Results 271 to 280 of about 7,955,705 (309)
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A ‘periodic table’ for protein structures
Nature, 2002Current structural genomics programs aim systematically to determine the structures of all proteins coded in both human and other genomes, providing a complete picture of the number and variety of protein structures that exist. In the past, estimates have been made on the basis of the incomplete sample of structures currently known.
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Long-period polytype structures
Physical Review Letters, 1990Discussion du modele de Bruisma et Zangwill, en faisant intervenir deux effets de relaxation longitudinale, provenant des defauts d'empilement et des champs de deformation qui les ...
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Vibration of Rotationally Periodic Structures
Journal of Sound and Vibration, 1994Abstract The purpose of this paper is to determine eigensolutions of a rotationally periodic structure P of period N in terms of those of the i th substructure S(i) of P. Let y(i) be the generalized displacement vector and f(i) be the generalized force vector at interface I(i) , where substructures S(i) and S(i - 1) are connected.
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Excitation of Rotationally Periodic Structures
Journal of Applied Mechanics, 1979A rotationally periodic structure consists of a finite number of identical substructures forming a closed ring. The vibrational behavior of such structures is considered, especially the forced response due to a rotating force. It is known that for a rotationally symmetric structure, excited by a rotating force, resonance for the n nodal diameters mode ...
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The Case for Periodic Cancer Detection Examinations
Ca-A Cancer Journal for Clinicians, 1967Víctor A Gilbertsen, V A Gilbertsen
exaly