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For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Regulation of Spin Filtering Effect in Chrome-Porphyrin Molecules Based on Different Connection Configurations LI Meihua, YE Fuqiu, ZHANG Jun Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.04.007 Select Load Forecasting Modeling and Simulation of Wind Power Microgrid LI Ming, WANG Lin, LIANG Bing, HU Haize, ZI Chunyuan, MO Yi, FANG Mengge, HU Feiyu Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.04.008 Select Multi-Objective Optimization of 35 kJ YBCO Single-Screw Superconducting Energy Storage Magnet LI Tailai, YANG Yang, YANG Zheng Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.04.009 Select Design of Greenhouse Drip Irrigation System Based on Photovoltaic Power Generation CHEN Xugen, CHEN Ying, FANG Xinyue, WU Wenjing, SUN Yan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.04.010 Select Physical Properties of Freon F-22 in External Electric Field GUAN Yue,QIN Yushuang,LIU Bohan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.02.007 Select Design of a Novel Amplifier-Based Mixer LIU Jing,ZENG Fangyan,LI Yuting,ZHOU Kaiqing Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.02.008 Select Dynamics Analysis of T Chaotic System with Absolute Terms LEI Tengfei，FU Haiyan，BAI Li Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.05.005 Select Design of Capacitive Ground Grid for Over-Voltage of Lightning LIU Linyu,HU Haize,FANG Mengge，PENG Li,WANG Fang Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.05.006 Select Design and Implementation of Optic Fiber Intelligent Pre-Warning System Based on C/S Structure SHENG Zhiyong,AN Qi,QU Hongquan,GAO Bin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.05.007 Select Timing Optimization of Urban Traffic Signal WANG Lei,LI Kerong,TANG Hui,WANG Jiaojiao,SUN Yan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.05.008 Select Representation Transform Theory of Dielectric Function on Plasmons inLow-Dimensional Quantum Systems YANG Zhe,LIU Xinhai Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.02.004 Select Natural Frequencies of Transverse Vibration of Cantilever Rayleigh Beams TANG Anye,WANG Ziguo Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.02.005 Select Current Resonance Control in αβ Coordinate for Railway Static Power Conditioner MA Qian，DAI Yuxing,ZHANG Min Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.02.006 Select Quantitative Raman Spectrum Analysis of Nanoparticle CeO2 Bond Relaxation YANG Xuexuan,YANG Hong,LIAO Wenhu,YE Fuqiu,PENG Jinzhang，LI Lihua Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.04.003 Select Symmetric Dicke States for Arbitrary Qubits by Adiabatic Passage LI Mancang,LI Xiaoli,ZHANG Xiaolong Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.04.004 Select Fast Algorithm for Solving Cost Minimization Problem of Complex System with Unknown Constrained Reliability Function CHEN Li，WANG Jingqin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.04.005 Select Double Negative Acoustic Metamaterials Based on a Soft Slid Plate and Hollow Steel Cylinders DENG Ke，SONG Zonggen，ZHAO Heping Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.006 Select Method of Airborne Passive Ranging Based on Centrifugal Acceleration Information WANG Chunmei，QIAO Liang Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.008 Select Mathematical Description on Whole Physics and Exploration of Non-Euclidean Geometry and Non-Standard Analysis ZHANG Yi-Fang journal6    2016, 37 (1): 28-32.   DOI: 10.3969/j.cnki.jdxb.2016.01.008 Abstract （2209）      PDF（pc） （409KB）（1544）       Knowledge map    Save First，the symbolic dynamics and its geometrization are discussed.Next，some problems in non-Euclidean geometry are studied，such as Culdinus Theorem and Pappus Theorem.Thirdly，the cycle arithmetic，cycle physics and cycle world are discussed.Fourthly，the prime number principles are researched.Finally，the non-standard analysis are explored，in particular，the quantum theory of the non-standard analysis. Reference | Related Articles | Metrics | Comments（0） Select Research on Active Prioritizing Self-Adaptive Traffic Control Strategy of BRT Intersection LEI Chao-Yang, LIU Jun-Hua, CAI Wei-Hong journal6    2016, 37 (1): 33-37.   DOI: 10.3969/j.cnki.jdxb.2016.01.009 Abstract （1900）      PDF（pc） （486KB）（1404）       Knowledge map    Save Currently,the priority control method in BRT intersection is simplex，which only focuses on reducing the time delays of vehicles but neglects the influence on general vehicles.Therefore,active prioritizing self-adaptive traffic control method of BRT intersection is put forward.The method not only focuses on prior traffic of BRT,but pays more attention to overall traffic efficiency in intersection.It can judge the signal condition of intersection through predicting the time that BRT vehicle reaches the parking line of the intersection.And it can adjust control strategy dynamically according to the jam situation in vertical direction to decide whether the priority control strategy should be executed.Simulation result shows that the stop rate of BRT vehicles by adopting active prioritizing adaptive control method is obviously lower than that of regular timing method,and time delay is also obviously lower than that of inductive control method. Reference | Related Articles | Metrics | Comments（0） Select Engineering Application of Super Long-Haul WDM Transmission Designing Solution HUANG Ying, ZHAO Han, CHEN Neng-Song journal6    2016, 37 (1): 38-42.   DOI: 10.3969/j.cnki.jdxb.2016.01.010 Abstract （2268）      PDF（pc） （598KB）（1444）       Knowledge map    Save This paper fully discusses the basic principle of DWDM and introduces all the network elements of DWDM separately.With G.652 dispersion module compensation for G.655 optical fiber and high magnification system with HBA,RPX,and OAU,a super long-haul WDM solution is designed in one real project to connect two citie.The engineering cost is thus reduced. Reference | Related Articles | Metrics | Comments（0） Select Identity-Authentication of the LAN Communication Based on Quantum Contact Transmission LI Zhi-Wei, ZHOU Xiao-Qing, HU Xiao-Huan, ZHU Yu-Wei journal6    2016, 37 (1): 43-48.   DOI: 10.3969/j.cnki.jdxb.2016.01.011 Abstract （2224）      PDF（pc） （447KB）（1319）       Knowledge map    Save Multiple access to the same communication terminal for communication authentication at the same time frequently results in the classic information channel congestion due to the blind concurrent competition for authentication information.To avoid communication interference and the network resource waste caused by communication idleness,this paper proposes to use token ring technology and quantum teleportation technology.An authentication scheme is put forward for realizing priority appointment and identity information verification between communication sites in local area network (LAN) of quantum teleportation.This scheme can realize standardized and orderly operation of the communication network,effectively reduce the waste of network resources,shorten the communication time delay,and thus improve the efficiency of identify authentication. Reference | Related Articles | Metrics | Comments（0） Select Light Intensity Distribution of Near-Field Diffraction for Planar Waves Diffracted at Small Circular Aperture YE Fu-Qiu journal6    2015, 36 (5): 48-50.   DOI: 10.3969/j.cnki.jdxb.2015.05.011 Abstract （1820）      PDF（pc） （283KB）（1573）       Knowledge map    Save With rigorous vector diffraction theory，the light intensity distribution of near-field diffraction for planar light waves with vertical incidence diffracted at small circular aperture is studied，and the spatial distribution characteristics of the diffraction light intensity simulation is calculated by computer.The Mablab simulation results show that the near-field diffraction belongs to Fresnel diffraction，and similar to Fraunhofer diffraction. Reference | Related Articles | Metrics | Comments（0） Select Design of Remote Control System for Intelligent Electronic Billboards Based on ZigBee+GPRS LI Xian-Chun, ZHAN Jie, SUN Qi-Hao, LI Hong journal6    2015, 36 (5): 51-56.   DOI: 10.3969/j.cnki.jdxb.2015.05.012 Abstract （2312）      PDF（pc） （3619KB）（1482）       Knowledge map    Save Aiming at the difficulty and insecurity in controlling the outdoor electronic billboards，the remote control system for intelligent electronic billboards has been designed based on ZigBee and GPRS.The core of the system is CC2430 microcontroller，and the ZigBee wireless sensor network is built by Z-Stack protocol stack to realize multipoint distributed control system.Furthermore,the collected vibration warning information is transmitted to the mobile terminal of users through GPRS telecommunication technique.This system can adjust the brightness of the backlight of the billboards.It is not only energy-efficient，but also reduces the light pollution. Reference | Related Articles | Metrics | Comments（0） Select Design of Maximum-Efficiency Wireless Power Transmission System Based on Magnetic Resonance XIAO Jian, WANG Xiao-Yun, QUAN Xiu-E, HUANG Yong-Gang, SUN Jing journal6    2015, 36 (5): 57-62.   DOI: 10.3969/j.cnki.jdxb.2015.05.013 Abstract （3358）      PDF（pc） （500KB）（1785）       Knowledge map    Save In order to optimize the parameters of wireless power transmission system and achieve the maximum efficiency,in this paper, the relationship between efficient and system parameters was soluble by analyzing frequency response of the transmission system equivalent circuit model,and verified the decrease of transmission efficient caused by the frequency bifurcation phenomena at the over coupling condition.The design method of maximum efficient system acquiring the best resonant frequency and coil direction angle based on automatically controlled was presented.The simulation results of Multisim software showed that the transmission efficient could be improved above 43% at the over coupling condition. Reference | Related Articles | Metrics | Comments（0） Select Measurement of the Focal Length of the Concave Lens by Improved Autocollimation Method LIAO Li-Xin journal6    2015, 36 (4): 30-32.   DOI: 10.3969/j.cnki.jdxb.2015.04.008 Abstract （3189）      PDF（pc） （279KB）（1675）       Knowledge map    Save Based on the classical autocollimation method of measuring the focal length of the concave lens,the paper proposes an improved autocollimation method through which concave lens instead of image screen are moved so that the influence of focal depth on the measurement result can be eliminated. The analysis on the experimental results shows that the accuracy of measuring the focal length of the concave lens by the improved autocollimation method greatly increases，with the average decrease of relative error by 3.93% and the decrease of variance by 20.39 mm. Reference | Related Articles | Metrics | Comments（0） Select Design of Long-Distance Acquisition Module of Bus Security Data TAN Zhou-Wen, CHENG Yun, MA Zi-Ji journal6    2015, 36 (4): 33-36.   DOI: 10.3969/j.cnki.jdxb.2015.04.009 Abstract （2192）      PDF（pc） （335KB）（1318）       Knowledge map    Save For collecting bus security information remotely all-around the ground,the hardware and software designs are achieved through radio frequency identification module and infrared,smog and door magnetic sensors.The data acquired by the sensors are transmitted to the wireless ratio frequency identification through serial interface.The smog sensor is for the prevention of fire in the bus.The door magnetic sensor and infrared sensor are for the prevention of theft.The site testing results show that the module is capable of processing and delivering the signals from sensors accurately and effectively，and can be used in bus security system. Reference | Related Articles | Metrics | Comments（0） Select Robot Path Planning Based on Improved Partheno-Genetic Algorithm PENG Li, HONG Liang journal6    2015, 36 (4): 37-39.   DOI: 10.3969/j.issn.1007-2985.2015.04.010 Abstract （2459）      PDF（pc） （279KB）（2355）       Knowledge map    Save The improved partheno-genetic algorithm is proposed based on the path planning in the Chinese Robot Competition “Robot Tourism in China”,which is aimed at the problem of low computational efficiency of constrained combinational optimization.Three genetic operators of partheno-genetic algorithm-commutating operator,operator in advance,and repair operator,were established without changing the calculation steps of traditional partheno-genetic algorithm;as a result,the search efficiency of partheno-genetic algorithm is largely improved.Simulation experiment shows that compared with genetic algorithm，the proposed improved partheno-genetic algorithm has greatly increased computation efficiency and path planning ability. Reference | Related Articles | Metrics | Comments（0） Select RSC-MAC Protocol for Smart Home Networks of Electric Appliances ZHANG Zhi-Yuan, LEI Chao-Yang journal6    2015, 36 (4): 40-43.   DOI: 10.3969/j.cnki.jdxb.2015.04.011 Abstract （2559）      PDF（pc） （423KB）（1319）       Knowledge map    Save In smart home networks，electric appliances are connected by communication media such as Ethernet，WLAN，or ZigBee.This paper introduces RSC-MAC（reliable sensing and control-MAC） for home appliance networks and designs a QoS (quality of service) supported MAC protocol，which provides delay guarantee for arbitrary control messages in home networks and keeps the flexibility of sensing data collection.The simulation result shows that RSC-MAC successfully delivers all control packets within the tolerant delay，and has a good performance in delivering sensing packets. Reference | Related Articles | Metrics | Comments（0） Select Experimental Measurement and Analysis of Monofilm Optical Fiber Bend Loss YE Fu-Qiu journal6    2015, 36 (3): 29-31.   DOI: 10.3969/j.cnki.jdxb.2015.03.007 Abstract （2054）      PDF（pc） （274KB）（2064）       Knowledge map    Save The changes of bending loss in 1 310 nm wavelength and 1 550 nm wavelength with different bending radius of optical fiber is measured,and the effect of different working wavelength light and bending radius in optical fiber on bending loss is compared.The result shows that the bending loss coefficient decreases with the increase of bending radius,withthe oscillation phenomenon appearing；in large bending radius,bending loss changes gently,but the bending loss is more likely to occurin 1 550 nm wavelength than in 1 310 nm wavelength.The bending loss show sharp oscillation with small bending radius.At this time,the sensitivity of two optical wavelengths to the bending loss become large alternately. Reference | Related Articles | Metrics | Comments（0） Select A First Principle Study of Local Magnetic Moment on Non-Magnetic Elements Doped AlN YANG Hong, QUAN Xiu-E journal6    2015, 36 (3): 32-34.   DOI: 10.3969/j.cnki.jdxb.2015.03.008 Abstract （1995）      PDF（pc） （494KB）（1635）       Knowledge map    Save The ideal diluted magnetic semiconductors has favorable room-temperature ferromagnetism.Although AlN diluted magnetic semiconductor has wide band gap and good light-admitting quality,it has not been widely applied due to the unsatisfactory replicability of the experiment.Based on first principle of the density functional theory,we calculate the electric structure of AlN semiconductors doped by B element.The analysis of the calculated electric structure displays that an evident local magnetic moment change arises on doped AlN semiconductors.The magnitude of the local magnetic moment is 2 μB. Reference | Related Articles | Metrics | Comments（0） Select Splitting of Self-Collimated Acoustic Beams Based on Line Defect in Sonic Crystal OUYANG ShiLiang , HE Hai-Long, DENG Ke, ZHAO He-Ping journal6    2015, 36 (3): 35-38.   DOI: 10.3969/j.cnki.jdxb.2015.03.009 Abstract （1777）      PDF（pc） （701KB）（1602）       Knowledge map    Save Two kinds splitting schemes for self-collimated acoustic beam are designed based on the coupling between defect modes and self-collimated modes in sonic crystals.The schemes are verified numerically by the finite element method.Controllable energy distribution can be achieved in our schemes as the ratio of energy between reflected and transmitted beams can be regulated freely by changing the defect size.By concatenating and expanding the designed structures,multichannel splitting can also be achieved which can be widely used in the integrated acoustic devices. Reference | Related Articles | Metrics | Comments（0） Select Design of DC Drive Micromouse Based on STM32F103 ZHAN Jie, LIU Xue-Bing, ZHANG Hao journal6    2015, 36 (3): 39-44.   DOI: 10.3969/j.issn.1007-2985.2015.02.010 Abstract （3141）      PDF（pc） （615KB）（1995）       Knowledge map    Save Micro-mouse is a microprocessor controlled micro robot that integrates the multiple functions of environment perception,dynamic decision-making and planning,behavior control and implementation.The traditional design of micro-mouse uses a stepping motor which is easy to control but has low rotate speed.The paper introduces the design of DC-drive micro-mouse with low cost and high reliability which fully considers the requirements of competition.Simulation tests shows that this system can complete the task of maze contest successfully. Reference | Related Articles | Metrics | Comments（0） Select Some Theories About Mathematical-Physical Equations and Development of Complex Variables Functions ZHANG Yi-Fang journal6    2015, 36 (2): 38-45.   DOI: 10.3969/j.issn.1007-2985.2015.02.009 Abstract （2352）      PDF（pc） （415KB）（2072）       Knowledge map    Save First,the general equations and some of the simplified forms of their solutions are discussed.Next,the mathematical-physical equations and their symmetries are introduced.Thirdly,the fixed points,the qualitative analysis theory and corresponding applications on these equations are investigated.Fourthly,linear algebra is assorted from matrix.Fifthly,various quantities related with mathematics and physics are discussed.Finally,the extension of the number field and various super complex variables functions developed from the complex variables functions,etc.,are researched. Reference | Related Articles | Metrics | Comments（0） Select Analytical Prediction and Simulation of Chaos in Voltage Driven Chua’s Circuit LI Bang-Yan, LI Lian-Jun journal6    2015, 36 (2): 46-51.   DOI: 10.3969/j.issn.1007-2985.2015.02.010 Abstract （1857）      PDF（pc） （456KB）（1680）       Knowledge map    Save Chua’s circuit can produce complex nonlinear dynamics,the state of which is three order differential equations and which is used to study chaos behavior.Firstly,a voltage driven model of Chua’s deformed circuit is set up.Secondly,an analytical method to predict the scope of the parameters of chaos of the third-order nonlinear differential equations is proposed.At last,numberical method and Lyapunov exponent analysis are used to simulate the prediction result,which verifies the correctness of chaotic prediction analysis of this circuit. Reference | Related Articles | Metrics | Comments（0） Select Combined Anti-Interference Technology Based on Smart Antenna and Multi-User Detection DENG Xiao-Fei, SUN Wei, SHI Jin journal6    2015, 36 (2): 52-54.   DOI: 10.3969/j.issn.1007-2985.2015.02.011 Abstract （1739）      PDF（pc） （348KB）（1510）       Knowledge map    Save The combined technology against multiple access interference is a new research field.This article combines smart antenna with the multi-user detection to suppress coherent interference and to improve the bit error rate of the system.In addition,it adopts these key technologies for wireless resource utilization.The paper puts forward a CDMA system model of using multi-user detection after smart antenna,and meanwhile introduces the adaptive filter based on LMS algorithm to eliminate the narrow band interference.At last,it analyzes the nature through Matlab simulation.The results show that the joint anti-interference has better bit error rate performance. Reference | Related Articles | Metrics | Comments（0） Select Algorithm of  Vehicle Classification Based on Traffic Video Surveillance System SHEN Ying, YANG Huan-Zhi, ZHANG Zhen-Bin, ZENG Qing-Huan-Li-Ping, CHEN Bing-Quan, ZHANG Bang-Ying journal6    2015, 36 (2): 55-59.   DOI: 10.3969/j.issn.1007-2985.2015.02.012 Abstract （2502）      PDF（pc） （2169KB）（1671）       Knowledge map    Save Video surveillance system is a component of intelligent transportation system.Through preprocessing and detecting the video image of vehicles in monitoring area,and real-time classification,the release time of traffic lights can be confirmed in real time according to the size of the vehicle flow.By using the method of the active contour tracking model and fuzzy support vector machine,the intelligent traffic video surveillance system provides real-time detection and classification of vehicles.Matlab simulation results show that the average correct recognition rate of large,medium and small sized vehicle is  8 9.8%,so the method can improve the efficiency of traffic. Reference | Related Articles | Metrics | Comments（0） Select Measurement of Electromotive Force and Internal Resistance of Electric Source Under Self-Designing Compensation Circuit YAN Lin, HUANG Guo-Sheng, WU Gui-Ping journal6    2014, 35 (6): 42-44.   DOI: 10.3969/j.issn.1007-2985.2014.06.011 Abstract （2325）      PDF（pc） （312KB）（2367）       Knowledge map    Save Common methods of measuring the electromotive force and internal resistance of electric source are the voltammetry and the potentiometer method.However there are some imperfections in the two methods,such as great errors in the measurement results and complex experimental procedures and so on.Thus,the electromotive force and the internal resistance of the electric source are measured with a new method of a self-designing compensation circuit,which has clear experimental principle and relatively simple measurement procedures.This new method needs no special equipments but produces comparatively accurate result. Reference | Related Articles | Metrics | Comments（0） Select Measuring the Rotational Inertia of the Particle by the PASCO Rotating Experimental Device QUAN Xiu-E journal6    2014, 35 (6): 45-47.   DOI: 10.3969/j.issn.1007-2985.2014.06.012 Abstract （2701）      PDF（pc） （475KB）（2134）       Knowledge map    Save Taking advantage of the PASCO rotational experiment device,the author measured the inertia of a particle through the law of falling bodies.It is found that the falling acceleration a should be the slope of the v-t graph instead of the intercept of a-t graph;and for the same rotation system,the influence of resisting moment on the experiment is eliminated by twice changing the mass m of the hanging object.To reduce the error of resisting moment at the second falling,the smaller the difference Δm is,the more accurate the experimental results will be,and the minimum relative error will reach 0.54%. Reference | Related Articles | Metrics | Comments（0） Select Research Progress of a New Generation of Smart Fiber Sensing Networks and the Key Devices LIU Tie-Gen, QIN Zun-Qi, LU Ying, JIANG Jun-Feng, ZHANG Hong-Xia, LIU Kun journal6    2014, 35 (6): 48-53.   DOI: 10.3969/j.issn.1007-2985.2014.06.013 Abstract （3208）      PDF（pc） （734KB）（2443）       Knowledge map    Save By the funding of 973 projects,Tianjin University launched studies on fiber sensing technologies,mainly including the design of  a PCF-SPR sensor based on photonic crystal fiber filling with silver wire，with optimum sensitivity of  2 400 nm/RIU,the design of a PBG-PCF temperature sensor based on liquid core photonic crystal fiber,with maximum resolution of 4×106 nm/RIU,the design of a tunable thermo optical switch based on photonic crystal fiber filled with toluene-chloroform mixed solution,which had different temperature transition points by changing the ratio of the solution,the construction of three kinds of structure models based on the theory of optofluidics,with studies on the mode distributions and the detection of the magnet,and the establishment of the optical gas sensing system based on L-band EDFA with absolute error  less than 0.04%.According to the sensor structure,the optical path demodulation and the demodulation algorithm,the F-P sensing system was designed and optimized.A method of evaluating the robustness of the fiber sensing network was presented.Studies of comb tunable light source technology and OFDR technology in fiber sensing network detection were developed. 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