Relationships between the minor axis semidiameter and major axis semidiameter have been empirically determined for different structural detail geometries.
Without assuming the form of unstrained state,the form of unstrained state corresponding to that of pre-stressed state can be obtained through this method directly.
Methods X-ray dental film and panoramic pantomogram were used to determine the location of embedded supernumerary teeth on bases of the geometrical principle of X-xay photography.
In this paper,the geometries of leucine,its thermolytic intermediate and final products are optimized by AM1 method,respectively.The parameters of the total energy and bond order etc are obtained.
We propose and show that the integral of magneton for the neutral atom of coherence along its motion-path in electric field will contribute to a geometric phase.
Through the motive analysis ,the article states the affect to the chip size and geometric figure from the changes of cutting angles in the chipping course of durm chipper.
The central nappe zone is divided into seven nappes, which have an appearance of horizontal scaly imbrication and vertical thruSt overlap,and thus form a seometric model of scaly imbrication.
To achieve such a rapid and low complexity of the distribution,and it proposes a semiregular mesh geometry coding related to the reconstruction of the mean square error of approximation.
With the request of geometry modeling system and application of the concept about complexes algebraictopology in the field of industrial production , the theory of non-manifold model come into being.
The formula of the curve tangent slope at some peculiar point in the orthograph on the stereoscopic surface intersecting line and the method of making tangent are given as well.