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https://en.wikipedia.org/wiki/Pool%20Registrar | In computing, a Pool Registrar (PR) is a component of the reliable server pooling (RSerPool) framework which manages a handlespace. PRs are also denoted as ENRP server or Name Server (NS).
The responsibilities of a PR are the following:
Register Pool Elements into a handlespace,
Deregister Pool Elements from a handl... |
https://en.wikipedia.org/wiki/Pool%20User | A Pool User (PU) is a client in the Reliable Server Pooling (RSerPool) framework.
In order to use the service provided by a pool, a PU has to proceed the following steps:
Ask a Pool Registrar for server selection (the Pool Registrar will return a list of servers, called Pool Elements),
Select one Pool Element, esta... |
https://en.wikipedia.org/wiki/Compaq%20Presario | Presario is a discontinued line of consumer desktop computers and notebooks originally produced by Compaq. The Presario family of computers was introduced in September 1993.
In the mid-1990s, Compaq began manufacturing PC monitors under the Presario brand. A series of all-in-one units, containing both the PC and the m... |
https://en.wikipedia.org/wiki/Flaming%20Gorge%20Dam | Flaming Gorge Dam is a concrete thin-arch dam on the Green River, a major tributary of the Colorado River, in northern Utah in the United States. Flaming Gorge Dam forms the Flaming Gorge Reservoir, which extends into southern Wyoming, submerging four distinct gorges of the Green River. The dam is a major component of... |
https://en.wikipedia.org/wiki/Lauricella%20hypergeometric%20series | In 1893 Giuseppe Lauricella defined and studied four hypergeometric series FA, FB, FC, FD of three variables. They are :
for |x1| + |x2| + |x3| < 1 and
for |x1| < 1, |x2| < 1, |x3| < 1 and
for |x1|½ + |x2|½ + |x3|½ < 1 and
for |x1| < 1, |x2| < 1, |x3| < 1. Here the Pochhammer symbol (q)i indicates the i-th rising f... |
https://en.wikipedia.org/wiki/Algebraic%20specification | Algebraic specification is a software engineering technique for formally specifying system behavior. It was a very active subject of computer science research around 1980.
Overview
Algebraic specification seeks to systematically develop more efficient programs by:
formally defining types of data, and mathematical op... |
https://en.wikipedia.org/wiki/Substrate%20coupling | In an integrated circuit, a signal can couple from one node to another via the substrate. This phenomenon is referred to as substrate coupling or substrate noise coupling.
The push for reduced cost, more compact circuit boards, and added customer features has provided
incentives for the inclusion of analog functions o... |
https://en.wikipedia.org/wiki/Half-power%20point | The half-power point is the point at which the output power has dropped to half of its peak value; that is, at a level of approximately -3 dB.
In filters, optical filters, and electronic amplifiers, the half-power point is also known as half-power bandwidth and is a commonly used definition for the cutoff frequency. ... |
https://en.wikipedia.org/wiki/Anti-Life%20Equation | The Anti-Life Equation is a fictional concept appearing in American comic books published by DC Comics. In Jack Kirby's Fourth World setting, the Anti-Life Equation is a formula for total control over the minds of sentient beings that is sought by Darkseid, who, for this reason, sends his forces to Earth, as he believe... |
https://en.wikipedia.org/wiki/Sony%20HDR-HC1 | The Sony HDR-HC1, introduced in mid-2005 (MSRP US$1999), is the first consumer HDV camcorder to support 1080i.
The CMOS sensor has resolution of 1920x1440 for digital still pictures and captures video at 1440x1080 interlaced, which is the resolution defined for HDV 1080i. The camera may also use the extra pixels for d... |
https://en.wikipedia.org/wiki/Laser%20capture%20microdissection | Laser capture microdissection (LCM), also called microdissection, laser microdissection (LMD), or laser-assisted microdissection (LMD or LAM), is a method for isolating specific cells of interest from microscopic regions of tissue/cells/organisms (dissection on a microscopic scale with the help of a laser).
Principle
... |
https://en.wikipedia.org/wiki/LaSalle%27s%20invariance%20principle | LaSalle's invariance principle (also known as the invariance principle, Barbashin-Krasovskii-LaSalle principle, or Krasovskii-LaSalle principle) is a criterion for the asymptotic stability of an autonomous (possibly nonlinear) dynamical system.
Global version
Suppose a system is represented as
where is the vect... |
https://en.wikipedia.org/wiki/IBM%20TPNS | Teleprocessing Network Simulator (TPNS) is an IBM licensed program, first released in 1976 as a test automation tool to simulate the end-user activity of network terminal(s) to a mainframe computer system, for functional testing, regression testing, system testing, capacity management, benchmarking and stress testing.
... |
https://en.wikipedia.org/wiki/Pakistan%20Atomic%20Energy%20Commission | Pakistan Atomic Energy Commission (PAEC) (Urdu: ) is a federally funded independent governmental agency, concerned with research and development of nuclear power, promotion of nuclear science, energy conservation and the peaceful usage of nuclear technology.
Since its establishment in 1956, the PAEC has overseen the e... |
https://en.wikipedia.org/wiki/FTPmail | FTPmail is the term used for the practice of using an FTPmail server to gain access to various files over the Internet. An FTPmail server is a proxy server which (asynchronously) connects to remote FTP servers in response to email requests, returning the downloaded files as an email attachment. This service might be ... |
https://en.wikipedia.org/wiki/Level%20sensor | Level sensors detect the level of liquids and other fluids and fluidized solids, including slurries, granular materials, and powders that exhibit an upper free surface. Substances that flow become essentially horizontal in their containers (or other physical boundaries) because of gravity whereas most bulk solids pile ... |
https://en.wikipedia.org/wiki/Perfect%20power | In mathematics, a perfect power is a natural number that is a product of equal natural factors, or, in other words, an integer that can be expressed as a square or a higher integer power of another integer greater than one. More formally, n is a perfect power if there exist natural numbers m > 1, and k > 1 such that mk... |
https://en.wikipedia.org/wiki/Fair%20queuing | Fair queuing is a family of scheduling algorithms used in some process and network schedulers. The algorithm is designed to achieve fairness when a limited resource is shared, for example to prevent flows with large packets or processes that generate small jobs from consuming more throughput or CPU time than other flow... |
https://en.wikipedia.org/wiki/Land%20use%2C%20land-use%20change%2C%20and%20forestry | Land use, land-use change, and forestry (LULUCF), also referred to as Forestry and other land use (FOLU) or Agriculture, Forestry and Other Land Use (AFOLU), is defined as a "greenhouse gas inventory sector that covers emissions and removals of greenhouse gases resulting from direct human-induced land use such as settl... |
https://en.wikipedia.org/wiki/White%20noise%20machine | A white noise machine is a device that produces a noise that calms the listener, which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose power rolls off... |
https://en.wikipedia.org/wiki/IBM%20LPFK | The Lighted Program Function Keyboard (LPFK) is a computer input device manufactured by IBM that presents an array of buttons associated with lights.
Each button is associated to a function in supporting software, and according to the availability of that function in current context of the application, the light is swi... |
https://en.wikipedia.org/wiki/Kaplansky%27s%20conjectures | The mathematician Irving Kaplansky is notable for proposing numerous conjectures in several branches of mathematics, including a list of ten conjectures on Hopf algebras. They are usually known as Kaplansky's conjectures.
Group rings
Let be a field, and a torsion-free group. Kaplansky's zero divisor conjecture state... |
https://en.wikipedia.org/wiki/Reflection%20formula | In mathematics, a reflection formula or reflection relation for a function f is a relationship between f(a − x) and f(x). It is a special case of a functional equation, and it is very common in the literature to use the term "functional equation" when "reflection formula" is meant.
Reflection formulas are useful for ... |
https://en.wikipedia.org/wiki/Relation%20construction | In logic and mathematics, relation construction and relational constructibility have to do with the ways that one relation is determined by an indexed family or a sequence of other relations, called the relation dataset. The relation in the focus of consideration is called the faciendum. The relation dataset typicall... |
https://en.wikipedia.org/wiki/Edwin%20J.%20Houston | Edwin James Houston (July 9, 1847 – March 1, 1914) was an American electrical engineer, academic, businessman, inventor and writer.
Biography
Houston was born July 9, 1847, to John Mason and Mary (Lamour) Houston in Alexandria, Virginia. He graduated from Central High School of Philadelphia (a degree-granting institu... |
https://en.wikipedia.org/wiki/Electroluminescent%20display | Electroluminescent Displays (ELDs) are a type of flat panel display created by sandwiching a layer of electroluminescent material such as Gallium arsenide between two layers of conductors. When current flows, the layer of material emits radiation in the form of visible light. Electroluminescence (EL) is an optical and ... |
https://en.wikipedia.org/wiki/Persistence%20length | The persistence length is a basic mechanical property quantifying the bending stiffness of a polymer.
The molecule behaves like a flexible elastic rod/beam (beam theory). Informally, for pieces of the polymer that are shorter than the persistence length, the molecule behaves like a rigid rod, while for pieces of the po... |
https://en.wikipedia.org/wiki/Colony-forming%20unit | In microbiology, colony-forming unit (CFU, cfu or Cfu) is a unit which estimates the number of microbial cells (bacteria, fungi, viruses etc.) in a sample that are viable, able to multiply via binary fission under the controlled conditions. Counting with colony-forming units requires culturing the microbes and counts o... |
https://en.wikipedia.org/wiki/ATSC%20tuner | An ATSC (Advanced Television Systems Committee) tuner, often called an ATSC receiver or HDTV tuner, is a type of television tuner that allows reception of digital television (DTV) television channels that use ATSC standards, as transmitted by television stations in North America, parts of Central America, and South Kor... |
https://en.wikipedia.org/wiki/Generalized%20polygon | In mathematics, a generalized polygon is an incidence structure introduced by Jacques Tits in 1959. Generalized n-gons encompass as special cases projective planes (generalized triangles, n = 3) and generalized quadrangles (n = 4). Many generalized polygons arise from groups of Lie type, but there are also exotic ones... |
https://en.wikipedia.org/wiki/Homotopy%20extension%20property | In mathematics, in the area of algebraic topology, the homotopy extension property indicates which homotopies defined on a subspace can be extended to a homotopy defined on a larger space. The homotopy extension property of cofibrations is dual to the homotopy lifting property that is used to define fibrations.
Defin... |
https://en.wikipedia.org/wiki/Shebang%20%28Unix%29 | In computing, a shebang is the character sequence consisting of the characters number sign and exclamation mark () at the beginning of a script. It is also called sharp-exclamation, sha-bang, hashbang, pound-bang, or hash-pling.
When a text file with a shebang is used as if it is an executable in a Unix-like operating... |
https://en.wikipedia.org/wiki/Resistor%20ladder | A resistor ladder is an electrical circuit made from repeating units of resistors, in specific configurations.
An R–2R ladder configuration is a simple and inexpensive way to perform digital-to-analog conversion (DAC), using repetitive arrangements of precise resistor networks in a ladder-like configuration. A string ... |
https://en.wikipedia.org/wiki/Advanced%20Resource%20Connector | Advanced Resource Connector (ARC) is a grid computing middleware introduced by NorduGrid. It provides a common interface for submission of computational tasks to different distributed computing systems and thus can enable grid infrastructures of varying size and complexity. The set of services and utilities providing t... |
https://en.wikipedia.org/wiki/T%20puzzle | The T puzzle is a tiling puzzle consisting of four polygonal shapes which can be put together to form a capital T. The four pieces are usually one isosceles right triangle, two right trapezoids and an irregular shaped pentagon.
Despite its apparent simplicity, it is a surprisingly hard puzzle of which the crux is the ... |
https://en.wikipedia.org/wiki/Reciprocal%20difference | In mathematics, the reciprocal difference of a finite sequence of numbers on a function is defined inductively by the following formulas:
See also
Divided differences
References
Finite differences |
https://en.wikipedia.org/wiki/Single-loss%20expectancy | Single-loss expectancy (SLE) is the monetary value expected from the occurrence of a risk on an asset. It is related to risk management and risk assessment.
Single-loss expectancy is mathematically expressed as:
Where the exposure factor is represented in the impact of the risk over the asset, or percentage of asset ... |
https://en.wikipedia.org/wiki/Thiele%27s%20interpolation%20formula | In mathematics, Thiele's interpolation formula is a formula that defines a rational function from a finite set of inputs and their function values . The problem of generating a function whose graph passes through a given set of function values is called interpolation. This interpolation formula is named after the Dan... |
https://en.wikipedia.org/wiki/Materialized%20view | In computing, a materialized view is a database object that contains the results of a query. For example, it may be a local copy of data located remotely, or may be a subset of the rows and/or columns of a table or join result, or may be a summary using an aggregate function.
The process of setting up a materialized v... |
https://en.wikipedia.org/wiki/Certified%20Quality%20Engineer | Certified Quality Engineer, often abbreviated CQE, is a certification given by the American Society for Quality (ASQ). These engineers are professionally educated in quality engineering and quality control.
They are trained in researching and preventing unnecessary costs through lack of quality, lost production costs,... |
https://en.wikipedia.org/wiki/Garbage%20%28computer%20science%29 | In computer science, garbage includes data, objects, or other regions of the memory of a computer system (or other system resources), which will not be used in any future computation by the system, or by a program running on it. Because every computer system has a finite amount of memory, and most software produces gar... |
https://en.wikipedia.org/wiki/Diode%20logic | Diode logic (or diode-resistor logic) constructs AND and OR logic gates with diodes and resistors.
An active device (vacuum tubes in early computers, then transistors in diode–transistor logic) is additionally required to provide logical inversion (NOT) for functional completeness and amplification for voltage level r... |
https://en.wikipedia.org/wiki/Method%20ringing | Method ringing (also known as scientific ringing) is a form of change ringing in which the ringers commit to memory the rules for generating each change of sequence, and pairs of bells are affected. This creates a form of bell music which is continually changing, but which cannot be discerned as a conventional melody. ... |
https://en.wikipedia.org/wiki/Densely%20packed%20decimal | Densely packed decimal (DPD) is an efficient method for binary encoding decimal digits.
The traditional system of binary encoding for decimal digits, known as binary-coded decimal (BCD), uses four bits to encode each digit, resulting in significant wastage of binary data bandwidth (since four bits can store 16 states ... |
https://en.wikipedia.org/wiki/Terrestrial%20locomotion | Terrestrial locomotion has evolved as animals adapted from aquatic to terrestrial environments. Locomotion on land raises different problems than that in water, with reduced friction being replaced by the increased effects of gravity.
As viewed from evolutionary taxonomy, there are three basic forms of animal locomoti... |
https://en.wikipedia.org/wiki/Professional%20audio | Professional audio, abbreviated as pro audio, refers to both an activity and a category of high-quality, studio-grade audio equipment. Typically it encompasses sound recording, sound reinforcement system setup and audio mixing, and studio music production by trained sound engineers, audio engineers, record producers, a... |
https://en.wikipedia.org/wiki/Institute%20of%20Professional%20Sound | The Institute of Professional Sound, previously the Institute of Broadcast Sound, is an organisation for audio professionals. The organisation provides opportunities for training and conferencing to assist in maintaining high standards in all areas of professional audio operations. The organisation is based in the UK.
... |
https://en.wikipedia.org/wiki/Thermus%20thermophilus | Thermus thermophilus is a Gram-negative bacterium used in a range of biotechnological applications, including as a model organism for genetic manipulation, structural genomics, and systems biology. The bacterium is extremely thermophilic, with an optimal growth temperature of about . Thermus thermophilus was originall... |
https://en.wikipedia.org/wiki/Pui%20Ching%20Invitational%20Mathematics%20Competition | Pui Ching Invitational Mathematics Competition (Traditional Chinese: 培正數學邀請賽), is held yearly by Pui Ching Middle School since 2002. It was formerly named as Pui Ching Middle School Invitational Mathematics Competition for the first three years. At present, more than 130 secondary schools send teams to participate in t... |
https://en.wikipedia.org/wiki/Project%20Kahu | Project Kahu was a major upgrade for the A-4K Skyhawk attack aircraft operated by the Royal New Zealand Air Force (RNZAF) in the mid-1980s. (The project was named after the Māori-language name for the New Zealand swamp harrier.)
History
In 1986, the RNZAF initiated this project to improve the capabilities of its Doug... |
https://en.wikipedia.org/wiki/Audio%20restoration | Audio restoration is the process of removing imperfections (such as hiss, impulse noise, crackle, wow and flutter, background noise, and mains hum) from sound recordings. Audio restoration can be performed directly on the recording medium (for example, washing a gramophone record with a cleansing solution), or on a d... |
https://en.wikipedia.org/wiki/Media%20processor | A media processor, mostly used as an image/video processor, is a microprocessor-based system-on-a-chip which is designed to deal with digital streaming data in real-time (e.g. display refresh) rates. These devices can also be considered a class of digital signal processors (DSPs).
Unlike graphics processing units (GPU... |
https://en.wikipedia.org/wiki/Unigine | UNIGINE is a proprietary cross-platform game engine developed by UNIGINE Company used in simulators, virtual reality systems, serious games and visualization. It supports OpenGL 4, Vulkan and DirectX 12.
UNIGINE Engine is a core technology for a lineup of benchmarks (CPU, GPU, power supply, cooling system), which are ... |
https://en.wikipedia.org/wiki/Track%20and%20trace | In the distribution and logistics of many types of products, track and trace or tracking and tracing concerns a process of determining the current and past locations (and other information) of a unique item or property. Mass serialization is the process that manufacturers go through to assign and mark each of their pro... |
https://en.wikipedia.org/wiki/Genotyping | Genotyping is the process of determining differences in the genetic make-up (genotype) of an individual by examining the individual's DNA sequence using biological assays and comparing it to another individual's sequence or a reference sequence. It reveals the alleles an individual has inherited from their parents. Tra... |
https://en.wikipedia.org/wiki/Maupertuis%27s%20principle | In classical mechanics, Maupertuis's principle (named after Pierre Louis Maupertuis) states that the path followed by a physical system is the one of least length (with a suitable interpretation of path and length). It is a special case of the more generally stated principle of least action. Using the calculus of var... |
https://en.wikipedia.org/wiki/Steering%20ratio | Steering ratio refers to the ratio between the turn of the steering wheel (in degrees) or handlebars and the turn of the wheels (in degrees).
The steering ratio is the ratio of the number of degrees of turn of the steering wheel to the number of degrees the wheel(s) turn as a result. In motorcycles, delta tricycles an... |
https://en.wikipedia.org/wiki/Referer%20spoofing | In HTTP networking, typically on the World Wide Web, referer spoofing (based on a canonised misspelling of "referrer") sends incorrect referer information in an HTTP request in order to prevent a website from obtaining accurate data on the identity of the web page previously visited by the user.
Overview
Referer spoof... |
https://en.wikipedia.org/wiki/X.3 | X.3 is an ITU-T standard indicating what functions are to be performed by a Packet Assembler/Disassembler (PAD) when connecting character-mode data terminal equipment (DTE), such as a computer terminal, to a packet switched network such as an X.25 network, and specifying the parameters that control this operation.
The... |
https://en.wikipedia.org/wiki/Noweb | Noweb, stylised in lowercase as noweb, is a literate programming tool, created in 1989–1999 by Norman Ramsey, and designed to be simple, easily extensible and language independent.
As in WEB and CWEB, the main components of Noweb are two programs: "notangle", which extracts 'machine' source code from the source texts,... |
https://en.wikipedia.org/wiki/Churchill%20Barriers | The Churchill Barriers are four causeways in the Orkney islands with a total length of . They link the Orkney Mainland in the north to the island of South Ronaldsay via Burray and the two smaller islands of Lamb Holm and Glimps Holm.
The barriers were built between May 1940 and September 1944, primarily as naval defe... |
https://en.wikipedia.org/wiki/Higgs%20sector | In particle physics, the Higgs sector is the collection of quantum fields and/or particles that are responsible for the Higgs mechanism, i.e. for the spontaneous symmetry breaking of the Higgs field. The word "sector" refers to a subgroup of the total set of fields and particles.
See also
Higgs boson
Hidden sector
... |
https://en.wikipedia.org/wiki/Recursion%20%28computer%20science%29 | In computer science, recursion is a method of solving a computational problem where the solution depends on solutions to smaller instances of the same problem. Recursion solves such recursive problems by using functions that call themselves from within their own code. The approach can be applied to many types of proble... |
https://en.wikipedia.org/wiki/Programming%20model | A programming model is an execution model coupled to an API or a particular pattern of code. In this style, there are actually two execution models in play: the execution model of the base programming language and the execution model of the programming model. An example is Spark where Java is the base language, and ... |
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