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Sample records for head-up display hud

  1. High brightness MEMS mirror based head-up display (HUD) modules with wireless data streaming capability

    Science.gov (United States)

    Milanovic, Veljko; Kasturi, Abhishek; Hachtel, Volker

    2015-02-01

    A high brightness Head-Up Display (HUD) module was demonstrated with a fast, dual-axis MEMS mirror that displays vector images and text, utilizing its ~8kHz bandwidth on both axes. Two methodologies were evaluated: in one, the mirror steers a laser at wide angles of shelf lenses and a MEMS mirror in combination with a MEMS controller to enable precise movement of the mirror's X- and Y-axis. The MEMS controller offers both USB and wireless streaming capability and we utilize a library of functions on a host computer for creating content and controlling the mirror. Integration with smart phone applications is demonstrated, utilizing the mobile device both for content generation based on various messages or data, and for content streaming to the MEMS controller via Bluetooth interface. The display unit is highly resistant to vibrations and shock, and requires only ~1.5W to operate, even with content readable in sunlit outdoor conditions. The low power requirement is in part due to a vector graphics approach, allowing the efficient use of laser power, and also due to the use of a single, relatively high efficiency laser and simple optics.

  2. MEMS scanned laser head-up display

    Science.gov (United States)

    Freeman, Mark O.

    2011-03-01

    Head-up displays (HUD) in automobiles and other vehicles have been shown to significantly reduce accident rates by keeping the driver's eyes on the road. The requirements for automotive HUDs are quite demanding especially in terms of brightness, dimming range, supplied power, and size. Scanned laser display technology is particularly well-suited to this application since the lasers can be very efficiently relayed to the driver's eyes. Additionally, the lasers are only turned on where the light is needed in the image. This helps to provide the required brightness while minimizing power and avoiding a background glow that disturbs the see-through experience. Microvision has developed a couple of HUD architectures that are presented herein. One design uses an exit pupil expander and relay optics to produce a high quality virtual image for built-in systems where the image appears to float above the hood of the auto. A second design uses a patented see-through screen technology and pico projector to make automotive HUDs available to anyone with a projector. The presentation will go over the basic designs for the two types of HUD and discuss design tradeoffs.

  3. Improvement of Head-Up Display Standards. Volume 3. An Evaluation of Head-Up Display Safety.

    Science.gov (United States)

    1987-09-01

    result was the PERSEPOLIS display (21). These displays both make use of the fundamental relationship "I’. between ALPHA, GAMMA, and THETA and use air...designed to emphasize the unique relationship between THETA, GAMMA, and ALPHA. The Klopfstein and PERSEPOLIS HUDs, designed for transport airplanes made...CSF 21 H. Suisse, Head-Up Display System -- PERSEPOLIS Symbology, Dassault Report DGT-16433, September 1979 22 "A Word from the Navy," ALPA Head-Up

  4. 76 FR 31223 - Special Conditions: Bombardier Model BD-700-1A10 and BD-700-1A11 Airplanes, Head-up Display (HUD...

    Science.gov (United States)

    2011-05-31

    .... Per Type Certificate Data Sheet (TCDS) T00003NY, those aircraft models are known under the marketing....773 does not permit visual distortions and reflections that could interfere with the pilot's normal... airplanes, the use of HUD that display flight symbology, without a significant visual obscuration of the...

  5. Projection/Reflection Heads-up Display

    Data.gov (United States)

    National Aeronautics and Space Administration — To address the NASA need for an EVA information display device, Physical Optics Corporation (POC) proposes to develop a new Projection/Reflection Heads-up Display...

  6. A head-up display for mid-air drone recovery

    Science.gov (United States)

    Augustine, W. L.; Heft, E. L.; Bowen, T. E.; Newman, R. L.

    1978-01-01

    During mid-air retrieval of parachute packages, the absence of a natural horizon creates serious difficulties for the pilot of the recovery helicopter. A head-up display (HUD) was tested in an attempt to solve this problem. Both a roll-stabilized HUD and a no-roll (pitch only) HUD were tested. The results show that fewer missed passes occurred with the roll-stabilized HUD when the horizon was obscured. The pilots also reported that the workload was greatly reduced. Roll-stabilization was required to prevent vertigo when flying in the absence of a natural horizon. Any HUD intended for mid-air retrieval should display pitch, roll, sideslip, airspeed, and vertical velocity.

  7. Projection/Reflection Heads-up Display

    Data.gov (United States)

    National Aeronautics and Space Administration — To address the NASA need for an extravehicular activity (EVA) information display device, Physical Optics Corporation (POC) proposes to advance development of a new...

  8. Advances and trends of head-up and head-down display systems in automobiles

    Science.gov (United States)

    Betancur, J. Alejandro; Osorio-Gomez, Gilberto; Agudelo, J. David

    2014-06-01

    Currently, in the automotive industry the interaction between drivers and Augmented Reality (AR) systems is a subject of analysis, especially the identification of advantages and risks that this kind of interaction represents. Consequently, this paper attempts to put in evidence the potential applications of Head-Up (Display (HUD) and Head-Down Display (HDD) systems in automotive vehicles, showing applications and trends under study. In general, automotive advances related to AR devices suggest the partial integration of the HUD and HDD in automobiles; however, the right way to do it is still a moot point.

  9. Novel microscope-integrated stereoscopic heads-up display for intrasurgical optical coherence tomography.

    Science.gov (United States)

    Shen, Liangbo; Carrasco-Zevallos, Oscar; Keller, Brenton; Viehland, Christian; Waterman, Gar; Hahn, Paul S; Kuo, Anthony N; Toth, Cynthia A; Izatt, Joseph A

    2016-05-01

    Intra-operative optical coherence tomography (OCT) requires a display technology which allows surgeons to visualize OCT data without disrupting surgery. Previous research and commercial intrasurgical OCT systems have integrated heads-up display (HUD) systems into surgical microscopes to provide monoscopic viewing of OCT data through one microscope ocular. To take full advantage of our previously reported real-time volumetric microscope-integrated OCT (4D MIOCT) system, we describe a stereoscopic HUD which projects a stereo pair of OCT volume renderings into both oculars simultaneously. The stereoscopic HUD uses a novel optical design employing spatial multiplexing to project dual OCT volume renderings utilizing a single micro-display. The optical performance of the surgical microscope with the HUD was quantitatively characterized and the addition of the HUD was found not to substantially effect the resolution, field of view, or pincushion distortion of the operating microscope. In a pilot depth perception subject study, five ophthalmic surgeons completed a pre-set dexterity task with 50.0% (SD = 37.3%) higher success rate and in 35.0% (SD = 24.8%) less time on average with stereoscopic OCT vision compared to monoscopic OCT vision. Preliminary experience using the HUD in 40 vitreo-retinal human surgeries by five ophthalmic surgeons is reported, in which all surgeons reported that the HUD did not alter their normal view of surgery and that live surgical maneuvers were readily visible in displayed stereoscopic OCT volumes.

  10. Effect of background scene complexity and field dependence on the legibility of head-up displays for automotive applications.

    Science.gov (United States)

    Ward, N J; Parkes, A; Crone, P R

    1995-12-01

    This study examined the legibility of information presented on head-up displays (HUDs) for automotive application as a function of background scene complexity, the position of the HUD within field of view relative to the background scene, and the perceptual capacity of the perceiver. Groups of field-dependent and field-independent subjects viewed video footage from the perspective of following a lead car on an open road with low, moderate, and high scene complexity. Subjects were required to track the lead vehicle and identify HUD-presented targets of a specified orientation and specified changes in a HUD-presented speedometer. The results indicate that (a) HUD legibility deteriorated with increased visual complexity of the background scene; (b) positioning the HUD on the roadway reduced the effect of background scene complexity on HUD legibility; and (c) field-dependent subjects made fewer correct and more false positive target identifications than did field-independent subjects.

  11. Navigation-Linked Heads-Up Display in Intracranial Surgery: Early Experience.

    Science.gov (United States)

    Mascitelli, Justin R; Schlachter, Leslie; Chartrain, Alexander G; Oemke, Holly; Gilligan, Jeffrey; Costa, Anthony B; Shrivastava, Raj K; Bederson, Joshua B

    2017-10-10

    The use of intraoperative navigation during microscope cases can be limited when attention needs to be divided between the operative field and the navigation screens. Heads-up display (HUD), also referred to as augmented reality, permits visualization of navigation information during surgery workflow. To detail our initial experience with HUD. We retrospectively reviewed patients who underwent HUD-assisted surgery from April 2016 through April 2017. All lesions were assessed for accuracy and those from the latter half of the study were assessed for utility. Seventy-nine patients with 84 pathologies were included. Pathologies included aneurysms (14), arteriovenous malformations (6), cavernous malformations (5), intracranial stenosis (3), meningiomas (27), metastasis (4), craniopharygniomas (4), gliomas (4), schwannomas (3), epidermoid/dermoids (3), pituitary adenomas (2) hemangioblastoma (2), choroid plexus papilloma (1), lymphoma (1), osteoblastoma (1), clival chordoma (1), cerebrospinal fluid leak (1), abscess (1), and a cerebellopontine angle Teflon granuloma (1). Fifty-nine lesions were deep and 25 were superficial. Structures identified included the lesion (81), vessels (48), and nerves/brain tissue (31). Accuracy was deemed excellent (71.4%), good (20.2%), or poor (8.3%). Deep lesions were less likely to have excellent accuracy (P = .029). HUD was used during bed/head positioning (50.0%), skin incision (17.3%), craniotomy (23.1%), dural opening (26.9%), corticectomy (13.5%), arachnoid opening (36.5%), and intracranial drilling (13.5%). HUD was deactivated at some point during the surgery in 59.6% of cases. There were no complications related to HUD use. HUD can be safely used for a wide variety of vascular and oncologic intracranial pathologies and can be utilized during multiple stages of surgery.

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

    Science.gov (United States)

    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.

  13. Technical feasibility and safety of an intraoperative head-up display device during spine instrumentation.

    Science.gov (United States)

    Yoon, Jang W; Chen, Robert E; Han, Phillip K; Si, Phong; Freeman, William D; Pirris, Stephen M

    2017-09-01

    The primary aim of this study was to determine the safety and feasibility of capturing and streaming neuronavigation images onto a head-up display during spine instrumentation. Using a novel device, neuronavigation images were captured and transferred wirelessly via a password-encrypted network to the head-up display. At the end of the procedure, the surgeons completed a survey to gather their opinions of the system. Forty pedicle screws were placed using the head-up display. The average screw placement time was slightly shorter when the head-up display was used (4.13 min with vs. 4.86 min without). The post-procedure survey demonstrated that 79% of surgeon's responses were positive. A wearable head-up display can benefit current neuronavigation systems, but larger, outcomes-based trials are needed. Higher processing speed would allow streaming of higher resolution images. Along with an enlarged display, these may significantly improve utilization of this technology. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

  14. Broad-band green phosphor screens as a light source for head up displays in moving platforms

    Science.gov (United States)

    Silver, Jack; Withnall, Robert; Rose, John; Wilstead, Nicola; Fern, George; Bishton, Stephen; Klein, David; Rhodes, Bob; Barclay, Charles; Whitmarsh, John

    2005-06-01

    A broad-band green light source for a head-up display is presented. To our knowledge, this is the first report of a green phosphor screen being excited by a blue LED as a backlight for monochrome HUDs. The phosphor screen not only generates the green light but it acts as a diffuser to give a homogeneous illumination. A microlens array focuses the emissions from LED sources on to the diffusing screen eliminating halo effects from the individual LEDs. The purpose of using a green phosphor is to exploit the fact that the eye is sensitive to more shades of green than any other colour. In uses where there are elements of danger such as automobiles (in busy areas), vehicles on construction sites and military vehicles in war zones, green displays have obvious attractions. This paper presents a discussion of the green phosphors that can be used in green screen fabrication, the deposition of the phosphor powders on the screens, the influence of the thickness of the phosphor powder on the screen brightness. In addition, the factors that influence the CIE coordinates of the light emitted from the screen are considered. The importance of choosing the optimum LED emission wavelength along with the general construction of the HUD is discussed. The merits of using a green screen are compared to those when using full colour displays based on white phosphor screens in which yellow emitting phosphors are excited by blue LEDs. Heat management in these HUD devices is achieved by pulsing the LEDs and rastering rows within the LED array.

  15. Operational Problems Associated with Head-Up Displays during Instrument Flight.

    Science.gov (United States)

    1980-10-01

    Retrieval USAF DC-7 Bendix Microvision IMC Landing Aid FAA TABLE 1 OPERATIONAL HEAD-UP DISPLAYS IN CIVIL AND U. S. MILITARY SERVICE 26 for most of the...BIBLIOGRAPHY 1964 29 L. Collins, "Bendix Microvision ," Air Facts, 27, September 1964 30 T. Gold, Flight Control System, U. S. Patent No. 3,128,623, April...Lambert, "Head-Up Over the Hills," Flight International, 22 October 1964, pp. 709-713 35 C. H. Mattinson, "Formation Flying with Microvision ," U. S. Army

  16. Driving While Interacting With Google Glass: Investigating the Combined Effect of Head-Up Display and Hands-Free Input on Driving Safety and Multitask Performance.

    Science.gov (United States)

    Tippey, Kathryn G; Sivaraj, Elayaraj; Ferris, Thomas K

    2017-06-01

    This study evaluated the individual and combined effects of voice (vs. manual) input and head-up (vs. head-down) display in a driving and device interaction task. Advances in wearable technology offer new possibilities for in-vehicle interaction but also present new challenges for managing driver attention and regulating device usage in vehicles. This research investigated how driving performance is affected by interface characteristics of devices used for concurrent secondary tasks. A positive impact on driving performance was expected when devices included voice-to-text functionality (reducing demand for visual and manual resources) and a head-up display (HUD) (supporting greater visibility of the driving environment). Driver behavior and performance was compared in a texting-while-driving task set during a driving simulation. The texting task was completed with and without voice-to-text using a smartphone and with voice-to-text using Google Glass's HUD. Driving task performance degraded with the addition of the secondary texting task. However, voice-to-text input supported relatively better performance in both driving and texting tasks compared to using manual entry. HUD functionality further improved driving performance compared to conditions using a smartphone and often was not significantly worse than performance without the texting task. This study suggests that despite the performance costs of texting-while-driving, voice input methods improve performance over manual entry, and head-up displays may further extend those performance benefits. This study can inform designers and potential users of wearable technologies as well as policymakers tasked with regulating the use of these technologies while driving.

  17. A user study of auditory, head-up and multi-modal displays in vehicles.

    Science.gov (United States)

    Jakus, Grega; Dicke, Christina; Sodnik, Jaka

    2015-01-01

    This paper describes a user study on the interaction with an in-vehicle information system (IVIS). The motivation for conducting this research was to investigate the subjectively and objectively measured impact of using a single- or multi-modal IVIS while driving. A hierarchical, list-based menu was presented using a windshield projection (head-up display), auditory display and a combination of both interfaces. The users were asked to navigate a vehicle in a driving simulator and simultaneously perform a set of tasks of varying complexity. The experiment showed that the interaction with visual and audio-visual head-up displays is faster and more efficient than with the audio-only display. All the interfaces had a similar impact on the overall driving performance. There was no significant difference between the visual only and audio-visual displays in terms of their efficiency and safety; however, the majority of test subjects clearly preferred to use the multi-modal interface while driving. Copyright © 2014 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  18. Integration of Head-Up Display system in automotive industry: a generalized application

    Science.gov (United States)

    Betancur, J. Alejandro; Osorio, Gilberto; Mejía, Alejandro

    2013-06-01

    Throughout the development of the automotive industry, supporting activities related with driving has been material of analysis and experimentation, always seeking new ways to achieve greater safety for the driver and passengers. With the purpose of contributing to this topic, in order to contribute to this subject, this paper summarizes from past research experiences the use of Head-Up Display systems applied to the automobile industry, covering it from two main points of discussion: the first one, from a technical point of view, in which the main principles of optical design associated with a moderate-cost experimental set up are brought out; and the second one, an operational approach where an applied driving graphical interface is presented. Up to now, the results suggest that the experimental set up here discussed could be adaptable to any automobile vehicle, but it is needed further research and investment.

  19. Use of Highways in the Sky and a Virtual Pad for Landing Head Up Display Symbology to enable improved Helicopter Pilots Situation Awareness and Workload in Degraded Visual Conditions.

    Science.gov (United States)

    Stanton, Neville A; Plant, Katherine L; Roberts, Aaron P; Allison, Craig K

    2017-12-05

    Flight within degraded visual conditions is a great challenge to pilots of rotary-wing craft. Environmental cues typically used to guide interpretation of speed, location and approach can become obscured, forcing the pilots to rely on data available from in-cockpit instrumentation. To ease the task of flight during degraded visual conditions, pilots require easy access to flight critical information. The current study examined the effect of "Highways in the Sky" symbology and a conformal virtual pad for landing presented using a Head Up Display (HUD) on pilots' workload and situation awareness for both clear and degraded conditions across a series of simulated rotary-wing approach and landings. Results suggest that access to the HUD lead to significant improvements to pilots' situation awareness, especially within degraded visual conditions. Importantly access to the HUD facilitated pilot awareness in all conditions. Results are discussed in terms of future HUD development. Practitioner Summary This paper explores the use of a novel Heads Up Display, to facilitate rotary-wing pilots' situation awareness and workload for simulated flights in both clear and degraded visual conditions. Results suggest that access to HUD facilitated pilots' situation awareness, especially when flying in degraded conditions.

  20. Real-time Video-Streaming to Surgical Loupe Mounted Head-Up Display for Navigated Meningioma Resection.

    Science.gov (United States)

    Diaz, Roberto; Yoon, Jang; Chen, Robert; Quinones-Hinojosa, Alfredo; Wharen, Robert; Komotar, Ricardo

    2017-04-30

    Wearable technology interfaces with normal human movement and function, thereby enabling more efficient and adaptable use.We developed a wearable display system for use with intra-operative neuronavigation for brain tumor surgery. The Google glass head-up display system was adapted to surgical loupes with a video-streaming integrated hardware and software device for display of the Stealth S7 navigation screen. Phantom trials of surface ventriculostomy were performed. The device was utilized as an alternative display screen during cranial surgery. Image-guided brain tumor resection was accomplished using Google Glass head-up display of Stealth S7 navigation images. Visual display consists of navigation video-streaming over a wireless network. The integrated system developed for video-streaming permits video data display to the operating surgeon without requiring movement of the head away from the operative field. Google Glass head-up display can be used for intra-operative neuronavigation in the setting of intracranial tumor resection.

  1. Pilot Errors Involving Head-Up Displays (HUDs), Helmet-Mounted Displays (HMDs), and Night Vision Goggles (NVGs)

    Science.gov (United States)

    1992-01-01

    the ingredients of which are awareness of attitude, altitude, airspeed, and vertical velocic 7 . This workshop considered aircraft actitude awareness...maintain altitude in sufficient time to avoid having to eject. In at least two of these instances, the pilots were in IMC, and just maintaining actitude

  2. Analyzing Drivers' Attitude towards HUD System Using a Stated Preference Survey

    Directory of Open Access Journals (Sweden)

    Hongwei Guo

    2014-02-01

    Full Text Available It is very important for drivers to obtain driving information easily and efficiently. There are many advanced devices used for driving safety assistance. Of these assistance devices, the head-up display (HUD system can promote the reduction of driver's reaction time and improve spatial awareness. The drivers' attitude towards and preference for HUD system are crucial to design the functional framework and interface of HUD system. This study explored the relationships between drivers' attitude and HUD presentation image designs using stated preference data from questionnaire survey. The questionnaire included drivers' attitude towards the use of HUD and the preference for the information display zone and information display elements of the HUD. Contrastive analysis was adopted to examine the variations in drivers' attitude and preference for age and driving skills. According to the results, the participants have varying attitudes to HUD system, but most participants show relatively unified preference for the information display zone and information display elements. The results can also be used to customize a HUD presentation image which is in accordance with the drivers' feelings and preferences.

  3. Heads Up: Concussion in Youth Sports

    Medline Plus

    Full Text Available ... What's this? Submit What's this? Submit Button Concussion in Youth Sports Training course: This page has moved ... What's this? Submit What's this? Submit Button Connect with HEADS UP & CDC's Injury Center HEADS UP Resources ...

  4. Heads Up: Concussion in Youth Sports

    Medline Plus

    Full Text Available ... this? Submit Button Connect with HEADS UP & CDC's Injury Center HEADS UP Resources File Formats Help: How ... for Disease Control and Prevention , National Center for Injury Prevention and Control , Division of Unintentional Injury Prevention ...

  5. Heads Up to High School Sports

    Science.gov (United States)

    ... submit" value="Submit" /> HEADS UP to School Sports Recommend on Facebook Tweet Share Compartir To help ... organizations, developed the HEADS UP: Concussion in School Sports initiative and materials. Specific Concussion Information for... Coaches ...

  6. Three-dimensional system integration for HUD placement on a new tactical airlift platform: design eye point vs. HUD eye box with accommodation and perceptual implications

    Science.gov (United States)

    Harbour, Steven D.; Hudson, Jeffery A.; Zehner, Gregory F.

    2012-06-01

    The retrofitting of a cockpit with a Head-Up-Display (HUD) raises potential accommodation and perceptual issues for pilots that must be addressed. For maximum optical efficiency, the goal is to be able to place every pilot's eye into the HUD Eye Motion Box (EMB) given a seat adjustment range. Initially, the Eye Reference Point (ERP) of the EMB should theoretically be located on the aircraft's original cockpit Design Eye Point (DEP), but human postures vary, and HUD systems may not be optimally placed. In reality, there is a distribution of pilot eyes around the DEP (which is dominant eye dependent); therefore, this must be accounted for in order to obtain appropriate visibility of all of the symbology based on photonic characteristics of the HUD. Pilot size and postural variation need to be taken into consideration when positioning the HUD system to ensure proper vision of all HUD symbology in addition to meeting the basic physical accommodation requirements of the cockpit. The innovative process and data collection methods for maximizing accommodation and pilot perception on a new "tactical airlift" platform are discussed as well as the related neurocognitive factors and the effects of information display design on cognitive phenomena.

  7. Improvement of Head-Up Display Standards. Volume 1. Head-Up Display Design Guide. Appendix

    Science.gov (United States)

    1987-09-01

    LANDING, NASA CR-189, 1964 31 L. Collins, "Bendix Microvision ," AIR FACTS, September 1964 32 T. Gold, FLIGHT CONTROL SYSTEM, US Patent 3,128,623, April... Microvision ," US ARMY AVIATION DIGEST, December 1964, pp. 8-9 38 J. M. Naish, SYSTEM FOR PRESENTING STEERING INFORMATION DUR- ING VISUAL FLIGHT. PART III...PERSPECTIVE POLE-TRACK, SAAB TN-58, 1965 53 P. A. Noxon, " Microvision : A Universal All-Weather Landing, Station Keeping and Navigational System," JOURNAL OF

  8. Study and Development of an Integrated Head-Up Display.

    Science.gov (United States)

    1981-06-01

    11 III. WATER PROCESSING AND TESTING...................................... 23 1. Background...Board Fab. details 03608841 Power Strobe Schematic D3608843 Power Strobe Stitch Weld Details 03619030 Power Supplu , high-voltage, 0 & M drawing. D3619010

  9. Advanced methods for displays and remote control of robots.

    Science.gov (United States)

    Eliav, Ami; Lavie, Talia; Parmet, Yisrael; Stern, Helman; Edan, Yael

    2011-11-01

    An in-depth evaluation of the usability and situation awareness performance of different displays and destination controls of robots are presented. In two experiments we evaluate the way information is presented to the operator and assess different means for controlling the robot. Our study compares three types of displays: a "blocks" display, a HUD (head-up display), and a radar display, and two types of controls: touch screen and hand gestures. The HUD demonstrated better performance when compared to the blocks display and was perceived to have greater usability compared to the radar display. The HUD was also found to be more useful when the operation of the robot was more difficult, i.e., when using the hand-gesture method. The experiments also pointed to the importance of using a wide viewing angle to minimize distortion and for easier coping with the difficulties of locating objects in the field of view margins. The touch screen was found to be superior in terms of both objective performance and its perceived usability. No differences were found between the displays and the controllers in terms of situation awareness. This research sheds light on the preferred display type and controlling method for operating robots from a distance, making it easier to cope with the challenges of operating such systems. Copyright © 2011 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  10. Simulation Test of a Head-Worn Display with Ambient Vision Display for Unusual Attitude Recovery

    Science.gov (United States)

    Arthur, Jarvis (Trey) J., III; Nicholas, Stephanie N.; Shelton, Kevin J.; Ballard, Kathryn; Prinzel, Lawrence J., III; Ellis, Kyle E.; Bailey, Randall E.; Williams, Steven P.

    2017-01-01

    Head-Worn Displays (HWDs) are envisioned as a possible equivalent to a Head-Up Display (HUD) in commercial and general aviation. A simulation experiment was conducted to evaluate whether the HWD can provide an equivalent or better level of performance to a HUD in terms of unusual attitude recognition and recovery. A prototype HWD was tested with ambient vision capability which were varied (on/off) as an independent variable in the experiment testing for attitude awareness. The simulation experiment was conducted in two parts: 1) short unusual attitude recovery scenarios where the aircraft is placed in an unusual attitude and a single-pilot crew recovered the aircraft; and, 2) a two-pilot crew operating in a realistic flight environment with "off-nominal" events to induce unusual attitudes. The data showed few differences in unusual attitude recognition and recovery performance between the tested head-down, head-up, and head-worn display concepts. The presence and absence of ambient vision stimulation was inconclusive. The ergonomic influences of the head-worn display, necessary to implement the ambient vision experimentation, may have influenced the pilot ratings and acceptance of the concepts.

  11. Development Of HUD Combiner For Automotive Windshield Application

    Science.gov (United States)

    Hattori, Akimasa; Makita, Kensuke; Okabayashi, Shigeru

    1989-12-01

    The head-up display system (HUM) has been developed for the windshield of Nissan Motor's passenger car, '88 model of Silvia (240SX) and '89 model of Maxima. HUD consists of a projector with high brightness VFT and a combiner which is a light-selective reflective film applied on the surface of ' e windshield. The system provides nice display legibility of speed in a three-digit reap at the position more than one meter far from driver's eye even under the bright sunlight. In this report, we present the optical properties and manufacturing process of the advanced combiner. The combiner has to have high transmittance as well as high reflectance so that a driver can see both foreground object and display reading at the same time. The optical design for the combiner is based on the concepts: (a) Visible light transmittance has to be 70% or more in accordance with a legal requirement, and (b) taking both peak wavelengths of Vim' and sensitivity characteristics of human eyes into consideration, 530nm of wave length is chosen as a reflective light. The combiner consists of a dielectric thin layer of Ti02-Si02 system. Its basic structure is decided by simulation with matrix method of the resultant waves. The coating film is applied on the restricted area of the forth surface of laminated windshield by newly developed solgel printing process using a metal alkoxide solution with a relatively long storage life.

  12. HUD Homeownership Centers

    Data.gov (United States)

    Department of Housing and Urban Development — HUD Homeownership Centers (HOCs) insure single family Federal Housing Administration (FHA) mortgages and oversee the selling of HUD homes. FHA has four Homeownership...

  13. HUD Exchange Grantee Database

    Data.gov (United States)

    Department of Housing and Urban Development — The About Grantees section of the HUD Exchange brings up contact information, reports, award, jurisdiction, and location data for organizations that receive HUD...

  14. Patient Specific Modeling of Head-Up Tilt

    DEFF Research Database (Denmark)

    Williams, Nakeya; Wright, Andrew; Mehlsen, Jesper

    2014-01-01

    Short term cardiovascular responses to head-up tilt (HUT) experiments involve complex cardiovascular regulation in order to maintain blood pressure at homeostatic levels. This manuscript presents a patient specific compartmental model developed to predict dynamic changes in heart rate and arterial...

  15. The impact of gravity during head-up tilt

    DEFF Research Database (Denmark)

    Ottesen, Johnny T.; Olufsen, Mette; Smith, Brittany

    The impact of gravity during head-up tilt, a test often used in the clinic to diagnose patients who suffer from dizziness or frequent episodes of syncope, is not well described. This study uses mathematical modeling to analyze experimental blood pressure data measured at the level of the aorta...

  16. The impact of gravity during head-up tilt

    DEFF Research Database (Denmark)

    Olufsen, Mette; Smith, Brittany; Mehlsen, Jesper

    2011-01-01

    The impact of gravity during head-up tilt, a test often used in the clinic to diagnose patients who suffer from dizziness or frequent episodes of syncope, is not well described. This study uses mathematical modeling to analyze experimental blood pressure data measured at the level of the aorta...

  17. Attention Factors Associated With Head-Up Display and Helmet-Mounted Display Systems

    Science.gov (United States)

    1993-01-01

    processes. (Friedman, Polson, & Dafoe , 1988, p. 61) In one test of their hypotheses, Friedman et al. (1988) had right-handed men perform a verbal memory...Experimental Psychology: Human Perception and Performance, 7, 1031-1058. Friedman, A., Polson, M. C., & Dafoe , C. G. (1988). Dividing attention between the

  18. Research on Heads Up and Helmet Mounted Symbology

    Science.gov (United States)

    2000-03-30

    examined the difference in the use ofHUDs versus HDDs across different visibility levels. As pilots carne in for an approach to land under different...or the bottom right comer . If the cue appeared on the runway it filled either the top left or the top right box. The results showed that subjects...this case, observers respond to dots of the carne colour more slowly, on average by about 30 ms. The meaning of this reversal is unclear. Discussion

  19. HUD GIS Boundary Files

    Data.gov (United States)

    Department of Housing and Urban Development — The HUD GIS Boundary Files are intended to supplement boundary files available from the U.S. Census Bureau. The files are for community planners interested in...

  20. HUD's Local Office Directory

    Data.gov (United States)

    Department of Housing and Urban Development — HUD is organized in 10 Regions. Each Region is managed by a Regional Administrator, who also oversees the Regional Office. Each Field Office within a Region is...

  1. HUD TRM Report

    Data.gov (United States)

    Department of Housing and Urban Development — HUD uses certain systems and software to conduct daily business. It is important for our project managers and contractors to know the different platforms and...

  2. Displays

    OpenAIRE

    Schauer, A.

    1983-01-01

    A short review is given on new display technologies such as plasma, liquid crystals, light emitting diodes, electroluminescence and electrochromism. It is stated that thin or thick film or hybrid techniques are essential for all the different types of display. Comparing the performance data of displays the advantages, disadvantages, appropriate applications and future developments are described. Finally the display market and its growth are discussed briefly.

  3. Effects of Airport Tower Controller Decision Support Tool on Controllers Head-Up Time

    Science.gov (United States)

    Hayashi, Miwa; Cruz Lopez, Jose M.

    2013-01-01

    Despite that aircraft positions and movements can be easily monitored on the radar displays at major airports nowadays, it is still important for the air traffic control tower (ATCT) controllers to look outside the window as much as possible to assure safe operations of traffic management. The present paper investigates whether an introduction of the NASA's proposed Spot and Runway Departure Advisor (SARDA), a decision support tool for the ATCT controller, would increase or decrease the controllers' head-up time. SARDA provides the controller departure-release schedule advisories, i.e., when to release each departure aircraft in order to minimize individual aircraft's fuel consumption on taxiways and simultaneously maximize the overall runway throughput. The SARDA advisories were presented on electronic flight strips (EFS). To investigate effects on the head-up time, a human-in-the-loop simulation experiment with two retired ATCT controller participants was conducted in a high-fidelity ATCT cab simulator with 360-degree computer-generated out-the-window view. Each controller participant wore a wearable video camera on a side of their head with the camera facing forward. The video data were later used to calculate their line of sight at each moment and eventually identify their head-up times. Four sessions were run with the SARDA advisories, and four sessions were run without (baseline). Traffic-load levels were varied in each session. The same set of user interface - EFS and the radar displays - were used in both the advisory and baseline sessions to make them directly comparable. The paper reports the findings and discusses their implications.

  4. Heads Up! Play it Safe When it Comes to Concussions

    Centers for Disease Control (CDC) Podcasts

    2007-05-21

    As many as 3.8 million sports- and recreation-related concussions are estimated to occur in the United States each year. This podcast is a radio interview with CDC's Dr. Julie Gilchrist on the newly available “Heads Up: Concussion in Youth Sports" tool kit, which was developed to provide information to coaches, parents, and athletes involved in youth sports on preventing, recognizing, and responding to a concussion.  Created: 5/21/2007 by National Center for Injury Prevention and Control, Division of Injury Response.   Date Released: 10/31/2007.

  5. Postural tachycardia syndrome with asystole on head-up tilt.

    Science.gov (United States)

    Alshekhlee, Amer; Guerch, Meziane; Ridha, Faisal; Mcneeley, Kevin; Chelimsky, Thomas C

    2008-02-01

    Enhanced sympathetic activity causes an exaggerated heart rate response to standing in the postural tachycardia syndrome (POTS). All patients describe symptoms of orthostatic intolerance such as dizziness, blurred vision, shortness of breath, palpitations, tremulousness, chest discomfort, headache, lightheadedness and nausea, but only one third suffer loss of consciousness. We report four patients with POTS, who had long ventricular pauses (i.e. asystole) and syncope during head-up tilt test. This suggests that a subset of patients with POTS can have a surge in parasympathetic outflow that precedes vasovagal syncope.

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

    Science.gov (United States)

    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.

  7. Effects of three helmet-mounted display symbologies on unusual attitude recognition and recovery.

    Science.gov (United States)

    Ercoline, William R; Self, Brian P; Matthews, Roger S J

    2002-11-01

    Helmet-mounted displays (HMDs) allow pilots to view aircraft instrument information while looking to the side, away from the aircraft centerline axis. In that situation, pilots may lose attitude awareness and thus develop spatial disorientation. A secondary concern is the possible effects of visual conflict between the apparent motion of traditional, nose-referenced flight symbology and the off-axis view of the outside world. Alternative symbologies will provide improved attitude awareness for HMDs when compared with the conventional inside-out symbology now used with head-up displays (HUDs), if the HUD symbology is used on a HMD. The 9 pilots were presented 48 randomly arranged unusual attitude conditions on a HMD. The three symbologies included: 1) the inside-out representation now used with fixed HUDs, which features a moving horizon and pitch ladder; 2) an outside-in display that depicts a moving aircraft relative to a fixed horizon; and 3) an inside-out novel symbology termed the grapefruit' display (GD). The background scene contained a mix of either a front view orientation or a side view one. Conditions were randomized within and across subjects. Subjective preferences were collected after the completion of all tasks. Analysis of variance repeated measures design revealed that stick input for the GD was significantly faster with fewer roll reversal errors than either of the other two. The time to recover to straight and level was significantly shorter for the front view orientation than the side view. Of the nine pilots, eight preferred the GD symbology as a method of presenting attitude information on the HMD. Results suggest the current HUD symbology is not the best way of displaying attitude information on the HMD. Given the conditions of this study, the best way of presenting the pilot with attitude information on the HMD is with the GD symbology.

  8. A Cardiovascular Mathematical Model of Graded Head-Up Tilt

    Science.gov (United States)

    Lim, Einly; Chan, Gregory S. H.; Dokos, Socrates; Ng, Siew C.; Latif, Lydia A.; Vandenberghe, Stijn; Karunanithi, Mohan; Lovell, Nigel H.

    2013-01-01

    A lumped parameter model of the cardiovascular system has been developed and optimized using experimental data obtained from 13 healthy subjects during graded head-up tilt (HUT) from the supine position to . The model includes descriptions of the left and right heart, direct ventricular interaction through the septum and pericardium, the systemic and pulmonary circulations, nonlinear pressure volume relationship of the lower body compartment, arterial and cardiopulmonary baroreceptors, as well as autoregulatory mechanisms. A number of important features, including the separate effects of arterial and cardiopulmonary baroreflexes, and autoregulation in the lower body, as well as diastolic ventricular interaction through the pericardium have been included and tested for their significance. Furthermore, the individual effect of parameter associated with heart failure, including LV and RV contractility, baseline systemic vascular resistance, pulmonary vascular resistance, total blood volume, LV diastolic stiffness and reflex gain on HUT response have also been investigated. Our fitted model compares favorably with our experimental measurements and published literature at a range of tilt angles, in terms of both global and regional hemodynamic variables. Compared to the normal condition, a simulated congestive heart failure condition produced a blunted response to HUT with regards to the percentage changes in cardiac output, stroke volume, end diastolic volume and effector response (i.e., heart contractility, venous unstressed volume, systemic vascular resistance and heart rate) with progressive tilting. PMID:24204817

  9. A cardiovascular mathematical model of graded head-up tilt.

    Directory of Open Access Journals (Sweden)

    Einly Lim

    Full Text Available A lumped parameter model of the cardiovascular system has been developed and optimized using experimental data obtained from 13 healthy subjects during graded head-up tilt (HUT from the supine position to [Formula: see text]. The model includes descriptions of the left and right heart, direct ventricular interaction through the septum and pericardium, the systemic and pulmonary circulations, nonlinear pressure volume relationship of the lower body compartment, arterial and cardiopulmonary baroreceptors, as well as autoregulatory mechanisms. A number of important features, including the separate effects of arterial and cardiopulmonary baroreflexes, and autoregulation in the lower body, as well as diastolic ventricular interaction through the pericardium have been included and tested for their significance. Furthermore, the individual effect of parameter associated with heart failure, including LV and RV contractility, baseline systemic vascular resistance, pulmonary vascular resistance, total blood volume, LV diastolic stiffness and reflex gain on HUT response have also been investigated. Our fitted model compares favorably with our experimental measurements and published literature at a range of tilt angles, in terms of both global and regional hemodynamic variables. Compared to the normal condition, a simulated congestive heart failure condition produced a blunted response to HUT with regards to the percentage changes in cardiac output, stroke volume, end diastolic volume and effector response (i.e., heart contractility, venous unstressed volume, systemic vascular resistance and heart rate with progressive tilting.

  10. Assessment of cardiovascular regulation during head-up tilt and suspension in swimmers.

    Science.gov (United States)

    Ifuku, Hirotoshi; Shiraishi, Yumiko

    2004-01-01

    The purpose of the present study was to compare cardiovascular responses in competitive swimmers with those in track and field (T and F) athletes during head-up tilt with engagement of the antigravity muscles in the lower extremities and during passive head-up suspension without the engagement of the antigravity muscles. Blood pressure and heart rate during head-up tilt were compared among T and F athletes (N = 11), competitive swimmers (N = 15), and untrained subjects (N = 11). Moreover, stroke volume, cardiac output, and total peripheral resistance during head-up tilt and head-up suspension were also measured in T and F athletes and competitive swimmers. The heart rate increased significantly in all subject groups during head-up tilt; however, the MBP decreased in untrained subjects but did not change significantly in T and F athletes or competitive swimmers. Moreover, the DBP did not change significantly in untrained subjects or T and F athletes but increased significantly in swimmers. As with the head-up tilt, during the head-up suspension, the SBP decreased significantly and the heart rate increased significantly in both types of athletes, though the MBP decreased significantly. The ratios of decrease in stroke volume and cardiac output were significantly larger in swimmers than in T and F athletes during head-up tilt, but no significant difference was noted during head-up suspension. In T and F athletes, the ratios of decrease in stroke volume and cardiac output were significantly larger during head-up suspension than during head-up tilt, but no significant difference was noted in swimmers. The action of the antigravity muscles on cardiovascular regulation during upright standing is smaller in competitive swimmers than in T and F athletes.

  11. Navigational Heads-Up Display: Will a Shipboard Augmented Electronic Navigation System Sink or Swim?

    Science.gov (United States)

    2015-03-01

    J. R. (2014). Reducing specific phobia /fear in young people with autism spectrum disorders (ASDs) through a virtual reality environment...maneuver either due to environmental or operational reasons. The seminal text for newly reporting surface warfare officers defines four specific ...symbols which can be selected to show more information about any specific ship. AIS keeps a record of the vessel name, call sign, voyage plan

  12. Development of a Night Vision Goggle Heads-Up Display for Paratrooper Guidance

    Science.gov (United States)

    2008-06-01

    thesis advisor, Dr. John Raquet for his endless support throughout my research. His insight and gentle nudging kept me from losing my mind completely. I...Extensive work has been conducted in the 3-D routing arena in respect to Motion Planning (MP) for robotics . This is one of the most important areas of... robotic research since the complexity of the motion-planning problem has hindered the development of practical algorithms. Until recently, robots were pri

  13. Analysis of ghost images in a compound prismatic combiner for head-up-displays

    Science.gov (United States)

    Vasilyev, V. N.; Romanova, G. E.; Grishina, N. Y.; Bakholdin, A. V.

    2015-09-01

    Systems of augmented reality are widely used not only in military but and in civil application. Providing a sufficient size for the pupil zone, which is the area where the user's eye could be located, may be implemented in different ways. One of the ways is to multiply (duplicate) the pupil using a beam-splitting with special coating or elements, for example with semi-transparent layers. This method is very attractive because it can provide the most compact schemes. The compound prismatic combiner which uses waveguide principle is considered and analyzed in the work. It was shown in previous work that the angles of the entrance prism and layers should be chosen in certain limits to provide beam passing through the structure due to total internal reflection, partially reflected by beam-splitting layers. This structure has mosaic structure of the pupil zone that means appearing the dark zones where the part of an image does not exist. To minimize dark zones the structure step should be minimal but the ghost images may appear. Dark zones size and brightness of the ghosts are dependent on the combiner's parameters, so we can find optimal case as a compromise between the dark zone size and ghost image. Analysis of the ghosts' brightness was implemented, and optimal locations of the observer's eye and optimal structure parameters were found from the point of view of minimizing ghosts for the system with the smallest blind zone sizes.

  14. A neuroergonomic quasi-experiment: Predictors of situation awareness and display usability while performing complex tasks

    Science.gov (United States)

    Harbour, Steven D.; Christensen, James C.

    2015-05-01

    Situation awareness (SA) is the ability and capacity to perceive information and act on it acceptably. Head Up Display (HUD) versus Head Down Display (HDD) manipulation induced variation in task difficulty. HUD and HDD cockpit displays or display designs promoted or impaired SA. The quantitative research presented in this paper examines basic neurocognitive factors in order to identify their specific contributions to the formation of SA, while studying display usability and the effects on SA. Visual attentiveness (Va), perceptiveness (Vp), and spatial working memory (Vswm) were assessed as predictors of SA under varying task difficulty. The study participants were 19 tactical airlift pilots, selected from the Ohio Air National Guard. Neurocognitive tests were administered to the participants prior to flight. In-flight SA was objectively and subjectively assessed for 24 flights. At the completion of this field experiment, the data were analyzed and the tests were statistically significant for the three predictor visual abilities Vp, Va, and Vswm as task difficulty was varied, F(3,11) = 8.125, p = .008. In addition, multiple regression analyses revealed that the visual abilities together predicted a majority of the variance in SA, R2 = 0.753, p = .008. As validated and verified by ECG and EEG data, the HUD yielded a full ability and capacity to anticipate and accommodate trends were as the HDD yielded a saturated ability to anticipate and accommodate trends. Post-hoc tests revealed a Cohen's f2 = 3.05 yielding statistical power to be 0.98. This work results in a significant contribution to the field by providing an improved understanding of SA and path to safer travel for society worldwide. PA 88ABW-2015-1282.

  15. Review of head-worn displays for the Next Generation Air Transportation System

    Science.gov (United States)

    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.

  16. Using a helmet-mounted display computer simulation model to evaluate the luminance requirements for symbology

    Science.gov (United States)

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

    2005-05-01

    As the Army increases its reliance upon and continues to develop helmet mounted displays (HMDs) or head-up displays (HUDs), it is paramount that displays are developed that meet the operational needs of the warfighter. During the development cycle, questions always arise concerning the operational requirements of the HMD. These include questions concerning luminance, contrast, color and resolution. To provide intelligent answers to these operational questions, a method has been devised to evaluate these issues. Integral to this method is an HMD simulation model that was previously presented at this meeting. The model is continually undergoing improvements with additional features and improved accuracy. The model allows for the simulation of see-through images with overlaid symbology. In this study, symbology was overlaid over eight natural images, one uniform field, and one artificial background composed of moderate to high spatial frequencies. Observers graded the quality of symbology on a scale of 1 to 7, with 7 representing symbology of high contrast and excellent quality. In all, observers graded 200 images (20 images per background scene). These images ranged from an average Michaelson contrast value of about 0.09 to 0.93. We found, as have others, that the complexity of the backgrounds greatly affected the observer"s rating. The simulated images were analyzed and statistical correlates were developed that could relate to the observer"s ratings. Metrics were developed that could help predict the luminance requirements for HMD or HUD symbology.

  17. HUD Digital Government Strategy Report

    Data.gov (United States)

    Department of Housing and Urban Development — The HUD Digital Strategic Plan clearly articulates the goals of openness and transparency, furthering the innovation economy and meeting more global government wide...

  18. HUD Approved Housing Counseling Agencies

    Data.gov (United States)

    Department of Housing and Urban Development — HUD sponsors housing counseling agencies throughout the country that can provide advice on buying a home, renting, defaults, foreclosures, and credit issues. This...

  19. Tilt angles and positive response of head-up tilt test in children with orthostatic intolerance.

    Science.gov (United States)

    Lin, Jing; Wang, Yuli; Ochs, Todd; Tang, Chaoshu; Du, Junbao; Jin, Hongfang

    2015-01-01

    This study aimed at examining three tilt angle-based positive responses and the time to positive response in a head-up tilt test for children with orthostatic intolerance, and the psychological fear experienced at the three angles during head-up tilt test. A total of 174 children, including 76 boys and 98 girls, aged from 4 to 18 years old (mean 11.3±2.8 years old), with unexplained syncope, were randomly divided into three groups, to undergo head-up tilt test at the angles of 60°, 70° and 80°, respectively. The diagnostic rates and times were analysed, and Wong-Baker face pain rating scale was used to access the children's psychological fear. There were no significant differences in diagnostic rates of postural orthostatic tachycardia syndrome and vasovagal syncope at different tilt angles during the head-up tilt test (p>0.05). There was a significant difference, however, in the psychological fear at different tilt angles utilising the Kruskal-Wallis test (χ2=36.398, pvasovagal syncope children. There was no significant difference in the time to positive response, at different tilt angles during the head-up tilt test for vasovagal syncope or for postural orthostatic tachycardia syndrome. Hence, it is suggested that a tilt angle of 60° and head-up tilt test time of 45 minutes should be suitable for children with vasovagal syncope.

  20. HUD Subprime and Manufactured Home Lender List

    Data.gov (United States)

    Department of Housing and Urban Development — The U.S. Department of Housing and Urban Development (HUD) periodically produce its HUD Subprime and Manufactured home Lender List for the lenders who specialize in...

  1. Heads Up

    Science.gov (United States)

    ... top priority.Whether you are a parent , youth sports coach , school coach , school professional , or health care provider , this ... am a… Youth Sports League Coach Parent Athlete Sports Official School Sports Coach Parent Athlete Sports Official School School ...

  2. Impaired cerebral autoregulation during head up tilt in patients with severe brain injury

    DEFF Research Database (Denmark)

    Riberholt, Christian Gunge; Olesen, Niels Damkjær; Thing, Mira

    2016-01-01

    mean velocity and estimated cerebral perfusion pressure. Patients with acquired brain injury presented an increase in mean flow index during head-up tilt indicating impaired autoregulation (P frequency domain revealed lower magnitudes of ∼0.......1 Hz spectral power in patients compared to healthy controls suggesting baroreflex dysfunction. In conclusion, patients with severe acquired brain injury and orthostatic intolerance during head-up tilt have impaired cerebral autoregulation more than one month after brain injury.......Early mobilization is of importance for improving long-term outcome for patients after severe acquired brain injury. A limiting factor for early mobilization by head-up tilt is orthostatic intolerance. The purpose of the present study was to examine cerebral autoregulation in patients with severe...

  3. Cholinergic induced mesenteric vasorelaxation in response to head-up tilt

    DEFF Research Database (Denmark)

    Perko, M J; Madsen, P; Perko, G

    1999-01-01

    resistance as expressed by analogous elevations in the diastolic blood velocity (to 62 +/- 9 vs. 56 +/- 7 cm s-1 with placebo). Throughout the normotensive and hypotensive phases of head-up tilt, cholinergic blockade reduced mesenteric artery mean blood velocity by 39 and 42%, respectively, corresponding......Central hypovolaemia induced by head-up tilt evokes a reduction in superior mesenteric artery resistance resulting in maintenance of regional blood flow. Mechanisms of importance for this response are not known, but a parasympathetic contribution could be expected. To evaluate this hypothesis......, superior mesenteric artery blood flow and resistance were evaluated by duplex ultrasound in eight healthy volunteers during postprandial head-up tilt with and without cholinergic blockade. During supine rest, cholinergic blockade did not influence the postprandial reduction in peripheral mesenteric artery...

  4. Heads-Up Macular Surgery with a 27-Gauge Microincision Vitrectomy System and Minimal Illumination

    Directory of Open Access Journals (Sweden)

    Hiroshi Kunikata

    2016-11-01

    Full Text Available Objective: We combined heads-up 3-dimensional (3D 27-gauge microincision vitrectomy surgery (27GMIVS with a very low-intensity illumination system. Methods: This study was based on a retrospective, interventional case series of 6 eyes of 6 patients with macular disease. All patients underwent heads-up 3D 27GMIVS and the power of the intraocular illuminator was set to its minimum level, 1% (approximately 0.1 lm, throughout the surgery. Results: We found that the procedure was easy when the heads-up 3D system was used, but not through the eyepiece of a microscope. All surgeries were successfully finished without any complications. Postoperative visual acuity was restored or maintained in all eyes during the follow-up period. Conclusion: Heads-up, 3D system-assisted 27GMIVS with minimal illumination enabled excellent intraoperative visualization of retinal tissues, caused minimal phototoxicity to the macular retinal cells, and might therefore represent the next step in the development of an ideal, minimally invasive method of treating macular disease.

  5. Relationship between blood pressure and heart-rate variability during graded head-up tilt.

    Science.gov (United States)

    Yokoi, Y; Aoki, K

    1999-02-01

    To investigate the relationship between change in blood pressure and autonomic nerve activity, two types of head-up tilt experiments were performed. One was a 30 degrees, 45 degrees, 60 degrees, and 90 degrees graded tilt-up, in which tilt angles were changed at 6-min intervals and 5 min were spent at each angle. The other was a 10-min lasting head-up tilt at 60 degrees. Electrocardiogram (ECG) and blood pressure (Finapres) of 18 healthy non-smoking subjects (9 men, 9 women) were recorded during the experiments. Heart-rate variability was examined by general spectral analysis (GSA). The high-frequency/total-area ratio (HF/TO) showed a decrease as the tilt angle increased. Compared with the values at the 0 degrees position, these changes were statistically significant (P < 0.05). The low-frequency/HF ratio (LF/HF) showed a significant (P < 0.05) difference between 0 degrees and 90 degrees, and between 30 degrees and 90 degrees. Some of the subjects could not maintain their blood pressure during either of the head-up tilt experiments, and they showed only a slight change in HF/TO and LF/HF. This result confirmed that immediate responses to head-up tilt reflect autonomic nerve activity. Hence, changes in the frequency components were found to be an index of autonomic nerve activity, and they explained the individual differences observed in the ability to control blood pressure during a transition to upright posture.

  6. Impaired Cerebral Autoregulation during Head Up Tilt in Patients with Severe Brain Injury.

    Directory of Open Access Journals (Sweden)

    Christian Gunge Riberholt

    Full Text Available Early mobilization is of importance for improving long-term outcome for patients after severe acquired brain injury. A limiting factor for early mobilization by head-up tilt is orthostatic intolerance. The purpose of the present study was to examine cerebral autoregulation in patients with severe acquired brain injury and a low level of consciousness. Fourteen patients with severe acquired brain injury and orthostatic intolerance and fifteen healthy volunteers were enrolled. Blood pressure was evaluated by pulse contour analysis, heart rate and RR-intervals were determined by electrocardiography, middle cerebral artery velocity was evaluated by transcranial Doppler, and near-infrared spectroscopy determined frontal lobe oxygenation in the supine position and during head-up tilt. Cerebral autoregulation was evaluated as the mean flow index calculated as the ratio between middle cerebral artery mean velocity and estimated cerebral perfusion pressure. Patients with acquired brain injury presented an increase in mean flow index during head-up tilt indicating impaired autoregulation (P < 0.001. Spectral analysis of heart rate variability in the frequency domain revealed lower magnitudes of ~0.1 Hz spectral power in patients compared to healthy controls suggesting baroreflex dysfunction. In conclusion, patients with severe acquired brain injury and orthostatic intolerance during head-up tilt have impaired cerebral autoregulation more than one month after brain injury.

  7. Mesenteric artery response to head-up tilt-induced central hypovolaemia and hypotension

    DEFF Research Database (Denmark)

    Perko, M J; Madsen, P; Perko, Grazyna

    1997-01-01

    Superior mesenteric artery (SMA) blood flow and impedance were evaluated by duplex ultrasound during head-up tilt (HUT)-induced central hypovolaemia and hypotension in eight healthy volunteers. HUT induced a reduction in cardiac stroke volume from 88.8 +/- 6.3 to 64.7 +/- 6.3 ml (mean +/- SEM; P ...

  8. HuD Regulates Coding and Noncoding RNA to Induce APP→Aβ Processing

    Directory of Open Access Journals (Sweden)

    Min-Ju Kang

    2014-06-01

    Full Text Available The primarily neuronal RNA-binding protein HuD is implicated in learning and memory. Here, we report the identification of several HuD target transcripts linked to Alzheimer’s disease (AD pathogenesis. HuD interacted with the 3′ UTRs of APP mRNA (encoding amyloid precursor protein and BACE1 mRNA (encoding β-site APP-cleaving enzyme 1 and increased the half-lives of these mRNAs. HuD also associated with and stabilized the long noncoding (lncRNA BACE1AS, which partly complements BACE1 mRNA and enhances BACE1 expression. Consistent with HuD promoting production of APP and APP-cleaving enzyme, the levels of APP, BACE1, BACE1AS, and Aβ were higher in the brain of HuD-overexpressing mice. Importantly, cortex (superior temporal gyrus from patients with AD displayed significantly higher levels of HuD and, accordingly, elevated APP, BACE1, BACE1AS, and Aβ than did cortical tissue from healthy age-matched individuals. We propose that HuD jointly promotes the production of APP and the cleavage of its amyloidogenic fragment, Aβ.

  9. 24 CFR 15.110 - What fees will HUD charge?

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false What fees will HUD charge? 15.110... INFORMATION BY HUD EMPLOYEES FOIA Disclosure of Information § 15.110 What fees will HUD charge? (a) How will HUD determine your fee? HUD will determine your fee based on which category of requester you are in...

  10. Head-up suspension in humans: effects on sympathetic vasomotor activity and cardiovascular responses.

    Science.gov (United States)

    Shamsuzzaman, A S; Sugiyama, Y; Kamiya, A; Fu, Q; Mano, T

    1998-05-01

    We hypothesized that muscle sympathetic nerve activity (MSNA) and cardiovascular responses to the conventional head-up tilt (HUT) are different from those to head-up suspension (HUS) because of antigravity muscle activity. The MSNA from the tibial nerve, heart rate, blood pressure, stroke volume, cardiac output, and calf blood flow were measured in 13 healthy young subjects. Left atrial diameter was measured by two-dimensional echocardiography in another nine subjects. The resting MSNA and cardiovascular responses at a low level (20 degrees) of orthostasis were similar during both modes. At higher levels (40 and 60 degrees), the responses of MSNA, heart rate, stroke volume, and cardiac output were significantly stronger and there was a smaller reduction in calf blood flow during HUT than during HUS (P antigravity muscles during HUT may have additive effects on sympathetic vasoconstrictor and cardiovascular responses to orthostatic stress.

  11. Liquid Crystal Airborne Display

    Science.gov (United States)

    1977-08-01

    with the drive capability of the present state-of-the- art microm.ziiaturized integi ated circuits. The impact of microminiaturizing the drive circuits...7 Advantages /Disadvantages of Prior Art .........- 8 Performance of the Liquid Crystal Matrix Display . . .. 8 Liquid Crystal...Holographic HUD Light Source ...................... .... 99 Design of a Special Purpose Mercury Art - Plo.?hcr La np . 104 V LARGE SCALE INTEGRATION FOR DISPLAY

  12. Flavonoids from Ficaria verna Huds.

    Science.gov (United States)

    Tomczyk, Michal; Gudej, Jan; Sochacki, Marek

    2002-01-01

    A phytochemical investigation of the flowers and leaves of Ficaria verna Huds. (Ranunculaceae) yielded four additional known flavonoid compounds including: kaempferol 3-O-beta-D-(6"-a-L-rhamnopyranosyl)-glucopyranoside (nicotiflorin), apigenin 8-C-beta-D-glucopyranoside (vitexin), luteolin 8-C-beta-D-glucopyranoside (orientin) and apigenin 8-C-beta-D-(2"-O-beta-D-glucopyranosyl)-glucopyranoside (flavosativaside). The characterisation of these compounds was achieved by various chromatographic and spectroscopic methods (UV, 1H NMR, 13C NMR and MS).

  13. The effect of configural displays on pilot situation awareness in helmet-mounted displays

    Science.gov (United States)

    Jenkins, Joseph Christopher

    The current research utilized configural displays within the domain of aviation to assess what design features of configural displays contribute to the formation of operator situation awareness (SA). Configural displays map system information relevant to operator goals onto geometric shapes called emergent features. An emergent feature is formed from the combination of individual line segments to produce a global feature more perceptually salient and recognized sooner than the individual parts themselves. Configural displays have been shown in previous research to provide better operator performance for integration tasks where multiple pieces of information must be considered at once, yet the design aspects of configural displays that impact the formation of operator SA have yet to be determined. The current research compared the design features of three aviation configural displays over four experiments to quantify what aspects of configural displays would impact operator SA. The research sought to determine whether the simple act of representing system information in configural displays using emergent features is sufficient for facilitating operator SA or do other design factors need to be considered? Operator SA was assessed using explicit and implicit measures of SA from operator task performance in addition to a subjective SA rating scale. The recognition of aircraft attitude (climb/dive flight angles) when briefly presented to pilots in Experiment 1 revealed significant performance differences for the Arc Segment Attitude Reference (ASAR) configural display which mapped aircraft attitude information onto a circular shape versus the traditional aircraft head-up display (HUD) ladder found in the Joint Strike Fighter (JSF) HUD and Dual-Articulated (DA) HUD. The current research in Experiment 1 provides evidence that configural displays such as the ASAR that utilize emergent features well mapped to fully relate the information needed for a task will facilitate

  14. Different haemodynamic patterns in head-up tilt test on 400 paediatric cases with unexplained syncope.

    Science.gov (United States)

    Yozgat, Yilmaz; Karadeniz, Cem; Ozdemir, Rahmi; Doksoz, Onder; Kucuk, Mehmet; Karaarslan, Utku; Mese, Timur; Unal, Nurettin

    2015-06-01

    To assess haemodynamic patterns in head-up tilt testing on 400 paediatric cases with unexplained syncope. Medical records of 520 children who underwent head-up tilt testing in the preceding year were retrospectively evaluated, and 400 children, 264 (66%) girls and 136 (34%) boys, aged 12.6±2.6 years (median 13; range 5-18), with unexplained syncope were enrolled in the study. Age, sex, baseline heart rate, baseline blood pressure, frequency of symptoms, and/or fainting attacks were recorded. The test protocol consisted of 25 minutes of supine resting followed by 20 minutes of 70° upright positioning. Subjects were divided into nine groups according to their differing haemodynamic patterns. There were no statistically significant differences between the groups with regard to age, gender, baseline blood pressure, and frequency of syncope (p>0.05). The response was compatible with orthostatic intolerance in 28 cases (7.0%), postural orthostatic tachycardia syndrome in 24 cases (6.0%), asymptomatic postural orthostatic tachycardia syndrome in 26 cases (6.5%), orthostatic hypotension in seven cases (1.7%), vasovagal syncope in 38 cases (9.5%), and negative in 274 cases (69.2%). Vasovagal syncope response patterns were of type 3 in nine cases (2.2%), type 2A in 10 cases (2.5%), type 2B in two cases (0.5%), and type 1 (mixed) in 17 cases (4.25%). In the 400 paediatric cases with unexplained syncope, nine different haemodynamic response patterns to head-up tilt testing were discerned. Children with orthostatic intolerance syndromes are increasingly referred to hospitals because of difficulty in daily activities. Therefore, there is need for further clinical trials in these patient groups.

  15. A Three-Dimensional Heads-Up Primary Navigation Reference Display for Paratroopers Performing High Altitude High Open Jumps

    Science.gov (United States)

    2003-03-25

    2.3.1.2 OPANAS OPANAS is a parachute navigation system developed by Navocap Ingenierie Electronique, a French company. The system, used by the French...desired flight path enabling users to follow a precise path [BAR99]. This approach gives users pre- cognitive visual boundaries in which they must stay

  16. Head-up tilt rapidly compromises hemodynamics in healthy anesthetized swine.

    Science.gov (United States)

    Mlcek, M; Belohlavek, J; Huptych, M; Boucek, T; Belza, T; Lacko, S; Krupickova, P; Hrachovina, M; Popkova, M; Neuzil, P; Kittnar, O

    2015-01-01

    The aims were to explore the effect of head-up tilt (HUT) to 30 and 60 degrees on hemodynamics and tissue oxygenation in anesthetized healthy swine. The data serve as a reference for a study of resuscitation efficacy at HUT such as during transport. Nine healthy swine (49+/-4 kg) were anesthetized and multiple sensors including myocardial pressure-volume loops catheter, carotid flow probe, blood pressure catheters, near infrared spectroscopy (NIRS) tissue oximetry and mixed venous oximetry (SVO2) catheter were introduced and parameters continuously recorded. Experimental protocol consisted of baseline in supine position (15 min), 30 degrees HUT (15 min), recovery at supine position (15 min) and 60 degrees HUT (5 min). Vacuum mattress was used for body fixation during tilts. We found that 30 and 60 degrees inclination led to significant immediate reduction in hemodynamic and oximetry parameters. Mean arterial pressure (mm Hg) decreased from 98 at baseline to 53 and 39, respectively. Carotid blood flow dropped to 47 % and 22 % of baseline values, end diastolic volume to 49 % and 53 % and stroke volume to 47 % and 45 % of baseline. SVO2 and tissue oximetry decreased by 17 and 21 percentage points. The values are means. In conclusions, within minutes, both 30 and 60 degrees head-up tilting is poorly tolerated in anesthetized swine. Significant differences among individual animals exist.

  17. Brain and muscle oxygen saturation during head-up-tilt-induced central hypovolaemia in humans.

    Science.gov (United States)

    Madsen, P; Lyck, F; Pedersen, M; Olesen, H L; Nielsen, H; Secher, N H

    1995-09-01

    Near-infrared spectrophotometry-determined cerebral (ScO2) and muscle oxygen saturations (SmO2) were followed in 15 volunteers during passive 50 degrees head-up-tilt-induced central hypovolaemia, and in nine volunteers during ventilatory manoeuvres affecting arterial carbon dioxide tension. During head-up tilt, mean arterial pressure [MAP, 88 (77-118) to 97 (80-136) mmHg, median and range] and heart rate [HR; 66 (49-77) to 87 (42-132) beats min-1 P tilt-up. The ScO2 decreased, and SmO2 increased during hyperventilation, and ScO2 increased during breathing of 5% carbon dioxide. Rebreathing from a bag made SmO2 decrease and resulted in a biphasic ScO2 response: it first increased and subsequently decreased. Cardiovascular changes during tilt were not reflected in skin temperature. The ScO2 reflected the maintained autoregulation of cerebral blood flow until the perfusion pressure decreased markedly. In contrast, SmO2 mirrored muscle vasoconstriction early during tilt, and vasodilatation when pre-syncopal symptoms appeared.

  18. Head-up tilt test with clomipramine challenge in vasovagal syndrome--a new tilt testing protocol

    National Research Council Canada - National Science Library

    Theodorakis, G N; Livanis, E G; Leftheriotis, D; Flevari, P; Markianos, M; Kremastinos, D Th

    2003-01-01

    The aim of the study was to randomly compare clomipramine, used as a challenge-agent during head-up tilt test, with isoproterenol, used in the conventional test, in patients with vasovagal syndrome...

  19. HUD Low and Moderate Income Areas

    Data.gov (United States)

    Department of Housing and Urban Development — This dataset and map service provides information on the U.S. Housing and Urban Development's (HUD) low to moderate income areas. The term Low to Moderate Income,...

  20. HUD Hearings and Appeals Office Decisions

    Data.gov (United States)

    Department of Housing and Urban Development — These all of the Administrative Sanction decisions issued by the Office of Appeals and its predecessor, the HUD Board of Contract Appeals. This Office has included...

  1. Computer science. Heads-up limit hold'em poker is solved.

    Science.gov (United States)

    Bowling, Michael; Burch, Neil; Johanson, Michael; Tammelin, Oskari

    2015-01-09

    Poker is a family of games that exhibit imperfect information, where players do not have full knowledge of past events. Whereas many perfect-information games have been solved (e.g., Connect Four and checkers), no nontrivial imperfect-information game played competitively by humans has previously been solved. Here, we announce that heads-up limit Texas hold'em is now essentially weakly solved. Furthermore, this computation formally proves the common wisdom that the dealer in the game holds a substantial advantage. This result was enabled by a new algorithm, CFR(+), which is capable of solving extensive-form games orders of magnitude larger than previously possible. Copyright © 2015, American Association for the Advancement of Science.

  2. Simulation of Cardiovascular Response to the Head-Up/Head-Down Tilt at Different Angles

    Science.gov (United States)

    Liu, Yang; Lu, Hong-Bing; Jiao, Chun; Zhang, Li-Fan

    2008-06-01

    The disappearance of hydrostatic pressure is the original factor that causes the changes of cardiovascular system under microgravity. The hydrostatical changes can be simulated by postural changes. Especially the head-down position can be used to simulate the effects of microgravity. The goal of this investigation was to develop a mathematical model for simulation of the human cardiovascular responses to acute and prolonged exposure under microgravity environment. We were particularly interested in the redistribution of transmural pressures, flows, blood volume, and the consequent alterations in local hemodynamics in different cardiovascular compartments during acute exposure and chronic adjustments. As a preliminary study, we first developed a multi-element, distributed hemodynamic model of human cardiovascular system, and verified the model to simulate cardiovascular changes during head up/down tilt at various angles.

  3. Mesenteric artery response to head-up tilt-induced central hypovolaemia and hypotension

    DEFF Research Database (Denmark)

    Perko, M J; Madsen, P; Perko, Grazyna

    1997-01-01

    Superior mesenteric artery (SMA) blood flow and impedance were evaluated by duplex ultrasound during head-up tilt (HUT)-induced central hypovolaemia and hypotension in eight healthy volunteers. HUT induced a reduction in cardiac stroke volume from 88.8 +/- 6.3 to 64.7 +/- 6.3 ml (mean +/- SEM; P ... the normotensive and the hypotensive phase of HUT, the SMA diameter (5.7 +/- 0.03 mm) and blood flow (514 +/- 75 ml min-1) did not change significantly, although the end-diastolic velocity increased from 9.7 +/- 4.8 to 39.7 +/- 4.0 cm s-1 (P ... or reduced arterial pressure, supports a reduction in the SMA impedance as it was reproduced during a meal test when a moderate reduction in mean arterial pressure (87 +/- 4 to 80 +/- 4 mm Hg; P = 0.04) was accompanied by a ninefold increase in the end-diastolic velocity (P

  4. Muscle oxygen saturation increases during head-up tilt-induced (pre)syncope

    DEFF Research Database (Denmark)

    Lund, A.; Sorensen, H.; Jensen, T. W.

    2017-01-01

    Aim To evaluate whether muscle vasodilatation plays a role for hypotension developed during central hypovolaemia, muscle oxygenation (SmO2) was examined during (pre)syncope induced by head-up tilt (HUT). Skin blood flow (SkBF) and oxygenation (SskinO2) were determined because evaluation of SmO2 may...... be affected by superficial tissue oxygenation. Furthermore, we evaluated cerebral oxygenation (ScO2) and middle cerebral artery mean blood flow velocity (MCAvmean). Methods Twenty healthy male volunteers (median age 24 years; range 19–38) were subjected to passive 50° HUT for 1 h or until (pre)syncope. ScO2......)syncope was associated with an increase in SmO2 despite reduced SskinO2 and SkBF, supporting that muscle vasodilation plays an important role in the circulatory events leading to hypotension during HUT....

  5. DeepStack: Expert-level artificial intelligence in heads-up no-limit poker.

    Science.gov (United States)

    Moravčík, Matej; Schmid, Martin; Burch, Neil; Lisý, Viliam; Morrill, Dustin; Bard, Nolan; Davis, Trevor; Waugh, Kevin; Johanson, Michael; Bowling, Michael

    2017-05-05

    Artificial intelligence has seen several breakthroughs in recent years, with games often serving as milestones. A common feature of these games is that players have perfect information. Poker, the quintessential game of imperfect information, is a long-standing challenge problem in artificial intelligence. We introduce DeepStack, an algorithm for imperfect-information settings. It combines recursive reasoning to handle information asymmetry, decomposition to focus computation on the relevant decision, and a form of intuition that is automatically learned from self-play using deep learning. In a study involving 44,000 hands of poker, DeepStack defeated, with statistical significance, professional poker players in heads-up no-limit Texas hold'em. The approach is theoretically sound and is shown to produce strategies that are more difficult to exploit than prior approaches. Copyright © 2017, American Association for the Advancement of Science.

  6. Nueva variedad de Ophrys apifera Huds

    OpenAIRE

    Pérez Chiscano, José Luis; Durán, Fernando; Gil Llano, José Ramón

    1991-01-01

    [ES] Se propone una nueva variedad, Ophrys apifera Huds. var. almaracensis Pérez Chiscano, Duran Oliva, & Gil Llano var. nova, dando la descripción morfológica, ploidía, localidad geográfica, fenología y ecología. [EN] A new variety, Ophrys apifera Huds. var. almaracensis Pérez Chiscano, Duran Oliva & Gil Llano var. nova is proposed. Their morfology, ploidy, fenology, ecology and geographical locality are indicated.

  7. Calf Venous Compliance in Supine Posture Equals that Measured with Head-up Tilt

    Science.gov (United States)

    Watenpaugh, Donald E.; Ballard, R. E.; Breit, G. A.; Bernauer, E. M.; Blomqvist, C. G.; Hargens, Alan R.

    1995-01-01

    Calf venous compliance is measured conventionally with venous occlusion, where compliance equals calf volume elevation per mmHg thigh occlusion pressure in relaxed legs of supine subjects. Compliance may also be measured during stepwise head-up tilt (HUT) as calf volume elevation per mmHg gravitational venous pressure elevation produced by HUT. Although HUT on a tilt table with a footplate activates calf muscles which could reduce compliance, this muscle activation is relatively small (less than or = 10% of maximal voluntary levels). Therefore, we hypothesized that calf compliance measured with HUT equals that measured with conventional supine venous occlusion. The venous occlusion protocol consisted of 20, 40, 60 and 80 mmHg thigh cuff inflations held for 1, 2, 3 and 4 min, respectively, in 14 supine subjects. One min of cuff deflation to 0 mmHg separated occlusions. Nine other subjects underwent HUT through the following angles held for 30s each: -12 deg., -6 deg., 0 deg., 12 deg., 30 deg., 54 deg., and 90 deg. HUT calf venous pressure data were interpolated from Katkov and Chestukhin; these data correspond to 70-80% of calculated calf venous pressure changes (pgh). Liquid metal-in-silastic strain gauges measured calf volume for both venous occlusion and HUT compliance. Relaxed calf compliance in supine subjects equaled 4.6 +/- 0.4 ml/mmHg (X +/- SE), as measured with venous occlusion. Calf compliance during HUT equaled 4.6 +/- 1.0 ml/mmHg. Therefore, calf compliance in supine, relaxed subjects equals that measured during head-up tilt. We conclude that the minimal calf muscle activation which occurs during HUT does not importantly affect calf compliance.

  8. HUD Continuum of Care (CoC) Awards (2005-2016)

    Data.gov (United States)

    City and County of Durham, North Carolina — HUD grantees receive funding from HUD to support HUD's mission to create strong, sustainable, inclusive communities and quality affordable homes for all. HUD...

  9. Effect of serotonin receptor blockade on endocrine and cardiovascular responses to head-up tilt in humans

    DEFF Research Database (Denmark)

    Matzen, S; Secher, N H; Knigge, U

    1993-01-01

    Effects of blockade of serotonin (5-HT) receptors on the integrated cardiovascular and endocrine adaptations during head-up tilt were investigated in normal men. In control experiments 50 degrees head-up tilt increased heart rate (HR), total peripheral resistance (TPR), plasma renin activity (PRA...... abolished the adrenomedullary response to hypotension without affecting cardiovascular tolerance or the activity of the pituitary-adrenal axis. The results suggest that serotonergic mechanisms may be involved in the integrated cardiovascular and endocrine responses to central blood volume depletion...

  10. Heart rate variability in athletes and nonathletes at rest and during head-up tilt

    Directory of Open Access Journals (Sweden)

    F.S. Martinelli

    2005-04-01

    Full Text Available The purpose of the present study was to determine if autonomic heart rate modulation, indicated by heart rate variability (HRV, differs during supine rest and head-up tilt (HUT when sedentary and endurance-trained cyclists are compared. Eleven sedentary young men (S and 10 trained cyclists (C were studied. The volunteers were submitted to a dynamic ECG Holter to calculate HRV at rest and during a 70º HUT. The major aerobic capacity of athletes was expressed by higher values of at anaerobic threshold and peak conditions (P < 0.05. At rest the athletes had lower heart rates (P < 0.05 and higher values in the time domain of HRV compared with controls (SD of normal RR interval, SDNN, medians: 59.1 ms (S vs 89.9 ms (C, P < 0.05. During tilt athletes also had higher values in the time domain of HRV compared with controls (SDNN, medians: 55.7 ms (S vs 69.7 ms (C, P < 0.05. No differences in power spectral components of HRV at rest or during HUT were detected between groups. Based on the analysis of data by the frequency domain method, we conclude that in athletes the resting bradycardia seems to be much more related to changes in intrinsic mechanisms than to modifications in autonomic control. Also, HUT caused comparable changes in sympathetic and parasympathetic modulation of the sinus node in both groups.

  11. Low cost heads-up virtual reality (HUVR) with optical tracking and haptic feedback

    Science.gov (United States)

    Margolis, Todd; DeFanti, Thomas A.; Dawe, Greg; Prudhomme, Andrew; Schulze, Jurgen P.; Cutchin, Steve

    2011-03-01

    Researchers at the University of California, San Diego, have created a new, relatively low-cost augmented reality system that enables users to touch the virtual environment they are immersed in. The Heads-Up Virtual Reality device (HUVR) couples a consumer 3D HD flat screen TV with a half-silvered mirror to project any graphic image onto the user's hands and into the space surrounding them. With his or her head position optically tracked to generate the correct perspective view, the user maneuvers a force-feedback (haptic) device to interact with the 3D image, literally 'touching' the object's angles and contours as if it was a tangible physical object. HUVR can be used for training and education in structural and mechanical engineering, archaeology and medicine as well as other tasks that require hand-eye coordination. One of the most unique characteristics of HUVR is that a user can place their hands inside of the virtual environment without occluding the 3D image. Built using open-source software and consumer level hardware, HUVR offers users a tactile experience in an immersive environment that is functional, affordable and scalable.

  12. Capillary Pressure Balance with Repeated Head-Up Tilt in Humans

    Science.gov (United States)

    Hinghofer-Szalkay, H. G.; Greenleaf, J. F.

    1995-01-01

    We measured blood density (BD). plasma density (PD) and hematocrit (Ht) during repeated 70 deg head-up tilt (HUT) consisting of a pre-drink period with two supine (P and P3) and two HUT (P2 and P4) phases of 45 min each. At the end of P4 test subjects (N=8) drank 10 ml/kg body weight of isotonic (290 mOsm/kg) sodium chloride (ISO) or hypotonic (drink treatment (P3, P5, P7), supine PV steadly decreased when compared to P1. Tilt-induced PV shifts ranged from 9.7 to 16.7% when compared to PV du. ring the respective previous Phases. After drinking, PV increased above CON values at the end of Phase 7 by 12.9% with ISO, and by 6.6% with HYP. Progressive hemoconcentration. occurred during non-drink supine; isotonic saline ingestion increased supine PV a control level but did not stop or reverse the decrease of upright hemoconcentration. Upright density values were not slowed with repeated upright tilting; decreased fluid loss occurred in consecutive upright periods. Upright capillary pressure balance was achieved with diminished plasma volume loss during repeated tilting.

  13. Head-up tilt test results in child twins with nervous mediated syncope.

    Science.gov (United States)

    Zhang, Wenhua; Wang, Shuo; Wang, Cheng; Liu, Liping; Lin, Ping; Li, Fang; Wu, Lijia; Zou, Runmei

    2016-10-15

    To investigate the familial genetic characteristics of syncope in children. A detailed medical history was taken from four twin pairs of children complaining of dizziness, headache, chest tightness, chest pain, prodromal symptoms of syncope or syncope, meanwhile, these patients were given routine physical examination, 12-lead ECG, echocardiography, Holter ECG, EEG, MRI of the head and other tests to exclude cardio-cerebrovascular and pulmonary diseases, with those with unknown origin for syncope undergoing head-up tilt test (HUTT) and inquiry of detailed family history. The four pairs of twins with syncope beginning at 7-12years and induced mostly by standing position (4/5), and positive family history was noted in two pairs. Vasovagal syncope (VVS)-vasoinhibitory response pattern was predominant in HUTT (4/5). The results and the response pattern in HUTT might diversify between two members within same twin pair: one appeared as vasoinhibitory response pattern and one postural orthostatic tachycardia syndrome (POTS) pattern in the first pair, one vasoinhibitory response pattern and one negative response pattern in the second pair, vasoinhibitory response pattern in the third pair and negative response pattern in the fourth pair. The hereditary factors may play a more important role in younger children with syncope. Environment and psychological factors may induced syncope attack. The results and the response pattern in HUTT are diversified and which might different between two members within twin pair. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  14. Low cost heads-up virtual reality (HUVR) with optical tracking and haptic feedback

    KAUST Repository

    Margolis, Todd

    2011-01-23

    Researchers at the University of California, San Diego, have created a new, relatively low-cost augmented reality system that enables users to touch the virtual environment they are immersed in. The Heads-Up Virtual Reality device (HUVR) couples a consumer 3D HD flat screen TV with a half-silvered mirror to project any graphic image onto the user\\'s hands and into the space surrounding them. With his or her head position optically tracked to generate the correct perspective view, the user maneuvers a force-feedback (haptic) device to interact with the 3D image, literally \\'touching\\' the object\\'s angles and contours as if it was a tangible physical object. HUVR can be used for training and education in structural and mechanical engineering, archaeology and medicine as well as other tasks that require hand-eye coordination. One of the most unique characteristics of HUVR is that a user can place their hands inside of the virtual environment without occluding the 3D image. Built using open-source software and consumer level hardware, HUVR offers users a tactile experience in an immersive environment that is functional, affordable and scalable.

  15. HUD Initiated Activity Cancellation Reports

    Data.gov (United States)

    Department of Housing and Urban Development — This monthly report displays all HOME activities automatically cancelled by IDIS. Effective January 1, 2011, and the beginning of every month thereafter, committed...

  16. 77 FR 41993 - Privacy Act of 1974; Proposed New Routine Use-HUD's Routine Use Inventory

    Science.gov (United States)

    2012-07-17

    .../ADMIN-01 Transit Subsidy System. HUD/ADM-02 HUD's Direct Distribution Center System. HUD/ADMIN-03 One... Interface Management System. HUD/ADMIN-09 Correspondence Tracking System. HUD/CFO/01 HUD Central Accounting... a statistical research or reporting record, and the record is to be transferred in a form that is...

  17. A study to evaluate STS heads-up ascent trajectory performance employing a minimum-Hamiltonian optimization strategy

    Science.gov (United States)

    Sinha, Sujit

    1988-01-01

    A study was conducted to evaluate the performance implications of a heads-up ascent flight design for the Space Transportation System, as compared to the current heads-down flight mode. The procedure involved the use of the Minimum Hamiltonian Ascent Shuttle Trajectory Evaluation Program, which is a three-degree-of-freedom moment balance simulation of shuttle ascent. A minimum-Hamiltonian optimization strategy was employed to maximize injection weight as a function of maximum dynamic pressure constraint and Solid Rocket Motor burnrate. Performance Reference Mission Four trajectory groundrules were used for consistency. The major conclusions are that for heads-up ascent and a mission nominal design maximum dynamic pressure value of 680 psf, the optimum solid motor burnrate is 0.394 ips, which produces a performance enhancement of 4293 lbm relative to the baseline heads-down ascent, with 0.368 ips burnrate solid motors and a 680 psf dynamic pressure constraint. However, no performance advantage exists for heads-up flight if the current Solid Rocket Motor target burnrate of 0.368 ips is used. The advantage of heads-up ascent flight employing the current burnrate is that Space Shuttle Main Engine throttling for dynamic pressure control is not necessary.

  18. Modulation of plasma adrenomedullin by epinephrine infusion during head up tilt.

    Science.gov (United States)

    Roessler, Andreas; Goswami, Nandu; Haditsch, Bernd; Hinghofer-Szalkay, Helmut

    2011-03-01

    We investigated whether head up tilt (HUT) with and without simultaneous epinephrine infusion modulate plasma adrenomedullin. We studied eight healthy male volunteers, using two 5 min 70° HUT trials: control (saline infusion) and intervention (epinephrine infusion, titrated to a dose which increased supine systolic pressure by 20% above resting values). Protocols were randomized and separated by 2 weeks. Cardiac function and systolic time intervals, recorded using a phonocardiograph microphone, included left ventricular ejection time (LVET), pre-ejection period (PEP), PEP/LVET and electromechanical systole (QS2). Compared to saline infusion, epinephrine increased supine adrenomedullin (3.2 ± 0.8 pmol/l, i.e., mean ± SEM, respectively), heart rate (HR) (+11.3 ± 2.6 bpm), systolic pressure (+18.4 ± 2.6 mmHg) but decreased supine LVET, LVET corrected for HR (LVETi) and QS2-time (all p = 0.004). Despite similar HUT induced thoracic fluid shifts, reflected by similar thoracic impedance changes, HUT-induced adrenomedullin increases were minimal in epinephrine-supplemented men in comparison to controls (+8% vs. 42%). During HUT, epinephrine infusion decreased only the LVET (p = 0.039). Our findings confirm that short-term HUT increases plasma adrenomedullin. They further suggest that with increased supine epinephrine levels (epinephrine infusion clamping systolic arterial pressure at 120% control level), supine cardiac performance rises to a level similar to that during HUT, while adrenomedullin is still elevated with HUT. This might be in accordance with a 'dampening' role of adrenomedullin during catecholaminergic cardiovascular stimulation. As epinephrine is used as a drug to treat cardiac arrest and ventricular arrhythmias, our results may have important clinical/emergency resuscitation applications.

  19. [Evaluation of psychological fear in children undergoing head-up tilt test].

    Science.gov (United States)

    Chu, Wei-Hong; Wu, Li-Jia; Wang, Cheng; Lin, Ping; Li, Fang; Zhu, Li-Ping; Ran, Jing; Zou, Run-Mei; Liu, De-Yu

    2014-03-01

    To investigate the effects of different tilt angles of head-up tilt test (HUTT) and different responses to HUTT on the psychological fear in children undergoing the test. HUTT was performed on children with unexplained syncope or pre-syncope (107 cases: 52 males and 55 females), aged 5.5-17.8 years (mean 12.0±2.8 years). All subjects were randomly assigned to undergo HUTT at an angle of 60°, 70° or 80°; the negative cases underwent sublingual nitroglycerin-provocation HUTT at the same tilt angle. The Wong-Baker Faces Pain Rating Scale was used for self-assessment of psychological fear in subjects during HUTT at the end point of the test. The positive rate, hemodynamic changes and distribution of response types showed no significant differences between children at tilt angles of 60°, 70° and 80° (P>0.05). The greater the tilt angle, the higher the degree of psychological fear in children undergoing the test, but there were no significant differences between them (P>0.05). The degree of psychological fear in children who showed a positive response to HUTT (n=76) was significantly higher than that in children who showed a negative response (n=31) (Ppsychological fear in children undergoing the test, and the degree of psychological fear increases in children tested at tilt angles from 60° to 80°, but the differences have no statistical significance. A positive response to HUTT can significantly increase the psychological fear in children.

  20. Short pain-provoked head-up tilt test for the confirmation of vasovagal syncope.

    Science.gov (United States)

    Adamec, Ivan; Mišmaš, Antonija; Zaper, Dinka; Junaković, Anamari; Hajnšek, Sanja; Habek, Mario

    2013-06-01

    We investigated a short pain-provoked head-up tilt (PP-HUT) and the Calgary Syncope Symptom Score in a group of patients with clinically diagnosed vasovagal syncope and group of neurological patients without transient loss of consciousness. We included 127 consecutive patients who were investigated in our laboratory. The group 1 included 56 patients who after appropriate investigations were diagnosed with vasovagal syncope. The group 2 included 70 neurological patients without transient loss of consciousness. The subjects were tilted to 70° for a maximum period of 10 min or until symptoms occurred. If there were no symptoms after initial 10 min, a painful stimulus with the insertion of 0.7 mm needle into the dorsum of hand subcutaneously for 30 s was performed with the patient in the tilted for further 5 min. Calgary Syncope Symptom Score was calculated for all patients. In the group 1, significantly higher number of patients had positive results on PP-HUT (36 vs. 6 patients, respectively; p syndrome (3 vs. 1 patient, respectively; p = 0.32) between groups. PP-HUT had sensitivity of 65.9 % (95 % CI 0.49-0.79) and specificity of 89.7 % (95 % CI 0.75-0.97). The CSSS had sensitivity of 58.5 % (95 % CI 0.42-0.73) and specificity of 46.1 % (95 % CI 0.30-0.63). PP-HUT has a higher diagnostic rate than the CSSS and provides a rapid alternative to conventional methods.

  1. Provocation of coronary vasospastic angina using an isoproterenol head-up tilt test.

    Science.gov (United States)

    Hung, Ming-Jui; Wang, Chao-Hung; Cherng, Wen-Jin

    2004-01-01

    The goals of this study were to determine the value of the isoproterenol (ISO) head-up tilt (HUT) test in detecting coronary vasospastic angina and to investigate the possible mechanism responsible for coronary artery spasm. The ISO + HUT test was performed in 16 patients with coronary artery spasm documented by the intracoronary ergonovine provocation test. Patients' blood pressure and heart rate were measured at baseline, during the ISO + HUT (phase I), and during HUT after discontinuation of ISO (phase II). Patients were categorized as test-positive if they developed angina with ST-segment elevation during testing. Eight patients (50%) were test-positive (5 in phase I and 3 in phase II). Between the test-positive and test-negative groups, no significant differences were noted in the changes in blood pressure throughout the test. However, there were significant differences in the changes in heart rate from supine to 2 minutes after HUT under ISO infusion (-17 +/-22 vs 11 +/-25 beats/minute; p=0.035). In those patients with a positive result in the phase I stage, the heart rate decreased initially after tilt-up, and then significantly increased later (from 85 +/-16 to 110 +/-27 beats/minute; p=0.043), when coronary vasospasm occurred. In those patients with a positive result in the phase II stage, coronary vasospasm occurred immediately after HUT, when there was an insignificant transient increase in heart rate from the supine to the HUT position (from 85 +/-12 to 92 +/-11 beats/minute; p=0.109). The ISO + HUT test can provoke coronary vasospasm with ST-segment elevation in 50% of the patients with coronary artery spasm, when combined with an extensional protocol of HUT after discontinuation of ISO. This study suggests that the induction of coronary artery spasm during HUT testing is associated with a rapid elevation of sympathetic activity during augmented parasympathetic activity.

  2. 24 CFR 598.400 - HUD grants for planning activities.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 3 2010-04-01 2010-04-01 false HUD grants for planning activities... Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR COMMUNITY PLANNING AND DEVELOPMENT, DEPARTMENT OF... DESIGNATIONS Post-Designation Requirements § 598.400 HUD grants for planning activities. (a) HUD will award...

  3. IMPACT ASSESSMENT OF TROPICAL CYCLONE HUD HUD ON COASTAL REGION OF VISAKHAPATNAM, ANDHRA PRADESH, INDIA

    Directory of Open Access Journals (Sweden)

    G. Vivek

    2015-10-01

    Full Text Available Tropical cyclone is a rapidly rotating storm system characterized by a low pressure center, strong winds, and a spiral arrangements of thunderstorms that produce heavy rain. Tropical cyclones typically form over large bodies of relatively warm water. On 6th October 2014 Hud Hud originates from a low pressure system that formed under the influence of an upper air cyclonic circulation in the Andaman Sea. On 9th October 2014 the IMD department classified the Hud Hud as a very severe cyclonic storm on IMD scale and category 4 on Staffir-Simpson scale. The cyclone hit the coast of Visakhapatnam on 12th October 2014 at wind speed of 175 km/h which caused extensive damage to the city and the neighbouring districts. The damage caused by Cyclone Hud Hud not only changed the landscape of the port city, but also made it the first city in the country to be directly hit by a cyclone since 1891 as per the records of the IMD. The remote sensing technique used here is NDVI. NDVI will separate vegetation and non-vegetation part. The NDVI will be classified in ERDAS and calculated the area using ARCGIS. The satellite data of 4th October 2014 show s before the cyclone, 14th October 2014 shows after the cyclone and 7th December 2014 after two month of cyclone.

  4. Toward chronocardiologic and chronomic insights: dynamics of heart rate associated with head-up tilting.

    Science.gov (United States)

    Kubo, Yutaka; Murakami, Shogo; Matsuoka, Osamu; Hotta, Norihiro; Oinuma, Sachiko; Shinagawa, Makoto; Omori, Keigi; Nunoda, Shinichi; Otsuka, Kuniaki; Ohkawa, Shin-ichiro; Cornélissen, Germaine; Halberg, Franz

    2003-10-01

    As a step towards investigating the chronome (i.e. the inferential endpoints of chaos, trends and rhythms) of heart rate (HR) variability (HRV), we investigated whether the fractality or complexity of HRV is affected by a head-up tilting (HUT) test in the morning after an overnight fast. Spectral and non-linear analyses of HR were performed on data gathered during an 80 degrees passive HUT test in 15 men and 28 women 32.8 +/- 11.5 years of age. The non-linear endpoints included the scaling exponents alpha1 (11 beats), which indicate fractal properties, calculated with detrended fluctuation analysis, and the approximate entropy (ApEn), a measure of overall complexity. Passive HUT increased alpha1 (from 0.986 +/- 0.217 to 1.370 +/- 0.185; P = 0.0001), but did not alter alpha2 (from 0.925 +/- 0.110 to 0.958 +/- 0.130; P = 0.19). A slight but statistically significant decrease in ApEn was seen during HUT (from 1.114 +/- 0.131 to 1.013 +/- 0.197; P = 0.002). In the tilt-up position, there was a statistically significant negative correlation between alpha1 and ApEn (r = -0.490; P tilt-up position, alpha1 was correlated weakly with HF (r = -0.343 and r = -0.322, respectively), and strongly with LF/HF (r = 0.557 and r = 0.795), respectively. There was also a negative correlation between ApEn and LF/HF (r = -0.406 and r = -0.357, respectively). alpha2 did not correlate with any spectral or non-linear measures of HRV. Short-term fractal properties and complexity of HR were lowered with orthostatic stress. Alterations of the autonomic activities could be partly responsible for these changes and await extension of such studies to assess the broad spectral element of HRV, that includes, with components of approximately 3.6 and approximately 10.5 s, cycles with very much lower frequencies, along the scales of hours and even years, that critically modulate the mislabeled (only relatively high- and low-frequency) components in the range of seconds or minutes.

  5. Head-up tilt test with clomipramine challenge in vasovagal syndrome--a new tilt testing protocol.

    Science.gov (United States)

    Theodorakis, G N; Livanis, E G; Leftheriotis, D; Flevari, P; Markianos, M; Kremastinos, D Th

    2003-04-01

    The aim of the study was to randomly compare clomipramine, used as a challenge-agent during head-up tilt test, with isoproterenol, used in the conventional test, in patients with vasovagal syndrome. The serotonergic re-uptake inhibitor clomipramine was infused (5mg in 5min) at the start of head-up tilt test (Clom-HUT) in 126 patients (mean age 41+/-16 years) with positive history of recurrent neurocardiogenic syncope, and in 54 healthy control subjects (mean age 46+/-15 years). All subjects had also been tested with a conventional 60 degrees head-up tilt test (Con-HUT) for 30 min and, if negative, isoproterenol infusion was performed at the end of the test. The two tests were performed in a random order with a 24-h interval between them. Fifty-two of the 126 patients (41%) and two of the 54 controls had a positive response to Con-HUT. In the Clom-HUT the proportion of patients who experienced a positive response increased to 83% (105 subjects), while this happened only to four control subjects. The predictive accuracy of Clom-HUT increased compared to Con-HUT from 58 to 86%, respectively. The results indicate an increased responsiveness of central serotonergic neural system in subjects with vasovagal syndrome, the activation of which leads to sympathetic withdrawal. The use of clomipramine infusion during tilt test seems to improve considerably its diagnostic value.

  6. Communications---Rand-HUD Fire Models

    OpenAIRE

    Rodrick Wallace; Deborah Wallace

    1980-01-01

    The March, 1978 issue of Management Science carried a paper by Jan M. Chaiken titled "Transfer of Emergency Service Deployment Models to Operating Agencies" which purported to describe the successful implementation of, among other things, fire service management models developed by the Rand Corporation for the Office of Policy Development and Research of the U.S. Department of Housing and Urban Development (HUD). The appearance of this paper at such a late date raises serious questions of pro...

  7. Methods and apparatus for transparent display using scattering nanoparticles

    Science.gov (United States)

    Hsu, Chia Wei; Qiu, Wenjun; Zhen, Bo; Shapira, Ofer; Soljacic, Marin

    2016-05-10

    Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.

  8. Methods and apparatus for transparent display using scattering nanoparticles

    Energy Technology Data Exchange (ETDEWEB)

    Hsu, Chia Wei; Qiu, Wenjun; Zhen, Bo; Shapira, Ofer; Soljacic, Marin

    2017-06-14

    Transparent displays enable many useful applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.

  9. 24 CFR 401.201 - How does HUD select PAEs?

    Science.gov (United States)

    2010-04-01

    ... (MARK-TO-MARKET) Participating Administrative Entity (PAE) and Portfolio Restructuring Agreement (PRA.... After the priority period expires, HUD will consider other eligible entities as PAEs for jurisdictions...

  10. Provocation of neurocardiogenic syncope by clomipramine administration during the head-up tilt test in vasovagal syndrome.

    Science.gov (United States)

    Theodorakis, G N; Markianos, M; Zarvalis, E; Livanis, E G; Flevari, P; Kremastinos, D T

    2000-07-01

    We sought to test the hypothesis that activation of the serotonergic system in patients with vasovagal syndrome during the head-up tilt test provokes syncope. Central serotonergic activation participates in the pathogenesis of neurocardiogenic syncope. Drugs increasing serotonin (5-HT) in the central nervous system have not been tested as drug challenges during the head-up tilt test with clomipramine (Clom-HUT). The serotonergic re-uptake inhibitor clomipramine was infused (5 mg in 5 min) at the start of Clom-HUT in 55 patients (mean age 40 +/- 17 years) with a positive history of recurrent neurocardiogenic syncope and in 22 healthy control subjects (mean age 46 +/- 15 years). Blood samples were taken at 0, 5, 10 and 20 min for estimation of plasma prolactin and cortisol as neuroendocrine indicators of central serotonergic responsivity. All subjects had been previously tested with a basic 60 degrees head-up tilt test (B-HUT) for 30 min, and if negative, isoproterenol infusion was given at the end of the test. Twenty-nine (53%) of the 55 patients and none of the 22 control subjects had a positive result in the B-HUT. With Clom-HUT, the proportion of patients who experienced a positive response increased to 80% (n = 44), although this happened to only one control subject. Prolactin and cortisol plasma levels increased significantly in the positive Clom-HUT patient group only. The results indicate an increased responsivity of the central serotonergic neural system in subjects with vasovagal syndrome, the activation of which leads to sympathetic withdrawal. The use of clomipramine infusion with the tilt test seems to considerably improve its diagnostic value.

  11. Reproducibility of heart rate variability, blood pressure variability and baroreceptor sensitivity during rest and head-up tilt

    DEFF Research Database (Denmark)

    Højgaard, Michael V; Agner, Erik; Kanters, Jørgen K

    2005-01-01

    (RR) interval and finger blood pressure (Finapres) in 14 healthy individuals on three different days. The protocol was 1 h of supine rest and 1 h of 60-degree head-up tilt. Time-series of consecutive 300-s segments as well as 1024-s segments of RR intervals and systolic, diastolic and mean blood...... pressures were extracted for the assessment of day-to-day and short-term reproducibility. Power spectrum analysis (Fourier) and transfer function analysis was performed. Reproducibility was assessed using the coefficient of variation (CV). The reproducibility of the mean RR interval, mean systolic...

  12. Diagnostic value of the head-up tilt test and the R-test in patients with syncope

    Directory of Open Access Journals (Sweden)

    Debora Robba

    2006-12-01

    Full Text Available The diagnostic value of the head-up tilt test (HUTT in discovering vasovagal syndrome depends on the pre-test probability. An accurate anamnesis and clinical examination screens the patients indicated for the HUTT. In patients with unexplained syncope, the R-test is an alternative procedure to discover its cause. In our study, we evaluated the diagnostic significance of the HUTT in a group of 211 patients and of the R-test in a subgroup of 45 patients with negative HUTT results and with negative traditional Holter ECG monitoring (24 hr. (Heart International 2006; 3-4: 171-7

  13. 24 CFR 401.461 - HUD-held second mortgage.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false HUD-held second mortgage. 401.461... HOUSING AND URBAN DEVELOPMENT MULTIFAMILY HOUSING MORTGAGE AND HOUSING ASSISTANCE RESTRUCTURING PROGRAM (MARK-TO-MARKET) Restructuring Plan § 401.461 HUD-held second mortgage. (a) Amount. (1) The...

  14. 77 FR 64396 - Order of Succession for HUD Region I

    Science.gov (United States)

    2012-10-19

    ... URBAN DEVELOPMENT Order of Succession for HUD Region I AGENCY: Office of Field Policy and Management... Succession for the Boston Regional Office and its Field Offices (Region I). This Order of Succession supersedes all previous Orders of Succession for HUD Region I. DATES: Effective Date: October 9, 2012. FOR...

  15. 77 FR 64399 - Order of Succession for HUD Region V

    Science.gov (United States)

    2012-10-19

    ... URBAN DEVELOPMENT Order of Succession for HUD Region V AGENCY: Office of Field Policy and Management... Succession for the Chicago Regional Office and its Field Offices (Region V). This Order of Succession supersedes all previous Orders of Succession for HUD Region V. DATES: Effective Date: October 9, 2012. FOR...

  16. Color speckle in laser displays

    Science.gov (United States)

    Kuroda, Kazuo

    2015-07-01

    At the beginning of this century, lighting technology has been shifted from discharge lamps, fluorescent lamps and electric bulbs to solid-state lighting. Current solid-state lighting is based on the light emitting diodes (LED) technology, but the laser lighting technology is developing rapidly, such as, laser cinema projectors, laser TVs, laser head-up displays, laser head mounted displays, and laser headlamps for motor vehicles. One of the main issues of laser displays is the reduction of speckle noise1). For the monochromatic laser light, speckle is random interference pattern on the image plane (retina for human observer). For laser displays, RGB (red-green-blue) lasers form speckle patterns independently, which results in random distribution of chromaticity, called color speckle2).

  17. Dynamic changes in the QT-R-R relationship during head-up tilt test in patients with vasovagal syncope.

    Science.gov (United States)

    Mizumaki, Koichi; Fujiki, Akira; Sakabe, Masao; Nishida, Kunihiro; Sugao, Masataka; Tsuneda, Takayuki; Nagasawa, Hidehiko; Inoue, Hiroshi

    2005-01-01

    QT interval is influenced by preceding R-R intervals and autonomic nervous tone. Changes in QT intervals during vasovagal reflex might reflect autonomic modulation of ventricular repolarization; however, this issue has not been fully elucidated. This study aimed to evaluate dynamic response of QT interval to transient changes in R-R interval during vasovagal syncope (VVS) induced by head-up tilt test. Eighteen patients with VVS and 18 age-and sex-matched controls were studied. All patients with VVS had a positive mixed-type response to head-up tilt and all controls had a negative response. CM5-lead digital electrocardiogram (ECG) was recorded and QT intervals were analyzed using Holter ECG analyzer. Using scatter plots of consecutive QT and the preceding R-R intervals, QT-R-R relations during tilt-up and tilt-back or during vasovagal reflex were independently fitted to an exponential curve: QT (second) = A + B x exp[k x R-R (second)]. During the tilt-up, A, B, and k did not differ between patients with VVS and controls. During the tilt back, k showed equivalent positive value compared to the tilt-up (4.1 +/- 1.3 vs -4.6 +/- 0.9) in controls. However, k remained negative (-1.3 +/- 1.5) during vasovagal reflex in patients with VVS. In six patients, in whom metoprolol was effective in eliminating VVS, QT-R-R relationship during the tilt-back became similar to that in controls. In patients with VVS, hysteresis of the QT-R-R relation is similarly shown during tilt-up as in controls, whereas this hysteresis is no longer evident and failure of QT prolongation is observed during VVS.

  18. 24 CFR 15.105 - How will HUD process my request?

    Science.gov (United States)

    2010-04-01

    ... Urban Development PUBLIC ACCESS TO HUD RECORDS UNDER THE FREEDOM OF INFORMATION ACT AND TESTIMONY AND PRODUCTION OF INFORMATION BY HUD EMPLOYEES FOIA Disclosure of Information § 15.105 How will HUD process my... which they are received. (2) For requests that have been sent to the wrong office, HUD will assign the...

  19. 24 CFR 266.25 - Limitation on HUD insurance liability.

    Science.gov (United States)

    2010-04-01

    ... party to a risk-sharing agreement with HUD with respect to the rights, benefits, and obligations of the... AUTHORITIES HOUSING FINANCE AGENCY RISK-SHARING PROGRAM FOR INSURED AFFORDABLE MULTIFAMILY PROJECT LOANS...

  20. Which is preferable for orthostatic hypotension diagnosis in older adults: active standing test or head-up tilt table test?

    Directory of Open Access Journals (Sweden)

    Aydin AE

    2017-01-01

    Full Text Available Ali Ekrem Aydin,1 Pinar Soysal,2 Ahmet Turan Isik1 1Center for Aging Brain and Dementia, Department of Geriatric Medicine, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey; 2Kayseri Education and Research Hospital, Geriatric Center, Kayseri, Turkey Background: Correct evaluation of orthostatic hypotension (OH is crucial in geriatric practice, since OH is associated with mortality and morbidity. The study aimed to determine the most appropriate method for measuring blood pressure in transition from supine to upright position in order to diagnose OH in older adults.Methods: Active standing test (AST and head-up tilt table (HUT test as well as comprehensive geriatric assessment (CGA, including mini-mental state examination or the cognitive state test, mini-nutritional assessment, basic and instrumental activities of daily living, and Tinetti performance-oriented mobility assessment indexes, were performed in 290 geriatric patients.Results: The prevalence of OH during HUT and AST was 19% and 37%, respectively. In patients with OH during HUT, the frequency of dementia and recurrent falls were higher (P<0.05; on the other hand, the levels of serum vitamin D and albumin and estimated glomerular filtration rate were lower (P<0.05. However, all these parameters for OH during AST were not significant (P>0.05. Comparison of the groups according to CGA measurements revealed significant differences in terms of cognition, nutritional status, activities of daily life, and balance function in patients with OH only during HUT (P<0.05, but not during AST (P>0.05. The sensitivity, specificity, positive predictive value, and negative predictive values of AST were 49.0%, 65.5%, 25.0%, and 84.6% respectively, according to HUT.Conclusion: The results suggest that orthostatic blood pressure changes determined by HUT might be of higher clinical significance than that by AST in older adults. It might be important that the evaluation of OH by HUT should be

  1. Which is preferable for orthostatic hypotension diagnosis in older adults: active standing test or head-up tilt table test?

    Science.gov (United States)

    Aydin, Ali Ekrem; Soysal, Pinar; Isik, Ahmet Turan

    2017-01-01

    Correct evaluation of orthostatic hypotension (OH) is crucial in geriatric practice, since OH is associated with mortality and morbidity. The study aimed to determine the most appropriate method for measuring blood pressure in transition from supine to upright position in order to diagnose OH in older adults. Active standing test (AST) and head-up tilt table (HUT) test as well as comprehensive geriatric assessment (CGA), including mini-mental state examination or the cognitive state test, mini-nutritional assessment, basic and instrumental activities of daily living, and Tinetti performance-oriented mobility assessment indexes, were performed in 290 geriatric patients. The prevalence of OH during HUT and AST was 19% and 37%, respectively. In patients with OH during HUT, the frequency of dementia and recurrent falls were higher (P0.05). Comparison of the groups according to CGA measurements revealed significant differences in terms of cognition, nutritional status, activities of daily life, and balance function in patients with OH only during HUT (P0.05). The sensitivity, specificity, positive predictive value, and negative predictive values of AST were 49.0%, 65.5%, 25.0%, and 84.6% respectively, according to HUT. The results suggest that orthostatic blood pressure changes determined by HUT might be of higher clinical significance than that by AST in older adults. It might be important that the evaluation of OH by HUT should be included in daily geriatric practice.

  2. 75 FR 33323 - Notice of Availability: Notice of HUD's Fiscal Year (FY) 2010 Notice of Funding Availability...

    Science.gov (United States)

    2010-06-11

    ... available on the HUD Web site at http://portal.hud.gov/portal/page/portal/HUD/program_offices/administration... availability on its Web site of its FY2010 Notice of Funding Availability (NOFA) Policy Requirements and.... Detailed information on HUD's Strategic Plan for FY2010-2015 is available at: http://portal.hud.gov/portal...

  3. Differences in autonomic balance in patients with cardioinhibitory and vasodepressor type of reflex syncope during head-up tilt test and active standing

    DEFF Research Database (Denmark)

    Holmegard, Haya N; Benn, Marianne; Kaijer, Michelle

    2012-01-01

    To improve the pathophysiological understanding of cardioinhibitory and vasodepressor reflex syncope, by evaluating orthostatic effects on electrical and hemodynamic variables. To unravel the pathogeneses further, we studied these effects during both the passive head-up tilt test and the active...... standing test....

  4. A heads-up no-limit Texas Hold'em poker player: Discretized betting models and automatically generated equilibrium-finding programs

    DEFF Research Database (Denmark)

    Gilpin, Andrew G.; Sandholm, Tuomas; Sørensen, Troels Bjerre

    2008-01-01

    We present Tartanian, a game theory-based player for heads-up no-limit Texas Hold'em poker. Tartanian is built from three components. First, to deal with the virtually infinite strategy space of no-limit poker, we develop a discretized betting model designed to capture the most important strategic...

  5. Distinctive Steady-State Heart Rate and Blood Pressure Responses to Passive Robotic Leg Exercise and Functional Electrical Stimulation During Head-up Tilt

    Directory of Open Access Journals (Sweden)

    Amirehsan Sarabadani Tafreshi

    2016-12-01

    Full Text Available Tilt tables enable early mobilization of patients by providing verticalization. But there is a high risk of orthostatic hypotension provoked by verticalization, especially after neurological diseases such as spinal cord injury. Robot-assisted tilt tables might be an alternative as they add passive robotic leg exercise (PE that can be enhanced with functional electrical stimulation (FES to the verticalization, thus reducing the risk of orthostatic hypotension. We hypothesized that the influence of PE on the cardiovascular system during verticalization depends on the verticalization angle, and FES strengthens the PE influence. To test our hypotheses, we investigated the PE effects on the cardiovascular parameters heart rate (HR, and systolic and diastolic blood pressures (sBP, dBP at different angles of verticalization in a healthy population. Ten healthy subjects on a robot-assisted tilt table underwent four different study protocols while HR, sBP and dBP were measured: (1 head-up tilt to 60° and 71° without PE; (2 PE at 20°, 40°, and 60° of head-up tilt; (3 PE while constant FES intensity was applied to the leg muscles, at 20°, 40°, and 60° of head-up tilt; (4 PE with variation of the applied FES intensity at 0°, 20°, 40°, and 60° of head-up tilt. Linear mixed models were used to model changes in HR, sBP, and dBP responses. The models show that: (1 head-up tilt alone resulted in statistically significant increases in HR and dBP, but no change in sBP. (2 PE during head-up tilt resulted in statistically significant changes in HR, sBP, and dBP, but not at each angle and not always in the same direction (i.e., increase or decrease of cardiovascular parameters. Neither adding (3 FES at constant intensity to PE nor (4 variation of FES intensity during PE had any statistically significant effects on the cardiovascular parameters.The effect of PE on the cardiovascular system during head-up tilt is strongly dependent on the verticalization

  6. 78 FR 25290 - Notice of Proposed Information Collection: Comment Request; HUD Standard Grant Application Forms...

    Science.gov (United States)

    2013-04-30

    ... of Strategic Planning and Management, HUD. ACTION: Notice. SUMMARY: The proposed information... Morillon, Director, Office of Strategic Planning and Management, Grants Management and Oversight. BILLING... URBAN DEVELOPMENT Notice of Proposed Information Collection: Comment Request; HUD Standard Grant...

  7. Comparison of Indiana High School Football Injury Rates by Inclusion of the USA Football "Heads Up Football" Player Safety Coach.

    Science.gov (United States)

    Kerr, Zachary Y; Dalton, Sara L; Roos, Karen G; Djoko, Aristarque; Phelps, Jennifer; Dompier, Thomas P

    2016-05-01

    In Indiana, high school football coaches are required to complete a coaching education course with material related to concussion awareness, equipment fitting, heat emergency preparedness, and proper technique. Some high schools have also opted to implement a player safety coach (PSC). The PSC, an integral component of USA Football's Heads Up Football (HUF) program, is a coach whose primary responsibility is to ensure that other coaches are implementing proper tackling and blocking techniques alongside other components of the HUF program. To compare injury rates in Indiana high school football teams by their usage of a PSC or online coaching education only. Cohort study; Level of evidence, 2. Athletic trainers (ATs) evaluated and tracked injuries at each practice and game during the 2015 high school football season. Players were drawn from 6 teams in Indiana. The PSC group, which used the PSC component, was comprised of 204 players from 3 teams. The "education only" group (EDU), which utilized coaching education only, was composed of 186 players from 3 teams. Injury rates and injury rate ratios (IRRs) were reported with 95% confidence intervals (CIs). During 25,938 athlete-exposures (AEs), a total of 149 injuries were reported, of which 54 (36.2%) and 95 (63.8%) originated from the PSC and EDU groups, respectively. The practice injury rate was lower in the PSC group than the EDU group (2.99 vs 4.83/1000 AEs; IRR, 0.62; 95% CI, 0.40-0.95). The game injury rate was also lower in the PSC group than the EDU group (11.37 vs 26.37/1000 AEs; IRR, 0.43; 95% CI, 0.25-0.74). When restricted to concussions only, the rate was lower in the PSC group (0.09 vs 0.73/1000 AEs; IRR, 0.12; 95% CI, 0.01-0.94), although only 1 concussion was reported in the PSC group. No differences were found in game concussion rates (0.60 vs 4.39/1000 AEs; IRR, 0.14; 95% CI, 0.02-1.11). Findings support the PSC as an effective method of injury mitigation in high school football. Future research

  8. Low-cost replicable plastic HUD combiner element

    Science.gov (United States)

    Kress, Bernard; Raulot, Victorien; St. Hilaire, Pierre; Meyrueis, Patrick

    2009-05-01

    We present a novel technique to fabricate low cost mass replicable plastic HUDs for the transportation industry. HUD are implemented in numerous sectors today (in avionics, automobile, military, machinery,...). Typical implementations include an optical combiner which produces the desired virtual image while leaving the field mostly unaffected by the optics. Such combiners optics are usually implemented as cumbersome catadioptric devices in automobile, dichroic coated curved plates, or expensive volume holograms in commercial and military aviation. We propose a novel way to design, model and fabricate combiner masters which can be replicated in mass by UV casting in plastic. We review the various design techniques required for such elements and the novel mastering technology.

  9. Auditory Display

    DEFF Research Database (Denmark)

    volume. The conference's topics include auditory exploration of data via sonification and audification; real time monitoring of multivariate date; sound in immersive interfaces and teleoperation; perceptual issues in auditory display; sound in generalized computer interfaces; technologies supporting...... auditory display creation; data handling for auditory display systems; applications of auditory display....

  10. 76 FR 24041 - Notice of Proposed Information Collection: Comment Request; HUD Housing Counseling Program-Agency...

    Science.gov (United States)

    2011-04-29

    ... Counseling Agencies and maintains a toll free housing counseling hotline, performance reviews help HUD ensure... URBAN DEVELOPMENT Notice of Proposed Information Collection: Comment Request; HUD Housing Counseling... information: Title of Proposal: HUD Housing Counseling Program--Agency Performance Review. OMB Control Number...

  11. 78 FR 75215 - Qualified Mortgage Definition for HUD Insured and Guaranteed Single Family Mortgages

    Science.gov (United States)

    2013-12-11

    ... CFR Parts 201, 203, 1005, and 1007 RIN 2502-AJ18 Qualified Mortgage Definition for HUD Insured and Guaranteed Single Family Mortgages AGENCY: Office of Secretary, HUD. ACTION: Final rule. SUMMARY: Through this final rule, HUD establishes a definition of ``qualified mortgage'' for the single family...

  12. 48 CFR 2453.227-70 - Form HUD-770, Report of Inventions and Subcontracts.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Form HUD-770, Report of Inventions and Subcontracts. 2453.227-70 Section 2453.227-70 Federal Acquisition Regulations System... HUD-770, Report of Inventions and Subcontracts. As prescribed in 2427.305-2, form HUD-770 shall be...

  13. 78 FR 16279 - HUD Healthcare Facility Documents: Notice Announcing Final Approved Documents and Assignment of...

    Science.gov (United States)

    2013-03-14

    ... . This notice published today announces that HUD has completed the notice and comment processes required... its assets to its landlord's loan liabilities. The commenter stated that these issues would be most... participate in HUD programs as a result. However, HUD has determined that, at this time, the need to establish...

  14. 24 CFR 985.3 - Indicators, HUD verification methods and ratings.

    Science.gov (United States)

    2010-04-01

    ..., HUD verification methods and ratings. This section states the performance indicators that are used to assess PHA Section 8 management. HUD will use the verification method identified for each indicator in... and will assign a rating for each indicator as shown. If the HUD verification method for the indicator...

  15. 24 CFR 58.72 - HUD or State actions on RROFs and certifications.

    Science.gov (United States)

    2010-04-01

    ... and Urban Development ENVIRONMENTAL REVIEW PROCEDURES FOR ENTITIES ASSUMING HUD ENVIRONMENTAL RESPONSIBILITIES Release of Funds for Particular Projects § 58.72 HUD or State actions on RROFs and certifications. The actions which HUD (or a State) may take with respect to a recipient's environmental certification...

  16. 76 FR 62434 - HUD Draft Environmental Justice Strategy

    Science.gov (United States)

    2011-10-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT HUD Draft Environmental Justice Strategy AGENCY: Office of the Sustainable Housing and... Sustainable Housing and Communities, Department of Housing and Urban Development, 451 7th Street, SW., Room...

  17. 75 FR 69363 - HUD Multifamily Rental Projects: Regulatory Revisions

    Science.gov (United States)

    2010-11-12

    ...; ] DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT 24 CFR Parts 200 and 207 RIN 2502-AI95 HUD Multifamily Rental... Refinancing of Existing Multifamily Housing Projects is 14.155. List of Subjects 24 CFR Part 200... aggregate monthly payment. PART 207--MULTIFAMILY HOUSING MORTGAGE INSURANCE 4. The authority citation for...

  18. 76 FR 24363 - HUD Multifamily Rental Projects: Regulatory Revisions

    Science.gov (United States)

    2011-05-02

    ...-1274 (this is not a toll-free number). Persons with hearing or speech impairments may access this... mortgagor must be a single asset owner. The amendments to this definition also included removing provisions... final rule: HUD modified the definition of ``eligible mortgagor'' to allow a non-single asset entity to...

  19. 24 CFR 1000.336 - How may an Indian tribe, TDHE, or HUD challenge data or appeal HUD formula determinations?

    Science.gov (United States)

    2010-04-01

    ... formula determination in writing, setting forth the reasons for its decision. Pursuant to HUD's action... reasons for the decision. (4) Pursuant to resolution of the dispute: (i) If the Indian tribe or TDHE... determinations regarding Allowable Expense Level (AEL) and the inflation factor. (c) The challenge and the...

  20. 76 FR 45282 - Announcement of Funding Awards for the HUD-Veterans Affairs Supportive Housing (HUD-VASH) Program...

    Science.gov (United States)

    2011-07-28

    ... Street S Tacoma WA 98444 $179,013 25 SPOKANE HOUSING AUTHORITY 55 W Mission Avenue........ Spokane WA...-VASH) Program for Fiscal Years (FY) 2010 AGENCY: Office of Public and Indian Housing, HUD. ACTION..., Office of Public and Indian Housing, Department of Housing and Urban Development, 451 7th Street, SW...

  1. Head-up tilt and hyperventilation produce similar changes in cerebral oxygenation and blood volume: an observational comparison study using frequency-domain near-infrared spectroscopy.

    Science.gov (United States)

    Meng, Lingzhong; Mantulin, William W; Alexander, Brenton S; Cerussi, Albert E; Tromberg, Bruce J; Yu, Zhaoxia; Laning, Kathleen; Kain, Zeev N; Cannesson, Maxime; Gelb, Adrian W

    2012-04-01

    During anesthesia, maneuvers which cause the least disturbance of cerebral oxygenation with the greatest decrease in intracranial pressure would be most beneficial to patients with intracranial hypertension. Both head-up tilt (HUT) and hyperventilation are used to decrease brain bulk, and both may be associated with decreases in cerebral oxygenation. In this observational study, our null hypothesis was that the impact of HUT and hyperventilation on cerebral tissue oxygen saturation (SctO2) and cerebral blood volume (CBV) are comparable. Surgical patients without neurological disease were anesthetized with propofol-remifentanil. Before the start of surgery, frequency-domain near-infrared spectroscopy was used to measure SctO2 and CBV at the supine position, at the 30° head-up and head-down positions, as well as during hypoventilation and hyperventilation. Thirty-three patients were studied. Both HUT and hyperventilation induced small decreases in SctO2 [3.5 (2.6)%; P hyperventilation to an end-tidal carbon dioxide (ETCO2) of 25 mmHg (from 45 mmHg) in both SctO2 (P = 0.3) and CBV (P = 0.4). The small but statistically significant decreases in both SctO2 and CBV caused by HUT and hyperventilation are comparable. There was no correlation between the decreases in SctO2 and CBV and the decreases in blood pressure and cardiac output during head-up and head-down tilts. However, the decreases in both SctO2 and CBV correlate with the decreases in ETCO2 during ventilation adjustment.

  2. SalHUD--A Graphical Interface to Public Health Data in Puerto Rico.

    Science.gov (United States)

    Ortiz-Zuazaga, Humberto G; Arce-Corretjer, Roberto; Solá-Sloan, Juan M; Conde, José G

    2015-12-22

    This paper describes SalHUD, a prototype web-based application for visualizing health data from Puerto Rico. Our initial focus was to provide interactive maps displaying years of potential life lost (YPLL). The public-use mortality file for year 2008 was downloaded from the Puerto Rico Institute of Statistics website. Data was processed with R, Python and EpiInfo to calculate years of potential life lost for the leading causes of death on each of the 78 municipalities in the island. Death records were classified according to ICD-10 codes. YPLL for each municipality was integrated into AtlasPR, a D3 Javascript map library. Additional Javascript, HTML and CSS programing was required to display maps as a web-based interface. YPLL for all municipalities are displayed on a map of Puerto Rico for each of the ten leading causes of death and for all causes combined, so users may dynamically explore the impact of premature mortality. This work is the first step in providing the general public in Puerto Rico with user-friendly, interactive, visual access to public health data that is usually published in numerical, text-based media.

  3. Composition of lipophylic extracts from Ficaria verna HUDS. flowers.

    Science.gov (United States)

    Tomczyk, Michal; Gudej, Jan

    2002-01-01

    From the flowers of pilewort--Ficaria verna HUDS. fractions of triterpenes and sterols were isolated by using column chromatography method (CC). The constituents were identified by using TLC, GC and GC/MS methods and by comparison of their retention times and mass spectra with the corresponding data of the authentic samples. The presence of these compounds in F. verna has been described for the first time.

  4. Advanced electronic displays and their potential in future transport aircraft

    Science.gov (United States)

    Hatfield, J. J.

    1981-01-01

    It is pointed out that electronic displays represent one of the keys to continued integration and improvement of the effectiveness of avionic systems in future transport aircraft. An employment of modern electronic display media and generation has become vital in connection with the increases in modes and functions of modern aircraft. Requirements for electronic systems of future transports are examined, and a description is provided of the tools which are available for cockpit integration, taking into account trends in information processing and presentation, trends in integrated display devices, and trends concerning input/output devices. Developments related to display media, display generation, and I/O devices are considered, giving attention to a comparison of CRT and flat-panel display technology, advanced HUD technology and multifunction controls. Integrated display formats are discussed along with integrated systems and cockpit configurations.

  5. Respostas autonômicas cardíacas à manobra de tilt em adolescentes obesos Cardiac autonomic responses to head-up tilt in obese adolescents

    Directory of Open Access Journals (Sweden)

    Antônio Fernando Brunetto

    2005-10-01

    Full Text Available INTRODUÇÃO: A obesidade está associada às alterações do sistema nervoso autônomo. Estudos prévios em adultos têm mostrado que obesos apresentam resposta autonômica cardíaca diminuída frente a mudanças posturais. Contudo, pouco se sabe sobre o impacto do sobrepeso na adolescência quanto às respostas autonômicas ao estresse postural passivo. OBJETIVO: Comparar as respostas autonômicas cardíacas à manobra de tilt entre adolescentes obesos e não-obesos mediante análise da variabilidade da freqüência cardíaca (VFC. MÉTODOS: Quatorze adolescentes obesos (15,5±1,6 anos foram comparados com 20 adolescentes não-obesos (15,4±0,8 anos. A modulação autonômica cardíaca foi estudada mediante análise da variabilidade da freqüência cardíaca de trechos de cinco minutos de registro de intervalos RR antes e depois da inclinação da mesa de tilt a 70º. A VFC foi estudada no domínio do tempo (DT e no domínio da freqüência (DF. Os componentes espectrais foram estudados na baixa (LF e na alta freqüência (HF e pela razão LF/HF. RESULTADOS: Adolescentes obesos demonstraram menor HF em unidades normalizadas (38,2±11.1 vs 53,9±15,5, pINTRODUCTION: Obesity is associated with alterations of the autonomic nervous system. Previous studies in adults have shown that obese individuals present a decreased cardiac autonomic response to postural challenges. However, little is known about the impact of overweight on autonomic responses to passive postural stress in adolescents. OBJECTIVE: to compare cardiac autonomic responses to the head-up tilt maneuver between obese and non-obese adolescents by analyzing heart rate variability. METHODS: Fourteen obese adolescents (15.5±1.6 years were compared with twenty non-obese subjects (15.4±0.8 years. Cardiac autonomic modulation was studied by heart rate variability (HRV analysis of 5 minute RR interval recordings before and after a 70º head-up tilt maneuver. HRV was analyzed according to

  6. 75 FR 62412 - Notice of Proposed Information Collection: Comment Request; HUD-Owned Real Estate-Good Neighbor...

    Science.gov (United States)

    2010-10-08

    ... of Proposed Information Collection: Comment Request; HUD- Owned Real Estate-Good Neighbor Next Door... following information: Title of Proposal: HUD-Owned Real Estate-Good Neighbor Next Door Program. OMB Control...

  7. 75 FR 62413 - Notice of Proposed Information Collection: Comment Request; HUD-Owned Real Estate-Dollar Home...

    Science.gov (United States)

    2010-10-08

    ... of Proposed Information Collection: Comment Request; HUD- Owned Real Estate--Dollar Home Sales... also lists the following information: Title of Proposal: HUD-Owned Real Estate--Dollar Home Sales...

  8. 24 CFR 5.233 - Mandated use of HUD's Enterprise Income Verification (EIV) System.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Mandated use of HUD's Enterprise... and Verification of Social Security Numbers and Employer Identification Numbers; Procedures for... § 5.233 Mandated use of HUD's Enterprise Income Verification (EIV) System. (a) Programs subject to...

  9. 78 FR 59890 - Qualified Mortgage Definition for HUD Insured and Guaranteed Single Family Mortgages

    Science.gov (United States)

    2013-09-30

    ... URBAN DEVELOPMENT 24 CFR Parts 201, 203, 1005, and 1007 RIN 2502-AJ18 Qualified Mortgage Definition for HUD Insured and Guaranteed Single Family Mortgages AGENCY: Office of Secretary, HUD. ACTION: Proposed... mortgages, and generally prohibits a creditor from making a residential mortgage loan unless the creditor...

  10. 77 FR 45649 - Notice of Proposed Information Collection: Comment Request Direct Endorsement Underwriter/HUD...

    Science.gov (United States)

    2012-08-01

    ...-23] Notice of Proposed Information Collection: Comment Request Direct Endorsement Underwriter/HUD.... This Notice also lists the following information: Title of Proposal: Direct Endorsement Underwriter/HUD... need for the information and proposed use: The Department requires Direct Endorsement Underwriters to...

  11. 75 FR 80517 - HUD Multifamily Rental Project Closing Documents-Revisions and Updates Notice of Information...

    Science.gov (United States)

    2010-12-22

    ... to the Office of Management and Budget (OMB) for review and approval, and assignment of OMB control.../Freddie Mac loan documents provisions proposed for adoption by HUD might be problematic. HUD has not... allowed Lenders to recoup costs in fees for due diligence related to Transfer of Physical Assets. Waste...

  12. 24 CFR 200.937 - Supplementary specific procedural requirements under HUD building product standards and...

    Science.gov (United States)

    2010-04-01

    ... requirements under HUD building product standards and certification program for plastic bathtub units, plastic... procedural requirements under HUD building product standards and certification program for plastic bathtub...) Applicable standards. (1) Plastic bathtub units, plastic shower receptors and stalls, plastic lavatories, and...

  13. 75 FR 66245 - HUD Programs: Violence Against Women Act Conforming Amendments

    Science.gov (United States)

    2010-10-27

    ... men from domestic violence and not only women. The commenter added that VAWA 2005 should cover housing... Housing and Urban Development 24 CFR Parts 5, 91, 880, et al. HUD Programs: Violence Against Women Act..., 883, 884, 886, 891, 903, 960, 966, 982, and 983 RIN 2577-AC65 HUD Programs: Violence Against Women Act...

  14. 75 FR 14609 - Notice of Submission of Proposed Information Collection to OMB; Emergency Comment Request; HUD...

    Science.gov (United States)

    2010-03-26

    ... URBAN DEVELOPMENT Notice of Submission of Proposed Information Collection to OMB; Emergency Comment Request; HUD ARRA Section 1512 Reporting AGENCY: Office of Strategic Planning and Management, HUD. ACTION... INFORMATION CONTACT: Leroy McKinney, PRA Program Manager, OCIO, Department of Housing and Urban Development...

  15. DOE-HUD Initiative on Energy Efficiency in Housing: A federal partnership. Program summary report

    Energy Technology Data Exchange (ETDEWEB)

    Brinch, J. [Energetics, Inc., Columbia, MD (United States)

    1996-06-01

    One of the primary goals of the US Department of Housing and urban Development (HUD) is the expansion of home ownership and affordable housing opportunities. Recognizing that energy efficiency is a key component in an affordable housing strategy, HUD and the US Department of Energy (DOE) created the DOE-HUD Initiative on Energy Efficiency in Housing. The DOE-HUD Initiative was designed to share the results of DOE research with housing providers throughout the nation, to reduce energy costs in federally-subsidized dwelling units and improve their affordability and comfort. This Program Summary Report provides an overview of the DOE-HUD Initiative and detailed project descriptions of the twenty-seven projects carried out with Initiative funding.

  16. 78 FR 66040 - 30-Day Notice of Proposed Information Collection: HUD-Owned Real Estate-Sales Contract and Addendums

    Science.gov (United States)

    2013-11-04

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT 30-Day Notice of Proposed Information Collection: HUD-Owned Real Estate--Sales... collection entitled HUD-Owned Real Estate-Sales Contract and Addendums (2502-0306). HUD will republish the...

  17. 76 FR 374 - Notice of Submission of Proposed Information Collection to OMB; HUD Conditional Commitment/Direct...

    Science.gov (United States)

    2011-01-04

    ... submit a copy of the completed form to HUD for endorsement as part of the case binder; to provide a copy... should be sent to: HUD Desk Officer, Office of Management and Budget, New Executive Office Building... form to HUD for ] endorsement as part of the case binder; to provide a copy to the homebuyer; and to...

  18. Heads Up: Keep Sports Safe.

    Science.gov (United States)

    Rice, Stephen G.

    1984-01-01

    Outlines standards in seven areas--staff training, facilities, athletic equipment, emergency preparedness, a central training room, athletic health care and training, and recordkeeping--for assessing school athletic programs so that potential injuries and lawsuits can be avoided. (KS)

  19. Infants with univentricular heart have reduced heart rate and blood pressure responses to side motion and altered responses to head-up tilt.

    Science.gov (United States)

    Kirjavainen, Turkka; Viskari, Suvi; Pitkänen, Olli; Jokinen, Eero

    2005-02-01

    Cardiovascular control was studied in infants with univentricular heart (UVH). Side motion tests and 45-s 45 degrees head-up tilt tests were performed in 11 control and 9 UVH infants at the age of 13 +/- 3.2 wk. In addition, heart rate (HR) reactions to spontaneous arousals and HR variability during slow-wave sleep (SWS) were determined. All UVH infants had been hypoxic for several weeks, and during the sleep study the mean arterial oxyhemoglobin saturation was 82 +/- 5%. Tests were done at night during SWS, confirmed by polysomnographic recording. Continuous beat-to-beat blood pressure (BP) was measured. In the side-motion tests, control infants consistently showed a transient increase in HR and BP. This response was markedly reduced in all of the UVH infants (P < 0.0001). In tilt tests, the UVH infants showed normal BP responses, but, although a sustained 2.0% decrease in HR was observed in the controls, the UVH infants presented with a sustained 2.6% mean HR increase (P = 0.005). The UVH infants also showed attenuated HR acceleration during spontaneous arousals (P = 0.01), but HR variability did not differ significantly from the controls. In conclusion, UVH infants with chronic hypoxia exhibit defective vestibulosympathetic pathways, as expressed by an absence of acute HR and BP reactivity to side motion. HR reactions to postural challenge and spontaneous arousal are also altered. Autonomic function abnormalities in these infants are suggested to be secondary to hypoxia.

  20. Reverse breech extraction versus the standard approach of pushing the impacted fetal head up through the vagina in caesarean section for obstructed labour: A randomised controlled trial.

    Science.gov (United States)

    Nooh, Ahmed Mohamed; Abdeldayem, Hussein Mohammed; Ben-Affan, Othman

    2017-05-01

    The objective of this study was to assess effectiveness and safety of the reverse breech extraction approach in Caesarean section for obstructed labour, and compare it with the standard approach of pushing the fetal head up through the vagina. This randomised controlled trial included 192 women. In 96, the baby was delivered by the 'reverse breech extraction approach', and in the remaining 96, by the 'standard approach'. Extension of uterine incision occurred in 18 participants (18.8%) in the reverse breech extraction approach group, and 46 (47.9%) in the standard approach group (p = .0003). Two women (2.1%) in the reverse breech extraction approach group needed blood transfusion and 11 (11.5%) in the standard approach group (p = .012). Pyrexia developed in 3 participants (3.1%) in the reverse breech extraction approach group, and 19 (19.8%) in the standard approach group (p = .0006). Wound infection occurred in 2 women (2.1%) in the reverse breech extraction approach group, and 12 (12.5%) in the standard approach group (p = .007). Apgar score vagina.

  1. Contribution of head-up tilt testing and ATP testing in assessing the mechanisms of vasovagal syndrome: preliminary results and potential therapeutic implications.

    Science.gov (United States)

    Flammang, D; Erickson, M; McCarville, S; Church, T; Hamani, D; Donal, E

    1999-05-11

    In patients with vasovagal syndrome, head-up tilt testing may reproduce symptoms generally associated with vasodepression. Recent research suggests ATP testing identifies patients with abnormal vagal cardiac inhibition. This preliminary study examined the joint contribution of both tests in identifying underlying mechanisms in the general population with vasovagal syndrome. Both tests were performed in random order during 1 session and outside of predominant sympathetic periods in 72 patients hospitalized for syncope (n=56) or presyncope (n=16) for whom no cardiac or extracardiac cause was found. For passive and isoproterenol-provocative tilt testing by standard protocol, reproduction of symptoms defined a positive test. The ATP test consisted of injecting ATP 20 mg IV at bedside, continuously monitoring ECG and blood pressure; a vagal cardiac pause >10 seconds defined a positive test. For most patients (64%), >/=1 test was positive. Of the 41 patients (57%) with a positive tilt test (either passive or provoked by isoproterenol), 32% had cardiac disease; none had significant bradycardia (vasovagal symptoms in most patients and that vagal cardiac inhibition increases with age.

  2. Habitat Use Database - Groundfish Essential Fish Habitat (EFH) Habitat Use Database (HUD)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Habitat Use Database (HUD) was specifically designed to address the need for habitat-use analyses in support of groundfish EFH, HAPCs, and fishing and nonfishing...

  3. 78 FR 4159 - Notice of Proposed Information Collection: Comment Request; Direct Endorsement Underwriter/HUD...

    Science.gov (United States)

    2013-01-18

    ... URBAN DEVELOPMENT Notice of Proposed Information Collection: Comment Request; Direct Endorsement... Direct Endorsement Underwriters to maintain responsibility for the appraisal and the ] appraised value... Endorsement Underwriter/HUD Reviewer-- Analysis of Appraisal Report. OMB Control Number, if applicable: 2502...

  4. 77 FR 57105 - Notice of Proposed Information Collection: Collection of Information From HUD Lead Hazard Control...

    Science.gov (United States)

    2012-09-17

    ... or other forms of information technology, e.g., permitting electronic submission of responses. This... Affected Public: HUD Office of Healthy Homes and Lead Hazard Control's Lead-Based Paint Hazard Control...

  5. How does the estimated phase of menstrual cycle or menopause influence the prevalence of vasovagal syncope induced by head-up tilt test.

    Science.gov (United States)

    Pietrucha, Artur Z; Jędrzejczyk-Spaho, Joanna; Konduracka, Ewa; Bzukała, Irena; Krawczyk, Krzysztof; Kruszelnicka-Kwiatkowska, Olga; Nessler, Jadwiga

    2017-01-01

    The purpose of this study was to evaluate the prevalence of syncope induced by head-up tilt test (HUTT) and the type of positive vasovagal response to the orthostatic stress in a relationship to the estimated phase of menstrual cycle (follicular phase, luteal phase) or menopause. We observed a cohort of 500 women at age 13-89 years (median of age 37.5), referred to HUTT. Phase of the menstrual cycle was determined on the basis of the usual length of menstrual cycle and the day of the cycle at the time of the study. We assumed that the length of the luteal phase is constant and it is 14 days. In premenopausal patients, the occurrence of the mixed and cardioinhibitory response was significantly more frequent in comparison to postmenopausal women (48.8 vs. 35.1% and 19.7 vs. 12.4%, respectively; p < 0.00001), while the occurrence of the vasodepressive one was significantly less frequent (7.3% vs. 28.6%; p < 0.00001) in that group of patients. Women in follicular phase presented vasodepressive response during HUTT more often than woman in the luteal phase (10.0% vs. 4.1%, p < 0.00001). Among women referred for HUTT, the prevalence of the vasovagal syndrome did not differ between those that were pre- and post-menopausal. Higher incidence of vasodepressive reaction in postmenopausal women was observed. Among the premenopausal women, the vasodepressive type of vasovagal syndrome occurred more often in follicular then in luteal phase.

  6. Short-term heart rate variability response to head-up tilt in young syncope patients and controls with respect to age.

    Science.gov (United States)

    Dickhaus, Hartmut; Maier, Christoph; Khalil, Markus; Ulmer, Herbert

    2006-01-01

    This study aims at characterizing the short-term time-courses of time- and frequency-domain heart rate variability (HRV) parameters during head-up tilt test (HUTT). Data from 44 young patients with a history of syncope and 34 age-matched controls was analysed in two age-groups related to puberty ( or =14 years), and separately for gender, by extracting minute-by-minute progression of mean RR-interval, standard deviation of RR-intervals (SDNN) and their first difference (SDSD) as well as low-frequency (LF, 0.05-0.15 Hz) energy, high-frequency (HF, 0.15-0.4 Hz) energy and the LF/HF-ratio. Time-courses were individually normalized and averaged after synchronization to the events of tilt and tilt-back/syncope. We observed remarkable age-related differences not only with respect to response to tilting but also regarding the differentiation of patients with positive HUTT from controls with negative HUTT. ROC-analysis in three regions of interest (0-2 min after tilt, 2-5 min after tilt, 5-2 min before tilt-back) revealed generally much weaker and less persistent differences in younger subjects whereas in elders the differences were clearer and often most pronounced immediately before syncope. For both age-groups, the relative change of mean RR provided best separation, however in elders in the ROI just before syncope (sensitivity: 74%, specificity 80%) in young immediately after tilt (sens.: 71%, spec.: 74%). In elder subjects, the relative reduction of SDNN 2-5 minute after tilt achieved almost the same performance (sens.: 74%, spec. 80%) as in the ROI before syncope (sens. 78%, spec. 73%), indicating the existence of rather early precursors of syncope that might help to predict the outcome of the HUTT in subjects in or after puberty.

  7. The effect of head up tilting on bioreactance cardiac output and stroke volume readings using suprasternal transcutaneous Doppler as a control in healthy young adults.

    Science.gov (United States)

    Zhang, Jie; Critchley, Lester A H; Lee, Daniel C W; Khaw, Kim S; Lee, Shara W Y

    2016-10-01

    To compare the performance of a bioreactance cardiac output (CO) monitor (NICOM) and transcutaneous Doppler (USCOM) during head up tilting (HUT). Healthy young adult subjects, age 22 ± 1 years, 7 male and 7 female, were tilted over 3-5 s from supine to 70° HUT, 30° HUT and back to supine. Positions were held for 3 min. Simultaneous readings of NICOM and USCOM were performed 30 s into each new position. Mean blood pressure (MBP), heart rate (HR), CO and stroke volume (SV), and thoracic fluid content (TFC) were recorded. Bland-Altman, percentage changes and analysis of variance for repeated measures were used for statistical analysis. Pre-tilt NICOM CO and SV readings (6.1 ± 1.0 L/min and 113 ± 25 ml) were higher than those from USCOM (4.1 ± 0.6 L/min and 77 ± 9 ml) (P effect proportional changes in SV readings of 23 ± 15 % (30° half tilt) and 44 ± 11 % (70° near full tilt), NICOM changes did not being 28 ± 10 and 33 ± 11 %. TFC decreased linearly with HUT. The NICOM does not provide linear changes in SV as predicted by physiology when patients are tilted. Furthermore there is a lack of agreement with USCOM measurements at baseline and during tilting.

  8. Universal Numeric Segmented Display

    OpenAIRE

    Azad, Md. Abul Kalam; Sharmeen, Rezwana; S. M. Kamruzzaman

    2010-01-01

    Segmentation display plays a vital role to display numerals. But in today's world matrix display is also used in displaying numerals. Because numerals has lots of curve edges which is better supported by matrix display. But as matrix display is costly and complex to implement and also needs more memory, segment display is generally used to display numerals. But as there is yet no proposed compact display architecture to display multiple language numerals at a time, this paper proposes uniform...

  9. Flight Deck Display Technologies for 4DT and Surface Equivalent Visual Operations

    Science.gov (United States)

    Prinzel, Lawrence J., III; Jones, Denis R.; Shelton, Kevin J.; Arthur, Jarvis J., III; Bailey, Randall E.; Allamandola, Angela S.; Foyle, David C.; Hooey, Becky L.

    2009-01-01

    NASA research is focused on flight deck display technologies that may significantly enhance situation awareness, enable new operating concepts, and reduce the potential for incidents/accidents for terminal area and surface operations. The display technologies include surface map, head-up, and head-worn displays; 4DT guidance algorithms; synthetic and enhanced vision technologies; and terminal maneuvering area traffic conflict detection and alerting systems. This work is critical to ensure that the flight deck interface technologies and the role of the human participants can support the full realization of the Next Generation Air Transportation System (NextGen) and its novel operating concepts.

  10. Comparison of Indiana High School Football Injury Rates by Inclusion of the USA Football “Heads Up Football” Player Safety Coach

    Science.gov (United States)

    Kerr, Zachary Y.; Dalton, Sara L.; Roos, Karen G.; Djoko, Aristarque; Phelps, Jennifer; Dompier, Thomas P.

    2016-01-01

    Background: In Indiana, high school football coaches are required to complete a coaching education course with material related to concussion awareness, equipment fitting, heat emergency preparedness, and proper technique. Some high schools have also opted to implement a player safety coach (PSC). The PSC, an integral component of USA Football’s Heads Up Football (HUF) program, is a coach whose primary responsibility is to ensure that other coaches are implementing proper tackling and blocking techniques alongside other components of the HUF program. Purpose: To compare injury rates in Indiana high school football teams by their usage of a PSC or online coaching education only. Study Design: Cohort study; Level of evidence, 2. Methods: Athletic trainers (ATs) evaluated and tracked injuries at each practice and game during the 2015 high school football season. Players were drawn from 6 teams in Indiana. The PSC group, which used the PSC component, was comprised of 204 players from 3 teams. The “education only” group (EDU), which utilized coaching education only, was composed of 186 players from 3 teams. Injury rates and injury rate ratios (IRRs) were reported with 95% confidence intervals (CIs). Results: During 25,938 athlete-exposures (AEs), a total of 149 injuries were reported, of which 54 (36.2%) and 95 (63.8%) originated from the PSC and EDU groups, respectively. The practice injury rate was lower in the PSC group than the EDU group (2.99 vs 4.83/1000 AEs; IRR, 0.62; 95% CI, 0.40-0.95). The game injury rate was also lower in the PSC group than the EDU group (11.37 vs 26.37/1000 AEs; IRR, 0.43; 95% CI, 0.25-0.74). When restricted to concussions only, the rate was lower in the PSC group (0.09 vs 0.73/1000 AEs; IRR, 0.12; 95% CI, 0.01-0.94), although only 1 concussion was reported in the PSC group. No differences were found in game concussion rates (0.60 vs 4.39/1000 AEs; IRR, 0.14; 95% CI, 0.02-1.11). Conclusion: Findings support the PSC as an effective

  11. HUD - PREDICTION OF BOUNDARY-LAYER DEVELOPMENT ON TWO-DIMENSIONAL OR AXISYMETRIC BODIES

    Science.gov (United States)

    Pinckney, S. Z.

    1994-01-01

    HUD is an integral code based on the Spaulding-Chi method for predicting boundary-layer development in laminar, transitional, and turbulent flow regions on two-dimensional or axisymetric bodies. This program was developed using integral-momentum, moment-of-momentum, and energy equations and has the capability of approximating non-equilibrium velocity profiles as well as the local surface friction in the presence of a pressure gradient. An approach was also developed for predicting heat transfer in a turbulent boundary layer in the presence of a high axial pressure gradient. Provisions are included for pressure gradients normal and lateral to the surface. The program is designed with particular emphasis on its applicability to supersonic combustion, thus, real gas flow effects were included. The resulting method permits estimation of cooling requirements for scramjet engines. Because of this capability, the HUD program has been incorporated into several scramjet cycle performance analysis codes including SCRAM (ARC-12338) and SRGULL (LEW-15093). HUD is written in machine independent FORTRAN 77 and should be portable to any computer with a valid FORTRAN compiler. On an IBM PC compatible under MS-DOS, HUD requires 145K RAM. The program is available on a 5.25 inch 360K MS-DOS diskette. HUD was developed in 1970 and last updated in 1991. IBM PC is a registered trademark of International Business Machines Corporation. MS-DOS is a registered trademark of Microsoft Corporation.

  12. 75 FR 44006 - Notice of Submission of Proposed Information Collection to OMB, HUD-Owned Real Estate-Sales...

    Science.gov (United States)

    2010-07-27

    ... URBAN DEVELOPMENT Notice of Submission of Proposed Information Collection to OMB, HUD-Owned Real Estate... Department is soliciting public comments on the subject proposal. The respondents are real estate listing...: Title of Proposal: HUD-Owned Real Estate--Sales Contract and Addendums. OMB Approval Number: 2502-0306...

  13. 76 FR 6488 - Notice of Submission of Proposed Information Collection to OMB; HUD-Owned Real Estate-Good...

    Science.gov (United States)

    2011-02-04

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT Notice of Submission of Proposed Information Collection to OMB; HUD-Owned Real Estate... responses. This Notice Also Lists the Following Information Title of Proposal: HUD-Owned Real Estate--Good...

  14. 76 FR 5819 - Notice of Submission of Proposed Information Collection to OMB; HUD-Owned Real Estate-Dollar Home...

    Science.gov (United States)

    2011-02-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT Notice of Submission of Proposed Information Collection to OMB; HUD-Owned Real Estate... following information: Title of Proposal: HUD-Owned Real Estate--Dollar Home Sales Program. OMB approval...

  15. 78 FR 64145 - 30-Day Notice of Proposed Information Collection: HUD-Owned Real Estate-Sales Contract and Addendums

    Science.gov (United States)

    2013-10-25

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT 30-Day Notice of Proposed Information Collection: HUD-Owned Real Estate--Sales... Collection: HUD-Owned Real Estate--Sales Contract and Addendums. OMB Approval Number: 2502-0306. Type of...

  16. 78 FR 79473 - 60 Day Notice of Proposed Information Collection for Public Comment: Reporting for HUD Research...

    Science.gov (United States)

    2013-12-30

    ... hours (awardees) year response Quarterly Reports 10 4 4 160 Other Reports 10 1 4 40 ] Recordkeeping 10 1... URBAN DEVELOPMENT 60 Day Notice of Proposed Information Collection for Public Comment: Reporting for HUD... agreements NOFA. HUD anticipates that approximately 8-10 organizations will be selected for cooperative...

  17. 24 CFR 15.104 - What are the time periods for HUD to respond to my request for records?

    Science.gov (United States)

    2010-04-01

    ... FREEDOM OF INFORMATION ACT AND TESTIMONY AND PRODUCTION OF INFORMATION BY HUD EMPLOYEES FOIA Disclosure of... limits generally apply? If you have met the fee requirements of § 15.110, HUD, in general, will respond... you an acknowledgment letter. (b) What time limits apply to requests made on behalf of another person...

  18. 78 FR 69704 - 60-Day Notice of Proposed Information Collection: HUD Conditional Commitment/Statement of...

    Science.gov (United States)

    2013-11-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT 60-Day Notice of Proposed Information Collection: HUD Conditional Commitment/Statement... notice is to allow for 60 days of public comment. DATES: Comments Due Date: January 21, 2014. ADDRESSES...

  19. 78 FR 78998 - 60-Day Notice of Proposed Information Collection: HUD Environmental Review Online System (HEROS)

    Science.gov (United States)

    2013-12-27

    ... URBAN DEVELOPMENT 60-Day Notice of Proposed Information Collection: HUD Environmental Review Online... parties on the proposed collection of information. The purpose of this notice is to allow for 60 days of.... 24 CFR Part 50, ``Protection and Enhancement of Environmental Quality,'' implements procedures for...

  20. 24 CFR 146.3 - Purpose of HUD's age discrimination regulation.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Purpose of HUD's age discrimination regulation. 146.3 Section 146.3 Housing and Urban Development Regulations Relating to Housing and Urban Development OFFICE OF ASSISTANT SECRETARY FOR EQUAL OPPORTUNITY, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  1. 24 CFR 941.501 - HUD review of PHA performance; sanctions.

    Science.gov (United States)

    2010-04-01

    ... fund reservation if the PHA fails to start (begin construction or rehabilitation), or complete... proposal or HUD requirements, as determined in paragraph (a)(2) of this section; (3) The PHA has failed to... (prior to soliciting bids); (ii) Complete rehabilitation drawings/specifications or work write-ups; (iii...

  2. Carex divisa Huds. en enige opmerkingen over de waarden langs in Friese Ijsselmeerkust

    NARCIS (Netherlands)

    Ploeg, v.d. D.T.E.

    1961-01-01

    In Juni 1960 vond ik in gezelschap van mijn collega’s M. Baaijens en K. Boelens op de noordelijke Makkumer Waard een Carex-soort, die ik niet herkende. Bij determinatie bleek het te zijn de in Nederland niet eerder aangetroffen Carex divisa Huds., welke determinatie bevestigd werd door de heer Th.J.

  3. 78 FR 5185 - Guidance for Industry and Food and Drug Administration Staff; Humanitarian Use Device (HUD...

    Science.gov (United States)

    2013-01-24

    ... HUD designations may be eligible for marketing approval under the Humanitarian Device Exemption (HDE) marketing pathway. This guidance document is intended to assist applicants in the preparation and submission... section 520(m) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), 21 U.S.C. 360j(m); 21 CFR 814.102...

  4. 75 FR 3543 - HUD Multifamily Rental Project Closing Documents: Proposed Revisions and Updates and Notice of...

    Science.gov (United States)

    2010-01-21

    ... the processing of pending FHA mortgage insurance applications, as well as for training on the revised... Defects; Off-Site Bond--Dual Obligee; Payment Bond; Performance Bond; Request for Approval of Advance of..., consultants, or other professionals in anticipation of such a filing (versus an absolute prohibition--HUD is...

  5. 76 FR 24507 - HUD Multifamily Rental Project Closing Documents: Notice Announcing Final Approved Documents and...

    Science.gov (United States)

    2011-05-02

    ... URBAN DEVELOPMENT HUD Multifamily Rental Project Closing Documents: Notice Announcing Final Approved Documents and Assignment of OMB Control Number AGENCY: Office of the Assistant Secretary for Housing... rental project closing documents have completed the notice and comment processes and review by the Office...

  6. 24 CFR 401.471 - HUD payment of a section 541(b) claim.

    Science.gov (United States)

    2010-04-01

    ... Development (Continued) OFFICE OF HOUSING AND OFFICE OF MULTIFAMILY HOUSING ASSISTANCE RESTRUCTURING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MULTIFAMILY HOUSING MORTGAGE AND HOUSING ASSISTANCE RESTRUCTURING... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false HUD payment of a section 541(b...

  7. 24 CFR 401.481 - Subsidy layering limitations on HUD funds.

    Science.gov (United States)

    2010-04-01

    ... Development (Continued) OFFICE OF HOUSING AND OFFICE OF MULTIFAMILY HOUSING ASSISTANCE RESTRUCTURING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MULTIFAMILY HOUSING MORTGAGE AND HOUSING ASSISTANCE RESTRUCTURING... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Subsidy layering limitations on HUD...

  8. 24 CFR 401.645 - Owner request to review HUD decision.

    Science.gov (United States)

    2010-04-01

    ... Development (Continued) OFFICE OF HOUSING AND OFFICE OF MULTIFAMILY HOUSING ASSISTANCE RESTRUCTURING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MULTIFAMILY HOUSING MORTGAGE AND HOUSING ASSISTANCE RESTRUCTURING... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Owner request to review HUD...

  9. 24 CFR 401.473 - HUD grants for rehabilitation under section 236(s) of NA.

    Science.gov (United States)

    2010-04-01

    ... Housing and Urban Development (Continued) OFFICE OF HOUSING AND OFFICE OF MULTIFAMILY HOUSING ASSISTANCE RESTRUCTURING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT MULTIFAMILY HOUSING MORTGAGE AND HOUSING ASSISTANCE... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false HUD grants for rehabilitation under...

  10. 24 CFR 1715.50 - Advertising disclaimers; subdivisions registered and effective with HUD.

    Science.gov (United States)

    2010-04-01

    ...-FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (INTERSTATE LAND SALES... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Advertising disclaimers; subdivisions registered and effective with HUD. 1715.50 Section 1715.50 Housing and Urban Development...

  11. 24 CFR 200.944 - Supplementary specific requirements under the HUD building product standards and certification...

    Science.gov (United States)

    2010-04-01

    ... excluding any floor finishes. Copies of the APA Standard may be obtained from the American Plywood... accordance with procedures set forth in APA PRP-108 Performance Standards and Policies for Structural-Use... under the HUD building product standards and certification program for plywood and other performance...

  12. 24 CFR 203.466 - Definition of delinquency and requirement for notice of delinquency to HUD.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Definition of delinquency and requirement for notice of delinquency to HUD. 203.466 Section 203.466 Housing and Urban Development... and Obligations Rehabilitation Loans § 203.466 Definition of delinquency and requirement for notice of...

  13. 24 CFR 203.330 - Definition of delinquency and requirement for notice of delinquency to HUD.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Definition of delinquency and requirement for notice of delinquency to HUD. 203.330 Section 203.330 Housing and Urban Development... and Obligations Default Under Mortgage § 203.330 Definition of delinquency and requirement for notice...

  14. 75 FR 38829 - Notice of Submission of Proposed Information Collection to OMB; Emergency Comment Request; HUD...

    Science.gov (United States)

    2010-07-06

    ... ARRA funding projects must report on the status and progress of their projects and activities with... to be completed will be asked in HUD's new electronic data collection system--Recovery Act Management... forms of information technology, e.g., permitting electronic submission of responses. Title of Proposed...

  15. 75 FR 423 - Notice of Availability: HUD Real Estate Settlement Procedures Act (RESPA) Handbook

    Science.gov (United States)

    2010-01-05

    ... Availability: HUD Real Estate Settlement Procedures Act (RESPA) Handbook AGENCY: Office of the Assistant... (Booklet) pursuant to the Real Estate Settlement Procedures Act (RESPA) requirement in 12 U.S.C. Sec. 2604. The Real Estate Settlement Procedures Act of 1974 (RESPA) (12 U.S.C. 2601-2617), establishes the...

  16. 24 CFR 970.15 - Specific criteria for HUD approval of demolition requests.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false Specific criteria for HUD approval of demolition requests. 970.15 Section 970.15 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued) OFFICE OF ASSISTANT SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT...

  17. 24 CFR 103.25 - What information should I provide to HUD?

    Science.gov (United States)

    2010-04-01

    ... HUD? You should provide us with: (a) Your name, address, and telephone numbers where you can be... description the date when the discrimination happened and why you believe the discrimination occurred because of race, color, religion, national origin, sex, disability, or the presence of children under the age...

  18. De verschillende genoomgewichten van Europese Ficaria Huds.(Ranunculaceae) duiden op acht soorten

    NARCIS (Netherlands)

    Zonneveld, Ben

    2015-01-01

    Nuclear genome size, as measured by flow cytometry with propidium iodide, was used to investigate the relationships within the genus Ficaria Huds. (Ranunculaceae). For the five diploids the genome size (2C) ranges from 12.5 pg to 23.2 pg. The three tetraploids range from 30.1 for F. chrysocephala

  19. Quantitative analysis of flavonoids in the flowers and leaves of Ficaria verna Huds.

    Science.gov (United States)

    Tomczyk, Michał; Gudej, Jan

    2003-01-01

    The quantitative determination of flavonoid compounds in flowers and leaves of Ficaria verna Huds. (Ranunculaceae) was carried out in different growing seasons of the plant, using Christ-Müller's method (Polish Pharmacopoeia, 1999) and high performance liquid chromatography (HPLC) analysis after acid hydrolysis. The flavonoid content was much higher in flowers than in leaves.

  20. 75 FR 12775 - Notice of HUD-Held Multifamily and Healthcare Loan Sale

    Science.gov (United States)

    2010-03-17

    ..., SW., Washington, DC 20410-8000; telephone number 202-708-2625, extension 3927. Hearing- or speech...-1. Freedom of Information Act Requests HUD reserves the right, in its sole and absolute discretion... disclose pursuant to the Freedom of Information Act and all regulations promulgated thereunder. Scope of...

  1. Enige omperkingen over Senecio aquaticus huds., S. barbaraeifolius Krocker en S. erraticus Bertol

    NARCIS (Netherlands)

    Bakker, D.

    1957-01-01

    Tot voor kort werd in do Nederlandse flora’s naast S. aquaticus Huds. tevens S. erraticus Bertol. vermeld. De eerste soort wordt bij ons vrij algemeen aangetroffen op moerassige terreinen en in vochtige graslanden, terwijl de tweede zeer zeldzaam zou zijn op moerassige plaatsen en aan waterkanten.

  2. Invisible Display in Aluminum

    DEFF Research Database (Denmark)

    Prichystal, Jan Phuklin; Hansen, Hans Nørgaard; Bladt, Henrik Henriksen

    2005-01-01

    for an integrated display in a metal surface is often ruled by design and functionality of a product. The integration of displays in metal surfaces requires metal removal in order to clear the area of the display to some extent. The idea behind an invisible display in Aluminum concerns the processing of a metal...

  3. Handbook of display technology

    CERN Document Server

    Castellano, Joseph A

    1992-01-01

    This book presents a comprehensive review of technical and commercial aspects of display technology. It provides design engineers with the information needed to select proper technology for new products. The book focuses on flat, thin displays such as light-emitting diodes, plasma display panels, and liquid crystal displays, but it also includes material on cathode ray tubes. Displays include a large number of products from televisions, auto dashboards, radios, and household appliances, to gasoline pumps, heart monitors, microwave ovens, and more.For more information on display tech

  4. Enhanced/Synthetic Vision Systems - Human factors research and implications for future systems

    Science.gov (United States)

    Foyle, David C.; Ahumada, Albert J.; Larimer, James; Sweet, Barbara T.

    1992-01-01

    This paper reviews recent human factors research studies conducted in the Aerospace Human Factors Research Division at NASA Ames Research Center related to the development and usage of Enhanced or Synthetic Vision Systems. Research discussed includes studies of field of view (FOV), representational differences of infrared (IR) imagery, head-up display (HUD) symbology, HUD advanced concept designs, sensor fusion, and sensor/database fusion and evaluation. Implications for the design and usage of Enhanced or Synthetic Vision Systems are discussed.

  5. 76 FR 35460 - Notice of Web Availability: Notice of Funding Availability (NOFA) for HUD's Fiscal Year (FY) 2011...

    Science.gov (United States)

    2011-06-17

    ... Information Center at 800-HUD- 8929 (toll free). Persons with hearing or speech impairments may access these... purchase of facilities to provide early childhood education, adult education, and/or job training programs...

  6. 75 FR 63848 - Notice of Availability: Notice of Funding Availability (NOFA) for HUD's Fiscal Year (FY) 2010...

    Science.gov (United States)

    2010-10-18

    ... NOFA Information Center at 800-HUD-8929 (toll free). Persons with hearing or speech impairments may... education, adult education, and job training programs for public housing residents based on an identified...

  7. Lunar Sample Display Locations

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA provides a number of lunar samples for display at museums, planetariums, and scientific expositions around the world. Lunar displays are open to the public....

  8. A Compressive Superresolution Display

    KAUST Repository

    Heide, Felix

    2014-06-22

    In this paper, we introduce a new compressive display architecture for superresolution image presentation that exploits co-design of the optical device configuration and compressive computation. Our display allows for superresolution, HDR, or glasses-free 3D presentation.

  9. A new locality of orchid Orchis purpurea Huds. in Cieszyn Foothills (Czech Republic)

    OpenAIRE

    Beczała Tomasz; Chmura Damian; Jonderko Tomasz

    2016-01-01

    Orchis purpurea Huds. is protected species both in the Czech Republic and Poland. In 2014 a new locality was found in Kojkovice (district Třinec) in the Cieszyn Foothils near border with Poland. The only one blooming individual was observed in 2014 and 2015 but it was accompanied by other 6 orchid species, that were much more abundant, as: Orchis pallens, Orchis mascula subsp. signifera, Listera ovata, Platanthera bifolia, Cephalanthera damasonium, Neottia nidus-avis. The Kojkovice forest des...

  10. Ficaria verna Huds. extracts and their β-cyclodextrin supramolecular systems

    OpenAIRE

    Hădărugă Nicoleta G

    2012-01-01

    Abstract Background Obtaining new pharmaceutical materials with enhanced properties by using natural compounds and environment-friendly methods is a continuous goal for scientists. Ficaria verna Huds. is a widespread perennial plant with applications in the treat of haemorrhoids and to cure piles; it has also anti-inflammatory, astringent, and antibiotic properties. The goal of the present study is the obtaining and characterization of new F. verna extract/β-cyclodextrin complexes by using on...

  11. DOE-HUD initiative on energy efficiency in housing: A federal partnership

    Energy Technology Data Exchange (ETDEWEB)

    Brinch, J. [Energetics, Inc., Columbia, MD (United States); Ternes, M. [Oak Ridge National Lab., TN (United States); Myers, M. [USDOE, Washington, DC (United States)

    1996-07-01

    A five-year initiative between the US Department of Energy (DOE) and the US Department of Housing and Urban Development (HUD) demonstrated the feasibility of improving the energy efficiency of publicly-assisted housing. Twenty-seven projects and activities undertaken during 1990--95 involved research and field demonstrations, institutional and administrative changes to HUD policies and procedures, innovative financing and leveraging of federal dollars with non-federal money, and education, training, and technical assistance. With most of the 27 projects and activities completed, the two departments have initiated a five-year deployment effort, the DOE-Energy Partnerships for Affordable Homes, to achieve energy and water savings in public and assisted housing on a large scale throughout the country. A Clearinghouse for Energy Efficiency in Public and Assisted Housing managed by the National Center for Appropriate Technology (NCAT), will offer hands-on energy assistance to housing providers to complement DOE`s assistance. This paper presents the findings of the DOE-HUD Initiative, with primary attention paid to those projects which successfully integrated energy efficiency into private and public single and multifamily housing. The paper includes examples of the publications, case-study reports, exhibits and videotapes developed during the course of the Initiative. Information on the new DOE Energy Partnerships and on the NCAT Clearinghouse is also presented. New Partnership projects with the Atlanta and Chicago Housing Authorities describe the technical assistance envisioned under the Partnership.

  12. Tolerance to the neuron-specific paraneoplastic HuD antigen.

    Directory of Open Access Journals (Sweden)

    Ilana DeLuca

    2009-06-01

    Full Text Available Experiments dating back to the 1940's have led to the hypothesis that the brain is an immunologically privileged site, shielding its antigens from immune recognition. The paraneoplastic Hu syndrome provides a powerful paradigm for addressing this hypothesis; it is believed to develop because small cell lung cancers (SCLC express the neuron-specific Hu protein. This leads to an Hu-specific tumor immune response that can develop into an autoimmune attack against neurons, presumably when immune privilege in the brain is breached. Interestingly, all SCLC express the onconeural HuD antigen, and clinically useful tumor immune responses can be detected in up to 20% of patients, yet the paraneoplastic neurologic syndrome is extremely rare. We found that HuD-specific CD8+ T cells are normally present in the mouse T cell repertoire, but are not expanded upon immunization, although they can be detected after in vitro expansion. In contrast, HuD-specific T cells could be directly activated in HuD null mice, without the need for in vitro expansion. Taken together, these results demonstrate robust tolerance to the neuronal HuD antigen in vivo, and suggest a re-evaluation of the current concept of immune privilege in the brain.

  13. Head-Up; An interdisciplinary, participatory and co-design process informing the development of a novel head and neck support for people living with progressive neck muscle weakness.

    Science.gov (United States)

    Reed, Heath; Langley, Joe; Stanton, Andy; Heron, Nicola; Clarke, Zoe; Judge, Simon; McCarthy, Avril; Squire, Gill; Quinn, Ann; Wells, Oliver; Tindale, Wendy; Baxter, Susan; Shaw, Pamela J; McDermott, Christopher J

    2014-01-01

    This paper presents the Head-Up project, that aims to provide innovative head support to help improve posture, relieve pain and aid communication for people living with progressive neck muscle weakness. The initial focus is motor neurone disease. The case study illustrates collaborative, interdisciplinary research and new product development underpinned by participatory design. The study was initiated by a 2-day stakeholder workshop followed by early proof-of-concept modelling and patient need evidence building. The work subsequently led to a successful NIHR i4i application funding a 24-month iterative design process, patenting, CE marking and clinical evaluation. The evaluation has informed amendments to the proposed design refered to here as the Sheffield Support Snood (SSS). The outcome positively demonstrates use and performance improvements over current neck orthoses and the process of multidisciplinary and user engagement has created a sense of ownership by MND participants, who have since acted as advocates for the product.

  14. Displaying gray shades in liquid crystal displays

    Indian Academy of Sciences (India)

    These transistors act as a switch to charge and hold the desired voltage across a pixel. Passive matrix LCDs are easy to fabricate and cost less as compared to the active matrix LCDs. Current trend demands gray scale and colour capa- bilities even for the displays in mobile phones. Passive matrix LCDs will be preferred as.

  15. Using Vision System Technologies for Offset Approaches in Low Visibility Operations

    Science.gov (United States)

    Kramer, Lynda J.; Bailey, Randall E.; Ellis, Kyle K.

    2015-01-01

    Flight deck-based vision systems, such as Synthetic Vision Systems (SVS) and Enhanced Flight Vision Systems (EFVS), have the potential to provide additional margins of safety for aircrew performance and enable the implementation of operational improvements for low visibility surface, arrival, and departure operations in the terminal environment with equivalent efficiency to visual operations. Twelve air transport-rated crews participated in a motion-base simulation experiment to evaluate the use of SVS/EFVS in Next Generation Air Transportation System low visibility approach and landing operations at Chicago O'Hare airport. Three monochromatic, collimated head-up display (HUD) concepts (conventional HUD, SVS HUD, and EFVS HUD) and three instrument approach types (straight-in, 3-degree offset, 15-degree offset) were experimentally varied to test the efficacy of the SVS/EFVS HUD concepts for offset approach operations. The findings suggest making offset approaches in low visibility conditions with an EFVS HUD or SVS HUD appear feasible. Regardless of offset approach angle or HUD concept being flown, all approaches had comparable ILS tracking during the instrument segment and were within the lateral confines of the runway with acceptable sink rates during the visual segment of the approach. Keywords: Enhanced Flight Vision Systems; Synthetic Vision Systems; Head-up Display; NextGen

  16. Vibrotactile and visual threat cueing with high g threat intercept in dynamic flight simulation

    NARCIS (Netherlands)

    Eriksson, L.; Erp, J.B.F. van; Carlander, O.; Levin, B.; Veen, H.A.H.C. van; Veltman, J.E.

    2006-01-01

    In a TNO and FOI joint study, nine fighter pilots participated in a threat detection and intercept experiment in the Swedish Dynamic Flight Simulator. Visual threat cueing with a simulated Gripen aircraft head-up display (HUD) symbology was compared with combined visual and vibrotactile threat

  17. Scalable Resolution Display Walls

    KAUST Repository

    Leigh, Jason

    2013-01-01

    This article will describe the progress since 2000 on research and development in 2-D and 3-D scalable resolution display walls that are built from tiling individual lower resolution flat panel displays. The article will describe approaches and trends in display hardware construction, middleware architecture, and user-interaction design. The article will also highlight examples of use cases and the benefits the technology has brought to their respective disciplines. © 1963-2012 IEEE.

  18. OLED displays and lighting

    CERN Document Server

    Koden, Mitsuhiro

    2017-01-01

    Organic light-emitting diodes (OLEDs) have emerged as the leading technology for the new display and lighting market. OLEDs are solid-state devices composed of thin films of organic molecules that create light with the application of electricity. OLEDs can provide brighter, crisper displays on electronic devices and use less power than conventional light-emitting diodes (LEDs) or liquid crystal displays (LCDs) used today. This book covers both the fundamentals and practical applications of flat and flexible OLEDs.

  19. Displaying Data As Movies

    Science.gov (United States)

    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.

  20. JAVA Stereo Display Toolkit

    Science.gov (United States)

    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.

  1. Helmet-Mounted Displays (HMD)

    Data.gov (United States)

    Federal Laboratory Consortium — The Helmet-Mounted Display labis responsible for monocular HMD day display evaluations; monocular HMD night vision performance processes; binocular HMD day display...

  2. Effective Monitor Display Design.

    Science.gov (United States)

    Harrell, William

    1999-01-01

    Describes some of the factors that affect computer monitor display design and provides suggestions and insights into how screen displays can be designed more effectively. Topics include color, font choices, organizational structure of text, space outline, and general principles. (Author/LRW)

  3. Jet printing flexible displays

    OpenAIRE

    Street, R. A.; Wong, W S; Ready, S. E.; Chabinyc, M.L; Arias, A.C.; Limb, S.; Salleo, A; Lujan, R.

    2006-01-01

    Jet printing is an interesting patterning technique for electronic devices because it requires no physical mask, has digital control of ejection, and provides good layer-to-layer registration. It also has the potential to reduce display manufacturing costs and enable roll-to-roll processing. The technique is illustrated with examples of prototype printed displays using amorphous silicon and polymer semiconductors.

  4. Standardizing visual display quality

    NARCIS (Netherlands)

    Besuijen, J.; Spenkelink, G.P.J.

    1998-01-01

    The current ISO 9241–3 standard for visual display quality and the proposed user performance tests are reviewed. The standard is found to be more engineering than ergonomic and problems with system configuration, software applications, display settings, user behaviour, wear and physical environment

  5. Visual merchandising window display

    Directory of Open Access Journals (Sweden)

    Opris (Cas. Stanila M.

    2013-12-01

    Full Text Available Window display plays a major part in the selling strategies; it does not only include the simple display of goods, nowadays it is a form of art, also having the purpose of sustaining the brand image. This article wants to reveal the tools that are essential in creating a fabulous window display. Being a window designer is not an easy job, you have to always think ahead trends, to have a sense of colour, to know how to use light to attract customers in the store after only one glance at the window. The big store window displays are theatre scenes: with expensive backgrounds, special effects and high fashion mannequins. The final role of the displays is to convince customers to enter the store and trigger the purchasing act which is the final goal of the retail activity.

  6. Heads Up: Concussion in Youth Sports

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  10. Microlaser-based displays

    Science.gov (United States)

    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.

  11. A new locality of orchid Orchis purpurea Huds. in Cieszyn Foothills (Czech Republic

    Directory of Open Access Journals (Sweden)

    Beczała Tomasz

    2016-03-01

    Full Text Available Orchis purpurea Huds. is protected species both in the Czech Republic and Poland. In 2014 a new locality was found in Kojkovice (district Třinec in the Cieszyn Foothils near border with Poland. The only one blooming individual was observed in 2014 and 2015 but it was accompanied by other 6 orchid species, that were much more abundant, as: Orchis pallens, Orchis mascula subsp. signifera, Listera ovata, Platanthera bifolia, Cephalanthera damasonium, Neottia nidus-avis. The Kojkovice forest deserves to be protected area due to abundant occurrence of many orchids.

  12. De verschillende genoomgewichten van Europese Ficaria Huds.(Ranunculaceae) duiden op acht soorten

    OpenAIRE

    Zonneveld, Ben

    2015-01-01

    Nuclear genome size, as measured by flow cytometry with propidium iodide, was used to investigate the relationships within the genus Ficaria Huds. (Ranunculaceae). For the five diploids the genome size (2C) ranges from 12.5 pg to 23.2 pg. The three tetraploids range from 30.1 for F. chrysocephala (P.D.Sell) Zonn. comb. nov. to 36.2 pg for F. fascicularis. Therefore – despite the recent literature considering them often as subspecies – they are here regarded as species. Lesser Celandine (F. ve...

  13. Color Display Design Guide

    Science.gov (United States)

    1978-10-01

    and G. M. Corso , "Color flcsearch for Visuz’l Displays, Technical Report No. ONH-CR2l3-102-3, July 1975, 108 pp. 45 1 Results of two code comparison...respective- ly. Since the display elements constitute routine or non-priority informatica , all display information would be coded green if the three-color...1963, with Amendment 1, 30 September 1971. U.S. Government Printing Office: Washington, DC. 27. Christ, R.E. and G.M. Corso . "Color Research for Visual

  14. Small - Display Cartography

    DEFF Research Database (Denmark)

    Nissen, Flemming; Hvas, Anders; Münster-Swendsen, Jørgen

    This report comprises the work carried out in the work-package of small display cartography. The work-package has aimed at creating a general framework for the small-display cartography. A solid framework facilitates an increased use of spatial data in mobile devices - thus enabling, together...... Service Communication and finally, Part IV: Concluding remarks and topics for further research on small-display cartography. Part II includes a separate Appendix D consisting of a cartographic design specification. Part III includes a separate Appendix C consisting of a schema specification, a separate...

  15. Map display design

    Science.gov (United States)

    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.

  16. Compressive light field displays.

    Science.gov (United States)

    Wetzstein, Gordon; Lanman, Douglas; Hirsch, Matthew; Heidrich, Wolfgang; Raskar, Ramesh

    2012-01-01

    Light fields are the multiview extension of stereo image pairs: a collection of images showing a 3D scene from slightly different perspectives. Depicting high-resolution light fields usually requires an excessively large display bandwidth; compressive light field displays are enabled by the codesign of optical elements and computational-processing algorithms. Rather than pursuing a direct "optical" solution (for example, adding one more pixel to support the emission of one additional light ray), compressive displays aim to create flexible optical systems that can synthesize a compressed target light field. In effect, each pixel emits a superposition of light rays. Through compression and tailored optical designs, fewer display pixels are necessary to emit a given light field than a direct optical solution would require.

  17. Flexible displays, rigid designs?

    DEFF Research Database (Denmark)

    Hornbæk, Kasper

    2015-01-01

    Rapid technological progress has enabled a wide range of flexible displays for computing devices, but the user experience--which we're only beginning to understand--will be the key driver for successful designs....

  18. ENERGY STAR Certified Displays

    Data.gov (United States)

    U.S. Environmental Protection Agency — Certified models meet all ENERGY STAR requirements as listed in the Version 7.0 ENERGY STAR Program Requirements for Displays that are effective as of July 1, 2016....

  19. Advanced aerosense display interfaces

    Science.gov (United States)

    Hopper, Darrel G.; Meyer, Frederick M.

    1998-09-01

    High-resolution display technologies are being developed to meet the ever-increasing demand for realistic detail. The requirement for evermore visual information exceeds the capacity of fielded aerospace display interfaces. In this paper we begin an exploration of display interfaces and evolving aerospace requirements. Current and evolving standards for avionics, commercial, and flat panel displays are summarized and compared to near term goals for military and aerospace applications. Aerospace and military applications prior to 2005 up to UXGA and digital HDTV resolution can be met by using commercial interface standard developments. Advanced aerospace requirements require yet higher resolutions (2560 X 2048 color pixels, 5120 X 4096 color pixels at 85 Hz, etc.) and necessitate the initiation of discussion herein of an 'ultra digital interface standard (UDIS)' which includes 'smart interface' features such as large memory and blazingly fast resizing microcomputer. Interface capacity, IT, increased about 105 from 1973 to 1998; 102 more is needed for UDIS.

  20. Military display performance parameters

    Science.gov (United States)

    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.

  1. ORFeome Phage Display.

    Science.gov (United States)

    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.

  2. Information rich display design

    Energy Technology Data Exchange (ETDEWEB)

    Welch, Robin; Braseth, Alf Ove; Veland, Oeystein

    2004-07-01

    This paper presents the concept Information Rich Displays. The purpose of Information Rich Displays (IRDs) is to condensate prevailing information in process displays in such a way that each display format (picture) contains more relevant information for the user. Compared to traditional process control displays, this new concept allows the operator to attain key information at a glance and at the same time allows for improved monitoring of larger portions of the process. This again allows for reduced navigation between both process and trend displays and ease the cognitive demand on the operator. This concept has been created while working on designing display prototypes for the offshore petroleum production facilities of tomorrow. Offshore installations basically consist of wells, separation trains (where oil, gas and water are separated from each other), an oil tax measurement system (where oil quality is measured and the pressure increased to allow for export), gas compression (compression of gas for export) and utility systems (water treatment, chemical systems etc.). This means that an offshore control room operator has to deal with a complex process that comprises several functionally different systems. The need for a new approach to offshore display format design is in particular based on shortcomings in today's designs related to the keyhole effect, where the display format only reveals a fraction of the whole process. Furthermore, the upcoming introduction of larger off- and on-shore operation centres will increase the size and complexity of the operators' work domain. In the light of the increased demands on the operator, the proposed IRDs aim to counter the negative effects this may have on the workload. In this work we have attempted to classify the wide range of different roles an operator can have in different situations. The information content and amount being presented to the operator in a display should be viewed in context of the roles

  3. Perceptual limitations of peripherally displayed colors on CRTs

    Science.gov (United States)

    Ancman, Eileen G.

    1991-03-01

    Cathode ray tubes are currently used in aircraft cockpits to relay important color coded information necessary for mission completion and pilot survival. Color CRT's presently used are as large as 6 x 6 inch, but are projected to increase in size until the all glass cockpit is achieved. As the display gets larger, peripheral vision may be relied upon even more heavily. Peripheral vision is also important in present situations involving more than one CRT display used in a row, and especially when the pilot is in a head-up mode. The research in this report dealt with a subject's ability to recognize in their peripheral vision the three primary colors, blue, green, and red, on a cathode ray tube (CRT) with all three guns adjusted to achieve equal luminance. Data for various subject psychological states (normal, stressed, and relaxed) was collected. Percent error (e.g., how many times red was perceived as green or blue) was recorded for each state and color. A second performance measure, visual field dimension (e.g., degrees off of fovea where the color of the circle was correctly perceived) along the x-axis, was also collected for each color and psychological state.

  4. Dynamic plasmonic colour display

    Science.gov (United States)

    Duan, Xiaoyang; Kamin, Simon; Liu, Na

    2017-01-01

    Plasmonic colour printing based on engineered metasurfaces has revolutionized colour display science due to its unprecedented subwavelength resolution and high-density optical data storage. However, advanced plasmonic displays with novel functionalities including dynamic multicolour printing, animations, and highly secure encryption have remained in their infancy. Here we demonstrate a dynamic plasmonic colour display technique that enables all the aforementioned functionalities using catalytic magnesium metasurfaces. Controlled hydrogenation and dehydrogenation of the constituent magnesium nanoparticles, which serve as dynamic pixels, allow for plasmonic colour printing, tuning, erasing and restoration of colour. Different dynamic pixels feature distinct colour transformation kinetics, enabling plasmonic animations. Through smart material processing, information encoded on selected pixels, which are indiscernible to both optical and scanning electron microscopies, can only be read out using hydrogen as a decoding key, suggesting a new generation of information encryption and anti-counterfeiting applications. PMID:28232722

  5. Stereo Painting Display Devices

    Science.gov (United States)

    Shafer, David

    1982-06-01

    The Spanish Surrealist artist Salvador Dali has recently perfected the art of producing two paintings which are stereo pairs. Each painting is separately quite remarkable, presenting a subject with the vivid realism and clarity for which Dali is famous. Due to the surrealistic themes of Dali's art, however, the subjects preser.ted with such naturalism only exist in his imagination. Despite this considerable obstacle to producing stereo art, Dali has managed to paint stereo pairs that display subtle differences of coloring and lighting, in addition to the essential perspective differences. These stereo paintings require a display method that will allow the viewer to experience stereo fusion, but which will not degrade the high quality of the art work. This paper gives a review of several display methods that seem promising in terms of economy, size, adjustability, and image quality.

  6. 78 FR 47717 - The Violence Against Women Reauthorization Act of 2013: Overview of Applicability to HUD Programs

    Science.gov (United States)

    2013-08-06

    ... URBAN DEVELOPMENT The Violence Against Women Reauthorization Act of 2013: Overview of Applicability to... overview of the applicability to HUD programs of the recently enacted Violence Against Women... date. This notice is issued to provide an overview of the Violence Against Women Reauthorization Act of...

  7. 76 FR 4193 - Equal Access to Housing in HUD Programs-Regardless of Sexual Orientation or Gender Identity

    Science.gov (United States)

    2011-01-24

    ... enactments are a source of further evidence of housing discrimination ] based on sexual orientation or gender...., Laws Prohibiting Discrimination Based on Sexual Orientation and Gender Identity (Institute of Real... exclusion or discrimination on the basis of sexual orientation or gender identity in HUD programs. Such...

  8. 77 FR 17086 - Section 8 Housing Choice Vouchers: Revised Implementation of the HUD-VA Supportive Housing Program

    Science.gov (United States)

    2012-03-23

    ... Appropriations Act, 2010 (Pub. L. 111- 117, approved December 16, 2009); the Department of Defense and Full-Year... VA. The process relies primarily on three sets of data: (1) HUD's point-in-time data submitted by... type that must be recorded on line 2a is ``1'' for a new admission (a family that is new to the HCV...

  9. 78 FR 70958 - 30-Day Notice of Proposed Information Collection: Recordkeeping for HUD's Continuum of Care Program

    Science.gov (United States)

    2013-11-27

    ... URBAN DEVELOPMENT 30-Day Notice of Proposed Information Collection: Recordkeeping for HUD's Continuum of... allow for an additional 30 days of public comment. DATES: Comments Due Date: December 27, 2013... solicited public comment on the information collection for a period of 60 days was published on March 25...

  10. 75 FR 58423 - Notice of Funding Availability for HUD's Fiscal Year (FY) 2010 Lead-Based Paint Hazard Control...

    Science.gov (United States)

    2010-09-24

    ... URBAN DEVELOPMENT Notice of Funding Availability for HUD's Fiscal Year (FY) 2010 Lead-Based Paint Hazard... FY2010 Lead-Based Paint Hazard Control Grant Program and Lead Hazard Reduction Demonstration Grant... jurisdictions unaffected by the error in Appendix A. For jurisdictions eligible under the Lead-Based Paint...

  11. 24 CFR 964.320 - HUD Policy on training, employment, contracting and subcontracting of public housing residents.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false HUD Policy on training, employment, contracting and subcontracting of public housing residents. 964.320 Section 964.320 Housing and Urban... training, employment, contracting and subcontracting of public housing residents. In accordance with...

  12. 76 FR 35461 - Notice of Web Availability: Notice of Funding Availability (NOFA) for HUD's Fiscal Year (FY) 2011...

    Science.gov (United States)

    2011-06-17

    ... coalition and leadership network of the Sustainable Communities grantees. The purpose of the network is to facilitate the exchange of successful strategies, lessons learned, emerging tools and public engagement strategies, and approaches for avoiding or minimizing pitfalls. HUD will work with the selected...

  13. 24 CFR 1710.29 - Use of property report-misstatements, omissions or representation of HUD approval prohibited.

    Science.gov (United States)

    2010-04-01

    ... FOR HOUSING-FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT (INTERSTATE LAND... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Use of property report-misstatements, omissions or representation of HUD approval prohibited. 1710.29 Section 1710.29 Housing and Urban...

  14. 76 FR 15991 - HUD's Fiscal Year (FY) 2010 NOFA for the Self-Help Homeownership Opportunity Program (SHOP...

    Science.gov (United States)

    2011-03-22

    ... URBAN DEVELOPMENT HUD's Fiscal Year (FY) 2010 NOFA for the Self-Help Homeownership Opportunity Program... technical correction to the FY 2010 NOFA for the Self-Help homeownership Opportunity Program (SHOP). This... the deadline date for the Self-Help homeownership Opportunity Program (SHOP) NOFA until April 18, 2011...

  15. 75 FR 78265 - Notice of Submission of Proposed Information Collection to OMB HUD Conditional Commitment/Direct...

    Science.gov (United States)

    2010-12-15

    ... submit a copy of the completed form to HUD for endorsement as part of the case binder; to provide a copy... Desk Officer, Office of Management and Budget, New Executive Office Building, Washington, ] DC 20503... endorsement as part of the case binder; to provide a copy to the homebuyer; and to maintain a copy for the...

  16. Refreshing Refreshable Braille Displays.

    Science.gov (United States)

    Russomanno, Alexander; O'Modhrain, Sile; Gillespie, R Brent; Rodger, Matthew W M

    2015-01-01

    The increased access to books afforded to blind people via e-publishing has given them long-sought independence for both recreational and educational reading. In most cases, blind readers access materials using speech output. For some content such as highly technical texts, music, and graphics, speech is not an appropriate access modality as it does not promote deep understanding. Therefore blind braille readers often prefer electronic braille displays. But, these are prohibitively expensive. The search is on, therefore, for a low-cost refreshable display that would go beyond current technologies and deliver graphical content as well as text. And many solutions have been proposed, some of which reduce costs by restricting the number of characters that can be displayed, even down to a single braille cell. In this paper, we demonstrate that restricting tactile cues during braille reading leads to poorer performance in a letter recognition task. In particular, we show that lack of sliding contact between the fingertip and the braille reading surface results in more errors and that the number of errors increases as a function of presentation speed. These findings suggest that single cell displays which do not incorporate sliding contact are likely to be less effective for braille reading.

  17. Ficaria verna Huds. extracts and their β-cyclodextrin supramolecular systems

    Directory of Open Access Journals (Sweden)

    Hădărugă Nicoleta G

    2012-03-01

    Full Text Available Abstract Background Obtaining new pharmaceutical materials with enhanced properties by using natural compounds and environment-friendly methods is a continuous goal for scientists. Ficaria verna Huds. is a widespread perennial plant with applications in the treat of haemorrhoids and to cure piles; it has also anti-inflammatory, astringent, and antibiotic properties. The goal of the present study is the obtaining and characterization of new F. verna extract/β-cyclodextrin complexes by using only natural compounds, solvents, and environment-friendly methods in order to increase the quality and acceptability versus toxicity indicator. Thus, the flavonoid content (as quercetin of Ficaria verna Huds. flowers and leaves from the West side of Romania was determined and correlated with their antioxidant activity. Further, the possibility of obtaining β-cyclodextrin supramolecular systems was studied. Results F. verna flowers and leaves extracts were obtained by semi-continuous solid-liquid extraction. The raw concentrated extract was spectrophotometrically analyzed in order to quantify the flavonoids from plant parts and to evaluate the antioxidant activity of these extracts. The F. verna extracts were used for obtaining β-cyclodextrin complexes; these were analyzed by scanning electron microscopy and Karl Fischer water titration; spectrophotometry was used in order to quantifying the flavonoids and evaluates the antioxidant activity. A higher concentration of flavonoids of 0.5% was determined in complexes obtained by crystallisation method, while only a half of this value was calculated for kneading method. The antioxidant activity of these complexes was correlated with the flavonoid content and this parameter reveals possible controlled release properties. Conclusions The flavonoid content of F. verna Huds. from the West side of Romania (Banat county is approximately the same in flowers and leaves, being situated at a medium value among other

  18. Ficaria verna Huds. extracts and their β-cyclodextrin supramolecular systems.

    Science.gov (United States)

    Hădărugă, Nicoleta G

    2012-03-05

    Obtaining new pharmaceutical materials with enhanced properties by using natural compounds and environment-friendly methods is a continuous goal for scientists. Ficaria verna Huds. is a widespread perennial plant with applications in the treat of haemorrhoids and to cure piles; it has also anti-inflammatory, astringent, and antibiotic properties. The goal of the present study is the obtaining and characterization of new F. verna extract/β-cyclodextrin complexes by using only natural compounds, solvents, and environment-friendly methods in order to increase the quality and acceptability versus toxicity indicator. Thus, the flavonoid content (as quercetin) of Ficaria verna Huds. flowers and leaves from the West side of Romania was determined and correlated with their antioxidant activity. Further, the possibility of obtaining β-cyclodextrin supramolecular systems was studied. F. verna flowers and leaves extracts were obtained by semi-continuous solid-liquid extraction. The raw concentrated extract was spectrophotometrically analyzed in order to quantify the flavonoids from plant parts and to evaluate the antioxidant activity of these extracts. The F. verna extracts were used for obtaining β-cyclodextrin complexes; these were analyzed by scanning electron microscopy and Karl Fischer water titration; spectrophotometry was used in order to quantifying the flavonoids and evaluates the antioxidant activity. A higher concentration of flavonoids of 0.5% was determined in complexes obtained by crystallisation method, while only a half of this value was calculated for kneading method. The antioxidant activity of these complexes was correlated with the flavonoid content and this parameter reveals possible controlled release properties. The flavonoid content of F. verna Huds. from the West side of Romania (Banat county) is approximately the same in flowers and leaves, being situated at a medium value among other studies. β-Cyclodextrin complexes of F. verna extracts are

  19. OCCURRENCE OF ENTOMOPATHOGENIC FUNGI IN SOILS FROM FESTUCA PRATENSIS HUDS. CROP

    Directory of Open Access Journals (Sweden)

    Roman Kolczarek

    2014-04-01

    Full Text Available Entomopathogenic fungi are the largest group of microorganisms existing in the soil environment. Occurrence and pathogenicity of entomopathogenic fungi in soil is dependent on many factors affecting the soil environment. The aim of this study was to compare the species composition and the intensity of the occurrence of entomopathogenic fungi in soils from monoculture crops of Festuca pratensis Huds. The study material consisted of soil samples taken from the experiment conducted in two experimental stations of the Research Centre for Cultivars Study. The insecticides fungi were isolated from soil using a method of the selective substrate. Three species of entomopathogenic fungi Beauveria bassiana, Isaria fumosorosea and Metarhizium anisopliae were isolated from the study soils using the selective medium.

  20. [Phenolic compounds in leaves insertions of Mentha × villosa Huds. cv. Snežná].

    Science.gov (United States)

    Tekeľová, Daniela; Bittner Fialová, Silvia; Tóth, Jaroslav; Czigle, Szilvia

    Lamiaceae plants mostly accumulate active ingredients in their leaves. The subfamily Nepetoideae, including the genus Mentha L., is characterized by the presence of essential oil and antioxidant phenolics, chiefly hydroxycinnamic acids with predominance of rosmarinic acid, and flavonoids. Mentha × piperita and M. spicata are the most broadly used mints in both medicine and industry, while M. x villosa is less known in our country. Herbal drugs in the form of leaves are usually analysed unpartitioned, while single leaves insertions have only been studied occasionally. Therefore, the aim of this work was the quantification of the active compounds content in the leaves pairs of Mentha × villosa Huds. cv. Snežná, using pharmacopoeial methods: total hydroxycinnamic derivatives expressed as rosmarinic acid (THD) and luteolin-type flavonoids. THD content ranged from 6.7% to 9.4% in the leaves pairs water extracts, and from 6.6% to 14.0% in methanol extracts. Flavonoids contents, expressed as luteolin-7-O-glucoside, ranged from 4.0% to 8.8% in water extracts, and from 4.0% to 10.5% in methanol extracts. Antioxidant activity (DPPH) expressed as SC50 ranged from 10.2 to 16.9 μg.ml-1 (drug dry weight) in water extracts, and from 10.7 to 21.6 μg.ml-1 in methanol extracts. The highest content of phenolic compounds as well as the highest antioxidant activity were found to be in the top sheet, while the lowest content of phenolic compounds and lowest antioxidant activity were detected in the leaves of the middle stem part.Key words: Mentha × villosa Huds cv. Snežná hydroxycinnamic derivatives rosmarinic acid luteolin-7-O-glucoside DPPH.

  1. Refrigerated display cabinets; Butikskyla

    Energy Technology Data Exchange (ETDEWEB)

    Fahlen, Per

    2000-07-01

    This report summarizes experience from SP research and assignments regarding refrigerated transport and storage of food, mainly in the retail sector. It presents the fundamentals of heat and mass transfer in display cabinets with special focus on indirect systems and secondary refrigerants. Moreover, the report includes a brief account of basic food hygiene and the related regulations. The material has been compiled for educational purposes in the Masters program at Chalmers Technical University.

  2. Tactical Video Display.

    Science.gov (United States)

    1981-02-01

    designed to extend the state-of-the-art in the area of thin film electroluminescent display systems. The program entails two major areas of efforts...the inclusion of the residual gases in thin film is very likely and dependent upon the concentrations of the gases and the reactive nature of the...reproducible films . Some exploratory work was also performed on the feasitility of applying a ZnTe /Te system black layer with TFEL structure. Pre

  3. Attention-Seeking Displays.

    Directory of Open Access Journals (Sweden)

    Szabolcs Számadó

    Full Text Available Animal communication abounds with extravagant displays. These signals are usually interpreted as costly signals of quality. However, there is another important function for these signals: to call the attention of the receiver to the signaller. While there is abundant empirical evidence to show the importance of this stage, it is not yet incorporated into standard signalling theory. Here I investigate a general model of signalling - based on a basic action-response game - that incorporates this searching stage. I show that giving attention-seeking displays and searching for them can be an ESS. This is a very general result and holds regardless whether only the high quality signallers or both high and low types give them. These signals need not be costly at the equilibrium and they need not be honest signals of any quality, as their function is not to signal quality but simply to call the attention of the potential receivers. These kind of displays are probably more common than their current weight in the literature would suggest.

  4. Stage Cylindrical Immersive Display

    Science.gov (United States)

    Abramyan, Lucy; Norris, Jeffrey S.; Powell, Mark W.; Mittman, David S.; Shams, Khawaja S.

    2011-01-01

    Panoramic images with a wide field of view intend to provide a better understanding of an environment by placing objects of the environment on one seamless image. However, understanding the sizes and relative positions of the objects in a panorama is not intuitive and prone to errors because the field of view is unnatural to human perception. Scientists are often faced with the difficult task of interpreting the sizes and relative positions of objects in an environment when viewing an image of the environment on computer monitors or prints. A panorama can display an object that appears to be to the right of the viewer when it is, in fact, behind the viewer. This misinterpretation can be very costly, especially when the environment is remote and/or only accessible by unmanned vehicles. A 270 cylindrical display has been developed that surrounds the viewer with carefully calibrated panoramic imagery that correctly engages their natural kinesthetic senses and provides a more accurate awareness of the environment. The cylindrical immersive display offers a more natural window to the environment than a standard cubic CAVE (Cave Automatic Virtual Environment), and the geometry allows multiple collocated users to simultaneously view data and share important decision-making tasks. A CAVE is an immersive virtual reality environment that allows one or more users to absorb themselves in a virtual environment. A common CAVE setup is a room-sized cube where the cube sides act as projection planes. By nature, all cubic CAVEs face a problem with edge matching at edges and corners of the display. Modern immersive displays have found ways to minimize seams by creating very tight edges, and rely on the user to ignore the seam. One significant deficiency of flat-walled CAVEs is that the sense of orientation and perspective within the scene is broken across adjacent walls. On any single wall, parallel lines properly converge at their vanishing point as they should, and the sense of

  5. Handbook of Visual Display Technology

    CERN Document Server

    Cranton, Wayne; Fihn, Mark

    2012-01-01

    The Handbook of Visual Display Technology is a unique work offering a comprehensive description of the science, technology, economic and human interface factors associated with the displays industry. An invaluable compilation of information, the Handbook will serve as a single reference source with expert contributions from over 150 international display professionals and academic researchers. All classes of display device are covered including LCDs, reflective displays, flexible solutions and emissive devices such as OLEDs and plasma displays, with discussion of established principles, emergent technologies, and particular areas of application. The wide-ranging content also encompasses the fundamental science of light and vision, image manipulation, core materials and processing techniques, display driving and metrology.

  6. Image Descriptors for Displays

    Science.gov (United States)

    1977-02-01

    the entire display could be changed as often as every 1/60 s (TV field rate). Scan interlace was not used on the monitor. The 1/60-s resolution of...of photons arriving at the retina. These contributions can be separated by examining the experimental mT(v) as a function of luminance. From... photon shot noise, was found to be negligible for luminance .al.•- above 4 iabout 10 mL. Thus, the function A(v) represents the m4(v) employed in the

  7. Painting Reproductions on Display

    Directory of Open Access Journals (Sweden)

    Joanna Iranowska

    2017-09-01

    Full Text Available Paintings in museums might occasionally be replaced by a photoprint mimicking the original. This article is an investigation of what constitutes a good reproduction of an artwork (oil painting that is meant to be displayed. The article discusses what the usefulness of reproductions depends on, applying the Valuation Studies approach, which means the primary concern is with the practice of valuing itself. In other words, the study focuses on how museum experts evaluate reproduc-tions of oil paintings. The article analyses three cases of displaying digitally prin-ted copies of Edvard Munch's oil paintings between 2013 and 2015 in the Munch Museum and in the National Gallery in Oslo. The study is based on a series of semi-structured interviews with the experts, working at and for the museums, that were involved in producing and exhibiting of the photoprints: curators, con-servators, museum educators, and external manufacturers. The interviews were grouped into five clusters, which I have chosen to call registers of valuing following Frank Heuts and Annemarie Mol (2013. The described valuation practices have to do with delivering experiences to the public, obtaining mimetic resemblance, solving ethical aspects, exhibitions' budget, and last but not least, with the time perspective.

  8. HuD and the Survival Motor Neuron Protein Interact in Motoneurons and Are Essential for Motoneuron Development, Function, and mRNA Regulation.

    Science.gov (United States)

    Hao le, Thi; Duy, Phan Q; An, Min; Talbot, Jared; Iyer, Chitra C; Wolman, Marc; Beattie, Christine E

    2017-11-29

    Motoneurons establish a critical link between the CNS and muscles. If motoneurons do not develop correctly, they cannot form the required connections, resulting in movement defects or paralysis. Compromised development can also lead to degeneration because the motoneuron is not set up to function properly. Little is known, however, regarding the mechanisms that control vertebrate motoneuron development, particularly the later stages of axon branch and dendrite formation. The motoneuron disease spinal muscular atrophy (SMA) is caused by low levels of the survival motor neuron (SMN) protein leading to defects in vertebrate motoneuron development and synapse formation. Here we show using zebrafish as a model system that SMN interacts with the RNA binding protein (RBP) HuD in motoneurons in vivo during formation of axonal branches and dendrites. To determine the function of HuD in motoneurons, we generated zebrafish HuD mutants and found that they exhibited decreased motor axon branches, dramatically fewer dendrites, and movement defects. These same phenotypes are present in animals expressing low levels of SMN, indicating that both proteins function in motoneuron development. HuD binds and transports mRNAs and one of its target mRNAs, Gap43, is involved in axonal outgrowth. We found that Gap43 was decreased in both HuD and SMN mutants. Importantly, transgenic expression of HuD in motoneurons of SMN mutants rescued the motoneuron defects, the movement defects, and Gap43 mRNA levels. These data support that the interaction between SMN and HuD is critical for motoneuron development and point to a role for RBPs in SMA.SIGNIFICANCE STATEMENT In zebrafish models of the motoneuron disease spinal muscular atrophy (SMA), motor axons fail to form the normal extent of axonal branches and dendrites leading to decreased motor function. SMA is caused by low levels of the survival motor neuron (SMN) protein. We show in motoneurons in vivo that SMN interacts with the RNA binding

  9. Determining minimal display element requirements for surface map displays

    Science.gov (United States)

    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...

  10. A Well Tempered Mammographic Display

    National Research Council Canada - National Science Library

    Kundel, Harold L

    1997-01-01

    This proposal addresses the development of a softcopy display for digital mammography that seeks to couple optimally the visual system to the displayed image without excessive human-machine interaction...

  11. Optimal delivery in display advertising

    OpenAIRE

    Mostagir, Mohamed

    2010-01-01

    In display advertising, a publisher targets a specific audience by displaying ads on content web pages. Because the publisher has little control over the supply of display opportunities, the actual supply of ads that it can sell is stochastic. We consider the problem of optimal ad delivery, where an advertiser requests a certain number of impressions to be displayed by the publisher over a certain time horizon. Time is divided into periods, and in the beginning of each period the publisher ch...

  12. Chemical composition, antimicrobial and antioxidant properties of Mentha longifolia (L. Huds. essential oil

    Directory of Open Access Journals (Sweden)

    Haris Nikšić

    2012-12-01

    Full Text Available Introduction: Present study describes the antimicrobial activity and free radical scavenging capacity (RSC of essential oil from Mentha longifolia (L. Huds. Aim of this study to investigate the quality, antimicrobial andantioxidant activity of wild species Mentha longifolia essential oil from Bosnia and Herzegovina.Methods: The chemical profi le of essential oil was evaluated by the means of gas chromatography-mass spectrometry (GC-MS and thin-layer chromatography (TLC. Antimicrobial activity was tested against 6bacterial strains. RSC was assessed by measuring the scavenging activity of essential oils on 2,2- diphenyl-1-picrylhydrazil (DPPH.Results: The main constituents of the essential oil of M. longifoliae folium were oxygenated monoterpenes,piperitone oxide (63.58% and 1,8-cineole (12.03%. Essential oil exhibited very strong antibacterial activity.The most important antibacterial activity essential oil was expressed on Gram negative strains: Escherichia coli, Pseudomonas aerginosa and Salmonella enterica. subsp.enterica serotype ABONY. Antioxidant activity was evaluated as a RSC. Investigated essential oil was able to reduce DPPH radicals into the neutral DPPHH form (IC50=10.5 μg/ml and this activity was dose –dependent.Conclusion: The study revealed signifi cant antimicrobial activity of the investigated essential oil. The examined oil exhibited high RSC, which was found to be in correlation to the content of mainly monoterpeneketones and aldehydes. These results indicate that essential oils could serve as safe antioxidant and antiseptic supplements in pharmaceuticals.

  13. LHCb Event display

    CERN Document Server

    Trisovic, Ana

    2014-01-01

    The LHCb Event Display was made for educational purposes at the European Organization for Nuclear Research, CERN in Geneva, Switzerland. The project was implemented as a stand-alone application using C++ and ROOT, a framework developed by CERN for data analysis. This paper outlines the development and architecture of the application in detail, as well as the motivation for the development and the goals of the exercise. The application focuses on the visualization of events recorded by the LHCb detector, where an event represents a set of charged particle tracks in one proton-proton collision. Every particle track is coloured by its type and can be selected to see its essential information such as mass and momentum. The application allows students to save this information and calculate the invariant mass for any pair of particles. Furthermore, the students can use additional calculating tools in the application and build up a histogram of these invariant masses. The goal for the students is to find a $D^0$ par...

  14. Colorimetry for CRT displays.

    Science.gov (United States)

    Golz, Jürgen; MacLeod, Donald I A

    2003-05-01

    We analyze the sources of error in specifying color in CRT displays. These include errors inherent in the use of the color matching functions of the CIE 1931 standard observer when only colorimetric, not radiometric, calibrations are available. We provide transformation coefficients that prove to correct the deficiencies of this observer very well. We consider four different candidate sets of cone sensitivities. Some of these differ substantially; variation among candidate cone sensitivities exceeds the variation among phosphors. Finally, the effects of the recognized forms of observer variation on the visual responses (cone excitations or cone contrasts) generated by CRT stimuli are investigated and quantitatively specified. Cone pigment polymorphism gives rise to variation of a few per cent in relative excitation by the different phosphors--a variation larger than the errors ensuing from the adoption of the CIE standard observer, though smaller than the differences between some candidate cone sensitivities. Macular pigmentation has a larger influence, affecting mainly responses to the blue phosphor. The estimated combined effect of all sources of observer variation is comparable in magnitude with the largest differences between competing cone sensitivity estimates but is not enough to disrupt very seriously the relation between the L and M cone weights and the isoluminance settings of individual observers. It is also comparable with typical instrumental colorimetric errors, but we discuss these only briefly.

  15. Augmenting digital displays with computation

    Science.gov (United States)

    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

  16. PACS displays: how to select the right display technology.

    Science.gov (United States)

    Hirschorn, David S; Krupinski, Elizabeth A; Flynn, Michael J

    2014-12-01

    The medical imaging display is a precision instrument with many features not found in commercial-grade displays. The more one understands what these features are and their corresponding clinical value, the better one can make a purchase decision. None of these displays maintain themselves for 5 years or more without some degree of automatic or manual performance testing. Routine calibration conformance checks are beginning to be mandated by the departments of health of many states. Most manufacturers provide mechanisms to perform these checks and keep track of their results, some more easily than others. A consistent display brightness of about 400 cd/m(2) and close conformance to the DICOM curve are the key components of a successful check. Displays are typically characterized by the number of pixels they contain, usually 2, 3, or 5 megapixels, but this is the least useful determinant of image quality. What matters most is the size of the pixels and the size of the whole display, which should be selected on the basis of the typical viewing distance. The farther one's eyes are from the display, the larger the pixels and the overall display size can be while still feeding the eye as much information as it can see. Care should be taken to use the appropriate display in a given setting for the clinical purpose at hand. Copyright © 2014 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  17. Prototyping user displays using CLIPS

    Science.gov (United States)

    Kosta, Charles P.; Miller, Ross; Krolak, Patrick; Vesty, Matt

    1990-01-01

    CLIPS is being used as an integral module of a rapid prototyping system. The prototyping system consists of a display manager for object browsing, a graph program for displaying line and bar charts, and a communications server for routing messages between modules. A CLIPS simulation of a physical model provides dynamic control of the user's display. Currently, a project is well underway to prototype the Advanced Automation System (AAS) for the Federal Aviation Administration.

  18. Texture-based correspondence display

    Science.gov (United States)

    Gerald-Yamasaki, Michael

    2005-03-01

    Texture-based correspondence display is a methodology to display corresponding data elements in visual representations of complex multidimensional, multivariate data. Texture is utilized as a persistent medium to contain a visual representation model and as a means to create multiple renditions of data where color is used to identify correspondence. Corresponding data elements are displayed over a variety of visual metaphors in a normal rendering process without adding extraneous linking metadata creation and maintenance. Texture-based correspondence display extends the effectiveness of visual representation for understanding data to the understanding and creation of visual representation models.

  19. Integrated micromachined scanning display systems

    Science.gov (United States)

    Hagelin, Paul M.; Krishnamoorthy, Uma; Conant, Robert A.; Muller, Richard S.; Lau, Kam Y.; Solgaard, Olav

    1999-07-01

    We describe a raster-scanning display system comprised of two tilt-up micromachined polysilicon mirrors that rotate about orthogonal axes. We have demonstrated a resolution of 102 X 119 pixels. The optical efficiency of our two- mirror micro-optical raster-scanning system is comparable to that of micromachined display systems developed by Texas Instruments and Silicon Light Machines. Ease of integration with on-chip light sources and lenses has the potential to reduce packaging size, complexity and cost of the display system and makes it well suited for head-mounted display applications.

  20. Display Technology: An Annotated Bibliography.

    Science.gov (United States)

    1973-12-01

    cockpit displays in future aircraft may be radically different from the present arrays of separate, single-purpose instruments. Many display ca - pabilities...Interna- tional Air Transport Association 15th Technical Conference, Lucerne , Switzer- land, April 1963. Engineering Paper No. 1583, Douglas Aircraft

  1. Cognitive Considerations in Display Design.

    Science.gov (United States)

    Simcox, William

    This investigation of the encoding features of graphs begins with a description of a cognitive framework which allows designers to factor into the process of designing displays how people interpret the information found and what display properties are responsible for this interpretation. The framework also provides a performance measure for use in…

  2. Flexible Bistable Cholesteric Reflective Displays

    Science.gov (United States)

    Yang, Deng-Ke

    2006-03-01

    Cholesteric liquid crystals (ChLCs) exhibit two stable states at zero field condition-the reflecting planar state and the nonreflecting focal conic state. ChLCs are an excellent candidate for inexpensive and rugged electronic books and papers. This paper will review the display cell structure,materials and drive schemes for flexible bistable cholesteric (Ch) reflective displays.

  3. Real Image Visual Display System

    Science.gov (United States)

    1992-12-01

    Vol. 1457 Stereoscopic Displays and Applications 11, 274-282 (February 1991). 15. Lucente, Marc . "Optimization of Hologram Computaion for Real-Time Dis...play," SPIE Vol. 1667 Practical Holography VI, 32-43 (February 1992). 16. Marraud, A. and M. Bonnet . "Restitution of Stereoscopic Picture by Means

  4. INFORMATION DISPLAY: CONSIDERATIONS FOR DESIGNING COMPUTER-BASED DISPLAY SYSTEMS.

    Energy Technology Data Exchange (ETDEWEB)

    O' HARA,J.M.; PIRUS,D.; BELTRATCCHI,L.

    2004-09-19

    This paper discussed the presentation of information in computer-based control rooms. Issues associated with the typical displays currently in use are discussed. It is concluded that these displays should be augmented with new displays designed to better meet the information needs of plant personnel and to minimize the need for interface management tasks (the activities personnel have to do to access and organize the information they need). Several approaches to information design are discussed, specifically addressing: (1) monitoring, detection, and situation assessment; (2) routine task performance; and (3) teamwork, crew coordination, collaborative work.

  5. Flat panel display - Impurity doping technology for flat panel displays

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Toshiharu [Advanced Technology Planning, Sumitomo Eaton Nova Corporation, SBS Tower 9F, 10-1, Yoga 4-chome, Setagaya-ku, 158-0097 Tokyo (Japan)]. E-mail: suzuki_tsh@senova.co.jp

    2005-08-01

    Features of the flat panel displays (FPDs) such as liquid crystal display (LCD) and organic light emitting diode (OLED) display, etc. using low temperature poly-Si (LTPS) thin film transistors (TFTs) are briefly reviewed comparing with other FPDs. The requirements for fabricating TFTs used for high performance FPDs and system on glass (SoG) are addressed. This paper focuses on the impurity doping technology, which is one of the key technologies together with crystallization by laser annealing, formation of high quality gate insulator and gate-insulator/poly-Si interface. The issues to be solved in impurity doping technology for state of the art and future TFTs are clarified.

  6. Addressing Lead-Based Paint Hazards During Renovation, Remodeling, and Rehabilitation in Federally Owned and Assisted Housing. Instructor Manual for Use in HUD-Sponsored Lead-Safe Work Practices Training.

    Science.gov (United States)

    Environmental Protection Agency, Washington, DC. Office of Pollution Prevention and Toxics.

    This document is the instructor's manual for a U.S. Department of Housing and Urban Development (HUD) training course that reflects the requirements of HUD's Lead Safe Housing Rule and is designed to provide training contractors with information regarding containment, minimization, and cleanup of lead hazards during activities that disturb…

  7. Field experiences with recent ALS-inhibitors on herbicide resistant blackgrass (Alopecurus myosuroides Huds.).

    Science.gov (United States)

    Desmet, E M; Bulcke, R; Maeghe, L

    2004-01-01

    In the growing season 2002-2003 two field experiments were carried out in winter wheat on the heavy clay soil of the coastal polder area at Zevekote to study the response of blackgrass (Alopecurus myosuroides Huds.) resistant or somewhat less sensitive to a wide variety of herbicides (clodinafop-propargyl, fenoxaprop-P-ethy1; flupyrsulfuron-methyl+metsulfuron-methyl, propoxycarbazone-sodium; isoproturon) representing various modes of action. In Experiment 1, preemergence applications of isoproturon+diflufenican (1500+187.5 g/ha) and isoproturon+diflufenican+flurtamone (1250+100+250 g/ha) respectively were followed in mid-March (Zadoks: 23) by one of the following treatments: none, propoxycarbazone-sodium + vegetable oil (42 g/ha + 1 l/ha), mesosulfuron-methyl + iodosulfuron-methyl-sodium (+mefenpyr-diethyl) + vegetable oil (15+3 (+45) g/ha + 1 l/ha), clodinafop-propargyl (+cloquintocet-mexyl) {60 (+15) g/ha} and flupyrsulfuron-methyl+metsulfuron-methyl (10+5 g/ha). Systems based on clodinafop-propargyl, propoxycarbazone-sodium or flupyrsulfuron-methyl+metsulfuron-methyl resulted in poor supplementary control of blackgrass compared to preemergence herbicide application only. On the contrary, systems based on postemergence application of mesosulfuron-methyl + iodosulfuron-methyl-sodium resulted in excellent control. In most cases the few surviving plants failed to produce inflorescences. In Experiment 2, fall applications in the 3 leaves stage (Zadoks: 13) of prosulfocarb + isoxaben (4000+75 g/ha), flufenacet + diflufenican + isoxaben (240+120+75 g/ha) and flufenacet + pendimethalin + chlorotoluron (180+900+1000 g/ha) respectively were followed in mid-March (Zadoks: 23) by one of the following treatments: none, propoxycarbazone-sodium + vegetable oil (42 g/ha+l l/ha), mesosulfuron-methyl + iodosulfuron-methyl-sodium (+mefenpyr-diethyl) + vegetable oil {15+3 (+45) g/ha + 1 l/ha}, clodinafop-propargyl (+cloquintocet-mexyl) {60 (+15) g/ha}, flupyrsulfuron

  8. Tone compatibility between HDR displays

    Science.gov (United States)

    Bist, Cambodge; Cozot, Rémi; Madec, Gérard; Ducloux, Xavier

    2016-09-01

    High Dynamic Range (HDR) is the latest trend in television technology and we expect an in ux of HDR capable consumer TVs in the market. Initial HDR consumer displays will operate on a peak brightness of about 500-1000 nits while in the coming years display peak brightness is expected to go beyond 1000 nits. However, professionally graded HDR content can range from 1000 to 4000 nits. As with Standard Dynamic Range (SDR) content, we can expect HDR content to be available in variety of lighting styles such as low key, medium key and high key video. This raises concerns over tone-compatibility between HDR displays especially when adapting to various lighting styles. It is expected that dynamic range adaptation between HDR displays uses similar techniques as found with tone mapping and tone expansion operators. In this paper, we survey simple tone mapping methods of 4000 nits color-graded HDR content for 1000 nits HDR displays. We also investigate tone expansion strategies when HDR content graded in 1000 nits is displayed on 4000 nits HDR monitors. We conclude that the best tone reproduction technique between HDR displays strongly depends on the lighting style of the content.

  9. Texture-Based Correspondence Display

    Science.gov (United States)

    Gerald-Yamasaki, Michael

    2004-01-01

    Texture-based correspondence display is a methodology to display corresponding data elements in visual representations of complex multidimensional, multivariate data. Texture is utilized as a persistent medium to contain a visual representation model and as a means to create multiple renditions of data where color is used to identify correspondence. Corresponding data elements are displayed over a variety of visual metaphors in a normal rendering process without adding extraneous linking metadata creation and maintenance. The effectiveness of visual representation for understanding data is extended to the expression of the visual representation model in texture.

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

    Science.gov (United States)

    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.

  11. Ultraminiature, Micropower Multipurpose Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — High information content electronic displays remain the most difficult element of the human-machine interface to effectively miniaturize. Mobile applications need a...

  12. 41 CFR 102-75.600 - What happens if HUD does not approve any applications for self-help housing or housing assistance...

    Science.gov (United States)

    2010-07-01

    ... not approve any applications for self-help housing or housing assistance use? 102-75.600 Section 102... Disposal Property for Providing Self-Help Housing Or Housing Assistance § 102-75.600 What happens if HUD does not approve any applications for self-help housing or housing assistance use? In the absence of an...

  13. Implementation of PIC Based LED Displays

    OpenAIRE

    Htet Htet Thit San; Chaw Myat Nwe; Hla Myo Tun

    2014-01-01

    This paper explains the project which is a special kind of LED Display Board for performing dance movement according to the rhythm of music. Nowadays, LED display boards are widely used in advertising and other applications. LED display boards can also be used indoors or outdoors. The objective of this system is to design a display panel by using several dozens of LED matrix display. The display pattern can desire to be changed easily and modified by the user. This LED display...

  14. On-line data display

    Science.gov (United States)

    Lang, Sherman Y. T.; Brooks, Martin; Gauthier, Marc; Wein, Marceli

    1993-05-01

    A data display system for embedded realtime systems has been developed for use as an operator's user interface and debugging tool. The motivation for development of the On-Line Data Display (ODD) have come from several sources. In particular the design reflects the needs of researchers developing an experimental mobile robot within our laboratory. A proliferation of specialized user interfaces revealed a need for a flexible communications and graphical data display system. At the same time the system had to be readily extensible for arbitrary graphical display formats which would be required for data visualization needs of the researchers. The system defines a communication protocol transmitting 'datagrams' between tasks executing on the realtime system and virtual devices displaying the data in a meaningful way on a graphical workstation. The communication protocol multiplexes logical channels on a single data stream. The current implementation consists of a server for the Harmony realtime operating system and an application written for the Macintosh computer. Flexibility requirements resulted in a highly modular server design, and a layered modular object- oriented design for the Macintosh part of the system. Users assign data types to specific channels at run time. Then devices are instantiated by the user and connected to channels to receive datagrams. The current suite of device types do not provide enough functionality for most users' specialized needs. Instead the system design allows the creation of new device types with modest programming effort. The protocol, design and use of the system are discussed.

  15. Three-dimensional display technologies

    Science.gov (United States)

    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

  16. Cooperative synthesis of control and display augmentation for a STOL aircraft in the approach and landing task

    Science.gov (United States)

    Garg, Sanjay; Schmidt, David K.

    1988-01-01

    Application of the Cooperative methodology to synthesize control/display augmentation systems for the piloted longitudinal landing task with a modern, statically-unstable, fighter aircraft is considered. Starting with a control augmentation law which yields augmented vehicle dynamics that meet Level I handling qualities specifications, the effect of time-delay in the Head-up-display is studied using model-based criterion. This evaluation showed that even with 'good' conventional dynamics, a realistic value of display time-delay will cause significant deterioration in pilot workload and piloted-system performance. Application of the Cooperative methodology to control augmentation alone resulted in augmented vehicle dynamics which provide direct control of the flight path from the pilot stick. Analytical evaluation of these dynamics indicates that such dynamics might lead to improved pilot ratings over conventional dynamics, especially in the presence of time-delays in the system. Also, application of the methodology to simultaneous synthesis of control augmentation and flight director laws revealed that it might be advantageous to consider the control/display trade-off in the early design stages.

  17. To 'display' or not to 'display'- that is the peptide

    CSIR Research Space (South Africa)

    Crampton, Michael C

    2008-11-01

    Full Text Available Microbial cell surface display is the anchoring of a heterologous protein or peptide (passenger) to the outside of the cell wall as a fusion to a cell surface associated protein (carrier). This technology has been used extensively for both...

  18. 'No power' (green) electrowetting display

    Science.gov (United States)

    Jentsch, Michael; Rawert, Juergen; Jerosch, Dieter; Blankenbach, Karlheinz

    2011-05-01

    Electrowetting displays were first reported in 1981, several approaches were examined. However, ADT's "Droplet- Driven-Displays" technology is the only bistable one which makes them very attractive for energy-saving systems. That means that the power supply can completely shut off after changing the content and it will keep its information for years. More features that make the ADT approach very unique are paper like white appearance (even in the powerless OFFstate) and the capability for backlighting (most of the other e-paper technologies like electrophoretics can not be backlighted). Further achievements are a white state reflectance of about 70% resulting in sunlight readability and a pixel size in the range from 0.3mm to 10mm. Summarizing, ADT's electrowetting technology is highly suitable for lowest power (means eco-friendly or "green") displays.

  19. In vitro and ex-vivo cellular antioxidant protection and cognitive enhancing effects of an extract of Polygonum minus Huds (Lineminus™) demonstrated in a Barnes Maze animal model for memory and learning.

    Science.gov (United States)

    George, Annie; Ng, Chee Perng; O'Callaghan, Matthew; Jensen, Gitte S; Wong, Hoi Jin

    2014-05-19

    Polygonum minus Huds.is a culinary flavouring that is common in South East Asian cuisine and as a remedy for diverse maladies ranging from indigestion to poor eyesight. The leaves of this herb have been reported to be high in antioxidants. Flavonoids which have been associated with memory, cognition and protection against neurodegeneration were found in P. minus. This study examined a P. minus aqueous extract (Lineminus™) for its antioxidant activity using the Oxygen Radical Absorbance Capacity (ORAC) assay, the ex vivo Cellular Antioxidant Protection of erythrocytes (CAP-e) assays and for potential anticholinesterase activity in vitro. Cognitive function and learning of Lineminus™ was evaluated using scopolamine induced cognition deficits in a Barnes maze, rodent model of cognition. The extract displayed in vitro antioxidant activity with a total ORAC value of 16,964 μmole TE/gram. Cellular antioxidant protection from free radical damage using the CAP-e assay, with an IC50 of 0.58 g/L for inhibition of cellular oxidative damage, was observed. The extract inhibited cholinesterase activity with an IC50 of 0.04 mg/ml with a maximum inhibition of 68%. In a rodent model of cognition using scopolamine induced cognition deficits in the Barnes maze, the extract attenuated scopolamine induced disruptions in learning at the higher dose of 100 mg/kg. These data shows that P. minus possesses antioxidant and anticholinesterase activity and demonstrated enhanced cognition in vivo. The data suggest neuroprotective properties of the extract.

  20. Drag and drop display & builder

    Energy Technology Data Exchange (ETDEWEB)

    Bolshakov, Timofei B.; Petrov, Andrey D.; /Fermilab

    2007-12-01

    The Drag and Drop (DnD) Display & Builder is a component-oriented system that allows users to create visual representations of data received from data acquisition systems. It is an upgrade of a Synoptic Display mechanism used at Fermilab since 2002. Components can be graphically arranged and logically interconnected in the web-startable Project Builder. Projects can be either lightweight AJAX- and SVG-based web pages, or they can be started as Java applications. The new version was initiated as a response to discussions between the LHC Controls Group and Fermilab.

  1. NIST display colorimeter calibration facility

    Science.gov (United States)

    Brown, Steven W.; Ohno, Yoshihiro

    2003-07-01

    A facility has been developed at the National Institute of Standards and Technology (NIST) to provide calibration services for color-measuring instruments to address the need for improving and certifying the measurement uncertainties of this type of instrument. While NIST has active programs in photometry, flat panel display metrology, and color and appearance measurements, these are the first services offered by NIST tailored to color-measuring instruments for displays. An overview of the facility, the calibration approach, and associated uncertainties are presented. Details of a new tunable colorimetric source and the development of new transfer standard instruments are discussed.

  2. 40 CFR 91.1007 - Display exemption.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Display exemption. 91.1007 Section 91....1007 Display exemption. An uncertified marine SI engine is a display engine when it is to be used solely for display purposes, will only be operated incident and necessary to the display purpose, and...

  3. 40 CFR 89.907 - Display exemption.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Display exemption. 89.907 Section 89....907 Display exemption. Where an uncertified nonroad engine is a display engine to be used solely for display purposes, will only be operated incident and necessary to the display purpose, and will not be...

  4. Display Apple M7649Zm

    CERN Multimedia

    2001-01-01

    It was Designed for the Power Mac G4. This Apple studio display gives you edge-to-edge distortion-free images. With more than 16.7 million colors and 1,280 x 1,024 dpi resolution, you view brilliant and bright images on this Apple 17-inch monitor.

  5. Real Time Sonic Boom Display

    Science.gov (United States)

    Haering, Ed

    2014-01-01

    This presentation will provide general information about sonic boom mitigation technology to the public in order to supply information to potential partners and licensees. The technology is a combination of flight data, atmospheric data and terrain information implemented into a control room real time display for flight planning. This research is currently being performed and as such, any results and conclusions are ongoing.

  6. Solar active region display system

    Science.gov (United States)

    Golightly, M.; Raben, V.; Weyland, M.

    2003-04-01

    The Solar Active Region Display System (SARDS) is a client-server application that automatically collects a wide range of solar data and displays it in a format easy for users to assimilate and interpret. Users can rapidly identify active regions of interest or concern from color-coded indicators that visually summarize each region's size, magnetic configuration, recent growth history, and recent flare and CME production. The active region information can be overlaid onto solar maps, multiple solar images, and solar difference images in orthographic, Mercator or cylindrical equidistant projections. Near real-time graphs display the GOES soft and hard x-ray flux, flare events, and daily F10.7 value as a function of time; color-coded indicators show current trends in soft x-ray flux, flare temperature, daily F10.7 flux, and x-ray flare occurrence. Through a separate window up to 4 real-time or static graphs can simultaneously display values of KP, AP, daily F10.7 flux, GOES soft and hard x-ray flux, GOES >10 and >100 MeV proton flux, and Thule neutron monitor count rate. Climatologic displays use color-valued cells to show F10.7 and AP values as a function of Carrington/Bartel's rotation sequences - this format allows users to detect recurrent patterns in solar and geomagnetic activity as well as variations in activity levels over multiple solar cycles. Users can customize many of the display and graph features; all displays can be printed or copied to the system's clipboard for "pasting" into other applications. The system obtains and stores space weather data and images from sources such as the NOAA Space Environment Center, NOAA National Geophysical Data Center, the joint ESA/NASA SOHO spacecraft, and the Kitt Peak National Solar Observatory, and can be extended to include other data series and image sources. Data and images retrieved from the system's database are converted to XML and transported from a central server using HTTP and SOAP protocols, allowing

  7. JTEC panel on display technologies in Japan

    Science.gov (United States)

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

    1992-01-01

    This report is one in a series of reports that describes research and development efforts in Japan in the area of display technologies. The following are included in this report: flat panel displays (technical findings, liquid crystal display development and production, large flat panel displays (FPD's), electroluminescent displays and plasma panels, infrastructure in Japan's FPD industry, market and projected sales, and new a-Si active matrix liquid crystal display (AMLCD) factory); materials for flat panel displays (liquid crystal materials, and light-emissive display materials); manufacturing and infrastructure of active matrix liquid crystal displays (manufacturing logistics and equipment); passive matrix liquid crystal displays (LCD basics, twisted nematics LCD's, supertwisted nematic LCD's, ferroelectric LCD's, and a comparison of passive matrix LCD technology); active matrix technology (basic active matrix technology, investment environment, amorphous silicon, polysilicon, and commercial products and prototypes); and projection displays (comparison of Japanese and U.S. display research, and technical evaluation of work).

  8. Display Sharing: An Alternative Paradigm

    Science.gov (United States)

    Brown, Michael A.

    2010-01-01

    The current Johnson Space Center (JSC) Mission Control Center (MCC) Video Transport System (VTS) provides flight controllers and management the ability to meld raw video from various sources with telemetry to improve situational awareness. However, maintaining a separate infrastructure for video delivery and integration of video content with data adds significant complexity and cost to the system. When considering alternative architectures for a VTS, the current system's ability to share specific computer displays in their entirety to other locations, such as large projector systems, flight control rooms, and back supporting rooms throughout the facilities and centers must be incorporated into any new architecture. Internet Protocol (IP)-based systems also support video delivery and integration. IP-based systems generally have an advantage in terms of cost and maintainability. Although IP-based systems are versatile, the task of sharing a computer display from one workstation to another can be time consuming for an end-user and inconvenient to administer at a system level. The objective of this paper is to present a prototype display sharing enterprise solution. Display sharing is a system which delivers image sharing across the LAN while simultaneously managing bandwidth, supporting encryption, enabling recovery and resynchronization following a loss of signal, and, minimizing latency. Additional critical elements will include image scaling support, multi -sharing, ease of initial integration and configuration, integration with desktop window managers, collaboration tools, host and recipient controls. This goal of this paper is to summarize the various elements of an IP-based display sharing system that can be used in today's control center environment.

  9. Transparent stereoscopic display and application

    Science.gov (United States)

    Ranieri, Nicola; Seifert, Hagen; Gross, Markus

    2014-03-01

    Augmented reality has become important to our society as it can enrich the actual world with virtual information. Transparent screens offer one possibility to overlay rendered scenes with the environment, acting both as display and window. In this work, we review existing transparent back-projection screens for the use with active and passive stereo. Advantages and limitations are described and, based on these insights, a passive stereoscopic system using an anisotropic back-projection foil is proposed. To increase realism, we adapt rendered content to the viewer's position using a Kinect tracking system, which adds motion parallax to the binocular cues. A technique well known in control engineering is used to decrease latency and increase frequency of the tracker. Our transparent stereoscopic display prototype provides immersive viewing experience and is suitable for many augmented reality applications.

  10. Game engines and immersive displays

    Science.gov (United States)

    Chang, Benjamin; Destefano, Marc

    2014-02-01

    While virtual reality and digital games share many core technologies, the programming environments, toolkits, and workflows for developing games and VR environments are often distinct. VR toolkits designed for applications in visualization and simulation often have a different feature set or design philosophy than game engines, while popular game engines often lack support for VR hardware. Extending a game engine to support systems such as the CAVE gives developers a unified development environment and the ability to easily port projects, but involves challenges beyond just adding stereo 3D visuals. In this paper we outline the issues involved in adapting a game engine for use with an immersive display system including stereoscopy, tracking, and clustering, and present example implementation details using Unity3D. We discuss application development and workflow approaches including camera management, rendering synchronization, GUI design, and issues specific to Unity3D, and present examples of projects created for a multi-wall, clustered, stereoscopic display.

  11. Human Vocabulary Use as Display

    Directory of Open Access Journals (Sweden)

    Jeremy Rosenberg

    2008-07-01

    Full Text Available The average human vocabulary consists of approximately 20,000 word families, yet only 6000-7000 word families are required to understand most communication. One possible explanation for this level of redundancy is that vocabulary size is selected as a fitness indicator and is used for display. Human vocabulary size correlates highly with measurable intelligence and when choosing potential mates individuals actively prefer other correlates of intelligence, such as education. Here we show that males used more low frequency words after an imaginary romantic encounter with a young female shown in a photograph relative to when they viewed photographs of older females. Females used fewer low frequency words when they imagined a romantic encounter with a young male shown in a photograph relative to when they viewed photographs of older males. These differences in male and female vocabulary displays may be related to sex differences in investment costs in offspring.

  12. Preliminary display comparison for dental diagnostic applications

    Science.gov (United States)

    Odlum, Nicholas; Spalla, Guillaume; van Assche, Nele; Vandenberghe, Bart; Jacobs, Reinhilde; Quirynen, Marc; Marchessoux, Cédric

    2012-02-01

    The aim of this study is to predict the clinical performance and image quality of a display system for viewing dental images. At present, the use of dedicated medical displays is not uniform among dentists - many still view images on ordinary consumer displays. This work investigated whether the use of a medical display improved the perception of dental images by a clinician, compared to a consumer display. Display systems were simulated using the MEdical Virtual Imaging Chain (MEVIC). Images derived from two carefully performed studies on periodontal bone lesion detection and endodontic file length determination, were used. Three displays were selected: a medical grade one and two consumer displays (Barco MDRC-2120, Dell 1907FP and Dell 2007FPb). Some typical characteristics of the displays are evaluated by measurements and simulations like the Modulation Function (MTF), the Noise Power Spectrum (NPS), backlight stability or calibration. For the MTF, the display with the largest pixel pitch has logically the worst MTF. Moreover, the medical grade display has a slightly better MTF and the displays have similar NPS. The study shows the instability effect for the emitted intensity of the consumer displays compared to the medical grade one. Finally the study on the calibration methodology of the display shows that the signal in the dental images will be always more perceivable on the DICOM GSDF display than a gamma 2,2 display.

  13. The case for transparent depth display

    NARCIS (Netherlands)

    Kooi, F.L.

    2003-01-01

    Purpose: The continuing developments in display technology have resulted in the ability to present increasing amounts of data on computer displays. One of the coming break-throughs is generally believed to be the introduction of '3-D displays': displays with a true sense of depth. Though these types

  14. Density Gradient Columns for Chemical Displays.

    Science.gov (United States)

    Guenther, William B.

    1986-01-01

    Procedures for preparing density gradient columns for chemical displays are presented. They include displays illustrating acid-base reactions, metal ion equilibria, and liquid density. The lifetime of these metastable displays is surprising, some lasting for months in display cabinets. (JN)

  15. 40 CFR 90.907 - Display exemption.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Display exemption. 90.907 Section 90... of Nonroad Engines from Regulations § 90.907 Display exemption. Where an uncertified nonroad engine is a display engine to be used solely for display purposes, will only be operated incident and...

  16. 40 CFR 85.1707 - Display exemption.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false Display exemption. 85.1707 Section 85... Engines § 85.1707 Display exemption. Where an uncertified vehicle or engine is a display vehicle or engine to be used solely for display purposes, will not be operated on the public streets or highways except...

  17. Full color waveguide liquid crystal display.

    Science.gov (United States)

    Zhou, Xiaochen; Qin, Guangkui; Wang, Long; Chen, Zhuo; Xu, Xiaoguang; Dong, Youmei; Moheghi, Alireza; Yang, Deng-Ke

    2017-09-15

    We developed a waveguide liquid crystal display from a liquid crystal (LC)/polymer composite. It does not need polarizers or color filters. It is illuminated by color LEDs installed on its edge. The light produced by the edge LEDs is coupled into the display and then waveguided through the display. When the LC is in the transparent state, the incident light is waveguided through and no light comes out of the viewing side of the display. When the LC is in the scattering state, the incident light is scattered and comes out of the display. It can be used either for transparent display or for direct view display. The composite has a submillisecond response time, and a field sequential scheme can be used to display full color images. Because the display does not need polarizers or color filters, its energy efficiency is much higher than current liquid crystal displays.

  18. Tympanic membrane temperature decreases during head up tilt

    DEFF Research Database (Denmark)

    Lorr, David; Lund, Anton; Fredrikson, Mats

    2017-01-01

    monitored by transcranial Doppler which determined the mean blood flow velocity in the middle cerebral artery (MCA Vmean) and by near infrared spectroscopy assessed frontal lobe oxygenation (ScO2), while skin blood flow (SkBF) was evaluated by laser Doppler flowmetry. RESULTS: During HUT, TMT decreased by 0...

  19. HEADS UP : Sensorimotor control of the head-neck system

    NARCIS (Netherlands)

    Forbes, P.A.

    2014-01-01

    Head-neck stabilization is inherently challenging even when stationary, requiring constant vigilance to counter the downward pull of gravity. It involves a highly complex biomechanical system comprised of a large mass (the head) balanced on top of seven vertebrae (the neck), that are in turn

  20. Heads Up! a Calculation- & Jargon-Free Approach to Statistics

    Science.gov (United States)

    Giese, Alan R.

    2012-01-01

    Evaluating the strength of evidence in noisy data is a critical step in scientific thinking that typically relies on statistics. Students without statistical training will benefit from heuristic models that highlight the logic of statistical analysis. The likelihood associated with various coin-tossing outcomes gives students such a model. There…

  1. F-18 cockpit and instrument panel

    Science.gov (United States)

    1995-01-01

    NASA's Dryden Flight Research Center's F/A-18 chase and support aircraft retains the basic fighter plane cockpit controls with some exceptions. The pilot's center control stick is relatively typical of a modern fighter aircraft. This F-18 has no weapons delivery capability. The primary cockpit displays include a left- and right-side cathode-ray tube display, referred to as the DDIs, and the heads-up display (HUD). The DDIs and HUD are generally used to display primary flight condition information such as airspeed, altitude, altitude rate, attitude, heading, etc. Other flight conditions displayed include angle of attack (AOA), Mach number, and load factor. The HUD also provides primary flight condition information to the pilot without having to refer to the DDIs. Select flight controls information also can be presented on the HUD. The twenty pushbuttons located on the periphery of each DDI are used to select a variety of displays for pilot interrogation of F-18 systems. These displays are pilot selectable and menu driven.

  2. Phenolic composition, in vitro antioxidant effects and tyrosinase inhibitory activity of three Algerian Mentha species: M. spicata (L.), M. pulegium (L.) and M. rotundifolia (L.) Huds (Lamiaceae)

    OpenAIRE

    Brahmi, Fatiha; Hauchard, Didier; Guendouze, Naima; Madani, Khodir; Kiendrebeogo, Martin; Kamagaju, Léocadie; Stévigny, Caroline; Chibane, Mohamed; Duez, Pierre

    2015-01-01

    International audience; The leaves of three Mentha species harvested in Algeria, Mentha spicata L. (MS), Mentha pulegium L. (MP) and Mentha rotundifolia (L.) Huds (MR) were examined for their content in polyphenols and for some activities-linked biological properties these could impart. The contents in total phenolics (TPC) and flavonoids (TFC) were evaluated by the Folin–Ciocalteu and the aluminum chloride methods, respectively. Whereas MS showed the highest TPC (12.0 ± 0.3 mg gallic acid eq...

  3. Plastic Substrates for Flexible Displays

    Science.gov (United States)

    Ito, Hisashi; Oka, Wataru; Goto, Hideki; Umeda, Hideo

    2006-05-01

    New flexible fibrous glass-reinforced plastic (FRP) substrates for flat panel displays were developed. Optimizing the composition of the FRP by adjusting the difference in refractive index between a matrix resin and a glass fiber enabled the coexistence of a high transparency and a low coefficient of thermal expansion (CTE). An excellent smooth surface morphology was confirmed by the formulation of a coating resin. The stability of moisture impermeability depended on the surface smoothness and adhesion between a barrier layer and the coating layer. The moisture permeation rates of barrier substrates were below detection limits (<0.01 g m-2 day-1) on standard measurement equipment.

  4. Síncope no idoso: utilidade diagnóstica da massagem do seio carotídeo na posição ortostática durante o "tilt test" Syncope in the elderly: diagnostic utility of carotid sinus massage in the head-up tilt test

    Directory of Open Access Journals (Sweden)

    Marcos Benchimol

    2003-03-01

    Full Text Available Um senhor aposentado veio à consulta com história de desmaios há vários meses e uma série de exames cardiológicos e de neuroimagem inconclusivos. Medicado com carbamazepina, os desmaios persistiram, ocasionando ferimentos na face e nos braços. Durante o "tilt test" não sensibilizado farmacologicamente, a massagem do seio carotídeo na posição ortostática (mesa inclinada a 60° produziu assistolia, perda da consciência e queda drástica da pressão arterial por 5 segundos. A mesma manobra na posição supina não provocou sintomas ou alterações hemodinâmicas. Implantado marca-passo de dupla câmara e suspensa a carbamazepina, os desmaios não se repetiram ao longo dos 18 meses de acompanhamento, confirmando o diagnóstico de hipersensibilidade do seio carotídeo com resposta cárdio-inibitória. Este caso ilustra e reafirma a utilidade do "tilt test" e da inclusão da massagem dos seios carotídeos na posição ortostática no protocolo de investigação de todo paciente com síncope de causa inaparente.A 71-year-old man presented with a 6-month history of fainting. Consciousness was quickly regained without clouding or confusion. Ancillary investigations were inconclusive and he was treated with carbamazepine. The fainting spells did not cease and he was referred for a tilt-table test exam. In the head-up position (table tilted at 60°, massage of the carotid sinus was immediately followed by asystole, unconsciousness, and a sharp drop in arterial pressure for 5 seconds. The same procedure in the lying position did not elicit clinical symptoms or hæmodynamic imbalance. A diagnosis of carotid sinus hypersensitivity with a cardio-inhibitory response pattern was made. Carbamazepine was withdrawn and a double-chamber pacemaker was implanted in his right ventricle. He remained symptom-free for the ensuing 18 months. This case supports the diagnostic utility of carotid sinus massage during the head-up tilt test in patients with

  5. Interruption and Pausing of Public Display Games

    DEFF Research Database (Denmark)

    Feuchtner, Tiare; Walter, Robert; Müller, Jörg

    2016-01-01

    We present a quantitative and qualitative analysis of interruptions of interaction with a public display game, and explore the use of a manual pause mode in this scenario. In previous public display installations we observed users frequently interrupting their interaction. To explore ways...... that interactions with public displays are considerably intermissive, and that users mostly interrupt interaction to socialize and mainly approach public displays in groups. We conclude that, as a typical characteristic of public display interaction, interruptions deserve consideration. However, manual pause modes...... are not well suited for games on public displays. Instead, interruptions should be implicitly supported by the application design....

  6. Display elements and gaps: a comparison of flat panel display characteristics

    NARCIS (Netherlands)

    Spenkelink, G.P.J.; Besuijen, J.

    1992-01-01

    The relation between typical flat panel display characteristics and display quality was studied. Subjective preferences were obtained with respect to simulated black-on-white flat panel displays. The displays differed in the sort of separation between the display elements and the shape of these

  7. Minimalism context-aware displays.

    Science.gov (United States)

    Cai, Yang

    2004-12-01

    Despite the rapid development of cyber technologies, today we still have very limited attention and communication bandwidth to process the increasing information flow. The goal of the study is to develop a context-aware filter to match the information load with particular needs and capacities. The functions include bandwidth-resolution trade-off and user context modeling. From the empirical lab studies, it is found that the resolution of images can be reduced in order of magnitude if the viewer knows that he/she is looking for particular features. The adaptive display queue is optimized with real-time operational conditions and user's inquiry history. Instead of measuring operator's behavior directly, ubiquitous computing models are developed to anticipate user's behavior from the operational environment data. A case study of the video stream monitoring for transit security is discussed in the paper. In addition, the author addresses the future direction of coherent human-machine vision systems.

  8. Simplified Night Sky Display System

    Science.gov (United States)

    Castellano, Timothy P.

    2010-01-01

    A document describes a simple night sky display system that is portable, lightweight, and includes, at most, four components in its simplest configuration. The total volume of this system is no more than 10(sup 6) cm(sup 3) in a disassembled state, and weighs no more than 20 kilograms. The four basic components are a computer, a projector, a spherical light-reflecting first surface and mount, and a spherical second surface for display. The computer has temporary or permanent memory that contains at least one signal representing one or more images of a portion of the sky when viewed from an arbitrary position, and at a selected time. The first surface reflector is spherical and receives and reflects the image from the projector onto the second surface, which is shaped like a hemisphere. This system may be used to simulate selected portions of the night sky, preserving the appearance and kinesthetic sense of the celestial sphere surrounding the Earth or any other point in space. These points will then show motions of planets, stars, galaxies, nebulae, and comets that are visible from that position. The images may be motionless, or move with the passage of time. The array of images presented, and vantage points in space, are limited only by the computer software that is available, or can be developed. An optional approach is to have the screen (second surface) self-inflate by means of gas within the enclosed volume, and then self-regulate that gas in order to support itself without any other mechanical support.

  9. Holographic Waveguided See-Through Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — To address the NASA need for lightweight, space suit-mounted displays, Luminit proposes a novel Holographic Waveguided See-Through Display. Our proposed Holographic...

  10. OZ: An Innovative Primary Flight Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed SBIR project will develop OZ, an innovative primary flight display for aircraft. The OZ display, designed from "first principles" of vision science,...

  11. X-Windows Widget for Image Display

    Science.gov (United States)

    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.

  12. National Weather Service: Watch, Warning, Advisory Display

    Science.gov (United States)

    ... Contact Us SPC Feedback NWS Watch, Warning, Advisory Display NWS Warnings and Advisories on this map become ... below): A new browser window will open to display these text products. Convective/Tropical Weather Flooding Winter ...

  13. Psychological Implications for Submarine Display Design

    Science.gov (United States)

    2005-08-01

    This paper addresses a number of psychological issues pertaining to display design . We review the literature comparing 3-D and 2-D displays and...perceptual, cognitive and ecological factors that are relevant to display design for submarine environments. The Generative Transformational approach...to visual perception is outlined and the relevance of transformational theory to display design is discussed. The paper also discusses a number of

  14. A Comprehensive Process for Display Systems Development.

    Science.gov (United States)

    Simcox, William A.

    A comprehensive development process for display design, focusing on computer-generated cathode ray tube (CRT) displays is presented. A framework is created for breaking the display into its component parts, used to guide the design process. The objective is to design or select the most cost effective graphics solution (hardware and software) to…

  15. How Visual Displays Affect Cognitive Processing

    Science.gov (United States)

    McCrudden, Matthew T.; Rapp, David N.

    2017-01-01

    We regularly consult and construct visual displays that are intended to communicate important information. The power of these displays and the instructional messages we attempt to comprehend when using them emerge from the information included in the display and by their spatial arrangement. In this article, we identify common types of visual…

  16. Directional light scanning 3-D display

    Science.gov (United States)

    Aoki, Yoji; Horimai, Hideyoshi; Lim, Pang Boey; Watanabe, Kenjiro; Inoue, Mitsuteru

    2009-11-01

    This paper presents a new Three-Dimensional display method, so called Directional Light Scanning 3D display. By using holographic screen as a beam scanner and high frame rate Spatial Light Modulator (SLM), this method requires only one SLM but can display high resolution 3D images, solving the usual problem of lack of resolution.

  17. Visual Merchandising through Display: Advertising Services Occupations.

    Science.gov (United States)

    Maurer, Nelson S.

    The increasing use of displays by businessmen is creating a demand for display workers. This demand may be met by preparing high school students to enter the field of display. Additional workers might be recruited by offering adult training programs for individuals working within the stores. For this purpose a curriculum guide has been developed…

  18. 27 CFR 6.55 - Display service.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Display service. 6.55... OF THE TREASURY LIQUORS âTIED-HOUSEâ Unlawful Inducements Paying for Advertising, Display Or Distribution Service § 6.55 Display service. Industry member reimbursements to retailers for setting up product...

  19. 9 CFR 392.6 - Public display.

    Science.gov (United States)

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Public display. 392.6 Section 392.6... INSPECTION SERVICE ADMINISTRATIVE PROVISIONS PETITIONS FOR RULEMAKING § 392.6 Public display. (a) All... information that should not be put on public display. If the petitioner fails to submit the certification...

  20. 14 CFR 21.161 - Display.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Display. 21.161 Section 21.161 Aeronautics... PROCEDURES FOR PRODUCTS AND PARTS Production Certificates § 21.161 Display. The holder of a production certificate shall display it prominently in the main office of the factory in which the product concerned is...

  1. CERN students display their work

    CERN Multimedia

    Anaïs Schaeffer

    2011-01-01

    The first poster session by students working on the LHC experiments, organised by the LPCC, was a great success. Showcasing the talents of over a hundred young physicists from all over the world, it was an opportunity for everyone at CERN to check out the wide range of research work being done by the new generation of physicists at CERN.   At 5.30 p.m. on Wednesday 23 March, the first poster session by CERN students took place in Restaurant No.1, where no fewer than 87 posters went on public display. The students were split into 8 groups according to their research field* and all were on hand to answer the questions of an inquisitive audience. TH Department's Michelangelo Mangano, who is head of the LHC Physics Centre at CERN (LPCC) and is responsible for the initiative, confirms that nothing was left to chance, even the choice of date: "We wanted to make the most of the general enthusiasm around the winter conferences and the meeting of the LHC Experiments Committee to present the stud...

  2. Citizenship displayed by disabled people

    Directory of Open Access Journals (Sweden)

    Eliana Prado Carlino

    2010-12-01

    Full Text Available By investigating the processes by which successful teachers become activate citizens and by listening to the diversity and richness of their life and formation stories, this work became possible. Its aim is to display some of the utterances of two Down Syndrome individuals and their active-citizenship activities. Their stories were told in the reports of two teachers when describing their personal and professional history, and were considered to be an integral part of it. Thus, some of the utterances and perceptions with which these two individuals elaborate their references, their worldview and their active-citizenship activity are evidenced in this paper. This article is based on the language conceptions of Vygotsky and Bakhtin who defend the idea that the group and the social mentality are ingrain in the individual. Hence, the history of one person reveals that of many others, since there is a deep link between the individual and the social in the formation of a subjective worldview. As a result, it can be easily seen that the utterances expressed by the participants in this research cannot be considered strictly individual because enunciation is social in nature. Despite the fact that the utterances are those of individuals, they manifest a collective reality. This demonstrates the real advantages and possibilities that deficient people get from their participation and intervention in society.

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

    Science.gov (United States)

    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.

  4. Optical advantages in retinal scanning displays

    Science.gov (United States)

    Urey, Hakan

    2000-06-01

    Virtual Retinal DisplayTM technology is a retinal scanning display (RSD) technology being developed at Microvision, Inc., for a variety of applications including microdisplays. An RSD scans a modulated light beam onto a viewer's retina to produce a perceived image. Red, green and blue light sources, such as lasers, laser diodes or LEDs combine with Microvision's proprietary miniaturized scanner designs to make the RSD very well suited for head-worn and helmet-mounted displays (HMD). This paper compares the features of RSD technology to other display technologies such as the cathode ray tubes or matrix-based displays for HMD and other wearable display applications, and notes important performance advantages due to the number of pixel- generating elements. Also discussed are some fundamental optical limitations for virtual displays used in the HMD applications.

  5. Conceptual Design of Industrial Process Displays

    DEFF Research Database (Denmark)

    Pedersen, C.R.; Lind, Morten

    1999-01-01

    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...... 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...

  6. The Effects of Aclonifen Treatment Times on the Critical Concentration Values in The Leaves of Blackgrass [Alopecurus Myosuroides Huds. (Poaceae

    Directory of Open Access Journals (Sweden)

    Özgür Kıvılcım Kılınç

    2015-03-01

    Full Text Available The objective of this study was to determine the effect of different treatments times of aclonifen, which is used as pre- and post-emergence herbicide in the control of blackgrass [Alopecurus myosuroides Huds. (Poaceae] on the critical concentration values resulting in 100% success. The plants of A. myosuroides were grown on pots under greenhouse conditions. In the study, to determine the herbicide contraction on the plant tissues accurately, 14C-aclonifen was added to the aclonifen suspension concentrate (SC Challenge 600 and suggested dose (270 g e.m. da-1 was treated. The trials were initiated in march and april of 2011 and the treatments were applied the first (pre-emergence, 20th (early post-emergence and 40th (later post-emergence days. 10-day after each treatment, the symptoms were evaluated; and, the fresh and dry weights of the leaves were recovered. The aclonifen concentration on the fresh and dry leave samples were determined by the measuring the total radioactivity amount in dpm using liquid scintillation analyzer. The results of the trials indicated that the suggested doses of aclonifen critical concentration on the A. myosuroides leaves were: 1.58 ± 0.16 nmol/mg dry weight for pre-emergence; 3.04 ± 1.57 and 0.94 ± 0.81 nmol/mg dry weight for early and late post-emergence, respectively. It was also determined that the treatment of aclonifen with suggested dose when applied either as pre-emerge or as early post emergence until the plants reach 1-2 leaf stage before emergence or until 1-2 leaf stage result in 100% control; however, the treatments applied after 3-4 leaf stage are not successful although they result in delays of plant development.

  7. Miniaturized LEDs for flat-panel displays

    Science.gov (United States)

    Radauscher, Erich J.; Meitl, Matthew; Prevatte, Carl; Bonafede, Salvatore; Rotzoll, Robert; Gomez, David; Moore, Tanya; Raymond, Brook; Cok, Ronald; Fecioru, Alin; Trindade, António Jose; Fisher, Brent; Goodwin, Scott; Hines, Paul; Melnik, George; Barnhill, Sam; Bower, Christopher A.

    2017-02-01

    Inorganic light emitting diodes (LEDs) serve as bright pixel-level emitters in displays, from indoor/outdoor video walls with pixel sizes ranging from one to thirty millimeters to micro displays with more than one thousand pixels per inch. Pixel sizes that fall between those ranges, roughly 50 to 500 microns, are some of the most commercially significant ones, including flat panel displays used in smart phones, tablets, and televisions. Flat panel displays that use inorganic LEDs as pixel level emitters (μILED displays) can offer levels of brightness, transparency, and functionality that are difficult to achieve with other flat panel technologies. Cost-effective production of μILED displays requires techniques for precisely arranging sparse arrays of extremely miniaturized devices on a panel substrate, such as transfer printing with an elastomer stamp. Here we present lab-scale demonstrations of transfer printed μILED displays and the processes used to make them. Demonstrations include passive matrix μILED displays that use conventional off-the shelf drive ASICs and active matrix μILED displays that use miniaturized pixel-level control circuits from CMOS wafers. We present a discussion of key considerations in the design and fabrication of highly miniaturized emitters for μILED displays.

  8. [Development of platform technology using molecular display].

    Science.gov (United States)

    Shibasaki, Seiji

    2009-11-01

    Techniques for immobilizing proteins on surface of virus or microorganisms, namely molecular display technologies, have played important roles in helping the elucidation of protein-protein interactions in cells and to develop research on drug discovery. Phage display system is well-established and sophisticated; consequently, bioactive low-molecular-weight ligands and proteins significant in pharmaceutical industry have been found. In addition to the development of novel functional proteins by phage display using results from experiments in genomics and proteomics, ribosome display or yeast display systems have been developed as complementary methods. We can select the appropriate method on the basis of the objective. Molecular display using yeast has advantages in production of desired proteins from combinatorial library by flow cytometry. Firstly, principle, development procedure, and latest research in this field are introduced. Thereafter, results of molecular display using yeast for antibodies and their related proteins are presented. Furthermore, display of receptor coupled with intracellular signal transduction -a novel type of molecular display on yeast cell surface- has been created in recent years. The role and potential of molecular display technologies employing yeast cells in drug discovery are discussed.

  9. A multiprimary display model combined with a spatio-temporal behavioral display model for display characterization by simulation

    Science.gov (United States)

    Dolar, Carsten; Lebowsky, Fritz

    2009-01-01

    With the development of fast liquid crystal cells and with advent of backlight units with separate red, green and blue light emitting diodes also first commercial color sequential display emerge. Another technique in commercial application proposes implementing more than three subpixels and thus enhanced color gamut by using multiple color primaries. Also the combination of both color mixture techniques is possible. It is thus desirable to have a simulation workbench at hand that is flexible enough to adapt to the various possibilities of subpixel design and color sequences in display design to evaluate the displayed image in advance. The combination of a multiprimary display model, which can emulate a multiprimary display on a standard RGB LC display, and a spatio-temporal model, that describes LC pixel behavior to arbitrary input signals over time, provides means for simulating the perceived image of a color-sequential display behavior. This article describes the combined model and gives also simulation results that compare advanced displays to conventional vertical stripe RGB LC display.

  10. Microfluidics for electronic paper-like displays.

    Science.gov (United States)

    Shui, Lingling; Hayes, Robert A; Jin, Mingliang; Zhang, Xiao; Bai, Pengfei; van den Berg, Albert; Zhou, Guofu

    2014-07-21

    Displays are ubiquitous in modern life, and there is a growing need to develop active, full color, video-rate reflective displays that perform well in high-light conditions. The core of display technology is to generate or manipulate light in the visible wavelength. Colored fluids or fluids with particles can be used to tune the light intensity (greyscale) or wavelength (colors) of reflective displays by different actuation methods. Microfluidic technology plays an increasing role in fluidic manipulation in microscale devices used in display areas. In this article, we will review microfluidic technologies based on different actuation methods used for display applications: pressure-driven flow, electrophoresis, electroosmosis, electrowetting, magnetic-driven flow, and cell-actuation principles.

  11. Three-dimensional Imaging, Visualization, and Display

    CERN Document Server

    Javidi, Bahram; Son, Jung-Young

    2009-01-01

    Three-Dimensional Imaging, Visualization, and Display describes recent developments, as well as the prospects and challenges facing 3D imaging, visualization, and display systems and devices. With the rapid advances in electronics, hardware, and software, 3D imaging techniques can now be implemented with commercially available components and can be used for many applications. This volume discusses the state-of-the-art in 3D display and visualization technologies, including binocular, multi-view, holographic, and image reproduction and capture techniques. It also covers 3D optical systems, 3D display instruments, 3D imaging applications, and details several attractive methods for producing 3D moving pictures. This book integrates the background material with new advances and applications in the field, and the available online supplement will include full color videos of 3D display systems. Three-Dimensional Imaging, Visualization, and Display is suitable for electrical engineers, computer scientists, optical e...

  12. Evaluating Ambient Displays in the Wild

    DEFF Research Database (Denmark)

    Messeter, Jörn; Molenaar, Daryn

    A prominent issue for evaluating ambient displays has been the conflict between the relative intrusiveness of evaluation methods and the intention to keep the display at the periphery of the user’s attention. There is a general lack of research discussing the difficulties of evaluating ambient...... displays in the wild, and in particular social aspects of use has received little attention. This paper presents a case study of an ambient light display designed for a public setting. Based on results from a non-intrusive in situ evaluation, we argue that viewing ambient displays as features of a broader...... social setting may aid our understanding of issues regarding the evaluation of ambient displays in the wild....

  13. Legibility Implications of Embellished Display Typefaces

    DEFF Research Database (Denmark)

    Beier, Sofie; Sand, Katrine; Starrfelt, Randi

    2017-01-01

    By subjecting participants to brief exposure of single letters in the peripheral visual field, we investigated 1) hemispheric differences in reading of embellished display typefaces, and 2) the legibility difference between different kinds of embellished display typefaces. The test typefaces are ...... affected by swashed features than by a reversed letter stroke, or by a drop shadow. When choosing between different styles of embellished display typefaces, it is therefore recommended to choose typefaces where the letter skeleton is not too complicated to decode....

  14. Optimizing direct response in Internet display advertising

    OpenAIRE

    Aksakallı, Vural

    2013-01-01

    Internet display advertising has grown into a multi-billion dollar a year global industry and direct response campaigns account for about three-quarters of all Internet display advertising. In such campaigns, advertisers reach out to a target audience via some form of a visual advertisement (hereinafter also called “ad”) to maximize short-term sales revenue. In this study, we formulate an advertiser’s revenue maximization problem in direct response Internet display advertisement campaigns as ...

  15. Online Display Advertising Causal Attribution and Evaluation

    OpenAIRE

    BARAJAS ZAMORA, JOEL

    2015-01-01

    The allocation of a given budget to online display advertising as a marketing channel has motivated the development of statistical methods to measure its effectiveness. Recent studies show that display advertising often triggers online users to search for more information on products. Eventually, many of these users convert at the advertiser’s website. A key challenge is to measure the effectiveness of display advertising when users are exposed to multiple unknown advertising channels.We deve...

  16. Legibility implictations of embellished display typefaces

    DEFF Research Database (Denmark)

    Beier, Sofie; Sand, Katrine; Starrfelt, Randi

    2017-01-01

    By subjecting participants to brief exposure of single letters in the peripheral visual field, we investigated 1) hemispheric differences in reading of embellished display typefaces, and 2) the legibility difference between different kinds of embellished display typefaces. The test typefaces...... affected by swashed features than by a reversed letter stroke, or by a drop shadow. When choosing between different styles of embellished display typefaces, it is therefore recommended to choose typefaces where the letter skeleton is not too complicated to decode....

  17. Display of nuclear medicine imaging studies

    CERN Document Server

    Singh, B; Samuel, A M

    2002-01-01

    Nuclear medicine imaging studies involve evaluation of a large amount of image data. Digital signal processing techniques have introduced processing algorithms that increase the information content of the display. Nuclear medicine imaging studies require interactive selection of suitable form of display and pre-display processing. Static imaging study requires pre-display processing to detect focal defects. Point operations (histogram modification) along with zoom and capability to display more than one image in one screen is essential. This album mode of display is also applicable to dynamic, MUGA and SPECT data. Isometric display or 3-D graph of the image data is helpful in some cases e.g. point spread function, flood field data. Cine display is used on a sequence of images e.g. dynamic, MUGA and SPECT imaging studies -to assess the spatial movement of tracer with time. Following methods are used at the investigator's discretion for inspection of the 3-D object. 1) Display of orthogonal projections, 2) Disp...

  18. Microencapsulated Electrophoretic Films for Electronic Paper Displays

    Science.gov (United States)

    Amundson, Karl

    2003-03-01

    Despite the dominance of liquid crystal displays, they do not perform some functions very well. While backlit liquid crystal displays can offer excellent color performance, they wash out in bright lighting and suffer from high power consumption. Reflective liquid crystal displays have limited brightness, making these devices challenging to read for long periods of time. Flexible liquid crystal displays are difficult to manufacture and keep stable. All of these attributes (long battery lifetime, bright reflective appearance, compatibility with flexible substrates) are traits that would be found in an ideal electronic paper display - an updateable substitute for paper that could be employed in electronic books, newspapers, and other applications. I will discuss technologies that are being developed for electronic-paper-like displays, and especially on particle-based technologies. A microencapsulated electrophoretic display technology is being developed at the E Ink corporation. This display film offers offer high brightness and an ink-on-paper appearance, compatibility with flexible substrates, and image stability that can lead to very low power consumption. I will present some of the physical and chemical challenges associated with making display films with high performance.

  19. History Of Holographic Display In Japan

    Science.gov (United States)

    Iwata, Fujio

    1987-06-01

    The first exhibition of holographic display was held at Seibu Museum of Art in Tokyo in 1975 and played a role of opening of the holographic era in Japan. This exhibition and the next big exhibition of holography held at Isetan department store 3 years later in 1978 were really epoch-making facts on holographic display in Japan. Since these two exhibitions, holographic display in Japan has come to attract attention of a lot of people to the new display media, holography. At that time, mass production technology of holograms had not been fully developed yet, and the hologram was so expensive that they were found only at the big event. Some companies and universities still continued research and development to have holograms get into practical applications of display media. Few years later, people became interested in 3-D displays and sometimes many peoples took an interest in holographic display, mainly mass produced embossed type holograms applied to the field of publications, book and magazine, etc. 3-D display booms occurred in the year of Tsukuba Science Expo'85 in 1985 and embossed type hologram became much popular. History of holographic display of Japan in terms of technical development and practical use on laser reconstruction hologram, rainbow hologram, multiplex hologram and lippmann hologram will be introduced.

  20. Refreshable Braille displays using EAP actuators

    Science.gov (United States)

    Bar-Cohen, Yoseph

    2010-04-01

    Refreshable Braille can help visually impaired persons benefit from the growing advances in computer technology. The development of such displays in a full screen form is a great challenge due to the need to pack many actuators in small area without interferences. In recent years, various displays using actuators such as piezoelectric stacks have become available in commercial form but most of them are limited to one line Braille code. Researchers in the field of electroactive polymers (EAP) investigated methods of using these materials to form full screen displays. This manuscript reviews the state of the art of producing refreshable Braille displays using EAP-based actuators.

  1. Human Factors Military Lexicon: Auditory Displays

    National Research Council Canada - National Science Library

    Letowski, Tomasz

    2001-01-01

    .... In addition to definitions specific to auditory displays, speech communication, and audio technology, the lexicon includes several terms unique to military operational environments and human factors...

  2. PENGARUH DISPLAY PRODUK PADA KEPUTUSAN PEMBELIAN KONSUMEN

    Directory of Open Access Journals (Sweden)

    Ina Melati

    2012-11-01

    Full Text Available Most of ritel outlet recently using product display as a one of their best marketing strategy, the reason is quiet easy to be understood, since consumers are too easy to be teased by those kind of beautiful product display that is being displayed by the retail outlet. The good retail outlets are trying their best to design and make the very good product display, so they can attract more consumers and make them not thinking twice to visit their store and purchase lots of thing. Clearly seeing that an attractive product design is able to influence a consumer to make a buying decision. 

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

    Science.gov (United States)

    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.

  4. Optimization of light field display-camera configuration based on display properties in spectral domain.

    Science.gov (United States)

    Bregović, Robert; Kovács, Péter Tamás; Gotchev, Atanas

    2016-02-08

    The visualization capability of a light field display is uniquely determined by its angular and spatial resolution referred to as display passband. In this paper we use a multidimensional sampling model for describing the display-camera channel. Based on the model, for a given display passband, we propose a methodology for determining the optimal distribution of ray generators in a projection-based light field display. We also discuss the required camera setup that can provide data with the necessary amount of details for such display that maximizes the visual quality and minimizes the amount of data.

  5. Characterising laser beams with liquid crystal displays

    CSIR Research Space (South Africa)

    Dudley, Angela L

    2016-09-01

    Full Text Available decomposition of light has been known for a long time, applied mostly to pattern recognition, we illustrate how this technique can be implemented with the use of liquid-crystal displays. We show experimentally how liquid crystal displays can be used to infer...

  6. Ribosome display for improved biotherapeutic molecules.

    Science.gov (United States)

    Rothe, Achim; Hosse, Ralf J; Power, Barbara E

    2006-02-01

    Ribosome display presents an innovative in vitro technology for the rapid isolation and evolution of high-affinity peptides or proteins. Displayed proteins are bound to and recovered from target molecules in multiple rounds of selection in order to enrich for specific binding proteins. No transformation step is necessary, which could lead to a loss of library diversity. A cycle of display and selection can be performed in one day, enabling the existing gene repertoire to be rapidly scanned. Proteins isolated from the panning rounds can be further modified through random or directed molecular evolution for affinity maturation, as well as selected for characteristics such as protein stability, folding and functional activity. Recently, the field of display technologies has become more prominent due to the generation of new scaffolds for ribosome display, isolation of high-affinity human antibodies by phage display, and their implementation in the discovery of novel protein-protein interactions. Applications for this technology extend into the broad field of antibody engineering, proteomics, and synthetic enzymes for diagnostics and therapeutics in cancer, autoimmune and infectious diseases, neurodegenerative diseases and inflammatory disorders. This review highlights the role of ribosome display in drug discovery, discusses advantages and disadvantages of the system, and attempts to predict the future impact of ribosome display technology on the development of novel engineered biopharmaceutical products for biological therapies.

  7. (Hibiscus sabdariffa L.) roots by differential display

    African Journals Online (AJOL)

    aghomotsegin

    2014-12-31

    Dec 31, 2014 ... display reverse transcriptase PCR (DDRT-PCR) was used to compare the overall differences in gene ... Abbreviations: DDRT-PCR, Differential display reverse transcriptase polymerase chain reaction, ESTs, expressed sequence tags; ... Agricultural Research Corporation's Obeid Research Substation in.

  8. A visual-display and storage device

    Science.gov (United States)

    Bosomworth, D. R.; Moles, W. H.

    1972-01-01

    Memory and display device uses cathodochromic material to store visual information and fast phosphor to recall information for display and electronic processing. Cathodochromic material changes color when bombarded with electrons, and is restored to its original color when exposed to light of appropiate wavelength.

  9. Factors affecting dwell times on digital displaying

    Science.gov (United States)

    Williams, A. J.; Harris, R. L., Sr.

    1985-01-01

    A series of exploratory tests were conducted to investigate the effects of advanced display formats and display media on pilot scanning behavior using Langley's oculometer, a desktop flight simulator, a conventional electro-mechanical meter, and various digital displays. The primary task was for the test subject to maintain level flight, on a specific course heading, during moderate turbulence. A secondary task of manually controlling the readout of a display was used to examine the effects of the display format on a subject's scan behavior. Secondary task scan parameters that were evaluated were average dwell time, dwell time histograms, and number of dwells per meter change. The round dial meter demonstrated shorter dwell times and fewer dwells per meter change than the digital displays. The following factors affected digital display scanning behavior: (1) the number of digits; (2) the update rate of the digits; (3) the display media; and (4) the character font. The size of the digits used in these tests (0.28 to 0.50 inches) did not affect scan behavior measures.

  10. Coordinated Displays to Assist Cyber Defenders

    Science.gov (United States)

    2016-09-23

    checks: Detecting satisficing to increase statistical power. Journal of Experimental Social Psychology , 45, 867-872. Scarfone, K., & Mell, P. (2007...regardless of display condition (coordinated or uncoordinated). METHOD Participants & Experimental Design In this experiment, 46 people (19...previous experience in cyber defense. Experimental Design This study featured a single experimental factor, display condition, and a control

  11. Monitor displays in radiology: Part 2

    OpenAIRE

    INDRAJIT, IK; Verma, BS

    2009-01-01

    Monitor displays play an important role in modern radiology practice. Practicing radiologists need to be familiar with the various performance parameters of medical-grade displays. A certain amount of technical knowledge is useful when making purchasing decisions since the right choice of equipment can have a great impact on the accuracy, efficiency, and speed in the radiology department.

  12. 33 CFR 4.02 - Display.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Display. 4.02 Section 4.02 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY GENERAL OMB CONTROL NUMBERS ASSIGNED PURSUANT TO THE PAPERWORK REDUCTION ACT § 4.02 Display. 33 CFR part or section where identified...

  13. 49 CFR 509.2 - Display.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false Display. 509.2 Section 509.2 Transportation Other Regulations Relating to Transportation (Continued) NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION OMB CONTROL NUMBERS FOR INFORMATION COLLECTION REQUIREMENTS § 509.2 Display. 49 CFR...

  14. 41 CFR 60-999.2 - Display.

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 1 2010-07-01 2010-07-01 true Display. 60-999.2 Section 60-999.2 Public Contracts and Property Management Other Provisions Relating to Public Contracts... CONTROL NUMBERS FOR OFCCP INFORMATION COLLECTION REQUIREMENTS § 60-999.2 Display. 41 CFR Part where the...

  15. Display Developer for Firing Room Applications

    Science.gov (United States)

    Bowman, Elizabeth A.

    2013-01-01

    The firing room at Kennedy Space Center (KSC) is responsible for all NASA human spaceflight launch operations, therefore it is vital that all displays within the firing room be properly tested, up-to-date, and user-friendly during a launch. The Ground Main Propulsion System (GMPS) requires a number of remote displays for Vehicle Integration and Launch (VIL) Operations at KSC. My project is to develop remote displays for the GMPS using the Display Services and Framework (DSF) editor. These remote displays will be based on model images provided by GMPS through PowerPoint. Using the DSF editor, the PowerPoint images can be recreated with active buttons associated with the correct Compact Unique Identifiers (CUIs). These displays will be documented in the Software Requirements and Design Specifications (SRDS) at the 90% GMPS Design Review. In the future, these remote displays will be available for other developers to improve, edit, or add on to so that the display may be incorporated into the firing room to be used for launches.

  16. Plasma Display at the Liberty Science Center

    Science.gov (United States)

    Bruder, Dan; Gilligan, Nick; Tarman, Lisa; Ferris, Pamella; Morgan, James; Delooper, John; Zwicker, Andrew

    2009-11-01

    The Liberty Science Center (LSC) is the largest (300,000 sq. ft.) education resource in the New Jersey -- New York City region. PPPL in collaboration with the LSC has had a display at the center since 2007 More than 1.5 million visitors have come to the museum since the plasma display has been introduced. The plasma display has had significant use during that time frame. During the summer of 2009 a redesigned plasma exhibit was created by a student teacher-team using the lessons learned from the existing exhibit. The display includes a DC glow discharge tube with a permanent external magnet allowing visitors to manipulate the plasma and see how plasma can be used for fusion research. The goal of the display is to allow an individual to see a plasma and understand the potential benefits of fusion energy.

  17. Holistic peripheral processing of a polygon display.

    Science.gov (United States)

    Hughes, T; MacRae, A W

    1994-12-01

    Polygon displays compress information that would otherwise be conveyed by separate indicators into a single display in which each reading is represented by the distance of a polygon vertex from its center. The effect on detection of fault states of varying the number of polygon vertices from 4 to 20 in a display presented peripherally around a dynamic, simulated flight display was studied. Presence of the dynamic task reduced both speed and accuracy of response to the polygon display but did not significantly affect the pattern of response to differing numbers of vertices. All measures of performance were better with larger numbers of vertices. If the vertices are processed serially, more vertices require more processing time. Therefore, the result argues for holistic processing and implies that such information integration is beneficial to human performance in fault detection.

  18. Three-dimensional hologram display system

    Science.gov (United States)

    Mintz, Frederick (Inventor); Chao, Tien-Hsin (Inventor); Bryant, Nevin (Inventor); Tsou, Peter (Inventor)

    2009-01-01

    The present invention relates to a three-dimensional (3D) hologram display system. The 3D hologram display system includes a projector device for projecting an image upon a display medium to form a 3D hologram. The 3D hologram is formed such that a viewer can view the holographic image from multiple angles up to 360 degrees. Multiple display media are described, namely a spinning diffusive screen, a circular diffuser screen, and an aerogel. The spinning diffusive screen utilizes spatial light modulators to control the image such that the 3D image is displayed on the rotating screen in a time-multiplexing manner. The circular diffuser screen includes multiple, simultaneously-operated projectors to project the image onto the circular diffuser screen from a plurality of locations, thereby forming the 3D image. The aerogel can use the projection device described as applicable to either the spinning diffusive screen or the circular diffuser screen.

  19. A new emissive projection display technology and a high contrast DLP projection display on black screen

    Science.gov (United States)

    Sun, Ted X.; Cheng, Botao

    2011-03-01

    In this paper, Sun Innovations demonstrates an innovative emissive projection display (EPD) system. It is comprised of a fully transparent fluorescent screen with a UV image projector. The screen can be applied to glass windows or windshield, without affecting visible light transmission. The UV projector can be based on either a DLP (digital light processor) or a laser scanner display engine. For a DLP based projector, a discharge lamp coupled to a set of UV filters can be applied to generate a full color video image on the transparent screen. UV or blue-ray laser diodes of different wavelengths can be combined with scanning mirrors to generate a vector display for full windshield display applications. This display combines the best of both worlds of conventional projection and emissive display technologies. Like a projection display, the screen has no pixel structure and can be manufactured roll to roll; the display is scalable. Like an emissive display (e.g. plasma or CRT), the quality of the image is superior, with very large viewing angles. It also offers some unique features. For example, in addition to a fully transparent display on windows or windshields, it can be applied to a black substrate to create the first front projection display on true "black" screen that has superior image contrast at low projection power. This fundamentally new display platform can enable multiple major commercial applications that can not be addressed by any of the existing display technologies.

  20. Effects of closed-loop stimulation vs. DDD pacing on haemodynamic variations and occurrence of syncope induced by head-up tilt test in older patients with refrac\\tory cardioinhibitory vasovagal syncope: the Tilt test-Induced REsponse in Closed-loop Stimulation multicentre, prospective, single blind, randomized study.

    Science.gov (United States)

    Palmisano, Pietro; Dell'Era, Gabriele; Russo, Vincenzo; Zaccaria, Maria; Mangia, Rolando; Bortnik, Miriam; De Vecchi, Federica; Giubertoni, Ailia; Patti, Fabiana; Magnani, Andrea; Nigro, Gerardo; Rago, Anna; Occhetta, Eraldo; Accogli, Michele

    2017-04-12

    Closed-loop stimulation (CLS) seemed promising in preventing the recurrence of vasovagal syncope (VVS) in patients with a cardioinhibitory response to head-up tilt test (HUTT) compared with conventional pacing. We hypothesized that the better results of this algorithm are due to its quick reaction in high-rate pacing delivered in the early phase of vasovagal reflex, which increase the cardiac output and the blood pressure preventing loss of consciousness. This prospective, randomized, single-blind, multicentre study was designed as an intra-patient comparison and enrolled 30 patients (age 62.2 ± 13.5 years, males 60.0%) with cardioinhibitory VVS, carrying a dual-chamber pacemaker incorporating CLS algorithm. Two HUTTs were performed one week apart: one during DDD-CLS 60-130/min pacing and the other during DDD 60/min pacing; patients were randomly and blindly assigned to two groups: in one the first HUTT was performed in DDD-CLS (n = 15), in the other in DDD (n = 15). Occurrence of syncope and haemodynamic variations induced by HUTT was recorded during the tests. Compared with DDD, DDD-CLS significantly reduced the occurrence of syncope induced by HUTT (30.0% vs. 76.7%; P DDD and DDD-CLS mode, DDD-CLS significantly delayed the onset of syncope during HUTT (from 20.8 ± 3.9 to 24.8 ± 0.9 min; P = 0.032). The maximum fall in systolic blood pressure recorded during HUTT was significantly lower in DDD-CLS compared with DDD (43.2 ± 30.3 vs. 65.1 ± 25.8 mmHg; P = 0.004). In patients with cardioinhibitory VVS, CLS reduces the occurrence of syncope induced by HUTT, compared with DDD pacing. When CLS is not able to abort the vasovagal reflex, it seems to delay the onset of syncope.

  1. Carex divisa Huds

    NARCIS (Netherlands)

    Reichgelt, Th.J.

    1961-01-01

    In verband met het hieraan voorafgaande artikel van de heer Van der Ploeg lijkt het mij niet ondienstigs aan te geven, hoe Carex divisa zich van de in ons land voorkomende verwante soorten onderscheidt. Verwarring is alleen mogelijk met een der soorten uit de sectie Arenariae, want buiten deze

  2. HUD Insured Hospitals

    Data.gov (United States)

    Department of Housing and Urban Development — The Office of Healthcare Programs (OHP), previously known as the Office of Insured Health Care Facilities, is located within the Office of Housing and administers...

  3. HUD Program Income Limits

    Data.gov (United States)

    Department of Housing and Urban Development — Income limits used to determine the income eligibility of applicants for assistance under three programs authorized by the National Housing Act. These programs are...

  4. [Odor sensing system and olfactory display].

    Science.gov (United States)

    Nakamoto, Takamichi

    2014-01-01

    In this review, an odor sensing system and an olfactory display are introduced into people in pharmacy. An odor sensing system consists of an array of sensors with partially overlapping specificities and pattern recognition technique. One of examples of odor sensing systems is a halitosis sensor which quantifies the mixture composition of three volatile sulfide compounds. A halitosis sensor was realized using a preconcentrator to raise sensitivity and an electrochemical sensor array to suppress the influence of humidity. Partial least squares (PLS) method was used to quantify the mixture composition. The experiment reveals that the sufficient accuracy was obtained. Moreover, the olfactory display, which present scents to human noses, is explained. A multi-component olfactory display enables the presentation of a variety of smells. The two types of multi-component olfactory display are described. The first one uses many solenoid valves with high speed switching. The valve ON frequency determines the concentration of the corresponding odor component. The latter one consists of miniaturized liquid pumps and a surface acoustic wave (SAW) atomizer. It enables the wearable olfactory display without smell persistence. Finally, the application of the olfactory display is demonstrated. Virtual ice cream shop with scents was made as a content of interactive art. People can enjoy harmony among vision, audition and olfaction. In conclusion, both odor sensing system and olfactory display can contribute to the field of human health care.

  5. Advance in phage display technology for bioanalysis.

    Science.gov (United States)

    Tan, Yuyu; Tian, Tian; Liu, Wenli; Zhu, Zhi; J Yang, Chaoyong

    2016-06-01

    Phage display technology has emerged as a powerful tool for target gene expression and target-specific ligand selection. It is widely used to screen peptides, proteins and antibodies with the advantages of simplicity, high efficiency and low cost. A variety of targets, including ions, small molecules, inorganic materials, natural and biological polymers, nanostructures, cells, bacteria, and even tissues, have been demonstrated to generate specific binding ligands by phage display. Phages and target-specific ligands screened by phage display have been widely used as affinity reagents in therapeutics, diagnostics and biosensors. In this review, comparisons of different types of phage display systems are first presented. Particularly, microfluidic-based phage display, which enables screening with high throughput, high efficiency and integration, is highlighted. More importantly, we emphasize the advances in biosensors based on phages or phage-derived probes, including nonlytic phages, lytic phages, peptides or proteins screened by phage display, phage assemblies and phage-nanomaterial complexes. However, more efficient and higher throughput phage display methods are still needed to meet an explosion in demand for bioanalysis. Furthermore, screening of cyclic peptides and functional peptides will be the hotspot in bioanalysis. Copyright © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  6. The display of portable infrared measuring temperature

    Science.gov (United States)

    Qian, Yitao; Gu, Guohua; Sui, Xiubao

    2014-11-01

    In recent years based on security, quality supervision, inspection and medical for the urgent need of infrared temperature measurement and infrared display technology, coupled with embedded system to achieve rapid development, which is widely used in the electronic products and the field of intelligent instruments and industrial control, this paper has designed a kind of more comprehensive, more efficient and more intuitive infrared thermometer. Unlike previous handheld infrared thermometer, we regard an embedded Linux system as the system, with its open source code, support most mainstream hardware platforms, unified peripheral interface and can be customized, to build an embedded infrared system that has provided strong system support; the pseudocolor techniques and Qt interface display technology make the image more colorful and the picture function more diverse; With ARM microprocessor as the display and temperature measuring platform, it costs reduction and reduce volume and power consumption; the FrameBuffer interface technology and multithreading technology realize the smooth real-time display. And ultimately the display size of real-time infrared image is 640 * 480 at a speed of 25 frames / sec. What is more, display is equipped with the menu option so that thermometer can be required to complete the operation through the button. The temperature display system aims at small volume, easy to use and flexible. I believe this thermometer will have a good application prospect.

  7. Transparent 3D display for augmented reality

    Science.gov (United States)

    Lee, Byoungho; Hong, Jisoo

    2012-11-01

    Two types of transparent three-dimensional display systems applicable for the augmented reality are demonstrated. One of them is a head-mounted-display-type implementation which utilizes the principle of the system adopting the concave floating lens to the virtual mode integral imaging. Such configuration has an advantage in that the threedimensional image can be displayed at sufficiently far distance resolving the accommodation conflict with the real world scene. Incorporating the convex half mirror, which shows a partial transparency, instead of the concave floating lens, makes it possible to implement the transparent three-dimensional display system. The other type is the projection-type implementation, which is more appropriate for the general use than the head-mounted-display-type implementation. Its imaging principle is based on the well-known reflection-type integral imaging. We realize the feature of transparent display by imposing the partial transparency to the array of concave mirror which is used for the screen of reflection-type integral imaging. Two types of configurations, relying on incoherent and coherent light sources, are both possible. For the incoherent configuration, we introduce the concave half mirror array, whereas the coherent one adopts the holographic optical element which replicates the functionality of the lenslet array. Though the projection-type implementation is beneficial than the head-mounted-display in principle, the present status of the technical advance of the spatial light modulator still does not provide the satisfactory visual quality of the displayed three-dimensional image. Hence we expect that the head-mounted-display-type and projection-type implementations will come up in the market in sequence.

  8. Using Vision System Technologies to Enable Operational Improvements for Low Visibility Approach and Landing Operations

    Science.gov (United States)

    Kramer, Lynda J.; Ellis, Kyle K. E.; Bailey, Randall E.; Williams, Steven P.; Severance, Kurt; Le Vie, Lisa R.; Comstock, James R.

    2014-01-01

    Flight deck-based vision systems, such as Synthetic and Enhanced Vision System (SEVS) technologies, have the potential to provide additional margins of safety for aircrew performance and enable the implementation of operational improvements for low visibility surface, arrival, and departure operations in the terminal environment with equivalent efficiency to visual operations. To achieve this potential, research is required for effective technology development and implementation based upon human factors design and regulatory guidance. This research supports the introduction and use of Synthetic Vision Systems and Enhanced Flight Vision Systems (SVS/EFVS) as advanced cockpit vision technologies in Next Generation Air Transportation System (NextGen) operations. Twelve air transport-rated crews participated in a motion-base simulation experiment to evaluate the use of SVS/EFVS in NextGen low visibility approach and landing operations. Three monochromatic, collimated head-up display (HUD) concepts (conventional HUD, SVS HUD, and EFVS HUD) and two color head-down primary flight display (PFD) concepts (conventional PFD, SVS PFD) were evaluated in a simulated NextGen Chicago O'Hare terminal environment. Additionally, the instrument approach type (no offset, 3 degree offset, 15 degree offset) was experimentally varied to test the efficacy of the HUD concepts for offset approach operations. The data showed that touchdown landing performance were excellent regardless of SEVS concept or type of offset instrument approach being flown. Subjective assessments of mental workload and situation awareness indicated that making offset approaches in low visibility conditions with an EFVS HUD or SVS HUD may be feasible.

  9. Real-Time, Interactive Sonic Boom Display

    Science.gov (United States)

    Haering, Jr., Edward A. (Inventor); Plotkin, Kenneth J. (Inventor)

    2012-01-01

    The present invention is an improved real-time, interactive sonic boom display for aircraft. By using physical properties obtained via various sensors and databases, the invention determines, in real-time, sonic boom impacts locations and intensities for aircraft traveling at supersonic speeds. The information is provided to a pilot via a display that lists a selectable set of maneuvers available to the pilot to mitigate sonic boom issues. Upon selection of a maneuver, the information as to the result of the maneuver is displayed and the pilot may proceed with making the maneuver, or provide new data to the system in order to calculate a different maneuver.

  10. Signal processing and display for electrochemical data

    Science.gov (United States)

    Young, R. N.; Wilkins, J. R.

    1977-01-01

    Two electrochemical electrodes provide signals; apparatus automatically determines reaction end point and displays lag period in time or cell concentration. Apparatus can be used with standard pH reference anode and platinum anode or with redox electrodes.

  11. High Resolution Autostereoscopic Cockpit Display Project

    Data.gov (United States)

    National Aeronautics and Space Administration — During this Phase II program Dimension Technologies Inc. (DTI) proposes to design and build an autostereoscopic (glasses-free 3D) LCD based aircraft cockpit display...

  12. Three D displays in military applications

    Science.gov (United States)

    Trakalo, M.

    2009-05-01

    The evolution to 3D content is considered to be the next quantum leap in the movie industry, and is currently taking place. The prospect of the home entertainment industry adopting 3D is causing display manufacturers to develop 3D compatible products. In the past, 3D displays have often been limited by poor image quality. The current generation of 3D displays can have image quality that approaches that of their 2D counterparts. 3D content has found its way to the cinema and is seeking a way into the home, but will it have a place in the military environment? This paper discusses the current status of 3D display technology and its suitability to the military ground mobile environment. It includes an introduction to 3D visualization and examines issues such as implementation, image quality, and human factors.

  13. Diagnosis of fault location using polygon displays.

    Science.gov (United States)

    Greaney, J; MacRae, A N

    1996-03-01

    When polygon displays are used to represent multiple sources of information, sometimes they can be processed in parallel so that the significant information can be taken in 'at a glance'. Previous studies found that reaction times (RTs) remained constant as the number of vertices was increased (Greaney and MacRae 1993). However, these studies did not call for the explicit identification of critical vertices and used polygons that were relatively regular. The present study required abnormal vertices to be identified, and it was found that RTs increased as a function of the total number of vertices. In addition, RTs were longer when the variability of the displayed information was greater, that is, when the polygon was more irregular. It was concluded that the polygon display may have more potential as a global warning indicator than as a means of displaying individual parameter values, which must be assessed separately.

  14. Compressive multi-mode superresolution display

    KAUST Repository

    Heide, Felix

    2014-01-01

    Compressive displays are an emerging technology exploring the co-design of new optical device configurations and compressive computation. Previously, research has shown how to improve the dynamic range of displays and facilitate high-quality light field or glasses-free 3D image synthesis. In this paper, we introduce a new multi-mode compressive display architecture that supports switching between 3D and high dynamic range (HDR) modes as well as a new super-resolution mode. The proposed hardware consists of readily-available components and is driven by a novel splitting algorithm that computes the pixel states from a target high-resolution image. In effect, the display pixels present a compressed representation of the target image that is perceived as a single, high resolution image. © 2014 Optical Society of America.

  15. Advanced Plasmonic Materials for Dynamic Color Display.

    Science.gov (United States)

    Shao, Lei; Zhuo, Xiaolu; Wang, Jianfang

    2017-11-10

    Plasmonic structures exhibit promising applications in high-resolution and durable color generation. Research on advanced hybrid plasmonic materials that allow dynamically reconfigurable color control has developed rapidly in recent years. Some of these results may give rise to practically applicable reflective displays in living colors with high performance and low power consumption. They will attract broad interest from display markets, compared with static plasmonic color printing, for example, in applications such as digital signage, full-color electronic paper, and electronic device screens. In this progress report, the most promising recent examples of utilizing advanced plasmonic materials for the realization of dynamic color display are highlighted and put into perspective. The performances, advantages, and disadvantages of different technologies are discussed, with emphasis placed on both the potential and possible limitations of various hybrid materials for dynamic plasmonic color display. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  16. Bioadsorption strategies with yeast molecular display technology.

    Science.gov (United States)

    Shibasaki, Seiji; Ueda, Mitsuyoshi

    2014-01-01

    Molecular display techniques using microbial cell surfaces have been widely developed in the past twenty years, and are useful tools as whole cell catalysts for various applications such as bioconversion, bioremediation, biosensing, and the screening system of protein libraries. Furthermore, different types of microbial cells among eukaryotic and prokaryotic strains have been investigated for their use in surface display technologies. Recently, several kinds of protein-displaying yeasts have been utilized as bioadsorbents in this platform technology. In particular, these trials have successfully expanded the possibility of applications to metal binding, affinity purification, and receptor-ligand interaction by using the yeast cell surface. In this mini review, we describe the general principles of molecular display technology using yeast cells and its applications, with a particular focus on bioadsorption.

  17. Space Station Displays and Controls Technology Evolution

    Science.gov (United States)

    Blackburn, Greg C.

    1990-01-01

    Viewgraphs on space station displays and controls technology evolution are presented. Topics covered include: a historical perspective; major development objectives; current development activities; key technology areas; and technology evolution issues.

  18. Screen Codes: Visual Hyperlinks for Displays

    OpenAIRE

    Collomosse, J.; Kindberg, T.

    2008-01-01

    We present 'Screen codes' - a space- and time-efficient, aesthetically compelling method for transferring data from a display to a camera-equipped mobile device. Screen codes encode data as a grid of luminosity fluctuations within an arbitrary image, displayed on the video screen and decoded on a mobile device. These 'twinkling' images are a form of 'visual hyperlink', by which users can move dynamically generated content to and from their mobile devices. They help bridge the 'content divide'...

  19. Modern Display Technologies for Airborne Applications.

    Science.gov (United States)

    1983-04-01

    cover can be controlled as function * of the background luminance level ( photochromic , electrochromic materials). But at very low light levels, where...UUAUITY DISPLAY (DLA Umask (Aperture pitch *GRAPHIC DISPLAY ROUNDOAPERTURE (Sn 0 03ia02(m MASK AND 00 Biack matrix (S11) pigmented IRS Electron beam gun... soluble in the liquid crystal host to give adequate absorption and contrast without risk of the segregation of dye particles at low temperatures

  20. Bidding for Representative Allocations for Display Advertising

    OpenAIRE

    Ghosh, Arpita; McAfee, Preston; Papineni, Kishore; Vassilvitskii, Sergei

    2009-01-01

    Display advertising has traditionally been sold via guaranteed contracts -- a guaranteed contract is a deal between a publisher and an advertiser to allocate a certain number of impressions over a certain period, for a pre-specified price per impression. However, as spot markets for display ads, such as the RightMedia Exchange, have grown in prominence, the selection of advertisements to show on a given page is increasingly being chosen based on price, using an auction. As the number of parti...

  1. Online Allocation Rules in Display Advertising

    OpenAIRE

    Shamsi, Davood; Holtan, Marius; Luenberger, Robert; Ye, Yinyu

    2014-01-01

    Efficient allocation of impressions to advertisers in display advertising has a significant impact on advertisers' utility and the browsing experience of users. The problem becomes particularly challenging in the presence of advertisers with limited budgets as this creates a complex interaction among advertisers in the optimal impression assignment. In this paper, we study online impression allocation in display advertising with budgeted advertisers. That is, upon arrival of each impression, ...

  2. Managing Risk of Bidding in Display Advertising

    OpenAIRE

    Zhang, HaiFeng; Zhang, Weinan; Rong, Yifei; Ren, Kan; Li, Wenxin; Wang, Jun

    2017-01-01

    In this paper, we deal with the uncertainty of bidding for display advertising. Similar to the financial market trading, real-time bidding (RTB) based display advertising employs an auction mechanism to automate the impression level media buying; and running a campaign is no different than an investment of acquiring new customers in return for obtaining additional converted sales. Thus, how to optimally bid on an ad impression to drive the profit and return-on-investment becomes essential. Ho...

  3. Oil defect detection of electrowetting display

    Science.gov (United States)

    Chiang, Hou-Chi; Tsai, Yu-Hsiang; Yan, Yung-Jhe; Huang, Ting-Wei; Mang, Ou-Yang

    2015-08-01

    In recent years, transparent display is an emerging topic in display technologies. Apply in many fields just like mobile device, shopping or advertising window, and etc. Electrowetting Display (EWD) is one kind of potential transparent display technology advantages of high transmittance, fast response time, high contrast and rich color with pigment based oil system. In mass production process of Electrowetting Display, oil defects should be found by Automated Optical Inspection (AOI) detection system. It is useful in determination of panel defects for quality control. According to the research of our group, we proposed a mechanism of AOI detection system detecting the different kinds of oil defects. This mechanism can detect different kinds of oil defect caused by oil overflow or material deteriorated after oil coating or driving. We had experiment our mechanism with a 6-inch Electrowetting Display panel from ITRI, using an Epson V750 scanner with 1200 dpi resolution. Two AOI algorithms were developed, which were high speed method and high precision method. In high precision method, oil jumping or non-recovered can be detected successfully. This mechanism of AOI detection system can be used to evaluate the oil uniformity in EWD panel process. In the future, our AOI detection system can be used in quality control of panel manufacturing for mass production.

  4. A new type of multiview display

    Science.gov (United States)

    Jurk, Silvio; Kuhlmey, Mathias; de la Barré, René

    2015-03-01

    The common architecture of multi-view autostereoscopic displays assigns a nominal viewing distance. The design affects the convergence of the visible rays at a nominal viewing distance where diamond shaped viewing zones are created. In contrast to this approach, the authors present a new design strategy departing from the geometric relations of common 3D display designs. They show that a beam emitted from a sub-pixel should be rendered with an individual camera direction determined by an algorithm. This algorithm also uses, besides the parameters of the display design, the desired viewing distance and the allowed increments of the camera angle. This enables very flexible designs of autostereoscopic displays. The main difference from the common multiview display is that its design approach enables a continued viewing zone without the usually diamond shaped sweet spots. The algorithm for controlling the rendering and the multiplexing is generic, as well as for integral and multiview design approaches using an image splitter raster. The paper introduces it for autostereoscopic displays with horizontal parallax.

  5. SES cupola interactive display design environment

    Science.gov (United States)

    Vu, Bang Q.; Kirkhoff, Kevin R.

    1989-01-01

    The Systems Engineering Simulator, located at the Lyndon B. Johnson Space Center in Houston, Texas, is tasked with providing a real-time simulator for developing displays and controls targeted for the Space Station Freedom. These displays and controls will exist inside an enclosed workstation located on the space station. The simulation is currently providing the engineering analysis environment for NASA and contractor personnel to design, prototype, and test alternatives for graphical presentation of data to an astronaut while he performs specified tasks. A highly desirable aspect of this environment is to have the capability to rapidly develop and bring on-line a number of different displays for use in determining the best utilization of graphics techniques in achieving maximum efficiency of the test subject fulfilling his task. The Systems Engineering Simulator now has available a tool which assists in the rapid development of displays for these graphic workstations. The Display Builder was developed in-house to provide an environment which allows easy construction and modification of displays within minutes of receiving requirements for specific tests.

  6. Display of information in the operating room.

    Science.gov (United States)

    Kiefer, Nicholas; Hoeft, Andreas

    2010-12-01

    The ongoing development of new sensors and parameters for intraoperative monitoring has outpaced the development of display design, leading to a gap between the load of information and the quality of its delivery. This is not a circumstantial problem, as a large portion of critical incidents is attributable to inadequate situation awareness and the failure to recognize readily monitored data. This review also addresses improvements of current threshold alarms. Research has focused on advanced integrated displays, drawing on the findings of human factor science and on the exploitation of alternative sensory pathways. Integrated displays, as well as auditory, vibrotactile and head-mounted displays have been shown to promote situation awareness and reduce cognitive workload. Intelligent alarm design can successfully reduce the number of false alarms. Improvement of the display of information in the operating room is warranted, and recent developments are promising. However, their introduction into mass market is not yet on the horizon, although the shortcomings of the traditional single-sensor-single-indicator principle are known for a long time. If manufacturers are reluctant to implement new techniques into their devices, they should at least facilitate access to monitoring raw data in order to allow independent development of displays.

  7. Methodologies for the evaluation of CRT displays

    Energy Technology Data Exchange (ETDEWEB)

    Blackman, H.S.

    1986-01-01

    This paper presents the results of a series of experiments that have been conducted by the Human Factors Research Branch for the purpose of developing objective methods that will be used to evaluate the effectiveness of cathode ray tube (CRT) generated displays in improving reactor operator performance. The results of this work can provide a basis for the United States Nuclear Regulatory Commission (USNRC) to objectively evaluate specific licensee-developed display designs. The following methods have been developed: (1) Psychophysics - short exposure of static display types were presented to subjects who were tasked to report status of a given parameter; (2) Multidimensional Rating Scale - paper and pencil instrument employed by subjects to rate the features of a display type across a variety of psychological dimensions; (3) Checklist Evaluation - a paper and pencil instrument employed by subjects to assess particular display types according to a set of human engineering criteria; (4) Noninteractive Evaluation - a formal experiment where the subjects were requested to identify dynamic simulated transients using various display types; and (5) Interactive Evaluation - similar to the noninteractive, but the subjects interacted with the simulator using a touch screen to mitigate transient events.

  8. HDTV and large-screen display

    Science.gov (United States)

    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.

  9. Evolution Of Map Display Optical Systems

    Science.gov (United States)

    Boot, Alan

    1983-06-01

    It is now over 20 years since Ferranti plc introduced optically projected map displays into operational aircraft navigation systems. Then, as now, it was the function of the display to present an image of a topographical map to a pilot or navigator with his present position clearly identified. Then, as now, the map image was projected from a reduced image stored on colour micro film. Then, as now, the fundamental design problems are the same.In the exposed environment of an aircraft cockpit where brightness levels may vary from those associated with direct sunlight on the one hand, to starlight on the other, how does one design an optical system with sufficient luminance, contrast and resolution where in the daytime sunlight may fall on the display or in the pilot's eyes, and at night time the display luminance must not detract from the pilot's ability to pick up external clues? This paper traces the development of Ferranti plc optically projected map displays from the early V Bomber and the ill-fated TSR2 displays to the Harrier and Concorde displays. It then goes on to the development of combined map and electronic displays (COMED), showing how an earlier design, as fitted to Tornado, has been developed into the current COMED design which is fitted to the F-18 and Jaguar aircraft. In each of the above display systems particular features of optical design interest are identified and their impact on the design as a whole are discussed. The use of prisms both for optical rotation and translation, techniques for the maximisation of luminance, the problems associated with contrast enhancement, particularly with polarising filters in the presence of optically active materials, the use of aerial image combining systems and the impact of the pilot interface on the system parameter are all included.Perhaps the most interesting result in considering the evolution of map displays has not been so much the designer's solutions in overcoming the various design problems but

  10. Characterizing the reflectivity of handheld display devices.

    Science.gov (United States)

    Liu, Peter; Badano, Aldo

    2014-08-01

    With increased use of handheld and tablet display devices for viewing medical images, methods for consistently measuring reflectivity of the devices are needed. In this note, the authors report on the characterization of diffuse reflections for handheld display devices including mobile phones and tablets using methods recommended by the American Association of Physicists in Medicine Task Group 18 (TG18). The authors modified the diffuse reflectance coefficient measurement method outlined in the TG18 report. The authors measured seven handheld display devices (two phones and five tablets) and three workstation displays. The device was attached to a black panel with Velcro. To study the effect of the back surface on the diffuse reflectance coefficient, the authors created Styrofoam masks with different size square openings and placed it in front of the device. Overall, for each display device, measurements of illuminance and reflected luminance on the display screen were taken. The authors measured with no mask, with masks of varying size, and with display-size masks, and calculated the corresponding diffuse reflectance coefficient. For all handhelds, the diffuse reflectance coefficient measured with no back panel were lower than measurements performed with a mask. The authors found an overall increase in reflectivity as the size of the mask decreases. For workstations displays, diffuse reflectance coefficients were higher when no back panel was used, and higher than with masks. In all cases, as luminance increased, illuminance increased, but not at the same rate. Since the size of handheld displays is smaller than that of workstation devices, the TG18 method suffers from a dependency on illumination condition. The authors show that the diffuse reflection coefficients can vary depending on the nature of the back surface of the illuminating box. The variability in the diffuse coefficient can be as large as 20% depending on the size of the mask. For all measurements

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

    Science.gov (United States)

    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.

  12. Tactile display with dielectric multilayer elastomer actuatorsq

    Science.gov (United States)

    Matysek, Marc; Lotz, Peter; Schlaak, Helmut F.

    2009-03-01

    Tactile perception is the human sensation of surface textures through the vibrations generated by stroking a finger over the surface. The skin responds to several distributed physical quantities. Perhaps the most important are high-frequency vibrations, pressure distributions (static shape) and thermal properties. The integration of tactile displays in man-machine interfaces promises a more intuitive handling. For this reason many tactile displays are developed using different technologies. We present several state-of-the-art tactile displays based on different types of dielectric elastomer actuators to clarify the advantages of our matrix display based on multilayer technology. Using this technology perpendicular and hexagonal arrays of actuator elements (tactile stimulators) can be integrated into a PDMS substrate. Element diameters down to 1 mm allow stimuli at the range of the human two-point-discrimination threshold. Driving the elements by column and row addressing enables various stimulation patterns with a reduced number of feeding lines. The transient analysis determines charging times of the capacitive actuators depending on actuator geometry and material parameters. This is very important to ensure an adequate dynamic characteristic of the actuators to stimulate the human skin by vibrations. The suitability of multilayer dielectric elastomer actuators for actuation in tactile displays has been determined. Beside the realization of a static tactile display - where multilayer DEA are integrated as drives for movable contact pins - we focus on the direct use of DEA as a vibrotactile display. Finally, we present the scenario and achieved results of a recognition threshold test. Even relative low voltages in the range of 800 V generate vibrations with 100% recognition ratio within the group of participants. Furthermore, the frequency dependent characteristic of the determined recognition threshold confirms with established literature.

  13. MEMS tactile display: from fabrication to characterization

    Science.gov (United States)

    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.

  14. Imaging display method for airborne oceanographic LIDAR

    Science.gov (United States)

    Davis, Jon P.; Keck, Timothy; Umehara, Michael J.

    1990-09-01

    Typical airborne Light Detection and Ranging (LIDAR) used for oceanographic measurements collect data at rates in the range of 1 Megabyte per second. This paper presents a method for organizing and displaying this great bulk of data to allow screening for areas of interest. In addition, this method can be transferred to dedicated hardware, to provide a 100% real time data display system at a reasonable cost. A typical airborne LIDAR system contains a scanning transceiver, and digitizes returned waveforms as the aircraft ffies some search pattern. Thus the data is inherently four dimensional (intensity and three spatial dimensions). This method reliesupon collapsing the four dimensional data into three dimensions; color and X,Y screen coordinates. This is doneby translating depth into an RGB color mix, and return intensity into RGB intensity. Thus color represents depth, and brightness represents signal strength. This data is then displayed on a high resolution color display. In order for this to be successful, some preprocessing is necessary to normalize the waveforms, so that changes in the displayreflect changes in the water column. In addition, some digital filtering is beneficial to increase the signal to noise ratio. This system is currentlyimplemented in Greenhills 'C' under CLIX (UnixVport toClipper) running on a Zaiaz 933 compute engine, with RASIL graphics software package on a Zaiaz FB 640 Graphics frame buffer. This hardware provides 5 MIPS average execution rate and 16.7 million colors on a 768 x 576 pixel display.

  15. Processing and characterization of high resolution GaN/InGaN LED arrays at 10 micron pitch for micro display applications

    Science.gov (United States)

    Dupré, Ludovic; Marra, Marjorie; Verney, Valentin; Aventurier, Bernard; Henry, Franck; Olivier, François; Tirano, Sauveur; Daami, Anis; Templier, François

    2017-02-01

    We report the fabrication process and characterization of high resolution 873 x 500 pixels emissive arrays based on blue or green GaN/InGaN light emitting diodes (LEDs) at a reduced pixel pitch of 10 μm. A self-aligned process along with a combination of damascene metallization steps is presented as the key to create a common cathode which is expected to provide good thermal dissipation and prevent voltage drops between center and side of the micro LED matrix. We will discuss the challenges of a self-aligned technology related to the choice of a good P contact metal and will present our solutions for the realization of the metallic interconnections between the GaN contacts and the higher levels of metallization at such a small pixel pitch. Enhanced control of each technological step allows scalability of the process up to 4 inch LED wafers and production of high quality LED arrays. The very high brightness (up to 107 cd.m-2) and good external quantum efficiency (EQE) of the resulting device make these kind of micro displays suitable for augmented reality or head up display applications.

  16. Display interface concepts for automated fault diagnosis

    Science.gov (United States)

    Palmer, Michael T.

    1989-01-01

    An effort which investigated concepts for displaying dynamic system status and fault history (propagation) information to the flight crew is described. This investigation was performed by developing several candidate display formats and then conducting comprehension tests to determine those characteristics that made one format preferable to another for presenting this type of information. Twelve subjects participated. Flash tests, or limited time exposure tests, were used to determine the subjects' comprehension of the information presented in the display formats. It was concluded from the results of the comprehension tests that pictographs were more comprehensible than both block diagrams and text for presenting dynamic system status and fault history information, and that pictographs were preferred over both block diagrams and text. It was also concluded that the addition of this type of information in the cockpit would help the crew remain aware of the status of their aircraft.

  17. Interacting on and around Large Displays

    DEFF Research Database (Denmark)

    Markussen, Anders

    Over the past two decades, interactions on and around large high-resolution displays have gained increasing levels of attention in research and in practice. This thesis explores and compares interaction techniques for large displays that operate up-close and at a distance. More specifically......, the focus of this thesis is on three aspects of large display interactions: (1) Improved Mid-Air Text Entry; (2) Improved Understanding of Input Modalities; and (3) Extended Boundaries of Interaction. To improve support for mid-air text entry, Paper 1 conducted a design space analysis, and three mid...... for text entry. However, future work could potentially increase text entry rates of the mid-air keyboard by studying and identifying the specific properties that resulted in the performance benefits of the touch-based keyboard. Paper 3 also proposed the Back Of the Hand (BOH) as a novel interaction...

  18. Display design strategy for condition monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Paulsen, Jette Lundtang

    2002-08-15

    This report describes the development of a strategy for interface design for process plants. The strategy is based on methods from risk analysis to elicit the problems in the plant. In the present work the strategy has been used on a condenser and a high pressure preheater. The test of the strategy in this work focuses on the condition of systems, but could as well focus on functions of the plant. The report further describes from which sources knowledge about the plant can be extracted. A display for supervision of the condenser condition has been tested on a nuclear power plant, a gas fired power plant and the HAMBO simulator(HAMlab BOiling water reactor). A pre-heater display is still under development, but has been tested on a PC display, replaying data collected at the HAMBO simulator. (Author)

  19. Druid, event display for the linear collider

    CERN Document Server

    Ruan, M; Musat, G; Jeans, D; Pande, J

    2013-01-01

    Druid is a dedicated event display designed for the future e +e − linear colliders. Druid takes standard linear collider data files and detector geometry description files as input, it can visualize both physics event and detector geometry. Many displaying options are provided by Druid, giving easy access to different information. As a versatile event display, Druid supports all the latest linear collider detector models, Silicon Detector and International Large Detector, as well as the calorimeter prototypes operated in the CALICE test beam experiments. It has been utilized in many studies such as the verification of detector geometry, analysis of the simulated full events and test beam data as well as reconstruction algorithm development and code debugging.

  20. Characterising laser beams with liquid crystal displays

    Science.gov (United States)

    Dudley, Angela; Naidoo, Darryl; Forbes, Andrew

    2016-02-01

    We show how one can determine the various properties of light, from the modal content of laser beams to decoding the information stored in optical fields carrying orbital angular momentum, by performing a modal decomposition. Although the modal decomposition of light has been known for a long time, applied mostly to pattern recognition, we illustrate how this technique can be implemented with the use of liquid-crystal displays. We show experimentally how liquid crystal displays can be used to infer the intensity, phase, wavefront, Poynting vector, and orbital angular momentum density of unknown optical fields. This measurement technique makes use of a single spatial light modulator (liquid crystal display), a Fourier transforming lens and detector (CCD or photo-diode). Such a diagnostic tool is extremely relevant to the real-time analysis of solid-state and fibre laser systems as well as mode division multiplexing as an emerging technology in optical communication.

  1. Speckle suppression in scanning laser display.

    Science.gov (United States)

    Yurlov, Victor; Lapchuk, Anatoly; Yun, Sangkyeong; Song, Jonghyeong; Yang, Haengseok

    2008-01-10

    The theory of speckle noise in a scanning beam is presented. The general formulas for the calculation of speckle contrast, which apply to any scanning display, are obtained. It is shown that the main requirement for successful speckle suppression in a scanning display is a narrow autocorrelation peak and low sidelobe level in the autocorrelation function of the complex amplitude distribution across a scanning light beam. The simple formulas for speckle contrast for a beam with a narrow autocorrelation function peak were obtained. It was shown that application of a diffractive optical element (DOE) with a Barker code phase shape could use only natural display scanning motion for speckle suppression. DOE with a Barker code phase shape has a small size and may be deposited on the light modulator inside the depth of the focus of the reflected beam area, and therefore, it does not need an additional image plane and complicated relay optics.

  2. High performance visual display for HENP detectors

    CERN Document Server

    McGuigan, M; Spiletic, J; Fine, V; Nevski, P

    2001-01-01

    A high end visual display for High Energy Nuclear Physics (HENP) detectors is necessary because of the sheer size and complexity of the detector. For BNL this display will be of special interest because of STAR and ATLAS. To load, rotate, query, and debug simulation code with a modern detector simply takes too long even on a powerful work station. To visualize the HENP detectors with maximal performance we have developed software with the following characteristics. We develop a visual display of HENP detectors on BNL multiprocessor visualization server at multiple level of detail. We work with general and generic detector framework consistent with ROOT, GAUDI etc, to avoid conflicting with the many graphic development groups associated with specific detectors like STAR and ATLAS. We develop advanced OpenGL features such as transparency and polarized stereoscopy. We enable collaborative viewing of detector and events by directly running the analysis in BNL stereoscopic theatre. We construct enhanced interactiv...

  3. WISP information display system user's manual

    Science.gov (United States)

    Alley, P. L.; Smith, G. R.

    1978-01-01

    The wind shears program (WISP) supports the collection of data on magnetic tape for permanent storage or analysis. The document structure provides: (1) the hardware and software configuration required to execute the WISP system and start up procedure from a power down condition; (2) data collection task, calculations performed on the incoming data, and a description of the magnetic tape format; (3) the data display task and examples of displays obtained from execution of the real time simulation program; and (4) the raw data dump task and examples of operator actions required to obtained the desired format. The procedures outlines herein will allow continuous data collection at the expense of real time visual displays.

  4. Software Verification of Orion Cockpit Displays

    Science.gov (United States)

    Biswas, M. A. Rafe; Garcia, Samuel; Prado, Matthew; Hossain, Sadad; Souris, Matthew; Morin, Lee

    2017-01-01

    NASA's latest spacecraft Orion is in the development process of taking humans deeper into space. Orion is equipped with three main displays to monitor and control the spacecraft. To ensure the software behind the glass displays operates without faults, rigorous testing is needed. To conduct such testing, the Rapid Prototyping Lab at NASA's Johnson Space Center along with the University of Texas at Tyler employed a software verification tool, EggPlant Functional by TestPlant. It is an image based test automation tool that allows users to create scripts to verify the functionality within a program. A set of edge key framework and Common EggPlant Functions were developed to enable creation of scripts in an efficient fashion. This framework standardized the way to code and to simulate user inputs in the verification process. Moreover, the Common EggPlant Functions can be used repeatedly in verification of different displays.

  5. Keratinocyte specific markers isolated using phage display

    DEFF Research Database (Denmark)

    Jensen, K.B.; Jensen, Ole Nørregaard; Ravn, P.

    2003-01-01

    Specific molecular markers for various normal and pathogenic cell states and cell types provide knowledge of basic biological systems and have a direct application in targeted therapy. We describe a proteomic method based on the combination of new and improved phage display antibody technologies...... display method was applied to analysis of human skin keratinocytes resulting in the isolation of a panel of antibodies. Fourteen of these antibodies were further characterized, half of which predominantly recognized keratinocytes in a screen of a range of different cell types. Three cognate keratinocyte...... antigens were subsequently identified by mass spectrometry as laminin-5, plectin, and fibronectin. The combination of phage display technology with mass spectrometry methods for protein identification is a general and promising approach for proteomic analysis of cell surface complexity....

  6. Pilot Preferences on Displayed Aircraft Control Variables

    Science.gov (United States)

    Trujillo, Anna C.; Gregory, Irene M.

    2013-01-01

    The experiments described here explored how pilots want available maneuver authority information transmitted and how this information affects pilots before and after an aircraft failure. The aircraft dynamic variables relative to flight performance were narrowed to energy management variables. A survey was conducted to determine what these variables should be. Survey results indicated that bank angle, vertical velocity, and airspeed were the preferred variables. Based on this, two displays were designed to inform the pilot of available maneuver envelope expressed as bank angle, vertical velocity, and airspeed. These displays were used in an experiment involving control surface failures. Results indicate the displayed limitations in bank angle, vertical velocity, and airspeed were helpful to the pilots during aircraft surface failures. However, the additional information did lead to a slight increase in workload, a small decrease in perceived aircraft flying qualities, and no effect on aircraft situation awareness.

  7. Predicted Weather Display and Decision Support Interface for Flight Deck

    Science.gov (United States)

    Johnson, Walter W. (Inventor); Wong, Dominic G. (Inventor); Wu, Shu-Chieh (Inventor); Koteskey, Robert W. (Inventor)

    2017-01-01

    A system and method for providing visual depictions of a predictive weather forecast for in-route vehicle trajectory planning. The method includes displaying weather information on a graphical display, displaying vehicle position information on the graphical display, selecting a predictive interval, displaying predictive weather information for the predictive interval on the graphical display, and displaying predictive vehicle position information for the predictive interval on the graphical display, such that the predictive vehicle position information is displayed relative to the predictive weather information, for in-route trajectory planning.

  8. Interpretation and display of research results

    Directory of Open Access Journals (Sweden)

    Dilip Kumar Kulkarni

    2016-01-01

    Full Text Available It important to properly collect, code, clean and edit the data before interpreting and displaying the research results. Computers play a major role in different phases of research starting from conceptual, design and planning, data collection, data analysis and research publication phases. The main objective of data display is to summarize the characteristics of a data and to make the data more comprehensible and meaningful. Usually data is presented depending upon the type of data in different tables and graphs. This will enable not only to understand the data behaviour, but also useful in choosing the different statistical tests to be applied.

  9. A Laboratory-Based Course in Display Technology

    Science.gov (United States)

    Sarik, J.; Akinwande, A. I.; Kymissis, I.

    2011-01-01

    A laboratory-based class in flat-panel display technology is presented. The course introduces fundamental concepts of display systems and reinforces these concepts through the fabrication of three display devices--an inorganic electroluminescent seven-segment display, a dot-matrix organic light-emitting diode (OLED) display, and a dot-matrix…

  10. 21 CFR 701.10 - Principal display panel.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 7 2010-04-01 2010-04-01 false Principal display panel. 701.10 Section 701.10...) COSMETICS COSMETIC LABELING Package Form § 701.10 Principal display panel. The term principal display panel... is most likely to be displayed, presented, shown, or examined under customary conditions of display...

  11. Positive display polarity is particularly advantageous for small character sizes: implications for display design.

    Science.gov (United States)

    Piepenbrock, Cosima; Mayr, Susanne; Buchner, Axel

    2014-08-01

    To test the display luminance hypothesis of the positive polarity advantage and gain insights for display design, the joint effects of display polarity and character size were assessed with a proofreading task Studies have shown that dark characters on light background (positive polarity) lead to better legibility than do light characters on dark background (negative polarity), presumably due to the typically higher display luminance of positive polarity presentations. Participants performed a proofreading task with black text on white background or white text on black background. Texts were presented in four character sizes (8, 10, 12, and 14 pt; corresponding to 0.22 degrees, 0.25 degrees, 0.31 degrees, and 0.34 degrees of vertical visual angle). A positive polarity advantage was observed in proofreading performance. Importantly, the positive polarity advantage linearly increased with decreasing character size. The findings are in line with the assumption that the typically higher luminance of positive polarity displays leads to an improved perception of detail. Application: The implications seem important for the design of text on such displays as those of computers, automotive control and entertainment systems, and smartphones that are increasingly used for the consumption of text-based media and communication. The sizes of these displays are limited, and it is tempting to use small font sizes to convey as much information as possible. Especially with small font sizes, negative polarity displays should be avoided.

  12. Submissive display in young helmeted guineafowl

    African Journals Online (AJOL)

    1984-06-04

    Jun 4, 1984 ... guardian lightly on the breast and to crawl under the guar- dian (Figure Ib). The reaction of the guardian is often ag- gressive e.g. pecking, trampling and dart chases; but these do not deter the chick. Submissive display may also be given after the guardian or a senior member has threatened the.

  13. Recognition of epoxy with phage displayed peptides.

    Science.gov (United States)

    Swaminathan, Swathi; Cui, Yue

    2013-07-01

    The development of a general approach for non-destructive chemical and biological functionalization of epoxy could expand opportunities for both fundamental studies and creating various device platforms. Epoxy shows unique electrical, mechanical, chemical and biological compatibility and has been widely used for fabricating a variety of devices. Phage display has emerged as a powerful method for selecting peptides that possess enhanced selectivity and binding affinity toward a variety of targets. In this letter, we demonstrate for the first time a powerful yet benign approach for identifying binding motifs to epoxy via comprehensively screened phage displayed peptides. Our results show that the epoxy can be selectively recognized with peptide-displaying phages. Further, along with the development of epoxy-based microstructures; recognition of the epoxy with phage displayed peptides can be specifically localized in these microstructures. We anticipate that these results could open up exciting opportunities in the use of peptide-recognized epoxy in fundamental biochemical recognition studies, as well as in applications ranging from analytical devices, hybrid materials, surface and interface, to cell biology. Copyright © 2013 Elsevier B.V. All rights reserved.

  14. Supramolecular liquid crystal displays : construction and applications

    NARCIS (Netherlands)

    Hoogboom, Joannes Theodorus Valentinus

    2004-01-01

    This thesis describes chemical methodologies, which can be ued to construct alignment layers for liquid crystal display purposes in a non-clean room environment, by making use of supramolecular chemistry. These techniques are subsequently used to attain control over LCD-properties, both pre- and

  15. Image display device in digital TV

    Science.gov (United States)

    Choi, Seung Jong

    2006-07-18

    Disclosed is an image display device in a digital TV that is capable of carrying out the conversion into various kinds of resolution by using single bit map data in the digital TV. The image display device includes: a data processing part for executing bit map conversion, compression, restoration and format-conversion for text data; a memory for storing the bit map data obtained according to the bit map conversion and compression in the data processing part and image data inputted from an arbitrary receiving part, the receiving part receiving one of digital image data and analog image data; an image outputting part for reading the image data from the memory; and a display processing part for mixing the image data read from the image outputting part and the bit map data converted in format from the a data processing part. Therefore, the image display device according to the present invention can convert text data in such a manner as to correspond with various resolution, carry out the compression for bit map data, thereby reducing the memory space, and support text data of an HTML format, thereby providing the image with the text data of various shapes.

  16. A Conceptual Framework for Ambient Learning Displays

    NARCIS (Netherlands)

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2010-01-01

    Börner, D., Kalz, M., & Specht, M. (2010). A Conceptual Framework for Ambient Learning Displays. In B. Chang, T. Hirashima, & H. Ogata (Eds.), Joint Proceedings of the Work-in-Progress Poster and Invited Young Researcher Symposium for the 18th International Conference on Computers in Education (pp.

  17. Appliance Displays: Accessibility Challenges and Proposed Solutions.

    Science.gov (United States)

    Fusco, Giovanni; Tekin, Ender; Giudice, Nicholas A; Coughlan, James M

    2015-10-01

    People who are blind or visually impaired face difficulties using a growing array of everyday appliances because they are equipped with inaccessible electronic displays. We report developments on our "Display Reader" smartphone app, which uses computer vision to help a user acquire a usable image of a display and have the contents read aloud, to address this problem. Drawing on feedback from past and new studies with visually impaired volunteer participants, as well as from blind accessibility experts, we have improved and simplified our user interface and have also added the ability to read seven-segment digit displays. Our system works fully automatically and in real time, and we compare it with general-purpose assistive apps such as Be My Eyes, which recruit remote sighted assistants (RSAs) to answer questions about video captured by the user. Our discussions and preliminary experiment highlight the advantages and disadvantages of fully automatic approaches compared with RSAs, and suggest possible hybrid approaches to investigate in the future.

  18. Effects Of Frame Rates In Video Displays

    Science.gov (United States)

    Kellogg, Gary V.; Wagner, Charles A.

    1991-01-01

    Report describes experiment on subjective effects of rates at which display on cathode-ray tube in flight simulator updated and refreshed. Conducted to learn more about jumping, blurring, flickering, and multiple lines that observer perceives when line moves at high speed across screen of a calligraphic CRT.

  19. A Conceptual Framework for Ambient Learning Displays

    NARCIS (Netherlands)

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2011-01-01

    Börner, D., Kalz, M., & Specht, M. (2010, 29 November-3 December). A Conceptual Framework for Ambient Learning Displays. Poster presented at the Work-in-Progress Poster and Invited Young Researcher Symposium of the 18th International Conference on Computers in Education, Putrajaya, Malaysia:

  20. Computer based human-centered display system

    Science.gov (United States)

    Still, David L. (Inventor); Temme, Leonard A. (Inventor)

    2002-01-01

    A human centered informational display is disclosed that can be used with vehicles (e.g. aircraft) and in other operational environments where rapid human centered comprehension of an operational environment is required. The informational display integrates all cockpit information into a single display in such a way that the pilot can clearly understand with a glance, his or her spatial orientation, flight performance, engine status and power management issues, radio aids, and the location of other air traffic, runways, weather, and terrain features. With OZ the information is presented as an integrated whole, the pilot instantaneously recognizes flight path deviations, and is instinctively drawn to the corrective maneuvers. Our laboratory studies indicate that OZ transfers to the pilot all of the integrated display information in less than 200 milliseconds. The reacquisition of scan can be accomplished just as quickly. Thus, the time constants for forming a mental model are near instantaneous. The pilot's ability to keep up with rapidly changing and threatening environments is tremendously enhanced. OZ is most easily compatible with aircraft that has flight path information coded electronically. With the correct sensors (which are currently available) OZ can be installed in essentially all current aircraft.

  1. Market trends in the projection display industry

    Science.gov (United States)

    Dash, Sweta

    2000-04-01

    The projection display industry represents a multibillion- dollar market that includes four distinct technologies. High-volume consumer products and high-value business products drive the market, with different technologies being used in different application markets. The consumer market is dominated by rear CRT technology, especially in the projection television segment. But rear LCD (liquid crystal display) and rear reflective (DLP, or Digital Light ProcessingTM) televisions are slowly emerging as future competitors to rear CRT projectors. Front CRT projectors are still popular in the high-end home theater market. Front LCD technology and front DLP technology dominate the business market. Traditional light valve technology was the only solution for applications requiring high light outputs, but new three-chip DLP projectors meet the higher light output requirements at a lower price. In the last few years the strongest growth has been in the business market for multimedia presentation applications. This growth was due to the continued increase in display pixel formats, the continued reduction in projector weight, and the improved price/performance ratio. The projection display market will grow at a significant rate during the next five years, driven by the growth in ultraportable (market to digital and HDTV products.

  2. Display-And-Alarm Circuit For Accelerometer

    Science.gov (United States)

    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.

  3. Count on It: Congruent Manipulative Displays

    Science.gov (United States)

    Morin, Joe; Samelson, Vicki M.

    2015-01-01

    Representations that create informative visual displays are powerful tools for communicating mathematical concepts. The National Council of Teachers of Mathematics encourages the use of manipulatives (NCTM 2000). Manipulative materials are often used to present initial representations of basic numerical principles to young children, and it is…

  4. 2K radiological image display station

    Science.gov (United States)

    Lou, Shyhliang A.; Huang, H. K.; Taira, Ricky K.; Breant, Claudine M.

    1993-09-01

    We intend to design a 2K display station which can be used in most of the radiology sections. This paper describes how we collected the basic viewing requirements and defined the criteria for designing the 2K display station. Based on the design criteria, hardware components are selected and software modules are implemented. The hardware components in the display station consist of a SUN 470 computer, two 21' diagonal 2K MegaScan monitors, and a 2.6- Gbyte formatted storage concepts parallel transfer disk. The software modules include a communication software module, a local database module, a local storage management module, and an image display module. The station provides features such as dual-cine, region- of-interest, caliper measurement, image retrieval, and diagnostic report. Four stations have been used in genitourinary radiology, pediatric radiology in-patient and out-patient, and neuroradiology since January 1992. The stations are used for morning and afternoon radiology rounds and frequently for consultations between radiologists and clinicians.

  5. Presenting directions with a vibrotactile torso display

    NARCIS (Netherlands)

    Erp, J.B.F. van

    2005-01-01

    Vibrotactile displays covering the torso present spatial information in an intuitive way since the stimuli are directly mapped to the body coordinates; left is left, front is front, etc. The present study investigated the direction in the horizontal plane to which a specific torso location is mapped

  6. 27 CFR 6.83 - Product displays.

    Science.gov (United States)

    2010-04-01

    ... industry member of giving or selling product displays to a retailer does not constitute a means to induce... (c) of this section are met. (b) Definition. “Product display” means any wine racks, bins, barrels... industry member under paragraph (a) of this section may not exceed $300 per brand at any one time in any...

  7. Advanced manufacturing technologies on color plasma displays

    Science.gov (United States)

    Betsui, Keiichi

    2000-06-01

    The mass production of the color plasma display started from 1996. However, since the price of the panel is still expensive, PDPs are not in widespread use at home. It is necessary to develop the new and low-cost manufacturing technologies to reduce the price of the panel. This paper describes some of the features of new fabrication technologies of PDPs.

  8. Advanced Three-Dimensional Display System

    Science.gov (United States)

    Geng, Jason

    2005-01-01

    A desktop-scale, computer-controlled display system, initially developed for NASA and now known as the VolumeViewer(TradeMark), generates three-dimensional (3D) images of 3D objects in a display volume. This system differs fundamentally from stereoscopic and holographic display systems: The images generated by this system are truly 3D in that they can be viewed from almost any angle, without the aid of special eyeglasses. It is possible to walk around the system while gazing at its display volume to see a displayed object from a changing perspective, and multiple observers standing at different positions around the display can view the object simultaneously from their individual perspectives, as though the displayed object were a real 3D object. At the time of writing this article, only partial information on the design and principle of operation of the system was available. It is known that the system includes a high-speed, silicon-backplane, ferroelectric-liquid-crystal spatial light modulator (SLM), multiple high-power lasers for projecting images in multiple colors, a rotating helix that serves as a moving screen for displaying voxels [volume cells or volume elements, in analogy to pixels (picture cells or picture elements) in two-dimensional (2D) images], and a host computer. The rotating helix and its motor drive are the only moving parts. Under control by the host computer, a stream of 2D image patterns is generated on the SLM and projected through optics onto the surface of the rotating helix. The system utilizes a parallel pixel/voxel-addressing scheme: All the pixels of the 2D pattern on the SLM are addressed simultaneously by laser beams. This parallel addressing scheme overcomes the difficulty of achieving both high resolution and a high frame rate in a raster scanning or serial addressing scheme. It has been reported that the structure of the system is simple and easy to build, that the optical design and alignment are not difficult, and that the

  9. Pilot stereotypes for navigation symbols on electronic displays

    Science.gov (United States)

    2006-09-20

    There is currently no common symbology standard for the : electronic display of navigation information. The wide : range of display technologies and the different functions : these displays support make it difficult to design symbols : that are easil...

  10. Spatial constraints of stereopsis in video displays

    Science.gov (United States)

    Schor, Clifton

    1989-01-01

    Recent development in video technology, such as the liquid crystal displays and shutters, have made it feasible to incorporate stereoscopic depth into the 3-D representations on 2-D displays. However, depth has already been vividly portrayed in video displays without stereopsis using the classical artists' depth cues described by Helmholtz (1866) and the dynamic depth cues described in detail by Ittleson (1952). Successful static depth cues include overlap, size, linear perspective, texture gradients, and shading. Effective dynamic cues include looming (Regan and Beverly, 1979) and motion parallax (Rogers and Graham, 1982). Stereoscopic depth is superior to the monocular distance cues under certain circumstances. It is most useful at portraying depth intervals as small as 5 to 10 arc secs. For this reason it is extremely useful in user-video interactions such as telepresence. Objects can be manipulated in 3-D space, for example, while a person who controls the operations views a virtual image of the manipulated object on a remote 2-D video display. Stereopsis also provides structure and form information in camouflaged surfaces such as tree foliage. Motion parallax also reveals form; however, without other monocular cues such as overlap, motion parallax can yield an ambiguous perception. For example, a turning sphere, portrayed as solid by parallax can appear to rotate either leftward or rightward. However, only one direction of rotation is perceived when stereo-depth is included. If the scene is static, then stereopsis is the principal cue for revealing the camouflaged surface structure. Finally, dynamic stereopsis provides information about the direction of motion in depth (Regan and Beverly, 1979). Clearly there are many spatial constraints, including spatial frequency content, retinal eccentricity, exposure duration, target spacing, and disparity gradient, which - when properly adjusted - can greatly enhance stereodepth in video displays.

  11. SALINITY, HYDROSTATIC PRESSURE, TEMPERATURE, SIGMA-THETA and POTENTIAL TEMPERATURE profile data collected in the North Atlantic Ocean on the CYGNUS, HUDSON and PARIZEAU cruises CY98-079, HUD9877 and others as part of the GB project from 1993-10-12 to 1999-09-29 (NODC Accession 0104393)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0104393 includes profile and physical data collected aboard the CYGNUS, HUDSON and PARIZEAU during cruises CY98-079, HUD9877, PAR93-032, PAR94-018,...

  12. Liquid-crystal-display-based touchable light field three-dimensional display using display-capture mapping calibration.

    Science.gov (United States)

    Peng, Yifan; Li, Haifeng; Zhong, Qing; Liu, Xu

    2012-09-01

    An approach to achieving a light field three-dimensional (3D) display with a large viewing angular range based on spliced multi-LCDs is investigated. The light field reconstruction principle, LCD-based hardware configuration, and diffuser characteristics are analyzed. A point-to-point mapping calibration method is proposed to improve imaging performance, by using an image sensor to capture the coordinate distributions of the images on the LCD panel, projected onto the display space. By measuring the coordinate distributions, calibration is implemented considering both imaging aberration and geometrical inaccuracy of the whole system. The LCD-based experiment demonstrates that this method can achieve not only fast and precise calibration but also easy scalability, flexible depth, and angular range. A touchable floating 3D scene with correct occlusion, high image resolution, and a large continuous viewing angular range can be observed.

  13. Super high precision 200 ppi liquid crystal display series; Chokoseido 200 ppi ekisho display series

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In mobile equipment, in demand is a high precision liquid crystal display (LCD) having the power of expression equivalent to printed materials like magazines because of the necessity of displaying a large amount of information on a easily potable small screen. In addition, with the spread and high-quality image of digital still cameras, it is strongly desired to display photographed digital image data in high quality. Toshiba Corp., by low temperature polysilicone (p-Si) technology, commercialized the liquid crystal display series of 200 ppi (pixels per inch) precision dealing with the rise of the high-precision high-image quality LCD market. The super high precision of 200 ppi enables the display of smooth beautiful animation comparable to printed sheets of magazines and photographs. The display series are suitable for the display of various information services such as electronic books and electronic photo-viewers including internet. The screen sizes lined up are No. 4 type VGA (640x480 pixels) of a small pocket notebook size and No. 6.3 type XGA (1,024x768 pixels) of a paperback size, with a larger screen to be furthered. (translated by NEDO)

  14. Virtual displays for 360-degree video

    Science.gov (United States)

    Gilbert, Stephen; Boonsuk, Wutthigrai; Kelly, Jonathan W.

    2012-03-01

    In this paper we describe a novel approach for comparing users' spatial cognition when using different depictions of 360- degree video on a traditional 2D display. By using virtual cameras within a game engine and texture mapping of these camera feeds to an arbitrary shape, we were able to offer users a 360-degree interface composed of four 90-degree views, two 180-degree views, or one 360-degree view of the same interactive environment. An example experiment is described using these interfaces. This technique for creating alternative displays of wide-angle video facilitates the exploration of how compressed or fish-eye distortions affect spatial perception of the environment and can benefit the creation of interfaces for surveillance and remote system teleoperation.

  15. Uniform LED illuminator for miniature displays

    Science.gov (United States)

    Medvedev, Vladimir; Pelka, David G.; Parkyn, William A.

    1998-10-01

    The Total Internally Reflecting (TIR) lens is a faceted structure composed of prismatic elements that collect a source's light over a much larger angular range than a conventional Fresnel lens. It has been successfully applied to the efficient collimation of light from incandescent and fluorescent lamps, and from light-emitting diodes (LEDs). A novel LED-powered collimating backlight is presented here, for uniformly illuminating 0.25'-diagonal miniature liquid- crystal displays, which are a burgeoning market for pagers, cellular phones, digital cameras, camcorders, and virtual- reality displays. The backlight lens consists of a central dual-asphere refracting section and an outer TIR section, properly curved with a curved exit face.

  16. Interactive displays natural human-interface technologies

    CERN Document Server

    Bhowmik, Achintya K

    2014-01-01

    One of the first books to provide an in-depth discussion of the technologies, applications and trends in the rapidly emerging field of interactive displays (touch, gesture & voice) The book will cover the technologies, applications and trends in the field of interactive displays, namely interfaces based on touch, gesture and voice and those using a combination of these technologies. The book will be split into 4 main parts with each being dedicated to a specific user interface. Part 1 ''Touch Interfaces'' will provide a review of the currently deployed touch-screen technologies and applications. It will also cover the recent developments towards achieving thinner, lightweight and cost-reduced touch screen panels in the future via integration of touch functionalities. Part 2 ''Gesture Interfaces'' will examine techniques and applications in stereoscopic 3D computer vision, structured-light 3D computer vision and time-of-flight 3D computer vision in gesture interfaces. Part 3 ''Voice Interfaces'' will revie...

  17. Micro-valve pump light valve display

    Science.gov (United States)

    Lee, Yee-Chun

    1993-01-01

    A flat panel display incorporates a plurality of micro-pump light valves (MLV's) to form pixels for recreating an image. Each MLV consists of a dielectric drop sandwiched between substrates, at least one of which is transparent, a holding electrode for maintaining the drop outside a viewing area, and a switching electrode from accelerating the drop from a location within the holding electrode to a location within the viewing area. The sustrates may further define non-wetting surface areas to create potential energy barriers to assist in controlling movement of the drop. The forces acting on the drop are quadratic in nature to provide a nonlinear response for increased image contrast. A crossed electrode structure can be used to activate the pixels whereby a large flat panel display is formed without active driver components at each pixel.

  18. Integral display for non-static observers

    Science.gov (United States)

    Dorado, Adrian; Hong, Seokmin; Saavedra, Genaro; Martinez-Corral, Manuel; Javidi, B.

    2017-05-01

    We propose to combine the Kinect and the Integral-Imaging technologies for the implementation of Integral Display. The Kinect device permits the determination, in real time, of (x,y,z) position of the observer relative to the monitor. Due to the active condition of its IR technology, the Kinect provides the observer position even in dark environments. On the other hand, SPOC 2.0 algorithm permits to calculate microimages adapted to the observer 3D position. The smart combination of these two concepts permits the implementation, for the first time we believe, of an Integral Display that provides the observer with color 3D images of real scenes that are viewed with full parallax and which are adapted dynamically to its 3D position.

  19. Visual displays and Neuro-Linguistic Programming

    Energy Technology Data Exchange (ETDEWEB)

    Brown-VanHoozer, S.A. [Argonne National Lab., Idaho Falls, ID (United States); VanHoozer, W.R. [Tranceformations Unlimited, Rigby, ID (United States)

    1994-10-01

    Advancement of computer technology is forthcoming at such a rapid pace that the research concerning the interplay of humans and computer technology is lagging far behind. One area of particular concern is the design of visual displays that are pragmatic, ``user friendly,`` and ``user assisting.`` When engineers design visual displays, they generally do so methodically and logically, but only from within their own individual perspective or ``model of the world.`` They select the human aspects which make sense to them and not necessarily to non-engineers, operators, and others. The model design is what the engineer chooses to relate, based on his or her perspective of reality. These choices limit the model design thereby excluding the users` perspective. A set of techniques which can be used to assist the designers in expanding their choices and include the users` model is Neuro-Linguistic Programming (NLP).

  20. Automated Analysis, Classification, and Display of Waveforms

    Science.gov (United States)

    Kwan, Chiman; Xu, Roger; Mayhew, David; Zhang, Frank; Zide, Alan; Bonggren, Jeff

    2004-01-01

    A computer program partly automates the analysis, classification, and display of waveforms represented by digital samples. In the original application for which the program was developed, the raw waveform data to be analyzed by the program are acquired from space-shuttle auxiliary power units (APUs) at a sampling rate of 100 Hz. The program could also be modified for application to other waveforms -- for example, electrocardiograms. The program begins by performing principal-component analysis (PCA) of 50 normal-mode APU waveforms. Each waveform is segmented. A covariance matrix is formed by use of the segmented waveforms. Three eigenvectors corresponding to three principal components are calculated. To generate features, each waveform is then projected onto the eigenvectors. These features are displayed on a three-dimensional diagram, facilitating the visualization of the trend of APU operations.

  1. Cognitive Cost of Using Augmented Reality Displays.

    Science.gov (United States)

    Baumeister, James; Ssin, Seung Youb; ElSayed, Neven A M; Dorrian, Jillian; Webb, David P; Walsh, James A; Simon, Timothy M; Irlitti, Andrew; Smith, Ross T; Kohler, Mark; Thomas, Bruce H

    2017-11-01

    This paper presents the results of two cognitive load studies comparing three augmented reality display technologies: spatial augmented reality, the optical see-through Microsoft HoloLens, and the video see-through Samsung Gear VR. In particular, the two experiments focused on isolating the cognitive load cost of receiving instructions for a button-pressing procedural task. The studies employed a self-assessment cognitive load methodology, as well as an additional dual-task cognitive load methodology. The results showed that spatial augmented reality led to increased performance and reduced cognitive load. Additionally, it was discovered that a limited field of view can introduce increased cognitive load requirements. The findings suggest that some of the inherent restrictions of head-mounted displays materialize as increased user cognitive load.

  2. Next Generation Flight Displays Using HTML5

    Science.gov (United States)

    Greenwood, Brian

    2016-01-01

    The Human Integrated Vehicles and Environments (HIVE) lab at Johnson Space Center (JSC) is focused on bringing together inter-disciplinary talent to design and integrate innovative human interface technologies for next generation manned spacecraft. As part of this objective, my summer internship project centered on an ongoing investigation in to building flight displays using the HTML5 standard. Specifically, the goals of my project were to build and demo "flight-like" crew and wearable displays as well as create a webserver for live systems being developed by the Advanced Exploration Systems (AES) program. In parallel to my project, a LabVIEW application, called a display server, was created by the HIVE that uses an XTCE (XML (Extensible Markup Language) Telemetry and Command Exchange) parser and CCSDS (Consultative Committee for Space Data System) space packet decoder to translate telemetry items sent by the CFS (Core Flight Software) over User Datagram Protocol (UDP). It was the webserver's job to receive these UDP messages and send them to the displays. To accomplish this functionality, I utilized Node.js and the accompanying Express framework. On the display side, I was responsible for creating the power system (AMPS) displays. I did this by using HTML5, CSS and JavaScript to create web pages that could update and change dynamically based on the data they received from the webserver. At this point, I have not started on the commanding, being able to send back to the CFS, portion of the displays but hope to have this functionality working by the completion of my internship. I also created a way to test the webserver's functionality without the display server by making a JavaScript application that read in a comma-separate values (CSV) file and converted it to XML which was then sent over UDP. One of the major requirements of my project was to build everything using as little preexisting code as possible, which I accomplished by only using a handful of Java

  3. Design Issues in Video Disc Map Display.

    Science.gov (United States)

    1984-10-01

    design, several variations in overlay were either observed, mentioned in conversation, or came to mind, and these include: (a) pointing to a menu of...Schmandt, C. (1980), "Soft Typography ", Information Processing 󈨔, S.H. Lavington (ed.), North-Holland Publishing Co., pp. 1027-1031. Describes a method...first .. i symbol in the menu along the bottom of the screen and has then touched the displayed map where that symbol is to apppear. The lower photo

  4. Vision Algorithms Catch Defects in Screen Displays

    Science.gov (United States)

    2014-01-01

    Andrew Watson, a senior scientist at Ames Research Center, developed a tool called the Spatial Standard Observer (SSO), which models human vision for use in robotic applications. Redmond, Washington-based Radiant Zemax LLC licensed the technology from NASA and combined it with its imaging colorimeter system, creating a powerful tool that high-volume manufacturers of flat-panel displays use to catch defects in screens.

  5. Predictive Displays for High Latency Teleoperation

    Science.gov (United States)

    2016-08-04

    presented to operator Original Image Predicted Image Motion Perspective transform Perspective transform Ground plane Far plane Illustration purposes...5 • Longitudinal model incorporates propulsion , brake, drag, grade. • Lateral/yaw model incorporates steer. • Prediction...System Layout 0 1 2 2’ x0 z0 y0 y1 x1 z1 y2 -x2 z2 Ground plane Far plane BRUDNAK, “PREDICTIVE DISPLAYS FOR HIGH LATENCY TELEOPERATION” Projection Back to

  6. SureTrak Probability of Impact Display

    Science.gov (United States)

    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.

  7. Three-dimensional image display in medicine.

    Science.gov (United States)

    Mankovich, N J; Robertson, D R; Cheeseman, A M

    1990-05-01

    This article is a tutorial on the methods used to create three-dimensional (3-D) images for use in displaying patient anatomy. This new view into anatomy has developed over the last 10 years from the need of surgeons, radiation therapists, and radiologists to integrate the many images resulting from the recent growth in tomographic imaging including computed tomography (CT) and magnetic resonance imaging (MRI). CT and MRI studies result in 30 to 100 images. 3-D imaging processes and integrates this image data volume and extracts more meaningful, derivative images via multiplanar reconstruction (MPR), shaded surface processing, or volumetric processing. MPR reslices the image volume to produce novel views of patient anatomy while retaining the image voxel intensities. Realistic shaded surface display of 3-D objects can involve extensive processing of the images to create computer representations of objects rendered into a displayable 3-D scene. Volumetric imaging combines the voxel processing of MPR with the techniques of tissue classification and surface shading to produce novel projections of the image data volume that allow automated creation of 3-D scenes without recourse to the complexities of object delineation. As the ultimate 3-D display, recent advances in computer-aided design (CAD) and computer-aided manufacturing (CAM) allow the fabrication of physical models of anatomy using computer-controlled milling machines. New technology that actually builds the model layer by layer from a liquid plastic offers the possibility of complete models with intact internal anatomy. The growth in 3-D is certain as hardware and software costs decrease and medical professionals find further applications for this technology.

  8. A Conceptual Framework for Ambient Learning Displays

    OpenAIRE

    Börner, Dirk; Kalz, Marco; Specht, Marcus

    2010-01-01

    Börner, D., Kalz, M., & Specht, M. (2010). A Conceptual Framework for Ambient Learning Displays. In B. Chang, T. Hirashima, & H. Ogata (Eds.), Joint Proceedings of the Work-in-Progress Poster and Invited Young Researcher Symposium for the 18th International Conference on Computers in Education (pp. 34-36). November, 29 - December, 3, 2010, Putrajaya, Malaysia: Asia-Pacific Society for Computers in Education.

  9. Electronic control/display interface technology

    Science.gov (United States)

    Parrish, R. V.; Busquets, A. M.; Murray, R. F.; Hatfield, J. J.

    1985-01-01

    An effort to produce a representative workstation for the Space Station Data Management Test Bed that provides man/machine interface design options for consolidating, automating, and integrating the space station work station, and hardware/software technology demonstrations of space station applications is discussed. The workstation will emphasize the technologies of advanced graphics engines, advanced display/control medias, image management techniques, multifunction controls, and video disk utilizations.

  10. Remote Software Application and Display Development

    Science.gov (United States)

    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).

  11. Filmless multimedia display following cardiac catheterization.

    Science.gov (United States)

    Mathewson, J W

    1997-08-01

    In traditional cardiac catheterization laboratories, anatomic images are acquired onto 35-mm cine film and presented in series with related information days, weeks, or months later to an audience of decision-makers. These data are projected onto a convenient light-colored wall or silver screen, while echocardiograms and electrophysiologic data are displayed using small single-user computer monitors. This presentation format is not ideal, because full audience participation is not fostered, image quality may be degraded, and small computer screens can be adequataly visualized only by those individuals immediately in front of them. Modern video multimedia systems now make an ideal data presentation format practical, in which all types of media including digitally acquired angiograms can be displayed in parallel with full annotation, using large diagonal multisync color monitors. This communication discusses how to design a multimedia conference center in which remotely acquired filmless digital images can be displayed and processed together with all other pertinent cardiac multimedia to a large audience.

  12. Display applications for holographic optical elements

    Science.gov (United States)

    Gambogi, William J., Jr.; Armstrong, Mark L.; Hamzavy, Babak; Levin, Michael L.; Mackara, Steven R.; Molteni, William J., Jr.; Steijn, Kirk W.; Stevenson, Sylvia H.; Felder, Thomas C.; Heidt, Gerald L.; Miller, Douglas R.

    2001-06-01

    In the last several years, holographic elements have been introduced into a wide array of display applications. Holographic Reflectors are incorporated with liquid crystal displays to shift optimum viewing angle away form specular glare and raise brightness by concentrating light at a convenient viewing angle. Reflectors can be produced in blue, green, gold, red, or white colors. Denso GlassVision projection screens incorporate transmission holograms to efficiently direct projected light to the viewer in a screen that reverts to clear glass When the projection image is turned off. JVC has introduce da large-screen HDTV that uses a holographic color filter to separate blue, green, and red light from the illumination beam, and direct the sorted colors to the appropriate color pixel, raising brightness with a passive component. Most recently, HOE prototypes have been produced to improve the efficiency of portable liquid crystal color display. Front diffuser are affixed to the face of reflective color LCDs and direct output light from the LCD to the viewer at a convenient viewing angle in a concentrated view cone. Reflective Colors Filters are pixelated diffuse reflectors internal to the LCD structure and aligned to the LCD matrix. These reflective filters provide higher brightness, larger color gamut, and better color saturation including a holographic grating are under development to provide wider view angle in direct-view LCDs.

  13. Helmet-Mounted Display Design Guide

    Science.gov (United States)

    Newman, Richard L.; Greeley, Kevin W.

    1997-01-01

    Helmet Mounted Displays (HMDs) present flight, navigation, and weapon information in the pilot's line of sight. The HMD was developed to allow the pilot to retain aircraft and weapon information while looking off boresight. This document reviews current state of the art in HMDs and presents a design guide for the HMD engineer in identifying several critical HMD issues: symbol stabilization, inadequate definitions, undefined symbol drive laws, helmet considerations, and Field Of View (FOV) vs. resolution tradeoff requirements. In particular, display latency is a key issue for HMDs. In addition to requiring further experimental studies, it impacts the definition and control law issues. Symbol stabilization is also critical. In the case of the Apache helicopter, the lack of compensation for pilot head motion creates excessive workload during hovering and Nap Of the Earth (NOE) flight. This translates into excessive training requirements. There is no agreed upon set of definitions or descriptions for how HMD symbols are driven to compensate for pilot head motion. A set of definitions is proposed to address this. There are several specific areas where simulation and flight experiments are needed: development of hover and NOE symbologies which compensate for pilot head movement; display latency and sampling, and the tradeoff between FOV, sensor resolution and symbology.

  14. OTFT backplanes for integration into flexible displays

    Science.gov (United States)

    Cooke, Michael D.; McCall, Keri L.; Bird, David P.; Lee, Yong Uk; Pease, Tim; Chan, Sam Y. F.; Palumbo, Marco; McGloin, Steve; Ogier, Simon D.

    2010-08-01

    Recent developments in high performance organic semiconductor (OSC) materials have shown charge mobilities in the range of 2 to 5 cm2/Vs. We present our progress in fabricating organic thin film transistor (OTFT) backplanes using a low temperature process (100°C maximum) and the prospects for integration into flexible displays. Discussion is made of the fabrication process using typical flat panel display equipment as well as the possibility of further device enhancement using ink jet printing technologies. We show the feasibility of achieving an average panel mobility of >1 cm2/Vs on a range of transistor array sizes. Electrical data is presented to show how the parameters of interest, (mobility, on/off ratio, Vth), vary across an array as well as some of the scaling factors that will be important for the final device architecture. Finally, we discuss how these devices have the potential for integration into a range of displays (for example, e-paper and OLEDs) for commercial exploitation.

  15. LED-driven backlights for automotive displays

    Science.gov (United States)

    Strauch, Frank

    2007-09-01

    As a light source the LED has some advantage over the traditionally used fluorescence tube such as longer life or lower space consumption. Consequently customers are asking for the LED lighting design in their products. We introduced in a company owned backlight the white LED technology. This step opens the possibility to have access to the components in the display market. Instead of having a finalized display product which needs to be integrated in the head unit of a car we assemble the backlight, the glass, own electronics and the housing. A major advantage of this concept is the better control of the heat flow generated by the LEDs to the outer side because only a common housing is used for all the components. Also the requirement for slim products can be fulfilled. As always a new technology doesn't come with advantages only. An LED represents a point source compared to the well-known tube thus requiring a mixing zone for the multiple point sources when they enter a light guide. This zone can't be used in displays because of the lack of homogeneity. It's a design goal to minimize this zone which can be helped by the right choice of the LED in terms of slimness. A step ahead is the implementation of RGB LEDs because of their higher color rendering abilities. This allows for the control of the chromaticity point under temperature change but as a drawback needs a larger mixing zone.

  16. Intraoperative determination and display of cortical function

    Science.gov (United States)

    Bass, W. Andrew; Galloway, Robert L., Jr.; Dawant, Benoit M.; Maciunas, Robert J.

    1997-05-01

    One of the most important issues in neurosurgical lesion resection is margin definition. And while there is still some effort required to exactly determine lesion boundaries from tomographic images, the lesions are at least perceptible on the scans. What is not visible is the location of function. Functional imaging such as PET and fMRI hold some promise for cortical function localization; however, intraoperative cortical mapping can provide exact localization of function without ambiguity. Since tomographic images can provide lesion margin definition and cortical mapping can provide functional information we have developed a system for combining the two in our Interactive, Image-Guided system. For cortical surface mapping we need a surface description. Brain contours are extracted from a MRI volume using a deformable model approach and rendered from multiple angular positions. As the surgeon moves a probe, its position is displayed on the view closes to the angular position of the probe. During functional mapping, positive response to stimulation result in a color overlay 'dot' added to the cortical surface display. Different colored dots are used to distinguish between motor function and language function. And a third color is used to display overlapping functionality. This information is used to guide the resection around functionally eloquent areas of the cortex.

  17. Telerobotics - Display, control, and communication problems

    Science.gov (United States)

    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.

  18. Interaction Analysis through Proteomic Phage Display

    Directory of Open Access Journals (Sweden)

    Gustav N. Sundell

    2014-01-01

    Full Text Available Phage display is a powerful technique for profiling specificities of peptide binding domains. The method is suited for the identification of high-affinity ligands with inhibitor potential when using highly diverse combinatorial peptide phage libraries. Such experiments further provide consensus motifs for genome-wide scanning of ligands of potential biological relevance. A complementary but considerably less explored approach is to display expression products of genomic DNA, cDNA, open reading frames (ORFs, or oligonucleotide libraries designed to encode defined regions of a target proteome on phage particles. One of the main applications of such proteomic libraries has been the elucidation of antibody epitopes. This review is focused on the use of proteomic phage display to uncover protein-protein interactions of potential relevance for cellular function. The method is particularly suited for the discovery of interactions between peptide binding domains and their targets. We discuss the largely unexplored potential of this method in the discovery of domain-motif interactions of potential biological relevance.

  19. Interaction Analysis through Proteomic Phage Display

    Science.gov (United States)

    2014-01-01

    Phage display is a powerful technique for profiling specificities of peptide binding domains. The method is suited for the identification of high-affinity ligands with inhibitor potential when using highly diverse combinatorial peptide phage libraries. Such experiments further provide consensus motifs for genome-wide scanning of ligands of potential biological relevance. A complementary but considerably less explored approach is to display expression products of genomic DNA, cDNA, open reading frames (ORFs), or oligonucleotide libraries designed to encode defined regions of a target proteome on phage particles. One of the main applications of such proteomic libraries has been the elucidation of antibody epitopes. This review is focused on the use of proteomic phage display to uncover protein-protein interactions of potential relevance for cellular function. The method is particularly suited for the discovery of interactions between peptide binding domains and their targets. We discuss the largely unexplored potential of this method in the discovery of domain-motif interactions of potential biological relevance. PMID:25295249

  20. Head-Worn Displays: A Review

    Science.gov (United States)

    Cakmakci, Ozan; Rolland, Jannick

    2006-09-01

    Head-worn display design is inherently an interdisciplinary subject fusing optical engineering, optical materials, optical coatings, electronics, manufacturing techniques, user interface design, computer science, human perception, and physiology for assessing these displays. This paper summarizes the state-of-the-art in head-worn display design (HWD) and development. This review is focused on the optical engineering aspects, divided into different sections to explore principles and applications. Building on the guiding fundamentals of optical design and engineering, the principles section includes a summary of microdisplay or laser sources, the Lagrange invariant for understanding the trade-offs in optical design of HWDs, modes of image presentation (i.e., monocular, biocular, and stereo) and operational modes such as optical and video see-through. A brief summary of the human visual system pertinent to the design of HWDs is provided. Two optical design forms, namely, pupil forming and non-pupil forming are discussed. We summarize the results from previous design work using aspheric, diffractive, or holographic elements to achieve compact and lightweight systems. The applications section is organized in terms of field of view requirements and presents a reasonable collection of past designs.