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According to the current solution method of reradiation interference protecting distance between radio station and UHV power lines, the resonance characteristics of interference is a key issue in decreasing the protecting distance. The wire-surface simulation model, in which steel tower is represented as surface model and ground wire is represented as wire model, is excitated by vertical polarization...
In the construction of UHVDC power line in China, the national standard of reradiation interference protecting distance between UHVDC power line and receiving station of AM broadcasting needs to be renewed. In this paper, the wire-surface simulation model is used to calculate the interference. In the model, steel tower is represented as surface model, ground wire is represented as wire model, and...
Aggregates are food for construction industry and hydraulic and hydropower engineering, account for 80% of concrete. Now the number of artificial aggregate systems of being used and preparing to put into use is considerable, which calls for an efficient method to assess the environment impact. In this paper eight factors are taken into consideration to set up a factor set, which includes wastewater,...
Artificial aggregate systems are used both by aggregate producers and the mining industry. It is a multi- attribute complicated system which has many uncertain or fuzzy factors, which means constructing a practical and satisfactory mathematical model for computer simulation and optimization is difficult. To achieve optimal performance of an artificial aggregate system, equipment Selection and coordination...
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