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Using K.P method with the help of perturbation theory, the arbitrary k wave vector directional hole effective masses in strained Si1-xGex/(101)Si were obtained. It is found that the more obvious anisotropy of the hole effective mass occurs in strained Si1-xGex on (101) Si substrate and that the [010] directional hole effective mass decreases obviously under strain, compared with the one in relaxed...
Traditionally access control models focus on access decisions by the static attributes such as identities, group names, memberships, and so on. Some dynamic outside environment factors are ignored. In this paper, we introduce the EAAC model which extends traditional RBAC to include the notion of both environments and behaviors by introducing a new conception that embodies the dynamic environmental...
The isolation between antennas is a critical parameter in many practical applications such as antenna arrays, multiple input and multiple output (MIMO) communication systems, and integrated antenna systems. However, the close spacing between each of antennas generates the cross talk factor and restricts the integration of antenna system. To address the problem the authors proposed a new approach,...
In this paper, we propose an integrated OWL data mining and query system architecture for expressing the mined knowledge in the OWL format and for effectively answering users' queries. The proposed system consists of five sub-systems: query parser, rule inference system, ontology management system, knowledge generation system, and knowledge management system. We expect the architecture can provide...
It is very important to target detecting hardware and algorithm design in the field of target tracking field. A kind of detection algorithm using SVM (support vector machine) and AdaBoost which selects representative Harr characters is proposed. SVM uses selected Harr wavelet characters as input data in training and classifying procedure. In order to accelerate SVM classify and detect speed, the cascade...
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