omniomni/omni-engineering huggingface dataset:
Lyulka AL-7. The Lyulka AL-7 was a turbojet designed by Arkhip Mikhailovich Lyulka and produced by his Lyulka design bureau. The engine was produced between 1954 and 1970.

Design and development
The AL-7 had supersonic airflow through the first stage of the compressor. TR-7 prototype, developing 6,500 kgf (14,330 lbf, 63.7 kN) of thrust, was tested in 1952, and the engine was initially intended for Ilyushin's Il-54 bomber. The afterburning AL-7F version was created in 1953. In April 1956, the Sukhoi S-1 prototype, equipped with the AL-7F, exceeded Mach 2 at 18,000 m (70,900 ft), which led to the production of the Su-7 "Fitter" and Su-9 "Fishpot", equipped with this engine. Later, the engine was adopted for the Tu-128 "Fiddler" in 1960, and for the AS-3 "Kangaroo" cruise missile. The Beriev Be-10 jet flying boat used a non-afterburning AL-7PB with stainless steel compressor blades.

Variants
AL-7Non-afterburning military turbojet.
AL-7F Afterburning versions of the AL-7F, typically, the AL-7F1-100 used in the Sukhoi T-49.

Specifications (AL-7F)

See also

References

Notes

Bibliography

 Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989.

External links

 AL-7 on LeteckeMotory.cz (cs)

AL-7
1950s turbojet engines
Tucker XP-57. Tucker XP-57 was the designation of a lightweight fighter which was proposed to the United States Army Air Corps (USAAC) in 1940. Nicknamed the "Peashooter", it was developed by the Tucker Aviation Corporation under Preston Tucker, who later became famous for the Tucker '48 Sedan.

To minimize weight, the aircraft was to have a steel tubular frame with aluminum skin and plywood wings. The inline-8 engine, designed by Harry Miller of Indy 500 racing fame, was to sit behind the pilot in a configuration similar to the P-39 Airacobra. The USAAC ordered an XP-57 prototype. When design was delayed due to financial problems in the company, the contract was allowed to lapse. No production aircraft was built because the USAAC was moving towards larger fighters and had lost interest in the project.

Prototype specifications (XP-57)

See also

References

 
 American Combat Planes, Ray Wagner, Third Enlarged Edition, Doubleday, 1982.
 The American Fighter, Enzo Angelucci and Peter Bowers, Orion Books, 1987.

Tucker P-57
Single-engined piston aircraft
Low-wing aircraft
Aircraft with retractable tricycle landing gear
HTN. HTN can refer to:

Computing
 Hierarchical task network, planning formalism in artificial intelligence
 "Homesteading the Noosphere",  essay on computer programming

Medicine 
 Hypertension

Organisations
 Home Theater Network, defunct movie subscription service
 Houghton Mifflin, now part of Houghton Mifflin Harcourt
 Hughes Television Network, defunct American television network

Transport 
 Hammonton station, New Jersey, United States
 Hathiyan railway station, Pakistan
 Hatton railway station, Sri Lanka
 Hatton (Warwickshire) railway station, England
 Hotan Airport, Xinjiang, China
 Houten railway station, Netherlands
Sequential transmission. Sequential transmission may refer to:

 Automated manual transmission, a type of mechanical power transmission; which is based on a conventional manual transmission, but is controlled by a computer, and can operate fully automatically.
 Semi-automatic transmission, a method of mechanical power transmission used in motor vehicles; where part of its operation is automated (namely the clutch system), but the driver's input is still required to manually change gears
 Sequential manual transmission, a type of mechanical power transmission; commonly used in motorcycles, race cars, and certain road cars
 Serial communication, a method of data transmission in telecommunication and computing

See also
 Automatic transmission
Bit specification. In computing, bit specification may mean:

 Computer hardware or software capabilities or design features expressed in terms of bit counts. Higher bit specification (e.g. 16-bit vs. 8-bit) usually indicates better performance. Examples:
 Color depth
 Computer bus size
 Processor register size
 Sound quality
 Specification or datasheet where the meaning of individual bits in a larger, for example byte-length, message is described. Bit specifications are often required to document low-level device control or data transmission protocols. See bit manipulation.

See also 
 Functional specification
Crotram. Crotram is a Croatian consortium of two companies, which produces the first Croatian low-floor tram (the TMK 2100 and the TMK 2200). It consists of Končar and TŽV Gredelj, both from Zagreb. Although theoretically both companies are of the same importance in the consortium, Gredelj produces only 13% of the worth of the tram, producing only bodies for the vehicle, and Končar made general projects for the tram, electrics, electronics, and final assembly. Initially, Đuro Đaković factory was also the part of the consortium, but they have eventually left it soon after the project started, and the development and production of hydraulics and bogie mechanics was transferred to German companies SAMES Hydro-Systemtechnik GmbH & Co. KG and Henschel Antriebstechnik GmbH.

TMK 2100 

TMK 2100 is a tramcar vehicle produced by Croatian companies Končar and TŽV Gredelj, between 1994 and 2003, using parts from TMK 201. The prototype was made in 1994, and serial production began in 1997. 16 trams have been ordered and delivered for the City of Zagreb.

TMK 2200 

The TMK 2200 (also known as NT 2200) is a low-floor tram that operates in Zagreb, the capital of Croatia. ZET (tr. Zagreb Electric Tramways, the city public transportation company), ordered 70 vehicles in 2003 after Crotram consortium won the tender on the ground of lower price, competing with offers by Siemens (Combino) and AnsaldoBreda (Sirio).

TMK 2200 K

TMK 2200-K is a shorter version of TMK 2200. Two have been delivered, 14 to be delivered to Liepāja, and ZET planning to order 60 more of them. TMK 2200-K is listed as TMK 2300 in ZET register.

References

Bibliography 
Helsinki City Transport

External links 

 CROTRAM - Unofficial home and fan page
 News, information, and more 
 Gallery with pictures of TMK 2200 and  more Croatian trams
 Končar official web site
 Končar Electric Vehicles Inc. - trams
 Sames official web site
 The video of TMK 2200 - beware poor pronunciation
 Another Gallery with more pictures
 Photo gallery of TMK 2200 being tested in Helsinki

Tram vehicles of Croatia
Manufacturing companies based in Zagreb
Croatian brands
Computer-aided quality assurance. Computer-aided quality assurance (CAQ) is the engineering application of computers and computer-controlled machines for the planning and implementation of the quality of products.

This includes:
Measuring equipment management
Goods inward inspection
Vendor rating
Attribute chart
Statistical process control (SPC)
Documentation

Additional themes:
Advanced Product Quality Planning (APQP)
Failure mode and effects analysis (FMEA)
Dimensional tolerance stack-up analysis using product and manufacturing information (PMI) on CAD models
Computer aided inspection with coordinate-measuring machines (CMM)
Comparison of data obtained by mean of 3D scanning technologies of physical parts against CAD models

References

Product lifecycle management
British Rail Class D3/6. The British Rail Class D3/6 were diesel shunters designed in 1934/5 by English Electric for the London, Midland and Scottish Railway. (LMS)

Prototype
Between 1931 and 1934, the LMS ordered nine prototype 0-6-0 diesel shunters of different designs. The last of these was based on the English Electric 6K of  diesel engine, with a long bonnet ("nose"), 0-6-0 wheel arrangement, EE 6K prime mover and two axle-hung traction motors. It was built by Hawthorne Leslie to English Electric design. Similar prototypes were later built for the Southern Railway (SR1-3), Great Western Railway (GWR2), and London and North Eastern Railway (8000-8004) and this configuration was repeated in most subsequent large diesel shunters built in Britain, such as the British Rail Class 11 and even more numerous British Rail Class 08 that entered service after World War II.

After modification and uprating to , the prototype was taken into LMS stock in 1936 and numbered 7079, (later British Railways number 12002. It was withdrawn and scrapped in 1956.

Production series
Ten further locomotives of the same design, with minor alterations and uprated to , were built in 1935 and taken into LMSR stock in 1936. These were numbered 7069-7078 by the LMS. Three of these later became British Railways numbers 12000–12002 (previously 7074/76/79 respectively). They spent their working lives allocated to Crewe South Locomotive Depot.

The remainder of the class were sold to the British War Department in 1940 and were shipped to France during World War II. Of these, the first production locomotive, No. 7069, survived the war and was used in industrial service in France. It is being restored at the Berkeley Vale Railway.

Footnotes

References

See also
 LMS diesel shunters

London, Midland and Scottish Railway locomotives
War Department locomotives
D003.06
C locomotives
Hawthorn Leslie and Company locomotives
Railway locomotives introduced in 1934
Standard gauge locomotives of Great Britain
Diesel–electric locomotives of Great Britain
Shunting locomotives
Norman Larsen. Norman Bernard Larsen (1923—1970) was an American industrial chemist.

Biography
He was born in Chicago.

Larsen is sometimes credited with inventing the WD-40 formula in 1953 but this is not certain.  The WD-40 company website and other books and newspapers credit him but according to Iris Engstrand, a historian of San Diego and California at the University of San Diego, it was actually Iver Norman Lawson (also an engineer born in Chicago at around the same time as Norm Larsen), and the names became confused over time.  The formula was kept as a trade secret, so no patent was ever filed listing inventors.

Larsen left the Rocket Chemical Company (the original producers of WD-40) in 1958 after a verbal agreement between Rocket and a distributor fell apart; the distributor set up CRC Industries in Philadelphia to directly compete with Rocket and Larsen left to lead it. CRC was originally called Corrosion Reaction Consultants, Inc. Its first product was called CRC Corrosion Inhibitor, also called 5–56.

By 1968 Larsen had left CRC and had founded a company called Surcon, Inc. headquartered in Collegeville, PA, which also had developed a chemical anti-corrosion formula eventually called "Free 'n Kleen"; the company used it to remove corrosion from the wreck of a Spanish galleon found off the Florida coast.  By 1970 the product was being used by Sikorsky Aircraft Corp in its helicopters and was also used by the military to keep machine guns working.

Larsen died in December 1970 at home at the age of 47, of an apparent heart attack.

References 

1923 births
1970 deaths
20th-century American chemists
Scientists from Chicago
American people of Norwegian descent
20th-century American inventors
Explicit parallelism. In computer programming, explicit parallelism is the representation of concurrent computations using primitives in the form of operators, function calls or special-purpose directives. Most parallel primitives are related to process synchronization, communication and process partitioning. As they seldom contribute to actually carry out the intended computation of the program but, rather, structure it, their computational cost is often considered as overhead.

The advantage of explicit parallel programming is increased programmer
control over the computation. A skilled parallel programmer may take advantage of explicit parallelism to produce efficient code for a given target computation environment. However, programming with explicit parallelism is often difficult, especially for non-computing specialists, because of the extra work and skill involved in developing it.  

In some instances, explicit parallelism may be avoided with the use of an optimizing compiler or runtime that automatically deduces the parallelism inherent to computations, known as implicit parallelism.

Programming languages that support explicit parallelism
Some of the programming languages that support explicit parallelism are:
Ada
Ease
Erlang
Java
JavaSpaces
Message Passing Interface
Occam
Parallel Virtual Machine

References 

Parallel computing
Plastic canvas. Plastic canvas is a craft material of lightweight plastic with regularly spaced holes in imitation of embroidery canvas. It is also commonly known as vinyl weave.

Plastic canvas is typically used as a foundation for needlepoint or other canvas work embroidery, usually in acrylic or wool knitting yarn.  Due to its rigidity, it is useful for creating 3-dimensional objects such as tissue box covers, small jewelry boxes, handbags, and other decorative objects.  

Plastic canvas is manufactured in many colors and with various size holes for different thicknesses of yarn. As with textile canvas, these are described in count – that is, 10-count plastic canvas has 10 holes per linear inch.  Typical sizes are 5-, 7-, 10-, and 14 count. It is most readily available in A4 size sheets but pre-made shapes such as circles, triangles as well as novelty shapes (e.g. dinosaur, bird, cross) are also available.

Plastic canvas is also employed in teaching needlepoint and cross stitch to children, since its riged structure does not require the use of a hoop or frame.

Other uses
Plastic canvas is also used by some for making animal mascot heads as a frame to build faux fur upon to make the head of the mascot, some people stick the plastic canvas together with glue but this is not the only method of construction or sticking together a frame of a mascot head.

External links
Learn the three types of tent stitch for plastic canvas

Embroidery equipment
Type 205 submarine. The Type 205 was a class of German diesel-electric submarines. They were single-hull vessels optimized for the use in the shallow Baltic Sea. The Type 205 is a direct evolution of the Type 201 class with lengthened hull, new machinery and sensors. The biggest difference though is that ST-52 steel is used for the pressure hull since the Type 201's non-magnetic steel proved to be problematic. Type 206, the follow-on class, finally succeeded with non-magnetic steel hulls.

The Type 205 was in service with the Royal Danish Navy until 2004, in which it was known as Narhvalen class. The Danish boats differed slightly from the German ones to meet special Danish demands. Responsible for the design and construction was the Ingenieurkontor Lübeck (IKL) headed by Ulrich Gabler.

List of boats

These last two boats were built by the Howaldtswerke, in Denmark at The Naval Dockyard, Copenhagen.

Notes:
 U-1 was given back to Nordseewerke and was used to test an experimental closed-cycle diesel air-independent propulsion system before being scrapped
 U-11 was transformed to a Type 205A double-hulled boat (the outer hull filled with polystyrene foam to make it unsinkable) and used as torpedo target
 U-12 was used for sonar trials as Type 205B

References

Further reading

See also

 Kobben class submarine

External links
 Submarines of the Narhvalen class - Danish Naval History
Association for Manufacturing Technology. The Association for Manufacturing Technology (AMT) is a trade association based in McLean, Virginia, in the United States. It was founded as the National Machine Tool Builders' Association (NMTBA) in 1902. It represents and promotes the interests of American providers of manufacturing machinery and equipment.

As machine tools advanced, NMTBA launched the first National Machine Tool Builders’ Exposition in 1927, which would later be rebranded IMTS- International Manufacturing Technology Show.

The AMT’s most visible activity is its management of the International Manufacturing Technology Show (IMTS), which is held on even-numbered years at McCormick Place in Chicago, Illinois.

Examples of activities fostered by the AMT include:

 Standardization of the taper used on Computer Numerically Controlled (CNC) milling machines. See Machine taper for a discussion of NMTB tapers.
 Initiation of MTConnect, a standard for open web-based communication to manufacturing equipment.Updated on ClearOS' web page: ClearOS Pedigree
 Publication of recommended standards for manufacturing related activities.
 Hosting and participation in standards committees, including NFPA 79, ANSI B11 Safety Standards.
 Annual Technology Forums in cooperation with the National Center for Manufacturing Sciences.
 Representing manufacturing interests in Washington.
 Providing manufacturing statistical data for publications.

AMT also supports their membership with technology centers and representative offices in China, India, Poland, Mexico and Brazil.

Other AMT Events 

AMT puts on a number of events throughout the year. While IMTS takes place in every even year, AMT also hosts the MFG Meeting and MTForecast Conference every year.

See also
 EMO (trade show)
 International Manufacturing Technology Show

References

Trade associations based in the United States
Manufacturing in the United States
Technology trade associations
Bert Amato. Bert Amato is an investor and consultant in the high-technology industry. He currently sits as an advisory board member of several firms, including XDL Intervest Management, Farelogix  and Infotriever. 

Born in Rhodesia, he emigrated to Canada, where he received a degree in industrial engineering from the University of Toronto. He helped co-found Delrina in 1988 along with South African expatriates Mark Skapinker and Dennis Bennie. The previous year, he and Skapinker came up with the idea of creating electronic business form software. They met with Bennie, who was then the chief executive officer of Carolian Systems International, a firm that made business software for Hewlett-Packard. He arranged for an initial seed investment of $1.5 million CAD to create a new start-up company to develop this idea, which was called "Delrina".

From 1988 to 1995 he was executive vice president and chief technical officer of Delrina, where he was responsible for product research. He helped to orchestrate the sale of the firm to Symantec in November 1995, and for one year served as a vice president on that firm's board.

External links
Biographical blurb as a member of XDL Intervest's board of directors
Biographical blurb as a member of Farelogix's board of directors
Symantec Press release from May 14, 1996: "Delrina Co-Founders Step Down & Hand Over Reins"

Living people
Year of birth missing (living people)
University of Toronto alumni
Place of birth missing (living people)
Zimbabwean emigrants to Canada
Delrina
HDC. HDC may refer to:

Computing
 Hyperdimensional computing, with very long vectors
 Handle of Device Context, part of the GDI API
 High-Definition Coding, an audio codec
 ; a Unix-like ATA device file

Law
 Holder in due course, in commercial law
 Home Detention Curfew, United Kingdom

Music
 Heavyweight Dub Champion, an American electronic group
 Herräng Dance Camp, Sweden

Organizations
 Halal Industry Development Corporation, Malaysia
 Health and Disability Commissioner, New Zealand
 Health Data Consortium, US
 Historic Districts Council, New York City, US
 Honeysuckle Development Corporation,  NSW, Australia
 HDC Hyundai Development Company, South Korea

Transportation
 Haldia Dock Complex, of the Port of Kolkata, India
 Hammond Northshore Regional Airport (FAA LID code), Louisiana, US
 Hill descent control system, of an automobile

Other uses
 Histidine decarboxylase, an enzyme
Minor actinide. A minor actinide is an actinide, other than uranium or plutonium, found in spent nuclear fuel. The minor actinides include neptunium (element 93), americium (element 95), curium (element 96), berkelium (element 97), californium (element 98), einsteinium (element 99), and fermium (element 100). The most important isotopes of these elements in spent nuclear fuel are neptunium-237, americium-241, americium-243, curium-242 through -248, and californium-249 through -252.

Plutonium and the minor actinides will be responsible for the bulk of the radiotoxicity and heat generation of spent nuclear fuel in the long term (300 to 20,000 years in the future).

The plutonium from a power reactor tends to have a greater amount of plutonium-241 than the plutonium generated by the lower burnup operations designed to create weapons-grade plutonium. Because the reactor-grade plutonium contains so much 241Pu, the presence of 241Am makes the plutonium less suitable for making a nuclear weapon. The ingrowth of americium in plutonium is one of the methods for identifying the origin of an unknown sample of plutonium and the time since it was last separated chemically from the americium.

Americium is commonly used in industry as both an alpha particle source and as a low photon-energy gamma radiation source. For example, it is commonly used in smoke detectors. Americium can be formed by neutron capture of 239Pu and 240Pu, forming 241Pu which then beta decays to 241Am. In general, as the energy of the neutrons increases, the ratio of the fission cross section to the neutron capture cross section changes in favour of fission. Hence, if MOX is used in a thermal reactor such as a boiling water reactor (BWR) or pressurized water reactor (PWR) then more americium can be expected to be found in the spent fuel than in that from a fast neutron reactor.

Some of the minor actinides have been found in fallout from bomb tests. See Actinides in the environment for details.

References

 
Nuclear materials