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期刊INVESTIGATION OF THE EFFECT OF MINOR IONS ON THE stability OF beta -C2S AND THE MECHANISM OF STABILIZATION.
《Cement and Concrete Research》Feng Xiuji[1]; Long Shizong[1]
The effect of minor ions on the stability of beta -C//2S is closely related to the polarization ability of the ions. In this paper a new mechanism about the stabilization has been described on the basis of applying th...显示全部
关键词:CALCIUM COMPOUNDS stability CONCRETE Research 
期刊stability of a synchronous generator with diode-bridge rectifier and back-emf load
《IEEE Transactions on Energy Conversion》Weiming, Ma[1]; An, Hu[1]; Dezhi, Liu[1]; Gaifan, Zhang[1]
An equivalent circuit model of a synchronous generator with diode-bridge rectifier and back-emf load is presented in this paper. The principle of harmonic balance is applied, which makes it possible to construct a sta...显示全部
关键词:Electric potential Electric rectifiers Mathematical models Rectifying circuits Rotors (windings) stability State space methods 
期刊Finite difference method for simulating transverse vibrations of an axially moving viscoelastic string
《Applied Mathematics and Mechanics (English Edition)》Zhao, Wei-Jia[1,2]; Chen, Li-Qun[2,3]; Zu, Jean W.[4]
A finite difference method is presented to simulate transverse vibrations of an axially moving string. By discretizing the governing equation and the equation of stress-strain relation at different frictional knots, t...显示全部
关键词:Dynamics Iterative methods Nonlinear equations Numerical analysis stability Strain Stresses Vibrations (mechanical) Viscoelasticity 
期刊Delay-dependent criteria for robust stability of linear neutral systems with time-varying delay and nonlinear perturbations
《International Journal of Systems Science》Yang, Bin[1]; Wang, Jincheng[1]; Pan, Xuejun[1]; Zhong, Chongquan[1]
This article investigates the robust stability of linear neutral systems with time-varying delay and nonlinear perturbations. Using a new Lyapunov-Krasovskii functional and employing some free weighting matrices, less...显示全部
关键词:Linear matrix inequalities Nonlinear analysis Perturbation techniques Robust control stability Time delay 
期刊Modeling and control for DC-DC converters based on hybrid system
《Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering》Ma, Hao[1]; Qi, Feng[1]; Zhang, Ni[2]
Power electronic circuit is a switching system. And its continuous time variables mutually affect with discrete events, so it is also a typical hybrid system. Based on hybrid System theory, uniform hybrid system model...显示全部
关键词:Power electronics Sliding mode control stability Switching systems 
期刊Genetic oscillation deduced from Hopf bifurcation in a genetic regulatory network with delays
《Mathematical Biosciences》Xiao, Min[1,2]; Cao, Jinde[1]
To understand how a gene regulatory network functioning as an oscillator is built, a genetic regulatory network with two transcriptional delays is investigated. We show by mathematical analysis and simulation that aut...显示全部
关键词:Bifurcation (mathematics) Laws and legislation Oscillators (electronic) stability 
期刊Global exponential stability for nonautonomous cellular neural networks with unbounded delays
《Chaos, Solitons and Fractals》Zhang, Qiang[1]; Wei, Xiaopeng[1]; Xu, Jin[1]
Global exponential stability of nonautonomous cellular neural networks with unbounded delays is considered in this paper. By applying Lyapunov functional method, some new sufficient conditions are given for global exp...显示全部
关键词:stability Time varying networks 
期刊Experimental study and property analysis of seal-filling hydrogel material for hermetic wall in coal mine
《Journal Wuhan University of Technology, Materials Science Edition》Luo, Zhenmin[1]; Deng, Jun[1]; Wen, Hu[1]; Cheng, Fangming[1]; Yang, Yongbin[1]
The effects of monomer, crosslinker, and accelerator content on the mechanical property of seal-filling hydrogel material for building hermetic wall were analyzed through a series of single-direction compression exper...显示全部
关键词:Coal mines Deformation Elastic moduli Hydrogels Hydrophilicity Materials Mathematical models Mining Monomers stability Walls (structural partitions) 
期刊Numerical simulation of effect of horizontal stresses at different levels on stability of roadways
《Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering》Gou, Pan-Feng[1]; Wei, Si-Jiang[1]; Zhang, Sheng[1]
Tectonic stress is one of the important factors affecting the stability of surrounding rock of roadway. stability and damage characters of bolted and unsupported roadways are studied by means of physical and numerical...显示全部
关键词:Anchor cables Computer simulation Floors Rock bolting Roofs stability Stress concentration Testing 
期刊Tailoring strongly nonlinear negative stiffness
《Journal of Mechanical Design, Transactions of the ASME》Liu, F.[1]; Theodossiades, S.[2]; McFarland, D.M.[3]; Vakakis, A.F.[4]; Bergman, L.A.[3]
Negative, nonlinear stiffness elements have been recently designed as configurations of pairs or groups of linear springs. We propose a new design of such a system by using a single linear spring with its moving end r...显示全部
关键词:Convergence of numerical methods Phase equilibria stability Stiffness 
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