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https://en.wikipedia.org/wiki/Linphone |
Linphone (contraction of Linux phone) is a free voice over IP softphone, SIP client and service. It may be used for audio and video direct calls and calls through any VoIP softswitch or IP-PBX. Linphone also provides the possibility to exchange instant messages. It has a simple multilanguage interface based on Qt for ... |
https://en.wikipedia.org/wiki/Seismic%20migration | Seismic migration is the process by which seismic events are geometrically re-located in either space or time to the location the event occurred in the subsurface rather than the location that it was recorded at the surface, thereby creating a more accurate image of the subsurface. This process is necessary to overcome... |
https://en.wikipedia.org/wiki/Euler%20tour%20technique | The Euler tour technique (ETT), named after Leonhard Euler, is a method in graph theory for representing trees. The tree is viewed as a directed graph that contains two directed edges for each edge in the tree. The tree can then be represented as a Eulerian circuit of the directed graph, known as the Euler tour repre... |
https://en.wikipedia.org/wiki/Shannon%20capacity%20of%20a%20graph | In graph theory, the Shannon capacity of a graph is a graph invariant defined from the number of independent sets of strong graph products. It is named after American mathematician Claude Shannon. It measures the Shannon capacity of a communications channel defined from the graph, and is upper bounded by the Lovász num... |
https://en.wikipedia.org/wiki/WD%20Anywhere%20Access | WD Anywhere Access (also known as WD Anywhere Access Powered by MioNet and MioNet) was a remote-access product offered by Western Digital from 2007 to 2016. MioNet was originally a product of Palo Alto–based Senvid. Western Digital purchased the assets of Senvid in 2007.
Overview
The product was composed of a server ... |
https://en.wikipedia.org/wiki/Noncommutative%20algebraic%20geometry | Noncommutative algebraic geometry is a branch of mathematics, and more specifically a direction in noncommutative geometry, that studies the geometric properties of formal duals of non-commutative algebraic objects such as rings as well as geometric objects derived from them (e.g. by gluing along localizations or takin... |
https://en.wikipedia.org/wiki/Acetogen | An acetogen is a microorganism that generates acetate (CH3COO−) as an end product of anaerobic respiration or fermentation. However, this term is usually employed in a narrower sense only to those bacteria and archaea that perform anaerobic respiration and carbon fixation simultaneously through the reductive acetyl coe... |
https://en.wikipedia.org/wiki/Missing%20energy | In experimental particle physics, missing energy refers to energy that is not detected in a particle detector, but is expected due to the laws of conservation of energy and conservation of momentum. Missing energy is carried by particles that do not interact with the electromagnetic or strong forces and thus are not ea... |
https://en.wikipedia.org/wiki/Plant%20Pathology%20%28journal%29 | Plant Pathology is a peer-reviewed scientific journal published by Wiley-Blackwell in association with the British Society for Plant Pathology. It was established in 1952 and was originally published by the Ministry of Agriculture. The journal publishes research articles and critical reviews on all aspects of plant pat... |
https://en.wikipedia.org/wiki/Boltzmann%20machine | A Boltzmann machine (also called Sherrington–Kirkpatrick model with external field or stochastic Ising–Lenz–Little model) is a stochastic spin-glass model with an external field, i.e., a Sherrington–Kirkpatrick model, that is a stochastic Ising model. It is a statistical physics technique applied in the context of cogn... |
https://en.wikipedia.org/wiki/Byte%20Information%20Exchange | BYTE Information eXchange (BIX) was an online service created by BYTE.
History
BYTE in the October 1984 issue announced BYTEnet, "a project in computer conferencing", with 200 beta testers who received free service during the "experiment". The magazine formally announced BIX in the June 1985 issue, offering an introdu... |
https://en.wikipedia.org/wiki/3D%20projection | A 3D projection (or graphical projection) is a design technique used to display a three-dimensional (3D) object on a two-dimensional (2D) surface. These projections rely on visual perspective and aspect analysis to project a complex object for viewing capability on a simpler plane.
3D projections use the primary quali... |
https://en.wikipedia.org/wiki/Neural%20style%20transfer | Neural style transfer (NST) refers to a class of software algorithms that manipulate digital images, or videos, in order to adopt the appearance or visual style of another image. NST algorithms are characterized by their use of deep neural networks for the sake of image transformation. Common uses for NST are the creat... |
https://en.wikipedia.org/wiki/Fisheries%20Law%20Centre | The Fisheries Law Centre (FLC) is a grassroots non-profit research centre headquartered in Vancouver, British Columbia, Canada. Although FLC is based in Canada, its outreach is global with researchers located in many countries around the world. FLC aims to ensure family fishermen’ access to justice, to protect marine e... |
https://en.wikipedia.org/wiki/Mathcad | Mathcad is computer software for the verification, validation, documentation and re-use of mathematical calculations in engineering and science, notably mechanical, chemical, electrical, and civil engineering. Released in 1986 on DOS, it introduced live editing (WYSIWYG) of typeset mathematical notation in an interacti... |
https://en.wikipedia.org/wiki/143rd%20meridian%20west | The meridian 143° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 143rd meridian west line forms a great circle with the 37th meridian east.
From Pole to Pole
Starting at the... |
https://en.wikipedia.org/wiki/151st%20meridian%20west | The meridian 151° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 151st meridian west forms a great circle with the 29th meridian east.
From Pole to Pole
Starting at the North... |
https://en.wikipedia.org/wiki/Four%20corners%20of%20the%20world | Several cosmological and mythological systems portray four corners of the world or four quarters of the world corresponding approximately to the four points of the compass (or the two solstices and two equinoxes). At the center may lie a sacred mountain, garden, world tree, or other beginning-point of creation. Often f... |
https://en.wikipedia.org/wiki/Tripe%20Marketing%20Board | The Tripe Marketing Board is a UK based online publication which seeks to promote the consumption of tripe through the use of humour. The Los Angeles Times has described the group as an "internet and publishing phenomenon that may or may not be completely serious". It parodies defunct government organisations such as t... |
https://en.wikipedia.org/wiki/Wireline%20QA/QC | Wireline quality assurance and quality control (wireline QA/QC) is a set of requirements and operating procedures which take place before, during, and after the wireline logging job. The main merits of wireline QA/QC include accuracy and precision of recorded data and information. Accuracy is a measure of the correctne... |
https://en.wikipedia.org/wiki/Salvia%20verbenaca | Salvia verbenaca, also known as wild clary or wild sage, is native to the British Isles, the Mediterranean region in Southern Europe, North Africa, and Near East, and in the Caucasus. It can be found as an introduced species that has naturalized in meadows in the Eastern United States.
S. verbenaca is a tall perennial... |
https://en.wikipedia.org/wiki/VMware%20Infrastructure | VMware Infrastructure is a collection of virtualization products from VMware (a division of Dell Technologies). Virtualization is an abstraction layer that decouples hardware from operating systems. The VMware Infrastructure suite allows enterprises to optimize and manage their IT infrastructure through virtualization ... |
https://en.wikipedia.org/wiki/Penumbra%20%28law%29 | In United States constitutional law, the penumbra includes a group of rights derived, by implication, from other rights explicitly protected in the Bill of Rights. These rights have been identified through a process of "reasoning-by-interpolation", where specific principles are recognized from "general idea[s]" that ar... |
https://en.wikipedia.org/wiki/United%20States%20Department%20of%20Veterans%20Affairs%20emblems%20for%20headstones%20and%20markers | The United States Department of Veterans Affairs (VA) maintains many cemeteries specifically devoted to veterans. Most have various rules regarding what must take place in order to be interred there.
Procedure
The VA only permits graphics on government-furnished headstones or markers that are approved emblems of belie... |
https://en.wikipedia.org/wiki/National%20Museum%20of%20Language | The National Museum of Language, located in College Park, Maryland, is a cultural institution established in 1997 to "examine the history, impact, and art of language," and remains one of the few institutions designed for this purpose.
The museum opened officially on May 3, 2008 in College Park, with an exhibition ent... |
https://en.wikipedia.org/wiki/Wildlife%20of%20Zanzibar | The wildlife of Zanzibar consists of terrestrial and marine flora and fauna in the archipelago of Zanzibar, an autonomous region of Tanzania. Its floral vegetation is categorized among the coastal forests of eastern Africa as the Southern Zanzibar-Inhambane coastal forest mosaic and the Northern Zanzibar-Inhambane coas... |
https://en.wikipedia.org/wiki/Arithmetic%20underflow | The term arithmetic underflow (also floating point underflow, or just underflow) is a condition in a computer program where the result of a calculation is a number of more precise absolute value than the computer can actually represent in memory on its central processing unit (CPU).
Arithmetic underflow can occur when... |
https://en.wikipedia.org/wiki/Suture%20%28geology%29 | In structural geology, a suture is a joining together along a major fault zone, of separate terranes, tectonic units that have different plate tectonic, metamorphic and paleogeographic histories. The suture is often represented on the surface by an orogen or mountain range.
Overview
In plate tectonics, sutures are the... |
https://en.wikipedia.org/wiki/De%20Bruijn%20notation | In mathematical logic, the De Bruijn notation is a syntax for terms in the λ calculus invented by the Dutch mathematician Nicolaas Govert de Bruijn. It can be seen as a reversal of the usual syntax for the λ calculus where the argument in an application is placed next to its corresponding binder in the function instead... |
https://en.wikipedia.org/wiki/INOC-DBA | The INOC-DBA (Inter-Network Operations Center Dial-By-ASN) hotline phone system is a global voice telephony network that connects the network operations centers and security incident response teams of critical Internet infrastructure providers such as backbone carriers, Internet service providers, and Internet exchange... |
https://en.wikipedia.org/wiki/Tellurion | A tellurion (also spelled tellurian, tellurium, and yet another name is loxocosm), is a clock, typically of French or Swiss origin, surmounted by a mechanism that depicts how day, night, and the seasons are caused by the rotation and orientation of Earth on its axis and its orbit around the Sun. The clock normally also... |
https://en.wikipedia.org/wiki/Mitochondrial%20replacement%20therapy | Mitochondrial replacement therapy (MRT), sometimes called mitochondrial donation, is the replacement of mitochondria in one or more cells to prevent or ameliorate disease. MRT originated as a special form of in vitro fertilisation in which some or all of the future baby's mitochondrial DNA (mtDNA) comes from a third pa... |
https://en.wikipedia.org/wiki/Isolated%20system | In physical science, an isolated system is either of the following:
a physical system so far removed from other systems that it does not interact with them.
a thermodynamic system enclosed by rigid immovable walls through which neither mass nor energy can pass.
Though subject internally to its own gravity, an isolat... |
https://en.wikipedia.org/wiki/Pearl.com | Pearl.com is an "online paid question-and-answer service" based in San Francisco. "People aren't always willing to wait" in "legal, medical and other advice" led to "a growing number of those help-seekers are getting their guidance online."
History
Pearl.com began in 2003 as JustAnswer. Founder Andy Kurtzig had previo... |
https://en.wikipedia.org/wiki/Recam%C3%A1n%27s%20sequence | In mathematics and computer science, Recamán's sequence is a well known sequence defined by a recurrence relation. Because its elements are related to the previous elements in a straightforward way, they are often defined using recursion.
It takes its name after its inventor , a Colombian mathematician.
Definition ... |
https://en.wikipedia.org/wiki/Agrostology | Agrostology (from Greek , agrōstis, "type of grass"; and , -logia), sometimes graminology, is the scientific study of the grasses (the family Poaceae, or Gramineae). The grasslike species of the sedge family (Cyperaceae), the rush family (Juncaceae), and the bulrush or cattail family (Typhaceae) are often included with... |
https://en.wikipedia.org/wiki/Ubiquitin%20conjugating%20enzyme%20e2%20q2 | Ubiquitin conjugating enzyme E2 Q2 is a protein that in humans is encoded by the UBE2Q2 gene. |
https://en.wikipedia.org/wiki/Radeon%20HD%205000%20series | The Evergreen series is a family of GPUs developed by Advanced Micro Devices for its Radeon line under the ATI brand name. It was employed in Radeon HD 5000 graphics card series and competed directly with Nvidia's GeForce 400 Series.
Release
The existence was spotted on a presentation slide from AMD Technology Analys... |
https://en.wikipedia.org/wiki/AT%26T%20CallVantage | AT&T CallVantage was a voice over Internet Protocol telephone service first offered in 2004 by AT&T Corp., upon the heels of its announcement that it would stop seeking traditional local and long-distance landline customers.
Renaming
After SBC Communications purchased AT&T Corp. in 2005 and renamed itself AT&T Inc., C... |
https://en.wikipedia.org/wiki/Bryoria%20fremontii | Bryoria fremontii is a dark brown, horsehair lichen that grows hanging from trees in western North America, and northern Europe and Asia. It grows abundantly in some areas, and is an important traditional food for a few First Nations in North America.
Name
The species is currently classified as Bryoria fremontii, alth... |
https://en.wikipedia.org/wiki/Hyper-IL-6 | Hyper-IL-6 is a designer cytokine, which was generated by the German biochemist Stefan Rose-John. Hyper-IL-6 is a fusion protein of the four-helical cytokine Interleukin-6 and the soluble Interleukin-6 receptor which are covalently linked by a flexible peptide linker. Interleukin-6 on target cells binds to a membrane b... |
https://en.wikipedia.org/wiki/Antitragicus | The antitragicus is an intrinsic muscle of the outer ear.
In human anatomy, the antitragicus arises from the outer part of the antitragus, and is inserted into the cauda helicis (or tail of the helix) and antihelix.
The function of the muscle is to adjusts the shape of the ear by pulling the antitragus and cauda heli... |
https://en.wikipedia.org/wiki/Tagetitoxin | Tagetitoxin (TGT) is a bacterial phytotoxin produced by Pseudomonas syringae pv. tagetis.
Chemical structure
When TGT was first isolated, it was only partially characterized. The first proposed chemical structure of TGT involved an eight-membered ring, but this was revised shortly afterward to a bicyclic structure ... |
https://en.wikipedia.org/wiki/Antimicrobial%20peptides | Antimicrobial peptides (AMPs), also called host defence peptides (HDPs) are part of the innate immune response found among all classes of life. Fundamental differences exist between prokaryotic and eukaryotic cells that may represent targets for antimicrobial peptides. These peptides are potent, broad spectrum antimicr... |
https://en.wikipedia.org/wiki/Gun-type%20fission%20weapon | Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the "gun" method: shooting one piece of sub-critical material into another. Although this is sometimes pictured as two sub-critical hemispheres driven together to make a super... |
https://en.wikipedia.org/wiki/Biomanipulation | Biomanipulation is the deliberate alteration of an ecosystem by adding or removing species, especially predators.
Aquatic ecosystems
Changing the fish population of bodies of water as a part of watershed management can facilitate desirable changes in aquatic ecosystems suffering from eutrophication characterized by do... |
https://en.wikipedia.org/wiki/Semapimod | Semapimod (INN), formerly known as CNI-1493, is an investigational new drug which has anti-inflammatory, anti-cytokine, immunomodulatory, antiviral and antimalarial properties.
History
Semapimod was developed at the former Picower Institute for Medical Research, and is now licensed to Cytokine PharmaSciences. In 2000... |
https://en.wikipedia.org/wiki/Thermalisation | In physics, thermalisation (or thermalization) is the process of physical bodies reaching thermal equilibrium through mutual interaction. In general the natural tendency of a system is towards a state of equipartition of energy and uniform temperature that maximizes the system's entropy. Thermalisation, thermal equili... |
https://en.wikipedia.org/wiki/Dehn%20plane | In geometry, Max Dehn introduced two examples of planes, a semi-Euclidean geometry and a non-Legendrian geometry, that have infinitely many lines parallel to a given one that pass through a given point, but where the sum of the angles of a triangle is at least . A similar phenomenon occurs in hyperbolic geometry, exce... |
https://en.wikipedia.org/wiki/TOTEM%20experiment | The TOTEM experiment (TOTal Elastic and diffractive cross section Measurement) is one of the nine detector experiments at CERN's Large Hadron Collider. The other eight are: ATLAS, ALICE, CMS, LHCb, LHCf, MoEDAL, FASER and SND@LHC. It shares an interaction point with CMS. The detector aims at measurement of total cross... |
https://en.wikipedia.org/wiki/Asplund%20space | In mathematics — specifically, in functional analysis — an Asplund space or strong differentiability space is a type of well-behaved Banach space. Asplund spaces were introduced in 1968 by the mathematician Edgar Asplund, who was interested in the Fréchet differentiability properties of Lipschitz functions on Banach s... |
https://en.wikipedia.org/wiki/Lipid%20bilayer | The lipid bilayer (or phospholipid bilayer) is a thin polar membrane made of two layers of lipid molecules. These membranes are flat sheets that form a continuous barrier around all cells. The cell membranes of almost all organisms and many viruses are made of a lipid bilayer, as are the nuclear membrane surrounding th... |
https://en.wikipedia.org/wiki/Behrend%20sequence | In number theory, a Behrend sequence is an integer sequence whose multiples include almost all integers. The sequences are named after Felix Behrend.
Definition
If is a sequence of integers greater than one, and if denotes the set of positive integer multiples of members of , then is a Behrend sequence if has natu... |
https://en.wikipedia.org/wiki/Apolipoprotein%20H | β2-glycoprotein 1, also known as beta-2 glycoprotein 1 and Apolipoprotein H (Apo-H), is a 38 kDa multifunctional plasma protein that in humans is encoded by the APOH gene. One of its functions is to bind cardiolipin. When bound, the structure of cardiolipin and β2-GP1 both undergo large changes in structure. Within the... |
https://en.wikipedia.org/wiki/Oscillator%20linewidth | The concept of a linewidth is borrowed from laser spectroscopy. The linewidth of a laser is a measure of its phase noise. The spectrogram of a laser is produced by passing its light through a prism. The spectrogram of the output of a pure noise-free laser will consist of a single infinitely thin line. If the laser exh... |
https://en.wikipedia.org/wiki/Purified%20water | Purified water is water that has been mechanically filtered or processed to remove impurities and make it suitable for use. Distilled water was, formerly, the most common form of purified water, but, in recent years, water is more frequently purified by other processes including capacitive deionization, reverse osmosis... |
https://en.wikipedia.org/wiki/Enharmonic%20keyboard | An enharmonic keyboard is a musical keyboard, where enharmonically equivalent notes do not have identical pitches. A conventional keyboard has, for instance, only one key and pitch for C and D, but an enharmonic keyboard would have two different keys and pitches for these notes. Traditionally, such keyboards use black ... |
https://en.wikipedia.org/wiki/Ancient%20DNA | Ancient DNA (aDNA) is DNA isolated from ancient specimens. Due to degradation processes (including cross-linking, deamination and fragmentation) ancient DNA is more degraded in comparison with contemporary genetic material. Even under the best preservation conditions, there is an upper boundary of 0.4–1.5 million years... |
https://en.wikipedia.org/wiki/P%C3%A9clet%20number | In continuum mechanics, the Péclet number (, after Jean Claude Eugène Péclet) is a class of dimensionless numbers relevant in the study of transport phenomena in a continuum. It is defined to be the ratio of the rate of advection of a physical quantity by the flow to the rate of diffusion of the same quantity driven by... |
https://en.wikipedia.org/wiki/Support%20of%20a%20module | In commutative algebra, the support of a module M over a commutative ring A is the set of all prime ideals of A such that (that is, the localization of M at is not equal to zero). It is denoted by . The support is, by definition, a subset of the spectrum of A.
Properties
if and only if its support is empty.
Le... |
https://en.wikipedia.org/wiki/Gromov%27s%20inequality%20for%20complex%20projective%20space | In Riemannian geometry, Gromov's optimal stable 2-systolic inequality is the inequality
,
valid for an arbitrary Riemannian metric on the complex projective space, where the optimal bound is attained
by the symmetric Fubini–Study metric, providing a natural geometrisation of quantum mechanics. Here is the stable 2... |
https://en.wikipedia.org/wiki/Douglas%20J.%20Futuyma | Douglas Joel Futuyma (born 24 April 1942) is an American evolutionary biologist. He is a Distinguished Professor in the Department of Ecology and Evolution at Stony Brook University in Stony Brook, New York and a Research Associate on staff at the American Museum of Natural History in New York City. His research focuse... |
https://en.wikipedia.org/wiki/Human%20skin | The human skin is the outer covering of the body and is the largest organ of the integumentary system. The skin has up to seven layers of ectodermal tissue guarding muscles, bones, ligaments and internal organs. Human skin is similar to most of the other mammals' skin, and it is very similar to pig skin. Though nearly... |
https://en.wikipedia.org/wiki/Department%20of%20Mathematics%2C%20University%20of%20Manchester | The Department of Mathematics at the University of Manchester is one of the largest unified mathematics departments in the United Kingdom, with over 90 academic staff and an undergraduate intake of roughly 400 students per year (including students studying mathematics with a minor in another subject) and approximately ... |
https://en.wikipedia.org/wiki/Uridine%20diphosphate%20glucuronic%20acid | UDP-glucuronic acid is a sugar used in the creation of polysaccharides and is an intermediate in the biosynthesis of ascorbic acid (except in primates and guinea pigs). It also participates in the heme degradation process of human.
It is made from UDP-glucose by UDP-glucose 6-dehydrogenase (EC 1.1.1.22) using NAD+ as ... |
https://en.wikipedia.org/wiki/The%20Ground%20of%20Arts | Robert Recorde's Arithmetic: or, The Ground of Arts was one of the first printed English textbooks on arithmetic and the most popular of its time. The Ground of Arts appeared in London in 1543, and it was reprinted around 45 more editions until 1700. Editors and contributors of new sections included John Dee, John Mell... |
https://en.wikipedia.org/wiki/Vesicular%20monoamine%20transporter | The vesicular monoamine transporter (VMAT) is a transport protein integrated into the membranes of synaptic vesicles of presynaptic neurons. It transports monoamine neurotransmitters – such as dopamine, serotonin, norepinephrine, epinephrine, and histamine – into the vesicles, which release the neurotransmitters into s... |
https://en.wikipedia.org/wiki/Galea%20%28botany%29 | A galea is an overhanging, helmet-shaped, part of the flower that protects the reproductive parts from precipitation, wind, or unwanted visitors. The galea is composed of one or more petals or sepals that have either fused or folded together. The name is taken from the same word for a Roman soldier's helmet.
The spec... |
https://en.wikipedia.org/wiki/George%20Macdonald%20Medal | The George Macdonald Medal is jointly awarded by the Royal Society of Tropical Medicine and Hygiene and the London School of Hygiene & Tropical Medicine "to recognise outstanding contributions to tropical hygiene."
The award was established in 1972 following the death of George Macdonald in 1967.
It is awarded every... |
https://en.wikipedia.org/wiki/Hermite%20number | In mathematics, Hermite numbers are values of Hermite polynomials at zero argument. Typically they are defined for physicists' Hermite polynomials.
Formal definition
The numbers Hn = Hn(0), where Hn(x) is a Hermite polynomial of order n, may be called Hermite numbers.
The first Hermite numbers are:
Recursion relati... |
https://en.wikipedia.org/wiki/Harmonic%20mixer | The harmonic mixer and subharmonic mixer are a type of frequency mixer, which is a circuit that changes one signal frequency to another. The ordinary mixer has two input signals and one output signal. If the two input signals are sinewaves at frequencies f1 and f2, then the output signal consists of frequency component... |
https://en.wikipedia.org/wiki/Amnion%20nodosum | Amnion nodosum are nodules found on the amnion, and is frequently present in oligohydramnios. The nodules are composed of squamous cell aggregates derived from the vernix caseosa on the fetal skin.
Amnion nodosum is caused by the unexpected abrasion of amnion with depositions of the fetal surface cells and acellular d... |
https://en.wikipedia.org/wiki/Cipher%20Academy | is a Japanese manga series written by Nisio Isin and illustrated by Yūji Iwasaki. It has been serialized in Shueisha's Weekly Shōnen Jump magazine since November 2022, with its chapters collected in three tankōbon volumes as of August 2023.
Plot
The plot takes place in the eponymous Cipher Academy, a former all girls... |
https://en.wikipedia.org/wiki/Unspent%20transaction%20output | In cryptocurrencies, an unspent transaction output (UTXO) is a distinctive element in a subset of digital currency models. A UTXO represents a certain amount of cryptocurrency that has been authorized by a sender and is available to be spent by a recipient. The utilization of UTXOs in transaction processes is a key fea... |
https://en.wikipedia.org/wiki/Thyristor%20power%20controller | Thyristor power controllers (SCR power controllers) control power or voltage supplied to a load. Typical applications are generally found where power needs to be varied and ultimately converted into thermal energy. For example, the controllers are used in industrial furnace construction and in plastic processing.
How ... |
https://en.wikipedia.org/wiki/Morse%E2%80%93Smale%20system | In dynamical systems theory, an area of pure mathematics, a Morse–Smale system is a smooth dynamical system whose non-wandering set consists of finitely many hyperbolic equilibrium points and hyperbolic periodic orbits and satisfying a transversality condition on the stable and unstable manifolds. Morse–Smale systems a... |
https://en.wikipedia.org/wiki/Junctional%20adhesion%20molecule | A junctional adhesion molecule (JAM) is a protein that is a member of the immunoglobulin superfamily, and is expressed in a variety of different tissues, such as leukocytes, platelets, and epithelial and endothelial cells. They have been shown to regulate signal complex assembly on both their cytoplasmic and extracellu... |
https://en.wikipedia.org/wiki/Application-release%20automation | Application-release automation (ARA) refers to the process of packaging and deploying an application or update of an application from development, across various environments, and ultimately to production. ARA solutions must combine the capabilities of deployment automation, environment management and modeling, and rel... |
https://en.wikipedia.org/wiki/Baking%20powder | Baking powder is a dry chemical leavening agent, a mixture of a carbonate or bicarbonate and a weak acid. The base and acid are prevented from reacting prematurely by the inclusion of a buffer such as cornstarch. Baking powder is used to increase the volume and lighten the texture of baked goods. It works by releasing ... |
https://en.wikipedia.org/wiki/3x%20%2B%201%20semigroup | In algebra, the 3x + 1 semigroup is a special subsemigroup of the multiplicative semigroup of all positive rational numbers. The elements of a generating set of this semigroup are related to the sequence of numbers involved in the still open Collatz conjecture or the "3x + 1 problem". The 3x + 1 semigroup has been used... |
https://en.wikipedia.org/wiki/History%20of%20email | The history of email entails an evolving set of technologies and standards that culminated in the email systems in use today.
Computer-based messaging between users of the same system became possible following the advent of time-sharing in the early 1960s, with a notable implementation by MIT's CTSS project in 1965. I... |
https://en.wikipedia.org/wiki/Galactic%20superwind | A galactic superwind, or just galactic wind, is a high velocity stellar wind emanating from either newly formed massive stars, spiral density waves, or as the result of the effects of supermassive black holes. They are normally observed in starburst galaxies.
Description
Galactic winds are strong stellar winds made ... |
https://en.wikipedia.org/wiki/Environmental%20persistent%20pharmaceutical%20pollutant | The term environmental persistent pharmaceutical pollutants (EPPP) was first suggested in the nomination in 2010 of pharmaceuticals and environment as an emerging issue in a Strategic Approach to International Chemicals Management (SAICM) by the International Society of Doctors for the Environment (ISDE). The occurring... |
https://en.wikipedia.org/wiki/MyGreenElectronics | myGreenElectronics is a public service online portal for consumers to recycle or reuse their electronics products once they have reached end-of-life. It was designed by The Consumer Electronics Association to empower consumers to make what some people consider "responsible choices" throughout their products’ life cycl... |
https://en.wikipedia.org/wiki/Bubble%20column%20reactor | A bubble column reactor is a chemical reactor that belongs to the general class of multiphase reactors, which consists of three main categories: trickle bed reactor (fixed or packed bed), fluidized bed reactor, and bubble column reactor. A bubble column reactor is a very simple device consisting of a vertical vessel f... |
https://en.wikipedia.org/wiki/Institutional%20review%20board | An institutional review board (IRB), also known as an independent ethics committee (IEC), ethical review board (ERB), or research ethics board (REB), is a committee at an institution that applies research ethics by reviewing the methods proposed for research done at that institution to ensure that the projects are ethi... |
https://en.wikipedia.org/wiki/Borel%E2%80%93Cantelli%20lemma | In probability theory, the Borel–Cantelli lemma is a theorem about sequences of events. In general, it is a result in measure theory. It is named after Émile Borel and Francesco Paolo Cantelli, who gave statement to the lemma in the first decades of the 20th century. A related result, sometimes called the second Bore... |
https://en.wikipedia.org/wiki/ToolTalk | ToolTalk is an interapplication communications system developed by Sun Microsystems (SunSoft) in order to allow applications to communicate with each other at runtime.
Applications supporting ToolTalk can construct "high-level" messages and hand them off to the system's ToolTalk server, which determines the proper re... |
https://en.wikipedia.org/wiki/Figurate%20number | The term figurate number is used by different writers for members of different sets of numbers, generalizing from triangular numbers to different shapes (polygonal numbers) and different dimensions (polyhedral numbers). The term can mean
polygonal number
a number represented as a discrete -dimensional regular geomet... |
https://en.wikipedia.org/wiki/Sodium%20dodecyl%20sulfate | Sodium dodecyl sulfate (SDS) or sodium lauryl sulfate (SLS), sometimes written sodium laurilsulfate, is an organic compound with the formula and structure . It is an anionic surfactant used in many cleaning and hygiene products. This compound is the sodium salt of the 12-carbon organosulfate. Its hydrocarbon tail comb... |
https://en.wikipedia.org/wiki/Herbert%20Sichel | Herbert Sichel (1915–1995) was a statistician who made great advances in the areas of both theoretical and applied statistics.
He developed the Sichel-t estimator for the log-normal distribution's t-statistic. He also made great leaps in the area of the generalized inverse Gaussian distribution, the mixture of which w... |
https://en.wikipedia.org/wiki/Sony%20NEX-C3 | The Sony NEX-C3 is a digital camera announced 8 June 2011. It is a mirrorless interchangeable lens camera with a compact form factor and APS-C size image sensor. The Sony camera was manufactured in Black, Silver, and Pink. This camera was unfairly compared against later models such as the NEX-5R using a body only weigh... |
https://en.wikipedia.org/wiki/Wheat%20and%20chessboard%20problem | The wheat and chessboard problem (sometimes expressed in terms of rice grains) is a mathematical problem expressed in textual form as:
The problem may be solved using simple addition. With 64 squares on a chessboard, if the number of grains doubles on successive squares, then the sum of grains on all 64 squares is: a... |
https://en.wikipedia.org/wiki/Fucus%20vesiculosus | Fucus vesiculosus, known by the common names bladderwrack, black tang, rockweed, sea grapes, bladder fucus, sea oak, cut weed, dyers fucus, red fucus and rock wrack, is a seaweed found on the coasts of the North Sea, the western Baltic Sea and the Atlantic and Pacific Oceans. It was the original source of iodine, disc... |
https://en.wikipedia.org/wiki/K%C3%B6nig%27s%20theorem%20%28kinetics%29 | In kinetics, König's theorem or König's decomposition is a mathematical relation derived by Johann Samuel König that assists with the calculations of angular momentum and kinetic energy of bodies and systems of particles.
For a system of particles
The theorem is divided in two parts.
First part of König's theorem
... |
https://en.wikipedia.org/wiki/Brass%20tablature | Brass Tablature is a rather rare form of music notation that applies to all brass instruments, but is most commonly found written for trumpet. It consists of lines with partials, and numbers representing valve or slide positions.
Examples
The basic setup is shown here, with names of open notes for each partial on the... |
https://en.wikipedia.org/wiki/Atomic%20nucleus | The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. After the discovery of the neutron in 1932, models for a nucleus composed of protons and neutrons were quickly develo... |
https://en.wikipedia.org/wiki/Flavin-containing%20amine%20oxidoreductase | Flavin-containing amine oxidoreductases are a family of various amine oxidases, including maize polyamine oxidase (PAO), L-amino acid oxidases (LAO) and various flavin containing monoamine oxidases (MAO). The aligned region includes the flavin binding site of these enzymes. In vertebrates, MAO plays an important role i... |
https://en.wikipedia.org/wiki/Dual%20modular%20redundancy | In reliability engineering, dual modular redundancy (DMR) is when components of a system are duplicated, providing redundancy in case one should fail. It is particularly applied to systems where the duplicated components work in parallel, particularly in fault-tolerant computer systems. A typical example is a complex c... |
https://en.wikipedia.org/wiki/CloudForge | CloudForge was a software-as-a-service product for application development tools and services, such as Git hosting, Subversion (SVN) hosting, issue trackers and Application Lifecycle Management. CloudForge was built on CollabNet’s cloud hosting and integration platform, acquired from Codesion.com in October 2010.
Hist... |
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