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 |
|---|---|---|---|---|---|---|
28,016,564 | https://en.wikipedia.org/wiki/Two-step%20floating%20catchment%20area%20method | The two-step floating catchment area (2SFCA) method is a method for combining a number of related types of information into a single, immediately meaningful, index that allows comparisons to be made across different locations. Its importance lies in the improvement over considering the individual sources of information... | Two-step floating catchment area method | [
"Engineering"
] | 565 | [
"Accessibility",
"Design"
] |
28,021,681 | https://en.wikipedia.org/wiki/Absolute%20difference | The absolute difference of two real numbers and is given by , the absolute value of their difference. It describes the distance on the real line between the points corresponding to and . It is a special case of the Lp distance for all and is the standard metric used for both the set of rational numbers and their c... | Absolute difference | [
"Physics",
"Mathematics"
] | 307 | [
"Physical quantities",
"Distance",
"Real numbers",
"Quantity",
"Mathematical objects",
"Size",
"Space",
"Spacetime",
"Wikipedia categories named after physical quantities",
"Numbers"
] |
28,022,292 | https://en.wikipedia.org/wiki/Plane%20wave%20tube | An acoustic duct or plane wave tube is a test facility used in acoustics. Anechoic chambers are typically subject to a low frequency limit, governed by the length of the sound absorbing wedges employed to prevent reflections within the chamber. Test and measurement microphone calibration services are often required to ... | Plane wave tube | [
"Physics"
] | 221 | [
"Classical mechanics",
"Acoustics"
] |
28,022,494 | https://en.wikipedia.org/wiki/Measurement%20microphone%20calibration | In order to take a scientific measurement with a microphone, its precise sensitivity must be known (in volts per pascal). Since this may change over the lifetime of the device, it is necessary to regularly calibrate measurement microphones. This service is offered by some microphone manufacturers and by independent te... | Measurement microphone calibration | [
"Physics"
] | 1,652 | [
"Classical mechanics",
"Acoustics"
] |
26,155,440 | https://en.wikipedia.org/wiki/Plate%20theory | In continuum mechanics, plate theories are mathematical descriptions of the mechanics of flat plates that draw on the theory of beams. Plates are defined as plane structural elements with a small thickness compared to the planar dimensions. The typical thickness to width ratio of a plate structure is less than 0.1. ... | Plate theory | [
"Physics"
] | 2,106 | [
"Classical mechanics",
"Continuum mechanics"
] |
26,157,481 | https://en.wikipedia.org/wiki/Acoustic%20dispersion | In acoustics, acoustic dispersion is the phenomenon of a sound wave separating into its component frequencies as it passes through a material. The phase velocity of the sound wave is viewed as a function of frequency. Hence, separation of component frequencies is measured by the rate of change in phase velocities as th... | Acoustic dispersion | [
"Physics",
"Materials_science",
"Engineering"
] | 240 | [
"Materials science stubs",
"Metamaterials",
"Classical mechanics",
"Acoustics",
"Materials science"
] |
26,158,367 | https://en.wikipedia.org/wiki/Hyperbaric%20stretcher | A hyperbaric stretcher is a lightweight pressure vessel for human occupancy (PVHO) designed to accommodate one person undergoing initial hyperbaric treatment during or while awaiting transport or transfer to a treatment chamber.
Originally developed as advanced diving equipment, it has since been used for other medica... | Hyperbaric stretcher | [
"Physics",
"Chemistry",
"Engineering"
] | 496 | [
"Structural engineering",
"Chemical equipment",
"Physical systems",
"Hydraulics",
"Pressure vessels"
] |
44,847,815 | https://en.wikipedia.org/wiki/Newlight%20Technologies | Newlight Technologies is a company based in Huntington Beach, California, known for carbon sequestration into materials and products. The company is headquartered and manufactures in Huntington Beach, CA, and staffs over 200 employees.
History and corporate affairs
As of October 2020, Newlight Technologies has one fac... | Newlight Technologies | [
"Chemistry",
"Engineering"
] | 278 | [
"Greenhouse gases",
"Geoengineering",
"Carbon capture and storage",
"Methane"
] |
44,848,466 | https://en.wikipedia.org/wiki/Translational%20Research%20%28journal%29 | Translational Research: The Journal of Laboratory and Clinical Medicine is a monthly peer-reviewed medical journal covering translational research. It was established in 1915 as The Journal of Laboratory and Clinical Medicine obtaining its current title in 2006. Jeffrey Laurence (Weill Cornell Medical College) has been... | Translational Research (journal) | [
"Biology"
] | 210 | [
"Translational medicine"
] |
44,849,610 | https://en.wikipedia.org/wiki/Catellani%20reaction | The Catellani reaction was discovered by Marta Catellani (Università degli Studi di Parma, Italy) and co-workers in 1997. The reaction uses aryl iodides to perform bi- or tri-functionalization, including C-H functionalization of the unsubstituted ortho position(s), followed a terminating cross-coupling reaction at the ... | Catellani reaction | [
"Chemistry"
] | 770 | [
"Name reactions",
"nan"
] |
44,849,824 | https://en.wikipedia.org/wiki/Atiyah%E2%80%93Bott%20formula | In algebraic geometry, the Atiyah–Bott formula says the cohomology ring
of the moduli stack of principal bundles is a free graded-commutative algebra on certain homogeneous generators. The original work of Michael Atiyah and Raoul Bott concerned the integral cohomology ring of .
See also
Borel's theorem, which says ... | Atiyah–Bott formula | [
"Mathematics"
] | 96 | [
"Theorems in algebraic geometry",
"Topology stubs",
"Topology",
"Theorems in geometry"
] |
44,852,866 | https://en.wikipedia.org/wiki/Performance%20gap | A performance gap is a disparity that is found between the energy use predicted and carbon emissions in the design stage of buildings and the energy use of those buildings in operation. Research in the UK suggests that actual carbon emissions from new homes can be 2.5 times the design estimates, on average. For non-dom... | Performance gap | [
"Engineering"
] | 2,012 | [
"Building engineering",
"Civil engineering",
"Architecture"
] |
44,854,262 | https://en.wikipedia.org/wiki/PIDA%20%28polymer%29 | PIDA, or poly(diiododiacetylene), is an organic polymer that has a polydiacetylene backbone. It is one of the simplest polydiacetylenes that has been synthesized, having only iodine atoms as side chains. It is created by 1,4 topochemical polymerization of diiodobutadiyne. It has many implications in the field of polyme... | PIDA (polymer) | [
"Chemistry"
] | 500 | [
"Organic compounds",
"Organic polymers",
"Molecular electronics",
"Conductive polymers"
] |
44,856,539 | https://en.wikipedia.org/wiki/Non%20linear%20piezoelectric%20effects%20in%20polar%20semiconductors | Non linear piezoelectric effects in polar semiconductors are the manifestation that the strain induced piezoelectric polarization depends not just on the product of the first order piezoelectric coefficients times the strain tensor components but also on the product of the second order (or higher) piezoelectric coeffic... | Non linear piezoelectric effects in polar semiconductors | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 798 | [
"Electrical resistance and conductance",
"Physical quantities",
"Semiconductors",
"Materials",
"Electronic engineering",
"Condensed matter physics",
"Nanoelectronics",
"Nanotechnology",
"Solid state engineering",
"Matter"
] |
44,857,653 | https://en.wikipedia.org/wiki/International%20Conference%20on%20Composite%20Materials | International Conference on Composite Materials (ICCM) is an international scientific conference devoted to all aspects of composite materials. The list of topics includes manufacturing, mechanics, fracture and damage, fatigue, design of components and structures, impact behavior, experimental methods.
History
The co... | International Conference on Composite Materials | [
"Physics"
] | 157 | [
"Materials",
"Composite materials",
"Matter"
] |
44,858,871 | https://en.wikipedia.org/wiki/Clicked%20peptide%20polymer | Clicked peptide polymers are poly-triazole-poly-peptide hybrid polymers. They are made of repeating units of a 1,2,3-triazole and an oligopeptide. They can be visualized as an oligopeptide that is flanked at both the C-terminus and N-terminus by a triazole molecule.
Synthesis
Clicked peptide polymers are prepared by ... | Clicked peptide polymer | [
"Chemistry"
] | 563 | [
"Biomolecules by chemical classification",
"Organic polymers",
"Organic compounds",
"Molecular biology",
"Peptides"
] |
44,860,596 | https://en.wikipedia.org/wiki/Aliflurane | Aliflurane (code name Hoechst Compound 26 or 26-P) is a halocarbon drug which was investigated as an inhalational anesthetic but was never marketed.
See also
Halopropane
Norflurane
Roflurane
Synthane
Teflurane
References
General anesthetics
Cyclopropanes
Ethers
Organochlorides
Organofluorides
GABAA receptor pos... | Aliflurane | [
"Chemistry"
] | 98 | [
"Organic compounds",
"Functional groups",
"Ethers"
] |
44,861,052 | https://en.wikipedia.org/wiki/Synthane | Synthane (development code BAX-3224) is a halocarbon agent which was investigated as an inhalational anesthetic but was never marketed.
See also
Aliflurane
Halopropane
Norflurane
Roflurane
Teflurane
References
General anesthetics
Ethers
Organofluorides
GABAA receptor positive allosteric modulators
Abandoned dru... | Synthane | [
"Chemistry"
] | 83 | [
"Functional groups",
"Drug safety",
"Organic compounds",
"Ethers",
"Abandoned drugs"
] |
44,862,348 | https://en.wikipedia.org/wiki/Indonesia%20AirAsia%20Flight%208501 | Indonesia AirAsia Flight 8501 was a scheduled international passenger flight operated by Indonesia AirAsia from Surabaya, Java, Indonesia, to Singapore. On 28 December 2014, the Airbus A320-216 flying the route crashed into the Java Sea, killing all 162 of the people on board. When search operations ended in March 2015... | Indonesia AirAsia Flight 8501 | [
"Materials_science"
] | 5,875 | [
"Airliner accidents and incidents caused by mechanical failure",
"Mechanical failure"
] |
21,769,719 | https://en.wikipedia.org/wiki/Oscillator%20linewidth | The concept of a linewidth is borrowed from laser spectroscopy. The linewidth of a laser is a measure of its phase noise. The spectrogram of a laser is produced by passing its light through a prism. The spectrogram of the output of a pure noise-free laser will consist of a single infinitely thin line. If the laser exh... | Oscillator linewidth | [
"Engineering"
] | 551 | [
"Statistical signal processing",
"Engineering statistics"
] |
21,770,563 | https://en.wikipedia.org/wiki/Fluorine-19%20nuclear%20magnetic%20resonance%20spectroscopy | Fluorine-19 nuclear magnetic resonance spectroscopy (fluorine NMR or 19F NMR) is an analytical technique used to detect and identify fluorine-containing compounds. 19F is an important nucleus for NMR spectroscopy because of its receptivity and large chemical shift dispersion, which is greater than that for proton nucl... | Fluorine-19 nuclear magnetic resonance spectroscopy | [
"Physics",
"Chemistry"
] | 1,148 | [
"Nuclear magnetic resonance",
"Nuclear physics"
] |
38,885,073 | https://en.wikipedia.org/wiki/Vibroscope | Vibroscope ( 'vibrate' + scope) is an instrument for observing and tracing (and sometimes recording) vibration.
For example, a primitive mechanical vibroscope consists of a vibrating object with a pointy end which leaves a wave trace on a smoked surface of a rotating cylinder.
Vibroscopes are used to study properties... | Vibroscope | [
"Physics",
"Technology",
"Engineering"
] | 176 | [
"Mechanics",
"Measuring instruments",
"Oscillation"
] |
38,891,557 | https://en.wikipedia.org/wiki/Truncated%20hexaoctagonal%20tiling | In geometry, the truncated hexaoctagonal tiling is a semiregular tiling of the hyperbolic plane. There are one square, one dodecagon, and one hexakaidecagon on each vertex. It has Schläfli symbol of tr{8,6}.
Dual tiling
Symmetry
There are six reflective subgroup kaleidoscopic constructed from [8,6] by removing one ... | Truncated hexaoctagonal tiling | [
"Physics"
] | 465 | [
"Semiregular tilings",
"Truncated tilings",
"Isogonal tilings",
"Tessellation",
"Hyperbolic tilings",
"Symmetry"
] |
41,632,849 | https://en.wikipedia.org/wiki/Supercomplex | Modern biological research has revealed strong evidence that the enzymes of the mitochondrial respiratory chain assemble into larger, supramolecular structures called supercomplexes, instead of the traditional fluid model of discrete enzymes dispersed in the inner mitochondrial membrane. These supercomplexes are funct... | Supercomplex | [
"Chemistry",
"Biology"
] | 754 | [
"Biochemistry",
"Cellular respiration",
"Metabolism"
] |
36,014,669 | https://en.wikipedia.org/wiki/Yff%20center%20of%20congruence | In geometry, the Yff center of congruence is a special point associated with a triangle. This special point is a triangle center and Peter Yff initiated the study of this triangle center in 1987.
Isoscelizer
An isoscelizer of an angle in a triangle is a line through points , where lies on and on , such that the ... | Yff center of congruence | [
"Physics",
"Mathematics"
] | 540 | [
"Point (geometry)",
"Triangle centers",
"Points defined for a triangle",
"Geometric centers",
"Symmetry"
] |
36,017,008 | https://en.wikipedia.org/wiki/Deletion%20channel | A deletion channel is a communications channel model used in coding theory and information theory. In this model, a transmitter sends a bit (a zero or a one), and the receiver either receives the bit (with probability ) or does not receive anything without being notified that the bit was dropped (with probability ). De... | Deletion channel | [
"Mathematics"
] | 233 | [
"Discrete mathematics",
"Coding theory"
] |
36,018,530 | https://en.wikipedia.org/wiki/Sarayk%C3%B6y%20Nuclear%20Research%20and%20Training%20Center | The Sarayköy Nuclear Research and Training Center (), known as SANAEM, is a nuclear research and training center of Turkey. The organization was established on July 1, 2005, as a subunit of Turkish Atomic Energy Administration (, TAEK) at Kazan district in northwest of Ankara on an area of .
The center can be visited ... | Sarayköy Nuclear Research and Training Center | [
"Engineering"
] | 838 | [
"Nuclear research institutes",
"Nuclear medicine organizations",
"Nuclear organizations"
] |
36,022,927 | https://en.wikipedia.org/wiki/Nuclear%20forensics | Nuclear forensics is the investigation of nuclear materials to find evidence for the source, the trafficking, and the enrichment of the material. The material can be recovered from various sources including dust from the vicinity of a nuclear facility, or from the radioactive debris following a nuclear explosion.
Resu... | Nuclear forensics | [
"Physics"
] | 3,575 | [
"Nuclear interdisciplinary topics",
"Nuclear physics"
] |
36,023,644 | https://en.wikipedia.org/wiki/Tubulin%20domain | Tubulin/FtsZ family, GTPase domain is an evolutionary conserved protein domain.
This domain is found in all tubulin chains, as well as the bacterial FtsZ family of proteins. These proteins are involved in polymer formation. Tubulin is the major component of microtubules, while FtsZ is the polymer-forming protein of ba... | Tubulin domain | [
"Biology"
] | 152 | [
"Protein domains",
"Protein classification"
] |
36,023,674 | https://en.wikipedia.org/wiki/Misato%20segment%20II%20myosin-like%20domain | The Misato segment II myosin-like domain is an evolutionary conserved protein domain. The misato protein contains three distinct, conserved domains, segments I, II and III and is involved in the regulation of mitochondrial distribution and morphology.
Segments I and III are common to tubulins (INTERPRO), but segment I... | Misato segment II myosin-like domain | [
"Biology"
] | 277 | [
"Protein domains",
"Protein classification"
] |
36,026,354 | https://en.wikipedia.org/wiki/Boolean%20hierarchy | The boolean hierarchy is the hierarchy of boolean combinations (intersection, union and complementation) of NP sets. Equivalently, the boolean hierarchy can be described as the class of boolean circuits over NP predicates. A collapse of the boolean hierarchy would imply a collapse of the polynomial hierarchy.
Formal d... | Boolean hierarchy | [
"Mathematics",
"Technology"
] | 477 | [
"Mathematical logic",
"Computer science stubs",
"Computer science",
"Computing stubs",
"Mathematical logic hierarchies"
] |
24,751,678 | https://en.wikipedia.org/wiki/C15H21N | {{DISPLAYTITLE:C15H21N}}
The molecular formula C15H21N (molar mass: 120.15 g/mol) may refer to:
8A-PDHQ, also known as 8a-Phenyldecahydroquinoline
Fencamfamin, also known as fencamfamine
Molecular formulas | C15H21N | [
"Physics",
"Chemistry"
] | 77 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,758,132 | https://en.wikipedia.org/wiki/Constant%20%28mathematics%29 | In mathematics, the word constant conveys multiple meanings. As an adjective, it refers to non-variance (i.e. unchanging with respect to some other value); as a noun, it has two different meanings:
A fixed and well-defined number or other non-changing mathematical object, or the symbol denoting it. The terms mathemat... | Constant (mathematics) | [
"Mathematics"
] | 867 | [
"Elementary mathematics",
"Algebra"
] |
24,758,677 | https://en.wikipedia.org/wiki/Continuum%20%28set%20theory%29 | In the mathematical field of set theory, the continuum means the real numbers, or the corresponding (infinite) cardinal number, denoted by . Georg Cantor proved that the cardinality is larger than the smallest infinity, namely, . He also proved that is equal to , the cardinality of the power set of the natural number... | Continuum (set theory) | [
"Mathematics"
] | 308 | [
"Set theory",
"Mathematical logic",
"Mathematical objects",
"Infinity",
"Mathematical logic stubs"
] |
24,760,321 | https://en.wikipedia.org/wiki/Integrated%20pulmonary%20index | Integrated pulmonary index (IPI) is a patient pulmonary index which uses information from capnography and pulse oximetry to provide a single value that describes the patient's respiratory status. IPI is used by clinicians to quickly assess the patient's respiratory status to determine the need for additional clinical a... | Integrated pulmonary index | [
"Biology"
] | 1,124 | [
"Medical technology"
] |
24,762,328 | https://en.wikipedia.org/wiki/Seismic%20metamaterial | A seismic metamaterial, is a metamaterial that is designed to counteract the adverse effects of seismic waves on artificial structures, which exist on or near the surface of the Earth. Current designs of seismic metamaterials utilize configurations of boreholes, trees or proposed underground resonators to act as a lar... | Seismic metamaterial | [
"Physics",
"Materials_science",
"Engineering"
] | 1,404 | [
"Metamaterials",
"Materials science",
"Classical mechanics",
"Continuum mechanics"
] |
23,263,587 | https://en.wikipedia.org/wiki/Specific%20ion%20interaction%20theory | In theoretical chemistry, Specific ion Interaction Theory (SIT theory) is a theory used to estimate single-ion activity coefficients in electrolyte solutions at relatively high concentrations. It does so by taking into consideration interaction coefficients between the various ions present in solution. Interaction coef... | Specific ion interaction theory | [
"Physics",
"Chemistry",
"Mathematics"
] | 1,105 | [
"Equilibrium chemistry",
"Thermodynamics",
"Dynamical systems"
] |
23,264,409 | https://en.wikipedia.org/wiki/Dynamic%20structure%20factor | In condensed matter physics, the dynamic structure factor (or dynamical structure factor) is a mathematical function that contains information about inter-particle correlations and their time evolution. It is a generalization of the structure factor that considers correlations in both space and time. Experimentally, it... | Dynamic structure factor | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 303 | [
"Materials science stubs",
"Neutron scattering",
"Scattering stubs",
"Phases of matter",
"Materials science",
"Scattering",
"Condensed matter physics",
"Condensed matter stubs",
"Matter"
] |
23,266,515 | https://en.wikipedia.org/wiki/Arf%20semigroup | In mathematics, Arf semigroups are certain subsets of the non-negative integers closed under addition, that were studied by . They appeared as the semigroups of values of Arf rings.
A subset of the integers forms a monoid if it includes zero, and if every two elements in the subset have a sum that also belongs to th... | Arf semigroup | [
"Mathematics"
] | 159 | [
"Semigroup theory",
"Fields of abstract algebra",
"Mathematical structures",
"Algebraic structures"
] |
23,267,052 | https://en.wikipedia.org/wiki/DC%20block | DC blocks are coaxial components that prevent the flow of audio and direct current (DC) frequencies while offering minimum interference to RF signals. There are three basic forms of DC blocks. "Inner only" models have a capacitor in series with the center conductor, "outer only" models have a capacitor in series with t... | DC block | [
"Physics",
"Technology",
"Engineering"
] | 324 | [
"Electrical components",
"Electrical systems",
"Building engineering",
"Physical systems",
"Electrical engineering",
"Electrical wiring",
"Components"
] |
23,268,911 | https://en.wikipedia.org/wiki/Asphalt%20roll%20roofing | Asphalt roll roofing or membrane is a roofing material commonly used for buildings that feature a low sloped roof pitch in North America. The material is based on the same materials used in asphalt shingles; an organic felt or fiberglass mat, saturated with asphalt, and faced with granular stone aggregate.
Overview
... | Asphalt roll roofing | [
"Physics",
"Technology",
"Engineering"
] | 1,099 | [
"Structural engineering",
"Building engineering",
"Architecture",
"Structural system",
"Construction",
"Materials",
"Roofs",
"Matter",
"Building materials"
] |
23,270,645 | https://en.wikipedia.org/wiki/Beta-decay%20stable%20isobars | Beta-decay stable isobars are the set of nuclides which cannot undergo beta decay, that is, the transformation of a neutron to a proton or a proton to a neutron within the nucleus. A subset of these nuclides are also stable with regards to double beta decay or theoretically higher simultaneous beta decay, as they have... | Beta-decay stable isobars | [
"Physics"
] | 2,390 | [
"Nuclear physics"
] |
23,271,188 | https://en.wikipedia.org/wiki/Format-preserving%20encryption | In cryptography, format-preserving encryption (FPE), refers to encrypting in such a way that the output (the ciphertext) is in the same format as the input (the plaintext). The meaning of "format" varies. Typically only finite sets of characters are used; numeric, alphabetic or alphanumeric. For example:
Encrypting ... | Format-preserving encryption | [
"Mathematics",
"Engineering"
] | 3,589 | [
"Applied mathematics",
"Cryptography",
"Cybersecurity engineering"
] |
23,271,791 | https://en.wikipedia.org/wiki/Precipitation%20polymerization | In polymer science, precipitation polymerization is a heterogeneous polymerization process that begins initially as a homogeneous system in the continuous phase, where the monomer and initiator are completely soluble, but upon initiation the formed polymer is insoluble and thus precipitates.
After precipitation, the p... | Precipitation polymerization | [
"Chemistry",
"Materials_science"
] | 162 | [
"Polymerization reactions",
"Polymer chemistry"
] |
23,271,819 | https://en.wikipedia.org/wiki/Helmholtz%E2%80%93Kohlrausch%20effect | The Helmholtz–Kohlrausch effect (after Hermann von Helmholtz and V. A. Kohlrausch) is a perceptual phenomenon where some hues, even when of the same lightness, appear to be bolder than others.
Explanation
Any colored lights will seem brighter to human observers than pure white light. Oftentimes this makes more saturat... | Helmholtz–Kohlrausch effect | [
"Physics"
] | 1,106 | [
"Optical phenomena",
"Physical phenomena",
"Color appearance phenomena"
] |
44,584,349 | https://en.wikipedia.org/wiki/Modular%20smartphone | A modular smartphone is a smartphone designed for users to upgrade or replace components and modules without the need for resoldering or repair services. The most important component is the main board, to which others such as cameras and batteries are attached. Components can be obtained from open-source hardware store... | Modular smartphone | [
"Engineering"
] | 2,515 | [
"Modular design",
"Modular smartphones"
] |
44,585,187 | https://en.wikipedia.org/wiki/Heliotron%20J | Heliotron J is a fusion research device in Japan, specifically a helical-axis heliotron designed to study plasma confinement in this type of device. It is located at the Institute of Advanced Energy of Kyoto University.
References
Stellarators
Nuclear technology in Japan | Heliotron J | [
"Physics"
] | 55 | [
"Nuclear and atomic physics stubs",
"Nuclear physics"
] |
44,585,565 | https://en.wikipedia.org/wiki/2219%20aluminium%20alloy | 2219 aluminium alloy is an alloy in the wrought aluminium-copper family (2000 or 2xxx series). It can be heat-treated to produce tempers with higher strength but lower ductility. The aluminium-copper alloys have high strength, but are generally less corrosion resistant and harder to weld than other types of aluminium a... | 2219 aluminium alloy | [
"Chemistry"
] | 445 | [
"Alloys",
"Aluminium alloys"
] |
44,585,698 | https://en.wikipedia.org/wiki/3003%20aluminium%20alloy | 3003 aluminium alloy is an alloy in the wrought aluminium-manganese family (3000 or 3xxx series). It can be cold worked (but not, unlike some other types of aluminium alloys, heat-treated) to produce tempers with a higher strength but a lower ductility. Like most other aluminium-manganese alloys, 3003 is a general-purp... | 3003 aluminium alloy | [
"Chemistry"
] | 286 | [
"Alloys",
"Aluminium alloys"
] |
43,135,011 | https://en.wikipedia.org/wiki/Nucleation%20in%20microcellular%20foaming | Nucleation in microcellular plastic is an important stage which decides the final cell size, cell density and cell morphology of the foam. In the recent past, numerous researchers have studied the cell nucleation phenomenon in microcellular polymers.
Studies were performed with ultrasound induced nucleation during mic... | Nucleation in microcellular foaming | [
"Physics",
"Chemistry"
] | 113 | [
"Amorphous solids",
"Foams",
"Unsolved problems in physics",
"Plastics"
] |
43,137,281 | https://en.wikipedia.org/wiki/Vertebrate%20mitochondrial%20code | The vertebrate mitochondrial code (translation table 2) is the genetic code found in the mitochondria of all vertebrata.
Evolution
AGA and AGG were thought to have become mitochondrial stop codons early in vertebrate evolution. However, at least in humans it has now been shown that AGA and AGG sequences are not recog... | Vertebrate mitochondrial code | [
"Chemistry",
"Biology"
] | 293 | [
"Protein biosynthesis",
"Gene expression",
"Molecular genetics",
"Biosynthesis",
"Cellular processes",
"Molecular biology",
"Biochemistry"
] |
43,140,842 | https://en.wikipedia.org/wiki/NASICON | NASICON is an acronym for sodium (Na) super ionic conductor, which usually refers to a family of solids with the chemical formula Na1+xZr2SixP3−xO12, 0 < x < 3. In a broader sense, it is also used for similar compounds where Na, Zr and/or Si are replaced by isovalent elements. NASICON compounds have high ionic conduct... | NASICON | [
"Chemistry"
] | 2,415 | [
"Electrochemistry",
"Phosphates",
"Electrolytes",
"Salts"
] |
37,455,368 | https://en.wikipedia.org/wiki/Internal%20measurement | In quantum mechanics, internal measurement refers to the measurement of a quantum system by an observer (referred to as an internal observer or endo-observer).
A quantum measurement represents the action of a measuring device on a quantum system. When the measuring device is a part of the measured quantum system, ... | Internal measurement | [
"Physics",
"Mathematics"
] | 547 | [
"Quantity",
"Physical quantities",
"Measurement",
"Size"
] |
33,376,527 | https://en.wikipedia.org/wiki/Michele%20Parrinello | Michele Parrinello (born 7 September 1945) is an Italian physicist particularly known for his work in molecular dynamics (the computer simulation of physical movements of atoms and molecules). Parrinello and Roberto Car were awarded the Dirac Medal of the International Centre for Theoretical Physics (ICTP) and the Sidn... | Michele Parrinello | [
"Physics",
"Chemistry"
] | 781 | [
"Computational physicists",
"Computational chemists",
"Computational physics",
"Computational chemistry",
"Theoretical chemists"
] |
33,381,675 | https://en.wikipedia.org/wiki/Hydroxyl%20value | In analytical chemistry, the hydroxyl value is defined as the number of milligrams of potassium hydroxide (KOH) required to neutralize the acetic acid taken up on acetylation of one gram of a chemical substance that contains free hydroxyl groups. The analytical method used to determine hydroxyl value traditionally invo... | Hydroxyl value | [
"Chemistry"
] | 551 | [
"Biomolecules by chemical classification",
"Lipids",
"Organic compounds",
"nan",
"Dimensionless numbers of chemistry"
] |
33,383,655 | https://en.wikipedia.org/wiki/Chemical%20Engineering%20and%20Biotechnology%20Abstracts | Chemical Engineering and Biotechnology Abstracts (CEABA-VTB) is an abstracting and indexing service that is published by DECHEMA, BASF, and Bayer Technology Services, all based in Germany. This is a bibliographic database that covers multiple disciplines.
Subject coverage
Subject coverage includes engineering, managem... | Chemical Engineering and Biotechnology Abstracts | [
"Chemistry",
"Engineering",
"Biology"
] | 182 | [
"Chemical engineering",
"nan",
"Biotechnology",
"Chemical engineering journals"
] |
33,387,415 | https://en.wikipedia.org/wiki/Matchbox | A matchbox is a container or case for matches, made of cardboard, thin wood, or metal, generally in the form of a box with a separate drawer sliding inside the cover. Matchboxes generally measure 5 x 3.5 x 1.5 cm, and commonly have coarse striking surfaces on the edges for lighting the matches. Cylindrical matchboxes w... | Matchbox | [
"Physics",
"Technology"
] | 791 | [
"Physical systems",
"Machines",
"Home appliances"
] |
34,937,051 | https://en.wikipedia.org/wiki/Flooding%20%28nuclear%20reactor%20core%29 | Flooding refers to a fluid flow phenomenon whereby counter-current two-phase flow is reversed and runs concurrent in the direction of the initial gas/vapor phase flow when filling, or "flooding", a nuclear reactor core with coolant. This phenomenon is generally discussed with respect to a loss-of-coolant accident (LO... | Flooding (nuclear reactor core) | [
"Physics"
] | 447 | [
"Power (physics)",
"Physical quantities",
"Nuclear power"
] |
34,939,027 | https://en.wikipedia.org/wiki/Pharmacometabolomics | Pharmacometabolomics, also known as pharmacometabonomics, is a field which stems from metabolomics, the quantification and analysis of metabolites produced by the body. It refers to the direct measurement of metabolites in an individual's bodily fluids, in order to predict or evaluate the metabolism of pharmaceutical c... | Pharmacometabolomics | [
"Chemistry",
"Biology"
] | 4,018 | [
"Cellular processes",
"Biochemistry",
"Metabolism",
"nan"
] |
34,940,171 | https://en.wikipedia.org/wiki/Programming%20languages%20used%20in%20most%20popular%20websites | One thing the most visited websites have in common is that they are dynamic websites. Their development typically involves server-side coding, client-side coding and database technology. The programming languages applied to deliver such dynamic web content vary vastly between sites.
*data on programming languages is b... | Programming languages used in most popular websites | [
"Technology",
"Engineering"
] | 95 | [
"Software engineering",
"Software comparisons",
"Computing comparisons",
"Web development"
] |
34,941,120 | https://en.wikipedia.org/wiki/Nucleotide%20pyrophosphatase/phosphodiesterase | Nucleotide pyrophosphatase/phosphodiesterase (NPP) is a class of dimeric enzymes that catalyze the hydrolysis of phosphate diester bonds. NPP belongs to the alkaline phosphatase (AP) superfamily of enzymes. Humans express seven known NPP isoforms, some of which prefer nucleotide substrates, some of which prefer phospho... | Nucleotide pyrophosphatase/phosphodiesterase | [
"Chemistry",
"Biology"
] | 1,458 | [
"Biochemistry",
"Structural biology",
"nan",
"Protein structure"
] |
34,942,847 | https://en.wikipedia.org/wiki/Compression%20of%20genomic%20sequencing%20data | High-throughput sequencing technologies have led to a dramatic decline of genome sequencing costs and to an astonishingly rapid accumulation of genomic data. These technologies are enabling ambitious genome sequencing endeavours, such as the 1000 Genomes Project and 1001 (Arabidopsis thaliana) Genomes Project. The stor... | Compression of genomic sequencing data | [
"Chemistry",
"Biology"
] | 1,132 | [
"Genetics techniques",
"Genomics techniques",
"Molecular biology techniques"
] |
34,946,963 | https://en.wikipedia.org/wiki/Fusion%20ignition | Fusion ignition is the point at which a nuclear fusion reaction becomes self-sustaining. This occurs when the energy being given off by the reaction heats the fuel mass more rapidly than it cools. In other words, fusion ignition is the point at which the increasing self-heating of the nuclear fusion removes the need fo... | Fusion ignition | [
"Physics",
"Chemistry"
] | 935 | [
"Nuclear fusion",
"Nuclear physics"
] |
31,813,101 | https://en.wikipedia.org/wiki/Hopeaphenol | Hopeaphenol is a stilbenoid. It is a resveratrol tetramer. It has been first isolated from Dipterocarpaceae like Shorea ovalis. It has also been isolated from wines from North Africa.
It shows an opposite effect to vitisin A on apoptosis of myocytes isolated from adult rat heart.
See also
Phenolic compounds in wine... | Hopeaphenol | [
"Chemistry"
] | 99 | [
"Wine chemistry",
"Alcohol chemistry"
] |
31,813,996 | https://en.wikipedia.org/wiki/Basel%20Declaration | The Basel Declaration is a call for greater transparency and communication on the use of animals in research. It is supported by an international scientific non profit society, the Basel Declaration Society, a forum of scientists established to foster the greatest dissemination and acceptance of the Declaration, and th... | Basel Declaration | [
"Chemistry"
] | 1,872 | [
"Animal testing"
] |
31,816,022 | https://en.wikipedia.org/wiki/Holographic%20weapon%20sight | A holographic weapon sight or holographic diffraction sight is a non-magnifying gunsight that allows the user to look through a glass optical window and see a holographic reticle image superimposed at a distance on the field of view. The hologram of the reticle is built into the window and is illuminated by a laser dio... | Holographic weapon sight | [
"Materials_science",
"Engineering"
] | 960 | [
"Glass engineering and science",
"Optical devices"
] |
31,818,344 | https://en.wikipedia.org/wiki/Irish%20logarithm | The Irish logarithm was a system of number manipulation invented by Percy Ludgate for machine multiplication. The system used a combination of mechanical cams as lookup tables and mechanical addition to sum pseudo-logarithmic indices to produce partial products, which were then added to produce results.
The technique ... | Irish logarithm | [
"Mathematics"
] | 905 | [
"Algorithms",
"Mathematical logic",
"Applied mathematics"
] |
26,165,922 | https://en.wikipedia.org/wiki/HD%2086226%20b | HD 86226 b is a gas giant exoplanet discovered by the Magellan Planet Search Program in 2010. It was confirmed in data collected by the CORALIE spectrograph on the Swiss 1.2-metre Leonhard Euler Telescope in 2012. It takes about 4.6 years to orbit its G-type star and was initially believed to have a minimal mass of 0.9... | HD 86226 b | [
"Astronomy"
] | 149 | [
"Hydra (constellation)",
"Constellations"
] |
4,016,952 | https://en.wikipedia.org/wiki/N-electron%20valence%20state%20perturbation%20theory | In quantum chemistry, n-electron valence state perturbation theory (NEVPT) is a perturbative treatment applicable to multireference CASCI-type wavefunctions. It can be considered as a generalization of the well-known second-order Møller–Plesset perturbation theory to multireference complete active space cases. The theo... | N-electron valence state perturbation theory | [
"Chemistry"
] | 2,351 | [
"Electron",
"Theoretical chemistry",
"Computational chemistry",
"Electron states"
] |
4,018,181 | https://en.wikipedia.org/wiki/Algebraic%20specification | Algebraic specification is a software engineering technique for formally specifying system behavior. It was a very active subject of computer science research around 1980.
Overview
Algebraic specification seeks to systematically develop more efficient programs by:
formally defining types of data, and mathematical op... | Algebraic specification | [
"Engineering"
] | 744 | [
"Software engineering",
"Formal methods"
] |
4,018,549 | https://en.wikipedia.org/wiki/Miller%20process | The Miller process is an industrial-scale chemical procedure used to refine gold to a high degree of purity (99.5%). It was patented by Francis Bowyer Miller in 1867. This chemical process involves blowing chlorine gas through molten, but (slightly) impure, gold. Nearly all metal contaminants react to form chlorides b... | Miller process | [
"Chemistry",
"Materials_science"
] | 289 | [
"Metallurgical processes",
"Metallurgy"
] |
4,019,573 | https://en.wikipedia.org/wiki/Jensen%E2%80%93Shannon%20divergence | In probability theory and statistics, the Jensen–Shannon divergence, named after Johan Jensen and Claude Shannon, is a method of measuring the similarity between two probability distributions. It is also known as information radius (IRad) or total divergence to the average. It is based on the Kullback–Leibler divergen... | Jensen–Shannon divergence | [
"Physics"
] | 993 | [
"Physical quantities",
"Statistical distance",
"Distance"
] |
4,021,238 | https://en.wikipedia.org/wiki/Transcription%20factor%20II%20D | Transcription factor II D (TFIID) is one of several general transcription factors that make up the RNA polymerase II preinitiation complex. RNA polymerase II holoenzyme is a form of eukaryotic RNA polymerase II that is recruited to the promoters of protein-coding genes in living cells. It consists of RNA polymerase II,... | Transcription factor II D | [
"Chemistry",
"Biology"
] | 659 | [
"Biomolecules by chemical classification",
"Gene expression",
"Signal transduction",
"Molecular genetics",
"Induced stem cells",
"Cellular processes",
"Molecular biology",
"Biochemistry",
"Proteins",
"Transcription factors"
] |
4,021,739 | https://en.wikipedia.org/wiki/LaSalle%27s%20invariance%20principle | LaSalle's invariance principle (also known as the invariance principle, Barbashin-Krasovskii-LaSalle principle, or Krasovskii-LaSalle principle) is a criterion for the asymptotic stability of an autonomous (possibly nonlinear) dynamical system.
Global version
Suppose a system is represented as
where is the vect... | LaSalle's invariance principle | [
"Physics",
"Mathematics"
] | 955 | [
"Stability theory",
"Mechanics",
"Dynamical systems"
] |
4,022,741 | https://en.wikipedia.org/wiki/Coactivator%20%28genetics%29 | A coactivator is a type of transcriptional coregulator that binds to an activator (a transcription factor) to increase the rate of transcription of a gene or set of genes. The activator contains a DNA binding domain that binds either to a DNA promoter site or a specific DNA regulatory sequence called an enhancer. Bindi... | Coactivator (genetics) | [
"Chemistry",
"Biology"
] | 1,560 | [
"Biomolecules by chemical classification",
"Gene expression",
"Molecular genetics",
"Cellular processes",
"Molecular biology",
"Biochemistry",
"Proteins"
] |
4,022,767 | https://en.wikipedia.org/wiki/Relativity%20priority%20dispute | Albert Einstein presented the theories of special relativity and general relativity in publications that either contained no formal references to previous literature, or referred only to a small number of his predecessors for fundamental results on which he based his theories, most notably to the work of Henri Poincaré... | Relativity priority dispute | [
"Physics"
] | 8,727 | [
"Theory of relativity"
] |
4,023,059 | https://en.wikipedia.org/wiki/Two-dimensional%20nuclear%20magnetic%20resonance%20spectroscopy | Two-Dimensional Nuclear Magnetic Resonance (2D NMR) is an advanced spectroscopic technique that builds upon the capabilities of one-dimensional (1D) NMR by incorporating an additional frequency dimension. This extension allows for a more comprehensive analysis of molecular structures. In 2D NMR, signals are distributed... | Two-dimensional nuclear magnetic resonance spectroscopy | [
"Physics",
"Chemistry"
] | 4,462 | [
"Nuclear magnetic resonance",
"Spectroscopy",
"Spectrum (physical sciences)",
"Nuclear magnetic resonance spectroscopy"
] |
4,024,093 | https://en.wikipedia.org/wiki/Thermal%20efficiency | In thermodynamics, the thermal efficiency () is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, ACs etc.
For a heat engine, thermal efficiency is the ratio of the net work output to the heat inp... | Thermal efficiency | [
"Physics",
"Chemistry",
"Mathematics",
"Engineering"
] | 3,185 | [
"Thermodynamic properties",
"Physical quantities",
"Engineering thermodynamics",
"Quantity",
"Thermodynamics",
"Mechanical engineering"
] |
30,861,073 | https://en.wikipedia.org/wiki/Fog%20collection | Fog collection is the harvesting of water from fog using large pieces of vertical mesh netting to induce the fog-droplets to flow down towards a trough below. The setup is known as a fog fence, fog collector or fog net. Through condensation, atmospheric water vapour from the air condenses on cold surfaces into droplets... | Fog collection | [
"Chemistry",
"Engineering",
"Environmental_science"
] | 2,319 | [
"Hydrology",
"Water supply",
"Environmental engineering"
] |
30,862,811 | https://en.wikipedia.org/wiki/Rotating%20biological%20contactor | A rotating biological contactor or RBC is a biological fixed-film treatment process used in the secondary treatment of wastewater following primary treatment. The primary treatment process involves removal of grit, sand and coarse suspended material through a screening process, followed by settling of suspended solids.... | Rotating biological contactor | [
"Chemistry",
"Engineering",
"Environmental_science"
] | 1,425 | [
"Water treatment",
"Biodegradable waste management",
"Chemical engineering",
"Chemical equipment",
"Water pollution",
"Biodegradation",
"Civil engineering",
"nan",
"Environmental engineering",
"Water technology",
"Waste treatment technology"
] |
28,034,097 | https://en.wikipedia.org/wiki/European%20Association%20of%20Geoscientists%20and%20Engineers | The European Association of Geoscientists and Engineers (EAGE) is a professional organization for geoscientists and engineers, established in 1951 with a worldwide membership. The association provides a platform for professionals in geophysics, petroleum exploration, geology, reservoir engineering, mining, civil engine... | European Association of Geoscientists and Engineers | [
"Chemistry",
"Engineering"
] | 693 | [
"Petroleum engineering",
"Energy engineering",
"Geotechnical organizations",
"Civil engineering organizations",
"Petroleum",
"Petroleum organizations",
"Energy organizations"
] |
28,034,156 | https://en.wikipedia.org/wiki/CING%20%28biomolecular%20NMR%20structure%29 | In biomolecular structure, CING stands for the Common Interface for NMR structure Generation and is known for structure and NMR data validation.
NMR spectroscopy provides diverse data on the solution structure of biomolecules. CING combines many external programs and internalized algorithms to direct an author of a ne... | CING (biomolecular NMR structure) | [
"Chemistry"
] | 390 | [
"Protein structure",
"Structural biology"
] |
44,864,352 | https://en.wikipedia.org/wiki/Dissimilatory%20sulfate%20reduction | Dissimilatory sulfate reduction is a form of anaerobic respiration that uses sulfate as the terminal electron acceptor to produce hydrogen sulfide. This metabolism is found in some types of bacteria and archaea which are often termed sulfate-reducing organisms. The term "dissimilatory" is used when hydrogen sulfide ()... | Dissimilatory sulfate reduction | [
"Chemistry"
] | 493 | [
"Sulfur metabolism",
"Metabolism"
] |
44,865,976 | https://en.wikipedia.org/wiki/Premixed%20turbulent%20flames | In a premixed turbulent flame, fuel and oxidizer are being mixed by turbulence during a sufficiently long time before combustion is initiated. The deposition of energy from the spark generates a flame kernel that grows at first by laminar, then by turbulent flame propagation. And in which the oxidizer has been mixed wi... | Premixed turbulent flames | [
"Chemistry"
] | 148 | [
"Turbulence",
"Combustion",
"Chemical reaction stubs",
"Chemical process stubs",
"Fluid dynamics"
] |
44,867,070 | https://en.wikipedia.org/wiki/Magnesium%20monohydride | Magnesium monohydride is a molecular gas with formula MgH that exists at high temperatures, such as the atmospheres of the Sun and stars. It was originally known as magnesium hydride, although that name is now more commonly used when referring to the similar chemical magnesium dihydride.
History
George Downing Liveing... | Magnesium monohydride | [
"Chemistry"
] | 2,088 | [
"Metal hydrides",
"Inorganic compounds",
"Reducing agents"
] |
44,876,201 | https://en.wikipedia.org/wiki/Setchell%20Carlson | The Setchell Carlson Company was a manufacturer of radios, electronic equipment, and televisions from 1928 until the 1960s. The company was founded in St. Paul, Minnesota, in 1928 by Bart Setchell and Carl Donald Carlson under the name "Karadio Corporation", and its first product was a car radio. The company took the n... | Setchell Carlson | [
"Engineering"
] | 232 | [
"Radio electronics",
"Radio manufacturers"
] |
38,895,549 | https://en.wikipedia.org/wiki/C25H30O8 | {{DISPLAYTITLE:C25H30O8}}
The molecular formula C25H30O8 (molar mass: 458.501 g/mol, exact mass: 458.1941 u) may refer to:
Kadsurin
Mallotojaponin B
Molecular formulas | C25H30O8 | [
"Physics",
"Chemistry"
] | 64 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
38,896,498 | https://en.wikipedia.org/wiki/Snub%20hexaoctagonal%20tiling | In geometry, the snub hexaoctagonal tiling is a semiregular tiling of the hyperbolic plane. There are three triangles, one hexagon, and one octagon on each vertex. It has Schläfli symbol of sr{8,6}.
Images
Drawn in chiral pairs, with edges missing between black triangles:
Related polyhedra and tilings
From a Wyth... | Snub hexaoctagonal tiling | [
"Physics",
"Chemistry"
] | 274 | [
"Snub tilings",
"Semiregular tilings",
"Isogonal tilings",
"Tessellation",
"Chirality",
"Hyperbolic tilings",
"Chiral figures",
"Symmetry"
] |
38,899,475 | https://en.wikipedia.org/wiki/Terradynamics | Terradynamics is the study of forces and movement during terrestrial locomotion (particularly that using legs) on ground that can flow such as sand and soil. The term "terradynamics" is used in analogy to aerodynamics for flying in the air and hydrodynamics for swimming in water. Terradynamics has been used "to predic... | Terradynamics | [
"Physics"
] | 126 | [
"Physical phenomena",
"Motion (physics)",
"Robot locomotion"
] |
38,899,596 | https://en.wikipedia.org/wiki/Transfer%20line | A transfer line is a manufacturing system which consists of a predetermined sequence of machines connected by an automated material handling system and designed for working on a very small family of parts. Parts can be moved singularly because there’s no need for batching when carrying parts between process stations (a... | Transfer line | [
"Engineering"
] | 319 | [
"Manufacturing",
"Mechanical engineering"
] |
38,899,724 | https://en.wikipedia.org/wiki/Unified%20interoperability | Unified interoperability is the property of a system that allows for the integration of real-time and non-real time communications, activities, data, and information services (i.e., unified) and the display and coordination of those services across systems and devices (i.e., interoperability). Unified interoperability ... | Unified interoperability | [
"Engineering"
] | 952 | [
"Telecommunications engineering",
"Interoperability"
] |
38,899,889 | https://en.wikipedia.org/wiki/Transformation%20Priority%20Premise | Transformation Priority Premise (TPP) is a programming approach developed by Robert C. Martin (Uncle Bob) as a refinement to make the process of test-driven development (TDD) easier and more effective for a computer programmer.
Transformation Priority Premise states that simpler transformations should be preferred:
T... | Transformation Priority Premise | [
"Engineering"
] | 397 | [
"Software engineering",
"Software testing"
] |
38,904,907 | https://en.wikipedia.org/wiki/Centre%20for%20Advanced%202D%20Materials | The Centre for Advanced 2D Materials (CA2DM), at the National University of Singapore (NUS), is the first centre in Asia dedicated to graphene research. The centre was established under the scientific advice of two Nobel Laureates in physics – Prof Andre Geim and Prof Konstantin Novoselov - who won the 2010 Nobel Prize... | Centre for Advanced 2D Materials | [
"Materials_science"
] | 901 | [
"Nanotechnology",
"Nanotechnology institutions"
] |
38,905,019 | https://en.wikipedia.org/wiki/Prosopine | Prosopine is an alkaloid found in Prosopis africana.
References
Alkaloids
Alkaloids found in Fabaceae | Prosopine | [
"Chemistry"
] | 30 | [
"Organic compounds",
"Biomolecules by chemical classification",
"Natural products",
"Alkaloids"
] |
21,779,590 | https://en.wikipedia.org/wiki/GRB%20970508 | GRB 970508 was a gamma-ray burst (GRB) detected on May 8, 1997, at 21:42 UTC; it is historically important as the second GRB (after GRB 970228) with a detected afterglow at other wavelengths, the first to have a direct redshift measurement of the afterglow, and the first to be detected at radio wavelengths.
A gamma-r... | GRB 970508 | [
"Astronomy"
] | 2,336 | [
"Camelopardalis",
"Constellations"
] |
21,779,600 | https://en.wikipedia.org/wiki/Transition%20path%20sampling | Transition path sampling (TPS) is a rare-event sampling method used in computer simulations of rare events: physical or chemical transitions of a system from one stable state to another that occur too rarely to be observed on a computer timescale. Examples include protein folding, chemical reactions and nucleation. Sta... | Transition path sampling | [
"Physics",
"Chemistry"
] | 1,471 | [
"Molecular physics",
"Monte Carlo methods",
"Computational physics",
"Molecular dynamics",
"Computational chemistry",
"Theoretical chemistry",
"nan"
] |
21,782,811 | https://en.wikipedia.org/wiki/Equatorial%20Rossby%20wave | Equatorial Rossby waves, often called planetary waves, are very long, low frequency water waves found near the equator and are derived using the equatorial beta plane approximation.
Mathematics
Using the equatorial beta plane approximation, , where β is the variation of the Coriolis parameter with latitude, . With ... | Equatorial Rossby wave | [
"Physics",
"Environmental_science"
] | 773 | [
"Oceanography",
"Hydrology",
"Applied and interdisciplinary physics"
] |
21,784,317 | https://en.wikipedia.org/wiki/Direct%20and%20indirect%20band%20gaps | In semiconductors, the band gap of a semiconductor can be of two basic types, a direct band gap or an indirect band gap. The minimal-energy state in the conduction band and the maximal-energy state in the valence band are each characterized by a certain crystal momentum (k-vector) in the Brillouin zone. If the k-vect... | Direct and indirect band gaps | [
"Physics",
"Chemistry",
"Materials_science"
] | 1,626 | [
"Electron",
"Electronic band structures",
"Condensed matter physics"
] |
21,787,021 | https://en.wikipedia.org/wiki/Movat%27s%20stain | Movat's stain is a pentachrome stain originally developed by Henry Zoltan Movat (1923–1995), a Hungarian-Canadian Pathologist in Toronto in 1955 to highlight the various constituents of connective tissue, especially cardiovascular tissue, by five colors in a single stained slide. In 1972, H. K. Russell, Jr. modified th... | Movat's stain | [
"Chemistry",
"Biology"
] | 311 | [
"Staining",
"Microbiology techniques",
"Cell imaging",
"Microscopy"
] |
21,787,470 | https://en.wikipedia.org/wiki/Alpha%20particle | Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay but may also be produced in other ways. Alpha particles are named after the first letter in the Gr... | Alpha particle | [
"Physics",
"Chemistry"
] | 3,707 | [
"Ionizing radiation",
"Physical phenomena",
"Radiation",
"Nuclear physics",
"Radioactivity"
] |
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