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https://en.wikipedia.org/wiki/Tent%20map | In mathematics, the tent map with parameter μ is the real-valued function fμ defined by
the name being due to the tent-like shape of the graph of fμ. For the values of the parameter μ within 0 and 2, fμ maps the unit interval [0, 1] into itself, thus defining a discrete-time dynamical system on it (equivalently, a rec... |
https://en.wikipedia.org/wiki/Hitori | Hitori (Japanese: "Alone" or "one person"; Hitori ni shite kure; literally "leave me alone") is a type of logic puzzle published by Nikoli.
Hitori is NP complete.
Rules
Hitori is played with a grid of squares or cells, with each cell initially containing a number. The game is played by eliminating squares/numbers a... |
https://en.wikipedia.org/wiki/Costas%20array | In mathematics, a Costas array can be regarded geometrically as a set of n points, each at the center of a square in an n×n square tiling such that each row or column contains only one point, and all of the n(n − 1)/2 displacement vectors between each pair of dots are distinct. This results in an ideal "thumbtack" auto... |
https://en.wikipedia.org/wiki/Chow-chow%20%28food%29 | Chow-chow (also spelled chowchow or chow chow) is a North American pickled relish.
History
Possibly chow-chow found its way to the Southern United States during the expulsion of the Acadian people from Nova Scotia and their settlement in Louisiana. It is eaten by itself or as a condiment on fish cakes, mashed potatoes... |
https://en.wikipedia.org/wiki/Stability%20radius | In mathematics, the stability radius of an object (system, function, matrix, parameter) at a given nominal point is the radius of the largest ball, centered at the nominal point, all of whose elements satisfy pre-determined stability conditions. The picture of this intuitive notion is this:
where denotes the nomi... |
https://en.wikipedia.org/wiki/Rehearsal%20letter | A rehearsal letter is a boldface letter of the alphabet in an orchestral score, and its corresponding parts, that provides the conductor, who typically leads rehearsals, with a convenient spot to tell the orchestra to begin at places other than the start of movements or pieces. Rehearsal letters are most often used in ... |
https://en.wikipedia.org/wiki/Triangle%20group | In mathematics, a triangle group is a group that can be realized geometrically by sequences of reflections across the sides of a triangle. The triangle can be an ordinary Euclidean triangle, a triangle on the sphere, or a hyperbolic triangle. Each triangle group is the symmetry group of a tiling of the Euclidean plane... |
https://en.wikipedia.org/wiki/Lebesgue%27s%20lemma | For Lebesgue's lemma for open covers of compact spaces in topology see Lebesgue's number lemma
In mathematics, Lebesgue's lemma is an important statement in approximation theory. It provides a bound for the projection error, controlling the error of approximation by a linear subspace based on a linear projection rela... |
https://en.wikipedia.org/wiki/SUNMOS | SUNMOS (Sandia/UNM Operating System) is an operating system jointly developed by Sandia National Laboratories and the Computer Science Department at the University of New Mexico. The goal of the project, started in 1991, is to develop a highly portable, yet efficient, operating system for massively parallel-distributed... |
https://en.wikipedia.org/wiki/SGI%20Crimson | The IRIS Crimson (code-named Diehard2) is a Silicon Graphics (SGI) computer released in 1992. It is the world's first 64-bit workstation.
Crimson is a member of Silicon Graphics's SGI IRIS 4D series of deskside systems; it is also known as the 4D/510 workstation. It is similar to other SGI IRIS 4D deskside workstation... |
https://en.wikipedia.org/wiki/Popular%20mathematics | Popular mathematics is mathematical presentation aimed at a general audience. Sometimes this is in the form of books which require no mathematical background and in other cases it is in the form of expository articles written by professional mathematicians to reach out to others working in different areas.
Notable wor... |
https://en.wikipedia.org/wiki/156%20%28number%29 | 156 (one hundred [and] fifty-six) is the natural number, following 155 and preceding 157.
In mathematics
156 is an abundant number, a pronic number, a dodecagonal number, and a refactorable number.
156 is the number of graphs on 6 unlabeled nodes.
156 is a repdigit in base 5 (1111), and also in bases 25, 38, 51, 77... |
https://en.wikipedia.org/wiki/Heun%20function | In mathematics, the local Heun function is the solution of Heun's differential equation that is holomorphic and 1 at the singular point z = 0. The local Heun function is called a Heun function, denoted Hf, if it is also regular at z = 1, and is called a Heun polynomial, denoted Hp, if it is regular at all three fi... |
https://en.wikipedia.org/wiki/Oleoresin | Oleoresins are semi-solid extracts composed of resin and essential or fatty oil, obtained by evaporation of the solvents used for their production. The oleoresin of conifers is known as crude turpentine or gum turpentine, which consists of oil of turpentine and rosin.
Properties
In contrast to essential oils obtained... |
https://en.wikipedia.org/wiki/Luis%20Caffarelli | Luis Ángel Caffarelli (; born December 8, 1948) is an Argentine–American mathematician. He studies partial differential equations and their applications.
Career
Caffarelli was born and grew up in Buenos Aires. He obtained his Masters of Science (1968) and Ph.D. (1972) at the University of Buenos Aires. His Ph.D. advis... |
https://en.wikipedia.org/wiki/Lebesgue%20constant | In mathematics, the Lebesgue constants (depending on a set of nodes and of its size) give an idea of how good the interpolant of a function (at the given nodes) is in comparison with the best polynomial approximation of the function (the degree of the polynomials are fixed). The Lebesgue constant for polynomials of de... |
https://en.wikipedia.org/wiki/Pumping%20lemma%20for%20regular%20languages | In the theory of formal languages, the pumping lemma for regular languages is a lemma that describes an essential property of all regular languages. Informally, it says that all sufficiently long strings in a regular language may be pumped—that is, have a middle section of the string repeated an arbitrary number of tim... |
https://en.wikipedia.org/wiki/Rabinovich%E2%80%93Fabrikant%20equations | The Rabinovich–Fabrikant equations are a set of three coupled ordinary differential equations exhibiting chaotic behaviour for certain values of the parameters. They are named after Mikhail Rabinovich and Anatoly Fabrikant, who described them in 1979.
System description
The equations are:
where α, γ are consta... |
https://en.wikipedia.org/wiki/Prosector | A prosector is a person with the special task of preparing a dissection for demonstration, usually in medical schools or hospitals. Many important anatomists began their careers as prosectors working for lecturers and demonstrators in anatomy and pathology.
The act of prosecting differs from that of dissecting. A pros... |
https://en.wikipedia.org/wiki/Java%20Card | Java Card is a software technology that allows Java-based applications (applets) to be run securely on smart cards and more generally on similar secure small memory footprint devices which are called "secure elements" (SE). Today, a Secure Element is not limited to its smart cards and other removable cryptographic toke... |
https://en.wikipedia.org/wiki/Q-theta%20function | In mathematics, the q-theta function (or modified Jacobi theta function) is a type of q-series which is used to define elliptic hypergeometric series.
It is given by
where one takes 0 ≤ |q| < 1. It obeys the identities
It may also be expressed as:
where is the q-Pochhammer symbol.
See also
elliptic hypergeometr... |
https://en.wikipedia.org/wiki/Mixminion | Mixminion is the standard implementation of the Type III anonymous remailer protocol. Mixminion can send and receive anonymous e-mail.
Mixminion uses a mix network architecture to provide strong anonymity, and prevent eavesdroppers and other attackers from linking senders and recipients. Volunteers run servers (called... |
https://en.wikipedia.org/wiki/Elliptic%20gamma%20function | In mathematics, the elliptic gamma function is a generalization of the q-gamma function, which is itself the q-analog of the ordinary gamma function. It is closely related to a function studied by , and can be expressed in terms of the triple gamma function. It is given by
It obeys several identities:
and
where θ is... |
https://en.wikipedia.org/wiki/Constitutional%20growth%20delay | Constitutional delay of growth and puberty (CDGP) is a term describing a temporary delay in the skeletal growth and thus height of a child with no physical abnormalities causing the delay. Short stature may be the result of a growth pattern inherited from a parent (familial) or occur for no apparent reason (idiopathic... |
https://en.wikipedia.org/wiki/Bessel%20filter | In electronics and signal processing, a Bessel filter is a type of analog linear filter with a maximally flat group delay (i.e., maximally linear phase response), which preserves the wave shape of filtered signals in the passband. Bessel filters are often used in audio crossover systems.
The filter's name is a referen... |
https://en.wikipedia.org/wiki/Picard%E2%80%93Fuchs%20equation | In mathematics, the Picard–Fuchs equation, named after Émile Picard and Lazarus Fuchs, is a linear ordinary differential equation whose solutions describe the periods of elliptic curves.
Definition
Let
be the j-invariant with and the modular invariants of the elliptic curve in Weierstrass form:
Note that the j-inv... |
https://en.wikipedia.org/wiki/Rate%20of%20heat%20flow | The rate of heat flow is the amount of heat that is transferred per unit of time in some material, usually measured in watt (joules per second). Heat is the flow of thermal energy driven by thermal non-equilibrium, so the term 'heat flow' is a redundancy (i.e. a pleonasm). Heat must not be confused with store... |
https://en.wikipedia.org/wiki/Riemann%27s%20differential%20equation | In mathematics, Riemann's differential equation, named after Bernhard Riemann, is a generalization of the hypergeometric differential equation, allowing the regular singular points to occur anywhere on the Riemann sphere, rather than merely at 0, 1, and . The equation is also known as the Papperitz equation.
The hyp... |
https://en.wikipedia.org/wiki/Causal%20dynamical%20triangulation | Causal dynamical triangulation (abbreviated as CDT), theorized by Renate Loll, Jan Ambjørn and Jerzy Jurkiewicz, is an approach to quantum gravity that, like loop quantum gravity, is background independent.
This means that it does not assume any pre-existing arena (dimensional space) but, rather, attempts to show ho... |
https://en.wikipedia.org/wiki/Human%20Genetic%20Diversity%3A%20Lewontin%27s%20Fallacy | "Human Genetic Diversity: Lewontin's Fallacy" is a 2003 paper by A. W. F. Edwards. He criticises an argument first made in Richard Lewontin's 1972 article "The Apportionment of Human Diversity", that the practice of dividing humanity into races is taxonomically invalid because any given individual will often have more ... |
https://en.wikipedia.org/wiki/Willmore%20energy | In differential geometry, the Willmore energy is a quantitative measure of how much a given surface deviates from a round sphere. Mathematically, the Willmore energy of a smooth closed surface embedded in three-dimensional Euclidean space is defined to be the integral of the square of the mean curvature minus the Gaus... |
https://en.wikipedia.org/wiki/Principal%20curvature | In differential geometry, the two principal curvatures at a given point of a surface are the maximum and minimum values of the curvature as expressed by the eigenvalues of the shape operator at that point. They measure how the surface bends by different amounts in different directions at that point.
Discussion
At eac... |
https://en.wikipedia.org/wiki/Curvature%20collineation | A curvature collineation (often abbreviated to CC) is vector field which preserves the Riemann tensor in the sense that,
where are the components of the Riemann tensor. The set of all smooth curvature collineations forms a Lie algebra under the Lie bracket operation (if the smoothness condition is dropped, the set... |
https://en.wikipedia.org/wiki/Hair%20clipper | A hair clipper, often individually called the apparent plurale tantum hair clippers (in a similar way to scissors), is a specialised tool used to cut human head hair. Hair clippers work on the same principle as scissors, but are distinct from scissors themselves and razors. Similar but heavier-duty implements are used ... |
https://en.wikipedia.org/wiki/Mitotoxin | A mitotoxin is a cytotoxic molecule targeted to specific cells by a mitogen. Generally found in snake venom. Mitotoxins are responsible for mediating cell death by interfering with protein or DNA synthesis. Some mechanisms by which mitotoxins can interfere with DNA or protein synthesis include the inactivation of ribo... |
https://en.wikipedia.org/wiki/Capecitabine | Capecitabine, sold under the brand name Xeloda among others, is a anticancer medication used to treat breast cancer, gastric cancer and colorectal cancer. For breast cancer it is often used together with docetaxel. It is taken by mouth.
Common side effects include abdominal pain, vomiting, diarrhea, weakness, and rash... |
https://en.wikipedia.org/wiki/Semileptonic%20decay | In particle physics the semileptonic decay of a hadron is a decay caused by the weak force in which one lepton (and the corresponding neutrino) is produced in addition to one or more hadrons. An example for this can be
→ + +
This is to be contrasted with purely hadronic decays, such as → + , which are also media... |
https://en.wikipedia.org/wiki/Spallation%20Neutron%20Source | The Spallation Neutron Source (SNS) is an accelerator-based neutron source facility in the U.S. that provides the most intense pulsed neutron beams in the world for scientific research and industrial development. Each year, this facility hosts hundreds of researchers from universities, national laboratories, and indust... |
https://en.wikipedia.org/wiki/Second-order%20cybernetics | Second-order cybernetics, also known as the cybernetics of cybernetics, is the recursive application of cybernetics to itself and the reflexive practice of cybernetics according to such a critique. It is cybernetics where "the role of the observer is appreciated and acknowledged rather than disguised, as had become tra... |
https://en.wikipedia.org/wiki/Manifold | In mathematics, a manifold is a topological space that locally resembles Euclidean space near each point. More precisely, an -dimensional manifold, or -manifold for short, is a topological space with the property that each point has a neighborhood that is homeomorphic to an open subset of -dimensional Euclidean space.
... |
https://en.wikipedia.org/wiki/Beta%20oxidation | In biochemistry and metabolism, beta oxidation (also β-oxidation) is the catabolic process by which fatty acid molecules are broken down in the cytosol in prokaryotes and in the mitochondria in eukaryotes to generate acetyl-CoA, which enters the citric acid cycle, and NADH and FADH2, which are co-enzymes used in the el... |
https://en.wikipedia.org/wiki/Television%20encryption | Television encryption, often referred to as scrambling, is encryption used to control access to pay television services, usually cable, satellite, or Internet Protocol television (IPTV) services.
History
Pay television exists to make revenue from subscribers, and sometimes those subscribers do not pay. The prevention ... |
https://en.wikipedia.org/wiki/Homeotropic%20alignment | In liquid crystals, homeotropic alignment is one of the ways of alignment of liquid crystalline molecules. Homeotropic alignment is the state in which a rod-like liquid crystalline molecule aligns perpendicularly to the substrate. In the polydomain state, the parts also are called homeotropic domains. In contrast, the ... |
https://en.wikipedia.org/wiki/Stationary%20spacetime | In general relativity, specifically in the Einstein field equations, a spacetime is said to be stationary if it admits a Killing vector that is asymptotically timelike.
Description and analysis
In a stationary spacetime, the metric tensor components, , may be chosen so that they are all independent of the time coordi... |
https://en.wikipedia.org/wiki/Daniel%20Pedoe | Dan Pedoe (29 October 1910, London – 27 October 1998, St Paul, Minnesota, USA) was an English-born mathematician and geometer with a career spanning more than sixty years. In the course of his life he wrote approximately fifty research and expository papers in geometry. He is also the author of various core books on ma... |
https://en.wikipedia.org/wiki/Hydra%20%28chess%29 | Hydra was a chess machine, designed by a team with Dr. Christian "Chrilly" Donninger, Dr. Ulf Lorenz, GM Christopher Lutz and Muhammad Nasir Ali. Since 2006 the development team consisted only of Donninger and Lutz. Hydra was under the patronage of the PAL Group and Sheikh Tahnoon Bin Zayed Al Nahyan of Abu Dhabi. The ... |
https://en.wikipedia.org/wiki/Association%20for%20Behavior%20Analysis%20International | The Association for Behavior Analysis International (ABAI) is a nonprofit organization dedicated to promoting behavior analysis. The organization has over 9,000 members. The group organizes conferences and publishes journals on the topic of applied behavior analysis (ABA). ABAI has issued detailed, specific position pa... |
https://en.wikipedia.org/wiki/Batcher%20odd%E2%80%93even%20mergesort | Batcher's odd–even mergesort
is a generic construction devised by Ken Batcher for sorting networks of size O(n (log n)2) and depth O((log n)2), where n is the number of items to be sorted. Although it is not asymptotically optimal, Knuth concluded in 1998, with respect to the AKS network that "Batcher's method is much ... |
https://en.wikipedia.org/wiki/Correlation%20dimension | In chaos theory, the correlation dimension (denoted by ν) is a measure of the dimensionality of the space occupied by a set of random points, often referred to as a type of fractal dimension.
For example, if we have a set of random points on the real number line between 0 and 1, the correlation dimension will be ν = 1... |
https://en.wikipedia.org/wiki/Process%20%28anatomy%29 | In anatomy, a process () is a projection or outgrowth of tissue from a larger body. For instance, in a vertebra, a process may serve for muscle attachment and leverage (as in the case of the transverse and spinous processes), or to fit (forming a synovial joint), with another vertebra (as in the case of the articular p... |
https://en.wikipedia.org/wiki/The%20Elements%20of%20Programming%20Style | The Elements of Programming Style, by Brian W. Kernighan and P. J. Plauger, is a study of programming style, advocating the notion that computer programs should be written not only to satisfy the compiler or personal programming "style", but also for "readability" by humans, specifically software maintenance engineers,... |
https://en.wikipedia.org/wiki/Natriuresis | Natriuresis is the process of sodium excretion in the urine through the action of the kidneys. It is promoted by ventricular and atrial natriuretic peptides as well as calcitonin, and inhibited by chemicals such as aldosterone. Natriuresis lowers the concentration of sodium in the blood and also tends to lower blood vo... |
https://en.wikipedia.org/wiki/F5b | F5b is a type of radio control electric model aircraft contest that consists of doing as many laps as possible between 2 poles 150 meters apart in 200 seconds followed by 10 minutes of thermalling, and then landing on a 30-meter landing circle. The laps must be made while gliding only, no motor allowed, so the motor i... |
https://en.wikipedia.org/wiki/List%20of%20battery%20sizes | This is a list of the sizes, shapes, and general characteristics of some common primary and secondary battery types in household, automotive and light industrial use.
The complete nomenclature for a battery specifies size, chemistry, terminal arrangement, and special characteristics. The same physically interchangeabl... |
https://en.wikipedia.org/wiki/Glaisher%E2%80%93Kinkelin%20constant | In mathematics, the Glaisher–Kinkelin constant or Glaisher's constant, typically denoted , is a mathematical constant, related to the -function and the Barnes -function. The constant appears in a number of sums and integrals, especially those involving gamma functions and zeta functions. It is named after mathematicia... |
https://en.wikipedia.org/wiki/Spanish%20fess | In heraldry and vexillology, a Spanish fess is a term occasionally used to describe the central horizontal stripe of a tricolour or triband flag that is twice the width of the stripes on either side of it.
The name is based on the most well-known example of this style of flag, the flag of Spain, and in analogy to the ... |
https://en.wikipedia.org/wiki/Electrolaser | An electrolaser is a type of electroshock weapon that is also a directed-energy weapon. It uses lasers to form an electrically conductive laser-induced plasma channel (LIPC). A fraction of a second later, a powerful electric current is sent down this plasma channel and delivered to the target, thus functioning overall ... |
https://en.wikipedia.org/wiki/AES%20key%20schedule | AES uses a key schedule to expand a short key into a number of separate round keys. The three AES variants have a different number of rounds. Each variant requires a separate 128-bit round key for each round plus one more. The key schedule produces the needed round keys from the initial key.
Round constants
The rou... |
https://en.wikipedia.org/wiki/Knuckle-walking | Knuckle-walking is a form of quadrupedal walking in which the forelimbs hold the fingers in a partially flexed posture that allows body weight to press down on the ground through the knuckles. Gorillas and chimpanzees use this style of locomotion, as do anteaters and platypuses.
Knuckle-walking helps with actions othe... |
https://en.wikipedia.org/wiki/Baire%20space%20%28set%20theory%29 | In set theory, the Baire space is the set of all infinite sequences of natural numbers with a certain topology. This space is commonly used in descriptive set theory, to the extent that its elements are often called "reals". It is denoted NN, ωω, by the symbol or also ωω, not to be confused with the countable ordina... |
https://en.wikipedia.org/wiki/Autotomy | Autotomy (from the Greek auto-, "self-" and tome, "severing", αὐτοτομία) or 'self-amputation', is the behaviour whereby an animal sheds or discards one or more of its own appendages, usually as a self-defense mechanism to elude a predator's grasp or to distract the predator and thereby allow escape. Some animals have t... |
https://en.wikipedia.org/wiki/CO-OPN | The CO-OPN (Concurrent Object-Oriented Petri Nets) specification language is based on both algebraic specifications and algebraic Petri nets formalisms. The former formalism represent the data structures aspects, while the latter stands for the behavioral and concurrent aspects of systems. In order to deal with large s... |
https://en.wikipedia.org/wiki/History%20of%20quantum%20field%20theory | In particle physics, the history of quantum field theory starts with its creation by Paul Dirac, when he attempted to quantize the electromagnetic field in the late 1920s. Heisenberg was awarded the 1932 Nobel Prize in Physics "for the creation of quantum mechanics". Major advances in the theory were made in the 1940s ... |
https://en.wikipedia.org/wiki/Lemniscate%20constant | In mathematics, the lemniscate constant is a transcendental mathematical constant that is the ratio of the perimeter of Bernoulli's lemniscate to its diameter, analogous to the definition of for the circle. Equivalently, the perimeter of the lemniscate is . The lemniscate constant is closely related to the lemniscat... |
https://en.wikipedia.org/wiki/Neutron-induced%20swelling | Neutron-induced swelling is the increase of volume and decrease of density of materials subjected to intense neutron radiation. Neutrons impacting the material's lattice rearrange its atoms, causing buildup of dislocations, voids, and Wigner energy. Together with the resulting strength reduction and embrittlement, it i... |
https://en.wikipedia.org/wiki/Undeletion | Undeletion is a feature for restoring computer files which have been removed from a file system by file deletion. Deleted data can be recovered on many file systems, but not all file systems provide an undeletion feature. Recovering data without an undeletion facility is usually called data recovery, rather than unde... |
https://en.wikipedia.org/wiki/Anatomical%20theatre | An anatomical theatre (Latin: ) was a specialised building or room, resembling a theatre, used in teaching anatomy at early modern universities. They were typically constructed with a tiered structure surrounding a central table, allowing a larger audience to see the dissection of cadavers more closely than would have ... |
https://en.wikipedia.org/wiki/Cauchy%20index | In mathematical analysis, the Cauchy index is an integer associated to a real rational function over an interval. By the Routh–Hurwitz theorem, we have the following interpretation: the Cauchy index of
r(x) = p(x)/q(x)
over the real line is the difference between the number of roots of f(z) located in the right half... |
https://en.wikipedia.org/wiki/Carrier%20generation%20and%20recombination | In the solid-state physics of semiconductors, carrier generation and carrier recombination are processes by which mobile charge carriers (electrons and electron holes) are created and eliminated. Carrier generation and recombination processes are fundamental to the operation of many optoelectronic semiconductor devices... |
https://en.wikipedia.org/wiki/Syn%20and%20anti%20addition | In organic chemistry, syn- and anti-addition are different ways in which substituent molecules can be added to an alkene () or alkyne (). The concepts of syn and anti addition are used to characterize the different reactions of organic chemistry by reflecting the stereochemistry of the products in a reaction.
The typ... |
https://en.wikipedia.org/wiki/Tanada%20effect | The Tanada effect refers to the adhesion of root tips to glass surfaces. It is believed to involve electric potentials. It is named for the scientist who first described the effect, Takuma Tanada.
The phenomenon was observed while Dr. Tanada was rinsing glassware and noticed that excised root tips occasionally stuck t... |
https://en.wikipedia.org/wiki/Delayed%20nuclear%20radiation | Delayed nuclear radiation is a form of nuclear decay. When an isotope decays into a very short-lived isotope and then decays again to a relatively long-lived isotope, the products of the second decay are delayed. The short-lived isotope is usually a meta-stable nuclear isomer.
For example, gallium-73 decays via beta d... |
https://en.wikipedia.org/wiki/Antilocution | Antilocution describes a form of prejudice in which negative verbal remarks against a person, group, or community, are made but not addressed directly to the subject.
History
American psychologist Gordon Allport coined this term in his 1954 book, The Nature of Prejudice. Antilocution is the first point on Allport's S... |
https://en.wikipedia.org/wiki/Chkrootkit | Chkrootkit (Check Rootkit) is a widely used Unix-based utility designed to aid system administrators in examining their systems for rootkits. Operating as a shell script, it leverages common Unix/Linux tools such as the strings and grep command. The primary purpose is to scan core system programs for identifying signat... |
https://en.wikipedia.org/wiki/DShield | DShield is a community-based collaborative firewall log correlation system. It receives logs from volunteers worldwide and uses them to analyze attack trends. It is used as the data collection engine behind the SANS Internet Storm Center (ISC). DShield was officially launched end of November 2000 by Johannes Ullrich. S... |
https://en.wikipedia.org/wiki/Latch-up | In electronics, a latch-up is a type of short circuit which can occur in an integrated circuit (IC). More specifically, it is the inadvertent creation of a low-impedance path between the power supply rails of a MOSFET circuit, triggering a parasitic structure which disrupts proper functioning of the part, possibly even... |
https://en.wikipedia.org/wiki/Mathematical%20psychology | Mathematical psychology is an approach to psychological research that is based on mathematical modeling of perceptual, thought, cognitive and motor processes, and on the establishment of law-like rules that relate quantifiable stimulus characteristics with quantifiable behavior (in practice often constituted by task pe... |
https://en.wikipedia.org/wiki/Hardware%20overlay | In computing, hardware overlay, a type of video overlay, provides a method of rendering an image to a display screen with a dedicated memory buffer inside computer video hardware. The technique aims to improve the display of a fast-moving video image — such as a computer game, a DVD, or the signal from a TV card. Most ... |
https://en.wikipedia.org/wiki/Chapman%20function | A Chapman function describes the integration of atmospheric absorption along a slant path on a spherical earth, relative to the vertical case. It applies to any quantity with a concentration decreasing exponentially with increasing altitude. To a first approximation, valid at small zenith angles, the Chapman function f... |
https://en.wikipedia.org/wiki/KPDX | KPDX (channel 49) is a television station licensed to Vancouver, Washington, United States, serving the Portland, Oregon area as an affiliate of MyNetworkTV. It is the only major commercial station in Portland that is licensed to the Washington side of the market.
KPDX is owned by Gray Television alongside Fox affilia... |
https://en.wikipedia.org/wiki/Potential%20temperature | The potential temperature of a parcel of fluid at pressure is the temperature that the parcel would attain if adiabatically brought to a standard reference pressure , usually . The potential temperature is denoted and, for a gas well-approximated as ideal, is given by
where is the current absolute temperature (i... |
https://en.wikipedia.org/wiki/Wireworld | Wireworld, alternatively WireWorld, is a cellular automaton first proposed by Brian Silverman in 1987, as part of his program Phantom Fish Tank. It subsequently became more widely known as a result of an article in the "Computer Recreations" column of Scientific American. Wireworld is particularly suited to simulating ... |
https://en.wikipedia.org/wiki/B%C3%A9zout%20matrix | In mathematics, a Bézout matrix (or Bézoutian or Bezoutiant) is a special square matrix associated with two polynomials, introduced by and and named after Étienne Bézout. Bézoutian may also refer to the determinant of this matrix, which is equal to the resultant of the two polynomials. Bézout matrices are sometimes ... |
https://en.wikipedia.org/wiki/WESH | WESH (channel 2) is a television station licensed to Daytona Beach, Florida, United States, serving the Orlando area as an affiliate of NBC. It is owned by Hearst Television alongside Clermont-licensed CW affiliate WKCF (channel 18). The stations share studios on North Wymore Road in Eatonville (using a Winter Park add... |
https://en.wikipedia.org/wiki/R.%20Duncan%20Luce | Robert Duncan Luce (May 16, 1925 – August 11, 2012) was an American mathematician and social scientist, and one of the most preeminent figures in the field of mathematical psychology. At the end of his life, he held the position of Distinguished Research Professor of Cognitive Science at the University of California, I... |
https://en.wikipedia.org/wiki/Beck%27s%20monadicity%20theorem | In category theory, a branch of mathematics, Beck's monadicity theorem gives a criterion that characterises monadic functors, introduced by in about 1964. It is often stated in dual form for comonads. It is sometimes called the Beck tripleability theorem because of the older term triple for a monad.
Beck's monadicit... |
https://en.wikipedia.org/wiki/Beck%27s%20theorem%20%28geometry%29 | In discrete geometry, Beck's theorem is any of several different results, two of which are given below. Both appeared, alongside several other important theorems, in a well-known paper by József Beck. The two results described below primarily concern lower bounds on the number of lines determined by a set of points in ... |
https://en.wikipedia.org/wiki/Scratch%20building | Scratch building is the process of building a scale model "from scratch", i.e. from raw materials, rather than building it from a commercial kit, kitbashing or buying it pre-assembled.
Scratch building is easiest if original plans of the subject exist; however, many models have been built from photographs by measuring... |
https://en.wikipedia.org/wiki/Parallels%20Workstation | Parallels Workstation is the first commercial software product released by Parallels, Inc., a developer of desktop and server virtualization software. The Workstation software consists of a virtual machine suite for Intel x86-compatible computers (running Microsoft Windows or Linux) (for Mac version, see Parallels Desk... |
https://en.wikipedia.org/wiki/Nuclear%20Power%202010%20Program | The "Nuclear Power 2010 Program" was launched in 2002 by President George W. Bush in 2002, 13 months after the beginning of his presidency, in order to restart orders for nuclear power reactors in the U.S. by providing subsidies for a handful of Generation III+ demonstration plants. The expectation was that these plant... |
https://en.wikipedia.org/wiki/Fimbriation | In heraldry and vexillology, fimbriation is the placement of small stripes of contrasting colour around common charges or ordinaries, usually in order for them to stand out from the background, but often simply due to the designer's subjective aesthetic preferences, or for a more technical reason (in heraldry only) to ... |
https://en.wikipedia.org/wiki/D-Bus | D-Bus (short for "Desktop Bus")
is a message-oriented middleware mechanism that allows communication between multiple processes running concurrently on the same machine. D-Bus was developed as part of the freedesktop.org project, initiated by GNOME developer Havoc Pennington to standardize services provided by Linux de... |
https://en.wikipedia.org/wiki/Isogonal%20conjugate | __notoc__
In geometry, the isogonal conjugate of a point with respect to a triangle is constructed by reflecting the lines about the angle bisectors of respectively. These three reflected lines concur at the isogonal conjugate of . (This definition applies only to points not on a sideline of triangle .) This i... |
https://en.wikipedia.org/wiki/Navigation%20mesh | A navigation mesh, or navmesh, is an abstract data structure used in artificial intelligence applications to aid agents in pathfinding through complicated spaces. This approach has been known since at least the mid-1980s in robotics, where it has been called a meadow map, and was popularized in video game AI in 2000.
... |
https://en.wikipedia.org/wiki/Slipstream%20%28computer%20science%29 | A slipstream processor is an architecture designed to reduce the length of a running program by removing the non-essential instructions.
It is a form of speculative computing.
Non-essential instructions include such things as results that are not written to memory, or compare operations that will always return true. A... |
https://en.wikipedia.org/wiki/Colortrak | Colortrak was a trademark used on several RCA color televisions beginning in the 1970s and lasting into the 1990s. After RCA was acquired by General Electric in 1986, GE began marketing sets identical to those from RCA. GE sold both RCA and GE consumer electronics lines to Thomson SA in 1988. RCA televisions with the C... |
https://en.wikipedia.org/wiki/Lazarus%20%28software%29 | Lazarus is a free, cross-platform, integrated development environment (IDE) for rapid application development (RAD) using the Free Pascal compiler. Its goal is to provide an easy-to-use development environment for programmers developing with the Object Pascal language, which is as close as possible to Delphi.
Software... |
https://en.wikipedia.org/wiki/Neutral%20particle%20oscillation | In particle physics, neutral particle oscillation is the transmutation of a particle with zero electric charge into another neutral particle due to a change of a non-zero internal quantum number, via an interaction that does not conserve that quantum number. Neutral particle oscillations were first investigated in 1954... |
https://en.wikipedia.org/wiki/Specific%20volume | In thermodynamics, the specific volume of a substance (symbol: , nu) is a mass-specific intrinsic property of the substance, defined as the quotient of the substance's volume () to its mass (). It is the reciprocal of density (rho) and it is also related to the molar volume and molar mass:
The standard unit of specif... |
https://en.wikipedia.org/wiki/OpenID | OpenID is an open standard and decentralized authentication protocol promoted by the non-profit OpenID Foundation. It allows users to be authenticated by co-operating sites (known as relying parties, or RP) using a third-party identity provider (IDP) service, eliminating the need for webmasters to provide their own ad ... |
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