id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
values | token_count int64 3 51.8k |
|---|---|---|---|---|---|
419,615 | https://en.wikipedia.org/wiki/Power%20cord | A power cord, line cord, or mains cable is an electrical cable that temporarily connects an appliance to the mains electricity supply via a wall socket or extension cord. The terms are generally used for cables using a power plug to connect to a single-phase alternating current power source at the local line voltage (g... | Power cord | Physics,Engineering | 1,084 |
5,632,598 | https://en.wikipedia.org/wiki/Quotientable%20automorphism | In mathematics, in the realm of group theory, a quotientable automorphism of a group is an automorphism that takes every normal subgroup to within itself. As a result, it gives a corresponding automorphism for every quotient group.
All family automorphisms are quotientable, and particularly, all class automorphisms an... | Quotientable automorphism | Mathematics | 114 |
36,782,365 | https://en.wikipedia.org/wiki/Boletus%20curtisii | Boletus curtisii is a species of fungus in the family Boletaceae. It produces small- to medium-sized fruit bodies (mushrooms) with a convex cap up to wide atop a slender stem that can reach a length of . In young specimens, the cap and stem are bright golden yellow, although the color dulls to brownish when old. Both ... | Boletus curtisii | Biology | 1,453 |
22,018,823 | https://en.wikipedia.org/wiki/LOBSTER | LOBSTER was a European network monitoring system, based on passive monitoring of traffic on the internet. Its functions were to gather traffic information as a basis for improving internet performance, and to detect security incidents.
Objectives
To build an advanced pilot European Internet traffic monitoring infrast... | LOBSTER | Technology,Engineering | 514 |
51,050,926 | https://en.wikipedia.org/wiki/%28523794%29%202015%20RR245 | , provisional designation , is a large trans-Neptunian object of the Kuiper belt in the outermost regions of the Solar System. It was discovered on 9 September 2015, by the Outer Solar System Origins Survey at Mauna Kea Observatories on the Big island of Hawaii, in the United States. The object is in a rare 2:9 resonan... | (523794) 2015 RR245 | Physics,Astronomy | 816 |
77,555,928 | https://en.wikipedia.org/wiki/Exidia%20zelleri | Exidia zelleri is a species of fungus in the family Auriculariaceae. Basidiocarps (fruit bodies) are gelatinous, pale violaceous grey to grey-brown, button-shaped at first then coalescing and becoming irregularly effused. It grows on dead branches of broadleaved trees and is known from north-western North America.
Tax... | Exidia zelleri | Biology | 377 |
5,204,834 | https://en.wikipedia.org/wiki/Gyrodyne | A gyrodyne is a type of VTOL aircraft with a helicopter rotor-like system that is driven by its engine for takeoff and landing only, and includes one or more conventional propeller or jet engines to provide thrust during cruising flight. During forward flight the rotor is unpowered and free-spinning, like an autogyro ... | Gyrodyne | Engineering | 2,179 |
813,176 | https://en.wikipedia.org/wiki/AI%20takeover | An AI takeover is an imagined scenario in which artificial intelligence (AI) emerges as the dominant form of intelligence on Earth and computer programs or robots effectively take control of the planet away from the human species, which relies on human intelligence. Possible scenarios include replacement of the entire ... | AI takeover | Technology | 3,474 |
63,442,371 | https://en.wikipedia.org/wiki/Regulation%20of%20algorithms | Regulation of algorithms, or algorithmic regulation, is the creation of laws, rules and public sector policies for promotion and regulation of algorithms, particularly in artificial intelligence and machine learning. For the subset of AI algorithms, the term regulation of artificial intelligence is used. The regulatory... | Regulation of algorithms | Mathematics,Technology | 1,983 |
1,920,638 | https://en.wikipedia.org/wiki/Al-Dhira%27 | Al-Dhira' and similar spellings (e.g. "Alderaan", "Al-Dhirá'án", "Aldryan") is a disused name for the two pairs of stars α and β Canis Minoris (Procyon and Gomeisa) and α and β Geminorum (Castor and Pollux).
The name was taken from Arabic al-dhirā`ain الذراعين (meaning "the two forearms" or "the two front paws" or "t... | Al-Dhira' | Astronomy | 218 |
175,285 | https://en.wikipedia.org/wiki/Relational%20algebra | In database theory, relational algebra is a theory that uses algebraic structures for modeling data and defining queries on it with well founded semantics. The theory was introduced by Edgar F. Codd.
The main application of relational algebra is to provide a theoretical foundation for relational databases, particularl... | Relational algebra | Mathematics | 5,054 |
23,443,332 | https://en.wikipedia.org/wiki/C15H24 | {{DISPLAYTITLE:C15H24}}
The molecular formula C15H24 (molar mass : 204.35 g/mol) may refer to:
Sesquiterpenes
Acyclic
Farnesene
Monocyclic
Bergamotene
Bisabolene
Elemene
Germacrene
Humulene
Zingiberene
Bicyclic
Amorpha-4,11-diene
Aristolochene
Cadinene
Caryophyllene
Guaiene
Selinene
Thujopsene
Valenc... | C15H24 | Chemistry | 142 |
34,183,088 | https://en.wikipedia.org/wiki/SEA%20Native%20Peptide%20Ligation | Protein chemical synthesis by native peptide ligation of unprotected peptide segments is an interesting complement and potential alternative to the use of living systems for producing proteins.
The synthesis of proteins requires efficient native peptide ligation methods, which enable the chemoselective formation of a n... | SEA Native Peptide Ligation | Chemistry | 719 |
68,553,796 | https://en.wikipedia.org/wiki/Genetic%20vaccine | A genetic vaccine (also gene-based vaccine) is a vaccine that contains nucleic acids such as DNA or RNA that lead to protein biosynthesis of antigens within a cell. Genetic vaccines thus include DNA vaccines, RNA vaccines and viral vector vaccines.
Properties
Most vaccines other than live attenuated vaccines and gene... | Genetic vaccine | Chemistry,Biology | 847 |
7,737,880 | https://en.wikipedia.org/wiki/Twister%20supersonic%20separator | The Twister supersonic separator is a compact tubular device which is used for removing water and/or hydrocarbon dewpointing of natural gas. The principle of operation is similar to the near isentropic Brayton cycle of a turboexpander. The gas is accelerated to supersonic velocities within the tube using a De Laval n... | Twister supersonic separator | Chemistry,Engineering | 323 |
7,445,076 | https://en.wikipedia.org/wiki/Extra-pair%20copulation | Extra-pair copulation (EPC) is a mating behaviour in monogamous species. Monogamy is the practice of having only one sexual partner at any one time, forming a long-term bond and combining efforts to raise offspring together; mating outside this pairing is extra-pair copulation. Across the animal kingdom, extra-pair cop... | Extra-pair copulation | Biology | 2,239 |
63,441,722 | https://en.wikipedia.org/wiki/Microsoft%20MACRO-80 | Microsoft MACRO-80 (often shortened to M80) is a relocatable macro assembler for Intel 8080 and Zilog Z80 microcomputer systems.
The complete MACRO-80 package includes the MACRO-80 Assembler, the LINK-80 Linking Loader, and the CREF-80 Cross Reference Facility. The LIB-80 Library Manager is included in CP/M versions on... | Microsoft MACRO-80 | Technology | 261 |
10,889,413 | https://en.wikipedia.org/wiki/Key%20distribution%20in%20wireless%20sensor%20networks | Key distribution is an important issue in wireless sensor network (WSN) design. WSNs are networks of small, battery-powered, memory-constraint devices named sensor nodes, which have the capability of wireless communication over a restricted area. Due to memory and power constraints, they need to be well arranged to bui... | Key distribution in wireless sensor networks | Technology | 556 |
76,454,547 | https://en.wikipedia.org/wiki/Lentilactobacillus%20kefiri | Lentilactobacillus kefiri is species of rod-shaped nonmotile bacteria. It is one of the main lactic acid bacteria species found in kefir and kefir grains. It can be bought and used as a probiotic.
Colonies on MRS agar are grayish, smooth, flat and 2 to 4mm in diameter. It is obligately heterofermentive, and can ferme... | Lentilactobacillus kefiri | Biology | 149 |
22,981,865 | https://en.wikipedia.org/wiki/Quantum%20tunnelling%20composite | Quantum tunnelling composites (QTCs) are composite materials of metals and non-conducting elastomeric binder, used as pressure sensors. They use quantum tunnelling: without pressure, the conductive elements are too far apart to conduct electricity; when pressure is applied, they move closer and electrons can tunnel thr... | Quantum tunnelling composite | Physics,Materials_science,Technology,Engineering | 1,003 |
35,957,282 | https://en.wikipedia.org/wiki/Mori%20domain | In algebra, a Mori domain, named after Yoshiro Mori by , is an integral domain satisfying the ascending chain condition on integral divisorial ideals. Noetherian domains and Krull domains both have this property. A commutative ring is a Krull domain if and only if it is a Mori domain and completely integrally closed. A... | Mori domain | Mathematics | 121 |
2,724,706 | https://en.wikipedia.org/wiki/Statistically%20improbable%20phrase | A statistically improbable phrase (SIP) is a phrase or set of words that occurs more frequently in a document (or collection of documents) than in some larger corpus. Amazon.com uses this concept in determining keywords for a given book or chapter, since keywords of a book or chapter are likely to appear disproportiona... | Statistically improbable phrase | Technology | 556 |
24,567,574 | https://en.wikipedia.org/wiki/Health%20Canada%20Sodium%20Working%20Group | On October 25, 2007, the Minister of Health announced that the Government of Canada would establish an expert Sodium Working Group to explore options for reducing sodium intake and cardiovascular disease among Canadians.
In announcing the creation of the Working Group, the Minister of Health said, "Through the format... | Health Canada Sodium Working Group | Chemistry | 788 |
599,709 | https://en.wikipedia.org/wiki/Karyogamy | Karyogamy is the final step in the process of fusing together two haploid eukaryotic cells, and refers specifically to the fusion of the two nuclei. Before karyogamy, each haploid cell has one complete copy of the organism's genome. In order for karyogamy to occur, the cell membrane and cytoplasm of each cell must fuse... | Karyogamy | Biology | 2,479 |
18,119,717 | https://en.wikipedia.org/wiki/Web%20typography | Web typography, like typography generally, is the design of pages their layout and typeface choices. Unlike traditional print-based typography (where the page is fixed once typeset), pages intended for display on the World Wide Web have additional technical challenges andgiven its ability to change the presentation dyn... | Web typography | Engineering | 3,027 |
24,508,920 | https://en.wikipedia.org/wiki/Gymnopilus%20josserandii | Gymnopilus josserandii is a species of mushroom in the family Hymenogastraceae.
See also
List of Gymnopilus species
External links
Gymnopilus josserandii at Index Fungorum
josserandii
Fungi of North America
Fungus species | Gymnopilus josserandii | Biology | 59 |
3,189,819 | https://en.wikipedia.org/wiki/History%20of%20candle%20making | Candle making was developed independently in a number of countries around the world.
Candles were primarily made from tallow and beeswax in Europe from the Roman period until the modern era, when spermaceti (from sperm whales) was used in the 18th and 19th centuries, and purified animal fats (stearin) and paraffin wax... | History of candle making | Technology | 3,080 |
46,770 | https://en.wikipedia.org/wiki/Fixed-wing%20aircraft | A fixed-wing aircraft is a heavier-than-air aircraft, such as an airplane, which is capable of flight using aerodynamic lift. Fixed-wing aircraft are distinct from rotary-wing aircraft (in which a rotor mounted on a spinning shaft generates lift), and ornithopters (in which the wings oscillate to generate lift). The wi... | Fixed-wing aircraft | Engineering | 7,028 |
16,191,366 | https://en.wikipedia.org/wiki/Boletus%20barrowsii | Boletus barrowsii, also known in English as the white king bolete after its pale colored cap, is an edible and highly regarded fungus in the genus Boletus that inhabits western North America. Found under ponderosa pine and live oak in autumn, it was considered a color variant of the similarly edible B. edulis for many ... | Boletus barrowsii | Biology | 605 |
94,620 | https://en.wikipedia.org/wiki/Saeculum | A is a length of time roughly equal to the potential lifetime of a person or, equivalently, the complete renewal of a human population.
Background
Originally it meant the time from the moment that something happened (for example the founding of a city) until the point in time that all people who had lived at the firs... | Saeculum | Physics,Mathematics | 484 |
1,163,049 | https://en.wikipedia.org/wiki/Lumen%20%28unit%29 | The lumen (symbol: lm) is the unit of luminous flux, a measure of the perceived power of visible light emitted by a source, in the International System of Units (SI). Luminous flux differs from power (radiant flux), which encompasses all electromagnetic waves emitted, including non-visible ones such as thermal radiatio... | Lumen (unit) | Mathematics | 1,305 |
22,511,732 | https://en.wikipedia.org/wiki/Boylston%20Street%20Fishweir | In archeological literature, the name Boylston Street Fishweir refers to ancient fishing structures first discovered in 1913, buried below Boylston Street in Boston, Massachusetts. Reports written in 1942 and 1949 describe what was thought to be remains of one large fishweir, 2,500 years old, made of up to 65,000 wood... | Boylston Street Fishweir | Environmental_science | 1,460 |
34,709,019 | https://en.wikipedia.org/wiki/Denjoy%E2%80%93Luzin%20theorem | In mathematics, the Denjoy–Luzin theorem, introduced independently by and
states that if a trigonometric series converges absolutely on a set of positive measure, then the sum of its coefficients converges absolutely, and in particular the trigonometric series converges absolutely everywhere.
References
Fourier s... | Denjoy–Luzin theorem | Mathematics | 65 |
51,865,176 | https://en.wikipedia.org/wiki/Generalized-strain%20mesh-free%20formulation | The generalized-strain mesh-free (GSMF) formulation is a local meshfree method in the field of numerical analysis, completely integration free, working as a weighted-residual weak-form collocation. This method was first presented by Oliveira and Portela (2016), in order to further improve the computational efficiency o... | Generalized-strain mesh-free formulation | Mathematics | 997 |
16,019,630 | https://en.wikipedia.org/wiki/Adil%20Shamoo | Adil E. Shamoo (born August 1, 1941) is an Iraqi biochemist with an interest in biomedical ethics and foreign policy. He is currently a professor at the Department of Biochemistry and Molecular Biology at the University of Maryland.
Professional
In 1998, he founded the journal Accountability in Research, and has serv... | Adil Shamoo | Chemistry,Biology | 658 |
6,587,798 | https://en.wikipedia.org/wiki/Wildlife%20of%20Brazil | The wildlife of Brazil comprises all naturally occurring animals, plants, and fungi in the South American country. Home to 60% of the Amazon Rainforest, which accounts for approximately one-tenth of all
species in the world, Brazil is considered to have the greatest... | Wildlife of Brazil | Biology | 2,558 |
1,964,571 | https://en.wikipedia.org/wiki/Number%20needed%20to%20treat | The number needed to treat (NNT) or number needed to treat for an additional beneficial outcome (NNTB) is an epidemiological measure used in communicating the effectiveness of a health-care intervention, typically a treatment with medication. The NNT is the average number of patients who need to be treated to prevent o... | Number needed to treat | Chemistry,Biology,Environmental_science | 1,608 |
2,911,654 | https://en.wikipedia.org/wiki/Data%20conversion | Data conversion is the conversion of computer data from one format to another. Throughout a computer environment, data is encoded in a variety of ways. For example, computer hardware is built on the basis of certain standards, which requires that data contains, for example, parity bit checks. Similarly, the operating s... | Data conversion | Technology | 1,922 |
13,433,266 | https://en.wikipedia.org/wiki/Gadolinium%28III%29%20nitrate | Gadolinium(III) nitrate is an inorganic compound of gadolinium. This salt is used as a water-soluble neutron poison in nuclear reactors. Gadolinium nitrate, like all nitrate salts, is an oxidizing agent.
The most common form of this substance is hexahydrate Gd(NO3)3•6H2O with molecular weight 451.36 g/mol and CAS Numb... | Gadolinium(III) nitrate | Chemistry | 211 |
41,282,668 | https://en.wikipedia.org/wiki/Global%20Drifter%20Program | The Global Drifter Program (GDP) (formerly known as the Surface Velocity Program (SVP)) was conceived by Prof. Peter Niiler, with the objective of collecting measurements of surface ocean currents, sea surface temperature and sea-level atmospheric pressure using drifters. It is the principal component of the Global Sur... | Global Drifter Program | Physics,Environmental_science | 780 |
3,221,992 | https://en.wikipedia.org/wiki/Banked%20turn | A banked turn (or banking turn) is a turn or change of direction in which the vehicle banks or inclines, usually towards the inside of the turn. For a road or railroad this is usually due to the roadbed having a transverse down-slope towards the inside of the curve. The bank angle is the angle at which the vehicle is... | Banked turn | Physics,Chemistry,Engineering | 2,019 |
15,553,696 | https://en.wikipedia.org/wiki/Volta%20potential | The Volta potential (also called Volta potential difference, contact potential difference, outer potential difference, Δψ, or "delta psi") in electrochemistry, is the electrostatic potential difference between two metals (or one metal and one electrolyte) that are in contact and are in thermodynamic equilibrium. Specif... | Volta potential | Chemistry | 707 |
9,753,794 | https://en.wikipedia.org/wiki/Reticulum%20%28anatomy%29 | The reticulum is the second chamber in the four-chamber alimentary canal of a ruminant mammal. Anatomically it is the smaller portion of the reticulorumen along with the rumen. Together these two compartments make up 84% of the volume of the total stomach.
The reticulum is colloquially referred to as the honeycomb, b... | Reticulum (anatomy) | Biology | 854 |
46,177 | https://en.wikipedia.org/wiki/Epidemic%20typhus | Epidemic typhus, also known as louse-borne typhus, is a form of typhus so named because the disease often causes epidemics following wars and natural disasters where civil life is disrupted. Epidemic typhus is spread to people through contact with infected body lice, in contrast to endemic typhus which is usually trans... | Epidemic typhus | Biology,Environmental_science | 4,566 |
6,447,481 | https://en.wikipedia.org/wiki/Rhizopus%20arrhizus | Rhizopus arrhizus is a fungus of the family Mucoraceae, characterized by sporangiophores that arise from nodes at the point where the rhizoids are formed and by a hemispherical columella. It is the most common cause of mucormycosis in humans and occasionally infects other animals.
Rhizopus arrhizus spores contain ribo... | Rhizopus arrhizus | Biology | 368 |
37,196,530 | https://en.wikipedia.org/wiki/Out%20of%20the%20box%20%28feature%29 | An out-of-the-box feature or functionality (also called OOTB or off the shelf), particularly in software, is a native feature or built-in functionality of a product that comes directly from the vendor and works immediately when the product is placed in service. In the context of software, out-of-the-box features and fu... | Out of the box (feature) | Technology | 144 |
33,187,484 | https://en.wikipedia.org/wiki/Baker%27s%20technique | In theoretical computer science, Baker's technique is a method for designing polynomial-time approximation schemes (PTASs) for problems on planar graphs. It is named after Brenda Baker, who announced it in a 1983 conference and published it in the Journal of the ACM in 1994.
The idea for Baker's technique is to break ... | Baker's technique | Mathematics | 447 |
32,541,936 | https://en.wikipedia.org/wiki/Ligand%20efficiency | Ligand efficiency is a measurement of the binding energy per atom of a ligand to its binding partner, such as a receptor or enzyme.
Ligand efficiency is used in drug discovery research programs to assist in narrowing focus to lead compounds with optimal combinations of physicochemical properties and pharmacological pr... | Ligand efficiency | Chemistry,Biology | 619 |
39,430,307 | https://en.wikipedia.org/wiki/Benedikt%20L%C3%B6we | Benedikt Löwe
(born 1972) is a German mathematician and logician working at the
universities of Hamburg and Cambridge.
He is known for his work on mathematical logic and the foundations of mathematics, as well as for initiating the interdisciplinary conference series Foundations of the Formal Sciences (FotFS; 1999–20... | Benedikt Löwe | Mathematics | 586 |
53,974,293 | https://en.wikipedia.org/wiki/Teufe | Teufe is the German mining term for depth. The Teufe (hT) indicates how deep a given point lies below the surface of an open-cast pit or below the ground level in the area surrounding the pit. By contrast, the height, h, refers to its distance from a reference surface 'above'. The vertical distance between the surface ... | Teufe | Physics,Mathematics | 380 |
40,699,009 | https://en.wikipedia.org/wiki/Alkylbenzene%20sulfonate | Alkylbenzene sulfonates are a class of anionic surfactants, consisting of a hydrophilic sulfonate head-group and a hydrophobic alkylbenzene tail-group. Along with sodium laureth sulfate, they are one of the oldest and most widely used synthetic detergents and may be found in numerous personal-care products (soaps, sham... | Alkylbenzene sulfonate | Chemistry,Technology | 1,052 |
21,123,339 | https://en.wikipedia.org/wiki/Covering%20graph | In the mathematical discipline of graph theory, a graph is a covering graph of another graph if there is a covering map from the vertex set of to the vertex set of . A covering map is a surjection and a local isomorphism: the neighbourhood of a vertex in is mapped bijectively onto the neighbourhood of in .
The ... | Covering graph | Mathematics | 1,526 |
40,111,892 | https://en.wikipedia.org/wiki/Delvotest | Delvotest is a broad spectrum microbial inhibition test used in dairy for testing antibiotic residue in milk and milk products. It is used to ensure milk safety and is produced by the global company DSM.
The dairy sector has a responsibility to prevent the presence of antibiotic residues in milk for health reasons, pr... | Delvotest | Chemistry,Biology | 302 |
49,209 | https://en.wikipedia.org/wiki/Carburetor | A carburetor (also spelled carburettor or carburetter) is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the Venturi effect or Bernoulli's principle in the main metering circuit, though various ot... | Carburetor | Technology | 4,045 |
66,662,848 | https://en.wikipedia.org/wiki/Neoantrodia%20primaeva | Neoantrodia primaeva is a species of fungus belonging to the family Fomitopsidaceae.
Synonym:
Antrodia primaeva Renvall & Niemelä, 1992 (= basionym)
References
Fomitopsidaceae
Fungus species | Neoantrodia primaeva | Biology | 53 |
5,531,434 | https://en.wikipedia.org/wiki/Conservation-dependent%20species | A conservation-dependent species is a species which has been categorized as "Conservation Dependent" ("LR/cd") by the International Union for Conservation of Nature (IUCN), as dependent on conservation efforts to prevent it from becoming endangered. A species that is reliant on the conservation attempts of humans is co... | Conservation-dependent species | Biology | 1,236 |
59,006,704 | https://en.wikipedia.org/wiki/Xiang%20Li%20%28hacker%29 | Xiang Li () is a Chinese computer hacker. He is serving a twelve-year sentence in federal prison in the United States.
Early life
Li was born in Chengdu, China in 1979.
Career
From Chengdu, he operated "CRACK99", a website that sold stolen software globally from 2008 until his arrest by U.S. authorities in 2011. Du... | Xiang Li (hacker) | Technology | 1,126 |
19,860,955 | https://en.wikipedia.org/wiki/Sar%20%28Unix%29 | System Activity Report (sar) is a Unix System V-derived system monitor command used to report on various system loads, including CPU activity, memory/paging, interrupts, device load, network and swap space utilization. Sar uses /proc filesystem for gathering information.
Platform support
Sar was originally developed ... | Sar (Unix) | Technology | 366 |
66,249,878 | https://en.wikipedia.org/wiki/Arctic%20Wolf%20Networks | Arctic Wolf Networks is a cybersecurity company that provides security monitoring to detect and respond to cyber threats. The company monitors on-premises computers, networks and cloud-based information assets from malicious activity such as cybercrime, ransomware, and malicious software attacks.
History
Founded in 20... | Arctic Wolf Networks | Engineering | 302 |
27,012 | https://en.wikipedia.org/wiki/Software%20crisis | Software crisis is a term used in the early days of computing science for the difficulty of writing useful and efficient computer programs in the required time. The software crisis was due to the rapid increases in computer power and the complexity of the problems that could be tackled. With the increase in the complex... | Software crisis | Technology | 375 |
44,312,199 | https://en.wikipedia.org/wiki/Eww%20%28web%20browser%29 | Emacs Web Wowser (a backronym of "eww") is a lightweight web browser within the GNU Emacs text editor. Eww can only do basic rendering of HTML; there is no capability for executing JavaScript or handling the intricacies of CSS. It was developed by Lars Magne Ingebrigtsen, who also created the underlying HTML rendering ... | Eww (web browser) | Technology | 145 |
12,534,519 | https://en.wikipedia.org/wiki/Amplitude%20adjusting | The Amplitude adjusting (also referred to as Amplitude control) enables the power control of electric loads, which are operated with AC voltage. A representative application is the heating control of industrial high temperature furnaces.
Functionality
Contrary to the conventional phase angle or full wave control,
d... | Amplitude adjusting | Physics,Engineering | 322 |
53,611,457 | https://en.wikipedia.org/wiki/NGC%204424 | NGC 4424 is a spiral galaxy located in the equatorial constellation of Virgo. It was discovered February 27, 1865 by German astronomer Heinrich Louis d'Arrest. This galaxy is located at a distance of 13.5 million light years and is receding with a heliocentric radial velocity of 442 km/s. It has a morphological class o... | NGC 4424 | Astronomy | 542 |
4,243,339 | https://en.wikipedia.org/wiki/Russula%20vesca | Russula vesca, known by the common names of bare-toothed Russula or the flirt, is a basidiomycete mushroom of the genus Russula.
Taxonomy
Russula vesca was described, and named by the eminent Swedish mycologist Elias Magnus Fries (1794–1878). The specific epithet is the feminine of the Latin adjective vescus, meaning... | Russula vesca | Biology | 336 |
32,046,954 | https://en.wikipedia.org/wiki/Marasmius%20sullivantii | Marasmius sullivantii is a species of fungus in the family Marasmiaceae. The species was originally described by the French botanist Jean Pierre François Camille Montagne in 1856.
References
External links
Fungi described in 1856
Fungi of North America
sullivantii
Taxa named by Camille Montagne
Fungus species | Marasmius sullivantii | Biology | 60 |
57,522,707 | https://en.wikipedia.org/wiki/Kathleen%20Madden | Kathleen Marie Madden is an American mathematician who works in dynamical systems. She was the dean of the School of Natural Sciences, Mathematics, and Engineering at California State University, Bakersfield. She won the George Pólya Award and is the co-author of the book Discovering Discrete Dynamical Systems.
Educa... | Kathleen Madden | Mathematics | 364 |
42,591,787 | https://en.wikipedia.org/wiki/Axial%20line%20%28dermatomes%29 | The axial line is the line between two adjacent dermatomes that are not represented by immediately adjacent spinal levels. Although dermatomes are shown to be discrete segments on dermatomal maps (like in the image opposite), they are in fact not; adjacent dermatomes overlap with one another. This is one of the reasons... | Axial line (dermatomes) | Biology | 130 |
3,973,930 | https://en.wikipedia.org/wiki/Electrophoretic%20mobility%20shift%20assay | An electrophoretic mobility shift assay (EMSA) or mobility shift electrophoresis, also referred as a gel shift assay, gel mobility shift assay, band shift assay, or gel retardation assay, is a common affinity electrophoresis technique used to study protein–DNA or protein–RNA interactions. This procedure can determine ... | Electrophoretic mobility shift assay | Chemistry,Engineering,Biology | 1,155 |
78,273,960 | https://en.wikipedia.org/wiki/PKS%200537-441 | PKS 0537-441 is a blazar located in the constellation of Pictor. It has a redshift of 0.896 and was discovered in 1973 by an American astronomer named Olin J. Eggen, who noted it as a luminous quasar. This is a BL Lacertae object in literature because of its featureless optical spectra as well as both a possible gravit... | PKS 0537-441 | Astronomy | 581 |
47,941,274 | https://en.wikipedia.org/wiki/2%2C3-Xylidine | 2,3-Xylidine is the organic compound with the formula C6H3(CH3)2NH2. it is one of several isomeric xylidines. It is a colorless viscous liquid. The compound is used in the production of the drug mefenamic acid and the herbicide xylachlor.
References
Anilines | 2,3-Xylidine | Chemistry | 78 |
35,281,127 | https://en.wikipedia.org/wiki/.NET%20Gadgeteer | Microsoft .NET Gadgeteer is an open-source rapid-prototyping standard for building small electronic devices using the Microsoft .NET Micro Framework and Microsoft Visual Studio/Visual C# Express.
The Gadgeteer platform
The Gadgeteer platform centers around a Gadgeteer mainboard with a microcontroller running the .NET ... | .NET Gadgeteer | Engineering | 705 |
68,597,933 | https://en.wikipedia.org/wiki/Zhilan%20Feng | Zhilan Julie Feng (born 1959) is a Chinese-American applied mathematician whose research topics include mathematical biology, population dynamics, and epidemiology. She is a professor of mathematics at Purdue University, and a program director in the Division of Mathematical Sciences at the National Science Foundation.... | Zhilan Feng | Mathematics,Biology | 425 |
3,371,392 | https://en.wikipedia.org/wiki/Infill | In urban planning, infill, or in-fill, is the rededication of land in an urban environment, usually open-space, to new construction. Infill also applies, within an urban polity, to construction on any undeveloped land that is not on the urban margin. The slightly broader term "land recycling" is sometimes used instead.... | Infill | Engineering | 2,527 |
47,807,559 | https://en.wikipedia.org/wiki/Oldenburger%20Computer-Museum | The Oldenburg Computer Museum (OCM) is a museum founded in 2008 in Oldenburg (Oldb), Lower-Saxony, Germany that is dedicated to the preservation and operational presentation of the history of home computing.
Overview
The museum presents computers, video game consoles, and arcade video game machines from the 1970s thr... | Oldenburger Computer-Museum | Technology | 505 |
66,443,279 | https://en.wikipedia.org/wiki/H3R26me2 | H3R26me2 is an epigenetic modification to the DNA packaging protein histone H3. It is a mark that indicates the di-methylation at the 26th arginine residue of the histone H3 protein. In epigenetics, arginine methylation of histones H3 and H4 is associated with a more accessible chromatin structure and thus higher level... | H3R26me2 | Chemistry | 1,158 |
42,104,891 | https://en.wikipedia.org/wiki/Packet%20Sender | is an open source utility to allow sending and receiving TCP and UDP packets. It also supports TCP connections using SSL, intense traffic generation, HTTP(S) GET/POST requests, and panel generation. It is available for Windows, Mac, and Linux. It is licensed GNU General Public License v2 and is free software. Packet Se... | Packet Sender | Engineering | 629 |
46,809,690 | https://en.wikipedia.org/wiki/Penicillium%20moldavicum | Penicillium moldavicum is an anamorph species of the genus Penicillium.
References
moldavicum
Fungi described in 1967
Fungus species | Penicillium moldavicum | Biology | 34 |
19,688,961 | https://en.wikipedia.org/wiki/Berm%C3%BAdez%20%28rum%29 | J. Armando Bermúdez & Co., S.A., known as Bermúdez, is the oldest distillery of rums in the Dominican Republic. It was founded in 1852. With Barceló and Brugal, the company dominates the Dominican rum production. Bermúdez has its distillery in Santiago de los Caballeros.
References
Brands of the Dominican Republic
Di... | Bermúdez (rum) | Chemistry | 99 |
4,515,786 | https://en.wikipedia.org/wiki/Probe%20effect | Probe effect is an unintended alteration in system behavior caused by measuring that system. In code profiling and performance measurements, the delays introduced by insertion or removal of code instrumentation may result in a non-functioning application, or unpredictable behavior.
Examples
In electronics, by attachin... | Probe effect | Engineering | 248 |
34,255,844 | https://en.wikipedia.org/wiki/Cheshire%20eyepiece | A Cheshire eyepiece or Cheshire collimator is a simple tool that helps aligning the optical axes of the mirrors or lenses of a telescope, a process called collimation. It consists of a peephole to be inserted into the focuser in place of the eyepiece. Through a lateral opening, ambient light falls on the brightly paint... | Cheshire eyepiece | Materials_science,Engineering | 240 |
69,451,773 | https://en.wikipedia.org/wiki/Insects%20in%20Japanese%20culture | Within Japanese culture, insects have occupied an important role as aesthetic, allegorical, and symbolic objects. In addition, insects have had a historical importance within the context of the culture and art of Japan.
Kenta Takada, longhorn beetle collector and author, noted that the Japanese appreciation for insect... | Insects in Japanese culture | Biology,Environmental_science | 2,642 |
37,672,033 | https://en.wikipedia.org/wiki/Alexander%20Gettler | Alexander Oscar Gettler (August 13, 1883 – August 4, 1968) was a toxicologist with the Office of Chief Medical Examiner of the City of New York (OCME) between 1918 and 1959, and the first forensic chemist to be employed in this capacity by a U.S. city. His work at OCME with Charles Norris, the chief medical examiner, c... | Alexander Gettler | Chemistry | 788 |
25,705,749 | https://en.wikipedia.org/wiki/Canadian%20Science%20and%20Engineering%20Hall%20of%20Fame | The Canadian Science and Engineering Hall of Fame, was located at the Canada Science and Technology Museum in Ottawa, Ontario, honoured Canadians who have made outstanding contributions to society in science and engineering. It also promoted role models to encourage young Canadians to pursue careers in science, enginee... | Canadian Science and Engineering Hall of Fame | Technology | 936 |
43,692,331 | https://en.wikipedia.org/wiki/North%20Pacific%20Marine%20Science%20Organization | The North Pacific Marine Science Organization, (referring to the organization's status as a Pacific version of the International Council for the Exploration of the Sea), is an intergovernmental organization that promotes and coordinates marine scientific research in the North Pacific Ocean and provides a mechanism for ... | North Pacific Marine Science Organization | Biology | 2,526 |
35,176,060 | https://en.wikipedia.org/wiki/Kervaire%20semi-characteristic | In mathematics, the Kervaire semi-characteristic, introduced by , is an invariant of closed manifolds M of dimension taking values in , given by
where F is a field.
showed that the Kervaire semi-characteristic of a differentiable manifold is given by the index of a skew-adjoint elliptic operator.
Assuming M is... | Kervaire semi-characteristic | Mathematics | 107 |
66,826,136 | https://en.wikipedia.org/wiki/Catherine%20McCammon | Catherine Ann McCammon is a Canadian geoscientist who is employed by the University of Bayreuth. Her research focuses on surface and mantle processes, as well as the physics and chemistry of minerals. She is a Fellow of the European Association of Geochemistry and American Geophysical Union. In 2013, she was awarded th... | Catherine McCammon | Chemistry | 594 |
31,687,977 | https://en.wikipedia.org/wiki/Thioenol | In organic chemistry, thioenols (also known as alkenethiols) are alkenes with a thiol group () affixed to one of the carbon atoms composing the double bond (i.e. ). They are the sulfur analogs of enols (hence the thio- prefix). Alkenes with a thiol group on both atoms of the double bond are called enedithiols. Deproton... | Thioenol | Chemistry | 152 |
71,775,593 | https://en.wikipedia.org/wiki/Resilience%20engineering | Resilience engineering is a subfield of safety science research that focuses on understanding how complex adaptive systems cope when encountering a surprise. The term resilience in this context refers to the capabilities that a system must possess in order to deal effectively with unanticipated events. Resilience engin... | Resilience engineering | Engineering | 1,966 |
9,563,728 | https://en.wikipedia.org/wiki/Rudolf%20Luneburg | Rudolf Karl Lüneburg (30 March 1903, Volkersheim (Bockenem) - 19 August 1949, Great Falls, Montana), after his emigration at first Lueneburg, later Luneburg, sometimes misspelled Luneberg or Lunenberg) was a professor of mathematics and optics at the Dartmouth College Eye Institute. He was born in Germany, received his... | Rudolf Luneburg | Mathematics | 205 |
2,903,793 | https://en.wikipedia.org/wiki/Theta%20Cancri | Theta Cancri, Latinised from θ Cancri, is a multiple star system in the zodiac constellation of Cancer. It is visible to the naked eye as a dim point of light with an apparent visual magnitude of +5.32. The system is located at a distance of approximately 450 light-years away from the Sun, based on parallax, and is dri... | Theta Cancri | Astronomy | 288 |
45,517,747 | https://en.wikipedia.org/wiki/GR-196%2C429 | GR-196,429 is a melatonin receptor agonist with some selectivity for the MT1 subtype. It was one of the first synthetic melatonin agonists developed and continues to be used in scientific research, though it has never been developed for medical use. Studies in mice have shown GR-196,429 to produce both sleep-promoting ... | GR-196,429 | Chemistry | 105 |
14,458,673 | https://en.wikipedia.org/wiki/Rudiviridae | Rudiviridae is a family of viruses with linear double stranded DNA genomes that infect archaea. The viruses of this family are highly thermostable and can act as a template for site-selective and spatially controlled chemical modification. Furthermore, the two strands of the DNA are covalently linked at both ends of th... | Rudiviridae | Biology | 138 |
24,958,527 | https://en.wikipedia.org/wiki/Group%20testing | In statistics and combinatorial mathematics, group testing is any procedure that breaks up the task of identifying certain objects into tests on groups of items, rather than on individual ones. First studied by Robert Dorfman in 1943, group testing is a relatively new field of applied mathematics that can be applied to... | Group testing | Mathematics | 7,649 |
9,904,516 | https://en.wikipedia.org/wiki/Tin%20can%20wall | A tin can wall is a wall constructed from tin cans, which are not a common building source. The cans can be laid in concrete, stacked vertically on top of each other, and crushed or cut and flattened to be used as shingles. They can also be used for furniture.
Tin cans can form the actual fill-in structure (or walls... | Tin can wall | Engineering | 2,057 |
19,600,416 | https://en.wikipedia.org/wiki/Isotope | Isotopes are distinct nuclear species (or nuclides) of the same chemical element. They have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), but different nucleon numbers (mass numbers) due to different numbers of neutrons in ... | Isotope | Physics,Chemistry | 6,506 |
59,525,996 | https://en.wikipedia.org/wiki/4%2C4%E2%80%B2-%28Hexafluoroisopropylidene%29diphthalic%20anhydride | 4,4′-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA) is an aromatic organofluorine compound and the dianhydride of 4,4′-(hexafluoroisopropylidene)bisphthalic acid (name derived from phthalic acid).
Synthesis
The raw materials for 6FDA are hexafluoroacetone and orthoxylene. With hydrogen fluoride as a catalyst, ... | 4,4′-(Hexafluoroisopropylidene)diphthalic anhydride | Chemistry,Materials_science | 373 |
371,575 | https://en.wikipedia.org/wiki/Lebkuchen | (), or () are honey-sweetened German cakes, moulded cookies or bar cookies that have become part of Germany's Christmas traditions. They are similar to gingerbread.
Etymology
The etymology of Leb- in the term is uncertain. Proposed derivations include: from the Latin (flat bread), from the Germanic word Laib (loa... | Lebkuchen | Biology | 999 |
44,535,475 | https://en.wikipedia.org/wiki/Archernis%20fulvalis%20Hampson%2C%201913 | Archernis fulvalis is a moth in the family Crambidae. It was described by George Hampson in 1913. It is found in French Polynesia, where it has been recorded from the Society Islands.
Taxonomy
The name Archernis fulvalis is preoccupied by Archernis fulvalis described by Hampson in 1899.
References
Spilomelinae
Moths... | Archernis fulvalis Hampson, 1913 | Biology | 88 |
2,581,209 | https://en.wikipedia.org/wiki/Sensory%20analysis | Sensory analysis (or sensory evaluation) is a scientific discipline that applies principles of experimental design and statistical analysis to the use of human senses (sight, smell, taste, touch and hearing) for the purposes of evaluating consumer products. This method of testing products is generally used during the m... | Sensory analysis | Physics | 745 |
44,856,539 | https://en.wikipedia.org/wiki/Non%20linear%20piezoelectric%20effects%20in%20polar%20semiconductors | Non linear piezoelectric effects in polar semiconductors are the manifestation that the strain induced piezoelectric polarization depends not just on the product of the first order piezoelectric coefficients times the strain tensor components but also on the product of the second order (or higher) piezoelectric coeffic... | Non linear piezoelectric effects in polar semiconductors | Physics,Chemistry,Materials_science,Engineering | 798 |
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