During the 1960s the use of manual sign language grew greatly, but it was not until the 1980s that AAC began to emerge as an area in its own right.

During the 1980s many of the industries left Aarau completely.

During the 1980s and 1990s, she became one of the first CCM artists to cross over into mainstream pop on the heels of her successful albums Unguarded and Heart in Motion, the latter of which included the No. 1 single " Baby Baby ".

During the 1980s, Grant was also a backup singer for Bill Gaither.

* During the 1980s, the block of 16th Street NW between L and M streets, in front of the Soviet embassy, in Washington, D. C. was renamed " Andrei Sakharov Place " as a form of protest against his 1980 arrest and detention.

During the late 1980s and early 1990s, most BBSes used ANSI to make elaborate welcome screens, and colorized menus, and thus, ANSI support was a sought-after feature in terminal client programs.

During the final year of communist Hungary in the late 1980s, the Hungarian government, along with his two sons, Béla III and Péter, requested that his remains be exhumed and transferred back to Budapest for burial, where Hungary arranged a state funeral for him on July 7, 1988.

During the late 1970s and early 1980s, the site hosted Creative Time's landmark Art on the Beach sculpture exhibitions.

During the 1980s, a total of 13 buildings were constructed.

During the 1980s new staff buildings were built close to the castle.

During the 1980s, The Beano ran a ' Readers ' Request ' feature where readers could request for a particular comic strip to feature in the Beano.

During the 1980s, several thrash metal bands formed a prototype for black metal.

During a rise of " retro " games in the late 1980s and early 1990s, Steve Jackson Games entered negotiations with Dennis Sustare and Scott Robinson, the current owners of the Bunnies & Burrows copyright, to publish an official GURPS supplement.

During the 1980s, Arab opinion on the Chadian-Libyan conflict over the Aozou Strip was divided.

During the 1980s and 1990s, cognitive and behavioral techniques were merged into cognitive behavioral therapy.

During the 1970s and 1980s it was also used to test the ability of containers of radioactive material to withstand impacts and other accidents.

During the 1970s and 1980s, the Bengals were a perennial playoff contender and they won AFC championships in and, but lost Super Bowls XVI and XXIII to the San Francisco 49ers.

During the 1980s and 1990s there was a Central Advisory Commission established by Deng Xiaoping which consisted of senior retired leaders, but with their death this has been abolished since 1992.

During the 1980s, CHOGMs were dominated by calls for the Commonwealth to impose sanctions on South Africa to pressure the country to end apartheid.

During the 1980s, mandated regulations not unlike Public, educational, and government access ( PEG ) channels created the beginning of the Cable-originated live television program that evolved into what we know today in 2012 where many cable networks provide live cable-only broadcasts of many varieties, cable-only produced television movies, and miniseries.

During the 1980s, Allan Bromley, an associate professor at the University of Sydney, Australia, studied Babbage's original drawings for the Difference and Analytical Engines at the Science Museum library in London.

During the 1980s, the attention of the Agency was centered on information processing and aircraft-related programs, including the National Aerospace Plane ( NASP ) or Hypersonic Research Program.

During one game in the 1980s, Hamilton Tiger-Cats wide receiver Earl Winfield was unable to field a punt properly ; in frustration, he kicked the ball out of bounds.

During this decade and the one that followed, Urbina and his archrival, García Moreno, would define the dichotomy — between Liberals from Guayaquil and Conservatives from Quito — that remained the major sphere of political struggle in Ecuador in the 1980s.

During the 1980s, gas sales accounted for $ 300 million a year in export revenues ( 56 % of the total ).

During the Vietnam War, between 1962 and 1971, the United States military sprayed nearly of material containing chemical herbicides and defoliants mixed with jet fuel in Vietnam, eastern Laos and parts of Cambodia, as part of Operation Ranch Hand.

During operation, fuel is placed in or on the hearth and ignited.

Stephan Wrage, managing director of SkySails GmbH announced: " During the next few months we will finally be able to prove that our technology works in practice and significantly reduces fuel consumption and emissions.

During the compression process, pressure, temperature and the density of the fuel mixture increases.

During the fuel crisis of the 1970s, Saab-Valmet developed and series-produced the Saab 99 Petro that ran on kerosene, turpentine or gasoline.

During the 1980s, North American minivans generally had four-cylinder engines and were slow and under-powered when compared with sport utility vehicles, but were more fuel efficient.

During and immediately after World War II, with shortages of fuel and limitations on audiences and available personnel, large jazz bands were less economical and tended to be replaced by smaller combos, using guitars, bass and drums.

Typically, this system works as follows: During the initial high-impulse orbit-raising maneuvers, the system operates in a bipropellant fashion, providing high thrust at high efficiency ; when it arrives on orbit, it closes off either the fuel or oxidizer, and conducts the remainder of its mission in a simple, predictable monopropellant

During the war, troop movements and restrictions on automobile fuel generated a sixfold increase in passenger traffic from the low point of the Great Depression.

( Wooden Boat Forum ) During the war, both Elco and Higgins came up with stepped hull designs which achieved significant increases in top speed, (" ElcoPlane " & " Higgins Hellcat ") but the Navy rejected them for full production due to their increased fuel consumption and other considerations.

During its sea trials Murdoch carried out experiments on The Caledonia to measure the effect on fuel consumption and speed on changes in the depth of the paddles and whether one or both engines was used.

During this post-war period, the Beetle had superior performance in its category with a top speed of and 0 – 100 km / h ( 0 – 60 mph ) in 27. 5 seconds with fuel consumption of 6. 7 l / 100 km ( 36 mpg ) for the standard engine.

During the Vietnam War, a heavy rubber bladder in which aviation fuel or POL ( petroleum, oil, and lubricants ) was transported was known as a blivet, as was anything which, once unpacked, could not be replaced in its container.

During the speech they show a scene of one of the first commercial hydrogen fuel cell systems developed by Perry Energy Systems.

During its modification, the aircraft had most of the cabin windows blanked out and had specially fitted fuselage fuel tanks.

During this time period the 301st flew 443 Combat Sorties refueling 936 coalition aircraft, and transferring 33. 5 Million pounds of fuel.

During the 1930s solid fuel rockets were under development in the Soviet Union and Britain.

During the Roman period the district became a pottery centre due to the plentiful supply of gault clay, oak woodlands for fuel, and good communications via the Harrow Way and the nearby Roman road from Silchester to Chichester.

During the compression cycle of a compressed charge internal combustion engine the temperature of the fuel air mixture rises as described by Charles's law solely due to the compression of the gases.

During the normal operation of the engine as the fuel mixture is being compressed an electric arc is created to ignite the fuel.

During World War II in Britain plants were built in the form of trailers for towing behind commercial vehicles, especially buses, to supply gas as a replacement for petrol ( gasoline ) fuel.

During the storm the tanker split in half, releasing more than 2000 tonnes of fuel oil.

During the nuclear reaction inside a reactor, the fissile isotopes in nuclear fuel are consumed, producing more and more fission products, most of which are considered radioactive waste.