Results 201 to 210 of about 1,084,546 (254)
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Journal of Chemical Theory and Computation, 2008
The total electron density distribution of an isolated atom or an atom in a molecule does not reveal an atomic shell structure. Many localization functions, such as the radial averaged electron density, the Laplacian of the electron density, or the electron localization function have been proposed to visualize and analyze the shell structure of atoms ...
Eickerling, Georg, Reiher, Markus
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The total electron density distribution of an isolated atom or an atom in a molecule does not reveal an atomic shell structure. Many localization functions, such as the radial averaged electron density, the Laplacian of the electron density, or the electron localization function have been proposed to visualize and analyze the shell structure of atoms ...
Eickerling, Georg, Reiher, Markus
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Nanoengineering of Polymeric Capsules with a Shell-in-Shell Structure
Langmuir, 2002Polymeric capsules possessing a shell-in-shell structure were fabricated by assembling layers of polyelectrolytes with interlayers of silica nanoparticles onto microspheres of melamine formaldehyde. Subsequently the cores were removed with hydrochloric acid and the silica layers with hydrofluoric acid.
Dai, Z. +3 more
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Shell structure and shell strength in Cirripedes
Proceedings: Animal Sciences, 1989Compressive and adhesive strengths of 7 barnacles endemic to Bombay shore were ascertained by using Instron universal testing machine. The adhesive strengths of balanid species settled on man-made materials like bakelite, asbestos, perspex, rubber, glass and teflon were determined. The adhesion on teflon was found to be the poorest.
A A Karande, M Udhayakumar
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Control of the shell structure of ZnO–ZnS core-shell structure
Journal of Nanoparticle Research, 2011Nanostructured ZnO–ZnS core-shell powders were synthesized through a solution method using a thioacetamide (TAA) solution in deionized water. ZnO powder and TAA solution were employed to supply zinc and sulfur ions to form the ZnO–ZnS core-shell structures.
Woo Hyun Nam +4 more
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Reinforcement of General Shell Structures
ACM Transactions on Graphics, 2020We introduce an efficient method for designing shell reinforcements of minimal weight. Inspired by classical Michell trusses, we create a reinforcement layout whose members are aligned with optimal stress directions, then optimize their shape minimizing the volume while keeping stresses bounded.
Francisca Gil Ureta +2 more
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Proceedings of the Physical Society. Section A, 1954
There is convincing evidence from the study of nuclear stabilities, magnetic moments, spins, and from other sources, that there is a marked regularity of nuclear properties, particularly clearly shown by breaks at 2, 8, 20, 28, 50, 82 and 126 protons or neutrons.
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There is convincing evidence from the study of nuclear stabilities, magnetic moments, spins, and from other sources, that there is a marked regularity of nuclear properties, particularly clearly shown by breaks at 2, 8, 20, 28, 50, 82 and 126 protons or neutrons.
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Applied and Industrial Mathematics in Italy II, 2007
A decade ago, the so-called Kroner-Lee decomposition—primarily introduced to discern between elastic and (visco-)plastic strains—was given a broader scope and a deeper interpretation than the original ones, as describing the interplay between the actual and the relaxed configuration of each body element.
DI CARLO A +3 more
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A decade ago, the so-called Kroner-Lee decomposition—primarily introduced to discern between elastic and (visco-)plastic strains—was given a broader scope and a deeper interpretation than the original ones, as describing the interplay between the actual and the relaxed configuration of each body element.
DI CARLO A +3 more
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Measures of Circularity for Shell Structures
Journal of Structural Engineering, 2011Most design codes for circular shell structures include a limit on out-of-round imperfections. However, commonly used measures of out-of-roundness fail to identify shapes that have constant diameter but are not circular. It is shown that out-of-roundness imperfections that take these forms can significantly affect the strength of nominally circular ...
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The Structure of the Turtle Shell and the Porous Metal Mimicking the Structure of the Turtle Shell
Advanced Materials Research, 2011The turtle shell, as the oldest amphibian, has developed a rigid calcified shell to protect the soft body against environmental pressures and predators. The paper has studied the effect of microstructure on the mechanical behavior of the turtle shell. Furthermore the porous Fe-Cr based alloy was manufactured by the method of powder metallurgy.
Yan Liang, Chao Ma, Cheng Wei Wu
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Structural optimization of shell structures
Computers & Structures, 1994A previous computer program (due to \textit{J. Kiusalaas} and \textit{G. B. Reddy}) has been modified so as to be applied to the structural optimization of thin shell structures subjected to stress and displacement constraints. In the modified program, the torsional spring elements are eliminated (by modifying the membrane stiffness matrix of the ...
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