omniomni/omni-engineering huggingface dataset:
John Iacono. John Iacono is an American computer scientist specializing in data structures, algorithms and computational geometry. He is one of the inventors of the tango tree, the first known competitive binary search tree data structure.

Iacono obtained his M.S. at Stevens Institute of Technology and his Ph.D.  in 2001 at Rutgers, the State University of New Jersey under the supervision of Michael Fredman. He is a Sloan Research Fellow and Fulbright Scholar. Formerly a professor of computer science in the New York University Tandon School of Engineering, he now works as a professor at the Université libre de Bruxelles.

References

External links 
 Personal web page

American computer scientists
People from Livingston, New Jersey
Rutgers University alumni
Stevens Institute of Technology alumni
Researchers in geometric algorithms
Living people
Year of birth missing (living people)
Polytechnic Institute of New York University faculty
Academic staff of the Université libre de Bruxelles
Sloan Research Fellows
Calxeda. Calxeda (previously known as Smooth-Stone) was a company that aimed to provide computers based on the ARM architecture for server computers. It operated from 2008 through 2013.

Calxeda claimed reduced energy consumption as well as better cost per throughput, compared to x86-based server manufacturers. 
They competed in the many-core server market against Intel and AMD, other recent ARM-based server vendors such as Marvell Technology Group (the Armada XP product), and the multi-core processor manufacturer Tilera.

History 
In March 2011 Calxeda announced a 480-core server in development, consisting of 120 quad-core ARM Cortex-A9 CPUs.

In November 2011 Calxeda announced the EnergyCore ECX-1000, featuring four 32-bit ARMv7 Cortex-A9 CPU cores operating at 1.1–1.4 GHz, 32 KB L1 I-cache and 32 KB L1 D-cache per core, 4 MB shared L2 cache, 1.5 W per processor, 5 W per server node including 4 GB of DDR3 DRAM, 0.5 W when idle.
Each chip included five 10 Gigabit Ethernet ports. Four chips are carried on each EnergyCard.

The UK-headquartered company Boston Limited announced in 2011 appliances based on the Calxeda EnergyCore system on a chip products. Boston's appliances, marketed under the Viridis brand, were demonstrated in November 2012.
Hewlett-Packard used Calxeda products for a server product known as Moonshot in November 2011, named after the Redstone rocket.

On December 19, 2013, Calxeda was reported to be restructuring, widely referred to as shutting down its operation due to running out of the capital venture funding, after failing to secure the deal with Hewlett-Packard.

In December 2014 the intellectual property developed by Calxeda re-emerged with a company called Silver Lining Systems (SLS).

References

External links 
 Calxeda web site (last copy archived by WayBack Machine)
 Silver Lining Systems (SLS), the new company that is leveraging the intellectual property developed by Calxeda

2008 establishments in Texas
2013 disestablishments in Texas
ARM architecture
Computer companies established in 2008
Computer companies established in 2013
Defunct computer companies of the United States
Defunct computer hardware companies
Electronics companies disestablished in 2013
Electronics companies established in 2008
Manufacturing companies based in Austin, Texas
Manycore processors
Plunger (disambiguation). A plunger is a device that is used to release stoppages in plumbing.

Plunger may also refer to:

 Plunger or blasting machine, used to detonate explosives

Science and technology 
 Plunger (hydraulics), a cylindrical piston-like component whose length is larger than its diameter
 Plunger, a component of a syringe (though in modern syringes, it is actually a piston)
 Plunger pump, type of positive displacement pump with stationary seal and a smooth cylindrical plunger, suitable for higher pressures
 Plunger suspension, used on motorcycles before and immediately after World War II
 Plunger brake or spoon brake, probably the first type of bicycle brake
 Plunger lift, a natural gas well deliquification techniques
 Plunger mute, the rubber part of a plumbing plunger, or a similar device, used as a musical mute
 Spring plunger, spring-loaded device for indexing, locating, positioning or locking components against a tip, pin, or ball using spring force
 Plunger (pinball), a spring-loaded rod used to launch balls in pinball

Military 
 USS Plunger, four United States Navy submarines
 Plunger-class submarine, an early class of United States Navy submarines
 The Plungers, an obsolete nickname for the Household Cavalry

Popular culture 
 The Plunger, a 1920 American film

See also
 French press or coffee plunger, a simple coffee brewing device
 Plunge (disambiguation)
Maghreb Virtual Science Library. The Maghreb Virtual Science Library (MVSL) (la Bibliothèque numérique des sciences du Maghreb  المكتبة العلمية الافتراضية المغاربية )  provided full-text access to thousands of science and engineering journals and databases to researchers in the Maghreb via digital library portals. It was a project funded by the U.S. Department of State Bureau of Oceans & International Environmental and Scientific Affairs, and is implemented by CRDF Global along with IMIST (Institut Marocain de l'Information Scientifique et Technique), LibHub, Research4Life, and JSTOR.

The Maghreb Virtual Science Library program is an initiative of CRDF Global.

Description
The Maghreb Virtual Science Library (MVSL) Program provides full-text access to thousands of science and engineering journals and databases to researchers in the Maghreb, improves the international dissemination of research from the region, and supports new online tools for discovering and working with collaborators in the Maghreb. The most visible parts of the MVSL Program are the MVSL [maghrebvsl.org website] and the national portals where each country’s full text journal articles can be comprehensively searched and accessed. Behind the scenes, the MVSL program includes consultations and workshops involving all of the implementing partners to assure that the users are supported to get the most from the system and to assure that the web-based systems are operating smoothly.

Countries
Although the MVSL Program is initially working with Morocco, Algeria, and Tunisia, the Program will expand to include Mauritania, and, as circumstances and funding permit, Libya.
Mauritania
Mauritanian researchers established a Center for Research in Renewable Energy at the University of Nouakchott and received an international award for malaria research. Science and engineering students in Mauritania account for more than 1/3 of university degree program enrollments.
Libya
In Libya, scientists have transformed the research base to focus on addressing national and regional challenges in areas such water resources, renewable energy, and medicine

Open Access
The MVSL Open portal is a free gateway for everyone in the Maghreb to access to a wide range of research publications and databases usually available only within universities. The topics covered range from law, history, and music to business planning, finance, patent searching, and the latest scientific discoveries. MVSL Open uses leading-edge searching and indexing software to provide easy access to the full text of current research from all over the world.

There is no cost to use the MVSL Open site, and there are no membership or affiliation restrictions

Digital libraries
Gorm Field. Gorm is a natural gas and oilfield in the Danish Sector of the North Sea. It was discovered in 1971 and is the largest oilfield exploited by Denmark. The production infrastructure consists of five bridge-linked platforms and is operated by BlueNord. The facilities include two wellhead platforms and several processing platforms. The Rolf and Dagmar fields are satellites to Gorm.

Reservoir 
The reservoir properties of the Gorm field are as shown.

Infrastructure

Installations 
The installations developed for the Gorm field were as follows. The water depth at the site is 39 metres.

In 2014 there were 32 oil production wells, one gas injection well, and 14 water injection wells.

Pipelines 
A number of pipelines transport fluids to and from the Gorm field. The Skjold, Rolf and Dagmar fields are satellites of Gorn

Note. CALM = Catenary Anchor Leg Mooring; buoys used to load ships with oil before the export pipeline was available.

Production 
The original design production rate for the process facilities on Gorm C was 60,000 barrels of oil per day (bopd). The design gas injection rate was 84 mmscfd (million standard cubic feet per day). The pumping platform Gorm C had a design throughput of 90,000 bopd.

The production strategy is to maintain reservoir pressure through water injection.

The production data for the Gorm field is shown in the following table. Production and injection numbers are cumulative rates up to 1 January 2014. 
About  of crude oil from the nearby Rolf oil field are processed on the Gorm platforms.

In  2014 the annual production was 6.3 million barrels of oil and 3,677 million standard cubic feet of gas (104 million m3 gas).

Incidents 
An oil leak occurred in the field on 2 March 2011.

Dagmar and Rolf fields 
The Dagmar and Rolf fields are satellites to the Gorm installations. The characteristics of the fields are as follows.

The fields are developed through two offshore installations as shown.

The oil production profile of the Dagmar and Rolf fields (in 1000 cubic metres) is as shown.

See also 

 Tyra field
 Dan oil field
 Skjold oil field
 Halfdan field
 Siri, Nini and Cecilie oil fields
 Valdemar oil and gas field
 South Arne oil and gas field
 Harald gas field
 Ravn oil field

References

External links
The Gorm Centre. Danish Energy Agency

Natural gas fields in Denmark
Oil fields of Denmark
North Sea energy
Maersk Oil
Sorption cooling. Sorption cooling is a technology that uses heat to produce cooling, by taking advantage of material properties.  One substance will heat or refrigerate depending on whether it is absorbed or released by another substance.  There may be a third substance that is displaced when the first substance is absorbed and re-absorbed when the first substance is released.  The absorption and release are dependent on ambient temperature.

External links
 Energy research center of The Netherlands: http://www.ecn.nl/nl/nieuws/newsletter-en/archive-2008/march-2008/topmacs/
 Solarservers: http://www.solarserver.com/solarmagazin/anlage_0308_e.html
 US Patent No. 6,907,797 applied to cooling downhole equipment http://www.freepatentsonline.com/6907797.html
 Sustec https://web.archive.org/web/20110724165826/http://www.sustec.nl/EN/technology-sorption-cooling.html

References

Cooling technology
List of British Rail Class 37 locomotives. The 309 members of the class 37 underwent many changes in their long career on British railways.  Under the TOPS system each change was reflected in a change of identity.  This table attempts to catalogue those changes.

Fleet list

See also
, for detailsincluding liveriesof preserved locomotives.

Notes

References

Bibliography
Ian Allan ABC of British Motive Power, several editions
British Rail Locomotives, Platform 5, several editions
Today's Railways monthly updates, Platform 5
 Kenny Barclay, British Rail in the 1980s and 1990s: Diesel Locomotives and DMUs, Amberley Publishing Limited, 2017 .
 Andrew Walker, Class 37 Locomotives, Amberley Publishing Limited, 2016 .

37 renumber
British railway-related lists
English Electric locomotives
Pitts Special (monoplane). Pitts built a monoplane racer Special in the early postwar years. Pitts also built several monoplane racing planes in the 1940s–1950s, the most famous of which was the low-winged "Pellet" of 1947 and the mid-winged Special Lil' Monster & Miss Dayton of 1951. Among other one-off projects, he also built a two-seat sport monoplane called the Big Hickey.

References

1940s United States sport aircraft
Applebay Zia. The Applebay Zia is an American, single-seat, high-wing, twin-boom, pusher configuration motor glider that was designed by George Applebay for the 1982 Sailplane Homebuilders Association Homebuilt Sailplane Design Contest. The aircraft was intended to be offered as a factory completed aircraft or as a kit. It first flew in 1982.

Design and development
Even though the Zia was designed for the 1982 Sailplane Homebuilders Association Homebuilt Sailplane Design Contest, it was withdrawn from the competition as it required changes during the contest period, which the rules prohibited. In fact the design that was to become the Zia went through six different configurations, starting as a canard. The aircraft is named for the Zia people.

The Zia is constructed from fiberglass  with a carbon fiber wing spar. The aircraft has fixed tricycle gear featuring wheel pants. The specified engine is the  Rotax 277 two-stroke, which is started with a manual recoil starter. The aircraft has flaps which deploy to 45° and retract anytime the flap handle is released, intentionally preventing the use of flaps and throttle at the same time. Fuel is  carried in the left wing root tank.

The Zia was placed in series production in the fall of 1983 but only four were completed, including the prototype. The design was not type certified and all examples produced were registered in the Experimental category

Operational history
In March 2011 there were still two Zias registered in the US, including one owned by the designer.

Aircraft on display
US Southwest Soaring Museum

Specifications (Zia)

See also

References

1980s United States sailplanes
Zia
Aircraft first flown in 1982
Twin-boom aircraft
Motor gliders
Single-engined pusher aircraft
Twin-tail aircraft
High-wing aircraft
Aircraft with fixed tricycle landing gear
Single-engined piston aircraft
Saskatoon Electrical System Substation. The Saskatoon Electrical System Substation is a municipal designated historic building located in the Nutana neighborhood of Saskatoon, Saskatchewan, Canada.  The property contains a two-story building in a Modern Classical style, made of No. 2 Redcliff, Light Claybank and Tee Pee Mocha brick construction.  The building was constructed in 1929 by Saskatoon Light & Power along with two other such stations to meet the growing electrical demand of the city.It was declared a heritage site on December 4, 2000; and renovated into offices in the 1990s.The building now houses the offices of the architectural firm of Kindrachuk Agrey Architects.

References

Buildings and structures in Saskatoon
Infrastructure completed in 1929
Body-in-Blue. Body-in-blue is a term used in the automotive industry for the set of body parts of a car, comprising the windows and the sheet metal components that are welded or glued together before other areas of the car (such as the trim, the engine, the drivetrain, etc.) are joined to it on the production line. A body-in-blue completely encloses the interior car cavity.

References

 Wave based modelling methods for steady-state vibro-acoustics, 2006, Pluymers, B.,KU Leuven

Automotive industry
Spratt Model 107. 

The Spratt Controlwing 107 was an unorthodox controlwing flying boat designed in the United States in the 1960s and marketed for home building in the 1970s.

The aircraft featured a flat, speedboat-like hull with a square bow and with tailfins blended into each side. The fins were angled to form a butterfly tail and included no moving surfaces. The wings were mounted on struts, parasol-style, and also contained no moving surfaces. Rather, each of the two wings could pivot independently to vary their angle of attack. The pilot and a single passenger sat side by side in an open cockpit with a converted marine outboard motor mounted behind them that drove a pusher propeller. The flight controls consisted of a helicopter-style collective that varied the angle of attack of both wings simultaneously, and a control wheel that varied their angles of attack in relation to one another. The hull was constructed from polyurethane foam and covered with fiberglass, and the wing panels were fiberglass throughout.

Designer George Spratt claimed that the Model 107 could not stall or spin, and that it was 75% less affected by turbulence than a conventional airplane design. With friend Elliot Dalland, Spratt began construction of the prototype (registered N2236) in 1962. During the 1970s, Spratt marketed plans for the Model 107 to homebuilders.

Specifications (Controlwing 107)

Notes

References

External links
Aerofiles
Spratt "Wingdinghy" in Popular Mechanics, June 1962

1970s United States sport aircraft
Flying boats
Homebuilt aircraft
Spratt aircraft
V-tail aircraft
Single-engined pusher aircraft
Parasol-wing aircraft
Aircraft first flown in 1967
Bioliquids. Bioliquids are liquid fuels made from biomass for energy purposes other than transport (i.e. heating and electricity).

Bioliquids are usually made from virgin or used vegetable and seed oils, like palm or soya oil. These oils are burned in a power station to create heat, which can then be used to warm homes or boil water to make steam. This steam can then be used to drive a turbine to generate electricity.

Rudolf Diesel's first public exhibition of the internal combustion engine, that was to later bear his name, ran on peanut oil.

Bioliquid production and use
Bioliquids have been used for many years to provide heat for homes on a small scale but now big energy providers are looking at their use on a larger scale.

A controversial plant in Bristol (UK) was recently given the go ahead despite receiving several hundred complaints. The plant will be built and operated by W4B and provide enough power for 25,000 homes.

Advantages
Bioliquids have several key advantages over other sources of renewable energy:
 Bioliquids have a high energy density
 The technology is well established, having been used for many years
 Can be used on demand, reacting quickly to changes in demand for power
 Can help reduce dependency on foreign oil.
 Reduces the green house gas emissions.

Disadvantages

Many of the same problems that affect biofuels also affect bioliquids and there are various social, economic, environmental and technical issues, which have been discussed in the popular media and scientific journals. These include: the effect of moderating oil prices, the "food vs fuel" debate, poverty reduction potential, carbon emissions levels, sustainable biofuel production, deforestation and soil erosion, loss of biodiversity, impact on water resources, as well as energy balance and efficiency.

Bioliquids also have several key problems compared to other sources of renewable energy:
 Price of fuel is very variable, due to competitiveness of feedstock for other uses (e.g. soap)
 Supply chain is still very new
 Governments, such as the EU, remained undecided on bioliquids

See also

 Bioheat, a biofuel blended with heating oil.
 Life cycle assessment
 List of vegetable oils section on oils used as biodiesel
 Low-carbon economy
 Table of biodiesel crop yields
 Vegetable oil economy
 Vegetable oils as alternative energy

References

External links

Biodegradable waste management
Bioenergy
 
Sustainable technologies
Fuels
Biomass
5F. 5F may refer to:

 5f electrons, of an electron configuration
 The Armageddon Factor (production code: 5F), a 1979 Doctor Who serial
 FlyOne (IATA code: 5F), a Moldovan low-cost airline
 Arctic Circle Air (former IATA code: 5F), a former US-American airline

See also
 5-Fluoro-AMT (5-F-AMT)
 F5 (disambiguation)
7M. 7M or 7-M can refer to:

7M-GE, a model of Toyota M engine
BT-7M, a model of BT-7 Soviet tank
Headquarters Detachment 7M, now named United States Marine Corps VMGR-252
VO-7M, now named United States Marine Corps VMA-131
AIM-7M Sparrow, alternate name for the AIM-7 Sparrow
7M platform, alternate name for Volkswagen Group B-VX62 platform
7M, the production code for the 1989 Doctor Who serial The Curse of Fenric
7M, shorthand for the Seven Mountain Mandate
7M Films, a talent management company

See also
M7 (disambiguation)
9L. 9L or 9-L can refer to:

NY-9L, abbreviation for New York State Route 9L
AIM-9L, a model of AIM-9 Sidewinder
AirTanker Services (IATA code 9L, formerly used by Colgan Air)
9L 3407, code for Colgan Air Flight 3407
Kappa 9L, a model of Kappa (rocket)
GCR Class 9L, a class of British 4-4-2T steam locomotive

See also
L9 (disambiguation)
Shear strength (discontinuity). The shear strength of a discontinuity in a soil or rock mass may have a strong impact on the mechanical behavior of a soil or rock mass. The shear strength of a discontinuity is often considerably lower than the shear strength of the blocks of intact material in between the discontinuities, and therefore influences, for example, tunnel, foundation, or slope engineering, but also the stability of natural slopes. Many slopes, natural and man-made, fail due to a low shear strength of discontinuities in the soil or rock mass in the slope. The deformation characteristics of a soil or rock mass are also influenced by the shear strength of the discontinuities. For example, the modulus of deformation is reduced, and the deformation becomes plastic (i.e. non-reversible deformation on reduction of stress) rather than elastic (i.e. reversible deformation). This may cause, for example, larger settlement of foundations, which is also permanent even if the load is only temporary. Furthermore, the shear strength of discontinuities influences the stress distribution in a soil or rock mass.

Shear strength

The shear strength along a discontinuity in a soil or rock mass in geotechnical engineering is governed by the persistence of the discontinuity, roughness of discontinuity surfaces, infill material in the discontinuity, presence and pressure of gasses and fluids (e.g. water, oil), and possible solution (e.g. karst) and cementation  along the discontinuity. Further the shear strength is dependent on whether the discontinuity has moved before in the geological history (i.e. are the asperities on opposing walls of the discontinuity fitting or non-fitting, or have the asperities been sheared off).

Determination shear strength

Only for simple models of discontinuities the shear strength can be analytically calculated. For real discontinuities no analytical calculation method exists. Testing on various scales in the laboratory or in the field, or empirical calculations based on characterizing the discontinuity are used to establish the shear strength.

Discontinuity shear strength tests

 Direct shear test or (Golder) shearbox test
 Punch-through shear test 
 Tilt test (geotechnical engineering)
 Triaxial test

Empirical calculations based on characterization

 Barton-Bandis shear criterion
 Sliding criterion

References

Shear strength
Soil mechanics
Mining engineering