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PCN Structure General
PCN or pcn may refer to: Arts and entertainment * Pennsylvania Cable Network, non-profit cable television network of Pennsylvania, US * ''Personal Computer News'', a defunct computer magazine * PCN (band), a Mexican metal band Organisations * Partido de Conciliación Nacional, former name of the National Coalition political party in El Salvador * Partidul Comuniştilor (Nepecerişti), the Communist Party in Romania Science and technology * Process control network, a communications network that transmits instructions and data between control and measurement units and SCADA equipment * Penicillin (PCN) * Pavement classification number, a code classifying types of surface at airports * Polychlorinated naphthalene, an organic pollutant * Potato cyst nematode, an agricultural pest * Program Composition Notation, a language for parallel programming * '' Polycycnis'' (Pcn), a genus of orchid * Personal communications network, mobile telephone system, Europe Other uses * Pecked curv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Cable Network
PCN (the Pennsylvania Cable Network) is a private, non-profit cable television network dedicated to 24-hour coverage of government and public affairs in the Commonwealth of Pennsylvania. Built on the C-SPAN model, it features live coverage of both Houses of the Pennsylvania General Assembly, as well as other forms of informational and educational programming. It is available on every cable system in the state, and is also available on line through thPCN Selectsubscription service. History The non-profit Pennsylvania Educational Communications System (PECS) was founded on August 29, 1979 by George Barco, who became the first president, his daughter Yolanda Barco and Joseph Gans. It was funded by eleven Pennsylvania cable television companies, and provided a network for distributing Educational-access television programming from Pennsylvania State University and headquartered in University Park, Pennsylvania. The network was officially launched in September of that year as Pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potato Cyst Nematode
Potato root nematodes or potato cyst nematodes (PCN) are 1-mm long roundworms belonging to the genus ''Globodera'', which comprises around 12 species. They live on the roots of plants of the family Solanaceae, such as potatoes and tomatoes. PCN cause growth retardation and, at very high population densities, damage to the roots and early senescence of plants. The nematode is not indigenous to Europe but originates from the Andes. Fields are free from PCN until an introduction occurs, after which the typical patches, or hotspots, occur on the farmland. These patches can become full field infestations when unchecked. Yield reductions can average up to 60% at high population densities. Biology and life cycle The eggs hatch in the presence of Solanoeclepine A, a substance secreted by the roots of host plants otherwise known as root exudates. The nematodes hatch when they grow into a second-stage juvenile (J2). At this stage, the J2 nematodes find host cells to feed off of. The pota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BINDT
The British Institute of Non-Destructive Testing or BINDT is a professional body for engineers and other technical professionals involved in non-destructive testing and condition monitoring in the United Kingdom. The institute was founded in 1976, by amalgamation of the ''Society of Non-Destructive Examination'' (SONDE) and the ''NDT Society of Great Britain'' (NDTS), which were both founded in 1954. BINDT is a licensed member institution of the Engineering Council and a full member of the European Federation of NDT (EFNDT) and the International Committee for NDT (ICNDT). Their headquarters is located in Northampton, UK. Certification BINDT maintains PCNPersonnel Certification in Non-Destructive Testing. PCN is a personnel certification scheme in NDT methods, welding inspection and condition monitoring, which is accredited by UKAS according to ISO 17024. PCN certification schemes for the major NDT methods conform to BS EN ISO 9712 (2012). PCN condition monitoring certification ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Post Christum Natum
The term ''ante Christum natum'' ( Latin for ''before Christ (was) born''), usually abbreviated to a. Chr. n., a.Ch.n., a.C.n., A.C.N., or ACN, denotes the years before the birth of Jesus Christ. It is a Latin equivalent to the English " BC" ("before Christ"). The phrase ''ante Christum natum'' is also seen shortened to ''ante Christum'' ("before Christ"), similarly abbreviated to ''a. Chr.'', ''A. C.'' or ''AC''. A related phrase, p. Chr. n., p. Ch. n., or ''post Christum natum'' complements a. Ch. n. and is equivalent to "'' Anno Domini''" (AD). In English, these phrases are rare and AC, ACN, and ''ante Christum natum'' are not in the ''Chicago Manual of Style'' (14th edition), the ''American Heritage Dictionary'' (3rd edition), or P. Kenneth Seidelmann's ''Explanatory Supplement to the Astronomical Almanac'' (1992, University Science Books). In other European languages, such as Italian ("a.c." or "a.C." for ''avanti Cristo''), a vernacular version is the standard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Putnam City North High School
Putnam City North High School (PCN, PC North) is a public high school situated in Northwest Oklahoma City, Oklahoma, United States It is accredited by the North Central Association of Secondary Schools and is one of three high schools in the Putnam City School District. Offering education in grades nine through twelve, North is among the highest scoring public schools in Oklahoma, ranging from End of Instruction tests to college admission exams. History Putnam City North High School opened its doors August 24, 1978.Putnam City North High School History (accessed June 15, 2010). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penalty Charge Notice
In the United Kingdom, a fixed penalty notice (FPN) is a notice giving an individual the opportunity to be made immune from prosecution for an alleged criminal offence in exchange for a fee. Fixed penalty notices were introduced in Britain in the 1980s to deal with minor parking offences. Originally used by police and traffic wardens, their use has extended to other public officials and authorities, as has the range of offences for which they can be used. In recent years, this has taken the form of using them to give police and public authorities in England, Scotland and Wales a realistic weapon against anti-social behaviour. They are designed to reduce paperwork on police and council officers by allowing low-level anti-social behaviour to be dealt with on the spot. Newer types of notice exist for disorder, environmental crime, truancy and noise. A fixed penalty notice is not a fine or criminal conviction because of the distinction that the recipient can opt for the matter to be d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pecked Curvilinear Nucleated
Pecked curvilinear nucleated (PCN), in archaeology, is a form of prehistoric rock carving. The term was originally proposed by Teresa Miller and Reed Haslam in 1976 to describe a widespread type of rock carving in western North America. The form is characterized by a circular or oval groove element, which results in a raised center area. The form is quite prevalent in California and is applied to a number of Native American rock carving sites in this portion of the United States. Examples Occurrences of this type of rock carving can be found at Ring Mountain, Marin County, California,C. Michael Hogan, 2008 and in Lakeport, California. See also * Petroglyph * Pictograph A pictogram, also called a pictogramme, pictograph, or simply picto, and in computer usage an icon, is a graphic symbol that conveys its meaning through its pictorial resemblance to a physical object. Pictographs are often used in writing and gr ... Notes References * Ken Hedges and James E. Workman (1983) '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Communications Network
Personal communications network (PCN) is the European digital cellular mobile telephone network, developed in accordance with GSM standards. The PCN system was first initiated by Lord Young, UK Secretary of State for Trade and Industry, in 1988. The main characteristics of PCN are as follows: # Operating frequency – 1.7–1.88 GHz (1710–1785 MHz and 1805–1880 MHz). # Uses 30 GHz or up for microwave back bone system. # Covers both small cells and large cells. # Coverage inside and outside buildings. # Hand over. # Cell delivery. # Portable hand set. # User intelligent network. PCN uses the DCS-1800 systems, which is similar to GSM The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation ( 2G) digital cellular networks used by mobile devices such as ..., but up converts the frequency to 1.7–1.88 GHz, therefore the network structure, the signal s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycycnis
''Polycycnis'', abbreviated in horticultural trade as Pcn, is a genus of orchid, comprising 17 species found in Central America, and northern South America.Dressler, R.L. 2003. Orchidaceae. En: Manual de Plantas de Costa Rica. Vol. 3. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.). Monographs in systematic botany from the Missouri Botanical Garden 93: 1–595. Species #'' Polycycnis acutiloba'' Schltr. - Colombia #'' Polycycnis annectans'' Dressler - Ecuador #'' Polycycnis aurita'' Dressler - Ecuador, Colombia #'' Polycycnis barbata'' (Lindl.) Rchb.f. - Colombia, Venezuela, Panama, Costa Rica, Honduras #'' Polycycnis blancoi'' G.Gerlach - Costa Rica #'' Polycycnis escobariana'' G.Gerlach - Colombia #'' Polycycnis gratiosa'' Endrés & Rchb.f. - Panama, Costa Rica #'' Polycycnis grayi'' Dodson - Ecuador #'' Polycycnis lehmannii'' Rolfe - Colombia #'' Polycycnis lepida'' Linden & Rchb.f. - Ecuador, Colombia, Peru #'' Polycycnis muscifera'' (Lindl. & Paxton) Rchb.f. - C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Program Composition Notation
Program Composition Notation (PCN) is a specification notation for building up larger programs from smaller modules or programs (usually written in C or Fortran). Efficient parallel programming is at the heart of PCN. Larger composed programs are intended to execute efficiently on single-processor machines, multiprocessors with shared memory or distributed multicomputers. PCN was developed at Argonne National Laboratory and the California Institute of Technology. PCN includes the language for specifying concurrent algorithms and interfaces to C and Fortran. There is also a PCN toolkit for workstations that allows applications to be developed for supercomputers which includes debugging and performance analysis tools. PCN is appropriate for applications benefiting from parallel computing such as fluid dynamics, and climate modelling Numerical climate models use quantitative methods to simulate the interactions of the important drivers of climate, including atmosphere, ocea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychlorinated Naphthalene
Polychlorinated naphthalene (PCN) are the products obtained upon treatment of naphthalene with chlorine. The generic chemical formula is C10 H8−(m+n) Cl(m+n). Commercial PCNs are mixtures of up to 75 components and byproducts.van de Plassche, E.; Schwegler, A. (2002)''Polychlorinated naphthalenes, Preliminary Risk Profile''Ministry of VROM/DGM, Netherlands The material is an oil or a waxy solid, depending on the degree of chlorination. PCNs were once used in insulating coatings for electrical wires, as well as other applications, but their use has been largely phased out. Chemical structure of PCN congeners There are 75 different PCN congeners. Production PCNs started to be produced for high-volume uses around 1910 in both Europe and the United States.Chlorinated naphthalenes , Chemical Assessment Rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer News
''Personal Computer News'' (''PCN'') was a magazine publication which reviewed software and hardware for computers. It was published initially fortnightly, and during the boom period of home computing within the United Kingdom. It was published by VNU Publications and had a female editor, Cyndy Miles, unusual for computer magazines of the time.Lesley Wells, "My blind date with a home computer", ''The Times'', 9 April 1983. Its first issue was published on 12 March 1983. Its last issue, number 110, was published on 11 May 1985. It had a circulation of 150,000 in 1983. ''PCN'' had a lot of competition which peaked around mid-1984 with about 96 rival titles. It closed with an estimated £1 million in debts. ''PCN'' was unusual in being a weekly publication (most of its rivals were monthly with only two weeklies) and was a higher quality print with a glossy cover. Many of the monthlies were also glossies but ''PCN'' had the high cover price of 50p compared to the other weeklies. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
