sugar House Casino Fireworks Display...

  7. 76 FR 31843 - Safety Zone; Temporary Change to Enforcement Location of Recurring Fireworks Display Event...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ...-AA00 Safety Zone; Temporary Change to Enforcement Location of Recurring Fireworks Display Event... Guard is temporarily changing the enforcement location of a safety zone for one specific recurring... originated from a barge but will this year originate from a location on land. The safety zone is necessary to...

  8. 78 FR 41844 - Safety Zone; Fairfield Estates Fireworks Display, Atlantic Ocean, Sagaponack, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-12

    ... Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety... fireworks display. This action is necessary to provide for the safety of life on navigable waters during the... rule is effective from 8:30 p.m. August 1, 2013, until 10:30 p.m. on August 2, 2013. This rule will be...

  9. 78 FR 75898 - Safety Zone; Sacramento New Years Eve Fireworks Display, Sacramento River, Sacramento, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-13

    ...[deg]30'29.61'' W (NAD 83). Upon the commencement of the fireworks display, scheduled to begin at 9 p.m....61'' W (NAD 83) within a radius of 1,000 feet. At the conclusion of the fireworks display the safety...

  10. Optical parameters of TN display with dichroic dye

    NASA Astrophysics Data System (ADS)

    Olifierczuk, Marek; Zielinski, Jerzy; Perkowski, Pawel

    2000-05-01

    The present work contain the studies on optical parameters (contrast ratio, viewing angle, birefringence and brightness) of twisted nematic display with black dichroic dye which is designed for an application in large-area information and advertising systems. The numerical optimization of display with a dye has been done. The absorption characteristic of the dye has been obtained. Birefringence of doped mixtures (Delta) n has been measured. The contrast ratio of doped mixtures has been measured in wide temperature range from -25 degree(s)C to +70 degree(s)C. The angle characteristics of contrast ratio for +20 degree(s)C have been obtained. In the work the detailed results describing the effect of a dye on temperature dependence of birefringence and contrast ratio, moreover, the effect of dye on the viewing angle for the first and second transmission minimum will be presented. Additionally, the dielectric characteristics of different mixtures will be shown.

  11. 76 FR 37650 - Safety Zone; 4th of July Festival Berkeley Marina Fireworks Display Berkeley, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ...-AA00 Safety Zone; 4th of July Festival Berkeley Marina Fireworks Display Berkeley, CA AGENCY: Coast... the 4th of July Festival Berkeley Marina Fireworks Display. Unauthorized persons or vessels are... display. Background and Purpose The City of Berkeley Marina will sponsor the 4th of July Festival Berkeley...

  12. 33 CFR 165.168 - Safety Zones; Coast Guard Captain of the Port New York Fireworks Displays.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zones; Coast Guard Captain... Guard District § 165.168 Safety Zones; Coast Guard Captain of the Port New York Fireworks Displays. (a) New York Harbor. The following areas are safety zones: (1) Liberty Island Safety Zone: All waters of...

  13. 33 CFR 100.T05-0443 - Safety Zone; Fireworks Display, Delaware River, New Hope, PA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Delaware River, New Hope, PA. 100.T05-0443 Section 100.T05-0443 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY REGATTAS AND MARINE PARADES SAFETY OF LIFE ON NAVIGABLE WATERS § 100.T05-0443 Safety Zone; Fireworks Display, Delaware River, New Hope, PA. (a) Location. The safety zone will restrict...

  14. 78 FR 38830 - Safety Zone; Execpro Services Fireworks Display, Lake Tahoe, Incline Village, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-28

    ... spectators from the dangers associated with the pyrotechnics. Unauthorized persons or vessels are prohibited... pyrotechnics used in this fireworks display, the safety zone is necessary to provide for the safety of event... loading, transit and arrival of the pyrotechnics from the loading site to the launch site and until the...

  15. Method and system for monitoring and displaying engine performance parameters

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S. (Inventor); Person, Jr., Lee H. (Inventor)

    1991-01-01

    The invention is a method and system for monitoring and directly displaying the actual thrust produced by a jet aircraft engine under determined operating conditions and the available thrust and predicted (commanded) thrust of a functional model of an ideal engine under the same determined operating conditions. A first set of actual value output signals representative of a plurality of actual performance parameters of the engine under the determined operating conditions is generated and compared with a second set of predicted value output signals representative of the predicted value of corresponding performance parameters of a functional model of the engine under the determined operating conditions to produce a third set of difference value output signals within a range of normal, caution, or warning limit values. A thrust indicator displays when any one of the actual value output signals is in the warning range while shaping function means shape each of the respective difference output signals as each approaches the limit of the respective normal, caution, and warning range limits.

  16. 77 FR 64722 - Safety Zone: Leukemia & Lymphoma Light the Night Walk Fireworks Display; Willamette River...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-23

    ... 1625-AA00 Safety Zone: Leukemia & Lymphoma Light the Night Walk Fireworks Display; Willamette River... Steele Bridge and the Burnside Bridge, and will be enforced during the Leukemia & Lymphoma Light the... Light the Night Walk Fireworks Display; Willamette River, Portland, OR. (a) Location. The following area...

  17. 78 FR 74010 - Safety Zone: Sausalito Lighted Boat Parade Fireworks Display, San Francisco Bay, Sausalito, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ...-AA00 Safety Zone: Sausalito Lighted Boat Parade Fireworks Display, San Francisco Bay, Sausalito, CA... temporary safety zone in the navigable waters of the San Francisco Bay off of Spinnaker Point near Sausalito... safety zone is established to help protect participants and spectators from the dangers associated with...

  18. Content dependent selection of image enhancement parameters for mobile displays

    NASA Astrophysics Data System (ADS)

    Lee, Yoon-Gyoo; Kang, Yoo-Jin; Kim, Han-Eol; Kim, Ka-Hee; Kim, Choon-Woo

    2011-01-01

    Mobile devices such as cellular phones and portable multimedia player with capability of playing terrestrial digital multimedia broadcasting (T-DMB) contents have been introduced into consumer market. In this paper, content dependent image quality enhancement method for sharpness and colorfulness and noise reduction is presented to improve perceived image quality on mobile displays. Human visual experiments are performed to analyze viewers' preference. Relationship between the objective measures and the optimal values of image control parameters are modeled by simple lookup tables based on the results of human visual experiments. Content dependent values of image control parameters are determined based on the calculated measures and predetermined lookup tables. Experimental results indicate that dynamic selection of image control parameters yields better image quality.

  19. 77 FR 35852 - Safety Zones; Multiple Firework Displays in Captain of the Port, Puget Sound Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ... 13045, Protection of Children from Environmental Health Risks and Safety Risks. This rule is not an economically significant rule and does not create an environmental risk to health or risk to safety that may... 1625-AA00 Safety Zones; Multiple Firework Displays in Captain of the Port, Puget Sound Zone AGENCY...

  20. 76 FR 25545 - Safety Zone; Blue Crab Festival Fireworks Display, Little River, Little River, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-05

    ...-AA00 Safety Zone; Blue Crab Festival Fireworks Display, Little River, Little River, SC AGENCY: Coast... zone on the waters of Little River in Little River, South Carolina during the Blue Crab Festival... this rule because the Coast Guard did not receive notice of the Blue Crab Festival Fireworks Display...

  1. 78 FR 37966 - Safety Zone; National Cherry Festival Air Show and Fireworks Display, West Grand Traverse Bay...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-25

    ...-AA00 Safety Zone; National Cherry Festival Air Show and Fireworks Display, West Grand Traverse Bay... the hazards associated with fireworks displays and aircraft involved in the National Cherry Festival... Festival fireworks display and air show. At the close of the comment period, no comments were received in...

  2. 75 FR 25111 - Safety Zone; KFOG Kaboom, Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-07

    ... associated with the pyrotechnics. Unauthorized persons or vessels are prohibited from entering into... posed by the pyrotechnics used in these fireworks displays, the safety zones are necessary to provide... effective date of this rule would expose mariners to the dangers posed by the pyrotechnics used in the...

  3. 76 FR 37009 - Safety Zone; Jameson Beach Fourth of July Fireworks Display

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... pyrotechnics. Unauthorized persons or vessels are prohibited from entering into, transiting through, or.... Because of the dangers posed by the pyrotechnics used in this fireworks display, the safety zone is... effective date of this rule would expose mariners to the dangers posed by the pyrotechnics used in the...

  4. Color Functionality Used in Visual Display for Occupational and Environmental Safety and Managing Color Vision Deficiency.

    PubMed

    Ochiai, Nobuhisa; Kondo, Hiroyuki

    2017-01-01

    The effects of color perception are utilized in visual displays for the purpose of safety in the workplace and in daily life. These effects, generally known as color functionality, are divided into four classifications: visibility, legibility, conspicuity and discriminability. This article focuses on the relationship between the color functionality of color schemes used in visual displays for occupational and environmental safety and color vision deficiency (particularly congenital red-green color deficiency), a critical issue in ophthalmology, and examines the effects of color functionality on the perception of the color red in individuals with protan defects. Due to abrupt system reforms, current Japanese clinical ophthalmology finds itself in a situation where it is insufficiently prepared to handle congenital red-green color deficiencies. Indeed, occupational problems caused by color vision deficiencies have been almost completely neglected, and are an occupational safety and health concern that will need to be solved in the future. This report will present the guidelines for the color vision testing established by the British Health and Safety Executive (HSE), a pioneering example of a model meant to solve these problems. Issues relating to the creation of guidelines adapted to Japanese clinical ophthalmology will also be examined, and we will discuss ways to utilize color functionality used in visual displays for occupational and environmental safety to help manage color vision deficiency.

  5. 75 FR 33696 - Safety Zone: July Firework Display in Captain of the Port, Puget Sound AOR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-15

    ...-AA00 Safety Zone: July Firework Display in Captain of the Port, Puget Sound AOR AGENCY: Coast Guard... Captain of the Port, Puget Sound AOR. (a) Safety Zone. The following area is a designated safety zone: all..., Captain of the Port, Puget Sound. [FR Doc. 2010-14294 Filed 6-14-10; 8:45 am] BILLING CODE 9110-04-P ...

  6. 76 FR 33157 - Safety Zones; July 4th Fireworks Displays Within the Captain of the Port Miami Zone, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-08

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2011-0439] RIN 1625-AA00 Safety Zones; July 4th Fireworks Displays Within the Captain of the Port Miami Zone, FL AGENCY...-0439 Safety Zones; July 4th Fireworks Displays within the Captain of the Port Miami Zone, FL. (a...

  7. 75 FR 41376 - Safety Zone; Fireworks Display, Potomac River, Charles County, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-16

    ...-AA00 Safety Zone; Fireworks Display, Potomac River, Charles County, MD AGENCY: Coast Guard, DHS. ACTION... this temporary rule, call or e-mail Mr. Ronald L. Houck, Sector Baltimore Waterways Management Division, Coast Guard; telephone 410-576-2674, e- mail Ronald.L[email protected] . If you have questions on viewing...

  8. Real-time graphic display utility for nuclear safety applications

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Yang, S.; Huang, X.; Taylor, J.

    2006-07-01

    With the increasing interests in the nuclear energy, new nuclear power plants will be constructed and licensed, and older generation ones will be upgraded for assuring continuing operation. The tendency of adopting the latest proven technology and the fact of older parts becoming obsolete have made the upgrades imperative. One of the areas for upgrades is the older CRT display being replaced by the latest graphics displays running under modern real time operating system (RTOS) with safety graded modern computer. HFC has developed a graphic display utility (GDU) under the QNX RTOS. A standard off-the-shelf software with a long historymore » of performance in industrial applications, QNX RTOS used for safety applications has been examined via a commercial dedication process that is consistent with the regulatory guidelines. Through a commercial survey, a design life cycle and an operating history evaluation, and necessary tests dictated by the dedication plan, it is reasonably confirmed that the QNX RTOS was essentially equivalent to what would be expected in the nuclear industry. The developed GDU operates and communicates with the existing equipment through a dedicated serial channel of a flat panel controller (FPC) module. The FPC module drives a flat panel display (FPD) monitor. A touch screen mounted on the FPD serves as the normal operator interface with the FPC/FPD monitor system. The GDU can be used not only for replacing older CRTs but also in new applications. The replacement of the older CRT does not disturb the function of the existing equipment. It not only provides modern proven technology upgrade but also improves human ergonomics. The FPC, which can be used as a standalone controller running with the GDU, is an integrated hardware and software module. It operates as a single board computer within a control system, and applies primarily to the graphics display, targeting, keyboard and mouse. During normal system operation, the GDU has two sources of

  9. 33 CFR 165.1712 - Safety Zones; Annual Independence Day Firework Displays, Skagway, Haines, and Wrangell, AK.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Day Firework Displays, Skagway, Haines, and Wrangell, AK. 165.1712 Section 165.1712 Navigation and... Displays, Skagway, Haines, and Wrangell, AK. (a) Regulated areas. The following areas are permanent safety..., Haines, AK within a 300-yard radius around the fireworks launch area, centered at approximate position 59...

  10. 33 CFR 165.1712 - Safety Zones; Annual Independence Day Firework Displays, Skagway, Haines, and Wrangell, AK.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Day Firework Displays, Skagway, Haines, and Wrangell, AK. 165.1712 Section 165.1712 Navigation and... Displays, Skagway, Haines, and Wrangell, AK. (a) Regulated areas. The following areas are permanent safety..., Haines, AK within a 300-yard radius around the fireworks launch area, centered at approximate position 59...

  11. 78 FR 60220 - Safety Zone; Fireworks Display, Willamette River, Oregon City, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-01

    ... small business. If you wish to comment on actions by employees of the Coast Guard, call 1-888-REG-FAIR... Security FR Federal Register NPRM Notice of Proposed Rulemaking A. Regulatory History and Information The... 1.05-1(f) for safety and environmental purposes as described in 33 CFR part 165. Fireworks displays...

  12. 75 FR 35651 - Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-23

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG 2010-0367] Safety Zone; San Francisco Chronicle Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of regulation. SUMMARY: The Coast Guard will enforce the Independence Day...

  13. 76 FR 33641 - Safety Zone; The Pacific Grove Feast of Lanterns, Fireworks Display, Pacific Grove, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-09

    ... ensure the safety of participants and spectators from the dangers associated with the pyrotechnics... completed. Because of the dangers posed by the pyrotechnics used in these fireworks displays, the safety... property from the hazards associated with the pyrotechnics over the water. The Coast Guard has granted the...

  14. 76 FR 61263 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-04

    ... coordinates for four of the fireworks displays. This rule changes the coordinates listed for four displays to...-AA00 Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of Responsibility AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The Coast Guard is amending our regulations...

  15. 78 FR 24679 - Safety Zones; Fireworks Displays in Captain of the Port Long Island Sound Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ...-AA00 Safety Zones; Fireworks Displays in Captain of the Port Long Island Sound Zone AGENCY: Coast Guard... zones for fireworks displays within the Captain of the Port (COTP) Long Island Sound (LIS) Zone. This... Sector Long Island Sound. DATES: This rule is effective from April 27, 2013, until June 22, 2013. This...

  16. 76 FR 46626 - Safety Zone; Discovery World Private Wedding Firework Displays, Milwaukee, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-03

    ...-AA00 Safety Zone; Discovery World Private Wedding Firework Displays, Milwaukee, WI AGENCY: Coast Guard... the public interest. Background and Purpose The Discovery World Private Wedding fireworks are a City... will encompass all waters of Milwaukee Harbor in the vicinity of the Discovery World pier in Milwaukee...

  17. 77 FR 37319 - Safety Zone for Fifth Coast Guard District Fireworks Display Pasquotank River; Elizabeth City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-21

    ...-AA00 Safety Zone for Fifth Coast Guard District Fireworks Display Pasquotank River; Elizabeth City, NC... the Pasquotank River, Elizabeth City, North Carolina. The fireworks display ordinarily originated from... vessel traffic in a portion of the Pasquotank River, Elizabeth City, North Carolina, during the event...

  18. 75 FR 33690 - Safety Zone, Lights on the River Fireworks Display, Delaware River, New Hope, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-15

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 100 [Docket No. USCG-2010-0443] RIN 1625-AA00 Safety Zone, Lights on the River Fireworks Display, Delaware River, New Hope, PA AGENCY: Coast... safety zone in during the ``Lights on the River'' fireworks shows. Assistance for Small Entities Under...

  19. 76 FR 78820 - Safety Zone; City of Beaufort's Tricentennial New Year's Eve Fireworks Display, Beaufort River...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-20

    ...-AA00 Safety Zone; City of Beaufort's Tricentennial New Year's Eve Fireworks Display, Beaufort River... establishing a temporary safety zone on the Beaufort River, in Beaufort, South Carolina, during the City of... Carolina. The fireworks will be launched from a barge, which will be located on the Beaufort River. The...

  20. 77 FR 19573 - Safety Zone; Wedding Fireworks Display, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ...-AA00 Safety Zone; Wedding Fireworks Display, Boston Inner Harbor, Boston, MA AGENCY: Coast Guard, DHS... zone on the navigable waters of the Boston Inner Harbor in the vicinity of Anthony's Pier 4, Boston, MA... Boston Inner Harbor in the vicinity of Anthony's Pier 4, Boston, MA. The Captain of the Port (COTP...

  1. 78 FR 62293 - Safety Zone, Oyster Festival 30th Anniversary Fireworks Display, Oyster Bay; Oyster Bay, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-15

    ... Safety Zone, Oyster Festival 30th Anniversary Fireworks Display, Oyster Bay; Oyster Bay, NY AGENCY: Coast... zone on the navigable waters of Oyster Bay near Oyster Bay, NY for the Oyster Festival 30th Anniversary... Oyster Festival 30th Anniversary Fireworks Display is scheduled for October 19, 2013 and is one of...

  2. 77 FR 62442 - Safety Zone; Oregon City Bridge Grand Opening Fireworks Display; Willamette River, Oregon City, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-15

    ... 1625-AA00 Safety Zone; Oregon City Bridge Grand Opening Fireworks Display; Willamette River, Oregon City, OR AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the Willamette River between the Oregon City Bridge and the Interstate 205 Bridge...

  3. 76 FR 72369 - Safety Zone; Marco Island Marriott Charity Fireworks Display, Gulf of Mexico, Marco Island, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-23

    ...-AA00 Safety Zone; Marco Island Marriott Charity Fireworks Display, Gulf of Mexico, Marco Island, FL... establish a temporary safety zone on the waters of the Gulf of Mexico in the vicinity of Marco Island... reached the Facility, please enclose a stamped, self-addressed postcard or envelope. We will consider all...

  4. Determining minimal display element requirements for surface map displays

    DOT National Transportation Integrated Search

    2003-04-14

    There is a great deal of interest in developing electronic surface map displays to enhance safety and reduce incidents and incursions on or near the airport surface. There is a lack of research, however, detailing the minimal display elements require...

  5. 77 FR 36394 - Safety Zone for Fireworks Display, Potomac River, National Harbor Access Channel; Oxon Hill, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-19

    ... 1625-AA00 Safety Zone for Fireworks Display, Potomac River, National Harbor Access Channel; Oxon Hill... safety zone upon specified waters of the Potomac River. This action is necessary to provide for the... zone is intended to protect the maritime public in a portion of the Potomac River. DATES: This rule is...

  6. 76 FR 70882 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-16

    ... Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of Responsibility... published in the Federal Register on October 4, 2011, for the Safety Zones; Annual Firework Displays Within...-6323, email [email protected] . If you have questions on viewing the docket, call Renee V...

  7. 77 FR 38179 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-27

    ... Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of Responsibility... enforce the safety zones for annual firework displays in the Captain of the Port, Puget Sound area of... prohibited unless authorized by the Captain of the Port, Puget Sound or his Designated Representative. DATES...

  8. Initial development of a metric to describe the level of safety associated with piloting an aircraft with synthetic vision systems (SVS) displays

    NASA Astrophysics Data System (ADS)

    Bartolone, Anthony P.; Glaab, Louis J.; Hughes, Monica F.; Parrish, Russell V.

    2005-05-01

    Synthetic Vision Systems (SVS) displays provide pilots with a continuous view of terrain combined with integrated guidance symbology in an effort to increase situation awareness (SA) and decrease workload during operations in Instrument Meteorological Conditions (IMC). It is hypothesized that SVS displays can replicate the safety and operational flexibility of flight in Visual Meteorological Conditions (VMC), regardless of actual out-the-window (OTW) visibility or time of day. Throughout the course of recent SVS research, significant progress has been made towards evolving SVS displays as well as demonstrating their ability to increase SA compared to conventional avionics in a variety of conditions. While a substantial amount of data has been accumulated demonstrating the capabilities of SVS displays, the ability of SVS to replicate the safety and operational flexibility of VMC flight performance in all visibility conditions is unknown to any specific degree. The previous piloted simulations and flight tests have shown better SA and path precision is achievable with SVS displays without causing an increase in workload, however none of the previous SVS research attempted to fully capture the significance of SVS displays in terms of their contribution to safety or operational benefits. In order to more fully quantify the relationship of flight operations in IMC with SVS displays to conventional operations conducted in VMC, a fundamental comparison to current day general aviation (GA) flight instruments was warranted. Such a comparison could begin to establish the extent to which SVS display concepts are capable of maintaining an "equivalent level of safety" with the round dials they could one day replace, for both current and future operations. Such a comparison was the focus of the SVS-ES experiment conducted under the Aviation Safety and Security Program's (AvSSP) GA Element of the SVS Project at NASA Langley Research Center in Hampton, Virginia. A combination of

  9. 77 FR 14471 - Safety Zone; Festival of States 2012 Night Parade Fireworks Display, Tampa Bay, St. Petersburg, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-12

    ... Zone; Festival of States 2012 Night Parade Fireworks Display, Tampa Bay, St. Petersburg, FL AGENCY... safety zone on the waters of Tampa Bay in St. Petersburg, Florida during Festival of States 2012 Night... Thursday, March 22, 2012, the Festival of States 2012 Night Parade Fireworks Display is scheduled to take...

  10. 76 FR 65378 - Safety Zone; The Florida Orchestra Pops in the Park Fireworks Display, Tampa Bay, St. Petersburg, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-21

    ...-AA00 Safety Zone; The Florida Orchestra Pops in the Park Fireworks Display, Tampa Bay, St. Petersburg... temporary safety zone on the waters of Tampa Bay in the vicinity of Spa Beach in St. Petersburg, Florida..., anchoring in, or remaining within the safety zone unless authorized by the Captain of the Port St...

  11. Initial Development of a Metric to Describe the Level of Safety Associated with Piloting an Aircraft with Synthetic Vision Systems (SVS) Displays

    NASA Technical Reports Server (NTRS)

    Bartolone, Anthony P.; Glabb, Louis J.; Hughes, Monica F.; Parrish, Russell V.

    2005-01-01

    Synthetic Vision Systems (SVS) displays provide pilots with a continuous view of terrain combined with integrated guidance symbology in an effort to increase situation awareness (SA) and decrease workload during operations in Instrument Meteorological Conditions (IMC). It is hypothesized that SVS displays can replicate the safety and operational flexibility of flight in Visual Meteorological Conditions (VMC), regardless of actual out-the-window (OTW) visibility or time of day. Significant progress has been made towards evolving SVS displays as well as demonstrating their ability to increase SA compared to conventional avionics in a variety of conditions. While a substantial amount of data has been accumulated demonstrating the capabilities of SVS displays, the ability of SVS to replicate the safety and operational flexibility of VMC flight performance in all visibility conditions is unknown to any specific degree. In order to more fully quantify the relationship of flight operations in IMC with SVS displays to conventional operations conducted in VMC, a fundamental comparison to current day general aviation (GA) flight instruments was warranted. Such a comparison could begin to establish the extent to which SVS display concepts are capable of maintaining an "equivalent level of safety" with the round dials they could one day replace, for both current and future operations. A combination of subjective and objective data measures were used to quantify the relationship between selected components of safety that are associated with flying an approach. Four information display methods ranging from a "round dials" baseline through a fully integrated SVS package that includes terrain, pathway based guidance, and a strategic navigation display, were investigated in this high fidelity simulation experiment. In addition, a broad spectrum of pilots, representative of the GA population, were employed for testing in an attempt to enable greater application of the results and

  12. 75 FR 33698 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-15

    ...-AA00 Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of... of the Port (COTP), Puget Sound Area of Responsibility (AOR). When these safety zones are activated... Captain of the Port, Puget Sound or Designated Representative. DATES: This rule is effective June 15, 2010...

  13. 78 FR 36664 - Safety Zone; Fifth Coast Guard District Fireworks Display, Currituck Sound; Corolla, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-19

    ... 1625-AA00 Safety Zone; Fifth Coast Guard District Fireworks Display, Currituck Sound; Corolla, NC.... This regulation applies to only one recurring fireworks event, held adjacent to the Currituck Sound... portion of the Currituck Sound, Corolla, NC, during the event. DATES: This rule will be effective from...

  14. 78 FR 36658 - Safety Zone; Delaware River Waterfront Corp. Fireworks Display, Delaware River; Camden, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-19

    ... portion of the Delaware River from operating while a fireworks event is taking place. This temporary...-AA00 Safety Zone; Delaware River Waterfront Corp. Fireworks Display, Delaware River; Camden, NJ AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary...

  15. 77 FR 31493 - Safety Zones; Fourth of July Fireworks Displays Within the Captain of the Port Charleston Zone, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-29

    ... temporary safety zones during Fourth of July Fireworks Displays on certain navigable waterways in Hilton... below. 1. Hilton Head Island, South Carolina. All waters within a 500 yard radius around the barge from... each safety zone. All coordinates are North American Datum 1983. [[Page 31496

  16. 33 CFR 165.119 - Safety Zone; Captain of the Port Boston Fireworks display zones, Boston Harbor, Boston, MA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Boston Fireworks display zones, Boston Harbor, Boston, MA. 165.119 Section 165.119 Navigation and... zones, Boston Harbor, Boston, MA. (a) Boston Inner Harbor. The following areas are designated as safety...°02′36.5″ W (NAD 1983), located off of Long Wharf, Boston MA. (3) Fan Pier Safety Zone. All U.S...

  17. 33 CFR 165.1332 - Safety Zones; annual firework displays within the Captain of the Port, Puget Sound Area of...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... displays within the Captain of the Port, Puget Sound Area of Responsibility. 165.1332 Section 165.1332... within the Captain of the Port, Puget Sound Area of Responsibility. (a) Safety Zones. The following areas are designated safety zones: (1) All waters of Puget Sound, Washington, extending to a 450 yard radius...

  18. 33 CFR 165.1332 - Safety Zones; annual firework displays within the Captain of the Port, Puget Sound Area of...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... displays within the Captain of the Port, Puget Sound Area of Responsibility. 165.1332 Section 165.1332... within the Captain of the Port, Puget Sound Area of Responsibility. (a) Safety Zones. The following areas are designated safety zones: (1) All waters of Puget Sound, Washington, extending to a 450 yard radius...

  19. 33 CFR 165.1332 - Safety Zones; annual firework displays within the Captain of the Port, Puget Sound Area of...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... displays within the Captain of the Port, Puget Sound Area of Responsibility. 165.1332 Section 165.1332... within the Captain of the Port, Puget Sound Area of Responsibility. (a) Safety Zones. The following areas are designated safety zones: (1) All waters of Puget Sound, Washington, extending to a 450 yard radius...

  20. 33 CFR 165.1332 - Safety Zones; annual firework displays within the Captain of the Port, Puget Sound Area of...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... displays within the Captain of the Port, Puget Sound Area of Responsibility. 165.1332 Section 165.1332... within the Captain of the Port, Puget Sound Area of Responsibility. (a) Safety Zones. The following areas are designated safety zones: (1) All waters of Puget Sound, Washington, extending to a 450 yard radius...

  1. Dichroic Liquid Crystal Displays

    NASA Astrophysics Data System (ADS)

    Bahadur, Birendra

    The following sections are included: * INTRODUCTION * DICHROIC DYES * Chemical Structure * Chemical and Photochemical Stability * THEORETICAL MODELLING * DEFECTS CAUSED BY PROLONGED LIGHT IRRADIATION * CHEMICAL STRUCTURE AND PHOTOSTABILITY * OTHER PARAMETERS AFFECTING PHOTOSTABILITY * CELL PREPARATION * DICHROIC PARAMETERS AND THEIR MEASUREMENTS * Order Parameter and Dichroic Ratio Of Dyes * Absorbance, Order Parameter and Dichroic Ratio Measurements * IMPACT OF DYE STRUCTURE AND LIQUID CRYSTAL HOST ON PHYSICAL PROPERTIES OF A DICHROIC MIXTURE * Order Parameter and Dichroic Ratio * EFFECT OF LENGTH OF DICHROIC DYES ON THE ORDER PARAMETER * EFFECT OF THE BREADTH OF DYE ON THE ORDER PARAMETER * EFFECT OF THE HOST ON THE ORDER PARAMETER * TEMPERATURE VARIATION OF THE ORDER PARAMETER OF DYES IN A LIQUID CRYSTAL HOST * IMPACT OF DYE CONCENTRATION ON THE ORDER PARAMETER * Temperature Range * Viscosity * Dielectric Constant and Anisotropy * Refractive Indices and Birefringence * solubility43,153-156 * Absorption Wavelength and Auxochromic Groups * Molecular Engineering of Dichroic Dyes * OPTICAL, ELECTRO-OPTICAL AND LIFE PARAMETERS * Colour And CIE Colour space120,160-166 * CIE 1931 COLOUR SPACE * CIE 1976 CHROMATICITY DIAGRAM * CIE UNIFORM COLOUR SPACES & COLOUR DIFFERENCE FORMULAE120,160-166 * Electro-Optical Parameters120 * LUMINANCE * CONTRAST AND CONTRAST RATIO * SWITCHING SPEED * Life Parameters and Failure Modes * DICHROIC MIXTURE FORMULATION * Monochrome Mixture * Black Mixture * ACHROMATIC BLACK MIXTURE FOR HEILMEIER DISPLAYS * Effect of Illuminant on Display Colour * Colour of the Field-On State * Effect of Dye Linewidth * Optimum Centroid Wavelengths * Effect of Dye Concentration * Mixture Formulation Using More Than Three Dyes * ACHROMATIC MIXTURE FOR WHITE-TAYLOR TYPE DISPLAYS * HEILMEIER DISPLAYS * Theoretical Modelling * Threshold Characteristic * Effects of Dye Concentration on Electro-optical Parameters * Effect of Cholesteric Doping * Effect of Alignment

  2. 77 FR 31183 - Safety Zone, Temporary Change for Recurring Fireworks Display Within the Fifth Coast Guard...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-25

    ...-AA00 Safety Zone, Temporary Change for Recurring Fireworks Display Within the Fifth Coast Guard District, Pamlico River and Tar River; Washington, NC AGENCY: Coast Guard, DHS. ACTION: Temporary final... is intended to restrict vessel traffic in a portion of the Pamlico River and Tar River near...

  3. 78 FR 32219 - Safety Zone, Temporary Change for Recurring Fifth Coast Guard District Fireworks Displays, Middle...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-29

    ... 1625-AA00 Safety Zone, Temporary Change for Recurring Fifth Coast Guard District Fireworks Displays, Middle River; Baltimore County, MD AGENCY: Coast Guard, DHS. ACTION: Notice of Proposed Rulemaking. SUMMARY: The Coast Guard is proposing a temporary change to the enforcement periods and regulated areas of...

  4. 76 FR 69634 - Safety Zone; Temporary Change for Recurring Fireworks Display Within the Fifth Coast Guard...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-09

    ... position located on the east end of Bird Island, Wrightsville Beach, NC. * * * * * Dated: October 20, 2011... District, Wrightsville Beach, NC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast... recurring fireworks display event that takes place at Wrightsville Beach, NC. Safety zone regulations are...

  5. 75 FR 35649 - Safety Zone; Northern California Annual Fireworks Events, July 4th Fireworks Display

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-23

    ... Zone; Northern California Annual Fireworks Events, July 4th Fireworks Display AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of regulation. SUMMARY: The Coast Guard will enforce the Tahoe City 4th of... safety zone for the annual Tahoe City 4th of July Fireworks in 33 CFR 165.1191 on July 4, 2010, from 9 a...

  6. 78 FR 34577 - Safety Zone; Ad Club's 100th Anniversary Gala Fireworks Display, Boston Inner Harbor, Boston, MA.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ... posed by the pyrotechnics used in this fireworks display, the safety zone is necessary to provide for... would expose spectators, vessels and other property to the hazards associated with pyrotechnics used in...

  7. 78 FR 13576 - Special Local Regulations and Safety Zones; Recurring Marine Events and Fireworks Displays Within...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-28

    ... area April--2nd Saturday St. Mary's College Seahawk Specified waters of St. Mary's Sprint River... regulations by adding 15 new annual recurring marine events, fireworks displays and revising event date(s) and... provide for the safety of life on navigable waters during these events, reduce the Coast Guard's...

  8. 76 FR 37007 - Safety Zone; Stockton Ports Baseball Club Fourth of July Fireworks Display, Stockton, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... and spectators from the dangers associated with the pyrotechnics. Unauthorized persons or vessels are... the dangers posed by the pyrotechnics used in this fireworks display, the safety zone is necessary to... in the effective date of this rule would expose mariners to the dangers posed by the pyrotechnics...

  9. 78 FR 37963 - Safety Zone; Fifth Coast Guard District Fireworks Display Cape Fear River; Wilmington, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-25

    ...-AA00 Safety Zone; Fifth Coast Guard District Fireworks Display Cape Fear River; Wilmington, NC AGENCY... District. This regulation applies to only one recurring fireworks event, held adjacent to the Cape Fear... of the Cape Fear River, Wilmington, North Carolina, during the event. DATES: This rule will be...

  10. 9 CFR 392.6 - Public display.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Public display. 392.6 Section 392.6 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS PETITIONS FOR RULEMAKING § 392.6 Public display. (a) All...

  11. 9 CFR 392.6 - Public display.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Public display. 392.6 Section 392.6 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS PETITIONS FOR RULEMAKING § 392.6 Public display. (a) All rulemaking petitions filed with FSIS, along...

  12. 9 CFR 392.6 - Public display.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 2 2013-01-01 2013-01-01 false Public display. 392.6 Section 392.6 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS PETITIONS FOR RULEMAKING § 392.6 Public display. (a) All rulemaking petitions filed with FSIS, along...

  13. 9 CFR 392.6 - Public display.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 2 2014-01-01 2014-01-01 false Public display. 392.6 Section 392.6 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS PETITIONS FOR RULEMAKING § 392.6 Public display. (a) All rulemaking petitions filed with FSIS, along...

  14. 9 CFR 392.6 - Public display.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 2 2012-01-01 2012-01-01 false Public display. 392.6 Section 392.6 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS PETITIONS FOR RULEMAKING § 392.6 Public display. (a) All rulemaking petitions filed with FSIS, along...

  15. 33 CFR 165.T08-0238 - Safety Zone; Cincinnati Symphony Orchestra Fireworks Displays Ohio River, Mile 460.9-461.3...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Orchestra Fireworks Displays Ohio River, Mile 460.9-461.3, Cincinnati, OH. 165.T08-0238 Section 165.T08-0238... Fireworks Displays Ohio River, Mile 460.9-461.3, Cincinnati, OH. (a) Location. The following area is a temporary safety zone: all waters of the Ohio River, surface to bottom, from mile 460.9 to mile 461.3 on the...

  16. Effects of Different Types of Virtual Reality Display on Presence and Learning in a Safety Training Scenario.

    PubMed

    Buttussi, Fabio; Chittaro, Luca

    2018-02-01

    The increasing availability of head-mounted displays (HMDs) for home use motivates the study of the possible effects that adopting this new hardware might have on users. Moreover, while the impact of display type has been studied for different kinds of tasks, it has been scarcely explored in procedural training. Our study considered three different types of displays used by participants for training in aviation safety procedures with a serious game. The three displays were respectively representative of: (i) desktop VR (a standard desktop monitor), (ii) many setups for immersive VR used in the literature (an HMD with narrow field of view and a 3-DOF tracker), and (iii) new setups for immersive home VR (an HMD with wide field of view and 6-DOF tracker). We assessed effects on knowledge gain, and different self-reported measures (self-efficacy, engagement, presence). Unlike previous studies of display type that measured effects only immediately after the VR experience, we considered also a longer time span (2 weeks). Results indicated that the display type played a significant role in engagement and presence. The training benefits (increased knowledge and self-efficacy) were instead obtained, and maintained at two weeks, regardless of the display used. The paper discusses the implications of these results.

  17. Coastal Warning Display Program

    Science.gov Websites

    ! Boating Safety Beach Hazards Rip Currents Hypothermia Hurricanes Thunderstorms Lightning Coastal Flooding Tsunamis 406 EPIRB's National Weather Service Marine Forecasts COASTAL WARNING DISPLAY PROGRAM Marine COASTAL WARNING DISPLAY PROGRAM As of February 15, 1989, the National Weather Service retired its Coastal

  18. 77 FR 56115 - Safety Zone for Fireworks Display, Potomac River, National Harbor Access Channel; Oxon Hill, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-12

    ..., MD AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a... safety of life on navigable waters during a fireworks display launched from a floating platform located... zone is intended to protect the maritime public in a portion of the Potomac River. DATES: This rule is...

  19. 78 FR 25407 - Safety Zones; National Cherry Festival Air Show and Fireworks Display; West Grand Traverse Bay...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ...-AA00 Safety Zones; National Cherry Festival Air Show and Fireworks Display; West Grand Traverse Bay... National Cherry Festival in Traverse City, MI will host an air show over the West Arm of Grand Traverse Bay. At the conclusion of the National Cherry Festival on July 6, 2013, fireworks will be launched in...

  20. 75 FR 38415 - Safety Zones; Multiple Firework Displays in Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-02

    ...-AA00 Safety Zones; Multiple Firework Displays in Captain of the Port, Puget Sound Area of... sites being held in the Captain of the Port, Puget Sound area of responsibility (AOR). This action is... the area for a short time and vessels can still transit in the majority of Puget Sound during the...

  1. 33 CFR 165.T08-0080 - Safety Zone; Cincinnati Reds Fireworks Displays Ohio River, Mile 470.1-470.4, Cincinnati, OH.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Fireworks Displays Ohio River, Mile 470.1-470.4, Cincinnati, OH. 165.T08-0080 Section 165.T08-0080... Displays Ohio River, Mile 470.1-470.4, Cincinnati, OH. (a) Location. The following area is a temporary safety zone: all waters of the Ohio River, surface to bottom, from mile 470.1 to mile 470.4 on the Ohio...

  2. Empirical estimation of school siting parameter towards improving children's safety

    NASA Astrophysics Data System (ADS)

    Aziz, I. S.; Yusoff, Z. M.; Rasam, A. R. A.; Rahman, A. N. N. A.; Omar, D.

    2014-02-01

    Distance from school to home is a key determination in ensuring the safety of hildren. School siting parameters are made to make sure that a particular school is located in a safe environment. School siting parameters are made by Department of Town and Country Planning Malaysia (DTCP) and latest review was on June 2012. These school siting parameters are crucially important as they can affect the safety, school reputation, and not to mention the perception of the pupil and parents of the school. There have been many studies to review school siting parameters since these change in conjunction with this ever-changing world. In this study, the focus is the impact of school siting parameter on people with low income that live in the urban area, specifically in Johor Bahru, Malaysia. In achieving that, this study will use two methods which are on site and off site. The on site method is to give questionnaires to people and off site is to use Geographic Information System (GIS) and Statistical Product and Service Solutions (SPSS), to analyse the results obtained from the questionnaire. The output is a maps of suitable safe distance from school to house. The results of this study will be useful to people with low income as their children tend to walk to school rather than use transportation.

  3. 33 CFR 165.161 - Safety zones: Coast Guard Captain of the Port New York annual fireworks displays.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of the Port New York annual fireworks displays. 165.161 Section 165.161 Navigation and Navigable... Coast Guard District § 165.161 Safety zones: Coast Guard Captain of the Port New York annual fireworks... from 6 p.m. (e.s.t.) to 1 a.m. (e.s.t.) on the first Monday in October. (6) Seaport New Year's Eve...

  4. 75 FR 43821 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-27

    ... Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of Responsibility... Port, Puget Sound or Designated Representative. DATES: This safety zone will be enforced from 5 p.m. on... of the Port, Puget Sound Area of Responsibility. A previous notice of enforcement, published on July...

  5. 75 FR 8566 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-25

    ...-AA00 Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of... at various locations the Captain of the Port, Puget Sound Area of Responsibility (AOR). When these... prohibited unless authorized by the Captain of the Port, Puget Sound or Designated Representative. DATES...

  6. 33 CFR 165.160 - Safety Zones; fireworks displays and swim events in Coast Guard Captain of the Port New York Zone.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., Hempstead Harbor Safety Zone • Launch site: A barge located in approximate position 40°51′58″ N 073°39′34″ W... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zones; fireworks displays and swim events in Coast Guard Captain of the Port New York Zone. 165.160 Section 165.160 Navigation...

  7. 33 CFR 165.160 - Safety Zones; fireworks displays and swim events in Coast Guard Captain of the Port New York Zone.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., Hempstead Harbor Safety Zone • Launch site: A barge located in approximate position 40°51′58″ N 073°39′34″ W... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zones; fireworks displays and swim events in Coast Guard Captain of the Port New York Zone. 165.160 Section 165.160 Navigation...

  8. 33 CFR 165.160 - Safety Zones; fireworks displays and swim events in Coast Guard Captain of the Port New York Zone.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., Hempstead Harbor Safety Zone • Launch site: A barge located in approximate position 40°51′58″ N 073°39′34″ W... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zones; fireworks displays and swim events in Coast Guard Captain of the Port New York Zone. 165.160 Section 165.160 Navigation...

  9. 75 FR 26648 - Safety Zones; May Fireworks Displays Within the Captain of the Port Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-12

    ... traffic is necessary to protect life, property and the environment. Discussion of Rule The U.S. Coast... Responsibility (AOR) AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The U.S Coast Guard is... necessary to provide for the safety of life on navigable waters during the fireworks displays. Entry into...

  10. Evaluation of Nurses' Acceptance of Screen Display Methods with Temporarily Non-Display for Privacy Protection.

    PubMed

    Niimi, Yukari; Ota, Katsumasa; Ikegami, Chikako

    2018-01-01

    The purpose of this study was to explore nurses' acceptance of a screen display method that temporarily hides patient information for privacy protection. Using a questionnaire, we asked nurses to evaluate the display method from the viewpoints of safety and efficiency with respect to 22 personal information items. The nurses were favorably interested in introducing the display method into their hospital system; however, their acceptance varied.

  11. Can Effective Synthetic Vision System Displays be Implemented on Limited Size Display Spaces?

    NASA Technical Reports Server (NTRS)

    Comstock, J. Raymond, Jr.; Glaab, Lou J.; Prinzel, Lance J.; Elliott, Dawn M.

    2004-01-01

    The Synthetic Vision Systems (SVS) element of the NASA Aviation Safety Program is striving to eliminate poor visibility as a causal factor in aircraft accidents, and to enhance operational capabilities of all types or aircraft. To accomplish these safety and situation awareness improvements, the SVS concepts are designed to provide a clear view of the world ahead through the display of computer generated imagery derived from an onboard database of terrain, obstacle and airport information. An important issue for the SVS concept is whether useful and effective Synthetic Vision System (SVS) displays can be implemented on limited size display spaces as would be required to implement this technology on older aircraft with physically smaller instrument spaces. In this study, prototype SVS displays were put on the following display sizes: (a) size "A' (e.g. 757 EADI), (b) form factor "D" (e.g. 777 PFD), and (c) new size "X" (Rectangular flat-panel, approximately 20 x 25 cm). Testing was conducted in a high-resolution graphics simulation facility at NASA Langley Research Center. Specific issues under test included the display size as noted above, the field-of-view (FOV) to be shown on the display and directly related to FOV is the degree of minification of the displayed image or picture. Using simulated approaches with display size and FOV conditions held constant no significant differences by these factors were found. Preferred FOV based on performance was determined by using approaches during which pilots could select FOV. Mean preference ratings for FOV were in the following order: (1) 30 deg., (2) Unity, (3) 60 deg., and (4) 90 deg., and held true for all display sizes tested. Limitations of the present study and future research directions are discussed.

  12. 75 FR 49847 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-16

    ... Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of Responsibility... enforce the fireworks safety zone in Possession Sound from 5 p.m. on September 11, 2010 through 1 a.m. on... Captain of the Port, Puget Sound or Designated Representative. DATES: The regulations in 33 CFR 165.1332...

  13. Effects of chilled-then-frozen storage (up to 52weeks) on lamb M. longissimus lumborum quality and safety parameters.

    PubMed

    Coombs, Cassius E O; Holman, Benjamin W B; Collins, Damian; Friend, Michael A; Hopkins, David L

    2017-12-01

    This study evaluated the effect of chilled followed by frozen storage on lamb quality and safety parameters. Experimental (n=360) M. longissimus lumborum (LL) were randomly sampled from the boning room of a commercial Australian abattoir, at 24 h post-mortem, and assigned to five chilled storage periods (0, 2, 4, 6 and 8 weeks) and six subsequent frozen storage periods (0, 4, 8, 12, 24 and 52 weeks). Upon completion of each storage treatment combination, corresponding LL were sub-sectioned and analysed for colour stability (0, 1, 2 and 3 days), shear force, fluid losses (purge, thaw and cooking losses), intramuscular fat content, sarcomere length, water activity and microbial load (lactic acid bacteria, Enterobacteriaceae sp., Brochothrix thermosphacta, Clostridium perfringens and Escherichia coli). LL stored chilled for 2-4 weeks prior to freezing presented superior results for shear force, display colour and low levels of spoilage microbes, correlating with good eating quality and safety following more than one year of frozen storage. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  14. 33 CFR 165.T11-630 - Safety zone; Giants Enterprises Fireworks Display, San Francisco Bay, San Francisco, CA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Francisco Bay, San Francisco, CA. (a) Location. This temporary safety zone is established in the navigable waters of the San Francisco Bay near Pier 48 in San Francisco, CA as depicted in National Oceanic and... Fireworks Display, San Francisco Bay, San Francisco, CA. 165.T11-630 Section 165.T11-630 Navigation and...

  15. Virtual acoustics displays

    NASA Astrophysics Data System (ADS)

    Wenzel, Elizabeth M.; Fisher, Scott S.; Stone, Philip K.; Foster, Scott H.

    1991-03-01

    The real time acoustic display capabilities are described which were developed for the Virtual Environment Workstation (VIEW) Project at NASA-Ames. The acoustic display is capable of generating localized acoustic cues in real time over headphones. An auditory symbology, a related collection of representational auditory 'objects' or 'icons', can be designed using ACE (Auditory Cue Editor), which links both discrete and continuously varying acoustic parameters with information or events in the display. During a given display scenario, the symbology can be dynamically coordinated in real time with 3-D visual objects, speech, and gestural displays. The types of displays feasible with the system range from simple warnings and alarms to the acoustic representation of multidimensional data or events.

  16. Virtual acoustics displays

    NASA Technical Reports Server (NTRS)

    Wenzel, Elizabeth M.; Fisher, Scott S.; Stone, Philip K.; Foster, Scott H.

    1991-01-01

    The real time acoustic display capabilities are described which were developed for the Virtual Environment Workstation (VIEW) Project at NASA-Ames. The acoustic display is capable of generating localized acoustic cues in real time over headphones. An auditory symbology, a related collection of representational auditory 'objects' or 'icons', can be designed using ACE (Auditory Cue Editor), which links both discrete and continuously varying acoustic parameters with information or events in the display. During a given display scenario, the symbology can be dynamically coordinated in real time with 3-D visual objects, speech, and gestural displays. The types of displays feasible with the system range from simple warnings and alarms to the acoustic representation of multidimensional data or events.

  17. Performance Comparison Between a Head-Worn Display System and a Head-Up Display for Low Visibility Commercial Operations

    NASA Technical Reports Server (NTRS)

    Arthur, Jarvis J., III; Prinzel, Lawrence J., III; Barnes, James R.; Williams, Steven P.; Jones, Denise R.; Harrison, Stephanie J.; Bailey, Randall E.

    2014-01-01

    Research, development, test, and evaluation of flight deck interface technologies is being conducted by NASA to proactively identify, develop, and mature tools, methods, and technologies for improving overall aircraft safety of new and legacy vehicles operating in Next Generation Air Transportation System (NextGen). Under the Vehicle Systems Safety Technologies (VSST) project in the Aviation Safety Program, one specific area of research is the use of small Head-Worn Displays (HWDs) as an equivalent display to a Head-Up Display (HUD). Title 14 of the US Code of Federal Regulations (CFR) 91.175 describes a possible operational credit which can be obtained with airplane equipage of a HUD or an "equivalent" display combined with Enhanced Vision (EV). If successful, a HWD may provide the same safety and operational benefits as current HUD-equipped aircraft but for significantly more aircraft in which HUD installation is neither practical nor possible. A simulation experiment was conducted to evaluate if the HWD, coupled with a head-tracker, can provide an equivalent display to a HUD. Comparative testing was performed in the Research Flight Deck (RFD) Cockpit Motion Facility (CMF) full mission, motion-based simulator at NASA Langley. Twelve airline crews conducted approach and landing, taxi, and departure operations during low visibility operations (1000' Runway Visual Range (RVR), 300' RVR) at Memphis International Airport (Federal Aviation Administration (FAA) identifier: KMEM). The results showed that there were no statistical differences in the crews performance in terms of touchdown and takeoff. Further, there were no statistical differences between the HUD and HWD in pilots' responses to questionnaires.

  18. 76 FR 77125 - Safety Zone; Sausalito Yacht Club's Annual Lighted Boat Parade and Fireworks Display, Sausalito, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-12

    ..., pyrotechnics will be loaded onto a barge at Pier 50 near position 37[deg]46'28'' N, 122[deg]23'06'' W (NAD 83... position 37[deg]51'30.92'' N, 122[deg]28'27.97'' W (NAD 83). The temporary safety zone will extend 100 feet... Pier 50 to position 37[deg]51'30.92'' N, 122[deg]28'27.97'' W (NAD 83). The fireworks display is...

  19. Engine monitoring display study

    NASA Technical Reports Server (NTRS)

    Hornsby, Mary E.

    1992-01-01

    The current study is part of a larger NASA effort to develop displays for an engine-monitoring system to enable the crew to monitor engine parameter trends more effectively. The objective was to evaluate the operational utility of adding three types of information to the basic Boeing Engine Indicating and Crew Alerting System (EICAS) display formats: alphanumeric alerting messages for engine parameters whose values exceed caution or warning limits; alphanumeric messages to monitor engine parameters that deviate from expected values; and a graphic depiction of the range of expected values for current conditions. Ten training and line pilots each flew 15 simulated flight scenarios with five variants of the basic EICAS format; these variants included different combinations of the added information. The pilots detected engine problems more quickly when engine alerting messages were included in the display; adding a graphic depiction of the range of expected values did not affect detection speed. The pilots rated both types of alphanumeric messages (alert and monitor parameter) as more useful and easier to interpret than the graphic depiction. Integrating engine parameter messages into the EICAS alerting system appears to be both useful and preferred.

  20. Pilot-Configurable Information on a Display Unit

    NASA Technical Reports Server (NTRS)

    Bell, Charles Frederick (Inventor); Ametsitsi, Julian (Inventor); Che, Tan Nhat (Inventor); Shafaat, Syed Tahir (Inventor)

    2017-01-01

    A small thin display unit that can be installed in the flight deck for displaying only flight crew-selected tactical information needed for the task at hand. The flight crew can select the tactical information to be displayed by means of any conventional user interface. Whenever the flight crew selects tactical information for processes the request, including periodically retrieving measured current values or computing current values for the requested tactical parameters and returning those current tactical parameter values to the display unit for display.

  1. 76 FR 55566 - Safety Zones; Fireworks Displays and Surfing Events in Captain of the Port Long Island Sound Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-08

    ...-AA00 Safety Zones; Fireworks Displays and Surfing Events in Captain of the Port Long Island Sound Zone... zones for marine events within the Captain of the Port (COTP) Long Island Sound Zone for a surfing event... unless authorized by the COTP Sector Long Island Sound. DATES: This rule is effective in the CFR on...

  2. Display system for imaging scientific telemetric information

    NASA Technical Reports Server (NTRS)

    Zabiyakin, G. I.; Rykovanov, S. N.

    1979-01-01

    A system for imaging scientific telemetric information, based on the M-6000 minicomputer and the SIGD graphic display, is described. Two dimensional graphic display of telemetric information and interaction with the computer, in analysis and processing of telemetric parameters displayed on the screen is provided. The running parameter information output method is presented. User capabilities in the analysis and processing of telemetric information imaged on the display screen and the user language are discussed and illustrated.

  3. 16 CFR 1033.2 - Display of control numbers.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Display of control numbers. 1033.2 Section 1033.2 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL DISPLAY OF CONTROL NUMBERS FOR COLLECTION OF INFORMATION REQUIREMENTS UNDER THE PAPERWORK REDUCTION ACT § 1033.2 Display of control numbers...

  4. Assessment of minimum permissible geometrical parameters of a near-to-eye display.

    PubMed

    Valyukh, Sergiy; Slobodyanyuk, Oleksandr

    2015-07-20

    Light weight and small dimensions are some of the most important characteristics of near-to-eye displays (NEDs). These displays consist of two basic parts: a microdisplay for generating an image and supplementary optics in order to see the image. Nowadays, the pixel size of microdisplays may be less than 4 μm, which makes the supplementary optics the major factor in defining restrictions on a NED dimensions or at least on the distance between the microdisplay and the eye. The goal of the present work is to find answers to the following two questions: how small this distance can be in principle and what is the microdisplay maximum resolution that stays effective to see through the supplementary optics placed in immediate vicinity of the eye. To explore the first question, we consider an aberration-free magnifier, which is the initial stage in elaboration of a real optical system. In this case, the paraxial approximation and the transfer matrix method are ideal tools for simulation of light propagation from the microdisplay through the magnifier and the human eye's optical system to the retina. The human eye is considered according to the Gullstrand model. Parameters of the magnifier, its location with respect to the eye and the microdisplay, and the depth of field, which can be interpreted as the tolerance of the microdisplay position, are determined and discussed. The second question related to the microdisplay maximum resolution is investigated by using the principles of wave optics.

  5. 76 FR 48718 - Safety Zones; August Fireworks Displays and Swim Events in the Captain of the Port New York Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-09

    ... AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing four... fireworks displays and swim events. This action is necessary to provide for the safety of life on navigable... prohibited unless authorized by the COTP New York. DATES: This rule is effective in the CFR on August 9, 2011...

  6. KENNEDY SPACE CENTER, FLA. - Employees file around table displays under a tent near the Vehicle Assembly Building. Many vendors displayed their products during the Spaceport Super Safety and Health Day at KSC, an annual event dedicated to reinforcing safe and healthful behaviors in the workforce.

    NASA Image and Video Library

    2003-10-15

    KENNEDY SPACE CENTER, FLA. - Employees file around table displays under a tent near the Vehicle Assembly Building. Many vendors displayed their products during the Spaceport Super Safety and Health Day at KSC, an annual event dedicated to reinforcing safe and healthful behaviors in the workforce.

  7. The use of interpractive graphic displays for interpretation of surface design parameters

    NASA Technical Reports Server (NTRS)

    Talcott, N. A., Jr.

    1981-01-01

    An interactive computer graphics technique known as the Graphic Display Data method has been developed to provide a convenient means for rapidly interpreting large amounts of surface design data. The display technique should prove valuable in such disciplines as aerodynamic analysis, structural analysis, and experimental data analysis. To demonstrate the system's features, an example is presented of the Graphic Data Display method used as an interpretive tool for radiation equilibrium temperature distributions over the surface of an aerodynamic vehicle. Color graphic displays were also examined as a logical extension of the technique to improve its clarity and to allow the presentation of greater detail in a single display.

  8. Technological and safety properties display biodiversity among enterococci isolated from two Egyptian cheeses, "Ras" and "Domiati".

    PubMed

    Malek, Reine; El-Attar, Aisha; Mohamed, Mariam; Anwar, Shimaa; El-Soda, Morsi; Béal, Catherine

    2012-02-15

    The technological and safety properties of 35 indigenous strains of Enterococcus faecium isolated from two Egyptian cheeses were characterised in order to determine their ability for rational manufacture of diversified and typical dairy products in the Middle East. A great diversity was observed within the 35 strains on the basis of their technological properties. A statistical analysis made it possible to distribute the 35 strains of E. faecium into different groups. Three groups were identified in terms of their acidification activity, measured by the Cinac system: a group of strains that quickly acidified milk, a second that moderately acidified milk, and a last cluster that revealed weak acidification activity. On the basis of texturing properties that were evaluated using a texturometer and a viscometer, a cluster of strains produced viscous and firm gels, a second cluster included fairly viscous, firm and cohesive gels, and a last group generated slightly viscous, but firm and very cohesive gels. By considering the aroma profiles that were determined by gas chromatography coupled with mass spectrometry, four clusters were identified. One cluster displayed a high dimethyl disulfide level, a second group of strains was highly aromatic, a third cluster led to typical "lactic" products, and the last cluster made it possible to obtain low aromatic products. None of the 35 strains proved to be β-haemolytic on the basis of the characterisation of their safety properties. The resistance to 20 antibiotics was assessed by the disc diffusion method. The 35 isolates were sensitive to 12 antibiotics, and among them, one isolate was resistant to only two antibiotics (nalixidic acid and streptomycin). The resistance to eight antibiotics was strain-dependant. Finally, this study demonstrates that some indigenous strains of E. faecium displayed interesting technological properties for cheese manufacture, together with good safety characteristics. They could be useful for the

  9. 33 CFR 181.29 - Hull identification number display.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Hull identification number... SECURITY (CONTINUED) BOATING SAFETY MANUFACTURER REQUIREMENTS Identification of Boats § 181.29 Hull identification number display. Two identical hull identification numbers are required to be displayed on each...

  10. Display system replacement baseline research report.

    DOT National Transportation Integrated Search

    2000-12-01

    This report provides baseline measurements on the Display System Replacement (DSR). These measurements followed six constructs: : safety, capacity, performance, workload, usability, and simulation fidelity. To collect these measurements, human factor...

  11. A Human Factors Framework for Payload Display Design

    NASA Technical Reports Server (NTRS)

    Dunn, Mariea C.; Hutchinson, Sonya L.

    1998-01-01

    During missions to space, one charge of the astronaut crew is to conduct research experiments. These experiments, referred to as payloads, typically are controlled by computers. Crewmembers interact with payload computers by using visual interfaces or displays. To enhance the safety, productivity, and efficiency of crewmember interaction with payload displays, particular attention must be paid to the usability of these displays. Enhancing display usability requires adoption of a design process that incorporates human factors engineering principles at each stage. This paper presents a proposed framework for incorporating human factors engineering principles into the payload display design process.

  12. Head-Worn Displays for NextGen

    NASA Technical Reports Server (NTRS)

    Bailey, Randall E.; Shelton, Kevin J.; Arthur, J. J.

    2011-01-01

    The operating concepts emerging under the Next Generation air transportation system (NextGen) require new technology and procedures - not only on the ground-side - but also on the flight deck. Flight deck display and decision support technologies are specifically targeted to overcome aircraft safety barriers that might otherwise constrain the full realization of NextGen. One such technology is the very lightweight, unobtrusive head-worn display (HWD). HWDs with an integrated head-tracking system are being researched as they offer significant potential benefit under emerging NextGen operational concepts. Two areas of benefit for NextGen are defined. First, the HWD may be designed to be equivalent to the Head-Up Display (HUD) using Virtual HUD concepts. As such, these operational credits may be provided to significantly more aircraft for which HUD installation is neither practical nor possible. Second, the HWD provides unique display capabilities, such as an unlimited field-of-regard. These capabilities may be integral to emerging NextGen operational concepts, eliminating safety issues which might otherwise constrain the full realization of NextGen. The paper details recent research results, current HWD technology limitations, and future technology development needed to realize HWDs as a enabling technology for NextGen.

  13. X-33 Telemetry Best Source Selection, Processing, Display, and Simulation Model Comparison

    NASA Technical Reports Server (NTRS)

    Burkes, Darryl A.

    1998-01-01

    The X-33 program requires the use of multiple telemetry ground stations to cover the launch, ascent, transition, descent, and approach phases for the flights from Edwards AFB to landings at Dugway Proving Grounds, UT and Malmstrom AFB, MT. This paper will discuss the X-33 telemetry requirements and design, including information on fixed and mobile telemetry systems, best source selection, and support for Range Safety Officers. A best source selection system will be utilized to automatically determine the best source based on the frame synchronization status of the incoming telemetry streams. These systems will be used to select the best source at the landing sites and at NASA Dryden Flight Research Center to determine the overall best source between the launch site, intermediate sites, and landing site sources. The best source at the landing sites will be decommutated to display critical flight safety parameters for the Range Safety Officers. The overall best source will be sent to the Lockheed Martin's Operational Control Center at Edwards AFB for performance monitoring by X-33 program personnel and for monitoring of critical flight safety parameters by the primary Range Safety Officer. The real-time telemetry data (received signal strength, etc.) from each of the primary ground stations will also be compared during each nu'ssion with simulation data generated using the Dynamic Ground Station Analysis software program. An overall assessment of the accuracy of the model will occur after each mission. Acknowledgment: The work described in this paper was NASA supported through cooperative agreement NCC8-115 with Lockheed Martin Skunk Works.

  14. Neutronic safety parameters and transient analyses for Poland's MARIA research reactor.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Bretscher, M. M.; Hanan, N. A.; Matos, J. E.

    1999-09-27

    Reactor kinetic parameters, reactivity feedback coefficients, and control rod reactivity worths have been calculated for the MARIA Research Reactor (Swierk, Poland) for M6-type fuel assemblies with {sup 235}U enrichments of 80% and 19.7%. Kinetic parameters were evaluated for family-dependent effective delayed neutron fractions, decay constants, and prompt neutron lifetimes and neutron generation times. Reactivity feedback coefficients were determined for fuel Doppler coefficients, coolant (H{sub 2}O) void and temperature coefficients, and for in-core and ex-core beryllium temperature coefficients. Total and differential control rod worths and safety rod worths were calculated for each fuel type. These parameters were used to calculate genericmore » transients for fast and slow reactivity insertions with both HEU and LEU fuels. The analyses show that the HEU and LEU cores have very similar responses to these transients.« less

  15. 33 CFR 173.27 - Numbers: Display; size; color.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Numbers: Display; size; color... (CONTINUED) BOATING SAFETY VESSEL NUMBERING AND CASUALTY AND ACCIDENT REPORTING Numbering § 173.27 Numbers: Display; size; color. (a) Each number required by § 173.15 must: (1) Be painted on or permanently attached...

  16. 33 CFR 173.27 - Numbers: Display; size; color.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Numbers: Display; size; color... (CONTINUED) BOATING SAFETY VESSEL NUMBERING AND CASUALTY AND ACCIDENT REPORTING Numbering § 173.27 Numbers: Display; size; color. (a) Each number required by § 173.15 must: (1) Be painted on or permanently attached...

  17. Raster graphics display library

    NASA Technical Reports Server (NTRS)

    Grimsrud, Anders; Stephenson, Michael B.

    1987-01-01

    The Raster Graphics Display Library (RGDL) is a high level subroutine package that give the advanced raster graphics display capabilities needed. The RGDL uses FORTRAN source code routines to build subroutines modular enough to use as stand-alone routines in a black box type of environment. Six examples are presented which will teach the use of RGDL in the fastest, most complete way possible. Routines within the display library that are used to produce raster graphics are presented in alphabetical order, each on a separate page. Each user-callable routine is described by function and calling parameters. All common blocks that are used in the display library are listed and the use of each variable within each common block is discussed. A reference on the include files that are necessary to compile the display library is contained. Each include file and its purpose are listed. The link map for MOVIE.BYU version 6, a general purpose computer graphics display system that uses RGDL software, is also contained.

  18. Military display market segment: avionics (Invited Paper)

    NASA Astrophysics Data System (ADS)

    Desjardins, Daniel D.; Hopper, Darrel G.

    2005-05-01

    The military display market is analyzed in terms of one of its segments: avionics. Requirements are summarized for 13 technology-driving parameters for direct-view and virtual-view displays in cockpits and cabins. Technical specifications are discussed for selected programs. Avionics stresses available technology and usually requires custom display designs.

  19. Display device for indicating the value of a parameter in a process plant

    DOEpatents

    Scarola, Kenneth; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    1993-01-01

    An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

  20. 77 FR 15260 - Safety Zone; San Francisco Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... Zone; San Francisco Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION: Notice of... Fireworks Display in the Captain of the Port, San Francisco area of responsibility during the dates and... hazards associated with the fireworks display. During the enforcement period, unauthorized persons or...

  1. Information Display System for Atypical Flight Phase

    NASA Technical Reports Server (NTRS)

    Statler, Irving C. (Inventor); Ferryman, Thomas A. (Inventor); Amidan, Brett G. (Inventor); Whitney, Paul D. (Inventor); White, Amanda M. (Inventor); Willse, Alan R. (Inventor); Cooley, Scott K. (Inventor); Jay, Joseph Griffith (Inventor); Lawrence, Robert E. (Inventor); Mosbrucker, Chris J. (Inventor); hide

    2007-01-01

    Method and system for displaying information on one or more aircraft flights, where at least one flight is determined to have at least one atypical flight phase according to specified criteria. A flight parameter trace for an atypical phase is displayed and compared graphically with a group of traces, for the corresponding flight phase and corresponding flight parameter, for flights that do not manifest atypicality in that phase.

  2. 40 CFR 170.135 - Posted pesticide safety information.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., pesticide safety information. (b) Pesticide safety poster. A safety poster must be displayed that conveys..., and telephone number of the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The agricultural employer shall inform workers promptly of any...

  3. 40 CFR 170.135 - Posted pesticide safety information.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., pesticide safety information. (b) Pesticide safety poster. A safety poster must be displayed that conveys..., and telephone number of the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The agricultural employer shall inform workers promptly of any...

  4. 40 CFR 170.135 - Posted pesticide safety information.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., pesticide safety information. (b) Pesticide safety poster. A safety poster must be displayed that conveys..., and telephone number of the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The agricultural employer shall inform workers promptly of any...

  5. 40 CFR 170.135 - Posted pesticide safety information.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., pesticide safety information. (b) Pesticide safety poster. A safety poster must be displayed that conveys..., and telephone number of the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The agricultural employer shall inform workers promptly of any...

  6. 40 CFR 170.135 - Posted pesticide safety information.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., pesticide safety information. (b) Pesticide safety poster. A safety poster must be displayed that conveys..., and telephone number of the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The agricultural employer shall inform workers promptly of any...

  7. A high-fidelity Monte Carlo evaluation of CANDU-6 safety parameters

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kim, Y.; Hartanto, D.

    2012-07-01

    Important safety parameters such as the fuel temperature coefficient (FTC) and the power coefficient of reactivity (PCR) of the CANDU-6 (CANada Deuterium Uranium) reactor have been evaluated by using a modified MCNPX code. For accurate analysis of the parameters, the DBRC (Doppler Broadening Rejection Correction) scheme was implemented in MCNPX in order to account for the thermal motion of the heavy uranium nucleus in the neutron-U scattering reactions. In this work, a standard fuel lattice has been modeled and the fuel is depleted by using the MCNPX and the FTC value is evaluated for several burnup points including the mid-burnupmore » representing a near-equilibrium core. The Doppler effect has been evaluated by using several cross section libraries such as ENDF/B-VI, ENDF/B-VII, JEFF, JENDLE. The PCR value is also evaluated at mid-burnup conditions to characterize safety features of equilibrium CANDU-6 reactor. To improve the reliability of the Monte Carlo calculations, huge number of neutron histories are considered in this work and the standard deviation of the k-inf values is only 0.5{approx}1 pcm. It has been found that the FTC is significantly enhanced by accounting for the Doppler broadening of scattering resonance and the PCR are clearly improved. (authors)« less

  8. 75 FR 59963 - Safety Zone: Monte Foundation Firework Display, Monterey, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-29

    ... and spectators from the dangers associated with the pyrotechnics. Unauthorized persons and vessels are... be completed. Because of the dangers posed by the pyrotechnics used in this fireworks display, the... fireworks launch site during loading of the pyrotechnics, and during the fireworks display. This restricted...

  9. 75 FR 35651 - Safety Zone, Long Island Sound Annual Fireworks Displays

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-23

    ... Zone, Long Island Sound Annual Fireworks Displays AGENCY: Coast Guard, DHS. ACTION: Notice of... thirteen fireworks displays taking place throughout the Sector Long Island Sound Captain of the Port Zone... Sector Long Island Sound (203) 468 4454 [email protected] . SUPPLEMENTARY INFORMATION: The Coast...

  10. Effects of expected-value information and display format on recognition of aircraft subsystem abnormalities

    NASA Technical Reports Server (NTRS)

    Palmer, Michael T.; Abbott, Kathy H.

    1994-01-01

    This study identifies improved methods to present system parameter information for detecting abnormal conditions and to identify system status. Two workstation experiments were conducted. The first experiment determined if including expected-value-range information in traditional parameter display formats affected subject performance. The second experiment determined if using a nontraditional parameter display format, which presented relative deviation from expected value, was better than traditional formats with expected-value ranges included. The inclusion of expected-value-range information onto traditional parameter formats was found to have essentially no effect. However, subjective results indicated support for including this information. The nontraditional column deviation parameter display format resulted in significantly fewer errors compared with traditional formats with expected-value-ranges included. In addition, error rates for the column deviation parameter display format remained stable as the scenario complexity increased, whereas error rates for the traditional parameter display formats with expected-value ranges increased. Subjective results also indicated that the subjects preferred this new format and thought that their performance was better with it. The column deviation parameter display format is recommended for display applications that require rapid recognition of out-of-tolerance conditions, especially for a large number of parameters.

  11. Display-And-Alarm Circuit For Accelerometer

    NASA Technical Reports Server (NTRS)

    Bozeman, Richard J., Jr.

    1995-01-01

    Compact accelerometer assembly consists of commercial accelerometer retrofit with display-and-alarm circuit. Provides simple means for technician attending machine to monitor vibrations. Also simpifies automatic safety shutdown by providing local alarm or shutdown signal when vibration exceeds preset level.

  12. 40 CFR 170.235 - Posted pesticide safety information.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... (b) Pesticide safety poster. A safety poster must be displayed that conveys, at a minimum, the... the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The handler employer shall inform handlers promptly of any change to the information...

  13. 40 CFR 170.235 - Posted pesticide safety information.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    .... (b) Pesticide safety poster. A safety poster must be displayed that conveys, at a minimum, the... the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The handler employer shall inform handlers promptly of any change to the information...

  14. 40 CFR 170.235 - Posted pesticide safety information.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... (b) Pesticide safety poster. A safety poster must be displayed that conveys, at a minimum, the... the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The handler employer shall inform handlers promptly of any change to the information...

  15. 40 CFR 170.235 - Posted pesticide safety information.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    .... (b) Pesticide safety poster. A safety poster must be displayed that conveys, at a minimum, the... the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The handler employer shall inform handlers promptly of any change to the information...

  16. 40 CFR 170.235 - Posted pesticide safety information.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    .... (b) Pesticide safety poster. A safety poster must be displayed that conveys, at a minimum, the... the nearest emergency medical care facility shall be on the safety poster or displayed close to the safety poster. (2) The handler employer shall inform handlers promptly of any change to the information...

  17. Holographic display system for restoration of sight to the blind

    PubMed Central

    Goetz, G A; Mandel, Y; Manivanh, R; Palanker, D V; Čižmár, T

    2013-01-01

    Objective We present a holographic near-the-eye display system enabling optical approaches for sight restoration to the blind, such as photovoltaic retinal prosthesis, optogenetic and other photoactivation techniques. We compare it with conventional LCD or DLP-based displays in terms of image quality, field of view, optical efficiency and safety. Approach We detail the optical configuration of the holographic display system and its characterization using a phase-only spatial light modulator. Main results We describe approaches to controlling the zero diffraction order and speckle related issues in holographic display systems and assess the image quality of such systems. We show that holographic techniques offer significant advantages in terms of peak irradiance and power efficiency, and enable designs that are inherently safer than LCD or DLP-based systems. We demonstrate the performance of our holographic display system in the assessment of cortical response to alternating gratings projected onto the retinas of rats. Significance We address the issues associated with the design of high brightness, near-the-eye display systems and propose solutions to the efficiency and safety challenges with an optical design which could be miniaturized and mounted onto goggles. PMID:24045579

  18. 3D augmented reality with integral imaging display

    NASA Astrophysics Data System (ADS)

    Shen, Xin; Hua, Hong; Javidi, Bahram

    2016-06-01

    In this paper, a three-dimensional (3D) integral imaging display for augmented reality is presented. By implementing the pseudoscopic-to-orthoscopic conversion method, elemental image arrays with different capturing parameters can be transferred into the identical format for 3D display. With the proposed merging algorithm, a new set of elemental images for augmented reality display is generated. The newly generated elemental images contain both the virtual objects and real world scene with desired depth information and transparency parameters. The experimental results indicate the feasibility of the proposed 3D augmented reality with integral imaging.

  19. Flight Simulator Evaluation of Display Media Devices for Synthetic Vision Concepts

    NASA Technical Reports Server (NTRS)

    Arthur, J. J., III; Williams, Steven P.; Prinzel, Lawrence J., III; Kramer, Lynda J.; Bailey, Randall E.

    2004-01-01

    The Synthetic Vision Systems (SVS) Project of the National Aeronautics and Space Administration's (NASA) Aviation Safety Program (AvSP) is striving to eliminate poor visibility as a causal factor in aircraft accidents as well as enhance operational capabilities of all aircraft. To accomplish these safety and capacity improvements, the SVS concept is designed to provide a clear view of the world around the aircraft through the display of computer-generated imagery derived from an onboard database of terrain, obstacle, and airport information. Display media devices with which to implement SVS technology that have been evaluated so far within the Project include fixed field of view head up displays and head down Primary Flight Displays with pilot-selectable field of view. A simulation experiment was conducted comparing these display devices to a fixed field of view, unlimited field of regard, full color Helmet-Mounted Display system. Subject pilots flew a visual circling maneuver in IMC at a terrain-challenged airport. The data collected for this experiment is compared to past SVS research studies.

  20. 78 FR 20792 - Safety Zone; San Francisco Giants Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-08

    ... Zone; San Francisco Giants Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION... Francisco Giants Fireworks Display in the Captain of the Port, San Francisco area of responsibility during... public from the hazards associated with the fireworks display. During the enforcement period...

  1. 77 FR 28771 - Safety Zone; San Francisco Giants Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-16

    ... Zone; San Francisco Giants Fireworks Display, San Francisco, CA AGENCY: Coast Guard, DHS. ACTION... Francisco Giants Fireworks Display in the Captain of the Port, San Francisco area of responsibility during... public from the hazards associated with the fireworks display. During the enforcement period...

  2. Enhancing the usability of CRT displays in test flight monitoring

    NASA Astrophysics Data System (ADS)

    Granaas, Michael M.; Sredinski, Victoria E.

    1991-01-01

    Enhancing the usability of Mission Control Center (MCC) CRT displays stands to improve the quality, productivity, and safety of flight-test research at the NASA Ames-Dryden Flight Research Facility. The results of this research suggests that much can be done to assist the user and improve the quality of flight research through the enhancement of current displays. This research has applications to a variety of flight data monitoring displays.

  3. Display Considerations For Intravascular Ultrasonic Imaging

    NASA Astrophysics Data System (ADS)

    Gessert, James M.; Krinke, Charlie; Mallery, John A.; Zalesky, Paul J.

    1989-08-01

    A display has been developed for intravascular ultrasonic imaging. Design of this display has a primary goal of providing guidance information for therapeutic interventions such as balloons, lasers, and atherectomy devices. Design considerations include catheter configuration, anatomy, acoustic properties of normal and diseased tissue, catheterization laboratory and operating room environment, acoustic and electrical safety, acoustic data sampling issues, and logistical support such as image measurement, storage and retrieval. Intravascular imaging is in an early stage of development so design flexibility and expandability are very important. The display which has been developed is capable of acquisition and display of grey scale images at rates varying from static B-scans to 30 frames per second. It stores images in a 640 X 480 X 8 bit format and is capable of black and white as well as color display in multiplevideo formats. The design is based on the industry standard PC-AT architecture and consists of two AT style circuit cards, one for high speed sampling and the other for scan conversion, graphics and video generation.

  4. A variable-collimation display system

    NASA Astrophysics Data System (ADS)

    Batchko, Robert; Robinson, Sam; Schmidt, Jack; Graniela, Benito

    2014-03-01

    Two important human depth cues are accommodation and vergence. Normally, the eyes accommodate and converge or diverge in tandem; changes in viewing distance cause the eyes to simultaneously adjust both focus and orientation. However, ambiguity between accommodation and vergence cues is a well-known limitation in many stereoscopic display technologies. This limitation also arises in state-of-the-art full-flight simulator displays. In current full-flight simulators, the out-the-window (OTW) display (i.e., the front cockpit window display) employs a fixed collimated display technology which allows the pilot and copilot to perceive the OTW training scene without angular errors or distortions; however, accommodation and vergence cues are limited to fixed ranges (e.g., ~ 20 m). While this approach works well for long-range, the ambiguity of depth cues at shorter range hinders the pilot's ability to gauge distances in critical maneuvers such as vertical take-off and landing (VTOL). This is the first in a series of papers on a novel, variable-collimation display (VCD) technology that is being developed under NAVY SBIR Topic N121-041 funding. The proposed VCD will integrate with rotary-wing and vertical take-off and landing simulators and provide accurate accommodation and vergence cues for distances ranging from approximately 3 m outside the chin window to ~ 20 m. A display that offers dynamic accommodation and vergence could improve pilot safety and training, and impact other applications presently limited by lack of these depth cues.

  5. MEMS tactile display: from fabrication to characterization

    NASA Astrophysics Data System (ADS)

    Miki, Norihisa; Kosemura, Yumi; Watanabe, Junpei; Ishikawa, Hiroaki

    2014-03-01

    We report fabrication and characterization of MEMS-based tactile display that can display users various tactile information, such as Braille codes and surface textures. The display consists of 9 micro-actuators that are equipped with hydraulic displacement amplification mechanism (HDAM) to achieve large enough displacement to stimulate the human tactile receptors. HDAM encapsulates incompressible liquids. We developed a liquid encapsulation process, which we termed as Bonding-in-Liquid Technique, where bonding with a UV-curable resin in glycerin is conducted in the liquid, which prevented interfusion of air bubbles and deformation of the membrane during the bonding. HDAM successfully amplified the displacement generated by piezoelectric actuators by a factor of 6. The display could virtually produce "rough" and "smooth" surfaces, by controlling the vibration frequency, displacement, and the actuation periods of an actuator until the adjacent actuator was driven. We introduced a sample comparison method to characterize the surfaces, which involves human tactile sensation. First, we prepared samples whose mechanical properties are known. We displayed a surface texture to the user by controlling the parameters and then, the user selects a sample that has the most similar surface texture. By doing so, we can correlate the parameters with the mechanical properties of the sample as well as find the sets of the parameters that can provide similar tactile information to many users. The preliminary results with respect to roughness and hardness is presented.

  6. Evaluation of advanced displays for engine monitoring and control

    NASA Technical Reports Server (NTRS)

    Summers, L. G.

    1993-01-01

    The relative effectiveness of two advanced display concepts for monitoring engine performance for commercial transport aircraft was studied. The concepts were the Engine Monitoring and Control System (EMACS) display developed by NASA Langley and a display by exception design. Both of these concepts were based on the philosophy of providing information that is directly related to the pilot's task. Both concepts used a normalized thrust display. In addition, EMACS used column deviation indicators; i.e., the difference between the actual parameter value and the value predicted by an engine model, for engine health monitoring; while the Display by Exception displayed the engine parameters if the automated system detected a difference between the actual and the predicted values. The results showed that the advanced display concepts had shorter detection and response times. There were no differences in any of the results between manual and auto throttles. There were no effects upon perceived workload or performance on the primary flight task. The majority of pilots preferred the advanced displays and thought they were operationally acceptable. Certification of these concepts depends on the validation of the engine model. Recommendations are made to improve both the EMACS and the display by exception display formats.

  7. Performance characterization of a single bi-axial scanning MEMS mirror-based head-worn display

    NASA Astrophysics Data System (ADS)

    Liang, Minhua

    2002-06-01

    The NomadTM Personal Display System is a head-worn display (HWD) with a see-through, high-resolution, high-luminance display capability. It is based on a single bi-axial scanning MEMS mirror. In the Nomad HWD system, a red laser diode emits a beam of light that is scanned bi-axially by a single MEMS mirror. A diffractive beam diffuser and an ocular expand the beam to form a 12mm exit pupil for comfortable viewing. The Nomad display has an SVGA (800x600) resolution, 60Hz frame rate, 23-degree horizontal field of view (FOV) and 3:4 vertical to horizontal aspect ratio, a luminance of 800~900 foot-Lamberts, see-through capability, 30mm eye-relief distance, and 1-foot to infinity focusing adjustment. We have characterized the performance parameters, such as field of view, distortion, contrast ratio (4x4 black and white checker board), modulation depth, exit pupil size, eye relief distance, maximum luminance, dynamic range ratio (full-on-to-full-off ratio), dimming ratio, and luminance uniformity at image plane. The Class-1 eye-safety requirements per IEC 60825-1 Amendment 2 (CDRH Laser Notice No. 50) are analyzed and verified by experiments. The paper describes all of the testing methods and set-ups as well as the representative test results. The test results demonstrate that the Nomad display is an eye-safe display product with good image quality and good user ergonomics.

  8. Prediction of HDR quality by combining perceptually transformed display measurements with machine learning

    NASA Astrophysics Data System (ADS)

    Choudhury, Anustup; Farrell, Suzanne; Atkins, Robin; Daly, Scott

    2017-09-01

    We present an approach to predict overall HDR display quality as a function of key HDR display parameters. We first performed subjective experiments on a high quality HDR display that explored five key HDR display parameters: maximum luminance, minimum luminance, color gamut, bit-depth and local contrast. Subjects rated overall quality for different combinations of these display parameters. We explored two models | a physical model solely based on physically measured display characteristics and a perceptual model that transforms physical parameters using human vision system models. For the perceptual model, we use a family of metrics based on a recently published color volume model (ICT-CP), which consists of the PQ luminance non-linearity (ST2084) and LMS-based opponent color, as well as an estimate of the display point spread function. To predict overall visual quality, we apply linear regression and machine learning techniques such as Multilayer Perceptron, RBF and SVM networks. We use RMSE and Pearson/Spearman correlation coefficients to quantify performance. We found that the perceptual model is better at predicting subjective quality than the physical model and that SVM is better at prediction than linear regression. The significance and contribution of each display parameter was investigated. In addition, we found that combined parameters such as contrast do not improve prediction. Traditional perceptual models were also evaluated and we found that models based on the PQ non-linearity performed better.

  9. SureTrak Probability of Impact Display

    NASA Technical Reports Server (NTRS)

    Elliott, John

    2012-01-01

    The SureTrak Probability of Impact Display software was developed for use during rocket launch operations. The software displays probability of impact information for each ship near the hazardous area during the time immediately preceding the launch of an unguided vehicle. Wallops range safety officers need to be sure that the risk to humans is below a certain threshold during each use of the Wallops Flight Facility Launch Range. Under the variable conditions that can exist at launch time, the decision to launch must be made in a timely manner to ensure a successful mission while not exceeding those risk criteria. Range safety officers need a tool that can give them the needed probability of impact information quickly, and in a format that is clearly understandable. This application is meant to fill that need. The software is a reuse of part of software developed for an earlier project: Ship Surveillance Software System (S4). The S4 project was written in C++ using Microsoft Visual Studio 6. The data structures and dialog templates from it were copied into a new application that calls the implementation of the algorithms from S4 and displays the results as needed. In the S4 software, the list of ships in the area was received from one local radar interface and from operators who entered the ship information manually. The SureTrak Probability of Impact Display application receives ship data from two local radars as well as the SureTrak system, eliminating the need for manual data entry.

  10. Polychromatic plots: graphical display of multidimensional data.

    PubMed

    Roederer, Mario; Moody, M Anthony

    2008-09-01

    Limitations of graphical displays as well as human perception make the presentation and analysis of multidimensional data challenging. Graphical display of information on paper or by current projectors is perforce limited to two dimensions; the encoding of information from other dimensions must be overloaded into the two physical dimensions. A number of alternative means of encoding this information have been implemented, such as offsetting data points at an angle (e.g., three-dimensional projections onto a two-dimensional surface) or generating derived parameters that are combinations of other variables (e.g., principal components). Here, we explore the use of color to encode additional dimensions of data. PolyChromatic Plots are standard dot plots, where the color of each event is defined by the values of one, two, or three of the measurements for that event. The measurements for these parameters are mapped onto an intensity value for each primary color (red, green, or blue) based on different functions. In addition, differential weighting of the priority with which overlapping events are displayed can be defined by these same measurements. PolyChromatic Plots can encode up to five independent dimensions of data in a single display. By altering the color mapping function and the priority function, very different displays that highlight or de-emphasize populations of events can be generated. As for standard black-and-white dot plots, frequency information can be significantly biased by this display; care must be taken to ensure appropriate interpretation of the displays. PolyChromatic Plots are a powerful display type that enables rapid data exploration. By virtue of encoding as many as five dimensions of data independently, an enormous amount of information can be gleaned from the displays. In many ways, the display performs somewhat like an unsupervised cluster algorithm, by highlighting events of similar distributions in multivariate space.

  11. Novel flight instrument display to minimize the risk of spatial disorientation

    NASA Astrophysics Data System (ADS)

    Braithwaite, Malcolm G.; Durnford, Simon J.

    1997-06-01

    This novel flight instrument display presents information to the pilot in a simple and easily comprehensible format by integrating the five orientational flight parameters. It allows the pilot to select specific orientation parameters and then follow a simple tracking task which ensures that these parameters are maintained or, if necessary, recovered. The pilot can at any time check any parameter he wishes, but is free from the requirement to continually sample and combine information from the traditional instruments to maintain stable flight. Cognitive workload to maintain orientation is thus reduced. Our assessment of the display in a UH-60 helicopter simulator showed that the novel display makes recovery from unusual aircraft attitudes and instrument flying easier than when using the standard instrument panel.

  12. Predictive Features of a Cockpit Traffic Display: A Workload Assessment

    NASA Technical Reports Server (NTRS)

    Wickens, Christopher D.; Morphew, Ephimia

    1997-01-01

    Eighteen pilots flew a series of traffic avoidance maneuvers in an experiment designed to assess the support offered and workload imposed by different levels of traffic display information in a free flight simulation. Three display prototypes were compared which differed in traffic information provided. A BASELINE (BL) display provided current and (2nd order) predicted information regarding ownship and current information of an intruder aircraft, represented on lateral and vertical displays in a coplanar suite. An INTRUDER PREDICTOR (IP) display, augmented the baseline display by providing lateral and vertical prediction of the intruder aircraft. A THREAT VECTOR (TV) display added to the IP display a vector that indicates the direction from ownship to the intruder at the predicted point of closest contact (POCC). The length of the vector corresponds to the radius of the protected zone, and the distance of the intersection of the vector with ownship predictor, corresponds to the time available till POCC or loss of separation. Pilots time shared the traffic avoidance task with a secondary task requiring them to monitor the top of the display for faint targets. This task simulated the visual demands of out-of-cockpit scanning, and hence was used to estimate the head-down time required by the different display formats. The results revealed that both display augmentations improved performance (safety) as assessed by predicted and actual loss of separation (i.e., penetration of the protected zone). Both enhancements also reduced workload, as assessed by the NASA TLX scale. The intruder predictor display produced these benefits with no substantial impact on the qualitative nature of the avoidance maneuvers that were selected. The threat vector produced the safety benefits by inducing a greater degree of (effective) lateral maneuvering, thus partially offsetting the benefits of reduced workload. The three displays did not differ in terms of their effect on performance of

  13. Therapeutic Antibodies by Phage Display.

    PubMed

    Shim, Hyunbo

    2016-01-01

    Antibody phage display is a major technological platform for the generation of fully human antibodies for therapeutic purposes. The in vitro binder selection by phage display allows researchers to have more extensive control over binding parameters and facilitates the isolation of clinical candidate antibodies with desired binding and/or functional profiles. Since the invention of antibody phage display in late 1980s, significant technological advancements in the design, construction, and selection of the antibody libraries have been made, and several fully human antibodies generated by phage display are currently approved or in various clinical development stages. In this review, the background and details of antibody phage display technology, and representative antibody libraries with natural or synthetic sequence diversity and different construction strategies are described. The generation, optimization, functional and biophysical properties, and preclinical and clinical developments of some of the phage display-derived therapeutic antibodies approved for use in patients or in late-stage clinical trials are also discussed. With evolving novel disease targets and therapeutic strategies, antibody phage display is expected to continue to play a central role in the development of the next generation of therapeutic antibodies. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

  14. Evaluation of tactual displays for flight control

    NASA Technical Reports Server (NTRS)

    Levison, W. H.; Tanner, R. B.; Triggs, T. J.

    1973-01-01

    Manual tracking experiments were conducted to determine the suitability of tactual displays for presenting flight-control information in multitask situations. Although tracking error scores are considerably greater than scores obtained with a continuous visual display, preliminary results indicate that inter-task interference effects are substantially less with the tactual display in situations that impose high visual scanning workloads. The single-task performance degradation found with the tactual display appears to be a result of the coding scheme rather than the use of the tactual sensory mode per se. Analysis with the state-variable pilot/vehicle model shows that reliable predictions of tracking errors can be obtained for wide-band tracking systems once the pilot-related model parameters have been adjusted to reflect the pilot-display interaction.

  15. Real time speech formant analyzer and display

    DOEpatents

    Holland, George E.; Struve, Walter S.; Homer, John F.

    1987-01-01

    A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user.

  16. Real time speech formant analyzer and display

    DOEpatents

    Holland, G.E.; Struve, W.S.; Homer, J.F.

    1987-02-03

    A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user. 19 figs.

  17. "Head up and eyes out" advances in head mounted displays capabilities

    NASA Astrophysics Data System (ADS)

    Cameron, Alex

    2013-06-01

    There are a host of helmet and head mounted displays, flooding the market place with displays which provide what is essentially a mobile computer display. What sets aviators HMDs apart is that they provide the user with accurate conformal information embedded in the pilots real world view (see through display) where the information presented is intuitive and easy to use because it overlays the real world (mix of sensor imagery, symbolic information and synthetic imagery) and enables them to stay head up, eyes out, - improving their effectiveness, reducing workload and improving safety. Such systems are an enabling technology in the provision of enhanced Situation Awareness (SA) and reducing user workload in high intensity situations. Safety Is Key; so the addition of these HMD functions cannot detract from the aircrew protection functions of conventional aircrew helmets which also include life support and audio communications. These capabilities are finding much wider application in new types of compact man mounted audio/visual products enabled by the emergence of new families of micro displays, novel optical concepts and ultra-compact low power processing solutions. This papers attempts to capture the key drivers and needs for future head mounted systems for aviation applications.

  18. KENNEDY SPACE CENTER, FLA. - Employees file around table displays under a tent near the Operations and Checkout Building. Many vendors and organizations displayed their products during the Spaceport Super Safety and Health Day at KSC and Cape Canaveral Air Force Station, an annual event dedicated to reinforcing safe and healthful behaviors in the workforce.

    NASA Image and Video Library

    2003-10-15

    KENNEDY SPACE CENTER, FLA. - Employees file around table displays under a tent near the Operations and Checkout Building. Many vendors and organizations displayed their products during the Spaceport Super Safety and Health Day at KSC and Cape Canaveral Air Force Station, an annual event dedicated to reinforcing safe and healthful behaviors in the workforce.

  19. Dyes for displays

    NASA Astrophysics Data System (ADS)

    Claussen, U.

    1984-01-01

    The improvement of contrast and visibility of LCD by two different means was undertaken. The two methods are: (1) development of fluorescent dyes to increase the visibility of fluorescent activated displays (FLAD); and (2) development of dichroic dyes to increase the contrast of displays. This work was done in close cooperation with the electronic industry, where the newly synthesized dyes were tested. The targets for the chemical synthesis were selected with the help of computer model calculations. A marketable range of dyes was developed. Since the interest of the electronic industries concerning FLAD was low, the investigations were stopped. Dichroic dyes, especially black mixtures with good light fastness, order parameter, and solubility in nematic phases were developed. The application of these dyes is restricted to indoor use because of an increase of viscosity below -10 C. Applications on a technical scale, e.g., for the automotive industry, will be possible if the displays work at temperatures down to -40 C. This problem requires a complex optimization of the dye/nematic phase system.

  20. Application of holographic elements in displays and planar illuminators

    NASA Astrophysics Data System (ADS)

    Putilin, Andrew; Gustomiasov, Igor

    2007-05-01

    Holographic Optical Elements (HOE's) on planar waveguides can be used to design the planar optics for backlit units, color selectors or filters, lenses for virtual reality displays. The several schemes for HOE recording are proposed to obtain planar stereo backlit unit and private eye displays light source. It is shown in the paper that the specific light transformation grating permits to construct efficient backlit units for display holograms and LCD. Several schemes of reflection/transmission backlit units and scattering films based on holographic optical elements are also proposed. The performance of the waveguide HOE can be optimized using the parameters of recording scheme and etching parameters. The schemes of HOE application are discussed and some experimental results are shown.

  1. Potential Health Hazards of Video Display Terminals.

    ERIC Educational Resources Information Center

    Murray, William E.; And Others

    In response to a request from three California unions to evaluate potential health hazards from the use of video display terminals (VDT's) in information processing applications, the National Institute for Occupational Safety and Health (NIOSH) conducted a limited field investigation of three companies in the San Francisco-Oakland Bay Area. A…

  2. Latency Requirements for Head-Worn Display S/EVS Applications

    NASA Technical Reports Server (NTRS)

    Bailey, Randall E.; Trey Arthur, J. J., III; Williams, Steven P.

    2004-01-01

    NASA s Aviation Safety Program, Synthetic Vision Systems Project is conducting research in advanced flight deck concepts, such as Synthetic/Enhanced Vision Systems (S/EVS), for commercial and business aircraft. An emerging thrust in this activity is the development of spatially-integrated, large field-of-regard information display systems. Head-worn or helmet-mounted display systems are being proposed as one method in which to meet this objective. System delays or latencies inherent to spatially-integrated, head-worn displays critically influence the display utility, usability, and acceptability. Research results from three different, yet similar technical areas flight control, flight simulation, and virtual reality are collectively assembled in this paper to create a global perspective of delay or latency effects in head-worn or helmet-mounted display systems. Consistent definitions and measurement techniques are proposed herein for universal application and latency requirements for Head-Worn Display S/EVS applications are drafted. Future research areas are defined.

  3. Latency requirements for head-worn display S/EVS applications

    NASA Astrophysics Data System (ADS)

    Bailey, Randall E.; Arthur, Jarvis J., III; Williams, Steven P.

    2004-08-01

    NASA's Aviation Safety Program, Synthetic Vision Systems Project is conducting research in advanced flight deck concepts, such as Synthetic/Enhanced Vision Systems (S/EVS), for commercial and business aircraft. An emerging thrust in this activity is the development of spatially-integrated, large field-of-regard information display systems. Head-worn or helmet-mounted display systems are being proposed as one method in which to meet this objective. System delays or latencies inherent to spatially-integrated, head-worn displays critically influence the display utility, usability, and acceptability. Research results from three different, yet similar technical areas - flight control, flight simulation, and virtual reality - are collectively assembled in this paper to create a global perspective of delay or latency effects in head-worn or helmet-mounted display systems. Consistent definitions and measurement techniques are proposed herein for universal application and latency requirements for Head-Worn Display S/EVS applications are drafted. Future research areas are defined.

  4. HDTV and large-screen display

    NASA Astrophysics Data System (ADS)

    Mitsuhashi, Tetsuo

    1990-08-01

    HDTV (known as Hi-Vision in Japan), with its ability to provide through high- definition pictures on a large screen display advanced psychological effects such as sensations of reality and a visual impact unobtainable in conventional television, is the television system of the next generation. In Japan, daily one-hour experimental broadcasting was initiated in June 1989 using the BS-2 broadcast satellite, and regular service is scheduled to begin via the BS-3 satellite to be launched in 1990. To this end, a home-use receiver using VLSIs has already been developed. Moreover, HDTV is currently being applied in such diverse areas as film production, printing and publishing, medicine, and art museums. The HDTV system handles approximately five times the information of conventional television. As a result, a large screen display capable of maintaining stable resolution greater than twice that of conventional displays is essential to the full realization of HDTV's vast potential. This paper will first discuss HDTV's basic parameters, concentrating on the psychovisual effects, and explain some preferable display characteristics from this psychovisual point of view. It will then discuss the technical problems in developing such a display, and final ly describe the current state of HDTV display development.

  5. Dual redundant display in bubble canopy applications

    NASA Astrophysics Data System (ADS)

    Mahdi, Ken; Niemczyk, James

    2010-04-01

    Today's cockpit integrator, whether for state of the art military fast jet, or piston powered general aviation, is striving to utilize all available panel space for AMLCD based displays to enhance situational awareness and increase safety. The benefits of a glass cockpit have been well studied and documented. The technology used to create these glass cockpits, however, is driven by commercial AMLCD demand which far outstrips the combined worldwide avionics requirements. In order to satisfy the wide variety of human factors and environmental requirements, large area displays have been developed to maximize the usable display area while also providing necessary redundancy in case of failure. The AMLCD has been optimized for extremely wide viewing angles driven by the flat panel TV market. In some cockpit applications, wide viewing cones are desired. In bubble canopy cockpits, however, narrow viewing cones are desired to reduce canopy reflections. American Panel Corporation has developed AMLCD displays that maximize viewing area, provide redundancy, while also providing a very narrow viewing cone even though commercial AMLCD technology is employed suitable for high performance AMLCD Displays. This paper investigates both the large area display architecture with several available options to solve redundancy as well as beam steering techniques to also limit canopy reflections.

  6. Method To Display Data On A Face Mask

    NASA Technical Reports Server (NTRS)

    Moore, Kevin-Duron

    1995-01-01

    Proposed electronic instrument displays information on diver's or firefighter's face mask. Includes mask, prism, electronic readouts, transceiver and control electronics. Mounted at periphery of diver's field of view to provide data on elapsed time, depth, pressure, and temperature. Provides greater safety and convenience to user.

  7. Super Safety and Health Day at KSC

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Employees take a look at this NASCAR auto being displayed during Super Safety and Health Day at KSC. Safety Day is a full day of NASA-sponsored, KSC and 45th Space Wing events involving a number of health and safety related activities: Displays, vendors, technical paper sessions, panel discussions, a keynote speaker, etc. The entire Center and Wing stand down to participate in the planned events. Safety Day is held annually to proactively increase awareness in safety and health among the government and contractor workforce population. The first guiding principle at KSC is '''Safety and Health First.''' KSC's number one goal is to '''Assure sound, safe and efficient practices and processes are in place for privatized/commercialized launch site processing.'''

  8. 33 CFR 165.1708 - Tongass Narrows, Ketchikan, Alaska-Safety Zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...°39′40″ W used to conduct fireworks displays. (b) Effective date. The safety zone becomes effective on July 3 each year at 10 p.m. ADT. It terminates at the conclusion of the fireworks display at... fireworks display is postponed because of inclement weather, the date and duration of the safety zone will...

  9. A novel active heads-up display for driver assistance.

    PubMed

    Doshi, Anup; Cheng, Shinko Yuanhsien; Trivedi, Mohan Manubhai

    2009-02-01

    In this paper, we introduce a novel laser-based wide-area heads-up windshield display which is capable of actively interfacing with a human as part of a driver assistance system. The dynamic active display (DAD) is a unique prototype interface that presents safety-critical visual icons to the driver in a manner that minimizes the deviation of his or her gaze direction without adding to unnecessary visual clutter. As part of an automotive safety system, the DAD presents alerts in the field of view of the driver only if necessary, which is based upon the state and pose of the driver, vehicle, and environment. This paper examines the effectiveness of DAD through a comprehensive comparative experimental evaluation of a speed compliance driver assistance system, which is implemented on a vehicular test bed. Three different types of display protocols for assisting a driver to comply with speed limits are tested on actual roadways, and these are compared with a conventional dashboard display. Given the inclination, drivers who are given an overspeed warning alert reduced the time required to slow down to the speed limit by 38% (p < 0.01) as compared with the drivers not given the alert. Additionally, certain alerts decreased distraction levels by reducing the time spent looking away from the road by 63% (p < 0.01). Ultimately, these alerts demonstrate the utility and promise of the DAD system.

  10. Software for Automated Testing of Mission-Control Displays

    NASA Technical Reports Server (NTRS)

    OHagan, Brian

    2004-01-01

    MCC Display Cert Tool is a set of software tools for automated testing of computerterminal displays in spacecraft mission-control centers, including those of the space shuttle and the International Space Station. This software makes it possible to perform tests that are more thorough, take less time, and are less likely to lead to erroneous results, relative to tests performed manually. This software enables comparison of two sets of displays to report command and telemetry differences, generates test scripts for verifying telemetry and commands, and generates a documentary record containing display information, including version and corrective-maintenance data. At the time of reporting the information for this article, work was continuing to add a capability for validation of display parameters against a reconfiguration file.

  11. 78 FR 13864 - Atlantic Highly Migratory Species; Exempted Fishing, Scientific Research, Display, and Chartering...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-01

    ... Highly Migratory Species; Exempted Fishing, Scientific Research, Display, and Chartering Permits; Letters... Permits (EFPs), Scientific Research Permits (SRPs), Display Permits, Letters of Acknowledgment (LOAs), and... scientific research, the acquisition of information and data, the enhancement of safety at sea, the purpose...

  12. 78 FR 39997 - Safety Zone; Fourth of July Fireworks Display, Tahoe City, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ... Zone; Fourth of July Fireworks Display, Tahoe City, CA AGENCY: Coast Guard, DHS. ACTION: Notice of... Fireworks Display, Tahoe City, CA in the Captain of the Port, San Francisco area of responsibility during... launch site off of Tahoe City, CA in approximate position 39[deg]10'09'' N, 120[deg]08'16'' W (NAD 83...

  13. An integrated measure of display clutter based on feature content, user knowledge and attention allocation factors.

    PubMed

    Pankok, Carl; Kaber, David B

    2018-05-01

    Existing measures of display clutter in the literature generally exhibit weak correlations with task performance, which limits their utility in safety-critical domains. A literature review led to formulation of an integrated display data- and user knowledge-driven measure of display clutter. A driving simulation experiment was conducted in which participants were asked to search 'high' and 'low' clutter displays for navigation information. Data-driven measures and subjective perceptions of clutter were collected along with patterns of visual attention allocation and driving performance responses during time periods in which participants searched the navigation display for information. The new integrated measure was more strongly correlated with driving performance than other, previously developed measures of clutter, particularly in the case of low-clutter displays. Integrating display data and user knowledge factors with patterns of visual attention allocation shows promise for measuring display clutter and correlation with task performance, particularly for low-clutter displays. Practitioner Summary: A novel measure of display clutter was formulated, accounting for display data content, user knowledge states and patterns of visual attention allocation. The measure was evaluated in terms of correlations with driver performance in a safety-critical driving simulation study. The measure exhibited stronger correlations with task performance than previously defined measures.

  14. Flight Test of a Head-Worn Display as an Equivalent-HUD for Terminal Operations

    NASA Technical Reports Server (NTRS)

    Shelton, K. J.; Arthur, J. J., III; Prinzel, L. J., III; Nicholas, S. N.; Williams, S. P.; Bailey, R. E.

    2015-01-01

    Research, development, test, and evaluation of flight deck interface technologies is being conducted by NASA to proactively identify, develop, and mature tools, methods, and technologies for improving overall aircraft safety of new and legacy vehicles operating in the Next Generation Air Transportation System (NextGen). Under NASA's Aviation Safety Program, one specific area of research is the use of small Head-Worn Displays (HWDs) as a potential equivalent display to a Head-up Display (HUD). Title 14 of the US CFR 91.175 describes a possible operational credit which can be obtained with airplane equipage of a HUD or an "equivalent"' display combined with Enhanced Vision (EV). A successful HWD implementation may provide the same safety and operational benefits as current HUD-equipped aircraft but for significantly more aircraft in which HUD installation is neither practical nor possible. A flight test was conducted to evaluate if the HWD, coupled with a head-tracker, can provide an equivalent display to a HUD. Approach and taxi testing was performed on-board NASA's experimental King Air aircraft in various visual conditions. Preliminary quantitative results indicate the HWD tested provided equivalent HUD performance, however operational issues were uncovered. The HWD showed significant potential as all of the pilots liked the increased situation awareness attributable to the HWD's unique capability of unlimited field-of-regard.

  15. Flight test of a head-worn display as an equivalent-HUD for terminal operations

    NASA Astrophysics Data System (ADS)

    Shelton, K. J.; Arthur, J. J.; Prinzel, L. J.; Nicholas, S. N.; Williams, S. P.; Bailey, R. E.

    2015-05-01

    Research, development, test, and evaluation of flight deck interface technologies is being conducted by NASA to proactively identify, develop, and mature tools, methods, and technologies for improving overall aircraft safety of new and legacy vehicles operating in the Next Generation Air Transportation System (NextGen). Under NASA's Aviation Safety Program, one specific area of research is the use of small Head-Worn Displays (HWDs) as a potential equivalent display to a Head-up Display (HUD). Title 14 of the US CFR 91.175 describes a possible operational credit which can be obtained with airplane equipage of a HUD or an "equivalent"' display combined with Enhanced Vision (EV). A successful HWD implementation may provide the same safety and operational benefits as current HUD-equipped aircraft but for significantly more aircraft in which HUD installation is neither practical nor possible. A flight test was conducted to evaluate if the HWD, coupled with a head-tracker, can provide an equivalent display to a HUD. Approach and taxi testing was performed on-board NASA's experimental King Air aircraft in various visual conditions. Preliminary quantitative results indicate the HWD tested provided equivalent HUD performance, however operational issues were uncovered. The HWD showed significant potential as all of the pilots liked the increased situation awareness attributable to the HWD's unique capability of unlimited field-of-regard.

  16. Super Safety and Health Day at KSC

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Vendor tents and displays filled the grounds in the Industrial Area as well as LC 39 Area during Super Safety and Health Day at KSC. Safety Day is a full day of NASA-sponsored, KSC and 45th Space Wing events involving a number of health and safety related activities: Displays, vendors, technical paper sessions, panel discussions, a keynote speaker, etc. The entire Center and Wing stand down to participate in the planned events. Safety Day is held annually to proactively increase awareness in safety and health among the government and contractor workforce population. The first guiding principle at KSC is '''Safety and Health First.''' KSC's number one goal is to '''Assure sound, safe and efficient practices and processes are in place for privatized/commercialized launch site processing.'''

  17. 77 FR 39174 - Safety Zone, Temporary Change for Recurring Fifth Coast Guard District Fireworks Displays...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-02

    ..., Cavalier Golf & Yacht Club Independence Day Fireworks Display, Broad Bay; Virginia Beach, VA AGENCY: Coast... regulation refers to the fireworks display event that takes place on the navigable waters of Broad Bay in... Independence Day Fireworks Display, Broad Bay; Virginia Beach, Virginia in the Federal Register (76 FR 27156...

  18. Engaging Agribusinesses: Feasibility and Cost of an ATV Safety Poster Project.

    PubMed

    Jennissen, Charles A; Sweat, Shane; Wetjen, Kristel; Hoogerwerf, Pam; Denning, Gerene M

    2017-01-01

    All-terrain vehicle (ATV)-related deaths and injuries continue to be a significant problem. Influential change agents such as agribusinesses could be important partners for improving safety behaviors among rural ATV users. Our objective was to determine how effectively an injury prevention project could engage agribusinesses through the postal service and to assess their willingness to display a safety poster. One thousand two hundred forty-four agribusinesses received an ATV safety poster and a postcard survey by mail. A randomized sampling of these businesses was surveyed by telephone 4-7 weeks later. Telephone survey questions included whether they recalled receiving the poster, and if so, whether, where and how long the poster was displayed. One hundred six postcards were returned. Of the 192 eligible business persons contacted by telephone, 89% agreed to participate. Approximately one-third of telephone survey participants recalled receiving the poster. Among these, 81% with walk-in customers posted it, and 74% still had it displayed 1 month later. Of participants who did not recall receiving the poster, 83% stated they would have displayed the poster. The cost of displaying each poster in a business was 16.6 cents/day during the first month. Final costs/day would be much less because of continued display. A high percentage of agribusinesses displayed or would have displayed an ATV safety poster, and most displayed it beyond 1 month. Unfortunately, participant recruitment via postal delivery alone was challenging. Nevertheless, mass mailing of injury prevention materials to be displayed in the retail setting may be a low cost method for raising safety awareness.

  19. A helmet mounted display to adapt the telerobotic environment to human vision

    NASA Technical Reports Server (NTRS)

    Tharp, Gregory; Liu, Andrew; Yamashita, Hitomi; Stark, Lawrence

    1990-01-01

    A Helmet Mounted Display system has been developed. It provides the capability to display stereo images with the viewpoint tied to subjects' head orientation. The type of display might be useful in a telerobotic environment provided the correct operating parameters are known. The effects of update frequency were tested using a 3D tracking task. The effects of blur were tested using both tracking and pick-and-place tasks. For both, researchers found that operator performance can be degraded if the correct parameters are not used. Researchers are also using the display to explore the use of head movements as part of gaze as subjects search their visual field for target objects.

  20. 9 CFR 590.960 - Small importations for consignee's personal use, display, or laboratory analysis.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... personal use, display, or laboratory analysis. 590.960 Section 590.960 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE EGG PRODUCTS INSPECTION INSPECTION OF EGGS AND... personal use, display, or laboratory analysis. Any egg products which are offered for importation...

  1. Effects of combining vertical and horizontal information into a primary flight display

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.; Nataupsky, Mark; Steinmetz, George G.

    1987-01-01

    A ground-based aircraft simulation study was conducted to determine the effects of combining vertical and horizontal flight information into a single display. Two display configurations were used in this study. The first configuration consisted of a Primary Flight Display (PFD) format and a Horizontal Situation Display (HSD) with the PFD displayed conventionally above the HSD. For the second display configuration, the HSD format was combined with the PFD format. Four subjects participated in this study. Data were collected on performance parameters, pilot-control inputs, auditory evoked response parameters (AEP), oculometer measurements (eye-scan), and heart rate. Subjective pilot opinion was gathered through questionnaire data and scorings for both the Subjective Workload Assessment Technique (SWAT) and the NASA Task Load Index (NASA-TLX). The results of this study showed that, from a performance and subjective standpoint, the combined configuration was better than the separate configuration. Additionally, both the eye-transition and eye-dwell times for the separate HSD were notably higher than expected, with a 46% increase in available visual time when going from double to single display configuration.

  2. 77 FR 27381 - Safety Zone; Newport High School Graduation Fireworks, Newport, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-10

    ...-AA00 Safety Zone; Newport High School Graduation Fireworks, Newport, OR AGENCY: Coast Guard, DHS....1. 2. Add Sec. 165.T216 Safety Zone; Newport High School Graduation Fireworks Display; Newport, OR Sec. 165.T216 Safety Zone; Newport High School Graduation Fireworks Display; Newport, OR Location The...

  3. Flight Envelope Information-Augmented Display for Enhanced Pilot Situation Awareness

    NASA Technical Reports Server (NTRS)

    Ackerman, Kasey A.; Seefeldt, Benjamin D.; Xargay, Enric; Talleur, Donald A.; Carbonari, Ronald S.; Kirlik, Alex; Hovakimyan, Naira; Trujillo, Anna C.; Belcastro, Christine M.; Gregory, Irene M.

    2015-01-01

    This paper presents an interface system display which is conceived to improve pilot situation awareness with respect to a flight envelope protection system developed for a mid-sized transport aircraft. The new display is designed to complement existing cockpit displays, and to augment them with information that relates to both aircraft state and the control automation itself. In particular, the proposed display provides cues about the state of automation directly in terms of pilot control actions, in addition to flight parameters. The paper also describes a forthcoming evaluation test plan that is intended to validate the developed interface by assessing the relevance of the displayed information, as well as the adequacy of the display layout.

  4. Interactive 3D display simulator for autostereoscopic smart pad

    NASA Astrophysics Data System (ADS)

    Choe, Yeong-Seon; Lee, Ho-Dong; Park, Min-Chul; Son, Jung-Young; Park, Gwi-Tae

    2012-06-01

    There is growing interest of displaying 3D images on a smart pad for entertainments and information services. Designing and realizing various types of 3D displays on the smart pad is not easy for costs and given time. Software simulation can be an alternative method to save and shorten the development. In this paper, we propose a 3D display simulator for autostereoscopic smart pad. It simulates light intensity of each view and crosstalk for smart pad display panels. Designers of 3D display for smart pad can interactively simulate many kinds of autostereoscopic displays interactively by changing parameters required for panel design. Crosstalk to reduce leakage of one eye's image into the image of the other eye, and light intensity for computing visual comfort zone are important factors in designing autostereoscopic display for smart pad. Interaction enables intuitive designs. This paper describes an interactive 3D display simulator for autostereoscopic smart pad.

  5. Aircraft Engine-Monitoring System And Display

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.; Person, Lee H., Jr.

    1992-01-01

    Proposed Engine Health Monitoring System and Display (EHMSD) provides enhanced means for pilot to control and monitor performances of engines. Processes raw sensor data into information meaningful to pilot. Provides graphical information about performance capabilities, current performance, and operational conditions in components or subsystems of engines. Provides means to control engine thrust directly and innovative means to monitor performance of engine system rapidly and reliably. Features reduce pilot workload and increase operational safety.

  6. MIRAGE: The data acquisition, analysis, and display system

    NASA Technical Reports Server (NTRS)

    Rosser, Robert S.; Rahman, Hasan H.

    1993-01-01

    Developed for the NASA Johnson Space Center and Life Sciences Directorate by GE Government Services, the Microcomputer Integrated Real-time Acquisition Ground Equipment (MIRAGE) system is a portable ground support system for Spacelab life sciences experiments. The MIRAGE system can acquire digital or analog data. Digital data may be NRZ-formatted telemetry packets of packets from a network interface. Analog signal are digitized and stored in experimental packet format. Data packets from any acquisition source are archived to a disk as they are received. Meta-parameters are generated from the data packet parameters by applying mathematical and logical operators. Parameters are displayed in text and graphical form or output to analog devices. Experiment data packets may be retransmitted through the network interface. Data stream definition, experiment parameter format, parameter displays, and other variables are configured using spreadsheet database. A database can be developed to support virtually any data packet format. The user interface provides menu- and icon-driven program control. The MIRAGE system can be integrated with other workstations to perform a variety of functions. The generic capabilities, adaptability and ease of use make the MIRAGE a cost-effective solution to many experimental data processing requirements.

  7. Real Image Visual Display System

    DTIC Science & Technology

    1992-12-01

    DTI-100M autostereoscopic display ......................... 15 8. Lenticular screen ........ ............................. 16 9. Lenticular screen...parameters and pixel position ................. 17 10. General viewing of the stereoscopic couple .................... 18 11. Viewing zones for lenticular ...involves using a lenticular screen for imaging. Lenticular screens are probably most familiar in the form of ŗ-D postcards" which 15 consist of an

  8. Symbolic enhancement of perspective displays

    NASA Technical Reports Server (NTRS)

    Ellis, Stephen R.; Hacisalihzade, Selim S.

    1990-01-01

    Two exocentric azimuth judgment experiments with a perspective display were conducted with 16 subjects. Previous work has shown these judgments to exhibit a bias possibly due to misinterpretation of the viewing parameters used to generate the display. Though geometric compensations may be used to correct for the bias, an alternate technique selected in the following 2 experiments was the introduction of symbolic enhancements in the form of compass roses. It is suggested that a compass rose with 30 deg divisions results in overall optimal azimuth estimation accuracy when accuracy and decision time are both considered. The data also suggest that the added radial lines on the compass roses may interact with normalization processes that influence the judgment errors.

  9. Recent progress in Bacillus subtilis spore-surface display: concept, progress, and future.

    PubMed

    Wang, He; Wang, Yunxiang; Yang, Ruijin

    2017-02-01

    With the increased knowledge on spore structure and advances in biotechnology engineering, the newly developed spore-surface display system confers several inherent advantages over other microbial cell-surface display systems including enhanced stability and high safety. Bacillus subtilis is the most commonly used Bacillus species for spore-surface display. The expression of heterologous antigen or protein on the surface of B. subtilis spores has now been practiced for over a decade with noteworthy success. As an update and supplement to other previous reviews, we comprehensively summarize recent studies in the B. subtilis spore-surface display technique. We focus on its benefits as well as the critical factors affecting its display efficiency and offer suggestions for the future success of this field.

  10. Toward Head-Worn Displays for Equivalent Visual Operations

    NASA Technical Reports Server (NTRS)

    Prinzel, Lawrence (Lance) J., III; Arthur, Jarvis J. (Trey); Bailey, Randall E.; Jones, Denise R.; Williams, Steven P.; Harrison, Stephanie J.

    2015-01-01

    The Next Generation Air Transportation System represents an envisioned transformation to the U.S. air transportation system that includes an "equivalent visual operations" (EVO) concept, intended to achieve the safety and operational tempos of Visual Flight Rules (VFR) operations independent of visibility conditions. Today, Federal Aviation Administration regulations provide for the use of an Enhanced Flight Visual System (EFVS) as "operational credit" to conduct approach operations below traditional minima otherwise prohibited. An essential element of an EFVS is the Head-Up Display (HUD). NASA has conducted a substantial amount of research investigating the use of HUDs for operational landing "credit", and current efforts are underway to enable manually flown operations as low as 1000 feet Runway Visual Range (RVR). Title 14 CFR 91.175 describes the use of EFVS and the operational credit that may be obtained with airplane equipage of a HUD combined with Enhanced Vision (EV) while also offering the potential use of an “equivalent” display in lieu of the HUD. A Head-Worn Display (HWD) is postulated to provide the same, or better, safety and operational benefits as current HUD-equipped aircraft but for potentially more aircraft and for lower cost. A high-fidelity simulation was conducted that examined the efficacy of HWDs as "equivalent" displays. Twelve airline flight crews conducted 1000 feet RVR approach and 300 feet RVR departure operations using either a HUD or HWD, both with simulated Forward Looking Infra-Red cameras. The paper shall describe (a) quantitative and qualitative results, (b) a comparative evaluation of these findings with prior NASA HUD studies, and (c) describe current research efforts for EFVS to provide for a comprehensive EVO capability.

  11. A comparative evaluation of in-vehicle side view displays layouts in critical lane changing situation.

    PubMed

    Beck, Donghyun; Lee, Minho; Park, Woojin

    2017-12-01

    This study conducted a driving simulator experiment to comparatively evaluate three in-vehicle side view displays layouts for camera monitor systems (CMS) and the traditional side view mirror arrangement. The three layouts placed two electronic side view displays near the traditional mirrors positions, on the dashboard at each side of the steering wheel and on the centre fascia with the two displays joined side-by-side, respectively. Twenty-two participants performed a time- and safety-critical driving task that required rapidly gaining situation awareness through the side view displays/mirrors and making a lane change to avoid collision. The dependent variables were eye-off-the-road time, response time, and, ratings of perceived workload, preference and perceived safety. Overall, the layout placing the side view displays on the dashboard at each side of the steering wheel was found to be the best. The results indicated that reducing eye gaze travel distance and maintaining compatibility were both important for the design of CMS displays layout. Practitioner Summary: A driving simulator study was conducted to comparatively evaluate three in-vehicle side view displays layouts for camera monitor systems (CMS) and the traditional side view mirror arrangement in critical lane changing situation. Reducing eye movement and maintaining compatibility were found to be both important for the ergonomics design of CMS displays layout.

  12. Image Fluctuations in LED Electromechanical 3D-Display

    NASA Astrophysics Data System (ADS)

    Klyuev, Alexey V.; Yakimov, Arkady V.

    Fluctuations in parameters of light-emitting diode (LED) electromechanical 3D-display are investigated. It is shown, that there are two types of fluctuations in the rotating 3D-display. The first one is caused by a small increment in the rotation angle, which has a tendency to the increase. That occurs in the form of the “drift” without periodic changes of the angle. The second one is the change in small linear increments of the angle, which occurs as undamped harmonic oscillations with constant amplitude. This shows the stability of the investigated steady state because there is no tendency to increase the amplitude of the considered parameter regime. In conclusion we give some recommendations how to improve synchronization of the system.

  13. Call sign intelligibility improvement using a spatial auditory display

    NASA Technical Reports Server (NTRS)

    Begault, Durand R.

    1994-01-01

    A spatial auditory display was designed for separating the multiple communication channels usually heard over one ear to different virtual auditory positions. The single 19 foot rack mount device utilizes digital filtering algorithms to separate up to four communication channels. The filters use four different binaural transfer functions, synthesized from actual outer ear measurements, to impose localization cues on the incoming sound. Hardware design features include 'fail-safe' operation in the case of power loss, and microphone/headset interfaces to the mobile launch communication system in use at KSC. An experiment designed to verify the intelligibility advantage of the display used 130 different call signs taken from the communications protocol used at NASA KSC. A 6 to 7 dB intelligibility advantage was found when multiple channels were spatially displayed, compared to monaural listening. The findings suggest that the use of a spatial auditory display could enhance both occupational and operational safety and efficiency of NASA operations.

  14. Landing Hazard Avoidance Display

    NASA Technical Reports Server (NTRS)

    Abernathy, Michael Franklin (Inventor); Hirsh, Robert L. (Inventor)

    2016-01-01

    Landing hazard avoidance displays can provide rapidly understood visual indications of where it is safe to land a vehicle and where it is unsafe to land a vehicle. Color coded maps can indicate zones in two dimensions relative to the vehicles position where it is safe to land. The map can be simply green (safe) and red (unsafe) areas with an indication of scale or can be a color coding of another map such as a surface map. The color coding can be determined in real time based on topological measurements and safety criteria to thereby adapt to dynamic, unknown, or partially known environments.

  15. 77 FR 30451 - Safety Zone; Olcott Fireworks, Lake Ontario, Olcott, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-23

    ...-AA00 Safety Zone; Olcott Fireworks, Lake Ontario, Olcott, NY AGENCY: Coast Guard, DHS. ACTION: Notice... Ontario during the Olcott fireworks display. The safety zone established by this proposed rule is necessary to protect spectators, participants, and vessels from the hazards associated with firework display...

  16. A simulation evaluation of the engine monitoring and control system display

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.

    1990-01-01

    The Engine Monitoring and Control System (E-MACS) display is a new concept for an engine instrument display, the purpose of which is to provide an enhanced means for a pilot to control and monitor aircraft engine performance. It provides graphically-presented information about performance capabilities, current performance, and engine component or subsystem operational conditions relative to nominal conditions. The concept was evaluated by sixteen pilot-subjects against a traditional, state-of-the-art electronic engine display format. The results of this evaluation showed a substantial pilot preference for the E-MACS display relative to the traditional display. The results of the failure detection portion of the evaluation showed a 100 percent detection rate for the E-MACS display relative to a 57 percent rate for the traditional display. From these results, it is concluded that by providing this type of information in the cockpit, a reduction in pilot workload and an enhanced ability for detecting degraded or off-nominal conditions is probable, thus leading to an increase in operational safety.

  17. Testing optimum viewing conditions for mammographic image displays.

    PubMed

    Waynant, R W; Chakrabarti, K; Kaczmarek, R A; Dagenais, I

    1999-05-01

    The viewbox luminance and viewing room light level are important parameters in a medical film display, but these parameters have not had much attention. Spatial variations and too much room illumination can mask real signal or create the false perception of a signal. This presentation looks at how scotopic light sources and dark-adapted radiologists may identify more real diseases.

  18. Child safety seat and safety belt use among urban travelers.

    DOT National Transportation Integrated Search

    1984-01-01

    During nine days in June 1977 and nine in June 1983, four major metropolitan areas of Virginia were surveyed to determine whether safety restraints were being used by urban travelers. Observers stationed at selected signalized intersections displayed...

  19. A large flat panel multifunction display for military and space applications

    NASA Astrophysics Data System (ADS)

    Pruitt, James S.

    1992-09-01

    A flat panel multifunction display (MFD) that offers the size and reliability benefits of liquid crystal display technology while achieving near-CRT display quality is presented. Display generation algorithms that provide exceptional display quality are being implemented in custom VLSI components to minimize MFD size. A high-performance processor converts user-specified display lists to graphics commands used by these components, resulting in high-speed updates of two-dimensional and three-dimensional images. The MFD uses the MIL-STD-1553B data bus for compatibility with virtually all avionics systems. The MFD can generate displays directly from display lists received from the MIL-STD-1553B bus. Complex formats can be stored in the MFD and displayed using parameters from the data bus. The MFD also accepts direct video input and performs special processing on this input to enhance image quality.

  20. Automated selection of computed tomography display parameters using neural networks

    NASA Astrophysics Data System (ADS)

    Zhang, Di; Neu, Scott; Valentino, Daniel J.

    2001-07-01

    A collection of artificial neural networks (ANN's) was trained to identify simple anatomical structures in a set of x-ray computed tomography (CT) images. These neural networks learned to associate a point in an image with the anatomical structure containing the point by using the image pixels located on the horizontal and vertical lines that ran through the point. The neural networks were integrated into a computer software tool whose function is to select an index into a list of CT window/level values from the location of the user's mouse cursor. Based upon the anatomical structure selected by the user, the software tool automatically adjusts the image display to optimally view the structure.

  1. A timely reminder about stimulus display times and other presentation parameters on CRTs and newer technologies.

    PubMed

    Bauer, Ben

    2015-09-01

    Scientific experimentation requires specification and control of independent variables with accurate measurement of dependent variables. In Vision Sciences (here broadly including experimental psychology, cognitive neuroscience, psychophysics, and clinical vision), proper specification and control of stimulus rendering (already a thorny issue) may become more problematic as several newer display technologies replace cathode ray tubes (CRTs) in the lab. The present paper alerts researchers to spatiotemporal differences in display technologies and how these might affect various types of experiments. Parallels are drawn to similar challenges and solutions that arose during the change from cabinet-style tachistoscopes to computer driven CRT tachistoscopes. Technical papers outlining various strengths and limitations of several classes of display devices are introduced as a resource for the reader wanting to select appropriate displays for different presentation requirements. These papers emphasise the need to measure rather than assume display characteristics because manufacturers' specifications and software reports/settings may not correspond with actual performance. This is consistent with the call by several Vision Science and Psychological Science bodies to increase replications and increase detail in Method sections. Finally, several recent tachistoscope-based experiments, which focused on the same question but were implemented with different technologies, are compared for illustrative purposes. (c) 2015 APA, all rights reserved).

  2. Secure Display of Space-Exploration Images

    NASA Technical Reports Server (NTRS)

    Cheng, Cecilia; Thornhill, Gillian; McAuley, Michael

    2006-01-01

    Java EDR Display Interface (JEDI) is software for either local display or secure Internet distribution, to authorized clients, of image data acquired from cameras aboard spacecraft engaged in exploration of remote planets. ( EDR signifies experimental data record, which, in effect, signifies image data.) Processed at NASA s Multimission Image Processing Laboratory (MIPL), the data can be from either near-realtime processing streams or stored files. JEDI uses the Java Advanced Imaging application program interface, plus input/output packages that are parts of the Video Image Communication and Retrieval software of the MIPL, to display images. JEDI can be run as either a standalone application program or within a Web browser as a servlet with an applet front end. In either operating mode, JEDI communicates using the HTTP(s) protocol(s). In the Web-browser case, the user must provide a password to gain access. For each user and/or image data type, there is a configuration file, called a "personality file," containing parameters that control the layout of the displays and the information to be included in them. Once JEDI has accepted the user s password, it processes the requested EDR (provided that user is authorized to receive the specific EDR) to create a display according to the user s personality file.

  3. 75 FR 39163 - Safety Zone; Illinois River, Mile 119.7 to 120.3

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... completed. Because of the dangers posed by the pyrotechnics used in this fireworks display, the safety zone... the dangers posed by the pyrotechnics used in this fireworks display, the safety zone is necessary to...

  4. 77 FR 37356 - Safety Zone for Fireworks Display, Pamlico River; Washington, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-21

    ... fireworks display. Such hazards include obstructions to the waterway that may cause death, serious bodily... rule would not cause a taking of private property or otherwise have taking implications under Executive...

  5. Cockpit Displays to Support Hazard Awareness in Free Flight

    NASA Technical Reports Server (NTRS)

    Wickens, Christopher D.; Carbonari, Ron; Merwin, Dave; Morphew, Ephimia; OBrien, Janelle V.

    1997-01-01

    Three experiments are described which each examine different aspects of the formatting and integration of cockpit displays of traffic information to support pilots in traffic avoidance planning. The first two experiments compared two-dimensional (coplanar) with three-dimensional (perspective) versions of a cockpit display of traffic information. In Experiment 1, 30 certified flight instructors flew a series of traffic conflict detection and avoidance maneuvers around an intruder aircraft, sometimes in the presence of a second intruder. The results revealed an advantage for the coplanar display, particularly when there was vertical intruder behavior. In Experiment 2, 17 instructors flew with the coplanar and perspective formats when weather information was either overlaid or displayed separately. Again performance was best with the coplanar display, particularly when the weather data were overlaid. The results of both experiments are also discussed in ten-ns of the traffic maneuver stereotypes exhibited by the pilots. Experiment 3 examined the benefits of the two different predictor elements used in the coplanar displays of Experiments 1 and 2. The study was carried out in a multitask context. These elements were both found to improve safety (reduce actual and predicted conflicts) and to reduce workload, although the different elements affected workload in different ways. Neither predictor element imposed a cost to concurrent task performance.

  6. New DICOM extensions for softcopy and hardcopy display consistency.

    PubMed

    Eichelberg, M; Riesmeier, J; Kleber, K; Grönemeyer, D H; Oosterwijk, H; Jensch, P

    2000-01-01

    The DICOM standard defines in detail how medical images can be communicated. However, the rules on how to interpret the parameters contained in a DICOM image which deal with the image presentation were either lacking or not well defined. As a result, the same image frequently looks different when displayed on different workstations or printed on a film from various printers. Three new DICOM extensions attempt to close this gap by defining a comprehensive model for the display of images on softcopy and hardcopy devices: Grayscale Standard Display Function, Grayscale Softcopy Presentation State and Presentation Look Up Table.

  7. Format and basic geometry of a perspective display of air traffic for the cockpit

    NASA Technical Reports Server (NTRS)

    Mcgreevy, Michael Wallace; Ellis, Stephen R.

    1991-01-01

    The design and implementation of a perspective display of air traffic for the cockpit is discussed. Parameters of the perspective are variable and interactive so that the appearance of the projected image can be widely varied. This approach makes allowances for exploration of perspective parameters and their interactions. The display was initially used to study the cases of horizontal maneuver biases found in experiments involving a plan view air traffic display format. Experiments to determine the effect of perspective geometry on spatial judgements have evolved from the display program. Several scaling techniques and other adjustments to the perspective are used to tailor the geometry for effective presentation of 3-D traffic situations.

  8. Vertex Movement for Mission Status Graphics: A Polar-Star Display

    NASA Technical Reports Server (NTRS)

    Trujillo, Anna

    2002-01-01

    Humans are traditionally bad monitors, especially over long periods of time on reliable systems, and they are being called upon to do this more and more as systems become further automated. Because of this, there is a need to find a way to display the monitoring information to the human operator in such a way that he can notice pertinent deviations in a timely manner. One possible solution is to use polar-star displays that will show deviations from normal in a more salient manner. A polar-star display uses a polygon's vertices to report values. An important question arises, though, of how the vertices should move. This experiment investigated two particular issues of how the vertices should move: (1) whether the movement of the vertices should be continuous or discrete and (2) whether the parameters that made up each vertex should always move in one direction regardless of parameter sign or move in both directions indicating parameter sign. The results indicate that relative movement direction is best. Subjects performed better with this movement type and they subjectively preferred it to the absolute movement direction. As for movement type, no strong preferences were shown.

  9. 76 FR 77175 - New York Fun Factory Fireworks Display, Western Long Island Sound; Mamaroneck, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-12

    ...-AA00 New York Fun Factory Fireworks Display, Western Long Island Sound; Mamaroneck, NY AGENCY: Coast... in support of the New York Fun Factory Fireworks display. This action is necessary to provide for the... the Coast Guard to define regulatory safety zones. On May 10, 2012 New York Fun Factory Events is...

  10. Psycho-physiological effects of visual artifacts by stereoscopic display systems

    NASA Astrophysics Data System (ADS)

    Kim, Sanghyun; Yoshitake, Junki; Morikawa, Hiroyuki; Kawai, Takashi; Yamada, Osamu; Iguchi, Akihiko

    2011-03-01

    The methods available for delivering stereoscopic (3D) display using glasses can be classified as time-multiplexing and spatial-multiplexing. With both methods, intrinsic visual artifacts result from the generation of the 3D image pair on a flat panel display device. In the case of the time-multiplexing method, an observer perceives three artifacts: flicker, the Mach-Dvorak effect, and a phantom array. These only occur under certain conditions, with flicker appearing in any conditions, the Mach-Dvorak effect during smooth pursuit eye movements (SPM), and a phantom array during saccadic eye movements (saccade). With spatial-multiplexing, the artifacts are temporal-parallax (due to the interlaced video signal), binocular rivalry, and reduced spatial resolution. These artifacts are considered one of the major impediments to the safety and comfort of 3D display users. In this study, the implications of the artifacts for the safety and comfort are evaluated by examining the psychological changes they cause through subjective symptoms of fatigue and the depth sensation. Physiological changes are also measured as objective responses based on analysis of heart and brain activation by visual artifacts. Further, to understand the characteristics of each artifact and the combined effects of the artifacts, four experimental conditions are developed and tested. The results show that perception of artifacts differs according to the visual environment and the display method. Furthermore visual fatigue and the depth sensation are influenced by the individual characteristics of each artifact. Similarly, heart rate variability and regional cerebral oxygenation changes by perception of artifacts in conditions.

  11. Terrain Portrayal for Head-Down Displays Experiment

    NASA Technical Reports Server (NTRS)

    Hughes, Monica F.; Takallu, M. A.

    2002-01-01

    The General Aviation Element of the Aviation Safety Program's Synthetic Vision Systems (SVS) Project is developing technology to eliminate low visibility induced General Aviation (GA) accidents. SVS displays present computer generated 3-dimensional imagery of the surrounding terrain on the Primary Flight Display (PFD) to greatly enhance pilot's situation awareness (SA), reducing or eliminating Controlled Flight into Terrain, as well as Low-Visibility Loss of Control accidents. SVS-conducted research is facilitating development of display concepts that provide the pilot with an unobstructed view of the outside terrain, regardless of weather conditions and time of day. A critical component of SVS displays is the appropriate presentation of terrain to the pilot. An experimental study has been conducted at NASA Langley Research Center (LaRC) to explore and quantify the relationship between the realism of the terrain presentation and resulting enhancements of pilot SA and pilot performance. Composed of complementary simulation and flight test efforts, Terrain Portrayal for Head-Down Displays (TP-HDD) experiments will help researchers evaluate critical terrain portrayal concepts. The experimental effort is to provide data to enable design trades that optimize SVS applications, as well as develop requirements and recommendations to facilitate the certification process. This paper focuses on the experimental set-up and preliminary qualitative results of the TP-HDD simulation experiment. In this experiment a fixed based flight simulator was equipped with various types of Head Down flight displays, ranging from conventional round dials (typical of most GA aircraft) to glass cockpit style PFD's. The variations of the PFD included an assortment of texturing and Digital Elevation Model (DEM) resolution combinations. A test matrix of 10 terrain display configurations (in addition to the baseline displays) were evaluated by 27 pilots of various backgrounds and experience levels

  12. Integrated helmet mounted display concepts for air combat

    NASA Technical Reports Server (NTRS)

    Clark, Joseph W.

    1995-01-01

    A piloted simulation study was conducted in a dome simulator to evaluate several Helmet Mounted Display (HMD) formats developed as part of the NASA High Alpha Technology Program (HATP). The display formats conveyed energy management, spatial orientation, and weapons management information. The HMD format was compared to a generic Heads Up Display (HUD) typical of current operational fighter aircraft. Pilots were tasked to spend as much time in a weapon solution as possible, to have the correct weapon selected for the envelope they were in, and to avoid the adversary's weapon envelope as much as possible. Several different displays were tested individually and simultaneously to see how separate display concepts coexisted. Objective results showed that the ability for the pilot to select the correct weapon for the envelope he was in increased by 50% in a moderate workload condition and 90% in a high workload condition with the HMD format. In the post-test comments pilots generally favored the helmet display formats over the HUD formats with a few instances where pilots preferred a simple numeric readout of the parameter. Short term exposure effects of the HMD on visual acuity were also measured and showed no advers results.

  13. Circular displays: control/display arrangements and stereotype strength with eight different display locations.

    PubMed

    Chan, Alan H S; Hoffmann, Errol R

    2015-01-01

    Two experiments are reported that were designed to investigate control/display arrangements having high stereotype strengths when using circular displays. Eight display locations relative to the operator and control were tested with rotational and translational controls situated on different planes according to the Frame of Reference Transformation Tool (FORT) model of Wickens et al. (2010). (Left. No, Right! Development of the Frame of Reference Transformation Tool (FORT), Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting, 54: 1022-1026). In many cases, there was little effect of display locations, indicating the importance of the Worringham and Beringer (1998. Directional stimulus-response compatibility: a test of three alternative principles. Ergonomics, 41(6), 864-880) Visual Field principle and an extension of this principle for rotary controls (Hoffmann and Chan (2013). The Worringham and Beringer 'visual field' principle for rotary controls. Ergonomics, 56(10), 1620-1624). The initial indicator position (12, 3, 6 and 9 o'clock) had a major effect on control/display stereotype strength for many of the six controls tested. Best display/control arrangements are listed for each of the different control types (rotational and translational) and for the planes on which they are mounted. Data have application where a circular display is used due to limited display panel space and applies to space-craft, robotics operators, hospital equipment and home appliances. Practitioner Summary: Circular displays are often used when there is limited space available on a control panel. Display/control arrangements having high stereotype strength are listed for four initial indicator positions. These arrangements are best for design purposes.

  14. Efficacy, safety, predictability, aberrations and corneal biomechnical parameters after SMILE and FLEx: Meta-analysis.

    PubMed

    Ma, Jing; Cao, Nan-Jue; Xia, Li-Kun

    2016-01-01

    To identify possible differences of efficacy, safety, predictability, higher-order aberrations and corneal biomechnical parameters after small-incision lenticule extraction (SMILE) and femtosecond lenticule extraction (FLEx). A systematic literature retrieval was conducted in Medline, Embase and the Cochrane Library, up to October, 2015. The included studies were subject to a Meta-analysis. Comparison between SMILE and FLEx was measured as pooled odds ratio (OR) or weighted mean differences (WMD). Of 95% confidence intervals (CI) were used to analyze data. A total of seven studies were included. Firstly, there were no differences in uncorrected distance visual acuity (UDVA) 20/20 or better (OR, 1.37; 95% CI, 0.69 to 2.69; P=0.37) and logMAR UDVA (WMD, -0.02; 95% CI, -0.05 to 0.01; P=0.17) after SMILE versus FLEx. We found no differences in corrected distance visual acuity (CDVA) unchanged (OR, 0.98; 95% CI, 0.46 to 2.11; P=0.97) and logMAR CDVA (WMD, -0.00; 95% CI, -0.01 to 0.01; P=0.90) either. Secondly, we found no differences in refraction within ±1.00 D (OR, 0.98; 95% CI, 0.13 to 7.28; P=0.99) and ±0.50 D (OR, 1.62; 95% CI, 0.62 to 4.28; P=0.33) of target postoperatively. Thirdly, for higher-order aberrations, we found no differences in the total higher-order aberrations (WMD, -0.04; 95% CI, -0.09 to 0.01; P=0.14), coma (WMD, -0.04; 95% CI, -0.09 to 0.01; P=0.11), spherical (WMD, 0.01; 95% CI, -0.02 to 0.03; P=0.60) and trefoil (WMD, -0.00; 95% CI, -0.04 to 0.03; P=0.76). Furthermore, for corneal biomechanical parameters, we also found no differences (WMD, 0.08; 95% CI, -0.17 to 0.33; P=0.54) after SMILE versus FLEx. There are no statistically differences in efficacy, safety, predictability, higher-order aberrations and corneal biomechnical parameters postoperative between SMILE and FLEx.

  15. Reconfigurable Auditory-Visual Display

    NASA Technical Reports Server (NTRS)

    Begault, Durand R. (Inventor); Anderson, Mark R. (Inventor); McClain, Bryan (Inventor); Miller, Joel D. (Inventor)

    2008-01-01

    System and method for visual and audible communication between a central operator and N mobile communicators (N greater than or equal to 2), including an operator transceiver and interface, configured to receive and display, for the operator, visually perceptible and audibly perceptible signals from each of the mobile communicators. The interface (1) presents an audible signal from each communicator as if the audible signal is received from a different location relative to the operator and (2) allows the operator to select, to assign priority to, and to display, the visual signals and the audible signals received from a specified communicator. Each communicator has an associated signal transmitter that is configured to transmit at least one of the visual signals and the audio signal associated with the communicator, where at least one of the signal transmitters includes at least one sensor that senses and transmits a sensor value representing a selected environmental or physiological parameter associated with the communicator.

  16. Future of photorefractive based holographic 3D display

    NASA Astrophysics Data System (ADS)

    Blanche, P.-A.; Bablumian, A.; Voorakaranam, R.; Christenson, C.; Lemieux, D.; Thomas, J.; Norwood, R. A.; Yamamoto, M.; Peyghambarian, N.

    2010-02-01

    The very first demonstration of our refreshable holographic display based on photorefractive polymer was published in Nature early 20081. Based on the unique properties of a new organic photorefractive material and the holographic stereography technique, this display addressed a gap between large static holograms printed in permanent media (photopolymers) and small real time holographic systems like the MIT holovideo. Applications range from medical imaging to refreshable maps and advertisement. Here we are presenting several technical solutions for improving the performance parameters of the initial display from an optical point of view. Full color holograms can be generated thanks to angular multiplexing, the recording time can be reduced from minutes to seconds with a pulsed laser, and full parallax hologram can be recorded in a reasonable time thanks to parallel writing. We also discuss the future of such a display and the possibility of video rate.

  17. Evaluation of a Head-Worn Display System as an Equivalent Head-Up Display for Low Visibility Commercial Operations

    NASA Technical Reports Server (NTRS)

    Arthur, Jarvis (Trey) J., III; Shelton, Kevin J.; Prinzel, Lawrence J.; Nicholas, Stephanie N.; Williams, Steven P.; Ellis, Kyle E.; Jones, Denise R.; Bailey, Randall E.; Harrison, Stephanie J.; Barnes, James R.

    2017-01-01

    Research, development, test, and evaluation of fight deck interface technologies is being conducted by the National Aeronautics and Space Administration (NASA) to proactively identify, develop, and mature tools, methods, and technologies for improving overall aircraft safety of new and legacy vehicles operating in the Next Generation Air Transportation System (NextGen). One specific area of research was the use of small Head-Worn Displays (HWDs) to serve as a possible equivalent to a Head-Up Display (HUD). A simulation experiment and a fight test were conducted to evaluate if the HWD can provide an equivalent level of performance to a HUD. For the simulation experiment, airline crews conducted simulated approach and landing, taxi, and departure operations during low visibility operations. In a follow-on fight test, highly experienced test pilots evaluated the same HWD during approach and surface operations. The results for both the simulation and fight tests showed that there were no statistical differences in the crews' performance in terms of approach, touchdown and takeoff; but, there are still technical hurdles to be overcome for complete display equivalence including, most notably, the end-to-end latency of the HWD system.

  18. Terrain Portrayal for Head-Down Displays Flight Test

    NASA Technical Reports Server (NTRS)

    Hughes, Monica F.; Glaab, Louis J.

    2003-01-01

    The Synthetic Vision Systems General Aviation (SVS-GA) element of NASA's Aviation Safety Program is developing technology to eliminate low visibility induced General Aviation (GA) accidents through the application of synthetic vision techniques. SVS displays present computer generated 3-dimensional imagery of the surrounding terrain to greatly enhance pilot's situation awareness (SA), reducing or eliminating Controlled Flight into Terrain (CFIT), as well as Low-Visibility Loss of Control (LVLOC) accidents. In addition to substantial safety benefits, SVS displays have many potential operational benefits that can lead to flight in instrument meteorological conditions (IMC) resembling those conducted in visual meteorological conditions (VMC). Potential benefits could include lower landing minimums, more approach options, reduced training time, etc. SVS conducted research will develop display concepts providing the pilot with an unobstructed view of the outside terrain, regardless of weather conditions and time of day. A critical component of SVS displays is the appropriate presentation of terrain to the pilot. The relationship between the realism of the terrain presentation and resulting enhancements of pilot SA and pilot performance has been largely undefined. Comprised of coordinated simulation and flight test efforts, the terrain portrayal for head-down displays (TP-HDD) test series examined the effects of two primary elements of terrain portrayal: variations of digital elevation model (DEM) resolution and terrain texturing. Variations in DEM resolution ranged from sparsely spaced (30 arc-sec/2,953ft) to very closely spaced data (1 arc-sec/98 ft). Variations in texture involved three primary methods: constant color, elevation-based generic, and photo-realistic, along with a secondary depth cue enhancer in the form of a fishnet grid overlay. The TP-HDD test series was designed to provide comprehensive data to enable design trades to optimize all SVS applications, as

  19. 77 FR 38482 - Safety Zone; Oswego Independence Celebration Fireworks, Oswego Harbor, Oswego, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ...-AA00 Safety Zone; Oswego Independence Celebration Fireworks, Oswego Harbor, Oswego, NY AGENCY: Coast... Oswego Harbor during the Oswego Independence Celebration Fireworks display. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with a fireworks display. DATES...

  20. 78 FR 38200 - Safety Zone; Fourth of July Fireworks Display, Glenbrook NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-26

    ... position 39[deg]05'18'' N, 119[deg]56'34'' W (NAD 83). Upon the commencement of the 20 minute fireworks... 39[deg]05'18'' N, 119[deg]56'34'' W (NAD 83) for the Fourth of July Fireworks Display in Glenbrook...

  1. Flatbed-type 3D display systems using integral imaging method

    NASA Astrophysics Data System (ADS)

    Hirayama, Yuzo; Nagatani, Hiroyuki; Saishu, Tatsuo; Fukushima, Rieko; Taira, Kazuki

    2006-10-01

    We have developed prototypes of flatbed-type autostereoscopic display systems using one-dimensional integral imaging method. The integral imaging system reproduces light beams similar of those produced by a real object. Our display architecture is suitable for flatbed configurations because it has a large margin for viewing distance and angle and has continuous motion parallax. We have applied our technology to 15.4-inch displays. We realized horizontal resolution of 480 with 12 parallaxes due to adoption of mosaic pixel arrangement of the display panel. It allows viewers to see high quality autostereoscopic images. Viewing the display from angle allows the viewer to experience 3-D images that stand out several centimeters from the surface of the display. Mixed reality of virtual 3-D objects and real objects are also realized on a flatbed display. In seeking reproduction of natural 3-D images on the flatbed display, we developed proprietary software. The fast playback of the CG movie contents and real-time interaction are realized with the aid of a graphics card. Realization of the safety 3-D images to the human beings is very important. Therefore, we have measured the effects on the visual function and evaluated the biological effects. For example, the accommodation and convergence were measured at the same time. The various biological effects are also measured before and after the task of watching 3-D images. We have found that our displays show better results than those to a conventional stereoscopic display. The new technology opens up new areas of application for 3-D displays, including arcade games, e-learning, simulations of buildings and landscapes, and even 3-D menus in restaurants.

  2. Structural Analysis Peer Review for the Static Display of the Orbiter Atlantis at the Kennedy Space Center Visitors Center

    NASA Technical Reports Server (NTRS)

    Minute, Stephen A.

    2013-01-01

    Mr. Christopher Miller with the Kennedy Space Center (KSC) NASA Safety & Mission Assurance (S&MA) office requested the NASA Engineering and Safety Center's (NESC) technical support on March 15, 2012, to review and make recommendations on the structural analysis being performed for the Orbiter Atlantis static display at the KSC Visitor Center. The principal focus of the assessment was to review the engineering firm's structural analysis for lifting and aligning the orbiter and its static display configuration

  3. 78 FR 40399 - Safety Zone; Fifth Coast Guard District Fireworks Displays, Delaware River; Philadelphia, PA.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-05

    ... Philadelphia, Pennsylvania. The fireworks display is normally held on July 4th, but this year it will be held... America sponsors an annual fireworks display held on July 4th over the waters of Delaware River... annually on July 4th. However, this year, the fireworks event will be held on July 6, 2013. A fleet of...

  4. Analysis of the viewing zone of the Cambridge autostereoscopic display.

    PubMed

    Dodgson, N A

    1996-04-01

    The Cambridge autostereoscopic three-dimensional display is a time-multiplexed device that gives both stereo and movement parallax to the viewer without the need for any special glasses. This analysis derives the size and position of the fully illuminated, and hence useful, viewing zone for a Cambridge display. The viewing zone of such a display is shown to be completely determined by four parameters: the width of the screen, the optimal distance of the viewer from the screen, the width over which an image can be seen across the whole screen at this optimal distance, and the number of views. A display's viewing zone can thus be completely described without reference to the internal implementation of the device. An equation that describes what the eye sees from any position in front of the display is derived. The equations derived can be used in both the analysis and design of this type of time-multiplexed autostereoscopic display.

  5. Conceptual Design Standards for eXternal Visibility System (XVS) Sensor and Display Resolution

    NASA Technical Reports Server (NTRS)

    Bailey, Randall E.; Wilz, Susan J.; Arthur, Jarvis J, III

    2012-01-01

    NASA is investigating eXternal Visibility Systems (XVS) concepts which are a combination of sensor and display technologies designed to achieve an equivalent level of safety and performance to that provided by forward-facing windows in today s subsonic aircraft. This report provides the background for conceptual XVS design standards for display and sensor resolution. XVS resolution requirements were derived from the basis of equivalent performance. Three measures were investigated: a) human vision performance; b) see-and-avoid performance and safety; and c) see-to-follow performance. From these three factors, a minimum but perhaps not sufficient resolution requirement of 60 pixels per degree was shown for human vision equivalence. However, see-and-avoid and see-to-follow performance requirements are nearly double. This report also reviewed historical XVS testing.

  6. The effect of display movement angle, indicator type and display location on control/display stereotype strength.

    PubMed

    Hoffmann, Errol R; Chan, Alan H S

    2017-08-01

    Much research on stereotype strength relating display and control movements for displays moving in the vertical or horizontal directions has been reported. Here we report effects of display movement angle, where the display moves at angles (relative to the vertical) of between 0° and 180°. The experiment used six different controls, four display locations relative to the operator and three types of indicator. Indicator types were included because of the strong effects of the 'scale-side principle' that are variable with display angle. A directional indicator had higher stereotype strength than a neutral indicator, and showed an apparent reversal in control/display stereotype direction beyond an angle of 90°. However, with a neutral indicator this control reversal was not present. Practitioner Summary: The effects of display moving at angles other than the four cardinal directions, types of control, location of display and types of indicator are investigated. Indicator types (directional and neutral) have an effect on stereotype strength and may cause an apparent control reversal with change of display movement angle.

  7. High Brightness and Color Contrast Displays Constructed from Nematic Droplet/Polymer Films Incorporating Pleochroic Dyes

    NASA Astrophysics Data System (ADS)

    Drzaic, Paul S.; Wiley, Richard C.; McCoy, James A.

    1989-07-01

    A new class of high-brightness, high color contrast reflective-mode displays can be constructed from nematic droplet/polymer (NCAP) films. In these films, a high order parameter pleochroic dye can be dissolved in the nematic, leading to a film with both controllable absorbance and scattering. The physics behind the operation of these films is discussed. The intrinsic optical order parameter of a guest-host mixture is related to the performance of the NCAP film. It is shown that the scattering effects inherent in these films can be used to amplify the effects of the controllable dye absorbance, leading to excellent optical performance for a reflective-mode display. A typical construction of a display cell is given, and examples of applications are discussed. Touch switches may easily be fabricated within the display, so that an integrated control/display module can be constructed.

  8. Comparative Study of the MTFA, ICS, and SQRI Image Quality Metrics for Visual Display Systems

    DTIC Science & Technology

    1991-09-01

    reasonable image quality predictions across select display and viewing condition parameters. 101 6.0 REFERENCES American National Standard for Human Factors Engineering of ’ Visual Display Terminal Workstations . ANSI

  9. [Display technologies for augmented reality in medical applications].

    PubMed

    Eck, Ulrich; Winkler, Alexander

    2018-04-01

    One of the main challenges for modern surgery is the effective use of the many available imaging modalities and diagnostic methods. Augmented reality systems can be used in the future to blend patient and planning information into the view of surgeons, which can improve the efficiency and safety of interventions. In this article we present five visualization methods to integrate augmented reality displays into medical procedures and the advantages and disadvantages are explained. Based on an extensive literature review the various existing approaches for integration of augmented reality displays into medical procedures are divided into five categories and the most important research results for each approach are presented. A large number of mixed and augmented reality solutions for medical interventions have been developed as research prototypes; however, only very few systems have been tested on patients. In order to integrate mixed and augmented reality displays into medical practice, highly specialized solutions need to be developed. Such systems must comply with the requirements with respect to accuracy, fidelity, ergonomics and seamless integration into the surgical workflow.

  10. 78 FR 15293 - Safety Zone; St. Patrick's Day Fireworks; Manitowoc River, Manitowoc, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-11

    ...-AA00 Safety Zone; St. Patrick's Day Fireworks; Manitowoc River, Manitowoc, WI AGENCY: Coast Guard, DHS... will hold its annual St. Patrick's Day fireworks display. This fireworks display will be launched from... as follows: Sec. 165.T09-0116 Safety Zone; St. Patrick's Day Fireworks; Manitowoc River, Manitowoc...

  11. Advanced Information Systems Design: Technical Basis and Human Factors Review Guidance

    DTIC Science & Technology

    2000-03-01

    D ., Wise, J ., and Hanes, L., "An Evaluation of Nuclear Power Plant Safety Parameter Display Systems," Proceedings of the Human Factors Society 25th...Reactor (PWR) (Source: Reprinted with permission from Woods, D ., Wise, J ., and Hanes, L., "An Evaluation of Nuclear Power Plant Safety Parameter...Dials display rpCJni?3 (b) Fluid-Tanks display B (c) Seesaw display I 72 CF \\^- J B ’ V ’II ’ ( d ) Mimic display B E * • \\ ^r 7

  12. Telerobotics - Display, control, and communication problems

    NASA Technical Reports Server (NTRS)

    Stark, Lawrence; Kim, Won-Soo; Tendick, Frank; Hannaford, Blake; Ellis, Stephen

    1987-01-01

    An experimental telerobotics simulation is described suitable for studying human operator (HO) performance. Simple manipulator pick-and-place and tracking tasks allowed quantitative comparison of a number of calligraphic display viewing conditions. An enhanced perspective display was effective with a reference line from target to base, with or without a complex three-dimensional grid framing the view. This was true especially if geometrical display parameters such as azimuth and elevation were arranged to be near optimal. Quantitative comparisons were made possible, utilizing control performance measures such as root mean square error. There was a distinct preference for controlling the manipulator in end-effector Cartesian space for the primitive pick-and-place task, rather than controlling joint angles and then, via direct kinematis, the end-effector position. An introduced communication delay was found to produce decrease in performance. In considerable part, this difficulty could be compensated for by preview control information. The fact that neurological control of normal human movement contains a sampled data period of 0.2 s may relate to this robustness of HO control to delay.

  13. A Review of Head-Worn Display Research at NASA Langley Research Center

    NASA Technical Reports Server (NTRS)

    Arthur, Jarvis (Trey) J., III; Bailey, Randall E.; Williams, Steven P.; Prinzel, Lawrence J., III; Shelton, Kevin J.; Jones, Denise R.; Houston, Vincent

    2015-01-01

    NASA Langley has conducted research in the area of helmet-mounted/head-worn displays over the past 30 years. Initially, NASA Langley's research focused on military applications, but recently it has conducted a line of research in the area of head-worn displays for commercial and business aircraft. This work has revolved around numerous simulation experiments as well as flight tests to develop technology and data for industry and regulatory guidance. The paper summarizes the results of NASA's helmet-mounted/head-worn display research. Of note, the work tracks progress in wearable collimated optics, head tracking, latency reduction, and weight. The research lends credence that a small, sunglasses-type form factor of the head-worn display would be acceptable to commercial pilots, and this goal is now becoming technologically feasible. The research further suggests that a head-worn display may serve as an "equivalent" Head-Up Display (HUD) with safety, operational, and cost benefits. "HUD equivalence" appears to be the economic avenue by which head-worn displays can become main-stream on the commercial and business aircraft flight deck. If this happens, NASA's research suggests that additional operational benefits using the unique capabilities of the head-worn display can open up new operational paradigms.

  14. A review of head-worn display research at NASA Langley Research Center

    NASA Astrophysics Data System (ADS)

    Arthur, Jarvis J.; Bailey, Randall E.; Williams, Steven P.; Prinzel, Lawrence J.; Shelton, Kevin J.; Jones, Denise R.; Houston, Vincent

    2015-05-01

    NASA Langley has conducted research in the area of helmet-mounted/head-worn displays over the past 30 years. Initially, NASA Langley's research focused on military applications, but recently has conducted a line of research in the area of head-worn displays for commercial and business aircraft. This work has revolved around numerous simulation experiments as well as flight tests to develop technology and data for industry and regulatory guidance. The paper summarizes the results of NASA's helmet-mounted/head-worn display research. Of note, the work tracks progress in wearable collimated optics, head tracking, latency reduction, and weight. The research lends credence that a small, sunglasses-type form factor of the head-worn display would be acceptable to commercial pilots, and this goal is now becoming technologically feasible. The research further suggests that a head-worn display may serve as an "equivalent" Head-Up Display (HUD) with safety, operational, and cost benefits. "HUD equivalence" appears to be the economic avenue by which head-worn displays can become main-stream on the commercial and business aircraft flight deck. If this happens, NASA's research suggests that additional operational benefits using the unique capabilities of the head-worn display can open up new operational paradigms.

  15. 78 FR 27304 - Safety Zone; Melrose Pyrotechnics Fireworks Display; Chicago Harbor, Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-10

    ... any novel legal or policy issues. The safety zone created by this rule will be small and enforced for... through the safety zone when permitted by the Captain of the Port. 2. Impact on Small Entities Under the... entities. The Coast Guard certifies under 5 U.S.C. 605(b) that this proposed rule will not have a...

  16. Updateable 3D Display Using Large Area Photorefractive Polymer Devices

    DTIC Science & Technology

    2013-04-01

    across the thin PR layer. The critical parameters for the buffer layer are: transparent over the range 400nm to 800nm, high dielectric strength , ease of...Holographic 3D Display for Telepresence". Holo- pack.Holo- print 2011, November 9th 2011, (Las-Vegas, NV).  J. Thomas et al., "Recent advances in...AFRL-OSR-VA-TR-2013-0199 Updateable 3D Display Using Large Area Photofractive Polymer Devics Pierre Alexandre Blanche TIPD

  17. Cockpit displayed traffic information and distributed management in air traffic control

    NASA Technical Reports Server (NTRS)

    Kreifeldt, J. G.

    1980-01-01

    A graphical display of information (such as surrounding aircraft and navigation routes) in the cockpit on a cathode ray tube has been proposed for improving the safety, orderliness, and expeditiousness of the air traffic control system. An investigation of this method at NASA-Ames indicated a large reduction in controller verbal work load without increasing pilot verbal load; the visual work may be increased. The cockpit displayed traffic and navigation information system reduced response delays permitting pilots to maintain their spacing more closely and precisely than when depending entirely on controller-issued radar vectors and speed command.

  18. Margin of Safety Definition and Examples Used in Safety Basis Documents and the USQ Process

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Beaulieu, R. A.

    The Nuclear Safety Management final rule, 10 CFR 830, provides an undefined term, margin of safety (MOS). Safe harbors listed in 10 CFR 830, Table 2, such as DOE-STD-3009 use but do not define the term. This lack of definition has created the need for the definition. This paper provides a definition of MOS and documents examples of MOS as applied in a U.S. Department of Energy (DOE) approved safety basis for an existing nuclear facility. If we understand what MOS looks like regarding Technical Safety Requirements (TSR) parameters, then it helps us compare against other parameters that do notmore » involve a MOS. This paper also documents parameters that are not MOS. These criteria could be used to determine if an MOS exists in safety basis documents. This paper helps DOE, including the National Nuclear Security Administration (NNSA) and its contractors responsible for the safety basis improve safety basis documents and the unreviewed safety question (USQ) process with respect to MOS.« less

  19. 77 FR 42644 - Safety Zone; Canal Fest of the Tonawandas, Erie Canal, Tonawanda, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-20

    .... ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the... Canal during the Canal Fest of the Tonawandas Fireworks display. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with a fireworks display. DATES: This...

  20. High-performance large-area AMLCD avionic display module

    NASA Astrophysics Data System (ADS)

    Syroid, Daniel D.; Hansen, Glenn A.

    1995-06-01

    There is a need for a reliable source of high performance large area sunlight readable active matrix liquid crystal displays (AMLCDs) for avionic and military land vehicle applications. Image Quest has developed an avionic display module (ADM) to demonstrate the capability to produce high performance avionic displays to satisfy this need. The ADM is a large area (6.24 X 8.32 inch) display with VGA compatible interface, 640 X 480 color pixels and 64 gray shades per primary color. The display features excellent color discrimination in full sunlight due to a saturated color gamut, very low specular reflectance (< 1%) and high output white luminance (200 fL). The ADM is designed from the glass up to fully meet the avionic and military application and environment. Control over all the display performance parameters including contrast, transmission, chroma, resolution, active size and packaging configuration is ensured because Image Quest produces all of the critical elements of the display. These elements include the a-Si TFT AMLCD glass, RGB color filter matrix, bonding of folded back driver TABs, anti-reflective cover glass, LC heater and integration of high luminance hot cathode backlight with thermal controls. The display features rugged compact packaging, 2000:1 luminance dimming range and wide operating temperature range (-40 to +71 $DRGC). In the immediate future Image Quest plans to expand the development efforts to other similar custom high resolution and high performance avionic display module configurations including 4 X 4 inch delta triad, 6.7 X 6.7 inch delta triad and 16.5 inch diagonal with 1280 X 1024 pixels. Image Quest can deliver up to 10,000 displays per year on a timely basis at a reasonable cost.

  1. Open-refrigerated retail display case temperature profile and its impact on product quality and microbiota of stored baby spinach

    USDA-ARS?s Scientific Manuscript database

    Open-refrigerated display cabinets are widely used in supermarkets and grocery chains around the globe. However, the temperature conditions in these display cases are variable which may impact product quality and safety. Therefore, we investigated the quality and microbiological populations of bagge...

  2. Evaluation of Synthetic Vision Display Concepts for Improved Awareness in Unusual Attitude Recovery Scenarios

    NASA Technical Reports Server (NTRS)

    Nicholas, Stephanie

    2016-01-01

    A recent study conducted by the Commercial Aviation Safety Team (CAST) determined 40 percent of all fixed-wing fatal accidents, between 2001 and 2011, were caused by Loss-of-Control (LOC) in flight (National Transportation Safety Board, 2015). Based on their findings, CAST recommended manufacturers develop and implement virtual day-visual meteorological conditions (VMC) display systems, such as synthetic vision or equivalent systems (CAST, 2016). In a 2015 simulation study conducted at NASA Langley Research Center (LaRC), researchers gathered to test and evaluate virtual day-VMC displays under realistic flight operation scenarios capable of inducing reduced attention states in pilots. Each display concept was evaluated to determine its efficacy to improve attitude awareness. During the experiment, Evaluation Pilots (EPs) were shown the following three display concepts on the Primary Flight Display (PFD): Baseline, Synthetic Vision (SV) with color gradient, and SV with texture. The baseline configuration was a standard, conventional 'blue over brown' display. Experiment scenarios were simulated over water to evaluate Unusual Attitude (UA) recovery over 'featureless terrain' environments. Thus, the SV with color gradient configuration presented a 'blue over blue' display with a linear blue color progression, to differentiate attitude changes between sky and ocean. The SV with texture configuration presented a 'blue over blue' display with a black checkerboard texture atop a synthetic ocean. These displays were paired with a Background Attitude Indicator (BAI) concept. The BAI was presented across all four Head-Down Displays (HDDs), displaying a wide field-of-view blue-over-blue attitude indicator. The BAI aligned with the PFD and showed through the background of the navigation displays with opaque transparency. Each EP participated in a two-part experiment series with a total seventy-five trial runs: Part I included a set of twenty-five Unusual Attitude Recovery (UAR

  3. Clinicians' views on displaying cost information to increase clinician cost-consciousness.

    PubMed

    Kruger, Jenna F; Chen, Alice Hm; Rybkin, Alex; Leeds, Kiren; Frosch, Dominick L; Goldman, Elizabeth

    2014-01-01

    To evaluate 1) clinician attitudes towards incorporating cost information into decision making when ordering imaging studies; and 2) clinician reactions to the display of Medicare reimbursement information for imaging studies at clinician electronic order entry. Focus group study with inductive thematic analysis. We conducted focus groups of primary care clinicians and subspecialty physicians (nephrology, pulmonary, and neurology) (N = 50) who deliver outpatient care in 12 hospital-based clinics and community health centers in an urban safety net health system. We analyzed focus group transcripts using an inductive framework to identify emergent themes and illustrative quotations. Clinicians believed that their knowledge of healthcare costs was low and wanted access to relevant cost information for reference. However, many clinicians believed it was inappropriate and unethical to consider costs in individual patient care decisions. Among clinicians' negative reactions toward displaying costs at order entry, 4 underlying themes emerged: 1) belief that ordering is already limited to clinically necessary tests; 2) importance of prioritizing responsibility to patients above that to the healthcare system; 3) concern about worsening healthcare disparities; and 4) perceived lack of accountability for healthcare costs in the system. Although clinicians want relevant cost information, many voiced concerns about displaying cost information at clinician order entry in safety net health systems. Alternative approaches to increasing cost-consciousness may be more acceptable to clinicians.

  4. Flat panel displays in the helmet-mounted display

    NASA Astrophysics Data System (ADS)

    Bartlett, Christopher T.; Freeman, Jonathan P.

    2002-08-01

    The Helmet Mounted Display has been in development for over 25 years and with few exceptions those systems in service have incorporated a miniature Cathode Ray Tube as the display source. The exceptions have been the use of Light Emitting Diodes in Helmet Sighting displays. The argument for Flat Panel Displays has been well rehearsed and this paper provides a summary of the available technologies but with a rationale for a decision to use Reflective Liquid Crystal devices. The Paper then describes sources of illumination and derives the luminance required from that source.

  5. Model-Based Method for Terrain-Following Display Design

    DTIC Science & Technology

    1989-06-15

    data into a more compact set of model parameters. These model parameters provide insights into the interpretation of the experimental results as well...2.8 presents the VSD display, and is taken from figure 1.95 of the B-IB Flight Manual , NA-77-400. There are two primary elements in the VSD: 1) the...baseline VSD based on figures such as these from the B-lB Flight Manual , a video tape of an operating VSD in the engineering - 21 - research simulator, and

  6. Performance tests and quality control of cathode ray tube displays.

    PubMed

    Roehrig, H; Blume, H; Ji, T L; Browne, M

    1990-08-01

    Spatial resolution, noise, characteristic curve, and absolute luminance are the essential parameters that describe physical image quality of a display. This paper presents simple procedures for assessing the performance of a cathode ray tube (CRT) in terms of these parameters as well as easy set up techniques. The procedures can be used in the environment where the CRT is used. The procedures are based on a digital representation of the Society of Motion Pictures and Television Engineers pattern plus a few simple other digital patterns. Additionally, measurement techniques are discussed for estimating brightness uniformity, veiling glare, and distortion. Apart from the absolute luminance, all performance features can be assessed with an uncalibrated photodetector and the eyes of a human observer. The measurement techniques especially enable the user to perform comparisons of different display systems.

  7. 78 FR 38837 - Safety Zone; Fifth Coast Guard District Fireworks Displays, Barnegat Bay; Barnegat Township, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-28

    ... Township, New Jersey. The fireworks display is normally held on July 4th, but this year it will be held on... 4th over the waters of Barnegat Bay, Barnegat Township, New Jersey. The Table to Sec. 165.506, at... event. In the Table, this fireworks display occurs annually on July 4th. However, this year, the...

  8. 9 CFR 355.35 - Label information to be displayed on principal panel.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Label information to be displayed on principal panel. 355.35 Section 355.35 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE... AND VOLUNTARY INSPECTION AND CERTIFICATION CERTIFIED PRODUCTS FOR DOGS, CATS, AND OTHER CARNIVORA...

  9. 9 CFR 355.35 - Label information to be displayed on principal panel.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Label information to be displayed on principal panel. 355.35 Section 355.35 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE... AND VOLUNTARY INSPECTION AND CERTIFICATION CERTIFIED PRODUCTS FOR DOGS, CATS, AND OTHER CARNIVORA...

  10. Diffraction effects incorporated design of a parallax barrier for a high-density multi-view autostereoscopic 3D display.

    PubMed

    Yoon, Ki-Hyuk; Ju, Heongkyu; Kwon, Hyunkyung; Park, Inkyu; Kim, Sung-Kyu

    2016-02-22

    We present optical characteristics of view image provided by a high-density multi-view autostereoscopic 3D display (HD-MVA3D) with a parallax barrier (PB). Diffraction effects that become of great importance in such a display system that uses a PB, are considered in an one-dimensional model of the 3D display, in which the numerical simulation of light from display panel pixels through PB slits to viewing zone is performed. The simulation results are then compared to the corresponding experimental measurements with discussion. We demonstrate that, as a main parameter for view image quality evaluation, the Fresnel number can be used to determine the PB slit aperture for the best performance of the display system. It is revealed that a set of the display parameters, which gives the Fresnel number of ∼ 0.7 offers maximized brightness of the view images while that corresponding to the Fresnel number of 0.4 ∼ 0.5 offers minimized image crosstalk. The compromise between the brightness and crosstalk enables optimization of the relative magnitude of the brightness to the crosstalk and lead to the choice of display parameter set for the HD-MVA3D with a PB, which satisfies the condition where the Fresnel number lies between 0.4 and 0.7.

  11. Focused ultrasound-mediated noninvasive blood-brain barrier modulation: preclinical examination of efficacy and safety in various sonication parameters.

    PubMed

    Shin, Jaewoo; Kong, Chanho; Cho, Jae Sung; Lee, Jihyeon; Koh, Chin Su; Yoon, Min-Sik; Na, Young Cheol; Chang, Won Seok; Chang, Jin Woo

    2018-02-01

    OBJECTIVE The application of pharmacological therapeutics in neurological disorders is limited by the ability of these agents to penetrate the blood-brain barrier (BBB). Focused ultrasound (FUS) has recently gained attention for its potential application as a method for locally opening the BBB and thereby facilitating drug delivery into the brain parenchyma. However, this method still requires optimization to maximize its safety and efficacy for clinical use. In the present study, the authors examined several sonication parameters of FUS influencing BBB opening in small animals. METHODS Changes in BBB permeability were observed during transcranial sonication using low-intensity FUS in 20 adult male Sprague-Dawley rats. The authors examined the effects of FUS sonication with different sonication parameters, varying acoustic pressure, center frequency, burst duration, microbubble (MB) type, MB dose, pulse repetition frequency (PRF), and total exposure time. The focal region of BBB opening was identified by Evans blue dye. Additionally, H & E staining was used to identify blood vessel damage. RESULTS Acoustic pressure amplitude and burst duration were closely associated with enhancement of BBB opening efficiency, but these parameters were also highly correlated with tissue damage in the sonicated region. In contrast, MB types, MB dose, total exposure time, and PRF had an influence on BBB opening without conspicuous tissue damage after FUS sonication. CONCLUSIONS The study aimed to identify these influential conditions and provide safety and efficacy values for further studies. Future work based on the current results is anticipated to facilitate the implementation of FUS sonication for drug delivery in various CNS disease states in the near future.

  12. Safety monitoring and reactor transient interpreter

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hench, J. E.; Fukushima, T. Y.

    1983-12-20

    An apparatus which monitors a subset of control panel inputs in a nuclear reactor power plant, the subset being those indicators of plant status which are of a critical nature during an unusual event. A display (10) is provided for displaying primary information (14) as to whether the core is covered and likely to remain covered, including information as to the status of subsystems needed to cool the core and maintain core integrity. Secondary display information (18,20) is provided which can be viewed selectively for more detailed information when an abnormal condition occurs. The primary display information has messages (24)more » for prompting an operator as to which one of a number of pushbuttons (16) to press to bring up the appropriate secondary display (18,20). The apparatus utilizes a thermal-hydraulic analysis to more accurately determine key parameters (such as water level) from other measured parameters, such as power, pressure, and flow rate.« less

  13. Lighting Control System for Premises with Display Screen Equipment

    NASA Astrophysics Data System (ADS)

    Kudryashov, A. V.

    2017-11-01

    The use of Display Screen Equipment (DSE) at enterprises allows one to increase the productivity and safety of production, minimize the number of personnel and leads to the simplification of the work of specialists, but on the other side, changes usual working conditions. If the personnel works with displays, visual fatigue develops more quickly which contributes to the emergence of nervous tension, stress and possible erroneous actions. Low interest of the lighting control system developers towards the rooms with displays is dictated by special requirements for coverage by sanitary and hygienic standards (limiting excess workplace illumination). We decided to create a combined lighting system which works considering daylight illumination and artificial light sources. The brightness adjustment of the LED lamps is carried out according to the DALI protocol, adjustment of the natural illumination by means of smart glasses. The technical requirements for a lighting control system, the structural-functional scheme and the algorithm for controlling the operation of the system have been developed. The elements of control units, sensors and actuators have been selected.

  14. High-immersion three-dimensional display of the numerical computer model

    NASA Astrophysics Data System (ADS)

    Xing, Shujun; Yu, Xunbo; Zhao, Tianqi; Cai, Yuanfa; Chen, Duo; Chen, Zhidong; Sang, Xinzhu

    2013-08-01

    High-immersion three-dimensional (3D) displays making them valuable tools for many applications, such as designing and constructing desired building houses, industrial architecture design, aeronautics, scientific research, entertainment, media advertisement, military areas and so on. However, most technologies provide 3D display in the front of screens which are in parallel with the walls, and the sense of immersion is decreased. To get the right multi-view stereo ground image, cameras' photosensitive surface should be parallax to the public focus plane and the cameras' optical axes should be offset to the center of public focus plane both atvertical direction and horizontal direction. It is very common to use virtual cameras, which is an ideal pinhole camera to display 3D model in computer system. We can use virtual cameras to simulate the shooting method of multi-view ground based stereo image. Here, two virtual shooting methods for ground based high-immersion 3D display are presented. The position of virtual camera is determined by the people's eye position in the real world. When the observer stand in the circumcircle of 3D ground display, offset perspective projection virtual cameras is used. If the observer stands out the circumcircle of 3D ground display, offset perspective projection virtual cameras and the orthogonal projection virtual cameras are adopted. In this paper, we mainly discussed the parameter setting of virtual cameras. The Near Clip Plane parameter setting is the main point in the first method, while the rotation angle of virtual cameras is the main point in the second method. In order to validate the results, we use the D3D and OpenGL to render scenes of different viewpoints and generate a stereoscopic image. A realistic visualization system for 3D models is constructed and demonstrated for viewing horizontally, which provides high-immersion 3D visualization. The displayed 3D scenes are compared with the real objects in the real world.

  15. Display formats manual

    NASA Technical Reports Server (NTRS)

    Runnels, R. L.

    1973-01-01

    The standards and procedures for the generation of operational display formats to be used in the Mission Control Center (MCC) display control system are presented. The required effort, forms, and fundamentals for the design, specifications, and production of display formats are identified. The principles of display design and system constraints controlling the creation of optimum operational displays for mission control are explained. The basic two types of MCC display systems for presenting information are described.

  16. Simulator study of a pictorial display for general aviation instrument flight

    NASA Technical Reports Server (NTRS)

    Adams, J. J.

    1982-01-01

    A simulation study of a computer drawn pictorial display involved a flight task that included an en route segment, terminal area maneuvering, a final approach, a missed approach, and a hold. The pictorial display consists of the drawing of boxes which either move along the desired path or are fixed at designated way points. Two boxes may be shown at all times, one related to the active way point and the other related to the standby way point. Ground tracks and vertical profiles of the flights, time histories of the final approach, and comments were obtained from time pilots. The results demonstrate the accuracy and consistency with which the segments of the flight are executed. The pilots found that the display is easy to learn and to use; that it provides good situation awareness, and that it could improve the safety of flight. The small size of the display, the lack of numerical information on pitch, roll, and heading angles, and the lack of definition of the boundaries of the conventional glide slope and localizer areas were criticized.

  17. A candidate concept for display of forward-looking wind shear information

    NASA Technical Reports Server (NTRS)

    Hinton, David A.

    1989-01-01

    A concept is proposed which integrates forward-look wind shear information with airplane performance capabilities to predict future airplane energy state as a function of range. The information could be displayed to a crew either in terms of energy height or airspeed deviations. The anticipated benefits of the proposed display information concept are: (1) a wind shear hazard product that scales directly to the performance impact on the airplane and that has intuitive meaning to flight crews; (2) a reduction in flight crew workload by automatic processing of relevant hazard parameters; and (3) a continuous display of predicted airplane energy state if the approach is continued. Such a display may be used to improve pilot situational awareness or improve pilot confidence in wind shear alerts generated by other systems. The display is described and the algorithms necessary for implementation in a simulation system are provided.

  18. 75 FR 32664 - Safety Zone; Milwaukee Air and Water Show, Lake Michigan, Milwaukee, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-09

    .... ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on Lake Michigan... of Lake Michigan due to a large-scale air show and a fireworks display. This temporary safety zone is... air show and fireworks display. DATES: This regulation is effective from 12:01 a.m. on June 10, 2010...

  19. 77 FR 30443 - Safety Zone; Alexandria Bay Chamber of Commerce, St. Lawrence River, Alexandria Bay, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-23

    ...-AA00 Safety Zone; Alexandria Bay Chamber of Commerce, St. Lawrence River, Alexandria Bay, NY AGENCY... Commerce fireworks display. The safety zone established by this proposed rule is necessary to protect... spectators and vessels during the Alexandria Bay Chamber of Commerce fireworks display. Regulatory Analyses...

  20. Child safety seat and safety belt use among urban travelers : results of the 1984 survey.

    DOT National Transportation Integrated Search

    1985-01-01

    During nine days in June 1983 and nine in June 1984, four major metropolitan areas of Virginia were surveyed to determine whether safety restraints were being used by urban travelers. Observers stationed at selected signalized intersections displayed...

  1. Attentional models of multitask pilot performance using advanced display technology.

    PubMed

    Wickens, Christopher D; Goh, Juliana; Helleberg, John; Horrey, William J; Talleur, Donald A

    2003-01-01

    In the first part of the reported research, 12 instrument-rated pilots flew a high-fidelity simulation, in which air traffic control presentation of auditory (voice) information regarding traffic and flight parameters was compared with advanced display technology presentation of equivalent information regarding traffic (cockpit display of traffic information) and flight parameters (data link display). Redundant combinations were also examined while pilots flew the aircraft simulation, monitored for outside traffic, and read back communications messages. The data suggested a modest cost for visual presentation over auditory presentation, a cost mediated by head-down visual scanning, and no benefit for redundant presentation. The effects in Part 1 were modeled by multiple-resource and preemption models of divided attention. In the second part of the research, visual scanning in all conditions was fit by an expected value model of selective attention derived from a previous experiment. This model accounted for 94% of the variance in the scanning data and 90% of the variance in a second validation experiment. Actual or potential applications of this research include guidance on choosing the appropriate modality for presenting in-cockpit information and understanding task strategies induced by introducing new aviation technology.

  2. Flight simulator evaluation of a novel flight instrument display to minimize the risks of spatial disorientation.

    PubMed

    Braithwaite, M G; Durnford, S J; Groh, S L; Jones, H D; Higdon, A A; Estrada, A; Alvarez, E A

    1998-08-01

    Spatial disorientation (SD) in flight remains a major source of attrition. Many SD accidents would occur regardless of the instrument display in use, since the aircrew are simply not looking at the instruments. However, there are a number of accidents which might be amenable to improved instrument displays. In an attempt to improve maintenance and reattainment of correct orientation with a reduced cognitive workload, a novel instrument display has been developed. This paper describes an assessment of the display in a UH-60 helicopter flight simulator. This study tested the hypothesis that during instrument flight and recovery from unusual attitudes, the novel display permits a more accurate maintenance and reestablishment of flight parameters than the standard flight instruments. There were 16 male aviators who flew a simulated instrument flight profile and recovery from unusual attitudes using both the standard flight instruments and the novel display. The two display formats were tested both with and without a secondary task. When compared with the standard instruments, both control of flight parameters and recovery from unusual attitudes were significantly improved when using the novel display. Analysis of the secondary task scores showed that cognitive workload was reduced when using the novel display compared with the standard instruments. Results from all aspects of the assessment indicated benefits of the new display. Future testing should be carried out during real flight, and the display should be further developed to be used in a head-up or helmet-mounted device.

  3. Human factors considerations in the design and evaluation of flight deck displays and controls

    DOT National Transportation Integrated Search

    2013-11-01

    The objective of this effort is to have a single source document for human factors regulatory and guidance material for flight deck displays and controls, in the interest of improving aviation safety. This document identifies guidance on human factor...

  4. Advanced Interactive Display Formats for Terminal Area Traffic Control

    NASA Technical Reports Server (NTRS)

    Grunwald, Arthur J.; Shaviv, G. E.

    1999-01-01

    This research project deals with an on-line dynamic method for automated viewing parameter management in perspective displays. Perspective images are optimized such that a human observer will perceive relevant spatial geometrical features with minimal errors. In order to compute the errors at which observers reconstruct spatial features from perspective images, a visual spatial-perception model was formulated. The model was employed as the basis of an optimization scheme aimed at seeking the optimal projection parameter setting. These ideas are implemented in the context of an air traffic control (ATC) application. A concept, referred to as an active display system, was developed. This system uses heuristic rules to identify relevant geometrical features of the three-dimensional air traffic situation. Agile, on-line optimization was achieved by a specially developed and custom-tailored genetic algorithm (GA), which was to deal with the multi-modal characteristics of the objective function and exploit its time-evolving nature.

  5. Validation of Essential Acoustic Parameters for Highly Urgent In-Vehicle Collision Warnings.

    PubMed

    Lewis, Bridget A; Eisert, Jesse L; Baldwin, Carryl L

    2018-03-01

    Objective The aim of this study was to validate the importance of key acoustic criteria for use as in-vehicle forward collision warning (FCW) systems. Background Despite recent advances in vehicle safety, automobile crashes remain one of the leading causes of death. As automation allows for more control of noncritical functions by the vehicle, the potential for disengagement and distraction from the driving task also increases. It is, therefore, as important as ever that in-vehicle safety-critical interfaces are intuitive and unambiguous, promoting effective collision avoidance responses upon first exposure even under divided-attention conditions. Method The current study used a driving simulator to assess the effectiveness of two warnings, one that met all essential acoustic parameters, one that met only some essential parameters, and a no-warning control in the context of a lead vehicle-following task in conjunction with a cognitive distractor task and collision event. Results Participants receiving an FCW comprising five essential acoustic components had improved collision avoidance responses relative to a no-warning condition and an FCW missing essential elements on their first exposure. Responses to a consistently good warning (GMU Prime) improved with subsequent exposures, whereas continued exposure to the less optimal FCW (GMU Sub-Prime) resulted in poorer performance even relative to receiving no warning at all. Conclusions This study provides support for previous warning design studies and for the validity of five key acoustic parameters essential for the design of effective in-vehicle FCWs. Application Results from this study have implications for the design of auditory FCWs and in-vehicle display design.

  6. Parameters affecting of Akkuyu's safety assessment for severe core damages

    NASA Astrophysics Data System (ADS)

    Kavun, Yusuf; Karasulu, Muzaffer

    2015-07-01

    We have looked at all past core meltdowns (Three Mile Island, Chernobyl and Fukushima incidents) and postulated the fourth one might be taking place in the future most probably in a newly built reactors anywhere of the earth in any type of NPP. The probability of this observation is high considering the nature of the machine and human interaction. Operation experience is a very significant parameter as well as the safety culture of the host nation. The concerns is not just a lack of experience with industry with the new comers, but also the infrastructure and established institutions who will be dealing with the Emergencies. Lack of trained and educated Emergency Response Organizations (ERO) is a major concern. The culture on simple fire drills even makes the difference when a severe condition occurs in the industry. The study assumes the fourth event will be taking place at the Akkuyu NGS and works backwards as required by the "what went wrong " scenarios and comes up with interesting results. The differences studied in depth to determine the impact to the severe accidents. The all four design have now core catchers. We have looked at the operator errors'like in TMI); Operator errors combined with design deficiencies(like in Chernobyl) and natural disasters( like in Fukushima) and found operator errors to be more probable event on the Akkuyu's postulated next incident. With respect to experiences of the operators we do not have any data except for long and successful operating history of the Soviet design reactors up until the Chernobyl incident. Since the Akkuyu will be built, own and operated by the Russians we have found no alarming concerns at the moment. At the moment, there is no body be able to operate those units in Turkey. Turkey is planning to build the required manpower during the transition period. The resolution of the observed parameters lies to work and educate, train of the host nation and exercise together.

  7. European display scene

    NASA Astrophysics Data System (ADS)

    Bartlett, Christopher T.

    2000-08-01

    The manufacture of Flat Panel Displays (FPDs) is dominated by Far Eastern sources, particularly in Active Matrix Liquid Crystal Displays (AMLCD) and Plasma. The United States has a very powerful capability in micro-displays. It is not well known that Europe has a very active research capability which has lead to many innovations in display technology. In addition there is a capability in display manufacturing of organic technologies as well as the licensed build of Japanese or Korean designs. Finally, Europe has a display systems capability in military products which is world class.

  8. Effect of display location on control-display stereotype strength for translational and rotational controls with linear displays.

    PubMed

    Chan, Alan H S; Hoffmann, Errol R

    2015-01-01

    Experiments were designed to investigate the effects of control type and display location, relative to the operator, on the strength of control/display stereotypes. The Worringham and Beringer Visual Field principle and an extension of this principle for rotary controls (Hoffmann E.R., and Chan A.H.S. 2013). "The Worringham and Beringer 'Visual Field' Principle for Rotary Controls. Ergonomics." 56 (10): 1620-1624) indicated that, for a number of different control types (rotary and lever) on different planes, there should be no significant effect of the display location relative to the seated operator. Past data were surveyed and stereotype strengths listed. Experiments filled gaps where data are not available. Six different control types and seven display locations were used, as in the Frame of Reference Transformation Tool (FORT) model of Wickens et al. (Wickens, C.D., Keller, J.W., and Small, R.L. (2010). "Left. No, Right! Development of the Frame of Reference Transformation Tool (FORT)." Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting September 2010, 54: 1022-1026). Control/display arrangements with high stereotype strengths were evaluated yielding data for designers of complex control/display arrangements where the control and display are in different planes and for where the operator is moving. It was found possible to predict display/control arrangements with high stereotype strength, based on past data. Practitioner Summary: Controls and displays in complex arrangements need to have high compatibility. These experiments provide arrangements for six different controls (rotary and translational) and seven different display locations relative to the operator.

  9. 76 FR 70647 - Safety Zone; Fireworks Display, Potomac River, National Harbor Access Channel, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ... Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone upon specified waters of the Potomac River. This action is necessary to provide for the safety of life on... maritime public in a portion of the Potomac River. DATES: This rule is effective from 6 p.m. on November 19...

  10. Comparison of Dam Breach Parameter Estimators

    DTIC Science & Technology

    2008-01-01

    of the methods, when used in the HEC - RAS simulation model , produced comparable results. The methods tested suggest use of ...characteristics of a dam breach, use of those parameters within the unsteady flow routing model HEC - RAS , and the computation and display of the resulting...implementation of these breach parameters in

  11. 75 FR 63086 - Great Mississippi Balloon Race and Fireworks Safety Zone; Lower Mississippi River, Mile Marker...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-14

    ... flying hot air balloons transiting across the Lower Mississippi River. Entry into this zone is prohibited... mariners from the safety hazards associated with a fireworks display and low flying hot air balloons... mariners from the safety hazards associated with a fireworks display and low flying hot air balloons...

  12. Design and Development of Functionally Effective Human-Machine Interfaces for Firing Room Displays

    NASA Technical Reports Server (NTRS)

    Cho, Henry

    2013-01-01

    This project involves creating software for support equipment used on the Space Launch System (SLS). The goal is to create applications and displays that will be used to remotely operate equipment from the firing room and will continue to support the SLS launch vehicle to the extent of its program. These displays include design practices that help to convey information effectively, such as minimizing distractions at normal operating state and displaying intentional distractions during a warning or alarm state. The general practice for creating an operator display is to reduce the detail of unimportant aspects of the display and promote focus on data and dynamic information. These practices include using minimalist design, using muted tones for background colors, using a standard font at a readable text size, displaying alarms visible for immediate attention, grouping data logically, and displaying data appropriately varying on the type of data. Users of these displays are more likely to stay focused on operating for longer periods by using design practices that reduce eye strain and fatigue. Effective operator displays will improve safety by reducing human errors during operation, which will help prevent catastrophic accidents. This report entails the details of my work on developing remote displays for the Hypergolic fuel servicing system. Before developing a prototype display, the design and requirements of the system are outlined and compiled into a document. Then each subsystem has schematic representations drawn that meet the specifications detailed in the document. The schematics are then used as the outline to create display representations of each subsystem. Each display is first tested individually. Then the displays are integrated with a prototype of the master system, and they are tested in a simulated environment then retested in the real environment. Extensive testing is important to ensure the displays function reliably as intended.

  13. Design and Development of Functionally Effective Human-Machine Interfaces for Firing Room Displays

    NASA Technical Reports Server (NTRS)

    Cho, Henry

    2013-01-01

    This project involves creating software for support equipment used on the Space l aunch System (SLS). The goal is to create applications and displays that will be used to remotely operate equipment from the firing room and will continue to support the SLS launch vehicle to the extent of its program. These displays include design practices that help to convey information effectively, such as minimizing distractions at normal operating state and displaying intentional distractions during a warning or alarm state. The general practice for creating an operator display is to reduce the detail of unimportant aspects of the display and promote focus on data and dynamic information. These practices include using minimalist design, using muted tones for background colors, using a standard font at a readable text size, displaying alarms visible for Immediate attention, grouping data logically, and displaying data appropriately varying on the type of data. Users of these displays are more likely to stay focused on operating for longer periods by using design practices that reduce eye strain and fatigue. Effective operator displays will improve safety by reducing human errors during operation, which will help prevent catastrophic accidents. This report entails the details of my work on developing remote displays for the Hypergolics ground system. Before developing a prototype display, the design and requirements of the system are outlined and compiled into a document. Then each subsystem has schematic representations drawn tha.t meet the specifications detailed in the document. The schematics are then used as the outline to create display representations of each subsystem. Each display is first tested individually. Then the displays are integrated with a prototype of the master system, and they are tested in a simulated environment then retested in the real environment. Extensive testing is important to ensure the displays function reliably as intended.

  14. Child safety seat and safety belt use among urban travelers : results of the 1983-1986 surveys.

    DOT National Transportation Integrated Search

    1986-01-01

    The four major metropolitan areas of Virginia were surveyed to determine the extent to which safety restraints were being used by urban travelers. Observers were stationed at selected signalized intersections and displayed to stopped motorists a clip...

  15. 75 FR 53574 - Safety Zone; Fireworks Displays, Potomac River, National Harbor, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-01

    ... would like to know that they reached the Facility, please enclose a stamped, self-addressed postcard or..., dangerous projectiles, and falling hot embers or other debris. This rule is needed to ensure safety on the...

  16. Monocular display unit for 3D display with correct depth perception

    NASA Astrophysics Data System (ADS)

    Sakamoto, Kunio; Hosomi, Takashi

    2009-11-01

    A study of virtual-reality system has been popular and its technology has been applied to medical engineering, educational engineering, a CAD/CAM system and so on. The 3D imaging display system has two types in the presentation method; one is a 3-D display system using a special glasses and the other is the monitor system requiring no special glasses. A liquid crystal display (LCD) recently comes into common use. It is possible for this display unit to provide the same size of displaying area as the image screen on the panel. A display system requiring no special glasses is useful for a 3D TV monitor, but this system has demerit such that the size of a monitor restricts the visual field for displaying images. Thus the conventional display can show only one screen, but it is impossible to enlarge the size of a screen, for example twice. To enlarge the display area, the authors have developed an enlarging method of display area using a mirror. Our extension method enables the observers to show the virtual image plane and to enlarge a screen area twice. In the developed display unit, we made use of an image separating technique using polarized glasses, a parallax barrier or a lenticular lens screen for 3D imaging. The mirror can generate the virtual image plane and it enlarges a screen area twice. Meanwhile the 3D display system using special glasses can also display virtual images over a wide area. In this paper, we present a monocular 3D vision system with accommodation mechanism, which is useful function for perceiving depth.

  17. The conception of fashion products for children: reflections on safety parameters.

    PubMed

    Prete, Lígia Gomes Pereira; Emidio, Lucimar de Fátima Bilmaia; Martins, Suzana Barreto

    2012-01-01

    The purpose of this study is to reflect on safety requirements for children's clothing, based on the standardization proposed by the ABNT (Technical Standardization Brazilian Association). Bibliographic research and case studies were considered on writing this work. We also discuss the importance of adding other safety requirements to the current standardization, as well as the increasing of the actual age range specified by the ABNT, following the children's clothing safety standardizations in Portugal and the United States, also stated here.

  18. Task-oriented display design - Concept and example

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.

    1989-01-01

    The general topic was in the area of display design alternatives for improved man-machine performance. The intent was to define and assess a display design concept oriented toward providing this task-oriented information. The major focus of this concept deals with the processing of data into parameters that are more relevant to the task of the human operator. Closely coupled to this concept of relevant information is the form or manner in which this information is actually presented. Conventional forms of presentation are normally a direct representation of the underlying data. By providing information in a form that is more easily assimilated and understood, a reduction in human error and cognitive workload may be obtained. A description of this proposed concept with a design example is provided. The application for the example was an engine display for a generic, twin-engine civil transport aircraft. The product of this concept was evaluated against a functionally similar, traditional display. The results of this evaluation showed that a task-oriented approach to design is a viable concept with regard to reducing user error and cognitive workload. The goal of this design process, providing task-oriented information to the user, both in content and form, appears to be a feasible mechanism for increasing the overall performance of a man-machine system.

  19. Task-oriented display design: Concept and example

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.

    1989-01-01

    The general topic was in the area of display design alternatives for improved man-machine performance. The intent was to define and assess a display design concept oriented toward providing this task-oriented information. The major focus of this concept deals with the processing of data into parameters that are more relevant to the task of the human operator. Closely coupled to this concept of relevant information is the form or manner in which this information is actually presented. Conventional forms of presentation are normally a direct representation of the underlying data. By providing information in a form that is more easily assimilated and understood, a reduction in human error and cognitive workload may be obtained. A description of this proposed concept with a design example is provided. The application for the example was an engine display for a generic, twin-engine civil transport aircraft. The product of this concept was evaluated against a functionally similar, traditional display. The results of this evaluation showed that a task-oriented approach to design is a viable concept with regard to reducing user error and cognitive workload. The goal of this design process, providing task-oriented information to the user, both in content and form, appears to be a feasible mechanism for increasing the overall performance of a man-machine system.

  20. 78 FR 42016 - Safety Zone; Discovery World Fireworks, Milwaukee Harbor, Milwaukee, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-15

    ...-AA00 Safety Zone; Discovery World Fireworks, Milwaukee Harbor, Milwaukee, WI AGENCY: Coast Guard, DHS... Milwaukee Harbor due to 4 fireworks displays at Discovery World Pier. This safety zone is necessary to... entitled, ``Safety Zone; Discovery World Fireworks, Milwaukee Harbor, Milwaukee, Wisconsin'' in the Federal...

  1. 75 FR 33694 - Safety Zone; Delta Independence Day Foundation Celebration, Mandeville Island, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-15

    ... safety of participants and spectators from the dangers associated with the pyrotechnics. Unauthorized... completed. Because of the immediate dangers posed by the pyrotechnics used in this fireworks display, the... pyrotechnics, during the transit of the barge to the display location, and during the fireworks display. This...

  2. Distortion of depth perception in virtual environments using stereoscopic displays: quantitative assessment and corrective measures

    NASA Astrophysics Data System (ADS)

    Kleiber, Michael; Winkelholz, Carsten

    2008-02-01

    The aim of the presented research was to quantify the distortion of depth perception when using stereoscopic displays. The visualization parameters of the used virtual reality system such as perspective, haploscopic separation and width of stereoscopic separation were varied. The experiment was designed to measure distortion in depth perception according to allocentric frames of reference. The results of the experiments indicate that some of the parameters have an antithetic effect which allows to compensate the distortion of depth perception for a range of depths. In contrast to earlier research which reported underestimation of depth perception we found that depth was overestimated when using true projection parameters according to the position of the eyes of the user and display geometry.

  3. Image Display And Manipulation System (IDAMS), user's guide

    NASA Technical Reports Server (NTRS)

    Cecil, R. W.

    1972-01-01

    A combination operator's guide and user's handbook for the Image Display and Manipulation System (IDAMS) is reported. Information is presented to define how to operate the computer equipment, how to structure a run deck, and how to select parameters necessary for executing a sequence of IDAMS task routines. If more detailed information is needed on any IDAMS program, see the IDAMS program documentation.

  4. Helmet-Mounted Display Of Clouds Of Harmful Gases

    NASA Technical Reports Server (NTRS)

    Diner, Daniel B.; Barengoltz, Jack B.; Schober, Wayne R.

    1995-01-01

    Proposed helmet-mounted opto-electronic instrument provides real-time stereoscopic views of clouds of otherwise invisible toxic, explosive, and/or corrosive gas. Display semitransparent: images of clouds superimposed on scene ordinarily visible to wearer. Images give indications on sizes and concentrations of gas clouds and their locations in relation to other objects in scene. Instruments serve as safety devices for astronauts, emergency response crews, fire fighters, people cleaning up chemical spills, or anyone working near invisible hazardous gases. Similar instruments used as sensors in automated emergency response systems that activate safety equipment and emergency procedures. Both helmet-mounted and automated-sensor versions used at industrial sites, chemical plants, or anywhere dangerous and invisible or difficult-to-see gases present. In addition to helmet-mounted and automated-sensor versions, there could be hand-held version. In some industrial applications, desirable to mount instruments and use them similarly to parking-lot surveillance cameras.

  5. Display technologies; Proceedings of the Meeting, National Chiao Tung Univ., Hsinchu, Taiwan, Dec. 17, 18, 1992

    NASA Astrophysics Data System (ADS)

    Chen, Shu-Hsia; Wu, Shin-Tson

    1992-10-01

    A broad range of interdisciplinary subjects related to display technologies is addressed, with emphasis on high-definition displays, CRTs, projection displays, materials for display application, flat-panel displays, display modeling, and polymer-dispersed liquid crystals. Particular attention is given to a CRT approach to high-definition television display, a superhigh-resolution electron gun for color display CRT, a review of active-matrix liquid-crystal displays, color design for LCD parameters in projection and direct-view applications, annealing effects on ZnS:TbF3 electroluminescent devices prepared by RF sputtering, polycrystalline silicon thin film transistors with low-temperature gate dielectrics, refractive index dispersions of liquid crystals, a new rapid-response polymer-dispersed liquid-crystal material, and improved liquid crystals for active-matrix displays using high-tilt-orientation layers. (No individual items are abstracted in this volume)

  6. Stennis Space Center observes 2009 Safety and Health Day

    NASA Technical Reports Server (NTRS)

    2009-01-01

    Sue Smith, a medical clinic employee at NASA's John C. Stennis Space Center, takes the temperature of colleague Karen Badon during 2009 Safety and Health Day activities Oct. 22. Safety Day activities included speakers, informational sessions and a number of displays on safety and health issues. Astronaut Dominic Gorie also visited the south Mississippi rocket engine testing facility during the day to address employees and present several Silver Snoopy awards for outstanding contributions to flight safety and mission success. The activities were part of an ongoing safety and health emphasis at Stennis.

  7. Super Safety and Health Day at KSC

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Center Director Roy Bridges talks to workers outside the Hazardous Maintenance Facility during Super Safety and Health Day at KSC. Safety Day is a full day of NASA-sponsored, KSC and 45th Space Wing events involving a number of health and safety related activities: Displays, vendors, technical paper sessions, panel discussions, a keynote speaker, etc. The entire Center and Wing stand down to participate in the planned events. Safety Day is held annually to proactively increase awareness in safety and health among the government and contractor workforce population. The first guiding principle at KSC is '''Safety and Health First.''' KSC's number one goal is to '''Assure sound, safe and efficient practices and processes are in place for privatized/commercialized launch site processing.'''

  8. Super Safety and Health Day at KSC

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Employees gather around a demonstration by Florida Power and Light during Super Safety and Health Day at KSC. Safety Day is a full day of NASA-sponsored, KSC and 45th Space Wing events involving a number of health- and safety-related activities: Displays, vendors, technical paper sessions, panel discussions, a keynote speaker, etc. The entire Center and Wing stand down to participate in the planned events. Safety Day is held annually to proactively increase awareness in safety and health among the government and contractor workforce population. The first guiding principle at KSC is '''Safety and Health First.''' KSC's number one goal is to '''Assure sound, safe and efficient practices and processes are in place for privatized/commercialized launch site processing.'''

  9. Super Safety and Health Day at KSC

    NASA Technical Reports Server (NTRS)

    2000-01-01

    In an exhibit tent during Super Safety and Health Day at KSC, employees sample iced tea from a vendor. Safety Day is a full day of NASA-sponsored, KSC and 45th Space Wing events involving a number of health- and safety-related activities: Displays, vendors, technical paper sessions, panel discussions, a keynote speaker, etc. The entire Center and Wing stand down to participate in the planned events. Safety Day is held annually to proactively increase awareness in safety and health among the government and contractor workforce population. The first guiding principle at KSC is '''Safety and Health First.''' KSC's number one goal is to '''Assure sound, safe and efficient practices and processes are in place for privatized/commercialized launch site processing.'''

  10. Display Techniques for Advanced Crew Stations (DTACS). Phase 1. Display Techniques Study.

    DTIC Science & Technology

    1984-03-01

    26 3.1.3 Off Screen Displays .. ................... 27 3.1.4 Flat Panel Displays. .. ................. 27 3.2 FORMAT REQUIREMENTS...Head-Up Display ....... .................... ... 96 4.5.2 Display Panel .... ................. 98 4.5.3 RGB Calligraphic Display ................ 99...117 3.4 VOICE WARNING/RESPONSE TECHNOLOGY .............. . i.117 5.5 TOUCH PANEL TECHNOLOGY ..... ................ ... 118 5.6

  11. Comanche Helmet-Mounted Display Symbology Simulation

    NASA Technical Reports Server (NTRS)

    Turpin, Terry S.; Dowell, Susan R.; Szoboszlay, Zoltan

    2006-01-01

    The Aeroflightdynamics Directorate (AMRDEC) conducted a simulation to examine the performance of the Comanche Contact Analog world-referenced symbology displayed on the Comanche HIDSS when compared with a compressed symbology design similar to that specified by the former MIL-STD 1295. Six experimental test pilots flew one modified ADS-33 maneuver (hover turn, bob-up), an unusual attitude recovery, and two terrain flight tactical tasks in the NASA Vertical Motion Simulator (VMS). Analysis of the pilot objective performance data and subjective data showed the following results. Objective test results showed that 1295 symbology yielded more rapid maneuvering in the hover turn bob-up than Contact Analog symbology. The average margin of difference in the time to complete the maneuver was approximately two seconds, which was statistically significant. There were no significant differences measured between symbology sets with respect to altitude or position performance measures for all other maneuvers. The NOE target ID task data showed improved accuracy in determining heading to target when using Contact Analog over MIL-STD-1295. Subjective test results, including handling qualities ratings (HQRs) and NASA-TLX workload ratings, showed small but consistent advantages of 1295 symbology over Contact Analog for most parameters. For the bob-up maneuver, 1295 symbology handling qualities were rated Desired for lateral position error and time to complete whereas Contact Analog was rated adequate. The average HQRs for all other maneuvers were rated the same for both symbology sets. Pilot comments and the results of an online questionnaire more strongly favored 1295 over Contact Analog. Repeated comments from all six pilots led to a focus on design issues with six Contact Analog symbols. Those symbols were the heading tape, horizon line, radar altitude six-second predictor, the position of the torque symbol, the absence of a hover position cue, and the widespread positioning of

  12. Safety analysis of proposed data-driven physiologic alarm parameters for hospitalized children.

    PubMed

    Goel, Veena V; Poole, Sarah F; Longhurst, Christopher A; Platchek, Terry S; Pageler, Natalie M; Sharek, Paul J; Palma, Jonathan P

    2016-12-01

    Modification of alarm limits is one approach to mitigating alarm fatigue. We aimed to create and validate heart rate (HR) and respiratory rate (RR) percentiles for hospitalized children, and analyze the safety of replacing current vital sign reference ranges with proposed data-driven, age-stratified 5th and 95th percentile values. In this retrospective cross-sectional study, nurse-charted HR and RR data from a training set of 7202 hospitalized children were used to develop percentile tables. We compared 5th and 95th percentile values with currently accepted reference ranges in a validation set of 2287 patients. We analyzed 148 rapid response team (RRT) and cardiorespiratory arrest (CRA) events over a 12-month period, using HR and RR values in the 12 hours prior to the event, to determine the proportion of patients with out-of-range vitals based upon reference versus data-driven limits. There were 24,045 (55.6%) fewer out-of-range measurements using data-driven vital sign limits. Overall, 144/148 RRT and CRA patients had out-of-range HR or RR values preceding the event using current limits, and 138/148 were abnormal using data-driven limits. Chart review of RRT and CRA patients with abnormal HR and RR per current limits considered normal by data-driven limits revealed that clinical status change was identified by other vital sign abnormalities or clinical context. A large proportion of vital signs in hospitalized children are outside presently used norms. Safety evaluation of data-driven limits suggests they are as safe as those currently used. Implementation of these parameters in physiologic monitors may mitigate alarm fatigue. Journal of Hospital Medicine 2015;11:817-823. © 2015 Society of Hospital Medicine. © 2016 Society of Hospital Medicine.

  13. Examination of an Electronic Patient Record Display Method to Protect Patient Information Privacy.

    PubMed

    Niimi, Yukari; Ota, Katsumasa

    2017-02-01

    Electronic patient records facilitate the provision of safe, high-quality medical care. However, because personnel can view almost all stored information, this study designed a display method using a mosaic blur (pixelation) to temporarily conceal information patients do not want shared. This study developed an electronic patient records display method for patient information that balanced the patient's desire for personal information protection against the need for information sharing among medical personnel. First, medical personnel were interviewed about the degree of information required for both individual duties and team-based care. Subsequently, they tested a mock display method that partially concealed information using a mosaic blur, and they were interviewed about the effectiveness of the display method that ensures patient privacy. Participants better understood patients' demand for confidentiality, suggesting increased awareness of patients' privacy protection. However, participants also indicated that temporary concealment of certain information was problematic. Other issues included the inconvenience of removing the mosaic blur to obtain required information and risk of insufficient information for medical care. Despite several issues with using a display method that temporarily conceals information according to patient privacy needs, medical personnel could accept this display method if information essential to medical safety remains accessible.

  14. Effects of ensemble and summary displays on interpretations of geospatial uncertainty data.

    PubMed

    Padilla, Lace M; Ruginski, Ian T; Creem-Regehr, Sarah H

    2017-01-01

    Ensemble and summary displays are two widely used methods to represent visual-spatial uncertainty; however, there is disagreement about which is the most effective technique to communicate uncertainty to the general public. Visualization scientists create ensemble displays by plotting multiple data points on the same Cartesian coordinate plane. Despite their use in scientific practice, it is more common in public presentations to use visualizations of summary displays, which scientists create by plotting statistical parameters of the ensemble members. While prior work has demonstrated that viewers make different decisions when viewing summary and ensemble displays, it is unclear what components of the displays lead to diverging judgments. This study aims to compare the salience of visual features - or visual elements that attract bottom-up attention - as one possible source of diverging judgments made with ensemble and summary displays in the context of hurricane track forecasts. We report that salient visual features of both ensemble and summary displays influence participant judgment. Specifically, we find that salient features of summary displays of geospatial uncertainty can be misunderstood as displaying size information. Further, salient features of ensemble displays evoke judgments that are indicative of accurate interpretations of the underlying probability distribution of the ensemble data. However, when participants use ensemble displays to make point-based judgments, they may overweight individual ensemble members in their decision-making process. We propose that ensemble displays are a promising alternative to summary displays in a geospatial context but that decisions about visualization methods should be informed by the viewer's task.

  15. VRLane: a desktop virtual safety management program for underground coal mine

    NASA Astrophysics Data System (ADS)

    Li, Mei; Chen, Jingzhu; Xiong, Wei; Zhang, Pengpeng; Wu, Daozheng

    2008-10-01

    VR technologies, which generate immersive, interactive, and three-dimensional (3D) environments, are seldom applied to coal mine safety work management. In this paper, a new method that combined the VR technologies with underground mine safety management system was explored. A desktop virtual safety management program for underground coal mine, called VRLane, was developed. The paper mainly concerned about the current research advance in VR, system design, key techniques and system application. Two important techniques were introduced in the paper. Firstly, an algorithm was designed and implemented, with which the 3D laneway models and equipment models can be built on the basis of the latest mine 2D drawings automatically, whereas common VR programs established 3D environment by using 3DS Max or the other 3D modeling software packages with which laneway models were built manually and laboriously. Secondly, VRLane realized system integration with underground industrial automation. VRLane not only described a realistic 3D laneway environment, but also described the status of the coal mining, with functions of displaying the run states and related parameters of equipment, per-alarming the abnormal mining events, and animating mine cars, mine workers, or long-wall shearers. The system, with advantages of cheap, dynamic, easy to maintenance, provided a useful tool for safety production management in coal mine.

  16. Accounting for human neurocognitive function in the design and evaluation of 360 degree situational awareness display systems

    NASA Astrophysics Data System (ADS)

    Metcalfe, Jason S.; Mikulski, Thomas; Dittman, Scott

    2011-06-01

    The current state and trajectory of development for display technologies supporting information acquisition, analysis and dissemination lends a broad informational infrastructure to operators of complex systems. The amount of information available threatens to outstrip the perceptual-cognitive capacities of operators, thus limiting their ability to effectively interact with targeted technologies. Therefore, a critical step in designing complex display systems is to find an appropriate match between capabilities, operational needs, and human ability to utilize complex information. The present work examines a set of evaluation parameters that were developed to facilitate the design of systems to support a specific military need; that is, the capacity to support the achievement and maintenance of real-time 360° situational awareness (SA) across a range of complex military environments. The focal point of this evaluation is on the reciprocity native to advanced engineering and human factors practices, with a specific emphasis on aligning the operator-systemenvironment fit. That is, the objective is to assess parameters for evaluation of 360° SA display systems that are suitable for military operations in tactical platforms across a broad range of current and potential operational environments. The approach is centered on five "families" of parameters, including vehicle sensors, data transmission, in-vehicle displays, intelligent automation, and neuroergonomic considerations. Parameters are examined under the assumption that displays designed to conform to natural neurocognitive processing will enhance and stabilize Soldier-system performance and, ultimately, unleash the human's potential to actively achieve and maintain the awareness necessary to enhance lethality and survivability within modern and future operational contexts.

  17. 78 FR 43064 - Safety Zone; Maritime Heritage Festival Fireworks, St. Helens, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-19

    ...-AA00 Safety Zone; Maritime Heritage Festival Fireworks, St. Helens, OR AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone in St. Helens, OR. This safety... associated with fireworks displays. As part of the Maritime Heritage Festival Fireworks in St. Helens, OR...

  18. Thin optical display panel

    DOEpatents

    Veligdan, James Thomas

    1997-01-01

    An optical display includes a plurality of optical waveguides each including a cladding bound core for guiding internal display light between first and second opposite ends by total internal reflection. The waveguides are stacked together to define a collective display thickness. Each of the cores includes a heterogeneous portion defining a light scattering site disposed longitudinally between the first and second ends. Adjacent ones of the sites are longitudinally offset from each other for forming a longitudinal internal image display over the display thickness upon scattering of internal display light thereagainst for generating a display image. In a preferred embodiment, the waveguides and scattering sites are transparent for transmitting therethrough an external image in superposition with the display image formed by scattering the internal light off the scattering sites for defining a heads up display.

  19. Polyplanar optical display

    NASA Astrophysics Data System (ADS)

    Veligdan, James T.; Beiser, Leo; Biscardi, Cyrus; Brewster, Calvin; DeSanto, Leonard

    1997-07-01

    The polyplanar optical display (POD) is a unique display screen which can be use with any projection source. This display screen is 2 inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. The new display uses a 100 milliwatt green solid state laser as its optical source. In order to produce real- time video, the laser light is being modulated by a digital light processing (DLP) chip manufactured by Texas Instruments, Inc. A variable astigmatic focusing system is used to produce a stigmatic image on the viewing face of the POD. In addition to the optical design, we discuss the electronic interfacing to the DLP chip, the opto-mechanical design and viewing angle characteristics.

  20. Evaluation of Head-Worn Display Concepts for Commercial Aircraft Taxi Operations

    NASA Technical Reports Server (NTRS)

    Bailey, Randall E.; Arthur, Jarvis J., III; Prinzel, Lawrence J., III; Kramer, Lynda J.

    2007-01-01

    Previous research has demonstrated that a Head-Up Display (HUD) can be used to enable more capacity and safer aircraft surface operations. This previous research also noted that the HUD exhibited two major limitations which hindered the full potential of the display concept: 1) the monochrome HUD format; and, 2) a limited, fixed field of regard. Full-color Head Worn Displays (HWDs) with very small sizes and weights are emerging to the extent that this technology may be practical for commercial and business aircraft operations. By coupling the HWD with a head tracker, full-color, out-the-window display concepts with an unlimited field-of-regard may be realized to improve efficiency and safety in surface operations. A ground simulation experiment was conducted at NASA Langley to evaluate the efficacy of head-worn display applications which may directly address the limitations of the HUD while retaining all of its advantages in surface operations. The simulation experiment used airline crews to evaluate various displays (HUD, HWD) and display concepts in an operationally realistic environment by using a Chicago, O Hare airport database. The results pertaining to the implications of HWDs for commercial business and transport aviation applications are presented herein. Overall HWD system latency was measured and found to be acceptable, but not necessarily optimal. A few occurrences of simulator sickness were noted while wearing the HWD, but overall there appears to be commercial pilot acceptability and usability to the concept. Many issues were identified which need to be addressed in future research including continued reduction in user encumbrance due to the HWD, and improvement in image alignment, accuracy, and boresighting.

  1. 77 FR 39633 - Special Local Regulation and Safety Zones; Marine Events in Captain of the Port Sector Long...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-05

    ... displays and swim events. This action is necessary to provide for the safety of life on navigable waters... order to provide for the safety of life on navigable waterways during regattas, fireworks displays and... the following events: Davis Park Fireworks, Charles W. Morgan Anniversary Fireworks and Waves of Hope...

  2. Remote Software Application and Display Development

    NASA Technical Reports Server (NTRS)

    Sanders, Brandon T.

    2014-01-01

    The era of the shuttle program has come to an end, but only to give rise to newer and more exciting projects. Now is the time of the Orion spacecraft, a work of art designed to exceed all previous endeavors of man. NASA is exiting the time of exploration and is entering a new period, a period of pioneering. With this new mission, many of NASAs organizations must undergo a great deal of change and development to support the Orion missions. The Spaceport Command and Control System (SCCS) is the new system that will provide NASA the ability to launch rockets into orbit and thus control Orion and other spacecraft as the goal of populating Mars becomes ever increasingly tangible. Since the previous control system, Launch Processing System (LPS), was primarily designed to launch the shuttles, SCCS was needed as Kennedy Space Center (KSC) reorganized to a multiuser spaceport for commercial flights, providing a more versatile control over rockets. Within SCCS, is the Launch Control System (LCS), which is the remote software behind the command and monitoring of flight and ground system hardware. This internship at KSC has involved two main components in LCS, including Remote Software Application and Display development. The display environment provides a graphical user interface for an operator to view and see if any cautions are raised, while the remote applications are the backbone that communicate with hardware, and then relay the data back to the displays. These elements go hand in hand as they provide monitoring and control over hardware and software alike from the safety of the Launch Control Center. The remote software applications are written in Application Control Language (ACL), which must undergo unit testing to ensure data integrity. This paper describes both the implementation and writing of unit tests in ACL code for remote software applications, as well as the building of remote displays to be used in the Launch Control Center (LCC).

  3. Associations between social media displays and event-specific alcohol consumption by college students

    PubMed Central

    Moreno, Megan A; Kacvinsky, Lauren; Pumper, Megan; Wachowski, Leah; Whitehill, Jennifer M.

    2013-01-01

    Background Mifflin Street Block Party is a yearly Wisconsin event known for high levels of alcohol consumption and previous negative outcomes. This study investigated displayed Mifflin references on Facebook and their association with alcohol consumption at Mifflin. Methods Participants included first-year college students who were enrolled in a longitudinal study involving Facebook profile assessments and interviews. We identified a subset of participants who were interviewed within 28 days following Mifflin. Participants were categorized as “Mifflin Displayers” or “Non-Displayers” based on Facebook profile content. Interviews included the TimeLine FollowBack to assess alcohol use in the past 28 days. Analysis included logistic and linear regression. Results Among the 66 participants included in this study, 45 (68.2%) were female and 38 (50%) were Mifflin Displayers on Facebook. Among the Mifflin Displayer participants, 18 (27.2%) displayed prior to Mifflin, 11 displayed the day of Mifflin (16.7%) and 19 (28.8%) displayed after. Some participants displayed in more than one time frame. A total of 40 (60.6%) reported alcohol use on the day of the Mifflin Street Block party. The mean number of drinks reported on the day of Mifflin was 8.8 (SD=6.1), with a range of 1 to 35. Displayed references to Mifflin on Facebook were positively associated with reporting alcohol use at Mifflin (OR=20.9, 95% CI 5.6–78.8). Discussion Displaying Facebook references to Mifflin was associated with alcohol consumption on the day of the event. Future prevention efforts could consider creating Facebook advertisements with safety messages triggered by Mifflin displays. PMID:24511865

  4. Phage display as a promising approach for vaccine development.

    PubMed

    Aghebati-Maleki, Leili; Bakhshinejad, Babak; Baradaran, Behzad; Motallebnezhad, Morteza; Aghebati-Maleki, Ali; Nickho, Hamid; Yousefi, Mehdi; Majidi, Jafar

    2016-09-29

    Bacteriophages are specific antagonists to bacterial hosts. These viral entities have attracted growing interest as optimal vaccine delivery vehicles. Phages are well-matched for vaccine design due to being highly stable under harsh environmental conditions, simple and inexpensive large scale production, and potent adjuvant capacities. Phage vaccines have efficient immunostimulatory effects and present a high safety profile because these viruses have made a constant relationship with the mammalian body during a long-standing evolutionary period. The birth of phage display technology has been a turning point in the development of phage-based vaccines. Phage display vaccines are made by expressing multiple copies of an antigen on the surface of immunogenic phage particles, thereby eliciting a powerful and effective immune response. Also, the ability to produce combinatorial peptide libraries with a highly diverse pool of randomized ligands has transformed phage display into a straightforward, versatile and high throughput screening methodology for the identification of potential vaccine candidates against different diseases in particular microbial infections. These libraries can be conveniently screened through an affinity selection-based strategy called biopanning against a wide variety of targets for the selection of mimotopes with high antigenicity and immunogenicity. Also, they can be panned against the antiserum of convalescent individuals to recognize novel peptidomimetics of pathogen-related epitopes. Phage display has represented enormous promise for finding new strategies of vaccine discovery and production and current breakthroughs promise a brilliant future for the development of different phage-based vaccine platforms.

  5. Investigation of display issues relevant to the presentation of aircraft fault information

    NASA Technical Reports Server (NTRS)

    Allen, Donald M.

    1989-01-01

    This research, performed as a part of NASA Langley's Faultfinder project, investigated display implementation issues related to the introduction of real time fault diagnostic systems into next generation commercial aircraft. Three major issues were investigated: visual display styles for presenting fault related information to the crew, the form the output from the expert system should take, and methods for filtering fault related information for presentation to the crew. Twenty-four flight familiar male volunteers participated as subjects. Five subjects were NASA test pilots, six were Commercial Airline Pilots, seven were Air Force Lear Jet pilots, and six were NASA personnel familiar with flight (non-pilots). Subjects were presented with aircraft subsystem information on a CRT screen. They were required to identify the subsystems presented in a display and to remember the state (normal or abnormal) of subsystem parameter information contained in the display. The results of the study indicated that in the simpler experimental test cases (i.e., those involving single subsystem failures and composite hypothesis displays) subjects' performance did not differ across the different display formats. However, for the more complex cases (i.e., those involving multiple subsystem faults and multiple hypotheses displays), subjects' performance was superior in the text- and picture-based display formats compared to the symbol-based format. In addition, the findings suggest that a layered approached to information display is appropriate.

  6. Schematic displays for the Space Shuttle Orbiter multifunction cathode-ray-tube display system

    NASA Technical Reports Server (NTRS)

    Weiss, W.

    1979-01-01

    A standardized procedure for developing cathode ray tube displayed schematic diagrams. The displaying of Spacelab information on the space shuttle orbiter multifunction cathode ray tube display system is used to illustrate this procedure. Schematic displays with the equivalent tabular displays are compared.

  7. A primer on criticality safety

    DOE PAGES

    Costa, David A.; Cournoyer, Michael E.; Merhege, James F.; ...

    2017-05-01

    Criticality is the state of a nuclear chain reacting medium when the chain reaction is just self-sustaining (or critical). Criticality is dependent on nine interrelated parameters. Moreover, we design criticality safety controls in order to constrain these parameters to minimize fissions and maximize neutron leakage and absorption in other materials, which makes criticality more difficult or impossible to achieve. We present the consequences of criticality accidents are discussed, the nine interrelated parameters that combine to affect criticality are described, and criticality safety controls used to minimize the likelihood of a criticality accident are presented.

  8. A PC-based simulation of the National Transonic Facitity's safety microprocessor

    NASA Technical Reports Server (NTRS)

    Thibodeaux, J. J.; Kilgore, W. A.; Balakrishna, S.

    1993-01-01

    A brief study was undertaken to demonstrate the feasibility of using a state-of-the-art off-the-shelf high speed personal computer for simulating a microprocessor presently used for wind tunnel safety purposes at Langley Research Center's National Transonic Facility (NTF). Currently, there is no active display of tunnel alarm/alert safety information provided to the tunnel operators, but rather such information is periodically recorded on a process monitoring computer printout. This does not provide on-line situational information nor permit rapid identification of safety operational violations which are able to halt tunnel operations. It was therefore decided to simulate the existing algorithms and briefly evaluate a real-time display which could provide both position and trouble shooting information.

  9. 75 FR 19882 - Safety Zone; Benchmark Destination Corporate Party, Fireworks Display, San Francisco, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-16

    ... participants and spectators from the dangers associated with the pyrotechnics. Unauthorized persons or vessels... by the pyrotechnics used in these fireworks displays, it would be contrary to the public interest to... delay in the effective date of this rule would expose mariners to the dangers posed by the pyrotechnics...

  10. 76 FR 81827 - Safety Zone; Sacramento New Years Eve Fireworks Display, Sacramento, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... positions 38[deg]34'48.26'' N, 121[deg]30'38.52'' W (NAD 83) and 38[deg]34'49.84'' N, 121[deg]30'29.59'' W (NAD 83). Upon the commencement of the first fireworks display, scheduled to take place from 9 p.m. to... launch site near position 38[deg]34'48.26'' N, 121[deg]30'38.52'' W (NAD 83) within a radius of 1,000...

  11. Impact of phosphor luminance noise on the specification of high-resolution CRT displays for medical imaging

    NASA Astrophysics Data System (ADS)

    Muka, Edward; Mertelmeier, Thomas; Slone, Richard M.; Senol, Evren

    1997-05-01

    We studied the impact of CRT spot size, phosphor luminance noise and image noise on the specification of high- resolution CRT displays that address the critical needs of general chest radiography. Using Argus CRT simulation software, the design of high-resolution CRTs for the display of adult chest radiographs was studied. The simulated images were printed on a laser printer and evaluated by a board- certified radiologist, RMS. The validity of the Argus simulation was assessed by modeling a 1k X 1k pixels CRT, whose technical parameters were sufficiently well known. Comments from the observer are presented comparing the simulated 2k display and a size-matched replicate of the original screen/film image. Critical parameters like phosphor luminance efficiency and its impact on electron beam size and phosphor luminance noise and its impact on radiographic image noise are discussed. We conclude that Argus CRT simulation software can successfully model the performance of CRTs intended to display medical images permitting consideration of critical parameters without costly manufacturing trials. Based on the 2k CRT simulation results, we suggest that a low luminance noise phosphor such as type p45 be used to ensure that specifying a small spot size would yield the anticipated sharpness improvements.

  12. Flat-panel display solutions for ground-environment military displays (Invited Paper)

    NASA Astrophysics Data System (ADS)

    Thomas, J., II; Roach, R.

    2005-05-01

    Displays for military vehicles have very distinct operational and cost requirements that differ from other military applications. These requirements demand that display suppliers to Army and Marine ground-environments provide low cost equipment that is capable of operation across environmental extremes. Inevitably, COTS components form the foundation of these "affordable" display solutions. This paper will outline the major display requirements and review the options that satisfy conflicting and difficult operational demands, using newly developed equipment as an example. Recently, a new supplier was selected for the Drivers Vision Enhancer (DVE) equipment, including the Display Control Module (DCM). The paper will outline the DVE and describe development of a new DCM solution. The DVE programme, with several thousand units presently in service and operational in conflicts such as "Operation Iraqi Freedom", represents a critical balance between cost and performance. We shall describe design considerations that include selection of COTS sources, the need to minimise display modification; video interfaces, power interfaces, operator interfaces and new provisions to optimise displayed video content.

  13. Screens and Displays.

    ERIC Educational Resources Information Center

    Edstrom, Malin

    1987-01-01

    Discusses the characteristics of different computer screen technologies including the possible harmful effects on health of cathode ray tube (CRT) terminals. CRT's are compared to other technologies including liquid crystal displays, plasma displays, electroluminiscence displays, and light emitting diodes. A chart comparing the different…

  14. Seamless tiled display system

    NASA Technical Reports Server (NTRS)

    Dubin, Matthew B. (Inventor); Larson, Brent D. (Inventor); Kolosowsky, Aleksandra (Inventor)

    2006-01-01

    A modular and scalable seamless tiled display apparatus includes multiple display devices, a screen, and multiple lens assemblies. Each display device is subdivided into multiple sections, and each section is configured to display a sectional image. One of the lens assemblies is optically coupled to each of the sections of each of the display devices to project the sectional image displayed on that section onto the screen. The multiple lens assemblies are configured to merge the projected sectional images to form a single tiled image. The projected sectional images may be merged on the screen by magnifying and shifting the images in an appropriate manner. The magnification and shifting of these images eliminates any visual effect on the tiled display that may result from dead-band regions defined between each pair of adjacent sections on each display device, and due to gaps between multiple display devices.

  15. A preliminary study of head-up display assessment techniques. 2: HUD symbology and panel information search time

    NASA Technical Reports Server (NTRS)

    Guercio, J. G.; Haines, R. F.

    1978-01-01

    Twelve commercial pilots were shown 50 high-fidelity slides of a standard aircraft instrument panel with the airspeed, altitude, ADI, VSI, and RMI needles in various realistic orientations. Fifty slides showing an integrated head-up display (HUD) symbology containing an equivalent number of flight parameters as above (with flight path replacing VSI) were also shown. Each subject was told what flight parameter to search for just before each slide was exposed and was given as long as needed (12 sec maximum) to respond by verbalizing the parameter's displayed value. The results for the 100-percent correct data indicated that: there was no significant difference in mean reaction time (averaged across all five flight parameters) between the instrument panel and HUD slides; and a statistically significant difference in mean reaction time was found in responding to different flight parameters.

  16. Microlaser-based displays

    NASA Astrophysics Data System (ADS)

    Bergstedt, Robert; Fink, Charles G.; Flint, Graham W.; Hargis, David E.; Peppler, Philipp W.

    1997-07-01

    Laser Power Corporation has developed a new type of projection display, based upon microlaser technology and a novel scan architecture, which provides the foundation for bright, extremely high resolution images. A review of projection technologies is presented along with the limitations of each and the difficulties they experience in trying to generate high resolution imagery. The design of the microlaser based projector is discussed along with the advantage of this technology. High power red, green, and blue microlasers have been designed and developed specifically for use in projection displays. These sources, in combination with high resolution, high contrast modulator, produce a 24 bit color gamut, capable of supporting the full range of real world colors. The new scan architecture, which reduces the modulation rate and scan speeds required, is described. This scan architecture, along with the inherent brightness of the laser provides the fundamentals necessary to produce a 5120 by 4096 resolution display. The brightness and color uniformity of the display is excellent, allowing for tiling of the displays with far fewer artifacts than those in a traditionally tiled display. Applications for the display include simulators, command and control centers, and electronic cinema.

  17. Maintenance Procedure Display: Head Mounted Display (HMD) Evaluations

    NASA Technical Reports Server (NTRS)

    Whitmore, Milrian; Litaker, Harry L., Jr.; Solem, Jody A.; Holden, Kritina L.; Hoffman, Ronald R.

    2007-01-01

    A viewgraph presentation describing maintenance procedures for head mounted displays is shown. The topics include: 1) Study Goals; 2) Near Eye Displays (HMDs); 3) Design; 4) Phase I-Evaluation Methods; 5) Phase 1 Results; 6) Improved HMD Mounting; 7) Phase 2 -Evaluation Methods; 8) Phase 2 Preliminary Results; and 9) Next Steps.

  18. Automotive HUDs: the overlooked safety issues.

    PubMed

    Tufano, D R

    1997-06-01

    The transfer of tactical aviation technology into automobiles is creating information display requirements that are likely to be met by use of the head-up display (HUD). These developments are based largely on conclusions that the HUD-related safety issues raised in the aviation HUD literature can be dismissed and that the benefits of using HUDs are certain. Such conclusions either neglect relevant research or are supported by a very small amount of evidence, much of which is either irrelevant or generated within a flawed methodological paradigm. This critical review covers the issues of (a) HUD focal distance and its effect on the perception of outside objects and (b) the effects of HUD imagery on visual attention. The issues of focal distance, cognitive capture, and the inherent connection between the two may have a greater impact on safety in the automotive context than they do in aviation.

  19. Polyplanar optic display

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Veligdan, J.; Biscardi, C.; Brewster, C.

    1997-07-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. This display screen is 2 inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. The new display uses a 100 milliwatt green solid state laser (532 nm) as its optical source. In order to produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments, Inc.more » A variable astigmatic focusing system is used to produce a stigmatic image on the viewing face of the POD. In addition to the optical design, the authors discuss the electronic interfacing to the DLP{trademark} chip, the opto-mechanical design and viewing angle characteristics.« less

  20. ORFeome Phage Display.

    PubMed

    Zantow, Jonas; Moreira, Gustavo Marçal Schmidt Garcia; Dübel, Stefan; Hust, Michael

    2018-01-01

    ORFeome phage display allows the efficient functional screening of entire proteomes or even metaproteomes to identify immunogenic proteins. For this purpose, randomly fragmented, whole genomes or metagenomes are cloned into a phage-display vector allowing positive selection for open reading frames (ORF) to improve the library quality. These libraries display all possible proteins encoded by a pathogen or a microbiome on the phage surface. Consequently, immunogenic proteins can be selected from these libraries using disease-related immunoglobulins from patient serum. ORFeome phage display in particular allows the identification of immunogenic proteins that are only expressed in the host-pathogen interaction but not in cultivation, as well as the detection of very low expressed and very small immunogens and immunogenic proteins of non-cultivable organisms. The identified immunogenic proteins are potential biomarkers for the development of diagnostic assays or vaccines. These articles will give an introduction to ORFeome phage-display technology and give detailed protocols to identify immunogenic proteins by phage display.

  1. 78 FR 8063 - Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-05

    ... proposes to add three new fireworks events and to correct the location of five existing events to ensure... display locations have been added to area, and the title of the rule does not accurately reflect what is.... This rule proposes to add the following firework displays: Port Ludlow Fireworks, latitude 47[deg] 55...

  2. Oversight of OSHA with Respect to Video Display Terminals in the Workplace. A Staff Report for the Subcommittee on Health and Safety of the Committee on Education and Labor. House of Representatives, Ninety-Ninth Congress, First Session (August 1985).

    ERIC Educational Resources Information Center

    Dwyer, Paul F.

    Drawing on testimony presented at hearings before the Subcommittee on Health and Safety of the House of Representatives conducted between February 28 and June 12, 1984, this staff report addresses the general topic of video display terminals (VDTs) and possible health hazards in the workplace. An introduction presents the history of the…

  3. 78 FR 30762 - Safety Zone; 2013 Fish Festival Fireworks, Lake Erie, Vermilion, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-23

    ...-AA00 Safety Zone; 2013 Fish Festival Fireworks, Lake Erie, Vermilion, OH AGENCY: Coast Guard, DHS... during the 2013 Fish Festival Fireworks display. This temporary safety zone is necessary to protect... necessary to ensure the safety of spectators and vessels during the 2013 Fish Festival Fireworks. This zone...

  4. 14 CFR 415.127 - Flight safety system design and operation data.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... system and subsystems design and operational requirements. (c) Flight safety system diagram. An applicant... subsystems. The diagram must include the following subsystems defined in part 417, subpart D of this chapter... data processing, display, and recording system; and flight safety official console. (d) Subsystem...

  5. 14 CFR 415.127 - Flight safety system design and operation data.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... system and subsystems design and operational requirements. (c) Flight safety system diagram. An applicant... subsystems. The diagram must include the following subsystems defined in part 417, subpart D of this chapter... data processing, display, and recording system; and flight safety official console. (d) Subsystem...

  6. 14 CFR 415.127 - Flight safety system design and operation data.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... system and subsystems design and operational requirements. (c) Flight safety system diagram. An applicant... subsystems. The diagram must include the following subsystems defined in part 417, subpart D of this chapter... data processing, display, and recording system; and flight safety official console. (d) Subsystem...

  7. 14 CFR 415.127 - Flight safety system design and operation data.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... system and subsystems design and operational requirements. (c) Flight safety system diagram. An applicant... subsystems. The diagram must include the following subsystems defined in part 417, subpart D of this chapter... data processing, display, and recording system; and flight safety official console. (d) Subsystem...

  8. 77 FR 38492 - Safety Zone; Olcott Fireworks, Lake Ontario, Olcott, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ... 1625-AA00 Safety Zone; Olcott Fireworks, Lake Ontario, Olcott, NY AGENCY: Coast Guard, DHS. ACTION... the Olcott fireworks on July 3, 2012. The safety zone is necessary to protect participants, spectators, and vessels from the hazards associated with a firework display. [[Page 38493

  9. 78 FR 24071 - Safety Zone; Pasquotank River; Elizabeth City, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-24

    ... 1625-AA00 Safety Zone; Pasquotank River; Elizabeth City, NC AGENCY: Coast Guard, DHS. ACTION: Temporary... Pasquotank River in Elizabeth City, NC in support of the Fireworks display for the Potato Festival. This... Guard is establishing a safety zone on the navigable waters of Pasquotank River in Elizabeth City, NC...

  10. Design and simulation of a tactile display based on a CMUT array

    NASA Astrophysics Data System (ADS)

    Chouvardas, Vasilios G.; Hatalis, Miltiadis K.; Miliou, Amalia N.

    2012-10-01

    In this article, we present the design of a tactile display based on a CMUT-phased array. The array implements a 'pixel' of the display and is used to focus airborne ultrasound energy on the skin surface. The pressure field, generated by the focused ultrasound waves, is used to excite the mechanoreceptors under the skin and transmit tactile information. The results of Finite Element Analysis (FEA) of the Capacitive Micromachined Ultrasonic Transducer (CMUT) and the CMUT-phased array for ultrasound emission are presented. The 3D models of the device and the array were developed using a commercial FEA package. Modelling and simulations were performed using the parameters from the POLYMUMPS surface micromachining technology from MEMSCAP. During the analysis of the phased array, several parameters were studied in order to determine their importance in the design of the tactile display. The output of the array is compared with the acoustic intensity thresholds in order to prove the feasibility of the design. Taking into account the density of the mechanoreceptors in the skin, we conclude that there should be at least one receptor under the excitation area formed on the skin.

  11. Display technology - Human factors concepts

    NASA Astrophysics Data System (ADS)

    Stokes, Alan; Wickens, Christopher; Kite, Kirsten

    1990-03-01

    Recent advances in the design of aircraft cockpit displays are reviewed, with an emphasis on their applicability to automobiles. The fundamental principles of display technology are introduced, and individual chapters are devoted to selective visual attention, command and status displays, foveal and peripheral displays, navigational displays, auditory displays, color and pictorial displays, head-up displays, automated systems, and dual-task performance and pilot workload. Diagrams, drawings, and photographs of typical displays are provided.

  12. Design of virtual display and testing system for moving mass electromechanical actuator

    NASA Astrophysics Data System (ADS)

    Gao, Zhigang; Geng, Keda; Zhou, Jun; Li, Peng

    2015-12-01

    Aiming at the problem of control, measurement and movement virtual display of moving mass electromechanical actuator(MMEA), the virtual testing system of MMEA was developed based on the PC-DAQ architecture and the software platform of LabVIEW, and the comprehensive test task such as drive control of MMEA, tests of kinematic parameter, measurement of centroid position and virtual display of movement could be accomplished. The system could solve the alignment for acquisition time between multiple measurement channels in different DAQ cards, then on this basis, the researches were focused on the dynamic 3D virtual display by the LabVIEW, and the virtual display of MMEA were realized by the method of calling DLL and the method of 3D graph drawing controls. Considering the collaboration with the virtual testing system, including the hardware drive, the measurement software of data acquisition, and the 3D graph drawing controls method was selected, which could obtained the synchronization measurement, control and display. The system can measure dynamic centroid position and kinematic position of movable mass block while controlling the MMEA, and the interface of 3D virtual display has realistic effect and motion smooth, which can solve the problem of display and playback about MMEA in the closed shell.

  13. Adapter-directed display: a modular design for shuttling display on phage surfaces.

    PubMed

    Wang, Kevin Caili; Wang, Xinwei; Zhong, Pingyu; Luo, Peter Peizhi

    2010-02-05

    A novel adapter-directed phage display system was developed with modular features. In this system, the target protein is expressed as a fusion protein consisting of adapter GR1 from the phagemid vector, while the recombinant phage coat protein is expressed as a fusion protein consisting of adapter GR2 in the helper phage vector. Surface display of the target protein is accomplished through specific heterodimerization of GR1 and GR2 adapters, followed by incorporation of the heterodimers into phage particles. A series of engineered helper phages were constructed to facilitate both display valency and formats, based on various phage coat proteins. As the target protein is independent of a specific phage coat protein, this modular system allows the target protein to be displayed on any given phage coat protein and allows various display formats from the same vector without the need for reengineering. Here, we demonstrate the shuttling display of a single-chain Fv antibody on phage surfaces between multivalent and monovalent formats, as well as the shuttling display of an antigen-binding fragment molecule on phage coat proteins pIII, pVII, and pVIII using the same phagemid vectors combined with different helper phage vectors. This adapter-directed display concept has been applied to eukaryotic yeast surface display and to a novel cross-species display that can shuttle between prokaryotic phage and eukaryotic yeast systems. Copyright 2009 Elsevier Ltd. All rights reserved.

  14. 77 FR 14703 - Safety Zone, Temporary Change for Recurring Fireworks Display Within the Fifth Coast Guard...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-13

    .... Safety zone regulations are necessary to provide for the safety of life on navigable waters during the... To view comments, as well as documents mentioned in this preamble as being available in the docket... [[Page 14705

  15. Effects of psychological stress test on the cardiac response of public safety workers: alternative parameters to autonomic balance

    NASA Astrophysics Data System (ADS)

    Huerta-Franco, M. R.; Vargas-Luna, F. M.; Delgadillo-Holtfort, I.

    2015-01-01

    It is well known that public safety workers (PSW) face many stressful situations that yield them as high-risk population for suffering chronic stress diseases. In this multidisciplinary research the cardiac response to induced psychological stress by a short duration Stroop test was evaluated in 20 female and 19 male PSW, in order to compare traditionally used cardiac response parameters with alternative ones. Electrocardiograms have been recorded using the Eindhoven electrodes configuration for 1 min before, 3 min during and 1 min after the test. Signals analysis has been performed for the heart rate and the power spectra of its variability and of the variability of the amplitude of the R-wave, i.e. the highest peak of the electrocardiographic signal periodic sequence. The results demonstrated that the traditional autonomic balance index shows no significant differences between stages. In contrast, the median of the area of the power spectrum of the R-wave amplitude variability in the frequency region dominated by the autonomous nervous system (0.04-to-0.4 Hz) is the more sensitive parameter. Moreover, this parameter allows to identify gender differences consistent with those encountered in other studies.

  16. 78 FR 44433 - Safety Zone; Metedeconk River; Brick Township, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-24

    ...-AA00 Safety Zone; Metedeconk River; Brick Township, NJ AGENCY: Coast Guard, DHS. ACTION: Temporary... recurring fireworks event held in the Metedeconk River in Brick Township, NJ. The fireworks display is... for the Metedeconk River, Brick Township, NJ Safety Zone will be added from 6:30 p.m. until 10 p.m. on...

  17. Flight Test Comparison of Synthetic Vision Display Concepts at Dallas/Fort Worth International Airport

    NASA Technical Reports Server (NTRS)

    Glaab, Louis J.; Kramer, Lynda J.; Arthur, Trey; Parrish, Russell V.; Barry, John S.

    2003-01-01

    Limited visibility is the single most critical factor affecting the safety and capacity of worldwide aviation operations. Synthetic Vision Systems (SVS) technology can solve this visibility problem with a visibility solution. These displays employ computer-generated terrain imagery to present 3D, perspective out-the-window scenes with sufficient information and realism to enable operations equivalent to those of a bright, clear day, regardless of weather conditions. To introduce SVS display technology into as many existing aircraft as possible, a retrofit approach was defined that employs existing HDD display capabilities for glass cockpits and HUD capabilities for the other aircraft. This retrofit approach was evaluated for typical nighttime airline operations at a major international airport. Overall, 6 evaluation pilots performed 75 research approaches, accumulating 18 hours flight time evaluating SVS display concepts that used the NASA LaRC's Boeing B-757-200 aircraft at Dallas/Fort Worth International Airport. Results from this flight test establish the SVS retrofit concept, regardless of display size, as viable for tested conditions. Future assessments need to extend evaluation of the approach to operations in an appropriate, terrain-challenged environment with daytime test conditions.

  18. System status display information

    NASA Technical Reports Server (NTRS)

    Summers, L. G.; Erickson, J. B.

    1984-01-01

    The system Status Display is an electronic display system which provides the flight crew with enhanced capabilities for monitoring and managing aircraft systems. Guidelines for the design of the electronic system displays were established. The technical approach involved the application of a system engineering approach to the design of candidate displays and the evaluation of a Hernative concepts by part-task simulation. The system engineering and selection of candidate displays are covered.

  19. Effect of changes in technical parameters in radiological safety

    NASA Astrophysics Data System (ADS)

    Avendaño, Ge; Fernandez, C.

    2007-11-01

    This work analyzes the generation of secondary radiation that affects the professionals of health during interventional X ray procedures in first level hospitals. The research objectives were, on the one hand, to quantify the amount of radiation and to compare it with norms in force with respect to magnitudes, and on the other hand to evaluate the elements of protection used. The measurements will help to improve the radiological safety, to assess the eventuality of risks and, in the last term, to the possibility of norms modification for the improvement of the protection, especially that of the personnel who daily make a certain amount of interventional procedures guided by radiation, like angiographic cine applications, using continuous or pulsed fluoroscopy. The motivation of the study is in the suspicion that present interventionism is made with a false sensation of safety, based only in the use of lead apron and protection elements incorporated in the equipment by the manufacturer, nevertheless not always the health personnel are conscious that an excessive proximity with the tube and the patient body becomes a risky source of secondary and scattered radiation. The obtained results allow us to demonstrate the existence of conditions of risk, even possible iatrogenic events, in particular when the procedures imply the use of certain techniques of radiographic exploration, thus reaching the conclusion that the radiographic methodology must be changed in order to rationalize so much?. In order to achieve this we propose modifications to the present norms and legislation referred to the radiological safety in Chile.

  20. Performance considerations for high-definition head-mounted displays

    NASA Technical Reports Server (NTRS)

    Edwards, Oliver J.; Larimer, James; Gille, Jennifer

    1992-01-01

    Design image-optimization for helmet-mounted displays (HMDs) for military systems is presently discussed within the framework of a systems-engineering approach that encompasses (1) a description of natural targets in the field; (2) the characteristics of human visual perception; and (3) device specifications that directly relate to these ecological and human-factors parameters. Attention is given to target size and contrast and the relationship of the modulation transfer function to image resolution.

  1. Histogram-based ionogram displays and their application to autoscaling

    NASA Astrophysics Data System (ADS)

    Lynn, Kenneth J. W.

    2018-03-01

    A simple method is described for displaying and auto scaling the basic ionogram parameters foF2 and h'F2 as well as some additional layer parameters from digital ionograms. The technique employed is based on forming frequency and height histograms in each ionogram. This technique has now been applied specifically to ionograms produced by the IPS5D ionosonde developed and operated by the Australian Space Weather Service (SWS). The SWS ionograms are archived in a cleaned format and readily available from the SWS internet site. However, the method is applicable to any ionosonde which produces ionograms in a digital format at a useful signal-to-noise level. The most novel feature of the technique for autoscaling is its simplicity and the avoidance of the mathematical imaging and line fitting techniques often used. The program arose from the necessity to display many days of ionogram output to allow the location of specific types of ionospheric event such as ionospheric storms, travelling ionospheric disturbances and repetitive ionospheric height changes for further investigation and measurement. Examples and applications of the method are given including the removal of sporadic E and spread F.

  2. Color matrix display simulation based upon luminance and chromatic contrast sensitivity of early vision

    NASA Technical Reports Server (NTRS)

    Martin, Russel A.; Ahumada, Albert J., Jr.; Larimer, James O.

    1992-01-01

    This paper describes the design and operation of a new simulation model for color matrix display development. It models the physical structure, the signal processing, and the visual perception of static displays, to allow optimization of display design parameters through image quality measures. The model is simple, implemented in the Mathematica computer language, and highly modular. Signal processing modules operate on the original image. The hardware modules describe backlights and filters, the pixel shape, and the tiling of the pixels over the display. Small regions of the displayed image can be visualized on a CRT. Visual perception modules assume static foveal images. The image is converted into cone catches and then into luminance, red-green, and blue-yellow images. A Haar transform pyramid separates the three images into spatial frequency and direction-specific channels. The channels are scaled by weights taken from human contrast sensitivity measurements of chromatic and luminance mechanisms at similar frequencies and orientations. Each channel provides a detectability measure. These measures allow the comparison of images displayed on prospective devices and, by that, the optimization of display designs.

  3. Flight Demonstration of Integrated Airport Surface Technologies for Increased Capacity and Safety

    NASA Technical Reports Server (NTRS)

    Jones, Denise R.; Young, Steven D.; Wills, Robert W.; Smith, Kathryn A.; Shipman, Floyd S.; Bryant, Wayne H.; Eckhardt, Dave E., Jr.

    1998-01-01

    A flight demonstration was conducted to address airport surface movement area capacity and safety issues by providing pilots with enhanced situational awareness information. The demonstration presented an integration of several technologies to government and industry representatives. These technologies consisted of an electronic moving map display in the cockpit, a Differential Global Positioning system (DGPS) receiver, a high speed very high frequency (VHF) data link, an Airport Surface Detection Equipment (ASDE-3) radar, and the Airport Movement Area Safety System (AMASS). Aircraft identification was presented to an air traffic controller on an AMASS display. The onboard electronic map included the display of taxi routes, hold instructions, and clearances, which were sent to the aircraft via data link by the controller. The map also displayed the positions of other traffic and warning information, which were sent to the aircraft automatically from the ASDE-3/AMASS system. This paper describes the flight demonstration in detail, along with test results.

  4. A model of clutter for complex, multivariate geospatial displays.

    PubMed

    Lohrenz, Maura C; Trafton, J Gregory; Beck, R Melissa; Gendron, Marlin L

    2009-02-01

    A novel model of measuring clutter in complex geospatial displays was compared with human ratings of subjective clutter as a measure of convergent validity. The new model is called the color-clustering clutter (C3) model. Clutter is a known problem in displays of complex data and has been shown to affect target search performance. Previous clutter models are discussed and compared with the C3 model. Two experiments were performed. In Experiment 1, participants performed subjective clutter ratings on six classes of information visualizations. Empirical results were used to set two free parameters in the model. In Experiment 2, participants performed subjective clutter ratings on aeronautical charts. Both experiments compared and correlated empirical data to model predictions. The first experiment resulted in a .76 correlation between ratings and C3. The second experiment resulted in a .86 correlation, significantly better than results from a model developed by Rosenholtz et al. Outliers to our correlation suggest further improvements to C3. We suggest that (a) the C3 model is a good predictor of subjective impressions of clutter in geospatial displays, (b) geospatial clutter is a function of color density and saliency (primary C3 components), and (c) pattern analysis techniques could further improve C3. The C3 model could be used to improve the design of electronic geospatial displays by suggesting when a display will be too cluttered for its intended audience.

  5. Optimization of electro-optical parameters of LCD for advertising systems

    NASA Astrophysics Data System (ADS)

    Olifierczuk, Marek; Zielinski, Jerzy; Klosowicz, Stanislaw J.

    1998-02-01

    The analysis of the optimization of negative image twisted nematic LCD is presented. Theoretical considerations are confirmed by experimental results. The effect of material parameters and technology on the contrast ratio and display dynamics is given. The effect in TN display with black dye is presented.

  6. Human factors considerations in the design and evaluation of flight deck displays and controls : version 2.0

    DOT National Transportation Integrated Search

    2016-12-01

    The objective of this effort is to have a single source reference document for human factors regulatory and guidance material for flight deck displays and controls, in the interest of improving aviation safety. This document identifies guidance on hu...

  7. Radiographers' professional knowledge regarding parameters and safety issues in plain radiography: a questionnaire survey.

    PubMed

    Farajollahi, A R; Fouladi, D F; Ghojazadeh, M; Movafaghi, A

    2014-08-01

    To review the knowledge of radiographers and examine the possible sociodemographic and situational contributors to this knowledge. A questionnaire survey was devised and distributed to a cohort of 120 radiographers. Each questionnaire contained two sections. In the first section, background data, including sex, age, highest academic level, grade point average (GPA), length of time from graduation, work experience as a radiographer and the status of previous refresher course(s), were collected. The second section contained 17 multiple-choice questions concerning radiographic imaging parameters and safety issues. The response rate was 63.8%. In univariate analytic model, higher academic degree (p < 0.001), higher GPA (r(2) = 0.11; p = 0.001), academic workplace (p = 0.04) and taking previous refresher course(s) (p = 0.01) were significantly associated with higher knowledge score. In multivariate analytic model, however, higher academic degree (B = 1.62; p = 0.01), higher GPA (B = 0.50; p = 0.01) and taking previous refresher course(s) (B = -1.26; p = 0.03) were independently associated with higher level of knowledge. Age, sex, length of time from graduation and work experience were not associated with the respondents' knowledge score. Academic background is a robust indicator of a radiographer's professional knowledge. Refresher courses and regular knowledge assessments are highly recommended. This is the first study in the literature that examines professional knowledge of radiographers in terms of technical and safety issues in plain radiography. Academic degree, GPA and refresher courses are independent predictors of this knowledge. Regular radiographer professional knowledge checks may be recommended.

  8. 77 FR 42642 - Safety Zone; City of Ogdensburg Fireworks, St. Lawrence River, Ogdensburg, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-20

    ...-AA00 Safety Zone; City of Ogdensburg Fireworks, St. Lawrence River, Ogdensburg, NY AGENCY: Coast Guard... the St. Lawrence River, Ogdensburg, NY. This safety zone is intended to restrict vessels from a portion of the St. Lawrence River during the City of Ogdensburg Fireworks display. This temporary safety...

  9. Liquid Crystal Airborne Display

    DTIC Science & Technology

    1977-08-01

    Cum.nings, J. P., et al., Properties and Limitations oe Liquid Crystals for Aircraft Displays, Honeywell Corporate Researc ."I Center, Final Report HR-72...basic module could be used to build displays for both the commercial and military! 157- marhecs, and so would establi sh a broad and sizable market ... market for the display becomes a reality; therein lies, f TABLE 16 THE COURSE OF FUTURE DISPLAY DEVELOPMENT Today 1976-77 1980 1985 Display Size 2" 1 3.2

  10. Cytoplasmic bacteriophage display system

    DOEpatents

    Studier, F.W.; Rosenberg, A.H.

    1998-06-16

    Disclosed are display vectors comprising DNA encoding a portion of a structural protein from a cytoplasmic bacteriophage, joined covalently to a protein or peptide of interest. Exemplified are display vectors wherein the structural protein is the T7 bacteriophage capsid protein. More specifically, in the exemplified display vectors the C-terminal amino acid residue of the portion of the capsid protein is joined to the N-terminal residue of the protein or peptide of interest. The portion of the T7 capsid protein exemplified comprises an N-terminal portion corresponding to form 10B of the T7 capsid protein. The display vectors are useful for high copy number display or lower copy number display (with larger fusion). Compositions of the type described herein are useful in connection with methods for producing a virus displaying a protein or peptide of interest. 1 fig.

  11. Cytoplasmic bacteriophage display system

    DOEpatents

    Studier, F. William; Rosenberg, Alan H.

    1998-06-16

    Disclosed are display vectors comprising DNA encoding a portion of a structural protein from a cytoplasmic bacteriophage, joined covalently to a protein or peptide of interest. Exemplified are display vectors wherein the structural protein is the T7 bacteriophage capsid protein. More specifically, in the exemplified display vectors the C-terminal amino acid residue of the portion of the capsid protein is joined to the N-terminal residue of the protein or peptide of interest. The portion of the T7 capsid protein exemplified comprises an N-terminal portion corresponding to form 10B of the T7 capsid protein. The display vectors are useful for high copy number display or lower copy number display (with larger fusion). Compositions of the type described herein are useful in connection with methods for producing a virus displaying a protein or peptide of interest.

  12. 78 FR 75248 - Safety Zone; Sacramento New Years Eve Fireworks Display, Sacramento River, Sacramento, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-11

    ...[deg]30'29.61'' W (NAD 83). Upon the commencement of the fireworks display, scheduled to begin at 9 p.m..., 121[deg]30'29.61'' W (NAD 83) within a radius of 1,000 feet. At the conclusion of the fireworks...

  13. 33 CFR 165.1706 - Gastineau Channel, Juneau, Alaska-Safety Zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... at 58°17′41″ N, 134°24′22″ W used to conduct fireworks displays. (b) Effective date. The safety zone becomes effective on July 3 each year at 10 p.m. ADT. It terminates at the conclusion of the fireworks... Port. If the fireworks display is postponed because of inclement weather, the date and duration of the...

  14. Operational durability of a giant ER valve for Braille display

    NASA Astrophysics Data System (ADS)

    Luning, Xu; Han, Li; Yufei, Li; Shen, Rong; Kunquan, Lu

    2017-05-01

    The compact configuration of giant ER (electrorheological) valves provides the possibility of realizing a full-page Braille display. The operational durability of ER valves is a key issue in fulfilling a Braille display. A giant ER valve was used to investigate the variations in pressure drops and critical pressure drops of the valves over a long period under some typical operational parameters. The results indicate that neither the pressure drops nor critical pressure drops of giant ER valves show apparent deterioration over a long period. Without ER fluid exchange, a blockage appears in the channel of the valve because the ER structures induced by an external electric field cannot be broken by the Brownian motion of hydraulic oil molecules when the external electric field is removed. Forcing ER fluid flow is an effective and necessary method to keep the channel of the valve unblocked. Thus the operational durability of the valve using giant ER fluids is able to meet the demands of Braille display.

  15. JAVA Stereo Display Toolkit

    NASA Technical Reports Server (NTRS)

    Edmonds, Karina

    2008-01-01

    This toolkit provides a common interface for displaying graphical user interface (GUI) components in stereo using either specialized stereo display hardware (e.g., liquid crystal shutter or polarized glasses) or anaglyph display (red/blue glasses) on standard workstation displays. An application using this toolkit will work without modification in either environment, allowing stereo software to reach a wider audience without sacrificing high-quality display on dedicated hardware. The toolkit is written in Java for use with the Swing GUI Toolkit and has cross-platform compatibility. It hooks into the graphics system, allowing any standard Swing component to be displayed in stereo. It uses the OpenGL graphics library to control the stereo hardware and to perform the rendering. It also supports anaglyph and special stereo hardware using the same API (application-program interface), and has the ability to simulate color stereo in anaglyph mode by combining the red band of the left image with the green/blue bands of the right image. This is a low-level toolkit that accomplishes simply the display of components (including the JadeDisplay image display component). It does not include higher-level functions such as disparity adjustment, 3D cursor, or overlays all of which can be built using this toolkit.

  16. 76 FR 37643 - Safety Zone; Delta Independence Day Foundation Celebration, Mandeville Island, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ... with the pyrotechnics. Unauthorized persons or vessels are prohibited from entering into, transiting... the dangers posed by the pyrotechnics used in this fireworks display, the safety zone is necessary to... fireworks launch site during loading of the pyrotechnics, and during the fireworks display. This restricted...

  17. 77 FR 38490 - Safety Zone; Mentor Harbor Yachting Club Fireworks, Lake Erie, Mentor, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ...-AA00 Safety Zone; Mentor Harbor Yachting Club Fireworks, Lake Erie, Mentor, OH AGENCY: Coast Guard, DHS... Erie, Mentor, OH. This safety zone is intended to restrict vessels from a portion of Lake Erie during the Mentor Harbor Yachting Club fireworks display. This temporary safety zone is necessary to protect...

  18. Display Tactics

    ERIC Educational Resources Information Center

    Tetlow, Linda

    2009-01-01

    Display took a wide variety of forms ranging from students presenting their initial planning and thought processes, to displays of their finished work, and their suggestions for extending the task should they, or others, have time to return to it in the future. A variety of different media were used from traditional posters in many shapes and…

  19. Comparison of organic electroluminescence and liquid crystal displays for clinical utility in orthopedic endoscopic surgery.

    PubMed

    Dezawa, Akira; Sairyo, Koichi

    2014-05-01

    Organic electroluminescence displays (OELD) use organic materials that self-emit light with the passage of an electric current. OELD provide high contrast, excellent color reproducibility at low brightness, excellent video images, and less restricted viewing angles. OELD are thus promising for medical use. This study compared the utility of an OELD with conventional liquid crystal displays (LCD) for imaging in orthopedic endoscopic surgery. One OELD and two conventional LCD that were indistinguishable in external appearance were used in this study. Images from 18 patients were displayed simultaneously on three monitors and evaluated by six orthopedic surgeons with extensive surgical experience. Images were shown for 2 min, repeated twice, and viewed from the front and side (diagonally). Surgeon rated both clinical utility (12 parameters) and image quality (11 parameters) for each image on a 5-point scale: 1, very good; 2, good; 3, average; 4, poor; and 5, very poor. For clinical utility in 16 percutaneous endoscopic discectomy cases, mean scores for all 12 parameters were significantly better on the OELD than on the LCD, including organ distinguishability (2.1 vs 3.2, respectively), lesion identification (2.2 vs 3.1), and overall viewing impression (2.1 vs 3.1). For image quality, all 11 parameters were better on the OELD than on LCD. Significant differences were identified in six parameters, including contrast (1.8 vs 2.9), color reproducibility in dark areas (1.8 vs 2.9), and viewing angle (2.2 vs 2.9). The high contrast and excellent color reproducibility of the OELD reduced the constraints of imaging under endoscopy, in which securing a field of view may be difficult. Distinguishability of organs was good, including ligaments, dura mater, nerves, and adipose tissue, contributing to good stereoscopic images of the surgical field. These findings suggest the utility of OELD for excellent display of surgical images and for enabling safe and highly accurate

  20. An automated calibration method for non-see-through head mounted displays.

    PubMed

    Gilson, Stuart J; Fitzgibbon, Andrew W; Glennerster, Andrew

    2011-08-15

    Accurate calibration of a head mounted display (HMD) is essential both for research on the visual system and for realistic interaction with virtual objects. Yet, existing calibration methods are time consuming and depend on human judgements, making them error prone, and are often limited to optical see-through HMDs. Building on our existing approach to HMD calibration Gilson et al. (2008), we show here how it is possible to calibrate a non-see-through HMD. A camera is placed inside a HMD displaying an image of a regular grid, which is captured by the camera. The HMD is then removed and the camera, which remains fixed in position, is used to capture images of a tracked calibration object in multiple positions. The centroids of the markers on the calibration object are recovered and their locations re-expressed in relation to the HMD grid. This allows established camera calibration techniques to be used to recover estimates of the HMD display's intrinsic parameters (width, height, focal length) and extrinsic parameters (optic centre and orientation of the principal ray). We calibrated a HMD in this manner and report the magnitude of the errors between real image features and reprojected features. Our calibration method produces low reprojection errors without the need for error-prone human judgements. Copyright © 2011 Elsevier B.V. All rights reserved.

  1. Displays and simulators

    NASA Astrophysics Data System (ADS)

    Mohon, N.

    A 'simulator' is defined as a machine which imitates the behavior of a real system in a very precise manner. The major components of a simulator and their interaction are outlined in brief form, taking into account the major components of an aircraft flight simulator. Particular attention is given to the visual display portion of the simulator, the basic components of the display, their interactions, and their characteristics. Real image displays are considered along with virtual image displays, and image generators. Attention is given to an advanced simulator for pilot training, a holographic pancake window, a scan laser image generator, the construction of an infrared target simulator, and the Apollo Command Module Simulator.

  2. Effect of protein properties on display efficiency using the M13 phage display system.

    PubMed

    Imai, S; Mukai, Y; Takeda, T; Abe, Y; Nagano, K; Kamada, H; Nakagawa, S; Tsunoda, S; Tsutsumi, Y

    2008-10-01

    The M13 phage display system is a powerful technology for engineering proteins such as functional mutant proteins and peptides. In this system, it is necessary that the protein is displayed on the phage surface. Therefore, its application is often limited when a protein is poorly displayed. In this study, we attempted to understand the relationship between a protein's properties and its display efficiency using the well-known pIII and pVIII type phage display system. The display of positively charged SV40 NLS and HIV-1 Tat peptides on pill was less efficient than that of the neutrally charged RGDS peptide. When different molecular weight proteins (1.5-58 kDa) were displayed on pIII and pVIII, their display efficiencies were directly influenced by their molecular weights. These results indicate the usefulness in predicting a desired protein's compatibility with protein and peptide engineering using the phage display system.

  3. Displays enabling mobile multimedia

    NASA Astrophysics Data System (ADS)

    Kimmel, Jyrki

    2007-02-01

    With the rapid advances in telecommunications networks, mobile multimedia delivery to handsets is now a reality. While a truly immersive multimedia experience is still far ahead in the mobile world, significant advances have been made in the constituent audio-visual technologies to make this become possible. One of the critical components in multimedia delivery is the mobile handset display. While such alternatives as headset-style near-to-eye displays, autostereoscopic displays, mini-projectors, and roll-out flexible displays can deliver either a larger virtual screen size than the pocketable dimensions of the mobile device can offer, or an added degree of immersion by adding the illusion of the third dimension in the viewing experience, there are still challenges in the full deployment of such displays in real-life mobile communication terminals. Meanwhile, direct-view display technologies have developed steadily, and can provide a development platform for an even better viewing experience for multimedia in the near future. The paper presents an overview of the mobile display technology space with an emphasis on the advances and potential in developing direct-view displays further to meet the goal of enabling multimedia in the mobile domain.

  4. EMU helmet mounted display

    NASA Technical Reports Server (NTRS)

    Marmolejo, Jose (Inventor); Smith, Stephen (Inventor); Plough, Alan (Inventor); Clarke, Robert (Inventor); Mclean, William (Inventor); Fournier, Joseph (Inventor)

    1990-01-01

    A helmet mounted display device is disclosed for projecting a display on a flat combiner surface located above the line of sight where the display is produced by two independent optical channels with independent LCD image generators. The display has a fully overlapped field of view on the combiner surface and the focus can be adjusted from a near field of four feet to infinity.

  5. Interior. Apparatus displayed approximately as it was for a series ...

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

    Interior. Apparatus displayed approximately as it was for a series of experiments on rubber extraction from the goldenrod plant which Edison conducted during the late 1920's. These experiments were some of the last which Edison was involved in before the illness which led to his death in 1931. Chemical bottles contain various standard chemicals, also from this later period. In 1980 extremely toxic, carcinogenic, and explosive materials were removed for museum visitor safety. - Thomas A. Edison Laboratories, Building No. 2, Main Street & Lakeside Avenue, West Orange, Essex County, NJ

  6. Cycling transport safety quantification

    NASA Astrophysics Data System (ADS)

    Drbohlav, Jiri; Kocourek, Josef

    2018-05-01

    Dynamic interest in cycling transport brings the necessity to design safety cycling infrastructure. In las few years, couple of norms with safety elements have been designed and suggested for the cycling infrastructure. But these were not fully examined. The main parameter of suitable and fully functional transport infrastructure is the evaluation of its safety. Common evaluation of transport infrastructure safety is based on accident statistics. These statistics are suitable for motor vehicle transport but unsuitable for the cycling transport. Cycling infrastructure evaluation of safety is suitable for the traffic conflicts monitoring. The results of this method are fast, based on real traffic situations and can be applied on any traffic situations.

  7. Advances in the Dynallax solid-state dynamic parallax barrier autostereoscopic visualization display system.

    PubMed

    Peterka, Tom; Kooima, Robert L; Sandin, Daniel J; Johnson, Andrew; Leigh, Jason; DeFanti, Thomas A

    2008-01-01

    A solid-state dynamic parallax barrier autostereoscopic display mitigates some of the restrictions present in static barrier systems, such as fixed view-distance range, slow response to head movements, and fixed stereo operating mode. By dynamically varying barrier parameters in real time, viewers may move closer to the display and move faster laterally than with a static barrier system, and the display can switch between 3D and 2D modes by disabling the barrier on a per-pixel basis. Moreover, Dynallax can output four independent eye channels when two viewers are present, and both head-tracked viewers receive an independent pair of left-eye and right-eye perspective views based on their position in 3D space. The display device is constructed by using a dual-stacked LCD monitor where a dynamic barrier is rendered on the front display and a modulated virtual environment composed of two or four channels is rendered on the rear display. Dynallax was recently demonstrated in a small-scale head-tracked prototype system. This paper summarizes the concepts presented earlier, extends the discussion of various topics, and presents recent improvements to the system.

  8. Head-Up Displays and Attention Capture

    NASA Technical Reports Server (NTRS)

    Prinzel, Lawrence J., III; Risser, Matthew

    2004-01-01

    The primary role of head-up displays (HUDs) is to provide primary flight, navigation, and guidance information to the pilot in a forward field-of-view on a head-up transparent screen. Therefore, this theoretically allows for optimal control of an aircraft through the simultaneous scanning of both instrument data and the out-the-window scene. However, despite significant aviation safety benefits afforded by HUDs, a number of accidents have shown that their use does not come without costs. The human factors community has identified significant issues related to the pilot distribution of near and far domain attentional resources because of the compellingness of symbology elements on the HUD; a concern termed, attention or cognitive capture. The paper describes the phenomena of attention capture and presents a selected survey of the literature on the etiology and potential prescriptions.

  9. A new "Logicle" display method avoids deceptive effects of logarithmic scaling for low signals and compensated data.

    PubMed

    Parks, David R; Roederer, Mario; Moore, Wayne A

    2006-06-01

    In immunofluorescence measurements and most other flow cytometry applications, fluorescence signals of interest can range down to essentially zero. After fluorescence compensation, some cell populations will have low means and include events with negative data values. Logarithmic presentation has been very useful in providing informative displays of wide-ranging flow cytometry data, but it fails to adequately display cell populations with low means and high variances and, in particular, offers no way to include negative data values. This has led to a great deal of difficulty in interpreting and understanding flow cytometry data, has often resulted in incorrect delineation of cell populations, and has led many people to question the correctness of compensation computations that were, in fact, correct. We identified a set of criteria for creating data visualization methods that accommodate the scaling difficulties presented by flow cytometry data. On the basis of these, we developed a new data visualization method that provides important advantages over linear or logarithmic scaling for display of flow cytometry data, a scaling we refer to as "Logicle" scaling. Logicle functions represent a particular generalization of the hyperbolic sine function with one more adjustable parameter than linear or logarithmic functions. Finally, we developed methods for objectively and automatically selecting an appropriate value for this parameter. The Logicle display method provides more complete, appropriate, and readily interpretable representations of data that includes populations with low-to-zero means, including distributions resulting from fluorescence compensation procedures, than can be produced using either logarithmic or linear displays. The method includes a specific algorithm for evaluating actual data distributions and deriving parameters of the Logicle scaling function appropriate for optimal display of that data. It is critical to note that Logicle visualization does

  10. A photophoretic-trap volumetric display

    NASA Astrophysics Data System (ADS)

    Smalley, D. E.; Nygaard, E.; Squire, K.; van Wagoner, J.; Rasmussen, J.; Gneiting, S.; Qaderi, K.; Goodsell, J.; Rogers, W.; Lindsey, M.; Costner, K.; Monk, A.; Pearson, M.; Haymore, B.; Peatross, J.

    2018-01-01

    Free-space volumetric displays, or displays that create luminous image points in space, are the technology that most closely resembles the three-dimensional displays of popular fiction. Such displays are capable of producing images in ‘thin air’ that are visible from almost any direction and are not subject to clipping. Clipping restricts the utility of all three-dimensional displays that modulate light at a two-dimensional surface with an edge boundary; these include holographic displays, nanophotonic arrays, plasmonic displays, lenticular or lenslet displays and all technologies in which the light scattering surface and the image point are physically separate. Here we present a free-space volumetric display based on photophoretic optical trapping that produces full-colour graphics in free space with ten-micrometre image points using persistence of vision. This display works by first isolating a cellulose particle in a photophoretic trap created by spherical and astigmatic aberrations. The trap and particle are then scanned through a display volume while being illuminated with red, green and blue light. The result is a three-dimensional image in free space with a large colour gamut, fine detail and low apparent speckle. This platform, named the Optical Trap Display, is capable of producing image geometries that are currently unobtainable with holographic and light-field technologies, such as long-throw projections, tall sandtables and ‘wrap-around’ displays.

  11. Map display design

    NASA Technical Reports Server (NTRS)

    Aretz, Anthony J.

    1990-01-01

    This paper presents a cognitive model of a pilot's navigation task and describes an experiment comparing a visual momentum map display to the traditional track-up and north-up approaches. The data show the advantage to a track-up map is its congruence with the ego-centered forward view; however, the development of survey knowledge is hindered by the inconsistency of the rotating display. The stable alignment of a north-up map aids the acquisition of survey knowledge, but there is a cost associated with the mental rotation of the display to a track-up alignment for ego-centered tasks. The results also show that visual momentum can be used to reduce the mental rotation costs of a north-up display.

  12. 78 FR 39599 - Safety Zone; Fort Monroe Fireworks Display, Chesapeake Bay, Hampton, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    .... ACTION: Temporary Final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the... intended to restrict vessel traffic movement in the specified area in order to protect the life and... Federal holidays. FOR FURTHER INFORMATION CONTACT: If you have questions on this temporary rule, call or...

  13. Three-dimensional displays and stereo vision

    PubMed Central

    Westheimer, Gerald

    2011-01-01

    Procedures for three-dimensional image reconstruction that are based on the optical and neural apparatus of human stereoscopic vision have to be designed to work in conjunction with it. The principal methods of implementing stereo displays are described. Properties of the human visual system are outlined as they relate to depth discrimination capabilities and achieving optimal performance in stereo tasks. The concept of depth rendition is introduced to define the change in the parameters of three-dimensional configurations for cases in which the physical disposition of the stereo camera with respect to the viewed object differs from that of the observer's eyes. PMID:21490023

  14. Children's Control/Display Stereotypes.

    PubMed

    Hoffmann, Errol R; Chan, Alan H S; Tai, Judy P C

    2018-06-01

    Objective The aim of this study was to determine control/display stereotypes for children of a range of ages and development of these stereotypes with age. Background Little is known about control/display stereotypes for children of different ages and the way in which these stereotypes develop with age. This study is part of a program to determine the need to design differentially for these age groups. Method We tested four groups of children with various tasks (age groups 5 to 7, 8 to 10, 11 to 13, 14 to 16), with about 30 in each group. Examples of common tasks were opening a bottle, turning on taps, and allocating numbers to keypads. More complex tasks involved rotating a control to move a display in a requested direction. Results Tasks with which different age groups were familiar showed no effect of age group. Different control/display arrangements generally showed an increase in stereotype strength with age, with dependence on the form of the control/display arrangement. Two-dimensional arrangements, with the control on the same plane as the display, had higher stereotype strength than three-dimensional arrangements for all age groups, suggesting an effect of familiarity with controls and displays with increasing age. Conclusion Children's control/display stereotypes do not differ greatly from those of adults, and hence, design for children older than 5 years of age, for control/display stereotypes, can be the same as that for adult populations. Application When designing devices for children, the relationship between controls and displays can be as for adult populations, for which there are considerable experimental data.

  15. Panoramic projection avionics displays

    NASA Astrophysics Data System (ADS)

    Kalmanash, Michael H.

    2003-09-01

    Avionics projection displays are entering production in advanced tactical aircraft. Early adopters of this technology in the avionics community used projection displays to replace or upgrade earlier units incorporating direct-view CRT or AMLCD devices. Typical motivation for these upgrades were the alleviation of performance, cost and display device availability concerns. In these systems, the upgraded (projection) displays were one-for-one form / fit replacements for the earlier units. As projection technology has matured, this situation has begun to evolve. The Lockheed-Martin F-35 is the first program in which the cockpit has been specifically designed to take advantage of one of the more unique capabilities of rear projection display technology, namely the ability to replace multiple small screens with a single large conformal viewing surface in the form of a panoramic display. Other programs are expected to follow, since the panoramic formats enable increased mission effectiveness, reduced cost and greater information transfer to the pilot. Some of the advantages and technical challenges associated with panoramic projection displays for avionics applications are described below.

  16. Development of display design and command usage guidelines for Spacelab experiment computer applications

    NASA Technical Reports Server (NTRS)

    Dodson, D. W.; Shields, N. L., Jr.

    1979-01-01

    Individual Spacelab experiments are responsible for developing their CRT display formats and interactive command scenarios for payload crew monitoring and control of experiment operations via the Spacelab Data Display System (DDS). In order to enhance crew training and flight operations, it was important to establish some standardization of the crew/experiment interface among different experiments by providing standard methods and techniques for data presentation and experiment commanding via the DDS. In order to establish optimum usage guidelines for the Spacelab DDS, the capabilities and limitations of the hardware and Experiment Computer Operating System design had to be considered. Since the operating system software and hardware design had already been established, the Display and Command Usage Guidelines were constrained to the capabilities of the existing system design. Empirical evaluations were conducted on a DDS simulator to determine optimum operator/system interface utilization of the system capabilities. Display parameters such as information location, display density, data organization, status presentation and dynamic update effects were evaluated in terms of response times and error rates.

  17. Force-Balance Dynamic Display

    NASA Technical Reports Server (NTRS)

    Ferris, Alice T.; White, William C.

    1988-01-01

    Balance dynamic display unit (BDDU) is compact system conditioning six dynamic analog signals so they are monitored simultaneously in real time on single-trace oscilloscope. Typical BDDU oscilloscope display in scan mode shows each channel occupying one-sixth of total trace. System features two display modes usable with conventional, single-channel oscilloscope: multiplexed six-channel "bar-graph" format and single-channel display. Two-stage visual and audible limit alarm provided for each channel.

  18. 77 FR 16929 - Safety Zones; Fireworks Displays within the Fifth Coast Guard District

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-23

    ...; Chesapeake Bay, Chesapeake Beach, MD; Potomac River, Charles County, MD; Potomac River, Charles County, MD...'' N, longitude 076[deg]26'07.6'' W and Patuxent River, Solomons Island, MD, centered at approximate position latitude 38[deg]19'21'' N, longitude 076[deg]27'55'' W. All coordinates for these safety zones...

  19. Augmenting digital displays with computation

    NASA Astrophysics Data System (ADS)

    Liu, Jing

    As we inevitably step deeper and deeper into a world connected via the Internet, more and more information will be exchanged digitally. Displays are the interface between digital information and each individual. Naturally, one fundamental goal of displays is to reproduce information as realistically as possible since humans still care a lot about what happens in the real world. Human eyes are the receiving end of such information exchange; therefore it is impossible to study displays without studying the human visual system. In fact, the design of displays is rather closely coupled with what human eyes are capable of perceiving. For example, we are less interested in building displays that emit light in the invisible spectrum. This dissertation explores how we can augment displays with computation, which takes both display hardware and the human visual system into consideration. Four novel projects on display technologies are included in this dissertation: First, we propose a software-based approach to driving multiview autostereoscopic displays. Our display algorithm can dynamically assign views to hardware display zones based on multiple observers' current head positions, substantially reducing crosstalk and stereo inversion. Second, we present a dense projector array that creates a seamless 3D viewing experience for multiple viewers. We smoothly interpolate the set of viewer heights and distances on a per-vertex basis across the arrays field of view, reducing image distortion, crosstalk, and artifacts from tracking errors. Third, we propose a method for high dynamic range display calibration that takes into account the variation of the chrominance error over luminance. We propose a data structure for enabling efficient representation and querying of the calibration function, which also allows user-guided balancing between memory consumption and the amount of computation. Fourth, we present user studies that demonstrate that the ˜ 60 Hz critical flicker fusion

  20. Noise tolerant illumination optimization applied to display devices

    NASA Astrophysics Data System (ADS)

    Cassarly, William J.; Irving, Bruce

    2005-02-01

    Display devices have historically been designed through an iterative process using numerous hardware prototypes. This process is effective but the number of iterations is limited by the time and cost to make the prototypes. In recent years, virtual prototyping using illumination software modeling tools has replaced many of the hardware prototypes. Typically, the designer specifies the design parameters, builds the software model, predicts the performance using a Monte Carlo simulation, and uses the performance results to repeat this process until an acceptable design is obtained. What is highly desired, and now possible, is to use illumination optimization to automate the design process. Illumination optimization provides the ability to explore a wider range of design options while also providing improved performance. Since Monte Carlo simulations are often used to calculate the system performance but those predictions have statistical uncertainty, the use of noise tolerant optimization algorithms is important. The use of noise tolerant illumination optimization is demonstrated by considering display device designs that extract light using 2D paint patterns as well as 3D textured surfaces. A hybrid optimization approach that combines a mesh feedback optimization with a classical optimizer is demonstrated. Displays with LED sources and cold cathode fluorescent lamps are considered.

  1. 75 FR 51379 - Safety Zone; Celebrate Erie, Presque Isle Bay, Erie, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-20

    ... display. DATES: This rule is effective from 9:30 p.m. until 10:30 p.m. on August 22, 2010. ADDRESSES...: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on Presque Isle Bay... Presque Isle Bay in Erie, PA during the Celebrate Erie fireworks display, August 22, 2010. This temporary...

  2. 78 FR 30765 - Safety Zone; Bay Village Independence Day Fireworks, Lake Erie, Bay Village, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-23

    ...-AA00 Safety Zone; Bay Village Independence Day Fireworks, Lake Erie, Bay Village, OH AGENCY: Coast... zone on Lake Erie, Bay Village, OH. This safety zone is intended to restrict vessels from a portion of Lake Erie during the Bay Village Independence Day Fireworks display. This temporary safety zone is...

  3. 77 FR 39420 - Safety Zone; Bay Village Independence Day Fireworks, Lake Erie, Bay Village, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-03

    ...-AA00 Safety Zone; Bay Village Independence Day Fireworks, Lake Erie, Bay Village, OH AGENCY: Coast... zone on Lake Erie, Bay Village, OH. This safety zone is intended to restrict vessels from a portion of Lake Erie during the Bay Village Independence Day Fireworks display. This temporary safety zone is...

  4. Aberdeen polygons: computer displays of physiological profiles for intensive care.

    PubMed

    Green, C A; Logie, R H; Gilhooly, K J; Ross, D G; Ronald, A

    1996-03-01

    The clinician in an intensive therapy unit is presented regularly with a range of information about the current physiological state of the patients under care. This information typically comes from a variety of sources and in a variety of formats. A more integrated form of display incorporating several physiological parameters may be helpful therefore. Three experiments are reported that explored the potential use of analogue, polygon diagrams to display physiological data from patients undergoing intensive therapy. Experiment 1 demonstrated that information can be extracted readily from such diagrams comprising 8- or 10-sided polygons, but with an advantage for simpler polygons and for information displayed at the top of the diagram. Experiment 2 showed that colour coding removed these biases for simpler polygons and the top of the diagram, together with speeding the processing time. Experiment 3 used polygons displaying patterns of physiological data that were consistent with typical conditions observed in the intensive care unit. It was found that physicians can readily learn to recognize these patterns and to diagnose both the nature and severity of the patient's physiological state. These polygon diagrams appear to have some considerable potential for use in providing on-line summary information of a patient's physiological state.

  5. Operating room managerial decision-making on the day of surgery with and without computer recommendations and status displays.

    PubMed

    Dexter, Franklin; Willemsen-Dunlap, Ann; Lee, John D

    2007-08-01

    There are three basic types of decision aids to facilitate operating room (OR) management decision-making on the day of surgery. Decision makers can rely on passive status displays (e.g., big screens or whiteboards), active status displays (e.g., text pager notification), and/or command displays (e.g., text recommendations about what to do). Anesthesiologists, OR nurses, and housekeepers were given nine simulated scenarios (vignettes) involving multiple ORs to study their decision-making. Participants were randomized to one of four groups, all with an updated paper OR schedule: with/without command display and with/without passive status display. Participants making decisions without command displays performed no better than random chance in terms of increasing the predictability of work hours, reducing over-utilized OR time, and increasing OR efficiency. Status displays had no effect on these end-points, whereas command displays improved the quality of decisions. In the scenarios for which the command displays provided recommendations that adversely affected safety, participants appropriately ignored advice. Anesthesia providers and nursing staff made decisions that increased clinical work per unit time in each OR, even when doing so resulted in an increase in over-utilized OR time, higher staffing costs, unpredictable work hours, and/or mandatory overtime. Organizational culture and socialization during clinical training may be a cause. Command displays showed promise in mitigating this tendency. Additional investigations are in our companion paper.

  6. Polyplanar optical display electronics

    NASA Astrophysics Data System (ADS)

    DeSanto, Leonard; Biscardi, Cyrus

    1997-07-01

    The polyplanar optical display (POD) is a unique display screen which can be used with any projection source. The prototype ten inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a 100 milliwatt green solid- state laser at 532 nm as its light source. To produce real- time video, the laser light is being modulated by a digital light processing (DLP) chip manufactured by Texas Instruments. In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the digital micromirror device (DMD) circuit board is removed from the Texas Instruments DLP light engine assembly. Due to the compact architecture of the projection system within the display chassis, the DMD chip is operated remotely from the Texas Instruments circuit board. We discuss the operation of the DMD divorced from the light engine and the interfacing of the DMD board with various video formats including the format specific to the B-52 aircraft. A brief discussion of the electronics required to drive the laser is also presented.

  7. Design of a projection display screen with vanishing color shift for rear-projection HDTV

    NASA Astrophysics Data System (ADS)

    Liu, Xiu; Zhu, Jin-lin

    1996-09-01

    Using bi-convex cylinder lens with matrix structure, the transmissive projection display screen with high contrast and wider viewing angle has been widely used in large rear projection TV and video projectors, it obtained a inhere color shift and puzzled the designer of display screen for RGB projection tube in-line adjustment. Based on the method of light beam racing, the general software of designing projection display screen has been developed and the computer model of vanishing color shift for rear projection HDTV has bee completed. This paper discussed the practical designing method to vanish the defect of color shift and mentioned the relations between the primary optical parameters of display screen and relative geometry sizes of lens' surface. The distributions of optical gain to viewing angle and the influences on engineering design are briefly analyzed.

  8. Display of adenoregulin with a novel Pichia pastoris cell surface display system.

    PubMed

    Ren, Ren; Jiang, Zhengbing; Liu, Meiyun; Tao, Xinyi; Ma, Yushu; Wei, Dongzhi

    2007-02-01

    Two Pichia pastoris cell surface display vectors were constructed. The vectors consisted of the flocculation functional domain of Flo1p with its own secretion signal sequence or the alpha-factor secretion signal sequence, a polyhistidine (6xHis) tag for detection, an enterokinase recognition site, and the insertion sites for target proteins. Adenoregulin (ADR) is a 33-amino-acid antimicrobial peptide isolated from Phyllomedusa bicolor skin. The ADR was expressed and displayed on the Pichia pastoris KM71 cell surface with the system reported. The displayed recombinant ADR fusion protein was detected by fluorescence microscopy and confocal laser scanning microscopy (CLSM). The antimicrobial activity of the recombinant adenoregulin was detected after proteolytic cleavage of the fusion protein on cell surface. The validity of the Pichia pastoris cell surface display vectors was proved by the displayed ADR.

  9. 77 FR 35844 - Safety Zone; Olde Ellison Bay Days Fireworks Display, Ellison Bay, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ... of Proposed Rulemaking A. Regulatory History and Information The Coast Guard is issuing this... of any grant or loan recipients, and will not raise any novel legal or policy issues. The safety zone...

  10. XVD Image Display Program

    NASA Technical Reports Server (NTRS)

    Deen, Robert G.; Andres, Paul M.; Mortensen, Helen B.; Parizher, Vadim; McAuley, Myche; Bartholomew, Paul

    2009-01-01

    The XVD [X-Windows VICAR (video image communication and retrieval) Display] computer program offers an interactive display of VICAR and PDS (planetary data systems) images. It is designed to efficiently display multiple-GB images and runs on Solaris, Linux, or Mac OS X systems using X-Windows.

  11. A knowledge based application of the extended aircraft interrogation and display system

    NASA Technical Reports Server (NTRS)

    Glover, Richard D.; Larson, Richard R.

    1991-01-01

    A family of multiple-processor ground support test equipment was used to test digital flight-control systems on high-performance research aircraft. A unit recently built for the F-18 high alpha research vehicle project is the latest model in a series called the extended aircraft interrogation and display system. The primary feature emphasized monitors the aircraft MIL-STD-1553B data buses and provides real-time engineering units displays of flight-control parameters. A customized software package was developed to provide real-time data interpretation based on rules embodied in a highly structured knowledge database. The configuration of this extended aircraft interrogation and display system is briefly described, and the evolution of the rule based package and its application to failure modes and effects testing on the F-18 high alpha research vehicle is discussed.

  12. Message T-Shirts and School Safety

    ERIC Educational Resources Information Center

    Workman, Jane E.; Webb, Ashley L.; Freeburg, Beth Winfrey

    2011-01-01

    The purpose of this study was to investigate message T-shirts and school safety as rated by high school teachers (n = 47) and students (n = 275). Wearing message T-shirts displaying offensive statements/images may contribute to perceptions of a psychologically and/or physically unsafe school environment. Participants gave their impressions of 12…

  13. Multimission helicopter cockpit displays

    NASA Astrophysics Data System (ADS)

    Terry, William S.; Terry, Jody K.; Lovelace, Nancy D.

    1996-05-01

    A new operator display subsystem is being incorporated as part of the next generation United States Navy (USN) helicopter avionics system to be integrated into the multi-mission helicopter (MMH) that replaces both the SH-60B and the SH-60F in 2001. This subsystem exploits state-of-the-art technology for the display hardware, the display driver hardware, information presentation methodologies, and software architecture. Both of the existing SH-60 helicopter display systems are based on monochrome CRT technology; a key feature of the MMH cockpit is the integration of color AMLCD multifunction displays. The MMH program is one of the first military programs to use modified commercial AMLCD elements in a tactical aircraft. This paper presents the general configuration of the MMH cockpit and multifunction display subsystem and discusses the approach taken for presenting helicopter flight information to the pilots as well as presentation of mission sensor data for use by the copilot.

  14. 76 FR 38020 - Safety Zone; Bay Point Fireworks, Bay Point Marina; Marblehead, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-29

    ...-AA00 Safety Zone; Bay Point Fireworks, Bay Point Marina; Marblehead, OH AGENCY: Coast Guard, DHS... from portions of Lake Erie for the Bay Point Fireworks. This temporary safety zone is necessary to protect spectators and vessels from the hazards associated with fireworks displays. DATES: This regulation...

  15. Super Safety and Health Day at KSC

    NASA Technical Reports Server (NTRS)

    2000-01-01

    During Super Safety and Health Day at KSC, two employees were recognized for submitting winning entries in the theme and logo/poster contests. At left, Center Director Roy Bridges congratulates Dave Earhart with United Space Alliance (USA) for his winning logo; at right, Brig. Gen. Ronald D. Pettit congratulates David Koval with Space Gateway Support (SGS) for his winning theme, '''Safety and Health: A Working Relationship.''' Safety Day is a full day of NASA-sponsored, KSC and 45th Space Wing events involving a number of health and safety related activities: Displays, vendors, technical paper sessions, panel discussions, a keynote speaker, etc. The entire Center and Wing stand down to participate in the planned events. Safety Day is held annually to proactively increase awareness in safety and health among the government and contractor workforce population. The first guiding principle at KSC is '''Safety and Health First.''' KSC's number one goal is to '''Assure sound, safe and efficient practices and processes are in place for privatized/commercialized launch site processing.'''

  16. Polymer Dispersed Liquid Crystal Displays

    NASA Astrophysics Data System (ADS)

    Doane, J. William

    The following sections are included: * INTRODUCTION AND HISTORICAL DEVELOPMENT * PDLC MATERIALS PREPARATION * Polymerization induced phase separation (PIPS) * Thermally induced phase separation (TIPS) * Solvent induced phase separation (SIPS) * Encapsulation (NCAP) * RESPONSE VOLTAGE * Dielectric and resistive effects * Radial configuration * Bipolar configuration * Other director configurations * RESPONSE TIME * DISPLAY CONTRAST * Light scattering and index matching * Incorporation of dyes * Contrast measurements * PDLC DISPLAY DEVICES AND INNOVATIONS * Reflective direct view displays * Large-scale, flexible displays * Switchable windows * Projection displays * High definition spatial light modulator * Haze-free PDLC shutters: wide angle view displays * ENVIRONMENTAL STABILITY * ACKNOWLEDGEMENTS * REFERENCES

  17. Solid-state turn coordinator display

    NASA Technical Reports Server (NTRS)

    Meredith, B. D.; Crouch, R. K.; Kelly, W. L., IV

    1975-01-01

    A solid state turn coordinator display which employs light emitting diodes (LED's) as the display medium was developed to demonstrate the feasibility of such displays for aircraft applications. The input to the display is supplied by a fluidic inertial rate sensor used in an aircraft wing leveler system. The display is composed of the LED radial display face and the electronics necessary to address and drive the individual lines of LED's. Three levels of brightness are provided to compensate for the different amounts of ambient light present in the cockpit.

  18. Comparison on the Effects and Safety of Tualang Honey and Tribestan in Sperm Parameters, Erectile Function, and Hormonal Profiles among Oligospermic Males

    PubMed Central

    Ismail, Shaiful Bahari; Bakar, Mohd. Bustamanizan; Nik Hussain, Nik Hazlina; Sulaiman, Siti Amrah; Jaafar, Hasnan; Draman, Samsul; Ramli, Roszaman; Wan Yusoff, Wan Zahanim

    2014-01-01

    Introduction. This study aims to evaluate the effectiveness of Tualang honey on sperm parameters, erectile function, and hormonal and safety profiles. Methodology. A randomized control trial was done using Tualang honey (20 grams) and Tribestan (750 mg) over a period of 12 weeks. Sperm parameters including sperm concentration, motility, and morphology were analyzed and erectile function was assessed using IIEF-5 questionnaire. Hormonal profiles of testosterone, FSH, and LH were studied. The volunteers were randomized into two groups and the outcomes were analyzed using SPSS version 18. Results. A total of 66 participants were involved. A significant increment of mean sperm concentration (P < 0.001), motility (P = 0.015) and morphology (P = 0.008) was seen in Tualang honey group. In Tribestan group, a significant increment of mean sperm concentration (P = 0.007), and morphology (P = 0.009) was seen. No significant differences of sperm concentration, motility, and morphology were seen between Tualang honey and Tribestan group and similar results were also seen in erectile function and hormonal profile. All safety profiles were normal and no adverse event was reported. Conclusion. Tualang honey effect among oligospermic males was comparable with Tribestan in improving sperm concentration, motility, and morphology. The usage of Tualang honey was also safe with no reported adverse event. PMID:25505918

  19. System status display evaluation

    NASA Technical Reports Server (NTRS)

    Summers, Leland G.

    1988-01-01

    The System Status Display is an electronic display system which provides the crew with an enhanced capability for monitoring and managing the aircraft systems. A flight simulation in a fixed base cockpit simulator was used to evaluate alternative design concepts for this display system. The alternative concepts included pictorial versus alphanumeric text formats, multifunction versus dedicated controls, and integration of the procedures with the system status information versus paper checklists. Twelve pilots manually flew approach patterns with the different concepts. System malfunctions occurred which required the pilots to respond to the alert by reconfiguring the system. The pictorial display, the multifunction control interfaces collocated with the system display, and the procedures integrated with the status information all had shorter event processing times and lower subjective workloads.

  20. An analysis of electronic health record-related patient safety concerns

    PubMed Central

    Meeks, Derek W; Smith, Michael W; Taylor, Lesley; Sittig, Dean F; Scott, Jean M; Singh, Hardeep

    2014-01-01

    Objective A recent Institute of Medicine report called for attention to safety issues related to electronic health records (EHRs). We analyzed EHR-related safety concerns reported within a large, integrated healthcare system. Methods The Informatics Patient Safety Office of the Veterans Health Administration (VA) maintains a non-punitive, voluntary reporting system to collect and investigate EHR-related safety concerns (ie, adverse events, potential events, and near misses). We analyzed completed investigations using an eight-dimension sociotechnical conceptual model that accounted for both technical and non-technical dimensions of safety. Using the framework analysis approach to qualitative data, we identified emergent and recurring safety concerns common to multiple reports. Results We extracted 100 consecutive, unique, closed investigations between August 2009 and May 2013 from 344 reported incidents. Seventy-four involved unsafe technology and 25 involved unsafe use of technology. A majority (70%) involved two or more model dimensions. Most often, non-technical dimensions such as workflow, policies, and personnel interacted in a complex fashion with technical dimensions such as software/hardware, content, and user interface to produce safety concerns. Most (94%) safety concerns related to either unmet data-display needs in the EHR (ie, displayed information available to the end user failed to reduce uncertainty or led to increased potential for patient harm), software upgrades or modifications, data transmission between components of the EHR, or ‘hidden dependencies’ within the EHR. Discussion EHR-related safety concerns involving both unsafe technology and unsafe use of technology persist long after ‘go-live’ and despite the sophisticated EHR infrastructure represented in our data source. Currently, few healthcare institutions have reporting and analysis capabilities similar to the VA. Conclusions Because EHR-related safety concerns have complex

  1. Polyplanar optical display electronics

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    DeSanto, L.; Biscardi, C.

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. The prototype ten inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a 100 milliwatt green solid-state laser (10,000 hr. life) at 532 nm as its light source. To produce real-time video, the laser light is being modulated by amore » Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments. In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the Digital Micromirror Device (DMD{trademark}) circuit board is removed from the Texas Instruments DLP light engine assembly. Due to the compact architecture of the projection system within the display chassis, the DMD{trademark} chip is operated remotely from the Texas Instruments circuit board. The authors discuss the operation of the DMD{trademark} divorced from the light engine and the interfacing of the DMD{trademark} board with various video formats (CVBS, Y/C or S-video and RGB) including the format specific to the B-52 aircraft. A brief discussion of the electronics required to drive the laser is also presented.« less

  2. 77 FR 34798 - Safety Zone; USMMA Fireworks, Long Island Sound, Kings Point, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-12

    ... 1625-AA00 Safety Zone; USMMA Fireworks, Long Island Sound, Kings Point, NY AGENCY: Coast Guard, DHS... navigable waters of Long Island Sound in the vicinity of Kings Point, NY for a fireworks display. This... fireworks displays. This rule is intended to restrict all vessels from a portion of Long Island Sound before...

  3. Operator modeling in commerical aviation: Cognitive models, intelligent displays, and pilot's assistants

    NASA Technical Reports Server (NTRS)

    Govindaraj, T.; Mitchell, C. M.

    1994-01-01

    One of the goals of the National Aviation Safety/Automation program is to address the issue of human-centered automation in the cockpit. Human-centered automation is automation that, in the cockpit, enhances or assists the crew rather than replacing them. The Georgia Tech research program focused on this general theme, with emphasis on designing a computer-based pilot's assistant, intelligent (i.e, context-sensitive) displays, and an intelligent tutoring system for understanding and operating the autoflight system. In particular, the aids and displays were designed to enhance the crew's situational awareness of the current state of the automated flight systems and to assist the crew's situational awareness of the current state of the automated flight systems and to assist the crew in coordinating the autoflight system resources. The activities of this grant included: (1) an OFMspert to understand pilot navigation activities in a 727 class aircraft; (2) an extension of OFMspert to understand mode control in a glass cockpit, Georgia Tech Crew Activity Tracking System (GT-CATS); (3) the design of a training system to teach pilots about the vertical navigation portion of the flight management system -VNAV Tutor; and (4) a proof-of-concept display, using existing display technology, to facilitate mode awareness, particularly in situations in which controlled flight into terrain (CFIT) is a potential.

  4. State-of-the-art for large area high resolution gray scale and full color AC plasma flat panel displays

    NASA Technical Reports Server (NTRS)

    Stoller, Ray A.; Wedding, Donald K.; Friedman, Peter S.

    1993-01-01

    A development status evaluation is presented for gas plasma display technology, noting how tradeoffs among the parameters of size, resolution, speed, portability, color, and image quality can yield cost-effective solutions for medical imaging, CAD, teleconferencing, multimedia, and both civil and military applications. Attention is given to plasma-based large-area displays' suitability for radar, sonar, and IR, due to their lack of EM susceptibility. Both monochrome and color displays are available.

  5. 76 FR 33643 - Safety Zone; Nicole Cerrito Birthday Fireworks, Detroit River, Detroit, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-09

    ...-AA00 Safety Zone; Nicole Cerrito Birthday Fireworks, Detroit River, Detroit, MI AGENCY: Coast Guard... Detroit River during the Nicole Cerrito Birthday Fireworks. This temporary safety zone is necessary to... hazards associated with maritime fireworks displays. Under 5 U.S.C. 553(d)(3), the Coast Guard finds that...

  6. Training in quality and safety: the current landscape.

    PubMed

    Karasick, Andrew S; Nash, David B

    2015-01-01

    The current US health care environment requires and encourages the development and implementation of training programs focusing on quality improvement and patient safety. This article offers a new resource that details the basic characteristics of such physician-inclusive training programs. Specifically, program type, objectives, eligibility, cost, training length, and modality are aggregated and displayed to provide health care professionals with a new tool to facilitate individual education in the field of quality improvement and patient safety. © The Author(s) 2014.

  7. Sunlight readable avionics displays

    NASA Astrophysics Data System (ADS)

    Visinski, Joseph R.

    1998-09-01

    The theme of the Cockpit Displays V Conference of 'Custom versus Consumer -- Grade Displays in Defense Applications' reflects the Raytheon Systems Company field emission display (FED) development effort. Raytheon chose to license commercial FED technology and subsequently participate in a commercial industry 'FED Alliance' to insert this technology into commercial and avionics defense applications. The unaffordability of custom military displays makes them an unfeasible choice to build a business upon. The major differences between consumer FEDs and those adapted for military/avionics installations are: (1) high brightness for sunlight visibility; (2) extended environmental range; (3) high resolution; (4) wider dimming range for sunlight to NVIS operation; (5) extended gray scales; (6) lifetime product support well beyond two year consumer market life. The transition to defense applications is further being accomplished via industry/government partnerships as the DARPA Technology Reinvestment Project (TRP) and BAA 97-31. FEDs combine cathode ray tube (CRT) and matrix addressed flat panel display technology, parts, manufacturing, and test equipment, plus open systems interfaces into a new display.

  8. Rendering of HDR content on LDR displays: an objective approach

    NASA Astrophysics Data System (ADS)

    Krasula, Lukáš; Narwaria, Manish; Fliegel, Karel; Le Callet, Patrick

    2015-09-01

    Dynamic range compression (or tone mapping) of HDR content is an essential step towards rendering it on traditional LDR displays in a meaningful way. This is however non-trivial and one of the reasons is that tone mapping operators (TMOs) usually need content-specific parameters to achieve the said goal. While subjective TMO parameter adjustment is the most accurate, it may not be easily deployable in many practical applications. Its subjective nature can also influence the comparison of different operators. Thus, there is a need for objective TMO parameter selection to automate the rendering process. To that end, we investigate into a new objective method for TMO parameters optimization. Our method is based on quantification of contrast reversal and naturalness. As an important advantage, it does not require any prior knowledge about the input HDR image and works independently on the used TMO. Experimental results using a variety of HDR images and several popular TMOs demonstrate the value of our method in comparison to default TMO parameter settings.

  9. 75 FR 33506 - Safety Zones: Fireworks Displays in the Captain of the Port Portland Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-14

    ... Festival Fireworks Display, Portland OR: May 28, 2010 from 8:30 p.m. until 10:30 p.m. (2) Cedco Inc...) Oregon Food Bank Blues Festival Fireworks, Portland, OR: July 4, 2010 from 8:30 p.m. through 11:30 p.m... Waterfront Festival, Aberdeen, WA: July 4, 2010 from 9 p.m. through 11 p.m. (10) Arlington Chamber of...

  10. Display technologies for augmented reality

    NASA Astrophysics Data System (ADS)

    Lee, Byoungho; Lee, Seungjae; Jang, Changwon; Hong, Jong-Young; Li, Gang

    2018-02-01

    With the virtue of rapid progress in optics, sensors, and computer science, we are witnessing that commercial products or prototypes for augmented reality (AR) are penetrating into the consumer markets. AR is spotlighted as expected to provide much more immersive and realistic experience than ordinary displays. However, there are several barriers to be overcome for successful commercialization of AR. Here, we explore challenging and important topics for AR such as image combiners, enhancement of display performance, and focus cue reproduction. Image combiners are essential to integrate virtual images with real-world. Display performance (e.g. field of view and resolution) is important for more immersive experience and focus cue reproduction may mitigate visual fatigue caused by vergence-accommodation conflict. We also demonstrate emerging technologies to overcome these issues: index-matched anisotropic crystal lens (IMACL), retinal projection displays, and 3D display with focus cues. For image combiners, a novel optical element called IMACL provides relatively wide field of view. Retinal projection displays may enhance field of view and resolution of AR displays. Focus cues could be reconstructed via multi-layer displays and holographic displays. Experimental results of our prototypes are explained.

  11. KENNEDY SPACE CENTER, FLA. - Many vendors and organizations displayed their products during the Spaceport Super Safety and Health Day at KSC and Cape Canaveral Air Force Station, an annual event dedicated to reinforcing safe and healthful behaviors in the workforce. This scene is at Hangar S, CCAFS.

    NASA Image and Video Library

    2003-10-15

    KENNEDY SPACE CENTER, FLA. - Many vendors and organizations displayed their products during the Spaceport Super Safety and Health Day at KSC and Cape Canaveral Air Force Station, an annual event dedicated to reinforcing safe and healthful behaviors in the workforce. This scene is at Hangar S, CCAFS.

  12. Review of head-worn displays for the Next Generation Air Transportation System

    NASA Astrophysics Data System (ADS)

    Arthur, Jarvis (Trey) J.; Bailey, Randall E.; Williams, Steven P.; Prinzel, Lawrence J.; Shelton, Kevin J.; Jones, Denise R.; Houston, Vincent E.

    2017-05-01

    NASA Langley Research Center (LaRC) has conducted research in the area of helmet-mounted display (HMD)/head-worn display (HWD) over the past 30 years. Initially, NASA LaRC's research focused on military applications, but recently NASA has conducted a line of research in the area of HWD for commercial and business aircraft. This work revolved around numerous simulation experiments as well as flight tests to develop technology and data for industry and regulatory guidance. This paper summarizes the results of NASA's HMD/HWD research. Of note, the work tracks progress in wearable collimated optics, head tracking, latency reduction, and weight. The research lends credence to a small, sunglasses-type form factor of the HWD being acceptable to commercial pilots, and this goal is now becoming technologically feasible. The research further suggests that an HWD may serve as an "equivalent" head-up display (HUD) with safety, operational, and cost benefits. "HUD equivalence" appears to be the economic avenue by which HWDs can become mainstream on the commercial and business aircraft flight deck. If this happens, NASA's research suggests that additional operational benefits using the unique capabilities of the HWD can open up new operational paradigms.

  13. Next generation smart window display using transparent organic display and light blocking screen.

    PubMed

    Kim, Gyeong Woo; Lampande, Raju; Choe, Dong Cheol; Ko, Ik Jang; Park, Jin Hwan; Pode, Ramchandra; Kwon, Jang Hyuk

    2018-04-02

    Transparent organic light emitting diodes (TOLED) have widespread applications in the next-generation display devices particularly in the large size transparent window and interactive displays. Herein, we report high performance and stable attractive smart window displays using facile process. Advanced smart window display is realized by integrating the high performance light blocking screen and highly transparent white OLED panel. The full smart window display reveals a maximum transmittance as high as 64.2% at the wavelength of 600 nm and extremely good along with tunable ambient contrast ratio (171.94:1) compared to that of normal TOLED (4.54:1). Furthermore, the performance decisive light blocking screen has demonstrated an excellent optical and electrical characteristics such as i) high transmittance (85.56% at 562nm) at light-penetrating state, ii) superior absorbance (2.30 at 562nm) in light interrupting mode, iii) high optical contrast (85.50 at 562 nm), iv) high optical stability for more than 25,000 cycle of driving, v) fast switching time of 1.9 sec, and vi) low driving voltage of 1.7 V. The experimental results of smart window display are also validated using optical simulation. The proposed smart window display technology allows us to adjust the intensity of daylight entering the system quickly and conveniently.

  14. Formulation of electroclinic, ferroelectric and antiferroelectric liquid crystal mixtures suitable for display devices

    NASA Astrophysics Data System (ADS)

    Debnath, Asim; Goswami, Debarghya; Mandal, Pradip Kumar

    2018-04-01

    Most of the liquid crystal display (LCD) devices starting from simplest wrist watches or calculators to complex laptops or flat TV sets are based on nematics. Although a tremendous improvement in the quality of display as well as reduction of manufacturing cost has taken place over the years, there are many issues which the LC industry is trying hard to address. Ferroelectric liquid crystals (FLC) are of current interest in the LCD industry since among various other advantages FLC based displays have micro-second order switching compared to milli-second order switching in nematic based displays. To meet the market demand much effort has been made to optimize the physical parameters of FLCs, such as temperature range, spontaneous polarization (PS), helical pitch (p), switching time (τ), tilt angle (θ) and rotational viscosity (γ). Multicomponent mixtures are, therefore, formulated to optimize all the required properties for practical applications since no single FLC compound can satisfy the above requirements. To the best of our knowledge electroclinic, ferroelectric and antiferroelectric liquid crystal mixtures have been formulated first time by any Indian group which have properties suitable for FLC based display devices and at par with mixtures used in the industry.

  15. Modernizing engine displays

    NASA Technical Reports Server (NTRS)

    Schneider, E. T.; Enevoldson, E. K.

    1984-01-01

    The introduction of electronic fuel control to modern turbine engines has a number of advantages, which are related to an increase in engine performance and to a reduction or elimination of the problems associated with high angle of attack engine operation from the surface to 50,000 feet. If the appropriate engine display devices are available to the pilot, the fuel control system can provide a great amount of information. Some of the wealth of information available from modern fuel controls are discussed in this paper. The considered electronic engine control systems in their most recent forms are known as the Full Authority Digital Engine Control (FADEC) and the Digital Electronic Engine Control (DEEC). Attention is given to some details regarding the control systems, typical engine problems, the solution of problems with the aid of displays, engine displays in normal operation, an example display format, a multipage format, flight strategies, and hardware considerations.

  16. 33 CFR 165.171 - Safety Zones for fireworks displays held in Coast Guard Sector Northern New England Captain of...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....3Bangor 4th of July Fireworks • Event Type: Fireworks Display. • Sponsor: Bangor 4th of July Fireworks. • Date: July 4th, as specified in the USCG District 1 Local Notice to Mariners. • Time: 8:00 pm to 10:30...° 47′27″ N, 068° 46′31″ W (NAD 83). 7.4Bar Harbor 4th of July Fireworks • Event Type: Fireworks Display...

  17. Genetic parameter and breeding value estimation of donkeys' problem-focused coping styles.

    PubMed

    Navas González, Francisco Javier; Jordana Vidal, Jordi; León Jurado, José Manuel; Arando Arbulu, Ander; McLean, Amy Katherine; Delgado Bermejo, Juan Vicente

    2018-05-12

    Donkeys are recognized therapy or leisure-riding animals. Anecdotal evidence has suggested that more reactive donkeys or those more easily engaging flight mechanisms tend to be easier to train compared to those displaying the natural donkey behaviour of fight. This context brings together the need to quantify such traits and to genetically select donkeys displaying a neutral reaction during training, because of its implication with handler/rider safety and trainability. We analysed the scores for coping style traits from 300 Andalusian donkeys from 2013 to 2015. Three scales were applied to describe donkeys' response to 12 stimuli. Genetic parameters were estimated using multivariate models with year, sex, husbandry system and stimulus as fixed effects and age as a linear and quadratic covariable. Heritabilities were moderate, 0.18 ± 0.020 to 0.21 ± 0.021. Phenotypic correlations between intensity and mood/emotion or response type were negative and moderate (-0.21 and -0.25, respectively). Genetic correlations between the same variables were negative and moderately high (-0.46 and -0.53, respectively). Phenotypic and genetic correlations between mood/emotion and response type were positive and high (0.92 and 0.95, respectively). Breeding values enable selection methods that could lead to endangered breed preservation and genetically selecting donkeys for the uses that they may be most suitable. Copyright © 2018 Elsevier B.V. All rights reserved.

  18. Uncertainty in dual permeability model parameters for structured soils.

    PubMed

    Arora, B; Mohanty, B P; McGuire, J T

    2012-01-01

    Successful application of dual permeability models (DPM) to predict contaminant transport is contingent upon measured or inversely estimated soil hydraulic and solute transport parameters. The difficulty in unique identification of parameters for the additional macropore- and matrix-macropore interface regions, and knowledge about requisite experimental data for DPM has not been resolved to date. Therefore, this study quantifies uncertainty in dual permeability model parameters of experimental soil columns with different macropore distributions (single macropore, and low- and high-density multiple macropores). Uncertainty evaluation is conducted using adaptive Markov chain Monte Carlo (AMCMC) and conventional Metropolis-Hastings (MH) algorithms while assuming 10 out of 17 parameters to be uncertain or random. Results indicate that AMCMC resolves parameter correlations and exhibits fast convergence for all DPM parameters while MH displays large posterior correlations for various parameters. This study demonstrates that the choice of parameter sampling algorithms is paramount in obtaining unique DPM parameters when information on covariance structure is lacking, or else additional information on parameter correlations must be supplied to resolve the problem of equifinality of DPM parameters. This study also highlights the placement and significance of matrix-macropore interface in flow experiments of soil columns with different macropore densities. Histograms for certain soil hydraulic parameters display tri-modal characteristics implying that macropores are drained first followed by the interface region and then by pores of the matrix domain in drainage experiments. Results indicate that hydraulic properties and behavior of the matrix-macropore interface is not only a function of saturated hydraulic conductivity of the macroporematrix interface ( K sa ) and macropore tortuosity ( l f ) but also of other parameters of the matrix and macropore domains.

  19. Uncertainty in dual permeability model parameters for structured soils

    NASA Astrophysics Data System (ADS)

    Arora, B.; Mohanty, B. P.; McGuire, J. T.

    2012-01-01

    Successful application of dual permeability models (DPM) to predict contaminant transport is contingent upon measured or inversely estimated soil hydraulic and solute transport parameters. The difficulty in unique identification of parameters for the additional macropore- and matrix-macropore interface regions, and knowledge about requisite experimental data for DPM has not been resolved to date. Therefore, this study quantifies uncertainty in dual permeability model parameters of experimental soil columns with different macropore distributions (single macropore, and low- and high-density multiple macropores). Uncertainty evaluation is conducted using adaptive Markov chain Monte Carlo (AMCMC) and conventional Metropolis-Hastings (MH) algorithms while assuming 10 out of 17 parameters to be uncertain or random. Results indicate that AMCMC resolves parameter correlations and exhibits fast convergence for all DPM parameters while MH displays large posterior correlations for various parameters. This study demonstrates that the choice of parameter sampling algorithms is paramount in obtaining unique DPM parameters when information on covariance structure is lacking, or else additional information on parameter correlations must be supplied to resolve the problem of equifinality of DPM parameters. This study also highlights the placement and significance of matrix-macropore interface in flow experiments of soil columns with different macropore densities. Histograms for certain soil hydraulic parameters display tri-modal characteristics implying that macropores are drained first followed by the interface region and then by pores of the matrix domain in drainage experiments. Results indicate that hydraulic properties and behavior of the matrix-macropore interface is not only a function of saturated hydraulic conductivity of the macroporematrix interface (Ksa) and macropore tortuosity (lf) but also of other parameters of the matrix and macropore domains.

  20. Gaze-contingent displays: a review.

    PubMed

    Duchowski, Andrew T; Cournia, Nathan; Murphy, Hunter

    2004-12-01

    Gaze-contingent displays (GCDs) attempt to balance the amount of information displayed against the visual information processing capacity of the observer through real-time eye movement sensing. Based on the assumed knowledge of the instantaneous location of the observer's focus of attention, GCD content can be "tuned" through several display processing means. Screen-based displays alter pixel level information generally matching the resolvability of the human retina in an effort to maximize bandwidth. Model-based displays alter geometric-level primitives along similar goals. Attentive user interfaces (AUIs) manage object- level entities (e.g., windows, applications) depending on the assumed attentive state of the observer. Such real-time display manipulation is generally achieved through non-contact, unobtrusive tracking of the observer's eye movements. This paper briefly reviews past and present display techniques as well as emerging graphics and eye tracking technology for GCD development.

  1. Response terminated displays unload selective attention.

    PubMed

    Roper, Zachary J J; Vecera, Shaun P

    2013-01-01

    Perceptual load theory successfully replaced the early vs. late selection debate by appealing to adaptive control over the efficiency of selective attention. Early selection is observed unless perceptual load (p-Load) is sufficiently low to grant attentional "spill-over" to task-irrelevant stimuli. Many studies exploring load theory have used limited display durations that perhaps impose artificial limits on encoding processes. We extended the exposure duration in a classic p-Load task to alleviate temporal encoding demands that may otherwise tax mnemonic consolidation processes. If the load effect arises from perceptual demands alone, then freeing-up available mnemonic resources by extending the exposure duration should have little effect. The results of Experiment 1 falsify this prediction. We observed a reliable flanker effect under high p-Load, response-terminated displays. Next, we orthogonally manipulated exposure duration and task-relevance. Counter-intuitively, we found that the likelihood of observing the flanker effect under high p-Load resides with the duration of the task-relevant array, not the flanker itself. We propose that stimulus and encoding demands interact to produce the load effect. Our account clarifies how task parameters differentially impinge upon cognitive processes to produce attentional "spill-over" by appealing to visual short-term memory as an additional processing bottleneck when stimuli are briefly presented.

  2. Format and basic geometry of a perspective display of air traffic for the cockpit

    DOT National Transportation Integrated Search

    1991-06-01

    The design and implementation of a perspective display of air traffic for the cockpit is discussed. Parameters of the perspective are variable and interactive so that the appearance of the projected image can be widely varied. This approach makes all...

  3. A superior architecture of brightness enhancement for display backlighting

    NASA Astrophysics Data System (ADS)

    Dross, Oliver; Parkyn, William A.; Chaves, Julio; Falicoff, Waqidi; Miñano, Juan Carlos; Benitez, Pablo; Alvarez, Roberto

    2006-08-01

    Brightness enhancement of backlighting for displays is typically achieved via crossed micro prismatic films that are introduced between a backlight unit and a transmissive (LCD) display. Prismatic films let pass light only into a restricted angular range, while, in conjunction with other reflective elements below the backlight, all other light is recycled within the backlight unit, thereby increasing the backlight luminance. This design offers no free parameters to influence the resulting light distribution and suffers from insufficient stray light control. A novel strategy of light recycling is introduced, using a microlens array in conjunction with a hole array in a reflective surface, that can provide higher luminance, superior stray light control, and can be designed to meet almost any desired emission pattern. Similar strategies can be applied to mix light from different colored LEDs being mounted upside down to shine into a backlight unit.

  4. Skylab indicators (event timer) (secondary display) (four-digit metabolic display)

    NASA Technical Reports Server (NTRS)

    Tiberg, W.

    1971-01-01

    The effort expended in developing the following indicators is summarized: (1) event timer; (2) secondary display; and (3) 4 digit display (metabolic). The mechanical design, vibration analysis, and thermal analysis of all these units are identical, and descriptions pertain to all three units. All problems incurred during the program are discussed along with the recommendations, conclusions, and actions taken to rectify the situations.

  5. 33 CFR 165.1315 - Safety Zones: Fireworks displays in the Captain of the Port Portland Zone.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... One day in early May. (2) Portland Rose Festival Fireworks Display, Portland, OR: (i) Location. Waters...) Oregon Food Bank Blues Festival Fireworks, Portland, OR (i) Location. Waters on the Willamette River...) Splash Aberdeen Waterfront Festival, Aberdeen, WA (i) Location. All water of the Chehalis River extending...

  6. Safety on Earth From MARSS

    NASA Technical Reports Server (NTRS)

    2002-01-01

    ENSCO, Inc., developed the Meteorological and Atmospheric Real-time Safety Support (MARSS) system for real-time assessment of meteorological data displays and toxic material spills. MARSS also provides mock scenarios to guide preparations for emergencies involving meteorological hazards and toxic substances. Developed under a Small Business Innovation Research (SBIR) contract with Kennedy Space Center, MARSS was designed to measure how safe NASA and Air Force range safety personnel are while performing weather sensitive operations around launch pads. The system augments a ground operations safety plan that limits certain work operations to very specific weather conditions. It also provides toxic hazard prediction models to assist safety managers in planning for and reacting to releases of hazardous materials. MARSS can be used in agricultural, industrial, and scientific applications that require weather forecasts and predictions of toxic smoke movement. MARSS is also designed to protect urban areas, seaports, rail facilities, and airports from airborne releases of hazardous chemical substances. The system can integrate with local facility protection units and provide instant threat detection and assessment data that is reportable for local and national distribution.

  7. Display methods of electronic patient record screens: patient privacy concerns.

    PubMed

    Niimi, Yukari; Ota, Katsumasa

    2013-01-01

    To provide adequate care, medical professionals have to collect not only medical information but also information that may be related to private aspects of the patient's life. With patients' increasing awareness of information privacy, healthcare providers have to pay attention to the patients' right of privacy. This study aimed to clarify the requirements of the display method of electronic patient record (EPR) screens in consideration of both patients' information privacy concerns and health professionals' information needs. For this purpose, semi-structured group interviews were conducted of 78 medical professionals. They pointed out that partial concealment of information to meet patients' requests for privacy could result in challenges in (1) safety in healthcare, (2) information sharing, (3) collaboration, (4) hospital management, and (5) communication. They believed that EPRs should (1) meet the requirements of the therapeutic process, (2) have restricted access, (3) provide convenient access to necessary information, and (4) facilitate interprofessional collaboration. This study provides direction for the development of display methods that balance the sharing of vital information and protection of patient privacy.

  8. Advanced interactive display formats for terminal area traffic control

    NASA Technical Reports Server (NTRS)

    Grunwald, Arthur J.

    1995-01-01

    The basic design considerations for perspective Air Traffic Control displays are described. A software framework has been developed for manual viewing parameter setting (MVPS) in preparation for continued, ongoing developments on automated viewing parameter setting (AVPS) schemes. The MVPS system is based on indirect manipulation of the viewing parameters. Requests for changes in viewing parameter setting are entered manually by the operator by moving viewing parameter manipulation pointers on the screen. The motion of these pointers, which are an integral part of the 3-D scene, is limited to the boundaries of screen. This arrangement has been chosen, in order to preserve the correspondence between the new and the old viewing parameter setting, a feature which contributes to preventing spatial disorientation of the operator. For all viewing operations, e.g. rotation, translation and ranging, the actual change is executed automatically by the system, through gradual transitions with an exponentially damped, sinusoidal velocity profile, in this work referred to as 'slewing' motions. The slewing functions, which eliminate discontinuities in the viewing parameter changes, are designed primarily for enhancing the operator's impression that he, or she, is dealing with an actually existing physical system, rather than an abstract computer generated scene. Current, ongoing efforts deal with the development of automated viewing parameter setting schemes. These schemes employ an optimization strategy, aimed at identifying the best possible vantage point, from which the Air Traffic Control scene can be viewed, for a given traffic situation.

  9. LED instrument approach instruction display

    NASA Technical Reports Server (NTRS)

    Meredith, B. D.; Kelly, W. L., IV; Crouch, R. K.

    1979-01-01

    A display employing light emitting diodes (LED's) was developed to demonstrate the feasibility of such displays for presenting landing and navigation information to reduce the workload of general aviation pilots during IFR flight. The display consists of a paper tape reader, digital memory, control electronics, digital latches, and LED alphanumeric displays. A presentable digital countdown clock-timer is included as part of the system to provide a convenient means of monitoring time intervals for precise flight navigation. The system is a limited capability prototype assembled to test pilot reaction to such a device under simulated IFR operation. Pilot opinion indicates that the display is helpful in reducing the IFR pilots workload when used with a runway approach plate. However, the development of a compact, low power second generation display was recommended which could present several instructions simultaneously and provide information update capability. A microprocessor-based display could fulfill these requirements.

  10. Reduce volume of head-up display by image stitching

    NASA Astrophysics Data System (ADS)

    Chiu, Yi-Feng; Su, Guo-Dung J.

    2016-09-01

    Head-up Display (HUD) is a safety feature for automobile drivers. Although there have been some HUD systems in commercial product already, their images are too small to show assistance information. Another problem, the volume of HUD is too large. We proposed a HUD including micro-projectors, rear-projection screen, microlens array (MLA) and the light source is 28 mm x 14 mm realized a 200 mm x 100 mm image in 3 meters from drivers. We want to use the MLA to reduce the volume by virtual image stitching. We design the HUD's package dimensions is 12 cm x 12 cm x 9 cm. It is able to show speed, map-navigation and night vision information. We used Liquid Crystal Display (LCD) as our image source due to its brighter image output required and the minimum volume occupancy. The MLA is a multi aperture system. The proposed MLA consists of many optical channels each transmitting a segment of the whole field of view. The design of the system provides the stitching of the partial images, so that we can see the whole virtual image.

  11. Displays in space.

    PubMed

    Colford, Nicholas

    2002-04-01

    This chapter describes the human and environmental factors that dictate the way that displays must be designed for, and used in space. A brief history of the evolution of such display systems covers developments from the Mercury rockets to the International Space Station. c2002 Published by Elsevier Science B.V.

  12. Displaying Data As Movies

    NASA Technical Reports Server (NTRS)

    Moore, Judith G.

    1992-01-01

    NMSB Movie computer program displays large sets of data (more than million individual values). Presentation dynamic, rapidly displaying sequential image "frames" in main "movie" window. Any sequence of two-dimensional sets of data scaled between 0 and 255 (1-byte resolution) displayed as movie. Time- or slice-wise progression of data illustrated. Originally written to present data from three-dimensional ultrasonic scans of damaged aerospace composite materials, illustrates data acquired by thermal-analysis systems measuring rates of heating and cooling of various materials. Developed on Macintosh IIx computer with 8-bit color display adapter and 8 megabytes of memory using Symantec Corporation's Think C, version 4.0.

  13. 77 FR 48431 - Safety Zone for Fireworks Display, Pamlico and Tar Rivers; Washington, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ..., serious bodily harm, or property damage. Establishing a safety zone to control vessel movement around the..., to minimize litigation, eliminate ambiguity, and reduce burden. 10. Protection of Children We have analyzed this rule under Executive Order 13045, Protection of Children from Environmental Health Risks and...

  14. Displaying uncertainty: investigating the effects of display format and specificity.

    PubMed

    Bisantz, Ann M; Marsiglio, Stephanie Schinzing; Munch, Jessica

    2005-01-01

    We conducted four studies regarding the representation of probabilistic information. Experiments 1 through 3 compared performance on a simulated stock purchase task, in which information regarding stock profitability was probabilistic. Two variables were manipulated: display format for probabilistic information (blurred and colored icons, linguistic phrases, numeric expressions, and combinations) and specificity level (in which the number and size of discrete steps into which the probabilistic information was mapped differed). Results indicated few performance differences attributable to display format; however, performance did improve with greater specificity. Experiment 4, in which participants generated membership functions corresponding to three display formats, found a high degree of similarity in functions across formats and participants and a strong relationship between the shape of the membership function and the intended meaning of the representation. These results indicate that participants can successfully interpret nonnumeric representations of uncertainty and can use such representations in a manner similar to the way numeric expressions are used in a decision-making task. Actual or potential applications of this research include the use of graphical representations of uncertainty in systems such as command and control and situation displays.

  15. Optimization of the polyplanar optical display electronics for a monochrome B-52 display

    NASA Astrophysics Data System (ADS)

    DeSanto, Leonard

    1998-09-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. The prototype ten-inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a new 200 mW green solid-state laser (10,000 hr. life) at 532 nm as its light source. To produce real-time video, the laser light is being modulated by a Digital Light Processing (DLPTM) chip manufactured by Texas Instruments (TI). In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the Digital Micromirror Device (DMDTM) chip is operated remotely from the Texas Instruments circuit board. In order to achieve increased brightness a monochrome digitizing interface was investigated. The operation of the DMDTM divorced from the light engine and the interfacing of the DMDTM board with the RS-170 video format specific to the B-52 aircraft will be discussed, including the increased brightness of the monochrome digitizing interface. A brief description of the electronics required to drive the new 200 mW laser is also presented.

  16. Ribosome display: next-generation display technologies for production of antibodies in vitro.

    PubMed

    He, Mingyue; Khan, Farid

    2005-06-01

    Antibodies represent an important and growing class of biologic research reagents and biopharmaceutical products. They can be used as therapeutics in a variety of diseases. With the rapid expansion of proteomic studies and biomarker discovery, there is a need for the generation of highly specific binding reagents to study the vast number of proteins encoded by the genome. Display technologies provide powerful tools for obtaining antibodies. Aside from the preservation of natural antibody repertoires, they are capable of exploiting diversity by DNA recombination to create very large libraries for selection of novel molecules. In contrast to in vivo immunization processes, display technologies allow selection of antibodies under in vitro-defined selection condition(s), resulting in enrichment of antibodies with desired properties from large populations. In addition, in vitro selection enables the isolation of antibodies against difficult antigens including self-antigens, and this can be applied to the generation of human antibodies against human targets. Display technologies can also be combined with DNA mutagenesis for antibody evolution in vitro. Some methods are amenable to automation, permitting high-throughput generation of antibodies. Ribosome display is considered as representative of the next generation of display technologies since it overcomes the limitations of cell-based display methods by using a cell-free system, offering advantages of screening larger libraries and continuously expanding new diversity during selection. Production of display-derived antibodies can be achieved by choosing one of a variety of prokaryotic and eukaryotic cell-based expression systems. In the near future, cell-free protein synthesis may be developed as an alternative for large-scale generation of antibodies.

  17. Interactive color display for multispectral imagery using correlation clustering

    NASA Technical Reports Server (NTRS)

    Haskell, R. E. (Inventor)

    1979-01-01

    A method for processing multispectral data is provided, which permits an operator to make parameter level changes during the processing of the data. The system is directed to production of a color classification map on a video display in which a given color represents a localized region in multispectral feature space. Interactive controls permit an operator to alter the size and change the location of these regions, permitting the classification of such region to be changed from a broad to a narrow classification.

  18. 78 FR 76391 - Proposed Enhancements to the Motor Carrier Safety Measurement System (SMS) Public Web Site

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-17

    ...-0392] Proposed Enhancements to the Motor Carrier Safety Measurement System (SMS) Public Web Site AGENCY... proposed enhancements to the display of information on the Agency's Safety Measurement System (SMS) public Web site. On December 6, 2013, Advocates [[Page 76392

  19. Vibrotactile display for mobile applications based on dielectric elastomer stack actuators

    NASA Astrophysics Data System (ADS)

    Matysek, Marc; Lotz, Peter; Flittner, Klaus; Schlaak, Helmut F.

    2010-04-01

    Dielectric elastomer stack actuators (DESA) offer the possibility to build actuator arrays at very high density. The driving voltage can be defined by the film thickness, ranging from 80 μm down to 5 μm and driving field strength of 30 V/μm. In this paper we present the development of a vibrotactile display based on multilayer technology. The display is used to present several operating conditions of a machine in form of haptic information to a human finger. As an example the design of a mp3-player interface is introduced. To build up an intuitive and user friendly interface several aspects of human haptic perception have to be considered. Using the results of preliminary user tests the interface is designed and an appropriate actuator layout is derived. Controlling these actuators is important because there are many possibilities to present different information, e.g. by varying the driving parameters. A built demonstrator is used to verify the concept: a high recognition rate of more than 90% validates the concept. A characterization of mechanical and electrical parameters proofs the suitability of dielectric elastomer stack actuators for the use in mobile applications.

  20. Large-screen display industry: market and technology trends for direct view and projection displays

    NASA Astrophysics Data System (ADS)

    Castellano, Joseph A.; Mentley, David E.

    1996-03-01

    Large screen information displays are defined as dynamic electronic displays that can be viewed by more than one person and are at least 2-feet wide. These large area displays for public viewing provide convenience, entertainment, security, and efficiency to the viewers. There are numerous uses for large screen information displays including those in advertising, transportation, traffic control, conference room presentations, computer aided design, banking, and military command/control. A noticeable characteristic of the large screen display market is the interchangeability of display types. For any given application, the user can usually choose from at least three alternative technologies, and sometimes from many more. Some display types have features that make them suitable for specific applications due to temperature, brightness, power consumption, or other such characteristic. The overall worldwide unit consumption of large screen information displays of all types and for all applications (excluding consumer TV) will increase from 401,109 units in 1995 to 655,797 units in 2002. On a unit consumption basis, applications in business and education represent the largest share of unit consumption over this time period; in 1995, this application represented 69.7% of the total. The market (value of shipments) will grow from DOL3.1 billion in 1995 to DOL3.9 billion in 2002. The market will be dominated by front LCD projectors and LCD overhead projector plates.

  1. Three-dimensional display technologies

    PubMed Central

    Geng, Jason

    2014-01-01

    The physical world around us is three-dimensional (3D), yet traditional display devices can show only two-dimensional (2D) flat images that lack depth (i.e., the third dimension) information. This fundamental restriction greatly limits our ability to perceive and to understand the complexity of real-world objects. Nearly 50% of the capability of the human brain is devoted to processing visual information [Human Anatomy & Physiology (Pearson, 2012)]. Flat images and 2D displays do not harness the brain’s power effectively. With rapid advances in the electronics, optics, laser, and photonics fields, true 3D display technologies are making their way into the marketplace. 3D movies, 3D TV, 3D mobile devices, and 3D games have increasingly demanded true 3D display with no eyeglasses (autostereoscopic). Therefore, it would be very beneficial to readers of this journal to have a systematic review of state-of-the-art 3D display technologies. PMID:25530827

  2. Multimission helicopter information display technology

    NASA Astrophysics Data System (ADS)

    Terry, William S.

    1995-06-01

    A new Operator display subsystem is being incorporated as part of the next generation United States Navy (USN) helicopter avionics system to be integrated into the Multi-Mission Helicopter (MMH) which will replace both the SH-60B and the SH- 60F in 2001. This subsystem exploits state-of-the-art technology for the display hardware, the display driver hardware, information presentation methodologies, and software architecture. The technologies to be base technologies have evolved during the development period and the solution has been modified to include current elements including high resolution AMLCD color displays that are sunlight readable, highly reliable, and significantly lighter that CRT technology, as well as Reduced Instruction Set Computer (RISC) based high-performance display generators that have only recently become feasible to implement in a military aircraft. This paper describes the overall subsystem architecture, some detail on the individual elements along with supporting rationale, the manner in which the display subsystem provides the necessary tools to significantly enhance the performance of the weapon system through the vital Operator-System Interface. Also addressed is a summary of the evolution of design leading to the current approach to MMH Operator displays and display processing as well as the growth path that the MMH display subsystem will most likely follow as additional technology evolution occurs.

  3. A reconfigurable tactile display based on polymer MEMS technology

    NASA Astrophysics Data System (ADS)

    Wu, Xiaosong

    A tactile display provides information such as shape, texture, temperature, and hardness to a user. Ultimately, a tactile display could be used to recreate a virtual object that may be stored in a computer. However, such advanced displays are not yet widely available, primarily due to the lack of low cost, large area, compact actuator arrays that can stimulate the large numbers of receptors of the user and that can also meet the high requirements for user safety and comfort. This research focuses on the development of polymer microfabrication technologies for the realization of two major components of a pneumatic tactile display: a microactuator array and a complementary microvalve (control) array. In this work, the concept, fabrication, and characterization of a kinematically-stabilized polymeric microbubble actuator ("endoskeletal microbubble actuator") is presented. A systematic design and modeling procedure was carried out to generate an optimized geometry of the corrugated diaphragm to satisfy membrane deflection, force, and stability requirements set forth by the tactile display goals. A mass-manufacturable actuator has been fabricated using the approaches of lithography and micromolding. A prototype of a single endoskeletal bubble actuator with a diameter of 2.6mm has been fabricated and characterized. In addition, in order to further reduce the size and cost of the tactile display, a microvalve array can be integrated into the tactile display system to control the pneumatic fluid that actuates the microbubble actuator. A piezoelectrically-driven and hydraulically-amplified polymer microvalve has been designed, fabricated, and tested. An incompressible elastomer was used as a solid hydraulic medium to convert the small axial displacement of a piezoelectric actuator into a large valve head stroke while maintaining a large blocking force. The function of the microvalve as an on-off switch for a pneumatic microbubble tactile actuator has been demonstrated

  4. Fine-Tuning ADAS Algorithm Parameters for Optimizing Traffic ...

    EPA Pesticide Factsheets

    With the development of the Connected Vehicle technology that facilitates wirelessly communication among vehicles and road-side infrastructure, the Advanced Driver Assistance Systems (ADAS) can be adopted as an effective tool for accelerating traffic safety and mobility optimization at various highway facilities. To this end, the traffic management centers identify the optimal ADAS algorithm parameter set that enables the maximum improvement of the traffic safety and mobility performance, and broadcast the optimal parameter set wirelessly to individual ADAS-equipped vehicles. After adopting the optimal parameter set, the ADAS-equipped drivers become active agents in the traffic stream that work collectively and consistently to prevent traffic conflicts, lower the intensity of traffic disturbances, and suppress the development of traffic oscillations into heavy traffic jams. Successful implementation of this objective requires the analysis capability of capturing the impact of the ADAS on driving behaviors, and measuring traffic safety and mobility performance under the influence of the ADAS. To address this challenge, this research proposes a synthetic methodology that incorporates the ADAS-affected driving behavior modeling and state-of-the-art microscopic traffic flow modeling into a virtually simulated environment. Building on such an environment, the optimal ADAS algorithm parameter set is identified through an optimization programming framework to enable th

  5. Mobile visual communications and displays

    NASA Astrophysics Data System (ADS)

    Valliath, George T.

    2004-09-01

    The different types of mobile visual communication modes and the types of displays needed in cellular handsets are explored. The well-known 2-way video conferencing is only one of the possible modes. Some modes are already supported on current handsets while others need the arrival of advanced network capabilities to be supported. Displays for devices that support these visual communication modes need to deliver the required visual experience. Over the last 20 years the display has grown in size while the rest of the handset has shrunk. However, the display is still not large enough - the processor performance and network capabilities continue to outstrip the display ability. This makes the display a bottleneck. This paper will explore potential solutions to a small large image on a small handset.

  6. Optimization of the polyplanar optical display electronics for a monochrome B-52 display

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    DeSanto, L.

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. The prototype ten-inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a new 200 mW green solid-state laser (10,000 hr. life) at 532 nm as its light source. To produce real-time video, the laser light is being modulated by amore » Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments (TI). In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the Digital Micromirror Device (DMD{trademark}) chip is operated remotely from the Texas Instruments circuit board. In order to achieve increased brightness a monochrome digitizing interface was investigated. The operation of the DMD{trademark} divorced from the light engine and the interfacing of the DMD{trademark} board with the RS-170 video format specific to the B-52 aircraft will be discussed, including the increased brightness of the monochrome digitizing interface. A brief description of the electronics required to drive the new 200 mW laser is also presented.« less

  7. Influenza vaccines: Evaluation of the safety profile

    PubMed Central

    Trombetta, Claudia Maria; Gianchecchi, Elena; Montomoli, Emanuele

    2018-01-01

    ABSTRACT The safety of vaccines is a critical factor in maintaining public trust in national vaccination programs. Vaccines are recommended for children, adults and elderly subjects and have to meet higher safety standards, since they are administered to healthy subjects, mainly healthy children. Although vaccines are strictly monitored before authorization, the possibility of adverse events and/or rare adverse events cannot be totally eliminated. Two main types of influenza vaccines are currently available: parenteral inactivated influenza vaccines and intranasal live attenuated vaccines. Both display a good safety profile in adults and children. However, they can cause adverse events and/or rare adverse events, some of which are more prevalent in children, while others with a higher prevalence in adults. The aim of this review is to provide an overview of influenza vaccine safety according to target groups, vaccine types and production methods. PMID:29297746

  8. 78 FR 38582 - Safety Zones; Multiple Firework Displays in Captain of the Port, Puget Sound Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-27

    ... Holmes Harbor, Elliot Bay Pier 90, and Southeast of Alki Point Light (approx. 1500 yds.) for various... from coming too close to the fireworks display and the associated hazards. C. Discussion of the Final... Elliot Bay, Pier 90; and Tuxedo and Tennis Shoes Event on July 20, 2013, near Alki Point Light. All...

  9. Crosstalk in automultiscopic 3-D displays: blessing in disguise?

    NASA Astrophysics Data System (ADS)

    Jain, Ashish; Konrad, Janusz

    2007-02-01

    Most of 3-D displays suffer from interocular crosstalk, i.e., the perception of an unintended view in addition to intended one. The resulting "ghosting" at high-contrast object boundaries is objectionable and interferes with depth perception. In automultiscopic (no glasses, multiview) displays using microlenses or parallax barrier, the effect is compounded since several unintended views may be perceived at once. However, we recently discovered that crosstalk in automultiscopic displays can be also beneficial. Since spatial multiplexing of views in order to prepare a composite image for automultiscopic viewing involves sub-sampling, prior anti-alias filtering is required. To date, anti-alias filter design has ignored the presence of crosstalk in automultiscopic displays. In this paper, we propose a simple multiplexing model that takes crosstalk into account. Using this model we derive a mathematical expression for the spectrum of single view with crosstalk, and we show that it leads to reduced spectral aliasing compared to crosstalk-free case. We then propose a new criterion for the characterization of ideal anti-alias pre-filter. In the experimental part, we describe a simple method to measure optical crosstalk between views using digital camera. We use the measured crosstalk parameters to find the ideal frequency response of anti-alias filter and we design practical digital filters approximating this response. Having applied the designed filters to a number of multiview images prior to multiplexing, we conclude that, due to their increased bandwidth, the filters lead to visibly sharper 3-D images without increasing aliasing artifacts.

  10. Auditory display as feedback for a novel eye-tracking system for sterile operating room interaction.

    PubMed

    Black, David; Unger, Michael; Fischer, Nele; Kikinis, Ron; Hahn, Horst; Neumuth, Thomas; Glaser, Bernhard

    2018-01-01

    The growing number of technical systems in the operating room has increased attention on developing touchless interaction methods for sterile conditions. However, touchless interaction paradigms lack the tactile feedback found in common input devices such as mice and keyboards. We propose a novel touchless eye-tracking interaction system with auditory display as a feedback method for completing typical operating room tasks. Auditory display provides feedback concerning the selected input into the eye-tracking system as well as a confirmation of the system response. An eye-tracking system with a novel auditory display using both earcons and parameter-mapping sonification was developed to allow touchless interaction for six typical scrub nurse tasks. An evaluation with novice participants compared auditory display with visual display with respect to reaction time and a series of subjective measures. When using auditory display to substitute for the lost tactile feedback during eye-tracking interaction, participants exhibit reduced reaction time compared to using visual-only display. In addition, the auditory feedback led to lower subjective workload and higher usefulness and system acceptance ratings. Due to the absence of tactile feedback for eye-tracking and other touchless interaction methods, auditory display is shown to be a useful and necessary addition to new interaction concepts for the sterile operating room, reducing reaction times while improving subjective measures, including usefulness, user satisfaction, and cognitive workload.

  11. An assessment of advanced displays and controls technology applicable to future space transportation systems

    NASA Technical Reports Server (NTRS)

    Hatfield, Jack J.; Villarreal, Diana

    1990-01-01

    The topic of advanced display and control technology is addressed along with the major objectives of this technology, the current state of the art, major accomplishments, research programs and facilities, future trends, technology issues, space transportation systems applications and projected technology readiness for those applications. The holes that may exist between the technology needs of the transportation systems versus the research that is currently under way are addressed, and cultural changes that might facilitate the incorporation of these advanced technologies into future space transportation systems are recommended. Some of the objectives are to reduce life cycle costs, improve reliability and fault tolerance, use of standards for the incorporation of advancing technology, and reduction of weight, volume and power. Pilot workload can be reduced and the pilot's situational awareness can be improved, which would result in improved flight safety and operating efficiency. This could be accomplished through the use of integrated, electronic pictorial displays, consolidated controls, artificial intelligence, and human centered automation tools. The Orbiter Glass Cockpit Display is an example examined.

  12. Psychophysical Comparison Of A Video Display System To Film By Using Bone Fracture Images

    NASA Astrophysics Data System (ADS)

    Seeley, George W.; Stempski, Mark; Roehrig, Hans; Nudelman, Sol; Capp, M. P.

    1982-11-01

    This study investigated the possibility of using a video display system instead of film for radiological diagnosis. Also investigated were the relationships between characteristics of the system and the observer's accuracy level. Radiologists were used as observers. Thirty-six clinical bone fractures were separated into two matched sets of equal difficulty. The difficulty parameters and ratings were defined by a panel of expert bone radiologists at the Arizona Health Sciences Center, Radiology Department. These two sets of fracture images were then matched with verifiably normal images using parameters such as film type, angle of view, size, portion of anatomy, the film's density range, and the patient's age and sex. The two sets of images were then displayed, using a counterbalanced design, to each of the participating radiologists for diagnosis. Whenever a response was given to a video image, the radiologist used enhancement controls to "window in" on the grey levels of interest. During the TV phase, the radiologist was required to record the settings of the calibrated controls of the image enhancer during interpretation. At no time did any single radiologist see the same film in both modes. The study was designed so that a standard analysis of variance would show the effects of viewing mode (film vs TV), the effects due to stimulus set, and any interactions with observers. A signal detection analysis of observer performance was also performed. Results indicate that the TV display system is almost as good as the view box display; an average of only two more errors were made on the TV display. The difference between the systems has been traced to four observers who had poor accuracy on a small number of films viewed on the TV display. This information is now being correlated with the video system's signal-to-noise ratio (SNR), signal transfer function (STF), and resolution measurements, to obtain information on the basic display and enhancement requirements for a

  13. X-Windows Widget for Image Display

    NASA Technical Reports Server (NTRS)

    Deen, Robert G.

    2011-01-01

    XvicImage is a high-performance XWindows (Motif-compliant) user interface widget for displaying images. It handles all aspects of low-level image display. The fully Motif-compliant image display widget handles the following tasks: (1) Image display, including dithering as needed (2) Zoom (3) Pan (4) Stretch (contrast enhancement, via lookup table) (5) Display of single-band or color data (6) Display of non-byte data (ints, floats) (7) Pseudocolor display (8) Full overlay support (drawing graphics on image) (9) Mouse-based panning (10) Cursor handling, shaping, and planting (disconnecting cursor from mouse) (11) Support for all user interaction events (passed to application) (12) Background loading and display of images (doesn't freeze the GUI) (13) Tiling of images.

  14. 77 FR 64411 - Safety Zone; Cooper T. Smith Fireworks Event; Mobile River; Mobile, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-22

    ... 1625-AA00 Safety Zone; Cooper T. Smith Fireworks Event; Mobile River; Mobile, AL AGENCY: Coast Guard.... Smith Fireworks Event. Entry into, transiting or anchoring in this zone is prohibited to all vessels... safety hazards associated with a fireworks display. B. Basis and Purpose Cooper T. Smith Corp. has hired...

  15. Laser-driven polyplanar optic display

    NASA Astrophysics Data System (ADS)

    Veligdan, James T.; Beiser, Leo; Biscardi, Cyrus; Brewster, Calvin; DeSanto, Leonard

    1998-05-01

    The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. This display screen is 2 inches thick and has a matte-black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. The new display uses a 200 milliwatt green solid- state laser (532 nm) as its optical source. In order to produce real-time video, the laser light is being modulated by a Digital Light Processing (DLPTM) chip manufactured by Texas Instruments, Inc. A variable astigmatic focusing system is used to produce a stigmatic image on the viewing face of the POD. In addition to the optical design, we discuss the DLPTM chip, the opto-mechanical design and viewing angle characteristics.

  16. Collimated autostereoscopic displays for cockpit applications

    NASA Astrophysics Data System (ADS)

    Eichenlaub, Jesse B.

    1995-06-01

    The use of an autostereoscopic display (a display that produces stereoscopic images that the user can see without wearing special glasses) for cockpit applications is now under investigation at Wright Patterson Air Force Base. DTI reported on this display, built for testing in a simulator, at last year's conference. It is believed, based on testing performed at NASA's Langley Research Center, that collimating this type of display will accrue benefits to the user including a grater useful imaging volume and more accurate stereo perception. DTI has therefore investigated the feasibility of collimating an autostereoscopic display, and has experimentally demonstrated a proof of concept model of such a display. As in the case of conventional displays, a collimated autostereoscopic display utilizes an optical element located one focal length from the surface of the image forming device. The presence of this element must be taken into account when designing the optics used to create the autostereoscopic images. The major design issues associated with collimated 2D displays are also associated with collimated autostereoscopic displays.

  17. 78 FR 38200 - Safety Zones; Annual Independence Day Fireworks Displays, Skagway, Haines, and Wrangell, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-26

    ..., darkness punctuated by bright flashes of light, and burning debris has the potential to result in serious... enforcement of these safety zones will be of short duration, approximately three hours. Furthermore, vessels...

  18. Can Civility Norms Boost Positive Effects of Management Commitment to Safety?

    PubMed

    McGonagle, Alyssa K; Childress, Niambi M; Walsh, Benjamin M; Bauerle, Timothy J

    2016-07-03

    We proposed that civility norms would strengthen relationships between management commitment to safety and workers' safety motivation, safety behaviors, and injuries. Survey data were obtained from working adults in hazardous jobs-those for which physical labor is required and/or a realistic possibility of physical injury is present (N = 290). Results showed that management commitment positively related to workers' safety motivation, safety participation, and safety compliance, and negatively related to minor injuries. Furthermore, management commitment to safety displayed a stronger positive relationship with safety motivation and safety participation, and a stronger negative relationship with minor worker injuries when civility norms were high (versus low). The results confirm existing known relationships between management commitment to safety and worker safety motivation and behavior; furthermore, civility norms facilitate the relationships between management commitment to safety and various outcomes important to worker safety. In order to promote an optimally safe working environment, managers should demonstrate a commitment to worker safety and promote positive norms for interpersonal treatment between workers in their units.

  19. Conceptual design of industrial process displays.

    PubMed

    Pedersen, C R; Lind, M

    1999-11-01

    Today, process displays used in industry are often designed on the basis of piping and instrumentation diagrams without any method of ensuring that the needs of the operators are fulfilled. Therefore, a method for a systematic approach to the design of process displays is needed. This paper discusses aspects of process display design taking into account both the designer's and the operator's points of view. Three aspects are emphasized: the operator tasks, the display content and the display form. The distinction between these three aspects is the basis for proposing an outline for a display design method that matches the industrial practice of modular plant design and satisfies the needs of reusability of display design solutions. The main considerations in display design in the industry are to specify the operator's activities in detail, to extract the information the operators need from the plant design specification and documentation, and finally to present this information. The form of the display is selected from existing standardized display elements such as trend curves, mimic diagrams, ecological interfaces, etc. Further knowledge is required to invent new display elements. That is, knowledge about basic visual means of presenting information and how humans perceive and interpret these means and combinations. This knowledge is required in the systematic selection of graphical items for a given display content. The industrial part of the method is first illustrated in the paper by a simple example from a plant with batch processes. Later the method is applied to develop a supervisory display for a condenser system in a nuclear power plant. The differences between the continuous plant domain of power production and the batch processes from the example are analysed and broad categories of display types are proposed. The problems involved in specification and invention of a supervisory display are analysed and conclusions from these problems are made. It is

  20. Developing Intepretive Soil Education Displays.

    ERIC Educational Resources Information Center

    Hansmeyer, T. L.; Cooper, T. H.

    1993-01-01

    Describes several soil educational displays developed for park and nature center trails. Displays include full-scale soil monoliths displayed along the trails with explanations on why and how the soils are different, and micro-monoliths exhibiting the different soil types. (MDH)

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