text stringlengths 11 320k | source stringlengths 26 161 |
|---|---|
Tungsten(VI) oxide , also known as tungsten trioxide is a chemical compound of oxygen and the transition metal tungsten , with formula WO 3 . The compound is also called tungstic anhydride , reflecting its relation to tungstic acid H 2 WO 4 . It is a light yellow crystalline solid. [ 1 ]
Tungsten(VI) oxide occurs na... | https://en.wikipedia.org/wiki/WO3 |
Tungsten(VI) oxytetrachloride is the inorganic compound with the formula W O Cl 4 . This diamagnetic solid is used to prepare other complexes of tungsten . The red crystalline compound is soluble in nonpolar solvents but it reacts with alcohols and water and forms adducts with Lewis bases . [ citation needed ] [ clarif... | https://en.wikipedia.org/wiki/WOCl4 |
WORHP ( / w ɔːr p / "warp", an acronym for "We Optimize Really Huge Problems"), also referred to as eNLP (European NLP solver) by ESA , is a mathematical software library for numerically solving large scale continuous nonlinear optimization problems.
WORHP is a hybrid Fortran and C implementation and can be used from ... | https://en.wikipedia.org/wiki/WORHP |
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/WRD_(code) |
WRF-SFIRE is a coupled atmosphere - wildfire model, which combines the Weather Research and Forecasting Model (WRF) with a fire-spread model, implemented by the level-set method . A version from 2010 was released based on the WRF 3.2 as WRF-Fire .
This computational physics -related article is a stub . You can help Wi... | https://en.wikipedia.org/wiki/WRF-SFIRE |
Web Service Atomic Transaction is an OASIS standard.
To achieve all-or-nothing property for a group of services, it defines three protocols (completion, volatile two-phase commit , and durable two-phase commit), and a set of services. These protocols and services together ensure automatic activation, registration, pro... | https://en.wikipedia.org/wiki/WS-Atomic_Transaction |
WS-Management ( Web Services-Management ) is a DMTF open standard defining a SOAP -based protocol for the management of servers, devices, applications and various Web services. WS-Management provides a common way for systems to access and exchange management information across the IT infrastructure .
The specification... | https://en.wikipedia.org/wiki/WS-Management |
WSO2 Carbon [ 1 ] is the core platform on which WSO2 middleware products are built. It is based on Java OSGi technology, which allows components to be dynamically installed, started, stopped, updated, and uninstalled, and it eliminates component version conflicts. In Carbon, this capability translates into a solid core... | https://en.wikipedia.org/wiki/WSO2_Carbon |
The WSSUS ( Wide-Sense Stationary Uncorrelated Scattering ) model provides a statistical description of the transmission behavior of wireless channels . "Wide-sense stationarity " means the second-order moments of the channel are stationary, which means that they depends only on the time difference, while "uncorrelate... | https://en.wikipedia.org/wiki/WSSUS_model |
Tungsten diselenide is an inorganic compound with the formula WSe 2 . [ 6 ] The compound adopts a hexagonal crystalline structure similar to molybdenum disulfide . The tungsten atoms are covalently bonded to six selenium ligands in a trigonal prismatic coordination sphere while each selenium is bonded to three tungsten... | https://en.wikipedia.org/wiki/WSe2 |
WT1190F ( 9U01FF6 , UDA34A3 , or UW8551D ) was a small temporary satellite of Earth that impacted Earth on 13 November 2015 at 06:18:21.7 (± 0.1 seconds) UTC . [ 4 ] : 7–8 It is thought to have been space debris from the trans-lunar injection stage of the 1998 Lunar Prospector mission. [ 5 ] [ 6 ] It was first discover... | https://en.wikipedia.org/wiki/WT1190F |
Tungsten ditelluride ( W Te 2 ) is an inorganic semimetallic chemical compound . In October 2014, tungsten ditelluride was discovered to exhibit an extremely large magnetoresistance : 13 million percent resistance increase in a magnetic field of 60 tesla at 0.5 kelvin. [ 3 ] The resistance is proportional to the square... | https://en.wikipedia.org/wiki/WTe2 |
The W Window System , or simply W , is a discontinued windowing system and precursor, in name and concept, to the modern X Window System .
W was originally developed at Stanford University by Paul Asente and Brian Reid for the V operating system . In 1983, Paul Asente and Chris Kent ported the system to UNIX on the VS... | https://en.wikipedia.org/wiki/W_Window_System |
The Waves in the Lower Solar Atmosphere ( WaLSA ) team is an international consortium that is focused on investigating wave activity in the Sun's lower atmosphere. The purpose of the group is to understand how magnetohydrodynamic (MHD) waves generated within the Sun's interior and lower atmosphere affect the dynamics a... | https://en.wikipedia.org/wiki/WaLSA_Team |
In traditional Japanese aesthetics , wabi-sabi ( 侘び寂び ) centers on the acceptance of transience and imperfection. [ 2 ] It is often described as the appreciation of beauty that is "imperfect, impermanent, and incomplete". [ 3 ] It is prevalent in many forms of Japanese art. [ 4 ] [ 5 ]
Wabi-sabi combines two interrela... | https://en.wikipedia.org/wiki/Wabi-sabi |
Polythionic acid is an oxoacid which has a straight chain of sulfur atoms and has the chemical formula S n (SO 3 H) 2 ( n + 2 > 2). Trithionic acid (H 2 S 3 O 6 ), tetrathionic acid (H 2 S 4 O 6 ) are simple examples. They are the conjugate acids of polythionates . The compounds of n < 80 are expected to exist, and th... | https://en.wikipedia.org/wiki/Wackenroder_solution |
The Wacker process or the Hoechst-Wacker process (named after the chemical companies of the same name) refers to the oxidation of ethylene to acetaldehyde in the presence of palladium(II) chloride and copper(II) chloride as the catalyst . [ 1 ] This chemical reaction was one of the first homogeneous catalysis with orga... | https://en.wikipedia.org/wiki/Wacker_process |
Wad is an old mining term for any black manganese oxide or hydroxide mineral-rich rock in the oxidized zone of various ore deposits. Typically closely associated with various iron oxides. Specific mineral varieties include pyrolusite , lithiophorite , nsutite , takanelite and vernadite . [ 1 ] Wad can be considered to ... | https://en.wikipedia.org/wiki/Wad_(mineral) |
Wadja solves the problem of conversation relevance (social noise) by giving users a way to label social activity , and curate that activity into meaningful conversations . Wadja is based in Cyprus and had its BETA launch in August 2006. [ 1 ] As of December 2009, Wadja had over 5,000,000 registered users. [ 2 ]
Wadja... | https://en.wikipedia.org/wiki/Wadja |
The "Wadley-drift-canceling-loop" , also known as a "Wadley loop" , is a system of two oscillators , a frequency synthesizer , and two frequency mixers in the radio-frequency signal path. The system was designed by Dr. Trevor Wadley in the 1940s in South Africa . The circuit was first used for a stable wavemeter . (A w... | https://en.wikipedia.org/wiki/Wadley_loop |
Wafer bond characterization refers to the process of evaluating the quality and strength of a bond between two semiconductor wafers . The wafer bond characterization is based on different methods and tests. Considered a high importance of the wafer are the successful bonded wafers without flaws. Those flaws can be caus... | https://en.wikipedia.org/wiki/Wafer_bond_characterization |
Wafer bonding is a packaging technology on wafer -level for the fabrication of microelectromechanical systems (MEMS), nanoelectromechanical systems (NEMS), microelectronics and optoelectronics , ensuring a mechanically stable and hermetically sealed encapsulation. The wafers' diameter range from 100 mm to 200 mm (4 inc... | https://en.wikipedia.org/wiki/Wafer_bonding |
Wafer fabrication equipment is equipment that is used in the process of semiconductor fabrication to process raw semiconductor wafers into finished chips, such as integrated circuits . [ 1 ]
Wafer fabrication equipment is meant to be installed in cleanrooms .
Referred to respectively as the wafer fab equipment [ 2 ] ... | https://en.wikipedia.org/wiki/Wafer_fabrication_equipment |
A waffle slab or two-way joist slab is a concrete slab made of reinforced concrete with concrete ribs running in two directions on its underside. [ 1 ] The name waffle comes from the grid pattern created by the reinforcing ribs. Waffle slabs are preferred for spans greater than 40 feet (12 m), because, for a given mass... | https://en.wikipedia.org/wiki/Waffle_slab |
Wagner's gene network model is a computational model of artificial gene networks, which explicitly modeled the developmental and evolutionary process of genetic regulatory networks . A population with multiple organisms can be created and evolved from generation to generation. It was first developed by Andreas Wagner i... | https://en.wikipedia.org/wiki/Wagner's_gene_network_model |
The Wagner-Jauregg reaction is a classic organic reaction in organic chemistry , named after Theodor Wagner-Jauregg [ de ] (son of Julius Wagner-Jauregg ), describing the double Diels–Alder reaction of 2 equivalents of maleic anhydride with a 1,1-diarylethylene. After aromatization of the bis-adduct, the ultimate react... | https://en.wikipedia.org/wiki/Wagner-Jauregg_reaction |
In computer science , the Wagner–Fischer algorithm is a dynamic programming algorithm that computes the edit distance between two strings of characters.
The Wagner–Fischer algorithm has a history of multiple invention . Navarro lists the following inventors of it, with date of publication, and acknowledges that the li... | https://en.wikipedia.org/wiki/Wagner–Fischer_algorithm |
A Wagner–Meerwein rearrangement is a class of carbocation 1,2-rearrangement reactions in which a hydrogen , alkyl or aryl group migrates from one carbon to a neighboring carbon. [ 1 ] [ 2 ] They can be described as cationic [1,2]- sigmatropic rearrangements, proceeding suprafacially and with stereochemical retention. ... | https://en.wikipedia.org/wiki/Wagner–Meerwein_rearrangement |
A wah-wah pedal , or simply wah pedal , is a type of effects pedal designed for electric guitar that alters the timbre of the input signal to create a distinctive sound, mimicking the human voice saying the onomatopoeic name "wah-wah". The pedal sweeps a band-pass filter up and down in frequency to create a spectral gl... | https://en.wikipedia.org/wiki/Wah-wah_pedal |
In applied mathematics , Wahba's problem , first posed by Grace Wahba in 1965, seeks to find a rotation matrix ( special orthogonal matrix ) between two coordinate systems from a set of (weighted) vector observations. Solutions to Wahba's problem are often used in satellite attitude determination utilising sensors such... | https://en.wikipedia.org/wiki/Wahba's_problem |
The wait/walk dilemma occurs when waiting for a bus at a bus stop , when the duration of the wait may exceed the time needed to arrive at a destination by another means, especially walking .
Some work on this problem was featured in the 2008 "Year in Ideas" issue of The New York Times Magazine . [ 1 ]
The dilemma has ... | https://en.wikipedia.org/wiki/Wait/walk_dilemma |
A wajū ( 輪中 , lit. ' inside the circle ' ) Japanese pronunciation: [wa(d)ʑɯː] is a hydraulic engineering and flood control structure unique to the alluvial floodplain of the Kiso Three Rivers in central Japan. [ 1 ] It is comparable to the European polder , although a wajū is usually not reclaimed . The hardships endur... | https://en.wikipedia.org/wiki/Wajū |
Wake-on-Ring ( WOR ) or Wake-on-Modem ( WOM ) is a specification that allows supported computers and devices to "wake up" or turn on from a sleeping, hibernating or "soft off" state (e.g. ACPI state G1 or G2), and begin operation.
The basic premise is that a special signal is sent over phone lines to the computer thro... | https://en.wikipedia.org/wiki/Wake-on-ring |
In fluid dynamics , a wake may either be:
The wake is the region of disturbed flow (often turbulent ) downstream of a solid body moving through a fluid, caused by the flow of the fluid around the body.
For a blunt body in subsonic external flow, for example the Apollo or Orion capsules during descent and landing, the... | https://en.wikipedia.org/wiki/Wake_(physics) |
The Wake Forest Institute for Regenerative Medicine ( WFIRM ) is a research institute affiliated with Wake Forest School of Medicine and located in Winston-Salem , North Carolina , United States .
WFIRM's goal is to apply the principles of regenerative medicine to repair or replace diseased tissues and organs. Among o... | https://en.wikipedia.org/wiki/Wake_Forest_Institute_for_Regenerative_Medicine |
In probability theory , Wald's equation , Wald's identity [ 1 ] or Wald's lemma [ 2 ] is an important identity that simplifies the calculation of the expected value of the sum of a random number of random quantities. In its simplest form, it relates the expectation of a sum of randomly many finite-mean, independent and... | https://en.wikipedia.org/wiki/Wald's_equation |
In game theory , the Waldegrave problem is a problem first described in the second edition of Pierre Raymond de Montmort `s Essay d'analyse sur les jeux de hazard , which is the first discussion of a mixed strategy to derive a solution in game theory. Montmort originally called Waldegrave's Problem the Problème de la P... | https://en.wikipedia.org/wiki/Waldegrave_problem |
Walden inversion is the inversion of a stereogenic center in a chiral molecule in a chemical reaction . Since a molecule can form two enantiomers around a stereogenic center, the Walden inversion converts the configuration of the molecule from one enantiomeric form to the other. For example, in an S N 2 reaction , Wa... | https://en.wikipedia.org/wiki/Walden_inversion |
The Walden reductor is a reduction column filled with metallic silver which can be used to reduce a metal ion in aqueous solution to a lower oxidation state . It can be used e.g. to reduce UO 2 2+ to U 4+ . [ 1 ] The method is named after George H. Walden , who developed it jointly with a Ph.D. student, Sylvan M. Edmon... | https://en.wikipedia.org/wiki/Walden_reductor |
In mathematics , Waldspurger's theorem , introduced by Jean-Loup Waldspurger ( 1981 ), is a result that identifies Fourier coefficients of modular forms of half-integral weight k +1/2 with the value of an L-series at s = k /2.
This number theory -related article is a stub . You can help Wikipedia by expanding it .
Th... | https://en.wikipedia.org/wiki/Waldspurger's_theorem |
Professor Abiodun Adewale Oladipo (born January 1, 1958, Ile-Ife , Nigeria) [ 1 ] is a Nigerian academician, administrator , and politician. [ 2 ] His Contribution includes, the field of nuclear chemistry, as well as his involvement in Nigerian politics. He serves as the Pro-chancellor [ 3 ] [ 4 ] and Chairman of the G... | https://en.wikipedia.org/wiki/Wale_Oladipo |
Walgreens Boots Alliance, Inc. ( WBA ) is an American multinational holding company headquartered in Deerfield, Illinois . [ 2 ] The company was formed on December 31, 2014, after Walgreens bought the 55% stake in Alliance Boots (owner of Boots UK Limited ) that it did not already own. The total price of the acquisitio... | https://en.wikipedia.org/wiki/Walgreens_Boots_Alliance |
In graph theory , a walk-regular graph is a simple graph where the number of closed walks of any length ℓ {\displaystyle \ell } from a vertex to itself does only depend on ℓ {\displaystyle \ell } but not depend on the choice of vertex. Walk-regular graphs can be thought of as a spectral graph theory analogue of vertex-... | https://en.wikipedia.org/wiki/Walk-regular_graph |
In computer science , GSAT and WalkSAT are local search algorithms to solve Boolean satisfiability problems .
Both algorithms work on formulae in Boolean logic that are in, or have been converted into conjunctive normal form . They start by assigning a random value to each variable in the formula. If the assignment sa... | https://en.wikipedia.org/wiki/WalkSAT |
Walk Again Project is an international, non-profit consortium led by Miguel Nicolelis , created in 2009 in a partnership between Duke University and the IINN/ELS , where researchers come together to find neuro-rehabilitation treatments for spinal cord injuries, [ 1 ] [ 2 ] [ 3 ] which pioneered the development and use ... | https://en.wikipedia.org/wiki/Walk_Again_Project |
Walker Haden Land, Jr. (born May 29, 1932) is a former research professor in the Department of Bioengineering at Binghamton University . Land joined the faculty at Binghamton after a long career at IBM , and has publications in the fields of complex adaptive systems , statistical learning theory, bioinformatics , and c... | https://en.wikipedia.org/wiki/Walker_H._Land |
Walker–Warburg syndrome (WWS), also called Warburg syndrome , Chemke syndrome , HARD syndrome (Hydrocephalus, Agyria and Retinal Dysplasia), Pagon syndrome , cerebroocular dysgenesis (COD) or cerebroocular dysplasia-muscular dystrophy syndrome (COD-MD), [ 1 ] is a rare form of autosomal recessive congenital muscular dy... | https://en.wikipedia.org/wiki/Walker–Warburg_syndrome |
The term walking excavator may apply to two different forms of heavy equipment , the historic walking power shovel or dragline excavator that began to appear already early in the 20th century, or the contemporary version of all-terrain excavator popularly known as a spider excavator .
The original walking excavators w... | https://en.wikipedia.org/wiki/Walking_excavator |
The Walkman effect is the way music listened to via headphones grants the listener more control over their environment. The term was coined by Shuhei Hosokawa , a professor at the International Research Center for Japanese Studies , in an article published in Popular Music in 1984. [ 1 ] While the term was named after... | https://en.wikipedia.org/wiki/Walkman_effect |
The Wall mansion ( Chinese : 壁宿 ; pinyin : Bì Xiù ) [ 1 ] is one of the Twenty-eight mansions of the Chinese constellations . It is one of the northern mansions of the Black Tortoise .
This constellation -related article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Wall_(Chinese_constellation) |
A wall footing , or strip footing , is a continuous strip of concrete that serves to spread the weight of a load-bearing wall across an area of soil. [ 1 ] It is a component of a shallow foundation . [ 1 ]
Wall footings carrying direct vertical loads might be designed either in plain concrete or in reinforced concrete... | https://en.wikipedia.org/wiki/Wall_footing |
"Wall of Shame" ( German : Schandmauer ) is a phrase that is most commonly associated with the Berlin Wall . [ 1 ] In this context, the phrase was coined by Willy Brandt , and it was used by the government of West Berlin , and later popularized in the English-speaking world and elsewhere from the beginning of the 1960s... | https://en.wikipedia.org/wiki/Wall_of_Shame |
A plate or wall plate is a horizontal, structural, load-bearing member in wooden building framing.
A plate in timber framing is "A piece of Timber upon which some considerable weight is framed...Hence Ground-Plate...Window-plate [obsolete]..." etc. [ 1 ] Also called a wall plate , [ 2 ] raising plate , [ 3 ] or top pl... | https://en.wikipedia.org/wiki/Wall_plate |
In mathematics, a Wall polynomial is a polynomial studied by Wall (1963) in his work on conjugacy classes in classical groups , and named by Andrews (1984) .
This polynomial -related article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Wall_polynomial |
Wall studs are framing components in timber or steel -framed walls , that run between the top and bottom plates. It is a fundamental element in frame building. The majority non- masonry buildings rely on wall studs, with wood being the most common and least-expensive material used for studs. Studs are positioned perpen... | https://en.wikipedia.org/wiki/Wall_stud |
The Wallace Line or Wallace's Line is a faunal boundary line drawn in 1859 by the British naturalist Alfred Russel Wallace and named by the English biologist Thomas Henry Huxley .
It separates the biogeographic realms of Asia and ' Wallacea ', a transitional zone between Asia and Australia formerly also called the Mal... | https://en.wikipedia.org/wiki/Wallace_Line |
Wallacea / w ɒ ˈ l eɪ s i ə / is a biogeographical designation for a group of mainly Indonesian islands separated by deep-water straits from the Asian and Australian continental shelves . Wallacea includes Sulawesi , the largest island in the group, as well as Lombok , Sumbawa , Flores , Sumba , Timor , Halmahera , Bur... | https://en.wikipedia.org/wiki/Wallacea |
The Favorskii rearrangement is principally a rearrangement of cyclopropanones and α-halo ketones that leads to carboxylic acid derivatives. In the case of cyclic α-halo ketones, the Favorskii rearrangement constitutes a ring contraction. This rearrangement takes place in the presence of a base, sometimes hydroxide , to... | https://en.wikipedia.org/wiki/Wallach_degradation |
The Wallach rearrangement , also named Wallach transformation , is a name reaction in the organic chemistry . It is named after Otto Wallach , who discovered this reaction in 1880. In general it is a strong acid-promoted conversion of azoxybenzenes into hydroxyazobenzenes. [ 1 ] [ 2 ] [ 3 ]
The Wallach rearrangement i... | https://en.wikipedia.org/wiki/Wallach_rearrangement |
In geometry , Wallis's conical edge is a ruled surface given by the parametric equations
where a , b and c are constants.
Wallis's conical edge is also a kind of right conoid . It is named after the English mathematician John Wallis , who was one of the first to use Cartesian methods to study conic sections . [ 1 ]
... | https://en.wikipedia.org/wiki/Wallis's_conical_edge |
The Wallis product is the infinite product representation of π :
It was published in 1656 by John Wallis . [ 1 ]
Wallis derived this infinite product using interpolation, though his method is not regarded as rigorous. A modern derivation can be found by examining ∫ 0 π sin n x d x {\displaystyle \int _{0}^{\pi }\s... | https://en.wikipedia.org/wiki/Wallis_product |
A Walloon forge (or Walloon process ) is a type of finery forge that decarbonizes pig iron into wrought iron .
The process was conceived in the Liège region, and from there extended to France, [ 1 ] then England around the end of the 15th century. [ 2 ] [ 3 ] Louis de Geer brought it to Roslagen in Sweden at the begin... | https://en.wikipedia.org/wiki/Walloon_forge |
A wallpaper group (or plane symmetry group or plane crystallographic group ) is a mathematical classification of a two-dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and decorative art , especially in textiles , tiles , and wallpaper .
The simples... | https://en.wikipedia.org/wiki/Wallpaper_group |
The Walls of Ston ( Croatian : Stonske zidine ) are a series of defensive stone walls , originally more than 7 kilometres (4.3 mi) long, that surrounded and protected the city of Ston , in Dalmatia , part of the Republic of Ragusa , in what is now southern Croatia . [ 1 ] Their construction was begun in 1358. [ 2 ] On... | https://en.wikipedia.org/wiki/Walls_of_Ston |
Ernst Hjalmar Waloddi Weibull (18 June 1887 – 12 October 1979) was a Swedish civil engineer , materials scientist , and applied mathematician . The Weibull distribution is named after him.
Weibull joined the Swedish Coast Guard in 1905 as a midshipman. He moved up the ranks with promotion to sublieutenant in 1907, Cap... | https://en.wikipedia.org/wiki/Waloddi_Weibull |
Walsh diagrams , often called angular coordinate diagrams or correlation diagrams , are representations of calculated orbital binding energies of a molecule versus a distortion coordinate (bond angles), used for making quick predictions about the geometries of small molecules. [ 1 ] [ 2 ] By plotting the change in mole... | https://en.wikipedia.org/wiki/Walsh_diagram |
Walter Liese (31 January 1926 – 24 February 2023) was a German forestry and wood researcher and wood biologist. [ 1 ] [ 2 ] [ 3 ]
Liese was born in Berlin on 31 January 1926, and grew up in Eberswalde . He studied forestry at the University of Freiburg and the University of Göttingen . He obtained his PhD in 1951 unde... | https://en.wikipedia.org/wiki/Walter_Liese |
Walter Cox McCrone Jr. (June 9, 1916 – July 10, 2002) was an American chemist who worked extensively on applications of polarized light microscopy and is sometimes characterized as the "father of modern microscopy ". [ 1 ] [ 2 ] He was also an expert in electron microscopy , crystallography , ultra- microanalysis , and... | https://en.wikipedia.org/wiki/Walter_McCrone |
Walter Sidney Metcalf (18 May 1918 – 25 July 2008) was a New Zealand physical chemist . [ 2 ]
Metcalf was born in Kaitangata on 18 May 1918, the son of George Metcalf, and was educated at Napier Boys' High School . [ 3 ] He earned a bachelor's degree in music in parallel with his first science degree at the University... | https://en.wikipedia.org/wiki/Walter_Metcalf_(chemist) |
Walter Rüdorff (October 3, 1909 – April 1, 1989) was a German chemist known for his research on clathrates of graphite [ 1 ] and ternary oxides . [ 2 ] [ 3 ]
Rüdorff was born in Berlin in 1909. He studied chemistry as an undergraduate at Technische Hochschule Berlin (now Technische Universität Berlin ) and graduated i... | https://en.wikipedia.org/wiki/Walter_Rüdorff |
Walter Seelmann-Eggebert (17 April 1915 – 19 July 1988) was a German radiochemist. He was son of Erich Eggebert and Edwig Schmidt.
He was a student of Otto Hahn at the Kaiser Wilhelm Institute for Chemistry , where, after 1939, he worked with Fritz Strassmann on nuclear fission .
In 1949, he joined the University of ... | https://en.wikipedia.org/wiki/Walter_Seelmann-Eggebert |
Walter Thiel (7 March 1949 in Treysa , Hesse – 23 August 2019) [ 2 ] was a German theoretical chemist . [ 1 ] He was the president of the World Association of Theoretical and Computational Chemists (WATOC) from 2011. [ 3 ]
Thiel studied chemistry at the University of Marburg (West Germany) from 1966 to 1971, where he ... | https://en.wikipedia.org/wiki/Walter_Thiel_(chemist) |
Walter John Whiteley is a professor in the department of mathematics and statistics at York University in Canada. [ 1 ] He specializes in geometry and mathematics education , and is known for his expertise in structural rigidity and rigidity matroids .
Whiteley graduated from Queen's University in 1966. [ 2 ] [ 3 ] He... | https://en.wikipedia.org/wiki/Walter_Whiteley |
Wanda Szmielew née Montlak (5 April 1918 – 27 August 1976) [ 1 ] was a Polish mathematical logician who first proved the decidability of the first-order theory of abelian groups . [ 1 ]
Wanda Montlak was born on 5 April 1918 in Warsaw . She completed high school in 1935 and married, taking the name Szmielew. In the sa... | https://en.wikipedia.org/wiki/Wanda_Szmielew |
In dynamical systems and ergodic theory , the concept of a wandering set formalizes a certain idea of movement and mixing . When a dynamical system has a wandering set of non-zero measure, then the system is a dissipative system . This is the opposite of a conservative system , to which the Poincaré recurrence theorem ... | https://en.wikipedia.org/wiki/Wandering_set |
The Wang 3300 was an minicomputer released by Wang Laboratories in 1971.
Model with machine time sharing created between Wang 4000 and Wang 2200 . [ 1 ] Wang's first computer, the Wang 3300, was an 8-bit integrated circuit general-purpose minicomputer designed to be the central processor for a multi-terminal time-shar... | https://en.wikipedia.org/wiki/Wang_3300 |
The Wang 4000 was the first programmable computer system from Wang Laboratories , released in 1967. [ 1 ]
However, already in the spring of 1968, An Wang , seeing that he was not able to compete with the PDP-8 , focused on a new computer — model 3300 . [ 2 ] Allowed the use of peripheral devices, in particular printer... | https://en.wikipedia.org/wiki/Wang_4000 |
Wang Yung-ching ( Chinese : 王永慶 ; pinyin : Wáng Yǒngqìng ; Pe̍h-ōe-jī : Ông Éng-khèng ; 18 January 1917 – 15 October 2008), also called YC Wang , was a Taiwanese businessman. He was best known for being the chairman of Formosa Plastics Corporation , one of Taiwan's foremost plastic manufacturing establishments until hi... | https://en.wikipedia.org/wiki/Wang_Yung-ching |
Wang Yung-tsai ( Chinese : 王永在 ; pinyin : Wáng Yǒngzài ; 24 January 1921 – 27 November 2014) was the younger brother of Wang Yung-ching , founder of Formosa Plastics Group . [ 1 ]
He was born in Chyokutan, Shinden Town, Bunsan District, Taihoku Prefecture , Japanese Taiwan (modern-day Xindian District , New Taipei ). ... | https://en.wikipedia.org/wiki/Wang_Yung-tsai |
In algebra and network theory , a Wang algebra is a commutative algebra A {\displaystyle A} , over a field or (more generally) a commutative unital ring , in which A {\displaystyle A} has two additional properties: (Rule i) For all elements x of A {\displaystyle A} , x + x = 0 (universal additive nilpotency of degree 1... | https://en.wikipedia.org/wiki/Wang_algebra |
The Wang and Landau algorithm , proposed by Fugao Wang and David P. Landau , [ 1 ] is a Monte Carlo method designed to estimate the density of states of a system. The method performs a non-Markovian random walk to build the density of states by quickly visiting all the available energy spectrum. The Wang and Landau al... | https://en.wikipedia.org/wiki/Wang_and_Landau_algorithm |
Short names:
The WannaCry ransomware attack was a worldwide cyberattack in May 2017 by the WannaCry ransomware cryptoworm , which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the form of Bitcoin cryptocurrency . [ 4 ] It was propagated using Eter... | https://en.wikipedia.org/wiki/WannaCry_ransomware_attack |
The Wannier equation describes a quantum mechanical eigenvalue problem in solids where an electron in a conduction band and an electronic vacancy (i.e. hole) within a valence band attract each other via the Coulomb interaction . For one electron and one hole, this problem is analogous to the Schrödinger equation of the... | https://en.wikipedia.org/wiki/Wannier_equation |
The Wannier functions are a complete set of orthogonal functions used in solid-state physics . They were introduced by Gregory Wannier in 1937. [ 1 ] [ 2 ] Wannier functions are the localized molecular orbitals of crystalline systems.
The Wannier functions for different lattice sites in a crystal are orthogonal, allow... | https://en.wikipedia.org/wiki/Wannier_function |
The War Bureau of Consultants (WBC) was a committee of 12 prominent scientists and several government consultants put together in November 1941 to investigate the feasibility of a U.S. bio-weapons program. [ 1 ] The bureau's recommendations led to the creation of an official U.S. biological weapons program during World... | https://en.wikipedia.org/wiki/War_Bureau_of_Consultants |
The War Research Service (WRS) was a civilian agency of the United States government established during World War II to pursue research relating to biological warfare . Established in May 1942 by Secretary of War Henry L. Stimson , the WRS was embedded in the Federal Security Agency , the federal agency that administe... | https://en.wikipedia.org/wiki/War_Research_Service |
Wars or conflicts can break out between different groups in some ant species for a variety of reasons. These violent confrontations typically involve entire colonies , sometimes allied with each other, and can end in a stalemate, the complete destruction of one of the belligerents, the migration of one of the groups, o... | https://en.wikipedia.org/wiki/War_in_ants |
War sand is sand contaminated by remains of projectiles used in war. This kind of sand has been found in Normandy , since its invasion , among other places. [ 1 ] In 1988, the sand on Omaha Beach was discovered to contain man-made metal and glass particles deriving from shrapnel ; 4% of the sand in the sample was compo... | https://en.wikipedia.org/wiki/War_sand |
In mathematics , Waraszkiewicz spirals are subsets of the plane introduced by Waraszkiewicz ( 1932 ). Waraszkiewicz spirals give an example of an uncountable family of pairwise incomparable continua, meaning that there is no continuous map from one onto another. | https://en.wikipedia.org/wiki/Waraszkiewicz_spiral |
Warazan ( 藁算 ) was a system of record-keeping using knotted straw at the time of the Ryūkyū Kingdom . [ 3 ] [ 4 ] In the Southern Ryukyuan languages of the Sakishima Islands it was known as barazan and on Okinawa Island as warazani or warazai . [ 5 ] Formerly used in particular in relation to the "head tax", it is stil... | https://en.wikipedia.org/wiki/Warazan |
The Warburg coefficient (or Warburg constant ; denoted A W or σ ) is the diffusion coefficient of ions in solution , associated to the Warburg element , Z W . The Warburg coefficient has units of Ω / seconds = Ω s − 1 / 2 {\displaystyle {\Omega }/{\sqrt {\text{seconds}}}={\Omega }s^{-1/2}}
The value of A W can be obt... | https://en.wikipedia.org/wiki/Warburg_coefficient |
In plant physiology , the Warburg effect is the decrease in the rate of photosynthesis due to high oxygen concentrations. [ 1 ] [ 2 ] Oxygen is a competitive inhibitor of carbon dioxide fixation by RuBisCO which initiates photosynthesis. Furthermore, oxygen stimulates photorespiration which reduces photosynthetic outp... | https://en.wikipedia.org/wiki/Warburg_effect_(plant_physiology) |
The Warburg diffusion element is an equivalent electrical circuit component that models the diffusion process in dielectric spectroscopy . That element is named after German physicist Emil Warburg .
A Warburg impedance element can be difficult to recognize because it is nearly always associated with a charge-transfer ... | https://en.wikipedia.org/wiki/Warburg_element |
The Warburg hypothesis ( / ˈ v ɑːr b ʊər ɡ / , [ˈvaːɐ̯bʊʁk] ), sometimes known as the Warburg theory of cancer , postulates that the driver of carcinogenesis (cancer formation) is insufficient cellular respiration caused by insult (damage) to mitochondria . [ 1 ] The Warburg effect , on the other hand, describes the ob... | https://en.wikipedia.org/wiki/Warburg_hypothesis |
The Warburg–Christian method is an ultraviolet spectroscopic protein and nucleic acid assay method based on the absorbance of UV light at 260 nm and 280 nm wavelengths. Proteins generally absorb light at 280 nanometers due to the presence of tryptophan and tyrosine . Nucleic acids absorb more at 260 nm, primarily due... | https://en.wikipedia.org/wiki/Warburg–Christian_method |
Warchalking is the drawing of symbols in public places to advertise an open Wi-Fi network .
Inspired by hobo symbols , the warchalking marks were conceived by a group of friends in June 2002 and published by Matt Jones who designed the set of icons and produced a downloadable document containing them. [ 1 ] [ 2 ] Withi... | https://en.wikipedia.org/wiki/Warchalking |
Ward-Beck Systems commonly referred to as Ward-Beck or simply WBS , is a Canadian manufacturer of broadcast audio and video equipment. It was founded in a garage in April 1967 by Ron W. Ward and director of engineering, Rodger K. Beck. [ 1 ]
On January 26, 2021, Ward-Beck announced that it would "cease manufacturing o... | https://en.wikipedia.org/wiki/Ward-Beck_Systems |
Wardialing (or war dialing ) is a technique to automatically scan a list of telephone numbers, usually dialing every number in a local area code to search for modems, computers, bulletin board systems ( computer servers ) and fax machines . Hackers use the resulting lists for various purposes: hobbyists for exploration... | https://en.wikipedia.org/wiki/Wardialing |
Wardriving is the act of searching for Wi-Fi wireless networks as well as cell towers, usually from a moving vehicle, using a laptop or smartphone . Software for wardriving is freely available on the internet .
Warbiking , warcycling , warwalking and similar use the same approach but with other modes of transportation... | https://en.wikipedia.org/wiki/Wardriving |
A warehouse control system (WCS) is a software application that directs the real-time activities within warehouses and distribution centers (DC). As the “traffic cop” for the warehouse/distribution center, the WCS is responsible for keeping everything running smoothly, maximizing the efficiency of the material handlin... | https://en.wikipedia.org/wiki/Warehouse_control_system |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.