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Geomechanical terms of use of the mill tailings for preparation

Metallurgical and Mining Industry 2015年第4期7卷 321-324页

作者： Golik, Vladimir Komashchenko, Vitaly Morkun, Vladimir Geophysical institute of the Vladikavkaz Russian Academy of Sciences Vladikavkaz Russia Belgorod State National Research University Belgorod Russia Computer Science Automation and Control Systems department State Higher Educational Institution Kryvyi Rih National University Ukraine

Geomechanical conditions of use of the utilized tails of enrichment of metallic mineral raw materials as the hardening stowage mix are proved. The grounds for the geomechanical balance control of the mountain mass preserving the Earth's surface by way of dividing it into safe areas according to their stress rate are indicated. The model of defining the economic and ecological efficiency of the technology using recycled processing tailings is suggested. © Metallurgical and Mining Industry, 2015.

关键词： Hardening

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STATE FEEDBACK STABILIZATION FOR A CLASS OF NONLINEAR TIME-DELAY SYSTEMS VIA DYNAMIC LINEAR controlLERS

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Journal of Systems Science & Complexity 2014年第3期27卷 453-462页

作者： CHAI Lin QIAN Chunjiang School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Southeast University Department of Electrical and Computer Engineering University of Texas at San AntonioSan AntonioTX 78249USA

The dynamic linear state feedback control problem is addressed for a class of nonlinear systems subject to ***,using the dynamic change of coordinates,the problem of global state feedback stabilization is solved for a class of time-delay systems under a type of nonhomogeneous growth *** the aid of an appropriate Lyapunov-Krasovskii functional and the adaptive strategy used in coordinates,the closed-loop system can be globally asymptotically stabilized by the dynamic linear state feedback *** growth condition in perturbations are more general than that in the existing *** correctness of the theoretical results are illustrated with an academic simulation example.

关键词： Dynamic linear controller global stabilization nonlinear time-delay systems state feed-back control.

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Possible way of control of heat output in hotwater piping system of district heating

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International Journal of Circuits, Systems and Signal Processing 2015年 9卷 353-361页

作者： Navratil, Pavel Pekar, Libor Klapka, Jindrich Tomas Bata University Zlin Department of Automation and Control Engineering nam. T.G. Masaryka 5555 Zlin760 01 Czech Republic Brno University of Technology Department of Applied Computer Science Technická 2896/2 Brno616 69 Czech Republic

The paper deals with the description possible method of control of a heat output in district heating systems. This control method is called qualitative-quantitative control method of heat output with utilization of prediction of daily diagram of heat supply in hot-water piping systems of district heating. The control method consists in simultaneous and continuous acting of two variables influencing the transferred heat output and in using the prediction of required heat output in a specific locality. The control method should enable elimination of the influence of transport delay between the heat source and heat consumption of individual relatively concentrated consumers. Transport delay can be in the range up to several hours and depends on the length of feeder piping, which can be up to several kilometers, and on the flow speed of heat transfer medium. © 2015, North Atlantic University Union. All rights reserved.

关键词： District heating

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On the conditioning channel capacity of MIMO two-way relay networks against eavesdropper

On the conditioning channel capacity of MIMO two-way relay n...

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International Conference on Communications and Networking in China (CHINACOM)

作者： Jia You Zhangdui Zhong FeiFei Gao Gongpu Wang State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China School of Computer and Information Technology Beijing Jiaotong University Beijing China Department of Automation Tsinghua University Beijing China

ISBN: (纸本)9781479987962

In this paper, we consider the two-way relay network (TWRN) in the presence of an eavesdropper, and construct a noisy amplify-and-forward (AF) algorithm to enhance the physical (PHY) layer security capacity. All the source nodes, the relay and the eavesdropper are equipped with multiple antennas. In the proposed noisy AF scheme, the relay first receives signals from both source nodes, adds weighted artificial noise (AN), and then amplifies and forwards the modified signal to both source nodes. In this scenario, we analyze the effects of AN and the number of relay antennas on the secrecy sum rate for different conditioning channel matrices. It is shown that AN will result in an increased secrecy sum rate, and the channel condition is a key parameter of the system in deciding the sum secrecy rate. Finally, simulation results demonstrate the validity of proposed studies.

关键词： Relays Antennas Security Noise measurement Signal processing algorithms Matrix decomposition MIMO

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Active Disturbance Rejection control for Nonlinear Two-tank Liquid Level Cascade Systems with Model Uncertainties

Active Disturbance Rejection Control for Nonlinear Two-tank ...

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The Society of Instrument and control Engineers Annual Conference 2015

作者： Lijun Wang Fen Zhang Qing Li Yixin Yin Qing Zheng Yumeng Zhang School of Automation & Electrical Engineering University of Science and Technology Beijing Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) University of Science and Technology Beijing Department of Electrical and Computer Engineering Gannon University

Due to the nonlinearities, model uncertainties and disturbances of the two-tank liquid level cascade system,active disturbance rejection controller(ADRC) solution was developed. First, a nonlinear mechanism model and its linearized model were built based on the theories of fluid dynamics for the system. Second, first-order linear ADRCs for the outer loop of the two cascade systems with an unknown order were designed, respectively. With a simple integrator as the normalized type of the feedback system, other parts of dynamic system which are different from the normalized type are treated as the total disturbances. The disturbances were estimated by the second-order linear extended state observer and compensated in the control law. Then the system, with nonlinearities, uncertainties and disturbances, is reduced to only a linear integrator. In comparison with the traditional PI controller, simulation results show that both the proposed ADRCs have better robustness and adaptability against model uncertainties.

关键词： Two-tank systems,nonlinear systems,uncertain systems,cascade systems,active disturbance rejection control

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Stress-induced indirect to direct band gap transition in β-FeSi2 nanocrystals embedded in Si

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AIP Conference Proceedings 2017年第1期1874卷

作者： A. V. Shevlyagin D. L. Goroshko E. A. Chusovitin S. A. Balagan S. A. Dotsenko K. N. Galkin N. G. Galkin T. S. Shamirzaev A. K. Gutakovskii M. Iinuma Y. Terai 1Institute of Automation and Control Processes FEB RAS Radio St. 5 Vladivostok Russia 2Far Eastern Federal University School of Natural Sciences Sukhanova St. 8 Vladivostok Russia 3Rzhanov Institute of Semiconductor Physics SB RAS Lavrentieva Ave.13 Novosibirsk Russia 4Ural Federal University Mira St. 19 Yekaterinburg Russia 5Novosibirsk State University Pirogova St. 2 630090 Novosibirsk Russia 6Department of Computer Science and Electronics Kyushu Institute of Technology Iizuka Fukuoka 820-8502 Japan

Embedded in silicon β-FeSi2 nanocrystals (NCs) were grown on Si(111) by solid phase epitaxy of a thin iron film followed by Si molecular beam epitaxy. After solid phase epitaxy, a mixture of β-FeSi2 and ε-FeSi nanocrystals is formed on the surface, sometimes β and ε phases coexist inside one nanocrystal. During initial stage of Si molecular beam epitaxy all ε-FeSi transforms into β-FeSi2. β-FeSi2 nanocrystals tend to move following Si growth front. By adjusting growth condition, we manage to prevent the nanocrystals from moving and to fabricate 7-layer n-Si(111)/β-FeSi2_NCs/p+-Si silicon heterostructure with embedded β-FeSi2 NCs. An epitaxial relationship and a stress induced in the nanocrystals by silicon matrix were found to be suitable for indirect to direct band gap transition in β-FeSi2. Of the heterostructure, a n-i-p avalanche photodetector and a light-emitting diode were formed. They have shown relatively good performance: ultrabroadband photoresponse from the visible (400 nm) to short-wavelength infrared (1800 nm) ranges owing to quantum-confined Stark effect in the nanocrystals and optical emission power of up to 25 µW at 9 A/cm2 with an external quantum efficiency of 0.009% at room temperature owing to a direct fundamental transition in stressed β-FeSi2 nanocrystals.

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Dynamic Linear controller Design for a Class of High-Order Nonlinear Systems via State-Feedback

Dynamic Linear Controller Design for a Class of High-Order N...

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IEEE Annual Conference on Decision and control

作者： Wenting Zha Chunjiang Qian Junyong Zhai Shumin Fei Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing Jiangsu 210096 China Department of Electrical and Computer Engineering University of Texas at San Antonio San Antonio Texas 78249 USA

ISBN: (纸本)9781479978878

The objective of this paper is to address the linear state-feedback control problem for a family of high-order uncertain nonlinear systems. Based on the adding a power integrator technique, the authors recursively construct a linear controller with dynamic gains, which can be used to deal with the uncertain nonlinear terms and simplify the controller structure. Moreover, it is proved that the proposed control law can globally regulate system states to the origin and guarantee the boundedness of all the signals of the closed-loop system as well. Finally, a simulation example is presented with some comparison with the existing result so as to demonstrate the effectiveness of the proposed design scheme.

关键词： High-order nonlinear systems dynamic linear controller adding a power integrator linear controllers design scheme Uncertain nonlinear system control law State feedback higher-order controller design Closed loop systems state feedback control

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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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Human motion recognition system for ergonomic analysis using the kinect sensor 44

Human motion recognition system for ergonomic analysis using...

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Joint International Symposium on "The Social Impacts of Developments in Information, Manufacturing and Service Systems" 44th International Conference on computers and Industrial Engineering, CIE 2014 and 9th International Symposium on Intelligent Manufacturing and Service Systems, IMSS 2014

作者： Öz, Cemil Öztel, Ismail Öz, Ali Computer Engineering Department Sakarya University Sakarya Turkey Department of Control and Automation Engineering Yildiz Technical University Istanbul Turkey

In this study we discussed the feasibility and implementation of using Microsoft Kinect as a marker less motion capture system to track human motions of an operator performing a task in an industrial workshop. This was achieved by developing an application to use the skeleton tracking data provided by existing API's for Kinect to generate digital human simulations in an ergonomic assessment and virtual human prototyping system that we created with MakeHuman program. The system uses a Microsoft Kinect to extract the human motion features. The x, y, z values of human skeleton joints are obtained from the Kinect using Microsoft Kinect Library and Microsoft c#. The data obtained from this device are processed by noise reduction, Human kinematic parameters calculation and predicting risk of the musculoskeletal disorders modules. The Applications test results show that the developed system can be successfully used human ergonomic analysis. This system is flexible and open for future extensions.

关键词： Ergonomics

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

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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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