omniomni/omni-engineering huggingface dataset:
Temporal (video game). Temporal is a freeware videogame featuring platform and puzzle elements. The game was created by Israeli developer Oren Bartal using the Allegro library.

Gameplay

In Temporal, players control an unnamed robotical being which cannot recall his past and tries to figure out where he is, and his purpose.
 With only a propeller on his head, players control the quirky robot using only the arrow keys - interacting with the environment in order to advance and learn more about their surroundings.

 The game focuses on puzzle solving and the unraveling of a continuous story that require the player to use the environment in various ways, such as pushing boxes around, destroying floors, manipulating chemicals, using automated guns and activating terminals and trigger beams.

However, the core of the game requires the player to time travel back in time, and interact with his past selves in order to solve a puzzle.
Doing so might cause a temporal paradox that may create an impossible situation - however the game allows these transgressions and only gives a score penalty for such acts - often resulting in a butterfly effect.

Online rankings
Temporal features an online leader-board that allows players to upload their records and compete with each other, trying to find faster and better ways to solve the puzzles of the game.
The leader-boards can be accessed from the official site of the game.

Game replays
A built-in feature of the game records players as they play it, letting them share their unique solutions for the puzzles with other players, and also enable the player the ability to play against an existing replay to improve their current score.

Reception
Elena Santos of website Softonic commented "If you like original platform games, you will love Temporal – even if it requires more thinking than just a standard platform game."

References

External links
Soundtrack Composer Daniel Slabodar

2008 video games
Indie games
Platformers
Puzzle video games
Windows games
Windows-only games
Side-scrolling video games
Freeware games
Video games about time travel
Video games developed in Israel
List of equipment of the United States Air Force. The equipment of the United States Air Force can be subdivided into: aircraft, ammunition, weapons, and ground vehicles.

Munitions

Weapons

Vehicles

Aircraft
List of active United States Air Force aircraft
List of active United States military aircraft

Ground vehicles

Attire

Other equipment
CMU – 33A/P22P-18  - Air Force issue personal flotation device
Distributed Common Ground System- A weapons system which delivers information to Unmanned aerial vehicles

See also

 United States Air Force
 List of active United States military aircraft
 Equipment of the United States Armed Forces
 Equipment of the United States Navy
 Equipment of the United States Army
 Equipment of the United States Coast Guard
Equipment of the United States Marine Corps

References

Sources

Equipment of the United States Air Force
United States Air Force
Equipment
Superior Walls of America. Superior Walls of America, Ltd. is a company headquartered in New Holland, Pennsylvania, that specializes in the fabrication and installation of precast concrete foundation systems. It has installed more than 170,000 residential foundations through a North American distribution network since its founding in 1981.

Inc. included the company in its 2007 list of the fastest growing private companies in America.

Manufacturing process 
Production procedures follow a multiphase process in an off-site facility. First, production plans are created by CAD designers from architectural blueprints. Forms are prepared with steel rebar and styrofoam. The concrete mix is created at 5,000 psi and bonds directly to the foam insulation. The panels are then finished with the application of a vibrating screen to assist flow and fill potential voids, while creating greater surface consistency.

Installation 
Completed wall panels are transported to the job site via special carrier trucks and lowered into place by cranes. Crews install and permanently secure the foundation on a bed of crushed stone. Panels are joined together by stainless-steel bolts and sealed at joints with urethane sealant. The company claims that installations typically take less than one day and can be completed in adverse weather.

Certifications 
Leadership in Energy and Environmental Design (LEED)
National Green Building Standard
American Institute of Architects (AIA) and BuildingGreen GreenSpec Directory

Notable Projects 
 Grand Castle, a 520-unit apartment complex in Grandville, Michigan. The design is inspired by the Neuschwanstein Castle.
 Katzin Residence in Litchfield, Connecticut. Winner of the 2015 CT Zero Energy Challenge by Energize CT.

Television 
ABC's popular television series Extreme Makeover: Home Edition featured Superior Walls products in thirteen episodes, including the construction of the Harper family home in Lake City, Georgia in 2005.
PBS's television series This Old House utilized Superior Walls products for their Carlisle Project in 2005, Weston Project in 2008, and the Jamestown House in 2018.
DIY Network's television series Blog Cabin featured Superior Walls during the 2008 season for work on a cabin in Tennessee.

References

External links

Companies based in Lancaster County, Pennsylvania
American companies established in 1981
Construction and civil engineering companies of the United States
1981 establishments in Pennsylvania
Dyotropic reaction. A dyotropic reaction (from the Greek dyo, meaning two) in organic chemistry is a type of organic reaction and more specifically a pericyclic valence isomerization in which two sigma bonds simultaneously migrate intramolecularly. The reaction type is of some relevance to organic chemistry because it can explain how certain reactions occur and because it is a synthetic tool in the synthesis of organic molecules for example in total synthesis. It was first described by Manfred T. Reetz  in 1971 
In a type I reaction two migrating groups interchange their relative positions and a type II reaction   involves migration to new bonding sites without positional interchange.

Type I rearrangements
In type I rearrangements (Y-A-B-X conversion to X-A-B-Y) the two migrating groups are oriented trans to each other and as a result of the rearrangement they migrate to opposite sides. The first example of a dyotropic rearrangement involving a carbon-carbon bond was reported by Cyril A. Grob and Saul Winstein. They observed the interconversion of 2 bromine atoms in a certain steroid. 

In a straightforward example the two bromine atoms in 3-tert-butyl-trans-1,2-dibromohexane mutarotate by heating. In the transition state both bromine atoms connect symmetrically to both carbon atoms on opposite sides and the reaction is concerted. Stepwise mechanisms in dyotropic reactions have also been investigated. 

In organic synthesis an important application is the conversion of 4-substituted-gamma-lactones to butyrolactones. Type I dyotropic rearrangements also occur around carbon-oxygen bonds, such as the thermal equilibration of (R3Si1)R2C-O-Si2R3 to (R3Si2)R2C-O-Si1R3. The 1,2-Wittig rearrangement can also be considered an example of this reaction type. More dyotropic reactions are found involving N-O bonds and N-N bonds.

Type II rearrangements
Type II rearrangements often involve double hydrogen migration in a carbon skeleton. This reaction type can be found in certain transfer hydrogenations. An example is hydrogen transfer in syn-sesquinorbornene
disulfones.

References

Organic reactions
Methyl methacrylate (data page). This page provides supplementary chemical data on Methyl methacrylate.

Material Safety Data Sheet  

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source  such as SIRI, and follow its directions.

Structure and properties

Thermodynamic properties

Spectral data

Vapor pressure of liquid

Thermal conductivity of liquid

Chemical data pages
Chemical data pages cleanup
PICMG 2.9. PICMG 2.9 is a specification by PICMG that defines an implementation of a system management bus in a CompactPCI system. This system management bus uses an I2C hardware layer, and is based on the Intelligent Platform Management Interface (IPMI) and Intelligent Platform Management Bus (IPMB) specifications.

Status

Adopted : 2/2/2000

Current Revision : 1.0

ECN001 (Engineering Change Number) was adopted 5/20/2002

References

Open standards
PICMG standards
Benzoyl peroxide (data page). This page provides supplementary chemical data on benzoyl peroxide.

Material Safety Data Sheet  

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source  such as eChemPortal search query 94-36-0, and follow its directions.
 MSDS from Fisher Scientific (archived from SDSdata.org dead link), which was a redirect to archived page (archived from msdssearchengine.com dead link).

Structure and properties

Thermodynamic properties

Spectral data

References

Chemical data pages
Chemical data pages cleanup
Canadian Aeroplanes. Canadian Aeroplanes Ltd. was an aircraft manufacturing company located in Toronto, Ontario, Canada that built  aircraft for the Royal Flying Corps Canada during the First World War.

Formed on December 15, 1916, when the Imperial Munitions Board bought the Curtiss (Canada) aircraft operation in Toronto (opened in 1916 as Toronto Curtiss Aeroplanes) at a 6-acre facility at 1244 Dufferin Street south of Dupont Avenue in April 1917.

The public company was run by Sir Frank Wilton Baillie, an industrialist and financier.

Canadian Aeroplanes Ltd. manufactured the JN-4(Can) Canuck (1200), the Felixstowe F5L flying boat (30), and the Avro 504.

The plant remained opened until after the Armistice and was sold to Columbia Graphophone Company Limited in 1919. After 1924 it was sold to Dodge Brothers Canada Limited as a car assembly plant till 1928.

The industrial site was re-developed in the 1970s as the Galleria Shopping Centre and Wallace-Emerson Community Centre. The south side of the property is lined with homes.

Further reading

References 

Vehicle manufacturing companies established in 1916
Former defence companies of Canada
Defunct aircraft manufacturers of Canada
Manufacturing companies based in Toronto
Aviation history of Canada
1916 establishments in Ontario
Canadian companies established in 1916
Unmanned surface vehicle Piraya. Piraya (Swedish for piranha) is the name of an unmanned surface vehicle project under development by the Swedish shipyard company Kockums AB in collaboration with the Swedish military. 
The project is a small size boat with a 20 horsepower engine that runs without a human crew. The biggest difference between the Piraya and other unmanned surface vehicles is that several Pirayas can be operated at the same time by a single person. The vehicle has stealth capability just like the larger Visby class corvettes.
The vessels will be equipped with infrared sensors and hydrophones.

By October 2009, 3 boats were in testing with one more on the way.

Similar ships
 Protector USV 
 Spartan Scout

References

Unmanned surface vehicles
Naval ships of Sweden
Asa Lees. Asa Lees was a firm of textile machine manufacturers in Oldham, Lancashire. Their headquarters was the Soho Iron Works, Greenacres. It was second only in size to Platt Brothers.

Early history
Samuel Lees founded a roller making works in the 1790s, it was called the Soho Works. His second son Asa Lees (1816–62) inherited the premises. He expanded the business, exporting fustian power looms to St Petersberg. He abandoned looms to concentrate on manufacturing preparation and spinning machinery. The Soho Cotton mills was converted to a Mule carriage works.
Asa Lees became a limited company in 1868, four years after Platts and the shares were quoted on the Oldham share market until the 1890s. It never published its accounts, though its dividends were consistently higher than Platts, and remained profitable in 1928 when Platts made a loss. They were conservative in their trading, dealing only with reliable firms. They did not push for exports. They experienced rapid expansion in the 1880s under the management of Robert Taylor (1823–1912) and production peaked in 1906 when they were employing 3000 men.

Later history
In the recession of the 1930s, Platt Brothers, Howard and Bullough, Brooks and Doxey, Asa Lees, Dobson and Barlow, Joseph Hibbert, John Hetherington and Tweedales and Smalley merged to become  Textile Machinery Makers Ltd., but the individual units continued to trade under their own names until the 1970, when they were rationalised into one company called Platt UK Ltd. In 1991 the company name changed to Platt Saco Lowell.

The premises
Soho Iron Works - Greenacres SD 939053

References

Industrial Revolution
Companies based in Oldham
Spinning
English inventors
Textile manufacturers of England
Engineering companies of England
Textile machinery manufacturers
SalfaCorp. SalfaCorp  is the largest and one of the most important Chilean companies in the sector of construction and real estate and is an international company with offices in Santiago, Chile; Buenos Aires, Argentina; Bogota, Colombia; Lima, Peru; Shanghai, China and Petaling Jaya, Malaysia.

SalfaCorp leads the industrial assembly and civil work market in Chile. The company  operates in two business units: engineering and construction and property development. Engineering and construction is engaged in civil works, industrial assembly, new businesses such as industrial support, maritime works and, tunnels. Property development is engaged in the execution of all related activities from the design and coordination of projects including construction, marketing and after sales.

Aconcagua Inmobiliaria is a corporation from SalfaCorp, it has projects from Antofagasta to Puerto Montt. Is one of the most important Corporation.

References 

Real estate companies of Chile
Chilean companies established in 1929
Construction and civil engineering companies established in 1929
Real estate companies established in 1929
NZR S class. The NZR S class (later WAGR I class) was a class of seven 0-6-4T single Fairlie steam locomotives operated by New Zealand's Railways Department (NZR) between 1882 and 1927.

History
During the 1870s, the railway network in New Zealand was a fragmented system of light railway lines built in rough country where short, steep grades and tight curves were common. The Fairlie type of steam locomotive was well-suited to working in such conditions. Earlier double-ended engines (known as Double Fairlies) suffered from frame breakages while operating in the Wanganui region, leading to the requirement for conventional engines with Fairlie's maneuverability. The Avonside Engine Company of Bristol, England was able to solve the problem by providing both the R and S classes of Single Fairlies, 18 of the former in 1878-79 and 7 of the latter in 1880-81.

The S class locomotives were manufactured with Avonside's works numbers 1279-1285. They were considerably larger than the R class, weighing six tons more and carrying two tons more water.

The locomotives were introduced into service between 1882 and 1887 and soon gained a reputation for being good steamers. Originally assigned within the Whanganui district as well as the Wellington-Summit section of the Remutaka Ranges, they were also utilized in the Taranaki and Wairarapa districts. Their smooth ride and roomy cab made them popular with engine crews over their older Double Fairlie counterparts.

Withdrawals
In 1891, despite complaints of a lack of motive power, the resident chief mechanical engineer T.F. Rotheram made arrangements to ship three locomotives (Nos. 215-217) to the Western Australian Government Railways (WAGR). These were later known as the I class Nos. I25-I27 on the WAGR roster and continued in service until 1900. Over time, the remaining four members of the class were gradually phased out from NZR service, with one being withdrawn in March 1922, and the other three in March 1927. One, No. 212 was given away at no charge to the Manawatu County Council's Sanson Tramway for use as a spare.

See also
 NZR E class (1872)
 NZR B class (1874)
 NZR R class
 Locomotives of New Zealand

References

Citations

Bibliography 

 
 
 

S class
I WAGR class
0-6-4T locomotives
Avonside locomotives
Fairlie locomotives
3 ft 6 in gauge locomotives of New Zealand
Scrapped locomotives
Railway locomotives introduced in 1880
Passenger locomotives
Photomechanical effect. Photomechanical effect is the change in the shape of a material when it is exposed to light. This effect was first documented by Alexander Graham Bell in 1880. More recently, Kenji Uchino demonstrated that a photostrictive material could be used for legs in the construction of a miniature optically-powered "walker".

The most common mechanism of photomechanical effect is light-induced heating.

Photomechanical materials may be considered smart materials due to their natural change implemented by external factors.

See also 
 Smart materials

References

External links 
 The Nonlinear Optics Web Site

Mechanics
Materials science
Leading edge (disambiguation). Leading edge is the part of an aerofoil or wing which leads in movement through the air.

Leading edge may also refer to:

Aviation
Leading edge cuff, a fixed aerodynamic device employed on fixed-wing aircraft to modify the airfoil
Leading-edge extension, a small extension to an aircraft wing surface, forward of the leading edge
Leading edge inflatable kite, a single skin kite with inflatable bladders providing structure
Leading-edge slats, aerodynamic surfaces on the leading edge of the wings of fixed-wing aircraft
Leading edge slot, aerodynamic features of the wing of some airplanes to reduce the stall speed and promote good low-speed handling qualities

Companies
Leading Edge Air Foils, an American aircraft parts supplier
Leading Edge Aviation Services, an American aircraft maintenance, repair, and overhaul (MRO) company
Leading Edge Brands, soft drink marketing and manufacturing company based in Temple, Texas
Leading Edge Group, an Australian-owned buying group
 Leading Edge Computers, an Australian computer store, part of the above group
Leading Edge Products, a computer manufacturer in the 1980s and 1990s
Leading Edge Sports Car Company, a British sports car company in operation from 2002 to 2005 in Norfolk, England

Publications
Leading Edge (magazine), speculative fiction magazine published at Brigham Young University
The Leading Edge, a journal of the Society of Exploration Geophysicists

Other uses
Leading Edge Model D, an IBM-clone computer released by Leading Edge in about 1986
Leading Edge Partnership, programme for secondary schools in England
Leading edge, in electronics, the front edge of a digital signal, a particular signal edge
Leading edge, in marketing, a metaphor for State of the art, the highest level of development, as of a device, technique, or scientific field

See also
 Edge (disambiguation)
 Cutting edge (disambiguation)
 Bleeding Edge (disambiguation)
Tarbell Cassette Interface. The Tarbell Cassette Interface is an expansion card for use with the Altair 8800 early personal computer, or other systems using the Altair's S-100 bus. It was designed by Don Tarbell and sold by Tarbell Electronics starting in 1976. At the time, it was considered to be fast, reliable, and popular, and became a de facto standard for compact cassette data storage.

The Tarbell format is essentially Manchester encoding where a "1" bit in the original data is output as "01", and a "0" bit is output as "10". This is accomplished by reading a byte into a shift register which is periodically triggered by a 555 timer. Although the system can be run at any audible frequency, it is normally set to 3,000 Hz. As each data bit requires two output bits, the effective data rate is 1,500 bits per second, or 187 bytes per second. On reading, the system uses clock recovery to calculate the original data rate to account for tape stretch and other effects. This means the data can be recorded at any hardware-supported rate, and the manual suggests up to 560 bytes per second.

At the time of its release in 1976, the 300 bits per second Kansas City standard was also in use. Tarbell later modified the system to support these tapes. This increases the main oscillator from its normal 3,000 Hz to 4,800 Hz, and then writes either 00000000 to produce a single "1", or 01010101 to produce a "0". Because the system divides the basic rate by two, and each bit requires eight outputs, this produces the standard 300 bits per second output of the Kansas City standard.

Tarbell also sold other products, including TARBELL CASSETTE BASIC in 1978 and a Shugart Associates-compatible dual disk drive subsystem. The latter includes a Tarbell floppy disk interface, said to plug into any S-100 bus computer, introduced in 1979.

References

External links
The Tarbell Cassette Interface Manual
"The board that launched the company and made Tarbell a household word in the world of the S-100 bus" s100computers.com
Tarbell S-100 boards and docs

Computer storage devices
Home computer peripherals
Tape-based computer storage
Early microcomputers
Zener–Hollomon parameter. In materials science, the Zener–Hollomon parameter, typically denoted as Z, is used to relate changes in temperature or strain-rate to the stress-strain behavior of a material. It has been most extensively applied to the forming of steels at increased temperature, when creep is active. It is given by

where  is the strain rate, Q is the activation energy, R is the gas constant, and T is the temperature. The Zener–Hollomon parameter is also known as the temperature compensated strain rate, since the two are inversely proportional in the definition. It is named after Clarence Zener and John Herbert Hollomon, Jr. who established the formula based on the stress-strain behavior in steel.

When plastically deforming a material, the flow stress depends heavily on both the strain-rate and temperature. During forming processes, Z may help determine appropriate changes in strain-rate or temperature when the other variable is altered, in order to keep material flowing properly. Z has also been applied to some metals over a large range of strain rates and temperatures and shown comparable microstructures at the end-of-processing, as long as Z remained similar. This is because the relative activity of various deformation mechanisms is typically inversely proportional to temperature or strain-rate, such that decreasing strain rate or increasing temperature will increase Z and promote plastic deformation.

See also
Hollomon–Jaffe parameter

References

Metallurgy
Innovations for High Performance Microelectronics. Leibniz-Institut für innovative Mikroelektronik (English: Innovations for High Performance Microelectronics) is a German research institute located in Frankfurt (Oder), Brandenburg, Germany. The IHP was founded in 1983 as Institut für Halbleiterphysik (English: Institute for Semiconductor Physics), and is today part of the Gottfried Wilhelm Leibniz Scientific Community. The institute has four departments: System Design, Circuit Design, Technology and Materials Research.

See also
 Communicant Semiconductor Technologies
 Halbleiterwerk Frankfurt (Oder) (HFO, tr. "Semiconductor Factory in Frankfurt (Oder)")

References

External links 
 
 IHP Annual Report 2008 (pdf-file)
 Joint Lab IHP / BTU Cottbus

Research institutes in Germany
Leibniz Association
Frankfurt (Oder)
Brandenburg
Scientific organisations based in East Germany