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 ( 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 engines were equipped with a switch that cut out only some rather than all of the cylinders to ensure that the engine kept running and did not oil up.

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 sources record that the final blow, with the back of an axe, was delivered as an act of kindness by a Christian convert known as " Thrum.

Some home sewage treatment systems use biological treatment, usually beds of plants and aquaria, that absorb nutrients and bacteria and convert greywater and sewage to clear water.

Some proposed that it was the cause for increasing resistance on trans-Atlantic phone cables, while others predicted that if polywater were to contact ordinary water, it would convert that water into polywater, echoing the doomsday scenario in Kurt Vonnegut's novel Cat's Cradle.

Some sources describe ex-gay ministries as a form of conversion therapy, while others state that ex-gay organizations and conversion therapy are distinct methods of attempting to convert gay people to heterosexuality.

* Electric motors and generators: Some electric motors rely upon a combination of an electromagnet and a permanent magnet, and, much like loudspeakers, they convert electric energy into mechanical energy.

Some supermarkets, such as the one of Thomas Poucher convert the excess food that can no longer be sold at a timely manner, or at all ( when the best before, sell-by or use-by date has expired ) into biofuel to gain some extra revenue.

Some landowners were forcing tenants off their farms so that they could engross their holdings and convert arable land into pasture for sheep, which had become more profitable as demand for wool increased.

Some identify him with one whom Paul calls " Sosthenes our brother ," a convert to the faith and co-author of the First Epistle to the Corinthians ().

Some devices convert electricity into motion but do not generate usable mechanical power as a primary objective, and so are not generally referred to as electric motors.

Some approaches, like Delaunay triangulation, alpha shapes, and ball pivoting, build a network of triangles over the existing vertices of the point cloud, while other approaches convert the point cloud into a volumetric distance field and reconstruct the implicit surface so defined through a marching cubes algorithm.

Some scholars hold the view that Muawiyah was the second of the two to convert, with Abu Sufyan convincing him to do it.

Some Christians define " proselytism " more narrowly as the attempt to convert people from one Christian tradition to another ; those who use the term in this way generally view the practice as illegitimate and in contrast to evangelism, which is converting non-Christians to Christianity.

Some don't mind preaching but are concerned if the speech is accompanied by material benefits ( e. g., a soup kitchen that provides food, but only under the condition that the recipients listen to an evangelical discourse ) or new converts are given material benefits not available to those who don't convert.

Some restrict it in various ways such as prohibiting attempts to convert children or prohibit offering physical benefits to new converts.

Some scientific calculators provide a function to convert from rectangular coordinates to polar coordinates.

Some LD players could convert NTSC signals to PAL so that most TVs used in Hong Kong could display the LD materials.

Some existing Air National Guard fighter units equipped with piston-driven fighters, however could not convert to jets because the runways at the local airports where they were based were too short.

Some Albanians who convert to Islam find careers in the Ottoman Empire's government and military service.

Some yardage leagues also convert defensive stats into yards ( ex., 50 yards for an interception, 20 yards for a sack ), whether for a team's defense, or individual players.

Some have argued that they were forced to convert to Catholicism, while others have insisted that forced baptism was not recognized by the Catholic Church.

Some reagents ( e. g. Hydrogen iodide ) convert iodoform to diiodomethane.

Some churches decided to send missionaries to convert the Indians.

Some side discharge mower manufacturers also sell separate " mulching plates " that will cover the opening on the side discharge mower and, in combination with the proper blades, will convert the mower to a mulching mower.

Some were killed, such as Sumayyah bint Khabbab, the seventh convert to Islam, who was allegedly tortured first by Amr ibn Hishām.