omniomni/omni-engineering huggingface dataset:
Leap. Leap or LEAP may refer to:

Computing and technology
 Leap (computer worm)
 LEAP (programming language)
 Leap Motion, a motion-sensing technology company
 Leap Wireless, a provider of wireless services
 Lightweight Extensible Authentication Protocol, for wireless computer networks
 Local-electrode atom probe, an atomic-resolution microscope
 LEAP, the Low Emissions Analysis Platform energy systems modeling framework

Education
 LEAP High School, a high school for English language students
 Leap (education and training), a project in Suffolk, England
 Louisiana Educational Assessment Program (LEAP), including the integrated Louisiana Educational Assessment Program (iLEAP)

Entertainment
Leap (Drop Trio album), a 2004 album by Drop Trio
Leap (James Bay album), a 2022 album by James Bay
Leap (music), a melodic interval
Ballerina (2016 film), a French/Canadian animated film also known as Leap!
Leap (film), a 2020 Chinese biographical film, based on the China women's national volleyball team
"Leap" (Agents of S.H.I.E.L.D.)

Places
 Leap, County Cork, a village in Ireland
 Randolph's Leap, a country area in Moray, Scotland

Transportation and aerospace
 CFM International LEAP, a turbofan jet engine
 LEAP, ICAO code for Empuriabrava Airfield in Girona province in Spain
 LEAPTech (Leading Edge Asynchronous Propeller Technology), a NASA project to demonstrate distributed electric propulsion for future aircraft
 Lightweight Exo-Atmospheric Projectile, a lightweight miniaturized kinetic kill vehicle

Other uses
 Law Enforcement Action Partnership, crime and law employees who advocate policies in the name of public safety
 Law Enforcement Availability Pay, a type of premium pay for federal law enforcement officers
 Leap Manifesto, Canadian activist manifesto during 2015 campaign
 LEAPS (finance), long-term stock options
 Leap2020, a think tank analyzing from a European perspective
 LEAP, Listen, Empathize, Agree, and Partner(ship). help method for some mental illnesses.

See also
 The Leap (disambiguation)
 Giant Leap (disambiguation)
 Great Leap (disambiguation)
 Leap of faith (disambiguation)
 Leapfrog (disambiguation)
 Leap second
 Leap year (disambiguation)
 LEEP (disambiguation)
 Quantum leap, an Atomic electron transition
Peter Mattis. Peter Mattis is an American computer programmer, entrepreneur, and business executive. He is the CTO and co-founder for Cockroach Labs, a company he co-founded in 2014. His work as a programmer includes launching GNU Image Manipulation Program (GIMP) while still in college, and assisting the source code development of CockroachDB, the namesake software of Cockroach Labs.

Early life and education
Mattis attended the University of California at Berkeley. While still a student in 1995, he developed the first version of GNU Image Manipulation Program (GIMP), along with his roommate Spencer Kimball. Mattis was also a member of a student club at Berkeley called the eXperimental Computing Facility (XCF). Mattis graduated from Berkeley in 1997 with a B.S. in Electrical Engineering and Computer Science.

According to Mattis in 1999: 

On free software and the motivations to write it and what makes good and enduring free software:

Career
Mattis was previously employed as an engineer for Google, and is credited for his work Google Servlet Engine as well as helping spearhead Colossus, a new version of the Google File System.

In 2013, Mattis launched the company Viewfinder along with Kimball and Brian McGinnis, formerly of Lehman Brothers. The company developed an app that allowed social media users to share photos, chat privately, and search photo history without leaving the app. The company was acquired by Square, Inc. in December 2013. Mattis moved to Square's New York City office where he became a senior member of the company's East Coast team.

While at Google, Mattis used a database known as Bigtable, and followed the development of its next generation, known as Spanner. The database organizes data between thousands of servers to allow Google applications to stay online, even if an entire data center were to go offline. Mattis wanted to use this software but found there was nothing available outside of Google as either closed or open source that was similar.

He launched CockroachDB as an open source project on GitHub with Kimball, along with ex-Google Reader team member Ben Darnell. They later formed the company Cockroach Labs in order to accelerate development of the CockroachDB software. Mattis serves as the company's chief technical officer and also contributes to the source code development of CockroachDB.

Personal life
Mattis is active in CrossFit and was named CrossFit South Brooklyn's athlete of the month in January 2014.

References

External links
 Cockroach Labs official website

American computer programmers
Living people
Year of birth missing (living people)
GTK
Banaras Locomotive Works. The Banaras Locomotive Works (BLW), formerly Diesel Locomotive Works (DLW), is a production unit of Indian Railways situated in Varanasi, Uttar Pradesh. DLW was renamed BLW in 2020.

History
Founded in 1956 as the DLW, it manufactures locomotives which are variants based on the original ALCO. In July 2006, it outsourced manufacture of some locomotives to Parel Workshop, Central Railway, Mumbai. DLW was renamed BLW in October 2020.

In March 2019, it developed the country's first bi-mode locomotive, the WDAP-5. BLW today produces primarily the electric locomotives WAP-7 & WAG-9.

Market
Besides the Indian Railways, BLW regularly exports locomotives to other countries such as Bangladesh, Sri Lanka, Nepal, Mali, Senegal, Tanzania, Angola, Mozambique, and Vietnam and also to a few users within India, such as ports, large power and steel plants and private railways.

See also 
 Chittaranjan Locomotive Works, Asansol
 Patiala Locomotive Works, Patiala
 Diesel Locomotive Factory, Marhowrah
 Electric Locomotive Factory, Madhepura
 Integral Coach Factory, Chennai
 Railway Coach Factory, Bhopal
 Modern Coach Factory, Raebareli
 Rail Coach Factory, Kapurthala
 Rail Wheel Factory, Yelahanka
 Rail Wheel Plant, Bela
 Titagarh Wagons, Titagarh
 List of locomotive builders by countries

References

External links
 Company website

 
Locomotive manufacturers of India
Buildings and structures in Varanasi
Manufacturing plants in Uttar Pradesh
Economy of Varanasi
1961 establishments in Uttar Pradesh
Acorn (disambiguation). An acorn is the nut of an oak tree.

Acorn or ACORN may also refer to:

Computing
 Acorn (software), a graphic editor for macOS
 Acorn Computers (1978–1998), a manufacturer of computers
 Acorn, the development code name for the IBM 5150 PC.
 Acorn Computers (2006), a manufacturer of Windows-only computers
 ACORN-NS, the Atlantic Canada Organization of Research Networks - Nova Scotia, computer network

Mathematics
 ACORN (PRNG), a robust pseudorandom number generator (PRNG) introduced by R.S.Wikramaratna in 1989

Companies and organizations
 ACORN International, a federation of community-based activist organisations, see also Association of Community Organizations for Reform Now
 Acorn DVD, a home media publisher and distributor
 Acorn Energy, a company investing in electricity and security
 Acorn Records, American record label created in 1950
 Acorn Stores, a clothing retail company
 Acorn TV, an American subscription streaming service
 Acorns (company), an American financial technology and financial services company that specializes in micro-investing and robo advice

People
 Fred Acorn (born 1961), American retired football player
 Herbert H. Acorn (1868–1939), Canadian politician
 John Acorn (active 2000s), Canadian naturalist
 Milton Acorn (1923–1986), Canadian poet
 William Acorn (1915–1966), Canadian politician
 Acorn Dobson (1905–2004), British motorcycle speedway rider
 Earnie Shavers (1944–2022), American boxer who was nicknamed "The Acorn"

Places
 Acorn, Arkansas
 Acorn, Oakland, California, a housing complex
 Acorn Community, Virginia
 Acorn, Virginia

Other
 Acorn (demographics), a geodemographic classification system
 Acorn nut, a domed connecting piece
 Acorn squash
 Acute Care of at-Risk Newborns (ACoRN), a Canadian neonatal resuscitation program
 Evil Acorn, a character in Conker's Pocket Tales.
 The  (;   ), anatomical structure in mammals

See also
 Acorns (disambiguation)
 The Acorn (disambiguation)
 Eggcorns, which got their name from a mishearing of the word acorn.
Paste (rheology). In physics, a paste is a substance that behaves as a solid until a sufficiently large load or stress is applied, at which point it flows like a fluid. In rheological terms, a paste is an example of a Bingham plastic fluid.

Pastes typically consist of a suspension of granular material in a background fluid.  The individual grains are jammed together like sand on a beach, forming a disordered, glassy or amorphous structure, and giving pastes their solid-like character.  It is this "jamming together" that gives pastes some of their most unusual properties; this causes paste to demonstrate properties of fragile matter. 

Examples include starch pastes, toothpaste, mustard, and putty.

In pharmacology, paste is a basic pharmaceutical form. It consists of a fatty base (e.g., petroleum jelly) and at least 25% of a solid substance (e.g., zinc oxide). Pharmaceutical pastes are typically intended for external application to the skin. They are usually thick and do not melt at physiologic temperatures.

References 

Materials
Drug delivery devices
Dosage forms
Lockheed Martin UK. Lockheed Martin UK Limited (LMUK) is a wholly owned subsidiary of Lockheed Martin, headquartered in London. The company was created on 1 July 1999, combining all of Lockheed Martin's UK operations into one company.

Divisions
Below is a list of LMUK's businesses and selected activities

Aeronautics
C-130J Hercules
JSF
Distribution Technologies
Integrated Systems
UK Ground Based Air Defence (GBAD)
Merlin HM Mk.1 – Prime contractor and systems integrator for the Merlin helicopter
Merlin Capability Sustainment Plus – Mid-Life Update of Merlin
Integrated Systems & Solutions
Turrets for Ajax and Warrior
Integrated Transport Systems
Missiles & Fire Control
GBAD
Javelin
Longbow attack radar and weapon system for WAH-64 Apache
Global Training and Logistics
Technology Services
Atomic Weapons Establishment
Transportation and Security Solutions
Space Systems
Trident missile
Information Technology
NATS – Air Traffic Management Systems
Ministry of Justice – Service Integration & Management (SIAM)

References

External links
 LMUK website

Aerospace companies of England
Technology companies established in 1999
British companies established in 1999
British subsidiaries of foreign companies
1999 establishments in England
Companies based in London
CSU/DSU. A CSU/DSU (channel service unit/data service unit) is a digital-interface device used to connect data terminal equipment (DTE), such as a router, to a digital circuit, such as a Digital Signal 1 (DS1) T1 line. The CSU/DSU implements two different functions. The  channel service unit (CSU) is responsible for the connection to the telecommunication network, while the data service unit (DSU)  is responsible for managing the interface with the DTE. A CSU/DSU can have an external connection point or it can be integrated into a modular card installed in a router.

A CSU/DSU is the equivalent of the modem for an entire LAN. The DCE, commonly a modem or CSU/DSU, is the device used to convert the user data from the DTE into a form acceptable to the WAN service provider transmission link.

WAN interface
The WAN Interface Card (WIC) may contain an integrated CSU/DSU that can be inserted into a router slot. An example of a WIC is the 1-port 56/64-kbit/s DSU/CSU WIC (WIC-1DSU-56K4) by Cisco Systems. DTE is generally a router, but can also be a terminal, computer, printer, or fax machine if they connect directly to the service provider network.

References

Telecommunications equipment
Dynamic routing. In computer networking, dynamic routing (DR), also called adaptive routing (AR),
is a process where a router can forward data via a different route for a given destination based on the current conditions of the communication circuits within a system. The term is most commonly associated with data networking to describe the capability of a network to 'route around' damage, such as loss of a node or a connection between nodes, as long as other path choices are available. Dynamic routing allows as many routes as possible to remain valid in response to the change.

Systems that do not implement dynamic routing are described as using static routing, where routes through a network are described by fixed paths. A change, such as the loss of a node, or loss of a connection between nodes, is not compensated for. This means that anything that wishes to take an affected path will either have to wait for the failure to be repaired before restarting its journey, or will have to fail to reach its destination and give up the journey.

All protocols
There are several routing protocols that can be used for dynamic routing. Routing Information Protocol (RIP) is a distance-vector routing protocol that prevents routing loops by implementing a limit on the number of hops allowed in a path from source to destination. Open Shortest Path First (OSPF) uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs). Intermediate System to Intermediate System (IS-IS) determines the best route for data through a packet-switched network. Interior Gateway Routing Protocol (IGRP) and its advanced form Enhanced Interior Gateway Routing Protocol (EIGRP) are used by routers to exchange routing data within an autonomous system.

Alternate paths 
Many systems use some next-hop forwarding protocol—when a packet arrives at some node, that node decides on-the-fly which link to use to push the packet one hop closer to its final destination.

Routers that use some adaptive protocols, such as the Spanning Tree Protocol, in order to "avoid bridge loops and routing loops", calculate a tree that indicates the one "best" link for a packet to get to its destination.
Alternate "redundant" links not on the tree are temporarily disabled—until one of the links on the main tree fails, and the routers calculate a new tree using those links to route around the broken link.

Routers that use other adaptive protocols, such as grouped adaptive routing, find a group of all the links that could be used to get the packet one hop closer to its final destination.
The router sends the packet out any link of that group which is idle.
The link aggregation of that group of links effectively becomes a single high-bandwidth connection.

Outside of computer networks
Dynamic routing in found the brain in relation between sensory and mnemonic signals and decision making, and is a subject of studies in neuroscience.

See also
 Convergence (routing)
 InfiniBand
 Routing in delay-tolerant networking

References

External links
Session-based routing holds the key to the Internet’s future

Routing
Barrows Bearhawk. The Bearhawk, now also called the Bearhawk Four, is an American amateur-built aircraft, designed by Bob Barrows and produced by Bearhawk Aircraft of Fairview, OKlahoma. The aircraft is supplied as a kit or as plans for amateur construction.

Design and development
The Bearhawk was designed in the early 1990s as a personal project by Barrows to carry aircraft engines for delivery as freight. It features a strut-braced high-wing, a four-seat enclosed cabin that is  wide and accessed by doors, fixed conventional landing gear and a single engine in tractor configuration.

The aircraft fuselage is made from welded steel tubing covered in doped aircraft fabric, while the wings are made from aluminum sheet. Its  span wing employs a NACA 4412 mod airfoil, has an area of  and mounts flaps. The aircraft's recommended engine power range is  and standard engines used include the  Lycoming O-360 and   Lycoming O-540 four-stroke powerplants. Construction time from the supplied kit is 1200 hours.

The prototype was fitted with a  Lycoming O-360 burning automotive fuel, but in August 2023, the option of fitting the DeltaHawk DHK180 type certified, two-stroke  diesel engine was added.

Operational history
By October 2016, 77 examples had been registered in the United States with the Federal Aviation Administration and 11 with Transport Canada.

Variants

Bearhawk (4-Place Bearhawk)
Four seat model with a cabin  wide and a gross weight of , with 75 reportedly completed and flown by December 2011. Employs a NACA 4412 airfoil.
Bearhawk Bravo
Improved model introduced at AirVenture in July 2016. The wing has a  greater span and  greater area and employs a Riblett 30-413.5 airfoil, which gives a  higher top speed while retaining a low stall speed. The redesigned airframe also uses aluminum fuselage formers, window sills and door sills, replacing the steel formers and sills in the original model, which provides better corrosion resistance and less weight. The landing gear struts are made of heavy-wall round cross section tubing rather than streamlined tubing, which provides more resistance to sideload failure.
Patrol
Two-seats in tandem model with a cabin  wide and a gross weight of , with three reportedly completed and flown by December 2011.
Companion
Two-seats in side-by-side configuration model, with a gross weight of . First customer deliveries in October 2019.

Specifications (Bearhawk)

References

External links

Homebuilt aircraft
Single-engined tractor aircraft
1990s United States civil utility aircraft
Bearhawk
High-wing aircraft
Single-engined piston aircraft
Aircraft with fixed conventional landing gear
USRA. USRA may refer to:

 Undergraduate Student Research Award of the Natural Sciences and Engineering Research Council (NSERC USRA), a prestigious research award for top Canadian undergraduate researchers
União dos Sindicatos Revolucionarios de Angola (Union of Revolutionary Trade Unions of Angola)
United Slot Racers Association, a slot racing organizations
United States Racquetball Association, former name of USA Racquetball
United States Railroad Administration (1917–1920), the nationalized rail system during World War I
USRA standard locomotives built by this administration
United States Railway Association (1974–1987), the corporation that oversaw the creation of Conrail
Universities Space Research Association, a Washington, D.C.–based nonprofit corporation under the auspices of the National Academy of Sciences
Airchain. In broadcast engineering for radio or television, the airchain or transmission chain (UK) (sometimes air chain (US) or just chain (UK)) is the path or route an audio or video signal takes on its way through a radio station or television station.

The airchain begins with cameras, microphones, CD players, turntables, telephone hybrids, video tape recorders, satellite and other remote feeds, and other input devices in the studio and control room.  These feed into a mixing console, possibly via a router.  The output then goes to an audio processor, and finally to the transmitter, feedline, and antenna.  Often, there is a studio-transmitter link via radio or broadband dedicated circuit (usually T1 or E1 line).  

The airchain may be all-analogue, all-digital, or most likely some hybrid of the two.

All-analog airchains typically use cables terminated in XLR connectors between each device. All-digital airchains also often use XLR connectors, except carrying AES/EBU digital audio instead. Alternatively, some digital airchains have significant portions of audio carried over TCP/IP, in which case Ethernet is used.

References

Broadcast engineering
ABB (disambiguation). ABB is a Swedish-Swiss high-tech engineering multinational corporation.

Aviation
 ABB, former IATA code of RAF Abingdon
 IATA airport code of Asaba International Airport in Delta State, Nigeria

ABB may also refer to:

abb, ISO 639-3 code for the Bankon language, a Bantu language of Cameroon
ABB, reporting mark of the Akron and Barberton Belt Railroad 
αΒΒ, a deterministic global optimization algorithm
Æbbe of Coldingham, an English saint known as Abb
Azərbaycan Beynaxalq Bankı, the International Bank of Azerbaijan
ABB Grain, an Australian agribusiness
African Blood Brotherhood, a former radical black liberation group in the United States
Alex Boncayao Brigade, a Filipino communist death squad
The Allman Brothers Band, an American rock band
Archives of Biochemistry and Biophysics, a peer-reviewed scientific periodical
 Activity Based Budgeting
 ABB (banana), a clade of banana
 Aussie Broadband

People with the surname
Gustav Abb (1886–1945), German librarian
Skutterudite. Skutterudite is a cobalt arsenide mineral containing variable amounts of nickel and iron substituting for cobalt with the ideal formula CoAs3. Some references give the arsenic a variable formula subscript of 2–3. High nickel varieties are referred to as nickel-skutterudite, previously chloanthite. It is a hydrothermal ore mineral found in moderate to high temperature veins with other Ni-Co minerals. Associated minerals are arsenopyrite, native silver, erythrite, annabergite, nickeline, cobaltite, silver sulfosalts, native bismuth, calcite, siderite, barite and quartz. It is mined as an ore of cobalt and nickel with a by-product of arsenic.

The crystal structure of this mineral has been found to be exhibited by several compounds with important technological uses.

The mineral has a bright metallic luster, and is tin white or light steel gray in color with a black streak. The specific gravity is 6.5 and the hardness is 5.5–6. Its crystal structure is isometric with cube and octahedron forms similar to that of pyrite. The arsenic content gives a garlic odor when heated or crushed.

Skutterudite  was discovered in Skuterud Mines, Modum, Buskerud, Norway, in 1845. Smaltite is an alternative name for the mineral. Notable occurrences include Cobalt, Ontario, Skuterud, Norway, and Franklin, New Jersey, in the United States. The rare arsenide minerals are classified in Dana's sulfide mineral group, even though it contains no sulfur.

Crystal structure

The crystal structure of the skutterudite mineral was determined in 1928 by Oftedahl to be cubic, belonging to space group Im-3 (number 204). The unit cell can be considered to consist of eight smaller cubes made up of the Co atoms. Six of these cubes are filled with (almost) square planar rings of As, each of which is oriented parallel to one of the unit cell edges. The As atoms then form octahedra with Co in the center.

In crystallographic terms, the Co atoms occupy the 8c sites, while the As atoms occupy the 24g sites. The position of the Co atoms within the unit cell is fixed, while the positions of the As atoms are determined by the parameters x and y. It has been shown that for the As-rings to be fully square, these parameters must satisfy the Oftedahl relation x + y = 1/2. Any deviation from this relation yields a rectangular configuration of the As atoms; indeed, this is the case for all known compounds with this structure, and the As atoms do not form a perfect octahedron.

Together with the unit cell size and the assigned space group, the aforementioned parameters fully describe the crystal structure of the material. This structure is often referred to as the skutterudite structure.

Applications
Materials with a skutterudite structure are studied as a low cost thermoelectric material with low thermal conductivity. See also Skutterudite thermoelectrics.

References 

 A. Kjekshus and T. Rakke. Compounds with skutterudite type crystal-structure .3. Structural data for arsenides and antimonides. Acta Chemica Scandinavica Series A 28 (1): 99-103 1974.

Cobalt minerals
Arsenide minerals
Cubic minerals
Minerals in space group 204