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76,325,708 | https://en.wikipedia.org/wiki/Symmetries%20of%20Culture%3A%20Theory%20and%20Practice%20of%20Plane%20Pattern%20Analysis | Symmetries of Culture: Theory and Practice of Plane Pattern Analysis is a book by anthropologist Dorothy K. Washburn and mathematician Donald W. Crowe published in 1988 by the University of Washington Press. The book is about the identification of patterns on cultural objects.
Structure and topics
The book is divided... | Symmetries of Culture: Theory and Practice of Plane Pattern Analysis | Physics,Mathematics | 1,178 |
264,361 | https://en.wikipedia.org/wiki/Dating%20the%20Bible | The oldest surviving Hebrew Bible manuscripts, the Dead Sea Scrolls, date to . Some of these scrolls are presently stored at the Shrine of the Book in Jerusalem. The oldest text of the entire Christian Bible, including the New Testament, is the Codex Sinaiticus dating from the 4th century CE, with its Old Testament a c... | Dating the Bible | Physics | 485 |
4,885,509 | https://en.wikipedia.org/wiki/Substrate%20%28aquatic%20environment%29 | Substrate is the earthy material that forms or collects at the bottom of an aquatic habitat. It is made of sediments that may consist of:
Silt – A loose, granular material with mineral particles 0.5 mm or less in diameter.
Clay – A smooth, fine-grained material made of fine particles of hydrous aluminium phyllosilicat... | Substrate (aquatic environment) | Biology | 436 |
32,475,185 | https://en.wikipedia.org/wiki/SIGNAL%20%28programming%20language%29 | SIGNAL is a programming language based on synchronized dataflow (flows + synchronization): a process is a set of equations on elementary flows describing both data and control.
The SIGNAL formal model provides the capability to describe systems with several clocks (polychronous systems) as relational specifications. R... | SIGNAL (programming language) | Technology,Engineering | 1,006 |
17,185,722 | https://en.wikipedia.org/wiki/Marden%27s%20theorem | [[File:Marden theorem.svg|thumb|A triangle and its Steiner inellipse. The zeroes of are the black dots, and the zeroes of {{math|p(z)}} are the red dots). The center green dot is the zero of . Marden's theorem states that the red dots are the foci of the ellipse.]]
In mathematics, Marden's theorem''', named after Morr... | Marden's theorem | Mathematics | 766 |
4,157,430 | https://en.wikipedia.org/wiki/Truncated%20great%20dodecahedron | In geometry, the truncated great dodecahedron is a nonconvex uniform polyhedron, indexed as U37. It has 24 faces (12 pentagrams and 12 decagons), 90 edges, and 60 vertices. It is given a Schläfli symbol t{5,5/2}.
Related polyhedra
It shares its vertex arrangement with three other uniform polyhedra: the nonconvex gre... | Truncated great dodecahedron | Physics | 278 |
478,706 | https://en.wikipedia.org/wiki/Threatened%20species | A threatened species is any species (including animals, plants and fungi) which is vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation, a mathematical measure of biomass related to population growth rate. This qu... | Threatened species | Chemistry,Engineering,Biology | 1,308 |
1,091,669 | https://en.wikipedia.org/wiki/Forschungszentrum%20J%C3%BClich | Forschungszentrum Jülich (FZJ; “Jülich Research Centre”) is a German national research institution that pursues interdisciplinary research in the fields of energy, information, and bioeconomy. It operates a broad range of research infrastructures like supercomputers, an atmospheric simulation chamber, electron microsc... | Forschungszentrum Jülich | Physics,Engineering | 8,030 |
55,755,393 | https://en.wikipedia.org/wiki/Institute%20of%20Ecotechnics | The Institute of Ecotechnics is an educational, training and research charity with a special interest in ecotechnology, the environment, conservation, and heritage. With its U.K. headquarters in London, England and its U.S. affiliate in Santa Fe, NM, the institute was founded to "develop and practice the discipline of ... | Institute of Ecotechnics | Environmental_science | 2,317 |
38,256,214 | https://en.wikipedia.org/wiki/Glossary%20of%20commutative%20algebra | This is a glossary of commutative algebra.
See also list of algebraic geometry topics, glossary of classical algebraic geometry, glossary of algebraic geometry, glossary of ring theory and glossary of module theory.
In this article, all rings are assumed to be commutative with identity 1.
!$@
A
B
C
D
E
F
G
H... | Glossary of commutative algebra | Mathematics | 113 |
43,114,303 | https://en.wikipedia.org/wiki/James%20Bovell | James Bovell (1817–1880) was a prominent Canadian physician, microscopist, educator, theologian and minister.
In his youth, he traveled to London to study medicine at Guy's Hospital. There, he was related to Sir Astley Cooper and had Richard Bright and Thomas Addison among his professors, and Robert Graves and Willi... | James Bovell | Chemistry | 514 |
32,268,698 | https://en.wikipedia.org/wiki/Lipetsk%20fighter-pilot%20school | The Lipetsk fighter-pilot school (), also known as WIWUPAL from its German codename Wissenschaftliche Versuchs- und Personalausbildungsstation "Scientific Experimental and Personnel Training Station", was a secret training school for fighter pilots operated by the German Reichswehr at Lipetsk, Soviet Union, because Ger... | Lipetsk fighter-pilot school | Engineering | 1,070 |
19,885,739 | https://en.wikipedia.org/wiki/Myxopyronin | Myxopyronins (Myx) are a group of alpha-pyrone antibiotics, which are inhibitors of bacterial RNA polymerase (RNAP). They target switch 1 and switch 2 of the RNAP "switch region". Rifamycins and fidaxomicin also target RNAP, but target different sites in RNAP. Myxopyronins do not have cross-resistance with any other d... | Myxopyronin | Biology | 359 |
49,603,311 | https://en.wikipedia.org/wiki/Annual%20vs.%20perennial%20plant%20evolution | Annuality (living and reproducing in a single year) and perenniality (living more than two years) represent major life history strategies within plant lineages. These traits can shift from one to another over both macroevolutionary and microevolutionary timescales. While perenniality and annuality are often described a... | Annual vs. perennial plant evolution | Biology | 2,836 |
54,638,711 | https://en.wikipedia.org/wiki/DDIT4L | DNA-damage-inducible transcript 4 like (DDIT4L) or regulated in development and DNA damage response 2 (REDD2) is a protein that in humans is encoded by the DDIT4L gene. The gene is located on chromosome 4 or chromosome 3 in human or mouse respectively.
Function
DDIT4L is a negative regulator of mTOR. DDIT4L is a stre... | DDIT4L | Chemistry | 291 |
3,251,249 | https://en.wikipedia.org/wiki/Thioacetal | In organosulfur chemistry, thioacetals are the sulfur (thio-) analogues of acetals (). There are two classes: the less-common monothioacetals, with the formula , and the dithioacetals, with the formula (symmetric dithioacetals) or (asymmetric dithioacetals).
The symmetric dithioacetals are relatively common. They a... | Thioacetal | Chemistry | 510 |
4,151,504 | https://en.wikipedia.org/wiki/Polytropic%20process | A polytropic process is a thermodynamic process that obeys the relation:
where p is the pressure, V is volume, n is the polytropic index, and C is a constant. The polytropic process equation describes expansion and compression processes which include heat transfer.
Particular cases
Some specific values of n correspon... | Polytropic process | Physics,Chemistry | 374 |
2,209,960 | https://en.wikipedia.org/wiki/Saccharomyces%20uvarum | Saccharomyces uvarum is a species of yeast that is commonly found in fermented beverages, particularly those fermented at colder temperatures. It was originally described by Martinus Willem Beijerinck in 1898, but was long considered identical to S. bayanus. In 2000 and 2005, genetic investigations of various Saccharom... | Saccharomyces uvarum | Biology | 146 |
11,750,751 | https://en.wikipedia.org/wiki/.hack | .hack (pronounced "Dot Hack") is a Japanese multimedia franchise that encompasses two projects: Project .hack and .hack Conglomerate. They were primarily created and developed by CyberConnect2, and published by Bandai Namco Entertainment. The series features an alternative history setting in the rise of the new millenn... | .hack | Technology | 3,139 |
58,398,796 | https://en.wikipedia.org/wiki/Aspergillus%20eucalypticola | Aspergillus eucalypticola is a species of fungus in the genus Aspergillus. It belongs to the group of black Aspergilli which are important industrial workhorses. A. eucalypticola belongs to the Nigri section.
The species was first described in 2011. A. aculeatinus has been isolated from eucalyptus leaves in Australia, ... | Aspergillus eucalypticola | Biology | 249 |
58,692,246 | https://en.wikipedia.org/wiki/Aspergillus%20halophilicus | Aspergillus halophilicus is a species of fungus in the genus Aspergillus. It is from the Restricti section. The species was first described in 1959. It has been isolated from dried corn in the United States and a textile in the Netherlands. It has been reported to produce chaetoviridin A, deoxybrevianamid E, pseurotin ... | Aspergillus halophilicus | Biology | 175 |
61,814,755 | https://en.wikipedia.org/wiki/Elizabeth%20Donnelly%20%28engineer%29 | Elizabeth Donnelly is a British engineer and executive. She is currently the chief executive officer of Women's Engineering Society United Kingdom. Donnelly was appointed CEO on 23 August 2018.
A systems engineer by education, Donnelly worked with companies such as Rolls-Royce. She was a founding member of the Royal A... | Elizabeth Donnelly (engineer) | Engineering | 262 |
1,677,957 | https://en.wikipedia.org/wiki/Flexural%20rigidity | Flexural rigidity is defined as the force couple required to bend a fixed non-rigid structure by one unit of curvature, or as the resistance offered by a structure while undergoing bending.
Flexural rigidity of a beam
Although the moment and displacement generally result from external loads and may vary along the l... | Flexural rigidity | Physics | 620 |
634,296 | https://en.wikipedia.org/wiki/John%20Macadam | The Honorable Dr John Macadam (29 May 1827 – 2 September 1865), was a Scottish-Australian chemist, medical teacher, Australian politician and cabinet minister, and honorary secretary of the Burke and Wills expedition. The genus Macadamia (macadamia nut) was named after him in 1857. He died at sea, on a voyage from Aust... | John Macadam | Chemistry | 2,551 |
63,498,200 | https://en.wikipedia.org/wiki/List%20of%20World%27s%20Fair%20architecture | This is a list of buildings and structures built for World's Fairs.
Officially recognized exhibitions
Architecture built for world's fairs recognized by the Bureau International des Expositions.
London Great Exhibition 1851
The Crystal Palace
Paris Exposition Universelle 1855
Palais de l'Industrie
Théâtre du... | List of World's Fair architecture | Engineering | 415 |
72,152,899 | https://en.wikipedia.org/wiki/WR%20119 | WR 119 is a Wolf–Rayet star located about 10,500 light years away in the constellation Scutum. WR 119 is classified as a WC9 star, belonging to the late-type carbon sequence of Wolf-Rayet stars. WR 119 is noteworthy for being the least luminous known Wolf-Rayet star, at just over . The most recent estimate is even lowe... | WR 119 | Astronomy | 411 |
22,458,313 | https://en.wikipedia.org/wiki/Philosophy%20of%20computer%20science | The philosophy of computer science is concerned with the philosophical questions that arise within the study of computer science. There is still no common understanding of the content, aims, focus, or topics of the philosophy of computer science, despite some attempts to develop a philosophy of computer science like th... | Philosophy of computer science | Mathematics,Technology | 888 |
41,940,845 | https://en.wikipedia.org/wiki/HD%20220773 | HD 220773 is a star in the northern constellation of Pegasus. It has an apparent visual magnitude of 7.10, which is too faint to be visible with the naked eye. The distance to this system, as determined by parallax measurements, is 165 light years, but it is drifting closer with a radial velocity of −37.7 km/s. The sta... | HD 220773 | Astronomy | 494 |
228,668 | https://en.wikipedia.org/wiki/Suslin%27s%20problem | In mathematics, Suslin's problem is a question about totally ordered sets posed by and published posthumously.
It has been shown to be independent of the standard axiomatic system of set theory known as ZFC; showed that the statement can neither be proven nor disproven from those axioms, assuming ZF is consistent.
(... | Suslin's problem | Mathematics | 764 |
77,326,503 | https://en.wikipedia.org/wiki/Negative%20air%20ions | Negative air ions (NAI) are important air component, generally referring to the collections of negatively charged single gas molecules or ion clusters in the air. They play an essential role in maintaining the charge balance of the atmosphere. The main components of air are molecular nitrogen and oxygen. Due to the st... | Negative air ions | Physics,Chemistry,Biology | 2,119 |
54,184,905 | https://en.wikipedia.org/wiki/Dicirenone | Dicirenone (INN, USAN; developmental code name SC-26304; also known as 7α-carboxyisopropylspirolactone) is a synthetic, steroidal antimineralocorticoid of the spirolactone group which was developed as a diuretic and antihypertensive agent but was never marketed. It was synthesized and assayed in 1974. Similarly to othe... | Dicirenone | Chemistry | 167 |
19,855,393 | https://en.wikipedia.org/wiki/AS4 | AS4 (Applicability Statement 4) is an open standard for the secure and payload-agnostic exchange of Business-to-business documents using Web services. Secure document exchange is governed by aspects of WS-Security, including XML Encryption and XML Digital Signatures. Payload agnosticism refers to the document type (e.g... | AS4 | Technology | 425 |
52,505,053 | https://en.wikipedia.org/wiki/Vulnerability%20assessment%20%28computing%29 | Vulnerability assessment is a process of defining, identifying and classifying the security holes in information technology systems. An attacker can exploit a vulnerability to violate the security of a system. Some known vulnerabilities are Authentication Vulnerability, Authorization Vulnerability and Input Validation ... | Vulnerability assessment (computing) | Technology | 490 |
8,980,927 | https://en.wikipedia.org/wiki/World%20Urbanism%20Day | The international organisation for World Urbanism Day, also known as "World Town Planning Day", was founded in 1949 by the late Professor Carlos Maria della Paolera of the University of Buenos Aires, a graduate at the Institut d'urbanisme in Paris, to advance public and professional interest in planning. It is celebrat... | World Urbanism Day | Engineering | 133 |
917,475 | https://en.wikipedia.org/wiki/Allantoin | Allantoin is a chemical compound with formula C4H6N4O3. It is also called 5-ureidohydantoin or glyoxyldiureide. It is a diureide of glyoxylic acid. Allantoin is a major metabolic intermediate in most organisms including animals, plants and bacteria, though not humans. It is produced from uric acid, which itself is a de... | Allantoin | Chemistry | 914 |
298,372 | https://en.wikipedia.org/wiki/Obfuscated%20Perl%20Contest | The Obfuscated Perl Contest was a competition for programmers of Perl which was held annually between 1996 and 2000. Entrants to the competition aimed to write "devious, inhuman, disgusting, amusing, amazing, and bizarre Perl code". It was run by The Perl Journal and took its name from the International Obfuscated C C... | Obfuscated Perl Contest | Technology,Engineering | 293 |
14,235,691 | https://en.wikipedia.org/wiki/Outline%20of%20genetics | The following outline is provided as an overview of and topical guide to genetics:
Genetics – science of genes, heredity, and variation in living organisms. Genetics deals with the molecular structure and function of genes, and gene behavior in context of a cell or organism (e.g. dominance and epigenetics), patterns... | Outline of genetics | Biology | 1,071 |
25,081,409 | https://en.wikipedia.org/wiki/Imagination%20Age | The Imagination Age is a theorized period following the Information Age where creativity and imagination become the primary creators of economic value (in contrast, the main activities of the Information Age were analysis and rational thought). It has been proposed that new technologies like virtual reality and user cr... | Imagination Age | Technology | 1,723 |
1,335,536 | https://en.wikipedia.org/wiki/Butterfly%20theorem | The butterfly theorem is a classical result in Euclidean geometry, which can be stated as follows:
Let be the midpoint of a chord of a circle, through which two other chords and are drawn; and intersect chord at and correspondingly. Then is the midpoint of .
Proof
A formal proof of the theorem is as follow... | Butterfly theorem | Mathematics | 308 |
2,440,784 | https://en.wikipedia.org/wiki/Medical%20geology | Medical geology is an interdisciplinary scientific field studying the relationship between natural geological factors and their effects on human and animal health. The Commission on Geological Sciences for Environmental Planning defines medical geology as "the science dealing with the influence of ordinary environmenta... | Medical geology | Biology | 1,538 |
44,488,972 | https://en.wikipedia.org/wiki/Paramodular%20group | In mathematics, a paramodular group is a special sort of arithmetic subgroup of the symplectic group. It is a generalization of the Siegel modular group, and has the same relation to polarized abelian varieties that the Siegel modular group has to principally polarized abelian varieties. It is the group of automorphism... | Paramodular group | Mathematics | 665 |
37,104,812 | https://en.wikipedia.org/wiki/Lepiota%20ananya | Lepiota ananya is a gilled mushroom of the genus Lepiota in the order Agaricales. Known only to come from Kerala State, India, it was described as new to science in 2009.
Taxonomy
The species was first described in a 2009 issue of the journal Mycotaxon. The type collection was made in July 2005, in Palode, a village i... | Lepiota ananya | Biology | 582 |
3,036,665 | https://en.wikipedia.org/wiki/843%20Nicolaia | 843 Nicolaia is a main-belt asteroid discovered by Danish astronomer H. Thiele on 30 September 1916. It was a lost asteroid for 65 years before being rediscovered by Astronomisches Rechen-Institut at Heidelberg in 1981. The asteroid is orbiting the Sun with a period of 3.44 years.
References
External links
0008... | 843 Nicolaia | Astronomy | 90 |
11,438,066 | https://en.wikipedia.org/wiki/Mycosphaerella%20pyri | Mycosphaerella pyri is a fungal plant pathogen.
See also
List of Mycosphaerella species
References
Fungal plant pathogens and diseases
pyri
Fungi described in 1869
Fungus species | Mycosphaerella pyri | Biology | 42 |
18,823,843 | https://en.wikipedia.org/wiki/Howard%20M.%20Wiseman | Howard Mark Wiseman (born 19 June 1968) is an Australian theoretical and quantum physicist, who notable for his work on quantum feedback control, quantum measurements, quantum information (especially quantum steering), open quantum systems, the many interacting worlds interpretation of quantum mechanics, and other topi... | Howard M. Wiseman | Physics | 412 |
67,686,153 | https://en.wikipedia.org/wiki/Chiral%20drugs | Chemical compounds that come as mirror-image pairs are referred to by chemists as chiral or handed molecules. Each twin is called an enantiomer. Drugs that exhibit handedness are referred to as chiral drugs. Chiral drugs that are equimolar (1:1) mixture of enantiomers are called racemic drugs and these are obviously de... | Chiral drugs | Physics,Chemistry,Biology | 3,819 |
75,328,204 | https://en.wikipedia.org/wiki/Nilsequence | In mathematics, a nilsequence is a type of numerical sequence playing a role in ergodic theory and additive combinatorics. The concept is related to nilpotent Lie groups and almost periodicity. The name arises from the part played in the theory by compact nilmanifolds of the type where is a nilpotent Lie group and a... | Nilsequence | Mathematics | 1,017 |
168,315 | https://en.wikipedia.org/wiki/Laundry%20symbol | A laundry symbol, also called a care symbol, is a pictogram indicating the manufacturer's suggestions as to methods of washing, drying, dry-cleaning and ironing clothing. Such symbols are written on labels, known as care labels or care tags, attached to clothing to indicate how a particular item should best be cleaned.... | Laundry symbol | Mathematics | 1,080 |
30,329,560 | https://en.wikipedia.org/wiki/Berry%20connection%20and%20curvature | In physics, Berry connection and Berry curvature are related concepts which can be viewed, respectively, as a local gauge potential and gauge field associated with the Berry phase or geometric phase. The concept was first introduced by S. Pancharatnam as geometric phase and later elaborately explained and popularized b... | Berry connection and curvature | Physics,Chemistry,Materials_science | 1,482 |
27,700,016 | https://en.wikipedia.org/wiki/Social%20Age | Social Age encompasses both societal and technological changes succeeding the Information Age.
It is divergent from the Information Age as it gives more prominence to social factors when adopting and/or extending technology and information. It further broadens the definition of Attention Age because the Social Age fo... | Social Age | Technology | 114 |
21,972,808 | https://en.wikipedia.org/wiki/25%20Vulpeculae | 25 Vulpeculae is a single star in the northern constellation of Vulpecula, located roughly 1,170 light years away from the Sun. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 5.50 This object is moving closer to the Earth with a heliocentric radial velocity of −11 k... | 25 Vulpeculae | Astronomy | 267 |
72,221,383 | https://en.wikipedia.org/wiki/Lead%28II%29%20perchlorate | Lead(II) perchlorate is a chemical compound with the formula Pb(ClO4)2·xH2O, where is x is 0,1, or 3. It is an extremely hygroscopic white solid that is very soluble in water.
Preparation
Lead perchlorate trihydrate is produced by the reaction of lead(II) oxide, lead carbonate, or lead nitrate by perchloric acid:
Pb(N... | Lead(II) perchlorate | Chemistry | 319 |
61,834,594 | https://en.wikipedia.org/wiki/Taiji%20program | The Taiji program is a proposed Chinese satellite-based gravitational-wave observatory. It is scheduled for launch in 2033 to study ripples in spacetime caused by gravitational waves. The program consists of a triangle of three spacecraft orbiting the Sun linked by laser interferometers.
There are two alternative pl... | Taiji program | Astronomy,Technology,Engineering | 1,322 |
5,042,360 | https://en.wikipedia.org/wiki/Constructive%20set%20theory | Axiomatic constructive set theory is an approach to mathematical constructivism following the program of axiomatic set theory.
The same first-order language with "" and "" of classical set theory is usually used, so this is not to be confused with a constructive types approach.
On the other hand, some constructive theo... | Constructive set theory | Mathematics | 31,653 |
20,759,880 | https://en.wikipedia.org/wiki/Enpiperate | Enpiperate is a calcium channel blocker.
References
Calcium channel blockers
Piperidines | Enpiperate | Chemistry,Biology | 20 |
16,270,380 | https://en.wikipedia.org/wiki/Omicron%20Draconis | Omicron Draconis (Latinised as ο Draconis, abbreviated to ο Dra) is a giant star in the constellation Draco located 322.93 light years from the Earth. Its path in the night sky is circumpolar for latitudes greater than 31o north, meaning the star never rises or sets when viewed in the night sky.
This is a single-lined... | Omicron Draconis | Astronomy | 324 |
3,415,287 | https://en.wikipedia.org/wiki/Conformal%20gravity | Conformal gravity refers to gravity theories that are invariant under conformal transformations in the Riemannian geometry sense; more accurately, they are invariant under Weyl transformations where is the metric tensor and is a function on spacetime.
Weyl-squared theories
The simplest theory in this category has t... | Conformal gravity | Physics,Mathematics | 770 |
8,884,790 | https://en.wikipedia.org/wiki/Cutler%27s%20bar%20notation | In mathematics, Cutler's bar notation is a notation system for large numbers, introduced by Mark Cutler in 2004. The idea is based on iterated exponentiation in much the same way that exponentiation is iterated multiplication.
Introduction
A regular exponential can be expressed as such:
However, these expressions be... | Cutler's bar notation | Mathematics | 470 |
1,412 | https://en.wikipedia.org/wiki/Amine | In chemistry, amines (, ) are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Formally, amines are derivatives of ammonia ((in which the bond angle between the nitrogen and hydrogen is 170°), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or... | Amine | Chemistry | 4,216 |
65,639,408 | https://en.wikipedia.org/wiki/Manifold%20injection | Manifold injection is a mixture formation system for internal combustion engines with external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine. In a manifold-injected engine, the fuel is injected into the intake manifold, wher... | Manifold injection | Technology | 3,525 |
2,527,996 | https://en.wikipedia.org/wiki/Automatic%20frequency%20control | In radio equipment, Automatic Frequency Control (AFC), also called Automatic Fine Tuning (AFT), is a method or circuit to automatically keep a resonant circuit tuned to the frequency of an incoming radio signal. It is primarily used in radio receivers to keep the receiver tuned to the frequency of the desired station.... | Automatic frequency control | Engineering | 324 |
46,532,824 | https://en.wikipedia.org/wiki/Intermetallic%20particle | Intermetallic particles form during solidification of metallic alloys.
Aluminium alloys
Al-Si-Cu-Mg alloys
Al-Si-Cu-Mg alloys form Al5FeSi- plate like intermetallic phases like -Al8Fe2Si, Al2Cu, etc. The size and morphology of these intermetallic phases in these alloys control the mechanical properties of these all... | Intermetallic particle | Physics,Chemistry,Materials_science | 191 |
2,632,079 | https://en.wikipedia.org/wiki/Fanning%20friction%20factor | The Fanning friction factor (named after American engineer John T. Fanning) is a dimensionless number used as a local parameter in continuum mechanics calculations. It is defined as the ratio between the local shear stress and the local flow kinetic energy density:
where
is the local Fanning friction factor (dimens... | Fanning friction factor | Physics,Chemistry,Engineering | 989 |
7,868,885 | https://en.wikipedia.org/wiki/A.%20David%20Buckingham | Amyand David Buckingham (28 January 1930 – 4 February 2021) born in Pymble, Sydney, New South Wales, Australia was a chemist, with primary expertise in chemical physics.
Life and career
David Buckingham obtained a Bachelor of Science and Master of Science, under Professor Raymond Le Fevre, from the University of Sydn... | A. David Buckingham | Chemistry | 942 |
76,369,743 | https://en.wikipedia.org/wiki/Erysiphe%20platani | Erysiphe platani, also known as sycamore powdery mildew, is a fungus native to North America that now infects sycamore tree species worldwide. Infections may spread rapidly in urban settings with large groups of young trees or in plant nurseries. This mildew thrives when there are high humidity conditions during the gr... | Erysiphe platani | Biology | 193 |
25,100,521 | https://en.wikipedia.org/wiki/Yessotoxin | Yessotoxins are a group of lipophilic, sulfur bearing polyether toxins that are related to ciguatoxins. They are produced by a variety of dinoflagellates, most notably Lingulodinium polyedrum and Gonyaulax spinifera.
When the environmental conditions encourage the growth of YTX producing dinoflagellates, the toxin(s) ... | Yessotoxin | Chemistry | 2,322 |
5,907,331 | https://en.wikipedia.org/wiki/SoundRenderer | SoundRenderer is a spatialized audio rendering plugin for Maya to simulate 3D-positional audio. It can be used to create a multichannel audiotrack from many mono wav-files positioned in the scene for later synchronization with the rendered video.
The plugin uses the audiofiles set up in the 3d scene and renders them t... | SoundRenderer | Technology | 249 |
7,133,473 | https://en.wikipedia.org/wiki/Commutation%20matrix | In mathematics, especially in linear algebra and matrix theory, the commutation matrix is used for transforming the vectorized form of a matrix into the vectorized form of its transpose. Specifically, the commutation matrix K(m,n) is the nm × mn permutation matrix which, for any m × n matrix A, transforms vec(A) into v... | Commutation matrix | Mathematics | 1,047 |
1,358,654 | https://en.wikipedia.org/wiki/Measurement%20tower | A measurement tower or measurement mast, also known as meteorological tower or meteorological mast (met tower or met mast), is a free standing tower or a removed mast, which carries measuring instruments with meteorological instruments, such as thermometers and instruments to measure wind speed. Measurement towers are ... | Measurement tower | Technology,Engineering | 305 |
77,827,864 | https://en.wikipedia.org/wiki/Povorcitinib | Povorcitinib is an investigational new drug that is being evaluated for the treatment of the skin conditions hidradenitis suppurativa and chronic prurigo. It is a JAK1 inhibitor.
References
Azetidines
Benzamides
Janus kinase inhibitors
Pyrazoles
Trifluoromethyl compounds
Nitriles | Povorcitinib | Chemistry | 73 |
26,955,958 | https://en.wikipedia.org/wiki/Counterfeit%20electronic%20component | Counterfeit electronic components are electronic parts whose origin or quality is deliberately misrepresented. Counterfeiting of electronic components can infringe on the legitimate producer's trademark rights. The marketing of electronic components has been commoditized, making it easier for counterfeiters to make it ... | Counterfeit electronic component | Technology,Engineering | 671 |
37,914,029 | https://en.wikipedia.org/wiki/Stochastic%20Eulerian%20Lagrangian%20method | In computational fluid dynamics, the Stochastic Eulerian Lagrangian Method (SELM) is an approach to capture essential features of fluid-structure interactions subject to thermal fluctuations while introducing approximations which facilitate analysis and the development of tractable numerical methods. SELM is a hybrid ... | Stochastic Eulerian Lagrangian method | Physics,Chemistry,Engineering | 616 |
54,590,538 | https://en.wikipedia.org/wiki/Stankoprom | Stankoprom () is a Russian designer and manufacturer of machine tools based in Moscow. It was established in 2013 on the initiative of the Ministry of Industry and Trade of Russia and Rostec State Corporation. as part as Russia's Import substitution strategy to reduce the country's reliance on foreign-made machine too... | Stankoprom | Engineering | 657 |
53,986,519 | https://en.wikipedia.org/wiki/NGC%20523 | NGC 523, also known as Arp 158, from the ARP catalog is a spiral galaxy located in the constellation Andromeda. It was discovered separately by William Herschel on 13 September 1784, and by Heinrich d'Arrest on 13 August 1862. d'Arrest's discovery was listed as NGC 523, while Herschel's was listed as NGC 537; the two a... | NGC 523 | Astronomy | 170 |
372,426 | https://en.wikipedia.org/wiki/Production%20equipment%20control | Production equipment control involves production equipment that resides in the shop floor of a manufacturing company and its purpose is to produce goods of a wanted quality when provided with production resources of a required quality. In modern production lines the production equipment is fully automated using industr... | Production equipment control | Engineering | 130 |
3,078 | https://en.wikipedia.org/wiki/Altair | Altair is the brightest star in the constellation of Aquila and the twelfth-brightest star in the night sky. It has the Bayer designation Alpha Aquilae, which is Latinised from α Aquilae and abbreviated Alpha Aql or α Aql. Altair is an A-type main-sequence star with an apparent visual magnitude of 0.77 and is one of th... | Altair | Astronomy | 1,966 |
1,318,592 | https://en.wikipedia.org/wiki/172%20%28number%29 | 172 (one hundred [and] seventy-two) is the natural number following 171 and preceding 173.
In mathematics
172 is a part of a near-miss for being a counterexample to Fermat's last theorem, as 1353 + 1383 = 1723 − 1. This is only the third near-miss of this form, two cubes adding to one less than a third cube. It is als... | 172 (number) | Mathematics | 124 |
3,838,839 | https://en.wikipedia.org/wiki/Shattuckite | Shattuckite is a copper silicate hydroxide mineral with formula Cu5(SiO3)4(OH)2. It crystallizes in the orthorhombic – dipyramidal crystal system and usually occurs in a granular massive form and also as fibrous acicular crystals. It is closely allied to plancheite in structure and appearance.
Shattuckite is a relati... | Shattuckite | Physics | 219 |
48,432,365 | https://en.wikipedia.org/wiki/Leccinum%20albostipitatum | Leccinum albostipitatum is a species of bolete fungus in the family Boletaceae. This fungus is commonly found in Europe, where it grows in association with poplar. It was described as new to science in 2005.
References
Fungi described in 2005
Fungi of Europe
albostipitatum
Taxa named by Machiel Noordeloos
Fungus spec... | Leccinum albostipitatum | Biology | 75 |
27,953,209 | https://en.wikipedia.org/wiki/WALP%20peptide | WALP peptides are a class of synthesized, membrane-spanning α-helices composed of tryptophan (W), alanine (A), and leucine (L) amino acids. They are designed to study properties of proteins in lipid membranes such as orientation, extent of insertion, and hydrophobic mismatch.
Significance
The transmembrane region of m... | WALP peptide | Chemistry | 464 |
24,748,949 | https://en.wikipedia.org/wiki/Colorimeter%20%28chemistry%29 | A colorimeter is a device used in colorimetry that measures the absorbance of particular wavelengths of light by a specific solution. It is commonly used to determine the concentration of a known solute in a given solution by the application of the Beer–Lambert law, which states that the concentration of a solute is pr... | Colorimeter (chemistry) | Physics,Chemistry,Technology,Engineering | 601 |
2,854,329 | https://en.wikipedia.org/wiki/Oxymetholone | Oxymetholone, sold under the brand names Anadrol and Anapolon among others, is an androgen and anabolic steroid (AAS) medication which is used primarily in the treatment of anemia. It is also used to treat osteoporosis, HIV/AIDS wasting syndrome, and to promote weight gain and muscle growth in certain situations. It is... | Oxymetholone | Chemistry | 1,699 |
38,728,858 | https://en.wikipedia.org/wiki/Distance%20between%20two%20parallel%20lines | The distance between two parallel lines in the plane is the minimum distance between any two points.
Formula and proof
Because the lines are parallel, the perpendicular distance between them is a constant, so it does not matter which point is chosen to measure the distance. Given the equations of two non-vertical par... | Distance between two parallel lines | Physics,Mathematics | 320 |
14,429,281 | https://en.wikipedia.org/wiki/List%20of%20IEEE%20Milestones | The following list of the Institute of Electrical and Electronics Engineers (IEEE) milestones represents key historical achievements in electrical and electronic engineering.
Prior to 1800
1751 – Book Experiments and Observations on Electricity by Benjamin Franklin
1757–1775 – Benjamin Franklin's Work in London
17... | List of IEEE Milestones | Engineering | 2,900 |
23,833,593 | https://en.wikipedia.org/wiki/Gymnopilus%20earlei | Gymnopilus earlei is a species of mushroom in the family Hymenogastraceae.
Description
The cap is in diameter.
Habitat and distribution
Gymnopilus earlei has been found on coconut logs in Jamaica, during October to November.
See also
List of Gymnopilus species
References
External links
Gymnopilus earlei at Index... | Gymnopilus earlei | Biology | 94 |
5,312,299 | https://en.wikipedia.org/wiki/Impedance%20cardiography | Impedance cardiography (ICG) is a non-invasive technology measuring total electrical conductivity of the thorax and its changes in time to process continuously a number of cardiodynamic parameters, such as stroke volume (SV), heart rate (HR), cardiac output (CO), ventricular ejection time (VET), pre-ejection period and... | Impedance cardiography | Physics,Technology,Engineering,Biology | 2,413 |
21,131,668 | https://en.wikipedia.org/wiki/Costume%20coordination | Costume coordination is a method of dressing actors, employees or a person or group for theatrical productions and any venue requiring a fully realized character. It consists of pulling or renting existing stock clothing and costumes, altering them as needed to be used as stage clothes in a theatrical production, overs... | Costume coordination | Engineering | 2,121 |
9,936,460 | https://en.wikipedia.org/wiki/Dole%20effect | The Dole effect, named after Malcolm Dole, describes an inequality in the ratio of the heavy isotope 18O (a "standard" oxygen atom with two additional neutrons) to the lighter 16O, measured in the atmosphere and seawater. This ratio is usually denoted δ18O.
It was noticed in 1935 that air contained more 18O than seawa... | Dole effect | Chemistry,Biology | 601 |
900,160 | https://en.wikipedia.org/wiki/Internal%20wave | Internal waves are gravity waves that oscillate within a fluid medium, rather than on its surface. To exist, the fluid must be stratified: the density must change (continuously or discontinuously) with depth/height due to changes, for example, in temperature and/or salinity. If the density changes over a small vertical... | Internal wave | Physics,Chemistry,Engineering | 2,960 |
35,831,840 | https://en.wikipedia.org/wiki/Sippewissett%20microbial%20mat | The Sippewissett microbial mat is a microbial mat in the Sippewissett Salt Marsh located along the lower eastern Buzzards Bay shoreline of Cape Cod, about 5 miles north of Woods Hole and 1 mile southwest of West Falmouth, Massachusetts, in the United States. The marsh has two regions, the Great Sippewisset Marsh to the... | Sippewissett microbial mat | Environmental_science | 1,213 |
39,758,769 | https://en.wikipedia.org/wiki/Long-term%20support | Long-term support (LTS) is a product lifecycle management policy in which a stable release of computer software is maintained for a longer period of time than the standard edition. The term is typically reserved for open-source software, where it describes a software edition that is supported for months or years longer... | Long-term support | Engineering | 775 |
46,818,444 | https://en.wikipedia.org/wiki/Ceratocystis%20corymbiicola | Ceratocystis corymbiicola is a plant pathogen, affecting Australian Eucalyptus species. It was first isolated from tree wounds and nitidulid beetles associated with these wounds.
References
Further reading
External links
MycoBank
Microascales
Fungi described in 2012
Fungus species | Ceratocystis corymbiicola | Biology | 57 |
15,245,959 | https://en.wikipedia.org/wiki/KCND1 | Potassium voltage-gated channel, Shal-related subfamily, member 1 (KCND1), also known as Kv4.1, is a human gene.
Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmit... | KCND1 | Chemistry | 231 |
45,337 | https://en.wikipedia.org/wiki/Nash%20equilibrium | In game theory, the Nash equilibrium is the most commonly-used solution concept for non-cooperative games. A Nash equilibrium is a situation where no player could gain by changing their own strategy (holding all other players' strategies fixed). The idea of Nash equilibrium dates back to the time of Cournot, who in 183... | Nash equilibrium | Mathematics | 7,562 |
29,343,046 | https://en.wikipedia.org/wiki/Cleanliness%20suitability | Cleanliness suitability describes the suitability of operating materials and ventilation and air conditioning components for use in cleanrooms where the air cleanliness and other parameters are controlled by way of technical regulations. Tests are carried out to determine this.
Trends such as the miniaturization of st... | Cleanliness suitability | Chemistry,Biology | 433 |
55,335,877 | https://en.wikipedia.org/wiki/Ceriporia%20amazonica | Ceriporia amazonica is a species of crust fungus in the family Irpicaceae. Found in Brazil, it was described as new to science in 2014. The fungus is characterized by its salmon-coloured pore surface with angular pores numbering 1–3 per millimetre, and small ellipsoid spores (measuring 2–3 μm) that are among the smalle... | Ceriporia amazonica | Biology | 127 |
77,684,881 | https://en.wikipedia.org/wiki/Sodium%20ferrate | Sodium ferrate is a chemical compound with the formula Na2FeO4. It is a sodium salt of ferric acid that is very difficult to obtain. In most iron compounds, the metal has an oxidation state of +2 or +3. Ferric acid, with an oxidation state of +6, is extremely unstable and does not exist under normal conditions. Therefo... | Sodium ferrate | Chemistry | 1,698 |
12,570,345 | https://en.wikipedia.org/wiki/30%20Vulpeculae | 30 Vulpeculae is a binary star system in the northern constellation of Vulpecula, located mid-way between Epsilon Cygni and a diamond-shaped asterism in Delphinus. It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 4.91. The system is located approximately 350 lig... | 30 Vulpeculae | Astronomy | 335 |
681,962 | https://en.wikipedia.org/wiki/Coupling%20constant | In physics, a coupling constant or gauge coupling parameter (or, more simply, a coupling), is a number that determines the strength of the force exerted in an interaction. Originally, the coupling constant related the force acting between two static bodies to the "charges" of the bodies (i.e. the electric charge for e... | Coupling constant | Physics | 2,734 |
55,407,740 | https://en.wikipedia.org/wiki/Gas%20immersion%20laser%20doping | Gas immersion laser doping (GILD) is a method of doping a semiconductor material such as silicon.
In the case of doping silicon with boron to create a P-type semiconductor material, a thin wafer of silicon is placed in a containment chamber and is immersed in boron gas. A pulsed laser is directed at the silicon wafer ... | Gas immersion laser doping | Physics,Materials_science | 139 |
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