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https://en.wikipedia.org/wiki/Frequency%20drift | In electrical engineering, and particularly in telecommunications, frequency drift is an unintended and generally arbitrary offset of an oscillator from its nominal frequency. Causes may include component aging, changes in temperature that alter the piezoelectric effect in a crystal oscillator, or problems with a volt... |
https://en.wikipedia.org/wiki/Tapestry%20%28DHT%29 | Tapestry is a peer-to-peer overlay network which provides a distributed hash table, routing, and multicasting infrastructure for distributed applications. The Tapestry peer-to-peer system offers efficient, scalable, self-repairing, location-aware routing to nearby resources.
Introduction
The first generation of peer-... |
https://en.wikipedia.org/wiki/Winlink | Winlink, or formally, Winlink Global Radio Email (registered US Service Mark), also known as the Winlink 2000 Network, is a worldwide radio messaging system that uses amateur-band radio frequencies and government frequencies to provide radio interconnection services that include email with attachments, position reporti... |
https://en.wikipedia.org/wiki/Multiple%20rule-based%20problems | Multiple rule-based problems are problems containing various conflicting rules and restrictions. Such problems typically have an "optimal" solution, found by striking a balance between the various restrictions, without directly defying any of the aforementioned restrictions.
Solutions to such problems can either requi... |
https://en.wikipedia.org/wiki/Ornstein%20isomorphism%20theorem | In mathematics, the Ornstein isomorphism theorem is a deep result in ergodic theory. It states that if two Bernoulli schemes have the same Kolmogorov entropy, then they are isomorphic. The result, given by Donald Ornstein in 1970, is important because it states that many systems previously believed to be unrelated ar... |
https://en.wikipedia.org/wiki/Rakuten%20Advertising | Rakuten Advertising, formerly known as Rakuten Marketing, is an affiliate marketing service provider. The company, in 2005, claimed it was the largest pay-for-performance affiliate marketing network on the Internet. In 2005, Rakuten acquired LinkShare for US$425 million in cash, making LinkShare a wholly owned U.S. di... |
https://en.wikipedia.org/wiki/24%20%28puzzle%29 | The 24 puzzle is an arithmetical puzzle in which the objective is to find a way to manipulate four integers so that the end result is 24. For example, for the numbers 4, 7, 8, 8, a possible solution is .
The problem has been played as a card game in Shanghai since the 1960s, using playing cards. It has been known by o... |
https://en.wikipedia.org/wiki/Terbium%28III%29%20oxide | Terbium(III) oxide, also known as terbium sesquioxide, is a sesquioxide of the rare earth metal terbium, having chemical formula . It is a p-type semiconductor, which conducts protons, which is enhanced when doped with calcium. It may be prepared by the reduction of in hydrogen at 1300 °C for 24 hours.
It is a basic ... |
https://en.wikipedia.org/wiki/Plena%20Ilustrita%20Vortaro%20de%20Esperanto | Plena Ilustrita Vortaro de Esperanto (PIV; Complete Illustrated Dictionary of Esperanto) is a monolingual dictionary of the language Esperanto. It was first compiled in 1970 by a large team of Esperanto linguists and specialists under the guidance of Gaston Waringhien and is published by the Sennacieca Asocio Tutmonda ... |
https://en.wikipedia.org/wiki/Poussin%20proof | In number theory, the Poussin proof is the proof of an identity related to the fractional part of a ratio.
In 1838, Peter Gustav Lejeune Dirichlet proved an approximate formula for the average number of divisors of all the numbers from 1 to n:
where d represents the divisor function, and γ represents the Euler-Masche... |
https://en.wikipedia.org/wiki/Game%20accessibility | Within the field of human–computer interaction, accessibility of video games is considered a sub-field of computer accessibility, which studies how software and computers can be made accessible to users with various types of impairments. It can also include tabletop RPGs, board games, and related products.
In spring ... |
https://en.wikipedia.org/wiki/Current%20differencing%20buffered%20amplifier | A current differencing buffered amplifier (CDBA) is a multi-terminal active component with two inputs and two outputs and developed by Cevdet Acar and Serdar Özoğuz. Its block diagram can be seen from the figure. It is derived from the current feedback amplifier (CFA).
Basic operation
The characteristic equation of ... |
https://en.wikipedia.org/wiki/Ethyl%20methylphenylglycidate | Ethyl methylphenylglycidate, commonly known as strawberry aldehyde, is an organic compound used in the flavor industry in artificial fruit flavors, in particular strawberry.
Uses
Because of its pleasant taste and aroma, ethyl methylphenylglycidate finds use in the fragrance industry, in artificial flavors, and in cosm... |
https://en.wikipedia.org/wiki/Mark%20Kryder | Mark Howard Kryder (born October 7, 1943 in Portland, Oregon) was Seagate Corp.'s senior vice president of research and chief technology officer. Kryder holds a Bachelor of Science degree in electrical engineering from Stanford University and a Ph.D. in electrical engineering and physics from the California Institute o... |
https://en.wikipedia.org/wiki/Tom%20Maibaum | Thomas Stephen Edward Maibaum Fellow of the Royal Society of Arts (FRSA) is a computer scientist.
Maibaum has a Bachelor of Science (B.Sc.) undergraduate degree in pure mathematics from the University of Toronto, Canada (1970), and a Doctor of Philosophy (Ph.D.) in computer science from Queen Mary and Royal Holloway C... |
https://en.wikipedia.org/wiki/Digital%20credential | Digital credentials are the digital equivalent of paper-based credentials. Just as a paper-based credential could be a passport, a driver's license, a membership certificate or some kind of ticket to obtain some service, such as a cinema ticket or a public transport ticket, a digital credential is a proof of qualificat... |
https://en.wikipedia.org/wiki/Front%20Line%20%28video%20game%29 | is a military-themed run and gun video game released by Taito for arcades in November 1982. It was one of the first overhead run and gun games, a precursor to many similarly-themed games of the mid-to-late 1980s. Front Line is controlled with a joystick, a single button, and a rotary dial that can be pushed in like a ... |
https://en.wikipedia.org/wiki/Xybernaut | Xybernaut Corporation was a maker of wearable mobile computing hardware, software, and services. Its products included the Atigo tablet PC, Poma wearable computer, and the MA-V wearable computer.
The company was headquartered in Fairfax, Virginia, until 2006, when it moved to Chantilly, Virginia.
Although its first w... |
https://en.wikipedia.org/wiki/Acorn%20nut | An acorn nut, also referred to as crown hex nut, blind nut, cap nut, domed cap nut, or dome nut (UK), is a nut that has a domed end on one side. When used together with a threaded fastener with an external male thread, the domed end encloses the external thread, either to protect the thread or to protect nearby objects... |
https://en.wikipedia.org/wiki/Problem%20of%20future%20contingents | Future contingent propositions (or simply, future contingents) are statements about states of affairs in the future that are contingent: neither necessarily true nor necessarily false.
The problem of future contingents seems to have been first discussed by Aristotle in chapter 9 of his On Interpretation (De Interpreta... |
https://en.wikipedia.org/wiki/Whitney%20extension%20theorem | In mathematics, in particular in mathematical analysis, the Whitney extension theorem is a partial converse to Taylor's theorem. Roughly speaking, the theorem asserts that if A is a closed subset of a Euclidean space, then it is possible to extend a given function of A in such a way as to have prescribed derivatives a... |
https://en.wikipedia.org/wiki/Method%20of%20moments%20%28probability%20theory%29 | In probability theory, the method of moments is a way of proving convergence in distribution by proving convergence of a sequence of moment sequences. Suppose X is a random variable and that all of the moments
exist. Further suppose the probability distribution of X is completely determined by its moments, i.e., the... |
https://en.wikipedia.org/wiki/Ergodicity | In mathematics, ergodicity expresses the idea that a point of a moving system, either a dynamical system or a stochastic process, will eventually visit all parts of the space that the system moves in, in a uniform and random sense. This implies that the average behavior of the system can be deduced from the trajectory ... |
https://en.wikipedia.org/wiki/List%20of%20Java%20APIs | There are two types of Java programming language application programming interfaces (APIs):
The official core Java API, contained in the Android (Google), SE (OpenJDK and Oracle), MicroEJ. These packages (java.* packages) are the core Java language packages, meaning that programmers using the Java language had to use... |
https://en.wikipedia.org/wiki/SCVP | The Server-based Certificate Validation Protocol (SCVP) is an Internet protocol for determining the path between an X.509 digital certificate and a trusted root (Delegated Path Discovery) and the validation of that path (Delegated Path Validation) according to a particular validation policy.
Overview
When a relying p... |
https://en.wikipedia.org/wiki/Ka/Ks%20ratio | {{DISPLAYTITLE:Ka/Ks ratio}}
In genetics, the Ka/Ks ratio, also known as ω or dN/dS ratio, is used to estimate the balance between neutral mutations, purifying selection and beneficial mutations acting on a set of homologous protein-coding genes. It is calculated as the ratio of the number of nonsynonymous substitution... |
https://en.wikipedia.org/wiki/Fraunhofer%20Institute%20for%20Applied%20Optics%20and%20Precision%20Engineering | The Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), also referred to as the Fraunhofer IOF, is an institute of the Fraunhofer Society for the Advancement of Applied Research (FHG). The institute is based in Jena. Its activities are attributed to applied research and development in the branch of... |
https://en.wikipedia.org/wiki/Thai%20Institute%20of%20Chemical%20Engineering%20and%20Applied%20Chemistry | The Thai Institute of Chemical Engineering and Applied Chemistry (TIChE) () is a professional organization for chemical engineers. TIChE was established in 1996 to distinguish chemical engineers as a profession independent of chemists and mechanical engineers.
History
TIChE was established to force the chemical engin... |
https://en.wikipedia.org/wiki/Bear%20JJ1 | Bear JJ1 (2004 – 26 June 2006) was a brown bear whose travels and exploits in Austria and Germany in the first half of 2006 drew international attention. JJ1, also known as Bruno in the German press (some newspapers also gave the bear different names, such as Beppo or Petzi), is believed to have been the first brown be... |
https://en.wikipedia.org/wiki/Decision%20tree%20pruning | Pruning is a data compression technique in machine learning and search algorithms that reduces the size of decision trees by removing sections of the tree that are non-critical and redundant to classify instances. Pruning reduces the complexity of the final classifier, and hence improves predictive accuracy by the redu... |
https://en.wikipedia.org/wiki/Tsung | Tsung (formerly known as idx-Tsunami) is a stress testing tool written in the Erlang language and distributed under the GPL license. It can currently stress test HTTP, WebDAV, LDAP, MySQL, PostgreSQL, SOAP and XMPP servers. Tsung can simulate hundreds of simultaneous users on a single system. It can also function in a ... |
https://en.wikipedia.org/wiki/Shadow%20%28OS/2%29 | In the graphical Workplace Shell (WPS) of the OS/2 operating system, a shadow is an object that represents another object.
A shadow is a stand-in for any other object on the desktop, such as a document, an application, a folder, a hard disk, a network share or removable medium, or a printer. A target object can have ... |
https://en.wikipedia.org/wiki/Dynamic%20program%20analysis | Dynamic program analysis is analysis of computer software that involves executing the program in question (as opposed to static program analysis, which does not). Dynamic program analysis includes familiar techniques from software engineering such as unit testing, debugging, and measuring code coverage, but also includ... |
https://en.wikipedia.org/wiki/Topological%20entropy | In mathematics, the topological entropy of a topological dynamical system is a nonnegative extended real number that is a measure of the complexity of the system. Topological entropy was first introduced in 1965 by Adler, Konheim and McAndrew. Their definition was modelled after the definition of the Kolmogorov–Sinai, ... |
https://en.wikipedia.org/wiki/Ordinal%20date | An ordinal date is a calendar date typically consisting of a year and an ordinal number, ranging between 1 and 366 (starting on January 1), representing the multiples of a day, called day of the year or ordinal day number (also known as ordinal day or day number). The two parts of the date can be formatted as "YYYY-DDD... |
https://en.wikipedia.org/wiki/K%C5%91nig%27s%20theorem%20%28graph%20theory%29 | In the mathematical area of graph theory, Kőnig's theorem, proved by , describes an equivalence between the maximum matching problem and the minimum vertex cover problem in bipartite graphs. It was discovered independently, also in 1931, by Jenő Egerváry in the more general case of weighted graphs.
Setting
A vertex c... |
https://en.wikipedia.org/wiki/Coefficient%20diagram%20method | In control theory, the coefficient diagram method (CDM) is an algebraic approach applied to a polynomial loop in the parameter space, where a special diagram called a "coefficient diagram" is used as the vehicle to carry the necessary information, and as the criterion of good design. The performance of the closed loop ... |
https://en.wikipedia.org/wiki/Xylan | Xylan (; ) (CAS number: 9014-63-5) is a type of hemicellulose, a polysaccharide consisting mainly of xylose residues. It is found in plants, in the secondary cell walls of dicots and all cell walls of grasses. Xylan is the third most abundant biopolymer on Earth, after cellulose and chitin.
Composition
Xylans are po... |
https://en.wikipedia.org/wiki/Stable%20manifold | In mathematics, and in particular the study of dynamical systems, the idea of stable and unstable sets or stable and unstable manifolds give a formal mathematical definition to the general notions embodied in the idea of an attractor or repellor. In the case of hyperbolic dynamics, the corresponding notion is that of t... |
https://en.wikipedia.org/wiki/Cheating%20%28biology%29 | Cheating is a term used in behavioral ecology and ethology to describe behavior whereby organisms receive a benefit at the cost of other organisms. Cheating is common in many mutualistic and altruistic relationships. A cheater is an individual who does not cooperate (or cooperates less than their fair share) but can po... |
https://en.wikipedia.org/wiki/Weitzenb%C3%B6ck%20identity | In mathematics, in particular in differential geometry, mathematical physics, and representation theory a Weitzenböck identity, named after Roland Weitzenböck, expresses a relationship between two second-order elliptic operators on a manifold with the same principal symbol. Usually Weitzenböck formulae are implemented ... |
https://en.wikipedia.org/wiki/Windows%20NT%20processor%20scheduling | Windows NT processor scheduling refers to the process by which Windows NT determines which job (task) should be run on the computer processor at which time. Without scheduling, the processor would give attention to jobs based on when they arrived in the queue, which is usually not optimal. As part of the scheduling, t... |
https://en.wikipedia.org/wiki/WMBQ-CD | WMBQ-CD (channel 46) is a class A television station in New York City, affiliated with First Nations Experience. Owned by The WNET Group, it is sister to the city's two PBS member stations, Newark, New Jersey–licensed WNET (channel 13) and Garden City, New York–licensed WLIW (channel 21), as well as WNDT-CD (channel 14... |
https://en.wikipedia.org/wiki/Mycangium | The term mycangium (pl., mycangia) is used in biology for special structures on the body of an animal that are adapted for the transport of symbiotic fungi (usually in spore form). This is seen in many xylophagous insects (e.g. horntails and bark beetles), which apparently derive much of their nutrition from the digest... |
https://en.wikipedia.org/wiki/Axiom%20A | In mathematics, Smale's axiom A defines a class of dynamical systems which have been extensively studied and whose dynamics is relatively well understood. A prominent example is the Smale horseshoe map. The term "axiom A" originates with Stephen Smale. The importance of such systems is demonstrated by the chaotic hypo... |
https://en.wikipedia.org/wiki/%CE%92-Pinene | β-Pinene is a monoterpene, an organic compound found in plants. It is one of the two isomers of pinene, the other being α-pinene. It is colorless liquid soluble in alcohol, but not water. It has a woody-green pine-like smell.
This is one of the most abundant compounds released by forest trees. If oxidized in air, the ... |
https://en.wikipedia.org/wiki/Inhabited%20set | In mathematics, a set is inhabited if there exists an element .
In classical mathematics, the property of being inhabited is equivalent to being non-empty. However, this equivalence is not valid in constructive or intuitionistic logic, and so this separate terminology is mostly used in the set theory of constructive ... |
https://en.wikipedia.org/wiki/Distributed%20design%20patterns | In software engineering, a distributed design pattern is a design pattern focused on distributed computing problems.
Classification
Distributed design patterns can be divided into several groups:
Distributed communication patterns
Security and reliability patterns
Event driven patterns
Examples
MapReduce
Bulk sy... |
https://en.wikipedia.org/wiki/Central%20Bureau | The Central Bureau was one of two Allied signals intelligence (SIGINT) organisations in the South West Pacific area (SWPA) during World War II. Central Bureau was attached to the headquarters of the Supreme Commander, Southwest Pacific Area, General Douglas MacArthur. The role of the Bureau was to research and decrypt ... |
https://en.wikipedia.org/wiki/Texas%20Instruments%20DaVinci | The Texas Instruments DaVinci is a family of system on a chip processors that are primarily used in embedded video and vision applications. Many processors in the family combine a DSP core based on the TMS320 C6000 VLIW DSP family and an ARM CPU core into a single system on chip. By using both a general-purpose process... |
https://en.wikipedia.org/wiki/SGPIO | Serial general purpose input/output (SGPIO) is a four-signal (or four-wire) bus used between a host bus adapter (HBA) and a backplane. Of the four signals, three are driven by the HBA and one by the backplane. Typically, the HBA is a storage controller located inside a server, desktop, rack or workstation computer that... |
https://en.wikipedia.org/wiki/Scale%20space%20implementation | In the areas of computer vision, image analysis and signal processing, the notion of scale-space representation is used for processing measurement data at multiple scales, and specifically enhance or suppress image features over different ranges of scale (see the article on scale space). A special type of scale-space r... |
https://en.wikipedia.org/wiki/Polymelia | Polymelia is a birth defect in which an affected individual has more than the usual number of limbs. It is a type of dysmelia. In humans and most land-dwelling vertebrates, this means having five or more limbs. The extra limb is most commonly shrunken and/or deformed. The term is from Greek πολυ- "many", μέλεα "limbs".... |
https://en.wikipedia.org/wiki/International%20Association%20for%20Hydro-Environment%20Engineering%20and%20Research | The International Association for Hydro-Environment Engineering and Research (IAHR), founded in 1935, is a worldwide, non-profit, independent organisation of engineers and water specialists working in fields related to the hydro-environment and in particular with reference to hydraulics and its practical application. I... |
https://en.wikipedia.org/wiki/Rapid%20modes%20of%20evolution | Rapid modes of evolution have been proposed by several notable biologists after Charles Darwin proposed his theory of evolutionary descent by natural selection. In his book On the Origin of Species (1859), Darwin stressed the gradual nature of descent, writing:
It may be said that natural selection is daily and hourly... |
https://en.wikipedia.org/wiki/Immunochemistry | Immunochemistry is the study of the chemistry of the immune system. This involves the study of the properties, functions, interactions and production of the chemical components (antibodies/immunoglobulins, toxin, epitopes of proteins like CD4, antitoxins, cytokines/chemokines, antigens) of the immune system. It also ... |
https://en.wikipedia.org/wiki/Differentiation%20in%20Fr%C3%A9chet%20spaces | In mathematics, in particular in functional analysis and nonlinear analysis, it is possible to define the derivative of a function between two Fréchet spaces. This notion of differentiation, as it is Gateaux derivative between Fréchet spaces, is significantly weaker than the derivative in a Banach space, even between ... |
https://en.wikipedia.org/wiki/Chain%20loading | Chain loading is a method used by computer programs to replace the currently executing program with a new program, using a common data area to pass information from the current program to the new program. It occurs in several areas of computing.
Chain loading is similar to the use of overlays. Unlike overlays, howev... |
https://en.wikipedia.org/wiki/Core%20common%20area | The core common area is that .
Named after magnetic core memory, the term has persisted into the modern era and is commonly used by both the Fortran and BASIC languages.
See also
Chain loading
Operating system technology |
https://en.wikipedia.org/wiki/Scale-space%20axioms | In image processing and computer vision, a scale space framework can be used to represent an image as a family of gradually smoothed images. This framework is very general and a variety of scale space representations exist. A typical approach for choosing a particular type of scale space representation is to establis... |
https://en.wikipedia.org/wiki/Indole%20test | The indole test is a biochemical test performed on bacterial species to determine the ability of the organism to convert tryptophan into indole. This division is performed by a chain of a number of different intracellular enzymes, a system generally referred to as "tryptophanase."
Biochemistry
Indole is generated by r... |
https://en.wikipedia.org/wiki/Refactorable%20number | A refactorable number or tau number is an integer n that is divisible by the count of its divisors, or to put it algebraically, n is such that . The first few refactorable numbers are listed in as
1, 2, 8, 9, 12, 18, 24, 36, 40, 56, 60, 72, 80, 84, 88, 96, 104, 108, 128, 132, 136, 152, 156, 180, 184, 204, 225, 228, 23... |
https://en.wikipedia.org/wiki/Insular%20dwarfism | Insular dwarfism, a form of phyletic dwarfism, is the process and condition of large animals evolving or having a reduced body size when their population's range is limited to a small environment, primarily islands. This natural process is distinct from the intentional creation of dwarf breeds, called dwarfing. This pr... |
https://en.wikipedia.org/wiki/Unitary%20divisor | In mathematics, a natural number a is a unitary divisor (or Hall divisor) of a number b if a is a divisor of b and if a and are coprime, having no common factor other than 1. Equivalently, a divisor a of b is a unitary divisor if and only if every prime factor of a has the same multiplicity in a as it has in b.
The c... |
https://en.wikipedia.org/wiki/Charles%20Ezra%20Greene | Charles Ezra Greene (February 12, 1842 – 1903) was an American civil engineer, born in Cambridge, Massachusetts.
He graduated at Harvard in 1862 and at Massachusetts Institute of Technology in 1863, served as quartermaster during the last two years of the Civil War, and was United States assistant engineer from 1870 t... |
https://en.wikipedia.org/wiki/Alphabetic%20principle | According to the alphabetic principle, letters and combinations of letters are the symbols used to represent the speech sounds of a language based on systematic and predictable relationships between written letters, symbols, and spoken words. The alphabetic principle is the foundation of any alphabetic writing system (... |
https://en.wikipedia.org/wiki/Octadecyltrichlorosilane | Octadecyltrichlorosilane (ODTS or n-octadecyltrichlorosilane) is an organosilicon compound with the formula . A colorless liquid, it is used as a silanization agent to prepare hydrophobic stationary phase, for reversed-phase chromatography.
It is also evaluated for forming self-assembled monolayers on silicon dioxide ... |
https://en.wikipedia.org/wiki/Multi-scale%20approaches | The scale space representation of a signal obtained by Gaussian smoothing satisfies a number of special properties, scale-space axioms, which make it into a special form of multi-scale representation. There are, however, also other types of "multi-scale approaches" in the areas of computer vision, image processing and ... |
https://en.wikipedia.org/wiki/Strict%20differentiability | In mathematics, strict differentiability is a modification of the usual notion of differentiability of functions that is particularly suited to p-adic analysis. In short, the definition is made more restrictive by allowing both points used in the difference quotient to "move".
Basic definition
The simplest setting in... |
https://en.wikipedia.org/wiki/Computational%20visualistics | The term Computational visualistics addresses the whole range of scientifically investigating pictures "in" the computer.
Overview
Images take a rather prominent place in contemporary life in western societies. Together with language, they have been connected to human culture from the very beginning. For about one c... |
https://en.wikipedia.org/wiki/Label%20printer%20applicator | A label printer applicator is a basic robot that can automatically print and apply pressure-sensitive labels to various products. Some types of labeling include shipping labeling, content labeling, graphic images, and labeling to comply with specific standards such as those of GS1 and Universal Product Code U.P.C. A pr... |
https://en.wikipedia.org/wiki/Limit%20set | In mathematics, especially in the study of dynamical systems, a limit set is the state a dynamical system reaches after an infinite amount of time has passed, by either going forward or backwards in time. Limit sets are important because they can be used to understand the long term behavior of a dynamical system. A sy... |
https://en.wikipedia.org/wiki/Bar%20induction | Bar induction is a reasoning principle used in intuitionistic mathematics, introduced by L. E. J. Brouwer. Bar induction's main use is the intuitionistic derivation of the fan theorem, a key result used in the derivation of the uniform continuity theorem.
It is also useful in giving constructive alternatives to other... |
https://en.wikipedia.org/wiki/Stability%20theory | In mathematics, stability theory addresses the stability of solutions of differential equations and of trajectories of dynamical systems under small perturbations of initial conditions. The heat equation, for example, is a stable partial differential equation because small perturbations of initial data lead to small v... |
https://en.wikipedia.org/wiki/Stable%20manifold%20theorem | In mathematics, especially in the study of dynamical systems and differential equations, the stable manifold theorem is an important result about the structure of the set of orbits approaching a given hyperbolic fixed point. It roughly states that the existence of a local diffeomorphism near a fixed point implies the e... |
https://en.wikipedia.org/wiki/280%20%28number%29 | 280 (two hundred [and] eighty) is the natural number after 279 and before 281.
In mathematics
The denominator of the eighth harmonic number, 280 is an octagonal number. 280 is the smallest octagonal number that is a half of another octagonal number.
There are 280 plane trees with ten nodes.
As a consequence of this, ... |
https://en.wikipedia.org/wiki/290%20%28number%29 | 290 (two hundred [and] ninety) is the natural number following 289 and preceding 291.
In mathematics
The product of three primes, 290 is a sphenic number, and the sum of four consecutive primes (67 + 71 + 73 + 79). The sum of the squares of the divisors of 17 is 290.
Not only is it a nontotient and a noncototient, it... |
https://en.wikipedia.org/wiki/Kauri-butanol%20value | The kauri-butanol value ("Kb value") is an international, standardized measure of solvent power for a hydrocarbon solvent, and is governed by an ASTM standardized test, ASTM D1133. The result of this test is a scaleless index, usually referred to as the "Kb value". A higher Kb value means the solvent is more aggressive... |
https://en.wikipedia.org/wiki/Spin%20Hall%20effect | The spin Hall effect (SHE) is a transport phenomenon predicted by Russian physicists Mikhail I. Dyakonov and Vladimir I. Perel in 1971. It consists of the appearance of spin accumulation on the lateral surfaces of an electric current-carrying sample, the signs of the spin directions being opposite on the opposing bound... |
https://en.wikipedia.org/wiki/Seasonal%20thermal%20energy%20storage | Seasonal thermal energy storage (STES), also known as inter-seasonal thermal energy storage,
is the storage of heat or cold for periods of up to several months. The thermal energy can be collected whenever it is available and be used whenever needed, such as in the opposing season. For example, heat from solar collecto... |
https://en.wikipedia.org/wiki/Check%20Point%20Integrity | Check Point Integrity is an endpoint security software product developed by Check Point Software Technologies. It is designed to protect personal computers and the networks they connect to from computer worms, Trojan horses, spyware, and intrusion attempts by hackers. The software aims to stop new PC threats and attack... |
https://en.wikipedia.org/wiki/Cell%20software%20development | Software development for the Cell microprocessor involves a mixture of conventional development practices for the PowerPC-compatible PPU core, and novel software development challenges with regard to the functionally reduced SPU coprocessors.
Linux on Cell
An open source software-based strategy was adopted to accelera... |
https://en.wikipedia.org/wiki/Power%20dividers%20and%20directional%20couplers | Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used mostly in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An es... |
https://en.wikipedia.org/wiki/Cell%20microprocessor%20implementations | Cell microprocessors are multi-core processors that use cellular architecture for high performance distributed computing. The first commercial Cell microprocessor, the Cell BE, was designed for the Sony PlayStation 3. IBM designed the PowerXCell 8i for use in the Roadrunner supercomputer.
Implementation
First edition... |
https://en.wikipedia.org/wiki/Bridge%20management%20system | A bridge management system (BMS) is a set of methodologies and procedures for managing information about bridges. Such system is capable of document and process data along the entire life cycle of the structure steps: project design, construction, monitoring, maintenance and end of operation.
First used in literature ... |
https://en.wikipedia.org/wiki/Soil%20production%20function | Soil production function refers to the rate of bedrock weathering into soil as a function of soil thickness.
A general model suggested that the rate of physical weathering of bedrock (de/dt) can be represented as an exponential decline with soil thickness:
where h is soil thickness [m], P0 [mm/year] is the potential... |
https://en.wikipedia.org/wiki/Zero-order%20hold | The zero-order hold (ZOH) is a mathematical model of the practical signal reconstruction done by a conventional digital-to-analog converter (DAC). That is, it describes the effect of converting a discrete-time signal to a continuous-time signal by holding each sample value for one sample interval. It has several appli... |
https://en.wikipedia.org/wiki/Peter%20Samson | Peter R. Samson (born 1941 in Fitchburg, Massachusetts) is an American computer scientist, best known for creating pioneering computer software for the TX-0 and PDP-1.
Samson studied at the Massachusetts Institute of Technology (MIT) between 1958-1963. He wrote, with characteristic wit, the first editions of the Tech ... |
https://en.wikipedia.org/wiki/Carroll%20diagram | A Carroll diagram, Lewis Carroll's square, biliteral diagram or a two-way table is a diagram used for grouping things in a yes/no fashion. Numbers or objects are either categorised as 'x' (having an attribute x) or 'not x' (not having an attribute 'x'). They are named after Lewis Carroll, the pseudonym of polymath Char... |
https://en.wikipedia.org/wiki/Carry%20flag | In computer processors the carry flag (usually indicated as the C flag) is a single bit in a system status register/flag register used to indicate when an arithmetic carry or borrow has been generated out of the most significant arithmetic logic unit (ALU) bit position. The carry flag enables numbers larger than a sing... |
https://en.wikipedia.org/wiki/Parity%20flag | In computer processors the parity flag indicates if the numbers of set bits is odd or even in the binary representation of the result of the last operation. It is normally a single bit in a processor status register.
For example, assume a machine where a set parity flag indicates even parity. If the result of the las... |
https://en.wikipedia.org/wiki/Negative%20flag | In a computer processor the negative flag or sign flag is a single bit in a system status (flag) register used to indicate whether the result of the last mathematical operation produced a value in which the most significant bit (the left most bit) was set. In a two's complement interpretation of the result, the negativ... |
https://en.wikipedia.org/wiki/Duality%20%28electrical%20circuits%29 | In electrical engineering, electrical terms are associated into pairs called duals. A dual of a relationship is formed by interchanging voltage and current in an expression. The dual expression thus produced is of the same form, and the reason that the dual is always a valid statement can be traced to the duality of e... |
https://en.wikipedia.org/wiki/VTun | VTun is a networking application which can set up Virtual Tunnels over TCP/IP networks. It supports Internet Protocol (IP), Point-to-Point Protocol (PPP) and Serial Line Internet Protocol (SLIP) protocols. It exists as the reference implementation of the Tun/Tap user-space tunnel driver which was included in the Linux ... |
https://en.wikipedia.org/wiki/Number%20Forms | Number Forms is a Unicode block containing Unicode compatibility characters that have specific meaning as numbers, but are constructed from other characters. They consist primarily of vulgar fractions and Roman numerals. In addition to the characters in the Number Forms block, three fractions (¼, ½, and ¾) were inheri... |
https://en.wikipedia.org/wiki/DNA%20repair-deficiency%20disorder | A DNA repair-deficiency disorder is a medical condition due to reduced functionality of DNA repair.
DNA repair defects can cause an accelerated aging disease or an increased risk of cancer, or sometimes both.
DNA repair defects and accelerated aging
DNA repair defects are seen in nearly all of the diseases described... |
https://en.wikipedia.org/wiki/Sense%20%28molecular%20biology%29 | In molecular biology and genetics, the sense of a nucleic acid molecule, particularly of a strand of DNA or RNA, refers to the nature of the roles of the strand and its complement in specifying a sequence of amino acids. Depending on the context, sense may have slightly different meanings. For example, the negative-sen... |
https://en.wikipedia.org/wiki/List%20of%20MeSH%20codes%20%28D12.776%29 | The following is a partial list of the "D" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM).
This list continues the information at List of MeSH codes (D12.644). Codes following these are found at List of MeSH codes (D13). For other MeSH codes, see List of M... |
https://en.wikipedia.org/wiki/Recurrent%20point | In mathematics, a recurrent point for a function f is a point that is in its own limit set by f. Any neighborhood containing the recurrent point will also contain (a countable number of) iterates of it as well.
Definition
Let be a Hausdorff space and a function. A point is said to be recurrent (for ) if , i.e. if... |
https://en.wikipedia.org/wiki/Topological%20conjugacy | In mathematics, two functions are said to be topologically conjugate if there exists a homeomorphism that will conjugate the one into the other. Topological conjugacy, and related-but-distinct of flows, are important in the study of iterated functions and more generally dynamical systems, since, if the dynamics of on... |
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