omniomni/omni-engineering huggingface dataset:
Dredger 1. The first exclusively owned dredger ship of its type in the Indian Navy; the indigenously built ship is meant for dredging the various navy ports. The ship was designed to meet precise deepening requirements around the dockyard and port installations and in riverine or other places where deepening is needed. The ship which can hold up to 300 cubic metres or 500 tons of dredged material, has a set of 8 openable hopper bottom doors for disposal of dredged material out at sea. The main equipment of the ship is a 320-HP Cummins-855-powered forward-mounted crane supplied by Titagarth Wagons. The crane’s 15.2-meter boom has a working radius of 12 meters and hoisting capacity of 10.5 metric tons at a 46-degree boom angle. The crane’s grab bucket has 3-cubic-meter capacity and holds up to 4.5 metric tons of dredged material; and is capable of dredging up to depths of 10 meters.

Built by Tebma Shipyard Limited, the ship based out of Mumbai has a 90% locally sourced content, much more than the usual 50% thanks to the Make in India initiative started by PM Narendra Modi. The dredger built at Tebma's Malpe facility in Karnataka is a self-propelled grab-hopper dredger that can discharge dredged material through eight hopper doors controlled by hydraulic rams and chains over pulley out at sea. Grab-hopper dredgers generally produce minimal turbidity and less disturbance to marine ecosystem.

Indian Navy which used to outsource its dredging operations had floated a tender for its 1st exclusively owned dredger in 2012, and Tebma shipyard had won the bid in 2013. This dredger is the 22nd vessel built by the company for the Indian Navy, having previously supplied tugs and special purposes barges.

See also
List of active Indian Navy ships

References

2010 ships
Naval ships of India
Dredgers
Ural Electrochemical Combine. The Ural Electrochemical Combine () is a company located in Novouralsk, Russia. It is a subsidiary of TVEL (Rosatom group). Beginning in 1949, the plant began the production of Highly Enriched Uranium (HEU).

History 
The Ural Electrochemical Combine was important to the Soviet Union due to its history of foreign partnerships. The facility was heavily involved in the construction of centrifuge plants in Shaan-xi and Lanzhou, China in the 1990s to serve China's domestic fuel needs. The facility also enriched uranium for Kazakhstan, with the Soviet Union receiving a share of 50%, proportionate to the need to enrich to 6000 tU/yr.

The Soviet Union began replacing its gaseous diffusion equipment with centrifuge technology in the 1960s. By the end of the Cold War, when all equipment had been replaced, the facility had the capacity to produce almost 12 million SWU per year.

The facility is now converted to civilian use and no longer produces highly enriched uranium. Today, the facility enriches uranium for Low-Enriched Uranium (LEU) fuel, and develops technologies for industrial applications. In the early 2000s it accounted for 49% of Russia's enrichment capacity.

References

External links
 Official website

Companies based in Sverdlovsk Oblast
Rosatom
Nuclear reprocessing sites
Manufacturing companies of the Soviet Union
Nuclear technology in the Soviet Union
Chassis management controller. A chassis management controller (CMC) is an embedded system management hardware and software solution to manage multiple servers, networking, and storage.

A CMC can provide a secure browser-based interface that enables an IT system administrator to take inventory, perform configuration and monitoring tasks, remotely power on/off blade servers, and enable alerts for events on servers or components in the blade chassis. It has its own microprocessor and memory and is powered by the modular chassis it is plugged into. The inventory of hardware components is built-in and a CMC has a dedicated internal network. The blade enclosure, which can hold multiple blade servers, provides power, cooling, various interconnects, and additional systems management capabilities. Unlike a tower or rack server, a blade server cannot run by itself; it requires a compatible blade enclosure.

References

Embedded systems
Moshe Shachak. Moshe Shachak (Hebrew: משה שחק; born Moshe Charshak; 1936) is an ecologist at the Ben Gurion University. Shachak’s research focuses on ecosystem engineers, organisms that modulate the abiotic environment. Most of his studies were conducted in arid and semi arid ecosystems.

Major contributions
Shachak was born in Tel Aviv, Israel. In his early career, he studied desert animals and eco-hydrological processes in small desert watershed. Together with colleges he showed that herbivory of snails on cyanobacteria  living inside rocks  has major impacts of weathering  of that rocky desert. This effect was found to be similar in magnitude to aeolian deposition in that area. A follow-up study showed that this herbivory has a fertilization effect which is about 11% of the nitrogen input in that system. These findings, led to the development of the concept of ecosystem engineers together with Clive Jones and John Lawton. Ecosystem engineers are organisms that change the environment thereby affecting the distribution of many other organisms. Although controversial at the beginning, this concept had become widely accepted. One of the original papers was named in the list of the 100 most influential papers in ecology and today the concept appears in mainstream ecological textbooks. Shachak’s more recent research focuses on plants and cyanobacteria engineers and pattern formation.

References

1936 births
Academic staff of Ben-Gurion University of the Negev
Ecologists
Israeli biologists
Living people
People from Tel Aviv
Keihan 3000 series. The  is an electric multiple unit (EMU) limited express train type operated by the private railway operator Keihan Electric Railway in Japan since 2008.

Formations 
, the fleet consists of six eight-car trains (3001 to 3006), formed as follows with three motored ("M") cars and five non-powered trailer ("T") cars.

As built (October 2008 – January 2021)

Sets with a Premium Car (January 2021 – present)
Sets with a Premium Car are formed as follows.

The Mc and M cars are each equipped with one single-arm pantograph.

Interior

Standard cars 
Passenger accommodation consists of 2+1 abreast transverse seating, with longitudinal seating at the car ends. Each car has priority seating and a wheelchair space. LCD information displays are featured above each door.

Premium Car 
Passenger accommodation for the Premium Car consists of twelve rows of 2+1 abreast reclining seats, and four additional reclining seats, for a total of 40 seats. Wheelchair accommodation is provided.

History 
The 3000 series trains were introduced into service on 19 October 2008, coinciding with the opening of the Keihan Nakanoshima Line. It was initially used on most service patterns, but later was redeployed on limited express services.

The trains received the Laurel Prize in 2009.

Premium Car introduction 
From 31 January 2021, all sets' sixth cars were replaced in service with newly built Premium Cars at a total cost of . The new cars allow premium services to be provided on all daytime express trains. While the outgoing cars' future was undecided at the time, it was confirmed that they will not be scrapped. In June 2023, outgoing car 3751 was renumbered 13871 and inserted into 13000 series set 13021, replacing car 13771 of that set. The following month saw car 3753 renumbered to 13873 and inserted into set 13023.

The 3000 series' Premium Cars share some attributes with those of the 8000 series fleet, such as the golden passenger door on each side and Nanoe X air purifiers. However, they feature a seat pitch of , a  increase over those of the 8000 series. They also feature compact "Infoverre Window Series Bar Type" external LCD destination displays.

The introduction of the Premium Cars led to the 3000 series receiving the Laurel Prize again in 2022, with the Japan Railfan Club citing the cars' "high degree of perfection".

References

External links

  

Electric multiple units of Japan
3000 series
Train-related introductions in 2008
Train-related introductions in 2021
Kawasaki multiple units
1500 V DC multiple units of Japan
Nye Frank. Nye Frank is an American dragster builder in the 1960s and 1970s.

Among others, Frank worked on the twin-engined dragsters Freight Train and Pulsator (as designer) the Setzer streamliner (designing and positioning the wings), Flying Wedge (building the body, along with Quin Epperly), and Spirit II (collaborating in building her with Craig Breedlove).

Notes

Sources
Taylor, Thom.  "Beauty Beyond the Twilight Zone" in Hot Rod, April 2017, pp.30-43.

 American automobile designers
drag racing
Promethium(III) fluoride. Promethium(III) fluoride or promethium trifluoride is a salt of promethium and fluorine with the formula PmF3. 

Promethium(III) fluoride is sparingly soluble in water. It reacts with metallic lithium to yield lithium fluoride and metallic promethium:

References

Promethium compounds
Fluorides
Lanthanide halides
Graphene plasmonics. Graphene is a 2D nanosheet with atomic thin thickness in terms of 0.34 nm. Due to the ultrathin thickness, graphene showed many properties that are quite different from their bulk graphite counterparts. The most prominent advantages are known to be their high electron mobility and high mechanical strengths.

 Thus, it exhibits potential for applications in optics and electronics especially for the development of wearable devices as flexible substrates. More importantly, the optical absorption rate of graphene is 2.3% in the visible and near-infrared region. This broadband absorption characteristic also attracted great attention of the research community to exploit the graphene-based photodetectors/modulators.

Plasmons are collective electron oscillations usually excited at metal surfaces by a light source. Doped graphene layers have also shown the similar surface plasmon effects to that of metallic thin films. Through the engineering of metallic substrates or nanoparticles (e.g., gold, silver and copper) with graphene, the plasmonic properties of the hybrid structures could be tuned for improving the optoelectronic device performances. The electrons at the metallic structure could transfer to the graphene conduction band. This is attributed to the zero bandgap property of graphene nanosheet.

Graphene plasmons can also be decoupled from their environment and give rise to genuine Dirac plasmon at low-energy range where the wavelengths exceed the damping length. These graphene plasma resonances have been observed in the GHz–THz electronic domain.

Graphene plasmonics is an emergent research field, that is attracting plenty of interest and has already resulted in a textbook.

Application
When the plasmons were resonant at the graphene/metal surface, a strong electric field would be induced which could enhance the generation of electron-hole pairs in the graphene layer. The excited electron carrier numbers linearly increased with the field intensity based on the Fermi’s rule. The induced charge carriers of metal/graphene hybrid nanostructure could be up to 7 times higher than that of pristine graphene ones due to the plasmonic enhancement.

So far, the graphene plasmonic effects have been demonstrated for different applications ranging from light modulation to biological/chemical sensing. High-speed photodetection at 10 Gbit/s based on graphene and 20-fold improvement on the detection efficiency through graphene/gold nanostructure were also reported. Graphene plasmonics are considered as good alternatives to the noble metal plasmons not only due to their cost-effectiveness for large-scale production but also by the higher confinement of the plasmonics at the graphene surface. The enhanced light-matter interactions could further be optimized and tuned through electrostatic gating. These advantages of graphene plasmonics paved a way to achieve single-molecule detection and single-plasmon excitation.

See also

 Surface plasmon polariton
 Nanomaterial

References

Graphene
Plasmonics
Metallurgical and Materials Engineering. Metallurgical and Materials Engineering is a peer-reviewed Open Access scientific journal, published by the Association of Metallurgical Engineers of Serbia. The first name of the journal was Metalurgija, published in 1995. The new name was adopted in 2012. The journal publishes contributions on fundamental and engineering aspects in the area of metallurgy and materials.

The journal publishes full length research papers, preliminary communications, reviews, and technical papers.

References

External links

English-language journals
Open access journals
Materials science journals
Academic journals established in 1995
Academic journals of Serbia
Honeywell FX5. The Honeywell FX5 was a 6,000lb-thrust (27kN) geared turbofan based on a technology demonstrator core. Aiming for a 20%-plus reduction in the cost of ownership from the TFE731-60 and to span a  family, it could have been certificated within 36 months. It was proposed for the Dassault Falcon 7X business jet launched in 2001, but the Pratt & Whitney Canada PW307 was finally selected. The Honeywell range comprises the previous  Lycoming ALF502/Honeywell LF507 and the subsequent  Honeywell HTF7000.

References

Honeywell
High-bypass turbofan engines
Geared turbofan engines
Pure homopolar generator. A pure homopolar generator (PHG)
 is an electric generator not requiring brushes or electronics or semiconductor parts to convert torque into direct current. In other words, this homopolar generator only requires theoretical homogeneous or actual (constantly or cyclically) homogenized magnetic field to be able to produce direct current. The theory of PHG is explained using Maxwell's equations. This term unifies all devices that work in line with this definition. PHG can be represented by patents, which should also work the other way round: US5977684 (A), PV2011-293 (CZ) application number 2011-293, AU5801890 (A).

Another group of patents with a superconductor shield or shield made of so far unknown material (low-voltage semiconductor with high current permeability or material that excludes magnetic field under normal temperatures): US5144179 (A), DE102012022152 (A1), CN1671030 (A)

See also

Pure homopolar motor

General

Rotating magnetic field brushless motors with electronics

References

External links

References to related patents and activities

  

   Another group

   Activities

Electrical generators
Harold Beach. Harold Beach (15 February 1913 – 24 January 2010) was a British engineer for Aston Martin, and their Chief Designer. He designed chassis and suspension for the iconic 1963 Aston Martin DB5, and the 1958 DB4 and 1965 DB6.

Early life
He was born in Acton in west London. He was educated privately and studied engineering at a  technical college.

Career
He began work for 30 shillings a week in 1928.

World War II
During the war he worked with the Hungarian-born Nicholas Straussler, working on military vehicles, including the innovative (and frequently lethal) floating tanks, which had a significant role in the Normandy landings (D-Day).

After the war he worked for Garner-Straussler Mechanisation in West London. Whilst there he saw a job advertisement for a design draughtsman with Aston Martin.

Aston Martin
The 1960s Aston Martin vehicles had the bodywork styled by Carrozzeria Touring Superleggera of Milan in Italy, and the engines developed by Tadek Marek (from Poland).

He started at Aston Martin on £11 a week in September 1950, working on a successor to the DB2, working with the Austrian Robert Eberan von Eberhorst. The DB4 was launched in 1958.

In the early 1970s, Aston Martin was in financial difficulties, and was sold in 1972.

Personal life
He married Mabel. He died aged 96 in January 2010.

References

External links
 Guardian 2010 obituary

1913 births
2010 deaths
Aston Martin people
British automobile designers
British automotive engineers
People from Acton, London
Sikorsky S-50. The Sikorsky S-50 was a smaller lighter version of the Sikorsky R-6 designed for the United States Army Air Corps as an observation helicopter with dual controls in 1943. The design emphasized minimal weight and was to be powered by a  Franklin 6ACV-298 engine turning a three blade main rotor constructed of metal and plywood covered by 2 layers of fabric. The tail rotor also had three blades made from laminated wood. Further weight savings of the design included the rejection of a conventional oleo strut tail wheel in favor of a tail skid on a pivot cushioned by three rubber doughnuts.
One full scale wooden mock-up was built but no flying examples were ever produced.

Specifications

References

Sikorsky aircraft
Flight 402. Flight 402 may refer to:

 El Al Flight 402 (1955), shot down after straying into Bulgarian airspace
 Canadian Pacific Air Lines Flight 402 (1966), a DC-8 crashed when landing in Tokyo in poor visibility conditions 
 TAM Transportes Aéreos Regionais Flight 402 (1996), a Fokker 100 with a faulty thrust reverser crashed after take-off from São Paulo

0402
Tim Fry. Tim  Fry (25 August 1935 – 17 May 2004), was an automotive engineer who, whilst in his twenties and working for the Coventry-based Rootes Group, designed the Hillman Imp, in conjunction with Mike Parkes. He subsequently became chief engineer at Chrysler Rootes. He left Rootes and set up the industrial design consultancy Smallfry in 1971.

Fry and Anthony Smallhorn were awarded the Prince Philip Designers Prize for the Sea Truck In 1979.

Life
Fry died of cancer on 17 May 2004 in Rugby, Warwickshire. He was married to Karin and had two daughters.

References

External links
Obituary, The Times (via The Imp Site)

British automotive engineers
1935 births
2004 deaths
Deaths from cancer in England
20th-century English businesspeople
Aurora XV-24 LightningStrike. The Aurora XV-24 LightningStrike is an experimental unmanned aerial vehicle created by Aurora Flight Sciences and partners Rolls-Royce and Honeywell. It was developed for the Vertical Take-Off and Landing Experimental Aircraft program.

Development
On 3 March 2016, DARPA awarded Aurora Flight Sciences $89.4 million to build and demonstrate their LightningStrike concept, beating out the other three competitors.
Phase II of the VTOL X-Plane project will fabricate two air vehicles before flight testing, planned by September 2018.
A 20 percent-scale demonstrator, weighing 325 lb (147 kg) using wings and canards made of carbon composites and 3D-printed plastics, was flown on 29 March 2016. The full-scale aircraft will be designated the XV-24A.

In April 2018, after the subscale demonstrator achieved the VTOL X-Plane major objectives, Darpa cancelled the project before flight testing due to no successor to inherit the program and growing commercial interest, as electric distributed propulsion is used in Aurora’s eVTOL aircraft developed with Uber Elevate.

Design 
The LightningStrike is a tilting-wing design powered by one Rolls-Royce AE1107C turboshaft engine, the same type used on the V-22 Osprey, that generates electric power via three Honeywell generators to run 24 distributed ducted fans, three each in the forward canards and 18 across the main wing.  Rather than using conventional engines like all the other entrants, the aircraft relies on "distributed electric propulsion" where the three generators that produce three megawatts (4,023 horsepower) of electricity, as much as a commercial wind turbine, power individual motors that drive the fans; each wing fan uses a 100 kW motor, and each canard fan a 70 kW motor. The air vehicle will weigh between , about the size of a UH-1Y Venom, and cruise faster than 300 knots.

See also
 Lilium Jet
 List of unmanned aerial vehicles
 List of active United States military aircraft

References

Unmanned aerial vehicles of the United States
Hybrid electric aircraft
Shvabe Holding. Shvabe Holding () is a holding company within the Russian state-owned Rostec group  responsible for development and production of high-tech optical-electronic systems both for military and civil purposes, manufacturing of optical, medical and energy-saving equipment.

Established in 2008, the company was known as JSC NPK Optical Systems and Technologies until October 26, 2012. Its companies manufacture electrooptical equipment, devices and defence systems and hi-tech civil products, such as systems for surveillance, aerospace monitoring and remote sensing, laser systems and facilities, distance gauges, target finders, photolithographic systems, precision elements and nanounits, medical equipment, surveying instruments, lighting equipment and much more. Shvabe manufactures about 6,000 product units supplied to 83 countries.

Since 2011, the holding company is registered in Yekaterinburg.

According to Rostec’s plans in 2013, Shvabe will launch an IPO within four or five years.

Structure
Companies of the holding:
 Krasnogorsky Zavod
 Lytkarino Optical Glass Factory
 NCLSK Astrophysika
 NPO Orion
 Novosibirsk Instrument-Building Plant
 Polyus Scientific Research Institute
 Research and technological institute of optical materials all-Russia scientific center "S.I.Vavilov State Optical Institute"
 Scientific and Production Association "Optica"
 Urals Optical & Mechanical Plant
 Vavilov State Optical Institute
 Vologda Optical-Mechanical Plant
 Zagorsk Optical-Mechanical Plant
 State Institute for Applied Optics, Kazan
 MZ Sapfir
 Precision Instrument Engineering Construction Bureau
 Shvabe Tech Lab, Kazan (before 2014 - TSKB "Photon" OJSC)

References

External links

  

 
Medical technology companies of Russia
Optics manufacturing companies
Companies based in Moscow
NSS-703. NSS-703 (also known as Intelsat 703, IS-703 and Intelsat 7-F3) is a geostationary communication satellite that was built by Space Systems/Loral (SSL). It is located in the orbital position of 29.5 degrees east longitude and it is currently in an inclined orbit. The same is owned by Intelsat and after sold to SES World Skies on November 30, 1998. The satellite was based on the LS-1300 platform and its estimated useful life was 15 years.

The satellite was successfully launched into space on October 6, 1994, at 06:35:02, using an Atlas II vehicle from the Cape Canaveral Air Force Station, United States. It had a launch mass of 3,695 kg.

The NSS-703 is equipped with 26 transponders in C band and 10 in Ku band to provide broadcasting, business-to-home services, telecommunications, VSATnetworks.

External links 
 Intelsat 703 TBS satellite
 Intelsat 7 Gunter's Space Page
 Intelsat 703 SatBeams

References 

Spacecraft launched in 1975
Intelsat satellites
SES satellites
Lev Levitin. Lev B. Levitin is a Russian-American engineer currently a Distinguished Professor at Boston University and a Life Fellow of the IEEE. His current research interests include information theory, physical aspects of computation, complex systems and quantum measurement. He is known for the Margolus–Levitin theorem.

References

Year of birth missing (living people)
Living people
Boston University faculty
Fellows of the IEEE
Russian engineers
American electrical engineers
Place of birth missing (living people)
Intelsat 705. Intelsat 705 (also known as IS-705 and Intelsat 7-F5) is a geostationary communication satellite that was built by Space Systems/Loral (SSL). It is located in the orbital position of 29.5 degrees west longitude and it is currently in an inclined orbit. The same is owned by Intelsat. The satellite was based on the LS-1300 platform and its estimated useful life was 15 years.

The satellite was successfully launched into space on March 22, 1995, at 06:18, using an Atlas IIAS vehicle from the Cape Canaveral Air Force Station, United States. It had a launch mass of 3,695 kg.

The Intelsat 705 is equipped with 26 transponders in C band and 10 in Ku band to provide broadcasting, business-to-home services, telecommunications, VSATnetworks.

See also

 1995 in spaceflight

External links 
 Intelsat 705 TBS satellite
 Intelsat 7 Gunter's Space Page
 Intelsat 705 SatBeams

References 

Spacecraft launched in 1995
Intelsat satellites