omniomni/omni-engineering huggingface dataset:
Contact cleaner. Contact-cleaner, also known as switch-cleaner, is a term for a chemical, or a mixture of chemicals, intended to remove or prevent the build-up of oxides or other unwanted substances on the conductive surfaces of connectors, switches, and other electronic components with moving surface-contacts, and thus reduce the contact resistance encountered. The use of contact cleaner can help to minimize the wetting current across a pair of contacts.

An example of a simple contact-cleaner is isopropyl alcohol.

Some contact-cleaners are designed to evaporate completely and rapidly, leaving no residue. Others may contain lubricants. Lubricants themselves should not necessarily be used as contact cleaners, especially if they are designed to leave an unsuitable residue. However, appropriate lubricants may work well as contact cleaners.

References

Electronics
Household_chemicals
Linden Mill. The Linden Mill is a former gristmill located in Linden, Michigan. It was listed on the National Register of Historic Places in 1972. As of 2018, the building housed the Linden branch of the Genesee District Library and the Linden Mills Historical Society Museum.

History

Two mills were first built in Linden in 1837 and 1838. These burned, and in 1850, Seth C. Sadler and M. Warren bought the mill sites and constructed the present gristmill as well as a saw mill located across the river. These mills were operated together, and known as the "Linden Mills." By 1864, Linden had 450 inhabitants, and multiple businesses that depended on the mills, such as furniture manufacturers, makers of, staves and carriages, and a grain elevator. The saw mill burned down during the Civil War, but was soon rebuilt. In 1864, Israel B. Hyatt purchased the mills, and in about 1880 Myron Harris took over.

At some point, the saw mill was demolished, but the gristmill continued in operation until 1956. At that point, the water wheel was sold and the village of Linden purchased the mill for use as a library, and to house municipal offices. The structure was remodeled, and opened as a community center in 1961. In 1971, the water wheel was replaced with another wheel from an old mill. The municipal offices moved out of the building during the 1960s, and in 1976, the Linden Mills Historical Society Museum opened in the building.  As of 2018, the library and the historical museum are still located in the old mill.

Description
The Linden Mill is a 2-1/2-story frame structure, standing on a fieldstone basement that is exposed on the river side. The building measures approximately thirty feet by sixty feet. It has a gable roof with two dormers on each side. The exterior is clad with clapboard, and windows are six-over-six units, located on each side of the building. In the river side, windows are in both upper stories and the basement, giving the impression of a three-story building. The front facade has a shed roof running  the full width of the facade.

References

External links 
  Linden Mills Historical Society Museum
 Linden branch of the Genesee District Library

		
National Register of Historic Places in Genesee County, Michigan
Commercial buildings completed in 1850
Kenneth S. Kleinknecht. Kenneth Samuel Kleinknecht (July 24, 1919 in Washington, D.C. – November 20, 2007) worked for the  United States National Advisory Committee on Aeronautics as an engineer and continued at NASA to become a manager of the Mercury, Gemini, Apollo CSM, Skylab, Shuttle, and Spacelab.  After retiring from NASA, he worked for Lockheed Martin for 9 years.

References

NASA people
Mechanical engineers
1919 births
2007 deaths
Place of death missing
Lockheed Martin people
20th-century American engineers
The Sky Bike. The Sky-Bike is a 1967 colour British children's film written and directed by Charles Frend (his last feature as director). It was produced by Harol Orton for the Children's Film Foundation. A novel based on the script was later published.

Plot

Tom Smith, living in English suburbia, is an only child who dreams of flying. He spends a lot of time at an abandoned airfield and there he meets a man who has invented a flying bicycle, but it will not stay in the air. They decide to adapt it for two cyclists, to give greater power. Their aim is to win £5000 in a competition for the first man-powered flight. They have a rival team, also based at the airfield, and both are troubled by the security guard and his two Alsatians. Tom is aided by his friend Porker and his sister Daphne.

Cast
Liam Redmond as Mr. Lovejoy (Graves for business)
William Lucas as Mr. Smith
Ellen McIntosh as Mrs. Smith
Spencer Shires as Tom Smith
Ian Ellis as Bill (Porker)
Della Rands as Daphne
John Howard as Jack
Bill Shine as Wingco
David Lodge as airfield guard
Guy Standeven as Squadron Leader
Andrew Venn as Bert
Harold Bennett as old man (Drophead Charlie)
Harry Locke as cycle shop owner

Critical reception
The Monthly Film Bulletin wrote: "An agreeable and often imaginative children's film, a little weak on plot but making up for it with the splendid central idea of a competition for man-powered flying machines. The Sky Bike itself is a charming flight of fantasy, and it is to the credit of the producers that on what must have been a very low budget they have managed to get the machines into the air for quite long periods. Mechanically minded youngsters should find the whole thing very intriguing."

TV Guide called it an "Imaginative children's adventure film ... not always believable, but this flaw can easily be overlooked given the high energy of the production."

References

External links
The Sky-Bike at IMDb
The Sky-Bike at Spinning Image

1967 films
British children's films
Children's Film Foundation
1960s children's films
Films directed by Charles Frend
1960s English-language films
1960s British films
Unimicron. Unimicron Technology Corporation (Unimicron; ) is a printed circuit board (PCB) manufacturer headquartered in Taiwan. The company produces PCBs, high density interconnection (HDI) boards, flexible PCBs, rigid flex PCBs, integrated circuit (IC) carriers, and others. In addition, it provides testing and burn-in services of IC substrates and PCBs. Applications of its products and services include liquid crystal display (LCD) monitors, personal computers (PCs) and peripheral products, notebook computers, network cards, facsimile machines, scanners, mobile phones, personal digital assistants (PDAs), and others. Unimicron has manufacturing sites and/or service centers in Taiwan, China, Germany, and Japan.

Overview
Unimicron,  a subsidiary of United Microelectronics Corporation, started in 1990, grew to global rank of 6th in 2006, and became global No. 1 in the PCB industry in 2009 and 2010. Unimicron arrived at a second position in the 2012 global PCB market with a market share of 3.7% and $2.4 billion in revenue.

References

External links
Official Website
PCB Assembly

1990 establishments in Taiwan
Companies based in Taoyuan City
Electronics companies established in 1990
Printed circuit board manufacturing
Paddington Substation. Paddington Substation is a heritage-listed electrical substation built in 1926 and located at 1 Young Street, Paddington in the Municipality of Woollahra local government area of New South Wales, Australia. It is also known as Substation #342 Paddington 33 kV Zone. The property is owned by Ausgrid, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 2 April 1999.

History 
The Paddington Zone substation is a purpose designed and built structure dating from 1926.

Description 
The Paddington Zone substation is a fine and excellent example of an unusual tuck pointed face brick building with a curved wall following its corner position. Designed in the Interwar Free Classical style it features a dominant classical rendered cornice below the parapet, a pediment above the central entrance doorway flanked by multi paned windows. It makes a considerable contribution to the character of the Paddington Streetscape. It is located in the Paddington Urban Conservation Araea as listed by the National Trust of Australia. The Paddington Zone substation is constructed using tuck pointed face brick work and features a bold rendered cornice below the parapet. External materials include face brick, cement render, and steel roller shutter.

Condition 
As at 10 November 2000, the condition was good.

Heritage listing 
The Paddington Zone substation is a fine rare and representative example of an externally intact Interwar Functionalist building located within Paddington Urban Conservation Area as listed by the National Trust. It makes a substantial contribution to the character of the streetscape in the Paddington area. It has considerable architectural significance on a state level, as the only known example of its kind in the Sydney area.

Paddington Substation was listed on the New South Wales State Heritage Register on 2 April 1999.

See also 

Australian non-residential architectural styles

References

External links

Bibliography

Attribution 

New South Wales State Heritage Register
Paddington, New South Wales
Electric power infrastructure in New South Wales
Articles incorporating text from the New South Wales State Heritage Register
1926 establishments in Australia
Buildings and structures completed in 1926
Energy infrastructure completed in 1926
Buildings and structures in Sydney
Pauline Irene Nguene. Pauline Irene Nguene is a Cameroonian-born petroleum engineer. She is currently the Cameroon Minister of Social Affairs.

Early life 
Nguene hails from Minka village (Makak) in the Nyong-et-Kellé Division, Centre Region, of the Republic of Cameroon. She is holder of a Bachelor of Sciences in petroleum engineering  from the New-Mexico Institute of Mining and Technology in the United States of America. She completed her training by obtaining a post-graduate diploma (“maîtrise”/ Master) in earth sciences from the University of Yaounde. She later obtained a Specialised Graduate Diplomas in oil companies management at HEC Montréal.

Studies 
1-New-Mexico Institute of Mining and Technology in the United States of America: Bachelor of Sciences in petroleum engineering;
2-University of Yaounde: post-graduate diploma (“maîtrise”/Master) in earth sciences;
3-Higher Commercial Studies (HEC) - Montréal in Canada: Specialised Graduate Diplomas in oil companies management;

Career 
She returned to Cameroon in 1983. A few years later, she was appointed Service Head for Hydrocarbons Exploration in the Ministry of Mines, Water Resources and Energy. While working for this Ministry, she completed her training in engineering at the University of Yaounde where she obtained a post-graduate diploma (“maîtrise”) in earth sciences.
Having obtained a scholarship of ACDI (Canada) to study in the School of Higher Commercial Studies in Montréal, she obtained a Specialised Graduate Diplomas  in oil companies management in that institution in 1988.
From 1991 to 2009, Mrs. NGUENE successively occupied the following posts in the Prime Minister’s Office:
 Attaché (1991-1992);
 Chargé de Mission (1992-2001);
 Technical  Adviser (2001-2009).
On 13 January 2009, she was appointed by Presidential Decree Chairperson of the SUPPORT BOARD FOR THE REALIZATION OF PARTNERSHIP CONTRACTS (CARPA), an institution in charge of implementing Public-Private Partnerships (PPP) in Cameroon. 
On 2 October 2015, she was appointed MINISTER OF SOCIAL AFFAIRS.
Since 2016, Mrs. NGUENE is equally the Chairperson of the Board of Directors of the Cardinal Paul Emile LEGER National Centre for the Rehabilitation of Persons with Disabilities (CNRPH-CPEL).

Some big projects of the Ministry of Social Affairs 
-The rehabilitation and modernization of the Cameroon Child Institute (l'institution Camerounaise de l'Enfance (ICE)) of Betamba in Ntui (Centre Region);
-The construction of the Rehabilitation Centre for Persons with Disabilities (CRPH) in Maroua (Far North Region);
-The fight against social exclusion and the implementation of social entrepreneurship;
-The putting in place of a Unified Social Register (a cartography of socially vulnerable persons);
-The modernization of the Cardinal Paul Emile LEGER National Centre for the Rehabilitation of Persons with Disabilities (CNRPH-CPEL).

Honorific Distinction 
Grand Officer of the Order of Valour (2019).

References 

21st-century Cameroonian women politicians
21st-century Cameroonian politicians
Living people
Cameroon People's Democratic Movement politicians
Year of birth missing (living people)
Adam Viaduct. The Adam Viaduct is a grade II listed  concrete underbridge in Wallgate, Wigan. The bridge, constructed in 1946, is the earliest 'post-tensioned' prestressed concrete railway bridge in the United Kingdom, with only some examples in Switzerland being earlier. It is bridge number 54 on the Kirkby branch line and is at a line distance of .

History and construction

The bridge was constructed as a test case, to see if prestressed concrete construction was feasible for rail projects in the UK, by the LMS railway company, and designed by their chief civil engineer William Kelly Wallace. The beams used were prestressed using the Freyssinet system, in which concrete is precast with stressed high-tensile-strength metal tendons, which consist of multiple steel wires, running down the length of them. In construction, the beams internal rods are tightened and tied together so, under live load, they act as one. The LMS developed this system in the 1930s, and prestressed beams were first used for emergency repairs during World War II, but the Adam Viaduct first to use them for a full-scale project. The benefits of the system were found to be that it was quicker to install, more economical and longer-lasting, and with the bridge being less lively than traditional designs.

The bridge has six I-beams for each track and two beams for each parapet, and they are  deep. It was erected in 1946 on the foundations of an earlier Victorian bridge, created as part of the Liverpool & Bury Railway in 1847, which was made from timber with masonry abutments. The earlier bridge was strengthened three times in: 1869, 1888 and 1906.

Southgate
 
Southgate, a bypass of the A49 from Pottery Road and Saddle Junction, passes underneath the bridge and next to the River Douglas. The road, which officially opened in March 2013, was constructed to reduce traffic in the area.

References

External links

Pre-stressed Concrete Railway Structures
History of Concrete Bridges 

Grade II listed bridges in Greater Manchester
Buildings and structures in Wigan
RAF Wratting Common. Royal Air Force (RAF) Wratting Common is a former Royal Air Force substation near Newmarket, Suffolk, England.

Units

The following units were here at some point:
 No. 24 Heavy Glider Maintenance Section
 No. 90 Squadron RAF between May and October 1943 with the Short Stirling III and the Avro Lancasters I and III
 No. 195 Squadron RAF between November 1944 and August 1945 with the Lancasters I and III
 No. 116 Storage Sub Site of No. 273 Maintenance Unit RAF between July 1946 and September 1947
 No. 2 Section of No. 1552 Radio Aids Training Flight between March and July 1946
 No. 1651 Heavy Conversion Unit RAF between November 1943 and November 1944

References
Citations

Bibliography

Royal Air Force stations of World War II in the United Kingdom
Wratting Common
List of works by Petr Vaníček. This is the list of works by Petr Vaníček.

Remarks 
 B	Book
 TB	Textbook
 LN	Lecture Notes
 PR	Paper in a Refereed Journal
 R	Research Paper
 C	Critique, Reference Paper
 IP	Invited Paper to a Meeting
 NP	Paper Read at a Meeting
 TH	Thesis
 RT	Report (non-technical)
 RW	Review Paper (technical)

List of works

Sources 
 

Works about mathematics
Geodesy
Geophysics
University of New Brunswick
Gustav Pielstick. Gustav Pielstick (25 January 1890 – 11 March 1961) was a German ship engine designer who developed a series of particularly powerful diesel engines.

Life
Pielstick was born on 25 January 1890 in Sillenstede, Germany. After attending the upper secondary school in Wilhelmshaven, he began an internship at the Wilhelmshaven Imperial Shipyard. Afterwards he attended the higher ship and mechanical engineering school in Kiel. In October 1911, Pielstick joined MAN as a design engineer in Augsburg, where he worked on the development of submarine engines. During World War I, he was promoted to Chief Engineer and, after the war, he was involved in the development of the first MAN four-stroke crosshead engines for commercial shipping. At the end of the 1920s, the Reich Navy demanded a line of high-performance diesel engines with a power to weight ratio of six kilograms per horsepower. This had not previously been achieved anywhere in the world. Up to 1931, MAN and Pielstick developed engines to meet the specification. The first was tested in the German training ship Bremse and later versions were used in the construction of the German cruiser Admiral Scheer and the German cruiser Admiral Graf Spee.

In 1934 Pielstick was appointed director of the diesel engine department of MAN. Under his leadership diesel engines emerged for ships, locomotives and stationary work. Pielstick paid particular attention to the development of engines with ever higher power density, based on the turbocharged submarine engine. The head of the design office of the naval high command, Heinrich Waas, stated: "Never before has the German Navy relied on a company and its chief designer, as it did then on M.A.N. and Pielstick".

After World War II Pielstick had to leave his post with the MAN at the behest of the victorious powers: Russia, USA, Great Britain, France & China. 
From 1946, he worked with some former employees in La Courneuve, France and founded the design office for diesel engines Société d’Etudes des Machines Thermiques (SEMT). Pielstick's work as director of the office was so successful that its designs were licensed in numerous countries, including Germany, and the company was named SEMT Pielstick. In the late 1950s, Pielstick retired from professional life and spent his old age in Lugano, Switzerland. Gustav Pielstick died in Zürich on 11 March 1961.

References

1890 births
1961 deaths
German mechanical engineers
People from Friesland (district)
Engineers from Lower Saxony
Dmitrii Perepichka. Dmitrii "Dima" F. Perepichka (born 1972) is the Chair of Chemistry Department and Sir William C. MacDonald Chair Professor in Chemistry at McGill University. His research interest are primarily in the area of organic electronics. He has contributed in the understanding of structural electronics effects of organic conjugated materials at molecular, supramolecular, and macromolecular levels via the study of small molecules, supramolecular (co-)assemblies, polymers, covalent organic frameworks, and on-surface assemblies/polymers.

Research and publications 
Prof. Perepichka has authored more than 200 publications on a diverse range of topics such as Conjugated system, Organic semiconductor, Covalent organic framework, Organic room-temperature phosphors, Organic solar cell, Organic persistent radicals, etc. in top-tier chemistry and materials journals such as Nature Materials Nature Chemistry, Journal of the American Chemical Society, Angewandte Chemie International Edition,  etc. to name a few. Furthermore, he has published book chapters, as well as having over 100 invited seminars and invited conference presentations.

References

Living people
Canadian chemists
Academic staff of McGill University
Ukrainian chemists
1972 births
Richard Stanfield. Richard Stanfield  (23 June 1863 – 10 October 1950) was a British civil engineer active in the late 19th and early 20th centuries.

Early life 

Born in England on 23 June 1863, Stanfield was educated at the Manchester Grammar School, Manchester. In around 1877 he began an apprenticeship with the firm John Chadwick and Sons.

In 1883, he won a Senior Whitworth Scholarship and then studied mine engineering at the Royal School of Mines in London under Professor Thomas Minchin Goodeve.

He also studied metallurgy and assaying under Professor Sir William Roberts-Austen. He won the Bessemer Gold Medal for his class.

Career 

He became Professor of Mechanics and Engineering at Heriot-Watt College in 1889. In 1908 he helped to design the new laboratories for his department, under the sponsorship of Lord Rosebery. He was consultant to the Royal Highland and Agricultural Society of Scotland from 1900 to 1930. In 1906 he helped to organise the Motor Reliability Trials for the Scottish Automobile Club in which 84 cars took place: this was one of the first organised shows of vehicles in Britain.

In 1891 he was elected a fellow of the Royal Society of Edinburgh; his proposers were F. Grant Ogilvie, William Henry Perkin, Alexander Bruce and Sir Byrom Bramwell. In the same year he was elected a fellow of the Royal Scottish Society of Arts. He served as its president from 1921 to 1923. He lived at 19 Queen's Crescent in the Blacket district. He later moved to 24 Mayfield Gardens.

In the First World War he was Engineer and Secretary to the Board of Management to the Munitions Committee for south Scotland. He retired in 1930 and died on 19 October 1950.

Selected publications

 The Campbell Oil Engine (1900)

References

1863 births
1950 deaths
People educated at Manchester Grammar School
Fellows of the Royal Society of Edinburgh
British mining engineers
Engineers from Manchester
Aviva (98m yacht). Aviva is a  length motor yacht. She is the fourth yacht named Aviva built for Bahamas-based British businessman Joe Lewis, and replaces the 68m Aviva (III). Like her predecessor, Aviva was designed by Reymond Langton, and built by Lemwerder-based German builder Abeking & Rasmussen. The hull of the ship was built at Flensburger Schiffbau-Gesellschaft and launched in 2015.

She was launched in 2017, has the IMO Number 1012957, and the MMSI Number 319111300.

Aviva acts as Lewis's floating home and office, and features an indoor, full-sized padel tennis court.

See also
List of motor yachts by length

References

Motor yachts
Ships built in Germany
2017 ships
Reference ecosystem. A reference ecosystem, also known as an ecological reference, is a "community of organisms able to act as a model or benchmark for restoration." Reference ecosystems usually include remnant natural areas that have not been degraded by human activities such as agriculture, logging, development, fire suppression, or non-native species invasion. Reference ecosystems are ideally complete with natural flora, fauna, abiotic elements,  ecological functions, processes, and successional states. Multiple reference ecosystems may be pieced together to form the model upon which an ecological restoration project may be based.

References

Ecological restoration
Conservation biology
Ecology terminology
Habitats
Ecosystems