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 |
|---|---|---|---|---|---|---|
2,023,440 | https://en.wikipedia.org/wiki/FR-2 | FR-2 (Flame Resistant 2) is a NEMA designation for synthetic resin bonded paper, a composite material made of paper impregnated with a plasticized phenol formaldehyde resin, used in the manufacture of printed circuit boards. Its main properties are similar to NEMA grade XXXP (MIL-P-3115) material, and can be substitute... | FR-2 | [
"Physics",
"Chemistry",
"Engineering"
] | 378 | [
"Synthetic materials",
"Composite materials",
"Printed circuit board manufacturing",
"Materials",
"Electronic engineering",
"Electrical engineering",
"Synthetic paper",
"Matter"
] |
2,024,237 | https://en.wikipedia.org/wiki/Sulfide%20stress%20cracking | Sulfide stress cracking (SSC) is a form of hydrogen embrittlement which is a cathodic cracking mechanism. It should not be confused with the term stress corrosion cracking which is an anodic cracking mechanism. Susceptible alloys, especially steels, react with hydrogen sulfide (), forming metal sulfides (MeS) and atomi... | Sulfide stress cracking | [
"Chemistry",
"Materials_science",
"Engineering"
] | 380 | [
"Metallurgy",
"Materials science",
"Corrosion",
"Electrochemistry",
"Electrochemistry stubs",
"Materials degradation",
"Physical chemistry stubs",
"Chemical process stubs"
] |
2,024,795 | https://en.wikipedia.org/wiki/Mathematical%20formulation%20of%20the%20Standard%20Model | This article describes the mathematics of the Standard Model of particle physics, a gauge quantum field theory containing the internal symmetries of the unitary product group . The theory is commonly viewed as describing the fundamental set of particles – the leptons, quarks, gauge bosons and the Higgs boson.
The Stan... | Mathematical formulation of the Standard Model | [
"Physics"
] | 6,259 | [
"Standard Model",
"Physical phenomena",
"Electroweak theory",
"Fundamental interactions",
"Particle physics"
] |
2,025,632 | https://en.wikipedia.org/wiki/Superalloy | A superalloy, or high-performance alloy, is an alloy with the ability to operate at a high fraction of its melting point. Key characteristics of a superalloy include mechanical strength, thermal creep deformation resistance, surface stability, and corrosion and oxidation resistance.
The crystal structure is typically ... | Superalloy | [
"Chemistry",
"Materials_science",
"Engineering"
] | 10,160 | [
"Aerospace materials",
"Metallurgy",
"Materials science",
"Superalloys",
"Alloys",
"nan",
"Aerospace engineering"
] |
2,025,734 | https://en.wikipedia.org/wiki/Entropic%20force | In physics, an entropic force acting in a system is an emergent phenomenon resulting from the entire system's statistical tendency to increase its entropy, rather than from a particular underlying force on the atomic scale.
Mathematical formulation
In the canonical ensemble, the entropic force associated to a macro... | Entropic force | [
"Physics",
"Materials_science",
"Engineering"
] | 1,889 | [
"Applied and interdisciplinary physics",
"Physical quantities",
"Soft matter",
"Materials science",
"Thermodynamic entropy",
"Entropy",
"Condensed matter physics",
"nan",
"Statistical mechanics"
] |
22,784,974 | https://en.wikipedia.org/wiki/List%20of%20fusion%20power%20technologies | The following is a list of fusion power technologies that have been practically attempted:
Pioneers
Beam-target (Oliphant, 1934)
Convergent shock-waves (Huemul, Argentina)
Magneto-electrostatic toroid trap (ATOLL, Artsimovich)
Tokamak (T-1 to 10, Kurchatov Institute, JET, ITER is under construction, and many m... | List of fusion power technologies | [
"Physics",
"Chemistry"
] | 649 | [
"Nuclear fusion",
"Fusion power",
"Plasma physics"
] |
35,607,283 | https://en.wikipedia.org/wiki/Superfluidity | Superfluidity is the characteristic property of a fluid with zero viscosity which therefore flows without any loss of kinetic energy. When stirred, a superfluid forms vortices that continue to rotate indefinitely. Superfluidity occurs in two isotopes of helium (helium-3 and helium-4) when they are liquefied by cooling ... | Superfluidity | [
"Physics",
"Chemistry",
"Materials_science",
"Engineering"
] | 1,044 | [
"Physical phenomena",
"Phase transitions",
"Chemical engineering",
"Phases of matter",
"Superfluidity",
"Condensed matter physics",
"Exotic matter",
"Piping",
"Matter",
"Fluid dynamics"
] |
35,610,132 | https://en.wikipedia.org/wiki/Cyclopentadienyliron%20dicarbonyl%20dimer | Cyclopentadienyliron dicarbonyl dimer is an organometallic compound with the formula [(η5-C5H5)Fe(CO)2]2, often abbreviated to Cp2Fe2(CO)4, [CpFe(CO)2]2 or even Fp2, with the colloquial name "fip dimer". It is a dark reddish-purple crystalline solid, which is readily soluble in moderately polar organic solvents such as... | Cyclopentadienyliron dicarbonyl dimer | [
"Chemistry",
"Materials_science"
] | 2,823 | [
"Half sandwich compounds",
"Cyclopentadienyl complexes",
"Dimers (chemistry)",
"Polymer chemistry",
"Organometallic chemistry"
] |
35,610,473 | https://en.wikipedia.org/wiki/Video-based%20reflection | Video-based reflection is a reflective practice technique in which video recordings, rather than one's own memory, is used as a basis for reflection and professional growth. Video-based reflection is used with moderations in various professional fields, e.g. in the field of education and pedagogy. Several workshop form... | Video-based reflection | [
"Biology"
] | 345 | [
"Personal development",
"Behavior",
"Human behavior"
] |
35,611,343 | https://en.wikipedia.org/wiki/Covalent%20bond%20classification%20method | The covalent bond classification (CBC) method, also referred to as LXZ notation, is a way of describing covalent compounds such as organometallic complexes in a way that is not prone to limitations resulting from the definition of oxidation state. Instead of simply assigning a charge (oxidation state) to an atom in th... | Covalent bond classification method | [
"Physics",
"Chemistry",
"Materials_science"
] | 718 | [
"Chemical bonding",
"Condensed matter physics",
"nan"
] |
35,611,432 | https://en.wikipedia.org/wiki/Quantum%20Bayesianism | In physics and the philosophy of physics, quantum Bayesianism is a collection of related approaches to the interpretation of quantum mechanics, the most prominent of which is QBism (pronounced "cubism"). QBism is an interpretation that takes an agent's actions and experiences as the central concerns of the theory. QBis... | Quantum Bayesianism | [
"Physics"
] | 5,198 | [
"Interpretations of quantum mechanics",
"Quantum mechanics"
] |
32,924,598 | https://en.wikipedia.org/wiki/Continuous%20testing | Continuous testing is the process of executing automated tests as part of the software delivery pipeline to obtain immediate feedback on the business risks associated with a software release candidate. Continuous testing was originally proposed as a way of reducing waiting time for feedback to developers by introducing... | Continuous testing | [
"Engineering"
] | 1,994 | [
"Software engineering",
"Software testing"
] |
32,924,961 | https://en.wikipedia.org/wiki/Neotropical%20fish | The freshwater fish of tropical South and Central America, represent one of the most diverse and extreme aquatic ecosystems on Earth, with more than 5,600 species, representing about 10% all living vertebrate species. The exceptional diversity of species, adaptations, and life histories observed in the Neotropical ich... | Neotropical fish | [
"Biology"
] | 473 | [
"Aquatic ecology",
"Ecosystems"
] |
32,927,433 | https://en.wikipedia.org/wiki/Neutron%20stimulated%20emission%20computed%20tomography | Neutron stimulated emission computed tomography (NSECT) uses induced gamma emission through neutron inelastic scattering to generate images of the spatial distribution of elements in a sample.
Clinical Applications
NSECT has been shown to be effective in detecting liver iron overload disorders and breast cancer. Du... | Neutron stimulated emission computed tomography | [
"Chemistry"
] | 497 | [
"Scattering",
"Neutron scattering"
] |
32,928,344 | https://en.wikipedia.org/wiki/BBX%20%28gene%29 | HMG box transcription factor BBX also known as bobby sox homolog or HMG box-containing protein 2 is a protein that in humans is encoded by the BBX gene.
References
External links
Further reading
Transcription factors
Genes mutated in mice | BBX (gene) | [
"Chemistry",
"Biology"
] | 50 | [
"Induced stem cells",
"Gene expression",
"Transcription factors",
"Signal transduction"
] |
32,933,846 | https://en.wikipedia.org/wiki/Bloch%20group | In mathematics, the Bloch group is a cohomology group of the Bloch–Suslin complex, named after Spencer Bloch and Andrei Suslin. It is closely related to polylogarithm, hyperbolic geometry and algebraic K-theory.
Bloch–Wigner function
The dilogarithm function is the function defined by the power series
It can be exte... | Bloch group | [
"Mathematics"
] | 826 | [
"Fields of abstract algebra",
"Topology",
"Algebraic topology"
] |
32,933,985 | https://en.wikipedia.org/wiki/Cobot | A cobot, or collaborative robot, also known as a companion robot, is a robot intended for direct human-robot interaction within a shared space, or where humans and robots are in close proximity. Cobot applications contrast with traditional industrial robot applications in which robots are isolated from human contact or... | Cobot | [
"Technology",
"Engineering"
] | 1,836 | [
"Social robots",
"Industrial robots",
"Computing and society"
] |
32,934,654 | https://en.wikipedia.org/wiki/Liquid%20Robotics | Liquid Robotics is an American marine robotics corporation that designs, manufactures and sells the Wave Glider, a wave and solar powered unmanned surface vehicle (USV). The Wave Glider harvests energy from ocean waves for propulsion. With this energy source, Wave Gliders can spend many months at a time at sea, collect... | Liquid Robotics | [
"Technology",
"Engineering"
] | 1,504 | [
"Oceanographic instrumentation",
"Measuring instruments"
] |
902,820 | https://en.wikipedia.org/wiki/Emissivity | The emissivity of the surface of a material is its effectiveness in emitting energy as thermal radiation. Thermal radiation is electromagnetic radiation that most commonly includes both visible radiation (light) and infrared radiation, which is not visible to human eyes. A portion of the thermal radiation from very hot... | Emissivity | [
"Physics",
"Chemistry",
"Mathematics",
"Engineering"
] | 3,352 | [
"Transport phenomena",
"Physical phenomena",
"Heat transfer",
"Telecommunications engineering",
"Physical quantities",
"Quantity",
"Thermodynamics",
"Physical properties",
"Radiometry"
] |
903,117 | https://en.wikipedia.org/wiki/Karyorrhexis | Karyorrhexis (from Greek κάρυον karyon 'kernel, seed, nucleus' and ῥῆξις rhexis 'bursting') is the destructive fragmentation of the nucleus of a dying cell whereby its chromatin is distributed irregularly throughout the cytoplasm. It is usually preceded by pyknosis and can occur as a result of either programmed cell de... | Karyorrhexis | [
"Chemistry",
"Biology"
] | 1,564 | [
"Signal transduction",
"Senescence",
"Cellular senescence",
"Cellular processes",
"Programmed cell death"
] |
903,171 | https://en.wikipedia.org/wiki/Pyknosis | Pyknosis, or karyopyknosis, is the irreversible condensation of chromatin in the nucleus of a cell undergoing necrosis or apoptosis. It is followed by karyorrhexis, or fragmentation of the nucleus.
Pyknosis (from Ancient Greek meaning "thick, closed or condensed") is also observed in the maturation of erythrocytes (a ... | Pyknosis | [
"Chemistry",
"Biology"
] | 2,263 | [
"Signal transduction",
"Cellular senescence",
"Senescence",
"Cellular processes",
"Programmed cell death"
] |
903,303 | https://en.wikipedia.org/wiki/Diazotroph | Diazotrophs are bacteria and archaea that fix atmospheric nitrogen (N2) in the atmosphere into bioavailable forms such as ammonia.
A diazotroph is a microorganism that is able to grow without external sources of fixed nitrogen. Examples of organisms that do this are rhizobia and Frankia and Azospirillum. All diazotro... | Diazotroph | [
"Chemistry",
"Environmental_science"
] | 2,237 | [
"Environmental microbiology",
"Nitrogen cycle",
"Metabolism"
] |
903,686 | https://en.wikipedia.org/wiki/Teleparallelism | Teleparallelism (also called teleparallel gravity), was an attempt by Albert Einstein to base a unified theory of electromagnetism and gravity on the mathematical structure of distant parallelism, also referred to as absolute or teleparallelism. In this theory, a spacetime is characterized by a curvature-free linear co... | Teleparallelism | [
"Physics"
] | 2,157 | [
"Theoretical physics",
"Theories of gravity"
] |
904,056 | https://en.wikipedia.org/wiki/Electrical%20impedance%20tomography | Electrical impedance tomography (EIT) is a noninvasive type of medical imaging in which the electrical conductivity, permittivity, and impedance of a part of the body is inferred from surface electrode measurements and used to form a tomographic image of that part. Electrical conductivity varies considerably among vari... | Electrical impedance tomography | [
"Physics",
"Mathematics"
] | 6,072 | [
"Physical quantities",
"Applied mathematics",
"Inverse problems",
"Impedance measurements",
"Electrical resistance and conductance"
] |
905,140 | https://en.wikipedia.org/wiki/Riabouchinsky%20solid | In fluid mechanics a Riabouchinsky solid is a technique used for approximating boundary layer separation from a bluff body using potential flow. It is named after Dimitri Pavlovitch Riabouchinsky.
Riabouchinsky solids are typically used for analysing the behaviour of bodies moving through otherwise quiescent fluid (e... | Riabouchinsky solid | [
"Chemistry",
"Engineering"
] | 162 | [
"Piping",
"Chemical engineering",
"Fluid dynamics stubs",
"Fluid dynamics"
] |
905,278 | https://en.wikipedia.org/wiki/Nanotechnology%20education | Nanotechnology education involves a multidisciplinary natural science education with courses such as physics, chemistry, mathematics, and molecular biology. It is being offered by many universities around the world. The first program involving nanotechnology was offered by the University of Toronto's Engineering Scienc... | Nanotechnology education | [
"Materials_science",
"Engineering"
] | 6,236 | [
"Nanotechnology",
"Materials science"
] |
905,803 | https://en.wikipedia.org/wiki/Transparent%20ceramics | Many ceramic materials, both glassy and crystalline, have found use as optically transparent materials in various forms from bulk solid-state components to high surface area forms such as thin films, coatings, and fibers. Such devices have found widespread use for various applications in the electro-optical field incl... | Transparent ceramics | [
"Physics",
"Chemistry"
] | 8,365 | [
"Physical phenomena",
"Oxides",
"Salts",
"Optical phenomena",
"Materials",
"Transparent materials",
"Matter"
] |
906,193 | https://en.wikipedia.org/wiki/Native%20chemical%20ligation | Native Chemical Ligation (NCL) is an important extension of the chemical ligation concept for constructing a larger polypeptide chain by the covalent condensation of two or more unprotected peptides segments. Native chemical ligation is the most effective method for synthesizing native or modified proteins of typical... | Native chemical ligation | [
"Chemistry"
] | 1,618 | [
"Biomolecules by chemical classification",
"Peptides",
"Molecular biology"
] |
6,736,828 | https://en.wikipedia.org/wiki/Diaphragm%20valve | Diaphragm valves (or membrane valves) consists of a valve body with two or more ports, a flexible diaphragm, and a "weir or saddle" or seat upon which the diaphragm closes the valve. The valve body may be constructed from plastic, metal or other materials depending on the intended use.
Categories
There are two main c... | Diaphragm valve | [
"Physics",
"Chemistry"
] | 1,077 | [
"Physical systems",
"Valves",
"Hydraulics",
"Piping"
] |
2,814,939 | https://en.wikipedia.org/wiki/Solid%20oxygen | Solid oxygen forms at normal atmospheric pressure at a temperature below 54.36 K (−218.79 °C, −361.82 °F). Solid oxygen O2, like liquid oxygen, is a clear substance with a light sky-blue color caused by absorption in the red part of the visible light spectrum.
Oxygen molecules have attracted attention because of the r... | Solid oxygen | [
"Physics"
] | 705 | [
"Applied and interdisciplinary physics",
"Cryogenics"
] |
2,815,048 | https://en.wikipedia.org/wiki/Computational%20model | A computational model uses computer programs to simulate and study complex systems using an algorithmic or mechanistic approach and is widely used in a diverse range of fields spanning from physics, engineering, chemistry and biology to economics, psychology, cognitive science and computer science.
The system under st... | Computational model | [
"Mathematics"
] | 225 | [
"Applied mathematics",
"Mathematical modeling"
] |
2,815,477 | https://en.wikipedia.org/wiki/Prostate%20biopsy | Prostate biopsy is a procedure in which small hollow needle-core samples are removed from a man's prostate gland to be examined for the presence of prostate cancer. It is typically performed when the result from a PSA blood test is high. It may also be considered advisable after a digital rectal exam (DRE) finds possib... | Prostate biopsy | [
"Chemistry"
] | 1,498 | [
"Histopathology",
"Microscopy"
] |
2,816,523 | https://en.wikipedia.org/wiki/Canadian%20Nuclear%20Safety%20Commission | The Canadian Nuclear Safety Commission (CNSC; ) is the federal regulator of nuclear power and materials in Canada.
Mandate and history
Canadian Nuclear Safety Commission was established under the 1997 Nuclear Safety and Control Act with a mandate to regulate nuclear energy, nuclear substances, and relevant equipment i... | Canadian Nuclear Safety Commission | [
"Engineering"
] | 379 | [
"Nuclear regulatory organizations",
"Nuclear organizations"
] |
2,816,674 | https://en.wikipedia.org/wiki/Component-based%20software%20engineering | Component-based software engineering (CBSE), also called component-based development (CBD), is a style of software engineering that aims to construct a software system from components that are loosely-coupled and reusable. This emphasizes the separation of concerns among components.
To find the right level of componen... | Component-based software engineering | [
"Technology",
"Engineering"
] | 208 | [
"Systems engineering",
"Computer engineering",
"Software engineering",
"Component-based software engineering",
"Information technology",
"Components"
] |
2,816,874 | https://en.wikipedia.org/wiki/Agrophysics | Agrophysics is a branch of science bordering on agronomy and physics,
whose objects of study are the agroecosystem - the biological objects, biotope and biocoenosis affected by human activity, studied and described using the methods of physical sciences. Using the achievements of the exact sciences to solve major prob... | Agrophysics | [
"Physics"
] | 1,166 | [
"Applied and interdisciplinary physics"
] |
2,817,088 | https://en.wikipedia.org/wiki/Glucose%20transporter | Glucose transporters are a wide group of membrane proteins that facilitate the transport of glucose across the plasma membrane, a process known as facilitated diffusion. Because glucose is a vital source of energy for all life, these transporters are present in all phyla. The GLUT or SLC2A family are a protein family t... | Glucose transporter | [
"Chemistry"
] | 949 | [
"Carbohydrate metabolism",
"Carbohydrate chemistry",
"Metabolism"
] |
2,817,855 | https://en.wikipedia.org/wiki/Larmor%20formula | In electrodynamics, the Larmor formula is used to calculate the total power radiated by a nonrelativistic point charge as it accelerates. It was first derived by J. J. Larmor in 1897, in the context of the wave theory of light.
When any charged particle (such as an electron, a proton, or an ion) accelerates, energy is... | Larmor formula | [
"Physics",
"Chemistry",
"Mathematics"
] | 1,503 | [
"Physical phenomena",
"Electromagnetism",
"Electrodynamics",
"Equations of physics",
"Dynamical systems",
"Electromagnetic radiation",
"Eponymous equations of physics",
"Quantum mechanics",
"Radiation",
"Atomic physics",
"Fundamental interactions",
" molecular",
"Atomic",
" and optical phy... |
2,818,161 | https://en.wikipedia.org/wiki/Hydraulic%20action | Hydraulic action, most generally, is the ability of moving water (flowing or waves) to dislodge and transport rock particles. This includes a number of specific erosional processes, including abrasion, at facilitated erosion, such as static erosion where water leaches salts and floats off organic material from unconsol... | Hydraulic action | [
"Chemistry",
"Engineering",
"Environmental_science"
] | 616 | [
"Hydrology",
"Environmental engineering"
] |
2,819,556 | https://en.wikipedia.org/wiki/Ehrenfest%20paradox | The Ehrenfest paradox concerns the rotation of a "rigid" disc in the theory of relativity.
In its original 1909 formulation as presented by Paul Ehrenfest in relation to the concept of Born rigidity within special relativity, it discusses an ideally rigid cylinder that is made to rotate about its axis of symmetry. The... | Ehrenfest paradox | [
"Physics"
] | 3,010 | [
"Theory of relativity"
] |
2,819,718 | https://en.wikipedia.org/wiki/Orders%20of%20magnitude%20%28frequency%29 | The following list illustrates various frequencies, measured in hertz, according to decade in the order of their magnitudes, with the negative decades illustrated by events and positive decades by acoustic or electromagnetic uses.
See also
Hertz
Orders of magnitude (rotational speed)
References
Frequency
Temporal ra... | Orders of magnitude (frequency) | [
"Physics",
"Mathematics"
] | 56 | [
"Temporal quantities",
"Physical quantities",
"Quantity",
"Temporal rates",
"Orders of magnitude",
"Units of measurement"
] |
2,820,493 | https://en.wikipedia.org/wiki/Flexibility%20method | In structural engineering, the flexibility method, also called the method of consistent deformations, is the traditional method for computing member forces and displacements in structural systems. Its modern version formulated in terms of the members' flexibility matrices also has the name the matrix force method due t... | Flexibility method | [
"Engineering"
] | 1,249 | [
"Structural engineering",
"Structural analysis",
"Mechanical engineering",
"Aerospace engineering"
] |
2,820,509 | https://en.wikipedia.org/wiki/Electrocoagulation | Electrocoagulation (EC) is a technique used for wastewater treatment, wash water treatment, industrially processed water, and medical treatment. Electrocoagulation has become a rapidly growing area of wastewater treatment due to its ability to remove contaminants that are generally more difficult to remove by filtratio... | Electrocoagulation | [
"Chemistry",
"Engineering"
] | 3,186 | [
"Chemical engineering",
"Civil engineering",
"Environmental engineering"
] |
3,783,853 | https://en.wikipedia.org/wiki/Bond%20graph | A bond graph is a graphical representation of a physical dynamic system. It allows the conversion of the system into a state-space representation. It is similar to a block diagram or signal-flow graph, with the major difference that the arcs in bond graphs represent bi-directional exchange of physical energy, while tho... | Bond graph | [
"Physics",
"Engineering"
] | 5,719 | [
"Electrical engineering",
"Applied and interdisciplinary physics",
"Mechanical engineering"
] |
1,388,228 | https://en.wikipedia.org/wiki/Electromagnetic%20forming | Electromagnetic forming (EM forming or magneforming) is a type of high-velocity, cold forming process for electrically conductive metals, most commonly copper and aluminium. The workpiece is reshaped by high-intensity pulsed magnetic fields that induce a current in the workpiece and a corresponding repulsive magnetic f... | Electromagnetic forming | [
"Physics"
] | 767 | [
"Physical phenomena",
"Physical quantities",
"Electromagnetic radiation",
"Power (physics)",
"Radiation",
"Pulsed power"
] |
1,389,284 | https://en.wikipedia.org/wiki/HX-63 | The HX-63 was an advanced rotor machine designed by Crypto AG founder Boris Hagelin. Development of the device started in 1952 and lasted a decade. The machine had nine rotors, each with 41 contacts. There were 26 keyboard inputs and outputs, leaving 15 wires to "loop back" through the rotors via a different path. More... | HX-63 | [
"Physics",
"Technology"
] | 354 | [
"Physical systems",
"Machines",
"Rotor machines"
] |
1,389,316 | https://en.wikipedia.org/wiki/Gas%20in%20a%20box | In quantum mechanics, the results of the quantum particle in a box can be used to look at the equilibrium situation for a quantum ideal gas in a box which is a box containing a large number of molecules which do not interact with each other except for instantaneous thermalizing collisions. This simple model can be used... | Gas in a box | [
"Physics"
] | 1,860 | [
"Statistical mechanics"
] |
1,389,320 | https://en.wikipedia.org/wiki/Gas%20in%20a%20harmonic%20trap | The results of the quantum harmonic oscillator can be used to look at the equilibrium situation for a quantum ideal gas in a harmonic trap, which is a harmonic potential containing a large number of particles that do not interact with each other except for instantaneous thermalizing collisions. This situation is of gre... | Gas in a harmonic trap | [
"Physics"
] | 1,090 | [
"Statistical mechanics"
] |
1,390,283 | https://en.wikipedia.org/wiki/Diffuse%20interstellar%20bands | Diffuse interstellar bands (DIBs) are absorption features seen in the spectra of astronomical objects in the Milky Way and other galaxies. They are caused by the absorption of light by the interstellar medium. Circa 500 bands have now been seen, in ultraviolet, visible and infrared wavelengths.
The origin of most DIB... | Diffuse interstellar bands | [
"Physics",
"Chemistry",
"Astronomy"
] | 1,423 | [
"Unsolved problems in astronomy",
"Interstellar media",
"Spectrum (physical sciences)",
"Outer space",
"Concepts in astronomy",
"Astrophysics",
"Astrochemistry",
"Astronomical controversies",
"Astronomical spectroscopy",
"nan",
"Spectroscopy",
"Astronomical sub-disciplines"
] |
1,390,873 | https://en.wikipedia.org/wiki/Reflection%20symmetry | In mathematics, reflection symmetry, line symmetry, mirror symmetry, or mirror-image symmetry is symmetry with respect to a reflection. That is, a figure which does not change upon undergoing a reflection has reflectional symmetry.
In 2-dimensional space, there is a line/axis of symmetry, in 3-dimensional space, there... | Reflection symmetry | [
"Physics",
"Mathematics"
] | 717 | [
"Functions and mappings",
"Euclidean symmetries",
"Mathematical objects",
"Elementary mathematics",
"Elementary geometry",
"Mathematical relations",
"Symmetry"
] |
1,390,921 | https://en.wikipedia.org/wiki/Single%20bond | In chemistry, a single bond is a chemical bond between two atoms involving two valence electrons. That is, the atoms share one pair of electrons where the bond forms. Therefore, a single bond is a type of covalent bond. When shared, each of the two electrons involved is no longer in the sole possession of the orbital i... | Single bond | [
"Physics",
"Chemistry",
"Materials_science"
] | 710 | [
"Chemical bonding",
"Condensed matter physics",
"nan"
] |
1,391,009 | https://en.wikipedia.org/wiki/Plasma%20stealth | Plasma stealth is a proposed process to use ionized gas (plasma) to reduce the radar cross-section (RCS) of an aircraft. Interactions between electromagnetic radiation and ionized gas have been extensively studied for many purposes, including concealing aircraft from radar as stealth technology. Various methods might p... | Plasma stealth | [
"Physics"
] | 2,999 | [
"Plasma technology and applications",
"Plasma physics"
] |
1,391,752 | https://en.wikipedia.org/wiki/Overall%20length | The overall length (OAL) of an ammunition cartridge is a measurement from the base of the brass shell casing to the tip of the bullet, seated into the brass casing. Cartridge overall length, or "COL", is important to safe functioning of reloads in firearms.
Handloaded cartridges and commercially available cartridges f... | Overall length | [
"Physics"
] | 399 | [
"Applied and interdisciplinary physics",
"Ballistics"
] |
25,717,385 | https://en.wikipedia.org/wiki/Constrained-layer%20damping | Constrained-layer damping is a mechanical engineering technique to suppress vibrations. Typically a viscoelastic or other damping material, is sandwiched between two sheets of stiff materials that lack sufficient damping by themselves. The result is that any vibration generated on either side of the constraining materi... | Constrained-layer damping | [
"Physics",
"Engineering"
] | 104 | [
"Applied and interdisciplinary physics",
"Mechanical engineering"
] |
25,723,035 | https://en.wikipedia.org/wiki/Yang%E2%80%93Mills%E2%80%93Higgs%20equations | In mathematics, the Yang–Mills–Higgs equations are a set of non-linear partial differential equations for a Yang–Mills field, given by a connection, and a Higgs field, given by a section of a vector bundle (specifically, the adjoint bundle). These equations are
with a boundary condition
where
A is a connection on a... | Yang–Mills–Higgs equations | [
"Physics"
] | 480 | [
"Quantum field theory",
"Quantum mechanics"
] |
30,329,560 | https://en.wikipedia.org/wiki/Berry%20connection%20and%20curvature | In physics, Berry connection and Berry curvature are related concepts which can be viewed, respectively, as a local gauge potential and gauge field associated with the Berry phase or geometric phase. The concept was first introduced by S. Pancharatnam as geometric phase and later elaborately explained and popularized b... | Berry connection and curvature | [
"Physics",
"Chemistry",
"Materials_science"
] | 1,482 | [
"Quantum phases",
"Phases of matter",
"Classical mechanics",
"Quantum mechanics",
"Mechanics",
"Condensed matter physics",
"Matter"
] |
30,335,048 | https://en.wikipedia.org/wiki/Bunch%E2%80%93Davies%20vacuum | In quantum field theory in curved spacetime, there is a whole class of quantum states over a background de Sitter space which are invariant under all the isometries: the alpha-vacua. Among them there is a particular one whose associated Green functions verify a condition (Hadamard condition) consisting to behave on the... | Bunch–Davies vacuum | [
"Physics"
] | 281 | [
"Quantum field theory",
"Quantum mechanics",
"Relativity stubs",
"Theory of relativity"
] |
30,337,848 | https://en.wikipedia.org/wiki/Harmonic%20pitch%20class%20profiles | Harmonic pitch class profiles (HPCP) is a group of features that a computer program extracts from an audio signal, based on a pitch class profile—a descriptor proposed in the context of a chord recognition system. HPCP are an enhanced pitch distribution feature that are sequences of feature vectors that, to a certain e... | Harmonic pitch class profiles | [
"Physics"
] | 825 | [
"Frequency-domain analysis",
"Spectrum (physical sciences)",
"Time–frequency analysis"
] |
5,123,821 | https://en.wikipedia.org/wiki/Day-night%20average%20sound%20level | The day-night average sound level (Ldn or DNL) is the average noise level over a 24-hour period. The noise level measurements between the hours of 22:00 and 07:00 are artificially increased by 10 dB before averaging. This noise is weighted to take into account the decrease in community background noise of 10 dB during ... | Day-night average sound level | [
"Physics",
"Mathematics"
] | 284 | [
"Quantity",
"Sound measurements",
"Physical quantities"
] |
5,124,085 | https://en.wikipedia.org/wiki/Drill%20floor | The drill floor is the heart of any drilling rig. This is the area where the drill string begins its trip into the earth. It is traditionally where joints of pipe are assembled, as well as the BHA (bottom hole assembly), drilling bit, and various other tools. This is the primary work location for roughnecks and the dri... | Drill floor | [
"Chemistry",
"Engineering"
] | 266 | [
"Oil platforms",
"Structural engineering",
"Mining equipment",
"Petroleum stubs",
"Petroleum technology",
"Petroleum",
"Natural gas technology"
] |
5,124,994 | https://en.wikipedia.org/wiki/Spherical%20model | The spherical model is a model of ferromagnetism similar to the Ising model, which was solved in 1952 by T. H. Berlin and M. Kac. It has the remarkable property that for linear dimension d greater than four, the critical exponents that govern the behaviour of the system near the critical point are independent of d and ... | Spherical model | [
"Physics",
"Materials_science"
] | 573 | [
"Statistical mechanics",
"Condensed matter physics",
"Lattice models",
"Computational physics"
] |
5,126,046 | https://en.wikipedia.org/wiki/Hereditarily%20countable%20set | In set theory, a set is called hereditarily countable if it is a countable set of hereditarily countable sets.
Results
The inductive definition above is well-founded and can be expressed in the language of first-order set theory.
Equivalent properties
A set is hereditarily countable if and only if it is countable, an... | Hereditarily countable set | [
"Mathematics"
] | 105 | [
"Set theory",
"Mathematical logic",
"Mathematical objects",
"Infinity",
"Large cardinals"
] |
5,126,167 | https://en.wikipedia.org/wiki/Berry%20mechanism | The Berry mechanism, or Berry pseudorotation mechanism, is a type of vibration causing molecules of certain geometries to isomerize by exchanging the two axial ligands (see the figure) for two of the equatorial ones. It is the most widely accepted mechanism for pseudorotation and most commonly occurs in trigonal bipyra... | Berry mechanism | [
"Physics",
"Chemistry"
] | 503 | [
"Chemical reaction engineering",
"Molecular geometry",
"Molecules",
"Stereochemistry",
"Chemical kinetics",
"Matter"
] |
5,126,231 | https://en.wikipedia.org/wiki/Pseudorotation | In chemistry, a pseudorotation is a set of intramolecular movements of attached groups (i.e., ligands) on a highly symmetric molecule, leading to a molecule indistinguishable from the initial one. The International Union of Pure and Applied Chemistry (IUPAC) defines a pseudorotation as a "stereoisomerization resulting ... | Pseudorotation | [
"Physics",
"Chemistry",
"Materials_science"
] | 350 | [
"Stereochemistry",
"Space",
"Condensed matter physics",
"Stereochemistry stubs",
"nan",
"Spacetime",
"Chemical bonding"
] |
5,129,473 | https://en.wikipedia.org/wiki/Core%20electron | Core electrons are the electrons in an atom that are not valence electrons and do not participate directly in chemical bonding. The nucleus and the core electrons of an atom form the atomic core. Core electrons are tightly bound to the nucleus. Therefore, unlike valence electrons, core electrons play a secondary role i... | Core electron | [
"Physics",
"Chemistry"
] | 1,563 | [
"Quantum chemistry",
"Quantum mechanics",
"Theoretical chemistry",
"Atomic physics",
" molecular",
"Atomic",
" and optical physics"
] |
27,585,573 | https://en.wikipedia.org/wiki/Uncertainty%20exponent | In mathematics, the uncertainty exponent is a method of measuring the fractal dimension of a basin boundary. In a chaotic scattering system, the
invariant set of the system is usually not directly accessible because it is non-attracting and typically of measure zero. Therefore, the only way to infer the presence of ... | Uncertainty exponent | [
"Mathematics"
] | 310 | [
"Mathematical analysis",
"Functions and mappings",
"Mathematical analysis stubs",
"Mathematical objects",
"Fractals",
"Mathematical relations"
] |
27,585,945 | https://en.wikipedia.org/wiki/Trajectory%20%28fluid%20mechanics%29 | In fluid mechanics, meteorology (weather) and oceanography, a trajectory traces the motion of a single point, often called a parcel, in the flow.
Trajectories are useful for tracking atmospheric contaminants, such as smoke plumes, and as constituents to Lagrangian simulations, such as contour advection or semi-Lagran... | Trajectory (fluid mechanics) | [
"Physics",
"Chemistry",
"Mathematics",
"Engineering"
] | 524 | [
"Continuum mechanics",
"Chemical engineering",
"Computational mathematics",
"Classical mechanics",
"Mathematical relations",
"Numerical analysis",
"Piping",
"Approximations",
"Fluid dynamics"
] |
27,586,152 | https://en.wikipedia.org/wiki/Isoline%20retrieval | Isoline retrieval is a remote sensing inverse method that retrieves one or more isolines of a trace atmospheric constituent or variable. When used to validate another contour, it is the most accurate method possible for the task. When used to retrieve a whole field, it is a general, nonlinear inverse method and a robu... | Isoline retrieval | [
"Mathematics"
] | 1,226 | [
"Inverse problems",
"Applied mathematics"
] |
20,288,037 | https://en.wikipedia.org/wiki/Diagnostic%20electron%20microscopy | The transmission electron microscope (TEM) is used as an important diagnostic tool to screen human tissues at high magnification and at high resolution (the ultrastructural level), often in conjunction with other methods, particularly light microscopy and immunofluorescence techniques. The TEM was first used extensivel... | Diagnostic electron microscopy | [
"Chemistry"
] | 423 | [
"Microscopy"
] |
20,295,286 | https://en.wikipedia.org/wiki/Gyrovector%20space | A gyrovector space is a mathematical concept proposed by Abraham A. Ungar for studying hyperbolic geometry in analogy to the way vector spaces are used in Euclidean geometry. Ungar introduced the concept of gyrovectors that have addition based on gyrogroups instead of vectors which have addition based on groups. Un... | Gyrovector space | [
"Physics",
"Mathematics"
] | 3,623 | [
"Non-associative algebra",
"Mathematical structures",
"Theoretical physics",
"Quantum mechanics",
"Special relativity",
"Algebraic structures",
"Theory of relativity"
] |
31,443,350 | https://en.wikipedia.org/wiki/Optical%20depth%20%28astrophysics%29 | Optical depth in astrophysics refers to a specific level of transparency. Optical depth and actual depth, and respectively, can vary widely depending on the absorptivity of the astrophysical environment. Indeed, is able to show the relationship between these two quantities and can lead to a greater understanding of ... | Optical depth (astrophysics) | [
"Physics",
"Chemistry",
"Astronomy"
] | 591 | [
"Astronomical sub-disciplines",
"Scattering",
" absorption and radiative transfer (optics)",
"Astrophysics"
] |
35,618,022 | https://en.wikipedia.org/wiki/One-way%20travel | One-way travel or one way is a travel paid by a fare purchased for a trip on an aircraft, a train, a bus, or some other mode of travel without a return trip. One-way tickets may be purchased for a variety of reasons, such as if one is planning to permanently relocate to the destination, is uncertain of one's return pla... | One-way travel | [
"Physics"
] | 289 | [
"Physical systems",
"Transport",
"Transport stubs"
] |
35,620,010 | https://en.wikipedia.org/wiki/Vector%20radiative%20transfer | In spectroscopy and radiometry, vector radiative transfer (VRT) is a method of modelling the propagation of polarized electromagnetic radiation in low density media. In contrast to scalar radiative transfer (RT), which models only the first Stokes component, the intensity, VRT models all four components through vector... | Vector radiative transfer | [
"Physics",
"Chemistry",
"Engineering"
] | 386 | [
"Physical phenomena",
"Telecommunications engineering",
"Molecular physics",
"Spectrum (physical sciences)",
"Electromagnetic radiation",
"Instrumental analysis",
"Radiation",
"Spectroscopy",
"Radiometry"
] |
35,623,859 | https://en.wikipedia.org/wiki/Chapman%E2%80%93Kolmogorov%20equation | In mathematics, specifically in the theory of Markovian stochastic processes in probability theory, the Chapman–Kolmogorov equation (CKE) is an identity relating the joint probability distributions of different sets of coordinates on a stochastic process. The equation was derived independently by both the British mat... | Chapman–Kolmogorov equation | [
"Mathematics"
] | 686 | [
"Mathematical objects",
"Equations"
] |
24,313,526 | https://en.wikipedia.org/wiki/Hirox | Hirox (ハイロックス) is a lens company in Tokyo, Japan that created the first digital microscope in 1985. This company is now known as Hirox Co Ltd. Hirox's main industry is digital microscopes, but still makes the lenses for a variety of items including rangefinders.
Hirox's newest digital microscope systems are currently... | Hirox | [
"Chemistry",
"Technology",
"Engineering"
] | 942 | [
"Microscopes",
"Measuring instruments",
"Microscopy"
] |
24,314,125 | https://en.wikipedia.org/wiki/Romidepsin | Romidepsin, sold under the brand name Istodax, is an anticancer agent used in cutaneous T-cell lymphoma (CTCL) and other peripheral T-cell lymphomas (PTCLs). Romidepsin is a natural product obtained from the bacterium Chromobacterium violaceum, and works by blocking enzymes known as histone deacetylases, thus inducing ... | Romidepsin | [
"Chemistry"
] | 1,277 | [
"Chemicals in medicine",
"Prodrugs"
] |
24,315,207 | https://en.wikipedia.org/wiki/Ground%20glass%20hepatocyte | In liver pathology, a ground glass hepatocyte, abbreviated GGH, is a liver parenchymal cell with a flat hazy and uniformly dull appearing cytoplasm on light microscopy. The cytoplasm's granular homogeneous eosinophilic staining is caused by the presence of HBsAg.
The appearance is classically associated with abundant ... | Ground glass hepatocyte | [
"Chemistry"
] | 280 | [
"Histopathology",
"Microscopy"
] |
24,318,403 | https://en.wikipedia.org/wiki/Two-electron%20atom | In atomic physics, a two-electron atom or helium-like ion is a quantum mechanical system consisting of one nucleus with a charge of Ze and just two electrons. This is the first case of many-electron systems where the Pauli exclusion principle plays a central role.
It is an example of a three-body problem.
The first f... | Two-electron atom | [
"Physics"
] | 452 | [
"Quantum models",
"Atoms",
"Quantum mechanics",
"Matter"
] |
24,318,538 | https://en.wikipedia.org/wiki/C21H24O10 | {{DISPLAYTITLE:C21H24O10}}
The molecular formula C21H24O10 (molar mass: 436.41 g/mol, exact mass: 436.136947 u) may refer to:
Nothofagin, a C-linked phloretin glucoside
Phlorizin, an O-linked phloretin glucoside
Molecular formulas | C21H24O10 | [
"Physics",
"Chemistry"
] | 88 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,319,449 | https://en.wikipedia.org/wiki/C23H27NO9 | {{DISPLAYTITLE:C23H27NO9}}
The molecular formula C23H27NO9 (molar mass: 461.46 g/mol) may refer to:
Morphine-3-glucuronide
morphine-6-glucuronide
Molecular formulas | C23H27NO9 | [
"Physics",
"Chemistry"
] | 65 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,319,673 | https://en.wikipedia.org/wiki/C11H16N4O4 | {{DISPLAYTITLE:C11H16N4O4}}
The molecular formula C11H16N4O4 (molar mass: 268.27 g/mol, exact mass: 268.1172 u) may refer to:
Acetylcarnosine (NAC)
Dexrazoxane
Pentostatin
Molecular formulas | C11H16N4O4 | [
"Physics",
"Chemistry"
] | 75 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,319,775 | https://en.wikipedia.org/wiki/C9H11FN2O5 | {{DISPLAYTITLE:C9H11FN2O5}}
The molecular formula C9H11FN2O5 may refer to:
Doxifluridine, a second generation nucleoside analog
Floxuridine, an antimetabolite oncology drug
Molecular formulas | C9H11FN2O5 | [
"Physics",
"Chemistry"
] | 65 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,320,320 | https://en.wikipedia.org/wiki/C6H11NO3 | {{DISPLAYTITLE: C6H11NO3}}
The molecular formula C6H11NO3 (molar mass: 145.16 g/mol, exact mass: 145.0739 u) may refer to:
N-Acetyl-γ-aminobutyric acid
Allysine
Methyl aminolevulinate (MAL)
Molecular formulas | C6H11NO3 | [
"Physics",
"Chemistry"
] | 77 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
24,320,384 | https://en.wikipedia.org/wiki/Bat%20bridge | A bat bridge is a structure of varying construction crossing a new or altered road to aid the navigation of bats following the destruction of a hedgerow, and to cause the bats to cross the roadway at a sufficient height to avoid traffic. Bats are thought to follow the lines of hedgerows and woods, and removing these ma... | Bat bridge | [
"Engineering"
] | 435 | [
"Structural engineering",
"Bridges"
] |
24,321,121 | https://en.wikipedia.org/wiki/Geopiety | Geopiety is "the belief and worship of powers behind nature or the human environment". It was coined by the American geographer John Kirtland Wright for geographical piety.
The term "geopiety" comes from a combination of the Greek root geo, for earth, and the Latin root "pietas". As Wright explained when coining the t... | Geopiety | [
"Environmental_science"
] | 136 | [
"Environmental social science stubs",
"Environmental social science",
"Human geography"
] |
24,321,593 | https://en.wikipedia.org/wiki/RTI-352 | RTI-352 is a phenyltropane that is used as a radiolabeling ligand for the DAT.
RTI-352 is a geometric isomer of RTI-55 (β-CIT).
Based on X-ray crystallography, this compound is in a tautomeric equilibrium residing mostly on the side of the boat-shaped conformer.
References
Tropanes
RTI compounds
4-Iodophenyl compou... | RTI-352 | [
"Chemistry"
] | 98 | [] |
24,322,531 | https://en.wikipedia.org/wiki/MIS%20capacitor | A MIS capacitor is a capacitor formed from a layer of metal, a layer of insulating material and a layer of semiconductor material. It gets its name from the initials of the metal-insulator-semiconductor (MIS) structure. As with the MOS field-effect transistor structure, for historical reasons, this layer is also often ... | MIS capacitor | [
"Physics"
] | 466 | [
"Capacitance",
"Capacitors",
"Physical quantities"
] |
32,944,014 | https://en.wikipedia.org/wiki/Glutamine%20amidotransferase | In molecular biology, glutamine amidotransferases (GATase) are enzymes which catalyse the removal of the ammonia group from a glutamine molecule and its subsequent transfer to a specific substrate, thus creating a new carbon-nitrogen group on the substrate. This activity is found in a range of biosynthetic enzymes, inc... | Glutamine amidotransferase | [
"Biology"
] | 352 | [
"Protein domains",
"Protein classification"
] |
32,945,359 | https://en.wikipedia.org/wiki/Wong%E2%80%93Sandler%20mixing%20rule | The Wong–Sandler mixing rule is a thermodynamic mixing rule used for vapor–liquid equilibrium and liquid-liquid equilibrium calculations.
Summary
The first boundary condition is
which constrains the sum of a and b. The second equation is
with the notable limit as (and ) of
The mixing rules become
The cross ter... | Wong–Sandler mixing rule | [
"Physics",
"Chemistry",
"Mathematics",
"Engineering"
] | 102 | [
"Thermodynamics stubs",
"Engineering thermodynamics",
"Equilibrium chemistry",
"Thermodynamics",
"Mechanical engineering",
"Physical chemistry stubs",
"Dynamical systems"
] |
34,427,543 | https://en.wikipedia.org/wiki/Polarization%20mixing | In optics, polarization mixing refers to changes in the relative strengths of the Stokes parameters caused by reflection or scattering—see vector radiative transfer—or by changes in the radial orientation of the detector.
Example: A sloping, specular surface
The definition of the four Stokes components
are, in a fixe... | Polarization mixing | [
"Physics",
"Engineering"
] | 963 | [
"Telecommunications engineering",
"Polarization (waves)",
"Astrophysics",
"Radiometry"
] |
34,429,007 | https://en.wikipedia.org/wiki/Edmond%20Perrier | Jean Octave Edmond Perrier (9 May 1844 – 31 July 1921) was a French zoologist born in Tulle. He is known for his studies of invertebrates (annelids and echinoderms). He was the brother of zoologist Rémy Perrier (1861–1936).
Career
On advice from Louis Pasteur, he studied sciences at the , where he took classes in zool... | Edmond Perrier | [
"Biology"
] | 676 | [
"Non-Darwinian evolution",
"Biology theories",
"Obsolete biology theories",
"Lamarckism"
] |
34,431,232 | https://en.wikipedia.org/wiki/International%20Cannabinoid%20Research%20Society | The International Cannabinoid Research Society (ICRS) is a professional society for scientific research in all fields of the cannabinoids, based in North Carolina, US. ICRS is one of the very few global non-profit medical societies or associations related to cannabis and cannabinoids.
History
The ICRS was formally inc... | International Cannabinoid Research Society | [
"Chemistry",
"Environmental_science"
] | 466 | [
"Pharmacology",
"Pharmacological societies",
"Toxicology",
"Toxicology organizations"
] |
22,792,377 | https://en.wikipedia.org/wiki/Mole%20map%20%28chemistry%29 | In chemistry, a mole map is a graphical representation of an algorithm that compares molar mass, number of particles per mole, and factors from balanced equations or other formulae. They are often used in undergraduate-level chemistry courses as a tool to teach the basics of stoichiometry and unit conversion.
Stoichio... | Mole map (chemistry) | [
"Chemistry",
"Mathematics"
] | 72 | [
"Stoichiometry",
"Chemical reaction engineering",
"Quantity",
"Chemical quantities",
"nan"
] |
22,792,600 | https://en.wikipedia.org/wiki/Energid%20Technologies | Energid Technologies is an engineering firm providing robotics, machine vision, and remote control software with the core product referred to as Actin. Its headquarters are in Bedford, Massachusetts. It has regional presence in Bedford, Massachusetts, New York, New York; Pittsburgh, Pennsylvania; Tucson, Arizona; Aust... | Energid Technologies | [
"Biology"
] | 266 | [
"Medical robotics",
"Medical technology"
] |
22,795,102 | https://en.wikipedia.org/wiki/Rees%20factor%20semigroup | In mathematics, in semigroup theory, a Rees factor semigroup (also called Rees quotient semigroup or just Rees factor), named after David Rees, is a certain semigroup constructed using a semigroup and an ideal of the semigroup.
Let S be a semigroup and I be an ideal of S. Using S and I one can construct a new semigrou... | Rees factor semigroup | [
"Mathematics"
] | 581 | [
"Semigroup theory",
"Fields of abstract algebra",
"Mathematical structures",
"Algebraic structures"
] |
22,798,149 | https://en.wikipedia.org/wiki/Translational%20Centre%20for%20Regenerative%20Medicine | The Translational Centre for Regenerative Medicine (TRM) ws a central scientific institution of the University of Leipzig. It focussed on the development of diagnostic and therapeutic concepts in the field of regenerative medicine and their implementation into a clinical setting.
The TRM Leipzig was established in Oct... | Translational Centre for Regenerative Medicine | [
"Biology"
] | 485 | [
"Translational medicine"
] |
6,740,565 | https://en.wikipedia.org/wiki/Helly%27s%20selection%20theorem | In mathematics, Helly's selection theorem (also called the Helly selection principle) states that a uniformly bounded sequence of monotone real functions admits a convergent subsequence.
In other words, it is a sequential compactness theorem for the space of uniformly bounded monotone functions.
It is named for the Aus... | Helly's selection theorem | [
"Mathematics"
] | 1,242 | [
"Compactness theorems",
"Theorems in mathematical analysis",
"Mathematical analysis",
"Theorems in topology",
"Mathematical problems",
"Mathematical theorems"
] |
6,745,332 | https://en.wikipedia.org/wiki/Max%20Planck%20Institute%20for%20Polymer%20Research | The Max Planck Institute for Polymer Research () is a scientific center in the field of polymer science located in Mainz, Germany. The institute was founded in 1983 by Erhard W. Fischer and Gerhard Wegner. Belonging to the Chemistry, Physics and Technology Section, it is one of over 80 institutes in the Max Planck Soci... | Max Planck Institute for Polymer Research | [
"Chemistry",
"Materials_science"
] | 477 | [
"Materials science organizations",
"Chemical research institutes",
"Chemistry organization stubs",
"Materials science institutes"
] |
6,746,775 | https://en.wikipedia.org/wiki/Compact%20embedding | In mathematics, the notion of being compactly embedded expresses the idea that one set or space is "well contained" inside another. There are versions of this concept appropriate to general topology and functional analysis.
Definition (topological spaces)
Let (X, T) be a topological space, and let V and W be subsets ... | Compact embedding | [
"Mathematics"
] | 401 | [
"General topology",
"Functions and mappings",
"Functional analysis",
"Mathematical objects",
"Topology",
"Mathematical relations"
] |
6,746,813 | https://en.wikipedia.org/wiki/Spinhenge%40Home | Spinhenge@home was a volunteer computing project on the BOINC platform, which performs extensive numerical simulations concerning the physical characteristics of magnetic molecules. It is a project of the Bielefeld University of Applied Sciences, Department of Electrical Engineering and Computer Science, in cooperation... | Spinhenge@Home | [
"Physics"
] | 184 | [
"Quantum mechanics",
"Quantum physics stubs"
] |
6,747,488 | https://en.wikipedia.org/wiki/Binding%20constant | The binding constant, or affinity constant/association constant, is a special case of the equilibrium constant K, and is the inverse of the dissociation constant. It is associated with the binding and unbinding reaction of receptor (R) and ligand (L) molecules, which is formalized as:
R + L RL
The reaction is charac... | Binding constant | [
"Chemistry"
] | 334 | [
"Equilibrium chemistry",
"Analytical chemistry stubs"
] |
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