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https://en.wikipedia.org/wiki/24-cell%20honeycomb | In four-dimensional Euclidean geometry, the 24-cell honeycomb, or icositetrachoric honeycomb is a regular space-filling tessellation (or honeycomb) of 4-dimensional Euclidean space by regular 24-cells. It can be represented by Schläfli symbol {3,4,3,3}.
The dual tessellation by regular 16-cell honeycomb has Schläfli s... |
https://en.wikipedia.org/wiki/Liouville%27s%20theorem%20%28differential%20algebra%29 | In mathematics, Liouville's theorem, originally formulated by Joseph Liouville in 1833 to 1841, places an important restriction on antiderivatives that can be expressed as elementary functions.
The antiderivatives of certain elementary functions cannot themselves be expressed as elementary functions. These are called... |
https://en.wikipedia.org/wiki/Special-use%20permit | A special-use permit authorizes land uses that are allowed and encouraged by the ordinance and declared harmonious with the applicable zoning district.
Purpose
Land use is governed by a set of regulations generally known as ordinances or municipal codes, which are authorized by the state's zoning enabling law. Within... |
https://en.wikipedia.org/wiki/Beatty%20sequence | In mathematics, a Beatty sequence (or homogeneous Beatty sequence) is the sequence of integers found by taking the floor of the positive multiples of a positive irrational number. Beatty sequences are named after Samuel Beatty, who wrote about them in 1926.
Rayleigh's theorem, named after Lord Rayleigh, states that th... |
https://en.wikipedia.org/wiki/QPPB | The QoS Policy Propagation via BGP, often abbreviated to QPPB, is a mechanism that allows propagation of quality of service (QoS) policy and classification by the sending party based on access lists, community lists, and autonomous system paths in the Border Gateway Protocol (BGP), thus helping to classify based on des... |
https://en.wikipedia.org/wiki/Home%20server | A home server is a computing server located in a private computing residence providing services to other devices inside or outside the household through a home network or the Internet. Such services may include file and printer serving, media center serving, home automation control, web serving (on the network or Inter... |
https://en.wikipedia.org/wiki/Cardington%20test | The Cardington Fire Tests were a series of large-scale fire tests conducted in real structures (wood, steel-concrete composite, and concrete) at the BRE Cardington facility near Cardington, Bedfordshire, England, during the mid-1990s. After the tests, extensive computational and analytical studies of the behaviour of ... |
https://en.wikipedia.org/wiki/The%20Stone%20%28video%20game%29 | The Stone is an online game developed by web company Abject Modernity Internet Creations Inc. in 1995. The mystery game was created in 1996 but launched as a consumer product in 1997. People had to buy a physical stone containing the login credentials to the website, which was unheard of at the time. In 1999, The Stone... |
https://en.wikipedia.org/wiki/EtherSound | EtherSound is an audio-over-Ethernet technology for audio engineering and broadcast engineering applications. EtherSound is developed and licensed by Digigram.
EtherSound is intended by the developer to be compliant with IEEE 802.3 Ethernet standards. Just as the IEEE defines rates such as 100 Megabit and Gigabit Et... |
https://en.wikipedia.org/wiki/Poshlib | Posh is a software framework used in cross-platform software development. It was created by Brian Hook. It is BSD licensed and , at version 1.3.002.
The Posh software framework provides a header file and an optional C source file.
Posh does not provide alternatives where a host platform does not offer a feature, but ... |
https://en.wikipedia.org/wiki/Department%20of%20Biochemistry%2C%20University%20of%20Oxford | The Department of Biochemistry of Oxford University is located in the Science Area in Oxford, England. It is one of the largest biochemistry departments in Europe. The Biochemistry Department is part of the University of Oxford's Medical Sciences Division, the largest of the university's four academic divisions, which... |
https://en.wikipedia.org/wiki/Differential%20graded%20category | In mathematics, especially homological algebra, a differential graded category, often shortened to dg-category or DG category, is a category whose morphism sets are endowed with the additional structure of a differential graded -module.
In detail, this means that , the morphisms from any object A to another object B o... |
https://en.wikipedia.org/wiki/Sieving%20coefficient | In mass transfer, the sieving coefficient is a measure of equilibration between the concentrations of two mass transfer streams. It is defined as the mean pre- and post-contact concentration of the mass receiving stream divided by the pre- and post-contact concentration of the mass donating stream.
where
S is the si... |
https://en.wikipedia.org/wiki/List%20of%20ATSC%20standards | Below are the published ATSC standards for ATSC digital television service, issued by the Advanced Television Systems Committee.
A/49: Ghost Canceling Reference Signal for NTSC (for adjacent-channel interference or co-channel interference with analog NTSC stations nearby)
A/52B: audio data compression (Dolby AC-3 and ... |
https://en.wikipedia.org/wiki/Marine%20larval%20ecology | Marine larval ecology is the study of the factors influencing dispersing larvae, which many marine invertebrates and fishes have. Marine animals with a larva typically release many larvae into the water column, where the larvae develop before metamorphosing into adults.
Marine larvae can disperse over long distances, ... |
https://en.wikipedia.org/wiki/Supertramp%20%28ecology%29 | In ecology, a supertramp species is any type of animal which follows the "supertramp" strategy of high dispersion among many different habitats, towards none of which it is particularly specialized. Supertramp species are typically the first to arrive in newly available habitats, such as volcanic islands and freshly de... |
https://en.wikipedia.org/wiki/Carry%20operator | The carry operator, symbolized by the ¢ sign, is an abstraction of the operation of determining whether a portion of an adder network generates or propagates a carry. It is defined as follows:
¢
External links
http://www.aoki.ecei.tohoku.ac.jp/arith/mg/algorithm.html
Computer arithmetic |
https://en.wikipedia.org/wiki/Probabilistic%20design | Probabilistic design is a discipline within engineering design. It deals primarily with the consideration of the effects of random variability upon the performance of an engineering system during the design phase. Typically, these effects are related to quality and reliability. Thus, probabilistic design is a tool that... |
https://en.wikipedia.org/wiki/Dalmarnock%20fire%20tests | The Dalmarnock fire tests are a series of fire experiments that were conducted in a real high-rise building in the United Kingdom.
In 2006, the BRE Centre for Fire Safety Engineering at the University of Edinburgh, conducted this series of large-scale fire tests in a high-rise building in collaboration with the BBC se... |
https://en.wikipedia.org/wiki/Mobilome | The mobilome is the entire set of mobile genetic elements in a genome. Mobilomes are found in eukaryotes, prokaryotes, and viruses. The compositions of mobilomes differ among lineages of life, with transposable elements being the major mobile elements in eukaryotes, and plasmids and prophages being the major types in p... |
https://en.wikipedia.org/wiki/Well-pointed%20category | In category theory, a category with a terminal object is well-pointed if for every pair of arrows such that , there is an arrow such that . (The arrows are called the global elements or points of the category; a well-pointed category is thus one that has "enough points" to distinguish non-equal arrows.)
See also
... |
https://en.wikipedia.org/wiki/Thermal%20effusivity | In thermodynamics, a material's thermal effusivity, also known as thermal responsivity, is a measure of its ability to exchange thermal energy with its surroundings. It is defined as the square root of the product of the material's thermal conductivity () and its volumetric heat capacity () or as the ratio of thermal c... |
https://en.wikipedia.org/wiki/Algebraic%20differential%20equation | In mathematics, an algebraic differential equation is a differential equation that can be expressed by means of differential algebra. There are several such notions, according to the concept of differential algebra used.
The intention is to include equations formed by means of differential operators, in which the coef... |
https://en.wikipedia.org/wiki/Boyle%20temperature | The Boyle temperature is formally defined as the temperature for which the second virial coefficient, , becomes zero.
It is at this temperature that the attractive forces and the repulsive forces acting on the gas particles balance out
This is the virial equation of state and describes a real gas.
Since higher order... |
https://en.wikipedia.org/wiki/Generation%20time | In population biology and demography, generation time is the average time between two consecutive generations in the lineages of a population. In human populations, generation time typically has ranged from 20 to 30 years, with wide variation based on gender and society. Historians sometimes use this to date events, by... |
https://en.wikipedia.org/wiki/Standard%20map | The standard map (also known as the Chirikov–Taylor map or as the Chirikov standard map) is an area-preserving chaotic map from a square with side onto itself. It is constructed by a Poincaré's surface of section of the kicked rotator, and is defined by:
where and are taken modulo .
The properties of chaos of the ... |
https://en.wikipedia.org/wiki/BT%20Smart%20Hub | The BT Smart Hub (formerly BT Home Hub) is a family of wireless residential gateway router modems distributed by BT for use with their own products and services and those of wholesale resellers (i.e. LLUs) but not with other Internet services. Since v 5 Home/Smart Hubs support the faster Wi-Fi 802.11ac standard, in add... |
https://en.wikipedia.org/wiki/Marvell%20Software%20Solutions%20Israel | Marvell Software Solutions Israel, known as RADLAN Computer Communications Limited before 2007, is a wholly owned subsidiary of Marvell Technology Group, that specializes in local area network (LAN) technologies.
History
The company was founded in 1998 as a spin-off from RND, which was founded by brothers Yehuda and Z... |
https://en.wikipedia.org/wiki/Copiotroph | A copiotroph is an organism found in environments rich in nutrients, particularly carbon. They are the opposite to oligotrophs, which survive in much lower carbon concentrations.
Copiotrophic organisms tend to grow in high organic substrate conditions. For example, copiotrophic organisms grow in Sewage lagoons. They ... |
https://en.wikipedia.org/wiki/Electrochromatography | Electrochromatography is a chemical separation technique in analytical chemistry, biochemistry and molecular biology used to resolve and separate mostly large biomolecules such as proteins. It is a combination of size exclusion chromatography (gel filtration chromatography) and gel electrophoresis. These separation mec... |
https://en.wikipedia.org/wiki/Truncated%20differential%20cryptanalysis | In cryptography, truncated differential cryptanalysis is a generalization of differential cryptanalysis, an attack against block ciphers. Lars Knudsen developed the technique in 1994. Whereas ordinary differential cryptanalysis analyzes the full difference between two texts, the truncated variant considers differences ... |
https://en.wikipedia.org/wiki/JGroups | JGroups is a library for reliable one-to-one or one-to-many communication written in the Java language.
It can be used to create groups of processes whose members send messages to each other. JGroups enables developers to create reliable multipoint (multicast) applications where reliability is a deployment issue. JGro... |
https://en.wikipedia.org/wiki/History%20of%20general-purpose%20CPUs | The history of general-purpose CPUs is a continuation of the earlier history of computing hardware.
1950s: Early designs
In the early 1950s, each computer design was unique. There were no upward-compatible machines or computer architectures with multiple, differing implementations. Programs written for one machine w... |
https://en.wikipedia.org/wiki/WokFi | WokFi (a portmanteau derived from blending the words Wok + Wi-Fi) is a slang term for a style of homemade Wi-Fi antenna consisting of a crude parabolic antenna made with a low-cost Asian kitchen wok, spider skimmer or similar household metallic dish. The dish forms a directional antenna which is pointed at the wirele... |
https://en.wikipedia.org/wiki/Eukaryotic%20initiation%20factor | Eukaryotic initiation factors (eIFs) are proteins or protein complexes involved in the initiation phase of eukaryotic translation. These proteins help stabilize the formation of ribosomal preinitiation complexes around the start codon and are an important input for post-transcription gene regulation. Several initiation... |
https://en.wikipedia.org/wiki/Suppression%20subtractive%20hybridization | Subtractive hybridization is a technology that allows for PCR-based amplification of only cDNA fragments that differ between a control (driver) and experimental transcriptome. cDNA is produced from mRNA. Differences in relative abundance of transcripts are highlighted, as are genetic differences between species. The ... |
https://en.wikipedia.org/wiki/ID-MM7 | ID-MM7 is a protocol developed and promoted by the Liberty Alliance, driven by major mobile operators such as Vodafone and Telefónica Móviles, to standardize identity-based web services interfaces to mobile messaging.
The ID-MM7 specification adds significant value to existing web services. MM7 has long been used by o... |
https://en.wikipedia.org/wiki/Manufacturing%20Engineering%20Centre | The Manufacturing Engineering Centre (MEC) is an international R&D Centre of Excellence for Advanced Manufacturing and Information Technology. The MEC was founded in 1996 under the directorship of Professor Duc Truong Pham. The Centre forms part of Cardiff University, which dates back to 1883 and is one of Britain's m... |
https://en.wikipedia.org/wiki/Math%20Curse | Math Curse is a children's picture book written by Jon Scieszka and illustrated by Lane Smith. Published in 1995 through Viking Press, the book tells the story of a student who is cursed by the manner in which mathematics is connected to everyday life. In 2009, a film based on the book was released by Weston Woods Stu... |
https://en.wikipedia.org/wiki/Cellular%20manufacturing | Cellular manufacturing is a process of manufacturing which is a subsection of just-in-time manufacturing and lean manufacturing encompassing group technology. The goal of cellular manufacturing is to move as quickly as possible, make a wide variety of similar products, while making as little waste as possible. Cellular... |
https://en.wikipedia.org/wiki/Polyanhydride | Polyanhydrides are a class of biodegradable polymers characterized by anhydride bonds that connect repeat units of the polymer backbone chain. Their main application is in the medical device and pharmaceutical industry. In vivo, polyanhydrides degrade into non-toxic diacid monomers that can be metabolized and eliminate... |
https://en.wikipedia.org/wiki/Manual%20testing | Compare with Test automation.
Manual testing is the process of manually testing software for defects. It requires a tester to play the role of an end user where by they use most of the application's features to ensure correct behaviour. To guarantee completeness of testing, the tester often follows a written test plan... |
https://en.wikipedia.org/wiki/Hybrid%20ternary%20code | In telecommunications, the hybrid (H-) ternary line code is a line code that operates on a hybrid principle combining the binary non-return-to-zero-level (NRZL) and the polar return-to-zero (RZ) codes.
The H-ternary code has three levels for signal representation; these are positive (+), zero (0), and negative (−). Th... |
https://en.wikipedia.org/wiki/Microscopic%20traffic%20flow%20model | Microscopic traffic flow models are a class of scientific models of vehicular traffic dynamics.
In contrast, to macroscopic models, microscopic traffic flow models simulate single vehicle-driver units, so the dynamic variables of the models represent microscopic properties like the position and velocity of single vehi... |
https://en.wikipedia.org/wiki/Quadratically%20constrained%20quadratic%20program | In mathematical optimization, a quadratically constrained quadratic program (QCQP) is an optimization problem in which both the objective function and the constraints are quadratic functions. It has the form
where P0, …, Pm are n-by-n matrices and x ∈ Rn is the optimization variable.
If P0, …, Pm are all positive sem... |
https://en.wikipedia.org/wiki/MDMX | The MDMX (MIPS Digital Media eXtension), also known as MaDMaX, is an extension to the MIPS architecture released in October 1996 at the Microprocessor Forum.
History
MDMX was developed to accelerate multimedia applications that were becoming more popular and common in the 1990s on RISC and CISC systems.
Functionalit... |
https://en.wikipedia.org/wiki/Valve%20RF%20amplifier | A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.) is a device for electrically amplifying the power of an electrical radio frequency signal.
Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for rece... |
https://en.wikipedia.org/wiki/Mandat%20International | Mandat International, also known as the International Cooperation Foundation, is an international non-governmental organization based in Geneva, Switzerland with consultative status with the United Nations Economic and Social Council, the UNDPI, and the United Nations Conference on Trade and Development.
History
Manda... |
https://en.wikipedia.org/wiki/Algebraic%20cycle | In mathematics, an algebraic cycle on an algebraic variety V is a formal linear combination of subvarieties of V. These are the part of the algebraic topology of V that is directly accessible by algebraic methods. Understanding the algebraic cycles on a variety can give profound insights into the structure of the var... |
https://en.wikipedia.org/wiki/Dragon%20Knight%20II | Dragon Knight II (ドラゴンナイトII) is a fantasy-themed eroge role-playing video game in the Dragon Knight franchise that was originally developed and published by ELF Corporation in 1990-1991 only in Japan as the first sequel to the original Dragon Knight game from 1989. The game is an erotic dungeon crawler in which a young... |
https://en.wikipedia.org/wiki/Submittals%20%28construction%29 | Submittals in construction management can include: shop drawings, material data, samples, and product data. Submittals are required primarily for the architect and engineer to verify that the correct products will be installed on the project.
This process also gives the architect and sub-consultants the opportunity to... |
https://en.wikipedia.org/wiki/Mendelian%20error | A Mendelian error in the genetic analysis of a species, describes an allele in an individual which could not have been received from either of its biological parents by Mendelian inheritance. Inheritance is defined by a set of related individuals who have the same or similar phenotypes for a locus of a particular gene... |
https://en.wikipedia.org/wiki/Tank%20blanketing | Tank blanketing, also called gas sealing or tank padding, is the process of applying a gas to the empty space in a storage container. The term storage container here refers to any container that is used to store products, regardless of its size. Though tank blanketing is used for a variety of reasons, it typically invo... |
https://en.wikipedia.org/wiki/Model-specific%20register | A model-specific register (MSR) is any of various control registers in the x86 system architecture used for debugging, program execution tracing, computer performance monitoring, and toggling certain CPU features.
History
With the introduction of the 80386 processor, Intel began introducing "experimental" features tha... |
https://en.wikipedia.org/wiki/Blittable%20types | Blittable types are data types in the Microsoft .NET Framework that have an identical presentation in memory for both managed and unmanaged code. Understanding the difference between blittable and non-blittable types can aid in using COM Interop or P/Invoke, two techniques for interoperability in .NET applications.
Or... |
https://en.wikipedia.org/wiki/Spectrum%20of%20theistic%20probability | Popularized by Richard Dawkins in The God Delusion, the spectrum of theistic probability is a way of categorizing one's belief regarding the probability of the existence of a deity.
Atheism, theism, and agnosticism
J. J. C. Smart argues that the distinction between atheism and agnosticism is unclear, and many people... |
https://en.wikipedia.org/wiki/Evolutionary%20physiology | Evolutionary physiology is the study of the biological evolution of physiological structures and processes; that is, the manner in which the functional characteristics of individuals in a population of organisms have responded to natural selection across multiple generations during the history of the population. It is ... |
https://en.wikipedia.org/wiki/Nucleic%20acid%20quantitation | In molecular biology, quantitation of nucleic acids is commonly performed to determine the average concentrations of DNA or RNA present in a mixture, as well as their purity. Reactions that use nucleic acids often require particular amounts and purity for optimum performance. To date, there are two main approaches used... |
https://en.wikipedia.org/wiki/Internet%20Routing%20Registry | An Internet Routing Registry (IRR) is a database of Internet route objects for determining, and sharing route and related information used for configuring routers, with a view to avoiding problematic issues between Internet service providers.
The Internet routing registry works by providing an interlinked hierarchy of... |
https://en.wikipedia.org/wiki/Biocultural%20diversity | Biocultural diversity is defined by Luisa Maffi, co-founder and director of Terralingua, as "the diversity of life in all its manifestations: biological, cultural, and linguistic — which are interrelated (and possibly coevolved) within a complex socio-ecological adaptive system." "The diversity of life is made up not o... |
https://en.wikipedia.org/wiki/Computer%20audition | Computer audition (CA) or machine listening is the general field of study of algorithms and systems for audio interpretation by machines. Since the notion of what it means for a machine to "hear" is very broad and somewhat vague, computer audition attempts to bring together several disciplines that originally dealt wit... |
https://en.wikipedia.org/wiki/Kinematic%20chain | In mechanical engineering, a kinematic chain is an assembly of rigid bodies connected by joints to provide constrained motion that is the mathematical model for a mechanical system. As the word chain suggests, the rigid bodies, or links, are constrained by their connections to other links. An example is the simple op... |
https://en.wikipedia.org/wiki/Phased-array%20optics | Phased-array optics is the technology of controlling the phase and amplitude of light waves transmitting, reflecting, or captured (received) by a two-dimensional surface using adjustable surface elements. An optical phased array (OPA) is the optical analog of a radio-wave phased array. By dynamically controlling the op... |
https://en.wikipedia.org/wiki/Alternative%20beta | Alternative beta is the concept of managing volatile "alternative investments", often through the use of hedge funds. Alternative beta is often also referred to as "alternative risk premia".
Researcher Lars Jaeger says that the return from an investment mainly results from exposure to systematic risk factors. These ex... |
https://en.wikipedia.org/wiki/Mitigation%20of%20seismic%20motion | Mitigation of seismic motion is an important factor in earthquake engineering and construction in earthquake-prone areas. The destabilizing action of an earthquake on constructions may be direct (seismic motion of the ground) or indirect (earthquake-induced landslides, liquefaction of the foundation soils and waves of ... |
https://en.wikipedia.org/wiki/Digraphia | In sociolinguistics, digraphia refers to the use of more than one writing system for the same language. Synchronic digraphia is the coexistence of two or more writing systems for the same language, while diachronic digraphia (or sequential digraphia) is the replacement of one writing system by another for a particular... |
https://en.wikipedia.org/wiki/John%20Mallard | John Rowland Mallard OBE FRSE FREng (14 January 1927 – 25 February 2021) was an English physicist and professor of Medical Physics at the University of Aberdeen from 1965 until his retirement in 1992. He was known for setting up and leading the team that developed the first magnetic resonance imaging (MRI) full body sc... |
https://en.wikipedia.org/wiki/Right%20to%20know | Right to know is a human right enshrined in law in several countries. UNESCO defines it as the right for people to "participate in an informed way in decisions that affect them, while also holding governments and others accountable". It pursues universal access to information as essential foundation of inclusive knowl... |
https://en.wikipedia.org/wiki/Common%20Public%20Radio%20Interface | The Common Public Radio Interface (CPRI) standard defines an interface between Radio Equipment Control (REC) and Radio Equipment (RE). Oftentimes, CPRI links are used to carry data between cell sites and base stations.
The purpose of CPRI is to allow replacement of a copper or coax cable connection between a radio tra... |
https://en.wikipedia.org/wiki/Euprymna%20scolopes |
Euprymna scolopes, also known as the Hawaiian bobtail squid, is a species of bobtail squid in the family Sepiolidae native to the central Pacific Ocean, where it occurs in shallow coastal waters off the Hawaiian Islands and Midway Island. The type specimen was collected off the Hawaiian Islands and is located at the N... |
https://en.wikipedia.org/wiki/OLE%20DB%20for%20OLAP | OLE DB for OLAP (Object Linking and Embedding Database for Online Analytical Processing abbreviated ODBO) is a Microsoft published specification and an industry standard for multi-dimensional data processing. ODBO is the standard application programming interface (API) for exchanging metadata and data between an OLAP s... |
https://en.wikipedia.org/wiki/History%20of%20algebra | Algebra can essentially be considered as doing computations similar to those of arithmetic but with non-numerical mathematical objects. However, until the 19th century, algebra consisted essentially of the theory of equations. For example, the fundamental theorem of algebra belongs to the theory of equations and is not... |
https://en.wikipedia.org/wiki/Generator%20%28category%20theory%29 | In mathematics, specifically category theory, a family of generators (or family of separators) of a category is a collection of objects in , such that for any two distinct morphisms in , that is with , there is some in and some morphism such that If the collection consists of a single object , we say it is a gen... |
https://en.wikipedia.org/wiki/Auto%20insurance%20risk%20selection | Auto insurance risk selection is the process by which vehicle insurers determine whether or not to insure an individual and what insurance premium to charge. Depending on the jurisdiction, the insurance premium can be either mandated by the government or determined by the insurance company in accordance to a framework... |
https://en.wikipedia.org/wiki/1%20%2B%202%20%2B%204%20%2B%208%20%2B%20%E2%8B%AF | In mathematics, is the infinite series whose terms are the successive powers of two. As a geometric series, it is characterized by its first term, 1, and its common ratio, 2. As a series of real numbers it diverges to infinity, so the sum of this series is infinity.
However, it can be manipulated to yield a number of... |
https://en.wikipedia.org/wiki/Fluency%20Voice%20Technology | Fluency Voice Technology was a company that developed and sold packaged speech recognition solutions for use in call centers. Fluency's Speech Recognition solutions are used by call centers worldwide to improve customer service and significantly reduce costs and are available on-premises and hosted.
History
1998 – Fl... |
https://en.wikipedia.org/wiki/Fernseh | The Fernseh AG television company was registered in Berlin on July 3, 1929, by John Logie Baird, Robert Bosch, Zeiss Ikon and D.S. Loewe as partners. John Baird owned Baird Television Ltd. in London, Zeiss Ikon was a camera company in Dresden, D.S. Loewe owned a company in Berlin and Robert Bosch owned a company, Rober... |
https://en.wikipedia.org/wiki/Ensemble%20Kalman%20filter | The ensemble Kalman filter (EnKF) is a recursive filter suitable for problems with a large number of variables, such as discretizations of partial differential equations in geophysical models. The EnKF originated as a version of the Kalman filter for large problems (essentially, the covariance matrix is replaced by the... |
https://en.wikipedia.org/wiki/Artin%E2%80%93Rees%20lemma | In mathematics, the Artin–Rees lemma is a basic result about modules over a Noetherian ring, along with results such as the Hilbert basis theorem. It was proved in the 1950s in independent works by the mathematicians Emil Artin and David Rees; a special case was known to Oscar Zariski prior to their work.
An intuitive... |
https://en.wikipedia.org/wiki/XM%20PCR | The XM PCR is a satellite receiver sold by XM Radio and discontinued in 2004, amidst piracy concerns. Programs allowed users to record every song played on an XM channel, quickly and cheaply building an MP3 library.
History
The Personal Computer Receiver (PCR) was first announced in 2003. The next year, XM pulled the... |
https://en.wikipedia.org/wiki/Virtual%20telecine | A virtual telecine is a piece of video equipment that can play back data files in real time. The colorist-video operator controls the virtual telecine like a normal telecine, although without controls like focus and framing. The data files can be from a Spirit DataCine, motion picture film scanner (like a Cineon), CGI ... |
https://en.wikipedia.org/wiki/Ethics%20of%20cloning | In bioethics, the ethics of cloning refers to a variety of ethical positions regarding the practice and possibilities of cloning, especially human cloning. While many of these views are religious in origin, some of the questions raised by cloning are faced by secular perspectives as well. Perspectives on human cloning... |
https://en.wikipedia.org/wiki/VESA%20Enhanced%20Video%20Connector | The VESA Enhanced Video Connector (EVC) is a VESA standard that was intended to reduce the number of cables around a computer by incorporating video, audio, FireWire and USB into a single cable system, terminating in a 35-pin Molex MicroCross connector. The intent was to make the monitor the central point of connection... |
https://en.wikipedia.org/wiki/Bilhete%20%C3%9Anico | Bilhete Único (Unified Ticket) is the name of the São Paulo transportation contactless smart card system for fare control.
Using Philips Mifare technology, the ticketing system is managed by SPTrans (São Paulo Transporte S/A), the city bus transportation authority, which is controlled by the municipal government. Tick... |
https://en.wikipedia.org/wiki/Rudolf%20Luneburg | Rudolf Karl Lüneburg (30 March 1903, Volkersheim (Bockenem) - 19 August 1949, Great Falls, Montana), after his emigration at first Lueneburg, later Luneburg, sometimes misspelled Luneberg or Lunenberg) was a professor of mathematics and optics at the Dartmouth College Eye Institute. He was born in Germany, received his... |
https://en.wikipedia.org/wiki/Swiss%20cheese%20model | The Swiss cheese model of accident causation is a model used in risk analysis and risk management, including aviation safety, engineering, healthcare, emergency service organizations, and as the principle behind layered security, as used in computer security and defense in depth. It likens human systems to multiple sli... |
https://en.wikipedia.org/wiki/Kauffman%20polynomial | In knot theory, the Kauffman polynomial is a 2-variable knot polynomial due to Louis Kauffman. It is initially defined on a link diagram as
,
where is the writhe of the link diagram and is a polynomial in a and z defined on link diagrams by the following properties:
(O is the unknot).
L is unchanged under type I... |
https://en.wikipedia.org/wiki/Mechanical%20screening | Mechanical screening, often just called screening, is the practice of taking granulated or crushed ore material and separating it into multiple grades by particle size.
This practice occurs in a variety of industries such as mining and mineral processing, agriculture, pharmaceutical, food, plastics, and recycling.
A ... |
https://en.wikipedia.org/wiki/Maclaurin%27s%20inequality | In mathematics, Maclaurin's inequality, named after Colin Maclaurin, is a refinement of the inequality of arithmetic and geometric means.
Let a1, a2, ..., an be positive real numbers, and for k = 1, 2, ..., n define the averages Sk as follows:
The numerator of this fraction is the elementary symmetric polynomial of ... |
https://en.wikipedia.org/wiki/Vapor%20quality | In thermodynamics, vapor quality is the mass fraction in a saturated mixture that is vapor; in other words, saturated vapor has a "quality" of 100%, and saturated liquid has a "quality" of 0%. Vapor quality is an intensive property which can be used in conjunction with other independent intensive properties to specify... |
https://en.wikipedia.org/wiki/Software%20repository | A software repository, or repo for short, is a storage location for software packages. Often a table of contents is also stored, along with metadata. A software repository is typically managed by source or version control, or repository managers. Package managers allow automatically installing and updating repositories... |
https://en.wikipedia.org/wiki/Brewing%20Industry%20Research%20Foundation | The Brewing Industry Research Foundation is now part of Campden BRI, a research association serving all sectors of the food and drink industry. The Brewing Division is based next to the M23, and the other Divisions are located in Chipping Campden, Gloucestershire, where about 330 people are employed.
History
Formatio... |
https://en.wikipedia.org/wiki/Frobenius%20matrix | A Frobenius matrix is a special kind of square matrix from numerical mathematics. A matrix is a Frobenius matrix if it has the following three properties:
all entries on the main diagonal are ones
the entries below the main diagonal of at most one column are arbitrary
every other entry is zero
The following matrix ... |
https://en.wikipedia.org/wiki/CDC%201700 | The CDC 1700 was a 16-bit word minicomputer, manufactured by the Control Data Corporation with deliveries beginning in May 1966.
Over the years there were several versions. The original 1700 was constructed using air-cooled CDC 6600-like cordwood logic modules and core memory, although later models used different tec... |
https://en.wikipedia.org/wiki/Cement%20mill | A cement mill (or finish mill in North American usage) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills.
History
Early hydraulic ... |
https://en.wikipedia.org/wiki/Energy%20and%20Utility%20Skills | Energy & Utility Skills is an employer-led membership organization that helps to ensure the gas, power, waste management and water industries have the skills they need - now and in the future.
Function
Through a range of products and services, the organization help employers attract new talent, develop their existing ... |
https://en.wikipedia.org/wiki/Biological%20systems%20engineering | Biological systems engineering or Biosystems engineering is a broad-based engineering discipline with particular emphasis on non-medical biology. It can be thought of as a subset of the broader notion of biological engineering or bio-technology though not in the respects that pertain to biomedical engineering as biosys... |
https://en.wikipedia.org/wiki/Bioprocess%20engineering | Bioprocess engineering, also biochemical engineering, is a specialization of chemical engineering or biological engineering. It deals with the design and development of equipment and processes for the manufacturing of products such as agriculture, food, feed, pharmaceuticals, nutraceuticals, chemicals, and polymers an... |
https://en.wikipedia.org/wiki/Segment%20descriptor | In memory addressing for Intel x86 computer architectures, segment descriptors are a part of the segmentation unit, used for translating a logical address to a linear address. Segment descriptors describe the memory segment referred to in the logical address.
The segment descriptor (8 bytes long in 80286 and later) con... |
https://en.wikipedia.org/wiki/Dade-Collier%20Training%20and%20Transition%20Airport | Dade-Collier Training and Transition Airport is a public airport located within the Florida Everglades, 36 miles (58 km) west of the central business district of Miami, in Collier County, Florida, United States. It is owned by Miami-Dade County and operated by the Miami-Dade Aviation Department. The airport is on the ... |
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