omniomni/omni-engineering huggingface dataset:
Pegasus Quik. The Pegasus Quik is a British-designed ultralight trike, originally designed and produced by Pegasus Aviation, later by P&M Aviation, both of the United Kingdom. The design is now owned by  Albatross Flying Systems of Bangalore, India. The aircraft is supplied as a kit for amateur construction.

Design and development
The Quik's design goal was to produce a faster trike and to this end a smaller wing in both span and area than normal is employed. The initial wing used has on a span of  and an area of . The smaller wing also gives improved turbulence resistance, but at the cost of a higher stall speed.

The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of  and is certified to the British BCAR Section "S" standard. The initial version has a maximum gross weight of , while later versions have gross weights of . The Quik features a cable-braced or strut-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit, tricycle landing gear and a single engine in pusher configuration.

The aircraft is made from bolted-together aluminium tubing, with its double-surface wing covered in Dacron sailcloth. On the initial model its  span wing is supported by a single tube-type kingpost and uses an "A" frame control bar. Later versions use a strut-braced "topless" style wing.

Variants

Quik 912S Executive
Version circa 2003 powered with a Rotax 912ULS engine of  and using a conventional cable-braced wing with a kingpost. Maximum gross weight of  and a cruise speed of .
Quik
2012 production version with Rotax 912ULS engine of , strut-braced "topless" wing, maximum gross weight of  and a cruise speed of .
QuikR
2012 production version, designed to be even faster with a  span, strut-braced "topless" wing of  wing area. Gross weight of , Rotax 912ULS engine of , topless wing and cruise speed of . Stall speed is .

Specifications (Quik 912S Executive)

References

External links

Pegasus Quik
2000s British ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
Ultralight trikes
Concept Prowler. The Concept Prowler is an American ultralight trike that was designed and produced by Concept Aviation of Knoxville, Tennessee.

Design and development
The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of . The aircraft has a standard empty weight of . It features a cable-braced hang glider-style high-wing, weight-shift controls, a single-seat, open cockpit, tricycle landing gear and a single engine in pusher configuration.

The Prowler's design goals included maximum cruise speed and to achieve this a wing of small area was selected. This results in an ultralight with a cruise speed of , at the expense of a stall speed of , the fastest stall speed permitted by FAR 103 category rules.

The aircraft is made from bolted-together aluminum tubing, with its double-surface wing covered in Dacron sailcloth. Its  area wing is supported by a single tube-type kingpost and uses an "A" frame control bar. The standard engines supplied was the  Rotax 447 twin cylinder, two-stroke, air-cooled, single ignition aircraft engine. A cockpit fairing and wheel pants were factory options.

Specifications (Powler)

References

External links
Photo of a Prowler in flight

1990s United States ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
Ultralight trikes
NEARnet. NEARnet (New England Academic and Research Network) was an innovative high-speed regional network for education, research and development, established in 1988 by a consortium led by Boston University, Harvard University, and  MIT. It was a precursor to the commercial internet, formed after DARPA announced plans to dismantle the ARPANET. ARPANET then accounted for 71 of the consortium's 258 host connections.

Special services and facilities, such as the Connection Machine, the Massachusetts Microelectronics Center, and library catalogs, were made available over NEARnet. By 1990, NEARnet had 40 members.

Technology

NEARnet was linked to NSFNet via the John von Neumann Center supercomputer center and extended its backbone using the world's first fixed wireless internet technology, then referred to as, "LAN extension over microwave". The tech was developed and provided by wireless pioneer and Cambridge neighbor, Microwave Bypass.

The microwave was a core technology, which met the highest internet speed of 10 Mbps and helped to fund the network by eliminating recurring transmission charges. It consisted of an analog 23GHz, licensed, point-to-point microwave link, modified for a 10MHz baseband carrier and mated to an 802.3 Ethernet transceiver/microwave interface ("EtherWave Transceiver"). The EtherWave then connected network segments and backbones through Cisco routers. Smaller, more remote NEARnet members joined the network through T1 leased lines.

On July 1, 1993, NEARnet operations were assumed by BBN Systems and Technologies under contract to MIT. BBN's Internet operations were eventually merged with GTE.

References

Further reading
 

History of the Internet
Boston University
Internet in the United States
Keeley Electronics. Keeley Electronics is an American manufacturer of effect units for electric guitars. The company, founded by Robert Keeley and operating from Oklahoma City, Oklahoma, started with the Keeley Compressor pedal along with modifications for effects by Boss and Ibanez.

History

After graduating in electrical engineering from the University of Oklahoma, Robert Keeley started his company from his home in Oklahoma City in 2001. He initially hoped to build guitar amplifiers (he tweaked his father's Peavey Deuce), but found the market "highly saturated and becoming more so every day". Instead, while teaching at a small technical college and employing "some of his best students", he rebuilt and modified old effects units, starting with a Ross compressor. The industry for makers of hand-built effects at the time had few major players (Keeley named Mike Piera of Analog Man and Mike Fuller from Fulltone as his only competitors), and his business soon took off, aided by a reputation for quality and customers such as Brad Paisley. Rebuilt versions of the Ibanez TS9 were used by Peter Frampton, Jon Herington and Ike Willis; Keeley said he got his ideas for improving and tweaking existing effect pedals by reading commentary on various forums for guitar players. Since then, he develops his own pedals, starting with a boost pedal; his most popular effect is a compressor (first built in 2001), selling more than 27,000 copies.

According to Guitar World, Keeley Electronics has grown into "one of the world’s top sellers of guitar effects pedals". Keeley claims that part of his success is due to carefully selecting electronic components with low tolerance. They opened up a second factory, where they make flight cases and guitar pickups; in 2009, the company briefly moved production of effect pedals there after a fire in the first factory.

Keeley still builds custom-ordered and modified effects; assignments include tweaking an MXR Phase 90 for Donald Fagen and building a combined distortion/blues driver/wah for Neil Zaza.

Notable products

Compressor
Dark Side, a multi-effect unit inspired by the work of David Gilmour and Pink Floyd.
Framptone, an amplifier switcher and talk box developed in cooperation with Peter Frampton
Fuzz Head, a fuzzbox
Katana Clean Boost, Keeley's first self-made pedal, is a pre-amplifier used by Billy Gibbons and Dan Spitz
Loomer, containing fuzz and reverb in one pedal. Its name and design were influenced by a song by the shoegaze band My Bloody Valentine
Luna Overdrive, containing a Baxandall tone circuit, an op-amp, and a JFET circuit "voiced like a Fender or Marshall preamplifier circuit"
Phaser, a digitally controlled six-stage analog Phaser

Modifications
Boss BD-2 Blues Driver
Ibanez Tube Screamer
Mello Wah, modification to Dunlop Cry Baby

References

External links

Guitar effects manufacturing companies
Companies based in Oklahoma City
American companies established in 2001
Cierva W.5. The Cierva W.5 was a helicopter developed by the Cierva Autogiro Company in the United Kingdom. It was a single seater twin rotor helicopter- the rotors were mounted side-by-side on outriggers- with a wooden frame. It was powered by a 50 hp 4-cylinder air-cooled Weir engine. Its first flight was at Dalrymple, Ayrshire, on 7 June 1938, and it is considered to have been the world's second fully practical helicopter.

Pitch and Yaw control was achieved by tilting the rotor disks, roll control by differential pitch input to the rotors. Rotor thrust was controlled directly by the motor speed, which damped the response heavily.

References

 Reference to the W.5 in the history of British research and developments in the Helicopter field on the website by Vic Flintham

British helicopters
Aircraft first flown in 1938
Transverse rotor helicopters
Single-engined piston helicopters
Cierva aircraft
1930s British helicopters
Donald Sandys Wunsch. Donald Frederick Sandys Wunsch  (16 January 1887 – 23 August 1973) was a notable New Zealand chemical engineer and factory manager. He was born in Manchester, England, in 1887.

In the 1957 New Year Honours, he was appointed an Officer of the Order of the British Empire, in recognition of his role as chairman of the Advisory Council of Scientific and Industrial Research.

In 2010, IChemE in New Zealand instituted the annual Kennedy-Wunsch lecture, in recognition of the pioneering roles that both Wunsch and Miles Kennedy played in the development of chemical engineering in New Zealand.

References

1887 births
1973 deaths
New Zealand chemists
English emigrants to New Zealand
20th-century New Zealand businesspeople
New Zealand chemical engineers
New Zealand Officers of the Order of the British Empire
Engineers from Manchester
Tixel. A tactile pixel or tixel is the smallest measuring/transmitting element of a tactile matrix. Is a part of haptic technologies.

Design of a tactile pixel consists of a switching transistor and a resistive touch sensor. The electrical connection to the transistors is provided through high-resolution vias.

Tactile matrix 
Tactile matrix is a machine-readable system, which provides reading information from its surface, and then later transmitting it to a receiver (exoskeleton interface, tactile capturing software etc.).

Types of tactile pixels 
Temperature tactile pixels - transmit the effect of temperature on the receiver. When transmitting a matrix of proportional temperature sensors (tactile temperature matrix) is used.

Pressure tactile pixels (pressure capturing tixels) - transmit the level of pressure on the receiver. When transmitting a force sensor matrix is used.

When a pressure capturing pixel is being used in a exoskeleton-type technology where a signal is being transmitted on a human skin, tactile pixel provides a “feeling of gliding over material” (in case if the delay between transmitting signals isn’t longer than an average human brain frequency of receiving information from the outer source).

Usages of tactile pixels 

Tactile pixels have a wide range of possible usages. As for right now most common fields for them are VR/AR studies (simulating surfaces for gaming) and medicine (laparoscopy, supporting system for blind people). But as it’s a fairly new study, those examples of course do not cover the full potential of this technology.

E-sense 
In 2011 Swedish company Senseg announced their new technology E-sense. E-sense was supposed to be ready to recreate the feeling of wide range of textures on haptic devices. It used to generate an electric field several millimeters above a devices surface.

The company planned to use tixel technology in a mobile phone production, to more accurately replicate the feeling of a real keyboard and so on. The company also stated that it has the potential to develop in video game industry. As it will make possible to develop games based on feel rather than visuals.

See also 

 Computer-mediated reality
 Augmented reality 
 Virtual reality 
 Haptic technologies 
 Exoskeleton

References

Haptic technology
PureCell System. The PureCell System is a stationary phosphoric acid fuel cell designed, manufactured and marketed by Doosan Fuel Cell America (formerly ClearEdge Power/UTC Power) of South Windsor, Connecticut. Designed for distributed generation and micro combined heat and power applications, it is intended for industrial buildings such as hotels, hospitals, data centers, supermarkets, and educational institutions. PureCell System says that its users will see lower energy costs, reduced emissions, 95% system efficiency, 10-year cell stack durability and 20-year product life.

It uses a combustion-free process with natural gas and converts heat exhaust into cooling and heating, turning potential waste into useful energy.

Installations
On August 17, 2011, it was announced that the PureCell Model 400 system fleet had reached 200,000 hours of field operation. In September 2013, ClearEdge Power announced that its 400-kW stationary fuel cell surpassed 1,000,000 hours of field operation. Today, PureCell Model 400 system fleet has over 12 million hours of field operation. 

ClearEdge Power’s chief operating officer Joe Triompo said that PureCell System repeat customers include The Coca-Cola Company, Cox Communications, and Whole Foods Market.

Other customers include First National Bank of Omaha, Price Chopper Supermarkets, 4 Times Square, Shaw's, GS Power Co./Samsung,  St. Helena Hospital, the World Trade Center, The Octagon, New Haven City Hall, South Windsor High School, 360 State Street, Albertsons, the University of Connecticut Diversey, Inc., and Eastern Connecticut State University.

References

External links
 http://www.clearcellpower.com
 http://www.clearedgepower.com/
 http://www.linkedin.com/company/clearedge-power
 https://twitter.com/ClearEdgePower
 https://www.facebook.com/clearedgepower
 https://www.youtube.com/user/clearedgepower

Fuel cells
LinkCycle. LinkCycle is an American technology company that offers energy management software to manufacturing companies. LinkCycle uses data analysis techniques on available data streams to determine the energy usage for the production lines and machinery in a manufacturing facility. This "virtual audit" technique is a substitute for current time-consuming, manual techniques that give energy managers visibility into significant energy uses: (1) electricity meter devices and (2) energy audits.  In 2013, LinkCycle participated in the Boston chapter of TechStars, a startup accelerator, and has been recognized by several publications for its potential to make energy management affordable and expedient for large manufacturers.

LinkCycle is currently based in Boston, Massachusetts, United States.

Awards and endorsements

Prior to TechStars, the company received initial seed funding for its performance in three business plan competitions sponsored by MIT:
2011 LinkedData Prize, MIT 100k Entrepreneurship Competition (co-winner with two other companies) 
2011 Deployment Category Winner, MIT Clean Energy Prize 
2011 MIT Global Challenge Development Grant, MIT Global Challenge 
The company has received endorsement from Tim Berners-Lee, who judged the 2011 LinkedData Prize competition and is a leading advocate of linked data applications.  The U.S. Department of Energy, which sponsored the MIT Clean Energy Prize, said the start-up displayed a “combination of technical prowess and passion for problem-solving.”

References

External links
LinkCycle:

Environmental organizations based in Massachusetts
American companies established in 2010
Organizations based in San Francisco
Organizations based in Cambridge, Massachusetts
2010 establishments in Massachusetts
Fairchild 228. The Fairchild 228 was a regional jet developed for the United States market by Fairchild Hiller using Fokker F28 sub-assemblies.

Design and development
In 1967 Fairchild-Hiller sought to develop their own regional jet, the FH-327. Fairchild elected to leverage their relationship with Fokker aircraft in building F.27 aircraft, with a similar arrangement. The plan was to purchase sub-assemblies for the then new F.28 regional jet and assemble them in America into a shortened configuration aircraft with different engines.

The Fairchild 228 was to be a 50-passenger twin-engine turbofan regional aircraft. The engines were mounted on the rear of the fuselage, with a swept T-tail arrangement. The wings were equipped with triple-slotted flaps for short-field operations. A new  thrust Rolls-Royce RB.203 Trent turbofan was selected to power the aircraft.

Fairchild estimated orders of 260-460 aircraft for the US market and 600-800 Internationally. The first sub-assemblies were shipped to Hagerstown, Maryland in 1967 with two prototype aircraft assembled for testing. The first order was placed by West Coast Airlines of Seattle, Washington. Tests of the F.28 aircraft's short field performance was better than expected with simpler flap construction. The Trent engines performance uncertainty and delayed certification of the 228 compared to the F.28 led to the 1968 announcement that the project would be halted. Fairchild wrote off nearly $30 million in expenses in 1968 relating to canceling the F-228 program. The losses contributed to Fairchild's canceled plan to acquire Douglas aircraft. The tail sections were shipped back to Fokker and used in production F.28 aircraft.

Specifications (228)

References

Fairchild aircraft
1960s United States airliners
Low-wing aircraft
Twinjets
Aircraft with retractable tricycle landing gear
Abandoned civil aircraft projects of the United States
Death By Cube. is a twin-stick shooter released on the Xbox Live Arcade service on January 20, 2010. It was developed by Premium Agency and published by Square Enix.

Gameplay
The game uses a top-down visual scheme. Players assume control over the amnesiac robot Leo, controlling his movement using the left thumb stick and aiming and firing using the right thumb stick. Additionally, a dash move can be executed using the left trigger and a shield can be deployed using the right trigger. The player must eliminate all of the enemies on the map, many of which are cube shaped, while avoiding getting hit by projectiles fired by the enemies. Enemies that are killed explode into large gushes of blood-like red oil. Some levels have additional objectives, such as defending a base or surviving with only one life. Players acquire computer chips, the form of in-game currency, by performing well enough in a level to receive a bronze, silver, or gold rating. Chips are spent on upgrades to Leo or to unlock additional levels.

Development
Yosuke Shiokawa cited Heavy Weapon as an inspiration for the game. The team was not big enough to release the game on multiple platforms. This, combined with the facts that the team did not have market information on either the PlayStation Network or Wiiware, led to the decision to make the title an Xbox Live Arcade exclusive. The title was created by Square's western branch, as the title was designed with a western audience in mind. According to Shiokawa the final title was "born jokingly" although Shiokawa has admitted to not seeing the humor in it.

Reception

Prior to its release, Death By Cube was set up for demo play at the Square Enix booth of the 2009 Tokyo Game Show, where several reviewers commented on the game as being exceptionally bloody. Kotaku Australias Stephen Totilo praised the game for requiring more strategy than other twin stick shooters, and remarked that "This little game might well have been the bloodiest game at the Tokyo Game Show".

Death By Cube received "mixed" reviews according to the review aggregation website Metacritic. Critics took issues with multiple aspects of the game, including wildly fluctuating difficulty levels, a threadbare plot, poor visuals, and that additional levels had to be unlocked by grinding through the initial levels. Brett Todd of GameSpot summarized the game by saying that "While the action can be gratifyingly frenetic for a few minutes here and there, the overall game design is simplistic and repetitive, the varying difficulty is incredibly frustrating, and the look and sound of the game are too primitive to hold your attention for long."

Since its release, the game sold 10,020 units worldwide by January 2011. Sales of the game moved up to 12,131 units by the end of 2011.

References

External links
 

2010 video games
Single-player video games
Square Enix games
Twin-stick shooters
Video games developed in Japan
Xbox 360 games
Xbox 360 Live Arcade games
Xbox 360-only games
2-Furonitrile. 2-Furonitrile is a colorless derivative of furan possessing a nitrile group.

Synthesis 
Industrial synthesis is based on the vapor phase ammoxidation of furfural with ammonia over bismuth molybdate catalyst at 440-480 °C.

Numerous laboratory methods also exist; for the instance oxidative dehydration of furfural with ammonia salts using hypervalent iodine reagents or n-bromosuccinimide. From furfural aldoxime (with thionyl chloride-benzotriazole, triphenylphosphine-iodine reagents, or heating in DMSO) and furoic acid amide (flash vacuum pyrolysis).

Applications 
2-Furonitrile currently has no major applications but it is used as an intermediate in pharmaceutical and fine chemical synthesis. It has been suggested as a potential sweetening agent, as it has about 30 times the sweetening power of sucrose.

References 

2-Furyl compounds
Nitriles
Sugar substitutes