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https://en.wikipedia.org/wiki/Assay | An assay is an investigative (analytic) procedure in laboratory medicine, mining, pharmacology, environmental biology and molecular biology for qualitatively assessing or quantitatively measuring the presence, amount, or functional activity of a target entity. The measured entity is often called the analyte, the measur... |
https://en.wikipedia.org/wiki/V%20%28operating%20system%29 | The V operating system (sometimes written V-System) is a discontinued microkernel distributed operating system that was developed by faculty and students in the Distributed Systems Group at Stanford University from 1981 to 1988, led by Professors David Cheriton and Keith A. Lantz. V was the successor to the Thoth opera... |
https://en.wikipedia.org/wiki/Sound%20intensity | Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m2). One application is the noise measurement of sound intensity in the air... |
https://en.wikipedia.org/wiki/Pei-Yuan%20Wei | Pei-Yuan Wei () (d. 2023) was a Taiwanese-American businessman who created ViolaWWW, the first popular graphical web browser.
Career
Pei-Yuan Wei was born in Pingtung County, Taiwan. He graduated from Berkeley High School in 1986. He received his bachelor's degree from the University of California, Berkeley, and was ... |
https://en.wikipedia.org/wiki/Sound%20power | Sound power or acoustic power is the rate at which sound energy is emitted, reflected, transmitted or received, per unit time. It is defined as "through a surface, the product of the sound pressure, and the component of the particle velocity, at a point on the surface in the direction normal to the surface, integrated ... |
https://en.wikipedia.org/wiki/CSNET | The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States. Its purpose was to extend networking benefits, for computer science departments at academic and research institutions that could not be directly connected to ARPANET, due to funding or authorization limitation... |
https://en.wikipedia.org/wiki/Cohen%E2%80%93Macaulay%20ring | In mathematics, a Cohen–Macaulay ring is a commutative ring with some of the algebro-geometric properties of a smooth variety, such as local equidimensionality. Under mild assumptions, a local ring is Cohen–Macaulay exactly when it is a finitely generated free module over a regular local subring. Cohen–Macaulay rings p... |
https://en.wikipedia.org/wiki/Riemann%E2%80%93Hurwitz%20formula | In mathematics, the Riemann–Hurwitz formula, named after Bernhard Riemann and Adolf Hurwitz, describes the relationship of the Euler characteristics of two surfaces when one is a ramified covering of the other. It therefore connects ramification with algebraic topology, in this case. It is a prototype result for many o... |
https://en.wikipedia.org/wiki/NESSIE | NESSIE (New European Schemes for Signatures, Integrity and Encryption) was a European research project funded from 2000 to 2003 to identify secure cryptographic primitives. The project was comparable to the NIST AES process and the Japanese Government-sponsored CRYPTREC project, but with notable differences from both. ... |
https://en.wikipedia.org/wiki/IBM%208100 | The IBM 8100 Information System, announced Oct. 3, 1978, was at one time IBM’s principal distributed processing engine, providing local processing capability under two incompatible operating systems (DPPX and DPCX) and was a follow-on to the IBM 3790.
The 8100, when used with the Distributed Processing Programming Ex... |
https://en.wikipedia.org/wiki/Hormesis | Hormesis is a characteristic of many biological processes, namely a biphasic or triphasic response to exposure to increasing amounts of a substance or condition. Within the hormetic zone, the biological response to low exposures to toxins and other stressors is generally favorable. The term "hormesis" comes from Greek ... |
https://en.wikipedia.org/wiki/Centered%20hexagonal%20number | In mathematics and combinatorics, a centered hexagonal number, or hex number, is a centered figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in a hexagonal lattice. The following figures illustrate this arrangement for the first four centered hexagonal num... |
https://en.wikipedia.org/wiki/MD5CRK | In cryptography, MD5CRK was a volunteer computing effort (similar to distributed.net) launched by Jean-Luc Cooke and his company, CertainKey Cryptosystems, to demonstrate that the MD5 message digest algorithm is insecure by finding a collision two messages that produce the same MD5 hash. The project went live on March ... |
https://en.wikipedia.org/wiki/2-satisfiability | In computer science, 2-satisfiability, 2-SAT or just 2SAT is a computational problem of assigning values to variables, each of which has two possible values, in order to satisfy a system of constraints on pairs of variables. It is a special case of the general Boolean satisfiability problem, which can involve constrain... |
https://en.wikipedia.org/wiki/Triad%20%28monitors%29 | In cathode-ray tube (CRT) terms, a triad is a group of 3 phosphor dots coloured red, green, and blue on the inside of the CRT display of a computer monitor or television set. By directing differing intensities of cathode rays onto the 3 phosphor dots, the triad will display a colour by combining the red, green and blue... |
https://en.wikipedia.org/wiki/Vacuum%20fluorescent%20display | A vacuum fluorescent display (VFD) is a display device once commonly used on consumer electronics equipment such as video cassette recorders, car radios, and microwave ovens.
A VFD operates on the principle of cathodoluminescence, roughly similar to a cathode ray tube, but operating at much lower voltages. Each tube i... |
https://en.wikipedia.org/wiki/Atlas%20Supervisor | The Atlas Supervisor was the program which managed the allocation of processing resources of Manchester University's Atlas Computer so that the machine was able to act on many tasks and user programs concurrently.
Its various functions included running the Atlas computer's virtual memory (Atlas Supervisor paper, secti... |
https://en.wikipedia.org/wiki/Program%20synthesis | In computer science, program synthesis is the task to construct a program that provably satisfies a given high-level formal specification. In contrast to program verification, the program is to be constructed rather than given; however, both fields make use of formal proof techniques, and both comprise approaches of di... |
https://en.wikipedia.org/wiki/Identification%20key | In biology, an identification key, taxonomic key, or biological key is a printed or computer-aided device that aids the identification of biological entities, such as plants, animals, fossils, microorganisms, and pollen grains. Identification keys are also used in many other scientific and technical fields to identify... |
https://en.wikipedia.org/wiki/115%20%28number%29 | 115 (one hundred [and] fifteen) is the natural number following 114 and preceding 116.
In mathematics
115 has a square sum of divisors:
There are 115 different rooted trees with exactly eight nodes, 115 inequivalent ways of placing six rooks on a 6 × 6 chess board in such a way that no two of the rooks attack each ot... |
https://en.wikipedia.org/wiki/116%20%28number%29 | 116 (one hundred [and] sixteen) is the natural number following 115 and preceding 117.
In mathematics
116 is a noncototient, meaning that there is no solution to the equation , where stands for Euler's totient function.
116! + 1 is a factorial prime.
There are 116 ternary Lyndon words of length six, and 116 irreduc... |
https://en.wikipedia.org/wiki/117%20%28number%29 | 117 (one hundred [and] seventeen) is the natural number following 116 and preceding 118.
In mathematics
117 is the smallest possible length of the longest edge of an integer Heronian tetrahedron (a tetrahedron whose edge lengths, face areas and volume are all integers). Its other edge lengths are 51, 52, 53, 80 and 84... |
https://en.wikipedia.org/wiki/118%20%28number%29 | 118 (one hundred [and] eighteen) is the natural number following 117 and preceding 119.
In mathematics
There is no answer to the equation φ(x) = 118, making 118 a nontotient.
Four expressions for 118 as the sum of three positive integers have the same product:
14 + 50 + 54 = 15 + 40 + 63 = 18 + 30 + 70 = 21 + 25 + 72... |
https://en.wikipedia.org/wiki/Lists%20of%20fictional%20species | There are a number of lists of fictional species:
Extraterrestrial
List of fictional extraterrestrials (by media type)
Lists of fictional alien species: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
Humanoid
Lists of humanoids
Literature
Comics
Television
Film
Video games
Paleoanthropol... |
https://en.wikipedia.org/wiki/Lindbladian | In quantum mechanics, the Gorini–Kossakowski–Sudarshan–Lindblad equation (GKSL equation, named after Vittorio Gorini, Andrzej Kossakowski, George Sudarshan and Göran Lindblad), master equation in Lindblad form, quantum Liouvillian, or Lindbladian is one of the general forms of Markovian master equations describing open... |
https://en.wikipedia.org/wiki/Symbols%20of%20death | Symbols of death are the motifs, images and concepts associated with death throughout different cultures, religions and societies.
Images
Various images are used traditionally to symbolize death; these rank from blunt depictions of cadavers and their parts to more allusive suggestions that time is fleeting and all m... |
https://en.wikipedia.org/wiki/RSA%20Factoring%20Challenge | The RSA Factoring Challenge was a challenge put forward by RSA Laboratories on March 18, 1991 to encourage research into computational number theory and the practical difficulty of factoring large integers and cracking RSA keys used in cryptography. They published a list of semiprimes (numbers with exactly two prime fa... |
https://en.wikipedia.org/wiki/Zenzizenzizenzic | Zenzizenzizenzic is an obsolete form of mathematical notation representing the eighth power of a number (that is, the zenzizenzizenzic of x is x8), dating from a time when powers were written out in words rather than as superscript numbers. This term was suggested by Robert Recorde, a 16th-century Welsh physician, math... |
https://en.wikipedia.org/wiki/Tensor%20calculus | In mathematics, tensor calculus, tensor analysis, or Ricci calculus is an extension of vector calculus to tensor fields (tensors that may vary over a manifold, e.g. in spacetime).
Developed by Gregorio Ricci-Curbastro and his student Tullio Levi-Civita, it was used by Albert Einstein to develop his general theory of r... |
https://en.wikipedia.org/wiki/D%27Alembert%27s%20principle | D'Alembert's principle, also known as the Lagrange–d'Alembert principle, is a statement of the fundamental classical laws of motion. It is named after its discoverer, the French physicist and mathematician Jean le Rond d'Alembert, and Italian-French mathematician Joseph Louis Lagrange. D'Alembert's principle generalize... |
https://en.wikipedia.org/wiki/MiniScribe | MiniScribe Corporation was a manufacturer of disk storage products, founded in Longmont, Colorado in 1980. MiniScribe designed and sold stepper motor-based hard disk drives with a large amount of onboard logic for the time. They eventually moved into higher-profile voice coil motor designs, and won major contracts with... |
https://en.wikipedia.org/wiki/Sky%20island | Sky islands are isolated mountains surrounded by radically different lowland environments. The term originally referred to those found on the Mexican Plateau, and has extended to similarly isolated high-elevation forests. The isolation has significant implications for these natural habitats. The American Southwest regi... |
https://en.wikipedia.org/wiki/On-Line%20Encyclopedia%20of%20Integer%20Sequences | The On-Line Encyclopedia of Integer Sequences (OEIS) is an online database of integer sequences. It was created and maintained by Neil Sloane while researching at AT&T Labs. He transferred the intellectual property and hosting of the OEIS to the OEIS Foundation in 2009. Sloane is the chairman of the OEIS Foundation.
O... |
https://en.wikipedia.org/wiki/Agonist | An agonist is a chemical that activates a receptor to produce a biological response. Receptors are cellular proteins whose activation causes the cell to modify what it is currently doing. In contrast, an antagonist blocks the action of the agonist, while an inverse agonist causes an action opposite to that of the agoni... |
https://en.wikipedia.org/wiki/ASIMO | ASIMO (Advanced Step in Innovative Mobility) is a humanoid robot created by Honda in 2000. It is displayed in the Miraikan museum in Tokyo, Japan. On 8 July 2018, Honda posted the last update of Asimo through their official page stating that it would be ceasing all development and production of Asimo robots in order to... |
https://en.wikipedia.org/wiki/Henderson%E2%80%93Hasselbalch%20equation | In chemistry and biochemistry, the Henderson–Hasselbalch equation
relates the pH of a chemical solution of a weak acid to the numerical value of the acid dissociation constant, Ka, of acid and the ratio of the concentrations, of the acid and its conjugate base in an equilibrium.
For example, the acid may be acetic ... |
https://en.wikipedia.org/wiki/Mac%20OS%20X%2010.1 | Mac OS X 10.1 (code named Puma) is the second major release of macOS, Apple's desktop and server operating system. It superseded Mac OS X 10.0 and preceded Mac OS X Jaguar. Mac OS X 10.1 was released on September 25, 2001, as a free update for Mac OS X 10.0 users.
The operating system was handed out for no charge by A... |
https://en.wikipedia.org/wiki/Mac%20OS%20X%2010.0 | Mac OS X 10.0 (code named Cheetah) is the first major release of Mac OS X, Apple's desktop and server operating system. It was released on March 24, 2001, for a price of $129 after a public beta.
Mac OS X was Apple's successor to the classic Mac OS. It was derived from NeXTSTEP and FreeBSD, and featured a new user int... |
https://en.wikipedia.org/wiki/Invagination | Invagination is the process of a surface folding in on itself to form a cavity, pouch or tube. In developmental biology, invagination is a mechanism that takes place during gastrulation. This mechanism or cell movement happens mostly in the vegetal pole. Invagination consists of the folding of an area of the exterior s... |
https://en.wikipedia.org/wiki/Clathrin | Clathrin is a protein that plays a major role in the formation of coated vesicles. Clathrin was first isolated and named by Barbara Pearse in 1976. It forms a triskelion shape composed of three clathrin heavy chains and three light chains. When the triskelia interact they form a polyhedral lattice that surrounds the ve... |
https://en.wikipedia.org/wiki/Mucus | Mucus ( ) is a slippery aqueous secretion produced by, and covering, mucous membranes. It is typically produced from cells found in mucous glands, although it may also originate from mixed glands, which contain both serous and mucous cells. It is a viscous colloid containing inorganic salts, antimicrobial enzymes (such... |
https://en.wikipedia.org/wiki/Nocodazole | Nocodazole is an antineoplastic agent which exerts its effect in cells by interfering with the polymerization of microtubules. Microtubules are one type of fibre which constitutes the cytoskeleton, and the dynamic microtubule network has several important roles in the cell, including vesicular transport, forming the mi... |
https://en.wikipedia.org/wiki/Flow%20cytometry | Flow cytometry (FC) is a technique used to detect and measure physical and chemical characteristics of a population of cells or particles.
In this process, a sample containing cells or particles is suspended in a fluid and injected into the flow cytometer instrument. The sample is focused to ideally flow one cell at a... |
https://en.wikipedia.org/wiki/Territory%20%28animal%29 | In ethology, territory is the sociographical area that an animal consistently defends against conspecific competition (or, occasionally, against animals of other species) using agonistic behaviors or (less commonly) real physical aggression. Animals that actively defend territories in this way are referred to as being... |
https://en.wikipedia.org/wiki/Computer%20poker%20player | A computer poker player is a computer program designed to play the game of poker (generally the Texas hold 'em version), against human opponents or other computer opponents. It is commonly referred to as pokerbot or just simply bot. As of 2019, computers can beat any human player in poker.
On the Internet
These bots ... |
https://en.wikipedia.org/wiki/Fractional%20part | The fractional part or decimal part of a non‐negative real number is the excess beyond that number's integer part. The latter is defined as the largest integer not greater than , called floor of or . Then, the fractional part can be formulated as a difference:
.
For a positive number written in a conventional posit... |
https://en.wikipedia.org/wiki/Magnetocrystalline%20anisotropy | In physics, a ferromagnetic material is said to have magnetocrystalline anisotropy if it takes more energy to magnetize it in certain directions than in others. These directions are usually related to the principal axes of its crystal lattice. It is a special case of magnetic anisotropy. In other words, the excess en... |
https://en.wikipedia.org/wiki/COPII | The Coat Protein Complex II, or COPII, is a group of proteins that facilitate the formation of vesicles to transport proteins from the endoplasmic reticulum to the Golgi apparatus or endoplasmic-reticulum–Golgi intermediate compartment. This process is termed anterograde transport, in contrast to the retrograde transpo... |
https://en.wikipedia.org/wiki/COPI | COPI is a coatomer, a protein complex that coats vesicles transporting proteins from the cis end of the Golgi complex back to the rough endoplasmic reticulum (ER), where they were originally synthesized, and between Golgi compartments. This type of transport is retrograde transport, in contrast to the anterograde tran... |
https://en.wikipedia.org/wiki/Equals%20sign | The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol , which is used to indicate equality in some well-defined sense. In an equation, it is placed between two expressions that have the same value, or for which one studies the conditions under wh... |
https://en.wikipedia.org/wiki/NICAM | Near Instantaneous Companded Audio Multiplex (NICAM) is an early form of lossy compression for digital audio. It was originally developed in the early 1970s for point-to-point links within broadcasting networks. In the 1980s, broadcasters began to use NICAM compression for transmissions of stereo TV sound to the public... |
https://en.wikipedia.org/wiki/Poisson%20summation%20formula | In mathematics, the Poisson summation formula is an equation that relates the Fourier series coefficients of the periodic summation of a function to values of the function's continuous Fourier transform. Consequently, the periodic summation of a function is completely defined by discrete samples of the original functi... |
https://en.wikipedia.org/wiki/Thermal%20diode | The term "thermal diode" can refer to:
a (possibly non-electrical) device which allows heat to flow preferentially in one direction;
an electrical (semiconductor) diode in reference to a thermal effect or function;
or it may describe both situations, where an electrical diode is used as a heat pump or thermoelectri... |
https://en.wikipedia.org/wiki/Broth | Broth, also known as bouillon (), is a savory liquid made of water in which meat, fish, or vegetables have been simmered for a short period of time. It can be eaten alone, but it is most commonly used to prepare other dishes, such as soups, gravies, and sauces.
Commercially prepared liquid broths are available, typica... |
https://en.wikipedia.org/wiki/Inverse%20kinematics | In computer animation and robotics, inverse kinematics is the mathematical process of calculating the variable joint parameters needed to place the end of a kinematic chain, such as a robot manipulator or animation character's skeleton, in a given position and orientation relative to the start of the chain. Given joint... |
https://en.wikipedia.org/wiki/Complexity%20class | In computational complexity theory, a complexity class is a set of computational problems "of related resource-based complexity". The two most commonly analyzed resources are time and memory.
In general, a complexity class is defined in terms of a type of computational problem, a model of computation, and a bounded r... |
https://en.wikipedia.org/wiki/Passwd | passwd is a command on Unix, Plan 9, Inferno, and most Unix-like operating systems used to change a user's password. The password entered by the user is run through a key derivation function to create a hashed version of the new password, which is saved. Only the hashed version is stored; the entered password is not sa... |
https://en.wikipedia.org/wiki/Joule%20%28programming%20language%29 | Joule is a capability-secure massively-concurrent dataflow programming language, designed for building distributed applications. It is so concurrent that the order of statements within a block is irrelevant to the operation of the block. Statements are executed whenever possible, based on their inputs. Everything in Jo... |
https://en.wikipedia.org/wiki/Thermal%20reservoir | A thermal reservoir, also thermal energy reservoir or thermal bath, is a thermodynamic system with a heat capacity so large that the temperature of the reservoir changes relatively little when a much more significant amount of heat is added or extracted. As a conceptual simplification, it effectively functions as an in... |
https://en.wikipedia.org/wiki/Remainder | In mathematics, the remainder is the amount "left over" after performing some computation. In arithmetic, the remainder is the integer "left over" after dividing one integer by another to produce an integer quotient (integer division). In algebra of polynomials, the remainder is the polynomial "left over" after dividin... |
https://en.wikipedia.org/wiki/PubMed | PubMed is a free search engine accessing primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintain the database as part of the Entrez system of information retrieval.
From 1971 to... |
https://en.wikipedia.org/wiki/VISCII | VISCII is an unofficially-defined modified ASCII character encoding for using the Vietnamese language with computers. It should not be confused with the similarly-named officially registered VSCII encoding. VISCII keeps the 95 printable characters of ASCII unmodified, but it replaces 6 of the 33 control characters wit... |
https://en.wikipedia.org/wiki/Spoofing%20attack | In the context of information security, and especially network security, a spoofing attack is a situation in which a person or program successfully identifies as another by falsifying data, to gain an illegitimate advantage.
Internet
Spoofing and TCP/IP
Many of the protocols in the TCP/IP suite do not provide mecha... |
https://en.wikipedia.org/wiki/Exotoxin | An exotoxin is a toxin secreted by bacteria. An exotoxin can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host. Exotoxins may be secreted, or, similar to endotoxins, may be released during lysis of the cell. Gram negative... |
https://en.wikipedia.org/wiki/EMI%20%28protocol%29 | External Machine Interface (EMI), an extension to Universal Computer Protocol (UCP), is a protocol primarily used to connect to short message service centres (SMSCs) for mobile telephones. The protocol was developed by CMG Wireless Data Solutions, now part of Mavenir.
Syntax
A typical EMI/UCP exchange looks like thi... |
https://en.wikipedia.org/wiki/Non-vascular%20plant | Non-vascular plants are plants without a vascular system consisting of xylem and phloem. Instead, they may possess simpler tissues that have specialized functions for the internal transport of water.
Non-vascular plants include two distantly related groups:
Bryophytes, an informal group that taxonomists treat as thr... |
https://en.wikipedia.org/wiki/Digital%20image | A digital image is an image composed of picture elements, also known as pixels, each with finite, discrete quantities of numeric representation for its intensity or gray level that is an output from its two-dimensional functions fed as input by its spatial coordinates denoted with x, y on the x-axis and y-axis, respect... |
https://en.wikipedia.org/wiki/CIMD | Computer Interface to Message Distribution (CIMD) is a proprietary short message service centre protocol developed by Nokia for their SMSC (now: Nokia Networks).
Syntax
An example CIMD exchange looks like the following:
<STX>03:007<TAB>021:12345678<TAB>033:hello<TAB><ETX>
<STX>53:007<TAB>021:12345678<TAB>060:... |
https://en.wikipedia.org/wiki/Minkowski%20addition | In geometry, the Minkowski sum of two sets of position vectors A and B in Euclidean space is formed by adding each vector in A to each vector in B:
The Minkowski difference (also Minkowski subtraction, Minkowski decomposition, or geometric difference) is the corresponding inverse, where produces a set that could be... |
https://en.wikipedia.org/wiki/Hausdorff%20measure | In mathematics, Hausdorff measure is a generalization of the traditional notions of area and volume to non-integer dimensions, specifically fractals and their Hausdorff dimensions. It is a type of outer measure, named for Felix Hausdorff, that assigns a number in [0,∞] to each set in or, more generally, in any metric ... |
https://en.wikipedia.org/wiki/LISTSERV | The term Listserv (styled by the registered trademark licensee, L-Soft International, Inc., as LISTSERV) has been used to refer to electronic mailing list software applications in general, but is more properly applied to a few early instances of such software, which allows a sender to send one email to a list, which th... |
https://en.wikipedia.org/wiki/Phantom%20Entertainment | Phantom Entertainment, Inc. (known as Infinium Labs, Inc. until 2006) was a company founded in 2002 by Tim Roberts which made computer keyboards. However, Phantom was best known for the Phantom, a video game console advertised for Internet gaming on demand in 2004; it was never marketed, leading to suggestions that it ... |
https://en.wikipedia.org/wiki/Concyclic%20points | In geometry, a set of points are said to be concyclic (or cocyclic) if they lie on a common circle. A polygon whose vertices are concyclic is called a cyclic polygon, and the circle is called its circumscribing circle or circumcircle. All concyclic points are equidistant from the center of the circle.
Three points in ... |
https://en.wikipedia.org/wiki/Point%20in%20polygon | In computational geometry, the point-in-polygon (PIP) problem asks whether a given point in the plane lies inside, outside, or on the boundary of a polygon. It is a special case of point location problems and finds applications in areas that deal with processing geometrical data, such as computer graphics, computer vis... |
https://en.wikipedia.org/wiki/Probabilistically%20checkable%20proof | In computational complexity theory, a probabilistically checkable proof (PCP) is a type of proof that can be checked by a randomized algorithm using a bounded amount of randomness and reading a bounded number of bits of the proof. The algorithm is then required to accept correct proofs and reject incorrect proofs with ... |
https://en.wikipedia.org/wiki/Public%20address%20system | A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. PA systems are used in any public venue tha... |
https://en.wikipedia.org/wiki/Quantum%20Corporation | Quantum Corporation is a data storage, management, and protection company that provides technology to store, manage, archive, and protect video and unstructured data throughout the data lifecycle. Their products are used by enterprises, media and entertainment companies, government agencies, big data companies, and lif... |
https://en.wikipedia.org/wiki/Touch%20typing | Touch typing (also called blind typing, or touch keyboarding) is a style of typing. Although the phrase refers to typing without using the sense of sight to find the keys—specifically, a touch typist will know their location on the keyboard through muscle memory—the term is often used to refer to a specific form of tou... |
https://en.wikipedia.org/wiki/Perfect%20field | In algebra, a field k is perfect if any one of the following equivalent conditions holds:
Every irreducible polynomial over k has distinct roots.
Every irreducible polynomial over k is separable.
Every finite extension of k is separable.
Every algebraic extension of k is separable.
Either k has characteristic 0, o... |
https://en.wikipedia.org/wiki/Lysis%20buffer | A lysis buffer is a buffer solution used for the purpose of breaking open cells for use in molecular biology experiments that analyze the labile macromolecules of the cells (e.g. western blot for protein, or for DNA extraction). Most lysis buffers contain buffering salts (e.g. Tris-HCl) and ionic salts (e.g. NaCl) to r... |
https://en.wikipedia.org/wiki/Regular%20sequence | In commutative algebra, a regular sequence is a sequence of elements of a commutative ring which are as independent as possible, in a precise sense. This is the algebraic analogue of the geometric notion of a complete intersection.
Definitions
For a commutative ring R and an R-module M, an element r in R is called a ... |
https://en.wikipedia.org/wiki/Register%20machine | In mathematical logic and theoretical computer science, a register machine is a generic class of abstract machines used in a manner similar to a Turing machine. All the models are Turing equivalent.
Overview
The register machine gets its name from its use of one or more "registers". In contrast to the tape and head us... |
https://en.wikipedia.org/wiki/Maidenhead%20Locator%20System | The Maidenhead Locator System (a.k.a. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. Its purpose is to be concise, accurate, and robust in the face o... |
https://en.wikipedia.org/wiki/Sign%20function | In mathematics, the sign function or signum function (from signum, Latin for "sign") is a function that returns the sign of a real number. In mathematical notation the sign function is often represented as .
Definition
The signum function of a real number is a piecewise function which is defined as follows:
Properti... |
https://en.wikipedia.org/wiki/DNase%20footprinting%20assay | A DNase footprinting assay is a DNA footprinting technique from molecular biology/biochemistry that detects DNA-protein interaction using the fact that a protein bound to DNA will often protect that DNA from enzymatic cleavage. This makes it possible to locate a protein binding site on a particular DNA molecule. The me... |
https://en.wikipedia.org/wiki/HAKMEM | HAKMEM, alternatively known as AI Memo 239, is a February 1972 "memo" (technical report) of the MIT AI Lab containing a wide variety of hacks, including useful and clever algorithms for mathematical computation, some number theory and schematic diagrams for hardware – in Guy L. Steele's words, "a bizarre and eclectic p... |
https://en.wikipedia.org/wiki/Phosphodiester%20bond | In chemistry, a phosphodiester bond occurs when exactly two of the hydroxyl groups () in phosphoric acid react with hydroxyl groups on other molecules to form two ester bonds. The "bond" involves this linkage . Discussion of phosphodiesters is dominated by their prevalence in DNA and RNA, but phosphodiesters occur in ... |
https://en.wikipedia.org/wiki/Image%20segmentation | In digital image processing and computer vision, image segmentation is the process of partitioning a digital image into multiple image segments, also known as image regions or image objects (sets of pixels). The goal of segmentation is to simplify and/or change the representation of an image into something that is more... |
https://en.wikipedia.org/wiki/Particle%20velocity | Particle velocity (denoted or ) is the velocity of a particle (real or imagined) in a medium as it transmits a wave. The SI unit of particle velocity is the metre per second (m/s). In many cases this is a longitudinal wave of pressure as with sound, but it can also be a transverse wave as with the vibration of a taut ... |
https://en.wikipedia.org/wiki/Acoustic%20impedance | Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic pressure applied to the system. The SI unit of acoustic impedance is the pascal-second per cubic metre (), or in the MKS system the rayl per square metre (), while tha... |
https://en.wikipedia.org/wiki/Index%20of%20fractal-related%20articles | This is a list of fractal topics, by Wikipedia page, See also list of dynamical systems and differential equations topics.
1/f noise
Apollonian gasket
Attractor
Box-counting dimension
Cantor distribution
Cantor dust
Cantor function
Cantor set
Cantor space
Chaos theory
Coastline
Constructal theory
Dimension
Dimension t... |
https://en.wikipedia.org/wiki/Equivalent%20dose | Equivalent dose is a dose quantity H representing the stochastic health effects of low levels of ionizing radiation on the human body which represents the probability of radiation-induced cancer and genetic damage. It is derived from the physical quantity absorbed dose, but also takes into account the biological effe... |
https://en.wikipedia.org/wiki/Okazaki%20fragments | Okazaki fragments are short sequences of DNA nucleotides (approximately 150 to 200 base pairs long in eukaryotes) which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication. They were discovered in the 1960s by the Japanese molecular biol... |
https://en.wikipedia.org/wiki/List%20of%20noise%20topics | This is a list of noise topics.
Engineering and physics
1/f noise
A-weighting
Ambient noise level
Antenna noise temperature
Artificial noise
Audio noise reduction
Audio system measurements
Black noise
Blue noise
Burst noise
Carrier-to-receiver noise density
Channel noise level
Circuit noise level
Colors... |
https://en.wikipedia.org/wiki/Cryptosystem | In cryptography, a cryptosystem is a suite of cryptographic algorithms needed to implement a particular security service, such as confidentiality (encryption).
Typically, a cryptosystem consists of three algorithms: one for key generation, one for encryption, and one for decryption. The term cipher (sometimes cypher) ... |
https://en.wikipedia.org/wiki/Fluid%20power | Fluid power is the use of fluids under pressure to generate, control, and transmit power. Fluid power is conventionally subdivided into hydraulics (using a liquid such as mineral oil or water) and pneumatics (using a gas such as compressed air or other gases). Although steam is also a fluid, steam power is usually cl... |
https://en.wikipedia.org/wiki/Interesting%20number%20paradox | The interesting number paradox is a humorous paradox which arises from the attempt to classify every natural number as either "interesting" or "uninteresting". The paradox states that every natural number is interesting. The "proof" is by contradiction: if there exists a non-empty set of uninteresting natural numbers, ... |
https://en.wikipedia.org/wiki/Spectral%20theory | In mathematics, spectral theory is an inclusive term for theories extending the eigenvector and eigenvalue theory of a single square matrix to a much broader theory of the structure of operators in a variety of mathematical spaces. It is a result of studies of linear algebra and the solutions of systems of linear equat... |
https://en.wikipedia.org/wiki/Regular%20local%20ring | In commutative algebra, a regular local ring is a Noetherian local ring having the property that the minimal number of generators of its maximal ideal is equal to its Krull dimension. In symbols, let A be a Noetherian local ring with maximal ideal m, and suppose a1, ..., an is a minimal set of generators of m. Then by... |
https://en.wikipedia.org/wiki/Address%20space | In computing, an address space defines a range of discrete addresses, each of which may correspond to a network host, peripheral device, disk sector, a memory cell or other logical or physical entity.
For software programs to save and retrieve stored data, each datum must have an address where it can be located. The n... |
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