omniomni/omni-engineering huggingface dataset:
Dova DV-1 Skylark. The Dova DV-1 Skylark is a Czech ultralight and light-sport aircraft produced by Dova Aircraft of Paskov. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.

Design and development

The DV-1 was designed to comply with the Fédération Aéronautique Internationale microlight rules and US light-sport aircraft rules. It features a cantilever low-wing, a T-tail, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fixed tricycle landing gear with wheel pants and a single engine in tractor configuration.

The aircraft is made from aluminum sheet. Its  span wing has an area of  and is equipped with flaps and winglets. Standard engines available are the  Rotax 912UL,  Rotax 912ULS,  turbocharged Rotax 914 and the BMW 1100 four-stroke powerplants.

The design is an accepted Federal Aviation Administration special light-sport aircraft.

Operational history
By February 2017 seven examples had been registered in the United States with the Federal Aviation Administration.

Variants
DV-1 Skylark
Model with a T-tail and winglets.
DV-2 Infinity
Model with a cruciform tail and no winglets. It is almost  faster than the DV-1.

Specifications (DV-1 Skylark)

References

External links

2000s Czech ultralight aircraft
Homebuilt aircraft
Light-sport aircraft
Single-engined tractor aircraft
T-tail aircraft
BIGSIM. BIGSIM is a computer simulation and performance modeling system for parallel computing, typically used for very large computer clusters. BIGSIM was developed at the University of Illinois.

When a large scale, often supercomputer level, parallel system is being developed, it is essential to be able to experiment with multiple configurations and simulate performance. BIGSIM provides these facilities by allowing the simulation of performance on various node topologies, message passing and scheduling strategies. 

BIGSIM includes an emulator and a trace-based simulator. The emulator executes applications on a small number of nodes and stores the results, so the simulator can use them  and simulate activities on a much larger number of nodes. 

The simulator is a discrete event simulator (based on the POSE system) which is trace driven and uses POSE's Charm++ base. BIGSIM can simulate both the processing components and the message passing system to provide an overall view of system performance characteristics. 

The emulator stores information of sequential execution blocks (SEBs) for multiple processors in log files, with each SEB recording the messages sent, their sources and destinations, dependencies, timings, etc. The simulator reads the log files and simulates them, and may star additional messages which are then also stored as SEBs. 

The simulator can thus provide a view of the performance of very large applications, based on the execution traces provided by the emulator on a much smaller number of nodes, before the entire machine is available, or configured.

See also
 SimGrid

References

Parallel computing
Brian O'Regan (chemist). Brian C. O'Regan is an American chemist known for the co-invention of dye-sensitized solar cells (DSSC, DSC, SSC). He was previously  a Research Lecturer at Imperial College London where he conducted research on photovoltaic cells and other applications of nano-structured oxide electronic materials.

Major scientific contributions

Brian O'Regan is known for his pioneering work on the deposition of meso-porous oxides from colloidal solutions that ultimately led to the first high efficiency DSSC. He has also developed the first high efficiency non-aqueous electrolyte for DSSC and more recently has overturned the belief that water is poisonous to dye sensitisation by designing water based and water tolerant DSSC.
He has invented TiO2 electrodeposition from TiCl3, electrodeposition of CuSCB and non-aqueous electrodeposition of aligned mesoporous ZnO. He holds 5 patents and is the author of numerous research papers.

References

External links
 Brian O'Regan's account of the invention of DSSC can be found here

21st-century American chemists
Year of birth missing (living people)
Living people
University of California, Berkeley alumni
University of Washington alumni
Doyle O-2 Oriole. The Doyle Aero O-2 Oriole or Doyle O-2 was a parasol wing aircraft.

Development
Brothers Harvey and Wilson Doyle designed the Vulcan American Moth Monoplane in 1928. They left the Vulcan Aircraft Company after a disagreement with its founder and moved to Baltimore Maryland with backing from Lawyer Charles Baldwin. They set to work on a new monoplane, with test pilot Otto Melamet flying the prototype O-2 Oriole on 15 October 1928.

Design
The O-2 is a parasol wing, conventional landing gear, strut-braced, tandem-seat, open cockpit, sport aircraft. The fuselage is constructed of welded steel tubing with an aluminum turtledeck and belly covers, covered with fabric. The wing uses wooden spars and ribs with the fuel tanks the wing roots. A small door provided access to the front seat.

Operational history
Serial number 2 and 3 were wrecked en route to the All-American airshow in Detroit to demonstrate the aircraft. Serial number 5 was rushed to completion to be trucked to the event. The same aircraft was restored in 1987 and still is airworthy with a private owner.

Variants
O-3 Oriole
O-2 modified with a  Chevrolair D-4 engine

Specifications (O-2 Oriole)

See also

References

Parasol-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1928
1920s United States sport aircraft
ILAND project. The iLAND project (middleware for deterministic dynamically reconfigurable networked embedded systems)  is a cross-industry research & development project for advanced research in embedded systems. It has been developed with the collaboration of 9 organisations including Industries, SMEs and Universities from Spain, France, Portugal, Netherlands and a university from United States. The project is co-funded by the ARTEMIS Programme related to the topic: 'SP5 Computing Environments for Embedded Systems'.

Middleware functionalities 
The merging of the real-time systems and the service-oriented architectures enables more flexible a dynamic distributed systems with real time features.  So a number of functionalities have been identified to create a SoA based middleware for deterministic reconfiguration of service-based applications:
 Service registration/deregistration: Stores in the system the functionalities and the description of the different services.
 Service discovery: Enables external actor to discover the services currently stored in the system.
 Service composition: Creates the service-based application on run-time.
 Service orchestration: Manages the invocation of the different services.
 Service based admission test: This functionality checks if there are enough resources for the services execution in the distributed system.
 Resource reservation: This functionality acquires the necessary resources in the host machine and the network.
 System monitoring: This functionality measures if the resources required for the execution of services are not being exhausted.
 System reconfiguration: This functionality changes the services currently running on the system by other services providing same functionality.

Middleware architecture 
The architecture of the iLAND middleware consists in two layers. The high level one is the Core Functionality Layer. It is oriented to the management of the real time service model. The low layer creates bridges to the system resources and the network resources in order to provide the real time operation. Each of these layers contain different software components

The middleware architecture is further explained in  where the reconfiguration mechanism of the middleware is also explained.

Demonstrators 

Different demonstrators have been developed in the iLAND project. They cover different domains:
 Wireless Applications for Public Transportation
 Video Surveillance
 Health Care Applications

References

Embedded systems
Vulcan American Moth Monoplane. The Vulcan American Moth Monoplane was an early parasol-wing monoplane developed by the Doyle brothers.

Development
Wilson Doyle graduated Harvard in 1925, and his brother Harvey from Yale the same year. They moved to Detroit looking for employment in aviation and backing for a new aircraft design. Their first job was working as draftsmen on the ZMC-2 airship, then construction on the Hess H-1 Bluebird line. Ford Trimotor engineer Jan Pavlecka introduced the brothers to William Burke of the Vulcan Last Company, which produced golf clubs among other items. They founded the Vulcan Aircraft Corporation. The name of their first aircraft was chosen to capitalize on the popularity of the de Havilland Tiger Moth.

Design
The American Moth is a strut-braced, high-wing monoplane with conventional landing gear and a tandem open cockpit, requiring the front passenger to enter through the removable backrest between cockpits. The fuselage is made of welded steel tubing with fabric covering. The tapered wings use spruce spars with aluminum wing ribs. The ailerons and elevators used aluminum push-pull tubes rather than cables for control deflection. The standard factory paint scheme was scarlet, red and ivory.

A selection of engines could be fitted; 60 or 90 hp Le Blond, 60 or 80 hp Anzani, or a 70 hp Ryan-Siemens.

Operational history
Pathe News filmed ground runs of the American Moth. The first test flight was flown by Pat Love. Vulcan promoted its aircraft by touring from city to city golf courses having promoter Benny Martinez parachute with a set of Vulcan golf clubs. Martinez eventually broke his leg and Vulcan's chief pilot Pat Love died a year later in a crash. The 3,300 mile tour concluded in March 1928. Later that year, Burke died of a heart attack and the assets of the company were sold to Davis Aircraft in Richmond, Indiana. Dwight Huntington modified the drawings to produce the Davis V-3, Davis D-1, and a custom racer totaling about 60 aircraft built, before the company stopped production in 1929 after a doping-process fueled fire.

Variants
Davis V-3

Specifications (60 hp Le Blond engine)

References

External links

 

Parasol-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1928
1920s United States sport aircraft
RS-88. The RS-88 (Rocket System-88) is a liquid-fueled rocket engine designed and built in the United States by Rocketdyne (later Pratt & Whitney Rocketdyne and then Aerojet Rocketdyne). Originally developed for NASA's Bantam System Technology program in 1997, the RS-88 burned ethanol fuel with liquid oxygen (LOX) as the oxidizer. It offered  of thrust at sea level.

A hypergolic derivative of the RS-88, fueled by monomethylhydrazine and nitrogen tetroxide, was chosen as the launch escape motor for the Boeing Starliner capsule.

Origins and Testing 
The RS-88 stemmed from NASA's Bantam System Technology Project, part of the Low-Cost Technologies effort of the larger Advanced Space Transportation Program. This project aimed to research and demonstrate technologies for a new, affordable launch system. While the program envisioned a technology demonstration flight in late 1999, it ultimately focused on engine development.

NASA tested the RS-88 in a series of 14 hot-fire tests, resulting in 55 seconds of successful engine operation in November and December 2003.

In 2003, Lockheed Martin selected the RS-88 for their pad abort demonstration vehicle. NASA successfully tested the engine in a series of hot-fire tests, demonstrating its reliability.

Starliner Launch Escape System 

A hypergolic derivative of the RS-88, fueled by monomethylhydrazine (MMH) and nitrogen tetroxide, was chosen as the launch escape motor for the Boeing Starliner capsule. This variant, called the Launch Abort Engine (LAE), provides  of thrust. Four LAE engines are used in Starliner's abort system to propel the capsule away from the launch vehicle in case of an emergency.

See also 
 NASA Advanced Space Transportation Program
 Merlin (rocket engine)

References

External links 

 Marshall SFC Star June 11, 1997.
 RS-88 PAD Testing at NASA MSFC May 2005, AIAA

Rocket engines using alcohol propellant
Rocketdyne engines
Rocket engines of the United States
Rocket engines using the pressure-fed cycle
Rocket engines using hypergolic propellant
Marinens Flyvebaatfabrikk M.F.6. The Marinens Flyvebaatfabrikk M.F.6 was a two-seat biplane floatplane built by the Royal Norwegian Navy Air Service aircraft factory Marinens Flyvebaatfabrikk in 1921. The M.F.6 was designed and employed as a trainer aircraft. The type was the last pusher configuration aircraft in service with the Royal Norwegian Navy Air Service. The M.F.6 functioned as a makeshift solution until a more modern tractor configuration aircraft could be built. The type was retired once a more permanent solution to the Royal Norwegian Navy Air Service's training needs was found in mid-1920s.

Design and development
In the early 1920s the Royal Norwegian Navy Air Service discovered that its main trainer type, the Marinens Flyvebaatfabrikk M.F.4, suffered from weaknesses in the wings. Initially requests for new aircraft were dismissed by the Ministry of Defence, but following the loss of one M.F.4 permission was granted for the construction of two Farman type pusher aircraft as an emergency solution. The Marinens Flyvebaatfabrikk M.F.6 was the last Maurice Farman type built for the Royal Norwegian Navy Air Service, as well as the service's last pusher type. The M.F.6 was powered by a Beardmore 160 hp engine, imported from the United Kingdom. Concurrently with the construction of the M.F.6 another interim aircraft type was designed by Marinens Flyvebaatfabrikk for the Royal Norwegian Navy Air Service, the tractor configuration type Marinens Flyvebaatfabrikk M.F.7.

Operational history
One M.F.6 (F.10 (IV)) was delivered from Marinens Flyvebaatfabrikk in 1921, and a second (F.4 (IV))in 1922. F.10 (IV) had its first flight on 30 April 1921, followed by F.4 (IV) on 16 June 1922. The type served until replaced by the much more modern Marinens Flyvebaatfabrikk M.F.8 in the mid-1920s. F.10 (IV) was discarded in 1926 and F.4 (IV) in May 1927, following the 1924 introduction of the M.F.8. By the time of retirement, F.10 (IV) had flown for 439 hours and 50 minutes, while F.4 (IV) had flown for 333 hours and 50 minutes. None of the two aircraft suffered any major accidents during their service lives.

Specifications

References
Notes

Citations

Bibliography
 
 
 

1920s Norwegian military trainer aircraft
MF06
Single-engined pusher aircraft
Floatplanes
Biplanes
Aircraft first flown in 1921
Arnold Beck. Arnold Hugh William Beck (7 August 1916 – 11 October 1997) was a British scientist and electrical engineer, a specialist in plasma and microwaves, Professor of Engineering in the University of Cambridge.

Early life and education 
The younger son of Major Hugh Beck and Diana L. Beck, the young Beck was educated at Gresham's School, Holt, and University College, London, where he graduated BSc Eng. His old college elected him to a Fellowship in 1979.

Career 
In 1937, after graduation, Beck became a research engineer with Henry Hughes & Sons, remaining with the firm until 1941. Then, with the Second World War in progress, he was seconded to the Admiralty Signal Establishment until 1945. From 1947 he was an engineer with Standard Telephones and Cables, ultimately as head of the Valve Research Division. In 1958 he was appointed a Lecturer in Electrical Engineering at Cambridge, where he led a group researching new ways to generate very high frequency radio waves. In 1964 he was promoted to Reader and in 1966 was elected to one of the three Professorships of Engineering established that year. He was also Head of the University's Electrical Division from 1971 to 1981, and when he retired in 1983 he was given the title of Emeritus Professor and was elected a Life Fellow of Corpus Christi, where he had been a Fellow since 1962.

Personal life 
In 1947, Beck married Monica, a daughter of Samuel K Ratcliffe, they had no children, but raised her son Nicolas Walter from her previous marriage to William Grey Walter. In 1959, he was elected a Fellow of the Institute of Electrical and Electronics Engineers.

Publications
Velocity Modulated Thermionic Tubes (1948)
Thermionic Valves (1953)
Space-charge Waves (1958)
Words and Waves (1967)
Introduction to Physical Electronics (with H. Ahmed) (1968)
Handbook of Vacuum Physics, Vol. 2, Parts 5 and 6, 1968
Statistical Mechanics, Fluctuations and Noise (1976)

See also
Sukumar Brahma
Johan H. Enslin

References

1916 births
1997 deaths
Alumni of University College London
Fellows of Corpus Christi College, Cambridge
People educated at Gresham's School
Professors of engineering (Cambridge)
British electrical engineers
Fellows of the IEEE
Admiralty personnel of World War II
721 series. The  is an AC electric multiple unit (EMU) operated by Hokkaido Railway Company (JR Hokkaido) on Sapporo area suburban services in Hokkaido, Japan since 1988.

Design
The trains were built jointly by Hitachi, JR Hokkaido (Naebo Factory), Kawasaki Heavy Industries, and Tokyu Car (Yokohama).

Fleet
As of 1 April 2012, the fleet consists of 135 vehicles, formed as 23 3-car sets and 11 6-car sets.

Variants
 721-0 series
 721-1000 series
 721-2000 series
 721-3000 series
 721-4000 series
 721-5000 series

Withdrawal
Withdrawals of the 721 series commenced in 2023 with 721-3000 series set F-3016 being scrapped as of August. This continued the following year with sets F-4 and F-3015 being sent to Naebo for scrapping in April 2024.

In April 2024, JR Hokkaido announced that it will replace the 721 series with additional 733 series trains on Chitose Line Airport services.

References

Electric multiple units of Japan
Hokkaido Railway Company
Train-related introductions in 1988
Hitachi multiple units
Kawasaki multiple units
Tokyu Car multiple units
20 kV AC multiple units
Henry Coathupe Mais. Henry Coathupe Mais (14 May 1827 – 25 February 1916) was a British-born Australian engineer. He was engineer-in-chief to the Government of South Australia, and chairman of the Victorian Advisory Committee of the Institution of Civil Engineers for sixteen years.

Early life and education
Mais was born in Westbury on Trym, Bristol, England, the son of Henry Mais (1805–1888), engineer, and his wife Amelia Jane, née Coathupe (1803–1868). Mais junior was educated at Bishop's College, Bristol, and was articled for seven years to W. M. Peniston, one of Isambard Kingdom Brunel's chief engineers, working on English railways. At Birmingham, Mais made steam engines and superintended the building of locomotives at Swindon, in 1850 he worked on the Port of Hull docks.

Emigration to and career in Australia
Mais migrated to Australia, intending to start an engineering business arriving in Sydney in December 1850. However, he found unsettled conditions and became acting engineer for the Sydney Railway Company. Later he worked as assistant engineer for City Commissioners' Department on the water and sewerage works. In January 1857 a select committee accused him of inexcusable errors and 'gross misconduct'.

Mais then went to Victoria and worked for the railway contractors Cornish & Bruce on the Sandhurst-Melbourne line. For three years he was engineer and general manager of the Melbourne and Suburban Railway Company, he won praise as a 'first class man in every sense of the word'. The Colonial Bank of Australasia awarded him £25 in December 1863 for his conduct of the Melbourne railway during the floods.

On 27 March 1867 Mais was appointed engineer-in-chief to the South Australian Government on a salary of £750. He was elected president of the Royal Society of South Australia in 1885. He resigned as engineer-in-chief in March 1888 after being accused of accepting private work and using government draftsmen on Silverton Tramway Company projects.
 
Mais then became a consulting engineer in Melbourne, was chairman of the Victorian Advisory Committee of the Institution of Civil Engineers for sixteen years. He was a member of the Institution of Civil Engineers (London), of the Society of Engineers UK, and the American Society of Civil Engineers. He died at his home in South Yarra, Victoria on 25 February 1916 and was survived by three sons and two daughters. He was buried in Kew Cemetery on 28 February 1916.

References

1827 births
1916 deaths
Australian engineers
People from Westbury-on-Trym
Plan X. Plan X is a Defense Advanced Research Projects Agency (DARPA) program, which seeks to develop a defensive platform for the Department of Defense to plan for, conduct, and assess cyberwarfare in a manner similar to kinetic warfare. Towards this end, the program will bridge cyber communities of interest from academe, to the defense industrial base, to the commercial tech industry, to user-experience experts.

Plan X will not develop cyber offensive technologies or effects. National policymakers, not DARPA, will determine how the cyber capabilities developed under Plan X will be employed to serve the national security interests of the United States.

Specifically, the Plan X program to integrate the cyber battlespace concepts of the network map, operational unit, and capability set in the planning, execution, and measurement phases of military cyber operations. To achieve this goal, the Plan X system will be developed as an open platform architecture for integration with government and industry technologies.

The Plan X program is explicitly not funding research and development efforts in cyberweapon-related technologies such as vulnerability analysis, command and control protocols, or end effects.

References

DARPA
Research projects