omniomni/omni-engineering huggingface dataset:
Esther Titilayo Akinlabi. Esther Titilayo Akinlabi is a Nigerian South African Professor of Mechanical Engineering. She is the Director of the Pan African University for Life and Earth Sciences Institute (PAULESI), Nigeria. She was the Head of Department of Mechanical Engineering Science, Faculty of Engineering and the Built Environment, University of Johannesburg (UJ), South Africa.  She was also the Vice Dean for Teaching and Learning of the institution. She is a member of Organization for Women in Science for the Developing World (OWSD) and a member of African Academy of Sciences.

Early life and education

Esther Titilayo Akinlabi was born in Kabba, Kogi State, Nigeria. She graduated from St Barnabas Secondary School, Kabba and obtained her first degree in Mechanical Engineering from the Federal University of Technology, Akure in 1997. She obtained her M.Sc. mechanical engineering from University of Port Harcourt, Rivers State, Nigeria in 2003 and  she moved to Nelson Mandela Metropolitan University, Port Elizabeth, South Africa for her PhD in 2010.

Awards and memberships 
Esther Titilayo Akinlabi is a member of the South African Young Academy of Science.  She is a registered member of the Engineering Council of South Africa (ECSA), the Council for the Regulation of Engineering in Nigeria (COREN), the South African Institution of Mechanical Engineering, the American Society of Mechanical Engineers, Nigerian Society of Engineers (NSE) and Organization for Women in Science for the Developing World (OWSD).

References 

Nigerian mechanical engineers
20th-century births
Living people
Year of birth missing (living people)
People from Kogi State
Federal University of Technology Akure alumni
University of Port Harcourt alumni
Nelson Mandela University alumni
Academic staff of the University of Johannesburg
Nigerian women engineers
21st-century South African engineers
South African women engineers
L.A. Rumbold. L.A. Rumbold was an important British aircraft interiors manufacturer, now a part of a larger company.

History
The company was formed on 31 July 1933 to make seats for de Havilland aircraft, in north-west London.

The company made seats for military aircraft as well, such as Handley Page. The company was bought by Spurling Motor Bodies on 23 November 1959, which made Spurling Stairways, of Edgware Road, for aircraft.

The company moved again in 1963. Spurling was bought in December 1964, for £2.2m.

The company made aircraft galleys as well, and culinary water boilers.

By the 1970s the company had supplied to over one hundred airlines, including BOAC.

The company was bought in 2012.

Awards
 Queens Award for Export Achievement in 1991
 Queens Award for Export Achievement in 1992 for the Camberley site

Structure
The company, under new ownership, has a main manufacturing site in Camberley in Surrey.

Products
It made the aircraft seats for Concorde in the 1970s.

See also
 AIM Altitude

References

External links
 Advertising

Aircraft cabin components
Aircraft component manufacturers of the United Kingdom
Airliner seating
British companies established in 1933
Camberley
Companies based in Surrey
Manufacturing companies established in 1933
Hydrogen sulfide chemosynthesis. Hydrogen sulfide chemosynthesis is a form of chemosynthesis which uses hydrogen sulfide. It is common in hydrothermal vent microbial communities Due to the lack of light in these environments this is predominant over photosynthesis.

Giant tube worms use bacteria in their trophosome to fix carbon dioxide (using hydrogen sulfide as their energy source) and produce sugars and amino acids.  Some reactions produce sulfur:

 hydrogen sulfide chemosynthesis:
 18H2S + 6CO2 + 3O2 → C6H12O6 (carbohydrate) + 12H2O + 18S

In the above process, hydrogen sulfide serves as a source of electrons for the reaction. Instead of releasing oxygen gas while fixing carbon dioxide as in photosynthesis, hydrogen sulfide chemosynthesis produces solid globules of sulfur in the process.

Mechanism of Action

In deep sea environments, different organisms have been observed to have the ability to oxidize reduced compounds such as hydrogen sulfide. Oxidation is the loss of electrons in a chemical reaction. Most chemosynthetic bacteria form symbiotic associations with other small eukaryotes The electrons that are released from hydrogen sulfide will provide the energy to sustain a proton gradient across the bacterial cytoplasmic membrane. This movement of protons will eventually result in the production of adenosine triphosphate. The amount of energy derived from the process is also dependent on the type of final electron acceptor.

Other Examples Of Chemosynthetic Organisms (using H2S as electron donor)

Across the world, researchers have observed different organisms in various locations capable of carrying out the process. Yang and colleagues in 2011 surveyed five Yellowstone thermal springs of varying depths and observed that the distribution of chemosynthetic microbes coincided with temperature as Sulfurihydrogenibiom was found at higher temperatures while Thiovirga inhabited cooler waters Miyazaki et al., in 2020 also found an endosymbiont capable of hydrogen sulfide chemosynthesis which contained campylobacter species and a gastropod from the genus Alviniconcha oxidise hydrogen sulfide in the Indian Ocean Furthermore, chemosynthetic bacteria such as purple sulfur bacteria have yellow globules of sulfur visible in their cytoplasm.

References 

Biochemistry
Metabolism
Organisms living on hydrothermal vents
Ecosystems
Environmental microbiology
Biological processes
Space Explorers: The ISS Experience. Space Explorers: The ISS Experience is a Canadian virtual reality series directed by Félix Lajeunesse and Paul Raphaël, and produced in association with Time Studios.

Premise 
The series follows eight astronauts on their life changing missions aboard the International Space Station.

Episodes

Awards and nominations

References

External links
 

2020 Canadian television series debuts
2020s Canadian documentary television series
Canadian Screen Award winning digital content
Films shot in outer space
International Space Station
German trawler V 308 Oscar Neynaber. Oskar Neynaber was a German fishing trawler that was requisitioned in the Second World War by the Kriegsmarine for use as a vorpostenboot, serving as V 308 Oskar Neynaber. She was torpedoed and sunk by Soviet Navy motor torpedo boats on 23 September 1941.

Description
Oscar Neynaber was  long, with a beam of . She had a depth of  and a draught of . She was assessed at , . She was powered by a 4-cylinder compound steam engine, which had two cylinders each of   and  diameter by  stroke. The engine was made by Christiansen & Meyer, Harburg, Germany. It was rated at 57 nhp. The engine powered a single screw propeller. It could propel the ship at .

History
Oscar Neynaber was built as yard number 241 by Schiffsbau Gesellschaft Unterweser AG, Unterweser-Lehe, Germany for the Kohlenbert & Putz Seefischerei AG, Wesermünde. She was launched on 30 October 1929 and completed on 20 November. The fishing boat registration PG 390 was allocated, as were the Code Letters KRVS. In 1934, her code Letters were changed to DFBC.

On 17 September 1939, she was requisitioned by the Kriegsmarine for use as a vorpostenboot, She was allocated to 3 Vorpostenflotille, serving as V 308 Oscar Neynaber. On 23 September 1941, she was torpedoed and sunk by the Soviet Navy motor torpedo boat  off the Porkkala Lighthouse, Finland with the loss of ten of her crew.

References

Sources

1929 ships
Ships built in Bremen (state)
Fishing vessels of Germany
Steamships of Germany
World War II merchant ships of Germany
Auxiliary ships of the Kriegsmarine
Maritime incidents in September 1941
World War II shipwrecks in the Baltic Sea
Fractal burning. Fractal burning, Lichtenberg burning or wood fracking refers to a technique where a Lichtenberg figure is burnt into wood using high voltage electricity. It has gained notoriety due to numerous incidents of death or severe injuries when people have attempted it at home, with at least 33 people having died between 2017 and 2022.

Process 

By applying a coat of electrolytic solution to the surface of the wood, the resistance of the surface drops considerably. Two electrodes are then placed on the wood and a high voltage is passed across them. Current from the electrodes will cause the surface of the wood to heat up until the electrolyte boils and the wooden surface burns. Because the charred surface of the wood is mildly conductive, the surface of the wood will burn in a pattern outwards from the electrodes.

Danger 

The danger lies in the process relying on high voltages, much higher than normal mains electricity. High voltages enable a potentially fatal current to pass through the body. The slightest contact with the equipment involved may result in death. At such high voltages, arc flashes are also a risk.

Transformers from microwave ovens are frequently used for the technique because they are easily obtainable. They can produce voltages of around 2,100 volts (2,000 volts is used by the modern electric chair, a device used to execute an individual by electrocution), and a fatal current of between 500 and 2,000 milliamps. Even a tenth or a hundredth of that current could be fatal. Because of the galvanic isolation in the transformer, a ground fault circuit interrupter (GFCI) or residual-current device (RCD) will not be able to break the circuit in the event of an electric shock.

A 2020 review noted that the mortality rate of fractal wood burning cases was "significant" and "exceedingly high". The American Association of Woodturners has, on safety grounds, banned any demonstrations or sales related to the practice at its events, strongly discourages any of its chapters from promoting the practice, and refuses to publish information about the practice other than safety warnings. The Association of Woodturners of Great Britain has instituted the same policy.

Other organisations that have warned against the practice include:

 Burn and Reconstructive Centers of America
 The Electrical Safety Authority of Ontario
 Electrical Safety Foundation International
 WorkSafe New Zealand
 The South Australia electrical safety regulator
 The Western Australia electrical safety regulator

References

External links 
 Video discussing the dangers of fractal wood burning by Ann Reardon

Artistic techniques
Electrical safety
Woodworking techniques
Fabcar FDSC/03. The Fabcar FDSC/03, and its evolution, the Fabcar FDSC/03 Evo, are first-generation Daytona Prototype, designed, developed and built by American manufacturing company, Fabcar Engineering, for the Grand-Am Rolex Sports Car Series, in 2003.

References

2000s cars
Mid-engined cars
Rear-wheel-drive vehicles
Sports prototypes
Kévin Pfeffer. Kévin Pfeffer (born 9 July 1990 in Forbach) is a French politician of the National Rally who was elected as a Member of the National Assembly for Moselle's 6th constituency in 2022.

Pfeffer was born in 1990 and holds a degree in chemical engineering. He was initially active in the Desires for the Future campaign to support  Socialist Party politician Ségolène Royal before joining the French National Front in 2012.

He climbed up the ranks of the RN, from an activist, to the departmental delegate of Moselle from 2015 to 2020, and then a member of the RN's national executive committee. During the 2017 French legislative election, he stood as the candidate for Moselle's 7th constituency but was not elected. In 2020, he was elected as a municipal councilor in Stiring-Wendel.

For the 2022 French legislative election, he contested Moselle's 6th constituency and successfully gained the seat.

References

1990 births
Living people
National Rally politicians
Deputies of the 16th National Assembly of the French Fifth Republic
Members of Parliament for Moselle
James E. Thornton. James E. Thornton (September 25, 1925, in Saint Paul, Minnesota – January 11, 2005) was an American computer engineer.

Thornton studied electrical engineering at the University of Minnesota earning a bachelor's degree in 1950. Immediately afterwards he went to Engineering Research Associates (ERA), which was acquired by Remington Rand in 1952. In 1958 he left with other ERA engineers to form the new Control Data Corporation (CDC). He remained there until 1973 and was involved in the development of the CDC 1604, CDC 6600, 6400, 6500, and the STAR-100. With Seymour Cray, he was the main developer of the pioneering supercomputer CDC 6000, which came onto the market in 1964.

In 1974 he co-founded Network Systems Corporation, which manufactured computer networks connecting mainframes and minicomputers, including HYPERchannel.

In 1994 he received the Eckert-Mauchly Award "for his pioneering work on high performance processors; for inventing the scoreboard for instruction issue; and for fundamental contributions to vector supercomputing." In 1997 he received the  Harry H. Goode Memorial Award from the IEEE Computer Society "for pioneering contributions and leadership in high performance computing and networking."

References

External links
Oral history interview with  James E. Thornton at the Charles Babbage Institute
Design of a Computer the Control Data 6600

1925 births
2005 deaths
People from Saint Paul, Minnesota
University of Minnesota alumni
Control Data Corporation
Aura A35. The Aura A35 is an American sailboat that was designed by Sparkman & Stephens as a cruiser-racer and first built in 1975.

The A35 is a version of Sparkman & Stephens's design 2166, as are the Hughes 35, North Star 1500 and the SHE 36.

Production
The design was built by Aura Yachts in the United States, starting in 1975, but it is now out of production.

Design
The A35 is a recreational keelboat, built predominantly of fiberglass, with wood trim. It has a masthead sloop rig, a skeg-mounted rudder and a fixed fin keel. It displaces  and carries  of ballast.

The boat has a draft of  with the standard keel and is fitted with a Universal inboard engine for docking and maneuvering.

The design has a hull speed of .

See also
List of sailing boat types

Related development
 Hughes 35
 North Star 1500
 SHE 36

References

Keelboats
1970s sailboat type designs
Sailing yachts
Sailboat type designs by Sparkman and Stephens
Sailboat types built by Aura Yachts
SHE 36. The SHE 36 is a British sailboat that was designed by Sparkman & Stephens as an International Offshore Rule Three-Quarter Ton class racer-cruiser and first built in 1977.

The SHE 36 is a development of Sparkman & Stephens' design 2166, with the rudder moved aft, giving a longer waterline, a deep keel and other changes. The basic Sparkman & Stephens' design 2166 is also used by the Aura A35, Hughes 35 and the North Star 1500.

Production
The design was built by South Hants Engineering in the United Kingdom, starting in 1977, but it is now out of production.

Design
The SHE 36 is a recreational keelboat, built predominantly of glassfibre, with wood trim. It has a masthead sloop rig, a raked stem, a reverse transom, a skeg-mounted rudder controlled by a wheel and a fixed swept fin keel. It displaces  and carries  of lead ballast.

The boat has a draft of  with the standard keel.

The boat is fitted with a Danish Bukh A/S diesel engine of  for docking and manoeuvring. The fuel tank holds  and the fresh water tank has a capacity of .

The design has sleeping accommodation for six people, with a double "V"-berth in the bow cabin, two straight settees and a pilot berth in the main cabin and an aft cabin with a single berth on the port side. The galley is located on the starboard side at the companionway ladder. The galley is equipped with a two-burner stove and a sink. A navigation station is opposite the galley, on the port side. The head is located just aft of the bow cabin on the port side.

The design has a hull speed of .

Operational history
The boat was supported by an active class club, the IOR 3/4 Ton Class, which organized racing events until its demise in 1994.

See also
List of sailing boat types

Related development
 Aura A35
 Hughes 35
 North Star 1500

References

Keelboats
1970s sailboat type designs
Sailing yachts
Sailboat type designs by Sparkman and Stephens
Sailboat types built by South Hants Engineering
Alba AR3. The Alba AR3, and its derivative, the Alba AR3-001, were a series of ground effect IMSA GTP/Group C junior (C2) sports prototype race car, designed, developed and built by Italian manufacturer and constructor, Alba Engineering in 1984, and used in sports car racing until 1988. Its best result was two 4th-place finishes; first at Lime Rock in 1984, being driven by Gianpiero Moretti, and the second at Kyalami in 1987, being driven by Maurizio Gellini and Ranieri Randaccio. It was powered by a number of different engines, including a naturally-aspirated  Buick V6 engine, a turbocharged  Buick Indy V6 engine, a  Mazda 13B 2-rotor wankel rotary engine, a naturally-aspirated  Ford-Cosworth DFV Formula One engine, and a derived  Ford-Cosworth DFL.

An evolution of the AR3 and AR3-001, called the Alba AR4, was introduced in 1985, and used in sports car racing until 1989. It was powered by the same  Mazda 13B 2-rotor wankel rotary engine as its predecessor, and achieved 2 class wins.

References

Le Mans Prototypes
24 Hours of Le Mans race cars
Ford vehicles
Rear-wheel-drive vehicles
Mid-engined cars
Sports prototypes
Cars introduced in 1984
Cars of Italy
Group C cars
IMSA GTP cars
Dale J. van Harlingen. Dale J. Van Harlingen (July 22, 1950 - July 20, 2024) was an American condensed matter physicist.

Education and career
Van Harlingen graduated from Ohio State University with a bachelor's degree in 1972, a master's degree in 1974 and a doctorate in 1977. As a postdoc he spent a year at the Cavendish Laboratory in Cambridge, England and three years with John Clarke at the University of California, Berkeley, where he did research on non-equilibrium superconductors and DC electronics with SQUIDs. Van Harlingen became in 1981 a professor at the University of Illinois at Urbana-Champaign (UIUC) and is now a professor of physics at the UIUC's Laboratory for Materials Research and the NSF Science and Technology Center for Superconductivity.

Van Harlingen does research "on the physics of superconductor materials and devices and on the application of microfabrication, cryogenic, and superconductor electronic techniques to problems of fundamental interest in condensed matter physics." He and his team created innovative scanning probe instruments, especially, the Scanning SQUID Microscope which does imaging of vortex configurations and dynamics in superconductor systems. After high-temperature superconductivity was discovered in 1986, Van Harlingen and his colleagues pioneered the phase-sensitive SQUID interferometry technique which enabled the verification of the exotic d-wave symmetry. In fundamental experiments, with David Wollman, Donald Ginsberg and Anthony Leggett, he determined the symmetry properties of the order parameter in high-temperature superconductors involving some copper oxides. The discovery of such symmetry properties caused a huge research effort to understand the exotic d-wave symmetry and its relation to the mechanisms of unconventional superconductors.

In 1998 he received, jointly with John R. Kirtley, Donald Ginsberg and Chang C. Tsuei, the Oliver E. Buckley Condensed Matter Prize for "using phase-sensitive experiments in the elucidation of the orbital symmetry of the pairing function in high-Tc superconductors." He was elected in 1995 a fellow of the American Physical Society, in 1999 a member of the American Academy of Arts and Sciences, and in 2003 a member of the National Academy of Sciences, He was awarded a Guggenheim Fellowship for the academic year 2001–2002.

Selected publications

References

External links
  
  (Quantum Science Summer School, Pennsylvania State University)
  (lecture by Dale J. Van Harlingen, September 9, 2008)
  (Saturday Physics for Everyone lecture)
 

1950 births
Living people
20th-century American physicists
21st-century American physicists
Condensed matter physicists
Ohio State University alumni
University of Illinois Urbana-Champaign faculty
Oliver E. Buckley Condensed Matter Prize winners
Fellows of the American Physical Society
Fellows of the American Academy of Arts and Sciences
Members of the United States National Academy of Sciences
Mekin Hydroelectric Power Station. The Mekin Hydroelectric Power Station, also referred to as Mekin Power Station, is a  hydroelectric power station, in Cameroon. This power station has been under construction since early 2010s, with initial commissioning planned for 2015. However, the project has been beset by multiple delays, plant shutdowns and restarts. The power station was partially re-started in June 2022 to allow the generation and evacuation of 11.25 MW of electricity, comprising 75 percent of maximum capacity. When current production testing is concluded, it is expected that the final unit will be brought online during the fourth quarter of 2022.

This renewable energy infrastructure project is under development by Mekin Hydroelectric Development Corporation (Hydro Mekin also HydroMekin), a Cameroonian independent power producer (IPP). The energy off-taker is ENEO Cameroon S.A., the public-private partnership electricity utility company. The electricity is intended for distribution primarily,  in the Dja and Lobo Department of the South Region of Cameroon, where the power station is located.

Location
The power station straddles the Dja River, immediately downstream of its confluence with the Lobo River, in Mekin Village, in the Dja and Lobo Department of the South Region of Cameroon. Mekin is located approximately , northeast of the town of Sangmélima, the departmental headquarters. This is approximately  southeast of Yaoundé, the capital city of Cameroon. The geographical coordinates of Mekin Hydroelectric Power Station are:3°15'34.0"N, 12°25'17.0"E (Latitude:3.259444; Longitude:12.421389).

Overview
The design calls for a rock-fill dam with four generation turbines, each rated at 3.75 MW for total generation capacity of 15 MW. The energy leaves the generation turbines at 63kV. At the substation outside the power station, the energy is stepped up to 110kV. It is then transmitted via overhead high voltage transmission cables to an ENEO substation at Ndjom Yekomo. There the energy is stepped down to 30kV and then entered into the ENEO grid for distribution.

Construction and funding
The engineering, procurement and construction (EPC) contractor is China National Electric Engineering Company (CNEEC). The initial budget was CFA 25 billion(approx. €40 million), with Exim Bank of China lending 85 percent and the government of Cameroon contributing 15 percent. As of June 2022, with multiple cost overruns, at least €52.5 million has been spent on construction.

See also
 List of power stations in Cameroon

References

External links
 Cameroon: Memve’éle and Mekin Dams to start operating in 2020 As of 24 April 2019.

South Region (Cameroon)
Hydroelectric power stations in Cameroon
Energy infrastructure under construction
Neodymium molybdate. Neodymium molybdate is an inorganic compound, with the chemical formula of Nd2(MoO4)3.

Preparation 

It can be prepared by reacting neodymium oxide and molybdenum trioxide at a high temperature:

Nd2O3 + 3MoO3 → Nd2(MoO4)3

It can also be prepared by reacting neodymium nitrate and (NH4)6Mo7O24, treating the obtained precipitate at a high temperature.

Properties 

It reacts with sodium molybdate at a high temperature to obtain NaNd(MoO4)2. It reacts at roughly 350°C to 700°C with hydrogen sulfide to obtain neodymium sulfide and molybdenum disulfide. At roughly 780K to 870K, it can be reduced by hydrogen to obtain Nd2Mo3O9.

References 

Neodymium(III) compounds
molybdates