omniomni/omni-engineering huggingface dataset:
Alder & Derryberry A. The Alder & Derryberry A is an American three-seat single-engine parasol monoplane sporting and training aircraft.  It was manufactured by C Alder & L E Derryberry in Abilene, Texas in 1935. The powerplant was identified as a Ford Model A engine.

Aircraft on display 
Sometime prior to 1980, the sole example was acquired disassembled and was stored in Tulsa as one of many pending restoration projects, however, after the owner suffered a stroke in 2004, the A-D was resold and restored to flying condition, receiving its certificate of airworthiness in 2008, before being donated to the city of Abilene in 2011, who have it on display at the local airport.

Specifications (Alder & Derryberry model A)

References

Citations

Bibliography

Homebuilt aircraft
Parasol-wing aircraft
RIPAC (microprocessor). RIPAC was a VLSI single-chip microprocessor designed for automatic recognition of the connected speech, one of the first of this use.

The project of the microprocessor RIPAC started in 1984. RIPAC was aimed to provide efficient real-time speech recognition services to the italian telephone system provided by SIP. The microprocessor was presented in September 1986 at The Hague (Netherlands) at EUSPICO conference. It was composed of 70.000 transistors and structured as Harvard architecture.

The name RIPAC is the acronym for "Riconoscimento del PArlato Connesso", that means "Recognition of the connected speech" in Italian. The microprocessor was designed by the Italian companies CSELT and ELSAG and was produced by SGS: a combination of Hidden Markov Model and Dynamic Time Warping algorithms was used for processing speech signals. It was able to do real-time speech recognition of Italian and many languages with a good affordability. The chip, issued by U.S. Patent No. 4,907,278, worked at first run.

References

Bibliography 
 
 
 R. Cecinati, A. Ciaramella, L. Licciardi, M. Paolini, R. Tasso, & G. Venuti (1990). U.S. Patent No. 4,907,278. Washington, DC: U.S. Patent and Trademark Office.

Application-specific integrated circuits
Digital signal processors
Speech recognition
Speech recognition hardware
Ramya Sathianathan Polytechnic and B.Ed College. Ramya Sathianathan Polytechnic and B.Ed College is a private college in Pudhupatti, India. It offers Diploma Courses and B.Ed.

History 
The school was co-founded by Civil Engineer R. Sathianathan, B.E. He had helped many of his friends and customers to construct buildings for them to start Schools and Colleges. His wife and co-founder Janet Ramya helped ensure that students were held to high standards of discipline, academic excellence and personal hygiene.

In honour of his parents, they formed a registered Trust to support the school in 2010.

The pair established two Colleges to educate underprivileged youth. The Technical Institution was named Ramya Sathianathan Polytechnic College in 2011 at Pudupatti Village. The second institution was Ramya Sathianathan College of Education in 2012 on the same campus.

Courses offered 
UG Courses
 Diploma in Automobile Engineering
 Diploma in Civil Engineering
 Diploma in Electronics and Communication Engineering
 Diploma in Electrical and Electronics Engineering
 Diploma in Mechanical Engineering

Subjects offered in B.Ed.
 Tamil
 English
 Mathematics
 Physical Science
 Biological Science
 History
 Geography
 Economics
 Commerce
 Computer Science

Facilities
 Well Equipped Modern Laboratories
 Hostel
 Transport
 Cafeteria
 Library

Other institutions
 Ramya Sathianathan Vidhyashram CBSE School

References

Education in Thanjavur district
Colleges in Tamil Nadu
Colleges of education in India
Ian Firth. Ian Firth is a British structural engineer and bridge designer.

Early life and education 
Born in Sussex into a Royal Navy family, Firth was a chorister at Winchester Cathedral before going to Marlborough College and then to the University of Bristol where he secured a First Class Honours degree in Civil Engineering in 1979.

Career 
Firth joined specialist consulting engineers Flint & Neill in London upon graduation, and initially worked on a variety of projects including tall radio masts and towers, chimneys and steel buildings, as well as the aerodynamic stability of box girder bridges. He then attended Imperial College and obtained a further degree in Structural steel Design in 1982. Returning to Flint & Neill, he worked on the complex strengthening and upgrading of the Wye Bridge, a steel box girder cable-stayed bridge and part of the M48 Severn crossing. Since then he has directed several other similar projects involving strengthening of such structures, including the Erskine Bridge in Scotland and the West Gate Bridge in Australia. His other work on major long span bridges includes the independent design checks and investigations for the Tsing Ma Bridge, Kap Shui Mun Bridge and Ting Kau Bridge, all in Hong Kong. He was appointed as special advisor to the client for the longest span of them all, the Strait of Messina Bridge in Italy, which when built will have a main span of 3,300m.

Firth led the team which won the Poole Harbour Crossing bridge design competition in 1997, working with Danish architects Dissing+Weitling, and has subsequently won many other bridge design competitions. These include Lockmeadow Bridge in Maidstone, the Bridge of Aspiration for the Royal Ballet School in London, the River Oise bridge in Compiègne, France, the Pont Schuman in Lyon, France, and Inderhavnsbroen in Copenhagen.

He became partner in Flint & Neill in 1990, and when the firm joined COWI in 2008 he was appointed a director. He retired from full-time employment in 2018 and now works as a consultant, continuing to provide bridge design and engineering advice, training and education.

Firth was president of the Institution of Structural Engineers in 2017 and is chairman of the British Group of the International Association for Bridge and Structural Engineering. He is also a trustee of bridge building charity Bridges to Prosperity.

Awards and honours 
Firth is an Honorary Fellow of the Royal Institute of British Architects.

Selected projects 
 Lockmeadow Bridge, 1999
 Halgavor Bridge, 2001
 Swansea Sail Bridge, 2003
 River Oise Bridge, Compiègne, 2011
 Third Way Bridge, 2011
Inderhavnsbroen Copenhagen, 2009 – 2016

See also
 Messina Bridge
 Floating suspension bridge

References

External links
  Ian Firth

Living people
Presidents of the Institution of Structural Engineers
British bridge engineers
British structural engineers
People from Sussex
1956 births
GE Renewable Energy. GE Renewable Energy was a manufacturing and services division of the American company General Electric. It is headquartered in Boulogne-Billancourt, near Paris, France and focuses on the production of energy systems that use renewable sources. Its products include wind (onshore and offshore), hydroelectric and solar (concentrated and photovoltaic) power generating facilities.

In 2024, GE Renewable Energy and GE Power merged to create GE Vernova, a company completely independent of General Electric, which ceases to exist as a conglomerate (refocusing on aerospace as GE Aerospace).

History
GE Renewable Energy was created in 2015, combining the wind power assets GE purchased from Alstom with those previously owned by GE and operated under the Power & Water division. Upon the division's creation, the headquarters of GE Renewable Energy moved from Schenectady, New York to Paris, France, part of conditions for the Alstom purchase.

In 2021 plan to splitting GE into three new public companies: GE Vernova, GE HealthCare and GE Aerospace was announced. GE Renewable Energy, along with GE Digital, GE Power, and GE Energy Financial Services will come together as GE Vernova.

In 2023, GE announces planned spin-off date for beginning of second quarter of 2024.

Subdivisions

Wind

GE Wind was formed out of the assets of Enron Wind purchased in 2002, and subsequently expanded with the purchase of ScanWind in 2009. GE Wind expanded into offshore wind energy with the purchase of Alstom's energy generation assets (GE Offshore Wind, formerly Alstom Wind) in 2015.

GE Wind subsidiaries :

 GE Vernova's Onshore Wind Business, headquartered in Schenectady, New York
 GE Offshore Wind, headquartered in Nantes, France
 LM Wind Power, headquartered in Kolding, Denmark

Hydro
The GE Renewable Energy Hydro, a sub-division of GE Renewable Energy, is involved in hydroelectricity generation. This includes the design, manufacture, and installation of equipment for both gravity fed and pumped-storage power plants, and as upgrades to existing hydroelectric plants.

GE Renewable Energy Hydro has developed aerating turbines designed to increase the amount of oxygen in water passing through the turbines, to benefit the aquatic life downstream.

GE Renewable Energy Hydro's headquarters are in Grenoble, France.

Grid Solutions 
GE Grid Solutions business encompasses the high-voltage power grid equipment and engineering activities of Alstom's former subsidiary, Alstom Grid, which itself was spun off from the transmission business of Areva T&D, a former subsidiary of the French multinational Areva.

GE Grid Solutions's headquarters are in Boulogne-Billancourt, France.

See also 
 General Electric
 GE Offshore Wind (former Alstom Wind)
 GE Wind Energy
 LM Wind Power
 Alstom

References

External links

General Electric subsidiaries
Monique Teillaud. Monique Teillaud is a French researcher in computational geometry at the French Institute for Research in Computer Science and Automation (INRIA) in Nancy, France. She moved to Nancy in 2014 from a different INRIA center in Sophia Antipolis, where she was one of the developers of CGAL, a software library of computational geometry algorithms.

Teillaud graduated from the École Normale Supérieure de Jeunes Filles in 1985, she then got a position at École nationale supérieure d'informatique pour l'industrie et l'entreprise before moving to Inria in 1989. She completed her Ph.D. in 1991 at Paris-Sud University under the supervision of Jean-Daniel Boissonnat. 
She was the 2008 program chair of the Symposium on Computational Geometry.
She is also the author or editor of two books in computational geometry:
Towards Dynamic Randomized Algorithms in Computational Geometry (Lecture Notes in Computer Science 758, Springer, 1993)
Effective Computational Geometry for Curves and Surfaces (edited with Boissonat, Springer, 2007)

References

External links

Living people
French computer scientists
French mathematicians
French women computer scientists
French women mathematicians
Researchers in geometric algorithms
1961 births
Klavdy Ippolitovich Shenfer. Claudius Ippolitovich Shenfer (; 26 May 1885 -   18 May 1946) was a Soviet scientist in the field of Electrical engineering, professor, academician of the USSR Academy of Sciences.

Biography 
He was born in 1885 in the Radviliškis.

In 1904, he entered the Warsaw Polytechnic Institute. During the February Revolution of 1905-1907, he moved to Moscow. Two years later, he entered the mechanical department of the Imperial Moscow Technical School.

In 1911-1912, he was on a scientific mission in Germany, where he worked on experimental research questions on the commutation of collector machines of alternating current. Returning to Russia, he taught at the university.

Since 1930, he worked as a teacher at the Moscow Power Engineering Institute. Shenfer transferred 100,000 rubles to the Defense Fund during the Great Patriotic War.

He dealt with the theory and design of electrical machines (switching work in collector electrical machines, cascade schemes, transient regimes, electricity recovery). He is the author of textbooks on electric machines.

Awards and prizes: The Stalin Prize of the first degree (1943) - for many years of outstanding achievements, the Order of Lenin (1945), and the Order of the Red Banner of Labor (1940).

Literature 
 "Collector motors of alternating current", 1933.
 "Dynamos and DC motors", 1937.
 "Asynchronous machines", 1938.

References 

Moscow Power Engineering Institute alumni
Soviet engineers
Recipients of the Stalin Prize
1885 births
1946 deaths
Mikhail Vasilyevich Shuleikin. Mikhail Vasilyevich Shuleikin (; 21 October 1884 - 7 July 1939) was a Soviet scientist in the field of Radio-frequency engineering, professor, academician of the USSR Academy of Sciences.

Biography 
He was born in 1884 in Moscow, the son of a merchant - the owner of a wallpaper factory and two stores.

In 1908 he graduated from the St. Petersburg Polytechnic Institute, received a diploma of an electrical engineer and was left at the institute as a junior laboratory assistant of an electromachine laboratory for specialization in radio engineering. From 1908 to 1909 he served in the Army.

From 1914 to 1918 he taught at the Petrograd Polytechnic Institute, taught courses: "collector motors", "radiotelegraph generators" and directed the diploma design of radio telegraph stations and high frequency machines.

In 1913-1918 he worked at the Radiotelegraph Plant of the Maritime Department, where he organized the first factory in Russia for manufacturing radio engineering measuring instruments.

From 1919, he headed the departments of radio engineering in a number of Sovet institutes, including: Institute of National Economy. G.V. Plekhanov, Military Electrotechnical Communication Academy, Moscow Electrotechnical Institute of Communications, V.N. Podbelsky and Moscow Power Engineering Institute.

On 1 February 1933, he was elected a corresponding member of the USSR Academy of Sciences in the Department of Mathematics and Natural Sciences, 28 January 1939 - full member (academician) of the USSR Academy of Sciences in the Division of Technical Sciences (specialty - radio engineering).

Literature 
 Proceedings on the propagation of radio waves in the upper layers of the atmosphere.
 Proceedings on the theory of long-wave antennas.
 Der Empfang Elektrischer Wellen in der Drahtlosen ... Waves in the Wireless Telegraphy" Annalen der Physik IV, 25, 1908

References 

Academic staff of Moscow Power Engineering Institute
Peter the Great St. Petersburg Polytechnic University alumni
Soviet engineers
1884 births
1939 deaths
Burials at Novodevichy Cemetery
Yitzhak Mastai. Yitzhak Mastai (Hebrew: יצחק מסתאי) is a chemistry professor at Bar Ilan University, specializing in chirality at the nanoscale and in nanotechnology.

Biography
Mastai was born in 1966 in Tel Aviv-Yafo. He obtained his B.Sc. in physical chemistry from Bar-Ilan University in 1989, and in 1999, received his PhD from the Weizmann Institute of Science under the supervision of Prof. Gary Hodes on Nanomaterial Synthesis. He then spent three years as a post-doctoral Fellow at the Max Planck Institute of Colloids and Interfaces, working with both Prof. Markus Antonietti and Prof. Helmut Cölfen on Biomimetic Chemistry and Chiral Polymers.
In 2003 he joined the staff of the Chemistry Department at Bar Ilan, where he currently holds the position of a Professor of Nanotechnology and Chemistry, leading the Chirality Nanoscale laboratory.

Mastai is married to Dina von Schwarze-Mastai, a senior clinical psychologist and a distinguished translator of German-Hebrew poetry. Dina and Yitzhak have three children.

Scientific interests and publications
Mastai's earlier interests included nanomaterial synthesis
especially Sono (electro), the Chemical Synthesis of Semiconductors and Fullerene-like Nanoparticles, and Nanomaterial characterization.
His current research focuses on Nanoscale Chirality, Synthesis and Analysis of Chiral Nanosurfaces, Chiral self-assembled Monolayers (SAM), and Polymeric Chiral Nanoparticles. Mastai and his colleagues, have gained international reputation in these fields, and have pioneered several new concepts and techniques in the following areas: (1) SAM's for the preparation of Chiral Nanosurfaces for Chiral resolution by crystallization. (2) Chiral ordered Mesoporous silica by Chiral polymer -Templated Synthesis. (3) An innovative new Carbon Chiral Mesoporous, based on the Carbonization of Chiral Ionic liquids. (4) The development of Optical Scanning Microscopy (NSOM). (5) Isothermal Titration Calorimetry (ITC) for the determination of Nanoscale Chirality.

He has over 200 peer-reviewed articles in print, which were cited nearly 9,000 times. Mastai has published many book chapters and edited 3 books on various aspects of nanomaterials and materials science.

Among his previous awards were the Minerva Postdoctoral Fellowship which he received in 2000 and the Yigal Alon fellowship in 2003, for outstanding young researchers of the Israel Academy for higher education.
Prof. Mastai served as Chairman of the Chemistry Department at Bar-Ilan University, between 2014 and 2017. 
He also served as an executive board member of the Israel Chemical Society (ICS), The Israel Vacuum Society (IVS), the editorial board of the Journal of Nanomaterials and the Israel Journal of Chemistry (IJC).

References

1966 births
Living people
Academic staff of Bar-Ilan University
Israeli chemists
Jewish chemists
Weizmann Institute of Science alumni
Bar-Ilan University alumni
Max Planck Institutes researchers
Georgy Sergeevich Zhiritsky. Georgy Sergeevich Zhiritsky (; 26 September 1883 - 4 June 1966) was a Soviet scientist in the field of Rocket engines, and a professor.

Biography 
Zhiritsky was born in 1883 in the Tula Governorate.  In 1915 he graduated from the Kiev Polytechnic Institute. In 1918 he began working at the institute, and at the age of 32 he was promoted to professor. In 1926 and 1927, during his scientific trips to Germany, he became acquainted with the practice of German turbine construction.

In 1937, he was arrested on a false case of wrecking, and sent to work in Sharashka at the Tushino Aircraft Building Plant. There he was engaged in the design of aircraft engines, and specifically the design of the Centrifugal-type supercharger.

According to a letter of Lavrenty Beria, Beria asked Stalin to release 35 highly distinguished prisoners in 1944. Zhiritskiy obtained freedom with the removal of criminal records.

Zhiritskiy then worked as an aircraft constructor, taking up promising models of jet engines and also teaching at the Kazan Aviation Institute. Zhiritsky's main scientific works are related to heat engineering, turbine construction and rocket engine construction; they are devoted to the theory and design of steam engines, steam and gas turbines, and jet engines.

He was awarded with a large number of orders and medals. 

In 1970, a crater on the Moon was named after Zhiritsky.

Literature 
 Паровые машины. — Киев: Изд-во Исполбюро Пролетстуда КПИ, 1925. — 434 с.
 Паровые турбины. — Киев: Изд-во Исполбюро КПИ, 1927. — 387 с.
 Газовые турбины. — М.: Госэнергоиздат, 1948. — 504 с.
 Авиационные газовые турбины. — М.: Оборонгиз, 1950. — 512 с.

References 

Academic staff of Moscow Power Engineering Institute
Soviet engineers
Kyiv Polytechnic Institute alumni
1883 births
1966 deaths
Industrija Motora Rakovica. Industrija Motora Rakovica (; abbr. IMR) was an agricultural machinery manufacturer based in Rakovica, Belgrade, Serbia. Originally founded in 1927 as Zadrugar, they build tractors and engines. The engines are based on originally licensed Perkins engine models. Some of the tractors were based on Landini and Massey Ferguson models, originally licensed.

In 2009, IMR formed a partnership or joint venture with IMT, also of Serbia. In 2011, IMR began sending CKD tractors to Ethiopia for assembly. They are also sold in Egypt as EAMCO tractors. IMR shut down in 2015 along with IMT but with no plans for bringing it back.

Rakovica model names indicate their horsepower and most of the models had the DV (meaning 4×4, Serbian:Dupla Vuča) option. The most popular model is the 65, but the model range included:

60, 65, 76, Super series with redesigned bodies (47, 65, 76),120/135 (which had ZF transmissions), limited production 65 12 BS and 75 12 BS tractors.

Over the years, they also made some concept tractors, which included:

Rakovica 50 DV (Re-styled Goldoni tractor), Rakovica Transporter (also a re-styled Goldoni vehicle) and Rakovica R110 Turbo.

References

Manufacturing companies based in Belgrade
Manufacturing companies established in 1927
Serbian brands
1927 establishments in Serbia
Agricultural machinery manufacturers of Serbia
Tractor manufacturers of Serbia

Companies of Serbia
Manufacturing companies disestablished in 2015
2015 disestablishments in Serbia
Marcel Bayard. Marcel Bayard (1895-1956) was a French mathematician and telecommunications engineer. He made pioneering contributions to the telecommunications theory in the 1930s. As Chief Engineer of French telecommunications after World War II, he supervised and modernized the French telecommunications system.

Biography 
Born in 1895, son of a farmer, he obtained his baccalauréat in 1914. He served as young officer during the World War I where he was seriously wounded and received the Croix de Guerre. He entered the École polytechnique in 1919.

In 1923 he became an engineer in the French PTT and started his career by supervising submarine cable installations. As professor at the École nationale supérieure des télécommunications, he published several noted scientific papers. He was the first to establish in 1935 what is called the “Bayard-Bode relations” (relations linking Phase and Amplitude of a signal in specific cases. He also wrote the theorical electricity lessons for the École nationale supérieure des télécommunications where he was the first in France to introduce the matrix calculations for electrical network theory.

He represented France in international telecommunications committees in the 1930s.

After World War II, he was responsible for rebuilding and modernizing the French telecommunications network.

Membership & Honors
 Director of studies of the École nationale supérieure des télécommunications in 1941
 Chief Engineer of French Telecommunications in 1954.
 He was elected in 1950 vice-president of the Société mathématique de France.

Legacy

The French cable layer Marcel Bayard (:fr:Marcel Bayard (câblier)) named after him was launched in 1961.

References

Sources
Les pionniers de la téléphonie sous-marine

Publications 
 Sur la propagation des ondes le long des lignes de transmission et sur le calcul de l'onde résultante après les réflexions successives aux extrémités, bulletin de la Société française des électriciens N°23, March 1943.
 Cours d'électricité théorique, cours à l'École Nationale des Télécommunications, 1945 & 1948.
 Théorie des réseaux de Kirchhoff-Régime sinusoïdal et synthèse, collection technique et scientifique du CNET, 1954

1895 births
1956 deaths
People from Haute-Loire
20th-century French mathematicians
French telecommunications engineers
French electrical engineers
École Polytechnique alumni
Télécom Paris alumni
Supélec alumni
Sodium pyrosilicate. Sodium pyrosilicate is the chemical compound .  It is one of the sodium silicates, specifically a pyrosilicate, formally a salt of the unstable pyrosilicic acid .

Structure
The anhydrous solid has the triclinic crystal structure, with space group P (a = 5.8007(8) Å, b = 11.5811(15) Å, c = 23.157(3) Å, α = 89.709(10)°, β = 88.915(11)°, γ = 89.004(11)°, V = 1555.1(4) Å3, Z = 8, Dx = 2.615 g·cm−3, μ(Mo‐Kα) = 7.94 cm−1).  The  anions are arranged in layers parallel to the (100) plane, with the sodium cations distributed in 24 distinct crystallographic positions, coordinated by 4 to 6 near oxygen atoms. Some of the 4-coordinated sodium atoms can be interpreted as parallel columns of edge-sharing  tetrahedra.  The columnar arrangement forms tunnels that house the remaining sodium cations.  Twinning at a microscopic scale simulates a much larger monoclinic C centered lattice (V′ = 6220 Å3, Z = 32).

See also
 Sodium metasilicate, 
 Sodium orthosilicate,

References

Sodium compounds