omniomni/omni-engineering huggingface dataset:
William F. Roe. William F. Roe (1904-1982) was an electrical engineer who led the rural electrification scheme in Ireland.

Early life and education
He was born at 25 Patrick Street, Kilkenny, Ireland, only son of William and Mary Roe (née Duggan). Educated at home until aged nine, he then went to Christian Brothers School, Kilkenny, and later to University College Dublin and the Royal College of Science for Ireland.

He graduated from UCD in 1924, BEng Civil Engineering and from UCD and the College of Science in 1925, BEng Mechanical and Electrical Engineering, and ARCScI in each case with first class honours.

Career
Roe joined the electricity department of Dublin Corporation, moving the following year to the Shannon Power Development Board and in 1928 he transferred to the newly formed Electricity Supply Board (ESB).

Roe's early career in the ESB saw him as District Engineer in Portlaoise, Waterford and Cork City. When the Rural Electrification Scheme was initiated in 1945, the experience Roe became the first Engineer-in-Charge. In 1950, he was appointed Assistant Chief Engineer of the ESB and in 1965 Deputy Chief Engineer, all the time keeping his finger on the pulse of the Rural Scheme.

He was also the Chairman of the Industrial Engineering Co. (Dundalk), and of its four subsidiaries. Roe was undoubtedly the best-known ESB Engineer in Ireland.

He was also a founding member of Cumann na n'Innealtóiri (The Engineers Association), serving for a number of years on its council, also on the Council of the Institution of Civil Engineers of Ireland, both of which merged in 1969 and became the Institution of Engineers of Ireland. He also served on the council of the early Irish Management Institute. He was the first Chairman of the Irish Branch, Institute of Electrical Engineers (now the IET).

He served for a long number of years on the National Executive of Muintir na Tíre. His leadership (spurred by commitment to social justice) and his inspired management skills ensured the success of the rural electrification scheme that made such a dramatic impact on rural life in Ireland.

(Biography to be published by Royal Irish Academy)

A plaque commemorating his contributions is on display at his birthplace in Patrick Street, Kilkenny.

References

Print
Michael. J. Shiel. The Quiet Revolution: The Electrification of Rural Ireland, 1946-1976 (O'Brien Press; 3Rev Ed edition January 2003) 
Douglas F. Barnes. "The Challenge of Rural Electrification: Strategies for Developing Countries" (RFF Press 2007)

Online
 ESB Electric Mail
 Ask About Ireland - Irish Scientists
 RTÉ Radio programme "The story of how Ireland became electric" broadcast in 1977 (podcast)

Irish electrical engineers
1904 births
1982 deaths
20th-century Irish engineers
People from Kilkenny (city)
Engineers from County Kilkenny
Super Robot Mach Baron. is a Japanese tokusatsu series that aired from October 7, 1974, to March 31, 1975. It was a sequel to Super Robot Red Baron.

In Taiwan, the series was adapted into an 86-minute feature film called "The Iron Superman" which used footage from the original series as well as new footage of Hong Kong actors replacing the original Japanese cast not unlike Mighty Morphin' Power Rangers. That movie was also released in Spain (under the title "Mazinger Z - El robot de las estrellas", even though it bore no relation to Mazinger Z) and Germany ("Roboter der Sterne").

Episodes

 Sortie to Mach Baron Akatsuki
 Fang of the Sky Trap of the Sea
 Mach Baron Robbery Plan
 Kiss Submarine Base Bombing Order
 Bet on that Moment!
 Tokyo Bombing 5 Hours
 10 Seconds of Decision!
 Horrible Suicide Squad
 Glass Super Robot 
 Illusion of Giant Baron
 Betrayal Senjogahara
 Invincible Chogokin Robot
 The Terrifying UFO Identity
 Mach Colleder Dedicated to a Friend
 Shiver! Sniper Q
 Finger Man Sea
 Desperate Despair! Matchbox Strategy
 The Great Invention of Invention Criminals
 Angel from Hell
 Operation Troy 1 to 1
 Take the Route South-Southwest
 Chase! Phoenix Mystery
 Lullar Angry Hell Operation
 Hydrogen Bomb Limited 900KM
 Trump is Pile X
 Mach Baron's Super Secret

References
Super Robot Mach Baron at Japan Hero

External links 
 

1974 Japanese television series debuts
1975 Japanese television series endings
Nippon Television original programming
Tokusatsu television series
USS Affray (MSO-511). USS Affray (AM-511/MSO-511) was an Acme-class minesweeper acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent the safe passage of ships.

The second ship to be named Affray by the Navy was laid down on 24 August 1955 at Boothbay Harbor, Maine, by Frank L. Sample, Jr., Inc.; launched on 18 December 1956; sponsored by Mrs. John A. Click; and commissioned on 8 December 1958.

East Coast operations 

After fitting out, Affray devoted the first six months of 1959 to shakedown and type training. At the end of June, she entered the Charleston Naval Shipyard for post-shakedown overhaul. Complicated by the addition of modernization alterations, the repair period lasted into 1960.

North Atlantic/European operations 

After completing final acceptance trials, the minesweeper joined the Atlantic Fleet Mine Force and, for almost a decade, alternated between deployments to the Mediterranean with the U.S. 6th Fleet, extended tours of duty in the West Indies, and a variety of assignments out of her home port. Her duties during cruises to the Mediterranean and the West Indies consisted mainly of exercises and goodwill visits to various ports. Her operations out of Charleston took a number of forms. In October 1962, Affray provided support for a Project Mercury space shot. Later in 1966, she participated in a succession of tests for such organizations as the Bureau of Ships, the Mine Warfare School, the David Taylor Model Basin, and the Naval Ordnance Laboratory Test Facility.

Training ship assignments 

At the end of October 1969, the minesweeper concluded her final deployment to the Mediterranean Sea. Assignments in the West Indies, however, remained an important feature on her agenda as did support services for the Mine Warfare School and for Navy research and development activities. In 1973, Affray's assignment was changed significantly. On 1 July, she received orders reassigning her to naval reserve training duty. On 1 October, the warship reported for duty at her new home port -- Portland, Maine. There she served as a drill platform for naval reservists. In addition, she  continued to participate in major exercises emphasizing minesweeping and amphibious warfare. On 1 October 1981, after being based eight years at Portland, Affray was reassigned to Newport, Rhode Island. As of the end of 1986, she was training naval reservists from her base at Newport.

Decommissioning 

Affray was decommissioned on 20 December 1992 and struck from the Navy list on 28 June 1993. She was sold in the year 2000 for scrapping.

References

External links 
 NavSource Online: Mine Warfare Vessel Photo Archive - Affray (MSO-511)

Acme-class minesweepers
Ships built in Boothbay Harbor, Maine
1956 ships
Vietnam War mine warfare vessels of the United States
Shiraz Shivji. Shiraz Shivji (born 1947 in what is now Tanzania) was the primary designer of the Atari ST computer for Atari Corporation, which was developed in five months and released in 1985, and one of the engineers who developed the Commodore 64.

Biography
Shiraz Shivji, born 1947 in what is now Tanzania, was of Indian Ismaili heritage.

Commodore 
Shivji began work at Silicon Valley, and found work at Commodore International, where he was one of the engineers that helped build the Commodore 64. By 1984, he had been promoted to being the director of engineering at Commodore. 

In 1984, Shivji was involved in a scandal related to his work on the Commodore 900. He was one of three systems engineers on the project since its inception in 1983. He was sued by Commodore in mid-July 1984 for disclosing confidential research information connected to this project and disk drive design plans as he was beginning to transfer to Atari Corporation with Jack Tramiel. He was acquitted of all charges in court alongside several other engineers.

Atari Corporation 
When Jack Tramiel took over Atari in 1984, with a number of Commodore engineers, the company was in bad shape, and Shivji's proposed cheap, powerful home computer, codenamed 'Rock Bottom Price,' was seen as a solution to financial woes. While working for the newly founded Atari Corporation, Shivji was the primary designer of the Atari ST computer, among other projects.

Shivji became Atari's Vice President of Research and Development, and led a team of six engineers who designed the Atari 520ST computer. This work was completed in five months (July to December 1984). 

Shivji later led the design of the Atari TT before leaving Atari in 1990.

Post-Atari 
Kamran Elahian recruited Shivji for his 1989 startup company, Momenta. While there Shivji designed the Momenta Pen Computer, an early pentop computer and one of the first full sized tablet computers.

Shivji received seven patents between the years of 2000 and 2007.

References

External links
 Father of the ST
 A tribute to the ST
List of patents filed

1947 births
20th-century American engineers
20th-century Indian engineers
Alumni of the University of Southampton
American electrical engineers
Atari people
Commodore people
Indian Ismailis
American Ismailis
Tanzanian Ismailis
Indian electrical engineers
Indian emigrants to the United States
Living people
Stanford University alumni
Tanzanian emigrants to the United States
Tanzanian engineers
Tanzanian people of Indian descent
Bell Laboratories Layered Space-Time. Bell Laboratories Layer Space-Time (BLAST) is a transceiver architecture for offering spatial multiplexing over multiple-antenna wireless communication systems. Such systems have multiple antennas at both the transmitter and the receiver in an effort to exploit the many different paths between the two in a highly-scattering wireless environment. BLAST was developed by Gerard Foschini at Lucent Technologies' Bell Laboratories (now Nokia Bell Labs). By careful allocation of the data to be transmitted to the transmitting antennas, multiple data streams can be transmitted simultaneously within a single frequency band — the data capacity of the system then grows directly in line with the number of antennas (subject to certain assumptions). This represents a significant advance on current, single-antenna systems.

V-BLAST

V-BLAST (Vertical-Bell Laboratories Layered Space-Time) is a detection algorithm to the receipt of multi-antenna MIMO systems. Available for the first time in 1996 at Bell Laboratories in New Jersey in the United States by Gerard J. Foschini. He proceeded simply to eliminate interference caused successively issuers.

Its principle is quite simple: to make a first detection of the most powerful signal. It regenerates the received signal from this user from this decision. Then, the signal is regenerated subtracted from the received signal and, with this new signal, it proceeds to the detection of the second user's most powerful, since it has already cleared the first and so forth. What gives a vector containing received less interference.

The complete detection algorithm can be summarized as recursive as follows:

Initialize:

Recursive:

See also
Space–time code — a means for using multiple antennas to improve reliability rather than data-rate.
Telecommunication

References

Further reading

External links
 http://www.alcatel-lucent.com/wps/portal/BellLabs

Antennas
Detection theory
CZAW Mermaid. The CZAW Mermaid is an amphibious flying boat light-sport aircraft produced by Czech Sport Aircraft in the Czech Republic.

Design and development
The Mermaid has a composite hull and aluminum wings, with pusher configuration engine and a cruciform tail. Its  span mid-wing has an area of  and is equipped with flaps. The standard engine is the  Jabiru 3300 four-stroke powerplant.

By December 2012 the aircraft was no longer offered for sale by CSA.

Specifications (CZAW Mermaid)

References

2000s Czech sport aircraft
Light-sport aircraft
Flying boats
Single-engined pusher aircraft
Mermaid
Ai Senshi Nicol. is a 1987 action-adventure game by Konami for the Family Computer Disk System. It was only released in Japan.

Plot
Nicol, a 14-year-old genius inventor and his girlfriend Stella manage to invent a dimensional space transporting device, but their research attracts the attention of Gyumao (Cow Demon), a ruthless dictator of a military empire with plans for space conquest. The Demon offers to buy the device from the couple and act out his nefarious plans. Wanting to preserve the peace of his world, Nicol turns down the offer, denying Gyumao the means to accomplish his goal. The Demon, furious, dispatches his soldiers to kidnap Stella and steal the device from Nicol's laboratory. The soldiers ambush Nicol and Stella during a date, overpowering Nicol and carrying off his girlfriend. Defeated, Nicol returns to his laboratory only to find the device gone. Fortunately, the transporter was not yet complete, lacking a vital part which was still in Nicol's possession. Gyumao hopes to exchange Stella with the indispensable part he needs, but Nicol has other plans in mind. Against Gyumao's orders, he travels to Gyumao's Dairasu star system to free his lover himself. A disapproving Gyumao shatters the device into pieces and scatters those fragments across seven locations. Nicol must then travel across Dairasu, collect the fragments, repair the transporter, and liberate his girlfriend.

References

External links
 Game info from Atari HQ
 

1987 video games
Action-adventure games
Famicom Disk System games
Japan-exclusive video games
Konami games
Single-player video games
Video games developed in Japan
Cheoah Dam. 

The Cheoah Dam is a hydroelectric dam located in Graham and Swain counties, North Carolina, on the Little Tennessee River between river miles 51 and 52. The Cheoah Development consists of a dam and powerhouse, the  first of several constructed by the Tallassee Power Company (now Tapoco), a subsidiary of Aluminum Company of America (now Alcoa), in order to generate electricity to smelt aluminum in Alcoa, Tennessee.

The Cheoah project began in 1916 as a construction camp at the Narrows, where the Little Tennessee River flowed through a narrow gorge, and it was completed in 1919. Cheoah Dam created the long, narrow Cheoah Reservoir, which covers approximately  of the normal full pool area and a drainage area of . The elevation of Cheoah Reservoir is  (USGS). A scenic highway runs the length of the reservoir.

The water inflow for Cheoah, like that of Calderwood and Chilhowee, is primarily dependent on releases from TVA's Fontana Dam, the primary flow control facility for the lower Little Tennessee River. Tapoco operated the Cheoah Development until 2012, when it was sold to Brookfield Renewable Energy Partners, forming Brookfield Smoky Mountain Hydropower.

When completed in 1919, the  dam was the world's highest overflow dam. The turbines were the largest in the world, and the 150,000-volt transmission line had the highest voltage and the longest span for a transmission line— across the river below Cheoah Dam. The dam and associated structures were listed on the National Register of Historic Places in 2004.

The dam was used as a filming location for the 1993 movie The Fugitive, starring Harrison Ford and Tommy Lee Jones.

Gallery

See also

 National Register of Historic Places listings in Graham County, North Carolina

References

External links

 "Cheoah Dam," TVA website
  "Brookfield Renewable Energy Partners - Cheoah

Dams on the Little Tennessee River
Dams in North Carolina
Hydroelectric power plants in North Carolina
Buildings and structures in Graham County, North Carolina
Buildings and structures in Swain County, North Carolina
Alcoa Power Generating dams
Dams completed in 1919
Energy infrastructure completed in 1919
Industrial buildings and structures on the National Register of Historic Places in North Carolina
Dams on the National Register of Historic Places in North Carolina
National Register of Historic Places in Graham County, North Carolina
National Register of Historic Places in Swain County, North Carolina
Historic districts on the National Register of Historic Places in North Carolina
1919 establishments in North Carolina
Pacific Power (Australia). Pacific Power was the state owned monopoly power generator in the state of New South Wales, Australia. The corporation was formed from the New South Wales Electricity Commission in 1995. It was broken up into TransGrid, Delta Electricity, Eraring Energy and Macquarie Generation in between 1995 and 2003. The consultancy division, Pacific Power International was acquired by Connell Wagner at the same time.

Electricity Commission of New South Wales
The Electricity Commission of New South Wales, sometimes called Elcom, was a statutory body responsible for the generation of electricity and its bulk transmission throughout New South Wales, Australia.  The Commission was established on 22 May 1950 by the Electricity Commission Act 1950 and its role was to take over power generation responsibility from the County Councils (such as the Sydney County Council) and the railways, who until that time were responsible for power generation and distribution. It acquired the power stations and main transmission lines of the four major supply authorities (Southern Electricity Supply, Sydney County Council, the Department of Railways and the Electric Light and Power Supply Corporation Ltd, known as the Balmain Company). The commission was responsible for the centralised co-ordination of the states electricity generation and supply.

Between 1950 and 1960 the commission more than trebled power capacity, from 490 megawatts to 1800.  At first, this involved completing the expansions of Bunnerong, White Bay, Balmain, and Pyrmont, and completing new stations already designed by the Department of Railways: Tallawarra near Port Kembla (1954), Wangi, at Lake Macquarie (1956), and Wallerawang, near Lithgow (1957).

Electricity Commission of New South Wales Trading as Pacific Power
The Electricity Commission adopted the trading name Pacific Power in 1992.

Pacific Power
The corporation was formed from the New South Wales Electricity Commission in 1995.

In the early 1990s, Australian state governments began to deregulate state owned monopoly electricity commissions in order to promote competition, customer choice and potentially cheaper electricity. In 1995, the transmission assets were split off into a new organisation called Transgrid. In 1996, two new entities were split off - Delta Electricity and Macquarie Generation. In 2000, the remaining power stations were transferred to a new entity, Eraring Energy, and the consulting business sold to Connell Wagner.

Pacific Power was then closed in 2003.

References

Defunct government-owned companies of Australia
Government-owned companies of New South Wales
Defunct utility companies of New South Wales
Defunct electric power companies of Australia
Australian companies established in 1995
Energy companies established in 1995
Australian companies disestablished in 2003
Energy companies disestablished in 2003
Generalized forces. In analytical mechanics (particularly Lagrangian mechanics), generalized forces are conjugate to generalized coordinates.  They are obtained from the applied forces , acting on a system that has its configuration defined in terms of generalized coordinates.  In the formulation of virtual work, each generalized force is the coefficient of the variation of a generalized coordinate.

Virtual work
Generalized forces can be obtained from the computation of the virtual work, , of the applied forces.

The virtual work of the forces, , acting on the particles , is given by

where  is the virtual displacement of the particle .

Generalized coordinates
Let the position vectors of each of the particles, , be a function of the generalized coordinates, .  Then the virtual displacements  are given by

where  is the virtual displacement of the generalized coordinate .  

The virtual work for the system of particles becomes

Collect the coefficients of  so that

Generalized forces
The virtual work of a system of particles can be written in the form

where

are called the generalized forces associated with the generalized coordinates .

Velocity formulation
In the application of the principle of virtual work it is often convenient to obtain virtual displacements from the velocities of the system.  For the n particle system, let the velocity of each particle Pi be , then the virtual displacement  can also be written in the form

This means that the generalized force, , can also be determined as

D'Alembert's principle
D'Alembert formulated the dynamics of a particle as the equilibrium of the applied forces with an inertia force (apparent force), called D'Alembert's principle.  The inertia force of a particle, , of mass  is

where  is the acceleration of the particle.

If the configuration of the particle system depends on the generalized coordinates , then the generalized inertia force is given by

D'Alembert's form of the principle of virtual work yields

See also
Lagrangian mechanics
Generalized coordinates
Degrees of freedom (physics and chemistry)
Virtual work

References

Mechanical quantities
Classical mechanics
Lagrangian mechanics