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134,672 result(s) for "Video Equipment"
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Racing the Beam
The Atari Video Computer System dominated the home video game market so completely that \"Atari\" became the generic term for a video game console. The Atari VCS was affordable and offered the flexibility of changeable cartridges. Nearly a thousand of these were created, the most significant of which established new techniques, mechanics, and even entire genres. This book offers a detailed and accessible study of this influential video game console from both computational and cultural perspectives. Studies of digital media have rarely investigated platforms--the systems underlying computing. This book (the first in a series of Platform Studies) does so, developing a critical approach that examines the relationship between platforms and creative expression. Nick Montfort and Ian Bogost discuss the Atari VCS itself and examine in detail six game cartridges: Combat, Adventure, Pac-Man, Yars' Revenge, Pitfall!, and Star Wars: The Empire Strikes Back. They describe the technical constraints and affordances of the system and track developments in programming, gameplay, interface, and aesthetics. Adventure, for example, was the first game to represent a virtual space larger than the screen (anticipating the boundless virtual spaces of such later games as World of Warcraft and Grand Theft Auto), by allowing the player to walk off one side into another space; and Star Wars: The Empire Strikes Back was an early instance of interaction between media properties and video games. Montfort and Bogost show that the Atari VCS--often considered merely a retro fetish object--is an essential part of the history of video games.
Hydrogen Storage Performance of Mg/MgHsub.2 and Its Improvement Measures: Research Progress and Trends
Due to its high hydrogen storage efficiency and safety, Mg/MgH[sub.2] stands out from many solid hydrogen storage materials and is considered as one of the most promising solid hydrogen storage materials. However, thermodynamic/kinetic deficiencies of the performance of Mg/MgH[sub.2] limit its practical applications for which a series of improvements have been carried out by scholars. This paper summarizes, analyzes and organizes the current research status of the hydrogen storage performance of Mg/MgH[sub.2] and its improvement measures, discusses in detail the hot studies on improving the hydrogen storage performance of Mg/MgH[sub.2] (improvement measures, such as alloying treatment, nano-treatment and catalyst doping), and focuses on the discussion and in-depth analysis of the catalytic effects and mechanisms of various metal-based catalysts on the kinetic and cyclic performance of Mg/MgH[sub.2]. Finally, the challenges and opportunities faced by Mg/MgH[sub.2] are discussed, and strategies to improve its hydrogen storage performance are proposed to provide ideas and help for the next research in Mg/MgH[sub.2] and the whole field of hydrogen storage.
DeepLabCut: markerless pose estimation of user-defined body parts with deep learning
Quantifying behavior is crucial for many applications in neuroscience. Videography provides easy methods for the observation and recording of animal behavior in diverse settings, yet extracting particular aspects of a behavior for further analysis can be highly time consuming. In motor control studies, humans or other animals are often marked with reflective markers to assist with computer-based tracking, but markers are intrusive, and the number and location of the markers must be determined a priori. Here we present an efficient method for markerless pose estimation based on transfer learning with deep neural networks that achieves excellent results with minimal training data. We demonstrate the versatility of this framework by tracking various body parts in multiple species across a broad collection of behaviors. Remarkably, even when only a small number of frames are labeled (~200), the algorithm achieves excellent tracking performance on test frames that is comparable to human accuracy.
Macro-PK Experiments: Level of Control - Repeatability - Distance Effect - Confinement Effect
In order to better qualify these effects, this paper presents ongoing research that was conducted since 2021 in different directions: the ability or not for the putative PK-agent to control the movement, the level of repeatability of the experiments, the impact of the distance of the PK-agent from the target, and the impact of the confinement of the target. [...]the following points can be mentioned: * The methodology used with PK-agent experimenting from home gives the capability of multiple experiments. Since November 2022, we are on the basis of one report a week (outside the vacation period). [...]the PK-agent doesn't do other experiments outside the one reported that avoids the file drawer effect. * The repeatability obtained with detailed documentation (videos, report) seems to be in contradiction with the elusiveness principle often attached to these phenomena. * Although some precedent experiments done in our lab seems to present a decline effect with the distance, confirming the attenuation effect proposed by G. W. Roll, these new experiments with this PK-agent didn't show an impact of the distance on the rotational speed of the target.
Risk Shocks
We augment a standard monetary dynamic general equilibrium model to include a Bernanke-Gertler-Gilchrist financial accelerator mechanism. We fit the model to US data, allowing the volatility of cross-sectional idiosyncratic uncertainty to fluctuate over time. We refer to this measure of volatility as risk. We find that fluctuations in risk are the most important shock driving the business cycle.
Automatic Detection and Monitoring of Insect Pests—A Review
Many species of insect pests can be detected and monitored automatically. Several systems have been designed in order to improve integrated pest management (IPM) in the context of precision agriculture. Automatic detection traps have been developed for many important pests. These techniques and new technologies are very promising for the early detection and monitoring of aggressive and quarantine pests. The aim of the present paper is to review the techniques and scientific state of the art of the use of sensors for automatic detection and monitoring of insect pests. The paper focuses on the methods for identification of pests based in infrared sensors, audio sensors and image-based classification, presenting the different systems available, examples of applications and recent developments, including machine learning and Internet of Things. Future trends of automatic traps and decision support systems are also discussed.