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排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
992.
993.
Rudolf Felix 《Soft Computing - A Fusion of Foundations, Methodologies and Applications》2008,12(2):129-135
Real world applications of a decision model of relationships between goals based on fuzzy relations are presented. In contrast
to other approaches the relationships between decision goals or criteria for each decision situation are represented and calculated
explicitly. The application fields are decision making for financial services and optimization of production sequences in
car manufacturing. 相似文献
994.
In a mobile ad hoc network, difficulties exist in supporting address autoconfiguration and naming resolution due to the lack of centralized servers. This letter presents a novel approach, called name‐based autoconfiguration (NBA), which uses host names to determine IP addresses and provides address autoconfiguration and name resolution as a single protocol. 相似文献
995.
The current paper addresses the problem of 2-D modelling of the onset of failure process in a layered composite with periodic
array of interfacial cracks under static compression along layers. The statement of the problem is based on the most accurate
approach, the model of piecewise-homogenous medium. The condition of plane strain state is considered. The shear and the extensional
buckling modes are examined. The laminae are modelled by transversally isotropic material (a matrix reinforced by continuous
parallel fibres). The complex non-classical failure mechanics problem is solved utilizing finite element analysis. It is found
that the 0°-plies volume fraction, the crack length and the mutual position of cracks influence the critical strain in the composite. 相似文献
996.
997.
Sun-Yuan Hsieh 《The Journal of supercomputing》2007,39(1):39-57
A graph is distance-hereditary if the distance stays the same between any of two vertices in every connected induced subgraph containing both. Two well-known
classes of graphs, trees and cographs, both belong to distance-hereditary graphs. In this paper, we first show that the perfect
domination problem can be solved in sequential linear-time on distance-hereditary graphs. By sketching some regular property
of the problem, we also show that it can be easily parallelized on distance-hereditary graphs. 相似文献
998.
Aluminum–boron carbide particle reinforced composite is an advanced material which can be used in applications such as neutron-shielding
components, aircraft, and aerospace structures. In the microstructural characterization of an Al–7%Si–10%B4C die casting, attention is particularly focused on particle distribution and interface reaction products between B4C particles and the aluminum matrix. The quantitative analysis results show that, in a cross-section of the cast part, more
particles concentrate in the center and fewer particles are present in the wall regions. Moreover, some particle segregation
bands have been observed. The mechanisms of the particle migration are proposed to describe the phenomenon. However, the average
particle fraction in any cross-section of the cast part is almost the same. A barrier layer consisting of several sublayers
was detected on the surface of B4C particles. Using electron diffraction in selected areas, it is found that these sublayers are composed of Al3BC crystals, TiB2 crystals, Si crystals, and coarse stick-shaped TiB2 particles. In addition, it is observed that Si plays an important role in the formation of a dense barrier layer. The barrier
layer can limit B4C decomposition and improve B4C stability in the aluminum melt. 相似文献
999.
Wenying Wei Zhen Wang Yanhua Yin Jinyu Han Wen Xu 《Korean Journal of Chemical Engineering》2008,25(3):562-567
Composition Group Vector Space (CGVS) method for estimating melting and boiling point T
m
, T
b
of organic compound has been proposed, and the principle of this method has been elucidated. The models for estimating T
m
, T
b
have been established and the numerical values of relative parameters have been presented. The average percentage deviations
of T
m
, T
b
estimation are 7.53 and 1.58, respectively, which show that the present method demonstrates significant improvement in applicability
to predict the above properties, compared to conventional group methods. 相似文献
1000.