omniomni/omni-engineering huggingface dataset:
Ister-class frigate. The Ister-class frigates were a group of five 36-gun screw frigates ordered for the Royal Navy in the early 1860s. Four of the ships were cancelled after they were laid down and  was the only ship completed.

Description
Endymion was  long, with a beam of , and a draught of . She was assessed as 2,486 tons Builder's Old Measurement and displaced 3,200 tons. She was fitted with 36 guns and had a complement of 450. Propulsion was by a 500 nhp steam engine, which was built by Napier & Sons, Glasgow. The engine drove a single screw propeller of  diameter and  pitch. The propeller was  long, and the tips of the blades were  beneath the surface of the water.

She was designed to take 36 guns, which were intended to comprise four 100 pounder, rifled muzzle-loading guns (weight 125 Cwt/6,350 kg each), fourteen 8-inch guns (65 Cwt/3,302 kg each), located on the maindeck; and nine 110-pounder breech-loading guns (82 Cwt/6,166 kg each) located on the upper deck. In August, it was reported that Endymion was then being fitted with three 110-pounder Armstrong guns, four 100-pounder Somerset guns and fourteen 8-inch guns.

Service

All five of the ships in the class were laid down in 1860–61 in various royal dockyards, but HMS Blonde and HMS Astrea were cancelled on 12 December 1863. HMS Dartmouth and HMS Ister were cancelled a year later, on 16 December 1864. None of these four ships were launched before they were cancelled.

On 1 February 1862, construction of Endymion was suspended on the orders of the Admiralty, although the Admiralty later decided that she would be completed. Construction restarted on 7 February 1864. Endymion was the last wooden frigate built at Deptford Dockyard. She was commissioned in 1866 and spent much of her service based at Malta. In 1869–70 she sailed around the world as part of a Flying Squadron. Endymion then served as a guard ship at Hull until 1879 and was lent to the Metropolitan Asylums Board in 1881 for use as an administration and hospital ship. She was sold out of service in 1885, and served as an administration ship until 1904. Endymion was sold in December 1904 and broken up in 1905.

Footnotes

References

Frigate classes
Frigates of the Royal Navy
Ship classes of the Royal Navy
Victorian-era frigates of the United Kingdom
Schleicher Condor. The Schleicher Condor, also referred to as the Dittmar Condor,  is a series of German high-wing, single and two-seat, gull winged, gliders that were designed by Heini Dittmar in the 1930s, produced in small quantities before the Second World War, produced again between 1952 and 1955 by Alexander Schleicher GmbH & Co and also by Ferdinand Schmetz.

Design and development
The first Condor I was introduced in 1932. The aircraft was further developed into the Condor II and the IIA, which replaced strut bracing with a cantilever wing. Following the Second World War the two-seat Condor IV first flew in 1951 and was put into series production by Schleicher.

The Condor series was built from wood, with the wooden-framed wing covered in doped aircraft fabric. The Condor IV has a  span wing that employs a Goettingen 532 airfoil at the wing root, changing to a NACA 0012 section at the wing tip. The wings have balanced DFS-style dive brakes for glidepath control. The horizontal stabilizer is of an all-flying tail design. The landing gear was originally a dolly for take-off, with the aircraft landing on a fixed skid, although at least one was modified to use a fixed monowheel.

Some sources state that there were a total of 18 Condors constructed, while one other says that the total number is unknown, but includes at least 18 Condor IVs built under licence in Argentina.

At least one Condor was converted to a motorglider.

Operational history
The Condor design was a record-setter from its earliest flights in the 1930s. In 1935 one was flown to a new world distance record of . Condor IVs were flown in the 1952 World Gliding Championships held in Madrid, Spain. During that contest Ernst-Günther Haase set a new world record in the multi-place category for speed over a  triangle of .

Hans Luenger imported one Condor IV-2 to the United States in 1952. After the wooden fuselage was damaged he built a new design replacement from welded steel tube and covered it with doped fabric. The new fuselage included a fixed wheel for landing gear. This aircraft was removed from the US Federal Aviation Administration registry in 2007.

Variants
Condor I
Initial strut-braced, single-seat version introduced in 1932.
Condor II
Improved strut-braced, single-seat version.
Condor IIB
Improved cantilever wing, single-seat version.
Condor IV
Post war two-seat version with a cantilever wing.
Dittmar-Reidel Motor-Condor Peter Reidel's Condor La Falda was modified to have a strut-mounted power-egg, containing a Kroeber M4 driving a pusher propeller, attached to the centre-section. The intention was for the power-egg to be carried to the glider by the retrieve crew, fitted to the glider and the pilot to fly the glider back to home base without the need to de-rig and transport by trailer. In practice it was found to be impractical due to the complexity of the mounting, as well as time and effort required to mount the power-egg.

Aircraft on display

Deutsches Museum Flugwerft Schleissheim

Specifications (Condor IV-2)

See also

References

External links

1930s German sailplanes
Schleicher aircraft
Aircraft first flown in 1932
High-wing aircraft
Gull-wing aircraft
Mahatma Gandhi Kalwakurthy lift irrigation scheme. Mahatma Gandhi Kalwakurthy Lift Irrigation Scheme (MGKLIS) is a lift irrigation project on River Krishna located in Mahbubnagar district in the Indian state of Telangana. The lift canal starts from the backwaters of Srisailam Dam near Kollapur. The gravity driven, 100 kilometer-long canal provides cultivation for nearly in 300 villages located in constituencies of Kollapur, Wanaparthy, Nagarkurnool, Kalwakurthy, Jadcherla, and Achampet.

History
The foundation stone was laid in 1984. In 2014 the work started with a budget of ₹2100 crores. It was completed in October 2017, three decades later.

Ayacut
The original design for the project was 20 TMC water capacity, later increased to 40 TMC. This project provides water to the most drought-prone areas in Mahbubnagar. The water is sourced from Krishna river, by lifting water 300 meters above river level and channeling it into the reservoir.

Achampet Branch Canal will be lengthened by 14 km, creating an additional ayacut of 15,000 acres (10,000 acres in Uppunuthala mandal and 5,000 acre) in Achampet mandal.

Reservoirs
Around 51 balancing reservoirs with 20 TMC water capacity are proposed under MGKLIS, scheduled to be completed by June 2019.

The Buddaram Peddavagu Lake was proposed to be converted into a reservoir, and was completed in June 2019. With this reservoir, the lands under Wanaparthy district will get water for irrigation, ensuring continuous water flow.

Water lifting
This project has three lifts, in Yellur (Kollapur mandal), in Jonnalaboguda village, and in Gudipally village. Reservoirs were to be constructed to store the water lifted from the river. This project serves water through canals which fill the lakes in five constituencies of erstwhile Mahabubnagar district.

Pumps
ABB partnered for industrial-strength water pumping technology with Andritz AG, to deploy five of its high-capacity 30-megawatt (MW), 11-kilovolt (kV) motors, each capable of pumping 23,000 litres per second. ABB also supplied substation equipment, transformers, and a digitally-enabled supervisory control and data acquisition (SCADA) monitoring system.

References

Irrigation in Telangana
Mahbubnagar district
Lift irrigation schemes
Srisailam Left Bank Canal. Alimineti Madhava Reddy Project earlier known as Srisailam Left Bank Canal Project is an irrigation project located in Nalgonda district in Telangana, India.

History
This Project has two following alternatives
 Lift scheme from foreshore of Nagarjuna Sagar Reservoir: This scheme is completed by 2004 and 300,000 acres of land is under irrigation.
 Gravity scheme from foreshore of Srisailam reservoir, through two tunnels: This alternative to eliminate water pumping was taken up in 2004 and was scheduled for completion in 2010 but was delayed inordinately.

Project
Water is fed from the Puttamgandi foreshore pump house located at  in to the nearby Puttamgandi tank from Nagarjuna Sagar reservoir. The pump house has ultimate capacity of five pumps each of 600 cusecs pumping capacity. Water is supplied from the Puttamgandi tank by gravity to the entire irrigated area of the project via balancing reservoir called Akkampalli reservoir with 1.5 tmcft storage capacity. From Akkampalli reservoir, water is also pumped to the Hyderabad city for its water needs.

To eliminate the need of expensive water pumping and facilitate water flow by gravity to the Akkampalli reservoir, it is envisaged to bring water from Srisailam reservoir to the plains of Nalgonda through two tunnels of a total length of . This scheme is known as Srisailam Left Bank Canal (SLBC) project.

Expansion of Puttamgandi tank
Puttamgandi tank water storage can be enhanced significantly by enlarging its water area and water depth by constructing earth bunds taking advantage of nearby continuous hillocks on three sides of the tank. The enhanced water storage capacity would serve as 100% reliable and assured water source for water needs of Hyderabad city without depending on water from Srisailam and  Nagarjuna Sagar reservoirs during drought years.

References

Irrigation in Telangana
Nalgonda district
Schleicher K7. The Schleicher K7 Rhönadler is a West German high-wing, two-seat, glider that was designed by Rudolf Kaiser and produced by Alexander Schleicher GmbH & Co.

Often referred to as the Ka-7 or K-7, the US Federal Aviation Administration type certificate officially designates it as the K7.

Design and development
The K7 was intended as a two-place trainer with good performance, a rare combination in trainers of its time.

The K7 is constructed with a welded steel tube fuselage, covered in doped aircraft fabric covering. The wing is a wooden structure with a doped fabric covering and employs a Goettingen 533 (16%) airfoil at the wing root, transitioning to a Goettingen 533 (14%) section at the wing tip. The wing features powerful dive brakes. The landing gear is a fixed monowheel. The earlier Ka-2 variant has a plywood monocoque fuselage.

After 550 had been built, the K7 was superseded in production by the Schleicher ASK 13.

The K7 can be converted into a K7/13 with a conversion kit to lower the wing to the mid-wing position and installation of a one-piece canopy, rendering the aircraft similar to the ASK-13.

Operational history
A K7 was flown to a new world multi-place glider speed record for flight around a  triangle of  in 1964 in South Africa.

A K7 was assigned to 2 Wing AAFC and used to train Australian Air Force Cadets 228 Squadron at Bundaberg from 2007 to 2014.

Variants
Ka-2
Early version with a plywood monocoque fuselage
K7
Main production version with a steel tube fuselage.
K7/13
K7 converted to a mid-wing arrangement, plus a single piece canopy, to resemble an AS-K 13

Specifications (K7)

See also

Notes

References

External links

1960s German sailplanes
Schleicher aircraft
High-wing aircraft
Aircraft first flown in 1960
Aeroprakt A-24 Viking. The Aeroprakt A-24 Viking is a Ukrainian three-seat light-sport amphibian designed for home building and marketed in kit form by Aeroprakt.

Design and development
The Viking is a strut-braced high-wing monoplane amphibian. A Rotax 912ULS piston engine driving a tractor propeller is mounted on the leading edge of the wing above the cabin. The enclosed cabin has side-by-side seating with an additional single seat behind, the rear seat can be removed to fit luggage. It has a retractable landing gear with the main wheels moving above the water line on the fuselage side rather than retracting into the fuselage.

The design uses the same airfoil as the Antonov An-2 biplane, a TsAGI R-11 (14%).

No regular production was ongoing in 2015 and the aircraft was at that time only produced on request.

Specifications

See also

References

Notes

External links 

 

2000s Ukrainian ultralight aircraft
Viking
Amphibious aircraft
High-wing aircraft
Single-engined tractor aircraft
Flying boats
Hanoi Architectural University. Hanoi Architectural University (also known as Hanoi University of Architecture; ) is the flagship university in architecture, planning, and civil engineering education and research in Vietnam. It was established in 1969 under the administration of Vietnam Ministry of Architecture (now the Vietnam Ministry of Construction). The school's predecessor was the Architecture Faculty of Hanoi University of Construction. Hanoi Architectural University is considered one of the best and largest universities in architecture, urban planning, and civil engineering in Vietnam. The school offers five-year bachelor's degrees (B.Eng. and B.Arch.), two-year master's degrees, and PhD degrees.

Organizations

Schools
School of Architecture
School of Urban and Regional Planning
School of Structural and Construction Engineering
School of Urban Infrastructure and Environmental Engineering
School of Urban Construction Management
School of Industrial Fine Arts

Departments 
Department of Marxist - Leninist Philosophy
Department of Postgraduate
Department of In-service Training

Research Institutes
 Institute of Tropical Architecture
 Center for Urban Infrastructure Technology 
 Center for Urban Research and Education
 Center for Construction and Project Management
 Center for Hydraulic Research
 Center for Environmental Studies

Other Centers
 Office of Consultancy and Construction Technology
 Construction and Urban Development, Inc.
 Library Information Center
 Service Centers

Alumni 

 Nguyễn Lân Thắng – blogger and human rights activist.

References

Trường Đại học Kiến trúc Hà Nội

External links
 Official website

Architecture schools in Vietnam
Universities in Hanoi
Technical universities and colleges in Vietnam
Engineering universities and colleges in Vietnam
Cloudcraft Phantom. The Cloudcraft Phantom was a glider designed in the United Kingdom in 1931 to make long flights. It set an unofficial duration British record but vandalism prevented a cross-Channel attempt.

Design and development
The Phantom was a single-seat, clean, high-performance glider designed for Mr Percy Michelson with distance records and a cross-channel flight in mind. It was an all-wood aircraft, built of spruce and plywood. The wing had a single spruce spar with stressed ply to the leading edge forming a torsion box. At the time, the choice of the biconvex R.A.F. 34 airfoil was unusual, the concave/convex Göttingen forms being generally used. The wing was high mounted on a long, shallow pylon just behind the open cockpit, braced with a single lift strut on each side.

Its tailplane was low mounted and the rudder rounded and generous, mounted on a narrow fin. It landed on a long skid reaching from the nose to well behind the wing trailing edge.

The Phantom first flew on 11 June 1931.

Operational history

The Phantom gained its Certificate of Airworthiness in November 1931. Advertisements from July 1931 show that Cloudcraft hoped to sell the Phantom equipped as both Standard and Special models but the company closed for business at the end of 1931, so only was built.

One of the Phantom's earliest outings was to the glider demonstration at Bunster Hill, overlooking Ilam, Staffordshire, on 27–28 June 1931, one of the Lyons Tea meetings.  Unfortunately, some of the ply became detached near the cockpit and no flights were made. The month after its maiden flight, the repaired Phantom demonstrated its intended long-duration ability by unofficially breaking the British glider duration record with a flight of over 4¼ hours. The pilot was "Mungo" Buxton. It was the first time that the time set by Maneyrol in the Peyret Tandem at the British Glider Competition nine years earlier had been bettered by a British pilot and aircraft in Britain.

Its owner, Michelson, intended to try for the Cellon prize for an unpowered cross-English Channel flight but the aircraft was seriously damaged by vandals on the cliffs near Dover. He could not afford to have it repaired and put it up for sale in 1932. The remains were bought by the Bradford and County Gliding Club in April 1933. It seems they wanted it for its instruments and launch rope, for the Phantom was too lightly built for club work. The remains ended up at the Slingsby Aviation works at Kirbymoorside; they were there in 1938 but may have been burned during World War II.

Specifications

References

External links

R.A.F. 34 airfoil

1930s British sailplanes
Aircraft first flown in 1931
Kinetic inductance detector. The kinetic inductance detector (KID) — also known as a microwave kinetic inductance detector (MKID) — is a type of superconducting photon detector capable of counting single photons whilst simultaneously measuring their energy and arrival time to high precision. They were first developed by scientists at the California Institute of Technology and the Jet Propulsion Laboratory in 2003. These devices operate at cryogenic temperatures, typically below 1 kelvin. They are being developed for high-sensitivity astronomical detection for frequencies ranging from the far-infrared to X-rays.

Principle of operation
Photons incident on a strip of superconducting material break Cooper pairs and create excess quasiparticles. The kinetic inductance of the superconducting strip is inversely proportional to the density of Cooper pairs, and thus the kinetic inductance increases upon photon absorption. This inductance is combined with a capacitor to form a microwave resonator whose resonant frequency changes with the absorption of photons. This resonator-based readout is useful for developing large-format detector arrays, as each KID can be addressed by a single microwave tone and many detectors can be measured using a single broadband microwave channel, a technique known as frequency-division multiplexing.

Applications
KIDs are being developed for a range of astronomy applications, including millimeter and submillimeter wavelength detection
at the Caltech Submillimeter Observatory, the Atacama Pathfinder Experiment (APEX) on the Llano de Chajnantor Observatory, the CCAT Observatory, the Large Millimeter Telescope, and the IRAM 30-m telescope. They are also being developed for optical and near-infrared detection at the Palomar Observatory. KIDs have also flown on two balloon-borne telescopes, OLIMPO in 2018 and BLAST-TNG in 2020. They are also foreseen for the spectrometers of the planned PRobe far-Infrared Mission for Astrophysics (PRIMA) telescope, which NASA selected as one of two potential future space telescopes. KIDs have also gained popularity as a more compact, lower cost, and less complex alternative to transition edge sensors.

See also 
Kinetic inductance
Cryogenic particle detectors

References

External links 
 SRON website on kinetic inductance detectors
 Research group of Prof. B. Mazin at UC Santa Barbara 
 YouTube video on kinetic inductance from MIT
 

Superconducting detectors
Radiometry
Sensors
Particle detectors
Tris(dimethylamino)aluminium dimer. Tris(dimethylamino)aluminium dimer, formally bis(μ-dimethylamino)tetrakis(dimethylamino)dialuminium, is an amide complex of aluminium. This compound may be used as a precursor to other aluminium complexes.

Commercially available, this compound may be prepared from lithium dimethylamide and aluminium trichloride.

References

Aluminium complexes
Metal amides
Dimers (chemistry)
Human-powered watercraft. Human-powered watercraft are watercraft propelled only by human power, instead of being propelled by wind power (via one or more sails) or an engine.

The three main methods of exerting human power are:
 directly from the hands or feet, sometimes aided by swimfins;
 through hand-operated oars, paddles, or poles, or;
 through the feet with pedals, crankset or treadle.
While most human-powered watercraft use buoyancy to maintain their position relative to the surface of the water, a few, such as human-powered hydrofoils and human-powered submarines, use hydrofoils, either alone or in addition to buoyancy.

Oared craft

Oars are held at one end, have a blade on the other end, and pivot in between in oarlocks.

Oared craft include:
 Racing shell

Using oars in pairs, with one hand on each oar, is two-oar sculling. The oars may also be called sculls.

Two-oared sculled craft include:
 Adirondack guideboat
 Banks dory, Gloucester dory, and McKenzie River dory
 Dinghy
 Sampans rowed by foot in Ninh Bình Province of northern Vietnam.
 Scull, Single scull, Double scull, Quad scull, and Octuple scull
 Skiff
 Row boat

Using oars individually, with both hands on a single oar, is sweep or sweep-oar rowing. In this case the rowers are usually paired so that there is an oar on each side of the boat.

Sweep-oared craft include:
 Coxless pair, Coxed pair, Coxless four, Coxed four, and Eight
 Galley, Dromon, Trainera, and Trireme

Moving a single stern-mounted oar from side to side, while changing the angle of the blade so as to generate forward thrust on both strokes, is single-oar sculling.

Single-oar sculled craft include:
 Gondola
 Sampan
 Sandolo

Paddlecraft

Paddled watercraft, or paddlecraft, uses one or more handheld paddles, each with a widened blade on one or both ends, to push water and propel the watercraft.. Commonly seen paddlecrafts include:
 Canoe, Outrigger canoe, Hasamibako bune, Umiak, Waka, Pirogue, Shikara, Dragon boat, and Dugout
 Kayak, Sea kayak, Flyak, and Baidarka
 Coracle, Tarai-bune
 Paddleboard

Pedaled craft

Pedals are attached to a crank and propelled in circles, or to a treadle and reciprocated, with the feet. The collected power is then transferred to the water with a paddle wheel, flippers, or to the air or water with a propeller.

Pedaled craft include:
 Amphibious cycle
 Hydrocycle
 Pedal-powered kayak
Pedal-powered submersible or midget submarine
 Pedal-powered hydrofoil
 Pedalo

Poled craft
A pole is held with both hands and used to push against the bottom.

Poled craft include:
 Punt
 Raft
 Makoro

Other types

Other types of human-powered watercraft include:
 Float tube
 Hand-cranked submarine (disambiguation) 
 Hand-operated cable ferry
 Bodyboarding

Gallery

See also
 Ocean rowing
 Fiann Paul

References

 
Boat types
Ethylferrocene. Ethylferrocene is an organoiron compound with the formula . It is a derivative of ferrocene containing an ethyl group on one of the two cyclopentadienyl rings.  Relative to the properties of ferrocene, its melting point is lower and its solubility of the compound in hydrocarbon solvents is improved.

Use and preparation
It was once used as an additive in rocket propellant, to promote the burning rate. It can be synthesized by the Clemmensen reduction of acetylferrocene.

References

Ferrocenes