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Residential PV systems always suffer from a power loss that results in poor performance due to a mismatched case under real conditions. Addressing and minimizing the power loss of the PV system under such conditions is critical to improving PV system efficiency in residential use. Power electronics for photovoltaic systems have also evolved rapidly in such background, the trend moves towards distributed...
The correct functioning of inter-domain routing is of vital importance to the ever expanding Internet. As a common threat to the Internet, prefix hijackings often hijack traffic destined to some Autonomous Systems(ASes), leading to routing black holes or traffic interception. In this paper, we study two typical categories of prefix hijackings, namely false origin hijacking and man-in-the-middle interception,...
Colored Petri nets are widely used to model Automated Manufacturing Systems thanks to their compactness to describe complex networked systems. Compared to general Petri nets, they allow many folding techniques so as to condense the system model. With them, many control synthesis problems are reduced to the solution of matrix operations. Supervisory control techniques can be realized in a computationally...
Solvothermal combination of trivalent lanthanide metal precursors with 1, 2, 4, 5‐cyclohexanetetracarboxylic acid (L) ligand has afforded the preparation of a family of eight new coordination polymers [Ln4(L)3(H2O)10]·7H2O (Ln = Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb) (1–8). Structural analyses reveal that the 1, 2, 4, 5‐cyclohexanetetracarboxylic acid ligand with e,a,a,e (LI) conformation displays a μ4‐(κ...
Before a customer make a purchase decision, the information of the product or service is needed, which could come from the advertisement or marketing directly from the company. Besides, there is a more truthful way to get those information, from the other customs, who have little interest relations with the company. Through commercial or other kinds of way, customers influence each other, which can...
Three level dual Buck half bridge inverter topologies, especially the coupled-inductance dual Buck inverter, are presented. Dual Buck inverter is a new configuration which has the characteristics of high frequency and efficiency. However the output of the bridge is in bi-polarity PWM waveform and the voltage stress is high. To overcome those problems, three level combined switches are adopted to replace...
This paper addresses the traffic grooming problem in wavelength-division multiplexing (WDM) mesh networks. We first introduce a transceiver saving auxiliary graph model, in which various grooming policies can easily be achieved by assigning weight values for various edges. Then we propose a resource efficient grooming policy (REGP) based on the graph model, which take into account the wavelength constraint...
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