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Zhengzhou, China

Zhengzhou Institute of Aeronautical Industry Management is a public university located in Zhengzhou, Henan, China. Wikipedia.

Shi Y.,Huazhong University of Science and Technology | Liu H.,Huazhong University of Science and Technology | Gao L.,Huazhong University of Science and Technology | Zhang G.,Zhengzhou Institute of Aeronautical Industry Management
Information Sciences

This paper proposes a cellular particle swarm optimization (CPSO), hybridizing cellular automata (CA) and particle swarm optimization (PSO) for function optimization. In the proposed CPSO, a mechanism of CA is integrated in the velocity update to modify the trajectories of particles to avoid being trapped in the local optimum. With two different ways of integration of CA and PSO, two versions of CPSO, i.e. CPSO-inner and CPSO-outer, have been discussed. For the former, we devised three typical lattice structures of CA used as neighborhood, enabling particles to interact inside the swarm; and for the latter, a novel CA strategy based on "smart-cell" is designed, and particles employ the information from outside the swarm. Theoretical studies are made to analyze the convergence of CPSO, and numerical experiments are conducted to compare the proposed algorithm with different variants of PSO. According to the experimental results, the proposed method performs better than other variants of PSO on benchmark test functions. © 2011 Elsevier Inc. All rights reserved. Source

Zhang G.,Zhengzhou Institute of Aeronautical Industry Management | Gao L.,Huazhong University of Science and Technology | Shi Y.,Huazhong University of Science and Technology
Expert Systems with Applications

In this paper, we proposed an effective genetic algorithm for solving the flexible job-shop scheduling problem (FJSP) to minimize makespan time. In the proposed algorithm, Global Selection (GS) and Local Selection (LS) are designed to generate high-quality initial population in the initialization stage. An improved chromosome representation is used to conveniently represent a solution of the FJSP, and different strategies for crossover and mutation operator are adopted. Various benchmark data taken from literature are tested. Computational results prove the proposed genetic algorithm effective and efficient for solving flexible job-shop scheduling problem. © 2010 Elsevier Ltd. All rights reserved. Source

Feng X.,Zhengzhou Institute of Aeronautical Industry Management
International Journal of Digital Content Technology and its Applications

Base on the successively engaging projection called teeth, gears are direct contact bodies, operating in pair, that transmit motion and force from one rotating shaft to another, it is one of the most important mechanical transmission forms in the field of mechanical engineering, it has various forms and uses widely, but the consequences caused by gear failure are often serious. Loaded contact performance, tooth contact stress and tooth root bending stress of the pair of gears are an important concerned index in the successive process of engagement. The precise modeling of involutes cylindrical gear is obtained by using the large scale CAD software, and using of the data interface of the finite element analysis software, it can import the model in the form of dxf into the finite element analysis software, the model of three dimensional finite element nonlinear contact was established. According to the geometric shape of the tooth, it can divide the model into lattice and impose the appropriate boundary conditions, it can be obtain the quasi static characteristics of the meshing tooth by using the finite element analysis. The results of numerical analysis showed that the model can accurately simulate the distribution of equivalent stress and the changing displacement in the process of tooth meshing gear, which verify the accuracy of the model, and the model can be used to deal with the dynamic meshing problem of gears. Source

Zhang L.-T.,Zhengzhou Institute of Aeronautical Industry Management | Li J.-L.,North China University of Water Conservancy and Electric Power
Computers and Mathematics with Applications

In 2013, Bai and Zhang (2013) constructed modulus-based synchronous multisplitting methods by an equivalent reformulation of the linear complementarity problems into a system of fixed-point equations and studied their convergence. In this paper, we generalize Bai and Zhang's methods and study modulus-based synchronous multisplitting multi-parameters methods for linear complementarity problems. Furthermore, the convergence results of our new method in this paper are weaker than those of Bai and Zhang's when the system matrix is an H+-matrix. © 2014 Elsevier Ltd. All rights reserved. Source

Wang J.,Zhengzhou University | Fan C.,Zhengzhou University | He J.,Zhengzhou University | Ding P.,Zhengzhou Institute of Aeronautical Industry Management | And 2 more authors.
Optics Express

Double Fano resonant characteristics are investigated in planar plasmonic structure by embedding a metallic nanorod in symmetric Ushaped split ring resonators, which are caused by a strong interplay between a broad bright mode and narrow dark modes. The bright mode is resulted from the nanorod electric dipole resonance while the dark modes originate from the magnetic dipole induced by LC resonances. The overlapped dual Fano resonances can be decomposed to two separate ones by adjusting the coupling length between the nanorod and U-shaped split ring resonators. Fano resonances in the designed structure exhibit high refractive-index sensing sensitivity and figure of merit, which have potential applications in single or double-wavelength sensing in the near-infrared region. © 2013 Optical Society of America. Source

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