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Vuvuzela | The vuvuzela is a horn, with an inexpensive injection-moulded plastic shell about 65 centimetres (2 ft) long, which produces a loud monotone note, typically around B♭ 3 (the first B♭ below middle C). Some models are made in two parts to facilitate storage, and this design also allows pitch variation. Many types of vuvu... |
Unisolvent point set | In approximation theory, a finite collection of points X⊂Rn is often called unisolvent for a space W if any element w∈W is uniquely determined by its values on X .X is unisolvent for Πnm (polynomials in n variables of degree at most m) if there exists a unique polynomial in Πnm of lowest possible degree which int... |
Android Mini PC MK802 | The MK802 is a PC-on-a-stick produced by Rikomagic, a Chinese company using mostly two series of Systems on a chip architectures: AllWinner A1X SoC, based on an ARM architecture, composed of an ARM V7 based Cortex-A8 1 GHz processor, a Mali-400 MP GPU, Wi-Fi 802.11 b/g/n, and a VPU CedarX capable of displaying up to 10... |
Epigenetic controls in ciliates | Epigenetic controls in ciliates is about the unique characteristic of Ciliates, which is that they possess two kinds of nuclei (this phenomenon is called nuclear dimorphism): a micronucleus used for inheritance, and a macronucleus, which controls the metabolism. The micronucleus contains the entirety of the genome wher... |
GenoCAD | GenoCAD is one of the earliest computer assisted design tools for synthetic biology. The software is a bioinformatics tool developed and maintained by GenoFAB, Inc.. GenoCAD facilitates the design of protein expression vectors, artificial gene networks and other genetic constructs for genetic engineering and is based o... |
Tuck rule (ice hockey) | The tuck rule is a rule by the National Hockey League (NHL) that stipulates how jerseys must be worn over protective equipment. Notable players who have previously tucked in their jerseys include Alexander Ovechkin, Evgeni Malkin, Patrice Bergeron, Kris Letang, Pavel Datsyuk, Wayne Gretzky and Jaromir Jagr. However, th... |
Pig iron | Pig iron, also known as crude iron, is an intermediate good used by the iron industry in the production of steel, which is developed by smelting iron ore in a blast furnace. Pig iron has a high carbon content, typically 3.8–4.7%, along with silica and other constituents of dross, which makes it brittle and not useful d... |
Sofosbuvir/velpatasvir/voxilaprevir | Sofosbuvir/velpatasvir/voxilaprevir, sold under the brand name Vosevi, is a fixed-dose combination medication for the treatment of hepatitis C. It combines three drugs that each act by a different mechanism of action against the hepatitis C virus: sofosbuvir, velpatasvir, and voxilaprevir.Vosevi was approved for medica... |
Barrier cone | In mathematics, specifically functional analysis, the barrier cone is a cone associated to any non-empty subset of a Banach space. It is closely related to the notions of support functions and polar sets. |
Double heterostructure | A double heterostructure, sometimes called double heterojunction, is formed when two semiconductor materials are grown into a "sandwich". One material (such as AlGaAs) is used for the outer layers (or cladding), and another of smaller band gap (such as GaAs) is used for the inner layer. In this example, there are two A... |
NIST RBAC model | The NIST RBAC model is a standardized definition of role-based access control. Although originally developed by the National Institute of Standards and Technology, the standard was adopted and is copyrighted and distributed as INCITS 359-2004 by the International Committee for Information Technology Standards (INCITS).... |
Polymatroid | In mathematics, a polymatroid is a polytope associated with a submodular function. The notion was introduced by Jack Edmonds in 1970. It is also described as the multiset analogue of the matroid. |
Switching time | For a frequency synthesizer, the switching time or more colloquially the switching speed is the amount of time from when the command for the next frequency is requested until the time that the synthesizer's output becomes usable and meets the specified requirements. Such requirements will vary depending on the design o... |
Chorismate mutase | In enzymology, chorismate mutase (EC 5.4.99.5) is an enzyme that catalyzes the chemical reaction for the conversion of chorismate to prephenate in the pathway to the production of phenylalanine and tyrosine, also known as the shikimate pathway. |
We | In Modern English, we is a plural, first-person pronoun. |
PIKO | Piko (stylized PIKO, pronounced "peek-oh") is a German model train brand in Europe that also exports to the United States and other parts of the world. |
Visual field test | A visual field test is an eye examination that can detect dysfunction in central and peripheral vision which may be caused by various medical conditions such as glaucoma, stroke, pituitary disease, brain tumours or other neurological deficits. Visual field testing can be performed clinically by keeping the subject's ga... |
BioCyc database collection | The BioCyc database collection is an assortment of organism specific Pathway/Genome Databases (PGDBs) that provide reference to genome and metabolic pathway information for thousands of organisms. As of July 2023, there were over 20,040 databases within BioCyc. SRI International, based in Menlo Park, California, mainta... |
Creatine methyl ester | Creatine methyl ester is the methyl ester derivative of the amino acid creatine. It can be prepared by the esterification of creatine with methanol. |
(Trimethylsilyl)methyl chloride | (Trimethylsilyl)methyl chloride is the organosilicon compound with the formula (CH3)3SiCH2Cl. A colorless, volatile liquid, it is an alkylating agent that is employed in organic synthesis, especially as a precursor to (trimethylsilyl)methyllithium. In the presence of triphenylphosphine, it olefinates benzophenones: (CH... |
TPA-023 | TPA-023 (MK-0777) is an anxiolytic drug with a novel chemical structure, which is used in scientific research. It has similar effects to benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic. It is a subtype-selective, mixed allosteric modular at the benzodiazepine locat... |
Test money | Test money (or test notes, test bills, funny money, Monopoly money) are a part of the test apparatus that are often used with currency handling equipment, such as automatic teller machines. While it is often desirable to use actual banknotes or coins in the process of testing currency handling equipment, the inherent ... |
Minimal instruction set computer | Minimal instruction set computer (MISC) is a central processing unit (CPU) architecture, usually in the form of a microprocessor, with a very small number of basic operations and corresponding opcodes, together forming an instruction set. Such sets are commonly stack-based rather than register-based to reduce the size ... |
GNOME Character Map | GNOME Character Map, formerly known as Gucharmap, is a free and open-source software Unicode character map program, part of GNOME. This program allows characters to be displayed by Unicode block or script type. It includes brief descriptions of related characters and occasionally meanings of the character in question. ... |
Aquapet | Aquapets are interactive, electronic toys that were introduced in the US in 2004 by Wild Planet. They consist of a transparent, water-filled case housing a thumb-sized figure, and a base with a microchip, microphone, and speaker to register and respond to sounds made by kids or by other Aquapets. Each character has its... |
Fragment (logic) | In mathematical logic, a fragment of a logical language or theory is a subset of this logical language obtained by imposing syntactical restrictions on the language. Hence, the well-formed formulae of the fragment are a subset of those in the original logic. However, the semantics of the formulae in the fragment and in... |
Title (animal) | In animal husbandry and animal fancy, animals can compete in various shows and sports for titles signifying excellence. These titles vary depending on the species of the animal, the kind of show, and the country the event is held in. |
Aridification | Aridification is the process of a region becoming increasingly arid, or dry. It refers to long term change, rather than seasonal variation.
It is often measured as the reduction of average soil moisture content.
It can be caused by reduced precipitation, increased evaporation, lowering of water tables, and changes in g... |
Buffer analysis | In geographic information systems (GIS) and spatial analysis, buffer analysis is the determination of a zone around a geographic feature containing locations that are within a specified distance of that feature, the buffer zone (or just buffer). A buffer is likely the most commonly used tool within the proximity analys... |
4-HO-DPT | 4-HO-DPT (4-hydroxy-N,N-dipropyltryptamine, Deprocin) is a substituted tryptamine with psychedelic effects. It is the 4-hydroxyl analog of dipropyltryptamine (DPT).
In 2019, Chadeayne et al. solved the crystal structure of the fumarate salt of 4-HO-DPT. The authors describe the structure as follows: "The asymmetric uni... |
2-phosphosulfolactate phosphatase | The enzyme 2-phosphosulfolactate phosphatase (EC 3.1.3.71) catalyzes the reaction (2R)-2-phospho-3-sulfolactate + H2O ⇌ (2R)-3-sulfolactate + phosphateThis enzyme belongs to the family of hydrolases, specifically those acting on phosphoric monoester bonds. The systematic name (R)-2-phospho-3-sulfolactate phosphohydro... |
Hypersurface | In geometry, a hypersurface is a generalization of the concepts of hyperplane, plane curve, and surface. A hypersurface is a manifold or an algebraic variety of dimension n − 1, which is embedded in an ambient space of dimension n, generally a Euclidean space, an affine space or a projective space.
Hypersurfaces share,... |
Limbic resonance | Limbic resonance is the idea that the capacity for sharing deep emotional states arises from the limbic system of the brain. These states include the dopamine circuit-promoted feelings of empathic harmony, and the norepinephrine circuit-originated emotional states of fear, anxiety and anger.The concept was advanced in ... |
Nasal septum perforation | A nasal septum perforation is a medical condition in which the nasal septum, the bony/cartilaginous wall dividing the nasal cavities, develops a hole or fissure. |
ZooMS | Zooarchaeology by mass spectrometry, commonly referred to by the abbreviation ZooMS, is a scientific method that identifies animal species by means of characteristic peptide sequences in the protein collagen. ZooMS is the most common archaeological application of peptide mass fingerprinting (PMF) and can be used for sp... |
Directory (OpenVMS command) | In computer software, specifically the DCL command-line interface of the OpenVMS operating system, the DIRECTORY command (often abbreviated as DIR) is used to list the files inside a directory. It is analogous to the DOS dir and Unix ls commands. |
Pairs trade | A pairs trade or pair trading is a market neutral trading strategy enabling traders to profit from virtually any market conditions: uptrend, downtrend, or sideways movement. This strategy is categorized as a statistical arbitrage and convergence trading strategy. Pair trading was pioneered by Gerry Bamberger and later ... |
MTERF1 | Mitochondrial transcription termination factor 1, also known as MTERF1, is a protein which in humans is encoded by the MTERF gene.This gene encodes a mitochondrial transcription termination factor. This protein participates in attenuating transcription from the mitochondrial genome; this attenuation allows higher level... |
Dead Sea salt | Dead Sea salt refers to salt and other mineral deposits extracted or taken from the Dead Sea. The composition of this material differs significantly from oceanic salt. |
Video interlude | A video interlude is an interlude during a performance that shows a video. Video interludes are often played in concerts, showing a music video (often made specifically for the show), usually featuring the artists while the artist takes a break or costume change.
Video interludes have been used by Madonna since at leas... |
College circuit | College circuit is a form of motion picture distribution where old films as well as new ones are shown on college campuses, usually in the evening. The selections range from art house fare to wide release films and cult classics (also see midnight movies for a similar practice). |
Redux (JavaScript library) | Redux is an open-source JavaScript library for managing and centralizing application state. It is most commonly used with libraries such as React or Angular for building user interfaces. Similar to (and inspired by) Facebook's Flux architecture, it was created by Dan Abramov and Andrew Clark.
Since mid-2016, the primar... |
InterVideo WinDVR | InterVideo WinDVR is a commercial digital video recorder (DVR) software package for Windows operating systems. It allows PCs to work as a TV set and a DVR at the same time, using a hardware-based TV turner card. It has an integrated electronic program guide (EPG) that is updated via the Internet. |
Interspinous plane | The interspinous plane (Planum interspinale) is an anatomical transverse plane that passes through the anterior superior iliac spines. It separates the lateral lumbar region from the inguinal region and the umbilical region from the pubic region. |
Tautology (rule of inference) | In propositional logic, tautology is either of two commonly used rules of replacement. The rules are used to eliminate redundancy in disjunctions and conjunctions when they occur in logical proofs. They are: The principle of idempotency of disjunction: P∨P⇔P and the principle of idempotency of conjunction: P∧P⇔P Where ... |
Soda bread | Soda bread is a variety of quick bread traditionally made in a variety of cuisines in which sodium bicarbonate (otherwise known as "baking soda", or in Ireland, "bread soda") is used as a leavening agent instead of the traditional yeast. The ingredients of traditional soda bread are flour, baking soda, salt, and butter... |
Dream argument | The dream argument is the postulation that the act of dreaming provides preliminary evidence that the senses we trust to distinguish reality from illusion should not be fully trusted, and therefore, any state that is dependent on our senses should at the very least be carefully examined and rigorously tested to determi... |
Crew | A crew is a body or a class of people who work at a common activity, generally in a structured or hierarchical organization. A location in which a crew works is called a crewyard or a workyard. The word has nautical resonances: the tasks involved in operating a ship, particularly a sailing ship, providing numerous spec... |
Total curvature | In mathematical study of the differential geometry of curves, the total curvature of an immersed plane curve is the integral of curvature along a curve taken with respect to arc length: ∫abk(s)ds=2πN. |
Pacchionian foramen | Pacchionian foramen means: incisurae tentorii (aka tentorial notch) a thick opening in the center of the diaphragm of sella through which the infundibulum passesThe Pacchionian foramen (incisura tentorii) is important due to some types of brain herniation through it, i.e. supratentorial, infratentorial herniation. |
Glk (software) | Glk is a portable application programming interface (API) created by Andrew Plotkin for use by programs with a text interface; these programs mostly include interactive fiction (IF) interpreters for Z-machine, TADS, Glulx, and Hugo games, and IF games written in more obscure file formats such as those used by Level 9 C... |
Mic in track | Mic in track (as well as Line in track and Mixer in track) was the default name of a file created after recording with the program MusicMatch Jukebox. In the late 1990s and early 2000s, Mic in track files began appearing on file-sharing networks such as Napster, usually without the knowledge of their creators. Because ... |
Inclusion bodies | Inclusion bodies are aggregates of specific types of protein found in neurons, a number of tissue cells including red blood cells, bacteria, viruses, and plants. Inclusion bodies of aggregations of multiple proteins are also found in muscle cells affected by inclusion body myositis and hereditary inclusion body myopath... |
Anthrone | Anthrone is a tricyclic aromatic ketone. It is used for a common cellulose assay and in the colorimetric determination of carbohydrates.Derivatives of anthrone are used in pharmacy as laxative. They stimulate the motion of the colon and reduce water reabsorption. Some anthrone derivatives can be extracted from a variet... |
Savoury (dish) | A savoury is the final course of a traditional British formal meal, following the sweet pudding or dessert course. The savoury is designed to "clear the palate" before the port is served. It generally consists of salty and plain elements. |
TEDMED | TEDMED is an annual conference focusing on health and medicine, with a year-round web-based community. TEDMED is an independent event operating under license from the nonprofit TED conference. |
F-test | An F-test is any statistical test in which the test statistic has an F-distribution under the null hypothesis. It is most often used when comparing statistical models that have been fitted to a data set, in order to identify the model that best fits the population from which the data were sampled. Exact "F-tests" mainl... |
Level staff | A level staff, also called levelling rod, is a graduated wooden or aluminium rod, used with a levelling instrument to determine the difference in height between points or heights of points above a vertical datum.
When used for stadiametric rangefinding, the level staff is called a stadia rod. |
STEbus | The STEbus (also called the IEEE-1000 bus) is a non-proprietary, processor-independent, computer bus with 8 data lines and 20 address lines. It was popular for industrial control systems in the late 1980s and early 1990s before the ubiquitous IBM PC dominated this market. STE stands for STandard Eurocard.Although no lo... |
Chntpw | chntpw is a software utility for resetting or blanking local passwords used by Windows NT operating systems on Linux. It does this by editing the SAM database where Windows stores password hashes. |
Master data management | Master data management (MDM) is a technology-enabled discipline in which business and information technology work together to ensure the uniformity, accuracy, stewardship, semantic consistency and accountability of the enterprise's official shared master data assets. |
Rebound attack | The rebound attack is a tool in the cryptanalysis of cryptographic hash functions. The attack was first published in 2009 by Florian Mendel, Christian Rechberger, Martin Schläffer and Søren Thomsen. It was conceived to attack AES like functions such as Whirlpool and Grøstl, but was later shown to also be applicable to ... |
Ducrete | DUCRETE (Depleted Uranium Concrete) is a high density concrete alternative investigated for use in construction of casks for storage of radioactive waste. It is a composite material containing depleted uranium dioxide aggregate instead of conventional gravel, with a Portland cement binder. |
XQuery | XQuery (XML Query) is a query and functional programming language that queries and transforms collections of structured and unstructured data, usually in the form of XML, text and with vendor-specific extensions for other data formats (JSON, binary, etc.). The language is developed by the XML Query working group of the... |
Type-1.5 superconductor | Type-1.5 superconductors are multicomponent superconductors characterized by two or more coherence lengths, at least one of which is shorter than the magnetic field penetration length λ , and at least one of which is longer. This is in contrast to single-component superconductors, where there is only one coherence len... |
Auth-Code | An Auth-Code, also known as an EPP code, authorization code, transfer code, or Auth-Info Code, is a generated passcode required to transfer an Internet domain name between domain registrars; the code is intended to indicate that the domain name owner has authorized the transfer.Auth-Codes are created by the current reg... |
PPGI | PPGI is pre-painted galvanised iron, also known as pre-coated steel, coil coated steel, color coated steel etc., typically with a hot dip zinc coated steel substrate. |
Crystallographic image processing | Crystallographic image processing (CIP) is traditionally understood as being a set of key steps in the determination of the atomic structure of crystalline matter from high-resolution electron microscopy (HREM) images obtained in a transmission electron microscope (TEM) that is run in the parallel illumination mode. Th... |
Protruding ear | Prominent ear, otapostasis or bat ear is an abnormally protruding human ear. It may be unilateral or bilateral. The concha is large with poorly developed antihelix and scapha. It is the result of malformation of cartilage during primitive ear development in intrauterine life. The deformity can be corrected anytime afte... |
Ceinture | Ceinture (French, 'belt' or 'girdle', and may refer to a ring road) may refer to: |
Chuang Yin-ching | Kenneth Chuang Yin-ching (Chinese: 莊銀清) is a Taiwanese epidemiologist. As of January 2020, he leads the Taiwan Centers for Disease Control (TCDC) Communicable Disease Control Medical Network. |
1,3-Benzodioxolyl-N-ethylbutanamine | Ethylbenzodioxolylbutanamine (EBDB; Ethyl-J) is a lesser-known entactogen, stimulant, and psychedelic. It is the N-ethyl analogue of benzodioxylbutanamine (BDB; "J"), and also the α-ethyl analogue of methylenedioxyethylamphetamine (MDEA; "Eve"). |
Hypercyclic morphogenesis | Hypercyclic morphogenesis refers to the emergence of a higher order of self-reproducing structure or organization or hierarchy within a system, first introduced by J. Barkley Rosser, Jr. in 1991 (Chap. 12). It involves combining the idea of the hypercycle, an idea due to Manfred Eigen and Peter Schuster (1979) with tha... |
Heligimbal | The Cineflex Heligimbal is a form of gimbal technology consisting of a motion-stabilized helicopter mount for motion picture cameras.
The technology, originally developed by the military, provides a high degree of motion stabilization and telephoto capabilities to achieve high-quality aerial shots despite the vibration... |
Gravitation (book) | Gravitation is a widely adopted textbook on Albert Einstein's general theory of relativity, written by Charles W. Misner, Kip S. Thorne, and John Archibald Wheeler. It was originally published by W. H. Freeman and Company in 1973 and reprinted by Princeton University Press in 2017. It is frequently abbreviated MTW (for... |
Alpha-N-acetylneuraminate alpha-2,8-sialyltransferase | In enzymology, an alpha-N-acetylneuraminate alpha-2,8-sialyltransferase (EC 2.4.99.8) is an enzyme that catalyzes the chemical reaction CMP-N-acetylneuraminate + alpha-N-acetylneuraminyl-2,3-beta-D-galactosyl-R ⇌ CMP + alpha-N-acetylneuraminyl-2,8-alpha-N-acetylneuraminyl-2,3-beta-D- galactosyl-RThus, the two substrat... |
Pyloric stenosis | Pyloric stenosis is a narrowing of the opening from the stomach to the first part of the small intestine (the pylorus). Symptoms include projectile vomiting without the presence of bile. This most often occurs after the baby is fed. The typical age that symptoms become obvious is two to twelve weeks old.The cause of py... |
Battery (baseball) | In baseball, the battery is the pitcher and the catcher, who may also be called batterymen, or batterymates in relation to one another. |
Carbon subsulfide | Carbon subsulfide is an organic, sulfur-containing chemical compound with the formula C3S2 and structure S=C=C=C=S. This deep red liquid is immiscible with water but soluble in organic solvents. It readily polymerizes at room temperature to form a hard black solid. |
2-Methoxybenzaldehyde | 2-Methoxybenzaldehyde is an organic compound with the formula CH3OC6H4CHO. It is also commonly referred to as o-anisaldehyde. As a methylated version of salicylaldehyde, the molecule consists of a benzene ring with adjacent formyl and a methoxy groups. It is a colorless solid with a pleasant aroma. The related isomer 4... |
Cyprenorphine | Cyprenorphine (M285), N-cyclo-propylmethyl-6,14-endoetheno-7α-(1-hydroxy-1-methylethyl)-6,7,8,14-tetrahydronororipavine, is an opioid drug. It is related to more well-known opioids such as buprenorphine, which is used as an analgesic and for the treatment of opioid addiction, and diprenorphine, which is used as an anti... |
Wind advisory | A wind advisory is generally issued by the National Weather Service of the United States when there are sustained thunderstorm winds of 31–39 miles per hour (50–63 km/h) and/or gusts of 46–57 miles per hour (74–92 km/h) over land. Winds over the said cap will trigger high wind alerts rather than a wind advisory. The ad... |
2010 AU118 | 2010 AU118 (also written 2010 AU118) is a potential Amor near-Earth asteroid with an observation arc of only 1.4 days and thus a poorly determined orbit. It was announced on 27 May 2010 based on images taken by the Wide-field Infrared Survey Explorer (WISE) on 13–15 January 2010. It was removed from the Sentry Risk Tab... |
Geometric abstraction | Geometric abstraction is a form of abstract art based on the use of geometric forms sometimes, though not always, placed in non-illusionistic space and combined into non-objective (non-representational) compositions. Although the genre was popularized by avant-garde artists in the early twentieth century, similar motif... |
Intermezzo | In music, an intermezzo (, Italian pronunciation: [interˈmɛddzo], plural form: intermezzi), in the most general sense, is a composition which fits between other musical or dramatic entities, such as acts of a play or movements of a larger musical work. In music history, the term has had several different usages, which ... |
Toxic cough syrup | Since the 1990s, several mass poisonings from toxic cough syrup have occurred in developing countries. In these cases, an ingredient in cough syrup, glycerine (glycerol), was replaced with diethylene glycol, a cheaper alternative to glycerine for industrial applications. Diethylene glycol is nephrotoxic and can result ... |
Microsoft Distributed Transaction Coordinator | The Microsoft Distributed Transaction Coordinator (MSDTC) service is a component of Microsoft Windows that is responsible for coordinating transactions that span multiple resource managers, such as databases, message queues, and file systems. MSDTC is included in Windows 2000 and later operating systems, and is also av... |
Chandrashekhar S. Jog | Chandrashekhar S. Jog is a professor in the department of mechanical engineering at Indian Institute of Science. He works in the areas of Solid mechanics, Continuum mechanics, and Finite element methods. He has authored books on Continuum mechanics, and Fluid mechanics. |
Human–animal communication | Human–animal communication is the communication observed between humans and other animals, ranging from non-verbal cues and vocalizations to the use of language. |
Fiddlehead | Fiddleheads or fiddlehead greens are the furled fronds of a young fern, harvested for use as a vegetable. |
Nonlinear optics | Nonlinear optics (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization density P responds non-linearly to the electric field E of the light. The non-linearity is typically observed only at very high light intensities (when the electric field of ... |
Tulle gras | Tulle gras (French, "oily tulle") or tulle gras dressing is a type of bandage commonly used in France, although the term is also used in English. It consists of fabric impregnated with soft paraffin oil (98 parts), balsam of Peru (1 part), and olive oil (1 part), which prevents its sticking to wounds, but means that it... |
Zero element | In mathematics, a zero element is one of several generalizations of the number zero to other algebraic structures. These alternate meanings may or may not reduce to the same thing, depending on the context. |
CGNS | CGNS stands for CFD General Notation System. It is a general, portable, and extensible standard for the storage and retrieval of CFD analysis data. It consists of a collection of conventions, and free and open software implementing those conventions. It is self-descriptive, cross-platform also termed platform or machin... |
Back-rank checkmate | In chess, a back-rank checkmate (also known as a corridor mate) is a checkmate delivered by a rook or queen along the opponent's back rank (that is, the row closest to them) in which the mated king is unable to move up the board because the king is blocked by friendly pieces (usually pawns) on the second rank. |
Nomenclature | Nomenclature (UK: , US: ) is a system of names or terms, or the rules for forming these terms in a particular field of arts or sciences. The principles of naming vary from the relatively informal conventions of everyday speech to the internationally agreed principles, rules and recommendations that govern the formation... |
Wave propagation | In physics, mathematics, engineering, and related fields, a wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities. Waves can be periodic, in which case those quantities oscillate repeatedly about an equilibrium (resting) value at some frequency. When the entire waveform moves in ... |
Smart Keyboard | Apple Inc. has designed and developed many external keyboard models for use with families of Apple computers, such as the Apple II, Mac, and iPad. The Magic Keyboard and Magic Keyboard with Numeric Keypad designed to be used via either Bluetooth and USB connectivity, and have integrated rechargeable batteries; The Smar... |
Weighted-average life | In finance, the weighted-average life (WAL) of an amortizing loan or amortizing bond, also called average life, is the weighted average of the times of the principal repayments: it's the average time until a dollar of principal is repaid. |
Education for Chemical Engineers | Education for Chemical Engineers is a peer-reviewed academic journal published quarterly by Elsevier on behalf of the Institution of Chemical Engineers. The journal's scope covers all aspects of chemical engineering education. The journal was established in 2006 and publishes educational research papers, teaching and l... |
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