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 |
|---|---|---|---|---|---|---|
3,842,182 | https://en.wikipedia.org/wiki/Cord%20%28unit%29 | The cord is a unit of measure of dry volume used to measure firewood and pulpwood in the United States and Canada.
A cord is the amount of wood that, when "racked and well stowed" (arranged so pieces are aligned, parallel, touching, and compact), occupies a volume of . This corresponds to a well-stacked woodpile high... | Cord (unit) | [
"Mathematics"
] | 729 | [
"Units of volume",
"Quantity",
"Units of measurement"
] |
3,846,249 | https://en.wikipedia.org/wiki/Beryllide | Beryllide is an intermetallic compound of beryllium with other metals, e.g. zirconium, tantalum, titanium, nickel, or cobalt. Typical chemical formulae are Be12Ti and FeBe5. These are hard, metal-like materials that display properties distinct from the constituents, especially with regards to their resilience toward ... | Beryllide | [
"Physics",
"Chemistry",
"Materials_science"
] | 228 | [
"Inorganic compounds",
"Alloy stubs",
"Metallurgy",
"Intermetallics",
"Condensed matter physics",
"Alloys"
] |
24,421,488 | https://en.wikipedia.org/wiki/Macromolecular%20Reaction%20Engineering | Macromolecular Reaction Engineering is a peer-reviewed scientific journal published monthly by Wiley-VCH. The journal covers academic and industrial research in the field of polymer reaction engineering, which includes polymer science. It emerged from a section that was part of Macromolecular Materials and Engineering.... | Macromolecular Reaction Engineering | [
"Materials_science",
"Engineering"
] | 329 | [
"Materials science journals",
"Materials science"
] |
24,422,145 | https://en.wikipedia.org/wiki/Deuterated%20dichloromethane | Deuterated dichloromethane (CDCl or CHCl) is a form (isotopologue) of dichloromethane (DCM, CHCl) in which the hydrogen atoms (H) are deuterium (heavy hydrogen) (H or D). Deuterated DCM is not a common solvent used in NMR spectroscopy as it is expensive compared to deuterated chloroform.
Notes
References
Deuterated ... | Deuterated dichloromethane | [
"Chemistry"
] | 100 | [
"Deuterated solvents",
"Nuclear magnetic resonance",
"Organic compounds",
"Nuclear chemistry stubs",
"Nuclear magnetic resonance stubs",
"Organic compound stubs",
"Organic chemistry stubs"
] |
24,423,385 | https://en.wikipedia.org/wiki/Jacobsen%27s%20catalyst | Jacobsen's catalyst is the common name for N,N'-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminomanganese(III) chloride, a coordination compound of manganese and a salen-type ligand. It is used as an asymmetric catalyst in the Jacobsen epoxidation, which is renowned for its ability to enantioselectively trans... | Jacobsen's catalyst | [
"Chemistry"
] | 1,289 | [
"Catalysis",
"Catalysts",
"Coordination chemistry",
"Chemical kinetics",
"Metal salen complexes"
] |
24,424,135 | https://en.wikipedia.org/wiki/C15H16O5 | {{DISPLAYTITLE:C15H16O5}}
The molecular formula C15H16O5 (molar mass: 276.28 g/mol, exact mass: 276.099774 u) may refer to:
Dihydromethysticin, a kavalactone found in the kava plant
Lactucin, a bitter sesquiterpene lactone found in lettuce
Vernolepin, a sesquiterpene lactone found in Vernonia amygdalina
Molecular ... | C15H16O5 | [
"Physics",
"Chemistry"
] | 115 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,424,496 | https://en.wikipedia.org/wiki/C12H8O4 | {{DISPLAYTITLE:C12H8O4}}
The molecular formula C12H8O4 (molar mass : 216.19 g/mol) may refer to:
Bergapten, a psoralen found in bergamot essential oil
Methoxsalen, a drug used to treat psoriasis, eczema or vitiligo
2,6-Naphthalenedicarboxylic acid
Molecular formulas | C12H8O4 | [
"Physics",
"Chemistry"
] | 96 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,425,189 | https://en.wikipedia.org/wiki/Center%20for%20Stem%20Cell%20and%20Regenerative%20Medicine | The Center for Stem Cell and Regenerative Medicine (CSCRM) is a medical research institution specializing in stem cell and other cell therapy research and treatments, located in Cleveland, Ohio. They specialize in basic and clinical research programs, biomedical and tissue engineering programs, and the development and... | Center for Stem Cell and Regenerative Medicine | [
"Chemistry",
"Biology"
] | 209 | [
"Translational medicine",
"Tissue engineering",
"Stem cell research"
] |
24,426,190 | https://en.wikipedia.org/wiki/WGAViewer | WGAViewer is a bioinformatics software tool which is designed to visualize, annotate, and help interpret the results generated from a genome wide association study (GWAS). Alongside the P values of association, WGAViewer allows a researcher to visualize and consider other supporting evidence, such as the genomic contex... | WGAViewer | [
"Chemistry",
"Biology"
] | 541 | [
"Genetics techniques",
"Genomics techniques",
"Molecular biology techniques"
] |
24,428,035 | https://en.wikipedia.org/wiki/Alpha%20oxidation | Alpha oxidation (α-oxidation) is a process by which certain branched-chain fatty acids are broken down by removal of a single carbon from the carboxyl end. In humans, alpha-oxidation is used in peroxisomes to break down dietary phytanic acid, which cannot undergo beta-oxidation due to its β-methyl branch, into pristani... | Alpha oxidation | [
"Chemistry",
"Biology"
] | 379 | [
"Lipid biochemistry",
"Biochemistry",
"Cell biology",
"nan",
"Metabolic pathways",
"Lipid metabolism",
"Metabolism"
] |
24,430,115 | https://en.wikipedia.org/wiki/No%20Cross%2C%20No%20Crown | No Cross, No Crown is one of the chief works of William Penn, first published in 1669. It was written during Penn's imprisonment in the Tower of London.
Summary
Penn exhorts the spirit of Primitive Christianity. The book is divided into two parts, the first dealing with the importance of self-denial in the Christian l... | No Cross, No Crown | [
"Biology"
] | 231 | [
"Behavior",
"Altruism"
] |
27,702,148 | https://en.wikipedia.org/wiki/Delta%20scale | The δ (delta) scale is a non-octave repeating musical scale. It may be regarded as the beta scale's reciprocal, since it is "as far 'down' the (0 3 6 9) circle from α as β is 'up'". As such it would split the minor second (presumably 16:15) into eight equal parts of approximately 14 cents each . This would total approx... | Delta scale | [
"Physics"
] | 315 | [
"Physical quantities",
"Musical symmetry",
"Logarithmic scales of measurement",
"Equal temperaments",
"Symmetry"
] |
27,704,246 | https://en.wikipedia.org/wiki/Iljumun | Iljumun is the first gate at the entrance to many Korean Buddhist temples. Called the "One-Pillar Gate", because when viewed from the side the gate appears to be supported by a single pillar.
Description
The Iljumun is one of the three major types of gates constructed on the path that leads to the temple and often il... | Iljumun | [
"Engineering"
] | 318 | [
"Architecture stubs",
"Architecture"
] |
27,704,310 | https://en.wikipedia.org/wiki/Hongsalmun | In architecture, a hongsalmun is a gate for entering a sacred place in Korea. Hongsalmun, also called hongjeonmun or hongmun, are usually erected to indicate Korean Confucian sites, such as shrines, tombs, and academies such as hyanggyo and seowon. The gate indicates entry to a sacred realm.
Features
Hongsalmun liter... | Hongsalmun | [
"Engineering"
] | 292 | [
"Architecture stubs",
"Architecture"
] |
27,712,079 | https://en.wikipedia.org/wiki/Friedrich-Karl%20Thielemann | Friedrich-Karl "Friedel“ Thielemann (born 17 April 1951 in Mülheim an der Ruhr) is a German-Swiss theoretical astrophysicist.
Thielemann studied at the TH Darmstadt, where he in 1976 he acquired his Diplom. In 1980 he earned his PhD under Wolfgang Hillebrandt (in Garching) and E. R. Hilf in nuclear astrophysics. As a ... | Friedrich-Karl Thielemann | [
"Physics"
] | 481 | [
"Theoretical physics",
"Theoretical physicists"
] |
2,864,360 | https://en.wikipedia.org/wiki/Pertussis%20toxin | Pertussis toxin (PT) is a protein-based AB5-type exotoxin produced by the bacterium Bordetella pertussis, which causes whooping cough. PT is involved in the colonization of the respiratory tract and the establishment of infection. Research suggests PT may have a therapeutic role in treating a number of common human ail... | Pertussis toxin | [
"Chemistry",
"Biology"
] | 1,718 | [
"Microbiology",
"Protein classification",
"Signal transduction",
"Microscopy",
"Biochemistry",
"Protein families",
"Neurochemistry"
] |
2,864,595 | https://en.wikipedia.org/wiki/Shapiro%20reaction | The Shapiro reaction or tosylhydrazone decomposition is an organic reaction in which a ketone or aldehyde is converted to an alkene through an intermediate hydrazone in the presence of 2 equivalents of organolithium reagent. The reaction was discovered by Robert H. Shapiro in 1967. The Shapiro reaction was used in the ... | Shapiro reaction | [
"Chemistry"
] | 1,094 | [
"Olefination reactions",
"Carbon-carbon bond forming reactions",
"Coupling reactions",
"Organic redox reactions",
"Organic reactions",
"Name reactions"
] |
2,864,696 | https://en.wikipedia.org/wiki/String%20cosmology | String cosmology is a relatively new field that tries to apply equations of string theory to solve the questions of early cosmology. A related area of study is brane cosmology.
Overview
This approach can be dated back to a paper by Gabriele Veneziano that shows how an inflationary cosmological model can be obtained f... | String cosmology | [
"Physics",
"Astronomy"
] | 1,036 | [
"Astronomical hypotheses",
"Astronomical sub-disciplines",
"Theoretical physics",
"Astrophysics",
"General relativity",
"Theory of relativity",
"String theory",
"Physical cosmology"
] |
2,865,100 | https://en.wikipedia.org/wiki/Conformal%20family | In theoretical physics, a conformal family is an irreducible representation of the Virasoro algebra. In most cases, it is uniquely determined by its primary field or the highest weight vector. The family contains all of its descendant fields.
References
See also
Conformal field theory
Conformal field theory | Conformal family | [
"Physics"
] | 61 | [
"Quantum mechanics",
"Quantum physics stubs"
] |
2,865,794 | https://en.wikipedia.org/wiki/Instituto%20Tecnol%C3%B3gico%20de%20Aeron%C3%A1utica | The Instituto Tecnológico de Aeronáutica (ITA; ) is an institution of higher education maintained by the Brazilian Air Force and is located in São José dos Campos, Brazil. ITA is consistently ranked as one of the top engineering schools in Brazil and engages in advanced research in aerospace science and technology.
IT... | Instituto Tecnológico de Aeronáutica | [
"Engineering"
] | 2,271 | [
"Aeronautical engineering schools",
"Engineering universities and colleges",
"Aeronautics organizations"
] |
2,866,340 | https://en.wikipedia.org/wiki/Equipotential | In mathematics and physics, an equipotential or isopotential refers to a region in space where every point is at the same potential. This usually refers to a scalar potential (in that case it is a level set of the potential), although it can also be applied to vector potentials. An equipotential of a scalar potential ... | Equipotential | [
"Physics",
"Mathematics"
] | 559 | [
"Calculus",
"Applied mathematics",
"Theoretical physics",
"Multivariable calculus",
"Mathematical physics"
] |
2,867,520 | https://en.wikipedia.org/wiki/M1%20protein | The M1 protein is a matrix protein of the influenza virus. It forms a coat inside the viral envelope. This is a bifunctional membrane/RNA-binding protein that mediates the encapsidation of nucleoprotein cores into the membrane envelope. It is therefore required that M1 binds both membrane and RNA simultaneously.
The M... | M1 protein | [
"Chemistry"
] | 295 | [
"Membrane biology",
"Molecular biology"
] |
2,867,718 | https://en.wikipedia.org/wiki/Intrinsically%20disordered%20proteins | In molecular biology, an intrinsically disordered protein (IDP) is a protein that lacks a fixed or ordered three-dimensional structure, typically in the absence of its macromolecular interaction partners, such as other proteins or RNA. IDPs range from fully unstructured to partially structured and include random coil, ... | Intrinsically disordered proteins | [
"Chemistry"
] | 4,326 | [
"Protein structure",
"Structural biology"
] |
2,868,301 | https://en.wikipedia.org/wiki/Acoustic%20Doppler%20current%20profiler | An acoustic doppler current profiler (ADCP) is a hydroacoustic current meter similar to a sonar, used to measure water current velocities over a depth range using the Doppler effect of sound waves scattered back from particles within the water column. The term ADCP is a generic term for all acoustic current profilers, ... | Acoustic Doppler current profiler | [
"Physics",
"Chemistry",
"Technology",
"Engineering"
] | 1,654 | [
"Ocean currents",
"Oceanographic instrumentation",
"Applied and interdisciplinary physics",
"Measuring instruments",
"Physical oceanography",
"Fluid dynamics"
] |
2,868,583 | https://en.wikipedia.org/wiki/List%20of%20planar%20symmetry%20groups | This article summarizes the classes of discrete symmetry groups of the Euclidean plane. The symmetry groups are named here by three naming schemes: International notation, orbifold notation, and Coxeter notation.
There are three kinds of symmetry groups of the plane:
2 families of rosette groups – 2D point groups
7 fri... | List of planar symmetry groups | [
"Physics",
"Mathematics"
] | 625 | [
"Functions and mappings",
"Euclidean symmetries",
"Mathematical objects",
"Mathematical relations",
"Symmetry"
] |
2,868,762 | https://en.wikipedia.org/wiki/Hexagonal%20lattice | The hexagonal lattice (sometimes called triangular lattice) is one of the five two-dimensional Bravais lattice types. The symmetry category of the lattice is wallpaper group p6m. The primitive translation vectors of the hexagonal lattice form an angle of 120° and are of equal lengths,
The reciprocal lattice of the ... | Hexagonal lattice | [
"Chemistry",
"Materials_science",
"Mathematics"
] | 256 | [
"Crystallography",
"Lattice points",
"Crystal systems",
"Number theory"
] |
2,869,000 | https://en.wikipedia.org/wiki/Atovaquone | Atovaquone, sold under the brand name Mepron, is an antimicrobial medication for the prevention and treatment of Pneumocystis jirovecii pneumonia (PCP).
Atovaquone is a chemical compound that belongs to the class of naphthoquinones. Atovaquone is a hydroxy-1,4-naphthoquinone, an analog of both ubiquinone and lawsone.
... | Atovaquone | [
"Biology"
] | 613 | [
"Antiprotozoal agents",
"Biocides"
] |
2,870,010 | https://en.wikipedia.org/wiki/Wandering%20set | In dynamical systems and ergodic theory, the concept of a wandering set formalizes a certain idea of movement and mixing. When a dynamical system has a wandering set of non-zero measure, then the system is a dissipative system. This is the opposite of a conservative system, to which the Poincaré recurrence theorem appl... | Wandering set | [
"Physics",
"Mathematics"
] | 818 | [
"Limit sets",
"Ergodic theory",
"Topology",
"Mechanics",
"Dynamical systems"
] |
2,870,161 | https://en.wikipedia.org/wiki/Bell%27s%20spaceship%20paradox | Bell's spaceship paradox is a thought experiment in special relativity. It was first described by E. Dewan and M. Beran in 1959 but became more widely known after John Stewart Bell elaborated the idea further in 1976. A delicate thread hangs between two spaceships initially at rest in the inertial frame S. They start a... | Bell's spaceship paradox | [
"Physics"
] | 3,288 | [
"Theory of relativity"
] |
2,870,168 | https://en.wikipedia.org/wiki/Tensor%E2%80%93vector%E2%80%93scalar%20gravity | Tensor–vector–scalar gravity (TeVeS), developed by Jacob Bekenstein in 2004, is a relativistic generalization of Mordehai Milgrom's Modified Newtonian dynamics (MOND) paradigm.
The main features of TeVeS can be summarized as follows:
As it is derived from the action principle, TeVeS respects conservation laws;
In th... | Tensor–vector–scalar gravity | [
"Physics",
"Astronomy"
] | 1,179 | [
"Astronomical sub-disciplines",
"Theoretical physics",
"Astrophysics",
"Theories of gravity"
] |
2,870,273 | https://en.wikipedia.org/wiki/Chiral%20auxiliary | In stereochemistry, a chiral auxiliary is a stereogenic group or unit that is temporarily incorporated into an organic compound in order to control the stereochemical outcome of the synthesis. The chirality present in the auxiliary can bias the stereoselectivity of one or more subsequent reactions. The auxiliary can th... | Chiral auxiliary | [
"Physics",
"Chemistry"
] | 3,648 | [
"Spacetime",
"Stereochemistry",
"Space",
"nan"
] |
35,740,129 | https://en.wikipedia.org/wiki/Square%20antiprismatic%20molecular%20geometry | In chemistry, the square antiprismatic molecular geometry describes the shape of compounds where eight atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a square antiprism. This shape has D4d symmetry and is one of the three common shapes for octacoordinate transition metal... | Square antiprismatic molecular geometry | [
"Physics",
"Chemistry"
] | 333 | [
"Molecules",
"Molecular geometry",
"Stereochemistry",
"Space",
"nan",
"Spacetime",
"Matter"
] |
35,740,250 | https://en.wikipedia.org/wiki/Capped%20square%20antiprismatic%20molecular%20geometry | In chemistry, the capped square antiprismatic molecular geometry describes the shape of compounds where nine atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a gyroelongated square pyramid. The symmetry group of the resulting object is C4v
The gyroelongated square pyramid... | Capped square antiprismatic molecular geometry | [
"Physics",
"Chemistry"
] | 455 | [
"Molecular geometry",
"Molecules",
"Stereochemistry",
"Space",
"Stereochemistry stubs",
"nan",
"Spacetime",
"Matter"
] |
35,741,857 | https://en.wikipedia.org/wiki/Neosaxitoxin | Neosaxitoxin (NSTX) is included, as other saxitoxin-analogs, in a broad group of natural neurotoxic alkaloids, commonly known as the paralytic shellfish toxins (PSTs). The parent compound of PSTs, saxitoxin (STX), is a tricyclic perhydropurine alkaloid, which can be substituted at various positions, leading to more tha... | Neosaxitoxin | [
"Chemistry"
] | 2,880 | [
"Pharmacology",
"Alkaloids by chemical classification",
"Guanidine alkaloids",
"Medicinal chemistry"
] |
35,742,703 | https://en.wikipedia.org/wiki/3D%20bioprinting | Three dimensional (3D) bioprinting is the use of 3D printing–like techniques to combine cells, growth factors, bio-inks, and biomaterials to fabricate functional structures that were traditionally used for tissue engineering applications but in recent times have seen increased interest in other applications such as bio... | 3D bioprinting | [
"Physics",
"Chemistry",
"Engineering",
"Biology"
] | 4,084 | [
"Biomaterials",
"Synthetic biology",
"Biological engineering",
"Behavior",
"Reproduction",
"Cloning",
"Chemical engineering",
"Self-replication",
"Bioinformatics",
"Materials",
"Molecular genetics",
"Tissue engineering",
"Matter",
"Medical technology"
] |
35,745,858 | https://en.wikipedia.org/wiki/Degree%20of%20reaction | In turbomachinery, degree of reaction or reaction ratio (denoted ) is defined as the ratio of the change in static pressure in the rotating blades of a compressor or turbine, to the static pressure change in the compressor or turbine stage. Alternatively it is the ratio of static enthalpy change in the rotor to the sta... | Degree of reaction | [
"Physics",
"Chemistry",
"Engineering",
"Environmental_science"
] | 1,381 | [
"Pumps",
"Hydrology",
"Turbomachinery",
"Gas compressors",
"Turbines",
"Physical systems",
"Hydraulics",
"Civil engineering",
"Hydraulic engineering"
] |
5,195,676 | https://en.wikipedia.org/wiki/Ergun%20equation | The Ergun equation, derived by the Turkish chemical engineer Sabri Ergun in 1952, expresses the friction factor in a packed column as a function of the modified Reynolds number.
Equation
where:
is the modified Reynolds number,
is the packed bed friction factor,
is the pressure drop across the bed,
is th... | Ergun equation | [
"Chemistry",
"Mathematics",
"Engineering"
] | 409 | [
"Chemical engineering",
"Mathematical objects",
"Equations",
"Piping",
"Chemical process engineering",
"Fluid dynamics"
] |
21,453,848 | https://en.wikipedia.org/wiki/Lipid%20bilayer%20characterization | Lipid bilayer characterization is the use of various optical, chemical and physical probing methods to study the properties of lipid bilayers. Many of these techniques are elaborate and require expensive equipment because the fundamental nature of the lipid bilayer makes it a very difficult structure to study. An indiv... | Lipid bilayer characterization | [
"Chemistry"
] | 2,625 | [
"Membrane biology",
"Molecular biology"
] |
21,457,419 | https://en.wikipedia.org/wiki/Bacterial%20cellular%20morphologies | Bacterial cellular morphologies are the shapes that are characteristic of various types of bacteria and often key to their identification. Their direct examination under a light microscope enables the classification of these bacteria (and archaea).
Generally, the basic morphologies are spheres (coccus) and round-ended... | Bacterial cellular morphologies | [
"Biology"
] | 2,589 | [
"Prokaryotes",
"Microorganisms",
"Bacteria",
"Morphology (biology)"
] |
2,062,754 | https://en.wikipedia.org/wiki/Homothetic%20vector%20field | In physics, a homothetic vector field (sometimes homothetic collineation or homothety) is a projective vector field which satisfies the condition:
where c is a real constant. Homothetic vector fields find application in the study of singularities in general relativity. They can also be used to generate new solutions f... | Homothetic vector field | [
"Physics"
] | 109 | [
"Relativity stubs",
"Theory of relativity"
] |
2,062,984 | https://en.wikipedia.org/wiki/Higher-dimensional%20Einstein%20gravity | Higher-dimensional Einstein gravity is any of various physical theories that attempt to generalise to higher dimensions various results of the well established theory of standard (four-dimensional) Albert Einstein's gravitational theory, that is, general relativity. This attempt at generalisation has been strongly infl... | Higher-dimensional Einstein gravity | [
"Physics",
"Mathematics"
] | 569 | [
"Exact solutions in general relativity",
"Theoretical physics",
"Mathematical objects",
"Equations",
"Theories of gravity"
] |
2,063,011 | https://en.wikipedia.org/wiki/Love%20wave | In elastodynamics, Love waves, named after Augustus Edward Hough Love, are horizontally polarized surface waves. The Love wave is a result of the interference of many shear waves (S-waves) guided by an elastic layer, which is welded to an elastic half space on one side while bordering a vacuum on the other side. In sei... | Love wave | [
"Physics"
] | 864 | [
"Physical phenomena",
"Applied and interdisciplinary physics",
"Surface waves",
"Waves",
"Geophysics"
] |
2,063,517 | https://en.wikipedia.org/wiki/Plate-fin%20heat%20exchanger | A plate-fin heat exchanger is a type of heat exchanger design that uses plates and finned chambers to transfer heat between fluids, most commonly gases. It is often categorized as a compact heat exchanger to emphasize its relatively high heat transfer surface area to volume ratio.
The plate-fin heat exchanger is widely... | Plate-fin heat exchanger | [
"Chemistry",
"Engineering"
] | 1,016 | [
"Chemical process engineering",
"Chemical equipment",
"Industrial gases",
"Heat exchangers"
] |
2,063,558 | https://en.wikipedia.org/wiki/Symplectic%20integrator | In mathematics, a symplectic integrator (SI) is a numerical integration scheme for Hamiltonian systems. Symplectic integrators form the subclass of geometric integrators which, by definition, are canonical transformations. They are widely used in nonlinear dynamics, molecular dynamics, discrete element methods, acceler... | Symplectic integrator | [
"Physics",
"Mathematics"
] | 1,894 | [
"Hamiltonian mechanics",
"Theoretical physics",
"Classical mechanics",
"Dynamical systems"
] |
2,063,672 | https://en.wikipedia.org/wiki/Thermodynamic%20beta | In statistical thermodynamics, thermodynamic beta, also known as coldness, is the reciprocal of the thermodynamic temperature of a system: (where is the temperature and is Boltzmann constant).
Thermodynamic beta has units reciprocal to that of energy (in SI units, reciprocal joules, ). In non-thermal units, it can a... | Thermodynamic beta | [
"Physics",
"Mathematics"
] | 814 | [
"Scalar physical quantities",
"Statistical mechanics",
"Quantity",
"Physical quantities"
] |
2,065,799 | https://en.wikipedia.org/wiki/Biopesticide | A Biopesticide is a biological substance or organism that damages, kills, or repels organisms seens as pests. Biological pest management intervention involves predatory, parasitic, or chemical relationships.
They are obtained from organisms including plants, bacteria and other microbes, fungi, nematodes, etc. They ar... | Biopesticide | [
"Biology"
] | 2,037 | [
"nan",
"Biotechnology"
] |
2,065,830 | https://en.wikipedia.org/wiki/Inverse%20photoemission%20spectroscopy | Inverse photoemission spectroscopy (IPES) is a surface science technique used to study the unoccupied electronic structure of surfaces, thin films, and adsorbates. A well-collimated beam of electrons of a well defined energy (< 20 eV) is directed at the sample. These electrons couple to high-lying unoccupied electronic... | Inverse photoemission spectroscopy | [
"Physics",
"Chemistry",
"Materials_science"
] | 661 | [
"Spectrum (physical sciences)",
"Electron spectroscopy",
"Emission spectroscopy",
"Surface science",
"Condensed matter physics",
"Spectroscopy"
] |
2,066,262 | https://en.wikipedia.org/wiki/Multi-configurational%20self-consistent%20field | Multi-configurational self-consistent field (MCSCF) is a method in quantum chemistry used to generate qualitatively correct reference states of molecules in cases where Hartree–Fock and density functional theory are not adequate (e.g., for molecular ground states which are quasi-degenerate with low-lying excited states... | Multi-configurational self-consistent field | [
"Physics",
"Chemistry"
] | 1,120 | [
"Quantum chemistry",
"Quantum mechanics",
"Computational physics",
"Electronic structure methods",
"Computational chemistry"
] |
2,067,016 | https://en.wikipedia.org/wiki/Lithium%20tantalate | Lithium tantalate is the inorganic compound with the formula LiTaO3. It is a white, diamagnetic, water-insoluble solid. The compound has the perovskite structure. It has optical, piezoelectric, and pyroelectric properties. Considerable information is available from commercial sources about this material.
Synthesis an... | Lithium tantalate | [
"Physics",
"Chemistry",
"Materials_science"
] | 303 | [
"Physical phenomena",
"Materials science stubs",
"Lithium salts",
"Tantalates",
"Inorganic compounds",
"Salts",
"Inorganic compound stubs",
"Crystallography stubs",
"Materials",
"Electrical phenomena",
"Crystallography",
"Crystals",
"Piezoelectric materials",
"Matter"
] |
2,067,581 | https://en.wikipedia.org/wiki/Routh%E2%80%93Hurwitz%20theorem | In mathematics, the Routh–Hurwitz theorem gives a test to determine whether all roots of a given polynomial lie in the left-half complex plane. Polynomials with this property are called Hurwitz stable polynomials. The Routh–Hurwitz theorem is important in dynamical systems and control theory, because the characteristi... | Routh–Hurwitz theorem | [
"Physics",
"Mathematics"
] | 514 | [
"Theorems in mathematical analysis",
"Equations of physics",
"Theorems in algebra",
"Theorems in real analysis",
"Theorems in complex analysis",
"Eponymous theorems of physics",
"Theorems about polynomials",
"Physics theorems"
] |
28,987,440 | https://en.wikipedia.org/wiki/Photochemical%20reduction%20of%20carbon%20dioxide | Photochemical reduction of carbon dioxide harnesses solar energy to convert into higher-energy products. Environmental interest in producing artificial systems is motivated by recognition that CO2 is a greenhouse gas. The process has not been commercialized.
Overview
Photochemical reduction involves chemical reducti... | Photochemical reduction of carbon dioxide | [
"Chemistry"
] | 875 | [
"Greenhouse gases",
"Carbon dioxide",
"nan"
] |
28,989,696 | https://en.wikipedia.org/wiki/James%20Clerk%20Maxwell | James Clerk Maxwell (13 June 1831 – 5 November 1879) was a Scottish physicist and mathematician who was responsible for the classical theory of electromagnetic radiation, which was the first theory to describe electricity, magnetism and light as different manifestations of the same phenomenon. Maxwell's equations for ... | James Clerk Maxwell | [
"Physics",
"Chemistry"
] | 6,910 | [
"Thermodynamics",
"Thermodynamicists"
] |
28,993,982 | https://en.wikipedia.org/wiki/Quantum%20algebra | Quantum algebra is one of the top-level mathematics categories used by the arXiv. It is the study of noncommutative analogues and generalizations of commutative algebras, especially those arising in Lie theory.
Subjects include:
Quantum groups
Skein theories
Operadic algebra
Diagrammatic algebra
Quantum field theory
... | Quantum algebra | [
"Physics",
"Mathematics"
] | 115 | [
"Algebra",
"Algebra stubs",
"Quantum mechanics",
"Quantum physics stubs"
] |
38,526,503 | https://en.wikipedia.org/wiki/Chronometric%20singularity | In theoretical physics, a chronometric singularity (also called a temporal or horological singularity) is a point at which time cannot be measured or described.
An example involves a time at a coordinate singularity, e.g. a geographical pole. Since time on Earth is measured through longitudes, and no unique longitude ... | Chronometric singularity | [
"Physics",
"Mathematics"
] | 178 | [
"Physical quantities",
"Time",
"Applied mathematics",
"Timekeeping",
"Spacetime",
"Geodesy"
] |
38,529,941 | https://en.wikipedia.org/wiki/Personal%20safety%20app | A personal safety app or SOS app is a mobile application designed to provide individuals with additional security and assistance in various situations. These apps offer a range of features and functionalities that users can utilize to enhance their personal safety. Common features include emergency alerts, location sha... | Personal safety app | [
"Technology"
] | 689 | [
"Warning systems",
"Alarms"
] |
38,529,942 | https://en.wikipedia.org/wiki/Volatile%20corrosion%20inhibitor | A volatile corrosion inhibitor (VCI) is a material that protects metals from corrosion. Corrosion inhibitors are chemical compounds that can decrease the corrosion rate of a material, typically a metal or an alloy. NACE International Standard TM0208 defines volatile corrosion inhibitor (VCI) as a chemical substance tha... | Volatile corrosion inhibitor | [
"Chemistry",
"Materials_science"
] | 3,125 | [
"Corrosion prevention",
"Metallurgy",
"Coatings",
"Corrosion",
"Electrochemistry",
"Corrosion inhibitors",
"Materials degradation",
"Process chemicals"
] |
38,530,507 | https://en.wikipedia.org/wiki/Pittsburgh%20Glass%20Center | The Pittsburgh Glass Center is a gallery, glass studio, and public-access school dedicated to teaching, creating and promoting studio glass art. It is located on Penn Avenue in the Friendship neighborhood of Pittsburgh. It has features works by Paul Joseph Stankard and classes taught by Dante Marioni, Davide Salvador... | Pittsburgh Glass Center | [
"Materials_science",
"Engineering"
] | 333 | [
"Glass engineering and science",
"Glassmaking schools",
"Glass museums and galleries"
] |
38,532,467 | https://en.wikipedia.org/wiki/Inherent%20viscosity | In polymer science, inherent viscosity is the ratio of the natural logarithm of the relative viscosity of a polymer to its mass concentration. Inherent viscosity scales inversely to mass density, and a common unit is dL/g.
Inherent viscosity is defined as where is the mass concentration of the polymer and is the ... | Inherent viscosity | [
"Physics"
] | 137 | [
"Physical phenomena",
"Physical quantities",
"Wikipedia categories named after physical quantities",
"Viscosity",
"Physical properties"
] |
33,064,180 | https://en.wikipedia.org/wiki/Coulson%E2%80%93Fischer%20theory | In theoretical chemistry and molecular physics, Coulson–Fischer theory provides a quantum mechanical description of the electronic structure of molecules. The 1949 seminal work of Coulson and Fischer established a theory of molecular electronic structure which combines the strengths of the two rival theories which emer... | Coulson–Fischer theory | [
"Physics",
"Chemistry"
] | 374 | [
"Quantum chemistry stubs",
"Molecular physics",
"Quantum chemistry",
"Theoretical chemistry stubs",
"Quantum mechanics",
"Computational physics",
"Theoretical chemistry",
"Electronic structure methods",
"Computational chemistry",
" molecular",
"nan",
"Atomic",
"Molecular physics stubs",
"P... |
33,065,815 | https://en.wikipedia.org/wiki/%CE%94P | ΔP (Delta P) is a mathematical term symbolizing a change (Δ) in pressure (P).
Uses
Young–Laplace equation
Darcy–Weisbach equation
Given that the head loss hf expresses the pressure loss Δp as the height of a column of fluid,
where ρ is the density of the fluid. The Darcy–Weisbach equation can also be written in term... | ΔP | [
"Physics",
"Mathematics"
] | 428 | [
"Scalar physical quantities",
"Mechanical quantities",
"Physical quantities",
"Applied mathematics",
"Pressure",
"nan",
"Wikipedia categories named after physical quantities",
"Mathematics in medicine"
] |
33,066,922 | https://en.wikipedia.org/wiki/Fire%20room | On a ship, the fire room, or FR or boiler room or stokehold, referred to the space, or spaces, of a vessel where water was brought to a boil. The steam was then transmitted to a separate engine room, often (but not always) located immediately aft, where it was utilized to power the vessel. To increase the safety and da... | Fire room | [
"Engineering"
] | 1,389 | [
"Marine propulsion",
"Marine engineering"
] |
33,070,822 | https://en.wikipedia.org/wiki/Sacrificial%20metal | A sacrificial metal is a metal used as a sacrificial anode in cathodic protection that corrodes to prevent a primary metal from corrosion or rusting. It may also be used for galvanization.
Equation
When two metals touch each other and water is present, electrolysis occurs. One well known example is the reaction betwee... | Sacrificial metal | [
"Chemistry",
"Materials_science",
"Engineering"
] | 453 | [
"Corrosion prevention",
"Metallurgy",
"Materials science",
"Corrosion",
"Electrochemistry",
"nan",
"Electrochemistry stubs",
"Physical chemistry stubs"
] |
33,072,764 | https://en.wikipedia.org/wiki/National%20Ganga%20River%20Basin%20Authority | National Ganga River Basin Authority (NGRBA) is a financing, planning, implementing, monitoring and coordinating authority for the Ganges River, functioning under the Ministry of Jal Shakti, of India. The mission of the organisation is to safeguard the drainage basin which feeds water into the Ganges by protecting it f... | National Ganga River Basin Authority | [
"Chemistry",
"Engineering"
] | 649 | [
"Ecological restoration",
"Environmental engineering"
] |
25,844,292 | https://en.wikipedia.org/wiki/Fundamental%20theorem%20of%20linear%20programming | In mathematical optimization, the fundamental theorem of linear programming states, in a weak formulation, that the maxima and minima of a linear function over a convex polygonal region occur at the region's corners. Further, if an extreme value occurs at two corners, then it must also occur everywhere on the line segm... | Fundamental theorem of linear programming | [
"Mathematics"
] | 260 | [
"Theorems in mathematical analysis",
"Mathematical analysis",
"Mathematical problems",
"Mathematical theorems"
] |
22,917,401 | https://en.wikipedia.org/wiki/Volute%20%28pump%29 | A volute is a curved funnel that increases in area as it approaches the discharge port. The volute of a centrifugal pump is the casing that receives the fluid being pumped by the impeller, maintaining the velocity of the fluid through to the diffuser. As liquid exits the impeller it has high kinetic energy and the v... | Volute (pump) | [
"Physics",
"Chemistry",
"Engineering"
] | 368 | [
"Pumps",
"Turbomachinery",
"Chemical engineering",
"Physical systems",
"Hydraulics",
"Piping",
"Fluid dynamics"
] |
22,920,002 | https://en.wikipedia.org/wiki/Determinantal%20variety | In algebraic geometry, determinantal varieties are spaces of matrices with a given upper bound on their ranks. Their significance comes from the fact that many examples in algebraic geometry are of this form, such as the Segre embedding of a product of two projective spaces.
Definition
Given m and n and r < min(m, n)... | Determinantal variety | [
"Mathematics"
] | 594 | [
"Fields of abstract algebra",
"Algebraic geometry"
] |
37,092,814 | https://en.wikipedia.org/wiki/Pterobranchia%20mitochondrial%20code | The pterobranchia mitochondrial code (translation table 24) is a genetic code used by the mitochondrial genome of Rhabdopleura compacta (Pterobranchia). The Pterobranchia are one of the two groups in the Hemichordata which together with the Echinodermata and Chordata form the three major lineages of deuterostomes. AUA... | Pterobranchia mitochondrial code | [
"Chemistry",
"Biology"
] | 705 | [
"Protein biosynthesis",
"Gene expression",
"Molecular genetics",
"Biosynthesis",
"Cellular processes",
"Molecular biology",
"Biochemistry"
] |
37,094,071 | https://en.wikipedia.org/wiki/Station%20clock | A station clock is a clock at a railway station that provides a standard indication of time to both passengers and railway staff.
A railway station will often have several station clocks. They can be found in a clock tower, in the booking hall or office, on the concourse, inside a train shed, on or facing the station... | Station clock | [
"Physics",
"Technology",
"Engineering"
] | 312 | [
"Physical systems",
"Machines",
"Clocks",
"Measuring instruments"
] |
34,554,373 | https://en.wikipedia.org/wiki/Reentrant%20superconductivity | In physics, reentrant superconductivity is an effect observed in systems that lie close to the boundary between ferromagnetic and superconducting. By its very nature (normal) superconductivity (condensation of electrons into the BCS ground state) cannot exist together with ferromagnetism (condensation of electrons into... | Reentrant superconductivity | [
"Physics",
"Materials_science",
"Engineering"
] | 404 | [
"Physical quantities",
"Superconductivity",
"Materials science",
"Condensed matter physics",
"Electrical resistance and conductance"
] |
34,557,525 | https://en.wikipedia.org/wiki/NucleaRDB | The NucleaRDB is a database of nuclear receptors. It contains data about the sequences, ligand binding constants and mutations of those proteins.
See also
Nuclear receptor
References
External links
https://web.archive.org/web/20120409204749/http://www.receptors.org/nucleardb/.
Biological databases
Intracellular re... | NucleaRDB | [
"Chemistry",
"Biology"
] | 79 | [
"Gene expression",
"Protein classification",
"Signal transduction",
"Bioinformatics",
"Induced stem cells",
"Protein families",
"Biological databases",
"Transcription factors"
] |
1,422,176 | https://en.wikipedia.org/wiki/Developmental%20robotics | Developmental robotics (DevRob), sometimes called epigenetic robotics, is a scientific field which aims at studying the developmental mechanisms, architectures and constraints that allow lifelong and open-ended learning of new skills and new knowledge in embodied machines. As in human children, learning is expected to ... | Developmental robotics | [
"Engineering"
] | 3,083 | [
"Robotics engineering",
"Machine learning",
"Automation",
"Robot control",
"Robotics",
"Artificial intelligence engineering"
] |
1,422,748 | https://en.wikipedia.org/wiki/Nonlinear%20Schr%C3%B6dinger%20equation | In theoretical physics, the (one-dimensional) nonlinear Schrödinger equation (NLSE) is a nonlinear variation of the Schrödinger equation. It is a classical field equation whose principal applications are to the propagation of light in nonlinear optical fibers and planar waveguides and to Bose–Einstein condensates conf... | Nonlinear Schrödinger equation | [
"Physics"
] | 2,187 | [
"Equations of physics",
"Integrable systems",
"Theoretical physics",
"Eponymous equations of physics",
"Quantum mechanics",
"Schrödinger equation"
] |
1,424,913 | https://en.wikipedia.org/wiki/Vis%20viva | Vis viva (from the Latin for "living force") is a historical term used to describe a quantity similar to kinetic energy in an early formulation of the principle of conservation of energy.
Overview
Proposed by Gottfried Leibniz over the period 1676–1689, the theory was controversial as it seemed to oppose the theory of... | Vis viva | [
"Physics",
"Chemistry",
"Mathematics",
"Engineering"
] | 950 | [
"Theoretical physics",
"History of thermodynamics",
"Mechanics",
"Thermodynamics",
"Mechanical engineering",
"Dynamical systems",
"Obsolete theories in physics"
] |
1,425,422 | https://en.wikipedia.org/wiki/Electric%20arc%20furnace | An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc.
Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to about 400-tonne units used for secondary steelmaking. Arc furnaces used in re... | Electric arc furnace | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 5,744 | [
"Electric arcs",
"Physical phenomena",
"Metallurgical processes",
"Plasma phenomena",
"Steelmaking",
"Metallurgy",
"Materials science",
"Industrial furnaces",
"nan"
] |
31,557,888 | https://en.wikipedia.org/wiki/Quasi-Frobenius%20ring | In mathematics, especially ring theory, the class of Frobenius rings and their generalizations are the extension of work done on Frobenius algebras. Perhaps the most important generalization is that of quasi-Frobenius rings (QF rings), which are in turn generalized by right pseudo-Frobenius rings (PF rings) and right ... | Quasi-Frobenius ring | [
"Mathematics"
] | 1,256 | [
"Fields of abstract algebra",
"Ring theory",
"Module theory"
] |
31,559,837 | https://en.wikipedia.org/wiki/Kirchhoff%27s%20diffraction%20formula | Kirchhoff's diffraction formula (also called Fresnel–Kirchhoff diffraction formula) approximates light intensity and phase in optical diffraction: light fields in the boundary regions of shadows. The approximation
can be used to model light propagation in a wide range of configurations, either analytically or using nu... | Kirchhoff's diffraction formula | [
"Physics",
"Chemistry",
"Materials_science"
] | 2,556 | [
"Physical phenomena",
"Spectrum (physical sciences)",
"Waves",
"Motion (physics)",
"Diffraction",
"Crystallography",
"Spectroscopy"
] |
31,559,945 | https://en.wikipedia.org/wiki/Collapsible%20flow | Collapsible flow is a phenomenon that occurs in steady flow in tubes with significant distensibility, or the capability of swelling or stretching, under conditions of lower internal pressure relative to pressure outside the tube. Such conditions occur rarely in industrial applications but are very common in biological ... | Collapsible flow | [
"Physics",
"Chemistry",
"Engineering"
] | 614 | [
"Continuum mechanics",
"Building engineering",
"Chemical engineering",
"Classical mechanics",
"Flow regimes",
"Mechanical engineering",
"Piping",
"Fluid dynamics"
] |
31,562,046 | https://en.wikipedia.org/wiki/Synthetic%20ion%20channels | Synthetic ion channels are de novo chemical compounds that insert into lipid bilayers, form pores, and allow ions to flow from one side to the other. They are man-made analogues of natural ion channels, and are thus also known as artificial ion channels. Compared to biological channels, they usually allow fluxes of s... | Synthetic ion channels | [
"Chemistry",
"Materials_science",
"Engineering",
"Biology"
] | 2,494 | [
"Synthetic biology",
"Biological engineering",
"Materials science",
"Bioinformatics",
"Molecular genetics",
"nan",
"Molecular biology",
"Biochemistry",
"Nanotechnology",
"Neurochemistry",
"Ion channels",
"Supramolecular chemistry"
] |
6,828,483 | https://en.wikipedia.org/wiki/Tideline | A tideline refers to where two currents in the ocean converge. Driftwood, floating seaweed, foam, and other floating debris may accumulate, forming sinuous lines called tidelines (although they generally have nothing to do with the tide).
There are four mechanisms that can cause tidelines to form:
Where one body of ... | Tideline | [
"Physics"
] | 201 | [
"Applied and interdisciplinary physics",
"Physical oceanography"
] |
6,830,376 | https://en.wikipedia.org/wiki/Balz%E2%80%93Schiemann%20reaction | The Balz–Schiemann reaction (also called the Schiemann reaction) is a chemical reaction in which a primary aromatic amine is transformed to an aryl fluoride via a diazonium tetrafluoroborate intermediate. This reaction is a traditional route to fluorobenzene and some related derivatives, including 4-fluorobenzoic acid.... | Balz–Schiemann reaction | [
"Chemistry"
] | 468 | [
"Name reactions"
] |
6,830,742 | https://en.wikipedia.org/wiki/Bioorganometallic%20chemistry | Bioorganometallic chemistry is the study of biologically active molecules that contain carbon directly bonded to metals or metalloids. The importance of main-group and transition-metal centers has long been recognized as important to the function of enzymes and other biomolecules. However, only a small subset of natur... | Bioorganometallic chemistry | [
"Chemistry",
"Biology"
] | 1,376 | [
"Medicinal inorganic chemistry",
"Medicinal chemistry",
"nan",
"Biochemistry",
"Organometallic chemistry",
"Bioinorganic chemistry"
] |
6,831,289 | https://en.wikipedia.org/wiki/Swinging%20Atwood%27s%20machine | The swinging Atwood's machine (SAM) is a mechanism that resembles a simple Atwood's machine except that one of the masses is allowed to swing in a two-dimensional plane, producing a dynamical system that is chaotic for some system parameters and initial conditions.
Specifically, it comprises two masses (the pendulum, ... | Swinging Atwood's machine | [
"Physics",
"Mathematics"
] | 2,295 | [
"Hamiltonian mechanics",
"Theoretical physics",
"Classical mechanics",
"Dynamical systems"
] |
6,832,907 | https://en.wikipedia.org/wiki/Oxatomide | Oxatomide, sold under the brand name Tinset among others, is a antihistamine of the diphenylmethylpiperazine family which is marketed in Europe, Japan, and a number of other countries. It was discovered at Janssen Pharmaceutica in 1975. Oxatomide lacks any anticholinergic effects. In addition to its H1 receptor antagon... | Oxatomide | [
"Chemistry"
] | 273 | [
"Organic compounds",
"Ureas"
] |
6,834,050 | https://en.wikipedia.org/wiki/Submucosa | The submucosa (or tela submucosa) is a thin layer of tissue in various organs of the gastrointestinal, respiratory, and genitourinary tracts. It is the layer of dense irregular connective tissue that supports the mucosa (mucous membrane) and joins it to the muscular layer, the bulk of overlying smooth muscle (fibers ru... | Submucosa | [
"Chemistry",
"Biology"
] | 825 | [
"Digestive system",
"Organ systems",
"Membrane biology",
"Molecular biology"
] |
24,435,370 | https://en.wikipedia.org/wiki/Isogeometric%20analysis | Isogeometric analysis is a computational approach that offers the possibility of integrating finite element analysis (FEA) into conventional NURBS-based CAD design tools. Currently, it is necessary to convert data between CAD and FEA packages to analyse new designs during development, a difficult task since the two com... | Isogeometric analysis | [
"Engineering"
] | 1,580 | [
"Computer-aided design",
"Design engineering"
] |
24,436,033 | https://en.wikipedia.org/wiki/C24H33NO3 | {{DISPLAYTITLE:C24H33NO3}}
The molecular formula C24H33NO3 (molar mass: 383.52 g/mol, exact mass: 383.2460 u) may refer to:
Denaverine
Guineesine
Naftidrofuryl, also known as nafronyl
Molecular formulas | C24H33NO3 | [
"Physics",
"Chemistry"
] | 76 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,436,179 | https://en.wikipedia.org/wiki/C23H32N2O3 | {{DISPLAYTITLE:C23H32N2O3}}
The molecular formula C23H32N2O3 (molar mass: 384.512 g/mol, exact mass: 384.2413 u) may refer to:
MDMB-CHMICA
Zipeprol
Molecular formulas | C23H32N2O3 | [
"Physics",
"Chemistry"
] | 68 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,437,420 | https://en.wikipedia.org/wiki/Roller%20mill | Roller mills are mills that use cylindrical rollers, either in opposing pairs or against flat plates, to crush or grind various materials, such as grain, ore, gravel, plastic, and others. Roller grain mills are an alternative to traditional millstone arrangements in gristmills. Roller mills for rock complement other ty... | Roller mill | [
"Engineering"
] | 713 | [
"Mining equipment"
] |
24,440,200 | https://en.wikipedia.org/wiki/Kotcherlakota%20Rangadhama%20Rao | Prof. Kotcherlakota Rangadhama Rao (9 September 1898 – 20 June 1972) was an Indian physicist in the field of Spectroscopy.
Rangadhama Rao is best known for his work on spectroscopy, his role in the development of Nuclear Quadrupole Resonance (NQR), and his long association with the physics laboratories of Andhra Unive... | Kotcherlakota Rangadhama Rao | [
"Physics"
] | 1,940 | [
"Experimental physics",
"Experimental physicists"
] |
35,750,318 | https://en.wikipedia.org/wiki/Product%20operator%20formalism | In NMR spectroscopy, the product operator formalism is a method used to determine the outcome of pulse sequences in a rigorous but straightforward way. With this method it is possible to predict how the bulk magnetization evolves with time under the action of pulses applied in different directions. It is a net improvem... | Product operator formalism | [
"Physics",
"Chemistry"
] | 2,824 | [
"Nuclear magnetic resonance",
"Nuclear physics"
] |
35,752,192 | https://en.wikipedia.org/wiki/Committed%20dose | The committed dose in radiological protection is a measure of the stochastic health risk due to an intake of radioactive material into the human body. Stochastic in this context is defined as the probability of cancer induction and genetic damage, due to low levels of radiation. The SI unit of measure is the sievert.
... | Committed dose | [
"Physics",
"Chemistry",
"Materials_science"
] | 2,954 | [
"Radiation effects",
"Radiation health effects",
"Radioactivity",
"Nuclear physics"
] |
35,756,077 | https://en.wikipedia.org/wiki/Hermite%20reciprocity | In mathematics, Hermite's law of reciprocity, introduced by , states that the degree m covariants of a binary form of degree n correspond to the degree n covariants of a binary form of degree m. In terms of representation theory it states that the representations Sm Sn C2 and Sn Sm C2 of GL2 are isomorphic.
References... | Hermite reciprocity | [
"Physics"
] | 81 | [
"Invariant theory",
"Group actions",
"Symmetry"
] |
3,848,049 | https://en.wikipedia.org/wiki/Lattice%20energy | In chemistry, the lattice energy is the energy change upon formation of one mole of a crystalline ionic compound from its constituent ions, which are assumed to initially be in the gaseous state. It is a measure of the cohesive forces that bind ionic solids. The size of the lattice energy is connected to many other p... | Lattice energy | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 1,121 | [
"Materials science",
"Crystallography",
"Condensed matter physics",
"nan",
"Solid-state chemistry"
] |
3,849,994 | https://en.wikipedia.org/wiki/Computational%20electromagnetics | Computational electromagnetics (CEM), computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment using computers.
It typically involves using computer programs to compute approximate solutions to Maxwell's equ... | Computational electromagnetics | [
"Physics",
"Mathematics",
"Technology"
] | 4,759 | [
"Computational electromagnetics",
"Computational fields of study",
"Computational physics",
"Computing and society",
"Electrodynamics",
"Dynamical systems"
] |
3,850,488 | https://en.wikipedia.org/wiki/Slow%20light | In optics, slow light is the propagation of an optical pulse or other modulation of an optical carrier at a very low group velocity. Slow light occurs when a propagating pulse is substantially slowed by the interaction with the medium in which the propagation takes place.
Group velocities below the speed of light in v... | Slow light | [
"Physics"
] | 2,111 | [
"Physical phenomena",
"Spectrum (physical sciences)",
"Electromagnetic spectrum",
"Waves",
"Light"
] |
3,852,404 | https://en.wikipedia.org/wiki/Acoustic%20holography | Acoustic holography is a technique that allows three-dimensional distributions of sound waves called sound fields to be stored and reconstructed. To do this, sound passing through a surface is recorded as a two-dimensional pattern called a hologram (a type of interferogram). The hologram contains information about the ... | Acoustic holography | [
"Physics",
"Mathematics"
] | 413 | [
"Sound measurements",
"Physical quantities",
"Quantity",
"Classical mechanics",
"Acoustics"
] |
3,852,580 | https://en.wikipedia.org/wiki/Gaussian%20fixed%20point | A Gaussian fixed point is a fixed point of the renormalization group flow which is noninteracting in the sense that it is described by a free field theory. The word Gaussian comes from the fact that the probability distribution is Gaussian at the Gaussian fixed point. This means that Gaussian fixed points are exactly s... | Gaussian fixed point | [
"Physics"
] | 121 | [
"Statistical mechanics stubs",
"Physical phenomena",
"Critical phenomena",
"Quantum mechanics",
"Renormalization group",
"Statistical mechanics",
"Quantum physics stubs"
] |
3,853,922 | https://en.wikipedia.org/wiki/Wave%20function%20renormalization | In quantum field theory, wave function renormalization is a rescaling (or renormalization) of quantum fields to take into account the effects of interactions. For a noninteracting or free field, the field operator creates or annihilates a single particle with probability 1. Once interactions are included, however, this... | Wave function renormalization | [
"Physics"
] | 232 | [
"Physical phenomena",
"Critical phenomena",
"Quantum mechanics",
"Renormalization group",
"Statistical mechanics",
"Quantum physics stubs"
] |
3,854,163 | https://en.wikipedia.org/wiki/Cryogenic%20particle%20detector | Cryogenic particle detectors operate at very low temperature, typically only a few degrees above absolute zero. These sensors interact with an energetic elementary particle (such as a photon) and deliver a signal that can be related to the type of particle and the nature of the interaction. While many types of particle... | Cryogenic particle detector | [
"Physics",
"Chemistry",
"Materials_science",
"Technology",
"Engineering"
] | 1,702 | [
"Physical phenomena",
"Phase transitions",
"Superconductivity",
"Phases of matter",
"Measuring instruments",
"Superfluidity",
"Particle detectors",
"Superconducting detectors",
"Condensed matter physics",
"Exotic matter",
"Sensors",
"Matter",
"Fluid dynamics"
] |
3,854,225 | https://en.wikipedia.org/wiki/Waveguide%20%28radio%20frequency%29 | In radio-frequency engineering and communications engineering, a waveguide is a hollow metal pipe used to carry radio waves. This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as... | Waveguide (radio frequency) | [
"Physics",
"Mathematics",
"Engineering"
] | 3,835 | [
"Physical phenomena",
"Telecommunications engineering",
"Classical mechanics",
"Waves",
"Wave mechanics",
"Electrodynamics",
"Electrical engineering",
"Dynamical systems"
] |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.