omniomni/omni-engineering huggingface dataset:
VMM-166. Marine Medium Tiltrotor Squadron 166 (VMM-166) was a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport  aircraft. The squadron, known as the "SeaElk", was last based at Marine Corps Air Station Miramar, California.  Activated in 1985, HMM-166 was the youngest CH-46 helicopter squadron in the Marine Corps.  The squadron was redesignated as a tiltrotor squadron on 23 June 2010. The squadron was deactivated on 1 October 2021.

History

The squadron was activated on 13 September 1985 at Marine Corps Air Station Tustin, California and assigned to Marine Aircraft Group 16.  They relocated during 1995 to Marine Corps Air Station El Toro, California and again during 1999 to MCAS Miramar, California.

166 has been active in:
 1990 - Operation Desert Shield
 1991 - Operation Desert Storm
 1994 - Operation Support Hope
 1994 - Operation Restore Hope
 1998 - Operation Southern Watch
 2004 - Operation Iraqi Freedom

In 2004, HMM-166 deployed as the aviation combat element of the 11th Marine Expeditionary Unit in support of Operation Iraqi Freedom.  During this deployment they participated in the Battle of Najaf.

On 5 November 2007, the squadron deployed to the Western Pacific as the aviation combat element of the 11th Marine Expeditionary Unit.  From 4 to 6 December, as part of the 11th MEU, HMM-166 flew 29 humanitarian assistance missions over Bangladesh to transport more than 54,165 pounds of food and supplies and 1875 gallons of water to the people most affected by Tropical Cyclone Sidr.

On 5 May 2009, a SuperCobra belonging to the squadron crashed at 1154 hrs PST into the Cleveland National Forest, California.  The crash resulted in the fatalities of the aircraft's two pilots, Jessica Conkling, 27, and Aaron Cox, 26. The SuperCobra had departed Naval Air Facility El Centro 30–40 minutes earlier for Marine Corps Air Station Miramar.  The cause of the crash was an improperly secured transmission cover which came off in flight and struck the tail rotor.

 

In September 2009, HMM-166(REIN) again deployed as the aviation combat element of the 11th Marine Expeditionary Unit.  They participated in exercises in East Timor, Indonesia, United Arab Emirates, Kuwait and Djibouti.  They returned from the deployment in April 2010.  The squadron was redesignated as VMM-166 on 23 June 2010 as they transitioned to the MV-22 Osprey.

On 1 October 2021, VMM-166 was decommissioned at Marine Corps Air Station Miramar, CA as a result of Marine Corps decisions from Force Design 2030.

Unit awards
A unit citation or commendation is an award bestowed upon an organization for the action cited. Members of the unit who participated in said actions are allowed to wear on their uniforms the awarded unit citation. HMM-166 has been presented with the following awards:

See also

 United States Marine Corps Aviation
 Organization of the United States Marine Corps
 List of active United States Marine Corps aircraft squadrons

References

External links
 

VMM166
All gas-phase iodine laser. All gas-phase iodine laser (AGIL) is a chemical laser using gaseous iodine as a lasing medium. Like the chemical oxygen iodine laser (COIL), it operates at the 1.315 μm wavelength (near-infrared).

AGIL was developed in order to eliminate the problems with aqueous chemistry of the COILs. AGIL uses a reaction of chlorine atoms with gaseous hydrazoic acid, resulting in excited molecules of chloronitrene (NCl), which then pass their energy to the iodine atoms much like the singlet oxygen does in COIL. The iodine atoms then emit the laser radiation itself.

AGIL has numerous advantages over COIL. The chemicals are all in gaseous phase, therefore easier to work with than liquids, especially in microgravity conditions. The chemicals are also lighter, which is a significant advantage in aerospace applications.

See also
List of laser articles

References

External links
 A new all gas-phase chemical iodine laser

Chemical lasers
Strebor. Strebor Diecasting (the name comes from Roberts spelled backwards) was a die-casting company in Radcliffe, Lancashire which was founded in 1926 as the Roberts Company. In 1933 the name was changed to the Strebor Diecasting company. During WW2 it made war material, after the war it made metal toys, and eventually achieved widespread notice as makers of cylinder locks and locking devices for the motor trade during the 1960s and 1970s under the STREBOR and STRONIS trade names. Their locks were to be found on British cars such as the Mini.  The company was finally dissolved in 2003/2004 following a period of rundown and some industrial relations problems.

References

External links
This Is Lancashire
Local History- List of Lock Makers

Companies based in the Metropolitan Borough of Bury
Defunct manufacturing companies of the United Kingdom
Solid wood. Solid wood is a term most commonly used to distinguish between ordinary lumber and engineered wood, but it also refers to structures that do not have hollow spaces. Engineered wood products are manufactured by binding together wood strands, fibers, or veneers with adhesives to form a composite material. Engineered wood includes plywood, oriented strand board (OSB) and fiberboard. The fact that a product is made from solid wood is often touted in advertisements. However, using solid wood has advantages and disadvantages.

Comparison with engineered wood
Perhaps the greatest advantage of solid wood is that the wood is the same all the way through, so repairs are relatively easy. Repairs to veneer are much more difficult and sometimes impossible.

Solid wood furniture is strong enough to easily satisfy all furniture applications, and it can last for centuries. Society is still questioning whether furniture made of plywood (often made from pine) can do the same. Plywood and other engineered wood products used to make furniture are typically covered with a veneer such as Cherry.

It is common today for furniture manufacturers and retailers to advertise such veneered plywood furniture as made of "wood solids with cherry veneers". Most customers believe that to mean solid planks of less expensive woods such as poplar, etc., with expensive woods such as cherry used for veneers. However, "wood solids" is a term of art. The "wood solids" are simply plywood, or another engineered wood product.

In the US, the Federal Trade Commission doesn't allow furniture to be advertised as made of "solid wood" unless all exposed surfaces are in fact solid wood. Solid wood is expensive. Engineered wood (often advertised as wood solids) is not.

Solid wood vs. hollow wood
One of the most frequently made hollow wood structures are hollow core doors. Hollow core doors are much lighter than solid wood doors, cheaper and are easier to install. However, sound travels more freely through them, which can be a problem if the house is noisy or the occupants desire a lot of privacy. Also, hollow core doors should not be used as doors to the outside because they can more easily be broken open by robbers. Solid wood doors are slightly more fire resistant because the fire has to burn through more material, however, using a steel door will increase fire resistance by a much larger margin.

References

Wood products
Beriev Be-30. The Beriev Be-30 (NATO reporting name "Cuff") is a Russian regional airliner and utility transport aircraft designed by the Beriev Design Bureau. It was developed specifically for Aeroflot local service routes using short, grass airstrips. It was also designed to be used in the light transport, aerial survey and air ambulance roles. It competed against the Antonov An-28 and the Czechoslovakian LET-410.

Design and development

The original design featured interconnected engines, so that in case of one engine failing, the remaining engine could drive both propellers. This feature was not implemented in the production version.

The first prototype flew on 3 March 1967, fitted with Shvetsov ASh-21 piston engines, while the first production prototype flew on 18 July 1968, using more powerful Glushenkov TVD-10 turboprop engines. The first deliveries to Aeroflot were in mid-1969.

The Be-30 was designed for a flight crew of two with passenger arrangements for 14 (in the Be-30) to a maximum of 17 (in the Be-32) seated two abreast. Corporate shuttle configuration seated seven. The air ambulance configuration could accommodate nine stretcher patients, six seated patients and one medical attendant.

Three Be-30s and five Be-32s were built in the late 1960s before the program was terminated. In the early 1990s one of the original Be-32s was converted to a Be-32K demonstrator and presented at the 1993 Paris and Dubai air shows. It was painted in the colors of the now defunct Moscow Airways which had ordered 50 aircraft but ceased operations before any could be built or delivered.

Variants

 Be-30 Prototype first flew on 3 March 1967, powered by two  Shvetsov ASh-21 radial piston engines, driving three-blade constant speed propellers. Fuel capacity .
 Be-30: Production model
 Be-30A: With 'high-density' seating for 21-23 passengers
 Be-32: Upgraded model first displayed in 1993. Two  Glushenkov TVD-10B turboprops driving three-blade constant speed propellers.
 Be-32K: 'Westernized' version with two  Pratt & Whitney Canada PT6A-65B turboprops driving three-blade Hartzell reversible pitch propellers. Fuel capacity .

Operators
Operators of the Beriev Be-30 (in order by country)

 Air Africa

 Moscow Airways

 Aeroflot

Specifications (Be-30)

References

External links

 
 Beriev site
 Be-30/32 at Airliners.net

Be-0030
1960s Soviet airliners
Aircraft first flown in 1967
High-wing aircraft
Twin-turboprop tractor aircraft
Aircraft with retractable tricycle landing gear
Twin piston-engined tractor aircraft
Richard Miller (engineer). Richard Keith Miller is an American engineer who was the founding president of Olin College since 1999. He stepped down from his role as president on June 30, 2020. His successor will be Gilda Barabino, dean of Grove School of Engineering. Previously, Miller was dean of the College of Engineering and a professor at the University of Iowa.
Miller received a B.S. in aerospace engineering in 1971 from the University of California, Davis and an M.S. degree in mechanical engineering from the Massachusetts Institute of Technology in 1972. In 1976, he received a Ph.D. in applied mechanics from the California Institute of Technology.

In 2012, Miller was elected a member of the National Academy of Engineering for establishing a new paradigm for undergraduate engineering education and establishment of Olin College.

References

External links
 Olin bio
 National Academy of Engineering member page

Heads of universities and colleges in the United States
Living people
Olin College faculty
University of California, Davis alumni
Place of birth missing (living people)
Year of birth missing (living people)
Members of the United States National Academy of Engineering
Fellows of the American Academy of Arts and Sciences
Fellows of the National Academy of Inventors
American university and college faculty deans
University of Southern California faculty
University of California, Santa Barbara faculty
University of Iowa faculty
20th-century American engineers
Engineering academics
Broadway (processor). Broadway is the codename of the 32-bit central processing unit (CPU) used in Nintendo's Wii home video game console. It was designed by IBM, and was initially produced using a 90 nm SOI process and later produced with a 65 nm SOI process.

According to IBM, the processor consumes 20% less power than its predecessor, the 180 nm Gekko used in the GameCube video game console.

Broadway was produced by IBM at their semiconductor development and manufacturing facility in East Fishkill, New York (now owned by GlobalFoundries). The bond, assembly, and test operation for the Broadway module was performed at the IBM facility in Bromont, Quebec. Very few official details have been released to the public by Nintendo or IBM; unofficial reports claim it is derived from the 486 MHz Gekko architecture used in the GameCube and runs 50% faster at 729 MHz.

The PowerPC 750CL, released in 2006, is a stock CPU offered by IBM; it is virtually identical to Broadway, but was provided in multiple clock speed variants (ranging from 400 MHz–1000 MHz.)

Specifications
 90 nanometer process technology, shrunk to 65 nm in 2007. 
 Superscalar Out-of-order execution PowerPC core, specially modified for the Wii platform
 IBM silicon on insulator (SOI) technology
 Backward compatible with the Gekko processor
 729 MHz
 4 stages long Two integer ALUs (IU1 and IU2) – 32 bit
 7 stages long 64-bit floating-point unit (FPU) (or 2 × 32-bit SIMD, often found under the denomination "paired singles")
 Branch Prediction Unit (BPU)
 Load-Store Unit (LSU)
 System Register Unit (SRU)
 Memory Management Unit (MMU)
 Branch Target Instruction Cache (BTIC)
 SIMD Instructions – PowerPC750 + Roughly 50 new SIMD instructions, geared toward 3D graphics
 64 kB L1 cache (32 kB instruction + 32 kB data)
 256 kB L2 cache
 2.9 GFLOPS

External bus
 64-bit
 243 MHz
 1.944 gigabytes per second bandwidth

Gallery

References 

Nintendo chips
Wii hardware
IBM microprocessors
PowerPC microprocessors
Alphamosaic. Alphamosaic Ltd was a fabless semiconductor company specialising in low power mobile multimedia processors, based on their VideoCore architecture.

History

Alphamosaic was founded in Cambridge, UK by Robert Swann and Steve Barlow in October 2000, as a spin out from Cambridge Consultants supported by venture capital from Prelude Trust, ACT and TTP Ventures.

The company developed semiconductor coprocessor chips for the processing of audio, video, imaging, graphics, games and ring tones. The coprocessors were based on VideoCore technology that the company developed, and announced in November 2002.

Later in 2002, Alphamosaic announced the launch of their first multimedia processor, VC01.

In September 2004, Alphamosaic was acquired by Broadcom for $123 million, forming its Mobile Multimedia group on the Cambridge Science Park site.

See also 
 VideoCore

References

Broadcom
Companies based in Cambridge
2004 mergers and acquisitions
Defunct computer companies of the United Kingdom
Defunct computer hardware companies
Defunct manufacturing companies of the United Kingdom
Hungarian Space Office. The Hungarian Space Research Office (HSO; ) is the official Government of Hungary agency responsible for the civilian space program as well as aeronautics and aerospace research. It is the organization whose purpose is to coordinate Hungarian space exploration-related activities, both national programs and European Space Agency related programs, where Hungary is a member state.

The Hungarian Space Board (HSB), headed by Dr. Kálmán Kovács (former Minister for Informatics and Communications), helps the work of the Government in strategic cases. The government advisory body in technical matters is the Scientific Council on Space Research (SCSR). The SCSR provides the scientific background of all Hungarian space activities. The research and application activities have been carried out in about 25 scientific institutes and university departments. Their personnel, involved in space-related work consists of more than 250 scientists and engineers. The Hungarian government established it in January 1992. The former director is Előd Both (1997-2015), the present director is Fruzsina Tari.

In 2003, the Hungarian Space Office signed the ECS Agreement in 2003 with the ESA to become a cooperative state. On 24 February 2015, the office signed to become part of the ESA, and deposited their ratification on 4 November 2015.

See also
 List of government space agencies

References

External links
Hungarian Space Office
European Space Agency
 

Space agencies
Science and technology in Hungary
Space program of Hungary
Government agencies established in 1992
Science and technology in Europe
1992 establishments in Hungary
Pioneer Instrument Company. The Pioneer Instrument Company was an American aircraft component manufacturer.

History
The Pioneer Instrument Company was started by Morris Maxey Titterington and Brice Herbert Goldsborough in Brooklyn, New York in 1919 using patents from the Lawrence Sperry Aircraft Corporation. Charles Herbert Colvin was the president. They specialized in aeronautical instruments including a bubble sextant and the Earth Inductor Compass. The company later acquired control of Brandis & Sons, Inc., in 1922, and Pioneer was later acquired by the Bendix Aviation Corporation in 1928. As the United States was entering World War II, the company became the Pioneer Instrument Division of Bendix Aviation, and moved to New Jersey. By 1943 it had merged with the Eclipse Machine Company to become the Eclipse-Pioneer Division of Bendix Aviation.

The Pioneer division did not survive the end of the Bendix Corporation in 1983.

Products

 ST-90 for the Jupiter and early Saturn I
 ST-80 for the PGM-11 Redstone
 ST-120 for the Pershing missile
 ST-124-M3 inertial platform for the Saturn V

References

Notes

Bibliography

 

1919 establishments in New York (state)
Aerospace companies of the United States
Aircraft component manufacturers of the United States
American companies established in 1919
American companies disestablished in 1983
Companies based in New Jersey
Electronics companies established in 1919
Electronics companies disestablished in 1983
Bendix Corporation
9D. 9D or 9-D can refer to:

IATA code for Toumaï Air Tchad
New York State Route 9D
Kepler-9d, an extrasolar planet orbiting the star Kepler-9
SSH 9D, alternate designation for Washington State Route 108
Navy AIM-9D/G/H, designation for the AIM-9 Sidewinder
Orion 9D, a model of Lockheed Model 9 Orion aircraft
Yak-9D, a model of Soviet Yakovlev Yak-9
GCR Class 9D, a class of British 0-6-0 steam locomotive

See also
D9 (disambiguation)
Zbus. Z Matrix or bus impedance matrix in computing is an important tool in power system analysis. Though, it is not frequently used in power flow study, unlike Ybus matrix, it is, however, an important tool in other power system studies like short circuit analysis or fault study. 
The Zbus matrix can be computed by matrix inversion of the Ybus matrix.  Since the Ybus matrix is usually sparse, the explicit Zbus matrix would be dense and very memory intensive to handle directly.

Context 
Electric power transmission needs optimization. Only Computer simulation allows the complex handling required. The Zbus matrix is a big tool in that box.

Formulation
Z Matrix can be formed by either inverting the Ybus matrix or by using Z bus building algorithm. The latter method is harder to implement but more practical and faster (in terms of computer run time and number of floating-point operations per second) for a relatively large system.

Formulation:

Because the Zbus is the inverse of the Ybus, it is symmetrical like the Ybus. The diagonal elements of the Zbus are referred to as driving-point impedances of the buses and the off-diagonal elements are called transfer impedances.

One reason the Ybus is so much more popular in calculation is the matrix becomes sparse for large systems; that is, many elements go to zero as the admittance between two far away buses is very small. In the Zbus, however, the impedance between two far away buses becomes very large, so there are no zero elements, making computation much harder.

The operations to modify an existing Zbus are straightforward, and outlined in Table 1.

To create a Zbus matrix from scratch, we
start by listing the equation for one branch:

Then we add additional branches according
to Table 1 until each bus is expressed in the matrix:

References 

Electrical power control
Zaccagnaite. Zaccagnaite is a mineral, with a formula Zn4Al2CO3(OH)12·3H2O. It occurs as white hexagonal crystals associated with calcite in cavites in Carrara marble of the Italian Alps and is thought to have formed by hydrothermal alteration of sphalerite in an aluminium rich environment.  It is named after Domenico Zaccagna (1851–1940), an Italian mineral collector.

See also
List of minerals
List of minerals named after people

References
Webmineral data
Mindat.org

Zinc minerals
Aluminium minerals
Carbonate minerals
Hexagonal minerals
Minerals in space group 194
Kazushige Goto. is a software engineer specializing in high performance, hand-written, machine code.

Education
Goto was a research associate at the Texas Advanced Computing Center at the University of Texas at Austin when he wrote his famously hand-optimized assembly routines for supercomputing and PC platforms that outperform the best compiler generated code. 

Several of the fastest supercomputers in the world still use his implementation of the Basic Linear Algebra Subprograms (BLAS) known as GotoBLAS.

Career
In 2010, Goto joined Microsoft's Technical Computing Group with the title of Senior Researcher. 

In July 2012, he joined Intel with the title of Software Engineer. 

Goto continues to write hand-optimized machine code, utilizing detailed knowledge of the architecture to which he has access.

References

Further reading
  (25 pages) 
  
 

Japanese computer programmers
Living people
Year of birth missing (living people)
Zaherite. Zaherite is a mineral, a complex sulfate of aluminium, formula Al12(OH)26(SO4)5·20H2O. It was discovered in the Salt range, Punjab, Pakistan by M. A. Zaher of the Bangladesh Geological Survey after whom it is named in 1977. This mineral would be extremely soluble in water and unlikely to persist anywhere except in the most arid of environments.  It spontaneously, and reversibly dehydrates around room temperature. Its color is white to blue-green.

See also
List of minerals
List of minerals named after people

References

Webmineral data

Aluminium minerals
Sulfate minerals
Triclinic minerals
Dewcell. Dewcells, dewcels or dew cell are instruments used for determining the dew point.  They consist of a small heating element surrounded by a solution of lithium chloride. As the LiCl absorbs moisture from the air, conduction across the heating element increases, current in it increases, and heat increases, evaporating moisture from the salt solution.  At a certain temperature the amount of moisture absorbed by the salt solution equals the amount evaporated (equilibrium).

Inside the dewcell core a thermistor composite (or other temperature measurement device) changes electrical resistance with the temperature created by the heating.  A front end processor provides a reference voltage, measures the output of the network, and calculates the dew point.

References

External links 

 Foxboro Dewcel documentation 

Atmospheric thermodynamics
Meteorological instrumentation and equipment