omniomni/omni-engineering huggingface dataset:
Univair Aircraft Corporation. Univair Aircraft Corporation is an American aircraft manufacturer holding the type certificate for the Stinson 108 series, and Ercoupe series aircraft, including the Forney, Alon and the Mooney M10 Cadet. The company holds parts manufacturing approvals for Aeronca Champion, Bellanca Citabria, Bellanca Decathlon, Aeronca Scout, Cessna, Luscombe, Piper and Taylorcraft.

Univair was founded in the Denver, Colorado area in February 1946 by J.E. “Eddie” Dyer and Don Vest as Vest Aircraft Company. The company initially performed flight instruction, parts and repair. In 1963, Vest was closed following the death of its founder, and was reestablished by his wife in 1966 as Univair.

Univair has specialized in manufacturing FAA approved new parts for vintage aircraft such as the Piper Cub.

Aircraft

See also
 Aircraft Spruce & Specialty Company

References

External links

Aircraft manufacturers of the United States
Manufacturing companies established in 1946
Companies based in Aurora, Colorado
1946 establishments in Colorado
Defence Land Systems India Limited. Defence Land Systems India Limited (DLSI) was a joint venture between Mahindra & Mahindra Limited and BAE Systems. It designs and produces light armoured vehicles, specialist military vehicles, mine protected vehicles, artillery systems and other land weapons systems and vehicles. The company has production facilities in Prithla, Haryana.

The partnership ended in 2013.

Products and services
In 2010, DLSI launched the Mine Protected Vehicle India, an armored vehicle especially designed for anti-terrorism and anti-Naxal operations. It offers ballistic and land mine protection to troops and paramilitary forces in rugged terrain. With capacity to carry 18 troops with full gear, the vehicle can withstand blasts of up to 21 kg equivalent of TNT under any wheel and 14 kg equivalent of TNT directly underneath the crew compartment. It features a V-shaped, steel monocoque hull which directs the force of the blast away from the occupants.

References

Military vehicle manufacturers
Manufacturing companies based in Delhi
Companies based in New Delhi
Indian companies established in 2010
Manufacturing companies established in 2010
BAE Systems joint ventures
Mahindra Group
2010 establishments in Delhi
Indian companies disestablished in 2013
Manufacturing companies disestablished in 2013
Robert Baker (scientist). Robert Baker, FREng, FIMMM (1938–2004) was a British metallurgist and steelmaker.

Baker was born Handsworth, Sheffield, England, attended Woodhouse Grammar School and graduated with an honours degree in metallurgy from the University of Sheffield in 1960. He stayed on to conduct research on the use of a stabilised zirconia solid electrolyte for the measurement of oxygen activity in molten steel, for which he was awarded a PhD in 1964.

Baker worked for British Steel Corporation for many years, and was appointed Director of Research and Development in 1986 following the retirement of Dr KJ Irvine.  Together with colleagues at the company, he was granted patents relating to steel production.

Baker was elected a Fellow of the Royal Academy of Engineering and a Fellow of the Institute of Materials, Minerals and Mining (IMMM). The IMMM also awarded him the Sir Robert Hadfield medal with his colleague GD Spenceley in 1987, and the Bessemer Gold Medal in 1998 for services to the industry.

References

English metallurgists
1938 births
2004 deaths
People from Handsworth, South Yorkshire
Alumni of the University of Sheffield
Steelmaking
Engineers from Yorkshire
Bessemer Gold Medal
Fellows of the Institute of Materials, Minerals and Mining
Wave method. In fluid dynamics, the wave method (WM), or wave characteristic method (WCM), is a model describing unsteady flow of fluids in conduits (pipes).

Details of model
The wave method is based on the physically accurate concept that transient pipe flow occurs as a result of pressure waves generated and propagated from a disturbance in the pipe system (valve closure, pump trip, etc.) This method was developed and first described by Don J. Wood in 1966. A pressure wave, which represents a rapid pressure and associated flow change, travels at sonic velocity for the liquid pipe medium, and the wave is partially transmitted and reflected at all discontinuities in the pipe system (pipe junctions, pumps, open or closed ends, surge tanks, etc.) A pressure wave can also be modified by pipe wall resistance.  This description is one that closely represents the actual mechanism of transient pipe flow.

Advantages
The WM has the very significant advantage that computations need be made only at nodes in the piping system. Other techniques such as the method of characteristics (MOC) require calculations at equally spaced interior points in a pipeline. This requirement can easily increase the number of calculations by a factor of 10 or more. However, virtually identical solutions are obtained by the WM and the MOC.

See also
 EPANET

References

External links 
 Journal of Applied Fluid Transients
 Innovyze Surge Products

Fluid dynamics
Hydraulic engineering
Anatra DE. The Anatra DE was a three-engined prototype Russian medium bomber of World War I. The biplane bomber was designed to hold four people. It was planned to use three engines to reach its target, then return using only one engine, having been lightened after dropping its payload. There was a single 140 hp Salmson engine at the front of the fuselage, and an 80 hp Le Rhône engine on each wing, which turned propellers attached to the rear of the engine, behind the wing. These engines were placed in a pusher configuration, and each wing also had a gun turret one each engine nacelle. In total, the aircraft had three guns, and could carry 400 kg of bombs. The only prototype that was built, weighing 327 kg more than expected, first flew on June 23, 1916. During testing, however, the fuselage and rear propellers became damaged when a tail skid broke, and it became evident that the design needed to be changed; the project was then abandoned.

Specifications

Notes

References
(In French) V.B. Shavrov, Histoire de la construction aéronautique en URSS.

1910s Russian bomber aircraft
Three-engined push-pull aircraft
DE
Biplanes
Aircraft first flown in 1916
Rotary-engined aircraft
Three-engined piston aircraft
Aircraft with fixed conventional landing gear
USA-225. USA-225, also known as the Rapid Pathfinder Prototype (RPP) and NRO Launch 66 (NROL-66), is an American satellite which was launched in 2011. The satellite is being used to perform technology demonstration and development experiments, including advanced dosimeters to characterize the space environment from a 1,200 kilometer low Earth orbit. It is operated by the United States National Reconnaissance Office.

Rapid Pathfinder was developed for less than US$20 million over a period of less than two years. Its dimensions are 0.5 m times 0.5 m times 0.5 m, and its mass including payload is 235 kg.

A Minotaur I carrier rocket was used to launch USA-225, flying from Space Launch Complex 8 of the Vandenberg Air Force Base. The launch of was originally scheduled for March 2011; however, it was subsequently moved forwards to 5 February.  During the attempt to launch on 5 February 2011, a transmitter malfunctioned, and the launch attempt was scrubbed. Another attempt was scheduled for the next day. At 12:26 on 6 February 2011, the Minotaur lifted off, carrying USA-225 into orbit. The launch was conducted by Orbital Sciences Corporation.

For launch, the RPP satellite was given the designation NRO Launch 66, or NROL-66. Upon reaching orbit it was named USA-225 in accordance with the usual naming system for American military spacecraft. The satellite received the International Designator 2011-006A, and the Satellite Catalog Number 37364.

See also

STEX

References

Spacecraft launched in 2011
Spacecraft launched by Minotaur rockets
USA satellites
Shaktiman truck. The Shaktiman (Strong) is a version of the MAN 415 built under licence. Shaktiman trucks were the most widely used medium-capacity trucks of the Indian Armed Forces. They were manufactured between 1959 and 1996 by the Vehicle Factory Jabalpur, (VFJ) of the Indian Ordnance Factories Board. Over 75,000 units were produced over its lifetime, of which about 7,000 remained in active service as of 2009. Nearly all the Shaktimans have been phased out and replaced by Ashok Leyland Stallion and Tata LPTA 713 4x4s.

Production
The first Shaktiman rolled off the production line at the Vehicle Factory Jabalpur (VFJ) motorvehicle factory in 1959. The five ton Shaktiman VFJ 4X4 model was based on the MAN 415. The first units were assembled using CKD-kits from Germany, the monthly production was about 250 units. As production had built up, an increasing number of the components were supplied by Indian suppliers.

The final significant order of 3000 trucks was received in 1993 from the Indian Army. This order was fulfilled by 1996. The infrastructure for the truck production was preserved for a few more years as a backup contingency option. The Shaktiman production line was dismantled in 2003.

Shaktiman models were built using all-steel cabs with flat angular surfaces to aid manufacture. Most Shaktimans had a multifuel capable, 130 PS diesel engine, and were fitted with switchable all-wheel drive. In total, over 75000 units of the truck in various configurations were produced for the Indian Armed Forces by VFJ over its lifetime.

Design and development
The Shaktiman uses the conventional truck design, and is based on the MAN 415 L1 AR truck. Over time, the design was customised and evolved by VFJ with the major focus being indigenisation, and upting it. In the last few decades of its production, the truck was built entirely with components supplied by Indian vendors.

Variants
The Shaktiman chassis was adapted into a wide range of variants, including:
 4x4 and 4x2 hard and soft top variants
 4000 litre fuel tankers
 4000 litre water tankers
 Versions for carrying shelter bodies, primarily for theatre communications and sensor systems
 Artillery tractors with crew shelters
 A version with gross weightage of 8350 kg for towing 105 mm light field guns and other howitzers

References

External links
 Ordnance Factory Board of India's website on the Shaktiman

Military trucks of India
VL40U. VL40U — is a AC passenger electric locomotive modernized from sections of the VL80t freight electric locomotive of 2004 for the needs of Ukrzaliznytsia. In the process of modernization, each electric locomotive received new control cabins and equipment. 

Modernization was carried out at the Zaporizhzhia and Lviv locomotive repair plants in two versions, which differed from each other in the shape of the cab.

25 kV AC locomotives
Railway locomotives introduced in 2004
Electric locomotives of Ukraine
Motihari College of Engineering. Motihari College of Engineering, Motihari is a Government Engineering College fully funded by the government of Bihar, India. It is managed by Department of Science, Technology and Technical Education, along with 38 Government Engineering Colleges of Bihar. The college is affiliated to Bihar Engineering University, Patna and approved by AICTE, New-Delhi.

History
Previously the institute was known as Indian College of Engineering-Motihari and was established in 1980. In 1994 all staffs and students were transferred to other engineering colleges of Bihar and the institute was shut down due to some political reason. Later in November 2008, the Government reopen the institute & the name was changed from Indian College of Engineering to Motihari College of Engineering.

Campus 
Motihari College of Engineering has a 48 acre campus at Bairiya Fursatpur, Motihari, East-Champaran district of Bihar in India.

Departments 

Additional 12 seats (2nd year onward) is also sanctioned by AICTE for Lateral Entry students for all trades especially for Diploma holder or B.Sc. students.

Academics

Admissions 

Since 2019, admissions are being taken by UGEAC-BCECEB, which considers JEE-Main merit list as the scoring criterion.
Students desirous to take admissions must appear in JEE-Main Exam, conducted by National Testing Agency (NTA).
Earlier, UG admissions were made through the Bihar Combined Entrance Competitive Examination(BCECE) conducted by Bihar Combined Entrance Competitive Examination Board, Under Bihar Combined Entrance Competitive Examination Act, 1995 of Bihar government.
Although, any student to get admitted in any of the engineering colleges located in Bihar, which uses UGEAC as the admission norm, requires the student to be a bonafide resident of Bihar.

Curriculum 
The B. Tech. program consists of eight semesters spread over four academic years. Motihari College of Engineering is affiliated to Bihar Engineering University, Patna. M.Tech. in Computer Science & Engineering and other specialization is expected to start from upcoming academic year after getting mandatory approval from AICTE-New Delhi.

See also 
 List of institutions of higher education in Bihar
 Education in Patna
 Education in Bihar
 Education in India

External links 
 Official website
 BCECE Board website
 beu-bih.ac.in
 DST, Bihar website

Engineering colleges in Bihar
Colleges affiliated to Aryabhatta Knowledge University
East Champaran district
1980 establishments in Bihar
Educational institutions established in 1980
SADL. SADL may refer to:

 Sainte-Anne-des-Lacs, Quebec
 The International Civil Aviation Organization airport code for La Plata Airport
 Semantic Application Design Language, a language for building semantic models
 Situation Awareness Data Link, an example component of an Enhanced Position Location Reporting System
 The Southern Alberta Digital Library at the University of Lethbridge
 System Architecture Description Language, an implementation of an Architecture description language

See also 
 Sadler (name), its abbreviation
Concentric Data Systems. Concentric Data Systems, Inc. was founded in December 1979 by John J. Henderson and Jonathan Sachs, both having left their jobs as system programmers at Data General Corporation.  Originally, the company undertook a variety of software consulting projects for the Data General line of computers.  In 1981, the company developed a spreadsheet product, CompuCalc, that ran on Data General hardware and was modeled after VisiCalc.

In 1982, Sachs left and joined Mitch Kapor to found Lotus Development Corporation.

Concentric transitioned to a product development company, producing a series of software products for the IBM PC.  The products were a file manager, C.I.P, followed by a report writer for Lotus, 1-2-3 Report Writer, followed by a series of report writers marketed under the name R&R.  The R&R products worked with dBase, FoxBase, FoxPro, and various SQL database products.

In 1995, Concentric Data Systems was acquired by Wall Data Corporation of Kirkland, WA.

In 1999, Liveware Publishing, Inc.  acquired the copyrights and intellectual property of the entire R&R and Arpeggio product line from Wall Data Corporation.  R&R has been continuously updated and sold through the present.

References

External links
Official Website
R&R Report Writer Version 6

Arpeggio
Liveware Publishing

1995 mergers and acquisitions
American companies established in 1979
American companies disestablished in 1995
Computer companies established in 1979
Computer companies disestablished in 1995
Defunct companies based in Massachusetts
Defunct computer companies of the United States
Defunct computer hardware companies
Defunct software companies of the United States
Information technology companies of the United States
Software companies established in 1979
Software companies disestablished in 1995
Technology companies established in 1979
Technology companies disestablished in 1995
Reginald Foster Dagnall. Reginald Foster Dagnall (11 April 1888 – 16 November 1942) was a British engineer and aircraft designer.

Early life
Dagnall was born in Fulham, London in 1888 the son of Walter and Frances Dagnall, he was educated at Tiffin School, Kingston upon Thames.  Dagnall started his career in the drawing office of the Thames Ironworks and Shipbuilding Company. He then joined Ernest Willows in developing Willows airships and during the 1914-18 war he was first works manager and then general manager of Airships Limited., a firm which made kite balloons and blimps.

Following the war Dagnall founded his own company, which has since become famous for pneumatic dinghies and barrage balloons. The RFD name is now synonymous with "Rapid Flotation Device" and the supply of marine and aviation safety equipment.  He had researched flotation gear of various sorts, and in 1918 he built some of the earliest rubber dinghies. RFD moved to Guildford in 1926 and expanded to Catteshall Lane, Godalming, in 1936 the Godalming factory burnt down and was rebuilt in 1954. In 1959 RFD merged with Perseverance Mill. In 1963 it took over Elliot Equipment and acquired GQ Parachute Company Ltd. It purchased Mills Equipment Company in 1968. In 1970 the three companies merged to form RFD-GQ In 1975 RFD-GQ divided into: - RFD Inflatables Ltd - GQ Parachutes Ltd - RFD Systems Engineering Ltd - RFD Mills Equipment Ltd.

Dagnall was also a director of G.Q. Parachute Co., Ltd., (now part of IRVIN-GQ) which leased space in the RFD works in Guildford. The GQ company operated for many years as a separate organisation until it was absorbed into the RFD Group. In 1942 Dagnall died, aged 54, of heart failure.

Sailplanes and gliding
After World War I, in a small factory at 17 Stoke Road, Guildford, Surrey Dagnall began the manufacture of equipment and gliders. In 1930 he improved on the German Zogling primary glider and marketed it under the name of Dagling. The Dagling was continued in production by the Slingsby glider company as the Slingsby Primary. Dagnall was a keen glider pilot and chairman of the Surrey Gliding Club and its later incarnation the Southern Counties Soaring Club

Airships
The non-rigid airship AD1 (registration G-FAAX) was designed by RFD and built by the Airship Development Company at the Stoke Road works in Guildford. It was taken to the old Cramlington Airship Station near Newcastle and erected in the 1918 airship hangar, with its first flight on 18 September 1929. In May 1930 it performed a number of aerial advertising flights with banners laced to the envelope sides. The original ABC Hornet engine was replaced by a 75 hp Rolls-Royce Hawk in July 1930 for work in Belgium. By mid-1931 it was dismantled and parts sold off by auction on 18 June 1931.

See also
D-class lifeboat (RFD PB16)

References 

Godalming Museum
flightglobal RFD 50th anniversary
Patent for aircraft flotation gear

1888 births
1942 deaths
English aerospace engineers
People from Fulham
People educated at Tiffin School
20th-century British engineers
20th-century English businesspeople
CAN/ULC S801. CAN/ULC S801: Standard on Electric Utility Workplace Electrical Safety for Generation, Transmission and Distribution.

This National Standard of Canada applies to the construction, operation, maintenance and replacement of electric utility systems that are used to generate, transform, transmit, distribute and deliver electrical power or energy to consumer services or their equivalent.

Purpose

Live Working (high voltage) may present potential safety risks to workers and the general public. CAN/ULC-S801 gives electric utilities a foundation for safe working environments for their employees across Canada. CAN/ULC-S801 provides a complete safety guide addressing numerous electric utility workplace safety concerns, such as:

 	Fundamental requirements
	Minimum approach distances for working near or on energized electrical lines or equipment
	Protective tools, equipment & devices
	Working on energized electrical lines and equipment
	Arc flash protection
	Radio frequency hazards
	Working on isolated electric utility systems
	Working near electric utility systems

See also

 Electric Utility
 High-voltage hazards
 Arc Flash
 Lockout-Tagout
 Canadian Electrical Code
 Protective clothing

References

Electrical safety
Construction industry of Canada
Electrical standards
Standards of Canada
System D (disambiguation). System D or Système D is a person's ability to adapt quickly and improvise to solve problems.

System D or systemd may also refer to:

 systemd, a computer startup system for Linux
 Système D, an album by Les Rita Mitsouko
 System-D, the Belgian DJ Jean-Philippe Chainiaux
 CCIR System D, an analog TV broadcast system used in mainland China and the former USSR

See also
 Black market
Diphenyldichloromethane. Diphenyldichloromethane is an organic compound with the formula (C6H5)2CCl2.  It is a colorless solid that is used as a precursor to other organic compounds.

Synthesis
It is prepared from carbon tetrachloride and anhydrous aluminium chloride as catalyst in a double Friedel-Crafts alkylation of benzene.  Alternatively,
benzophenone is treated with phosphorus pentachloride: 
(C6H5)2CO  +  PCl5  →   (C6H5)2CCl2  +  POCl3

Reactions
It undergoes hydrolysis to benzophenone.
(C6H5)2CCl2  +  H2O  →   (C6H5)2CO  +  2 HCl
It is used in the synthesis of tetraphenylethylene, 
diphenylmethane imine hydrochloride and benzoic anhydride.

References 

Phenyl compounds
Organochlorides
Oil mill. An oil mill is a grinding mill designed to crush or bruise oil-bearing seeds, such as linseed or peanuts, or other oil-rich vegetable material, such as olives or the fruit of the oil palm, which can then be pressed to extract vegetable oils, which may be used as foods or for cooking, as oleochemical feedstocks, as lubricants, or as biofuels.  The pomace or press cake – the remaining solid material from which the oil has been extracted – may also be used as a food or fertilizer.

History

Oil-rich vegetable materials have been processed mechanically to extract the valuable oils for thousands of years, typically using vertical millstones moving around a central post (edge runner stones or kollergangs in an edge mill) to crush or bruise the seeds or fruit which can then be stamped or pressed to extract the oil.  A treadmill, windmill or watermill was later used to drive the milling and pressing machinery, replaced in modern times with steam and later other power sources. Bullock or horse driven oil mills, such as the traditional ghani in Bangladesh, have increasingly been replaced by power-driven steel oil mills.

In some areas, watermills may be "double" water mills, with machinery for grinding wheat on one side of the watercourse and machinery for extracting oils on the other side.

Historical wind-driven oil mills could process between 100 and 200 tons of raw materials per year.

Modern oil mills

Modern mechanical oil mills can process up to 4,000 tons per day in hot pressing processes, and up to 25 tons per day cold pressed.  Industrial oil pressing methods usually use a screw to crush the raw materials in a continuous process, before extraction of the oil from the press cake using a centrifuge or a solvent such as hexane.

Edible oils may be extracted for culinary purposes.  Non-edible oils can be used in the manufacture of soaps saponification, biodisel production biodiesel, paints and varnishes, or as fuel for oil lamps.  Important feed stocks include soybeans, rapeseed (canola), sunflower seeds, cottonseed, and maize (corn), as well as peanuts, olives, various nuts, sesame seeds, safflower, grape seeds, flaxseed (linseed), and Mustard oil which is a secondary product of the Sarin production. Palm oil is extracted from the pulp of the oil palm fruit, palm kernel oil from the kernel of the oil palm, and coconut oil from the kernel of the coconut.

See also

 Olive oil extraction

References

 Power from Wind: A History of Windmill Technology, Richard Leslie Hills, p. 67, 172-178]
 Water and Wind Power, Martin Watts, p. 55-56
 Windmills, Martin Watts, p. 46

Grinding mills
Food grinding tools