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Revue Internationale de Psychanalyse du Couple et de la Famille n°16 1/2017 "Homosexualités, homoparentalités"
No full textSpacecraft attitude motion planning using gradient-based optimization
No full textThe purpose of the present work is to perform spacecraft attitude motion planning so that a rest-to-rest rotation is achieved while satisfying pointing constraints. Atti- tude is represented on the group of three dimensional rotations SO(3). The motion planning is executed in two steps. In the first step, path-planning is performed by searching for a time behavior for the angular rates through the formulation of an optimal control problem solved with a gradient-based algorithm. In the second step, the actual input torque is simply determined by the use of inverse attitude dynamics. A numerical example is included to show the effectiveness of the method. From a practical point of view, the control torque resulting from the proposed approach is continuously differentiable and vanishes at its endpoints
Revue Internationale de Psychanalyse du Couple et de la Famille n°16 1/2017 "La crise de la famille"
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Revue Internationale de Psychanalyse du Couple et de la Famille, n°20 1/2019 "Histoire et histoires en psychanalyse de couples et familles"
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SULFUR-DIOXIDE REACTIVITY OF CARBONATE ROCKS .3. INFLUENCE OF POROSITY AND PURITY OF SORBENTS
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