Since the 1960s, composite airframes and quieter, more efficient engines have become available, and Concorde provided supersonic passenger service for more than two decades, but the most important lasting innovations have taken place in instrumentation and control.

Since the 1970s, the use of diesel engines in larger on-road and off-road vehicles in the USA increased.

Since the weight of the engine was so much less than on piston engined fighters, having two engines was no longer a handicap and one or two were used, depending on requirements.

Since the company's beginnings, Ferrari has been involved in motorsport, competing in a range of categories including Formula One and sports car racing through its Scuderia Ferrari sporting division as well as supplying cars and engines to other teams and for one make series.

Since the heat source that supplies thermal energy to the engine can thus be powered by virtually any kind of energy, heat engines are very versatile and have a wide range of applicability.

Since very few actual implementations of heat engines exactly match their underlying thermodynamic cycles, one could say that a thermodynamic cycle is an ideal case of a mechanical engine.

Since Id Software revealed their engine Id Tech 5, they call their engines " Id Tech ", followed by a version number.

Since the beginning of World War I in 1914, magneto-equipped aircraft engines have typically been dual-plugged, whereby each cylinder has two spark plugs, with each plug having a separate magneto system.

Since plug-ins and extensions both increase the utility of the original application, Mozilla uses the term " add-on " as an inclusive category of augmentation modules that consists of plug-ins, themes, and search engines.

Since atmospheric pressure reduces as the aircraft climbs, power drops as a function of altitude in normally aspirated engines.

Since then until the late 1990s 118 SPT engines completed their mission and some 50 continued to be operated.

Since some Web search engines base the importance of sites on the number of different sites linking to them, referrer-log spam may increase the search engine rankings of the spammer's sites.

Since the 1960s, composite airframes and quieter, more efficient engines have become available, and Concorde provided supersonic passenger service for more than two decades, but the most important lasting innovations have taken place in instrumentation and control.

Since then, gas turbine engines have been used as APUs in some tanks and as main powerplants in Soviet / Russian T-80s and U. S. M1 Abrams tanks, among others.

Since the ash has the consistency of ground glass it causes abrasion damage to moving parts such as engines.

Since the oil serves both as the engines lubricant and forms a vital part of the cooling system this ' anti leak ' system was especially important.

Since 1976, practical " glow " ignition four stroke model engines have been available on the market, ranging in size from 3. 5 cm³ upwards to 35 cm³ in single cylinder designs.

Since the engines did not cross the river, a roundhouse to service them was built north of town.

Since then, several groups have studied antimatter-catalyzed micro fission / fusion engines in the lab ( sometimes antiproton as opposed to antimatter ).

Since 2008, all engines have featured direct injection technology.

Since the turn of the 20th century, internal combustion engines have been the power source of choice.

Since these engines are fired from the point of liftoff into extra-atmospheric space flight, any sort of altitude compensation could dramatically improve their overall performance.

Since these engines typical need extra weight for traction purposes anyway the battery pack's weight is a negligible penalty.

Since the golden age of arcade video games, it became common for video game companies to develop in-house game engines for use with first-party software.

Since the death of Elissa Aalto the office has continued to operate as the Alvar Aalto Academy, giving advice on the restoration of Aalto buildings and organising the vast archive material.

Since AIFMD covers the entire EU, and individual countries have different rules for hedge fund marketing, the directive introduced a " passport " for hedge funds authorized in one EU country to operate throughout the EU.

Since M-theory is thought to operate in 11 dimensions this problem then becomes very difficult.

Since transmit data and receive data are separate circuits, the interface can operate in a full duplex manner, supporting concurrent data flow in both directions.

Since a few states lack intermediate appellate courts, the state supreme court may operate under " mandatory review ", in which it must hear all appeals from the trial courts.

Since Hurricane Katrina, Mississippi has removed the requirement that casinos on the Gulf Coast operate on barges and now allows them on land along the shoreline.

Since all opposition was banned within Turkmenistan, it was forced to form and operate from abroad.

Gigabyte TA7 thin client Since the clients are made from low-cost hardware with few moving parts, they can operate in more hostile environments than conventional computers.

Since the tube requires a vacuum to operate, convection cooling of the plate is not generally possible ( except in special applications where the anode forms a part of the vacuum envelope ; this is generally avoided due to the shock hazard from the anode voltage ).

Since the machine was designed to operate on large data sets, the design also dedicated considerable circuitry to I / O.

Since end-to-end protocols typically operate on the basis of larger information units, Frame Relay recommends that the network support the maximum value of at least 1600 octets in order to avoid the need for segmentation and reassembling by end-users.

Since the crucial function of a file server is storage, technology has been developed to operate multiple disk drives together as a team, forming a disk array.

Multiply by the switching frequency on the load capacitances to get the current used, and multiply by voltage again to get the characteristic switching power dissipated by a CMOS device:. Since most gates do not operate / switch at every clock cycle, they are often accompanied by a factor, called the activity factor.

Since light pens operate by detecting light emitted by the screen phosphors, some nonzero intensity level must be present at the coordinate position to be selected, otherwise the pen won't be triggered.

Since LRT systems can operate using existing streets, they can often avoid the cost of expensive grade-separated subway and elevated segments that would be required with RRT.

Since SSTV systems operate on voice frequencies, amateurs use it on shortwave ( also known as HF by amateur radio operators ), VHF and UHF radio.

Since the lamp filament can operate at a higher temperature than a non-halogen lamp, the spectrum is shifted toward blue, producing light with a higher effective color temperature.

Since the beginning of the Medicare program, CMS has contracted with private companies to operate as intermediaries between the government and medical providers.

Since single cycle ( gas turbine only ) power plants are less efficient than combined cycle plants, they are usually used as peaking power plants, which operate anywhere from several hours per day to a few dozen hours per year — depending on the electricity demand and the generating capacity of the region.

Since The Voyage Home was the first Star Trek film to show the operations at Starfleet Command, Bennett and Nimoy visited NASA's Jet Propulsion Laboratory to learn how a real deep space command center might look and operate.

Since 1985, the United States has selected the foundation to operate the U. S. Pavilion of the Venice Biennale, an exhibition held every other summer.

Since 1985, the United States has selected the foundation to operate the U. S. Pavilion of the Venice Biennale, an exhibition held every other summer.

Since infrared ( IR ) remote controls use light, they require line of sight to operate the destination device.

Since discontinuing all scheduled service in May 2008, North American Airlines continues to operate today as solely a charter airline.