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Pn.
PN may refer to: Arts and entertainment * ''Purple Noon'', a 1960 film * Patriotic Nigras, a griefing group in the game ''Second Life'' Business and economics * Pacific National, a rail freight company in Australia * Participatory notes, issued to unregistered overseas investors in Indian stock markets * Pennsylvania Northeastern Railroad (reporting mark PN) * Promissory note, a contract where one party makes an unconditional promise in writing to pay a sum of money to another * West Air (China) (IATA airline code PN) Organizations Navies * Pakistan Navy * Peruvian Navy * Philippine Navy * Portuguese Navy Political parties * National Renaissance Front, Partidul Naţiunii, a political party in Romania * Partit Nazzjonalista, a political party in Malta * Perikatan Nasional, a political coalition in Malaysia * Partido Nacional (Uruguay), a political party in Uruguay Places * Penang * Pitcairn Islands (ISO 3166-1 country code) * Palmerston North, a city in New Zealand * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partit Nazzjonalista
The Nationalist Party ( mt, Partit Nazzjonalista, PN) is one of the two major contemporary political parties in Malta, along with the Labour Party. It is a Christian-democratic, and conservative political party, and it has been also described as centrist or centre-right on the political spectrum. It is supportive of Malta's membership in the European Union. It is currently in opposition to the Labour Party. Since independence in 1964, the Nationalist Party has won six out of the thirteen general elections, in 1966, 1987, 1992, 1998 and 2003. In 2008 it won with a paper-thin majority of around 1500 votes. Ideology Malta's Nationalist Party is the successor to the Anti-Reform Party founded by Fortunato Mizzi in 1883, opposing taxation policies decreed by the British authorities and measures to anglicise the educational and judicial systems during the " Language Question" period. This would lead to the party openly siding with General Franco's fascist army in the Spanish Civil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petri Net
A Petri net, also known as a place/transition (PT) net, is one of several mathematical modeling languages for the description of distributed systems. It is a class of discrete event dynamic system. A Petri net is a directed bipartite graph that has two types of elements, places and transitions. Place elements are depicted as white circles and transition elements are depicted as rectangles. A place can contain any number of tokens, depicted as black circles. A transition is enabled if all places connected to it as inputs contain at least one token. Some sources state that Petri nets were invented in August 1939 by Carl Adam Petri—at the age of 13—for the purpose of describing chemical processes. Like industry standards such as UML activity diagrams, Business Process Model and Notation, and event-driven process chains, Petri nets offer a graphical notation for stepwise processes that include choice, iteration, and concurrent execution. Unlike these standards, Petri nets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitcairn Islands
The Pitcairn Islands (; Pitkern: '), officially the Pitcairn, Henderson, Ducie and Oeno Islands, is a group of four volcanic islands in the southern Pacific Ocean that form the sole British Overseas Territory in the Pacific Ocean. The four islands— Pitcairn, Henderson, Ducie and Oeno—are scattered across several hundred miles of ocean and have a combined land area of about . Henderson Island accounts for 86% of the land area, but only Pitcairn Island is inhabited. The islands nearest to the Pitcairn Islands are Mangareva (of French Polynesia) at 688 km to the west and Easter Island at 1,929 km to the east. The Pitcairn Islanders are a biracial ethnic group descended mostly from nine ''Bounty'' mutineers and a handful of Tahitian consorts—as is still apparent from the surnames of many of the islanders. The mutiny and its aftermath have been the subject of many books and films. As of January 2020, the territory had only 47 permanent inhabitants. History P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Party (Uruguay)
The National Party ( es, Partido Nacional, PN), also known as the White Party ( es, Partido Blanco), is a major political party in Uruguay. It was founded in 1836 by Manuel Oribe, making it the country's oldest active political party, and together with the Colorado Party, its origin dates back to the time of the creation of the Uruguayan State. Positioned on the centre-right of the political spectrum, the National Party is ideologically liberal, nationalist, Pan-Americanist and humanist. Considering the interim co-government of the '' Gobierno del Cerrito'' headed by Manuel Oribe, and the Defense Government from Montevideo led by the Colorado Joaquín Suarez, in the middle of the Uruguayan Civil War, and with the exception of the current administration of Luis Lacalle Pou, the PN has ruled the country for 35 years interruptedly throughout its history; This includes constitutional, interim, de facto presidents, and collegiate governments. Although General Manuel Oribe is reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Province Of Pordenone
The province of Pordenone ( it, provincia di Pordenone; ; vec, provincia de Pordenon) was a province in the autonomous region of Friuli-Venezia Giulia in Italy. Its capital was the city of Pordenone. The province was subdivided from the province of Udine in 1968. It had a total population of 312,794 inhabitants. The province was abolished on 30 September 2017. History Pordenone was settled before 2000 BCE and was situated along the boundary between Villanovan culture and Alpine Hallstatt culture. It was under the rule of Treviso during the Middle Ages, although it was sacked by Aquileian soldiers in 1233 CE. The Austrian House of Habsburg subsequently ruled the area between 1278 and 1508, although the land surrounding it was briefly entirely under the rule of Venice. In the 15th century it was an important centre for the production of paper, textiles, ceramics, silk, and wool, and attracted Tuscan merchants. In 1508, Venice occupied the city in response to calls from pro-Veneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Part Number
A part number (often abbreviated PN, P/N, part no., or part #) is an identifier of a particular part design or material used in a particular industry. Its purpose is to simplify reference to that item. A part number unambiguously identifies a part design within a single corporation, and sometimes across several corporations. For example, when specifying a screw, it is easier to refer to "HSC0424PP" than saying "Hardware, screw, machine, 4-40, 3/4" long, pan head, Phillips". In this example, "HSC0424PP" is the part number, and it may be prefixed in database fields as "PN HSC0424PP" or "P/N HSC0424PP". The part design versus instantiations of it As a part number is an identifier of a part ''design'' (independent of its instantiations), a serial number is a unique identifier of ''a particular instantiation'' of that part design. In other words, a part number identifies any particular (physical) part as being made to that one unique design; a serial number, when used, identi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudorandom Number Sequence
A pseudorandom number generator (PRNG), also known as a deterministic random bit generator (DRBG), is an algorithm for generating a sequence of numbers whose properties approximate the properties of sequences of random numbers. The PRNG-generated sequence is not truly random, because it is completely determined by an initial value, called the PRNG's ''seed'' (which may include truly random values). Although sequences that are closer to truly random can be generated using hardware random number generators, ''pseudorandom number generators'' are important in practice for their speed in number generation and their reproducibility. PRNGs are central in applications such as simulations (e.g. for the Monte Carlo method), electronic games (e.g. for procedural generation), and cryptography. Cryptographic applications require the output not to be predictable from earlier outputs, and more elaborate algorithms, which do not inherit the linearity of simpler PRNGs, are needed. Good statist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polynomial Vector Spaces
This page lists some examples of vector spaces. See vector space for the definitions of terms used on this page. See also: dimension, basis. ''Notation''. Let ''F'' denote an arbitrary field such as the real numbers R or the complex numbers C. Trivial or zero vector space The simplest example of a vector space is the trivial one: , which contains only the zero vector (see the third axiom in the Vector space article). Both vector addition and scalar multiplication are trivial. A basis for this vector space is the empty set, so that is the 0- dimensional vector space over ''F''. Every vector space over ''F'' contains a subspace isomorphic to this one. The zero vector space is conceptually different from the null space of a linear operator ''L'', which is the kernel of ''L''. (Incidentally, the null space of ''L'' is a zero space if and only if ''L'' is injective.) Field The next simplest example is the field ''F'' itself. Vector addition is just field addition, and scalar multi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polish Notation
Polish notation (PN), also known as normal Polish notation (NPN), Łukasiewicz notation, Warsaw notation, Polish prefix notation or simply prefix notation, is a mathematical notation in which operators ''precede'' their operands, in contrast to the more common infix notation, in which operators are placed ''between'' operands, as well as reverse Polish notation (RPN), in which operators ''follow'' their operands. It does not need any parentheses as long as each operator has a fixed number of operands. The description "Polish" refers to the nationality of logician Jan Łukasiewicz, who invented Polish notation in 1924. The term ''Polish notation'' is sometimes taken (as the opposite of ''infix notation'') to also include reverse Polish notation. When Polish notation is used as a syntax for mathematical expressions by programming language interpreters, it is readily parsed into abstract syntax trees and can, in fact, define a one-to-one representation for the same. Because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Path Graph
In the mathematical field of graph theory, a path graph or linear graph is a graph whose vertices can be listed in the order such that the edges are where . Equivalently, a path with at least two vertices is connected and has two terminal vertices (vertices that have degree 1), while all others (if any) have degree 2. Paths are often important in their role as subgraphs of other graphs, in which case they are called paths in that graph. A path is a particularly simple example of a tree, and in fact the paths are exactly the trees in which no vertex has degree 3 or more. A disjoint union of paths is called a linear forest. Paths are fundamental concepts of graph theory, described in the introductory sections of most graph theory texts. See, for example, Bondy and Murty (1976), Gibbons (1985), or Diestel (2005). As Dynkin diagrams In algebra, path graphs appear as the Dynkin diagrams of type A. As such, they classify the root system of type A and the Weyl group o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
P–n Junction
A p–n junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor. The "p" (positive) side contains an excess of holes, while the "n" (negative) side contains an excess of electrons in the outer shells of the electrically neutral atoms there. This allows electrical current to pass through the junction only in one direction. The p-n junction is created by doping, for example by ion implantation, diffusion of dopants, or by epitaxy (growing a layer of crystal doped with one type of dopant on top of a layer of crystal doped with another type of dopant). If two separate pieces of material were used, this would introduce a grain boundary between the semiconductors that would severely inhibit its utility by scattering the electrons and holes. p–n junctions are elementary "building blocks" of semiconductor electronic devices such as diodes, transistors, solar cells, light-emitting diodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic Nomenclature
Phylogenetic nomenclature is a method of nomenclature for taxa in biology that uses phylogenetic definitions for taxon names as explained below. This contrasts with the traditional approach, in which taxon names are defined by a ''type'', which can be a specimen or a taxon of lower rank, and a description in words. Phylogenetic nomenclature is currently regulated by the '' International Code of Phylogenetic Nomenclature'' (''PhyloCode''). Definitions Phylogenetic nomenclature ties names to clades, groups consisting of an ancestor and all its descendants. These groups can equivalently be called monophyletic. There are slightly different ways of specifying the ancestor, which are discussed below. Once the ancestor is specified, the meaning of the name is fixed: the ancestor and all organisms which are its descendants are included in the named taxon. Listing all these organisms (i.e. providing a full circumscription) requires the full phylogenetic tree to be known. In practice, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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