omniomni/omni-engineering huggingface dataset:
Replication (optical media). In optical disc manufacturing, replication is the process of producing discs via methods that do not involve "burning" blank CD, DVD or other discs; the latter is known as duplication.

The replication of optical discs involves:
 the creation of a glass master from a client original master.
 the creation of a nickel stamper from that glass master.
 the injection molding of clear optical-grade polycarbonate substrates (clear discs) from that stamper.
 the metallizing and lacquering of those substrates to produce compact discs and DVDs.

References
 Bennett, Hugh. " The Demise of Low-Run CD Replication." EMedia Professional Aug 1999.
 How compact discs are made -- Explained by a layman for the laymen Kevin McCormick

120 mm discs
Hardware certification. Hardware certification is the process through which computer hardware is tested to ensure it is compatible with specific software packages, and operates as intended in critical situations. With ever dropping prices of hardware devices, the market for networking devices and systems is undergoing a kind of change that can be loosely termed as "generalization." Big established enterprises like Cisco, Novell, Sun Microsystems, etc., no longer manufacture all the hardware required in the market, instead they "license" or "certify" small hardware players operating in countries like Taiwan or China.

Certification process

Vendor certification 

To obtain certification, the hardware or software has to conform to a set of protocols and quality standards that are put in place by the original creator of technology. Usually the certification process is done by a "certification partner."  Certification partners are selected by the original creators of the technology and these partners are given the authority to do the testing and certification process. After a product is found to be compatible, it is labelled as xxx certified where xxx is the name of the original creator of the technology. Vendors use a "label" on the products to advertise the fact of compatibility with the said technology.

The process of certification ensures that the products made by different manufacturers are standardized and are compatible with each other as indicated in hardware or software platform.

Third-party certification 

Third-party certification is undertaken by an independent body. To obtain third-party certification, the hardware or software has to confirm to a set of quality standards determined by the third-party.

References

Product certification
Brush Turbogenerators. Brush Turbogenerators owned by Melrose Industries, is a group of international manufacturing companies under the BRUSH brand. It consists of Brush Electrical Machines Limited based in Loughborough, UK, Brush HMA based in Ridderkerk, The Netherlands and Brush SEM based in Plzeň in the Czech Republic. BRUSH Turbogenerators manufacture large generators for gas turbine and steam turbine drive applications. The company was founded by Charles Francis Brush, who was born in Cleveland, Ohio, USA in 1849 and who had invented his first electric dynamo in 1876. Melrose Industries completed the acquisition with FKI in 2008.

Staffs at Brush Turbogenerators have returned to their factory facing redundancy in February 2018. The company employs 790 employees in the UK with around 500 in Loughborough, but there has been a significant drop in sales of power generators due to the renewable energy growth.

References

Technology companies of the United Kingdom
Electrical engineering companies of the United Kingdom
Glover and Main. Glover and Main was a British manufacturer of gas meters and stoves located at Angel Road, Edmonton, London.

History
T. Glover & Co manufactured gas meters at the Gothic Works from 1897. Thomas Glover invented the original diaphragm gas meter in 1843. The company later amalgamated with R & A Main gas stove makers. During the 20th century they became one of the largest manufacturers of gas cookers in the UK. A new factory was built in 1951 on part of the Gothic Works. The business was taken over by Thorn Electrical Industries in 1965. Production ceased in 1983.

The former Gothic Works was demolished late in the 20th century and is now known as Glover Close which is a retail area comprising a Tesco and an IKEA store which opened on 10 February 2005 where a serious crowd disturbance took place.

References

External links 

Edmonton; Economic History from British History Online
 

Defunct manufacturing companies of the United Kingdom
Home appliance manufacturers of the United Kingdom
Manufacturing companies disestablished in 1965
History of the London Borough of Enfield
1965 disestablishments in England
1965 mergers and acquisitions
British companies disestablished in 1965
Alisport Silent 2. 

The Alisport Silent 2 is a single seater sailplane of Italian manufacture. It is of the FAI type DU Class glider. 
It is sold by Alisport ready-to-fly or kit-built as pure glider or self-launching glider.

The self-launching version is fitted with a single-blade propeller belt-driven by a two-stroke engine.

One Silent 2, two Silent 2 electrics and 25 Silent 2 Self-Launch models had been completed and flown by the end of 2011.

A version with the front electric sustainer is available

Design and construction

The fuselage is carbon and glass fiber composite with epoxy resin. The wings have an elliptical planform, vertical or elliptical design winglets. The wing structure includes extensive use of carbon fiber, both in the sandwich skins and in the tapered I-beam wing spar which uses pultruded carbon rods for the spar caps. The wing geometry is notable in that it varies non-linearly from the root to the tip, both in overall planform shape and in wing section profile.

The flaperons stretch for 11.0 meters of the full wingspan and their range of motion varies from positive landing L +8°, to +4° for thermalling, to 0°, -4°, and S -8° reflex positions for cruising. Schempp-Hirth-type spoilers extend on the upper wing surface only. There is a fixed main wheel behind the pilot, with shock absorber and drum brake activated via spoiler control lever aft travel.

Safety and operational qualities
The Silent 2 has light ailerons, light elevator, generous rudder. The roll rate is quick because of the lively feel of the ailerons. Stall is predictable and recovery simple. In level flight as airspeed is reduced when approaching the stall speed the sailplane vibrate a little, at this point decreasing the angle of attack results in airspeed increase and normal flight resume, from a climbing attitude the sailplane stall decisively, the nose pitch down gently and recovery is easy with stick forward. Spin entry is obvious and recovered with rudder and stick.

Specifications

See also

References

 Silent 2 Flight Manual
 https://web.archive.org/web/20070308124458/http://www.alisport.com/eu/eng/alianti.htm
 https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/glider_handbook/
 Soaring March 2005
 https://web.archive.org/web/20070418051732/http://www.glidingmagazine.com/FeatureArticle.asp?id=368
 https://web.archive.org/web/20070202111444/http://www.alisport.com/eu/images/img_news/Volaresett04/VOLARE_SETT04.htm

2000s Italian sailplanes
Glider aircraft
Alisport aircraft
Electric aircraft
Alligator shear. An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder.  Alligator shears are generally set up as stand-alone shears; however, there are types for excavators.  The jaw size can range from  long. They are generally used to cut ferrous members, such as rebar, pipe, angle iron, or I-beams.

Operation
Older alligator shears were powered by a flywheel. These shears ran continuously, which posed a safety hazard. Now alligator shears are hydraulically actuated. When actuated, the piston arm extends and slowly closes the upper jaw of the alligator shear, which passes alongside the bed or lower jaw of the shear to perform the cut.

Uses
Alligator shears are used for cutting long metal stock or scrap, generally where accuracy is not an important consideration, and the size or shape of the material makes other cutting or shearing options (such as a cutting torch) impractical. Alligator shears are often used in conjunction with large metal shredders in the metal recycling industry, to 'clean' or prepare scrap for shredding by removing unwanted fittings and other parts the shredder will not accept.

Safety
The safety requirements for other powered metalworking shears are contained in ANSI B11.4, but alligator shears are specifically exempted from that standard.  Federal OSHA and various state OSHA programs have requirements for guarding alligator shears, and newly manufactured alligator shears are provided with guards that adjust to the size of the stock or scrap being cut.   The purpose of this guard, however, is to prevent pieces of metal from being ejected during cutting.  Such a guard also prevents inadvertent exposure of the operator's hands, but does not conform to more stringent 'point of operation' guarding requirements.

In an interpretive letter dated June 24, 1981, Federal OSHA discussed the guarding dilemma presented by the alligator shear.

In instances where the shear is exclusively used for routine cuts on standardized stock, safeguarding of the point of operation is definable.  In other instances, the operator is safeguarded from exposure to the point of operation by the physical size and configuration of the material being cut.

These practical considerations for guarding are not exclusive to alligator shears.  A much more common type of equipment, the press brake, also requires a point of operation guarding when used with standardized stock, but not with large-dimension stock.

References

Metalworking cutting tools
OWL-S. OWL-S is an ontology built on top of Web Ontology Language (OWL) by the DARPA DAML program.

It replaces the former DAML-S ontology. "OWL-S is an ontology, within the OWL-based framework of the Semantic Web, for describing Semantic Web Services. It will enable users and software agents to automatically discover, invoke, compose, and monitor Web resources offering services, under specified constraints."

The OWL-S Ontology

Development of OWL-S aims to enable the following tasks:

 Automatic Web service discovery: with the development of the Semantic Web, many Web Services will be available on the Web, performing the most various tasks. OWL-S will help software agents to discover the Web Service that would fulfill a specific need within some quality constraints, without the need for human intervention.
 Automatic Web service invocation: generally, it is necessary to write a specific program to invoke a Web Service, using its WSDL description. OWL-S will open the possibility for a software agent to automatically read the description of the Web Service's inputs and outputs and invoke the service.
 Automatic Web service composition and interoperation: in a Web where many services are available, it should be possible to perform a complex task, involving the coordinated invocation of various Web Services, based solely on the high-level description of the objective. OWL-S will help in the composition and interoperation of the Services in a way that will enable the automatic execution of this tasks.

The OWL-S ontology has three main parts: the service profile, the process model and the grounding.

 The service profile is used to describe what the service does. This information is primary meant for human reading, and includes the service name and description, limitations on applicability and quality of service, publisher and contact information.
 The process model describes how a client can interact with the service. This description includes the sets of inputs, outputs, pre-conditions and results of the service execution.
 The service grounding specifies the details that a client needs to interact with the service, as communication protocols, message formats, port numbers, etc.

OWL-S and WSDL

OWL-S requires an additional description for a full specification of the grounding, the most commonly used being WSDL. Although both languages target at different levels of specification, there is an intersection between them:

 An OWL-S atomic process corresponds to a WSDL operation;
 The inputs and outputs of an OWL-S atomic process correspond to WSDL messages;
 The types of the inputs and outputs of an OWL-S atomic process correspond to WSDL abstract types.

See also

 Ontology (information science)
 Semantic Web
 Semantic Web Services
 Web Ontology Language (OWL)
 WSDL
 WSMO

References

Markup languages
Semantic Web
Web services
International Journal of Hydrogen Energy. The International Journal of Hydrogen Energy is a peer-reviewed scientific journal covering all aspects of  hydrogen energy, including hydrogen generation and storage. It is published by Elsevier and is an official journal of the International Association for Hydrogen Energy. Established in 1976, the journal became monthly in 1982, biweekly in 2008, 36/yr in 2013, and weekly in 2015. The editor in chief is Emre Veziroglu and the founding editor in chief is his father Turhan Nejat Veziroğlu (University of Miami).

In 2023, the journal was criticized for rejecting papers that do not cite enough of the journal's previously published papers.

Abstracting and indexing 
The journal is abstracted and indexed in:

According to the Journal Citation Reports, the journal has a 2023 impact factor of 8.1.

References

External links 
 
 International Association for Hydrogen Energy 

Elsevier academic journals
Energy and fuel journals
English-language journals
Academic journals established in 1976
Hydrogen economy
Hydrogen technologies
Weekly journals
Academic journals associated with international learned and professional societies
Caudron C.600 Aiglon. The Caudron C.600 Aiglon is a 1930s French two-seat monoplane sport/touring aircraft built by Caudron–Renault.

Development
The Aiglon (en: Eaglet) was designed by Marcel Riffard after he took over the design department when Caudron merged with Renault.  The Aiglon was a two-seat low-wing cantilever monoplane with tandem open cockpits.  The first of two prototypes first flew in March 1935 from Issy-les-Moulineaux, France.  Two special long-distance versions (C.610 Aiglons) were built with increased fuel capacity.  In December 1935 a C.610 was flown from Paris to Saigon at an average speed of 80 mph (129 km/h).

The type was popular with French private owners and flying clubs, and a number were sold abroad.  With the outbreak of the Second World War many of the aircraft were requisitioned by the French Government for use as liaison aircraft by the Armée de l'Air.  Total production of the Aiglon was 203 aircraft, including 178 of the basic Renault 4Pgi Bengali Junior powered model.

Variants
C.600 Aiglonproduction model with a Renault 4Pgi Bengali Junior engine, 178 built.
C.600G Aiglonmodified version with a de Havilland Gipsy Major engine, five built.
C.601 Aiglon Seniormodified version with a Renault 4Pei engine, 18 built.
C.610 Aiglonspecial long-distance single-seat version with increased fuel, two built.
Caudron KXC1A C.601 exported to Japan for evaluation by the Imperial Japanese Navy Air Service.

Operators
The aircraft was operated by flying clubs, private individuals and a few air forces:

Argentine Air Force

French Air Force

Guatemalan Air Force

Royal Hungarian Air Force operated 6 aircraft between 1943 and 1945

Imperial Japanese Navy Air Service, one example evaluated under designation KXC

Royal Romanian Air Force

Spanish Republican Air Force, used at El Carmolí fighter pilot training facility.

Specifications (C.600)

See also

References

Bibliography

 
 
 

C.600 Aiglon
Aircraft first flown in 1935
1930s French civil utility aircraft
Low-wing aircraft
Single-engined tractor aircraft
Aircraft with fixed conventional landing gear
Mayfield Fellows Program. The Mayfield Fellows Program is a university program that offers students in-depth training and experience in high-tech entrepreneurship.

The program, originally called the "Technology Ventures Co-op" was founded in 1996 at Stanford University and expanded in 2001 to include the University of California, Berkeley.  The two programs each have a slightly different focus.  At Stanford, the students are juniors, senior, and co-terminal masters students, primarily in engineering and science.  At Berkeley, the students are generally graduate students in business or engineering.

The students do case studies in the classroom, intern at high-tech startup companies, and meet with senior-level mentors from those companies in the industry.

Stanford University 
Each year 12 students are selected to participate in this nine-month program, combining a sequence of courses, mentoring and networking activities, and a paid internship at a Silicon Valley startup.

The students enter a program that covers marketing, strategy, finance, ethics and leadership. The student Fellows are later introduced to various VC firms' portfolio companies for a summer internship.

Alumni and Companies Founded
 Muhammad Umar Nadeem (2023) - Kabilah
 Aaron Choi (2023) - Kabilah
 Sarah Raza (2022) - Kabilah
 Alex Gurevich (2005) -  sayheyhey, ooma
 Armen Berjikly (2001) - Experience Project, Kanjoya, Motive Software
 Amy Chang (1999) - Accompany
 Ben Jun (1996) - Cryptography
 Ben Olding (1999) - txteagle
 Camille Hearst (2004) - Kit
 Chris Gori (1996) - Cryptography
 Clara Shih (2004) - Hearsay Labs
 Dave Merrill (2001) - Sifteo, Elroy Air
 Eileen Long (1998)  - FairSoftware
 Graham Miller (1998) - Marketcetera
 Guha Jayachandran (2003) - Cruxlux
 Jeff Seibert (2007) - Increo, Crashlytics
 Jonah Greenberger (2008) - Bright
 Jonathan Berger (2004) - Maroon Labs
 Josh McFarland (1999) - TellApart
 Josh Reeves (2005) - Gusto
 Josh Schwartzapel (2007) - Cooliris
 Justin Rosenstein (2003) - Asana
 Justin Smith (2003) - Prophetic Media
 Karthik Rau (1999) - SignalFx
 Kelly Bayer Rosmarin (1998) - CustomInsight
 Kevin Systrom (2005) - burbn/Instagram
 Kit Rodgers (1996) - Cryptography
 Mark Shaw (1997) - Guidewire Software, Strava
 Melissa Miao (2001) - CMP Healthcare
 Mike Krieger (2007) - burbn/Instagram
 Moritz Sudhof (2011) - Motive Software
 Nathan Eagle (1999) - Jana
 Nolan Glantz (1996) - Cithaeron Partners/The Cantor Exchange
 Ping Wang (2001) - VAE Corporation
 Scott Bowie (1998) - Zao Technology Innovators
 Scott Kleper (1999) - Context Optional
 Steve Garrity (2004) - Hearsay Labs
 Tristan Harris (2006) - Apture
 Vivian Chiang (1998) - Orbit Baby
 Yael Pasternak (1998) - MayasMom

References

External links 
Inc Magazine - Best Courses 2011 Mayfield Fellows Providing students with a front-row seat to all the drama that Silicon Valley has to offer
Quora Mayfield Fellows

United States educational programs
1.1. 1.1 may refer to:

 1.1.1.1, a Domain Name System service
 1.1-inch/75-caliber gun
 Falcon 9 v1.1 orbital launch vehicle
 Trabant 1.1, an automobile
 A one-day Category 1 race in the UCI race classifications system
 A software version number, including: 
 HTTP 1.1, a version of the Hypertext Transfer Protocol first published in 1997
 SAML 1.1, a version of Security Assertion Markup Language ratified in 2003

See also 
 11 (disambiguation)
 1:1 (disambiguation)
 1+1 (disambiguation)
SHV connector. The SHV (safe high voltage) connector is a type of RF connector used for terminating a coaxial cable. 
The connector uses a bayonet mount similar to those of the BNC and MHV connectors, but is easily distinguished due to its very thick and protruding insulator. This insulation geometry makes SHV connectors safer for handling high voltage than MHV connectors, by preventing accidental contact with the live conductor in an unmated connector or plug. The connector is also designed such that when it is being disconnected from a plug, the high-voltage contact is broken before the ground contact, to prevent accidental shocks. The connector is also designed to prevent users from forcing a high-voltage connector into a low-voltage plug or conversely (as can happen with MHV and BNC connectors), by reversing the gender compared to BNC.

Details of the connector comprising dimensions of the mating parts, voltage rating, minimum insulation requirements and more are specified by the IEC document 60498.

SHV connectors are used in laboratory settings for voltages and currents beyond the capacity of BNC and MHV connectors. Standard SHV connectors are rated for 5000 volts DC and 5 amperes, although higher-voltage versions (to 20 kV) are also available.

References

RF connectors
Variable-position horizontal stabilizer. A variable-position horizontal stabilizer changes the pitch simultaneously with the flaperon setting.
Normally the horizontal stabilizer also known as tailplane is fixed and has a hinged elevator, a stabilator is another method that combines the functions of an elevator and a horizontal stabilizer.
The variable-position horizontal stabilizer is governed by the flaperon setting: the settings of the flaperon control produce corresponding changes to the stabilizer angle of incidence, thus defining the trim airspeed in relation to the flaperon requirements. The conventional elevator remains in trail, minimizing trim drag.
Flaperon settings are used to optimize the lift and drag of a wing. When the flight requires low speed the flaperons are in a positive position and when the flight requires high speed flaperons are in a negative position.

Sources
https://web.archive.org/web/20070418051732/http://www.glidingmagazine.com/FeatureArticle.asp?id=368
https://web.archive.org/web/20070202111444/http://www.alisport.com/eu/images/img_news/Volaresett04/VOLARE_SETT04.htm

Aircraft controls
Champlin Fighter Museum. The Champlin Fighter Museum was an aircraft museum located at Mesa, Arizona. It specialized in airworthy World War I and World War II fighters. After 22 years of operation, the Museum was closed on May 26, 2003, and its collection was moved to the Museum of Flight at Seattle's Boeing Field.

It also published books related to aviation, such as Henry Sakaida's 1985 book Winged Samurai: Saburo Sakai and the Zero Fighter Pilots.

See also
List of aviation museums

References

External links

 Images of aircraft exhibited

Aerospace museums in Arizona
Military and war museums in Arizona
Museums in Mesa, Arizona
Defunct museums in Arizona
University College of Engineering. University College of Engineering may refer to:

 University College of Engineering, Arni, Tamil Nadu, India
 University College of Engineering, Kakatiya University, Telangana, India
 University College of Engineering, Kanchipuram, Tamil Nadu, India
 University College of Engineering, Kariavattom, Kerala, India
 University College of Engineering, Nagercoil, Tamil Nadu, India
 University College of Engineering, Osmania University, Telangana, India
 University College of Engineering, Pattukkottai, Tamil Nadu, India
 University College of Engineering, Thodupuzha, Kerala, India