omniomni/omni-engineering huggingface dataset:
Data retrieval. Data retrieval means obtaining data from a database management system (DBMS), like for example an object-oriented database (ODBMS). In this case, it is considered that data is represented in a structured way, and there is no ambiguity in data.

In order to retrieve the desired data the user presents a set of criteria by a query. Then the database management system selects the demanded data from the database. The retrieved data may be stored in a file, printed, or viewed on the screen.

A query language, like for example Structured Query Language (SQL), is used to prepare the queries. SQL is an American National Standards Institute (ANSI) standardized query language developed specifically to write database queries. Each database management system may have its own language, but most are relational.

How the data is presented
Reports and queries are the two primary forms of the retrieved data from a database. There are some overlaps between them, but queries generally select a relatively small portion of the database, while reports show larger amounts of data. Queries also present the data in a standard format and usually display it on the monitor; whereas reports allow formatting of the output however you like and is normally printed.

Reports are designed using a report generator built into the database management system.

See also
 Database model
 Data maintenance
 Relational database
 Query by Example, a database query language devised in the mid-1970s

References

External links
 SQL Statements SQL Statements Tutorial
 SQL Tutorial at W3Schools

Database management systems
Relational database management systems
Le Belge (locomotive). Le Belge was a 2-2-2 Patentee type steam locomotive with tender, built in 1835 by the company founded by John Cockerill in Seraing, Belgium. It was the first steam railway locomotive built in Belgium, and was built under license to a design by Robert Stephenson & Co.

Design and operation
The locomotive was built for the first main line on the European mainland, the Brussels-Mechelen line.

Replicas
A replica locomotive was built at the workshops of Boissellerie Cognaut for the 150th anniversary in 1980 of the formation of Belgium. Another replica was built in 1885 and is now displayed at Train World, the museum of the National Railways of Belgium, in Schaerbeek, Brussels.

See also
 Adler (locomotive)
 De Arend (locomotive)
 John Cockerill (company, 1825–1955)

References

Further information

External links

Early steam locomotives
Steam locomotives of Belgium
Cockerill locomotives
Standard gauge locomotives of Belgium
2-2-2 locomotives
Railway locomotives introduced in 1835
Bubbler cylinder. A Bubbler cylinder is a component of a unit for the metal organic chemical vapor deposition (MOCVD). They are devices that are used for conveying electronic grade metalorganic compounds from a liquid or solid precursor into a usable vapor.

Apparatus 
The container of the Bubblers is similar to the construction of a gas washing bottle and used for the protected storage of metalorganic compounds to exclude air (oxygen, moisture). The bubbler has a supply pipe and a sampling tube. The inlet tube ends just before the bottom of the tube. In this tube, an inert gas is introduced, which bubbles through the liquid chemical; a solid chemical will sublime. The mixture of the controlled inert gas and the vaporized chemical leaves the cylinder into a downstream reaction vessel. The temperature is controlled by a thermostat, so that a defined, constant steam pressure can be achieved. The supply of the often expensive and sensitive chemical is controlled by the regulated flow of inert gas and the temperature of the bubbler, resulting in a given vapor pressure of the chemical.

The tube between the bubbler and the reactor has to have a higher temperature than the bubble, otherwise the precursor would condense in the tube and therefore uncontrolled droplets would be passed into the reaction vessel. If this happens with a solid precursor, it could plug the line.

Application 
For example, during the production of high brightness light emitting diodes, gallium or other group III-V elements are epitaxially deposited onto a single crystal silicon substrate.  The gallium is introduced into the MOVPE reactor chamber via a vapor.  This vapor is generated by bubbling an inert carrier gas (such as nitrogen or argon) through a cylinder with a dip tube through a metalorganic precursor, such as trimethylgallium.  The inert carrier gas and the metalorganic vapor is then introduced into the MOVPE (or MOCVD) reactor chamber during the production of high brightness LEDs.

External links 
 Description of a Bubbler System
 Liquid injection system based on Mass Flow Controller

Semiconductor fabrication equipment
Australian Committee on Computation and Automatic Control. The Australian Committee on Computation and Automatic Control (ANCCAC) was formed in 1958, with Professor John Bennett as the Foundation Chairman. It ran a computing conferences in Australia from 1960 and in 1961 was accepted as a member of the International Federation for Information Processing (IFIP). The Australian Computer Society took over these roles in 1969 and ANCCAC was dissolved.

ANCCAC Prize 
The ANCCAC Prize was established by ACS in 1969, to commemorate Australia's computer pioneers. A medal and a cash prize is awarded each year for the paper published each year in the ACS Journal.

ANCCAC Prize recipients 
1991 Swatman P.A., Swatman P.M.C. and Everett J.E. (1990) "Stages of Growth of an Innovative Software House: an Additional Criterion for Software Package Selection", Australian Computer Journal, Vol. 22, No. 7, August, 88-98.

2002 Sale, A. (2001) "Broadband Internet Access in Regional Australia", Journal of Research and Practice in Information Technology 33(4): 346-355.

2003 C. A. Middleton (2002) "Who needs a `Killer App`? Two Perspectives on Content in Residential Broadband Networks". Journal of Research and Practice in Information Technology 34(2): 67-81.

External links
ACS web site
ACS ANCCAC Award

Professional associations based in Australia
Information technology organizations based in Oceania
Organizations established in 1958
1958 establishments in Australia
Organizations disestablished in 1969
No. 146 Wing RAF. No. 146 Wing RAF was a formation of the Royal Air Force during the Second World War. It comprised No. 193 Squadron RAF, No. 197 Squadron RAF, No. 257 Squadron RAF, No. 263 Squadron RAF and No. 266 Squadron RAF.

From April 1944 RAF Needs Oar Point was a base for Hawker Typhoon fighter-bomber squadrons of No. 146 Wing of the 2nd Tactical Air Force supporting the Normandy landings. RAFWeb.org however lists the actual establishment date of the wing as 12 May 1944.

The squadrons operated Hawker Typhoons in ground attack operations under the command of John Robert Baldwin.

On 6 June 1944, the day of the Normandy landings, the wing was under the command of No. 20 (Fighter) Sector, No. 84 Group RAF.

The wing was disbanded on 7 September 1945.

References

Wings of the Royal Air Force in the Second World War
Military units and formations disestablished in 1945
Nathan J. Lindsay. Nathan James Lindsay (May 24, 1936 – May 25, 2015) was a major general in the United States Air Force and an astronaut. He worked on the Titan III and the Air Force Satellite Control Network.

Early years
Lindsay was born in Monroe, Wisconsin, and earned both a bachelor of science degree and a master of science degree in mechanical engineering from the University of Wisconsin–Madison. He then earned a master of science degree in systems management from the University of Southern California.

Military career
While studying at the University of Wisconsin–Madison, Lindsay earned his commission through the Air Force Reserve Officer Training Corps. He joined the Air Force in 1959, and in 1980 he was named director of operations support and interrogations in the Space Systems Division and in 1982 he was named assistant deputy commander for space operations. Lindsay worked on the Titan III and the Air Force Satellite Control Network. In 1987 he became Director of Special Projects in the Office of the Secretary of the Air Force, and was promoted to major general in 1988. Lindsay retired from the Air Force effective January 1, 1993.

Lindsay died on May 25, 2015, one day after his 79th birthday.

Awards
Awards he has received include the Defense Superior Service Medal, the Legion of Merit with oak leaf cluster, the Meritorious Service Medal with oak leaf cluster, the Joint Service Commendation Medal, the Air Force Commendation Medal with oak leaf cluster, the Master Astronaut Badge, and the Master Missile Badge.

References

1936 births
2015 deaths
American astronauts
Military personnel from Wisconsin
People from Monroe, Wisconsin
Recipients of the Defense Superior Service Medal
Recipients of the Legion of Merit
United States Air Force generals
University of Wisconsin–Madison College of Engineering alumni
USC Viterbi School of Engineering alumni
Peter Goodhew. Peter John Goodhew  (born 3 July 1943, in London) is an electron microscopist who has published extensively on metallic and semiconducting materials and has authored or co-authored several widely used books on transmission (and scanning transmission) electron microscopy. He was the leader of the UK SuperSTEM project at the STFC Daresbury Laboratory for ten years and has been Dean of Engineering and Pro-Vice-Chancellor at the University of Liverpool.

During his career at the Universities of Surrey and Liverpool he established the MATTER computer-based learning project and was the founding Director of the UK Centre for Materials Education (UKCME), one of the Subject Centres of the Higher Education Academy.

Goodhew was appointed Commander of the Order of the British Empire (CBE) in the 2017 New Year Honours for services to Engineering and Education.

Books
Goodhew is the author of the 2010 book Teaching Engineering, published by UKCME.

References

External links
 The website of the MATTER project
 The official site of UKCME
 The University of Liverpool
 The Higher Education Academy
 Science and Technology Facilities Council
 The SuperSTEM Laboratory

1943 births
Living people
Microscopists
Fellows of the Royal Academy of Engineering
Commanders of the Order of the British Empire
Purcell Sea Sprite. The Purcell Sea Sprite was an experimental homebuilt glider aircraft.  It was intended to be operated by experienced pilots under 200 feet attached to a tow boat. Created by Thomas H. Purcell Jr. of Raleigh, North Carolina, the aircraft weighed about 175 pounds and could be built from plans for about $400 (in 1975 dollars).  There is a Sea Sprite on display at the North Carolina Aviation Museum in Asheboro, North Carolina.

References

Glider aircraft
1970s United States experimental aircraft
Marinens Flyvebaatfabrikk M.F.3. The Marinens Flyvebaatfabrikk M.F.3 was a reconnaissance floatplane built by the Royal Norwegian Navy Air Service aircraft factory Marinens Flyvebaatfabrikk in 1917. The aircraft was financed by extraordinary appropriations during the First World War and served until October 1924.

Background
The M.F.3 was the last reconnaissance aircraft of the Maurice Farman type built by the Marinens Flyvebaatfabrikk. In the autumn of 1916 Captain Halfdan Gyth Dehli proposed building a series of four aircraft for reconnaissance purposes. The proposal was approved by the Commanding Admiral of the Royal Norwegian Navy on 30 October 1916 and by the Norwegian Ministry of Defence on 8 November of the same year. The production of the four aircraft was financed through the extraordinary appropriations to the Norwegian Armed Forces after the outbreak of the First World War.

Production
The production of the four M.F.3 aircraft was the first to be completed solely at the Marinens Flyvebaatfabrikk and took place during 1917. The M.F.3 production marked the completion of full-scale production facilities at the factory in Horten. The factory at first had a production capacity of four aircraft per year. The four M.F.3s were given numerals between F.14 and F.20.

The M.F.3 type had a larger gondola and a more powerful engine than the earlier types used by the Royal Norwegian Navy Air Service and was considered well suited to Norwegian conditions. The powerful engine made the aircraft able to take off from ice and snow, and tests at this were carried out at the Royal Norwegian Navy's main base of Karljohansvern in Horten during the winter of 1917–1918. The M.F.3's load carrying ability also enabled the Royal Norwegian Navy Air Service to carry out its first experiments at dropping torpedoes from an aircraft. M.F.3 F.14 carried out test drops of the Royal Norwegian Navy's Type 2 and Type 3 35 cm torpedoes during the autumn of 1918. The torpedo tests carried out in 1918, and further tests in 1923, led to the Royal Norwegian Navy Air Service deciding to acquire dedicated torpedo bombers. In 1924 the 'Douglas DT-2B was ordered from the Douglas Aircraft Company in California.

Service
The type's first flight occurred when F.14 took off on 11 April 1917. F.16 first flew on 10 May 1917, F.18 on 3 July 1917 and F.20 on 4 November 1917. All four M.F.3s flew with the First Aerial Group, operating out of Horten. F.14 left the First Aerial Group in August 1918, the other three M.F.3s continuing to serve in the unit until 14 December 1918.
None of the four aircraft were lost to accidents, F.14, F.16 and F.18 being written off on 10 February 1921 and F.20 on 2 October 1924. F.20 had suffered damages in a crash in the inner harbour of Horten on 22 September 1924.

Specifications

References

Bibliography
 

1910s Norwegian military reconnaissance aircraft
MF03
Single-engined pusher aircraft
Floatplanes
Biplanes
Aircraft first flown in 1917
Lulzacite. Lulzacite is a strontium-containing phosphate mineral with the chemical formula Sr2Fe2+(Fe2+,Mg)2Al4(PO4)4(OH)10.

The mineral was first described in 2000 from quartzite deposits () at Saint-Aubin-des-Châteaux, Loire-Atlantique, France, and is named after Y. Lulzac, a French geologist who discovered the mineral. In this deposit, lulzacite occurs within quartz and siderite veinlets at quartzite–limestone contacts. Other minerals found in the veinlets include apatite, goyazite, and pyrite.

Lulzacite crystallizes in the triclinic system with P space group. It is isostructural with jamesite (Pb2Zn(Fe2+,Zn)2Fe3+4(AsO4)4(OH)10).

References

Phosphate minerals
Strontium minerals
Iron(II) minerals
Magnesium minerals
Aluminium minerals
Triclinic minerals
Minerals in space group 2
Renault Samsung Motors Gallery. The Renault Samsung Motors Gallery is a museum owned by the Korean carmaker Renault Samsung Motors.

The museum was opened as the Reuno Samseong Munhwagwan (Hangul:르노삼성 문화관) or Renault Samsung Culture Center  in June 2001. It was renovated in September 2006, adopting its current name.  For its tenth anniversary were made further improvements. 
 
The facilities feature SM7 / QM5 cutaway models to display, cutaway engines (M9R diesel, VQ, etc.), previous and special models (SM5, SM3, Seoul Motor Show exhibition cars, etc.) and diagrams of  production process. The museum also displays various projects of the Renault-Nissan Alliance.

There are several road safety programs targeted at children. The museum has a page where can be made virtual tours through the factory. There also are guided factory tours which must be reserved.

References

External links
Busan Plant Cyber Tour

Transport museums in South Korea
Museums in South Korea
Automotive museums
Turbay T-1 Tucán. The Turbay T-1 Tucán was an Argentine single-engined single-seat light touring monoplane designed by Alfredo Turbay and built by . It first flew in April 1943.

Design
The Tucán is a parasol-wing braced monoplane with a fixed cantilever type landing gear, tailwheel and powered by a  Continental A65 air-cooled piston engine. It had an enclosed cockpit just aft of the wing trailing-edge with a sliding canopy.

Specifications

See also

References

Bibliography

1940s Argentine civil utility aircraft
Sfreddo & Paolini aircraft
Parasol-wing aircraft
Single-engined tractor aircraft
Aircraft with fixed conventional landing gear
Aircraft first flown in 1943
Single-engined piston aircraft
TR-106. The TR-106 or low-cost pintle engine (LCPE) was a developmental rocket engine designed by TRW under the Space Launch Initiative to reduce the cost of launch services and space flight.  Operating on LOX/LH2 the engine had a thrust of 2892 kN, or 650,000 pounds, making it one of the most powerful engines ever constructed.

Overview
The goal of the development was to produce a large, low-cost, easy-to-manufacture booster engine. The design used a single element coaxial pintle injector, a robust type of injector. It also used ablative cooling of the combustion chamber and nozzle instead of the more costly to manufacture regenerative cooling.

The use of the pintle injector allows the engine thrust to be widely throttleable, as was the case for the lunar module descent engine.

Status
Tom Mueller was a lead engineer for development of the LCPE, a 650,000 lbf thrust LOX/LH2 engine.
In the summer of 2000, this LCPE was successfully hot fire tested at 100 percent of its rated thrust as well as at a 65 percent throttle condition at NASA's John C. Stennis Space Center in Mississippi.
TRW changed the pintle injector configuration three times during testing to explore the engine's performance envelope; engineers also replaced the ablative chamber once while the engine was on the test stand—demonstrating the LCPE's ease of operation.
Test results demonstrated that the engine was stable over a wide variety of thrust levels and propellant ratios.

Development of the engine was temporarily discontinued with the cancellation of the Space Launch Initiative. In 2002 TRW was acquired by Northrop Grumman and development of a LOX/RP-1 engine (TR-107) continued, under contract to NASA, for potential use on next-generation launch and space transportation vehicles.

Legacy
Tom Mueller became TRW vice president of propulsion.  In 2002, Elon Musk asked Mueller to join him as a founding member of SpaceX.

Technology lessons from the Low Cost Pintle Engine project were used in the development of the SpaceX Merlin engine.  Mueller joined SpaceX in 2002, becoming its head of propulsion, along with other TRW staffers.  The turbopump, meanwhile, was contracted to Barber-Nichols, Inc., which derived their pump from their work on the FASTRAC turbopump.  After SpaceX accused Northrop Grumman, TRW's parent, of letting engineers supervising SpaceX under a Pentagon contract use that information on Northrop's own rocket technology, Northrop Grumman then sued for theft of trade secrets. The dueling suits were settled in early 2005.

See also
 Raptor

References

External links

TRW Engine Development, 2000, AIAA 

Rocket engines using hydrogen propellant
Rocket engines of the United States
Gilchrist–Thomas process. The Gilchrist–Thomas process or Thomas process is a historical process for refining pig iron, derived from the Bessemer converter. It is named after its inventors who patented it in 1877: Percy Carlyle Gilchrist and his cousin Sidney Gilchrist Thomas. By allowing the exploitation of phosphorous iron ore, the most abundant, this process allowed the rapid expansion of the steel industry outside the United Kingdom and the United States.

The process differs essentially from the Bessemer process in the refractory lining of the converter. The latter, being made of dolomite () fired with tar, is basic (MgO giving  anions), whereas the Bessemer lining, made of packed sand, is acidic ( accepting  anions) according to the Lux-Flood theory of molten oxides. Phosphorus, by migrating from liquid iron to molten slag, allows both the production of a steel of satisfactory quality, and of phosphates sought after as fertilizer, known as "Thomas meal". The disadvantages of the basic process includes larger iron loss and more frequent relining of the converter vessel.

After having favored the spectacular growth of the Lorraine iron and steel industry, the process progressively faded away in front of the Siemens-Martin Open-hearth furnace, which also used the benefit of basic refractory lining, before disappearing in the mid-1960s: with the development of gas liquefaction and the cryogenic separation of O2 from air, the use of pure oxygen became economically viable. Even if modern pure oxygen converters all operate with a basic medium, their performance and operation have little to do with their ancestor.

Bibliographic sources 

 G. Reginald Bashforth, The manufacture of iron and steel, vol. 2: Steel production, London, Chapman & Hall Ltd, 1951, 461 p.
 Thomas Turner (dir.), The metallurgy of iron: By Thomas Turner...: Being one of a series of treatises on metallurgy written by associates of the Royal school of mines, C. Griffin & company, limited, coll. "Griffin's metallurgical series", 1908, 3rd ed., 463 p. 
 Walter MacFarlane, The principles and practice of iron and steel manufacture, Longmans, Green, and Co, 1917, 5th ed.
 R.W. Burnie, Memoir and letters of Sidney Gilchrist Thomas, Inventor, John Murray, 1891
 William Tulloch Jeans, The Creators of the Age of Steel, 1884, 356 p. 
 Hermann Wedding (translated from German by: William B. Phillips, Ph.D. & Ernst Prochaska), Wedding's basic Bessemer process ["Basische Bessemer - oder Thomas-Process"], New York Scientific Publishing Company, 1891, 224 p.
 Jean Duflot, Encyclopædia Universalis, "Sidérurgie"

British inventions
Steelmaking
Metallurgical processes
Chemistry