omniomni/omni-engineering huggingface dataset:
Henry Franken. Hendrik Marinus (Henry) Franken (born 1966) is a retired Dutch engineer, enterprise architect and co-founder and former managing director  of BiZZdesign, known for his work in the field of systems and control engineering, and business process management.

Biography 
Franken received his MA in Electrical Engineering in 1990 from the University of Twente. He specialized in systems and control engineering, and in 1994 received his PhD with a thesis entitled "Control system design for walking neuroprostheses."

After graduation Franken started as researcher at the Telematica Instituut, where from 1996 to 2001 he participated in the Testbed research project to develop a virtual test environment for business processes. In 2001 he founded BiZZdesign with  Harmen van den Berg and Harm Bakker In 2001 to 2003 he was also Enterprise architecture consultant for the ING Group. Since 2009 he chairs The Open Group ArchiMate Forum, a working group that guides the further development of the ArchiMate modeling languages.

Selected publications
Books:
 1994. Control system design for walking neuroprostheses. Thesis University of Twente.
 1996. On engineering support for business process modelling and redesign. Enschede : Centre for Telematics and Information Technology
 2005. Business Process Management (BPM) : procesinzicht en procesverbetering. With Martijn J. Tolsma. Enschede : BiZZdesign.

Articles, a selection:
 Franken, H. M., Veltink, P. H., Tijsmans, R., Nijmeijer, H., & Boom, H. B. (1993). "Identification of passive knee joint and shank dynamics in paraplegics using quadriceps stimulation." Rehabilitation Engineering, IEEE Transactions on, 1(3), 154-164.
 Quartel, D. A., Pires, L. F., Van Sinderen, M. J., Franken, H. M., & Vissers, C. A. (1997). "On the role of basic design concepts in behaviour structuring." Computer networks and ISDN systems, 29(4), 413-436.
 Franken, Henry M., and Wil Janssen. "Get a grip on changing business processes." Knowledge and process management 5.4 (1998): 208-215.
 Franken, H. M., Bal, R., den van Berg, H., Janssen, W., & De Vos, H. (2000). Architectural design support for business process and business network engineering. International Journal of Services Technology and Management, 1(1), 1-14.

References

External links 
 Henry Ffranken at bizzdesign.com/blog
  Henry Franken over Enterprise Architectuur at xr-magazine.nl

1966 births
Living people
Dutch engineers
Enterprise modelling experts
University of Twente alumni
Taylorcraft F-21. The Taylorcraft F-21 is a high-wing American-built certified light aircraft developed from earlier Taylorcraft designs.

Development
The Taylorcraft F-21 is a single-engine, high-wing, conventional-gear aircraft. It was developed from the earlier F-19 model with a larger 118 hp engine and an updated FAA-type certificate.

Production
43 examples of the F-21 basic design were built between 1980 and 1990. These were designated the F-21, F-21A and F-21B, with minor changes in design.

Operational history
 A 1988 Taylorcraft F-21 was displayed as an award in the Stardust Casino, Las Vegas. Per the U.S. Civil Aircraft Register, 34 F-21 models were active with private pilot owners in 2014, of which 18 were F-21, 3 were F-21A and 13 were F-21B models.

Variants

F-21
Conventional gear with 118 h.p. Lycoming O-235-C engine. 1,500 lb TOGW. 22 built 1980-1985.
F-21A
F-21 with fuselage fuel tank deleted and 40 gal fuel capacity in two wing tanks. 6 built 1982-1984.
F-21B
F-21 with 42 gal total fuel capacity and 1,750 TOGW. New wing spars and aluminium under-fuselage skinning. 15 built 1985-1990.

A further development was the F-22:
F-22A
Tricycle gear
F-22C STOL 180
Tricycle gear 180hp - 1 built

Specifications (F-21B)

See also

References

Bibliography

Simpson, R.W., The General Aviation Handbook, 2005, Midland Publishing, Hinckley, 
 

F-21
1980s United States civil utility aircraft
Single-engined tractor aircraft
High-wing aircraft
Aircraft with fixed conventional landing gear
Elmwood Christavia Mk I. The Christavia Mk I is a Canadian two-seats in tandem homebuilt aircraft designed by Ron Mason. The aircraft is supplied in the form of plans for amateur construction. Designed for missionary flying in Africa, the aircraft's name means "Christ-in-Aviation". The Christavia Mk II is a side-by-side configuration version.

The Christavia Mk I was first completed and registered as a Christavia CA-05 with Transport Canada on October 1, 1981 and first flew in 1982. Over 350 had been completed and flown by 2002.

Design and development
The Christavia is a single engine, high wing, conventional landing gear-equipped aircraft. The fuselage is of 4130 steel tube construction. The wings are flapless, predominantly wooden, use a custom Mason airfoil design and are supported by dual wing struts. The exterior is finished with aircraft fabric covering. The acceptable power range is  and the standard powerplant used is the  Continental A65 four stroke four cylinder horizontally opposed piston aircraft engine.

Plans are marketed by Aircraft Spruce & Specialty Co. Ron Mason sold the rights to the Christavia series of aircraft to Aircraft Spruce and no longer supplies the plans or support.

The designer estimated the construction time as 2000 hours.

Operational history

In January 2016 forty-two examples of the Christavia series of aircraft were registered with Transport Canada and sixty-one in the United States with the FAA.

Variants
Christavia Mk I
Two seat seats in tandem model.
Christavia Mk II
Two seat side-by-side model, with otherwise similar specifications to the Mk I.
Christavia Mk IV
Four place model with  engine recommended.

Specifications (Christavia Mk I)

See also

References

External links

Christavia Mk I
Homebuilt aircraft
1980s Canadian sport aircraft
1980s Canadian civil utility aircraft
Single-engined tractor aircraft
High-wing aircraft
Aircraft first flown in 1982
Aircraft with fixed conventional landing gear
Elmwood Christavia Mk IV. The Christavia Mk IV (Christ-in-Aviation) is a Canadian homebuilt aircraft that was designed by Ron Mason and produced by Elmwood Aviation of Frankford, Ontario (formerly in Belleville, Ontario). The aircraft is supplied in the form of plans for amateur construction.

Design and development
Designed for African missionary work the Mark IV is a development of the Christavia Mk I, with greater wingspan, a longer fuselage and two additional seats. The aircraft features a strut-braced high-wing, a four-seat enclosed cabin with doors, fixed conventional landing gear and a single engine in tractor configuration.

The aircraft fuselage is made from welded 4130 steel tubing, while the wing is of all-wooden construction, with all surfaces covered with doped aircraft fabric. Later models have an aluminum wing spar. Its  span wing employs a custom Mason airfoil, mounts flaps and has a wing area of . The wing is supported by "V" struts with jury struts. The standard engine used is the  Lycoming O-320 powerplant.

The Christavia Mk IV has a typical empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload for crew, passengers and baggage is .

Plans are marketed by Aircraft Spruce & Specialty Co. Ron Mason sold the rights to the Christavia series of aircraft to Aircraft Spruce and no longer supplies the plans or support. The designer estimates the construction time from the supplied plans as 2600 hours.

Operational history
By 1998 the designer reported that 250 examples were flying.

In December 2016 five examples were registered in the United States with the Federal Aviation Administration and eight with Transport Canada.

Specifications (Christavia Mk IV)

References

External links

Christavia Mk IV
1980s Canadian civil utility aircraft
Single-engined tractor aircraft
High-wing aircraft
Homebuilt aircraft
Aircraft with fixed conventional landing gear
Parietal reach region. The parietal reach region (PRR) is a region within the posterior parietal cortex of the macaque brain that is stimulated through reaching for an object.  The PRR was initially proposed by Andersen and Buneo, but they just generally explored the idea as postural modulations.  Dr. Steven Chang went further in depth by showing the receptive fields of PRR neurons are multiplicatively stimulated through the combination of initial gaze position and initial hand position.   This multiplicative stimulation is known as gain-field encoding.  The parietal reach region uses gain-field encoding to calculate the amount of hand displacement needed to reach for an object. A recent study  shows that neurons in PRR encodes not only the planned physical movement, but also the anticipated visual sensory consequence of the intended movement once the action is unfolded in time.

References

Cerebral cortex
Parietal lobe
Miguel Torres Díaz. Miguel A. Torres Díaz born in Fajardo, Puerto Rico is a licensed civil engineer and a former Secretary of Transportation and Public Works of Puerto Rico. Torres previously served as President of the Puerto Rico Professional College of Engineers and Land Surveyors from 2009 to 2012, and possesses a bachelor's degree in civil engineering and a master's degree in general engineering both from the Polytechnic University of Puerto Rico. He is a certified arbitrator as well, possessing a certification to exercise such profession from the Supreme Court of Puerto Rico.

Notes

References

Living people
Members of the 16th Cabinet of Puerto Rico
People from Fajardo, Puerto Rico
Puerto Rican civil engineers
Secretaries of Transportation and Public Works of Puerto Rico
Year of birth missing (living people)
20th-century Puerto Rican engineers
21st-century Puerto Rican engineers
Warbirds. Warbirds may refer to:

 Warbird, any vintage military aircraft now operated by civilian organizations and individuals or historic arms of military forces
 Warbirds (video game), a 1991 computer game for the Atari Lynx
 WarBirds, a 1995 online computer game by Interactive Creations
 Warbirds (EP), a 2009 EP by This Is Hell
 Romulan Warbird, a class of ship in the Star Trek universe
 Seattle Warbirds, a team in the Women's Football Alliance
 Wilson Warbirds, a Minor League Baseball team
Mehdi Jomaa. Mehdi Jomaa (; born 21 April 1962) is a Tunisian engineer and was the acting Prime Minister of Tunisia from 29 January 2014 to 6 February 2015.  He was chosen on 14 December 2013. Jomaa was Minister of Industry in the Ali Laarayedh government.

Early life 
He was born on 21 April 1962 in Mahdia, Tunisia. He graduated from the National Engineering School, Tunis in 1998. He is an engineer by profession. He also holds a postgraduate degree in structural mechanics and in modeling. He spent most of his career at Hutchinson and at Total. He is married and has five children. He was a general manager at Hutchinson Aerospace when he quit his job.

Political life 
After Hamadi Jebali asked him to be part of his government, he quit his professional career to contribute to the country's transition into democracy after the crackdown of Zine El Abidine Ben Ali government in the 2011 uprising. He did not belong to any political party; he was an Independent. On 13 March 2013, he became Minister of Industry in a coalition government led by Ennahda after Ali Laarayedh appealed him to be part of his government. After the assassination of Mohamed Brahmi in July, there had been a political deadlock. To ease the situation, parties entered a national dialogue which was held for weeks; on 14 December 2013, both ruling and opposition parties agreed to choose Jomaa as the interim Prime Minister until the next election. His government was technocratic. The leftist Popular Front coalition doubted whether he could handle the present situation. His caretaker government carried out the process for new elections and attempted to deal with the economic issues.

After Habib Essid became Prime Minister in February 2015, Mehdi Jomaa spent a year away from political life until in early February 2016 he announced the formation of a think-tank and political program dubbed "Tunisia Alternatives". A year later, in March 2017, he converted Tunisia Alternatives into a political party.

References

External links

1962 births
Living people
Tunis El Manar University alumni
Prime ministers of Tunisia
Industry ministers of Tunisia
Tunisian Muslims
People from Mahdia
20th-century Tunisian people
21st-century Tunisian people
Candidates for President of Tunisia
Tunisian Alternative politicians
Grand Crosses 1st class of the Order of Merit of the Federal Republic of Germany
St-Just Aviation. St-Just Aviation is a Canadian aircraft manufacturer based in Boucherville, Quebec, a suburb of Montreal. The company specializes in the design and manufacture of aircraft kits for bushplane operations, based on Cessna designs. The company was originally located in Mirabel.

By 2023 the company had ceased business and the Super Cyclone kit production moved to Bushliner Aircraft Manufacturing of Granite Falls, Washington, who were building it under the name Bushliner 1850EX.

Aircraft

References

External links
Official website archives on Archive.org

Aircraft manufacturers of Canada
Homebuilt aircraft
Companies based in Boucherville
Lavender Pond. Lavender Pond is a 2.5 acre local nature reserve in Rotherhithe in the London Borough of Southwark. It is owned by Southwark Council and managed by The Conservation Volunteers. The nature reserve has an area of woodland as well as the pond.

History
The site is in the northern end of the former Surrey Commercial Docks. The pond is a small part of the much larger former Lavender Pond, where timber was floated to prevent it drying and cracking. In 1928 the entrance to the pond was blocked when the Port of London Authority built the Pumphouse on the site to control the water levels in Surrey Docks. In 1970 the Docks were closed. The area became neglected and the pond was filled in, but in 1981 the pond was re-created as part of a nature reserve.

Ecology
The reserve has the small wildlife pond, wet meadows and native trees have been planted in the woodland area. As well as an area for wildlife, the reserve aims to be a haven for local residents and an educational resource. Some areas are left undisturbed while others are used by schoolchildren.

Pumphouse Educational Museum
The Pumphouse Educational Museum was located in the former pumphouse adjacent to the pond, and housed the Rotherhithe Heritage Museum and artefacts from the Thames shore from Roman times onwards. The museum was closed by the local council in 2011.

Access
The pond is unfenced and there is access from Lavender Road and Salter Road, but the wood is kept locked and there is no public access.

References

External links
 Friends of Lavender Pond 
 The Pumphouse Educational Museum

Local nature reserves in Greater London
Nature reserves in the London Borough of Southwark
9,10-Dihydroanthracene. 9,10-Dihydroanthracene is an organic compound that is derived from the polycyclic aromatic hydrocarbon anthracene.  Several isomers of dihydroanthracene are known, but the 9,10 derivative is most common.  It is a colourless solid that is used as a carrier of H2 as a hydrogen-donor.

Preparation
Because the aromaticity is not compromised for the flanking rings, anthracene is susceptible to hydrogenation at the 9- and 10- positions.  It is produced in the laboratory by dissolving metal reduction using sodium/ethanol, an application of the Bouveault–Blanc reduction. The reduction can be effected by magnesium as well.  Finally, it can also be prepared by the coupling of benzyl chloride using aluminium chloride as a catalyst.

The bond dissociation energy for the 9- and 10- carbon–hydrogen bonds are estimated at 78 kcal mol−1.  Thus these bonds are about 20% weaker than typical C–H bonds.

See also
 Triptycene — analogue with three phenyl rings

References

Anthracenes
Nalla Narasimha Reddy Education Society's Group of Institutions. Nalla Narasimha Reddy Education Society's Group of Institutions, Hyderabad (NNRG Hyderabad) is a autonomous college, focusing on engineering,pharmacy and management studies located in Hyderabad, India.

History
Founded in 2009 by Nalla Narasimha Reddy, the organization has the primary objective of educating young people to prepare them for national and international requirements, to fund the needy and to promote research in science and technology. An "Integrated Contiguous Campus" with multi-disciplinary Technical, Engineering, Pharmacy and Management programs under the banner of Nalla Narasimha Reddy Education Society's (NNRES) Group of Institutions has been created.

The college is situated at Narapally. It can accommodate about 600 students.

Academics
An institution with academic and research-oriented courses, the B.Tech. programs (undergraduate programs) number about 6. Major branches among them are Computer Science and Engineering, Information Technology, Electronics and Communication, Electrical and Electronics, Mechanical, and Civil. The postgraduate programs namely M.Tech., MBA, MPharm and MCA.

Departments
 Electronics and Communication Engineering
 Electrical and Electronics Engineering
 Civil Engineering
 Computer Science & Engineering
Information Technology
 Mechanical Engineering
 Pharmacy
Masters of Business Administration

See also 
Education in India
Literacy in India
List of institutions of higher education in Telangana

References

NNRES
Careers 360

External links
NNRES Hyderabad website

Universities and colleges in Hyderabad, India
2009 establishments in Andhra Pradesh
Educational institutions established in 2009
Jawaharlal Nehru Technological University
Ridley Bridge. Ridley Bridge is a stone arch road bridge over the River South Tyne near Ridley Hall in Northumberland.

History
This stone arch bridge was designed by Robert Mylne and constructed in 1792. It has been listed Grade II* by Historic England.

References

Bridges in Northumberland
Crossings of the River Tyne
Grade II* listed bridges in England
Grade II* listed buildings in Northumberland
Farshad Fotouhi. Farshad Fotouhi (born 1957) is the dean of Wayne State University's college of engineering. Farshad Fotouhi joined Wayne State University in 1988 as faculty in the Department of Computer Science. From 2000 to 2004, he was associate chair of the department, and from 2004 to 2010 he was chair.

Life and career

Schooling and research
He holds a bachelor's in Computer Science from Western Michigan University and a Ph.D. in Computer Science from the College of Engineering at Michigan State University.

Fotouhi's research includes biomedical informatics, multimedia systems and the Semantic Web. He has published more than 190 papers in academic journals and conference proceedings.  His research has been supported by the National Science Foundation, the National Institutes of Health, the National Institute of Drug Abuse, Michigan Life Sciences Corridor, as well as Ford Motor Company and other companies.

He has been a program committee member for various conferences related to his research interests and is a member of the editorial board of IEEE Multimedia Magazine, chair of the Steering Committee of IEEE Transactions on Multimedia, and a member of the editorial board of the International Journal of Semantic Web and Information Systems. In recent years, Dr. Fotouhi has organized several workshops including the Workshop on Privacy in Information Society, the IEEE Workshop on Scientific Workflow, and the ACM workshop on the Many Faces of Multimedia Semantics.

He was appointed dean of Wayne State University's college of engineering in March 2011.

See also
 Wayne State University
 List of Wayne State University people

References

External links
Fotouhi's official website at Wayne State University 

Wayne State University faculty
American computer scientists
Database researchers
Western Michigan University alumni
Michigan State University alumni
Living people
1957 births
Carpenter's axe. Carpenter's axes or carpenter's hatchets are small axes, usually slightly larger than a hatchet, used in traditional woodwork, joinery, and log-building. They have pronounced beards and finger notches to allow a "choked" grip for precise control.

Carpentry axes have straight, long cutting edges and thin blades with a low bevel angle, making them ideal for working with dry wood. These axes also have straight handles, as the curved handles typical of felling and chopping axes would get in the way of the smaller, more precise cuts that carpenters would tend to make. These features allow carpenter's axes to be capable of detailed work such as cutting a plank's end to a desired angled with a planed surface and even rudimentary woodcarving.

The long straight edge of carpentry axes provides a good degree of stability when cutting as well as being the ideal shape for guiding the blade by eye.

The poll, or butt, is generally designed for use as a hammer. Newer carpenter's axes will often have a groove for pulling nails.

Use in Japanese carpentry 
In traditional Japanese architecture, wood is the primary building material, as opposed to the western tradition of using stone and brick. Therefore, in the construction of buildings, carpentry axes are vital for quickly removing large amounts of wood in the initial stages of building, such as the construction of columns and support structures. Japanese carpentry axes have wooden handles that are fitted to a socket and have laminated steel blades, which have two different steels: a harder steel for the cutting edge, with a more soft and flexible steel for the back portion of the head.

Sources

External links 

Axes

bar:Beil
da:Økse
hu:Balta
Chatkalite. Chatkalite is a copper, iron, tin sulfide mineral with formula Cu6Fe2+Sn2S8. It crystallizes in the tetragonal crystal system and forms as rounded disseminations within tetrahedrite in quartz veins.

Physical properties

Chatkalite can have sizes ranging from rounded grains of about 100 micron when found within a tetrahedrite. It has a metallic luster, a hardness of 274 on the Vickers scale and a hardness of 4.5 on the Mohs scale. It has a color of pale rose in reflected light with no internal reflection. Its diaphaneity can be described as opaque. It does not exhibit any cleavage or twinning properties. Chatkalite is anisotropic which is characteristic of the stannite group. Its anisotropic intensity is a weak shade of brown.

Occurrences

Chatkalite was first located in the sulfide bearing quartz veins of the Chatkal-Kuramin Mountains in eastern Uzbekistan in 1981. Chatkalite has also been located in few other places since then namely Ubertad Mine, Quirulvica Province of Santiago de Chuco, Peru, Mine McCoy, McCoy district, Lander County, Nevada US and Eugenia Maria Vein, Cerro Shortcut, Catamarca, Argentina. A few other minerals are also closely associated to chatkalite based on locality, these are cassiterite, hermisite and hessite.

Unique characteristics

One of the rare characteristic of chatkalite is the fact that it has quaternary Bravais lattice metric singularity along with mawsonite. This means that there are four different lattices with three different symmetries that are all consistent with the same set of d spacings. The mineral chatkalite and mawsonite are considered highly specialized because they can produce cubic I tetragonal P, orthorhombic F, and orthorhombic P lattices.

Etymology

Chatkalite was discovered in 1981 around the Chatkal Mountains of Uzbekistan in an unknown locality. It was given the name chatkalite because of this region where it was discovered.

References

Further reading

Anthony, J. W. (19902003). Handbook of mineralogy. Tucson, Ariz.: Mineral Data Pub.
Bohmer, H. (1964). Introduction. Mineralogy of the tetrahedrite series (p. 12). Ann Arbor : UMI Dissertation publishing.
Chatkal valley. (n.d.). . The nature that could steal your heart. Retrieved November 3, 2013, from https://web.archive.org/web/20131216042007/http://www.people-travels.com/uzbekistan-cities/tashkent/chatkal.html

Sulfide minerals
Tetragonal minerals
Minerals in space group 115