omniomni/omni-engineering huggingface dataset:
SMS (disambiguation). SMS  is short message service, a form of text-messaging communication based on phones.

SMS may also refer to:

Science and technology
 Smith–Magenis syndrome, a genetic developmental disorder
 SMS (gene), which encodes the spermine synthase enzyme
 Serotonin modulator and stimulator, a type of drug
 Synchronous Meteorological Satellite, a NASA program
 Simultaneous multiple surface, in non-imaging optics
 Stiff-person syndrome (SPS), also known as stiff-man syndrome (SMS)

Computing
 Sega Master System, video game console
Sudden Motion Sensor, on Apple notebook computers
 Spectral modeling synthesis, an acoustic modeling approach
 Super Mario Sunshine, video game

Hardware
 Standard Modular System, a packaging standard for IBM second generation (discrete transistor) computers prior to the S/360.

Software
 SMS (hydrology software), surface-water modeling software
 Supervisor Monitoring Scheduler, a Unix/Linux job scheduler
 Systems Management Server, later System Center Configuration Manager, by Microsoft
 Data Facility Storage Management Subsystem (MVS), central component of z/OS, optional in some older forms of MVS
 Data Facility Storage Management Subsystem (MVS)#System Managed Storage, a facility in DFSMS/MVS

Arts and entertainment
SMS (band), a Ukrainian pop band
 SMS (illustrator), British comic book illustrator
 "SMS" (Bangerz), a song from the Miley Cyrus album Bangerz
 S.M.S. portfolios, artists' portfolios
 Shorty McShorts, the host of Shorty McShorts' Shorts
 S. M. Subbaiah Naidu, an Indian music director
 :SMS: Sin Miedo a Soñar, Spanish television series

Film
 Stop Making Sense, a 1984 concert film by Talking Heads
 Siva Manasula Sakthi, a 2009 Tamil film
 Siva Manasulo Sruthi, a 2012 Telugu film
 SMS (2008 film), a Malayalam-language Indian film

Organizations
 Party of Modern Serbia (Stranka moderne Srbije), a political party in Serbia
 Youth Party of Slovenia (Stranka mladih Slovenije), a Slovenian political party
 Scientific Micro Systems, producer of the SMS300 microcontroller
 SMS Audio, a US headphone manufacturer
 Santa Monica Studio, an American video game developer
 Marine Service Squadron
 The Swedish Mathematical Society

Education
 Special Music School, New York City, US
 Saint Mary's School (Raleigh, North Carolina), US
 Shawnee Mission South High School, in the Shawnee Mission School District, Kansas

Transportation
 Safety management system, in the workplace
 Sainte Marie Airport (IATA code), Madagascar
 Seiner Majestät Schiff (His Majesty's Ship), ship prefix in the Kaiserliche Marine and K.u.K. Kriegsmarine
 Scheduled Maintenance System, of New York City Subway rolling stock

Other uses
 Sawai Mansingh Stadium, a cricket stadium in India
 Skolt Sami language (ISO 639 alpha-3 language code)
 SMS, nonwoven fabrics with spun and melted layers

See also
 SM (disambiguation)
Sodium laureth sulfate. Sodium laureth sulfate (SLES), an accepted contraction of sodium lauryl ether sulfate, also called sodium alkylethersulfate, is an anionic detergent and surfactant found in many personal care products (soaps, shampoos, toothpaste, etc.) and for industrial uses. SLES is an inexpensive and very effective foaming agent. SLES, sodium lauryl sulfate (SLS), ammonium lauryl sulfate (ALS), and sodium pareth sulfate are surfactants that are used in many cosmetic products for their cleaning and emulsifying properties. It is derived from palm kernel oil or coconut oil. In herbicides, it is used as a surfactant to improve absorption of the herbicidal chemicals and reduces time the product takes to be rainfast, when enough of the herbicidal agent will be absorbed.

Its chemical formula is . Sometimes the number represented by n is specified in the name, for example laureth-2 sulfate. The product is heterogeneous in the number of ethoxyl groups, where n is the mean. Laureth-3 sulfate is the most common one in commercial products.

Production 
SLES is prepared by ethoxylation of dodecyl alcohol, which is produced industrially from palm kernel oil or coconut oil. The resulting ethoxylate is converted to a half ester of sulfuric acid, which is neutralized by conversion to the sodium salt. The related surfactant sodium lauryl sulfate or SLS (also known as sodium dodecyl sulfate or SDS) is produced similarly, but without the ethoxylation step. SLS and ammonium lauryl sulfate (ALS) are commonly used alternatives to SLES in consumer products.

Safety 
Tests in the US indicate that it is safe for consumer use. The Australian government's Department of Health and Ageing and its National Industrial Chemicals Notification and Assessment Scheme (NICNAS) have determined that SLES does not react with DNA.

Irritation 
Like many other detergents, SLES is an irritant. It has been shown that SLES causes eye or skin irritation in experiments conducted on animals and humans. The related surfactant SLS is also a known irritant.

1,4-Dioxane contamination 
Products containing SLES can be contaminated with up to 300 ppm of 1,4-dioxane, a by-product of SLES production. 1,4-Dioxane is classified by the International Agency for Research on Cancer as a Group 2B carcinogen: possibly carcinogenic to humans. The United States Food and Drug Administration (FDA) recommends that these levels be monitored, and encourages manufacturers to remove 1,4-dioxane, though it is not required by federal law.

See also 
 Sodium lauroyl sarcosinate
 Sodium dodecyl sulfate
 Sodium myreth sulfate
 Sodium pareth sulfate
 Magnesium laureth sulfate
 Sodium dodecylbenzenesulfonate
 1,4-Dioxane, a common impurity of SLES

References

External links 
 

Cosmetics chemicals
Ethers
Household chemicals
Organic sodium salts
Anionic surfactants
Sulfate esters
Dodecyl compounds
Skycar. Skycar may refer to:
 Pitts Sky Car, an early (1928) attempt at vertical take-off flight by US inventor John W. Pitts.
 Stout Skycar, a series of four one-off light aircraft designed by William Bushnell Stout in the 1930s.
 Moller Skycar M400 a prototype American flying car
 OMA SUD Skycar an Italian four-seat piston engined aircraft
 Parajet Skycar a British parafoil dune buggy

See also 

 Aerocar (disambiguation)
 Aircar (disambiguation)
 Flying car (disambiguation)
SDL. SDL may refer to:

Computing
 Specification and Description Language, defined by ITU
 Simple DirectMedia Layer, a C programming language library
 Services Description Language, a Microsoft fore-runner to Web Services Description Language
 Scene Description Language, used by POV-Ray
 Structure Definition Language of OpenVMS
  Security Development Lifecycle, a software development process

Organizations
 Party of the Democratic Left (Slovakia) (SDĽ, 1990–2004)
 Former Party of the Democratic Left (Czech Republic)
 Party of the Democratic Left (2005), SDĽ, Slovakia
 Scottish Defence League, a far-right anti-Muslim organisation
 Social Democratic League of America, 1917–1920
 Software Development Laboratories, the original name of what is today known as Oracle Corporation
 Soqosoqo Duavata ni Lewenivanua, a political party in Fiji
 Space Dynamics Laboratory, at Utah State University, US
 SDL plc (formerly SDL International), a UK translation tool company

Other uses
 Saudi Digital Library
 Shielded data link connector, an electrical signal connector
 Sexual division of labour
 Sound Digital - also known as SDL National, a digital radio multiplex in the United Kingdom
 Standard Deontic Logic, an extension of classical propositional logic
 Sundsvall-Härnösand Airport, by IATA airport code
 Scottsdale Airport, by FAA airport code

See also
 Software development life cycle (SDLC)
Second-system effect. The second-system effect or second-system syndrome is the tendency of small, elegant, and successful systems to be succeeded by over-engineered, bloated systems, due to inflated expectations and overconfidence.

The phrase was first used by Fred Brooks in his book The Mythical Man-Month, first published in 1975. It described the jump from a set of simple operating systems on the IBM 700/7000 series to OS/360 on the 360 series, which happened in 1964.

See also 

 Anti-pattern
 Feature creep
 Inner-platform effect
 Osborne effect
 Sophomore slump
 Unix philosophy
 Examples in information technology: IPv6 deployment, Taligent, Workplace OS, Copland, Rhapsody

References

External links 
 
 
 
 

Software quality

de:Vom Mythos des Mann-Monats#Das Problem des zweiten Systems
S7G reactor. The S7G reactor was a prototype naval reactor designed for the United States Navy to provide electricity generation and propulsion on warships.  The S7G designation stands for:

 S = Submarine platform
 7 = Seventh reactor designed by the contractor
 G = General Electric was the contracted designer

This prototype design was a land-based nuclear reactor that did not use control rods.  It was tested in the late 1970s and early 1980s at the Modifications and Additions to a Reactor Facility (MARF) plant located at the Knolls Atomic Power Laboratory's Kesselring Site in Ballston Spa, New York.  It consisted of an experimental reactor core installed in a modified S5W reactor plant.

Design and operation
Instead of the movable hafnium-based control rods used in all of the other United States Naval reactors, reactivity in the S7G core was controlled by stationary gadolinium-clad tubes partially filled with water. Water could be pumped from the portion of the tube inside the core up to a reservoir above the core, or allowed to flow back down into the tube. A higher water level in the tube slowed more neutrons in the core, causing more neutron capture by the gadolinium tube cladding rather than by the uranium fuel, thus lowering the power level.

The system was configured with the pump running continually to keep the water level low; on loss of electrical power, all of the water would flow back into the tube, shutting down the reactor. As with all small pressurized water reactors, the design also had the advantage of negative feedback: an increase in reactor power caused the water to expand, leading to reduced thermalization of neutrons and lowering absorption by the fuel, therefore lowering the power. Thus, changes in the average coolant temperature, notably from the steam demand of engine throttles, naturally maintains reactor power without intervention from a reactor operator.

The S7G reactor was never used on a ship. In the late 1980s the S7G core was replaced with the experimental DMC (Developmental Materials Core)

References

United States naval reactors
Tunneling. Tunneling or tunnelling may refer to:

 Digging tunnels (the literal meaning)
Hobby tunneling
 Quantum tunneling, the quantum-mechanical effect where a particle crosses through a classically forbidden potential energy barrier
 Tunneling (fraud), a fraud committed by a company's own management or by major shareholders
 Tunneling protocol, transmitting one computer network protocol that is encapsulated inside another network protocol

See also
 
 
 Tunnel (disambiguation)
Tanker. Tanker may refer to:

Transportation 
 Tanker, a tank crewman (US)
 Tanker (ship), a ship designed to carry bulk liquids
 Chemical tanker, a type of tanker designed to transport chemicals in bulk
 Oil tanker, also known as a petroleum tanker
 LNG carrier, a ship designed for transporting liquefied natural gas
 Tank car, a railroad freight car designed for carrying bulk liquids
 Tank truck, a heavy road vehicle designed for carrying bulk liquids
 Fire tanker, a firefighting vehicle used to carry large amounts of water to a fire
 Air tanker, an aircraft used in Aerial firefighting
 Tanker (aircraft), an aircraft designed for in-flight refueling
 Tanker 910, a specific aircraft used to drop water or retardant on fires in California
 Tanker Pacific, a Singapore-based shipping company

Other 
 André Tanker (1941–2003), Trinidadian musician and composer
 Tanker (album), a 1988 album by Bailter Space
 Tanker boot, a laceless military boot
 Tanker, titular hippopotamus character of the Tinker and Tanker book series
 Tankers (film), a 2018 Russian war film
 Tanker Brewery, an Estonian brewery

See also 
 Tank (disambiguation)
TCA. TCA may refer to:

Chemistry and biochemistry
 Toxin complex a, an insecticidal toxin complex produced by Photorhabdus luminescens bacteria
 Tricarboxylic acid cycle, an alternate name for the citric acid cycle pathway in cellular metabolism
 Trichloroacetic acid, chemical used to precipitate protein in serum
 2,4,6-Trichloroanisole, cause of cork taint in wine
 Tricyclic antidepressant, a class of medications
 TCA, a codon for the amino acid serine

Culture and media
 Taiwanese Cultural Association
 Tekeyan Armenian Cultural Association, a network of Armenian cultural organisations
 Television Critics Association
 The Canadian Amateur, radio amateur magazine
 Tribune Content Agency, a syndication company owned by Tribune Publishing
 Triple Crown of Acting is a term used in the American entertainment industry to describe actors who have won a competitive Academy Award, Emmy Award, and Tony Award in the acting categories
 Twentieth Century Animation, the animation division of 20th Century Studios

Economics and finance
 Transaction cost analysis
 Total cost of acquisition
 True cost accounting

Education
 The Classical Academy (Colorado), Colorado Springs, US
 Trinity Christian Academy (Deltona, Florida), US
 Trinity Christian Academy (Jackson, Tennessee), US

Organizations
 Taipei Computer Association
 The Consulting Association
 Total Community Action
 Trans-Canada Air Lines, predecessor to Air Canada
 Train Collectors Association
 Transportes Carga Aérea, a defunct Brazilian airline

Politics
 Taiwan Constitution Association, a political party in Taiwan
 EU–UK Trade and Cooperation Agreement, between the UK and the EU (2020)
 The Competition Authority (Ireland) (2002–2014)

Other uses
 Terminal control area, a volume of controlled airspace
 Topology change acknowledgement, a message in the 802.1D Spanning Tree Protocol (STP)
 Transportation Corridor Agencies, a toll road authority in Orange County, California
 Traumatic cardiac arrest, due to trauma
 Tennant Creek Airport, IATA airport code "TCA"
 Turks and Caicos Islands, country code
 Tropical Cyclone Advisory, tropical forecast service for international aviation safety
TCP. TCP may refer to:

Science and technology
 Transformer coupled plasma
 Tool Center Point, see Robot end effector
Topologically close pack (TCP) phases, also known as Frank-Kasper phases

Computing
 Transmission Control Protocol, a fundamental Internet standard
 Telephony control protocol, a Bluetooth communication standard
 FAST TCP, a TCP congestion avoidance algorithm
 TCP/IP, the Internet protocol suite

Medicine
 TCP (antiseptic)
 Tenocyclidine, an anesthetic drug
 Toxin-coregulated pilus, a protein that allows Vibrio cholerae to adhere to enterocytes
 Transcutaneous pacing

Chemistry
 1,2,3-Trichloropropane, an industrial solvent
 Thermal conversion process, a depolymerization process for producing crude oil from waste
 Tocopherols, a class of methylated phenols
 Tricalcium phosphate, an anticaking agent
 Trichlorophenol, any organochloride of phenol that contains three covalently bonded chlorine atoms
 Tricresyl phosphate, an organophosphate compound

Organizations
 Taiwan Communist Party, a political party in Taiwan
 Text Creation Partnership, an archival digitization effort at the University of Michigan, US
 The Children's Place, a US retailer
 The Clergy Project, US nonprofit helping clergy leave the ministry
 Top Cow Productions, a US comics publisher
 Trading Corporation of Pakistan, a Pakistani government organization
 Terceiro Comando Puro, a Brazilian criminal organization
 T.C. Pharmaceutical Industries Co. Ltd., manufacturer of Krating Daeng

Other uses
 Taba International Airport (IATA code), Egypt
 Three card poker, a card game
 Two-candidate-preferred vote, in the Australian electoral system
 Tax Compliance and Planning in the Uniform Certified Public Accountant Examination (United States)
Tape-out. In electronics and photonics design, tape-out or tapeout is the final stage of the design process for integrated circuits or printed circuit boards before they are sent for manufacturing. The tapeout is specifically the point at which the graphic for the photomask of the circuit is sent to the fabrication facility. The name originates from the use of magnetic tape to send the data to the manufacturing facility.

Procedures involved 
The term tapeout currently is used to describe the creation of the photomask itself from the final approved electronic CAD file. Designers may use this term to refer to the writing of the final file to disk or CD and its subsequent transmission to the semiconductor foundry; however, in current practice the foundry will perform checks and make modifications to the mask design specific to the manufacturing process before actual tapeout. These modifications of the mask data include: 
 Chip finishing which includes custom designations and structures to improve manufacturability of the layout. Examples of the latter are a seal ring and filler structures.
 Producing a reticle layout with test patterns and alignment marks. 
 Layout-to-mask preparation that enhances layout data with graphics operations and adjusts the data to mask production devices. This step includes resolution enhancement technologies (RET), such as optical proximity correction (OPC) which corrects for the wave-like behavior of light when etching the nano scale features of the most modern integrated circuits.

A modern integrated circuit has to go through a long and complex design process before it is ready for tape-out. Many of the steps along the way use software tools collectively known as electronic design automation (EDA).  The design must then go through a series of verification steps collectively known as "signoff" before it can be taped-out. Tape-out is usually a cause for celebration by everyone who worked on the project, followed by trepidation awaiting the first article, the first physical samples of a chip from the manufacturing facility (semiconductor foundry).

First tapeout is rarely the end of work for the design team. Most chips will go through a series of iterations, called "spins", in which errors are detected and fixed after testing the first article. Many different factors can cause a spin, including:
The taped-out design fails final checks at the foundry due to problems manufacturing the design itself.
The design is successfully fabricated, but the first article fails functionality tests.

Naming  
The roots of the term can be traced back to the time when paper tape and later magnetic tape reels were loaded with the final electronic files used to create the photomask at the factory.

A synonym used at IBM is RIT (release interface tape). IBM differentiates between RIT-A for the non-metallic structures and RIT-B for the metal layers.
A synonym used at Texas Instruments is PG (pattern generation).

See also
 Mask data preparation
 Semiconductor fabrication
 GDSII

References

Electronic design
USB (disambiguation). USB stands for Universal Serial Bus, a computer bus standard.

USB may also refer to:

Science and technology
 Upper sideband, of an AM signal
 Unified S-band communication for the Apollo program
 Unseptbium, symbol Usb, a theorized chemical element

Organisations
 Save Bessarabia Union (Uniunea Salvați Basarabia), Moldovan political party
 Simón Bolívar University (Venezuela), (Universidad Simón Bolívar), Caracas, Venezuela
 Simón Bolívar University (Mexico), (Universidad Simón Bolívar), Mexico City
 Union Savings Bank, Connecticut, US
 University Hospital of Basel, (Universitätsspital Basel), Switzerland
 U.S. Bancorp, NYSE ticker symbol
 USB Corporation, life science products company
 United Soybean Board, US
 Universal Studios Beijing, China
 Université de Saint-Boniface, Winnipeg, Manitoba, Canada

See also
 USB hardware
 USB hub
 Wireless USB
 USB flash drive
Variable. The term Variable is relevant to several contexts, and is especially important to mathematics and computer science. Scientists and engineers will often use mathematical variables in formulae and equations, such as ; they will also have their own special uses of the term.

The term Variable can also occur in other contexts, such as entertainment.

Variable in computer science 

 Variable (computer science), a symbolic name associated with a value and whose associated value may be changed

Variable in mathematics 

 Variable (mathematics), a symbol that represents a quantity in a mathematical expression, as used in many sciences

Variable in the physical and social sciences 

 Variable (research), a logical set of attributes
 Variable star, a type of astronomical star

Other kinds of variable 

 "The Variable", an episode of the television series Lost

See also 
 Variability (disambiguation)
Wireless Valley. Wireless Valley is a term that was coined by Professor Ted Rappaport in 1990 when he was a faculty member at Virginia Tech, and was used to describe the Roanoke/Blacksburg, Virginia region and the potential of research to create spin-out companies. In 1990 he and his students founded TSR Technologies, a company that made software-defined cellular and paging intercept and drive test equipment that was sold to Allen Telecom in 1993, and in 1995 Wireless Valley Communications, a company that pioneered the creation of computer-aided wireless network prediction and management software that was sold to Motorola in late 2005. This term was later used as nickname to describe several regional clusters of companies in the information technology sector, in analogy to California's Silicon Valley:

 One such cluster is located in northern Stockholm, Sweden. This also included a number of companies that saw themselves as belonging to the new information based economy. Ericsson, the telecommunications supplier, has one of its main design centers in the Stockholm suburb of Kista.
 Finland also has a high-tech area in Espoo, sometimes called "Wireless Valley", based on Nokia and Nokia Siemens Networks. There is a secondary hub located in Oulu which is the base for other wireless specialist companies too.
 A third such cluster consists of the telecommunications formed in San Diego, based on Qualcomm
 A new high-tech program has been initialed in Nanjing, China, called 'China Wireless valley'. It is based on two national key laboratories of Southeast University.

References

Telecommunications economics
High-technology business districts in the United States