omniomni/omni-engineering huggingface dataset:
N-I (rocket). The N-I or N-1 was a derivative of the American Thor-Delta rocket, produced under license in Japan. The N stood for "Nippon" (Japan). It used a Long Tank Thor first stage, a Mitsubishi Heavy Industries-designed LE-3 engine on the second stage, and three Castor SRMs. Seven were launched between 1975 and 1982, before it was replaced by the N-II. Six of the seven launches were successful, however on the fifth flight, there was recontact between the satellite and the third stage, which caused the satellite to fail.

On 29 February 1976, the second N-I conducted the only orbital launch, as of 17 February 2024, to occur on a leap day.

Launch history

Payload Descriptions

Engineering Test Satellite I "KIKU-1" (ETS-1) 
ETS-1 was the first satellite launched by the NASDA. It had the objective of acquiring information on N-series launch vehicles, orbit injection, and tracking and control. It ceased operations on 28 April 1982.

Ionosphere Sounding Satellite "UME" (ISS) 
UME was Japan's first Ionosphere Sounding Satellite. It was used to monitor radio waves in the ionosphere and forecast conditions for shortwave communications. A power supply issue caused Ume to stop functioning one month after launch.

Engineering Test Satellite II "KIKU-2" (ETS-2) 
KIKU-2 was NASDA's first satellite launched to GEO. It was intended to gather data on geostationary satellite launch, tracking, control, orbit maintenance, and attitude control as well as carrying out experiments on communications equipment. KIKU-2 ceased operations on 10 December 1990, leaving GEO.

Ionosphere Sounding Satellite "UME-2" (ISS-b) 
UME-2 had similar goals to the original UME satellite, but was much more successful in carrying them out. While it was originally intended to gather data for only a year and a half, UME-2 ceased operations on 23 February 1983.

Experimental Communications Satellites "Ayame/Ayame-2" (ECS/ECS-b) 
Both ECS satellites were unsuccessful in completing their mission. During the first ECS launch, the third stage rocket collided with the satellite shortly after separation. During the ECS-2 launch, the satellite stopped transmitting shortly after separation. The satellites had the intention of conducting millimeter wave experiments. The JAXA website states that "we learned some valuable lessons on satellite separation technology and apogee engine from this experience".

About Engineering Test Satellite III "KIKU-4" (ETS-III) 
KIKU-4 was developed to acquire data on designing earth observation satellites with high power requirements. KIKU-4 completed testing of three-axis attitude control, deployable solar panels, movable heat control, and ion engine operation. On 8 April 1985, the satellite ran out of fuel and ceased operation.

See also
 Comparison of orbital launchers families
Delta rocket
H-I
H-II
H-IIA
N-II (rocket)
PGM-17 Thor

References

Mitsubishi Heavy Industries space launch vehicles
Thor (rocket family)
Vehicles introduced in 1975
Japan–United States relations
Samuel Madden (computer scientist). Samuel R. Madden (born August 4, 1976) is an American computer scientist specializing in database management systems. He is currently a professor of computer science at the Massachusetts Institute of Technology.

Career
Madden was born and raised in San Diego, California. After completing bachelor's and master's degrees at MIT, he earned a PhD specializing in database management at the University of California Berkeley under Michael Franklin and Joseph M. Hellerstein. Before joining MIT as a tenure-track professor, Madden held a post-doc position at Intel's Berkeley Research center.

Madden has been involved several database research projects, including TinyDB, TelegraphCQ, Aurora/Borealis, C-Store, and H-Store. In 2005, at the age of 29, he was named to the TR35 as one of the Top 35 Innovators Under 35 by MIT Technology Review magazine. Recent projects include DataHub - a "github for data" platform that provides hosted database storage, versioning, ingest, search, and visualization (commercialized as Instabase), CarTel - a distributed wireless platform that monitors traffic and on-board diagnostic conditions in order to generate road surface reports, and Relational Cloud - a project investigating research issues in building a database-as-a-service.  Madden has published more than 250 scholarly articles, with more than 59,000 citations, with an h-index of 101.

In addition, Madden is a co-founder of Cambridge Mobile Telematics and  Vertica Systems. Before enrolling at MIT and while an undergraduate student there, Madden wrote printer driver software for Palomar Software, a San Diego-area Macintosh software company.  He is also a Technology Expert at Omega Venture Partners.

Awards and recognitions

Madden won a National Science Foundation CAREER Award in 2004 and a Sloan Research Fellowship in 2007.

He received VLDB's best paper award in 2007 and VLDB's test of time award in 2015 for his 2005 paper on C-Store.

He also received a test of time award in SIGMOD 2013 for his 2003 paper The Design of an Acquisitional Query Processor for Sensor Networks.

In 2020 he was named a fellow of the Association for Computing Machinery.

He received the 2024 SIGMOD Edgar F. Codd Innovations Award for his contributions to multiple aspects of data management, including column-oriented database systems, high performance transaction processing, and systems for mobile and sensor data.

References

1976 births
Living people
American computer scientists
Massachusetts Institute of Technology alumni
Massachusetts Institute of Technology faculty
People from San Diego
University of California, Berkeley alumni
Database researchers
Sloan Research Fellows
2020 fellows of the Association for Computing Machinery
List of Douglas DC-7 operators. Operators of the Douglas DC-7 past and present:

Civil operators

SABENA - received 10 DC-7Cs as new build aircraft.

ARCO Bermuda

Panair do Brasil - received 4 DC-7Cs as new build aircraft.

Pacific Western Airlines

Conair
Flying Enterprise
Scandinavian Airlines System - received 14 DC-7Cs as new build aircraft.

AREA Ecuador

Transports Aériens Intercontinentaux - received 3 DC-7Cs as new build aircraft.
Transports Aériens Réunis

Affretair

Atlantis
Sudflug

Transportes Aéreos Nacionales (TAN Airlines)

 Penas Air Cargo

Persian Air Services

Aer Turas
Shannon Air

Alitalia - received 6 DC-7Cs as new build aircraft.

Air Caribbean Transport

Japan Air Lines - received 4 DC-7Cs as new build aircraft.

Royal Jordanian Airlines

Lebanese International Airways

Mexicana - received 3 DC-7Cs as new build aircraft.

KLM - received 15 DC-7Cs as new build aircraft.
Martinair
Schreiner Airways

Scandinavian Airlines System

Aerovías Panamá
Talingo Airlines

Aerolíneas Peruanas

Fleeming Air System Transport

Spantax
TAE – Trabajos Aéreos y Enlaces
TASSA
Transeuropa Compañía de Aviación

Affretair
Air Trans Africa

South African Airways - received 4 DC-7Bs as new build aircraft.

Internord
Ostermanair Charter
Scandinavian Airlines System
Swedish Red Cross
Transair Sweden

Swissair - received 5 DC-7Cs as new build aircraft.

British Overseas Airways Corporation - received 10 DC-7Cs as new build aircraft.
Caledonian Airways
Dan-Air
Trans Meridian

Aerovias Sud Americana (aka ASA International Airlines)
Air Tankers
Airlinft International
American Airlines - received 34 DC-7s and 24 DC-7Bs as new build aircraft.
Braniff Airways - received 7 DC-7Cs as new build aircraft.
Continental Air Lines - received 6 DC-7Bs as new build aircraft.
Delta Air Lines - received 10 DC-7s and 11 DC-7Bs as new build aircraft. 
Eastern Air Lines - received 50 DC-7Bs as new build aircraft.
Federal Aviation Administration
Interocean Airlines
Liberty Air
National Airlines - received 4 DC-7s and 4 DC-7Bs as new build aircraft.
Northwest Orient Airlines - received 14 DC-7Cs as new build aircraft.
Overseas National Airways
Pan American-Grace Airways - received 6 DC-7Bs as new build aircraft.
Pan American World Airways - received 7 DC-7Bs and 26 DC-7Cs as new build aircraft.
Riddle Airlines
Saturn Airways
Standard Airways
United Airlines - received 57 DC-7s as new build aircraft.
United States Forest Service
Universal Airlines
United States Overseas Airlines
Vance International Airways
Zantop Air Transport

Military operators

Colombian Air Force 1 x DC-7B and 1 x DC-7C

French Air Force 3 x DC-7C

Mexican Air Force 1 x DC-7B

 Nigerian Air Force - 1 × DC-7C briefly operated in 1968 during the Biafran War

Rhodesian Air Force 1 x DC-7C

References

 
  

DC-7
Oslo Analyzer. The Oslo Analyzer (1938 – 1954) was a mechanical analog differential analyzer, a type of computer, built in Norway from 1938 to 1942. It was the largest computer of its kind in the world when completed.

The differential analyzer was based on the same principles as the pioneer machine developed by Vannevar Bush at MIT.  It was designed and built by Svein Rosseland in cooperation with chief engineer Lie (1909-1983) of the Norwegian commercial instrument manufacturer Gundersen & Løken. The machine was installed at the first floor of the Institute for Theoretical Astrophysics at the University of Oslo. The building as well as the machine was financed in large parts by grants from The Rockefeller Foundation.

Rosseland visited MIT for several months in 1933, and studied Bush's work. Rosseland's design was a substantial development from Bush's machine, and much more compact. The machine had twelve integrators (compared to six of the original MIT machine) and could calculate differential equations of the twelfth order, or two simultaneous equations of the sixth order. When it was finished, the Oslo Analyzer was the most powerful of its kind in the world. 

Upon the German occupation of Norway on April 9, 1940, Rosseland realized that the machine might become a desirable research tool in the German war effort. So Rosseland personally removed all precision fabricated integration wheels and buried the wheels in sealed packages in the garden behind the institute.

The machine contributed to a number of scientific projects, both domestic and international. When it was dismantled, sections of it were put on display at the Norwegian Museum of Science and Technology.

References

External links
 Svein Rosseland and the Oslo Analyzer

Early computers
One-of-a-kind computers
Shen Tianhui. Shen Tianhui (; 27 April 1923 – 2 January 2011) was a Chinese chemist. She was a professor at Shanghai Jiao Tong University. She was an academician of the Chinese Academy of Sciences.

Biography
Shen was born in Jiashan, Zhejiang Province, and graduated from the department of chemical engineering of Utopia University in Shanghai in 1949. From 1957 to 1959, She studied in the Soviet Union and her research focus was semiconductor materials. In the 1960s, she held a position at the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences (CAS), studying the purification of silica material. From 1966 to 1986, she was in the No. 771 Institute, affiliated to the Ministry of Aerospace Industry in Lintong County, Shaanxi Province, doing research in semiconductor materials and large-scale integrated electronic circuits. Since 1987, she has been studying magnetic storage at the information storage research center at Shanghai Jiao Tong University.

Shen was a member of academic committee of SJTU, an advisor of Research Institute of Materials and Chemical Engineering of SJTU, and director of academic committee of Key Laboratory of Micro-Nano-Manufacturing Technology. Shen was elected an academician of Chinese Academy of Sciences in 1980.

References

External links
Biography of Shen Tianhui at chinavitae.com

1923 births
2011 deaths
Chemists from Zhejiang
Chinese women chemists
Educators from Jiaxing
Members of the Chinese Academy of Sciences
Academic staff of Shanghai Jiao Tong University
Scientists from Jiaxing
Utopia University alumni
Siemens-Halske Sh 22. The Siemens-Halske Sh 22 (also known as SAM 22) was a nine-cylinder aircraft radial engine manufactured by Siemens & Halske in Germany in the 1930s. Following the reorganization of its manufacturer and change in military nomenclature, the engine became known as the Bramo 322.

It was a result of a series of modifications to the original Bristol Jupiter IV design, which Siemens licensed in 1929. The first modifications were to "Germanize" the dimensions, producing the Sh.20 and Sh.21. The design was then bored out to produce the 950 hp (708 kW) Sh.22 in 1930. Like the Jupiter, the Sh.22 featured a rather "old" looking arrangement with rather prominent valve pushrods on the front of the engine. In the mid-1930s the Reich Air Ministry (RLM) rationalized engine naming, and Bramo was given the 300-block of numbers, the Sh.14 and Sh.22 becoming the Bramo 314 and 322 respectively. The 322 never matured and remained unreliable. It became a base for the more successful Bramo 323.

Applications
Dornier Do 19 (proposed)
Fieseler Fi 98
Heinkel He 46
Henschel Hs 122
Junkers W 34
Junkers Ju 86ab1 prototype

Specifications (Bramo 322H-2)

References

Aircraft air-cooled radial piston engines
Siemens-Halske aircraft engines
1930s aircraft piston engines
Beagle-class sloop. The Beagle class was a two-ship class of 8-gun screw steel sloops built for the Royal Navy in 1889.

Design
Beagle and Basilisk were constructed of copper-sheathed steel to a design by William White, the Royal Navy Director of Naval Construction.  They were powered by a twin-screw three-cylinder horizontal triple-expansion steam engine developing  and carried a barquentine sail rig. They were essentially the same design as the preceding Nymphe class, but built of steel rather than of composite wood-and-steel.

Operational use
In common with other designs of Royal Navy sloop of the period, the Beagle class were not intended or designed to fight a modern fleet action; they were intended to patrol Britain's extensive maritime empire, and this is how they were employed.  Beagle conducted three foreign commissions between 1890 and 1900, at least two of which were on the South Atlantic Station. She was refitted in 1900, during which her  breech-loading guns were replaced with quick-firing guns.  Basilisk also spent all or part of her career on the South Atlantic Station.

Ships

Citations

References

Sloop classes
 
 Beagle
Fan Xuji. Fan Xuji (; 5 January 1914 – 21 November 2015) was a Chinese engineer and academic who served as President of Shanghai Jiao Tong University.

Biography
Fan was born on 5 January 1914 in Beijing. His father was among the first students sent to Russia by the Qing Dynasty and studied railway engineering. Fan completed his elementary education in Beijing, and moved with his family to Harbin in 1925. In 1929, Fan enrolled in Harbin Institute of Technology, majoring in mechanical engineering. He obtained a bachelor's degree and also mastered Russian language. In the following years, he went to study at the California Institute of Technology in the United States and obtained two master's degrees in mechanical engineering and aeronautic engineering. Fan became the vice president of SJTU in 1979, and the president in 1980. He retired in 1984 and turned 100 in January 2014. He died in Shanghai on 21 November 2015.

References

1914 births
2015 deaths
Chinese men centenarians
Educators from Beijing
Presidents of Shanghai Jiao Tong University
California Institute of Technology alumni
Harbin Institute of Technology alumni
N-II (rocket). The N-II or N-2 was a derivative of the American Delta rocket, produced under licence in Japan. It replaced the N-I-rocket in Japanese use. It used a Thor-ELT first stage, a Delta-F second stage, nine Castor SRMs, and on most flights either a Star-37E or Burner-2 upper stage, identical to the US Delta 0100 series configurations. Eight were launched between 1981 and 1987, before it was replaced by the H-I, which featured Japanese-produced upper stages. All eight launches were successful.

Launch history

See also
Comparison of orbital launchers families
Delta rocket
H-I
H-II
H-IIA
N-I rocket
PGM-17 Thor

References

Mitsubishi Heavy Industries space launch vehicles
Thor (rocket family)
Vehicles introduced in 1981
Japan–United States relations
Global Design Effort. The Global Design Effort (GDE) was an international team tasked with designing the International Linear Collider (ILC), a particle accelerator to succeed machines such as the Large Hadron Collider (LHC) and the Stanford Linear Accelerator (SLAC), with the endorsement of the International Committee for Future Accelerators. Between 2005–2013, the GDE led planning, research and development, and produced an ILC Technical Design Report. 

The Global Design Effort was headed by Barry Barish of Caltech, former director of the LIGO laboratory.

References

External links 
ILC Global Design Effort (GDE) 
Particle physics facilities
Happy Line. The Happy Line was a monorail line in central Shenzhen. The line was a loop and has seven stations, including stops at Splendid China, Happy Valley, Window of the World, and China Folk Culture Village.

Technical information 

The monorail trains were built by Intamin with a fleet of five P28/24 class, three-car trains, each with a capacity of 24 passengers per train. The trains use 380 V 50 Hz AC power supply, and are equipped with four  AC motors and two  variable-frequency drives. Under normal circumstances, there are 5 trains running on the track at the same time.

The line features a maximum grade of 10%. The monorail beam was  wide and  tall, and has a support column every . Its maximal speed was 40 km per hour.

Operations 
The operating hours of Happy Route are 9:30am6:30pm on weekdays and 9am7pm on weekends. The actual traveling speed was about , and it takes about 25 minutes for the train to complete the circle. The fare was RMB 50.

Accident 
At 11am on 1 November 2018, a system failure occurred on the Happy Line, causing a collision between the third and fourth cars carrying more than 20 people. This accident caused one person a head injury, one person a waist injury and other passengers with minor injuries to varying degrees.

References

External links 
 The official map
 Video: Happy Line round trip view from inside monorail train

Monorail lines
Monorails in China
Transport in Shenzhen
People Porter people movers
Railway loop lines
Railway lines opened in 1998
Deep Creek Dam. The Deep Creek Dam located about 8 miles north of Oakland, Maryland, consists of an earth and rockwall dam across a tributary of the Youghiogheny River that was completed in 1925 by the Pennsylvania Electric Company. Construction of the dam created the Deep Creek Lake. The twin water turbine 20 MW hydroelectric plant, acquired by Brookfield Renewable Power, Inc., in 2005, became operational in 1928. The Federal Energy Regulatory Commission licensed the dam and hydroelectric plant in 1968, but released the licensing to Maryland effective 1994. Under a 1994 agreement with the Maryland Department of Natural Resources, the dam is operated to control waterflows to maintain the river temperature and dissolved oxygen levels to assist downstream fisheries with the intent of increasing the number of trout  as well as to enable recreational whitewater activities (kayaking, canoeing, and commercial rafting) on the Upper Youghiogheny River into which the dam releases. The Maryland Department of the Environment water appropriations permit under which the dam operates was last renewed on September 2, 2020.

See also

History of Deep Creek Lake, Maryland

References

External links
 Deep Creek Hydroelectric Station , Power Plant Research Program webpage

Energy infrastructure completed in 1928
Dams in Maryland
Hydroelectric power plants in Maryland
Buildings and structures in Garrett County, Maryland
United States power company dams
Dams completed in 1925
1928 establishments in Maryland
United States privately owned dams
Dazaifu Line. is a Japanese rail line operated by Nishi-Nippon Railroad (Nishitetsu) that connects Chikushino City and Dazaifu City in Fukuoka Prefecture.

History
The Dazaifu Horse Tramway Co. opened a 915mm gauge line from Futsukaichi to Dazaifu in 1902, and introduced steam locomotion on the line in 1913.

In 1927 the line was electrified at 1500 VDC and converted to 1435mm gauge, and was taken over by the Kyushu Railway Co. in 1934.

In 1942 the Kyushu Railway Co merged with the Kyushu Electric Railway Co., becoming the Nishi-Nippon (translates as West Japan) Railway Co.

Stations

References
This article incorporates material from the corresponding article in the Japanese Wikipedia

Rail transport in Fukuoka Prefecture
Dazaifu, Fukuoka
Min Enze. Min Enze (; 4 February 1924 – 7 March 2016) was a Chinese chemical engineer and chemist. He was an expert in petrochemical catalysis, and an academician of the Chinese Academy of Sciences (CAS) and the Chinese Academy of Engineering (CAE).

Biography
Min was born in Chengdu, Sichuan, China. He graduated from National Central University (Nanjing University) in 1946, majoring in chemical engineering.

In 1951, Min obtained his doctor's degree from Ohio State University in the United States. He worked for National Aluminate Corporation between 1951 and 1955. He returned to China in August 1955 after the Korean War ended and was assigned work at Beijing Institute of Oil Refining (now Institute of Petrochemical Science of China Petroleum and Chemical Corporation). Min was elected an academician of CAS in 1980, a member of Third World Academy of Sciences (TWAS) in 1993, and an academician of the Chinese Academy of Engineering in 1994. He served as the chairman of academic committee of the Institute of Petrochemical Science of China Petroleum and Chemical Corporation (Sinopec).

Min received the Highest Science and Technology Award in 2007, the most prestigious scientific prize awarded in China.

Min died on 7 March 2016 at the age of 92 in Beijing.

Asteroid 30991 Minenze is named in his honor.

Sources
Min Enze
Chemistry World

References

1924 births
2016 deaths
Chemists from Sichuan
Chinese chemical engineers
Engineers from Sichuan
Members of the Chinese Academy of Sciences
Members of the Chinese Academy of Engineering
National Central University alumni
Nanjing University alumni
Ohio State University College of Engineering alumni
People from Chengdu
TWAS fellows
Highest Science and Technology Award winners