omniomni/omni-engineering huggingface dataset:
American Helicopter XH-26 Jet Jeep. The American Helicopter XH-26 Jet Jeep (known as the XA-8 by its manufacturer) is an experimental tip jet helicopter developed in 1951 by the American Helicopter Company to meet a United States Army and Air Force (USAF) request for a collapsible and air-droppable observation helicopter.

A few prototypes were evaluated and flown during the 1950s, but it was decided not to adopt this type. Several examples have survived as museum pieces into the present day.

Design and development

Design of the Model XA-8 began in 1951, following a specification for a one-man, collapsable helicopter that was capable of being assembled with simple tools; the intended roles of the aircraft were for observation and as an airdropped rescue vehicle. A contract for development was awarded in June 1951, and the prototype XH-26 flew in January 1952. The aircraft was made of aluminum with a fiberglass rear fuselage. It could be collapsed to fit inside a  container, and when stripped down weighed less than ; two men could assemble the aircraft in 20 minutes. Power was provided by two XPJ49 pulsejets serving as tipjets; startup was by compressed air and the aircraft could take off within 30 seconds. The small tail rotor was used solely for directional control.

American Helicopter chose the name "Jet Jeep", because the XH-26 could be used like a Jeep, but in the air. It could be transported by a Jeep, and even used the same fuel. The XH-26 could be dropped by air and assembled and be ready for flight in 20 minutes.

Operational history
Both the Army and USAF evaluated the five prototype Jet Jeeps. They proved to be rugged and durable vehicles with a top speed of  and a ceiling of . Unfortunately, the pulse jets produced an unacceptable amount of noise and the drag of the engines in the event of power loss would prevent safe landings by autorotation. For these two reasons the Army found the pulse jet helicopters unsuitable as it had those with ramjets. Finally, cost considerations forced the cancellation of the program. The replacement of the XH-26's pulse jets with ramjets was suggested but never undertaken; however, the Hiller YH-32 Hornet helicopter was built using blade tip ramjets.

Operators

 United States Air Force
 United States Army

Surviving aircraft

 50-1840 – XH-26 in storage at the United States Army Aviation Museum in Ozark, Alabama
 50-1841 – XH-26 on static display at the National Museum of the United States Air Force in Dayton, Ohio.

Specifications (XH-26)

See also

References

Notes

Bibliography

 Apostolo, Giorgio. The Illustrated Encyclopedia of Helicopters. New York: Bonanza Books, 1984. . 
 Simpson, R. W. Airlife's Helicopters and Rotorcraft. Ramsbury, UK: Airlife Publishing, 1998. .

H-26
Experimental helicopters
Pulsejet-powered aircraft
1950s United States military utility aircraft
1950s United States helicopters
Tipjet-powered helicopters
Aircraft first flown in 1952
Single-rotor helicopters
Aircraft with skid landing gear
SAI KZ VIII. The SAI KZ VIII was an aerobatic sport aircraft first built in Denmark in 1949. Designed by Björn Andreasson, it was a low-wing cantilever monoplane of conventional configuration with fixed tailwheel undercarriage and a single seat. The first KZ VIII was custom-built by SAI for the Danish aerobatic display team Sylvest Jensen Luftcirkus, in which Peter Steen piloted the aircraft in some 50 performances in  summer 1950. At the same time a full set of parts for a second aircraft was produced but this was not assembled until 1959. In 1996 another was completed by amateur builder Hardy Vad, powered by a flat-four engine.

Specifications

See also

References

External links

 Danmarks Flymuseum page on the KZ VIII (in Danish)
 Уголок неба

1940s Danish sport aircraft
Skandinavisk Aero Industri aircraft
Aerobatic aircraft
Low-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1949
Dautel. Dautel is a German company, headquartered in Leingarten, manufacturing hydraulic tail lifts and dumpers for trucks. It is one of the several German companies that returned production back to Germany in the mid-2000s.

History
The blacksmith Ernst Dautel did fitting work for horse driven wagons. His son, Emil Dautel learned the trade from him and founded the manufacturing company in 1933. The company profited heavily by the demand in construction work after the World War II.

References

External links
 

Manufacturing companies established in 1933
Truck manufacturers of Germany
1933 establishments in Germany
Manwan Dam. The Manwan Dam () is a large hydroelectric dam in China. It is built on the Mekong (Lancang) River with a capacity of 1,570 MW.

See also 

 List of power stations in China

References

External links 
 The Manwan Dam, the first dam to be built across the Lancang (Mekong) River - 2003 (photo)
 Yu Xiaogang & Jia Jiguo: An Overview of Participatory Social Impact Assessment for Manwan Hydropower Station in Lancang River (pdf)
 Manwan Dam Social Impact Assessment

Hydroelectric power stations in Yunnan
Dams in China
Dams in the Mekong River Basin
Dams completed in 1995
Buildings and structures in Lincang
Buildings and structures in Pu'er
Pantai Remis landslide. The Pantai Remis landslide was a rock fall and flood that occurred on 21 October 1993, near Pantai Remis in Perak, Malaysia. The landslide took place in an abandoned open cast tin mine (in a region of the state well known for its tin mining industry) close to the Strait of Malacca. Video footage shows the rapid collapse of the working face closest the sea, allowing complete flooding of the mine and forming a new cove measuring approximately .

YouTube video
A video of the event was uploaded to YouTube on 17 May 2007. The accompanying description in Cantonese reads: 

Prof. Dave Petley, the Wilson Chair in Hazard and Risk in the Department of Geography at the University of Durham, England, and founder and director of the International Landslide Centre, described the recording as the best landslide video he had ever seen, despite its poor resolution.

References

External links
Video of the event
Upscaled video of the event
Blog on the event by Professor Dave Petley
Google Maps image of the cove
OpenStreetMap image of the cove

October 1993 events in Asia
1993 mining disasters
Landslides in Malaysia
1993 in Malaysia
Manjung District
Megafloods
1990s landslides
1993 natural disasters
1993 disasters in Malaysia
Karl Kässbohrer Fahrzeugwerke. Karl Kässbohrer Fahrzeugwerke GmbH was a German vehicle manufacturer in Ulm. Its products were buses, coaches, vehicle transporters, trailers and special vehicles like snow groomer vehicles. The group broke up in 1995 due to economic problems and was acquired by Daimler Truck, which continues to produce under the brand name Setra.

History
In 1893, Karl Kässbohrer founded the Wagenfabrik Kässbohrer in Ulm. In 1922, Kässbohrer developed a trailer for goods transport, having solid rubber wheels. When Karl Kässbohrer senior died in 1922, his sons, Karl junior and Otto Kässbohrer, took over the company and began to produce the first 2x4 axle trailers. In 1928, Karl and Otto purchased Ulmer Karosseriefabrik Neuer & Thieme, a frame and body construction company, and focused on coach, bus, trailer and upper body production.

In 1931 Karl applied for a patent on semi-trailer coupling which was extremely reliable and low maintenance and further paved the way to 3-axle semi-trailers which changed the transportation industry. In the mid to late 1930s the first low-bed with 12 ton capacity was produced and the Kässbohrer Ulm factory in Peter-Schmid-Straβe expanded to meet demand with staff numbers increasing from 300 to 1000 between the years 1934 - 1939. In 1969, Kässbohrer was Germany's biggest coach and truck trailer producer. On April 29, 1973, Karl Kässbohrer passed away. Kässbohrer's coaches and buses were named Setra. The snow-grooming vehicles were called PistenBully and 2,000 were sold between 1979 and 1989. At the end of the 1990s, about 9,000 employees worked for Kässbohrer.

Starting in 1993, the company began falling apart. The division's truck bodies, semi-trailers and trailers were sold to the competitor Kögel. In 1994 the snow groomer and beach cleaner division was bought out by management and became Kässbohrer Geländefahrzeug. Daimler bought the bus and coach division in 1995 and the new name EvoBus was introduced. The only division which is still family owned is Kässbohrer Transport Technik Gmbh in Salzburg, Austria, which builds vehicle transporters. There is also a current Kässbohrer Fahrzeugwerke in Goch, Germany, manufacturing trailers for commercial vehicles, and is since 2002 part of the Tirsan group.

A great number of Kässbohrer Setra coaches and buses are still in service on European roads, sometimes having a mileage of more than a million kilometers.

See also 
 Ankai
 Eagle Bus
 Seida
 Setra
Chavdar

References

Notes

Bibliography 

 
 
 
 
 
 
 
 
 
 
 

Companies based in Ulm
Defunct motor vehicle manufacturers of Germany
Defunct bus manufacturers
Bus manufacturers of Germany
Sedes Air Base. Sedes Airport is a military airport 15 km east of Thessaloniki, Greece, and 3 km northeast of Thessaloniki's Macedonia International Airport. Sedes airport started operating during the Balkan Wars and has since been exclusively used by the Hellenic Air Force. Nowadays it also houses an aviation museum, displaying a variety of old aircraft types.

Sedes is home to the Air Force's 350th Guided Missile Wing and hosts

 Guided Missile Maintenance Squadron
 Guided Missile Training Squadron
 23rd Guided Missile Squadron - operating MIM-104 Patriot PAC-3 batteries

References

Airports in Greece
Transport infrastructure in Central Macedonia
Hellenic Air Force bases
Buildings and structures in Thessaloniki (regional unit)
Boom Gorge. Boom Gorge (, ) is a river gorge in Chüy Region and Issyk-Kul Region of Kyrgyzstan.

The gorge cuts, in a general north–south direction, across one of Tian Shan's mountain range systems. The range east of the gorge is known as Kyungey Ala-Too (, based on similar Kyrgyz spelling), the one to the west is the Kyrgyz Ala-Too ().

The river Chu passes northwards through it and then enters the wider Chüy Valley. The Bishkek-Tokmak-Kemin-Balykchy highway (A365) passes through the gorge, as does the railway from Bishkek to Balykchy.

References

Canyons and gorges of Kyrgyzstan
Validation master plan. A Validation Master Plan, also referred to as "VMP", outlines the principles involved in the qualification of a facility, defining the areas and systems to be validated, and provides a written program for achieving and maintaining a qualified facility. A VMP is the foundation for the validation program and should include process validation, facility and utility qualification and validation, equipment qualification, cleaning and computer validation. It is a key document in the GMP (Good manufacturing practice) regulated pharmaceutical industry as it drives a structured approach to validation projects.

Food and Drug Administration inspectors often look at VMPs during audits to see whether or not a facility's validation strategy is well thought-out and organized. A VMP should have logical reasoning for including or excluding every system associated with a validation project based on a risk assessment.

Format
The GAMP 5 standard recommends an approach to the creation of the plan.

Topics commonly covered include:
Introduction, scope, responsibilities, description of facility and design, building and plant Layout, cleanrooms and associated controlled environments, storage areas, personnel, personnel and material Flow, water and solid waste handling, infrastructure and utilities, water system, ventilation and air-conditioning system, clean steam, compressed air, gases and vacuum system, list manufacturing equipment, building management systems, products that are planned to be validated, qualification/validation approach, process validation and cleaning validation approach, microbiological monitoring, computer Validation, calibration, maintenance, related SOPs.

References

See also 
 Design qualification
 Installation qualification
 Operational qualification
 Performance qualification
 Process qualification
 Verification and validation

Drug manufacturing
USS Manderson Victory. USS Manderson Victory (AK-230) was a  acquired by the U.S. Navy during World War II.  She served in the Pacific Ocean theatre of operations through the end of the war, earning one battle star, and then returned to the United States for disposal.

Victory built in California
Manderson Victory (AK 230) was laid down 4 July 1944, by Permanente Metals Corporation, Yard No. 1, Richmond, California, under a U.S. Maritime Commission contract; launched 23 September 1944; sponsored by Mrs. Florence Robertson; transferred to the Navy 3 November 1944; and commissioned the same day at the Mare Island Navy Yard.

World War II operations
After shakedown off San Pedro, California, Manderson Victory loaded ammunition and planes on board and sailed for Hawaii 5 December to join Service Squadron 10, U.S. Pacific Fleet. She arrived Pearl Harbor 11 December.

Discharging her cargo of planes, Manderson Victory departed for the Caroline Islands, arriving Ulithi Atoll 26 December. She transported ammunition in the western Pacific Ocean into June 1945, with two voyages to the Ryukyu Islands from 28 March to 17 June 1945 during the assault and occupation of Okinawa. Departing Ulithi for the Philippine Islands 19 June 1945, the cargo ship arrived San Pedro Bay in the Philippine Islands 22 June and resumed her logistic support.

On 3 November Manderson Victory left for the United States, arriving Seattle, Washington, 23 November. She continued on to the U.S. East Coast 17 February 1946 via the Panama Canal and Puerto Rico, docking at New York City 24 April.

Post-war decommissioning
Manderson Victory decommissioned 10 May 1946 and was returned to the War Shipping Administration (WSA) the same day. She entered the Maritime Commission National Defense Reserve Fleet at James River Group, Virginia, 17 October 1953.

In July 1966 Manderson Victory was leased under General Agency Agreement to Farrell Lines, Inc., New York, New York, for service as a freighter.

Honors and awards
Manderson Victory received one battle star for World War II service.

References
Citations

Bibliography
 
 NavSource Online: Service Ship Photo Archive - AK-230 Manderson Victory

Boulder Victory-class cargo ships
Ships built in Richmond, California
1944 ships
Ammunition ships of the United States Navy
World War II auxiliary ships of the United States
Hudson River Reserve Fleet
James River Reserve Fleet
SAI KZ X. The SAI KZ X was a light aircraft produced in Denmark for army co-operation duties in the early 1950s.

Design and development
The KZ X was a strut-braced, high-wing, two seat military observation monoplane developed from the KZ VII with a more powerful,, Continental C145 engine.

Deliveries to the Danish Army began in 1952 but by the summer of that year two had already crashed. The investigations of these crashes, attributed to failure of the wooden rudder, were conducted with technical assistance from Britain's Royal Aircraft Establishment but no underlying defect in the aircraft design was uncovered. The prototype was modified with a steel-framed rudder as the KZ X Mk.2 but the KZ X was returned to service. When two more crashes took place in 1954 the type was finally withdrawn then scrapped in 1960, leaving the prototype as the only surviving example. It is now in the Danmarks Flymuseum, active again in 2009 after restoration.

Operators

Royal Danish Army

Specifications

References

See also

 
 

1950s Danish military reconnaissance aircraft
Skandinavisk Aero Industri aircraft
Single-engined tractor aircraft
Aircraft first flown in 1951
AAC Angel. 

The Angel Aircraft Corporation Model 44 Angel is a twin-engine STOL utility aircraft produced in the United States since the mid-1990s.  Designed by Carl Mortenson and The King's Engineering Fellowship to be well-suited for missionary work from remote locations around the world, it is a low-wing cantilever monoplane with a retractable tricycle undercarriage and eight seats.  The design is largely conventional, with the exception that the engine nacelles are mounted on top of the wings in a pusher configuration.  Construction is aluminum throughout the airframe.

Design work began at the home of designer Carl Mortenson in 1972, with work on the prototype beginning in 1977, also from the designer's home.  In 1980 the project was moved to the municipal airport in Orange City, Iowa.  The first flight took place on 13 January 1984, and FAA type certification was achieved on 20 October 1992.  Angel Aircraft Corporation manufactures the aircraft under a license agreement with The King's Engineering Fellowship.

Four aircraft were placed between 1984 and 2008 but Hubei Taihang Xinghe Aircraft Manufacturing of China acquired a production license in 2013.
The first Chinese example was substantially completed in May 2016 before the Hubei local government financed a manufacturing plant. The Model 44 was approved on 17 July 2015, by the Chinese National Civil Aviation Administration.

Crashes
On 14 December 2019, an Angel 44 crashed into a field of corn near the airport at Mareeba, Queensland, Australia at 11.15am during what is believed to be a training flight. The aircraft has been said to be the only example of the type in Australia. The pilot, William Scott-Bloxam (73) and male passenger (63) died at the scene of the incident.

Specifications

See also

References

External links

 
 Angel brochure on manufacturer's website
 Type Certificate Data Sheet A2WI

1980s United States civil utility aircraft
Engine-over-wing aircraft
Twin-engined pusher aircraft
Low-wing aircraft
Aircraft first flown in 1984
STOL aircraft
Drysdallite. Drysdallite is a rare molybdenum selenium sulfide mineral with formula Mo(Se,S)2. It crystallizes in the hexagonal system as small pyramidal crystals or in cleavable masses. It is an opaque metallic mineral with a Mohs hardness of 1 to 1.5 and a specific gravity of 6.25. Like molybdenite it is pliable with perfect cleavage.

It was first described in 1973 for an occurrence in an oxidized uranium deposit near Solwezi, Zambia. It was named for Alan Roy Drysdall, the director of the Zambian geological survey.

References

 Handbook of Mineralogy
 Webmineral
 Mindat

Molybdenum minerals
Sulfide minerals
Selenide minerals
Hexagonal minerals
Minerals in space group 194
Acta Biomaterialia. Acta Biomaterialia is a monthly peer-reviewed scientific journal published by Elsevier. It is published on behalf of Acta Materialia, Inc., and is sponsored by ASM International and The Minerals, Metals & Materials Society. The journal was established in January 2005. The editor-in-chief is W.R. Wagner (University of Pittsburgh). The journal covers research in biomaterials science, including the interrelationship of biomaterial structure and function from macroscale to nanoscale. Topical coverage includes biomedical and biocompatible materials.

Formats of publication include original research reports, review papers, and rapid communications ("letters").

Abstracting and indexing
Acta Biomaterialia is abstracted and indexed in:
 Chemical Abstracts Service
 EMBASE
 EMBiology
 Elsevier BIOBASE
 MEDLINE/PubMed
 Materials Science Citation Index
 Science Citation Index Expanded
 Scopus
According to the Journal Citation Reports, the journal has a 2022 impact factor of 9.7.

References

External links 

Biochemistry journals
Elsevier academic journals
Materials science journals
Monthly journals
Academic journals established in 2005
Biotechnology journals
English-language journals
Academic journals associated with learned and professional societies
Vapor-compression desalination. Vapor-compression desalination (VC) refers to a distillation process where the evaporation of sea or saline water is obtained by the application of heat delivered by compressed vapor.

Overview
Since compression of the vapor increases both the pressure and temperature of the vapor, it is possible to use the latent heat rejected during condensation to generate additional vapor. The effect of compressing water vapor can be done by two methods.

The first method utilizes an ejector system motivated by steam at manometric pressure from an external source in order to recycle vapor from the desalination process. The form is designated ejectocompression or thermocompression.

Using the second method, water vapor is compressed by means of a mechanical device, electrically driven in most cases. This form is designated mechanical vapor compression (MVC). The MVC process comprises two different versions: vapor compression (VC) and vacuum vapor compression (VVC). VC designates those systems in which the evaporation effect takes place at manometric pressure, and VVC the systems in which evaporation takes place at sub-atmospheric pressures (under vacuum).

The compression is mechanically powered by something such as a compression turbine. As vapor is generated, it is passed over to a heat exchanging condenser which returns the vapor to water. The resulting fresh water is moved to storage while the heat removed during condensation is transmitted to the remaining feedstock.

The VVC process is the more efficient distillation process available in the market today in terms of energy consumption and water recovery ratio. As the system is electrically driven, it is considered a "clean" process, it is highly reliable and simple to operate and maintain.

See also 
 Vapor-compression evaporation
 Marine vapor-compression distillers

References 

 AN ADVANCED VAPOR-COMPRESSION DESALINATION SYSTEM
 Vacuum vapour compression water makers for the oil and gas industry
Vacuum vapour compression water makers
 AN ADVANCED MECHANICAL VAPOR COMPRESSION DESALINATION with VVC SYSTEM in desalination and purfying water industry 

Evaporators
Water desalination
Mitsutaka Fujita. was a Japanese physicist. He proposed the edge state that is unique to 
graphene zigzag edges. Also, he theoretically pointed out the importance and peculiarity of nanoscale and edge shape effects in nanographene.  The theoretical concept of graphene nanoribbons was introduced by him and his research group to study the nanoscale effect of graphene. He was an associate professor at Tsukuba University, and died of a subarachnoid hemorrhage on March 18, 1998. His posthumous name is  in Japanese.

Awards
After his death, the original paper on graphene edge state and graphene nanoribbons was awarded the JPS Best Paper Award in March 2003 from the Physical Society of Japan.
JPS Best Paper award, Physical Society of Japan

Representative publications

See also
Graphite
Graphene oxide paper
Carbon nanotubes
Katsunori Wakabayashi

External links
 Google Scholar
Author Index All archive
Scientific Commons

1998 deaths
Japanese physicists
Japanese nanotechnologists
1959 births
Academic staff of the University of Tsukuba
Kyoto University alumni