If the nominal compression ratio of an engine is given, the pre-ignition cylinder pressure can be estimated using the following relationship:

If a compression test does give a low figure, and it has been determined it is not due to intake valve closure / camshaft characteristics, then one can differentiate between the cause being valve / seat seal issues and ring seal by squirting engine oil into the spark plug orifice, in a quantity sufficient to disperse across the piston crown and the circumference of the top ring land, and thereby effect the mentioned seal.

If a second compression test is performed shortly thereafter, and the new reading is much higher, it would be the ring seal that is problematic, whereas if the compression test pressure observed remains low, it is a valve sealing ( or more rarely head gasket, or breakthrough piston or rarer still cylinder wall damage ) issue.

If sections of the frame move in a simple manner, the compressor emits a ( slightly longer ) command that tells the decompresser to shift, rotate, lighten, or darken the copy: a longer command, but still much shorter than intraframe compression.

If a petrol engine were to have the same compression ratio, then knocking ( self-ignition ) would occur and this would severely reduce the efficiency, whereas in a Diesel engine, the self ignition is the desired behavior.

If the pores are filled with water, then the water must be squeezed out of the pores to allow volumetric compression of the soil ; this process is called consolidation.

If we compress data in a manner that assumes q ( X ) is the distribution underlying some data, when, in reality, p ( X ) is the correct distribution, the Kullback – Leibler divergence is the number of average additional bits per datum necessary for compression.

If a compression scheme is lossless — that is, you can always recover the entire original message by uncompressing — then a compressed message has the same quantity of information as the original, but communicated in fewer bits.

If data which has been compressed lossily is decoded and compressed losslessly, the size of the result can be comparable with the size of the data before lossy compression, but the data already lost cannot be recovered.

If we apply the run-length encoding ( RLE ) data compression algorithm to the above hypothetical scan line, we get the following:

If you are using the library to always compress specific types of data, then using a specific strategy may improve compression and performance.

If the approximate entropy characteristics of a data stream are known in advance ( especially for signal compression ), a simpler static code may be useful.

If a material with high strength in tension, such as steel, is placed in concrete, then the composite material, reinforced concrete, resists not only compression but also bending and other direct tensile actions.

If excessive compression is applied then both the tiles and the patterns within tiles may be seen.

If a sufficiently homogenous mix of the components cannot be obtained with simple blending processes, the ingredients must be granulated prior to compression to assure an even distribution of the active compound in the final tablet.

If the surface tension of the interface is measured during the compression, a compression isotherm is obtained.

If the compression ratio is increased, the mixture may auto-ignite before the compression stroke is complete, leading to " engine knocking ".

If the Otto cycle is abandoned, however, and fuel is injected directly into the combustion-chamber during the compression stroke, the petrol engine is liberated from a number of its limitations.

If the pump is used outside its specification, the compression of the gas generates so much heat that the lobes expand to the point that they jam, damaging the pump.

If the image were partitioned directly and the wavelet transform separately applied to each segment, under lossy compression the boundaries between segments would tend to be noticeable in the reconstructed image even when no

If the reserve components are to serve effectively in time of war, their basic organization and objectives must conform to the changing character and missions of the active forces.

If, however, the numbers are referring to allies it could possibly include forces from Tyre, Judah, Edom, and Moab.

If under the existing system he could not assemble forces quickly enough to intercept mobile Viking raiders, the obvious answer was to have a standing field force.

If the hijackers ' demands are deemed too great and the perpetrators show no inclination to surrender, authorities sometimes employ armed special forces to attempt a rescue of the hostages ( notably Operation Entebbe ).

If Holstein-Beck's Dutch column were destroyed, the Allied army would be split in two: Eugene's wing would be isolated from Marlborough's, passing the initiative to the Franco-Bavarian forces now engaged across the whole plain.

If attractive forces ( such as van der Waals forces ) prevail over the repulsive ones ( such as the electrostatic ones ) particles aggregate in clusters.

If a rotating frame is chosen so that just the angular position of an object is held fixed, more complicated motion, such as elliptical and open orbits, appears because the centripetal and centrifugal forces will not balance.

If the electrode has a positive potential with respect to the SHE, then that means it is a strongly reducing electrode which forces the SHE to be the anode ( an example is Cu in aqueous CuSO < sub > 4 </ sub > with a standard electrode potential of 0. 337 V ).

Police Commissioner Bob Hauk ( Lee Van Cleef ) offers a deal to special forces soldier turned criminal " Snake " Plissken ( Kurt Russell ): If he rescues the president and retrieves a secret cassette tape within 24 hours, Hauk will give him a full pardon.

If they had gone it alone, the IRB and the Volunteers would possibly have come to their aid ; however, the IRB leaders met with Connolly in January 1916 and convinced him to join forces with them.

" If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself ; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it.

If the spheres only appear to rotate ( that is, we are watching stationary spheres from a rotating frame ), the zero tension in the string is accounted for by observing that the centripetal force is supplied by the centrifugal and Coriolis forces in combination, so no tension is needed.

If the case should arise, they are resolved, and prepared, to employ without delay all the forces at their command, and it is impossible to foresee the end of hostilities once engaged.

If a higher minimum wage increases the wage rates of unskilled workers above the level that would be established by market forces, the quantity of unskilled workers employed will fall.

If the selection forces remain the same for many generations, beneficial alleles become more and more abundant, until they dominate the population, while alleles with a lesser fitness disappear.

If comrade Molotov can manage to postpone the war for two or three months that will be our good fortune, but you yourselves must go off and take measures to raise the combat readiness of our forces ".

If the base current to the transistor is assumed to be zero, the negative feedback forces the transistor to increase its collector-emitter voltage up to 1 V until its base-emitter voltage reaches 0. 625 V ( a typical value for a BJT in the active region ).

If the plum-pudding model were correct, the positive " pudding ", being more spread out than in the current model of a concentrated nucleus, would not be able to exert such large coulombic forces, and the alpha particles should only be deflected by small angles as they pass through.

If multiple forces are applied, Newton's second law instead reads, and it follows that

If a secondary body orbits a primary body, the forces that could tear the second body apart if its strength and internal gravity are not enough, are the tidal force and the " centrifugal force " associated with any rotation of the secondary body about its axis.

If, for example, the overall goal is to win a war against another country, one strategy might be to undermine the other nation's ability to wage war by preemptively annihilating their military forces.

If the mark forces, the other defender only has to guard the dump on the side his teammate is forcing.

If the vapor pressure is less than predicted ( a negative deviation ), fewer molecules of each component than expected have left the solution in the presence of the other component, indicating that the forces between unlike molecules are stronger.

If a flow cools relatively rapidly, significant contraction forces build up.