omniomni/omni-engineering huggingface dataset:
Dickey E-Racer. The Dickey E-Racer, also called the Sierra Delta E-Racer, is an American homebuilt aircraft that was designed by Shirl Dickey and produced by Shirl Dickey Enterprises of Phoenix, Arizona. It was first flown in 1984. When it was available the aircraft was supplied in the form of plans for amateur construction, with some parts available to facilitate faster construction.

Design and development
The aircraft is based upon the Rutan Long-EZ. It features a cantilever mid-wing canard layout with tip rudders, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fully retractable tricycle landing gear and a single engine in pusher configuration.

The aircraft is made from E-glass. Its  span wing has a wing area of  and employs a Roncz R1145MS airfoil for the canard airfoil, and the main wing uses a modified Eppler 1230 airfoil. The standard engine used in the Mark 1 is the  Buick V-8 automotive conversion powerplant.

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 pilot, passenger and baggage is .

Like most canard designs the E-Racer has a long take-off and landing roll. The standard day, sea level take-off roll is . The landing roll is .

At one time pre-fabricated wings and canard were available to speed construction. The manufacturer estimates the construction time from the supplied plans as 2000 hours.

Operational history
By 1998 the company reported that four aircraft were flying and six by 1999.

In December 2013, 15 examples were registered in the United States with the Federal Aviation Administration.

Variants
E-Racer Mark 1
Initial version powered by a  Buick V-8 automotive conversion powerplant
E-Racer Mark 2
Later version powered by aircraft engine powerplants
King Racer
Later version with a larger cockpit

Specifications (E-Racer Mark 1)

References

External links

E-Racer
1980s United States sport aircraft
Single-engined pusher aircraft
Mid-wing aircraft
Homebuilt aircraft
Canard aircraft
Aircraft first flown in 1984
Poly(ethylene succinate). Poly(ethylene succinate) (PES) is an aliphatic synthetic polyester with a melting point from 103–106 °C. It is synthesized from dicarboxylic acids; either by ring-opening polymerization of succinic anhydride with ethylene oxide or by polycondensation of succinic acid and ethylene glycol. Thermophilic Bacillus sp. TT96 is found in soil and can degrade PES. Mesophilic PES degrading microorganisms were found in the Bacillus and Paenibacillus species; strain KT102; a relative of Bacillus pumilus was the most capable of degrading PES film. The fungal species NKCM1003 a type of Aspergillus clavatus also degrades PES film. The solubility of lithium salts (e.g. lithium perchlorate, LiClO4) in PES made it a good alternative to poly(ethylene oxide) (PEO) during early development of solid polymer electrolytes for lithium ion batteries.

References

Polyesters
Succinate esters
Hako GmbH. Hako GmbH is a manufacturer of street sweeping equipment and ultra-light commercial vehicles, headquartered in Bad Oldesloe, Germany with customers in about sixty countries. The company was founded on 24 December 1948; its name derives from Hans Koch & Sohn. It produces the Multicar line of vehicles.

History 

In 1924 in Mecklenburg, Hans Koch invented the world's first small mechanical cultivator, the Di-Mo-Ha. He founded the company in Pinneberg in 1948, and it began assembling and mass-producing cultivators and single-axle milling machines. In 1956 the company acquired a piece of land on Lübecker Straße in Bad Oldesloe; in the 1970s Hako moved to the industrial area on Hamburger Straße, where its headquarters are now located. It also has a technology center in Trappenkamp.

In 1998 Hako acquired sufficient shares in Multicar to become its controlling shareholder.

As of 2010, Hako is a worldwide leader in outdoor cleaning equipment.  In 2013 Hako was represented by a board member on the Cleaning Systems trade association of the VDMA (:de:Verband Deutscher Maschinen- und Anlagenbau), the largest industrial/engineering federation in Germany.

Products 

Today Hako is one of the leading manufacturers of professional machines for internal cleaning, external cleaning and plant care.  The company manufacturers severals types of polishing machines, carpet cleaning equipment, dust and water vacuums, scrubbers, sweepers, street-sweeping machines, single-axis motorized tools, small tractors (Hakotrac), and electric tractors.  In addition, Hako offers cleaning and maintenance products for professional janitors. Worldwide distribution is carried out by a dozen separate companies, as well as general importers in over 60 countries around the world, with Hako-Werke GmbH as the main business of the Hako-Group.

Structure 

Hako is a subsidiary of the Possehl Group.  Hako encompasses six brands (MinuteMan and PowerBoss in the United States), five factories, fifteen sales offices, and dealers in 25 EU countries (plus 20 additional countries internationally).  The branch office of the Multicar subsidiary is located in Waltershausen. The branch office of the Havelländische Maschinenbau subsidiary is located in the Glindow section of Werder an der Havel. In addition, the company has shares in six other subsidiaries.

See also 
 Motorsport involving the racing of small open-cab tractors on dirt tracks
 Training manuals (in German)

References

External links 
 Official Hako page

Truck manufacturers of Germany
Companies based in Schleswig-Holstein
Poly(hexamethylene carbonate). Poly(hexamethylene carbonate) (PHC) is an organic polymer.  It can be biodegredated to form adipic acid and di(6-hydroxyhexyl) carbonate by Roseateles depolymerans 61A. PHC can be synthesized to terminate in primarily hydroxyl groups or methyl carbonate groups depending on the concentrations of monomers during synthesis. PHC with the hydroxyl end groups has less thermal stability than PHC with methyl carbonate end groups. The hydroxyl group allow for an unzipping reaction to take place in which the polymer chain bends back on itself and the hydroxyl group reacts with an acetyl mid chain, resulting in a shorter chain and a looped molecule. This type of degradation quickly shorten the length of the PHC.

References

Organic polymers
Polycarbonates
Sven Trygve Falck. Sven Trygve Falck (9 March 1943 – 27 August 2019) was a Norwegian engineer, businessperson and politician for the Conservative Party.

He was born in Tønsberg as a son of bookseller Trygve Falck (1905–1974) and housewife Inger Erikson (1909–1995). He finished his secondary education in 1962 and took the siv.ing. degree in chemical engineering at the Norwegian Institute of Technology in 1967. While studying he edited Under Dusken in 1964.

His first engineering job was at Dow Chemical Co. in Texas from 1967 to 1970. After a year at Dow Chemical Co. in Germany, he was hired in Norsk Hydro in 1971. He was an engineer for Norsk Hydro at Rafnes from 1975, then chief engineer for Norsk Hydro in Porsgrunn from 1976 to 1981.

He was a member of Porsgrunn city council from 1977 to 1979, then the executive committee of Telemark county council while also serving as deputy chair of the county school board. He was also elected to the Parliament of Norway from Telemark in 1981, and served through one term as a member of the Standing Committee on Energy and Industry.

After leaving Parliament he was a consultant and business director. He was a board member of Norsk Jern Holding from 1990 to 1993, corporate council member of Norsk Jernverk from 1987 to 1989 and supervisory council member of Manufacturers Hanover Norge from 1986 to 1990 and Den Norske Industribank from 1990 to 1993 (deputy from 1986 to 1990).

References

1943 births
2019 deaths
Politicians from Tønsberg
Norwegian Institute of Technology alumni
Norwegian chemical engineers
Norwegian expatriates in the United States
Norwegian expatriates in Germany
Politicians from Porsgrunn
Politicians from Telemark
Conservative Party (Norway) politicians
Norwegian businesspeople
Dow Chemical Company employees
Members of the Storting 1981–1985
Rudolf Koechlin. Rudolf Koechlin (11 November 1862 – 11 February 1939) was an Austrian mineralogist.

Koechlin was born and died in Vienna.  He studied mineralogy, crystallography, petrology and geology at the University of Vienna, obtaining his doctorate in 1887 with a thesis on manganite, polianite and pyrolusite. At Vienna, his instructors included Gustav Tschermak and Albrecht Schrauf. In 1884 he began work as a volunteer in the mineralogical-petrography department of the Naturhistorisches Hofmuseum in Vienna. In 1897 he became a "custos-adjunct", later named a curator first-class (1912), and in 1920, was appointed director of the mineralogical-petrography department.

His scientific research largely dealt with minerals found in the Tauern region in Austria, e.g. bornite, euclase and sphene as well as the salt minerals glauberite and simonyite from the salt mine at Hallstatt. The mineral koechlinite is named in his honor.

He was the author of around 70 scientific papers and made important contributions towards publication of the "Mineralogisches Taschenbuch" (first edition, 1911). From 1910 to 1932, he was a staff member of the Wiener Mineralogische Gesellschaft. In 1922, he became a correspondent member of the Austrian Academy of Sciences.

References 

1862 births
1939 deaths
Scientists from Vienna
Austrian mineralogists
Scientists from Austria-Hungary
International School of Engineering. International School of Engineering (INSOFE) is an applied engineering school with area of focus in data science / big data analytics. It is located in Hyderabad, Telangana; Bengaluru, Karnataka; and Mumbai, Maharashtra, in India. It opened in 2011. The program is delivered through classroom only sessions and is suitable for students and working professionals.

History
Dr. Dakshinamurthy V Kolluru, Dr. Sridhar Pappu and A S L Ganapathi Kumar started the institution in Hyderabad in mid-2011 and expanded to Bengaluru in early-2016. Initially the school functioned under mentorship of Dr. Dakshinamurthy, Dr. Sridhar and Dr. Sreerama Murthy. They are now supported by a team of additional mentors and in-house data scientists.

The first cohort commenced in mid-2011 with 12 students. INSOFE has since trained over 2000 students from across the globe. In 2012, INSOFE also started corporate training services. It extended operations to Bengaluru in 2016.

Program
Within the field of Applied Engineering, INSOFE's primary focus is on Big data Analytics / Data science, training students in both the engineering and the business aspects of analytics. The quality of content, pedagogy and assessment of INSOFE's CPEE Program is certified by the Language Technologies Institute (LTI) at Carnegie Mellon University (CMU).

Rankings
CIO.com listed INSOFE 3rd in their list of "16 Big Data Certifications That Will Pay Off" consecutively from 2013 to 2016. Analytics India Magazine, listed INSOFE in "Top 9 Analytics Training Institutes in India in 2016". KDnuggets mentioned INSOFE in their list of Certificates in Analytics, Data Mining, and Data Science in 2014.

Collaborations
In the academic segment, Language Technologies Institute of Carnegie Mellon University, USA has certified INSOFE's Big Data analytics and optimization program for the quality of Content, Pedagogy and Assessment. INSOFE's institute-industry collaboration is with Soothsayer Analytics (Detroit, Michigan based A.I. consulting company) to help build a center of excellence in data science. Together they delivered projects for Abercrombie & Fitch, Worthington Steels, Preferred Meals, Dun & Bradstreet etc.  In collaboration with iCube, INSOFE developed INTUCEO, an analytics business user interface.

References

Engineering colleges in Hyderabad, India
2011 establishments in Andhra Pradesh
Educational institutions established in 2011
Duane's Hangar Ultrababy. The Duane's Hangar Ultrababy (sometimes Ultra Baby) is an American homebuilt aircraft that was designed by Duane Patrick and produced by Duane's Hangar of Liberty, South Carolina, introduced about 1997. When it was available the aircraft was supplied in the form of plans for amateur construction.

Design and development
The aircraft is a 75% scale version of the Bowers Fly Baby intended to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of . It can have a sufficiently low enough empty weight for that category when a light enough engine is fitted. The Ultrababy can also be registered in the American homebuilt aircraft category.

The Ultrababy features a wire-braced low-wing, a single-seat open cockpit with a windshield, fixed conventional landing gear and a single engine in tractor configuration.

The aircraft is made from wood, with its flying surfaces covered in doped aircraft fabric. Its  span wing lacks flaps and has a wing area of . The acceptable power range is  and the standard engine used is the  Half VW powerplant.

With the Half VW engine the Ultrababy has a typical empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload for pilot and baggage is .

The designer estimates the construction time from the supplied plans as 700 hours.

Operational history
By 1998 the company reported that 40 sets of plans had been sold and one aircraft was flying.

Specifications (Ultrababy)

References

Ultrababy
1990s United States sport aircraft
1990s United States ultralight aircraft
Single-engined tractor aircraft
Low-wing aircraft
Homebuilt aircraft
Early Bird Spad 13. The Early Bird Spad 13 (also SPAD 13) is an American homebuilt aircraft that was designed and produced by the Early Bird Aircraft Company of Erie, Colorado. When it was available the aircraft was supplied as a kit and also in the form of plans for amateur construction.

Design and development
The Spad 13 is an 80% scale replica of the First World War SPAD S.XIII. It features a strut-braced biplane layout, a single-seat open cockpit, fixed conventional landing gear and a single engine in tractor configuration.

The aircraft is made from a mix of steel and aluminum tubing, with some wooden parts and its flying surfaces are covered with doped aircraft fabric. Its  span wing has a wing area of . The cockpit width is . The acceptable power range is  and the standard engine used is the  fuel injected Geo Tracker four-cylinder, inline, liquid-cooled, four stroke automotive conversion powerplant.

The Spad 13 has a typical empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload for pilot and baggage is .

The supplied kit included the Tracker engine. The manufacturer estimated the construction time from the kit to be 600 hours.

Operational history
By 1998 the company reported that 35 kits had been sold and one aircraft was flying.

Specifications (Spad 13)

References

Spad 13
1990s United States sport aircraft
1990s United States ultralight aircraft
Single-engined tractor aircraft
Biplanes
Homebuilt aircraft
Replica aircraft
Société d'Aviation Letord. Société d'Aviation Letord was a French aircraft manufacturing company that was formed in the early 1910s by the French aviation industrialist Émile-Louis Letord. It manufactured a number of military aircraft during the First World War.

History
The company was formed in the early 1910s by the French aviation industrialist Émile-Louis Letord, (1883-1971). It produced a number of twin-engined biplanes for the French military during World War I.

Aircraft designs
Let.1 - reconnaissance biplane
Let.2 - reconnaissance biplane
Let.3 - twin-engined bomber biplane
Let.4 - twin-engined reconnaissance biplane
Let.5 - twin-engined bomber biplane
Let.6 - escort fighter
Let.7 - twin-engined bomber biplane
Let.9 - twin-engined night bomber biplane

See also
 Émile-Louis Letord

References

Bibliography

Defunct aircraft manufacturers of France

Companies based in Île-de-France
Early Bird Jenny. The Early Bird Jenny is an American homebuilt aircraft that was designed by Dennis Wiley and produced by the Early Bird Aircraft Company of Erie, Colorado, also by Leading Edge Airfoils of Peyton, Colorado. When it was available the aircraft was supplied as a kit and also in the form of plans for amateur construction.

Design and development
The aircraft is a 67% scale replica of the First World War Curtiss JN-4 Jenny. It features a strut-braced biplane layout, a two-seats-in-tandem open cockpit, fixed conventional landing gear and a single engine in tractor configuration.

At the time the kit was first made available the aircraft could be constructed as a US FAR 103 Ultralight Vehicles exemption two-seat trainer or as an amateur-built aircraft.

The Jenny is made from a mix of steel and aluminum tubing, with some wooden parts and its flying surfaces covered with doped aircraft fabric. Its  span wing has a wing area of  and the cockpit width is . The acceptable power range is  and the standard engines used are the  Rotax 503,  Rotax 532,  Rotax 582,  Rotax 618 two-stroke engines and the  Geo Metro-based fuel injected Raven 1000 UL three cylinder, inline, liquid-cooled, four stroke automotive conversion powerplant.

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 pilot, passenger and baggage is .

The supplied kit included the Rotax 503 engine. The manufacturer estimated the aircraft's construction time from the kit to be 500 hours.

Operational history
By 1998 the company reported that 53 kits had been sold and 24 aircraft were flying.

Specifications (Gen 1)

Specifications (Gen 2)

References

External links

Jenny
1990s United States sport aircraft
1990s United States ultralight aircraft
Single-engined tractor aircraft
Biplanes
Homebuilt aircraft
Leading Edge Air Foils aircraft
Replica aircraft
Technology Professionals Saskatchewan. Technology Professionals Saskatchewan (TPS) is Saskatchewan's only independent regulatory body in the Province of Saskatchewan that registers professionals in applied science and engineering technology.

TPS confers the professional post-nominal designations of C.Tech. (Certified Technician), and A.Sc.T. (Applied Science Technologist), which are symbols of achievement in applied science and engineering technology and are legally protected for use only by fully certified members in good standing. The designations are recognized across Canada by many employers and other professionals through the efforts of provincial associations of engineering technology.

The association is mandated and empowered by the "Saskatchewan Applied Science Technologists and Technicians Act".

TPS is a member of Technology Professionals Canada, which recognizes international transferability through the Sydney Accord and the Dublin Accords. 

The Society of Engineering Technicians and Technologists of Saskatchewan (SETTS), was established in 1965. It changed its name to Saskatchewan Applied Science Technologists and Technicians, and later to Technology Professionals Saskatchewan in May 2019.

Certified Applied Science Technologists are bound by a specific code of ethics and rules of professional conduct.

See also
Engineering technologist
Engineering Technology

References

External links
Technology Professionals Saskatchewan official page

Professional associations based in Saskatchewan
Organizations based in Regina, Saskatchewan
Professional associations based in Canada
Engineering societies based in Canada
Professional certification in engineering
Maurizio Lenzerini. Maurizio Lenzerini (born 14 December 1954) is an Italian professor of computer science and engineering at the Sapienza University of Rome (Dipartimento di Ingegneria Informatica Automatica e Gestionale Antonio Ruberti), where he specializes in database theory, Ontology language, Knowledge Representation and Reasoning as well as service modeling. He is the author of over 400 peer-reviewed articles, a fellow of both the European Coordinating Committee for Artificial Intelligence and ACM, and a member of the Academia Europaea - The Academy of Europe.

His paper DL-Lite: Tractable Description Logics for Ontologies, written along with Diego Calvanese, Giuseppe De Giacomo, Domenico Lembo and Riccardo Rosati, won the AAAI 2021 Classic Paper Award as "the most influential paper from the Twentieth National Conference on Artificial Intelligence, held in 2005 in Pittsburgh, Pennsylvania, USA".

In 2022 he won the prestigious Peter Chen Award.

References

External links
Maurizio Lenzerini on Google Scholar
Maurizio Lenzerini CV

Living people
1954 births
Italian computer scientists
2009 fellows of the Association for Computing Machinery
Fellows of the Association for the Advancement of Artificial Intelligence
The Society of Certified Engineering Technicians and Technologists of Nova Scotia. The Society of Certified Engineering Technicians and Technologists of Nova Scotia, also called TechNova Certified Technology Professionals, is Nova Scotia's independent certifying body for engineering/applied science technicians and technologists.

TechNova confers the post-nominal designations of C.Tech. (certified technician), and A.Sc.T. (Applied science technologist) which are symbols of achievement in engineering/applied science technology and are legally protected for use only by fully certified members in good standing.  The designations are recognized across Canada by many employers and other engineering professionals through the efforts of provincial associations that make up the Canadian Council of Technicians and Technologists (CCTT).  Through CCTT being a signatory, TechNova Certified Technology Professionals recognizes international transferability through the Sydney Accord, the Dublin Accord and the Engineering Technologist Mobility Forum, which confers the ability to award the designation IntET(Canada) for Technologists who wish to work internationally.

The Society of Certified Engineering Technicians and Technologists of Nova Scotia, was established in 1967. Today, they identify themselves with the name TechNova Certified Technology Professionals.

Certified engineering technologists are bound by a specific code of ethics and rules of professional conduct.

The society is mandated and empowered by the Applied Science Technology Act of Nova Scotia.

See also
 Engineering technologist
 Engineering Technician

References

External links
 
 Canadian Council of Technicians and Technologists (CCTT)

Engineering societies based in Canada
Professional associations based in Nova Scotia
Professional titles and certifications
Professional certification in engineering
Solid acid. Solid acids are acids that are insoluble in the reaction medium. They are often used as heterogeneous catalysts.  Many solid acids are zeolites. A variety of techniques are used to quantify the strength of solid acids.

Examples

Examples of inorganic solid acids include silico-aluminates (zeolites, alumina, silico-aluminophosphate), and sulfated zirconia. Many transition metal oxides are acidic, including titania, zirconia, and niobia.  Such acids are used in cracking. Many solid Brønsted acids are also employed industrially, including polystyrene sulfonate, solid phosphoric acid, niobic acid, and heteropolyoxometallates.

Applications 
Solid acids are used in catalysis in many industrial chemical processes, from large-scale catalytic cracking in petroleum refining to the synthesis of various fine chemicals.

One large scale application is alkylation, e.g., the combination of benzene and ethylene to give ethylbenzene. Another application is the rearrangement of cyclohexanone oxime to caprolactam.  Many alkylamines are prepared by amination of alcohols, catalyzed by solid acids.

Acylations are also catalyzed by solid acids.

Solid acids can be used as electrolytes in fuel cells.

References 

Acids
Acid–base chemistry
Acid catalysts