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1

Nanotechnology Advancements Video Clip  

NSDL National Science Digital Library

Here is a great video clip on technology advancements being developed by Nokia. These include electronics materials and films that can be stretched or folded to wear as a bracelet on your arm, used to sense different types of contamination in the air or on fruit, touch key pads that go from being flat on the surface to being raised like touch button and many more fascinating ways nanotechnology processes films and materials will be used. A wonderful introduction video clip on what might be possible with nanotechnology.

2008-10-29

2

The Video Generation.  

ERIC Educational Resources Information Center

|Video games are neither neutral nor harmless but represent very specific social and symbolic constructs. Research on the social content of today's video games reveals that sex bias and gender stereotyping are widely evident throughout the Nintendo games. Violence and aggression also pervade the great majority of the games. (MLF)|

Provenzo, Eugene F., Jr.

1992-01-01

3

Automatic generation of personalized music sports video  

Microsoft Academic Search

In this paper, we propose a novel automatic approach for personalized music sports video generation. Two research challenges, semantic sports video content selection and automatic video composition, are addressed. For the first challenge, we propose to use multi-modal (audio, video and text) feature analysis and alignment to detect the semantic of events in sports video. For the second challenge, we

Jinjun Wang; Changsheng Xu; Engsiong Chng; Ling-Yu Duan; Kongwah Wan; Qi Tian

2005-01-01

4

Advances in Video Summarization and Skimming  

Microsoft Academic Search

This chapter summarizes recent advances in video abstraction for fast content browsing, skimming, transmission, and retrieval\\u000a of massive video database which are demanded in many system applications, such as web multimedia, mobile multimedia, interactive\\u000a TV, and emerging 3D TV. Video summarization and skimming aims to provide an abstract of a long video for shortening the navigation\\u000a and browsing the original

Richard M. Jiang; Abdul H. Sadka; Danny Crookes

5

Advanced Laboratory for Image and Video Engineering.  

National Technical Information Service (NTIS)

This report announces the completion of an advanced laboratory for image and video processing that will allow UTSA faculty and students to do complex analysis of images and videos. Such image analysis is of critical interest to both U.S. military and civi...

L. Akers

2000-01-01

6

Naval threat countermeasure simulator and the IR_CRUISE_missiles models for the generation of infrared (IR) videos of maritime targets and background for input into advanced imaging IR seekers  

NASA Astrophysics Data System (ADS)

A new hardware-in-the-loop modeling technique was developed at the US Naval Research Laboratory (NRL) for the evaluation of IR countermeasures against advanced IR imaging anti-ship cruise missiles. The research efforts involved the creation of tools to generate accurate IR imagery and synthesize video to inject in to real-world threat simulators. A validation study was conducted to verify the accuracy and limitations of the techniques that were developed.

Taczak, Thomas M.; Dries, John W.; Gover, Robert E.; Snapp, Mary Ann; Williams, Elmer F.; Cahill, Colin P.

2002-07-01

7

Development of Advanced Image\\/Video Servers in A Video on Demand Testbed  

Microsoft Academic Search

This paper describes our current effort in building a video server with advanced capabilities of storage\\/index ing\\/ retrieval. The target application at this stage is Columbia University's Video on Demand (VOD) testbed. Our research focus covers innovative content-based visual query, multi-resolution (MR) video coding, efficient manipulation of compressed video, and optimal real-time video storage architectures. An important aim of our

Shih-Fu Chang; Dimitris Anastassiou; Alexandros Eleftheriadis; Jianhao Meng; Seungyup Paek; Sassan Pejhan; John R. Smith

8

Generation of Personalized Music Sports Video Using Multimodal Cues  

Microsoft Academic Search

In this paper, we propose a novel automatic approach for personalized music sports video generation. Two research challenges are addressed, specifically the semantic sports video content extraction and the automatic music video composition. For the first challenge, we propose to use multimodal (audio, video, and text) feature analysis and alignment to detect the semantics of events in broadcast sports video.

Jinjun Wang; Engsiong Chng; Changsheng Xu; Hanqing Lu; Qi Tian

2007-01-01

9

Home-video content analysis for MTV-style video generation  

Microsoft Academic Search

Intelligent video pre-processing and authoring techniques that facilitate people to create MTV-style music video clips are investigated in this research. First, we present an automatic approach to detect and remove bad shots often occurring in home video, such as video with poor lighting or motion blur. Then, we consider the generation of MTV-style video clips by performing video and music

Shih-Hung Lee; Chia-Hung Yeh; C. C. Jay Kuo

2005-01-01

10

Video coding: Death is not near  

Microsoft Academic Search

Efficient compression and network compatibility are two challenging tasks for video coding. This paper provides an overview of advanced techniques for the next generation video coding including high efficiency video coding, content-based video coding, distributed video coding, scalable video coding and multiple description video coding. Keywords—video compression, video transmission. I. INTRODUCTION With the popularity of digital video applications, efficiently representing

Meilin Yang; Ye He; Fengqing Zhu; Marc Bosch; Mary Comer; Edward J. Delp

2011-01-01

11

Automatic music video generation based on temporal pattern analysis  

Microsoft Academic Search

Music video (MV) is a short film meant to present a visual representation of a popular music song. In this paper, we present a system that automatically generates MV-like videos from personal home videos based on observations that generally there are obvious repetitive visual and aural patterns in MVs. Based on a set of video and music analysis algorithms, the

Xian-Sheng HUA; Lie LU; Hong-Jiang ZHANG

2004-01-01

12

Advanced medical video services through context-aware medical networks.  

PubMed

The aim of this paper is to present a framework for advanced medical video delivery services, through network and patient-state awareness. Under this scope a context-aware medical networking platform is described. The developed platform enables proper medical video data coding and transmission according to both a) network availability and/or quality and b) patient status, optimizing thus network performance and telediagnosis. An evaluation platform has been developed based on scalable H.264 coding of medical videos. Corresponding results of video transmission over a WiMax network have proved the effectiveness and efficiency of the platform providing proper video content delivery. PMID:18002643

Doukas, Charalampos N; Maglogiannis, Ilias; Pliakas, Thomas

2007-01-01

13

Home-video content analysis for MTV-style video generation  

NASA Astrophysics Data System (ADS)

Intelligent video pre-processing and authoring techniques that facilitate people to create MTV-style music video clips are investigated in this research. First, we present an automatic approach to detect and remove bad shots often occurring in home video, such as video with poor lighting or motion blur. Then, we consider the generation of MTV-style video clips by performing video and music tempo analysis and seeking an effective way in matching these two tempos. Experiment results are given to demonstrate the feasibility and efficiency of the proposed techniques for home video editing.

Lee, Shih-Hung; Yeh, Chia-Hung; Kuo, C. C. J.

2004-12-01

14

Generation Of Personalized Abstract Of Sports Video  

Microsoft Academic Search

Video abstraction is defined as creating a shorter video clip from an original video stream. In this paper, we propose a method of gener- ating a personalized abstract of broadcasted sports video. We first detect significant events from the video stream by matching with gamestats in which highlights of the game are described. Textual information in an overlay appearing on

Noboru Babaguchi; Yoshihiko Kawai; Tadahiro Kitahashi

2001-01-01

15

MTV-style home video generation via tempo analysis  

NASA Astrophysics Data System (ADS)

Intelligent video pre-processing and authoring techniques that facilitate people to create MTV-style music video clips are investigated in this research. First, we present an automatic approach to detect and remove bad shots often occurring in home video, such as video with poor lighting or motion blur. Then, we consider the generation of MTV-style video clips by performing video and music tempo analysis and seeking an effective way in matching these two tempos. Experiment results are given to demonstrate the feasibility and efficiency of the proposed techniques for home video editing.

Lee, Shih-Hung; Yeh, Chia H.; Kuo, C.-C. Jay

2004-10-01

16

Audio keywords generation for sports video analysis  

Microsoft Academic Search

Sports video has attracted a global viewership. Research effort in this area has been focused on semantic event detection in sports video to facilitate accessing and browsing. Most of the event detection methods in sports video are based on visual features. However, being a significant component of sports video, audio may also play an important role in semantic event detection.

Min Xu; Changsheng Xu; Lingyu Duan; Jesse S. Jin; Suhuai Luo

2008-01-01

17

Automatic music video generating system by remixing existing contents in video hosting service based on hidden Markov model  

Microsoft Academic Search

User-generated music video clip called MAD movie, which is a derivative (mixture or combination) of some original video clips, are gaining popularity on the web and a lot of them have been uploaded and are available on video hosting web services. Such a MAD music video clip consists of audio signals and video frames taken from other original video clips.

Hayato Ohya; Shigeo Morishima

2012-01-01

18

Advances in Digital Video Content Protection  

Microsoft Academic Search

The use of digital video offers immense opportunities for creators; however, the ability for anyone to make perfect copies and the ease by which those copies can be distributed also facilitate misuse, illegal copying and distribution (\\

EUGENE T. LIN; AHMET M. ESKICIOGLU; REGINALD L. LAGENDIJK; EDWARD J. DELP

2005-01-01

19

Automatic segmentation of moving objects for video object plane generation  

Microsoft Academic Search

The new video coding standard MPEG-4 is enabling content-based functionalities. It takes advantage of a prior decomposition of sequences into video object planes (VOPs) so that each VOP represents one moving object. A comprehensive review summarizes some of the most important motion segmentation and VOP generation techniques that have been proposed. Then, a new automatic video sequence segmentation algorithm that

Thomas Meier; King N. Ngan

1998-01-01

20

A System for Automatic Generation of Music Sports-Video  

Microsoft Academic Search

In this paper, we present a new representation of sports video abstract— Music Sports-Video (MSV), which provides exciting sports content accompanied with high quality background music for audiences and is available for high-quality audio-visual entertainment. We also propose a system generating MSV from user-provided sports video and music automatically. Firstly, the given sports video is segmented into a series of

Weigang Zhang; Liyuan Xing; Qingming Huang; Wen Gao

2005-01-01

21

Video frame store: An advanced solid state recorder  

NASA Astrophysics Data System (ADS)

In many security applications, solid state recorders (SSRs) have been used to quickly record and playback video images of a scene when an alarm occurs in that scene. Unlike video cassette recorders (VCRs) which take a second or two to start, SSRs can respond to a command from a host computer in less than 1/30th of a second. Therefore, they can be a very useful tool for assessing video alarms. Current commercial SSRs, however, have four major drawbacks: high cost; inability to record asynchronous videos; inflexible system configuration; and inability to guarantee the integrity of the response to the host's commands. The Video Frame Store (VFS) is an advanced SSR that provides an effective solution to the above problems. The VFS consists of commercial hardware products and Sandia-developed software. A VFS unit that stores 128 video frames costs less than half of a typical SSR. In addition to the many basic features of a typical SSR, the VFS also provides a number of advanced features: user friendly menu for system configuration and setup; expandable video memory size from a minimum of 32 frames to a maximum of 512 frames; image pan, scroll and zoom; and reduction of image resolution to increase storage capacity. The hardware and software implementation as well as the advanced features is discussed.

Thai, Tan; Walker, J.

22

ADVANCED STEAM GENERATORS  

SciTech Connect

Concerns about climate change have encouraged significant interest in concepts for ultra-low or ''zero''-emissions power generation systems. In some proposed concepts, nitrogen is removed from the combustion air and replaced with another diluent such as carbon dioxide or steam. In this way, formation of nitrogen oxides is prevented, and the exhaust stream can be separated into concentrated CO{sub 2} and steam or water streams. The concentrated CO{sub 2} stream could then serve as input to a CO{sub 2} sequestration process or utilized in some other way. Some of these concepts are illustrated in Figure 1. This project is an investigation of one approach to ''zero'' emission power generation. Oxy-fuel combustion is used with steam as diluent in a power cycle proposed by Clean Energy Systems, Inc. (CES) [1,2]. In oxy-fuel combustion, air separation is used to produce nearly pure oxygen for combustion. In this particular concept, the combustion temperatures are moderated by steam as a diluent. An advantage of this technique is that water in the product stream can be condensed with relative ease, leaving a pure CO{sub 2} stream suitable for sequestration. Because most of the atmospheric nitrogen has been separated from the oxidant, the potential to form any NOx pollutant is very small. Trace quantities of any minor pollutants species that do form are captured with the CO{sub 2} or can be readily removed from the condensate. The result is a nearly zero-emission power plant. A sketch of the turbine system proposed by CES is shown in Figure 2. NETL is working with CES to develop a reheat combustor for this application. The reheat combustion application is unusual even among oxy-fuel combustion applications. Most often, oxy-fuel combustion is carried out with the intent of producing very high temperatures for heat transfer to a product. In the reheat case, incoming steam is mixed with the oxygen and natural gas fuel to control the temperature of the output stream to about 1480 K. A potential concern is the possibility of quenching non-equilibrium levels of CO or unburned fuel in the mixing process. Inadequate residence times in the combustor and/or slow kinetics could possibly result in unacceptably high emissions. Thus, the reheat combustor design must balance the need for minimal excess oxygen with the need to oxidize the CO. This paper will describe the progress made to date in the design, fabrication, and simulation of a reheat combustor for an advanced steam generator system, and discuss planned experimental testing to be conducted in conjunction with NASA Glenn Research Center-Plumb Brook Station.

Richards, Geo. A.; Casleton, Kent H.; Lewis, Robie E.; Rogers, William A. (U.S. DOE National Energy Technology Laboratory); Woike, Mark R.; Willis; Brian P. (NASA Glenn Research Center)

2001-11-06

23

Rate-Distortion Optimal Video Summary Generation  

Microsoft Academic Search

The need for video summarization originates pri- marily from a viewing time constraint. A shorter version of the original video sequence is desirable in a number of applications. Clearly, a shorter version is also necessary in applications where storage, communication bandwidth, and\\/or power are limited. The summarization process inevitably introduces distortion. The amount of summarization distortion is related to its

Zhu Li; Guido M. Schuster; Aggelos K. Katsaggelos; Bhavan Gandhi

2005-01-01

24

Secure advanced video coding based on selective encryption algorithms  

Microsoft Academic Search

Advanced video coding is recently announced and widely used, although the according protection means have not been developed thoroughly. In this paper, a secure AVC coding scheme is presented based on some partial encryption algorithms. During AVC encoding, such sensitive data as intra-prediction mode, residue data and motion vector are encrypted partially. Among them, the infra-prediction mode is encrypted based

Shiguo Lian; Zhongxuan Liu; Zhen Ren; Haila Wang

2006-01-01

25

The Generative Effects of Instructional Organizers with Computer-Based Interactive Video.  

ERIC Educational Resources Information Center

This study compared the use of three instructional organizers--the advance organizer (AO), the participatory pictorial graphic organizer (PGO), and the final form pictorial graphic organizer (FGO)--in the design and use of computer-based interactive video (CBIV) programs. That is, it attempted to determine whether a less generative or more…

Kenny, Richard F.

26

NASA - "Explorer Generation Music Video" (2003)  

NASA Website

NASA.gov brings you images, videos and interactive features from the unique perspective of America's space agency. Get the latest updates on NASA missions, subscribe to blogs, RSS feeds and podcasts, watch NASA TV live, or simply read about our ...

27

Comparing Simple and Advanced Video Tools as Supports for Complex Collaborative Design Processes  

Microsoft Academic Search

Working with digital video technologies, particularly advanced video tools with editing capabilities, offers new prospects for meaningful learning through design. However, it is also possible that the additional complexity of such tools does not advance learning. We compared in an experiment the design processes and learning outcomes of 24 collaborating participant pairs (dyads) using 2 contrasting types of video tools

Carmen Zahn; Roy Pea; Friedrich W. Hesse; Joe Rosen

2010-01-01

28

Second generation PFB for advanced power generation  

SciTech Connect

Research is being conducted under a United States Department of Energy (USDOE) contract to develop a new type of coal-fueled plant for electric power generation. This new type of plant-called an advanced or second-generation pressurized fluidized bed combustion (APFBC) plant-offers the promise of 45-percent efficiency (HHV), with emissions and a cost of electricity that are significantly lower than conventional pulverized-coal-fired plants with scrubbers. This paper summarizes the pilot plant R&D work being conducted to develop this new type of plant. Although pilot plant testing is still underway, preliminary estimates indicate the commercial plant Will perform better than originally envisioned. Efficiencies greater than 46 percent are now being predicted.

Robertson, A.; Van Hook, J.

1995-11-01

29

Advanced video technologies to support collaborative learning in school education and beyond  

Microsoft Academic Search

The aim of the paper is to characterize two new advanced video technology software systems developed for uses in collaborative learning (DIVER 1 and HyperVideo 2 ), and how they extend the paradigms of video use in classrooms today. The rationale for and characteristics of these tools are described, and early experiences with their use are characterized.

Carmen Zahn; Friedrich Hesse; Roy Pea; Michael Mills; Joseph Rosen

30

Generation of high-quality depth maps using hybrid camera system for 3-D video  

Microsoft Academic Search

In this paper, we present a hybrid camera system combining one time-of-flight depth camera and multiple video cameras to generate multi-view video sequences and their corresponding depth maps. In order to obtain the multi-view video-plus-depth data using the hybrid camera system, we capture multi-view videos using multiple video cameras and a single view depth video with the depth camera. After

Eun-Kyung Lee; Yo-Sung Ho

2011-01-01

31

Comparing Simple and Advanced Video Tools as Supports for Complex Collaborative Design Processes  

ERIC Educational Resources Information Center

|Working with digital video technologies, particularly advanced video tools with editing capabilities, offers new prospects for meaningful learning through design. However, it is also possible that the additional complexity of such tools does "not" advance learning. We compared in an experiment the design processes and learning outcomes of 24…

Zahn, Carmen; Pea, Roy; Hesse, Friedrich W.; Rosen, Joe

2010-01-01

32

Daily Digest Generation of Kindergartner from Surveillance Video  

NASA Astrophysics Data System (ADS)

Nowadays, children spend most of their time in kindergarten as well as nursery schools. This directly brings a requirement to the parents: they want to see how everyday goes with their kids. To meet this requirement, in this paper, we propose a method to automatically generate video digest that records kids' daily life in kindergarten. Our method involves two steps. The first is to efficiently narrow down the searching space by analyzing the noisy RFID tag log which records kids' temporal location, while the second is to use visual features and time constrains to recognize events and pick out video segments for each individual event. The accuracy of our method was evaluated with quantitative experiment and the superior of the digest that generated by our method was confirmed via questionnaire survey.

Ishikawa, Tomoya; Wang, Yu; Kato, Jien

33

Human behavior understanding for video surveillance: Recent advance  

Microsoft Academic Search

With the wide applications of video cameras in surveillance, video analysis technologies have attracted the attention from the researchers in computer vision field. In video analysis, human behavior recognition and understanding is an important research direction. By recognition and understanding the human behaviors, we can predict and recognize the happening of crimes and help to the police or other agencies

Xin Xu; Jinshan Tang; Xiaorning Liu; Xiaolong Zhang

2010-01-01

34

Video technology to advance safety in the operating room and perioperative environment.  

PubMed

Video is a powerful medium and is underused for patient safety in several areas: education, real-time consultation, process improvement, research, and workflow coordination. We illustrate this point through an overview of uses of video in health care by the authors and others in several institutions. These uses were in the context of team work training, operating room coordination, technical skills of invasive procedures, process improvement, telementoring, and multimedia video records. Also described are several key issues associated with the use of video, such as ethics and legal concerns. Technology advances and new methods will make video an important tool for improving patient safety. PMID:17442881

Xiao, Yan; Schimpff, Stephen; Mackenzie, Colin; Merrell, Ronald; Entin, Eileen; Voigt, Roger; Jarrell, Bruce

2007-03-01

35

Advanced Photon Source (APS) Colloquium Series Video Collection from 2009  

DOE Data Explorer

The Advanced Photon Source (APS) at Argonne National Laboratory enables scientists to pursue new knowledge about the structure and function of materials in the center of the Earth and in outer space, and all points in between. The monthly APS Colloquium series brings distinguished scientists in all disciplines to lecture on topics of general interest. Some of these presentations are available as integrated video and slides. The 2009 multimedia presentations available on this website are: 1) Imaging Nano Porous Gold with 2 and 3 Dimensions, David C. Dunand, Northwestern University; 2) Fast Crystals and Strong Glasses, David Weitz, Harvard University; 3) Physical Principles of Skeletal Minerals Revealed with Spectromicroscopy, Pupa Gilbert, University of Wisconsin-Madison; 4) MBE Growth of Ferromagnetic Metal/Compound Semiconductor Heterostructures for Spintronics, Chris Palmstrom, UCLA, Santa Barbara; 5) Searching for Sustainable and "Greener" Li-ion Batteries, Jean-Marie Tarascon, University of Picardie (Aimens) France; 6) Oxide Surfaces, Dr. Laurence Marks, Northwestern University; 7) Spinal Injury: Regeneration, Recovery, and a Possible New Approach, Dr. Avis Cohen, University of Maryland, Department of Biology.

36

Advanced Photon Source (APS) Colloquium Series Video Collection from 2005  

DOE Data Explorer

The Advanced Photon Source (APS) at Argonne National Laboratory is a DOE National Scientific User Facility providing x-ray beams for research in almost all scientific disciplines. These x-rays allow scientists to pursue new knowledge about the structure and function of materials in the center of the Earth and in outer space, and all points in between. The monthly APS Colloquium series brings distinguished scientists in all disciplines to lecture on topics of general interest. Some of these presentations are available as integrated video and slides. The 2005 multimedia presentations available on this website are: 1) The Swiss Light Source, J. Friso van der Veen, Paul Scherrer Institut, Villigen and ETH-Zurich; 2) The Silicon Route to a New Kilogram, Peter Becker, Physicalisch-Technische Bundesanstalt; 3) Metal Cycling by Bacteria: Moving Electrons Around, Ken Nealson, USC; 4) The Structure of Liquid Surfaces, Peter S. Pershan; 5) Science and Engineering of an Operational Tsunami Forecasting System, Frank Gonzalez, NOAA; 6) Glass Formation by a Nucleation and Growth Process as in a First-order Transition, John W. Cahn, NIST; 7) Biomedical Applications of Microprobe Analysis, Peter Ingram, Duke University Medical Center.

37

Advanced Photon Source (APS) Colloquium Series Video Collection from 2004  

DOE Data Explorer

The Advanced Photon Source (APS) at Argonne National Laboratory provides this nation's (in fact, this hemisphere's) most brilliant x-ray beams for research in almost all scientific disciplines. These x-rays allow scientists to pursue new knowledge about the structure and function of materials in the center of the Earth and in outer space, and all points in between. The monthly APS Colloquium series brings distinguished scientists in all disciplines to lecture on topics of general interest. Some of these presentations are available as integrated video and slides. The 2004 multimedia presentations available on this website are: Seeing Stripes: Competition and Complexity in High-Temperature Superconductors, John Tranquada • The Interface of Art and Science in the Museum: Disclosing a 4th Dimension of Art Preservation and Connoisseurship, Franceska Casadio, Art Institute of Chicago • Microscopy with slow electrons: from LEEM to XPEEM, Ernst Bauer, Arizona State University • The Hafnium saga: Can radioactive decay be usefully controlled, Dr. John Schiffer • The Abnormal Normal State of the High-Tc Superconductors... or Undressing Electrons with Nearly a Million Gauss, Greg Boebinger, National High Magnetic Field Laboratory • The major steps in the development of the dynamical theory of X-ray diffraction: from early days to modern times, Andre Authier, Universite Pierre et Marie Curie, Paris • The Theory of High-Tc Superconductivity in Layered Cuprates, Alexei Abrikosov.

38

Advanced Photon Source (APS) Colloquium Series Video Collection from 2007  

DOE Data Explorer

The Advanced Photon Source (APS) at Argonne National Laboratory provides this nation's most brilliant x-ray beams for research, enabling scientists to pursue new knowledge across many scientific disciplines. The monthly APS Colloquium series brings these distinguished scientists to lecture on topics of general interest. Some of these presentations are available as integrated video and slides. The 2007 multimedia presentations available on this website are: 1) Shedding Synchrotron Light on a Puzzle of Glasses, Aleksandr Chumakov; 2) The Phase Problem: Related Computational Challenges, Veit Elser, Cornell University; 3) The Quantum Information Revolution: 101 Uses for Schodinger's Cat, Paul G. Kwait, University of Illinois, Urbana-Champaign; 4) High-Resolution Spectroscopy with the Chandra X-ray Observatory, Claude R Canizares, MIT; 5) Photonic Crystals from Order to Disorder, Steven G. Johnson, Assist. Professor, Applied Mathematics, MIT; 6) Light's Darkness, Miles Padgett, University of Glasgow; 7) X-rays at Solid-Liquid Surfaces, Helmut Dosch, Max Planck Institute for Metals Research; 8) Synchrotron Probes of Emergent Electronic States of Matter in Solids, J. W. Allen, University of Michigan; 9) The Whys and How of Ultrafast X-ray Science, Jerome Hastings, SLAC.

39

Analyzing the video popularity characteristics of large-scale user generated content systems  

Microsoft Academic Search

User generated content (UGC), now with millions of video producers and consumers, is re-shaping the way people watch video and TV. In particular, UGC sites are creating new viewing patterns and social interactions, empowering users to be more creative, and generating new business opportunities. Compared to traditional video-on-demand (VoD) systems, UGC services allow users to request videos from a potentially

Meeyoung Cha; Haewoon Kwak; Pablo Rodriguez; Yong-Yeol Ahn; Sue Moon

2009-01-01

40

Advancing videometry through applications: quantification of neonatal seizures from video recordings  

Microsoft Academic Search

This paper presents some recent advances in videometry that resulted from the development of video processing and analysis procedures designed to facilitate the quantification of neonatal seizures. This paper presents two automated procedures developed to extract temporal information from video recordings of neonatal seizures in the form of temporal motion strength and motor activity signals. These signals constitute an effective

Nicolaos B. Karayiannis

2002-01-01

41

Advances in region-based texture modeling for video compression  

NASA Astrophysics Data System (ADS)

This paper presents a parametric video compression framework which exploits both texture warping and dynamic texture synthesis. A perspective motion model is employed to warp static textures and a dynamic texture model is used to synthesise time-varying textures. An artefact-based video quality metric (AVM) is proposed which prevents spatial and temporal artefacts and assesses the reconstructed video quality. This is validated using both the VQEG database and subjective assessment, and shows competitive performance on both non-synthetic and synthetic video content. Moreover, a local Rate-Quality Optimisation (RQO) strategy is developed based on AVM in order to make a decision between waveform coding and texture warping/synthesis. The proposed method has been integrated into an H.264 video coding framework with results offering significant bitrate savings for similar visual quality (based on both AVM and subjective scores).

Zhang, Fan; Bull, David R.

2011-09-01

42

Advanced LMMHD space power generation concept  

Microsoft Academic Search

Magnetohydrodynamic (MHD) power generation concept has been proposed and studied worldwide as one of the future power generation sources. An advanced one fluid two phase liquid metal (LM) MHD power generation concept was developed for space nuclear power generation design. The concept employs a nozzle to accelerate the liquid metal coolant to an acceptable velocity with Mach number greater than

Vincent Ho; Albert Wong; Kilyoo Kim; Vijay Dhir

1987-01-01

43

Auto-generation of professional background music for home-made videos  

Microsoft Academic Search

Techniques to auto-generate professional background music for the home-made video become highly demanded recently with the prevalence of digital video recorders and social media communities. An automated system for such purpose can significantly relieve users' burden of editing background music to accompany home-made video. However, the major obstacle lies in the fact that the assessment of the video-audio matching quality

Jiashi Feng; Bingbing Ni; Shuicheng Yan

2010-01-01

44

Effects of Narrative Script Advance Organizer Strategies Used to Introduce Video in the Foreign Language Classroom  

ERIC Educational Resources Information Center

The study compared participant comprehension of foreign language video content using two advance organizer (AO) strategies while exploring the benefits of AOs as proficiency increases. Participants were 50 advanced-beginner Spanish college students in three sections. Collaborative reading condition participants read a target language narrative…

Ambard, Philip D.; Ambard, Linda K.

2012-01-01

45

Advances in hydrocarbon generation theory  

Microsoft Academic Search

In recent years, great achievements have been made in exploring oil and gas from Jurassic coal measures in China. Plentiful oil and gas have been discovered in some coal basins of the Northwest of China. The exploration, development and studies of the oils from the coal greatly developed non-marine oil generation theory. In this paper, a new method by Qin

Difan Huang

1999-01-01

46

MASCOT: Metadata for Advanced Scalable Video Coding Tools.  

National Technical Information Service (NTIS)

The goal of the MASCOT project was to develop new video coding schemes and tools that provide both an increased coding efficiency as well as extended scalability features compared to technology that was available at the beginning of the project. Towards t...

A. Smolic B. Pesquet-Popescu C. Bernard H. J. A. M. Heijmans L. Torres M. Domanski P. Schelkens

2003-01-01

47

Advanced LMMHD space power generation concept  

NASA Astrophysics Data System (ADS)

Magnetohydrodynamic (MHD) power generation concept has been proposed and studied worldwide as one of the future power generation sources. An advanced one fluid two phase liquid metal (LM) MHD power generation concept was developed for space nuclear power generation design. The concept employs a nozzle to accelerate the liquid metal coolant to an acceptable velocity with Mach number greater than unity. Such nozzle and the MHD power generator replace the turbogenerator of a high temperature Rankine turboelectric cycle concept. As a result, the power generation system contains no movable parts. This provides high reliability, which is a very important factor in space application.

Ho, Vincent; Wong, Albert; Kim, Kilyoo; Dhir, Vijay

48

ADVANCED INTERNAL COMBUSTION ELECTRICAL GENERATOR  

Microsoft Academic Search

In this paper, research on hydrogen internal combustion engines is discussed. The objective of this project is to provide a high efficiency means of renewable hydrogen-based fuel utilization. The development of a high efficiency, low emissions electrical generator will lead to establishing a path for renewable hydrogen-based fuel utilization. A full-scale prototype will be produced in collaboration with industrial partners.

Peter Van Blarigan

2002-01-01

49

Advanced Feeder Design for Distributed Generation  

Microsoft Academic Search

Advanced distribution automation functions enable feeder design with high penetration levels of distributed generation, up to 75% of the feeder's peak load. An example design is presented, based on an IEEE radial test feeder. The distributed generation in this example requires use of directional elements in the feeder relay, along with adaptive settings for line voltage regulators and capacitor switching

T. M. Smith; B. A. Muschlitz; F. R. Goodman; T. E. McDermott

2007-01-01

50

Advanced piggyback water power generator  

SciTech Connect

A power generating system is described including: a central boat containing gearing and electric and/or power generation equipment, with a forward angled-back deflection screen and a rear non-angled deflection screen, with a smaller outrigger pontoon on each respective side of the central boat, with closed cell, waterproof, plastic foam filling in the central boat and pontoons, and with the bow of the respective outrigger pontoons angled so as to completely turn water away from, and to the outside of, the space and/or incoming water area between each such respective pontooon and the central boat. There are legs with cone shaped bottoms and with wheels attached, with the wheels extending slightly below the cone shaped bottoms; paddle wheels on each side of the central boat, between the central boat, and respective outrigger pontoons, with 90 degree spaced, flat, paddle blades, and with a solid, disk division vertically dividing each respective side paddle wheel in half and extending at right angles to, and from, the central axle, to the outside extreme end of the paddle blades, with each such half of the equally divided paddle wheel being constructed so that the 90 degree spaced paddle blades in one half are offset by 45 degrees from the 90 degree space paddle blades in the other half, and with the extreme ends of each such set of divided paddle wheels being enclosed via a similar solid.

Wiggs, B.R.

1988-02-16

51

Traffic Analysis and Video Quality Evaluation of Multiple Description Coded Video Services for Fourth Generation Wireless IP Networks  

Microsoft Academic Search

For the performance evaluation of future wireless communication systems, such as the fourth generation wireless networks, traffic traces of realistic services are needed. Multiple description coding (MDC) is gaining a lot of interest lately and is a viable solution to provide robust video services over single or multi hop wireless networks and MDC introduces more flexibility for network coding. Furthermore

Frank H. P. Fitzek; Ramjee Prasad; Marcos Katz

2005-01-01

52

Automatic Multilevel Summarizations Generation Based on Basic Semantic Unit for Sports Video  

Microsoft Academic Search

Sports video has been widely studied due to its tremendous commercial potentials. Despite encouraging results from various\\u000a specific sports games, it is almost impossible to extend a summarization system for a new sports game due to the lack of sports\\u000a video modeling. In this paper, we automatically generate multi-level summarizations for sports video based on Basic Semantic\\u000a Unit (BSU), which

Chen Jianyun; Zhao Xinyu; Duan Miyi; Wu Tingting; Lao Songyang

53

Fast stream joiner for next-generation interactive video  

Microsoft Academic Search

This paper presents a proposal of a new video provisioning scheme that enables numerous multiple users to access any view area with any desired resolution interactively. The basis is that the tile-based encoded multiple streams are joined dynamically and delivered based on the user's view-area position. This paper details a tile-based video coding scheme and a fast tile stream joiner

Naofumi Uchihara; Hiroyuki Kasai

2011-01-01

54

Teaching French Transformational Grammar by Means of Computer-Generated Video-Tapes.  

ERIC Educational Resources Information Center

This paper describes a pilot program in an integrated media presentation of foreign languages and the production and usage of seven computer-generated video tapes which demonstrate various aspects of French syntax. This instructional set could form the basis for CAI lessons in which the student is presented images identical to those on the video

Adler, Alfred; Thomas, Jean Jacques

55

User Generated Content: Web 2.0 Taking the Video Sector by Storm  

Microsoft Academic Search

This article examines the communities involved in the distribution and sharing of videos on the internet. Firstly, we study the practices connected with user generated content and describe the appearance of new players (YouTube, Dailymotion, Google Video, Zudeo, etc.) in the audiovisual landscape. We then discuss regulation of the new community model of digital content distribution before moving on to

David Mabillot

2007-01-01

56

I tube, you tube, everybody tubes: analyzing the world's largest user generated content video system  

Microsoft Academic Search

User Generated Content (UGC) is re-shaping the way people watch video and TV, with millions of video producers and consumers. In particular, UGC sites are creating new view- ing patterns and social interactions, empowering users to be more creative, and developing new business opportunities. To better understand the impact of UGC systems, we have analyzed YouTube, the world's largest UGC

Meeyoung Cha; Haewoon Kwak; Pablo Rodriguez; Yong-yeol Ahn; Sue Moon

2007-01-01

57

Efficient key frames selection for panorama generation from video  

NASA Astrophysics Data System (ADS)

A video sequence consists of several hundred frames, and as a result, creating a panoramic image from these frames is a very time-consuming process. Consecutive frames have large overlap areas that do not provide much information. Therefore, some key frames must be extracted for better performance. There are a number of methods for key-frame selection that match all frames in a video sequence. We present a novel and efficient method to select key frames from video for creating a large panoramic mosaic without matching all frames. Consecutive frames are transformed and projected onto the common mosaic surface and the position of each corner of the next frame is predicted with a distinct Kalman filter on this surface. The overlap area between each predicted frame and its previous key frame is used as the criterion to select the next key frame. This method uses video information to reduce features and align frames with repeated structures more accurately. We show that this approach is an efficient preprocessing step and substantially reduces the time required to construct panorama from a video sequence.

Fadaeieslam, Mohammad Javad; Soryani, Mohsen; Fathy, Mahmood

2011-04-01

58

Omnifocus video camera  

NASA Astrophysics Data System (ADS)

The omnifocus video camera takes videos, in which objects at different distances are all in focus in a single video display. The omnifocus video camera consists of an array of color video cameras combined with a unique distance mapping camera called the Divcam. The color video cameras are all aimed at the same scene, but each is focused at a different distance. The Divcam provides real-time distance information for every pixel in the scene. A pixel selection utility uses the distance information to select individual pixels from the multiple video outputs focused at different distances, in order to generate the final single video display that is everywhere in focus. This paper presents principle of operation, design consideration, detailed construction, and over all performance of the omnifocus video camera. The major emphasis of the paper is the proof of concept, but the prototype has been developed enough to demonstrate the superiority of this video camera over a conventional video camera. The resolution of the prototype is high, capturing even fine details such as fingerprints in the image. Just as the movie camera was a significant advance over the still camera, the omnifocus video camera represents a significant advance over all-focus cameras for still images.

Iizuka, Keigo

2011-04-01

59

Mars Advanced Studies: Next Generation Orbiters  

NASA Astrophysics Data System (ADS)

With the discovery of potentially large amounts of water near the Martian poles in form of permafrost close to the surface, the interests of the scientific community drive the advanced studies for mars exploration. The Mars Advanced Studies Office is seeking to build an integrated plan for mars exploration into the next decade. A series of advanced studies of potential candidate missions are being investigated. The studies cover mars orbiters, Landers, rovers, drills, sample return, and robotic outposts. The Next Generation Mars Orbiters are driven by the science community priorities. This has led to a series of concept missions to study the subsurface, the stratigraphy, the composition of the surface elements on mars, climatic changes, magnetic remnants over ancient terrain, and gravity experiments.

Deutsch, M.-J.

60

Improving side information generation using dynamic motion estimation for distributed video coding  

NASA Astrophysics Data System (ADS)

A new side information generation algorithm using dynamic motion estimation and post processing is proposed for improved distributed video coding. Multiple reference frames are employed for motion estimation at the side information frame generation block of the decoder. After motion estimation and compensation, post processing is applied to improve the hole and overlapped areas on the reconstructed side information frame. The proposed side information method contributes to improve the quality of reconstructed frames at the distributed video decoder. The average encoding time of the distributed video coding is around 15% of H.264 inter coding and 40% of H.264 intra coding. The proposed side information based distributed video coding demonstrates improved performance compared with that of H.264 intra coding.

Park, Insu; Capson, David

2012-02-01

61

Drinking activity analysis from fast food eating video using generative models  

Microsoft Academic Search

The drinking activity is a common event in a fast food eating process. In this paper, we present a study on drinking activity analysis from fast food eating video using generative models. We apply three different generative models, namely Conditional Random Field (CRF), Hidden-state Conditional Random Field (HCRF), and Latent-Dynamic Conditional Random Field (LDCRF), to characterize drinking activities in a

Qing Wang; Jie Yang

2009-01-01

62

Detection of slow-motion replay segments in sports video for highlights generation  

Microsoft Academic Search

We present a novel method for generating sports video summary highlights. Specifically, our method localizes semantically important events in sport programs by detecting slow motion replays of these events, and then generates highlights of these events at multiple levels. In our method, a hidden Markov model (HMM) is used to model slow motion replays, and an inference algorithm is introduced

H. Pan; P. van Beek; M. I. Sezan

2001-01-01

63

Cross and Square Command Symbol and Video Inset Generator for Television Display.  

National Technical Information Service (NTIS)

The report describes the design of a cross and square command symbol generator for display on a television screen. These command symbols are used in aircraft displays to present flight command data to the pilot. The design of a video inset generator is al...

C. J. Capriglione E. A. Karcher

1972-01-01

64

ADVANCED CO2 CYCLE POWER GENERATION  

SciTech Connect

Research is being conducted under United States Department of Energy (DOE) Contract DE-FC26-02NT41621 to develop a conceptual design and determine the performance characteristics of a new IGCC plant configuration that facilitates CO{sub 2} removal for sequestration. This new configuration will be designed to achieve CO{sub 2} sequestration without the need for water gas shifting and CO{sub 2} separation, and may eliminate the need for a separate sequestration compressor. This research introduces a novel concept of using CO{sub 2} as a working fluid for an advanced coal gasification based power generation system, where it generates power with high system efficiency while concentrating CO{sub 2} for sequestration. This project supports the DOE research objective of development of concepts for the capture and storage of CO{sub 2}.

A. Nehrozoglu

2004-01-01

65

ADVANCED CO2 CYCLE POWER GENERATION  

SciTech Connect

Research is being conducted under United States Department of Energy (DOE) Contract DE-FC26-02NT41621 to develop a conceptual design and determine the performance characteristics of a new IGCC plant configuration that facilitates CO{sub 2} removal for sequestration. This new configuration will be designed to achieve CO{sub 2} sequestration without the need for water gas shifting and CO{sub 2} separation, and may eliminate the need for a separate sequestration compressor. This research introduces a novel concept of using CO{sub 2} as a working fluid for an advanced coal gasification based power generation system, where it generates power with high system efficiency while concentrating CO{sub 2} for sequestration. This project supports the DOE research objective of development of concepts for the capture and storage of CO{sub 2}.

A. Nehrozoglu

2003-10-01

66

Advanced high-power generator research program  

NASA Astrophysics Data System (ADS)

This report summarizes work accomplished in phase 3 of the advanced high-power generator research and development program, F33615-76-C-2168, part of an Air Force exploratory development program for high-power airborne electrical power supply technology. The program includes the design of a 5-mw generator for use in a 10-mw power supply and fabrication and testing of the generator rotor. The five program phases are: phase 1, design; phase 2, critical component testing; phase 3, rotor fabrication; phase 4, rotor testing; and phase 5, test plan preparation. The overall objective of the exploratory development program is to demonstrate through prototype hardware testing, that an ultralightweight (0.1 1b/kw), nonsuperconducting generator can be successfully built in the 1-to-10-mw power range. The program was terminated at the end of phase 3. This report covers the fabrication of a samarium-cobalt permanent magnet rotor which included: HIP-(hot isostatic pressure) bonding, heat treating, machining, magnet assembly, sleeve installation, and spinning.

Johnson, Tracy E.

1986-05-01

67

Computer-generated holograms of a real three-dimensional object based on stereoscopic video images.  

PubMed

A novel method of using stereoscopic video images to synthesize the computer-generated hologram (CGH) patterns of a real 3D object is proposed. Stereoscopic video images of a real 3D object are captured by a 3D camera system. Disparity maps between the captured stereo image pairs are estimated and from these estimated maps the depth data for each pixel of the object can be extracted on a frame basis. By using these depth data and original color images, hologram patterns of a real object can be computationally generated. In experiments, stereoscopic video images of a real 3D object, a wooden rhinoceros doll, are captured by using the Wasol 3D adapter system and its depth data are extracted from them. Then, CGH patterns of 1280 pixels x 1024 pixels are generated with these depth-annotated images of the wooden rhinoceros doll, and the CGH patterns are experimentally displayed via a holographic display system. PMID:16855665

Kim, Seung-Cheol; Hwang, Dong-Choon; Lee, Dong-Hwi; Kim, Eun-Soo

2006-08-01

68

Computer-generated holograms of a real three-dimensional object based on stereoscopic video images  

NASA Astrophysics Data System (ADS)

A novel method of using stereoscopic video images to synthesize the computer-generated hologram (CGH) patterns of a real 3D object is proposed. Stereoscopic video images of a real 3D object are captured by a 3D camera system. Disparity maps between the captured stereo image pairs are estimated and from these estimated maps the depth data for each pixel of the object can be extracted on a frame basis. By using these depth data and original color images, hologram patterns of a real object can be computationally generated. In experiments, stereoscopic video images of a real 3D object, a wooden rhinoceros doll, are captured by using the Wasol 3D adapter system and its depth data are extracted from them. Then, CGH patterns of 1280 pixels × 1024 pixels are generated with these depth-annotated images of the wooden rhinoceros doll, and the CGH patterns are experimentally displayed via a holographic display system.

Kim, Seung-Cheol; Hwang, Dong-Choon; Lee, Dong-Hwi; Kim, Eun-Soo

2006-08-01

69

Effects of Generative Video on Students' Scientific Problem Posing. Draft.  

ERIC Educational Resources Information Center

A central premise of the discovery-learning and progressive education movements was that the child's own questions are the most appropriate starting point for instruction. Recent advances present new opportunities for discovery-oriented learning. This project has been attempting to create a classroom environment which affords students the…

Hickey, Daniel T.; Petrosino, Anthony

70

Video Golf.  

National Technical Information Service (NTIS)

George Nauck of ENCORE invented and markets the Advanced Range Performance (ARPM) Video Golf System for measuring the result of a golf swing. After Nauck requested their assistance, Marshall Space Flight Center scientists suggested video and image process...

1995-01-01

71

Advanced Eddy current NDE steam generator tubing.  

SciTech Connect

As part of a multifaceted project on steam generator integrity funded by the U.S. Nuclear Regulatory Commission, Argonne National Laboratory is carrying out research on the reliability of nondestructive evaluation (NDE). A particular area of interest is the impact of advanced eddy current (EC) NDE technology. This paper presents an overview of work that supports this effort in the areas of numerical electromagnetic (EM) modeling, data analysis, signal processing, and visualization of EC inspection results. Finite-element modeling has been utilized to study conventional and emerging EC probe designs. This research is aimed at determining probe responses to flaw morphologies of current interest. Application of signal processing and automated data analysis algorithms has also been addressed. Efforts have focused on assessment of frequency and spatial domain filters and implementation of more effective data analysis and display methods. Data analysis studies have dealt with implementation of linear and nonlinear multivariate models to relate EC inspection parameters to steam generator tubing defect size and structural integrity. Various signal enhancement and visualization schemes are also being evaluated and will serve as integral parts of computer-aided data analysis algorithms. Results from this research will ultimately be substantiated through testing on laboratory-grown and in-service-degraded tubes.

Bakhtiari, S.

1999-03-29

72

Building Next Generation Video Game Collections in Academic Libraries  

ERIC Educational Resources Information Center

|Most academic libraries do not yet have gaming collections, let alone gaming services and facilities that support the unique and growing teaching and research needs of campus environments. Academic libraries in particular need to start thinking about developing the next generation of gaming collections and services. This article examines the…

Laskowski, Mary; Ward, David

2009-01-01

73

Segmentation of video sequences for partition tree generation  

Microsoft Academic Search

\\u000a Abstract  In this paper we propose a segmentation structure to generate a partition tree with multiple partition proposals. These multiple\\u000a partitions are obtained for every image in a hierarchical way, from the coarsest one to the finest one. Time evolution of\\u000a the regions is defined through a projection step which relates the previous coded partition with the current partition tree.\\u000a Finer

Montse PardÀs; Philippe Salembier

1997-01-01

74

Integrated homeland security system with passive thermal imaging and advanced video analytics  

NASA Astrophysics Data System (ADS)

A complete detection, management, and control security system is absolutely essential to preempting criminal and terrorist assaults on key assets and critical infrastructure. According to Tom Ridge, former Secretary of the US Department of Homeland Security, "Voluntary efforts alone are not sufficient to provide the level of assurance Americans deserve and they must take steps to improve security." Further, it is expected that Congress will mandate private sector investment of over $20 billion in infrastructure protection between 2007 and 2015, which is incremental to funds currently being allocated to key sites by the department of Homeland Security. Nearly 500,000 individual sites have been identified by the US Department of Homeland Security as critical infrastructure sites that would suffer severe and extensive damage if a security breach should occur. In fact, one major breach in any of 7,000 critical infrastructure facilities threatens more than 10,000 people. And one major breach in any of 123 facilities--identified as "most critical" among the 500,000--threatens more than 1,000,000 people. Current visible, nightvision or near infrared imaging technology alone has limited foul-weather viewing capability, poor nighttime performance, and limited nighttime range. And many systems today yield excessive false alarms, are managed by fatigued operators, are unable to manage the voluminous data captured, or lack the ability to pinpoint where an intrusion occurred. In our 2006 paper, "Critical Infrastructure Security Confidence Through Automated Thermal Imaging", we showed how a highly effective security solution can be developed by integrating what are now available "next-generation technologies" which include: Thermal imaging for the highly effective detection of intruders in the dark of night and in challenging weather conditions at the sensor imaging level - we refer to this as the passive thermal sensor level detection building block Automated software detection for creating initial alerts - we refer to this as software level detection, the next level building block Immersive 3D visual assessment for situational awareness and to manage the reaction process - we refer to this as automated intelligent situational awareness, a third building block Wide area command and control capabilities to allow control from a remote location - we refer to this as the management and process control building block integrating together the lower level building elements. In addition, this paper describes three live installations of complete, total systems that incorporate visible and thermal cameras as well as advanced video analytics. Discussion of both system elements and design is extensive.

Francisco, Glen; Tillman, Jennifer; Hanna, Keith; Heubusch, Jeff; Ayers, Robert

2007-05-01

75

Advanced Metrology for Next Generation Transistors  

Microsoft Academic Search

This paper overviews advances in optical and electrical measurements for advanced transistor materials and processes. Optical\\u000a measurements such as ellipsometry require advances in both optical methods and optical measurement technology [1,2]. Although\\u000a laboratory based optical measurements are capable of measuring into the VUV, the availability of in-line systems is a recent\\u000a development. The Cody Lorentz model is used to describe

Alain C. Diebold

76

Advanced digital techniques for high bandwidth chirp generation  

NASA Astrophysics Data System (ADS)

A brief summary of important digital chirp generation (DCG) techniques is provided, with emphasis on two complementary methods - systolic and parallel digital chirp generation. These techniques provide an order of magnitude improvement in performance when compared with conventional digital chirp generation techniques implemented on the same technology. When implemented on the same technology, the systolic DCG yields a threefold improvement in performance. If used in conjunction with the parallel DCG, an order of magnitude performance is readily achievable. Combining the systolic DCG with the parallel method and using the chirp generator FPGA devices with a video digital to analog converter enables sample rates of 160 MHZ to be produced.

Parkes, S. M.

77

Advanced generating technologies - Motivation and selection process in electric utilities  

NASA Astrophysics Data System (ADS)

Electric utilities are constantly seeking advanced methods for generating electricity to meet the future demand. The primary motivation for the development of advanced technologies is to generate electricity with minimum damage to the environment and with resources that are abundant. The utility planner evaluates the role of these technologies in the future system considering both quantifiable and nonquantifiable benefits and risks involved.

Bhavaraju, Murty P.

1993-03-01

78

Generation of an Omnidirectional Video without Invisible Areas Using Image Inpainting  

Microsoft Academic Search

\\u000a Omnidirectional cameras usually cannot capture the entire direction of view due to a blind side. Thus, such an invisible part\\u000a decreases realistic sensation in a telepresence system. In this study, an omnidirectional video without invisible areas is\\u000a generated by filling in the missing region using an image inpainting technique for highly realistic sensation in telepresence.\\u000a This paper proposes a new

Norihiko Kawai; Kotaro Machikita; Tomokazu Sato; Naokazu Yokoya

2009-01-01

79

Moving objects extraction method in H.264/advanced video coding bit stream of a complex scene  

NASA Astrophysics Data System (ADS)

For the purpose of extracting moving objects from H.264/advanced video coding (AVC) bit stream of a complex scene, an algorithm based on maximum a posteriori Markov random field (MRF) framework to extract moving objects directly from H.264 compressed video is proposed in this paper. It mainly involves encoding information of motion vectors (MVs) and block partition modes in H.264/AVC bit stream and utilizes temporal continuity and spatial consistency of moving object's pieces. First, it retrieves MVs and block partition modes of identical 4×4 pixel blocks in P frames and establishes Gaussian mixture model (GMM) of the phase of MVs as a reference background, and then creates MRF model based on MVs, block partition modes, the GMM of the background, spatial, and temporal consistency. The moving objects are retrieved by solving the MRF model. The experimental results show that it can perform robustly in a complex environment and the precision and recall have been improved over the existing algorithm.

Mingsheng, Chen; Mingxin, Qin; Guangming, Liang; Jixiang, Sun; Xu, Ning

2013-08-01

80

An advanced threshold-extension tracking filter for satellite video reception  

NASA Astrophysics Data System (ADS)

Developments related to frequency-modulated television transmission via satellite repeaters have hade large commercial applications in connection with earth terminals for satellite TV reception. Difficulties concerning the assurance of a satisfactory quality of video and audio reception are related to the threshold phenomenon, which exists in any realizable FM receiver. Its onset cannot be eliminated, but it can be delayed with a more sophisticated 'threshold-extension demodulator' (TED). For given performance criteria, the best threshold extension available usually results in the lowest overall earth terminal cost. Suitable threshold-extension techniques are discussed, taking into account the employment of open-loop and closed-loop tracking filters. A description is provided of a TED which represents a new closed-loop tracking filter invention. Attention is given to advanced tracking filter implementation, performance results, and projected and potential future applications.

Rogers, W. M.

81

Advanced Training Techniques Using Computer Generated Imagery.  

National Technical Information Service (NTIS)

The objectives of this study were to generate new concepts in aircrew training methods that take advantage of the flexibility of computer generated imagery, to demonstrate examples, and to perform exploratory testing of these examples. The purposes of the...

D. Coblitz M. Verstegen D. Hauck

1983-01-01

82

Advanced stellar sensors - A new generation  

Microsoft Academic Search

The evolution of charge transfer device (CTD) detector technology for use as star trackers and attitude transfer systems is crucial to the development of advanced stellar sensors, as CTD's offer a predicted pointing accuracy better than one part in 50,000. CTD design includes silicon as the photosensitive material, which provides a broad spectral response. In addition, CTD near-infrared sensitivity enhances

L. W. Cassidy

1982-01-01

83

Advanced automatic test pattern generation and redundancy identification techniques  

Microsoft Academic Search

Based on the sophisticated strategies used in the automatic test pattern generation system SOCRATES, the authors present several concepts aiming at a further improvement and acceleration of the deterministic test pattern generation and redundancy identification process. In particular, they describe an improved implication procedure and an improved unique sensitization procedure. Both procedures significantly advance the deterministic test pattern generation and

Michael H. Schulz; Elisabeth Auth

1988-01-01

84

Video Games  

Microsoft Academic Search

In the past few years, the video game explosion has permeated our everyday culture, involving in particular the younger generation. Video games once found only in arcades are now being manufactured for home use. This study seeks to analyze the value of video games as an activity program for geriatric populations in skilled nursing home facilities. Areas examined include resident

Betty Schueren

1986-01-01

85

Advanced Training Techniques Using Computer Generated Imagery.  

National Technical Information Service (NTIS)

Aircraft simulator systems have been primarily designed as substitutes for actual aircraft. The computer generated imagery of these systems provides the flexibility to enhance training in ways that cannot be done in the real world. The thrust of this rese...

D. Hauck D. Coblitz

1981-01-01

86

Advanced instrumentation for next-generation aerospace propulsion control systems  

Microsoft Academic Search

New control concepts for the next generation of advanced air-breathing and rocket engines and hypersonic combined-cycle propulsion systems are analyzed. The analysis provides a database on the instrumentation technologies for advanced control systems and cross matches the available technologies for each type of engine to the control needs and applications of the other two types of engines. Measurement technologies that

S. Barkhoudarian; G. S. Cross; Carl F. Lorenzo

1993-01-01

87

Recent advances in RF power generation  

SciTech Connect

This paper is a review of the progress and methods used in RF generation for particle accelerators. The frequencies of interest are from a few megahertz to 100 GHz, and the powers are for super linear collider applications, but in this case the pulses are short, generally below 1 {mu}s. The very high-power, short-pulse generators are only lightly reviewed here, and for more details the reader should follow the specialized references. Different RF generators excel over various parts of the frequency spectrum. Below 100 MHz solid-state devices and gridded tubes prevail, while the region between 400 MHz and 3 GHz, the cyclotron-resonant devices predominate, and above 250 GHz, Free-Electron Lasers and ubitrons are the most powerful generators. The emphasis for this review is on microwave generation at frequencies below 20 GHz, so the cyclotron-resonant devices are only partially reviewed, while the progress on free-electron laser and ubitrons is not reviewed in this paper. 39 refs., 4 figs.

Tallerico, P.J.

1990-01-01

88

Fast thumbnail generation for MPEG video by using a multiple-symbol lookup table  

NASA Astrophysics Data System (ADS)

A novel method using a multiple-symbol lookup table (mLUT) is proposed to fast-skip the ac coefficients (codewords) not needed to construct a dc image from MPEG-1/2 video streams, resulting in fast thumbnail generation. For MPEG-1/2 video streams, thumbnail generation schemes usually extract dc images directly in a compressed domain where a dc image is constructed using a dc coefficient and a few ac coefficients from among the discrete cosine transform (DCT) coefficients. However, it is required that all codewords for DCT coefficients should be fully decoded whether they are needed or not in generating a dc image, since the bit length of a codeword coded with variable-length coding (VLC) cannot be determined until the previous VLC codeword has been decoded. Thus, a method using a mLUT designed for fast-skipping unnecessary DCT coefficients to construct a dc image is proposed, resulting in a significantly reduced number of table lookups (LUT count) for variable-length decoding of codewords. Experimental results show that the proposed method significantly improves the performance by reducing the LUT count by 50%.

Kim, Myounghoon; Lee, Hoonjae; Yoon, Ja-Cheon; Kim, Hyeokman; Sull, Sanghoon

2009-03-01

89

Parallel adaptive tetrahedral mesh generation by the advancing front technique  

Microsoft Academic Search

A parallel adaptive tetrahedral mesh generation program using the advancing front method is described. The problem domain is initially defined by a course background mesh of tetrahedral elements which forms the input for finite element analysis and from which adaptive parameters are calculated. Parallel adaptive mesh generation is then carried out by dividing the background mesh into subdomains and refining

J. K. Wilson; B. H. V. Topping

1998-01-01

90

Advanced target concepts for RIB generation  

SciTech Connect

In this report, we describe highly permeable composite target matrices that simultaneously incorporate the short diffusion lengths, high permeabilities, and heat removal properties necessary to effect maximum diffusion release rates of short-lived, radioactive species as required for efficient radioactive ion beam (RIB) generation in nuclear physics and astrophysics research programs. The RIB species are generated by either fusion or fission nuclear reactions between high energy {sup 1}H, {sup 2}H, {sup 3}He or {sup 4}He ion beams and specific nuclei which make up the target material. The target materials may be used directly as small diameter particulates coated or uncoated with Re or Ir to minimize adsorption following diffusion release and eliminate sintering of the particulates at elevated temperatures; plated onto both sides of thin disks of C, for example; or plated, in thin layers, onto low density, Ir or Re coated carbon-bonded-carbon-fiber (CBCF) or reticulated-carbon-fiber (RCF) to form sponge-like composite target matrices; or in other cases, where applicable, the target material of interest can be grown in crystalline fibrous form and fabricated in woven mats of the target material to form a highly permeable fibrous structure.

Alton, G.D.

1996-12-01

91

Creating next generation blended learning environments using mixed reality, Video Games and Simulations  

Microsoft Academic Search

Summary  The goal of this article has been to discuss next generation learning environments and next generation training technologies\\u000a as well as the learning and design challenges faced in using these. Specifically, we discuss theoretical and design principles\\u000a of constructivist learning environments and how advanced technologies can potentially support meeting these principles as\\u000a well as the challenges they may pose to

Sonny E. Kirkley; Jamie R. Kirkley

2004-01-01

92

KAN NA! Authentic Chinese Video. Lessons for Intermediate to Advanced Self-Study. [CD-ROM].  

ERIC Educational Resources Information Center

This compact disc (CD) offers 20 lessons based on selected Chinese language video clips. Filmed on location in Beijing, these naturalistic video clips consist mainly of unrehearsed interviews with ordinary people. The learner is lead through a series of activities aiding comprehension and learning that sharpen communication strategies and…

Fleming, Stephen; Hiple, David; Ning, Cynthia

93

Exploiting Topic Thread Structures in a News Video Archive for the Semi-Automatic Generation of Video Summaries  

Microsoft Academic Search

We proposeamethodthatsemi-automaticallycomposesvideo storiesbyconnectingindividualstoriesina newsvideoarchive alongatopic-basedsemanticstructure,namelythetopicthread. We introduce the methodsto realize the composition, namely, story segmentation, topic threading and clustering. We then evaluate the proposed approach based on preliminary tests. Since the thread structure reflects the development of topics in the real-world, we believe that the composed news video story should be effective for the user to gain a deeper under-

Ichiro Ide; Hiroshi Mo; Norio Katayama; Shin'ichi Satoh

2006-01-01

94

Generating highly realistic 3D animation video with depth-of-field and motion blur effects  

NASA Astrophysics Data System (ADS)

A computationally efficient algorithm is described for generating shift-variant defocus and motion blur effects for animation video. This algorithm precisely models rigid body motion of 3-D objects which includes arbitrary translational and rotational motion. Camera parameters such as aperture diameter, focal length, and the location of image detector are used to calculate the blur circle radius of point spread functions (PSFs) modeled by Gaussian and Cylindrical functions. In addition, a novel and simple method similar to image inpainting is described for filling missing pixels that arise due to object motion, round-off errors, interpolation or changes in magnification. Performance of the algorithms are demonstrated on a set of 3D shapes such as sphere, cylinder, cone, etc. The software tool developed in this research is also useful in computer vision and image processing research. It can be used for simulating test data with known ground truth in the testing and evaluation of depth-from-defocus and image/video de-blurring algorithms.

Sathyanarayana, Karthik; Subbarao, Muralidhara

2010-08-01

95

Investigation of advancing front method for generating unstructured grid  

Microsoft Academic Search

The advancing front technique is used to generate an unstructured grid about simple aerodynamic geometries. Unstructured grids are generated using VGRID2D and VGRID3D software. Specific problems considered are a NACA 0012 airfoil, a bi-plane consisting of two NACA 0012 airfoil, a four element airfoil in its landing configuration, and an ONERA M6 wing. Inviscid time dependent solutions are computed on

A. M. Thomas; S. N. Tiwari

1992-01-01

96

Advances in understanding cancer genomes through second-generation sequencing  

Microsoft Academic Search

Cancers are caused by the accumulation of genomic alterations. Therefore, analyses of cancer genome sequences and structures provide insights for understanding cancer biology, diagnosis and therapy. The application of second-generation DNA sequencing technologies (also known as next-generation sequencing) — through whole-genome, whole-exome and whole-transcriptome approaches — is allowing substantial advances in cancer genomics. These methods are facilitating an increase in

Stacey Gabriel; Gad Getz; Matthew Meyerson

2010-01-01

97

Second Generation Advanced Reburning for High Efficiency NOx Control  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR) which has the potential to achieve 90+ NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction. The tenth reporting period in Phase II (January 1-March 31, 2000) included proof-of concept tests in the 10 x 10{sup 6} Btu/hr Tower Furnace. Several variants of Second Generation Advanced Reburning (SGAR) were studied, including AR-Lean, AR-Rich, reburning + SNCR, and Multiple Injection Advanced Reburning (MIAR). Tests demonstrated that the SGAR performance was the most effective under MIAR conditions achieving maximum overall NO{sub x} reduction of 96%.

Vladimir M. Zamansky; Pete M. Maly

2000-03-31

98

New-generation short-haul airliner uses advanced technology  

SciTech Connect

The Saab-Fairchild 340 is a twin-engined, low-wing, 34-passenger pressurized turboprop airplane. It incorporates a modern fuel efficient propulsion system and a new advanced technology wing, resulting in a new-generation airliner for the short-haul market.

Sanator, R.J.; Honczarenko, G.

1982-06-01

99

Carpet Specifiers Guide. Ultron, Advanced Generation Nylon Carpet Fiber.  

ERIC Educational Resources Information Center

|The purpose of this guide is to assist specifiers in properly specifying carpet made of Monsanto Ultron advanced generation nylon fiber. The guide describes a variety of conditions that should be considered in arriving at the proper selection and provides reference information and data, ranging from varying regulatory requirements, performance…

Monsanto Textiles Co., Atlanta, GA.

100

Carpet Specifiers Guide. Ultron, Advanced Generation Nylon Carpet Fiber.  

ERIC Educational Resources Information Center

The purpose of this guide is to assist specifiers in properly specifying carpet made of Monsanto Ultron advanced generation nylon fiber. The guide describes a variety of conditions that should be considered in arriving at the proper selection and provides reference information and data, ranging from varying regulatory requirements, performance and…

Monsanto Textiles Co., Atlanta, GA.

101

Artificial Video for Video Analysis  

NASA Astrophysics Data System (ADS)

This paper discusses the use of video analysis software and computer-generated animations for student activities. The use of artificial video affords the opportunity for students to study phenomena for which a real video may not be easy or even possible to procure, using analysis software with which the students are already familiar. We will present three example activities: two lab activity ``add ons'' as well as a complete virtual laboratory exercise.

Gallis, Michael R.

2010-01-01

102

Using Large CPLDs and FPGAs for Prototyping and VGA Video Display Generation in Computer Architecture Design Laboratories  

Microsoft Academic Search

This paper describes current work utilizing a rapid prototyping approach to simulate, synthesize, and implement prototype digital system and computer architectures using PCs with student versions of commercial VHDL based CAD tools and a low cost board with a large CPLD or FPGA. VGA video output generated directly by the CPLD chip is used to display graphics or textual data

James O. Hamblen

1998-01-01

103

The Effects of Technological Advancement and Violent Content in Video Games on Players? Feelings of Presence, Involvement, Physiological Arousal, and Aggression  

Microsoft Academic Search

The possible impact of technological advancement on video games' effects—particularly in the case of violent games—has often been discussed but has not been thoroughly explored by empirical research. The present investigation employed a 2 3 2 between- subjects factorial experiment to examine the interplay of technological advancement and violence by exposing participants (N = 120) to either a newer or

James D. Ivory; Sriram Kalyanaraman

2007-01-01

104

The Effect of Advances in Video Game Technology and Content on Aggressive Cognitions, Hostility, and Heart Rate  

Microsoft Academic Search

Two studies were conducted that tested the moderating role of video game graphics quality in the relationship between video game content and aggression-related variables. In both studies, participants played either a violent or nonviolent video game on one of three video game systems with differing technological computing power (which contributes to the realism depicted in these video games). In Study

Christopher Barlett; Christopher D. Rodeheffer; Ross Baldassaro; Michael P. Hinkin; Richard J. Harris

2008-01-01

105

Address Generation for FPGA RAMs for Efficient Implementation of Real-Time Video Processing Systems  

Microsoft Academic Search

FPGA offers the potential of being a reliable, and high-performance reconfigurable platform for the implementation of real-time video processing systems. To utilize the full processing power of FPGA for video processing applications, optimization of memory accesses and the implementation of memory architecture are important issues. This paper presents two approaches, base pointer approach and distributed pointer approach, to implement accesses

Najeem Lawal; Benny Thörnberg; Mattias O'nils

2005-01-01

106

Making It Real: Enhancing Curriculum Delivery Through the Use of Student-Generated Training Videos  

Microsoft Academic Search

This article describes and critiques the creation of a student-centered, reality-based training video undertaken by students and faculty from the departments of social work and visual arts at a northeastern university. There are several key and innovative aspects to this video. It is a collaboration between faculty and students of the schools of social work and the arts: social work

Caroline Rosenthal Gelman; Carol Tosone

2006-01-01

107

YouTube as a Qualitative Research Asset: Reviewing User Generated Videos as Learning Resources  

ERIC Educational Resources Information Center

|YouTube, the video hosting service, offers students, teachers, and practitioners of qualitative researchers a unique reservoir of video clips introducing basic qualitative research concepts, sharing qualitative data from interviews and field observations, and presenting completed research studies. This web-based site also affords qualitative…

Chenail, Ronald J.

2011-01-01

108

Bringing Evolution to a Technological Generation: A Case Study with the Video Game SPORE  

ERIC Educational Resources Information Center

|The video game SPORE was found to hold characteristics that stimulate higher-order thinking even though it rated poorly for accurate science. Interested in evaluating whether a scientifically inaccurate video game could be used effectively, we exposed students to SPORE during an evolution course. Students that played the game reported that they…

Poli, DorothyBelle; Berenotto, Christopher; Blankenship, Sara; Piatkowski, Bryan; Bader, Geoffrey A.; Poore, Mark

2012-01-01

109

Methodologies for generating HTTP streaming video workloads to evaluate web server performance  

Microsoft Academic Search

Recent increases in live and on-demand video streaming have dramatically changed the Internet landscape. In North America, Netflix alone accounts for 28% of all and 33% of peak downstream Internet traffic on fixed access links, with further rapid growth expected [26]. This increase in streaming traffic coincides with the steady adoption of HTTP for use in video streaming. Many streaming

Jim Summers; Tim Brecht; Derek Eager; Bernard Wong

2012-01-01

110

BIOMASS GASIFICATION AND POWER GENERATION USING ADVANCED GAS TURBINE SYSTEMS  

SciTech Connect

A multidisciplined team led by the United Technologies Research Center (UTRC) and consisting of Pratt & Whitney Power Systems (PWPS), the University of North Dakota Energy & Environmental Research Center (EERC), KraftWork Systems, Inc. (kWS), and the Connecticut Resource Recovery Authority (CRRA) has evaluated a variety of gasified biomass fuels, integrated into advanced gas turbine-based power systems. The team has concluded that a biomass integrated gasification combined-cycle (BIGCC) plant with an overall integrated system efficiency of 45% (HHV) at emission levels of less than half of New Source Performance Standards (NSPS) is technically and economically feasible. The higher process efficiency in itself reduces consumption of premium fuels currently used for power generation including those from foreign sources. In addition, the advanced gasification process can be used to generate fuels and chemicals, such as low-cost hydrogen and syngas for chemical synthesis, as well as baseload power. The conceptual design of the plant consists of an air-blown circulating fluidized-bed Advanced Transport Gasifier and a PWPS FT8 TwinPac{trademark} aeroderivative gas turbine operated in combined cycle to produce {approx}80 MWe. This system uses advanced technology commercial products in combination with components in advanced development or demonstration stages, thereby maximizing the opportunity for early implementation. The biofueled power system was found to have a levelized cost of electricity competitive with other new power system alternatives including larger scale natural gas combined cycles. The key elements are: (1) An Advanced Transport Gasifier (ATG) circulating fluid-bed gasifier having wide fuel flexibility and high gasification efficiency; (2) An FT8 TwinPac{trademark}-based combined cycle of approximately 80 MWe; (3) Sustainable biomass primary fuel source at low cost and potentially widespread availability-refuse-derived fuel (RDF); (4) An overall integrated system that exceeds the U.S. Department of Energy (DOE) goal of 40% (HHV) efficiency at emission levels well below the DOE suggested limits; and (5) An advanced biofueled power system whose levelized cost of electricity can be competitive with other new power system alternatives.

David Liscinsky

2002-10-20

111

Enhanced Human Body Fall Detection Utilizing Advanced Classification of Video and Motion Perceptual Components  

Microsoft Academic Search

The monitoring of human physiological data, in both normal and abnormal situations of activity, is interesting for the purpose\\u000a of emergency event detection, especially in the case of elderly people living on their own. Several techniques have been proposed\\u000a for identifying such distress situations using either motion, audio or video data from the monitored subject and the surrounding\\u000a environment. This

Charalampos Doukas; Ilias Maglogiannis

2009-01-01

112

Advanced surveillance systems: combining video and thermal imagery for pedestrian detection  

NASA Astrophysics Data System (ADS)

In the current context of increased surveillance and security, more sophisticated surveillance systems are needed. One idea relies on the use of pairs of video (visible spectrum) and thermal infrared (IR) cameras located around premises of interest. To automate the system, a dedicated image processing approach is required, which is described in the paper. The first step in the proposed study is to collect a database of known scenarios both indoor and outdoor with a few pedestrians. These image sequences (video and TIR) are synchronized, geometrically corrected and temperature calibrated. The next step is to develop a segmentation strategy to extract the regions of interest (ROI) corresponding to pedestrians in the images. The retained strategy exploits the motion in the sequences. Next, the ROIs are grouped from image to image separately for both video and TIR sequences before a fusion algorithm proceeds to track and detect humans. This insures a more robust performance. Finally, specific criteria of size and temperature relevant to humans are introduced as well. Results are presented for a few typical situations.

Torresan, Helene; Turgeon, Benoit; Ibarra-Castanedo, Clemente; Hebert, Patrick; Maldague, Xavier P.

2004-04-01

113

SECOND GENERATION ADVANCED REBURNING FOR HIGH EFFICIENCY NOx CONTROL  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning which has the potential to achieve 90+ NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction. The sixth reporting period in Phase II (January 1-March 31, 1999) included experimental activities and combined chemistry-mixing modeling on advanced gas reburning. The goal of combustion tests was to continue the work on identifying prospective promoters for the advanced reburning process. Tests were conducted in Controlled Temperature Tower (CTT) and Boiler Simulator Facility (BSF). Tests showed that some promoters significantly affect the reburning process when co-injected with NH{sub 3} . The promoters injected into reburning zone without NH{sub 3} in the amount 30 ppm do not significantly affect the reburning process. The modeling effort was focused on the description of Na effect on CO emissions in advanced reburning. Increase in CO concentration in flue gas upon Na injection results from inhibition of CO oxidation by Na species in the burnout zone.

Peter M. Maly; Vitali V. Lissianski; Vladimir M. Zamansky

1999-04-29

114

SECOND GENERATION ADVANCED REBURNING FOR HIGH EFFICIENCY NOx CONTROL  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning which has the potential to achieve 90+ NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction. The eighth reporting period in Phase II (July 1--September 26, 1999) included combined chemistry-mixing modeling on advanced gas reburning and experimental activities in support of modeling. Modeling efforts focused on description of AR-Lean--combination of basic reburning and co-injection of N-agent with overfire air. Modeling suggests that efficiency of AR-Lean strongly depends on the amount of the reburning fuel, temperature of flue gas at the point of OFA/N-agent injection, and evaporation time of N-agent. The model describes the most important features of AR-Lean and can be used for AR-Lean optimization.

Vladimir M. Zamansky; Peter M. Maly; Vitali V. Lissianski

1999-10-29

115

GRC Supporting Technology for NASA's Advanced Stirling Radioisotope Generator (ASRG)  

NASA Astrophysics Data System (ADS)

From 1999-2006, the Glenn Research Center (GRC) supported a NASA project to develop a high-efficiency, nominal 110-We Stirling Radioisotope Generator (SRG110) for potential use on NASA missions. Lockheed Martin was selected as the System Integration Contractor for the SRG110, under contract to the Department of Energy (DOE). The potential applications included deep space missions, and Mars rovers. The project was redirected in 2006 to make use of the Advanced Stirling Convertor (ASC) that was being developed by Sunpower, Inc. under contract to GRC, which would reduce the mass of the generator and increase the power output. This change would approximately double the specific power and result in the Advanced Stirling Radioisotope Generator (ASRG). The SRG110 supporting technology effort at GRC was replanned to support the integration of the Sunpower convertor and the ASRG. This paper describes the ASRG supporting technology effort at GRC and provides details of the contributions in some of the key areas. The GRC tasks include convertor extended-operation testing in air and in thermal vacuum environments, heater head life assessment, materials studies, permanent magnet characterization and aging tests, structural dynamics testing, electromagnetic interference and electromagnetic compatibility characterization, evaluation of organic materials, reliability studies, and analysis to support controller development.

Schreiber, Jeffrey G.; Thieme, Lanny G.

2008-01-01

116

Low-Rank Coal and Advanced Technologies for Power Generation  

Microsoft Academic Search

Fluidised-bed based advanced power generation technologies offer higher efficiencies than conventional pulverised fuel fired\\u000a power plants and better prospects in reducing ash-related problems associated with low-rank coal in such plants. However,\\u000a bed material agglomeration and bed defluidisation present significant operational difficulties for the utilisation of the\\u000a low-rank coal in fluidised-bed processes. Alkali and alkaline-earth elements and sulphur compounds, often found

Dong-ke Zhang’; Peter J. Jackson; Hari B. Vuthaluru

117

Advanced ceramic materials for next-generation nuclear applications  

NASA Astrophysics Data System (ADS)

The nuclear industry is at the eye of a 'perfect storm' with fuel oil and natural gas prices near record highs, worldwide energy demands increasing at an alarming rate, and increased concerns about greenhouse gas (GHG) emissions that have caused many to look negatively at long-term use of fossil fuels. This convergence of factors has led to a growing interest in revitalization of the nuclear power industry within the United States and across the globe. Many are surprised to learn that nuclear power provides approximately 20% of the electrical power in the US and approximately 16% of the world-wide electric power. With the above factors in mind, world-wide over 130 new reactor projects are being considered with approximately 25 new permit applications in the US. Materials have long played a very important role in the nuclear industry with applications throughout the entire fuel cycle; from fuel fabrication to waste stabilization. As the international community begins to look at advanced reactor systems and fuel cycles that minimize waste and increase proliferation resistance, materials will play an even larger role. Many of the advanced reactor concepts being evaluated operate at high-temperature requiring the use of durable, heat-resistant materials. Advanced metallic and ceramic fuels are being investigated for a variety of Generation IV reactor concepts. These include the traditional TRISO-coated particles, advanced alloy fuels for 'deep-burn' applications, as well as advanced inert-matrix fuels. In order to minimize wastes and legacy materials, a number of fuel reprocessing operations are being investigated. Advanced materials continue to provide a vital contribution in 'closing the fuel cycle' by stabilization of associated low-level and high-level wastes in highly durable cements, ceramics, and glasses. Beyond this fission energy application, fusion energy will demand advanced materials capable of withstanding the extreme environments of high-temperature plasma systems. Fusion reactors will likely depend on lithium-based ceramics to produce tritium that fuels the fusion plasma, while high-temperature alloys or ceramics will contain and control the hot plasma. All the while, alloys, ceramics, and ceramic-related processes continue to find applications in the management of wastes and byproducts produced by these processes.

Marra, John

2011-10-01

118

ADVANCED CO{sub 2} CYCLE POWER GENERATION  

SciTech Connect

Research is being conducted under United States Department of Energy (DOE) Contract DE-FC26-02NT41621 to develop a conceptual design and determine the performance characteristics of a new IGCC plant configuration that facilitates CO{sub 2} removal for sequestration. This new configuration will be designed to achieve CO{sub 2} sequestration without the need for water gas shifting and CO{sub 2} separation, and may eliminate the need for a separate sequestration compressor. This research introduces a novel concept of using CO{sub 2} as a working fluid for an advanced coal gasification based power generation system, where it generates power with high system efficiency while concentrating CO{sub 2} for sequestration. This project supports the DOE research objective of development of concepts for the capture and storage of CO{sub 2}.

A. Nehrozoglu

2003-07-01

119

Application of second generation advanced multi-media display processor (AMDP2) in a digital micro-mirror array based HDTV  

Microsoft Academic Search

A second generation of the advanced multi-media display processor (AMDP2) is applied in a consumer multi-media HDTV prototype system. The AMDP2 provides a cost effective and flexible platform which can be used to implement a wide array of video processing algorithms. Examples include interlace to progressive scan conversion, image scaling, and picture enhancement. This paper describes a digital micro mirror

David C. Hutchison; Kazuhiro Ohara; Akira Takeda

2001-01-01

120

Development of Advanced Stirling Radioisotope Generator for Space Exploration  

NASA Astrophysics Data System (ADS)

Under the joint sponsorship of the Department of Energy and NASA, a radioisotope power system utilizing Stirling power conversion technology is being developed for potential future space missions. The higher conversion efficiency of the Stirling cycle compared with that of Radioisotope Thermoelectric Generators (RTGs) used in previous missions (Viking, Pioneer, Voyager, Galileo, Ulysses, Cassini, and New Horizons) offers the advantage of a four-fold reduction in PuO2 fuel, thereby saving cost and reducing radiation exposure to support personnel. With the advancement of state-of-the-art Stirling technology development under the NASA Research Announcement (NRA) project, the Stirling Radioisotope Generator program has evolved to incorporate the advanced Stirling convertor (ASC), provided by Sunpower, into an engineering unit. Due to the reduced envelope and lighter mass of the ASC compared to the previous Stirling convertor, the specific power of the flight generator is projected to increase from 3.5 We/kg to 7 We/kg, along with a 25% reduction in generator length. Modifications are being made to the ASC design to incorporate features for thermal, mechanical, and electrical integration with the engineering unit. These include the heat collector for hot end interface, cold-side flange for waste heat removal and structural attachment, and piston position sensor for ASC control and power factor correction. A single-fault tolerant, active power factor correction controller is used to synchronize the Stirling convertors, condition the electrical power from AC to DC, and to control the ASCs to maintain operation within temperature and piston stroke limits. Development activities at Sunpower and NASA Glenn Research Center (GRC) are also being conducted on the ASC to demonstrate the capability for long life, high reliability, and flight qualification needed for use in future missions.

Chan, Jack; Wood, J. Gary; Schreiber, Jeffrey G.

2007-01-01

121

Advancing the Next Generation of Health Risk Assessment  

PubMed Central

Background: Over the past 20 years, knowledge of the genome and its function has increased dramatically, but risk assessment methodologies using such knowledge have not advanced accordingly. Objective: This commentary describes a collaborative effort among several federal and state agencies to advance the next generation of risk assessment. The objective of the NexGen program is to begin to incorporate recent progress in molecular and systems biology into risk assessment practice. The ultimate success of this program will be based on the incorporation of new practices that facilitate faster, cheaper, and/or more accurate assessments of public health risks. Methods: We are developing prototype risk assessments that compare the results of traditional, data-rich risk assessments with insights gained from new types of molecular and systems biology data. In this manner, new approaches can be validated, traditional approaches improved, and the value of different types of new scientific information better understood. Discussion and Conclusions: We anticipate that these new approaches will have a variety of applications, such as assessment of new and existing chemicals in commerce and the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. Additionally, results of the effort are likely to spur further research and test methods development. Full implementation of new approaches is likely to take 10–20 years.

Anastas, Paul T.; Birnbaum, Linda S.; Clark, Rebecca M.; Dix, David J.; Edwards, Stephen W.; Preuss, Peter W.

2012-01-01

122

Design features of Advanced Power Reactor (APR) 1400 steam generator  

SciTech Connect

Advanced Power Reactor 1400 (APR 1400) which is to achieve the improvement of the safety and economical efficiency has been developed by Korea Hydro and Nuclear Power Co., Ltd. (KHNP) with the support from industries and research institutes. The steam generator for APR 1400 is an evolutionary type from System 80{sup +}, which is the recirculating U-tube heat exchanger with integral economizer. Compared to the System 80{sup +} steam generator, it is focused on the improved design features, operating and design conditions of APR 1400 steam generator. Especially, from the operation experience of Korean Standard Nuclear Power Plant (KSNP) steam generator, the lessons-learned measures are incorporated to prevent the tube wear caused by flow-induced vibration (FIV). The concepts for the preventive design features against FIV are categorized to two fields; flow distribution and dynamic response characteristics. From the standpoint of flow distribution characteristics, the egg-crate flow distribution plate (EFDP) is installed to prevent the local excessive flow loaded on the most susceptible tube to wear. The parametric study is performed to select the optimum design with the efficient mitigation of local excessive flow. ATHOS3 Mod-01 is used and partly modified to analyze the flow field of the APR 1400 steam generator. In addition, the upper tube bundle support is designed to eliminate the presence of tube with a low natural frequency. Based on the improved upper tube bundle support, the modal analysis is performed and compared with that of System 80{sup +}. Using the results of flow distribution and modal analysis, the two mechanisms of flow-induced vibration are investigated; fluid-elastic instability (FEI) and random turbulence excitation (RTE). (authors)

Park, Tae-Jung; Park, Jun-Soo; Kim, Moo-Yong [DOOSAN Heavy Industries and Construction Co. LTD, 555 Guygok-Dong, Changwon, Gyeongnam, 641-792 (Korea, Republic of)

2004-07-01

123

Advanced numerical methods in mesh generation and mesh adaptation  

SciTech Connect

Numerical solution of partial differential equations requires appropriate meshes, efficient solvers and robust and reliable error estimates. Generation of high-quality meshes for complex engineering models is a non-trivial task. This task is made more difficult when the mesh has to be adapted to a problem solution. This article is focused on a synergistic approach to the mesh generation and mesh adaptation, where best properties of various mesh generation methods are combined to build efficiently simplicial meshes. First, the advancing front technique (AFT) is combined with the incremental Delaunay triangulation (DT) to build an initial mesh. Second, the metric-based mesh adaptation (MBA) method is employed to improve quality of the generated mesh and/or to adapt it to a problem solution. We demonstrate with numerical experiments that combination of all three methods is required for robust meshing of complex engineering models. The key to successful mesh generation is the high-quality of the triangles in the initial front. We use a black-box technique to improve surface meshes exported from an unattainable CAD system. The initial surface mesh is refined into a shape-regular triangulation which approximates the boundary with the same accuracy as the CAD mesh. The DT method adds robustness to the AFT. The resulting mesh is topologically correct but may contain a few slivers. The MBA uses seven local operations to modify the mesh topology. It improves significantly the mesh quality. The MBA method is also used to adapt the mesh to a problem solution to minimize computational resources required for solving the problem. The MBA has a solid theoretical background. In the first two experiments, we consider the convection-diffusion and elasticity problems. We demonstrate the optimal reduction rate of the discretization error on a sequence of adaptive strongly anisotropic meshes. The key element of the MBA method is construction of a tensor metric from hierarchical edge-based error estimates. We conclude that the quasi-optimal mesh must be quasi-uniform in this metric. All numerical experiments are based on the publicly available Ani3D package, the collection of advanced numerical instruments.

Lipnikov, Konstantine [Los Alamos National Laboratory; Danilov, A [MOSCOW, RUSSIA; Vassilevski, Y [MOSCOW, RUSSIA; Agonzal, A [UNIV OF LYON

2010-01-01

124

Investigation of advancing front method for generating unstructured grid  

NASA Astrophysics Data System (ADS)

The advancing front technique is used to generate an unstructured grid about simple aerodynamic geometries. Unstructured grids are generated using VGRID2D and VGRID3D software. Specific problems considered are a NACA 0012 airfoil, a bi-plane consisting of two NACA 0012 airfoil, a four element airfoil in its landing configuration, and an ONERA M6 wing. Inviscid time dependent solutions are computed on these geometries using USM3D and the results are compared with standard test results obtained by other investigators. A grid convergence study is conducted for the NACA 0012 airfoil and compared with a structured grid. A structured grid is generated using GRIDGEN software and inviscid solutions computed using CFL3D flow solver. The results obtained by unstructured grid for NACA 0012 airfoil showed an asymmetric distribution of flow quantities, and a fine distribution of grid was required to remove this asymmetry. On the other hand, the structured grid predicted a very symmetric distribution, but when the total number of points were compared to obtain the same results it was seen that structured grid required more grid points.

Thomas, A. M.; Tiwari, S. N.

1992-06-01

125

PRIVACY, ACCESS AND LAW ENFORCEMENT IN THE AGE OF INTERACTIVE VIDEO AND USER-GENERATED CONTENT  

Microsoft Academic Search

With growing concern about consumer privacy, net neutrality and access by law enforcement to fixed and mobile devices and applications, carriers and providers of interactive video and user-created content face an increasing array of regulatory requirements that can impact their service offerings. Tension between the need to protect user and content-creator confidentiality and the demand for access to network information

Todd Daubert; Devin Crock; Kelley Drye; Collier Shannon

126

Brain-computer interface: Next generation thought controlled distributed video game development platform  

Microsoft Academic Search

In this paper we present a system that uses the human ability to control a video game on a mobile device using electroencephalographic (EEG) Mu rhythms. The signals were obtained using a specially designed electrode cap and equipment, and sent through a Bluetooth connection to a PC that processes it in real time. The signal was then mapped onto two

Payam Aghaei Pour; Tauseef Gulrez; Omar AlZoubi; Gaetano Gargiulo; Rafael A. Calvo

2008-01-01

127

Next Generation Preschool Math: Can video-based PD work? (re: Math Talk)  

NSDL National Science Digital Library

As part of its NSF-funded research, the NGPM project is exploring the use of PD videos such as these, which focus on the role of math talk in preschool classrooms. The four brief clips (3-5 min. each) in this blog entry show teachers discussing the nature and importance of math talk and demonstrating how they promote it with their students.

2013-08-22

128

Clonal forestry, heterosis and advanced-generation breeding  

SciTech Connect

This report discusses the clonal planting stock offers many advantages to the forest products industry. Advanced-generation breeding strategies should be designed to maximize within-family variance and at the same time allow the capture of heterosis. Certainly there may be a conflict in the choice of breeding strategy based on the trait of interest. It may be that the majority of the traits express heterosis due to overdominance. Alternatively, disease resistance is expressed as the lack of a specific metabolite or infection court then the homozygous recessive genotype may be the most desirable. Nonetheless, as the forest products industry begins to utilize the economic advantages of clonal forestry, breeding strategies will have to be optimized for these commercial plant materials. Here, molecular markers can be used to characterize the nature of heterosis and therefore define the appropriate breeding strategy.

Tuskan, G.A.

1997-08-01

129

Second Generation Advanced Reburning for High Efficiency NOx Control  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR) which has the potential to achieve 90+ NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction. The ninth reporting period in Phase II (October 1-December 31, 1999) included preparation of the 10 x 10{sup 6} Btu/hr Tower Furnace for tests and setting the SGAR model to predict process performance under Tower Furnace conditions. Based on results of previous work, a paper has been prepared and submitted for the presentation at the 28 Symposium (International) on Combustion to be held at the University of Edinburgh, Scotland.

Vladimir M. Zamansky; Vitali V. Lissianski

1999-12-31

130

Silicon carbide: an advanced platform for next generation quantum devices  

NASA Astrophysics Data System (ADS)

Optical and paramagnetic deep defects in silicon carbide (SiC) offer a vast opportunity to realize advanced quantum device and sensors based on SiC bulk material and SiC nanostructures. Nanostructures in silicon carbide such as nanoparticle and quantum dots possess strong sub-bandgap emission due to both quantum confinement and radiative recombination in deep defects, making them ideal as bio-markers. We will highlight silicon carbide extremely rich underlying resources, ideal for the implementation of next generation nanophotonics and spintronics quantum devices and related biomedical applications. Specifically, we show here the isolation of intrinsic defects in SiC achieved by electron irradiation of the material, yielding single photon emission.

Castelletto, S.; Johnson, B. C.; Parker, A.

2013-09-01

131

Second Generation Advanced Reburning for High Efficiency NOx Control  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR) which has the potential to achieve 90+ NO{sub x} control in coal-fired boilers at a significantly lower cost than SCR. The eleventh reporting period in Phase II (April 1-June 30, 2000) included design validation AR-Lean tests (Task 2.6) in the 10 x 10{sup 6} Btu/hr Tower Furnace. The objective of tests was to determine the efficiency of AR-Lean at higher than optimum OFA/N-Agent injection temperatures in large pilot-scale combustion facility. Tests demonstrated that co-injection of urea with overfire air resulted in NO{sub x} reduction. However, observed NO{sub x} reduction was smaller than that under optimum conditions.

Vladimir Zamansky

2000-06-30

132

Second Generation Advanced Reburning for High Efficiency NOx Control  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR) which has the potential to achieve 90+% NO{sub x} control in coal-fired boilers at a significantly lower cost than SCR. The twelfth reporting period in Phase II (July 3-October 15, 2000) included design validation AR-Lean tests (Task No.2.6) in the 10 x 10{sup 6} Btu/hr Tower Furnace. The objective of tests was to determine the efficiency of AR-Lean at higher than optimum OFA/N-Agent injection temperatures in large pilot-scale combustion facility. Tests demonstrated that co-injection of urea with overfire air resulted in NO{sub x} reduction. However, observed NO{sub x} reduction was smaller than that under optimum conditions.

Roy Payne; Lary Swanson; Antonio Marquez; Ary Chang; Vladimir M. Zamansky; Pete M. Maly; Vitali V. Lissianski

2000-09-30

133

Second Generation Advanced Reburning for High Efficiency NOx Control  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR) which has the potential to achieve 90+% NO{sub x} control in coal-fired boilers at a significantly lower cost than SCR. The thirteenth reporting period in Phase II (October 1-December 31, 2000) included SGAR tests in which coal was used as the reburning fuel. All test work was conducted at GE-EER's 1.0 MMBtu/hr Boiler Simulator Facility. Three test series were performed including AR-Lean, AR-Rich, and reburning + SNCR. Tests demonstrated that over 90% NO{sub x} reduction could be achieved with utilization of coal as a reburning fuel in SGAR. The most effective SGAR variant is reburning + SNCR followed by AR-Lean and AR-Rich.

Vladimir M. Zamansky; Pete M. Maly; Vitali V. Lissianski

2000-12-31

134

Flight evaluation of advanced third-generation midwave infrared sensor  

NASA Astrophysics Data System (ADS)

In FY-97 the Counter Drug Optical Upgrade (CDOU) demonstration program was initiated by the Program Executive Office for Counter Drug to increase the detection and classification ranges of P-3 counter drug aircraft by using advanced staring infrared sensors. The demonstration hardware is a `pin-for-pin' replacement of the AAS-36 Infrared Detection Set (IRDS) located under the nose radome of a P-3 aircraft. The hardware consists of a 3rd generation mid-wave infrared (MWIR) sensor integrated into a three axis-stabilized turret. The sensor, when installed on the P- 3, has a hemispheric field of regard and analysis has shown it will be capable of detecting and classifying Suspected Drug Trafficking Aircraft and Vessels at ranges several factors over the current IRDS. This paper will discuss the CDOU system and it's lab, ground, and flight evaluation results. Test targets included target templates, range targets, dedicated target boats, and targets of opportunity at the Naval Air Warfare Center Aircraft Division and at operational test sites. The objectives of these tests were to: (1) Validate the integration concept of the CDOU package into the P-3 aircraft. (2) Validate the end-to-end functionality of the system, including sensor/turret controls and recording of imagery during flight. (3) Evaluate the system sensitivity and resolution on a set of verified resolution targets templates. (4) Validate the ability of the 3rd generation MWIR sensor to detect and classify targets at a significantly increased range.

Shen, Chyau N.; Donn, Matthew

1998-08-01

135

A method for generating enhanced vision displays using OpenGL video texture  

NASA Astrophysics Data System (ADS)

Degraded visual conditions can marvel the curious and destroy the unprepared. While navigation instruments are trustworthy companions, true visual reference remains king of the hills. Poor visibility may be overcome via imaging sensors such as low light level charge-coupled-device, infrared, and millimeter wave radar. Enhanced Vision systems combine this imagery into a comprehensive situation awareness display, presented to the pilot as reference imagery on a cockpit display, or as world-conformal imagery on head-up or head-mounted displays. This paper demonstrates that Enhanced Vision imaging can be achieved at video rates using typical CPU / GPU architecture, standard video capture hardware, dynamic non-linear ray tracing algorithms, efficient image transfer methods, and simple OpenGL rendering techniques.

Bernier, Kenneth L.

2010-04-01

136

The ALS (Advanced Light Source): A third generation light source  

SciTech Connect

The Advanced Light Source, a third-generation national synchrotron-radiation facility now under construction at the Lawrence Berkeley Laboratory, is scheduled to begin serving qualified users across a broad spectrum of research areas in April 1993. Based on a low- emittance electron storage ring optimized to operate at 1.5 GeV, the ALS will have 11 long straight sections available for insertion devices (undulators and wigglers). Undulators will generate high- brightness soft x-ray and ultraviolet (XUV) radiation; wigglers will extend the spectrum generated into the hard x-ray region, but at a lower brightness. Up to 48 bending-magnet ports will also be available. Engineering design has begun on a complement of three undulators with periods of 8.0, 5.0, and 3.9 cm that between them will cover the photon-energy range from 5.4 eV to 2.5 keV when the first, third, and fifth harmonics are used, as well as a wiggler with a critical energy of 3.1 keV. Undulator beam lines will be based on high-resolution spherical-grating monochromators. A Call for Proposals has been issued for those who wish to participate in the design, development, commissioning, and operation of the initial complement of ALS experimental facilities (insertion devices, beam lines, and experimental stations) as members of a participating research team. The deadline for receipt of proposals was August 15, 1989. Proposals are expected to reflect the Letters of Interest received from potential PRTs during the previous year. 6 refs., 4 figs., 5 tabs.

Robinson, A.L.; Schlachter, A.S.

1989-09-01

137

Robust and Rapid Generation of Animated Faces from Video Images: A Model-Based Modeling Approach  

Microsoft Academic Search

We have developed an easy-to-use and cost-effective system to construct textured 3D animated face models from videos with minimal user interaction. This is a particularly challenging task for faces due to a lack of prominent textures. We develop a robust system by following a model- based approach: we make full use of generic knowledge of faces in head motion determination,

Zhengyou Zhang; Zi-cheng Liu; Dennis Adler; Erik Hanson; Ying Shan

2004-01-01

138

An instant semantics acquisition system of live soccer video with application to live event alert and on-the-fly language selection  

Microsoft Academic Search

Automatic indexing of recorded sports video is a hard problem, even more so for live sports video, though a lot of advances have been achieved in the recent years. This paper presents a semi-automatic instant semantics generation system of live soccer video and its two applications: live event alert and instant semantics embedding. A key technical challenge of building the

Xinguo Yu; Xin Yan; Liyuan Li; Hon Wai Leong

2008-01-01

139

The NEPTUNE Facility for 2nd Generation Advanced Accelerator Experiments  

NASA Astrophysics Data System (ADS)

The NEPTUNE Laboratory, under construction at UCLA, will be a user facility for exploring concepts useful for advanced accelerators. The programmatic goal for the laboratory is to inject extremely high quality electron bunches into a laser-driven plasma beat wave accelerator (PBWA) and explore ideas for extracting a high quality (? E/E < 0.1, ? n < 10 ? mm-mrad), high energy (100 MeV) beam from a plasma structure operating at about 1 THz and about 3 GeV/m. The lab will combine an upgraded MARS CO2 laser and the state-of-the-art SATURNUS RF gun and linac. The new MARS laser will be about 1 TW (100 J, 100 ps), up from 0.2 TW (70 J, 350 ps). This allows for doubling the spot size at the IP and quadrupling the interaction length while still driving gradients of 3 GeV/m. The SATURNUS gun will be upgraded to the Brookhaven 1.6 cell design. A novel, multicell Plane-Wave Transformer RF gun is also under development. A sync-pumped, sub-ps dye laser is available to directly produce ultrashort electron pulses (1/5 of an accelerating bucket). Part of the research program will be devoted to studying pulse compression and phase-locking techniques at these ultrahigh frequencies and diagnosing microbunches generated by such structures. Finally, shaped electron pulses will be studied for the electron driven Plasma Wakefield Accelerator (PWFA) concept.

Clayton, C. E.; Joshi, C.; Marsh, K. A.; Pellegrini, C.; Rosenzwieg, J.

1997-05-01

140

ADVANCED CERAMIC MATERIALS FOR NEXT-GENERATION NUCLEAR APPLICATIONS  

SciTech Connect

Rising global energy demands coupled with increased environmental concerns point to one solution; they must reduce their dependence on fossil fuels that emit greenhouse gases. As the global community faces the challenge of maintaining sovereign nation security, reducing greenhouse gases, and addressing climate change nuclear power will play a significant and likely growing role. In the US, nuclear energy already provides approximately one-fifth of the electricity used to power factories, offices, homes, and schools with 104 operating nuclear power plants, located at 65 sites in 31 states. Additionally, 19 utilities have applied to the US Nuclear Regulatory Commission (NRC) for construction and operating licenses for 26 new reactors at 17 sites. This planned growth of nuclear power is occurring worldwide and has been termed the 'nuclear renaissance.' As major industrial nations craft their energy future, there are several important factors that must be considered about nuclear energy: (1) it has been proven over the last 40 years to be safe, reliable and affordable (good for Economic Security); (2) its technology and fuel can be domestically produced or obtained from allied nations (good for Energy Security); and (3) it is nearly free of greenhouse gas emissions (good for Environmental Security). Already an important part of worldwide energy security via electricity generation, nuclear energy can also potentially play an important role in industrial processes and supporting the nation's transportation sector. Coal-to-liquid processes, the generation of hydrogen and supporting the growing potential for a greatly increased electric transportation system (i.e. cars and trains) mean that nuclear energy could see dramatic growth in the near future as we seek to meet our growing demand for energy in cleaner, more secure ways. In order to address some of the prominent issues associated with nuclear power generation (i.e., high capital costs, waste management, and proliferation), the worldwide community is working to develop and deploy new nuclear energy systems and advanced fuel cycles. These new nuclear systems address the key challenges and include: (1) extracting the full energy value of the nuclear fuel; (2) creating waste solutions with improved long term safety; (3) minimizing the potential for the misuse of the technology and materials for weapons; (4) continually improving the safety of nuclear energy systems; and (5) keeping the cost of energy affordable.

Marra, J.

2010-09-29

141

VIDEO QUALITY AND BEYOND  

Microsoft Academic Search

This paper gives a brief overview of the current state of the art of video quality metrics and discusses their achieve- ments as well as shortcomings. It also summarizes the main standardization efforts by the Video Quality Experts Group (VQEG). It then looks at recent trends and developments in video quality research, in particular the emergence of new generations of

Stefan Winkler

142

The role of computer graphics cards in advancing electromagnetics education  

Microsoft Academic Search

Over the past decade video cards have grown from simple interfaces to the monitor to powerful computational engines. The rise in advanced graphics for games has driven the manufacturers of video cards to a more rapid development cycle producing computationally powerful chips. The current generation of advanced graphical processing units (GPU's) has over four times the number of transistors than

A. Z. Elsherbeni

2010-01-01

143

Second Generation Advanced Reburning for High Efficiency NOx Control  

SciTech Connect

This project develops a family of novel Second Generation Advanced Reburning (SGAR) NO{sub x} control technologies, which can achieve 95% NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction (SCR). The conventional Advanced Reburning (AR) process integrates basic reburning and N-agent injection. The SGAR systems include six AR variants: (1) AR-Lean--injection of the N-agent and promoter along with overfire air; (2) AR-Rich--injection of N-agent and promoter into the reburning zone; (3) Multiple Injection Advanced Reburning (MIAR)--injection of N-agents and promoters both into the reburning zone and with overfire air; (4) AR-Lean + Promoted SNCR--injection of N-agents and promoters with overfire air and into the temperature zone at which Selective Non-Catalytic Reduction (SNCR) is effective; (5) AR-Rich + Promoted SNCR--injection of N-agents and promoters into the reburning zone and into the SNCR zone; and (6) Promoted Reburning + Promoted SNCR--basic or promoted reburning followed by basic or promoted SNCR process. The project was conducted in two phases over a five-year period. The work included a combination of analytical and experimental studies to confirm the process mechanisms, identify optimum process configurations, and develop a design methodology for full-scale applications. Phase I was conducted from October, 1995 to September, 1997 and included both analytical studies and tests in bench and pilot-scale test rigs. Phase I moved AR technology to Maturity Level III-Major Subsystems. Phase II is conducted over a 45 month period (October, 1997-June, 2001). Phase II included evaluation of alternative promoters, development of alternative reburning fuel and N-Agent jet mixing systems, and scale up. The goal of Phase II was to move the technology to Maturity Level I-Subscale Integrated System. Tests in combustion facility ranging in firing rate from 0.1 x 10{sup 6} to 10 x 10{sup 6} Btu/hr demonstrated the viability of the AR technology. The performance goals of the project to reduce NO{sub x} by up to 95% with net emissions less than 0.06 lb/10{sup 6} Btu and to minimize other pollutants (N{sub 2}O and NH{sub 3}) to levels lower than reburning and SNCR have been met. Experimental data demonstrated that AR-Lean + SNCR and Reburning + SNCR are the most effective AR configurations, followed by AR-Lean and AR-Rich. Promoters can increase AR NO{sub x} reduction efficiency. Promoters are the most effective at small amounts of the reburning fuel (6-10% of the total fuel heat input). Promoters provide the means to improve NO{sub x} reduction and simultaneously decrease the amount of reburning fuel. Tests also showed that alkali-containing compounds are effective promoters of the AR process. When co-injected with N-agent, they provide up to 25 % improvement in NO{sub x} reduction. A detailed reaction mechanism and simplified representation of mixing were used in modeling of AR processes. Modeling results demonstrated that the model correctly described a wide range of experimental data. Mixing and thermal parameters in the model can be adjusted depending on characteristics of the combustion facility. Application of the model to the optimization of AR-Lean has been demonstrated. Economic analysis demonstrated a considerable economic advantage of AR technologies in comparison with existing commercial NO{sub x} control techniques, such as basic reburning, SNCR, and SCR. Particularly for deep NO{sub x} control, coal-based AR technologies are 50% less expansive than SCR for the same level of NO{sub x} control. The market for AR technologies is estimated to be above $110 million.

Vladimir M. Zamansky; Peter M. Maly; Vitali V. Lissianski; Mark S. Sheldon; David Moyeda; Roy Payne

2001-06-30

144

Interactive storytelling via video content recombination  

Microsoft Academic Search

In the paper we present a prototype of video-based storytelling that is able to generate multiple story variants from a baseline video. The video content for the system is generated by an adaptation of forefront video summarisation techniques that decompose the video into a number of Logical Story Units (LSU) representing sequences of contiguous and interconnected shots sharing a common

Julie Porteous; Sergio Benini; Luca Canini; Fred Charles; Marc Cavazza; Riccardo Leonardi

2010-01-01

145

Well beyond streaming video: IPv6 and the next generation television  

Microsoft Academic Search

The Internet has provided a plethora of commercial opportunities, the majority of them arising from advances in software and networking. As the technology evolves in an ever increasing pace, new opportunities are bound to be created. This paper examines how one of these technologies, the 6th version of the Internet Protocol, may affect the Internet and the opportunities associated with

Savvas Papagiannidis; Joanna Berry; Feng Li

2006-01-01

146

Advancing the Next Generation of Health Risk Assessment  

EPA Science Inventory

Over the past 20 years, knowledge of the genome and its function has increased dramatically, but risk assessment methodologies utilizing such knowledge have not advanced accordingly. Objective. This review describes a collaborative effort among several federal and stat...

147

Materials choices for the advanced LWR steam generators  

Microsoft Academic Search

Current light water reactor (LWR) steam generators have been affected by a variety of corrosion and mechanical damage degradation mechanisms. Included are wear caused by tube vibration, intergranular corrosion, pitting, and thinning or wastage of the steam generator tubing and accelerated corrosion of carbon steel supports (denting). The Electric Power Research Institute (EPRI) and the Steam Generator Owners Groups (I,

J. P. N. Paine; C. E. Shoemaker; A. R. McIlree

1987-01-01

148

Fast generation of video holograms of three-dimensional moving objects using a motion compensation-based novel look-up table.  

PubMed

A novel approach for fast generation of video holograms of three-dimensional (3-D) moving objects using a motion compensation-based novel-look-up-table (MC-N-LUT) method is proposed. Motion compensation has been widely employed in compression of conventional 2-D video data because of its ability to exploit high temporal correlation between successive video frames. Here, this concept of motion-compensation is firstly applied to the N-LUT based on its inherent property of shift-invariance. That is, motion vectors of 3-D moving objects are extracted between the two consecutive video frames, and with them motions of the 3-D objects at each frame are compensated. Then, through this process, 3-D object data to be calculated for its video holograms are massively reduced, which results in a dramatic increase of the computational speed of the proposed method. Experimental results with three kinds of 3-D video scenarios reveal that the average number of calculated object points and the average calculation time for one object point of the proposed method, have found to be reduced down to 86.95%, 86.53% and 34.99%, 32.30%, respectively compared to those of the conventional N-LUT and temporal redundancy-based N-LUT (TR-N-LUT) methods. PMID:23670014

Kim, Seung-Cheol; Dong, Xiao-Bin; Kwon, Min-Woo; Kim, Eun-Soo

2013-05-01

149

VIDEO ENHANCEMENT AND RESTORATION  

Microsoft Academic Search

Even with the advancing camera and digital recording technology, there are many situations in which recorded image sequences - or video for short -may suffer from severe degradations. The poor quality of recorded image sequences may be due to, for instance, the imperfect or uncontrollable recording conditions such as one encounters in astronomy, forensic sciences, and medical imaging. Video enhancement

Reginald L. Lagendijk; Jan Biemond; Andrei Rares; Marcel J. T. Reinders

1999-01-01

150

BIOMASS GASIFICATION AND POWER GENERATION USING ADVANCED GAS TURBINE SYSTEMS  

Microsoft Academic Search

A multidisciplined team led by the United Technologies Research Center (UTRC) and consisting of Pratt & Whitney Power Systems (PWPS), the University of North Dakota Energy & Environmental Research Center (EERC), KraftWork Systems, Inc. (kWS), and the Connecticut Resource Recovery Authority (CRRA) has evaluated a variety of gasified biomass fuels, integrated into advanced gas turbine-based power systems. The team has

David Liscinsky

2002-01-01

151

Advanced feedwater control for next generation nuclear power systems  

Microsoft Academic Search

In current generation Pressurized Water Reactors (PWRs), the control of Steam Generator level experiences challenges over the full range of plant operating conditions. These challenges can be particularly troublesome in the low power range where the feedwater is highly subcooled and minor changes in the feed flow may cause oscillations in the SG level, potentially leading to reactor trip. Substantial

Hengliang Shen

2006-01-01

152

Advanced automatic test pattern generation techniques for path delay faults  

Microsoft Academic Search

Based on the sophisticated techniques applied in the automatic test pattern generation system SOCRATES, the authors present the extension of SOCRATES to test generation for path delay faults. In particular, they propose a ten-valued logic and describe the corresponding implication and path sensitization procedures in detail. After discussing an extended multiple backtrace procedure, which has been developed specifically to meet

Michael H. Schulz; Karl Fuchs; Franz Fink

1989-01-01

153

Advanced numerical methods in mesh generation and mesh adaptation  

Microsoft Academic Search

Numerical solution of partial differential equations requires appropriate meshes, efficient solvers and robust and reliable error estimates. Generation of high-quality meshes for complex engineering models is a non-trivial task. This task is made more difficult when the mesh has to be adapted to a problem solution. This article is focused on a synergistic approach to the mesh generation and mesh

Konstantine Lipnikov; A Danilov; Y Vassilevski; A Agonzal

2010-01-01

154

Video Teleconference Design Evaluation.  

National Technical Information Service (NTIS)

The Office of the Assistant Secretary of Defense for Manpower, Reserve Affairs, and Logistics (OASD, MRAL) plans to improve productivity by taking advantage of recent technological advances in the following areas: video teleconferencing facilities, databa...

P. J. Sticha J. F. Patterson

1980-01-01

155

Next generation antihistamines: therapeutic rationale, accomplishments and advances.  

PubMed

Antihistamines, among the most commonly prescribed drugs in the world, have evolved considerably since the first generation was introduced >50 years ago. The first generation antihistamines (e.g., chlorpheniramine, diphenhydramine, promethazine and hydroxyzine) are still widely available and in use today. These drugs have considerable sedative effects caused by their ability to cross the blood-brain barrier. The next generation of antihistamines to emerge in the market were devoid of these sedative effects; however, two (terfenadine and astemizole) have shown rare but lethal cardiotoxic side effects. The third generation antihistamines, metabolites of the earlier drugs, have demonstrated no cardiac effects of the parent drugs and are at least as potent. Many have exhibited superior pharmacokinetic and pharmacological profiles, including an improved onset of action and duration of effect. The clinical benefit of these newer oral antihistamines will clearly help improve the quality of life of patients with chronic allergies. PMID:12036424

Oppenheimer, John J; Casale, Thomas B

2002-06-01

156

Advanced Computational Materials Science: Application to Fusion and Generation IV Fission Reactors (Workshop Report)  

Microsoft Academic Search

The ''Workshop on Advanced Computational Materials Science: Application to Fusion and Generation IV Fission Reactors'' was convened to determine the degree to which an increased effort in modeling and simulation could help bridge the gap between the data that is needed to support the implementation of these advanced nuclear technologies and the data that can be obtained in available experimental

Stoller

2004-01-01

157

Video falsifying for special effect production  

Microsoft Academic Search

Video Falsifying is a technique for generating fake video by altering, combining, or creating new video contents. For instance, the outcome of a 100-meter race can be changed. Alternatively, the winner of a horse race can be created from combined videos. The technique is for special effect production in movie industry. We demonstrate how to use our video falsifying techniques

Nick C. Tang; Timothy K. Shih; Hsing-ying Zhong; Joseph C. Tsai; Chin-yao Tang

2008-01-01

158

Advanced feedwater control for next generation nuclear power systems  

NASA Astrophysics Data System (ADS)

In current generation Pressurized Water Reactors (PWRs), the control of Steam Generator level experiences challenges over the full range of plant operating conditions. These challenges can be particularly troublesome in the low power range where the feedwater is highly subcooled and minor changes in the feed flow may cause oscillations in the SG level, potentially leading to reactor trip. Substantial attention has been given to feedwater control systems with recognition of the difficulty of the full range feedwater control problem due to steam generator level shrink-swell phenomena, changes in valve and flow path characteristics, and other nonlinear phenomena over the full range of operating conditions. The IRIS reactor concept adds additional challenges to the feedwater control problem as a result of a steam generator design where neither level or steam generator mass inventory can be measured directly. Neural networks have demonstrated capabilities to capture a wide range of dynamic signal transformation and non-linear problems. In this project a detailed engineering simulation of plant response is used to develop and test neural control methods for the IRIS full range feedwater control problem. The established neural feed controller has demonstrated the capability to improve the performance of SG level or mass control under transient conditions and over a wide range of reactor power including abnormal conditions.

Shen, Hengliang

159

Assessment of Metal Media Filters for Advanced Coal-Based Power Generation Applications  

SciTech Connect

Advanced coal and biomass-based gas turbine power generation technologies (IGCC, PFBC, PCFBC, and Hipps) are currently under development and demonstration. Efforts at Siemens Westinghouse Power Corporation (SWPC) have been focused on the development and demonstration of hot gas filter systems as an enabling technology for power generation. This paper reviews SWPC's material and component assessment efforts, identifying the performance, stability, and life of porous metal, advanced alloy, and intermetallic filters under simulated, pressurized fluidized-bed combustion conditions.

Alvin, M.A.

2002-09-19

160

Advanced Materials Research with 3RD Generation Synchrotron Light  

NASA Astrophysics Data System (ADS)

H and D surface nanochemistry on an advanced wide band gap semiconductor, silicon carbide is investigated by synchrotron radiation-based core level and valence band photoemission, infrared absorption and scanning tunneling spectroscopy, showing the 1st example of H/D-induced semiconductor surface metallization, that also occurs on a pre-oxidized surface. These results are compared to recent state-of-the-art ab-initio total energy calculations. Most interestingly, an amazing isotopic behavior is observed with a smaller charge transfer from D atoms suggesting the role of dynamical effects. Such findings are especially exciting in semiconductor physics and in interface with biology.

Soukiassian, P.; D'angelo, M.; Enriquez, H.; Aristov, V. Yu.

161

Self-similar traffic generation using a fractional ARIMA model. Application to the VBR MPEG video traffic  

Microsoft Academic Search

Recent studies and traffic measurements have shown that variable bit rate (VBR) video traffic, as well as local area network (LAN) traffic, exhibits long-range dependence (LRD). When this kind of traffic is transmitted over ATM networks, the LRD property implies a larger requirement in buffer allocation and channel capacity. A new fractional ARIMA model for VBR MPEG video traffic at

Luis J. de la Cruz; Esteve Pallarès; Juan J. Alins; Jorge Mata

1998-01-01

162

Advanced pulse generator and preamplifier for the HELEN laser  

Microsoft Academic Search

A replacement for the HELEN laser has been proposed that would involve a considerable increase in performance up to 100 TW from 32 beams. The design for the new laser is to be based on the technology being developed for the US National Ignition Facility. The pulse generation and preamplification stages employ novel technologies and represent a significant departure from

Michael J. Norman; E. J. Harvey; N. W. Hopps; J. R. Nolan; W. F. Smith

1997-01-01

163

Advancing Next-Generation Energy in Indian Country (Fact Sheet)  

SciTech Connect

This fact sheet provides information on the Alaska Native governments selected to receive assistance from the Strategic Technical Assistance Response Team (START) Program, a U.S. Department of Energy Office of Indian Energy Policy and Programs (DOE-IE) initiative to provide technical expertise to support the development of next-generation energy projects in Indian Country.

Not Available

2012-08-01

164

Advancing Next-Generation Energy in Indian Country (Fact Sheet)  

SciTech Connect

This fact sheet provides information on Tribes in the lower 48 states selected to receive assistance from the Strategic Technical Assistance Response Team (START) Program, a U.S. Department of Energy Office of Indian Energy Policy and Programs (DOE-IE) initiative to provide technical expertise to support the development of next-generation energy projects in Indian Country.

Not Available

2012-08-01

165

Laser-generated shock waves and applications to advanced materials  

SciTech Connect

The use of lasers for the generation and application of high-pressure shock waves offers unique advantages and challenges. In contrast to impact systems, the range of pressures and strain rates is substantially greater using laser drive. The ability to change the temporal shape of the drive pulse allows a variety of strain-rate conditions to be obtained. In addition, high time-resolution in situ diagnostic methods are relatively simple to implement. Lasers can be at a disadvantage compared to impact methods in terms of shock generation, simplicity of the states achieved, the difficulty of characterizing bulk properties, and sample size. I will review the physics of laser-driven shock physics, diagnostic methods, and applications, with an emphasis on material physics. I will also present some views on important new directions for this area of research.

Holmes, N.C.

1996-01-19

166

Listeria Video  

NSDL National Science Digital Library

This video of This microscope video shows how live Listeria move via actin filaments in an infected cell. This video is also featured on the DVD 2000 and Beyond: Confronting the Microbe Menace, available free from HHMI. This video is one minute and 7 seconds in length, and available in MOV (6 MB) and WMV (8 MB). All Infectious Disease videos are located at: http://www.hhmi.org/biointeractive/disease/video.html.

Dr. Brett Finlay (Howard Hughes Medical Institute;)

2007-03-28

167

Assessment of Metal Media Filters for Advanced Coal-Based Power Generation Applications  

Microsoft Academic Search

Advanced coal and biomass-based gas turbine power generation technologies (IGCC, PFBC, PCFBC, and Hipps) are currently under development and demonstration. Efforts at Siemens Westinghouse Power Corporation (SWPC) have been focused on the development and demonstration of hot gas filter systems as an enabling technology for power generation. This paper reviews SWPC's material and component assessment efforts, identifying the performance, stability,

2002-01-01

168

A Motivational Model of Video Game Engagement  

Microsoft Academic Search

More Americans now play video games than go to the movies (NPD Group, 2009). The meteoric rise in popularity of video games highlights the need for research approaches that can deepen our scientific understanding of video game engagement. This article advances a theory-based motivational model for examining and evaluating the ways by which video game engagement shapes psychological processes and

Andrew K. Przybylski; C. Scott Rigby; Richard M. Ryan

2010-01-01

169

Neurogenetics: Advancing the "Next-Generation" of Brain Research  

PubMed Central

There can be little doubt that genetics has transformed our understanding of mechanisms mediating brain disorders. The last two decades have brought tremendous progress in terms of accurate molecular diagnoses and knowledge of the genes and pathways that are involved in a large number of neurological and psychiatric disorders. Likewise, new methods and analytical approaches, including genome array studies and “next-generation” sequencing technologies, are bringing us deeper insights into the subtle complexities of the genetic architecture that determines our risks for these disorders. As we now seek to translate these discoveries back to clinical applications, a major challenge for the field will be in bridging the gap between genes and biology. In this Overview of Neuron’s special review issue on neurogenetics, we reflect on progress made over the last two decades and highlight the challenges as well as the exciting opportunities for the future.

Zoghbi, Huda Y.; Warren, Stephen T.

2010-01-01

170

Streaming video for distributed simulation  

NASA Astrophysics Data System (ADS)

Distributed simulation environments are increasingly using video to stimulate operational systems and their prototypical equivalents. Traditionally, this video has been synthesized and delivered by an analog means to consuming software applications. Scene generators typically render to commodity video cards, generate out of band metadata, and convert their outputs to formats compatible with the stimulated systems. However, the approach becomes hardware intensive as environment scale and distribution requirements grow. Streaming video technologies can be applied to uncouple video sources from their consumers, thereby enabling video channel quantities beyond rendering hardware outputs. Moreover, metadata describing the video content can be multiplexed, thereby ensuring temporal registration between video and its attribution. As an application of this approach, the Night Vision Image Generator (NVIG) has been extended and integrated with distribution architectures to deliver streaming video in virtual simulation environments. Video capture hardware emulation and application frame buffer reads are considered for capturing rendered scenes. Video source to encoder bindings and content multiplexing are realized by combining third party video codec, container, and transport implementations with original metadata encoders. Readily available commercial and open source solutions are utilized for content distribution and demultiplexing to a variety of formats and clients. Connected and connectionless distribution approaches are discussed with respect to latency and reliability. Client side scalability, latency, and initialization issues are addressed. Finally, the solution is applied to tactical systems stimulus and training, showing the evolvement from the analog to the streamed video approach.

Webster, Steven G.; Paul, Douglas J.

2010-04-01

171

[Third generation anti-androgen therapy of advanced prostate cancer].  

PubMed

The identification of intracellular androgen synthesis by prostate cancer cells has led to the identification of new targets and the development of third generation drugs for the therapy of castration-resistant prostate cancer. Inhibitors of androgen synthesis and more potent androgen receptor antagonists, such as abiraterone acetate, MDV3100, TAK-700 and TOK-001, will improve treatment by prolongation of survival and palliation. A significant reduction of tumor-associated pain and a survival advantage of 4.6 months compared to placebo following docetaxel-based chemotherapy has already been shown for abiraterone in a phase III study. Further phase III studies with abiraterone, MDV3100 and TAK-700 before and after docetaxel-based chemotherapy are currently running. TOK-001 is the first of the new drugs which combines the therapeutic use of androgen synthesis inhibition and androgen receptor antagonism in a single drug. The first clinical studies with this therapy are currently being carried out and it remains to be seen whether this combination leads to increased effectiveness. With an increase in therapy options for prostate-resistant cancer, one of the projects in the coming years will be to integrate the present therapies into therapy concepts. In addition to an effective sequence of the individual medications, a combination with already established therapies, such as cytostatic agents, could also prove to be useful. Altogether, the development of new antihormonal therapies is a considerable expansion of the therapy options for patients which could contribute to an improvement of the quality of life and the prognosis of patients. PMID:22113551

Ohlmann, C-H; Kamradt, J; Stöckle, M

2012-04-01

172

Advanced gas turbines: The choice for low-cost, environmentally superior electric power generation  

SciTech Connect

In July 1993, the US Department of Energy (DOE) initiated an ambitious 8-year program to advance state-of-the-art gas turbine technology for land-based electric power generation. The program, known as the Advanced Turbine System (ATS) Program, is a joint government/industry program with the objective to demonstrate advanced industrial and utility gas turbine systems by the year 2000. The goals of the ATS Program are to develop gas turbine systems capable of providing low-cost electric power, while maintaining environmental superiority over competing power generation options. A progress report on the ATS Program pertaining to program status at DOE will be presented and reviewed in this paper. The technical challenges, advanced critical technology requirements, and systems designs meeting the goals of the program will be described and discussed.

Zeh, C.M.

1996-08-01

173

Dashboard Videos  

ERIC Educational Resources Information Center

|Last school year, I had a web link emailed to me entitled "A Dashboard Physics Lesson." The link, created and posted by Dale Basier on his "Lab Out Loud" blog, illustrates video of a car's speedometer synchronized with video of the road. These two separate video streams are compiled into one video that students can watch and analyze. After seeing…

Gleue, Alan D.; Depcik, Chris; Peltier, Ted

2012-01-01

174

Immersive video  

Microsoft Academic Search

Interactive video and television viewers should have the power to control their viewing position. To make this a reality, we introduce the concept of Immersive Video, which employs computer vision and computer graphics technologies to provide remote users a sense of complete immersion when viewing an event. Immersive Video uses multiple videos of an event, captured from different perspectives, to

Saied Moezzi; Arun L. Katkere; Ramesh C. Jain

1996-01-01

175

Immersive video  

Microsoft Academic Search

Interactive video and television viewers should have the power to control their viewing position. To realize this, we introduce the concept of immersive video, which employs computer vision and computer graphics technologies to provide viewers of live events a sense of total immersion by providing the viewer with a “virtual camera”. Immersive video uses multiple videos of an event, captured

Saied Moezzi; Arun Katkere; D. Y. Kuramura; Ramesh Jain

1996-01-01

176

Dashboard Videos  

ERIC Educational Resources Information Center

Last school year, I had a web link emailed to me entitled "A Dashboard Physics Lesson." The link, created and posted by Dale Basier on his "Lab Out Loud" blog, illustrates video of a car's speedometer synchronized with video of the road. These two separate video streams are compiled into one video that students can watch and analyze. After seeing…

Gleue, Alan D.; Depcik, Chris; Peltier, Ted

2012-01-01

177

ATETV Biotech Videos  

NSDL National Science Digital Library

The Advanced Technological Education Television (ATEVT) project develops videos focusing on careers and educational pathways in technology. This particular section of the site features full episodes and video clips about the field of biotechnology, from drug development to agriculture to biomanufacturing. Visitors can learn about the day-to-day lives of practicing technicians, internship opportunities, and the many different community and technical college degree programs to help get started or continue a career in biotechnology.

2012-11-19

178

Unconstrained plastering : all-hexahedral mesh generation via advancing front geometry decomposition (2004-2008).  

SciTech Connect

The generation of all-hexahedral finite element meshes has been an area of ongoing research for the past two decades and remains an open problem. Unconstrained plastering is a new method for generating all-hexahedral finite element meshes on arbitrary volumetric geometries. Starting from an unmeshed volume boundary, unconstrained plastering generates the interior mesh topology without the constraints of a pre-defined boundary mesh. Using advancing fronts, unconstrained plastering forms partially defined hexahedral dual sheets by decomposing the geometry into simple shapes, each of which can be meshed with simple meshing primitives. By breaking from the tradition of previous advancing-front algorithms, which start from pre-meshed boundary surfaces, unconstrained plastering demonstrates that for the tested geometries, high quality, boundary aligned, orientation insensitive, all-hexahedral meshes can be generated automatically without pre-meshing the boundary. Examples are given for meshes from both solid mechanics and geotechnical applications.

Blacker, Teddy Dean; Staten, Matthew L.; Kerr, Robert A.; Owen, Steven James

2010-03-01

179

Advanced liquid-metal reactor IHTS (intermediate heat transport system) and SGS (steam generator system) design  

Microsoft Academic Search

The US Department of Energy (DOE) advanced liquid-metal reactor (ALMR) 1395-MW(electric) power plant design consists of three power blocks. A power block is composed of three identical 471-MW(thermal) reactor modules, each with its own steam generator system (SGS). The three saturated cycle SGSs are headered to provide steam to a common turbine generator system for the power block. The purpose

R. R. Lowrie; A. K. Dhalla; A. Potocnik; M. Hui

1990-01-01

180

Recent advances in nonlinear materials for 5-20 ?m wavelength generation  

Microsoft Academic Search

Recent advances in infrared nonlinear materials have renewed interest in solid-state laser sources for generating radiation in the 5-12 ?m range. We list the properties of several commercially-available far-IR materials, as well as those of two new mixed crystals being developed for non-critically-phase-matched (NCPM) frequency conversion. Generating 8-12 ?m radiation directly from a 1 ?m Nd pump laser in a

P. G. Schunermann

2000-01-01

181

Tennis Video 2.0: A new presentation of sports videos with content separation and rendering  

Microsoft Academic Search

This paper proposes a new method for presenting sports videos. Tennis videos are used as an example for the implementation of a viewing program called as Tennis Video 2.0. For the methods in video analysis, background generation by considering the pixels in temporal and spatial distribution is proposed; foreground segmentation combining automatic trimap generation and matting model is proposed. To

Jui-Hsin Lai; Chieh-Li Chen; Chieh-Chi Kao; Shao-Yi Chien

2011-01-01

182

Feature-based video key frame extraction for low quality video sequences  

Microsoft Academic Search

We present an approach to key frame extraction for structur- ing user generated videos on video sharing websites (e. g. YouTube). Our approach is intended to link existing image search engines to video data. User generated videos are, con- trary to professional material, unstructured, do not follow any fixed rule, and their camera work is poor. Furthermore, the coding quality

Pascal Kelm; Sebastian Schmiedeke; Thomas Sikora

2009-01-01

183

The Next Generation Nuclear Plant Graphite Creep Experiment Irradiation in the Advanced Test Reactor  

Microsoft Academic Search

The United States Department of Energys Next Generation Nuclear Plant (NGNP) Program will be irradiating six gas reactor graphite creep experiments in the Advanced Test Reactor (ATR) located at the Idaho National Laboratory (INL). The ATR has a long history of irradiation testing in support of reactor development and the INL has been designated as the United States Department of

Blaine Grover

2010-01-01

184

LOW NOX COMBUSTION CONCEPTS FOR ADVANCED POWER GENERATION SYSTEMS FIRING LOW-BTU GAS  

EPA Science Inventory

The report gives results of an analysis of several advanced power generating concepts firing low-Btu gasified coal. A combined gas-turbine/steam-cycle power plant with integrated gasifier was the most promising from fuel utilization and economic viewpoints. Two representative com...

185

Modeling heat generation and flow in the Advanced Neutron Source Corrosion Test Loop specimen  

Microsoft Academic Search

A finite difference computer code HEATING5 was used to model heat generation and flow in a typical experiment envisioned for the Advanced Neutron Source Corrosion Test Loop. The electrical resistivity and thermal conductivity of the test specimen were allowed to vary with local temperature, and the corrosion layer thickness was assigned along the length of the specimen in the manner

R. E. Pawel; D. W. Yarbrough

1988-01-01

186

Stator Conductor and Bore Seal Study for the Advanced High-Power Generator Program.  

National Technical Information Service (NTIS)

This report describes the results of a preliminary study to simplify the 36-strand, liquid-cooled stator conductor for the advanced 5-Mw, high-power generator. A specially configured four-strand conductor significantly simplifies the fabrication process w...

A. Druzsba

1986-01-01

187

Monolithic solid oxide fuel cell technology advancement for coal-based power generation  

NASA Astrophysics Data System (ADS)

The objective of this study is to advance materials and fabrication methods to develop a monolithic solid oxide fuel cell (MSOFC) system for coal-based power generation. Focus is on materials research and development (R and D), fabrication process development, cell/stack performance testing and characterization, cost and system analysis, and quality development.

1994-10-01

188

Mitigating the impact of distributed generation on distribution network costs through advanced response options  

Microsoft Academic Search

Nowadays, the presence of distributed generation (DG) is steadily growing. This growth can produce significant effects on the costs incurred by distribution system operators (DSOs). This impact can be particularly negative if DG keeps playing a passive role, not reacting to network conditions. However, the implementation of advanced response options or active network management (ANM) may mitigate the adverse effects

Rafael Cossent; Luis Olmos; T. Go?mez; C. Mateo; P. Fri?as

2010-01-01

189

An advanced electronic load governor for control of micro hydroelectric generation  

Microsoft Academic Search

This paper describes the original research and development of an electronic load governor which is microprocessor-based and incorporates three-phase balancing. The combined study and testing of the transient behaviour of the governor indicated the need for an improved control algorithm. The results of the implementation of the advanced algorithm in the control of micro hydroelectric power generation are presented and

Douglas Henderson

1998-01-01

190

Video document  

NASA Astrophysics Data System (ADS)

The metaphor of film and TV permeates the design of software to support video on the PC. Simply transplanting the non- interactive, sequential experience of film to the PC fails to exploit the virtues of the new context. Video ont eh PC should be interactive and non-sequential. This paper experiments with a variety of tools for using video on the PC that exploits the new content of the PC. Some feature are more successful than others. Applications that use these tools are explored, including primarily the home video archive but also streaming video servers on the Internet. The ability to browse, edit, abstract and index large volumes of video content such as home video and corporate video is a problem without appropriate solution in today's market. The current tools available are complex, unfriendly video editors, requiring hours of work to prepare a short home video, far more work that a typical home user can be expected to provide. Our proposed solution treats video like a text document, providing functionality similar to a text editor. Users can browse, interact, edit and compose one or more video sequences with the same ease and convenience as handling text documents. With this level of text-like composition, we call what is normally a sequential medium a 'video document'. An important component of the proposed solution is shot detection, the ability to detect when a short started or stopped. When combined with a spreadsheet of key frames, the host become a grid of pictures that can be manipulated and viewed in the same way that a spreadsheet can be edited. Multiple video documents may be viewed, joined, manipulated, and seamlessly played back. Abstracts of unedited video content can be produce automatically to create novel video content for export to other venues. Edited and raw video content can be published to the net or burned to a CD-ROM with a self-installing viewer for Windows 98 and Windows NT 4.0.

Davies, Bob; Lienhart, Rainer W.; Yeo, Boon-Lock

1999-08-01

191

Web video recommendation and long tail discovering  

Microsoft Academic Search

Given countless web videos available online, one problem is how to help users find videos to their taste in an efficient way. In this paper, to facilitate userpsilas browsing we propose relevant and exploratory recommendation algorithms utilizing multimodal similarity and contextual network to organize web videos of various topics. Comparison experiments demonstrate proposed approach generates more accurate video relevancy. And

Xiao Wu; Yongdong Zhang; Junbo Guo; Jintao Li

2008-01-01

192

Biotechnology, Video Games, Rapid Prototyping  

NSDL National Science Digital Library

The ATETV project delivers web-based videos to connect students to careers in advanced technology. This episode of ATETV deals with biotechnology, video game design, and rapid prototyping. It can be viewed whole or in three segments: "Biotechnology Student Marina Watanabe on Why She Chose to Attend a Community College," "Video Game Design Student Brent Parsons on the Growing Market for Computer Simulations," and "What is Rapid Prototyping?" The running time for the full episode is 8:29.

2010-12-14

193

Dynamic Behavior in Fingerprint Videos  

Microsoft Academic Search

Traditional fingerprint acquisition is limited to a single image capture and processing. With the advent of faster capture\\u000a hardware, faster processors, and advances in video compression standards, newer systems capture and exploit video signals\\u000a for tasks that are difficult using single images. In this chapter, we propose the use of fingerprint video sequences to investigate\\u000a dynamic behaviors of fingerprints across

Chitra Dorai; Nalini Ratha; Ruud Bolle

194

Salmonella Video  

NSDL National Science Digital Library

Salmonella are a common bacteria associated with food poisoning. Dr. Finlay shows live Salmonella under the microscope to demonstrate how far and fast they can move. This video is also featured on the DVD 2000 and Beyond: Confronting the Microbe Menace, available free from HHMI. This video is 37 seconds in length, and available in MOV (13 MB) and WMV (18 MB). All Infectious Disease videos are located at: http://www.hhmi.org/biointeractive/disease/video.html.

Howard Hughes Medical Institute (Howard Hughes Medical Institute;)

2008-03-28

195

Advanced Subcritical Assistance Radioisotope Thermoelectric Generator: An Imperative Solution for the Future of NASA Exploration  

NASA Astrophysics Data System (ADS)

A new generation of radioisotope thermoelectrical generator is proposed for very long space exploration missions. The Advanced Subcritical Assistance Radioisotope Thermoelectric Generator (ASA-RTG) amplify the power from natural decay of pu-238 by a small subcritical multiplication produced from the small neutron background generated from (?, n) reactions between the ? particles from Pu-238 and beryllium, lithium or other low-Z isotope, extracting the maximum advantage and performance from the precious ? disintegration, and then of the very scarce pu-238. The process is self controlled by the natural decay of Pu-238 with the progressive reduction of the power output (RTG) and additionally and simultaneously compensate by the natural decay of a neutronic poisson which increase simultaneously the subcritical multiplication resulting in a contrary effect, i.e., causing an increase in the power. ASA-RTG is not in conflict with previous RTG, and could fit within the type of Radioisotope Thermoelectric Generator developed for NASA space missions as the Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) and the Advanced Stirling Radioisotope Generator (ASRG).

Arias, F. J.

196

Are They Listening Better? Supporting EFL College Students' DVD Video Comprehension with Advance Organizers in a Multimedia English Course  

ERIC Educational Resources Information Center

|As technology continues to evolve, authentic multimedia-based teaching materials are widely used in the English as a Foreign Language (EFL) classrooms. However, they may lie beyond most language learners' proficiency level. The purpose of this study was to investigate the use of advance organizers in conjunction with the cognitive theory of…

Li, Chen-Hong

2012-01-01

197

Object-Based 2D-to-3D Video Conversion for Effective Stereoscopic Content Generation in 3DTV Applications  

Microsoft Academic Search

Three-dimensional television (3D-TV) has gained in- creasing popularity in the broadcasting domain, as it enables en- hanced viewing experiences in comparison to conventional two-di- mensional (2D) TV. However, its application has been constrained due to the lack of essential contents, i.e., stereoscopic videos. To al- leviate such content shortage, an economical and practical solution is to reuse the huge media

Yue Feng; Jinchang Ren; Jianmin Jiang

2011-01-01

198

"We're from the Generation that was Raised on Television": A Qualitative Exploration of Media Imagery in Elementary Preservice Teachers' Video Production  

ERIC Educational Resources Information Center

|In this article, the authors present their analysis of preservice teachers video production. Twenty-eight students in the first authors Social Foundations of the Elementary Curriculum course produced a 5 to 10 minute video as the major assignment for the class, interviews were conducted with six of the seven video production groups and the videos

Hayes, Michael T.; Petrie, Gina Mikel

2006-01-01

199

Virtual Space Camp Video Game  

NASA Astrophysics Data System (ADS)

With advances in computers, graphics, and especially video games, manned space exploration can become real, by creating a safe, fun learning environment that allows players to explore the solar system from the comfort of their personal computers.

Speyerer, E. J.; Ferrari, K. A.; Lowes, L. L.; Raad, P. E.; Cuevas, T.; Purdy, J. A.

2006-03-01

200

Virtual Space Camp Video Game  

Microsoft Academic Search

With advances in computers, graphics, and especially video games, manned space exploration can become real, by creating a safe, fun learning environment that allows players to explore the solar system from the comfort of their personal computers.

E. J. Speyerer; K. A. Ferrari; L. L. Lowes; P. E. Raad; T. Cuevas; J. A. Purdy

2006-01-01

201

Social Properties of Mobile Video  

NASA Astrophysics Data System (ADS)

Mobile video is now an everyday possibility with a wide array of commercially available devices, services, and content. These new technologies have created dramatic shifts in the way video-based media can be produced, consumed, and delivered by people beyond the familiar behaviors associated with fixed TV and video technologies. Such technology revolutions change the way users behave and change their expectations in regards to their mobile video experiences. Building upon earlier studies of mobile video, this paper reports on a study using diary techniques and ethnographic interviews to better understand how people are using commercially available mobile video technologies in their everyday lives. Drawing on reported episodes of mobile video behavior, the study identifies the social motivations and values underpinning these behaviors that help characterize mobile video consumption beyond the simplistic notion of viewing video only to kill time. This paper also discusses the significance of user-generated content and the usage of video in social communities through the description of two mobile video technology services that allow users to create and share content. Implications for adoption and design of mobile video technologies and services are discussed as well.

Mitchell, April Slayden; O'Hara, Kenton; Vorbau, Alex

202

Video communications and services in the copper loop  

SciTech Connect

There are currently several technologies (including ordinary POTS, voice-band modem, T1, and ISDN Basic Access) available for providing access using the embedded copper loop plant. However, none of these technologies can provide a high bit-rate digital transport capability (1.544 Mb/s) over the existing loop plant. Advances in VLSI technology have made ubiquitous per-line DSL technology economically feasible. Continuing advances in both VLSI implementation and signal processing algorithms are now making it possible to provide the HDSL for a repeaterless T1 capability within CSAs, ADSL for a 1.5-Mb/s transport capability over the nonloaded copper loop plant, and the next-generation ADSL-II for a 3 to 4 Mb/s transmission rate over CSA ranges. Coupled with advances in video compression techniques and recent standards activities in CCITT, these bit rates will allow LECs to provide video communication and services using highly compressed digital video. It will allow the LECs to use their existing embedded loop plant to enter the video market and establish a base of customers. Demand for much higher quality video and multichannel services will grow, which will then accelerate penetration of fiber in the feeder network, and eventually in the distribution network supporting fiber-to-the-curb systems. 12 refs., 6 figs.

Hsing, T.R. (Signal Processing Systems Research Group, Morristown, NJ (United States)); Chengtie Chen; Bellisio, J.A. (Bellcore, Red Bank, NJ (United States))

1993-01-01

203

Skin Paths for Contextual Flagging Adult Videos  

Microsoft Academic Search

User generated video content has become increasingly popular, with a large number of internet video sharing portals appearing.\\u000a Many portals wish to rapidly find and remove objectionable material from the uploaded videos. This paper considers the flagging\\u000a of uploaded videos as potentially objectionable due to sexual content of an adult nature. Such videos are often characterized\\u000a by the presence of

Julian Stöttinger; Allan Hanbury; Christian Liensberger; Rehanullah Khan

2009-01-01

204

Advancements in reprogramming strategies for the generation of induced pluripotent stem cells.  

PubMed

Direct reprogramming of somatic cells into induced pluripotent stem (iPS) cells has emerged as an invaluable method for generating patient-specific stem cells of any lineage without the use of embryonic materials. Following the first reported generation of iPS cells from murine fibroblasts using retroviral transduction of a defined set of transcription factors, various new strategies have been developed to improve and refine the reprogramming technology. Recent developments provide optimism that the generation of safe iPS cells without any genomic modification could be derived in the near future for the use in clinical settings. This review summarizes current and evolving strategies in the generation of iPS cells, including types of somatic cells for reprogramming, variations of reprogramming genes, reprogramming methods, and how the advancement iPS cells technology can lead to the future success of reproductive medicine. PMID:21384252

Lai, Mei I; Wendy-Yeo, Wai Yeng; Ramasamy, Rajesh; Nordin, Norshariza; Rosli, Rozita; Veerakumarasivam, Abhi; Abdullah, Syahril

2011-03-09

205

Selection of the reference steam generator for the advanced liquid metal reactor  

SciTech Connect

In February 2006 President Bush announced the Advanced Energy Initiative, which included the Department of Energy's (DOE) Global Nuclear Energy Partnership (GNEP). GNEP has seven broad goals; one of the major elements being to develop and deploy advanced nuclear fuel recycling technology that includes consuming spent nuclear fuel in an Advanced Recycling Reactor (ARR). DOE is contemplating accelerating the deployment of these technologies to achieve the construction of a commercial scale application of these technologies. DOE now defines this approach as 'two simultaneous tracks: (1) deployment of commercial scale facilities for which advanced technologies are available now or in the near future, and (2) further research and development of transmutation fuels technologies'. GEHitachi Nuclear Energy Americas LLC (GHNEA) believes an integrated technical solution is achievable in the near term to accelerate the commercial demonstration of GNEP infrastructure. The GHNEA ARR concept involves a single integrated recycling facility sized to service a single reactor module ARR capable of destroying light water and fast reactor sourced actinides. This paper describes the bases and rationale behind the selection of the helical coil steam generator (HCSG) as the reference steam generator concept for the ALMR and S-PRISM reactor concepts. (authors)

Loewen, Eric P.; Boardman, Chuck [GE-Hitachi Nuclear Energy Americas LLC, Wilmington, NC 28401 (United States)

2007-07-01

206

Virtual Surgery (Video Recording).  

National Technical Information Service (NTIS)

Physical description: 1 VHS video; 1/2 in.; col.; sd.; 7 mins.; standard playback. Our goal is to develop the technological foundation of advanced haptic systems and to assemble that technology into a useful surgical simulator. The surgical simulator we e...

1998-01-01

207

Recent Patents and Advances in the Next-Generation Sequencing Technologies  

Microsoft Academic Search

We are now witnessing a new genomic revolution due to the arrival and continued advancements in the next- generation high-throughput sequencing technologies, which encompass sequencing by synthesis including fluorescent in situ sequencing (FISSEQ) and pyrosequencing, sequencing by ligation including using polony amplification and supported oligonucleotide detection (SOLiD), sequencing by hybridization in combination with sequencing-by-ligation and nanopore technology, nanopore sequencing and

Biaoyang Lin; Jun Wang; Yin Cheng

2008-01-01

208

(The status of advanced combustion for electric power generation from coal)  

Microsoft Academic Search

The traveler was seconded to the IEA-Coal Research at its London, U.K. office, for the purpose of writing a report covering the status of advanced combustion for electric power generation from coal. The Executive Committee of the IEA-Coal Research, consisting of a representative from each of the 14 member countries, are currently reviewing the report, which was completed on time.

1989-01-01

209

Advisor 2.0: A Second-Generation Advanced Vehicle Simulator for Systems Analysis  

Microsoft Academic Search

The National Renewable Energy Laboratory has recently publicly released its second-generation advanced vehicle simulator called ADVISOR 2.0. This software program was initially developed four years ago, and after several years of in-house usage and evolution, the tool is now available to the public through a new vehicle systems analysis World Wide Web page. ADVISOR has been applied to many different

K. Wipke; M. Cuddy; D. Bharathan; S. Burch; V. Johnson; A. Markel; S. Sprik

1999-01-01

210

Dynamic behavior analysis in compressed fingerprint videos  

Microsoft Academic Search

Traditional fingerprint acquisition is limited to single-image capture and processing. With the advent of faster capture hardware, faster processors, and advances in video compression standards, newer systems can capture and exploit video signals for tasks that are difficult using a single image. We propose the use of fingerprint video sequences to investigate detecting two aspects of the dynamic behavior of

Chitra Dorai; Nalini K. Ratha; Ruud M. Bolle

2004-01-01

211

Video motion detection for physical security applications  

Microsoft Academic Search

Physical security specialists have been attracted to the concept of video motion detection for several years. Claimed potential advantages included additional benefit from existing video surveillance systems, automatic detection, improved performance compared to human observers, and cost-effectiveness. In recent years, significant advances in image-processing dedicated hardware and image analysis algorithms and software have accelerated the successful application of video motion

1990-01-01

212

Advanced glycation end products enhance reactive oxygen and nitrogen species generation in neutrophils in vitro.  

PubMed

Increased oxidative stress (OS) in diabetes mellitus is one of the major factors leading to diabetic pathology. However, the mediators and mechanism that provoke OS in diabetes is not fully understood, and it is possible that accumulation of advanced glycation end products (AGEs) formed secondary to hyperglycemic conditions may incite circulating polymorphonuclear neutrophils (PMN) to generate reactive oxygen species (ROS). In this report, we aim to investigate the effect of AGE on reactive oxygen and nitrogen species generation and subsequent OS in PMN. AGE-HSA exert dose- and time-dependent enhancement of ROS and reactive nitrogen intermediates (RNI) generation by PMN. Increased ROS and RNI generation were found to be mediated through the upregulation of NADPH oxidase and inducible nitric oxide synthase (iNOS), respectively, as evident from the fact that AGE-treated neutrophils failed to generate ROS and RNI in presence of diphenyleneiodonium, a flavoprotein inhibitor for both enzymes. Further increased generation of ROS and RNI ceased when the cells were incubated with anti-RAGE antibody suggesting the involvement of AGE-RAGE interaction. Also increased malondialdehyde (MDA) and protein carbonyl formation in AGE-exposed PMN suggest induction of OS by AGE. This study provides evidence that AGEs may play a key role in the induction of oxidative stress through the augmentation of PMN-mediated ROS and RNI generation and this may be in part responsible for development of AGE-induced diabetic pathology. PMID:22048812

Bansal, Savita; Siddarth, Manushi; Chawla, Diwesh; Banerjee, Basu D; Madhu, S V; Tripathi, Ashok K

2011-11-03

213

The multispectral advanced volumetric real-time imaging compositor for real-time distributed scene generation  

NASA Astrophysics Data System (ADS)

AMRDEC has developed the Multi-spectral Advanced Volumetric Real-time Imaging Compositor (MAVRIC) prototype for distributed real-time hardware-in-the-loop (HWIL) scene generation. MAVRIC is a dynamic object-based energy conserved scene compositor that can seamlessly convolve distributed scene elements into temporally aligned physicsbased scenes for enhancing existing AMRDEC scene generation codes. The volumetric compositing process accepts input independent of depth order. This real-time compositor framework is built around AMRDEC's ContinuumCore API which provides the common messaging interface leveraging the Neutral Messaging Language (NML) for local, shared memory, reflective memory, network, and remote direct memory access (RDMA) communications and the Joint Signature Image Generator (JSIG) that provides energy conserved scene component interface at each render node. This structure allows for a highly scalable real-time environment capable of rendering individual objects at high fidelity while being considerate of real-time hardware-in-the-loop concerns, such as latency. As such, this system can be scaled to handle highly complex detailed scenes such as urban environments. This architecture provides the basis for common scene generation as it provides disparate scene elements to be calculated by various phenomenology codes and integrated seamlessly into a unified composited environment. This advanced capability is the gateway to higher fidelity scene generation such as ray-tracing. The high speed interconnects using PCI Express and InfiniBand were examined to support distributed scene generation whereby the scene graph, associated phenomenology, and the scene elements can be dynamically distributed across multiple high performance computing assets to maximize system performance.

Morris, Joseph W.; Ballard, Gary H.; Bunfield, Dennis H.; Peddycoart, Thomas E.; Trimble, Darian E.

2011-05-01

214

Informative-frame filtering in endoscopy videos  

NASA Astrophysics Data System (ADS)

Advances in video technology are being incorporated into today"s healthcare practice. For example, colonoscopy is an important screening tool for colorectal cancer. Colonoscopy allows for the inspection of the entire colon and provides the ability to perform a number of therapeutic operations during a single procedure. During a colonoscopic procedure, a tiny video camera at the tip of the endoscope generates a video signal of the internal mucosa of the colon. The video data are displayed on a monitor for real-time analysis by the endoscopist. Other endoscopic procedures include upper gastrointestinal endoscopy, enteroscopy, bronchoscopy, cystoscopy, and laparoscopy. However, a significant number of out-of-focus frames are included in this type of videos since current endoscopes are equipped with a single, wide-angle lens that cannot be focused. The out-of-focus frames do not hold any useful information. To reduce the burdens of the further processes such as computer-aided image processing or human expert"s examinations, these frames need to be removed. We call an out-of-focus frame as non-informative frame and an in-focus frame as informative frame. We propose a new technique to classify the video frames into two classes, informative and non-informative frames using a combination of Discrete Fourier Transform (DFT), Texture Analysis, and K-Means Clustering. The proposed technique can evaluate the frames without any reference image, and does not need any predefined threshold value. Our experimental studies indicate that it achieves over 96% of four different performance metrics (i.e. precision, sensitivity, specificity, and accuracy).

An, Yong Hwan; Hwang, Sae; Oh, JungHwan; Lee, JeongKyu; Tavanapong, Wallapak; de Groen, Piet C.; Wong, Johnny

2005-04-01

215

Technologies for CO{sub 2}-capture from advanced power-generation systems  

SciTech Connect

The US power-generation industry generated about 1.5 billion metric tons of CO{sub 2} in 1990, with over 95% of that CO{sub 2} being generated by coal-fired utility boilers. Extensive use of coal for power generation is expected to continue for many years to come. Therefore, should capture and sequestration of CO{sub 2} be necessary, coal-fired power plants are likely to be primary targets for CO{sub 2} capture. This paper discusses opportunities and techniques for the capture of CO{sub 2} from the advanced power-generation systems that appear to be the leading candidates for widespread commercialization in the next two decades: integrated coal gasification-combined cycle (IGCC) and fuel cells. Retrofitting of conventional power plants for burning coal with O{sub 2} to facilitate CO{sub 2} capture was also investigated. A brief discussion of the impact of the CO{sub 2}-capture technology on the cost of power generation is also presented. Research and development needs of the CO{sub 2}-capture technologies are also identified. The results indicate that CO{sub 2} recovery from IGCC and fuel-cell plants is less complicated, less energy-intensive, and less costly than its recovery from conventional coal-fired power stations.

Wolsky, A.M.; Daniels, E.J.; Jody, B.J.

1993-06-01

216

GLOBE Videos  

NSDL National Science Digital Library

This collection of videos, produced by Global Learning and Observations to Benefit the Environment (GLOBE), features overviews of the GLOBE program as well as a variety of science topics. These include Earth as a system, atmospheric science, water chemistry, soil science, land cover, and remote sensing. The videos can be downloaded or viewed directly from the website and are accompanied by written scripts.

The GLOBE Program, University Corporation for Atmospheric Research (UCAR)

217

Advanced natural gas-fired turbine system utilizing thermochemical recuperation and/or partial oxidation for electricity generation, greenfield and repowering applications.  

National Technical Information Service (NTIS)

The performance, economics and technical feasibility of heavy duty combustion turbine power systems incorporating two advanced power generation schemes have been estimated to assess the potential merits of these advanced technologies. The advanced technol...

1997-01-01

218

The Advanced Light Source: A third-generation Synchrotron Radiation Source  

SciTech Connect

The Advanced Light Source (ALS) at the E.O. Lawrence Berkeley National Laboratory (Berkeley Lab) of the University of California is a ''third-generation'' synchrotron radiation source optimized for highest brightness at ultraviolet and soft x-ray photon energies. It also provides world-class performance at hard x-ray photon energies. Berkeley Lab operates the ALS for the United States Department of Energy as a national user facility that is available 24 hours/day around the year for research by scientists from industrial, academic, and government laboratories primarily from the United States but also from abroad.

Robinson, Arthur L.

2002-08-14

219

Monolithic solid oxide fuel cell technology advancement for coal-based power generation  

SciTech Connect

The program is conducted by a team consisting of AiResearch Los Angeles Division of Allied-Signal Aerospace Company and Argonne National Laboratory (ANL). The objective of the program is to advance materials and fabrication methodologies to develop a monolithic solid oxide fuel cell (MSOFC) system capable of meeting performance, life, and cost goals for coal-based power generation. The program focuses on materials research and development, fabrication process development, cell/stack performance testing and characterization, cost and system analysis, and quality development.

Not Available

1992-04-14

220

Monolithic solid oxide fuel cell technology advancement for coal- based power generation. Quarterly report, December 1991  

SciTech Connect

The program is conducted by a team consisting of AiResearch Los Angeles Division of Allied-Signal Aerospace Company and Argonne National Laboratory (ANL). The objective of the program is to advance materials and fabrication methodologies to develop a monolithic solid oxide fuel cell (MSOFC) system capable of meeting performance, life, and cost goals for coal-based power generation. The program focuses on materials research and development, fabrication process development, cell/stack performance testing and characterization, cost and system analysis, and quality development.

Not Available

1992-01-15

221

Monolithic solid oxide fuel cell technology advancement for coal- based power generation  

SciTech Connect

The program is conducted by a team consisting of AiResearch Los Angeles Division of Allied-Signal Aerospace Company and Argonne National Laboratory (ANL). The objective of the program is to advance materials and fabrication methodologies to develop a monolithic solid oxide fuel cell (MSOFC) system capable of meeting performance, life, and cost goals for coal-based power generation. The program focuses on materials research and development, fabrication process development, cell/stack performance testing and characterization, cost and system analysis, and quality development.

Not Available

1992-01-15

222

Video Games and Classical Antiquity  

Microsoft Academic Search

A number of currently popular video games focus on the ancient world, and the experiences that the generation of students now entering high school and college have had playing such games is enormously important in shaping their view of ancient Greece and Rome. The purpose of this article is to suggest ways in which video games might be used as

Dominic Machado; Paul Christesen

2010-01-01

223

Video Games and Classical Antiquity  

Microsoft Academic Search

:A number of currently popular video games focus on the ancient world, and the experiences that the generation of students now entering high school and college have had playing such games is enormously important in shaping their view of ancient Greece and Rome. The purpose of this article is to suggest ways in which video games might be used as

Dominic Machado; Paul Christesen

2010-01-01

224

Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology (External Review Draft)  

EPA Science Inventory

EPA is releasing a draft report "Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology" that explores how new molecular, computational and systems biology data and approaches (together called "NexGen") could better info...

225

Metadata in video databases  

Microsoft Academic Search

Video is composed of audio-visual information. Providing content based access to video data is essential for the sucessful integration of video into computers. Organizing video for content based access requires the use of video metadata. This paper explores the nature video metadata. A data model for video databases is presented based on a study of the applications of video, the

Ramesh Jain; Arun Hampapur

1994-01-01

226

Secure authenticated video equipment  

SciTech Connect

In the verification technology arena, there is a pressing need for surveillance and monitoring equipment that produces authentic, verifiable records of observed activities. Such a record provides the inspecting party with confidence that observed activities occurred as recorded, without undetected tampering or spoofing having taken place. The secure authenticated video equipment (SAVE) system provides an authenticated series of video images of an observed activity. Being self-contained and portable, it can be installed as a stand-alone surveillance system or used in conjunction with existing monitoring equipment in a non-invasive manner. Security is provided by a tamper-proof camera enclosure containing a private, electronic authentication key. Video data is transferred communication link consisting of a coaxial cable, fiber-optic link or other similar media. A video review station, located remotely from the camera, receives, validates, displays and stores the incoming data. Video data is validated within the review station using a public key, a copy of which is held by authorized panics. This scheme allows the holder of the public key to verify the authenticity of the recorded video data but precludes undetectable modification of the data generated by the tamper-protected private authentication key.

Doren, N.E.

1993-07-01

227

Advanced technologies for co-processing fossil and biomass resources for transportation fuels and power generation  

SciTech Connect

Over the past few decades, a number of processes have been proposed or are under development for coprocessing fossil fuel and biomass for transportation fuels and power generation. The paper gives a brief description of the following processes: the Hydrocarb system for converting biomass and other carbonaceous fuels to elemental carbon and hydrogen, methane or methanol; the Hynol process where the second step of the Hydrocarb process is replaced with a methane steam reformer to convert methane to CO and H{sub 2}S without deposition of carbon; the Carnol process where CO{sub 2} from coal and the biomass power plants is reacted with hydrogen to produce methanol; and advanced biomass high efficiency power generator cycle where a continuous plasma methane decomposition reactor (PDR) is used with direct carbon fuel cell to produce power and carbon and hydrogen. 13 refs., 5 figs., 2 tabs.

Steinberg, M.; Dong, Y. [Brookhaven National Lab., Upton, NY (United States)

2004-07-01

228

Advanced eddy current test signal analysis for steam generator tube defect classification and characterization  

NASA Astrophysics Data System (ADS)

Eddy Current Testing (ECT) is a Non-Destructive Examination (NDE) technique that is widely used in power generating plants (both nuclear and fossil) to test the integrity of heat exchanger (HX) and steam generator (SG) tubing. Specifically for this research, laboratory-generated, flawed tubing data were examined. The purpose of this dissertation is to develop and implement an automated method for the classification and an advanced characterization of defects in HX and SG tubing. These two improvements enhanced the robustness of characterization as compared to traditional bobbin-coil ECT data analysis methods. A more robust classification and characterization of the tube flaw in-situ (while the SG is on-line but not when the plant is operating), should provide valuable information to the power industry. The following are the conclusions reached from this research. A feature extraction program acquiring relevant information from both the mixed, absolute and differential data was successfully implemented. The CWT was utilized to extract more information from the mixed, complex differential data. Image Processing techniques used to extract the information contained in the generated CWT, classified the data with a high success rate. The data were accurately classified, utilizing the compressed feature vector and using a Bayes classification system. An estimation of the upper bound for the probability of error, using the Bhattacharyya distance, was successfully applied to the Bayesian classification. The classified data were separated according to flaw-type (classification) to enhance characterization. The characterization routine used dedicated, flaw-type specific ANNs that made the characterization of the tube flaw more robust. The inclusion of outliers may help complete the feature space so that classification accuracy is increased. Given that the eddy current test signals appear very similar, there may not be sufficient information to make an extremely accurate (>95%) classification or an advanced characterization using this system. It is necessary to have a larger database fore more accurate system learning.

McClanahan, James Patrick

229

Use of MODIS 16-day albedos in generating GOES-R advanced baseline imager imagery  

NASA Astrophysics Data System (ADS)

Advanced preparation for satellite data from the next-generation GOES-R advanced baseline imager (ABI) is supported by coupling high resolution mesoscale and radiative transfer numerical models. Calculated GOES-R ABI imagery is produced in a two-step process. First, a mesoscale model is used to simulate an event over a region with 400 m horizontal grid spacings; secondly, output from the mesoscale model is used as input to a second model that calculates top of the atmosphere radiances at selected GOES-R ABI wavelengths. Such radiances or brightness temperatures are referred to as synthetic imagery. In order for the synthetic imagery to contain realistic horizontal variability of values of surface reflectance at wavelengths from 0.44 to 2.25 ?m, MODIS 16-day albedos are incorporated in the radiative transfer calculations. One application of synthetic GOES-R imagery is that of algorithm development and testing. Algorithms may focus on, but are not limited to, the detection and retrieval of smoke, volcanic ash, fires, blowing dust, and the state of surface physiography. Proper identification of such features is, at times, dependent on the horizontal variability of surface reflectance values. MODIS 16-day spectrally dependent albedos are a valuable dataset in aiding the generation of synthetic GOES-R imagery.

Grasso, Lewis; Hillger, Donald W.; Schaaf, Crystal Barker; Wang, Zhuosen; Brummer, Renate; DeMaria, Robert

2013-01-01

230

Advanced glycation end products delay corneal epithelial wound healing through reactive oxygen species generation.  

PubMed

Delayed healing of corneal epithelial wounds is a serious complication in diabetes. Advanced glycation end products (AGEs) are intimately associated with the diabetic complications and are deleterious to the wound healing process. However, the effect of AGEs on corneal epithelial wound healing has not yet been evaluated. In the present study, we investigated the effect of AGE-modified bovine serum albumin (BSA) on corneal epithelial wound healing and its underlying mechanisms. Our data showed that AGE-BSA significantly increased the generation of intracellular ROS in telomerase-immortalized human corneal epithelial cells. However, the generation of intracellular ROS was completely inhibited by antioxidant N-acetylcysteine (NAC), anti-receptor of AGEs (RAGE) antibodies, or the inhibitor of NADPH oxidase. Moreover, AGE-BSA increased NADPH oxidase activity and protein expression of NADPH oxidase subunits, p22phox and Nox4, but anti-RAGE antibodies eliminated these effects. Furthermore, prevention of intracellular ROS generation using NAC or anti-RAGE antibodies rescued AGE-BSA-delayed epithelial wound healing in porcine corneal organ culture. In conclusion, our results demonstrated that AGE-BSA impaired corneal epithelial wound healing ex vivo. AGE-BSA increased intracellular ROS generation through NADPH oxidase activation, which accounted for the delayed corneal epithelial wound healing. These results may provide better insights for understanding the mechanism of delayed healing of corneal epithelial wounds in diabetes. PMID:23955437

Shi, Long; Chen, Hongmei; Yu, Xiaoming; Wu, Xinyi

2013-08-18

231

47 CFR 79.3 - Video description of video programming.  

Code of Federal Regulations, 2012 CFR

...including consumer-generated media. (5) Video programming...programming distributor. (8) Children's Programming. Television programming directed at children 16 years of age and under...during prime time or on children's programming,...

2012-10-01

232

Video classification using speaker identification  

NASA Astrophysics Data System (ADS)

Video content characterization is a challenging problem in video databases. The aim of such characterization is to generate indices that can describe a video clip in terms of objects and their actions in the clip. Generally, such indices are extracted by performing image analysis on the video clips. Many such indices can also be generated by analyzing the embedded audio information of video clips. Indices pertaining to context, scene emotion, and actors or characters present in a video clip appear especially suitable for generation via audio analysis techniques of keyword spotting, and speech and speaker recognition. In this paper, we examine the potential of speaker identification techniques for characterizing video clips in terms of actors present in them. We describe a three-stage processing system consisting of a shot boundary detection stage, an audio classification stage, and a speaker identification stage to determine the presence of different actors in isolated shots. Experimental results using the movie A Few Good Men are presented to show the efficacy of speaker identification for labeling video clips in terms of persons present in them.

Patel, Nilesh V.; Sethi, Ishwar K.

1997-01-01

233

Magnetic Braking: A Video Analysis  

NASA Astrophysics Data System (ADS)

This paper presents a laboratory exercise that introduces students to the use of video analysis software and the Lenz's law demonstration. Digital techniques have proved to be very useful for the understanding of physical concepts. In particular, the availability of affordable digital video offers students the opportunity to actively engage in kinematics in introductory-level physics.1,2 By using digital videos frame advance features and ``marking'' the position of a moving object in each frame, students are able to more precisely determine the position of an object at much smaller time increments than would be possible with common time devices. Once the student collects data consisting of positions and times, these values may be manipulated to determine velocity and acceleration. There are a variety of commercial and free applications that can be used for video analysis. Because the relevant technology has become inexpensive, video analysis has become a prevalent tool in introductory physics courses.

Molina-Bolívar, J. A.; Abella-Palacios, A. J.

2012-10-01

234

Video flowmeter  

DOEpatents

A video flowmeter is described that is capable of specifying flow nature and pattern and, at the same time, the quantitative value of the rate of volumetric flow. An image of a determinable volumetric region within a fluid containing entrained particles is formed and positioned by a rod optic lens assembly on the raster area of a low-light level television camera. The particles are illuminated by light transmitted through a bundle of glass fibers surrounding the rod optic lens assembly. Only particle images having speeds on the raster area below the raster line scanning speed may be used to form a video picture which is displayed on a video screen. The flowmeter is calibrated so that the locus of positions of origin of the video picture gives a determination of the volumetric flow rate of the fluid.

Lord, D.E.; Carter, G.W.; Petrini, R.R.

1981-06-10

235

Video flowmeter  

DOEpatents

A video flowmeter is described that is capable of specifying flow nature and pattern and, at the same time, the quantitative value of the rate of volumetric flow. An image of a determinable volumetric region within a fluid containing entrained particles is formed and positioned by a rod optic lens assembly on the raster area of a low-light level television camera. The particles are illuminated by light transmitted through a bundle of glass fibers surrounding the rod optic lens assembly. Only particle images having speeds on the raster area below the raster line scanning speed may be used to form a video picture which is displayed on a video screen. The flowmeter is calibrated so that the locus of positions of origin of the video picture gives a determination of the volumetric flow rate of the fluid. 4 figs.

Lord, D.E.; Carter, G.W.; Petrini, R.R.

1983-08-02

236

Video flowmeter  

DOEpatents

A video flowmeter is described that is capable of specifying flow nature and pattern and, at the same time, the quantitative value of the rate of volumetric flow. An image of a determinable volumetric region within a fluid (10) containing entrained particles (12) is formed and positioned by a rod optic lens assembly (31) on the raster area of a low-light level television camera (20). The particles (12) are illuminated by light transmitted through a bundle of glass fibers (32) surrounding the rod optic lens assembly (31). Only particle images having speeds on the raster area below the raster line scanning speed may be used to form a video picture which is displayed on a video screen (40). The flowmeter is calibrated so that the locus of positions of origin of the video picture gives a determination of the volumetric flow rate of the fluid (10).

Lord, David E. (Livermore, CA); Carter, Gary W. (Livermore, CA); Petrini, Richard R. (Livermore, CA)

1983-01-01

237

Video Visuals.  

ERIC Educational Resources Information Center

|A good training video has a focused objective, well-written script, clear sound track, and visuals that enhance the communication of the message. Good visuals depend on lighting, camera angles, continuity, and motivation for the scene. (SK)|

Schleger, Peter R.

1991-01-01

238

Advanced Soldier Thermoelectric Power System for Power Generation from Battlefield Heat Sources  

SciTech Connect

The U.S. military uses large amounts of fuel during deployments and battlefield operations. This project sought to develop a lightweight, small form-factor, soldier-portable advanced thermoelectric (TE) system prototype to recover and convert waste heat from various deployed military equipment (i.e., diesel generators/engines, incinerators, vehicles, and potentially mobile kitchens), with the ultimate purpose of producing power for soldier battery charging, advanced capacitor charging, and other battlefield power applications. The technical approach employed microchannel technology, a unique “power panel” approach to heat exchange/TE system integration, and newly-characterized LAST (lead-antimony-silver-telluride) and LASTT (lead-antimony-silver-tin-telluride) TE materials segmented with bismuth telluride TE materials in designing a segmented-element TE power module and system. This project researched never-before-addressed system integration challenges (thermal expansion, thermal diffusion, electrical interconnection, thermal and electrical interfaces) of designing thin “power panels” consisting of alternating layers of thin, microchannel heat exchangers (hot and cold) sandwiching thin, segmented-element TE power generators. The TE properties, structurally properties, and thermal fatigue behavior of LAST and LASTT materials were developed and characterized such that the first segmented-element TE modules using LAST / LASTT materials were fabricated and tested at hot-side temperatures = 400 °C and cold-side temperatures = 40 °C. LAST / LASTT materials were successfully segmented with bismuth telluride and electrically interconnected with diffusion barrier materials and copper strapping within the module electrical circuit. A TE system design was developed to produce 1.5-1.6 kW of electrical energy using these new TE modules from the exhaust waste heat of 60-kW Tactical Quiet Generators as demonstration vehicles.

Hendricks, Terry J.; Hogan, Tim; Case, Eldon D.; Cauchy, Charles J.

2010-09-01

239

Advanced Glycation Endproducts on Stored Erythrocytes increase Endothelial Reactive Oxygen Species Generation through Interaction with RAGE  

PubMed Central

Background Recent evidence suggests that storage induced alterations of the red blood cell (RBC) are associated with adverse consequences in susceptible hosts. As RBCs have been shown to form Advanced Glycation Endproducts (AGEs) following increased oxidative stress and under pathologic conditions, we examined whether stored RBCs undergo modification with the specific AGE, N-(Carboxymethyl)lysine (N?-CML) during standard blood banking conditions. Study Design and Methods Purified, fresh RBCs from volunteers were compared to stored RBCs (d 35–42 old) obtained from the Blood Bank. N?-CML formation was quantified using a competitive enzyme-linked immunosorbent assay. The receptor for advanced glycation end-products (RAGE) was detected in human pulmonary microvascular endothelial cells by real-time PCR, western blotting, and flow cytometry. Intracellular reactive oxygen species (ROS) generation was measured by the use of 5-(and 6-)chloromethyl-2',7'-dichlorodihydrofluorescein diacetate, acetyl ester based assays. Results Stored RBCs showed increased surface N?-CML formation when compared with fresh RBCs. Human Pulmonary Microvascular Endothelial Cells (HMVEC-L) showed detectable surface RAGE expression constitutively. When compared to fresh RBCs, stored RBCs triggered increased intracellular ROS generation in both Human Umbilical Vein Endothelial Cells (HUVEC) and Human Pulmonary Microvascular Endothelial Cells (HMVEC-L). RBC-induced endothelial ROS generation was attenuated in the presence of soluble RAGE (sRAGE) or RAGE blocking antibody. Conclusion The formation of the AGE N?-CML on the surface of stored RBCs is one functional consequence of the storage lesion. AGE-RAGE interactions may be one mechanism by which transfused RBCs cause endothelial cell damage.

Mangalmurti, Nilam S; Chatterjee, Shampa; Cheng, Guanjun; Andersen, Emily; Mohammed, Aishat; Siegel, Donald L; Schmidt, Ann Marie; Albelda, Steven M; Lee, Janet S

2010-01-01

240

SCME Videos by Students  

NSDL National Science Digital Library

The Southwest Center for Microsystems Education is a Regional Advanced Technology Education Center funded in part by the National Science Foundation. This page contains a collection of videos made by students on MEMS related topics. The topics include a virtual cleanroom tour, gowning procedures, and using personal protective equipment. Visitors are encouraged to create an account and login in order to access the full set of resources.

2011-10-11

241

Content-based analysis of news video  

NASA Astrophysics Data System (ADS)

In this paper, we present a schema for content-based analysis of broadcast news video. First, we separate commercials from news using audiovisual features. Then, we automatically organize news programs into a content hierarchy at various levels of abstraction via effective integration of video, audio, and text data available from the news programs. Based on these news video structure and content analysis technologies, a TV news video Library is generated, from which users can retrieve definite news story according to their demands.

Yu, Junqing; Zhou, Dongru; Liu, Huayong; Cai, Bo

2001-09-01

242

Automatic composition of broadcast sports video  

Microsoft Academic Search

This study examines an automatic broadcast soccer video composition system. The research is important as the ability to automatically\\u000a compose broadcast sports video will not only improve broadcast video generation efficiency, but also provides the possibility\\u000a to customize sports video broadcasting. We present a novel approach to the two major issues required in the system’s implementation,\\u000a specifically the camera view

Jinjun Wang; Changsheng Xu; Engsiong Chng; Hanqing Lu; Qi Tian

2008-01-01

243

Video-based crowd synthesis.  

PubMed

As a controllable medium, video-realistic crowds are important for creating the illusion of a populated reality in special effects, games, and architectural visualization. While recent progress in simulation and motion captured-based techniques for crowd synthesis has focused on natural macroscale behavior, this paper addresses the complementary problem of synthesizing crowds with realistic microscale behavior and appearance. Example-based synthesis methods such as video textures are an appealing alternative to conventional model-based methods, but current techniques are unable to represent and satisfy constraints between video sprites and the scene. This paper describes how to synthesize crowds by segmenting pedestrians from input videos of natural crowds and optimally placing them into an output video while satisfying environmental constraints imposed by the scene. We introduce crowd tubes, a representation of video objects designed to compose a crowd of video billboards while avoiding collisions between static and dynamic obstacles. The approach consists of representing crowd tube samples and constraint violations with a conflict graph. The maximal independent set yields a dense constraint-satisfying crowd composition. We present a prototype system for the capture, analysis, synthesis, and control of video-based crowds. Several results demonstrate the system's ability to generate videos of crowds which exhibit a variety of natural behaviors. PMID:24029912

Flagg, Matthew; Rehg, James M

2013-11-01

244

Transcriptomic Analysis of Staphylococcus aureus Using Microarray and Advanced Next-Generation RNA-seq Technologies.  

PubMed

The transcriptome has shown tremendous potential for the comprehensive investigation of gene expression profiles and transcriptional levels in comparative biology, the identification of regulatory mechanism of transcriptional regulators, and the evaluation of target gene for developing new chemotherapeutic agents, vaccine, and diagnostic methods. The traditional microarray and advanced next-generation RNA sequencing technologies (RNA-seq) provide powerful and effective tools for the determination of the transcriptome of bacterial cells. In this chapter, we provide a detailed protocol for scientists who want to investigate gene expression profiles by performing microarray and/or RNA-seq analysis, including different RNA purification methods, mRNA enrichment, decontamination, cDNA synthesis, fragmentation, biotin labeling for hybridization using Affymetrix Staphylococcus aureus chips, quantitative real-time reverse transcription PCR, and RNA-seq data analysis. PMID:24085699

Lei, Ting; Becker, Aaron; Ji, Yinduo

2014-01-01

245

Second Generation Advanced Reburning for High Efficiency NO(x) Control.  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning which has the potential to achieve 90+% NO{sub x} control in coal fired boilers at a significantly lower cost than SCR. The eighth reporting period (July 1 - September 30, 1997) included experimental and final report preparation activities. Experiments on high-temperature reactions of sodium carbonate were completed at the University of Texas in Austin. This study revealed that sodium can affect NO{sub x} concentrations under both fuel-rich and fuel-lean conditions. The engineering design conducted during the previous reporting period was converted into retrofit hardware for the AR-Lean system and initial test results are presented and discussed. All information presented in this report is in summary form since a Draft Final project report was submitted to DOE FETC by July 31, 1997.

Zamansky, V.M.; Folsom, B.A.

1997-10-27

246

Battery-free Wireless Sensor Network For Advanced Fossil-Fuel Based Power Generation  

SciTech Connect

This report summarizes technical progress achieved during the project supported by the Department of Energy under Award Number DE-FG26-07NT4306. The aim of the project was to conduct basic research into battery-free wireless sensing mechanism in order to develop novel wireless sensors and sensor network for physical and chemical parameter monitoring in a harsh environment. Passive wireless sensing platform and five wireless sensors including temperature sensor, pressure sensor, humidity sensor, crack sensor and networked sensors developed and demonstrated in our laboratory setup have achieved the objective for the monitoring of various physical and chemical parameters in a harsh environment through remote power and wireless sensor communication, which is critical to intelligent control of advanced power generation system. This report is organized by the sensors developed as detailed in each progress report.

Yi Jia

2011-02-28

247

Monolithic solid oxide fuel cell technology advancement for coal-based power generation  

NASA Astrophysics Data System (ADS)

This project has successfully advanced the technology for MSOFC's for coal-based power generation. Major advances include: tape-calendering processing technology, leading to 3X improved performance at 1000 C; stack materials formulations and designs with sufficiently close thermal expansion match for no stack damage after repeated thermal cycling in air; electrically conducting bonding with excellent structural robustness; and sealants that form good mechanical seals for forming manifold structures. A stack testing facility was built for high-spower MSOFC stacks. Comprehensive models were developed for fuel cell performance and for analyzing structural stresses in multicell stacks and electrical resistance of various stack configurations. Mechanical and chemical compatibility properties of fuel cell components were measured; they show that the baseline Ca-, Co-doped interconnect expands and weakens in hydrogen fuel. This and the failure to develop adequate sealants were the reason for performance shortfalls in large stacks. Small (1-in. footprint) two-cell stacks were fabricated which achieved good performance (average area-specific-resistance 1.0 ohm-sq cm per cell); however, larger stacks had stress-induced structural defects causing poor performance.

1994-05-01

248

New Generation of High Resolution Ultrasonic Imaging Technique for Advanced Material Characterization: Review  

NASA Astrophysics Data System (ADS)

The role of non-destructive material characterization and NDT is changing at a rapid rate, continuing to evolve alongside the dramatic development of novel techniques based on the principles of high-resolution imaging. The modern use of advanced optical, thermal, ultrasonic, laser-ultrasound, acoustic emission, vibration, electro-magnetic, and X-ray techniques, etc., as well as refined measurement and signal/data processing devices, allows for continuous generation of on-line information. As a result real-time process monitoring can be achieved, leading to the more effective and efficient control of numerous processes, greatly improving manufacturing as a whole. Indeed, concurrent quality inspection has become an attainable reality. With the advent of new materials for use in various structures, joints, and parts, however, innovative applications of modern NDT imaging techniques are necessary to monitor as many stages of manufacturing as possible. Simply put, intelligent advance manufacturing is impossible without actively integrating modern non-destructive evaluation into the production system.

Maev, R. Gr.

249

Supporting Development for the Stirling Radioisotope Generator and Advanced Stirling Technology Development at NASA GRC  

NASA Astrophysics Data System (ADS)

A high-efficiency, 110-We (watts electric) Stirling Radioisotope Generator (SRG110) for possible use on future NASA Space Science missions is being developed by the Department of Energy, Lockheed Martin, Stirling Technology Company (STC), and NASA Glenn Research Center (GRC). Potential mission use includes providing spacecraft onboard electric power for deep space missions and power for unmanned Mars rovers. GRC is conducting an in-house supporting technology project to assist in SRG110 development. One-, three-, and six-month heater head structural benchmark tests have been completed in support of a heater head life assessment. Testing is underway to evaluate the key epoxy bond of the permanent magnets to the linear alternator stator lamination stack. GRC has completed over 10,000 hours of extended duration testing of the Stirling convertors for the SRG110, and a three-year test of two Stirling convertors in a thermal vacuum environment will be starting shortly. GRC is also developing advanced technology for Stirling convertors, aimed at substantially improving the specific power and efficiency of the convertor and the overall generator. Sunpower, Inc. has begun the development of a lightweight Stirling convertor, under a NASA Research Announcement (NRA) award, that has the potential to double the system specific power to about 8 We/kg. GRC has performed random vibration testing of a lower-power version of this convertor to evaluate robustness for surviving launch vibrations. STC has also completed the initial design of a lightweight convertor. Status of the development of a multi-dimensional computational fluid dynamics code and high-temperature materials work on advanced superalloys, refractory metal alloys, and ceramics are also discussed.

Thieme, Lanny G.; Schreiber, Jeffrey G.

2005-02-01

250

Status of advanced fuel candidates for Sodium Fast Reactor within the Generation IV International Forum  

NASA Astrophysics Data System (ADS)

The main challenge for fuels for future Sodium Fast Reactor systems is the development and qualification of a nuclear fuel sub-assembly which meets the Generation IV International Forum goals. The Advanced Fuel project investigates high burn-up minor actinide bearing fuels as well as claddings and wrappers to withstand high neutron doses and temperatures. The R&D outcome of national and collaborative programs has been collected and shared between the AF project members in order to review the capability of sub-assembly material and fuel candidates, to identify the issues and select the viable options. Based on historical experience and knowledge, both oxide and metal fuels emerge as primary options to meet the performance and the reliability goals of Generation IV SFR systems. There is a significant positive experience on carbide fuels but major issues remain to be overcome: strong in-pile swelling, atmosphere required for fabrication as well as Pu and Am losses. The irradiation performance database for nitride fuels is limited with longer term R&D activities still required. The promising core material candidates are Ferritic/Martensitic (F/M) and Oxide Dispersed Strengthened (ODS) steels.

Delage, F.; Carmack, J.; Lee, C. B.; Mizuno, T.; Pelletier, M.; Somers, J.

2013-10-01

251

Profile video  

NASA Astrophysics Data System (ADS)

For unattended persistent surveillance there is a need for a system which provides the following information: target classification, target quantity estimate, cargo presence and characterization, direction of travel, and action. Over highly bandwidth restricted links, such as Iridium, SATCOM or HF, the data rates of common techniques are too high, even after aggressive compression, to deliver the required intelligence in a timely, low power manner. We propose the following solution to this data rate problem: Profile Video. Profile video is a new technique which provides all of the required information in a very low data-rate package.

Voglewede, Paul E.; Zampieron, Jeffrey

2009-05-01

252

Low NOx combustion concepts for advanced power generation systems firing low-Btu gas. Final report June 1973March 1977  

Microsoft Academic Search

The report gives results of an analysis of several advanced power generating concepts firing low-Btu gasified coal. A combined gas-turbine\\/steam-cycle power plant with integrated gasifier was the most promising from fuel utilization and economic viewpoints. Two representative combined cycle systems were chosen for detailed NOx emission and analysis: an advanced-technology high-temperature gas turbine with a waste heat boiler; and a

T. J. Tyson; M. P. Heap; C. J. Kau; B. A. Folsom; N. D. Brown

1977-01-01

253

An interactive comic book presentation for exploring video  

Microsoft Academic Search

This paper presents a method for generating compact pictorial summarizations of video. We developed a novel approach for selecting still images from a video suitable for summarizing the video and for providing entry points into it. Images are laid out in a compact, visually pleasing display reminiscent of a comic book or Japanese manga. Users can explore the video by

John S. Boreczky; Andreas Girgensohn; Gene Golovchinsky; Shingo Uchihashi

2000-01-01

254

Toward an impairment metric for stereoscopic video: a full-reference video quality metric to assess compressed stereoscopic video.  

PubMed

The quality assessment of impaired stereoscopic video is a key element in designing and deploying advanced immersive media distribution platforms. A widely accepted quality metric to measure impairments of stereoscopic video is, however, still to be developed. As a step toward finding a solution to this problem, this paper proposes a full reference stereoscopic video quality metric to measure the perceptual quality of compressed stereoscopic video. A comprehensive set of subjective experiments is performed with 14 different stereoscopic video sequences, which are encoded using both the H.264 and high efficiency video coding compliant video codecs, to develop a subjective test results database of 116 test stimuli. The subjective results are analyzed using statistical techniques to uncover different patterns of subjective scoring for symmetrically and asymmetrically encoded stereoscopic video. The subjective result database is subsequently used for training and validating a simple but effective stereoscopic video quality metric considering heuristics of binocular vision. The proposed metric performs significantly better than state-of-the-art stereoscopic image and video quality metrics in predicting the subjective scores. The proposed metric and the subjective result database will be made publicly available, and it is expected that the proposed metric and the subjective assessments will have important uses in advanced 3D media delivery systems. PMID:23771337

De Silva, Varuna; Arachchi, Hemantha Kodikara; Ekmekcioglu, Erhan; Kondoz, Ahmet

2013-06-12

255

Advanced Digital Video and the National Information Infrastructure. Report of the Information Infrastructure Task Force, Committee on Applications and Technology, Technology Policy Working Group. Draft for Public Comment.  

ERIC Educational Resources Information Center

|The National Information Infrastructure (NII) vision encompasses an infrastructure providing seamless, interactive, user driven access to the widest range of information. Video will play a key role in distribution of educational information, government data, manufacturing information, and access to health care data and services. The Technology…

Office of Science and Technology Policy, Washington, DC.

256

Writing for Video.  

ERIC Educational Resources Information Center

|Based on the premise that writing for video is not like writing for text, this guide tells the writer how to create a video script that turns particular ideas into powerful and effective video. Defining a video script as a "blueprint for a video," the guide takes the writer step-by-step through the entire process of creating a video. Chapters in…

Bjerke, Gene

257

Music video reviews  

Microsoft Academic Search

The Kinks, ONE FOR THE ROAD Vestron Video 60 min. $29.95.Neil Diamond, LIVE AT THE GREEK. Vestron Video. 60 min. (HiFi)Video 45s XX½ Stray Cats. Sony Corp. Video 45. (13 min.)XXX David Bowie. Sony Corp. Video 45 (14 min.)Duran Duran. Sony Corp. Video 45 (11 min.)

R. Serge Denisoff

1983-01-01

258

Analysis of Pulsed Laser-Generated Impulse in AN Advanced Airbreathing Thruster.  

NASA Astrophysics Data System (ADS)

This thesis describes the study of an advanced beam-powered propulsion system, called an External Radiation -Heated (ERH) thruster. The repetitively-pulsed, airbreathing engine develops thrust by expanding high pressure, radiation -heated gas over an annular shroud surface. The blast waves are generated by laser radiation heating of air using Laser Supported Detonation (LSD) waves. The phenomenology of LSD waves will be described in detail, as will the blast waves and resultant impulse they produce. Analytical simulation of the ERH thruster is accomplished with a one-dimensional model of blast waves propagating uniformly and radially outward from a laser -generated "line source" of high pressure, high temperature gas. Cylindrical blast wave scaling relationships developed by Sedov are employed in this model. The possibility of including other physical phenomena (e.g., viscosity, radiation, conduction or real gas effects) in the analysis will be reviewed. The analyses for the ERH thruster model are performed for a sample vehicle point design. This vehicle, known as the "Lightcraft Technology Demonstrator" (LTD), may be constructed within the next five years to illustrate the potential of Earth-to-Orbit laser propulsion. The external flow over the LTD vehicle was analyzed to determine basic drag characteristics, inlet total pressure recovery and captured air mass flow rate--all projected as functions of flight Mach number and altitude. The ERH thruster performance analysis indicates that the optimum LTD inlet air gap is about 3 cm around the 100 cm diameter centerbody, for transonic "refresh" air flow over the impulse surface. In this analysis, the principal indicator used to predict engine performance was the "impulse coupling coefficient (CC)"; i.e., the thrust developed per unit laser power input. Coupling coefficients up to 600-700 Newtons/Megawatt were found to be feasible, which are an order of magnitude larger than those for laser-heated rockets. For maximum developed thrust, laser pulse energies fell in the range of 25-50 kilojoules for pulse repetition frequencies of 1-10 kilohertz. The associated laser pulse durations ranged from 10 to several hundred nanoseconds. In the CC performance sensitivity studies, incident laser intensity was varied from 5 times 10^8 to 10 ^{10} W/cm^2. The promising results reported for the ERH thruster in this thesis support the case for continuing research on this advanced airbreathing engine.

Richard, Jacques Constant

259

Commercial Video Games in the Science Classroom  

ERIC Educational Resources Information Center

|There's no denying that middle school students are interested in video games. With such motivation present, we as teachers should harness this media in a productive way in our classrooms. Students today are much more technologically advanced than ever before, and using video games is one more way to use something from their world as a teaching…

Angelone, Lauren

2010-01-01

260

Video motion detection for physical security applications  

Microsoft Academic Search

Physical security specialists have been attracted to the concept of video motion detection for several years. Claimed potential advantages included additional benefit from existing video surveillance systems, automatic detection, improved performance compared to human observers, and cost effectiveness. In recent years significant advances in image processing dedicated hardware and image analysis algorithms and software have accelerated the successful application of

1990-01-01

261

This Rock 'n' Roll Video Teaches Math  

ERIC Educational Resources Information Center

|Mathematics is a discipline that has significantly advanced through the use of digital technologies with improved computational, graphical, and symbolic capabilities. Digital videos can be used to present challenging mathematical questions for students. Video clips offer instructional possibilities for moving students from a passive mode of…

Niess, Margaret L.; Walker, Janet M.

2009-01-01

262

Selection of the reference steam generator for the advanced liquid metal reactor  

Microsoft Academic Search

In February 2006 President Bush announced the Advanced Energy Initiative, which included the Department of Energy's (DOE) Global Nuclear Energy Partnership (GNEP). GNEP has seven broad goals; one of the major elements being to develop and deploy advanced nuclear fuel recycling technology that includes consuming spent nuclear fuel in an Advanced Recycling Reactor (ARR). DOE is contemplating accelerating the deployment

Eric P. Loewen; Chuck Boardman

2007-01-01

263

Spatial Browsing for Video Databases  

Microsoft Academic Search

Time-series description data concerning a camera are expected to be automatically generated by various sensors in the near\\u000a future, such as a camera’s time-series positions, directions and zoom ratios so as to provide a rich environment for retrieving\\u000a and browsing video data spatially. We also have used real-time 3D CG (three dimensional computer graphics) for interfaces\\u000a to browse videos in

Masatoshi Arikawa; Tetsu Kamiyama

1998-01-01

264

A multiparent advanced generation inter-cross population for genetic analysis in wheat.  

PubMed

We present the first results from a novel multiparent advanced generation inter-cross (MAGIC) population derived from four elite wheat cultivars. The large size of this MAGIC population (1579 progeny), its diverse genetic composition and high levels of recombination all contribute to its value as a genetic resource. Applications of this resource include interrogation of the wheat genome and the analysis of gene-trait association in agronomically important wheat phenotypes. Here, we report the utilization of a MAGIC population for the first time for linkage map construction. We have constructed a linkage map with 1162 DArT, single nucleotide polymorphism and simple sequence repeat markers distributed across all 21 chromosomes. We benchmark this map against a high-density DArT consensus map created by integrating more than 100 biparental populations. The linkage map forms the basis for further exploration of the genetic architecture within the population, including characterization of linkage disequilibrium, founder contribution and inclusion of an alien introgression into the genetic map. Finally, we demonstrate the application of the resource for quantitative trait loci mapping using the complex traits plant height and hectolitre weight as a proof of principle. PMID:22594629

Huang, Bevan E; George, Andrew W; Forrest, Kerrie L; Kilian, Andrzej; Hayden, Matthew J; Morell, Matthew K; Cavanagh, Colin R

2012-05-17

265

Generation of arbitrary freeform source shapes using advanced illumination systems in high-NA immersion scanners  

NASA Astrophysics Data System (ADS)

The application of customized and freeform illumination source shapes is a key enabler for continued shrink using 193 nm water based immersion lithography at the maximum possible NA of 1.35. In this paper we present the capabilities of the DOE based Aerial XP illuminator and the new programmable FlexRay illuminator. Both of these advanced illumination systems support the generation of such arbitrarily shaped illumination sources. We explain how the different parts of the optical column interact in forming the source shape with which the reticle is illuminated. Practical constraints of the systems do not limit the capabilities to utilize the benefit of freeform source shapes vs. classic pupil shapes. Despite a different pupil forming mechanism in the two illuminator types, the resulting pupils are compatible regarding lithographic imaging performance so that processes can be transferred between the two illuminator types. Measured freeform sources can be characterized by applying a parametric fit model, to extract information for optimum pupil setup, and by importing the measured source bitmap into an imaging simulator to directly evaluate its impact on CD and overlay. We compare measured freeform sources from both illuminator types and demonstrate the good matching between measured FlexRay and DOE based freeform source shapes.

Zimmermann, Jörg; Gräupner, Paul; Neumann, Jens T.; Hellweg, Dirk; Jürgens, Dirk; Patra, Michael; Hennerkes, Christoph; Maul, Manfred; Geh, Bernd; Engelen, Andre; Noordman, Oscar; Mulder, Melchior; Park, Sean; de Vocht, Joep

2010-03-01

266

Second generation advanced reburning for high efficiency NO(x) control. Progress report, 1196  

SciTech Connect

This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning (SGAR), which has the potential to achieve 90+% NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction. Phase I consists of six tasks: Task 1.1 Project Coordination and Reporting/Deliverables; Task 1.2 Kinetics of Na{sub 2}CO{sub 3} Reactions with Flue Gas Components; Task 1.3 O.l x lO{sup 6}Btu/hr Optimization Studies; Task 1.4 1.0 x 10{sup 6} Btu/hr Process Development Tests; Task 1.5 Mechanism Development and Modeling; and Task 1. 6 Design Methodology and Application. The fourth reporting period (July 1 - September 30, 1996) included both experimental and modeling activities. The bench scale CTT experiments (Task 1.3) were completed. The 1 MMBtu/hr Boiler Simulator Facility (BSF) was prepared for the test program and experiments were conducted using natural gas (NG) as main and reburing fuels (Task 1.4). A few preliminary tests were also performed with coal firing. The results have been reduced and are reported. Initial experimental data were obtained on reactions of sodium promoters (Task 1.2) at the University of Texas in Austin (UT). The kinetic model was extended to include reactions of sulfur and sodium (Task 1.5).

Zamansky, V.M.; Maly, P.M.

1996-10-01

267

Wavelet Based Coding of Images and Video.  

National Technical Information Service (NTIS)

The main goal of this project was to study and develop wavelet-based image and video compression algorithms, with focuses on algorithmic performance, image quality, and bandwidth optimization. This was accomplished by applying advanced statistical modelin...

M. T. Orchard

2001-01-01

268

Video interactions in online video social networks  

Microsoft Academic Search

This article characterizes video-based interactions that emerge from YouTube's video response feature, which allows users to discuss themes and to provide reviews for products or places using much richer media than text. Based on crawled data covering a representative subset of videos and users, we present a characterization from two perspectives: the video response view and the interaction network view.

Fabrício Benevenuto; Tiago Rodrigues; Virgilio Almeida; Jussara M. Almeida; Keith W. Ross

2009-01-01

269

Module 16-AA: Spirituality Video  

Cancer.gov

A patient with advanced metastatic cancer is hospitalized for sepsis. The doctor, nurse, and chaplain initiate a discussion with the family about the patient’s care. The family is hoping for a miracle. The video concludes with a discussion by Dr. Richard Payne of the value of hospice care, and its congruence with African American spirituality.

270

Sports Video Analysis: Semantics Extraction, Editorial Content Creation and Adaptation  

Microsoft Academic Search

Advances in computing, networking, and multimedia technologies have led to a tremendous growth of sports video content and accelerated the need of analysis and understanding of sports video content. Sports video analysis has been a hot research area and a number of potential applications have been identified. In this paper, we summarize our research achievement on semantics extraction and automatic

Changsheng Xu; Jian Cheng; Yi Zhang; Yifan Zhang; Hanqing Lu

2009-01-01

271

Real-time video surveillance for large scenes  

Microsoft Academic Search

Video surveillance provides security monitoring of target scenes. As the public safety is confronted of more and more neoteric challenges, numerous video surveillance cameras are deployed around the world for public safety and security, intelligent traffic management and homeland security. With the advances in both hardware and software, video surveillance systems have been innovated with many useful features, such as

Hanyu Liu; Chong Tang; Shaoen Wu; Honggang Wang

2011-01-01

272

Demand Paging for Video-on-Demand Servers  

Microsoft Academic Search

With recent advances in storage and network technology it is now possible to provide video on demand (VOD) service, thereby eliminating the inflexibility inherent in today's broadcast cable systems. A VOD server is a computer system that stores videos in compressed digital form and provides support for the concurrent transmission of different portions of the compressed video data to the

Banu Özden; Rajeev Rastogi; Abraham Silberschatz; Cliff Martin

1995-01-01

273

Overcoming Challenges: "Going Mobile with Your Own Video Models"  

ERIC Educational Resources Information Center

Video modeling has been shown to be an effective intervention for students with a variety of disabilities. Traditional video models present problems in terms of application across meaningful settings, such as in the community or even across the school environment. However, with advances in mobile technology, portable devices with video capability…

Carnahan, Christina R.; Basham, James D.; Christman, Jennifer; Hollingshead, Aleksandra

2012-01-01

274

High efficiency video coding for ultrasound video communication in m-health systems.  

PubMed

Emerging high efficiency video compression methods and wider availability of wireless network infrastructure will significantly advance existing m-health applications. For medical video communications, the emerging video compression and network standards support low-delay and high-resolution video transmission, at the clinically acquired resolution and frame rates. Such advances are expected to further promote the adoption of m-health systems for remote diagnosis and emergency incidents in daily clinical practice. This paper compares the performance of the emerging high efficiency video coding (HEVC) standard to the current state-of-the-art H.264/AVC standard. The experimental evaluation, based on five atherosclerotic plaque ultrasound videos encoded at QCIF, CIF, and 4CIF resolutions demonstrates that 50% reductions in bitrate requirements is possible for equivalent clinical quality. PMID:23366352

Panayides, A; Antoniou, Z; Pattichis, M S; Pattichis, C S; Constantinides, A G

2012-01-01

275

Development and use of radionuclide generators in nuclear medicine -- recent advances and future perspectives.  

National Technical Information Service (NTIS)

Although the trend in radionuclide generator research has declined, radionuclide generator systems continue to play an important role in nuclear medicine. Technetium-99m obtained from the molybdenum-99/technetium-99m generator system is used in over 80% o...

F. F. Knapp

1998-01-01

276

SIRSALE: integrated video database management tools  

NASA Astrophysics Data System (ADS)

Video databases became an active field of research during the last decade. The main objective in such systems is to provide users with capabilities to friendly search, access and playback distributed stored video data in the same way as they do for traditional distributed databases. Hence, such systems need to deal with hard issues : (a) video documents generate huge volumes of data and are time sensitive (streams must be delivered at a specific bitrate), (b) contents of video data are very hard to be automatically extracted and need to be humanly annotated. To cope with these issues, many approaches have been proposed in the literature including data models, query languages, video indexing etc. In this paper, we present SIRSALE : a set of video databases management tools that allow users to manipulate video documents and streams stored in large distributed repositories. All the proposed tools are based on generic models that can be customized for specific applications using ad-hoc adaptation modules. More precisely, SIRSALE allows users to : (a) browse video documents by structures (sequences, scenes, shots) and (b) query the video database content by using a graphical tool, adapted to the nature of the target video documents. This paper also presents an annotating interface which allows archivists to describe the content of video documents. All these tools are coupled to a video player integrating remote VCR functionalities and are based on active network technology. So, we present how dedicated active services allow an optimized video transport for video streams (with Tamanoir active nodes). We then describe experiments of using SIRSALE on an archive of news video and soccer matches. The system has been demonstrated to professionals with a positive feedback. Finally, we discuss open issues and present some perspectives.

Brunie, Lionel; Favory, Loic; Gelas, J. P.; Lefevre, Laurent; Mostefaoui, Ahmed; Nait-Abdesselam, F.

2002-07-01

277

Statistical metrology - measurement and modeling of variation for advanced process development and design rule generation  

Microsoft Academic Search

Advanced process technology will require more detailed understanding and tighter control of variation in devices and interconnects. The purpose of statistical metrology is to provide methods to measure and characterize variation, to model systematic and random components of that variation, and to understand the impact of variation on both yield and performance of advanced circuits. Of particular concern are spatial

D. S. Boning; J. E. Chung

1998-01-01

278

Technical and economic feasibility of integrated video service by satellite  

NASA Astrophysics Data System (ADS)

A feasibility study is presented of utilizing modern satellite technology, or more advanced technology, to create a cost-effective, user-friendly, integrated video service, which can provide videophone, video conference, or other equivalent wideband service on demand. A system is described that permits a user to select a desired audience and establish the required links similar to arranging a teleconference by phone. Attention is given to video standards, video traffic scenarios, satellite system architecture, and user costs.

Price, K. M.; Kwan, R. K.; White, L. W.; Garlow, R. K.; Henderson, T. R.

1992-03-01

279

Accelerating YouTube with video correlation  

Microsoft Academic Search

In this paper, using long-term data traces, we present an in-depth measurement study on the characteristics of YouTube, the most successful site providing a new generation of short video sharing service. We find that YouTube videos have noticeable differences compared with traditional videos, making it difficult to use conventional strategies, such as peer-to-peer, to reduce the server workload. However, the

Xu Cheng; Jiangchuan Liu; Haiyang Wang

2009-01-01

280

Window generator  

NASA Astrophysics Data System (ADS)

The present invention relates generally to video target recognition systems and more specifically to a window generator which receives a field of video data and applies an identification code to rectangular subregions to identify distinct target areas within a given background area. The present invention comprises a window generator which provides a 6 bit target identification number for up to 63 target areas and one background area in a frame of serially scanned data. The window generator receives a field of video data from an image data source. This video data consists of digitized frames of serially scanned data similar to a conventional television screen image, which is divided horizontally in pixels, and vertically in lines. The window generator permits any given frame to be subdivided into specific rectangular subregions, which may be located anywhere on the video picture. By allowing statistics to be collected on the individual subregions (or target areas) the window generator permits local processing of video data within the specified target areas as opposed to processing of video data over the entire video field. One embodiment of the window generator is composed of: a microprocessor, a random access memory (RAM), a comparator, a line memory, two counters, an OR gate, a frame initialization circuit, and a buffer. These elements function as described below.

Johnson, William K.; May, Roger A.

1989-03-01

281

Advances in video game methods and reporting practices (but still room for improvement): a commentary on Strobach, Frensch, and Schubert (2012).  

PubMed

Strobach, Frensch, and Schubert (2012) presented evidence that action video game experience improves task-switching and reduces dual-task costs. Their design commendably adhered to many of the guidelines proposed by Boot, Blakely and Simons (2011) to overcome common method and interpretation problems in this literature. Adherence to these method guidelines is necessary in order to reduce the influence of demand characteristics, placebo effects, and underreporting that might otherwise produce false positive findings. In their paper, Strobach et al. (2012) appear to have misinterpreted some of these proposed guidelines, meaning that their methods did not eliminate possible sources of demand characteristics and differential placebo effects. At this important, early stage of video game research, reducing the likelihood of false positive findings is essential. In this commentary we clarify our methodological critiques and guidelines, identify ways in which this new study did and did not meet these guidelines, and discuss how these methodological issues should constrain the interpretation of the reported evidence. PMID:22964029

Boot, Walter R; Simons, Daniel J

2012-09-07

282

Parallel algorithm implementation of MPEG-4 video decoder on DSP  

NASA Astrophysics Data System (ADS)

MPEG-4 is an international coding standard that aims at providing standardized core technologies allowing efficient storage, transmission and manipulation of video data in multimedia environments. As mobility has become one of the key requirements of the information society today, the next generation mobile will be a service-oriented industry, capable of delivering rich multimedia content, especially streaming video, to the palms of mobile subscribers. MPEG-4, with its superior compression, interactivity and systems capabilities, is the most promising future standard. And that small package high performance high speed DSPs are very suitable to be used in portable devices. This paper describes the implementation of MPEG-4 SVP(simple visual profile) video decoder on the TMS320C6201 DSP which is on the í«C6x EVM evaluation module(EVM) . The Texas Instruments TMS320C62x devices are fixed-point DSPs that feature the VelociTiTM architecture, which is a high-performance, advanced, very-long-instruction-word (VLIW) architecture. With this architecture, a high degree of parallelism can be exploited to meet real-time requirements of video processing such as compression and decompression. In this paperú¼ different aspects of the decoder , the decoding algorithm, decoder structure and memory requirements are discussed.

Li, Dongmei; Li, Zhaohui

2001-09-01

283

Pentosidine in advanced glycation end-products (AGEs) during UVA irradiation generates active oxygen species and impairs human dermal fibroblasts  

Microsoft Academic Search

Our previous study reported that advanced glycation end-products (AGE)-modified BSA produced active oxygen species, O2?, H2O2, and OH under UVA irradiation and enhanced the cytotoxicity of UVA light. We examined whether pentosidine in AGE-modified BSA was involved in one of the mechanisms generating the active oxygen species. In biological investigations, fibroblasts exposed to UVA (20 J\\/cm2) in the presence of

Yuri Okano; Hitoshi Masaki; Hiromu Sakurai

2001-01-01

284

Video Quality Prediction Model for H.264 Video over UMTS Networks and Their Application in Mobile Video Streaming  

Microsoft Academic Search

Universal Mobile Telecommunication System (UMTS) is a third generation mobile communication systems that supports wireless wideband multimedia applications. The objective of this paper is to present a new model for non-intrusive prediction of H.264 encoded video quality over UMTS networks and to illustrate their application to video quality monitoring and adaptation in mobile wireless streaming services. First, we present an

Asiya Khan; Lingfen Sun; Emmanuel Ifeachor; Jose Oscar Fajardo; Fidel Liberal

2010-01-01

285

Intelligent keyframe extraction for video printing  

NASA Astrophysics Data System (ADS)

Nowadays most digital cameras have the functionality of taking short video clips, with the length of video ranging from several seconds to a couple of minutes. The purpose of this research is to develop an algorithm which extracts an optimal set of keyframes from each short video clip so that the user could obtain proper video frames to print out. In current video printing systems, keyframes are normally obtained by evenly sampling the video clip over time. Such an approach, however, may not reflect highlights or regions of interest in the video. Keyframes derived in this way may also be improper for video printing in terms of either content or image quality. In this paper, we present an intelligent keyframe extraction approach to derive an improved keyframe set by performing semantic analysis of the video content. For a video clip, a number of video and audio features are analyzed to first generate a candidate keyframe set. These features include accumulative color histogram and color layout differences, camera motion estimation, moving object tracking, face detection and audio event detection. Then, the candidate keyframes are clustered and evaluated to obtain a final keyframe set. The objective is to automatically generate a limited number of keyframes to show different views of the scene; to show different people and their actions in the scene; and to tell the story in the video shot. Moreover, frame extraction for video printing, which is a rather subjective problem, is considered in this work for the first time, and a semi-automatic approach is proposed.

Zhang, Tong

2004-10-01

286

System identification to characterize human use of ethanol based on generative point-process models of video games with ethanol rewards  

Microsoft Academic Search

The influence of family history and genetics on the risk for the development of abuse or dependence is a major theme in alcoholism research. Recent research have used endophenotypes and behavioral paradigms to help detect further genetic contributions to this disease. Electronic tasks, essentially video games, which provide alcohol as a reward in controlled environments and with specified exposures have

Ipek Ozil; Martin H. Plawecki; Peter C. Doerschuk; Sean J. O'Connor

2011-01-01

287

Science Teacher Efficacy and Extrinsic Factors toward Professional Development Using Video Games in a Design-Based Research Model: The Next Generation of STEM Learning  

ERIC Educational Resources Information Center

|Designed-based research principles guided the study of 51 secondary-science teachers in the second year of a 3-year professional development project. The project entailed the creation of student-centered, inquiry-based, science, video games. A professional development model appropriate for infusing innovative technologies into standards-based…

Annetta, Leonard A.; Frazier, Wendy M.; Folta, Elizabeth; Holmes, Shawn; Lamb, Richard; Cheng, Meng-Tzu

2013-01-01

288

The development and use of radionuclide generators in nuclear medicine -- recent advances and future perspectives  

Microsoft Academic Search

Although the trend in radionuclide generator research has declined, radionuclide generator systems continue to play an important role in nuclear medicine. Technetium-99m obtained from the molybdenum-99\\/technetium-99m generator system is used in over 80% of all diagnostic clinical studies and there is increasing interest and use of therapeutic radioisotopes obtained from generator systems. This paper focuses on a discussion of the

F. F. Jr

1998-01-01

289

Report on the Workshop on Advanced Digital Video in the National Information Infrastructure. Held in Washington, D.C. on May 10-11, 1994.  

National Technical Information Service (NTIS)

Contents: Summary Report by the Program Committee; Workshop Agenda; Breakout Group Reports; Visions and Services of the National Information Infrastructure; Production and Distribution of Entertainment in the NII; Medical Applications; Putting Advanced Di...

C. Fenimore B. Field H. Frank E. Georg M. Papillo G. Reitmeier W. Stackhouse C. Van Degrift

1994-01-01

290

DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NONPOLLUTING TURBINE DRIVE GAS GENERATOR  

Microsoft Academic Search

The objectives of this report period were to continue and complete testing of the Gas Generator hardware, to complete and submit a Draft Final Report, and after incorporation of adjustments required, to then submit the Final Report. Focus during this report period was initially on testing the Gas Generator. While conducting scheduled full power tests of the Gas Generator at

Stephen E. Doyle

2002-01-01

291

Automatic generator health assessment system that embedded with advanced fault diagnosis and expert system  

Microsoft Academic Search

Diesel engine type of generators that uses fuel to produce electricity are common in many countries which suffer from inconsistency in electricity supply. To lower the cost, manufacturers tend to purchase secondhand generators to ensure constant supply of electricity during production. However, manufacturers do not have the proper skill to assess the health of second-hand generators. This, coupled with poor

Peter W. Tse; Eugene Y. Li; Jeffery C. Chan; Jacko T. Leung

2010-01-01

292

Recent Advance of Hydride Generation-Analytical Atomic Spectrometry: Part I-Technique Development  

Microsoft Academic Search

Hydride generation is the most popular and widely used chemical vapor generation, which is always interesting to analytical chemists as an effective sample introduction method, especially for elemental determination and speciation analysis by analytical atomic spectrometry. The present review provides a literature survey on the hydride generation technique coupled to analytical atomic spectrometry during the past several years, covering the

Zhou Long; Yamin Luo; Chengbin Zheng; Pengchi Deng; Xiandeng Hou

2012-01-01

293

Education Tools: Nanotechnology Video Modules  

NSDL National Science Digital Library

The Penn State Center for Nanotechnology Education and Utilization (CNEU) is the home of the Pennsylvania Nanofabrication Manufacturing Technology (NMT) Partnership and the National Science Foundation (NSF) Regional Center for Nanofabrication Manufacturing Education, an NSF-sponsored regional Advanced Technology Education (ATE) Center. CNEU is dedicated to research, development, and education across all aspects of micro- and nanotechnology and the resources of the Center are focused on the incorporation of nanotechnology into secondary education, post-secondary education, and industry applications. Here, CNEU provides a series of Nanotechnology Video Modules which are used as an introduction to nanotechnology courses at CNEU partner institutions. There are currently six videos available covering introductions, nanotech basics, nanotech industry influence, nanotech educational opportunities, and career choices in nanotech. For anyone interested in basic nanotech courses or in encouraging students to consider nanotech as a career option these videos might prove useful.

2008-09-25

294

Making Sense of Video Games: Pre-Service Teachers Struggle with This New Medium  

Microsoft Academic Search

This next generation of students has had exposure to digital media far more than any previous generation, particularly video games. Almost daily, news outlets report the latest news on the evils of video games, how much children are playing video games, the potential of video games, and the list just goes on. In this presentation, the researchers explore how pre-service

Mark Austin Evans; Sacip Toker

295

An advanced CCD emulator with 32MB image memory  

NASA Astrophysics Data System (ADS)

As part of the LSST sensor development program we have developed an advanced CCD emulator for testing new multichannel readout electronics. The emulator, based on an Altera Stratix II FPGA for timing and control, produces 4 channels of simulated video waveforms in response to an appropriate sequence of horizontal and vertical clocks. It features 40MHz, 16-bit DACs for reset and video generation, 32MB of image memory for storage of arbitrary grayscale bitmaps, and provision to simulate reset and clock feedthrough ("glitches") on the video channels. Clock inputs are qualified for proper sequences and levels before video output is generated. Binning, region of interest, and reverse clock sequences are correctly recognized and appropriate video output will be produced. Clock transitions are timestamped and can be played back to a control PC. A simplified user interface is provided via a daughter card having an ARM M3 Cortex microprocessor and miniature color LCD display and joystick. The user can select video modes from stored bitmap images, or flat, gradient, bar, chirp, or checkerboard test patterns; set clock thresholds and video output levels; and set row/column formats for image outputs. Multiple emulators can be operated in parallel to simulate complex CCDs or CCD arrays.

O'Connor, P.; Fried, J.; Kotov, I.

2012-07-01

296

Improving Access to a Digital Video Library  

Microsoft Academic Search

Quick access to short, relevant video segments enables efficient use of a digital video library. This study evaluated an interface designed for such access, an interface that allows the user to browse a set of segments generated by a search query. Subjects' performance and attitudes were measured while they performed a fact-finding task to determine the relative effectiveness of three

Michael G. Christel; David B. Winkler; C. Roy Taylor

1997-01-01

297

Distributed video coding in wireless sensor networks  

Microsoft Academic Search

This paper addresses the important aspect of compressing and transmitting video signals generated by wireless broadband networks while heeding the architectural demands imposed by these networks in terms of energy constraints as well as the channel uncertainty related to the wireless communication medium. Driven by the need to develop light, robust, energy-efficient, and low delay video delivery schemes, a distributed

Rohit Puri; Abhik Majumdar; Prakash Ishwar; Kannan Ramchandran

2006-01-01

298

Women, Video Gaming and Learning: Beyond Stereotypes  

ERIC Educational Resources Information Center

|While video gaming has grown immensely as an industry over the last decade, with growing numbers of gamers around the globe, including women, gaming continues to be a very gendered practice. The apparent gender divide in video gaming has caught the attention of both the gaming industry and educators, generating considerable discussion and…

Hayes, Elisabeth

2005-01-01

299

Spotting fake videos with Tracker Video Analysis  

NASA Astrophysics Data System (ADS)

Is that youtube video real or fake? This question comes up all the time. In this talk, I will briefly introduce Tracker Video Analysis (a free, java-based application) and show how it can be used to determine the validity of videos.

Allain, Rhett

2010-10-01

300

Learning video preferences from video content  

Microsoft Academic Search

Viewers of video now have more choices than ever. As the number of choices increases, the task of searching through these choices to locate video of interest is becoming more difficult. Current methods for learning a viewer's preferences in order to automate the search process rely either on video having content descriptions or on having been rated by other viewers

Darin Brezeale; Diane J. Cook

2007-01-01

301

Development of an advanced human–machine interface for next generation nuclear power plants  

Microsoft Academic Search

An advanced human–machine interface (HMI) has been developed to enhance the safety and availability of a nuclear power plant (NPP) by improving operational reliability. The key elements of the proposed HMI are the large display panels which present synopsis of plant status and the compact, computer-based work stations for monitoring, control and protection functions. The work station consists of four

Soon Heung Chang; Seong Soo Choi; Jin Kyun Park; Gyunyoung Heo; Han Gon Kim

1999-01-01

302

Consumption of oxygen: a mitochondrial-generated progression signal of advanced cancer  

PubMed Central

Changes in mitochondrial genome such as mutation, deletion and depletion are common in cancer and can determine advanced phenotype of cancer; however, detailed mechanisms have not been elucidated. We observed that loss of mitochondrial genome reversibly induced overexpression and activation of proto-oncogenic Ras, especially K-Ras 4A, responsible for the activation of AKT and ERK leading to advanced phenotype of prostate and breast cancer. Ras activation was induced by the overexpression of 3-hydroxy-3-methyl-glutaryl-CoA reductase (HMGR), the rate-limiting enzyme of the mevalonate pathway. Hypoxia is known to induce proteasomal degradation of HMGR. Well differentiated prostate and breast cancer cells with high mitochondrial DNA content consumed a large amount of oxygen and induced hypoxia. Loss of mitochondrial genome reduced oxygen consumption and increased in oxygen concentration in the cells. The hypoxic-to-normoxic shift led to the overexpression of HMGR through inhibiting proteasomal degradation. Therefore, reduction of mitochondrial genome content induced overexpression of HMGR through hypoxic to normoxic shift and subsequently the endogenous induction of the mevalonate pathway activated Ras that mediates advanced phenotype. Reduction of mitochondrial genome content was associated with the aggressive phenotype of prostate cancer in vitro cell line model and tissue specimens in vivo. Our results elucidate a coherent mechanism that directly links the mitochondrial genome with the advanced progression of the disease.

Cook, C C; Kim, A; Terao, S; Gotoh, A; Higuchi, M

2012-01-01

303

Advanced LILAC - an Automated Layout Generation system for MOS\\/LSIs  

Microsoft Academic Search

This paper describes the layout model and algorithm applied to an advanced LILAC system which is capable of automatically designing MOS\\/LSI chip layouts containing PLAs. The system, which is a fully automated design system, inputs logic description and outputs layout drawing.

Tokinori Kozawa; Hiroshi Horino; Tadakatu Ishiga; Junya Sakemi; Shoji Sato

1974-01-01

304

Workshop on Advanced Computational Materials Science: Application to Fusion and Generation IV Fission Reactors.  

National Technical Information Service (NTIS)

This program was convened to determine the degree to which an increased effort in modeling and simulation could help bridge the gap between the data that is needed to support the implementation of these advanced nuclear technologies and the data that can ...

2004-01-01

305

Sports video classification using HMMS  

Microsoft Academic Search

In this paper we address the problem of sports video classification using hidden Markov models (HMMs). For each sports genre, we construct two HMMs representing motion and color features respectively. The observation sequences generated from the principal motion direction and the principal color of each frame are fed to a motion and a color HMM respectively. The outputs are integrated

Xavier Gibert; Huiping Li; David Doermann

2003-01-01

306

DIAGNOSTIC OF CORROSION DEFECTS IN STEAM GENERATOR TUBES USING ADVANCED SIGNAL PROCESSING FROM EDDY CURRENT TESTING  

Microsoft Academic Search

Recently, the Brazilian Angra I PWR nuclear power plant went into a programmed shutdown for substituti on of its Steam Generator (SG) which life was shortened d ue to stress corrosion in its tubes. The total cost of investment were around R$724 million. The signals generated during an Eddy-current Testing (ECT) inspection in SG tubes of nuclear plant allows for

André L. Formigoni; Luiz A. N. M. Lopez; Daniel K. S. Ting

307

Advanced electron-beam pattern generation technology for 180-nm masks  

Microsoft Academic Search

Optical lithography will be the dominant technique used for 180 nm generation production devices. With a reduced feature size on the wafer, 4X optical reduction, optical proximity correction (OPC), and phase shift lithography techniques, mask-related errors become even more critical to wafer yield. In addition, small feature sizes and lithography enhancement techniques require finer edge resolution. Clearly, new patten generation

Frank E. Abboud; Charles A. Sauer; William Wang; Matthew Vernon; Richard Prior; Henry T. Pearce-Percy; Damon M. Cole; Marian Mankos

1997-01-01

308

Getting the most out of existing generators: Rehabilitation advances and advice  

Microsoft Academic Search

Many hydropower producers in North America are upgrading older generating systems. Through rehabilitation, these producers are increasing efficiency and\\/or capacity at existing facilities that are several decades old. Rewinding a generator or replacing a turbine runner frequently results in performance that not only equals, but surpasses, the capabilities of the equipment when it was new. Rehabilitating existing plants also can

J. B. Wetmore; M. A. Young

1993-01-01

309

VALIDATION OF QTL FOR REPRODUCTIVE TRAITS IN ADVANCED GENERATIONS OF A MEISHAN CROSS POPULATION  

Technology Transfer Automated Retrieval System (TEKTRAN)

A QTL scan of a backcross, F3 and F4 generations of a Meishan-White composite resource population identified a genome-wide significant QTL for ovulation rate on SSC 8 along with suggestive QTL for ovulation rate on SSC 3 and 10 and for age at puberty on SSC 1 and 10. The F4 generation was crossed to...

310

Recent advances in 3D finite difference mesh generation using the BRL-CAD package  

Microsoft Academic Search

For the past three years Lawrence Livermore National Laboratory has been developing methods for generating 3D finite difference (FD) meshes directly from solid models. During the past year we have changed our solid modeling platform for FD mesh generation from the TIPS-1 solid modeler to the BRL-CAD package. In addition to the basic changes required by the differences between these

1989-01-01

311

Generation Vexed: Age-Related Culture Clashes in the Advancement Office and How to Avoid Them  

ERIC Educational Resources Information Center

|Welcome to the Generational Wars--a workplace skirmish over everything from ties and pantyhose to flex time and Facebook. For the first time in American history, three generations are now working desk-to-desk. And each brings wildly varying views on work and life into the office. The battle lines have been drawn. On one side are the Baby Boomers,…

DiConsiglio, John

2009-01-01

312

Recent advances in evaluating critical heat flux conditions in LMFBR steam generators  

Microsoft Academic Search

An experimental program was conducted at two independent laboratories to characterize critical heat flux (CHF) in sodium-heated steam generator tubes for application to Liquid Metal Fast Breeder Reactor (LMFBR) steam generator design. Three models of about the same inside tube diameter, wall thickness, and material have been tested. Water was circulated vertically upward in the tube models heated by sodium

S. Wolf; D. M. France; D. H. Holmes

1977-01-01

313

Characterization of social video  

Microsoft Academic Search

The popularity of social media has grown dramatically over the World Wide Web. In this thesis, we provide an overview of the types of social media. We then analyze the video popularity distribution of well-known social video websites (YouTube, Google Video, and the AOL Truveo Video Search engine) and characterize their workload up to an eight month period. We identify

Jeffrey R Ostrowski

2008-01-01

314

Video Surveillance Unit  

Microsoft Academic Search

The Video Surveillance Unit (VSU) has been designed to provide a flexible, easy to operate video surveillance and recording capability for permanent rack-mounted installations. The system consists of a single rack-mountable chassis and a camera enclosure. The chassis contains two 8 mm video recorders, a color monitor, system controller board, a video authentication verifier module (VAVM) and a universal power

R. L. Martinez; C. S. Johnson

1990-01-01

315

No Fuss Video  

ERIC Educational Resources Information Center

Ever since video became readily available with the advent of the VCR, educators have been clamoring for easier ways to integrate the medium into the classroom. Today, thanks to broadband access and ever-expanding offerings, engaging students with high-quality video has never been easier. Video-on-demand (VOD) services provide bite-size video clips…

Doyle, Al

2006-01-01

316

How people find videos  

Microsoft Academic Search

At present very little is known about how people locate and view videos 'in the wild'. This study draws a rich picture of everyday video seeking strategies and video information needs, based on an ethnographic study of New Zealand university students. These insights into the participants' activities and motivations suggest potentially useful facilities for a video digital library.

Sally Jo Cunningham; David M. Nichols

2008-01-01

317

The Video Book.  

ERIC Educational Resources Information Center

|This book provides a comprehensive step-by-step learning guide to video production. It begins with camera equipment, both still and video. It then describes how to reassemble the video and build a final product out of "video blocks," and discusses multiple-source configurations, which are required for professional level productions of live shows.…

Clendenin, Bruce

318

DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR  

SciTech Connect

The objectives of this report period were to continue the development of the Gas Generator design, to complete the hardware and ancillary hardware fabrication, and commence the Test Preparations for the testing of the non-polluting unique power turbine drive gas generator. Focus during this report period has been on testing the Gas Generator. Because of unacceptable delays encountered in a previously competitively selected test site, CES initiated a re-competition of our testing program and selected an alternate test site. Following that selection, CES used all available resources to make preparations for testing the 10 Mw Gas Generator at the new testing site facilities of NTS at Saugus, CA. A substantial portion of this report period was devoted to Testing Preparations, i.e. test facility development, cold- flow testing, calibration testing, performing igniter ignition testing, and then commencement of the completely assembled Gas Generator Assembly Testing, in process at this writing.

Unknown

2001-10-30

319

A Comprehensive Resource Management Framework for Next Generation Wireless Networks  

Microsoft Academic Search

We propose an integrated resource management approach that can be implemented in next generation wireless networks that support multimedia services (data, voice, video, etc.). Specifically, we combine the use of position-assisted and mobility predictive advanced bandwidth reservation with a call admission control and bandwidth reconfiguration strategy to support flexible QoS management. We also introduce a mobile agent based framework that

Jian Ye; Jiongkuan Hou; Symeon Papavassiliou

2002-01-01

320

Low-Cost Optical Video Links Based on VCSELs  

NASA Astrophysics Data System (ADS)

The history of introduction and current status of VCSEL based optical video link modules which have emerged as one of the main applications of VCSELs are described. The structure and characteristics of VCSELs in optical video links are summarized. The technical issues of the next generation optical video links for the mass market are discussed.

Shin, Hyun-Kuk

321

Camera View-Based American Football Video Analysis  

Microsoft Academic Search

We present a top-down statistical modeling approach to explore the semantic structure in American football video. First, a semantic space is defined where the video semantic structure is characterized by semantic units, a dynamic model over semantic units, and an observation model for mapping the semantic units with the visual features. Then, a new hidden Markov model (HMM)-based video generative

Yi Ding; Guoliang Fan

2006-01-01

322

Simulating Indirect Network Effects in the Video Game Market  

Microsoft Academic Search

Since the 1970s, seven generations of consoles have competed in the video games market. Today video game industry sales even surpass the box-office results of the movie industry. The history of video games provides numerous examples of former successful console vendors failing to establish technologically superior successors of their consoles. This is mostly due to dependencies of console manufacturers on

Jochen Strube; Sven Schade; Patrick Schmidt; Peter Buxmann

2007-01-01

323

Personalized video adaptation based on video content analysis  

Microsoft Academic Search

Personalized video adaptation is expected to satisfy individual users' needs on video content. Multimedia data mining plays a significant role of video annotation to meet users' preference on video content. In this paper, a comprehensive solution for personalized video adaptation is proposed based on video content mining. Video content mining targets both cognitive content and affective content. Cognitive content refers

Min Xu; Jesse S. Jin; Suhuai Luo

2008-01-01

324

Video imaging systems: A survey  

SciTech Connect

Recent technological advances in the field of electronics have made video imaging a viable substitute for the traditional Polaroid/trademark/ picture used to create photo ID credentials. New families of hardware and software products, when integrated into a system, provide an exciting and powerful toll which can be used simply to make badges or enhance an access control system. This report is designed to make the reader aware of who is currently in this business and compare their capabilities.

Kefauver, H.L.

1989-07-01

325

Situational simulations in interactive video  

SciTech Connect

The Westinghouse Hanford Company Advanced Training Technologies section is using situational simulations in several Interactive Video training courses. Two applications of situational simulations will be discussed. In the first, used in the Hanford General Employee Training course, the student evaluates employee's actions in simulations of possible workplace situations. In the second, used in the Criticality Safety course, students must follow well-defined procedures to complete tasks. Design and incorporation of situational simulations will be discussed. 3 refs.

Smith, L.J.

1991-07-01

326

Seamless Video Streaming for Video on Demand Services in Vertical Handoff  

Microsoft Academic Search

\\u000a Vertical handoff is required to achieve anywhere and anytime internet access in the fourth generation (4G) network providing\\u000a interoperability between universal mobile telecommunications system (UMTS) and wireless LAN (WLAN). However, video data can\\u000a be lost due to latency caused by vertical handoff. To solve this problem, in this paper, we propose a video streaming method\\u000a for video on demand (VOD)

Jae-won Kim; Hye-soo Kim; Jae-woong Yun; Hyeong-min Nam; Sung-jea Ko

2005-01-01

327

The Application of Video Semantics and Theme Representation in Automated Video Editing  

Microsoft Academic Search

This paper considers the automated generation of humorous video sequences from arbitrary video material. We present a simplified\\u000a model of the editing process. We then outline our approach to narrativity and visual humour, discuss the problems of context\\u000a and shot-order in video and consider influences on the editing process. We describe the role of themes and semantic fields\\u000a in the

Frank Nack; Alan P. Parkes

1997-01-01

328

Advances towards next-generation flexible multi-projector display walls  

Microsoft Academic Search

Multi-projector displays provide a large-scale and a high-resolution view at the same time. Today, projectors are commodity products, making such displays are affordable, but several challenges must be overcome in order to make this technology available to everyday users. We present several advances in the area of multiprojector displays. These employ projectors with enhanced capabilities, methodologies for efficiently and inexpensively

Ezekiel S. Bhasker; Ray Juang; Aditi Majumder

2007-01-01

329

Multiscale Modeling of the Deformation of Advanced Ferritic Steels for Generation IV Nuclear Energy  

SciTech Connect

The objective of this project is to use the multi-scale modeling of materials (MMM) approach to develop an improved understanding of the effects of neutron irradiation on the mechanical properties of high-temperature structural materials that are being developed or proposed for Gen IV applications. In particular, the research focuses on advanced ferritic/ martensitic steels to enable operation up to 650-700°C, compared to the current 550°C limit on high-temperature steels.

Nasr M. Ghoniem; Nick Kioussis

2009-04-18

330

Next generation grinding spindle for cost-effective manufacture of advanced ceramic components  

SciTech Connect

Finish grinding of advanced structural ceramics has generally been considered an extremely slow and costly process. Recently, however, results from the High-Speed, Low-Damage (HSLD) program have clearly demonstrated that numerous finish-process performance benefits can be realized by grinding silicon nitride at high wheel speeds. A new, single-step, roughing-process capable of producing high-quality silicon nitride parts at high material removal rates while dramatically reducing finishing costs has been developed.

Kovach, J.A.; Laurich, M.A.

2000-01-01

331

Comparison of Hydroxyl Radical Generation for Various Advanced Oxidation Combinations as Applied to Foundries  

Microsoft Academic Search

The authors monitored hydrogen peroxide (H2O2), ozone (O3), and apparent hydroxyl radical (OH·) concentrations in the liquid phase, along with gas phase ozone when operating an advanced oxidation (AO) system that included H2O2, O3, sonication, and underwater plasma (UWAP). The OH· radical converted non-fluorescent terephthalic acid to fluorescent hydroxyterephthalic acid (HTA). As determined from HTA formation, when a 500 ppm

Nohemi Milan-Segovia; Yujue Wang; Fred S. Cannon; Robert C. Voigt; James C. Furness

2007-01-01

332

Advanced Corrosion-Resistant Zr Alloys for High Burnup and Generation IV Applications  

SciTech Connect

The objective of this collaboration between four institutions in the US and Korea is to demonstrate a technical basis for the improvement of the corrosion resistance of zirconium-based alloys in more extreme operating environments (such as those present in severe fuel duty,cycles (high burnup, boiling, aggressive chemistry) andto investigate the feasibility (from the point of view of corrosion rate) of using advanced zirconium-based alloys in a supercritical water environment.

Arthur Motta; Yong Hwan Jeong; R.J. Comstock; G.S. Was; Y.S. Kim

2006-10-31

333

Distributed scientific video movie making  

SciTech Connect

We describe a versatile, low cost, video movie making system for generating and displaying scientific graphics from remote supercomputers. The system makes video movies by single frame animation from the output of time dependent, numerical simulations typically done on supercomputers. The system uses extensive data compression to permit its use over wide area, as well as local area networks. The system demonstrates an easily used, elementary visualization capability for time dependent data in a heterogeneous, distributed computing environment. 18 refs., 2 figs., 1 tab.

Johnston, W.E.; Hall, D.E.; Huang, J.; Rible, M.; Robertson, D.

1988-03-01

334

Next Generation Life Support Project: Development of Advanced Technologies for Human Exploration Missions.  

National Technical Information Service (NTIS)

Next Generation Life Support (NGLS) is one of several technology development projects sponsored by the National Aeronautics and Space Administration s Game Changing Development Program. NGLS is developing life support technologies (including water recover...

D. J. Barta

2012-01-01

335

Advanced Combustion Systems for Next Generation Gas Turbines. (Final Report, June 2002-December 2005).  

National Technical Information Service (NTIS)

Next generation turbine power plants will require high efficiency gas turbines with higher pressure ratios and turbine inlet temperatures than currently available. These increases in gas turbine cycle conditions will tend to increase NOx emissions. As the...

C. Russell J. Haynes J. Janssen M. Huffman

2006-01-01

336

DESIGN, FABRICATION, AND TESTING OF AN ADVANCED, NON-POLLUTING TURBINE DRIVE GAS GENERATOR  

SciTech Connect

The objective of this report period was to continue the development of the Gas Generator design, completion of the hardware and ancillary hardware fabrication and commence the Test Preparations for the testing of the non-polluting unique power turbine driven Gas Generator. Focus during this report period has been on completing the Gas Generator fabrication of hardware and ancillary hardware, and completion of unit closeout brazing and bonding. Because of unacceptable delays encountered in a previously competitively selected test site, CES initiated a re-competition of our testing program and selected an alternate test site. Following that selection, CES used all available resources to make preparations for testing the 10 Mw Gas Generator at the new testing site facilities of NTS at Saugus, CA.

E.W. (Gene) Baxter

2002-06-30

337

Advanced control of a boost AC-DC PWM rectifier for variable-speed induction generator  

Microsoft Academic Search

This paper describes simple control structures for vector controlled stand-alone induction generator (IG) used to operate under variable speeds. Different control principles, indirect vector control and deadbeat current control, are developed for a voltage source PWM converter and the three-phase variable speed squirrel-cage IG to regulate DC-link and generator voltages with newly designed phase locked loop circuit. The required reactive

Tarek Ahmed; Mutsuo Nakaoka; Toshihiko Tanaka; Katsumi Nishida

2006-01-01

338

Elements of an advanced pattern generator for 130- to 100-nm maskmaking  

Microsoft Academic Search

In response to next-generation mask requirements, Etec Systems, Inc has developed a complete raster-based patterning solution to meet the production needs of the 130 nm IC device generation as well as those for early 100 nm production. In developing this new MEBES system, we have aimed at versatility, extendability, and compatibility with conventional high-contrast resists and redesigned it form the

Varoujan Chakarian; Charles A. Sauer; Bassam Shamoun; Frank Chilese; David Trost; Marek Zywno; Ulrich Hofmann; Robin Teitzel; Richard Prior; Frederick Raymond; Abe Ghanbari; Frank E. Abboud

2000-01-01

339

Advances and challenges in the development of power-generation systems at small scales  

Microsoft Academic Search

The miniaturization of electro-mechanical devices, and the resulting need for micro-power generation (milliwatts to watts) with low weight, long life devices, has lead to the recent development of the field of micro-scale combustion and power generation. The primary objective of this new field is to leverage the high energy density of fuels, specifically liquid hydrocarbon fuels relative to batteries and

David C. Walther; Jeongmin Ahn

2011-01-01

340

Advancements in reprogramming strategies for the generation of induced pluripotent stem cells  

Microsoft Academic Search

Direct reprogramming of somatic cells into induced pluripotent stem (iPS) cells has emerged as an invaluable method for generating\\u000a patient-specific stem cells of any lineage without the use of embryonic materials. Following the first reported generation\\u000a of iPS cells from murine fibroblasts using retroviral transduction of a defined set of transcription factors, various new\\u000a strategies have been developed to improve

Mei I. Lai; Wai Yeng Wendy-Yeo; Rajesh Ramasamy; Norshariza Nordin; Rozita Rosli; Abhi Veerakumarasivam; Syahril Abdullah

2011-01-01

341

Monolithic solid oxide fuel cell technology advancement for coal-based power generation. Annual report, October 1991--September 1992  

SciTech Connect

The program is being conducted by a team consisting of AlliedSignal Aerospace Systems & Equipment (ASE) (formerly AiResearch Los Angeles Division) and Argonne National Laboratory (ANL). The objective of the program is to advance materials and fabrication methodologies to develop a monolithic solid oxide fuel cell (MSOFC) system capable of meeting performance, life, and cost goals for coal-based power generation. The program focuses on materials research and development, fabrication process development, cell/stack performance testing and characterization, cost and system analysis, and quality development.

Not Available

1993-05-01

342

A 3rd Generation Advanced High-Strength Steel (AHSS) Produced by Dual Stabilization Heat Treatment (DSHT)  

NASA Astrophysics Data System (ADS)

A 3rd generation advanced high-strength steel containing, in wt pct, 0.3 C, 4.0 Mn, 1.5 Al, 2.1 Si, and 0.5 Cr has been produced using a dual stabilization heat treatment—a five stage thermal processing schedule compatible with continuous galvanized steel production. In excess of 30 vol pct retained austenite containing at least 0.80 wt pct C was achieved with this alloy, which had tensile strengths up to 1650 MPa and tensile elongations around 20 pct.

Qu, Hao; Michal, Gary M.; Heuer, Arthur H.

2013-10-01

343

Online scene change detection of multicast (MBone) video  

NASA Astrophysics Data System (ADS)

Many multimedia applications, such as multimedia data management systems and communication systems, require efficient representation of multimedia content. Thus semantic interpretation of video content has been a popular research area. Currently, most content-based video representation involves the segmentation of video based on key frames which are generated using scene change detection techniques as well as camera/object motion. Then, video features can be extracted from key frames. However most of such research performs off-line video processing in which the whole video scope is known as a priori which allows multiple scans of the stored video files during video processing. In comparison, relatively not much research has been done in the area of on-line video processing, which is crucial in video communication applications such as on-line collaboration, news broadcasts and so on. Our research investigates on-line real-time scene change detection of multicast video over the Internet. Our on-line processing system are designed to meet the requirements of real-time video multicasting over the Internet and to utilize the successful video parsing techniques available today. The proposed algorithms extract key frames from video bitstreams sent through the MBone network, and the extracted key frames are multicasted as annotations or metadata over a separate channel to assist in content filtering such as those anticipated to be in use by on-line filtering proxies in the Internet. The performance of the proposed algorithms are demonstrated and discussed in this paper.

Zhou, Wensheng; Shen, Ye; Vellaikal, Asha; Kuo, C.-C. Jay

1998-10-01

344

A next-generation in-situ nanoprobe beamline for the Advanced Photon Source  

NASA Astrophysics Data System (ADS)

The Advanced Photon Source is currently developing a suite of new hard x-ray beamlines, aimed primarily at the study of materials and devices under real conditions. One of the flagship beamlines of the APS Upgrade is the In-Situ Nanoprobe beamline (ISN beamline), which will provide in-situ and operando characterization of advanced energy materials and devices under change of temperature and gases, under applied fields, in 3D. The ISN beamline is designed to deliver spatially coherent x-rays with photon energies between 4 keV and 30 keV to the ISN instrument. As an x-ray source, a revolver-type undulator with two interchangeable magnetic structures, optimized to provide high brilliance throughout the range of photon energies of 4 keV - 30 keV, will be used. The ISN instrument will provide a smallest hard x-ray spot of 20 nm using diffractive optics, with sensitivity to sub-10 nm sample structures using coherent diffraction. Using nanofocusing mirrors in Kirkpatrick-Baez geometry, the ISN will also provide a focus of 50 nm with a flux of 8·1011 Photons/s at a photon energy of 10 keV, several orders of magnitude larger than what is currently available. This will allow imaging of trace amounts of most elements in the periodic table, with a sensitivity to well below 100 atoms for most metals in thin samples. It will also enable nanospectroscopic studies of the chemical state of most materials relevant to energy science. The ISN beamline will be primarily used to study inorganic and organic photovoltaic systems, advanced batteries and fuel cells, nanoelectronics devices, and materials and systems diesigned to reduce the environmental impact of combustion.

Maser, Jörg; Lai, Barry; Buonassisi, Tonio; Cai, Zhonghou; Chen, Si; Finney, Lydia; Gleber, Sophie-Charlotte; Harder, Ross; Jacobsen, Chris; Liu, Wenjun; Murray, Conal; Preissner, Curt; Roehrig, Chris; Rose, Volker; Shu, Deming; Vine, David; Vogt, Stefan

2013-09-01

345

Video Browsing on Handheld Devices  

NASA Astrophysics Data System (ADS)

Recent improvements in processing power, storage space, and video codec development enable users now to playback video on their handheld devices in a reasonable quality. However, given the form factor restrictions of such a mobile device, screen size still remains a natural limit and - as the term "handheld" implies - always will be a critical resource. This is not only true for video but any data that is processed on such devices. For this reason, developers have come up with new and innovative ways to deal with large documents in such limited scenarios. For example, if you look at the iPhone, innovative techniques such as flicking have been introduced to skim large lists of text (e.g. hundreds of entries in your music collection). Automatically adapting the zoom level to, for example, the width of table cells when double tapping on the screen enables reasonable browsing of web pages that have originally been designed for large, desktop PC sized screens. A multi touch interface allows you to easily zoom in and out of large text documents and images using two fingers. In the next section, we will illustrate that advanced techniques to browse large video files have been developed in the past years, as well. However, if you look at state-of-the-art video players on mobile devices, normally just simple, VCR like controls are supported (at least at the time of this writing) that only allow users to just start, stop, and pause video playback. If supported at all, browsing and navigation functionality is often restricted to simple skipping of chapters via two single buttons for backward and forward navigation and a small and thus not very sensitive timeline slider.

Hürst, Wolfgang

346

Smart vehicle video management  

US Patent & Trademark Office Database

A method includes selecting a video source view from at least one of a plurality of vehicle-mounted video sources based on detection of a vehicle event. The video source view may be displayed according to a presentation mode. The method may include associating a plurality of vehicle events with a video source view or video presentation mode. A system includes display logic selecting a video source view from a plurality of vehicle-mounted video sources based on detection of a vehicle event. The system can include presentation rules specifying an association between a plurality of vehicle events and a video source view and/or a video presentation mode. The presentation rules are editable and configurable.

Luskin; Eugene (Issaquah, WA); Petrochuk; Andrew (Bellevue, WA); Kizhnerman; David (Kirkland, WA)

2008-12-09

347

Techniques for video indexing  

NASA Astrophysics Data System (ADS)

A data model for long objects (such as video files) is introduced, to support general referencing structures, along with various system implementation strategies. Based on the data model, various indexing techniques for video are then introduced. A set of basic functionalities is described, including all the frame level control, indexing, and video clip editing. We show how the techniques can be used to automatically index video files based on closed captions with a typical video capture card, for both compressed and uncompressed video files. Applications are presented using those indexing techniques in security control and viewers' rating choice, general video search (from laser discs, CD ROMs, and regular disks), training videos, and video based user or system manuals.

Chen, C.-Y. Roger; Meliksetian, Dikran S.; Liu, Larry J.; Chang, Martin C.

1996-01-01

348

Advanced Wind Turbine Program Next Generation Turbine Development Project: June 17, 1997--April 30, 2005  

SciTech Connect

This document reports the technical results of the Next Generation Turbine Development Project conducted by GE Wind Energy LLC. This project is jointly funded by GE and the U.S. Department of Energy's National Renewable Energy Laboratory.The goal of this project is for DOE to assist the U.S. wind industry in exploring new concepts and applications of cutting-edge technology in pursuit of the specific objective of developing a wind turbine that can generate electricity at a levelized cost of energy of $0.025/kWh at sites with an average wind speed of 15 mph (at 10 m height).

GE Wind Energy, LLC

2006-05-01

349

Development of PbTe material for advanced thermoelectric power generation  

NASA Astrophysics Data System (ADS)

In this paper, development of single crystalline n- and p- type PbTe crystals and PbTe bulk nanocomposites using PbTe nano powders and emerging field assisted sintering technology (FAST) are discussed. Materials requirements for efficient thermoelectric power generation using waste heat at intermediate temperature range (6500 to 8500 K) will be discussed. Recent results on production of n- and p- type PbTe crystals and their thermoelectric characterization will be presented. Relative characteristics and performance of PbTe bulk single crystals and nano composites for thermoelectric power generation will be discussed.

Prasad, Narasimha S.; Trivedi, Sudhir B.; Palosz, Witold; Rosemeier, Robert; Rosemeier, Cory; Kutcher, Susan; Mayers, David; Taylor, Patrick J.; Maddux, Jay; Singh, Jogender

2012-05-01

350

Control of hybrid wind power generation system with dump load using advanced fuzzy-robust controller  

Microsoft Academic Search

This paper proposes a modeling and controller design approach for a hybrid wind power generation system that considers a fixed wind-turbine and a dump load. Since operating conditions are kept changing, it is challenge to design a control for reliable operation of the overall system. To consider variable operating conditions, Takagi-Sugeno (TS) fuzzy model is taken into account to represent

Hee-Sang Ko; Gi-Gap Yoon; Won-Pyo Hong; Juri Jatskevich

2007-01-01

351

Recent Advance of Hydride Generation-Analytical Atomic Spectrometry: Part II- Analysis of Real Samples  

Microsoft Academic Search

As an extended discussion of Part I, this review provides a survey of the literature about the elemental and speciation analysis of hydride-forming and non-hydride forming elements in real samples by using hydride generation-analytical atomic spectrometry based on the recently developed technique summarized in Part I, with emphesis on the sample pretreatment methods and interference elimination.

Zhou Long; Chen Chen; Xiandeng Hou; Chengbin Zheng

2012-01-01

352

Recent Advance of Hydride Generation–Analytical Atomic Spectrometry: Part II—Analysis of Real Samples  

Microsoft Academic Search

Abstract: As an extended discussion of Part I, this review provides a survey of the literature about the elemental and speciation analysis of hydride-forming and non-hydride-forming elements in real samples by using hydride generation–analytical atomic spectrometry based on the recently developed technique summarized in Part I, with emphasis on the sample pretreatment methods and interference elimination.

Zhou Long; Chen Chen; Xiandeng Hou; Chengbin Zheng

2012-01-01

353

FPGA-based optical transmitters for electronic predistortion and advanced signal format generation  

Microsoft Academic Search

We describe an optical transmitter, based on field programmable gate arrays, carrying out real-time DSP at 21.4 GSa\\/s. We implemented electronic predistortion at 10.7 Gb\\/s, and 8.35 Gb\\/s optical orthogonal frequency division multiplexed (OFDM) signal generation.

R. I. Killey; P. M. Watts; Y. Benlachtar; R. Waegemans; R. Bouziane; R. Thiruneelakandan; P. A. Milder; D. Rangaraj; A. Cartolano; R. Koutsoyannis; J. C. Hoe; M. Puschel; M. Glick; P. Bayvel

2009-01-01

354

Advanced technologies for co-processing fossil and biomass resources for transportation fuels and power generation  

Microsoft Academic Search

Over the past few decades, a number of processes have been proposed or are under development for coprocessing fossil fuel and biomass for transportation fuels and power generation. The paper gives a brief description of the following processes: the Hydrocarb system for converting biomass and other carbonaceous fuels to elemental carbon and hydrogen, methane or methanol; the Hynol process where

M. Steinberg; Y. Dong

2004-01-01

355

Advanced Calibration for Quantitative Astrophysics: 2nd Generation VLT Instruments and Beyond  

NASA Astrophysics Data System (ADS)

We describe the activities of the Calibration and Modeling Support Group (CMG) in ESO’s Instrumentation division related to the calibration and physical description of the instrument with the objective to support the data reduction of science data and to facilitate operations. We summarize the concept and lessons learned with a view to future applications in 2nd generation VLT instruments and beyond.

Kerber, Florian; Bristow, Paul; Rosa, Michael R.

356

Advancing Candidate Link Generation for Requirements Tracing: The Study of Methods  

Microsoft Academic Search

This paper addresses the issues related to improving the overall quality of the dynamic candidate link generation for the requirements tracing process for Verification and Validation and Independent Verification and Validation analysts. The contribution of the paper is four-fold: We define goals for a tracing tool based on analyst responsibilities in the tracing process, we introduce several new measures for

Jane Huffman Hayes; Alex Dekhtyar; Senthil Karthikeyan Sundaram

2006-01-01

357

Next Generation of Risk Assessment: Incorporation of Recent Advances in Molecular, Computational and Systems Biology  

EPA Science Inventory

The Next Generation (NexGen) Risk Assessment program was initiated in 2010 as a multi-year, multi-organization effort to consider new molecular, computational, and systems biology approaches for use in risk assessments. The goal is to enable faster, less expensive, and more robus...

358

Advances Towards Automatic Surface Domain Decomposition and Grid Generation for Overset Grids.  

National Technical Information Service (NTIS)

An algorithm for surface domain decomposition and grid generation for overset grids is described. A complex surface domain is covered by two types of grids: seam grids and block grids. Seam grids are grids used to wrap around surface crease lines and regi...

R. L. Meakin W. M. Chan

1997-01-01

359

47 CFR 79.3 - Video description of video programming.  

Code of Federal Regulations, 2010 CFR

...Telecommunication 4 2009-10-01 2009-10-01 false Video description of video programming. 79.3 Section 79.3 Telecommunication... BROADCAST RADIO SERVICES CLOSED CAPTIONING AND VIDEO DESCRIPTION OF VIDEO PROGRAMMING § 79.3...

2009-10-01

360

47 CFR 79.3 - Video description of video programming.  

Code of Federal Regulations, 2010 CFR

...Telecommunication 4 2010-10-01 2010-10-01 false Video description of video programming. 79.3 Section 79.3 Telecommunication... BROADCAST RADIO SERVICES CLOSED CAPTIONING AND VIDEO DESCRIPTION OF VIDEO PROGRAMMING § 79.3...

2010-10-01

361

Measurements of nonlinear harmonic generation at the Advanced Photon Source's SASE FEL  

SciTech Connect

SASE saturation was recently achieved at the Advanced Photon Source's SASE FEL in the low-energy undulator test line (LEUTL) at 530 nm and 385 nm. The electron beam microbunching becomes more and more prominent until saturation is achieved. This bunching causes nonlinear harmonic emission that extends the usefulness of a SASE system in achieving shorter FEL wavelengths for the same electron beam energy. They have investigated the intensity of the fundamental and second-harmonic undulator radiation as a function of distance along the undulator line and present the experimental results and compare them to numerical simulations. In addition, they have measured the single-shot second harmonic spectra as well as the simultaneous fundamental and second harmonic spectra and present the experimental results.

Biedron, S.G.; Dejus, E.J.; Huang, Z.; Milton, S.V.; Sajaev, V.; Berg, W.; Borland, M.; Den Hartog, P.K.; Erdmann, M.; Fawley, W.M.; Gluskin, E.; Kim, K.-J.; Lewellen, J.W.; Li, Y.; Moog, E.R.; Nassiri, A.; Wiermerslage, G.; Yang, B.X.

2002-03-01

362

Advanced electron-beam pattern generation technology for 180-nm masks  

NASA Astrophysics Data System (ADS)

Optical lithography will be the dominant technique used for 180 nm generation production devices. With a reduced feature size on the wafer, 4X optical reduction, optical proximity correction (OPC), and phase shift lithography techniques, mask-related errors become even more critical to wafer yield. In addition, small feature sizes and lithography enhancement techniques require finer edge resolution. Clearly, new patten generation tools are needed for this generation of maskmaking requirements. Multipass gray (MPG) writing strategy was introduced with the MEBESR 4500S. The ability to deliver a 4X improvement in dose while improving throughput is a significant advantage over previous MEBES systems. Since MPG is used in conjunction with offset scan voting, reduction in butting of over 50% has been demonstrated with MPG. Higher doses are now possible with use of a multipass writing strategy and a brighter source. As a result, resists with higher contrast and process robustness can be used. A significant improvement in uniformity is noted with the new process, an essential step needed in meeting 180 nm requirements. Dry etch is essential to meet these new requirements and with sufficient process margin to be manufacturable. This paper describes the key electron-beam pattern generation technology necessary to meet the requirement of 180 nm masks, including a high dose field- emission gun and column capable of delivering 800 A/cm2; complete dynamic beam correction; a digital stage servo to provide stable, reproducible stage control under high acceleration conditions; a high speed data path to support 320 MHz beam blanking and a 10 nm data address. This paper also examines the improvements made to the MEBES platform and documents the resulting improvements and compares these results to the requirements for 180 nm masks.

Abboud, Frank E.; Sauer, Charles A.; Wang, William; Vernon, Matthew; Prior, Richard; Pearce-Percy, Henry T.; Cole, Damon M.; Mankos, Marian

1997-02-01

363

Organic materials for second-harmonic generation: advances in relating structure to function  

Microsoft Academic Search

The relationships between molecular structure and the nonlinear optical phenomenon second-harmonic generation (SHG) are discussed. New-found relationships built up from basic structural axioms that were deduced in the 1970s and 1980s are the particular focus of this article, using structural results from X-ray and neutron-diffraction studies. The molecular and supramolecular manifestations of the SHG effect are borne out, although ways

Jacqueline M. Cole

2003-01-01

364

Carbon dioxide capture and separation techniques for advanced power generation point sources  

Microsoft Academic Search

The capture\\/separation step for carbon dioxide (CO2) from large-point sources is a critical one with respect to the technical feasibility and cost of the overall carbon sequestration scenario. For large-point sources, such as those found in power generation, the carbon dioxide capture techniques being investigated by the in-house research area of the National Energy Technology Laboratory possess the potential for

H. W. Pennline; D. R. Luebke; B. I. Morsi; Y. J. Heintz; K. L. Jones; J. B. Ilconich

2006-01-01

365

Generation of nanoparticles with adjustable size and controlled stoichiometry: recent advances.  

PubMed

We present a bottom-up fabrication route based on the sputtering gas aggregation source that allows the generation of nanoparticles with controllable and tunable chemical composition while keeping the control of the cluster size. We demonstrate that the chemical composition of the particles can be monitored by the individual adjustment of the working parameters of the magnetrons inserted in a gas aggregation zone. Such control of the parameters leads to a fine control of the ion density of each target material and hence to the control of the chemical composition of the nanoparticles. In particular, we show through X-ray photoemission, atomic force microscopy, and high-resolution transmission electron microscopy that it is possible to generate bimetallic (AgAu) and trimetallic (AgAuPd) alloy nanoparticles with well-defined and tunable stoichiometries from three targets of pure Ag, Au, and Pd. The proposed route for the generation of nanoparticles opens new possibilities for the fabrication of nanoparticles using a physical method that, for some applications, could be complementary to the chemical methods. PMID:22788661

Martínez, L; Díaz, M; Román, E; Ruano, M; Llamosa P, D; Huttel, Y

2012-07-20

366

On-sun test results from second-generation and advanced-concepts alkali-metal pool-boiler receivers  

SciTech Connect

Two 75-kW{sub t} alkali-metal pool-boiler solar receivers have been successfully tested at Sandia National Laboratories` National Solar Thermal Test Facility. The first one, Sandia`s `` second-generation pool-boiler receiver,`` was designed to address commercialization issues identified during post-test assessment of Sandia`s first-generation pool-boiler receiver. It was constructed from Haynes alloy 230 and contained the alkali-metal alloy NaK-78. The absorber`s wetted side had a brazed-on powder-metal coating to stabilize boiling. This receiver was evaluated for boiling stability, hot- and warm-restart behavior, and thermal efficiency. Boiling was stable under all conditions. All of the hot restarts were successful. Mild transient hot spots observed during some hot restarts were eliminated by the addition of 1/3 torr of xenon to the vapor space. All of the warm restarts were also successful. The heat-transfer crisis that damaged the first receiver did not recur. Thermal efficiency was 92.3% at 750{degrees}C with 69.6 kW{sub t} solar input. The second receiver tested, Sandia`s ``advanced-concepts receiver,`` was a replica of the first-generation receiver except that the cavities, which were electric-discharge-machined in the absorber for boiling stability, were eliminated. This step was motivated by bench-scale test results that showed that boiling stability improved with increased heated-surface area, tilt of the heated surface from vertical, and added xenon. The bench-scale results suggested that stable boiling might be possible without heated-surface modification in a 75-kW{sub t} receiver. Boiling in the advanced-concepts receiver with 1/3 torr of xenon added has been stable under all conditions, confirming the bench-scale tests.

Moreno, J.B.; Andraka, C.E.; Moss, T.A.; Cordeiro, P.G.; Dudley, V.E.; Rawlinson, K.S.

1994-05-01

367

Video Google: Efficient Visual Search of Videos  

Microsoft Academic Search

We describe an approach to object retrieval which searches for and localizes all the occurrences of an object in a video, given a query image of the object. The object is represented by a set of viewpoint invariant region descriptors so that recognition can proceed successfully despite changes in viewpoint, illumination and partial occlusion. The temporal continuity of the video

Josef Sivic; Andrew Zisserman

2006-01-01

368

Video Surveillance Unit.  

National Technical Information Service (NTIS)

The Video Surveillance Unit (VSU) has been designed to provide a flexible, easy to operate video surveillance and recording capability for permanent rack-mounted installations. The system consists of a single rack-mountable chassis and a camera enclosure....

R. L. Martinez C. S. Johnson

1990-01-01

369

Bioenergy: Educational Videos  

NSDL National Science Digital Library

The Ohio State University provides this page of educational videos related to bioenergy. Four videos are included demonstrating an anaerobic digestion experiment, showing algae research to reduce carbon emissions, using methane to produce energy, and creating fuel from landfills.

2013-06-25

370

Video Event Detection Framework on Large-Scale Video Data  

ERIC Educational Resources Information Center

|Detection of events and actions in video entails substantial processing of very large, even open-ended, video streams. Video data present a unique challenge for the information retrieval community because properly representing video events is challenging. We propose a novel approach to analyze temporal aspects of video data. We consider video

Park, Dong-Jun

2011-01-01

371

VideoSense: towards effective online video advertising  

Microsoft Academic Search

With Internet delivery of video content surging to an un- precedented level, online video advertising is becoming in- creasingly pervasive. In this paper, we present a novel ad- vertising system for online video service called VideoSense, which automatically associates the most relevant video ads with online videos and seamlessly inserts the ads at the most appropriate positions within each individual

Tao Mei; Xian-sheng Hua; Linjun Yang; Shipeng Li

2007-01-01

372

Video Event Detection Framework on Large-Scale Video Data  

ERIC Educational Resources Information Center

Detection of events and actions in video entails substantial processing of very large, even open-ended, video streams. Video data present a unique challenge for the information retrieval community because properly representing video events is challenging. We propose a novel approach to analyze temporal aspects of video data. We consider video data…

Park, Dong-Jun

2011-01-01

373

A VLSI architecture for variable block size video motion estimation  

Microsoft Academic Search

With the advent of new video standards such as MPEG-4 part-10 and H.264\\/H.26L, demands for advanced video coding, particularly in the area of variable block size video motion estimation (VBSME), are increasing. In this paper, we propose a new one-dimensional (1-D) very large-scale integration architecture for full-search VBSME (FSVBSME). The VBS sum of absolute differences (SAD) computation is performed by

Swee Yeow Yap; J. V. McCanny

2004-01-01

374

Emerging magnetic technologies for consumer audio\\/video (invited)  

Microsoft Academic Search

In the field of consumer audio\\/video, digital technology is the natural path for advancement. In audio systems, it has just been introduced in the form of digital compact cassette tape recorder and mini disk system in which magneto-optical recording is used. Therefore, the digital video instruments, such as small cassette digital video tape recorders (VTR) for high-definition television and static

Hideo Fujiwara

1993-01-01

375

High-temperature coal-syngas plasma characteristics for advanced MHD power generation  

SciTech Connect

Properties of magnetohydrodynamic (MHD) plasma based on syngas (CO, H{sub 2}) combustion products were investigated experimentally with shock tube facility. The experiments were carried out under various MHD generator load and shock tube operation conditions. Important characteristics of syngas plasma such as temperature, electric field, conductivity, and total output power were directly measured and evaluated. Special attention was paid to the influence of syngas composition (CO : H{sub 2} : O{sub 2} ratio). The results show that syngas combustion can provide high plasma ionization and attainable plasma electrical conductivity has an order of 60-80 S/m at gas temperature 3100-3300 K.

Mikheev, A.V.; Kayukawa, N.; Okinaka, N.; Kamada, Y.; Yatsu, S. [Hokkaido University, Hokkaido (Japan)

2006-03-15

376

3D Video Recorder  

Microsoft Academic Search

We present the 3D Video Recorder, a system capable of recording, processing, and playing three-dimensional video from multiple points of view. We first record 2D video streams from several synchronized digital video cameras and store pre-processed images to disk. An off-line process- ing stage converts these images into a time-varying three- dimensional hierarchical point-based data structure and stores this 3D

Stephan Würmlin; Edouard Lamboray; Oliver G. Staadt; Markus H. Gross

2002-01-01

377

Informedia Digital Video Library  

Microsoft Academic Search

The Informedia Digital Video Library Project is developing new technologies for creating full-content search and retrieval digital video libraries. Working in collaboration with WQED Pittsburgh, the project is creating a testbed that will enable K-12 students to access, explore, and retrieve science and mathematics materials from the digital video library. The library will initially contain 1,000 hours of video from

Michael G. Christel; Takeo Kanade; M. Mauldin; Raj Reddy; Marvin A. Sirbu; Scott M. Stevens; Howard D. Wactlar

1995-01-01

378

Advanced wavefront correction technology for the next generation of adaptive optics equipped ophthalmic instrumentation  

NASA Astrophysics Data System (ADS)

Adaptive optics (AO) is becoming increasingly important in improving system resolution in flood illuminated fundus cameras, confocal laser scanning ophthalmoscopes (cSLO) and optical coherence tomography (OCT). For the latter two cases, AO also provides an increase in the throughput light levels. The flood and cSLO modalities have allowed for the routine, in-vivo visualization of individual cone photoreceptor cells and real time blood flow measurements of single leukocyte cells. Most recently, evidence of the rod mosaic has also been observed. A key component in all of these systems is the deformable mirror (DM) that provides the correction of the high order aberrations. The majority of these systems to-date have utilized large, expensive DMs originally designed for astronomy. This paper details ongoing work at Iris AO, Inc in which advanced fabrication techniques based on microelectromechanical systems (MEMS) are being leveraged. This approach yields extremely compact DMs that offer higher performance and lower cost, coupled with the ability for batch fabrication. The Iris AO design uses an array of individually addressable hexagonal segments than can each be moved in three orthogonal directions. Such a design allows for superior ocular wavefront fitting performance and very high stroke (>10 microns). Additionally, our DMs can be fabricated with diameters that are an order of magnitude smaller than conventional non-MEMS techniques.

Doble, Nathan; Helmbrecht, Michael; Hart, Matthew; Juneau, Thor

2005-04-01

379

Elements of an advanced pattern generator for 130- to 100-nm maskmaking  

NASA Astrophysics Data System (ADS)

In response to next-generation mask requirements, Etec Systems, Inc has developed a complete raster-based patterning solution to meet the production needs of the 130 nm IC device generation as well as those for early 100 nm production. In developing this new MEBES system, we have aimed at versatility, extendability, and compatibility with conventional high-contrast resists and redesigned it form the ground up. This MEBES system incorporates many technological innovations, such as anew 50 kV electron-beam (e-beam) column, a new raster graybeam writing strategy, a new stage, an integrated automated material handling system, on-board diagnostics, and environmental/thermal control. A discussion of architectural details of the new MEBES system designed to meet the tight requirements of 130-100 nm technology nodes is presented. This comprehensive patterning solution offers the best combination of benefits to the user in terms of versatility, overall system throughput, and extendability. Initial throughput and lithographic performance benchmarks are also presented and are very promising in predicting the ability to meet critical dimension uniformity requirements of 10nm or better, as predicted by the ITRS requirements.

Chakarian, Varoujan; Sauer, Charles A.; Shamoun, Bassam; Chilese, Frank; Trost, David; Zywno, Marek; Hofmann, Ulrich; Teitzel, Robin; Prior, Richard; Raymond, Frederick; Ghanbari, Abe; Abboud, Frank E.

2000-07-01

380

High fidelity thermal modeling and other recent advancements toward realistic spectral scene generation of vegetated areas  

NASA Astrophysics Data System (ADS)

Vehicles concealed in highly-cluttered, vegetated scene environments pose significant challenges for passive sensor systems and algorithms. System analysts working hypersectral exploitation research require and at-aperature simulation capability that allows them to reliably investigate beyond ther highly-limited scenarios that expensive field data sets provide. To be useful to the analyst, such a simulation should address the following requirements: (1) the ability to easily generate scene representations for abritrary Earth regions of tactical interests; (2) the ability to represent scene components, like terrain, trees and bushes, to an extremely high spatial resolution for calculation of accurate multiple spectral reflections, occlusions and shadowing; (3) the ability to stimulate the 3D scene with realistic natural irradiances for arbitrary model atmospheres; (4) the ability to appropriately integrate improving, rigorous thermal, spectral signature and atmospheric propogation models; (5) the ability to effectively render at-apurature hyperspectral data sets in a reasonable run-time. herein the authors describe their continuing work toward a comprehensive ray-tracer-based simulation archetecture and prototype capability that addresses these requirements, with emphasis on new techniques for high fidelity thermal modeling, and recent improvements in atmospherically scattered irradiance modeling, manmade light source modeling, and GIS-based database generation, including automated material classification of terrain and scene elements.

Fink, Christopher E.; Moulton, Joseph R., Jr.; Ortalano, Michael; Speer, Richard; Kaplan, Ray; Helmsen, John; Haren, Raymond; Sawtelle, Steven C.

2005-05-01

381

Video Self-Modeling  

ERIC Educational Resources Information Center

|Video self-modeling (VSM) first appeared on the psychology and education stage in the early 1970s. The practical applications of VSM were limited by lack of access to tools for editing video, which is necessary for almost all self-modeling videos. Thus, VSM remained in the research domain until the advent of camcorders and VCR/DVD players and,…

Buggey, Tom; Ogle, Lindsey

2012-01-01

382

AdBlockVideo  

NSDL National Science Digital Library

Video ads can be quite a nuisance. AdBlockVideo can help users out by effectively blocking such ads. Visitors will need to download the program and they can toggle AdBlockVideo on and off as they see fit. This application is compatible with computers running Windows 98 and newer, Max OS 10.3 and newer, and Linux.

2011-01-01

383

Authoring with Video  

ERIC Educational Resources Information Center

|Teachers are hungry for strategies that will motivate their students to engage in reading and writing. One promising method is the Authoring With Video (AWV) approach, which encourages teachers to use captioning software and digital video in writing assignments. AWV builds on students' fascination with television and video but removes the audio…

Strassman, Barbara K.; O'Connell, Trisha

2007-01-01

384

Light Field Video Camera.  

National Technical Information Service (NTIS)

We present the Light Field Video Camera, an array of CMOS image sensors for video image based rendering applications. The device is designed to record a synchronized video dataset from over one hundred cameras to a hard disk array using as few as one PC p...

B. Wilburn M. Smulski K. Lee M. A. Horowitz

2000-01-01

385

Guitarbuilding Fabrication Video Series  

NSDL National Science Digital Library

This page from the Guitarbuilding project provides a number of very interesting videos on the design and manufacturing of guitars. Videos cover topics like performing basic wood repairs on guitars, soldering and wiring techniques, gluing fretboards to guitar necks and assembling the pickups to the pickup rings. The videos vary in length, and Flash is required to view them.

2011-11-18

386

Multispectral video fusion  

Microsoft Academic Search

We present a technique for enhancing underexposed visible video footage by fusing it with simultaneously captured video from non- visible sensors, such as short wave IR or near IR. Although IR sen- sors can capture video in low-light for night-vision applications, they lack the color and the relative luminances of visible spec- trum sensors. RGB sensors capture color and correct

Eric P. Bennett; John L. Mason; Leonard McMillan

2006-01-01

387

Video Gallery: Shark Dissection  

NSDL National Science Digital Library

This video gallery is from the Museum's Seminars on Science, a series of distance-learning courses designed to help educators meet the new national science standards. There are 16 videos each covering dissection of a different part of the dogfish shark. There is a downloadable pdf for each video.

388

Video Games in Psychotherapy  

Microsoft Academic Search

Video games have found their way into the clinical care of youth in most medical fields, and academic interest in their use is increasing steadily. The popularity of video games among youth may qualify them as a useful tool in psychotherapy for children and adolescents. Limited literature on use of video games in mental health care suggests that they can

T. Atilla Ceranoglu

2010-01-01

389

Video Self-Modeling  

ERIC Educational Resources Information Center

Video self-modeling (VSM) first appeared on the psychology and education stage in the early 1970s. The practical applications of VSM were limited by lack of access to tools for editing video, which is necessary for almost all self-modeling videos. Thus, VSM remained in the research domain until the advent of camcorders and VCR/DVD players and,…

Buggey, Tom; Ogle, Lindsey

2012-01-01

390

Video: Modalities and Methodologies  

ERIC Educational Resources Information Center

In this article, we set out to explore what we describe as the use of video in various modalities. For us, modality is a synthesizing construct that draws together and differentiates between the notion of "video" both as a method and as a methodology. It encompasses the use of the term video as both product and process, and as a data collection…

Hadfield, Mark; Haw, Kaye

2012-01-01

391

Video: Modalities and Methodologies  

ERIC Educational Resources Information Center

|In this article, we set out to explore what we describe as the use of video in various modalities. For us, modality is a synthesizing construct that draws together and differentiates between the notion of "video" both as a method and as a methodology. It encompasses the use of the term video as both product and process, and as a data collection…

Hadfield, Mark; Haw, Kaye

2012-01-01

392

Performance evaluation of video on ethernet  

SciTech Connect

The purpose of this project was to determine the feasibility of using an ethernet local area network (LAN) to support videoconferencing connections between CAMEO Macintosh desktop videoconferencing systems. The specific goals were to: (1) to ensure that CAMEO video could be transported-without protocol modification-via existing ethernet networks, and would do so without ``bringing-down`` the network; (2) to measure the effect of CAMEO video connections on ethernet traffic; (3) to evaluate qualitatively how generated ethernet traffic effects the CAMEO video; and (4) to evaluate qualitatively how multiple CAMEO connections work between two routered ethernet networks via a backbone. High quality CAMEO video can be transported on an ethernet network and between routered networks, via a backbone. The number of simultaneous video connections possible on an ethernet segment would probably be less than 45, since each connection uses 2.2% of the network and errors increase rapidly as video connections are made. However, the actual number of simultaneous video connections possible will depend upon your network implementation and the amount of ``normal`` traffic present. The remainder of this report discusses the effect of CAMEO video on our networks.

Pihlman, M.; Farrell, R.

1993-08-01

393

Advanced concepts: The second generation of compressed air-energy storage technology  

NASA Astrophysics Data System (ADS)

A description and assessment is provided for four second generation compressed air energy storage (CAES) concepts; abiabatic CAES, hybrid CAES, CAES with coal gasification (CG), and CAES with pressurized fluidized bed combustion (PFBC). These are based on information provided in conceptual design studies performed by Acres American, Inc., United Engineers and Constructors, and United Technologies Research Center. The assessment covers consideration of the technological readiness, relative economic benefits and operational viability of each concept. It was concluded that the adiabatic CAES concept appears to be the most attractive candidate for utility application in the near future. It is operationally viable, economically attractive compared with competing concepts, and will require relatively little additional development before commercialization. It was estimated that a utility could start the design of a commercial plant in 2 to 3 years if research regarding TES system design is undertaken in a timely manner.

Kannberg, L. D.

1981-09-01

394

AIDS/HIV Educational Video Clips (VHS 1/2 inch and text) (Video).  

National Technical Information Service (NTIS)

The videotape provides a series of seven brief (one-two minutes each) video clips of medical center situations to help generate discussion of major concerns surrounding HIV/AIDS. Situations were developed by VA clinicians and educators.

1993-01-01

395

Toward the next generation of negative symptom assessments: the collaboration to advance negative symptom assessment in schizophrenia.  

PubMed

Negative symptoms in schizophrenia are related to poor functional outcome, persistent over time, a source of burden for caregivers, and only minimally responsive to currently available medications. A major challenge to developing efficacious interventions concerns the valid and reliable assessment of negative symptoms. In a recent consensus statement on negative symptoms, a central recommendation was the need to develop new assessment approaches that address the limitations of existing instruments. In the current report, we summarize the background and rationale for the Collaboration to Advance Negative Symptom Assessment in Schizophrenia (CANSAS). The CANSAS project is an National Institute of Mental Health-funded multisite study that is constructing a next-generation negative symptom scale, the Clinical Assessment Interview for Negative Symptoms (CAINS). The CAINS is being developed within a data-driven iterative process that seeks to ensure the measure's reliability, validity, and utility for both basic psychopathology and treatment development research. PMID:20861151

Blanchard, Jack J; Kring, Ann M; Horan, William P; Gur, Raquel

2010-09-22

396

Fast and Secure Real-Time Video Encryption  

Microsoft Academic Search

Advances in digital content transmission have increased in the past few years. Security and privacy issues of the transmitted data have become an important concern in multimedia technology. In this paper, we propose a computationally efficient and secure video encryption al- gorithm. This makes secure video encryption feasible for real-time applications without any extra dedicated hard- ware. We achieve computationalefficiency

Chigullapally Narsimha Raju; Ganugula Umadevi; Kannan Srinathan; C. V. Jawahar

2008-01-01

397

Providing on-demand sports video to mobile devices  

Microsoft Academic Search

This paper introduces a system for providing on-demand sports video to mobile devices, which has two main contributions. First, we construct an infrastructure for extracting and delivering the highlights instead of the whole sport videos to mobile clients, which can significantly reduce the bandwidth consumption. Second, we design an advanced UI for the mobile clients to effectively browse and interact

Qingshan Liu; Zhigang Hua; Cunxun Zang; Xiaofeng Tong; Hanqing Lu

2005-01-01

398

Artificial Intelligence in Modern Video Games: A Survey  

Microsoft Academic Search

Video games continue to evolve at an incredible rate, and with this comes advances in technology and the artificial intelligence behind them. Artificial intelligence is highly involved in many aspects of game design, and along with the graphics, is responsible for the believability of any game. In this paper we will discuss many different aspects of AI in the video

Sam Palecek; Ryan Watermiller

399

Video game device haptic interface for robotic arc welding  

Microsoft Academic Search

Recent advances in technology for video games have made a broad array of haptic feedback devices available at low cost. This paper presents a bi-manual haptic system to enable an operator to weld remotely using a commercially available haptic feedback video game device for the user interface. The system showed good performance in initial tests, demonstrating the utility of low

Corrie I. Nichol; Milos Manic

2009-01-01

400

Monolithic solid oxide fuel cell technology advancement for coal-based power generation. Final report, September 1989--March 1994  

SciTech Connect

This project has successfully advanced the technology for MSOFCs for coal-based power generation. Major advances include: tape-calendering processing technology, leading to 3X improved performance at 1000 C; stack materials formulations and designs with sufficiently close thermal expansion match for no stack damage after repeated thermal cycling in air; electrically conducting bonding with excellent structural robustness; and sealants that form good mechanical seals for forming manifold structures. A stack testing facility was built for high-spower MSOFC stacks. Comprehensive models were developed for fuel cell performance and for analyzing structural stresses in multicell stacks and electrical resistance of various stack configurations. Mechanical and chemical compatibility properties of fuel cell components were measured; they show that the baseline Ca-, Co-doped interconnect expands and weakens in hydrogen fuel. This and the failure to develop adequate sealants were the reason for performance shortfalls in large stacks. Small (1-in. footprint) two-cell stacks were fabricated which achieved good performance (average area-specific-resistance 1.0 ohm-cm{sup 2} per cell); however, larger stacks had stress-induced structural defects causing poor performance.

Not Available

1994-05-01

401

Rivizor--a new third-generation aromatase inhibitor for the treatment of advanced breast cancer after tamoxifen failure.  

PubMed

Rivizor (vorozole) is a new, highly potent and selective third-generation aromatase inhibitor for treatment of advanced breast cancer. In an open-label study, 30 postmenopausal women failing tamoxifen therapy received Rivizor 2.5 mg once daily until disease progression. Rivizor produced clinical benefit (partial response or no change) in 16 of 27 evaluable patients (59.3%). Five patients (18.5%) had a partial response (UICC criteria) which lasted for a median of 15 months (range 14-42.5 months), 11 patients had disease stabilization for a median of 14 months (7-24 months), and 11 patients had disease progression. Median time to first response was 3.9 months (3-27.5 months): estimated median survival time for all patients was 22.8 months (2-52.8 months) and estimated median time to disease progression was 10.8 months (1.4-42.4 months). Estradiol levels decreased to below limits of detection from 1st month of treatment until study end. Androstenedione, 17alpha-hydroxyprogesterone, dehydroepiandrosterone, and free-testosterone levels were unaffected by Rivizor. ACTH stimulation tests demonstrated that Rivizor does not interfere with adrenal mineralocorticoid and glucocorticoid steroid synthesis. Adverse events were mild-to-moderate. Rivizor might be an effective and well-tolerated alternative treatment for postmenopausal advanced breast cancer patients following tamoxifen failure. PMID:9949297

Goss, P E; Walde, D; De Coster, R; Langenaeken, C; Bruynseels, J

1999-01-01

402

Validation Specialist Video  

NSDL National Science Digital Library

The Northeast Biomanufacturing Center and Collaborative (NBC2) has created a series of videos in which technicians describe their job and the preparation they received for it. These videos are great tools for other manufacturing programs to educate current students on options available to them after they graduate and the skills or courses they found most applicable to their real world experience. In this particular video, Validation Specialist Dennis Woodby discusses his background, education, job search, and the skills he has found to be useful in job hunting. This video is 4:18 long, is in Windows Media Video (wmv) format, and can be played with Quicktime or Windows Media Player.

2009-10-01

403

Advanced smart multifunctional laser crystals for next generation solid state lasers  

NASA Astrophysics Data System (ADS)

The hydrothermal crystal growth technique is developed for the growth of epitaxial single crystal layers on YAG. High quality epitaxial layers of functionalized layers can be grown using Y2O3 doped with the desired ion and Al2O3 as feedstocks in water between 600-650°C at 1 kbar pressure, with a mineralizer of 1-4M K2CO3.The epitaxial layers are doped with a variety of doping ions that enable a number of optical functionalities. These include undoped regions to serve as endcaps, Q-switching regions, ASE suppression cladding layers, waveguide layers and a number of other applications. Different layers can be grown sequentially on the same crystal to create multifunctional single crystals. Epitaxial layers have been grown on both {111} and {100} faces with rates of growth being {100}>{111}>{110}. Growth rates range typically from 25 to 100 microns per day but faster and slower rates have been observed. The technique is not restricted to YAG and can be extended to any oxide hosts that can be grown hydrothermally. Work is being extended to LuAG, YVO4 and M2O3 (M = Lu, Sc).The techniques presented here can address long-standing performance issues associated with solid-state laser materials; when combined with crystal joining technologies, new crystal functionalities emerge that can further improve solid-state laser performance; we refer to this new generation of laser crystals as "smart".

Brown, D. C.; Kowalewski, K.; Envid, V.; Zembek, J.; Kolis, J. W.; McMillen, C. D.; Geisber, H.

2012-05-01

404

Advanced concepts: the second generation of compressed air-energy-storage technology  

SciTech Connect

A description and assessment is provided for four second generation compressed air energy storage (CAES) concepts; adiabatic CAES, hybrid CAES, CAES with coal gasification (CG), and CAES with pressurized fluidized bed combustion (PFBC). These are based on information provided in conceptual design studies performed by Acres American, Inc., United Engineers and Constructors, and United Technologies Research Center. The assessment covers consideration of the technological readiness, relative economic benefits and operational viability of each concept. It was concluded that the adiabatic CAES concept appears to be the most attractive candidate for utility application in the near future. It is operationally viable, economically attractive compared with competing concepts, and will require relatively little additional development before commercialization. It was estimated that a utility could start the design of a commercial plant in 2 to 3 years if research regarding TES system design is undertaken in a timely manner. The hybrid CAES should also be considered as a candidate for early application. It is similarly viable and close to readiness; however, it is less economically attractive.

Kannberg, L.D.

1981-09-01

405

Advancement in eddy current test technology for steam generator tube inspection  

SciTech Connect

The Oak Ridge National Laboratory (ORNL) is developing and improving eddy current inspection methods for steam generator tubes in the nuclear industry. The authors have improved the fit and accuracy of the automatic analysis of eddy current data by the use of a back propagation method for fitting instrument readings to test properties. In addition, they have written software that performs an analysis similar to some industry standard analyses, which allows the ORNL and industry analyses to be compared. Their automatic analysis can be applied immediately to the detection of probe wear. They have interfaced their analysis programs to the Zetec MIZ-18, and interfaced their IBM PC-AT clones to the Hewlett Packard computer system used for industry standard data analysis. They can now analyze industry plant inspection data on optical disks using the ORNL multiple property methods. A supplementary method, a neural network method that looks directly at the raw images and will correctly categorize the defects, has been developed. Although this method has not been as thoroughly developed as the multiple property method, it has performed very well on a limited set of samples.

Dodd, C.V.; Pate, J.R.; Allen, J.D. (Oak Ridge National Lab., TN (United States))

1995-01-01

406

Advances in ground operations for the next generation space launch vehicle programs  

NASA Astrophysics Data System (ADS)

Future launch vehicle programs, such as the National Launch System (NLS) and the Single Stage to Orbit (SSTO), will need to satisfy extremely stringent requirements. Low lift cycle costs, high launch rates, demanding surge capacities, short turnaround times, and continuous program evolution and growth considerations will shape the next generation space launch vehicle programs. Efficient ground operations are to play an increasingly important role in meeting the requirements of these new programs. The design of future ground operations for these programs has developed into analysis of two major subject areas: simplification of current practices and the use of modular designs. To make the NLS processing more efficient, special tooling and ground support equipment concepts that minimize the amount of handling required have been developed. To maximize launch pad throughput, the NLS and SSTO processing schemes provide upper-stage and payload integration away from the pad at a separate facility. By incorporating modular concepts into a facility design, a launch vehicle program can expand over a long period of time with minimal interference to operational systems in use.

Moeller, Mark; Ewing, Shelly

407

Mobile Face Capture for Virtual Face Videos  

Microsoft Academic Search

Minimally obtrusive face capture is essential for applications in tele-conferencing, collaborative work, and mobile applications. Acquiring and coding video for such applications is a challenging problem, particularly for a mobile user. A pilot head-mounted display system (HMD) is shown that captures two side views of the face and generates in real-time a quality frontal video of the wearer. The face

Chandan K. Reddy; George C. Stockman; Jannick P. Rolland; Frank A. Biocca

2004-01-01

408

DEVELOPMENT OF AN ADVANCED APPROACH FOR NEXT-GENERATION INTEGRATED RESERVOIR CHARACTERIZATION  

SciTech Connect

Accurate, high-resolution, three-dimensional (3D) reservoir characterization can provide substantial benefits for effective oilfield management. By doing so, the predictive reliability of reservoir flow models, which are routinely used as the basis for investment decisions involving hundreds of millions of dollars and designed to recover millions of barrels of oil, can be significantly improved. Even a small improvement in incremental recovery for high-value assets can result in important contributions to bottom-line profitability. Today's standard practice for developing a 3D reservoir description is to use seismic inversion techniques. These techniques make use of geostatistics and other stochastic methods to solve the inverse problem, i.e., to iteratively construct a likely geologic model and then upscale and compare its acoustic response to that actually observed in the field. This method has several inherent flaws, such as: (1) The resulting models are highly non-unique; multiple equiprobable realizations are produced, meaning (2) The results define a distribution of possible outcomes; the best they can do is quantify the uncertainty inherent in the modeling process, and (3) Each realization must be run through a flow simulator and history matched to assess it's appropriateness, and therefore (4) The method is labor intensive and requires significant time to complete a field study; thus it is applied to only a small percentage of oil and gas producing assets. A new approach to achieve this objective was first examined in a Department of Energy (DOE) study performed by Advanced Resources International (ARI) in 2000/2001. The goal of that study was to evaluate whether robust relationships between data at vastly different scales of measurement could be established using virtual intelligence (VI) methods. The proposed workflow required that three specific relationships be established through use of artificial neural networks (ANN's): core-to-log, log-to-crosswell seismic, and crosswell-to-surface seismic. One of the key attributes of the approach, which should result in the creation of high resolution reservoir characterization with greater accuracy and with less uncertainty than today's methods, is the inclusion of borehole seismic (such as crosswell and/or vertical seismic profiling--VSP) in the data collection scheme. Borehole seismic fills a critical gap in the resolution spectrum of reservoir measurements between the well log and surface seismic scales, thus establishing important constraints on characterization outcomes. The results of that initial study showed that it is, in fact, feasible to establish the three critical relationships required, and that use of data at different scales of measurement to create high-resolution reservoir characterization is possible. Based on the results of this feasibility study, in September 2001, the DOE, again through ARI, launched a subsequent two-year government-industry R&D project to further develop and demonstrate the technology. The goals of this project were to: (1) Make improvements to the initial methodology by incorporating additional VI technologies (such as clustering), using core measurements in place of magnetic resonance image (MRI) logs, and streamlining the workflow, among others. (2) Demonstrate the approach in an integrated manner at a single field site, and validate it via reservoir modeling or other statistical methods.

Scott R. Reeves

2005-04-01

409

Advanced technologies in the ASI MLRO towards a new generation laser ranging system  

NASA Astrophysics Data System (ADS)

Matera Laser Ranging Observatory (MLRO) is a high performance, highly automated optical and astronomical observatory currently under design and development by AlliedSignal for the Italian Space Agency (ASI). It is projected to become operational at the Centro Geodesia Spaziale in Matera, Italy, in 1997. MLRO, based on a 1.5-meter astronomical quality telescope, will perform ranging to spacecraft in earthbound orbits, lunar reflectors, and specially equipped deep space missions. The primary emphasis during design is to incorporate state-of-the-art technologies to produce an intelligent, automated, high accuracy ranging system that will mimic the characteristic features of a fifth generation laser ranging system. The telescope has multiple ports and foci to support future experiments in the areas of laser communications, lidar, astrometry, etc. The key features providing state-of-the-art ranging performance include: a diode-pumped picosecond (50 ps) laser, high speed (3-5 GHz) optoelectronic detection and signal processing, and a high accuracy (6 ps) high resolution (less than 2 ps) time measurement capability. The above combination of technologies is expected to yield millimeter laser ranging precision and accuracy on targets up to 300,000 km, surpassing the best operational instrument performance to date by a factor of five or more. Distributed processing and control using a state-of-the-art computing environment provides the framework for efficient operation, system optimization, and diagnostics. A computationally intelligent environment permits optimal planning, scheduling, tracking, and data processing. It also supports remote access, monitor, and control for joint experiments with other observatories.

Varghese, Thomas; Bianco, Giuseppe

1994-11-01

410

Heterosis retained in advanced generations of crosses among Angus and Hereford cattle.  

PubMed

Data from 1,909 purebred, F1, backcross and F2 and F3 inter se combinations of Angus and Hereford were used to estimate average individual, maternal and grandmaternal genetic effects, individual and maternal heterosis, dominance and epistatic genetic effects. Models for evaluating heterosis and epistatic or recombination effects were discussed. Average individual effects indicate that Angus, compared with Hereford, had calves that were born earlier, had lighter birth weights, lower pre- and postweaning gains and lower pregnancy rates. Angus also produced lighter weight carcasses with more fat cover and marbling. Maternal effects of Angus were in the direction of reduced birth weight, greater calving ease, higher preweaning but lower postweaning growth rate and increased fatness when contrasted with Hereford. There was a tendency for opposite direction of maternal and grandmaternal effects for traits influenced by preweaning maternal environment. When additive X additive effects were ignored, total heterosis was significant for earlier day born, heavier birth weight, preweaning and postweaning gain, and heavier and fatter carcasses. Heterosis retained in F3 inter se vs F1 generation crosses indicated that net epistatic effects were relatively negligible for date of calving, birth weight, weaning gain and fat cover. There was a greater reduction of heterosis effects than expected from dominance alone for survival, pregnancy and marbling score. Loss of heterosis in F3 was less than expected for postweaning gain, carcass weight and rib eye area. Except for survival, pregnancy and marbling, these deviations from dominance expectations, or lack of them, are favorable for F3 composite populations. PMID:4008360

Koch, R M; Dickerson, G E; Cundiff, L V; Gregory, K E

1985-05-01

411

Object-Based Video Segmentation with Region Labeling.  

National Technical Information Service (NTIS)

Boosted by technological advances in the area of communications and computer engineering, there has been an explosion in the amount of the distributed visual information in the last decade. Digital video and the expected fusion of television and internet ...

I. Patras

2001-01-01

412

Feature-preserving image/video compression  

NASA Astrophysics Data System (ADS)

Advances in digital image processing, the advents of multimedia computing, and the availability of affordable high quality digital cameras have led to increased demand for digital images/videos. There has been a fast growth in the number of information systems that benefit from digital imaging techniques and present many tough challenges. In this paper e are concerned with applications for which image quality is a critical requirement. The fields of medicine, remote sensing, real time surveillance, and image-based automatic fingerprint/face identification systems are all but few examples of such applications. Medical care is increasingly dependent on imaging for diagnostics, surgery, and education. It is estimated that medium size hospitals in the US generate terabytes of MRI images and X-Ray images are generated to be stored in very large databases which are frequently accessed and searched for research and training. On the other hand, the rise of international terrorism and the growth of identity theft have added urgency to the development of new efficient biometric-based person verification/authentication systems. In future, such systems can provide an additional layer of security for online transactions or for real-time surveillance.

Al-Jawad, Naseer; Jassim, Sabah

2005-10-01

413

Design-based metrology: advanced automation for CD-SEM recipe generation  

NASA Astrophysics Data System (ADS)

The procedure for properly implementing OPC for a new technology node or chip design involves multiple steps: selection of the RET (resolution enhance technique), selection of design rules, OPC Model Building, OPC Verification, CD control quantification (across chip, reticle, wafer, focus, exposure, etc), calibration of Optical Rule Checks (ORC), and other verification steps. Many of these steps require up to thousands of wafer measurements, and while state-of-the-art CD-SEM tools provide automated metrology for production, manually creating a CD recipe with thousands of unique sites is extremely tedious and error-prone. This places a practical limit on both the quality and number of measurements that can be acquired during the technology development and qualification period. At the same time, the number of measurements required to qualify a new reticle design has increased drastically due to the growing complexity of RET and diminishing tolerances. To meet this challenge, a direct and automated link from the design systems to the process metrology tools is needed. Novel methodologies must also be developed to enable automated generation of teh recipe from the design inputs and to translate the flood of metrology results into information that can improve the design, mask data processing, or the patterning process. To facilitate this two-way data flow, a new framework has been created enabling true Design-Based Metrology (DBM), and an application named OPC-Check has been developed to operate within this framework. This DBM framework provides the common language and interface that facilitates the direct transfer of desired measurement locations from teh design to the metrology tool. This link is a critical element in Design for Manufacturability (DFM) efforts, a central theme in many presentations at Microlithography 2005. This article discusses the significant benefits of the tight integration of design and process metrology for OPC implementation in a new technology node, and provides some examples of the novel OPC-Check application as currently implemented at AMD SDC with Applied Materials CD-SEM tools.

Tabery, C.; Capodieci, L.; Haidinyak, C.; Shah, K.; Threefoot, M.; Choo, B.; Singh, B.; Nehmadi, Y.; Ofek, C.; Menadeva, O.; Ben-Porath, A.

2005-05-01

414

Design and implementation of high-performance video processor for head-mounted displays  

Microsoft Academic Search

This paper presents the design of a high-performance processor used for head-mounted display (HMD) applications targeting stereo video processing. The proposed hardware architecture of the video processor consists of three major parts: an adaptive 3-dimensional (3D) video decoder to accurately decoding the stereo composite video base band signal (CVBS) source, a video source separation module to generate the 3D display

Hou Zuoxun; Ge Chenyang; Zhao Wenzhe; Liu Longjun; Zheng Nanning

2011-01-01

415

Image and Video Processing for Affective Applications  

Microsoft Academic Search

\\u000a Recent advances in the research area of affective computing have broadened the range of application areas of its findings,\\u000a and additionally, as the state of the art advances in affective computing, other related research areas (computer vision,\\u000a pattern recognition, etc.) discover new challenges that are related to image and video processing related to the task of automatic\\u000a affective analysis. Although

Maja Pantic; George Caridakis

416

Management of Creativity in Video Game Development  

Microsoft Academic Search

Video games and their production have evolved over a few decades from being “fun” exercises at universities to a business in which annual revenues have exceeded that of Hollywood box office receipts. Presently, development of these games has become technically more advanced, and the barrier to entry into this market as a developer is getting increasingly more costly. Consequently, there

Peter Zackariasson; Martin Walfisz; Timothy L. Wilson

2006-01-01

417

Violent Video Games as Exemplary Teachers  

Microsoft Academic Search

Abstract A great deal is known about how to teach effectively. We describe several ofthe “best practices” of learning and instruction, and show how violent video games use those practices. Three hypotheses are advanced and tested. First, curricula that teach the same underlying conceptsacross contexts and domains have the best likelihood of transfer. Second, learning is more likely to be

Douglas A. Gentile; J. Ronald Gentile

418

Second-Generation UMTRI Coding Scheme for Classifying Driver Tasks in Distraction Studies and Application to the Avoidance System (ACAS) Field Operational Test (FOT) Video Clips.  

National Technical Information Service (NTIS)

This report describes the development of a new coding scheme to classify potentially distracting secondary tasks performed while driving, such as eating and using a cell phone. Compared with prior schemes (Stutts et al., first-generation UMTRI scheme), th...

J. Oberholtzer J. Schweitzer L. Nguyen P. Green S. Yee

2006-01-01

419

On the Design of a Low-Cost Video-on-Demand Storage System  

Microsoft Academic Search

Recent advances in storage technology, coupled with the dramatic increase in the bandwidthof networks, make it now possible to provide "video on demand" service to viewers. A videoon demand server is a computer system that stores videos in compressed digital form andprovides support for different portions of compressed video data to be accessed and transmittedconcurrently.In this paper, we present a

Banu Özden; Rajeev Rastogi; Abraham Silberschatz

1996-01-01

420

A Multimodal Scheme for Program Segmentation and Representation in Broadcast Video Streams  

Microsoft Academic Search

With the advance of digital video recording and playback systems, the request for efficiently managing recorded TV video programs is evident so that users can readily locate and browse their favorite programs. In this paper, we propose a multimodal scheme to segment and represent TV video streams. The scheme aims to recover the temporal and structural characteristics of TV programs

Jinqiao Wang; Ling-Yu Duan; Qingshan Liu; Hanqing Lu; Jesse S. Jin

2008-01-01

421

A method of mobile video transmission based on J2ee  

NASA Astrophysics Data System (ADS)

As 3G (3rd-generation) networks evolve worldwide, the rising demand for mobile video services and the enormous growth of video on the internet is creating major new revenue opportunities for mobile network operators and application developers. The text introduced a method of mobile video transmission based on J2ME, giving the method of video compressing, then describing the video compressing standard, and then describing the software design. The proposed mobile video method based on J2EE is a typical mobile multimedia application, which has a higher availability and a wide range of applications. The users can get the video through terminal devices such as phone.

Guo, Jian-xin; Zhao, Ji-chun; Gong, Jing; Chun, Yang

2013-03-01

422

VideoANT: Extending Online Video Annotation beyond Content Delivery  

ERIC Educational Resources Information Center

|This paper expands the boundaries of video annotation in education by outlining the need for extended interaction in online video use, identifying the challenges faced by existing video annotation tools, and introducing Video-ANT, a tool designed to create text-based annotations integrated within the time line of a video hosted online. Several…

Hosack, Bradford

2010-01-01

423

Robust Video Fingerprinting for Content-Based Video Identification  

Microsoft Academic Search

Video fingerprints are feature vectors that uniquely characterize one video clip from another. The goal of video fingerprinting is to identify a given video query in a database by measuring the distance between the query fingerprint and the fingerprints in the database. The performance of a video fingerprinting system, which is usually measured in terms of pairwise independence and robustness,

Sunil Lee; Chang D. Yoo

2008-01-01

424

VideoANT: Extending Online Video Annotation beyond Content Delivery  

ERIC Educational Resources Information Center

This paper expands the boundaries of video annotation in education by outlining the need for extended interaction in online video use, identifying the challenges faced by existing video annotation tools, and introducing Video-ANT, a tool designed to create text-based annotations integrated within the time line of a video hosted online. Several…

Hosack, Bradford

2010-01-01

425

Video summarization by video structure analysis and graph optimization  

Microsoft Academic Search

Video over Internet is pervasive nowadays. Since downloading and browsing through the whole video le is time consuming, video sum- marization techniques, which aim at providing a way for the user to grasp the major content of the video without viewing the whole video, has received more and more attention. In this paper we propose a novel method for moving

Shi Lu; Irwin King; Michael R. Lyu

2004-01-01

426

Oxfam International: Video  

NSDL National Science Digital Library

Oxfam, the British aid organization that banded together with a dozen other organizations in 1995 to form Oxfam International, has a website loaded with resources, one of which is a video library. There are many issues covered, such as climate change, tsunami survivors, AIDS, and many videos include celebrities, including Colin Firth, Scarlett Johansson, Helen Mirren, and Annie Lennox. To increase their reach, many of the videos are also available on Youtube. To view the video in fullscreen, click on the screen icon next to the speaker icon. One of the more heart wrenching videos is the one titled "Our Home After Sidr-Documentary from Oxfam." It is the abridged version of a documentary, but conveys, nonetheless the dire situation of these Bangladesh survivors. Visitors should also not miss short animated video "Face the Music" about climate change, which uses only music and animation to show how climate change hits the poor "first and worst."

427

Informedia digital video library  

Microsoft Academic Search

is developing new technologies for creating full-content search and retrieval digital video libraries. Working in collaboration with WQED Pittsburgh, the project is creating a test-bed that will enable K-12 students to access, explore, and retrieve science and mathemat-ics materials from the digital video library. The library will initially contain 1,000 hours of video from the archives of project partners: WQED,

Michael Christel; Scott Stevens; Howard Wactlar

1994-01-01

428

Multi-Star Processing and Gyro Filtering for the Video Inertial Pointing System.  

National Technical Information Service (NTIS)

The video inertial pointing (VIP) system is being developed to satisfy the acquisition and pointing requirements of astronomical telescopes. The VIP system uses a single video sensor to provide star position information that can be used to generate three-...

J. P. Murphy

1976-01-01

429

PC-based stereoscopic video walkthrough  

NASA Astrophysics Data System (ADS)

This paper describes a computer program which allows a user to semi-interactively navigate through a pre-recorded environment. The experience is achieved using a set of stereoscopic video sequences which have been recorded while walking around the various pathways of the chosen environment. In the completed system,the stereoscopic video sequences are played back in a sequence such that the operator is given the illusion of being able to continuously and semi-interactively navigate through the environment in stereoscopic 3D. At appropriate decision points the operator is given the option of choosing which direction to continue moving - thereby providing a level of interactivity. This paper discusses the combination of two recent advances in computer technology to transfer an existing video-disk based stereoscopic video walkthrough to run entirely on a PC. The increased computation power of PCs in recent years has allowed reasonably high-quality video playback to be performed on the desktop PC with no additional hardware. Also, Liquid Crystal Shutter (LCS) glasses systems are now widely available allowing high-quality stereoscopic images to be viewed easily on a PC. The demonstration system we have implemented interfaces with a large range of LCS glasses and allows the exploration of stereoscopic video walkthrough technology.

Woods, Andrew J.; Offszanka, Douglas; Martin, Greg

1999-05-01

430

Additive Manufacturing Instructional Videos  

NSDL National Science Digital Library

These two instructional videos from RapidTech, the National Center for Rapid Technologies, show types of additive manufacturing processes. The first video is 6:12 in length and describes "The 3D Printer Revolution" by explaining what 3D printing is, its advantages, and how it may drastically change manufacturing. The second video is 1:30 in length and titled "Manufacturing in Motion: First Survey on the 3D Printing Community." The video presents the results from survey questions in graph form.

2013-06-14

431

Video Demonstration: Proportions  

NSDL National Science Digital Library

This video demonstration from Watch Know Learn will help students learning about proportions. The video will help students with some knowledge of proportions by showing examples of how to solve them. The definition of a proportion is included as well as examples of how to cross-multiply to solve proportion problems. The demonstration shows what a non-proportion problem looks like and how to solve it as well as a few examples of using the lowest common denominator to solve proportions. Flash player is required to view the video, and the running time for the video is 8:09.

2012-01-01

432

Progress in video immersion using Panospheric imaging  

NASA Astrophysics Data System (ADS)

Having demonstrated significant technical and marketplace advantages over other modalities for video immersion, PanosphericTM Imaging (PI) continues to evolve rapidly. This paper reports on progress achieved since AeroSense 97. The first practical field deployment of the technology occurred in June-August 1997 during the NASA-CMU 'Atacama Desert Trek' activity, where the Nomad mobile robot was teleoperated via immersive PanosphericTM imagery from a distance of several thousand kilometers. Research using teleoperated vehicles at DRES has also verified the exceptional utility of the PI technology for achieving high levels of situational awareness, operator confidence, and mission effectiveness. Important performance enhancements have been achieved with the completion of the 4th Generation PI DSP-based array processor system. The system is now able to provide dynamic full video-rate generation of spatial and computational transformations, resulting in a programmable and fully interactive immersive video telepresence. A new multi- CCD camera architecture has been created to exploit the bandwidth of this processor, yielding a well-matched PI system with greatly improved resolution. While the initial commercial application for this technology is expected to be video tele- conferencing, it also appears to have excellent potential for application in the 'Immersive Cockpit' concept. Additional progress is reported in the areas of Long Wave Infrared PI Imaging, Stereo PI concepts, PI based Video-Servoing concepts, PI based Video Navigation concepts, and Foveation concepts (to merge localized high-resolution views with immersive views).

Bogner, Stephen L.; Southwell, David T.; Penzes, Steven; Brosinsky, Chris A.; Anderson, Ron; Hanna, Doug M.

1998-09-01

433

APPLIED RESEARCH IN VIDEO GAMES  

Microsoft Academic Search

Three uses of video games are described: 1. Video games as assessment and as measures of performance. 2. Video games as training and practice in cognitive and perceptual skills, biological and physiological functioning, and cooperation and teamwork. 3. Video games as entertainment. Selected studies are described for each domain. The purpose is to suggest the many possible roles for video

Jeffrey Goldstein

434

Program segmentation for TV videos  

Microsoft Academic Search

A number of video browsing and retrieval systems use a hierarchical video structure (video, scene, group, shot, and keyframe) as the basis for information organization and access. However, this structure cannot represent and manage efficiently the videos recorded from TV channels, since TV videos are usually very long and consist of many scenes. More importantly, people tend to watch these

Liuhong Liang; Hong Lu; Xiangyang Xue; Yap-peng Tan

2005-01-01

435

COVICS: A covert video communications system  

NASA Astrophysics Data System (ADS)

A covert video communications system compatible with narrow band satellite use has been developed. The system communications by modulating reflected energy. This means that no energy is actively generated at the passive end of the link. Only the antenna is impedance is modulated to return the information. The recovered signal is then coherently demodulated to recover the information. The system uses microstrip antennas, operates at 10 GHz, and has a range of about 5 km. The video is slow scan and is updated every 2 seconds, and can be sent over a 2400 baud line such as is required for some satellite communications systems. A combination of discrete cosine transform and video differencing was used to achieve a high degree of video compression.

Bracht, Roger; Kuckertz, Tom

436

Spatiotemporal video segmentation based on graphical models.  

PubMed

This paper proposes a probabilistic framework for spatiotemporal segmentation of video sequences. Motion information, boundary information from intensity segmentation, and spatial connectivity of segmentation are unified in the video segmentation process by means of graphical models. A Bayesian network is presented to model interactions among the motion vector field, the intensity segmentation field, and the video segmentation field. The notion of the Markov random field is used to encourage the formation of continuous regions. Given consecutive frames, the conditional joint probability density of the three fields is maximized in an iterative way. To effectively utilize boundary information from the intensity segmentation, distance transformation is employed in local objective functions. Experimental results show that the method is robust and generates spatiotemporally coherent segmentation results. Moreover, the proposed video segmentation approach can be viewed as the compromise of previous motion based approaches and region merging approaches. PMID:16028557

Wang, Yang; Loe, Kia-Fock; Tan, Tele; Wu, Jian-Kang

2005-07-01

437

The Potential of Video Studies in Research on Teaching and Learning Science  

Microsoft Academic Search

Video technology has played a substantial role in research on teaching and learning in actual practice and in teacher professional\\u000a development since the 1970s. However, the more recent advances of digital video technology and video analysis facilitate much\\u000a deeper insight into the interplay of teaching and learning processes than the analog video technology available so far. It\\u000a turned out that

Maja Brückmann; Reinders Duit; Maike Tesch; Hans Fischer; Alexander Kauertz; Thomas Reyer; Bernhard Gerber; Birte Knierim; Peter Labudde

438

Efficient frequency domain selective scrambling of digital video  

Microsoft Academic Search

Multimedia data security is very important for multimedia commerce on the Internet such as video-on-demand and real-time video multicast. Traditional cryptographic algorithms\\/systems for data security are often not fast enough to process the vast amount of data generated by multimedia applications to meet real-time constraints. This paper presents a joint encryption and compression framework in which video data are scrambled

Wenjun Zeng; Shawmin Lei

2003-01-01

439

Using video to teach future teachers to learn from teaching  

Microsoft Academic Search

Video is commonly used in teacher preparation programs. Teacher educators use video for various purposes. In this study, we\\u000a describe the Learning to Learn from Mathematics Teaching project. In this project, video is used to develop pre-service teachers’\\u000a (PSTs) orientations, knowledge and skills for analyzing and reflecting on mathematics teaching in ways that generate knowledge\\u000a for improvement. We discuss the

Rossella Santagata; Jody Guarino

2011-01-01

440

Free-Viewpoint Video for TV Sport Production  

Microsoft Academic Search

\\u000a Free-viewpoint video in sports TV production presents a challenging problem involving the conflicting requirements of broadcast\\u000a picture quality with video-rate generation of novel views, together with practical problems in developing robust systems for\\u000a cost effective deployment at live events.To date most multiple view video systems have been developed for studio applications\\u000a with a fixed capture volume, controlled illumination and backgrounds.

Adrian Hilton; Jean-Yves Guillemaut; Joe Kilner; Oliver Grau; Graham Thomas

441

Embedded Video Surveillance System Based on H.264  

Microsoft Academic Search

Embedded video surveillance has become a large market as the number of installed cameras around us can show. At the same time, video compression technique has been rapidly developed in recent years. As a new generation of video coding compression standard, extensive attention has been given to H.264\\/AVC. On the other hand, because of good cost-effective and low-power consumption, DSP

Jun-Wei Gao; Ke-Bin Jia

2009-01-01

442

Preliminary investigation of a video-based stimulus preference assessment.  

PubMed

Video clips may be an effective format for presenting complex stimuli in preference assessments. In this preliminary study, we evaluated the correspondence between preference hierarchies generated from preference assessments that included either toys or videos of the toys. The top-ranked item corresponded in both assessments for 5 of the 6 participants, and the top- and bottom-ranked items corresponded for 4 participants. The implications of these results for future research on video preference assessments are discussed. PMID:22844148

Snyder, Katie; Higbee, Thomas S; Dayton, Elizabeth

2012-01-01

443

Intergraph video and images exploitation capabilities  

NASA Astrophysics Data System (ADS)

The current paper focuses on the capture, fusion and process of aerial imagery in order to leverage full motion video, giving analysts the ability to collect, analyze, and maximize the value of video assets. Unmanned aerial vehicles (UAV) have provided critical real-time surveillance and operational support to military organizations, and are a key source of intelligence, particularly when integrated with other geospatial data. In the current workflow, at first, the UAV operators plan the flight by using a flight planning software. During the flight the UAV send a live video stream directly on the field to be processed by Intergraph software, to generate and disseminate georeferenced images trough a service oriented architecture based on ERDAS Apollo suite. The raw video-based data sources provide the most recent view of a situation and can augment other forms of geospatial intelligence - such as satellite imagery and aerial photos - to provide a richer, more detailed view of the area of interest. To effectively use video as a source of intelligence, however, the analyst needs to seamlessly fuse the video with these other types of intelligence, such as map features and annotations. Intergraph has developed an application that automatically generates mosaicked georeferenced image, tags along the video route which can then be seamlessly integrated with other forms of static data, such as aerial photos, satellite imagery, or geospatial layers and features. Consumers will finally have the ability to use a single, streamlined system to complete the entire geospatial information lifecycle: capturing geospatial data using sensor technology; processing vector, raster, terrain data into actionable information; managing, fusing, and sharing geospatial data and video toghether; and finally, rapidly and securely delivering integrated information products, ensuring individuals can make timely decisions.

Colla, Simone; Manesis, Charalampos

2013-08-01

444

Automatic personalized video abstraction for sports videos using metadata  

Microsoft Academic Search

Video abstraction is defined as creating a video abstract which includes only important information in the original video\\u000a streams. There are two general types of video abstracts, namely the dynamic and static ones. The dynamic video abstract is a 3-dimensional representation created by temporally arranging important scenes while\\u000a the static video abstract is a 2-dimensional representation created by spatially arranging

Naoko Nitta; Yoshimasa Takahashi; Noboru Babaguchi

2009-01-01

445

Songwriting and digital video production interventions for pediatric patients undergoing bone marrow transplantation, part II: an analysis of patient-generated songs and patient perceptions regarding intervention efficacy.  

PubMed

Part I of this exploratory case study examined patient anxiety levels and depressive symptoms according to phase of bone marrow transplantation (BMT). The second part of this study examines more qualitative outcomes of the music therapy intervention. Purposes of this part of the study included: (1) to examine the lyrical content of patient-generated songs and (2) to compare patient perceptions regarding the effectiveness of a 6-week music condition with a no-music contact condition. Six pediatric BMT patients participated in the study. Three participants experienced the music condition and three participants experienced the no-music contact condition. Both conditions consisted of six, 1-hour sessions that occurred over a 3-week period. Content analysis of patient-generated songs revealed expression of issues related to the following themes: hope, positive coping, appreciation, mental status, control, time, bewilderment, treatment, and diagnosis. Examination of patient-generated songs provided insight into each patient's experience with transplantation and the coping strategies used during treatment. Outcomes from a poststudy questionnaire are summarized. PMID:12569431

Robb, Sheri L; Ebberts, Allison G

446

Monolithic solid oxide fuel cell technology advancement for coal-based power generation. Quarterly technical progress report, January--March 1994.  

National Technical Information Service (NTIS)

Objective is to advance materials and fabrication methods to develop a monolithic solid oxide fuel cell (MSOFC) system for coal-based power generation. Focus is on materials R and D, fabrication process development, cell/stack performance testing and char...

1994-01-01

447

Advancing climate studies in the Asia-Pacific region with the next generation GNSS and an innovative radio occultation technique  

NASA Astrophysics Data System (ADS)

The global positioning system (GPS) radio occultation (RO) technique has demonstrated great potential for climate monitoring. Since the first GPS RO mission GPS/MET launched in 1995, dozens of satellites have successfully produced quality atmospheric profiles. CHAMP and FORMOSAT-3/COSMIC RO missions proved to be very useful for long-term climate studies. The next generation FORMOSAT-7/COSMIC-2 RO mission will be the first capable of receiving signals not only from GPS satellites but also other Global Navigation Satellite Systems (GNSS). Due to the increased number of GNSS satellites utilized, higher spatial and temporal resolution of atmospheric observation can be achieved using the same number of RO satellites. Moreover, multiple GNSS mean more frequencies available for the data retrieval process and higher quality of the data products can be expected. Regional climate studies will gain benefits from the increased quantity and quality of RO atmospheric profiles. The National Climate Centre at the Australian Bureau of Meteorology, as a leading climate research agency in Southern Hemisphere, has utilized GPS RO data in various studies for the Asia-Pacific region and will continue to use the improved observations for a broader range of applications. A simulation study is carried out to examine the impact (benefit) of the next generation RO mission for the climate studies in the Asia-Pacific region. The number and distribution of RO events from FORMOSAT-7/COSMIC-2 with multiple GNSS (i.e. GPS, Glonass, Galileo Beidou and QZSS) are modelled. The results show that the number of daily RO retrievals in the Asia-Pacific region will increase from a few hundreds to over three thousands due to the use of multiple GNSS. A several demonstrating studies are carried out based on the future available RO atmospheric data. An innovative analytical technique based on the relationships among the derivatives of the phase, eikonal and Doppler frequency over time and the intensity of GPS transmitted radio waves through the Earth' atmosphere has also been developed. This technique is applied to the identification and location of the plasma layers in the lower ionosphere by use of GPS RO data. This is highly important for determination of the location of the vertical wind shear and the direction of internal wave propagation in the lower ionosphere, and possibly in the atmosphere. Application of this innovative technique, particularly in combination with the next generation GNSS RO data, could advance climate research, for example, our understanding of tropical cyclone genesis and development in the Asia-Pacific region.

Kuleshov, Y.; Fu, E.; Zhang, K.; Silcock, D.; Pavelyev, A. G.

2012-04-01

448

Design of the Next Generation Nuclear Plant Graphite Creep Experiments for Irradiation in the Advanced Test Reactor  

SciTech Connect

The United States Department of Energy’s Next Generation Nuclear Plant (NGNP) Program will be irradiating six gas reactor graphite creep experiments in the Advanced Test Reactor (ATR) located at the Idaho National Laboratory (INL). The ATR has a long history of irradiation testing in support of reactor development and the INL has been designated as the new United States Department of Energy’s lead laboratory for nuclear energy development. The ATR is one of the world’s premiere test reactors for performing long term, high flux, and/or large volume irradiation test programs. These graphite irradiations are being accomplished to support development of the next generation reactors in the United States. The graphite experiments will be irradiated over the next six to eight years to support development of a graphite irradiation performance data base on the new nuclear grade graphites now available for use in high temperature gas reactors. The goals of the irradiation experiments are to obtain irradiation performance data at different temperatures and loading conditions to support design of the Next Generation Nuclear Plant Very High Temperature Gas Reactor, as well as other future gas reactors. The experiments will each consist of a single capsule that will contain seven separate stacks of graphite specimens. Six of the specimen stacks will have half of their graphite specimens under a compressive load, while the other half of the specimens will not be subjected to a compressive load during irradiation. The six stacks will be organized into pairs with a different compressive load being applied to the top half of each pair of specimen stacks. The seventh stack will not have a compressive load on the graphite specimens during irradiation. The specimens will be irradiated in an inert sweep gas atmosphere with on-line temperature and compressive load monitoring and control. There will also be the capability of sampling the sweep gas effluent to determine if any oxidation or off-gassing of the specimens occurs during initial start-up of the experiment. The final design phase for the first experiment was completed in September 2008, and the fabrication and assembly of the experiment test train as well as installation and testing of the control and support systems that will monitor and control the experiment during irradiation are being completed in early calendar 2009. The first experiment is scheduled to be ready for insertion in the ATR by April 30, 2009. This paper will discuss the design of the experiment including the test train and the temperature and compressive load monitoring, control, and data collection systems.

S. Blaine Grover

2009-05-01

449

STEM Careers Phone Video Chat  

NSDL National Science Digital Library

This brief video from WPSU compares technologies from yesterday with today. Yesterday a middle school girl phones her mom while today a girl the same age video chats. The video suggests that science will bring us technologies of tomorrow.

Wpsu

2009-11-10

450

Facilitating Audio and Video  

Microsoft Academic Search

\\u000a Video and audio are the key elements in rich, compelling experiences across platforms: Web, desktop, and mobile. They are\\u000a used everywhere—in news, blogs, music videos, web TV, social media, live Internet radio, amateur productions, and movie promotions.

Elad Elrom

451

Residential video services  

Microsoft Academic Search

A local exchange telephone company's (LEC's) investigation and development of new residential video services and the technologies and market needs that are making such services possible are discussed. Several potential LEC residential video services are described, and the technology necessary to implement such services is discussed, including network access and transport, switching, network management, and customer premises equipment (CPE). The

J. Sutherland; L. Litteral

1992-01-01

452

Depth Adaptive Video Stitching  

Microsoft Academic Search

This paper proposes a novel approach to stitch videos fast and with high quality. In general, scene depth is frequently varying for dynamic video content. For example, moving foreground objects will move closely or far from a camera. The scene depth will be changing according to changed scene content. Therefore, accurate projection transform estimation corresponding to current scene depth is

Wei Zeng; Hongming Zhang

2009-01-01

453

Richard Feynman Video  

NSDL National Science Digital Library

This video clip provides an introduction to Richard Feynman's work and his impact on nanotechnology. Feynman's talk "There's Plenty of Room at the Bottom" examined the future of technology and how things could be done on the nano-scale. The video includes a few quotes from Feynman's work.

2011-10-12

454

Video: Infared Spectroscopy  

NSDL National Science Digital Library

This video, provided by the Royal Society of Chemistry and hosted on YouTube, covers the basic principles of infrared spectroscopy. The material would be very useful in describing the concepts to students for the first time. Running time for the video is 6:32.

2011-06-02

455

Interactive Video Authoring Systems.  

ERIC Educational Resources Information Center

|Five articles describe the following microcomputer-based interactive video authoring aids: (1) IBM's Learning System/1; (2) Video Nova Authoring System; (3) IMSATT Corporation's expert-based authoring system; (4) the System for Authoring Microtraining (SAM); and (5) Omnicom's Content Expert Interviewer and Interactive Design and Authoring System.…

Taylor, Timothy D.; And Others

1987-01-01

456

Digital Video Editing  

ERIC Educational Resources Information Center

|Monica Adams, head librarian at Robinson Secondary in Fairfax country, Virginia, states that librarians should have the technical knowledge to support projects related to digital video editing. The process of digital video editing and the cables, storage issues and the computer system with software is described.|

McConnell, Terry

2004-01-01

457

Flourishing and video games  

Microsoft Academic Search

Studies dedicated to understanding the relationship between gaming and mental health, have traditionally focused on the effects of depression, anxiety, obsessive usage, aggression, obesity, and faltering 'real life' relationships. The complexity of game genre and personality aside, this review aims to define a space for a positive relationship between video game play and wellbeing by applying current video game research

Kellie Vella; Daniel Johnson

2012-01-01

458

Video Gallery: Velociraptor  

NSDL National Science Digital Library

This gallery of online resources is from the Museum's Seminars on Science, a series of distance-learning courses designed to help educators meet the new national science standards. Video Gallery: Velociraptor is part of the Dinosaurs Among Us: The Link to Birds seminar. This brief video looks at how the dinosaur is closely related to birds and includes a printable PDF transcript.

459

Diabetes Travel Tips Video  

MedlinePLUS Videos and Cool Tools

... here: NDEP Home > Resources > Diabetes Travel Tips Video Diabetes Travel Tips Video Diabetes doesn’t keep David from traveling. But he ... about some of David’s tips for traveling with diabetes. Diabetes Travel Tips Subtitle Diabetes Travel Tips Transcript ...

460

The Value of Video  

ERIC Educational Resources Information Center

|Video connects sight and sound, creating a composite experience greater than either alone. More than any other single technology, video is the most powerful way to communicate with others--and an ideal medium for sharing with others the vital learning occurring in music classrooms. In this article, the author leads readers through the process of…

Thompson, Douglas E.

2011-01-01

461

Writing for video games  

Microsoft Academic Search

This paper is a survey of the process and technology used for video games and tackles the problem of writing them. The first part of the paper addresses the general state of the art in the design of video games : market and technology constraints, production process. The second part is devoted to the writing of games practices and technology

Viviane Gal; Cécile Le Prado; Stéphane Natkin; Liliana Vega

462

VIDEO GAMES AND CRIME  

Microsoft Academic Search

Psychological studies find that video game play is associated with markers for violent and antisocial attitudes. It is plausible that these markers indicate either whetted or sated preferences for antisocial behavior. I investigate whether a proxy for video gaming is associated with the prevalence of various crimes and find evidence that gaming is associated with significant declines in crime and

MICHAEL R. WARD

2011-01-01

463

Video Views and Reviews  

ERIC Educational Resources Information Center

|Some impressive video movies have appeared as supplemental material in recent issues of the "Journal of Cell Biology (JCB)", and in this article, the author reviews several of them. In general, the JCB format provides each video clip with its own caption, in addition to any contextual references in the article itself, and a separate descriptive…

Watters, Christopher

2002-01-01

464

The Video Differential Planimeter  

Microsoft Academic Search

The video differential planimeter is an instrument which measures variations in the projected area of any remote object with the aid of a flying spot scanner or television camera system. The composite video signal, caused by the scanning of the object and its contrasting background, is shaped to yield a sequence of constant amplitude rectangular pulses that are negative going

Michael Tobin

1959-01-01

465

Nanotechnology Education Video  

NSDL National Science Digital Library

This video from the Center for Nanotechnology Education and Utilization features the story of a student who went through the Capstone Semester experience at Pennsylvania State University. The clip would serve as a terrific introduction for potential students interested in studying nanotechnology. Running time for the video is 28:35.

2011-02-03

466

Video Motion Capture  

Microsoft Academic Search

This paper demonstrates a new vision based motion capture tech- nique that is able to recover high degree-of-freedom articu lated hu- man body configurations in complex video sequences. It does n ot require any markers, body suits, or other devices attached t o the subject. The only input needed is a video recording of the per- son whose motion is

Christoph Bregler; Jitendra Malik

467

Objective video quality metrics  

Microsoft Academic Search

This paper discusses methods used in different objective video quality metrics. An experimental comparison of different objective methods is also conducted. This experiment shows the importance of video content for a subjective quality evaluation not comprised well by the objective metrics used.

M. Vranjes; S. Rimac-Drlje; D. Zagar

2007-01-01

468

Mobile video stories  

Microsoft Academic Search

The aim of this article is to test how different narrative structures work in mobile video storytelling applications for creative arts. Especially, we are interested in stories made with the mobile phone and for the mobile phone i.e. they are supposed to be viewed on the mobile phone. In addition, we present a new mobile social video service and demo

Jari Multisilta; Marjo Mäenpää

2008-01-01

469

Sports video analysis  

Microsoft Academic Search

Summary form only given. Techniques of computer and Internet are developing very fast, and users want to access their interested multimedia information from anywhere at anytime by using their most convenient digital equipments. Sports video always appeals to large audiences, and it becomes an important problem to automatically extracting useful semantic information from sports video to facilitate user's accessing requirements.

Wen Gao

2006-01-01

470

Salk Institute: Videos  

NSDL National Science Digital Library

The Salk Institute was founded in 1960 by the late Jonas Salk and to this day researchers there investigate cancer, aging, Alzheimer's, diabetes, and infectious diseases. The Institute's media and press relations team is actively involved with publicizing various works and accomplishments, to which end this site allows public access to videos created at the Institute. The videos here are divided into seven sections, including Diabetes and Metabolism, Plant Biology, and AIDS. Each of these sections includes videos that feature researchers and others talking about everything from new insights into cell aging to how the common cold virus might be used to target and disrupt cancer cells. Perhaps the most remarkable section here is titled Institute Videos. This section includes videos on the relationship between art and science, along with profiles of the glassworks of Dale Chihuly that reside at the Institute.

2012-01-01

471

Working with Video  

Microsoft Academic Search

\\u000a This chapter covers the following topics:\\u000a \\u000a \\u000a \\u000a \\u000a  \\u000a \\u000a Types of video format\\u000a \\u000a \\u000a \\u000a  \\u000a \\u000a How to access, load, and display video\\u000a \\u000a \\u000a \\u000a  \\u000a \\u000a How to control video once it has loaded\\u000a \\u000a \\u000a \\u000a  \\u000a \\u000a How to send data to and from video\\u000a \\u000a \\u000a \\u000a In this chapter, you will learn the basics of how to load and control video using ActionScript 3.0. After an introduction\\u000a to encoding,

Sean McSharry

472

Video image position determination  

DOEpatents

The present invention generally relates to the control of video and optical information and, more specifically, to control systems utilizing video images to provide control. Accurate control of video images and laser beams is becoming increasingly important as the use of lasers for machine, medical and experimental processes escalates. In, AURORA, an installation at Los Alamos National Laboratory dedicated to laser fusion research, it is necessary to precisely control the path and angle of up to 96 lasers beams. This invention is comprised of an optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, W.; Anderson, F.L.; Kortegaard, B.L.

1990-12-31

473

Video image position determination  

DOEpatents

The present invention generally relates to the control of video and optical information and, more specifically, to control systems utilizing video images to provide control. Accurate control of video images and laser beams is becoming increasingly important as the use of lasers for machine, medical and experimental processes escalates. In, AURORA, an installation at Los Alamos National Laboratory dedicated to laser fusion research, it is necessary to precisely control the path and angle of up to 96 lasers beams. This invention is comprised of an optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, W.; Anderson, F.L.; Kortegaard, B.L.

1990-01-01

474

Extension of the G.1070 video quality function for the MPEG2 video codec  

Microsoft Academic Search

Videotelephony over IP (Internet Protocol) is one of the promising applications which is broadly used in the next-generation network (NGN). To design and assess the quality of experience (QoE), a parametric opinion model for video-telephony applications standardized in ITU-T Rec. G.1070 has been developed to predict the multimedia (speech and video) quality both in a passive and an interactive context.

Benjamin Belmudez; S. Mo?ller

2010-01-01

475

Video Analysis with a Web Camera  

NASA Astrophysics Data System (ADS)

Recent advances in technology have made video capture and analysis1 in the introductory physics lab even more affordable and accessible. The purchase of a relatively inexpensive web camera is all you need if you already have a newer computer and Vernier's2 Logger Pro 3 software. In addition to Logger Pro 3, other video analysis tools such as Videopoint3 and Tracker,4 which is freely downloadable, by Doug Brown could also be used. I purchased Logitech's5 QuickCam Pro 4000 web camera for $99 after Rick Sorensen6 at Vernier Software and Technology recommended it for computers using a Windows platform. Once I had mounted the web camera on a mobile computer with Velcro and installed the software, I was ready to capture motion video and analyze it.

Wyrembeck, Edward P.

2009-01-01

476

Real-time smoke and flame detection in video  

Microsoft Academic Search

This paper proposes a novel method to detect fire and\\/or flame by processing the video data generated by an ordi- nary camera monitoring a scene. In addition to ordinary motion and color clues, flame and fire flicker is detected by analyzing the video in wavelet domain. Periodic behav- ior in flame boundaries is detected by performing tempo- ral wavelet transform.

B. U. Toreyin; U. Gudukbay; A. E. Cetin

2005-01-01

477

Private sector video surveillance in Toronto: not privacy compliant!  

Microsoft Academic Search

We report on the findings of a fieldwork study conducted on private sector video surveillance and signage in the Toronto area. The presence and operation of over 140 video surveillance camera schemes by large service providing corporations, in 2 major shopping centres and visible from public areas in downtown Toronto is documented. We analyse the data generated in relation to

Andrew Clement; Joseph Ferenbok; Roxanna Dehghan; Laura Kaminker; Simeon Kanev

2012-01-01

478

Preliminary Investigation of a Video-Based Stimulus Preference Assessment  

ERIC Educational Resources Information Center

|Video clips may be an effective format for presenting complex stimuli in preference assessments. In this preliminary study, we evaluated the correspondence between preference hierarchies generated from preference assessments that included either toys or videos of the toys. The top-ranked item corresponded in both assessments for 5 of the 6…

Snyder, Katie; Higbee, Thomas S.; Dayton, Elizabeth

2012-01-01

479

Galactic Arms Race: an experiment in evolving video game content  

Microsoft Academic Search

Galactic Arms Race (GAR) is an indie video game developed by the Evolutionary Complexity Research Group (EPlex) at the University of Central Florida to demonstrate the potential for novel artificial intelligence (AI) technology to impact video games. In particular, the new technology in GAR is an evolutionary algorithm called content-generating neuroevolution of augmenting topologies (cgNEAT), which is designed to evolve

Erin J. Hastings; Kenneth O. Stanley

2010-01-01

480

Preliminary Investigation of a Video-Based Stimulus Preference Assessment  

ERIC Educational Resources Information Center

Video clips may be an effective format for presenting complex stimuli in preference assessments. In this preliminary study, we evaluated the correspondence between preference hierarchies generated from preference assessments that included either toys or videos of the toys. The top-ranked item corresponded in both assessments for 5 of the 6…

Snyder, Katie; Higbee, Thomas S.; Dayton, Elizabeth

2012-01-01

481

A Realistic Reaction System for Modern Video Games  

Microsoft Academic Search

The substantial growth of the video game industry has fueled a search for new technologies and methodologies for providing rich and rewarding experiences for players of modern video games. Many of the most popular games offer visually rich and compelling environments to support a higher level of believability and immersion for the players. Recent generations of games have also offered

Michael Katchabaw; Stephen Danton; Leif Gruenwoldt

2005-01-01

482

Calendar-Life and Cycle-Life Studies of Advanced Technology Development Program Generation 1 Lithium-Ion Batteries  

SciTech Connect

This paper presents the test results and life modeling of special calendar- and cycle-life tests conducted on 18650-size generation 1 (Gen 1) lithium-ion battery cells (nominal capacity of 0.9 Ah; 3.0–4.1 V rating) developed to establish a baseline chemistry and performance for the Department of Energy sponsored advanced technology development (ATD) program. Electrical performance testing was conducted at the Argonne National Laboratory (ANL), Sandia National Laboratory (SNL) and the Idaho National Engineering and Environmental Laboratory (INEEL). As part of the electrical performance testing, a new calendar-life test protocol was used. The test consisted of a once per day discharge and charge pulse designed to have minimal impact on the cell yet establish its performance over a period of time such that the calendar-life of the cell could be determined. The calendar-life test matrix included two states-of-charge (SOCs) (i.e. 60 and 80%) and four test temperatures (40, 50, 60 and 70 °C). Discharge and regen resistances were calculated from the test data. Results indicate that both the discharge and regen resistances increased non-linearly as a function of the test time. The magnitude of the resistances depended on the temperature and SOC at which the test was conducted. Both resistances had a non-linear increase with respect to time at test temperature. The discharge resistances are greater than the regen resistances at all of the test temperatures of 40, 50, 60 and 70 °C. For both the discharge and regen resistances, generally the higher the test temperature, the lower the resistance.

Wright, Randy Ben; Motloch, Chester George; Belt, Jeffrey R; Christophersen, Jon Petter; Ho, Chinh Dac; Richardson, Roger Allen; Bloom, I.; Jones, S. A.; Battaglia, Vincent S.; Henriksen, G. L.; Unkelhaeuser, T.; Ingersoll, D.; Case, H. L.; Rogers, S. A.; Sutula, R. A.

2002-08-01

483

Multiple Sensor Camera for Enhanced Video Capturing  

NASA Astrophysics Data System (ADS)

A resolution of camera has been drastically improved under a current request for high-quality digital images. For example, digital still camera has several mega pixels. Although a video camera has the higher frame-rate, the resolution of a video camera is lower than that of still camera. Thus, the high-resolution is incompatible with the high frame rate of ordinary cameras in market. It is difficult to solve this problem by a single sensor, since it comes from physical limitation of the pixel transfer rate. In this paper, we propose a multi-sensor camera for capturing a resolution and frame-rate enhanced video. Common multi-CCDs camera, such as 3CCD color camera, has same CCD for capturing different spectral information. Our approach is to use different spatio-temporal resolution sensors in a single camera cabinet for capturing higher resolution and frame-rate information separately. We build a prototype camera which can capture high-resolution (2588×1958 pixels, 3.75 fps) and high frame-rate (500×500, 90 fps) videos. We also proposed the calibration method for the camera. As one of the application of the camera, we demonstrate an enhanced video (2128×1952 pixels, 90 fps) generated from the captured videos for showing the utility of the camera.

Nagahara, Hajime; Kanki, Yoshinori; Iwai, Yoshio; Yachida, Masahiko

484

A novel 3D scalable video compression algorithm  

NASA Astrophysics Data System (ADS)

In this paper we propose a scalable video coding scheme that utilizes the embedded block coding with optimal truncation (EBCOT) compression algorithm. Three dimensional spatio-temporal decomposition of the video sequence succeeded by compression using the EBCOT generates a SNR and resolution scalable bit stream. The proposed video coding algorithm not only performs closer to the MPEG-4 video coding standard in compression efficiency but also provides better SNR and resolution scalability. Experimental results show that the performance of the proposed algorithm does better than the 3-D SPIHT (Set Partitioning in Hierarchial Trees) algorithm by 1.5dB.

Somasundaram, Siva; Subbalakshmi, Koduvayur P.

2003-05-01

485

Mass Spectrometry Video  

NSDL National Science Digital Library

This video, distributed on YouTube by the Royal Society of Chemistry is on the basic principles of mass spectrometry, using a magnetic sector instrument to demonstrate how specific m/z ratios can be selected. The theory and operation of MS, including the chemistry of ionization and fragmentation is described at an introductory level. There is also an excellent example of the use of high resolution MS to differentiate between nominal mass and actual mass. The video does a very good job of explaining the concept such that only a little background knowledge is required. The video is short enough (6 mins), that it would be very useful in a class setting or for students outside of class. The ultimate strength of this video is the general nature of the content that makes it appealing to a wide audience. The video may be most appropriate in a lower-level general education science course (i.e forensic science) or as a quick orientation video for instrumental analysis students prior to introducing mathematical or operational concepts. This video would also be helpful for a lay science person who wishes to learn more about mass spectrometry from a general interest perspective.

2011-06-08

486

Community Video Education Trust  

NSDL National Science Digital Library

The mission of the Community Video Education Trust (CVET) in Cape Town, South Africa, is to provide the community with media access and use this access as a way to bring about social change. Additionally, CVET was also created to train community members in video and commercial productions. This website has footage from the late 1980s and early 1990s of anti-apartheid activity. Trade unions, student and political organizations, and the United Democratic Front are all represented in the videos. Visitors should check out the "About Project" link on the left side of the page to see the many organizations involved in creating the website, including Michigan State University's African Studies Center. Each organization's website can be accessed by the links on this page. Visitors can access the search function by clicking on the "Search" link on the left side of the page. Videos can be searched by title or date. To browse for videos, visitors can click on "Browse" on the left side of the page. From there, they can choose from "People", "Organizations", "Featured Videos", "Short Clips" or "Genres". In "Genres", visitors can opt for videos of "Interviews", "Demonstrations", "Speeches", "Funerals", "Meetings", "Celebrations" or "Drama".

487

Panorama video server system  

NASA Astrophysics Data System (ADS)

A panorama video server system has been developed. This system produces a continuous panoramic view of the entire surrounding area in real time and allows multiple users to select and view visual fields independently. A significant feature of the system is that each user can select the visual field he or she wants to see at the same time. This new system is composed of video cameras, video signal conversion units, video busses, and visual field selection units. It can be equipped with up to 24 video cameras. The most appropriate camera arrangement can be decided by considering both the objects to be taken and the viewing angle of the cameras. The visual field selection unit picks up the required image data from video busses, on which all of the video data is provided. The number of users who can access simultaneously depends only on the number of visual field selection units. To smoothly connect two images captured by different cameras, a luminance-compensating function and a geometry-compensating function are included. This system has many interesting applications, such as in the distribution of beautiful scenery, sports, and monitoring.

Okimura, Takayuki; Kimura, Kazuo; Nakazawa, Kenji; Nakajima, Hideki

1998-04-01

488

Autosophy Internet video  

NASA Astrophysics Data System (ADS)

A new television system based on the Autosophy information theory is now being developed for Internet video applications. Autosophy communication is already widely used on the Internet, with current applications including data compression in V.42bis modems, and the lossless still image compression standards GIF and TIF. Now Autosophy Internet video is being developed and is ready for demonstration. In conventional television, bit rates are determined entirely by screen size, resolution, and scanning rates. The images shown on the screen are irrelevant, such that random noise video requires the same bit rate as any other video content. In the new Autosophy-based television, in contrast, bit rates are determined entirely by the video content, essentially motion and complexity within the images. A very high degree of visually lossless video compression is possible because only moving portions of the video are transmitted. Transmitted codes represent multi-pixel image clusters found in a pre-grown hyperspace library. The system can dynamically reduce resolution of fast-moving objects when necessary to accommodate bandwidth restrictions. Ideally suited to the Internet environment, the new television also features high resistance to delayed or dropped packets, a universal hardware-independent communication format, and optional codebook encryption for secure communications.

Holtz, Klaus E.; Holtz, Eric S.

2001-12-01