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https://en.wikipedia.org/wiki/RCA%20clean | The RCA clean is a standard set of wafer cleaning steps which need to be performed before high-temperature processing steps (oxidation, diffusion, CVD) of silicon wafers in semiconductor manufacturing.
Werner Kern developed the basic procedure in 1965 while working for RCA, the Radio Corporation of America. It involve... |
https://en.wikipedia.org/wiki/Knockdown%20texture | Knockdown texture is a drywall finishing style. It is a mottled texture, more intense than a simple flat finish, but less intense than orange peel, or popcorn, texture.
Knockdown texture is created by watering down joint compound to a soupy consistency. A trowel is then used to apply the joint compound. The joint c... |
https://en.wikipedia.org/wiki/Fibre%20multi-object%20spectrograph | Fibre multi-object spectrograph (FMOS) is facility instrument for the Subaru telescope on Mauna Kea in Hawaii. The instrument consists of a complex fibre-optic positioning system mounted at the prime focus of the telescope. Fibres are then fed to a pair of large spectrographs, each weighing nearly 3000 kg. The instrume... |
https://en.wikipedia.org/wiki/Commutation%20matrix | In mathematics, especially in linear algebra and matrix theory, the commutation matrix is used for transforming the vectorized form of a matrix into the vectorized form of its transpose. Specifically, the commutation matrix K(m,n) is the nm × mn matrix which, for any m × n matrix A, transforms vec(A) into vec(AT):
K(m,... |
https://en.wikipedia.org/wiki/Owney%20%28dog%29 | Owney (ca. 1887 – June 11, 1897), was a terrier mix adopted in the United States as a postal mascot by the Albany, New York, post office about 1888. The Albany mail professionals recommended the dog to their Railway Mail Service colleagues, and he became a nationwide mascot for nine years (1888–1897). He traveled over ... |
https://en.wikipedia.org/wiki/Fondements%20de%20la%20G%C3%A9ometrie%20Alg%C3%A9brique | Fondements de la Géometrie Algébrique (FGA) is a book that collected together seminar notes of Alexander Grothendieck. It is an
important source for his pioneering work on scheme theory, which laid foundations for algebraic geometry in its modern technical developments.
The title is a translation of the title of Andr... |
https://en.wikipedia.org/wiki/Randomized%20response | Randomised response is a research method used in structured survey interview. It was first proposed by S. L. Warner in 1965 and later modified by B. G. Greenberg and coauthors in 1969. It allows respondents to respond to sensitive issues (such as criminal behavior or sexuality) while maintaining confidentiality. Chance... |
https://en.wikipedia.org/wiki/CB%20UNIX | Columbus UNIX, or CB UNIX, is a discontinued variant of the UNIX operating system used internally at Bell Labs for administrative databases and transaction processing. It was developed at the Columbus, Ohio branch, based on V6, V7 and PWB Unix. It was little-known outside the company.
CB UNIX was developed to address ... |
https://en.wikipedia.org/wiki/Duplication%20and%20elimination%20matrices | In mathematics, especially in linear algebra and matrix theory, the duplication matrix and the elimination matrix are linear transformations used for transforming half-vectorizations of matrices into vectorizations or (respectively) vice versa.
Duplication matrix
The duplication matrix is the unique matrix which, fo... |
https://en.wikipedia.org/wiki/Vectorization%20%28mathematics%29 | In mathematics, especially in linear algebra and matrix theory, the vectorization of a matrix is a linear transformation which converts the matrix into a vector. Specifically, the vectorization of a matrix A, denoted vec(A), is the column vector obtained by stacking the columns of the matrix A on top of one another:
... |
https://en.wikipedia.org/wiki/Cortactin | Cortactin (from "cortical actin binding protein") is a monomeric protein located in the cytoplasm of cells that can be activated by external stimuli to promote polymerization and rearrangement of the actin cytoskeleton, especially the actin cortex around the cellular periphery. It is present in all cell types. When act... |
https://en.wikipedia.org/wiki/Digital%20timing%20diagram | A digital timing diagram represents a set of signals in the time domain. A timing diagram can contain many rows, usually one of them being the clock. It is a tool commonly used in digital electronics, hardware debugging, and digital communications. Besides providing an overall description of the timing relationships, t... |
https://en.wikipedia.org/wiki/List%20of%20nursing%20journals | This is a list of notable academic journals about nursing.
AACN Advanced Critical Care
AACN Nursing Scan in Critical Care
Advances in Neonatal Care
American Journal of Critical Care
American Journal of Nursing
Australian Critical Care
AORN Journal
Australasian Emergency Nursing Journal
BMC Nursing
British Journal of C... |
https://en.wikipedia.org/wiki/Nitrifying%20bacteria | Nitrifying bacteria are chemolithotrophic organisms that include species of genera such as Nitrosomonas, Nitrosococcus, Nitrobacter, Nitrospina, Nitrospira and Nitrococcus. These bacteria get their energy from the oxidation of inorganic nitrogen compounds. Types include ammonia-oxidizing bacteria (AOB) and nitrite-oxid... |
https://en.wikipedia.org/wiki/Decline%20and%20Fall%20of%20the%20American%20Programmer | Decline and Fall of the American Programmer is a book written by Edward Yourdon in 1992. It was addressed to American programmers and software organizations of the 1990s, warning that they were about to be driven out of business by programmers in other countries who could produce software more cheaply and with higher q... |
https://en.wikipedia.org/wiki/Overselling | Overselling or overbooking is sale of a volatile good or service in excess of actual supply. Overselling is a common practice in the travel and hospitality sectors, in which it is expected that some people will cancel. The practice occurs as an intentional business strategy in which sellers expect that some buyers will... |
https://en.wikipedia.org/wiki/Generic%20Eclipse%20Modeling%20System | Generic Eclipse Modeling System (GEMS) is a configurable toolkit for creating domain-specific modeling and program synthesis environments for Eclipse. The project aims to bridge the gap between the communities experienced with visual metamodeling tools like those built around the Eclipse modeling technologies, such as ... |
https://en.wikipedia.org/wiki/PowerVu | PowerVu is a conditional access system for digital television developed by Scientific Atlanta. It is used for professional broadcasting, notably by Retevision, Bloomberg Television, Discovery Channel, AFRTS, ABS-CBN, GMA Network, and American Forces Network. It is also used by cable companies to prevent viewing by unau... |
https://en.wikipedia.org/wiki/Antiparasitic | Antiparasitics are a class of medications which are indicated for the treatment of parasitic diseases, such as those caused by helminths, amoeba, ectoparasites, parasitic fungi, and protozoa, among others. Antiparasitics target the parasitic agents of the infections by destroying them or inhibiting their growth; they a... |
https://en.wikipedia.org/wiki/Treble%20booster | A treble booster is an effects unit used by guitarists to increase the high end of their tonal spectrum. Many units boost the overall volume as well. Treble boosters were commonly used by guitarists in the 1960s and 1970s. During the last couple of decades, their popularity has increased again and many clones and reiss... |
https://en.wikipedia.org/wiki/Stepped%20nozzle | A stepped nozzle (or dual-bell nozzle) is a de Laval rocket nozzle which has altitude compensating properties.
The characteristic of this kind of nozzle is that part of the way along the inside of the nozzle there is a straightening of the curve of the nozzle contour, followed by a sharp step outwards.
At low altitud... |
https://en.wikipedia.org/wiki/Glaze%20defects | Glaze defects are any flaws in the surface quality of a ceramic glaze, its physical structure or its interaction with the body.
Body/glaze interaction problems
Glaze defects can be as a result of the incompatibility of the body and the selected glaze. Examples including Crazing and Peeling.
Crazing
Crazing is a spide... |
https://en.wikipedia.org/wiki/Hanaro%20Card | Hanaro Card is contactless smart card used in the public transportation system in Busan, South Korea. First used in 1997, the Hanaro Card is now also used for paying at parking lots and toll booths.
The Hanaro system was adopted by Busan City in February 1998. This created the first integrated transport smart payment... |
https://en.wikipedia.org/wiki/Absolutely%20integrable%20function | In mathematics, an absolutely integrable function is a function whose absolute value is integrable, meaning that the integral of the absolute value over the whole domain is finite.
For a real-valued function, since
where
both and must be finite. In Lebesgue integration, this is exactly the requirement for any meas... |
https://en.wikipedia.org/wiki/Aspherical%20space | In topology, a branch of mathematics, an aspherical space is a topological space with all homotopy groups equal to 0 when .
If one works with CW complexes, one can reformulate this condition: an aspherical CW complex is a CW complex whose universal cover is contractible. Indeed, contractibility of a universal cover i... |
https://en.wikipedia.org/wiki/S%C3%ADragon | Síragon, C.A. is a Venezuelan manufacturer and assembler of computer hardware and other electronic products such as digital cameras, tablet, computers and LCD televisions. Siragon also designs and manufactures its own RAM and flash memory and printed circuit boards. The company was created in an alliance between Venezu... |
https://en.wikipedia.org/wiki/UN%20M49 | UN M49 or the Standard Country or Area Codes for Statistical Use (Series M, No. 49) is a standard for area codes used by the United Nations for statistical purposes, developed and maintained by the United Nations Statistics Division. Each area code is a 3-digit number which can refer to a wide variety of geographical a... |
https://en.wikipedia.org/wiki/Differential%20calculus%20over%20commutative%20algebras | In mathematics the differential calculus over commutative algebras is a part of commutative algebra based on the observation that most concepts known from classical differential calculus can be formulated in purely algebraic terms. Instances of this are:
The whole topological information of a smooth manifold is encod... |
https://en.wikipedia.org/wiki/Factorization%20system | In mathematics, it can be shown that every function can be written as the composite of a surjective function followed by an injective function. Factorization systems are a generalization of this situation in category theory.
Definition
A factorization system (E, M) for a category C consists of two classes of morphism... |
https://en.wikipedia.org/wiki/Grant%20Achatz | Grant Achatz ( ) (born April 25, 1974) is an American chef and restaurateur often recognized for his contributions to molecular gastronomy or progressive cuisine. His Chicago restaurant Alinea has won numerous accolades and Achatz himself has won numerous awards from prominent culinary institutions and publications, in... |
https://en.wikipedia.org/wiki/Regular%20dodecahedron | A regular dodecahedron or pentagonal dodecahedron is a dodecahedron that is regular, which is composed of 12 regular pentagonal faces, three meeting at each vertex. It is one of the five Platonic solids. It has 12 faces, 20 vertices, 30 edges, and 160 diagonals (60 face diagonals, 100 space diagonals). It is represent... |
https://en.wikipedia.org/wiki/Centro%20de%20Investigaci%C3%B3n%20de%20M%C3%A9todos%20Computacionales | Centro de Investigación de Métodos Computacionales (CIMEC, Research Center for Computational Methods) is a research institute located at Predio CONICET Santa Fe Santa Fe, Argentina.
It depends on the Universidad Nacional del Litoral, and on the National Scientific and Technical Research Council (CONICET). The main are... |
https://en.wikipedia.org/wiki/Generalized%20dihedral%20group | In mathematics, the generalized dihedral groups are a family of groups with algebraic structures similar to that of the dihedral groups. They include the finite dihedral groups, the infinite dihedral group, and the orthogonal group O(2). Dihedral groups play an important role in group theory, geometry, and chemistry.
... |
https://en.wikipedia.org/wiki/Martianoids | Martianoids is a ZX Spectrum video game developed by Ultimate Play the Game and released in 1987.
Gameplay
Although it uses isometric projection, as with Ultimate's second-generation isometric releases such as Nightshade and Gunfright, Martianoids used a scrolling display rather than the flip-screen of earlier titles ... |
https://en.wikipedia.org/wiki/Hydrophilic%20interaction%20chromatography | Hydrophilic interaction chromatography (or hydrophilic interaction liquid chromatography, HILIC) is a variant of normal phase liquid chromatography that partly overlaps with other chromatographic applications such as ion chromatography and reversed phase liquid chromatography. HILIC uses hydrophilic stationary phases... |
https://en.wikipedia.org/wiki/KXLK-CD | KXLK-CD (channel 40) is a low-power, Class A television station in Austin, Texas, United States. It is owned by TelevisaUnivision alongside Killeen-licensed Univision owned-and-operated station KAKW-DT (channel 62). KXLK-CD's transmitter is located at the West Austin Antenna Farm north of West Lake Hills.
History
The ... |
https://en.wikipedia.org/wiki/Space-oblique%20Mercator%20projection | Space-oblique Mercator projection is a map projection devised in the 1970s for preparing maps from Earth-survey satellite data. It is a generalization of the oblique Mercator projection that incorporates the time evolution of a given satellite ground track to optimize its representation on the map. The oblique Mercator... |
https://en.wikipedia.org/wiki/Parser%20Grammar%20Engine | The Parser Grammar Engine (PGE, originally the Parrot Grammar Engine) is a compiler and runtime for Raku rules for the Parrot virtual machine. PGE uses these rules to convert a parsing expression grammar into Parrot bytecode. It is therefore compiling rules into a program, unlike most virtual machines and runtimes, whi... |
https://en.wikipedia.org/wiki/Addison-Wesley%20Secondary%20Math%3A%20An%20Integrated%20Approach%3A%20Focus%20on%20Algebra | Focus on Algebra was the widely cited 812-page-long algebra textbook which contained significant content outside the traditional field of mathematics. The real-life context, intended to make mathematics more relevant, included chili recipes, ancient myths, and photographs of famous people.
Although it was a widely use... |
https://en.wikipedia.org/wiki/Congenic | In genetics, two organisms that differ in only one locus and a linked segment of chromosome are defined as congenic. Similarly, organisms that are coisogenic differ in one locus only and not in the surrounding chromosome. Unlike congenic organisms, coisogenic organisms cannot be bred and only occur through spontaneous ... |
https://en.wikipedia.org/wiki/Quasicontraction%20semigroup | In mathematical analysis, a C0-semigroup Γ(t), t ≥ 0, is called a quasicontraction semigroup if there is a constant ω such that ||Γ(t)|| ≤ exp(ωt) for all t ≥ 0. Γ(t) is called a contraction semigroup if ||Γ(t)|| ≤ 1 for all t ≥ 0.
See also
Contraction (operator theory)
Hille–Yosida theorem
Lumer–Phillips theorem
... |
https://en.wikipedia.org/wiki/Skewness%20risk | Skewness risk in financial modeling is the risk that results when observations are not spread symmetrically around an average value, but instead have a skewed distribution. As a result, the mean and the median can be different. Skewness risk can arise in any quantitative model that assumes a symmetric distribution (s... |
https://en.wikipedia.org/wiki/Default%20password | Where a device needs a username and/or password to log in, a default password is usually provided to access the device during its initial setup, or after resetting to factory defaults.
Manufacturers of such equipment typically use a simple password, such as admin or password on all equipment they ship, expecting users... |
https://en.wikipedia.org/wiki/Streaking%20%28microbiology%29 | In microbiology, streaking is a technique used to isolate a pure strain from a single species of microorganism, often bacteria. Samples can then be taken from the resulting colonies and a microbiological culture can be grown on a new plate so that the organism can be identified, studied, or tested.
The modern streak p... |
https://en.wikipedia.org/wiki/Patch%20point | In electronic audio technology, a patch point is a connection that allows a signal to be withdrawn from a device, modified in some way, and returned. This can, for example, be done using a phone connector, using the tip of the plug for the outgoing mono signal, and the ring for the returning signal, a configuration kn... |
https://en.wikipedia.org/wiki/American%20Photonics | American Photonics, Inc. (API) was a very early developer of local area network technologies in the 1980s, based first in Brewster, New York, moving later to Brookfield Center, Connecticut.
History
American Photonics, Inc., was founded in 1982 by James Walyus (1938–2000) while he was employed by Exxon Optical Informat... |
https://en.wikipedia.org/wiki/Teleavia | Teleavia was a French manufacturer of televisions in the mid-20th century, it was created by aviation company "Sud Aviation" as a diversification operation to employ redundant workforce. It was later absorbed by Thomson SA.
The brand was best known for the innovative television set designs created by the French design... |
https://en.wikipedia.org/wiki/Web%20Services%20Distributed%20Management | Web Services Distributed Management (WSDM, pronounced wisdom) is a web service standard for managing and monitoring the status of other services.
The goal of WSDM is to allow a well-defined network protocol for controlling any other service that is WSDM-compliant. For example, a third-party digital dashboard or netwo... |
https://en.wikipedia.org/wiki/Matita | Matita
is an experimental proof assistant under development at the Computer Science Department of the University of Bologna. It is a tool aiding the development of formal proofs by man-machine collaboration, providing a programming environment where formal specifications, executable algorithms and automatically verifia... |
https://en.wikipedia.org/wiki/Filesystem-level%20encryption | Filesystem-level encryption, often called file-based encryption, FBE, or file/folder encryption, is a form of disk encryption where individual files or directories are encrypted by the file system itself.
This is in contrast to the full disk encryption where the entire partition or disk, in which the file system resid... |
https://en.wikipedia.org/wiki/List%20of%20cryptographic%20file%20systems | This is a list of filesystems with support for filesystem-level encryption. Not to be confused with full-disk encryption.
General-purpose filesystems with encryption
AdvFS on Digital Tru64 UNIX
Novell Storage Services on Novell NetWare and Linux
NTFS with Encrypting File System (EFS) for Microsoft Windows
ZFS sinc... |
https://en.wikipedia.org/wiki/System-specific%20impulse | The term System-specific Impulse, Issp is a measure that describes performance of jet propulsion systems. A reference number is introduced, which defines the total impulse, Itot, delivered by the system, divided by the system mass, mPS:
Issp=Itot/mPS
Because of the resulting dimension, - delivered impulse per kilogra... |
https://en.wikipedia.org/wiki/Stellar%20triangulation | Stellar triangulation is a method of geodesy and of its subdiscipline space geodesy used to measure Earth's geometric shape. Stars were first used for this purpose by the Finnish astronomer Yrjö Väisälä in 1959, who made astrometric photographs of the night sky at two stations together with a lighted balloon probe betw... |
https://en.wikipedia.org/wiki/Society%20for%20Imaging%20Science%20and%20Technology | The Society for Imaging Science and Technology (IS&T) is a professional society (a type of research and education organization) in the field of photography. Founded in 1947 as the Society of Photographic Scientists and Engineers (SPSE), it is headquartered in Springfield, Virginia. In 2018 it had about 850 members worl... |
https://en.wikipedia.org/wiki/ProDigi | Mitsubishi's ProDigi was a professional audio, reel-to-reel, digital audio tape format with a stationary head position, similar to Sony's Digital Audio Stationary Head, which competed against ProDigi when the format was available in the mid-1980s through the early 1990s. Audio was digitally recorded linearly on the tap... |
https://en.wikipedia.org/wiki/Communications%20server | Communications servers are open, standards-based computing systems that operate as a carrier-grade common platform for a wide range of communications applications and allow equipment providers to add value at many levels of the system architecture.
Based on industry-managed standards such as AdvancedTCA, MicroTCA, Car... |
https://en.wikipedia.org/wiki/NextWave%20Wireless | NextWave Wireless Inc. is a wireless technology company that produces mobile multimedia solutions and speculates in the wireless spectrum market. The company consists principally of various wireless spectrum holdings.
The company is most notable for successfully suing the U.S. government for improperly seizing its as... |
https://en.wikipedia.org/wiki/Global%20Area%20Reference%20System | The Global Area Reference System (GARS) is a standardized geospatial reference system developed by the National Geospatial-Intelligence Agency (NGA) for use across the United States Department of Defense. Under the Chairman of the Joint Chiefs of Staff Instruction CJCSI 3900.01C dated 30 June 2007, GARS was adopted for... |
https://en.wikipedia.org/wiki/Exponential-Golomb%20coding | An exponential-Golomb code (or just Exp-Golomb code) is a type of universal code. To encode any nonnegative integer x using the exp-Golomb code:
Write down x+1 in binary
Count the bits written, subtract one, and write that number of starting zero bits preceding the previous bit string.
The first few values of the ... |
https://en.wikipedia.org/wiki/Krogh%27s%20principle | Krogh's principle states that "for such a large number of problems there will be some animal of choice, or a few such animals, on which it can be most conveniently studied." This concept is central to those disciplines of biology that rely on the comparative method, such as neuroethology, comparative physiology, and mo... |
https://en.wikipedia.org/wiki/Autosomal%20dominant%20nocturnal%20frontal%20lobe%20epilepsy | Autosomal dominant nocturnal frontal lobe epilepsy is an epileptic disorder that causes frequent violent seizures during sleep. These seizures often involve complex motor movements, such as hand clenching, arm raising/lowering, and knee bending. Vocalizations such as shouting, moaning, or crying are also common. ADNFLE... |
https://en.wikipedia.org/wiki/Thermophoresis | Thermophoresis (also thermomigration, thermodiffusion, the Soret effect, or the Ludwig–Soret effect) is a phenomenon observed in mixtures of mobile particles where the different particle types exhibit different responses to the force of a temperature gradient. This phenomenon tends to move light molecules to hot region... |
https://en.wikipedia.org/wiki/Single-ended%20primary-inductor%20converter | The single-ended primary-inductor converter (SEPIC) is a type of DC/DC converter that allows the electrical potential (voltage) at its output to be greater than, less than, or equal to that at its input. The output of the SEPIC is controlled by the duty cycle of the control switch (S1).
A SEPIC is essentially a boost ... |
https://en.wikipedia.org/wiki/Ecophysiology | Ecophysiology (from Greek , oikos, "house(hold)"; , physis, "nature, origin"; and , -logia), environmental physiology or physiological ecology is a biological discipline that studies the response of an organism's physiology to environmental conditions. It is closely related to comparative physiology and evolutionary p... |
https://en.wikipedia.org/wiki/Connected-component%20labeling | Connected-component labeling (CCL), connected-component analysis (CCA), blob extraction, region labeling, blob discovery, or region extraction is an algorithmic application of graph theory, where subsets of connected components are uniquely labeled based on a given heuristic. Connected-component labeling is not to be c... |
https://en.wikipedia.org/wiki/Weak%20symbol | A weak symbol denotes a specially annotated symbol during linking of Executable and Linkable Format (ELF) object files. By default, without any annotation, a symbol in an object file is strong. During linking, a strong symbol can override a weak symbol of the same name. In contrast, in the presence of two strong symbo... |
https://en.wikipedia.org/wiki/WS-CAF | Web Services Composite Application Framework (WS-CAF) is an open framework developed by OASIS. Its purpose is to define a generic and open framework for applications that contain multiple services used together, which are sometimes referred to as composite applications. WS-CAF characteristics include interoperability, ... |
https://en.wikipedia.org/wiki/Side%20population | A side population (SP) in flow cytometry is a sub-population of cells that is distinct from the main population on the basis of the markers employed. By definition, cells in a side population have distinguishing biological characteristics (for example, they may exhibit stem cell-like characteristics), but the exact nat... |
https://en.wikipedia.org/wiki/American%20Welding%20Society | The American Welding Society (AWS) was founded in 1919 as a non-profit organization to advance the science, technology and application of welding and allied joining and cutting processes, including brazing, soldering and thermal spraying.
Headquartered in Doral, Florida, and led by a volunteer organization of officers... |
https://en.wikipedia.org/wiki/Unity%20amplitude | A sinusoidal waveform is said to have a unity amplitude when the amplitude of the wave is equal to 1.
where . This terminology is most commonly used in digital signal processing and is usually associated with the Fourier series and Fourier Transform sinusoids that involve a duty cycle, , and a defined fundamental peri... |
https://en.wikipedia.org/wiki/Nonequilibrium%20Gas%20and%20Plasma%20Dynamics%20Laboratory | The Nonequilibrium Gas and Plasma Dynamics Laboratory (NGPDL) at the Aerospace Engineering Department of the University of Colorado Boulder is headed by Professor Iain D. Boyd and performs research of nonequilibrium gases and plasmas involving the development of physical models for various gas systems of interest, nume... |
https://en.wikipedia.org/wiki/Per%20Enflo | Per H. Enflo (; born 20 May 1944) is a Swedish mathematician working primarily in functional analysis, a field in which he solved problems that had been considered fundamental. Three of these problems had been open for more than forty years:
The basis problem and the approximation problem and later
the invariant subs... |
https://en.wikipedia.org/wiki/AACE%20International | AACE International (Association for the Advancement of Cost Engineering) was founded in 1956 by 59 cost estimators and cost engineers during the organizational meeting of the American Association of Cost Engineering at the University of New Hampshire in Durham, New Hampshire. AACE International Headquarters is located... |
https://en.wikipedia.org/wiki/Primary%20pseudoperfect%20number | In mathematics, and particularly in number theory, N is a primary pseudoperfect number if it satisfies the Egyptian fraction equation
where the sum is over only the prime divisors of N.
Properties
Equivalently, N is a primary pseudoperfect number if it satisfies
Except for the primary pseudoperfect number N = 2, th... |
https://en.wikipedia.org/wiki/Cahen%27s%20constant | In mathematics, Cahen's constant is defined as the value of an infinite series of unit fractions with alternating signs:
Here denotes Sylvester's sequence, which is defined recursively by
Combining these fractions in pairs leads to an alternative expansion of Cahen's constant as a series of positive unit fractions... |
https://en.wikipedia.org/wiki/Random%20dynamical%20system | In the mathematical field of dynamical systems, a random dynamical system is a dynamical system in which the equations of motion have an element of randomness to them. Random dynamical systems are characterized by a state space S, a set of maps from S into itself that can be thought of as the set of all possible equat... |
https://en.wikipedia.org/wiki/Extended%20precision | Extended precision refers to floating-point number formats that provide greater precision than the basic floating-point formats. Extended precision formats support a basic format by minimizing roundoff and overflow errors in intermediate values of expressions on the base format. In contrast to extended precision, arbi... |
https://en.wikipedia.org/wiki/Facet%20%28geometry%29 | In geometry, a facet is a feature of a polyhedron, polytope, or related geometric structure, generally of dimension one less than the structure itself. More specifically:
In three-dimensional geometry, a facet of a polyhedron is any polygon whose corners are vertices of the polyhedron, and is not a face. To facet a po... |
https://en.wikipedia.org/wiki/IUP%20%28software%29 | The IUP Portable User Interface is a computer software development kit that provides a portable, scriptable toolkit to build graphical user interfaces (GUIs) using the programming languages C, Perl, Lua, Nim and Zig, among others. This allows rapid, zero-compile prototyping and refinement of deployable GUI applications... |
https://en.wikipedia.org/wiki/Immortal%20DNA%20strand%20hypothesis | The immortal DNA strand hypothesis was proposed in 1975 by John Cairns as a mechanism for adult stem cells to minimize mutations in their genomes. This hypothesis proposes that instead of segregating their DNA during mitosis in a random manner, adult stem cells divide their DNA asymmetrically, and retain a distinct tem... |
https://en.wikipedia.org/wiki/Tacit%20collusion | Tacit collusion is a collusion between competitors, which do not explicitly exchange information and achieving an agreement about coordination of conduct. There are two types of tacit collusion – concerted action and conscious parallelism. In a concerted action also known as concerted activity, competitors exchange som... |
https://en.wikipedia.org/wiki/Chipcom | Chipcom was an early pioneering company in the Ethernet hub industry. Their products allowed Local Networks to be aggregated in a single place instead of being distributed across the length of a single coaxial cable. They competed with now-gone companies such as Cabletron Systems, SynOptics, Ungermann-Bass, David Syst... |
https://en.wikipedia.org/wiki/Optimal%20stopping | In mathematics, the theory of optimal stopping or early stopping is concerned with the problem of choosing a time to take a particular action, in order to maximise an expected reward or minimise an expected cost. Optimal stopping problems can be found in areas of statistics, economics, and mathematical finance (related... |
https://en.wikipedia.org/wiki/Dailymotion | Dailymotion is a French video-sharing technology platform owned by Vivendi. North American launch partners included Vice Media, Bloomberg and Hearst Digital Media. It is among the earliest known platforms to support HD (720p) resolution video. Dailymotion is available worldwide in 183 languages and 43 localised version... |
https://en.wikipedia.org/wiki/Sandy%20Bridge | Sandy Bridge is the codename for Intel's 32 nm microarchitecture used in the second generation of the Intel Core processors (Core i7, i5, i3). The Sandy Bridge microarchitecture is the successor to Nehalem and Westmere microarchitecture. Intel demonstrated a Sandy Bridge processor in 2009, and released first products b... |
https://en.wikipedia.org/wiki/PPS.tv | PPS.tv (PPStream) is a Chinese peer-to-peer streaming video network software. Since the target users are on the Chinese mainland, there is no official English version, and the vast majority of channels are from East Asia, mostly Mainland China, Japan, South Korea, Hong Kong, Taiwan, Malaysia, and Singapore. Programmes ... |
https://en.wikipedia.org/wiki/Verdier%20duality | In mathematics, Verdier duality is a cohomological duality in algebraic topology that generalizes Poincaré duality for manifolds. Verdier duality was introduced in 1965 by as an analog for locally compact topological spaces of
Alexander Grothendieck's theory of
Poincaré duality in étale cohomology
for schemes in alge... |
https://en.wikipedia.org/wiki/Casing%20shoe | In oil drilling and borehole mining, a casing shoe or guide shoe is a bull-nose shaped device which is attached to the bottom of the casing string. A casing hanger, which allows the casing to be suspended from the wellhead, is attached to the top of the casing.
References
Drilling technology |
https://en.wikipedia.org/wiki/Intel%20Paragon | The Intel Paragon is a discontinued series of massively parallel supercomputers that was produced by Intel in the 1990s. The Paragon XP/S is a productized version of the experimental Touchstone Delta system that was built at Caltech, launched in 1992. The Paragon superseded Intel's earlier iPSC/860 system, to which it ... |
https://en.wikipedia.org/wiki/Warped%20linear%20predictive%20coding | Warped linear predictive coding (warped LPC or WLPC) is a variant of linear predictive coding in which the spectral representation of the system is modified, for example by replacing the unit delays used in an LPC implementation with first-order all-pass filters. This can have advantages in reducing the bitrate require... |
https://en.wikipedia.org/wiki/2006%20World%20Solar%20Rally%20in%20Taiwan | The 2006 World Solar Rally in Taiwan was a solar vehicle auto race held in September 2006 in Taiwan. Ten teams from five countries, most university-based, competed in a series of races around the island for the trophy.
Race
The race was preceded by a parade on September 16 through the city of Kaohsiung, followed by a ... |
https://en.wikipedia.org/wiki/Driven%20right%20leg%20circuit | A Driven Right Leg circuit or DRL circuit, also known as Right Leg Driving technique, is an electric circuit that is often added to biological signal amplifiers to reduce common-mode interference. Biological signal amplifiers such as ECG (electrocardiogram) EEG (electroencephalogram) or EMG circuits measure very small ... |
https://en.wikipedia.org/wiki/Lowest%20common%20ancestor | In graph theory and computer science, the lowest common ancestor (LCA) (also called least common ancestor) of two nodes and in a tree or directed acyclic graph (DAG) is the lowest (i.e. deepest) node that has both and as descendants, where we define each node to be a descendant of itself (so if has a direct conn... |
https://en.wikipedia.org/wiki/Functionally%20graded%20material | In materials science Functionally Graded Materials (FGMs) may be characterized by the variation in composition and structure gradually over volume, resulting in corresponding changes in the properties of the material. The materials can be designed for specific function and applications. Various approaches based on the ... |
https://en.wikipedia.org/wiki/International%20Congress%20of%20Actuaries | The International Congress of Actuaries (ICA) is a conference held under the auspices of the International Actuarial Association every four years. The most recent conference was the 31st Congress, held in Berlin, Germany from 4 to 8 June 2018. The 33rd Congress will be held in Sydney, Australia in 2023 and the 34th in... |
https://en.wikipedia.org/wiki/Monoclonal%20antibody%20therapy | Monoclonal antibody therapy is a form of immunotherapy that uses monoclonal antibodies (mAbs) to bind monospecifically to certain cells or proteins. The objective is that this treatment will stimulate the patient's immune system to attack those cells. Alternatively, in radioimmunotherapy a radioactive dose localizes a ... |
https://en.wikipedia.org/wiki/Circuit%20ID | A circuit ID is a company-specific identifier assigned to a data or voice network connection between two locations. This connection, often called a circuit, may then be leased to a customer referring to that ID. In this way, the circuit ID is similar to a serial number on any product sold from a retailer to a customer... |
https://en.wikipedia.org/wiki/Biochemistry%20of%20Alzheimer%27s%20disease | The biochemistry of Alzheimer's disease, the most common cause of dementia, is not yet very well understood. Alzheimer's disease (AD) has been identified as a proteopathy: a protein misfolding disease due to the accumulation of abnormally folded amyloid beta (Aβ) protein in the brain. Amyloid beta is a short peptide th... |
https://en.wikipedia.org/wiki/Harmonic%20coordinate%20condition | The harmonic coordinate condition is one of several coordinate conditions in general relativity, which make it possible to solve the Einstein field equations. A coordinate system is said to satisfy the harmonic coordinate condition if each of the coordinate functions xα (regarded as scalar fields) satisfies d'Alembert'... |
https://en.wikipedia.org/wiki/D%27Alembert%27s%20equation | In mathematics, d'Alembert's equation is a first order nonlinear ordinary differential equation, named after the French mathematician Jean le Rond d'Alembert. The equation reads as
where . After differentiating once, and rearranging we have
The above equation is linear. When , d'Alembert's equation is reduced to Clai... |
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