omniomni/omni-engineering huggingface dataset:
Seibu SPI System. The Seibu SPI System is Seibu Kaihatsu's custom arcade system board. The Seibu SPI system board uses interchangeable game cartridges, however, each cartridge is region specific, and must be paired with a board of the same region. Seibu SPI boards "update" when a game cartridge is changed. This process takes about 10 minutes to complete, and only has to be performed once after a cart change.

There is also a single-board version of the SPI hardware.

Technical specifications
CPU: Intel 80386-DX 32-bit CISC CPU 25 MHz
 AMD AM386-DX/DXL 25 MHz CPU used on some models
Graphics processor: Custom Seibu graphics hardware
 240 x 320 pixels
 6144 colors max
Sound processor: Yamaha YMF271-F (OPX), Zilog Z80 CPU 8 MHz
Storage media: ROM, EPROM

List of Seibu SPI games

Senkyu (Battle Balls)
E-Jan High School
E-Jan Sakurasou
Raiden Fighters
Raiden Fighters 2
Raiden Fighters Jet 
Viper Phase 1

Arcade system boards
x86-based computers
Saxon V. The Saxon Class Vs were German, six-coupled, goods train, tender locomotives operated by the Royal Saxon State Railways.

They were the predecessors of the Saxon Class V V. Between 1859 and 1887 they were delivered in three batches of 24, 31 and 118 engines. They had an overhanging outer firebox and a steam dome. They had different types of valve gear; Allan, Gooch and Stephenson valve gear all being used at different stages. The first batch had Dampfschlitten brakes, the second steam-operated brake blocks and the third had Westinghouse compressed-air brakes.

The Deutsche Reichsbahn took over 11 machines, which were given the numbers 53 8201 to 53 8211, and all were withdrawn from services by 1927.

See also
Royal Saxon State Railways
List of Saxon locomotives and railbuses
Narrow gauge railways in Saxony

Notes

References

Further reading

 

 

0-6-0 locomotives
05
Railway locomotives introduced in 1859
Freight locomotives
OPEVAL. An Operational Evaluation (OPEVAL), the final phase of operational test and evaluation prior to fielding of a system or new equipment, is a process used by NATO military forces and designed to be no more than a 'customer acceptance' test. OPEVALs are run by the customer's agent, in the military's case one of the operational test agencies (OTAs) and uses a pre-designated operationally oriented test plan. The intent of the test is to verify that the product or proposed system meets all pre-defined operational requirements. 

OPEVALs are widely associated with STANAG requirements and documentation.

References

NATO Standardization Agreements
Class 98. Class 98 may refer to:
British Rail Class 98
DRG or DR Class 98, a German steam locomotive class which included ex-Länderbahn, branch line and other miscellaneous locomotives in the Deutsche Reichsbahn comprising the following sub-classes:
 Class 98.0: Saxon I TV
 Class 98.1: Oldenburg T 2
 Class 98.2: Oldenburg T 3
 Class 98.3: Bavarian PtL 2/2
 Class 98.4: Palatine T 4.II
 Class 98.4-5: Bavarian D XI, Bavarian PtL 3/4
 Class 98.6: Palatine T 4.I, Bavarian D VIII, Palatine D VIII
 Class 98.7: Bavarian BB II
 Class 98.8-9: Bavarian GtL 4/4
 Class 98.10: Neubaulokomotive
 Class 98.11: Rebuild from 98.8-9
 Class 98.12: BBÖ Class 162, ČSD Class 313.4
 Class 98.13: BBÖ Class 99, BBÖ Class 199, ČSD Class 320.0, JDŽ 153
 Class 98.14: BBÖ Class 399
 Class 98.15: LAG Nos. 50 to 76
 Class 98.16: Bavarian GtL 4/4 (LAG Nos. 80 and 81)
 Class 98.17: LAG Nos. 84 to 86
 Class 98.18: LAG Nos. 87 and 88
 Class 98.59: locomotive taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.60: various locomotives taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.61: various locomotives taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.62: various locomotives taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.63: various locomotives taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.64: various locomotives taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.70: Saxon VII TS, Saxon VII T
 Class 98.70: BBÖ Class 96, BBÖ Class 96, ČSD Class 310.0
 Class 98.70: various locomotives taken over in 1949 by the Deutsche Reichsbahn (GDR)
 Class 98.71: Saxon VII, LAG Nos. 42 and 43
 Class 98.72: Saxon IIIb T, LAG Nos. 27 and 28, 
 Class 98.73: Saxon II, LAG Nos. 17 to 49
 Class 98.74: Oldenburg T 1.2, LAG Nos. 17 to 49
 Class 98.75: Bavarian D VI
 Class 98.76: Bavarian D VII, LAG Nos. 9 and 10, LAG Nos. 50 to 76
 Class 98.77: Bavarian D X
 Class 98.77II: ČSD Class 300.6, ČSD Class 310.1, ČSD Class 310.8, ČSD Class 311.5
 Class 98.78: ČSD Class 400.1 
 Class 98.79: BBÖ Class 14
 Class 98.80: ČSD Class 200.0
Sejjil. Sejil, or Sejjil, () is a family of Iranian solid-fueled medium range ballistic missiles. The Sejil are replacements for the Shahab liquid-fueled ballistic missiles. According to US Pentagon sources, the missile profile of the Sejil closely matches those of the Ashura, Ghadr-110 and the Samen.

Design 
According to Jane's Information Group, details of the design other than the number of stages and that it uses solid fuel have not been released. Uzi Rubin, former director of Israel's Ballistic Missile Defense Organization, indicated that, "Unlike other Iranian missiles, the Sajil bears no resemblance to any North Korean, Russian, Chinese or Pakistani (missile technology). It demonstrates a significant leap in Iran's missile capabilities." Rubin went on to state that the Sejil-1 " ... places Iran in the realm of multiple-stage missiles, which means that they are on the way to having intercontinental ballistic missile (ICBM) capabilities ..."

The missile utilizes composite solid fuel and unlike the Shahab-3 medium-range ballistic missile (MRBM), which is launched only vertically, the Sejil could be launched at a variable angle. As a weapon, Sejil presents much more challenge to Iran's potential enemies, as solid-fuel missiles can be launched with much less notice than liquid-fueled missiles, making them more difficult to strike prior to launch.

Iran claims that if launched from the city of Natanz, it could reach Tel Aviv in less than seven minutes.

Variants 

 Sejil-1: The Sejil is a two-stage, solid-propellant, surface-to-surface missile (SSM) produced by Iran with a reported  range.   A successful test launch took place on 13 November 2008. Its range, if confirmed, would allow it to strike targets as far away as Israel and southeastern Europe. 
 Sejil-2:  According to CSIS Missile Threat, it is unclear if there is an independent Sejil-2 variant, or whether the name is simply a reference by Iran to testing in 2009 of the original Sejil. 
 Sejil-3: According to CSIS Missile Threat, unconfirmed reports about the development of a Sejil-3 state that it would reportedly have three stages, a maximum range of 4,000 km, and a launch weight of 38,000 kg.

See also 
 Military of Iran
 Iranian military industry
 List of military equipment manufactured in Iran
 Iran's missile forces
 Fateh-110
 Equipment of the Iranian Army
 Science and technology in Iran

External links 
CSIS Missile Threat - Sejjil

References 

Medium-range ballistic missiles of Iran
Intermediate-range ballistic missiles of Iran
Military equipment introduced in the 2010s
Nuclear Fuel Complex. The Nuclear Fuel Complex (NFC) was established in 1971 as a major industrial unit of India's Department of Atomic Energy, as a nuclear plant also specializing in supply of nuclear fuel bundles and reactor core components.  It is a unique facility where natural and enriched uranium fuel, zirconium alloy cladding and reactor core components are manufactured under one roof.

Natural uranium, mined at Jaduguda Uranium Mine in the Singhbhum area of Jharkhand state, is converted into nuclear fuel assemblies.  A 220 MW PHWR fuel bundle contains 15.2 kg of natural uranium dioxide (UO2).  Uranium dioxide pellets, which generate heat while undergoing fission, also generate fission products. The fission products, which are radioactive, should be contained and not allowed to mix with coolant water.  Hence the UO2 pellets are contained in zirconium alloy tubes with both ends hermetically sealed.

Nuclear Fuel Complex supplies zircaloy clad uranium oxide fuel assemblies and zirconium alloy structural components for all 14 operating atomic power reactors in India. The Hyderabad plant has a capacity to produce 250 tons of UO2 per year and is expected to expand to a 600 tons per year capacity.

NFC products are supplied to the Department of Atomic Energy, the Indian Navy, Hindustan Aeronautics Limited and other defence organisations, as well as chemical, fertiliser, and ball bearing industries.

NFC is planning to establish two major fuel fabrication facilities to meet the expected jump in nuclear power production.

References

Government agencies for energy (India)
Nuclear fuel companies
Nuclear technology in India
Manufacturing companies based in Hyderabad, India
Energy companies established in 1971
Non-renewable resource companies established in 1971
1971 establishments in Andhra Pradesh
Japanese seaplane carrier Mizuho. was a seaplane carrier of the Imperial Japanese Navy during World War II. The ship was built at Kawasaki Shipbuilding at Kobe, Japan, and was completed in February 1939.

Design and description
Mizuho was built to a similar design as the seaplane carrier , but with slightly less powerful diesel engines instead of Chitoses turbines.  She carried 24 seaplanes, and was equipped to carry twelve miniature submarines, although she could not carry full loads of both at one time.

Service history
Mizuho participated in invasion support for much of her career; her first mission was with the Fourth Surprise Attack Force. On 1 March 1942, planes from Mizuho and Chitose damaged the American destroyer , which was later sunk by aircraft from the aircraft carrier  and gunfire from the heavy cruisers  and .

Sinking

The American submarine  torpedoed Mizuho at 23:03 hours on 1 May 1942  off Omaezaki, Japan. She capsized and sank at 04:16 hours on 2 May 1942 with the loss of 101 lives. There were 472 survivors, of which 31 were wounded.

Footnotes

External links

Tech info on acepilots.com

Ships built by Kawasaki Heavy Industries
1938 ships
Seaplane tenders of the Imperial Japanese Navy
Ships sunk by American submarines
Maritime incidents in May 1942
World War II shipwrecks in the Pacific Ocean
Microdigital Eletronica. Microdigital Eletrônica Ltda. was a Brazilian computer company in the 1980s, based in São Paulo.

History 
Established in 1981 by the brothers George and Tomas Kovari (whose initials were the TK of the domestic computers line made by the company), its first product was the TK80, a clone of the British microcomputer Sinclair ZX80.

The company reached its height around 1985, with the launching of the TK90X (clone of the ZX Spectrum) and the TK 2000/II, a personal computer partially compatible (at Applesoft BASIC level) with the Apple II+. At this time, it had approximately 400 employees in three plants (two in São Paulo and one in the Zona Franca de Manaus) and more than 700 peddlers spread for all Brazil.

Although the logo of the company is identical to the earlier Microdigital Ltd of the United Kingdom the company is not related.

Line of products 
A not extensive list of Microdigital's products:

Home computers 
 TK80 (1981)
 TK82 (1981)
 TK82C (1981)
 TK83 (1982)
 TK85 (1983)
 TKS800 (1984 - vapourware)
 TK90X (1985)
 TK95 (1986)

Personal computers 
 TK 2000 (1984)
 TK 2000/II (1985)
 TK-3000 IIe (1986)
 TK-3000 IIe Compact (1987)
 TK EXTended (1987)
 LT 1600 D (?)
 TK Portable (?)

Peripherals 
 TK Printer (vapourware)

Video-games 
 Onyx (1984)- Colecovision clone, never launched
 Onyx Jr (1985)

Software 
Microdigital sold software (almost always pirate copies of foreign programs) through its subsidiary, Microsoft.

Others 
 Microdigital Rhythmic 2 Portable Keyboard

References

External links 
  Microdigital by Chema Matas in MicroHobby.com
  Micodigital's ads from the 1980s

Electronics companies of Brazil
Defunct computer companies of Brazil
Defunct manufacturing companies of Brazil
Manufacturing companies based in São Paulo
Environmental space. The concept of environmental space is the amount of any particular resource that can be consumed by a country without threatening the continued availability of that resource (sustainability), assuming that everyone in the world is entitled to an equal share.

The weakness of the concept is that it requires calculating the maximum sustainable consumption rate of each different resource globally. This rate could be set by either the maximum sustainable yield (say for forests or fisheries) or the assimilative capacity of the environment (e.g. for  or chlorine), but both quantities are very difficult to determine, so the 'environmental space' has rather large error limits and is therefore hard to defend in policy discussions. A further difficulty is that there is a different 'environmental space' for each kind of resource, and as they each necessarily have different units of measure, they cannot be added to get an overall environmental space for all the resources consumed by a country. The idea of environmental space was promoted quite strongly by Friends of the Earth Europe in the mid-1990s, but it is rarely used now, because of the aforementioned difficulties, and has essentially been superseded by 'ecological footprint'. The advantage of the ecological footprint is that every kind of resource use is converted to a land area basis, so that they can be added to produce an overall figure for a country, allowing comparisons to be made.

References 

Economics of sustainability
Joe T. May. Joe Turner May (born June 8, 1937) is an American businessman, electrical engineer, inventor, aviator, and politician.

Biography
Born on June 8, 1937, in Broadway, Virginia, May graduated from Virginia Tech in 1959. Between 1955–1958, he served in the United States Army.

In 1977, May founded EIT, a Sterling-based electronics manufacturer. May holds over twenty patents in the fields of electrical and electronic engineering. He is also an avid aviator, holding licenses in both fixed and rotary wing aircraft.

Between 1994 and 2014, he served in the Virginia House of Delegates, representing the 33rd district. The district included parts of Clarke, Frederick and Loudoun counties. May, a self described moderate, was a member of the Republican Party caucus. During his time in the House of Delegates, May was co-chair of the Science and Technology committee between 1998–2001, and chair between 2002–2007. From 2008–2014, he was chair of the committee on Transportation.

In June 2013, Dave LaRock defeated May in the 33rd district Republican primary.

In December 2013, May announced his candidacy in a special election to succeed Democratic Attorney General-elect Mark Herring, in the Virginia State Senate. After the Republican Party decided to choose its candidate through a "mass meeting" instead of a primary, May declared he would run as an independent. May was endorsed by both the conservative-leaning National Federation of Independent Business and the centralist Independent Greens Party. On election day, May garnered 10% of the vote, while the Democratic and Republican candidates received 53% and 38%, respectively.

May was the Republican candidate in the January 8, 2019, special election for the 33rd district to the Virginia Senate, losing to Democrat Jennifer Boysko, following Jennifer Wexton's election to the U.S. House of Representatives.

May and his wife, Roberta Compton Downs, reside in Leesburg, Virginia.

Electoral history

References

External links
 (campaign finance)

1937 births
Living people
Republican Party members of the Virginia House of Delegates
Virginia Tech alumni
American electrical engineers
20th-century American inventors
Helicopter pilots
People from Leesburg, Virginia
People from Broadway, Virginia
Engineers from Virginia
21st-century members of the Virginia General Assembly
Okan Ersoy. Okan Kadri Ersoy (born September 5, 1945) is a professor of electrical engineering and director of Statistical and Computational Intelligence Laboratory at Purdue University, West Lafayette School of Electrical and Computer Engineering. He is a Fellow of IEEE, a Fellow of OSA and a Fellow of ISIBM. Ersoy contributed to the research and education in computer science and engineering, artificial intelligence and bioinformatics. He is on the editorial boards of International Journal of Functional Informatics and Personalized Medicine and International Journal of Computational Biology and Drug Design. He is also on the advisory board of IJCBS.

Biography
Ersoy was born on September 5, 1945, in Istanbul, Turkey. He received B.S.E.E. degree from Boğaziçi University (Formerly Robert College) in Istanbul in 1967; M.S.E.E. degree in 1968, MS degree in Systems Science and PhD in Electrical Engineering in 1972 respectively, all from University of California at Los Angeles (UCLA) with specialization on lasers, quantum electronics, optics and image processing.

Research areas
His current research is concentrated in the fields of digital signal/image processing and imaging, neural networks, decision trees and support vector machines, optical communications, networking and information processing, diffractive optics with scanning electron microscope, Fourier-related transforms and time-frequency methods, probability and statistics. He has written many books on signal, image processing and fast transforms.

Books 
 Diffraction, Fourier Optics and Imaging

References

External links 
 Website at Purdue
 DOI.org
 https://docs.lib.purdue.edu/ecetr/69/
 http://sru.lib.purdue.edu/dir/sru?operation=searchRetrieve&recordSchema=dc&maximumRecords=50&sortKeys=DateCreated,0&recordXpath=&stylesheet=http%3A//www.lib.purdue.edu/research/sru/etd/etd.xsl&ScanClause=&version=1.1&recordPacking=xml&query=adviser+%3D+%22Ersoy%22+and+%22Okan%22
 Some of the selected IEEE publications of Professor O. K. Ersoy

1945 births
Living people
Boğaziçi University alumni
Academic staff of Boğaziçi University
UCLA Henry Samueli School of Engineering and Applied Science alumni
Purdue University faculty
American optical engineers
Systems engineers
American bioengineers
American electronics engineers
Turkish electronics engineers
Turkish electrical engineers
Turkish bioengineers
Turkish mathematicians
American academics of Turkish descent
Fellows of the IEEE
Fellows of Optica (society)
21st-century Turkish engineers
20th-century Turkish engineers
Dibromotetrafluoroethane. 1,2-Dibromotetrafluoroethane (C2Br2F4) is a haloalkane. It is also known under codenames R-114B2 and Halon 2402. It is a colorless liquid with a boiling point of 47.2 °C. R-114B2 is occasionally used in fire suppression systems.  It is highly volatile, passes through soil to air, and can be detected in the parts-per-quadrillion range.

Since July 1, 1994, the Montreal Protocol required all nations or parties that are a party to it to eliminate the production, consumption, and trade of ozone-depleting substances (ODS). Dibromotetrafluoroethane's high ozone-depleting potential (ODP) caused it to be identified as an ODS. Dibromotetrafluoroethane has been prohibited in Canada since July 1, 1994, "except for essential uses or for use as analytical standards".

On November 8, 2008, an accident aboard Russian submarine K-152 Nerpa involving the unintentional activation of a fire suppressant system loaded with R-114B2 resulted in the death of 20 people.

Notes

Fire suppression agents
Organobromides
Organofluorides
Ozone-depleting chemical substances
Advanced materials industry in China. As an important part of the national sustainable development strategy, the development of advanced materials is advancing the competitive nature and state of the art for Chinese industry. The State has put advanced materials high on its development agenda for the next decade and listed it among the key high-tech industry sectors that would be given priority for development by the State Council. At present, the pace of building China's advanced materials industry is accelerating. Advanced materials have been key fields in China's national R&D system (National High Technology Research and Development Program (863 Program) and National Basic Research Program (973 Program)).

R&D leaders
Shanghai Institute of Ceramics, Chinese Academy of Sciences
State Key Laboratory of High Performance Ceramics and Superfine Microstructures
National Engineering Research Center for Biomaterials
National Industrial Ceramics Engineering Technology Center
The State Key Lab of New Ceramics and Fine Processing

Domestic leaders
Dongxin Seals Co., Ltd
Zibo HuaChuang Fine Ceramics Co., Ltd
Shenzhen Upcera Co., Ltd
Yixing Nonmetallic Chemical Machinery Factory
Sinoma Advanced Materials Co., Ltd.
Beijing Tsinghua Unisplendor Founder High-Tech Ceramics Co. Ltd
Beijing Trend Aofu Fine Ceramics Co., Ltd.
Elite Ceramic (Beijing) Co., Ltd
Shenyang Starlight Advanced Ceramics Co., Ltd
Fenghua Feigu Kaiheng Seal Technologies Co., Ltd.
Luoyang Bearing Science and Technology Co., Ltd.
Yixing Haldenwanger Fine Ceramic Co., Ltd.
Shandong Far East High-technological Material Co., Ltd.
Zibo GT Industrial Ceramics Co., Ltd.
Wuxi Murata Electronics Co., Ltd.
Guangdong Jin Gang New Materials Co., Ltd.
Dalian Dayou Advanced Ceramic Co., Ltd.
Fenghua Advanced Technology (Holding) Co., Ltd
Zhejiang Jiakang Electronics Co., Ltd
Jiangsu Jiangjia Electronics Co., Ltd.
Jiangsu Baotong Electronic & Technology Co., Ltd
Chengdu Hongming Electronics Co., Ltd.
Zhejiang Zhengyuan Electric Co., Ltd.
Chaozhou Three-Circle
Leatec Fine Ceramics (Kunshan) Co., Ltd.
Shanghai Bio-lu Biomaterials Co., Ltd
National Engineering Research Center for Biomaterials
Hunan Gongchuang Bio-functional Materials Co., Ltd.
Wuhan Huawei Bio Materials Engineering Development Co., Ltd.

International leaders
Saint-Gobain Zirpro (Handan) Co., Ltd
Shanghai Nicera Sensor Co., Ltd
Shanghai KYOCERA Electronics Co., Ltd.
Weifang Huamei Fine Ceramics Co., Ltd
Germany FCT (Tangshan) Technical Ceramics Co., Ltd
Corning Shanghai Co., Ltd

See also
Advanced Materials journal
Materials science

Industry in China
Metallurgy Analysis. Metallurgical analysis (冶金分析, in Chinese) is a monthly science magazine based in Beijing, China. The magazine was founded in 1981. It is owned by Central Research Institute of Iron and Steel of China (中国钢铁研究总院). The publisher is the metallurgical analysis editorial department. The magazine mostly features articles on the chemical analysis.

Topics covered
Detecting and monitoring techniques for production process control
Sampling and sample preparation
On-line analysis and control
Surface and coating analysis
Health and environmental analysis
Quality control and laboratory management
Advanced reviews on different fields of material analysis & testing techniques
Standardization, certification, accreditation and verification.

In determining the suitability of submitted articles for publication, particular scrutiny will be placed on the degree of novelty and significance of the research and the extent to which it adds to existing knowledge in material analysis.

References

External links
 
 

1981 establishments in China
Chinese-language magazines
Magazines established in 1981
Magazines published in Beijing
Science and technology magazines
Monthly magazines published in China