omniomni/omni-engineering huggingface dataset:
MikroKopter. MikroKopter is a German company, a subsidiary of HiSystems GmbH, that manufactures battery-powered radio-controlled unmanned aerial vehicles. The company is located in Moormerland, Leer District, in Lower Saxony.

History
Started in 2006 by Holger Buss and Ingo Busker, MikroKopter used a team of pilots to develop within 6 months a platform with great stability, manoeuvrability and powerful enough to lift a payload of several kilograms. Further developments, which incorporated an onboard GPS, piezo gyroscope, an acceleration sensor and a barometric sensor for altitude control, made autonomous flight possible and improved manoeuvrability.

Products
MikroKopter produce various multi-rotor models such as QuadroKopter (a quadcopter), HexaKopter and OktoKopter. The design lends itself to computer control and robotics researchers at the University of Pennsylvania have developed a program to control swarms of what they term 'Nano Quadrotors'. CCTV cameras provide feedback on position to the controlling computer, permitting complex manoeuvres that include tumbling.

Parent HiSystems GmbH has developed a built-in  LEA-6S GPS receiver, u-blox’ highest-performance GPS module for MikroKopter aircraft that allows precision positioning for photography and other applications.

Operational use
In February 2012 an animal rights group used a MikroKopter to film hunters shooting pigeons in South Carolina. The hunters shot the drone down.

References

External links
 

Companies based in Lower Saxony
Unmanned aerial vehicle manufacturers of Germany
Helicopter manufacturers of Germany
German brands
Søren Absalon Larsen. Søren Absalon Larsen (April 5, 1871 – January 2, 1957) was a Danish physicist who worked in the field of electroacoustics and is best known for giving his name to the Larsen effect.

Absalon Larsen was originally MSc. Philosophy and taught theology, then he began to study physics. 
He subsequently joined to assist Professor Peter Kristian Prytz in the organization of a new exercise course in electronics for mechanical engineers.  He was employed at the Polytechnic college, first as a lecturer, later as a professor of electrical engineering. From 1937 he was chairman of the electrical engineering group under the Danish Academy of Technical Sciences.

More biographical detail exists in the Dansk Biografisk Leksikon and the Nordisk Familjebok, in Danish.

Family

Larsen was the son of farmer and carpenter, later maltster Hans Christian Larsen (1834-1920) and Ingeborg Absalonsen (1833–92).

In 1900, he married Agnes Hedevig Elisabeth Munch (born 11 June 1874 in Haslemere - died 20 September 1953 in Gentofte).

Education
 1896 - 1897: Assistant Professor K. Prytz (Peter Kristian Prytz, 1851-1929)
 1898: Copenhagen University gold medal for thesis on Electrical Conductivities of Amalgamates
 1898 - 1903: Assistant at Polytechnic College Physical Laboratory 
 1903 - 1906: Associate Professor of electrical engineering at the Polytechnic College 
 1906 - 1941: Professor of Electrical Engineering at the Technical University 
 1951: Honorary Doctorate, Technical University of Denmark

Publications
 AC 1 + 2" 1923 (book) 
 Messungen von vagabondierenden Stromen in Gas-und Wasserrohren" 1901 (journal article) ~ Measurement of Stray Electrical Current Effects in Gas and Water Pipes.
 A. Larsen, “Ein akustischer Wechselstromerzeuger mit regulierbarer Periodenzahl für schwache Ströme,” Elektrotech. Z., ETZ 32, pp. 284–285, Mar. 1911.
 WorldCat Entries
 Sagen mod praesten i Vejlby og de sager, der fulgte by Absalon Larsen (Book)
 Telegrafonen og den Traadløse og Opfinderparret Valdemar Poulsen og P. O. Pedersen by Absalon Larsen (Book)
 Naturfredning i Frederiksborg amt by Absalon Larsen (Book)
 Methodical classification of international definitions : A paper read before the special committee on nomenclature, a their meeting in Cologne, March 1913 by Absalon Larsen (Book)
 Om Radioforstyrrelser og Midler derimod (Book)
 The Discovery of electromagnetism made in the year 1820 by H. C. Oersted by Absalon Larsen (Book)

References 

Danish physicists
Danish acoustical engineers
People from Middelfart Municipality
1871 births
1957 deaths
UL-Jih Evolution. The UL-Jih Evolution is a conventionally laid out, two-seat, high-wing, single-engine ultralight, designed and built in the Czech Republic. Two variants were available in 2010.

Design and development

The first version of the Evolution, originally designed by Jaroslav Sedláĉek of the Czech company UL-Jih was marketed by WD Flugzeugleichtbau of Germany as the Dallach D.5 Evolution with series production starting in 2002. UL-Jih fabricated both this model and the earlier D.4 Fascination and claimed sole production and marketing rights to both when WD Flugzeugleichtbau ceased trading in 2005, though those rights are challenged by Swiss Light Aircraft AG who build their own versions.

The Evolution is an all-composite aircraft, which uses the same cantilever wings, control surfaces and empennage as the Fascination but has a high-wing configuration, rather than the latter's low wing. The wing is of trapezoidal plan, with ailerons that have external balance trim tabs and sealed nosegaps. Inboard, there are electrically operated Fowler flaps. The fuselage becomes slender towards the tail, where the trapezoidal tailplane is set at mid-height, the elevators having a small cutout for rudder movement. The fin is swept but the rudder has vertical edges; it extends to the bottom of the fuselage. The underwing cabin seats two in side-by-side configuration, with access via glazed side doors. The Evolution has a retractable tricycle undercarriage; all three legs retract rearwards into the fuselage, on which they are mounted. A ballistic recovery parachute is available as an option.

The Evolution may be powered either by a 73.5 kW (98.6 hp) Rotax 912ULS or a 59.6 kW (79.9 hp) Rotax 912UL.

Operational history
At least six Evolutions had been built by the time WD ceased trading in 2005 and 15 appeared on the mid-2010 civil registers of European countries, excluding Russia.

Variants
E80
Rotax 912UL engine.
E100
Rotax 912ULS engine.

Specifications (E100)

References

External links

2000s Czech ultralight aircraft
UL-Jih aircraft
Open Engineering. Open Engineering is a peer-reviewed open access scientific journal, covering all aspects of engineering, from electrical and computer engineering, civil and environmental, mechanical, and aerospace engineering, to materials science. The editor-in-chief is William F. Ritter (University of Delaware).

The journal was established in 2011 as the Central European Journal of Engineering. It was co-published by Springer Science+Business Media and Versita (since 2012 part of Walter de Gruyter). By the end of 2014 the journal was moved completely to the De Gruyter imprint, obtaining its current title and switching to full open access.

Abstracting and indexing 
The journal is abstracted and indexed in Astrophysics Data System, Chemical Abstracts Service, and Scopus.

References

External links 
 

Engineering journals
Academic journals established in 2011
Quarterly journals
English-language journals
De Gruyter academic journals
Creative Commons Attribution-licensed journals
Satélite de Reentrada Atmosférica. SARA - Satélite de Reentrada Atmosférica is a Brazilian satellite project, with the objective of performing experiments in microgravity environment and returning them to the Earth.

SARA Suborbital

Configuration
The "Sara suborbital" platform heights 350 kg and is divided into four subsystems:
 Structural
 Electrical - includes cold gas actuators, designed to null the satellite's angular velocity after launch
 Recovery - 3 parachutes: pilot, drogue and main
 Experiment module (MEXP)

Flights

SARA Suborbital 1 / Operação São Lourenço 
The proposed flight schedule included a first sub-orbital test flight (SARA Suborbital 1) in 2014 using a VS-40 rocket launched from the Centro de Lançamento da Barreira do Inferno (Operação São Lourenço). The predicted apogee was 350 km with a range of 300 km. Time spent in microgravity would be around 8 minutes, after which the satellite would reenter the atmosphere and be recovered at sea, 100 km out from Parnaíba.

On 13 November 2015 the launch was attempted, resulting in an explosion of the VS-40M V03 rocket on the pad.

SARA Suborbital 2 
A second suborbital flight was planned (SARA Suborbital 2), to test flight attitude control system and de-orbit engine.

SARA Orbital
The orbital version of the satellite will operate in a circular 300 km low Earth orbit, during a maximum of 10 days.

References

Satellites of Brazil
Skye Treck Skyseeker. The Skye Treck Skyseeker is a Canadian ultralight aircraft that was designed and produced by Skye Treck of Manitoba. The aircraft was supplied as a kit for amateur construction.

Design and development
The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of . The aircraft has a standard empty weight of . It features a cable-braced high-wing, a single-seat, open cockpit, conventional landing gear and a single engine in pusher configuration.

The aircraft is made from bolted-together aluminium tubing, with the flying surfaces covered in Dacron sailcloth. Its single-surface  span wing's cable bracing is supported by a single kingpost. The pilot is accommodated on an open seat, without a windshield. The landing gear features bungee suspension on all three wheels and the tail wheel is steerable. No brakes are fitted. The standard engine supplied was the single cylinder two-stroke Rotax 277 of  and it is mounted on the wing trailing edge, with the propeller turning in between the tail boom tubes. The engine utilizes a 2:1 belt reduction drive with a centrifugal clutch to allow the propeller to stop when the engine is at idle.

The Skyseeker sold in very large numbers in the 1980s in Canada.

Variants
Skyseeker Mk I
Initial single seat version with hybrid weight-shift and aerodynamic controls.
Skyseeker Mk II
Two seat version.
Skyseeker Mk III
Improved single seat version with three-axis aerodynamic controls, with spoilers for roll control.

Aircraft on display
British Columbia Aviation Museum

Specifications (Skyseeker Mk III)

References

External links
Photo of Skyseeker Mk III

1980s Canadian ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
TL Ultralight TL-32 Typhoon. The TL Ultralight TL-32 Typhoon is a wing and boom, high wing ultralight with its engine mounted above and ahead of the wing, seating two in side-by-side configuration.  It was designed and built in the Czech Republic in the 1990s.

Design and development

The Typhoon has a fabric covered wing which is rectangular in plan and fitted with full span ailerons.  The wing is braced to the lowest part of the fuselage with V-form lift struts, aided by jury struts, on each side.  From the wings a pair of horizontal tubes, initially parallel and about 1 m (40 in) apart, curve together towards the tail.  They are joined there by a second pair which define the lower fuselage and arch upwards to the rear. These tubes are often but not always enclosed.  The low aspect ratio tailplane and elevators are mounted at the end of the tubes, as are the fin and rudder surfaces, both of which extend below the horizontal tail; the lower fin is protected by a surrounding tube and the rudder, which has a trim tab, moves in an elevator cut-out.

The cockpit is beneath the wing, with side-by-side seats, enclosed and with deep glazing.  Below it the Typhoon has a short legged, fixed tricycle undercarriage, with small mainwheels enclosed in fairings.  The engine, typically a Rotax two-stroke in the 37 kW (50 hp) to 48 kW (64 hp) range like the Rotax 462, 503 or 582, is mounted, uncowled, on the upper side of a horizontal beam from within the wing.

Operational history
The Typhoon went into production in 1991, gaining its Czech certification in 1999. It was still in production in 2000, though in 2011 the company no longer advertises it.  Total production was over 200. 55 Typhoons appear on the mid-2010 civil registers of European countries, Russia excluded.

Specifications

References

TL-32 Typhoon
1990s Czech and Czechoslovak ultralight aircraft
Otto C.I. The Otto C.I, also known as the Otto KD.15, was a German two-seat biplane reconnaissance and bomber aircraft of the First World War designed and produced by Otto Flugmaschinenfabrik. The C.I was a rare example of an aircraft flown by the Central Powers which had a pusher configuration.

Design and development
The German aeronautical engineer Gustav Otto designed the C.I as a reconnaissance aircraft for use by the Imperial German Flying Corps. It was an all wooden, fabric covered twin boom design with box-shaped booms. Forward was a large fuselage gondola with two seats, the observer sitting at the fore and the pilot to the rear. Behind the pilot was a six-cylinder engine driving a pusher propeller.

The unarmed prototype first flew in May or June 1915, named KD.15 and powered by a  Rapp engine. Production examples were given the official designation C.I and the observer was provided with a single machine gun for defence. The Rapp engine proved unreliable so production aircraft were also equipped with the lower-powered  Mercedes D.III or  Benz Bz.III.

The aircraft was produced in small numbers and proved to be the last made by the company. It is unrelated to the C.II made under license for LVG by Otto.

Operational history
The C.I entered very limited service with the Imperial German Air Service, serving only with Bavarian Feldflieger Abteilung like 4b, 8b and 9b. They were delivered in two batches, each of six aircraft, ordered in August and November 1915 respectively, and served until at least April 1916.

Initially considered "good for nothing" by the Bavarian airmen who first flew them, the aircraft gained a positive reputation during their short careers. They were favourably viewed for their stability and reliability yet were nimble with good handling characteristics both on the ground and in the air.

The aircraft saw limited export success, being sold to the Bulgarian Air Force in 1915. Thirteen were delivered to Bozhurishte in spring 1916, serving with 2 Aeroplane Otdelenie based at Udovo. The first batch was powered by the Benz engine, while the latter used the slightly more powerful Mercedes inline. These aircraft were used in the bombing and reconnaissance role. They served until 1917, when they were replaced by the more capable Albatros C.III.

Operators
 
 Bulgarian Air Force

Luftstreitkräfte

Specification

See also

References

Notes

Bibliography

 

 

 
 

1910s German military reconnaissance aircraft
Aircraft first flown in 1915
Biplanes
Single-engined pusher aircraft
Twin-boom aircraft
FortranM. FortranM is a computer language for modular parallel programming. Its syntax is based on Fortran but has additional elements such as channels and ports for communication between processes.

The language was designed by K. Mani Chandy's group at Caltech, along with an Argonne national labs team.
 The compiler for the language is freely available from Argonne labs.

In FortranM processes communicate by sending and receiving messages on channels. Processes and channels can be dynamically created, but programs remain deterministic.

Sources

Fortran
Heliatek. The company Heliatek was spun off in July 2006 from the Technical University of Dresden (IAPP) and the University of Ulm. The company's founding brought together the fields of organic optoelectronics and organic oligomer synthesis. 

In 2011 the company was recognized, by an audience other than professionals in the field, for winning the German Future Prize. The World Economic Forum awarded the firm as a Technology Pioneer in 2015.

See also
 Can Heliatek Get Organic PV to Market? 
 Heliatek achieves new world record for organic solar cells 
 SPIE TV: Karl Leo: Efficiency improvements are key to future of organic photovoltaics

References

Solar energy companies
Optoelectronics
BHEL Jhansi. Bharat Heavy Electricals Limited, Jhansi is a factory and township in Uttar Pradesh, India. It was founded on 9 January 1974 and is one of the 17 manufacturing units of the Bharat Heavy Electricals Limited (BHEL) Corporation. It is located on NH-44, 15 km south of Jhansi city. The Jhansi unit is spread in , which includes  of township having large green cover and excellent amenities.
 
BHEL Jhansi started production of transformers in 1976. BHEL Jhansi has two product groups: transformers and locomotives. Marketing of products and services is done at the corporate level by Power sector, Industry sector, International operation division and regional office divisions spread all over India.

BHEL Jhansi has received the CII Exim bank award of  "Strong Commitment to Excel" in the year 2007 in the field of Business 
Excellence.

Organisation 
The BHEL Jhansi unit is led by the executive director, Shri Vinay Nigam, who reports to the chairman and managing director. The organisation is governed by corporate policies including human resources, procurement and finance. The operations of BHEL Jhansi are monitored by the BHEL corporate management committee.

Products 

 Transformers − Power Transformers up to 400 kV class/Traction trfr/ESP trfr./Special trfr/Dry TypeTrfr./Inst trfr up to 400 kV class and voltage transformer and current transformers are also produced.
 Locomotives − WAG 7 AC locomotive for Indian railway/diesel locos. all application 3300 hp/wagons up to 300 MT 27 axle/railway track equipment/metro for kolkatta/emu coaches.

Workforce 
BHEL Jhansi has a committed workforce of 1030 employees. All employees have technical 
and professional background to suit the operations. Skilled and experienced manpower is major strength of organisation along with engineering and R&D strength. It also has around 1200 contract workers to cater to the support services.

Workers have recognised union and supervisors have their registered association. To safeguard 
interest of SCs/STs, a registered SC/ST association is in place.

Certifications and recognition 
BHEL Jhansi has been certified for ISO 9001:2001 for Quality Assurance.

External links 
 [www.bheljhs.co.in Official website of BHEL Jhansi]
 Official website of BHEL

References 

Buildings and structures in Jhansi
Manufacturing plants in Uttar Pradesh
1974 establishments in Uttar Pradesh
Economy of Uttar Pradesh
BHEL
Diethylethanolamine. Diethylethanolamine (DEAE) is the organic compound with the molecular formula .  A colorless liquid,  is used as a precursor in the production of a variety of chemical commodities such as the local anesthetic procaine.

Applications
Diethylethanolamine is used as a corrosion inhibitor in steam and condensate lines by neutralizing carbonic acid and scavenging oxygen.

Diethylethanolamine reacts with 4-aminobenzoic acid to make procaine. 

DEAE is a precursor for DEAE-cellulose resin, which is commonly used in ion exchange chromatography.

it can decrease the surface tension of water when the temperature is increased.

Solutions of DEAE absorb carbon dioxide (CO2).

Preparation
Diethylethanolamine is prepared commercially by the reaction of diethylamine and ethylene oxide.

(C2H5)2NH + cyclo(CH2CH2)O → (C2H5)2NCH2CH2OH
It is also possible to prepare it by the reaction of diethylamine and ethylene chlorohydrin.

Safety
Diethylethanolamine is an irritant to the eyes, skin, and respiratory system. The Occupational Safety and Health Administration and the National Institute for Occupational Safety and Health have set occupational exposure limits for workers handling the chemical at 10 ppm (50 mg/m3) over an eight-hour workday.

References

Diethylamino compounds
Primary alcohols
Ethanolamines
ACS Macro Letters. ACS Macro Letters is a peer-reviewed scientific journal published by the American Chemical Society. , ACS Macro Letters has the highest impact factor of any journal in the field of polymer science (6.131). With the launch of ACS Macro Letters, all Communications to the Editor that were formerly published in Macromolecules will be published as Letters in ACS Macro Letters. Researchers are advised turn to ACS Macro Letters for reports of early, urgent results in polymer science and to Macromolecules for more detailed discussions of comprehensive research findings.

Scope 
Examining both synthetic and naturally occurring polymers, ACS Macro Letters reports major advances in polymer synthesis, modification reactions, characteristics, theory, simulation, surface properties, and kinetics and mechanisms.  The journal reports on all areas of soft matter science where macromolecules play a key role, including nanotechnology, self-assembly, supramolecular chemistry, biomaterials, energy, and sustainable materials.

Readership 
ACS Macro Letters is intended for researchers in polymer science as well as materials science, nanotechnology, pharmaceuticals, and energy.  The journal makes it possible for these researchers to stay abreast of the most urgent research results in polymer science and its related disciplines.

Types of Articles 
ACS Macro Letters publishes peer-reviewed…
 Letters: Short reports of original research focused on an individual finding of great significance to the field of polymer science.
 Viewpoints: In-depth examinations and perspective on topics of current interest to researchers in the field.

Editor-in-Chief 
Timothy P. Lodge served as the Founding Editor-in-Chief of ACS Macro Letters (2011–2017). In 2018, Lodge was succeeded by Stuart J. Rowan, who was formerly the Deputy Editor.

Submissions 
ACS Macro Letters enables researchers in the field to bring their important findings in polymer science and related disciplines to the attention of the global scientific community.  Manuscripts are typically published within four to six weeks of manuscript submission.  The journal encourages submissions and publishes Letters from around the world.

See also 
 Biomacromolecules
 Macromolecules

References

External links 
 ACS Macro Letters Home Page
 Information for Authors & Reviewers

American Chemical Society academic journals
Chemistry journals