Table of Content

    25 January 2019, Volume 40 Issue 1
    Mathematics
    Hermite-Hadamard-Fejér Inequalities of Two Classes of Convex Functions
    ZENG Zhihong,SHI Tongye,CAO Junfei
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  1-6. 
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    This paper introduces a method to establish the first Hermite-Hadamard-Fejé type inequality,and illustrates this method by establishing the first Hermite-Hadamard type inequality of GA-convex functions.With this method,the first Hermite-Hadamard-Fejér type inequalities of two classes of convex functions are established.The first Hermite-Hadamard-Fejér type inequalities of η-convex functions and generalized geometrically convex functions are also obtained as particular cases.

    Improvement of a Half-Discrete Hilbert-Type Inequality Related to the Kernel of Arc Tangent Function
    NIE Caiyun
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  7-9. 
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    By introducing weight function and strengthened Hlder's inequality,a more accurate semi-discrete Hardy-Hilbert-type inequality related to the kernel of arc tangent function is improved through real analysis.Some new inequalities are established.

    Uniqueness of Solution to the Exponential Diophantine Equation
    ZHOU Zewen
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  10-11. 
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    Solution to the exponential diophantine equation 2x+3x+a=5x+b(x,a,b∈N,a>b and its uniqueness is introduced and testified.

    Least Energy Solutions for a Class of Non-Linear Elliptic Equations on the Plane
    WANG Qian
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  12-17. 
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    For a class of non-linear elliptic equations on the entire plane,constrained minimization method is used to prove that there exists a least energy solution which is compactly supported and spherically symmetric and decreases with respect to r=|x|.

    Computer
    Agriculture Text Classification Based on Chinese Key String Kernel Function
    SHEN Li,XIAO Yong,LIU Ying
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  18-20. 
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    This paper proposes a Chinese key string kernel function for agriculture text classification.Experimental results show that this algorithm can achieve superior performance compared with traditional classification algorithm.

    Online Firmware Upgrade of STM32 Single Chip Microcomputer Based on IAP Technology
    TANG Pengcheng,WANG Xuming,HU Li
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  21-26. 
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    For the problem of updating embedded products program,an online firmware upgrade scheme of STM32 single chip microcomputer based on IAP technology is proposed.This scheme not only elaborates the principle of IAP technology in detail but also provides the design of the minimum system hardware circuit of STM32 MCU,the design of USB for serial communication circuit,and the implementation flow of Bootloader program,APP program and PC program.The experiment results show that the scheme is simple,practical and highly stable.In addition,it can be used to actual embedded product upgrading,significantly reducing maintenance costs and improving the efficiency of equipment.

    Intelligent Street Lamp Monitoring System Based on NB-IoT Technology
    WANG Guoyi,YUAN Tao
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  27-29. 
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    For the shortcomings of traditional street lamps in remote automatic control,intelligent lightmodulation,automatic inspection and fault treatment,an intelligent street lamp monitoring system based on NB-IoT technology is designed.Through improving the controller and designing NB-IoT terminal and NB-IoT base station,this system realizes data uploading from the sensing layer and command issuing from the application layer in 4G network.Intelligent and information-based street lamp control,light modulation,inspection and fault treatment are thus implemented.

    Design of Intelligent Massager Based on AT89C52 Single Chip Microcomputer
    LI Deying
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  30-33. 
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    AT89C52 single chip microcomputer is used as massager controller which generates pulse width modulation waveform to control the dc motor speed and the vibration speed and amplitude so as to realize intelligent massage.The dc motor chip L298N is used to drive 12V dc motor to realize the forward and backward turning and multi-stage speed adjustment of the motor.The massager gear position and the forward and backward turning status are displayed on the LED.This intelligent massage device has the advantages of low production cost,convenient use and various functions.

    Design of Remote Marine Environmental Monitoring System Based on LoRa and GPRS
    ZHOU Dongyun,WANG Haoxian,ZHOU Zhiquan
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  34-38. 
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    A practical scheme of remote marine environmental monitoring system is proposed.The system adopts light weight and low power consumption multi-parameter sensor to collect data,and applies LoRa and GPRS technology to transmit data.Meanwhile,a combined gateway based on STM32 microcontroller is designed to exchange data between monitoring node and internet,and the data management platform in the system is constructed to collect,display and store dataon server side.Experiment results show that the scheme can realize intelligent and long-range remote monitoring of the target ocean area.

    Physics
    An Attack Strategy for the Perfect Quantum Seal
    HUANG Jiang,ZHAN Qiang,LIN Meiping,WANG Shihong,HUANG Rong,WU Huixian
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  39-43. 
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    For a perfect quantum seals,an attack strategy is found,which can escape  detection successfully.By constructing two complete project operators,the sealing message can be decoded without the given basis and the wiretap action can be erased.The attack strategy does not bring any change before and after the measure process.

    Acoustic Capture of Spherical Particles Based on the Periodic Grid Structure
    OUYANG Wenle,ZOU Feng,HE Hailong,HE Zhaojian,DENG Ke,ZHAO Heping
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  44-47. 
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    We investigated the acoustic radiation force (ARF) acting on a spherical brass particle near a stiff plate without openings but patterned with periodic stubs.Simulation results showed that the particle near plate which the distance is less than 0.5d can be pulled backward when external acoustic waves impacted into the system.And the ARF will decrease when the size of the particle increases.We also demonstrated that the dramatic pulling force originates from the collective excitation of nonleaky flexural lamb modes in the periodically structured solid plate.

    Electrical Technology and Communication
    Angular Distribution of Radiant Power in Oscillating Electric Quadrupole in Magnetic Anisotropic Media
    MENG Xinhong
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  48-52. 
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    The angular distribution of the radiant power of the oscillating electric quadrupole in the magnetic anisotropic media is complicated.Based on previous work,this paper obtains the expressions of radiant power and its angular distribution of the electric quadrupole oscillating along the polar axis in anisotropic rectangular coordinate system.When the medium is isotropic,the result is consistent with the expected result,which verifies the correctness of the derivation result.

    Quantity Prediction of Distribution Network FaultsBased on Big Meteorological Data
    HE Dian,TAN Dudu,HE Hailing,ZOU Sheng,ZHONG Jiacheng,WANG Tingting
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  53-56. 
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    With historical data of distribution network faults and big data of temperature,rainfall,and lighting,a weather-sensitive neural network predicting modelis proposed.Based on the maximum correlation coefficient of faults and meteorological factors,the main meteorological factors are real-time adjusted.The number,type and trend of the faults are accurately predicted.The result provides qualitative and quantitative reference for staff and materials deployment.

    An Improved Entropy Coding Algorithm in String Matching Based on Alpha Image Coding
    LIN Tao,ZHANG Dongyu,ZHAO Liping
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  57-60. 
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    Based on the Alpha image features and the statistics about the distribution of unmatched-pixels in string matching coding,an improved entropy coding algorithm is proposed.To achieve better compression efficiency by writing less bits into the bitstream,unmatched-pixels are firstly filtered to get unique distribution characteristic,and then segmented coding is applied to the filtered unmatched-pixels.Experimental results indicate that,compared with the LZ4HC,ZLIB,PNG algorithms,the improved algorithm has the advantages of high coding efficiency and low coding complexity.

    Biological
    A New Species of Sinocyclocheilus from Yunnan,China:Sinocyclocheilus Bannaensis
    LI Weixian,LI Chunqing,CHEN Hongyu
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  61-63. 
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    This paper describes a new species of the genus Sinocyclocheilus,S. bannaensis sp. nov. collected from the Luosuojiang (101°14′N,21°55′E) in Xishuangbanna of Yunnan,China.The new species is similar to S. angustiporus Zhenget Xie (1985) but differs from the latter in:①D. iii-8 (vs.iii-7);②lateral line scales 47 (vs. 68~89).This new species is also similar with S. robustus Chen et Zhao (1988),but it can be differentiated from S. robustus by D. iii-8 (vs. iii-7),lateral line scales 47 (vs. 72).

    Content Measurement of Oleanolic Acid in Akebia Trifoliata Pericarp by Ultraviolet-Visible Spectrophotometry
    FU Zhirong,LI Xuefeng,ZHANG Xiaoxu,OUYANG Yuzhu,WU Mengyuan
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  64-68. 
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    In order to establish a spectrographic method of measuring oleanolic acid,conditions of UV-spectrophotometry analysis was investigated with vanillin-glacial acetic acid as chromogenic reagent and 545 nm as the determination wavelength.The results showed that the measured concentration value of 8.00 mg/L oleanolic acid standard solution was 8.02 mg/L with 0.3 mL vanillin-glacial acetic acid as chromogenic agent,duration was 15 min under 70 ℃,linear relation of the oleanolic acid was good in 2.00~16.00 mg/L,and the correlation coefficientwas 0.999 8.Content of oleanolic acid in Akebia trifoliata pericarp was 3.70 mg/g by this analysis method.Standard addition recovery rate was 101.06%,and its relative standard deviation (RSD) was 1.22%.RSD of precision,repeatability and stability was 0.02%,0.29% and 1.29%,respectively.

    Chemistry and chemical engineering
    Study on Synthesis,Characterization and Luminescence Property of Terbium-Enrofloxacin Rare Earth Complex
    WANG Ying,WANG Lifang,XIAO Yue,MA Dongyun3,ZHANG Yunjie,YUAN Huan,DU Yongxiang
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  69-71. 
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    The rare earth terbium complex with drug ligands of the enrolfloxacin as the first ligand and the phenanthroline as the second ligand was synthesized by precipitation method.The structure of the complex was characterized by elemental analysis,ultraviolet spectroscopy and infrared spectroscopy and the fluorescence properties were explored.The results showed that the terbium ion (III) and the ligand were coordinated together,and a new rare earth complex was formed.The four characteristic peaks of terbium ions appeared in fluorescence spectrum of the complex,and as a result the complex emitted green fluorescence with rather good fluorescence performance.Also there existed rather strong peaks coming from ligands in emission spectrum,indicating that the energy transfer efficiency was not complete in the complex.

    Synthesis of CoMoO4 and Its Application in Sodium/Lithium Ion Battery
    CHEN Meiyan,YANG Qing,WU Xianwen,ZOU Li,YAO Zhengxi,LI Fangning
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  72-77. 
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    The specific capacity of carbon-based anode material is low and can't meet the demand of battery with high energy density.To search for the anode material of battery with high capacity and long cycle life,the CoMoO4 electrode was prepared through hydrothermal method.The structure and morphology of as-prepared material were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The electrochemical performances were investigated using cyclic voltammetry and galvanostatic charge/discharge measurement.The results showed that as it was applied to anode forlithium-ion batteries (LIBs),the initial reversible capacity was 1 403.6 mAh/g and the initial coulombic efficiency was up to 146.5%,and the specific reversible capacity retained up to 793.6 mAh/g even after 50 cycles at a current density of 100 mA/g.Furthermore,as it was applied into the anode material of sodium ion battery,the initial specific reversible capacity was only 314.2 mAh/g.However,the capacity retention was up to 76.4% after 50 cycles.There was no conductive and binder for the self-standing anode,and there was strong binding force between electrode material and nickel foam.Meanwhile,the excellent cycling stability was attributed to the small electrochemical transfer impedance.

    Synthesis and Properties of Fluorescein Fluorescent Materials
    LIU Limin,SHI Jianjun,ZHANG Xianfu
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  78-83. 
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    Methods of synthesizing fluoresceins fluorescent materials are reviewed,including Friedel-Crafts acylation,condensation reaction and Grignard reagent reaction.The properties of the widely applied fluoresceins fluorescent materials are analyzed.

    Characteristic column:Study on Wuling Mountain Area
    Study on Travel Destination Image Perception and Tourists' Intention Based on Reference Group:A Case Study of Zhangjiajie City
    ZHANG Haiyan
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  84-92. 
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    Taking Zhangjiajie City as a case,this study makes an empirical exploration into the relationship among reference group,travel destination image perception and tourists' intention and build a conceptual model.The results show that reference group has positive influence on both travel destination image perception and tourists' intention in information,utilitarian,and value expression situations.In information situation,reference group has the greatest influence.The results also confirm a strong positive correlation between destination image perception and tourists' intention.The empirical results suggest that tourism marketing managers should pay attention to the role of reference group as the information channel and build multi-dimensional destination image so as to strengthen tourists' intention.

    Ecological Civilization
    Problems and Countermeasures of Rural Ecological Conservation Construction in the Process of Urbanization
    HAN Jingyun, ZHOU Weiying
    Journal of Jishou University(Natural Sciences Edition), 2019, 40(1):  93-96. 
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    The large-scaled development of rural urbanization in China has caused many environmental problems:the excessive exploitation and occupation of land has brought about serious waste,the loss of rural labor has broken the original balance of the ecological environment system,the development of rural enterprises has led to the increasingly serious industrial pollution in rural areas,and the problems of production and domestic pollution caused by the changes of the modes of rural production and lifestyle have become more severe.Facing the rural environmental problems in the urbanization process,it is necessary to transform the ideas and modes of urbanization,coordinate urban and rural ecological environment management,improve the laws and regulations system of rural natural resources and environmental protection,strengthen the management system and institutions of rural ecological civilization,realize the upgrading and transformation of agricultural production methods,and promote the main status of peasants to increase the intrinsic motivation in rural environmental management.

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