omniomni/omni-engineering huggingface dataset:
Concrete curved-chord through girder bridge. A concrete curved-chord through girder bridge, sometimes known as a camelback bridge, is a type of concrete bridge most common in the U.S. state of Michigan and the Canadian province of Ontario. C.V. Dewart, the first professional bridge engineer of the  Michigan State Highway Department, designed the type. By the early 1920s, the Michigan State Highway Department had produced standardized designs for these bridges in lengths of 50, 60, 70, 75 and 90 feet. The first such bridge in Michigan was built in 1922 over the Raisin River at Tecumseh. By the end of the decade, the design fell out of favor since it could not be widened to handle increasing traffic.

, the longest surviving example in Michigan is the three-span,  US 12–St. Joseph River Bridge, built in 1922 in Mottville.

List of bridges
23 Mile Road–Kalamazoo River Bridge
Avery Road–Galien River Bridge
Lincoln Road–Pine River Bridge
Second Street–Gun River Bridge
Ten Curves Road–Manistique River Bridge
Thornapple River Drive Bridge
US 12–St. Joseph River Bridge
Wadhams Road–Pine River Bridge
Vernier Street–Swan Creek Bridge

Notes

References

 
Transportation in Michigan
Transport in Ontario
Journal of Biomedical Materials Research. The Journal of Biomedical Materials Research is a peer-reviewed scientific journals of biomedical material science. It was established in 1967. In 1974, it absorbed Biomedical Materials Symposium (1971–1974). In 1990, it absorbed the journal Journal of Applied Biomaterials (1990–1995). In 2002, it split into two parts, Journal of Biomedical Materials Research Part A, and Journal of Biomedical Materials Research Part B. The two parts are published by John Wiley & Sons.

Part A

Journal of Biomedical Materials Research Part A was established in 2003. It is edited by James M. Anderson.

Abstracting and indexing
Part A is indexed and abstracted in the following bibliographic databases:

According to the Journal Citation Reports, the journal has a 2020 impact factor of 4.396, ranking it 25th out of 90 in the category 'Engineering, Biomedical' and 18th out of 41 in the category 'Materials Science, Biomaterials.

Part B

The Journal of Biomedical Materials Research Part B: Applied Biomaterials covers design, development, production, and application of biomaterials and medical devices. Publishing formats are original research papers, short reports, reviews, current concepts, special reports, and editorials. It is an official journal of the Society for Biomaterials, the Japanese Society for Biomaterials, the Australasian Society for Biomaterials, and the Korean Society for Biomaterials. The editor-in-chief is Jeremy L. Gilbert (Syracuse University).

Abstracting and indexing 
Part B is indexed and abstracted in the following bibliographic databases:

According to the Journal Citation Reports, the journal has a 2020 impact factor of 3.368, ranking it 43rd out of 90 in the category 'Engineering, Biomedical' and 27th out of 41 in the category 'Materials Science, Biomaterials.

References

External links 
 Part A
 Part B

Materials science journals
Biomedical engineering journals
Academic journals established in 2003
Wiley (publisher) academic journals
English-language journals
Mosquito Aviation XE. The Mosquito Aviation XE is a single seat homebuilt helicopter.

By 2015 Mosquito Aviation was out of business and the design was being produced by Innovator Technologies of Rockyview, Alberta, Canada. By 2019 the design was being produced by Composite FX of Trenton, Florida.

Design and development
The XE is a development of the Mosquito Air, with a cockpit fairing and a more sophisticated exhaust system, plus a rotor diameter increased by  to support the higher gross weight. The aircraft was designed to comply with the US Experimental – Amateur-built and European microlight aircraft rules. It features a single main rotor and tail rotor, a single-seat enclosed cockpit with a windshield, skid landing gear and a two-cylinder, air-cooled, two stroke  MZ 202 engine.

The aircraft fuselage is made from composites and metal tubing. Its two-bladed rotor has a diameter of  and a chord of . The aircraft has a typical empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload for the pilot and baggage is .

Variants
AIR
(2002) Open aluminum frame with tripod landing gear
XE
(2004)
XEL
XE with floats. Meets United States FAA FAR 103 Ultralight Vehicles rules for  and under for ultralight aircraft.
XE285 – Discontinued 
 Inntec 800 2 cylinder 2 cycle 
XE3 – Discontinued 
 CRE MZ 301 3 cylinder 2 cycle 
XE 290
 CFX 800 2-stroke, fuel injected, water cooled
XET
 Solar T62-2A1 turbine

Specifications (XE)

See also
Dynali H2S
Heli-Sport CH-7

References

External links

Homebuilt aircraft
2000s Canadian ultralight aircraft
2000s Canadian helicopters
Mosquito XE
Single-engined piston helicopters
Ultralight helicopters
Inhour equation. The Inhour equation used in nuclear reactor kinetics to relate reactivity and the reactor period. Inhour is short for "inverse hour" and is defined as the reactivity which will make the stable reactor period equal to 1 hour (3,600 seconds).  Reactivity is more commonly expressed as per cent millie (pcm) of Δk/k or dollars.

The Inhour equation is obtained by dividing the reactivity equation, Equation 1, by the corresponding value of the inhour unit, shown by Equation 2.

 [Equation 1]

 [Equation 2]

        ρ = reactivity

        l*= neutron generation time

        Tp= reactor period

        βi= fraction of delayed neutrons of ith kind

        λi= precursor decay constant of ith kind

For small reactivity or large reactor periods, unity may be neglected in comparison with λiTp and λi3600 and the Inhour equation can be simplified to Equation 3.

 [Equation 3]

The inhour equation is initially derived from the point kinetics equations. The point reactor kinetics model assumes that the spatial flux shape does not change with time.  This removes spatial dependencies and looks at only changes with times in the neutron population. The point kinetics equation for neutron population is shown in Equation 4.

 [Equation 4]

where k = multiplication factor (neutrons created/neutrons destroyed)

The delayed neutrons (produced from fission products in the reactor) contribute to reactor time behavior and reactivity. The prompt neutron lifetime in a modern thermal reactor is about 10−4 seconds, thus it is not feasible to control reactor behavior with prompt neutrons alone. Reactor time behavior can be characterized by weighing the prompt and delayed neutron yield fractions to obtain the average neutron lifetime, Λ=l/k, or the mean generation time between the birth of a neutron and the subsequent absorption inducing fission.  Reactivity, ρ, is the change in k effective or (k-1)/k.

For one effective delayed group with an average decay constant, C, the point kinetics equation can be simplified to Equation 5 and Equation 6 with general solutions Equation 7 and 8, respectively.

 [Equation 5]

 [Equation 6]

General Solutions

 [Equation 7]

 [Equation 8]

where

The time constant expressing the more slowly varying asymptotic behavior is referred to as the stable reactor period.

References

Nuclear reactors
Nano-PSI. Nano-PSI is a plasma device at the Differ  – Dutch Institute For Fundamental Energy Research () research institute in Eindhoven. It is used for experimental research at the junction of plasma physics and materials science. 'PSI' stands for Plasma Surface Interactions, while 'nano' has been chosen to stress the mission of the device to synthesize various nanostructures. Nano-PSI is the belongs to the family of plasma generators at DIFFER, that also hosts the Magnum-PSI and UPP-PSI linear devices.

The plasma is created by a Cascaded Arc Plasma Source, which exhausts into the spherical vacuum vessel. Gases such as Helium, Hydrogen, Nitrogen, Argon, Xenon can be used to create plasma. Samples are mounted in direct view of the plasma. The plasma species interact with the atoms of the sample, leading to surface modifications. In general this process is called plasma processing.

A Langmuir probe can be used to determine the plasma parameters, such as density and temperature. The substrate holder can be electrically biased to attract desired quantities of ions or electrons. Besides, it is possible to use a heated target holder or a cooled targetholder to mount the sample to a given temperature during operation. Large transient heat fluxes can be created when the plasma source is coupled to a capacitor bank.

See also
Chemical vapor deposition
Pulsed laser deposition
Gas discharge plasmas and their applications.
Semiconductor manufacturing; Plasma-enhanced chemical vapor deposition
National Spherical Torus Experiment in nuclear fusion

References

Further reading 

 
 
 

Plasma physics facilities
Murshidabad College of Engineering & Technology. Murshidabad College of Engineering & Technology (MCET), is a college located in Berhampore, West Bengal, India. It offers Bachelor of Technology (B.Tech.) at the undergraduate level operated under Maulana Abul Kalam Azad University of Technology, affiliated to All India Council for Technical Education (AICTE).

The college was established in 1998 with the approval of AICTE and affiliated to Kalyani University with 120 students in 3 disciplines. After six months, it was shifted to its own campus where the Laboratories, Workshops, Classrooms, Library, Computer Centers and Hostels are all currently located.

History 
The college was established with the help of Mr. Nripen Chowdhury, the then Sabhadhipati, Murshidabad Zill Parisad. On 8 August 1998 the formal inauguration was made by Dr. Asim Dasgupta, Ex- Minister-in-Charge, Finance, Government of West Bengal. The college was shifted to its present location and was formally started on 4 August 2001, by Mr. Buddhadeb Bhattacharjee, the then Hon'ble Chief Minister of West Bengal, This college getting financial help from TEQUIP.

Courses offered
B Tech:
Engineering - Civil Engineering
Engineering - Computer Science Engineering
Engineering - Information Technology It is stop after 2017,
Engineering - Electronics and Communication Engineering
Engineering - Electrical Engineering
BCA
BBA

Campus
The campus is located at Banjetia, around 4 km away from Berhampore, the district town of Murshidabad district, West Bengal, India.

Library
The institute possesses a library with textbooks, reference books, handbooks, Magazines, Journals, periodicals, etc. which has 11,000 books exclusively for B.Tech. students. There is a facility of "Book-bank" for SC/ST students sponsored by the Government of West Bengal.

See also

References

External links
 Handbook of Universities - Page 441
 West Bengal, beyond the millennium: essays in honour of Professor ... - Page 147
 1999 IEEE 13th International Conference on Dielectric Liquids
 Directory Of Libraries In India3rd Rev. Ed. Vol# 2 - Page 775
 Intro. to Linear & Digital Control Systems - Arun K Ghosh, Former Principal, MCET
 Intro. to Measurement & Instrumentation - Arun K Ghosh, Former Principal, MCET
 Introduction to Instrumentation and Control - Arun K Ghosh, Former Principal, MCET
 The city of Berhampore
 Schools in Murshidabad

Colleges affiliated to West Bengal University of Technology
Engineering colleges in West Bengal
Universities and colleges in Murshidabad district
Educational institutions established in 1998
1998 establishments in West Bengal
LCF II. The LCF II is a single seat Club Class glider, designed and built in the 1970s by German glider club members and intended to be suitable for training, competition and in particular aerobatics. Only one was completed.

Design and development
Design of the LCF II began in 1971, at the beginning of a decade that saw increasing interest in aerobatic glider flight. The intention was to produce a general purpose club glider, capable of being used as a trainer or in standard gliding competitions but also able to take the stresses involved in aerobatics. The manoeuvrability required for the latter requires the ability to fly slowly and to rotate rapidly, calling for relatively short spans. The LCF II has a span of 13 m (42 ft 8 in).

The straight tapered, square tipped wings of the LCF II are mounted at shoulder height and built around a single wooden spar. The ribs are formed from polyvinyl chloride rigid foam and the wings plywood covered. The wing mounts Schempp-Hirth type airbrakes, which extend from the upper surfaces.

The fuselage of the LCF II is built around a steel tube structure, covered by glassfibre in front and fabric covered aft, producing a tapering hexagonal cross section from the leading edge rearwards. A long, single piece canopy extends back almost to the leading edge, where it blends smoothly into the upper fuselage line. At the rear the tailplane is attached to the top of the fuselage; the vertical surfaces are straight tapered and square tipped. All rear surfaces are foam filled and ply covered. The LFC II has a fixed monowheel undercarriage, partly recessed into the fuselage, and a tailwheel.

It took five air club members about 4,000 hours to build the LCF II, which made its first flight on 22 March 1975.

Operational history
In 1975 the LCF II won first prize at the annual meeting of the Oskar-Ursinus-Vereinigung, the equivalent of the Experimental Aircraft Association. Plans were put in place for Scheibe Flugzeugbau to build the LCF II, but no orders were forthcoming and no Scheibe aircraft were constructed. It was intended that the LCF II should also be built by amateurs but it seems that, in the end, the prototype was only example of its type. This aircraft, registered D-6466, remained on the German civil register in 2010, listed as a Scheibe LCF II.

A second glider was built by Klaus Roth which was finished in 2012. German call sign is D-1622. Serial number: 002

Specifications

References

1970s German sailplanes
Glider aircraft
Aircraft first flown in 1975
Mageba (Swiss company). Mageba (stylised as mageba) is a civil engineering service provider and manufacturer of bridge bearings, expansion joints, seismic protection and structural monitoring devices for the construction industry. The company is headquartered in Bulach, Switzerland, and operates through offices in Europe, Americas and Asia Pacific. In all, mageba has official representations in over 40 countries.

History 

mageba was founded in 1963 in Bulach, Switzerland. By 1969 the company was designing and manufacturing a variety of bridge bearings and expansion joints, and had heavy duty testing facilities in operation. In 2004 the company merged with Proceq. The resulting company continued to design and manufacture bridge bearings and expansion joints.

In April 2011, mageba USA LLC was founded with offices in New York and San Jose. 
By then mageba had production facilities in Fussach (Austria), Shanghai (China), and offices in Uslar and Stuttgart (Germany) and Cugy (Switzerland). By 2012, the company had four facilities in India, and was also operating in Russia, South Korea, and Turkey.

mageba has supplied bearings and expansion joints to more than 10,000 bridges around the world, including the Audubon Bridge in Louisiana USA, Incheon Bridge in South Korea the Golden Ears Bridge in British Columbia, Canada(2009), the Bandra Worli Sea link in India, the Øresund Bridge which has linked Denmark and Sweden since 2000, and the Tsing Ma Bridge in Hong Kong.

mageba also installs and services bridge components.

A recent focus of activities of the firm has been the provision of structure surveillance services, including installation and remote monitoring of sensors, inspections and testing.

References & Publications

External links 
 https://www.mageba-group.com/global/ Mageba International Website
 https://www.mageba-group.com/us/ Mageba USA Website
 https://www.youtube.com/magebagroup Mageba's YouTube channel
 http://en.structurae.de/products/data/index.cfm?id=21 Structurae page

Civil engineering organizations
Manufacturing companies of Switzerland
Generalized Lagrangian mean. In continuum mechanics, the generalized Lagrangian mean (GLM) is a formalism – developed by  – to unambiguously split a motion into a mean part and an oscillatory part. The method gives a mixed Eulerian–Lagrangian description for the flow field, but appointed to fixed Eulerian coordinates.

Background

In general, it is difficult to decompose a combined wave–mean motion into a mean and a wave part, especially for flows bounded by a wavy surface: e.g. in the presence of surface gravity waves or near another undulating bounding surface (like atmospheric flow over mountainous or hilly terrain). However, this splitting of the motion in a wave and mean part is often demanded in mathematical models, when the main interest is in the mean motion – slowly varying at scales much larger than those of the individual undulations. From a series of postulates,  arrive at the (GLM) formalism to split the flow: into a generalised Lagrangian mean flow and an oscillatory-flow part.  

The GLM method does not suffer from the strong drawback of the Lagrangian specification of the flow field – following individual fluid parcels – that Lagrangian positions which are initially close gradually drift far apart. In the Lagrangian frame of reference, it therefore becomes often difficult to attribute Lagrangian-mean values to some location in space.

The specification of mean properties for the oscillatory part of the flow, like: Stokes drift, wave action, pseudomomentum and pseudoenergy – and the associated conservation laws – arise naturally when using the GLM method.

The GLM concept can also be incorporated into variational principles of fluid flow.

Notes

References

By Andrews & McIntyre

By others

 
  See Chapter 12: "Generalized Lagrangian mean (GLM) formulation", pp. 105–113.
 
 

Continuum mechanics
Concepts in physics
Space Chronicles. Space Chronicles: Facing the Ultimate Frontier is the 2012 anthology by Neil deGrasse Tyson covering his various writings relating to the history and future of NASA and space travel in general.

One of the chapters is a transcript of his attendance as a guest on the Rationally Speaking podcast in 2010, when he explained his justification for spending large amounts of government money on space programs.

Tyson intended the book's original title to be, Failure to Launch: The Dreams and Delusions of Space Enthusiasts.

References

American anthologies
2012 non-fiction books
Books by Neil deGrasse Tyson
Popular science books
W. W. Norton & Company books
Richard Moore (engineer). Richard Moore (November 13, 1923 – November 13, 2012) was an American radar engineer, professor emeritus of electrical engineering and computer science at the University of Kansas and founder of the Radar Systems and Remote Sensing Laboratory Lab (RSL).

He made significant research contributions to microwave remote sensing of atmosphere, ocean, land, ice, and planetary surfaces; radar systems; and radio wave propagation.

Moore graduated with a B.S. in E.E. from the McKelvey School of Engineering at Washington University in St. Louis in 1943 and from M.I.T. Radar School in 1945. In 1951, he earned his Ph.D. from Cornell University.

The same year Moore joined Sandia Corporation and became Section Supervisor. In 1955 he transferred to the University of New Mexico as Acting Chairman and associate professor, becoming Chairman of the EE Department and Professor the following year. In 1962 Moore became Black & Veatch Professor of Electrical Engineering at the University of Kansas.

The Radar Systems and Remote Sensing Laboratory Lab (RSL) was founded, with Prof. Moore as its director, in 1964. One of its early inventions was the radar radiometer and later the scatterometer. Such an instrument was flown on Skylab as the S-193 RADSCAT.

In 1994 Moore became Distinguished Professor Emeritus.

Moore died on his 89th birthday, November 13, 2012, in Lawrence, KS.

Awards
Australia Prize, for Remote Sensing, 1995
Remote Sensing Award, Italian Center, 1995
Fellow, American Association for the Advancement of Science, 1993
Life Fellow of IEEE (Fellow in 1962)
Member, National Academy of Engineering, 1989
Irvin Youngberg Award in the Applied Sciences, University of Kansas, 1989
Louise E. Byrd Graduate Educator Award, University of Kansas, 1984
IEEE Centennial Medal, 1984
Distinguished Achievement Award, IEEE Geoscience and Remote Sensing Society, 1982
Outstanding Technical Achievement Award, IEEE Council on Oceanic Engineering, 1978
Alumni Achievement Award, School of Engineering and Applied Science, Washington University, 1978

Professional Activities
Vice-chairman, International Commission F (1990-1993), Chairman (1993-1996)

See also
List of textbooks in electromagnetism

References

External links
 https://cresis.ku.edu/content/news/newsletter/2371

American electrical engineers
Members of the United States National Academy of Engineering
Fellows of the IEEE
Fellows of the American Association for the Advancement of Science
McKelvey School of Engineering alumni
Massachusetts Institute of Technology alumni
Cornell University College of Engineering alumni
University of Kansas faculty
IEEE Centennial Medal laureates
Australia Prize recipients
2012 deaths
Sandia National Laboratories people
1923 births
Muhammad Jamil Ahmad Mulla. Muhammad Jamil Ahmad Mulla (; born 12 December 1946) is a Saudi engineer who was minister of communications and information technology from 2003 to 2014.

Early life and education
Mulla was born in Madinah on 12 December 1946. 

Mulla is a graduate of King Saud University where he received a Bachelor of Science degree in electrical engineering in 1972. Then he obtained a Master of Science degree in telecommunications from the University of Colorado at Boulder in 1979. He also participated in various training programs in different countries.

Career
Mulla began his career at the ministry of post, telegraph and telephone in 1972, working initially as a radio engineer and then as an electrical engineer. Later he served as a Riyadh province manager and general manager of the central region for telecommunications. In June 2001, Mullah was named as the governor of the Saudi Telecom Authority. Next, he was appointed assistant deputy minister and then deputy minister of post, telegraph and telephone in charge of operation and maintenance affairs. He then became the governor of the Saudi communications commission.

Mullah was appointed minister of communications and information technology when the office established on 1 May 2003. His term ended on 8 December 2014 when Fahd bin Matad bin Shafaq Al Hamad was appointed to the post.

References

External links

20th-century Saudi Arabian engineers
21st-century Saudi Arabian engineers
21st-century Saudi Arabian politicians
1946 births
Living people
Electrical engineers
Communication ministers of Saudi Arabia
Information ministers of Saudi Arabia
King Saud University alumni
University of Colorado Boulder alumni
Rolandas Kalinauskas RK-6 Magic. The Rolandas Kalinauskas RK-6 Magic (or Magija) is a Lithuanian ultralight aircraft, designed and produced by Rolandas Kalinauskas, of Prienai. The aircraft is supplied as a complete ready-to-fly-aircraft.

Design and development
The RK-6 was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a strut-braced high wing, a tandem two-seat enclosed cockpit under a bubble canopy, fixed tricycle landing gear and a single engine in pusher configuration.

The forward fuselage is made from welded steel with a wooden laminate covering in the cockpit area, while the tailboom is made from aluminum tubing  The tail surfaces are constructed from aluminum tubing, are strut-braced and covered in Dacron sailcloth. The wings are wooden, produced by Arvydas Vaicekauskas and are equipped with Junkers-style flaperons with flap deflections of 20 and 40 degrees. Its wingspan is  and has an area of . The standard engine available is the  Rotax 582 two-stroke powerplant. The aircraft can also be flown without the canopy fitted, if desired.

Specifications (RK-6 Magic)

References

External links

2000s Lithuanian ultralight aircraft
Single-engined pusher aircraft