The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Voltage stability analysis has been highly concerned by researchers. However, probabilistic techniques cannot handle fuzzy factors in power system. In this paper, a voltage stability analysis method based on adaptive fuzzy logic with consideration of random factors of loads is proposed. System states are classified, fuzzy mathematical model and fuzzy voltage indexes are established, and voltage stability...
The influence of emitter layer thickness and interface defect states on the photovoltaic performance of bifacial HIT solar cell was simulated by the program of AMPS-1D developed by the Pennsylvania State University. The simulation results indicate that the conversion efficiency of the solar cell reduces with increasing the emission layer thickness. However, the influence of the emission layer thickness...
Nonuniformity correction technique for MOS resistor array is always the key problem and advanced technology in the research and development of infrared scene generator. Based on a lot of tests on 128×128 MOS resistor array, the cause of the nonlinearity and nonuniformity is deeply analyzed, and a novel nonuniformity correction algorithm for MOS resistor array is presented. Firstly the entire projection...
The normal vector generation from point cloud plays a vital role in 3D laser scanning data processing. An effective generation method of normal vector from disordered point cloud is proposed in the paper. In the proposed method, disordered point cloud is firstly projected on the 2D plane via cylindrical surface. After establishing the triangle grids, the unit normal vector of each vertex is then calculated...
Based on the further analysis of typical failure modes and influences of tap-changers in power transformer, the fault-tree of tap-changers is set up by using fault-tree analysis(FTA) techniques and the assessment method for the reliability of tap-changers, combined with the index of the importance and the method of Improved Analytic Hierarchy Process(IAHP), is put forward. The assessment examples...
According to the analysis of existing technologies of on-line monitoring power cable insulation fault, aiming at that the temperature can better reflect the power cable insulation and the diversity of its monitoring methods, this paper mainly introduces the research situation and development trend of cable distributed temperature on-line monitoring technologies. Combined with application examples,...
Recently, increased attention has been paid to the front end of New Product Development (NPD). In this paper, we report on the key factors for success with regard to the front end activities of NPD in 513 Japanese companies. We develop and test a causal model of relationships among key variables relating to the front end factors and success. The causal model is tested with AMOS using information from...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.