omniomni/omni-engineering huggingface dataset:
Hunan Institute of Engineering. The Hunan Institute of Engineering () is a provincial public college in Xiangtan, Hunan, China. Despite its English name, the school has not been granted university status. The college is under the Hunan Provincial Department of Education.

The college was founded in 1951 and is organized into 16 schools and departments.

History 
Approved by the Ministry of Education in June 2000, the official name of HNIE came into being as a result of the merger of Xiangtan Institute of Machinery () and Electricity Technology and Hunan Textile College (). Xiangtan Institute of Machinery and Electricity Technology, founded in 1951, affiliated with the former National Ministry of Machinery Industry, was appraised to be the national key construction modeling school of higher technical colleges of engineering. Hunan Textile College, founded in 1978, was attached to the Hunan Provincial Bureau of Textile Industry. HNIE is under the joint support of the central government and Hunan provincial government, the latter being mainly in charge of its administration.

Rankings 
The Best Chinese Universities Ranking, also known as the "Shanghai Ranking", placed the university 414 in China. The university ranked # 2568 in the world out of nearly 30,000 universities worldwide by the University Rankings by Academic Performance 2023–2024.

Notable alumni 
 Wen Huazhi ()

References

Universities and colleges in Hunan
Manali Petrochemical. Manali Petrochemical Ltd. (MPL) is a petrochemical company based in Chennai, India. Established in 1986, it markets propylene glycol and polyols

Manali Petrochemical annually produces 27000 metric tonnes of propylene oxide, 14,000 metric tonnes of propylene glycol and 15,000 metric tonnes of polyether polyol and system polyol.

Manali Petrochemical Ltd Plant-I (originally built by SPIC) set up with the technology of Atochem for manufacture of PO and PG and that of Arco for manufacture of Polyuol acquired through Technip, France. Manali Petrochemical Ltd Plant-II (originally joint venture of UB and TIDCO) was merged with MPL later utilizes the technology of Enichem of Italy for the PO and PG and Press Industrial for manufacture of Polyol. MPL markets its Polyols with isocyanates sourced indigenously as well as imported from Japan and China and the pre-polymers produced at MPL in meeting the demand of polyurethane industry in India.

References

External links
 Official website

Companies based in Chennai
Petrochemical companies of India
1986 establishments in Tamil Nadu
Chemical companies established in 1986
Indian companies established in 1986
Companies listed on the Bombay Stock Exchange
Companies listed on the National Stock Exchange of India
Reversing valve. A reversing valve is a type of valve and is a component in a heat pump, that changes the direction of refrigerant flow. By reversing the flow of refrigerant, the heat pump refrigeration cycle is changed from cooling to heating or vice versa. This allows a residence or facility to be heated and cooled by a single piece of equipment, by the same means, and with the same hardware.

Operation
The reversing valve has two states, relaxed (unactivated) versus energized. The energized state is typically achieved by applying 24 volts AC, which is commonly used in HVAC equipment. The heat pump can be designed by the manufacturer to produce either cooling or heating with the reversing valve in the relaxed state. When the reversing valve is energized, it will produce the opposite transfer of heat from its relaxed state. For example, a reversing valve installed in such a way as to produce cooling when relaxed will produce heating when energized. Likewise, a reversing valve installed to produce heating when relaxed will produce cooling when energized.

Control
Depending on the construction and use of the heat pump, the reversing valve may be driven by the heat pump through the use of a defrost control board, or it may be driven directly by a thermostat (typically from the "O" terminal of the thermostat).

Replacement
Reversing valves are built into the heat pump by the manufacturer, and must be replaced by an HVAC technician if they fail. Since the valve is an integral part of the sealed refrigerant circuit, proper procedures for recovering and then later refilling the refrigerant must be followed, to prevent its loss into the atmosphere.

See also

 Thermostat
 Thermal expansion valve
 Freeze stat

References

Heat pumps
Valves
Metallo-Chimique. Metallo-Chimique International N.V., based in Beerse, Belgium, also described simply as Metallo, is a privately held metals and mining company. The company was incorporated in 1919.  Metallo now specializes in the recycling and refining of metalliferous materials (e.g. copper, tin, lead, zinc, as well as cable, waste from the electronics sector, car catalysts, and the like), to produce pure tin and lead, electrolytic copper, copper anodes and solder from a wide variety of scrap and residues.

The company produces approximately 10,000 tons of cu-anodes, 1,500 tons of lead-ingots and 800 tons of tin-ingots per month. It is the leading producer of pure tin in Europe. All Metallo-Chimique final products are made out of scrap and by-products. The company buys and processes a wide range of different scrap grades and qualities including complex materials such as ashes, slags, oxides, and sludges. Due to this what it describes as "this unique situation", Metallo-Chimique sources its raw materials from all over the world.

References

Metal companies of Belgium
Companies based in Antwerp Province
Beerse
Midland Railway 2501 Class. The Midland Railway 2501 Class was a class of 2-6-0 steam locomotives built in the United States in 1899.  The Midland's own Derby Works had reached their capacity, and were unable to produce additional engines at the time, and many British locomotive builders were recovering from a labor dispute over working hours, thus the railway placed an order with the Baldwin Locomotive Works for 30 engines. These engines were manufactured in four batches and shipped disassembled as kits of parts, before being re-assembled at Derby.  Baldwin constructed similar 2-6-0's for the Great Central Railway (GCR Class 15) and Great Northern Railway (GNR Class H1) around the same time.

Appearance
The engines were designed with little or no consideration to British practice, having several distinct characteristics of American practice, such as the use of bar frames, sand carried in a second dome on top of the boiler, and eight-wheel bogie tenders. A further 10 engines were ordered from the Schenectady Locomotive Works, which became the 2511 Class.

Numbering
Originally Nos 2501–2510, 2521–2540, in the Midland's 1907 renumbering scheme, the Baldwins became Nos 2200–2229, in the same order.

Withdrawal
Being non-standard, they had a short life and were all withdrawn between November 1908 and March 1914. All were scrapped.

See also
 Locomotives of the Midland Railway

References 

 
 
 
 Hunt, Dave. American Locomotives of the Midland Railway (No 1 Supplement to Midland Record) 

2501 Class
2-6-0 locomotives
Baldwin locomotives
Railway locomotives introduced in 1899
Midland Railway 2511 Class. The Midland Railway 2511 Class was a class of 2-6-0 steam locomotives built by the Schenectady Locomotive Works in the United States, as a supplemental order to the 2501 Class built by Baldwin that same year.  As with that class, the Midland had turned to American locomotive builders, as their own Derby Works had reached capacity, and was unable to produce additional engines at the time, and many British locomotive builders were recovering from an 1897-1898 labor dispute over working hours.

History
The engines were designed and built with more consideration to British practice than the 2501 class had been.  While the engines retained some distinct features of American practice, such as the use of bar frames, they had cleaner lines, with sandboxes placed below the boilers, as well as three-axle rigid tenders.

Numbers
Originally numbered 2511–2520, in the Midland's 1907 renumbering scheme the Schenectadies became No. 2230–2239, in the same order.

Withdrawal
Being non-standard, they had a short life and were all withdrawn between March 1912 and August 1915 and later scrapped.

References 

 
 
 
 Hunt, Dave. American Locomotives of the Midland Railway (No 1 Supplement to Midland Record) 

2511 Class
2-6-0 locomotives
Schenectady Locomotive Works locomotives
Railway locomotives introduced in 1899
Scrapped locomotives
Ammonium iron(III) sulfate. Ammonium iron(III) sulfate, NH4Fe(SO4)2·12 H2O, or NH4[Fe(H2O)6](SO4)2·6 H2O, also known as ferric ammonium sulfate (FAS) or iron alum, is a double salt in the class of alums, which consists of compounds with the general formula AB(SO4)2 · 12 H2O. It has the appearance of weakly violet, octahedrical crystals. There has been some discussion regarding the origin of the crystals' color, with some ascribing it to impurities in the compound, and others claiming it to be a property of the crystal itself.

FAS is paramagnetic, acidic and toxic towards microorganisms. It is a weak oxidizing agent, capable of being reduced to Mohr's salt, ferrous ammonium sulfate.

Preparation
FAS can be prepared by crystallization from a solution of ferric sulfate and ammonium sulfate. Iron(II) in ferrous sulfate is oxidized to ferric sulfate by addition of sulfuric and nitric acid. Upon addition of ammonium sulfate to the solution and damping in of the solution, ferric ammonium sulfate crystals precipitate.  Equations for these conversions ignore the degree of hydration of the material.

Oxidation: 

Synthesis:

Uses
Areas of use for FAS include waste water treatment, tanning, production of dyestuffs, and as an etching agent in the production of electronic components. It has been used in a wide area of applications, including adiabatic refrigeration equipment, biochemical analysis, and organic synthesis.

Gallery

References

Ammonium compounds
Iron(III) compounds
Sulfates
Double salts
RMIT School of Aerospace, Mechanical and Manufacturing Engineering. The RMIT School of Aerospace, Mechanical and Manufacturing Engineering (also known as SAMME) was an Australian tertiary education school within the College of Science Engineering of RMIT University.

The School consisted of three major disciplines, Aerospace and Aviation Engineering, Manufacturing and Materials Engineering and Mechanical and Automotive Engineering.

Location
The Department was located in the adjoining Buildings 56 & 57 (Level 9) at the City campus and also on the Bundoora East campus.

Industry Partners
Partners of the school included: Airbus, ADF, BMW, Boeing, Ford, GKN, Holden, RAeS, Subaru and Volkswagen Group.

Sir Lawrence Wackett Aerospace Centre
The Sir Lawrence Wackett Aerospace Centre is a research centre created in conjunction with the School of Mathematics. It is located in Port Melbourne adjoining other Aerospace companies. The centre aims to "Create new intellectual property in partnership with industry, through research and design that addresses real world issues, for commercial use and development.".
In 2004 a Memorandum of Understanding was signed between the centre and the Indian National Aerospace Laboratory. The MoU involved the centre undertaking design work for Indian aircraft.
In 2007 it was successful in winning a $5 Billion tender from the Australian Department of Defence over 20 years to upgrade and replace the helicopter fleet.

National Aerospace Resource Centre
The National Aerospace Resource Centre is a research collection partnership between the Royal Aeronautical Society's Australian Division and the RMIT School of Aerospace, Mechanical and Manufacturing Engineering.

It consists of approximately 100,000 volumes, including: technical reports (from NASA, NACA, AMRL and DSTO), conference proceedings, books, videos, aircraft manuals and journals, and is housed at RMIT's Bundoora West Library.

References

School of Aerospace, Mechanical and Manufacturing Engineering, RMIT
Mechanical engineering schools
Cement bond log. A cement bond log documents the evaluation of the integrity of cement work performed on an oil well. In the process of drilling and completing a well, cement is injected through the wellbore and rises up the annulus between the steel casing and the formation.

A sonic tool is typically run on wireline by a service company that detects the bond of the cement to the casing and formation via a principle based on resonance. Casing that is not bound has a higher resonant vibration than that which is bound, causing the imparted energy from the sonic signal to be transferred to the formation. In this sense, the amplitude of the waveform received is the basic measurement that is evaluated.

The data is collected by the tool and recorded on a log which is used by the oil producing company as an indicator of zonal isolation in the well. There are production reasons and legal reasons (governed by a petroleum regulatory body in each individual state) that dictate the well must have specific areas of isolation.

References 

Well logging
Petroleum engineering
RV Wecoma. RV Wecoma is a research vessel owned by the National Science Foundation and operated by the College of Oceanic & Atmospheric Sciences at Oregon State University (OSU) as a member of the University-National Oceanographic Laboratory System (UNOLS) fleet.  It is based in Newport in the U.S. state of Oregon near OSU's Hatfield Marine Science Center. Launched in 1975, it has a maximum displacement of .

The  ship is equipped with  of laboratory space to support up to 18 scientists at sea.  It has a variety of equipment permanently installed, and optional additional equipment available on request, to measure and analyze navigational data; surface atmospheric conditions; sea surface temperature, salinity, fluorescence; bottom depth; dissolved oxygen titration; solar radiation; GPS time; bioacoustics; and geological sampling.  The range of depths of submerged equipment varies from .  The vessel can support diving operations, radioactive isotope materials, and explosive materials.

Wecoma made her last operational cruise November 2011 and was scheduled to be retired with the interim replacement ship being the former Woods Hole Oceanographic Institution operated R/V Oceanus.

References

External links
 Wecoma Homepage

 

Research vessels of the United States
University-National Oceanographic Laboratory System research vessels
Oregon State University
Newport, Oregon
1976 ships
Zineb. Zineb is the chemical compound with the formula {Zn[S2CN(H)CH2CH2N(H)CS2]}n. Structurally, it is classified as a coordination polymer and a dithiocarbamate complex. This pale yellow solid is used as fungicide.

Production and applications
It is produced by treating ethylene bis(dithiocarbamate) sodium salt, "nabam", with zinc sulfate. This procedure can be carried out by mixing nabam and zinc sulfate in a spray tank.
Its uses include control of downy mildews, rusts, and redfire disease. In the US it was once registered as a "General Use Pesticide", however all registrations were voluntarily cancelled following an EPA special review. It continues to be used in many other countries.

Structure
Zineb is a polymeric complex of zinc with a dithiocarbamate. The polymer is composed of Zn(dithiocarbamate)2 subunits linked by an ethylene (-CH2CH2-) backbone. A reference compound is [Zn(S2CNEt2)2]2, which features a pair of tetrahedral Zn centers bridged by one sulfur center.

See also
Metam sodium - A related dithiocarbamate salt which is also used as a fungicide.
Maneb - ethylene bis(dithiocarbamate) with manganese instead of zinc.
Mancozeb - A common fungicide containing Zineb and Maneb.

References

External links

Fungicides
Endocrine disruptors
Zinc compounds
Dithiocarbamates
Polymers
Logic built-in self-test. Logic built-in self-test (or LBIST) is a form of built-in self-test (BIST) in which hardware and/or software is built into integrated circuits allowing them to test their own operation, as opposed to reliance on external automated test equipment.

Advantages
The main advantage of LBIST is the ability to test internal circuits having no direct connections to external pins, and thus unreachable by external automated test equipment.  Another advantage is the ability to trigger the LBIST of an integrated circuit while running a built-in self test or power-on self test of the finished product.

Disadvantages
LBIST that requires additional circuitry (or read-only memory) increases the cost of the integrated circuit. LBIST that only requires temporary changes to programmable logic or rewritable memory avoids this extra cost, but requires more time to first program in the BIST and then to remove it and program in the final configuration. Another disadvantage of LBIST is the possibility that the on-chip testing hardware itself can fail; external automated test equipment tests the integrated circuit with known-good test circuitry.

Related technologies
Other, related technologies are MBIST (a BIST optimized for testing internal memory) and ABIST (either a BIST optimized for testing arrays or a BIST that is optimized for testing analog circuitry).  The two uses may be distinguished by considering whether the integrated circuit being tested has an internal array or analog functions.

See also
 Built-in self-test
 Built-in test equipment
 Design for test
 Power-on self-test

External links
 Built-in Self Test (BIST)
 
 Hardware Diagnostic Self Tests
 BIST for Analog Weenies

Integrated circuits
Mazandaran University of Science and Technology. Mazandaran University of Science and Technology (MUST) is a private university in Babol, Iran.

Mazandaran University of Science & Technology is a research university located in the city of Babol in the province of Mazandaran (Northern Iran) 15 km away from Caspian Sea. MUST was established in 1992 as the first private university in the country under the accreditation of the Ministry of Science, Research and Technology (Iran) by members of its founder committee.

It offers degrees in Mechanical Engineering, Industrial Engineering, Computer Engineering, Information Technology, Electrical Engineering, Teaching English as a Foreign Language, Civil Engineering, Biomedical Engineering, Architecture, and other subjects, as well as MBA.

References
https://www.msrt.ir/en/page/1194/private-universities Top private universities

Schools and Departments
Industrial & Systems Engineering Department
Computer Engineering and Information Technology Department
Civil Engineering Department
Business Department
Mechanical Engineering Department
Chemical Engineering Department
Science Department
Foreign Languages Department

Industrial and Civil Engineering at MUST

Mazandaran University of Science & Technology is known for offering both Industrial and Civil Engineering programs including bachelor's degree, Master's degree and PhD degree in the nation. MUST also held 13th International Conference on Industrial Engineering (IIEC 2017) on February 22–23, 2017 in Babolsar, Iran.

Cooperation
Master's degree and PhD courses are taught in English. The university has established cooperation with the Indian Institutes of Technology (IIT) of India in offering MBAs and PhDs in industrial engineering.

External links
MUST Official Website

Education in Mazandaran province
Universities in Iran
Educational institutions established in 1992
1992 establishments in Iran
Buildings and structures in Mazandaran province
Industrial group. Industrial group may refer to:

 Industry, a segment of the economy
 Industrial Revolution, the development of industry in the 19th century
 Industrial society, one that has undergone industrialization
 Industrial engineering group (disambiguation)
 Industrial Groups which were formed by the Australian Labor Party in the late 1940s, to combat Communist Party influence in trade 
 an industrial concern, see Concern (business)
 an industrial group that is an organization of companies in different industries with common ownership interests, which include firms necessary to manufacture and sell products—a network of manufacturers, suppliers, marketing organizations, distributors, retailers, and creditors
Molybdenum hexafluoride. Molybdenum hexafluoride, also molybdenum(VI) fluoride, is the inorganic compound with the formula MoF6. It is the highest fluoride of molybdenum. It is a colourless solid and melts just below room temperature and boils in 34 °C. It is one of the seventeen known binary hexafluorides.

Synthesis 
Molybdenum hexafluoride is made by direct reaction of molybdenum metal in an excess of elemental fluorine:
 + 3  → 

The compound hydrolyzes easily, and typical impurities are MoO2F2 and MoOF4.

Description 
At −140 °C, it crystallizes in the orthorhombic space group Pnma.  Lattice parameters are a = 9.394 Å, b = 8.543 Å, and c = 4.959 Å.  There are four formula units (in this case, discrete molecules) per unit cell, giving a density of 3.50 g·cm−3. The fluorine atoms are arranged in the hexagonal close packing.

In liquid and gas phase, MoF6 adopt octahedral molecular geometry with point group Oh. The Mo–F bond length is 1.817 Å.

Applications 
Molybdenum hexafluoride has few uses.  In the nuclear industry, MoF6 occurs as an impurity in uranium hexafluoride since molybdenum is a fission product of uranium.  

The semiconductor industry constructs various integrated circuits through chemical vapor deposition of molybdenum hexafluoride.  In some cases, the deposited molybdenum is an impurity in the intended tungsten hexafluoride.  MoF6 can be removed by reduction of a WF6-MoF6 mixture with any of a number of elements including hydrogen iodide at moderately elevated temperature.

References 

Molybdenum(VI) compounds
Hexafluorides
Molybdenum halides
Octahedral compounds
Albert Charles Bartlett. Albert Charles Bartlett (5 August 1892 – ) was a British electrical engineer who worked for the General Electric Company in Wembley.  He had some correspondence with Wilhelm Cauer on the subject of filter designs.

He published a treatment of geometrically symmetrical 2-port networks in 1927 and is responsible for Bartlett's bisection theorem which shows that any symmetrical network can be transformed into a symmetrical lattice network.

He also patented the idea of using the method of an active amplifier with "negative resistance" to cancel the inductance of a telephone line.

Publications

Journal articles

Bartlett, AC, "An extension of a property of artificial lines", Phil. Mag., vol 4, p902, November 1927.
Bartlett, AC, "A standard of small capacity differences", J. Sci. Instrum., vol 8, No 8 (August 1931), pp260–262.
Bartlett, AC, "Note on the theory of screened impedances in A.C. bridges with the Wagner earth",J. Sci. Instrum., vol 6, No 9 (September 1929), pp277–280.
Bartlett, AC, "A small peak voltmeter and an application", J. Sci. Instrum., vol 8, No 9 (June 1924), pp281–284.

Patents

Bartlett, AC, Line balance for loaded telephone circuits, GB1767199, filed 30 Mar 1925, issued 24 Jun 1930.
Bartlett, AC, Improvements in Electric Discharge Tubes, GB239736, filed 30 Oct 1924, issued 17 Sept 1925.
Bartlett, AC, An improved method for reducing the self-inductance of electric circuits, GB278036, filed 25 May 1926, issued 26 Sep 1927.

Books
Bartlett, AC, The theory of electrical artificial lines and filters, 1930, Chapman & Hall (London), LCCN 30030668.

References

British electrical engineers
British electronics engineers
1892 births
Year of death missing
Place of birth missing
Place of death missing