omniomni/omni-engineering huggingface dataset:
Archives of Computational Methods in Engineering. Archives of Computational Methods in Engineering is a scholarly journal that provides a forum for spreading results of research and advanced industrial practice in computational engineering with particular emphasis on mechanics and its related areas. It publishes reviews presenting developments in computational engineering.

Subjects covered 
Areas of research published in the journal include modeling; solution techniques and applications of computational methods in areas including liquid and gas dynamics, solid and structural mechanics, biomechanics); variational formulations and numerical algorithms related to implementation of the finite and boundary element methods; finite difference and finite volume methods and other computational methods.

Impact factor 
The journal has a 2020 impact factor of 7.302.

Indexing
Among others, the journal is abstracted and indexed in Google Scholar, Index to Scientific Reviews, Journal Citation Reports/Science Edition, OCLC, Science Citation Index Expanded (SciSearch), SCOPUS, Summon by Serial Solutions, VINITY - Russian Academy of Science]] and Zentralblatt Math.

Editorial board
The editors-in-chief of the journal are Michael Kleiber (Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw) and Eugenio Oñate (School of Civil Engineering and CIMNE - Technical University of Catalonia (UPC), Barcelona, Spain).

References

External links
 
Springer
SpringerLink

Computer science journals
Engineering journals
English-language journals
Academic journals established in 1994
Springer Science+Business Media academic journals
Outdoor wood-fired boiler. The outdoor wood boiler is a variant of the classic wood stove adapted for set-up outdoors while still transferring the heat to interior buildings.

Technology
The outdoor wood boiler is a variant on the indoor wood, oil or gas boiler.  An outdoor wood boiler or outdoor wood stove is a unit about 4-6 feet wide and around 10 feet long. It is made up of four main parts- the firebox, which can be either round or square, the water jacket, the heat exchanger, and the weather proof housing. The fire box ranges from 2 to 5 feet long and can be as tall as 4 feet. The firebox and heat exchanger are surrounded by water or a glycol-water solution, which absorb heat from the burning wood. The heated water is generally circulated through insulated underground lines to a heating load, where the heat can be transferred from the water to various heat emitters.

Standard outdoor wood furnaces
Standard outdoor wood boilers heat the firebox and the smoke goes out the exhaust straight.  If not run hot enough, the exhaust gas will be thick and black, and the resulting ash will not be fully rendered.  While functional, these models take more work and are far less efficient than some newer more efficient models.

Catalytic outdoor wood boilers
Some newer outdoor wood boilers have a catalytic converter installed, to allow for a more efficient burn and treatment of the exhaust before it leaves the unit.  There is a considerable difference in cost between these and standard units. These are far less popular than gasification outdoor wood boilers.

Secondary combustion (gasification) outdoor wood boilers

Gasifier wood boilers use secondary combustion air to burn additional wood gases. The most sophisticated systems use computer controls to direct air at different stages of the burn process at variable volume.

High efficiency outdoor wood boilers use down draft gasification must meet strict EPA Phase 2 Certification.  Outdoor wood gasification boilers can burn between 30% - 50% less fuel than its traditional counterpart. 
 
Outdoor wood boilers are a topic of environmental controversy.  An improperly used or built outdoor wood boiler can produce wood smoke with excessive unburned particulate matter, but when properly burned, studies show that burning wood is still one of the most environmentally friendly heating options.  In 2007, EPA began a voluntary program to encourage manufacturers to reduce particulate levels. In 2015, the U.S. EPA updated its clean air standards for residential wood heaters, this is a mandatory standard for sales in the United States. The revised regulations apply only to new products and will not affect existing wood heaters. At this point, the only boilers that pass these emission controls are gasification models.

References

 
 

Boilers
Heaters
Residential heating
Residential heating appliances
Stoves
Furnaces
Journal of Thermal Spray Technology. The Journal of Thermal Spray Technology is a peer-reviewed scientific journal that is dedicated to thermal science and its application for the improvement of material properties and functionality of coatings. The journal regularly publishes review papers and special issues. it is published by Springer Science+Business Media on behalf of ASM International. The editor-in-chief is Armelle Vardelle (Université de Limoges).

Abstracting and indexing
The journal is abstracted and indexed in:

According to the Journal Citation Reports, the journal has a 2023 impact factor of 3.2.

References

External links

Engineering journals
Springer Science+Business Media academic journals
English-language journals
Academic journals established in 1992
Darunta Dam. The Darunta Dam () is located on the Kabul River near the village of Darunta, approximately  west of Jalalabad, the capital of Nangarhar Province in eastern Afghanistan. It is owned and operated by the country's Ministry of Energy and Water. The dam's hydroelectric power station is being rehabilitated at a cost of $10.5 million.

History

Darunta Dam was built in the early 1960s under the supervision of engineers from the Soviet Union. Its power station contains three vertical Kaplan turbines (six-blade propeller) with a rated output of  each. Originally, the dam supplied  of electrical power but silting and damage to the system during the decades of war has reduced its actual output to .

In 2011, an American company by the name of ANHAM was contracted by USAID to perform the initial rehabilitation of the Darunta power plant. Later, the USAID abandoned the repair work due to Gul Agha Sherzai not paying 10% of the project's $11 million total cost. Sherzai was Nangarhar's governor at the time.

See also

List of dams and reservoirs in Afghanistan

References

External links

Darunta Hydroelectric Power Plant Rehabilitation

Dams in Afghanistan
Buildings and structures in Nangarhar Province
Hydroelectric power stations in Afghanistan
Afghanistan–Soviet Union relations
Dams completed in 1964
Dams on the Kabul River
Soviet foreign aid
1964 establishments in Afghanistan
Heinrich Hencky. Heinrich Hencky (2 November 1885 – 6 July 1951) was a German engineer.
Born in Ansbach, he studied civil engineering in Munich and received his PhD from the Technische Hochschule Darmstadt. In 1913, he joined a railway company in Kharkiv, Ukraine. On the outbreak of World War I he was interned. After the war he taught at Darmstadt, Dresden and at Delft in the Netherlands.

At Delft University of Technology he worked on slip-line theory, plasticity and rheology, for which he is best known.

In 1930 he went to Massachusetts Institute of Technology and in 1931 gave one of the first lectures on rheology. He returned to Delft and then to Germany. In 1936 he went to Russia, teaching at Kharkiv and Moscow.

Hencky died in a climbing accident at the age of 65.

See also
 Maxwell–Huber–Hencky–von Mises theory
 Hencky strain

Works 
 H. Hencky, "Der Spannungszustand in rechteckigen Platten". Mit 12 Abb. im Text und 7 Tafeln. München und Berlin, R. Oldenbourg, 1913
 H. Hencky,  "Über einige statisch bestimmte Falle des Gleichgewichts in plastischen Korpern" - Z. Angew. Math. Mech, 1923 
 H. Hencky, „Über die Form des Elastizitätsgesetzes bei ideal elastischen Stoffen“. Zeitschrift für technische Physik, 9, 215-220 (1928)

References

External links 
 
 Structure, Deformation, and Integrity of Materials: Fundamentals and elasticity
 Deformation Theory of Plasticity

Engineers from Bavaria
Technical University of Munich alumni
1885 births
1951 deaths
Academic staff of Technische Universität Darmstadt
People from Ansbach
Ophoven Airfield. Ophoven Airfield is an abandoned World War II military airfield  which is located west of Opglabbeek (Limburg); approximately  northeast of Brussels.

History
The airfield was built by the United States Army Air Forces IX Engineer Command, 820th Engineer Aviation Battalion in late November/early December 1944.

Known as Advanced Landing Ground "Y-32", the airfield consisted of a single 5000' (1500m) Pierced Steel Planking runway aligned 12/30. In addition, tents were erected for billeting and also for support facilities; an access road was built to the existing road infrastructure; a dump was created for supplies, ammunition, and gasoline drums, along with a drinkable water; and a minimal electrical grid for communications and station lighting was installed.

Opened on 10 December, the airfield was first used as a resupply and casualty evacuation airfield, with C-47 Skytrain transports flying in and out of the airfield frequently.  Combat units did not arrive at the airfield until late January 1945, when the  370th Fighter Group, based P-47 Thunderbolt fighters at Ophoven on 27 January.  In February, the 405th Fighter Group also based P-47s at the airfield.   The fighter planes flew support missions, patrolling roads in front of the beachhead; strafing German military vehicles and dropping bombs on gun emplacements, anti-aircraft artillery and concentrations of German troops when spotted.

Both groups moved out at the end of April 1945, the airfield closed about a month later at the end of May.  Today, the airfield is abandoned, being a mixture of agricultural fields just to the west of Ophoven.

References

External links

Airfields of the United States Army Air Forces in Belgium
Defunct airports in Belgium
Airports established in 1944
Airports in Limburg (Belgium)
Oxidative-induction time. Oxidation induction time or OIT is a standardized test performed in a DSC which measures the level of thermal stabilization of the material tested. The time between melting and the onset of decomposition in isothermal conditions is measured. The atmosphere is nitrogen up to melting and then oxygen. The typical temperature is 190-220 °C.

Oxidation-induction time can be known with the use of Differential Scanning Calorimetry measurements, which is done with the sample body and a substance that will be heated in a constant rate in an atmosphere of inert gas. Once the specified temperature is attained, its atmosphere will be replaced by an air atmosphere of the said rate or an oxygen atmosphere. The specimen will be then held at a constant temperature up to the indication of oxidative reaction by exothermal deviation of DSC heat flow curve. Time interval in the middle of the start of the air flow and the beginning of the oxidation reaction is called the isothermal OIT. The said method was also mentioned and discussed on several various technical standards like DIN EN ISO 11357-6.

This test is routine when assessing the quality of organic materials or polymers, such as polyethylene pipes.

References 

 ISO 11357-6:2018 Plastics — Differential scanning calorimetry (DSC) — Part 6: Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT)
 Norm ASTM D 3895
 Nexor pipes

Polymer physics
DOK-ING. DOK-ING d.o.o. is a Croatian company which manufactures unmanned multi-purpose vehicles, electric vehicles and robotic systems, established in 1992. Its products make up 80% of the worlds robotized mine clearing machines.

History
The company was formed in 1992 by Vjekoslav Majetić. It primarily develops and produces robotic and autonomous systems intended for use in various situations. Their vehicles are used for demining, firefighting, underground mining and counter-terrorism purposes.

The electric motors for their vehicles are largely supplied by the Pula-based company Tema.

During 2023, in the wake of the Russian invasion of Ukraine, it was reported that negotiations were underway with the Ukrainian MoD to localise the production of its MV-4 mine clearing vehicle in Ukraine. A number of these vehicles were previously purchased or donated to Ukraine. In 2024, it opened its representative office in Kyiv. 

During 2024, it entered a joint-venture with Rheinmetall, with purpose of developing unmanned vehicles intended for mine scattering, tank support, air defence and reconnaissance.

Dok-Ing Automotiv
The automotive division was formed upon the introduction of the electric car Dok-Ing XD in 2010. The car remained in prototype phase and never formally entered serial production, although one unit was sold to the Faculty of Electrical Engineering in Zagreb.

In 2015, it produced two electric buses for the city of Koprivnica, as a part of the European project Civitas Dyn@mo. In the following year, it unveiled a multifunctional communal vehicle TOM TOM, which received awards from various international fairs. During the same year, it launched a serial production of electric scooters under the name "Core", with 800 of them already exported to Spain, Mexico, France, Italy and Malta in 2017. The batteries are produced by Dok-Ing. The company also launched a series of electric bikes called "Leo".

In 2017, it announced a new model of electric car, under the working name of YD, expected to have a range of 300–400 km.

In 2019, the division was sold and excluded from DOK-ING during restructuring of the overall company. DOK-ING Automotiv began operating under a new name afterwards.

Products

Current

Mine Clearance Vehicles

MV-4
MV-10

Fire Fighting Vehicles

MVF-5

Underground Mining Vehicles
MVD

Discontinued

Fire Fighting Vehicles
JELKA-4
JELKA-10

Mine Clearance Vehicles
MV-2
MV-3
MV-20

Robots
EOD

Future
FP7
XD4 (electric car).
XD2 (electric car)

International Users

References

External links
 Official website
 xd Electric city car site

Bus manufacturers of Croatia
Battery electric vehicle manufacturers
Robotics companies
Manufacturing companies based in Zagreb
Vehicle manufacturing companies established in 1992
Croatian brands
Truck manufacturers of Croatia
Electric vehicle manufacturers of Croatia
Tolman Skiff. The Tolman Skiff is a boat design of Dory heritage created by Renn Tolman of Homer, Alaska.  Tolman authored two books, initially, "A Skiff For All Seasons", in 1992 and a revised version  "Tolman Alaskan Skiffs", in 2003. The books described advantages of the design and construction method Stitch and glue using plywood, fiberglass cloth, and epoxy.  Included in the books were drawings and designs for simple skiffs suitable for backyard, do-it-yourself construction.

Tolman Skiffs were designed as a basic platform suitable for the builder to modify for specific purposes such as camping, cruising, fishing or pleasure.

The Tolman skiff utilizes a design that planes readily with minimal power requirements, and has a large reserve capacity due to the hull shape, as further depression of the hull into the water increases buoyancy.

Many of these boats have been built and used around the world, garnering a reputation for being economical, seaworthy, and durable. 

In addition to the designs described in the book, precision cut kits and detailed, full sized plans are commercially available. Tolman skiffs are light compared to fiberglass or aluminum boats of similar size and strength. Renn Tolman developed three different design versions of the Tolman Skiff, ranging in size from 18 to 24 feet.  

Designs include:
 Standard:  Semi-Vee design constructed from marine plywood and epoxy/fiberglass cloth.
 Widebody:  Similar to the standard, but longer and wider, with 3" wide chine flats on each side of the bottom.
 Jumbo:  Longer and deeper than the Widebody, with 4" chine flats on each side of the bottom.

Many builders modify the basic design of the boat to suit their needs. Although not documented in the original design, some builders are known to have stretched both the Widebody and Jumbo to at least 27 feet. Many builders have voyaged far in their Tolman Skiffs.  Friedhelm Würfel of Hamburg, Germany documented his 2009 tour of the Gulf of Bothnia in his book. 

Renn Tolman passed on July 5, 2014.

References

External links
 Official Website
 Professional Boatbuilder
 FishyFish Tolman Builder Site

Boats
Kelz Airfield. Kelz Airfield is a former World War II military airfield in Germany.  It was located about 2 miles north of Vettweiß (Nordrhein-Westfalen); approximately 315 miles southwest of Berlin.

The airfield was built by the United States Army Air Forces during March 1945 as a temporary Advanced Landing Ground as part of the Western Allied invasion of Germany.  It was closed in July 1945 and dismantled.

History
The airfield was built by the IX Engineer Command, 826th Engineer Aviation Battalion on a flat, agricultural area near the village of Kelz in the North Rhine-Westphalia.  The airfield was constructed using Pierced Steel Planking, 5000' long aligned east–west (09/27).  In addition, tents were erected for billeting and also for support facilities; an access road was built to the existing road infrastructure; a dump was created for supplies, ammunition, and gasoline drums, along with a drinkable water; and a minimal electrical grid for communications and station lighting was installed.

Opened on 24 March 1945, Ninth Air Force moved the P-47 Thunderbolts of the 48th Fighter Group to the field on 26 March, followed shortly by the P-47s of the 404th Fighter Group on 30 March.  The Thunderbolts flew support missions, patrolling roads; strafing German military vehicles and dropping bombs on gun emplacements, anti-aircraft artillery and concentrations of German troops when spotted.

Both combat groups moved out at the end of April 1945, the airfield being used afterward for resupply and casualty evacuation.   The airfield remained open until July when it was closed and dismantled.   Today, the location of the former airfield a mixture of agricultural fields with little or no evidence of its existence.

See also

 Advanced Landing Ground

References

External links

Airfields of the United States Army Air Forces in Germany
Airports established in 1945
Airports in North Rhine-Westphalia
Paul Haeberli. Paul E. Haeberli is an American computer graphics programmer and researcher.

Biography
Paul Haeberli studied for a Bachelor of Science degree in electrical engineering at the University of Wisconsin–Madison, United States.

Haeberli was recruited by James H. Clark to join Silicon Graphics during the company's founding. Haeberli's early work included code, developed with David J. Brown and Mark Grossman, for SGI's first product – the IRIS 1000. Between 1983 and 1999, Haeberli continued at Silicon Graphics in Silicon Valley, California. He worked on the early MEX window system for Silicon Graphics workstations. He was also involved in non-photorealistic rendering (NPR) techniques in computer graphics, producing software to implement this approach. He devised the Silicon Graphics Image (SGI) format for graphics files. Later, he became an initial member of the research team at Silicon Graphics.

After Silicon Graphics, Haeberli joined Shutterfly, where he developed much of the online technology and image-processing foundations for the system that Shutterfly later employed in production.

Subsequently, he founded Lamina Design, which allows freeform structures to be constructed from sheet material using computer-based techniques. The company is based in Madison, Wisconsin.

References

External links
 
 

Year of birth missing (living people)
Living people
University of Wisconsin–Madison College of Engineering alumni
American computer programmers
Computer graphics professionals
Computer graphics researchers
Silicon Graphics people
American people of Swiss descent
National United University. The National United University (NUU; ; Pha̍k-fa-sṳ: Kwet-li̍p Lîen-ha̍p Thài-ho̍k) is a public university in Miaoli City, Miaoli County, Taiwan.

NUU offers undergraduate and graduate programs in a wide range of fields, including business, engineering, humanities, law, science, and social sciences. 

NUU has several research centers and institutes, such as the Institute of Law and Intellectual Property, the Institute of International Management, and the Research Center for Sustainable Energy and Environment.

History 
The school (then a two-year private junior college) started its first semester in September 1972 as Lien Ho Industrial and Technological Junior College. The college was the only higher education institution in the Miaoli region at the time. On 1 August 1973, it was renamed to Lien Ho Junior College of Technology.

In 1992 the college was renamed Lien Ho College of Technology and Commerce. On July 1, 1995, the Board of Directors donated the school to the Ministry of Education, and the college became a public institution named the National Lien Ho College of Technology and Commerce. In 1999, the College was reorganized into an institute of technology as National Lien Ho Institute of Technology. On August 1, 2003, the institute was upgraded to a university status as National United University.

Academics 

There are five academic programs at National United University:

 College of Engineering Science
 College of Electrical Engineering and Computer Science
 College of Management
 College of Humanities and Social Science
 College of Hakka Studies

Transportation
The university is accessible within walking distance North of Miaoli Station or Nanshi Station of the Taiwan Railways.

See also
 List of universities in Taiwan

References

External links

National United University  English website 
National United University Chinese website 

1972 establishments in Taiwan
Universities and colleges established in 1972
Miaoli City
Universities and colleges in Miaoli County
Universities and colleges in Taiwan
Technical universities and colleges in Taiwan