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In a cognitive radio network (CRN), when the secondary users (SUs) are battery-powered devices, the concept of energy-efficient design is very important. In this paper, we propose an energy utility function by formulating the achievable data rate of a cooperative CRN in terms of the energy consumption by the CRN. The maximization of the energy utility function is obtained by jointly designing the...
Human resource flexibility leads to knowledge learning flexibility. Knowledge learning can improve product innovation performance. HR flexibility and product innovation performance are mediated by knowledge learning. Internal flexibility and external flexibility are two dimensions of HR flexibility. Regression equation is used for data analysis, the results of this survey to Chinese companies indicate...
The problem of heat dissipation of high power electronics such as IGBT (Insulated Gate Bipolar Transistors) has puzzled us for long time. If the heat generated from the chips could not be eliminated away from the devices, the failure rate would rise rapidly. To deal with this problem, the micro pumps along with the microchannel embedded in the DBC substrate are proposed to remove the heat actively...
With the continues progress and development of Computer technology and network technology, the network teaching platform has become a indispensable auxiliary teaching means in modern university teaching. According to the common problems, such as lack of resources, platform independent and closed, lack of interactivity, lack of personal knowledge management, lack of learning path and process evaluation,...
Blended learning has been proven to be the most effective way of learning, Blended learning usually adopts "Course teaching + Online learning community" way. The Mode is given by using sociality software build online learning communities in Blended learning of University.
The emergence of new technology has provided new insights into the traditional sports education in China's colleges. Analyzing the problems and their causes existing in our current tertiary sports education, following the pedagogical principle of “Health First” and “Knowledge and Creativity”, we point out the informationalized sports education will be the main trend in the future. We further build...
This paper, with combined method of theory and empirical analysis, proposed metrics of knowledge management capability and technology innovation performance, built relation model of knowledge management capability and innovation performance, and made basic assumptions. Then the paper conducted a survey of 98 sample companies, carried out factor analysis and correlation analysis against effective data...
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