Authors: Yibing Qiu
Comments: 1 Page.
Abstract: shows a viewpoint with regards to Van Allen Radiation Belts.
Authors: Abdelmajid Ben Hadj Salem
Comments: 59 Pages. In French.
It is my thesis to obtain the diploma of Engineer from the French National School of Geographic Sciences(ENSG, IGN France), presented in October 1981. The first part of the thesis is concerned with the determination of the equation of the observation of Laplace point in the option of 3D geodesy. The second part is about a study of a 3D model of deformation of geodetic networks that was presented by the Senior Geodesist H.M. Dufour in two dimensions.