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In order to study the secondary arc characteristics of single-phase transient fault in UHV transmission lines with hybrid reactive compensation, a transmission line electromagnetic coupling model is presented in this paper. Dynamic model of secondary arc was established on the basis of improved Mayer equation. Based on the transient simulation and the method of Laplace transform, the law of secondary...
Understanding the spatial distribution of human social-economic activities helps marketing, policy making, planning, and government management. With rapid growing of internet, communication technology and the high penetration of mobile phones, massive activity data is collected from people daily life, giving us an opportunity to estimate the national distribution of human activities. This paper proposed...
The development of Chinese city has entered the competition era of soft power, soft power is an important embodiment of city competitiveness. This paper has carried on a comparative analysis on the soft power of Taiyuan, Zhengzhou, Wuhan, Hefei, Nanchang and Changsha six provincial capital cities in central region from the following eight aspects: cultural attraction, city cohesion, educational development...
In the process of armored equipment supply chain management, it's an important research content how to improve the turnover efficiency of armored equipment, reduce the stock cost, arrange production flow rationally, reduce the stocks of armored equipment, establish distribution plan and transportation scheme, save unwanted expenditure and serve better for the armored equipment management. SoftMan...
In this paper, we built evaluation index set of learning organization based on analysis of existing learning organization evaluation theory, and use quantitative methods-entropy method to fix the weight of each evaluation index. Then established evaluation of learning organization system and eventually used it in a research institute in order to guide their practice.
K nearest-neighbors (KNN) search/query in road network has important applications in location-based services. However, all existing KNN query methods for road network did not consider traffic restrictions such as one-way streets, turn restrictions at intersections, and so on. To address KNN queries with turn restrictions, in this paper we define a new type of KNN query, namely directed KNN, and propose...
A new design scheme for a self-tuning controller, combined self-tuner (CST), is proposed in this paper. The design philosophy of the CST is analyzed, and the simulation results are also given. The CST is compared with the extended self-tuner (EST). The capability of the proposed scheme is demonstrated by its application to the basis weight control loop of a paper machine.
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