id int64 39 79M | url stringlengths 32 168 | text stringlengths 7 145k | source stringlengths 2 105 | categories listlengths 1 6 | token_count int64 3 32.2k | subcategories listlengths 0 27 |
|---|---|---|---|---|---|---|
21,726,554 | https://en.wikipedia.org/wiki/Laves%20phase | Laves phases are intermetallic phases that have composition AB2 and are named for Fritz Laves who first described them. The phases are classified on the basis of geometry alone. While the problem of packing spheres of equal size has been well-studied since Gauss, Laves phases are the result of his investigations into ... | Laves phase | [
"Physics",
"Chemistry",
"Materials_science"
] | 387 | [
"Inorganic compounds",
"Metallurgy",
"Crystal structure types",
"Crystallography",
"Intermetallics",
"Condensed matter physics",
"Alloys"
] |
21,727,396 | https://en.wikipedia.org/wiki/Double%20group | The concept of a double group was introduced by Hans Bethe for the quantitative treatment of magnetochemistry. Because the fermions' phase changes with 360-degree rotation, enhanced symmetry groups that describe band degeneracy and topological properties of magnonic systems are needed, which depend not only on geometri... | Double group | [
"Physics",
"Chemistry",
"Materials_science",
"Mathematics",
"Engineering"
] | 1,543 | [
"Applied and interdisciplinary physics",
"Molecular physics",
"Materials science",
"Group theory",
"Theoretical chemistry",
"Fields of abstract algebra",
" molecular",
"nan",
"Atomic",
" and optical physics"
] |
21,728,202 | https://en.wikipedia.org/wiki/Flexoelectricity | Flexoelectricity is a property of a dielectric material where there is coupling between electrical polarization and a strain gradient. This phenomenon is closely related to piezoelectricity, but while piezoelectricity refers to polarization due to uniform strain, flexoelectricity specifically involves polarization due ... | Flexoelectricity | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 377 | [
"Phases of matter",
"Electric and magnetic fields in matter",
"Materials science",
"Condensed matter physics",
"Matter"
] |
21,728,805 | https://en.wikipedia.org/wiki/Pyrotechnic%20valves | A pyrotechnic valve, also explosive actuated valve, short pyro valve or pyrovalve is a one time use propulsion component often used to control propellant or pressurant systems aboard spacecraft or space probes. The device is activated by an electric signal, upon which one or several small explosive charges are ignited.... | Pyrotechnic valves | [
"Physics",
"Chemistry"
] | 462 | [
"Physical systems",
"Valves",
"Hydraulics",
"Piping"
] |
21,728,926 | https://en.wikipedia.org/wiki/Jones%20reductor | A Jones reductor is a device used to reduce aqueous solutions of metal ions. The active component is a zinc amalgam. Jones reductors have been used for preparing solutions of titanium(III), vanadium(II), chromium(II), molybdenum(III), niobium(III), europium(II), and uranium(III).
Preparation and use
Amalgamated zinc i... | Jones reductor | [
"Chemistry"
] | 354 | [
"Redox",
"nan",
"Reducing agents"
] |
33,324,707 | https://en.wikipedia.org/wiki/Laminar%20flame%20speed | Laminar flame speed is an intrinsic characteristic of premixed combustible mixtures. It is the speed at which an un-stretched laminar flame will propagate through a quiescent mixture of unburned reactants. Laminar flame speed is given the symbol sL. According to the thermal flame theory of Ernest-François Mallard an... | Laminar flame speed | [
"Chemistry"
] | 320 | [
"Combustion"
] |
33,327,002 | https://en.wikipedia.org/wiki/Cabbeling | Cabbeling is when two separate water parcels mix to form a third which sinks below both parents. The combined water parcel is denser than the original two water parcels.
The two parent water parcels may have the same density, but they have different properties; for instance, different salinities and temperatures. Seaw... | Cabbeling | [
"Physics",
"Engineering",
"Environmental_science"
] | 477 | [
"Hydrology",
"Applied and interdisciplinary physics",
"Oceanography",
"Civil engineering",
"Lakes",
"Fluid mechanics"
] |
33,329,683 | https://en.wikipedia.org/wiki/Spontaneous%20absolute%20asymmetric%20synthesis | Spontaneous absolute asymmetric synthesis is a chemical phenomenon that stochastically generates chirality based on autocatalysis and small fluctuations in the ratio of enantiomers present in a racemic mixture. In certain reactions which initially do not contain chiral information, stochastically distributed enantiomer... | Spontaneous absolute asymmetric synthesis | [
"Physics",
"Chemistry",
"Biology"
] | 147 | [
"Origin of life",
"Stereochemistry",
"Space",
"Stereochemistry stubs",
"nan",
"Biological hypotheses",
"Spacetime"
] |
33,329,948 | https://en.wikipedia.org/wiki/Transport%20coefficient | A transport coefficient measures how rapidly a perturbed system returns to equilibrium.
The transport coefficients occur in transport phenomenon with transport laws
where:
is a flux of the property
the transport coefficient of this property
, the gradient force which acts on the property .
Transport coeff... | Transport coefficient | [
"Physics",
"Chemistry",
"Mathematics"
] | 240 | [
"Statistical mechanics",
"Thermodynamics",
"Dynamical systems"
] |
33,331,939 | https://en.wikipedia.org/wiki/Kondo%20model | The Kondo model (sometimes referred to as the s-d model) is a model for a single localized quantum impurity coupled to a large reservoir of delocalized and noninteracting electrons. The quantum impurity is represented by a spin-1/2 particle, and is coupled to a continuous band of noninteracting electrons by an antiferr... | Kondo model | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 582 | [
"Phases of matter",
"Quantum mechanics",
"Materials science",
"Quantum magnetism",
"Condensed matter physics",
"Matter"
] |
43,082,178 | https://en.wikipedia.org/wiki/Thickness%20%28graph%20theory%29 | In graph theory, the thickness of a graph is the minimum number of planar graphs into which the edges of can be partitioned. That is, if there exists a collection of planar graphs, all having the same set of vertices, such that the union of these planar graphs is , then the thickness of is at most . In other words,... | Thickness (graph theory) | [
"Mathematics"
] | 841 | [
"Planar graphs",
"Graph theory",
"Computational problems",
"Graph invariants",
"Mathematical relations",
"Planes (geometry)",
"Mathematical problems",
"NP-complete problems"
] |
43,082,400 | https://en.wikipedia.org/wiki/Primula%20hortensis | Primula hortensis is a name which has been applied to various hybrids in the genus Primula, e.g. to Primula × polyantha Mill. by Focke and to Primula × pubescens by Wittstein. The name Primula hortensis is not an accepted taxon name, however.
Description
These flowers are yellowish-orange in colour.
References
hor... | Primula hortensis | [
"Biology"
] | 88 | [
"Set index articles on plants",
"Set index articles on organisms",
"Plants"
] |
43,082,530 | https://en.wikipedia.org/wiki/Ministry%20of%20Energy%2C%20Science%20%26%20Technology%20and%20Public%20Utilities | The Ministry of Energy, Science & Technology, and Public Utilities (Belize) was founded in 2012. The Ministry is currently divided into the Department of Geology and Petroleum, the Energy Unit and the Science and Technology Unit. The Ministry is represented by Senator Joy Grant and CEO Dr Colin Young, and has an office... | Ministry of Energy, Science & Technology and Public Utilities | [
"Engineering"
] | 426 | [
"Energy organizations",
"Energy ministries"
] |
44,789,336 | https://en.wikipedia.org/wiki/Blackman%27s%20theorem | Blackman's theorem is a general procedure for calculating the change in an impedance due to feedback in a circuit. It was published by Ralph Beebe Blackman in 1943, was connected to signal-flow analysis by John Choma, and was made popular in the extra element theorem by R. D. Middlebrook and the asymptotic gain model o... | Blackman's theorem | [
"Technology",
"Engineering"
] | 355 | [
"Telecommunications engineering",
"Computer engineering",
"Signal processing",
"Control engineering",
"Electronic amplifiers",
"Amplifiers"
] |
44,796,138 | https://en.wikipedia.org/wiki/Flask%20%28unit%29 | Flask is a British unit of mass or weight in the avoirdupois system, used to measure mercury. It is defined as . Near room temperature, a flask of mercury occupies a volume of approximately .
Conversion
1 flask (mercury) ≡ 76 lb
1 flask (mercury) ≡ 34.47302012 kg
References
Units of mass
Customary units of measure... | Flask (unit) | [
"Physics",
"Mathematics"
] | 83 | [
"Matter",
"Quantity",
"Units of mass",
"Mass",
"Customary units of measurement",
"Units of measurement"
] |
44,797,598 | https://en.wikipedia.org/wiki/Journal%20of%20Environmental%20Radioactivity | Journal of Environmental Radioactivity is a monthly peer-reviewed scientific journal on environmental radioactivity and radioecology. It was proposed and started by Founding Editor Murdoch Baxter in 1984 and is published by Elsevier. Its current editor-in-chief is Stephen C. Sheppard (ECOMatters Inc.) and is an affilia... | Journal of Environmental Radioactivity | [
"Physics",
"Chemistry",
"Environmental_science"
] | 178 | [
"Ecology journals",
"Environmental isotopes",
"Isotopes",
"Environmental science journals",
"Nuclear chemistry stubs",
"Nuclear and atomic physics stubs",
"Geochemistry stubs",
"Nuclear physics",
"Environmental science journal stubs",
"Radioactivity"
] |
44,797,697 | https://en.wikipedia.org/wiki/Journal%20of%20Nuclear%20Materials | The Journal of Nuclear Materials is a monthly peer-reviewed scientific journal on materials research for accelerator physics, nuclear power generation and fuel cycle applications. It was established in 1959 and is published by Elsevier. The current editor-in-chief is Gary S. Was (University of Michigan).
Abstracting a... | Journal of Nuclear Materials | [
"Materials_science",
"Engineering"
] | 151 | [
"Materials science stubs",
"Materials science journals",
"Materials science journal stubs",
"Materials science"
] |
30,818,148 | https://en.wikipedia.org/wiki/Sulfacytine | Sulfacytine is a short-acting sulfonamide antibiotic, taken orally for treatment against bacterial infections. Sulfonamides, as a group of antibiotics, work by inhibiting the bacterial synthesis of folate. In 2006, the drug was discontinued.
References
Sulfonamide antibiotics
Abandoned drugs
4-Aminophenyl compounds | Sulfacytine | [
"Chemistry"
] | 72 | [
"Drug safety",
"Abandoned drugs"
] |
30,818,571 | https://en.wikipedia.org/wiki/Wagner%27s%20gene%20network%20model | 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 in... | Wagner's gene network model | [
"Chemistry",
"Biology"
] | 856 | [
"Gene expression",
"Molecular genetics",
"Cellular processes",
"Molecular biology",
"Biochemistry",
"Systems biology"
] |
30,820,704 | https://en.wikipedia.org/wiki/Evolution%20by%20gene%20duplication | Evolution by gene duplication is an event by which a gene or part of a gene can have two identical copies that can not be distinguished from each other. This phenomenon is understood to be an important source of novelty in evolution, providing for an expanded repertoire of molecular activities. The underlying mutati... | Evolution by gene duplication | [
"Chemistry",
"Biology"
] | 2,083 | [
"Evolutionary processes",
"Molecular genetics",
"Molecular evolution",
"Molecular biology"
] |
27,974,163 | https://en.wikipedia.org/wiki/Project%20523 | Project 523 () is a code name for a 1967 secret military project of the People's Republic of China to find antimalarial medications. Named after the date the project launched, 23 May, it addressed malaria, an important threat in the Vietnam War. At the behest of Ho Chi Minh, Prime Minister of North Vietnam, Zhou Enlai,... | Project 523 | [
"Chemistry",
"Biology"
] | 2,403 | [
"Life sciences industry",
"Medicinal chemistry",
"Drug discovery"
] |
27,976,434 | https://en.wikipedia.org/wiki/FlexGen%20B.V. | FlexGen was a biotechnology company based in Leiden, Netherlands. FlexGen was a spin-off from Leiden University Medical Centre and Dutch Space (part of EADS) and had proprietary technologies for laser based in-situ synthesis of oligonucleotides and other biomolecules. On 21 December 2015, Flexgen Bv in Leiden (South Ho... | FlexGen B.V. | [
"Chemistry",
"Materials_science",
"Biology"
] | 673 | [
"Biochemistry methods",
"Genetics techniques",
"Microtechnology",
"Microarrays",
"Bioinformatics",
"Molecular biology techniques"
] |
27,977,609 | https://en.wikipedia.org/wiki/Comprehensive%20two-dimensional%20gas%20chromatography | Comprehensive two-dimensional gas chromatography, or GC×GC, is a multidimensional gas chromatography technique that was originally described in 1984 by J. Calvin Giddings and first successfully implemented in 1991 by John Phillips and his student Zaiyou Liu.
GC×GC utilizes two different columns with two different sta... | Comprehensive two-dimensional gas chromatography | [
"Chemistry"
] | 1,579 | [
"Chromatography",
"Gas chromatography"
] |
27,980,263 | https://en.wikipedia.org/wiki/Immunogold%20labelling | Immunogold labeling or immunogold staining (IGS) is a staining technique used in electron microscopy. This staining technique is an equivalent of the indirect immunofluorescence technique for visible light. Colloidal gold particles are most often attached to secondary antibodies which are in turn attached to primary an... | Immunogold labelling | [
"Chemistry",
"Biology"
] | 899 | [
"Biochemistry",
"nan",
"Microscopy"
] |
21,731,590 | https://en.wikipedia.org/wiki/RNA-Seq | RNA-Seq (named as an abbreviation of RNA sequencing) is a technique that uses next-generation sequencing to reveal the presence and quantity of RNA molecules in a biological sample, providing a snapshot of gene expression in the sample, also known as transcriptome.
Specifically, RNA-Seq facilitates the ability to look... | RNA-Seq | [
"Chemistry",
"Biology"
] | 7,374 | [
"Genetics techniques",
"Gene expression",
"RNA sequencing",
"Molecular biology techniques",
"Molecular genetics",
"Cellular processes",
"Molecular biology",
"Biochemistry"
] |
26,096,136 | https://en.wikipedia.org/wiki/Johari%E2%80%93Goldstein%20relaxation | Johari–Goldstein relaxation, also known as the JG β-relaxation, is a universal property of glasses and certain other disordered materials.
Proposed in 1969 by Martin Goldstein, JG β-relaxation were described as a secondary relaxation mechanism required to explain the viscosity behavior of liquids approaching the glas... | Johari–Goldstein relaxation | [
"Physics",
"Chemistry",
"Materials_science",
"Mathematics"
] | 634 | [
"Physical phenomena",
"Phase transitions",
"Glass",
"Unsolved problems in physics",
"Critical phenomena",
"Phases of matter",
"Homogeneous chemical mixtures",
"Condensed matter physics",
"Statistical mechanics",
"Amorphous solids",
"Matter",
"Dynamical systems"
] |
26,099,835 | https://en.wikipedia.org/wiki/C5H8N2O5 | {{DISPLAYTITLE:C5H8N2O5}}
The molecular formula C5H8N2O5 (molar mass: 176.13 g/mol, exact mass: 176.0433 u) may refer to:
Carbamoyl aspartic acid (or ureidosuccinic acid)
Oxalyldiaminopropionic acid | C5H8N2O5 | [
"Chemistry"
] | 81 | [
"Isomerism",
"Set index articles on molecular formulas"
] |
26,099,892 | https://en.wikipedia.org/wiki/C6H10N2O5 | {{DISPLAYTITLE:C6H10N2O5}}
The molecular formula C6H10N2O5 may refer to:
ADA (buffer), a zwitterionic organic chemical buffering agent
Carglumic acid, an orphan drug marketed by Orphan Europe under the trade name Carbaglu | C6H10N2O5 | [
"Chemistry"
] | 69 | [
"Isomerism",
"Set index articles on molecular formulas"
] |
26,102,914 | https://en.wikipedia.org/wiki/Head%20grammar | Head grammar (HG) is a grammar formalism introduced in Carl Pollard (1984) as an extension of the context-free grammar class of grammars. Head grammar is therefore a type of phrase structure grammar, as opposed to a dependency grammar. The class of head grammars is a subset of the linear context-free rewriting systems.... | Head grammar | [
"Mathematics"
] | 443 | [
"Formal languages",
"Mathematical logic"
] |
26,102,963 | https://en.wikipedia.org/wiki/Cybernetical%20physics | Cybernetical physics is a scientific area on the border of cybernetics and physics which studies physical systems with cybernetical methods. Cybernetical methods are understood as methods developed within control theory, information theory, systems theory and related areas: control design, estimation, identification, ... | Cybernetical physics | [
"Physics"
] | 3,244 | [
"Applied and interdisciplinary physics",
"Computational physics"
] |
26,103,936 | https://en.wikipedia.org/wiki/Integrated%20Biological%20Detection%20System | The Integrated Biological Detection System is a system used by the British Army and Royal Air Force for detecting Chemical, biological, radiological, and nuclear agents or elements.
The Integrated Biological Detection System can provide early warning of a chemical or biological warfare attack and is in service with th... | Integrated Biological Detection System | [
"Chemistry",
"Biology",
"Environmental_science"
] | 178 | [
"Toxicology in the United Kingdom",
"Toxicology",
"nan",
"Biological warfare"
] |
26,104,444 | https://en.wikipedia.org/wiki/Water%20tariff | A water tariff (often called water rate in the United States and Canada) is a price assigned to water supplied by a public utility through a piped network to its customers. The term is also often applied to wastewater tariffs. Water and wastewater tariffs are not charged for water itself, but to recover the costs of wa... | Water tariff | [
"Chemistry",
"Engineering",
"Environmental_science"
] | 3,669 | [
"Hydrology",
"Water supply",
"Environmental engineering"
] |
26,108,124 | https://en.wikipedia.org/wiki/Gravity%20feed | Gravity feed is the use of earth's gravity to move something (usually a liquid) from one place to another. It is a simple means of moving a liquid without the use of a pump. A common application is the supply of fuel to an internal combustion engine by placing the fuel tank above the engine, e.g. in motorcycles, lawn... | Gravity feed | [
"Chemistry",
"Engineering"
] | 198 | [
"Piping",
"Chemical engineering",
"Fluid dynamics stubs",
"Fluid dynamics"
] |
26,108,571 | https://en.wikipedia.org/wiki/Mathematical%20tile | Mathematical tiles are tiles which were used extensively as a building material in the southeastern counties of England—especially East Sussex and Kent—in the 18th and early 19th centuries. They were laid on the exterior of timber-framed buildings as an alternative to brickwork, which their appearance closely resembled... | Mathematical tile | [
"Physics",
"Engineering"
] | 1,106 | [
"Building engineering",
"Construction",
"Materials",
"Building materials",
"Matter",
"Architecture"
] |
26,108,747 | https://en.wikipedia.org/wiki/Relieving%20tackle | Relieving tackle is tackle employing one or more lines attached to a vessel's steering mechanism, to assist or substitute for the whipstaff or ship's wheel in steering the craft. This enabled the helmsman to maintain control in heavy weather, when the rudder is under more stress and requires greater effort to handle, ... | Relieving tackle | [
"Physics",
"Technology"
] | 309 | [
"Simple machines",
"Machines",
"Physical systems"
] |
26,109,619 | https://en.wikipedia.org/wiki/Thermosonic%20bonding | Thermosonic bonding is widely used to wire bond silicon integrated circuits into computers. Alexander Coucoulas was named "Father of Thermosonic Bonding" by George Harman, the world's foremost authority on wire bonding, where he referenced Coucoulas's leading edge publications in his book, Wire Bonding In Microelectron... | Thermosonic bonding | [
"Materials_science"
] | 1,305 | [
"Semiconductor device fabrication",
"Packaging (microfabrication)",
"Microtechnology"
] |
41,585,022 | https://en.wikipedia.org/wiki/Radiofluorination | Radiofluorination is the process by which a radioactive isotope of fluorine is attached to a molecule and is preferably performed by nucleophilic substitution using nitro or halogens as leaving groups. Fluorine-18 is the most common isotope used for this procedure. This is due to its 97% positron emission and relative... | Radiofluorination | [
"Chemistry"
] | 1,478 | [
"Chemicals in medicine",
"Radiopharmaceuticals",
"Medicinal radiochemistry"
] |
41,585,434 | https://en.wikipedia.org/wiki/Anti-miRNA%20oligonucleotides | Anti-miRNA oligonucleotides (also known as AMOs) have many uses in cellular mechanics. These synthetically designed molecules are used to neutralize microRNA (miRNA) function in cells for desired responses. miRNA are complementary sequences (≈22 bp) to mRNA that are involved in the cleavage of RNA or the suppression of... | Anti-miRNA oligonucleotides | [
"Chemistry"
] | 3,079 | [
"Biomolecules by chemical classification",
"Nucleic acids"
] |
41,588,297 | https://en.wikipedia.org/wiki/Mulling%20%28spectroscopy%29 | Mulling is the process of grinding up a sample into fine powder through mortar and pestle that is dispersed in a paraffin for infrared spectroscopy.
Sample preparation
Using a nonporous ceramic mortar and pestle, a small quantity of the solid sample is ground up until the sample is exceedingly fine and has a glassy ap... | Mulling (spectroscopy) | [
"Physics",
"Chemistry"
] | 382 | [
"Infrared spectroscopy",
"Spectroscopy",
"Spectrum (physical sciences)"
] |
5,360,730 | https://en.wikipedia.org/wiki/Titanium%28III%29%20oxide | Titanium(III) oxide is the inorganic compound with the formula Ti2O3. A black semiconducting solid, it is prepared by reducing titanium dioxide with titanium metal at 1600 °C.
Ti2O3 adopts the Al2O3 (corundum) structure. It is reactive with oxidising agents. At around 200 °C, there is a transition from semiconducting ... | Titanium(III) oxide | [
"Chemistry"
] | 142 | [
"Semiconductor materials",
"Inorganic compounds",
"Inorganic compound stubs"
] |
5,365,395 | https://en.wikipedia.org/wiki/Incentive%20compatibility | In game theory and economics, a mechanism is called incentive-compatible (IC) if every participant can achieve their own best outcome by reporting their true preferences. For example, there is incentive compatibility if high-risk clients are better off in identifying themselves as high-risk to insurance firms, who only... | Incentive compatibility | [
"Mathematics"
] | 608 | [
"Game theory",
"Mechanism design"
] |
5,365,936 | https://en.wikipedia.org/wiki/Unimpaired%20runoff | Unimpaired runoff, also known as full natural flow, is a hydrology term for the natural runoff of a watershed or waterbody that would have occurred under current land use but without dams or diversions. Flow readings from river gauges are influenced by upstream diversions, impoundments, and many other alternations of ... | Unimpaired runoff | [
"Physics",
"Chemistry",
"Engineering",
"Environmental_science"
] | 406 | [
"Hydrology",
"Physical systems",
"Hydraulics",
"Civil engineering",
"Environmental engineering",
"Hydraulic engineering"
] |
35,971,220 | https://en.wikipedia.org/wiki/C9H11NO | {{DISPLAYTITLE:C9H11NO}}
The molecular formula C9H11NO (molar mass: 149.19 g/mol, exact mass: 149.0841 u) may refer to:
4'-Aminopropiophenone
Cathinone
para-Dimethylaminobenzaldehyde
Molecular formulas | C9H11NO | [
"Physics",
"Chemistry"
] | 73 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
35,971,482 | https://en.wikipedia.org/wiki/Day%20length%20fluctuations | The length of the day (LOD), which has increased over the long term of Earth's history due to tidal effects, is also subject to fluctuations on a shorter scale of time. Exact measurements of time by atomic clocks and satellite laser ranging have revealed that the LOD is subject to a number of different changes. These s... | Day length fluctuations | [
"Physics",
"Astronomy",
"Mathematics"
] | 1,282 | [
"Physical phenomena",
"Earth phenomena",
"Applied mathematics",
"Astrometry",
"Meteorological phenomena",
"Geodesy",
"Astronomical sub-disciplines"
] |
35,972,869 | https://en.wikipedia.org/wiki/List%20of%20the%20largest%20optical%20telescopes%20in%20North%20America | This is a list of the largest optical telescopes in North America.
21st century
A list of optical telescopes located in North America by aperture.
Refractors
Some of the big traditional refracting lens telescopes in North America:
Biggest telescopes in 1950
Optical telescopes only
Biggest telescopes in 1900
Bigges... | List of the largest optical telescopes in North America | [
"Astronomy"
] | 114 | [
"Astronomy-related lists",
"Lists of telescopes"
] |
35,974,447 | https://en.wikipedia.org/wiki/Cyproterone%20acetate | Cyproterone acetate (CPA), sold alone under the brand name Androcur or with ethinylestradiol under the brand names Diane or Diane-35 among others, is an antiandrogen and progestin medication used in the treatment of androgen-dependent conditions such as acne, excessive body hair growth, early puberty, and prostate canc... | Cyproterone acetate | [
"Chemistry"
] | 7,244 | [
"Ketones",
"Functional groups"
] |
35,975,525 | https://en.wikipedia.org/wiki/Quantifier%20rank | In mathematical logic, the quantifier rank of a formula is the depth of nesting of its quantifiers. It plays an essential role in model theory.
Notice that the quantifier rank is a property of the formula itself (i.e. the expression in a language). Thus two logically equivalent formulae can have different quantifier ... | Quantifier rank | [
"Mathematics"
] | 365 | [
"Predicate logic",
"Mathematical logic",
"Basic concepts in set theory",
"Finite model theory",
"Model theory",
"Mathematical logic stubs",
"Quantifier (logic)"
] |
35,976,444 | https://en.wikipedia.org/wiki/Wehrl%20entropy | In quantum information theory, the Wehrl entropy, named after Alfred Wehrl, is a classical entropy of a quantum-mechanical density matrix. It is a type of quasi-entropy defined for the Husimi Q representation of the phase-space quasiprobability distribution. See for a comprehensive review of basic properties of classi... | Wehrl entropy | [
"Physics",
"Mathematics"
] | 1,428 | [
"Physical quantities",
"Applied mathematics",
"Theoretical physics",
"Entropy",
"Quantum mechanical entropy",
"Mathematical physics"
] |
31,775,773 | https://en.wikipedia.org/wiki/Brjuno%20number | In mathematics, a Brjuno number (sometimes spelled Bruno or Bryuno) is a special type of irrational number named for Russian mathematician Alexander Bruno, who introduced them in .
Formal definition
An irrational number is called a Brjuno number when the infinite sum
converges to a finite number.
Here:
is the d... | Brjuno number | [
"Physics",
"Mathematics"
] | 519 | [
"Discrete mathematics",
"Mechanics",
"Number theory",
"Dynamical systems"
] |
31,778,638 | https://en.wikipedia.org/wiki/File%20dynamics | The term file dynamics is the motion of many particles in a narrow channel.
In science: in chemistry, physics, mathematics and related fields, file dynamics (sometimes called, single file dynamics) is the diffusion of N (N → ∞) identical Brownian hard spheres in a quasi-one-dimensional channel of length L (L → ∞), suc... | File dynamics | [
"Physics",
"Chemistry"
] | 2,280 | [
"Transport phenomena",
"Physical phenomena",
"Statistical mechanics",
"Diffusion"
] |
31,781,064 | https://en.wikipedia.org/wiki/Spin%20engineering | Spin engineering describes the control and manipulation of quantum spin systems to develop devices and materials. This includes the use of the spin degrees of freedom as a probe for spin based phenomena.
Because of the basic importance of quantum spin for physical and chemical processes, spin engineering is relevant ... | Spin engineering | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 1,048 | [
"Applied and interdisciplinary physics",
"Quantum chemistry",
"Spintronics",
"Materials science",
"Quantum mechanics",
"Theoretical chemistry",
"Condensed matter physics",
" molecular",
"nan",
"Atomic",
" and optical physics"
] |
37,395,056 | https://en.wikipedia.org/wiki/American%20Society%20of%20Professional%20Estimators | ASPE is the American Society of Professional Estimators. It was founded in 1956 by about 20 cost estimators in Los Angeles, California. In 1974, there were 10 chapters totalling 600 members. By 1977, there were 23 chapters totalling 1500 members. The society's web page states that there are thousands of members in 65 c... | American Society of Professional Estimators | [
"Engineering"
] | 215 | [
"Cost engineering",
"Construction organizations",
"Construction"
] |
37,395,415 | https://en.wikipedia.org/wiki/Peniche%20%28fluid%20dynamics%29 | A peniche (or stand-off) is material inserted between a half-model, often of an airplane, and the wall of a wind tunnel. Péniche is a French nautical term meaning barge. The purpose of the peniche is to remove or reduce the influence of the boundary layer on the half-model. The effect of the peniche itself in fluid dyn... | Peniche (fluid dynamics) | [
"Chemistry",
"Engineering"
] | 310 | [
"Piping",
"Chemical engineering",
"Fluid dynamics"
] |
37,397,029 | https://en.wikipedia.org/wiki/Point%E2%80%93line%E2%80%93plane%20postulate | In geometry, the point–line–plane postulate is a collection of assumptions (axioms) that can be used in a set of postulates for Euclidean geometry in two (plane geometry), three (solid geometry) or more dimensions.
Assumptions
The following are the assumptions of the point-line-plane postulate:
Unique line assumption.... | Point–line–plane postulate | [
"Mathematics"
] | 619 | [
"Foundations of geometry",
"Mathematical axioms"
] |
37,400,498 | https://en.wikipedia.org/wiki/Iliopectineal%20bursa | The iliopectineal bursa or the iliopsoas bursa is a large synovial bursa that separates the external surface of the hip joint capsule from the tendon of the iliopsoas muscle.
The most proximal of part the iliopectineal bursa lies on the iliopubic eminence of the superior pubic ramus. The iliopectineal bursa passes acr... | Iliopectineal bursa | [
"Biology"
] | 258 | [
"Organ systems",
"Musculoskeletal system"
] |
37,401,799 | https://en.wikipedia.org/wiki/Hiroomi%20Umezawa | (September 20, 1924 – March 24, 1995) was a physicist and Distinguished Professor in the Department of Physics at the University of Wisconsin–Milwaukee and later at the University of Alberta. He is known for his fundamental contributions to quantum field theory and for his work on quantum phenomena in relation to the m... | Hiroomi Umezawa | [
"Physics"
] | 863 | [
"Theoretical physics",
"Theoretical physicists"
] |
37,401,922 | https://en.wikipedia.org/wiki/C22H26O8 | {{DISPLAYTITLE:C22H26O8}}
The molecular formula C22H26O8 may refer to:
Sekikaic acid
Syringaresinol | C22H26O8 | [
"Chemistry"
] | 39 | [
"Isomerism",
"Set index articles on molecular formulas"
] |
38,838,646 | https://en.wikipedia.org/wiki/Non-autonomous%20system%20%28mathematics%29 | In mathematics, an autonomous system is a dynamic equation on a smooth manifold. A non-autonomous system is a dynamic equation on a smooth fiber bundle over . For instance, this is the case of non-autonomous mechanics.
An r-order differential equation on a fiber bundle is represented by a closed subbundle of a jet b... | Non-autonomous system (mathematics) | [
"Physics",
"Mathematics"
] | 333 | [
"Mathematical objects",
"Classical mechanics",
"Equations",
"Differential equations",
"Mechanics",
"Dynamical systems"
] |
38,840,063 | https://en.wikipedia.org/wiki/Cluster%20Innovation%20Centre | The Cluster Innovation Centre (DU CIC) is a Government of India funded centre established under the aegis of the University of Delhi. It was founded in 2011 by Prof. Dinesh Singh, the then Vice Chancellor of the University of Delhi, and introduced Innovation as a credit-based course for the first time in India.
Establ... | Cluster Innovation Centre | [
"Engineering"
] | 1,108 | [
"Engineering universities and colleges"
] |
38,840,645 | https://en.wikipedia.org/wiki/Paramagnetic%20nuclear%20magnetic%20resonance%20spectroscopy | Paramagnetic nuclear magnetic resonance spectroscopy refers to nuclear magnetic resonance (NMR) spectroscopy of paramagnetic compounds. Although most NMR measurements are conducted on diamagnetic compounds, paramagnetic samples are also amenable to analysis and give rise to special effects indicated by a wide chemical ... | Paramagnetic nuclear magnetic resonance spectroscopy | [
"Physics",
"Chemistry"
] | 900 | [
"Nuclear magnetic resonance",
"Spectroscopy",
"Spectrum (physical sciences)",
"Nuclear magnetic resonance spectroscopy"
] |
38,841,583 | https://en.wikipedia.org/wiki/Program%20on%20Energy%20Efficiency%20in%20Artisanal%20Brick%20Kilns%20in%20Latin%20America%20to%20Mitigate%20Climate%20Change | The Program on Energy Efficiency in Artisanal Brick Kilns in Latin America to Mitigate Climate Change (EELA) is a program of the Swiss Agency for Development and Cooperation (SDC) which is implemented by Swiss contact in conjunction with its partners in nine countries in Latin America. The objective is to mitigate clim... | Program on Energy Efficiency in Artisanal Brick Kilns in Latin America to Mitigate Climate Change | [
"Chemistry",
"Engineering"
] | 662 | [
"Sustainable building",
"Emissions reduction",
"Building engineering",
"Construction",
"Greenhouse gases"
] |
29,329,394 | https://en.wikipedia.org/wiki/Spurion | In theoretical physics, a spurion is a fictitious, auxiliary field in a quantum field theory that can be used to parameterize any symmetry breaking and to determine all operators invariant under the symmetry.
The procedure begins with finding a parameter that measures the amount of symmetry breaking. This parameter is... | Spurion | [
"Physics"
] | 344 | [
"Quantum field theory",
"Quantum mechanics",
"Quantum physics stubs"
] |
29,330,054 | https://en.wikipedia.org/wiki/Environmental%20error | An environmental error is an error in calculations that are being a part of observations due to environment. Any experiment performing anywhere in the universe has its surroundings, from which we cannot eliminate our system. The study of environmental effects has primary advantage of being able us to justify the fact t... | Environmental error | [
"Physics",
"Mathematics"
] | 149 | [
"Quantity",
"Physical quantities",
"Measurement",
"Size"
] |
40,158,142 | https://en.wikipedia.org/wiki/Nonlinear%20system%20identification | System identification is a method of identifying or measuring the mathematical model of a system from measurements of the system inputs and outputs. The applications of system identification include any system where the inputs and outputs can be measured and include industrial processes, control systems, economic data,... | Nonlinear system identification | [
"Physics",
"Mathematics"
] | 3,169 | [
"Nonlinear systems",
"Mechanics",
"Dynamical systems"
] |
40,159,314 | https://en.wikipedia.org/wiki/Relativistic%20chaos | In physics, relativistic chaos is the application of chaos theory to dynamical systems described primarily by general relativity, and also special relativity.
Barrow (1982) showed that the Einstein equations exhibit chaotic behaviour and modelled the Mixmaster universe as a dynamical system. Later work showed that rel... | Relativistic chaos | [
"Physics",
"Mathematics"
] | 84 | [
"Applied mathematics",
"Theoretical physics",
"General relativity",
"Relativity stubs",
"Theory of relativity",
"Mathematical physics"
] |
3,992,145 | https://en.wikipedia.org/wiki/HAZWOPER | Hazardous Waste Operations and Emergency Response (HAZWOPER; ) is a set of guidelines produced and maintained by the Occupational Safety and Health Administration which regulates hazardous waste operations and emergency services in the United States and its territories. With these guidelines, the U.S. government regul... | HAZWOPER | [
"Physics",
"Chemistry",
"Technology"
] | 1,401 | [
"Materials",
"Hazardous materials",
"Matter"
] |
3,992,146 | https://en.wikipedia.org/wiki/Zone%20valve | A zone valve is a specific type of valve used to control the flow of water or steam in a hydronic heating or cooling system.
In the interest of improving efficiency and occupant comfort, such systems are commonly divided up into multiple zones. For example, in a house, the main floor may be served by one heating zone ... | Zone valve | [
"Physics",
"Chemistry"
] | 1,008 | [
"Physical systems",
"Hydraulics",
"Fluid dynamics"
] |
3,994,748 | https://en.wikipedia.org/wiki/Carrier-to-noise%20ratio | In telecommunications, the carrier-to-noise ratio, often written CNR or C/N, is the signal-to-noise ratio (SNR) of a modulated signal. The term is used to distinguish the CNR of the radio frequency passband signal from the SNR of an analog base band message signal after demodulation. For example, with FM radio, the str... | Carrier-to-noise ratio | [
"Physics",
"Mathematics",
"Engineering"
] | 874 | [
"Physical phenomena",
"Spectrum (physical sciences)",
"Metrics",
"Radio frequency propagation",
"Engineering ratios",
"Quantity",
"Electromagnetic spectrum",
"Waves"
] |
3,997,849 | https://en.wikipedia.org/wiki/Uranyl%20sulfate | Uranyl sulfate describes a family of inorganic compounds with the formula UO2SO4(H2O)n. These salts consist of sulfate, the uranyl ion, and water. They are lemon-yellow solids. Uranyl sulfates are intermediates in some extraction methods used for uranium ores. These compounds can also take the form of an anhydrous salt... | Uranyl sulfate | [
"Physics",
"Chemistry"
] | 318 | [
"Sulfates",
"Salts",
"Materials",
"Nuclear materials",
"Matter"
] |
3,998,066 | https://en.wikipedia.org/wiki/Scalar%E2%80%93vector%E2%80%93tensor%20decomposition | In cosmological perturbation theory, the scalar–vector–tensor decomposition is a decomposition of the most general linearized perturbations of the Friedmann–Lemaître–Robertson–Walker metric into components according to their transformations under spatial rotations. It was first discovered by E. M. Lifshitz in 1946. It... | Scalar–vector–tensor decomposition | [
"Physics",
"Astronomy"
] | 625 | [
"Astronomical sub-disciplines",
"Theoretical physics",
"Physical cosmology",
"Astrophysics"
] |
3,998,079 | https://en.wikipedia.org/wiki/Servo%20drive | A servo drive is an electronic amplifier used to power electric servomechanisms.
A servo drive monitors the feedback signal from the servomechanism and continually adjusts for deviation from expected behavior.
Function
A servo drive receives a command signal from a control system, amplifies the signal, and transmits ... | Servo drive | [
"Engineering"
] | 763 | [
"Control devices",
"Control engineering"
] |
3,998,149 | https://en.wikipedia.org/wiki/Cosmological%20perturbation%20theory | In physical cosmology, cosmological perturbation theory is the theory by which the evolution of structure is understood in the Big Bang model. Cosmological perturbation theory may be broken into two categories: Newtonian or general relativistic. Each case uses its governing equations to compute gravitational and pressu... | Cosmological perturbation theory | [
"Physics",
"Astronomy"
] | 1,515 | [
"Astronomical sub-disciplines",
"Theoretical physics",
"Astrophysics",
"General relativity",
"Theory of relativity",
"Physical cosmology"
] |
3,998,467 | https://en.wikipedia.org/wiki/Resorcinarene | In chemistry, a resorcinarene (also resorcarene or calix[4]resorcinarene) is a macrocycle, or a cyclic oligomer, based on the condensation of resorcinol (1,3-dihydroxybenzene) and an aldehyde. Resorcinarenes are a type of calixarene. Other types of resorcinarenes include the related pyrogallolarenes and octahydroxypyri... | Resorcinarene | [
"Chemistry",
"Materials_science"
] | 803 | [
"Organic compounds",
"Macrocycles",
"nan",
"Nanotechnology",
"Supramolecular chemistry"
] |
3,998,660 | https://en.wikipedia.org/wiki/Max%20q | The max q, or maximum dynamic pressure, condition is the point when an aerospace vehicle's atmospheric flight reaches the maximum difference between the fluid dynamics total pressure and the ambient static pressure. For an airplane, this occurs at the maximum speed at minimum altitude corner of the flight envelope. For... | Max q | [
"Chemistry",
"Engineering"
] | 770 | [
"Piping",
"Chemical engineering",
"Aerospace engineering",
"Fluid dynamics"
] |
24,701,090 | https://en.wikipedia.org/wiki/P%C3%B3lya%E2%80%93Szeg%C5%91%20inequality | In mathematical analysis, the Pólya–Szegő inequality (or Szegő inequality) states that the Sobolev energy of a function in a Sobolev space does not increase under symmetric decreasing rearrangement. The inequality is named after the mathematicians George Pólya and Gábor Szegő.
Mathematical setting and statement
Give... | Pólya–Szegő inequality | [
"Mathematics"
] | 1,004 | [
"Theorems in geometry",
"Geometric inequalities",
"Inequalities (mathematics)",
"Rearrangement inequalities"
] |
24,702,673 | https://en.wikipedia.org/wiki/Fermi%20motion | The Fermi motion is the quantum motion of nucleons bound inside a nucleus. It was once posited as an explanation for the EMC effect.
References
Nuclear physics
Particle physics | Fermi motion | [
"Physics"
] | 39 | [
"Particle physics stubs",
"Nuclear and atomic physics stubs",
"Particle physics",
"Nuclear physics"
] |
24,703,611 | https://en.wikipedia.org/wiki/Superconducting%20tunnel%20junction | The superconducting tunnel junction (STJ) – also known as a superconductor–insulator–superconductor tunnel junction (SIS) – is an electronic device consisting of two superconductors separated by a very thin layer of insulating material. Current passes through the junction via the process of quantum tunneling. The STJ i... | Superconducting tunnel junction | [
"Physics",
"Materials_science",
"Astronomy",
"Technology",
"Engineering"
] | 1,504 | [
"Josephson effect",
"Astronomical sub-disciplines",
"Physical quantities",
"Quantum electronics",
"Superconductivity",
"Quantum mechanics",
"Measuring instruments",
"Materials science",
"Radio astronomy",
"Superconducting detectors",
"Condensed matter physics",
"Nanotechnology",
"Sensors",
... |
24,706,093 | https://en.wikipedia.org/wiki/Photonic%20metamaterial | A photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz (THz), infrared (IR) or visible wavelengths. The materials employ a periodic, cellular structure.
The subwavelength periodicity distinguishes photonic metamateri... | Photonic metamaterial | [
"Materials_science",
"Engineering"
] | 3,223 | [
"Metamaterials",
"Materials science"
] |
24,708,433 | https://en.wikipedia.org/wiki/G%C3%B6del%27s%20%CE%B2%20function | In mathematical logic, Gödel's β function is a function used to permit quantification over finite sequences of natural numbers in formal theories of arithmetic. The β function is used, in particular, in showing that the class of arithmetically definable functions is closed under primitive recursion, and therefore inclu... | Gödel's β function | [
"Mathematics"
] | 1,056 | [
"Mathematical logic"
] |
24,710,118 | https://en.wikipedia.org/wiki/Pine%20bolete | Pine bolete is a common name for several mushrooms and may refer to:
Suillus bellinii
Boletus pinophilus | Pine bolete | [
"Biology"
] | 29 | [
"Set index articles on fungus common names",
"Set index articles on organisms"
] |
24,710,843 | https://en.wikipedia.org/wiki/C22H24N2O8 | The molecular formula C22H24N2O8 (molar mass: 444.43 g/mol, exact mass: 444.1533 u) may refer to:
Tetracycline
Doxycycline
Molecular formulas | C22H24N2O8 | [
"Physics",
"Chemistry"
] | 53 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,711,006 | https://en.wikipedia.org/wiki/C10H11NO3 | {{DISPLAYTITLE:C10H11NO3}}
The molecular formula C10H11NO3 (molar mass: 193.20 g/mol, exact mass: 193.0739 u) may refer to:
Actarit
Betamipron
Methylenedioxycathinone
Methylhippuric acid | C10H11NO3 | [
"Chemistry"
] | 70 | [
"Isomerism",
"Set index articles on molecular formulas"
] |
24,711,058 | https://en.wikipedia.org/wiki/Relay%20network | A relay network is a broad class of network topology commonly used in wireless networks, where the source and destination are interconnected by means of some nodes. In such a network the source and destination cannot communicate to each other directly because the distance between the source and destination is greater t... | Relay network | [
"Technology",
"Engineering"
] | 679 | [
"Computer networks engineering",
"Computer engineering"
] |
33,334,030 | https://en.wikipedia.org/wiki/Duocarmycin | The duocarmycins are members of a series of related natural products first isolated from Streptomyces bacteria in 1978. They are notable for their extreme cytotoxicity and thus represent a class of exceptionally potent antitumour antibiotics.
Biological activity
As small-molecule, synthetic, DNA minor groove binding a... | Duocarmycin | [
"Chemistry",
"Biology"
] | 675 | [
"Biomolecules by chemical classification",
"Natural products",
"Biotechnology products",
"Biotechnology",
"Organic compounds",
"Antibiotics",
"nan",
"Biocides",
"Alkaloids"
] |
33,335,738 | https://en.wikipedia.org/wiki/Saturate%2C%20aromatic%2C%20resin%20and%20asphaltene | Saturate, Aromatic, Resin and Asphaltene (SARA) is an analysis method that divides crude oil components according to their polarizability and polarity. The saturate fraction consists of nonpolar material including linear, branched, and cyclic saturated hydrocarbons (paraffins). Aromatics, which contain one or more ar... | Saturate, aromatic, resin and asphaltene | [
"Chemistry",
"Engineering"
] | 320 | [
"Petroleum engineering",
"Petroleum technology"
] |
43,092,207 | https://en.wikipedia.org/wiki/Formal%20ball | In topology, a branch of mathematics, a formal ball is an extension of the notion of ball to allow unbounded and negative radius. The concept of formal ball was introduced by Weihrauch and Schreiber in 1981 and the negative radius case (the generalized formal ball) by Tsuiki and Hattori in 2008.
Specifically, if is ... | Formal ball | [
"Physics",
"Mathematics"
] | 282 | [
"Spacetime",
"Topology",
"Space",
"Geometry"
] |
43,092,670 | https://en.wikipedia.org/wiki/Batch%20cryptography | Batch cryptography is the area of cryptology where cryptographic protocols are studied and developed for doing cryptographic processes like encryption/decryption, key exchange, authentication, etc. in a batch way instead of one by one. The concept of batch cryptography was introduced by Amos Fiat in 1989.
References
... | Batch cryptography | [
"Mathematics",
"Engineering"
] | 65 | [
"Applied mathematics",
"Cryptography",
"Cybersecurity engineering"
] |
43,095,698 | https://en.wikipedia.org/wiki/Multifocal%20diffractive%20lens | A multifocal diffractive lens is a diffractive optical element (DOE) that allows a single incident beam to be focused simultaneously at several positions along the propagation axis.
Principle of operation
An incident laser beam is deflected by grooved diffraction pattern into axial diffraction orders along its optica... | Multifocal diffractive lens | [
"Physics",
"Chemistry",
"Materials_science"
] | 277 | [
"Crystallography",
"Diffraction",
"Spectroscopy",
"Spectrum (physical sciences)"
] |
43,099,469 | https://en.wikipedia.org/wiki/Loop%20representation%20in%20gauge%20theories%20and%20quantum%20gravity | Attempts have been made to describe gauge theories in terms of extended objects such as Wilson loops and holonomies. The loop representation is a quantum hamiltonian representation of gauge theories in terms of loops. The aim of the loop representation in the context of Yang–Mills theories is to avoid the redundancy in... | Loop representation in gauge theories and quantum gravity | [
"Physics"
] | 3,662 | [
"Quantum gravity",
"Unsolved problems in physics",
"Physics beyond the Standard Model"
] |
27,984,617 | https://en.wikipedia.org/wiki/ICI-199%2C441 | ICI-199,441 is a drug which acts as a potent and selective κ-opioid agonist, and has analgesic effects. It is a biased agonist of the KOR, and is one of relatively few KOR ligands that is G protein-biased rather than β-arrestin-biased.
See also
U-47700
U-50488
U-69,593
References
Acetamides
Biased ligands
Chloroar... | ICI-199,441 | [
"Chemistry"
] | 121 | [
"Biased ligands",
"Signal transduction"
] |
27,984,902 | https://en.wikipedia.org/wiki/PRE-084 | PRE-084 is a sigma receptor agonist, selective for the σ1 subtype. It has nootropic and antidepressant actions in animal studies, as well as antitussive and reinforcing effects. PRE-084 increases the expression of GDNF.
References
Sigma agonists
Carboxylate esters
4-Morpholinyl compounds
Dissociative drugs | PRE-084 | [
"Chemistry"
] | 85 | [
"Pharmacology",
"Pharmacology stubs",
"Medicinal chemistry stubs"
] |
27,986,621 | https://en.wikipedia.org/wiki/Braking%20chopper | Braking choppers, sometimes also referred to as Braking units, are used in the DC voltage intermediate circuits of frequency converters to control voltage when the load feeds energy back to the intermediate circuit. This arises, for example, when a magnetized motor is being rotated by an overhauling load and so functio... | Braking chopper | [
"Physics",
"Technology",
"Engineering"
] | 742 | [
"Engines",
"Electric motors",
"Mechanics",
"Electrical engineering",
"Mechanical power transmission",
"Mechanical power control"
] |
27,986,832 | https://en.wikipedia.org/wiki/Macroscopic%20traffic%20flow%20model | A macroscopic traffic flow model is a mathematical traffic model that formulates the relationships among traffic flow characteristics like density, flow, mean speed of a traffic stream, etc. Such models are conventionally arrived at by integrating microscopic traffic flow models and converting the single-entity level c... | Macroscopic traffic flow model | [
"Mathematics"
] | 394 | [
"Applied mathematics",
"Mathematical modeling"
] |
27,987,124 | https://en.wikipedia.org/wiki/Health%20informatics%20tools | To provide the safe and effective delivery of medical care, virtually all clinical staff use a number of front-line health informatics tools in their day-to-day operations. The need for standardization and refined development of these tools is underscored by the HITECH Act and other efforts to develop electronic medica... | Health informatics tools | [
"Biology"
] | 528 | [
"Health informatics",
"Medical technology"
] |
27,989,949 | https://en.wikipedia.org/wiki/Extended%20static%20checking | Extended static checking (ESC) is a collective name in computer science for a range of techniques for statically checking the correctness of various program constraints. ESC can be thought of as an extended form of type checking. As with type checking, ESC is performed automatically at compile time (i.e. without human ... | Extended static checking | [
"Engineering"
] | 628 | [
"Software engineering",
"Formal methods"
] |
27,990,286 | https://en.wikipedia.org/wiki/Octagonal%20tiling | In geometry, the octagonal tiling is a regular tiling of the hyperbolic plane. It is represented by Schläfli symbol of {8,3}, having three regular octagons around each vertex. It also has a construction as a truncated order-8 square tiling, t{4,8}.
Uniform colorings
Like the hexagonal tiling of the Euclidean plane, t... | Octagonal tiling | [
"Physics"
] | 507 | [
"Isogonal tilings",
"Tessellation",
"Hyperbolic tilings",
"Isohedral tilings",
"Symmetry"
] |
44,806,520 | https://en.wikipedia.org/wiki/Valve%20exerciser | A valve exerciser is a device that operates a valve periodically in order to prevent it from becoming so stiff that it no longer works. Valves that are left in a static position for a long time may corrode, or become blocked with mineral deposits. Electronic valve exercisers can provide information on the health of a v... | Valve exerciser | [
"Physics",
"Chemistry",
"Engineering"
] | 77 | [
"Building engineering",
"Chemical engineering",
"Plumbing",
"Physical systems",
"Construction",
"Valves",
"Hydraulics",
"Mechanical engineering",
"Piping"
] |
26,123,160 | https://en.wikipedia.org/wiki/Lake%20bifurcation | A lake bifurcation occurs when a lake (a bifurcating lake) has outflows into two different drainage basins. In this case, the drainage divide cannot be defined exactly, as it is situated in the middle of the lake.
Examples
Vesijako (the name Vesijako actually means "drainage divide") and Lummene in the Finnish Lakela... | Lake bifurcation | [
"Chemistry",
"Engineering",
"Environmental_science"
] | 1,107 | [
"Hydrology",
"Environmental engineering"
] |
30,832,132 | https://en.wikipedia.org/wiki/Total%20absorption%20spectroscopy | Total absorption spectroscopy is a measurement technique that allows the measurement of the gamma radiation emitted in the different nuclear gamma transitions that may take place in the daughter nucleus after its unstable parent has decayed by means of the beta decay process. This technique can be used for beta decay s... | Total absorption spectroscopy | [
"Physics",
"Chemistry",
"Technology",
"Engineering"
] | 2,539 | [
"Measuring instruments",
"Particle detectors",
"Experimental physics",
"Nuclear physics",
"Radioactivity"
] |
30,834,082 | https://en.wikipedia.org/wiki/MENTAL%20domain | The MENTAL or MLN64 NH2-terminal domain is a membrane-spanning domain that is conserved in two late endosomal proteins in vertebrates, MLN64 and MENTHO. The domain is 170 amino acids long.
Current data indicates that this domain allows for dimerization between MLN64 and MENTHO molecules and with themselves. The dom... | MENTAL domain | [
"Biology"
] | 85 | [
"Protein domains",
"Protein classification"
] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.