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As renewable energy is intermittent and randomly distributed, it is difficult for energy harvesting enabled networks to reliably supply the time-varying mobile traffic. We propose a brand new approach of energy sharing and load shifting to overcome this issue. In this paper, we first investigate the user association (UA) problem with energy cooperation to minimize the grid energy expenditure of heterogeneous...
Low rank tensor completion, which solves a linear inverse problem with the principle of parsimony, is a powerful technique used in many application domains in computer vision and pattern recognition. As a surrogate function of the matrix rank that is non-convex and discontinuous, the nuclear norm is often used instead to derive efficient algorithms for recovering missing information in matrices and...
Disturbance is described as stochastic processes considering ship dynamic positioning system's dynamic uncertainty. Backstepping stochastic nonlinear controller with observer is designed based on plant described as stochastic differential equations considering detection error; Stability analysis of Backstepping stochastic nonlinear controller with observer is given based on Lyapunov method. Results...
This paper develops a behavioral model of AC solid state power controller (SSPC) based on Mixed Signal Finite State Machine (FSM). State transition and impedance variation rules are summarized by analyzing the working modes of AC SSPC. The model defines 6 working states and 8 transitions functions to imitate the impedance variation of AC SSPCs during ON/OFF State, Zero voltage turn-on, Zero current...
We study properties of multidomain proteins from a graph theoretical perspective. In particular, we demonstrate connections between properties of the domain overlap graph and certain variants of Dollo parsimony models. We apply our graph theoretical results to address several interrelated questions: do proteins acquire new domains infrequently, or often enough that the same combinations of domains...
DOA estimation is one of the most important tasks for sonar system. However, the performance of conventional high-resolution DOA estimation methods is influenced because of the neglect of some important factors, such as effect of underwater sound channel, the array position errors and so on. In order to improve the robustness of the high-resolution DOA estimation methods, the vector optimization robust...
As the focus of relationship marketing, customer relationship may occur at the enterprise level, as well as the interpersonal level, and in some cases, the interpersonal level relationship may even go beyond the enterprise level relationship and become more important. This phenomenon exists not only in the B2B field, but also abounds in the B2C field, especially in the service business. However, there...
Ship Dynamic Positioning system's Thruster Allocation is a nonlinear programming problem with nonlinear equality and inequality. In practice, thrusters will be unbalancing worn with allocated unbalancing thruster forces. And when one thruster failures, dynamic positioning capability is hard to be recovered under allocated unbalancing thruster forces. In this paper, performance of algorithm is improved...
Wireless multimedia sensor networks (WMSNs) are expected to find wide applicability in target tracking in the near future. This paper proposes a dynamic capacity multi-path routing protocol (DCM), based on improved Ford-Fulkerson algorithm, to solve the problem of data transmission from anchor nodes to base station (BS). By adjusting the parameter of flow capacity in max-flow model, a multi-path routing...
In this paper, Simulation of a class of Ito system with distributed parameter is discussed. Difference schemes for the numerical computation of Ito system are obtained. The precision of the difference scheme and the efficiency of the difference scheme in simulation of Ito system with distributed parameter are analyzed. Examples are given to illustrate the application of the method.
Features extraction in NIDS is a NP-hard problem. To improve the search speed and avoid local minimal, immune is induced into features extraction in NIDS. Similar degree and chroma are defined. Relationship based on NIDS feature code and immune operators are constructed to avoid local minimal and improve speed and quality of the found solution. Experiments are based on standard data set and use genetic...
In this paper, controller on dynamic positioning of nonlinear offshore platform under stochastic wave is designed based on rolling horizon optimization. In order to improve the efficiency of searching for optimum controller sequence, controller structure based on the output of proportional-integral-differential is brought out. The method above is of feed-forward characteristics using predictive controller...
In this paper, anti-roll robust control nonlinear ship system under stochastic beam sea is designed based on stochastic control Lyapunov function. In order to guarantee that system could get corresponding states to design controller, a reference model is built to offer predicting states. When there are errors between reference model and practical system, the bound of errors on parameters should be...
In-situ sol-gel method was employed to prepare nano-alumina, and synthesized Al2O3/NA-PI composites, using anti-feeding processes. The micro-structures were characterized by Atomic Force Microscope (AFM) and Scan Electric Microscope (SEM). The images of SEM showed that the material was layered structure, two phases were uniformly dispersed, point scanning and surface scanning were similar, this confirmed...
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