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Aerodynamic heating is the heating of a solid body produced by its high-speed passage through air. In science and engineering, an understanding of aerodynamic heating is necessary for predicting the behaviour of meteoroids which enter the Earth's atmosphere, to ensure spacecraft safely survive atmospheric reentry , and... | https://en.wikipedia.org/wiki/Aerodynamic_heating |
In fluid dynamics , aerodynamic potential flow codes or panel codes are used to determine the fluid velocity, and subsequently the pressure distribution, on an object. This may be a simple two-dimensional object, such as a circle or wing, or it may be a three-dimensional vehicle.
A series of singularities as sources,... | https://en.wikipedia.org/wiki/Aerodynamic_potential-flow_code |
Aerodynamics ( Ancient Greek : ἀήρ aero (air) + Ancient Greek : δυναμική (dynamics)) is the study of the motion of air , particularly when affected by a solid object, such as an airplane wing. [ 1 ] It involves topics covered in the field of fluid dynamics and its subfield of gas dynamics , and is an important domain o... | https://en.wikipedia.org/wiki/Aerodynamics |
Aeroecology is the discipline for studying how airborne life forms utilize and interact with other biotic and abiotic components of the atmosphere. [ 1 ] [ 2 ] The aerosphere is viewed as habitat [ 3 ] and the way that organisms respond to and take advantage of the dynamic aeroscape has relevance to the ecology, evolut... | https://en.wikipedia.org/wiki/Aeroecology |
Aeroelasticity is the branch of physics and engineering studying the interactions between the inertial , elastic , and aerodynamic forces occurring while an elastic body is exposed to a fluid flow. The study of aeroelasticity may be broadly classified into two fields: static aeroelasticity dealing with the static or st... | https://en.wikipedia.org/wiki/Aeroelasticity |
Aerographite is a synthetic foam consisting of a porous interconnected network of tubular carbon. With a density of 180 g/m 3 it is one of the lightest structural materials ever created. It was developed jointly by a team of researchers at the University of Kiel and the Technical University of Hamburg in Germany, and w... | https://en.wikipedia.org/wiki/Aerographite |
Aerolite is a urea-formaldehyde gap filling adhesive which is water- and heat-resistant. It is used in large quantities by the chipboard industry and also by wooden boat builders for its high strength and durability. It is also used in joinery , veneering and general woodwork assembly. Aerolite has also been used for w... | https://en.wikipedia.org/wiki/Aerolite_(adhesive) |
An aerometer is an instrument designed to measure the density (among other parameters) of the air and some gases. [ 1 ] [ 2 ]
The word aerometer (or Ärometer, from Ancient Greek ἀήρ -aer " air " and μέτρον -métron "measure, scale") refers to various types of devices for measuring or handling of gases. The instruments ... | https://en.wikipedia.org/wiki/Aerometer |
The Aeronautical Institute of Bangladesh ( Bengali : এ্যারোনটিকাল ইন্সটিটিউট অব বাংলাদেশ , lit. 'Aeronautical Institute of Bangladesh') or AIB is an aviation school in Bangladesh . AIB is the first private aeronautical institute in Bangladesh. The institute is under the Civil Aviation Authority of Bangladesh [ 2 ] and ... | https://en.wikipedia.org/wiki/Aeronautical_Institute_of_Bangladesh |
Aeronautical Society of India (AeSI) is the principal Society in India serving the professions in areas of aeronautics , aerospace and aviation . Its stated primary purpose is to "advance the sciences, engineering, technology and management of aerospace, aeronautics and aviation and to foster and promote the profession... | https://en.wikipedia.org/wiki/Aeronautical_Society_of_India |
The Aeronautical Systems Center ( ASC ) was a U.S. Air Force product center that designed, developed and delivered aviation weapon systems and capabilities. It developed systems for the U.S. Air Force , other U.S. Department of Defense customers, allied, and coalition/partner/client forces. The ASC and its predecessors... | https://en.wikipedia.org/wiki/Aeronautical_Systems_Center |
The Aeronautical Telecommunication Network [ 1 ] (ATN) is an internetwork architecture that allows ground/ground, air/ground, and avionic data subnetworks to interoperate by adopting common interface services and protocols based on the ISO OSI Reference Model.
Aviation messages like OpMet data exchange is required to ... | https://en.wikipedia.org/wiki/Aeronautical_Telecommunication_Network |
This unit was born in 1986 from the Center of Studies and Research on Aeronautical Medicine . It is part of ITAF ’s Division for studies and research and is located in the ITAF Base at Pratica di Mare , near Rome . Its three branches (General pathology, Hygiene and immunology, Psycho physiology) achieved success in res... | https://en.wikipedia.org/wiki/Aeronautical_and_Space_Medicine_Unit |
The Aeronautics Research Mission Directorate ( ARMD ) is one of five mission directorates within NASA , the other four being the Exploration Systems Development Mission Directorate, the Space Operations Mission Directorate, the Science Mission Directorate , and the Space Technology Mission Directorate. [ 1 ] The ARMD i... | https://en.wikipedia.org/wiki/Aeronautics_Research_Mission_Directorate |
Aeronomy is the scientific study of the upper atmosphere of the Earth and corresponding regions of the atmospheres of other planets. It is a branch of both atmospheric chemistry and atmospheric physics . Scientists specializing in aeronomy, known as aeronomers , study the motions and chemical composition and properties... | https://en.wikipedia.org/wiki/Aeronomy |
Aeroplankton (or aerial plankton ) are tiny lifeforms that float and drift in the air, carried by wind . Most of the living things that make up aeroplankton are very small to microscopic in size, and many can be difficult to identify because of their tiny size. Scientists collect them for study in traps and sweep nets ... | https://en.wikipedia.org/wiki/Aeroplankton |
An aerosol is a suspension of fine solid particles or liquid droplets in air or another gas . [ 1 ] Aerosols can be generated from natural or human causes . The term aerosol commonly refers to the mixture of particulates in air, and not to the particulate matter alone. [ 2 ] Examples of natural aerosols are fog , mist ... | https://en.wikipedia.org/wiki/Aerosol |
Aerospace architecture is broadly defined to encompass architectural design of non-habitable and habitable structures and living and working environments in aerospace -related facilities, habitats, and vehicles. These environments include, but are not limited to: science platform aircraft and aircraft-deployable system... | https://en.wikipedia.org/wiki/Aerospace_architecture |
Aerospace bearings are the bearings installed in aircraft and aerospace systems including commercial, private, military, or space applications.
Materials include M50 tool steel (AMS6491), carbon chrome steel (AMS6444), the corrosion resistant AMS5930, 440C stainless steel, silicon nitride (ceramic) and titanium carbid... | https://en.wikipedia.org/wiki/Aerospace_bearing |
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft . [ 3 ] It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is similar, but deals with the electronics side of aerospace engineering.
"... | https://en.wikipedia.org/wiki/Aerospace_engineering |
An aerospace manufacturer is a company or individual involved in the various aspects of designing , building, testing, selling, and maintaining aircraft , aircraft parts , missiles , rockets , or spacecraft . Aerospace is a high technology industry.
The aircraft industry is the industry supporting aviation by building... | https://en.wikipedia.org/wiki/Aerospace_manufacturer |
Aerospace materials are materials, frequently metal alloys , that have either been developed for, or have come to prominence through their use for aerospace purposes.
These uses often require exceptional performance, strength or heat resistance, even at the cost of considerable expense in their production or machining... | https://en.wikipedia.org/wiki/Aerospace_materials |
Aerospace physiology is the study of the effects of high altitudes on the body, such as different pressures and levels of oxygen. At different altitudes the body may react in different ways, provoking more cardiac output , and producing more erythrocytes . These changes cause more energy waste in the body, causing musc... | https://en.wikipedia.org/wiki/Aerospace_physiology |
An aerostructure is a component of an aircraft 's airframe. This may include all or part of the fuselage , wings , or flight control surfaces. Companies that specialize in constructing these components are referred to as "aerostructures manufacturers", though many larger aerospace firms with a more diversified product ... | https://en.wikipedia.org/wiki/Aerostructure |
Aerotolerant anaerobes use fermentation to produce ATP . They do not use oxygen , but they can protect themselves from reactive oxygen molecules. In contrast, obligate anaerobes can be harmed by reactive oxygen molecules. [ citation needed ]
There are three categories of anaerobes . Where obligate aerobes require oxyg... | https://en.wikipedia.org/wiki/Aerotolerant_anaerobe |
The Aerotoxic Association was founded on 18 June 2007, at the British Houses of Parliament by former BAe 146 Training Captain John Hoyte, [ 1 ] to raise public awareness about the ill health allegedly caused after exposure to airliner cabin air that he claimed been contaminated to toxic levels, by engine oil leaking in... | https://en.wikipedia.org/wiki/Aerotoxic_Association |
According to ancient and medieval science , aether ( / ˈ iː θ ər / , alternative spellings include æther , aither , and ether ), also known as the fifth element or quintessence , is the material that fills the region of the universe beyond the terrestrial sphere . [ 1 ] The concept of aether was used in several theorie... | https://en.wikipedia.org/wiki/Aether_(classical_element) |
In the magical tradition of Europe and the Near East (see: Magic in the Greco-Roman world ), the aetites (singular in Latin ) or aetite ( anglicized ) is a stone used to promote childbirth . It is also called an eagle-stone , [ 1 ] aquiline , or aquilaeus . The stone is said to prevent spontaneous abortion and prematur... | https://en.wikipedia.org/wiki/Aetites |
In scholastic philosophy , the aevum (also called aeviternity ) is the temporal mode of existence experienced by angels and by the saints in heaven . In some ways, it is a state that logically lies between the eternity (timelessness) of God and the temporal experience of material beings . It is sometimes referred to as... | https://en.wikipedia.org/wiki/Aevum |
The affect heuristic is a heuristic , a mental shortcut that allows people to make decisions and solve problems quickly and efficiently, in which current emotion — fear , pleasure , surprise , etc.—influences decisions. In other words, it is a type of heuristic in which emotional response, or " affect " in psychologica... | https://en.wikipedia.org/wiki/Affect_heuristic |
Affective design describes the design of products, services, and user interfaces that aim to evoke intended emotional responses from consumers, ultimately improving customer satisfaction. [ 1 ] It is often regarded within the domain of technology interaction and computing, in which emotional information is communicated... | https://en.wikipedia.org/wiki/Affective_design |
Let W {\displaystyle W} be the Weyl group of a semisimple Lie algebra g {\displaystyle {\mathfrak {g}}} (associate to fixed choice of a Cartan subalgebra h {\displaystyle {\mathfrak {h}}} ). Assume that a set of simple roots in h ∗ {\displaystyle {\mathfrak {h}}^{*}} is chosen.
The affine action (also called the dot ... | https://en.wikipedia.org/wiki/Affine_action |
In geometry , an affine plane is a two-dimensional affine space .
There are two ways to formally define affine planes, which are equivalent for affine planes over a field.
The first way consists in defining an affine plane as a set on which a vector space of dimension two acts simply transitively . Intuitively, this ... | https://en.wikipedia.org/wiki/Affine_plane |
In geometry , an affine plane is a system of points and lines that satisfy the following axioms: [ 1 ]
In an affine plane, two lines are called parallel if they are equal or disjoint . Using this definition, Playfair's axiom above can be replaced by: [ 2 ]
Parallelism is an equivalence relation on the lines of an aff... | https://en.wikipedia.org/wiki/Affine_plane_(incidence_geometry) |
In mathematics , an affine representation of a topological Lie group G on an affine space A is a continuous ( smooth ) group homomorphism from G to the automorphism group of A , the affine group Aff( A ). Similarly, an affine representation of a Lie algebra g on A is a Lie algebra homomorphism from g to the Lie algebra... | https://en.wikipedia.org/wiki/Affine_representation |
In mathematics , an affine space is a geometric structure that generalizes some of the properties of Euclidean spaces in such a way that these are independent of the concepts of distance and measure of angles , keeping only the properties related to parallelism and ratio of lengths for parallel line segments . Affine s... | https://en.wikipedia.org/wiki/Affine_space |
In Euclidean geometry , an affine transformation or affinity (from the Latin, affinis , "connected with") is a geometric transformation that preserves lines and parallelism , but not necessarily Euclidean distances and angles .
More generally, an affine transformation is an automorphism of an affine space (Euclidean s... | https://en.wikipedia.org/wiki/Affine_transformation |
Affinine is a monoterpenoid indole alkaloid which can be isolated from plants of the genus Tabernaemontana . [ 1 ] [ 2 ] Structurally it can be considered a member of the vobasine alkaloid family and may be synthesized from tryptophan . [ 3 ] Limited pharmacological testing has indicated that it may be an effective inh... | https://en.wikipedia.org/wiki/Affinine |
Affinity capture is a technique in molecular biology used to isolate desired compounds based on their chemical properties and a solid substrate. [ 1 ] Commonly, plates out of solid materials such as glass are coated with various reagents to allow for covalent bonding of a capturing molecule such as an antibody . Afterw... | https://en.wikipedia.org/wiki/Affinity_capture |
Affinity chromatography is a method of separating a biomolecule from a mixture, based on a highly specific macromolecular binding interaction between the biomolecule and another substance. The specific type of binding interaction depends on the biomolecule of interest; antigen and antibody , enzyme and substrate , rec... | https://en.wikipedia.org/wiki/Affinity_chromatography |
Affinity electrophoresis is a general name for many analytical methods used in biochemistry and biotechnology . Both qualitative and quantitative information may be obtained through affinity electrophoresis. [ 1 ] Cross electrophoresis, the first affinity electrophoresis method, was created by Nakamura et al. Enzyme-su... | https://en.wikipedia.org/wiki/Affinity_electrophoresis |
The affinity laws (also known as the "Fan Laws" or "Pump Laws") for pumps/fans are used in hydraulics , hydronics and/or HVAC to express the relationship between variables involved in pump or fan performance (such as head , volumetric flow rate , shaft speed) and power . They apply to pumps , fans , and hydraulic turbi... | https://en.wikipedia.org/wiki/Affinity_laws |
Affinitymagnetic separation (AMS) is a laboratory tool that can efficiently isolate bacterial cells out of body fluid or cultured cells. It can also be used as a method of quantifying the pathogenicity of food, blood or feces. Another laboratory separation tool is the immunomagnetic separation (IMS), which is more suit... | https://en.wikipedia.org/wiki/Affinity_magnetic_separation |
In immunology , affinity maturation is the process by which T FH cell -activated B cells produce antibodies with increased affinity for antigen during the course of an immune response. With repeated exposures to the same antigen, a host will produce antibodies of successively greater affinities . A secondary response ... | https://en.wikipedia.org/wiki/Affinity_maturation |
In propositional logic , affirming the consequent (also known as converse error , fallacy of the converse , or confusion of necessity and sufficiency ) is a formal fallacy (or an invalid form of argument) that is committed when, in the context of an indicative conditional statement, it is stated that because the conseq... | https://en.wikipedia.org/wiki/Affirming_the_consequent |
Affymetrix is now Applied Biosystems, a brand of DNA microarray products sold by Thermo Fisher Scientific that originated with an American biotechnology research and development and manufacturing company of the same name. [ 4 ] The Santa Clara, California -based Affymetrix, Inc. now a part of Thermo Fisher Scientific w... | https://en.wikipedia.org/wiki/Affymetrix |
The Afghan Girls Robotics Team , also known as the Afghan Dreamers , [ 1 ] [ 2 ] is an all-girl robotics team from Herat , Afghanistan, founded through the Digital Citizen Fund (DCF) in 2017 by Roya Mahboob and Alireza Mehraban. It is made up of girls between ages 12 and 18 and their mentors. Several members of the tea... | https://en.wikipedia.org/wiki/Afghan_Girls_Robotics_Team |
Aflatoxin B 1 is an aflatoxin produced by Aspergillus flavus and A. parasiticus . It is a very potent carcinogen with a TD 50 3.2 μg/kg/day in rats. [ 4 ] This carcinogenic potency varies across species with some, such as rats and monkeys, seemingly much more susceptible than others. [ 5 ] [ 6 ] Aflatoxin B 1 is a comm... | https://en.wikipedia.org/wiki/Aflatoxin_B1 |
Aflatoxin total synthesis concerns the total synthesis of a group of organic compounds called aflatoxins . These compounds occur naturally in several fungi . As with other chemical compound targets in organic chemistry , the organic synthesis of aflatoxins serves various purposes. Traditionally it served to prove the s... | https://en.wikipedia.org/wiki/Aflatoxin_total_synthesis |
Afovirsen is an oligonucleotide capable of antisense interactions with mRNA of human papillomavirus . It has been investigated as a tool for diagnostics and therapeutics. [ 1 ] [ 2 ]
Afovirsen consists of a sequence of 20 nucleic acids
ttgcttccat cttcctcgtc
This organic chemistry article is a stub . You can help Wik... | https://en.wikipedia.org/wiki/Afovirsen |
The African BioGenome Project , or AfricaBP , is an international effort to sequence the genomes of all animals , all plants , all fungi , and all protists (and so, collectively, all eukaryotes ) that are native to Africa [ 1 ] at an estimated cost of $1 billion U.S. dollars . [ 2 ] The project prioritizes doing its se... | https://en.wikipedia.org/wiki/African_BioGenome_Project |
The African Biosafety Network of Expertise describes a continental network hosted by Ouagadougou , Burkina Faso .
The African Biosafety Network of Expertise was launched on 23 February 2010 with the signing of a host agreement between the New Partnership for Africa's Development (NEPAD) and the Government of Burkina F... | https://en.wikipedia.org/wiki/African_Biosafety_Network_of_Expertise |
The African Journal of Aquatic Science is a peer-reviewed scientific journal covering research in the aquatic sciences in Africa. It was established in 1975 as Journal of the Limnological Society of Southern Africa and renamed in 1989 as the Southern African Journal of Aquatic Sciences , before obtaining its current na... | https://en.wikipedia.org/wiki/African_Journal_of_Aquatic_Science |
African village dogs are dogs found in Africa that are directly descended from an ancestral pool of indigenous dogs. [ 1 ] African village dogs became the close companion of people in Africa, beginning in North Africa and spreading south. [ 2 ]
The oldest dog remains to be found in Africa date 5,900 years before prese... | https://en.wikipedia.org/wiki/African_village_dog |
The Afroinsectiphilia (African insectivores ) is a clade that has been proposed based on the results of recent molecular phylogenetic studies. [ 1 ] Many of the taxa within it were once regarded as part of the order Insectivora , but Insectivora is now considered to be polyphyletic and obsolete. This proposed classific... | https://en.wikipedia.org/wiki/Afroinsectiphilia |
The Afrotropical realm is one of the Earth's eight biogeographic realms . It includes Sub-Saharan Africa , the southern Arabian Peninsula , the island of Madagascar , and the islands of the western Indian Ocean . [ 1 ] It was formerly known as the Ethiopian Zone or Ethiopian Region .
Most of the Afrotropical realm, ex... | https://en.wikipedia.org/wiki/Afrotropical_realm |
After-rust is a form of rust which sometimes develops on a non-ferrous metal surface when that surface has been finished, deburred, or cleaned with a carbon steel brush or steel wool . It is caused by microscopic deposits of the steel which become embedded in the metal surface and which over time begin to oxidize. Th... | https://en.wikipedia.org/wiki/After-rust |
An intercooler is a heat exchanger used to cool a gas after compression. [ 1 ] Often found in turbocharged engines, intercoolers are also used in air compressors , air conditioners , refrigeration and gas turbines .
Most commonly used with turbocharged engines, an intercooler is used to counteract the heat of compress... | https://en.wikipedia.org/wiki/Aftercooler |
Afterhyperpolarization , or AHP , is the hyperpolarizing phase of a neuron's action potential where the cell's membrane potential falls below the normal resting potential . This is also commonly referred to as an action potential's undershoot phase . AHPs have been segregated into "fast", "medium", and "slow" componen... | https://en.wikipedia.org/wiki/Afterhyperpolarization |
Silver acetylide is an inorganic chemical compound with the formula Ag 2 C 2 , a metal acetylide . The compound can be regarded as a silver salt of the weak acid , acetylene . The salt's anion consists of two carbon atoms linked by a triple bond , thus, its structure is [Ag + ] 2 [ − C≡C − ] . The alternate name "silve... | https://en.wikipedia.org/wiki/Ag2C2 |
Silver fulminate (AgCNO) is the highly explosive silver salt of fulminic acid .
Silver fulminate is a primary explosive , but has limited use as such due to its extreme sensitivity to impact, heat, pressure, and electricity. The compound becomes progressively sensitive as it is aggregated, even in small amounts; the t... | https://en.wikipedia.org/wiki/Ag2C2N2O2 |
Silver oxalate ( Ag 2 C 2 O 4 ) is a silver salt of oxalic acid commonly employed in experimental petrology to add carbon dioxide ( CO 2 ) to experiments as it will break down to silver (Ag) and carbon dioxide under geologic conditions. [ 2 ] It is also a precursor to the production of silver nanoparticles .
It is expl... | https://en.wikipedia.org/wiki/Ag2C2O4 |
Silver carbonate is the chemical compound with the formula Ag 2 C O 3 . This salt is yellow but typical samples are grayish due to the presence of elemental silver . It is poorly soluble in water, like most transition metal carbonates .
Silver carbonate can be prepared by combining aqueous solutions of sodium carbonat... | https://en.wikipedia.org/wiki/Ag2CO3 |
Silver dichromate is a chemical compound with the formula Ag 2 Cr 2 O 7 . It is insoluble in water and decomposes when treated with hot water. Its anion has a charge of -2.
Related complexes are used as oxidants in organic chemistry . [ 1 ] For instance, tetrakis(pyridine)silver dichromate, [Ag 2 (py) 4 ] 2+ [Cr 2 O 7... | https://en.wikipedia.org/wiki/Ag2Cr2O7 |
Silver chromate is an inorganic compound with formula Ag 2 CrO 4 which appears as distinctively coloured brown-red crystals. The compound is insoluble and its precipitation is indicative of the reaction between soluble chromate and silver precursor salts (commonly potassium / sodium chromate with silver nitrate ). [ 5 ... | https://en.wikipedia.org/wiki/Ag2CrO4 |
Silver subfluoride is the inorganic compound with the formula Ag 2 F. This is an unusual example of a compound where the oxidation state of silver is fractional. The compound is produced by the reaction of silver and silver(I) fluoride : [ 1 ]
It forms small crystals with a bronze reflex and is a good conductor of ele... | https://en.wikipedia.org/wiki/Ag2F |
Silver molybdate (Ag 2 MoO 4 ), a chemical compound , is a yellow, cubic crystalline substance often used in glass. Its crystals present two types of electronic structure, depending on the pressure conditions to which the crystal is subjected. [ 1 ] At room temperature, Ag 2 MoO 4 exhibits a spinel-type cubic structure... | https://en.wikipedia.org/wiki/Ag2MoO4 |
Silver oxide is the chemical compound with the formula Ag 2 O . It is a fine black or dark brown powder that is used to prepare other silver compounds.
Silver oxide can be prepared by combining aqueous solutions of silver nitrate and an alkali hydroxide . [ 8 ] [ 9 ] This reaction does not afford appreciable amounts ... | https://en.wikipedia.org/wiki/Ag2O |
Silver sulfide is an inorganic compound with the formula Ag 2 S . A dense black solid, it is the only sulfide of silver . It is useful as a photosensitizer in photography . It constitutes the tarnish that forms over time on silverware and other silver objects. Silver sulfide is insoluble in most solvents, but is degra... | https://en.wikipedia.org/wiki/Ag2S |
Silver sulfite is the chemical compound with the formula Ag 2 SO 3 . This unstable silver compound when heated and/or in light it decomposes to silver dithionate and silver sulfate . [ 3 ]
Silver sulfite can be prepared by dissolving silver nitrate with the stoichiometric quantity of sodium sulfite solution, yielding ... | https://en.wikipedia.org/wiki/Ag2SO3 |
Silver sulfate is the inorganic compound with the formula Ag 2 S O 4 . It is a white solid with low solubility in water.
Silver sulfate precipitates when an aqueous solution of silver nitrate is treated with sulfuric acid :
It is purified by recrystallization from concentrated sulfuric acid, a step that expels trace... | https://en.wikipedia.org/wiki/Ag2SO4 |
Silver selenide (Ag 2 Se) is the reaction product formed when selenium toning analog silver gelatine photo papers in photographic print toning . The selenium toner contains sodium selenite (Na 2 SeO 3 ) as one of its active ingredients, which is the source of the selenide (Se 2− ) anion combining with the silver in the... | https://en.wikipedia.org/wiki/Ag2Se |
Silver selenite is an inorganic compound of formula Ag 2 SeO 3 .
Silver selenite is formed during the recovery of selenium from copper anode slimes when they are subjected to oxidative roasting, causing some silver selenide to be converted to the selenite. It can also be prepared by a precipitation reaction between si... | https://en.wikipedia.org/wiki/Ag2SeO3 |
Silver telluride (Ag 2 Te) is a chemical compound, a telluride of silver , also known as disilver telluride or silver(I) telluride. It forms a monoclinic crystal. In a wider sense, silver telluride can be used to denote AgTe (silver(II) telluride, a metastable compound) or Ag 5 Te 3 .
Silver(I) telluride occurs natura... | https://en.wikipedia.org/wiki/Ag2Te |
Silver nitride is an explosive chemical compound with symbol Ag 3 N. It is a black, metallic-looking [ 3 ] solid which is formed when silver oxide or silver nitrate [ 4 ] is dissolved in concentrated solutions of ammonia , causing formation of the diammine silver complex which subsequently breaks down to Ag 3 N. The st... | https://en.wikipedia.org/wiki/Ag3N |
Silver phosphate or silver orthophosphate is a light sensitive, yellow, water-insoluble chemical compound composed of silver and phosphate ions of formula Ag 3 P O 4 .
Silver phosphate is formed as a yellow solid precipitate by the reaction between a soluble silver salt, such as silver nitrate , with a soluble orthoph... | https://en.wikipedia.org/wiki/Ag3PO4 |
Silver phosphate or silver orthophosphate is a light sensitive, yellow, water-insoluble chemical compound composed of silver and phosphate ions of formula Ag 3 P O 4 .
Silver phosphate is formed as a yellow solid precipitate by the reaction between a soluble silver salt, such as silver nitrate , with a soluble orthoph... | https://en.wikipedia.org/wiki/Ag4P2O7 |
Silver acetate is a coordination compound with the empirical formula CH 3 CO 2 Ag (or AgC 2 H 3 O 2 ). A photosensitive , white, crystalline solid, it is a useful reagent in the laboratory as a source of silver ions lacking an oxidizing anion.
Silver acetate can be synthesized by the reaction of acetic acid and silver... | https://en.wikipedia.org/wiki/AgC2H3O2 |
Silver fulminate (AgCNO) is the highly explosive silver salt of fulminic acid .
Silver fulminate is a primary explosive , but has limited use as such due to its extreme sensitivity to impact, heat, pressure, and electricity. The compound becomes progressively sensitive as it is aggregated, even in small amounts; the t... | https://en.wikipedia.org/wiki/AgCNO |
Silver chlorate is an inorganic compound with molecular formula AgClO 3 . It forms white tetragonal crystals. [ 1 ] [ 2 ] Like all chlorates, it is water-soluble and an oxidizing agent. As a simple metal salt, it is a common chemical in basic inorganic chemistry experiments. It is light-sensitive, so it must be stored ... | https://en.wikipedia.org/wiki/AgClO3 |
Silver perchlorate is the chemical compound with the formula AgClO 4 . This white solid forms a monohydrate and is mildly deliquescent . It is a useful source of the Ag + ion, although the presence of perchlorate presents risks. It is used as a catalyst in organic chemistry.
Silver perchlorate is created by heating ... | https://en.wikipedia.org/wiki/AgClO4 |
Silver(II) fluoride is a chemical compound with the formula AgF 2 . It is a rare example of a silver(II) compound - silver usually exists in its +1 oxidation state . It is used as a fluorinating agent.
AgF 2 can be synthesized by fluorinating Ag 2 O with elemental fluorine . Also, at 200 °C (473 K) elemental fluori... | https://en.wikipedia.org/wiki/AgF2 |
Silver iodate (AgIO 3 ) is a light-sensitive, white crystal composed of silver , iodine and oxygen . Unlike most metal iodates, it is practically insoluble in water.
Silver iodate can be obtained by reacting silver nitrate (AgNO 3 ) with sodium iodate or potassium iodate. The by-product of the reaction is sodium nitra... | https://en.wikipedia.org/wiki/AgIO3 |
Silver azide is the chemical compound with the formula AgN 3 . It is a silver (I) salt of hydrazoic acid . It forms a colorless crystals. Like most azides, it is a primary explosive .
Silver azide can be prepared by treating an aqueous solution of silver nitrate with sodium azide . [ 2 ] The silver azide precipitates ... | https://en.wikipedia.org/wiki/AgN3 |
Silver nitrite is an inorganic compound with the formula AgNO 2 . [ 2 ]
Silver nitrite has many applications. Notable examples include:
Silver nitrite is produced from the reaction between silver nitrate and an alkali nitrite, such as sodium nitrite . [ 3 ] Silver nitrite is much less soluble in water than silver nit... | https://en.wikipedia.org/wiki/AgNO2 |
Silver nitrate is an inorganic compound with chemical formula AgNO 3 . It is a versatile precursor to many other silver compounds, such as those used in photography . It is far less sensitive to light than the halides . [ citation needed ] It was once called lunar caustic because silver was called luna by ancient alche... | https://en.wikipedia.org/wiki/AgNO3 |
Silver phosphate or silver orthophosphate is a light sensitive, yellow, water-insoluble chemical compound composed of silver and phosphate ions of formula Ag 3 P O 4 .
Silver phosphate is formed as a yellow solid precipitate by the reaction between a soluble silver salt, such as silver nitrate , with a soluble orthoph... | https://en.wikipedia.org/wiki/AgPO3 |
Silver sulfate is the inorganic compound with the formula Ag 2 S O 4 . It is a white solid with low solubility in water.
Silver sulfate precipitates when an aqueous solution of silver nitrate is treated with sulfuric acid :
It is purified by recrystallization from concentrated sulfuric acid, a step that expels trace... | https://en.wikipedia.org/wiki/AgSO4 |
Agamassan is a porous substrate used to safely absorb acetylene and thus allow the transport, storage and commercial use of the otherwise unstable gas. It was developed and patented by the Swedish Nobel Laureate and industrialist Gustaf Dalén . Dalén was prominent in developing applications for acetylene.
Acetylene ca... | https://en.wikipedia.org/wiki/Agamassan |
Agamous ( AG ) is a homeotic gene and MADS-box transcription factor from Arabidopsis thaliana . The TAIR AGI number is AT4G18960.
The identity of a floral organ is determined by particular combinations of homeotic genes, these genes derive from a group of undifferentiated cells known as the floral meristem. The presen... | https://en.wikipedia.org/wiki/Agamous |
An agar plate is a Petri dish that contains a growth medium solidified with agar , used to culture microorganisms . Sometimes selective compounds are added to influence growth, such as antibiotics . [ 1 ]
Individual microorganisms placed on the plate will grow into individual colonies , each a clone genetically identi... | https://en.wikipedia.org/wiki/Agar_plate |
Agarose gel electrophoresis is a method of gel electrophoresis used in biochemistry , molecular biology , genetics , and clinical chemistry to separate a mixed population of macromolecules such as DNA or proteins in a matrix of agarose , one of the two main components of agar . The proteins may be separated by charge a... | https://en.wikipedia.org/wiki/Agarose_gel_electrophoresis |
Agata Smoktunowicz FRSE (born 12 October 1973) is a Polish mathematician who works as a professor at the University of Edinburgh . Her research is in abstract algebra . [ 1 ] [ 2 ]
Smoktunowicz's contributions to mathematics include constructing noncommutative nil rings , solving a "famous problem" formulated in 1970 ... | https://en.wikipedia.org/wiki/Agata_Smoktunowicz |
Age-related mobility disability is a self-reported inability to walk due to impairments, limited mobility, dexterity or stamina . [ 1 ] It has been found mostly in older adults with decreased strength in lower extremities. [ 2 ]
According to the National Research Council , the population of older adults is expected to... | https://en.wikipedia.org/wiki/Age-related_mobility_disability |
Age determination in dinosaurs is mainly used to determine the approximate age of a dinosaur when the animal died.
Early attempts to estimate the longevity of dinosaurs used allometric scaling principles. Ages were determined by dividing individual mass estimates by rates of growth for similar, extant taxa . For very ... | https://en.wikipedia.org/wiki/Age_determination_in_dinosaurs |
Knowledge of fish age characteristics is necessary for stock assessments, and to develop management or conservation plans. Size is generally associated with age; however, there are variations in size at any particular age for most fish species making it difficult to estimate one from the other with precision. [ 1 ] The... | https://en.wikipedia.org/wiki/Age_determination_in_fish |
Longevity medicine is a set of preventive healthcare practices that rely on biomarkers of aging , such as aging clocks , to keep the patient's biological and psychological age as near to peak performance as feasible throughout life. [ 1 ] [ 2 ] Biogerontology and precision medicine are some of the related fields. [ 1 ]... | https://en.wikipedia.org/wiki/Age_management_medicine |
The Age of Enlightenment (also the Age of Reason and the Enlightenment ) was an intellectual and philosophical movement taking place in Europe from the late 17th century to the early 19th century. [ 1 ] [ 2 ] The Enlightenment, which valued knowledge gained through rationalism and empiricism , was concerned with a rang... | https://en.wikipedia.org/wiki/Age_of_Enlightenment |
The age of the captain is a mathematical word problem which cannot be answered even though there seems to be plenty of information supplied. It was given for the first time by Gustave Flaubert in a letter to his sister Caroline in 1841: [ 1 ] [ 2 ]
Puisque tu fais de la géométrie et de la trigonométrie, je vais te don... | https://en.wikipedia.org/wiki/Age_of_the_captain |
In physical cosmology , the age of the universe is the time elapsed since the Big Bang : 13.79 billion years. [ 1 ] Astronomers have two different approaches to determine the age of the universe . One is based on a particle physics model of the early universe called Lambda-CDM , matched to measurements of the distant, ... | https://en.wikipedia.org/wiki/Age_of_the_universe |
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