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Space junk: Why it is time to clean up the skiesBy Sharon Weinberger Last year a study reported that space debris had reached a level at which frequent collisions and spacecraft failures are increasin
Introduction to Spac
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Nonlinear Oscillatio
Finite Element Method potential energyπpStiffness matrix nodal displacements (unknowns)or:Internal forces :External forces § Assembly of system equation:global nodal force matrix :global stiffne
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Probin
IEEEMUNICATIONS
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