Measurement of track pitch of the optical disk and signal trace length;

This paper introduced a new method which can measure the optical disk's track pitch directly and precisely.

Effect of group interval on seismic migration

Therefore,the fixed safe space for lane-changing in some cellular automaton (CA) models is not appropriate.

Points out that it is necessary to plot the layout of piping collocation in designing and that the spacing between pipes and the surface temperature of floor be within the reasonable range and that some other equipment be added to share a part of heating loads if the heat release can not satisfy the requirement.