omniomni/omni-engineering huggingface dataset:
Boris Cheranovsky. Boris Ivanovich Cheranovsky (, alternatively romanized as Chyeranovskii; 1  (13) July 1896 – 17 December 1960) was a Soviet aircraft designer, notable for creating aircraft with a characteristic tailless parabolic wing — the BICh-1 and BICh-2 gliders from 1924, and the powered BICh-3 later.

B. I. Cheranovsky was born on either 1 or 13 July 1896 in Pavlovychi, Ukraine.  By profession he was a painter and sculptor, but in 1920 became interested in aviation. In 1921, for the first time, he proposed a "flying wing" aircraft. Colleagues did not believe the idea could be implemented, but within two years, Cheranovsky had completed the relevant work and presented prototypes of the technology. Tests at the airfield began on April 1, 1923, with the BICh-1. From 1924 to 1927 he studied at the Air Force Academy. Throughout his career he focused in the design and construction of flying-wing aircraft.  For his services to aviation, Cheranovsky was awarded the Order of the Red Star.  He died in Moscow, Soviet Union, on 17 December 1960.

See also 
List of aerospace engineers

References 

1896 births
1960 deaths
Soviet engineers
Aircraft designers
John Dove Isaacs. John Dove Isaacs III (March 28, 1913 – June 6, 1980) was an American engineer and oceanographer.

He became full professor at the University of California, San Diego, which honored him posthumously by creating the John Dove Isaacs Chair in Natural Philosophy. 
Isaacs Hall at Scripps Institution of Oceanography was named to honor him.

He was honored by being elected to the American Geophysical Union, the National Academy of Sciences, the National Academy of Engineering, and the American Academy of Arts and Sciences.

References

https://web.archive.org/web/20110308032222/http://www-csgc.ucsd.edu/EDUCATION/IsaacsBio.html

External links
Willard Bascom, "John Dove Isaacs III", Biographical Memoirs of the National Academy of Sciences (1987) 

1913 births
1980 deaths
University of San Diego alumni
Engineers from California
University of California, San Diego faculty
Members of the United States National Academy of Sciences
Members of the United States National Academy of Engineering
American oceanographers
20th-century American engineers
Interdisciplinary Telecommunications Program. The Interdisciplinary Telecommunications Program (its acronym is ITP) was a part of the University of Colorado at Boulder and offered graduate degrees in telecommunications: a Doctor of Philosophy and Master of Science in Telecommunications and a Master of Engineering in Telecommunications.  It was the oldest telecommunications program in the United States and was founded in 1971 by Frank S. Barnes (Engineering) and George Codding (deceased, International Relations).  Since its inception, ITP took an interdisciplinary approach to telecommunications, involving the study of engineering, law, politics, economics and business.  Over the course of the past 35 years, ITP has graduated approximately 2,000 alumni who are in various positions around the world as CEOs, government officials, and management.

In 2004, ITP founder Frank S. Barnes was awarded the prestigious Gordon Prize for having founded ITP due to its innovative character and the influence that it has had within academia and industry.  As the first program of its kind in the United States, it broke ground for the many academic programs that followed. When Peterson's first started listing telecommunications programs in 1996, the director of ITP was asked to write the introduction on the topic for Peterson's publisher.  There is no question that many other prominent university programs have been directly influenced by ITP.  For further information, there is now a consortium of universities that teach the telecommunications discipline, known as ITERA.

The New ITP  
In 2019, ITP was incorporated into the Department of Computer Science.  This merge resulted in ITP being separated into two individual degrees:  1) Network Engineering and 2) Technology, Cybersecurity and Policy (TCP).  The hands-on, technical piece of ITP was branched to form a Professional Master's of Science in Network Engineering degree, and the cybersecurity focus of ITP was branched into a new degree (TCP).  These new degrees build on the historical success of CU Boulder’s  ITP, and are a well-recognized source of talented individuals for the communications industry, with employment success rates approaching 100%.

Prominent alumni 
 Sharon K. Black, ITP's first graduate (class of 1971) international lawyer, adjunct professor and author of the book Telecommunications Law in the Internet Age ()
 Claus F. Kroeger, Senior Vice President, Operations, Cox Communications
 Michelle A. McClure, lawyer and partner at the Washington D.C. communications law firm Irwin, Campbell & Tannenwald, P.C.
 Thomas E Moore, founder and former CEO of Wild Blue
 David Weiss, former Chairman, President and CEO of StorageTek (now part of Sun Microsystems)
 Hari V. Krishnan, CEO, PropertyGuru Group. ex-MD, APAC for LinkedIn (hired as first employee based in Asia).

External links
Network Engineering Home Page
Bernard M. Gordon Prize Home Page

University of Colorado Boulder
Telecommunication education
Mitsubishi Aircraft Corporation. , abbreviated MITAC, was a Japanese company that developed, produced, sold and supported the Mitsubishi SpaceJet (formerly MRJ) passenger airliners. The manufacturing of the aircraft was planned to be carried out by parent company Mitsubishi Heavy Industries (MHI). In February 2023, its parent company MHI terminated the Spacejet project.

History 
MITAC was established on 1 April 2008. MHI owned 64% of the shares of the company, while Toyota Motor Corporation and Mitsubishi Corporation each owned 10% of the shares; other shareholders include state-owned Development Bank of Japan, Sumitomo Corporation and Mitsui & Co.

MITAC is headquartered at Nagoya Airfield in Komaki in Aichi Prefecture, adjacent to the MRJ production facilities. It has branch offices in Nagoya and Tokyo, which are co-located with MHI offices. MITAC has overseas subsidiaries based in Amsterdam and in Renton, Washington.

CEO Teruaki Kawai has indicated that the company will not produce aircraft larger than the MRJ, as MHI is a major supplier to Boeing (including manufacturing wings for the Boeing 787), and the group generally lacks the capability to compete with Airbus and Boeing.

Following Bombardier Aviation's divestment of its CSeries and Dash 8 programmes, on 25 June 2019, MHI announced the acquisition of Bombardier's CRJ programme, in a deal expected to close in the first half of 2020, subject to regulatory approval. MHI will benefit from Bombardier's global expertise in areas ranging from engineering and certification to customer relations and support, boosting its SpaceJet programme, and potentially enabling the SpaceJet to be produced in North America.

The deal includes two service centres in Canada and two in the US, as well as the type certificates for the CRJ. Bombardier will retain its assembly facility at Mirabel, near Montreal, Canada, and will continue to produce the CRJ on behalf of MHI until the current order backlog is complete.

In September 2019, MITAC announced the creation of the "SpaceJet Montreal Centre" in the Boisbriand suburb of Montreal, initially employing around 100 staff to participate in Spacejet M90 certification and entry-into-service activities. Flight testing was being conducted from a site in Moses Lake, Washington, in partnership with AeroTEC, before being stopped in May 2020 as a result of budget cuts in light of the COVID-19 pandemic, with uncertainty about whether testing will eventually resume.

On 6 February 2023, Mitsubishi Heavy Industries terminated the Spacejet project along with its plans to enter the jetliner business and planned to liquidate its Mitsubishi Aircraft Corporation subsidiary. As of April 25 2023, the company was renamed MSJ Asset Management Company as part of the liquidation and its website was taken offline.

Products

 Mitsubishi SpaceJet (MRJ)

References

External links
 

Aircraft manufacturers of Japan
Manufacturing companies based in Nagoya
Mitsubishi Heavy Industries divisions and subsidiaries
Japanese companies established in 2008
Vehicle manufacturing companies established in 2008
Japanese companies disestablished in 2023
Aeroprakt A-26 Vulcan. The Aeroprakt A-26 Vulcan is a light twin engine aircraft developed from a modified Aeroprakt A-20 light single aircraft. Some models imported to the United States are registered as Spectrum Aircraft SA-26 Vulcan.

Design and development
The A-26 has an extra 3° degree sweepback of the wings from its single engine counterpart, the A-20. The aircraft is powered by two Rotax 503 (eventually Rotax 582) engines in a pusher configuration.

Operational history
An example of the A-26 was demonstrated at the 2000 Experimental Aircraft Association AirVenture airshow in Oshkosh, Wisconsin. Spectrum Aircraft imported versions for the American market.

Variants
The Aeroprakt A-36 Vulcan is an updated factory built Rotax 912S powered twin.

Specifications (variant specified)

References

External links

2000s Ukrainian ultralight aircraft
Vulcan
Twin-engined pusher aircraft
High-wing aircraft
Giant Robot Project. The Giant Robot Project is an undertaking by Canadian inventor Jaimie Mantzel to construct a large six-legged robot.

The robot is approximately  in height with a similar dimension in width and is made primarily from scrap metal and aluminum tubing. The machine is powered by a central electric motor system that mechanically transfers energy to the legs. To walk, the machine lifts three of its legs forward while pushing the remaining three legs backward against the ground in an alternating cycle. The system is designed in such a way that it can seamlessly adjust its direction of movement based on the rotation of the drive section located at the center of the machine. , the robot had no onboard power system in place yet and during initial testing had to be tethered to external power sources.

Fabrication of the full-scale robot began in 2007 and intermittently continued until December 2010 when an initial and short "test drive" was taken. This brief test demonstrated the structural soundness of the design in general but also highlighted material weaknesses. These currently are being or have since been improved upon through continual upgrades or alterations of the robot.

Complementing the construction, a series of video logs of progress made on the project have been uploaded to YouTube. Because of this, Mantzel has gained a following of supporters who occasionally make material or financial contributions to the Giant Robot Project.

A smaller version of the robot referred to as the 'Spider Tank' is also in development and serves as a scale model for many of the technologies and design features incorporated into the larger robot.

Notes and references

External links 
ourherald.com: Living ‘Off the Grid’ In South Royalton
wcax.com: WCAX News Story 
robotsnob.com: Interview with Mantzel about the project
youtube.com: Mantzel's YouTube Channel

adventurebuilders.club: Mantzel's Adventure Builder Club Website

Entertainment robots
2007 robots
Robots of the United States
Hexapod robots
How to Build a Time Machine. How to Build a Time Machine by Paul Davies is a 2002 physics book that discusses the possibilities of time travel. It was published by Penguin Books. In this book, Davies discusses why time is relative, how this relates to time travel, and then lays out a "blueprint" for a real time machine. This is explored whilst also discussing paradoxes which allow a more constructive approach. It is a realistic, albeit fantastical, book.

References

See also

About Time

Penguin Books books
2003 non-fiction books
Popular physics books
Literature about time travel
Books by Paul Davies
Kinetic Traction Systems. Kinetic Traction Systems is a business founded in November 2010, producing Flywheel energy storage systems for electric railways and grid storage.

Technology
Kinetic Traction Systems' main product uses flywheel energy storage technology developed by Pentadyne Power Corp; staff from Pentadyne joined Kinetic. The 36000 RPM flywheels are originally based on uranium centrifuge technology developed by Urenco

KTS' rail-side device uses a brushless DC motor/generator to spin up the flywheel to store electrical energy (for instance, from regenerative braking on trains) as kinetic energy; later to be converted back to electrical energy on demand.

Uses
This system allows significant energy-efficiency improvements in urban rail systems; it has been used by NYC Transit and the London Underground.

Their grid storage system helps stabilise the microgrid on the island of Eigg

Capacity
Usable stored energy is approximately . The devices can provide bursts of .

References

Companies based in California
American companies established in 2010
Electric rail transport
Flywheels
2010 establishments in California
Serge Mayifuila. Serge Mayifuila is a Congolese-born business owner, philanthropist and a father of one child. He studied Mechanical Engineering at the University of Maryland, Baltimore County. He owns congoglobal.com and is a member of Arche de L'Unite and APEMA, two Congolese NGOs.

References

External links 
 UMBC 
 EWB-UMBC:
 Congoglobal 
 APEMA:

Democratic Republic of the Congo businesspeople
Year of birth missing (living people)
Place of birth missing (living people)
University of Maryland, Baltimore County alumni
Living people
Apache Roller. Apache Roller is a Java-based open-source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small". Roller was originally written by Dave Johnson in 2002 for a magazine article on open source development tools, but became popular at FreeRoller.net (now JRoller.com) and was later chosen to drive the employee blogs at Sun Microsystems, Inc. and IBM developerWorks blogs.

On April 23, 2007, Roller project graduated from incubator, so it became an official project of the Apache Software Foundation and it was released 3.1 version, first official release.

References

External links
 Roller website

Roller
Free content management systems
Blog software
Free software programmed in Java (programming language)
Challenger trucks. Challenger Manufacturing Ltd. was a British Columbia-based Canadian manufacturer of heavy trucks, that built both highway and off road trucks, particularly for the logging industry, under the Challenger, Custom Built for Heavy Industry, brand.

Challenger was founded by John Casanave in Port Alberni, Vancouver Island in 1987. They began to rebuild Hayes, Pacific and Kenworth heavy trucks, and later moved to manufacture sturdy, easy to maintain trucks using OEM components, like Mack or Cummins engines.

Challenger was active from 1987 to 1994, but only 14 units seem have been made. A later attempt in Australia to revive the make, marketing it as Extreme Heavy Duty Trucks, was eventually unsuccessful.

References

External links
Detailed information on Challenger trucks
Australian Challenger trucks PPT

Truck manufacturers of Canada
Defunct truck manufacturers
Macor. Macor is the trademark for a machinable glass-ceramic developed and sold by Corning Inc. It is a white material that looks somewhat like porcelain. Macor is a good thermal insulator and is stable up to temperatures of 1000 °C, with very little thermal expansion or outgassing. It can be machined using standard metalworking tools.

Composition
Macor is made up of fluorphlogopite mica in a borosilicate glass matrix. Its composition is roughly: 46% silica (SiO2), 17% magnesium oxide (MgO), 16% aluminium oxide (Al2O3), 10% potassium oxide (K2O), 7% boron trioxide (B2O3), 4% fluorine (F).

Properties
Macor has a density of 2.52 g/cm3, a Young's modulus of 66.9 GPa at 25 °C, a specific stiffness of 26.55 m2s−2, a Poisson’s Ratio of 0.29 and a thermal conductivity of 1.46 W/(m·K). It has a low-temperature (25 to 300 °C) thermal expansion of 9.3 K−1. Its compressive strength is 50 lb/in2 (~350 MPa). Nominal engineering properties are comparable to borosilicate glass.

Extremely machinable, Macor offers tight-tolerance capabilities, allowing complicated shape design (optimal performances up to
±0.013 mm for dimensions, < 0.5 μm for finished surface and up to 0.013 μm for polished surface). Macor remains continuously stable at 800 °C, with a maximum peak at 1000 °C under no load, and unlike ductile materials, doesn’t creep or deform.
Its coefficient of thermal expansion readily matches most metals and sealing glasses.  As an electric insulator, particularly at high temperatures, it is excellent at high voltages and a broad spectrum of frequencies.

Macor comes in a standard size maxi slab (about ). Components, bars, rods and plates can be machined within the size of this slab (hand tools can be used).

Applications

Macor is used in the following applications:
 Constant and ultra-high vacuum environments
 Laser technology
 Semiconductor / electronic
 Aerospace / space
 Medical/ laboratory equipment
 Fixtures
 Chemical
 Automobile
 Military
 Nuclear

Safety

There are no major safety concerns or toxic effects associated with Macor. The dust created when machining it can be an irritant, and inhalation should be avoided.

Machining guidelines

Key factors for successful machining are proper machining speeds and coolant. Macor can be machined with high-speed steel tools, but carbide tools are recommended for longer wear. Best results achieved by using a water-soluble coolant (such as Cimstar 40 – Pink) especially formulated for cutting and grinding glass or ceramics. Note: No post-firing is required after machining.

References

Glass-ceramics
Glass trademarks and brands
Swift S-1. The Swift S-1 is a single seat aerobatic glider manufactured by Polish company Swift Ltd.

Design and development
Edward Margański, Jerzy Cisowski and Jerzy Makula developed the Swift at Bielsko-Biała from the SZD-21-2b Kobuz 3. The prototype first flew in 1991.

The glider is made of glass-fibre epoxy composite. It is very strong (stressed for plus and minus 10g) and manoeuvrable (a roll takes less than 4 seconds). Larger tips to increase the span to 15m were designed but not made. It has a retractable undercarriage.

Specifications

Gallery

Comparable aircraft
Celair GA-1 Celstar
MDM-1 Fox
PZL Bielsko SZD-59

References

External links
 GoPro Hero 2 Swift S-1 2012 by Luca Bertossio in 3D

Glider aircraft
1990s Polish sailplanes
Articles containing video clips
Aircraft first flown in 1991
Bis(2-ethylhexyl) adipate. Bis(2-ethylhexyl) adipate or DEHA or DOA is an organic compound with the formula (CH2CH2CO2C8H17)2. It is the diester of 2-ethylhexanol and adipic acid.  It is a colorless oily liquid.

DEHA is sometimes called "dioctyl adipate", incorrectly.  Another name is di(2-ethylhexyl) adipate. The abbreviation DOA has been unfortunately used for both Bis(-2-ethylhexyl)-adipate and dioctyl adipate

Use
As well as related diesters derived from octanol, decanol, isodecanol, etc., it is used as a plasticizer.

DEHA is used as a hydraulic fluid, and a component of aircraft lubricants. It is sometimes also used as an ingredient in PVC-based plastic wrap.

Toxicity
DEHA has very low toxicity. The LD50 is estimated at 900 mg/kg (rat, i.v.).

According to the International Agency for Research on Cancer (IARC), it is "not classifiable as to its carcinogenicity to humans (Group 3)."

References

Adipate esters
Plasticizers
Ester solvents
2-Ethylhexyl esters
Z-RAM. Z-RAM is a tradename of a now-obsolete dynamic random-access memory technology that did not require a capacitor to maintain its state. Z-RAM was developed between 2002 and 2010 by a now-defunct company named Innovative Silicon.

Z-RAM relies on the floating body effect, an artifact of the silicon on insulator (SOI) process which places transistors in isolated tubs (the transistor body voltages "float" with respect to the wafer substrate beneath the tubs). The floating body effect causes a variable capacitance to appear between the bottom of the tub and the underlying substrate. The floating body effect is usually a parasitic effect that bedevils circuit designs, but also allows a DRAM-like cell to be built without adding a separate capacitor, the floating body effect then taking the place of the conventional capacitor. Because the capacitor is located under the transistor (instead of adjacent to, or above the transistor as in conventional DRAMs), another connotation of the name "Z-RAM" is that it extends in the negative z-direction.

Theoretically, a reduced cell size would have allowed denser storage, which in turn could (when used with large blocks) have improved access times by reducing the physical distance that data would have to travel to exit a block. For a large cache memory (as typically found in a high-performance microprocessor), Z-RAM would then have been potentially as fast as the SRAM used for conventional on-processor (L1/L2) caches, but with lower surface area (and thus cost). However, with advances in manufacturing techniques for conventional SRAM (most importantly, the transition to 32nm fabrication node), Z-RAM lost its size advantage.

Although AMD licensed the second generation Z-RAM in 2006, the processor manufacturer abandoned its Z-RAM plans in January 2010. Similarly, DRAM producer Hynix had also licensed Z-RAM for use in DRAM chips in 2007, and Innovative Silicon announced it was jointly developing a non-SOI version of Z-RAM that could be manufactured on lower cost bulk CMOS technology in March 2010, but Innovative Silicon closed on June 29, 2010. Its patent portfolio was acquired by Micron Technology in December 2010.

References

Types of RAM
Randall Beer. Randall D. Beer is a professor of cognitive science, computer science, and informatics at Indiana University.  He was previously at Case Western Reserve University. His primary research interest is in understanding how coordinated behavior arises from the neurodynamics of an animal's nervous system, its body and its environment.  He works on the evolution and analysis of dynamical "nervous systems" for model agents, neuromechanical modeling of animals, biomorphic robotics, and dynamical systems approaches to behavior and cognition.  More generally, he is interested in computational and theoretical biology, including models of metabolism, gene regulation and development.  He also has a longstanding interest in the design and implementation of dynamic programming languages and their environments.

Books
Biological neural networks in invertebrate neuroethology and robotics / edited by Randall D. Beer, Roy E. Ritzmann, Thomas McKenna. Boston : Academic Press, c1993. xi, 417 p. : ill. ; 24 cm.  (acid-free paper)
Beer, Randall D. Intelligence as adaptive behavior : an experiment in computational neuroethology / Randall D. Beer. Boston : Academic Press, c1990. xxiii, 213 p. : ill. ; 24 cm.  (alk. paper)

External links
Beer's page at Indiana University

American cognitive scientists
Living people
American roboticists
Indiana University faculty
Case Western Reserve University faculty
Year of birth missing (living people)