omniomni/omni-engineering huggingface dataset:
Marshall P. Tulin. Marshall P. Tulin (14 March 1926 - 31 August 2019) was an American engineer working in hydrodynamics. He was the Director of the Ocean Engineering Laboratory, University of California, Santa Barbara, where he also held a University of California President Chair Professorship from 1982 to 1987. His pioneering work in the 1950s is credited with successful developments in the theory of supercavitation for naval engineering.

After graduating from MIT in 1946, he first worked on high-speed wind tunnel testing of the X-1 aircraft before moving to work for the Navy at the David Taylor Model Basin. He founded a consulting company, Hydronautics Inc, with Phillip Eisenberg in 1959.

He was elected to membership of the National Academy of Engineering in 1979.

Selected writing

 Tulin, M. P. (1963). Supercavitating flows - small perturbation theory. Laurel, Md, Hydronautics Inc.
 Tulin, M. P., & Hsu, C. C. (1982). Theory of high speed displacement ships with transom sterns. Laurel, Md, Hydronautics Inc.

References

 Ashley, S. (2001, May). Warp Drive Underwater. Scientific American. 
 Brennan, C. E. (1995). Cavitation and bubble dynamics. Oxford engineering science series, 44. New York, Oxford University Press.
 Miloh, T. (1991). Mathematical approaches in hydrodynamics. Philadelphia, Society for Industrial and Applied Mathematics. – includes short biography
 National Research Council (U.S.). (2000). An assessment of naval hydromechanics science and technology. Washington, D.C., National Academy Press.

21st-century American engineers
1926 births
2019 deaths
Members of the United States National Academy of Engineering
Martin Warner. Martin Warner (born 1972) is a British technology entrepreneur, and film producer. He is best known as the chief executive officer and founder of botObjects, Flix Premiere and Autonomous Flight.

Background
Martin Warner was born and raised in Biggin Hill, a district in Greater London, the county of Kent. He has an educational background as a software programmer and engineer.

Career 
In early 2010s, Martin Warner and Mike Duma co-founded botObjects, a 3D printing software and hardware manufacturer. In 2013, botObjects created a desktop 3D printer, which used Fused filament fabrication to create full-color 3D printing. In January 2015, botObjects was acquired by 3D Systems Inc, a US-based company developing 3D printer technologies.

Warner formed his next company, a British London-based, Flix Premiere, a media-services provider, which he founded in 2015. The company's primary focus has been on quality indie-films, which gain less attention from the other major streaming service providers and cinema theaters. The service launched in both the US and UK markets. The Guardian newspaper described the site as the Lidl of indie cinema, noting that "there were few familiar titles available on the site, but those available are the "best of the bunch" from film festivals and not available on other platforms".

Autonomous Flight, a technology startup developing pilotless drones, was established by Warner in 2015. Its first passenger drone model was the Y6S - a battery-powered pilotless flying vehicle, which underwent sub-scale flight testing for proof of concept. The company is also working on the next VTOL prototype (abbreviation for Vertical take-off and landing aircraft), the Y6S Plus, which will be a six-seater four people designed to provide Urban Air Transportation for the masses. 

Warner also took part as a producer/executive producer of a number of movies including Bikini Moon (2017), Butterfly Kisses (2017), The Other Kids (2016) and The Paddy Lincoln Gang (2014).

References

External links

Official website

Martin Warner on IMDb

Autonomous Flight

English businesspeople

Living people

1972 births
Wellcome–MRC Cambridge Stem Cell Institute. The Cambridge Stem Cell Institute at the University of Cambridge is a research centre for the nature and potential medical uses of stem cells. It is located on the Cambridge Biomedical Campus in Cambridge, England and was originally funded by the Wellcome Trust and the Medical Research Council. 

The main areas of study include pluripotent and neural stem cells, as well as epidermal stem cells. Key advances in stem cell science at the centre include the elucidation of the role of the nanog protein in pluripotency and work on inhibiting cellular differentiation. It also conducts human embryo work as approved by the Human Fertilisation and Embryology Authority.

References

External links
Cambridge Stem Cell Institute

Health in Cambridgeshire
Stem Cell Institute, Cambridge
Medical research institutes in the United Kingdom
Research institutes in Cambridge
Science and technology in Cambridgeshire
Stem cell research
Wellcome Trust
Hammer paint. Hammer paint (or hammered paint) is a special lacquer with a surface that looks like hammered metal when dried. It is also known as hammertone.

Composition
The slightly iridescent areas are caused by the different orientation of very small shiny particles, which are suspended in the lacquer. These particles are often made of the mineral mica. Mica is resilient, reflective, refractive, dielectric, chemically inert, insulating, lightweight, and hydrophilic. Alternatively, aluminium or bronze powder may be used. To make the "hammered" effect more pronounced, a small amount of silicone oil may be added directly before application.

Purposes
Hammer paint is often used to beautify technical apparatus or as a protective coating. The optical advantage of hammer paint is that surfaces look acceptable even if the underlying surface is not flat and smooth. To get a regular paint to look smooth, the surface would have to be prepared first, for example, by spackling, sanding, grinding or polishing. With hammer paint, this step can be omitted. Some hammer paints (e.g. by Hammerite) are formulated to be usable directly on rusted steel without surface preparation other than brushing to remove the loose rust.

Beyond that, the mica improves the durability and color of the paint job. The mica reduces aging by protecting the underlying binders from UV radiation. The mica also makes hammer paint relatively hard and scratch-resistant.

References

Paints
Reversing drum mixer. A reversing drum mixer (also commonly called a non-tilting mixer) is a type of concrete mixer that produces concrete in single batches.  The entire drum rotates around its axis as materials are loaded through a charge chute at one end of the drum and exit through a discharge chute at the opposite end of the drum.

Mixing Action
Mixing blades are mounted on the inside surface of the drum and as the drum rotates the blades mix by lifting and dropping the materials during each rotation.
Once the materials are sufficiently mixed the rotation of the drum is reversed and the blade arrangement pushes the concrete through to the discharge end of the mixer.

Industrial sized reversing drum mixers can have a capacity of 9 m³ and can produce a mid quality concrete mix in as little as 40 seconds.  Reversing drum mixers provide for efficient mixing and leave very little build up within the mixer.  Wear is reduced as the drum rests on rubber or polyurethane wheels and there is no steel on steel contact.  There is no direct contact between the stationary charge and discharge chutes and the rotating drum.   The flexible tires, absorb vibration and make for low maintenance and a quiet operation.  The efficient mixing within the concrete, results in a reduction in wear of the drum liners.  The reversing drum mixers are known for the extremely low maintenance and operating costs, yet a good mixing effect relative to other drum mixers.

References

Concrete
Fuqing Nuclear Power Plant. The Fuqing Nuclear Power Plant () is a nuclear power plant in Fuqing, Fujian Province, China. 
The plant is located on the coast of Xinghua Bay, near Qianxue Village, Sanshan Town. 
The station has four 1,089 megawatt (MW) CPR-1000 pressurized water reactors (PWRs). 
The CPR-1000 is an advanced PWR design developed by China from the Areva-designed PWRs at the Daya Bay Nuclear Power Plant.
The plant was jointly constructed and is operated by China National Nuclear Corporation (51%), China Huadian Corp. (39%) and the Fujian Investment & Development Co Ltd. (10%).

Construction of the first unit began on 21 November 2008 and was completed in 2014.
First concrete for Unit 2 was poured on 17 June 2009 and the unit was started in October 2015.
First concrete for Unit 3 was poured on 31 December 2010. 
Construction of Unit 4 was to begin in 2011, but was delayed until November 2012 by China's nuclear safety review following the Fukushima nuclear disaster.

In November 2014 it was announced that units 5 and 6 would be of the Hualong One (updated CPR-1000) design, with unit 5 scheduled to be in operation about 2019. 
The first concrete was poured for Fuqing 5 on 7 May 2015. Unit 5 achieved criticality in October 2020, the first Hualong One reactor to reach the milestone. The unit was connected to the grid the following month. It began commercial operation on 30 January 2021.
Unit 6 achieved criticality in December 2021, was connected to the grid in January 2022, and began commercial operation on 25 March 2022.

Reactor data
The Fuqing Nuclear Power Plant consist of 6 operational reactors.

See also

Nuclear power in China

References

Nuclear power stations in China
Buildings and structures in Fujian
Buildings and structures in Fuzhou
Nuclear power stations using CPR-1000 reactors
2013 establishments in China
Nuclear power stations with reactors under construction
Nuclear power stations with proposed reactors
Fuqing
2013 in Fuzhou
5N Plus. 5N Plus is a Canadian producer of high-purity metals and compounds for electronic applications best known as the major supplier of cadmium telluride (CdTe) to First Solar. The company was founded in 1996 and is headquartered in Saint-Laurent, Quebec, Canada. 5N Plus is a leading producer of specialty metals and chemicals, including high-purity metals such as bismuth, indium, and tellurium, as well as other materials such as cadmium, gallium, and selenium. The company's products are used in a range of applications, including electronics, solar energy, and medical devices. 5N Plus has operations in North America, Europe, and Asia and serves customers around the world.

Overview 
5N Plus draws its name from the purity of its products, 99.999% (five nines or 5N) and more.  It produces tellurium, cadmium, zinc and related compounds of 5N, 6N and 7N purity, as well as selenium, antimony and bismuth of 5N purity. Its products are critical precursors in a number of electronic applications, including the rapidly expanding thin-film photovoltaic market and to the radiation detector market.

5N Plus is an integrated producer with both primary and secondary refining capabilities. 5N Plus' primary refining capabilities are such that it can treat very low-grade metal concentrates, and extract and refine the metals of interest so that they can be fed to its secondary refining operations, where 5N Plus attains a high level of purity.  Its primary refining capabilities also enable it to treat complex feeds and very low-grade concentrates containing only small amounts of the metals of interest, and thus provide its customers with recycling solutions.

It sales have increased from $10.3 million for the fiscal year ended May 31, 2005 to $69.4 million for the fiscal year ended May 31, 2009, representing a compound annual growth rate of 61.1%. During this period, which was characterized by rapid growth and significant expansion of its production capacity, 5N Plus has been able to increase its profitability; its net income grew from $0.9 million to $20.9 million over the same period, representing a CAGR of 119.5%.

References

Companies listed on the Toronto Stock Exchange
Companies based in Montreal
Saint-Laurent, Quebec
Handasyde Monoplane. The Handasyde monoplane was a single-seat light aircraft built for the 1923 Lympne motor glider competition.  It competed there but won no prizes.

Design and development
In 1920 George Handasyde left the Martinsyde company he had formed before World War I, with Helmut Martin, to form the Handasyde Aircraft Company. Two of the draughtsmen he took on became well known, Sydney Camm and Freddie Raynham.  Handasyde,  Raynham and Camm together designed a successful glider for the Itford glider competition in 1922 in which  Raynham set a British record of 113 min, though this was only good enough for second place when Alexis Maneyrol set a world record of 201 min.   The 1923 Lympne motor glider competition was a natural outcome from the Itford event, and Handasyde produced a monoplane for it.

The all-wood Handasyde was a high-wing semi-cantilever monoplane, with parallel-chord wings that had slightly tapered tips.  The wings were built up around two spars and covered with 1 mm plywood from the rear spar at mid-chord forward; on each side a lift strut linked the wing at about 1/3 span to the fuselage lower longeron.  The wing was then fabric covered, with a wire-supported scalloped trailing edge. It carried narrow ailerons outboard.  The fuselage was rectangular in cross section, tapering more in elevation than in plan.  There were no fixed stabilisers at the rear, only an all moving rudder and undivided elevator.  Both these surfaces were hinged to provide aerodynamic balance.  The single cockpit was over the wing and towards the trailing edge, with some instruments built into the wing surface. Ahead of the wing the fuselage was short, with the air-cooled 750 cc Douglas flat-twin driving a two-bladed propeller.  The diminutive undercarriage had thin and small diameter wheels (12 in or 305 mm) on a single axle mounted on short vertical extensions from the lower longerons.

The Handasyde monoplane made its first flight on 9 September 1923, piloted by Raynham.  Despite sharing the engine troubles experienced by most contestants, it managed to fly for 158.5 miles (255 km)  at 65.7 mpg (23.3 km/litre).  This was well behind the eventual winners, the Wren and the ANEC I, both of which achieved 87.5 mpg (31.0 km/litre).

The Handasyde Company failed in 1923 and the monoplane's end is not recorded.

Specifications

References

Citations

Cited sources

 

1920s British sport aircraft
High-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1923
Hermann Blau. Hermann Blau (21 January 1871 – 18 February 1944) was a German engineer and chemist, and inventor of Blau gas.

Blau, a student of the Nobel Prize–winning chemist Adolf von Baeyer, was originally a pharmacist, but devoted himself in later life entirely to chemistry. His attempts to separate gas mixtures by physical means eventually led to the great invention of his life, a transportable liquid lighting gas from the distillation of gases known as Blau gas.

It was the manufacturer Ludwig August Riedinger who inspired the inventor to start his first production facility, the Blaugas factory, in 1903 in Augsburg at the Auer roads. The Augsburg-based company operated later on with Riedinger under the name the German Blau gas company which controlled factories in Vienna, Budapest, Bucharest, Saint Petersburg, the United States, Canada and Cuba. 

Blau gas has a rather water-like color. It was stored in steel cylinders for shipment and had the advantages that it possessed the highest specific energy from all artificial produced gases and unlike coal gas it was free from carbon monoxide. Its main use was for lighting purposes especially in places where coal gas was not available. Blau gas factories were operated in Denmark and Holland for the supply of lighthouses.

When electric lights became more common and the extraction of propane became popular because of its cheaper production, Blau gas was pushed out of the market. As a consequence of this decline, the Blaugas factory in Augsburg closed down in the fall of 1933, and moved the main operation of the company to a town in northern Germany.

Blau gas experienced an almost unexpected upswing when attempts were made to run the engines of the Zeppelin airships with Blau gas. The decisive factor was the fact that the weight of Blau gas hardly differs from that of air and the use of large quantities of the propellant had little impact on the ships' buoyancy. This advantage was evident on the Zeppelin airship's first voyage to America. Starting in 1929, the Zeppelin construction facility in Friedrichshafen produced the required Blau gas in a Blau manufacturing plant; the use of Blau gas as a buoyancy compensator was demonstrated with the LZ 127 Graf Zeppelin.

Hermann Blau was born in Graben, Karlsruhe and died in Stephanskirchen, Rosenheim. He was married to Caroline Blau, had a daughter, Martha, and four sons, Hermann, Rudolf, Edmund and Theodor.

References

1871 births
1944 deaths
20th-century German inventors
20th-century German chemists
Scientists from Karlsruhe
The Residences at Greenbelt. The Residences at Greenbelt is a residential skyscraper complex in Makati, Philippines. The project is developed and managed by Ayala Land. It is composed of three towers:

The Residences at Greenbelt - Laguna Tower
The Residences at Greenbelt - Manila Tower
The Residences at Greenbelt - San Lorenzo Tower

The towers are among the country's tallest, with the San Lorenzo Tower set to be the 6th tallest building in the Philippines upon completion.

See also
List of tallest buildings in Metro Manila

External links
Ayala Land Premier

Residential skyscrapers in Metro Manila
Skyscrapers in Makati
Illinois Traction System Mackinaw Depot. The Illinois Traction System Mackinaw Depot is a former in use 1909 to 1953 Illinois Terminal Railroad interurban passenger depot in Mackinaw, Illinois that still stands.  The Illinois Terminal Railroad (from 1896 to 1937 known as the Illinois Traction System) ran an over head trolley wire powered railroad from Peoria on the north to St. Louis on the south with branches to Champaign and Urbana. The brick depot and rotary converter "substation" was built in 1909 and designed in the Spanish Colonial Revival style. The station served regularly scheduled electric interurban passenger trains and electric locomotive powered freight trains. The Illinois Power and Light Company also used the building as an electrical substation from 1927 until 1955. Very high voltage alternating current was converted to 600 volt direct current for use by the interurban line's locomotives and interurban cars. Wires entered and left through the large holes in the upper portions of the depot. The station was one of several properties owned by the IT at Mackinaw along with adjacent mainline track and a number of rail sidings, but the other buildings and the track have since been demolished leaving the depot as the only surviving landmark from the era of electric interurban trolley service in the central Illinois area.

The depot was added to the National Register of Historic Places on November 30, 1978.

References

Railway stations on the National Register of Historic Places in Illinois
Spanish Colonial Revival architecture in the United States
Railway stations in the United States opened in 1910
Transportation buildings and structures in Tazewell County, Illinois
National Register of Historic Places in Tazewell County, Illinois
Parasitic impedance. In electrical networks, a parasitic impedance is a circuit element (resistance, inductance or capacitance) which is not desirable in an electrical component for its intended purpose.  For instance, a resistor is designed to possess resistance, but will also possess unwanted parasitic capacitance.

Parasitic impedances are unavoidable.  All conductors possess resistance and inductance and the principles of duality ensure that where there is inductance, there will also be capacitance.  Component designers will strive to minimise parasitic elements but are unable to eliminate them.  Discrete components will often have some parasitic values detailed on their datasheets to aid circuit designers in compensating for unwanted effects.

The most commonly seen manifestations of parasitic impedances in components are in the parasitic inductance and resistance of the component leads and the parasitic capacitance of the component packaging.  For wound components such as inductors and transformers, there is additionally the important effect of parasitic capacitance that exists between the individual turns of the windings.  This winding parasitic capacitance will cause the inductor to act as a resonant circuit at some frequency, known as the self-resonant frequency, at which point (and all frequencies above) the component is useless as an inductor.

Parasitic impedances are often modelled as lumped components in equivalent circuits, but this is not always adequate.  For instance, the inter-winding capacitance mentioned above is really a distributed element along the whole length of the winding and not a capacitor in one particular place.  Designers sometimes take advantage of parasitic effects to achieve a desired function in a component, see for instance helical resonator or analog delay line.

Nonlinear parasitic elements can also arise.  The term is commonly used to describe parasitic structures formed on an integrated circuit whereby an unwanted semiconductor device is formed from p-n junctions which belong to two or more intended devices or functions.  The parasitic effects in the dielectric of capacitors and parasitic magnetic effects in inductors also include non-linear effects that vary with frequency or voltage and cannot be adequately modelled by linear lumped or distributed components.

References
John L. Semmlow, Circuits, signals, and systems for bioengineers, pp. 134–135, Academic Press, 2005 .
Steven H. Voldman, ESD: Failure Mechanisms and Models, pp. 13–14, John Wiley and Sons, 2009 .

Electronic design
Distributed element circuits
Bouhagier Patras. Bouhagier Patras (Μπουχάγιερ Πάτραι) or Buhayer Patras was considered to be the longest-lived vehicle body manufacturer in Greece. It was founded in 1890 and dissolved in 2004. 

The name Bouhagier was the corrupted version of the name of a Maltese (name : Bouhagiar) family who had settled in Greece. The company was founded in Patras by Tzamaría (Ioannis Maria) Bouhagier, who was born on the island of Cephalonia, and developed by his sons, was one of the most respected builders of horse-drawn carriages. 

In the early 1920s it began the construction of motor vehicle (car, bus and various truck) bodies, and eventually concentrated on buses. Bouhagier has built an extended range of bus models on a variety of chassis and modifications were occasionally done to accommodate different body lengths. The company, like all Greek bus manufacturers, suffered a major blow in the 1980s when the Greek market was flooded with used imports. Since the 1990s its activities were essentially reduced to body repairs until it went out of business a few years later.

References 
L.S. Skartsis and G.A. Avramidis, "Made in Greece", Typorama, Patras, Greece (2003)  (republished by the Patras Science Park, 2007) 

Motor vehicle manufacturers of Greece
Greek companies established in the 19th century
Bus manufacturers of Greece
Defunct motor vehicle manufacturers of Greece
Companies based in Patras
History of Patras
Vehicle manufacturing companies established in 1890
 1890 establishments in Greece
Vehicle manufacturing companies disestablished in 2004
2004 disestablishments in Greece