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DVS (other)
DVS may refer to: Organizations and companies * Delta Valley and Southern Railway (DVS), Wilson, Arkansas, United States; a short-line railroad * Descriptive Video Service, a United States producer of video for the visually impaired * Deutsche Verkehrsfliegerschule, an organization that trained pilots for the Nazi Luftwaffe * Digital Video Systems, a German digital cinema company * DVS Records, a Dutch record label * DVS Shoes * D.V.S. Senior Honor Society, an honor society at Emory University, Atlanta, USA Technology and science * Digital vinyl system, technology and software for DJs to emulate records through digital music * Divinyl sulfide, an organic compound * Distributed vibration sensing, a viber optical sensing * Dynamic vapor sorption, a physical chemistry method that measures how a sample absorbs a solvent * Dynamic vision sensor, a neuromorphic digital camera, which responds to local changes in brightness * Dynamic voltage scaling, a power management technique in co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Valley And Southern Railway
The Delta Valley and Southern Railway is a short-line railroad headquartered in Wilson, Arkansas. DVS operates a two-mile line in Arkansas near Wilson with one switch engine. History Originally constructed in the 1850's as a Narrow-gauge railway, narrow gauge line to haul timber, this St. Louis-San Francisco Railway branch line ran from Evadale Junction (south of Wilson, Arkansas) in Mississippi County, Arkansas, Mississippi County to Deckerville (south of Tyronza, Arkansas) in Poinsett County, Arkansas, Poinsett County. The line was converted to standard gauge in 1898. By 1920, the Frisco was running multiple trains over the line from Deckerville to Osceola, Arkansas. The line was abandoned by the Frisco Railway in June of 1934. It was soon after incorporated as the Delta Valley and Southern Railway in August 1934 by C.L. Deaton, C.W. Ferguson, L.P. Nicholson, and J.D. Newell. By 1950, it was being advertised as a freight railroad with daily freight services from Wilson. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Descriptive Video Service
Audio description (AD), also referred to as a video description, described video, or visual description, is a form of narration used to provide information surrounding key visual elements in a media work (such as a film or television program, or theatrical performance) for the benefit of blind and visually impaired consumers. These narrations are typically placed during natural pauses in the audio, and sometimes overlap dialogue if deemed necessary. Occasionally when a film briefly has subtitled dialogue in a different language, such as Greedo's confrontation with Han Solo in the 1977 film '' Star Wars: A New Hope'', the narrator will read out the dialogue in character. In museums or visual art exhibitions, audio described tours (or universally designed tours that include description or the augmentation of existing recorded programs on audio- or videotape), are used to provide access to visitors who are blind or have low vision. Docents or tour guides can be trained to employ a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutsche Verkehrsfliegerschule
The Deutsche Verkehrsfliegerschule (DVS), German Air Transport School, was a covert military-training organization operating as a flying school in Germany. It began during the Weimar Republic in Staaken, Berlin in 1925 and its head office was transferred in 1929 to Broitzem airfield near Braunschweig. The DVS was outwardly a flying school for commercial pilots, but in fact became a secret military arm training military aviators for the future Luftwaffe. This training facility grew in importance in the initial stages of Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ..., while camouflaging as a harmless civilian organization (''Tarnorganisation''), at the time of Germany's rearmament in violation of the Versailles Treaty. On May 31, 1945, after Nazi Germany's de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Video Systems
Rohde & Schwarz GmbH & Co. KG ( , ) is a German multinational electronics group specializing in the fields of electronic test equipment, broadcast & media, cybersecurity, radiomonitoring and radiolocation, and radiocommunication. The company also provides products for wireless communications, the electronics industry, aerospace and defense, homeland security and critical infrastructures. In addition to the Munich headquarters, there are regional headquarters in the United States (Columbia, Maryland) and in Asia (Singapore). Worldwide the company has a total of about 14,400 employees in over 70 countries. History PTE and World War 2 The company was founded by Lothar Rohde and Hermann Schwarz who met while studying physics in Jena. They built their first T&M instrument in 1932, and in August 1933, the ''Physikalisch-Technisches Entwicklungslabor Dr. Rohde & Dr. Schwarz'' (known as ''PTE'') started in business. Ceramic insulation for frequencies above 1 MHz were improved in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DVS Records
DVS Records is a Dutch independent record label, specializing in progressive metal and related music. It was founded in 2000 by Rene Janssen, a Dutch enthusiast of progressive rock and metal A metal () is a material that, when polished or fractured, shows a lustrous appearance, and conducts electrical resistivity and conductivity, electricity and thermal conductivity, heat relatively well. These properties are all associated wit ..., and also one of the organizers of the ProgPower festival. External links Official site Dutch independent record labels Record labels established in 2000 Progressive rock record labels {{Netherlands-record-label-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DVS Shoes
DVS Shoes is an American footwear and clothing company that specialises in products for skateboarding, moto, bmx, mtb and snowboarding. The company defines itself as "... driven from the pursuit of building product that embodies the sports the company athletes breathe every day. With roots deeply embedded in skate, the company has the platform to develop truly technological products that bring the riders personalities to life." History DVS was founded in 1995 by Kevin Dunlap, his father Winston and soon joined by brothers Brian, Mike and Tim Gavin —The distribution company called Podium Distribution was formed once the Lakai Limited Footwear and Matix clothing brand were created. 2012 onwards From October 2012, DVS continued to expand its skateboarding team, signing amateur skater Zack Wallin, and embarked on a tour of Detroit, US. A photograph captured during the Detroit tour appeared as the cover for ''The Skateboard Mag'' in early 2013—the photograph features Song execu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Vinyl System
A close-up of a time-coded vinyl record Vinyl emulation allows a DJ to physically manipulate the playback of digital audio files on a computer using turntables as an interface, thus preserving the hands-on control and feel of DJing with vinyl. This has the added advantage of using turntables to play back audio recordings not available in phonograph form. This method allows DJs to scratch, beatmatch, and perform other turntablism that would be impossible with a conventional keyboard-and-mouse computer interface or less tactile DJ controllers. A ''digital vinyl system'' (DVS) may include a special time-coded vinyl record or be purely software. Characteristics Vinyl emulation normally uses special vinyl records which are played on conventional turntables. The vinyl is a recording of analog audio signals often referred to as timecode. The turntables' audio output - the timecode recording - is routed into an analog-to-digital converter, or ADC. This ADC may be a multi-channe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Divinyl Sulfide
Divinyl sulfide is the organosulfur compound with the formula S(CH=CH2)2. A colorless liquid with a faint odor, it is found in some species of ''Allium''. Preparation Divinyl sulfide is formed from hydrogen sulfide and acetylene. Divinylsulfide can arise when inadvertently when acetylene is generated by hydrolysis of technical-grade calcium carbide contaminated with calcium sulfide. Divinylsulfide was first prepared in 1920 by the reaction of bis(2-chloroethyl)sulfide with sodium ethoxide: :(ClCH2CH2)2S + 2 NaOEt → (CH2=CH)2S + 2 EtOH + 2 NaCl Monovinyl sulfides With the formula CH2=CHSR, a variety of monovinyl sulfides are known. They can arise by the dehydrohalogenation of -2-haloethyl phenyl sulfides. One example is phenyl vinyl sulfide. Alkyl ketones react with thiols in the presence of phosphorus pentoxide Phosphorus pentoxide is a chemical compound with molecular formula Phosphorus, P4Oxygen, O10 (with its common name derived from its empirical formula, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distributed Vibration Sensing
Rayleigh scattering-based distributed acoustic sensing (DAS) systems use fiber optic cables to provide distributed strain sensing. In DAS, the optical fiber cable becomes the sensing element and measurements are made, and in part processed, using an attached optoelectronic device. Such a system allows acoustic frequency strain signals to be detected over large distances and in harsh environments. Fundamentals of Rayleigh scatter-based fiber optic sensing In Rayleigh scatter-based distributed fiber optic sensing, a coherent laser pulse is sent along an optic fiber, and scattering sites within the fiber cause the fiber to act as a distributed interferometer with a gauge length approximately equal to the pulse length. The intensity of the reflected light is measured as a function of time after transmission of the laser pulse. This is known as Coherent Rayleigh Optical Time Domain Reflectometry (COTDR). When the pulse has had time to travel the full length of the fiber and back, the ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Vapor Sorption
Dynamic vapor sorption (DVS) is a gravimetric technique that measures how quickly and how much of a solvent is absorbed by a sample such as a dry powder absorbing water. It does this by varying the vapor concentration surrounding the sample and measuring the change in mass which this produces. The technique is mostly used for water vapor, but is suitable for a wide range of organic solvents. Daryl Williams, founder of Surface Measurement Systems Ltd, developed Dynamic Vapor Sorption in 1991; the first instrument was delivered to Pfizer UK in 1992. DVS was originally developed to replace the time and labor-intensive desiccators and saturated salt solutions used to measure water vapor sorption isotherms. Water sorption isotherms The main application of DVS is to measure water sorption isotherms. In general, a vapor sorption isotherm shows the equilibrium amount of vapor sorbed as a function of steady state relative vapor pressure at a constant temperature. For water sorption isoth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Vision Sensor
An event camera, also known as a neuromorphic camera, silicon retina, or dynamic vision sensor, is an imaging sensor that responds to local changes in brightness. Event cameras do not capture images using a shutter as conventional (frame) cameras do. Instead, each pixel inside an event camera operates independently and asynchronously, reporting changes in brightness as they occur, and staying silent otherwise. Functional description Event camera pixels independently respond to changes in brightness as they occur. Each pixel stores a reference brightness level, and continuously compares it to the current brightness level. If the difference in brightness exceeds a threshold, that pixel resets its reference level and generates an event: a discrete packet that contains the pixel address and timestamp. Events may also contain the polarity (increase or decrease) of a brightness change, or an instantaneous measurement of the illumination level, depending on the specific sensor model ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Voltage Scaling
In computer architecture, dynamic voltage scaling is a power management technique in which the voltage used in a component is increased or decreased, depending upon circumstances. Dynamic voltage scaling to increase voltage is known as overvolting; dynamic voltage scaling to decrease voltage is known as undervolting. Undervolting is done in order to conserve power, particularly in laptops and other mobile devices, where energy comes from a battery and thus is limited, or in rare cases, to increase reliability. Overvolting is done in order to support higher frequencies for performance. The term "overvolting" is also used to refer to increasing static operating voltage of computer components to allow operation at higher speed (overclocking). Background MOSFET-based digital circuits operate using voltages at circuit nodes to represent logical state. The voltage at these nodes switches between a high voltage and a low voltage during normal operation—when the inputs to a lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
