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With the acceleration of China's modernization, soil erosion caused by illegal activities in production and construction projects is becoming serious. Timely and effective monitoring and supervision is necessary. Traditional monitoring methods have many shortcomings, such as long period, limited precision, limited terrain. So it can't demonstrate the real situation of the project construction area...
Monitoring the nitrogen status of corn crop has significant influence in rational fertilization, production expansion, and pollution (caused by excessive use of nitrogen fertilizer) reduction. In order to rapidly acquire corn nutrient information in the field, a nondestructive method of corn nitrogen content measurement was conducted based on multispectral imaging. The multi-spectral image monitoring...
In an electric power system with a high penetration of wind power, incoming power ramps pose a serious threat to the power system. To adopt suitable response strategies for wind power ramps, it is important to predict them accurately and in a timely manner. Since power ramps are caused by various factors, their occurrence has irregular characteristics and vary by location, bringing great difficulty...
Maintenance strategy impacts the reliability of distribution network directly. Common distribution network maintenance strategies contain corrective maintenance and preventive maintenance. However, the existing reliability assessment methods ignore the effects of preventive maintenance. This study showed the influence of preventive maintenance on the system failure rate by describing the preventive...
Process reliability modeling is of great significance to guarantee the reliability of the manufacturing process. This paper will describe how to establish the relationship between reliability index of process resource and process parameters by studying the characteristic mapping of manufacturing process, which pays more attention to the process instead of product. Firstly, the key characteristics...
Curriculum evaluation is an important part of educational assessment. Gray relational analysis method can be applied to course evaluation in this paper. Grey correlation degree reflects the distance between a selected scheme and the ideal solution. The method was applied to actual course assessment situation of Capital Normal University Information Engineering College. The results indicate that this...
In order to evaluate the security efficiency of the transportation system, the theory of fuzzy synthetic evaluation was used. By analyzing the capability of the transportation system, an index system for synthetic evaluation of the transportation system security efficiency was built up; the method of optimal were quoted to calculate weight modulus of index system. Through a practical example, the...
Based on heat balance theory, this article educes three thermal comfort indexes correspond to three different types of underground space. Thermal comfort test data are introduced to revise and classify the indexes. In addition, it takes questionnaire dissatisfaction rate as the gist of subjective evaluation and thermal comfort index value as the gist of objective evaluation to assess the micro-climate...
The article educes three thermal comfort indexes correspond to three different types of underground space. In addition, it revises and classifies the indexes by thermal comfort test data. At the same time, it takes dissatisfaction rate of questionnaire as the gist of subjective evaluation and thermal comfort index value as the gist of objective evaluation to assess the thermal comfort of underground...
Taking soybean futures on Dalian Commodity Exchange for example, the paper studies the relationship between transaction behavior of agricultural futures investors and volatility of futures price. Most previous researches use parametric models to study price volatility, but estimation of volatility is efficient only when the form of general parametric models is rational and all assumptions are fulfilled...
To improve government objective performance, the Shenyang's government objective performance is taken as research background, the objective performance evaluation model for government is established. On the basis of analyzing goal location for performance, the index system for performance evaluation is established, varied disposing modes driven by varied goal location for weighting coefficient and...
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