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DYNAMIC PROPERTIES OF continuous ASYMMETRIC NEURAL NETWORKS

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Journal of Electronics(China) 1995年第4期12卷 312-318页

作者：刘小河 Department of Automation Engineering Xi'an University of Technology Xi'an 710048

The dynamic properties of continuous asymmetric neural networks are discussed in this paper. The condition in the existence of unique equilibrium point is obtained. It is also dealt with the conditions in not producing static bifurcation and Hopf’s bifurcation and is put forward the sufficient conditions for overall asymptotic stability and exponential stability.

关键词： continuous neural networks Nonlinear dynamics Equilibrium point Stability

Modeling and Dynamic Analysis of Fractional-Order Buck Converter in continuous Conduction Mode

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Journal of Harbin Institute of Technology(New Series) 2019年第4期26卷 58-68页

作者： Dawei Ding Zongzhi Li Nian Wang School of Electronics and Information Engineering Anhui University

According to the fact that the actual inductor and actual capacitor are fractional, the mathematical and state-space averaging models of fractional order Buck converters in continuous conduction mode(CCM) are constructed by using fractional calculus theory. Firstly, the parameter conditions that ensure that the converter working in CCM is given and transfer functions are derived. Also, the inductor current and the output voltage are analyzed. Then the difference between the mathematical model and the circuit model are analyzed, and the effect of fractional order is studied by comparing the integer order with fractional order model. Finally, the dynamic behavior of the current-controlled Buck converter is investigated. Simulation experiments are achieved via the use of Matlab/Simulink. The experimental results verify the correctness of theoretical analysis, the order should be taken as a significant parameter. When the order is taken as a bifurcation parameter, the dynamic behavior of the converter will be affected and bifurcation points will be changed as order varies.

关键词： Buck converter fractional order continuous conduction mode(CCM) modeling dynamic analysis bifurcation

Periodic Solution of Nonautonomous System with continuous Time Delays

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Journal of Mathematical Research with Applications 1999年第2期 3-5页

Ｗｅｃｏｎｓｉｄｅｒｔｈｅｎｏｎａｕｔｏｎｏｍｏｕｓｃｏｏｐｅｒａｔｉｖｅｓｙｓｔｅｍｗｉｔｈｃｏｎｔｉｎｕｏｕｓｔｉｍｅｄｅｌａｙｘ（ｔ）＝ｘ（ｔ）［ａ１（ｔ）－ａ２（ｔ）ｘ（ｔ）＋ａ３（ｔ）∫０－τｋ１（ｓ）ｘ（... 详细信息

Ｗｅｃｏｎｓｉｄｅｒｔｈｅｎｏｎａｕｔｏｎｏｍｏｕｓｃｏｏｐｅｒａｔｉｖｅｓｙｓｔｅｍｗｉｔｈｃｏｎｔｉｎｕｏｕｓｔｉｍｅｄｅｌａｙｘ（ｔ）＝ｘ（ｔ）［ａ１（ｔ）－ａ２（ｔ）ｘ（ｔ）＋ａ３（ｔ）∫０－τｋ１（ｓ）ｘ（ｔ＋ｓ）ｄｓ－ａ４（ｔ）∫０－τｋ...

关键词： System Nonautonomous Solution continuous

ESTIMATION OF ATTRACTION DOMAIN AND EXPONENTIAL CONVERGENCE RATE OF continuous FEEDBACK ASSOCIATIVE MEMORY AND ITS APPLICATIONS

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同方期刊数据库

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Journal of Electronics(China) 1996年第2期13卷 129-133页

作者： Liang Xuebin Wu Lide(Department of Computer Science, Fudan University, Shanghai 200433) Department of Computer Science Fudan University Shanghai

The attraction domains of memory patterns and exponential convergence rate of the network trajectories to memory patterns for continuous feedback associative memory are estimated. These results can be used for evaluation of error-correction capability and the synthesis procedures for continuous-time associative memory neural networks.

关键词： continuous feedback associative memory Neural network Attraction domain Exponential convergence rate

THE CHARACTERISTIC OF EVENTUALLYUNIFORMLY continuous C0 SEMIGROUPSON A HILBERT SPACE

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Systems Science and Mathematical Sciences 1999年第1期12卷 49-54页

作者： ZHANG Lianping (Department of Mathematics, Shanxi University, Taiyuan 030006, China) 山西大学数学系山西太原

A full characterization is given, in terms of the resolvent R(λ; A) of the infinitesimal generator A of a C0 semigroup T(t) on a Hilbert spaced which assures the continuity for t > t0 (t0 0) of T(t) in the uniform op... 详细信息

关键词： C0 semigroup continuous in the uniform operator topology Fourier transform.

Study on Control Algorithm for continuous Segments Trajectory Interpolation

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武汉理工大学学报 2006年第S3期28卷 994-998页

作者： SHI Chuan YE Peiqing LV Qiang Department of Precision Instrument and Mechanolegy,Tsinghua University,Beijing 100084,China, Department of Precision Instrument and Mechanology Tsinghua UniversityBeijing 100084China

In CNC machining,the complexity of the part contour causes a series of problems including the repeated start-stop of the motor,low machining efficiency,and poor machining *** relieve those problems,a new interpolation algorithm was put forward to realize the interpolation control of continuous sections *** relevant error analysis of the algorithm was also *** feasibility of the algorithm was proved by machining experiment using a laser machine to carve the interpola- tion trajectory in the CNC system *** algorithm effectively improved the machining efficiency and the contour quality.

关键词： CNC machining trajectory interpolation continuous error analysis

THE　OPTIMUM　SELECTION　FOR　A　continuous　TYPE　EUCLIDEAN　MULTIFACILITY　LOCATION

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Systems Science and Mathematical Sciences 1996年第2期9卷 101-106页

作者： GAO Chengyun (Institute of Automation, Qufu Normal University, Qufu 273165, China) 曲阜师范大学自动化所山东曲阜 273165

ＴＨＥＯＰＴＩＭＵＭＳＥＬＥＣＴＩＯＮＦＯＲＡＣＯＮＴＩＮＵＯＵＳＴＹＰＥＥＵＣＬＩＤＥＡＮＭＵＬＴＩＦＡＣＩＬＩＴＹＬＯＣＡＴＩＯＮＧＡＯＣｈｅｎｇｙｕｎ（ＩｎｓｔｉｔｕｔｅｏｆＡｕｔｏｍａｔｉｏｎ，ＱｕｆｕＮｏｒ... 详细信息

ＴＨＥＯＰＴＩＭＵＭＳＥＬＥＣＴＩＯＮＦＯＲＡＣＯＮＴＩＮＵＯＵＳＴＹＰＥＥＵＣＬＩＤＥＡＮＭＵＬＴＩＦＡＣＩＬＩＴＹＬＯＣＡＴＩＯＮＧＡＯＣｈｅｎｇｙｕｎ（ＩｎｓｔｉｔｕｔｅｏｆＡｕｔｏｍａｔｉｏｎ，ＱｕｆｕＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，Ｑｕｆ...

关键词： continuous type multifacility location subgradient algorithm convergence

The 3D Simulation of Liquid Core Change of Cylinder Steel Rolling Forming on Soft-reduction continuous Casting Process

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武汉理工大学学报 2006年第S2期28卷 637-639页

作者： LUO Jian~(1.2) WANG Ying~1 LI Ainong~1 HUA Lin~1 1.Department of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,China 2.State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology,Wuhan 430074,China Department of Material Science and Engineering Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology Wuhan 430074China Department of Material Science and Engineering Wuhan University of TechnologyWuhan 430070China

Using ABAQUS FEM software,the Elastic-plastic with isotropic hardening model is applied to simulate 3D cylinder slab rolling forming in continuous casting (CC),the change of liquid core before slab solidification completely on soft re- duction process is studied,the analyse result shows the soft reduction technique can change the liquid core size,which is useful to cylinder slab forming in CC.

关键词： continuous casting liquid core soft reduction simulation

Performance of rapid-grown KDP crystals with continuous filtration

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High Power Laser Science and Engineering 2015年第1期3卷 110-115页

作者： Guohang Hu Yueliang Wang Junxiu Chang Xiaoyi Xie Yuanan Zhao Hongji Qi Jianda Shao Key Laboratory of Materials for High Power Laser Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences University of Chinese Academy of Sciences

Rapid growth processing of KDP crystals was improved by employing continuous filtration to eliminate bulk *** performances of the KDP crystals, including scattering defects, laser damage resistance and transmittance, were measured and analyzed. Compared with rapid-grown KDP without continuous filtration, the transmittance in the nearinfrared was increased by at least 2%, almost all of ‘micron size' defects were eliminated and ‘sub-micron size' defects were decreased by approximately 90%. Laser damage testing revealed that the laser-induced damage thresholds(LIDTs),as well as the consistency of the LIDTs from sample to sample, were improved greatly. Moreover, it identified that‘micron size' defects were the precursors which initiated laser damage at relative lower laser fluence(4–6 J cm^(-2)),and there was a lower correlation between smaller size scattering defects and laser damage initiation. The improved consistency in the LIDTs, attributed to elimination of ‘micron size' defects, and LIDT enhancement originated from the decreased absorption of the KDP crystals.

关键词： continuous filtration defect KDP laser damage rapid growth