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Large-scale Doubly-fed induction generator-based wind power plants connected to series-compensated transmission system are facing the risk of sub-synchronous oscillations (SSOs). A regional grid recently suffered from a spate of SSO failures. This event seriously affected the safe and stable operation of the power grid. This particular case was analyzed in detail in this study. The characteristics...
This paper treats the second calibration of atmospheric transmission coefficient with a view to achieving the accurate temperature measurement in field by the infrared thermal imager. A calibrating model for temperature measurement by the infrared thermal imager with a far distance in field is built and a standard expanded area blackbody and an infrared thermal imager for temperature measurement are...
In the information society, how to improve the information literacy has become an issue of computer teaching in the colleges and Universities. At the same time, with the development of Internet technology, a better design platform is provided for the research. This thesis points to a series of existing problems in the information literacy cultivation of the computer majors such as the curriculum system,...
This essay focuses on the overall framework and functions of home automation system (HAS) based on J2EE/J2ME platform. This system mainly fulfills a remote control on household electronics with the help of mobile phones. This essay also deals with the modeling of HAS with the use of UML technology. This essay analyzes and explains the designing plan of both the mobile phone user and the server terminal,...
Based on the principles of thermal radiation and temperature measurement with infrared thermal imager, the different performance of heat conduction through poly-acrylonitrile carbon-fibre fabric (or carbon-fibre) was mensurated with infrared thermal imaging technology under different temperature. A new evaluation approach of carbon-fibre heat conduction performance was proposed by analysing and calculating...
A series of information centre solutions are proposed based on the research of the characteristics of telecom information centre platform. The thesis analyzes and designs the structures and function of the information centre system. The system may be applied into the usage of China Telecom, and it would inspire us on the construction of China Telecom informatization in some degree.
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