omniomni/omni-engineering huggingface dataset:
Preceptor Aircraft. Preceptor Aircraft was an American aircraft kit manufacturer located in Lake Lure, North Carolina and later in Rutherfordton, North Carolina, producing kits for homebuilt monoplanes. The company was previously named Nostalgair.

After a period of inactivity, the company relaunched its website to deliver plans in 2013, although by 2017 the website was not operating  and the company seems to have gone out of business in 2016.

History
Preceptor Aircraft was originally called Nostalgair and based in San Antonio, Texas. N3 Pup construction was subcontracted to a Colorado company. Nostalgair and its sister company, Global Tool, (maker of Global engines), went out of business in 1986. Warren Mosler purchased the company's assets and appointed Bob Counts, designer of the N3 Pup, as president. Production moved to Winston-Salem, North Carolina. By 1993, the company expanded to two buildings and produced as many as 40 kits per year.

Aircraft
 STOL King, a high wing STOL aircraft.
 Ultra Pup, a two seat high wing aircraft.
 Super Pup, a single seat experimental high wing aircraft.
 N3 Pup, a single seat ultralight high wing aircraft.
 Stinger, a single seat ultralight high wing aircraft.

References

External links

Defunct aircraft manufacturers of the United States
Institution of Incorporated Engineers, Sri Lanka. The Institution of Incorporated Engineers, Sri Lanka (IIESL) was established in 1977 and incorporated by a Sri Lankan Act of Parliament. The institute registers engineering technologists and Incorporated Engineers under the Sydney Accord.

History
Formed as the All Ceylon Engineering Diplomates Association in 1977, the society in 1992 changed to the Institute of Engineering Diplomates, Sri Lanka by an Act of Parliament, Act No 64 of 1992, registering all Engineering Diplomates. In 2000, it changed once again to Institution of Incorporated Engineers, Sri Lanka by an Act of Parliament, Act No 11 of 2000.

Membership
Hon. FIIE(SL) - Fellow of Institution of Incorporated Engineers, Sri Lanka
FIIE(SL) - Fellow of Institution of Incorporated Engineers, Sri Lanka
MIIE(SL) - Member of Institution of Incorporated Engineers, Sri Lanka  
AMIIE(SL) - Associate Member of Institution of Incorporated Engineers, Sri Lanka
Student members

The following courses are entitled to membership:
Higher National Diploma in Engineering (HNDE) - Sri Lanka Institute of Advanced Technological Education
National Diploma in Technology (NDT) - Institute of Technology, University of Moratuwa
National Diploma in Engineering Science (NDES) - Institute of Engineering Technology, Sri Lanka
Diploma in Technology - Open University of Sri Lanka

See also
Engineering Council, Sri Lanka
Institution of Engineers, Sri Lanka

References

External links
IIE website
IIESL Membership

Engineering societies based in Sri Lanka
Organizations established in 1977
Preceptor N3 Pup. The Preceptor N3 Pup is a family of ultralight, tube-and-fabric, high-wing, homebuilt aircraft. Kits were produced and marketed by Preceptor Aircraft, of Rutherfordton, North Carolina. The company was operating on a limited basis, actively selling plans online, but seems to have gone out of business in 2016.

Designed to meet FAR 103 Ultralight Vehicles standards, the N3 Pup can accept various lightweight four stroke engines of between . If built to specifications with minimal additions, it can meet the requirements for a FAR 103 ultralight aircraft, with an empty weight of . It may also be built as an amateur-built aircraft or US light-sport aircraft at higher weights.

Design and development

The Pup is designed to be flown cross-country and also can be mounted with floats and skis.

The N3 Pup uses tube-and-fabric construction and a conventional 4-cycle engine. The fuselage and tail are welded from 4130 steel tube. There are two main wing configurations that can be built. An aluminum wing spar with hinges allows the wings to be folded for trailering or storage. A wooden wing spar configuration gives the plane a lighter weight, but leaves the wings fixed. The engine cowling is made from fiberglass.

The aircraft has had many engine choices available, but was marketed to use the Half VW engine first developed by Global engines, later bought by Mosler engines and finally marketed by TEC engines. The Total Engine Concepts MM CB-40 was the last purpose-built engine marketed for the Pup. The aircraft was sold as a partially prefabricated kit or can be built scratchbuilt from plans.

The design was also adapted as an autogyro, the Little Wing Roto-Pup.

Operational history
A N3 Pup named "Citabriette" -- modified to look like a Citabria -- won the Grand Champion Ultralight award at the EAA Oshkosh airshow 1988.

Variants

N3 Pup
Single seat variant designed to resemble a 3/4 scale Piper J-3 Cub. Originally named the Nostalgair N-3 Pup. Engine is a TEC Half VW of . Meets FAR 103 requirements with an empty weight of  and gross weight of . 830 had been completed by December 2011.
Stinger
Single seat variant with a parasol wing in place of the enclosed cabin, longer nose and larger engine. First flown in 1995. Engine is a Volkswagen air-cooled engine of . Gross weight of . Two had been completed by December 2011.
Super Pup
Single seat variant with larger engine and higher empty weight, first flown in 1995. Engine is a Volkswagen air-cooled engine of . Empty weight of  and gross weight of . 55 had been completed and flown by December 2011.
Ultra Pup (N3-2)	
Two seat 3/4 scale Piper J-3 Cub, first flown in 1988 with a  MM-CB engine. Production engine is a Volkswagen air-cooled engine of . Empty weight of  and gross weight of . Folding wings for storage or ground transport. 200 had been completed and flown by December 2011.

Specifications (N3 Pup)

See also

References

External links

Homebuilt aircraft
Light-sport aircraft
N3
1990s United States sport aircraft
1990s United States ultralight aircraft
Single-engined tractor aircraft
Aircraft with fixed conventional landing gear
Electric Aircraft Corporation. Electric Aircraft Corporation is an American aircraft manufacturer that was founded by Randall Fishman, a retired New Jersey jeweler. The company is based in Cliffside Park, New Jersey and specializes in the design and manufacture of electric aircraft under the ElectraFlyer brand name.

The company's first product was the ElectraFlyer Trike, an ultralight trike powered by an in-house designed electric motor and battery pack. The company then started selling power train components to convert existing ultralights to electric power. The single-seat ElectraFlyer-C followed, using the same  electric motor and a converted Monnett Moni motorglider airframe.

In 2008 Fishman won the August Raspet Memorial Award for his electric aircraft work. The award recognizes the "person who has made an outstanding contribution to the advancement of light aircraft design" each year.

The company next developed a new design that was intended for production, an all composite electric aircraft, the ElectraFlyer-X, that was introduced in 2009. The ElectraFlyer-X did not, however, enter production.

The Great Recession caused development of the company products to be delayed. In 2011 Fishman said, "The recession has made this not a great business right now. I have done okay because I have kept it small, selling a few complete trikes and many propulsion kits, meters and electronic controllers for people to modify their own ultralights."

The company developed an electric powered version of the Airsport Song, called the Electric Aircraft Corporation ElectraFlyer-ULS, which was introduced in 2012.

The company also sells the Electra 1, a  electric motor for ultralight trikes.

Aircraft

References

External links
Official website archives on Archive.org

Aircraft manufacturers of the United States
Electric aircraft
Cliffside Park, New Jersey
Companies based in Bergen County, New Jersey
Robots and Avatars. Robots and Avatars was a programme of events and educational activities which explores how young people will work and play with new representational forms of virtual and physical life in 10–15 years time. It was produced by body>data>space with support from NESTA. between 2009 and 2012.

The project examined multi-identity evolutions of younger generations within the context of a world in which virtual and physical spaces are increasingly blended. A participatory web and events led programme with connected educational activities took taking place across 2010 and onwards, in the UK and internationally. The project included contributions by a diverse range of experts, professionals and specialists working with robots and avatars including Professor Noel Sharkey (Professor of Artificial Intelligence and Robotics and Professor of Public Engagement University of Sheffield), Pear Urishima (Apple), Ghislaine Boddington from body>data>space and Derek Richards from Hi8us South.

Robots and Avatars Forum
Robots and Avatars launched in November 2009 with a Forum at NESTA, attended by an international group of 80 experts, professionals and young people in London.

Robots and Avatars Lunch Debates
Between June and November 2010 the programme hosted a series of Lunch Debates exploring Artificial Intelligence, Behaviour and Ethics, Health and Wellbeing and the Future Workplace with expert provocateurs and top level thinkers.

The Overall Programme
The programme continued throughout 2010–2011 with educational events, an exhibition, a website, vodcasts with key experts and a book/DVD.

Themes
Robots and Avatars explored a wide range of themes including:
 Robots
 Avatars
 Future World of Work and Education
 Identity
 Gaming
 Gaming in Education
 Artificial Intelligence
 Virtual Worlds
 Performance
 Telematics
 New media art
 Popular Culture

References

External links
 Robots and Avatars
 body>data>space
 NESTA
  Technology of robot avatar

Education theory
Educational research
Educational assessment and evaluation
ACEC California. The American Council of Engineering Companies of California (ACEC California) is a statewide group representing consulting engineering and land surveying firms in California.  The organization promotes use of the private sector in the growth and improvement of California. The ACEC California membership provides engineering, surveying, construction management and environmental consulting services for all project phases.

As of February 2010 the membership includes nearly 1100 civil, structural, geotechnical, electrical and mechanical engineering and land surveying firms. The member firms provide services for all types of public works, residential, commercial and industrial projects.

In November 2000, California voters by a wide margin approved Proposition 35, a landmark measure sponsored by ACEC California. Prop 35 was endorsed by hundreds of organizations representing taxpayers, seniors, schools, local governments, business, labor, and engineers and almost unanimously by California’s newspapers. This measure authorized state and local governments to engage in public-private partnerships with qualified engineers like those represented by ACEC California to speed up the delivery of transportation, water, education, energy, housing and many other public works projects.

Since the passage of Prop 35 ACEC California continues to work with California officials to develop more ways to deliver vital new infrastructure quickly, efficiently and cost effectively. Members of the public can find California based engineering and surveying firms through an online, searchable database.

It is the largest state-member organization of the American Council of Engineering Companies.

References

Organizations based in Sacramento, California
Year of establishment missing
Robert Corich. Robert M. Corich is a British remastering engineer and record producer, who started his career as an IBM mainframe operator, engineer and consultant where he wrote courses and books on the IBM mainframes and operating systems, often lecturing in these topics all over the world.

His love of music then moved him into the audio world as a studio hand, moving onto engineering and production.

He specialised as a mastering engineer, reworking catalogues and remastering for major bands such as Uriah Heep, Status Quo., Chris Squire of Yes, Manfred Mann's Earth Band, Osibisa, Nazareth, Budgie, Rainbow, Walter Egan, Fairport Convention, Family, Roger Chapman, Magnum, Medicine Head, John Fiddler, Ken Hensley, Chelsea, Girlschool, Gene Loves Jezebel, Jay Aston, Paladin, Gentle Giant, Ian Gillan, John Lawton, Rebel, Zar, John Rabbit Bundrick, Manny Charlton, Native Son, Caravan, Jessica Blake, Crawler and many more at the height of the CD age also producing new releases, anthology sets, historical releases and live albums for many of these artists.

His production company, Red Steel Productions, often designed the artwork and packaging along with Andrew Buckle and Rachel Gutek of Guppy Art.

Corich has also been involved in writing extensive liner notes and books for many of the artists, as his research and knowledge of the rock scene of the 1960s, 1970s and 1980s is well documented.
Corich has been involved in a wide variety of projects, he remastered the complete back catalogs of Manfred Mann's Earth Band, Budgie and Uriah Heep discography in the early 1990s and again nearly ten years later. He also featured as a critic in the DVD documentaries series Inside for bands such as Led Zeppelin, Emerson, Lake and Palmer, 
Pink Floyd, The Who, Genesis, Deep Purple, Supertramp, Black Sabbath, Thin Lizzy, Slade, Uriah Heep, Wishbone Ash, Sensational Alex Harvey Band and Van Der Graff Generator.

He has also written books on The Eagles, Led Zeppelin, The Who, AC/DC, ABBA, The Ramones, Thin Lizzy, Supertramp, Slade, Uriah Heep and Osibisa.

In recent years, Corich relaunched his record label Red Steel Music and along with his production company is working with classic British rock acts, along with newcomers to the scene. He is currently producing new albums for Osibisa and Looking For Droids, as well as continuing to work on as yet unannounced historical musical projects.

References

External links
 Red Steel Music website
 Uriah Heep website
 Status Quo Site

Year of birth missing (living people)
Place of birth missing (living people)
Living people
British record producers
United States Society on Dams. The United States Society on Dams is a professional association headquartered in Westminster, Colorado that is dedicated to:
 Advancing the knowledge of dam engineering, construction, planning, operation, performance, rehabilitation, decommissioning, maintenance, security and safety;
 Fostering dam technology for socially, environmentally and financially sustainable water resources systems;
 Providing public awareness of the role of dams in the management of the nation's water resources;
 Enhancing practices to meet current and future challenges on dams; and
 Representing the United States as an active member of the International Commission on Large Dams (ICOLD).

References

External links
 

American engineering organizations
Dam-related organizations
Dams in the United States
Organizations with year of establishment missing
Organizations based in Denver
Bell L-39. The Bell L-39 was an experimental aircraft used to test the characteristics of swept wings.

Design and development 
After the end of World War II, the United States military took interest in German aerodynamic research into swept wings.  To test the low-speed characteristics of swept wings, the US Navy contracted Bell Aircraft to modify two P-63 Kingcobras as test aircraft for use by NACA.  These aircraft, assigned the bureau numbers 90060 and 90061, were designated L-39-1 and L-39-2, based on Bell's code letter "L" and the aircraft's model number "39".  Both aircraft were fitted with straight inner wing panels and 35 degree swept outer panels derived from the P-63E, both sections lacking dihedral.  A pair of cameras were mounted behind the canopy to film the airflow pattern, which was indicated by tufts of string attached to the wings.  Leading-edge slots could be bolted into the wings in different configurations.  The main landing gear was fixed, with only the nose gear being retractable.  All armament was removed from the aircraft, and the rear canopies were blacked out.

A ventral fin extension was fitted under the rear fuselage of the L-39-1 after its first flight.  During subsequent test flights of L-39-1 the center of gravity was found to be too far forward.  To remedy the problem the fuselage was extended by four feet and a lighter propeller was installed. At the time, a surplus three-bladed propeller cost twice as much as a surplus P-39 Airacobra, therefore two P-39Q-10-BEs were purchased for their propellers.  L-39-2 was fitted with the fuselage extension and an even larger ventral fin extension from the start.

Operational history 
The L-39-1 made its first flight at Niagara Falls Airport on April 23, 1946, with Bell test pilot Alvin M. "Tex" Johnston at the controls.  Early flights revealed several handling problems, which were subsequently fixed with modifications to the fuselage and tail.  The L-39 was noted to have poor stall characteristics, stalling with little warning.  Different leading-edge slot configurations were tested, and pilots found that a 40 percent slotted wing improved stall characteristics.  60 and 80 percent slotted wings were found to have excellent stall characteristics, while 20 and 100 degree slots were unsatisfactory.

The L-39 program was halted on August 26, 1946, and the L-39-1 was sent to Langley Field, where it was used for wind tunnel testing.  The L-39-2 was retained by Bell to support their X-2 program, being modified with a new fully swept wing of a design intended for the X-2.  On December 12, 1949, both aircraft were transferred to the Lewis Research Center before being sold for scrap in 1955.

Variants 

L-39-1
First aircraft
L-39-2
Second aircraft, later modified with fully swept wings.

Specifications (L-39-1, initial configuration)

See also

Notes

References 

Aircraft first flown in 1946
Bell aircraft
Mid-engined aircraft
Single-engined tractor aircraft
Low-wing aircraft
1940s United States experimental aircraft
Aircraft with fixed tricycle landing gear
Single-engined piston aircraft
(Mesitylene)molybdenum tricarbonyl. (Mesitylene)molybdenum tricarbonyl is an organomolybdenum compound derived from the aromatic compound mesitylene (1,3,5-trimethylbenzene) and molybdenum carbonyl. It exists as pale yellow crystals, which are soluble in organic solvents but decompose when in solution. It has been examined as a catalyst and reagent.

Synthesis
(Mesitylene)molybdenum tricarbonyl arises from the reaction of molybdenum hexacarbonyl with hot mesitylene:

Mo(CO) + (CH)CH  →   Mo(CO)[(CH)CH] + 3 CO

It can also be synthesized, with good yields by displacement of pyridine ligands of the trispyridine complex Mo(CO)(pyridine) in the presence of Lewis acids. This reaction proceeds at lower temperatures of the compound than the direct method
PyMo(CO) + (CH)CH + 3BF·O(CH) → [(CH)CH]Mo(CO) + 3PyBF

Structure and properties
The mesitylene group is bonded to the molybdenum centre through delocalized π - electron ring. The aromaticity of the ligand is indicated by its ability to undergo Friedel-Crafts reactions, e.g. with acetyl chloride.  Such reactions are slower on the tricarbonyl(mesitylene)molybdenum than benzene, which suggests that the electron density contributes to the bonding to the molybdenum.

The tricarbonyl(mesitylene)molybdenum complex adopts a near C symmetry with the three carbonyl groups occupying an eclipsed arrangement relative to the three methyl groups. The mesityl group is η to the molybdenum central metal atom, which lies 0.009 Å away from the ring centre and the methyl groups on the benzene are bent out of plane by 0.035 Å due to steric interaction with the carbonyl groups.

Reactions
The arene can be displaced by the trimethylphosphite via a S2 type mechanism to give the fac-tricarbonyltris(trimethyl phosphite)molybdenum.
(CHO)P + [(CH)CH]Mo(CO) → fac-[(CHO)P]Mo(CO) + (CH)CH

The tricarbonyl(mesitylene)molybdenum complex can be used an electron donor.

Tricarbonyl(mesitylene)molybdenum can act as a catalyst for the polymerisation of phenylacetylene. The Molybdenum complex is activated with an oxidant such as chloranil. The result of the charge transfer facilitates ring slippage and the mesitylene group changes from η to η this allows the phenylacetylene monomer units to bind to the metal centre. Recently, it has been reported that tricarbonyl(mesitylene)molybdenum can act as a catalyst for the epoxidation of alkenes.

References

Organomolybdenum compounds
Carbonyl complexes
Molybdenum(0) compounds
Time-varying microscale model. The time-varying microscale (TVM) model is a microscale diagnostic model specifically designed to compute data for extremely high-resolution mapping (tens of meters to a few hundred meters) without the high computational costs of running a mesoscale numerical weather prediction (NWP) model such as weather research and forecasting model (WRF).

TVM uses high-resolution land surface data to calculate the effects of microscale terrain features, near-surface roughness features, and other terrain blocking effects typically left unresolved by coarser mesoscale NWP models. Microscale terrain features are resolved using a kinematic terrain adjustment, near-surface roughness features are resolved using a log-profile surface roughness adjustment, and a Froude number adjustment is applied to calculate terrain-blocking effects on wind flow.

All of these effects are computed at each time-step in the study period and based not only on wind speed and elevation, but on quantities such as wind direction and thermodynamic properties of the lower atmosphere. This enables a sophisticated time-varying spatial analysis.

References

Numerical climate and weather models
Advanced Composite Materials (journal). Advanced Composite Materials is a bimonthly peer-review scientific journal that was established in 1991. It is published by Taylor & Francis on behalf of the Japan Society for Composite Materials and the Korean Society for Composite Materials. The journal covers all scientific and technological aspects of composite materials and composite material structures, including physical, chemical, mechanical, and other properties of advanced composites as well as microscopic to macroscopic behavior studied both experimentally and theoretically. Novel fabrication techniques for composites and composite structural components are also included.

In addition to original research papers, the journal publishes technical papers, review papers, and research notes. News accounts related to new materials and their processing are also included. Furthermore, some papers originally published in Japanese in the Journal of the Japan Society for Composite Materials are translated and published in this journal.

Abstracting and indexing 
The journal is abstracted and indexed by:

According to the Journal Citation Reports, the journal has a 2020 impact factor of 2.870.

References

External links 
 

Materials science journals
Academic journals established in 1991
Quarterly journals
English-language journals
Taylor & Francis academic journals
1991 establishments in Japan
Istanbul Technical University Faculty of Textile Technologies and Design. ITU Faculty of Textile Technologies and Design is one of the ITU faculties in Gümüşsuyu campus. It is the first and the single one offering textile engineering education in Istanbul, and also comes first among the top textile engineering schools in Turkey. Its history could be traced back to 1955. There are three undergraduate programs under Textile Engineering Department:
 Textile Engineering Program
 Fashion and Design Program
 Textile Development and Marketing Program
ITU Faculty of Textile Technologies and Design is a member of Association of Universities for Textiles (AUTEX)

References

External links
 ITU School of Textile Technologies and Design, English
 ITU School of Textile Technologies and Design, Turkish
 Info about Textile engineering program

Istanbul Technical University
Textile schools