omniomni/omni-engineering huggingface dataset:
Research Centre for Deep Drilling. Research Centre for Deep Drilling is high-tech laboratory focused on research and development of new deep drilling concept based on electrical plasma. It was established by GA Drilling, former Geothermal Anywhere company in the premises of Slovak Academy of Sciences in Bratislava, Slovakia. The Research centre was officially opened on 10 October 2010 as a result of long-term activities whose aim is to support the geothermal technology research and development in Slovakia. In October 2012, GA Drilling officially moved from Research Center for Deep Drilling to newly founded GA Drilling Technology Center.

High-energetic electrical plasma

High-energetic electrical plasma is a promising technology which is currently being developed in deep drilling applications. It has lower energy efficiency than some of the other technologies, but has several other advantages. The most important are utilization in water environment or producing boreholes with wide range of diameters. The research team from Slovakia is developing drilling concept based on electrical plasma principle suitable for several drilling applications. The core of the research is held in Research Centre for Deep Drilling.

See also
Plasma (physics)
Enhanced geothermal system
Plasma deep drilling technology
Geothermal Anywhere
New drilling technologies
Plasma deep drilling technology

External links
Official press release from the opening of Research Centre for Deep Drilling
Post about the official opening at Geothermania blog

Drilling technology
Geothermal drilling
Mining organizations
Bamboo processing machine. Bamboo processing machines are used to prepare bamboo for use in manufacture of handicrafts, furniture and other products.

Bamboo processing tasks 
Bamboo processing machines are usually built to perform a single task such as:
 Splitting - separating the material in the direction of the fibers at right angles to the surface (radially)
 Slicing - separating the material in the direction of the fibers parallel to the surface (tangentially)
 Knot removing - cutting or grinding down the  inter-segmental nodes.
 Planing - smoothing the top, bottom and/or side surfaces of a split length
 Cross cutting - cutting a length of stem into shorter sections
 Incense stick making
 Stick sizing 
 Polishing
 Curving

Multi-task processing machines
A new machine developed in Nagaland, India performs four tasks on a single platform – planing, curving, polishing and knot removing. It was recognized by the National Innovation Foundation – India in their fifth biennial competition.

References 

Processing machine
Industrial machinery
Poberezny P-5 Pober Sport. The P-5 Pober Sport is an early low-wing homebuilt aircraft designed by Experimental Aircraft Association founder Paul Poberezny. The one example built was flown across the country to every EAA chapter at the time.

Design and development
The first drawings of the Pober Sport were published in the November 1956 issue of the experimenter.

The Pober Sport is a strut-braced, low-wing, taildragger aircraft.

The fuselage is a modification of the Ace Baby Ace. The landing gear is from a J-3 Cub. The fabric covered aluminium wings are from a high-wing Luscombe Aircraft design. The elevators are controlled with push-pull tubes.

Operational history
The Pober Sport was introduced at the 1959 EAA convention. During the sourcing of the parts, Poberezny used a C-47 to pick up the Luscome wings, and started work on the ailerons while in-flight. Anders "Andy" Ljungberg later toured the United States on a 72 stop tour with the aircraft to visit every EAA chapter in the country. The tour was broadcast and monitored by amateur radio operators along the route.  The aircraft was donated to the EAA AirVenture Museum in Oshkosh, Wisconsin in 1975.

Specifications (Poberezney P-5 Pober Sport)

See also

References

Homebuilt aircraft
P-5
Single-engined tractor aircraft
1950s United States sport aircraft
Low-wing aircraft
Aircraft first flown in 1959
Schreder Airmate HP-10. The Schreder Airmate HP-10 is an American, high wing, single seat, FAI Standard Class glider that was designed by Richard Schreder. Airmate was the name of Schreder's design company.

Design and development
The HP-10 (HP stands for high performance) was designed by Schreder for the 1961 US Nationals.

The aircraft is built from aluminium and has a V-tail. The constant-chord wing is made up from  eight aluminum honeycomb-sandwich structural panels and has large flaps, using up , or 70%, of the  wingspan. The wing uses a NACA 65 (3)-618 airfoil, the same profile as the HP-8. Some HP-10s were finished with Helisoar-produced fiberglass Hoerner wingtips. The landing gear is a fixed monowheel.

The production rights to the HP-10 were purchased by Helisoar, a company owned by Steve duPont. The company produced a number of kits for the aircraft before production was ended. At least nine kits were completed, most in the Experimental - amateur-built category. Some were registered with the Federal Aviation Administration as Helisoar HP-10s. When Helisoar was liquidated duPont donated all the tooling, parts, drawings and engineering reports to the EAA AirVenture Museum as the Soaring Society of America had no storage space at that time.

Operational history
Schreder and the HP-10 won the Stroukoff Trophy in 1961 for a 57 km/h (35.5 mph) 229 km (142 miles) goal and return flight.

With its high wing loading of 6.75 lb/sq ft (33.0 kg/m2) and small wing area of 114 sq ft (10.6 m2), the HP-10 developed a reputation of being difficult to keep aloft in weak soaring conditions.

In April 2011 there were three HP-10s registered with the FAA, including one in the National Soaring Museum and one in the EAA AirVenture Museum.

Aircraft on display
EAA AirVenture Museum - 1
National Soaring Museum - 1, listed as in storage

Specifications (HP-10)

See also

References

Schreder aircraft
1960s United States sailplanes
Aircraft first flown in 1961
V-tail aircraft
Allyn Vine. Allyn C. Vine (1914–1994) was a physicist and oceanographer who was a leader in developing crewed submersible vessels to explore the deep sea.

Projects
 Major contributor to redesigning the bathythermograph during World War II. His version could be used on submarines to detect the ocean thermocline.
 Inspiration for DSV Alvin

See also
 Maurice Ewing

References

American oceanographers
American physicists
Woods Hole Oceanographic Institution
Koun Aircraft Dirigible Helicopter. The Kouns-Craft, described and registered as a Koun Aircraft Dirigible Helicopter was a patented experimental vehicle designed by Young Ho Koun, the first Chinese American to develop an aircraft in the United States.

Design and development
Koun, a cook by profession, developed the Aircraft Dirigible Helicopter to demonstrate an aircraft with vertical takeoff and landing capability. The vehicle was constructed over the course of five years.

The vehicle resembled a conventional light aircraft with the exception of two large airfoil-shaped cuffs over the wings intended to hold compressed helium. The designer felt that using compressed helium would provide additional buoyancy, requiring less volume than an unpressurized dirigible. Contemporary reports stated that the helium would only provide ten pounds of lift. The exposed forward mounted engine was designed to tilt for forward or vertical thrust. A set of outrigger wheels on the wingtips were set for stability on the ground.

Operational history
The prototype was assembled at Roosevelt Field, New York in 1939. The CAA gave the aircraft a registration number, but not an experimental certificate. The sole flight attempt was performed in front of media. After many failed engine start attempts, the aircraft was started without the pilot and the vehicle was damaged while securing it. The aircraft was not publicly displayed again.

Specifications

References

1930s United States experimental aircraft
Single-engined tractor aircraft
VTOL aircraft
Low-wing aircraft
Unflown aircraft
Westfall Sport. The Westfall Sport is a single seat biplane modeled after the Waco F2.

Development
Miles Westfall was born in 1901, and raised in New Richmond, Indiana. At age 6 his passion for flying machines was ignited when he saw a group of balloons fly over his house. He brought this passion to life as an adult. He made a living in Oklahoma City by running a cafe, tuning pianos, and selling restored pianos. He built his first airplane in 1930, a Church Midwing JC-1, using a motorcycle engine for propulsion.

After his experience with the Midwing, Westfall began planning an aircraft of his own design. This resulted in his Sport, first flown in 1934.

Design
The Westfall Sport had a welded steel tube fuselage with fabric covering. Its biplane wings were positively staggered, and were made of wood. It initially flew powered by a Ford automobile engine. Westfall mounted a cooling radiator ahead of the engine as in an automobile, cutting a hole through to allow a propeller shaft. After some experience with this layout, he replaced it with a modified OX-5 radiator below the cowling. By 1935, Westfall had reworked the airplane to use a LeBlond radial engine rated at 65 hp.

Operational history
The prototype was finished and test flown in Oklahoma City in 1934. After replacing the Sport's Ford Model A engine and modified OX-5 radiator with an air-cooled 65-hp LeBlond radial, Westfall logged 1000 hours flying air tours across the United States. Just before the war began, the US Civil Aeronautics Administration mounted a crackdown against homebuilt aircraft, and Westfall was sent to jail for several months as an example to other experimenters.

Variants
By 1964 Westfall desired a two-place airplane, and began designing a negative-stagger biplane which he named the Mark V Special, a loose reinterpretation of the Beechcraft Model 17 Staggerwing. It had steel-tube fabric-covered fuselage and wood wings, a streamlined windscreen and Cessna-type spring main landing gear. The project took nearly eight years to completion. Westfall flew the airplane to Oshkosh in 1978.

Westfall's Special was noted for its excellent landing characteristics and gentle stall, a result of installing its lower wing at a lower angle of attack than the upper and of using wings of unequal span. The airfoil was a Boeing 106R. The 43-inch-chord wings were separated by a 46-inch gap. The aerodynamics resulting from this arrangement were analyzed by William H Durand in a series of articles in EAA's Sport Aviation magazine.

The fuselage is 21 feet 2 inches long with a 42-inch-wide cabin. The forward-mounted fuel tank held 30 gallons, and it was powered by a Lycoming O-290 (125 hp) and a metal propeller.

Designer death
Miles Westfall died on 27 April 1979, not long after introducing his Mark V Special to the aviation community. His aviation output was summarized in a 2006 magazine article.

Specifications (Westfall Sport)

Notes
Prototype currently owned by Paul Agaliotis in California.

References

1930s United States sport aircraft
Biplanes
Aircraft first flown in 1934
Single-engined tractor aircraft
Bikle T-6. The Bikle T-6 is an American, mid-wing, single seat, glider designed by Paul Bikle and based upon the design of the Schreder HP-14. Even though only one T-6 was built it is noted as the most tested and studied glider with complete data published. It has been used extensively as a comparative reference glider for evaluating other designs during in-flight comparisons.

Design and development

Bikle developed the all-metal T-6 during the time when he was director of the US National Aeronautics and Space Administration Dryden Flight Research Facility. He changed the design from the HP-14 by adding  in to each wing, bringing the span to . The flaps were shortened by  each and the ailerons increased in span by a corresponding amount. The airfoil was altered from the stock Wortmann FX 61-163 to simplify construction, even at the cost of some measure of performance. The construction of the airframe was modified to eliminate the use of pop rivets and the structure and assembly requirements were simplified. The flap and flight control systems were also redesigned. Bikle also developed the T-tail, installing it in place of the HP-14's V-tail.

The T-6 is named for Bikle's competition number "6" and the T-tailed design of the aircraft.

Operational history
Upon completion of the aircraft Bikle entered it in the 1970 US Open Class Nationals, held in El Mirage, California, in which he placed fifth.  Following the competition Bikle, an aeronautical engineer by profession, conducted an extensive series of tests to measure the performance of the aircraft and then published his results in Soaring Magazine, the journal of the Soaring Society of America. As a result of its precisely-known performance, the aircraft has often been used as a comparative platform for evaluating other sailplanes in flight.

The aircraft has been removed from the Federal Aviation Administration aircraft register.

Specifications (T-6)

See also

References

1970s United States sailplanes
Castiglioni Dragon Fly 333. 

The Dragon Fly 333 is an ultralight utility helicopter developed by archaeologists and filmmakers Angelo and Alfredo Castiglioni in the 1990s. French UAV manufacturer CAC Systèmes created a drone version named the Héliot for use in reconnaissance and as an aerial target, but the aircraft did not enter production.

DF Helicopters was acquired in 2010 by a Swiss Group, Avio International Group.

Variants
 Dragon Fly 333 - initial version 
 Dragon Fly 333 AC - RAI-VLR certified version
 CAC Systèmes Héliot - drone version
 Dragon Fly 333 ULR - ultralight version 

–==Specifications (333)==

References

Bibliography

External links
 Manufacturer's website 

1980s Italian civil utility aircraft
1980s Italian helicopters
MPrest Systems. mPrest Systems is a private Israeli company, producing C4I applications. It serves commercial companies as well as military and law enforcement agencies.

It is the developer of the Battle Management Control (BMC) system in Israel's Iron Dome system, a mobile air defense system designed to intercept all kinds of short-range rockets, and of its weapons control system. The BMC is informally known as "Iron Glow". mPrest is 50% owned by Rafael Advanced Defense Systems, the prime contractor of Iron Dome. Its chief executive officer is Natan Barak, a former director of C4I for the Israel Navy.

mPrest Systems has also used the technology behind its Iron Dome command and control platform to enable natural disaster management.

References

Defense companies of Israel
Companies based in Petah Tikva
Raoul Hoffman. Raoul J. Hoffman was a Hungarian-born Jewish engineer and writer who moved to the United States of America notable for the aircraft he designed or helped to design.

Aircraft design
Hoffman helped develop the Laird Super Solution racer, and Owl Trimototor. Later he worked for C.L. Snyder's company Arup Manufacturing Corporation, developing a series of tailless aircraft known as the Arup S-1, and S-2. When diagnosed with tuberculosis, Hoffman moved to St. Petersburg, Florida and developed his own version for a customer in Chicago, Illinois. After poor performance, and arson destroying the Arup S-3 follow-on, Hoffman returned to Arup to develop the Arup S-4.

Hoffman's aircraft

The aircraft which Hoffman designed during his absence from Arup was of similar tailless semi-circular "heel wing" configuration to the Arup designs. It is sometimes mistakenly described as a flying wing, but in fact it has a pronounced fuselage nacelle protruding above and forward of the wing.

Design and development
The chord of Hoffman's own design spanned from the rear of the cowling along the entire fuselage of the aircraft. The thickness of the wing was up to  at the root. From the top the wing appeared semi-circular with a slightly swept leading edge. The aircraft used a conventional taildragger configuration with retractable landing gear. The center section and controls were welded steel tubing, and the rest was spruce wood with aircraft fabric covering.

Operational history
The test aircraft used fixed landing gear for trials. Test flights were successful, with the aircraft winning an impromptu race against a  conventional aircraft. Visibility was noted as poor compared to conventional aircraft. During later 1936 testing, the prototype caught fire and crashed, from leaking fuel lines, killing its test pilot.

Specifications

See also

References

 "A Novel All-Wing Airplane", Raoul J. Hoffman; Popular Aviation, March 1935, pp 163 and 196.

Aircraft designers
American aerospace engineers
Hungarian engineers
Pyromellitamide gels. Pyrometallide gels are types of gels based on pyromellitamide molecules. Such gels being developed which will enable the repair of severed muscles and spinal cords in patients.

Artificial muscles 

These types of artificial muscles are made possible by creating synthetic materials which are very similar to the ones which make up human tissues and cells. These artificial materials are so similar that the body does not reject the material and instead allows normal cell growth in the materials which eventually become absorbed into the body.

Self-assembled gel 

The gel molecule is composed of a tetra-alkane benzene-1,2,4,5-tetracarboxamide. The gel structure is made up of millions of tiny fibres, which form a 3D mesh by trapping a liquid in the same way that a sponge absorbs water, to form a solid. The unique feature of self-assembled gels is that chemical reactions are not required to form the fibres; it is simply a case of heating them up in a liquid and waiting for them to set.

Uses 

There is huge range of potential applications for these gels. Aside from the artificial muscles, these gels could also be used for drug delivery in cancer patients, where they can injected into the patient, and the gel will slowly release a constant stream of anti-cancer drugs in the body. There are also applications for computer and television screens, where gels are used for LCD screens. These gels could lower the manufacturing costs and be used to construct flexible display screens.

References

Muscular system
Modelling of particle breakage. Modelling of particle breakage is a process used in grinding.

Grinding is an important unit operation used in many industries, such as ceramics, composites, foods, minerals, paints, inks and pharmaceuticals. Current technology, however, is inefficient and power-intensive. It is, therefore, important that grinding processes are properly designed and grinding devices are operated at optimum operating conditions. 

There are two methods to model particle breakage: population balance model and discrete element method.

Population balance model 
Population balance model (PBM) is often used to predict grinding performance, requiring the knowledge of selection and breakage function which are related to the energy distribution inside mills.

Discrete element method 
Grinding performance is a complex process depending strongly on the interactions between particles. The knowledge of energy distribution inside mills is critical to the determination of parameters in PBM model. While such information is difficult to obtain from experiments, numerical modelling based on discrete element method (DEM) can readily determine the energy distribution based on the well established contact mechanics.

References

Secondary sector of the economy
Zinag. Zinag is an alloy of three metallic materials (zinc, aluminium and silver), the composition of the alloy gives excellent mechanical and anticorrosive properties, this is an alloy of low density that can be used for many process such as automotive area, medical, aerospace, construction industry, etc., the silver gives the superplasticity which makes this alloy can be deformed without losing its mechanical properties.

With this alloy can be made different process such as: Zinagizado, Metal Foams.

References

Further reading

Zinc alloys
Aluminium compounds
Silver compounds
Field strength meter. In telecommunications, a field strength meter is an instrument that measures the electric field strength emanating from a transmitter.

The relation between the electric field and the transmitted power

In ideal free space, the electric field strength produced by a transmitter with an isotropic radiator is readily calculated.

 

where
 is the electric field strength in volts per meter
 is the transmitter power output in watts
 is the distance from the radiator in meters

The factor  is an approximation of 

where  is the impedance of free space.     is the symbol for ohms.

It is clear that electric field strength is inversely proportional to the distance between the transmitter and the receiver. However, this relation is impractical for calculating the field strength produced by terrestrial transmitters, where reflections and attenuation caused by objects around the transmitter or receiver may affect the electrical field strength considerably.

Field strength meter 
A field strength meter is actually a simple receiver. The RF signal is detected and fed to a microammeter, which is scaled in dBμ. The frequency range of the tuner is usually within the terrestrial broadcasting bands. Some FS meters can also receive satellite (TVRO and RRO) frequencies. Most modern FS meters have AF and VF circuits and can be used as standard receivers. Some FS meters are also equipped with printers to record received field strength.

Antennas
When measuring with a field strength meter it is important to use a calibrated antenna such as the standard antenna supplied with the meter. For precision measurements the antenna must be at a standard height.  A value of standard height frequently employed for VHF and UHF measurements is .  Gain correction tables may be provided with the meter, that take into account the change of antenna gain with frequency.

Minimum field strength criteria
The CCIR defines the minimum field strength for satisfactory reception. These are shown in the table below. (Band II is reserved for FM radio broadcasting and the other bands are reserved for TV broadcasting.)

References 

Electromagnetic radiation meters
Broadcast engineering
Adibatla. Adibatla is a village in Ranga Reddy district near eastern part of Hyderabad, Telangana, India. It derives its name from the erstwhile ruler of Bijapur, Yusuf Adil Shah. The TATA Aerospace SEZ is located here. Adibatla is also referred to as a future Gachibowli by local realtors.

Tata Advance System Ltd., a unit of the Tata Group, has sought and obtained 50 acres of land in the 250-acre Aerospace and Precision Engineering Special Economic Zone (SEZ) coming up at Adibatla in Ibrahimpatnam mandal in Ranga Reddy district not far from Hyderabad. "It will be the first aerospace SEZ in the country. The formal approval for the SEZ was accorded by the centre in March 2008 and the notification is expected shortly," state government sources told 'TOI'.

In all, the state has identified 351 acres at Adibatla village. While the SEZ would come up over 250 acres, the remaining 100 acres have been earmarked for other ancillary units. Apart from the Tata unit, land is to be allotted to MTAR and other local manufacturers both within and outside the SEZ.

See also
 Raviryal
 Wonderla Amusement Park, Hyderabad
 GMR Aerocity Hyderabad
 Novotel Hyderabad Airport Hotel

References

Neighbourhoods in Hyderabad, India
Villages in Ranga Reddy district
LBE. LBE could refer to:

Places 
 The London Borough of Ealing, England
 The London Borough of Enfield, England
 Arnold Palmer Regional Airport, Pennsylvania, US

Military 
 Pratt-Read LBE, a WWII glide bomb prototype
Landing Barge, Emergency repair, a WWII ship type

Other uses 
 Lead-bismuth eutectic, an alloy
 Location-based Entertainment, theme parks and alike
 Lübeck-Büchen Railway Company ()
 LBE Nos. 1 to 3
 Lak language, spoken in Russia (ISO 639-3:LBE)