omniomni/omni-engineering huggingface dataset:
Nebula (computing platform). Nebula is a federal cloud computing platform that originated at NASA Ames Research Center at Moffett Field, California. Nebula hosted many advanced research projects.  One application Open Sourced by NASA and developed by the Nebula project, 'nova' became one of the two founding projects of the OpenStack project.

History 

The Ames Internet Exchange (AIX), was formerly MAE-West, one of the original nodes of the Internet, and is a major peering location for Tier 1 ISPs, as well as being the home of the "E" root name servers.  The AIX provides connectivity to the Nebula Cloud, enabling 10 Gigabit Ethernet connections to NISN.

The Nebula-Project uses a variety of free and open-source software.

See also 
 Eucalyptus (computing)
 Ganeti

References

External links 
 
Interview with Chris C. Kemp about NASA Nebula on Federal News Radio
Chris C. Kemp participation in Meritalk/AFFIRM Luncheon CIO/CFO Panel: The New IT Economics May 21, 2009

Cloud platforms
Cloud computing providers
NASA
Grout curtain. A grout curtain is a barrier that protects the foundation of a dam from seepage and can be made during initial construction or during repair. Additionally, they can be used to strengthen foundations and contain spills.

Characteristics
A grout curtain usually consists of a row of vertically drilled holes filled with pressurized grout, a process commonly known as pressure grouting.  The holes are drilled in intervals and in such a way that they cross each other, creating a curtain.

Method
Grout is injected with grouting jets, which use a high-pressure fluid stream (i.e., slurry or water) to erode a cavity in the soil.

See also
Levee
Dam failure

References

External links
Curtain Grouting the Georgetown Lighthouse
Avanti Group Case Study: Constructing Grout Curtain for Dam
Barden Ridge Dam, Sutherland, NSW - Grout Intensity Number (GIN) Method Project 
Technical Resource for Jet Grouting

Geotechnical shoring structures
Yokosuka Ro-go Ko-gata. The Yokosuka Ro-go Ko-gata (YokoSho-shiki Ro-go Ko-gata) was a Japanese reconnaissance floatplane developed during the First World War by the Japanese Navy Arsenal at Yokosuka, and one of the first indigenous Japanese aircraft to enter production. There were 218 of these aircraft built for the Imperial Japanese Navy, which remained in use until 1928.

Development and design
The Japanese Navy Arsenal at Yokosuka became involved in aircraft production in 1913, when an aeroplane factory was set up, with its first work being to build several Maurice Farman and Curtiss Seaplanes.  It continued to build aircraft under license, including more Farman aircraft and several Short 184 seaplanes, as well as prototypes of several of its own designs.

In 1917, Chikuhei Nakajima, chief designer of the Yokosuka Arsenal aircraft factory designed a new reconnaissance floatplane. A prototype of this new design, powered by a 140 hp (104 kW) Salmson water-cooled radial engine, made its maiden flight early in 1918.  Test results were good, and the type was ordered into production as the Ro-go Ko-gata.

The Ro-go Ko-gata was a three-bay biplane of wood and fabric construction, with twin main floats and wings that folded backwards for storage.  Its crew of two sat in separate, closely spaced cockpits.  Initial production aircraft were powered by 200 hp (149 kW) Salmson engines, but the majority of production aircraft were fitted with 200–220 hp (149–164 kW) Mitsubishi-built Hispano-Suiza 8 V-8 engines.

A total of 218 aircraft were built in total, 32 by the Yokosuka arsenal, 80 by Aichi and 106 by the Nakajima Aircraft Company, with production continuing until 1924.  It was the first locally-designed aircraft to be built in large numbers for the Japanese Navy.

Operational history
Three of the early aircraft were modified in 1919 for making long-range flights, with one of the cockpits replaced by additional fuel storage. This allowed a record flight of 1,300 km (808 mi) to be flown in 11 hours, 35 min on 20 April 1919.  The Ro-go Ko-gata, along with licensed built Hansa-Brandenburg W.29s, replaced the obsolete pusher Farmans in Japanese Navy service, remaining in large scale service until 1926, being re-designated Yokosho-Type Reconnaissance Seaplane in 1923.  Several were sold for civilian use, and were used to carry airmail until 1928.

Units using this aircraft

Imperial Japanese Navy

Specifications (Production type)

Notes
 Under the designation system introduced by the Imperial Japanese Navy in 1918, this designation corresponded to Model A reconnaissance aircraft.
  Yokosho was an acronym standing for Yokosuka Kaigun Ko-Sho (Yokosuka Naval Arsenal).

References

Bibliography

 Donald, David (ed.) The Encyclopedia of World Aircraft. Leicester, UK: Blitz Editions, 1997. .
Mikesh, Robert and Abe, Shorzoe. Japanese Aircraft 1910-1941. London:Putnam, 1990. .

Ro-go Ko-gata
1910s Japanese military reconnaissance aircraft
Floatplanes
Biplanes
Single-engined tractor aircraft
Aircraft first flown in 1918
Regional Information Sharing Systems. Regional Information Sharing Systems (RISS) is an information-sharing program funded by the U.S. Federal government whose purpose is to connect databases from local and regional law enforcement so that they can use each other's data for criminal investigations.

In 1997, RISS created RISSNET, a network to interconnect many local, state, regional, and tribal law enforcement databases.

In 2002, RISSNET was connected with the FBI's Law Enforcement Online system.

In 2003, the National Criminal Intelligence Sharing Plan (NCISP) declared that RISSNET would be the official "backbone" for all unclassified, but sensitive criminal intelligence data traffic. Later that year, members were also given access to the Automated Trusted Information Exchange (ATIX) database, which contains information on homeland security and terrorist threats.

See also
 Automated Trusted Information Exchange
 Joint Regional Information Exchange System
 Multistate Anti-Terrorism Information Exchange

References

External links
 

Surveillance
Chiang C. Mei. Chiang Chung "CC" Mei (born 4 April 1935) is a Taiwanese-American physicist who is the Ford Professor of Engineering, Emeritus, at the Department of Civil and Environmental Engineering of Massachusetts Institute of Technology, known for his contributions in fluid mechanics with applications to civil, environmental, and coastal engineering.

Education
Mei received his B.S. (1955) from National Taiwan University, M.S. (1958) from Stanford University, and Ph.D. (1963) from California Institute of Technology.

Career 
He has been an Associate Editor of the Journal of Fluid Mechanics. He received the Moffatt–Nichol Award in 1992 and the International Coastal Engineering Award in 1995, both from the American Society of Civil Engineers. He was awarded the Theodore von Karman Medal in 2007.

The 24th International Workshop on Water Waves and Floating Bodies of 2009 is dedicated to Mei on the occasion of his retirement. In the same year, the "C.C. Mei Symposium on Wave Mechanics and Hydrodynamics" was organised at the International Conference on Ocean, Offshore and Arctic Engineering (OMAE).

Books

References

External links 

1935 births
Living people
American people of Taiwanese descent
MIT School of Engineering faculty
Fluid dynamicists
National Taiwan University alumni
Stanford University alumni
California Institute of Technology alumni
Members of the United States National Academy of Engineering
American people of Chinese descent
British Celanese. British Celanese was a chemical company based in England. Formed in 1916,  it survived as an independent company until 1957 when it became a subsidiary of Courtaulds.

History
The origins of the company lie with two brothers, Henri and Camille Dreyfus. In 1912, they set up "Cellonit Gesellschaft Dreyfus and Co" in Basel, Switzerland. In 1916, the brothers were invited to live in Britain by the British Government, to produce their recently developed cellulose acetate dope for the war effort; the canvas skins of aircraft of the time were sealed and made taut with nitrocellulose dope, which was easily ignited by bullets. 
They developed the necessary plant and "British Cellulose and Chemical Manufacturing Co" was registered on March 18, 1916. The British Government patented the process developed by Henri Dreyfus, which lowered the costs of acetic anhydride production, an important reagent in the production of cellulose acetate. At the end of World War I, the British Government cancelled all contracts and the company changed to produce acetate fibres. In 1923 the company name was changed to British Celanese Ltd, a contraction of cellulose and ease. Softer and stronger, as well as being cheaper to produce than other fabrics used at the time such as satin or taffeta, Celanese was used in the production of garments. In the interwar era, the company benefited from tariff protection extended to the rayon industry by the Finance Act of 1925. British Celanese was the first factory in Britain to produce propylene and from it isopropyl alcohol and acetone in 1942.

Clarifoil production developed out of cellulose acetate yarn technology. Clarifoil full-scale production commenced from 1947.

Henri Dreyfus died in 1944. Camille Dreyfus died in 1956.

In 1957, British Celanese was taken over by Courtaulds. The site is now operated by Celanese.

The plant with the exception of Clarifoil finally closed after the last shift on Wednesday 14 November 2012.

Locations
British Celanese had its principal manufacturing facility at Spondon in Derby. The site was constructed between 1916 and 1918 by Sir Robert McAlpine with £5million provided by the War Office. Over 30 million bricks were used in the construction, and the original site covered 121 hectares.

References

External links
 

Companies based in Derby
1916 establishments in England
Chemical companies of the United Kingdom
Synthetic fibers
British companies established in 1916
Technology companies established in 1916
List of Water Management Areas. Water Management Areas (WMAs) are parts of South Africa that are managed by Catchment Management Agencies (CMAs). A CMA is established in terms of the National Water Act of 1998. (As of December 2020 only two CMAs have been established).

The list should be complete, and in accordance with the definitions of the Department of Water Affairs. Apart from these WMAs they also have a number of Water Drainage Areas (some dams are only used for drainage, some seem to be used for both).

List of Water Management Areas

See also 
 List of dams and reservoirs in South Africa
 List of drainage basins of South Africa
 List of rivers of South Africa

References 

 Hydrology
 Water Management Area Maps

 
Water
SNCAC NC.860. 

The SNCAC NC.860 (also known as the Aérocentre NC.860) was a French twin-engined development of the NC.853 light aircraft.

Development
The NC.860 was developed from the earlier NC.853 single-engined high-wing monoplane, major changes included a four-seat cabin and the fitting of two  Walter Minor 4-III engines on a re-designed wing. With the engines mounted on the high-wing the wing span was increased and the NC.860 had a tricycle landing gear.

The NC.860, registered F-WFKJ, first flew 28 March 1949.

Specification

References

Notes

Bibliography

External links
AviaFrance S.N.C.A.C. NC-860 (including image)

1940s French civil utility aircraft
086
High-wing aircraft
Aircraft first flown in 1949
Sikorsky XHJS. The Sikorsky XHJS-1 (manufacturer designation S-53),  was developed by Sikorsky Aircraft to meet a Naval requirement for a utility helicopter. The XHJS-1 was not ordered into production and only two prototypes were built.

Design and development
Powered by a  Continental R-975-34, the S-53 was a development of the S-51 designed for use on aircraft carriers. The tail rotor was raised above head-height to give more clearance and the landing gear was made stronger to enable operations from a moving deck. Other enhancements were a folding main rotor and the option for amphibious landing gear. Two prototypes were ordered by the United States Navy as the XHJS-1 and the first flew on 22 September 1947. The type was evaluated against the Piasecki XHJP-1. With the Piasecki design being ordered as the HUP-1 by the Navy, the S-53 was not developed further.

Variants
XHJS-1
Prototype naval utility helicopter, two built.

Specifications (XHJS-1)

See also

References

Notes

Bibliography
 

HJS
United States military helicopters
1940s United States military utility aircraft
1940s United States helicopters
Single-engined piston helicopters
Aircraft first flown in 1947
Dallison. The Dallison was an English cyclecar made in 1913 only by the Dallison Gearing and Motor Co Ltd based in Birmingham.

The car was powered by a Precision air- or water-cooled, V twin engine driving the rear wheels by, unusually, a five-speed gearbox and worm gear final drive.

It was planned to make 30 cars a week but it is unlikely that this actually happened.

See also
 List of car manufacturers of the United Kingdom

References 

Cyclecars
Defunct motor vehicle manufacturers of England
Vehicles introduced in 1913
1913 in England
Defunct companies based in Birmingham, West Midlands
Toulouse Space Centre. The Toulouse Space Centre (; CST) is a research and development centre of CNES. Founded in September 1968, it is located in the Rangueil-Lespinet district of Toulouse in the Haute-Garonne department in the Occitanie region in France. The largest national space center in Europe, CNES is haven to more than 1,700 employees, responsible for the development of most of the work, with the exception of launch vehicles and their launches.

See also

References

External links 
 Official site of CNES
 « Le Centre spatial de Toulouse », in Le CNES, moteur de la politique spatiale de la France et de l'Europe, .

Space technology research institutes
CNES
Time capture. Time capture is the concept of making sense of time-related data based on timestamps generated by system software. Software that run on PCs and other digital devices rely on internal software clocks to generate timestamps. In turn, these timestamps serve as the basis for representing when an event has occurred (i.e. when an outgoing call was made), and for how long that event lasted (i.e. the duration of a phone call).

Time capture software use data mining techniques to index, cleanse and make sense of this data. Applications include automated time tracking, where software can track the time a user spends on various PC-based tasks, such as time in applications, files/documents, web pages (via browser), and emails.

This is a comparison of notable time capture software packages.

Microcomputer software
Osmar R. Zaiane. Osmar R. Zaiane (born April 11, 1965, in Bad Kissingen, Germany) is a researcher, computer scientist, professor at the University of Alberta specializing in data mining and machine learning. He was the secretary treasurer of the Association for Computing Machinery (ACM) Special Interest Group on Knowledge Discovery and Data Mining (SIGKDD) from 2009 to 2012  and treasurer of the ACM Special Interest Group on Health Informatics. He served as the editor-in-chief of the SIGKDD Explorations publication from 2008 to 2010. He was also the associate editor of the same publication from 2004 to 2007.

A former PhD student of Professor Jiawei Han, he did his PhD on knowledge discovery from data at Simon Fraser University.
Since 1999 he has been a professor in the Department of Computing Science at the University of Alberta in Canada, and was the scientific director of the Alberta Machine Intelligence Institute, formerly known as Alberta Innovates Centre for Machine Learning (AICML), from 2009 to 2020.
He held visiting professor positions at Chung-Ang University in Korea, the University of Sydney in Australia, and Jean Monnet University in France.
In 2009 he obtained the IEEE ICDM Outstanding Service Award, as well as the 2010 ACM SIGKDD Service Award the following year.
He is a Canada CIFAR AI Chair holder with the Canadian Institute for Advanced Research, a Fellow of the Canadian Academy of Engineering, and a Fellow of the Asia-Pacific Artificial Intelligence Association. In 2024, he received the 2023 CS-Can/Info-Can Lifetime Achievement Award.

References

External links 
 Osmar Zaiane's academic website
 Academic Genealogy

German computer scientists
People from Bad Kissingen
Academic staff of the University of Alberta
1965 births
Living people
Data miners
Université Laval alumni
Hirth F-30. The Hirth F-30 is a horizontally opposed four-cylinder, two-stroke, carburetted aircraft engine, with optional fuel injection, designed for use on ultralight aircraft and homebuilts. It is manufactured by Hirth of Germany.

Development
The F-30 is equipped with a dual capacitor discharge ignition system and is free-air-cooled, with optional fan cooling. The cylinder walls are electrochemically coated with Nikasil. Standard starting is electric start and recoil start is not an option. The reduction drive system available is the G-40 gearbox with optional reduction ratios of 2.03:1, 2.25:1, 2.64:1, 2.96:1 and 3.33:1. A centrifugal clutch is also available as optional equipment.

The engine runs on a 50:1 pre-mix of unleaded 93 octane auto fuel and oil.

Variants
F-30
Four-cylinder horizontally opposed, two-stroke, aircraft engine with a dual 38 mm diaphragm carburetors. Produces  at 5,500 rpm if free-air-cooled or  at 5,500 rpm if fan cooled. It has a factory rated time between overhaul (TBO) of 1,200 hours. Currently in production.
F-30E
Four-cylinder horizontally opposed, two-stroke, aircraft engine with fuel injection. Produces  at 5,500 rpm if free-air-cooled or  at 5,500 rpm if fan cooled. It has a factory rated TBO of 1,200 hours. Currently in production.
F-30S
Four-cylinder horizontally opposed, two-stroke, aircraft engine with dual integral pumper carburetors. Produces  at 6200 rpm if free-air-cooled or  at 6,200 rpm if fan-cooled. It has a factory rated TBO of 1,000 hours. Currently in production.
F-30ES
Four-cylinder horizontally opposed, two-stroke, aircraft engine with fuel injection. Produces  at 6,200 rpm if free-air-cooled or  at 6,200 rpm if fan-cooled. It has a factory rated TBO of 1,000 hours. Currently in production.

Applications

Specifications (F-30ES)

See also

References

Hirth aircraft engines
Air-cooled aircraft piston engines
Two-stroke aircraft piston engines
Jaypee Group. Jaiprakash Associates Limited, commonly known as Jaypee Group, is an Indian conglomerate headquartered in Noida, Uttar Pradesh, with interests in engineering, construction, power, real estate, hospitality, IT, sports and education (non-profit).

Overview

Manoj Gaur is the elder son of Jaiprakash Gaur. He is the Chairman of the Jaiprakash Associates Limited. Jaypee has cement production and private sector hydropower company with 1,700 MW in operation. The Jaypee Group successfully completed projects in 18 states of India and Bhutan. Jaypee is the engineering and construction company for India's Yamuna Expressway, which opened 9 August 2012.

JIL, the group flagship, has an engineering and construction wing which mostly supports Jaypee projects. It also has the largest land bank in India's National Capital Region, i.e., New Delhi. Jaypee has two thermal power plants (Bina Thermal Power plant – 500 MW and Nigrie Thermal Power Plant – 2X660 MW).

History
Jaiprakash Gaur founded the conglomerate in 1979. After acquiring a Diploma in Civil Engineering in 1950 from the now called Indian Institute of Technology Roorkee (IITR) in Roorkee, Uttarakhand, he had a stint with the Government of Uttar Pradesh. Later he became an entrepreneur, starting as a civil contractor in 1958. 

 2014 - In August 2014, Shree Cements announced that it is set to acquire Jaiprakash Associates' 1.5 million tonne grinding unit at Panipat for 360 crore. The Jaypee group has been selling most of its cement assets to reduce its debt.
 2015 - In September 2015, JSW Energy acquired two hydropower Projects of Jaiprakash Associates in a deal worth   9,700 crore.
2017 - UltraTech Cement completed the Rs 16,189 crore acquisition of Jaiprakash Associates' six integrated cement plants and five grinding units, having a capacity of 21.2 million tonnes.
2019 - Commissioning of 720 MW Hydro project (having 114 M high concrete dam and underground powerhouse having 4x180 MW generators) for Mangdechhu Hydro Electric Power Project Authority in Bhutan.
2022 - Dalmia Bharat signed a binding agreement to acquire Jaiprakash Associates’ cement, clinker and power plants at an enterprise value of Rs 5,666 crore.

Controversies 

 In November 2017, the Supreme Court of India barred the directors from selling their personal assets.
 Due to debt, Jaiprakash Associates did not pay back its fixed deposit holders on time. The National Company Law Tribunal had extended the deadline to 31 March 2017 to settle the same.
 As of 2022, the company had attracted the notice of several US-based mutual funds and ETFs, who reported owning significant positions in the company. Investors in the company include Dimensional Fund Advisors and WisdomTree.

References

External links
 

 
Companies based in Noida
Companies listed on the Bombay Stock Exchange
Companies listed on the National Stock Exchange of India
Indian brands
Indian companies established in 1979
Conglomerate companies established in 1979
1979 establishments in Uttar Pradesh
ODROID. The ODROID is a series of single-board computers and tablet computers created by Hardkernel Co., Ltd., located in South Korea. Even though the name ODROID is a portmanteau of open + Android, the hardware is not actually open source because some parts of the design are retained by the company. Many ODROID systems are capable of running not only Android, but also regular Linux distributions.

Hardware 
Several models of ODROID's have been released by Hardkernel. The first generation was released in 2009, followed by higher specification models.

C models feature an Amlogic system on a chip (SoC), while XU models feature a Samsung Exynos SoC. Both include an ARM central processing unit (CPU) and an on chip graphics processing unit (GPU). CPU architectures include ARMv7-A and ARMv8-A, on board memory range from 1 GB RAM to 4 GiB RAM. Secure Digital SD cards are used to store the operating system and program memory in either the SDHC or MicroSDHC sizes. Most boards have between three and five mixed USB 2.0 or 3.0 slots, HDMI output, and a 3.5 mm jack. Lower level output is provided by a number of general-purpose input/output (GPIO) pins which support common protocols like I²C. Current models have an Gigabit Ethernet (8P8C) port and eMMC module socket.

Specifications

Software

Operating systems

References

External links 
 Official Hardkernel website
 ODROID official forum
 ODROID Wiki
 ODROID Magazine

Single-board computers
Android (operating system) devices
Handheld game consoles
Linux-based devices
Products introduced in 2009
Tablet computers
Thomas Whitney (computing). Whitney graduated from Aurelia High School in Aurelia, Iowa in 1957, and completed BS (1961), MS (1962) and PhD (1964) degrees in electrical engineering at Iowa State University, where he was a member of Acacia fraternity.

He joined Hewlett-Packard in 1967, where he helped develop the HP-35, the first handheld electronic scientific calculator, and was a lecturer at Santa Clara University.

He later joined Apple as employee 15, and in 1978 became executive vice president of engineering, working directly with Steve Jobs and Jef Raskin on the Macintosh project.

Whitney died in 1986 at age 47.

References

External links
 Stories about the Macintosh

American computer businesspeople
1986 deaths
1939 births