omniomni/omni-engineering huggingface dataset:
H&E Paramotores Corsario. The H&E Paramotores Corsario () is a Spanish paramotor that was designed and produced by H&E Paramotores of Madrid for powered paragliding. Now out of production, when it was available the aircraft was supplied complete and ready-to-fly.

Design and development
The Corsario was designed to comply with the US FAR 103 Ultralight Vehicles rules as well as European regulations. It features a paraglider-style wing, single-place accommodation and a single Cors'Air engine in pusher configuration with a reduction drive and a  diameter two-bladed wooden propeller, depending on the model. The fuel tank capacity is .

As is the case with all paramotors, take-off and landing is accomplished by foot. Inflight steering is accomplished via handles that actuate the canopy brakes, creating roll and yaw.

Variants
Corsario 99
Model with a Cors'Air engine in pusher configuration with a 1.8:1 ratio reduction drive and a  diameter two-bladed wooden propeller. The empty weight is .
Corsario 120
Model with a Cors'Air engine in pusher configuration with a 2.6:1 ratio reduction drive and a  diameter two-bladed wooden propeller. The empty weight is .

Specifications (Corsario 120)

References

Corsario
2000s Spanish ultralight aircraft
Single-engined pusher aircraft
Paramotors
Type 027 torpedo boat. The Type 027 torpedo boat is a family of Chinese torpedo boats developed to replace Type 025 torpedo boat, and these boats have since retired from active service in the People's Liberation Army Navy (PLAN).

In 1966, PLAN decided to indigenously develop a new generation of large torpedo boat that is armed with four torpedo tubes. The large boat would have better sea keep capability than its smaller predecessors and because it is more heavily armed, less will be needed to achieve the same result in comparison when its smaller predecessors were deployed. The 701st Research Institute  of the China Shipbuilding Industry Corporation (CSIC, known as Warship Research Academy at the time) was assigned as the designer, and Wuzhou 449th Factory, the predecessor of China Guijiang Shipbuilding Co., Ltd. (中船桂江造船有限公司) was assigned to build the first unit. Construction begun in 1971 and the boat was launched in 1974, and turned over to PLAN in 1976, and is designated as Type 027.

Two year after the delivery of the first boat, the 701st Institute modified design and this time, Wuhu Shipyard (芜湖造船厂), the predecessor of Wuhu Xinlian Shipbuilding Co., Ltd. (芜湖新联造船有限公司) was assigned to build this improved version designated as Type 027II. The new boat differs from the first boat in the material used: Type 027II uses the new Type 903 steel that reduces the overall weight by a ton. Construction begun on June 19, 1979, and in September 1980, launching and subsequent sea trials were completed, proving the success of new design. Before the installation of subsystem, the design went yet another major upgrade, mostly in onboard electronics such fire control system, IFF and electrical control system of the propulsion.  As a result, the installation of subsystem did not occur until June 1983, three years after the completion of the construction and sea trials of the hull. With most of its originally planned onboard subsystems of Type 027 replaced by newly developed systems, Type 027II is subsequently renamed as Type 027IIB.

Installation of new subsystems took three months, and the first Type 027IIB was launched on September 20, 1983, and from November 3 thru November 21 of that same year, the boat completed its trials in Yangtze River. On December 13, 1986, the boat reached Ningbo to conduct sea trials, which was completed after ten trials. On January 10, 1984, the first Type 027II was handed to PLAN. In October 1985, construction of the 2nd Type 027II begun. However, due to the advent of missile boats, the planned construction program of Type 027 series torpedo boats were cancelled. As a result, only three Type 027 series torpedo boats entered service with PLAN, one Type 027 and two Type 027B, all of which have been retired from active service by early 2010s.

References

Torpedo boat classes
Torpedo boats of the People's Republic of China
Type 058 minesweeper. The Type 058 minesweeper is a Chinese riverine minesweeper developed for the People's Liberation Army Navy (PLAN), and by the early 2010s, it has already been retired from active service from PLAN.

In 1967, PLAN begun development of a class of riverine minesweeper to counter magnetic mines, and it was decided to adopt a low-magnetic hull for the minesweeper, utilizing the manganese-aluminum based low magnetic steel.  The first unit was completed by Jiangnan Shipyard in 1971, and subsequently, three more were completed. However, due to the Chinese industrial and technical capability at the time, processing the manganese-aluminum based low magnetic steel to the requirement was extremely difficult and costly, and after completing four minesweepers, no more units were ordered despite the relatively successful service in PLAN. It was decided to develop a fiberglass-hulled minesweeper, Type 7102 minesweeper as a successor of Type 058.

References

Minesweepers of the People's Liberation Army Navy
Type 7102 minesweeper. Type 7102 is a Chinese minesweeper developed for the People's Liberation Army Navy (PLAN), and by the early 2010s, it has already been retired from active service from PLAN.

Type 7102 is designed to supplement or replace earlier Type 058, which despite its successful development, failed to enter service in large numbers. The reason Type 058 did not enter large production is due to its construction material, which was the manganese-aluminium based low-magnetic steel, was extremely difficult to process because the limitation of Chinese industrial and technical capability at the time.   As a result, an alternative was sought and it was decided to develop a fiberglass-hulled minesweeper, which was designated as Type 7102.

Construction begun in May 1972 at Wuhu Shipyard (芜湖造船厂), the predecessor of the Wuhu Xinlian Shipbuilding Co., Ltd. (芜湖新联造船有限公司), and after two and half a year, the boat was launched in December 1974. From April through September 1975, both riverine and sea trials were completed at the Yangtze River.   The minesweeper was formally handed over to PLAN in November 1975, but only a single unit was built, and has since retired from active service in the Chinese navy.

References

Minesweepers of the People's Liberation Army Navy
33 kV Substation, Perunad. 33 kV substation, Perunad is a transmission part of Kerala State Electricity Board, a public sector agency of under the Government of Kerala, India, that transmits the electricity supply in the state. Established in 2012, the agency comes under the authority of the Department of Power.

Perunad Substation inaugurated by Minister Aryadan Muhammed.

General
There is only 1 no. 5 MVA, 33 kV Power transformer installed in the bay. The station auxiliary supply is taken from a 250 kVA, 11 kV transformer which is tapped from the 11 kV bus, in the station.

In addition to RPG 1 and RPG 2.2 No: 11 kV feeders in the 11 kV bus. One is an 11 kV town feeder from this station for feeding the nearby Vadasserikkara, Perunad area. Hence 11 kV town and 11 kV Perunad breaker can be put in alternate use. Similarly two 11 kV AB switches are installed in the substation compound for the selection of 11 kV TOWN/PERUNAD supply. The maintenance of the ABs and its DPs are carried out by Electrical section Vadasserikkara.

The custodian of feeders such as RPG-1, RPG-2, 33 kV PTPE etc. are Electrical section Vadasserikkara.

The 11 kV Town/Perunad feeder can be extended to 11 kV Vadasserikkara feeder from the Ranni 110 kV substation. Usually this is done by the field staff of Electrical section, Vadasserikkara by closing the 11 kV Delta AB. During the failure of the 33 kV PTPE feeder, the SHEP R-PND is connected to the grid through 11k V Vadasserikkara feeder, the load in the Vadasserikkara feeder is regulated by Electrical section Vadasserikkara for easy synchronisation.

Introduction
The substation is fed from 110 kV substation Pathanamthitta through one 33 kV feeder (33 kV PTPE feeder). The two 11 kV feeders RPG 1.RPG-2 are fed from the small 2x2 MW hydroelectric project at Ranni Perunad works under the tail race of 12 MW, Maniyar Hydro Electric Project by Carborundum Universal Ltd. The RPG-1 and RPG-2 are mainly used for the power evacuation from R-PND SHEP while on generation and also used for taking auxiliary supply from R-PND 33 kV substation.

Feeder

References

Electric power transmission infrastructure in India
Type 0109 gunboat. Type 0109 gunboat was a type of gunboat developed by China for the People's Liberation Army Navy (PLAN) in the late 1950s, and has since retired.

In 1958, PLAN commander-in-chief of East Sea Fleet Vice admiral Tao Yong (陶勇) ordered Colonel Ma Qian (马千), the director of PLAN Shipbuilding and Repair Department (SRD) of the PLAN Headquarter (海军司令部修造部), to develop a new gunboat designated as Type 0109. The task was given to PLAN No 101 Factory (later renamed as 4805 Factory, the predecessor of current Shenjia Shipyard (申佳船厂). Designers included a group of young engineers and technicians, including Mr. Wang Zhao-Ji (王肇基), Mr. Lin Ke-Guang (林克光), Mr. Chen Yin-Geng (陈荫耕), Mr. Yang Zheng-Xin (杨正信), Mr. Zhuang Xu (庄煦), Mr. Zhang Liu-Gen (张留根), Mr. Gu Yong-Xin (顾永鑫), with Mr. Wang Zhao-Ji as the general designer. Drafters included Mr. Su Xiao-Ming (苏晓明) and Zhang Fu-Gen (张福根). Production went smoothly, a rather rare occasion in the political turmoil in China at the time, namely, the Great Leap Forward. By March 1959, the first boat was launched, with PLAN Vice Admiral Rao Shou-Shen (饶守坤) attending the launching ceremony. Sea trials confirmed the design had met all requirements, and by 1962, all 10 planned boats were completed. Type 0109 was one of the sources based on which Type 062 gunboat was developed from. Some of the Type 0109 were upgraded with a pair of 57 mm gun replacing the original twin 37 mm gun in the bow. Type 0109 has participated in numerous engagements with ROCN in the 1950s and 1960s.

References

Gunboat classes
Gunboats of the People's Liberation Army Navy
Nataša Pavlović. Nataša Pavlović is a Serbian mathematician who works as a professor of mathematics at the University of Texas at Austin.
Her research concerns fluid dynamics and nonlinear dispersive partial differential equations.
She is known for her work with Nets Katz pioneering an approach to constructing singularities in equations resembling the Navier–Stokes equations, by transferring a finite amount of energy through an infinitely decreasing sequence of time and length scales.

Pavlović earned a bachelor's degree in mathematics from the University of Belgrade in 1996, and completed her doctorate from the University of Illinois at Chicago in 2002 under the joint supervision of Susan Friedlander and Nets Katz. After temporary positions at the Clay Mathematics Institute, Princeton University, Institute for Advanced Study, and Mathematical Sciences Research Institute, she joined the Princeton faculty in 2005, and moved to the University of Texas in 2007.

She was a Sloan Research Fellow from 2008 to 2012.
In 2015 she was elected as a fellow of the American Mathematical Society. From 2013-2015, Pavlović served as a Council Member at Large for the American Mathematical Society.

References

External links
Home page

Year of birth missing (living people)
Living people
Serbian mathematicians
21st-century American mathematicians
University of Belgrade alumni
University of Illinois Chicago alumni
Princeton University faculty
University of Texas at Austin faculty
Sloan Research Fellows
Fellows of the American Mathematical Society
21st-century American women mathematicians
John J. McKetta. John J. McKetta Jr. (October 17, 1915 – January 15, 2019) was an American chemical engineer known for his research on more efficient ways to create energy and the thermodynamic properties of hydrocarbons.

Life 
Born in Wyano, Pennsylvania, he obtained his BSE from Tri-State College (now Trine University) in Angola, Indiana, and, MS and PhD degrees from the University of Michigan. He joined the faculty of the chemical engineering department of the University of Texas in 1946, later serving as department chair, dean of the UT College of Engineering, and vice chancellor of the UT System. He served as energy advisor to Presidents Richard Nixon, Gerald Ford, Ronald Reagan, and George H. W. Bush.

He published over 400 papers and wrote or edited 87 books, including the 68-volume "Encyclopedia of Chemical Processing and Design". He was elected to the National Academy of Engineering and, in 2009, was selected by the American Institute of Chemical Engineers as one of the "50 Chemical Engineers of the Foundation Age." He also served as president of AIChE in 1962.

In 1997, Trine University named its department of chemical engineering in his honor and in 2016 Trine named him "Patron Saint of the Faculty" in honor of his dedication to his alma mater.

In 2012, the University of Texas renamed his department as the John J. McKetta Jr. Department of Chemical Engineering. As a published author, he is widely held in libraries worldwide. He died in January 2019, aged 103.

References

1915 births
2019 deaths
People from Westmoreland County, Pennsylvania
American chemical engineers
American science writers
American men centenarians
University of Texas alumni
University of Michigan College of Engineering alumni
Trine University alumni
H&E Paramotores Simonini. The H&E Paramotores Simonini is a Spanish paramotor that was designed and produced by H&E Paramotores of Madrid for powered paragliding. Now out of production, when it was available the aircraft was supplied complete and ready-to-fly.

Design and development
The Simonini was designed to comply with the US FAR 103 Ultralight Vehicles rules as well as European regulations. It features a paraglider-style wing, single-place accommodation and a single Simonini Racing engine in pusher configuration with a reduction drive and a  diameter two-bladed wooden propeller, depending on the model. The fuel tank capacity is .

As is the case with all paramotors, take-off and landing is accomplished by foot. Inflight steering is accomplished via handles that actuate the canopy brakes, creating roll and yaw.

Variants
Simonini 99
Model with a Simonini Racing engine in pusher configuration with a 2.3:1 ratio reduction drive and a  diameter two-bladed wooden propeller. The empty weight is .
Simonini 120
Model with a Simonini Racing engine in pusher configuration with a 2.5:1 ratio reduction drive and a  diameter two-bladed wooden propeller. The empty weight is .

Specifications (Simonini 120)

References

Simonini
2000s Spanish ultralight aircraft
Single-engined pusher aircraft
Paramotors
Trocano. Trocano (tɾoˈkɐnu) is a Brazilian thermobaric weapon similar in design to the United States' MOAB weapon or Russia's FOAB. Like the US weapon, the Trocano is designed to be pallet-loaded into a C-130 Hercules - "Hércules" (ˈɛʁkuleʃ) - aircraft, and deployed using a parachute to drag it from the C-130's cargo bay and separate from its pallet, at which point the bomb's own aerodynamics determine its drop trajectory.

The project began in 2004. It was under request of EMAER (Estado Maior da Aeronáutica - Military Staff of Aeronautics) and DIRMAB (Diretoria de Material Aeronáutico e Bélico - Board of Aeronautical and Military Equipment) that the IAE (Instituto de Aeronáutica e Espaço - Institute of Aeronautics and Space) started the Trocano project.

Due to its destructive power it is described as a defense system to be used in the interdiction of large areas and to possibly clear the tree-dense terrain for landing of rotary-wing aircraft.

The Trocano contains 9,000 kg of tritonal, producing a total destruction blast radius of . Despite this, Trocano places third on blast yield behind both the US (containing 8,150 kg of H6 explosive, more powerful than tritonal) and the Russian weapon (with 11,000 kg of explosive). Thus receiving the nickname "Mother of all Brazilian bombs" or "Brazilian MOAB".

The Brazilian Air Force confirmed the development of the bomb in 2011. In the Activities Report document, it is confirmed that Trocano received the "Certificação de Produto Aeronáutico Aprovado" (Certification of Approved Aeronautic Product), which meant that "all the requirements have been fulfilled". It also received the "Certificado de Integração à Aeronave C-130" (Certification of Integration to Airship C-130), signifying its possible usage in the Air Force Hercules airships - that carry the same name as the Greek legendary hero Hercules.

The project was conducted under the Brazilian norms NBR 15100 (regulating airspace system quality), making IAE the first public institution in Brazil to receive the certification NBR 15100:2004. The serial production was said to be defrayed by EMAER and passed on to the national industry. The certifications attained by the project served as an important achievement by the IAE to attest their quality management.

References

 

Aerial bombs of Brazil
Thermobaric weapons
Military equipment introduced in the 2010s
Alfred Pugsley. Sir Alfred Grenville Pugsley, FRS (13 May 1903 – 9 March 1998) was a British structural engineer.

He was born in Wimbledon and studied engineering at Battersea Polytechnic, followed by working as a civil engineering student at Woolwich Arsenal.

In 1926 he moved to work in R&D at the Royal Airship Works at Cardington, Bedfordshire, where he was involved in the development of the R101 airship. In 1931 he transferred to the Royal Aircraft Establishment (RAE) at Farnborough, where he was concerned with the behaviour of aircraft wings. In 1941 he was made head of the structural and mechanical engineering department at RAE and awarded an OBE in 1944.

After the Second World War he was appointed Professor of Civil Engineering at the University of Bristol  becoming Emeritus Professor in 1968. During this time he developed the concepts of safety in engineering, becoming an authority on metal fatigue in aircraft and the safe design of suspension bridges.

He was elected a Fellow of the Royal Society in 1952. and knighted in 1956. In 1957 he was elected President of the Institution of Structural Engineers and in 1968 awarded their Gold Medal "in recognition of his services to the Institution and for originating a general philosophy of structural safety based on a statistical analysis of the probability of failure".

In 1968 his report on the Ronan Point disaster, when a system built tower block in London partly collapsed, caused the building industry to review its techniques and procedures. In 1979 he was presented with the James Alfred Ewing Medal by the Institution of Civil Engineers.

He wrote a number of books based on his work, including:

Concepts of Safety in Structural Engineering (1951)
The Theory of Suspension Bridges (1957)
The Safety of Structures (1966)
The Works of Isambard Kingdom Brunel (1980)
The non-linear behaviour of a suspended cable (1983)

References

1903 births
1998 deaths
People from Wimbledon, London
British structural engineers
Presidents of the Institution of Structural Engineers
Fellows of the Royal Society
Knights Bachelor
IStructE Gold Medal winners
Alumni of the University of Surrey
Engineers from London
EV-E801 series. The  is a two-car battery electric multiple unit (BEMU) train type operated by East Japan Railway Company (JR East) on the Oga Line in Akita Prefecture in northern Japan since 4 March 2017.

Overview
The train is derived from the experimental 817 series BEMU train developed by JR Kyushu, and will incorporate modifications to cope with the colder climate of Akita Prefecture.

The two-car EV-E801 series train operates as an electric multiple unit (EMU) under the 20 kV AC overhead wire of the Ou Main Line between  and , a distance of , and on battery power over the non-electrified Oga Line tracks between Oiwake and , a distance of , replacing existing KiHa 40 diesel multiple unit (DMU) trains. It can also be recharged via its pantograph at a 20 kV AC recharging facility specially built at Oga Station.

The EV-E800 car is equipped with lithium-ion storage batteries with a total capacity of 360 kWh (at 1,598 V), and operates at a maximum speed of  under overhead wires and at  on battery power over non-electrified tracks.

Formation
The two-car train is formed as shown below, with one driving motor ("Mc") and one driving trailer ("Tc") car.

The Mc car is fitted with one single-arm pantograph.

Interior
Internally, the train uses LED lighting throughout. Seating accommodation consists of longitudinal bench seating. Both cars have a toilet.

History
Initial details of the new train were formally announced by JR East on 20 November 2015. The train underwent evaluation and proving trials on the Oga Line prior to scheduled services in March 2017. The two-car trainset was delivered from the Hitachi factory in Kudamatsu, Yamaguchi to Akita Depot in December 2016.

On November 2, 2020, two new sets G2 and G3 were delivered from Hitachi and arrived at Akita depot on November 4. The sets were coupled to each other and transported by a freight locomotive. Additionally on November 16, 2020, three more sets G4, G5, and G6 were delivered and arrived at Akita depot two days later.

In December 2023, a winter snowstorm stranded sets G5/G6 in the middle of Oga Line at a passing loop station, requiring a DE10 diesel locomotive to rescue both sets at the same time.

See also
 Smart BEST, a self-charging BEMU train developed by Kinki Sharyo in 2012
 EV-E301 series, a DC BEMU introduced by JR East on the Karasuyama Line in 2014
 BEC819 series, an AC BEMU introduced by JR Kyushu in 2016

References

External links

 JR East news release published 20 November 2015 

Electric multiple units of Japan
East Japan Railway Company
Train-related introductions in 2017
Hitachi multiple units
20 kV AC multiple units
Battery electric multiple units
Breezy Path. Breezy Path () is a short and steep one-way road in the Mid-Levels, Hong Kong Island. It begins at the intersection point between Lyttleton Road and Park Road and ends at an intersection at Bonham Road.

Traffic can only travel downwards from Park Road to Bonham Road. There are no shops along the road; there are only residential buildings (Ying Piu Mansion) and the Hong Kong Institute of Technology. It provides a faster way to go from Lyttleton Road to Bonham Road and Caine Road, and some minibus routes use it as a shortcut, e.g. the number 56 route, which goes from Robinson Road to North Point.

The Hong Kong Institute of Technology building on Breezy Path is being demolished to make way for Ying Wa Girls' School's expansion.

References

Mid-Levels
Roads on Hong Kong Island