omniomni/omni-engineering huggingface dataset:
Methacrylic anhydride. Methacrylic anhydride is a liquid which reacts with water exothermically.

It can also react with hydroxyl and amino groups present in some organic compounds leading to covalent attachment of methacryloyl moieties. These functional groups could be successfully used either in subsequent polymerisation or reactions with thiols. For example, chitosan modified by methacryloylation exhibits better ability to adhere to mucosal surfaces (mucoadhesion) due to its reactivity with thiols groups present in cysteine domains of mucins.

Uses
Methacrylic anhydride is used as an intermediate agent in plastics, material, and resin manufacturing.

References

Carboxylic anhydrides
Shinano River incident. The  was the massacre of up to 100 Korean laborers in July 1922 who were working for the Okura zaibatsu at the construction site of a power plant on the Shinano River.

Background 
Shin'etsu Electric Power Inc., later absorbed into the Tokyo Electric Light Company and finally the Tokyo Electric Power Company, started building hydroelectric plants in July 1922 including Nakatsu Power Plant #1 on the Nakatsu River which is a tributary of the Shinano River. The Okura zaibatsu was put in charge of constructing it. Over 1,200 construction workers were assembled, of whom over 600 were Koreans. Their strategy was to employ a large number of labourers at low wages who were detained in cramped, low-grade dormitories referred to as tako-beya, or "octopus rooms". Furthermore, the Okura group’s management believed that the labourers had a lazy work ethic and treated them violently.

Massacre 
In July 1922, dozens of Koreans who tried to escape the construction site were gunned down or otherwise killed by the plant foremen. The workers' bodies were then dipped in cement, and cast into the Shinano River.

The massacre was exposed when the corpses of the Koreans gradually drifted from the upper course of the river over several days after the start of the construction. This caused an uproar in the parts of the Niigata Prefecture along the river. Tokyo’s Yomiuri Shimbun picked up the story on 29 July 1922. Afterwards, Japanese-Koreans formed the Board of Inquiry into the Conditions of Resident Korean Laborers, and investigated work conditions for Zainichi Koreans.

The people who were behind the Board of Inquiry were central in the formation of the Tokyo League of Korean Labor in November 1922, and in December the Osaka League of Korean Labor was established.

Aftermath
The public uproar which this incident created was partially responsible for the development of trade unions for Korean workers in Japan.

See also 
Ketto Dam
Pak Yol
Fumiko Kaneko

References

Bibliography 
Manabu Miyazaki『不逞者』Gentosha, 1999, 

1922 in Japan
History of Niigata Prefecture
History of Nagano Prefecture
Japan–Korea relations
Socialism in Japan
Labour movement in Japan
Zainichi Korean history
Massacres in Japan
Massacres in 1922
July 1922
1922 murders in Japan
Anti-Korean sentiment in Japan
Korea under Japanese rule
Anti-Korean violence
20th-century mass murder in Japan
Internal Fire Museum of Power. The Internal Fire Museum of Power is a museum of internal combustion engines in West Wales. The museum's collection is mostly of larger stationary diesel engines, as used for generating sets and pumping stations. The museum is located at Tan-y-groes, Ceredigion, near Cardigan.

Exhibits

Most of the engines have been restored to working order. Several engines are in operation when the museum is open.

Diesel
The museum has the oldest working diesel engine in the UK, a 1912 Sulzer single cylinder air-blast injection Diesel, an example of the original Rudolf Diesel design.

Steam
The museum houses over 200 tons of working engines in nine halls and in 2020 was in the process of creating a new steam hall to house a 1903, J & E Wood, 500 hp tandem compound along with an 1879, John Penn, twin cylinder oscillating paddle steamer (ex Empress) as well as a number of smaller engines including the only surviving Petter steam engine.

In 2017, the museum's second Engineering Heritage Award exhibit arrived. A 1901, 140 bhp three cylinder Willans engine generating set had been used until 1957 at the Maples furniture shop in London. On retirement this had been placed on display at the original Willans factory in Rugby

Gas turbine
One of the museum's most unusual exhibits was a 'Pocket Power Station', powered by a Bristol Proteus gas turbine engine. The regional electricity board installed several 2.7MW, remote-operated, generation sets for peak load powered by the Proteus. Designed to run for ten years many were still in use forty years later. In 2010 this was recognised with an Engineering Heritage Award.

See also 
 Anson Engine Museum
 Prickwillow Museum
 Museum of Power, in the former Southend Waterworks, Essex

References

External links 

 

Technology museums in the United Kingdom
Industry museums in Wales
Internal combustion engine
Science museums in Wales
Museums in Ceredigion
Sugata Sanyal. Sugata Sanyal is a Professor in the School of Technology and Computer Science at Tata Institute of Fundamental Research. He is well known for his contributions in the field of Network Security and Computer Architecture.

Education 
Sugata Sanyal received a PhD in Computer Science in 1992 from University of Mumbai. Before that he received his master's degree from IIT Kharagpur in 1973 specializing in Electronics and Electrical Engineering and bachelor's degree in Electronics and Telecommunication Engineering from Jadavpur University in 1973.

Career 
Sugata Sanyal joined the School of Technology and Computer Science at Tata Institute of Fundamental Research in 1973 and has been working there since then. He was also a visiting professor in University of Cincinnati, Ohio, USA from July 2003 to September 2003. He has been actively involved in research and development activities and has over 100 publications in peer reviewed international journals. He also played a major role in the development of various projects of national importance. During 1973–1985, he was involved in developing a large complex real-time multi-computer based Integrated Data Handling System for On Line Air-Sector Control. This project was a major national achievement which earned him the Vividhlaxi Audyogik Samsodhan Vikas Kendra Award (VASVIK). During 1977–1980, he was also involved in development of 16 bit, highly reliable computer system. The Processor acted as the Central Controlling Element for a rugged mobile exchange of the High Availability Computerized System class. This Real Time system was widely used by various Indian groups. During the period of 1978- 1980, he was involved in development of 3D Scanning Radar Attachment Project which was connected with the 3D Scanning Radar of the Cyclone Warning Radar Station of Indian Meteorological Department. Moreover, he has been actively involved in numerous projects in the area of Network, Security, Parallel Processing and Computer Algorithms.

Honors 
 Recipient of IEEE distinguished Lecturer award in 1997.
 Co-recipient of Vividhlaxi Audyogik Samsodhan Vikas Kendra Award (VASVIK) for Electrical and Electronics Science and Technologies for the year 1985 for successful and completely indigenous design, development, testing, know-how transfer to production unit and final successful live field -trial of a large complex real-time multi-computer based Integrated Data Handling System for On Line Air-Sector Control.
 Recipient of first class first with honours in B.Tech. with three gold medals.
 Senior member of IEEE
 Life member of ACM.
Sugata Sanyal is also currently serving in the editorial and advisory board of several international journals.

References 

Year of birth missing (living people)
Living people
Indian computer scientists
Walter Gemma. The Walter Gemma was a Czechoslovakian nine-cylinder, air-cooled, radial aero engine that was developed and manufactured in the early 1930s by Walter Aircraft Engines.

Applications
Nuri Demirağ Nu D.36
Praga E-39

Engines on display
A preserved example of the Walter Gemma engine is on display at the following museum:
Finnish Aviation Museum

Specifications

See also

References

Notes

Bibliography

 Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. 

Gemma
1930s aircraft piston engines
Aircraft air-cooled radial piston engines
Mechanical connections. Mechanical rebar connections, also known as mechanical splices or mechanical coupler, are used to join lengths of rebar together to transfer forces from one steel rebar to another.

Mechanical couplers can be advantageous in comparison with conventional methods of lap splicing because of the requirement for less steel for overlapping. It is more effective in the seismic detailing to avoid reinforcement congestion problems.

The couplers are also used in pre-cast construction.

Use
Any two bars of same or different diameters are joined using the couplers by rotating like nut and bolt.

Notes
Orsman, Richard (2011). Mechanical Splicing, 08 (Devoran Metals).

References

External links 
 Youtube advantages of mechanical splicing

Construction equipment
Museum für Luftfahrt und Technik. The Museum für Luftfahrt und Technik Wernigerode is an aviation museum located in the German town of Wernigerode near Halberstadt. Many aerospace exhibits are on display including fixed-wing aircraft, helicopters and aircraft engines. The main display is contained within two buildings with some aircraft displayed externally. In addition to the aircraft exhibits a number of cockpit sections and a collection of ejection seats are also held by the museum.

History
The museum opened to the public on 1 June 1999. In 2016, the museum opened two new buildings with a total of 2,100 square meters.

Aircraft on display
The museum has over 45 aircraft on display and over 1,000 exhibit items.

Piston engine aircraft
Antonov An-2R 1G 194-27
Dornier Do 27B-1 56+18
Dornier Do 28D-1 4033
LET Aero 45S 04-013
Nord 1101 81
Piaggio P.149
Zlín Z-37A 1920

Turboprop aircraft
Transall C-160 51+01

Jet aircraft

BAC Jet Provost T4 XS217
Canadair Sabre JB-112
Dassault Mirage IIIRS 17-26-145
de Havilland Venom J-1635
Fiat G.91 BD+248
Hawker Hunter F.4 WV276
Lockheed T-33A 95+20
Lockheed F-104G Starfighter 20+07
Lockheed F-104G Starfighter 22+45
Lockheed F-104G Starfighter 23+09
Mikoyan-Gurevich MiG-21 SPS 22+22
Mikoyan-Gurevich MiG-23 MF 20+06

Gliders
Scheibe L-Spatz

Helicopters
Aerospatiale Alouette II
Aerospatiale Alouette III
Bell UH-1D
Hughes 269
MBB Bo 105CB 139
Mil Mi-2 543620074
Westland Whirlwind HAR.10 XP339

Aircraft engines

Piston engines
Avia M462
Shvetsov ASh-82
Wright R-1300

Gas turbine engines

Allison J33
Bristol Siddeley Orpheus
General Electric J79
Klimov GTD-350
Rolls-Royce Avon
Rolls-Royce Tyne
SNECMA Atar
Turbomeca Marboré

See also
List of aerospace museums

References
Notes

External links

Museum für Luftfahrt und Technik Wernigerode
Museum für Luftfahrt und Technik Wernigerode - Panoramic image viewer

Aerospace museums in Germany
Museums in Saxony-Anhalt
Museums established in 1999
Museum fur Luftfahrt und Technik
Chamravattom Regulator-cum-Bridge. The Chamravattam Regulator-cum-Bridge, also known as Chamravattam Palam or Chamravattam Bridge, Chamravattam RcB, or Chamravattam Project, is built across the Bharathapuzha aka Nila near Chamravattam, Triprangode, in Malappuram district. This seems to be the largest of its type in Kerala, India. The bridge has  length and  width. It connects Ponnani and Tirur. Regulator cum bridge is now just working as a bridge due to faulty design as per the conclusion in the detailed technical investigation report done by the Indian Institute of Technology, Delhi on the directions of the Government of Kerala. There is also a false allegation that sand for construction was taken from river without payment for the same though the sand was paid for by the contractors at prices fixed by the Government of Kerala. This price was based on the prevailing sand prices in the open market and arrived at by the revenue department of Kerala.  On account of these false allegations, the contractors for the work are yet to be paid in full for this work though it’s been nearing a decade since the work has been completed and the bridge has been used on a 24/7 basis throughout. 

The Chamravattam Bridge was inaugurated by the Chief Minister of Kerala, Oommen Chandy, on 17 May 2012. This project has dual goals of irrigation and reducing the distance by road between Kozhikode and Kochi by . The project was conceptualized as early as 1977 or 1984, but was dormant for some time.

The foundation stone for the project was laid by then Chief Minister V. S. Achuthanandan on 13 September 2009.
The project cost is estimated at .

See also 
 Triprangode
 Ponnani
 Kuttippuram bridge

References 

Bridges in Kerala
Bridges completed in 2012
Buildings and structures in Malappuram district
WAGR D class (diesel). The D/DA class are a class of diesel locomotives built by Clyde Engineering, Granville for the Western Australian Government Railways in 1971-1972.

History
Five D class were ordered by the Western Australian Government Railways to haul bauxite services. These were followed by seven DA class locomotives. These differed in not having dynamic brakes and were 12 tonnes lighter.

In August 1998, D1564-65 were sold to Tranz Rail and rebuilt with new cabs at Hutt Workshops before being sent to TasRail in June 2001 entering service as 2020-21. The new cabs resembled the cab that was fitted to DXR8007 at the time. In September 1998, D1563 was exported to Chile, where it would be overhauled and operated by the Ferrocarril de Antofagasta a Bolivia.

The remaining nine locomotives were included in the sale of Westrail to Australian Railroad Group in October 2000. When this was split in June 2006, DA 1577 was transferred to Genesee & Wyoming Australia with the South Australian business with the other eight passed to QR National with the Western Australian operations. D1562 and DAZ1902-06 were exported to South Africa in January 2015 and are now owned by APEX Industrial.

TasRail D class

The two D class locomotives purchased by Tranz Rail in 1998 were rebuilt at Hutt Workshops, as a cheaper alternative to buying new locomotives. Tranz Rail rebuilt the two locomotives before transferring them to ATN Tasrail of which they were a shareholder. 

The locomotives were rebuilt with a new design of universal cab with a shorter low hood and more angular appearance (the same cab style used on Tranz Rail's DXR 8007 first cab rebuild). The two locos were repainted into the Wisconsin Central Maroon livery, and were renumbered in the 202X series from the 156X series as they were in Western Australia.

The two locomotives arrived at Bell Bay on 15 June 2001. Because they lacked traction motors when the locos were rebuilt, surplus English Electric EE548 traction motors were fitted to the locos at East Tamar Workshops. The two locos entered service a few months after arrival. Following a large number of traction motor failures, the traction motors were replaced by second hand GM motors in 2009.

Withdrawals and disposal
With the introduction of the TR class, both were withdrawn in mid-2014. Both were stored at East Tamar Workshops and sold to Watco Australia in 2017 for use on infrastructure trains. D 2020 was shipped from Burnie on 5 May 2017 on Toll ship called the Victorian Reliance, while 2021 was shipped on 13 May on Toll ship named the Tasmanian Achiever. Both locomotives were rebuilt at Bendigo Workshops, Victoria, and shipped to Perth in January 2018.

Class list (D)

Class list (DA)

See also

Westrail DB class

References

External links

History of Western Australian Railways & Stations gallery

Aurizon diesel locomotives
Clyde Engineering locomotives
Co-Co locomotives
Diesel locomotives of Western Australia
Railway locomotives introduced in 1971
3 ft 6 in gauge locomotives of Australia
Diesel–electric locomotives of Australia
Westrail N class. The N class was a class of diesel locomotives built by Comeng, Bassendean for Westrail between 1977 and 1979.

History

Eleven were built all for use on the Western Australian narrow gauge network, primarily to haul mineral trains in the south east. Between July 1982 and June 1983, the first four members of the class had their vacuum brake equipment replaced with Westinghouse air brake systems, and were redesignated as the NA class. While liked by crews for their ride quality and power, they suffered from reliability problems and most were withdrawn in the early 1990s. The last were withdrawn in 1997.

In January 1995 two of the NA class were converted to standard gauge using bogies from Mount Newman Alco M636s, and redesignated as the NB class. In February 1998 these two were sold to Austrac Ready Power, Junee. These were sold in 2004 to Patrick Port Link, Adelaide and again in September 2011 to Australian Locolease who redesignated as the 18 class and leased them to El Zorro for use in Victoria. After both locomotives remaining unused for some years, 1872 was scrapped in early 2020, whereas 1873 languished for another two years before being scrapped in mid-2022.

Austrac also purchased NA1874 but it was sold without use to South Spur Rail Services in 2001 and converted for standard gauge operation in January 2006. It was scrapped in 2014.

Status table

References

External links

Co-Co locomotives
Commonwealth Engineering locomotives
Diesel locomotives of Western Australia
Railway locomotives introduced in 1977
Standard gauge locomotives of Australia
3 ft 6 in gauge locomotives of Australia
Diesel–electric locomotives of Australia
Small copper carrier. Small copper carrier or SCC is a small molecule that transports copper in urine.  It is excreted in the kidneys in humans or mice where the liver is unable to excrete excess copper in bile.  This happens in Wilson’s disease where the presence of copper in urine is a diagnostic. It was discovered by Lawrence Wilson Gray and Svetlana Lutsenko.  The molecule is 2 kDa. Its exact nature is not yet known but is presumed to be a peptide.

The same peptide also appears in blood and urine of many different mammals.  Its copper free molecular weight is 1329.5. In neutral conditions the small copper carrier molecule has a negative charge. Copper is bound to the carrier via oxygen and nitrogen (O or N).

References

Copper compounds
Human proteins
Metalloproteins
AeroDreams. AeroDreams S.A. is a defense contractor based in Buenos Aires, Argentina. It has been working since 2001 in developing unmanned aerial vehicles for military and non-military use. The company's CEO is Raúl Fernández.

The company developed and manufactured the Chi-7 helicopter.

The Strix project for the Argentine Air Force (Fuerza Aérea Argentina, FAA) was developed by this company.

List of aircraft 
Several of the models listed below are (or were) manufactured in several variants:
 AeroDreams Chi-7
 AeroDreams Strix
 AeroDreams Petrel
 AeroDreams Ñancú
 AeroDreams ADS-401
 Guardian

See also 
 Nostromo Defensa
 Cicaré

References

External links 
 Official web-site

Aircraft manufacturers of Argentina
Helicopter manufacturers of Argentina
Defense companies of Argentina
Manufacturing companies based in Buenos Aires
Unmanned aerial vehicle manufacturers
Companies established in 2001
Argentine brands
2001 establishments in Argentina
RV Investigator. RV Investigator is an Australian marine research vessel which was designed by RALion (joint venture between Robert Allan Ltd. and Alion Science and Technology). It was constructed in Singapore and is owned and managed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), through Australia's Marine National Facility, with its operations funded by the Australian Government to undertake oceanographic, geoscience, ecosystem and fisheries research. In May 2009 the Australian Government allocated A$120 million for a new ocean-going research vessel to replace the 1972 built RV Southern Surveyor, which has served as the principal research ship for Australia's Marine National Facility since 1988. RV Investigator was transferred from Sembawang Shipyard to the delivery crew on 5 August 2014 for pre-departure testing and setup. The vessel arrived at its home port of Hobart on 9 September 2014 and was officially launched on 12 December 2014.

Specifications  
The RV Investigator is able to accommodate up to 40 scientists, go to sea for up to 60 days at a time and spend up to 300 days of the year at sea on research voyages. Operating costs are estimated to be $140,000 per day. Special features of the ship are a "gondola", similar to a winged keel, mounted 1.2 m below the hull, and two drop keels (which can be lowered to a maximum of 4m below the hull), to carry scientific instruments below the layer of microbubbles created by the movement of the ship’s hull through the water. Such instrumentation includes acoustic mappers, a pelagic sediment profiler to produce maps of the sea floor, and 2 Acoustic Doppler current profilers. The hull and the machinery of the ship have been designed to operate as quietly as possible to enhance its scientific capabilities.

Notable works 
In November 2020, the RV Investigator front camera captured a green meteor entering the atmosphere and produces a clear video of this rare phenomenon. The meteor footage was captured in the southern coast of Tasmania.

References

External links 
 

Research vessels of Australia
2013 ships
CSIRO
Worcester Flood Diversion Channel. The Worcester Flood Diversion Channel is a flood control channel located in Auburn and Millbury, Massachusetts. It was built by the United States Army Corps of Engineers because of the Flood Control Act of 1944. Its aim was to protect the city of Worcester, Massachusetts from future floods, as previous flooding had caused much damage to the city. It consists of a series of dams, reservoirs, and channels. During the winter, part of the channel becomes the Auburn Ice Channel, which has become a local destination for ice climbing.

References

External links

Site on the Channel
Pictures of the Ice Channel

Flood control infrastructure in the United States
Buildings and structures in Auburn, Massachusetts
Buildings and structures in Millbury, Massachusetts
Geography of Worcester, Massachusetts
Cosm. Cosm, COSM, or CoSM may refer to:
 Cosm (software), a family of open distributed computing software and protocols
 Cosm (company), virtual reality technology provider and entertainment venue operator
 Chapel of Sacred Mirrors, in Wappinger, New York, USA
 Xively, an internet of things platform previously known as Cosm

See also 

 Microcosm (disambiguation)
 Macrocosm (disambiguation)