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Filling a finite amount of high thermal conductivity materials into the base material to enhance the ETC (effective thermal conductivity) of the composite has attracted intensive interests, but how to disperse the fillers apparently poses a question. In the present study, we investigate the enhancement of ETC through altering the distribution of the fillers with an optimization method which is inspired...
In this paper, problems related to the design of fault detection filters (FDF) for dynamic systems with unknown inputs are studied. Core of our study is to consider the design problems under two different residual evaluation functions, the i?2-norm and the peak amplitude of the residual signals. The background of this study is the fault detection strategy of using multi-residual evaluation functions,...
Optimization of shrinkage and crack resistance performance of Engineered Cementitious Composites (ECC) is investigated due to ECC with higher drying shrinkage. Free shrinkage tests were used to research the influence of fiber content, superplasticizer (SP) and finely ground quartz powder (QP) on the total drying shrinkage value of ECC. Restrained drying shrinkage tests (ring tests) were used to research...
Although considerable effort has been devoted to duplicate document detection (DDD) and its applications, there is very limited study on the optimization of its time-consuming functions. An experimental analysis which is conducted on a million Grant Proposal documents from the nsfc.gov.cn shows that even by using the clustering and the sampling methods, the speed of DDD is still quite slow. By analyzing...
The integration of the planar monopole antenna into a ceramic ball grid array package was investigated. The integration was analyzed with an emphasis on the connection of the miniaturized antenna to the UWB radio die. Some useful techniques for suppression of unwanted resonances and enhancement of impedance bandwidth were described and proved by simulation for the integration. The good integrated...
A new method to scale a trimmed NURBS surface while holding the shape and size of specific features (trimming curves) unchanged is presented. The new method is fix-and-stretch based: the new surface is formed by fixing selected regions of the given trimmed NURBS surface that contain the trimming curves and stretching the remaining part of the surface to reach certain boundary conditions. The stretching...
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