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College students, as a special social group, is the main source of innovation and entrepreneurship in the future China. However, entrepreneurial intention is a prerequisite for entrepreneurial behavior. In this paper, we took the actual situation of Yunnan University into consideration, and analyzed a large number of documents and relevant theories. Then we proposed the theoretical models and 11 assumptions...
The electrical performance of vias in multilayer PCBs is investigated. In particular the resonance effect due to overlapping anti-pads is characterized and an analytical formulation based on the dimensions of the cavity formed by the anti-pads and the vias is used to predict such a resonance. A prototype board is fabricated and measured results confirm the predicted results obtained from 3D electromagnetic...
In this paper, the problem of initial link establishment in multi-channel Cognitive Radio Networks (CRN) is investigated. Different from the traditional scenario, in which the transceiver pair can establish an initial link through exchanging the control messages on the Common Control Channel (CCC), a more realistic scenario in the absence of CCC is considered in our work. Without the help of CCC,...
In this paper we propose two distributed power control algorithms for cognitive radio cellular network (CogCell). Our objective is to maximize the number of admitted Secondary Users (SUs), while making sure both the Primary User's and SUs' requirements of Quality of Service (QoS) are satisfied with certain constraints. Here the PU's requirement of QoS is described that the Interference Temperature...
Introduced the model of Sigmoid chaos neuron, and its necessary conditions of dynamics characteristics, such as Lyapunov exponent (LE), bifurcation and dissipative have been analyzed thoroughly. Under the sine driving, the evolution state of chaos neuron was analyzed through the simulation.
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