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C2 (ADL)
C2 or a derivative (C-2, C2, etc.) may refer to: Mathematics and physics * ''C''2, one of the common notations for the cyclic group of order 2 * ''C''2 differentiability class * ''C''2 or \Complex^2, the complex coordinate plane * ''c''2 the square of the speed of light (in the mass–energy equivalence formula) Biology * C2 domain, a protein structural domain * C2 regulatory sequence for the insulin gene * Apolipoprotein C2, a human apolipoprotein * In human anatomy, C2 may refer to: ** Cervical vertebra 2, the axis, one of the cervical vertebrae of the vertebral column ** Cervical spinal nerve 2 * Chlorophyll c2, a form of chlorophyll * Complement component 2 * Procyanidin C2, a plant phenolic compound * Prodelphinidin C2, a plant phenolic compound * Vitamin C2 (other) * the ATC code for ''Antihypertensives'', a subgroup of the Anatomical Therapeutic Chemical Classification System *C2 fragments, one of the types of products of catabolism pathways * Haplogroup C-M217, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclic Group
In abstract algebra, a cyclic group or monogenous group is a Group (mathematics), group, denoted C_n (also frequently \Z_n or Z_n, not to be confused with the commutative ring of P-adic number, -adic numbers), that is Generating set of a group, generated by a single element. That is, it is a set (mathematics), set of Inverse element, invertible elements with a single associative binary operation, and it contains an element g such that every other element of the group may be obtained by repeatedly applying the group operation to g or its inverse. Each element can be written as an integer Exponentiation, power of g in multiplicative notation, or as an integer multiple of g in additive notation. This element g is called a ''Generating set of a group, generator'' of the group. Every infinite cyclic group is isomorphic to the additive group \Z, the integers. Every finite cyclic group of Order (group theory), order n is isomorphic to the additive group of Quotient group, Z/''n''Z, the in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Y-chromosome DNA Haplogroup
In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by specific mutations in the non-Genetic recombination, recombining portions of DNA on the male-specific Y chromosome (Y-DNA). Individuals within a haplogroup share similar numbers of short tandem repeats (STRs) and single-nucleotide polymorphisms (SNPs). The Y-chromosome accumulates approximately two mutations per generation, "one mutation in every 30 million base pairs" and Y-DNA haplogroups represent significant branches of the Y-chromosome phylogenetic tree, each characterized by hundreds or even thousands of unique mutations. The Y-chromosomal most recent common ancestor (Y-MRCA), often referred to as Y-chromosomal Adam, is the most recent common ancestor from whom all currently living humans are descended Patrilineality, patrilineally. Y-chromosomal Adam is estimated to have lived around 236,000 years ago in Africa. By examining other population bottlenecks, most Eurasian men trace their descent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO 216
ISO 216 is an international standard for paper sizes, used around the world except in North America and parts of Latin America. The standard defines the "A", "B" and "C" series of paper sizes, which includes the A4, the most commonly available paper size worldwide. Two supplementary standards, ISO 217 and ISO 269, define related paper sizes; the ISO 269 "C" series is commonly listed alongside the A and B sizes. All ISO 216, ISO 217 and ISO 269 paper sizes (except some envelopes) have the same aspect ratio, , within rounding to millimetres. This ratio has the unique property that when cut or folded in half widthways, the halves also have the same aspect ratio. Each ISO paper size is one half of the area of the next larger size in the same series. Dimensions of A, B and C series History The oldest known mention of the advantages of basing a paper size on an aspect ratio of \sqrt is found in a letter written on 25 October 1786 by the German scientist Georg Christoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nimrod NRA/C2
The Nimrod NRA/C2 was the only Group C racing car ever built by Nimrod Racing Automobiles in partnership with Aston Martin. It ran initially in 1982 in the World Endurance Championship before also joining the IMSA GT Championship. The final NRA/C2 would be retired in 1984 after the planned NRA/C3 replacement had been cancelled, and the company went bankrupt. Development Beginning in 1981, Robin Hamilton hastily constructed a chassis for use as a test vehicle in preparation for competition in the 1982 season. This lone car, known as NRA/C1, was used to test design and mechanical features for the upcoming race car, the NRA/C2. For an engine, Aston Martin turned to their tuning arm Tickford for the development of a racing version of their production V8 engines seen in the V8 and V8 Vantage models. This engine, becoming known as "Development Prototype 1229" (DP1229), retained the same basic displacement of 5340 cc while being strengthened in order to handle the increased ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BRDC C2 Championship
The BRDC C2 Championship (sometimes referred to as the British C2 Championship) was a short lived sports car racing series which ran from 1988 to 1990. The series was for Group C cars which fit into the smaller, less powerful, and cheaper C2 category. All races were run in the United Kingdom. The British Racing Drivers' Club ran the series during its lifetime. History Meant as a replacement for the dwindling Thundersports series, the C2 Championship would serve to bring international sports car racing seen in the World Sportscar Championship to Britain. By using the smaller C2 class only, the series was able to encourage more teams to enter not only due to the relatively low cost of the cars, but also due to the lack of major automobile manufacturers to drive away competitors due to their dominance. This was also aided by the fact that there were already several British teams running C2 class cars on the international circuit. Although only seven cars would attend the opening ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group C2
Group C was a category of sports car racing introduced by the FIA in 1982 and continuing until 1993, with ''Group A'' for touring cars and ''Group B'' for GTs. It was designed to replace both Group 5 special production cars (closed top touring prototypes like Porsche 935) and Group 6 two-seat racing cars (open-top sportscar prototypes like Porsche 936). Group C was used in the FIA's World Endurance Championship (1982–1985), World Sports-Prototype Championship (1986–1990), World Sportscar Championship (1991–1992) and in the European Endurance Championship (1983 only). It was also used for other sports car racing series around the globe (All Japan Sports Prototype Championship, Supercup, Interserie). The final year for the class came in 1993. Broadly similar rules were used in the North American IMSA Grand Touring Prototype series ( GTP). History The roots of the Group C category lie in both FIA Group 6 and particularly in the GTP category introduced by the ACO at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C2 (classification)
In Paralympic sports, C2 is a para-cycling classification. The UCI recommends this be coded as MC2 or WC2. Definition PBS defined this classification as "Riders with upper or lower limb impairments and moderate to severe neurological ." ''The Telegraph'' defined this classification in 2011 as "C 1–5: Athletes with cerebral palsy, limb impairments and ." Classification history Cycling first became a Paralympic sport at the 1988 Summer Paralympics. In September 2006, governance for para-cycling passed from the International Paralympic Committee's International Cycling Committee to UCI at a meeting in Switzerland. When this happened, the responsibility of classifying the sport also changed. At the Paralympic Games For the 2016 Summer Paralympics in Rio, the International Paralympic Committee had a zero classification at the Games policy. This policy was put into place in 2014, with the goal of avoiding last minute changes in classes that would negatively impact athlete trai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C2 Radio Class
This is a list of broadcast station classes applicable in much of North America under international agreements between the United States, Canada and Mexico. Effective radiated power (ERP) and height above average terrain (HAAT) are listed unless otherwise noted. All radio and television stations within of the US-Canada or US-Mexico border must get approval by both the domestic and foreign agency. These agencies are Industry Canada/Canadian Radio-television and Telecommunications Commission (CRTC) in Canada, the Federal Communications Commission (FCC) in the US, and the Federal Telecommunications Institute (IFT) in Mexico. AM Station class descriptions All domestic (United States) AM stations are classified as A, B, C, or D. * A (formerly I) — clear-channel stations — 10 kW to 50 kW, 24 hours. **Class A stations are only protected within a radius of the transmitter site. **The old Class I was divided into three: Class I-A, I-B and I-N. NARBA distinguished ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C2 Pylon
A transmission tower (also electricity pylon, hydro tower, or pylon) is a tall structure, usually a lattice tower made of steel that is used to support an overhead power line. In electrical grids, transmission towers carry high-voltage transmission lines that transport bulk electric power from generating stations to electrical substations, from which electricity is delivered to end consumers; moreover, utility poles are used to support lower-voltage sub-transmission and distribution lines that transport electricity from substations to electricity customers. There are four categories of transmission towers: (i) the suspension tower, (ii) the dead-end terminal tower, (iii) the tension tower, and (iv) the transposition tower. The heights of transmission towers typically range from , although when longer spans are needed, such as for crossing water, taller towers are sometimes used. More transmission towers are needed to mitigate climate change, and as a result, transmission ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C2 Explosive
The Composition C family is a family of related US-specified plastic explosives consisting primarily of RDX. All can be moulded by hand for use in demolition work and packed by hand into shaped-charge devices. Variants have different proportions and plasticisers and include Composition C-1, Composition C-2, Composition C-3, and Composition C-4. History The term ''Composition'' is used for any explosive material compounded from several ingredients. In particular, in the 1940s the format "Composition " was used for various compositions of the (relatively) novel explosive RDX, such as Composition B and other variants. Development The original material was developed by the British during World War II, and was used in the Gammon bomb. It was standardised as Composition C when introduced to US service. This material consisted of 88.3% RDX and a mineral oil-based plasticiser and phlegmatiser. It suffered from a relatively limited range of serviceable temperatures, and was replaced by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C2 (Code Geass)
is the pseudonym of a fictional character in the '' Code Geass: Lelouch of the Rebellion'' franchise by Sunrise. With her real name kept from the audience, she first appeared in the 2006 initial anime season, and afterwards has appeared in many manga, OVA, anime, and video game spinoff. She is voiced by Yukana. Introduced as a captive human test subject of the villainous Holy Britannia Empire, C. C. is revealed to be an immortal young woman with special powers called the Geass. Sardonic, stubborn, and mysterious, she can give Geass powers to others, which she does to main protagonist Lelouch Lamperouge. She becomes an ally and protector of Lelouch, at times piloting a mech and leading the paramilitary group the Black Knights to do so. She later assists Lelouch at destroying other Geass users misusing their powers, including her former students, and supports the regime changes that follow. In the 2006 Anime Grand Prix, C.C. was awarded third place for most popular female c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C2 Centauri
The Bayer designations c Centauri and C Centauri are distinct. The designation c Centauri is shared by two star systems in the constellation Centaurus: * c1 Centauri (HD 129456) * c2 Centauri (HD 129685) The designation C Centauri is shared by three star systems: * C1 Centauri (V763 Centauri) * C2 Centauri (HD 100825) * C3 Centauri (HD 101067) See also * γ Centauri * Alpha Centauri C (Proxima Centauri) * σ Centauri Sigma Centauri, Latinisation of names, Latinized from σ Centauri, is the Bayer designation for a solitary star in the southern constellation of Centaurus. It is visible to the naked eye with an apparent visual magnitude of 3.91. A visual c ... * 3 Centauri {{Stars of Centaurus Centauri, c Centaurus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
