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arXiv 2017年

作者： Joshi, Siddarth Koduru Pienaar, Jacques Ralph, Timothy C. Cacciapuoti, Luigi McCutcheon, Will Rarity, John Giggenbach, Dirk Lim, Jin Gyu Makarov, Vadim Fuentes, Ivette Scheidl, Thomas Beckert, Erik Bourennane, Mohamed Bruschi, David Edward Cabello, Adan Capmany, Jose Carrasco-Casado, Alberto Diamanti, Eleni Dusek, Miloslav Elser, Dominique Gulinatti, Angelo Hadfield, Robert H. Jennewein, Thomas Kaltenbaek, Rainer Krainak, Michael A. Lo, Hoi-Kwong Marquardt, Christoph Milburn, Gerard Peev, Momtchil Poppe, Andreas Pruneri, Valerio Renner, Renato Salomon, Christophe Skaar, Johannes Solomos, Nikolaos Stipčević, Mario Torres, Juan P. Toyoshima, Morio Villoresi, Paolo Walmsley, Ian Weihs, Gregor Weinfurter, Harald Zeilinger, Anton Zukowski, Marek Ursin, Rupert Institute for Quantum Optics and Quantum Information Austrian Academy of Sciences Boltzmanngasse 3 ViennaA-1090 Austria Centre for Quantum Computation & Communication Technology Department of Physics University of Queensland St LuciaQLD4072 Australia European Space Agency Keplerlaan 1 - P.O. Box 299 AG Noordwijk ZH2200 Netherlands Department of Electrical and Electronic Engineering University of Bristol Merchant Venturers Building Woodland Road BristolBS8 1UB United Kingdom German Aerospace Center Institute of Communications and Navigation Muenchner Strasse 20 Wessling82234 Germany Institute for Quantum Computing Department of Electrical and Computer Engineering University of Waterloo WaterlooONN2L 3G1 Canada Institute for Quantum Computing Department of Physics and Astronomy University of Waterloo WaterlooONN2L 3G1 Canada Precision Engineering Department Fraunhofer IOF Albert-Einstein-Straße 7 Jena07745 Germany Physics department Stockholm University Albanova universitetscentrum Universitetsvägen 10 Stockholm114 18 Sweden York Centre for Quantum Technologies Department of Physics University of York HeslingtonYO10 5DD United Kingdom University of Seville SevillaE-41012 Spain iTEAM Research Institute Universitat Politcnica de Valencia Valencia46022 Spain 4-2-1 Nukui-Kitamachi Koganei Tokyo184-8795 Japan CNRS Universite Pierre et Marie Curie Paris75005 France Department of Optics Faculty of Science Palacky University 17. Iistopadu 12 Olomouc772 00 Czech Republic Max Planck Institute for the Science of Light Bldg. 24 Günther-Scharowsky Str. 1 ErlangenD-91058 Germany Piazza Leonardo da Vinci 32 Milano20133 Italy School of Engineering University of Glasgow GlasgowG12 8LT United Kingdom Vienna Center of Quantum Science and Technology Faculty of Physics University of Vienna Boltzmanngasse 5 ViennaA-1090 Austria NASA Goddard Space Flight Center GreenbeltMD20771 United States Center for Quantum Information and Quantum Con

Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest that quantum properties, such as entanglement, may exhibit entirely different behavior to purely classical systems. By measuring this effect or lack thereof, we can test the hypotheses behind several such models. For instance, as predicted by Ralph and coworkers [T C Ralph, G J Milburn, and T Downes, Phys. Rev. A, 79(2):22121, 2009;T C Ralph and J Pienaar, New Journal of Physics, 16(8):85008, 2014], a bipartite entangled system could decohere if each particle traversed through a different gravitational field gradient. We propose to study this effect in a ground to space uplink scenario. We extend the above theoretical predictions of Ralph and coworkers and discuss the scientific consequences of detecting/failing to detect the predicted gravitational decoherence. We present a detailed mission design of the European Space Agency's (ESA) Space QUEST (Space - Quantum Entanglement Space Test) mission, and study the feasibility of the mission scheme. Copyright © 2017, The Authors. All rights reserved.

关键词： Quantum entanglement

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Light scattering by globules in an absorbing medium

Light scattering by globules in an absorbing medium

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International Forum on Strategic technology, IFOST

作者： Juan Wu Zhen Zhou Guochao Ding Huiying Liu College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China Heilongjiang Electric Power Research Institute Harbin China

The conventional Mie-scattering calculation has been widely used for spherical particles existed in a vacuum and homogeneous nonabsorbing medium. The paper investigates the radiative properties of particles existed in absorbing medium, including light absorption, extinction efficiencies, scattering efficiencies and so on. This study presents milk fat globule in ethyl acetate solution (EAS) and monoethanolamine (MEA) solution including their complex refractive index. The complex refractive index of milk fat globules at 20 °C was measured at 633 nm and was calculated to be 1.46+0.000005i, the complex refractive of EAS was measured at 633nm and was separately calculated to be 1.476 + 0.0005583169i. We considered the calculation difference of the efficiency factors by comparing results from inherent efficiencies and apparent efficiencies of milk fat globule in absorbing medium by simulation in MATALAB. By simulation it is proved that the light scattering by globules is affected by absorbing medium, so modifying Mie scattering calculation is necessary.

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Discussions about cooperative modeling between electricity substation and control center

Discussions about cooperative modeling between electricity s...

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2013 2nd International Conference on Sustainable Energy and Environmental engineering, ICSEEE 2013

作者： Zhang, Jia An Xu, Tao Xu, Sheng Fan, Guang Min Huang, Zhi Gang Guo, Ling Xu Liu, Hai Feng Liu, Ning Meng, Xin Yi School of Control Science and Engineering Hebei University of Technology Tianjin 300130 China School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China Tianjin Electric Power Dispatching and Communication Center Tianjin 300010 China

ISBN: (纸本)9783038350217

Power grid modeling, data maintenance and management in substation and control center are based on IEC61850 standard and IEC61970 standard respectively. The difference between the two standards inevitably affects the data sharing and maintainability of grid models and the operational efficiency of the whole system. The key issues concerning on cooperative modeling, such as power equipment collaborative naming mechanism, mutual mapping between SCL and CIM, constructing complete model for traditional substation, power grid model segmentation and merging are discussed in detail. The analysis shows that collaborative modeling is imperative for power grid to improve efficiency, reduce workload and enhance power system intelligent level in the future. © (2014) Trans Tech Publications, Switzerland.

关键词： Electric power transmission networks

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A cooperative modeling scheme between power transformer substation and control center 4

A cooperative modeling scheme between power transformer subs...

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2014 4th IEEE International Conference on Information Science and technology, ICIST 2014

作者： Jiaan, Zhang Tao, Xu Wei, Liang Sheng, Xu Lingxu, Guo Zhigang, Huang Guangmin, Fan School of Control Science and Engineering Hebei University of Technology Tianjin300130 China School of Electrical Engineering and Automation Tianjin University Tianjin300072 China Tianjin Electric Power Dispatching and Communication Center Tianjin300010 China

ISBN: (纸本)9781479948086

To meet the requirements for power grid data sharing and model maintenance, this paper proposes a cooperative modeling scheme between transformer substations and the control center. The implementation is based on chartmodel integration in which power grid data and graphics are described interactively. The models cover the standards of the 61850 and 61970. The SCL described substation configurations such as ICD, SCD, SSD and CID files may be derived from the integrated model for intelligent substation assembling. The CIM model and the SVG graphics may be also derived from it. The integrated model is applicable for substation modeling and grid model merging. The scheme facilitates the power grid data sharing and the equipment model maintenance both in the substation and the control center. © 2014 IEEE.

关键词： Electric power transmission networks

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A wireless MEMS-sensor module for three-dimensional gait analysis

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ICIC Express Letters 2014年第4期8卷 1165-1170页

作者： Yin, Zhijian Ning, Haojie Yin, Jibin Inoue, Yoshio Liu, Tao College of Communication and Electronics Jiangxi Science and Technology Normal University Fenglin Rd. Bei District Nanchang 330013 China School of Control Theory and Engineering Kunming University of Science and Technology No. 68 Wenchang Road Kunming 650093 China School of Systems Engineering Kochi University of Technology Tosayamada Kami-city Kochi 782-8502 Japan INSENCO R and D LAB. INC. Tokyo Japan

Recently, Micro Electro Mechanical Systems (MEMS) sensor chips are widely used for human motion analysis because of their high-precision measurement, compact structures and the lower cost. In our research, a group of new multi-axis MEMS sensors including a six-axial motion module (MPU6050, including a triaxial gyroscope and triaxial accelerometer), and triaxial magnetometer (HMC5883L) were incorporated to construct a nine degrees of freedom MEMS-sensor module, which can communicate with a personal computer through a WIFI module. The sensor module can implement the ambulatory orientation measurements, the wireless data sampling, and the synchronization function with other sensing and motion capturing devices. To test the accuracy of the nine degrees of freedom motion MEMS-sensor module, validation experiments were performed in a work bench. Experimental results supported the fact that the wireless MEMS-sensor module can be used to measure three-dimensional (3D) orientations with an acceptable precision. © 2014 ISSN 1881-803X.

关键词： Magnetometers

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Research on a liquid color detecting device

Research on a liquid color detecting device

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2014 International Conference on Electronic engineering and Information Science, ICEEIS 2014

作者： Zhou, Zhen Li, Di Xing Qin, Yong Liu, Li Feng School of Measurement and Communication Engineering Harbin University of Science and Technology HeiLongJiang Harbin 150080 China The Higher Educational Key Laboratory on Measuring and Control Technology Instrumentations of Heilongjiang Province HeiLongJiang Harbin 150080 China

ISBN: (纸本)9783038351467

At present, the error rate of color detecting device is generally between 1%-5%, and mainly for the solids. To improve the detection accuracy further, and adapt liquid color detection, this research uses a new method to build light paths, and combines the United States TAOS's TCS3200 color sensor and STM32 microcontroller. A new type of liquid color detecting device is designed, system structure and testing process of the device are also given. This device has more than 10-bit A/D conversion accuracy, 0.5% or less error rate, and less than 30% of the price of similar products. It has broad promotion and application prospects, and can be widely used in chemistry, biology, grain and other fields. © (2014) Trans Tech Publications, Switzerland.

关键词： Color

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An improved clustering algorithm for wireless sensor networks

An improved clustering algorithm for wireless sensor network...

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2014 International Conference on Materials Science and Computational engineering, ICMSCE 2014

作者： Zhou, Xi Yi Liu, Li Qiang Zhang, Ge School of Information and Communication Engineering Hunan Institute of Science and Technology Yueyang 414006 China Key Laboratory of Optimization and Control for Complex Systems College of Hunan Province Yueyang 414006 China

ISBN: (纸本)9783038350996

An on-demand weighed clustering algorithm is proposed against the limitation of wireless sensor network nodes with limited energy. This algorithm obtains more local network information by means of information interaction between nodes, and by comprehensively considering such factors as the current energy value, degree and transmission power, etc. of nodes, it makes different clustering decisions as per different application backgrounds of networks. Simulation results show that this algorithm has a more rational clustering by reducing energy consumption and lengthening network lifetime, compared to Low Energy Adaptive Clustering Hierarchy, a representative clustering algorithm. © (2014) Trans Tech Publications, Switzerland.

关键词： Clustering algorithms

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Cross-layer in MIMO-OFDM System with Adaptive Modulation and Coding:Design and Analysis

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Chinese Journal of Electronics 2014年第2期23卷 371-376页

作者： ZHAO Junhui GUAN Xin LI Xiuping ZENG Longji State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University National Mobile Communications Research Laboratory Southeast University Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences School of Electronic Engineering Beijing University of Posts and Telecommunications

The queuing performance of the cross-layer system with Space-time block code(STBC) over Multiinput-multi-output(MIMO) channel is analyzed. The Adaptive modulation and coding(AMC) in physical layer and finite length of buffer in data-link layer are combined with this model. A simple cross-layer design and the queue state process are proposed based on finite state Markov channel model, which is to solve the service process. The proposed cross-layer design is also incorporated with STBC to further improve the system performance. Simulation results illustrate the dependence of system performance on various parameters, and quantify the performance gain due to cross-layer optimization. The adjustment of target packet loss rate of adaptive modulation coding in physical layer can maximize average throughput of the system,meanwhile a significant improvement of the system performance is brought.

关键词： Adaptive modulation and coding Crosslayer design Multi-input-multi-output Space-time block coding

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Estimation of Battery State of Health Using Back Propagation Neural Network

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Computer Aided Drafting,Design and Manufacturing 2014年第1期24卷 60-63页

作者： CHANG Cheng LIU Zheng-yu HUANG Ye-wei WEI De-qi ZHANG Li ATECH Automotive Wuhu Co. Ltd School of Machinery and Automobile Engineering Hefei University of Technology Engineering Research Center of Safety-critical Industry Measure and Control Technology of Ministry of Education

100 pieces of 26650-type Lithium iron phosphate（LiFePO4） batteries cycled with a fixed charge and discharge rate are tested, and the influence of the battery internal resistance and the instantaneous voltage drop at the start of discharge on the state of health（SOH） is discussed. A back propagation（BP） neural network model using additional momentum is built up to estimate the state of health of Li-ion batteries. The additional 10 pieces are used to verify the feasibility of the proposed method. The results show that the neural network prediction model have a higher accuracy and can be embedded into battery management system（BMS） to estimate SOH of LiFePO4 Li-ion batteries.

关键词： LiFePO4 battery state of health neural network prediction model

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Application of CMAC neural network coupled with active disturbance rejection control strategy on three-motor synchronization control system

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Sensors and Transducers 2014年第4期169卷 179-185页

作者： Li, Hui Liu, Xingqiao Li, Jing School of Electrical and Information Engineering Jiangsu University Xue Fu road No. 301 Zhen Jiang Jiang Su province China Huaiyin Institute of Technology Mei Cheng road No. 1 Huai An Jiang Su province China Key Laboratory of Machinery industry agriculture measure and control technology and equipment Jiangsu University Xue Fu road No. 301 Zhen JiangJiang Su province China

Three-motor synchronous coordination system is a MI-MO nonlinear and complex control system. And it often works in poor working condition. Advanced control strategies are required to improve the control performance of the system and to achieve the decoupling between main motor speed and tension. Cerebellar Model Articulation controller coupled with Active Disturbance Rejection control (CMAC-ADRC) control strategy is proposed. The speed of the main motor and tensions between two motors is decoupled by extended state observer (ESO) in ADRC. ESO in ADRC is used to compensate internal and external disturbances of the system online. And the anti interference of the system is improved by ESO. And the same time the control model is optimized. Feedforward control is implemented by the adoption of CMAC neural network controller. And control precision of the system is improved in reason of CMAC. The overshoot of the system can be reduced without affecting the dynamic response of the system by the use of CMAC-ADRC. The simulation results show that: the CMAC-ADRC control strategy is better than the traditional PID control strategy. And CMAC-ADRC control strategy can achieve the decoupling between speed and tension. The control system using CMAC-ADRC have strong anti-interference ability and small regulate time and small overshoot. The magnitude of the system response incited by the interference using CMAC-ADRC is smaller than the system using conventional PID control 6.43 %. And the recovery time of the system with CMAC-ADRC is shorter than the system with traditional PID control 0.18 seconds. And the triangular wave tracking error of the system with CMAC-ADRC is smaller than the system with conventional PID control 0.24 rad/min. Thus the CMAC-ADRC control strategy is a good control strategy and is able to fit three-motor synchronous coordinated control. © 2014 IFSA Publishing, S. L.

关键词： Feedback

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