نتایج جستجو برای: static properties
تعداد نتایج: 965057 فیلتر نتایج به سال:
functionally gradedpoisson’s ratio structures have been developed for critical protection. in thispaper, the static bending and buckling of fgpr nanoscale beam are studied basedon the nonlocal timoshenko beam model, in which both young’s modulus andpoisson’s ratio are assumed to vary continuously in the thickness direction. byutilizing total potential energy principle, equilibrium equations are...
In this paper, the solutions of the Gauss-Bonnet theory of gravity was proposed in the presence of a perfect fluid with thermodynamic pressure P and energy gravity ρ in n-dimension. Accordingly, perfect fluid tensor was regarded as energy-momentum tensor and the static and radiating solutions for the linear equation of state p = wρ was calculated. This solution contains all the solutions alread...
The static properties of the multi-chain Frenkel–Kontorova model are studied numerically. In the case of incommensurate structure, the transition by breaking of analyticity appears in each chain. A new hull function h(x), which also shows the transition by breaking of analyticity, is defined. The static friction (depinning force) depends strongly on the strength of the substrate potential, the ...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...
Full three dimensional static and dynamic mean field calculations using collocation basis splines with a Skyrme type Hamiltonian are described. This program is developed to address the difficult theoretical challenges offered by exotic nuclei. Ground state and deformation properties are calculated using static HartreeFock, Hartree-Fock+BCS and constrained Hartree-Fock models. Collective propert...
Early assessment of the non-functional properties of component compositions is one of the hottest issues in component-based architecting. We describe a method for evaluating the emergent static properties of an architecture, given the features of its constituents. The estimation framework is based on composition rules and the specification of the static properties of the components by means of ...
While soundness captures an essential requirement of the intrinsic approximation of any static analysis, completeness encodes approximations that are as precise as possible. Although a static analysis of some undecidable program property cannot be complete relatively to its reference semantics, it may well happen that it is complete relatively to an approximated and decidable reference semantic...
Materials used within a program designed to control static electricity have not changed very much in fundamental properties in the past 10 years. Standards have evolved over the past decade to assist in the development of a conscientious static control program. Properties for non-ESD related physical characteristics have changed substantially in the same time period based on industry demands. T...
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