omniomni/omni-engineering huggingface dataset:
Milton Van Dyke. Milton Denman Van Dyke (August 1, 1922 – May 10, 2010) was Professor of the Department of Aeronautics and Astronautics at Stanford University. He was known for his work in fluid dynamics, especially with respect to the use of perturbation analysis in aerodynamics. His often-cited book An Album of Fluid Motion presents a collection of about 400 selected black-and-white photographs of flow visualization in experiments, received – on his request – from researchers all over the world.

Together with Bill Sears, Milton founded the Annual Review of Fluid Mechanics, in 1969, for which he was an editor until 2000.

Biography

He was the son of James and Ruth (Barr) Van Dyke.

He studied Engineering Sciences at Harvard University, from 1940 until 1943. Thereafter he started working at NACA Ames Laboratory. After the Second World War, Milton went to Caltech, to obtain his MS in 1947 and PhD (magna cum laude) in 1949. A second period at Ames Laboratory followed. During this period, Milton was awarded a Guggenheim fellowship and Fulbright grant, which he used to spend the 1954–55 academic year working with George Batchelor at Cambridge University. He was a visiting professor at the University of Paris in the 1958–59 academic year, then in 1959 he was appointed as a professor at the new Aerodynamics department of Stanford University.

He married Sylvia Jean Agard Adams in 1962 and the couple would eventually have six children. In 1976, he was elected to the National Academy of Engineering.

He was the director of Parabolic Press, an independent publisher of engineering books whose releases included a second edition of his own  Perturbation Methods in Fluid Mechanics (1975) and An album of fluid motion (1982). He insisted on keeping the prices low so that students could afford the books.

The first issue in 2014 of the Journal of Engineering Mathematics was a special issue to honour Milton Van Dyke and his work.

Books

References

External links

1922 births
2010 deaths
Harvard John A. Paulson School of Engineering and Applied Sciences alumni
Stanford University Department of Aeronautics and Astronautics faculty
Aerodynamicists
Fluid dynamicists
American aerospace engineers
Scientists from Chicago
Members of the United States National Academy of Engineering
California Institute of Technology alumni
Engineers from Illinois
Annual Reviews (publisher) editors
Naval drifter. A naval drifter is a boat built along the lines of a commercial fishing drifter but fitted out for naval purposes. The use of naval drifters is paralleled by the use of naval trawlers.

Fishing trawlers were designed to tow heavy trawls, so they were easily adapted to tow minesweepers, with the crew and layout already suited to the task. Drifters were robust boats built, like trawlers, to work in most weather conditions, but designed to deploy and retrieve drift nets. They were generally smaller and slower than trawlers. If requisitioned by navies, they were typically armed with an anti-submarine gun and depth charges and used to maintain and patrol anti-submarine nets.


World War I

Like fishing trawlers, the Royal Navy requisitioned many fishing drifters for conversion to naval use during World War I.

In addition, 362 naval drifters were ordered to Admiralty specifications (and thus are often referred to as "Admiralty drifters"). Shipyards used to building fishing trawlers or drifters could easily switch to constructing naval versions. As a bonus these drifters could be sold to commercial fishing interests when the war ended.

There were two basic types of Admiralty-built drifters, wooden hulled and steel hulled.

 The wooden hull vessels displaced 175 tons, were 86 ft (26.2 m) long, with a beam of 19 ft (5.8 m). They had a speed of 9 knots and carried one 6 pounder gun. 91 wooden hull vessels were launched 1918–20, and 100 similar Canadian-built craft were ordered in January 1917.
 The steel hull vessels displaced 199 tons, were 86 ft (26.2 m) long, with a beam of 18 ft 6in (5.6 m). They also had a speed of 9 knots and carried a 6 pounder gun. 123 steel-hulled vessels were launched 1917–1920, and 48 others were cancelled.

Royal Navy drifters were named like the trawlers were, except for the Canadian-built vessels which were numbered CD 1 to CD 100.

During 1917, a fleet of British drifters, escorted by destroyers and light cruisers, maintained a blockade of the  wide Strait of Otranto, denying the Austro-Hungarian Navy access to the Mediterranean. On 15 May 1917, the Austro-Hungarian Navy raided the barrage. The Austro-Hungarians gave most drifter crews warning to abandon ship before opening fire. Some drifter crews chose to fight, and the Gowan Lee returned fire on the Austro-Hungarian ships. The drifter was heavily damaged, but remained afloat. Skipper Joseph Watt was later awarded the Victoria Cross for his actions during the battle. Of the 47 drifters in the barrage at the time, 14 were sunk and 4 were damaged. The lack of sufficient Allied escorts forced the withdrawal of the remaining blockading ships, although only for a short time.

See also
 Royal Naval Patrol Service

Notes

References

Gardiner R, Gray R and Budzbon, P (1985) Conway's All the World's Fighting Ships 1906–1921 Conway. 
Halpern, Paul G (1995) A Naval History of World War I Naval Institute Press, Annapolis. 

Nautical terminology
Ship types
Steamships
World War I naval ships of the United Kingdom
Dongfang Electric. Dongfang Electric Corporation () is a Chinese state-owned manufacturer of power generators and the contracts of power station projects. According to Platts, in 2009-10 the company was the second largest manufacturer of steam turbines by worldwide market share, tying with Harbin Electric and slightly behind Shanghai Electric. The company currently operates the world's most powerful wind turbine by installed capacity, at 18 MW.

History
It was founded in 1984 and is based in Chengdu, Sichuan. Its subsidiary is Dongfang Electric Corporation Limited () (,). Its H shares and A shares were listed on the Hong Kong and Shanghai.

1958: Dongfang Electric Machinery Plant () was established.
1984: Dongfang Electric Corporation was established by Ding Yi.
1993: China Dongfang Electric Machinery Plant was restructured to form Dongfang Electric Machinery Company Limited ().
1994: Dongfang Electric Machinery Company was listed on the Hong Kong Stock Exchange.
1995: Dongfang Electric Machinery Company was listed on the Shanghai Stock Exchange.
2007: China Dongfang Electric Corporation was listed entirely in Dongfang Electric Machinery Company. Dongfang Electric Machinery Company was renamed to Dongfang Electric Corporation Limited ().

Controversy  
Dongfang was accused by General Electric in court papers of benefitting from a rigged tendering process awarded by South African utility giant Eskom to install a new boiler at the Duvha Power Station.  General Electric claims that Dongfang got the contract even though its bid was R1 billion (US$76 million) more than the General Electric bid.

See also 

 List of wind turbine manufacturers
 Wind energy companies of China
 Wind power

References

External links 
 Dongfang Electric Corporation
 Dongfang Electric Corporation Limited

Manufacturing companies of China
Wind power in China
Wind turbine manufacturers
Electrical engineering companies of China
Government-owned companies of China
Companies based in Chengdu
Companies listed on the Hong Kong Stock Exchange
Companies listed on the Shanghai Stock Exchange
H shares
Chinese companies established in 1984
Manufacturing companies established in 1984
Chinese brands
CSS animations. CSS animations is a module for Cascading Style Sheets that allows the animation of HTML document elements using CSS.

History 
While the pseudo-class :hover has been used to generate rudimentary animations for years, extensions of CSS into the realm of animation were minimal until the late 2000s decade. As early as 2007, WebKit had announced its intent to include CSS animation, transitions, and transforms as features of WebKit.  It also announced the implementation of both implicit and explicit animation through CSS in February 2009. CSS animation has also been put forth as a feature of CSS3, the ongoing draft specification managed by the World Wide Web Consortium (W3C).

Current 

CSS Animations is a module of Cascading Style Sheets. It allows users to hover over objects and an animation will play. Currently, it is adopted by all major search engines. Despite the controversy from those who prefer animation via Javascript, the hover tag is now widely used across the Cascading Style Sheets community.

Scalable Vector Graphics 

In addition to hover, Scalable Vector Graphics supports the @keyframes at-rule, allowing a limited set of transformations to be animated. Firefox and Chrome used the @-moz-keyframes and @-webkit-keyframes extensions, respectively, before @keyframes was added to the CSS 3 specification.

Browser support 
As of June 2011, Firefox 5 includes CSS animations support. CSS animation is also available as a module in the nightly builds of WebKit as well as Google Chrome, Safari 4 and 5 and Safari for iOS (iPhone, iPod Touch, iPad), Android versions 2.x and 3.x, Internet Explorer 10+ and Microsoft Edge browser, the BlackBerry OS 6 web browser, with the -webkit- prefix. It is also used in iTunes 9 to support iTunes LP files.

Controversy 
Early on in the development of the CSS animation it had drawn concern from those who prefer animation via JavaScript or, to a lesser-used extent, Synchronized Multimedia Integration Language (SMIL); others have claimed that it is a move by Apple Inc., the main sponsor of the WebKit project, to sidestep the inclusion of Adobe Flash (and the incumbent Flash animations) on the company's iOS line of mobile devices which use Safari. Furthermore, although Cascading Style Sheets is a relatively easy to use programming language, many programmers still struggle with making animations. With this problem, several individuals and websites have developed and created open source CSS button animations with code for users to copy. However, even with these previous controversies, CSS animations can be predominantly found and widely used across the internet.

See also 
 Flash animation
 SVG animation

References

External links 
 Initial Apple Proposal
 Examples of CSS Animation
 Learning to use CSS Animations - with practical examples
 CSS Animation Generator

Animation techniques
Apple Inc. software
Cascading Style Sheets
SM UB-38. SM UB-38 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I.

Design
A Type UB II submarine, UB-38 had a displacement of  when at the surface and  while submerged. She had a total length of , a beam of , and a draught of . The submarine was powered by two Körting six-cylinder diesel engines producing a total , two Siemens-Schuckert electric motors producing , and one propeller shaft. She was capable of operating at depths of up to .

The submarine had a maximum surface speed of  and a maximum submerged speed of . When submerged, she could operate for  at ; when surfaced, she could travel  at . UB-38 was fitted with two  torpedo tubes, four torpedoes, and one  Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.

Construction and career
The U-boat was ordered on 22 July 1915 and launched on 1 April 1916. She was commissioned into the German Imperial Navy on 19 July 1916 as SM UB-38.

The submarine sank 47 ships in 21 patrols. UB-38 struck a mine and sank in the English Channel on 8 February 1918.

Summary of raiding history

References

Notes

Citations

Bibliography 

 

1916 ships
Ships built in Hamburg
World War I submarines of Germany
German Type UB II submarines
U-boats commissioned in 1916
Maritime incidents in 1918
U-boats sunk in 1918
U-boats sunk by mines
World War I shipwrecks in the English Channel
Submarines lost with all hands
SM UB-39. SM UB-39 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I.

Design
A Type UB II submarine, UB-39 had a displacement of  when at the surface and  while submerged. She had a total length of , a beam of , and a draught of . The submarine was powered by two Körting six-cylinder diesel engines producing a total , two Siemens-Schuckert electric motors producing , and one propeller shaft. She was capable of operating at depths of up to .

The submarine had a maximum surface speed of  and a maximum submerged speed of . When submerged, she could operate for  at ; when surfaced, she could travel  at . UB-39 was fitted with two  torpedo tubes, four torpedoes, and one  Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.

Construction and career
The U-boat was ordered on 22 July 1915 and launched on 28 December 1915. She was commissioned into the German Imperial Navy on 29 April 1916 as SM UB-38.

The submarine sank 93 ships in 14 patrols. UB-39 struck a mine and sank in the English Channel on 17 May 1917.

Summary of raiding history

References

Notes

Citations

Bibliography 

 

1915 ships
Ships built in Hamburg
World War I submarines of Germany
German Type UB II submarines
U-boats commissioned in 1916
Maritime incidents in 1917
U-boats sunk in 1917
U-boats sunk by mines
World War I shipwrecks in the English Channel
Submarines lost with all hands
SM UB-40. SM UB-40 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I.

Design
A Type UB II submarine, UB-40 had a displacement of  when at the surface and  while submerged. She had a total length of , a beam of , and a draught of . The submarine was powered by two Körting six-cylinder diesel engines producing a total , two Siemens-Schuckert electric motors producing , and one propeller shaft. She was capable of operating at depths of up to .

The submarine had a maximum surface speed of  and a maximum submerged speed of . When submerged, she could operate for  at ; when surfaced, she could travel  at . UB-40 was fitted with two  torpedo tubes, four torpedoes, and one  Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.

Construction and career
The U-boat was ordered on 22 July 1915 and launched on 25 April 1916. She was commissioned into the German Imperial Navy on 17 August 1916 as SM UB-40.

The submarine sank 100 ships in 28 patrols. UB-40 was scuttled in Ostend when the German army retreated from Belgium on 5 October 1918.

The wreck of UB-40 has been located & identified by divers in the recent years.

Summary of raiding history

References

Notes

Citations

Bibliography 

 

1916 ships
Ships built in Hamburg
World War I submarines of Germany
German Type UB II submarines
U-boats commissioned in 1916
U-boats scuttled in 1918
Maritime incidents in 1918
SM UB-41. SM UB-41 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I.

Design
A Type UB II submarine, UB-41 had a displacement of  when at the surface and  while submerged. She had a total length of , a beam of , and a draught of . The submarine was powered by two Körting six-cylinder diesel engines producing a total , two Siemens-Schuckert electric motors producing , and one propeller shaft. She was capable of operating at depths of up to .

The submarine had a maximum surface speed of  and a maximum submerged speed of . When submerged, she could operate for  at ; when surfaced, she could travel  at . UB-41 was fitted with two  torpedo tubes, four torpedoes, and one  Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.

Construction and career
The U-boat was ordered on 22 July 1915 and launched on 6 May 1916. She was commissioned into the German Imperial Navy on 25 August 1916 as SM UB-41.

The submarine sank eight ships in thirteen patrols. They included the William Cory and Son collier , which UB-41 torpedoed in the North Sea off Robin Hood's Bay on 8 September 1917. UB-41 was  reported missing on 5 October 1917. The same day, a large explosion was observed from the coast at Scarborough, England. The case of her loss was either an internal explosion, or she struck a mine, possibly a German one, and sank in the North Sea on 5 October 1917.

Her wrecksite was discovered in 1989 and surveyed in 1997 and 2003. The vessel is broken into two sections, at degree angles laying on the starboard side, and showing signs of impact damage.

Summary of raiding history

References

Notes

Citations

Bibliography 

 

1916 ships
Ships built in Hamburg
World War I submarines of Germany
German Type UB II submarines
U-boats commissioned in 1916
Maritime incidents in 1917
U-boats sunk in 1917
U-boats sunk by mines
World War I shipwrecks in the North Sea
Submarines lost with all hands
Protected wrecks of the United Kingdom
Acetyl bromide. Acetyl bromide is an acyl bromide compound. As is expected, it may be prepared by reaction between phosphorus tribromide and acetic acid:

 3 CH3COOH + PBr3 → 3 CH3COBr + H3PO3

As usual for an acid halide, acetyl bromide hydrolyzes rapidly in water, forming acetic acid and hydrobromic acid. It also reacts with alcohols and amines to produce acetate esters and acetamides, respectively.

References

Acyl bromides
Acetyl compounds
Piero Magni. Piero Magni (Genoa, December 22, 1898 – April 17, 1988) was an Italian aeronautical engineer.  He was heavily involved with the National Advisory Committee for Aeronautics later in his career.

Magni contributed to the development of variable incidence and canard wings. His work extended beyond design, as he also became an entrepreneur. He founded a company focused on the licensed production of gliders, and later took on the responsibility of aircraft auditing for the Regia Aeronautica. He designed the Vittoria 1924 sport plane.

Magni also succeeded in manufacturing some designs and patented a cowling for radial engines that improved the aircraft's aerodynamics efficiency. This innovative cowling not only enhanced aerodynamic penetration but also provided an effective system for regulating the engine's temperature. This project, known as Anello Magni, was later further developed by the National Advisory Committee for Aeronautics, and become widely known as NACA cowling.

References

1898 births
1988 deaths
Engineers from Genoa
History of aviation
20th-century Italian engineers
Gorman-Rupp Company. Gorman-Rupp () is a pump manufacturer in Mansfield, Ohio. It manufactures pumps for municipal, water, wastewater, sewage, industrial, construction, petroleum, fire, and OEM markets. The company is traded on the New York Stock Exchange. Its current CEO is Scott King.

History 
Gorman-Rupp was founded in 1933 by two entrepreneurs, J.C. Gorman and Herb Rupp. Their simplified design of a self-priming, centrifugal pumps would form the core of their initial product line. 

The company was contracted by the United States military during the Second World War. Diversifying their product line to include a variety of specialized pumps contributed to significant sales increase and growth in the post-war era.

In 2021, The Gorman-Rupp Company had sales of $378.3 Million and was listed by industrial database  IndustrySelect as one of the largest pump manufacturers in the United States.

Products 

Pump types offered by Gorman-Rupp include:

 Self-priming Centrifugal
 Standard Centrifugal
 Submersible
 Rotary Gear
 Priming Assisted
 Hydraulic Piston
 Vertical Turbine
 Engine-Driven Diaphragm
 Axial Flow
 Mixed Flow
 Rotary Vane
 Bellows Metering
 Oscillating
 Packaged Lift Stations
 Booster Stations

References

External links 
 

Manufacturing companies established in 1933
Companies listed on the New York Stock Exchange
Mansfield, Ohio
Manufacturing companies based in Ohio
Pump manufacturers
1933 establishments in Ohio
Patrick Prosser. Patrick Prosser (born 8 September 1952) is a computer scientist who spent the bulk of his career at the University of Glasgow. His research has centred on constraint programming, although it has extended into the application of those techniques into other areas.  For his major contributions to the theory and practice of constraint programming, Patrick was awarded the Association for Constraint Programming's Research Excellence Award on 15 September 2011: he is only the sixth recipient of this award. He gave a prerecorded acceptance speech, which is available on YouTube.

His most notable contribution is his invention of conflict-directed backjumping, an advanced technique for reducing search in constraint problems by avoiding unnecessary work on backtracking. His 1993 paper describing this has been widely cited.

Other areas of constraint programming he has researched include the identification of hard problems
and techniques for solving vehicle routing problems. His interest in applications of constraint programming has included (for example) how it can be used in computing species trees.

Amongst his recreations is kite flying as a founder of the Kite Club of Scotland.    He has written about the Tetrahedral kite.

References

External links
 Patrick Prosser's home page at the University of Glasgow.
 Google Scholar search for Patrick Prosser's papers.

British computer scientists
Academics of the University of Glasgow
Alumni of the University of Strathclyde
1952 births
Living people
Scottish computer scientists
USS Evea (YT-458). USS Evea (YT-458), originally the sixth USS Resolute (YT-458), later YTB-458, was a United States Navy tug in commission from 1943 to 1944.

Design and construction
In the early 1940s a series of Allaquippa-class district tugs (YT) were ordered from Gulfport Boiler & Welding Works of Port Arthur, Texas by General Motors for transfer before completion to the United States Navy. These tugs had a displacement off 300 tons and were 102 feet 3 inches length overall, 95 feet length between perpendiculars, 24 feet in beam and with a draught of 10 feet.  They were powered by a 1000 bhp diesel-electric engine, supplied by General Motors, and driving a single propeller.

World War II service
Five of the Allaquippa-class tugs were completed for the British Royal Navy and supplied under the Lend-Lease Act. The last of these, Yard No. 194 from Gulfport, was designated BYT 5 by the U.S. Navy, given the name Resolute on completion and transferred to the U.K. on 26 March 1942. She served in the Mediterranean as a salvage tug.

She was acquired by the U.S. Navy at the Moroccan Sea Frontier on 16 May 1943 and placed in service as the harbor tug USS Resolute (YT-458). She was renamed USS Evea (YT-458) on 9 June 1943. Assigned duty in North African waters, she was reclassified as a "large harbor tug" and redesignated YTB-458 on 15 May 1944. During her service in the Mediterranean area she was involved in the Sicilian occupation (9–15 July 1943), the Salerno Landings (9–21 September 1943), and the Invasion of Southern France (15 August – 25 September 1944).

French Navy
Evea was transferred to the French Navy under Lend-Lease at Marseille in autumn 1944 and renamed Malabar (A 709). France later nominally returned Evea to the United States, after which she was stricken from the Naval Vessel Register and sold to France. On 26 November 1946 the tug sailed from Toulon for Singapore towing the French Navy steam tug Tulear, destined for service at Saigon. Malabar was then deployed as a port tug at Diego Suarez, Madagascar, where she arrived on 26 March 1947.

On 19 July 1967 Malabar capsized and sank while assisting the 51,270 DWT British tanker Mobil Enterprise outside the port of Diego Suarez. In the accident ten of her crew lost their lives.

References

 (for USS Resolute (YT-458))
 (for USS Evea (YT-458/YTB-458))

1942 ships
Ships of the Royal Navy
Ships of the United States Navy
Ships of the French Navy