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Stripe 82 is a 300 deg 2 equatorial field of sky that was imaged multiple times by the Sloan Digital Sky Survey from 2000 to 2008. [ 1 ] It approximately covers the region with right ascension from 20:00h to 4:00h and declination from -1.26° to +1.26°.
Stripe 82 has also been observed using many other telescopes and i... | https://en.wikipedia.org/wiki/Stripe_82 |
Stripping is a physical separation process where one or more components are removed from a liquid stream by a vapor stream. [ 1 ] In industrial applications the liquid and vapor streams can have co-current or countercurrent flows. Stripping is usually carried out in either a packed or trayed column. [ 2 ]
Stripping wo... | https://en.wikipedia.org/wiki/Stripping_(chemistry) |
In chemistry , a stripping reaction is a chemical process, studied in a molecular beam , in which the reaction products are scattered forward with respect to the moving centre of mass of the system. [ 1 ]
This chemical reaction article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Stripping_reaction_(chemistry) |
In nuclear physics , a stripping reaction is a nuclear reaction in which part of the incident nucleus combines with the target nucleus, and the remainder proceeds with most of its original momentum in almost its original direction. This reaction was first described by Stuart Thomas Butler in 1950. [ 1 ] [ 2 ]
A simple... | https://en.wikipedia.org/wiki/Stripping_reaction_(physics) |
A stroboscope, also known as a strobe , is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. It consists of either a rotating disk with slots or holes or a lamp such as a flashtube which produces brief repetitive flashes of light. Usually, the rate of the stroboscope is adj... | https://en.wikipedia.org/wiki/Stroboscope |
Stroke ratio , today universally defined as bore/stroke ratio , is a term to describe the ratio between cylinder bore diameter and piston stroke length in a reciprocating piston engine . This can be used for either an internal combustion engine , where the fuel is burned within the cylinders of the engine, or external... | https://en.wikipedia.org/wiki/Stroke_ratio |
Stromagen is a product that is made of stem cells taken from a patient's bone marrow and grown in the laboratory. After a patient's bone marrow is destroyed by treatment with whole body irradiation or chemotherapy , these cells are injected back into the patient to help rebuild bone marrow. Stromagen has been studied i... | https://en.wikipedia.org/wiki/Stromagen |
The strong CP problem is a question in particle physics , which brings up the following quandary: why does quantum chromodynamics (QCD) seem to preserve CP-symmetry ?
In particle physics, CP stands for the combination of C-symmetry (charge conjugation symmetry) and P-symmetry (parity symmetry). According to the curren... | https://en.wikipedia.org/wiki/Strong_CP_problem |
In order theory , a subset A of a partially ordered set P is a strong downwards antichain if it is an antichain in which no two distinct elements have a common lower bound in P , that is,
In the case where P is ordered by inclusion, and closed under subsets, but does not contain the empty set, this is simply a family ... | https://en.wikipedia.org/wiki/Strong_antichain |
In chemistry , a strong electrolyte is a solute that completely, or almost completely, ionizes or dissociates in a solution. These ions are good conductors of electric current in the solution.
Originally, a "strong electrolyte" was defined as a chemical compound that, when in aqueous solution , is a good conductor of... | https://en.wikipedia.org/wiki/Strong_electrolyte |
' Strong gravity' is a non-mainstream theoretical approach to particle confinement having both a cosmological scale and a particle scale gravity.
In the 1960s, it was taken up as an alternative to the then young QCD theory by several theorists, including Abdus Salam , who showed that the particle level gravity approac... | https://en.wikipedia.org/wiki/Strong_gravity |
In nuclear physics and particle physics , the strong interaction , also called the strong force or strong nuclear force , is one of the four known fundamental interactions . It confines quarks into protons , neutrons , and other hadron particles, and also binds neutrons and protons to create atomic nuclei, where it is ... | https://en.wikipedia.org/wiki/Strong_interaction |
The strong programme or strong sociology is a variety of the sociology of scientific knowledge (SSK) particularly associated with David Bloor , [ 1 ] Barry Barnes , Harry Collins , Donald A. MacKenzie , [ 2 ] and John Henry. The strong programme's influence on science and technology studies is credited as being unparal... | https://en.wikipedia.org/wiki/Strong_programme |
Strong reciprocity is an area of research in behavioral economics , evolutionary psychology , and evolutionary anthropology on the predisposition to cooperate even when there is no apparent benefit in doing so. This topic is particularly interesting to those studying the evolution of cooperation , as these behaviors se... | https://en.wikipedia.org/wiki/Strong_reciprocity |
In mathematics , a strong topology is a topology which is stronger than some other "default" topology. This term is used to describe different topologies depending on context, and it may refer to:
A topology τ is stronger than a topology σ (is a finer topology ) if τ contains all the open sets of σ.
In algebraic geom... | https://en.wikipedia.org/wiki/Strong_topology |
A strongback is a beam or girder which acts as a secondary support member to an existing structure. A strongback in a staircase is usually ordinary two-by dimensional lumber attached to the staircase stringers to stiffen the assembly. In shipbuilding , a strongback, known as a waler is oriented lengthwise along a ship ... | https://en.wikipedia.org/wiki/Strongback_(girder) |
Heisenberg's uncertainty relation is one of the fundamental results in quantum mechanics. [ 1 ] Later Robertson proved the uncertainty relation for two general non-commuting observables , [ 2 ] which was strengthened by Schrödinger . [ 3 ] However, the conventional uncertainty relation like the Robertson-Schrödinger re... | https://en.wikipedia.org/wiki/Stronger_uncertainty_relations |
Strongly correlated materials are a wide class of compounds that include insulators and electronic materials, and show unusual (often technologically useful) electronic and magnetic properties , such as metal-insulator transitions , heavy fermion behavior, half-metallicity , and spin-charge separation . The essential f... | https://en.wikipedia.org/wiki/Strongly_correlated_material |
Strong measurability has a number of different meanings, some of which are explained below.
For a function f with values in a Banach space (or Fréchet space ), strong measurability usually means Bochner measurability .
However, if the values of f lie in the space L ( X , Y ) {\displaystyle {\mathcal {L}}(X,Y)} of con... | https://en.wikipedia.org/wiki/Strongly_measurable_function |
In model theory —a branch of mathematical logic —a minimal structure is an infinite one-sorted structure such that every subset of its domain that is definable with parameters is either finite or cofinite . A strongly minimal theory is a complete theory all models of which are minimal. A strongly minimal structure is a... | https://en.wikipedia.org/wiki/Strongly_minimal_theory |
In graph theory , a strongly regular graph ( SRG ) is a regular graph G = ( V , E ) with v vertices and degree k such that for some given integers λ , μ ≥ 0 {\displaystyle \lambda ,\mu \geq 0}
Such a strongly regular graph is denoted by srg( v , k , λ, μ) . Its complement graph is also strongly regular: it is an srg( ... | https://en.wikipedia.org/wiki/Strongly_regular_graph |
The strontian process is an obsolete chemical method to recover sugar from molasses . Its use in Europe peaked in the middle of the 19th century. The name strontian comes from the Scottish village Strontian where the source mineral strontianite ( strontium carbonate ) was first found.
Strontium carbonate is a recycled... | https://en.wikipedia.org/wiki/Strontian_process |
Strontium-90 ( 90 Sr ) is a radioactive isotope of strontium produced by nuclear fission , with a half-life of 28.79 years. It undergoes β − decay into yttrium-90 , with a decay energy of 0.546 MeV. [ 2 ] Strontium-90 has applications in medicine and industry and is an isotope of concern in fallout from nuclear weapons... | https://en.wikipedia.org/wiki/Strontium-90 |
Strontium aluminate is an aluminate compound with the chemical formula SrAl 2 O 4 (sometimes written as SrO·Al 2 O 3 ). It is a pale yellow, monoclinic crystalline powder that is odourless and non-flammable. When activated with a suitable dopant (e.g. europium , written as Eu:SrAl 2 O 4 ), it acts as a photoluminescent... | https://en.wikipedia.org/wiki/Strontium_aluminate |
Strontium azide is an inorganic chemical compound with the formula Sr(N 3 ) 2 . It is composed of the strontium cation ( Sr 2+ ) and the azide anions ( N − 3 ). [ 1 ]
Strontium azide crystallizes in an orthorhombic Fddd space group . [ 2 ] Unlike the azides of alkali metals which have a linear azide ion formation, str... | https://en.wikipedia.org/wiki/Strontium_azide |
Strontium bromate is a rarely considered chemical in the laboratory or in industries. It is, however, mentioned in the book Uncle Tungsten: Memories of a Chemical Boyhood by Oliver Sacks . There it is said that this salt glows when crystallized from a saturated aqueous solution . [ 1 ] Chemically this salt is soluble i... | https://en.wikipedia.org/wiki/Strontium_bromate |
Strontium nitrate is an inorganic compound composed of the elements strontium , nitrogen and oxygen with the formula Sr ( NO 3 ) 2 . This colorless solid is used as a red colorant and oxidizer in pyrotechnics .
Strontium nitrate is typically generated by the reaction of nitric acid on strontium carbonate . [ 2 ]
Lik... | https://en.wikipedia.org/wiki/Strontium_nitrate |
Strontium oxalate is a compound with the chemical formula SrC 2 O 4 . Strontium oxalate can exist either in a hydrated form ( SrC 2 O 4 · n H 2 O ) or as the acidic salt of strontium oxalate ( SrC 2 O 4 · m H 2 C 2 O 4 · n H 2 O ). [ 2 ] Strontium oxalate is soluble in 20 000 parts of water; in 1 900 parts of 3.5% acet... | https://en.wikipedia.org/wiki/Strontium_oxalate |
Strontium peroxide is an inorganic compound with the formula Sr O 2 that exists in both anhydrous and octahydrate form, both of which are white solids. The anhydrous form adopts a structure similar to that of calcium carbide . [ 4 ] [ 5 ]
It is an oxidizing agent used for bleaching . It is used in some pyrotechnic co... | https://en.wikipedia.org/wiki/Strontium_peroxide |
In dimensional analysis , the Strouhal number ( St , or sometimes Sr to avoid the conflict with the Stanton number ) is a dimensionless number describing oscillating flow mechanisms. The parameter is named after Vincenc Strouhal , a Czech physicist who experimented in 1878 with wires experiencing vortex shedding and si... | https://en.wikipedia.org/wiki/Strouhal_number |
The Structural Classification of Proteins (SCOP) database is a largely manual classification of protein structural domains based on similarities of their structures and amino acid sequences . A motivation for this classification is to determine the evolutionary relationship between proteins. Proteins with the same sh... | https://en.wikipedia.org/wiki/Structural_Classification_of_Proteins_database |
CSIR-Structural Engineering Research Centre ( CSIR-SERC ), Chennai is one of the 38 constituent laboratories of the Council of Scientific and Industrial Research in India. The institute is a certified ISO:9001 quality institute. [ 1 ]
CSIR-SERC is involved in research and development in the field of designing, constru... | https://en.wikipedia.org/wiki/Structural_Engineering_Research_Centre |
The Structural Engineering exam is a written examination given by state licensing boards in the United States as part of the testing for licensing structural engineers . This exam is written by the National Council of Examiners for Engineering and Surveying . It consists of 4 separate exams covering vertical and later... | https://en.wikipedia.org/wiki/Structural_Engineering_exam |
The Structural Engineers Association of Northern California ( SEAONC ) is a structural engineering association established in 1930. Its headquarters are in San Francisco, California . Initially a club for structural engineers to exchange technical information, it evolved into a professional organization advising on the... | https://en.wikipedia.org/wiki/Structural_Engineers_Association_of_Northern_California |
In mathematics, structural Ramsey theory is a categorical generalisation of Ramsey theory , rooted in the idea that many important results of Ramsey theory have "similar" logical structures. The key observation is noting that these Ramsey-type theorems can be expressed as the assertion that a certain category (or class... | https://en.wikipedia.org/wiki/Structural_Ramsey_theory |
A structural analog , also known as a chemical analog or simply an analog , is a compound having a structure similar to that of another compound, but differing from it in respect to a certain component. [ 1 ] [ 2 ] [ 3 ]
It can differ in one or more atoms , functional groups , or substructures, which are replaced with... | https://en.wikipedia.org/wiki/Structural_analog |
Structural biology deals with structural analysis of living material (formed, composed of, and/or maintained and refined by living cells) at every level of organization. [ 1 ]
Early structural biologists throughout the 19th and early 20th centuries were primarily only able to study structures to the limit of the naked... | https://en.wikipedia.org/wiki/Structural_biology |
In structural engineering , structural elements are used in structural analysis to split a complex structure into simple elements (each bearing a structural load ). Within a structure, an element cannot be broken down (decomposed) into parts of different kinds (e.g., beam or column). [ 1 ]
Structural building componen... | https://en.wikipedia.org/wiki/Structural_building_components |
The structural channel , C-channel or parallel flange channel ( PFC ), is a type of (usually structural steel ) beam , used primarily in building construction and civil engineering. Its cross section consists of a wide "web", usually but not always oriented vertically, and two "flanges" at the top and bottom of the we... | https://en.wikipedia.org/wiki/Structural_channel |
Structural complexity is a science of applied mathematics that aims to relate fundamental physical or biological aspects of a complex system with the mathematical description of the morphological complexity that the system exhibits, by establishing rigorous relations between mathematical and physical properties of such... | https://en.wikipedia.org/wiki/Structural_complexity_(applied_mathematics) |
Structural engineers analyze, design, plan, and research structural components and structural systems to achieve design goals and ensure the safety and comfort of users or occupants. Their work takes account mainly of safety, technical, economic, and environmental concerns, but they may also consider aesthetic and soci... | https://en.wikipedia.org/wiki/Structural_engineer |
Structural engineering is a sub-discipline of civil engineering in which structural engineers are trained to design the 'bones and joints' that create the form and shape of human-made structures . Structural engineers also must understand and calculate the stability , strength, rigidity and earthquake-susceptibility of... | https://en.wikipedia.org/wiki/Structural_engineering |
Structural engineering depends upon a detailed knowledge of loads , physics and materials to understand and predict how structures support and resist self-weight and imposed loads. To apply the knowledge successfully structural engineers will need a detailed knowledge of mathematics and of relevant empirical and theore... | https://en.wikipedia.org/wiki/Structural_engineering_theory |
The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [ 1 ] The chemical bonding within the molecule is also shown, either explicitly or implicitly. Unlike other chemical form... | https://en.wikipedia.org/wiki/Structural_formula |
Structural fracture mechanics is the field of structural engineering concerned with the study of load-carrying structures that includes one or several failed or damaged components. It uses methods of analytical solid mechanics , structural engineering, safety engineering , probability theory , and catastrophe theory to... | https://en.wikipedia.org/wiki/Structural_fracture_mechanics |
A structural gene is a gene that codes for any RNA or protein product other than a regulatory factor (i.e. regulatory protein ). Structural genes are typically viewed as those containing sequences of DNA corresponding to the amino acids of a protein that will be produced, as long as said protein does not function to re... | https://en.wikipedia.org/wiki/Structural_gene |
Structural genomics seeks to describe the 3-dimensional structure of every protein encoded by a given genome . This genome-based approach allows for a high-throughput method of structure determination by a combination of experimental and modeling approaches . The principal difference between structural genomics and tra... | https://en.wikipedia.org/wiki/Structural_genomics |
Structural health monitoring ( SHM ) involves the observation and analysis of a system over time using periodically sampled response measurements to monitor changes to the material and geometric properties of engineering structures such as bridges and buildings.
In an operational environment, structures degrade with a... | https://en.wikipedia.org/wiki/Structural_health_monitoring |
Structural holes is a concept from social network research, originally developed by Ronald Stuart Burt . A structural hole is understood as a gap between two individuals who have complementary sources to information. The study of structural holes spans the fields of sociology, economics, and computer science. Burt intr... | https://en.wikipedia.org/wiki/Structural_holes |
Structural induction is a proof method that is used in mathematical logic (e.g., in the proof of Łoś' theorem ), computer science , graph theory , and some other mathematical fields. It is a generalization of mathematical induction over natural numbers and can be further generalized to arbitrary Noetherian induction .... | https://en.wikipedia.org/wiki/Structural_induction |
Structural information theory ( SIT ) is a theory about human perception and in particular about visual perceptual organization, which is a neuro-cognitive process. It has been applied to a wide range of research topics, [ 1 ] mostly in visual form perception but also in, for instance, visual ergonomics, data visualiza... | https://en.wikipedia.org/wiki/Structural_information_theory |
A structural insulated panel , or structural insulating panel , ( SIP ), is a form of sandwich panel used as a building material in the construction industry.
SIP is a sandwich structured composite , consisting of an insulating layer of rigid core sandwiched between two layers of structural board. The board can be she... | https://en.wikipedia.org/wiki/Structural_insulated_panel |
Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order to prevent failures in future designs.
Structural integrity is the ability of ... | https://en.wikipedia.org/wiki/Structural_integrity_and_failure |
In chemistry , a structural isomer (or constitutional isomer in the IUPAC nomenclature [ 1 ] ) of a compound is a compound that contains the same number and type of atoms, but with a different connectivity (i.e. arrangement of bonds ) between them. [ 2 ] [ 3 ] The term metamer was formerly used for the same concept. [ ... | https://en.wikipedia.org/wiki/Structural_isomer |
A structural load or structural action is a mechanical load (more generally a force ) applied to structural elements . [ 1 ] [ 2 ] A load causes stress , deformation , displacement or acceleration in a structure . Structural analysis , a discipline in engineering , analyzes the effects of loads on structures and struct... | https://en.wikipedia.org/wiki/Structural_load |
Structural engineering depends on the knowledge of materials and their properties, in order to understand how different materials resist and support loads.
Common structural materials are:
Wrought iron is the simplest form of iron, and is almost pure iron (typically less than 0.15% carbon). It usually contains some s... | https://en.wikipedia.org/wiki/Structural_material |
Structural mechanics or mechanics of structures is the computation of deformations , deflections , and internal forces or stresses ( stress equivalents ) within structures, either for design or for performance evaluation of existing structures. [ 1 ] It is one subset of structural analysis . Structural mechanics analys... | https://en.wikipedia.org/wiki/Structural_mechanics |
A structural pipe fitting , also known as a slip on pipe fitting , clamp or pipe clamp is used to build structures such as handrails, guardrails, and other types of pipe or tubular structure. They can also be used to build furniture and theatrical riggings. The fittings slip on the pipe and are usually locked down with... | https://en.wikipedia.org/wiki/Structural_pipe_fitting |
In mathematical logic , structural proof theory is the subdiscipline of proof theory that studies proof calculi that support a notion of analytic proof , a kind of proof whose semantic properties are exposed. When all the theorems of a logic formalised in a structural proof theory have analytic proofs, then the proof t... | https://en.wikipedia.org/wiki/Structural_proof_theory |
Structural reliability is about applying reliability engineering theories to buildings and, more generally, structural analysis. [ 1 ] [ 2 ] Reliability is also used as a probabilistic measure of structural safety. The reliability of a structure is defined as the probability of complement of failure ( Reliability = 1 −... | https://en.wikipedia.org/wiki/Structural_reliability |
In construction , structural repairs is a technical term describing maintenance of a property structure in order to bring it up to local health and safety standards. It is contrasted to renovations or non-structural repairs. Unlike renovations, structural repairs add relatively little value to a property. [ 1 ] [ 2 ] [... | https://en.wikipedia.org/wiki/Structural_repairs |
In discrete geometry and mechanics , structural rigidity is a combinatorial theory for predicting the flexibility of ensembles formed by rigid bodies connected by flexible linkages or hinges .
Rigidity is the property of a structure that it does not bend or flex under an applied force. The opposite of rigidity is flex... | https://en.wikipedia.org/wiki/Structural_rigidity |
Robustness is the ability of a structure to withstand events like fire, explosions, impact or the consequences of human error , without being damaged to an extent disproportionate to the original cause – as defined in EN 1991-1-7 of the Accidental Actions Eurocode . [ 1 ]
A structure designed and constructed to be rob... | https://en.wikipedia.org/wiki/Structural_robustness |
In the logical discipline of proof theory , a structural rule is an inference rule of a sequent calculus that does not refer to any logical connective but instead operates on the sequents directly. [ 1 ] [ 2 ] Structural rules often mimic the intended meta-theoretic properties of the logic. Logics that deny one or more... | https://en.wikipedia.org/wiki/Structural_rule |
In mathematics , structural stability is a fundamental property of a dynamical system which means that the qualitative behavior of the trajectories is unaffected by small perturbations (to be exact C 1 -small perturbations).
Examples of such qualitative properties are numbers of fixed points and periodic orbits (but n... | https://en.wikipedia.org/wiki/Structural_stability |
Structural steel is steel used for making construction materials in a variety of shapes. Many structural steel shapes take the form of an elongated beam having a profile of a specific cross section . Structural steel shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices, etc., ... | https://en.wikipedia.org/wiki/Structural_steel |
A structural support is a part of a building or structure that provides the necessary stiffness and strength in order to resist the internal forces (vertical forces of gravity and lateral forces due to wind and earthquakes) and guide them safely to the ground. External loads (actions of other bodies) that act on buildi... | https://en.wikipedia.org/wiki/Structural_support |
Structural synthesis of programs (SSP) is a special form of (automatic) program synthesis that is based on propositional calculus . More precisely, it uses intuitionistic logic for describing the structure of a program in such a detail that the program can be automatically composed from pieces like subroutines or even ... | https://en.wikipedia.org/wiki/Structural_synthesis_of_programs |
The term structural system or structural frame in structural engineering refers to the load -resisting sub-system of a building or object. The structural system transfers loads through interconnected elements or members.
Commonly used structures can be classified into five major categories, depending on the type of pr... | https://en.wikipedia.org/wiki/Structural_system |
In polymer chemistry , a structural unit is a building block of a polymer chain. It is the result of a monomer which has been polymerized into a long chain.
There may be more than one structural unit in the repeat unit . When different monomers are polymerized, a copolymer is formed. It is a routine way of developing ... | https://en.wikipedia.org/wiki/Structural_unit |
In computing , a structural vulnerability is an IT system weakness that consists of several so-called component vulnerabilities . This type of weakness generally emerges due to several system architecture flaws.
An example of a structural vulnerability is a person working in a critical part of the system with no secur... | https://en.wikipedia.org/wiki/Structural_vulnerability_(computing) |
Structuralism is a theory in the philosophy of mathematics that holds that mathematical theories describe structures of mathematical objects . Mathematical objects are exhaustively defined by their place in such structures. Consequently, structuralism maintains that mathematical objects do not possess any intrinsic p... | https://en.wikipedia.org/wiki/Structuralism_(philosophy_of_mathematics) |
Structure-Based Assignment (SBA) is a technique to accelerate the resonance assignment which is a key bottleneck of NMR ( Nuclear magnetic resonance ) structural biology. [ 1 ] A homologous (similar) protein is used as a template to the target protein in SBA. This template protein provides prior structural information ... | https://en.wikipedia.org/wiki/Structure-based_assignment |
Structure-based combinatorial protein engineering ( SCOPE ) is a synthetic biology technique for creating gene libraries ( lineages ) of defined composition designed from structural and probabilistic constraints of the encoded proteins. The development of this technique was driven by fundamental questions about protein... | https://en.wikipedia.org/wiki/Structure-based_combinatorial_protein_engineering |
In universal algebra and in model theory , a structure consists of a set along with a collection of finitary operations and relations that are defined on it.
Universal algebra studies structures that generalize the algebraic structures such as groups , rings , fields and vector spaces . The term universal algebra is u... | https://en.wikipedia.org/wiki/Structure_(mathematical_logic) |
In condensed matter physics and crystallography , the static structure factor (or structure factor for short) is a mathematical description of how a material scatters incident radiation. The structure factor is a critical tool in the interpretation of scattering patterns ( interference patterns ) obtained in X-ray , el... | https://en.wikipedia.org/wiki/Structure_factor |
Structure field maps (SFMs) or structure maps are visualizations of the relationship between ionic radii and crystal structures for representing classes of materials. [ 1 ] The SFM and its extensions has found broad applications in geochemistry , mineralogy , chemical synthesis of materials, and nowadays in materials i... | https://en.wikipedia.org/wiki/Structure_field_map |
The structure function , like the fragmentation function, is a probability density function in physics. It is somewhat analogous to the structure factor in solid-state physics , and the form factor (quantum field theory) .
The nucleon (proton and neutron) electromagnetic form factors describe the spatial distribution... | https://en.wikipedia.org/wiki/Structure_function |
In artificial intelligence and cognitive science , the structure mapping engine ( SME ) is an implementation in software of an algorithm for analogical matching based on the psychological theory of Dedre Gentner . The basis of Gentner's structure-mapping idea is that an analogy is a mapping of knowledge from one domain... | https://en.wikipedia.org/wiki/Structure_mapping_engine |
In computing , the Structure of Management Information (SMI) , an adapted subset of ASN.1 , is a technical language used in definitions of Simple Network Management Protocol (SNMP) and its extensions to define sets ("modules") of related managed objects in a Management Information Base (MIB).
SMI subdivides into three... | https://en.wikipedia.org/wiki/Structure_of_Management_Information |
The structure of liquids , glasses and other non-crystalline solids is characterized by the absence of long-range order which defines crystalline materials. Liquids and amorphous solids do, however, possess a rich and varied array of short to medium range order, which originates from chemical bonding and related intera... | https://en.wikipedia.org/wiki/Structure_of_liquids_and_glasses |
A structure relocation is the process of moving a structure from one location to another. There are two main ways for a structure to be moved: disassembling and then reassembling it at the required destination, or transporting it whole. For the latter, the building is first raised and then may be pushed on temporary ra... | https://en.wikipedia.org/wiki/Structure_relocation |
In mathematics , the structure theorem for Gaussian measures shows that the abstract Wiener space construction is essentially the only way to obtain a strictly positive Gaussian measure on a separable Banach space . It was proved in the 1970s by Kallianpur –Satô–Stefan and Dudley – Feldman – le Cam .
There is the earl... | https://en.wikipedia.org/wiki/Structure_theorem_for_Gaussian_measures |
Macromolecular structure validation is the process of evaluating reliability for 3-dimensional atomic models of large biological molecules such as proteins and nucleic acids . These models, which provide 3D coordinates for each atom in the molecule (see example in the image), come from structural biology experiments su... | https://en.wikipedia.org/wiki/Structure_validation |
Structured Financial Messaging System ( SFMS ) is a secure messaging standard developed to serve as a platform for intra-bank and inter-bank applications. It is an Indian standard similar to SWIFT which is the international messaging system used for financial messaging globally.
SFMS can be used for secure communicati... | https://en.wikipedia.org/wiki/Structured_Financial_Messaging_System |
Structured illumination light sheet microscopy (SI-LSM) is an optical imaging technique used for achieving volumetric imaging with high temporal and spatial resolution in all three dimensions. It combines the ability of light sheet microscopy to maintain spatial resolution throughout relatively thick samples with the h... | https://en.wikipedia.org/wiki/Structured_illumination_light_sheet_microscopy |
The term structured packing refers to a range of specially designed materials for use in absorption and distillation columns. [ 1 ] Structured packings typically consist of thin corrugated metal plates or gauzes arranged in a way that force fluids to take complicated paths through the column, thereby creating a large s... | https://en.wikipedia.org/wiki/Structured_packing |
Structured systems analysis and design method ( SSADM ) is a systems approach to the analysis and design of information systems. SSADM was produced for the Central Computer and Telecommunications Agency , a UK government office concerned with the use of technology in government, from 1980 onwards.
SSADM is a waterfall... | https://en.wikipedia.org/wiki/Structured_systems_analysis_and_design_method |
The structured what-if technique ( SWIFT ) is a prospective hazards analysis method that uses structured brainstorming with guidewords and prompts to identify risks, [ 1 ] with the aim of being quicker than more intensive methods like failure mode and effects analysis (FMEA). [ 2 ] [ 3 ] It is used in various settings,... | https://en.wikipedia.org/wiki/Structured_what-if_technique |
Structures for lossless ion manipulations ( SLIM ) are a form of ion optics to which various radio frequency and dc electric potentials can be applied and used to enable a broad range of ion manipulations, such as separations based upon ion mobility spectrometry , reactions (unimolecular, ion-molecule, and ion-ion), an... | https://en.wikipedia.org/wiki/Structures_for_lossless_ion_manipulations |
The structure–activity relationship ( SAR ) is the relationship between the chemical structure of a molecule and its biological activity . This idea was first presented by Alexander Crum Brown and Thomas Richard Fraser at least as early as 1868. [ 1 ] [ 2 ]
The analysis of SAR enables the determination of the chemical... | https://en.wikipedia.org/wiki/Structure–activity_relationship |
In crystallography , a Strukturbericht designation or Strukturbericht type is a system of detailed crystal structure classification by analogy to another known structure. The designations were intended to be comprehensive but are mainly used as supplement to space group crystal structures designations, especially histo... | https://en.wikipedia.org/wiki/Strukturbericht_designation |
Strut channel , often referred to colloquially by one of several manufacturer trade names, is a standardized formed structural system used in the construction and electrical industries for light structural support, often for supporting wiring, plumbing, or mechanical components such as air conditioning or ventilation s... | https://en.wikipedia.org/wiki/Strut_channel |
Strychnine total synthesis in chemistry describes the total synthesis of the complex biomolecule strychnine . The first reported method by the group of Robert Burns Woodward in 1954 is considered a classic in this research field. [ 2 ] [ 3 ] [ 4 ] [ 5 ]
At the time it formed the natural conclusion to an elaborate proc... | https://en.wikipedia.org/wiki/Strychnine_total_synthesis |
Stryker's reagent ([(PPh 3 )CuH] 6 ), [ 1 ] also known as the Osborn complex , is a hexameric copper hydride ligated with triphenylphosphine . It is a brick red, air-sensitive solid. Stryker's reagent is a mildly hydridic reagent, used in homogeneous catalysis of conjugate reduction reactions of enones, enoates, and r... | https://en.wikipedia.org/wiki/Stryker's_reagent |
Strähle's construction is a geometric method for determining the lengths for a series of vibrating strings with uniform diameters and tensions to sound pitches in a specific rational tempered musical tuning . It was first published in the 1743 Proceedings of the Royal Swedish Academy of Sciences by Swedish master organ... | https://en.wikipedia.org/wiki/Strähle_construction |
In mathematics and astrophysics , the Strömgren integral , introduced by Bengt Strömgren ( 1932 , p.123) while computing the Rosseland mean opacity , is the integral :
Cox (1964) discussed applications of the Strömgren integral in astrophysics, and MacLeod (1996) discussed how to compute it. | https://en.wikipedia.org/wiki/Strömgren_integral |
In theoretical astrophysics , there can be a sphere of ionized hydrogen (H II) around a young star of the spectral classes O or B . The theory was derived by Bengt Strömgren in 1937 and later named Strömgren sphere after him. The Rosette Nebula is the most prominent example of this type of emission nebula from the H II... | https://en.wikipedia.org/wiki/Strömgren_sphere |
The Stuart Ballantine Medal was a science and engineering award presented by the Franklin Institute , of Philadelphia, Pennsylvania, USA. It was named after the US inventor Stuart Ballantine . | https://en.wikipedia.org/wiki/Stuart_Ballantine_Medal |
Stuart Schreiber (born February 6, 1956) is an American chemist who is the Morris Loeb Research Professor at Harvard University, [ 1 ] a co-founder of the Broad Institute, [ 2 ] Howard Hughes Medical Institute Investigator, Emeritus, [ 3 ] and a member of the National Academy of Sciences [ 4 ] and National Academy of M... | https://en.wikipedia.org/wiki/Stuart_Schreiber |
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