omniomni/omni-engineering huggingface dataset:
Gábor Stépán. Gábor Stépán (; born December 13, 1953, in Budapest), Hungarian professor of applied mechanics, member of the Hungarian Academy of Sciences, fellow of the International Academy for Production Engineering (CIRP), fellow of the Society for Industrial and Applied Mathematics (SIAM), former dean of the Faculty of Mechanical Engineering in the Budapest University of Technology and Economics. Won the Széchenyi Prize in 2011, the Thomas K. Caughey Dynamics Award (ASME Applied Mechanics Division) in 2015, and the Delay Systems Lifetime Achievements Award (International Federation of Automatic Control, IFAC) in 2021. His research fields include nonlinear vibrations, delay-differential equations, and stability theory.
He was elected as a fellow of the Society for Industrial and Applied Mathematics in 2017, "for contributions to the theory and analysis of delayed dynamical systems and their applications".

Biography 
Member of the Society for Industrial and Applied Mathematics since 1992, ASME International since 2013, and Euromech since 2000. Chief editor of Periodica Polytechnica (1993-1994). Member of the editorial board of the following scientific journals: Journal of Vibration and Control (1994-2014), Journal of Nonlinear Science (1995-2017), Journal of Computational and Applied Mechanics (2000-2005), Philosophical Transactions of the Royal Society (2005-2010), Mechanism and Machine Theory (2006-), Physica D (1995-2019), ASME Journal Nonlinear and Computational Dynamics (2013-2018), and Nonlinear Dynamics (2014-).

Work 
His research areas are:
 Analytical mechanics: stability theory, delay systems, nonlinear vibrations
 Differential equations: bifurcation theory, delay differential equations, chaos
 Applications in mechanical engineering: nonlinear dynamics of wheels, vibration and stability issues of robots, force control, stabilization of unstable equilibria and motions, human balancing, machine tool vibrations, active nonlinear suspension systems, rehabilitation robotics

Main publications 
Gabor Stepan is author of more than one hundred scientific publications. 
Books: 
Retarded Dynamical Systems (Wiley, NY, 1989)
Semi-Discretization for Time-Delay Systems (Springer, NY, 2011)

Notes

Sources 
A Magyar Tudományos Akadémia tagjai 1825–2002 III. (R–ZS). Főszerk. Glatz Ferenc. Budapest: MTA Társadalomkutató Központ. 2003. 1165–1166. o.
MTI Ki Kicsoda 2009, Magyar Távirati Iroda Zrt., Budapest, 2008, 1005. old., 
Profile on the Hungarian Academy of Sciences webpage, with the list of publications
official homepage

1953 births
Living people
Academic staff of the Budapest University of Technology and Economics
Hungarian Academy of Sciences
Hungarian mechanical engineers
Fellows of the Society for Industrial and Applied Mathematics
Emscripten. Emscripten is an LLVM/Clang-based compiler that compiles C and C++ source code to WebAssembly, primarily for execution in web browsers.

Emscripten allows applications and libraries written in C or C++ to be compiled ahead of time and run efficiently in web browsers, typically at speeds comparable to or faster than interpreted or dynamically compiled JavaScript. It even emulates an entire POSIX operating system, enabling programmers to use functions from the C standard library (libc).

With the more recent development of the WebAssembly System Interface (WASI) and WebAssembly runtimes such as Node.js, Wasmtime, and Wasmer, Emscripten can also be used to compile to WebAssembly for execution in non-Web embeddings as well.

Usage 
Emscripten has been used to port a number of C/C++ code bases to WebAssembly, including Unreal Engine 3, SQLite, MeshLab, Bullet physics, AutoCAD, and a subset of the Qt application framework. Other examples of software ported to WebAssembly via Emscripten include the following:

Game engines 
The Unity, Defold, and Godot game engines provide an export option to HTML5, utilizing Emscripten.
Unreal Engine had this export option but it has been migrated out of the engine to a community member plug in.

Frameworks & toolkits 
openFrameworks exports native C++ applications to HTML5 via Emscripten. emscripten-qt permits compiling applications written using the Qt application framework to WebAssembly.

Software archiving 
In December 2014, the Internet Archive launched a DOSBox emulator compiled in Emscripten to provide browser-based access to thousands of archived MS-DOS and PC programs.

See also

 asm.js
 Google Native Client (PNaCl)
 WebAssembly

References

External links
 
 Project page on GitHub
 Emscripten Documentation
 Porting Examples and Demos
 A list of some WebAssembly runtimes

Compilers
JavaScript libraries
Software using the MIT license
Software using the University of Illinois/NCSA Open Source License
Source-to-source compilers
Teófilo Tabanera. Teófilo Tabanera (1909–1981) was an Argentine engineer and air force officer and an instrumental figure in space exploration.

Biography

Born in 1909 in the province of Mendoza, Tabanera moved to the capital of the province of Buenos Aires to study at the National University of La Plata, where he graduated in 1936. He went on study trips to the United States and Europe. He was a member of the British Interplanetary Society and the American Society of Rockets. He began working as a draftsman for Ferrocarriles Argentinos and YPF.

His interest in aerospace activity led him to found the Association Interplanetary Argentina in 1948 (which later was renamed Space Sciences Association of Argentina) where he dedicated himself to promoting the Argentine space program. He was present at the First International Astronautical Congress, held at the Sorbonne University in Paris. He was vice president of the International Astronautical Federation (IAF), for five consecutive terms, and president of the CNIE, founded in 1960 by a decree of the government of Arturo Frondizi (1958-1962). He was a member of the British Interplanetary Society and the American Society of Rockets. He was the only person in all of Latin America to author a weekly publication dedicated to space issues. This publication lasted for ten years.

1909 births
1981 deaths
20th-century Argentine engineers
National University of La Plata alumni
Airkraft Sunny. The Airkraft Sunny is an ultralight aircraft that was designed by Dieter Schulz. The aircraft was initially produced by his company, Tandem Aircraft KG of Saulgau, Germany, which built about 150 examples between 1989 and 1999. After he sold the rights in 1999, it was then produced by Dewald Leichtflugzeugbau Gmbh of Bad Schönborn, Germany and more recently by Airkraft Gmbh Leichtflugzeugbau of Beringen, Switzerland, who seem to have gone out of business in about 2010 and production ended. Originally supplied ready-to-fly, later the aircraft was supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.

Design and development
The aircraft complies with the Fédération Aéronautique Internationale microlight category rules. It features an unusual diamond-shaped biplane, strut-braced closed wing layout, a two-seats-in-tandem enclosed or open cockpit, fixed tricycle landing gear and a single engine in pusher configuration. The upper wing is swept back, while the lower wing is straight, but mounted further aft. The two wings are joined by swept tip rudders. The elevons are mounted to the lower wing only.

The aircraft is made from bolted-together aluminium tubing, with its flying surfaces covered in Dacron sailcloth. Standard engines available include many models of Hirth, Rotax, BMW and Verner 133M powerplants, ranging from .

Variants

Sunny Light
Version with open cockpit
Sunny Sport
Two seat tandem version with enclosed or semi-enclosed cockpit
Sunny Side-By-Side
Version with side-by-side configuration seats
Sunny Targa
Fully enclosed version.
Sunny Amphibian
Version with amphibious floats

Specifications (Sunny Light)

References

External links

Official website archive on Archive.org

1980s German ultralight aircraft
1980s Swiss ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
Closed-wing aircraft
AirLony Highlander. The AirLony Highlander is a Czech ultralight biplane that was designed and produced by AirLony of Štětí, introduced in 1998.

Design and development
The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a biplane wing configuration, a two-seats-in-tandem open cockpit, fixed conventional landing gear and a single engine in tractor configuration.

The aircraft has a composite fuselage and wooden-framed  span wings with doped aircraft fabric covering. Engines in the  can be used. The Highlander was designed for, but never approved for aerobatics.

Specifications (Highlander)

References

1990s Czech and Czechoslovak ultralight aircraft
Homebuilt aircraft
Highlander
Single-engined tractor aircraft
Biplanes
Stephen Cohen (entrepreneur). Stephen Cohen (born September 30, 1982) is an American computer scientist and entrepreneur. He is best known as a co-founder and the president of Palantir Technologies, a platform for analyzing integration and visualizing data used by governments and businesses. He is credited with creating the initial prototype of Palantir in eight weeks. Since then, he has interviewed over 4,500 candidates and continues to be actively involved in Palantir. Previously to Palantir, Cohen worked with Peter Thiel at Clarium Capital. He also served as an adviser to Backtype prior to its acquisition by Twitter in 2011.

Education
Cohen graduated from Stanford University with a BSc in computer science in 2005. While at Stanford he focused on machine learning, artificial intelligence, and natural language processing and did research with professor Andrew Ng, director of the Stanford Artificial Intelligence Lab.

References

Stanford University alumni
American computer scientists
21st-century American businesspeople
1982 births
Living people
Jewish American scientists
21st-century American Jews
Airo 1. The Airo 1 is a United Arab Emirates ultralight and light-sport aircraft produced by Airo Aviation of the Ras Al Khaimah Free Trade Zone. The aircraft is supplied as a complete ready-to-fly-aircraft.

Design and development
The aircraft is a licensed development of the Italian Euro Ala JetFox and was designed to comply with the Fédération Aéronautique Internationale microlight rules and also the US light-sport aircraft rules. It features a strut-braced high-wing, a two-seats-in-side-by-side configuration enclosed cockpit, fixed tricycle landing gear and a single engine in tractor configuration. The company claims it was accepted as a US LSA in 2008 but it did not appear on the official Federal Aviation Administration 2016 list of S-LSAs.

The aircraft is made from bolted-together aluminum tubing, with its flying surfaces covered in doped aircraft fabric. Its  span wing employs V-struts and jury struts. Standard engines available are the  Rotax 912UL and the  Rotax 912ULS four-stroke powerplants. The engine is mounted on the main keel tube that runs from the tail to the engine, mounting the engine above the cockpit.

Specifications (Airo 1)

References

External links

Company website archives on Archive.org

2000s Emirati ultralight aircraft
Light-sport aircraft
Single-engined tractor aircraft
Airo Aviation aircraft
Wearmouth Bridge (1796). The first Wearmouth Bridge was a bridge across the River Wear in Sunderland, England and the second major bridge to be made from cast iron. It was considered one of the wonders of the industrial age, and was described by Nikolaus Pevsner as being 'a triumph of the new metallurgy and engineering ingenuity [...] of superb elegance'.

Design

The bridge was instigated, sponsored and patented by Rowland Burdon, the Member of Parliament for County Durham, and built under the direction of Thomas Wilson, who designed its architectural features.

It was the second iron bridge built after The Iron Bridge, but was over twice as long with a nominal span of , and only three-quarters the weight. Indeed, at the time of building, it was the biggest single-span bridge in the world (72 m), matching the collapsed Trezzo Bridge in Italy.

The decision to use cast iron was strongly influenced by Thomas Paine, who had constructed a demonstration cast iron span of comparable length in Paddington in 1789, and had submitted models and designs for Wearmouth.

Construction

The foundation stone was laid in September 1793.

It is possible that two of the six main ribs used in the Wearmouth bridge, were created from the actual ribs used by Paine in his prototype, which had been returned to the Foundry in Rotherham where the ribs of both bridges were cast.

The bridge was opened in 1796.

Impact
According to the plaque on the current bridge, its construction "proved to be a catalyst for the growth of Sunderland," since access between Monkwearmouth and Bishopwearmouth had previously only been by ferry, with the nearest bridge at Chester-le-Street.

Operation
It opened to traffic on 9 August 1796, having cost a total of about £28,000.

There was originally a toll for traffic and pedestrians, although tolls for pedestrians were abolished in 1846.

1805 repair
In 1805 the bridge had to be repaired after heat from the sun caused some of the cross tubes to fall out.

1857 reconstruction and 1927 demolition

From 1857 to 1859 it was reconstructed by Robert Stephenson, who stripped the bridge back to its six iron ribs and levelled the roadway by raising the abutments. The bridge was reopened in March 1859, with the toll completely abolished in 1885.

The bridge was replaced by the current Wearmouth Bridge, built 1927-1929 at the same location.

Further reading

References

Cast-iron arch bridges in England
Bridges across the River Wear
Bridges completed in 1796
1796 establishments in Great Britain
Ringwood Aerodrome. Ringwood Aerodrome was an aerodrome constructed in 1942 by the Royal Australian Air Force as a satellite aerodrome near Eagleton, New South Wales, Australia during World War II.

The runway ran south west to north east and was  long x  wide. The aerodrome was used as a satellite field for RAAF Base Williamtown near Newcastle.

References

Former Royal Australian Air Force bases
Military establishments in the Hunter Region
History of Newcastle, New South Wales
Former military installations in New South Wales
Demesmaekerite. Demesmaekerite is a rare uranium selenite mineral with the chemical formula: Pb2Cu5(UO2)2(SeO3)6(OH)6·2H2O.

It is named after the Belgian mineralogist Gaston Demesmaeker, who worked at the Musonoi Mine in Katanga. It is a secondary mineral which contains lead, copper and selenium, it is a bottle green to brown/yellow color, its crystal habit varies depending on where it is found. It has pleochroic attributes, which means depending on which axis it is seen, the gem displays different colors, which is an optical phenomenon. On the X axis it displays a yellow-green color, and on the Y the gem is seen in a brown color. Demesmaekerite has a very strong radioactivity, 1,629,108.74, measured in GRapi (Gamma Ray American Petroleum Institute Units). It is mostly made out of oxygen (22.1%), uranium (21.92%) which causes its irradiative attributes, selenium (21.81%), lead (19.08%) which is a poisonous chemical element and copper (14.63%), but also contains hydrogen (0.46%).

It can be found associated with other rare selenium-bearing uranium ores, such as haynesite, guilleminite, marthozite and piretite.

References

Lead minerals
Copper minerals
Uranium(VI) minerals
Selenite minerals
Triclinic minerals
Minerals in space group 2
Cukurs C.6bis. Cukurs C.6bis was a Latvian prototype dive bomber aircraft designed by Herberts Cukurs in 1940.

Development 

The aircraft was based on the Cukurs C.6 Trīs zvaigznes (Three stars) trainer which was known for its 1937 flight from Riga to Tokyo and return.

Work on the C.6bis started in 1939, with the first test flights in 1940. Soon after first test flights the Latvian Air Force accepted the aircraft and ordered twelve.

Test flights were halted on the 7 June 1940, just 10 days before the Soviet occupation of Latvia in 1940. During the occupation the Red Army expressed interest in the C.6bis and test flew it, but they determined that it was unsuitable for use.

Only one example was built and its fate remains unknown.

Specifications (C.6bis)

References 

1930s Latvian military aircraft
1930s bomber aircraft
Aircraft first flown in 1940
Xiaonanhai Dam. The Xiaonanhai Dam was a proposed dam on the Yangtze River in Chongqing, China. It was to have an associated 1,760 MW hydroelectric power station. Preliminary construction on the dam began on 29 March 2012 and earliest completion was expected in 2019. However, it was cancelled in March 2015 due to environmental concerns.

Project initiation 
The project, under responsibility of the Chongqing municipal government, was initiated under the stewardship of Bo Xilai prior to his fall from grace in 2012. The dam was to be constructed by China Three Gorges Corporation 40 km upstream of the city, and 700 km upstream from the Three Gorges Dam.

Weng Lida, a former director of the water resources bureau at the Yangtze River Commission, said that senior China Three Gorges executives had succumbed to pressure from the Chongqing authorities. According to the South China Morning Post, Chongqing's success in overcoming all major obstacles to the dam's construction is attributed to the personal intervention of Bo.

Controversy 
The project was strongly opposed by environmentalists, who saw it as a "politically motivated decision". It was highly controversial due to the environmental impact, the high cost-benefit ratio, as well as the secretive decision-making process under Bo. A total of 338 freshwater fish species have been identified on the Yangtze. 189 live in the area – currently a preservation – and many of those are found in no other river basin in China.

An official study by the Yangtze River Commission in 2003 concluded that the Xiaonanhai dam could not be recommended due to its "unremarkable economic returns". According to Chongqing Daily, project cost per-kilowatt is triple that compared with other projects along the Yangtze: with total investment estimated at ¥32 billion, the project will cost ¥16,000 per-kilowatt of capacity, whereas the Three Gorges dam, Xiluodu Dam and Xiangjiaba cost ¥4,950, ¥3,538 and ¥5,749 respectively. Under pressure from environmental critics the central government in 2009.

On 14 December 2011 the State Council approved changes to shrink the boundaries of a Yangtze River preserve, clearing the way for the construction of the dam and the flooding of much of the preserve. Environmentalists also feared that the dam will seriously affect biodiversity and render extinct several endangered fish species, including the Chinese sturgeon and Chinese paddlefish. Critics were most bitter about the perceived silencing of leading mainland scientists who were previously allied with environmentalists in opposing the Xiaonanhai dam and the downsizing of a neighboring national fishery reserve to make way for the project.

A 30 March 2015 order given by the Ministry of Environmental Protection to cancel the dam surfaced in early April 2015. The order may be due to the project's encroachment on protected areas.

See also

List of dams and reservoirs in China
List of power stations in China

References

Hydroelectric power stations in Chongqing
Dams in China
Dams on the Yangtze River
Dam controversies
Cancelled projects in China
Cancelled hydroelectric power stations
History of the Yangtze
History of Chongqing
OpenCMIS. OpenCMIS is a subproject of the Apache Chemistry project of the Apache Software Foundation (ASF).

It is an open-source collection of Java libraries, frameworks and tools around the CMIS specification for document interoperability.

The goal of OpenCMIS is to make CMIS simple for client and server Java developers. It hides the binding details and provides APIs and SPIs on different abstraction levels. It also includes test tools for content repository developers and client application developers.

The OpenCMIS products are:

 A server-side Java library
 A client-side Java library
 A client-side Android library
 CMIS Workbench: a CMIS heavy client, that allows all CMIS operations, and allows to run the TCK unit tests
 OpenCMIS Server Webapps: a CMIS server and web user interface
 OpenCMIS JCR Repository: A wrapper to use JCR repositories via CMIS
 OpenCMIS Bridge

References 

Apache Software Foundation projects
B-class lifeboat. A B-class lifeboat is any of a series of inflatable boats operated by the Royal National Lifeboat Institution (RNLI):

Boats in this series include:
 Atlantic 21-class lifeboat, the first generation RIB operated by the RNLI
 Atlantic 75-class lifeboat, the second generation RIB operated by the RNLI
 Atlantic 85-class lifeboat, the third generation & current production model RIB operated by the RNLI
Gemini Wars. Gemini Wars is a 2012 space real-time strategy computer game developed by American studio Camel101.

History
Gemini Wars was released for Windows and Mac OS X on June 8, 2012.

Story
Players control a fleet commander that rises up through the ranks of the US Federation Forces. Beginning with a small group of frigates, they must control battleships, carriers, and planetary bases throughout space battles and boarding actions. Players can also build space stations with orbital facilities to fortify their position, build their fleet, extract minerals and research upgrades. Players must execute all boarding actions using Marine Special Forces and will have to bombard enemies with long-range cannons.

Reception

Gemini Wars received generally "mixed or negative" reviews, according to review aggregator Metacritic. Critics took issue with the slow pace, bugs and lack of a multiplayer mode but some praised the story. Destructoid called it frustrating while  said "Players who love RTS games with a nice story will however enjoy Gemini Wars."

References

External links
Camel101 Official Website

2012 video games
Video games developed in the United States
Windows games
MacOS games
Iceberg Interactive games
Real-time strategy video games
Video games set in outer space
Aviamilano Nibbio. The Aviamilano F.14 Nibbio (, as in the bird) is a four-seat, single engine cabin monoplane built in Italy in the late 1950s. Only ten production aircraft were completed.

Design and development

Designed by Stelio Frati, the Nibbio is a conventionally laid out, cantilever low wing monoplane, seating four in two rows.  It is a scaled-up version of Frati's successful two seat F.8 Falco.  The Nibbio has a wooden structure and is mostly plywood skinned with fabric overall, though the rear control surfaces have only fabric covering.  The single spar wing, which is straight tapered and square tipped carries electrically operated split flaps and has 5° of dihedral.

The fuselage is a two-part monocoque structure, bolted together.  The rear surfaces are tapered and straight edged; the elevator has a flight adjustable trim tab.  Forward, the upper fuselage line merges into that of the cabin glazing over a baggage space behind the rear bench seat.  The front seats have dual control.  Cabin access is via a starboard side door.  The Nibbio is powered by a 180 hp (134 kW) Lycoming O-360 air-cooled four cylinder horizontally opposed engine, fed fuel from one fuselage and two wing tanks. It has an electrically retractable tricycle undercarriage with hydraulic brakes and a steerable nosewheel. The main legs are wing mounted and retract inwards.

The Nibbio flew for the first time on 16 January 1958.

Operational history
After the prototype, Aviamilano built ten production Nibbios.

By 2010 only two Nibbios remained on the European civil aircraft registers, one in Italy and one in the UK.

Specifications

References

1950s Italian sport aircraft
Low-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1958