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| 1 | Dense coding scheme using superpositions of Bell-states and its NMR implementation显示文摘Dense coding using superpositions of Bell-states is proposed. The generalized Grover's algorithm is used to prepare the initial entangled states, and the reverse process of the quantum algorithm is used to determine the entangled state in the decoding measurement. Compared with the previous schemes, the superpositions of two Bell-states are exploited. Our scheme is demonstrated using a nuclear magnetic resonance (NMR)quantum computer. The corresponding manipulations are obtained. Experimental results show a good agreement between theory and experiment. We also generalize the scheme to transmit eight messages by introducing an additional two-state system. | ZHANG Jingfu, XIE Jingyi, DENG Zhiwei & LU Zhiheng Key Laboratory for Quantum Information and Measurements, Department of Physics, Tsinghua University, Beijing 100084, China Center for Quantum Information, Tsinghua University, Beijing 100084, China Department of Materials Science and Engineering, Beijing Normal University, Beijing 100875, China Testing and Analytical Center, Beijing Normal University, Beijing 100875, China Department of Physics, Beijing Normal University, Beijing 100875, China | 2005 | Science China(Physics,Mechanics & Astronomy)2005，48，1： | 18 |
| 2 | 自动抄表技术的发展状况显示文摘通过对自动抄表几种通讯介质的介绍,论述自动抄表技术的发展。 | Chian National Society for Electromegnetic Measuring and Message-Processing Instrumentation,Hatbin 150040,China) | 2001 | 电测与仪表2001，38，10： | 16 |
| 3 | Particle size characterization by ultrasonic attenuation spectra显示文摘This paper contributes to extracting information from signals of broadband ultrasonic attenuation spectrum for effective utilization in particle size characterization. The single particle scattering model and the coupled-phase model are formulated simultaneously, the relationship between particle size distribution and ultrasonic spectrum is established, and a convergence criterion for calculation is quantified. Demonstration inversion by the optimum regularization factor method is carried out to yield typical numerical results for discussion. With the experimental set-up developed by the Institute of Particle and Two-Phase Flow Measurement (IPTFM) at the University of Shanghai for Science and Technology, sand sediment particle size is measured by attenuation spectrum and analyzed using the above inversion algorithm and theoretical models. To validate the proposed ultrasonic spectrum particle sizing method, results are compared with those obtained by microscopy. | Mingxu Su, Minghua Xue, Xiaoshu Cai, Zhitao Shang, Feng Xu Institute of Particle and Two-Phase Flow Measurement, University of Shanghai for Science and Technology, Shanghai 200093, China | 2008 | Particuology2008，6，4： | 15 |
| 4 | Feature Extraction of Chinese Materia Medica Fingerprint Based on Star Plot Representation of Multivariate Data显示文摘Objective To study a novel feature extraction method of Chinese materia medica(CMM) fingerprint.Methods On the basis of the radar graphical presentation theory of multivariate,the radar map was used to figure the non-map parameters of the CMM fingerprint,then to extract the map features and to propose the feature fusion.Results Better performance was achieved when using this method to test data.Conclusion This shows that the feature extraction based on radar chart presentation can mine the valuable features that facilitate the identification of Chinese medicine. | CUI Jian-xin1,2,HONG Wen-xue1,ZHOU Rong-juan3,GAO Hai-bo1 1.College of Electrical Engineering,Yanshan University,Qinhuangdao 066004,China 2.Key Laboratory of Measurement Technology and Instrumentation of Hebei Province,Qinhuangdao 066004,China 3.Maternal and Child Health Hospital of Qinhuangdao,Qinhuangdao 066004,China | 2011 | Chinese Herbal Medicines2011，3，2： | 14 |
| 5 | RESEARCH ON THE MINIMUM ZONE CYLINDRICITY EVALUATION BASED ON GENETIC ALGORITHMS显示文摘A genetic algorithm (GA)-based method is proposed to solve the nonlinear optimization problem of minimum zone cylindricity evaluation.First, the background of the problem is introduced.Then the mathematical model and the fitness function are derived from the mathematical definition of dimensioning and tolerancing principles.Thirdly with the least squares solution as the initial values, the whole implementation process of the algorithm is realized in which some key techniques, for example, variables representing, population initializing and such basic operations as selection, crossover and mutation, are discussed in detail.Finally, examples are quoted to verify the proposed algorithm.The computation results indicate that the GA-based optimization method performs well on cylindricity evaluation.The outstanding advantages conclude high accuracy, high efficiency and capabilities of solving complicated nonlinear and large space problems. | Cui ChangcaiChe RenshengYe DongHuang QingchengDepartment of Automatic Measurement and Control,Harbin Institute of Technology, Harbin 150001, China | 2003 | Chinese Journal of Mechanical Engineering2003，16，2： | 9 |
| 6 | Entropy product measure for multipartite pure states显示文摘An entanglement measure for multipartite pure states is formulated using the product of the von Neumann entropy of the reduced density matrices of the constituents. Based on this new measure, all possible ways of the maximal entanglement of the triqubit pure states are studied in detail and all types of the maximal entanglement have been compared with the result of ‘the average entropy’. The new measure can be used to calculate the degree of entanglement, and an improvement is given in the area near the zero entropy. | CAO Wancang1,2, LIU Dan2, PAN Feng3 & LONG Guilu2,4 1. Department of Physics, Chifeng College, Chifeng 024001, China 2. Key Laboratory for Quantum Information and Measurements, Department of Physics, Tsinghua University, Beijing 100084, China 3. Department of Physics, Liaoning Normal University, Dalian 116029, China 4. Key Laboratory for Atomic and Molecular Nano-Sciences, Tsinghua University, Beijing 100084, China Correspondence should be addressed to Long Guilu | 2006 | Science China(Physics,Mechanics & Astronomy)2006，49，5： | 8 |
| 7 | Implementation of a multiple round quantum dense coding using nuclear magnetic resonance显示文摘A multiple round quantum dense coding scheme based on the quantum phase estimation algorithm is proposed and implemented in a three qubit nuclear magnetic resonance (NMR) quantum computer. Using an m + 1 qubit system, Bob can transmit one of 2m+1 messages to Alice, through manipulating only one qubit and exchanging it between Alice and Bob for m rounds. The information capacity is enhanced to m + 1 bits as compared to m bits in a classical scheme. The scheme has been demonstrated in NMR system, and the experimental results show a good agreement between theory and experiment. | ZHANG Jingfu1, XIE Jingyi2, WANG Chuan1, DENG Zhiwei3, LU Zhiheng4, & LONG Guilu1,5 1. Key Laboratory For Quantum Information and Measurements of MOE, Department of Physics, Tsinghua University, Beijing 100084,China 2. Department of Materials Science and Engineering, Beijing Normal University, Beijing 100875, China 3. Testing and Analytical Center, Beijing Normal University, Beijing 100875,China 4. Department of Physics, Beijing Normal University, Beijing 100875, China 5. Key Laboratory For atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084,China | 2005 | Science China(Physics,Mechanics & Astronomy)2005，48，6： | 8 |
| 8 | GPS short-delay multipath estimation and mitigation based on least square method显示文摘The GPS multipath signal model is presented,which indicates that the coherent DLL outputs in multipath environment are the convolution between the ideal DLL outputs and the channel responses.So the channel responses can be estimated by a least square method using the observed curve of the DLL discriminator.In terms of the estimated multipath channels,two multipath mitigation methods are discussed,which are equalization filtering and multipath subtracting,respectively.It is shown,by computer simulation,that the least square method has a good performance in channels estimation and the multipath errors can be mitigated almost completely by either of the methods.However,the multipath subtracting method has relative small remnant errors than equalization filtering. | Zhang Shengkang~(1,2),Wang Hongbo~(1,2),Yang Jun~(1,2) & He Leiming~(1,2) 1.Beijing Inst.of Radio Metrology and Measurement,Beijing 100854,P.R.China 2.National Key Laboratory of Metrology and Calibration Technology,Beijing 100854,P.R.China | 2009 | Journal of Systems Engineering and Electronics2009，20，5： | 6 |
| 9 | Surface investigation on Upilex-S polymide film iradiated by vacuum ultraviolet radiation显示文摘Vacuum ultraviolet radiation of Upilex-S polyimide film 25 μm thick was performed using a gas jet type of vacuum ultraviolet simulator which gives unfixed wavelength from 5 nm to 200 nm.Nanoparticles redeposited on the films were observed and the nanoparticles formed on the surface consist mainly of carbon clusters.Changes in the composition and the chemical characteristics of film surface after radiation were identified by X-ray photoelectron spectroscopy(XPS).Relative O content in the radiated area was found to be higher,while N content was lower than in the pristine area.This indicates that Upilex-S polyimide film releases N atoms as volatile species.And the C1s,O1s envelopes were fitted using Multipak Spectrum software.The surface morphologies on iradiated area were examined by Atomic Force Microscope(AFM).Pieces of radiant products protrude from the eradiated surface,leading to considerable roughness for the iradiated area.And the surface transmittance of Upilex-S film after radiation reduces. | LIU Yuyan1),GONG Xianyun2),WAN Zhimin3),and DU Xingwen4)1) Department of Applied Chemistry,Harbin Institute of Technology,Harbin 150001,China 2) Department of Life Science and Chemistry,Harbin University,Harbin 150001,China 3) Analysis and Measurement Center,Harbin Institute of Technology,Harbin 150001,China 4) Center for Composite Materials,Harbin Institute of Technology,Harbin 150001,China | 2007 | Rare Metals2007，26，S1： | 5 |
| 10 | Grey Markov chain and its application in drift prediction model of FOGs显示文摘A novel grey Markov chain predictive model is discussed to reduce drift influence on the output of fiber optical gyroscopes (FOGs) and to improve FOGs’ measurement precision. The proposed method possesses advantages of grey model and Markov chain. It makes good use of dynamic modeling idea of the grey model to predict general trend of original data. Then according to the trend, states are divided so that it can overcome the disadvantage of high computational cost of state transition probability matrix in Markov chain. Moreover, the presented approach expands the applied scope of the grey model and makes it be fit for prediction of random data with bigger fluctuation. The numerical results of real drift data from a certain type FOG verify the effectiveness of the proposed grey Markov chain model powerfully. The Markov chain is also investigated to provide a comparison with the grey Markov chain model. It is shown that the hybrid grey Markov chain prediction model has higher modeling precision than Markov chain itself, which prove this proposed method is very applicable and effective. | Fan Chunling 1,2 , Jin Zhihua1, Tian Weifeng1 & Qian Feng11. Department of Information Measurement Technology and Instrument, Shanghai Jiaotong University,Shanghai 200030, P. R. China 2. College of Automation and Electric Engineering, Qingdao University of Science and Technology,Qingdao 266042, P. R. China | 2005 | Journal of Systems Engineering and Electronics2005，16，2： | 5 |
| 11 | High Efficiency ELID Grinding of Garnet Ferrite显示文摘Hard and brittle materials such as ferrite, optical glass and ceramics have been widely used in many fields because of their good characteristics and still gain more attentions. However, it is difficult to machine and get good surface quality. Some parts made of these materials have large machining allowances and need to be produced with large batch, but the machining efficiency is very low with usual grinding method. So it is of great importance to research the high efficiency grinding technology of hard and brittle materials. Electrolytic in-process dressing (ELID) grinding is a new grinding technology which has been adopted to the ultra-precision machining of hard and brittle materials. With the function of in-process dressing of metal bond diamond and CBN wheel, ELID grinding has the ability to keep the sharpness of the wheel surface and is widely used in fine abrasive grinding, but it also has the potentialities to high efficiency grinding. In this paper, the mechanism of ELID grinding and its grinding performance are analyzed, then the cast iron bond diamond wheels and ELID grinding device are used on a surface grinder to research the feasibility of ELID grinding to high efficiency grinding. To make comparison, the garnet ferrite (YAG) work piece has been machined in plunge grinding both by ELID grinding and by the resin bond diamond wheel. The grinding force and surface quality are tested and analyzed. It has been found that the grinding force of the cast iron bond diamond wheel with ELID grinding is apparently smaller than that of the resin bond diamond wheel. Under the same conditions, it is about 2/5~3/5 as the force using the resin bond diamond wheel. So with the same grinder and machining conditions, ELID grinding can machine work piece with greater depth of cut. Because of the smaller grinding force, it is also beneficial to avoid the edge collapse of the work piece and keep the integrity of the grinding surface. This experiment shows that the grinding efficiency can be highly improved and the surface quality be ensured by applying ELID grinding technology and adopting large grinding depth. The results indicate that the ELID grinding technology can be effectively used in the high efficiency machining of garnet ferrite and other hard and brittle materials. | ZHANG Fei-hu 1, QIU Zhong-jun 1, KANG Gui-wen 1, YUAN Zhe-jun 1, YANG Yong-shan 2, SHI Xing-kuan 2 (1. Department of Mechanical Manufacturing and Automation, Harbin Institute of Technology, Harbin 150001, China 2. Beijing Radio Measuring Institute, Beijing 100854, China) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 4 |
| 12 | ARTIFICIAL NEURAL NETWORKS-MODELING, PROGRAMMING AND APPLICATION IN MATERIAL HOT WORKING显示文摘The developments of modern mathematics and computer science make artificial neural networks become most useful tools in wide range of fields. Modeling methods of artificial neural networks are described in this paper. The programming technique by using Matlab neural networks toolbox is discussed. The application in Material Hot Working of neural networks is also introduced. | H. T. Li Y. Deng and J. T. Niu (Analysis and Measurement Center, Harbin Institute of Technology, Harbin 150001, China) | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 4 |
| 13 | Diffusion bonding between nickel-base superalloy K24 and heat-resisting steel 1Cr11Ni2W2MoV显示文摘Diffusionbondingbetweennickel-basesuperalloyK24andheat-resistingsteel1Cr11Ni2W2MoV￥ZHANGJie;ZHANGJiuhai;HANWenboandLIZhuoran(... | ZHANG Jie ZHANG Jiuhai HAN Wenbo and LI Zhuoran(Measuring and Analysis Center,School of Materials Science and Engineering, Harbin Institute of Technology,Harbin,150080.China) | 1996 | China Welding1996，5，2： | 4 |
| 14 | Color 3D Reverse Engineering显示文摘This paper presents a principle and a method of col or 3D laser scanning measurement. Based on the fundamental monochrome 3D measureme nt study, color information capture, color texture mapping, coordinate computati on and other techniques are performed to achieve color 3D measurement. The syste m is designed and composed of a line laser light emitter, one color CCD camera, a motor-driven rotary filter, a circuit card and a computer. Two steps in captu ring object’s images in the measurement process: First, the color CCD camera ta kes the color picture of the object to be used for texture mapping in post proce ssing. Secondly, the monochrome data of the object is taken. The laser light emi tter is started; the light plane and the surface of the object intersect to form an undulate line, which forms an image on the CCD sensor. After the optic- electronics transformation, the electronic signals are captured and send to the computer. A new color 3D measurement model was derived, and a rapid calibra ting method to measure the system parameters was proposed--optical plane equat ion calibrating method. A calibrating drone was designed and built. 3D color sca nning system not only provides an object’s individual point information in the 3D coordinate, in the mean time, it provides the color information of each indiv idual point. This paper also advances a multi-frame auto-merging method, i.e. several frames of color 3D digital images measured are merged quickly according to their curvature characteristics and RGB information. Initial matching and fin e tune of the registration are completely performed by the computer; initial mat ching is via user interface in helping computer to find the transformation matri x. The transformation matrix is found according to the geometric characteristics chosen by hand. After the initial transformation matrix is found, fine tune of the registration is preformed to do the optimum adjustment to achieve a complete color textured 3D model. The system can be broadly used in the fields of produc t design, mold manufacture, multimedia, game development, animation, medical eng ineering, antique digitization, etc. | XU Zhi-qin 1, YE Sheng-hua 1, FAN Guang-zhao 2 (1. School of Precision Instrument and Opto-electronics Engineering, N ational Key Lab of Measurement Technology and Instrument, EMC, Tianjin University, Tianjin, China 2. Department of Mechanical Engineering, National Taiwan University, Taiwan, Chi na) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 3 |
| 15 | Robotic Etiquette:Socially Acceptable Navigation of Service Robots with Human Motion Pattern Learning and Prediction显示文摘Nonverbal and noncontact behaviors play a significant role in allowing service robots to structure their interactions withhumans.In this paper, a novel human-mimic mechanism of robot’s navigational skills was proposed for developing sociallyacceptable robotic etiquette.Based on the sociological and physiological concerns of interpersonal interactions in movement,several criteria in navigation were represented by constraints and incorporated into a unified probabilistic cost grid for safemotion planning and control, followed by an emphasis on the prediction of the human’s movement for adjusting the robot’spre-collision navigational strategy.The human motion prediction utilizes a clustering-based algorithm for modeling humans’indoor motion patterns as well as the combination of the long-term and short-term tendency prediction that takes into accountthe uncertainties of both velocity and heading direction.Both simulation and real-world experiments verified the effectivenessand reliability of the method to ensure human’s safety and comfort in navigation.A statistical user trials study was also given tovalidate the users’favorable views of the human-friendly navigational behavior. | Kun Qian,Xudong Ma,Xianzhong Dai,Fang Fang Key Lab of Measurement and Control of Complex Systems of Engineering (Ministry of Education,China), Southeast University,Nanjing 210096,P.R.China | 2010 | Journal of Bionic Engineering2010，7，2： | 3 |
| 16 | Nonlinear analysis on the coupling process of electromagnetic vibrator and earth显示文摘The linear model based on the hydraulic pressure vibrator has been no longer adaptable to the electromagnetic vibrator. In order to realize the effective transmission of the limited energy from the vibrator to the ground, it is important to study the coupling model of the electromagnetic vibrator and the earth. In this paper, a nonlinear restore term was introduced to the coupling model because of the existence of a large amount of harmonics in the vibrator baseplate. The nonlinear vibration analysis was applied to the model by the multiscale method. In the course of energy transmission from the vibrator to the ground, ultraharmonic resonance was used to explain the generation of harmonics. An improved scheme was advanced to select the cross correlation reference signal in the vibrator seismic exploration. Good application results were obtained in field experiments. | CHEN Zubin1,2, TENG Jiwen2, LIN Jun1, ZHANG Linhang1 & JIANG Zhongjin1 1. Institute of Intelligent Instrument & Measurement Control Technology, Jilin University, Changchun 130026, China 2. Institute of Geology & Geophysics, Chinese Academy of Sciences, Beijing 100029, China | 2005 | Science China Earth Sciences2005，48，8： | 3 |
| 17 | NUMERICAL SIMULATION METHODS AND THEIR APPLICATION IN MATERIAL HOT-WORKING显示文摘With the development of modern science and technology, especially computer science, the numerical simulation method has been widely used in material hot-working. Mary achievements have been made in this field by using the numerical simulation method. The numerical simulation method, especially finite element method fully described in this paper.Applications of the numerical simulation method in material hot-working are also discussed. Finally, the future of the numerical simulation method is outlined. | J. T. Niu, H. T. Li, X. D. Meng and P. Karjaleinen 1) Analysis and Measurement Center, Harbin Institute of Technology, Harbin 150001, China 2) Department of Mechanocal Engineering, The University of Oulu, Finland | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，2： | 3 |
| 18 | PREPARATION AND MICROSTRUCTURE OF NANO-SIZED Cu PARTICLES BY MECHANOCHEMICAL REACTION显示文摘1INTRODUCTIONThemetalparticlewithsizeof1~1000nmiscaledsuperfinemetalparticle.Sincethesuperfinemetalparticleshavesignificantp... | Wu Nianqiang, Su Lizhi, Yuan Mingyong , Liu Yuyong, Wu Jinming and Li Zhizhang Department of Materials Science and Engineering Center of Measure and Analysis, Zhejiang University, Hangzhou 310027, P. R. China | 1998 | 中国有色金属学会会刊:英文版1998，8，4： | 3 |
| 19 | Characteristics for the hybrid cell Foaz obtained from the protoplast fusion between yeast and photosynthetic bacteria in soybean processing wastewater显示文摘CharacteristicsforthehybridcelFoazobtainedfromtheprotoplastfusionbetwenyeastandphotosyntheticbacteriainsoybeanprocesingwastew... | Cheng Shu pei**, Cui Yi binThe State Key Laboratory of Pollution Control and Resource Reuse, Department of Environmental Science and Engineering, Nanjing University, Nanjing 210093, China Dai Le mei The Center of Analysis and Measurement, Nanjing University, Nanjing 210093, China | 1998 | Journal of Environmental Sciences1998，10，3： | 2 |
| 20 | Studies on solid state reactions of coordination compounds LI.Solid state syntheses of a family of Ag-Mo(W)-S cubane-like cluster compounds:Crystal structures of{Ag_3MoS_3I}(PPh_3)_3S and{Ag_3WS_3Cl}(PPh_3)_3S·0.5P(S)Ph_3·3H_2O^+显示文摘Reactions of[NH4]2[MS4](M=Mo,W),AgX(X=Cl,Br,I,CN,SCN)and PPh3in the solid state produced six new mixed-metal sulfur containing cluster compounds,two ofwhich,{Ag3MoS3I}(PPh3)3S(1)and{Ag3WS3Cl}(PPh3)3S·0.5P(S)Ph3·3H2O(2),were determinedby single crystal X-ray analysis.The crystal data:1,triclinic,P,a=12.114(2),b=13.420(2),c=20.346(3),α=74.53(1),β=86.73(1),γ=63.74(1)°,Z=2,R=0.043 for 4805 independentdata;2,hexagonal,R3,a=b=16.201(3),c=45.091(10),Z=6,R=0.042 for 2729 independentdata.The central unit{Ag3MS3X}(M=Mo,W;X=Cl,I)of the two compounds can be des-cribed as a slightly distorted cube,four corners being formed by the MS42- ligand(with a ter-minal S atom).The remaining corners are occupied by one X(Cl or I)atom and three Agatoms(with one PPh3 ligand bound to each of the latter).The generation of different types ofAg-Mo(W)-S cluster compounds prepared from solid state reactions under different reactiontemperatues is discussed. | LANG,Jian-Ping BAO,Shi-An ZHU,Hui-Zhen XIN,Xin-Quan Coordination Chemistry Institute,Nanjing University,Nanjing 210008YU,Kai-Bei Chengdu Center of Analysis and Measurement,Chinese Academy of Sciences,Ckengdu 610015 | 1993 | Chinese Journal of Chemistry1993，11，2： | 2 |
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