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The Strange–Rahman–Smith equation is used in the cryoporometry method of measuring porosity .
NMR cryoporometry [ 1 ] [ 2 ] [ 3 ] is a recent technique for measuring total porosity and pore size distributions. NMRC is based on two equations : the Gibbs–Thomson equation , which maps the melting point depression to pore... | https://en.wikipedia.org/wiki/Strange–Rahman–Smith_equation |
Stranski–Krastanov growth ( SK growth , also Stransky–Krastanov or ' Stranski–Krastanow' ) is one of the three primary modes by which thin films grow epitaxially at a crystal surface or interface. Also known as 'layer-plus-island growth', the SK mode follows a two step process: initially, complete films of adsorbates ,... | https://en.wikipedia.org/wiki/Stranski–Krastanov_growth |
A strap footing is a component of a building's foundation . It is a type of combined footing , [ 1 ] consisting of two or more column footings connected by a concrete beam. This type of beam is called a strap beam . It is used to help distribute the weight of either heavily or eccentrically loaded column footings to ad... | https://en.wikipedia.org/wiki/Strap_footing |
The Strasbourg Agreement of 27 August 1675 is the first international agreement banning the use of chemical weapons . The treaty was signed between France and the Holy Roman Empire , and was created in response to the use of poisoned bullets . [ 1 ] The use of this weaponry was preceded by Leonardo da Vinci 's inventio... | https://en.wikipedia.org/wiki/Strasbourg_Agreement_(1675) |
The Strasbourg Institute of Material Physics and Chemistry ( IPCMS — French : Institut de Physique et Chimie des Matériaux de Strasbourg ) [ 1 ] is a joint research unit (UMR 7504) between the French National Center for Scientific Research (CNRS) and the University of Strasbourg . It was founded in 1987 and is located ... | https://en.wikipedia.org/wiki/Strasbourg_Institute_of_Material_Physics_and_Chemistry |
The Strata Diocletiana ( Latin for "Road of Diocletian ") was a fortified road that ran along the eastern desert border, the limes Arabicus , of the Roman Empire . [ 1 ] [ 2 ] As its name suggests and as it appears on milestones , [ 3 ] it was constructed under Emperor Diocletian (r. 284–305 AD) as part of a wide-rangi... | https://en.wikipedia.org/wiki/Strata_Diocletiana |
The Strata Exam is a CompTIA certification. It covers the fundamentals of various other areas of IT study. Below is a chart of each section of the Strata test and how much it comprises the exam:
This computing article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Strata_Exam |
The Strategic Advisory Group of Experts ( SAGE ) is the principal advisory group to World Health Organization (WHO) for vaccines and immunization . Established in 1999 through the merging of two previous committees, notably the Scientific Advisory Group of Experts (which served the Program for Vaccine Development) and ... | https://en.wikipedia.org/wiki/Strategic_Advisory_Group_of_Experts |
The Strategic Approach to International Chemicals Management (SAICM) is a global policy framework to foster the sound management of chemicals. The SAICM Secretariat [ 1 ] is hosted by the United Nations Environment Programme .
"The sound management of chemicals is essential if we are to achieve sustainable development... | https://en.wikipedia.org/wiki/Strategic_Approach_to_International_Chemicals_Management |
The United States government's Strategic Computing Initiative funded research into advanced computer hardware and artificial intelligence from 1983 to 1993. The initiative was designed to support various projects that were required to develop machine intelligence in a prescribed ten-year time frame, from chip design an... | https://en.wikipedia.org/wiki/Strategic_Computing_Initiative |
The Strategic National Stockpile ( SNS ), originally called the National Pharmaceutical Stockpile ( NPS ), is the United States' national repository of antibiotics , vaccines , chemical antidotes , antitoxins , and other critical medical supplies . Its website states:
"The Strategic National Stockpile's role is to sup... | https://en.wikipedia.org/wiki/Strategic_National_Stockpile |
In economics and game theory , the decisions of two or more players are called strategic complements if they mutually reinforce one another, and they are called strategic substitutes if they mutually offset one another. These terms were originally coined by Bulow, Geanakoplos, and Klemperer (1985). [ 1 ]
To see what ... | https://en.wikipedia.org/wiki/Strategic_complements |
Strategic design is the application of future-oriented design principles in order to increase an organization 's innovative and competitive qualities. Its foundations lie in the analysis of external and internal trends and data, which enables design decisions to be made on the basis of facts rather than aesthetics or i... | https://en.wikipedia.org/wiki/Strategic_design |
In game theory , a strategy A dominates another strategy B if A will always produce a better result than B , regardless of how any other player plays. Some very simple games (called straightforward games) can be solved using dominance.
A player can compare two strategies, A and B, to determine which one is better. The... | https://en.wikipedia.org/wiki/Strategic_dominance |
Strategic environmental assessment ( SEA ) is a systematic decision support process aiming to ensure that environmental and possibly other sustainability aspects are considered effectively in policy, plan, and program making. In this context, following Fischer (2007) [ 1 ] SEA may be seen as:
Effective SEA works withi... | https://en.wikipedia.org/wiki/Strategic_environmental_assessment |
Strategic fair division studies problems of fair division , in which participants cooperate to subdivide goods or resources fairly, from a point of view in which the participants are assumed to hide their preferences and act strategically in order to maximize their own utility, rather than playing sincerely according t... | https://en.wikipedia.org/wiki/Strategic_fair_division |
A strategic information system (SIS) is a computer system used by organizations to analyze market and competitor information, helping them plan and make their business more successful. It shapes the corporate strategy of an organization by providing a connection between the organization's demands and the latest informa... | https://en.wikipedia.org/wiki/Strategic_information_system |
A strategic move in game theory is an action taken by a player outside the defined actions of the game in order to gain a strategic advantage and increase one's payoff. Strategic moves can either be unconditional moves or response rules . The key characteristics of a strategic move are that it involves a commitment fro... | https://en.wikipedia.org/wiki/Strategic_move |
Strategic pluralism (also known as the dual-mating strategy ) is a theory in evolutionary psychology regarding human mating strategies that suggests women have evolved to evaluate men in two categories: whether they are reliable long term providers, and whether they contain high quality genes. [ 1 ] The theory of strat... | https://en.wikipedia.org/wiki/Strategic_pluralism |
Strategies for engineered negligible senescence ( SENS ) is a range of proposed regenerative medical therapies, either planned or currently in development, for the periodic repair of all age-related damage to human tissue. These therapies have the ultimate aim of maintaining a state of negligible senescence in patients... | https://en.wikipedia.org/wiki/Strategies_for_engineered_negligible_senescence |
In combinatorial game theory , the strategy-stealing argument is a general argument that shows, for many two-player games , that the second player cannot have a guaranteed winning strategy . The strategy-stealing argument applies to any symmetric game (one in which either player has the same set of available moves with... | https://en.wikipedia.org/wiki/Strategy-stealing_argument |
In mechanism design , a strategyproof (SP) mechanism is a game form in which each player has a weakly- dominant strategy , so that no player can gain by "spying" over the other players to know what they are going to play. When the players have private information (e.g. their type or their value to some item), and the s... | https://en.wikipedia.org/wiki/Strategyproofness |
Stratification has several usages in mathematics.
In mathematical logic , stratification is any consistent assignment of numbers to predicate symbols guaranteeing that a unique formal interpretation of a logical theory exists. Specifically, we say that a set of clauses of the form Q 1 ∧ ⋯ ∧ Q n ∧ ¬ Q n + 1 ∧ ⋯ ∧ ¬ Q n... | https://en.wikipedia.org/wiki/Stratification_(mathematics) |
Stratification in water is the formation in a body of water of relatively distinct and stable layers by density . It occurs in all water bodies where there is stable density variation with depth. Stratification is a barrier to the vertical mixing of water, which affects the exchange of heat, carbon, oxygen and nutrient... | https://en.wikipedia.org/wiki/Stratification_(water) |
The flow in many fluids varies with density and depends upon gravity. The fluid with lower density is always above the fluid with higher density ( stable stratification ). Stratified flows are very common such as the Earth's ocean and its atmosphere. [ 1 ]
A stratified fluid may be defined as the fluid with density va... | https://en.wikipedia.org/wiki/Stratified_flows |
In mathematics, especially in topology, a stratified space is a topological space that admits or is equipped with a stratification , a decomposition into subspaces, which are nice in some sense (e.g., smooth or flat [ 1 ] ).
A basic example is a subset of a smooth manifold that admits a Whitney stratification . But th... | https://en.wikipedia.org/wiki/Stratified_space |
Stratigraphic paleobiology is a branch of geology that is closely related to paleobiology , sequence stratigraphy and sedimentology . Stratigraphic paleobiology studies how the fossil record is altered by sedimentological processes and how this affects biostratigraphy and paleobiological interpretations of the fossil r... | https://en.wikipedia.org/wiki/Stratigraphic_paleobiology |
The Stratingh Institute for Chemistry is a research institute of the Faculty of Science and Engineering of the University of Groningen ( The Netherlands ). It is named after Sibrandus Stratingh, who is known for being the inventor of the first battery powered electric car . [ 1 ] As of 2020, about 150 people (from over... | https://en.wikipedia.org/wiki/Stratingh_Institute_for_Chemistry |
Stratocladistics is a technique in phylogenetics of making phylogenetic inferences using both geological and morphobiological data. It follows many of the same rules as cladistics , using Bayesian logic to quantify how good a phylogenetic hypothesis is in terms of debt and parsimony . However, in addition to the morp... | https://en.wikipedia.org/wiki/Stratocladistics |
Stratos Global Corporation was a Canada -based telecommunications company founded in 1985, mainly serving maritime, government and oil and gas markets around the world. It was acquired by Inmarsat in 2009.
Stratos offers mobile and fixed satellite , microwave and wireless services, including Inmarsat, Iridium satellit... | https://en.wikipedia.org/wiki/Stratos_Global_Corporation |
Stratospheric aerosol injection (SAI) is a proposed method of solar geoengineering (or solar radiation modification) to reduce global warming . This would introduce aerosols into the stratosphere to create a cooling effect via global dimming and increased albedo , which occurs naturally from volcanic winter . [ 1 ] It ... | https://en.wikipedia.org/wiki/Stratospheric_aerosol_injection |
Straw-bale construction is a building method that uses bales of straw (usually wheat [ 2 ] straw) as structural elements, building insulation , or both. This construction method is commonly used in natural building or "brown" construction projects. Research has shown that straw-bale construction is a sustainable method... | https://en.wikipedia.org/wiki/Straw-bale_construction |
Streak seeding [ 1 ] is a method first described during ICCBM-3 by Enrico Stura to induce crystallization in a straight line into a sitting or hanging drop for protein crystallization by introducing microseeds. The purpose is to control nucleation and understand the parameters that make crystals grow. It is also used t... | https://en.wikipedia.org/wiki/Streak_seeding |
In microbiology , streaking is a mechanical technique used to isolate a pure strain from a single species of microorganism, often bacteria . [ 1 ] Samples from a colony derived from a single cell are taken from the streaked plate to create a genetically identical microbiological culture grown on a new plate so that the... | https://en.wikipedia.org/wiki/Streaking_(microbiology) |
A stream is a continuous body of surface water [ 1 ] flowing within the bed and banks of a channel . Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long, large streams are usually called rivers , while smaller, less voluminous and more intermit... | https://en.wikipedia.org/wiki/Stream |
The capacity of a stream or river is the total amount of sediment a stream is able to transport . This measurement usually corresponds to the stream power and the width-integrated bed shear stress across section along a stream profile. Note that capacity is greater than the load, which is the amount of sediment carrie... | https://en.wikipedia.org/wiki/Stream_capacity |
Stream capture , river capture , river piracy or stream piracy is a geomorphological phenomenon occurring when a stream or river drainage system or watershed is diverted from its own bed, and flows down to the bed of a neighbouring stream. This can happen for several reasons, including:
The cause is not always clear.... | https://en.wikipedia.org/wiki/Stream_capture |
In hydrology stream competency, also known as stream competence, is a measure of the maximum size of particles a stream can transport . [ 1 ] The particles are made up of grain sizes ranging from large to small and include boulders , rocks, pebbles , sand , silt , and clay . These particles make up the bed load of the ... | https://en.wikipedia.org/wiki/Stream_competency |
In fluid dynamics , two types of stream function (or streamfunction ) are defined:
The properties of stream functions make them useful for analyzing and graphically illustrating flows.
The remainder of this article describes the two-dimensional stream function.
The two-dimensional stream function is based on the fol... | https://en.wikipedia.org/wiki/Stream_function |
Stream gradient (or stream slope ) is the grade (or slope) of a stream . It is measured by the ratio of drop in elevation and horizontal distance. [ 1 ] It is a dimensionless quantity , usually expressed in units of meters per kilometer (m/km) or feet per mile (ft/mi); it may also be expressed in percent (%).
The world... | https://en.wikipedia.org/wiki/Stream_gradient |
Stream metabolism , often referred to as aquatic ecosystem metabolism in both freshwater (lakes, rivers, wetlands, streams, reservoirs) and marine ecosystems, includes gross primary productivity (GPP) and ecosystem respiration (ER) and can be expressed as net ecosystem production (NEP = GPP - ER). Analogous to metabol... | https://en.wikipedia.org/wiki/Stream_metabolism |
The stream order or waterbody order is a positive whole number used in geomorphology and hydrology to indicate the level of branching in a river system .
There are various approaches [ 1 ] to the topological ordering of rivers or sections of rivers based on their distance from the source ("top down" [ 2 ] ) or from th... | https://en.wikipedia.org/wiki/Stream_order |
In hydrology , a stream pool is a stretch of a river or stream in which the water depth is above average and the water velocity is below average. [ 1 ]
A stream pool may be bedded with sediment or armoured with gravel , and in some cases the pool formations may have been formed as basins in exposed bedrock formations.... | https://en.wikipedia.org/wiki/Stream_pool |
A stream is a continuous body of surface water [ 1 ] flowing within the bed and banks of a channel . Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long, large streams are usually called rivers , while smaller, less voluminous and more intermit... | https://en.wikipedia.org/wiki/Stream_profile |
Stream restoration or river restoration , also sometimes referred to as river reclamation , is work conducted to improve the environmental health of a river or stream , in support of biodiversity , recreation, flood management and/or landscape development. [ 1 ]
Stream restoration approaches can be divided into two br... | https://en.wikipedia.org/wiki/Stream_restoration |
In fluid dynamics , stream thrust averaging is a process used to convert three-dimensional flow through a duct into one-dimensional uniform flow. It makes the assumptions that the flow is mixed adiabatically and without friction . However, due to the mixing process, there is a net increase in the entropy of the syste... | https://en.wikipedia.org/wiki/Stream_thrust_averaging |
Streamflow , or channel runoff , is the flow of water in streams and other channels , and is a major element of the water cycle . It is one runoff component, the movement of water from the land to waterbodies , the other component being surface runoff . Water flowing in channels comes from surface runoff from adjacent ... | https://en.wikipedia.org/wiki/Streamflow |
Streaming data is data that is continuously generated by different sources. Such data should be processed incrementally using stream processing techniques without having access to all of the data. In addition, it should be considered that concept drift may happen in the data which means that the properties of the strea... | https://en.wikipedia.org/wiki/Streaming_data |
The streaming vibration current ( SVI ) and the associated streaming vibration potential is an electric signal that arises when an acoustic wave propagates through a porous body in which the pores are filled with fluid.
Streaming vibration current was experimentally observed in 1948 by M. Williams. [ 1 ] A theoretical... | https://en.wikipedia.org/wiki/Streaming_vibration_current |
In scientific visualization a streamlet is used to visualize flows. It is essentially a short streamline segment. Normally the length of a streamlet is proportional to the flow magnitude at its seed point. [ 1 ]
This computer graphics –related article is a stub . You can help Wikipedia by expanding it .
This compute... | https://en.wikipedia.org/wiki/Streamlet_(scientific_visualization) |
Genomic streamlining is a theory in evolutionary biology and microbial ecology that suggests that there is a reproductive benefit to prokaryotes having a smaller genome size with less non-coding DNA and fewer non-essential genes. [ 1 ] [ 2 ] There is a lot of variation in prokaryotic genome size, with the smallest free... | https://en.wikipedia.org/wiki/Streamlining_theory |
A symbiotic eukaryote that lives in the hindgut of termites , Streblomastix is a protist associated with a community of ectosymbiotic bacteria . [ 1 ] [ 2 ]
Streblomastix moves by beating its anterior flagella .
These protists measure around 100 micrometers in length. They completely lack mitochondria. [ 3 ] | https://en.wikipedia.org/wiki/Streblomastix |
The Strecker amino acid synthesis , also known simply as the Strecker synthesis, is a method for the synthesis of amino acids by the reaction of an aldehyde with cyanide in the presence of ammonia . The condensation reaction yields an α-aminonitrile, which is subsequently hydrolyzed to give the desired amino acid. [ 1... | https://en.wikipedia.org/wiki/Strecker_amino_acid_synthesis |
The Strecker degradation is a chemical reaction which converts an α- amino acid into an aldehyde containing the side chain , by way of an imine intermediate. It is named after Adolph Strecker , a German chemist.
The original observation by Strecker involved the use of alloxan as the oxidant in the first step, [ 1 ] fo... | https://en.wikipedia.org/wiki/Strecker_degradation |
The Streeter–Phelps equation is used in the study of water pollution as a water quality modelling tool. The model describes how dissolved oxygen (DO) decreases in a river or stream along a certain distance by degradation of biochemical oxygen demand (BOD). The equation was derived by H. W. Streeter, a sanitary engineer... | https://en.wikipedia.org/wiki/Streeter–Phelps_equation |
The Strehl ratio is a measure of the quality of optical image formation , originally proposed by Karl Strehl , after whom the term is named. [ 1 ] [ 2 ] Used variously in situations where optical resolution is compromised due to lens aberrations or due to imaging through the turbulent atmosphere , the Strehl ratio has ... | https://en.wikipedia.org/wiki/Strehl_ratio |
The Strejc system identification method allows the estimate of the transfer function of a non-periodic, black box -type system based on its step response and is widely used in all branches of industrial and mechanical engineering.
It allows specifically to estimate the order n of the studied system, its time constant ... | https://en.wikipedia.org/wiki/Strejc_method |
The relative strength of two systems of formal logic can be defined via model theory . Specifically, a logic α {\displaystyle \alpha } is said to be as strong as a logic β {\displaystyle \beta } if every elementary class in β {\displaystyle \beta } is an elementary class in α {\displaystyle \alpha } . [ 1 ]
This mathe... | https://en.wikipedia.org/wiki/Strength_(mathematical_logic) |
Strength of Materials ( Russian : Проблемы прочности ) is a bimonthly peer-reviewed scientific journal covering the field of strength of materials and structural elements, mechanics solid deformed body. It was established in 1969 and is published by Springer Science+Business Media on behalf of the Pisarenko Institute o... | https://en.wikipedia.org/wiki/Strength_of_Materials_(journal) |
The strength of materials is determined using various methods of calculating the stresses and strains in structural members, such as beams, columns, and shafts. The methods employed to predict the response of a structure under loading and its susceptibility to various failure modes takes into account the properties of ... | https://en.wikipedia.org/wiki/Strength_of_materials |
Methods have been devised to modify the yield strength , ductility , and toughness of both crystalline and amorphous materials. These strengthening mechanisms give engineers the ability to tailor the mechanical properties of materials to suit a variety of different applications. For example, the favorable properties of... | https://en.wikipedia.org/wiki/Strengthening_mechanisms_of_materials |
The Strep-tag system is a method which allows the purification and detection of proteins by affinity chromatography . The Strep-tag II is a synthetic peptide consisting of eight amino acids ( Trp - Ser - His - Pro - Gln - Phe - Glu - Lys ). This peptide sequence exhibits intrinsic affinity towards Strep-Tactin, a speci... | https://en.wikipedia.org/wiki/Strep-tag |
Strep Tamer is a technology which allows the reversible isolation and staining of antigen -specific T-cells. This technology combines a current T-cell isolation method with the Strep-Tag technology. In principle, the T-cells are separated by establishing a specific interaction between the T-cell of interest and a molec... | https://en.wikipedia.org/wiki/Streptamer |
Streptomyces isolates have yielded the majority of human, animal, and agricultural antibiotics, as well as a number of fundamental chemotherapy medicines. Streptomyces is the largest antibiotic -producing genus of Actinomycetota , producing chemotherapy, antibacterial, antifungal , antiparasitic drugs, and immunosuppre... | https://en.wikipedia.org/wiki/Streptomyces_isolates |
In solid mechanics , a stress concentration (also called a stress raiser or a stress riser or notch sensitivity ) is a location in an object where the stress is significantly greater than the surrounding region. Stress concentrations occur when there are irregularities in the geometry or material of a structural compon... | https://en.wikipedia.org/wiki/Stress_concentration |
Stress corrosion cracking ( SCC ) is the growth of crack formation in a corrosive environment. It can lead to unexpected and sudden failure of normally ductile metal alloys subjected to a tensile stress , especially at elevated temperature. SCC is highly chemically specific in that certain alloys are likely to undergo ... | https://en.wikipedia.org/wiki/Stress_corrosion_cracking |
Stress distribution in soil is a function of the type of soil, the relative rigidity of the soil and the footing, and the depth of foundation at level of contact between footing and soil. [ 1 ] The estimation of vertical stresses at any point in a soil mass due to external loading is essential to the prediction of sett... | https://en.wikipedia.org/wiki/Stress_distribution_in_soil |
A stress field is the distribution of internal forces in a body that balance a given set of external forces. Stress fields are widely used in fluid dynamics and materials science . Consider that one can picture the stress fields as the stress created by adding an extra half plane of atoms to a crystal . The bonds are s... | https://en.wikipedia.org/wiki/Stress_field |
In cellular biology , stress granules are biomolecular condensates in the cytosol composed of proteins and RNA that assemble into 0.1–2 μm membraneless organelles when the cell is under stress . [ 1 ] [ 2 ] The mRNA molecules found in stress granules are stalled translation pre-initiation complexes associated with 40S ... | https://en.wikipedia.org/wiki/Stress_granule |
In fracture mechanics , the stress intensity factor ( K ) is used to predict the stress state ("stress intensity") near the tip of a crack or notch caused by a remote load or residual stresses . [ 1 ] It is a theoretical construct usually applied to a homogeneous, linear elastic material and is useful for providing a f... | https://en.wikipedia.org/wiki/Stress_intensity_factor |
Stress majorization is an optimization strategy used in multidimensional scaling (MDS) where, for a set of n {\displaystyle n} m {\displaystyle m} -dimensional data items, a configuration X {\displaystyle X} of n {\displaystyle n} points in r {\displaystyle r} ( ≪ m ) {\displaystyle (\ll m)} -dimensional space is sough... | https://en.wikipedia.org/wiki/Stress_majorization |
In materials science , stress relaxation is the observed decrease in stress in response to strain generated in the structure. This is primarily due to keeping the structure in a strained condition for some finite interval of time hence causing some amount of plastic strain. This should not be confused with creep , whic... | https://en.wikipedia.org/wiki/Stress_relaxation |
Stress resultants are simplified representations of the stress state in structural elements such as beams , plates , or shells . [ 1 ] The geometry of typical structural elements allows the internal stress state to be simplified because of the existence of a "thickness'" direction in which the size of the element is mu... | https://en.wikipedia.org/wiki/Stress_resultants |
Acoustic or stress wave tomography is a non-destructive measurement method for the visualization of the structural integrity of a solid object. It is being used to test the preservation of wood or concrete , for example. The term acoustic tomography refers to the perceptible sounds that are caused by the mechanical imp... | https://en.wikipedia.org/wiki/Stress_wave_tomography |
A stressed member engine is a vehicle engine used as an active structural element of the chassis to transmit forces and torques, rather than being passively contained by the chassis with anti-vibration mounts . Automotive engineers use the method for weight reduction and mass centralization in vehicles . Applications a... | https://en.wikipedia.org/wiki/Stressed_member_engine |
In mechanical engineering , stressed skin is a rigid construction in which the skin or covering takes a portion of the structural load, intermediate between monocoque , in which the skin assumes all or most of the load, and a rigid frame, which has a non-loaded covering. Typically, the main frame has a rectangular stru... | https://en.wikipedia.org/wiki/Stressed_skin |
A stressor is a chemical or biological agent , environmental condition, external stimulus or an event seen as causing stress to an organism . [ 1 ] Psychologically speaking, a stressor can be events or environments that individuals might consider demanding, challenging, and/or threatening individual safety. [ 2 ]
Even... | https://en.wikipedia.org/wiki/Stressor |
In the theory of general relativity , a stress–energy–momentum pseudotensor , such as the Landau–Lifshitz pseudotensor , is an extension of the non-gravitational stress–energy tensor that incorporates the energy–momentum of gravity. It allows the energy–momentum of a system of gravitating matter to be defined. In parti... | https://en.wikipedia.org/wiki/Stress–energy–momentum_pseudotensor |
Stress–strength analysis is the analysis of the strength of the materials and the interference of the stresses placed on the materials, where "materials" is not necessarily the raw goods or parts, but can be an entire system. Stress-Strength Analysis is a tool used in reliability engineering .
Environmental stresses ... | https://en.wikipedia.org/wiki/Stress–strength_analysis |
In classical mechanics , the stretch rule (sometimes referred to as Routh 's rule ) states that the moment of inertia of a rigid object is unchanged when the object is stretched parallel to an axis of rotation that is a principal axis , provided that the distribution of mass remains unchanged except in the direction pa... | https://en.wikipedia.org/wiki/Stretch_rule |
A stretch sensor is a sensor which can be used to measure deformation and stretching forces such as tension or bending . They are usually made from a material that is itself soft and stretchable.
Most stretch sensors fall into one of three categories. The first type consists of an electrical conductor for which the el... | https://en.wikipedia.org/wiki/Stretch_sensor |
Stretchable electronics , also known as elastic electronics or elastic circuits, is a group of technologies for building electronic circuits by depositing or embedding electronic devices and circuits onto stretchable substrates such as silicones or polyurethanes , to make a completed circuit that can experience large s... | https://en.wikipedia.org/wiki/Stretchable_electronics |
In applied mathematics , stretching fields provide the local deformation of an infinitesimal circular fluid element over a finite time interval ∆ t . The logarithm of the stretching (after first dividing by ∆ t ) gives the finite-time Lyapunov exponent λ for separation of nearby fluid elements at each point in a flow. ... | https://en.wikipedia.org/wiki/Stretching_field |
The Stretford process was developed during the late 1950s to remove hydrogen sulfide (H 2 S) from town gas . It was the first liquid phase, oxidation process for converting H 2 S into sulfur to gain widespread commercial acceptance. [ 1 ] Developed by Tom Nicklin [ a ] of the North Western Gas Board (NWGB) and the Clay... | https://en.wikipedia.org/wiki/Stretford_process |
Striations are marks produced on the fracture surface that show the incremental growth of a fatigue crack. A striation marks the position of the crack tip at the time it was made. The term striation generally refers to ductile striations which are rounded bands on the fracture surface separated by depressions or fissur... | https://en.wikipedia.org/wiki/Striation_(fatigue) |
The Stribeck curve is a fundamental concept in the field of tribology . It shows that friction in fluid-lubricated contacts is a non-linear function of the contact load, the lubricant viscosity and the lubricant entrainment speed. The discovery and underlying research is usually attributed to Richard Stribeck [ 1 ] [ 2... | https://en.wikipedia.org/wiki/Stribeck_curve |
In mathematical analysis , Strichartz estimates are a family of inequalities for linear dispersive partial differential equations . These inequalities establish size and decay of solutions in mixed norm Lebesgue spaces . They were first noted by Robert Strichartz and arose out of connections to the Fourier restrictio... | https://en.wikipedia.org/wiki/Strichartz_estimate |
In mathematical writing, the term strict refers to the property of excluding equality and equivalence [ 1 ] and often occurs in the context of inequality and monotonic functions . [ 2 ] It is often attached to a technical term to indicate that the exclusive meaning of the term is to be understood. The opposite is non-s... | https://en.wikipedia.org/wiki/Strict |
In mathematics , strict differentiability is a modification of the usual notion of differentiability of functions that is particularly suited to p-adic analysis . In short, the definition is made more restrictive by allowing both points used in the difference quotient to "move".
The simplest setting in which strict di... | https://en.wikipedia.org/wiki/Strict_differentiability |
Stride was a cloud -based team business communication and collaboration tool , launched by Atlassian on 7 September 2017 to replace the cloud-based version of HipChat . [ 1 ] Stride software was available to download onto computers running Windows , Mac or Linux , as well as Android , iOS smartphones , and tablets . [ ... | https://en.wikipedia.org/wiki/Stride_(software) |
In geology , strike and dip is a measurement convention used to describe the plane orientation or attitude of a planar geologic feature . A feature's strike is the azimuth of an imagined horizontal line across the plane, and its dip is the angle of inclination (or depression angle ) measured downward from horizontal. [... | https://en.wikipedia.org/wiki/Strike_and_dip |
Autologous CD34+ enriched cell fraction that contains CD34+ cells transduced with retroviral vector that encodes for the human ADA cDNA sequence , sold under the brand name Strimvelis , is a medication used to treat severe combined immunodeficiency due to adenosine deaminase deficiency (ADA-SCID). [ 1 ]
ADA-SCID is a ... | https://en.wikipedia.org/wiki/Strimvelis |
In condensed matter physics , a string-net is an extended object whose collective behavior has been proposed as a physical mechanism for topological order by Michael A. Levin and Xiao-Gang Wen . A particular string-net model may involve only closed loops; or networks of oriented, labeled strings obeying branching rules... | https://en.wikipedia.org/wiki/String-net_liquid |
A string bog or string mire is a bog consisting of slightly elevated ridges and islands, with woody plants, alternating with flat, wet sedge mat areas. String bogs occur on slightly sloping surfaces, with the ridges at right angles to the direction of water flow. They are an example of patterned vegetation .
String bo... | https://en.wikipedia.org/wiki/String_bog |
String girdling Earth is a mathematical puzzle with a counterintuitive solution. In a version of this puzzle, string is tightly wrapped around the equator of a perfectly spherical Earth. If the string should be raised 1 metre (3 ft 3 in) off the ground, all the way along the equator, how much longer would the string be... | https://en.wikipedia.org/wiki/String_girdling_Earth |
In machine learning and data mining , a string kernel is a kernel function that operates on strings , i.e. finite sequences of symbols that need not be of the same length. String kernels can be intuitively understood as functions measuring the similarity of pairs of strings: the more similar two strings a and b are, th... | https://en.wikipedia.org/wiki/String_kernel |
A string potentiometer is a transducer used to detect and measure linear position and velocity using a flexible cable and spring-loaded spool. Other common names include string pot , cable-extension transducer , draw wire sensor , and yo-yo sensor .
String potentiometers are composed of four main parts: a measuring c... | https://en.wikipedia.org/wiki/String_potentiometer |
The stringent response , also called stringent control , is a stress response of bacteria and plant chloroplasts in reaction to amino-acid starvation, [ 1 ] fatty acid limitation, [ 2 ] iron limitation, [ 3 ] heat shock [ 4 ] and other stress conditions and growth processes. [ 5 ] The stringent response is signaled by ... | https://en.wikipedia.org/wiki/Stringent_response |
Stringers are filaments of slag left in wrought iron after the production process. In their correct proportions their presence is beneficial, as they help to control the ductility of the finished product, but when the proportion of slag is too high, or when the filaments run at right angles to the direction of tension ... | https://en.wikipedia.org/wiki/Stringer_(slag) |
The strip packing problem is a 2-dimensional geometric minimization problem.
Given a set of axis-aligned rectangles and a strip of bounded width and infinite height, determine an overlapping-free packing of the rectangles into the strip, minimizing its height.
This problem is a cutting and packing problem and is clas... | https://en.wikipedia.org/wiki/Strip_packing_problem |
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