Some engines also use cast iron crankshafts for low output versions while the more expensive high output version use forged steel.

Some 19th-century or earlier experimental engines used external flames, exposed by valves, for ignition, but this becomes less attractive with increasing compression.

Some layout engines such as Trident / MSHTML and Presto are associated primarily or exclusively with a particular browser such as Internet Explorer and Opera respectively.

Some engines convert heat from noncombustive processes into mechanical work, for example a nuclear power plant uses the heat from the nuclear reaction to produce steam and drive a steam engine, or a gas turbine in a rocket engine may be driven by decomposing hydrogen peroxide.

Some engines ( air or water cooled ) also have an oil cooler.

" Some unusual engines ", 1975 The Institution of Mechanical Engineers, London.

Some specialised search engines such as Google Scholar offer a way to facilitate searching for academic resources such as journal articles and research papers.

Some aviation engines as well as some early luxury cars have had dual-plugged systems with one set of plugs fired by a magneto, and the other set wired to a coil, dynamo, and battery circuit.

Some real-time software 3D engines based on ray tracing have been developed by hobbyist demo programmers since the late 1990s.

Some search engines apply improvements to search queries to increase the likelihood of providing a quality set of items through a process known as query expansion.

Some SSTO vehicles use the same engine for all altitudes, which is a problem for traditional engines with a bell-shaped nozzle.

Some SSTO vehicles simply use very high pressure engines which permit high ratios to be used from ground level.

Some designs for SSTO attempt to use airbreathing jet engines that collect oxidiser and reaction mass from the atmosphere to reduce the take-off weight of the vehicle.

Some commercial aircraft with turboprop engines include the Bombardier Dash 8, ATR 42, ATR 72, BAe Jetstream 31, Embraer EMB 120 Brasilia, Fairchild Swearingen Metroliner, Saab 340 and 2000, Xian MA60, Xian MA600, and Xian MA700, Fokker 27, 50 and 60.

Some of the most popular and successful online sites or search engines of the 2000s included Google, Yahoo !, Wikipedia, Amazon, eBay, MySpace, Facebook, Twitter, and YouTube.

Some search engines, like Yahoo, use automated processes to detect soft 404s.

Some 100-200 engines completed their mission on Soviet and Russian satellites until the late 1990s.

Some are carbureted, usually the smaller engines.

Some of the Shuttle systems integrated in the simulation are the main propulsion system, main engines, solid rocket boosters, ground liquid hydrogen and liquid oxygen, external tank, flight controls, navigation, and avionics.

Some search engines give a higher rank to results where the keyword searched for appears in the URL.

Some search engines like Vivísimo try to group found web pages into automated categories in an attempt to show various genres the search hits might fit.

Some older biplane designs, such as the Grumman Ag Cat and the aforementioned An-2 ( in the form of the An-3 ) are available in upgraded versions with turboprop engines.

Some small propeller-driven aircraft engines still use the updraft carburetor design.

Some lower-compression piston engines can operate on unleaded mogas, and turbine engines and diesel engines — neither of which requires lead — are appearing on some newer light aircraft.

Some years ago Julian Huxley proposed to an audience made up of members of the British Association for the Advancement of Science that `` man's supernormal or extra-sensory faculties are ( now ) in the same case as were his mathematical faculties during the ice age ''.

Some of the Hetman's `` ideas '' were dream-ridden, vaguely imparted, and at times preposterous.

Some other good bills were lost in the shuffle and await future action.

Some time ago, however, Mr. Khrushchev decided that when bigger bombs were made, the Soviet Union would make them.

Some would say that they were not permitted to run their businesses only for profit ; ;

Some musicians were enthusiastic, some skeptical.

Some 80 reaction tubes from 13 manifold fillings were illuminated in the temperature range from 40 to 85-degrees in a further endeavor to determine the cause of the irreproducibility and to obtain information on the activation energy and the effect of light intensity.

Some of these were obviously filling from interlobular branches of the bronchial arteries while others were filling from direct hilar branches following along the pleural surface.

Some of the features of the top portions of Figure 1 and Figure 2 were mentioned in discussing Table 1.

Some of the sinusoids contained large numbers of nucleated red cells, and cells of the granulocytic series were found in small numbers.

Some of the small vessels were filled with fibrin thrombi, and there was extensive interstitial hemorrhage.

Some of them were then covered with a drop of Af in a moist chamber at 24-degrees for 30 - 40 minutes.

Some predictions had been made concerning factors R, N, I and Co on these inventories which appeared to be directly related to control and security aspects of personality functioning which were hypothesized as being of importance in differential Kohnstamm reactivity.

Some of the earliest recordings, made in the 1940's demonstrated that psychiatrists reacted immediately to anger and anxiety in the sound track, whereas written records of the same interview offered far fewer cues to therapy which -- if they were at all discernible in print -- were picked up only by the most skilled and sensitive experts.

Some of their figures of speech were colorful and expressive.

Some of the letters were pungently expressive.

Some of the choicest remarks made by soldiers in their letters were in disparagement of unpopular officers.

`` Some of the defendants strongly indicated they knew they were receiving stolen property.

Some of my fellow workers were grooming me for an office in the Socialist Party.

Some 30 spectators remained in the court during the day and were on hand to hear the verdict read.

Some schools were technical -- the Belgians needed carpenters and mechanics to help exploit the land, and trained many.

Some were clearly of Christian origin, among them the Great Awakening and other revivals which helped to make Christian liberty, Christian equality, and Christian fraternity the passion of the land.

Some of the in-person performers were Jack Teagarden, Gene Krupa, Bud Freeman, Pee Wee Russell, Johnny St. Cyr, Joe Sullivan, Red Allen, Lil Armstrong, Blossom Seeley.