omniomni/omni-engineering huggingface dataset:
Larkin Skylark. The Larkin Skylark is single-engine amphibious homebuilt aircraft. Only one aircraft was built and flown in 1973.

Design
The Skylark is a pusher-style design with a single Volkswagen air-cooled engine above and behind the fully enclosed cockpit. The cockpit seats two occupants in side-by-side configuration, with a large Plexiglas canopy curving around both occupants. The tail is a twin-boom arrangement attached at the trailing edge of the wings, allowing clearance for the pusher propeller above and within the booms. The landing gear is a tricycle arrangement with the nose gear positioned at the foremost point of the nose and the two main gear semi-recessed into teardrop-shaped fairings on the lower sides. The fuselage and landing gear are internally supported with an aluminum tube keel.
 
The Skylark is capable of amphibious operation when fitted with an optional V-shaped lower hull made out of fiberglass.

Specifications

See also

References

 International Aircraft Directory, 3rd edition ()

1970s United States civil utility aircraft
Flying boats
Homebuilt aircraft
Skylark
Single-engined pusher aircraft
Twin-boom aircraft
High-wing aircraft
Aircraft first flown in 1973
Roy Amara. Roy Charles Amara (7 April 1925 – 31 December 2007) was an American researcher, scientist, futurist and president of the Institute for the Future best known for coining Amara's law on the effect of technology. He held a BS in Management, an MS in the Arts and Sciences, and a PhD in Systems Engineering, and also worked at the Stanford Research Institute.

Amara's law 
His adage about forecasting the effects of technology has become known as Amara's law and states:

We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run.

The law has been used in explaining nanotechnology.

Selected bibliography

Books

Reports 
 
 
 
 
 
 
 
 
 
  Published in Conference proceedings 1978 Winter Simulation Conference (WSC 1978). Pdf.

References

1925 births
2007 deaths
American futurologists
American scientists
Elevators (drilling rig). Elevators, as developed for the drilling industry, are a hinged device with handles that are used to wrap around the tool joint of drill pipe, casing or lift nipples (for collars) to facilitate the lifting or lowering of them singly or of the drill string as a whole.

In practical use elevators are highly stressed components and require regular careful inspection. In practice, sets of elevators and a spare duplicate are required on-site for general operations. Their failure almost always stops operations.

To latch around a piece of pipework a set of elevators need a precise internal diameter, with an appropriately profiled shoulder to accommodate the lower profile of a tool joint. The latch mechanism has to prevent opening under radial loads of up to hundreds of tons. For some purposes (casing elevators, and loading pipe into and out of the derrick), the elevators also need to resist cross-axial loads of the weight of the pipe joints.

Oilfield terminology
Drilling technology
Reductio. Reductio is open source software written using the Java Programming Language from an idea that originated in a research paper called QuickCheck: A Lightweight Tool for Random Testing of Haskell Programs. Reductio and QuickCheck utilise a testing technique called Automated Specification-based Testing.

The primary objective of Reductio is to make testing as rigorous as possible, while alleviating developer effort through automation of many common testing tasks. Reductio includes usage examples that demonstrate how this objective has been met using both traditional Java 1.5 and Java 7 BGGA syntax as well as Scala programming language examples.

Example 

The following example uses Java 7 BGGA syntax to execute 100 unit tests on java.util.LinkedList. It asserts that when a list (x) is appended to another list (y), then the size() of the resulting list (xy) is equivalent to the sum of the size() of the two original lists.

Property p = property(arbLinkedList(arbInteger), arbLinkedList(arbInteger), {  
  LinkedList<Integer> x, LinkedList<Integer> y =>  
    prop(append(x, y).size() == x.size() + y.size())        
});

Citations and footnotes

External links 
 Reductio website
 Reductio User Manual
 Reductio RequalsHashCode
 A Case for Automated Testing
 Tests As Documentation

Software testing tools
Free software programmed in Java (programming language)
Free software testing tools
Dynabook Portégé. The Portégé is a range of business-oriented subnotebooks and ultrabooks manufactured by Dynabook Inc. From 1993 to 2018, the Portégé was manufactured by Toshiba's computer subsidiary before Sharp Corporation purchased majority interest in it.

Overview 

The Portégé series has a long line of several models, the latest being the 13.3 inch R30 series and the similar Z30 series. It is a lightweight series of laptops targeted to business professionals. Portégé laptops occasionally featured first-in-the-world technologies. R500 was one such machine, first of its kind in terms of form factor that provided an integrated DVD drive and was less than a kilogram in weight.

Portégés are designed to be mobile, with a focus on portability, style, and performance. Throughout their history, Portégé machines have been extolled due to their focus on long battery life. Furthermore, several high-end models in the Portégé line feature a Honeycomb Rib Structure which makes the laptop stiffer and more durable. Many also come with the optional feature of a solid-state drive, which is more reliable than a traditional hard disk drive, as well as USB 3.0, which allows for faster data transfer.

Earlier models include the Portégé M780 and R700. Similar to the M750, the M780 features a flip and twist screen, which means it can be used as a notebook or a tablet. The device has a 12.1-inch LED-backlit display with a resolution of 1200 × 800 pixels, and comes with a stylus for scribbling notes, which slots into the side of the chassis when not being used. The M780 also has a 320 GB hard disk, and can be customized or upgraded to Intel Core i7 processor and 8 GB RAM.

Early 2011, Intel Core released their new Sandy Bridge processors. Following that release, Toshiba has released its newest range of Portégé notebooks. Worldwide, there may be more models, however, the Australian range is known as the R830. All have minimum i5-2410M processor, 4 GB of DDR3 RAM and Windows 7 Pro.

Following Toshiba's corporate issues, the Portégé line was not updated in the U.S. market from 2016. It returned to that market by Dynabook three years later. The sale to Sharp was completed on October 1, 2018.

Models

References

Bibliography

 Toshiba Corporation. Toshiba Portégé 300CT User's Guide. Toshiba Corporation, 1997.

External links
 Toshiba Portégé

Computer-related introductions in 1993
Consumer electronics brands
Subnotebooks
Portege
Ultrabooks
Business laptops
Manganese(II) fluoride. Manganese(II) fluoride is the chemical compound composed of manganese and fluoride with the formula MnF2. It is a light pink solid, the light pink color being characteristic for manganese(II) compounds. It is made by treating manganese and diverse compounds of manganese(II) in hydrofluoric acid.  Like some other metal difluorides, MnF2 crystallizes in the rutile structure, which features octahedral Mn centers.

Uses
MnF2 is used in the manufacture of special kinds of glass and lasers.
It is a canonical example of uniaxial antiferromagnet (with Neel temperature of 68 K) which has been experimentally studied since early on.

References

Manganese(II) compounds
Fluorides
Metal halides
Comparison of HP graphing calculators. A graphing calculator is a class of hand-held calculator that is capable of plotting graphs and solving complex functions. While there are several companies that manufacture models of graphing calculators, Hewlett-Packard is a major manufacturer.

The following table compares general and technical information for Hewlett-Packard graphing calculators:

See also
 Comparison of Texas Instruments graphing calculators
Casio graphic calculators
 HP calculators
 List of Hewlett-Packard pocket calculators

References

HP calculators
HP calculators
Graphing calculators
Rosemount Inc.. Rosemount Inc. is a subsidiary of Emerson Electric Company. Its headquarters is located in Shakopee, Minnesota, where they manufacture measurement instrumentation such as pressure, temperature, level, DP flow, and wireless, as well as analytical and detection instrumentation for gas analysis, liquid analysis, combustion measurement and flame and gas detection.

History 
Rosemount Engineering was founded by Frank Werner, Robert Keppel, and Vernon Heath in the Minneapolis–Saint Paul area in 1956 with a focus on the aerospace industry, which was then growing rapidly under the expansion of the U.S. space program. In 1966, the company diversified to the commercial processing industry and became known as Rosemount Inc.

Rosemount's founders, Frank Werner and Vernon Heath, took up skiing in the 1950s, and decided to introduce a better ski boot. This led to the Rosemount ski boot of 1965, one of the first all-synthetic designs. The ski factory was sold to Bass Sports in 1968, but the Rosemount brand was used until it was purchased by Raichle in 1972.

Its success captured the attention of several high-tech companies. Rosemount was acquired by Emerson Electric Company in August 1976.

In 2013, Emerson announced the purchase of a new global headquarters location in Shakopee, Minnesota for its Rosemount branded products headquarters. Its  building was originally built for ADC Telecommunications, but was abandoned in 2001 prior to completion and had never been occupied.

The Rosemount brand is associated with Emerson, Emerson Automation Solutions, Rosemount, Rosemount Inc, and Rosemount Engineering.

References

External links
 https://web.archive.org/web/20081205002952/https://www.emersonprocess.com/rosemount/about/history.html

Companies based in Minnesota
Chanhassen, Minnesota
Electronics companies established in 1956
1956 establishments in Minnesota
1976 mergers and acquisitions
Tidewater architecture. Tidewater architecture is a style of architecture found mostly in coastal areas of the Southern United States. These homes, with large wraparound porches (or galleries) and hip roofs, were designed for wet, hot climates.

Tidewater homes have extensive porches sheltered by a broad hipped roof. The main roof extends over the porches without interruption. A crawlspace foundation allows for air circulation and protects the home from low-level flooding (this was important since tropical cyclones often flooded low-lying areas on middle and south Atlantic coasts). The large porches of Tidewater homes were also a reflection of the low-lying warm subtropical climate of the lower Atlantic coast – providing a breezy spot to enjoy the cooler air of the evening.

Tidewater style homes can be found along the Atlantic coastal plain from southeast Connecticut south to northern eastern Florida. However, they are the most common form of southern Delaware through south Georgia.

References

 American architectural styles
Britannia (cyclecar). The Britannia was a British 4-wheeled cyclecar made in 1913 and 1914 by Britannia Engineering Co. Ltd based in Nottingham.

The car was powered by an air-cooled, two-cylinder, two-stroke engine driving the rear wheels by a four-speed gearbox and belts. It cost GBP85.

See also
 List of car manufacturers of the United Kingdom

References 

Cyclecars
Defunct motor vehicle manufacturers of England
Companies based in Nottingham
Vehicle manufacturing companies established in 1913
B-17 Flying Fortress: The Mighty 8th. B-17 Flying Fortress: The Mighty 8th is a combat flight simulator developed by Wayward Design and published by Hasbro Interactive under the MicroProse brand in 2000 as a sequel to the 1992 flight simulator B-17 Flying Fortress World War II Bombers in Action. Tommo purchased the rights to this game and digitally publishes it through its Retroism brand in 2015.

Reception

The game received "favorable" reviews according to the review aggregation website Metacritic. In contrast, Samuel Bass of NextGen gave it a negative review, saying that the game was filled with several bugs, crashes and other technical issues, and felt that those issues made the game "unfinished". The only positive remarks that he gave are its "gorgeous" graphics and "impressive" physics, and noted the combined elements of roleplaying, strategy, and straight-up aerial combat.

References

External links
 

2000 video games
Hasbro Interactive games
MicroProse games
Single-player video games
Tommo games
Video games developed in the United Kingdom
Windows games
Windows-only games
World War II flight simulation video games
IAI I-View. The IAI I-View (Eye-View in some sources) is a small reconnaissance unmanned aerial vehicle developed in Israel in the early 21st century. Like other UAVs produced by IAI, it has fixed landing gear and an 18.6 kW (25 hp) piston engine. The Eye-View is also being promoted in civilian markets for forest fire warning, and in this form is appropriately known as the FireBird.

In December 2006, the I-View was selected as the winning tender in the JP129 requirement to provide a reconnaissance UAV for the Australian Defence Force. The contract for the project was canceled in September 2008 as a result of technical problems before any UAVs were delivered.

Under a $50 million deal, signed in April, Israel Aerospace Industries (IAI) will supply Russia with some of its second-tier UAVs, including the Bird-Eye 400 mini-UAV, the I-view MK150 tactical UAV and the Searcher Mk II medium-range UAV. This is the first Israeli sale of military platforms to Russia.

Specifications

Operators 

 
 8 systems purchased by Russia.

References

This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.

2000s Israeli military reconnaissance aircraft
Israel Aerospace Industries unmanned aerial vehicles
V-tail aircraft
Low-wing aircraft
Single-engined tractor aircraft
Aircraft with fixed tricycle landing gear
Single-engined piston aircraft
Robert P. Hoyt. Robert P. Hoyt (born September 15, 1968) is a physicist and engineer who is known for his work developing the SpiderFab architecture for in-space additive manufacture of spacecraft as well as for his invention of the Hoytether. He also originated the MXER Tether concept, which combines momentum-exchange techniques with electrodynamic reboost propulsion to enable a bolo tether system to serve as a fully reusable in-space upper stage for boosting many payloads from LEO to GEO or lunar trajectories.  He also has done work and collaborated with the late Robert L. Forward on electrodynamic space tethers for use for deorbiting space junk and interplanetary transport. He was one of the authors of a paper on using tethers for cis-lunar transportation.  The Cooper Hewitt Smithsonian Design Museum included a Hoytether designed and fabricated by Hoyt in an exhibition on high-tech textiles.

In addition to his work on space tethers, Hoyt has pioneered methods for using additive manufacturing to create structures and components for spacecraft, both on the ground and in orbit, and has worked to develop self-fabricating satellites under funding from DARPA and NASA.  Hoyt also invented the Structureless Antenna technology, which uses electrostatic forces to deploy ultra-lightweight large-aperture antenna reflectors, enabling small spacecraft to deploy and use large, high-gain antennas.  Other projects he has been involved with are an invention to drain the Van Allen radiation belts, development of robotic arms for small spacecraft, and development of tether-based methods to enable tiny nanosatellites to capture and de-spin asteroids and space debris objects.

Hoyt is the CEO and Chief Scientist of Tethers Unlimited, Inc.

Hoyt also co-founded ScienceOps in 2007, a company that develops custom scientific algorithms and software for a wide range of industries, including biotech, online advertising, and aerospace.  ScienceOps was acquired by Acquisio in 2012.

External links
The Space Show: Interview with Hoyt retrieved 4th Jan 2010

References

Space scientists
American aerospace engineers
20th-century American inventors
21st-century American inventors
Living people
1968 births
ModelSim. ModelSim is a multi-language environment by Siemens (previously developed by Mentor Graphics,) for simulation of hardware description languages such as VHDL, Verilog and SystemC, and includes a built-in C debugger. ModelSim can be used independently, or in conjunction with Intel Quartus Prime, PSIM, Xilinx ISE or Xilinx Vivado. Simulation is performed using the graphical user interface (GUI), or automatically using scripts.

Editions
Mentor HDL simulation products are offered in multiple editions, such as ModelSim PE and Questa Sim.

Questa Sim offers     high-performance and advanced debugging capabilities, while ModelSim PE is the entry-level simulator for hobbyists and students. Questa Sim is used in large multi-million gate designs, and is supported on Microsoft Windows and Linux, in 32-bit and 64-bit architectures.

ModelSim can also be used with MATLAB/Simulink, using Link for ModelSim. Link for ModelSim is a fast bidirectional co-simulation interface between Simulink and ModelSim. For such designs, MATLAB provides a numerical simulation toolset, while ModelSim provides tools to verify the hardware implementation & timing characteristics of the design.

Language support
ModelSim uses a unified kernel for simulation of all supported languages, and the method of debugging embedded C code is the same as VHDL or Verilog.

ModelSim and Questa Sim products enable simulation, verification and debugging for the following languages:
VHDL
Verilog
Verilog 2001
SystemVerilog
PSL
SystemC

See also
 Intel Quartus Prime
 Icarus Verilog
 List of HDL simulators
 NCSim
 Verilator
 Xilinx ISE
 Xilinx Vivado

References

External links
 

Computer-aided design software
Electronic design automation software
Digital electronics
Silver Arrow Sniper. 

The Silver Arrow Sniper is a reconnaissance UAV developed in Israel in the 1990s.

The Sniper's configuration resembles that of a conventional private aircraft with fixed tricycle landing gear, driven by a nose-mounted propeller and a 28.5 kW (38 horsepower) piston engine. Its only unusual feature is an upright vee tail.

Specifications

References
 Jane's Unmanned Aerial Vehicles and Targets

This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.

1990s Israeli military reconnaissance aircraft
Elbit unmanned aerial vehicles
V-tail aircraft
Single-engined pusher aircraft
Aircraft with fixed tricycle landing gear
Single-engined piston aircraft
Silver Arrow Micro-V. The Silver Arrow Mini-V (originally named the Micro-V) is a small reconnaissance UAV developed in Israel in the 1990s.

It is powered by twin 3 kW (4 horsepower) piston engines, one in a nacelle on each wing driving a pusher propeller. It has no landing gear. The Micro-V appears to be too small to carry a full sensor turret, carrying a miniaturized imager in a transparent section built into the middle of its fuselage.

Specifications

References

 Munson, Kenneth. "Unmanned Aerial Vehicles Directory: Part 1". Air International, July 1997, Vol 53 No 1. pp. 40–46.
 Manufacturer's website
 Jane's Unmanned Aerial Vehicles and Targets

This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.

1980s Israeli military reconnaissance aircraft
Elbit unmanned aerial vehicles
Twin-engined pusher aircraft
Aircraft first flown in 1989
High-wing aircraft
Cruciform tail aircraft
Chandler & Price. Chandler & Price was founded in 1881 in Cleveland, Ohio, by Harrison T. Chandler and William H. Price. They manufactured machinery for printers including a series of hand-fed platen jobbing presses, as well as an automatic feeder for these presses (the Rice Feeder), paper cutters, book presses, and assorted equipment. Despite dominating the industry in the 1930s, by the 1950s the offset printing industry had eclipsed the world of movable type printing, and only Chandler & Price and Brandtjen and Kluge continued to make open platen (Gordon) presses. Chandler & Price ceased production of presses in 1964.

There are three main generations of the Chandler & Price press, all distinguished by the style of the flywheel: Old Style (1884-1914; wavy spokes), New Style (1911-1964; plain spokes), or Craftsman (1921-1964; solid flywheel). The New Style made by Chandler & Price was such a popular press that The Practice Of Printing: Letterpress and Offset by Ralph Polk, the standard textbook for thousands of high school printing programs in the middle of the 20th century, used the press as its example when teaching students the basics of press operation.

External links

 C&P—Pressman's Favorite from the Amalgamated Printers' Association
 New style serial numbers and dates built
 Complete serial numbers list by year of manufacture for both old and new style as well as Craftsman

References

Printing press manufacturers
Manufacturing companies based in Cleveland
Defunct companies based in Cleveland
Manufacturing companies established in 1881
Manufacturing companies disestablished in 1964
1881 establishments in Ohio
1960s disestablishments in Ohio
Altec MART. 

The Altec MART (for Mini-Avion de Reconnaissance Télépiloté - "Remotely piloted reconnaissance mini-aeroplane") is a reconnaissance UAV developed in France during the 1980s.

The Mark II version served with French forces in the first Gulf War. It has a simple conventional configuration like that of a large RC model. It is catapult-launched, carries an imaging system, and appears to be recovered by parachute.

Altec Industries is now selling an improved version of the MART II, the S-MART. It is slightly heavier, has seven hours endurance, and can carry ELINT and jamming payloads.

Specifications (MART Mk II)

References
 Jane's Unmanned Aerial Vehicles and Targets

This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.

1980s French military reconnaissance aircraft
Unmanned military aircraft of France
MART
SAGEM Crecerelle. 

The Sagem Crecerelle ("Kestrel") is a reconnaissance UAV developed in France in the 1990s, based on the Meggitt Banshee target drone. Its configuration is much like that of the Banshee, with a pusher prop, a clipped delta wing, and a single tailfin, though its fuselage is more cylindrical. It is powered by a 20 kW (26 hp) rotary engine and has no landing gear, being recovered by parachute and airbags. The Crecerelle saw action with French forces during the Kosovo campaign in 1999. Meggitt sells much the same machine as the Spectre.

Specifications

References

 Jane's Unmanned Aerial Vehicles and Targets

This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.

Crecerelle
1990s French military reconnaissance aircraft
Unmanned military aircraft of France
Tailless delta-wing aircraft