omniomni/omni-engineering huggingface dataset:
Humber Hornet. The FV1620 Humber Hornet (FV1620, truck 1-ton, air portable, armoured launcher, Hornet launcher) was a specialised air-deployable armoured fighting vehicle designed to carry the Malkara, an anti-tank guided missile developed by Australia and the United Kingdom.

History
British units used the Hornet. Based on the British Army's FV1611 Humber "Pig" one-ton four-wheel drive armoured truck, it carried two Malkara,  missiles on a retractable boom at the rear, as well as two reloads. It could be transported by air in a Blackburn Beverley and air-dropped on a cluster of 6 special parachutes.

Operation

It was also operated by a squadron of the 2nd Royal Tank Regiment.

See also
 List of armoured fighting vehicles
 Malkara anti-tank missile
Comparable vehicles
 M551 Sheridan

References

Bibliography 
 "FV 1620 Humber "Hornet/Malkara" Anti-Tank Vehicle" WarWheels.net

External links 

 MilitaryFactory.com factsheet

Anti-tank missile carrier
Cold War armoured fighting vehicles of the United Kingdom
Airborne fighting vehicles
Military vehicles introduced in the 1950s
Humber vehicles
Sherline. Sherline is a machine tool builder founded in Australia and currently headquartered in Vista, California, USA. It builds miniature machine tools (microlathes and micromills) and a wide range of tooling to be used on them. Within the miniature segment of the machine tool industry, Sherline is one of the most widely known brands. According to Sherline, their line of OEM accessories (chucks, vises, rotary tables, and so on) is more comprehensive than that of any other builder of machine tools, regardless of machine size.

Sherline tools are often used by hobbyists for making nearly any kind of part that can be machined, as long as it fits within a miniature machine tool's limits of slide travel. Sherline's products are also used by industry. They provide an inexpensive way to build custom tooling using modular components (XY tables, machine slides, etc.).

Sherline's sales are global. Its product line helps to put machine tools in places where traditionally they would be unlikely to go by lowering the threshold for market entry. Its turnkey CNC systems are some of the least expensive CNC machine tools on the market, making it possible for individual hobbyists to enter a market that in past decades was almost entirely industrial.

Tooling 
Sherline equipment follows industry standards for tooling and fixturing allowing for 3rd party attachments as well as ease of design for custom tooling.

Headstock 
Sherline's most common headstock for both their mills and lathes is the "Sherline Standard Morse #1 Taper Spindle Headstock" This headstock includes the following features:

 Morse Taper 1
 3/4" x 16 TPI for compatible tooling

Tailstock 

 Morse Taper 0 is most common, but Morse Taper 1 is available.

T-Slot 
Sherline T slots are 1.5" on center between slots and have the following dimensions:

Slot width, top: .25″

T width, bottom: .40″

Upper slot depth: .10″

T Slot depth: .10″

(Total depth: .20″)

They are usually threaded to 10-32.

Dovetails 
Note that Sherline dovetails are 55.5* instead of a more common 55* or 60* dovetail.

History 
Sherline's history begins in the late 1960s when Australian engineer Harold Clisby developed a compact lathe under the product line "Sherline 1000" that was revolutionary for hobbyists and small-scale machinists. This lathe design caught the attention of Ron Sher, who began manufacturing it under the Sherline name. The company was then established in the United States in 1974 by Joe Martin, who recognized the potential of these machines in the growing hobbyist market. He also bemoaned the lack of regidity found in the Unimat  Over the years, Sherline expanded its product line to include milling machines and CNC systems.

References

Bibliography

 . Originally published in 1998; content updated with each print run, similar to a "revised edition". Currently in the fourth print run.

External links
 Sherline's official site

Machine tool builders
Vista, California
Companies based in San Diego County, California
USS W. L. Bartlett. USS W. F. Bartlett was a schooner acquired by the United States Navy in 1861.

W. L. Bartlett was a wooden-hulled Chesapeake Bay schooner acquired by the U.S. Navy on 13 August 1861 at Baltimore, Maryland. The Navy planned to use W. L. Bartlett and 21 other similar craft as blockships at entrances to inlets leading to the North Carolina sounds. The project — the U.S. Navy's first "stone fleet" venture -— ultimately failed.

No record of W. L. Bartletts ultimate fate has been found.

References
 

Schooners of the United States Navy
Ships of the Stone Fleet
Hofpleinlijn. The Hofpleinlijn (Spoorlijn Rotterdam Hofplein - Scheveningen) was one of the two railways between the Dutch cities of The Hague and Rotterdam. In 2006 it was converted to metro-like operation as RandstadRail line E.

History
The Zuid-Hollandsche Electrische Spoorweg-Maatschappij (ZHESM) company was founded in 1900 to build electric railway lines in the province of South Holland. Their first railway line connected Den Haag Hollands Spoor station with the seaside resort of Scheveningen. This line opened with steam traction on 1 May 1907 and was electrified in 1908.
Its second line connected The Hague with Rotterdam. It opened in 1908, and was the first electrified railway line in the Netherlands (using world-unique 10 kV 25 Hz voltage, changed in 1926 to Netherlands standard 1500 V). The terminus in Rotterdam was Rotterdam Hofplein station, which gives the line its name. 

In Rotterdam, connecting curves to the main railway towards Rotterdam Delftsche Poort and from 1951 also towards Rotterdam Noord Goederen existed, but nevertheless the Hofpleinlijn had only local significance. In 1953 the line to Scheveningen closed. The line between The Hague and Hofplein was converted to metro-like operation in 2006. Hofplein station was closed in 2010, when a tunnel connected the line to the Rotterdam Metro at Rotterdam Central Station.

See also
History of rail transport in the Netherlands

References

Railway lines in the Netherlands
Trifluoroacetic anhydride. Trifluoroacetic anhydride (TFAA) is the acid anhydride of trifluoroacetic acid. It is the perfluorinated derivative of acetic anhydride.

Preparation
Trifluoroacetic anhydride was originally prepared by the dehydration of trifluoroacetic acid with phosphorus pentoxide. The dehydration might also be carried out with excess α-halogenated acid chlorides. For example, with dichloroacetyl chloride:

 2 CF3COOH + Cl2CHCOCl → (CF3CO)2O + Cl2CHCOOH + HCl

Uses 
Trifluoroacetic anhydride has various uses in organic synthesis. 

It may be used to introduce the corresponding trifluoroacetyl group, for which it is more convenient than the corresponding acyl chloride, trifluoroacetyl chloride, which is a gas. 

It can be used to promote reactions of carboxylic acids, including Friedel-Crafts acylation and acylation of other unsaturated compounds. Other electrophilic aromatic substitution reactions can also be promoted with trifluoroacetic anhydride, including nitration, sulfonation and nitrosylation.

Similar to acetic anhydride, trifluoroacetic anhydride can be used as a dehydrating agent and as an activator for the Pummerer rearrangement.

It can be used in place of oxalyl chloride in the Swern oxidation, allowing temperatures up to −30 °C.

With sodium iodide, it reduces sulfoxides to sulfides.

Trifluoroacetic anhydride is the recommended desiccant for trifluoroacetic acid.

References

Carboxylic anhydrides
Trifluoromethyl compounds
Cornwell Tools. Cornwell Quality Tools is an American privately held company manufacturing tools for the automotive and aviation industries. The company is currently based in Wadsworth, Ohio. Cornwell remains as one of two remaining mobile tool companies that still produce their own hand tools in house at their Albion, Pennsylvania foundry and Mogadore, Ohio machining plants. USA sourced steel is used at these locations to create a more consistent, better quality product than that of overseas manufacturers. They also carry a lifetime warranty on all hand tools and use Taiwan and China manufacturing to round out its product offerings. Cornwell recently acquired Kennedy Manufacturing, Van Wert, Ohio. Kennedy produces their own Kennedy branded line of tool storage products. Cornwell also carries various air, cordless electric, diagnostic, and hand tools from other manufacturers. This is the same practice as Mac Tools, Snap-on, and Matco Tools, who together make up the four major flags of the mobile tool business.

The company was founded in 1919 by Eugene Cornwell, a blacksmith from Cuyahoga Falls, Ohio.

Cornwell Tools are sold by local tool distributors who own a territory by means of a franchise. The franchise owner drives to the work locations of potential customers, and typically offers financing to individuals buying their tools. Cornwell trucks are typically white with large blue and black Cornwell Ironman logos on their sides.

Cornwell was sued for fraud in a class action lawsuit by 8 former Cornwell Dealers in Bacharach v. Cornwell Quality Tool Co.

Ratings and reviews
The Better Business Bureau of Akron Ohio where Cornwell Quality Tool Co. is headquartered gives the company an A− Grade (as of January 2015).

References

External links 
 

Tool manufacturing companies of the United States
Automotive tool manufacturers
Manufacturing companies based in Ohio
Manufacturing companies established in 1919
American brands
GravitySimulator. gravitySimulator is a novel supercomputer that incorporates special-purpose GRAPE hardware to solve the gravitational n-body problem.  It is housed in the Center for Computational Relativity and Gravitation (CCRG) at the Rochester Institute of Technology. It became operational in 2005. 

The computer consists of 32 nodes, each of which contains a GRAPE-6A board ("mini-GRAPE") in a Peripheral Component Interconnect (PCI) slot. The GRAPE boards use pipelines to compute pairwise forces between particles at a speed of 130 Gflops. 
The on-board memory of each GRAPE board can hold data for 128,000 particles, and by combining 32 of them in a cluster, a total of four million particles can be integrated, at sustained speeds of 4Tflops.  

gravitySimulator is used to study the dynamical evolution of galaxies and galactic nuclei.

References

External links
 phiGRAPE, an N-body code optimized for GRAPE clusters
 How to build and use special purpose PC clusters in stellar dynamics

Astrophysics
Rochester Institute of Technology
Supercomputers
Frederick Palmer (engineer). Sir Frederick Palmer  (31 January 1862 – 7 April 1934) was a British civil engineer.

Biography 

Palmer was born in Carmarthenshire, Wales in 1862. He was educated in Neath, and worked as an assistant engineer on the Great Western Railway. He then joined the East Indian Railway Company as an engineer, where he remained for almost eighteen years. He was appointed engineer to the Calcutta Port Commissioners in 1901.

Palmer returned to England in 1909, as chief engineer of the Port of London Authority. He undertook several projects at the West India Docks. The first was the construction of several sheds at the Import Dock between 1912 and 1917.  Between 1926 and 1930 he built five more sheds at the South Dock and between 1929 and 1930 he constructed four more at the Export Dock.

Palmer was a founding partner of the firm Rendel, Palmer and Tritton. He served as president of the Institution of Civil Engineers (ICE) between November 1926 and November 1927. Palmer was appointed a Companion of the Order of the Indian Empire in 1907, and a Knight Commander of the Order of St Michael and St George in 1930. His son, John Palmer, made a bequest of an endowment fund to the ICE in 1960 to mark the centenary of his father's birth. The fund provides for a monetary prize and certificate for a paper submitted to the ICE on the subject of the economic and financial aspects of civil engineering.

He died at his home in Lingfield, Surrey on 7 April 1934.

References 

Welsh civil engineers
British civil engineers
Presidents of the Institution of Civil Engineers
People from Carmarthenshire
1862 births
1934 deaths
Rik Grashoff. Hendrik Johannes "Rik" Grashoff (born 5 April 1961, in Krimpen aan den IJssel) is a Dutch engineer and politician. He is a member of the political party GreenLeft. From 23 November 2010 to 19 September 2012 he was a member of the House of Representatives. He focused on matters of agriculture, defense and public administration. On 20 May 2015 he returned to the House and took up the seat of Bram van Ojik.

Biography
Grashoff studied civil engineering at Delft University of Technology. From 1983 to 1984 he was a member of the National Students Trade Union. He worked as a civil engineer before becoming a full-time politician.

From 1998 to 2006 he was an alderman of the municipality of Delft, where his responsibilities included transportation. From 2008 to 2010 he was an alderman of the municipality of Rotterdam. His responsibilities included culture and participation.

On 6 June 2018, Grashoff announced he would resign as member of the House of Representatives.

References 
  Parlement.com biography

1961 births
Living people
Municipal councillors of Delft
Aldermen in South Holland
Politicians from Delft
Aldermen of Rotterdam
Chairmen of GroenLinks
Delft University of Technology alumni
Dutch civil engineers
Dutch trade unionists
GroenLinks politicians
Dutch MPs 2017–2021
Dutch MPs 2010–2012
Dutch MPs 2006–2010
Dutch MPs 2012–2017
People from Krimpen aan den IJssel
Cyril Kirkpatrick. Sir Cyril Reginald Sutton Kirkpatrick (1872–1957) was a British civil engineer.

Cyril Kirkpatrick was born in London in 1872.  Kirkpatrick was Chief Engineer for the Port of London and formed the engineering firm of Kirkpatrick and Partners in 1924.  He served as president of the Institution of Civil Engineers between November 1931 and November 1932.  Between 1938 and 1942 Kirkpatrick drew many plans to Maryport sea wall and Harbour.

Kirkpatrick's firm was also involved with the construction of concrete caissons for the Mulberry Harbours used following the Normandy Landings during the Second World War.  He served as president of the Smeatonian Society of Civil Engineers in 1950.

Kirkpatrick's firm merged with Scott and Wilson to form Scott & Wilson, Kirkpatrick and Partners in 1951.  This firm later became the Scott Wilson Group. which operated until 2012 as Scott Wilson group was bought out by the American Company URS. URS was known as the 2nd global "consultancy-Engineering Firm in the World".

In 2012, URS was bought out again by another American company, AECOM in 2015 who at the time was ranked 3rd globally.  So, by buying URS, they become ranked 1st Engineering Consultants Firm in the world.  AECOM projects are world wide.

References 

        
        
        
        
        

British civil engineers
Presidents of the Institution of Civil Engineers
Presidents of the Smeatonian Society of Civil Engineers
Engineers from London
1872 births
1957 deaths
20th-century British engineers
Friedrich von Hefner-Alteneck. Friedrich Heinrich Philipp Franz von Hefner-Alteneck  (April 27, 1845 in Aschaffenburg – January 6, 1904 in Biesdorf near  Berlin) was a German electrical engineer and one of the closest aides of Werner von Siemens. He is largely remembered for the invention of the Hefner lamp, which provided the measure of luminous intensity used in Germany, Austria and Scandinavia from 1890 to 1942. The measure was called the Hefnerkerze (HK). The Hefnerkerze was superseded in the 1940s by the modern SI unit, the candela.

He was elected a member of the Royal Swedish Academy of Sciences in 1896.

Notable Inventions
von Hefner-Alteneck's most notable inventions were all conceptualized during his time at Siemens.

 Differential arc lamp - A type of automatic-feed carbon arc lamp
 Drum armature - An efficient form of winding motor rotor coils
 A telegraph keyboard
 The Hefner lamp

Gallery

References

External links

1845 births
1904 deaths
Engineers from Bavaria
Members of the Royal Swedish Academy of Sciences
German electrical engineers
People from Aschaffenburg
N-Chlorosuccinimide. N-Chlorosuccinimide (NCS) is the organic compound with the formula C2H4(CO)2NCl. This white solid is used for chlorinations. It is also used as a mild oxidant.  NCS is related to succinimide, but with N-Cl in place of N-H. The N–Cl bond is highly reactive, and NCS functions as a source of "Cl+".

Synthesis and selected reactions
NCS is produced from succinimide by treatment with  sources, such as sodium hypochlorite (bleach), and t-butylhypochlorite, and even chlorine.

Electron-rich arenes are readily monochlorinated by NCS. Aniline and mesitylene are converted to the respective chlorinated derivatives.

Related reagents
 N-Iodosuccinimide (NIS), the iodine analog of N-chlorosuccinimide.
 N-bromosuccinimide (NBS), the bromine analog of N-chlorosuccinimide.
 Other N-chloro compounds that are commercially available include chloramine-T,  trichloroisocyanuric acid ((OCNCl)3), 1,3-dichloro-5,5-dimethylhydantoin.

Further reading
 
 N-chlorosuccinimide has been employed as chlorinating agent in combination with visible-light photoredox catalysts in organic synthesis.

References

External links
N-Chlorosuccinimide and N-Iodosuccinimide at Organic Chemistry Portal

Reagents for organic chemistry
Oxidizing agents
Succinimides
Nitrogen–halogen compounds
Dutch Water Dreams. Dutch Water Dreams (DWD) was an Olympic artificial whitewater and surfing centre in the Van Tuyllpark in Zoetermeer, Netherlands. It went bankrupt on 5 October 2015.

Water was pumped electrically down a series of drops, fashioned in concrete and between plastic bollards. The centre also contained a FlowRider sheet wave surfing system.

History 
The whitewater facility was opened on October 20, 2006.

During a periodically check in January 2015, DWD found corrosion on the metal parts in the FlowRider area. This corrosion adopted aggressive forms compared to the last measurement. Based on these findings it was decided to close the FlowRiders area immediately. An architectural research firm was hired to check the construction extensively, as the personal safety of the visitors and the structural safety of the building couldn't be guaranteed. Eventually, it led to the demise of the attraction. An adjacent swimming pool uses its parking lot.

References

External links
 Official website
 Video tour

Sports venues in South Holland
Artificial whitewater courses
Surfing locations
Sport in Zoetermeer
Thomas Coughtrie. Thomas Robb Coughtrie (25 November 1917 – 27 August 2008) was  a chartered engineer from Motherwell, Lanarkshire, Scotland.

He was credited by The Times as the inventor of the self-grip Mole wrench although this conflicts with other sources which show the invention of the Vise-Grip locking pliers in Nebraska, United States, with an initial patent in 1921 and fuller developments patented in 1924.

Biography
It could be surmised that M. K. Mole and Son produced their own version (the Mole Grip) based on the existing American Vise-Grip. The likeness between the two is clear even from sketch drawings.

He was born in Motherwell, Lanarkshire, Scotland. After his education at Bellshill Academy he qualified as a chartered engineer.

During the Second World War, he was an electrical engineer involved in the maintenance of 1,000 ton 'Whale' floating roadways for Mulberry harbours.

In 1947 he started working for the Birmingham engineering firm of M. K. Mole and Son, founded in 1835. When the second Mole brother died in 1950 he became managing director of the company. 

In 1955 he patented the self-grip wrench. In 1960 the Mole company, and Coughtrie, relocated to Newport, Monmouthshire.

Coughtrie received an Honorary Doctorate from Heriot-Watt University in 1968.

He became a director of Cwmbrân New Town, governor of four local technical colleges and, in 1978, Deputy Lieutenant for Gwent.

References

20th-century Scottish inventors
2008 deaths
1917 births
High sheriffs of Gwent
People from Motherwell
Scottish electrical engineers
Scottish military engineers
20th-century Scottish businesspeople
People educated at Bellshill Academy
ECML PKDD. ECML PKDD, the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, is one of the leading academic conferences on machine learning and knowledge discovery, held in Europe every year.

History
ECML PKDD is a merger of two European conferences, European Conference on Machine Learning (ECML) and European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD). ECML and PKDD have been co-located since 2001; however, both ECML and PKDD retained their own identity until 2007. For example, the 2007 conference was known as "the 18th European Conference on Machine Learning (ECML) and the 11th European Conference
on Principles and Practice of Knowledge Discovery in Databases (PKDD)", or in brief, "ECML/PKDD 2007", and both ECML and PKDD had their own conference proceedings. In 2008 the conferences were merged into one conference, and the division into traditional ECML topics and traditional PKDD topics was removed.

The history of ECML dates back to 1986, when the European Working Session on Learning was first held. In 1993 the name of the conference was changed to European Conference on Machine Learning.

PKDD was first organised in 1997. Originally PKDD stood for the European Symposium on Principles of Data Mining and Knowledge Discovery from Databases. The name European Conference on Principles and Practice of Knowledge Discovery in Databases was used since 1999.

Upcoming conferences

List of past conferences

References

External links
 
 ECML proceedings information in DBLP.
 PKDD proceedings information in DBLP.

Artificial intelligence conferences
Yavuz-class frigate. The Yavuz class is a group of four frigates that were built for the Turkish Navy. They were designed in Germany and are part of the MEKO family of modular warships, in this case, the MEKO 200 design. An order for ships was signed by the Turkish government in April 1983 for four MEKO frigates. Two ships were built in Germany and two in Turkey with German assistance. They are similar in design to the larger s of the Turkish Navy, which are improved versions of the Yavuz-class frigates.

The Turkish Navy has an ongoing limited-modernization project for an electronic warfare suite. The intent is to upgrade the ships with locally produced ECM, ECCM systems, active decoys, LWRs, IRST, and the necessary user-interface systems.

The Yavuz-class ships are expected to be replaced by the s.

Ships

See also
 List of Turkish current frigates
 List of Turkish Navy ships

Citations

References
 Gardiner, Robert; Chumbley, Stephen & Budzbon, Przemysław (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. .

External links

Frigate classes
Frigates of Germany
Masuyite. Masuyite is a uranium/lead oxide mineral with formula Pb[(UO2)3O3(OH)2]·3H2O.

Masuyite was first described in 1947 for an occurrence in Katanga and named to honor Belgian geologist Gustave Masuy (1905–1945).

See also

 Classification of minerals
 List of minerals

References

Uranium(VI) minerals
Lead minerals
Oxide minerals
Monoclinic minerals
Minerals in space group 7