Volumn Content

Journal of Jishou University(Natural Sciences Edition) 2016 Vol.37 Please wait a minute... For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Gaussian Curvature of Curved Surface and Gauss-Bonnet Formula XING Jia-Sheng, YANG Xiao-Yuan, LUO Xiu-Hua journal6    2016, 37 (1): 1-6.   DOI: 10.3969/j.cnki.jdxb.2016.01.001 Abstract （5139）      PDF（pc） （324KB）（3095）       Knowledge map    Save With consideration given to the application method of Gaussian curvature computation formula to curved surface,a technique is suggested for solving Gaussian curvature of ellipsoids.By using curved surface coordinate grid of the orthogonal curve,the proving process of Gauss-Bonnet formula is shown and the source of a simplified Gaussian curvature formula is also pointed out.From the surface integral results of Gaussian curvature,some geometrical meanings are derived for surface integral. Reference | Related Articles | Metrics | Comments（0） Select Finite Element Solution to Advection-Dispersion Equations with Time-Space Fractional Derivatives WU Hong-Ying journal6    2016, 37 (1): 7-10.   DOI: 10.3969/j.cnki.jdxb.2016.01.002 Abstract （1889）      PDF（pc） （279KB）（1404）       Knowledge map    Save Generally，there is no analytical solution for time-space fractional advection-dispersion equations.The finite element method is the effective approach for numerical simulation.In this article a time-semi discrete variable formulas and the corresponding FE equations are derived.Numerical example illustrates that the FEM iteration algorithm has 2－αi order and fourth order convergence rates for time and space，respectively. Reference | Related Articles | Metrics | Comments（0） Select Zero-Divisor Graph of Von Neumann Regular Rings PAN Hong-Yan, LI Ai-Hua journal6    2016, 37 (1): 11-13.   DOI: 10.3969/j.cnki.jdxb.2016.01.003 Abstract （2088）      PDF（pc） （251KB）（1491）       Knowledge map    Save In this paper we investigate the zero-divisor graph of von Neumann regular rings，and we focus our main attention on the property of vertices and the connectedness of the zero-divisor graph Γ(R).Let R be a von Neumann regular ring with unit 1，we show that  Γ(R) is connected if and only if R is direct finite.In addition，if R is a regular ring without unity elements，then  Γ(R) is connected if and only if R has no proper one-sided identity elements.For the zero-divisor graph  Γ(R) of a regular ring R with |R|≥ 5，we have that Sour(R)={a∈R|a is right invertible but  not left invertible} and Sink (R)={a∈R|a is left invertible but not right invertible}. Reference | Related Articles | Metrics | Comments（0） Select Enhancement of Half-Discrete Hilbert-Type Inequality with Non-Homogeneous Nuclear SHI Yan-Ping, SHANG Xiao-Zhou journal6    2016, 37 (1): 14-16.   DOI: 10.3969/j.cnki.jdxb.2016.01.004 Abstract （1590）      PDF（pc） （262KB）（1276）       Knowledge map    Save By using weight functions，the technique of real analysis and sharpened Hlder’s inequality,some improvements of half-discrete Hilbert-type inequality are given,and a few new inequalities are established. Reference | Related Articles | Metrics | Comments（0） Select Scale Parameter Estimation of the Pareto Distribution Based on MERSS CHEN Wang-Xue, LU Chun-Lin journal6    2016, 37 (1): 17-19.   DOI: 10.3969/j.cnki.jdxb.2016.01.005 Abstract （2064）      PDF（pc） （250KB）（1401）       Knowledge map    Save A maximum likelihood estimator (MLE) and the Fisher information number of the shape parameter c from Pareto distribution based on moving ranked set sampling (MERSS) are studied. We prove existence and uniqueness of the MLE of c under MERSS,and that c carries more the Fisher information about the parameter using MERSS than that using a simple random sample (SRS). Reference | Related Articles | Metrics | Comments（0） Select Design and Implementation of Information Management Platform for Undergraduate Admission in Hunan Province YIN Peng-Fei, JIANG Xiao-Hui journal6    2016, 37 (1): 20-24.   DOI: 10.3969/j.cnki.jdxb.2015.06.006 Abstract （4050）      PDF（pc） （536KB）（1979）       Knowledge map    Save The design and the main functional modules of online undergraduate information management platform based on Web are developed to reduce the workload and the error rate in registration and admission，and thus to ensure the operability，objectivity，timeliness and reliability of the management.Tests and actual operations prove that the platform design is valid for user registration，login，online application，and information query. Reference | Related Articles | Metrics | Comments（0） Select Volume Calculation of Multi-Continuous Stirred Tank Reactor Using Excel WANG Xue-Qian, FENG Quan-Li, CHEN Lu journal6    2016, 37 (1): 25-27.   DOI: 10.3969/j.cnki.jdxb.2016.01.007 Abstract （2375）      PDF（pc） （320KB）（2038）       Knowledge map    Save A new method for calculating the volume of multi-continuous stirred tank reactor is advanced based on Jones-graphical method and using Excel.With the data fitting function and solver of Excel,it is an easy method without manual graphic calculation or programming.This method can be applied in teaching and engineering calculation. Reference | Related Articles | Metrics | Comments（0） 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）（1545）       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 （1901）      PDF（pc） （486KB）（1409）       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 （2269）      PDF（pc） （598KB）（1445）       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 Improved Particle Swarm Optimization Algorithm Based on Transformer Substation Grounding System ZHAO Can-Hui, ZHU Yan-Bin, LI Ming-Gang journal6    2016, 37 (1): 49-53.   DOI: 10.3969/j.cnki.jdxb.2016.01.012 Abstract （2102）      PDF（pc） （667KB）（1548）       Knowledge map    Save To solve the problem that the unequal electric potential of grounding grid can be caused by the use of steel instead of copper as a conductor.The improved PSO algorithm is used to optimize the docking system,and the optimization objective function is set up by using double layer soil and unequal potential model. The traditional particle swarm algorithm is improved through the method of fission gregarious variation to solve the problem of premature convergence and slow convergence.The simulation model was built by the actual system parameters of the grounding system of a substation. The Matlab simulation results show that compared with the equally distributed grounding system of the 80 m×60 m and 120 m×100 m substation,the unequally distributed grounding voltage according to the exponential rule by the   improved particle swarm optimization algorithm can achieve 21.65% and 23.45%. The difference of the maximum current density is 18.05% and 10.26%.It is concluded that the optimized design method of substation grounding system in this paper can effectively reduce the difference of maximum contact voltage and current density,and can effectively improve the security of the grounding system. Reference | Related Articles | Metrics | Comments（0） Select Study of Vertical Vibration of Vehicles-Long-Span Continuous Rigid Frame Bridge Based on Matlab-Midas DAI Ke-Yi, CHEN Rui-Lin, CHEN Huan, REN Hai-Long, LU Ya-Ping journal6    2016, 37 (1): 54-59.   DOI: 10.3969/j.cnki.jdxb.2016.01.013 Abstract （2427）      PDF（pc） （577KB）（1579）       Knowledge map    Save To study the characteristics of vertical vibration of vehicles-long-span continuous rigid frame bridge，the solution of wheel-track force was automatically figured out based on creep theory in combination with Matlab program.The simulative wheel rail force was then input into the finite element analysis model of bridge to get the vertical vibration of the bridge.The simulation results show that the Mablab-Midas model solution of vertical vibration response of bridge is highly feasible and convenient.Taking a certain large continuous rigid frame bridge as an example,the vertical dynamic responses from the electric motor trains of CRH1,CRH2,CRH3,CH4 are analyzed respectively.Results show that the type CRH4 vertical displacement of the dynamic response is greater than the other three types, but general trend of change on four kinds of models is consistent. Reference | Related Articles | Metrics | Comments（0） Select Numerical Simulation of the Spray Characteristics of Diesel,Methanol and Water Emulsion WU Dong-Yin, WANG Wu-Qiang, LI Ming journal6    2016, 37 (1): 60-63.   DOI: 10.3969/j.cnki.jdxb.2016.01.014 Abstract （2090）      PDF（pc） （825KB）（1505）       Knowledge map    Save This paper simulated the spray characteristics of diesel,methanol and water emulsion by Fluent,and obtained the particle trajectory figure and particle velocity vector diagram of the spray.Meanwhile,the influence of the spray injection pressure,environmental pressure and nozzle diameter is studied on the emulsion spray characteristics.This research provides certain guiding significance for the diesel,methanol and water emulsion application. Reference | Related Articles | Metrics | Comments（0） Select Factors of Influencing Gemmae Germination and Growth of Huperzia Serrata LUO Bing-Jie, YAO Mao-Jun, CAO De-Hua journal6    2016, 37 (1): 64-68.   DOI: 10.3969/j.cnki.jdxb.2016.01.015 Abstract （2071）            Knowledge map    Save The factors of influencing the gemmae germination of Huperzia serrata and growth condition are explored.The effect of culture medium,culture temperature,and light intensity and GA3 on the gemmae germination condition of Huperzia was studied,and the growth morphogenesis during the course of gemmae germination of Huperzia serrata was observed at the same time.Results showed that the best culture temperature for the gemmae germination was (22±2)℃,and the germination  rate  of the optimum  medium for Moore,the germination rate was as high as 82%,and the average plant length could be up to 14.620 mm.The second culture medium for the gemmae germination was Knudson C,the germination rate was 64%,and the average adventitious root length was about 5.158 mm.Darkness was conducive to gemmae germination,the germination rate was 92%,and the average adventitious root length was about 9.088 mm.Under 800lx weak light,the adventitious root grew slowly,and the adventitious root length could be up to 8.675 mm.1600lx light irradiation exhibited some inhibition for the adventitious root growth.And GA3  for gemmae germination and growth exhibited some inhibition. This study establishes the gemmae germination culture system for Huperzia serrata,which consitutes the foundation for further study on the growth,physiological and biochemical change of Huperzia serrata. Reference | Related Articles | Metrics | Comments（0） Select Characteristics Analyses of Kitchen Waste Leachate WANG Ya-Guang, WU Yu-Xian, TENG Yao, HE Ze-Qiang, XIONG Li-Zhi journal6    2016, 37 (1): 69-73.   DOI: 10.3969/j.cnki.jdxb.2016.01.016 Abstract （3035）      PDF（pc） （444KB）（1594）       Knowledge map    Save The kitchen wastes were collected from a student canteen in Jishou University to produce kitchen waste leachate in the laboratory in an anaerobic acidogenic reactor.The characteristics of kitchen waste leachate were analyzed.Results show that the concentration of COD and NH+4—N  for formed kitchen waste leachate after reaction for 8 weeks is more than 140.6 g/L and 16.2 g/L,respectively.With the increase of fermentation time,the pH of the kitchen waste leachate decreased from 5.9 in the end of 1st week to 3.7 in the end of 8th week.At the same time,the VFA concentration increased from 6.7 g/L to 17.9 g/L and the COD concentration increased from 57.9 g/L to 140.6 g/L,while the NH+4—N concentration increased 0.3g/L to 16.2 g/L.Prolonging the reaction time,the pH of the kitchen waste leachate tends to be stable and the concentration of VFA and NH+4—N  increases slowly,while the concentration of COD has a downward trend. Reference | Related Articles | Metrics | Comments（0） Select Content Determination and Ultrasonic Extraction Techniques of Total Flavonoids from Capsellae Bursa-Pastoris (L.) LIU Ya-Qian, WEI Hua, LI Gui, HE Jian-Wu, CHEN Tao, ZHANG Yuan, ZHOU Fen journal6    2016, 37 (1): 74-79.   DOI: 10.3969/j.cnki.jdxb.2016.01.017 Abstract （1971）      PDF（pc） （446KB）（1289）       Knowledge map    Save UV spectrophotometry for determination of total flavonoids was used.Via ultrasonic extraction technique,using NaNO3-Al(NO3) to detect the absorbance of samples and taking lutin as comparison,the contents of total flavonoids were determined.On the basis of single factor experiments,the orthogonal experiment was used in the optimization of technological parameters:extracting temperature,ethanol concentration,extracting time,the ratio of solvent to raw materials.The result showed that the contents of total flavonoids in different kinds of Capsella bursa-pastoris L. were from 0.49% to 3.83%.The contents of total flavonoids in flowers & fruits were the highest，and then in leaves and stems.The contents of total flavonoids in cultivated varireties were higher than those in wile varireties.The optimum extraction conditions were as follows：temperature at 65 ℃,50% ethanol concentration,ultrasonic extraction for 40 min,and the  25∶1 ratio of solvent to raw materials.In these conditions,the total flavonoids extraction rate was 89.26%. Reference | Related Articles | Metrics | Comments（0） Select Poverty Alleviation Innovation Through Tourism Development:a Case Study of Wulong County YAO Mao-Hua, TAN Qi-Hua Journal of Jishou University(Natural Sciences Edition)    2016, 37 (1): 80-85.   DOI: 10.3969/j.cnki.jdxb.2016.01.018 Abstract （2144）      PDF（pc） （474KB）（1482）       Knowledge map    Save Poverty alleviation through tourism development in Wulong County demonstrates the innovations in the conception of poverty alleviation,the industry,regional development,structure and working mechanism,which provides reference for the poverty alleviation in other destitute areas. Reference | Related Articles | Metrics | Comments（0） Select Empirical Research on the Tea Industry Development of Xiangxi Based on Multivariate Linear Regression Model ZHANG Yong, WANG Huan, LU Dong-Xiang, SHI Hui, JIANG Hui, QIAO Hao journal6    2016, 37 (1): 86-89.   Abstract （1945）            Knowledge map    Save Combining with the status quo and development trend of the Xiangxi tea industry,through the analysis on the naturual,social and economic environment of Xiangxi,and using the least squares method to establish multiple linear model to carry on the quantitative research,we establish a model which reflect the positive correlation of the tea production with the first industry in GDP,and thus point out five factors which influence the tea industry in Xiangxi.Accordingly，the effective circulation of resources in the tea industry chain can be realized to improve the tea industry level，to promote the economic development,and ultimately,to accomplish the aims of poverty alleviation in Wuling mountainous areas. Reference | Related Articles | Metrics | Comments（0） Select Classification and Evaluation of Urban Tourism Resource ZHOU Da-Qing journal6    2016, 37 (1): 90-96.   DOI: 10.3969/j.cnki.jdxb.2016.01.020 Abstract （2473）      PDF（pc） （522KB）（3104）       Knowledge map    Save Tourism resources are the premise of tourism development；thus scientific classification and evaluation of  tourism resources is the basic work for urban tourism development and planning. After reviewing relevant researches，the paper defines and classifies the urban tourism resources in China. Using AHP method，this paper establishes an evaluation index system of urban tourism resources，which assigns different weight by quantified ways to reflect scientifically the influential degree of each index.The study can enrich the basic connotation of tourism resources and is of guiding significance for urban tourism development and tourism product construction. Reference | Related Articles | Metrics | Comments（0） Select New Findings about the Distribution Density of Quadratic Residue HUANG Yiru，HUANG Jian，TAN Fuping，ZHANG Chaohui，WANG Peikang Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.001 Select Semiprime Modules and Reduced Modules LI Dongfang，LI Qisheng Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.002 Select On the Eigenvalues of a Class of Second Order Ordinary Differential Operators LIU Yong,BAI Yunwen Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.003 Select Several Fekete-Szeg Inequalities About Non-Bazilevicˇ Functions GUO Dong，LI Zongtao Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.004 Select Phase Constrained Least Square Solutions of the Equation AX=B ZHAO Linlin，ZHANG Lihua，LIU Yanqin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.005 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 Self Recharging Algorithm for Indoor Mobile Robot HUANG Ying,ZHAO Han，LI Gao Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.007 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 Spread Spectrum Digital Watermarking Scheme Based on Fountain Code and Human Vision System in Contourlet Domain CHEN Liuyang，LU Rongbo，TENG Juan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.009 Select Screening and Identification of High Butanedione-Yielding Bacterial Strain SU Guirong，ZHOU Lulu，YI Langbo，PENG Qingjing，PENG Qingzhong Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.010 Select Experiment of Pressure Swing Adsorption of  CO2/CH4 at Low Temperature Through Coconut Shell Activated Carbon LIU Xuewu,DU Baoguo,WU Jintao,WANG Xiaojuan,ZOU Jiupeng Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.011 Select Electrochemical Reduction of Benzaldehyde to Phenylmethanol in Ionic Liquid BMIMBF4 FENG Qiuju，LI Feng，XIAO Yonglai，LIU Renbo，CAO Ming，TIAN Jun Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.012 Select Leaching Kinetics of Bornite in Acid Solution XU Jiajian，LIU Zhixiong,DAI Dongyang,TANG Liandong，XIANG Yanhong,ZOU Xiaoyong Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.013 Select Establishing Key Cities in Wulingshan Mountainous Area：A Case Study of Jishou City YANG Huaying,YAO Maohua Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.014 Select Approaches for Mechanical Discipline to Serve Regional Development ZHANG Zheng,YE Fuqiu,BI Rengui Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.015 Select Evaluation and Countermeasures of Sustainable Development of Mineral Resources in Xiushan County TANG Yexi，ZHOU Qi，TUO Qing，ZHU Shenhai，LI Yuefeng，ZHAO Qingqing，DING Yulan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.016 Select Analysis of Antibiotics Misuse in Trauma Inpatients HAO Yiwei Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.017 Select Effect of Baduanjin on Physiological Function of the Middle Aged and Elderly People:A Meta-Analysis WANG Jianyue,DING Yong,LI Yunqing Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.018 Select Comprehensive Reform of Instructional Programs by Universities in the West Minority Areas:A Case Study of Jishou University LI Jianfeng，LI Qisheng,LENG Zhiming Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.019 Select Practice on Improving the Teaching Skills of Normal College Students in Mathematics FANG Donghui,LI Aihua Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.02.020 page Page 1 of 4 Total 124 records First page Prev page Next page Last page