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V12 Engines
V1, V01 or V-1 can refer to version one (for anything) (e.g., see version control) V1, V01 or V-1 may also refer to: In aircraft * V-1 flying bomb, a World War II German weapon * V1 speed, the maximum speed at which an aircraft pilot may abort a takeoff without causing a runway overrun * Vultee V-1, an American single-engine airliner of the 1930s * Fokker V.1, a German parasol monoplane experimental fighter prototype, built in 1916 * The first prototype/experimental ''(Versuchs)'' airframe of nearly any German WW II-era military aircraft Vessels * V1-class destroyer, a German World War I destroyer class * USS V-1, 1924–1931 designation of the USS ''Barracuda'' (SS-163), first of the US "V-boat" series of submarines * V1, a rudderless single-paddler outrigger canoe In medicine * V1, the primary visual cortex * V1, the ophthalmic nerve, first division of the trigeminal nerve * V1, one of six precordial leads in electrocardiography In astronomy * V1, or ''Hubble variable n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Version Control
In software engineering, version control (also known as revision control, source control, or source code management) is a class of systems responsible for managing changes to computer programs, documents, large web sites, or other collections of information. Version control is a component of software configuration management. Changes are usually identified by a number or letter code, termed the "revision number", "revision level", or simply "revision". For example, an initial set of files is "revision 1". When the first change is made, the resulting set is "revision 2", and so on. Each revision is associated with a timestamp and the person making the change. Revisions can be compared, restored, and, with some types of files, merged. The need for a logical way to organize and control revisions has existed for almost as long as writing has existed, but revision control became much more important, and complicated, when the era of computing began. The numbering of book editions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andromeda Galaxy
The Andromeda Galaxy (IPA: ), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy with the diameter of about approximately from Earth and the nearest large galaxy to the Milky Way. The galaxy's name stems from the area of Earth's sky in which it appears, the constellation of Andromeda, which itself is named after the princess who was the wife of Perseus in Greek mythology. The virial mass of the Andromeda Galaxy is of the same order of magnitude as that of the Milky Way, at . The mass of either galaxy is difficult to estimate with any accuracy, but it was long thought that the Andromeda Galaxy is more massive than the Milky Way by a margin of some 25% to 50%. This has been called into question by a 2018 study that cited a lower estimate on the mass of the Andromeda Galaxy, combined with preliminary reports on a 2019 study estimating a higher mass of the Milky Way. The Andromeda Galaxy has a diameter of about , making it the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Z1 (computer)
The Z1 was a motor-driven mechanical computer designed by Konrad Zuse from 1936 to 1937, which he built in his parents' home from 1936 to 1938. It was a binary electrically driven mechanical calculator with limited programmability, reading instructions from punched celluloid film. The “Z1” was the first freely programmable computer in the world which used Boolean logic and binary floating-point numbers, however it was unreliable in operation. It was completed in 1938 and financed completely from private funds. This computer was destroyed in the bombardment of Berlin in December 1943, during World War II, together with all construction plans. The Z1 was the first in a series of computers that Zuse designed. Its original name was "V1" for VersuchsModell 1 (meaning Experimental Model 1). After WW2, it was renamed "Z1" to differentiate from the flying bombs designed by Robert Lusser. The Z2 and Z3 were follow-ups based on many of the same ideas as the Z1. Design The Z1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Query Language
Query languages, data query languages or database query languages (DQL) are computer languages used to make queries in databases and information systems. A well known example is the Structured Query Language (SQL). Types Broadly, query languages can be classified according to whether they are database query languages or information retrieval query languages. The difference is that a database query language attempts to give factual answers to factual questions, while an information retrieval query language attempts to find documents containing information that is relevant to an area of inquiry. Other types of query languages include: * Full-text. The simplest query language is treating all terms as bag of words that are to be matched with the postings in the inverted index and where subsequently ranking models are applied to retrieve the most relevant documents. Only tokens are defined in the CFG. Web search engines often use this approach. * Boolean. A query language that also s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of ITU-T V-Series Recommendations
The ITU-T V-Series Recommendations on Data communication over the telephone network specify the protocols that govern approved modem communication standards and interfaces. ''Note:'' the '' bis'' and ''ter'' suffixes are ITU-T standard designators of successive iterations of a standard (''bis'' and ''ter'' are derived from the Latin for "twice" and "thrice"). General standards ''Applies to V.1–V.9'' *V.1 is an ITU-T recommendation, entitled ''Equivalence between binary notation symbols and the significant conditions of a two-condition code.'' *V.2 is an ITU-T recommendation, approved in November 1988, titled ''Power levels for data transmission over telephone lines.'' *V.4 is an ITU-T recommendation, approved in November 1988, titled ''General structure of signals of International Alphabet No. 5 code for character oriented data transmission over public telephone networks.'' *V.5 was an ITU-T recommendation, approved in November 1988, titled ''Standardization of data signall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V1 Gallery
V1 Gallery is a contemporary art gallery located in the Meatpacking District of Copenhagen, Denmark. It was founded in 2002 by designer Jesper Elg and photographer Peter Funch. V1 Gallery gained international notability by being the first art gallery in Scandinavia to exhibit international street art pioneers such as Banksy (UK) and Eine (UK), the Faile artist collective (US/JAP), Futura 2000 (US), Zevs (FR) and OBEY / Shepard Fairey (US). The gallery has been listed as "Copenhagen's coolest art gallery" by The New York Times, and listed in ArtNet's "Best contemporary galleries in Europe". The gallery's best known projects include: *The Boredom Project by Faile in 2002 *Banksy VS EINE by Banksy and EINE in 2003 *The Hunt For Your Family featuring artists such as Devendra Banhart, Adam Green (musician), and Chris Johanson curated by Galleri Loyal in 2004 * OBEY by Shepard Fairey in 2004 *Futura - Year In Pictures by Futura 2000 in 2005 *Random Happenings with Dash Snow in 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikon 1 V1
The Nikon 1 V1 is a Nikon 1 series high-speed mirrorless interchangeable-lens camera launched by Nikon on 21 September 2011. The successor is the Nikon 1 V2 announced on October 24, 2012. The CMOS sensor from Aptina is used, it has 10.1 MP, CX format, die size 16.9x17.9 mm // Chipworks Recent Teardowns, November 4, 2011 which it is relatively similar with 1" sensor size. See also * * |
LNER Class V1/V3
The London and North Eastern Railway (LNER) Class V1 and Class V3 were two classes of related 2-6-2T steam locomotive designed by Sir Nigel Gresley. A total of 82 V1s were built with 71 being rebuilt into the higher pressure V3s with an additional ten being built as V3s from the final batch of V1s. The V3 was a development of the V1 with increased boiler pressure and a resultant increase in tractive effort. Development history The development of large tank engines was somewhat delayed by problems on the Southern Railway following the Sevenoaks derailment thought to have been caused by the instability of the large K class 2-6-4 tanks. Gresley carried out stability tests on one of these locomotives and finding no trouble and without further delay produced his sophisticated V1 class suburban tank in 1930. This incorporated his 3-cylinder system and was the first example of all three cylinders and valve chests being incorporated into a single steel casting; this arrangement was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V1 (classification)
V1 is a Paralympic archery classification for people with visual disabilities. History A version of this classification first appeared in 1998 during the world championships, when the sport's governing body decided to pilot a classification programme. At the time, there was a classification called W2, which was for all standing archers with disabilities. Sport This is an archery classification for people with visual impairments. Becoming classified Classification is handled by FITA – International Archery Federation. World archery classification is done by at least three people. One of them must have a medical background. On the national level, there only needs to be one classifier. Archery classification is done by medical professionals. See also * Para-archery classification * Archery at the Summer Paralympics Para-archery has been contested at every Summer Paralympic Games since they were first held in 1960. Separate individual and team events are held for me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATC Code V01
V01A Allergens V01AA Allergen extracts :V01AA01 Feather :V01AA02 Grass pollen :V01AA03 House dust mites :V01AA04 Mould fungus and yeast fungus :V01AA05 Tree pollen :V01AA07 Insects :V01AA08 Food :V01AA09 Textiles :V01AA10 Flowers :V01AA11 Animal Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motilit ...s :V01AA20 Various References {{Reflist V01 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Base Form
A root (or root word) is the core of a word that is irreducible into more meaningful elements. In Morphology (linguistics), morphology, a root is a morphologically simple unit which can be left bare or to which a prefix or a suffix can attach. The root word is the primary lexicology, lexical unit of a word, and of a word family (this root is then called the base word), which carries aspects of semantics, semantic content and cannot be reduced into smaller constituents. Content words in nearly all languages contain, and may consist only of, root morphemes. However, sometimes the term "root" is also used to describe the word without its inflectional endings, but with its lexical endings in place. For example, ''chatters'' has the inflectional root or Lemma (morphology), lemma ''chatter'', but the lexical root ''chat''. Inflectional roots are often called stem (linguistics), stems, and a root in the stricter sense, a root morpheme, may be thought of as a monomorphemic stem. The trad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cepheid Variable
A Cepheid variable () is a type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude. A strong direct relationship between a Cepheid variable's luminosity and pulsation period established Cepheids as important indicators of cosmic benchmarks for scaling galactic and extragalactic distances. This robust characteristic of classical Cepheids was discovered in 1908 by Henrietta Swan Leavitt after studying thousands of variable stars in the Magellanic Clouds. This discovery allows one to know the true luminosity of a Cepheid by simply observing its pulsation period. This in turn allows one to determine the distance to the star, by comparing its known luminosity to its observed brightness. The term ''Cepheid'' originates from Delta Cephei in the constellation Cepheus, identified by John Goodricke in 1784, the first of its type to be so identified. The mechanics of stellar pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
