WorldWideScience

Sample records for computer generated movies

  1. Computer generated movies at Hanford

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, C.H.; Fox, G.L.

    1979-10-01

    The message contained in the results of a large computer program is often difficult to present to large groups of people. This difficulty may be overcome by using 16mm color movie techniques. This presentation shows the results of directly using computer output to explain a story about fuel behavior during a power transient.

  2. Computer graphics techniques and computer-generated movies

    Science.gov (United States)

    Holzman, Robert E.; Blinn, James F.

    1988-04-01

    The JPL Computer Graphics Laboratory (CGL) has been using advanced computer graphics for more than ten years to simulate space missions and related activities. Applications have ranged from basic computer graphics used interactively to allow engineers to study problems, to sophisticated color graphics used to simulate missions and produce realistic animations and stills for use by NASA and the scientific press. In addition, the CGL did the computer animation for ``Cosmos'', a series of general science programs done for Public Television in the United States by Carl Sagan and shown world-wide. The CGL recently completed the computer animation for ``The Mechanical Universe'', a series of fifty-two half-hour elementary physics lectures, led by Professor David Goodstein of the California Institute of Technology, and now being shown on Public Television in the US. For this series, the CGL produced more than seven hours of computer animation, averaging approximately eight minutes and thirty seconds of computer animation per half-hour program. Our aim at the JPL Computer Graphics Laboratory (CGL) is the realistic depiction of physical phenomena, that is, we deal primarily in ``science education'' rather than in scientific research. Of course, our attempts to render physical events realistically often require the development of new capabilities through research or technology advances, but those advances are not our primary goal.

  3. Chatbot trained on movie dialogue

    OpenAIRE

    2014-01-01

    A chatbot is a computer program that engages in written or spoken conversation with a human user. This project aims to investigate the possibility of training a chatbot in using movie dialogue in generating the response. Movie dialogue can be found in both movie scripts as well as subtitles, though using subtitles is much easier as they follow a special formatting. Using one subtitle as a response to each word found in the preceding subtitle, the implemented chatbot links together subtitles. ...

  4. Automated Production of Movies on a Cluster of Computers

    Science.gov (United States)

    Nail, Jasper; Le, Duong; Nail, William L.; Nail, William

    2008-01-01

    A method of accelerating and facilitating production of video and film motion-picture products, and software and generic designs of computer hardware to implement the method, are undergoing development. The method provides for automation of most of the tedious and repetitive tasks involved in editing and otherwise processing raw digitized imagery into final motion-picture products. The method was conceived to satisfy requirements, in industrial and scientific testing, for rapid processing of multiple streams of simultaneously captured raw video imagery into documentation in the form of edited video imagery and video derived data products for technical review and analysis. In the production of such video technical documentation, unlike in production of motion-picture products for entertainment, (1) it is often necessary to produce multiple video derived data products, (2) there are usually no second chances to repeat acquisition of raw imagery, (3) it is often desired to produce final products within minutes rather than hours, days, or months, and (4) consistency and quality, rather than aesthetics, are the primary criteria for judging the products. In the present method, the workflow has both serial and parallel aspects: processing can begin before all the raw imagery has been acquired, each video stream can be subjected to different stages of processing simultaneously on different computers that may be grouped into one or more cluster(s), and the final product may consist of multiple video streams. Results of processing on different computers are shared, so that workers can collaborate effectively.

  5. Preperation of Scientific Movies

    Directory of Open Access Journals (Sweden)

    Bülent Pekdağ

    2007-12-01

    Full Text Available This study aims to provide information on the preparation of the scientific movies as a part of Information and Communications Technology. The preparation stages of the scientific movies and their visualizations on computer screens were described. For preparing movies, the unit on the "acid-base reactions" on 11th grade French chemistry curriculum was used, and the knowledge presented in the movies was determined by an analysis of the 11th grade chemistry curriculum and the chemistry books. Also, the information that will be beneficial for readers and researchers on the scenario preparation of scientific movies and picture selection was mentioned.

  6. Generation of chemical movies: FT-IR spectroscopic imaging of segmented flows.

    Science.gov (United States)

    Chan, K L Andrew; Niu, X; deMello, A J; Kazarian, S G

    2011-05-01

    We have previously demonstrated that FT-IR spectroscopic imaging can be used as a powerful, label-free detection method for studying laminar flows. However, to date, the speed of image acquisition has been too slow for the efficient detection of moving droplets within segmented flow systems. In this paper, we demonstrate the extraction of fast FT-IR images with acquisition times of 50 ms. This approach allows efficient interrogation of segmented flow systems where aqueous droplets move at a speed of 2.5 mm/s. Consecutive FT-IR images separated by 120 ms intervals allow the generation of chemical movies at eight frames per second. The technique has been applied to the study of microfluidic systems containing moving droplets of water in oil and droplets of protein solution in oil. The presented work demonstrates the feasibility of the use of FT-IR imaging to study dynamic systems with subsecond temporal resolution.

  7. Rating Movies and Rating the Raters Who Rate Them

    OpenAIRE

    Zhou, Hua; Lange, Kenneth

    2009-01-01

    The movie distribution company Netflix has generated considerable buzz in the statistics community by offering a million dollar prize for improvements to its movie rating system. Among the statisticians and computer scientists who have disclosed their techniques, the emphasis has been on machine learning approaches. This article has the modest goal of discussing a simple model for movie rating and other forms of democratic rating. Because the model involves a large number of parameters, it is...

  8. Galatea ¬â€?An Interactive Computer Graphics System For Movie And Video Analysis

    Science.gov (United States)

    Potel, Michael J.; MacKay, Steven A.; Sayre, Richard E.

    1983-03-01

    Extracting quantitative information from movie film and video recordings has always been a difficult process. The Galatea motion analysis system represents an application of some powerful interactive computer graphics capabilities to this problem. A minicomputer is interfaced to a stop-motion projector, a data tablet, and real-time display equipment. An analyst views a film and uses the data tablet to track a moving position of interest. Simultaneously, a moving point is displayed in an animated computer graphics image that is synchronized with the film as it runs. Using a projection CRT and a series of mirrors, this image is superimposed on the film image on a large front screen. Thus, the graphics point lies on top of the point of interest in the film and moves with it at cine rates. All previously entered points can be displayed simultaneously in this way, which is extremely useful in checking the accuracy of the entries and in avoiding omission and duplication of points. Furthermore, the moving points can be connected into moving stick figures, so that such representations can be transcribed directly from film. There are many other tools in the system for entering outlines, measuring time intervals, and the like. The system is equivalent to "dynamic tracing paper" because it is used as though it were tracing paper that can keep up with running movie film. We have applied this system to a variety of problems in cell biology, cardiology, biomechanics, and anatomy. We have also extended the system using photogrammetric techniques to support entry of three-dimensional moving points from two (or more) films taken simultaneously from different perspective views. We are also presently constructing a second, lower-cost, microcomputer-based system for motion analysis in video, using digital graphics and video mixing to achieve the graphics overlay for any composite video source image.

  9. Computer Assisted Parallel Program Generation

    CERN Document Server

    Kawata, Shigeo

    2015-01-01

    Parallel computation is widely employed in scientific researches, engineering activities and product development. Parallel program writing itself is not always a simple task depending on problems solved. Large-scale scientific computing, huge data analyses and precise visualizations, for example, would require parallel computations, and the parallel computing needs the parallelization techniques. In this Chapter a parallel program generation support is discussed, and a computer-assisted parallel program generation system P-NCAS is introduced. Computer assisted problem solving is one of key methods to promote innovations in science and engineering, and contributes to enrich our society and our life toward a programming-free environment in computing science. Problem solving environments (PSE) research activities had started to enhance the programming power in 1970's. The P-NCAS is one of the PSEs; The PSE concept provides an integrated human-friendly computational software and hardware system to solve a target ...

  10. Computer-generated image hologram

    Institute of Scientific and Technical Information of China (English)

    Takeshi Yamaguchi; Hiroshi Yoshikawa

    2011-01-01

    We investigate the computer-generated hologram with full parallax and which can be reconstructed with white light. The object of the hologram is processed from three-dimensional computer graphics polygon data and has shaded surface for hidden surface removal. The optically reconstructed image from the printed hologram is evaluated.%We investigate the computer-generated hologram with full parallax and which can be reconstructed with white light.The object of the hologram is processed from three-dimensional computer graphics polygon data and has shaded surface for hidden surface removal.The optically reconstructed image from the printed hologram is evaluated.

  11. Embracing Computer-Generated Age

    Institute of Scientific and Technical Information of China (English)

    李小蕾; DougLubbers

    2004-01-01

    Nowadays, computer is playing an increas-ingly important role in our daily life. In fact1, it has replaced manpower in a variety of fields.Will the world become a computer-generated world someday? How fantastic it will be if I can live to see those2 earth-shaking changes. At this moment, a little bit3 imagination may help…

  12. Computer-Generated Feedback on Student Writing

    Science.gov (United States)

    Ware, Paige

    2011-01-01

    A distinction must be made between "computer-generated scoring" and "computer-generated feedback". Computer-generated scoring refers to the provision of automated scores derived from mathematical models built on organizational, syntactic, and mechanical aspects of writing. In contrast, computer-generated feedback, the focus of this article, refers…

  13. Computer-Generated Feedback on Student Writing

    Science.gov (United States)

    Ware, Paige

    2011-01-01

    A distinction must be made between "computer-generated scoring" and "computer-generated feedback". Computer-generated scoring refers to the provision of automated scores derived from mathematical models built on organizational, syntactic, and mechanical aspects of writing. In contrast, computer-generated feedback, the focus of this article, refers…

  14. Talking Movies

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Film makers from both China and the United States gather in Beijing to discuss the art of making movies As the world becomes ever more globalized, every aspect of social, economic and cultural life is subject to change and influence from the outside world, the film industry is no exception.

  15. Holographic movies

    Science.gov (United States)

    Palais, Joseph C.; Miller, Mark E.

    1996-09-01

    A unique method for the construction and display of a 3D holographic movie is developed. An animated film is produced by rotating a 3D object in steps between successive holographic exposures. Strip holograms were made on 70-mm AGFA 8E75 Holotest roll film. Each hologram was about 11-mm high and 55-mm high and 55-mm wide. The object was rotated 2 deg between successive exposures. A complete cycle of the object motion was recorded on 180 holograms using the lensless Fourier transform construction. The ends of the developed film were spliced together to produce a continuous loop. Although the film moves continuously on playback and there is not shutter, there is no flicker or image displacement because of the Fourier transform hologram construction, as predicted by the theoretical analysis. The movie can be viewed for an unlimited time because the object motion is cyclical and the film is continuous. The film is wide enough such that comfortable viewing with both eyes is possible, enhancing the 3D effect. Viewers can stand comfortably away from the film since no viewing slit or aperture is necessary. Several people can simultaneously view the movie.

  16. Movies in Chemistry Education

    Science.gov (United States)

    Pekdag, Bulent; Le Marechal, Jean-Francois

    2010-01-01

    This article reviews numerous studies on chemistry movies. Movies, or moving pictures, are important elements of multimedia and signify a privileged or motivating means of presenting knowledge. Studies on chemistry movies show that the first movie productions in this field were devoted to university lectures or documentaries. Shorter movies were…

  17. 48 CFR 53.105 - Computer generation.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Computer generation. 53.105 Section 53.105 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION (CONTINUED) CLAUSES AND FORMS FORMS General 53.105 Computer generation. (a) Agencies may computer-generate the...

  18. Cartoons, movies

    DEFF Research Database (Denmark)

    Sheikh, Mona Kanwal; Gad, Ulrik Pram

    Dutch MP Geert Wilders has declared that he will soon release a 15 minutes movie called "Fitna" to make his criticism of the Quran more trenchant. "Fitna" is likely to meet harsh reactions. Both because the modus operandi of Wilders falls nicely into what have become a specific genre of political...... targeted at the provoker. It seems like there is a pattern in these self-reinforcing cycles of conflict that needs responsible reconsideration: Staunch defence of principles come in the way of dialogue and diplomacy....

  19. Computer-Generated Polarization Holography

    Science.gov (United States)

    Nakajima, Masato; Mitsuhashi, Yoshinobu

    1983-10-01

    The concept of a computer-generated polarization hologram (CPH) is based on the anisotropic interaction of light with photodichroic crystals. The most unique feature of this technique lies in the realization of phase information recording without the application of the detour phase or the optical path difference effect as used in the conventional technique. Basic principle of information writing and reading scheme using M-centers in alkali halide crystals such as sodium flouride ( NaF ) are descrived, and several technical merits and problems associated with this method are presented. This technique provides a real-time holographic system where accurate recordability and high storage capacity are attainable due to its possibility of recording a calcurated complex amplitude of wavefront only by means of controlling the polarization direction of illuminating beam. We also report on our trially developed automatic hologram making and reading system with the results of its operation experiment, and on discussions concerning the quality of the reconstructed image. We succeeded in completing a full automatic system which is able to make holograms automatically in a short time and in observing a reconstructed image of good quality in real-time.

  20. Movie Popularity Classification based on Inherent Movie Attributes using C4.5, PART and Correlation Coefficient

    DEFF Research Database (Denmark)

    Ibnal Asad, Khalid; Ahmed, Tanvir; Rahman, Md. Saiedur

    2012-01-01

    Abundance of movie data across the internet makes it an obvious candidate for machine learning and knowledge discovery. But most researches are directed towards bi-polar classification of movie or generation of a movie recommendation system based on reviews given by viewers on various internet si...... propose classification scheme of pre-release movie popularity based on inherent attributes using C4.S and PART classifier algorithm and define the relation between attributes of post release movies using correlation coefficient....

  1. Cartoons, movies

    DEFF Research Database (Denmark)

    Sheikh, Mona Kanwal; Gad, Ulrik Pram

    Dutch MP Geert Wilders has declared that he will soon release a 15 minutes movie called "Fitna" to make his criticism of the Quran more trenchant. "Fitna" is likely to meet harsh reactions. Both because the modus operandi of Wilders falls nicely into what have become a specific genre of political...... activism: to provoke religious taboos in order to insist on the right to provoke religious taboos. And because an equally recognizable genre of responses to this sort of provocations is being formed: Riots, mass demonstrations, boycotts, and in its extreme version physical threats and violent action...... targeted at the provoker. It seems like there is a pattern in these self-reinforcing cycles of conflict that needs responsible reconsideration: Staunch defence of principles come in the way of dialogue and diplomacy....

  2. Algorithmic Detection of Computer Generated Text

    CERN Document Server

    Lavoie, Allen

    2010-01-01

    Computer generated academic papers have been used to expose a lack of thorough human review at several computer science conferences. We assess the problem of classifying such documents. After identifying and evaluating several quantifiable features of academic papers, we apply methods from machine learning to build a binary classifier. In tests with two hundred papers, the resulting classifier correctly labeled papers either as human written or as computer generated with no false classifications of computer generated papers as human and a 2% false classification rate for human papers as computer generated. We believe generalizations of these features are applicable to similar classification problems. While most current text-based spam detection techniques focus on the keyword-based classification of email messages, a new generation of unsolicited computer-generated advertisements masquerade as legitimate postings in online groups, message boards and social news sites. Our results show that taking the formatti...

  3. Computer-Controlled Force Generator Project

    Data.gov (United States)

    National Aeronautics and Space Administration — TDA Research, Inc proposes to develop a compact, low power, high life-cycle computer controlled Programmable Force Generator (PFG) that can generate any force...

  4. Structured grid generator on parallel computers

    Energy Technology Data Exchange (ETDEWEB)

    Muramatsu, Kazuhiro; Murakami, Hiroyuki; Higashida, Akihiro; Yanagisawa, Ichiro

    1997-03-01

    A general purpose structured grid generator on parallel computers, which generates a large-scale structured grid efficiently, has been developed. The generator is applicable to Cartesian, cylindrical and BFC (Boundary-Fitted Curvilinear) coordinates. In case of BFC grids, there are three adaptable topologies; L-type, O-type and multi-block type, the last of which enables any combination of L- and O-grids. Internal BFC grid points can be automatically generated and smoothed by either algebraic supplemental method or partial differential equation method. The partial differential equation solver is implemented on parallel computers, because it consumes a large portion of overall execution time. Therefore, high-speed processing of large-scale grid generation can be realized by use of parallel computer. Generated grid data are capable to be adjusted to domain decomposition for parallel analysis. (author)

  5. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Old Feeding Your 1- to 2-Year-Old Diabetes Movie KidsHealth > For Parents > Diabetes Movie Print A A A Kids who have diabetes have trouble taking energy from food and delivering ...

  6. Electromagnetism in the Movies.

    Science.gov (United States)

    Everitt, Lori R.; Patterson, Evelyn T.

    1999-01-01

    Describes how the authors used portions of popular movies to help students review concepts related to electromagnetism. Movies used and concepts covered in the review are listed, and a sample activity is described. (WRM)

  7. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Teaching Kids to Be Smart About Social Media Diabetes Movie KidsHealth > For Parents > Diabetes Movie Print A A A Kids who have diabetes have trouble taking energy from food and delivering ...

  8. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Your Child Natural Disasters: How Families Can Help Diabetes Movie KidsHealth > For Parents > Diabetes Movie Print A A A Kids who have diabetes have trouble taking energy from food and delivering ...

  9. Complementary computer generated holography for aesthetic watermarking.

    Science.gov (United States)

    Martinez, Christophe; Lemonnier, Olivier; Laulagnet, Fabien; Fargeix, Alain; Tissot, Florent; Armand, Marie Françoise

    2012-02-27

    We present herein an original solution for the watermarking of holograms in binary graphic arts without unaesthetic diffractive effect. It is based on the Babinet principle of complementary diffractive structures adapted to Lohmann-type computer generated holograms. We introduce the concept and demonstrate its interest for anti-counterfeiting applications with the decoding of a hidden data matrix. A process of thermal lithography is used for the manufacturing of binary graphic arts containing complementary computer generated holograms.

  10. Interactive Computation for Undergraduates: The Next Generation

    Science.gov (United States)

    Kolan, Amy J.

    2017-05-01

    A generation ago (29 years ago), Leo Kadanoff and Michael Vinson created the Computers, Chaos, and Physics course. A major pedagogical thrust of this course was to help students form and test hypotheses via computer simulation of small problems in physics. Recently, this aspect of the 1987 course has been revived for use with first year physics undergraduate students at St. Olaf College.

  11. A survey of visually induced symptoms and associated factors in spectators of three dimensional stereoscopic movies

    Directory of Open Access Journals (Sweden)

    Solimini Angelo G

    2012-09-01

    Full Text Available Abstract Background The increasing popularity of commercial movies showing three dimensional (3D computer generated images has raised concern about image safety and possible side effects on population health. This study aims to (1 quantify the occurrence of visually induced symptoms suffered by the spectators during and after viewing a commercial 3D movie and (2 to assess individual and environmental factors associated to those symptoms. Methods A cross-sectional survey was carried out using a paper based, self administered questionnaire. The questionnaire includes individual and movie characteristics and selected visually induced symptoms (tired eyes, double vision, headache, dizziness, nausea and palpitations. Symptoms were queried at 3 different times: during, right after and after 2 hours from the movie. Results We collected 953 questionnaires. In our sample, 539 (60.4% individuals reported 1 or more symptoms during the movie, 392 (43.2% right after and 139 (15.3% at 2 hours from the movie. The most frequently reported symptoms were tired eyes (during the movie by 34.8%, right after by 24.0%, after 2 hours by 5.7% of individuals and headache (during the movie by 13.7%, right after by 16.8%, after 2 hours by 8.3% of individuals. Individual history for frequent headache was associated with tired eyes (OR = 1.34, 95%CI = 1.01-1.79, double vision (OR = 1.96; 95%CI = 1.13-3.41, headache (OR = 2.09; 95%CI = 1.41-3.10 during the movie and of headache after the movie (OR = 1.64; 95%CI = 1.16-2.32. Individual susceptibility to car sickness, dizziness, anxiety level, movie show time, animation 3D movie were also associated to several other symptoms. Conclusions The high occurrence of visually induced symptoms resulting from this survey suggests the need of raising public awareness on possible discomfort that susceptible individuals may suffer during and after the vision of 3D movies.

  12. Detecting photographic and computer generated composites

    Science.gov (United States)

    Conotter, V.; Cordin, L.

    2011-03-01

    Nowadays, sophisticated computer graphics editors lead to a significant increase in the photorealism of images. Thus, computer generated (CG) images result to be convincing and hard to be distinguished from real ones at a first glance. Here, we propose an image forensics technique able to automatically detect local forgeries, i.e., objects generated via computer graphics software inserted in natural images, and vice versa. We develop a novel hybrid classifier based on wavelet based features and sophisticated pattern noise statistics. Experimental results show the effectiveness of the proposed approach.

  13. Linguistics Computation, Automatic Model Generation, and Intensions

    CERN Document Server

    Nourani, C F

    1994-01-01

    Techniques are presented for defining models of computational linguistics theories. The methods of generalized diagrams that were developed by this author for modeling artificial intelligence planning and reasoning are shown to be applicable to models of computation of linguistics theories. It is shown that for extensional and intensional interpretations, models can be generated automatically which assign meaning to computations of linguistics theories for natural languages. Keywords: Computational Linguistics, Reasoning Models, G-diagrams For Models, Dynamic Model Implementation, Linguistics and Logics For Artificial Intelligence

  14. Next generation distributed computing for cancer research.

    Science.gov (United States)

    Agarwal, Pankaj; Owzar, Kouros

    2014-01-01

    Advances in next generation sequencing (NGS) and mass spectrometry (MS) technologies have provided many new opportunities and angles for extending the scope of translational cancer research while creating tremendous challenges in data management and analysis. The resulting informatics challenge is invariably not amenable to the use of traditional computing models. Recent advances in scalable computing and associated infrastructure, particularly distributed computing for Big Data, can provide solutions for addressing these challenges. In this review, the next generation of distributed computing technologies that can address these informatics problems is described from the perspective of three key components of a computational platform, namely computing, data storage and management, and networking. A broad overview of scalable computing is provided to set the context for a detailed description of Hadoop, a technology that is being rapidly adopted for large-scale distributed computing. A proof-of-concept Hadoop cluster, set up for performance benchmarking of NGS read alignment, is described as an example of how to work with Hadoop. Finally, Hadoop is compared with a number of other current technologies for distributed computing.

  15. Rating Movies and Rating the Raters Who Rate Them.

    Science.gov (United States)

    Zhou, Hua; Lange, Kenneth

    2009-11-01

    The movie distribution company Netflix has generated considerable buzz in the statistics community by offering a million dollar prize for improvements to its movie rating system. Among the statisticians and computer scientists who have disclosed their techniques, the emphasis has been on machine learning approaches. This article has the modest goal of discussing a simple model for movie rating and other forms of democratic rating. Because the model involves a large number of parameters, it is nontrivial to carry out maximum likelihood estimation. Here we derive a straightforward EM algorithm from the perspective of the more general MM algorithm. The algorithm is capable of finding the global maximum on a likelihood landscape littered with inferior modes. We apply two variants of the model to a dataset from the MovieLens archive and compare their results. Our model identifies quirky raters, redefines the raw rankings, and permits imputation of missing ratings. The model is intended to stimulate discussion and development of better theory rather than to win the prize. It has the added benefit of introducing readers to some of the issues connected with analyzing high-dimensional data.

  16. Streaming movies, media, and instant access

    CERN Document Server

    Dixon, Wheeler Winston

    2013-01-01

    Film stocks are vanishing, but the iconic images of the silver screen remain -- albeit in new, sleeker formats. Today, viewers can instantly stream movies on televisions, computers, and smartphones. Gone are the days when films could only be seen in theaters or rented at video stores: movies are now accessible at the click of a button, and there are no reels, tapes, or discs to store. Any film or show worth keeping may be collected in the virtual cloud and accessed at will through services like Netflix, Hulu, and Amazon Instant.The movies have changed, and we are changing with them.

  17. OAM beams from incomplete computer generated holograms

    CERN Document Server

    Zambale, Niña Angelica F; Hermosa, Nathaniel

    2016-01-01

    In this letter we show that optical beams with orbital angular momentum (OAM) can be generated even with incomplete computer generated holograms (CGH). These holograms are made such that random portions of it do not contain any information. We observe that although the beams produced with these holograms are less intense, these beams maintain their shape and that their topological charges are not affected. Furthermore, we show that superposition of two or more beams can be created using separate incomplete CGHs interspersed together. Our result is significant especially since most method to generate beams with OAM for various applications rely on pixelated devices or optical elements with imperfections.

  18. Computer programming for generating visual stimuli.

    Science.gov (United States)

    Bukhari, Farhan; Kurylo, Daniel D

    2008-02-01

    Critical to vision research is the generation of visual displays with precise control over stimulus metrics. Generating stimuli often requires adapting commercial software or developing specialized software for specific research applications. In order to facilitate this process, we give here an overview that allows nonexpert users to generate and customize stimuli for vision research. We first give a review of relevant hardware and software considerations, to allow the selection of display hardware, operating system, programming language, and graphics packages most appropriate for specific research applications. We then describe the framework of a generic computer program that can be adapted for use with a broad range of experimental applications. Stimuli are generated in the context of trial events, allowing the display of text messages, the monitoring of subject responses and reaction times, and the inclusion of contingency algorithms. This approach allows direct control and management of computer-generated visual stimuli while utilizing the full capabilities of modern hardware and software systems. The flowchart and source code for the stimulus-generating program may be downloaded from www.psychonomic.org/archive.

  19. Method of generating a computer readable model

    DEFF Research Database (Denmark)

    2008-01-01

    A method of generating a computer readable model of a geometrical object constructed from a plurality of interconnectable construction elements, wherein each construction element has a number of connection elements for connecting the construction element with another construction element. The met......A method of generating a computer readable model of a geometrical object constructed from a plurality of interconnectable construction elements, wherein each construction element has a number of connection elements for connecting the construction element with another construction element....... The method comprises encoding a first and a second one of the construction elements as corresponding data structures, each representing the connection elements of the corresponding construction element, and each of the connection elements having associated with it a predetermined connection type. The method...

  20. Enhancing Soundtracks From Old Movies

    Science.gov (United States)

    Frazer, Robert E.

    1992-01-01

    Proposed system enhances soundtracks of old movies. Signal on optical soundtrack of film digitized and processed to reduce noise and improve quality; timing signals added, and signal recorded on compact disk. Digital comparator and voltage-controlled oscillator synchronizes speed of film-drive motor and compact disk motor. Frame-coded detector reads binary frame-identifying marks on film. Digital comparator generates error signal if marks on film do not match those on compact disk.

  1. Movies and Literary Elements.

    Science.gov (United States)

    Keller, Rodney D.

    1987-01-01

    Recommends using movie clips to stimulate students' interest in reading a novel as well as to teach elements of fiction such as plot, character, setting, symbol, irony, and theme. Describes each clip and provides study questions. Includes a listing of movies made from books. (NH)

  2. "Life" in Movies

    Science.gov (United States)

    Berumen, Michael L.

    2008-01-01

    As biology teachers, we should embrace the ever-increasing appearance of biology in movies and other media as an opportunity to engage students in active learning and to facilitate critical-thinking and investigative skills in the classroom. In this article, the author provides examples and strategies from his experience using popular movies in…

  3. Searching for Movies

    DEFF Research Database (Denmark)

    Bogers, Toine

    2015-01-01

    Despite a surge in popularity of work on casual leisure search, some leisure domains are still relatively underrepresented. Movies are good example of such a domain, which is peculiar given the popularity of movie-centered websites and discovery services such as IMDB, RottenTomatoes, and Netflix...

  4. Computational Modeling of Vortex Generators for Turbomachinery

    Science.gov (United States)

    Chima, R. V.

    2002-01-01

    In this work computational models were developed and used to investigate applications of vortex generators (VGs) to turbomachinery. The work was aimed at increasing the efficiency of compressor components designed for the NASA Ultra Efficient Engine Technology (UEET) program. Initial calculations were used to investigate the physical behavior of VGs. A parametric study of the effects of VG height was done using 3-D calculations of isolated VGs. A body force model was developed to simulate the effects of VGs without requiring complicated grids. The model was calibrated using 2-D calculations of the VG vanes and was validated using the 3-D results. Then three applications of VGs to a compressor rotor and stator were investigated: 1) The results of the 3-D calculations were used to simulate the use of small casing VGs used to generate rotor preswirl or counterswirl. Computed performance maps were used to evaluate the effects of VGs. 2) The body force model was used to simulate large part-span splitters on the casing ahead of the stator. Computed loss buckets showed the effects of the VGs. 3) The body force model was also used to investigate the use of tiny VGs on the stator suction surface for controlling secondary flows. Near-surface particle traces and exit loss profiles were used to evaluate the effects of the VGs.

  5. Modifying exposure to smoking depicted in movies: a novel approach to preventing adolescent smoking.

    Science.gov (United States)

    Sargent, James D; Dalton, Madeline A; Heatherton, Todd; Beach, Mike

    2003-07-01

    Most behavioral approaches to adolescent smoking address the behavior directly. We explore an indirect approach: modifying exposure to portrayals of smoking in movies. To describe adolescents' exposure to smoking in movies and to examine factors that could modify such exposure. Occurrences of smoking were counted in each of 601 popular movies. Four thousand nine hundred ten northern New England junior high school students were asked to report which movies they had seen from a randomly generated subsample of 50 films, and responses were used to estimate exposure to the entire sample. Analysis The outcome variable was exposure to movie smoking, defined as the number of smoking occurrences seen. Risk factors for exposure included access to movies (movie channels, videotape use, and movie theater); parenting (R [restricted]-rated movie restrictions, television restrictions, parenting style); and characteristics of the child (age, sex, school performance, sensation-seeking propensity, rebelliousness, and self-esteem). We used multiple regression to assess the association between risk factors and exposure to movie smoking. Subjects had seen an average of 30% of the movie sample (interquartile range, 20%-44%), from which they were exposed to 1160 (interquartile range, 640-1970) occurrences of smoking. In a multivariate model, exposure to movie smoking increased (all P values Parent restriction on viewing R-rated movies resulted in a 50% reduction in exposure to movie smoking. There was no association between parenting style and exposure to movie smoking. Much of the protective effect of parent R-rated movie restriction on adolescent smoking was mediated through lower exposure to movie smoking. Adolescents see thousands of smoking depictions in movies, and this influences their attitudes and behavior. Exposure to movie smoking is reduced when parents limit movie access. Teaching parents to monitor and enforce movie access guidelines could reduce adolescent smoking in an

  6. Collaborative Movie Annotation

    Science.gov (United States)

    Zad, Damon Daylamani; Agius, Harry

    In this paper, we focus on metadata for self-created movies like those found on YouTube and Google Video, the duration of which are increasing in line with falling upload restrictions. While simple tags may have been sufficient for most purposes for traditionally very short video footage that contains a relatively small amount of semantic content, this is not the case for movies of longer duration which embody more intricate semantics. Creating metadata is a time-consuming process that takes a great deal of individual effort; however, this effort can be greatly reduced by harnessing the power of Web 2.0 communities to create, update and maintain it. Consequently, we consider the annotation of movies within Web 2.0 environments, such that users create and share that metadata collaboratively and propose an architecture for collaborative movie annotation. This architecture arises from the results of an empirical experiment where metadata creation tools, YouTube and an MPEG-7 modelling tool, were used by users to create movie metadata. The next section discusses related work in the areas of collaborative retrieval and tagging. Then, we describe the experiments that were undertaken on a sample of 50 users. Next, the results are presented which provide some insight into how users interact with existing tools and systems for annotating movies. Based on these results, the paper then develops an architecture for collaborative movie annotation.

  7. An Analysis on American Individualism in the Disney Movie Mulan

    Institute of Scientific and Technical Information of China (English)

    田玮

    2013-01-01

    Movie is an important part of modern civilized life, which embodies abundant cultural elements. The culture of a na⁃tion can be portrayed vividly in its movie. Hua Mulan, who is a famous legendary woman in Chinese history, and her story has sung from generation to generation. But we see a Hollywood-like Hua Mulan in the Walt Disney movie Mulan, and American individualism can be found everywhere in this movie. The present study is going to discuss the American individualism in the movie Mulan, and at the same time, find out the main features of individualism according to this movie, namely, self-identity, in⁃dependence, self-development and self-realization.

  8. Positive computer-generated exercise electrocardiogram.

    Science.gov (United States)

    MacKenzie, Ross

    2006-01-01

    The use of computerized averaging of the electrocardiogram (ECG) during stress testing has facilitated the removal of motion artifacts and baseline shifts. However, this process can introduce errors, which may not be appreciated by medical directors. Such errors can lead to significant ST depression in the absence of coronary artery disease. Such false-positive tests may lead to anxiety in the applicant, delays in accepting the application and unnecessary additional testing. This case study illustrates a common pitfall associated with using only a computer-generated exercise ECG for risk assessment of a life insurance applicant.

  9. Computer modeling of thermoelectric generator performance

    Science.gov (United States)

    Chmielewski, A. B.; Shields, V.

    1982-01-01

    Features of the DEGRA 2 computer code for simulating the operations of a spacecraft thermoelectric generator are described. The code models the physical processes occurring during operation. Input variables include the thermoelectric couple geometry and composition, the thermoelectric materials' properties, interfaces and insulation in the thermopile, the heat source characteristics, mission trajectory, and generator electrical requirements. Time steps can be specified and sublimation of the leg and hot shoe is accounted for, as are shorts between legs. Calculations are performed for conduction, Peltier, Thomson, and Joule heating, the cold junction can be adjusted for solar radition, and the legs of the thermoelectric couple are segmented to enhance the approximation accuracy. A trial run covering 18 couple modules yielded data with 0.3% accuracy with regard to test data. The model has been successful with selenide materials, SiGe, and SiN4, with output of all critical operational variables.

  10. Forecasting global generation of obsolete personal computers.

    Science.gov (United States)

    Yu, Jinglei; Williams, Eric; Ju, Meiting; Yang, Yan

    2010-05-01

    Electronic waste (e-waste) has emerged as a new policy priority around the world. Motivations to address e-waste include rapidly growing waste streams, concern over the environmental fate of heavy metals and other substances in e-waste, and impacts of informal recycling in developing countries. Policy responses to global e-waste focus on banning international trade in end-of-life electronics, the premise being that e-waste is mainly generated in the developed world and then exported to the developing world. Sales of electronics have, however, been growing rapidly in developing nations, raising the question of whether informal recycling in developing countries driven by international trade or domestic generation. This paper addresses this question by forecasting the global generation of obsolete personal computers (PCs) using the logistic model and material flow analysis. Results show that the volume of obsolete PCs generated in developing regions will exceed that of developed regions by 2016-2018. By 2030, the obsolete PCs from developing regions will reach 400-700 million units, far more than from developed regions at 200-300 million units. Future policies to mitigate the impacts of informal recycling should address the domestic situation in developing countries.

  11. Early Prediction of Movie Box Office Success based on Wikipedia Activity Big Data

    CERN Document Server

    Mestyán, Márton; Kertész, János

    2012-01-01

    Use of socially generated "big data" to access information about collective states of the minds in human societies becomes a new paradigm in the emerging field of computational social science. One of the natural application of this would be prediction of the society's reaction to a new product in the sense of popularity and adoption rate. However, bridging between "real time monitoring" and "early predicting" remains as a big challenge. Here, we report on an endeavor to build a minimalistic predictive model for the financial success of movies based on collective activity data of online users. We show that the popularity of a movie could be predicted well in advance by measuring and analyzing the activity level of editors and viewers of the corresponding entry to the movie in Wikipedia, the well-known online encyclopedia.

  12. Early prediction of movie box office success based on Wikipedia activity big data.

    Directory of Open Access Journals (Sweden)

    Márton Mestyán

    Full Text Available Use of socially generated "big data" to access information about collective states of the minds in human societies has become a new paradigm in the emerging field of computational social science. A natural application of this would be the prediction of the society's reaction to a new product in the sense of popularity and adoption rate. However, bridging the gap between "real time monitoring" and "early predicting" remains a big challenge. Here we report on an endeavor to build a minimalistic predictive model for the financial success of movies based on collective activity data of online users. We show that the popularity of a movie can be predicted much before its release by measuring and analyzing the activity level of editors and viewers of the corresponding entry to the movie in Wikipedia, the well-known online encyclopedia.

  13. Computer Generated Cardiac Model For Nuclear Medicine

    Science.gov (United States)

    Hills, John F.; Miller, Tom R.

    1981-07-01

    A computer generated mathematical model of a thallium-201 myocardial image is described which is based on realistic geometric and physiological assumptions. The left ventricle is represented by an ellipsoid truncated by aortic and mitral valve planes. Initially, an image of a motionless left ventricle is calculated with the location, size, and relative activity of perfusion defects selected by the designer. The calculation includes corrections for photon attenuation by overlying structures and the relative distribution of activity within the tissues. Motion of the ventricular walls is simulated either by a weighted sum of images at different stages in the cardiac cycle or by a blurring function whose width varies with position. Camera and collimator blurring are estimated by the MTF of the system measured at a representative depth in a phantom. Statistical noise is added using a Poisson random number generator. The usefulness of this model is due to two factors: the a priori characterization of location and extent of perfusion defects and the strong visual similarity of the images to actual clinical studies. These properties should permit systematic evaluation of image processing algorithms using this model. The principles employed in developing this cardiac image model can readily be applied to the simulation of other nuclear medicine studies and to other medical imaging modalities including computed tomography, ultrasound, and digital radiography.

  14. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Your Child What Kids Say About: Handling Stress Anxiety, Fears, and Phobias Community Service: A Family's Guide ... Diabetes: Lindsey's Story (Video) Diabetes Center Movie: Endocrine System Diabetes Center Diabetes: DJ's Story (Video) Diabetes: Marco's ...

  15. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... the trillions of cells that make up the body. Watch this movie to learn more about diabetes. ... doctor. © 1995- The Nemours Foundation. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, ...

  16. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... the trillions of cells that make up the body. Watch this movie to learn more about diabetes. ... 1995- The Nemours Foundation. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, ...

  17. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Diabetes: Lindsey's Story (Video) Diabetes Center Movie: Endocrine System Diabetes ... of Nondiscrimination Visit the Nemours Web site. Note: All information on KidsHealth® is for ...

  18. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Conditions Pregnancy & Baby Nutrition & Fitness Emotions & Behavior School & Family Life First Aid & Safety Doctors & Hospitals Q&A ... Media Use Affects Your Child Natural Disasters: How Families Can Help Diabetes Movie KidsHealth > For Parents > Diabetes ...

  19. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Parents Help Kids Handle Teasing? Talking to Your Child About Puberty Helping Kids Deal With Bullies How Media Use Affects Your Child Natural Disasters: How Families Can Help Diabetes Movie ...

  20. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Diabetes: Lindsey's Story (Video) Diabetes Center Movie: Endocrine System Diabetes ... Visit the Nemours Web site. Note: All information on KidsHealth® is for educational purposes only. For ...

  1. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Diabetes: Lindsey's Story (Video) Diabetes Center Movie: Endocrine System Diabetes Center Diabetes: DJ's Story ... About KidsHealth Nemours.org Reading BrightStart! Contact Us ...

  2. Presence While Watching Movies

    Directory of Open Access Journals (Sweden)

    Tom Troscianko

    2011-05-01

    Full Text Available “Presence” is the illusion of being in a mediated experience rather than simply being an observer. It is a concept often applied to the question of realism of virtual environments. However, it is equally applicable to the act of watching a movie. A movie provides a markedly different visual environment to that given by the natural world—particularly because of frequent edits. And yet, the audience in a movie achieves high levels of presence. We investigate the relationship between presence and the optical and temporal parameters of movies. We find effects of mean shot length, colour/b&w, and 3D/2D. We find that short shots, while being unnatural, are associated with high levels of presence. We consider why such artificial stimuli should appear so real and immersive.

  3. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Diabetes: Lindsey's Story (Video) Diabetes Center Movie: Endocrine System Diabetes ... Visit the Nemours Web site. Note: All information on KidsHealth® is for educational purposes only. For ...

  4. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... make up the body. Watch this movie to learn more about diabetes. For Teens For Kids For ... doctor. © 1995- The Nemours Foundation. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, ...

  5. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... KidsHealth from Nemours for Parents for Kids for Teens Search Parents Home General Health Growth & Development Infections ... this movie to learn more about diabetes. For Teens For Kids For Parents MORE ON THIS TOPIC ...

  6. Hong Kong New Generation Movie under Scattered Main Trend and Moleitau Carnival%主体趋向零散与无厘头狂欢下的香港新生代电影

    Institute of Scientific and Technical Information of China (English)

    杨曙

    2012-01-01

    香港新浪潮后的不少电影应该都属于新生代电影系列当中,新生代电影题材方面主要体现为主体零散化或无厘头狂欢特征,主要代表电影分别为王家卫电影和周星驰电影。%Many Hong Kong movies belong to the new generation movie series after its new trend.Their theme is mainly embodied in scattered main trend and moleitau carnival.The main representatives are those directed by WONG Kar-wai and Stephen CHOW.

  7. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... Lessons? Visit KidsHealth in the Classroom What Other Parents Are Reading Your Child's Development (Birth to 3 Years) Feeding Your 1- to 3-Month-Old Feeding Your 4- to 7-Month-Old Feeding Your 8- to 12-Month-Old Feeding Your 1- to 2-Year-Old Diabetes Movie ... For Parents > Diabetes Movie Print A A A Kids who ...

  8. Method of generating a computer readable model

    DEFF Research Database (Denmark)

    2008-01-01

    A method of generating a computer readable model of a geometrical object constructed from a plurality of interconnectable construction elements, wherein each construction element has a number of connection elements for connecting the construction element with another construction element....... The method comprises encoding a first and a second one of the construction elements as corresponding data structures, each representing the connection elements of the corresponding construction element, and each of the connection elements having associated with it a predetermined connection type. The method...... further comprises determining a first connection element of the first construction element and a second connection element of the second construction element located in a predetermined proximity of each other; and retrieving connectivity information of the corresponding connection types of the first...

  9. An Analytical Study of Tools and Techniques for Movie Marketing

    Directory of Open Access Journals (Sweden)

    Garima Maik

    2014-08-01

    Full Text Available Abstract. Bollywood or Hindi movie industry is one of the fastest growing sector in the media and entertainment space creating numerous business and employment opportunities. Movies in India are a major source of entertainment for all sects of society. They not only face competition from other movie industries and movies but from other source of entertainment such as adventure sports, amusement parks, theatre and drama, pubs and discothèques. A lot of man power, man hours, creative brains, and money are put in to build a quality feature film. Bollywood is the industry which continuously works towards providing the 7 billion population with something new always. So it is important for the movie and production team to stand out, to grab the due attention of the maximum audience. Movie makers employ various tools and techniques today to market their movies. They leave no stone unturned. They roll out teasers, First look, Theatrical trailer release, Music launch, City tours, Producer’s and director’s interview, Movie premier, Movie release, post release follow up and etc. to pull the viewers to the Cineplex. The audience today which comprises mainly of youth requires photos, videos, meet ups, gossip, debate, collaboration and content creation. These requirements of today’s generation are most fulfilled through digital platforms. However, the traditional media like newspapers, radio, and television are not old school. They reach out to mass audience and play an upper role in effective marketing. This study aims at analysing these tools for their effectiveness. The objectives are fulfilled through a consumer survey. This study will bring out the effectiveness and relational importance of various tools which are employed by movie marketers to generate maximum returns on the investments by using various data reduction techniques like factor analysis and statistical techniques like chi-square test with data visualization using pie charts

  10. An Analytical Study of Tools and Techniques for Movie Marketing

    Directory of Open Access Journals (Sweden)

    Garima Maik

    2014-08-01

    Full Text Available Abstract. Bollywood or Hindi movie industry is one of the fastest growing sector in the media and entertainment space creating numerous business and employment opportunities. Movies in India are a major source of entertainment for all sects of society. They not only face competition from other movie industries and movies but from other source of entertainment such as adventure sports, amusement parks, theatre and drama, pubs and discothèques. A lot of man power, man hours, creative brains, and money are put in to build a quality feature film. Bollywood is the industry which continuously works towards providing the 7 billion population with something new always. So it is important for the movie and production team to stand out, to grab the due attention of the maximum audience. Movie makers employ various tools and techniques today to market their movies. They leave no stone unturned. They roll out teasers, First look, Theatrical trailer release, Music launch, City tours, Producer’s and director’s interview, Movie premier, Movie release, post release follow up and etc. to pull the viewers to the Cineplex. The audience today which comprises mainly of youth requires photos, videos, meet ups, gossip, debate, collaboration and content creation. These requirements of today’s generation are most fulfilled through digital platforms. However, the traditional media like newspapers, radio, and television are not old school. They reach out to mass audience and play an upper role in effective marketing. This study aims at analysing these tools for their effectiveness. The objectives are fulfilled through a consumer survey. This study will bring out the effectiveness and relational importance of various tools which are employed by movie marketers to generate maximum returns on the investments by using various data reduction techniques like factor analysis and statistical techniques like chi-square test with data visualization using pie charts

  11. Voyager 1 'Blue Movie'

    Science.gov (United States)

    2000-01-01

    This is the original Voyager 'Blue Movie' (so named because it was built from Blue filter images). It records the approach of Voyager 1 during a period of over 60 Jupiter days. Notice the difference in speed and direction of the various zones of the atmosphere. The interaction of the atmospheric clouds and storms shows how dynamic the Jovian atmosphere is.As Voyager 1 approached Jupiter in 1979, it took images of the planet at regular intervals. This sequence is made from 66 images taken once every Jupiter rotation period (about 10 hours). This time-lapse movie uses images taken every time Jupiter longitude 68W passed under the spacecraft. These images were acquired in the Blue filter from Jan. 6 to Feb. 3 1979. The spacecraft flew from 58 million kilometers to 31 million kilometers from Jupiter during that time.This time-lapse movie was produced at JPL by the Image Processing Laboratory in 1979.

  12. Galileo and the Movies

    Science.gov (United States)

    Olivotto, Cristina; Testa, Antonella

    2010-12-01

    We analyze the character of Galileo Galilei (1564-1642), one of the most famous scientists of all time, as portrayed in three significant movies: Luigi Maggi's Galileo Galilei (1909), Liliana Cavani's Galileo (1968), and Joseph Losey's Galileo (1975), the last one of which was based upon Bertolt Brecht's drama, Das Leben des Galilei (1947). We investigate the relationships between the main characteristics of these fictional Galileos and the most important twentieth-century Galilean historiographic models. We also analyze the veracity of the plots of these three movies and the role that historical and scientific consultants played in producing them. We conclude that connections between these three movies and Galilean historiographic models are far from evident, that other factors deeply influenced the representation of Galileo on the screen.

  13. Wavefront reconstruction using computer-generated holograms

    Science.gov (United States)

    Schulze, Christian; Flamm, Daniel; Schmidt, Oliver A.; Duparré, Michael

    2012-02-01

    We propose a new method to determine the wavefront of a laser beam, based on modal decomposition using computer-generated holograms (CGHs). Thereby the beam under test illuminates the CGH with a specific, inscribed transmission function that enables the measurement of modal amplitudes and phases by evaluating the first diffraction order of the hologram. Since we use an angular multiplexing technique, our method is innately capable of real-time measurements of amplitude and phase, yielding the complete information about the optical field. A measurement of the Stokes parameters, respectively of the polarization state, provides the possibility to calculate the Poynting vector. Two wavefront reconstruction possibilities are outlined: reconstruction from the phase for scalar beams and reconstruction from the Poynting vector for inhomogeneously polarized beams. To quantify single aberrations, the reconstructed wavefront is decomposed into Zernike polynomials. Our technique is applied to beams emerging from different kinds of multimode optical fibers, such as step-index, photonic crystal and multicore fibers, whereas in this work results are exemplarily shown for a step-index fiber and compared to a Shack-Hartmann measurement that serves as a reference.

  14. Computer-generated holograms recorded in bacteriorhodopsin

    Science.gov (United States)

    Guessous, Fouad; Juchem, Thorsten; Hampp, Norbert A.

    2004-06-01

    Computer-generated holograms (CGH's) of phase modulation type have been designed and fabricated in the biological material Bacteriorhodopsin (BR). BR is a photochromic retinal protein which may be used in optical data storage and security applications. Using the permanent light-inducible refractive index change of BR, we demonstrate that both analog and digital optical data can be stored in this material in a write-once-read-many (WORM) mode. The calculation and the optimization of the phase function of the CGH's have been accomplished with iterative Fourier transform algorithm methods (IFTA) such as error reduction algorithms. In the fabrication procedure the optimized phase functions of the CGH's have been recorded in BR which was coated onto a glass substrate. A direct laser writing process employing the 532 nm line of a cw-Nd:YAG laser was used for recording the CGH as a modulation of the absorption coefficient as well as of the refractive index. The design and fabrication method of the CGHs with a pixel pitch of 20 μm and a total size of 10 mm x 10 mm are presented.

  15. Movies Go Global

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Partnerships present new opportunities to Chinese films Christian Bale,the winner of the Academy Award for Best Supporting A ctor in 2011,is to star in Chinese movie The 13 Women of Nanjing,directed by Zhang Yimou.Zhang’s latest blockbuster tells the story

  16. Writing a Movie.

    Science.gov (United States)

    Hoffner, Helen

    2003-01-01

    Explains a reading and writing assignment called "Writing a Movie" in which students view a short film segment and write a script in which they describe the scene. Notes that this assignment uses films to develop fluency and helps students understand the reading and writing connections. Concludes that students learn to summarize a scene from film,…

  17. Panda Movie Raises Questions

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Hollywood animated film stirs up debate and introspection over how China should exploit its own culture on the silver screen Hollywood has taken China’s culture, kungfu and the iconic panda, blended them seamlessly and produced a blockbuster animated movie

  18. It's Only a Movie.

    Science.gov (United States)

    McKowen, Clark; Sparke, William

    A montage of thought and comment on motion pictures is presented, from short articles to cartoons, quotes, poems, drawings and pictures. Included are descriptions of how movies are possible, techniques of filming and editing, criticisms, history, the effects of films on the people who watch them, and personalities of the people involved in films.…

  19. Diabetes Movie (For Parents)

    Science.gov (United States)

    ... For Parents > Diabetes Movie Print A A A Kids who have diabetes have trouble taking energy from food and delivering ... to learn more about diabetes. For Teens For Kids For Parents MORE ON THIS TOPIC Diabetes Center Diabetes: Marco's Story (Video) Diabetes: Grace's Story ( ...

  20. Diabetes Movie (For Parents)

    Medline Plus

    Full Text Available ... For Parents > Diabetes Movie Print A A A Kids who have diabetes have trouble taking energy from food and delivering ... to learn more about diabetes. For Teens For Kids For Parents MORE ON THIS TOPIC Diabetes Center Diabetes: Marco's Story (Video) Diabetes: Grace's Story ( ...

  1. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Español Eye Health / Tips & Prevention Sections Are 3-D Movies Bad for Your Eyes? Jul. 09, 2013 ... computer use and your eyes . Children and 3-D Technology Following the lead of Nintendo, several 3- ...

  2. Computer-Controlled Force Generator Project

    Data.gov (United States)

    National Aeronautics and Space Administration — TDA Research, Inc. is developing a compact, low power, Next-Generation Exercise Device (NGRED) that can generate any force between 5 and 600 lbf. We use a closed...

  3. Wire frame to MOVIE. BYU transfer program

    Energy Technology Data Exchange (ETDEWEB)

    Robbins, D.; Byers, L.D.; Benner, M.S.

    1982-12-01

    At SNLA, the primary computer-aided drafting tool is the Applicon Graphics System (AGS). The data base for mechanical parts on the AGS is a wire frame model. This report summarizes a method of adding surface information to the wire frame and passing this information up stream to MOVIE.BYU which is on a VAX computer and is used to produce shaded graphics pictures of the AGS wire frame model on a RAMTEK 9400 display terminal.

  4. Illustrating Language through Computer Generated Animation.

    Science.gov (United States)

    Withrow, Margaret

    1979-01-01

    Originally part of a symposium on educational media for the deaf, the paper discusses the use of animated sequences which illustrate linguistic principles. The work of the Computer Graphics Research Group at Ohio State University is highlighted. It has been discovered that computer-assisted instructional systems enhance learning through greater…

  5. 2nd Generation QUATARA Flight Computer Project

    Science.gov (United States)

    Falker, Jay; Keys, Andrew; Fraticelli, Jose Molina; Capo-Iugo, Pedro; Peeples, Steven

    2015-01-01

    Single core flight computer boards have been designed, developed, and tested (DD&T) to be flown in small satellites for the last few years. In this project, a prototype flight computer will be designed as a distributed multi-core system containing four microprocessors running code in parallel. This flight computer will be capable of performing multiple computationally intensive tasks such as processing digital and/or analog data, controlling actuator systems, managing cameras, operating robotic manipulators and transmitting/receiving from/to a ground station. In addition, this flight computer will be designed to be fault tolerant by creating both a robust physical hardware connection and by using a software voting scheme to determine the processor's performance. This voting scheme will leverage on the work done for the Space Launch System (SLS) flight software. The prototype flight computer will be constructed with Commercial Off-The-Shelf (COTS) components which are estimated to survive for two years in a low-Earth orbit.

  6. Piracy and Movie Revenues

    DEFF Research Database (Denmark)

    Peukert, Christian; Claussen, Jörg; Kretschmer, Tobias

    In this paper we make use of a quasi-experiment in the market for illegal downloading to study movie box office revenues. Exogenous variation comes from the unexpected shutdown of the popular file hosting platform Megaupload.com on January 19, 2012. The estimation strategy is based on a quasi dif...... for the theoretical perspective of (social) network effects where file-sharing acts as a mechanism to spread information about a good from consumers with zero or low willingness to pay to users with high willingness to pay....... difference-in-differences approach. We compare box office revenues before and after the shutdown to a matched control group of movies unaffected by the shutdown. We find that the shutdown had a negative, yet insignificant effect on box office revenues.This counterintuitive result may suggest support...

  7. Acoustic cavitation movies

    Science.gov (United States)

    Crum, Lawrence A.

    2003-04-01

    Acoustic cavitation is a phenomenon that occurs on microsecond time scales and micron length scales, yet, it has many macroscopic manifestations. Accordingly, it is often difficult, at least for the author, to form realistic physical descriptions of the specific mechanisms through which it expresses itself in our macroscopic world. For example, there are still many who believe that cavitation erosion is due to the shock wave that is emitted by bubble implosion, rather than the liquid jet created on asymmetric collapse...and they may be right. Over the years, the author has accumulated a number of movies and high-speed photographs of cavitation activity, which he uses to form his own visual references. In the time allotted, he will show a number of these movies and photographs and discuss their relevance to existing technological problems. A limited number of CDs containing the presented materials will be available to interested individuals. [Work supported in part by the NIH, USAMRMC, and the ONR.

  8. August: Road Movies

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Eldorado France, 2008 85' Road movie Directed by: Bouly Lanners Cast: Bouly Lanners, Fabrice Adde Philippe Nahon Yvan is an auto salesman who makes a good living dealing in American luxury cars. One evening, Yvan comes home to discover a burglar has made his way into his home, and a quick search reveals the criminal, Elie is hiding under his bed, and when the thief finally emerges he turns out to be a junkie who is feeling the first stages of withdrawal.

  9. Ships and movies

    DEFF Research Database (Denmark)

    Andersen, Peter Bøgh

    2003-01-01

     Movie directors and designers of displays for process control have one thing in common: they must display the inner state of a complex system in an understandable way to a group of spectators/operators that do not have direct access to the interior of the system. The paper redefines the three...... basic filmic units, cut, scene and sequence, and presents five topics from film theory that may give inspiration to the interface designer. The examples are taken from maritime instrumentation....

  10. Personal_Movie - A Geolocated Movie Recommendation System For Events

    Directory of Open Access Journals (Sweden)

    CAZELLA, S. C.

    2012-12-01

    Full Text Available Considering how hard it is to provide more assertive and personalized information, products and service for people/tourists who are searching for a service, such as: having lunch/dinner, searching what's hot about films in theaters right now in the "Olympic villa", for instance. In order to fill this gap this paper describes a Recommendation System (RS that applies contextual information and people' personality as recommender inputs in order to predict more personalized films for Cinemark's clients (Personal_Movie. In order to illustrate our discussion we present an experiment that uses a software for mobile that uses geo-location and people's personality to further improve the quality of the film recommendation. The experiment has shown promising results and its potential in the generation of more assertive recommendation. We believe the results might by asl applicable for other products and services requested in Brazilian mega events

  11. Cohesion in Computer Text Generation: Lexical Substitution.

    Science.gov (United States)

    1983-05-01

    substitutions. Paul is able to generate a cohesive text which exhibits the binding of sentences through presupposition dependencies, the marking of old...lexical substitutions, Paul is able to generate a cohesive text - • which exhibits the binding of sentences through presupposition dependencies, the...problem in using these cohesive devices is that it is necessary to guarantee that they are understandable. That is, since these items refer anaphorically

  12. Computer generation and manipulation of sounds

    DEFF Research Database (Denmark)

    Serafin, Stefania

    2007-01-01

    Musicians are always quick to adopt and explore new technologies. The fast-paced changes wrought by electrification, from the microphone via the analogue synthesiser to the laptop computer, have led to a wide diversity of new musical styles and techniques. Electronic music has grown to a broad fi...

  13. Computer generation and manipulation of sounds

    DEFF Research Database (Denmark)

    Serafin, Stefania

    2007-01-01

    Musicians are always quick to adopt and explore new technologies. The fast-paced changes wrought by electrification, from the microphone via the analogue synthesiser to the laptop computer, have led to a wide diversity of new musical styles and techniques. Electronic music has grown to a broad fi...

  14. Generating computational models for serious gaming

    NARCIS (Netherlands)

    Westera, Wim

    2014-01-01

    Many serious games include computational models that simulate dynamic systems. These models promote enhanced interaction and responsiveness. Under the social web paradigm more and more usable game authoring tools become available that enable prosumers to create their own games, but the inclusion of

  15. DNA Movies and Panspermia

    OpenAIRE

    2011-01-01

    There are several ways that our species might try to send a message to another species separated from us by space and/or time. Synthetic biology might be used to write an epitaph to our species, or simply “Kilroy was here”, in the genome of a bacterium via the patterns of either (1) the codons to exploit Life's non-equilibrium character or (2) the bases themselves to exploit Life's quasi-equilibrium character. We suggest here how DNA movies might be designed using such patterns. We ...

  16. Ships and movies

    DEFF Research Database (Denmark)

    Andersen, Peter Bøgh

    2003-01-01

     Movie directors and designers of displays for process control have one thing in common: they must display the inner state of a complex system in an understandable way to a group of spectators/operators that do not have direct access to the interior of the system. The paper redefines the three ba...... basic filmic units, cut, scene and sequence, and presents five topics from film theory that may give inspiration to the interface designer. The examples are taken from maritime instrumentation....

  17. Movie smoking, movie horror, and urge to smoke.

    Science.gov (United States)

    Sargent, James D; Maruska, Karin; Morgenstern, Matthis; Isensee, Barbara; Hanewinkel, Reiner

    2009-01-01

    It is known that exposure to smoking cues increases urge to smoke (UTS), but little is known about other media factors that might also increase UTS. We hypothesized that horror/ thriller movies might also increase UTS by increasing negative affect. We surveyed 536 movie patrons who were smokers aged 18 years or older. Subjects had exited 26 movies, of which 12 contained smoking and two were horrorfilms, one with and one without smoking. We used random effects regression to assess the association between exposure to movie smoking, movie horror, both and UTS, controlling for confounding factors. Median age was 26 years and 52% were female. Mean UTS was 5.9, 6.6, 6.6, and 8.7 for smokers exiting movies without smoking, with smoking, horror without smoking and horror with smoking respectively. Smoking in movies was associated with a significantly higher UTS (0.63 [95% CI 0.31-0.94]). Horror with smoking increased UTS by 2.8 points (95% C.I. 2.3, 3.5); the horror without smoking estimate was 0.88, but not statistically significant. This short report offers preliminary evidence that movie horror as one factor besides visual smoking cues that could increase UTS in a community setting.

  18. ADGEN: ADjoint GENerator for computer models

    Energy Technology Data Exchange (ETDEWEB)

    Worley, B.A.; Pin, F.G.; Horwedel, J.E.; Oblow, E.M.

    1989-05-01

    This paper presents the development of a FORTRAN compiler and an associated supporting software library called ADGEN. ADGEN reads FORTRAN models as input and produces and enhanced version of the input model. The enhanced version reproduces the original model calculations but also has the capability to calculate derivatives of model results of interest with respect to any and all of the model data and input parameters. The method for calculating the derivatives and sensitivities is the adjoint method. Partial derivatives are calculated analytically using computer calculus and saved as elements of an adjoint matrix on direct assess storage. The total derivatives are calculated by solving an appropriate adjoint equation. ADGEN is applied to a major computer model of interest to the Low-Level Waste Community, the PRESTO-II model. PRESTO-II sample problem results reveal that ADGEN correctly calculates derivatives of response of interest with respect to 300 parameters. The execution time to create the adjoint matrix is a factor of 45 times the execution time of the reference sample problem. Once this matrix is determined, the derivatives with respect to 3000 parameters are calculated in a factor of 6.8 that of the reference model for each response of interest. For a single 3000 for determining these derivatives by parameter perturbations. The automation of the implementation of the adjoint technique for calculating derivatives and sensitivities eliminates the costly and manpower-intensive task of direct hand-implementation by reprogramming and thus makes the powerful adjoint technique more amenable for use in sensitivity analysis of existing models. 20 refs., 1 fig., 5 tabs.

  19. Movies: the Audience Favorites

    Directory of Open Access Journals (Sweden)

    Alexander Fedorov

    2016-10-01

    Full Text Available Modern screen art over its success to the use of folklore, myth, synthesis of the natural and supernatural, and a consistent orientation toward the most popular plot schemes. Their metaphorical appeal is not to the rational but to the emotional, through identification with the magic power of heroes and standardization of ideas, situations, characters and so on in compensation for dreams not realized in life, there are illusions – happy endings. In movies, TV shows, and music videos' rhythmic organization, viewers' feelings are influenced as much by the order of changing shots as by the content of productions. On the basis of the foregoing, it can be concluded that the media texts of popular culture obliged to a variety of factors for its success. These include: reliance on folklore and mythological sources, constancy metaphors, focus on consistent implementation of the most persistent plot schemes, the synthesis of the natural and the supernatural, the appeal not to rational and emotional, through the identification of (imaginary transformation in of active characters merge with the atmosphere, the aura of works, “magic power” of heroes, standardization (replication, unification, adaptation ideas, situations, characters, etc., mosaic, seriality, the compensation (of the cherished illusion, but not come true desires, the happy ending, the use of such rhythmic organization movies, TV shows, clips, where the feeling of the audience with the content of the frame affects the order of their shift; intuitive guessing subconscious audience interests, etc.

  20. Computer-Generated Phase Diagrams for Binary Mixtures.

    Science.gov (United States)

    Jolls, Kenneth R.; And Others

    1983-01-01

    Computer programs that generate projections of thermodynamic phase surfaces through computer graphics were used to produce diagrams representing properties of water and steam and the pressure-volume-temperature behavior of most of the common equations of state. The program, program options emphasizing thermodynamic features of interest, and…

  1. Fast computation of computer-generated hologram using Xeon Phi coprocessor

    CERN Document Server

    Murano, Koki; Sugiyama, Atsushi; Takada, Naoki; Kakue, Takashi; Oikawa, Minoru; Ito, Tomoyoshi

    2013-01-01

    We report fast computation of computer-generated holograms (CGHs) using Xeon Phi coprocessors, which have massively x86-based processors on one chip, recently released by Intel. CGHs can generate arbitrary light wavefronts, and therefore, are promising technology for many applications: for example, three-dimensional displays, diffractive optical elements, and the generation of arbitrary beams. CGHs incur enormous computational cost. In this paper, we describe the implementations of several CGH generating algorithms on the Xeon Phi, and the comparisons in terms of the performance and the ease of programming between the Xeon Phi, a CPU and graphics processing unit (GPU).

  2. Automated Generation of User Guidance by Combining Computation and Deduction

    CERN Document Server

    Neuper, Walther

    2012-01-01

    Herewith, a fairly old concept is published for the first time and named "Lucas Interpretation". This has been implemented in a prototype, which has been proved useful in educational practice and has gained academic relevance with an emerging generation of educational mathematics assistants (EMA) based on Computer Theorem Proving (CTP). Automated Theorem Proving (ATP), i.e. deduction, is the most reliable technology used to check user input. However ATP is inherently weak in automatically generating solutions for arbitrary problems in applied mathematics. This weakness is crucial for EMAs: when ATP checks user input as incorrect and the learner gets stuck then the system should be able to suggest possible next steps. The key idea of Lucas Interpretation is to compute the steps of a calculation following a program written in a novel CTP-based programming language, i.e. computation provides the next steps. User guidance is generated by combining deduction and computation: the latter is performed by a specific l...

  3. A computational model of cardiovascular physiology and heart sound generation.

    Science.gov (United States)

    Watrous, Raymond L

    2009-01-01

    A computational model of the cardiovascular system is described which provides a framework for implementing and testing quantitative physiological models of heart sound generation. The lumped-parameter cardiovascular model can be solved for the hemodynamic variables on which the heart sound generation process is built. Parameters of the cardiovascular model can be adjusted to represent various normal and pathological conditions, and the acoustic consequences of those adjustments can be explored. The combined model of the physiology of cardiovascular circulation and heart sound generation has promise for application in teaching, training and algorithm development in computer-aided auscultation of the heart.

  4. Assessing computer waste generation in Chile using material flow analysis.

    Science.gov (United States)

    Steubing, Bernhard; Böni, Heinz; Schluep, Mathias; Silva, Uca; Ludwig, Christian

    2010-03-01

    The quantities of e-waste are expected to increase sharply in Chile. The purpose of this paper is to provide a quantitative data basis on generated e-waste quantities. A material flow analysis was carried out assessing the generation of e-waste from computer equipment (desktop and laptop PCs as well as CRT and LCD-monitors). Import and sales data were collected from the Chilean Customs database as well as from publications by the International Data Corporation. A survey was conducted to determine consumers' choices with respect to storage, re-use and disposal of computer equipment. The generation of e-waste was assessed in a baseline as well as upper and lower scenarios until 2020. The results for the baseline scenario show that about 10,000 and 20,000 tons of computer waste may be generated in the years 2010 and 2020, respectively. The cumulative e-waste generation will be four to five times higher in the upcoming decade (2010-2019) than during the current decade (2000-2009). By 2020, the shares of LCD-monitors and laptops will increase more rapidly replacing other e-waste including the CRT-monitors. The model also shows the principal flows of computer equipment from production and sale to recycling and disposal. The re-use of computer equipment plays an important role in Chile. An appropriate recycling scheme will have to be introduced to provide adequate solutions for the growing rate of e-waste generation.

  5. DNA movies and panspermia.

    Science.gov (United States)

    Norris, Victor; Grondin, Yohann

    2011-10-20

    There are several ways that our species might try to send a message to another species separated from us by space and/or time. Synthetic biology might be used to write an epitaph to our species, or simply "Kilroy was here", in the genome of a bacterium via the patterns of either (1) the codons to exploit Life's non-equilibrium character or (2) the bases themselves to exploit Life's quasi-equilibrium character. We suggest here how DNA movies might be designed using such patterns. We also suggest that a search for mechanisms to create and preserve such patterns might lead to a better understanding of modern cells. Finally, we argue that the cutting-edge microbiology and synthetic biology needed for the Kilroy project would put origin-of-life studies in the vanguard of research.

  6. DNA Movies and Panspermia

    Directory of Open Access Journals (Sweden)

    Victor Norris

    2011-10-01

    Full Text Available There are several ways that our species might try to send a message to another species separated from us by space and/or time. Synthetic biology might be used to write an epitaph to our species, or simply “Kilroy was here”, in the genome of a bacterium via the patterns of either (1 the codons to exploit Life's non-equilibrium character or (2 the bases themselves to exploit Life's quasi-equilibrium character. We suggest here how DNA movies might be designed using such patterns. We also suggest that a search for mechanisms to create and preserve such patterns might lead to a better understanding of modern cells. Finally, we argue that the cutting-edge microbiology and synthetic biology needed for the Kilroy project would put origin-of-life studies in the vanguard of research.

  7. Computer Controlled High Precise,High Voltage Pules Generator

    Institute of Scientific and Technical Information of China (English)

    但果; 邹积岩; 丛吉远; 董恩源

    2003-01-01

    High precise, high voltage pulse generator made up of high-power IGBT and pulse transformers controlled by a computer are described. A simple main circuit topology employed in this pulse generator can reduce the cost meanwhile it still meets special requirements for pulsed electric fields (PEFs) in food process. The pulse generator utilizes a complex programmable logic device (CPLD) to generate trigger signals. Pulse-frequency, pulse-width and pulse-number are controlled via RS232 bus by a computer. The high voltage pulse generator well suits to the application for fluid food non-thermal effect in pulsed electric fields, for it can increase and decrease by the step length 1.

  8. New challenges in grid generation and adaptivity for scientific computing

    CERN Document Server

    Formaggia, Luca

    2015-01-01

    This volume collects selected contributions from the “Fourth Tetrahedron Workshop on Grid Generation for Numerical Computations”, which was held in Verbania, Italy in July 2013. The previous editions of this Workshop were hosted by the Weierstrass Institute in Berlin (2005), by INRIA Rocquencourt in Paris (2007), and by Swansea University (2010). This book covers different, though related, aspects of the field: the generation of quality grids for complex three-dimensional geometries; parallel mesh generation algorithms; mesh adaptation, including both theoretical and implementation aspects; grid generation and adaptation on surfaces – all with an interesting mix of numerical analysis, computer science and strongly application-oriented problems.

  9. Pseudo-random number generator for the Sigma 5 computer

    Science.gov (United States)

    Carroll, S. N.

    1983-01-01

    A technique is presented for developing a pseudo-random number generator based on the linear congruential form. The two numbers used for the generator are a prime number and a corresponding primitive root, where the prime is the largest prime number that can be accurately represented on a particular computer. The primitive root is selected by applying Marsaglia's lattice test. The technique presented was applied to write a random number program for the Sigma 5 computer. The new program, named S:RANDOM1, is judged to be superior to the older program named S:RANDOM. For applications requiring several independent random number generators, a table is included showing several acceptable primitive roots. The technique and programs described can be applied to any computer having word length different from that of the Sigma 5.

  10. A Fuzzy Color-Based Approach for Understanding Animated Movies Content in the Indexing Task

    Directory of Open Access Journals (Sweden)

    Vasile Buzuloiu

    2008-04-01

    Full Text Available This paper proposes a method for detecting and analyzing the color techniques used in the animated movies. Each animated movie uses a specific color palette which makes its color distribution one major feature in analyzing the movie content. The color palette is specially tuned by the author in order to convey certain feelings or to express artistic concepts. Deriving semantic or symbolic information from the color concepts or the visual impression induced by the movie should be an ideal way of accessing its content in a content-based retrieval system. The proposed approach is carried out in two steps. The first processing step is the low-level analysis. The movie color content gets represented with several global statistical parameters computed from the movie global weighted color histogram. The second step is the symbolic representation of the movie content. The numerical parameters obtained from the first step are converted into meaningful linguistic concepts through a fuzzy system. They concern mainly the predominant hues of the movie, some of Itten’s color contrasts and harmony schemes, color relationships and color richness. We use the proposed linguistic concepts to link to given animated movies according to their color techniques. In order to make the retrieval task easier, we also propose to represent color properties in a graphical manner which is similar to the color gamut representation. Several tests have been conducted on an animated movie database.

  11. A Fuzzy Color-Based Approach for Understanding Animated Movies Content in the Indexing Task

    Directory of Open Access Journals (Sweden)

    Buzuloiu Vasile

    2008-01-01

    Full Text Available Abstract This paper proposes a method for detecting and analyzing the color techniques used in the animated movies. Each animated movie uses a specific color palette which makes its color distribution one major feature in analyzing the movie content. The color palette is specially tuned by the author in order to convey certain feelings or to express artistic concepts. Deriving semantic or symbolic information from the color concepts or the visual impression induced by the movie should be an ideal way of accessing its content in a content-based retrieval system. The proposed approach is carried out in two steps. The first processing step is the low-level analysis. The movie color content gets represented with several global statistical parameters computed from the movie global weighted color histogram. The second step is the symbolic representation of the movie content. The numerical parameters obtained from the first step are converted into meaningful linguistic concepts through a fuzzy system. They concern mainly the predominant hues of the movie, some of Itten's color contrasts and harmony schemes, color relationships and color richness. We use the proposed linguistic concepts to link to given animated movies according to their color techniques. In order to make the retrieval task easier, we also propose to represent color properties in a graphical manner which is similar to the color gamut representation. Several tests have been conducted on an animated movie database.

  12. Automated Generation of User Guidance by Combining Computation and Deduction

    Directory of Open Access Journals (Sweden)

    Walther Neuper

    2012-02-01

    Full Text Available Herewith, a fairly old concept is published for the first time and named "Lucas Interpretation". This has been implemented in a prototype, which has been proved useful in educational practice and has gained academic relevance with an emerging generation of educational mathematics assistants (EMA based on Computer Theorem Proving (CTP. Automated Theorem Proving (ATP, i.e. deduction, is the most reliable technology used to check user input. However ATP is inherently weak in automatically generating solutions for arbitrary problems in applied mathematics. This weakness is crucial for EMAs: when ATP checks user input as incorrect and the learner gets stuck then the system should be able to suggest possible next steps. The key idea of Lucas Interpretation is to compute the steps of a calculation following a program written in a novel CTP-based programming language, i.e. computation provides the next steps. User guidance is generated by combining deduction and computation: the latter is performed by a specific language interpreter, which works like a debugger and hands over control to the learner at breakpoints, i.e. tactics generating the steps of calculation. The interpreter also builds up logical contexts providing ATP with the data required for checking user input, thus combining computation and deduction. The paper describes the concepts underlying Lucas Interpretation so that open questions can adequately be addressed, and prerequisites for further work are provided.

  13. Computer generation of structural models of amorphous Si and Ge

    Science.gov (United States)

    Wooten, F.; Winer, K.; Weaire, D.

    1985-04-01

    We have developed and applied a computer algorithm that generates realistic random-network models of a-Si with periodic boundary conditions. These are the first models to have correlation functions that show no serious deiscrepancy with experiment. The algorithm provides a much-needed systematic approach to model construction that can be used to generate models of a large class of amorphous materials.

  14. A Qualitative Study on the Emotional Healing Efficacy of Movies for Undergraduates Suffering Breakups

    Directory of Open Access Journals (Sweden)

    Chen Su-may Sheih

    2016-12-01

    Full Text Available Breakups with significant others are among the main reasons for emotional disturbance problems in Taiwanese undergraduates. Most undergraduates lack emotional regulation; therefore, their negative emotions can easily accumulate, influencing their mental health. Exacerbating these effects, the accumulation of negative emotions can lead to social problems. Therefore, helping undergraduates appropriately cope with negative emotions generated by breakups is a topic worth exploring. Movie therapy involves watching appropriate movies for soothing negative emotions. To investigate the emotional healing efficacy of movies, this study employed content analysis to select movies about breakups and recruited 14 undergraduates suffering from breakups. Semi-structured in-depth interviews were conducted after the subjects viewed one of the movies, and the emotional healing efficacy of movies was analyzed based on whether the subjects experienced the processes of identification, catharsis, and insight. The findings indicated that 14 movies had emotional healing efficacy. The subjects experienced emotional healing from movies that contained three critical elements: similarity of backgrounds between the viewer and the movie characters, the extroversive expression of the movie characters’ emotions, and the characters’ demonstration of concrete solutions to the problems. [Article content in Chinese

  15. Computer generation of robot dynamics equations and the related issues

    Energy Technology Data Exchange (ETDEWEB)

    Leu, M.C.; Koplik, J.

    1986-01-01

    Two programs have been developed using the computer algebra system REDUCE to generate the dynamics equations of motion for robot manipulators. One of these programs is based on a Lagrange formulation and the other utilizes a recursive Newton-Euler formulation. Both programs produce equivalent scalar symbolic expressions for the generalized actuator forces, but the program based on the recursive Newton-Euler formulation is more efficient for the generation of equations. These programs have been used to generate the dynamics equations of manipulators with as many as six degrees of freedom. 16 references.

  16. Computer Generated Optical Illusions: A Teaching and Research Tool.

    Science.gov (United States)

    Bailey, Bruce; Harman, Wade

    Interactive computer-generated simulations that highlight psychological principles were investigated in this study in which 33 female and 19 male undergraduate college student volunteers of median age 21 matched line and circle sizes in six variations of Ponzo's illusion. Prior to working with the illusions, data were collected based on subjects'…

  17. Advanced Computer Image Generation Techniques Exploiting Perceptual Characteristics. Final Report.

    Science.gov (United States)

    Stenger, Anthony J.; And Others

    This study suggests and identifies computer image generation (CIG) algorithms for visual simulation that improve the training effectiveness of CIG simulators and identifies areas of basic research in visual perception that are significant for improving CIG technology. The first phase of the project entailed observing three existing CIG simulators.…

  18. An Empirical Generative Framework for Computational Modeling of Language Acquisition

    Science.gov (United States)

    Waterfall, Heidi R.; Sandbank, Ben; Onnis, Luca; Edelman, Shimon

    2010-01-01

    This paper reports progress in developing a computer model of language acquisition in the form of (1) a generative grammar that is (2) algorithmically learnable from realistic corpus data, (3) viable in its large-scale quantitative performance and (4) psychologically real. First, we describe new algorithmic methods for unsupervised learning of…

  19. Development of unstructured mesh generator on parallel computers

    Energy Technology Data Exchange (ETDEWEB)

    Muramatsu, Kazuhiro [Japan Atomic Energy Research Inst., Tokyo (Japan); Shimada, Akio; Murakami, Hiroyuki; Higashida, Akihiro; Wakatsuki, Shigeto [Fuji Research Institute Corporation, Computational Engineering II, Tokyo (Japan)

    2000-09-01

    A general-purpose unstructured mesh generator, 'GRID3D/UNST', has been developed on parallel computers. High-speed operations and large-scale memory capacity of parallel computers enable the system to generate a large-scale mesh at high speed. As a matter of fact, the system generates large-scale mesh composed of 2,400,000 nodes and 14,000,000 elements about 1.5 hours on HITACHI SR2201, 64 PEs (Processing Elements) through 2.5 hours pre-process on SUN. Also the system is built on standard FORTRAN, C and Motif, and therefore has high portability. The system enables us to solve a large-scale problem that has been impossible to be solved, and to break new ground in the field of science and engineering. (author)

  20. The Next Generation ARC Middleware and ATLAS Computing Model

    CERN Document Server

    Filipcic, A; The ATLAS collaboration; Smirnova, O; Konstantinov, A; Karpenko, D

    2012-01-01

    The distributed NDGF Tier-1 and associated Nordugrid clusters are well integrated into the ATLAS computing model but follow a slightly different paradigm than other ATLAS resources. The current strategy does not divide the sites as in the commonly used hierarchical model, but rather treats them as a single storage endpoint and a pool of distributed computing nodes. The next generation ARC middleware with its several new technologies provides new possibilities in development of the ATLAS computing model, such as pilot jobs with pre-cached input files, automatic job migration between the sites, integration of remote sites without connected storage elements, and automatic brokering for jobs with non-standard resource requirements. ARC's data transfer model provides an automatic way for the computing sites to participate in ATLAS' global task management system without requiring centralised brokering or data transfer services. The powerful API combined with Python and Java bindings can easily be used to build new ...

  1. Efficient computation of clipped Voronoi diagram for mesh generation

    KAUST Repository

    Yan, Dongming

    2013-04-01

    The Voronoi diagram is a fundamental geometric structure widely used in various fields, especially in computer graphics and geometry computing. For a set of points in a compact domain (i.e. a bounded and closed 2D region or a 3D volume), some Voronoi cells of their Voronoi diagram are infinite or partially outside of the domain, but in practice only the parts of the cells inside the domain are needed, as when computing the centroidal Voronoi tessellation. Such a Voronoi diagram confined to a compact domain is called a clipped Voronoi diagram. We present an efficient algorithm to compute the clipped Voronoi diagram for a set of sites with respect to a compact 2D region or a 3D volume. We also apply the proposed method to optimal mesh generation based on the centroidal Voronoi tessellation. Crown Copyright © 2011 Published by Elsevier Ltd. All rights reserved.

  2. DISTRIBUTED GENERATION OF COMPUTER MUSIC IN THE INTERNET OF THINGS

    Directory of Open Access Journals (Sweden)

    G. G. Rogozinsky

    2015-07-01

    Full Text Available Problem Statement. The paper deals with distributed intelligent multi-agent system for computer music generation. A mathematical model for data extraction from the environment and their application in the music generation process is proposed. Methods. We use Resource Description Framework for representation of timbre data. A special musical programming language Csound is used for subsystem of synthesis and sound processing. Sound generation occurs according to the parameters of compositional model, getting data from the outworld. Results. We propose architecture of a potential distributed system for computer music generation. An example of core sound synthesis is presented. We also propose a method for mapping real world parameters to the plane of compositional model, in an attempt to imitate elements and aspects of creative inspiration. Music generation system has been represented as an artifact in the Central Museum of Communication n.a. A.S. Popov in the framework of «Night of Museums» action. In the course of public experiment it was stated that, in the whole, the system tends to a quick settling of neutral state with no musical events generation. This proves the necessity of algorithms design for active condition support of agents’ network, in the whole. Practical Relevance. Realization of the proposed system will give the possibility for creation of a technological platform for a whole new class of applications, including augmented acoustic reality and algorithmic composition.

  3. Computer generated holography with intensity-graded patterns

    Directory of Open Access Journals (Sweden)

    Rossella Conti

    2016-10-01

    Full Text Available Computer Generated Holography achieves patterned illumination at the sample plane through phase modulation of the laser beam at the objective back aperture. This is obtained by using liquid crystal-based spatial light modulators (LC-SLMs, which modulate the spatial phase of the incident laser beam. A variety of algorithms are employed to calculate the phase modulation masks addressed to the LC-SLM. These algorithms range from simple gratings-and-lenses to generate multiple diffraction-limited spots, to iterative Fourier-transform algorithms capable of generating arbitrary illumination shapes perfectly tailored on the base of the target contour. Applications for holographic light patterning include multi-trap optical tweezers, patterned voltage imaging and optical control of neuronal excitation using uncaging or optogenetics. These past implementations of computer generated holography used binary input profile to generate binary light distribution at the sample plane. Here we demonstrate that using graded input sources, enables generating intensity graded light patterns and extend the range of application of holographic light illumination. At first, we use intensity-graded holograms to compensate for LC-SLM position dependent diffraction efficiency or sample fluorescence inhomogeneity. Finally we show that intensity-graded holography can be used to equalize photo evoked currents from cells expressing different level of chanelrhodopsin2 (ChR2, one of the most commonly used optogenetics light gated channels, taking into account the non-linear dependence of channel opening on incident light.

  4. Towards a next generation of scientific computing in the Cloud

    Directory of Open Access Journals (Sweden)

    Yassine Tabaa

    2012-11-01

    Full Text Available More than ever, designing new types of highly scalable data intensive computing is needed to qualify the new generation of scientific computing and analytics effectively perform complex tasks on massive amounts of data such as clustering, matrix computation, data mining, information extraction, etc. MapReduce, put forward by Google, is a well-known model for programming commodity computer clusters to perform large-scale data processing in a single pass. Hadoop is the most popular open-source implementation of the MapReduce model which provides a simple abstraction for large-scale distributed algorithm; it has become a popular distributed computing and data analysis paradigm in recent years. While, Hadoop MapReduce suits well for embarrassingly parallel problems, it suffers significant troubles when dealing with iterative algorithms; as a consequence, many alternative frameworks that support this class of algorithms were created. In this paper, we propose architecture for such configuration implemented in an SPC (Scientific Private Cloud prototype, using the Hadoop 2.0 next generation platform to allow the use of alternative programming frameworks respecting a hybrid approach, while retaining the scalability and fault tolerance of Hadoop MapReduce. By adapting scientific problems to execute them in our Scientific Cloud, experiments conducted show the effectiveness of the proposed model and its impact on the ease of frameworks handling.

  5. Cloning goes to the movies.

    Science.gov (United States)

    Cormick, Craig

    2006-10-01

    Public attitude research conducted by Biotechnology Australia shows that one of the major sources of information on human reproductive cloning is movies. Traditionally, understanding of new and emerging technologies has come through the mass media but human cloning, being so widely addressed through the popular culture of movies, is more effectively defined by Hollywood than the news media or science media. But how well are the science and social issues of cloning portrayed in box office hits such as The Island, Multiplicity, Star Wars: Attack of the Clones and Jurassic Park? These movies have enormous reach and undoubted influence, and are therefore worth analyzing in some detail. This study looks at 33 movies made between 1971 and 2005 that address human reproductive cloning, and it categorizes the films based on their genre and potential influence. Yet rather than simply rating the quality of the science portrayed, the study compares the key messages in these movies with public attitudes towards cloning, to examine the correlations.

  6. Using Science Fiction Movies in Introductory Physics

    Science.gov (United States)

    Dark, Marta L.

    2005-10-01

    This paper discusses the use of science fiction movies in introductory physics courses at Spelman College. There are several reasons to use these movies in the classroom environment. Movies are a visual learning aid. Introductory physics students show a strong interest in participating in movie-related activities compared to standard group problem-solving sessions. Finally, these activities encourage creative thinking and can be used to develop writing skills. The students involved with these movie-based activities have included biology and pre-medical majors taking general physics. In the introductory level courses, physics, chemistry, and engineering majors worked on movie-based activities.

  7. Robust video watermarking scheme using computer generated holographic technique

    Science.gov (United States)

    Li, Jianzhong

    2013-06-01

    A novel blind video watermarking scheme offering a low computational complexity is presented in which the computer generated holograms are used as the watermarks. In the scheme, the original video is divided into nonoverlapping groups of pictures (GOPs). A quantization method is used to insert the mark hologram into the low frequency wavelet coefficients of every GOP. The extraction procedure does not need the original video. Experimental results demonstrate that the presented scheme is transparent and robust to a variety of attacks, including compression, noise addition, filtering, occlusion, cropping and temporal attacks, etc. One of the most important advantages of the suggested method is its simplicity and practicality.

  8. Exposure to Movie Reckless Driving in Early Adolescence Predicts Reckless, but Not Inattentive Driving.

    Directory of Open Access Journals (Sweden)

    Evelien Kostermans

    Full Text Available We examine the association between exposure to depictions of reckless driving in movies and unsafe driving, modeling inattentive and reckless driving as separate outcomes.Data were obtained by telephone from 1,630 US adolescents aged 10 to 14 years at baseline who were drivers at a survey 6 years later. Exposure to movie reckless driving was measured based on movies seen from a randomly selected list of 50 movie titles that had been content coded for reckless driving among characters. Associations were tested with inattentive and reckless driving behaviors in the subsequent survey-controlling for baseline age, sex, socioeconomic status, parental education, school performance, extracurricular activities, daily television and video/computer game exposure, number of movies watched per week, self-regulation and sensation seeking.Exposure to movie reckless driving was common, with approximately 10% of movie characters having driven recklessly. Confirmatory factor analysis revealed a significant distinction between items tapping reckless and inattentive driving at the 6th wave. Age and exposure to movie reckless driving at baseline were directly associated with wave-6 reckless (but not inattentive driving. Additionally, growth in sensation seeking mediated a prospective relation between the total number of movies watched per week at baseline and reckless driving, independent of exposure to movie reckless driving. Males and high sensation seekers reported lower seatbelt usage and more reckless driving, whereas lower self-regulation predicted inattentive driving.In this study, exposure to movie reckless driving during early adolescence predicted adolescents' reckless driving, suggesting a direct modeling effect. Other aspects of movies were also associated with reckless driving, with that association mediated through growth in sensation seeking. Predictors of reckless driving were different from predictors of inattentive driving, with lower self

  9. Computer controlled MHD power consolidation and pulse-generation system

    Science.gov (United States)

    Johnson, R.

    The major goal of this project is to establish the feasibility of a power conversion technology which will permit the direct synthesis of computer programmable pulse power. Feasibility will be established in this project by demonstration of direct synthesis of commercial frequency power by means of computer control. The power input to the conversion system is assumed to be a magnetohydrodynamic (MHD) Faraday connected generator which may be viewed as a multi-terminal d.c. source. This consolidation/inversion process is referred to subsequently as Pulse-Amplitude-Synthesis-and-Control (PASC). A secondary goal is to deliver a controller subsystem consisting of a computer, software, and computer interface board which can serve as one of the building blocks for a possible Phase 2 prototype system. This report covers the initial six months portion of the project and includes discussions on the following areas: (1) selection of a control computer with software tool kit for development of the PASC controller contract requirement; (2) problem formulation considerations for simulation of the PASC technique on digital computers; (3) initial simulation results for the PASC transformer, including simulation results obtained using SPICE and the INTEG program; (4) a survey of available gate-turn-off (GTO's), power semiconductors, power field effect transistors (PFET's), and fiber optics signal cabling and transducers.

  10. Voyager 1 Red Spot Movie

    Science.gov (United States)

    2000-01-01

    This movie shows the portion of Jupiter around the Great Red Spot as it swirls through more than 60 Jupiter days. Notice the difference in speed and direction of the various zones of the atmosphere. The interaction of the atmospheric clouds and storm shows how dynamic the Jovian atmosphere is.As Voyager 1 approached Jupiter in 1979, it took images of the planet at regular intervals. This sequence is made from 66 images taken once every Jupiter rotation period (about 10 hours). This time-lapse movie uses images taken every time Jupiter longitude 68W passed under the spacecraft. These images were acquired in the Blue filter from Jan. 6 to Feb. 3 1979. The spacecraft flew from 58 million kilometers to 31 million kilometers from Jupiter during that time.This time-lapse movie was produced at JPL by the Image Processing Laboratory in 1979.

  11. Future trends in computer waste generation in India.

    Science.gov (United States)

    Dwivedy, Maheshwar; Mittal, R K

    2010-11-01

    The objective of this paper is to estimate the future projection of computer waste in India and to subsequently analyze their flow at the end of their useful phase. For this purpose, the study utilizes the logistic model-based approach proposed by Yang and Williams to forecast future trends in computer waste. The model estimates future projection of computer penetration rate utilizing their first lifespan distribution and historical sales data. A bounding analysis on the future carrying capacity was simulated using the three parameter logistic curve. The observed obsolete generation quantities from the extrapolated penetration rates are then used to model the disposal phase. The results of the bounding analysis indicate that in the year 2020, around 41-152 million units of computers will become obsolete. The obsolete computer generation quantities are then used to estimate the End-of-Life outflows by utilizing a time-series multiple lifespan model. Even a conservative estimate of the future recycling capacity of PCs will reach upwards of 30 million units during 2025. Apparently, more than 150 million units could be potentially recycled in the upper bound case. However, considering significant future investment in the e-waste recycling sector from all stakeholders in India, we propose a logistic growth in the recycling rate and estimate the requirement of recycling capacity between 60 and 400 million units for the lower and upper bound case during 2025. Finally, we compare the future obsolete PC generation amount of the US and India. Copyright © 2010 Elsevier Ltd. All rights reserved.

  12. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Español Eye Health / Tips & Prevention Sections Are 3-D Movies Bad for Your Eyes? Leer en Español: ¿ ... computer use and your eyes . Children and 3-D Technology Following the lead of Nintendo, several 3- ...

  13. Tips from the Classroom: Introducing the Friendly and Useful Computer; Using Annotations to Identify Composition Errors; Building a Scaffold with Video Clips; Movie Karaoke; Gotcha.

    Science.gov (United States)

    Dudley, Albert P.; And Others

    1997-01-01

    Presents various tips that are useful in the classroom for teaching second languages. These tips focus on teaching basic computer operations; using annotations to foster error corrections in language; using video clips as a part of a U.S. history or culture-based English-as-a-Second-Language lesson; using karaoke to speak with less inhibition; and…

  14. Computational power and generative capacity of genetic systems.

    Science.gov (United States)

    Igamberdiev, Abir U; Shklovskiy-Kordi, Nikita E

    2016-01-01

    Semiotic characteristics of genetic sequences are based on the general principles of linguistics formulated by Ferdinand de Saussure, such as the arbitrariness of sign and the linear nature of the signifier. Besides these semiotic features that are attributable to the basic structure of the genetic code, the principle of generativity of genetic language is important for understanding biological transformations. The problem of generativity in genetic systems arises to a possibility of different interpretations of genetic texts, and corresponds to what Alexander von Humboldt called "the infinite use of finite means". These interpretations appear in the individual development as the spatiotemporal sequences of realizations of different textual meanings, as well as the emergence of hyper-textual statements about the text itself, which underlies the process of biological evolution. These interpretations are accomplished at the level of the readout of genetic texts by the structures defined by Efim Liberman as "the molecular computer of cell", which includes DNA, RNA and the corresponding enzymes operating with molecular addresses. The molecular computer performs physically manifested mathematical operations and possesses both reading and writing capacities. Generativity paradoxically resides in the biological computational system as a possibility to incorporate meta-statements about the system, and thus establishes the internal capacity for its evolution. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  15. Cultural Elements of English Movie Title

    Institute of Scientific and Technical Information of China (English)

    张琼

    2013-01-01

    Movie title is the name of a movie which to some extent determines the audience ’s choice to watch the movie or not. English movie title, as a special kind of English language, reflects language and culture of the specific English country. To better understand and appreciate the movie, it is essential to understand the cultural elements of the English movie title. The thesis with start with the introduction of movie title and its naming approaches, then analyze the three cultural elements that is historical, reli-gious and linguistic cultural elements in English movie title in the hope of providing helpful background knowledge for Chinese audience to better appreciate the English culture.

  16. Automatic generation of computable implementation guides from clinical information models.

    Science.gov (United States)

    Boscá, Diego; Maldonado, José Alberto; Moner, David; Robles, Montserrat

    2015-06-01

    Clinical information models are increasingly used to describe the contents of Electronic Health Records. Implementation guides are a common specification mechanism used to define such models. They contain, among other reference materials, all the constraints and rules that clinical information must obey. However, these implementation guides typically are oriented to human-readability, and thus cannot be processed by computers. As a consequence, they must be reinterpreted and transformed manually into an executable language such as Schematron or Object Constraint Language (OCL). This task can be difficult and error prone due to the big gap between both representations. The challenge is to develop a methodology for the specification of implementation guides in such a way that humans can read and understand easily and at the same time can be processed by computers. In this paper, we propose and describe a novel methodology that uses archetypes as basis for generation of implementation guides. We use archetypes to generate formal rules expressed in Natural Rule Language (NRL) and other reference materials usually included in implementation guides such as sample XML instances. We also generate Schematron rules from NRL rules to be used for the validation of data instances. We have implemented these methods in LinkEHR, an archetype editing platform, and exemplify our approach by generating NRL rules and implementation guides from EN ISO 13606, openEHR, and HL7 CDA archetypes.

  17. Dynamic computer-generated nonlinear-optical holograms

    Science.gov (United States)

    Liu, Haigang; Li, Jun; Fang, Xiangling; Zhao, Xiaohui; Zheng, Yuanlin; Chen, Xianfeng

    2017-08-01

    We propose and experimentally demonstrate dynamic nonlinear optical holograms by introducing the concept of computer-generated holograms for second-harmonic generation of a structured fundamental wave with a specially designed wave front. The generation of Laguerre-Gaussian second-harmonic beams is investigated in our experiment. Such a method, which only dynamically controls the wave front of the fundamental wave by a spatial light modulator, does not need domain inversion in nonlinear crystals and hence is a more flexible way to achieve the off-axis nonlinear second-harmonic beams. It can also be adopted in other schemes and has potential applications in nonlinear frequency conversion, optical signal processing, and real-time hologram, etc.

  18. Computer aided power flow software engineering and code generation

    Energy Technology Data Exchange (ETDEWEB)

    Bacher, R. [Swiss Federal Inst. of Tech., Zuerich (Switzerland)

    1996-02-01

    In this paper a software engineering concept is described which permits the automatic solution of a non-linear set of network equations. The power flow equation set can be seen as a defined subset of a network equation set. The automated solution process is the numerical Newton-Raphson solution process of the power flow equations where the key code parts are the numeric mismatch and the numeric Jacobian term computation. It is shown that both the Jacobian and the mismatch term source code can be automatically generated in a conventional language such as Fortran or C. Thereby one starts from a high level, symbolic language with automatic differentiation and code generation facilities. As a result of this software engineering process an efficient, very high quality newton-Raphson solution code is generated which allows easier implementation of network equation model enhancements and easier code maintenance as compared to hand-coded Fortran or C code.

  19. Computer aided power flow software engineering and code generation

    Energy Technology Data Exchange (ETDEWEB)

    Bacher, R. [Swiss Federal Inst. of Tech., Zuerich (Switzerland)

    1995-12-31

    In this paper a software engineering concept is described which permits the automatic solution of a non-linear set of network equations. The power flow equation set can be seen as a defined subset of a network equation set. The automated solution process is the numerical Newton-Raphson solution process of the power flow equations where the key code parts are the numeric mismatch and the numeric Jacobian term computation. It is shown that both the Jacobian and the mismatch term source code can be automatically generated in a conventional language such as Fortran or C. Thereby one starts from a high level, symbolic language with automatic differentiation and code generation facilities. As a result of this software engineering process an efficient, very high quality Newton-Raphson solution code is generated which allows easier implementation of network equation model enhancements and easier code maintenance as compared to hand-coded Fortran or C code.

  20. Modelling the spatial shape of nondiffracting beams: Experimental generation of Frozen Waves via computer generated holograms

    CERN Document Server

    Vieira, Tárcio A; Gesualdi, Marcos R R

    2013-01-01

    In this paper we implement experimentally the spatial shape modelling of nondiffracting optical beams via computer generated holograms. The results reported here are the experimental confirmation of the so called Frozen Wave method, developed few years ago. Optical beams of this type can possess potential applications in optical tweezers, medicine, atom guiding, remote sensing, etc..

  1. Fast high-resolution computer-generated hologram computation using multiple graphics processing unit cluster system.

    Science.gov (United States)

    Takada, Naoki; Shimobaba, Tomoyoshi; Nakayama, Hirotaka; Shiraki, Atsushi; Okada, Naohisa; Oikawa, Minoru; Masuda, Nobuyuki; Ito, Tomoyoshi

    2012-10-20

    To overcome the computational complexity of a computer-generated hologram (CGH), we implement an optimized CGH computation in our multi-graphics processing unit cluster system. Our system can calculate a CGH of 6,400×3,072 pixels from a three-dimensional (3D) object composed of 2,048 points in 55 ms. Furthermore, in the case of a 3D object composed of 4096 points, our system is 553 times faster than a conventional central processing unit (using eight threads).

  2. Grid generation and inviscid flow computation about aircraft geometries

    Science.gov (United States)

    Smith, Robert E.

    1989-01-01

    Grid generation and Euler flow about fighter aircraft are described. A fighter aircraft geometry is specified by an area ruled fuselage with an internal duct, cranked delta wing or strake/wing combinations, canard and/or horizontal tail surfaces, and vertical tail surfaces. The initial step before grid generation and flow computation is the determination of a suitable grid topology. The external grid topology that has been applied is called a dual-block topology which is a patched C (exp 1) continuous multiple-block system where inner blocks cover the highly-swept part of a cranked wing or strake, rearward inner-part of the wing, and tail components. Outer-blocks cover the remainder of the fuselage, outer-part of the wing, canards and extend to the far field boundaries. The grid generation is based on transfinite interpolation with Lagrangian blending functions. This procedure has been applied to the Langley experimental fighter configuration and a modified F-18 configuration. Supersonic flow between Mach 1.3 and 2.5 and angles of attack between 0 degrees and 10 degrees have been computed with associated Euler solvers based on the finite-volume approach. When coupling geometric details such as boundary layer diverter regions, duct regions with inlets and outlets, or slots with the general external grid, imposing C (exp 1) continuity can be extremely tedious. The approach taken here is to patch blocks together at common interfaces where there is no grid continuity, but enforce conservation in the finite-volume solution. The key to this technique is how to obtain the information required for a conservative interface. The Ramshaw technique which automates the computation of proportional areas of two overlapping grids on a planar surface and is suitable for coding was used. Researchers generated internal duct grids for the Langley experimental fighter configuration independent of the external grid topology, with a conservative interface at the inlet and outlet.

  3. A Group Recommendation System for Movies based on MAS

    Directory of Open Access Journals (Sweden)

    Christian Paulo VILLAVICENCIO

    2016-12-01

    Full Text Available Providing recommendations to groups of users has become popular in many applications today. Although several group recommendation techniques exist, the generation of items that satisfy all group members in an even way still remains a challenge. To this end, we have developed a multi-agent approach called PUMAS-GR that relies on negotiation techniques to improve group recommendations. We applied PUMAS-GR to the movies domain, and used the monotonic concession protocol to reach a consensus on the movies proposed to a group.

  4. Revisions to the hydrogen gas generation computer model

    Energy Technology Data Exchange (ETDEWEB)

    Jerrell, J.W.

    1992-08-31

    Waste Management Technology has requested SRTC to maintain and extend a previously developed computer model, TRUGAS, which calculates hydrogen gas concentrations within the transuranic (TRU) waste drums. TRUGAS was written by Frank G. Smith using the BASIC language and is described in the report A Computer Model of gas Generation and Transport within TRU Waste Drums (DP- 1754). The computer model has been partially validated by yielding results similar to experimental data collected at SRL and LANL over a wide range of conditions. The model was created to provide the capability of predicting conditions that could potentially lead to the formation of flammable gas concentrations within drums, and to assess proposed drum venting methods. The model has served as a tool in determining how gas concentrations are affected by parameters such as filter vent sizes, waste composition, gas generation values, the number and types of enclosures, water instrusion into the drum, and curie loading. The success of the TRUGAS model has prompted an interest in the program`s maintenance and enhancement. Experimental data continues to be collected at various sites on such parameters as permeability values, packaging arrangements, filter designs, and waste contents. Information provided by this data is used to improve the accuracy of the model`s predictions. Also, several modifications to the model have been made to enlarge the scope of problems which can be analyzed. For instance, the model has been used to calculate hydrogen concentrations inside steel cabinets containing retired glove boxes (WSRC-RP-89-762). The revised TRUGAS computer model, H2GAS, is described in this report. This report summarizes all modifications made to the TRUGAS computer model and provides documentation useful for making future updates to H2GAS.

  5. Revisions to the hydrogen gas generation computer model

    Energy Technology Data Exchange (ETDEWEB)

    Jerrell, J.W.

    1992-08-31

    Waste Management Technology has requested SRTC to maintain and extend a previously developed computer model, TRUGAS, which calculates hydrogen gas concentrations within the transuranic (TRU) waste drums. TRUGAS was written by Frank G. Smith using the BASIC language and is described in the report A Computer Model of gas Generation and Transport within TRU Waste Drums (DP- 1754). The computer model has been partially validated by yielding results similar to experimental data collected at SRL and LANL over a wide range of conditions. The model was created to provide the capability of predicting conditions that could potentially lead to the formation of flammable gas concentrations within drums, and to assess proposed drum venting methods. The model has served as a tool in determining how gas concentrations are affected by parameters such as filter vent sizes, waste composition, gas generation values, the number and types of enclosures, water instrusion into the drum, and curie loading. The success of the TRUGAS model has prompted an interest in the program's maintenance and enhancement. Experimental data continues to be collected at various sites on such parameters as permeability values, packaging arrangements, filter designs, and waste contents. Information provided by this data is used to improve the accuracy of the model's predictions. Also, several modifications to the model have been made to enlarge the scope of problems which can be analyzed. For instance, the model has been used to calculate hydrogen concentrations inside steel cabinets containing retired glove boxes (WSRC-RP-89-762). The revised TRUGAS computer model, H2GAS, is described in this report. This report summarizes all modifications made to the TRUGAS computer model and provides documentation useful for making future updates to H2GAS.

  6. "Reel" Marketing for Your Movie Collections and Film Resources

    Science.gov (United States)

    Germain, Carol Anne

    2012-01-01

    Foreign language films generate language acquisition, international cultural films help with global business interactions, medical videos teach students new medical procedures, and movies based on books encourage reading. Films can be instructional as well as FUN! Yet some of these cinematic materials receive little to no attention, not to mention…

  7. Cinephilia: movies, love and memory

    NARCIS (Netherlands)

    de Valck, M.; Hagener, M.

    2005-01-01

    The anthology Cinephilia: Movies, Love and Memory explores new periods, practices and definitions of what it means to love the cinema. The essays demonstrate that beyond individualist immersion in film, typical of the cinephilia as it was popular from the 1950s to the 1970s, a new type of cinephilia

  8. 3D measurement system based on computer-generated gratings

    Science.gov (United States)

    Zhu, Yongjian; Pan, Weiqing; Luo, Yanliang

    2010-08-01

    A new kind of 3D measurement system has been developed to achieve the 3D profile of complex object. The principle of measurement system is based on the triangular measurement of digital fringe projection, and the fringes are fully generated from computer. Thus the computer-generated four fringes form the data source of phase-shifting 3D profilometry. The hardware of system includes the computer, video camera, projector, image grabber, and VGA board with two ports (one port links to the screen, another to the projector). The software of system consists of grating projection module, image grabbing module, phase reconstructing module and 3D display module. A software-based synchronizing method between grating projection and image capture is proposed. As for the nonlinear error of captured fringes, a compensating method is introduced based on the pixel-to-pixel gray correction. At the same time, a least square phase unwrapping is used to solve the problem of phase reconstruction by using the combination of Log Modulation Amplitude and Phase Derivative Variance (LMAPDV) as weight. The system adopts an algorithm from Matlab Tool Box for camera calibration. The 3D measurement system has an accuracy of 0.05mm. The execution time of system is 3~5s for one-time measurement.

  9. Factor Xa generation by computational modeling: an additional discriminator to thrombin generation evaluation.

    Directory of Open Access Journals (Sweden)

    Kathleen E Brummel-Ziedins

    Full Text Available Factor (fXa is a critical enzyme in blood coagulation that is responsible for the initiation and propagation of thrombin generation. Previously we have shown that analysis of computationally generated thrombin profiles is a tool to investigate hemostasis in various populations. In this study, we evaluate the potential of computationally derived time courses of fXa generation as another approach for investigating thrombotic risk. Utilizing the case (n = 473 and control (n = 426 population from the Leiden Thrombophilia Study and each individual's plasma protein factor composition for fII, fV, fVII, fVIII, fIX, fX, antithrombin and tissue factor pathway inhibitor, tissue factor-initiated total active fXa generation was assessed using a mathematical model. FXa generation was evaluated by the area under the curve (AUC, the maximum rate (MaxR and level (MaxL and the time to reach these, TMaxR and TMaxL, respectively. FXa generation was analyzed in the entire populations and in defined subgroups (by sex, age, body mass index, oral contraceptive use. The maximum rates and levels of fXa generation occur over a 10- to 12- fold range in both cases and controls. This variation is larger than that observed with thrombin (3-6 fold in the same population. The greatest risk association was obtained using either MaxR or MaxL of fXa generation; with an ∼2.2 fold increased risk for individuals exceeding the 90(th percentile. This risk was similar to that of thrombin generation(MaxR OR 2.6. Grouping defined by oral contraceptive (OC use in the control population showed the biggest differences in fXa generation; a >60% increase in the MaxR upon OC use. FXa generation can distinguish between a subset of individuals characterized by overlapping thrombin generation profiles. Analysis of fXa generation is a phenotypic characteristic which may prove to be a more sensitive discriminator than thrombin generation among all individuals.

  10. Automatic Model Generation Framework for Computational Simulation of Cochlear Implantation

    DEFF Research Database (Denmark)

    Mangado Lopez, Nerea; Ceresa, Mario; Duchateau, Nicolas

    2016-01-01

    Recent developments in computational modeling of cochlear implantation are promising to study in silico the performance of the implant before surgery. However, creating a complete computational model of the patient's anatomy while including an external device geometry remains challenging. To addr......Recent developments in computational modeling of cochlear implantation are promising to study in silico the performance of the implant before surgery. However, creating a complete computational model of the patient's anatomy while including an external device geometry remains challenging....... To address such a challenge, we propose an automatic framework for the generation of patient-specific meshes for finite element modeling of the implanted cochlea. First, a statistical shape model is constructed from high-resolution anatomical μCT images. Then, by fitting the statistical model to a patient......'s CT image, an accurate model of the patient-specific cochlea anatomy is obtained. An algorithm based on the parallel transport frame is employed to perform the virtual insertion of the cochlear implant. Our automatic framework also incorporates the surrounding bone and nerve fibers and assigns...

  11. Computer controlled MHD power consolidation and pulse generation system

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, R.; Marcotte, K.; Donnelly, M.

    1990-01-01

    The major goal of this research project is to establish the feasibility of a power conversion technology which will permit the direct synthesis of computer programmable pulse power. Feasibility has been established in this project by demonstration of direct synthesis of commercial frequency power by means of computer control. The power input to the conversion system is assumed to be a Faraday connected MHD generator which may be viewed as a multi-terminal dc source and is simulated for the purpose of this demonstration by a set of dc power supplies. This consolidation/inversion (CI), process will be referred to subsequently as Pulse Amplitude Synthesis and Control (PASC). A secondary goal is to deliver a controller subsystem consisting of a computer, software, and computer interface board which can serve as one of the building blocks for a possible phase II prototype system. This report period work summarizes the accomplishments and covers the high points of the two year project. 6 refs., 41 figs.

  12. Random phase-free computer-generated hologram

    CERN Document Server

    Shimobaba, Tomoyoshi

    2015-01-01

    Addition of random phase to the object light is required in computer-generated holograms (CGHs) to widely diffuse the object light and to avoid its concentration on the CGH; however, this addition causes considerable speckle noise in the reconstructed image. For improving the speckle noise problem, techniques such as iterative phase retrieval algorithms and multi-random phase method are used; however, they are time consuming and are of limited effectiveness. Herein, we present a simple and computationally inexpensive method that drastically improves the image quality and reduces the speckle noise by multiplying the object light with the virtual convergence light. Feasibility of the proposed method is shown using simulations and optical reconstructions; moreover, we apply it to lens-less zoom-able holographic projection. The proposed method is useful for the speckle problems in holographic applications.

  13. Random phase-free computer-generated hologram.

    Science.gov (United States)

    Shimobaba, Tomoyoshi; Ito, Tomoyoshi

    2015-04-01

    Addition of random phase to the object light is required in computer-generated holograms (CGHs) to widely diffuse the object light and to avoid its concentration on the CGH; however, this addition causes considerable speckle noise in the reconstructed image. For improving the speckle noise problem, techniques such as iterative phase retrieval algorithms and multi-random phase method are used; however, they are time consuming and are of limited effectiveness. Herein, we present a simple and computationally inexpensive method that drastically improves the image quality and reduces the speckle noise by multiplying the object light with the virtual convergence light. Feasibility of the proposed method is shown using simulations and optical reconstructions; moreover, we apply it to lens-less zoom-able holographic projection. The proposed method is useful for the speckle problems in holographic applications.

  14. Computational Models for Creating Homogeneous Magnetic Field Generation Systems

    Directory of Open Access Journals (Sweden)

    Gerlys M. Villalobos-Fontalvo

    2013-11-01

    Full Text Available It is increasingly common to use magnetic fields at the cellular level to assess their interaction with biological tissues. The stimulation is usually done with Helmholtz coils which generate a uniform magnetic field in the center of the system. However, assessing cellular behavior with different magnetic field characteristics can be a long and expensive process. For this, it can be used computational models to previously estimate the cellular behavior due to variety of field characteristics prior to in-vitro stimulation in a laboratory. In this paper, we present a methodology for the development of three computational models of homogeneous magnetic field generation systems for possible application in cell stimulation. The models were developed in the Ansys Workbench environment and it was evaluated the magnetic flux density behavior at different configurations. The results were validated with theoretical calculations from the Biot-Savart law. Validated models will be coupled to Ansys APDL environment in order to assess the harmonic response of the system.

  15. Computational Particle Physics for Event Generators and Data Analysis

    CERN Document Server

    Perret-Gallix, Denis

    2013-01-01

    High-energy physics data analysis relies heavily on the comparison between experimental and simulated data as stressed lately by the Higgs search at LHC and the recent identification of a Higgs-like new boson. The first link in the full simulation chain is the event generation both for background and for expected signals. Nowadays event generators are based on the automatic computation of matrix element or amplitude for each process of interest. Moreover, recent analysis techniques based on the matrix element likelihood method assign probabilities for every event to belong to any of a given set of possible processes. This method originally used for the top mass measurement, although computing intensive, has shown its power at LHC to extract the new boson signal from the background. Serving both needs, the automatic calculation of matrix element is therefore more than ever of prime importance for particle physics. Initiated in the eighties, the techniques have matured for the lowest order calculations (tree-le...

  16. Geometric plane shapes for computer-generated holographic engraving codes

    Science.gov (United States)

    Augier, Ángel G.; Rabal, Héctor; Sánchez, Raúl B.

    2017-04-01

    We report a new theoretical and experimental study on hologravures, as holographic computer-generated laser-engravings. A geometric theory of images based on the general principles of light ray behaviour is shown. The models used are also applicable for similar engravings obtained by any non-laser method, and the solutions allow for the analysis of particular situations, not only in the case of light reflection mode, but also in transmission mode geometry. This approach is a novel perspective allowing the three-dimensional (3D) design of engraved images for specific ends. We prove theoretically that plane curves of very general geometric shapes can be used to encode image information onto a two-dimensional (2D) engraving, showing notable influence on the behaviour of reconstructed images that appears as an exciting investigation topic, extending its applications. Several cases of code using particular curvilinear shapes are experimentally studied. The computer-generated objects are coded by using the chosen curve type, and engraved by a laser on a plane surface of suitable material. All images are recovered optically by adequate illumination. The pseudoscopic or orthoscopic character of these images is considered, and an appropriate interpretation is presented.

  17. Computer-generated fiscal reports for food cost accounting.

    Science.gov (United States)

    Fromm, B; Moore, A N; Hoover, L W

    1980-08-01

    To optimize resource utilization for the provision of health-care services, well designed food cost accounting systems should facilitate effective decision-making. Fiscal reports reflecting the financial status of an organization at a given time must be current and representative so that managers have adequate data for planning and controlling. The computer-assisted food cost accounting discussed in this article can be integrated with other sub-systems and operations management techniques to provide the information needed to make decisions regarding revenues and expenses. Management information systems must be routinely evaluated and updated to meet the current needs of administrators. Further improvements in the food cost accounting system will be desirable whenever substantial changes occur within the foodservice operation at the University of Missouri-Columbia Medical Center or when advancements in computer technology provide more efficient methods for manipulating data and generating reports. Development of new systems and better applications of present systems could contribute significantly to the efficiency of operations in both health care and commercial foodservices. The computer-assisted food cost accounting system reported here might serve s a prototype for other management cost information systems.

  18. Sharing without laws: an exploration of social practices and ad hoc labeling standards in online movie piracy

    OpenAIRE

    Roberto Tietzmann; Liana Gross Furini

    2016-01-01

    This paper discusses self-labelling standards as sharing mediators in pirated versions of movies available online. Piracy has existed since the beginning of the film industry, challenging established rules and regulations. The dynamics of digital movie piracy often try to meet viewers' expectations while ignoring any regional and premiere date restrictions. Movie piracy organises its abundant offer by generating a self-regulatory repertoire of labeling standards. In this paper we propose an e...

  19. Voyager 2 Jupiter Eruption Movie

    Science.gov (United States)

    2000-01-01

    This movie records an eruptive event in the southern hemisphere of Jupiter over a period of 8 Jupiter days. Prior to the event, an undistinguished oval cloud mass cruised through the turbulent atmosphere. The eruption occurs over avery short time at the very center of the cloud. The white eruptive material is swirled about by the internal wind patterns of the cloud. As a result of the eruption, the cloud then becomes a type of feature seen elsewhere on Jupiter known as 'spaghetti bowls'.As Voyager 2 approached Jupiter in 1979, it took images of the planet at regular intervals. This sequence is made from 8 images taken once every Jupiter rotation period (about 10 hours). These images were acquired in the Violet filter around May 6, 1979. The spacecraft was about 50 million kilometers from Jupiter at that time.This time-lapse movie was produced at JPL by the Image Processing Laboratory in 1979.

  20. VLBA Movies Reveal New Details of Cosmic Jets

    Science.gov (United States)

    2008-01-01

    Astronomers have known for decades that supermassive black holes at the cores of galaxies can shoot out jets of subatomic particles at tremendous speeds. However, details about the physics of such jets, including how they are generated, how the high-speed flows are shaped into jets, and how fast the particles are moving, among many others, have remained elusive. An international team of researchers now is making an unprecedented long-term study of the motions of these giant jets, using the super-sharp imaging capabilities of the National Science Foundation's Very Long Baseline Array (VLBA). "We're making images of 200 galactic jets at regular intervals, tracking their motions and studying their magnetic-field properties. This is making major contributions to our understanding of such jets," said Matthew Lister, of Purdue University. MOJAVE Poster Click image for high-resolution file (11.9 MB) The research team has produced time-lapse movies of 100 of the jets, allowing measurement of the speed and direction of motion. "The results of these VLBA observations are going into a rich and still-growing set of data that is available to the entire astronomical research community as a tool for understanding the many unresolved questions we have about these jets," Lister said. The jet study is called MOJAVE -- Monitoring Of Jets in Active galactic nuclei with VLBA Experiments -- and began in 2002. It is a successor to an earlier VLBA study that regularly made images of nearly 200 jets from 1994 to 2002. The jets are powered by the gravitational energy of black holes containing hundreds of millions times more mass than the Sun. Black holes are concentrations of mass so dense that not even light can escape them. As these monsters draw material toward them, the material falls into a circular disk orbiting the black hole. The jets are propelled outward along the poles of the disk. The MOJAVE movies have given astronomers some surprises and also have spurred follow-on studies of

  1. Computational Needs for the Next Generation Electric Grid Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Birman, Kenneth; Ganesh, Lakshmi; Renessee, Robbert van; Ferris, Michael; Hofmann, Andreas; Williams, Brian; Sztipanovits, Janos; Hemingway, Graham; University, Vanderbilt; Bose, Anjan; Stivastava, Anurag; Grijalva, Santiago; Grijalva, Santiago; Ryan, Sarah M.; McCalley, James D.; Woodruff, David L.; Xiong, Jinjun; Acar, Emrah; Agrawal, Bhavna; Conn, Andrew R.; Ditlow, Gary; Feldmann, Peter; Finkler, Ulrich; Gaucher, Brian; Gupta, Anshul; Heng, Fook-Luen; Kalagnanam, Jayant R; Koc, Ali; Kung, David; Phan, Dung; Singhee, Amith; Smith, Basil

    2011-10-05

    The April 2011 DOE workshop, 'Computational Needs for the Next Generation Electric Grid', was the culmination of a year-long process to bring together some of the Nation's leading researchers and experts to identify computational challenges associated with the operation and planning of the electric power system. The attached papers provide a journey into these experts' insights, highlighting a class of mathematical and computational problems relevant for potential power systems research. While each paper defines a specific problem area, there were several recurrent themes. First, the breadth and depth of power system data has expanded tremendously over the past decade. This provides the potential for new control approaches and operator tools that can enhance system efficiencies and improve reliability. However, the large volume of data poses its own challenges, and could benefit from application of advances in computer networking and architecture, as well as data base structures. Second, the computational complexity of the underlying system problems is growing. Transmitting electricity from clean, domestic energy resources in remote regions to urban consumers, for example, requires broader, regional planning over multi-decade time horizons. Yet, it may also mean operational focus on local solutions and shorter timescales, as reactive power and system dynamics (including fast switching and controls) play an increasingly critical role in achieving stability and ultimately reliability. The expected growth in reliance on variable renewable sources of electricity generation places an exclamation point on both of these observations, and highlights the need for new focus in areas such as stochastic optimization to accommodate the increased uncertainty that is occurring in both planning and operations. Application of research advances in algorithms (especially related to optimization techniques and uncertainty quantification) could accelerate power

  2. Computational Needs for the Next Generation Electric Grid Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Birman, Kenneth; Ganesh, Lakshmi; Renessee, Robbert van; Ferris, Michael; Hofmann, Andreas; Williams, Brian; Sztipanovits, Janos; Hemingway, Graham; University, Vanderbilt; Bose, Anjan; Stivastava, Anurag; Grijalva, Santiago; Grijalva, Santiago; Ryan, Sarah M.; McCalley, James D.; Woodruff, David L.; Xiong, Jinjun; Acar, Emrah; Agrawal, Bhavna; Conn, Andrew R.; Ditlow, Gary; Feldmann, Peter; Finkler, Ulrich; Gaucher, Brian; Gupta, Anshul; Heng, Fook-Luen; Kalagnanam, Jayant R; Koc, Ali; Kung, David; Phan, Dung; Singhee, Amith; Smith, Basil

    2011-10-05

    The April 2011 DOE workshop, 'Computational Needs for the Next Generation Electric Grid', was the culmination of a year-long process to bring together some of the Nation's leading researchers and experts to identify computational challenges associated with the operation and planning of the electric power system. The attached papers provide a journey into these experts' insights, highlighting a class of mathematical and computational problems relevant for potential power systems research. While each paper defines a specific problem area, there were several recurrent themes. First, the breadth and depth of power system data has expanded tremendously over the past decade. This provides the potential for new control approaches and operator tools that can enhance system efficiencies and improve reliability. However, the large volume of data poses its own challenges, and could benefit from application of advances in computer networking and architecture, as well as data base structures. Second, the computational complexity of the underlying system problems is growing. Transmitting electricity from clean, domestic energy resources in remote regions to urban consumers, for example, requires broader, regional planning over multi-decade time horizons. Yet, it may also mean operational focus on local solutions and shorter timescales, as reactive power and system dynamics (including fast switching and controls) play an increasingly critical role in achieving stability and ultimately reliability. The expected growth in reliance on variable renewable sources of electricity generation places an exclamation point on both of these observations, and highlights the need for new focus in areas such as stochastic optimization to accommodate the increased uncertainty that is occurring in both planning and operations. Application of research advances in algorithms (especially related to optimization techniques and uncertainty quantification) could accelerate power

  3. Computer-Generated Holographic Gratings in Soft Matter

    CERN Document Server

    Zito, Gianluigi; Piccirillo, Bruno; Tkachenko, Volodymyr; Santamato, Enrico; Abbate, Giancarlo

    2013-01-01

    Standard multiple-beam holography has been largely used to produce gratings in polymer-liquid crystal composites, like POLICRYPS, H-PDLC gratings and POLIPHEM [1]. In this work we present a different approach to liquid crystalpolymeric grating production, based on the Computer-Generated Holography (CGH). The great advantage of using CGH is that interferometer-based schemes are no longer necessary, avoiding problems related to long term stability of the interference pattern and multi-beam complex optical setup. Moreover, the CGH technique allows a wider choice of pattern designs. In this preliminary work, we obtained promising results, as for instance the patterning of a square-wave refractive index modulation of a LCpolymeric composite, a pattern which is not achievable with standard two-beam holography.

  4. Next-generation sequencing: big data meets high performance computing.

    Science.gov (United States)

    Schmidt, Bertil; Hildebrandt, Andreas

    2017-02-02

    The progress of next-generation sequencing has a major impact on medical and genomic research. This high-throughput technology can now produce billions of short DNA or RNA fragments in excess of a few terabytes of data in a single run. This leads to massive datasets used by a wide range of applications including personalized cancer treatment and precision medicine. In addition to the hugely increased throughput, the cost of using high-throughput technologies has been dramatically decreasing. A low sequencing cost of around US$1000 per genome has now rendered large population-scale projects feasible. However, to make effective use of the produced data, the design of big data algorithms and their efficient implementation on modern high performance computing systems is required.

  5. Computer-Generated Experimental Designs for Irregular-Shaped Regions

    Energy Technology Data Exchange (ETDEWEB)

    Nguyen, Nam K.; Piepel, Gregory F.

    2005-09-01

    This paper focuses on the construction of computer-generated designs on irregularly-shaped, constrained regions. Overviews of the Fedorov exchange algorithm (FEA) and other exchange algorithms for the construction of D-optimal designs are given. A faster implementation of the FEA is presented, which is referred to as fast-FEA (denoted FFEA). The FFEA was applied to construct D-optimal designs for several published examples with constrained experimental regions. Designs resulting from the FFEA are more D-efficient than published designs, and provide benchmarks for future comparisons of design construction algorithms. The construction of G-optimal designs for constrained regions is also discussed and illustrated with a published example.

  6. Computational Swarming: A Cultural Technique for Generative Architecture

    Directory of Open Access Journals (Sweden)

    Sebastian Vehlken

    2014-11-01

    Full Text Available After a first wave of digital architecture in the 1990s, the last decade saw some approaches where agent-based modelling and simulation (ABM was used for generative strategies in architectural design. By taking advantage of the self-organisational capabilities of computational agent collectives whose global behaviour emerges from the local interaction of a large number of relatively simple individuals (as it does, for instance, in animal swarms, architects are able to understand buildings and urbanscapes in a novel way as complex spaces that are constituted by the movement of multiple material and informational elements. As a major, zoo-technological branch of ABM, Computational Swarm Intelligence (SI coalesces all kinds of architectural elements – materials, people, environmental forces, traffic dynamics, etc. – into a collective population. Thereby, SI and ABM initiate a shift from geometric or parametric planning to time-based and less prescriptive software tools.Agent-based applications of this sort are used to model solution strategies in a number of areas where opaque and complex problems present themselves – from epidemiology to logistics, and from market simulations to crowd control. This article seeks to conceptualise SI and ABM as a fundamental and novel cultural technique for governing dynamic processes, taking their employment in generative architectural design as a concrete example. In order to avoid a rather conventional application of philosophical theories to this field, the paper explores how the procedures of such technologies can be understood in relation to the media-historical concept of Cultural Techniques.

  7. Grid generation and flow computation about a Martian entry vehicle

    Science.gov (United States)

    Stewart, J. E.; Tiwari, S. N.

    1990-01-01

    A number of vehicles are currently being proposed for a manned mission to Mars. One of these vehicles has a modified blunt-nosed cone configuration. Experimental results were obtained for this vehicle in 1968. They show lift-over-drag ratios comparable to those needed for Mars entry. Computations are performed to verify the earlier results and to further describe the flight characteristics of this vehicle. An analytical method is used to define the surface of this vehicle. A single-block volume grid is generated around the vehicle using the algebraic Two-Boundary Grid Generation algorithm (TBGG) and transfinite interpolation. Euler solutions are then obtained from a Langley Aerodynamic Upward Relaxation Algorithm (LAURA) at Mach 6.0 and angles of attack of 0, 6, and 12 deg. The lift coefficient determined from the LAURA code agree very well with the experimental results. The drag and pitching moment coefficients, however, are underestimated by the code since viscous effects are not considered. Contour plots of the flowfield show no evidence of separation for angles of attack up to 12 deg.

  8. English Movies and English Learning in College

    Institute of Scientific and Technical Information of China (English)

    张爽

    2015-01-01

    Nowadays, English movies have been considered as one of the most effective ways to assist students to keep interest in improving their English abilities and enlarge their English vocabularies, as well as their cross cultural communicative ability. Based on the functions of English movies, which make them meet the needs of college students’English acquisition, this paper ana⁃lyzes the advantages of English movies in English learning.

  9. Using movies to teach professionalism to medical students

    Directory of Open Access Journals (Sweden)

    Klemenc-Ketis Zalika

    2011-08-01

    Full Text Available Abstract Background Professionalism topics are usually not covered as a separate lesson within formal curriculum, but in subtler and less officially recognized educational activities, which makes them difficult to teach and assess. Interactive methods (e.g. movies could be efficient teaching methods but are rarely studied. The aims of this study were: 1 to test the relevance and usefulness of movies in teaching professionalism to fourth year medical students and, 2 to assess the impact of this teaching method on students' attitudes towards some professionalism topics. Method This was an education study with qualitative data analysis in a group of eleven fourth year medical students from the Medical School of University Maribor who attended an elective four month course on professionalism. There were 8 (66.7% female students in the group. The mean age of the students was 21.9 ± 0.9 years. The authors used students' written reports and oral presentations as the basis for qualitative analysis using thematic codes. Results Students recognised the following dimensions in the movie: communication, empathy, doctors' personal interests and palliative care. It also made them think about their attitudes towards life, death and dying. Conclusions The controlled environment of movies successfully enables students to explore their values, beliefs, and attitudes towards features of professionalism without feeling that their personal integrity had been threatened. Interactive teaching methods could become an indispensible aid in teaching professionalism to new generations.

  10. The effect of positive and negative movie alcohol portrayals on transportation and attitude toward the movie

    NARCIS (Netherlands)

    Koordeman, R.; Anschutz, D.J.; Engels, R.C.M.E.

    2014-01-01

    Background: This study examined the effects of alcohol portrayals on transportation and attitude toward a movie. In addition, we examined whether positive and negative movie alcohol portrayals affect transportation into and attitude toward the movie. Methods: A within-subject design was used in whic

  11. Fast computer-generated hologram computation using rendered depth map image

    Science.gov (United States)

    Kazempourradi, Seyedmahdi; Ulusoy, Erdem; Urey, Hakan

    2017-03-01

    We propose a method for computing realistic computer-generated holograms (CGHs) of three-dimensional (3D) objects, where we benefit from well-established graphical processing units (GPUs) and computer graphics techniques to handle occlusion, shading and parallax effects. The graphics render provides a 2D perspective image including occlusion and shading effects. We also extract the depth map data of the scene. The intensity values and 3D positions of object points are extracted by combining the rendered intensity image and the depth map (Z-buffer) image. We divide the depth range into several planes and quantize the depth value of 3D image points to the nearest plane. In the CGH computation part, we perform proper Fresnel transformations of these planar objects and sum them up to create the hologram corresponding to the particular viewpoint. We then repeat the entire procedure for all possible viewpoints and cover the hologram area. The experimental results show that the technique is capable of performing high quality reconstructions in a fast manner.

  12. The fifth generation computer project state of the art report 111

    CERN Document Server

    Scarrott

    1983-01-01

    The Fifth Generation Computer Project is a two-part book consisting of the invited papers and the analysis. The invited papers examine various aspects of The Fifth Generation Computer Project. The analysis part assesses the major advances of the Fifth Generation Computer Project and provides a balanced analysis of the state of the art in The Fifth Generation. This part provides a balanced and comprehensive view of the development in Fifth Generation Computer technology. The Bibliography compiles the most important published material on the subject of The Fifth Generation.

  13. Computational design of materials for solar hydrogen generation

    Science.gov (United States)

    Umezawa, Naoto

    Photocatalysis has a great potential for the production of hydrogen from aquerous solution under solar light. In this talk, two different approaches toward the computational materials desing for solar hydrogen generation will be presented. Tin (Sn), which has two major oxidation states, Sn2+ and Sn4+, is abundant on the earth's crust. Recently, visible-light responsive photocatalytc H2 evolution reaction was identified over a mixed valence tin oxide Sn3O4. We have carried out crystal structure prediction for mixed valence tin oxides in different atomic compositions under ambient pressure condition using advanced computational methods based on the evolutionary crystal-structure search and density-functional theory. The predicted novel crystal structures realize the desirable band gaps and band edge positions for H2 evolution under visible light irradiation. It is concluded that multivalent tin oxides have a great potential as an abundant, cheap and environmentally-benign solar-energy conversion photofunctional materials. Transition metal doping is effective for sensitizing SrTiO3 under visible light. We have theoretically investigated the roles of the doped Cr in STO based on hybrid density-functional calculations. Cr atoms are preferably substituting for Ti under any equilibrium growth conditions. The lower oxidation state Cr3+, which is stabilized under an n-type condition of STO, is found to be advantageous for the photocatalytic performance. It is firther predicted that lanthanum is the best codopant for stabilizing the favorable oxidation state, Cr3+. The prediction was validated by our experiments that La and Cr co-doped STO shows the best performance among examined samples. This work was supported by the Japan Science and Technology Agency (JST) Precursory Research for Embryonic Science and Technology (PRESTO) and International Research Fellow program of Japan Society for the Promotion of Science (JSPS) through project P14207.

  14. Computer-generated global map of valley networks on Mars

    Science.gov (United States)

    Luo, Wei; Stepinski, T. F.

    2009-11-01

    The presence of valley networks (VN) on Mars suggests that early Mars was warmer and wetter than present. However, detailed geomorphic analyses of individual networks have not led to a consensus regarding their origin. An additional line of evidence can be provided by the global pattern of dissection on Mars, but the currently available global map of VN, compiled from Viking images, is incomplete and outdated. We created an updated map of VN by using a computer algorithm that parses topographic data and recognizes valleys by their morphologic signature. This computer-generated map was visually inspected and edited to produce the final updated map of VN. The new map shows an increase in total VN length by a factor of 2.3. A global map of dissection density, D, derived from the new VN map, shows that the most highly dissected region forms a belt located between the equator and mid-southern latitudes. The most prominent regions of high values of D are the northern Terra Cimmeria and the Margaritifer Terra where D reaches the value of 0.12 km-1 over extended areas. The average value of D is 0.062 km-1, only 2.6 times lower than the terrestrial value of D as measured in the same fashion. These relatively high values of dissection density over extensive regions of the planet point toward precipitation-fed runoff erosion as the primary mechanism of valley formation. Assuming a warm and wet early Mars, peculiarity of the global pattern of dissection is interpreted in the terms of climate controlling factors influenced by the topographic dichotomy.

  15. How 3-D Movies Work

    Institute of Scientific and Technical Information of China (English)

    吕铁雄

    2011-01-01

    难度:★★★★☆词数:450 建议阅读时间:8分钟 Most people see out of two eyes. This is a basic fact of humanity,but it’s what makes possible the illusion of depth(纵深幻觉) that 3-D movies create. Human eyes are spaced about two inches apart, meaning that each eye gives the brain a slightly different perspective(透视感)on the same object. The brain then uses this variance to quickly determine an object’s distance.

  16. Movies

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    <正>Life Show (2002) As an art film director, Huo Jianqi is an expert at using colour and ambiance to set the mood in his works. Following his highly successful Postman in the Mountains (1998), set in a rural village, he moves his show to the bustling city of Wuhan in southern China. Life Show (2002) tells the story of Lai Shuang Yang (Tao Hong), a smart divorcee who runs a small snack stall

  17. MOVIE

    Institute of Scientific and Technical Information of China (English)

    阿獠

    2004-01-01

    <正> 生化危机启示录Resident Evil 2导演:亚历山大·威特演员:米拉·乔沃维奇希艾娜·盖尔利类型:科幻/惊悚/动作发行:美国哥伦比亚三星公司故事以《生化危机1》的最后一组场景作为开始:艾丽丝被强制休眠了很久,终于悠悠转醒,却发现自己最担心的事已然变成现实—一嗜杀成性的活死人僵尸遍布

  18. Computer Generated Hologram System for Wavefront Measurement System Calibration

    Science.gov (United States)

    Olczak, Gene

    2011-01-01

    Computer Generated Holograms (CGHs) have been used for some time to calibrate interferometers that require nulling optics. A typical scenario is the testing of aspheric surfaces with an interferometer placed near the paraxial center of curvature. Existing CGH technology suffers from a reduced capacity to calibrate middle and high spatial frequencies. The root cause of this shortcoming is as follows: the CGH is not placed at an image conjugate of the asphere due to limitations imposed by the geometry of the test and the allowable size of the CGH. This innovation provides a calibration system where the imaging properties in calibration can be made comparable to the test configuration. Thus, if the test is designed to have good imaging properties, then middle and high spatial frequency errors in the test system can be well calibrated. The improved imaging properties are provided by a rudimentary auxiliary optic as part of the calibration system. The auxiliary optic is simple to characterize and align to the CGH. Use of the auxiliary optic also reduces the size of the CGH required for calibration and the density of the lines required for the CGH. The resulting CGH is less expensive than the existing technology and has reduced write error and alignment error sensitivities. This CGH system is suitable for any kind of calibration using an interferometer when high spatial resolution is required. It is especially well suited for tests that include segmented optical components or large apertures.

  19. EIGER: A new generation of computational electromagnetics tools

    Energy Technology Data Exchange (ETDEWEB)

    Wilton, D.R. [Houston Univ., TX (United States). Dept. of Electrical Engineering; Johnson, W.A.; Jorgenson, R.E. [Sandia National Labs., Albuquerque, NM (United States); Sharpe, R.M.; Grant, J.B. [Lawrence Livermore National Lab., CA (United States)

    1996-03-01

    The EIGER project (Electromagnetic Interactions GenERalized) endeavors to bring the next generation of spectral domain electromagnetic analysis tools to maturity and to cast them in a general form which is amenable to a variety of applications. The tools are written in Fortran 90 and with an object oriented philosophy to yield a package that is easily ported to a variety of platforms, simply maintained, and above all efficiently modified to address wide ranging applications. The modular development style and the choice of Fortran 90 is also driven by the desire to run efficiently on existing high performance computer platforms and to remain flexible for new architectures that are anticipated. The electromagnetic tool box consists of extremely accurate physics models for 2D and 3D electromagnetic scattering, radiation, and penetration problems. The models include surface and volume formulations for conductors and complex materials. In addition, realistic excitations and symmetries are incorporated, as well as, complex environments through the use of Green`s functions.

  20. Too real for comfort? Uncanny responses to computer generated faces.

    Science.gov (United States)

    MacDorman, Karl F; Green, Robert D; Ho, Chin-Chang; Koch, Clinton T

    2009-05-01

    As virtual humans approach photorealistic perfection, they risk making real humans uncomfortable. This intriguing phenomenon, known as the uncanny valley, is well known but not well understood. In an effort to demystify the causes of the uncanny valley, this paper proposes several perceptual, cognitive, and social mechanisms that have already helped address riddles like empathy, mate selection, threat avoidance, cognitive dissonance, and psychological defenses. In the four studies described herein, a computer generated human character's facial proportions, skin texture, and level of detail were varied to examine their effect on perceived eeriness, human likeness, and attractiveness. In Study I, texture photorealism and polygon count increased human likeness. In Study II, texture photorealism heightened the accuracy of human judgments of ideal facial proportions. In Study III, atypical facial proportions were shown to be more disturbing on photorealistic faces than on other faces. In Study IV, a mismatch in the size and texture of the eyes and face was especially prone to make a character eerie. These results contest the depiction of the uncanny valley as a simple relation between comfort level and human likeness. This paper concludes by introducing a set of design principles for bridging the uncanny valley.

  1. Computer-generated ovaries to assist follicle counting experiments.

    Directory of Open Access Journals (Sweden)

    Angelos Skodras

    Full Text Available Precise estimation of the number of follicles in ovaries is of key importance in the field of reproductive biology, both from a developmental point of view, where follicle numbers are determined at specific time points, as well as from a therapeutic perspective, determining the adverse effects of environmental toxins and cancer chemotherapeutics on the reproductive system. The two main factors affecting follicle number estimates are the sampling method and the variation in follicle numbers within animals of the same strain, due to biological variability. This study aims at assessing the effect of these two factors, when estimating ovarian follicle numbers of neonatal mice. We developed computer algorithms, which generate models of neonatal mouse ovaries (simulated ovaries, with characteristics derived from experimental measurements already available in the published literature. The simulated ovaries are used to reproduce in-silico counting experiments based on unbiased stereological techniques; the proposed approach provides the necessary number of ovaries and sampling frequency to be used in the experiments given a specific biological variability and a desirable degree of accuracy. The simulated ovary is a novel, versatile tool which can be used in the planning phase of experiments to estimate the expected number of animals and workload, ensuring appropriate statistical power of the resulting measurements. Moreover, the idea of the simulated ovary can be applied to other organs made up of large numbers of individual functional units.

  2. Computer generated slides: a need to curb our enthusiasm.

    Science.gov (United States)

    Dalal, M D; Daver, B M

    1996-12-01

    The popular use of computer generated slides for presentations during plastic surgery scientific meetings has opened a fresh chapter in audiovisual techniques. Although the profusion of colours seen during presentations is a visual treat, the information imparted by these slides leaves much to be desired and raises the question of whether such attractive and apparently professionally made slides are visual aids during such presentations. Presentation slides are displayed for a very short time (10-15 seconds) as compared to slides displayed during a lecture and therefore these presentation slides should have the ability to impart their information very quickly. We conducted a study wherein 36 slides, each having a different colour combination, were displayed to a class of third year medical students who were asked to judge the efficacy of each slide. The attractiveness, clarity and recall of each slide was graded by every student and, with the information obtained, the most effective format and colour combinations to be used while making slides for presentations were established. We conclude that the best format for slides is a plain dark coloured background (blue, purple or green) and a separate, contrasting plain dark coloured title text background (red, green or purple), with white letters for the text and yellow letters for the title.

  3. Visualization of x-ray computer tomography using computer-generated holography

    Science.gov (United States)

    Daibo, Masahiro; Tayama, Norio

    1998-09-01

    The theory converted from x-ray projection data to the hologram directly by combining the computer tomography (CT) with the computer generated hologram (CGH), is proposed. The purpose of this study is to offer the theory for realizing the all- electronic and high-speed seeing through 3D visualization system, which is for the application to medical diagnosis and non- destructive testing. First, the CT is expressed using the pseudo- inverse matrix which is obtained by the singular value decomposition. CGH is expressed in the matrix style. Next, `projection to hologram conversion' (PTHC) matrix is calculated by the multiplication of phase matrix of CGH with pseudo-inverse matrix of the CT. Finally, the projection vector is converted to the hologram vector directly, by multiplication of the PTHC matrix with the projection vector. Incorporating holographic analog computation into CT reconstruction, it becomes possible that the calculation amount is drastically reduced. We demonstrate the CT cross section which is reconstituted by He-Ne laser in the 3D space from the real x-ray projection data acquired by x-ray television equipment, using our direct conversion technique.

  4. Technology and Terrorism in the Movie Brazil

    Science.gov (United States)

    Stivers, Richard

    2006-01-01

    The movie "Brazil" calls attention to the relationship between technology and terrorism. Terrorism appears to be a threat to the order that technology creates. But terrorism forces technology to adapt and change so that technology perfects itself as a system. In the movie, terrorism is equated with any form of bureaucratic deviance so that…

  5. Using Movies To Teach Students about Disabilities.

    Science.gov (United States)

    Safran, Stephen P.

    2000-01-01

    This article discusses using movies to teach students about disabilities. It addresses considerations in choosing movies, gauging the accuracy of the portrayal, and identifying positive images and negative stereotypes. A checklist for evaluating positive and negative representations is provided, along with a format to assess disability portrayal…

  6. Making Movies Active: Lessons from Simulations

    Science.gov (United States)

    Sunderland, Sheri; Rothermel, Jonathan C.; Lusk, Adam

    2009-01-01

    Movies have a long and distinguished history in the political science and international relations classrooms; they provide connections between abstract theories and concepts and concrete everyday practices. However, traditional approaches to teaching movies in the political science and international relations classrooms allow for passive student…

  7. Using Movies to Teach Family Systems Concepts.

    Science.gov (United States)

    Hudock, Anthony M., Jr.; Warden, Sherry A. Gallagher

    2001-01-01

    This article reflects a review of research relevant to family systems training and the use of films in the teaching of family systems theory. Advantages and disadvantages of using movies in an introductory-level graduate family therapy course are discussed. An outline of family therapy training objectives, as well as examples of a movie-based…

  8. Rotating Detonation Combustion: A Computational Study for Stationary Power Generation

    Science.gov (United States)

    Escobar, Sergio

    The increased availability of gaseous fossil fuels in The US has led to the substantial growth of stationary Gas Turbine (GT) usage for electrical power generation. In fact, from 2013 to 2104, out of the 11 Tera Watts-hour per day produced from fossil fuels, approximately 27% was generated through the combustion of natural gas in stationary GT. The thermodynamic efficiency for simple-cycle GT has increased from 20% to 40% during the last six decades, mainly due to research and development in the fields of combustion science, material science and machine design. However, additional improvements have become more costly and more difficult to obtain as technology is further refined. An alternative to improve GT thermal efficiency is the implementation of a combustion regime leading to pressure-gain; rather than pressure loss across the combustor. One concept being considered for such purpose is Rotating Detonation Combustion (RDC). RDC refers to a combustion regime in which a detonation wave propagates continuously in the azimuthal direction of a cylindrical annular chamber. In RDC, the fuel and oxidizer, injected from separated streams, are mixed near the injection plane and are then consumed by the detonation front traveling inside the annular gap of the combustion chamber. The detonation products then expand in the azimuthal and axial direction away from the detonation front and exit through the combustion chamber outlet. In the present study Computational Fluid Dynamics (CFD) is used to predict the performance of Rotating Detonation Combustion (RDC) at operating conditions relevant to GT applications. As part of this study, a modeling strategy for RDC simulations was developed. The validation of the model was performed using benchmark cases with different levels of complexity. First, 2D simulations of non-reactive shock tube and detonation tubes were performed. The numerical predictions that were obtained using different modeling parameters were compared with

  9. Computer program to generate attitude error equations for a gimballed platform

    Science.gov (United States)

    Hall, W. A., Jr.; Morris, T. D.; Rone, K. Y.

    1972-01-01

    Computer program for solving attitude error equations related to gimballed platform is described. Program generates matrix elements of attitude error equations when initial matrices and trigonometric identities have been defined. Program is written for IBM 360 computer.

  10. COMPUTER OPERATING INSTRUCTIONS FOR THE SIMU LATED TELEMETRY DATA GENERATION PROGRAM (STSTLM) MILESTONE 7,

    Science.gov (United States)

    computer at the tracking station. The STSTLM program will also generate the System Time Code Word ( STCW ) and the Input Control Word in exactly the same format as they are normally input to the TLM computer. (Author)

  11. Editorial for Focus Issue on Digital and Computer Generated Holography (DCH)

    Institute of Scientific and Technical Information of China (English)

    Ting-Chung Poon

    2009-01-01

    @@ This focus issue Digital and Computer Generated Holography (DCH) combines the contributions from digital holography (DH) and computer-generated holography (CGH) into a single issue. We have classified the papers into four topics: holographic microscopy, computer-generated holography, metrology and speckles, and finally other applications. It is hoped that this issue will bring the research community's attention to some of the latest development in DH and CGH.

  12. Remixing Memory through Home Movies

    Directory of Open Access Journals (Sweden)

    Shaun Wilson

    2011-05-01

    Full Text Available

    Abstract: The moving image has traditionally provided a catalyst for screen-based culture to develop a language that evokes a means and experience of storytelling positioned in-between the image and the viewer.  However, this article will frame such a relationship by distancing the moving image from a cinematic or industrial context to instead look to the amateur cohort of private films commonly referred to as ‘home movies’, In doing so, I will consider what Bachelard refers to as a returning to childhood in search of memory, to form a reasoned understanding of the ways in which memory itself can be grafted in-between film and experience. This article will focus on celluloid film which I will define as vintage home movies, namely Standard 8mm and Super 8mm film contributed from domestic-orientated archives. The discussion will examine two main video installations evidencing selected work in the wider series.Filmic Memorials (2002-06 comprised of a substantial body of work established from my family collection of 8mm home movies.

    Résumé: Dans notre culture de l'écran, l 'image mobile a souvent servi de catalyseur à l

  13. Efficiency of including first-generation information in second-generation ranking and selection: results of computer simulation.

    Science.gov (United States)

    T.Z. Ye; K.J.S. Jayawickrama; G.R. Johnson

    2006-01-01

    Using computer simulation, we evaluated the impact of using first-generation information to increase selection efficiency in a second-generation breeding program. Selection efficiency was compared in terms of increase in rank correlation between estimated and true breeding values (i.e., ranking accuracy), reduction in coefficient of variation of correlation...

  14. Natural language computing an English generative grammar in Prolog

    CERN Document Server

    Dougherty, Ray C

    2013-01-01

    This book's main goal is to show readers how to use the linguistic theory of Noam Chomsky, called Universal Grammar, to represent English, French, and German on a computer using the Prolog computer language. In so doing, it presents a follow-the-dots approach to natural language processing, linguistic theory, artificial intelligence, and expert systems. The basic idea is to introduce meaningful answers to significant problems involved in representing human language data on a computer. The book offers a hands-on approach to anyone who wishes to gain a perspective on natural language

  15. Smoking in movies in Australia: who feels over-exposed and what level of regulation will the community accept?

    Science.gov (United States)

    Paul, Christine L; Walsh, Raoul A; Stacey, Fiona; Tzelepis, Flora; Oakes, Wendy; Tang, Anita

    2008-12-01

    This study aimed to examine recent levels of exposure to smoking in movies, how the community perceived the level of smoking they saw in recently-viewed movies and whether there was community support for any form of regulation. As part of a 2004 New South Wales survey of smoking-related perceptions and practices, 1,154 adults participated in a computer-assisted telephone interview about perceptions relating to smoking depiction in movies and television. More than one-quarter of those who had seen a recent movie in the cinema (28.5%) or on DVD (33.9%) thought that the movie contained excessive or inappropriate smoking. More than half the sample (59.1%) considered it likely the tobacco industry played a role in the level of smoking depiction, although only 18% of those who thought a recent movie contained excessive smoking attributed this to the tobacco industry. Almost two-thirds of respondents favoured screening anti-tobacco advertisements prior to movies with smoking. Cinema and DVD movies commonly include scenes where there is excessive or inappropriate smoking. It is widely believed that the tobacco industry is contributing to this, and there is strong community support for action to curb the harmful influences this may be having.

  16. Cloud Computing Trace Characterization and Synthetic Workload Generation

    Science.gov (United States)

    2013-03-01

    to design realistic cloud workloads, which drive the evaluation of Hadoop job schedulers and Hadoop shared storage system performance. The trace...synthesizing realistic workload traces for studying the hadoop ecosystem. Presented at Modeling, Analysis & Simulation of Computer and

  17. Global, Computer-generated Map of Valley Networks on Mars

    Science.gov (United States)

    Luo, W.; Stepinski, T. F.

    2009-03-01

    The new, global map of valley networks on Mars has been created entirely by a computer algorithm parsing topographic data. Dependencies between dissection density and its potential controlling factors are derived and discussed.

  18. Computational Simulation of Explosively Generated Pulsed Power Devices

    Science.gov (United States)

    2013-03-21

    physics models for magnetohydrodynamics, and ALEGRA-HEDP, which builds on the ALEGRA- MHD version and adds physics model that allow simulation of high energy...development, there is a genuine need for more theory-based research and an accurate computer modeling capability. One of the programs that has done...developed by Sandia National Laboratories, to develop a computer model that can accurately represent an FEG and that can be verified against existing

  19. MovieRemix: Having Fun Playing with Videos

    Directory of Open Access Journals (Sweden)

    Nicola Dusi

    2011-01-01

    scenario. Known as remix or video remix, the produced video may have new and different meanings with respect to the source material. Unfortunately, when managing audiovisual objects, the technological aspect can be a burden for many creative users. Motivated by the large success of the gaming market, we propose a novel game and an architecture to make the remix process a pleasant and stimulating gaming experience. MovieRemix allows people to act like a movie director, but instead of dealing with cast and cameras, the player has to create a remixed video starting from a given screenplay and from video shots retrieved from the provided catalog. MovieRemix is not a simple video editing tool nor is a simple game: it is a challenging environment that stimulates creativity. To temp to play the game, players can access different levels of screenplay (original, outline, derived and can also challenge other players. Computational and storage issues are kept at the server side, whereas the client device just needs to have the capability of playing streaming videos.

  20. Statistical Patterns in Movie Rating Behavior.

    Directory of Open Access Journals (Sweden)

    Marlon Ramos

    Full Text Available Currently, users and consumers can review and rate products through online services, which provide huge databases that can be used to explore people's preferences and unveil behavioral patterns. In this work, we investigate patterns in movie ratings, considering IMDb (the Internet Movie Database, a highly visited site worldwide, as a source. We find that the distribution of votes presents scale-free behavior over several orders of magnitude, with an exponent very close to 3/2, with exponential cutoff. It is remarkable that this pattern emerges independently of movie attributes such as average rating, age and genre, with the exception of a few genres and of high-budget films. These results point to a very general underlying mechanism for the propagation of adoption across potential audiences that is independent of the intrinsic features of a movie and that can be understood through a simple spreading model with mean-field avalanche dynamics.

  1. Clinical application of a second generation electrocardiographic computer program.

    Science.gov (United States)

    Pipberger, H V; McCaughan, D; Littmann, D; Pipberger, H A; Cornfield, J; Dunn, R A; Batchlor, C D; Berson, A S

    1975-05-01

    An electrocardiographic computer program based on multivariate analysis of orthogonal leads (Frank) was applied to records transmitted daily by telephone from the Veterans Administration Hospital, West Roxbury, Mass., to the Veterans Administration Hospital, Washington, D. C. A Bayesian classification procedure was used to compute probabilities for all diagnostic categories that might be encountered in a given record. Computer results were compared with interpretations of conventional 12 lead tracings. Of 1,663 records transmitted, 1,192 were selected for the study because the clinical diagnosis in these cases could be firmly established on the basis of independent, nonelectrocardiographic information. Twenty-one percent of the records were obtained from patients without evidence of cardiac disease and 79 percent from patients with various cardiovascular illnesses. Diagnostic electrocardiographic classifications were considered correct when in agreement with documented clinical diagnoses. Of the total sample of 1,192 recordings, 86 percent were classified correctly by computer as compared with 68 percent by conventional 12 lead electrocardiographic analysis. Improvement in diagnostic recognition by computer was most striking in patients with hypertensive cardiovascular disease or chronic obstructive lung disease. The multivariate classification scheme functioned most efficiently when a problem-oriented approach to diagnosis was simulated. This was accomplished by a simple method of adjusting prior probabilities according to the diagnostic problem under consideration.

  2. Computation of Superconducting Generators for Wind Turbine Applications

    DEFF Research Database (Denmark)

    Rodriguez Zermeno, Victor Manuel

    , to the actual generators in the KW (MW) class with an expected cross section in the order of decimeters (meters). This thesis work presents cumulative results intended to create a bottom-up model of a synchronous generator with superconducting rotor windings. In a first approach, multiscale meshes with large...... relationship to model stacks of superconducting tapes. This method provided an additional speedup of about two orders of magnitude when calculating AC losses in superconducting stacks. The anisotropic bulk was latter used to model a generator with superconducting rotor windings. Transient response......The idea of introducing a superconducting generator for offshore wind turbine applications has received increasing support. It has been proposed as a way to meet energy market requirements and policies demanding clean energy sources in the near future. However, design considerations have to take...

  3. Piracy, Music, and Movies: A Natural Experiment

    OpenAIRE

    Adermon, Adrian; Liang, Che-Yuan

    2010-01-01

    Abstract: This paper investigates the effects of illegal file sharing (piracy) on music and movie sales. The Swedish implementation of the European Union directive IPRED on April 1, 2009 suddenly increased the risk of being caught and prosecuted for file sharing. We investigate the subsequent drop in piracy as approximated by the drop in Swedish Internet traffic and the effects on music and movie sales in Sweden. We find that the reform decreased Internet traffic by 18 percent during the subs...

  4. Determination of Optimum Frame Rates for Observation of Construction Operations from Time-Lapse Movies

    Directory of Open Access Journals (Sweden)

    Y. M. Ibrahim

    2012-07-01

    Full Text Available Construction professionals have been using time-lapse movies in monitoring construction operations. However, some amount of detail is always lost in the interval between two consecutive frames in a time-lapse movie. This poses the question: By how much can the frame rate be lowered from the standard 30fps (frames per second to allow for the accurate observation of construction operations from a time-lapse movie? This paper addresses the problem by establishing the optimum frame rates for observation of activities related to mortar mixing and block handling. The activities were first recorded at the standard rate of 30fps. Using the Adobe Premier Pro video editing software, the records were then segregated into still images from which 15 different time-lapse movies of various time intervals were generated. The movies were then shown to 25 Construction Managers. A structured questionnaire was employed to capture the level of accuracy with which Construction Managers could interpret the job site situation from each movie. The results suggest that 1fpm (frame per minute is sufficient for the accurate tracking of labourers involved in mortar mixing while 1 frame in every 20 seconds is sufficient for accurate identification of number of cement bags used. However, for tracking number of blocks off-loaded, and those damaged, 1 frame in every 2 seconds is required.

  5. Generating Turing Machines by Use of Other Computation Models

    Directory of Open Access Journals (Sweden)

    Leszek Dubiel

    2003-01-01

    Full Text Available For each problem that can be solved there exists algorithm, which can be described with a program of Turing machine. Because this is very simple model programs tend to be very complicated and hard to analyse by human. The best practice to solve given type of problems is to define a new model of computation that allows for quick and easy programming, and then to emulate its operation with Turing machine. This article shows how to define most suitable model for computation on natural numbers and defines Turing machine that emulates its operation.

  6. Fast calculation of computer-generated hologram using run-length encoding based recurrence relation.

    Science.gov (United States)

    Nishitsuji, Takashi; Shimobaba, Tomoyoshi; Kakue, Takashi; Ito, Tomoyoshi

    2015-04-20

    Computer-Generated Holograms (CGHs) can be generated by superimposing zoneplates. A zoneplate is a grating that can concentrate an incident light into a point. Since a zoneplate has a circular symmetry, we reported an algorithm that rapidly generates a zoneplate by drawing concentric circles using computer graphic techniques. However, random memory access was required in the algorithm and resulted in degradation of the computational efficiency. In this study, we propose a fast CGH generation algorithm without random memory access using run-length encoding (RLE) based recurrence relation. As a result, we succeeded in improving the calculation time by 88%, compared with that of the previous work.

  7. XPLANE, a Generative Computer Aided Process Planning System for Part Manufacturing

    NARCIS (Netherlands)

    Erve, van 't A.H.

    1986-01-01

    This paper reports on the development of XPLANE, a generative computer aided process planning system for part manufacturing. Described is its position and functioning as a part of a more extended computer aided manufacturing system that includes a link to CAD systems, as well as systems for computer

  8. GenOVa: a computer program to generate orientational variants

    OpenAIRE

    Cayron, Cyril

    2007-01-01

    A computer program called GenOVa, written in Python, calculates the orientational variants, the operators (special types of misorientations between variants) and the composition table associated with a groupoid structure. The variants can be represented by three-dimensional shapes or by pole figures.

  9. International Conference on Numerical Grid Generation in Computational Fluid Dynamics

    Science.gov (United States)

    1989-04-30

    Grun Convex Computer Corporation Brunnenstr. 17 701 Piano Road 8049 Bachenhausen Richardson Germany TX 75081 Chunyuan Gu J. E.Holcomb Dept. of Gas...Lab System Dynamics Inc. L-95, PO Box 808 1211 N.W. 10th Avenue Livermore, CA 94550 Gainesville FL 32601 Bernadette Palmero Azine Renzo Universite de

  10. Computer-Generated, Three-Dimensional Character Animation.

    Science.gov (United States)

    Van Baerle, Susan Lynn

    This master's thesis begins by discussing the differences between 3-D computer animation of solid three-dimensional, or monolithic, objects, and the animation of characters, i.e., collections of movable parts with soft pliable surfaces. Principles from two-dimensional character animation that can be transferred to three-dimensional character…

  11. A Computational Differential Geometry Approach to Grid Generation

    CERN Document Server

    Liseikin, Vladimir D

    2007-01-01

    The process of breaking up a physical domain into smaller sub-domains, known as meshing, facilitates the numerical solution of partial differential equations used to simulate physical systems. This monograph gives a detailed treatment of applications of geometric methods to advanced grid technology. It focuses on and describes a comprehensive approach based on the numerical solution of inverted Beltramian and diffusion equations with respect to monitor metrics for generating both structured and unstructured grids in domains and on surfaces. In this second edition the author takes a more detailed and practice-oriented approach towards explaining how to implement the method by: Employing geometric and numerical analyses of monitor metrics as the basis for developing efficient tools for controlling grid properties. Describing new grid generation codes based on finite differences for generating both structured and unstructured surface and domain grids. Providing examples of applications of the codes to the genera...

  12. Computer program for automatic generation of BWR control rod patterns

    Energy Technology Data Exchange (ETDEWEB)

    Taner, M.S.; Levine, S.H.; Hsia, M.Y. (Pennsylvania State Univ., University Park (United States))

    1990-01-01

    A computer program named OCTOPUS has been developed to automatically determine a control rod pattern that approximates some desired target power distribution as closely as possible without violating any thermal safety or reactor criticality constraints. The program OCTOPUS performs a semi-optimization task based on the method of approximation programming (MAP) to develop control rod patterns. The SIMULATE-E code is used to determine the nucleonic characteristics of the reactor core state.

  13. Photodeposited diffractive optical elements of computer generated masks

    Energy Technology Data Exchange (ETDEWEB)

    Mirchin, N. [Electrical and Electronics Engineering Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel)]. E-mail: mirchin@hait.ac.il; Peled, A. [Electrical and Electronics Engineering Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel); Baal-Zedaka, I. [Electrical and Electronics Engineering Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel); Margolin, R. [Electrical and Electronics Engineering Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel); Zagon, M. [Electrical and Electronics Engineering Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel); Lapsker, I. [Physics Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel); Verdyan, A. [Physics Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel); Azoulay, J. [Physics Department, Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102 (Israel)

    2005-07-30

    Diffractive optical elements (DOE) were synthesized on plastic substrates using the photodeposition (PD) technique by depositing amorphous selenium (a-Se) films with argon lasers and UV spectra light. The thin films were deposited typically onto polymethylmethacrylate (PMMA) substrates at room temperature. Scanned beam and contact mask modes were employed using computer-designed DOE lenses. Optical and electron micrographs characterize the surface details. The films were typically 200 nm thick.

  14. Photodeposited diffractive optical elements of computer generated masks

    Science.gov (United States)

    Mirchin, N.; Peled, A.; Baal-Zedaka, I.; Margolin, R.; Zagon, M.; Lapsker, I.; Verdyan, A.; Azoulay, J.

    2005-07-01

    Diffractive optical elements (DOE) were synthesized on plastic substrates using the photodeposition (PD) technique by depositing amorphous selenium (a-Se) films with argon lasers and UV spectra light. The thin films were deposited typically onto polymethylmethacrylate (PMMA) substrates at room temperature. Scanned beam and contact mask modes were employed using computer-designed DOE lenses. Optical and electron micrographs characterize the surface details. The films were typically 200 nm thick.

  15. 3D computer generated medical holograms using spatial light modulators

    OpenAIRE

    Ahmed Sheet; Mai El Sayed; Mai Maged; Mona Ismail; Mariam Ali; Nahed Hussien Solouma; Tarek Abdel-Mottleb

    2014-01-01

    The aim of this work is to electronically generate the diffraction patterns of medical images and then trying to optically reconstruct the corresponding holographs to be displayed in space. This method is proposed in a trial to find a smart alternative of the expensive and perishable recording plates.

  16. Generation of a Reconfigurable Logical Cell Using Evolutionary Computation

    Directory of Open Access Journals (Sweden)

    I. Campos-Cantón

    2013-01-01

    Full Text Available In nature, an interesting topic is about how a cell can be reconfigured in order to achieve a different task. Another interesting topic is about the learning process that seems to be a trial and error process. In this work, we present mechanisms about how to produce a reconfigurable logical cell based on the tent map. The reconfiguration is realized by modifying its internal parameters generating several logical functions in the same structure. The logical cell is built with three blocks: the initial condition generating function, the tent map, and the output function. Furthermore, we propose a reconfigurable structure based on a chaotic system and an evolutionary algorithm is used in order to tune the parameters of the cell via trial and error process.

  17. Automatic Generation of Very Efficient Programs by Generalized Partial Computation

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Generalized Partial Computation (GPC) is a program transformationmethod utilizi ng partial information about input data, properties of auxiliary functions and t he logical structure of a source program. GPC uses both an inference engine such as a theorem prover and a classical partial evaluator to optimize programs. The refore, GPC is more powerful than classical partial evaluators but harder to imp lement and control. We have implemented an experimental GPC system called WSDFU (Waseda Simplify-Distribute-Fold-Unfold). This paper discusses the power of t he program transformation system, its theorem prover and future works.

  18. Hydrodynamic Computations of Pressures Generated by Steam Pipe Rupture

    Science.gov (United States)

    1981-02-23

    Compressible Flow Problems," J. Comput. Phys. 1, pp 87-118, 1966. *Until now, this code was called TUTTI, However, this is also the name of a Los...the "nozzle" cross section (Figure 8). This effect is the familiar vena contracta of incompressible flow and is knowvn tc occur for compressible flow ... Lapple , C. E., "Discharge Coefficients of Small-Piamreter Orifices and Flow Nozzles," Trans. ASME, pp 639-647, Jul 1951. llArnberg, G. T., "Review of

  19. Robot Control Through Brain Computer Interface For Patterns Generation

    Science.gov (United States)

    Belluomo, P.; Bucolo, M.; Fortuna, L.; Frasca, M.

    2011-09-01

    A Brain Computer Interface (BCI) system processes and translates neuronal signals, that mainly comes from EEG instruments, into commands for controlling electronic devices. This system can allow people with motor disabilities to control external devices through the real-time modulation of their brain waves. In this context an EEG-based BCI system that allows creative luminous artistic representations is here presented. The system that has been designed and realized in our laboratory interfaces the BCI2000 platform performing real-time analysis of EEG signals with a couple of moving luminescent twin robots. Experiments are also presented.

  20. "Simulated molecular evolution" or computer-generated artifacts?

    OpenAIRE

    1994-01-01

    1. The authors define a function with value 1 for the positive examples and 0 for the negative ones. They fit a continuous function but do not deal at all with the error margin of the fit, which is almost as large as the function values they compute. 2. The term "quality" for the value of the fitted function gives the impression that some biological significance is associated with values of the fitted function strictly between 0 and 1, but there is no justification for this kind of interpreta...

  1. A distributed computing tool for generating neural simulation databases.

    Science.gov (United States)

    Calin-Jageman, Robert J; Katz, Paul S

    2006-12-01

    After developing a model neuron or network, it is important to systematically explore its behavior across a wide range of parameter values or experimental conditions, or both. However, compiling a very large set of simulation runs is challenging because it typically requires both access to and expertise with high-performance computing facilities. To lower the barrier for large-scale model analysis, we have developed NeuronPM, a client/server application that creates a "screen-saver" cluster for running simulations in NEURON (Hines & Carnevale, 1997). NeuronPM provides a user-friendly way to use existing computing resources to catalog the performance of a neural simulation across a wide range of parameter values and experimental conditions. The NeuronPM client is a Windows-based screen saver, and the NeuronPM server can be hosted on any Apache/PHP/MySQL server. During idle time, the client retrieves model files and work assignments from the server, invokes NEURON to run the simulation, and returns results to the server. Administrative panels make it simple to upload model files, define the parameters and conditions to vary, and then monitor client status and work progress. NeuronPM is open-source freeware and is available for download at http://neuronpm.homeip.net . It is a useful entry-level tool for systematically analyzing complex neuron and network simulations.

  2. Integrated Nanophotonic Silicon Devices for Next Generation Computing Chips

    Science.gov (United States)

    Djordjevic, Stevan

    Development of the computing platform of the future depends largely on high bandwidth interconnects at intra-die level. Silicon photonics, as an innately CMOS compatible technology, is a promising candidate for delivering terabit per second bandwidths through the use of wavelength division multiplex (WDM) signaling. Silicon photonic interconnects offer unmatched bandwidth, density, energy efficiency, latency and reach, compared with the electrical interconnects. WDM silicon photonic links are viewed today as a promising solution for resolving the inter/intra-chip communication bottlenecks for high performance computing systems. Towards its maturity, silicon photonic technology has to resolve the issues of waveguide propagation loss, density of device integration, thermal stability of resonant devices, heterogeneous integration of various materials and many other problems. This dissertation describes the development of integrated photonic technology on silicon and silicon nitride platforms in the increased order of device complexity, from the fabrication process of low loss waveguides and efficient off-chip coupling devices, to the die-size reconfigurable lattice filters for optical signal processing. Particular emphasis of the dissertation is on the demonstration of CMOS-compatible, athermal silicon ring modulators that potentially hold the key to solving the thermal problem of silicon photonic devices. The development of high quality amorphous titanium dioxide films with negative thermo-optic coefficient enabled the fabrication of gigahertz-bandwidth silicon ring modulators that can be made insensitive to ambient temperature changes.

  3. Computer Analysis of 400 HZ Aircraft Electrical Generator Test Data.

    Science.gov (United States)

    1980-06-01

    7 D-AIO0 705 AIR FORCE INST OF TECH WRIGHT-PATTERSON AlS OH SCHOO-CTC F/ /2 AOMPUTER ANALYSIS OF 400 HZ AIRCRAFT ELECTRICAL GEERATOR TES JUN 80 P G...software system to analyze the data available from the Generator-Test Facility. I - -- - --- - - - - -- I, 0 Co 4.3 CO COm- I : W z I 40 g(2) • 10 4 E- c...triangles. Figure 4 presents the basis for the following linear inter- polation used to estimate time of zero crossover. Z T = ___- (T 2-T 1 ) + T1(4

  4. Some Efficient Random Number Generators for Micro Computers.

    Science.gov (United States)

    1983-09-01

    bytt:bytel; CONST 1IKLT z 1221; ( other good values are: 2937, 393, 4199, 4293,) b5in ( 9237,14789,15125,17245) seed.int : MULT I sed.int +; Rlyte...Ili](B) Z ..X ....... X ........ x ........ S A * *-------- Figure I: Relationship betueen bits in a Tausuorthe sequence. Here B) is defined as a...Ii]c )R od@ -----------------------------I *here li] = the i-th number produced by the generator. Ii+I] the (i41)-th number produced by the geerator

  5. Multimodal Stereoscopic Movie Summarization Conforming to Narrative Characteristics.

    Science.gov (United States)

    Mademlis, Ioannis; Tefas, Anastasios; Nikolaidis, Nikos; Pitas, Ioannis

    2016-10-05

    Video summarization is a timely and rapidly developing research field with broad commercial interest, due to the increasing availability of massive video data. Relevant algorithms face the challenge of needing to achieve a careful balance between summary compactness, enjoyability and content coverage. The specific case of stereoscopic 3D theatrical films has become more important over the past years, but not received corresponding research attention. In the present work, a multi-stage, multimodal summarization process for such stereoscopic movies is proposed, that is able to extract a short, representative video skim conforming to narrative characteristics from a 3D film. At the initial stage, a novel, low-level video frame description method is introduced (Frame Moments Descriptor, or FMoD), that compactly captures informative image statistics from luminance, color, optical flow and stereoscopic disparity video data, both in a global and in a local scale. Thus, scene texture, illumination, motion and geometry properties may succinctly be contained within a single frame feature descriptor, which can subsequently be employed as a building block in any key-frame extraction scheme, e.g., for intra-shot frame clustering. The computed key-frames are then used to construct a movie summary in the form of a video skim, which is post-processed in a manner that also takes into account the audio modality. The next stage of the proposed summarization pipeline essentially performs shot pruning, controlled by a userprovided shot retention parameter, that removes segments from the skim based on the narrative prominence of movie characters in both the visual and the audio modalities. This novel process (Multimodal Shot Pruning, or MSP) is algebraically modelled as a multimodal matrix Column Subset Selection Problem, which is solved using an evolutionary computing approach. Subsequently, disorienting editing effects induced by summarization are dealt with, through manipulation of

  6. A comprehensive approach to decipher biological computation to achieve next generation high-performance exascale computing.

    Energy Technology Data Exchange (ETDEWEB)

    James, Conrad D.; Schiess, Adrian B.; Howell, Jamie; Baca, Michael J.; Partridge, L. Donald; Finnegan, Patrick Sean; Wolfley, Steven L.; Dagel, Daryl James; Spahn, Olga Blum; Harper, Jason C.; Pohl, Kenneth Roy; Mickel, Patrick R.; Lohn, Andrew; Marinella, Matthew

    2013-10-01

    The human brain (volume=1200cm3) consumes 20W and is capable of performing > 10^16 operations/s. Current supercomputer technology has reached 1015 operations/s, yet it requires 1500m^3 and 3MW, giving the brain a 10^12 advantage in operations/s/W/cm^3. Thus, to reach exascale computation, two achievements are required: 1) improved understanding of computation in biological tissue, and 2) a paradigm shift towards neuromorphic computing where hardware circuits mimic properties of neural tissue. To address 1), we will interrogate corticostriatal networks in mouse brain tissue slices, specifically with regard to their frequency filtering capabilities as a function of input stimulus. To address 2), we will instantiate biological computing characteristics such as multi-bit storage into hardware devices with future computational and memory applications. Resistive memory devices will be modeled, designed, and fabricated in the MESA facility in consultation with our internal and external collaborators.

  7. Cloud Computing Infusion for Generating ESDRs of Visible Spectra Radiances

    Science.gov (United States)

    Golpayegani, N.; Halem, M.; Nguyen, P.

    2008-12-01

    The AIRS and AVHRR instruments have been collecting radiances of the Earth in the visible spectrum for over 25 years. These measurements have been used to develop such useful products as NDVI, Snow cover and depth, Outgoing long wave radiation and other products. Yet, no long-term data record of the level 1b visible spectra is available in a grid form to researchers for various climate studies. We present here an Earth System Data Record observed in the visible spectrum as gridded radiance fields of 8kmx10km grid resolution for the six years in the case of AIRS and from 1981 to the present for AVHRR. The AIRS data has four visible channels from 0.41μm to 0.94μm with an IFOV of 1 km and AVHRR has two visible channels in the 0.58μm to 1.00μm range also at 1 km. In order to process such large amounts of data on demand, two components need to be implemented,(i) a processing system capable of gridding TBs of data in a reasonable amount of time and (ii) a download mechanism to access and deliver the data to the processing system. We implemented a cloud computing approach to be able to process such large amounts of data. We use Hadoop, a distributed computation system developed by the Apache Software Foundation. With Hadoop, we are able to store the data in a distributed fashion, taking advantage of Hadoop's distributed file system (dfs). We also take advantage of Hadoop's MapReduce functionality to perform as much computations as is possible on available nodes of the UMBC bluegrit Cell cluster system that contain the data. We make use of the SOAR system developed under the ACCESS program to acquire and process the AIRS and AVHRR observations. Comparisons of the AIRS data witth selected periods of MODIS visible spectral channels on the same sattelite indicate the two instruments have maintained calibration consistency and continuity of their measurements over the six year period. Our download mechanism transfers the data from these instruments into hadoop's dfs. Our

  8. Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology (Final Report)

    Science.gov (United States)

    EPA announced the release of the final report, Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology. This report describes new approaches that are faster, less resource intensive, and more robust that can help ...

  9. Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology (Final Report)

    Science.gov (United States)

    EPA announced the release of the final report, Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology. This report describes new approaches that are faster, less resource intensive, and more robust that can help ...

  10. The comparative effect of individually-generated vs. collaboratively-generated computer-based concept mapping on science concept learning

    Science.gov (United States)

    Kwon, So Young

    Using a quasi-experimental design, the researcher investigated the comparative effects of individually-generated and collaboratively-generated computer-based concept mapping on middle school science concept learning. Qualitative data were analyzed to explain quantitative findings. One hundred sixty-one students (74 boys and 87 girls) in eight, seventh grade science classes at a middle school in Southeast Texas completed the entire study. Using prior science performance scores to assure equivalence of student achievement across groups, the researcher assigned the teacher's classes to one of the three experimental groups. The independent variable, group, consisted of three levels: 40 students in a control group, 59 students trained to individually generate concept maps on computers, and 62 students trained to collaboratively generate concept maps on computers. The dependent variables were science concept learning as demonstrated by comprehension test scores, and quality of concept maps created by students in experimental groups as demonstrated by rubric scores. Students in the experimental groups received concept mapping training and used their newly acquired concept mapping skills to individually or collaboratively construct computer-based concept maps during study time. The control group, the individually-generated concept mapping group, and the collaboratively-generated concept mapping group had equivalent learning experiences for 50 minutes during five days, excepting that students in a control group worked independently without concept mapping activities, students in the individual group worked individually to construct concept maps, and students in the collaborative group worked collaboratively to construct concept maps during their study time. Both collaboratively and individually generated computer-based concept mapping had a positive effect on seventh grade middle school science concept learning but neither strategy was more effective than the other. However

  11. Brain-computer interface based on generation of visual images.

    Directory of Open Access Journals (Sweden)

    Pavel Bobrov

    Full Text Available This paper examines the task of recognizing EEG patterns that correspond to performing three mental tasks: relaxation and imagining of two types of pictures: faces and houses. The experiments were performed using two EEG headsets: BrainProducts ActiCap and Emotiv EPOC. The Emotiv headset becomes widely used in consumer BCI application allowing for conducting large-scale EEG experiments in the future. Since classification accuracy significantly exceeded the level of random classification during the first three days of the experiment with EPOC headset, a control experiment was performed on the fourth day using ActiCap. The control experiment has shown that utilization of high-quality research equipment can enhance classification accuracy (up to 68% in some subjects and that the accuracy is independent of the presence of EEG artifacts related to blinking and eye movement. This study also shows that computationally-inexpensive bayesian classifier based on covariance matrix analysis yields similar classification accuracy in this problem as a more sophisticated Multi-class Common Spatial Patterns (MCSP classifier.

  12. Listeners discern affective variation in computer-generated musical sounds.

    Science.gov (United States)

    Bailes, Freya; Dean, Roger T

    2009-01-01

    We carried out two experiments to test the relationship between real-time perception of structural change in stylistically unusual musical sounds, and perception of its affect (arousal and valence). Computer music was used because of its unfamiliarity and our capacity to control it in ecologically appropriate ways. In experiment 1, thirteen participants unselected for musical training participated in tasks to detect segmentation and changes in affect. Changes in affect occurred upon detection of segmentation; but not all algorithmically distinct segments conveyed distinct affect. Short segments followed by long segments led to greater changes in arousal and valence at the point of segmentation than vice versa. In experiment 2, intra-segment sound transitions were introduced. Sixteen musicians performed the same affect task as in experiment 1, and a novel change in sound task. Participants were slow to respond to a continuous transition, but quick to respond to instantaneous transitions. Contrary to literature on the perception of affect in more familiar music, the musician participants in experiment 2 differed more in their ratings of arousal than of valence, in spite of a strong correlation of arousal with the composition of the stimuli. These findings are discussed in relation to the positive valence attributed to the more familiar sounds in both experiments.

  13. THE DEPICTION OF HOMOSEXUALITY IN AMERICAN MOVIES

    Directory of Open Access Journals (Sweden)

    Rudy

    2016-02-01

    Full Text Available This study focuses on the depiction of homosexuality in American films. It is intended to identify the images of gays depicted in American films as well as the characteristics of American gay movies. It incorporates library research by applying an analytical descriptive approach in analyzing the data. The symbol and reflective theory is used to analyze 18 American movies and 14 gay films from other countries in the early 2000s. It shows that gay films can attract audiences by describing gays as the objects for laughs; gays revealing their sexual identities; sexual scenes of gays; masculine gay men; and violence in gay life. They appear in genres like drama, comedy, romance, detective, western, and horror/mystery with two images of gay people shown in American gay movies; they are the portrait of gays as a minority and the pessimism. However, it also shows that some American gay films picture good gay life, happy gay couples, gay marriage, etc.

  14. The evolving perception of controversial movies

    CERN Document Server

    Amendola, Luca; Quartin, Miguel

    2015-01-01

    Polarization of opinion is an important feature of public debate on political, social and cultural topics. The availability of large internet databases of users' ratings has permitted quantitative analysis of polarization trends-for instance, previous studies have included analyses of controversial topics on Wikipedia, as well as the relationship between online reviews and a product's perceived quality. Here, we study the dynamics of polarization in the movie ratings collected by the Internet Movie database (IMDb) website in relation to films produced over the period 1915-2015. We define two statistical indexes, dubbed hard and soft controversiality, which quantify polarized and uniform rating distributions, respectively. We find that controversy decreases with popularity and that hard controversy is relatively rare. Our findings also suggest that more recent movies are more controversial than older ones and we detect a trend of "convergence to the mainstream" with a time scale of roughly 40-50 years. This ph...

  15. Computational Analysis of Intersubject Variability and Thrombin Generation in Dilutional Coagulopathy

    Science.gov (United States)

    2012-11-01

    T R A N S F U S I O N P R A C T I C E Computational analysis of intersubject variability and thrombin generation in dilutional coagulopathy_3610 2475... intersubject variability. STUDY DESIGN AND METHODS: A thoroughly vali- dated computational model was used to simulate throm- bin generation curves for 472...parameters in diluted blood plasma displayed significant intersubject variabil- ity (with a coefficient of variation up to approx. 28%). Nevertheless

  16. 诗化与纪实的融合——对第四代导演电影美学风格的再界定%Integration of Poeticizing and Documentary--Redefinition of the Aesthetic Style of the Fourth Generation Directors' Movies

    Institute of Scientific and Technical Information of China (English)

    董广

    2012-01-01

    通过对电影稳定性与多样性美学风格形成原因及纪实美学风格形成的分析,指出第四代导演的影片更多的是寻找和挖掘历史底蕴,反映和记录现实社会生活,捕捉和表现历史与现实、民族文化与现代意识的融合点,呼唤和推崇人道主义复归。他们的美学风格并不仅仅是学界一般认定的纪实美学,更确切地说,这种纪实美学又往往带有淡淡的诗化美学风格。无论从平民意识还是文艺批判视角看,其美学风格都应界定为“诗化与纪实的融合”。%Analyzing the cause of movies' stability and various aesthetic style as well as the formation of the documen- tary aesthetic style, this paper points out that the movies coming from the fourth generation directors concern more a- bout searching and digging for the beauty of history, about reflecting and recording real social life, about showing and presenting the integration of history and reality, national cultural and modem consciousness, and about appealing and praising the reversion of humanitarianism. Their aesthetic style is not merely the documentary aesthetics which is gen- erally affirmed by the academia, or to be exactly, it often possesses somewhat poeticized aesthetic style. Either from the perspective of the consciousness of common people or literary criticism, its aesthetic style should be defined as "an integration of poeticizing and documentary".

  17. The Effect of Computer-Generated Spoken Feedback on Kindergarten Students' Written Narratives.

    Science.gov (United States)

    Jones, Ithel

    1998-01-01

    Examined the extent to which kindergartners used computer speech during narrative writing and the relationship between this use and the linguistic properties of their written products. Found that length of text, grammatical cohesion, and lexical density were strongly associated with use of computer-generated spoken feedback. Narrative types and…

  18. Viewing movie smoking undermines antismoking parenting practices.

    Science.gov (United States)

    Sargent, James D; Hanewinkel, Reiner

    2008-01-01

    To test the hypothesis that viewing depictions of smoking in movies makes adolescents less responsive to parenting factors that prevent smoking. Cross-sectional survey of 4807 students (grades 5-8) through which we ascertained exposure to smoking in movies, parent smoking, and adolescents' perception of parental responsiveness (support), and parental demandingness (behavioral control). Adolescents attending randomly selected middle schools in the Northeastern U.S. ever tried smoking a cigarette. Exposure to movie smoking was ascertained by counting occurrences of tobacco use in 601 recent popular motion pictures; surveying students to identify films they had seen from a random subset of 50 films; and summing tobacco use occurrences for the films each adolescent reported seeing. We also measured adolescents' perceptions of parent smoking, parental responsiveness and demandingness. The overall prevalence of adolescent smoking was 17.4 percent. The prevalence of smoking increased with exposure to movie smoking (low vs. high exposure 8.8 vs. 25.8%, p Parenting factors associated with lower rates of adolescent smoking were parent non smoking status (11.0% vs. 27.7% for parents who smoke, p parental responsiveness (12.4% vs. 23.1% for low parental responsiveness, p Parenting factors were not strongly associated with exposure to movie smoking. For adolescents with low exposure to movie smoking the adjusted odds (95% confidence interval) of smoking were 0.31 (0.23, 0.42) if parents did not smoke, 0.57 (0.42, 0.78) if parents exerted high demandingness, and 0.52 (0.38, 0.71) if parents were highly responsive. Parents had significantly less influence for adolescents with high exposure to movie smoking, for whom the adjusted odds of smoking were only 0.50 if parents did not smoke (p = 0.014 for the interaction effect), 0.97 if parents exerted high demandingness (p = 0.007 for the interaction effect) and 0.73 if parents were highly responsive (p = 0.045 for the interaction

  19. Astronomy Popularization via Sci-fi Movies

    Science.gov (United States)

    Li, Qingkang

    2015-08-01

    It is astronomers’ duty to let more and more young people know a bit astronomy and be interested in astronomy and appreciate the beauty and great achievements in astronomy. One of the most effective methods to popularize astronomy to young people nowadays might be via enjoying some brilliant sci-fi movies related to astronomy with some guidance from astronomers. Firstly, we will introduce the basic information of our selective course “Appreciation of Sci-fi Movies in Astronomy” for the non-major astronomy students in our University, which is surely unique in China, then we will show its effect on astronomy popularization based on several rounds of teaching.

  20. Playing Sub-stories from Complex Movies

    Science.gov (United States)

    Respicio, Ana; Teixeira, Carlos

    Complex movies with different parallel lines of action, only intersecting in a small number of scenes, can be difficult to analyze. The present study sets out to provide the viewer with assisted automatic procedures designed to decompose and analyze the narrative from different possible perspectives. We propose a model for narrative decomposition, based on the interaction of characters. The production of a time-stamped screenplay is used to achieve movie annotation based on the screenplay's contents, providing information about scene boundaries and the action semantics therein. The analysis of the graph of main character relations enables the extraction of coherent sub-stories from the main narrative.

  1. Application of Domestication Theory in Translation of Movie Titles

    Institute of Scientific and Technical Information of China (English)

    王明亮; 刘智慧

    2011-01-01

    This thesis attempts to discuss Chinese and English movie titles translation from the perspective of domestication theory and concludes domestication translation can break through restricts at the linguistic level to convey the meaning and spirit of movie titles efficiently.

  2. Modeling Temporal Behavior of Awards Effect on Viewership of Movies

    KAUST Repository

    Altaf, Basmah

    2017-04-22

    The “rich get richer” effect is well-known in recommendation system. Popular items are recommended more, then purchased more, resulting in becoming even more popular over time. For example, we observe in Netflix data that awarded movies are more popular than non-awarded movies. Unlike other work focusing on making fair/neutralized recommendation, in this paper, we target on modeling the effect of awards on the viewership of movies. The main challenge of building such a model is that the effect on popularity changes over time with different intensity from movie to movie. Our proposed approach explicitly models the award effects for each movie and enables the recommendation system to provide a better ranked list of recommended movies. The results of an extensive empirical validation on Netflix and MovieLens data demonstrate the effectiveness of our model.

  3. Bewitched, Bothered, and Bored: Harry Potter, The Movie.

    Science.gov (United States)

    Nel, Philip

    2002-01-01

    Explores the Harry Potter phenomenon with college students in a university course. Compares the first book with the first movie. Presents an in-depth discussion of the movie and how it relates to the book. (SG)

  4. Bewitched, Bothered, and Bored: Harry Potter, The Movie.

    Science.gov (United States)

    Nel, Philip

    2002-01-01

    Explores the Harry Potter phenomenon with college students in a university course. Compares the first book with the first movie. Presents an in-depth discussion of the movie and how it relates to the book. (SG)

  5. Grid generation and compressible flow computations about a high-speed civil transport configuration

    Science.gov (United States)

    Abolhassani, J. S.; Stewart, J. E.; Farr, N.; Smith, R. E.; Kerr, P. W.; Everton, E. L.

    1991-01-01

    Techniques and software are discussed for generating grids about a high-speed civil transport configuration. The configuration is defined by a computer-aided design system in wing, fuselage, tail and engine-nacelle components. Grid topology and the surfaces outlining the blocks of the topology are computed with interactive software. The volume grid is computed using software based on transfinite interpolation and Lagrangian blending functions. Several volume grids for inviscid and viscous flow have been generated using this system of codes. Demonstration flowfields around this vehicle are described.

  6. The Western Cultural Infiltration of Hollywood Movies in China

    Institute of Scientific and Technical Information of China (English)

    刘畅

    2014-01-01

    With the development of society, Hol ywood movies become more and more popular among Chinese audience; it is undoubted that movie has become a cultural carrier that spreads different culture in the world. This paper aims at analyzing some typical features of Hol ywood Movies in China, and then focuses on discussing the positive effect and the negative influence embodied in Hol ywood Movies; final y, the author puts forward corresponding suggestions and countermeasures when we are faced with the cultural infiltration.

  7. Viewing the Disney Movie Frozen through a Psychodynamic Lens.

    Science.gov (United States)

    Kowalski, Christopher; Bhalla, Ruchi

    2015-10-14

    The Disney movie Frozen is the fifth highest grossing movie of all time. In order to better understand this phenomenon and to hypothesize as to why the movie resonated so strongly with audiences, we have interpreted the movie using psychodynamic theory. We pay particular attention to the themes of puberty, adolescence and sibling relationships and discuss examples of ego defenses that are employed by the lead character in relation to these concepts.

  8. Efficiency of using first-generation information during second-generation selection: results of computer simulation.

    Science.gov (United States)

    T.Z. Ye; K.J.S. Jayawickrama; G.R. Johnson

    2004-01-01

    BLUP (Best linear unbiased prediction) method has been widely used in forest tree improvement programs. Since one of the properties of BLUP is that related individuals contribute to the predictions of each other, it seems logical that integrating data from all generations and from all populations would improve both the precision and accuracy in predicting genetic...

  9. Application of a single-board computer as a low cost pulse generator

    CERN Document Server

    Fedrizzi, Marcus

    2015-01-01

    A BeagleBone Black (BBB) single-board open-source computer was implemented as a low-cost fully programmable pulse generator. The pulse generator makes use of the BBB Programmable Real-Time Unit (PRU) subsystem to achieve a deterministic temporal resolution of 5 ns, an RMS jitter of 290 ps and a timebase stability on the order of 10 ppm. A python based software framework has also been developed to simplify the usage of the pulse generator.

  10. Computationally generated velocity taper for efficiency enhancement in a coupled-cavity traveling-wave tube

    Science.gov (United States)

    Wilson, Jeffrey D.

    1989-01-01

    A computational routine has been created to generate velocity tapers for efficiency enhancement in coupled-cavity TWTs. Programmed into the NASA multidimensional large-signal coupled-cavity TWT computer code, the routine generates the gradually decreasing cavity periods required to maintain a prescribed relationship between the circuit phase velocity and the electron-bunch velocity. Computational results for several computer-generated tapers are compared to those for an existing coupled-cavity TWT with a three-step taper. Guidelines are developed for prescribing the bunch-phase profile to produce a taper for efficiency. The resulting taper provides a calculated RF efficiency 45 percent higher than the step taper at center frequency and at least 37 percent higher over the bandwidth.

  11. Photorefractive and computational holography in the experimental generation of Airy beams

    CERN Document Server

    Suarez, Rafael A B; Yepes, Indira S V; Gesualdi, Marcos R R

    2015-01-01

    In this paper, we present the experimental generation of Airy beams via computational and photorefractive holography. Experimental generation of Airy beams using conventional optical components presents several difficulties and are practically infeasible. Thus, the optical generation of Airy beams has been made from the optical reconstruction of a computer generated hologram implemented in a spatial light modulators. In the photorefractive holography technique, being used for the first time to our knowledge, the hologram of an Airy beam is constructed (recorded) and reconstructed (reading) optically in a nonlinear photorefractive medium. The Airy beam experimental realization was made by a setup of computational and photorefractive holography using a photorefractive Bi_{12}TiO_{20} crystal as holographic recording medium. Airy beams and Airy beam arrays were obtained experimentally as in accordance with the predicted theory; and present excellent prospects for applications in optical trapping and optical comm...

  12. Photorefractive and computational holography in the experimental generation of Airy beams

    Science.gov (United States)

    Suarez, Rafael A. B.; Vieira, Tarcio A.; Yepes, Indira S. V.; Gesualdi, Marcos R. R.

    2016-05-01

    In this paper, we present the experimental generation of Airy beams via computational and photorefractive holography. Experimental generation of Airy beams using conventional optical components presents several difficulties and a practically infeasible. Thus, the optical generation of Airy beams has been made from the optical reconstruction of a computer generated hologram implemented by a spatial light modulator. In the photorefractive holography technique, being used for the first time to our knowledge, the hologram of an Airy beam is constructed (recorded) and reconstructed (read) optically in a nonlinear photorefractive medium. The Airy beam experimental realization was made by a setup of computational and photorefractive holography using a photorefractive Bi12 TiO20 crystal as holographic recording medium. Airy beams and Airy beam arrays were obtained experimentally in accordance with the predicted theory; with excellent prospects for applications in optical trapping and optical communications systems.

  13. Rethinking of Instructional Short Movies and Videos: An Evaluation the Instructional Short Movie and Video Competition

    Directory of Open Access Journals (Sweden)

    Oktay AKBAŞ

    2015-04-01

    Full Text Available In this study; the short films and videos taking part in National Instructional Short Film and Video Contest held in Kırıkkale University are evaluated in terms of some variables such as; the departments of the teacher candidates, whether the product is video or film. Quantitative methods were used in the study. The research method of the study is descriptive method. Quantitative data was obtained by using Short Movie and Video Assessment Scale prepared by the researchers the rubric consists of four sub-titles, the usage of audio-visual elements, focusing the aims and objectives, selection and presentation of the content, taking target group into consideration. There are 20 items in the scale. Each item can be graded between 1 -10 and the arithmetic mean of the items gives the total point of the films. All of the 47 films taking part in the contest were evaluated. According to the results, these films and videos are graded as average. Besides this, there are no significant difference between instructional short film and videos in terms of technical aspects, content, aims and objectives; but for the target group/audience, videos are graded as more effective than short films. In addition, the scores of the instructional short films and videos prepared by the students in Department of Computer and Instructional Technologies are considerably higher than the other departments’ scores.

  14. eMovie: a storyboard-based tool for making molecular movies.

    Science.gov (United States)

    Hodis, Eran; Schreiber, Gideon; Rother, Kristian; Sussman, Joel L

    2007-05-01

    The 3D structures of macromolecules are difficult to grasp and also to communicate. By their nature, movies or animations are particularly useful for highlighting key features by offering a 'guided tour' of structures and conformation changes. However, high-quality movies are rarely seen because they are currently difficult and time consuming to make. By adopting the traditional movie 'storyboard' concept, which gives guidance and direction to filming, eMovie makes the creation of lengthy molecular animations much easier. This tool is a plug-in for the open-source molecular graphics program PyMOL, and enables experts and novices alike to produce informative and high-quality molecular animations.

  15. Patagonian road movies and migration from Wales

    Directory of Open Access Journals (Sweden)

    Esther Whitfield

    2013-12-01

    Full Text Available This paper analyzes two recent films, Patagonia (2011 and Separado! (2010, both produced in Wales and set in Patagonia. It proposes that both take advantage of the codes and tropes of the road movie genre, and of the history of Welsh emigration to Patagonia, to situate Welsh language and culture in both a local and global context.

  16. All-in-One Movie Book.

    Science.gov (United States)

    Petzold, Paul

    The amateur movie camera differs from a still camera on several important points. The author explores these differences and discusses the various ways they may be used to advantage. He describes in detail the workings of basic equipment--cameras, exposure meters, lenses, films, and lights--and demonstrates the proper use of each. Techniques such…

  17. The evolution of pace in popular movies.

    Science.gov (United States)

    Cutting, James E

    2016-01-01

    Movies have changed dramatically over the last 100 years. Several of these changes in popular English-language filmmaking practice are reflected in patterns of film style as distributed over the length of movies. In particular, arrangements of shot durations, motion, and luminance have altered and come to reflect aspects of the narrative form. Narrative form, on the other hand, appears to have been relatively unchanged over that time and is often characterized as having four more or less equal duration parts, sometimes called acts - setup, complication, development, and climax. The altered patterns in film style found here affect a movie's pace: increasing shot durations and decreasing motion in the setup, darkening across the complication and development followed by brightening across the climax, decreasing shot durations and increasing motion during the first part of the climax followed by increasing shot durations and decreasing motion at the end of the climax. Decreasing shot durations mean more cuts; more cuts mean potentially more saccades that drive attention; more motion also captures attention; and brighter and darker images are associated with positive and negative emotions. Coupled with narrative form, all of these may serve to increase the engagement of the movie viewer.

  18. Nordsøen Movie Maker

    DEFF Research Database (Denmark)

    2013-01-01

    oplevelser med legesyge sæler, susende hvirvelstrømme og gigantiske klumpfisk. Nordsøen Movie Maker giver filmen et ekstra virtuelt lag, og via augmented reality bliver der tilføjet seje og morsomme, animerede specialeffekter. 1) Download app’en 2) Find et moviespot ved ekspeditionsposterne i Nordsøen...

  19. Impacts of Captioned Movies on Listening Comprehension

    Directory of Open Access Journals (Sweden)

    Abusaied Janfaza

    2014-04-01

    Full Text Available With the advent of technology, the implication of authentic multimedia-based teaching materials are using widely in language classrooms. Technology can be in service of teaching different skills such as listening, reading, speaking and writing. Among these skills listening comprehension is a skill in which the learners have problems to master. Regarding this issue, utilizing captions for the education purposes has been a good motivation for conducting some research on the effects of captions of listening skills. However, it seems that there is a gap in the literature whether to use captioned movies in the classroom and whether they are effective in improving listening comprehension. Many studies have been conducted on this issue. However, their findings are conclusive. While some studies refer to the effectiveness of using captions, others revel that they are not so effective for improving the learner’s language skills. Hence, the present study is a review of the effects of captioned movies on the improvement of listening skill. In this case, the findings of this study can clarify the role of using captioned movies in improving the listening skill Keywords: captioned movie, technology, listening comprehension, instruction

  20. Piracy and Box Office Movie Revenues

    DEFF Research Database (Denmark)

    Peukert, Christian; Claussen, Jörg; Kretschmer, Tobias

    2017-01-01

    In this paper we evaluate the heterogeneous effects of online copyright enforcement. We ask whether the unexpected shutdown of the popular file hosting platform Megaupload had a differential effect on box office revenues of wide-release vs. niche movies. Identification comes from a comparison...

  1. Sharing without laws: an exploration of social practices and ad hoc labeling standards in online movie piracy

    Directory of Open Access Journals (Sweden)

    Roberto Tietzmann

    2016-06-01

    Full Text Available This paper discusses self-labelling standards as sharing mediators in pirated versions of movies available online. Piracy has existed since the beginning of the film industry, challenging established rules and regulations. The dynamics of digital movie piracy often try to meet viewers' expectations while ignoring any regional and premiere date restrictions. Movie piracy organises its abundant offer by generating a self-regulatory repertoire of labeling standards. In this paper we propose an exploration of social practices related to the ad hoc labeling standards as regulators of a presumed user experience in unofficial versions of the movie Captain America: The Winter Soldier. Lessons for sharing economy regulation, especially in contexts where chaotic social relationships are involved, are identified and discussed.

  2. Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media

    KAUST Repository

    Allen, Rebecca

    2017-02-13

    We compute effective properties (i.e., permeability, hydraulic tortuosity, and diffusive tortuosity) of three different digital porous media samples, including in-line array of uniform shapes, staggered-array of squares, and randomly distributed squares. The permeability and hydraulic tortuosity are computed by solving a set of rescaled Stokes equations obtained by homogenization, and the diffusive tortuosity is computed by solving a homogenization problem given for the effective diffusion coefficient that is inversely related to diffusive tortuosity. We find that hydraulic and diffusive tortuosity can be quantitatively different by up to a factor of ten in the same pore geometry, which indicates that these tortuosity terms cannot be used interchangeably. We also find that when a pore geometry is characterized by an anisotropic permeability, the diffusive tortuosity (and correspondingly the effective diffusion coefficient) can also be anisotropic. This finding has important implications for reservoir-scale modeling of flow and transport, as it is more realistic to account for the anisotropy of both the permeability and the effective diffusion coefficient.

  3. Making an outreach movie -The Puerto Rico Trench: Exploring the deepest place in the Atlantic Ocean

    Science.gov (United States)

    ten Brink, J.; ten Brink, U. S.

    2004-12-01

    A new movie will be screened that describes the exploration of the Puerto Rico trench with a multibeam echosounder and its significance to scientific research and tsunami hazard assessment. The movie audience is the general public including high school students. It aims to stimulate interest in Oceanography and to demonstrate scientific processes as they are applied in Geological Oceanography. The extensive use of 3-D visualization fly-bys over the dramatic ocean floor of the Puerto Rico trench should be particularly appealing to a generation growing up on video games and 3-D visualizations. The film is the product of close cooperation between a film maker and a scientist through all stages of its production and post production. This level of close cooperation is necessary because scientists' and film makers' approaches to presentation of information can differ greatly. In making an educational or outreach movie, the scientist must be responsible for the contents of the message, but the film maker has to design an effective delivery method. The creation of this movie was the result of following stages: (1) live action filming during a short research cruise; (2) generating 3-D fly-by using Fledermausr software; (3) rendering the fly-by sequences to a high-definition film; (4) collecting still photos and other supporting material; (5) generating graphs illustrating crucial scientific information and concepts; (6) preparing the script for voiceover narration; (7) working with a professional actor in order to ensure accurate delivery of the information. The biggest challenge in making the movie was the editing stage when the different elements of the movie were put together, incorporating music and voiceover into an aesthetically pleasing, interesting, and above all, scientifically accurate and coherent movie. Post-editing steps included replication of the master copy, package design, and distribution. The movie was completed in several weeks on a modest budget, thanks

  4. On Translating English Movie Titles into Chinese Introduction

    Institute of Scientific and Technical Information of China (English)

    王奥南

    2013-01-01

    Movie is an art and a commodity as well. With the opening of the Chinese market, we have more English movies. The translation of movie titles must be accurate and embody the commercial values. As the huge differences between two kinds of culture, language in the film titles translation, how to do to“faithfulness, expressiveness, elegance?”For various types of Eng⁃lish movie titles translation, several principles should be obeyed. After the analysis of the current problems and principles of transla⁃tion of English movie titles, the translation skills are summarized.

  5. The Aesthetic Taste of The Subtitle Translation in English Movies

    Institute of Scientific and Technical Information of China (English)

    LI Ping

    2016-01-01

    Nowadays foreign movies have been introduced in China overwhelmingly. As a worldwide and popularized art form, movie has rapidly grown to be a predominant carrier of popular culture, playing an important role in the communication of multi-national cultures. The main audiences of this inspiring art form are Chinese youths who are extremely passionate for new things, so it attaches great importance to them to build an active and optimistic mentality of watching movies. With the boom of movie industry, the subtitle translation in English movies has been lifted on a comparatively high position.

  6. Affective Video Retrieval: Violence Detection in Hollywood Movies by Large-Scale Segmental Feature Extraction

    OpenAIRE

    Florian Eyben; Felix Weninger; Nicolas Lehment; Björn Schuller; Gerhard Rigoll

    2013-01-01

    Without doubt general video and sound, as found in large multimedia archives, carry emotional information. Thus, audio and video retrieval by certain emotional categories or dimensions could play a central role for tomorrow's intelligent systems, enabling search for movies with a particular mood, computer aided scene and sound design in order to elicit certain emotions in the audience, etc. Yet, the lion's share of research in affective computing is exclusively focusing on signals conveyed by...

  7. Identification of natural images and computer-generated graphics based on statistical and textural features.

    Science.gov (United States)

    Peng, Fei; Li, Jiao-ting; Long, Min

    2015-03-01

    To discriminate the acquisition pipelines of digital images, a novel scheme for the identification of natural images and computer-generated graphics is proposed based on statistical and textural features. First, the differences between them are investigated from the view of statistics and texture, and 31 dimensions of feature are acquired for identification. Then, LIBSVM is used for the classification. Finally, the experimental results are presented. The results show that it can achieve an identification accuracy of 97.89% for computer-generated graphics, and an identification accuracy of 97.75% for natural images. The analyses also demonstrate the proposed method has excellent performance, compared with some existing methods based only on statistical features or other features. The method has a great potential to be implemented for the identification of natural images and computer-generated graphics. © 2014 American Academy of Forensic Sciences.

  8. Computer-generated slides: outdated technology or state-of-the-art presentation style?

    Science.gov (United States)

    Hinds, K F

    1998-01-01

    With the explosion of computerization, it appears that the business community is switching to computer-based presentations, projecting onto a screen directly from a computer, instead of the old standard of presenting with slides. However, the dental profession has been slow to follow. Although some speakers have switched to computer-based presentations, slides are still the standard in 1998. With the advent of numerous new computer software programs, clinicians are now able to generate highly sophisticated slides, that can be an equally powerful medium to communicate with the audience. Unfortunately, many clinicians are not taking advantage of the benefits of this technology. This article explains the simplicity of generating professional, high quality slides, reviews the major programs and equipment available to accomplish this task, and previews the multitude of applications this technology offers to practitioners as well as educators.

  9. Computer-generated holograms at arbitrary positions using multi-view images

    Science.gov (United States)

    Ohsawa, Yusuke; Sakamoto, Yuji

    2012-03-01

    Computer-generated holograms (CGHs), which are generated by simulating the recording process of a hologram in a computer, are noted as an ideal three-dimensional (3D) display technology. However, with CGHs it is necessary to create precise 3D model data based on objects that already exist, and it is difficult to do this. To solve this problem, there has been much research on generating CGHs using multi-view images (MVIs). MVIs make it possible to generate CGHs from real-existing objects in natural light. A method using ordinary digital cameras resulted in high-resolution reconstructed images without the need for any special devices, but with this method it is necessary to capture a huge number of images or to use a huge number of cameras to ensure a sufficient continuous motion parallax. This is simply not realistic for the construction of 3D display applications. In this paper, we describe a method of generating voxel models from captured images and then using the MVIs obtained by the models to generate CGHs. We generate voxel models by SFS, determine voxel value using the captured images, and render voxel models into MVIs. Using this method enables us to arrange holograms at arbitrary positions in the range in which MVIs are generated correctly. We can also obtain a sufficient continuous motion parallax by generating MVIs obtained from voxel models in spite of capturing only a small number of images. Results of optical experiments demonstrated the effectiveness of the proposed method.

  10. Hologravure as a computer-generated and laser engraved scratch hologram

    Science.gov (United States)

    Augier, Ángel G.; Sánchez, Raúl B.

    2011-01-01

    We presented "hologravure" as the generalization of a scratch hologram, generated by computer from a three-dimensional (3D) model by using an appropriate software, and laser-drawing with a conventional engraver-laser system. For making this type of computer-generated hologram, neither diffractive optics, nor mask pattern or photo-reduction of a transparency onto a high resolution film plate is needed. The shape of a 3D virtual object is encoded in a two-dimensional (2D) multiple circular-scratch drawing. A computer program was created for generating the holograms. Hologravures representing several 3D models are engraved on different materials, and the quality of the lines traced by the CO 2 laser is considered. Sheets of acrylic, polycarbonate, glass and thermo-resistant pieces of acetate were tested. Reconstructed images of all this computer-generated and laser engraved holograms and also of computer assisted and hand-drawn scratch holograms, synthesized by means of the same software are shown.

  11. Systemic functional grammar in natural language generation linguistic description and computational representation

    CERN Document Server

    Teich, Elke

    1999-01-01

    This volume deals with the computational application of systemic functional grammar (SFG) for natural language generation. In particular, it describes the implementation of a fragment of the grammar of German in the computational framework of KOMET-PENMAN for multilingual generation. The text also presents a specification of explicit well-formedness constraints on syntagmatic structure which are defined in the form of typed feature structures. It thus achieves a model of systemic functional grammar that unites both the strengths of systemics, such as stratification, functional diversification

  12. Acoustic project for installation of motor generator group by means of computer simulation

    Science.gov (United States)

    Ferreira, Jose C.; Zannin, Paulo T.

    2001-05-01

    This work presents an acoustical project for the installation of a motor generator group of electricity in a hotel by means of computer modeling. The noise levels at the site have been obtained without the motor generator group, and via the computer modeling it has been deduced how these levels would be after the installation of the equipment. A possible solution to mitigate the noise impact the equipment would cause on the neighborhood has been indicated, and it has been predicted how the impact would be reduced after the implantation of this solution.

  13. Computational Research Challenges and Opportunities for the Optimization of Fossil Energy Power Generation System

    Energy Technology Data Exchange (ETDEWEB)

    Zitney, S.E.

    2007-06-01

    Emerging fossil energy power generation systems must operate with unprecedented efficiency and near-zero emissions, while optimizing profitably amid cost fluctuations for raw materials, finished products, and energy. To help address these challenges, the fossil energy industry will have to rely increasingly on the use advanced computational tools for modeling and simulating complex process systems. In this paper, we present the computational research challenges and opportunities for the optimization of fossil energy power generation systems across the plant lifecycle from process synthesis and design to plant operations. We also look beyond the plant gates to discuss research challenges and opportunities for enterprise-wide optimization, including planning, scheduling, and supply chain technologies.

  14. Application of next generation sequencing to human gene fusion detection: computational tools, features and perspectives.

    Science.gov (United States)

    Wang, Qingguo; Xia, Junfeng; Jia, Peilin; Pao, William; Zhao, Zhongming

    2013-07-01

    Gene fusions are important genomic events in human cancer because their fusion gene products can drive the development of cancer and thus are potential prognostic tools or therapeutic targets in anti-cancer treatment. Major advancements have been made in computational approaches for fusion gene discovery over the past 3 years due to improvements and widespread applications of high-throughput next generation sequencing (NGS) technologies. To identify fusions from NGS data, existing methods typically leverage the strengths of both sequencing technologies and computational strategies. In this article, we review the NGS and computational features of existing methods for fusion gene detection and suggest directions for future development.

  15. Fast calculation method of computer-generated cylindrical hologram using wave-front recording surface.

    Science.gov (United States)

    Zhao, Yu; Piao, Mei-lan; Li, Gang; Kim, Nam

    2015-07-01

    Fast calculation method for a computer-generated cylindrical hologram (CGCH) is proposed. The method consists of two steps: the first step is a calculation of a virtual wave-front recording surface (WRS), which is located between the 3D object and CGCH. In the second step, in order to obtain a CGCH, we execute the diffraction calculation based on the fast Fourier transform (FFT) from the WRS to the CGCH, which are in the same concentric arrangement. The computational complexity is dramatically reduced in comparison with direct integration method. The simulation results confirm that our proposed method is able to improve the computational speed of CGCH.

  16. Simple and fast cosine approximation method for computer-generated hologram calculation.

    Science.gov (United States)

    Nishitsuji, Takashi; Shimobaba, Tomoyoshi; Kakue, Takashi; Arai, Daisuke; Ito, Tomoyoshi

    2015-12-14

    The cosine function is a heavy computational operation in computer-generated hologram (CGH) calculation; therefore, it is implemented by substitution methods such as a look-up table. However, the computational load and required memory space of such methods are still large. In this study, we propose a simple and fast cosine function approximation method for CGH calculation. As a result, we succeeded in creating CGH with sufficient quality and made the calculation time 1.6 times as fast at maximum compared to using the look-up table of the cosine function on CPU implementation.

  17. Removal of line artifacts on mesh boundary in computer generated hologram by mesh phase matching.

    Science.gov (United States)

    Park, Jae-Hyeung; Yeom, Han-Ju; Kim, Hee-Jae; Zhang, HuiJun; Li, BoNi; Ji, Yeong-Min; Kim, Sang-Hoo

    2015-03-23

    Mesh-based computer generated hologram enables realistic and efficient representation of three-dimensional scene. However, the dark line artifacts on the boundary between neighboring meshes are frequently observed, degrading the quality of the reconstruction. In this paper, we propose a simple technique to remove the dark line artifacts by matching the phase on the boundary of neighboring meshes. The feasibility of the proposed method is confirmed by the numerical and optical reconstruction of the generated hologram.

  18. Pontoon Bridge Hydrodynamic Computations by Multi-block Grid Generation Technique

    Institute of Scientific and Technical Information of China (English)

    PAN Xiao-qiang; SHEN Qing

    2006-01-01

    To investigate the hydrodynamic characteristic of pontoon bridge, the multi-block grid generation technique with numerical methods for viscous fluid dynamics is applied to numerical simulations on the hydrodynamic characteristic of a ribbon ferrying raft model at a series of towing speeds. Comparison of the simulated results with the experimental data indicates that the simulated results are acceptable. It shows that the multi-block grid generation technique is effective in the computation on pontoon bridge hydrodynamics.

  19. Population ageing policy reforms and endogenous growth in Japan: a computable overlapping generations approach

    OpenAIRE

    Shimasawa, Manabu

    2004-01-01

    We have developed a multi-period computable endogenous growth overlapping generations model generated by the accumulation of human capital. To study whether ageing itself and policy reform that aims to cope with aging make any quantitative impact through human capital formation on the Japanese economy, we simulate two policy change scenarios and compare the results of those with endogenous growth to those with exogenous growth. Three main results are obtained: (1) the human capital investment...

  20. DNA strand generation for DNA computing by using a multi-objective differential evolution algorithm.

    Science.gov (United States)

    Chaves-González, José M; Vega-Rodríguez, Miguel A

    2014-02-01

    In this paper, we use an adapted multi-objective version of the differential evolution (DE) metaheuristics for the design and generation of reliable DNA libraries that can be used for computation. DNA sequence design is a very relevant task in many recent research fields, e.g. nanotechnology or DNA computing. Specifically, DNA computing is a new computational model which uses DNA molecules as information storage and their possible biological interactions as processing operators. Therefore, the possible reactions and interactions among molecules must be strictly controlled to prevent incorrect computations. The design of reliable DNA libraries for bio-molecular computing is an NP-hard combinatorial problem which involves many heterogeneous and conflicting design criteria. For this reason, we modelled DNA sequence design as a multiobjective optimization problem and we solved it by using an adapted multi-objective version of DE metaheuristics. Seven different bio-chemical design criteria have been simultaneously considered to obtain high quality DNA sequences which are suitable for molecular computing. Furthermore, we have developed the multiobjective standard fast non-dominated sorting genetic algorithm (NSGA-II) in order to perform a formal comparative study by using multi-objective indicators. Additionally, we have also compared our results with other relevant results published in the literature. We conclude that our proposal is a promising approach which is able to generate reliable real-world DNA sequences that significantly improve other DNA libraries previously published in the literature.

  1. Disaster movies ed emozioni in emergenza

    Directory of Open Access Journals (Sweden)

    Fabio Sbattella

    2012-09-01

    Full Text Available This article aims to investigate the relationship between movie representation of disasters and sharing of emotions that have been experienced personally in real emergency situations. The theme is addressed in the first place referring to clinical observations and accounts of survivors, which explicitly use some images from specific films in their narratives. The hypothesis explored here is that the film genre known as disaster movie provides to individuals in distress in our culture some representations and symbolic tools which are useful to encode exceptional events and to cope with and share the emotions aroused by them. A thorough knowledge of the genre can therefore help to better listen, understand and support the narratives of the people who survived to serious emergencies and now need social legitimization and acceptation of their emotions.

  2. The English Movies and the English Learning

    Institute of Scientific and Technical Information of China (English)

    孔琳琳

    2014-01-01

    English learning has always been a big problem to Chinese learners. The learners pay much more attention to the vocabulary and the grammar. Acctually, they can hardly speak English as native speakers and never really understand the English because the real English environment doesn’t exist in our country in which English is only used as a foreign language. Then English movies provide the learners with what they need in English learning.

  3. Utilizing plasma physics to create biomolecular movies

    Energy Technology Data Exchange (ETDEWEB)

    Hau-Riege, S [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-07-24

    In spring of 2000, the LCLS Scientific Advisory Committee selected the top scientific experiments for LCLS. One of the proposed flagship experiments is atomic-resolution three-dimensional structure determination of isolated biolgical macromolecules and particles, with the ultimate goal of obtaining molecular (snapshot) movies. The key enabling insight was that radiation damage may be overcome by using x-ray pulses that are shorter than the time it takes for damage to manifest itself.

  4. Utilizing plasma physics to create biomolecular movies

    Energy Technology Data Exchange (ETDEWEB)

    Hau-Riege, S [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-07-24

    In spring of 2000, the LCLS Scientific Advisory Committee selected the top scientific experiments for LCLS. One of the proposed flagship experiments is atomic-resolution three-dimensional structure determination of isolated biolgical macromolecules and particles, with the ultimate goal of obtaining molecular (snapshot) movies. The key enabling insight was that radiation damage may be overcome by using x-ray pulses that are shorter than the time it takes for damage to manifest itself.

  5. Adapting History and Literature into Movies

    Directory of Open Access Journals (Sweden)

    John Dean

    2009-09-01

    Full Text Available This essay tries to offer an overview of adaptation, an initiation into this subject for the educated reader who is not a communications or film specialist. The essay will reference "The Social and Cultural Construction of Abraham Lincoln in U.S. Movies and on U.S. TV”—but mainly with an eye to the larger issue of cinematographic adaptation itself.

  6. Madness at the movies: prioritised movies for self-directed learning by medical students.

    Science.gov (United States)

    Wilson, Nick; Heath, Deb; Heath, Tim; Gallagher, Peter; Huthwaite, Mark

    2014-10-01

    We aimed to systematically compile a list of 10 movies to facilitate self-directed learning in psychiatry by medical students. The selected areas were those of the top five mental health conditions from the Global Burden of Disease 2010 study. The search strategy for movies covered an extensive range of sources (published literature and websites), followed by closer examination and critical viewing of a sample. Out of a total of 503 potential movies that were identified, 23 were selected for viewing and more detailed critique. The final top 10 were: for depressive and anxiety disorders: Ordinary People (1980), Silver Linings Playbook (2012); for illicit drug use: Trainspotting (1996), Winter's Bone (2010), Rachel Getting Married (2008), Half Nelson (2006); for alcohol use disorders: Another Year (2010), Passion Fish (1992); and for schizophrenia: The Devil and Daniel Johnston (2006), and An Angel at My Table (1990). The final selection of 10 movies all appeared to have relatively high entertainment value together with rich content in terms of psychiatric themes. Further research could evaluate the extent to which medical students actually watch such movies, by assessing the level of withdrawals from a medical school library and surveying student responses. © The Royal Australian and New Zealand College of Psychiatrists 2014.

  7. Highly Optimized Code Generation for Stencil Codes with Computation Reuse for GPUs

    Institute of Scientific and Technical Information of China (English)

    Wen-Jing Ma; Kan Gao; Guo-Ping Long

    2016-01-01

    Computation reuse is known as an effective optimization technique. However, due to the complexity of modern GPU architectures, there is yet not enough understanding regarding the intriguing implications of the interplay of compu-tation reuse and hardware specifics on application performance. In this paper, we propose an automatic code generator for a class of stencil codes with inherent computation reuse on GPUs. For such applications, the proper reuse of intermediate results, combined with careful register and on-chip local memory usage, has profound implications on performance. Current state of the art does not address this problem in depth, partially due to the lack of a good program representation that can expose all potential computation reuse. In this paper, we leverage the computation overlap graph (COG), a simple representation of data dependence and data reuse with “element view”, to expose potential reuse opportunities. Using COG, we propose a portable code generation and tuning framework for GPUs. Compared with current state-of-the-art code generators, our experimental results show up to 56.7%performance improvement on modern GPUs such as NVIDIA C2050.

  8. Measuring Stipple Aesthetics in Hand-Drawn and Computer-Generated Images

    NARCIS (Netherlands)

    Maciejewski, Ross; Isenberg, Tobias; Andrews, William M.; Ebert, David S.; Sousa, Mario Costa; Chen, Wei

    2008-01-01

    When people compare a computer-generated illustration to a hand-drawn illustration of the same object, they usually perceive differences. This seems to indicate that the two kinds of images follow different aesthetic principles. To explore and explain these differences, the authors compare texture s

  9. Infrared Testing of the Wide-field Infrared Survey Telescope Grism Using Computer Generated Holograms

    Science.gov (United States)

    Dominguez, Margaret Z.; Content, David A.; Gong, Qian; Griesmann, Ulf; Hagopian, John G.; Marx, Catherine T; Whipple, Arthur L.

    2017-01-01

    Infrared Computer Generated Holograms (CGHs) were designed, manufactured and used to measure the performance of the grism (grating prism) prototype which includes testing Diffractive Optical Elements (DOE). The grism in the Wide Field Infrared Survey Telescope (WFIRST) will allow the surveying of a large section of the sky to find bright galaxies.

  10. Realization of Fourier and Fresnel computer-generated holograpm based on MATLAB

    Science.gov (United States)

    Lin, GuoQiang; Ren, XueChang

    2016-10-01

    Computer-generated hologram(CGH) can encode the picture. The image, which equals the original object of traditional optics, can be divided into two parts. A portion of it encoding into Fourier computer generated hologram(CGH), while the remaining are coded into Fresnel computer generated hologram. So in the processing of information transmission, the possibility of being stolen details can be greatly reduced. When the image is coded into the Fourier CGH and Fresnel CGH and reached the receiving end, the original image should be obtained by the reconstruction of the two computer generated holograms. This article presents three important things. Firstly, it provides the recording and reconstruction - both of them consist of the holographic technique - of the source program of Fresnel CGH and Fourier CGH in MATLAB. MATLAB(Matrix Laboratory) is the abbreviation of Laboratory Matrix and commercial mathematical software produced by the United States company. Secondly, it isolates the original image and the conjugate image in regeneration of Fourier CGH by using all zero matrix. Even though the original image and the conjugate image can be separated, the two of them also prevent us to acquire the original message. For reserving the most important image, we should apply the window function to filter one of them. Finally, in the coding of Fourier CGH and Fresnel CGH, this passage describes several functions to decrease the noise of the original image which is encoded into program. The function can be available in Fourier CGH and Fresnel CGH.

  11. Generative computer simulation for parallel layout of multi-story row house cluster

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    This study has established the functions between the environmental conditions and the inhabitants’ preferences for multi-story row house cluster with parallel layout, based on the data from the questionnaires’ in Beijing. A program has been written with multi-agent system and generative computer simulation approaches. The emergence candidate layout plans can be referenced and chosen by architects.

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

    Science.gov (United States)

    Adler, Alfred; Thomas, Jean Jacques

    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…

  13. THIRD GENERATION COMPUTER CURRICULUM AND INNOVATIVE TEACHING METHODS AT EL CAMINO COLLEGE.

    Science.gov (United States)

    FEDRICK, ROBERT J.

    A 1967 QUESTIONNAIRE SURVEY IN THE EL CAMINO JUNIOR COLLEGE DISTRICT INDICATED THE EXISTENCE OF 115 COMPUTER SYSTEMS IN 64 COMPANIES, WITH A TREND TOWARD THIRD GENERATION SYSTEMS. WHILE UNIT RECORD SYSTEMS WERE USED IN ABOUT HALF OF THE COMPANIES SURVEYED, THEIR USE WAS DEEMPHASIZED, AND EMPLOYERS INDICATED NEED FOR TRAINING IN PROGRAMING,…

  14. COED Transactions, Vol. 8, No. 10, October 1976. The Computer Generation of Thermodynamic Phase Diagrams.

    Science.gov (United States)

    Jolls, Kenneth R.; And Others

    A technique is described for the generation of perspective views of three-dimensional models using computer graphics. The technique is applied to models of familiar thermodynamic phase diagrams and the results are presented for the ideal gas and van der Waals equations of state as well as the properties of liquid water and steam from the Steam…

  15. Generation of a suite of 3D computer-generated breast phantoms from a limited set of human subject data

    Energy Technology Data Exchange (ETDEWEB)

    Hsu, Christina M. L. [Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 and Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Palmeri, Mark L. [Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Segars, W. Paul [Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Veress, Alexander I. [Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195 (United States); Dobbins, James T. III [Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

    2013-04-15

    Purpose: The authors previously reported on a three-dimensional computer-generated breast phantom, based on empirical human image data, including a realistic finite-element based compression model that was capable of simulating multimodality imaging data. The computerized breast phantoms are a hybrid of two phantom generation techniques, combining empirical breast CT (bCT) data with flexible computer graphics techniques. However, to date, these phantoms have been based on single human subjects. In this paper, the authors report on a new method to generate multiple phantoms, simulating additional subjects from the limited set of original dedicated breast CT data. The authors developed an image morphing technique to construct new phantoms by gradually transitioning between two human subject datasets, with the potential to generate hundreds of additional pseudoindependent phantoms from the limited bCT cases. The authors conducted a preliminary subjective assessment with a limited number of observers (n= 4) to illustrate how realistic the simulated images generated with the pseudoindependent phantoms appeared. Methods: Several mesh-based geometric transformations were developed to generate distorted breast datasets from the original human subject data. Segmented bCT data from two different human subjects were used as the 'base' and 'target' for morphing. Several combinations of transformations were applied to morph between the 'base' and 'target' datasets such as changing the breast shape, rotating the glandular data, and changing the distribution of the glandular tissue. Following the morphing, regions of skin and fat were assigned to the morphed dataset in order to appropriately assign mechanical properties during the compression simulation. The resulting morphed breast was compressed using a finite element algorithm and simulated mammograms were generated using techniques described previously. Sixty-two simulated mammograms

  16. High speed image space parallel processing for computer-generated integral imaging system.

    Science.gov (United States)

    Kwon, Ki-Chul; Park, Chan; Erdenebat, Munkh-Uchral; Jeong, Ji-Seong; Choi, Jeong-Hun; Kim, Nam; Park, Jae-Hyeung; Lim, Young-Tae; Yoo, Kwan-Hee

    2012-01-16

    In an integral imaging display, the computer-generated integral imaging method has been widely used to create the elemental images from a given three-dimensional object data. Long processing time, however, has been problematic especially when the three-dimensional object data set or the number of the elemental lenses are large. In this paper, we propose an image space parallel processing method, which is implemented by using Open Computer Language (OpenCL) for rapid generation of the elemental images sets from large three-dimensional volume data. Using the proposed technique, it is possible to realize a real-time interactive integral imaging display system for 3D volume data constructed from computational tomography (CT) or magnetic resonance imaging (MRI) data.

  17. Computer-generated holograms using multiview images captured by a small number of sparsely arranged cameras.

    Science.gov (United States)

    Ohsawa, Yusuke; Yamaguchi, Kazuhiro; Ichikawa, Tsubasa; Sakamoto, Yuji

    2013-01-01

    Computer-generated holograms (CGHs) using multiview images (MVIs) are holograms generated with multiple ordinary cameras. This process typically requires a huge number of cameras arranged at high density. In this paper, we propose a method to improve CGH using MVIs that obtains the MVIs by using voxel models rather than cameras. In the proposed method the voxel model is generated using the shape-from-silhouette (SFS) technique. We perform SFS using a small number of cameras arranged sparsely to create voxel models of objects and then generate the required number of images from these models by volume rendering. This enables us to generate CGHs using MVIs with just a small number of sparsely arranged cameras. Moreover, the proposed method arrange CGHs using MVIs at arbitrary positions.

  18. On Movie Title Translation from the Perspective of Reception Aesthetics

    Institute of Scientific and Technical Information of China (English)

    张琼

    2014-01-01

    Movie is a popular art which occupies an important position in people’s leisure time. Movie title, as the most direct and accessible tool for audience to know about the movie, is very significant to attract audience into the cinema. Therefore, the translation of movie title cannot be ignored. However, due to the cultural differences in Chinese and English culture, the problem of movie title translation is obvious which needs to be paid attention to the translation and people working in movie industry. Traditional translation theory puts more emphasis on the important and authoritative status of original text and author. But this notion cannot satisfy the needs of movie title translation to the largest extent. Movie is not only a cultural and linguistic product, it also is a special commercial product. The ultimate objective of movie is to allure the audience into the cinema to watch and ap-preciate it in addition to provide the cultural information. Reception aesthetics, as a theory of literary criticism, gives priority to readers’role in literary understanding and interpretation. According to reception aesthetics, the horizon of expectation should be taken into consideration when the translation work begins to be done. Horizon of expectation is composed of the readers’or au-diences’ previous cultural norms, assumptions, and criteria in the source language and culture at a given time. Movie title, as a special text, is also understood and influenced by the audience’s horizon of expectation. Chinese audience, before they decide to watch a movie, are naturally harbor their horizon of expectation about the movie. They will form their judgment and assumptions about the genre, plot, story, background about the movie from the movie title. These kind of horizon of expectation will conse-quently influence their ultimate decision to watch the movie or not. Hence, in doing the movie title translation, the translator is supposed to keep the audience’s horizon of

  19. Depth compensating calculation method of computer-generated holograms using symmetry and similarity of zone plates

    Science.gov (United States)

    Wei, Hui; Gong, Guanghong; Li, Ni

    2017-10-01

    Computer-generated hologram (CGH) is a promising 3D display technology while it is challenged by heavy computation load and vast memory requirement. To solve these problems, a depth compensating CGH calculation method based on symmetry and similarity of zone plates is proposed and implemented on graphics processing unit (GPU). An improved LUT method is put forward to compute the distances between object points and hologram pixels in the XY direction. The concept of depth compensating factor is defined and used for calculating the holograms of points with different depth positions instead of layer-based methods. The proposed method is suitable for arbitrary sampling objects with lower memory usage and higher computational efficiency compared to other CGH methods. The effectiveness of the proposed method is validated by numerical and optical experiments.

  20. The Influence of Renaissance On Marvel Comics Movies

    Institute of Scientific and Technical Information of China (English)

    郭晨燕

    2016-01-01

    Nowadays, in the movie industry, marvel comics movies play an inevitable role, plenty of super heroes are becoming more and more popular to our spectators, such as:superman, Spider Man, Batman, lron Man, Captain America, Hulk, Thor even the alliances Fantastic 4, The Avengers, Guardians of The Galaxy and so on, and this kind of movies occupies a significant part in the movie market. So why people like the super stares so much? And what sort of national culture can we find in these mov-ies? This thesis concentrate on the questions l just mentioned, from the perspective of the renaissance, I will show you how and in what extent renaissance has influenced the marvel comics movies.

  1. The Representation Methods of Addiction in Iran’s Movies

    Directory of Open Access Journals (Sweden)

    M Soltani Gerd Faramarzi

    2014-11-01

    Full Text Available Objectives: The aim of research was answer to this question that movie after revolution how was represented matters of addicts and addiction? Method: For answering to question 33 movies made between 1360 till 1390 which main characters were addicts, studied by content analysis. Results: The results showed that in studied movies, addicts were men, bachelor, or divorced and majority of them were educated. Also, Heroin consumption was more that other narcotics in movies. Addicts’ personal home and his/her friends’ home were important places for consumption and friends were important narcotics preparators and they most important factor in initiate of consumption. On the other hand, divorce and child selling had the most frequency in movie. Family and friend groups were the most important factors in addiction and its etiology. Conclusion: The results showed that movies represented one kind of popular addiction study that overlapped with academic addiction study.

  2. Automatic movie skimming with story units via general tempo analysis

    Science.gov (United States)

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

    2003-12-01

    A skimming system for movie content exploration is proposed using story units extracted via general tempo analysis of audio and visual data. Quite a few schemes have been proposed to segment video data into shots with low-level features, yet the grouping of shots into meaningful units, called story units here, is important and challenging. In this work, we detect similar shots using key frames and include these similar shots as a node in the scene transition graph. Then, an importance measure is calculated based on the total length of each node. Finally, we select sinks and shots according to this measure. Based on these semantic shots, a meaningful skims can be successfully generated. Simulation results will be presented to show that the proposed video skimming scheme can preserve the essential and significant content of the original video data.

  3. Towards pattern generation and chaotic series prediction with photonic reservoir computers

    Science.gov (United States)

    Antonik, Piotr; Hermans, Michiel; Duport, François; Haelterman, Marc; Massar, Serge

    2016-03-01

    Reservoir Computing is a bio-inspired computing paradigm for processing time dependent signals that is particularly well suited for analog implementations. Our team has demonstrated several photonic reservoir computers with performance comparable to digital algorithms on a series of benchmark tasks such as channel equalisation and speech recognition. Recently, we showed that our opto-electronic reservoir computer could be trained online with a simple gradient descent algorithm programmed on an FPGA chip. This setup makes it in principle possible to feed the output signal back into the reservoir, and thus highly enrich the dynamics of the system. This will allow to tackle complex prediction tasks in hardware, such as pattern generation and chaotic and financial series prediction, which have so far only been studied in digital implementations. Here we report simulation results of our opto-electronic setup with an FPGA chip and output feedback applied to pattern generation and Mackey-Glass chaotic series prediction. The simulations take into account the major aspects of our experimental setup. We find that pattern generation can be easily implemented on the current setup with very good results. The Mackey-Glass series prediction task is more complex and requires a large reservoir and more elaborate training algorithm. With these adjustments promising result are obtained, and we now know what improvements are needed to match previously reported numerical results. These simulation results will serve as basis of comparison for experiments we will carry out in the coming months.

  4. Improve Student’s English Intonation by Dubbing English Movies

    Institute of Scientific and Technical Information of China (English)

    沈文燕

    2014-01-01

    In English learning, pronunciation is the most basic and important English ability, and intonation is the most important part in pronunciation. However, current English education does not pay enough attention to it. English movies, integrating script, picture and audio, vividly and intuitively embody the social culture and life at a certain time of English-speaking countries. English movies provide a vivid environment of English. Therefore, learning English through dubbing English movies is a good way to improve student's intonation.

  5. Fracture resistance of computer-aided design/computer-aided manufacturing-generated composite resin-based molar crowns.

    Science.gov (United States)

    Harada, Akio; Nakamura, Keisuke; Kanno, Taro; Inagaki, Ryoichi; Örtengren, Ulf; Niwano, Yoshimi; Sasaki, Keiichi; Egusa, Hiroshi

    2015-04-01

    The aim of this study was to investigate whether different fabrication processes, such as the computer-aided design/computer-aided manufacturing (CAD/CAM) system or the manual build-up technique, affect the fracture resistance of composite resin-based crowns. Lava Ultimate (LU), Estenia C&B (EC&B), and lithium disilicate glass-ceramic IPS e.max press (EMP) were used. Four types of molar crowns were fabricated: CAD/CAM-generated composite resin-based crowns (LU crowns); manually built-up monolayer composite resin-based crowns (EC&B-monolayer crowns); manually built-up layered composite resin-based crowns (EC&B-layered crowns); and EMP crowns. Each type of crown was cemented to dies and the fracture resistance was tested. EC&B-layered crowns showed significantly lower fracture resistance compared with LU and EMP crowns, although there was no significant difference in flexural strength or fracture toughness between LU and EC&B materials. Micro-computed tomography and fractographic analysis showed that decreased strength probably resulted from internal voids in the EC&B-layered crowns introduced by the layering process. There was no significant difference in fracture resistance among LU, EC&B-monolayer, and EMP crowns. Both types of composite resin-based crowns showed fracture loads of >2000 N, which is higher than the molar bite force. Therefore, CAD/CAM-generated crowns, without internal defects, may be applied to molar regions with sufficient fracture resistance. © 2015 Eur J Oral Sci.

  6. Optical image encryption based on binary Fourier transform computer-generated hologram and pixel scrambling technology

    Science.gov (United States)

    Wang, Yong-Ying; Wang, Yu-Rong; Wang, Yong; Li, Hui-Juan; Sun, Wen-Jia

    2007-07-01

    A new method of optical image encryption with binary Fourier transform computer-generated hologram (CGH) and pixel-scrambling technology is presented. In this method, the orders of the pixel scrambling, as well as the encrypted image, are used as the keys to decrypt the original image. Therefore, higher security is achieved. Furthermore, the encrypted image is binary, so it is easy to be fabricated and robust against noise and distortion. Computer simulation results are given to verify the feasibility of this method and its robustness against occlusion and additional noise.

  7. Single-Board-Computer-Based Traffic Generator for a Heterogeneous and Hybrid Smart Grid Communication Network

    Directory of Open Access Journals (Sweden)

    Do Nguyet Quang

    2014-02-01

    Full Text Available In smart grid communication implementation, network traffic pattern is one of the main factors that affect the system’s performance. Examining different traffic patterns in smart grid is therefore crucial when analyzing the network performance. Due to the heterogeneous and hybrid nature of smart grid, the type of traffic distribution in the network is still unknown. The traffic that popularly used for simulation and analysis no longer reflects the real traffic in a multi-technology and bi-directional communication system. Hence, in this study, a single-board computer is implemented as a traffic generator which can generate network traffic similar to those generated by various applications in the fully operational smart grid. By placing in a strategic and appropriate position, a collection of traffic generators allow network administrators to investigate and test the effect of heavy traffic on performance of smart grid communication system.

  8. Source Term Model for Vortex Generator Vanes in a Navier-Stokes Computer Code

    Science.gov (United States)

    Waithe, Kenrick A.

    2004-01-01

    A source term model for an array of vortex generators was implemented into a non-proprietary Navier-Stokes computer code, OVERFLOW. The source term models the side force created by a vortex generator vane. The model is obtained by introducing a side force to the momentum and energy equations that can adjust its strength automatically based on the local flow. The model was tested and calibrated by comparing data from numerical simulations and experiments of a single low profile vortex generator vane on a flat plate. In addition, the model was compared to experimental data of an S-duct with 22 co-rotating, low profile vortex generators. The source term model allowed a grid reduction of about seventy percent when compared with the numerical simulations performed on a fully gridded vortex generator on a flat plate without adversely affecting the development and capture of the vortex created. The source term model was able to predict the shape and size of the stream-wise vorticity and velocity contours very well when compared with both numerical simulations and experimental data. The peak vorticity and its location were also predicted very well when compared to numerical simulations and experimental data. The circulation predicted by the source term model matches the prediction of the numerical simulation. The source term model predicted the engine fan face distortion and total pressure recovery of the S-duct with 22 co-rotating vortex generators very well. The source term model allows a researcher to quickly investigate different locations of individual or a row of vortex generators. The researcher is able to conduct a preliminary investigation with minimal grid generation and computational time.

  9. Fast calculation of spherical computer generated hologram using spherical wave spectrum method.

    Science.gov (United States)

    Jackin, Boaz Jessie; Yatagai, Toyohiko

    2013-01-14

    A fast calculation method for computer generation of spherical holograms in proposed. This method is based on wave propagation defined in spectral domain and in spherical coordinates. The spherical wave spectrum and transfer function were derived from boundary value solutions to the scalar wave equation. It is a spectral propagation formula analogous to angular spectrum formula in cartesian coordinates. A numerical method to evaluate the derived formula is suggested, which uses only N(logN)2 operations for calculations on N sampling points. Simulation results are presented to verify the correctness of the proposed method. A spherical hologram for a spherical object was generated and reconstructed successfully using the proposed method.

  10. Sharp Focus on Film; A Brief Guide to Research on Movies and Movie People.

    Science.gov (United States)

    Smith, Phil; Sasse, Margo

    An attempt to increase individuals' sophistication in finding information about movies is made in this guide. Strategies to uncover reviews, criticism, biographies and other film data in the University of California at San Diego libraries are outlined. The first major section deals with approaches to the card catalog and suggests ways of getting…

  11. Hype, Hope, and Hit in Movies

    DEFF Research Database (Denmark)

    Dholakia, Nikhilesh; Turcan, Romeo V.

    2012-01-01

    This paper is part of an ongoing project to develop an interdisciplinary metatheory of bubbles, relevant to the contemporary era of globalization and rapid, technology-aided communication flows. Just in the first few years of the 21st century, several bubbles have appeared – the so-called dotcom ...... cultural field where relatively small bubbles may form. Movies represent a good arena to examine cultural bubbles on a scale that is not daunting, and where the hype-hope-hit dynamics can be observed more frequently than in most other settings....

  12. Automatic code generation in SPARK: Applications of computer algebra and compiler-compilers

    Energy Technology Data Exchange (ETDEWEB)

    Nataf, J.M.; Winkelmann, F.

    1992-09-01

    We show how computer algebra and compiler-compilers are used for automatic code generation in the Simulation Problem Analysis and Research Kernel (SPARK), an object oriented environment for modeling complex physical systems that can be described by differential-algebraic equations. After a brief overview of SPARK, we describe the use of computer algebra in SPARK`s symbolic interface, which generates solution code for equations that are entered in symbolic form. We also describe how the Lex/Yacc compiler-compiler is used to achieve important extensions to the SPARK simulation language, including parametrized macro objects and steady-state resetting of a dynamic simulation. The application of these methods to solving the partial differential equations for two-dimensional heat flow is illustrated.

  13. Automatic code generation in SPARK: Applications of computer algebra and compiler-compilers

    Energy Technology Data Exchange (ETDEWEB)

    Nataf, J.M.; Winkelmann, F.

    1992-09-01

    We show how computer algebra and compiler-compilers are used for automatic code generation in the Simulation Problem Analysis and Research Kernel (SPARK), an object oriented environment for modeling complex physical systems that can be described by differential-algebraic equations. After a brief overview of SPARK, we describe the use of computer algebra in SPARK's symbolic interface, which generates solution code for equations that are entered in symbolic form. We also describe how the Lex/Yacc compiler-compiler is used to achieve important extensions to the SPARK simulation language, including parametrized macro objects and steady-state resetting of a dynamic simulation. The application of these methods to solving the partial differential equations for two-dimensional heat flow is illustrated.

  14. Computer-Generated Abstract Paintings Oriented by the Color Composition of Images

    Directory of Open Access Journals (Sweden)

    Mao Li

    2017-06-01

    Full Text Available Designers and artists often require reference images at authoring time. The emergence of computer technology has provided new conditions and possibilities for artistic creation and research. It has also expanded the forms of artistic expression and attracted many artists, designers and computer experts to explore different artistic directions and collaborate with one another. In this paper, we present an efficient k-means-based method to segment the colors of an original picture to analyze the composition ratio of the color information and calculate individual color areas that are associated with their sizes. This information is transformed into regular geometries to reconstruct the colors of the picture to generate abstract images. Furthermore, we designed an application system using the proposed method and generated many works; some artists and designers have used it as an auxiliary tool for art and design creation. The experimental results of datasets demonstrate the effectiveness of our method and can give us inspiration for our work.

  15. From image pair to a computer generated hologram for a real-world scene.

    Science.gov (United States)

    Ding, Sihao; Cao, Siyang; Zheng, Yuan F; Ewing, Robert L

    2016-09-20

    We propose an approach to produce computer generated holograms (CGHs) from image pairs of a real-world scene. The ratio of the three-dimensional (3D) physical size of the object is computed from the image pair to provide the correct depth cue. A multilayer wavefront recording plane method completed with a two-stage occlusion culling process is carried out for wave propagation. Multiple holograms can be generated by propagating the wave toward the desired angles, to cover the circular views that are wider than the viewing angle restricted by the wavelength and pitch size of a single hologram. The impact of the imperfect depth information extracted from the image pair on CGH is examined. The approach is evaluated extensively on image pairs of real-world 3D scenes, and the results demonstrate that the circular-view CGH can be produced from a pair of stereo images using the proposed approach.

  16. A PC-based generator of surface ECG potentials for computer electrocardiograph testing.

    Science.gov (United States)

    Franchi, D; Palagi, G; Bedini, R

    1994-02-01

    The system is composed of an electronic circuit, connected to a PC, whose outputs, starting from ECGs digitally collected by commercial interpretative electrocardiographs, simulate virtual patients' limb and chest electrode potentials. Appropriate software manages the D/A conversion and lines up the original short-term signal in a ring buffer to generate continuous ECG traces. The device also permits the addition of artifacts and/or baseline wanders/shifts on each lead separately. The system has been accurately tested and statistical indexes have been computed to quantify the reproduction accuracy analyzing, in the generated signal, both the errors induced on the fiducial point measurements and the capability to retain the diagnostic significance. The device integrated with an annotated ECG data base constitutes a reliable and powerful system to be used in the quality assurance testing of computer electrocardiographs.

  17. Computer Simulations Support a Morphological Contribution to BDNF Enhancement of Action Potential Generation

    Directory of Open Access Journals (Sweden)

    Domenico F Galati

    2016-09-01

    Full Text Available Abstract Brain-derived neurotrophic factor (BDNF regulates both action potential (AP generation and neuron morphology. However, whether BDNF-induced changes in neuron morphology directly impact AP generation is unclear. We quantified BDNF’s effect on cultured cortical neuron morphological parameters and found that BDNF stimulates dendrite growth and addition of dendrites while increasing both excitatory and inhibitory presynaptic inputs in a spatially restricted manner. To gain insight into how these combined changes in neuron structure and synaptic input impact AP generation, we used the morphological parameters we gathered to generate computational models. Simulations suggest that BDNF-induced neuron morphologies generate more APs under a wide variety of conditions. Synapse and dendrite addition have the greatest impact on AP generation. However, subtle alterations in excitatory/inhibitory synapse ratio and strength have a significant impact on AP generation when synaptic activity is low. Consistent with these simulations, BDNF rapidly enhances spontaneous activity in cortical cultures. We propose that BDNF promotes neuron morphologies that are intrinsically more efficient at translating barrages of synaptic activity into APs, which is a previously unexplored aspect of BDNF’s function.

  18. Computer predictions of ground storage effects on performance of Galileo and ISPM generators

    Science.gov (United States)

    Chmielewski, A.

    1983-01-01

    Radioisotope Thermoelectric Generators (RTG) that will supply electrical power to the Galileo and International Solar Polar Mission (ISPM) spacecraft are exposed to several degradation mechanisms during the prolonged ground storage before launch. To assess the effect of storage on the RTG flight performance, a computer code has been developed which simulates all known degradation mechanisms that occur in an RTG during storage and flight. The modeling of these mechanisms and their impact on the RTG performance are discussed.

  19. Intelligent Automated Process Planning and Code Generation for Computer-Controlled Inspection

    Science.gov (United States)

    1994-01-01

    rx)) (setf x2 (multiply-vector-and- matriz x2 rz)) Figure 24 shows how coordinate frame xyz is rotated into its setup orientation by three ordered... Boston , MA: Kluwer Academic Press. LeClair, Steven R., 1991. "The Rapid Design System: Memory-Driven Feature- Based Design," Proceedings of the 1991...Generation for PCB Assembly," Manufacturing Review, 4, 3, 214-224. Takefuji, Yoshiyasu, 1992. Neural Network Parallel Computing. Boston . MA: Kluwer

  20. Violent Frames: Analyzing Internet Movie Database Reviewers' Text Descriptions of Media Violence and Gender Differences from 39 Years of US Action, Thriller, Crime, and Adventure Movies

    NARCIS (Netherlands)

    Gosselt, Jordi Franciscus; van Hoof, Joris Jasper; Gent, B.S.; Fox, Gerardus J.A.

    2015-01-01

    The Internet Movie Database (www.imdb.com) is the largest and most successful website for movie information, yet crowdsourced contents of sites like these have rarely been studied. Therefore, using IMDb synopsis texts, reviewers’ movie descriptions were analyzed regarding movie contents that have

  1. Violent Frames: Analyzing Internet Movie Database Reviewers' Text Descriptions of Media Violence and Gender Differences from 39 Years of US Action, Thriller, Crime, and Adventure Movies

    NARCIS (Netherlands)

    Gosselt, J.F.; Hoof, van J.J.; Gent, B.S.; Fox, G.J.A.

    2015-01-01

    The Internet Movie Database (www.imdb.com) is the largest and most successful website for movie information, yet crowdsourced contents of sites like these have rarely been studied. Therefore, using IMDb synopsis texts, reviewers’ movie descriptions were analyzed regarding movie contents that have be

  2. Computer generated holograms from three dimensional meshes using an analytic light transport model

    Science.gov (United States)

    Ahrenberg, Lukas; Benzie, Philip; Magnor, Marcus; Watson, John

    2008-04-01

    We present a method to analytically compute the light distribution of triangles directly in frequency space. This allows for fast evaluation, shading, and propagation of light from 3D mesh objects using angular spectrum methods. The algorithm complexity is only dependent on the hologram resolution and the polygon count of the 3D model. In contrast to other polygon based computer generated holography methods we do not need to perform a Fourier transform per surface. The theory behind the approach is derived, and a suitable algorithm to compute a digital hologram from a general triangle mesh is presented. We review some first results rendered on a spatial-light-modulator-based display by our proof-of-concept software.

  3. Automatic Generation of OpenMP Directives and Its Application to Computational Fluid Dynamics Codes

    Science.gov (United States)

    Yan, Jerry; Jin, Haoqiang; Frumkin, Michael; Yan, Jerry (Technical Monitor)

    2000-01-01

    The shared-memory programming model is a very effective way to achieve parallelism on shared memory parallel computers. As great progress was made in hardware and software technologies, performance of parallel programs with compiler directives has demonstrated large improvement. The introduction of OpenMP directives, the industrial standard for shared-memory programming, has minimized the issue of portability. In this study, we have extended CAPTools, a computer-aided parallelization toolkit, to automatically generate OpenMP-based parallel programs with nominal user assistance. We outline techniques used in the implementation of the tool and discuss the application of this tool on the NAS Parallel Benchmarks and several computational fluid dynamics codes. This work demonstrates the great potential of using the tool to quickly port parallel programs and also achieve good performance that exceeds some of the commercial tools.

  4. A computer-controlled system for generation of chemical vapours in in vitro dermal uptake studies.

    Science.gov (United States)

    Rauma, Matias; Johanson, Gunnar

    2007-02-01

    Recent work in our laboratory suggests that dermal absorption and desorption of volatile chemicals may be assessed in vitro by thermogravimetric analysis (TGA), i.e. by passing chemical vapour over a piece of skin while recording the weight increase at constant temperature and humidity. This paper describes a high-precision automated vapour-generating system for use with the TGA equipment. The system consists of computer-controlled magnetic valves and mass flow meters that split and redirect a flow of pure, dry air through different stainless-steel gas wash bottles thermostated to 25.00+/-0.05 degrees C. Each wash bottle is filled with a neat volatile chemical and designed so that the air leaving reaches 100% saturation within seconds, as shown with cyclohexanone. The air leaving the wash bottles are combined and directed via stainless-steel liners to the skin piece in the TGA chamber. The liners are heated to 30 degrees C to prevent condensation of water or chemical. Special computer software was developed to allow automatic runs with different wash bottles (chemicals) and air flows over several days. A number of measurements were made to characterize the stability and reproducibility of the vapour-generating system. We have developed a computer-controlled vapour-generating system for use in measurements of dermal absorption of chemicals by thermal gravimetry. The system has high stability and reproducibility and produces little noise.

  5. Speckle noise reduction for computer generated holograms of objects with diffuse surfaces

    Science.gov (United States)

    Symeonidou, Athanasia; Blinder, David; Ahar, Ayyoub; Schretter, Colas; Munteanu, Adrian; Schelkens, Peter

    2016-04-01

    Digital holography is mainly used today for metrology and microscopic imaging and is emerging as an important potential technology for future holographic television. To generate the holographic content, computer-generated holography (CGH) techniques convert geometric descriptions of a 3D scene content. To model different surface types, an accurate model of light propagation has to be considered, including for example, specular and diffuse reflection. In previous work, we proposed a fast CGH method for point cloud data using multiple wavefront recording planes, look-up tables (LUTs) and occlusion processing. This work extends our method to account for diffuse reflections, enabling rendering of deep 3D scenes in high resolution with wide viewing angle support. This is achieved by modifying the spectral response of the light propagation kernels contained by the look-up tables. However, holograms encoding diffuse reflective surfaces depict significant amounts of speckle noise, a problem inherent to holography. Hence, techniques to improve the reduce speckle noise are evaluated in this paper. Moreover, we propose as well a technique to suppress the aperture diffraction during numerical, viewdependent rendering by apodizing the hologram. Results are compared visually and in terms of their respective computational efficiency. The experiments show that by modelling diffuse reflection in the LUTs, a more realistic yet computationally efficient framework for generating high-resolution CGH is achieved.

  6. Spatio-temporal colour correction of strongly degraded movies

    Science.gov (United States)

    Islam, A. B. M. Tariqul; Farup, Ivar

    2011-01-01

    The archives of motion pictures represent an important part of precious cultural heritage. Unfortunately, these cinematography collections are vulnerable to different distortions such as colour fading which is beyond the capability of photochemical restoration process. Spatial colour algorithms-Retinex and ACE provide helpful tool in restoring strongly degraded colour films but, there are some challenges associated with these algorithms. We present an automatic colour correction technique for digital colour restoration of strongly degraded movie material. The method is based upon the existing STRESS algorithm. In order to cope with the problem of highly correlated colour channels, we implemented a preprocessing step in which saturation enhancement is performed in a PCA space. Spatial colour algorithms tend to emphasize all details in the images, including dust and scratches. Surprisingly, we found that the presence of these defects does not affect the behaviour of the colour correction algorithm. Although the STRESS algorithm is already in itself more efficient than traditional spatial colour algorithms, it is still computationally expensive. To speed it up further, we went beyond the spatial domain of the frames and extended the algorithm to the temporal domain. This way, we were able to achieve an 80 percent reduction of the computational time compared to processing every single frame individually. We performed two user experiments and found that the visual quality of the resulting frames was significantly better than with existing methods. Thus, our method outperforms the existing ones in terms of both visual quality and computational efficiency.

  7. Optimization of computer-generated holograms for dynamic optical manipulation with uniform structured light spots

    Institute of Scientific and Technical Information of China (English)

    Jing Bu; Guanghui Yuan; Yuyang Sun; Siwei Zhu; Xiaocong Yuan

    2011-01-01

    An optimized iterative technique combining the merits of conventional Gerchber-Saxton (G-S) and adaptive-additive (A-A) algorithms to design multilevel computer-generated holograms for the creation of a desirable structured intensity pattern for multiple optical manipulation is theoretically adopted. Optical trap arrays are demonstrated with the help of liquid crystal spatial light modulator and a microscopic optical tweezer system. Additionally, continuous locked-in transport and deflection of microparticles with the generated optical lattice is proven experimentally. The proposed method possesses apparent high efficiency, high uniformity, and dynamic and reconfigurable advantages.%@@ An optimized iterative technique combining the merits of conventional Gerchber-Saxton (G-S) and adaptive-additive (A-A) algorithms to design multilevel computer-generated holograms for the creation of a desirable structured intensity pattern for multiple optical manipulation is theoretically adopted.Optical trap arrays are demonstrated with the help of liquid crystal spatial light modulator and a microscopic optical tweezer system.Additionally, continuous locked-in transport and deflection of microparticles with the generated optical lattice is proven experimentally.The proposed method possesses apparent high efficiency, high uniformity, and dynamic and reconfigurable advantages.

  8. Relationship of Terror Feelings and Physiological Response During Watching Horror Movie

    OpenAIRE

    Fukumoto, Makoto; Tsukino, Yuuki

    2015-01-01

    Part 8: ICBAKE 2015 Workshop; International audience; Movie is one of the most popular media types. Horror movie is a kind of attractive movie contents which part of people want to watch very much. Although the users feel terror of the contents, the users want to watch the horror movies to have extraordinary feelings such as excitements. Therefore, terror feelings of the horror movies are considered as an important factor to establish more attractive movie contents, and the effect of horror m...

  9. Application of Foreignization Theory in Translation of Movie Subtitles

    Institute of Scientific and Technical Information of China (English)

    周雪

    2013-01-01

    As a new branch of literary translation, movie translation has its own features. Domestication and foreignization, used as two translation strategies, play an important role in cultural fusion. On the basis of introducing the theory of foreignization, this paper mainly deals with the application of foreignization theory in translation of movie subtitles.

  10. Content-Based Object Movie Retrieval and Relevance Feedbacks

    Directory of Open Access Journals (Sweden)

    Lee Greg C

    2007-01-01

    Full Text Available Object movie refers to a set of images captured from different perspectives around a 3D object. Object movie provides a good representation of a physical object because it can provide 3D interactive viewing effect, but does not require 3D model reconstruction. In this paper, we propose an efficient approach for content-based object movie retrieval. In order to retrieve the desired object movie from the database, we first map an object movie into the sampling of a manifold in the feature space. Two different layers of feature descriptors, dense and condensed, are designed to sample the manifold for representing object movies. Based on these descriptors, we define the dissimilarity measure between the query and the target in the object movie database. The query we considered can be either an entire object movie or simply a subset of views. We further design a relevance feedback approach to improving retrieved results. Finally, some experimental results are presented to show the efficacy of our approach.

  11. Gripped by movies: From story-world to artifact absorption

    NARCIS (Netherlands)

    Doicaru, M.M.

    2016-01-01

    That movies are a great source of entertainment seems to be common sense. But how exactly movies manage to get large audiences absorbed, or what is their gripping tool is still a mystery. Research makes use of different concepts pointing to narrative absorption, but it is not clear how they differ f

  12. Precomputed Clustering for Movie Recommendation System in Real Time

    Directory of Open Access Journals (Sweden)

    Bo Li

    2014-01-01

    of recommendation systems grows, we started working on the movie recommendation systems. Most research efforts in the fields of movie recommendation system are focusing on discovering the most relevant features from users, or seeking out users who share same tastes as that of the given user as well as recommending the movies according to the liking of these sought users or seeking out users who share a connection with other people (friends, classmates, colleagues, etc. and make recommendations based on those related people’s tastes. However, little research has focused on recommending movies based on the movie’s features. In this paper, we present a novel idea that applies machine learning techniques to construct a cluster for the movie by implementing a distance matrix based on the movie features and then make movie recommendation in real time. We implement some different clustering methods and evaluate their performance in a real movie forum website owned by one of our authors. This idea can also be used in other types of recommendation systems such as music, news, and articles.

  13. An Analysis of Black Humor in the Movie The Simpsons

    Institute of Scientific and Technical Information of China (English)

    赵筱婧

    2016-01-01

    Black humor is widely applied in literature, drama, and film. This paper, through analyzing the theme, plot, and stereotypes of The Simpsons, aims to make a research of black humor and its application in this movie in order to facilitate the understanding of the movie and present its significance on modern society.

  14. Effects of smoking cues in movies on immediate smoking behavior

    NARCIS (Netherlands)

    Lochbuehler, K.; Peters, M.; Scholte, R.H.J.; Engels, R.C.M.E.

    2010-01-01

    Introduction: The objective of this study was to investigate the effect of smoking cues in movies on immediate smoking behavior. We tested whether smokers who are confronted with smoking characters in a movie smoke more cigarettes while watching than those confronted with non-smoking characters and

  15. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Health / Tips & Prevention Sections Are 3-D Movies Bad for Your Eyes? Jul. 09, 2013 With the popularity of 3-D movies, it's natural to wonder what, if any, effect the technology has on your eyes. Is 3- ...

  16. English Movie:A Smart Method to Teach English

    Institute of Scientific and Technical Information of China (English)

    SHEN Wen-yan; HU Jun-jie

    2015-01-01

    English movies are the cultural carriers of English-speaking countries with veritable colloquial expressions, authentic environment and abundant cultural connotation. Teaching English through English movies can not only help students learn Eng⁃lish language, but also acquire English culture. It’s also an effective way to improve students’oral English and their accultural communication ability.

  17. Maximizing the Educational Power of History Movies in the Classroom

    Science.gov (United States)

    Metzger, Scott Alan

    2010-01-01

    Cinematic feature films are a big part of youth popular culture. When blockbuster movies are about historical topics, it is reasonable for teachers to be drawn to using them in the classroom to motivate students interest. This article overviews research on film in the history classroom and describes three learning functions that history movies can…

  18. Bugs and Movies: Using Film to Teach Microbiology

    Directory of Open Access Journals (Sweden)

    Manuel Sánchez

    2011-09-01

    Full Text Available A YouTube channel has been created to watch commented video fragments from famous movies or TV series that can be used to teach microbiology. Although microbes are usually depicted in terms of their roles in causing infectious disease, numerous movies reflect other scientific aspects, such as biotechnological applications or bioethical issues.

  19. Effects of smoking cues in movies on immediate smoking behavior

    NARCIS (Netherlands)

    Lochbuehler, K.; Peters, M.; Scholte, R.H.J.; Engels, R.C.M.E.

    2010-01-01

    Introduction: The objective of this study was to investigate the effect of smoking cues in movies on immediate smoking behavior. We tested whether smokers who are confronted with smoking characters in a movie smoke more cigarettes while watching than those confronted with non-smoking characters and

  20. Effects of smoking cues in movies on immediate smoking behavior

    NARCIS (Netherlands)

    Lochbühler, K.C.; Peters, P.M.; Scholte, R.H.J.; Engels, R.C.M.E.

    2010-01-01

    The objective of this study was to investigate the effect of smoking cues in movies on immediate smoking behavior. We tested whether smokers who are confronted with smoking characters in a movie smoke more cigarettes while watching than those confronted with non-smoking characters and whether this e

  1. Foreignizing Translation and Domesticating Translation of Hong Kong Movie Titles

    Institute of Scientific and Technical Information of China (English)

    林慧韵

    2014-01-01

    Generally,the movie title translation strategy would be divided into two:domesticating translation strategy and foreignizing translation strategy.The movie title translation in Hong Kong is chosen to be the material for the analysis of the domesticating translation strategy and foreignizing translation strategy,compared with that of Mainland China.

  2. Sound Employment in the Adapted Movie-Daisy Miller

    Institute of Scientific and Technical Information of China (English)

    钦白兰

    2009-01-01

    Daisy Miller is a 1974 Ameriean drama movie directed by Peter Bogdanovich.It iS an adaptation of the Henry James‘novella of the same name.The movie,conmimng many symbolic cinematic techniques,iS about a beautiful young American girl died of"Roman fever"in Europe.This paper is devoted to the cinematic sound employment in the movie-Daisy Miller,with a purpose to show how the movie employs different sounds,difierent from the novella.to activate its theme.From the cinematic sound perspective,the paper claims that as all adapted movie,cinematic sound employment deeps the thematic realization,subtly intriguing with James,for the audience.

  3. On the Embodiment of Cultural Specification of Western Cartoon Movies

    Institute of Scientific and Technical Information of China (English)

    张敏

    2015-01-01

    This study focus on the western culture embodied in cartoon movies.The main object is to help readers to know the characteristics of western culture through cartoon movies.With the enjoyment to the western cartoon movies,I discuss the definition of western culture.American culture is a representation of western culture,and there are many western culture elements in American culture,so I will mainly talk about American culture.And then,this thesis discusses some good cartoon movies,the incarnation of the western culture through them.The language,activities,and architectural style in cartoon movies show the American cultures well.People could have a better understand about their characteristics while enjoying the interesting,colorful,winning cartoons.

  4. A method of computer aided design with self-generative models in NX Siemens environment

    Science.gov (United States)

    Grabowik, C.; Kalinowski, K.; Kempa, W.; Paprocka, I.

    2015-11-01

    Currently in CAD/CAE/CAM systems it is possible to create 3D design virtual models which are able to capture certain amount of knowledge. These models are especially useful in an automation of routine design tasks. These models are known as self-generative or auto generative and they can behave in an intelligent way. The main difference between the auto generative and fully parametric models consists in the auto generative models ability to self-organizing. In this case design model self-organizing means that aside from the possibility of making of automatic changes of model quantitative features these models possess knowledge how these changes should be made. Moreover they are able to change quality features according to specific knowledge. In spite of undoubted good points of self-generative models they are not so often used in design constructional process which is mainly caused by usually great complexity of these models. This complexity makes the process of self-generative time and labour consuming. It also needs a quite great investment outlays. The creation process of self-generative model consists of the three stages it is knowledge and information acquisition, model type selection and model implementation. In this paper methods of the computer aided design with self-generative models in NX Siemens CAD/CAE/CAM software are presented. There are the five methods of self-generative models preparation in NX with: parametric relations model, part families, GRIP language application, knowledge fusion and OPEN API mechanism. In the paper examples of each type of the self-generative model are presented. These methods make the constructional design process much faster. It is suggested to prepare this kind of self-generative models when there is a need of design variants creation. The conducted research on assessing the usefulness of elaborated models showed that they are highly recommended in case of routine tasks automation. But it is still difficult to distinguish

  5. The meaning of destruction: Definition and contextualization of disaster movies

    Directory of Open Access Journals (Sweden)

    Tomašević Milan

    2014-01-01

    Full Text Available The disaster movie is one of the most persistent genres in cinematography, but it constantly escapes our attention because it is presented as “easy summer fun”. If we want to understand it as a cultural document of an epoch in which the genre is important and popular, we need to come up with a definition, formula and conventions of a disaster movie. Also, we must propose one of many possible comprehensions of its popularity and religious heritage. The paper uses definitions of genre, conventions and formulae in the attempt to show a way of using popular narratives in the transmission of a world view. Using a narrative structure gives us a glimpse into the deeper cultural, social and political context in which the disaster movie is created, popular or rejected. The paper discusses disaster movies as cultural artifacts, as a ritual we are practicing without remembering its purpose. Also, paper is examining identifying apocalyptic and catastrophic as an product of interposition of Apocalypse to Johan and Great Tribulation. Using apocalyptic literature, end times narratives and disaster movies, the paper shows the fruitfulness of destruction representations and imaginarium of terror. Using fear and shock, the messages of disaster movies seems more urgent and relevant. Through the ideas of Susan Sontag and Maurice Yacowar, the paper presents a way for analyzing the contemporary disaster movie. Conventions and formulae of disaster movies help us to understand the way modern cinematography is used for cultural and political means. The popularity of disaster movies can be seen as a form of ”ritualization of discontent” wherein the viewers experience some sort of catharsis. Also, disaster movie gathers different interests and actualizes thirstness for transformation of order or achieving justice. [Projekat Ministarstva nauke Republike Srbije, br. 177026

  6. 3D-SoftChip: A Novel Architecture for Next-Generation Adaptive Computing Systems

    Directory of Open Access Journals (Sweden)

    Lee Mike Myung-Ok

    2006-01-01

    Full Text Available This paper introduces a novel architecture for next-generation adaptive computing systems, which we term 3D-SoftChip. The 3D-SoftChip is a 3-dimensional (3D vertically integrated adaptive computing system combining state-of-the-art processing and 3D interconnection technology. It comprises the vertical integration of two chips (a configurable array processor and an intelligent configurable switch through an indium bump interconnection array (IBIA. The configurable array processor (CAP is an array of heterogeneous processing elements (PEs, while the intelligent configurable switch (ICS comprises a switch block, 32-bit dedicated RISC processor for control, on-chip program/data memory, data frame buffer, along with a direct memory access (DMA controller. This paper introduces the novel 3D-SoftChip architecture for real-time communication and multimedia signal processing as a next-generation computing system. The paper further describes the advanced HW/SW codesign and verification methodology, including high-level system modeling of the 3D-SoftChip using SystemC, being used to determine the optimum hardware specification in the early design stage.

  7. Electro-holography display using computer generated hologram of 3D objects based on projection spectra

    Science.gov (United States)

    Huang, Sujuan; Wang, Duocheng; He, Chao

    2012-11-01

    A new method of synthesizing computer-generated hologram of three-dimensional (3D) objects is proposed from their projection images. A series of projection images of 3D objects are recorded with one-dimensional azimuth scanning. According to the principles of paraboloid of revolution in 3D Fourier space and 3D central slice theorem, spectra information of 3D objects can be gathered from their projection images. Considering quantization error of horizontal and vertical directions, the spectrum information from each projection image is efficiently extracted in double circle and four circles shape, to enhance the utilization of projection spectra. Then spectra information of 3D objects from all projection images is encoded into computer-generated hologram based on Fourier transform using conjugate-symmetric extension. The hologram includes 3D information of objects. Experimental results for numerical reconstruction of the CGH at different distance validate the proposed methods and show its good performance. Electro-holographic reconstruction can be realized by using an electronic addressing reflective liquid-crystal display (LCD) spatial light modulator. The CGH from the computer is loaded onto the LCD. By illuminating a reference light from a laser source to the LCD, the amplitude and phase information included in the CGH will be reconstructed due to the diffraction of the light modulated by the LCD.

  8. Structural variation discovery in the cancer genome using next generation sequencing: Computational solutions and perspectives

    Science.gov (United States)

    Liu, Biao; Conroy, Jeffrey M.; Morrison, Carl D.; Odunsi, Adekunle O.; Qin, Maochun; Wei, Lei; Trump, Donald L.; Johnson, Candace S.; Liu, Song; Wang, Jianmin

    2015-01-01

    Somatic Structural Variations (SVs) are a complex collection of chromosomal mutations that could directly contribute to carcinogenesis. Next Generation Sequencing (NGS) technology has emerged as the primary means of interrogating the SVs of the cancer genome in recent investigations. Sophisticated computational methods are required to accurately identify the SV events and delineate their breakpoints from the massive amounts of reads generated by a NGS experiment. In this review, we provide an overview of current analytic tools used for SV detection in NGS-based cancer studies. We summarize the features of common SV groups and the primary types of NGS signatures that can be used in SV detection methods. We discuss the principles and key similarities and differences of existing computational programs and comment on unresolved issues related to this research field. The aim of this article is to provide a practical guide of relevant concepts, computational methods, software tools and important factors for analyzing and interpreting NGS data for the detection of SVs in the cancer genome. PMID:25849937

  9. Clinical assessment of freezing of gait in Parkinson's disease from computer-generated animation.

    Science.gov (United States)

    Morris, Tiffany R; Cho, Catherine; Dilda, Valentina; Shine, James M; Naismith, Sharon L; Lewis, Simon J G; Moore, Steven T

    2013-06-01

    The current 'gold standard' for clinical evaluation of freezing of gait (FOG) in Parkinson's disease (PD) is determination of the number of FOG episodes from video by independent raters. We have previously described a robust technique for objective FOG assessment from lower-limb acceleration. However, there is no existing method for validation of autonomous FOG measures in the absence of video documentation. In this study we compared the results of clinical evaluation of FOG from computer-generated animations (derived from body-mounted inertial sensors) during a timed up and go test with the 'gold standard' of clinical video assessment, utilizing a cohort of 10 experienced raters from four PD centers. Agreement between the 10 clinical observers for scoring of FOG from computer animations was more robust for the relative duration of freeze events (percent time frozen; intraclass correlation coefficient of 0.65) than number of FOG episodes, and was comparable with clinical evaluation of the patient from video (intraclass correlation coefficient 0.73). This result suggests that percent time frozen should be considered (along with number of FOG events) to better convey FOG severity. The ability of clinical observers to quantify FOG from computer-generated animation derived from lower-limb motion data provides a potential approach to validation of accelerometry-based FOG identification outside of the clinic. Copyright © 2013 Elsevier B.V. All rights reserved.

  10. Computing Aerodynamic Performance of a 2D Iced Airfoil: Blocking Topology and Grid Generation

    Science.gov (United States)

    Chi, X.; Zhu, B.; Shih, T. I.-P.; Slater, J. W.; Addy, H. E.; Choo, Yung K.; Lee, Chi-Ming (Technical Monitor)

    2002-01-01

    The ice accrued on airfoils can have enormously complicated shapes with multiple protruded horns and feathers. In this paper, several blocking topologies are proposed and evaluated on their ability to produce high-quality structured multi-block grid systems. A transition layer grid is introduced to ensure that jaggedness on the ice-surface geometry do not to propagate into the domain. This is important for grid-generation methods based on hyperbolic PDEs (Partial Differential Equations) and algebraic transfinite interpolation. A 'thick' wrap-around grid is introduced to ensure that grid lines clustered next to solid walls do not propagate as streaks of tightly packed grid lines into the interior of the domain along block boundaries. For ice shapes that are not too complicated, a method is presented for generating high-quality single-block grids. To demonstrate the usefulness of the methods developed, grids and CFD solutions were generated for two iced airfoils: the NLF0414 airfoil with and without the 623-ice shape and the B575/767 airfoil with and without the 145m-ice shape. To validate the computations, the computed lift coefficients as a function of angle of attack were compared with available experimental data. The ice shapes and the blocking topologies were prepared by NASA Glenn's SmaggIce software. The grid systems were generated by using a four-boundary method based on Hermite interpolation with controls on clustering, orthogonality next to walls, and C continuity across block boundaries. The flow was modeled by the ensemble-averaged compressible Navier-Stokes equations, closed by the shear-stress transport turbulence model in which the integration is to the wall. All solutions were generated by using the NPARC WIND code.

  11. The extinct animal show: the paleoimagery tradition and computer generated imagery in factual television programs.

    Science.gov (United States)

    Campbell, Vincent

    2009-03-01

    Extinct animals have always been popular subjects for the media, in both fiction, and factual output. In recent years, a distinctive new type of factual television program has emerged in which computer generated imagery is used extensively to bring extinct animals back to life. Such has been the commercial audience success of these programs that they have generated some public and academic debates about their relative status as science, documentary, and entertainment, as well as about their reflection of trends in factual television production, and the aesthetic tensions in the application of new media technologies. Such discussions ignore a crucial contextual feature of computer generated extinct animal programs, namely the established tradition of paleoimagery. This paper examines a selection of extinct animal shows in terms of the dominant frames of the paleoimagery genre. The paper suggests that such an examination has two consequences. First, it allows for a more context-sensitive evaluation of extinct animal programs, acknowledging rather than ignoring relevant representational traditions. Second, it allows for an appraisal and evaluation of public and critical reception of extinct animal programs above and beyond the traditional debates about tensions between science, documentary, entertainment, and public understanding.

  12. Infragravity wave generation and dynamics over a mild slope beach : Experiments and numerical computations

    Science.gov (United States)

    Cienfuegos, R.; Duarte, L.; Hernandez, E.

    2008-12-01

    Charasteristic frequencies of gravity waves generated by wind and propagating towards the coast are usually comprised between 0.05Hz and 1Hz. Nevertheless, lower frequecy waves, in the range of 0.001Hz and 0.05Hz, have been observed in the nearshore zone. Those long waves, termed as infragravity waves, are generated by complex nonlinear mechanisms affecting the propagation of irregular waves up to the coast. The groupiness of an incident random wave field may be responsible for producing a slow modulation of the mean water surface thus generating bound long waves travelling at the group speed. Similarly, a quasi- periodic oscillation of the break-point location, will be accompained by a slow modulation of set-up/set-down in the surf zone and generation and release of long waves. If the primary structure of the carrying incident gravity waves is destroyed (e.g. by breaking), forced long waves can be freely released and even reflected at the coast. Infragravity waves can affect port operation through resonating conditions, or strongly affect sediment transport and beach morphodynamics. In the present study we investigate infragravity wave generation mechanisms both, from experiments and numerical computations. Measurements were conducted at the 70-meter long wave tank, located at the Instituto Nacional de Hidraulica (Chile), prepared with a beach of very mild slope of 1/80 in order to produce large surf zone extensions. A random JONSWAP type wave field (h0=0.52m, fp=0.25Hz, Hmo=0.17m) was generated by a piston wave-maker and measurements of the free surface displacements were performed all over its length at high spatial resolution (0.2m to 1m). Velocity profiles were also measured at four verticals inside the surf zone using an ADV. Correlation maps of wave group envelopes and infragravity waves are computed in order to identify long wave generation and dynamics in the experimental set-up. It appears that both mechanisms (groupiness and break-point oscillation) are

  13. New Generation of the Monte Carlo Shell Model for the K Computer Era

    CERN Document Server

    Shimizu, Noritaka; Tsunoda, Yusuke; Utsuno, Yutaka; Yoshida, Tooru; Mizusaki, Takahiro; Honma, Michio; Otsuka, Takaharu

    2012-01-01

    We present a newly enhanced version of the Monte Carlo Shell Model method by incorporating the conjugate gradient method and energy-variance extrapolation. This new method enables us to perform large-scale shell-model calculations that the direct diagonalization method cannot reach. This new generation framework of the MCSM provides us with a powerful tool to perform most-advanced large-scale shell-model calculations on current massively parallel computers such as the K computer. We discuss the validity of this method in ab initio calculations of light nuclei, and propose a new method to describe the intrinsic wave function in terms of the shell-model picture. We also apply this new MCSM to the study of neutron-rich Cr and Ni isotopes using the conventional shell-model calculations with an inert 40Ca core and discuss how the magicity of N = 28, 40, 50 remains or is broken.

  14. Correlation energies by the generator coordinate method: computational aspects for quadrupolar deformations

    CERN Document Server

    Bender, M; Heenen, P H

    2004-01-01

    We investigate truncation schemes to reduce the computational cost of calculating correlations by the generator coordinate method based on mean-field wave functions. As our test nuclei, we take examples for which accurate calculations are available. These include a strongly deformed nucleus, 156Sm, a nucleus with strong pairing, 120Sn, the krypton isotope chain which contains examples of soft deformations, and the lead isotope chain which includes the doubly magic 208Pb. We find that the Gaussian overlap approximation for angular momentum projection is effective and reduces the computational cost by an order of magnitude. Cost savings in the deformation degrees of freedom are harder to realize. A straightforward Gaussian overlap approximation can be applied rather reliably to angular-momentum projected states based on configuration sets having the same sign deformation (prolate or oblate), but matrix elements between prolate and oblate deformations must be treated with more care. We propose a two-dimensional ...

  15. Phase transition and computational complexity in a stochastic prime number generator

    Energy Technology Data Exchange (ETDEWEB)

    Lacasa, L; Luque, B [Departamento de Matematica Aplicada y EstadIstica, ETSI Aeronauticos, Universidad Politecnica de Madrid, Plaza Cardenal Cisneros 3, Madrid 28040 (Spain); Miramontes, O [Departamento de Sistemas Complejos, Instituto de FIsica, Universidad Nacional Autonoma de Mexico, Mexico 01415 DF (Mexico)], E-mail: lucas@dmae.upm.es

    2008-02-15

    We introduce a prime number generator in the form of a stochastic algorithm. The character of this algorithm gives rise to a continuous phase transition which distinguishes a phase where the algorithm is able to reduce the whole system of numbers into primes and a phase where the system reaches a frozen state with low prime density. In this paper, we firstly present a broader characterization of this phase transition, both in analytical and numerical terms. Critical exponents are calculated, and data collapse is provided. Further on, we redefine the model as a search problem, fitting it in the hallmark of computational complexity theory. We suggest that the system belongs to the class NP. The computational cost is maximal around the threshold, as is common in many algorithmic phase transitions, revealing the presence of an easy-hard-easy pattern. We finally relate the nature of the phase transition to an average-case classification of the problem.

  16. Integrated Computational Materials Engineering (ICME) for Third Generation Advanced High-Strength Steel Development

    Energy Technology Data Exchange (ETDEWEB)

    Savic, Vesna; Hector, Louis G.; Ezzat, Hesham; Sachdev, Anil K.; Quinn, James; Krupitzer, Ronald; Sun, Xin

    2015-06-01

    This paper presents an overview of a four-year project focused on development of an integrated computational materials engineering (ICME) toolset for third generation advanced high-strength steels (3GAHSS). Following a brief look at ICME as an emerging discipline within the Materials Genome Initiative, technical tasks in the ICME project will be discussed. Specific aims of the individual tasks are multi-scale, microstructure-based material model development using state-of-the-art computational and experimental techniques, forming, toolset assembly, design optimization, integration and technical cost modeling. The integrated approach is initially illustrated using a 980 grade transformation induced plasticity (TRIP) steel, subject to a two-step quenching and partitioning (Q&P) heat treatment, as an example.

  17. Spatial bandwidth analysis of fast backward Fresnel diffraction for precise computer-generated hologram design.

    Science.gov (United States)

    Liang, Jinyang; Becker, Michael F

    2014-09-20

    Designing near-field computer-generated holograms (CGHs) for a spatial light modulator (SLM) requires backward diffraction calculations. However, direct implementation of the discrete computational model of the Fresnel diffraction integral often produces inaccurate reconstruction. Finite sizes of the SLM and the target image, as well as aliasing, are major sources of error. Here we present a new design prescription for precise near-field CGHs based on comprehensive analysis of the spatial bandwidth. We demonstrate that, by controlling two free variables related to the target image, the designed hologram is free from aliasing and can have minimum error. To achieve this, we analyze the geometry of the target image, hologram, and Fourier transform plane of the target image to derive conditions for minimizing reconstruction error due to truncation of spatial frequencies lying outside of the hologram. The design prescription is verified by examples showing reconstruction error versus controlled parameters. Finally, it is applied to precise three-dimensional image reconstruction.

  18. The benefits of computer-generated feedback for mathematics problem solving.

    Science.gov (United States)

    Fyfe, Emily R; Rittle-Johnson, Bethany

    2016-07-01

    The goal of the current research was to better understand when and why feedback has positive effects on learning and to identify features of feedback that may improve its efficacy. In a randomized experiment, second-grade children received instruction on a correct problem-solving strategy and then solved a set of relevant problems. Children were assigned to receive no feedback, immediate feedback, or summative feedback from the computer. On a posttest the following day, feedback resulted in higher scores relative to no feedback for children who started with low prior knowledge. Immediate feedback was particularly effective, facilitating mastery of the material for children with both low and high prior knowledge. Results suggest that minimal computer-generated feedback can be a powerful form of guidance during problem solving.

  19. Little Miss Sunshine et le road movie

    Directory of Open Access Journals (Sweden)

    Anne Paupe

    2007-01-01

    Full Text Available Little Miss Sunshine est un road movie bien particulier : s’il relève assurément de ce genre, puisqu’il est essentiellement consacré au périple entrepris par ses protagonistes afin d’emmener, envers et contre tout, la petite Olive au concours de beauté qui l’attend en Californie, le film de Jonathan Dayton et Valerie Faris retient surtout l’attention par son humour satirique. Un rapide tour d’horizon de sa réception critique confirme qu’il a été rangé simultanément dans deux catégories généri...

  20. Design of computer-generated beam-shaping holograms by iterative finite-element mesh adaption.

    Science.gov (United States)

    Dresel, T; Beyerlein, M; Schwider, J

    1996-12-10

    Computer-generated phase-only holograms can be used for laser beam shaping, i.e., for focusing a given aperture with intensity and phase distributions into a pregiven intensity pattern in their focal planes. A numerical approach based on iterative finite-element mesh adaption permits the design of appropriate phase functions for the task of focusing into two-dimensional reconstruction patterns. Both the hologram aperture and the reconstruction pattern are covered by mesh mappings. An iterative procedure delivers meshes with intensities equally distributed over the constituting elements. This design algorithm adds new elementary focuser functions to what we call object-oriented hologram design. Some design examples are discussed.

  1. Mesh generation and computational modeling techniques for bioimpedance measurements: an example using the VHP data

    Science.gov (United States)

    Danilov, A. A.; Salamatova, V. Yu; Vassilevski, Yu V.

    2012-12-01

    Here, a workflow for high-resolution efficient numerical modeling of bioimpedance measurements is suggested that includes 3D image segmentation, adaptive mesh generation, finite-element discretization, and the analysis of simulation results. Using the adaptive unstructured tetrahedral meshes enables to decrease significantly a number of mesh elements while keeping model accuracy. The numerical results illustrate current, potential, and sensitivity field distributions for a conventional Kubicek-like scheme of bioimpedance measurements using segmented geometric model of human torso based on Visible Human Project data. The whole body VHP man computational mesh is constructed that contains 574 thousand vertices and 3.3 million tetrahedrons.

  2. Precalculation method using spherical basic object light for computer-generated hologram.

    Science.gov (United States)

    Hosoyachi, Kohei; Yamaguchi, Kazuhiro; Ichikawa, Tsubasa; Sakamoto, Yuji

    2013-01-01

    Precalculation methods for computer-generated holograms provide fast calculation by transforming precalculated object light in accordance with the subject shape in the spatial domain. In this paper, a novel method is proposed that uses precalculated object light recorded on a spherical surface, which makes the data size half that of the conventional method. Moreover, representations of the transforms by homogeneous coordinates on the spherical surface are discussed. These representations allow common operations of transforms and solve the calculation complexity that conventional precalculation methods have. The effectiveness of the proposed method was confirmed by optical image-reconstruction experiments successfully.

  3. Computer Model for Electrode Plasma Generation by Electron and Ion Flows

    Science.gov (United States)

    Ryzhov, Victor V.; Bespalov, Valeri I.; Kirikov, Alexander V.; Turchanovskii, Igor. Yu.; Tarakanov, Vladimir P.

    2002-12-01

    A model is proposed for computer simulation of the electrode plasma generation by electron and ion flows. The distribution of the absorbed energy of particles in the electrode material is calculated by the Monte-Carlo codes. This provides a possibility to control the electrode temperature by solving the heat conductivity equation for specified distributions of thermal sources and to calculate the rate of plasma generation. The behavior of the plasma in the gap can be modeled based on simple model where the velocity, the density, and the temperature of the plasma can be given by some dependence. Within the framework of the model proposed, numerical study is performed on the effect of the plasma flows in Rod Pinch Diodes and in the Insulator Stack of the Z-accelerator.

  4. Computer generated hologram null test of a freeform optical surface with rectangular aperture

    Science.gov (United States)

    Su, Ping; Ma, Jianshe; Tan, Qiaofeng; Kang, Guoguo; Liu, Yi; Jin, Guofan

    2012-02-01

    In null computed generated hologram (CGH) test of optical elements, fitting method is needed in null CGH design to generate continuous phase function from the ray-traced discrete phase data. The null CGH for freeform testing usually has a deformed aperture and a high order phase function, because of the aberrations introduced by freeform wavefront propagation. With traditional Zernike polynomial fitting method, selection of an orthogonal basis set and choosing number of terms are needed before fitting. Zernike polynomial fitting method is not suitable in null CGH design for freeform testing; a novel CGH design method with cubic B-spline interpolation is developed. For a freeform surface with 18×18 mm2 rectangular aperture and 630 μm peak-to-valley undulation, the null CGH with a curved rectangular aperture is designed by using the method proposed. Simulation and experimental results proved the feasibility of the novel CGH design method.

  5. Simplified calculation method for computer-generated holographic stereograms from multi-view images.

    Science.gov (United States)

    Takaki, Yasuhiro; Ikeda, Kyohei

    2013-04-22

    A simple calculation method to synthesize computer-generated holographic stereograms, which does not involve diffraction calculations, is proposed. It is assumed that three-dimension (3D) image generation by holographic stereograms is similar to that of multi-view autostereoscopic displays, in that multiple parallax images are displayed with rays converging to corresponding viewpoints. Therefore, a wavefront is calculated, whose amplitude is the square root of an intensity distribution of a parallax image and whose phase is a quadric phase distribution of a spherical wave converging to a viewpoint. Multiple wavefronts calculated for multiple viewpoints are summed up to obtain an object wave, which is then used to determine a hologram pattern. The proposed technique was experimentally verified.

  6. Continuous shading and its fast update in fully analytic triangular-mesh-based computer generated hologram.

    Science.gov (United States)

    Park, Jae-Hyeung; Kim, Seong-Bok; Yeom, Han-Ju; Kim, Hee-Jae; Zhang, HuiJun; Li, BoNi; Ji, Yeong-Min; Kim, Sang-Hoo; Ko, Seok-Bum

    2015-12-28

    Fully analytic mesh-based computer generated hologram enables efficient and precise representation of three-dimensional scene. Conventional method assigns uniform amplitude inside individual mesh, resulting in reconstruction of the three-dimensional scene of flat shading. In this paper, we report an extension of the conventional method to achieve the continuous shading where the amplitude in each mesh is continuously varying. The proposed method enables the continuous shading, while maintaining fully analytic framework of the conventional method without any sacrifice in the precision. The proposed method can also be extended to enable fast update of the shading for different illumination directions and the ambient-diffuse reflection ratio based on Phong reflection model. The feasibility of the proposed method is confirmed by the numerical and optical reconstruction of the generated hologram.

  7. Next Generation Workload Management System For Big Data on Heterogeneous Distributed Computing

    Science.gov (United States)

    Klimentov, A.; Buncic, P.; De, K.; Jha, S.; Maeno, T.; Mount, R.; Nilsson, P.; Oleynik, D.; Panitkin, S.; Petrosyan, A.; Porter, R. J.; Read, K. F.; Vaniachine, A.; Wells, J. C.; Wenaus, T.

    2015-05-01

    The Large Hadron Collider (LHC), operating at the international CERN Laboratory in Geneva, Switzerland, is leading Big Data driven scientific explorations. Experiments at the LHC explore the fundamental nature of matter and the basic forces that shape our universe, and were recently credited for the discovery of a Higgs boson. ATLAS and ALICE are the largest collaborations ever assembled in the sciences and are at the forefront of research at the LHC. To address an unprecedented multi-petabyte data processing challenge, both experiments rely on a heterogeneous distributed computational infrastructure. The ATLAS experiment uses PanDA (Production and Data Analysis) Workload Management System (WMS) for managing the workflow for all data processing on hundreds of data centers. Through PanDA, ATLAS physicists see a single computing facility that enables rapid scientific breakthroughs for the experiment, even though the data centers are physically scattered all over the world. The scale is demonstrated by the following numbers: PanDA manages O(102) sites, O(105) cores, O(108) jobs per year, O(103) users, and ATLAS data volume is O(1017) bytes. In 2013 we started an ambitious program to expand PanDA to all available computing resources, including opportunistic use of commercial and academic clouds and Leadership Computing Facilities (LCF). The project titled ‘Next Generation Workload Management and Analysis System for Big Data’ (BigPanDA) is funded by DOE ASCR and HEP. Extending PanDA to clouds and LCF presents new challenges in managing heterogeneity and supporting workflow. The BigPanDA project is underway to setup and tailor PanDA at the Oak Ridge Leadership Computing Facility (OLCF) and at the National Research Center "Kurchatov Institute" together with ALICE distributed computing and ORNL computing professionals. Our approach to integration of HPC platforms at the OLCF and elsewhere is to reuse, as much as possible, existing components of the PanDA system. We

  8. Efficient rendering and compression for full-parallax computer-generated holographic stereograms

    Science.gov (United States)

    Kartch, Daniel Aaron

    2000-10-01

    In the past decade, we have witnessed a quantum leap in rendering technology and a simultaneous increase in usage of computer generated images. Despite the advances made thus far, we are faced with an ever increasing desire for technology which can provide a more realistic, more immersive experience. One fledgling technology which shows great promise is the electronic holographic display. Holograms are capable of producing a fully three-dimensional image, exhibiting all the depth cues of a real scene, including motion parallax, binocular disparity, and focal effects. Furthermore, they can be viewed simultaneously by any number of users, without the aid of special headgear or position trackers. However, to date, they have been limited in use because of their computational intractability. This thesis deals with the complex task of computing a hologram for use with such a device. Specifically, we will focus on one particular type of hologram: the holographic stereogram. A holographic stereogram is created by generating a large set of two-dimensional images of a scene as seen from multiple camera points, and then converting them to a holographic interference pattern. It is closely related to the light fields or lumigraphs used in image-based rendering. Most previous algorithms have treated the problem of rendering these images as independent computations, ignoring a great deal of coherency which could be used to our advantage. We present a new computationally efficient algorithm which operates on the image set as a whole, rather than on its individual elements. Scene polygons are mapped by perspective projection into a four-dimensional space, where they are scan-converted into 4D color and depth buffers. We use a set of very simple data structures and basic operations to form an algorithm which will lend itself well to future hardware implementation, so as to drive a real-time holographic display. We also examined issues related to the compression of stereograms

  9. Movie subtitles reading skills of elementary school children.

    Science.gov (United States)

    Minucci, Michele Viana; Cárnio, Maria Silvia

    2010-01-01

    the abilities of school children for reading static texts have been widely discussed, however little is known about how well they can read dynamic texts and what skills are required for this kind of reading. to evaluate the skills involved in reading movie subtitles of 2nd and 4th graders of students at the a public school. analysis of the level and skills needed for movie subtitles reading, through the retelling of a section of a movie watched individually by 60 students, 30 2nd graders and 30 4th graders matched for age and gender, with no sound and with subtitles. there were no significant differences in the level of school literacy between students of the different school grades. Considering the skills and the subtitles reading level, 4th graders presented a significant better performance when compared to the 2nd graders. Fourth graders presented skills related to the levels of literal comprehension and independent comprehension, whereas 2nd graders where mostly at the decoding level. 2nd graders are at the textual decoding level of movie subtitles, while 4th graders are at the literal comprehension level of movie subtitles. This indicates that schooling has an influence on the reading of movie subtitles. However, the school literacy literacy was not a significant factor for movie subtitles reading.

  10. An integrated computer-aided system for generation and evaluation of sustainable process alternatives

    Energy Technology Data Exchange (ETDEWEB)

    Jensen, Niels; Coll, Nuria; Gani, Rafiqul [CAPEC, Department of Chemical Engineering, Technical University of Denmark, 2800, Lyngby (Denmark)

    2003-10-01

    This paper presents an integrated system for generation of sustainable process alternatives with respect to new process design as well as retrofit design. The generated process alternatives are evaluated through sustainability metrics, environmental impact factors as well as inherent safety factors. The process alternatives for new process design as well as retrofit design are generated through a systematic method that is simple yet effective and is based on a recently developed path flow analysis approach. According to this approach, a set of indicators are calculated in order to pinpoint unnecessary energy and material waste costs and to identify potential design (retrofit) targets that may improve the process design (in terms of operation and cost) simultaneously with the sustainability metrics, environmental impact factors and the inherent safety factors. Only steady state design data and a database with properties of compounds, including, environmental impact factor related data and safety factor related data are needed. The integrated computer-aided system generates the necessary data if actual plant or experimental data are not available. The application of the integrated system is highlighted through a number of examples including the well-known HDA process. (orig.)

  11. Outreach and education with a concurrent movie "Sinking of Japan"

    Science.gov (United States)

    Yamaoka, K.; Tsuji, H.; Doi, K.

    2006-12-01

    In the summer of 2006, the Japanese movie 'Sinking of Japan (Nihon Chinbotsu)" was released as a remake of the original movie in 33 years ago. The movie, based on the very popular SF novel of the same title, shows human action in the helpless crisis of Japan that is rapidly sinking into sea. Unexpected acceleration of plate subduction and mantle convection cause rapid sinking of Japan, accompanying disastrous earthquakes, tsunamis and volcanic eruptions. Genial but eccentric scientist (Professor of Earthquake Research Institute (ERI), Univ. of 'Toto') with submersible pilots fights against the disaster to help the people in Japanese archipelago. We are asked to help to check the scientific aspect of the movie in creating it. We accepted their offer in the following reasons. The original novel and movie in 33 years ago was very popular and more than 400 copies of the book are sold and about 6.5 million people went to theaters to see the movie. Therefore, the new movie was easily expected to get a big hit and we will have a rare opportunity to get a public interest to earth science. During the first run of the movie we operated 'Q and A' for the earth science of 'Sinking of Japan' on the web site of Earthquake Research Institute (ERI), University of Tokyo. The web site is linked to the official site of the movie, and major Japanese newspapers wrote about the 'Q and A' as an interesting action of ERI. Due to the efficient advertisement, more than 200 questions are submitted and more than 70 answers are listed on the web. More than 800,000 hits are counted to the site, showing wide range of interest to this topic. About half of the questions are on the scientific and disaster aspect of the movie. Half of the rest are on real disasters such as earthquakes or volcanic eruptions. Questions to be answered are selected so as to attract much interest not only to earth science but to the story of the movie itself to keep fun for the readers. As the movie and 'Q and A' are

  12. Exploring Themes in the Movie Australia on Culture Identity Theories

    Institute of Scientific and Technical Information of China (English)

    王成珍

    2014-01-01

    Gathering the history and emotions of the nation of Australia, the movie Australia not only reflects Australians’exer-tion to construct an equal harmonious diversified new Australia but also incarnates Australian people ’s nisus to pursue the sense of belonging internally and seek international recognition externally. In order to expand the perspective of researching this movie and give enlightenment on constructing an equal harmonious diversified international community, based on culture identity theo-ries, this paper tries exploring the themes of this movie.

  13. iMovie '09 & iDVD pocket genius

    CERN Document Server

    Hart-Davis, Guy

    2010-01-01

    If you want to get the very most out of iMovie '09 or iDVD, put this savvy Portable Genius to work. Want to quickly turn raw footage into a polished movie? Crop, rotate, or delete clips? Add background music or sound effects? Customize your iDVD themes? You'll find cool and useful Genius tips, insider secrets, full-color screenshots, and pages of easy-to-access shortcuts and tools that will save you loads of time and let you enjoy iMovie '09 and iDVD to the max.

  14. Computer Software Configuration Item-Specific Flight Software Image Transfer Script Generator

    Science.gov (United States)

    Bolen, Kenny; Greenlaw, Ronald

    2010-01-01

    A K-shell UNIX script enables the International Space Station (ISS) Flight Control Team (FCT) operators in NASA s Mission Control Center (MCC) in Houston to transfer an entire or partial computer software configuration item (CSCI) from a flight software compact disk (CD) to the onboard Portable Computer System (PCS). The tool is designed to read the content stored on a flight software CD and generate individual CSCI transfer scripts that are capable of transferring the flight software content in a given subdirectory on the CD to the scratch directory on the PCS. The flight control team can then transfer the flight software from the PCS scratch directory to the Electronically Erasable Programmable Read Only Memory (EEPROM) of an ISS Multiplexer/ Demultiplexer (MDM) via the Indirect File Transfer capability. The individual CSCI scripts and the CSCI Specific Flight Software Image Transfer Script Generator (CFITSG), when executed a second time, will remove all components from their original execution. The tool will identify errors in the transfer process and create logs of the transferred software for the purposes of configuration management.

  15. Computational Analysis of a Thermoelectric Generator for Waste-Heat Harvesting in Wearable Systems

    Science.gov (United States)

    Kossyvakis, D. N.; Vassiliadis, S. G.; Vossou, C. G.; Mangiorou, E. E.; Potirakis, S. M.; Hristoforou, E. V.

    2016-06-01

    Over recent decades, a constantly growing interest in the field of portable electronic devices has been observed. Recent developments in the scientific areas of integrated circuits and sensing technologies have enabled realization and design of lightweight low-power wearable sensing systems that can be of great use, especially for continuous health monitoring and performance recording applications. However, to facilitate wide penetration of such systems into the market, the issue of ensuring their seamless and reliable power supply still remains a major concern. In this work, the performance of a thermoelectric generator, able to exploit the temperature difference established between the human body and the environment, has been examined computationally using ANSYS 14.0 finite-element modeling (FEM) software, as a means for providing the necessary power to various portable electronic systems. The performance variation imposed due to different thermoelement geometries has been estimated to identify the most appropriate solution for the considered application. Furthermore, different ambient temperature and heat exchange conditions between the cold side of the generator and the environment have been investigated. The computational analysis indicated that power output in the order of 1.8 mW can be obtained by a 100-cm2 system, if specific design criteria can be fulfilled.

  16. Using Python to generate AHPS-based precipitation simulations over CONUS using Amazon distributed computing

    Science.gov (United States)

    Machalek, P.; Kim, S. M.; Berry, R. D.; Liang, A.; Small, T.; Brevdo, E.; Kuznetsova, A.

    2012-12-01

    We describe how the Climate Corporation uses Python and Clojure, a language impleneted on top of Java, to generate climatological forecasts for precipitation based on the Advanced Hydrologic Prediction Service (AHPS) radar based daily precipitation measurements. A 2-year-long forecasts is generated on each of the ~650,000 CONUS land based 4-km AHPS grids by constructing 10,000 ensembles sampled from a 30-year reconstructed AHPS history for each grid. The spatial and temporal correlations between neighboring AHPS grids and the sampling of the analogues are handled by Python. The parallelization for all the 650,000 CONUS stations is further achieved by utilizing the MAP-REDUCE framework (http://code.google.com/edu/parallel/mapreduce-tutorial.html). Each full scale computational run requires hundreds of nodes with up to 8 processors each on the Amazon Elastic MapReduce (http://aws.amazon.com/elasticmapreduce/) distributed computing service resulting in 3 terabyte datasets. We further describe how we have productionalized a monthly run of the simulations process at full scale of the 4km AHPS grids and how the resultant terabyte sized datasets are handled.

  17. A general method for generating bathymetric data for hydrodynamic computer models

    Science.gov (United States)

    Burau, J.R.; Cheng, R.T.

    1989-01-01

    To generate water depth data from randomly distributed bathymetric data for numerical hydrodymamic models, raw input data from field surveys, water depth data digitized from nautical charts, or a combination of the two are sorted to given an ordered data set on which a search algorithm is used to isolate data for interpolation. Water depths at locations required by hydrodynamic models are interpolated from the bathymetric data base using linear or cubic shape functions used in the finite-element method. The bathymetric database organization and preprocessing, the search algorithm used in finding the bounding points for interpolation, the mathematics of the interpolation formulae, and the features of the automatic generation of water depths at hydrodynamic model grid points are included in the analysis. This report includes documentation of two computer programs which are used to: (1) organize the input bathymetric data; and (2) to interpolate depths for hydrodynamic models. An example of computer program operation is drawn from a realistic application to the San Francisco Bay estuarine system. (Author 's abstract)

  18. Cagen:. a Modern, PC Based Computer Modeling Tool for Explosive MCG Generators and Attached Loads

    Science.gov (United States)

    Chase, J. B.; Chato, D.; Peterson, G.; Pincosy, P.; Kiuttu, G. F.

    2004-11-01

    We will describe the PC based computer program CAGEN. CAGEN models the performance of many varieties of Magneto-Cumulative-Generators (MCG) or Magnetic Flux Compression Generators (FCG) that are energized with High Explosive (HE). CAGEN models helical wound or coaxial types, which have HE on the interior. Any materials and any HE types may be used. The cylindrical radius of the windings (or outer conductor) and the radius of the armature may vary with axial position. Variable winding width, thickness, and pitch can be represented, and divided windings are allowed. The MHD equations are used to advance the diffusion of magnetic field into the conductors in order to compute resistance, melting, and contact effects. Magnetic pressure effects are included. The MCG model is treated as part of a lumped circuit, which includes the priming circuit, an opening fuse switch, an inline storage inductance, a transformer or a voltage dividing fuse, peaking-circuit, and several interesting load models. A typical problem will complete in a few seconds to a few minutes. Graphical input, run control, and analysis of results is provided by MathGraf, which is a CARE'N CO. application.

  19. Computer electric design of synchronous generators; Diseno electrico de generadores sincronos por computadora

    Energy Technology Data Exchange (ETDEWEB)

    Patlan Frausto, Jose O.; Acosta Aradillas, Juan [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1986-12-31

    In this article are presented, in a conceptual manner the main elements that participate in the electric design of synchronous generators. Also, other options are presented for computers utilization as a design support. Afterwards, a computer program developed by the Instituto de Investigaciones Electricas (IIE) for the electric design of projecting poles generators is presented, oriented towards obtaining their electro-magnetic dimensioning. Finally, with the purpose of validating this program, the results obtained in a specific case, are presented. [Espanol] En este articulo se presentan, de manera conceptual, los principales elementos que participan en el proceso de diseno electrico de generadores sincronos. Tambien se plantean otras opciones para utilizar las computadoras como apoyo de diseno. Posteriormente, se describe un programa de computo desarrollado en el Instituto de Investigaciones Electricas (IIE) para el diseno electrico de generadores de polos salientes, orientado a obtener su dimensionamiento electromagnetico. Por ultimo, con el proposito de validar este programa, se presentan los resultados obtenidos en un caso particular.

  20. Affective video retrieval: violence detection in Hollywood movies by large-scale segmental feature extraction.

    Science.gov (United States)

    Eyben, Florian; Weninger, Felix; Lehment, Nicolas; Schuller, Björn; Rigoll, Gerhard

    2013-01-01

    Without doubt general video and sound, as found in large multimedia archives, carry emotional information. Thus, audio and video retrieval by certain emotional categories or dimensions could play a central role for tomorrow's intelligent systems, enabling search for movies with a particular mood, computer aided scene and sound design in order to elicit certain emotions in the audience, etc. Yet, the lion's share of research in affective computing is exclusively focusing on signals conveyed by humans, such as affective speech. Uniting the fields of multimedia retrieval and affective computing is believed to lend to a multiplicity of interesting retrieval applications, and at the same time to benefit affective computing research, by moving its methodology "out of the lab" to real-world, diverse data. In this contribution, we address the problem of finding "disturbing" scenes in movies, a scenario that is highly relevant for computer-aided parental guidance. We apply large-scale segmental feature extraction combined with audio-visual classification to the particular task of detecting violence. Our system performs fully data-driven analysis including automatic segmentation. We evaluate the system in terms of mean average precision (MAP) on the official data set of the MediaEval 2012 evaluation campaign's Affect Task, which consists of 18 original Hollywood movies, achieving up to .398 MAP on unseen test data in full realism. An in-depth analysis of the worth of individual features with respect to the target class and the system errors is carried out and reveals the importance of peak-related audio feature extraction and low-level histogram-based video analysis.

  1. Affective video retrieval: violence detection in Hollywood movies by large-scale segmental feature extraction.

    Directory of Open Access Journals (Sweden)

    Florian Eyben

    Full Text Available Without doubt general video and sound, as found in large multimedia archives, carry emotional information. Thus, audio and video retrieval by certain emotional categories or dimensions could play a central role for tomorrow's intelligent systems, enabling search for movies with a particular mood, computer aided scene and sound design in order to elicit certain emotions in the audience, etc. Yet, the lion's share of research in affective computing is exclusively focusing on signals conveyed by humans, such as affective speech. Uniting the fields of multimedia retrieval and affective computing is believed to lend to a multiplicity of interesting retrieval applications, and at the same time to benefit affective computing research, by moving its methodology "out of the lab" to real-world, diverse data. In this contribution, we address the problem of finding "disturbing" scenes in movies, a scenario that is highly relevant for computer-aided parental guidance. We apply large-scale segmental feature extraction combined with audio-visual classification to the particular task of detecting violence. Our system performs fully data-driven analysis including automatic segmentation. We evaluate the system in terms of mean average precision (MAP on the official data set of the MediaEval 2012 evaluation campaign's Affect Task, which consists of 18 original Hollywood movies, achieving up to .398 MAP on unseen test data in full realism. An in-depth analysis of the worth of individual features with respect to the target class and the system errors is carried out and reveals the importance of peak-related audio feature extraction and low-level histogram-based video analysis.

  2. Design and Implementation of a Cloud Computing Adoption Decision Tool: Generating a Cloud Road.

    Science.gov (United States)

    Bildosola, Iñaki; Río-Belver, Rosa; Cilleruelo, Ernesto; Garechana, Gaizka

    2015-01-01

    Migrating to cloud computing is one of the current enterprise challenges. This technology provides a new paradigm based on "on-demand payment" for information and communication technologies. In this sense, the small and medium enterprise is supposed to be the most interested, since initial investments are avoided and the technology allows gradual implementation. However, even if the characteristics and capacities have been widely discussed, entry into the cloud is still lacking in terms of practical, real frameworks. This paper aims at filling this gap, presenting a real tool already implemented and tested, which can be used as a cloud computing adoption decision tool. This tool uses diagnosis based on specific questions to gather the required information and subsequently provide the user with valuable information to deploy the business within the cloud, specifically in the form of Software as a Service (SaaS) solutions. This information allows the decision makers to generate their particular Cloud Road. A pilot study has been carried out with enterprises at a local level with a two-fold objective: to ascertain the degree of knowledge on cloud computing and to identify the most interesting business areas and their related tools for this technology. As expected, the results show high interest and low knowledge on this subject and the tool presented aims to readdress this mismatch, insofar as possible.

  3. Evaluation and characterization of fetal exposures to low frequency magnetic fields generated by laptop computers.

    Science.gov (United States)

    Zoppetti, Nicola; Andreuccetti, Daniele; Bellieni, Carlo; Bogi, Andrea; Pinto, Iole

    2011-12-01

    Portable - or "laptop" - computers (LCs) are widely and increasingly used all over the world. Since LCs are often used in tight contact with the body even by pregnant women, fetal exposures to low frequency magnetic fields generated by these units can occur. LC emissions are usually characterized by complex waveforms and are often generated by the main AC power supply (when connected) and by the display power supply sub-system. In the present study, low frequency magnetic field emissions were measured for a set of five models of portable computers. For each of them, the magnetic flux density was characterized in terms not just of field amplitude, but also of the so called "weighted peak" (WP) index, introduced in the 2003 ICNIRP Statement on complex waveforms and confirmed in the 2010 ICNIRP Guidelines for low frequency fields. For the model of LC presenting the higher emission, a deeper analysis was also carried out, using numerical dosimetry techniques to calculate internal quantities (current density and in-situ electric field) with reference to a digital body model of a pregnant woman. Since internal quantities have complex waveforms too, the concept of WP index was extended to them, considering the ICNIRP basic restrictions defined in the 1998 Guidelines for the current density and in the 2010 Guidelines for the in-situ electric field. Induced quantities and WP indexes were computed using an appropriate original formulation of the well known Scalar Potential Finite Difference (SPFD) numerical method for electromagnetic dosimetry in quasi-static conditions. Copyright © 2011 Elsevier Ltd. All rights reserved.

  4. Integrating Publicly Available Data to Generate Computationally Predicted Adverse Outcome Pathways for Fatty Liver.

    Science.gov (United States)

    Bell, Shannon M; Angrish, Michelle M; Wood, Charles E; Edwards, Stephen W

    2016-04-01

    Newin vitrotesting strategies make it possible to design testing batteries for large numbers of environmental chemicals. Full utilization of the results requires knowledge of the underlying biological networks and the adverse outcome pathways (AOPs) that describe the route from early molecular perturbations to an adverse outcome. Curation of a formal AOP is a time-intensive process and a rate-limiting step to designing these test batteries. Here, we describe a method for integrating publicly available data in order to generate computationally predicted AOP (cpAOP) scaffolds, which can be leveraged by domain experts to shorten the time for formal AOP development. A network-based workflow was used to facilitate the integration of multiple data types to generate cpAOPs. Edges between graph entities were identified through direct experimental or literature information, or computationally inferred using frequent itemset mining. Data from the TG-GATEs and ToxCast programs were used to channel large-scale toxicogenomics information into a cpAOP network (cpAOPnet) of over 20 000 relationships describing connections between chemical treatments, phenotypes, and perturbed pathways as measured by differential gene expression and high-throughput screening targets. The resulting fatty liver cpAOPnet is available as a resource to the community. Subnetworks of cpAOPs for a reference chemical (carbon tetrachloride, CCl4) and outcome (fatty liver) were compared with published mechanistic descriptions. In both cases, the computational approaches approximated the manually curated AOPs. The cpAOPnet can be used for accelerating expert-curated AOP development and to identify pathway targets that lack genomic markers or high-throughput screening tests. It can also facilitate identification of key events for designing test batteries and for classification and grouping of chemicals for follow up testing.

  5. Effects of alcohol portrayals in movies on actual alcohol consumption: an observational experimental study

    NARCIS (Netherlands)

    Koordeman, R.; Anschutz, D.J.; van Baaren, R.B.; Engels, R.C.M.E.

    2011-01-01

    Aims This study uses an experimental design to assess the effects of movie alcohol portrayal on alcohol consumption of young adults while watching a movie. Gender, weekly alcohol use and identification with the movie actor/character were assessed as moderators. Design A two (sex) × two (movie:

  6. Effects of alcohol portrayals in movies on actual alcohol consumption: An observational experimental study

    NARCIS (Netherlands)

    Koordeman, R.; Anschutz, D.J.; Baaren, R.B. van; Engels, R.C.M.E.

    2011-01-01

    Aims - This study uses an experimental design to assess the effects of movie alcohol portrayal on alcohol consumption of young adults while watching a movie. Gender, weekly alcohol use and identification with the movie actor/character were assessed as moderators. Design - A two (sex) x two (movie:

  7. Effects of alcohol portrayals in movies on actual alcohol consumption: an observational experimental study

    NARCIS (Netherlands)

    Koordeman, R.; Anschutz, D.J.; van Baaren, R.B.; Engels, R.C.M.E.

    2011-01-01

    Aims This study uses an experimental design to assess the effects of movie alcohol portrayal on alcohol consumption of young adults while watching a movie. Gender, weekly alcohol use and identification with the movie actor/character were assessed as moderators. Design A two (sex) × two (movie: alcoh

  8. Pragmatics and Semiotics: Movies as Aesthetic Audio-Visual Device Expedite Second Language Acquisition

    Science.gov (United States)

    Lu, Lucia Y.

    2014-01-01

    The author as teacher educator and her students as teacher candidates conceptualized pragmatics, semiotics and aesthetics into literacy education by inviting students of diversity to watch movies, talk about movies, write movies, and act movies. Pragmatics is the study of how language is used for communication in various social and cultural…

  9. Multistep greedy algorithm identifies community structure in real-world and computer-generated networks

    CERN Document Server

    Schuetz, Philipp

    2008-01-01

    We have recently introduced a multistep extension of the greedy algorithm for modularity optimization. The extension is based on the idea that merging l pairs of communities (l>1) at each iteration prevents premature condensation into few large communities. Here, an empirical formula is presented for the choice of the step width l that generates partitions with (close to) optimal modularity for 17 real-world and 1100 computer-generated networks. Furthermore, an in-depth analysis of the communities of two real-world networks (the metabolic network of the bacterium E. coli and the graph of coappearing words in the titles of papers coauthored by Martin Karplus) provides evidence that the partition obtained by the multistep greedy algorithm is superior to the one generated by the original greedy algorithm not only with respect to modularity but also according to objective criteria. In other words, the multistep extension of the greedy algorithm reduces the danger of getting trapped in local optima of modularity a...

  10. DISTRIBUTED LEADERSHIP COLLABORATION FACTORS TO SUPPORT IDEA GENERATION IN COMPUTER-SUPPORTED COLLABORATIVE e-LEARNING

    Directory of Open Access Journals (Sweden)

    Niki Lambropoulos

    2011-01-01

    Full Text Available This paper aims to identify, discuss and analyze students’ collaboration factors related to distributed leadership (DL, which correlates with interaction quality evident in idea generation. Scripting computer-supported collaborative e-learning (CSCeL activities based on DL can scaffold students’ interactions that support collaboration and promote idea generation. Furthermore, the associated tools can facilitate collaboration via scripting and shed light on students’ interactions and dialogical sequences. Such detailed planning can result in effective short e-courses. In this case study, 21 MSc students’ teams worked on a DL project within a 2-day e-course at the IT Institute (ITIN, France. The research methods involved a self-reported questionnaire; the Non-Negative Matrix Factorization (NNMF algorithm with qualitative analysis; and outcomes from the Social Network Analysis (SNA tools implemented within the forums. The results indicated that scripting DL based on the identified distributed leadership attributes can support values such as collaboration and can be useful in supporting idea generation in short e-courses.

  11. Brushless DC motor control system responsive to control signals generated by a computer or the like

    Science.gov (United States)

    Packard, Douglas T. (Inventor); Schmitt, Donald E. (Inventor)

    1987-01-01

    A control system for a brushless DC motor responsive to digital control signals is disclosed. The motor includes a multiphase wound stator and a permanent magnet rotor. The rotor is arranged so that each phase winding, when energized from a DC source, will drive the rotor through a predetermined angular position or step. A commutation signal generator responsive to the shaft position provides a commutation signal for each winding. A programmable control signal generator such as a computer or microprocessor produces individual digital control signals for each phase winding. The control signals and commutation signals associated with each winding are applied to an AND gate for that phase winding. Each gate controls a switch connected in series with the associated phase winding and the DC source so that each phase winding is energized only when the commutation signal and the control signal associated with that phase winding are present. The motor shaft may be advanced one step at a time to a desired position by applying a predetermined number of control signals in the proper sequence to the AND gates and the torque generated by the motor may be regulated by applying a separate control signal to each AND gate which is pulse width modulated to control the total time that each switch connects its associated winding to the DC source during each commutation period.

  12. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Sections Are 3-D Movies Bad for Your Eyes? Jul. 09, 2013 With the popularity of 3- ... if any, effect the technology has on your eyes. Is 3-D technology healthy for your or ...

  13. Cringing in the Dark: Book Abuse in the Movies.

    Science.gov (United States)

    Szmuk, Szilvia E.

    2000-01-01

    This satirical essay discusses the mistreatment of books as portrayed in various movies. Author questions if it would end book abuse on the silver screen, would some prudent censorship be so bad? (LRW)

  14. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Foundation About Subspecialties & More Academy Publications EyeNet ... no reason to be concerned that 3-D movies, TV or video games will damage the eyes or visual system. Some people complain of headaches or motion sickness ...

  15. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Subspecialties & More Academy Publications EyeNet Ophthalmology Ophthalmology ... no reason to be concerned that 3-D movies, TV or video games will damage the eyes or visual system. Some people complain of headaches or motion sickness ...

  16. The Influence of Hollywood Movies on Chinese Culture

    Institute of Scientific and Technical Information of China (English)

    何艳红

    2012-01-01

    With its rapid development in China,Hollywood movie shave become indispensable for the Chinese movie market and inevitably exert strong influence on Chinese people.After enough exposure to the movies, people find the differences in culture between America and China,and make imperceptible changes, thus affecting Chinese traditional culture. In this paper,the writer gives a brief introduction of Hollywood’s development in China,and proceeds the paper with analysis of influences that Hollywood movie shave brought to Chinese people.The writer illustrates both the positive and negative influences,and analyzes the main causes to those influences.At last,the writer provides some suggestions about culture invasion.

  17. Balazs: The Dilemmas of Humanism in the Movies

    Science.gov (United States)

    Stolnitz, Jerome

    1976-01-01

    The tension between a humanism that is essentially classical and insistence on respect for the uniqueness of movies is most acute in Balazs. This paper undertakes to bring this tension to light and to specify it. (Author/RK)

  18. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... 3-D movies, TV or video games will damage the eyes or visual system. Some people complain ... device's digital images, in order to avoid possible damage to visual development. Should parents be concerned? If ...

  19. On the Translation Methods of the Subtitle in English Movies

    Institute of Scientific and Technical Information of China (English)

    宋志光

    2014-01-01

    English movie translation is a new field, especially subtitle translation. In recent years, with a large number of introduc-ing foreign language movie, people on the audio and visual arts understanding and demand is going on with each passing day change, people’s level to the foreign movie appreciation increase quickly. This requires the accuracy and rationality in subtitle translation. Subtitle translation is a kind of special language conversion type, in theory contains three basic elements:interlanguag-es information transfer, discourse of simplified or concentrate, and speaking into the written language. This thesis through to the English subtitles translate the study of the method of subtitle translation principles to be followed and the present subtitle transla-tion problems are discussed in order to improve the quality of English movie subtitling translation.

  20. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... movies, it's natural to wonder what, if any, effect the technology has on your eyes. Is 3-D technology healthy for your or your children's eyes? Although there are no long-term studies, ...

  1. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Eye Health A-Z Symptoms Glasses & Contacts Tips & Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / Tips & Prevention Sections Are 3-D Movies Bad for Your ...

  2. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Eye Health A-Z Symptoms Glasses & Contacts Tips & Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / Tips & Prevention Sections Are 3-D Movies Bad for Your ...

  3. A dangerous movie? Hollywood does psychoanalysis.

    Science.gov (United States)

    Ferrell, Donald R; Silverman, Martin A

    2014-12-01

    After the appearance of David Cronenberg's film A Dangerous Method in 2011, dealing with the relationships of Sigmund Freud, C. G. Jung and Sabina Spielrein, Dr. Donald Ferrell published: A Dangerous Method, A Film Directed by David Cronenberg: An Extended Review (Ferrell 2012) in the Journal of Religion and Health. Upon its publication, Dr. Ferrell's article was nominated for a Gradiva Award by the National Association for the Advancement of Psychoanalysis. On November 1, 2013, the Association for the Psychoanalysis of Culture and Society held its annual conference at Rutgers University, New Brunswick, NJ. Dr. Billie Pivnick, a member at large of the Board of Directors of the APCS and also on the Editorial Board of the Journal of Religion and Health, persuaded the 2013 Conference Program Committee that Cronenberg's film would make an interesting subject for discussion for conference participants. To that end, Dr. Pivnick invited Dr. Ferrell, C. G. Jung Institute of New York, Dr. Steven Reisner, Coalition for an Ethical Psychology, and Dr. Martin Silverman, Training and Supervising Analyst and Supervising Child Analyst at the Institute for Psychoanalytic Education, NYU College of Medicine, Training and Supervising Analyst at the Center for Psychotherapy and Psychoanalysis of New Jersey, and Associate Editor of The Psychoanalytic Quarterly to serve as panel members to discuss: A Dangerous Movie? Hollywood does Psychoanalysis. Presentations on Cronenberg's film and the early history of psychoanalysis were given by Drs. Ferrell and Reisner, followed by a response to their presentations by Dr. Silverman. Dr. Pivnick chaired the session. The articles presented here were given originally at the APCS conference by Dr. Ferrell and Dr. Silverman. Dr. Reisner declined the invitation to submit his presentation for publication. Dr. Silverman's remarks were based not only on the presentation given by Dr. Ferrell at the session on A Dangerous Movie?, but also on his close and

  4. Gender and Speech in a Disney Princess Movie

    OpenAIRE

    Azmi N.J.; Radzuwan Ab Rashid; Mairas Abd Rahman; Safawati Basirah, Z.

    2016-01-01

    One of the latest Disney princess movies is Frozen which was released in 2013. Female characters in Frozen differ from the female characters in previous Disney movies, such as The Little Mermaid and Tangled. In comparison, female characters in Frozen are portrayed as having more heroic values and norms, which makes it interesting to examine their speech characteristics. Do they use typical female speech despite having more heroic characteristics? This paper aims to provide insights into the f...

  5. Scaffolding High School Students' Divergent Idea Generation in a Computer-Mediated Design and Technology Learning Environment

    Science.gov (United States)

    Yeo, Tiong-Meng; Quek, Choon-Lang

    2014-01-01

    This comparative study investigates how two groups of design and technology students generated ideas in an asynchronous computer-mediated communication setting. The generated ideas were design ideas in the form of sketches. Each group comprised five students who were all 15 years of age. All the students were from the same secondary school but…

  6. Rating of personality disorder features in popular movie characters

    Directory of Open Access Journals (Sweden)

    Schliewe Sanna

    2005-12-01

    Full Text Available Abstract Background Tools for training professionals in rating personality disorders are few. We present one such tool: rating of fictional persons. However, before ratings of fictional persons can be useful, we need to know whether raters get the same results, when rating fictional characters. Method Psychology students at the University of Copenhagen (N = 8 rated four different movie characters from four movies based on three systems: Global rating scales representing each of the 10 personality disorders in the DSM-IV, a criterion list of all criteria for all DSM-IV personality disorders in random order, and the Ten Item Personality Inventory for rating the five-factor model. Agreement was estimated based on intraclass-correlation. Results Agreement for rating scales for personality disorders ranged from 0.04 to 0.54. For personality disorder features based on DSM-IV criteria, agreement ranged from 0.24 to 0.89, and agreement for the five-factor model ranged from 0.05 to 0.88. The largest multivariate effect was observed for criteria count followed by the TIPI, followed by rating scales. Raters experienced personality disorder criteria as the easiest, and global personality disorder scales as the most difficult, but with significant variation between movies. Conclusion Psychology students with limited or no clinical experience can agree well on the personality traits of movie characters based on watching the movie. Rating movie characters may be a way to practice assessment of personality.

  7. Twitter Sentiment Analysis of Movie Reviews using Machine Learning Techniques.

    Directory of Open Access Journals (Sweden)

    Akshay Amolik

    2015-12-01

    Full Text Available Sentiment analysis is basically concerned with analysis of emotions and opinions from text. We can refer sentiment analysis as opinion mining. Sentiment analysis finds and justifies the sentiment of the person with respect to a given source of content. Social media contain huge amount of the sentiment data in the form of tweets, blogs, and updates on the status, posts, etc. Sentiment analysis of this largely generated data is very useful to express the opinion of the mass. Twitter sentiment analysis is tricky as compared to broad sentiment analysis because of the slang words and misspellings and repeated characters. We know that the maximum length of each tweet in Twitter is 140 characters. So it is very important to identify correct sentiment of each word. In our project we are proposing a highly accurate model of sentiment analysis of tweets with respect to latest reviews of upcoming Bollywood or Hollywood movies. With the help of feature vector and classifiers such as Support vector machine and Naïve Bayes, we are correctly classifying these tweets as positive, negative and neutral to give sentiment of each tweet.

  8. Make Movies out of Your Dynamical Simulations with OGRE!

    Science.gov (United States)

    Tamayo, Daniel; Douglas, R. W.; Ge, H. W.; Burns, J. A.

    2014-01-01

    We have developed OGRE, the Orbital GRaphics Environment, an open-source project comprising a graphical user interface that allows the user to view the output from several dynamical integrators (e.g., SWIFT) that are commonly used for academic work. One can interactively vary the display speed, rotate the view and zoom the camera. This makes OGRE a great tool for students or the general public to explore accurate orbital histories that may display interesting dynamical features, e.g. the destabilization of Solar System orbits under the Nice model, or interacting pairs of exoplanets. Furthermore, OGRE allows the user to choreograph sequences of transformations as the simulation is played to generate movies for use in public talks or professional presentations. The graphical user interface is coded using Qt to ensure portability across different operating systems. OGRE will run on Linux and Mac OS X. The program is available as a self-contained executable, or as source code that the user can compile. We are continually updating the code, and hope that people who find it useful will contribute to the development of new features.

  9. BioPig: Developing Cloud Computing Applications for Next-Generation Sequence Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Bhatia, Karan; Wang, Zhong

    2011-03-22

    Next Generation sequencing is producing ever larger data sizes with a growth rate outpacing Moore's Law. The data deluge has made many of the current sequenceanalysis tools obsolete because they do not scale with data. Here we present BioPig, a collection of cloud computing tools to scale data analysis and management. Pig is aflexible data scripting language that uses Apache's Hadoop data structure and map reduce framework to process very large data files in parallel and combine the results.BioPig extends Pig with capability with sequence analysis. We will show the performance of BioPig on a variety of bioinformatics tasks, including screeningsequence contaminants, Illumina QA/QC, and gene discovery from metagenome data sets using the Rumen metagenome as an example.

  10. Silicon photomultiplier choice for the scintillating fibre tracker in second generation proton computed tomography scanner

    Energy Technology Data Exchange (ETDEWEB)

    Gearhart, A.; Johnson, E.; Medvedev, V.; /Northern Illinois U.; Ronzhin, A.; /Fermilab; Rykalin, V.; /Northern Illinois U.; Rubinov, P.; /Fermilab; Sleptcov, V.; /Unlisted, RU

    2012-03-01

    Scintillating fibers are capable of charged particle tracking with high position resolution, as demonstrated by the central fiber tracker of the D0 experiment. The charged particles will deposit less energy in the polystyrene scintillating fibers as opposed to a typical silicon tracker of the same thickness, while SiPM's are highly efficient at detecting photons created by the passage of the charged particle through the fibers. The current prototype of the Proton Computed Tomography (pCT) tracker uses groups of three 0.5 mm green polystyrene based scintillating fibers connected to a single SiPM, while first generation prototype tracker used Silicon strip detectors. The results of R&D for the Scintillating Fiber Tracker (SFT) as part of the pCT detector are outlined, and the premise for the selection of SiPM is discussed.

  11. Comparison of functional MRI image realignment tools using a computer-generated phantom.

    Science.gov (United States)

    Morgan, V L; Pickens, D R; Hartmann, S L; Price, R R

    2001-09-01

    This study discusses the development of a computer-generated phantom to compare the effects of image realignment programs on functional MRI (fMRI) pixel activation. The phantom is a whole-head MRI volume with added random noise, activation, and motion. It allows simulation of realistic head motions with controlled areas of activation. Without motion, the phantom shows the effects of realignment on motion-free data sets. Prior to realignment, the phantom illustrates some activation corruption due to motion. Finally, three widely used realignment packages are examined. The results showed that the most accurate algorithms are able to increase specificity through accurate realignment while maintaining sensitivity through effective resampling techniques. In fact, accurate realignment alone is not a powerful indicator of the most effective algorithm in terms of true activation.

  12. Judgement heuristics and bias in evidence interpretation: The effects of computer generated exhibits.

    Science.gov (United States)

    Norris, Gareth

    2015-01-01

    The increasing use of multi-media applications, trial presentation software and computer generated exhibits (CGE) has raised questions as to the potential impact of the use of presentation technology on juror decision making. A significant amount of the commentary on the manner in which CGE exerts legal influence is largely anecdotal; empirical examinations too are often devoid of established theoretical rationalisations. This paper will examine a range of established judgement heuristics (for example, the attribution error, representativeness, simulation), in order to establish their appropriate application for comprehending legal decisions. Analysis of both past cases and empirical studies will highlight the potential for heuristics and biases to be restricted or confounded by the use of CGE. The paper will conclude with some wider discussion on admissibility, access to justice, and emerging issues in the use of multi-media in court.

  13. A lensless optical security system based on computer-generated phase only masks

    Science.gov (United States)

    Situ, Guohai; Zhang, Jingjuan

    2004-03-01

    A lensless optical security system based on computer generated phase only masks is proposed in the present paper. These masks are located at determined positions along the direction of propagation so as to decrypt the target image. These positions coordinates are used as encoding parameters as well as the wavelength in the encryption process. Compared with previous studies, the proposed system has three significant advantages: first, it is lensless and therefore can minimize the hardware requirement and is much easier to implement. Second, the proposed system uses the wavelength and the position parameters besides the phase codes as additional keys and consequently achieves much higher security. Finally, the encrypted data can be directly transmitted via communication lines and then decrypted with the correct wavelength and the position parameters at the receiver. Applications and implementation considerations of the proposed system are also discussed.

  14. The use of computer-generated color graphic images for transient thermal analysis. [for hypersonic aircraft

    Science.gov (United States)

    Edwards, C. L. W.; Meissner, F. T.; Hall, J. B.

    1979-01-01

    Color computer graphics techniques were investigated as a means of rapidly scanning and interpreting large sets of transient heating data. The data presented were generated to support the conceptual design of a heat-sink thermal protection system (TPS) for a hypersonic research airplane. Color-coded vector and raster displays of the numerical geometry used in the heating calculations were employed to analyze skin thicknesses and surface temperatures of the heat-sink TPS under a variety of trajectory flight profiles. Both vector and raster displays proved to be effective means for rapidly identifying heat-sink mass concentrations, regions of high heating, and potentially adverse thermal gradients. The color-coded (raster) surface displays are a very efficient means for displaying surface-temperature and heating histories, and thereby the more stringent design requirements can quickly be identified. The related hardware and software developments required to implement both the vector and the raster displays for this application are also discussed.

  15. Experimental study on optical image encryption with asymmetric double random phase and computer-generated hologram.

    Science.gov (United States)

    Xi, Sixing; Wang, Xiaolei; Song, Lipei; Zhu, Zhuqing; Zhu, Bowen; Huang, Shuai; Yu, Nana; Wang, Huaying

    2017-04-03

    Optical image encryption, especially double-random-phase-based, is of great interest in information security. In this work, we experimentally demonstrate the security and feasibility of optical image encryption with asymmetric double random phase and computer-generated hologram (CGH) by using spatial light modulator. First of all, the encrypted image modulated by asymmetric double random phase is numerically encoded into real-value CGH. Then, the encoded real-value CGH is loaded on the spatial light modulator and optically decrypted in self-designed experimental system. Experimental decryption results are in agreement with numerical calculations under the prober/mistaken phase keys condition. This optical decryption technology opens a window of optical encryption practical application and shows great potential for digital multimedia product copyright protection and holographic false trademark.

  16. Laser speckle reduction by phase range limited computer generated hologram in laser projection display system.

    Science.gov (United States)

    Chang, Yan-Shuo; Lin, Chia-Hsin; Hsu, Ku-Hui; Hsu, Wei-Feng; Hsiao, Li-Jen; Lin, Hoang Yan

    2014-09-20

    The speckle phenomenon is an annoyance in laser projection display systems. We propose a novel speckle suppression method that utilizes the interference concept on a pixel point, which reduces the speckle contrast (SC) of the project image by limiting the phase distribution range in the optical field. The SC formula is derived in the uniform interval phase range for partially developed speckle conditions, showing that the SC can be lowered by lessening the phase range limitation. In the ideal simulation model, the SC can be reduced from 98.77% to 0% as the phase range limitation varies from 2π to 0. The phase range limitation model is a novel method using a computer generated hologram to provide beam shaping and phase limitation. In a more realistic simulation model, the SC is reduced from 99.18% to 16.68%.

  17. Potentially Low Cost Solution to Extend Use of Early Generation Computed Tomography

    Directory of Open Access Journals (Sweden)

    Tonna, Joseph E

    2010-12-01

    Full Text Available In preparing a case report on Brown-Séquard syndrome for publication, we made the incidental finding that the inexpensive, commercially available three-dimensional (3D rendering software we were using could produce high quality 3D spinal cord reconstructions from any series of two-dimensional (2D computed tomography (CT images. This finding raises the possibility that spinal cord imaging capabilities can be expanded where bundled 2D multi-planar reformats and 3D reconstruction software for CT are not available and in situations where magnetic resonance imaging (MRI is either not available or appropriate (e.g. metallic implants. Given the worldwide burden of trauma and considering the limited availability of MRI and advanced generation CT scanners, we propose an alternative, potentially useful approach to imaging spinal cord that might be useful in areas where technical capabilities and support are limited. [West J Emerg Med. 2010; 11(5:463-466.

  18. Signal window minimum average error algorithm for multi-phase level computer-generated holograms

    Science.gov (United States)

    El Bouz, Marwa; Heggarty, Kevin

    2000-06-01

    This paper extends the article "Signal window minimum average error algorithm for computer-generated holograms" (JOSA A 1998) to multi-phase level CGHs. We show that using the same rule for calculating the complex error diffusion weights, iterative-algorithm-like low-error signal windows can be obtained for any window shape or position (on- or off-axis) and any number of CGH phase levels. Important algorithm parameters such as amplitude normalisation level and phase freedom diffusers are described and investigated to optimize the algorithm. We show that, combined with a suitable diffuser, the algorithm makes feasible the calculation of high performance CGHs far larger than currently practical with iterative algorithms yet now realisable with modern fabrication techniques. Preliminary experimental optical reconstructions are presented.

  19. Phryne: cnidian Venus to movie star

    Directory of Open Access Journals (Sweden)

    Eleonora Cavallini

    2006-02-01

    Full Text Available Phryne, probably the most renowned Greek courtesan (especially because of the famous trial where she was defended by the public speaker Hyperides, was a source of artistic inspiration not only for the Greek sculptor Praxiteles, but also for modern painters, such as Angelica Kauffman, J.M.W. Turner and the French pompiers. In the XX century, Phryne has been "discovered" also by filmmakers. After the successful 'Altri tempi' by A. Blasetti (1952 where a gorgeous Gina Lollobrigida starred as a modern Phryne, Mario Bonnard directed a péplum entitled "Frine, cortigiana d'Oriente" (1953 starring Elena Kleus. Spite of the absurd title, probably chosen by the production with commercial purposes, the movie is not totally lacking in historical interest: Phryne is represented as a war refugee and as a fierce enemy of Alexander the Great, who had destroyed Thebae, chief town of the region where Phryne was born. As a matter of fact, a main role in the screenplay and direction appears to be due to young Sergio Leone.

  20. Zenith Movie showing Phoenix's Lidar Beam (Animation)

    Science.gov (United States)

    2008-01-01

    [figure removed for brevity, see original site] Click on image for animation A laser beam from the Canadian-built lidar instrument on NASA's Phoenix Mars Lander can be seen in this contrast-enhanced sequence of 10 images taken by Phoenix's Surface Stereo Imager on July 26, 2008, during early Martian morning hours of the mission's 61st Martian day after landing. The view is almost straight up and includes about 1.5 kilometer (about 1 mile) of the length of the beam. The camera, from its position close to the lidar on the lander deck, took the images through a green filter centered on light with wavelength 532 nanometers, the same wavelength of the laser beam. The movie has been artificially colored to to approximately match the color that would be seen looking through this filter on Mars. Contrast is enhanced to make the beam more visible. The lidar beam can be seen extending from the lower right to the upper right, near the zenith, as it reflects off particles suspended in the atmosphere. Particles that scatter the beam directly into the camera can be seen to produce brief sparkles of light. In the background, dust can be seen drifting across the sky pushed by winds aloft. The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

  1. Digging Movie from Phoenix's Sol 18

    Science.gov (United States)

    2008-01-01

    The Surface Stereo Imager on NASA's Phoenix Mars Lander recorded the images combined into this movie of the lander's Robotic Arm enlarging and combining the two trenches informally named 'Dodo' (left) and 'Goldilocks.' The 21 images in this sequence were taken over a period of about 2 hours during Phoenix's Sol 18 (June 13, 2008), or the 18th Martian day since landing. The main purpose of the Sol 18 dig was to dig deeper for learning the depth of a hard underlying layer. A bright layer, possibly ice, was increasingly exposed as the digging progressed. Further digging and scraping in the combined Dodo-Goldilocks trench was planned for subsequent sols. The combined trench is about 20 centimeters (about 8 inches) wide. The depth at the end of the Sol 18 digging is 5 to 6 centimeters (about 2 inches). The Goldilocks trench was the source of soil samples 'Baby Bear' and 'Mama Bear,' which were collected on earlier sols and delivered to instruments on the lander deck. The Dodo trench was originally dug for practice in collecting and depositing soil samples. The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

  2. Computational fluid dynamics (CFD) simulations of aerosol in a U-shaped steam generator tube

    Science.gov (United States)

    Longmire, Pamela

    scenario evaluated but ranged from 1.61 to 3.2. At the outlet, the computed AMMD (1.9 mum) had GSD between 1.12 and 2.76. Decontamination factors (DF), computed based on deposition from trajectory calculations, were just over 3.5 for the bend and 4.4 at the outlet. Computed DFs were consistent with expert elicitation cited in NUREG-1150 for aerosol retention in steam generators.

  3. Computational Intelligence and Wavelet Transform Based Metamodel for Efficient Generation of Not-Yet Simulated Waveforms.

    Science.gov (United States)

    Oltean, Gabriel; Ivanciu, Laura-Nicoleta

    2016-01-01

    The design and verification of complex electronic systems, especially the analog and mixed-signal ones, prove to be extremely time consuming tasks, if only circuit-level simulations are involved. A significant amount of time can be saved if a cost effective solution is used for the extensive analysis of the system, under all conceivable conditions. This paper proposes a data-driven method to build fast to evaluate, but also accurate metamodels capable of generating not-yet simulated waveforms as a function of different combinations of the parameters of the system. The necessary data are obtained by early-stage simulation of an electronic control system from the automotive industry. The metamodel development is based on three key elements: a wavelet transform for waveform characterization, a genetic algorithm optimization to detect the optimal wavelet transform and to identify the most relevant decomposition coefficients, and an artificial neuronal network to derive the relevant coefficients of the wavelet transform for any new parameters combination. The resulted metamodels for three different waveform families are fully reliable. They satisfy the required key points: high accuracy (a maximum mean squared error of 7.1x10-5 for the unity-based normalized waveforms), efficiency (fully affordable computational effort for metamodel build-up: maximum 18 minutes on a general purpose computer), and simplicity (less than 1 second for running the metamodel, the user only provides the parameters combination). The metamodels can be used for very efficient generation of new waveforms, for any possible combination of dependent parameters, offering the possibility to explore the entire design space. A wide range of possibilities becomes achievable for the user, such as: all design corners can be analyzed, possible worst-case situations can be investigated, extreme values of waveforms can be discovered, sensitivity analyses can be performed (the influence of each parameter on the

  4. Experimental and computational studies of thermal mixing in next generation nuclear reactors

    Science.gov (United States)

    Landfried, Douglas Tyler

    The Very High Temperature Reactor (VHTR) is a proposed next generation nuclear power plant. The VHTR utilizes helium as a coolant in the primary loop of the reactor. Helium traveling through the reactor mixes below the reactor in a region known as the lower plenum. In this region there exists large temperature and velocity gradients due to non-uniform heat generation in the reactor core. Due to these large gradients, concern should be given to reducing thermal striping in the lower plenum. Thermal striping is the phenomena by which temperature fluctuations in the fluid and transferred to and attenuated by surrounding structures. Thermal striping is a known cause of long term material failure. To better understand and predict thermal striping in the lower plenum two separate bodies of work have been conducted. First, an experimental facility capable of predictably recreating some aspects of flow in the lower plenum is designed according to scaling analysis of the VHTR. Namely the facility reproduces jets issuing into a crossflow past a tube bundle. Secondly, extensive studies investigate the mixing of a non-isothermal parallel round triple-jet at two jet-to-jet spacings was conducted. Experimental results were validation with an open source computational fluid dynamics package, OpenFOAMRTM. Additional care is given to understanding the implementation of the realizable k-a and Launder Gibson RSM turbulence Models in OpenFOAMRTM. In order to measure velocity and temperature in the triple-jet experiment a detailed investigation of temperature compensated hotwire anemometry is carried out with special concern being given to quantify the error with the measurements. Finally qualitative comparisons of trends in the experimental results and the computational results is conducted. A new and unexpected physical behavior was observed in the center jet as it appeared to spread unexpectedly for close spacings (S/Djet = 1.41).

  5. Computational Intelligence and Wavelet Transform Based Metamodel for Efficient Generation of Not-Yet Simulated Waveforms

    Science.gov (United States)

    Oltean, Gabriel; Ivanciu, Laura-Nicoleta

    2016-01-01

    The design and verification of complex electronic systems, especially the analog and mixed-signal ones, prove to be extremely time consuming tasks, if only circuit-level simulations are involved. A significant amount of time can be saved if a cost effective solution is used for the extensive analysis of the system, under all conceivable conditions. This paper proposes a data-driven method to build fast to evaluate, but also accurate metamodels capable of generating not-yet simulated waveforms as a function of different combinations of the parameters of the system. The necessary data are obtained by early-stage simulation of an electronic control system from the automotive industry. The metamodel development is based on three key elements: a wavelet transform for waveform characterization, a genetic algorithm optimization to detect the optimal wavelet transform and to identify the most relevant decomposition coefficients, and an artificial neuronal network to derive the relevant coefficients of the wavelet transform for any new parameters combination. The resulted metamodels for three different waveform families are fully reliable. They satisfy the required key points: high accuracy (a maximum mean squared error of 7.1x10-5 for the unity-based normalized waveforms), efficiency (fully affordable computational effort for metamodel build-up: maximum 18 minutes on a general purpose computer), and simplicity (less than 1 second for running the metamodel, the user only provides the parameters combination). The metamodels can be used for very efficient generation of new waveforms, for any possible combination of dependent parameters, offering the possibility to explore the entire design space. A wide range of possibilities becomes achievable for the user, such as: all design corners can be analyzed, possible worst-case situations can be investigated, extreme values of waveforms can be discovered, sensitivity analyses can be performed (the influence of each parameter on the

  6. Computational Intelligence and Wavelet Transform Based Metamodel for Efficient Generation of Not-Yet Simulated Waveforms.

    Directory of Open Access Journals (Sweden)

    Gabriel Oltean

    Full Text Available The design and verification of complex electronic systems, especially the analog and mixed-signal ones, prove to be extremely time consuming tasks, if only circuit-level simulations are involved. A significant amount of time can be saved if a cost effective solution is used for the extensive analysis of the system, under all conceivable conditions. This paper proposes a data-driven method to build fast to evaluate, but also accurate metamodels capable of generating not-yet simulated waveforms as a function of different combinations of the parameters of the system. The necessary data are obtained by early-stage simulation of an electronic control system from the automotive industry. The metamodel development is based on three key elements: a wavelet transform for waveform characterization, a genetic algorithm optimization to detect the optimal wavelet transform and to identify the most relevant decomposition coefficients, and an artificial neuronal network to derive the relevant coefficients of the wavelet transform for any new parameters combination. The resulted metamodels for three different waveform families are fully reliable. They satisfy the required key points: high accuracy (a maximum mean squared error of 7.1x10-5 for the unity-based normalized waveforms, efficiency (fully affordable computational effort for metamodel build-up: maximum 18 minutes on a general purpose computer, and simplicity (less than 1 second for running the metamodel, the user only provides the parameters combination. The metamodels can be used for very efficient generation of new waveforms, for any possible combination of dependent parameters, offering the possibility to explore the entire design space. A wide range of possibilities becomes achievable for the user, such as: all design corners can be analyzed, possible worst-case situations can be investigated, extreme values of waveforms can be discovered, sensitivity analyses can be performed (the influence of each

  7. Computer-generated vs. physician-documented history of present illness (HPI): results of a blinded comparison.

    Science.gov (United States)

    Almario, Christopher V; Chey, William; Kaung, Aung; Whitman, Cynthia; Fuller, Garth; Reid, Mark; Nguyen, Ken; Bolus, Roger; Dennis, Buddy; Encarnacion, Rey; Martinez, Bibiana; Talley, Jennifer; Modi, Rushaba; Agarwal, Nikhil; Lee, Aaron; Kubomoto, Scott; Sharma, Gobind; Bolus, Sally; Chang, Lin; Spiegel, Brennan M R

    2015-01-01

    Healthcare delivery now mandates shorter visits with higher documentation requirements, undermining the patient-provider interaction. To improve clinic visit efficiency, we developed a patient-provider portal that systematically collects patient symptoms using a computer algorithm called Automated Evaluation of Gastrointestinal Symptoms (AEGIS). AEGIS also automatically "translates" the patient report into a full narrative history of present illness (HPI). We aimed to compare the quality of computer-generated vs. physician-documented HPIs. We performed a cross-sectional study with a paired sample design among individuals visiting outpatient adult gastrointestinal (GI) clinics for evaluation of active GI symptoms. Participants first underwent usual care and then subsequently completed AEGIS. Each individual thereby had both a physician-documented and a computer-generated HPI. Forty-eight blinded physicians assessed HPI quality across six domains using 5-point scales: (i) overall impression, (ii) thoroughness, (iii) usefulness, (iv) organization, (v) succinctness, and (vi) comprehensibility. We compared HPI scores within patient using a repeated measures model. Seventy-five patients had both computer-generated and physician-documented HPIs. The mean overall impression score for computer-generated HPIs was higher than physician HPIs (3.68 vs. 2.80; PComputer-generated HPIs were also judged more complete (3.70 vs. 2.73; PComputer-generated HPIs were of higher overall quality, better organized, and more succinct, comprehensible, complete, and useful compared with HPIs written by physicians during usual care in GI clinics.

  8. Using Computational Intelligence Algorithms to Solve the Coalition Structure Generation Problem in Coalitional Skill Games

    Institute of Scientific and Technical Information of China (English)

    Yang Liu; Guo-Fu Zhang; Zhao-Pin Su; Feng Yue; Jian-Guo Jiang

    2016-01-01

    Coalitional skill games (CSGs) are a simple model of cooperation in an uncertain environment where each agent has a set of skills that are required to accomplish a variety of tasks and each task requires a set of skills to be completed, but each skill is very hard to be quantified and can only be qualitatively expressed. Thus far, many computational questions surrounding CSGs have been studied. However, to the best of our knowledge, the coalition structure generation problem (CSGP), as a central issue of CSGs, is extremely challenging and has not been well solved. To this end, two different computational intelligence algorithms are herein evaluated: binary particle swarm optimization (BPSO) and binary differential evolution (BDE). In particular, we develop the two stochastic search algorithms with two-dimensional binary encoding and corresponding heuristic for individual repairs. After that, we discuss some fundamental properties of the proposed heuristic. Finally, we compare the improved BPSO and BDE with the state-of-the-art algorithms for solving CSGP in CSGs. The experimental results show that our algorithms can find the same near optimal solutions with the existing approaches but take extremely short time, especially under the large problem size.

  9. Clinical and radiographic evaluation of a computer-generated guiding device in bilateral sagittal split osteotomies.

    Science.gov (United States)

    Abdel-Moniem Barakat, Ahmed; Abou-ElFetouh, Adel; Hakam, Maha Mohammed; El-Hawary, Hesham; Abdel-Ghany, Khaled Mahmoud

    2014-07-01

    The bilateral sagittal split osteotomy (BSSO) is one of the main orthognathic surgery procedures used for managing skeletal mandibular excess, deficiency or asymmetry. It is known to be a technique-sensitive procedure with high reported incidences of inferior alveolar nerve injury, bad splits and post-surgical relapse. With the increasing use of computer-assisted techniques in orthognathic surgery, the accurate transfer of the virtual plan to the operating room is currently a subject of research. This study evaluated the efficacy of computer-generated device at maintaining the planned condylar position and minimizing inferior alveolar nerve injury during BSSO. The device was used in 6 patients who required isolated mandibular surgery for correction of their skeletal deformities. Clinical evaluation showed good recovery of the maximal incisal opening and a reproducible occlusion in 5 of the 6 patients. Radiographic evaluation showed better control of the condyle position in both the vertical and anteroposterior directions than in the mediolateral direction. The degree of accuracy between the planned and achieved screw positions were judged as good to excellent in all cases. Within the limitations of this study and the small sample size, the proposed device design allowed for good transfer of the virtual surgical plan to the operating room.

  10. Next Generation Sequence Analysis and Computational Genomics Using Graphical Pipeline Workflows

    Directory of Open Access Journals (Sweden)

    Marquis P. Vawter

    2012-08-01

    Full Text Available Whole-genome and exome sequencing have already proven to be essential and powerful methods to identify genes responsible for simple Mendelian inherited disorders. These methods can be applied to complex disorders as well, and have been adopted as one of the current mainstream approaches in population genetics. These achievements have been made possible by next generation sequencing (NGS technologies, which require substantial bioinformatics resources to analyze the dense and complex sequence data. The huge analytical burden of data from genome sequencing might be seen as a bottleneck slowing the publication of NGS papers at this time, especially in psychiatric genetics. We review the existing methods for processing NGS data, to place into context the rationale for the design of a computational resource. We describe our method, the Graphical Pipeline for Computational Genomics (GPCG, to perform the computational steps required to analyze NGS data. The GPCG implements flexible workflows for basic sequence alignment, sequence data quality control, single nucleotide polymorphism analysis, copy number variant identification, annotation, and visualization of results. These workflows cover all the analytical steps required for NGS data, from processing the raw reads to variant calling and annotation. The current version of the pipeline is freely available at http://pipeline.loni.ucla.edu. These applications of NGS analysis may gain clinical utility in the near future (e.g., identifying miRNA signatures in diseases when the bioinformatics approach is made feasible. Taken together, the annotation tools and strategies that have been developed to retrieve information and test hypotheses about the functional role of variants present in the human genome will help to pinpoint the genetic risk factors for psychiatric disorders.

  11. Next generation sequence analysis and computational genomics using graphical pipeline workflows.

    Science.gov (United States)

    Torri, Federica; Dinov, Ivo D; Zamanyan, Alen; Hobel, Sam; Genco, Alex; Petrosyan, Petros; Clark, Andrew P; Liu, Zhizhong; Eggert, Paul; Pierce, Jonathan; Knowles, James A; Ames, Joseph; Kesselman, Carl; Toga, Arthur W; Potkin, Steven G; Vawter, Marquis P; Macciardi, Fabio

    2012-08-30

    Whole-genome and exome sequencing have already proven to be essential and powerful methods to identify genes responsible for simple Mendelian inherited disorders. These methods can be applied to complex disorders as well, and have been adopted as one of the current mainstream approaches in population genetics. These achievements have been made possible by next generation sequencing (NGS) technologies, which require substantial bioinformatics resources to analyze the dense and complex sequence data. The huge analytical burden of data from genome sequencing might be seen as a bottleneck slowing the publication of NGS papers at this time, especially in psychiatric genetics. We review the existing methods for processing NGS data, to place into context the rationale for the design of a computational resource. We describe our method, the Graphical Pipeline for Computational Genomics (GPCG), to perform the computational steps required to analyze NGS data. The GPCG implements flexible workflows for basic sequence alignment, sequence data quality control, single nucleotide polymorphism analysis, copy number variant identification, annotation, and visualization of results. These workflows cover all the analytical steps required for NGS data, from processing the raw reads to variant calling and annotation. The current version of the pipeline is freely available at http://pipeline.loni.ucla.edu. These applications of NGS analysis may gain clinical utility in the near future (e.g., identifying miRNA signatures in diseases) when the bioinformatics approach is made feasible. Taken together, the annotation tools and strategies that have been developed to retrieve information and test hypotheses about the functional role of variants present in the human genome will help to pinpoint the genetic risk factors for psychiatric disorders.

  12. Simulation of cardiac electrophysiology on next-generation high-performance computers.

    Science.gov (United States)

    Bordas, Rafel; Carpentieri, Bruno; Fotia, Giorgio; Maggio, Fabio; Nobes, Ross; Pitt-Francis, Joe; Southern, James

    2009-05-28

    Models of cardiac electrophysiology consist of a system of partial differential equations (PDEs) coupled with a system of ordinary differential equations representing cell membrane dynamics. Current software to solve such models does not provide the required computational speed for practical applications. One reason for this is that little use is made of recent developments in adaptive numerical algorithms for solving systems of PDEs. Studies have suggested that a speedup of up to two orders of magnitude is possible by using adaptive methods. The challenge lies in the efficient implementation of adaptive algorithms on massively parallel computers. The finite-element (FE) method is often used in heart simulators as it can encapsulate the complex geometry and small-scale details of the human heart. An alternative is the spectral element (SE) method, a high-order technique that provides the flexibility and accuracy of FE, but with a reduced number of degrees of freedom. The feasibility of implementing a parallel SE algorithm based on fully unstructured all-hexahedra meshes is discussed. A major computational task is solution of the large algebraic system resulting from FE or SE discretization. Choice of linear solver and preconditioner has a substantial effect on efficiency. A fully parallel implementation based on dynamic partitioning that accounts for load balance, communication and data movement costs is required. Each of these methods must be implemented on next-generation supercomputers in order to realize the necessary speedup. The problems that this may cause, and some of the techniques that are beginning to be developed to overcome these issues, are described.

  13. War Movies Decoded: Understanding the Logic of War Movie Making from Hollywood to Bollywood and Its Use to Spread Propaganda

    Science.gov (United States)

    2014-04-01

    Introduction War is Cinema and Cinema is War - Paul Virilo World War II: Film and History Why is a war film made? The need to communicate and...using a narrative of non-existent WMD. Therefore, the myth of information transparency in a globalized interconnected world is disputable. While...due to the very nature of the topic is disproportionately interested in the genre of war movies. Gary Freitas in his book War Movies states

  14. Full-color autostereoscopic video display system using computer-generated synthetic phase holograms

    Science.gov (United States)

    Choi, Kyongsik; Kim, Hwi; Lee, Byoungho

    2005-03-01

    A full-color auto-stereoscopic video display system has been introduced and developed using only a single phase-only spatial light modulator, a simple projection lens module, and three laser diode sources with the wavelengths of 635nm (red), 532nm (green), and 473nm (blue). Full-color stereoscopic input video frames are separated by each red, green, and blue component with respect to each stereo eye view for a 3D image frame. Each hologram is then optimized by a modified iterative Fresnel transform algorithm method, for the reconstruction of each gray-level quantized stereo image without color dispersion. To solve the color dispersion problem we applied scaling constraints and phase-leveling techniques for each hologram. Then the optimized holograms are synthesized with direction-multiplexed holograms and modulated by a single phase-type spatial light modulator. The modulated signals are Fourier-transformed by an achromatic lens and redirected to each viewer's eye for the reconstruction of the composed full-color auto-stereoscopic 3D display. Experimentally, we demonstrated that the designed computer-generated holograms were able to generate full-color stereoscopic 3D video images without glasses.

  15. The history of visual magic in computers how beautiful images are made in CAD, 3D, VR and AR

    CERN Document Server

    Peddie, Jon

    2013-01-01

    If you have ever looked at a fantastic adventure or science fiction movie, or an amazingly complex and rich computer game, or a TV commercial where cars or gas pumps or biscuits behaved liked people and wondered, ""How do they do that?"",  then you've experienced the magic of 3D worlds generated by a computer.3D in computers began as a way to represent automotive designs and illustrate the construction of molecules. 3D graphics use evolved to visualizations of simulated data and artistic representations of imaginary worlds. In order to overcome the processing limitations of the computer, graph

  16. Computer-generated recall letters for underimmunized children: how cost-effective?

    Science.gov (United States)

    Lieu, T A; Black, S B; Ray, P; Schwalbe, J A; Lewis, E M; Lavetter, A; Morozumi, P A; Shinefield, H R

    1997-01-01

    To evaluate the effectiveness and cost effectiveness of computer-generated recall letters to parents of children overdue for immunizations. This randomized controlled trial included children of two facilities in a regional health maintenance organization. Parents of 20-month-olds who had not yet received a measles-mumps-rubella (MMR) immunization were identified via a computerized immunization tracking system. One half were mailed personalized letters that included the recommended immunization schedule and a request to call for an appointment; the other half served as a control group. Receipt of the MMR between 20 and 24 months of age was evaluated with the computerized tracking system. A telephone survey was conducted with parents whose children had not received the MMR by 24 months. Decision analysis was used to project the theoretical outcomes and costs of a recall letter policy for other populations. Among 20-month-old children 10% had not received the MMR; 289 families were included in the analysis. Of families who were mailed letters, 54% (82 of 153) received the MMR by 24 months of age, compared with 35% (47 of 136) of those in the control group (P = 0.001). The telephone survey was completed with 110 parents of children who still did not appear on the health plan computer as having received the MMR by 24 months. Fifteen percent said the child had received an immunization at an outside provider, and of the rest 62% said they had not been aware that an immunization was due. In the cost effectiveness analysis it was projected that recall letters would increase the immunization rate for the regional population of approximately 30000 children from 86% to 90% at a total cost of $5031 annually. The cost per additional child appropriately immunized was $4.04. In sensitivity analyses this cost effectiveness ratio varied depending on the baseline population coverage rate as well as the estimated effectiveness of recall letters. Computer-generated letters to recall

  17. Efficient generation of 3D hologram for American Sign Language using look-up table

    Science.gov (United States)

    Park, Joo-Sup; Kim, Seung-Cheol; Kim, Eun-Soo

    2010-02-01

    American Sign Language (ASL) is one of the languages giving the greatest help for communication of the hearing impaired person. Current 2-D broadcasting, 2-D movies are used the ASL to give some information, help understand the situation of the scene and translate the foreign language. These ASL will not be disappeared in future three-dimensional (3-D) broadcasting or 3-D movies because the usefulness of the ASL. On the other hands, some approaches for generation of CGH patterns have been suggested like the ray-tracing method and look-up table (LUT) method. However, these methods have some drawbacks that needs much time or needs huge memory size for look-up table. Recently, a novel LUT (N-LUT) method for fast generation of CGH patterns of 3-D objects with a dramatically reduced LUT without the loss of computational speed was proposed. Therefore, we proposed the method to efficiently generate the holographic ASL in holographic 3DTV or 3-D movies using look-up table method. The proposed method is largely consisted of five steps: construction of the LUT for each ASL images, extraction of characters in scripts or situation, call the fringe patterns for characters in the LUT for each ASL, composition of hologram pattern for 3-D video and hologram pattern for ASL and reconstruct the holographic 3D video with ASL. Some simulation results confirmed the feasibility of the proposed method in efficient generation of CGH patterns for ASL.

  18. DIRECTIVE SPEECH ACT IN THE MOVIE SLEEPING BEAUTY

    Directory of Open Access Journals (Sweden)

    Muhartoyo

    2013-09-01

    Full Text Available Pragmatics is one of linguistics studies that is quite attractive to learn more about. There are many aspects of pragmatics; one of them is dealing with speech acts. Speech acts consist of many categories; one of them is directive speech act. This study aims to identify the directive speech act performed in Sleeping Beauty movie. Likewise, it will find out how often the directive speech act performed and which type of directive speech act that are most frequently used in the movie. This study used qualitative method in which data collection is done by watching the movie, analyzing the body movement and the dialogues of each character, reading the script and library research. A total of 139 directive speech acts were successfully identified. The result of analysis showed that the directive speech act of ordering is the most frequently used in the movie (21,6%. The least frequently used directive speech act is inviting directive speech act (0,7%. The study also revealed the importance of directive speech act in keeping the flow of storyline of the movie. This study is expected to give some useful insights in understanding what directive speech acts is.

  19. FORIG: a computer code for calculating radionuclide generation and depletion in fusion and fission reactors. User's manual

    Energy Technology Data Exchange (ETDEWEB)

    Blink, J.A.

    1985-03-01

    In this manual we describe the use of the FORIG computer code to solve isotope-generation and depletion problems in fusion and fission reactors. FORIG runs on a Cray-1 computer and accepts more extensive activation cross sections than ORIGEN2 from which it was adapted. This report is an updated and a combined version of the previous ORIGEN2 and FORIG manuals. 7 refs., 15 figs., 13 tabs.

  20. Automated high-throughput quantification of mitotic spindle positioning from DIC movies of Caenorhabditis embryos.

    Directory of Open Access Journals (Sweden)

    David Cluet

    Full Text Available The mitotic spindle is a microtubule-based structure that elongates to accurately segregate chromosomes during anaphase. Its position within the cell also dictates the future cell cleavage plan, thereby determining daughter cell orientation within a tissue or cell fate adoption for polarized cells. Therefore, the mitotic spindle ensures at the same time proper cell division and developmental precision. Consequently, spindle dynamics is the matter of intensive research. Among the different cellular models that have been explored, the one-cell stage C. elegans embryo has been an essential and powerful system to dissect the molecular and biophysical basis of spindle elongation and positioning. Indeed, in this large and transparent cell, spindle poles (or centrosomes can be easily detected from simple DIC microscopy by human eyes. To perform quantitative and high-throughput analysis of spindle motion, we developed a computer program ACT for Automated-Centrosome-Tracking from DIC movies of C. elegans embryos. We therefore offer an alternative to the image acquisition and processing of transgenic lines expressing fluorescent spindle markers. Consequently, experiments on large sets of cells can be performed with a simple setup using inexpensive microscopes. Moreover, analysis of any mutant or wild-type backgrounds is accessible because laborious rounds of crosses with transgenic lines become unnecessary. Last, our program allows spindle detection in other nematode species, offering the same quality of DIC images but for which techniques of transgenesis are not accessible. Thus, our program also opens the way towards a quantitative evolutionary approach of spindle dynamics. Overall, our computer program is a unique macro for the image- and movie-processing platform ImageJ. It is user-friendly and freely available under an open-source licence. ACT allows batch-wise analysis of large sets of mitosis events. Within 2 minutes, a single movie is processed

  1. Integration of a network aware traffic generation device into a computer network emulation platform

    CSIR Research Space (South Africa)

    Von Solms, S

    2014-07-01

    Full Text Available aware traffic into the network emulation platform. Traffic generators are often systems that replay captured traffic packet-by-packet or generate traffic according to a specified model or preconfigured sequence. Many of these traffic generators can...

  2. Robust image watermarking scheme against geometric attacks using a computer-generated hologram.

    Science.gov (United States)

    Li, Jianzhong

    2010-11-10

    Robustness against geometric attacks is one of the most important issues in digital watermarking. A novel geometric robust watermarking scheme that uses computer-generated holograms as the watermark is presented. To maintain imperceptibility and robustness, a quantization embedding algorithm is adopted to embed the mark hologram into the low-frequency subband of the wavelet-transformed host image. In the detection process, the geometric distorted watermarked images are recovered first by the proposed improved geometric correction method, which is based on the scale invariant feature transform, the invariant centroid, and the pulse coupled neural network. Then the mark holograms are extracted from the recovered images. In comparison with the traditional geometric estimation method, the suggested improved geometric correction method can estimate the geometric distortion parameters more accurately and needs less auxiliary information. Compared with other watermark schemes using digital holograms, the proposed method has the distinct advantage of robustness to geometric attacks. The experimental results demonstrate that the proposed method has good robustness to resist geometric attacks and common attacks including rotation, scaling, translation, image flipping, combined attacks, filtering, occlusion, cropping, and JPEG compression.

  3. A population level computational model of the basal ganglia that generates parkinsonian Local Field Potential activity.

    Science.gov (United States)

    Tsirogiannis, George L; Tagaris, George A; Sakas, Damianos; Nikita, Konstantina S

    2010-02-01

    Recordings from the basal ganglia's subthalamic nucleus are acquired via microelectrodes immediately prior to the application of Deep Brain Stimulation (DBS) treatment for Parkinson's Disease (PD) to assist in the selection of the final point for the implantation of the DBS electrode. The acquired recordings reveal a persistent characteristic beta band peak in the power spectral density function of the Local Field Potential (LFP) signals. This peak is considered to lie at the core of the causality-effect relationships of the parkinsonian pathophysiology. Based on LFPs acquired from human subjects during DBS for PD, we constructed a computational model of the basal ganglia on the population level that generates LFPs to identify the critical pathophysiological alterations that lead to the expression of the beta band peak. To this end, we used experimental data reporting that the strengths of the synaptic connections are modified under dopamine depletion. The hypothesis that the altered dopaminergic modulation may affect both the amplitude and the time course of the postsynaptic potentials is validated by the model. The results suggest a pivotal role of both of these parameters to the pathophysiology of PD.

  4. Computational and experimental observations of welds in third-generation nickel-based superalloys

    Science.gov (United States)

    Naffakh-Moosavy, Homam

    2016-02-01

    The purpose of the present study is to introduce the weld quantitative solidification paths in the newly designed third-generation superalloys. The research has been conducted using both computational and experimental approaches. The model used the Scheil solidification relations to correlate the partitioning elements with their effects on the solidification paths. Accordingly, the k values were calculated for all the participating elements in the superalloy welds. The results of model demonstrated that these were very close to unity for austenite former elements, i.e. Ni, Co, Cr and Fe, while the other elements such as Ti, Nb and Mo displayed a significant tendency for segregation. The mathematical equations were calculated for weld solidification paths of superalloys. In all the welds, a remarkable segregation behaviour was observed, especially for Nb and Ti. The solidification path equations predicted type and amount of secondary phases. The solidification paths were compared with eutectic reactions ?, and ?, on the basis of the Ni-Ti-C and Ni-Nb-C ternary phase diagrams. Both the experimental measurements and microstructural observations of eutectics exhibited an appropriate accordance with the solidification paths obtained by model calculations.

  5. Digital utopias and real cities—computer-generated images in re-design of public space

    Directory of Open Access Journals (Sweden)

    Marianna Michałowska

    2015-12-01

    Full Text Available Virtual environments are seen nowadays as extensions of our physical activities in the city. Are people, however, aware what the digitally mediated cities they live in are? The starting point of my paper is a question of how computer-generated images (CGIs influence human perception of real space. I am interested in the conflict between a vision and reality, which occurs when an architectural project materialises in a public space and is subsequently rejected by the inhabitants. To explain this conflict, I will use the notion of digital utopias and compare CGIs with the great tradition of “paper” architecture. I will analyse two case studies from a medium-sized Polish city—Poznań. The first case is a redevelopment of the Main Railway Station; the second is a re-design of a local square in Poznań. The analysis focuses on the ambiguity of CGIs used to advertise new investments. The Station in the phase of digital visualisation was appreciated by the Poznań inhabitants but when the project was finally realised, strong criticism of its users followed. The second one provoked public protests already in the phase of visualisation. In conclusion, I state that the concept of agonistic public spaces should be expanded and its virtual dimension should be taken into consideration as well. When dealing with hyper-realistic CGIs, we experience a certain utopia. Confronted with their material execution, we often experience dystopian disillusion which stirs us into action.

  6. Generation of naphthoquinone radical anions by electrospray ionization: solution, gas-phase, and computational chemistry studies.

    Science.gov (United States)

    Vessecchi, Ricardo; Naal, Zeki; Lopes, José N C; Galembeck, Sérgio E; Lopes, Norberto P

    2011-06-02

    Radical anions are present in several chemical processes, and understanding the reactivity of these species may be described by their thermodynamic properties. Over the last years, the formation of radical ions in the gas phase has been an important issue concerning electrospray ionization mass spectrometry studies. In this work, we report on the generation of radical anions of quinonoid compounds (Q) by electrospray ionization mass spectrometry. The balance between radical anion formation and the deprotonated molecule is also analyzed by influence of the experimental parameters (gas-phase acidity, electron affinity, and reduction potential) and solvent system employed. The gas-phase parameters for formation of radical species and deprotonated species were achieved on the basis of computational thermochemistry. The solution effects on the formation of radical anion (Q(•-)) and dianion (Q(2-)) were evaluated on the basis of cyclic voltammetry analysis and the reduction potentials compared with calculated electron affinities. The occurrence of unexpected ions [Q+15](-) was described as being a reaction between the solvent system and the radical anion, Q(•-). The gas-phase chemistry of the electrosprayed radical anions was obtained by collisional-induced dissociation and compared to the relative energy calculations. These results are important for understanding the formation and reactivity of radical anions and to establish their correlation with the reducing properties by electrospray ionization analyses.

  7. Computel: computation of mean telomere length from whole-genome next-generation sequencing data.

    Science.gov (United States)

    Nersisyan, Lilit; Arakelyan, Arsen

    2015-01-01

    Telomeres are the ends of eukaryotic chromosomes, consisting of consecutive short repeats that protect chromosome ends from degradation. Telomeres shorten with each cell division, leading to replicative cell senescence. Deregulation of telomere length homeostasis is associated with the development of various age-related diseases and cancers. A number of experimental techniques exist for telomere length measurement; however, until recently, the absence of tools for extracting telomere lengths from high-throughput sequencing data has significantly obscured the association of telomere length with molecular processes in normal and diseased conditions. We have developed Computel, a program in R for computing mean telomere length from whole-genome next-generation sequencing data. Computel is open source, and is freely available at https://github.com/lilit-nersisyan/computel. It utilizes a short-read alignment-based approach and integrates various popular tools for sequencing data analysis. We validated it with synthetic and experimental data, and compared its performance with the previously available software. The results have shown that Computel outperforms existing software in accuracy, independence of results from sequencing conditions, stability against inherent sequencing errors, and better ability to distinguish pure telomeric sequences from interstitial telomeric repeats. By providing a highly reliable methodology for determining telomere lengths from whole-genome sequencing data, Computel should help to elucidate the role of telomeres in cellular health and disease.

  8. Computel: computation of mean telomere length from whole-genome next-generation sequencing data.

    Directory of Open Access Journals (Sweden)

    Lilit Nersisyan

    Full Text Available Telomeres are the ends of eukaryotic chromosomes, consisting of consecutive short repeats that protect chromosome ends from degradation. Telomeres shorten with each cell division, leading to replicative cell senescence. Deregulation of telomere length homeostasis is associated with the development of various age-related diseases and cancers. A number of experimental techniques exist for telomere length measurement; however, until recently, the absence of tools for extracting telomere lengths from high-throughput sequencing data has significantly obscured the association of telomere length with molecular processes in normal and diseased conditions. We have developed Computel, a program in R for computing mean telomere length from whole-genome next-generation sequencing data. Computel is open source, and is freely available at https://github.com/lilit-nersisyan/computel. It utilizes a short-read alignment-based approach and integrates various popular tools for sequencing data analysis. We validated it with synthetic and experimental data, and compared its performance with the previously available software. The results have shown that Computel outperforms existing software in accuracy, independence of results from sequencing conditions, stability against inherent sequencing errors, and better ability to distinguish pure telomeric sequences from interstitial telomeric repeats. By providing a highly reliable methodology for determining telomere lengths from whole-genome sequencing data, Computel should help to elucidate the role of telomeres in cellular health and disease.

  9. A Comparative Computational Fluid Dynamics Study on an Innovative Exhaust Air Energy Recovery Wind Turbine Generator

    Directory of Open Access Journals (Sweden)

    Seyedsaeed Tabatabaeikia

    2016-05-01

    Full Text Available Recovering energy from exhaust air systems of building cooling towers is an innovative idea. A specific wind turbine generator was designed in order to achieve this goal. This device consists of two Giromill vertical axis wind turbines (VAWT combined with four guide vanes and two diffuser plates. It was clear from previous literatures that no comprehensive flow behavior study had been carried out on this innovative device. Therefore, the working principle of this design was simulated using the Analysis System (ANSYS Fluent computational fluid dynamics (CFD package and the results were compared to experimental ones. It was perceived from the results that by introducing the diffusers and then the guide vanes, the overall power output of the wind turbine was improved by approximately 5% and 34%, respectively, compared to using VAWT alone. In the case of the diffusers, the optimum angle was found to be 7°, while for guide vanes A and B, it was 70° and 60° respectively. These results were in good agreement with experimental results obtained in the previous experimental study. Overall, it can be concluded that exhaust air recovery turbines are a promising form of green technology.

  10. Problems on design of computer-generated holograms for testing aspheric surfaces: principle and calculation

    Institute of Scientific and Technical Information of China (English)

    Zhishan Gao; Meimei Kong; Rihong Zhu; Lei Chen

    2007-01-01

    Interferometric optical testing using computer-generated hologram (CGH) has provided an approach to highly accurate measurement of aspheric surfaces. While designing the CGH null correctors, we should make them with as small aperture and low spatial frequency as possible, and with no zero slope of phase except at center, for the sake of insuring lowisk of substrate figure error and feasibility of fabrication. On the basis of classic optics, a set of equations for calculating the phase function of CGH are obtained. These equations lead us to find the dependence of the aperture and spatial frequency on the axial diszance from the tested aspheric surface for the CGH. We also simulatethe ptical path difference error of the CGH relative to the accuracy of controlling laser spot during fabrication. Meanwhile, we discuss the constraints used to avoid zero slope of phase except at center and give a design result of the CGH for the tested aspheric surface. The results ensure the feasibility of designing a useful CGH to test aspheric urface fundamentally.

  11. Temporal analysis of laser beam propagation in the atmosphere using computer-generated long phase screens.

    Science.gov (United States)

    Dios, Federico; Recolons, Jaume; Rodríguez, Alejandro; Batet, Oscar

    2008-02-04

    Temporal analysis of the irradiance at the detector plane is intended as the first step in the study of the mean fade time in a free optical communication system. In the present work this analysis has been performed for a Gaussian laser beam propagating in the atmospheric turbulence by means of computer simulation. To this end, we have adapted a previously known numerical method to the generation of long phase screens. The screens are displaced in a transverse direction as the wave is propagated, in order to simulate the wind effect. The amplitude of the temporal covariance and its power spectrum have been obtained at the optical axis, at the beam centroid and at a certain distance from these two points. Results have been worked out for weak, moderate and strong turbulence regimes and when possible they have been compared with theoretical models. These results show a significant contribution of beam wander to the temporal behaviour of the irradiance, even in the case of weak turbulence. We have also found that the spectral bandwidth of the covariance is hardly dependent on the Rytov variance.

  12. Development and experimental validation of a computational model for a helically coiled steam generator

    Energy Technology Data Exchange (ETDEWEB)

    Colorado, D.; Hernandez, J.A. [Centro de Investigacion en Ingenieria y Ciencia Aplicadas (CIICAp), Universidad Autonoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209 Cuernavaca, Morelos (Mexico); Papini, D.; Santini, L.; Ricotti, M.E. [Department of Energy, CeSNEF-Nuclear Engineering Division, Politecnico di, Milano, Via La Masa, 34, 20156, Milan (Italy)

    2011-04-15

    A computational model is developed to describe the thermo-fluid-dynamic behaviour of a helically coiled steam generator device working with water and widely adopted in the nuclear industry. The discretized governing equations are coupled using an implicit step by step method. The mathematical model includes: a subcooled liquid region, a two-phase flow region, and a superheated vapour region (according to the once-through nature of the heat exchanger). All the flow variables (enthalpies, temperatures, pressures, vapour qualities, velocities, heat fluxes, etc.), together with the thermo-physical properties, are evaluated at each point of the grid in which the domain is discretized. A full-scale experimental investigation carried out at SIET thermal-hydraulics labs in Piacenza (Italy), and aimed at characterizing the fluid-dynamic behaviour of two-phase flows in helically coiled tubes, is referenced in the present paper. Two-phase pressure drops data reduction allowed optimizing a suitable form of the friction factor multiplier required by momentum balance equation. Comparisons of the numerical simulations with a wide range of two-phase pressure drops measurements (experiments conducted both in diabatic and adiabatic conditions) are shown in order to validate the proposed model. (authors)

  13. Screening Belief: The Life of Pi, Computer Generated Imagery, and Religious Imagination

    Directory of Open Access Journals (Sweden)

    Rachel Wagner

    2016-07-01

    Full Text Available Ang Lee’s The Life of Pi is based on Yann Martel’s novel of the same name. The film expands upon the novel’s fantastic story through the integration of new visual metaphors that invite religious reflection, and is reinforced by religious rituals within and beyond the film itself. Martel’s novel invites readers to believe Pi’s story without seeing it. Viewers of the film, by contrast, are invited to believe Pi’s story precisely because they are seeing it so vividly. Ang Lee constructs a filmic world using such elaborately developed CGI (computer-generated imagery that the film exhibits only a vestigial relationship to the real-life animals and locations used in its creation. Indeed, it is impossible to make sense of the film’s extensive use of religious themes and rituals without understanding its use of immersive visual effects. For Ang Lee, the manufacture of a seamless, aesthetically appealing CGI world was a means of visually affirming the broadly conceived notions of interconnectedness and purpose that he borrowed from Christianity, Islam, Hinduism, and Jewish mysticism.

  14. Computer simulations analysis for determining the polarity of charge generated by high energy electron irradiation of a thin film

    DEFF Research Database (Denmark)

    Malac, Marek; Hettler, Simon; Hayashida, Misa

    2017-01-01

    Detailed simulations are necessary to correctly interpret the charge polarity of electron beam irradiated thin film patch. Relying on systematic simulations we provide guidelines and movies to interpret experimentally the polarity of the charged area, to be understood as the sign of the electrost...

  15. 医学层析图像的计算全息三维可视化%Three Dimensional Visualization of Computer Tomograms Based on Computer Generated Holography

    Institute of Scientific and Technical Information of China (English)

    杨上供; 甘亮勤; 熊飞兵

    2014-01-01

    提出了一种医学层析图像的计算全息三维可视化技术。首先研究了层析图像序列的三维信息融合,将层析图像序列的二维信息融合成三维信息,用计算全息图的方法进行三维信息记录。然后结合空间光调制器的结构特性,对全息系统的空间频率、参物光夹角、取样间隔以及全息再现像的再现区域和视角等进行了讨论和分析,并设置了相关参数,使计算全息系统与电子显示系统相匹配。最后用液晶空间光调制器作为全息图显示载体,用计算机控制全息图的实时输出,用雾屏承载三维空间再现像,建立三维图像光电再现与实时显示系统,实现层析图像序列的三维可视化,给出了理论分析与实验结果。%A new technology of three-dimension visualization of computer tomograms using computer generated holography is proposed. Firstly, information amalgamation of computer tomograms is studied, the three-dimension information extracted from a series of two-dimension computer tomograms is recorded by computer-generated holography, and different Computer-generated Holograms(CGHs) corresponding to different number of computer tomograms are obtained. Then, combining the structural features of Liquid Crystal Spatial Light Modulator (LC-SLM), spatial frequency, angle between object and reference beams as well as sample interval of CGHs is analyzed, and the viewing angle of reconstructed image of CGHs is discussed. On this basis, relevant parameters are properly set making the holographic system and the liquid crystal display system match well. Finally, three-dimensional reconstructed and real-time display system for computer tomograms is build, in which, real-time controlled by computer, different CGHs are output to LC-SLM in sequence, and three-dimensional reconstructed images of computer tomograms changing with the holograms are dynamically displayed on fog screen. The principle and experiment

  16. Computational analysis of the effects of reduced temperature on thrombin generation: the contributions of hypothermia to coagulopathy.

    Science.gov (United States)

    Mitrophanov, Alexander Y; Rosendaal, Frits R; Reifman, Jaques

    2013-09-01

    Hypothermia, which can result from tissue hypoperfusion, body exposure, and transfusion of cold resuscitation fluids, is a major factor contributing to coagulopathy of trauma and surgery. Despite considerable efforts, the mechanisms of hypothermia-induced blood coagulation impairment have not been fully understood. We introduce a kinetic modeling approach to investigate the effects of hypothermia on thrombin generation. We extended a validated computational model to predict and analyze the impact of low temperatures (with or without concomitant blood dilution) on thrombin generation and its quantitative parameters. The computational model reflects the existing knowledge about the mechanistic details of thrombin generation biochemistry. We performed the analysis for an "average" subject, as well as for 472 subjects in the control group of the Leiden Thrombophilia Study. We computed and analyzed thousands of kinetic curves characterizing the generation of thrombin and the formation of the thrombin-antithrombin complex (TAT). In all simulations, hypothermia in the temperature interval 31°C to 36°C progressively slowed down thrombin generation, as reflected by clotting time, thrombin peak time, and prothrombin time, which increased in all subjects (P computational strategy that can be used to simulate the effects of changing temperature on the kinetics of biochemical systems and applied this strategy to analyze the effects of hypothermia on thrombin generation. We found that thrombin generation can be noticeably impaired in subjects with different blood plasma composition even in moderate hypothermia. Our work provides mechanistic support to the notion that thrombin generation impairment may be a key factor in coagulopathy induced by hypothermia and complicated by blood plasma dilution.

  17. COMPUTING

    CERN Multimedia

    P. MacBride

    The Computing Software and Analysis Challenge CSA07 has been the main focus of the Computing Project for the past few months. Activities began over the summer with the preparation of the Monte Carlo data sets for the challenge and tests of the new production system at the Tier-0 at CERN. The pre-challenge Monte Carlo production was done in several steps: physics generation, detector simulation, digitization, conversion to RAW format and the samples were run through the High Level Trigger (HLT). The data was then merged into three "Soups": Chowder (ALPGEN), Stew (Filtered Pythia) and Gumbo (Pythia). The challenge officially started when the first Chowder events were reconstructed on the Tier-0 on October 3rd. The data operations teams were very busy during the the challenge period. The MC production teams continued with signal production and processing while the Tier-0 and Tier-1 teams worked on splitting the Soups into Primary Data Sets (PDS), reconstruction and skimming. The storage sys...

  18. Jackie Chan: Named the Greatest Action Movie Star of All Time%成龙超过李小龙成头号动作巨星

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    In a recent article in the New York Daily News, Jackie was named the greatest action movie star of all time. As most of Jackie's fans know, he was doing dangerous stunts(特技)and action sequences long before the introduction of computers into moviemaking.

  19. Idea Generation in Student Writing: Computational Assessments and Links to Successful Writing

    Science.gov (United States)

    Crossley, Scott A.; Muldner, Kasia; McNamara, Danielle S.

    2016-01-01

    Idea generation is an important component of most major theories of writing. However, few studies have linked idea generation in writing samples to assessments of writing quality or examined links between linguistic features in a text and idea generation. This study uses human ratings of idea generation, such as "idea fluency, idea…

  20. Graduate Training in Educational Computing: Training the Next Generation of Technology Leaders.

    Science.gov (United States)

    Willis, Jerry

    1991-01-01

    Discussion of graduate programs in educational computing highlights six models of educational computing programs: (1) the computer science model, which stresses programing; (2) the educational psychology model; (3) the programed instruction model; (4) the instructional design model; (5) the information center model; and (6) the audiovisual…

  1. COMPUTING

    CERN Multimedia

    M. Kasemann

    CMS relies on a well functioning, distributed computing infrastructure. The Site Availability Monitoring (SAM) and the Job Robot submission have been very instrumental for site commissioning in order to increase availability of more sites such that they are available to participate in CSA07 and are ready to be used for analysis. The commissioning process has been further developed, including "lessons learned" documentation via the CMS twiki. Recently the visualization, presentation and summarizing of SAM tests for sites has been redesigned, it is now developed by the central ARDA project of WLCG. Work to test the new gLite Workload Management System was performed; a 4 times increase in throughput with respect to LCG Resource Broker is observed. CMS has designed and launched a new-generation traffic load generator called "LoadTest" to commission and to keep exercised all data transfer routes in the CMS PhE-DEx topology. Since mid-February, a transfer volume of about 12 P...

  2. The effectiveness of computer-generated 3D animations in inquiry chemistry laboratory

    Science.gov (United States)

    Theall, Rachel Morgan

    . Movies of "real life" chemistry were also incorporated into the module to help students relate the investigation to prior knowledge.

  3. Analysis of Movie I am not Stupid 2: Parenting Style

    OpenAIRE

    Mariana

    2015-01-01

    This paper, through Singaporean movie I am not Stupid 2, analyzes the relation between parenting and childrens growth process and also the action of parents should do to offer children for having a good growth process. Research was done based on Baumrind theory about parenting analysis to what kind of parenting that the parents of the movie I am not Stupid 2 offer to their children. Research used literature study to summarize, arrange, and analyze of Diana Baumrind as basis of the research. T...

  4. Voice(-)Over(,) Sound Track and Silent Movie

    DEFF Research Database (Denmark)

    Balle, Søren Hattesen

    2010-01-01

    In his book Deliberate Speed cultural historian W.T. Lhamon puts forth the claim that ‘50s American art was characterized by a common need to compete with all the forms and expressions which the many new media of a constantly growing popular culture offered the contemporary artist, but with which...... acknowledging the intermedial link between Kerouac’s literary play and the more popular cultural home movie genre. In this paper I shall focus on how Frank and Leslie exploit the media-specific characteristics of the home movie in order to explore the authority of the Beat philosophy and its aesthetics. Here I...

  5. Synergistic Computational and Microstructural Design of Next- Generation High-Temperature Austenitic Stainless Steels

    Energy Technology Data Exchange (ETDEWEB)

    Karaman, Ibrahim [Texas A& M Engineering Experiment Station, College Station, TX (United States); Arroyave, Raymundo [Texas A& M Engineering Experiment Station, College Station, TX (United States)

    2015-07-31

    The purpose of this project was to: 1) study deformation twinning, its evolution, thermal stability, and the contribution on mechanical response of the new advanced stainless steels, especially at elevated temperatures; 2) study alumina-scale formation on the surface, as an alternative for conventional chromium oxide, that shows better oxidation resistance, through alloy design; and 3) design new generation of high temperature stainless steels that form alumina scale and have thermally stable nano-twins. The work involved few baseline alloys for investigating the twin formation under tensile loading, thermal stability of these twins, and the role of deformation twins on the mechanical response of the alloys. These baseline alloys included Hadfield Steel (Fe-13Mn-1C), 316, 316L and 316N stainless steels. Another baseline alloy was studied for alumina-scale formation investigations. Hadfield steel showed twinning but undesired second phases formed at higher temperatures. 316N stainless steel did not show signs of deformation twinning. Conventional 316 stainless steel demonstrated extensive deformation twinning at room temperature. Investigations on this alloy, both in single crystalline and polycrystalline forms, showed that deformation twins evolve in a hierarchical manner, consisting of micron–sized bundles of nano-twins. The width of nano-twins stays almost constant as the extent of strain increases, but the width and number of the bundles increase with increasing strain. A systematic thermomechanical cycling study showed that the twins were stable at temperatures as high as 900°C, after the dislocations are annealed out. Using such cycles, volume fraction of the thermally stable deformation twins were increased up to 40% in 316 stainless steel. Using computational thermodynamics and kinetics calculations, we designed two generations of advanced austenitic stainless steels. In the first generation, Alloy 1, which had been proposed as an alumina

  6. Schiller Goes to the Movies: Locating the Sublime in "Thelma and Louise."

    Science.gov (United States)

    Hoyng, Peter

    1997-01-01

    Endeavors to make students aware of similarities between today's movie culture and the theater of the 18th century; parallels between a traditional drama and a movie script; and Schiller's understanding of the sublime. (36 references) (Author/CK)

  7. Chemistry for Kids: Generating Carbon Dioxide in Elementary School Chemistry and Using a Computer To Write about It.

    Science.gov (United States)

    Schlenker, Richard M.; Yoshida, Sarah

    This material describes an activity using vinegar and baking soda to generate carbon dioxide, and writing a report using the Appleworks word processing program for grades 3 to 8 students. Time requirement, relevant process skills, vocabulary, mathematics skills, computer skills, and materials are listed. Activity procedures including class…

  8. Peter Landin: a computer scientist who inspired a generation, 5th June 1930 - 3rd June 2009

    OpenAIRE

    2009-01-01

    Peter Landin: a computer scientist who inspired a generation, 5th June 1930 - 3rd June 2009 (Bornat, Richard) School of Engineering and Information Sciences, Middlesex University - The Burroughs, NW4 4BT - London - UNITED KINGDOM (Bornat, Richard) UNITED KINGDOM Registration: 2009-07-24 ePublished: 2009-08-13

  9. A Systematic Review of Tablet Computers and Portable Media Players as Speech Generating Devices for Individuals with Autism Spectrum Disorder

    Science.gov (United States)

    Lorah, Elizabeth R.; Parnell, Ashley; Whitby, Peggy Schaefer; Hantula, Donald

    2015-01-01

    Powerful, portable, off-the-shelf handheld devices, such as tablet based computers (i.e., iPad®; Galaxy®) or portable multimedia players (i.e., iPod®), can be adapted to function as speech generating devices for individuals with autism spectrum disorders or related developmental disabilities. This paper reviews the research in this new and rapidly…

  10. Analytical and computational methodology to assess the over pressures generated by a potential catastrophic failure of a cryogenic pressure vessel

    Energy Technology Data Exchange (ETDEWEB)

    Zamora, I.; Fradera, J.; Jaskiewicz, F.; Lopez, D.; Hermosa, B.; Aleman, A.; Izquierdo, J.; Buskop, J.

    2014-07-01

    Idom has participated in the risk evaluation of Safety Important Class (SIC) structures due to over pressures generated by a catastrophic failure of a cryogenic pressure vessel at ITER plant site. The evaluation implements both analytical and computational methodologies achieving consistent and robust results. (Author)

  11. Teacher Education Students' Perceptions of the Value of Handouts Accompanying Teacher Educators' Computer-Generated Slide Presentations

    Science.gov (United States)

    Yilmazel-Sahin, Yesim; Oxford, Rebecca L.

    2010-01-01

    This mixed-methods study used interviews and a questionnaire to investigate the perceptions of 304 teacher education students regarding the learning-related value of handouts accompanying teacher educators' computer-generated slide presentations. The extent to which graduate and undergraduate students differed in their perceptions was also…

  12. Cognitive map in patients with mild Alzheimer's disease: a computer-generated arena study.

    Science.gov (United States)

    Jheng, Sheng-Siang; Pai, Ming-Chyi

    2009-06-08

    In addition to memory impairment, a tendency to get lost is among the initial symptoms in patients with Alzheimer disease (AD). At least two kinds of wayfinding strategies, egocentric and allocentric, have been proposed. It is believed that people may form a cognitive map after repeated movement in a specific environment, and are able to use it as an aid to navigation. In the present study, we investigated the cognitive maps in early AD patients and their application in a computer-generated arena (CGA). We invited very mild AD (CDR 0.5) patients and normal controls (NCs) to participate in the current study. Hand-drawing tests were used to assess their supposedly previously formed cognitive maps of familiar environments, and CGA was used to measure their new environment learning as well as the application of the old map. Nineteen patients (8 females, mean age 67.6 years old, education 9.7 years, and MMSE 24) and 18 NCs (10 females, mean age 66.4 years old, education 8.8 years, and MMSE 27) completed the study. In the hand-drawing map part, both groups did equally well. In the new environment learning, NCs did better than the AD group on the third of six trials. As for the old environment navigation experiment, the AD group spent more time than the NCs in finding the target, but showed no difference to NC regarding the path traveled in the target quadrant. Early AD patients maintain their ability to use a cognitive map and keep pretty good allocentric representation of their familiar environments as well as NC do, but probably both groups do not routinely use their cognitive map to navigate in everyday life properly.

  13. 计算全息的设计制作与应用%Computer Generated Hologram's Making Technology and Application

    Institute of Scientific and Technical Information of China (English)

    杨皋

    2001-01-01

    计算全息是建立在计算机科学与光学结合的全息图制作的一种新技术。要比一般光学全息具有更独特的优点。介绍计算全息的设计制作,对开拓其应用范围有重要的参考价值。%Computer generated hologram is a New technology of generatedhologram's making .It is established in the computer science combined with options.Which has more special advantages than other ordinary genertaed holograms.An introduction is given to the computer generated hologram's making technology.It will help deepen the under standing of this technology and broaden its application.

  14. A method for creating teaching movie clips using screen recording software: usefulness of teaching movies as self-learning tools for medical students

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Seong Su [The Catholic University of Korea, Suwon (Korea, Republic of)

    2007-04-15

    I wanted to describe a method to create teaching movies with using screen recordings, and I wanted to see if self-learning movies are useful for medical students. Teaching movies were created by direct recording of the screen activity and voice narration during the interpretation of educational cases; we used a PACS system and screen recording software for the recording (CamStudio, Rendersoft, U.S.A.). The usefulness of teaching movies for seft-learning of abdominal CT anatomy was evacuated by the medical students. Creating teaching movie clips with using screen recording software was simple and easy. Survey responses were collected from 43 medical students. The contents of teaching movie was adequately understandable (52%) and useful for learning (47%). Only 23% students agreed the these movies helped motivated them to learn. Teaching movies were more useful than still photographs of the teaching image files. The students wanted teaching movies on the cross-sectional CT anatomy of different body regions (82%) and for understanding the radiological interpretation of various diseases (42%). Creating teaching movie by direct screen recording of a radiologist's interpretation process is easy and simple. The teaching video clips reveal a radiologist's interpretation process or the explanation of teaching cases with his/her own voice narration, and it is an effective self-learning tool for medical students and residents.

  15. A benchmarking campaign for the multimodal detection of violent scenes in movies

    OpenAIRE

    Demarty, Claire-Hélène; Penet, Cédric; Gravier, Guillaume; Soleymani, Mohammad

    2012-01-01

    International audience; We present an international benchmark on the detection of violent scenes in movies, implemented as a part of the multimedia benchmarking initiative MediaEval 2011. The task consists in detecting portions of movies where physical violence is present from the automatic analysis of the video, sound and subtitle tracks. A dataset of 15 Hollywood movies was carefully annotated and divided into a development set and a test set containing 3 movies. Annotation strategies and r...

  16. A Multimodal Discourse Analysis of the First Movie Poster of Titanic (3D)

    Institute of Scientific and Technical Information of China (English)

    鞠彤

    2013-01-01

    Movie posters are designed to publicize the movies and boost the bill-office receipts. To read a movie poster is to decode a multimodal discourse which contains a variety of semiotic factors such as image, word, and color. The first movie poster of Titanic (3D) aims to find out how images as social semi-otic work together with words and to improve readers’multiliteracy.

  17. "I Caught It at the Movies": Reflections on Medical History, Movie Theaters, and the Cinema of Contagion.

    Science.gov (United States)

    Wahlert, Lance

    2016-01-01

    Undertaking an examination of the precarious places of the movies and movie theaters in queer lives in the 20th century, this article takes up a series of anecdotal episodes and feature-length films to consider how the space-related stakes of LGBT health have been best understood in literal cinema houses and the narrative cinema projections inside of them. The author argues for an appreciation of LGBT-themed motion pictures as oscillating between perpetuator of queer pathology and its potential solution.

  18. High-Quality Random Number Generation Software for High-Performance Computing Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Random number (RN) generation is the key software component that permits random sampling. Software for parallel RN generation (RNG) should be based on RNGs that are...

  19. High youth access to movies that contain smoking in Europe compared with the USA

    NARCIS (Netherlands)

    Hanewinkel, R.; Sargent, J.D.; Karlsdottir, S.; Jonsson, S.H.; Mathis, F.; Faggiano, F.; Poelen, E.A.P.; Scholte, R.H.J.; Florek, E.; Sweeting, H.; Hunt, K.; Morgenstern, M.

    2013-01-01

    Background Based on evidence that exposure to smoking in movies is associated with adolescent smoking, the WHO has called on countries to assign a rating that restricts youth access to such movies. Objective To evaluate youth access to movies that portray smoking in European countries and compare w

  20. War Games: "Ender's Game", "The Monuments Men", and Movies for Peace

    Science.gov (United States)

    Beck, Bernard

    2015-01-01

    The popularity of adolescent fantasy movies about cosmic war and the enjoyment of military adventures that we find in World War II movies suggest the unique importance of war-themed culture in fostering solidarity in large, complex, and factionalized societies. War movies offset the power of sub-cultural movements by emphasizing the togetherness…

  1. War Games: "Ender's Game", "The Monuments Men", and Movies for Peace

    Science.gov (United States)

    Beck, Bernard

    2015-01-01

    The popularity of adolescent fantasy movies about cosmic war and the enjoyment of military adventures that we find in World War II movies suggest the unique importance of war-themed culture in fostering solidarity in large, complex, and factionalized societies. War movies offset the power of sub-cultural movements by emphasizing the togetherness…

  2. Parents rate the ratings: a test of the validity of the American movie, television, and video game ratings.

    Science.gov (United States)

    Walsh, D A; Gentile, D A; Van Brederode, T M

    2002-02-01

    Numerous studies have documented the potential effects on young audiences of violent content in media products, including movies, television programs, and computer and video games. Similar studies have evaluated the effects associated with sexual content and messages. Cumulatively, these effects represent a significant public health risk for increased aggressive and violent behavior, spread of sexually transmitted diseases, and pediatric pregnancy. In partial response to these risks and to public and legislative pressure, the movie, television, and gaming industries have implemented ratings systems intended to provide information about the content and appropriate audiences for different films, shows, and games. We conducted a panel study to test the validity of the current movie, television, and video game rating systems. Participants used the KidScore media evaluation tool, which evaluates films, television shows, and video and computer games on 10 aspects, including the appropriateness of the media product for children on the basis of age. Results revealed that when an entertainment industry rates a product as inappropriate for children, parent raters agree that it is inappropriate for children. However, parent raters disagree with industry usage of many of the ratings designating material suitable for children of different ages. Products rated as appropriate for adolescents are of the greatest concern. The level of disagreement varies from industry to industry and even from rating to rating. Analysis indicates that the amount of violent content and portrayals of violence are the primary markers for disagreement between parent raters and industry ratings. Short-term and long-term recommendations are suggested.

  3. Getting the story right: making computer-generated stories more entertaining

    NARCIS (Netherlands)

    Oinonen, K.M.; Theune, M.; Nijholt, A.; Heylen, D.K.J.

    2005-01-01

    In this paper we describe our efforts to increase the entertainment value of the stories generated by our story generation system, the Virtual Storyteller, at the levels of plot creation, discourse generation and spoken language presentation. We also discuss the construction of a story database that

  4. The Comparability of the Statistical Characteristics of Test Items Generated by Computer Algorithms.

    Science.gov (United States)

    Meisner, Richard; And Others

    This paper presents a study on the generation of mathematics test items using algorithmic methods. The history of this approach is briefly reviewed and is followed by a survey of the research to date on the statistical parallelism of algorithmically generated mathematics items. Results are presented for 8 parallel test forms generated using 16…

  5. A Novel Fixed Low-Rank Constrained EEG Spatial Filter Estimation with Application to Movie-Induced Emotion Recognition

    Science.gov (United States)

    Suyama, Takayuki

    2016-01-01

    This paper proposes a novel fixed low-rank spatial filter estimation for brain computer interface (BCI) systems with an application that recognizes emotions elicited by movies. The proposed approach unifies such tasks as feature extraction, feature selection, and classification, which are often independently tackled in a “bottom-up” manner, under a regularized loss minimization problem. The loss function is explicitly derived from the conventional BCI approach and solves its minimization by optimization with a nonconvex fixed low-rank constraint. For evaluation, an experiment was conducted to induce emotions by movies for dozens of young adult subjects and estimated the emotional states using the proposed method. The advantage of the proposed method is that it combines feature selection, feature extraction, and classification into a monolithic optimization problem with a fixed low-rank regularization, which implicitly estimates optimal spatial filters. The proposed method shows competitive performance against the best CSP-based alternatives. PMID:27597862

  6. A Novel Fixed Low-Rank Constrained EEG Spatial Filter Estimation with Application to Movie-Induced Emotion Recognition

    Directory of Open Access Journals (Sweden)

    Ken Yano

    2016-01-01

    Full Text Available This paper proposes a novel fixed low-rank spatial filter estimation for brain computer interface (BCI systems with an application that recognizes emotions elicited by movies. The proposed approach unifies such tasks as feature extraction, feature selection, and classification, which are often independently tackled in a “bottom-up” manner, under a regularized loss minimization problem. The loss function is explicitly derived from the conventional BCI approach and solves its minimization by optimization with a nonconvex fixed low-rank constraint. For evaluation, an experiment was conducted to induce emotions by movies for dozens of young adult subjects and estimated the emotional states using the proposed method. The advantage of the proposed method is that it combines feature selection, feature extraction, and classification into a monolithic optimization problem with a fixed low-rank regularization, which implicitly estimates optimal spatial filters. The proposed method shows competitive performance against the best CSP-based alternatives.

  7. Are 3-D Movies Bad for Your Eyes?

    Medline Plus

    Full Text Available ... Tips & Prevention News Ask an Ophthalmologist Patient Stories Español Eye Health / Tips & Prevention Sections Are 3-D Movies Bad for Your Eyes? Leer en Español: ¿Son Malas para los Ojos las Películas en ...

  8. Lights, Camera, Reflection! Digital Movies: A Tool for Reflective Learning

    Science.gov (United States)

    Genereux, Annie Prud'homme; Thompson, William A.

    2008-01-01

    At the end of a biology course entitled Ecology, Evolution, and Genetics, students were asked to consider how their learning experience had changed their perception of either ecology or genetics. Students were asked to express their thoughts in the form of a "digital story" using readily available software to create movies for the purpose of…

  9. Movie Portrayals of Juvenile Delinquency: Part 1-Epidemiology and Criminology.

    Science.gov (United States)

    Snyder, Scott

    1995-01-01

    Reviews aspects of the epidemiology and criminology of delinquency and how they have been reflected in American films. Analyses show that when movies mimic certain aspects of the viewer's environment, an interactive or "resonating" effect may occur, such that young viewers may be more likely to commit delinquent acts. (RJM)

  10. Shelving, Stamping and Shushing: Librarians in the Movies.

    Science.gov (United States)

    Yeagley, Beth

    For many years, librarians have been bothered by negative portrayals of librarians in the media. Unattractive, non-professional old maids have been the dominant images of librarians in the movies. In 1989, the American Library Association issued a campaign designed to promote a more accurate, positive image of the librarian in an attempt to change…

  11. Movie Recommendation using Random Walks over the Contextual Graph

    DEFF Research Database (Denmark)

    Bogers, Toine

    algorithm that makes it easy to include different types of contextual information. It models the browsing process of a user on a movie database website by taking random walks over the contextual graph. We present our approach in this paper and highlight a number of future extensions with additional...

  12. Using Popular Movies in Teaching Cross-Cultural Management

    Science.gov (United States)

    Pandey, Satish

    2012-01-01

    Purpose: The present study aims to understand context and dynamics of cognitive learning of students as an outcome of the usage of popular movies as a learning tool in the management classroom and specifically in the context of a course on cross-cultural management issues. Design/methodology/approach: This is an exploratory study based on…

  13. Training the Mind's Eye: "Brain Movies" Support Comprehension and Recall

    Science.gov (United States)

    Wilson, Donna

    2012-01-01

    Explicit instruction on the skill of creating mental imagery from text supports reading comprehension and recall. This article shares a strategy for teaching students how to process what they read by comparing mental imagery to "brain movies." It emphasizes choosing appropriate fiction and nonfiction texts to encourage readers to build the skill…

  14. Reviewing Organizational Communication Concepts with the Movie "Office Space"

    Science.gov (United States)

    Bunz, Ulla

    2006-01-01

    Undergraduate students often memorize a keyword or definition for an exam without a deeper understanding or the ability to apply the meaning of the concept. While using examples during a lecture may help, the combination of movies and verbal review has been shown to be a valuable instructional tool, increasing recall (Elischberger & Roebers, 2001)…

  15. Capital Investment and Market Segmentation: Making Movies for Mormon Audiences

    Science.gov (United States)

    Wright, Newell D.; Larsen, Val

    2014-01-01

    Is there a commercially viable market in the United States for movies made for Mormons? David "Dutch" Richards, a graduate of Brigham Young University's School of Film, thinks there is. He believes that in the Western United States, especially in Utah and the Intermountain West, there are enough Mormons who would pay to watch a film by,…

  16. Capital Investment and Market Segmentation: Making Movies for Mormon Audiences

    Science.gov (United States)

    Wright, Newell D.; Larsen, Val

    2014-01-01

    Is there a commercially viable market in the United States for movies made for Mormons? David "Dutch" Richards, a graduate of Brigham Young University's School of Film, thinks there is. He believes that in the Western United States, especially in Utah and the Intermountain West, there are enough Mormons who would pay to watch a film by,…

  17. Are 3-D Movies Bad for Your Eyes?

    Science.gov (United States)

    ... Plastic Surgery Center Laser Surgery Education Center Redmond Ethics Center Global Ophthalmology Guide Eye Health ... Jul. 09, 2013 With the popularity of 3-D movies, it's natural to wonder what, if any, effect the technology has on your eyes. Is 3-D technology ...

  18. Movie for the Assessment of Social Cognition (MASC): Spanish Validation

    Science.gov (United States)

    Lahera, G.; Boada, L.; Pousa, E.; Mirapeix, I.; Morón-Nozaleda, G.; Marinas, L.; Gisbert, L.; Pamiàs, M.; Parellada, M.

    2014-01-01

    We present the Spanish validation of the "Movie for the Assessment of Social Cognition" instrument (MASC-SP). We recruited 22 adolescents and young adults with Asperger syndrome and 26 participants with typical development. The MASC-SP and three other social cognition instruments (Ekman Pictures of Facial Affect test, Reading the Mind in…

  19. Capital Investment and Market Segmentation: Making Movies for Mormon Audiences

    Science.gov (United States)

    Wright, Newell D.; Larsen, Val

    2014-01-01

    Is there a commercially viable market in the United States for movies made for Mormons? David "Dutch" Richards, a graduate of Brigham Young University's School of Film, thinks there is. He believes that in the Western United States, especially in Utah and the Intermountain West, there are enough Mormons who would pay to watch a film…

  20. Movie for the Assessment of Social Cognition (MASC): Spanish Validation

    Science.gov (United States)

    Lahera, G.; Boada, L.; Pousa, E.; Mirapeix, I.; Morón-Nozaleda, G.; Marinas, L.; Gisbert, L.; Pamiàs, M.; Parellada, M.

    2014-01-01

    We present the Spanish validation of the "Movie for the Assessment of Social Cognition" instrument (MASC-SP). We recruited 22 adolescents and young adults with Asperger syndrome and 26 participants with typical development. The MASC-SP and three other social cognition instruments (Ekman Pictures of Facial Affect test, Reading the Mind in…