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Compared with the conventional microcomposites, incorporating nanoparticles into polymeric matrix can better improve breakdown performance. Much works have been done to investigate the electrical properties of nanodielectrics since the first experimental results published. It is acknowledged that the interface between nanoparticle and polymeric matrix play a dominant role in the electric properties...
Compared with breakdown strength of insulating material used in power equipments, insulator employed in power system is easy suffered from surface flashover in vacuum. So, surface flashover has become a mainly restricted factor for developing high voltage and efficiency power equipments in vacuum. Although many works have been done to investigate the characteristics of surface flashover in vacuum,...
A contract mechanism to coordinate the supply chain's decision of product quality in conjunction with a free replacement warranty is proposed in this paper. Considering a supply chain with one manufacturer and one supplier, three schemes of contracts are examined, namely first best, no FRW cost sharing and with FRW cost sharing. Our conclusions show that FRW cost sharing contracts have the potential...
Nano-sized Al2O3 and TiO2 particles are mixed with polystyrene to prepare specimens, respectively. In this paper, the dielectric relaxation spectroscopy, breakdown strength and surface flashover voltage in vacuum of nanocomposites were investigated. Both breakdown strength and flashover voltage first increase, then decrease with increasing the fillers loading. They are also dependent on applied field...
Focal firms-oriented product supply chain innovation and innovative business model has become the core key of the firm as well as the entire value chain. This paper starts from the discontinuous innovation of focal companies, From economic dimension, service dimension, ecology dimension perspective reveals the driving force of supply chain innovation, points out that it experienced history from the...
A method of reconstructing the nanosecond signal is carried out based on Labview. A standard nanosecond pulse is got from pulse generator, and then the pulse is measured with a voltage divider. Through model identification, the math expression of the divider can be get. The best order of the filter is got simultaneously. The study of reconstructing input signal of measurement system is carried out...
Only including agricultural products logistics, agricultural means of production logistics, rural daily consumer goods logistics, as well as rural reverse logistics, it really be considered ldquorural logisticsrdquo. This paper analyzes the distribution of agricultural products, and distribution of daily consumer goods, agricultural means of production distribution, rural reverse logistics; states...
In this paper, we consider the problem of designing decentralized adaptive controllers for a class of nonlinear interconnected systems with dynamic interactions and unmodelled dynamics depending on both subsystem inputs and outputs. All the subsystems controllers only employ local information and are designed by applying the standard adaptive backstepping technique without any modification. It is...
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