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While and four-stroke

While a modified Otto cycle engine using the Atkinson cycle provides good fuel economy, it is at the expense of a lower power-per-displacement as compared to a traditional four-stroke engine.

While Scott's production machines were marketed as a kind of luxury " wheeled horse " for the Edwardian Gentleman, there was valuable publicity to be had in competition success and the early Scott motorcycles were so powerful that they often easily beat four-stroke motorcycles of the same capacity.

While and piston

While it is true that three power strokes typically occur per rotor revolution due to the 3: 1 revolution ratio of the rotor to the eccentric shaft, only one power stroke per shaft revolution actually occurs ; this engine provides three power ' strokes ' per revolution per rotor giving it a greater power-to-weight ratio than piston engines.

While automobile engine technology had remained fairly stagnant in World War II, advanced aircraft piston engine development had provided a great deal of available data, and NASCAR was formed just as some the improved technology was about to become available in production cars.

While in Marburg in 1690, having observed the mechanical power of atmospheric pressure on his ' digester ', Papin built a model of a piston steam engine, the first of its kind.

While the piston is close to Top Dead Center, the compressed air – fuel mixture in a gasoline engine is ignited, usually by a spark plug, or fuel is injected into the diesel engine, which ignites due to the heat generated in the air during the compression stroke.

While Daimler managed to improve production, the weakness in the Otto's vertical piston design, coupled to Daimler's stubborn insistence on atmospherric engines, led the company to an impasse.

While it is not uncommon for an automobile engine to continue on for thousands of miles with mild detonation, preignition can destroy an engine in just a few strokes of the piston.

While the ride height may be adjusted by turning the adjuster bolts on the stock torsion key, rotating the stock key too far can bend the adjusting bolt and ( more importantly ) place the shock piston outside its standard travel.

While Ricardo worked with Bristol Engines, Halford worked with Napier & Son on their Sabre design which would go on to be one of the most powerful piston aero engines, producing 3, 500 hp ( 2. 6 MW ) from only 2200 cubic inches ( 36 L ) in late-war versions.

While Daimler managed to improve production, the weakness in the Otto's vertical piston design, coupled to Daimler's stubborn insistence on atmospheric engines, led the company to an impasse.

While existing pumps in the region raised and lowered a heavy piston in a pipe, the Gaviotas engineers created pumps that leave the piston in place and instead lift and lower a cheap, light PVC sleeve around the piston ( Weisman 1995 ).

While and engine

While the engine installation crew works on the second car, the first car can be moved to the hood station and fitted with a hood, then to the wheels station and be fitted with wheels.

While over the far side of the Moon, the Command / Service Module's Service Propulsion System engine burned for six minutes and fifteen seconds, braking the spacecraft into an orbit around the Moon with a low point ( pericynthion ) of 58. 3 and a high point ( apocynthion ) of 170. 4 nautical miles ( 108. 0 and 315. 6 km, respectively ).

While counter weights add a considerable amount of weight to the crankshaft, it provides a smoother running engine and allows higher RPM levels to be reached.

While the game engine itself remained relatively similar between all games in the series, the interface went through many changes.

While progressive, this was a controversial design decision among fans of the original title, a well-known first-person shooter built on the Doom engine.

While search engine optimization can improve search engine ranking, consumers of such services should be careful to employ only reputable providers.

While it has since become clear that an index ( search engine ) is the most expedient entre into unfamiliar subject matter, associational links have remained an effective navigational method for obtaining intensive coverage of a subject area under study.

While the 356's body was an original design by Porsche employee Erwin Komenda, its mechanicals ( including engine, suspension and chassis ) were derived from the Volkswagen.

While the most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, wiki spam, online classified ads spam, mobile phone messaging spam, Internet forum spam, junk fax transmissions, social networking spam, social spam, television advertising and file sharing network spam.

* While at lower speeds, air-breathing engines are very efficient, the efficiency ( Isp ) and thrust levels of air-breathing jet engines drop considerably at high speed ( above Mach 5 – 10 depending on the engine ) and begin to approach that of rocket engines or worse.

While this approach does increase the complexity of the eccentric shaft design, it has been used successfully in the Mazda's production three-rotor 20B-REW engine, as well as many low volume production race engines.

While the car did not prove to be a major concern, the Peugeot engine proved to be heavy and unreliable.

; Efficiency: While there are losses in the charge / discharge cycle and in the conversion of electricity to motive power, Rutter points out that most electric boats need only about 1. 5 kW or 2 hp to cruise at 5 mph, a common maximum river speed and that a 30 hp petrol or diesel engine producing only 2 hp is considerably more inefficient.

While the NERVA engine was projected to weigh about 6, 803 kg, the final STNP offered just over 1 / 3 the thrust from an engine of only 1, 650 kg by improving the I < small >< sub > sp </ sub ></ small > to between 930 and 1000 seconds.

While modern flares can have an IR signature that is closely matched to the launching aircraft's engine exhaust, there is a readily distinguishable difference in UV signature between flares and jet engines.

While as recently as the 1990s jet engine flutter has grounded military aircraft.

While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting a motor or engine turning a propeller, or less frequently, in jet drives, an impeller.

While the fundamental technology underlying the Marathon engine is still considered rather outdated by today's standards, Aleph One has added significant improvements and a more modern polish to its capabilities and ported it to a wide variety of platforms, bringing Marathon and its derivatives far beyond their Mac roots.

While based in Cornwall Murdoch had to deal with a wide range of mechanical problems related to steam engines, and this led him to make practical improvements to the basic steam engine designs used by Boulton and Watt.

While and makes

While casuistry makes use of ethical theory, it does not view ethical theory as the most important feature of moral reasoning.

While this is true on one level, what makes it complex, difficult and frustrating are the barriers that come in its way.

While removing the global clock signal makes the design process considerably more complex in many ways, asynchronous ( or clockless ) designs carry marked advantages in power consumption and heat dissipation in comparison with similar synchronous designs.

While the detailed particle physics mechanism responsible for inflation is not known, the basic picture makes a number of predictions that have been confirmed by observation.

While the ride was originally founded with the idea of drawing attention to how unfriendly the city was to bicyclists, the leaderless structure of Critical Mass makes it impossible to assign it any one specific goal.

While firing a higher quantity of smaller bullets makes it easier to hit a target ( and is therefore good for beginner marksmen ), it offers very little to more advanced marksmen.

While the perspective is compatible with Jamesian pragmatism ( above ), the notion of the transformation of embodied concepts through structural mapping makes a distinct contribution to the problem of concept formation.

While he no longer continues to openly question every move that Cyclops makes, he is still concerned about some of his leadership decisions.

While this development makes fine tuners unnecessary, a very small number of bassists use them nevertheless.

While Moses is with God, Aaron makes a golden calf, which the people worship.

While these definitions are distinct, the problem of precisely measuring rapid decomposition makes practical classification of explosives difficult.

While the volcanic ash has resulted in fertile soils, it makes agricultural conditions unpredictable in some areas.

While the crowd was rioting in the streets, Justinian considered fleeing the capital, but he remained in the city on the stirring words of Theodora ( according to Procopius, she said " For an Emperor to become a fugitive is not a thing to be endured ... I hold with the old saying that the purple makes an excellent shroud ".

While many Japanese artists ( and artists in general ) are quite reclusive, Asamiya often makes an effort to be available to his fans.

While it requires diligent oversight to narrow down the favorable result the breeder wants, it also makes possible the development of new varieties of koi within relatively few generations.

While the law, on its face, promises workers the right to strike and to organize, in practice it makes it difficult or impossible for independent unions to organize while condoning the corrupt practices of many existing unions and the employers with which they deal.

While this makes the weapon safer to carry and reduces the likelihood of an accidental discharge, it also means that there will be a longer delay before the officer can fire the weapon.

While it would seem this is an important security concern, in fact, it only makes sense in a UNIX-like system.

While the constant temperature of the Atlantic Ocean moderates the climate of the south and east coasts of Nova Scotia, heavy ice build-up in the Gulf of Saint Lawrence makes winters colder in northern Nova Scotia ; the shallowness of the Gulf's waters mean that they warm up more than the Atlantic Ocean in the summer, warming the summers in northern Nova Scotia.

While he makes no specific reference to the possible war with Greece or the previous war ( that might be too dangerous ), he does seem to push the message that the government should take care of its own people before attempting any other military actions.

While this makes it unsuitable for current ' DNA optimised ' life, it may have been acceptable for more primitive life.

While Spock makes it clear that the events during the period of Surak are well documented (" The Savage Curtain "), he is completely uncertain in regard to the origin of the Romulans: " If the Romulans are an offshoot of my Vulcan blood -- and I think this likely -- then attack becomes even more imperative.

While not appearing large, the mass ratio to delta-v curve is very steep to reach orbit in a single stage, and this makes a 10 % difference to the mass ratio on top of the tankage and pump savings.

As of the 2009 release of The Proposal, Mark Kermode said she's made only three " good " films in her career — Speed, While You Were Sleeping, and Crash, and says " she's funny, she's gorgeous, it's impossible not to love her and yet she makes rotten film after rotten film after rotten film.

While briefly acknowledging the events of the preceding two sequels, its plot makes it a virtual remake of the 1974 original.

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