id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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|---|---|---|---|---|---|
52,780,566 | https://en.wikipedia.org/wiki/Tuniu | Tuniu Corporation () is a Chinese online travel agency. Products and services include packaged tours, accommodation reservation, airline and railway ticketing, car rentals, and corporate travel. The company listed on the Nasdaq Stock Exchange on May 9, 2014. The company headquarters are located in Nanjing with offices ... | Tuniu | Technology | 605 |
3,132,697 | https://en.wikipedia.org/wiki/Mordell%20curve | In algebra, a Mordell curve is an elliptic curve of the form y2 = x3 + n, where n is a fixed non-zero integer.
These curves were closely studied by Louis Mordell, from the point of view of determining their integer points. He showed that every Mordell curve contains only finitely many integer points (x, y). In other w... | Mordell curve | Mathematics | 499 |
77,770,500 | https://en.wikipedia.org/wiki/Dioxethedrin | Dioxethedrin (), or dioxethedrine, also known as 3,4-dihydroxy-N-ethylnorephedrine, is a sympathomimetic medication. It was a component of the antitussive syrup Bexol (a combination of dioxethedrin, codeine, and promethazine). It is an ephedrine derivative (and hence is a phenethylamine and amphetamine) and is describe... | Dioxethedrin | Chemistry | 239 |
78,086,043 | https://en.wikipedia.org/wiki/SB269652 | SB269652 is an experimental dopamine D2 and D3 receptor negative allosteric modulator. It is of interest in the potential development of novel antipsychotics for treatment of schizophrenia with reduced side effects, such as extrapyramidal symptoms. The drug is described as a dual orthosteric and allosteric (i.e., bitop... | SB269652 | Chemistry | 262 |
2,928,212 | https://en.wikipedia.org/wiki/Bauschinger%20effect | The Bauschinger effect refers to a property of materials where the material's stress/strain characteristics change as a result of the microscopic stress distribution of the material. For example, an increase in tensile yield strength occurs at the expense of compressive yield strength. The effect is named after German... | Bauschinger effect | Physics,Materials_science,Engineering | 2,467 |
1,043,247 | https://en.wikipedia.org/wiki/Rhyolite%2C%20Nevada | Rhyolite is a ghost town in Nye County, in the U.S. state of Nevada. It is in the Bullfrog Hills, about northwest of Las Vegas, near the eastern boundary of Death Valley National Park.
The town began in early 1905 as one of several mining camps that sprang up after a prospecting discovery in the surrounding hills. D... | Rhyolite, Nevada | Engineering | 4,324 |
13,567,584 | https://en.wikipedia.org/wiki/Energy%20efficient%20transformer | In a typical power distribution grid, electric transformer power loss typically contributes to about 40-50% of the total transmission and distribution loss. Energy efficient transformers are therefore an important means to reduce transmission and distribution loss. With the improvement of electrical steel (silicon stee... | Energy efficient transformer | Technology,Engineering | 149 |
5,529,740 | https://en.wikipedia.org/wiki/Sex%20allocation | Sex allocation is the allocation of resources to male versus female reproduction in sexual species. Sex allocation theory tries to explain why many species produce equal number of males and females.
In dioecious species, where individuals are either male or female for their entire lifetimes, the allocation decision li... | Sex allocation | Biology | 3,611 |
75,893,889 | https://en.wikipedia.org/wiki/Plasmalysis | Plasmalysis is a electrochemical process that requires a voltage source. On the one hand, it describes the plasma-chemical dissociation of organic and inorganic compounds (e.g. C-H and N-H compounds) in interaction with a thermal/non-thermal plasma between two electrodes. On the other hand, it describes the synthesis, ... | Plasmalysis | Chemistry,Engineering | 1,609 |
2,310,971 | https://en.wikipedia.org/wiki/Gauss%27s%20lemma%20%28polynomials%29 | In algebra, Gauss's lemma, named after Carl Friedrich Gauss, is a theorem about polynomials over the integers, or, more generally, over a unique factorization domain (that is, a ring that has a unique factorization property similar to the fundamental theorem of arithmetic). Gauss's lemma underlies all the theory of fa... | Gauss's lemma (polynomials) | Mathematics | 2,519 |
45,642 | https://en.wikipedia.org/wiki/Demography | Demography () is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the interplay of fertility (births), mortality (deaths), and migration.
Demographic analysis examines and measures the dimensions and dynamics of populations; it can cover whole s... | Demography | Mathematics,Environmental_science | 5,315 |
74,838,922 | https://en.wikipedia.org/wiki/Ballet%20and%20fashion | Throughout its history, the costume of ballet has influenced and been influenced by fashion. Ballet-specific clothing used in productions and during practice, such as ballet flats, ballerina skirt, legwarmers, and leotards have been elements of fashion trends. Ballet costume itself has adapted aesthetically over the ye... | Ballet and fashion | Engineering | 2,388 |
69,072,781 | https://en.wikipedia.org/wiki/Find-me%20signals | Cells destined for apoptosis release molecules referred to as find-me signals. These signal molecules are used to attract phagocytes which engulf and eliminate damaged cells. Find-me signals are typically released by the apoptotic cells while the cell membrane remains intact. This ensures that the phagocytic cells are ... | Find-me signals | Physics,Chemistry | 3,248 |
56,626,732 | https://en.wikipedia.org/wiki/Yu%20Xi | Yu Xi (虞喜; 307–345 AD), courtesy name Zhongning (仲寧), was a Chinese astronomer, politician, and writer of the Jin dynasty (266–420 AD). He is best known for his discovery of the precession of the equinoxes, independently of the earlier ancient Greek astronomer Hipparchus. He also postulated that the Earth could be sph... | Yu Xi | Astronomy | 1,393 |
5,946,026 | https://en.wikipedia.org/wiki/People%20Capability%20Maturity%20Model | People Capability Maturity Model (short names: People CMM, PCMM, P-CMM) is a maturity framework that focuses on continuously improving the management and development of the human assets of an organization. It describes an evolutionary improvement path from ad hoc, inconsistently performed practices, to a mature, discip... | People Capability Maturity Model | Technology | 578 |
6,494,001 | https://en.wikipedia.org/wiki/International%20Union%20of%20Basic%20and%20Clinical%20Pharmacology | The International Union of Basic and Clinical Pharmacology (IUPHAR) is a voluntary, non-profit association representing the interests of scientists in pharmacology-related fields to facilitate Better Medicines through Global Education and Research around the world.
History
Established in 1959 as a section of the Inter... | International Union of Basic and Clinical Pharmacology | Chemistry | 1,569 |
21,333,387 | https://en.wikipedia.org/wiki/List%20of%20mass%20spectrometry%20acronyms | This is a compilation of initialisms and acronyms commonly used in mass spectrometry.
A
ADI – Ambient desorption ionization
AE – Appearance energy
AFADESI – Air flow-assisted desorption electrospray ionization
AFAI – Air flow-assisted ionization
AFAPA – Aerosol flowing atmospheric-pressure afterglow
AGHIS – All... | List of mass spectrometry acronyms | Physics,Chemistry | 1,425 |
65,418,263 | https://en.wikipedia.org/wiki/Claudia%20Mazz%C3%A0 | Claudia Mazzà is a professor of biomechanics at the Department of Mechanical Engineering at the University of Sheffield. Her research centres on biomechanics of human movement. She is the director of the EPSRC funded MultiSim project and a leading scientist in the Mobilise-D research project.
Education and career
Maz... | Claudia Mazzà | Engineering,Biology | 233 |
54,241,127 | https://en.wikipedia.org/wiki/Hexafluorothioacetone | Hexafluorothioacetone is an organic perfluoro thione compound with formula CF3CSCF3. At standard conditions it is a blue gas.
Production
Hexafluorothioacetone was first produced by Middleton in 1961 by boiling bis-(perfluoroisopropyl)mercury with sulfur.
Properties
Hexafluorothioacetone boils at 8 °C. Below this it i... | Hexafluorothioacetone | Chemistry | 992 |
250,877 | https://en.wikipedia.org/wiki/NGC%20604 | NGC 604 is an H II region inside the Triangulum Galaxy. It was discovered by William Herschel on September 11, 1784. It is among the largest H II regions in the Local Group of galaxies; at the galaxy's estimated distance of 2.7 million light-years, its longest diameter is roughly 1,520 light years (~460 parsecs), over ... | NGC 604 | Astronomy | 283 |
206,586 | https://en.wikipedia.org/wiki/Technological%20convergence | Technological convergence is the tendency for technologies that were originally unrelated to become more closely integrated and even unified as they develop and advance. For example, watches, telephones, television, computers, and social media platforms began as separate and mostly unrelated technologies, but have conv... | Technological convergence | Technology,Engineering | 7,436 |
2,008,426 | https://en.wikipedia.org/wiki/Information%20systems%20technician | An information systems technician is a technician whose responsibility is maintaining communications and computer systems.
Description
Information systems technicians operate and maintain information systems, facilitating system utilization. In many companies, these technicians assemble data sets and other details nee... | Information systems technician | Technology | 464 |
28,891,262 | https://en.wikipedia.org/wiki/Pendular%20water | Pendular water is the moisture clinging to particles, such as soil particles or sand, because of surface tension.
At the moisture content of a specific yield, gravity drainage will cease. This term relates to hydrology and groundwater flow.
Notes
External links
http://www.avalanche-center.org/Education/glossary/pen... | Pendular water | Chemistry,Engineering,Environmental_science | 78 |
63,384,990 | https://en.wikipedia.org/wiki/Mac%20OS%20Gujarati | Mac OS Gujarati is a character set developed by Apple Inc. It is an extension of the Gujarati portion of IS 13194:1991 (ISCII-91).
Code page layout
The following table shows the Mac OS Gujarati encoding. Each character is shown with its equivalent Unicode code point. Only the second half of the table (code points 128–... | Mac OS Gujarati | Technology | 116 |
63,392,468 | https://en.wikipedia.org/wiki/Abule-Ado%20explosion | The Abule-Ado explosion was an accidental explosion and fire that occurred in the Abule-Ado area around Festac Town, Amuwo Odofin Local Government Area, Lagos State, Nigeria. The explosion and fire started around 9 am on Sunday 15 March 2020; the fire was extinguished around 11 pm.
According to the Nigerian National P... | Abule-Ado explosion | Chemistry | 314 |
4,427,299 | https://en.wikipedia.org/wiki/1728%20%28number%29 | 1728 is the natural number following 1727 and preceding 1729. It is a dozen gross, or one great gross (or grand gross). It is also the number of cubic inches in a cubic foot.
In mathematics
1728 is the cube of 12, and therefore equal to the product of the six divisors of 12 (1, 2, 3, 4, 6, 12). It is also the product ... | 1728 (number) | Mathematics | 644 |
908,764 | https://en.wikipedia.org/wiki/Perl%20Data%20Language | Perl Data Language (abbreviated PDL) is a set of free software array programming extensions to the Perl programming language. PDL extends the data structures built into Perl, to include large multidimensional arrays, and adds functionality to manipulate those arrays as vector objects. It also provides tools for image p... | Perl Data Language | Mathematics | 1,096 |
10,300,318 | https://en.wikipedia.org/wiki/Federal%20Standard%20595 | Federal Standard 595, known as SAE AMS-STD-595 – Colors Used in Government Procurement, formerly FED-STD-595, is a United States Federal Standard for colors, issued by the General Services Administration.
History
FED-STD-595, 595A, and 595B
Federal Standard 595 is the color description and communication system develo... | Federal Standard 595 | Mathematics | 621 |
12,747,956 | https://en.wikipedia.org/wiki/Pseudoelementary%20class | In logic, a pseudoelementary class is a class of structures derived from an elementary class (one definable in first-order logic) by omitting some of its sorts and relations. It is the mathematical logic counterpart of the notion in category theory of (the codomain of) a forgetful functor, and in physics of (hypothesi... | Pseudoelementary class | Mathematics | 1,364 |
32,721,733 | https://en.wikipedia.org/wiki/Exonuclease%20VII | The enzyme exodeoxyribonuclease VII (EC 3.1.11.6, Escherichia coli exonuclease VII, E. coli exonuclease VII, endodeoxyribonuclease VII, exodeoxyribonuclease VII) is a bacterial exonuclease enzyme. It is composed of two nonidentical subunits; one large subunit and 4 small ones. that catalyses exonucleolytic cleavage in ... | Exonuclease VII | Biology | 168 |
218,445 | https://en.wikipedia.org/wiki/Lean%20manufacturing | Lean manufacturing is a method of manufacturing goods aimed primarily at reducing times within the production system as well as response times from suppliers and customers. It is closely related to another concept called just-in-time manufacturing (JIT manufacturing in short). Just-in-time manufacturing tries to match... | Lean manufacturing | Engineering | 6,691 |
6,886,776 | https://en.wikipedia.org/wiki/Drug-related%20crime | A drug-related crime is a crime to possess, manufacture, or distribute drugs classified as having a potential for abuse (such as cocaine, heroin, morphine and amphetamines). Drugs are also related to crime as drug trafficking and drug production are often controlled by drug cartels, organised crime and gangs. Some drug... | Drug-related crime | Chemistry | 1,556 |
1,723,156 | https://en.wikipedia.org/wiki/Fourth%2C%20fifth%2C%20and%20sixth%20derivatives%20of%20position | In physics, the fourth, fifth and sixth derivatives of position are defined as derivatives of the position vector with respect to time – with the first, second, and third derivatives being velocity, acceleration, and jerk, respectively. The higher-order derivatives are less common than the first three; thus their names... | Fourth, fifth, and sixth derivatives of position | Physics,Mathematics | 703 |
32,880,384 | https://en.wikipedia.org/wiki/InfiniteGraph | InfiniteGraph is a distributed graph database implemented in Java and C++ and is from a class of NOSQL ("Not Only SQL") database technologies that focus on graph data structures. Developers use InfiniteGraph to find useful and often hidden relationships in highly connected, complex big data sets. InfiniteGraph is cross... | InfiniteGraph | Mathematics | 465 |
106,270 | https://en.wikipedia.org/wiki/Plasmolysis | Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell is in a hypotonic solution resulting in a lower external osmotic pressure and a net flow of water into the cell. Through observation of plasmolysis and deplasmolysis, it ... | Plasmolysis | Chemistry,Biology | 991 |
45,196,112 | https://en.wikipedia.org/wiki/Charge-shift%20bond | In theoretical chemistry, the charge-shift bond is a proposed new class of chemical bonds that sits alongside the three familiar families of covalent, ionic, and metallic bonds where electrons are shared or transferred respectively. The charge shift bond derives its stability from the resonance of ionic forms rather th... | Charge-shift bond | Physics,Chemistry,Materials_science | 1,216 |
14,330,991 | https://en.wikipedia.org/wiki/Outline%20of%20nuclear%20technology | The following outline is provided as an overview of and topical guide to nuclear technology:
Nuclear technology – involves the reactions of atomic nuclei. Among the notable nuclear technologies are nuclear power, nuclear medicine, and nuclear weapons. It has found applications from smoke detectors to nuclear reactors,... | Outline of nuclear technology | Physics | 635 |
37,525,024 | https://en.wikipedia.org/wiki/Critical%20exponent%20of%20a%20word | In mathematics and computer science, the critical exponent of a finite or infinite sequence of symbols over a finite alphabet describes the largest number of times a contiguous subsequence can be repeated. For example, the critical exponent of "Mississippi" is 7/3, as it contains the string "ississi", which is of leng... | Critical exponent of a word | Mathematics | 539 |
45,995 | https://en.wikipedia.org/wiki/Building | A building or edifice is an enclosed structure with a roof and walls, usually standing permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for numerous factors, from building materials available, to weather condition... | Building | Engineering | 1,567 |
23,802,163 | https://en.wikipedia.org/wiki/Electrical%20impedance%20myography | Electrical impedance myography, or EIM, is a non-invasive technique for the assessment of muscle health that is based on the measurement of the electrical impedance characteristics of individual muscles or groups of muscles. The technique has been used for the purpose of evaluating neuromuscular diseases both for their... | Electrical impedance myography | Physics | 2,069 |
23,522,400 | https://en.wikipedia.org/wiki/C27H46O | {{DISPLAYTITLE:C27H46O}}
The molecular formula C27H46O (molar mass: 386.65 g/mol, exact mass: 386.354866) may refer to:
Cholestenol
Allocholesterol (Δ-4-Cholestenol) CAS#
Cholesterol (Δ-5-Cholestenol) CAS#
Epicholesterol (3α-Cholesterol) CAS#
Lathosterol (Δ-7-Cholestenol) CAS#
Zymostenol (Δ-8-Cholestenol) CAS#
C... | C27H46O | Chemistry | 156 |
297,520 | https://en.wikipedia.org/wiki/Head%20%28Unix%29 | head is a program on Unix and Unix-like operating systems used to display the beginning of a text file or piped data.
Syntax
The command syntax is:
head [options]
By default, will print the first 10 lines of its input to the standard output.
Option flags
Other command
Many early versions of Unix and Plan 9 did... | Head (Unix) | Technology | 247 |
54,323,077 | https://en.wikipedia.org/wiki/LeDock | LeDock is a molecular docking software, designed for protein-ligand interactions, that is compatible with Linux, macOS, and Windows.
The software can run as a standalone programme or from Jupyter Notebook. It supports the Tripos Mol2 file format.
Methodology
LeDock utilizes a simulated annealing and genetic algorith... | LeDock | Chemistry,Biology | 286 |
6,151,067 | https://en.wikipedia.org/wiki/Herta%20M%C3%BCller | Herta Müller (; born 17 August 1953) is a Romanian-German novelist, poet, essayist and recipient of the 2009 Nobel Prize in Literature. She was born in Nițchidorf (; ), Timiș County in Romania; her native languages are German and Romanian. Since the early 1990s, she has been internationally established, and her works h... | Herta Müller | Technology | 4,616 |
1,196 | https://en.wikipedia.org/wiki/Angle | In Euclidean geometry, an angle or plane angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.
Two intersecting curves may also define an angle, which is the angle of the rays lying tangent to the respective curves at their point of intersectio... | Angle | Physics | 4,260 |
392,874 | https://en.wikipedia.org/wiki/Hidden%20node%20problem | In wireless networking, the hidden node problem or hidden terminal problem occurs when a node can communicate with a wireless access point (AP), but cannot directly communicate with other nodes that are communicating with that AP. This leads to difficulties in medium access control sublayer since multiple nodes can sen... | Hidden node problem | Technology,Engineering | 1,516 |
23,534,876 | https://en.wikipedia.org/wiki/SUNGEN%20International%20Limited | SUNGEN International Limited is a subsidiary of Anwell Technologies Limited, with trading and manufacturing business in solar photovoltaics panels and modules.
Overview
SUNGEN has a thin film solar module production facility in Henan, China using Anwell Solar’s manufacturing technologies. The facility will be used to ... | SUNGEN International Limited | Engineering | 196 |
32,182,729 | https://en.wikipedia.org/wiki/Gradient-like%20vector%20field | In differential topology, a mathematical discipline, and more specifically in Morse theory, a gradient-like vector field is a generalization of gradient vector field.
The primary motivation is as a technical tool in the construction of Morse functions, to show that one can construct a function whose critical points ar... | Gradient-like vector field | Mathematics | 293 |
45,451,212 | https://en.wikipedia.org/wiki/Two-factor%20theory%20of%20intelligence | Charles Spearman developed his two-factor theory of intelligence using factor analysis. His research not only led him to develop the concept of the g factor of general intelligence, but also the s factor of specific intellectual abilities. L. L. Thurstone, Howard Gardner, and Robert Sternberg also researched the struc... | Two-factor theory of intelligence | Biology | 1,881 |
57,693,965 | https://en.wikipedia.org/wiki/Beatriz%20Rold%C3%A1n%20Cuenya | Beatriz Roldán Cuenya (born 1976 in Oviedo) is a Spanish physicist working in surface science and catalysis. Since 2017 she has been director of the Department of Interface Science at the Fritz Haber Institute of the Max Planck Society in Berlin, Germany. Since April 2023, she has also been interim director of the Depa... | Beatriz Roldán Cuenya | Chemistry | 840 |
4,047,952 | https://en.wikipedia.org/wiki/Mirex | Mirex is an organochloride that was commercialized as an insecticide and later banned because of its impact on the environment. This white crystalline odorless solid is a derivative of both cyclopentadiene and cubane. It was popularized to control fire ants but by virtue of chemical robustness and lipophilicity it was... | Mirex | Chemistry | 1,394 |
590,995 | https://en.wikipedia.org/wiki/Intermodulation | Intermodulation (IM) or intermodulation distortion (IMD) is the amplitude modulation of signals containing two or more different frequencies, caused by nonlinearities or time variance in a system. The intermodulation between frequency components will form additional components at frequencies that are not just at harmo... | Intermodulation | Physics,Engineering | 2,464 |
1,300,441 | https://en.wikipedia.org/wiki/Multiflow | Multiflow Computer, Inc., founded in April, 1984 near New Haven, Connecticut, USA, was a manufacturer and seller of minisupercomputer hardware and software embodying the VLIW design style. Multiflow, incorporated in Delaware, ended operations in March, 1990, after selling about 125 VLIW minisupercomputers in the United... | Multiflow | Technology | 2,813 |
76,419,161 | https://en.wikipedia.org/wiki/Spiroketals | In chemistry, Spiroketals are structural motifs composed of two heterocycles sharing one central carbon which makes them a subclass of spiro compound. Their structural specificity lays on the presence of one oxygen atom in each ring, in alpha of the spiro carbon. Although there are no rules about the size of each ring,... | Spiroketals | Chemistry | 462 |
58,666,321 | https://en.wikipedia.org/wiki/Numerical%20certification | Numerical certification is the process of verifying the correctness of a candidate solution to a system of equations. In (numerical) computational mathematics, such as numerical algebraic geometry, candidate solutions are computed algorithmically, but there is the possibility that errors have corrupted the candidates.... | Numerical certification | Mathematics | 1,384 |
67,310 | https://en.wikipedia.org/wiki/Disk%20read-and-write%20head | A disk read-and-write head is the small part of a disk drive that moves above the disk platter and transforms the platter's magnetic field into electric current (reads the disk) or, vice versa, transforms electric current into magnetic field (writes the disk). The heads have gone through a number of changes over the y... | Disk read-and-write head | Technology | 1,219 |
12,422,978 | https://en.wikipedia.org/wiki/C4H10O3 | {{DISPLAYTITLE:C4H10O3}}
The molecular formula C4H10O3 (molar mass: 106.12 g/mol, exact mass: 106.0630 u) may refer to:
1,2,4-Butanetriol
Diethyl ether peroxide
Diethylene glycol (DEG)
Trimethyl orthoformate (TMOF) | C4H10O3 | Chemistry | 89 |
6,037,050 | https://en.wikipedia.org/wiki/Ground-directed%20bombing | Ground-directed bombing (GDB) is a military tactic for airstrikes by ground-attack aircraft, strategic bombers, and other equipped air vehicles under command guidance from aviation ground support equipment and/or ground personnel (e.g., ground observers). Often used in poor weather and at night (75% of all Vietnam Wa... | Ground-directed bombing | Technology | 1,283 |
74,760,709 | https://en.wikipedia.org/wiki/Purpureocillium%20takamizusanense | Purpureocillium takamizusanense is a species of fungus in the genus Purpureocillium in the order of Hypocreales.
Biology
P. takamizusanense is the holomorph designation of this species. The anamorph form Isaria takamizusanensis and it's teleomorph Cordyceps rogamimontana were originally described to the genera Isaria ... | Purpureocillium takamizusanense | Biology | 175 |
24,327,287 | https://en.wikipedia.org/wiki/Rename%20%28computing%29 | In computing, rename refers to the altering of a name of a file. This can be done manually by using a shell command such as ren or mv, or by using batch renaming software that can automate the renaming process.
Implementations
The C standard library provides a function called rename which does this action. In POSIX, w... | Rename (computing) | Technology | 250 |
67,652,132 | https://en.wikipedia.org/wiki/Evernic%20acid | Evernic acid is an organic compound and depside with the molecular formula C17H16O7. Evernic acid was first isolated from the lichen Usnea longissima. Evernic acid is soluble in hot alcohol and poorly soluble in water. Evernic acid is produced by the lichens Ramalina, Evernia, and Hypogymnia.
References
Further readi... | Evernic acid | Chemistry | 96 |
48,803,920 | https://en.wikipedia.org/wiki/TJ-II | TJ-II is a flexible Heliac installed at Spain's National Fusion Laboratory.
Its first plasma run was in 1998, and as of 2024 is still operational.
History
The flexible Heliac TJ-II was designed on the basis of calculations performed by the team of physicists and engineers of CIEMAT, in collaboration with the Oak Rid... | TJ-II | Physics | 815 |
51,614,395 | https://en.wikipedia.org/wiki/NGC%20214 | NGC 214 is a spiral galaxy in the northern constellation of Andromeda, located at a distance of from the Milky Way. It was discovered on September 10, 1784 by William Herschel. The shape of this galaxy is given by its morphological classification of SABbc, which indicates a weak bar-like structure (SAB) at the core an... | NGC 214 | Astronomy | 225 |
10,904,266 | https://en.wikipedia.org/wiki/Coinduction | In computer science, coinduction is a technique for defining and proving properties of systems of concurrent interacting objects.
Coinduction is the mathematical dual to structural induction. Coinductively defined data types are known as codata and are typically infinite data structures, such as streams.
As a definit... | Coinduction | Mathematics | 1,597 |
273,679 | https://en.wikipedia.org/wiki/Astronomical%20spectroscopy | Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, ultraviolet, X-ray, infrared and radio waves that radiate from stars and other celestial objects. A stellar spectrum can reveal many properties of stars... | Astronomical spectroscopy | Physics,Chemistry,Astronomy | 4,316 |
16,993,001 | https://en.wikipedia.org/wiki/Moody%20chart | In engineering, the Moody chart or Moody diagram (also Stanton diagram) is a graph in non-dimensional form that relates the Darcy–Weisbach friction factor fD, Reynolds number Re, and surface roughness for fully developed flow in a circular pipe. It can be used to predict pressure drop or flow rate down such a pipe.
Hi... | Moody chart | Physics,Chemistry,Engineering | 629 |
151,762 | https://en.wikipedia.org/wiki/Zu%20Chongzhi | Zu Chongzhi (; 429 – 500), courtesy name Wenyuan (), was a Chinese astronomer, inventor, mathematician, politician, and writer during the Liu Song and Southern Qi dynasties. He was most notable for calculating pi as between 3.1415926 and 3.1415927, a record in precision which would not be surpassed for nearly 900 years... | Zu Chongzhi | Mathematics | 1,793 |
49,867,763 | https://en.wikipedia.org/wiki/Tuft%20cell | Tuft cells are chemosensory cells in the epithelial lining of the intestines. Similar tufted cells are found in the respiratory epithelium where they are known as brush cells. The name "tuft" refers to the brush-like microvilli projecting from the cells. Ordinarily there are very few tuft cells present but they have be... | Tuft cell | Biology | 2,013 |
47,331,609 | https://en.wikipedia.org/wiki/Pelargonium%20inquinans | Pelargonium inquinans, the scarlet geranium, is a species of plant in the genus Pelargonium (family Geraniaceae). It is a shrub endemic to South Africa, ranging from Mpumalanga to KwaZulu-Natal and Eastern Cape provinces. It is one of the ancestors of the hybrid line of horticultural pelargoniums, referred to as the zo... | Pelargonium inquinans | Biology | 720 |
46,510,192 | https://en.wikipedia.org/wiki/Herv%C3%A9%20Moulin | Hervé Moulin (born 1950 in Paris) is a French mathematician who is the Donald J. Robertson Chair of Economics at the Adam Smith Business School at the University of Glasgow. He is known for his research contributions in mathematical economics, in particular in the fields of mechanism design, social choice, game theory... | Hervé Moulin | Mathematics | 952 |
44,484,486 | https://en.wikipedia.org/wiki/Tylopilus%20costaricensis | Tylopilus costaricensis is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane forest. It was described as new to science in 1991.
References
External links
costaricensis
Fungi described in 1991
Fungi of Central America
Fungus species | Tylopilus costaricensis | Biology | 60 |
36,746,396 | https://en.wikipedia.org/wiki/Bernard%20Price%20Memorial%20Lecture | The Bernard Price Memorial Lecture is the premier annual lecture of the South African Institute of Electrical Engineers. It is of general scientific or engineering interest and is given by an invited guest, often from overseas, at several of the major centres on South Africa. The main lecture and accompanying dinner ar... | Bernard Price Memorial Lecture | Engineering | 499 |
331,755 | https://en.wikipedia.org/wiki/Transitional%20fossil | A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group. This is especially important where the descendant group is sharply differentiated by gross anatomy and mode of living from the ancestral group. These fossils serve as a... | Transitional fossil | Biology | 4,613 |
14,227,786 | https://en.wikipedia.org/wiki/Transmissibility%20%28structural%20dynamics%29 | Transmissibility, in the context of structural dynamics, can be defined as the ratio of the maximum force () on the floor as a result of the vibration of a machine to the maximum machine force ():
Where is equal to the damping ratio and is equal to the frequency ratio. is the ratio of the dynamic to static amplitud... | Transmissibility (structural dynamics) | Engineering | 90 |
42,599,642 | https://en.wikipedia.org/wiki/Hemihelix | A hemihelix is a curved geometric shape consisting of a series of helices with alternating chirality, connected by a perversion at the reversals.
The formation of hemihelices with periodic distributions of perversions in slender structures is understood in terms of competing buckling instabilities generated by in-plan... | Hemihelix | Mathematics | 82 |
99,468 | https://en.wikipedia.org/wiki/Bert%20H%C3%B6lldobler | Berthold Karl Hölldobler BVO (born 25 June 1936) is a German zoologist, sociobiologist and evolutionary biologist who studies evolution and social organization in ants. He is the author of several books, including The Ants, for which he and his co-author, E. O. Wilson, received the Pulitzer Prize for non-fiction writin... | Bert Hölldobler | Chemistry | 1,871 |
4,926,585 | https://en.wikipedia.org/wiki/John%20Muratore | John F. Muratore (born 1956) is a former NASA systems engineer-project manager and launch director at SpaceX. He is well known in the aerospace circles for his gregarious and unconventional style and use of rapid spiral development to reduce cost and schedule for introducing technical innovations.
Biography
Muratore ... | John Muratore | Engineering | 1,684 |
39,153,890 | https://en.wikipedia.org/wiki/Mycobacterium%20virus%20L5 | Mycobacterium virus L5 is a bacteriophage known to infect bacterial species of the genus Mycobacterium, including Mycobacterium smegmatis and Mycobacterium tuberculosis. The viral effect on these species plays an important role in vaccine development and research on Mycobacteria pathogenic properties.
References
Siph... | Mycobacterium virus L5 | Biology | 87 |
23,281,838 | https://en.wikipedia.org/wiki/Beryllium%20sulfate | Beryllium sulfate normally encountered as the tetrahydrate, [Be(H2O)4]SO4 is a white crystalline solid. It was first isolated in 1815 by Jons Jakob Berzelius. Beryllium sulfate may be prepared by treating an aqueous solution of many beryllium salts with sulfuric acid, followed by evaporation of the solution and crysta... | Beryllium sulfate | Chemistry | 400 |
12,086,235 | https://en.wikipedia.org/wiki/Instituto%20de%20Medicina%20Molecular | The Instituto de Medicina Molecular João Lobo Antunes (Institute of Molecular Medicine), or iMM for short, is an associated research institution of the University of Lisbon, in Lisbon, Portugal.
IMM is devoted to human genome research with the aim of contributing to a better understanding of disease mechanisms, develo... | Instituto de Medicina Molecular | Engineering,Biology | 378 |
70,417,545 | https://en.wikipedia.org/wiki/Vincent%20Bouchiat | Vincent Bouchiat (born 1970) is a French condensed matter physicist and entrepreneur. He was a CNRS research director from 1997 to 2019. In 2019 he co-founded the company Grapheal SAS, of which he is currently CEO.
Early life and education
Bouchiat was born to Claude Bouchiat and Marie-Anne Bouchiat, both of whom wer... | Vincent Bouchiat | Physics,Materials_science | 522 |
173,323 | https://en.wikipedia.org/wiki/Chorology | Chorology (from Greek , khōros, "place, space"; and , -logia) can mean
the study of the causal relations between geographical phenomena occurring within a particular region
the study of the spatial distribution of organisms (biogeography).
In geography, the term was first used by Strabo. In the twentieth century, Ri... | Chorology | Biology | 106 |
1,886,355 | https://en.wikipedia.org/wiki/Eudoxa | Eudoxa was a Swedish think tank, from 2000 to 2016. Eudoxa has a transhumanist, and liberal political profile, with a focus on promoting dynamism, emerging technologies, harm reduction policy and discussing the challenges of the environment and the future. It was independent from political parties and other political ... | Eudoxa | Engineering | 308 |
25,313,236 | https://en.wikipedia.org/wiki/C23H38O4 | The molecular formula C23H38O4 (molar mass: 378.54 g/mol, exact mass: 378.2770 u) may refer to:
Apocholic acid
2-Arachidonoylglycerol (2-AG)
Molecular formulas | C23H38O4 | Physics,Chemistry | 60 |
14,762,357 | https://en.wikipedia.org/wiki/ST13 | Hsc70-interacting protein also known as suppression of tumorigenicity 13 (ST13) is a protein that in humans is encoded by the ST13 gene.
Function
The protein encoded by this gene is an adaptor protein that mediates the association of the heat shock proteins HSP70 and HSP90. This protein has been shown to be involved... | ST13 | Chemistry | 137 |
363,293 | https://en.wikipedia.org/wiki/List%20of%20craters%20on%20Mercury | This is a list of named craters on Mercury, the innermost planet of the Solar System (for other features, see list of geological features on Mercury). Most Mercurian craters are named after famous writers, artists and composers. According to the rules by IAU's Working Group for Planetary System Nomenclature, all new cr... | List of craters on Mercury | Astronomy | 908 |
76,904,389 | https://en.wikipedia.org/wiki/Ana%20Passos | Ana Lúcia Silva de Passos (born 30 May 1967) is a politician and biologist. From 2015 to 2021, she was a member of the Assembly of the Republic of Portugal.
Biography
Ana Passos was born on 30 May 1967. She has a doctorate in genetics and molecular biology, and works as a biologist.
Passos belongs to the Socialist P... | Ana Passos | Chemistry,Biology | 195 |
14,054,801 | https://en.wikipedia.org/wiki/Koch%20reaction | The Koch reaction is an organic reaction for the synthesis of tertiary carboxylic acids from alcohols or alkenes and carbon monoxide. Some commonly industrially produced Koch acids include pivalic acid, 2,2-dimethylbutyric acid and 2,2-dimethylpentanoic acid. The Koch reaction employs carbon monoxide as a reagent and ... | Koch reaction | Chemistry | 896 |
12,471,936 | https://en.wikipedia.org/wiki/Hadamard%20manifold | In mathematics, a Hadamard manifold, named after Jacques Hadamard — more often called a Cartan–Hadamard manifold, after Élie Cartan — is a Riemannian manifold that is complete and simply connected and has everywhere non-positive sectional curvature. By Cartan–Hadamard theorem all Cartan–Hadamard manifolds are diffeomo... | Hadamard manifold | Mathematics | 208 |
10,405,712 | https://en.wikipedia.org/wiki/QuickLOAD | QuickLOAD is an internal ballistics predictor computer program for firearms.
For computations apart from other parameters,
the cartridge
the projectile (bullet)
the gun barrel length
the cartridge overall length
the propellant type and quantity
must be entered for calculating an estimated maximum chamber gas piez... | QuickLOAD | Physics | 1,160 |
26,136,135 | https://en.wikipedia.org/wiki/HIP%2079431%20b | HIP 79431 b is an extrasolar planet discovered by the W. M. Keck Observatory in 2010. The planet is found in an M type dwarf star catalogued as HIP 79431, and is located within the Scorpius constellation approximately 47 light years away from the Earth. Its orbital period lasts about 111.7 days and has an orbital eccen... | HIP 79431 b | Astronomy | 551 |
2,213,768 | https://en.wikipedia.org/wiki/Property%20of%20Baire | A subset of a topological space has the property of Baire (Baire property, named after René-Louis Baire), or is called an almost open set, if it differs from an open set by a meager set; that is, if there is an open set such that is meager (where denotes the symmetric difference).
Definitions
A subset of a to... | Property of Baire | Mathematics | 434 |
15,853,493 | https://en.wikipedia.org/wiki/Sectional%20density | Sectional density (often abbreviated SD) is the ratio of an object's mass to its cross sectional area with respect to a given axis. It conveys how well an object's mass is distributed (by its shape) to overcome resistance along that axis.
Sectional density is used in gun ballistics. In this context, it is the ratio ... | Sectional density | Physics,Chemistry,Engineering | 1,087 |
53,584,725 | https://en.wikipedia.org/wiki/Post-tech | Post-tech, (or post-technology, post-digital-technology) is type of technology that is more concerned about being human than about technology. It advocates a design that is not merely focused on efficiency and exploiting users by increasing their time spent with digital devices and technology itself but to support the ... | Post-tech | Technology,Engineering | 138 |
47,447,385 | https://en.wikipedia.org/wiki/Cyan%20Engineering | Cyan Engineering was an American computer engineering company located in Grass Valley, California. It was founded by Steve Mayer and Larry Emmons. The company was purchased in 1973 by Atari, Inc. and developed the Atari Video Computer System console, which was released in 1977 and renamed the Atari 2600 in November 198... | Cyan Engineering | Technology | 155 |
44,514,254 | https://en.wikipedia.org/wiki/Compact%20finite%20difference | The compact finite difference formulation, or Hermitian formulation, is a numerical method to compute finite difference approximations. Such approximations tend to be more accurate for their stencil size (i.e. their compactness) and, for hyperbolic problems, have favorable dispersive error and dissipative error propert... | Compact finite difference | Mathematics | 364 |
11,680,645 | https://en.wikipedia.org/wiki/Interval%20order | In mathematics, especially order theory,
the interval order for a collection of intervals on the real line
is the partial order corresponding to their left-to-right precedence relation—one interval, I1, being considered less than another, I2, if I1 is completely to the left of I2.
More formally, a countable poset is a... | Interval order | Mathematics | 623 |
34,976,899 | https://en.wikipedia.org/wiki/Group%20contraction | In theoretical physics, Eugene Wigner and Erdal İnönü have discussed the possibility to obtain from a given Lie group a different (non-isomorphic) Lie group by a group contraction with respect to a continuous subgroup of it. That amounts to a limiting operation on a parameter of the Lie algebra, altering the structure ... | Group contraction | Physics,Mathematics | 343 |
49,741,712 | https://en.wikipedia.org/wiki/Douglas%20Keszler | Douglas A. Keszler is a distinguished professor in the Department of Chemistry at Oregon State University, adjunct professor in the Physics Department at OSU and adjunct professor in the Department of Chemistry at University of Oregon. He is also the director of the Center for Sustainable Materials Chemistry, and a mem... | Douglas Keszler | Chemistry | 1,206 |
72,539,112 | https://en.wikipedia.org/wiki/S/2011%20J%203 | S/2011 J 3 is a small outer natural satellite of Jupiter discovered by Scott S. Sheppard on 27 September 2011, using the 6.5-meter Magellan-Baade Telescope at Las Campanas Observatory, Chile. It was announced by the Minor Planet Center 11 years later on 20 December 2022, after observations were collected over a long en... | S/2011 J 3 | Astronomy | 180 |
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