It is used during daylight hours. The balloon is filled to such degree that its ascent rate is known. By measuring the time period between the start of the balloon and the moment it hides in the cloud can be determined the height of the cloud base.
imbrication lines (imâ³bro brÃ´Â´ika shÉn) , lÄ«nz.n pl. 1 the seams which are formed by overlapping layers of tissue in order to close a surgical. wound. 2 slight mesiodistal ridges in the cervical third of a. tooth
Shafts connections based on involute splines are suitable for transfering of high, cyclical and shock torsional moments. Involute splines are used for fixed and for sliding connections of shafts with hubs.. The splined profile is shaped as involute toothing in the cross section, with nominal pressure angles of the profile 30Â°, 37.5Â° or 45Â°. It is centered to the outer diameter or sides of the teeth.