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The 5th International Conference on Biomedical Engineering and Biotechnology (ICBEB 2016) Abstracts

BMC MEDICAL IMAGING 2016年第SUPPL 1期16卷 65-65页

作者： [Anonymous] Department of MRI Shandong Medical Imaging Research Institute Affiliated to Shandong University Jinan Shandong 250021 People’s Republic of China Department of Interventional Radiology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong 250021 People’s Republic of China College of Information Science and Technology Engr. Research Center of Digitized Textile & Fashion Tech. for Ministry of Education Donghua University Shanghai 201620 China Intelligent multimedia information processing Lab College of Software Northeastern University Shenyang Liaoning Province 110004 China Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China School of Computer Science and Technology Nanjing Normal University Nanjing China Department of Electrical Engineering The City College of New York CUNY New York USA Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing Nanjing China School of Electronic Science and Engineering Nanjing University Nanjing Jiangsu 210046 China College of Engineering Nanyang Technological University Singapore 639798 Singapore School of Electronic Information Shanghai Dianji University Shanghai China School of Natural Sciences and Mathematics Shepherd University Shepherdstown WV 25443 USA Davis College of Agriculture Natural Resources and Design West Virginia University Morgantown WV 26505 USA State Key Laboratory of Millimeter Waves Southeast University Nanjing 210096 China Center of Medical Physics and Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei China College of Agricultural and Life Sciences University of Florida Gainesville FL 32611 USA Courant Institute of Mathematical Sciences New York University New York NY 10012 USA Translational Imaging Division & MRI Unit Columbia University and New York State Psychiatric Institute New York NY 10032 USA Guangxi Key Laboratory of Manufacturing System & Adv

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Improved chicken swarm optimization

Improved chicken swarm optimization

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IEEE International Conference on Cyber technology in Automation, control, and Intelligent Systems

作者： Dinghui Wu Fei Kong Wenzhong Gao Yanxia Shen Zhicheng Ji Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan University Wuxi Jiangsu China Key Laboratory of Advanced Process Control for Light Industry of Ministry of Education Jiangnan University Wuxi Jiangsu China Dept. of Electrical and Computer Engineering University of Denver Denver CO USA

ISBN: (纸本)9781479987313

Considering the problem that the original chicken swarm optimization algorithm is easy to fall into local optimum because of premature convergence for high-dimensional complex problems, an improved chicken swarm optimization was proposed. In this algorithm, the part of chicks learning from the rooster in their subgroup is added to chick's position update equation, and the inertia weight and learning factor are also introduced. Then eight benchmark functions are used to test the proposed algorithm and the comparison with particle swarm optimization, bat algorithm, and original chicken swarm optimization are also performed. The simulated experimental results showed that the proposed algorithm is able to avoid premature convergence and therefore can escape from local optimum. Especially, the proposed method outperforms other evolutionary algorithms in finding the global optimum for high-dimensional problems.

关键词： Convergence Algorithm design and analysis Particle swarm optimization Benchmark testing Optimization Accuracy Standards

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Multi-innovation observer based fault detection for pitch system of wind turbines

Multi-innovation observer based fault detection for pitch sy...

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IEEE International Conference on Cyber technology in Automation, control, and Intelligent Systems

作者： Dinghui Wu Yanjie Zhai Wenzhong Gao Yanxia Shen Zhicheng Ji Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan University Wuxi Jiangsu China Key Laboratory of Advanced Process Control for Light Industry of Ministry of Education Jiangnan University Wuxi Jiangsu China Dept. of Electrical and Computer Engineering University of Denver Denver CO USA

ISBN: (纸本)9781479987313

Considering the pitch sensor fault of pitch systems in wind turbines, a multi-innovation observer based fault detection method is proposed. The pitch system can be modeled as a second order differential equation. And then the equation is transformed into a state space model. According to the state space model, a multi-innovation observer is designed to estimate the system state. The pitch sensor fault can be detected through the residual which is generated by comparing the state estimation with the output of an actual system. The simulation results show that the proposed approach is able to detect the pitch sensor fault effectively.

关键词： Wind turbines Observers Fault detection Technological innovation Fault diagnosis Shafts

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Effects of electric current pulse on dislocation density and residual stresses of 45 carbon steel workpieces

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Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 2015年 36卷 134-138页

作者： Pan, Long He, Wen Gu, Bang-Ping Zhejiang Province Key Laboratory of Advanced Manufacturing Technology The State Key Laboratory of Fluid Power Transmission and Control Zhejiang University Hangzhou China

The effects of electric current pulse(ECP) on dislocation density and residual stresses of quenched 45 carbon steel were studied. The dislocation density was evaluated by the Modified Williamson-Hall (MWH) method based on XRD pattern. The relationship between dislocation density and residual stresses was analyzed according to the microstructure. The results show that the dislocation density decreases from 1.21×1015 m-2 to 0.80×1015 m-2 caused by ECP treatment, and the residual stress σx is changed from -250 MPa to -142 MPa, and σy is changed from -363 MPa to -172 MPa. The reduction rates of dislocation density and residual stresses of the steel treated by ECP are larger than those of the steel after thermal treatment, which shows that other effects exist except thermal effect. Furthermore, the relationship between dislocation density and residual stresses conforms to Kocks-Mecking model. The dynamic behavior of dislocations is promoted by ECP leading to annihilation of dislocations. Hence, the dislocation density decreases, which is the main reason of the decrease of residual stresses. ©, 2015, Editorial Office of Transactions of Materials and Heat Treatment. All right reserved.

关键词： Residual stresses

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Simulation of dynamic light scattering signal based on AR model

Simulation of dynamic light scattering signal based on AR mo...

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作者： Zhang, Yan Min Qi, Xing Guang Li, Qing Hua School of Electrical Engineering and Automation Qilu University of Technology Jinan 250353 China Key Laboratory of Advanced Manufacturing and Measurement and Control Technology Light Industry in Universities of Shandong China

ISBN: (纸本)9783038351399

According to the autocorrelation function (ACF) of the ultrafine particles, the auto-regressive (AR) model used for dynamic light scattering (DLS) signals simulation can be established. By the method, DLS signals for nanoparticles distribution are simulated respectively and every ACF of simulation signal performs a great agreement with its theory value. The simulation signals were respectively inversed and inversion errors are less than 5.25%. The particles size inversions of Photon Correlation Spectroscopy (PCS) are obtained by Morozov discrepancy principle. Experiments show that the method based on AR model is feasible in DLS signal simulation. © (2014) Trans Tech Publications, Switzerland.

关键词： Dynamic light scattering

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Global Stabilization via Sampled-Data Output Feedback control for a Class of Nonlinear Systems Subject to Time-Delays

Global Stabilization via Sampled-Data Output Feedback Contro...

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第三十四届中国控制会议

作者： Hongyan Chu Chunjiang Qian Jiquan Yang Shengyuan Xu Wenting Zha Department of Energy and Mechanical Engineering Nanjing Normal University Key Laboratory of 3D Printing Equipment and Manufacturing Nanjing Normal University School of Automation Nanjing University of Science and Technology Department of Electrical & Computer Engineering The University of Texas at San Antonio Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University

ISBN: (纸本)9781467374439

This paper considers the problem of global output feedback stabilization via sampled-data control for a class of uncertain nonlinear systems subject to time delays. The system satisfies a lower-triangular linear growth condition with unknown growth rates. A new inductive method is first introduced to estimate the state growth in the presence of time delays and nonvarnishing nonlinearities. When only the output of the system is measurable, with the help of output domination approach, a sampled-data output feedback controller is constructed to solve the global stabilization problem. The proposed sampled-data controller is linear in structure and therefore can be easily implemented in practice.

关键词： Sampled-data,output feedback,time delay,domination approach

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Morphology and the mechanism analysis of CaF2Surface Coated by Al (OH)3

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Rengong Jingti Xuebao/Journal of Synthetic Crystals 2015年 44卷 52-56页

作者： Chen, Zhao-Qiang Xu, Chong-Hai Xiao, Guang-Chun Chen, Hui Ma, Jun Li, Ming School of Mechanical Engineering Shandong University Jinan China School of Mechanical and Automotive Engineering Qilu University of Technology Jinan China Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong Jinan China

CaF2@Al (OH)3composite particle was prepared by heterogeneous nucleation method. Through analysis of the preparation process parameters, it is observed that the Al3+concentration, pH value, and reaction temperature are the factors which have important influences on the coating shape. Optimum process parameters are found as follows: Al3+concentration of 0.15 mol/L, pH value of 7.5, and reaction temperature of 75. The degree of supersaturation Δ C is driving force of Al (OH)3solution crystalline. At last, the nucleary and groth process and mechanism of Al (OH)3coating on CaF2surface were analyzed. © 2015, Chinese Ceramic Society. All right reserved.

关键词： Fluorspar

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Preparation of Al2O3 based nano-micro composite gradient self-lubricating ceramic tool materials

Preparation of Al2O3 based nano-micro composite gradient sel...

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12th IUMRS International Conference on advanced Materials, IUMRS-ICAM 2013

作者： Yi, Ming Dong Xu, Chong Hai Chen, Zhao Qiang Wu, Guang Yong School of Mechanical Engineering Shandong University Ji'nan 250061 China Key Laboratory of Advanced Manufacturing and measurement Control Technology for Light Industry in Universities of Shandong Qilu University of technology Ji'nan 250353 China

ISBN: (纸本)9783038350880

Aiming at the low mechanical property of existing self-lubricating ceramic cutting tool material, a new Al2O3 based nano-micro composite gradient self-lubricating ceramic tool material was developed by applying the design concept of nano-micro composite. The self-lubricating ceramics was composed of ceramic matrix and self-lubricating component, and was prepared by hot pressing technology at a hot-pressing temperature of 1650°C, pressure of 30MPa, and duration of 15min. The model of gradient ceramic tool material is symmetrical composition distribution, and the compositional distribution n and layer number are 1.8 and 7, respectively. The result shows that the interfaces between layers are bonded well and no cracks or defects can be observed. Compare with the homogeneous material, the flexural strength, hardness and fracture toughness of Al2O3 based graded material increase by 74%, 5.2% and 3.9%, respectively. © (2014) Trans Tech Publications, Switzerland.

关键词： Fracture toughness

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Aerodynamic drag reduction of SUV based on underbody cover board

Aerodynamic drag reduction of SUV based on underbody cover b...

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2nd International Conference on Precision Mechanical Instruments and measurement technology, ICPMIMT 2014

作者： Wang, Jing Yu Wang, Bao Yu Hu, Xing Jun Liao, Lei State Key Laboratory of Automotive Simulation and control Jilin University Changchun 130025 China Key Laboratory of Advanced Manufacturing Technology for Automobile Parts Ministry of Education Chongqing University of Technology Chongqing 400054 China

ISBN: (纸本)9783038351948

The principles and method of computational fluid dynamics were applied to numerical simulate the external flow field about the SUV model. The hybrid mesh of tetrahedral and triangular prismatic as well as the turbulence model of Realizable k-Ε was adopted to study the flow field of SUV of flat underground. Then the SUV of complex underground was simulated with the same mesh strategy and boundary condition. The aerodynamic drag coefficient of latter was bigger than former. That illuminated the complex underground has affect to aerodynamic performance of vehicle. The wind tunnel test validated the veracity of numerical simulation. Based on that, the underground cover board was appended;the aerodynamic drag coefficient was depressed. The velocity and pressure distribution and flow line were achieved. The conclusions provide theoretical reference for the further study of aerodynamic drag reduction of complex underground. © (2014) Trans Tech Publications, Switzerland.

关键词： Aerodynamics

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An Intensive Automatic Warehousing System Based on Two-Way Shuttle Plate

An Intensive Automatic Warehousing System Based on Two-Way S...

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2014 International Conference on Industrial Engineering and Information technology

作者： Min-de SHEN Peng ZHANG Lan-qiang CONG Cheng-min GAO Qilu University of Technology Key Laboratory of Advanced Manufacturing and Measurement Control Technology for Light Industry in Universities of Shandong

In this paper,an intensive automatic warehousing system based on two-way shuttle plate has been ***-way shuttle plate has the function of traveling along a vertical and crossing path on the plane,which can be transferred between different storage channels by oneself,to improve the storage efficiency of *** the scheduling method of traveling for two-way shuttle plate has been introduced.

关键词： Haulage roadway,intensive automatic warehousing system,two-way shuttle plate,vertical and crossing path

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