omniomni/omni-engineering huggingface dataset:
Ron Jarvis. Ronald Guy Jarvis was a British locomotive engineer, born 5 November 1911 in Harpenden, Hertfordshire, England. Jarvis apprenticed at Derby Works under George Ivatt.

Career

Wartime work
During World War II Jarvis was sent to Turkey to oversee the assembly of the TCDD 45151 Class (LMS Stanier Class 8Fs), and then to India with William Stanier.

British Railways
After the war, he worked briefly under Ivatt before being transferred to Brighton Works on the Southern Region of the newly nationalised British Railways, replacing Oliver Bulleid. From 1956, the Merchant Navy and West Country/Battle of Britain classes of his predecessor were rebuilt to a design set out by Jarvis, removing all eccentricities that had plagued the maintenance of these locomotives.

High Speed Train project
Jarvis returned to Derby to oversee the development of the Class 43 InterCity 125 power cars.

Death
Jarvis died in Llandudno on 2 September 1994, and was buried at Llanbedr.

References

 

English railway mechanical engineers
Locomotive builders and designers
British Rail people
People from Harpenden
1911 births
1994 deaths
Tungsten (disambiguation). Tungsten is a chemical element with symbol W and atomic number 74.

Tungsten may also refer to:

Tungsten (band), Swedish heavy metal band
Tungsten (music), a type of phonograph pickup stylus
Tungsten (film), 2011 Greek film
Tungsten, Colorado, a ghost town
Tungsten, Northwest Territories, a Canadian townsite
Tungsten (Cantung) Airport, a Canadian private airport
Palm Tungsten, Palm Inc.'s product line of personal digital assistants
Operation Tungsten, World War II UK Royal Navy operation to sink the German battleship Tirpitz
Tungsten, a character from the novel Blart: The Boy Who Didn't Want to Save the World
Tungsten, a setting for color temperature on digital cameras
Tungsten Network, a global electronic invoicing firm
Nexus Q, a digital media player first demoed as Project Tungsten

See also

 Wolfram (disambiguation)
 W (disambiguation)
 Isotopes of tungsten
AECI. AECI Limited () is a South African chemicals group and is listed on the JSE Securities Exchange.

History
The company was registered as African Explosives and Industries  (AE&I) in 1924, with its headquarters in Johannesburg. It was formed as the result of a merger between the South African interests of Nobel Industries of the United Kingdom and the manufacturing arm of De Beers Consolidated Diamond Mines of Kimberley. The company's primary purpose was to provide blasting explosives and detonators to South African gold and diamond mines but AE&I was also the only South African producer of phosphatic fertilizer. In 1944 the company was renamed as African Explosives and Chemical Industries  (AECI). The company was listed on the JSE in 1966.

The AECI Group operates various sectors including  Mining solutions (explosives and initiating systems), Specialty fibres, Specialty chemicals and Real Estate market segments.

AECI's principal manufacturing sites are located in Johannesburg (mining solutions and specialty chemicals), Sasolburg (specialty chemicals), Durban (specialty chemicals) in South Africa.

AECI is a specialty product and services group of companies which claims to provide "value-adding solutions to customers through science, technology and industry knowledge".  The focus is on serving the mining and manufacturing sectors.  The Dulux decorative coatings business was disposed of in 2007 and the unprofitable segments of the SANS Fibres business were closed.

Construction is in progress on five projects related mainly to the mining sector, with capital expenditure of about R1.1 billion in total over the next two years.

AECI's core businesses serve both global and regional markets.  

Both African Explosives and Chemical Services have expanded their presence throughout sub-Saharan Africa.  The DetNet joint venture designs, produces and sells electronic detonators. In specialty chemicals a presence has been established in Brazil.

The realisation of land and the utilisation of built assets that have become surplus to AECI's requirements are managed in the property portfolio, led by Heartland Properties.  These activities offer land holdings near Johannesburg and Cape Town for commercial, residential and industrial development and leasing purposes.  By the end of 2007, 14.5 square kilometres of the 37.7 square kilometres of excess land available had been sold.

At the end of 2007, AECI had 6000 employees, many of whom are engaged in the Group's sales, technical service and distribution networks.

Company structure
The AECI group of companies consists of:
 African Explosives Limited
 Improchem (Pty) Limited
 Chemical Initiatives (Pty) Limited
 DetNet (Pty) Limited 
 Acacia
 SANS Fibres (Pty) Limited

See also 
List of companies traded on the JSE
List of companies of South Africa
Economy of South Africa

References

External links
AECI Annual Report 2011
AECI website 
DetNet website

Companies listed on the Johannesburg Stock Exchange
Manufacturing companies based in Johannesburg
Silver(I,III) oxide. Silver(I,III) oxide or tetrasilver tetroxide is the inorganic compound with the formula Ag4O4. It is a component of silver zinc batteries. It can be prepared by the slow addition of a silver(I) salt to a persulfate solution e.g. AgNO3 to a Na2S2O8 solution.  It adopts an unusual structure, being a mixed-valence compound.  It is a dark brown solid that decomposes with evolution of O2 in water.  It dissolves in concentrated nitric acid to give brown solutions containing the Ag2+ ion.

Structure
Although its empirical formula, AgO, suggests that the compound tetrasilver tetraoxide has silver in the +2 oxidation state, each unit has two monovalent silver atoms bonded to an oxygen atom, and two trivalent silver atoms bonded to three oxygen atoms, and it is in fact diamagnetic. X-ray diffraction studies show that the silver atoms adopt two different coordination environments, one having two collinear oxide neighbours and the other four coplanar oxide neighbours. tetrasilver tetraoxide is therefore formulated as AgIAgIIIO2 or Ag2O·Ag2O3. It has previously been called silver peroxide, which is incorrect since it does not contain the peroxide ion, O22−.

Uses

Tetrasilver tetroxide has been marketed under a trade name "Tetrasil."  In 2010, the FDA issued a warning letter to an American company concerning the firm's marketing of Tetrasil and Genisil ointments of tetrasilver tetroxide for herpes and similar conditions.

References

Silver compounds
Mixed valence compounds
Transition metal oxides
S12. S12 may refer to:

Aviation 
 Albany Municipal Airport (Oregon), in Linn County, Oregon, United States
 Letov Š-12, a Czechoslovakian prototype fighter aircraft
 Rans S-12 Airaile, an American civil utility aircraft
 SABCA S.XII, a Belgian passenger aircraft
 SIAI S.12, an Italian flying-boat
 Sikorsky S-12, a Russian trainer aircraft
 SPAD S.XII, a French biplane fighter
 Spencer S-12 Air Car, an American amphibious aircraft
 Stemme S12, a German motor glider

Rail and transit

Lines 
 S12 (Rhine-Ruhr S-Bahn), Germany
 S12 (St. Gallen S-Bahn), Switzerland
 S12 (ZVV), Zürich, Switzerland
 Line S12 (Milan suburban railway service), Italy

Locomotives 
 Baldwin S-12, a diesel-electric locomotive
 Sri Lanka Railways S12, a diesel multiple unit

Stations 
 Asari Station (Hokkaido), in Otaru, Hokkaido, Japan
 Bang Wa station, in Bangkok, Thailand
 Iyo-Nagahama Station, in Ōzu, Ehime Prefecture, Japan
 Kikukawa Station, in Sumida, Tokyo, Japan
 Mizuho Kuyakusho Station, in Mizuho-ku, Nagoya, Aichi Prefecture, Japan
 Myōdani Station, in Suma-ku, Kobe, Hyōgo Prefecture, Japan

Roads 
 Airport Expressway (Beijing), China
 Shanghai–Jiaxing–Huzhou Expressway, China
 S12 highway (Georgia)
 Expressway S12 (Poland)
 County Route S12 (California), United States

Vessels 
 , in service 1963–1972
 , in service 1972–1993
 , an armed yacht of the Royal Canadian Navy
 , a submarine of the Royal Navy
 , a submarine of the United States Navy

Other uses 
 S12 (classification), a disability swimming classification
 40S ribosomal protein S12
 British NVC community S12, a swamps and tall-herb fens community in the British National Vegetation Classification system
 Lenovo IdeaPad S12, a laptop
 Nissan Silvia (S12), a sports car
 S12: Do not keep the container sealed, a safety phrase
 Saiga-12, a Russian semi-automatic shotgun
 S12, a postcode district in Sheffield, England
Electric Pencil. Electric Pencil, released in December 1976 by Michael Shrayer, was the first word processor program for home computers.

Despite its initial market dominance, alternatives like WordStar and Magic Wand surpassed its popularity some time later.

History
In 1975, Michael Shrayer had moved to California after 20 years as a New York filmmaker. Enjoying assembling electronic kits, he purchased and assembled a MITS Altair 8800 computer, then modified a public domain assembler program for the Processor Technology Sol-20. Fellow computer hobbyists wanted to buy Shrayer's ESP-1 software, giving him an unexpected and lucrative new business.

Having never heard of a "word processor", Shrayer nonetheless believed that he should be able to use his computer, instead of a typewriter, to write documentation for his program, and thus wrote another program – the first word processor for a microcomputer – with which to do so. Electric Pencil for the Altair appeared in December 1976, and the version for the Sol-20 became especially popular. As no large network of computer stores existed, Shrayer formed Michael Shrayer Software Inc. – a decision he regretted, as naming the company after himself cost him his privacy – advertised in computer magazines such as BYTE, and sold the program via mail order. Electric Pencil required 8K of memory and an Intel 8080 or Zilog Z80 processor. As customers requested the program for their specific computers and operating systems he ported the word processor to each, resulting in 78 versions including the NorthStar Horizon and TRS-80.

Electric Pencil was the first program for microcomputers to implement a basic feature of word processors: word wrap, in which lines are adjusted as words are inserted and deleted.

Electric Pencil's market dominance might have continued had Shrayer continued to update it. Many imitators appeared, however, including WordStar and Magic Wand, both of which surpassed the original's popularity as Shrayer became bored with programming and sold its rights to others. Electric Pencil remained on the market into the 1980s, including a version for the IBM PC in 1983, but by 1982 James Fallows described it as "outdated and crude" compared to newer products like Perfect Writer and Scripsit.

Notable use
Jerry Pournelle is recognized as the first author to have written a published portion of a book using a word processor on a personal computer, using Electric Pencil for that purpose. In 1977, Pournelle was shown the program and decided it would help his productivity by making it easier to produce a final manuscript without requiring a complete retyping of edited pages.

References

Word processors
CP/M software
1976 software
DOS word processors
XML Professional Publisher. XML Professional Publisher (XPP) is an automated XML based publishing system that was developed out of a proprietary typesetting system.

XPP is a standards-based, content formatting and publishing application for the automatic composition, transformation, and rendering of XML, SGML or tagged ASCII content into high-quality output into PostScript and PDF format. It holds the XML or SGML in its native format and it is able to re-export the data after paper pagination, even if corrections have been made in XPP. The software is used worldwide to produce a wide variety of publications including Technical Documentation, Scientific, Medical Journals (STM) Directory, Dictionary and Legal loose-leaf publishing.

XPP was originally, in the early 1980s, a proprietary system which included the software and hardware. It was one of the first systems to combine high speed batch composition with an interactive mode displaying WYSIWYG pages. Originally Xyvision was built using its own display hardware as off-the-shelf hardware at that time was not up to the task of rapidly displaying pages. Over the years as readily available hardware became more powerful, Xyvision moved away from its own hardware to become a software-only vendor. Xyvision was a publicly held company and evolved in 1995 into the privately owned company called XyEnterprise. XyEnterprise currently employs some 80 people to develop and maintain the XPP software as well as supporting its other products, Contenta, an intelligent XML content management system and LiveContent, an information products delivery platform. XyEnterprise was subsequently bought by SDL and in turn SDL merged with RWS. XPP can be used as a stand-alone system or in conjunction with Contenta and LiveContent.

Each page within XPP is stored as a separate file, which allows XPP to open up a document at every page and reformat this page as a separate unit. XPP can even compose a single line as a separate unit. The ability to handle pages as individual objects means that it is well suited to loose-leaf publications.

The software also has a very active User group which helps communicate back to RWS what the users want to see in the future, and is usually incorporated into successive new versions.

Version 9.4 increases the use of CSS to do page layouts as well as the typographic styling introduced at 9.0.

References

External links
 RWS XPP
 Letterpart Ltd
 
 XyUser Group

Typesetting software
San Storm. The San Storm is a two-seat Roadster from San Motors India LTD.  of India that was introduced in 1998. It was designed by the French firm, Le Mans Group. It is powered by a 1149 cc Renault D7F engine driving the front wheels giving  and a top speed of . It has a double-skinned, fibreglass-reinforced tubular steel body and chassis, and the weight is only  giving it a quite satisfactory power-to-weight ratio. The time from 0 to  is given as 13 seconds. The San Storm is assembled in Bangalore while the engine is mated to the bodywork in Goa.

Export
In the early 2000s, the Reliant motor company of the United Kingdom began to concentrate on importing "speciality" vehicles rather than its traditional business designing and manufacturing a range of small (often three-wheeler) cars. As well as a number of "light vehicles" made by Piaggio and Ligier, the firm had plans to import the Storm and its cabriolet sister car. However, even though the company had start dates for the importation of these cars, the plan never came to fruition.

The convertible version of the Storm has been imported into the UK and sold by Dream Machines, a company based in Heathfield, East Sussex.

This subcompact car was available with different comfort and safety features like power window, power steering, child safety locks, front fog lights, rear defogger, leather seats, etc. This car comes with the luxury of air-conditioner.

Technical specifications
Dimensions
Overall Length :	 

Overall Width :

Overall Height 	 :
Wheel Base 	 :
Ground Clearance 	 :
Kerb Weight 	 :.
Gross Vehicle Weight 	:.
No of Doors :	2 door

Capacity
Seating Capacity :	2 person
Fuel Tank Capacity :	

Engine
Engine Type/Model: Renault D7 F
Displacement :	1149 cc
Power :	 @ 5250 rpm
Torque :	 @ 2500 rpm
Bore :	
Stroke :	
No of Cylinders :	4 cylinder
Fuel Type :	gasoline

Transmission
Transmission Type :	Manual
Gears/Speeds :	5 Gears

Suspensions
Front Suspension : Independent double wishbone with coil over shocks and anti roll bar
Rear Suspension :	Trailing link with coil over shocks and antiroll bar

Steering
Power Assisted :	Standard
Minimum Turning Radius :	5.6 m

Brakes
Front Brakes :	Ventilated disc with piston sliding calipers
Rear Brakes :	Drum Brake

Wheels & Tyres
Wheel Type :	tubeless tyres
Wheel Size :	5J X R13
Tyres :	155/70 R 14

Mileage
City: 11.9 Kmpl
Highway: 16 Kmpl

References

External links 
 San Motors official site
 Detailed Information on San Storm 1.2 with specifications and reviews

Car manufacturers of India
Front-wheel-drive sports cars
Companies based in Mumbai
Cars of India
Vehicle manufacturing companies established in 1998
Tellurium hexafluoride. Tellurium hexafluoride is the inorganic compound of tellurium and fluorine with the chemical formula TeF6. It is a colorless, highly toxic gas with an unpleasant odor.

Preparation 
Tellurium hexafluoride can be prepared by treating tellurium with fluorine gas at 150 °C. It can also be prepared by fluorination of TeO3 with bromine trifluoride. Upon heating, TeF4 disproportionates to give TeF6 and Te.

Properties 
Tellurium hexafluoride is a highly symmetric octahedral molecule.  Its physical properties resemble those of the hexafluorides of sulfur and selenium.  It is less volatile, however, due to the increase in polarizability.  At temperatures below −38 °C, tellurium hexafluoride condenses to a volatile white solid.

Reactivity 
Tellurium hexafluoride is much more chemically reactive than SF6. For example, TeF6 slowly hydrolyzes to Te(OH)6:
TeF6 + 6 H2O → Te(OH)6 + 6 HF
Treatment of tellurium hexafluoride with tetramethylammonium fluoride (Me4NF) gives, sequentially, the hepta- and octafluorides:
TeF6 + Me4NF → Me4NTeF7
Me4NTeF7 + Me4NF → (Me4N)2TeF8

Further sources 
W.C. Cooper, Tellurium, Van Nostrand Reinhold Company, New York, USA, 1971.
K.W. Bagnall, The Chemistry of Selenium, Tellurium and Polonium, Elsevier Publishing, New York, 1966.
R.T. Sanderson, Chemical Periodicity, Reinhold, New York, USA, 1960.
F. A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann; Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
G.J. Hathaway, N.H. Proctor, Chemical Hazards of the Workplace, 5th edition, Wiley-Interscience, New Jersey, 2004.

References

External links 
 Web Elements
 OSHA
 CDC – NIOSH Pocket Guide to Chemical Hazards

Tellurium halides
Hexafluorides
Octahedral compounds
Foul-smelling chemicals
Tellurium(VI) compounds
Raceway pond. A raceway pond is a shallow artificial pond used in the cultivation of algae.

The pond is divided into a rectangular grid, with each rectangle containing one channel in the shape of an oval, like an automotive raceway circuit. From above, many ponds look like a maze. Each rectangle contains a paddle wheel to make the water flow continuously around the circuit.

The Department of Energy's Aquatic Species Program experimented with raceway ponds for the cultivation of algae. Many commercial producers of spirulina still use raceway ponds as their primary method of cultivation. Raceway ponds were used for removal of lead from waste water using biosorption by Spirulina (Arthospira) sp.

See also
 Algaculture
 Algae
 Aquaculture
 Aquatic Species Program
 Microbiofuels
 Pond
 Raceway (aquaculture)

References

Aquaculture
Ponds
Port operator. A port operator is a port authority or company that contracts with the port authority to move cargo through a port at a contracted minimum level of productivity. They may be state-owned (particularly for port authorities) or privately run.

The work involves managing the movement of cargo containers between cargo ships, trucks and freight trains and optimizing the flow of goods through customs to minimize the amount of time a ship spends in port.  Maintaining efficiency involves managing and upgrading gantry cranes, berths, waterways, roads, storage facilities, communication equipment, computer systems and dockworkers' union contracts.  The port operator also manages paperwork, leases, safety and port security.

Largest port operators
This is a list of the world's largest port operators.

References
Modo (wireless device). Modo (stylized in all lowercase) was a wireless device developed by Scout Electromedia. Utilizing pager networks, the device was designed to provide city-specific "lifestyle" content, such as reviews of restaurants or bars and movie listings, in addition to original curated content by Scout's developers.

Officially announced on August 28, 2000, targeting a "young hipster" urban demographic and a reported $20 million spent on marketing, the Modo was released in September 2000 in two US cities, New York and San Francisco, with plans to roll out in other major urban areas such as Los Angeles and Chicago.

After not receiving additional funding and the firing of one of its chief executives, Geoff Pitfield. Scout Electromedia was liquidated and the Modo, along with its wireless service, was discontinued in October 2000, just one month after its release and one day before its Los Angeles launch. It has been noted as one of the most notorious dot-com bubble failed ventures.

History 
After the company was funded, one of its venture backers, Flatiron, backed a similar company, Vindigo, which aimed to bring a broader range of information to the PalmPilot platform. Because of Scout's focus on delivering mobile information to a young design-conscious audience that had no interest in using a traditional PDA, Vindigo was considered by the backers to be a complementary product offering. Scout Electromedia received an estimated $40 million to develop and market the Modo.

The industrial design was done by IDEO (which took an investment in the startup), while the device software was based on Pixo's operating system (the OS that later powered the Apple iPod). All of the electrical engineering, wireless, and system development were done in-house by the company.

The Modo was advertised heavily in its target markets of Los Angeles, New York, Chicago and San Francisco, and was sold online via its website and in retailers such as DKNY and Virgin Megastores. The product was launched in the late summer of 2000 and made it to two of the four planned cities, but only shipped for one day in San Francisco. While the stock sold out, reviews of the device were mixed: while praising the device design and concept, criticisms arose due to its one-way service, its limited city availability, and comparisons to competitors Vindigo and Palm.

On October 20, 2000, Geoff Pitfield, Scout Electromedia's CEO, was fired, and on October 24, 2000, the company was shut down, stopping all developments and service on the Modo. Over time, it came out that the company's venture backers had left the company to die as many of them experienced their own financial problems due to the dot-com bubble (notably Idealab, Flatiron, and Chase Capital).

See also 

 Microsoft Kin – another short lived device marketed towards a young adult demographic

References

External links
Idealab's Bill Gross discussing Scout in BusinessWeek
Dennis Crowley's Modo Tribute Page
Modo preview video by Scout Electromedia (2000) on Vimeo
IDEO Case Study for Scout Electromedia

Pagers
Myasishchev M-101T. The Myasishchev M-101T is a Russian business class aircraft, designed by Myasishchev and built by Sokol. The aircraft was first flown on 31 March 1995.

Operators
 
 Dexter Air Taxi (3 aircraft).
 3 more aircraft operated by Buguruslansk Civil Aviation School.
1 aircraft RA15106, was demonstrated in 2004 in South Africa by ROSAVIA and flown at multiple airshows in South Africa. These demonstrations were flown by Yurij Polyakov and South African born Andrew Cross. The project generated a lot of interest but did not sell because the asking price was too high. When the project ended the aircraft was ferried back to Russia by Yurij Polyakov.

Specifications

See also

References

Further reading
 Taylor, Michael J.H. Brassey's World Aircraft & Systems Directory 1999/2000. London:Brassey's, 1999. .

External links

 Class Struggle

M-101T
1990s Soviet and Russian business aircraft
Single-engined tractor aircraft
Single-engined turboprop aircraft
Low-wing aircraft
Aircraft first flown in 1995