omniomni/omni-engineering huggingface dataset:
Bristol Siddeley BS.605. The Bristol Siddeley BS.605 was a British take off assist rocket engine of the mid-1960s that used hydrogen peroxide and kerosene propellant.

Design and development
The BS.605 design was based on the smaller of two combustion chambers of the earlier Armstrong Siddeley Stentor. A pair of retractable BS.605 engines were fitted to Buccaneer S.50 strike aircraft of the South African Air Force for hot and high operations. The BS.605 was also considered for the Bluebird CMN-8, a design for a supersonic land speed record car, to be driven by Donald Campbell.

Applications
Blackburn Buccaneer S.50

Engines on display
A complete BS.605 and exploded working parts of a second engine are on display at the Midland Air Museum.
A preserved BS.605 is part of the engine collection on display at the Royal Air Force Museum Cosford.
A preserved BS.605 is part of the engine collection on display at the Rolls-Royce Heritage Trust in Derby.

Specifications

See also

References

Aircraft rocket engines
BS605
Rocket engines using hot cycle hydrogen peroxide propellant
JATO
List of environmental engineers. Environmental engineers conduct hazardous-waste management studies to evaluate the significance of such hazards, advise on treatment and containment, and develop regulations to prevent mishaps. Environmental engineers also design municipal water supply and industrial wastewater treatment systems as well as address local and worldwide environmental issues such as the effects of acid rain, global warming, ozone depletion, water pollution and air pollution from automobile exhausts and industrial sources.

A 
 Linda Abriola
 Vincent Adams
 G. D. Agrawal
 Rodney John Allam
 Braden Allenby
 Takashi Asano

B 
 Michelle L. Bell
 Sarah Bell
 Diana Bendz
 Craig H. Benson
 Jacobo Bielak
 Gonzalo Blumel
 Tami Bond
 Tega Brain
 John Leck Bruce
 Harriet Bulkeley
 Anne Butler

C 
 Ken Caldeira
 Ann Marie Carlton
 Ferhan Çeçen
 Irina Chakraborty
 Kartik Chandran
 Chen Jining
 Ashraf Choudhary
 Reymond Clark
 Margarita Colmenares
 Robert Costanza

D 
 Enrico Dalgas
 Steve Davis
 Opha Pauline Dube

E 
 Peter S. Eagleson
 Marc Edwards
 Menachem Elimelech
 Isabel Escobar

F 
 Paul Falkowski
 Michael Fasham
 Carl Folke
 Efi Foufoula-Georgiou

G 
 Germán García Durán
 Robert A. Gearheart
 Debjani Ghosh
 Earnest F. Gloyna

H 
 Charles A. S. Hall
 Jim Hall
 Han Jeoung-ae
 Hao Jiming
 Chris Hendrickson
 Michael R. Hoffmann
 C. S. Holling
 David Holmgren

I 
 Jörg Imberger

J 
 Mark Jaccard
 Mark Z. Jacobson
 Jenna Jambeck
 Alfred Stowell Jones
 Sven Erik Jørgensen

K 
 Sonia Kéfi
 John Kineman

L 
 Douglas A. Lawson
 Margaret Leinen
 Cornelis Lely
 Swietenia Puspa Lestari
 Diana Liverman
 Bruce E. Logan
 Nancy G. Love
 Joseph Lstiburek

M 
 Donald Mackay
 Ramon Margalef
 Perry McCarty
 Ross E. McKinney
 Ramesh Sumant Mehta
 Richard O. Mines Jr.
 Dade Moeller
 Nicolas Moussiopoulos
 Catherine Mulligan
 Cornelius B. Murphy Jr.

N 
 Deb Niemeier

O 
 Howard T. Odum
 Daniel Oerther
 William J. Oswald

P 
 James F. Pankow
 Ralph Patt
 Sarah Peters
 George Pinder
 Lawrence R. Pomeroy
 Mia Krisna Pratiwi

R 
 Lutgarde Raskin
 Charlene Ren
 Ellen Swallow Richards
 Bruce Rittmann
 Donald Van Norman Roberts
 Paul V. Roberts
 Joeri Rogelj

S 
 David Sedlak
 John Richard Sheaffer
 Anne C. Steinemann
 Suthan Suthersan

T 
 Irene Tarimo
 Valerie M. Thomas
 John Todd
 Kennie Tsui
 Mustafa Tuna

U 
Robert Ulanowicz

V 
 Daniel A. Vallero
 George Van Dyne
 Marcos Von Sperling

W 
Brian Walker
Gary White
Abel Wolman
Eric Franklin Wood

References 

 
Environmental engineers
Environmental engineers
SMEMA. SMEMA is an acronym for the Surface Mount Equipment Manufacturers Association.

In 1999 they merged with the IPC to form the IPC SMEMA Council.

One standard they have is for the wiring of communications between Surface mount technology producing machinery such as a Stencil Printer or a Pick and Place Machine on an Electronics production line. This allows the machines, including the "bridges" between the two known simply as conveyors, to communicate that they are busy, or awaiting a circuit board. The communication only goes sequentially, as there is no addressing. Instead the machine's SMEMA cables connect to each other's upstream or downstream plug. The plugs and wires are multimate connectors and receptacles consisting of 14 wire connections. However, only 4 wires are used for data, while the 8th pin connection is the shielding.

History
In 1984 a group of North American capital equipment suppliers started their collaboration to develop the original SMEMA specification. No formal document was available until 1987. Core companies credited with founding of SMEMA are Dynapert, Zevatech, Universal Instruments, MPM and BTU. Core members include Ernest Roberts (Dynapert), Robert Black (Zevatech), Patrick Torigian (Universal Instruments) and Gary Freeman (MPM).

The current version of the standard is IPC/SMEMA 9851-2007, published in February 2007, which superseded version 1.2.

In April 2017 the Hermes protocol was released as an intended upgrade to and replacement of SMEMA. By the end of 2018 IPC has confirmed to recognize The Hermes Standard to be the successor to “the SMEMA Standard” IPC-SMEMA-9851, which has been the only globally accepted and broadly established standard for machine to machine communication in SMT with regards to PCB handover. Accordingly, The Hermes Standard was assigned an IPC naming code: It can now officially be referred to as IPC-HERMES-9852.

Specifications
The specifications are for single board transfer systems with conveyors as the transporters. Specifications state that the boards should be moving from left to right although the same standard does apply to board transfers going right to left. For proper sequencing of boards, two signal lines should be used; "Board Available" and "Machine Ready", the signal "Failed Board Available" is optional 

Conveyor Height: Each machine shall have the transport conveyor height adjustable from 940 to 965mm (37 to 38 in) from the floor to the bottom of the PC board.

Fixed Rail: For the purpose of the standard, the front rail is defined as the fixed rail.

Tooling Pins: Tooling pins, if used, should be on the front edge of the board (next to the fixed transport rail). A recommended hole diameter is 4mm (0.157 in) Distance from the edge should be 7.6mm (0.299 in).

References 

Technology trade associations
USS Esteem. USS Esteem (AM-438/MSO-438) was an  acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent the safe passage of ships.

The first ship to be named Esteem by the Navy, AM-438 was launched 20 December 1952 by Martinolich Shipbuilding Co., San Diego, California; sponsored by Mrs. C. H. Davis; reclassified MSO-438, 7 February 1955; and commissioned 10 September 1955.

Deployed to Persian Gulf from 1987 to 1990 under President Reagan's direction to protect the world's oil supply from the threat of Iranian mines (the "Tanker War"). Participated in Operation EARNEST WILL.

West Coast and Far East operations 

Esteem sailed out of Long Beach, California, her first home port, for training in mine warfare and minesweeping exercises along the U.S. West Coast until 4 March 1957, when she departed for her first tour of duty with the U.S. 7th Fleet in the Far East. Along with visiting Japanese and Korean ports and Hong Kong, she exercised with the mines of the navies of the Republic of China and the Republic of Korea, aiding in the training of friendly forces in new techniques.

Returning to Long Beach in September 1957, Esteem resumed her west coast operations for the next year, then sailed 6 October 1960 for exercises with the Royal Canadian Navy off Nootka Sound, British Columbia. During the next month, she circumnavigated Vancouver Island, and visited several Canadian ports, returning to Long Beach 5 November.

During her 1961-62 tour of duty in the Far East, she again exercised with ships of the Chinese Navy, and also visited Bangkok, Thailand, to train with the Royal Thai navy. In December 1961, she went to Saigon, Vietnam and worked with the Vietnamese navy.  Based out of Danang she provided patrol off the coast of Vietnam through May 1962. On June 27th of 1962, she began an overhaul which continued through most of the remainder of the year.

Final status 

Esteem was decommissioned in Seattle, Washington on 20 September 1991 and stricken on 30 September 1991. She was sold for scrapping in 2000.

Unit awards 
17 unit awards, including:

 Navy Unit Commendation
 Combat Action Ribbon (x 2)
 Armed Forces Expeditionary Medal (x 4)
 Vietnam Service Medal (x 6)
 Republic of Vietnam Meritorious Unit Citation, Gallantry Cross Medal Color with Palm (x 3)
 SECNAV Letter of Commendation

Notes

References

External links 

 NavSource Online: Mine Warfare Vessel Photo Archive - Esteem (MSO 438) - ex-AM-438
 

Agile-class minesweepers
Ships built in San Diego
1952 ships
IEC 62379. IEC 62379 is a control engineering standard for the common control interface for networked digital audio and video products. IEC 62379 uses Simple Network Management Protocol to communicate control and monitoring information.

It is a family of standards that specifies a control framework for networked audio and video equipment and is published by the International Electrotechnical Commission. It has been designed to provide a means for entering a common set of management commands to control the transmission across the network as well as other functions within the interfaced equipment.

Organization
The parts within this standard include:
 Part 1: General,
 Part 2: Audio,
 Part 3: Video,
 Part 4: Data,
 Part 5: Transmission over networks,
 Part 6: Packet transfer service,
 Part 7: Measurement (for EBU ECN-IPM Group)

Part one is common to all equipment that conforms to IEC 62379 and a preview of the published document can be downloaded from the IEC web store here, a section of the International Electrotechnical Commission web site. More information is available at the project group web site.

History

2 October 2008
Part 2, Audio has now been published and a preview can be downloaded from the IEC web store, a section the International Electrotechnical Commission web site.

31 August 2011
A first edition of Part 3, Video has been submitted to the IEC International Electrotechnical Commission technical committee for the commencement of the standardization process for this part.
It contains the video MIB required by Part 7.

Part 7, Measurement, has been submitted to the IEC International Electrotechnical Commission technical committee for the commencement of the standardization process for this part.
This part specifies those aspects that are specific to the measurement requirements of the EBU ECN-IPM Group, a member of the Expert Communities Networks. An associated document EBU TECH 3345 has recently been published by the EBU European Broadcasting Union.

16 December 2011
Part 3 (Document 100/1896/NP) and Part 7 (Document 100/1897/NP) have been approved by IEC TC 100.

3 April 2014
Part 5.2, Transmission over Networks - Signalling, has now been published and can be downloaded from the IEC web store,

5 June 2015
IEC 62379-3:2015 Common control interface for networked digital audio and video products - Part 3: Video has now been published and can be downloaded from the IEC web store.

16 June 2015
IEC 62379-7:2015 Common control interface for networked digital audio and video products - Part 7: Measurements has now been published and can be downloaded from the IEC web store.
IEC 62379-7:2015 is the standardised (and extended) version of EBU TECH 3345 - End-to-End IP Network Measurement - MIB & Parameters, which can be obtained from here:  published by the EBU European Broadcasting Union.

References

External links 

Audio engineering
Networking standards
Broadcast engineering
62379
Control engineering
Systems engineering
Artificer sergeant major. Artificer sergeant major  (ASM) is a senior warrant officer appointment in the technical branches of the British, New Zealand and Australian Armies.

British Army
Artificer sergeant major is an appointment held by a warrant officer class 1 in the Royal Electrical and Mechanical Engineers (REME), the corps of the British Army whose function is the repair and recovery of all mechanical and electrical equipment. The ASM is normally the senior tradesman in  large REME units  and is the technical advisor to the unit; the senior tradesman in smaller units such as light aid detachments is normally a warrant officer class 2 (artificer quartermaster sergeant). An ASM must have passed the artificer training course and served as an artificer electronics/weapons/vehicles or similar discipline as a staff sergeant and warrant officer class 2 (holding the appointment of artificer quartermaster sergeant) prior to promotion to WO1.

Australian Army
The title is also used in the Australian Army in the Royal Australian Electrical and Mechanical Engineers (RAEME), and applies to the senior soldier (tradesman) in the brigade administration support battalion, or combat service support battalion, or workshop troop, or technical support unit. The appointment may be held by a warrant officer class 1 or 2.

Notes

Military appointments of the British Army
Royal Electrical and Mechanical Engineers
Military appointments of Australia
Warrant officers
Soares da Costa. Soares da Costa SGPS, S.A. (, Sociedade de Construções Soares da Costa S.A.) is a Portuguese company. Its main activities are civil engineering and construction, public works, real estate, housing construction, production of construction materials and other related activities. Grupo Soares da Costa is one of the largest groups in the civil construction and public works sector in Portugal. The corporate structure is based on three sub-holdings which correspond to three business groups: Construction, Concessions and Real Estate.

The company was founded in 1918 in Oporto by José Soares da Costa. Today it possesses a strong international focus (over 70% per cent of their business volume in 2012 was of an international nature), with offices in Angola, Mozambique, United States (Florida), Brazil, Romania and Israel. Ranked among the 100 largest groups in the sector, the company maintains a permanent presence in the Portuguese speaking African countries. The activities of the Group in the international market have increased in importance, and in 2012 represented 70.5% of the business volume. The internationalization process began in 1979 with the creation of an associated company in Venezuela, reaching global dimension with activities in territories as diverse in nature as Iraq, Spain, Egypt, Germany, Macau, Barbados and Romania.

In a worldwide ranking performed by the North American magazine Engineering News-Record (2013), the company holds the 108th position as an international contractor.

References

External links
Official website

Conglomerate companies of Portugal
Construction and civil engineering companies of Portugal
Construction and civil engineering companies established in 1918
Portuguese companies established in 1918
Redes Energéticas Nacionais. REN - Redes Energéticas Nacionais, SGPS, S.A. (formerly Rede Eléctrica Nacional S.A.) is a Portuguese energy sector company which is the current concession holder of the country's two main energy infrastructure networks: the National Electricity Transmission Grid (RNT) and the National Natural Gas Transportation Grid (RNTGN). It is responsible for the planning, construction, operation, maintenance and global technical management of both these grids and associated infrastructures. Its stated mission is to provide a guarantee of an uninterrupted and stable supply of energy while ensuring equal rights of grid access to the remaining participants in the energy market, including consumers, generators and distributors.

The company is also involved with the storage and transportation of liquefied natural gas, and owns and operates an LNG regasification terminal located at Sines.

External links

Oil and gas companies of Portugal
Companies listed on Euronext Lisbon
Electric power transmission system operators in Portugal
Energy companies established in 1994
Non-renewable resource companies established in 1994
1994 establishments in Portugal
China–Portugal relations
Issoire APM 30 Lion. The Issoire APM 30 Lion is a French three-seat light aircraft manufactured by Issoire Aviation of Issoire. Designed as a trainer, the aircraft is type certified under CS-VLA and is supplied complete and ready-to-fly.

Design and development
The aircraft features a cantilever low-wing, a three-seat enclosed cockpit under a bubble canopy, fixed tricycle landing gear with wheel pants and a single engine in tractor configuration.

The aircraft is made from composite materials. Its  span wing employs a NACA 63-618 airfoil, has an area of  and mounts flaps. The standard engine is the  Rotax 912S four-stroke powerplant.

Specifications

References

Low-wing aircraft
2000s French civil utility aircraft
Single-engined tractor aircraft
Aircraft first flown in 2005
APM30
Ethylene vinyl alcohol. Ethylene vinyl alcohol (EVOH) is a formal copolymer of ethylene and vinyl alcohol.  Because the latter monomer mainly exists as its tautomer acetaldehyde, the copolymer is prepared by polymerization of ethylene and vinyl acetate to give the ethylene vinyl acetate (EVA) copolymer followed by hydrolysis.  EVOH copolymer is defined by the mole % ethylene content: lower ethylene content grades have higher barrier properties; higher ethylene content grades have lower temperatures for extrusion.

The plastic resin is commonly used as an oxygen barrier in food packaging.  It is better than other plastics at keeping air out and flavors in, is highly transparent, weather resistant, oil and solvent resistant, flexible, moldable, recyclable, and printable.  Its drawback is that it is difficult to make and therefore more expensive than other food packaging.  Instead of making an entire package out of EVOH, manufacturers keep costs down by coextruding or laminating it as a thin layer between cardboard, foil, or other plastics.

It is also used as a hydrocarbon barrier in plastic fuel tanks and pipes.

Industrial production 

Because of the high capital cost to build an EVOH plant, and the complexity of making a food grade product, only a few companies produce EVOH:

Kuraray produces EVOH resin under the name "EVAL," with a 10,000 ton plant in Okayama, Japan; a 58,000 ton plant in the U.S. (near Houston, TX) under its subsidiary Kuraray America; and a 35,000 ton plant in Belgium under its subsidiary EVAL Europe.

Nippon Gohsei produces EVOH under the trade name Soarnol.  It has production sites in Mizushima, Japan; La Porte, Texas in the USA; and at Salt End, Hull, England.

Chang Chun Petrochemical produces EVOH under the trade name EVASIN.  It has a single site in Taipei, Taiwan.

Food packaging 

Due to its strong barrier against gasses (especially oxygen), odors and flavours, food packaging manufacturers use EVOH in their packaging structure to extend the shelf life of food products. 

A downside of EVOH is its relatively high moisture sensitivity, meaning that the barrier capabilities of EVOH decrease in environments with high humidity. As such, EVOH is often applied within a multilayer film. Here, one or more inside layers contain EVOH, but the outside layers consist of a different plastic that is less sensitive to moisture, such as polyethylene.

Medical applications 

EVOH is used in a liquid embolic system in interventional radiology, e.g. in Onyx. Dissolved in dimethyl sulfoxide (DMSO) and mixed with a radiopaque substance, ethylene vinyl alcohol copolymer is used to embolize blood vessels.

References 

Interventional radiology
Plastics
Packaging materials
Copolymers
Siddeley Tiger. The Siddeley Tiger was an unsuccessful British aero engine developed shortly after the end of World War I by Siddeley-Deasy. Problems encountered during flight testing caused the project to be cancelled.

Design and development
Developed using two modified cylinder banks from the Siddeley Puma, the Tiger was a liquid-cooled 60-degree V12 engine with the advanced feature of an electric starter motor protected by a friction clutch. A reduction gear arrangement was provided for the propeller drive with a ratio of 0.559:1. The company claimed a power output of 600 hp (447 kW) but this was regarded as optimistic. Flight testing by a Royal Aircraft Establishment test pilot, Frank Courtenay, revealed problems and his opinion of the engine was low as the following quote shows:

Application and cancellation
The Tarrant Tabor, a giant triplane bomber was designed to use the Tiger but redesigned to use other engines when it became clear the Tiger would not be available soon enough.
The only aircraft in which the Siddeley Tiger flew was the ill-fated prototype of the twin-engined Siddeley-Deasy Siniai of which three were planned to be produced. Major problems with both the engines and this experimental bomber aircraft led to cancellation of the projects.

The Siddeley Tiger marked the end of the aero engine line started by Beardmore and Siddeley-Deasy. The name was later re-used for an Armstrong Siddeley radial engine.

Specifications (Tiger)

See also

References

Notes

Bibliography

 Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. 
 Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. .

External links
 Contemporary technical description of the engine with photographs.

Tiger
1920s aircraft piston engines
V12 aircraft engines