omniomni/omni-engineering huggingface dataset:
De Havilland Aeronautical Technical School. The de Havilland Aeronautical Technical School was founded in 1928, initially to provide owners of de Havilland Moth aircraft with technical maintenance skills.

The Technical School was started at Edgware, London, England by Geoffrey de Havilland, founder of the de Havilland aircraft company, together with Frank Hearle. In 1934, the School moved to Hatfield, Hertfordshire, following the establishment of Hatfield Aerodrome there. The curriculum widened to cover the design, manufacture, and operation of aircraft in general. The instructors were engineers from the de Havilland company.

In 1940, the School was bombed by the Germans in a World War II raid and it was forced to move to Welwyn Garden City nearby. It then transferred to Salisbury Hall in 1941, now the location of the de Havilland Aircraft Museum. During 1947–48, the School was moved to Astwick Manor, to the north of Hatfield Aerodrome.

In 1963, the de Havilland company became part of Hawker Siddeley Aviation and the School was renamed to become the Hawker Siddeley Aviation (Hatfield) Apprentice Training School in 1965. Later it became part of Hatfield Polytechnic and then the University of Hertfordshire, moving to the College Lane campus.

There were also associated schools at Broughton, Christchurch, Lostock, and Portsmouth.

See also
 De Havilland T.K.1
 De Havilland T.K.2
 De Havilland T.K.4
 De Havilland T.K.5

References

External links 
 de Havilland Aeronautical Technical School Association website
 The Technical College c1965, Hatfield

Educational institutions established in 1928
1965 disestablishments in England
Aviation schools in the United Kingdom
Education in Hertfordshire
Aeronautical Technical School
Defunct aircraft manufacturers of the United Kingdom
1928 establishments in England
Ammonium hexafluoroaluminate. Ammonium hexafluoroaluminate is an inorganic compound with the chemical formula of (NH4)3[AlF6]. It is a white solid.  Upon heating, it converts to aluminium trifluoride, a reaction that releases hydrogen fluoride.  It has also been used as a precursor to zeolites.

Preparation
Ammonium hexafluoroaluminate can be obtained by the reaction of ammonium fluoride and aluminium hydroxide.

References

Aluminium complexes
Fluoro complexes
Ammonium compounds
Fluorometallates
Caesium titanate. Caesium titanate or cesium titanate is an inorganic compound with the formula Cs2TiO3.  Like most other inorganic titanates, it adopts a polymeric structure with Cs-O and Ti-O bonds.

Other caesium titanates include Cs2Ti5O11 and Cs2Ti6O13 and the hydrate Cs2Ti5O11•1.5H2O.

References

Titanates
Caesium compounds
Hunslet DH60C. The Hunslet DH60C is a shunter developed by Hunslet Engine Company. It has a robust modern design and is intended for heavy shunting and short industrial trips.

Background and design
In 2007 the Hunslet Engine Company announced that it was developing a new shunter type, with a family of diesel hydraulic designs (B, C or B'B' axle arrangement) up to 100 tonnes posited for future development, in 2008 manufacture of the first model - a 60tonne, 3 axle machine began. The first locomotive of type DH60C was unveiled at Chasewater Railway in July 2010.

The locomotive applied modern design principles to a shunter designed for the UK market; the locomotive has swing arm/coil spring suspension, with vertical hydraulic damping, and pneumatic brakes. The transmission is via a hydrodynamic converter and cardan drive shafts to right angled gearbox drives on each axle.

Test trials of the locomotive were carried out at Daventry International Railfreight Terminal.

A four-wheeled variant is also being developed, and Hunslet intends to certify it for use across the UK's national rail network.

Notes

References

DH60C
Industrial diesel locomotives of Great Britain
Standard gauge locomotives of Great Britain
Railway locomotives introduced in 2010
Shunting locomotives
Water Data Transfer Format. Water Data Transfer Format (WDTF) is a data delivery standard implemented by the Australian Bureau of Meteorology (BoM) that was jointly developed with the CSIRO. The standard, released in 2009, specifies both the format of and the techniques used to deliver Australian water data measurements to the BoM. 

The Water Act 2007 (Cth) requires some private organisations and government agencies in Australia that collect water data and to deliver it to the BoM according to the WDTF standard.

An external meteorological data source that delivers data in WDTF-compliant forms is the CSIRO Land & Water's Automatic Weatherstation Network. Data from this weather station network can be viewed in a web browser, downloaded at text values in CSV format, downloaded in a condensed XML format for machine-to-machine communications, or downloaded as WDTF-compliant data.
 
The use of WDTF is an example of work in the field of irrigation informatics.

See also
WaterML

References

Climate of Australia
XML-based standards
Markup languages
Technical communication
Microviscosity. Microviscosity, also known as microscopic viscosity, is the friction experienced by a single particle undergoing diffusion because of its interaction with its environment at the micrometer length scale.  The concept of microviscosity is intimately related to the concept of single particle diffusion and can be measured using microrheology.    

Understanding microviscosity requires an understanding of viscosity and diffusion i.e. macroscopic viscosity and bulk diffusion and where their assumptions break down at the micro to nanometer scale where physicists are still trying to replace phenomenological laws with physical laws governing the behavior of single particle mobility.  

In the field of biophysics, a typical microviscosity problem is understanding how a biomolecule's mobility is hindered within a cellular compartment which will depend upon many factors such as the size, shape, charge, quantity and density of both the diffusing particle and all members of its environment.  

Microviscosity can be probed by measuring the rotational correlation time of a probe molecule using either fluorescence correlation spectroscopy or the linewidths of the probe's electron spin resonance. The friction experienced by a single particle can be thought of as a microscopic viscosity (microviscosity) and should not necessarily agree with the bulk viscosity since it is a measure of the probe's local friction whereas bulk viscosity analogously would be the measure of an infinitely large probe. Both the crowding density and relative size of each co-solute in a mixture will contribute to the measured microviscosity as assessed by altered translational mobility.

References

Soft matter
Strela (crane). Strela () is a class of four Russian-built cargo cranes used during EVAs to move cosmonauts and components around the exterior of the Soviet/Russian space station Mir and the Russian Orbital Segment of the International Space Station.

Overview
Mir featured two cranes mounted to its core module (delivered by Progress spacecraft), and the ISS also possesses two cranes, mounted to Poisk and Zarya. The cranes are unpowered telescopic poles assembled in sections, which measure around 6 feet (182 cm) when collapsed but, when extended using a hand crank, measure 46 feet (14 m) long. This means that the cranes on Mir could easily reach all of the main modules of the complex, and those attached to the ISS can be used to transfer objects the full length of the Russian Orbital Segment (ROS), from Zvezda to Zarya.

The largest robotic arm on the ISS, Canadarm2 weighs 1,800 kilograms and is used to hold crew members during EVAs, move station modules, spacecraft, orbital replacement units and Dextre on the US Orbital Segment. The ROS does not require spacecraft or modules to be manipulated, as all spacecraft and modules dock automatically, and may be repositioned or discarded the same way. Each Strela crane weighs 45 kg and can perform all necessary tasks, with substantial weight savings, less complexity and less maintenance than the Canadarm2 and the European Robotic Arm.

Two Strela cranes were originally carried to the ISS on Integrated Cargo Carriers, the first on STS-96, the second on STS-101, and one was subsequently transferred from Pirs by Expedition 65 before Pirs was decommissioned. An EVA in February, 2012 relocated one Strela crane to the docking compartment Poisk. A second EVA, performed in August, moved the second Strela to Zarya.  These moves were required because Pirs was detached and deorbited to allow the MLM Nauka to dock to the location occupied by Pirs.

See also 
 Canadarm, which was used on the Space Shuttle
 Dextre, also known as the Special Purpose Dexterous Manipulator (SPDM)
 European Robotic Arm, a robotic arm installed on the ISS Russian Orbital Segment in 2021
 
 Mobile Servicing System (MSS), also known by its primary component the Canadarm2

References 

Mir
Russian components of the International Space Station
Network video recorder. A network video recorder (NVR) is a specialized computer system that records video to a disk drive, USB flash drive,  memory card, or other mass storage device. An NVR itself contains no cameras, but connects to them through a network, typically as part of an IP video surveillance system. NVRs typically have embedded operating systems.

As a more flexible and serviceable alternative to NVRs, ordinary computers may be equipped with video management software (VMS).

NVRs differ from digital video recorders (DVRs), as an NVR's input is from a network rather than a direct connection to a video capture card or tuner. Video on a DVR is encoded and processed at the DVR, while video on an NVR is encoded and processed at the camera, then streamed to the NVR for storage or remote viewing.
Additional processing may be done at the NVR, such as further compression or tagging with metadata.

Hybrid NVR/DVR surveillance systems exist which incorporate functions of both NVR and DVR.

See also 
 Video management system
 Closed-circuit television (CCTV)
 Closed-circuit television camera
 Digital video recorder (DVR)
 List of free television software
 ZoneMinder, a free closed-circuit television software application

References 

Video hardware
Digital video recorders
Video surveillance 

ru:Видеорегистратор#Сетевые видеорегистраторы (NVR)
Magnetic mineralogy. Magnetic mineralogy is the study of the magnetic properties of minerals. The contribution of a mineral to the total magnetism of a rock depends strongly on the type of magnetic order or disorder. Magnetically disordered minerals (diamagnets and paramagnets) contribute a weak magnetism and have no remanence. The more important minerals for rock magnetism are the minerals that can be magnetically ordered, at least at some temperatures. These are the ferromagnets, ferrimagnets and certain kinds of antiferromagnets. These minerals have a much stronger response to the field and can have a remanence.

Weakly magnetic minerals

Non-iron-bearing minerals 

Most minerals with no iron content are diamagnetic. Some such minerals may have a significant positive magnetic susceptibility, for example serpentine, but this is because the minerals have inclusions containing strongly magnetic minerals such as magnetite. The susceptibility of such minerals is negative and small (Table 1).

Iron-bearing paramagnetic minerals 

Most iron-bearing carbonates and silicates are paramagnetic at all temperatures. Some sulfides are paramagnetic, but some are strongly magnetic (see below). In addition, many of the strongly magnetic minerals discussed below are paramagnetic above a critical temperature (the Curie temperature or Néel temperature). In Table 2 are given susceptibilities for some iron-bearing minerals. The susceptibilities are positive and an order of magnitude or more larger than diamagnetic susceptibilities.

Strongly magnetic minerals

Iron-titanium oxides 

Many of the most important magnetic minerals on Earth are oxides of iron and titanium. Their compositions are conveniently represented on a ternary plot with axes corresponding to the proportions of , , and . Important regions on the diagram include the titanomagnetites, which form a line of compositions  for  between 0 and 1. At the  end is magnetite, while the  composition is ulvöspinel. The titanomagnetites have an inverse spinel crystal structure and at high temperatures are a solid solution series. Crystals formed from titanomagnetites by cation-deficient oxidation are called titanomaghemites, an important example of which is maghemite. Another series, the titanohematites, have hematite and ilmenite as their end members, and so are also called hemoilmenites. The crystal structure of hematite is trigonal-hexagonal. It has the same composition as maghemite; to distinguish between them, their chemical formulae are generally given as γ for hematite  and α for maghemite.

Iron sulfides 

The other important class of strongly magnetic minerals is the iron sulfides, particularly greigite and pyrrhotite.

Iron alloys

Extraterrestrial environments being low in oxygen, minerals tend to have very little . The primary magnetic phase on the Moon is ferrite, the body-centered cubic (bcc) phase of iron. As the proportion of iron decreases, the crystal structure changes from bcc to face centered cubic (fcc). Nickel iron mixtures tend to exsolve into a mixture of iron-rich kamacite and iron-poor taenite.

See also 
Magnetochemistry

References 

Geomagnetism
Mineralogy
Gustav Heinrich Tammann. Gustav Heinrich Johann Apollon Tammann ( – 17 December 1938) was a prominent Baltic German chemist-physicist who made important contributions in the fields of glassy and solid solutions, heterogeneous equilibria, crystallization, and metallurgy.

Biography 
Tammann was born in Yamburg (now Kingisepp, Leningrad Oblast). His father, Heinrich Tammann (1833–1864) was of Estonian peasant origin and his mother, Matilda Schünmann, was of German origin. Tammann graduated from University of Dorpat in chemistry. He went to Göttingen University in 1903 where he established the first Institute of Inorganic Chemistry in Germany. In 1908 he was appointed director of the Physico-Chemical Institute. His interests focused on the physics and physical chemistry of metals and alloys (metallurgy). In 1925, Tammann was awarded Liebig Medal. On 28 May 1936, Tammann was awarded the Eagle Shield of the German Empire (), with dedication "The Doyen of German Metallurgy". He was also known for the Vogel-Fulcher-Tammann equation, and the Tait-Tammann equation of state which seeks to account for the compressibility of liquids.

Tammann died in Göttingen at age 77.

Awards 
Tammann was awarded the following prizes:

 Liebig Medal of the Association of German Chemists () in 1925
 Heyn Medal of the German Society for Materials Science () in 1929
 Eagle Shield of the German Empire in 1936

The Tammann Commemorative Medal of the Deutsche Gesellschaft für Materialkunde is named after him.

Bibliography

References

External links
 

1861 births
1938 deaths
People from Kingisepp
Baltic-German people from the Russian Empire
German metallurgists
Metallurgists from the Russian Empire
Physical chemists
University of Tartu alumni
Academic staff of the University of Tartu
Academic staff of the University of Göttingen
Corresponding members of the Saint Petersburg Academy of Sciences
Corresponding Members of the Russian Academy of Sciences (1917–1925)
Corresponding Members of the USSR Academy of Sciences
Honorary members of the USSR Academy of Sciences
Emigrants from the Russian Empire to the German Empire
Hyundai BlueOn. The Hyundai BlueOn was a limited-production subcompact 5-door hatchback electric car produced by Hyundai Motor Company in 2009–2010. According to the manufacturer, the Blue-on all-electric range is  and has a top speed of over . Field testing with 30 units began in South Korea by late 2010 and sales in the domestic market were scheduled for late 2012.

History

According to Hyundai Motor Company, the total investment to develop the BlueOn, its first production electric car, was around 40 billion won (). The prototype, an electric version of i10, was first unveiled at the International Motor Show Germany 2009 in Frankfurt. The pre-production testing model was unveiled in Seoul in September 2010, when the first of 30 units were delivered to South Korean government agencies for field testing. The carmaker planned to build 2,500 units by the end of 2012, but sales were limited to the South Korean  market.

Main features
The BlueOn is equipped with a 16.4 kWh  lithium polymer (Li–Poly) battery pack and charges in 6 hours with a 220 V power outlet and in 25 minutes to 80% with three-phase electric power (in a 380 V outlet). The maximum speed is  and 0–100 km/h is achieved in 13.1 seconds. The BlueOn has a range of  on a single charge.

The BlueOn is based on the Hyundai i10 and features an electric warning sound developed by Hyundai called the Virtual Engine Sound System (VESS). The warning system will be included in the BlueOn test fleet and it will provide synthetic audio feedback mimicking the sound of an internal combustion engine (ICE).

See also
Hyundai Elantra LPI Hybrid
Hyundai i10
Hyundai Santa Fe
List of electric cars currently available

References

Production electric cars
BlueOn
Subcompact cars
Simard-Beaudry Construction. Simard-Beaudry Construction is a major construction company in the Canadian province of Quebec.

Based in Laval, Quebec, the company is specialized in large scale engineering projects.

Simard-Beaudry was founded in 1950 and builds bridges and roads, dams, as well as urban infrastructures and water purification.

The company is headed by businessman Tony Accurso who is also active in the sustainable energy sector: in September 2010, Simard-Beaudry Construction launched Prestige Energis, a subsidiary dedicated to renewables.

In December 2010, Simard-Beaudry Construction Inc., pleaded guilty to tax evasion for claiming false expenses, many involving renovations to Accurso's 119-foot yacht, and paid fines exceeding $4.1 million. This stemmed from invoices for standard business services were handed out without any work being done. The company was involved in claiming fake work as business expenses on their tax returns, dodging about $400,000 in taxes.

References

Construction and civil engineering companies of Canada
Companies based in Laval, Quebec
Construction and civil engineering companies established in 1950
Canadian companies established in 1950
Storepedo. A storepedo, or alternately storpedo, is a cylindrical storage container with an attached parachute.

Resupplying troops in the jungle by air drop  during World War II was proving problematic. Regular parachutes were costly in both money and material. Drops without parachutes risked loss of the materials due to the impact.

The Australian Inventions Directorate in headed by Sir Laurence Hartnett tasked the Ordnance Production Directorate to produce a solution.

G.W Griffiths, on a secondment with the directorate, came up with the answer. to examine the problem. A shock absorbent heavy-gauge wire netting container to absorb the impact. Griffiths named this an 'Aeropak'. The design also allows for a parachute to be attached to slow the descent.

The design was refined by Morris & Walker Pty Ltd of Melbourne. The printing firm added a three foot cardboard cylinder to carry 250lbs. A hessian parachute was also added. The hollow nose cone is hollow which also takes a proportion on the impact.

The Storpedo was test dropped from a Douglas C-47 Skytrain aircraft at Nadzab in New Guinea in 1944.

The Storepedo was used by Australian and US forces in the South-West Pacific. Small aircraft, for example the CAC Wirraway, could carry the container. Use of smaller aircraft resulted in greater accuracy of the drops.

The Storpedo was used to supply liberated prisoners of war in Timor following the 1945 surrender of Japan.

After the war, the Storpedo was used to supply victims of flooding in New South Wales.

The names on the patent are E.R. Campbell, K.M. Frewin, F.W. Lennox and R.P. Morris.

See also 
CLE Canister

References

External links 
State Library of South Australia - Photograph of a Storepedo being fitted to an aircraft 
Photograph P01254.093 Australian War Memorial - Williamtown, NSW. 1954-11-23. Storepedos just after release from a de Havilland Vampire Aircraft of No. 2 Operational Training Unit RAAF Williamtown. (Donor: R.C. Cresswell)
Photograph 079717 Australian War Memorial - Members of 121 Supply Depot Platoon, Royal Australian Army Service Corps hold a storepedo in readiness for a dropping - Bougainville - 12 March 1945

World War II military equipment of Australia
Australian inventions
Shipbuilding Industry Corporation. Shipbuilding Industry Corporation (SBIC) is a state-owned shipbuilding holding group in Vietnam, which offers a wide variety of new building choice from merchant vessel to platform supply vessel to other custom made-to-order ships. It was established based on restructured Vietnam Shipbuilding Industry Group.

History

Shipbuilding Industry Corporation's predecessor Vietnam Shipbuilding Industry Group (Vinashin) was a state-owned shipbuilding firm in Vietnam. It was one of Vietnam's leading industrial concerns, and entered into a partnership with Damen, Kongsberg, and Hyundai. Vinashin was heavily indebted, and executives have been arrested for mismanagement, but it has been claimed that further restructuring would allow debts to be repaid within a year. Vinashin folded under a debt burden of $4.5 billion in 2010; as of March 2011, it was being restructured.

Ports
Vinashin operated several ports and shipyards around Vietnam.

In August 2010, Damen Vinashin began construction on a new shipyard on a  site in Haiphong.

Ships built
Vinashin constructed both merchant ships and military ships. A number of ships in the Vietnam People's Navy were built by Vinashin.

Merchant ship construction included dry cargo, tankers, lash carriers, and passenger vessels.

Vinashin was the largest shipbuilder in Vietnam, accounting for approximately 80% of shipbuilding capacity.

Bankruptcy and disbandment 
Late 2023, the Government of Vietnam, under the resolution offered by the Politburo of the Communist Party of Vietnam, decided to shut down SBIC from the first quarter of 2024 by actively making SBIC and its 7 subsidiaries bankrupt. Only one subsidiary - which had an effective business and also an important joint venture with Damen - would be left surviving and to be renationalized.

References

External links
 

Manufacturing companies based in Hanoi
Defence companies of Vietnam
Shipbuilding companies of Vietnam
Government-owned companies of Vietnam
Manufacturing companies established in 2013
Transport in Vietnam
Vietnamese companies established in 2013
Ny Teknik. Ny Teknik (lit. New Technology) is a weekly Swedish magazine with news, debates and ads in the field of technology and engineering. It is published in Stockholm, Sweden.

History and profile
Ny Teknik was launched on 18 October 1967. Its former publisher was Ekonomi och Teknik Förlag AB. The magazine is headquartered in Stockholm and is published by Talentum Sweden.

It is distributed to all members of the Swedish Association of Graduate Engineers. The magazine mostly covered news about inventions until 1997 when a new section, Frontlinjen (lit. Front Line), was started to feature news on technological research. The magazine also includes news on the effects of technology on society, IT and telecom.

As of 2006, the editor-in-chief was Lars Nilsson. Susanna Baltscheffsky also served as the editor-in-chief. Jan Huss is the editor-in-chief of the magazine. Corresponding publications are Ingeniøren in Denmark, Teknisk Ukeblad in Norway and Technisch Weekblad in the Netherlands.

Ny Teknik had a circulation of 146,500 copies in 2006, 153,900 copies in 2008 and 156,400 copies in 2010.

References

External links
 

1967 establishments in Sweden
Ny Teknik
Magazines established in 1967
Magazines published in Stockholm
Swedish-language magazines
Weekly magazines published in Sweden