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A waterbody number , waterbody index number or waterbody ID is used for the hydrographic classification of waterbodies . Where classification only covers bodies of flowing water such as rivers, it may be called a watercourse number .
Many different systems are used in limnology to number waterbodies such as lakes, riv... | https://en.wikipedia.org/wiki/Waterbody_number |
The Waterborne Disease and Outbreak Surveillance System (WBDOSS) is a national surveillance system maintained by the U.S. Centers for Disease Control and Prevention (CDC) . The WBDOSS receives data about waterborne disease outbreaks and single cases of waterborne diseases of public health importance (for example, Prima... | https://en.wikipedia.org/wiki/Waterborne_Disease_and_Outbreak_Reporting_System |
Waterborne resins are sometimes called water-based resins. They are resins or polymeric resins that use water as the carrying medium as opposed to solvent or solvent-less. Resins are used in the production of coatings , adhesives , sealants , elastomers and composite materials . [ 1 ] [ 2 ] When the phrase waterborne r... | https://en.wikipedia.org/wiki/Waterborne_resins |
A water cut meter measures the water content (cut) of crude oil and hydrocarbons as they flow through a pipeline. While the title "Water cut" has been traditionally used, the current API naming is Water Cut Analyser or WCA as OWD or On-Line Water Determination is trademarked. The API and ISO committees have not yet ... | https://en.wikipedia.org/wiki/Watercut_meter |
The waterfall model is a breakdown of developmental activities into linear sequential phases, meaning that each phase is passed down onto each other, where each phase depends on the deliverables of the previous one and corresponds to a specialization of tasks. [ 1 ] This approach is typical for certain areas of enginee... | https://en.wikipedia.org/wiki/Waterfall_model |
Waterfall plots are often used to show how two-dimensional phenomena change over time. [ 1 ] A three-dimensional spectral waterfall plot is a plot in which multiple curves of data, typically spectra , are displayed simultaneously. Typically the curves are staggered both across the screen and vertically, with "nearer" c... | https://en.wikipedia.org/wiki/Waterfall_plot |
The Waterloopkundig Laboratorium ( Hydraulic Research Laboratory ) was an independent Dutch scientific institute specialising in hydraulics and hydraulic engineering . The laboratory was established in Delft from 1927, moving to a new location in the city in 1973. The institute later became known as WL | Delft Hydrauli... | https://en.wikipedia.org/wiki/Waterloopkundig_Laboratorium |
A watermaker is a device used to obtain potable water by reverse osmosis of seawater. In boating and yachting circles, desalinators are often referred to as "watermakers".
The devices can be expensive to acquire and maintain, but are quite valuable because they reduce the need for large water tanks for a long passage.... | https://en.wikipedia.org/wiki/Watermaker |
Waterproofing is the process of making an object, person or structure waterproof or water-resistant so that it remains relatively unaffected by water or resists the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths.
Water-resistant and waterproof ... | https://en.wikipedia.org/wiki/Waterproofing |
For watershed segmentation , a technique for image processing, see Watershed (image processing) .
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin , or river basin. It is an important step in many areas of environmental science, engineerin... | https://en.wikipedia.org/wiki/Watershed_delineation |
Watershed management is the study of the relevant characteristics of a watershed aimed at the sustainable distribution of its resources and the process of creating and implementing plans, programs and projects to sustain and enhance watershed functions that affect the plant , animal , and human communities within the w... | https://en.wikipedia.org/wiki/Watershed_management |
The water–cement ratio ( w/c ratio , or water-to-cement ratio , sometimes also called the Water-Cement Factor , f ) is the ratio of the mass of water ( w ) to the mass of cement ( c ) used in a concrete mix:
The typical values of this ratio f = w ⁄ c are generally comprised in the interval 0.40 and 0.60.
The water-ce... | https://en.wikipedia.org/wiki/Water–cement_ratio |
The water–gas shift reaction (WGSR) describes the reaction of carbon monoxide and water vapor to form carbon dioxide and hydrogen :
The water gas shift reaction was discovered by Italian physicist Felice Fontana in 1780. [ 1 ] [ 2 ] It was not until much later that the industrial value of this reaction was realized. B... | https://en.wikipedia.org/wiki/Water–gas_shift_reaction |
The Watt steam engine design was an invention of James Watt that became synonymous with steam engines during the Industrial Revolution , and it was many years before significantly new designs began to replace the basic Watt design.
The first steam engines , introduced by Thomas Newcomen in 1712, were of the "atmospher... | https://en.wikipedia.org/wiki/Watt_steam_engine |
Wattle and daub is a composite building method in which a woven lattice of wooden strips called " wattle " is "daubed" with a sticky material usually made of some combination of wet soil, clay, sand, and straw. Wattle and daub has been used for at least 6,000 years and is still an important construction method in many... | https://en.wikipedia.org/wiki/Wattle_and_daub |
Watts & Co. was a British publishing house which aimed to promote rationalism and secular education and "publish free thought books at affordable prices". [ 1 ] The firm had a close relationship with the Rationalist Press Association (later known as the Rationalist Association) and many of books it published were impri... | https://en.wikipedia.org/wiki/Watts_&_Co._(publishing_firm) |
The reflected binary code ( RBC ), also known as reflected binary ( RB ) or Gray code after Frank Gray , is an ordering of the binary numeral system such that two successive values differ in only one bit (binary digit).
For example, the representation of the decimal value "1" in binary would normally be " 001 ", and "... | https://en.wikipedia.org/wiki/Watts_code |
In physics , mathematics , engineering , and related fields, a wave is a propagating dynamic disturbance (change from equilibrium ) of one or more quantities . Periodic waves oscillate repeatedly about an equilibrium (resting) value at some frequency . When the entire waveform moves in one direction, it is said to be a... | https://en.wikipedia.org/wiki/Wave |
Wave-making resistance or wave resistance is a form of drag that affects any object moving on a surface of a fluid, such as boats and ships moving on the surface of water, and reflects the energy required to push the water out of the way of that body. For example, the hull of a moving watercraft creates waves (a wake )... | https://en.wikipedia.org/wiki/Wave-making_resistance |
In mathematical analysis , more precisely in microlocal analysis , the wave front (set) WF( f ) characterizes the singularities of a generalized function f , not only in space , but also with respect to its Fourier transform at each point. The term "wave front" was coined by Lars Hörmander around 1970.
In more familia... | https://en.wikipedia.org/wiki/Wave_front_set |
In mathematical physics, the wave maps equation is a geometric wave equation that solves
where D {\displaystyle D} is a connection . [ 1 ] [ 2 ]
It can be considered a natural extension of the wave equation for Riemannian manifolds . [ 3 ]
This applied mathematics –related article is a stub . You can help Wikipedia ... | https://en.wikipedia.org/wiki/Wave_maps_equation |
In fluid dynamics , the wave method (WM) , or wave characteristic method (WCM) , is a model describing unsteady flow of fluids in conduits (pipes).
The wave method is based on the physically accurate concept that transient pipe flow occurs as a result of pressure waves generated and propagated from a disturbance in th... | https://en.wikipedia.org/wiki/Wave_method |
Wave overtopping is the time-averaged amount of water that is discharged (in liters per second) per structure length (in meters) by waves over a structure such as a breakwater , revetment or dike which has a crest height above still water level.
When waves break over a dike, it causes water to flow onto the land behin... | https://en.wikipedia.org/wiki/Wave_overtopping |
In physics , a wave packet (also known as a wave train or wave group ) is a short burst of localized wave action that travels as a unit, outlined by an envelope . A wave packet can be analyzed into, or can be synthesized from, a potentially-infinite set of component sinusoidal waves of different wavenumbers , with phas... | https://en.wikipedia.org/wiki/Wave_packet |
Wave run-up is the height to which waves run up the slope of a revetment , bank or dike , regardless of whether the waves are breaking or not. Conversely, wave run-down is the height to which waves recede. These heights are always measured vertically (and not along the slope). The wave run-up height, denoted by R u {\d... | https://en.wikipedia.org/wiki/Wave_run-up |
In fluid dynamics , a wind wave , or wind-generated water wave , is a surface wave that occurs on the free surface of bodies of water as a result of the wind blowing over the water's surface. The contact distance in the direction of the wind is known as the fetch . Waves in the oceans can travel thousands of kilometers... | https://en.wikipedia.org/wiki/Wave_spectrum |
A wave tank is a laboratory setup for observing the behavior of surface waves . The typical wave tank is a box filled with liquid , usually water , leaving open or air -filled space on top. At one end of the tank, an actuator generates waves; the other end usually has a wave-absorbing surface. [ 1 ] A similar device is... | https://en.wikipedia.org/wiki/Wave_tank |
A waveguide is a structure that guides waves by restricting the transmission of energy to one direction. Common types of waveguides include acoustic waveguides which direct sound , optical waveguides which direct light , and radio-frequency waveguides which direct electromagnetic waves other than light like radio waves... | https://en.wikipedia.org/wiki/Waveguide |
In radio-frequency engineering and communications engineering , a waveguide is a hollow metal pipe used to carry radio waves . [ 1 ] This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas , in equipmen... | https://en.wikipedia.org/wiki/Waveguide_(radio_frequency) |
In the physical sciences , the wavenumber (or wave number ), also known as repetency , [ 1 ] is the spatial frequency of a wave . Ordinary wavenumber is defined as the number of wave cycles divided by length; it is a physical quantity with dimension of reciprocal length , expressed in SI units of cycles per metre or re... | https://en.wikipedia.org/wiki/Wavenumber |
A waverider is a hypersonic aircraft design that improves its supersonic lift-to-drag ratio by using the shock waves being generated by its own flight as a lifting surface, a phenomenon known as compression lift .
The waverider remains a well-studied design for high-speed aircraft in the Mach 5 and higher hypersonic r... | https://en.wikipedia.org/wiki/Waverider |
Waviness is the measurement of the more widely spaced component of surface texture . It is a broader view of roughness because it is more strictly defined as "the irregularities whose spacing is greater than the roughness sampling length". It can occur from machine or work deflections , chatter, residual stress , vibra... | https://en.wikipedia.org/wiki/Waviness |
Waxes are a diverse class of organic compounds that are lipophilic , malleable solids near ambient temperatures. They include higher alkanes and lipids , typically with melting points above about 40 °C (104 °F), melting to give low viscosity liquids. Waxes are insoluble in water but soluble in nonpolar organic solvent... | https://en.wikipedia.org/wiki/Wax |
The wax argument or the sheet of wax example is a thought experiment that René Descartes created in the second of his Meditations on First Philosophy . He devised it to analyze what properties are essential for bodies, show how uncertain our knowledge of the world is compared to our knowledge of our minds, and argue fo... | https://en.wikipedia.org/wiki/Wax_argument |
Wax emulsion s are stable mixtures of one or more waxes in water . Waxes and water are normally immiscible but can be brought together stably by the use of surfactants and a clever preparation process. Strictly speaking a wax emulsion should be called a wax dispersion since the wax is solid at room temperature. However... | https://en.wikipedia.org/wiki/Wax_emulsion |
The Waxman-Bahcall bound is a computed upper limit on the observed flux of high energy neutrinos based on the observed flux of high energy cosmic rays . Since the highest energy neutrinos are produced from interactions of utlra-high-energy cosmic rays, the observed rate of production of the latter places a limit on the... | https://en.wikipedia.org/wiki/Waxman-Bahcall_bound |
Wayfinder was a wholly owned subsidiary of Vodafone [ 2 ] specializing in creating mobile navigation systems for a number of platforms such as Symbian 2nd and 3rd edition, UIQ, Windows Mobile and some other smartphones . An external Bluetooth GPS receiver is required for non GPS enabled phones. On March 12, 2010, it wa... | https://en.wikipedia.org/wiki/Wayfinder |
Wayfinding (or way-finding ) encompasses all of the ways in which people (and animals) orient themselves in physical space and navigate from place to place. Wayfinding software is a self-service computer program that helps users to find a location, usually used indoors and installed on interactive kiosks or smartphones... | https://en.wikipedia.org/wiki/Wayfinding_software |
Wayne Wesolowski is a builder of miniature models. [ 1 ]
Wesolowski's models have been exhibited at the Chicago Museum of Science and Industry , [ 2 ] the Springfield, Illinois, Lincoln Home Site, [ 3 ] the West Chicago City Museum, the Batavia Depot Museum, and the National Railroad Museum . [ 4 ]
One of his more no... | https://en.wikipedia.org/wiki/Wayne_Wesolowski |
WeNMR is a worldwide e-Infrastructure for NMR spectroscopy and structural biology . It is the largest virtual Organization in the life sciences and is supported by EGI .
WeNMR aims at bringing together complementary research teams in the structural biology and life science area into a virtual research community at a w... | https://en.wikipedia.org/wiki/WeNMR |
The Weak-Link Approach (WLA) is a supramolecular coordination-based assembly methodology, first introduced in 1998 by the Mirkin Group at Northwestern University . [ 1 ] This method takes advantage of hemilabile ligands -ligands that contain both strong and weak binding moieties- that can coordinate to metal centers an... | https://en.wikipedia.org/wiki/Weak-Link_Approach |
Affinity chromatography is a method of separating a biomolecule from a mixture, based on a highly specific macromolecular binding interaction between the biomolecule and another substance. The specific type of binding interaction depends on the biomolecule of interest; antigen and antibody , enzyme and substrate , rec... | https://en.wikipedia.org/wiki/Weak_affinity_chromatography |
In nuclear physics and atomic physics , weak charge , or rarely neutral weak charge , refers to the Standard Model weak interaction coupling of a particle to the Z boson . For example, for any given nuclear isotope, the total weak charge is approximately −0.99 per neutron , and +0.07 per proton . [ 1 ] It also shows an... | https://en.wikipedia.org/wiki/Weak_charge |
The term weak continuum hypothesis can be used to refer to the hypothesis that 2 ℵ 0 < 2 ℵ 1 {\displaystyle 2^{\aleph _{0}}<2^{\aleph _{1}}} , which is the negation of the second continuum hypothesis . [ 1 ] : 80 [ 2 ] : Lecture 7 [ 3 ] : 3616 It is equivalent to a weak form of ◊ on ℵ 1 {\displaystyle \aleph _{1}} . [ ... | https://en.wikipedia.org/wiki/Weak_continuum_hypothesis |
In the Standard Model of electroweak interactions of particle physics , the weak hypercharge is a quantum number relating the electric charge and the third component of weak isospin . It is frequently denoted Y W {\displaystyle Y_{\mathsf {W}}} and corresponds to the gauge symmetry U(1) . [ 1 ] [ 2 ]
It is conserved (... | https://en.wikipedia.org/wiki/Weak_hypercharge |
In mathematical logic , weak interpretability is a notion of translation of logical theories, introduced together with interpretability by Alfred Tarski in 1953.
Let T and S be formal theories . Slightly simplified, T is said to be weakly interpretable in S if, and only if, the language of T can be translated into th... | https://en.wikipedia.org/wiki/Weak_interpretability |
Weak localization is a physical effect which occurs in disordered electronic systems at very low temperatures. The effect manifests itself as a positive correction to the resistivity of a metal or semiconductor . [ 1 ] The name emphasizes the fact that weak localization is a precursor of Anderson localization , which o... | https://en.wikipedia.org/wiki/Weak_localization |
All definitions tacitly require the homogeneous relation R {\displaystyle R} be transitive : for all a , b , c , {\displaystyle a,b,c,} if a R b {\displaystyle aRb} and b R c {\displaystyle bRc} then a R c . {\displaystyle aRc.} A term's definition may require additional properties that are not listed in this table.
I... | https://en.wikipedia.org/wiki/Weak_ordering |
In chemistry , a salt or ionic compound is a chemical compound consisting of an assembly of positively charged ions ( cations ) and negatively charged ions ( anions ), [ 1 ] which results in a compound with no net electric charge (electrically neutral). The constituent ions are held together by electrostatic forces ter... | https://en.wikipedia.org/wiki/Weak_salt |
Weak selection in evolutionary biology is when individuals with different phenotypes possess similar fitness , i.e. one phenotype is weakly preferred over the other. Weak selection, therefore, is an evolutionary theory to explain the maintenance of multiple phenotypes in a stable population. [ 1 ]
Weak selection can ... | https://en.wikipedia.org/wiki/Weak_selection |
In mathematics , a weak solution (also called a generalized solution ) to an ordinary or partial differential equation is a function for which the derivatives may not all exist but which is nonetheless deemed to satisfy the equation in some precisely defined sense. There are many different definitions of weak solution... | https://en.wikipedia.org/wiki/Weak_solution |
Weak stability boundary (WSB), including low-energy transfer , is a concept introduced by Edward Belbruno in 1987. The concept explained how a spacecraft could change orbits using very little fuel.
Weak stability boundary is defined for the three-body problem . This problem considers the motion of a particle P of negl... | https://en.wikipedia.org/wiki/Weak_stability_boundary |
In mathematics , weak topology is an alternative term for certain initial topologies , often on topological vector spaces or spaces of linear operators , for instance on a Hilbert space . The term is most commonly used for the initial topology of a topological vector space (such as a normed vector space ) with respect ... | https://en.wikipedia.org/wiki/Weak_topology |
Predicate transformer semantics were introduced by Edsger Dijkstra in his seminal paper " Guarded commands, nondeterminacy and formal derivation of programs ". They define the semantics of an imperative programming paradigm by assigning to each statement in this language a corresponding predicate transformer : a total ... | https://en.wikipedia.org/wiki/Weakest_precondition |
A weakless universe is a hypothetical universe that contains no weak interactions , but is otherwise very similar to our own universe.
In particular, a weakless universe is constructed to have atomic physics and chemistry identical to standard atomic physics and chemistry. The dynamics of a weakless universe includes ... | https://en.wikipedia.org/wiki/Weakless_universe |
In mathematics , a topological space is said to be weakly contractible if all of its homotopy groups are trivial.
It follows from Whitehead's Theorem that if a CW-complex is weakly contractible then it is contractible .
Define S ∞ {\displaystyle S^{\infty }} to be the inductive limit of the spheres S n , n ≥ 1 {\disp... | https://en.wikipedia.org/wiki/Weakly_contractible |
In model theory , a weakly o-minimal structure is a model-theoretic structure whose definable sets in the domain are just finite unions of convex sets .
A linearly ordered structure, M , with language L including an ordering relation <, is called weakly o-minimal if every parametrically definable subset of M is a fini... | https://en.wikipedia.org/wiki/Weakly_o-minimal_structure |
In mathematics , a weakly symmetric space is a notion introduced by the Norwegian mathematician Atle Selberg in the 1950s as a generalisation of symmetric space , due to Élie Cartan . Geometrically the spaces are defined as complete Riemannian manifolds such that any two points can be exchanged by an isometry , the sym... | https://en.wikipedia.org/wiki/Weakly_symmetric_space |
The Wealden iron industry was located in the Weald of south-eastern England . It was formerly an important industry, producing a large proportion of the bar iron made in England in the 16th century and most British cannon until about 1770. Ironmaking in the Weald used ironstone from various clay beds, and was fuelled... | https://en.wikipedia.org/wiki/Wealden_iron_industry |
Wear is the damaging, gradual removal or deformation of material at solid surfaces . Causes of wear can be mechanical (e.g., erosion ) or chemical (e.g., corrosion ). The study of wear and related processes is referred to as tribology .
Wear in machine elements , together with other processes such as fatigue and creep... | https://en.wikipedia.org/wiki/Wear |
Wear OS [ a ] , formerly Android Wear , [ 9 ] is a closed-source Android distribution designed for smartwatches and other wearable computers, [ 10 ] [ 11 ] [ 12 ] developed by Google . [ 2 ] [ 3 ] Wear OS is designed to pair with mobile phones running Android ( version 6.0 "Marshmallow" or newer) or iOS (version 10.0 o... | https://en.wikipedia.org/wiki/Wear_OS |
The wear coefficient is a physical coefficient used to measure, characterize and correlate the wear of materials.
Traditionally, the wear of materials has been characterized by weight loss and wear rate. However, studies have found that wear coefficient is more suitable. The reason being that it takes the wear rate, t... | https://en.wikipedia.org/wiki/Wear_coefficient |
Weather pains , weather-related pain , or meteoropathy is a phenomenon that occurs when people with conditions such as arthritis or limb injuries claim to feel pain, particularly with changes in barometric pressure , humidity or other weather phenomena. Scientific evidence , however, does not support a connection betwe... | https://en.wikipedia.org/wiki/Weather_pains |
Accelerated photo-ageing of polymers in SEPAP units is the controlled polymer degradation and polymer coating degradation under lab or natural conditions.
The prediction of the ageing of plastic materials is a subject that concerns both users and manufacturers. It covers plastic materials (polymers, fillers and variou... | https://en.wikipedia.org/wiki/Weather_testing_of_polymers |
Weatherization ( American English ) or weatherproofing ( British English ) is the practice of protecting a building and its interior from the elements, particularly from sunlight , precipitation , and wind , and of modifying a building to reduce energy consumption and optimize energy efficiency .
Weatherization is dis... | https://en.wikipedia.org/wiki/Weatherization |
Weatherstripping is the process of sealing openings such as doors, windows, and trunks from the waters above. The term can also refer to the materials used to carry out such sealing processes. The goal of weatherstripping is to prevent rain and water from entering entirely or partially and accomplishes this by either r... | https://en.wikipedia.org/wiki/Weatherstripping |
Web Compatibility Test for Mobile Browsers, often called the Mobile Acid test, [ 1 ] despite not being a true Acid test , [ 2 ] is a test page published and promoted by the World Wide Web Consortium (W3C) to expose web page rendering flaws in mobile web browsers and other applications that render HTML . [ 3 ] It was de... | https://en.wikipedia.org/wiki/Web_Compatibility_Test_for_Mobile_Browsers |
Web Services for Devices or Web Services on Devices ( WSD ) is a Microsoft API to enable programming connections to web service enabled devices, such as printers, scanners and file shares. [ 1 ] Such devices conform to the Devices Profile for Web Services (DPWS). It is an extensible framework that serves as a replaceme... | https://en.wikipedia.org/wiki/Web_Services_for_Devices |
Web badges , buttons or stickers are small images on web pages , typically part of the footer . They can be used for promotion, stating compliance with web standards or to comply with an application's terms of service . [ 1 ] They are sometimes referred to as 88x31 or 80x15 , common image resolutions for web buttons.
... | https://en.wikipedia.org/wiki/Web_badge |
A web hosting control panel is a web-based interface provided by a web hosting service that allows users to manage their servers and hosted services. Examples include cPanel , Plesk , ispmanager, My20i, CloudPanel, OpenPanel, and Enhance. For more examples, see comparison of web hosting control panels .
Web hosting co... | https://en.wikipedia.org/wiki/Web_hosting_control_panel |
Web operations ( WebOps ) is a domain of expertise within IT systems management that involves the deployment, operation, maintenance, tuning, and repair of web-based applications and systems. [ 1 ] WebOps is also increasingly acknowledged as crucial to the success of digital marketing teams, and shows up as part of the... | https://en.wikipedia.org/wiki/Web_operations |
Webcomics (also known as online comics or Internet comics ) are comics published on the internet, such as on a website or a mobile app . While many webcomics are published exclusively online, others are also published in magazines , newspapers , or comic books .
Webcomics can be compared to self-published print comics ... | https://en.wikipedia.org/wiki/Webcomic |
The Weber number ( We ) is a dimensionless number in fluid mechanics that is often useful in analysing fluid flows where there is an interface between two different fluids, especially for multiphase flows with strongly curved surfaces. [ 1 ] It is named after Moritz Weber (1871–1951). [ 2 ] It can be thought of as a me... | https://en.wikipedia.org/wiki/Weber_number |
In geometry , the Weber problem , named after Alfred Weber , is one of the most famous problems in location theory . It requires finding a point in the plane that minimizes the sum of the transportation costs from this point to n destination points, where different destination points are associated with different costs... | https://en.wikipedia.org/wiki/Weber_problem |
In web development , a webhook is a method of augmenting or altering the behavior of a web page or web application with custom callbacks . These callbacks may be maintained, modified, and managed by third-party users who need not be affiliated with the originating website or application. In 2007, Jeff Lindsay coined th... | https://en.wikipedia.org/wiki/Webhook |
webinos (Secure WebOS Application Environment) is a computing platform for the development of software components that are independent of the utilized computer hardware or operating system . At the same time, webinos is the name of the EU-funded project aiming to deliver this platform.
The webinos platform is based on ... | https://en.wikipedia.org/wiki/Webinos |
Read the Wiktionary entry "webmaster"
You can also: | https://en.wikipedia.org/wiki/Webmaster |
A webnovela or foronovela is a phenomenon in Latin American and European countries like Argentina , Brazil , Chile , Colombia , Czech Republic , Dominican Republic , Estonia , Mexico , Peru , Poland , Puerto Rico , Romania , Russia , Serbia , Slovakia , Spain , Uruguay and Venezuela among others. The term "webnovela", ... | https://en.wikipedia.org/wiki/Webnovela |
A Website content writer or web content writer is a person who specializes in providing content for websites . Every website has a specific target audience and requires the most relevant content to attract business. Content should contain keywords (specific business-related terms, which internet users might use in ord... | https://en.wikipedia.org/wiki/Website_content_writer |
The Webster's test is a qualitative urine test used to detect the presence of trinitrotoluene and its metabolites . [ 1 ] The test was developed in 1917 by T. A. Webster [ 2 ] [ 3 ] in London as a way to test for trinitrotoluene poisoning. A positive test results in a purple color for the acidified urine samples.
Thi... | https://en.wikipedia.org/wiki/Webster's_test |
Webtag [ 1 ] is an on-line bioinformatics tool providing oligonucleotide sequences (usually called tags or anchors) that are absent from a specified genome . These tags can be appended to gene specific primers for reverse transcriptase polymerase chain reaction ( RT-PCR ) experiments, circumventing genomic DNA contamin... | https://en.wikipedia.org/wiki/Webtag |
Webwereld was a Dutch online newspaper about IT by the International Data Group . It was the oldest Dutch technology website until it was discontinued in 2020. [ 1 ]
Webwereld was founded in 1995 by Oscar Kneppers, who got the idea after visiting Silicon Valley in the summer of that year. [ 1 ] Another Dutch tech webs... | https://en.wikipedia.org/wiki/Webwereld |
A wedge is a triangular shaped tool , a portable inclined plane , and one of the six simple machines . It can be used to separate two objects or portions of an object, lift up an object, or hold an object in place. It functions by converting a force applied to its blunt end into forces perpendicular ( normal ) to its i... | https://en.wikipedia.org/wiki/Wedge |
In topology , the wedge sum is a "one-point union" of a family of topological spaces . Specifically, if X and Y are pointed spaces (i.e. topological spaces with distinguished basepoints x 0 {\displaystyle x_{0}} and y 0 {\displaystyle y_{0}} ) the wedge sum of X and Y is the quotient space of the disjoint union of X an... | https://en.wikipedia.org/wiki/Wedge_sum |
Weed science is a scientific discipline concerned with plants that may be considered weeds , their effects on human activities, and their management [ 1 ] "a branch of applied ecology that attempts to modify the environment against natural evolutionary trends.". [ 2 ]
Weeds have existed since humans began settled agri... | https://en.wikipedia.org/wiki/Weed_science |
Weerman degradation , also named Weerman reaction , is a name reaction in organic chemistry . It is named after Rudolf Adrian Weerman , who discovered it in 1910. [ 1 ] In general, it is an organic reaction in carbohydrate chemistry in which amides are degraded by sodium hypochlorite , forming an aldehyde with one less... | https://en.wikipedia.org/wiki/Weerman_degradation |
Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene . It is a subdivision of the peridotites .
The nomenclature allows up to a few percent of orthopyroxene . Accessory minerals include ilmenite , chromite , magnetite and an aluminium-bearing mineral ( plagioclase , spinel or ga... | https://en.wikipedia.org/wiki/Wehrlite |
Wei-Shou Hu (born November 5, 1951) is a Taiwanese-American chemical engineer. He is currently the Distinguished McKnight University Professor of Chemical Engineering and Material Science at the University of Minnesota .
Hu earned his B.S. in agricultural chemistry from National Taiwan University in 1974 and his Ph.D.... | https://en.wikipedia.org/wiki/Wei-Shou_Hu |
Wei-Ta Fang ( Chinese : 方偉達 ; pinyin : Fāng Wěidá ) is a Taiwanese wetland scientist and environmental educator, a distinguished professor, vice dean of the College of Science, and the director of the Graduate Institute of Sustainability Management and Environmental Education, National Taiwan Normal University . [ 1 ]... | https://en.wikipedia.org/wiki/Wei-Ta_Fang |
The Weibel instability is a plasma instability present in homogeneous or nearly homogeneous electromagnetic plasmas which possess an anisotropy in momentum (velocity) space. This anisotropy is most generally understood as two temperatures in different directions. Burton Fried showed that this instability can be under... | https://en.wikipedia.org/wiki/Weibel_instability |
The Weibull modulus is a dimensionless parameter of the Weibull distribution . It represents the width of a probability density function (PDF) in which a higher modulus is a characteristic of a narrower distribution of values. Use case examples include biological and brittle material failure analysis , where modulus is... | https://en.wikipedia.org/wiki/Weibull_modulus |
In mathematics , the Weierstrass M-test is a test for determining whether an infinite series of functions converges uniformly and absolutely . It applies to series whose terms are bounded functions with real or complex values, and is analogous to the comparison test for determining the convergence of series of real or ... | https://en.wikipedia.org/wiki/Weierstrass_M-test |
In mathematics, the Weierstrass Nullstellensatz is a version of the intermediate value theorem over a real closed field . It says: [ 1 ] [ 2 ]
Since F is real-closed, F ( i ) is algebraically closed, hence f ( x ) can be written as u ∏ i ( x − α i ) {\displaystyle u\prod _{i}(x-\alpha _{i})} , where u ∈ F {\displaysty... | https://en.wikipedia.org/wiki/Weierstrass_Nullstellensatz |
In mathematics , the Weierstrass product inequality states that for any real numbers 0 ≤ x 1 , ..., x n ≤ 1 we have
and similarly, for 0 ≤ x 1 , ..., x n ,
where S n = x 1 + x 2 + x 3 + x 4 + . . . . + x n . {\displaystyle S_{n}=x_{1}+x_{2}+x_{3}+x_{4}+....+x_{n}.}
The inequality is named after the German mathematic... | https://en.wikipedia.org/wiki/Weierstrass_product_inequality |
The Weigert-Meyer Rule is a concept in urology and radiology that describes the anatomic relationship of two ureters in a duplicated renal collecting system, as well as the resulting patterns of hydronephrosis , obstruction, and reflux. [ 1 ]
In most cases, the upper renal moiety drains to the more medial ureteral ori... | https://en.wikipedia.org/wiki/Weigert-Meyer_Law |
In mathematics , a weighing matrix of order n {\displaystyle n} and weight w {\displaystyle w} is a matrix W {\displaystyle W} with entries from the set { 0 , 1 , − 1 } {\displaystyle \{0,1,-1\}} such that:
Where W T {\displaystyle W^{\mathsf {T}}} is the transpose of W {\displaystyle W} and I n {\displaystyle I_{n}} ... | https://en.wikipedia.org/wiki/Weighing_matrix |
Weight distribution is the apportioning of weight within a vehicle , especially cars , airplanes , and trains . Typically, it is written in the form x / y , where x is the percentage of weight in the front, and y is the percentage in the back.
In a vehicle which relies on gravity in some way, weight distribution direc... | https://en.wikipedia.org/wiki/Weight_distribution |
A weight function is a mathematical device used when performing a sum, integral, or average to give some elements more "weight" or influence on the result than other elements in the same set. The result of this application of a weight function is a weighted sum or weighted average . Weight functions occur frequently in... | https://en.wikipedia.org/wiki/Weight_function |
A weight machine is an exercise machine used for weight training that uses gravity as the primary source of resistance and a combination of simple machines to convey that resistance to the person using the machine. Each of the simple machines (pulley, lever, wheel, incline) changes the mechanical advantage of the overa... | https://en.wikipedia.org/wiki/Weight_machine |
Weight transfer and load transfer are two expressions used somewhat confusingly to describe two distinct effects: [ 1 ]
In the automobile industry, weight transfer customarily refers to the change in load borne by different wheels during acceleration. [ 2 ] This would be more properly referred to as load transfer , [ ... | https://en.wikipedia.org/wiki/Weight_transfer |
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