omniomni/omni-engineering huggingface dataset:
Proscovia Margaret Njuki. Proscovia Margaret Njuki is a Ugandan electrical engineer and civil servant. Effective 24 November 2016, she serves as the chairperson of the board of directors of Uganda Electricity Generation Company Limited (UEGCL). She replaced Stephen Isabalija, who was appointed permanent secretary at the Uganda Ministry of Energy and Mineral Development.

Background and education
She was born on 25 June 1951 to Reverend and Mrs. Benoni Kaggwa-Lwanga. She attended Gayaza High School for her O-Level and A-Level education. She studied at the University of Nairobi, graduating with a Bachelor of Science in electrical engineering in 1974, the first female Ugandan to graduate as an engineer.

Career
Following graduation from Nairobi, she returned to Uganda and began work as a telecommunications engineer at the then national television station, Uganda Television (UTV). She rose through the ranks and in 1994, was appointed the head of UTV engineering services. In 1995, she was appointed Commissioner of UTV. Prior to assuming the chairmanship at UEGCL, she served as a member of that body, chaired by Dr. Stephen Isabalija.

Other responsibilities
She is a founder-member of the Association of Women Engineers, Technicians and Scientists in Uganda, since 1989. She is also a member of the Institution of Professional Engineers in Uganda and served on its executive council from 1990 until 1993.

Personal
In 1977, she married Samwiri H.K. Njuki; they have two daughters and one son.

See also
Irene Muloni
Monica Azuba Ntege
Miriam Muwanga

References

External links
Website of UEGCL

1951 births
Living people
20th-century women engineers
Ugandan women engineers
Ugandan electrical engineers
Ganda people
University of Nairobi alumni
People educated at Gayaza High School
21st-century women engineers
21st-century Ugandan women scientists
21st-century Ugandan scientists
Villenkolonie Pasing I. The Villenkolonie Pasing I is a single-family house colony in Munich-Pasing.

History 
The Villenkolonie Pasing I was built on the initiative of the architect August Exter, starting in 1892, as "Villenkolonie Neu-Pasing I". Exter acquired a large piece of arable land and connected the area, at his own expense, with its own canal system and water through a water tower on Orthstraße. This settlement with numerous historically protected buildings followed the idea of the Garden city movement. The project was very successful, and nearly all of the 120 sites were sold in 1895. The building styles were based on historical models and, on the other hand, local building traditions. The Villenkolonie is bounded to the south by the railways, in the west and north by the Nymphenburger Kanal and in the east by the Offenbachstraße. In 1897, west of the Pippinger Straße, the Villenkolonie Pasing II was established. In 1973 the ensemble of Villenkolonie Pasing I was protected as historical monument.

Literature 
 Pasinger Fabrik GmbH (ed.): Architect August Exter - Villen Colonien Pasing; Publikation zur Ausstellung 2. - 31. Okt. 1993; Buchendorfer Verlag, Munich 1993; 
 Renate Mayer-Zaky, Reinhard Bauer: Pasing. Stadt in der Stadt. Das Stadtteilbuch. 1996, .
 Michael Petzet, Heinrich Habel, Johannes Hallinger, Timm Weski: Denkmäler in Bayern: Landeshauptstadt München Mitte. 3 volumes. Edition Lipp, 2009, .

References 

Buildings and structures in Munich
Historicist architecture in Munich
Pasing-Obermenzing
JR Freight Class DB500. The  is a B wheel arrangement two-axle diesel-hydraulic locomotive type operated by Japan Freight Railway (JR Freight) on shunting duties in Japan since March 2017.

Overview
The Class DB500 was developed to replace ageing Class DE10 diesel-hydraulic locomotives used for shunting duties at smaller freight terminals such as Shimonoseki in Yamaguchi Prefecture. The locomotive has a single water-cooled four-cycle straight six-cylinder diesel engine, with a power output of , sufficient to haul  trains.

History
The Class DB500 entered service at Shimonoseki Freight Terminal from the start of the revised timetable on 4 March 2017.

Classification

The DB500 classification for this locomotive type is explained below.
 D: Diesel locomotive
 B: Two driving axles
 500: Diesel-hydraulic locomotive

References

Further reading

External links

 Hokuriku Heavy Industries website  

Diesel–hydraulic locomotives of Japan
DB500
B locomotives
1067 mm gauge locomotives of Japan
Railway locomotives introduced in 2017
Shunting locomotives
Oil regeneration. Oil regeneration - is extraction of contaminants from oil in order to restore its original properties to be used equally with fresh oils.

Oil aging
Aging is a result of physical and chemical processes that change oil during storage and use in machines and mechanisms.
The main cause of aging is exposure to high temperatures and contact with air that leads to oxidation, decomposition, polymerization and condensation of hydrocarbons. Another cause of aging is contamination with metal particles, water and dust. Their accumulation leads to buildup of slurries, resinous and asphaltic compounds, coke, soot, various salts and acids in the oils.
The oil in which aging process occurs, cannot fully perform its functions. Therefore, it is either replaced with new oil or regenerated.

Regeneration by physical methods
Physical methods of regeneration do not change the chemical properties of oil. They remove only mechanical impurities (metal particles, sand, dust, as well as tar, asphalt and coke-like substances, water).
Regeneration by physical methods include:
 sedimentation. This method is often used as the first stage in regeneration.  The contamination particles in oil settle down, due to gravity;
 centrifugation - separates oil into layers (an oil layer, a rag layer, a water layer,) by centrifugal forces;
 filtration - separates suspensions into clean liquid and wet sediment with the help of filters;
 Washing with water and dry washing to remove acidic products from oil (water-soluble low-molecular acids, salts of organic acids).

Regeneration by physicochemical methods

Physicochemical methods are based on the use of coagulants and adsorbents. Coagulants promote the coarsening and precipitation of fine-dispersed asphalt-resinous substances in oil. Adsorbents selectively absorb organic and inorganic compounds. These methods remove asphalt and resinous compounds, emulsified and dissolved water from oil. Adsorptive treatment with bleaching clays neutralizes free acid in acid-treated oil, unstable oxidized and sulphurized products as well as traces of sulphonic acid. In addition, clay treatment leads to higher resistance to oil oxidation at high temperatures and increased colour stability. This process is used in clay polishing plants for waste oil re-refining and transformer oil regeneration systems for the reclamation of old transformer oil to as-new condition.

Regeneration by chemical methods

Chemical methods of regeneration remove asphalt, silicic, acidic, some hetero-organic compounds and water from oils. These methods are based on the interaction of contaminating substances in oil with special reagents introduced into them. The compounds formed as a result of these chemical reactions are then easily removed from oil. Chemical methods include acid and alkaline refining, drying with calcium sulphate or reduction with metal hydrides.

Choice of methods of regeneration

In practice, to achieve a complete regeneration of oil using only one method is difficult. Therefore, a combination of different approaches are often used.

See also 

 Oil purification

References

External] links
Oils
Recycling
Rod Smallwood (medical engineer). Professor Rodney Harris Smallwood FREng, HonFRCP, FIET, FInstP, FIPEM (born 1945), known as Rod, is a British medical engineer and computer scientist.

Smallwood graduated in Physics from University College London, then studied solid-state physics at Lancaster University, before working for the National Health Service in Sheffield and gaining a PhD from the University of Sheffield.

He was appointed Professor of Medical Engineering and Head of the academic Medical Physics and Clinical Engineering Department at the University of Sheffield in 1995, took a computer science post in 2002, and subsequently became Professor of Computational Systems Biology and the Director of Research for Engineering.

He has served as president of the Institute of Physics and Engineering in Medicine.

References

External links 

 
 

1945 births
Place of birth missing (living people)
Fellows of the Institute of Physics and Engineering in Medicine
Fellows of the Royal Academy of Engineering
Fellows of the Institution of Engineering and Technology
Living people
Alumni of the University of Sheffield
European Young Engineers. The European Young Engineers (EYE)  is a European non-profit organisation, listed in the register of Engineering associations of the World Federation of Engineering Associations.

History 
Young members of the European engineers’ organisations created a pan-European platform and founded the European Young Engineers (EYE) in 1994. During the following years several engineering associations in Europe were invited to join.

EYE became an organisation consisting of more than 23 associations and representing approximately more than 250.000 young engineers in Europe. EYE started to offer its member organisations and their students and young engineers the access to a Europe-wide network by linking the engineering associations.

EYE offers a member-hosted conference. Between these events, the community stays in contact via their website.

In 2007 the European Young Engineers signed a Memorandum of Cooperation with FEANI.

List of member organisations

References 

Engineering societies
International scientific organizations based in Europe
Organisations based in Brussels
Organizations established in 1994
Youth science
GESTIS Substance Database. GESTIS Substance Database is a freely accessible online information system on chemical compounds. It is maintained by the Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung (IFA, Institute for Occupational Safety and Health of the German Social Accident Insurance). Information on occupational medicine and first aid is compiled by Henning Heberer and his team (TOXICHEM, Leuna).

The database contains information for the safe handling of hazardous substances and other chemical substances at work:
 toxicology/ecotoxicology
 important physical and chemical properties 
 application and handling
 health effects
 protective measures and such in case of danger (incl. first aid)
 special regulations e.g. GHS classification and labelling according to CLP Regulation (pictograms, H phrases, P phrases).

The available information relates to about 9,400 substances. Data are updated immediately after publication of new official regulations or after the issue of new scientific results.

A mobile version of the GESTIS Substance Database, suitable for smartphones and tablets, is also available.

References

Literature

External links 
 GESTIS Substance Database

Biochemistry databases
Online databases
Occupational safety and health
Huguette Tiegna. Huguette Tiegna (born 1 April 1982) is a French engineer and politician of La République En Marche! (LREM) who has been serving as a member of the French National Assembly since 18 June 2017, representing the department of Lot.

Early life

Originally from Burkina Faso, she obtained an engineering degree in electrical engineering from the Higher Institute of Mining, Industry and Geology (EMIG) in Niger. She arrived in France in 2009, in Le Havre. In 2012, she received a scientific prize for her research work on axial flux motors. In 2013, she defended a doctoral thesis, directed by Professor Georges Barakat, at the Le Havre Normandy University on permanent magnet synchronous machines and their practical applications for wind energy.

She is an R&D engineer in electrical engineering, and worked for the company Whylot in Cambes, where she designed motors for wind turbines.

Political career
Tiegna joined La République en Marche, a party created by Emmanuel Macron, shortly after its founding in 2016. The following year, she was a candidate in the legislative elections. Arriving at the top of the first round with 35% of the vote, she won the second with 53% against the socialist candidate Vincent Labarthe.

In March 2018, Huguette Tiegna presented a report that she conducted as part of the work of the Parliamentary Office for the Evaluation of Scientific and Technological Choices (OPECST) on the issues and applications of 3D printing.

During the same month, Tiegna was asked by OPECST to conduct a mission, "Cap 2040" on stopping the sale of vehicles emitting greenhouse gases by 2040.

Tiegna was re-elected as a Member of Parliament in the 2022 legislative elections with 34.14% of the vote, following a particularly close vote.
In parliament, Tiegna serves on the Committee on Economic Affairs and the Parliamentary Office for the Evaluation of Scientific and Technological Choices (OPECST). In addition to her committee assignments, she chairs the French Parliamentary Friendship Group with Burkina Faso.

See also
 2017 French legislative election

References

1982 births
Living people
Deputies of the 15th National Assembly of the French Fifth Republic
Renaissance (French political party) politicians
21st-century French women politicians
Women members of the National Assembly (France)
Black French politicians
French people of Burkinabé descent
Burkinabé emigrants to France
Alan MacDougall. Alan MacDougall FRSE FRSSA MICE (1842–1897) was a civil engineer of Scots descent famed for his work in Canada in the 19th century.

Life
He was born in India on 22 May 1842 the third son of Lt Col. John MacDougall a soldier of Scottish descent.

The family returned to Scotland in his youth and he was educated at Edinburgh Academy and then in 1859 was apprenticed to a civil engineer, Charles Jopp, based at 118 George Street in Edinburgh’s New Town. In 1862 he began working for the North British Railway and in 1864 became one of their resident engineers.

In 1868 he moved to Canada to take on a role of civil engineer to the Toronto, Grey and Bruce Railway and was Chief Assistant during its construction until 1872. In 1873 he joined William Kingsford as his assistant to works on the upper harbours and river works on the St Lawrence River. In 1877 he returned to Scotland to rejoin the North British Railway.

In 1878 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were Andrew Wood, Edward Sang, Robert James Blair Cunynghame, and Sir John Batty Tuke. He resigned from the Society in 1889.

In 1882 he returned to Canada as Divisional Engineer for the Manitoba area to the Canadian Pacific Railway. In 1883 he made a career jump from railway engineer to sanitary engineer, and became a principal advisor to numerous Canadian municipalities on sewerage and waterworks provision. During this period he oversaw works in Ontario at St. Catharines, Stratford, Goderich, Peterborough, Belleville, Thunder Bay, and Brandon. Beyond Ontario he was responsible for major improvements in both Calgary and Vancouver.

In 1887 he became City engineer to Toronto. He helped to found the Canadian Society of Civil Engineers and served as its Vice-President in 1894.

He retired due to ill health and died in Exeter in England on 23 April 1897.

Family

In 1872 he married Emily Augusta McCaul daughter of Dr John McCaul of Toronto in Canada. They had a daughter and three sons.

References

1842 births
1897 deaths
People educated at Edinburgh Academy
Scottish civil engineers
Fellows of the Royal Society of Edinburgh
British people in colonial India
DNA-OS. DNA-OS is a French-made operating system to supersede MutekA, an obsolete operating system, while still providing POSIX thread API. As said on the SoCLib website, "It is a kernel-mode lightweight operating system for Multiprocessor System on a Chip. It is built on top of a thin HAL to ease porting on new platforms and processor architecture. DNA/OS does not support virtual memory."

DNA-OS is a layered microkernel operating system, written in C99, released under the GNU GPLv3 license.

Target hardware / software 

 ARM7, ARM9, Cortex A8/A9
 MIPS
 Micro Blaze
 SparcV8
 NiOS

OS flavours 

 SMP (Symmetric multiprocessing)
 DS (Distributed Scheduling)

Associated libraries 

 Native POSIX Threads
 Newlibc

References

Lightweight Unix-like systems
Microkernels
1,5-Diaza-3,7-diphosphacyclooctanes. 1,5-Diaza-3,7-diphosphacyclooctanes are organophosphorus compounds with the formula [R'NCHP(R)CH], often abbreviated PN.  They are air-sensitive white solids that are soluble in organic solvents.  The ligands exist as meso and d,l-diastereomers, but only the meso forms function as bidentate ligands.

Some metal-PN complexes catalyze the hydrogen evolution reaction as well as the oxidation of hydrogen (H).  The catalytic mechanism involves the interaction of substrate with the amines in the second coordination sphere.

Synthesis and reactions
The ligands are prepared by the condensation of a primary phosphine, formaldehyde, and a primary amine:

Diazadiphosphacyclooctanes function as chelating diphosphine ligands. Typical nickel complexes contain two such ligands are give the formula [Ni(PN)].

Cationic complexes of these  and related ligands often exhibit enhanced reactivity toward H2. These complexes serve as electrocatalysts for H2 evolution.

Related ligands
Azadiphosphacycloheptanes are a related family of diphosphines, but containing only one amine.  They are prepared by condensation of 1,2-bis(phenylphosphino)ethane, formaldehyde, and a primary amine. From the meso-isomer, typical nickel complexes contain two such ligands, i.e. [Ni(PNR')].  When bound to metals, these ligands adopt a conformation similar to that of 1,4-diazacycloheptanes.  Acyclic phosphine-amine ligands have the formula (RPCH)NR'.

References

Chelating agents
Diphosphines
Phosphorus heterocycles
Type 87 RCV. The Type 87 Reconnaissance Combat Vehicle, also simply known as "RCV" and nicknamed Black Eye (ブラックアイ), is a 6x6 wheeled reconnaissance vehicle designed and manufactured by Komatsu Limited and employed exclusively by the Japan Ground Self-Defense Force. The JGSDF continued to commission new units up until as recently as 2013.

History
After World War II, the United States provided the newly created Japan Ground Self-Defense Force with a number of variants of the M8 Greyhound armoured car. However, a relatively small number of these were employed due to concerns about the poor quality of roads in Japan, as many Japanese roads were unpaved and poorly maintained, limiting the feasibility of wheeled vehicles for military service. By 1982, Japanese infrastructure had greatly improved, motivating the development of the first armoured fighting vehicle developed and manufactured by Japanese industry for the Japanese armed forces, the successful Type 82 'Shikitsu' Command Vehicle. Tests for the Type 87 began in 1985 and the Type 87 would later finish developed by Komatsu based on the earlier Type 82.

Features
The Type 87 accommodates five crew members, two of which occupy the powered-traverse turret located in the center of the hull. The vehicle's door is on the left of the main body. The hull is made out of steel and is fully welded, and utilizes many of the same automotive components of the Type 82 and features power steering. The main armament is a Japanese version of the Oerlikon Contraves 25 millimeter autocannon produced under licence, which can fire various kinds of ammunition at up to 600 rounds per minute. Its armor, while sturdy enough to protect the vehicle and crew against small arms fire and grenade shrapnel, will not protect against heavier ordnance. It is well armed for its class but lacks truly amphibious capabilities, being only able to ford up to  of water.

Gallery

References

External links

www.army-technology.com
www.tanks-encyclopedia.com
perfiles.elgrancapitan.org
www.deagel.com

Armoured cars of Japan
Japan Ground Self-Defense Force
Wheeled amphibious armoured fighting vehicles
Wheeled reconnaissance vehicles
Reconnaissance vehicles of Japan
Six-wheeled vehicles
Military vehicles introduced in the 1980s
Magnus (computer algebra system). Magnus was a computer algebra system designed to solve problems in group theory. It was designed to run on Unix-like operating systems, as well as Windows. The development process was started in 1994 and the first public release appeared in 1997. The project was abandoned in August 2005. The unique feature of Magnus was  that it provided facilities for doing calculations in and about infinite groups.  Almost all symbolic algebra systems are oriented toward finite computations that are guaranteed to produce answers, given enough time and resources.  By contrast, Magnus was concerned with experiments and computations on infinite groups which in some cases are known to terminate, while in others are known to be generally recursively unsolvable.

Features of Magnus 
 A graphical object and method based user interface which  is easy and intuitive to use and naturally reflects the underlying  C++ classes;
 A kernel consisting of a ``session manager",  to communicate between the user interface or front-end and the back-end where computations are carried out, and ``computation managers" which direct the computations which may involve several algorithms and "information centers"  where information is stored;
 Facilities for performing several procedures in parallel and allocating resources to each of several simultaneous algorithms working on the same problem;
 Enumerators which generate sizable finite approximations to  both finite and infinite algebraic objects and make it possible  to carry out searches for answers  even when general algorithms may not exist;
 Innovative genetic algorithms;
 A package manager to ``plug in" more special purpose algorithms written by others;

References

Computer algebra systems