Journal of Jishou University(Natural Sciences Edition)

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Zero-Divisor Rings and Related Rings

REN Yan-Li, WANG Yao

journal6 2013, 34 (1): 1-5. DOI: 10.3969/j.issn.1007-2985.2013.01.001

Abstract （2714）

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The authors introduce the concepts of left (right) zero-divisor rings,a class of rings without identity.A ring R is called left (right) zero-divisor if rR(a)≠0(lR(a)≠0) for every a∈R.The authors investigate the relations between left (right) zero-divisor rings and related rings,and give equivalent characterizations of left zero-divisor rings.

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Properties of Extreme Value and Extreme Value Tangent Vector of Normal Curvature on Surface

XING Jia-Sheng, WANG Yong-Jun

journal6 2013, 34 (1): 6-10. DOI: 10.3969/j.issn.1007-2985.2013.01.002

Abstract （3087）

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The direct method of finding the extreme value of normal curvature and the extreme value vector are considered.A direct derivation method is proposed,and its properties as matrix characteristic value and characteristic vector are obtained.

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Liouville Type Theorem for a Parabolic Equation Involving Pucci Operato

LIU Yong

journal6 2013, 34 (1): 11-13. DOI: 10.3969/j.issn.1007-2985.2013.01.003

Abstract （2355）

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One classical result for the superlinear parabolic equation involving Laplacian operator is the Liouville type theorem.Due to the importance of these kind of theorems,the Liouville type theorem for parabolic equation involving Pucci’s operator is studied in this paper.When the space variable is one dimensional,it is relatively easy to analyze the Pucci operator.The main result of this paper states that in this case,the corresponding equation does not have global positive bounded solution.

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Analytic Behavior of Certain Cauchy Transforms on Sierpinski Gasket

LI Hong-Guang

journal6 2013, 34 (1): 14-15. DOI: 10.3969/j.issn.1007-2985.2013.01.004

Abstract （2520）

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It is proved that a new function G(z)=∫K(1－zw)－1dμ(w) has no zero points in |z|<1 and 1/(G(z)) is analytic in |z|<1 by Rouché’s theorem,where K is Sierpinski Gasket.

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Dual Risk Model with Random Observation

LIU Feng-Yun, CHEN Xu

journal6 2013, 34 (1): 16-20. DOI: 10.3969/j.issn.1007-2985.2013.01.005

Abstract （2435）

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A dual risk model for the surplus process where the process can only be observed at random observation times is considered.Tthe Gerbershiu expected discounted penalty function mδ(u) which satisfies the integro-differential equations is derived.Moreover,when the individual gains size distribution is exponential f(x)=ve-vx and penalty function ω(x)=e-r2x,the explicit expressions for mδ(u) are obtained.

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Service Design of the Network Examination System Based on Spring

DING Zhen-Fan

journal6 2013, 34 (1): 21-25. DOI: 10.3969/j.issn.1007-2985.2013.01.006

Abstract （2674）

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In the analysis of network examination process,this paper undertakes service modeling for each link of students operating part and designs service for the examination control,generating examination paper,paper display,paper marking,examination paper logging and papers analysis.The system,implemented by AJAX combined with Spring technology,gives the ideas for application service invocations and application integration.The Bean deployment in IOC container,as well as the Json packaging method for paper transmission between application services are discussed.

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Realization of Clustering Algorithm Based on Density

DUAN Ming-Xiu, TANG Chao-Lin

journal6 2013, 34 (1): 26-27. DOI: 10.3969/j.issn.1007-2985.2013.01.007

Abstract （2756）

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The OPTICS clustering algorithms is an large database,density-based clustering algorithm.This algorithm is realized based on the core object and reachability-distance.For every core object,all objects in its neighbourhood will be sorted by the reachability-distance from this core object,and the one with the minimum reachability-distance is always chosen to update information.The realization of OPTICS algorithm adopts priority queue to accelerate the speed.The clustering performance is tested by UCI datasets.The results show that the OPTICS algorithm achieves a clustering structure based on density.

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Traffic Sign Recognition Algorithm Based on Feature Matching

JIANG Zhi-Guo, CHEN Xiao-Lin

journal6 2013, 34 (1): 28-32. DOI: 10.3969/j.issn.1007-2985.2013.01.008

Abstract （3086）

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Intelligent transportation system(ITS) is currently a hot research subject,and the key technology in ITS is traffic signs feature extraction technique.This article,focuse on the characteristics of the traffic signs extraction,proposes use of the scale invariant feature transform algorithm to extract point characteristics of the traffic signs and use of minimum distance classifier to classify feature vectors.By Matlab,simulation is used to test the results.The results show that the characteristics of the traffic signs can be better detected.

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NCRE Registration System Based on B/S Mode

WEI Yan

journal6 2013, 34 (1): 33-36. DOI: 10.3969/j.issn.1007-2985.2013.01.009

Abstract （2908）

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In order to improve the NCRE registration form which restrict the time and place make,students’ registration and learning convenient,and make administration more efficient,paper,based on demand analysis,uses ASP.NET technology and SQL Server 2005 database to design a new system,which contains login/out function,computer grade examination registration function,and information publishing function.The system achieves fast registration,convenient search and information sharing.It also provides fully functional backstage management.This system can meet students’ and administrators’ needs.

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Terahertz Electromagnetic Field Response of Multiwall Carbon Nanotubes

LIAO Wen-Hu, GUO Jun-Ji

journal6 2013, 34 (1): 37-41. DOI: 10.3969/j.issn.1007-2985.2013.01.010

Abstract （2915）

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Utilizing Floquet scattering method,the paper investigates the electronic density of states (DOS) and renormalized resistance of multiwall carbon nanotubes under the irradiation of the terahertz electromagnetic fields.With the irradiation frequency of the external field remaining unchanged,the system DOS is observed to increase at first and then decrease oscillately,while the renormalized resistance of the system firstly decreases rapidly and then increases osicllately with the increasing irradiation intensity.On the other hand,the situation for the unchanged irradiation intensities is some what different,the system DOS increases quickly to a saturation value and then decreases oscillately and slowly,the renormalized resistance decreases urgently to be nearly 0.10 and then increases slowly.

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Wireless Mouse Design Based on CC2500 and AVR MCU

ZHAN Jie, WANG Jin-Song, LI Shi-Yao

journal6 2013, 34 (1): 42-45. DOI: 10.3969/j.issn.1007-2985.2013.01.011

Abstract （2501）

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Wireless mouse are used more and more widely in the computer for its convenience.A Wireless mouse based on the PS / 2 port is designed,which uses the 2.4G band's CC2500 chip.That type of mouse can directly replace the existing mouse without drivers.Test results show that the function and energy consumption of the designed wireless mouse can meet the common operational needs.

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Fuzzy Controller Design of DC Servo Motor Based on MICROWIN

LU Wan-Yin

journal6 2013, 34 (1): 46-50. DOI: 10.3969/j.issn.1007-2985.2013.01.012

Abstract （2516）

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Fuzzy control technology has been widely used in modern control，for its control is better than the traditional PID regulator control.To improve the existing equipment,fuzzy control in PLC and micro-computer is researched in this paper.Verified by experiments,its effect is much better than self-tuning PID regulator control.

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Power Transformer Fault Diagnosis Based on Genetic Wavelet Neural Network

MA Gui-Yu, WANG Xue-Dan, WAN Dan-

journal6 2013, 34 (1): 51-55. DOI: 10.3969/j.issn.1007-2985.2013.01.013

Abstract （2794）

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The chromatographic analysis of the power transformer oil dissolved gas is an important method for transformer fault diagnosis by which the operating state of the transformer and the potential transformer internal fault can be grasped indirectly.Artificial neural network has been applied in the power transformer fault diagnosis successfully,but the large number of learning samples and the complicated input-output relationship will lead to a slow network convergence.To resolve the problem,this paper employ the wavelet neural network improved by using genetic algorithms in power transformer fault diagnosis,thus overcoming the shortcomings of local minima and slow convergence speed.

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Power Management of Wireless Sensor Network Based on Network Coding

LIANG Ping-Yuan, HUANG Guang-Ya, LU Zhi, XU Qian

journal6 2013, 34 (1): 56-60. DOI: 10.3969/j.issn.1007-2985.2013.01.014

Abstract （2448）

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Wireless sensor networks are often driven by batteries when they are used in gathering data or ubiquitous computing.Therefore,energy consumption is the key issue in designing wireless sensor network system.When network coding is applied,intermediate nodes may send out data packets that are linear by minimizing the number of transmissions required to communicate a given amount of information across the wireless sensor networks.The less the number of transmissions is,the less the energy consumption will be.The transmission process and the principle of saving energy in wireless sensor networks based on network coding are analyzed,and the energy efficienly of the proposed solution using network coding is compared with non-network coding solution.The results show that the transmission power can be reduced efficiently by network coding,and it will benefit the lifetime of wireless sensor networks.

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Research on Adoption Model of Mobile Digital Library Services in Triple Play Environment

ZHAN Wei, TANG Zhi-Jun

journal6 2013, 34 (1): 61-65. DOI: 10.3969/j.issn.1007-2985.2013.01.015

Abstract （2222）

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Aimed at the importance of mobile digital library services in triple play environment and based on the theory of extended technology acceptance model,an adoption model of mobile digital library service is proposed by analyzing the related factors of services adoption.The model is classified into three categories:interface characteristics,personal characteristics and system characteristics.The proposed model can assist libraries designing suitable mobile digital library services to meet the increasing information demand.

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Construction of a Categorization Framework for CVE Based on SVM

PENG Hua, LI Zong-Shou

journal6 2013, 34 (1): 66-71. DOI: 10.3969/j.issn.1007-2985.2013.01.016

Abstract （3021）

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The CVE dictionary can not design effective defense strategies for clustered system’s vulnerabilities because of it’s lack of categorization and generalization capabilities.To address such shortcomings,this paper propose a CVE categorization framework called CVE Classifier,which can categorize CVEs according to various taxonomic features.CVE classifier automatically extract the training data from the associated vulnerability databases (including:BID,X-Force and Secunia) and builds learning models for taxonomic features based on it by using SVM.

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Extraction of Indirubin from Indigo Naturalis and Its Antioxidant Activity

CHEN Li-Hua, WANG Xiao-Jing, LIAO Wei, XIAO Bin, TAN Lin-Yan, LONG Jin-Guo

journal6 2013, 34 (1): 72-76. DOI: 10.3969/j.issn.1007-2985.2013.01.017

Abstract （2994）

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The indirubin was extracted from natural indigos by using ultrasonic-assisted ethyl acetate.With the same concentration of ascorbic acid and Vc as the control，the antioxidant activity of indirubin was investigated by testing scavenging effects of ·OH and against the peroxidation of oils.The results showed that the extraction ratio of indirubin reached 0.12% under the following conditions:ethyl acetate as extraction agent,1∶10 (g/mL) of material-liquid-ratio,40 w ultrasonic power,13 kHz ultrasonic frequency and 250 W heating power within 50 min.Indirubin extract exhibited ability to remove ·OH and good inhibitory effect on peroxidation of oils.The antioxidant activity was increased with concentration of indirubin increasing,and the activity was better than those of ascorbic acid and Vc.

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Industrial Test of Blast Furnace Gas Washing Wastewater Treatment

LI Chuan-Chang, TANG Ai-Dong

journal6 2013, 34 (1): 77-81. DOI: 10.3969/j.issn.1007-2985.2013.01.018

Abstract （2778）

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In order to meet the requirement of recycling use of blast furnace gas washing wastewater,the complex coagulant of Polyaluminium Chloride (PAC) and Polyscrylamide (PAM) were used to treat this wastewater.The optimum condition of treatment was explored.Also,the flocculation performances of the solid PAC and liquid PAC were compared.The results showed that the flocculation ability of liquid PAC is better than that of solid PAC,and the compatibility of liquid PAC with PAM is also better than that of solid PAC;the liquid PAC has the advantages of low dosage and better effect in complex treatment test.

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A New Species of Sinocyclocheilus from Kunming,Yunnan——Sinocyclocheilus wui sp nov.

LI Wei-Xian, AN Li

journal6 2013, 34 (1): 82-84. DOI: 10.3969/j.issn.1007-2985.2013.01.019

Abstract （3329）

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A new species of Sinocyclocheilus found in Mingyihe area of Yunnan province is described in this paper,and it is named Sinocyclocheilus wui sp nov in memary of Wuxian-wen,a ichthyology predecessor.

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The Awareness and Inherit of Knowledge of Epidemic Disease of Domesticated Animals and Poultry in Xiangxi Folks and Folks’ Prescription

LI Jun-Nian, YANG Dong-Mei, XUE Da-Yuan, ZHOU Jian-Wu, LIANG Jing, XIE Wen-Hua

journal6 2013, 34 (1): 85-88. DOI: 10.3969/j.issn.1007-2985.2013.01.020

Abstract （2709）

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The traditional knowledge and awareness of shared interests on animal epidemic disease prevention and control among local aboriginal in Xiangxi were surveyed among farmers,livestock farmers,rural veterinarians and livestock traders through individual interviews,group discussions and questionaire from July to September in 2011.The results show that the indigenous people (aged 35~55) is the not only major carriers of traditional knowledge of livestock disease prevention and control,but also the main executer in livestock industry;small-scale livestock farmers rely mainly on the local veterinary medicine for sick livestock during early treatment;although local indigenous people possess very important traditional knowledge of livestock disease prevention and control,they do not know how to protect or share the benefits of the traditional knowledge.Meanwhile,according to the properties and uses for the treatment and prevention,Local herbs are classified into 15 categories,and 10 prescription commonly used by local indigenous for animal disease treatment are also listed.

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Influence of Seedling Culture from Different Segments of Kudzuvine Root on Seedling Growth

TANG Wei, HU Ying-Chao, CHEN Feng, LI Qiao, TENG Zhao-Jun, LIU Yun-Jiao, ZHOU Zi-Meng, TIAN Qi-Jian, GU Zhong-Cun

journal6 2013, 34 (1): 89-92. DOI: 10.3969/j.issn.1007-2985.2013.01.021

Abstract （2710）

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The upper,middle,and lower segments of Kuzdvine root were sheaved for seedling culture.Emergence rate,average plant height,and root length and thickness being statistic index,the growth of seedlings were analyzed.The results show that the middle segments have the highest emergence rate(above 80%),and average height,length and thickness the seedlings from the middle segments are higher than those from other segments.Moreover,seedlings from the middle segments have rhizobium.In conclusion,seedling culture from middle segments of Kudzuvine root can be promoted.

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Harm of Sagra Frmorata to Kudzuvine Root in Xiangxi

LI Qiao, CHEN Feng, HU Ying-Chao, TANG Wei, WANG Chao-Jun, ZHOU Zi-Meng, GU Zhong-Cun

journal6 2013, 34 (1): 93-96. DOI: 10.3969/j.issn.1007-2985.2013.01.022

Abstract （2967）

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Sagra femorata is the main pest for Kudzuvine Root.The authors observed its life habit and harm to Kudzuvine Root for three years.The results show Sagra frmorata does harm to Kudzuvine root in the whole of its life course,especially in its larva period,when the harm is the most serious and lasts the longest.In conclusion Sagra femorata does great harm to the growth and production of Kudzuvine root.

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Counting of One Kind of Generalized Lattice Path

TANG Bao-Xiang, REN Han

journal6 2013, 34 (2): 1-4. DOI: 10.3969/j.issn.1007-2985.2013.02.001

Abstract （2105）

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The generalized lattice path is made by joining path which is on a pair of diagonal vertices on the chessboard of m×n.The counting formula of the generalized lattice path whose length is m+n+2 on chessboard of m×n has been obtained by using the counting method of the spacing permutations.

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Near-Optimality in Stochastic Control of Stochastic Age-Dependent System with Markovian Switching and Fractional Brownian Motion

ZHANG Qi-Min, SHI Jian-Wei

journal6 2013, 34 (2): 5-11. DOI: 10.3969/j.issn.1007-2985.2013.02.002

Abstract （2382）

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A class of stochastic age-dependent system with Marvokian switching and fractional Brownian motion is introduced，and the necessary conditions for near-optimality are established.The conditions are described by an adjoint process and a nearly maximum condition on the Hamiltonian.The proof of the main results is based on Ito formula，Ekeland’s variational principle and some estimates on the state and the adjoint process with respect to the control variable.

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Some Problems of the AHP and Its Application

XU Yong-Lin

journal6 2013, 34 (2): 12-18. DOI: 10.3969/j.issn.1007-2985.2013.02.003

Abstract （2581）

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The analytic hierarchy process (AHP) is widely used in many fields as a classical multi attribute decision-making approach.Through studying the basic theory of AHP,the AHP method was given to determine weight.Method and procedure to solve multi-objective decision by AHP are described.Through the specific examples of property purchase,scientific methods to make consumption decision are presented.

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Applying Definited Integral with a Parameter to Prove the Wallis Formula

HE Yu-Bo, WANG Ya, LUO Si-Wen, PENG Li

journal6 2013, 34 (2): 19-21. DOI: 10.3969/j.issn.1007-2985.2013.02.004

Abstract （3402）

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A definite integral with a parameter is applied to design a new way to prove Wallis Formula.

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Two Notes on the Inequalities of Positive Definite Hermite Matrix Trace

SONG Yuan, ZHOU Qi-Sheng

journal6 2013, 34 (2): 22-25. DOI: 10.3969/j.issn.1007-2985.2013.02.005

Abstract （3171）

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In this paper,we study the ineqeality’s problem for the trace of positive definite Hermite matrix.Based on two results of real inequalities,together with Neumann inequality,two inequalities of positive definite Hermite matrix trace are obtained.

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File Monitoring Based on Spring Integration Message Flow

DING Zhen-Fan

journal6 2013, 34 (2): 26-30. DOI: 10.3969/j.issn.1007-2985.2013.02.006

Abstract （3778）

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Spring Integration provides a simple,efficient mechanism to realize message oriented application integration.It adopts declarative configuration definition connection between message channel and message processing unit.Spring Tool Suite provides a visual toolbox to realize message flow process layout.Combined with a directory file security inspection application,this paper gives the specific programming processing method.Through message files all documents state information is stored in a directory.When detecting,the file information in the directory is compared with the recorded information from the message file,in order that the file changes should be found,and a notice mail be automatically sent to the manager.

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Computer Encoding and Fonts Creating of Bantang Hmong Language Characters

MO Li-Ping, ZHOU Kai-Qing, JIANG Xiao-Hui

journal6 2013, 34 (2): 31-35. DOI: 10.3969/j.issn.1007-2985.2013.02.007

Abstract （2539）

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National language characters information processing is of great significance for protecting the national cultural heritage and promoting national culture.Both computer coded representation and fonts creating are the basic works of national language characters information processing research.The glyph feature of Xiangxi Bantang Hmong Language Characters is analyzed.On the basis of character encoding standard and font technology being introduced,the encoding scheme of Bantang Hmong Language Characters,which is based on the Unicode standard in Windows environment,is proposed.And then,according to Bantang Hmong Language Characters,the method of making matrix font based on Photoshop technology and the concrete steps of creating fonts based on Truetype technology are given.

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Design of Web Content Monitoring System for Intranet Users

ZHOU Tie, DUAN Ming-Xiu

journal6 2013, 34 (2): 36-40. DOI: 10.3969/j.issn.1007-2985.2013.02.008

Abstract （2775）

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A web content monitoring system for intranet uses’ security is desigued.The overall design and the design of the key components such as supervision agent,sniffer,data center and console are described in detail.

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Experimental Study on Elliptically Polarized Light and Partially Polarized Light

WANG Xiao-Yun, DENG Ke, SUN Jing, HUANG Yong-Gang, WANG Zong-Cheng

journal6 2013, 34 (2): 41-45. DOI: 10.3969/j.issn.1007-2985.2013.02.009

Abstract （4558）

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Elliptically polarized light and partially polarized light show similar change in light intensity through a rotatable,so it is difficult to differentiate them.Application of two 1/4 wave plates in the path of elliptically ploarized light and one 1/4 wave plate in the path of partially polarized light is a way to distinguish them from each other.The experiment results showed that the intensity of partially polarized light changed with no extinction phenomenon，but the intensity of elliptically polarized light changed with the extinction phenomenon,and the elliptial polarized light changed into shallow polarized light through 1/4 wave plate.

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Protocol of Selective Repeat Based on the Data Link Layer

CHEN Xi, ZHOU Xiao-Qing, ZHAO Han, ZHANG Pei

journal6 2013, 34 (2): 46-49. DOI: 10.3969/j.issn.1007-2985.2013.02.010

Abstract （2754）

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Qubits must be sent again when some qubit errors occur in the data frame in the quantum network between the two communicate sites.Although this repeat guarantees the data accuracy,the pressure of the communication channel is increased.In order to reduce the pressure of the channel and improve the efficiency of selective repeat protocol,the authors analyze the existing selective repeat protocol from the process of quantum states’ replication and teleportation.So the cache of the channel is introduced and the selective repeat protocol of the data link layer is improved.Furthermore,the authors compare the efficiency of protocol and the utilization ratio of channel with previous scheme and provide a reference for seeking more effective and efficient communication means.

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Electric Field Distribution of New One Dimensional Linear Function Photonic Crystals

ZHANG Si-Qi, BA Nuo, WU Xiang-Yao, LIU Xiao-Jing, WANG Jing, LI Hong, GUO Yi-Qing

journal6 2013, 34 (2): 50-55. DOI: 10.3969/j.issn.1007-2985.2013.02.011

Abstract （2641）

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This paper researches the transmissivity of the one dimensional linear function photonic crystals,and the effect of different period numbers and different optical thickness on the field intensity in photon crystals.Some new results different from the conventional photonic crystals are obtained.When the medium BandArefractive indexes distribution function for linear increase,transmissivity of linear function photonic crystal can be far greater than 1;with the increase of period numbers,the maximum value of electric field strength increases significantly;the change of period numbers can make the magnification of the function photonic crystal field change accordingly.Such results provide theoretical approach and idea for photonic crystals preparation and applications.

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Digital Watermarking Algorithm Based on Block SVD in Wavelet Domain

YU Shuai-Zhen, YIN Shi-Shu, GAO Ling

journal6 2013, 34 (2): 56-60. DOI: 10.3969/j.issn.1007-2985.2013.02.012

Abstract （2487）

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According to the principles,characteristics and the advantages of the application of DWT and SVD theory in watermarking field,this paper presents a singular value decomposition of block-based watermarking technology in wavelet domain.The decomposition advantages of wavelet and singular value are made full use of.In accordance with the idea of carved blocks in JPEG program,wavelet transformation is firstly made to the host image.Then singular value decomposition is done to the low frequency parameters.The largest singular value of each block is selected to a new matrix to be embedded into water-mark information.Moreover,multiple extraction methods is presented to cope with various attacks.Experimental results show that the algorithm is robust enough to some image degradation process.

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Optimal Control of Variable Air Volume Systems

DENG Xiao-Fei, HUANG Guang-Ya, SONG Zhi-Guo, ZHANG Yin-Xing

journal6 2013, 34 (2): 61-63. DOI: 10.3969/j.issn.1007-2985.2013.02.013

Abstract （2661）

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It is difficult to apply Variable Air Volume (VAV) air condition system for its complex control process,so constant air volume system is still widely used in China.In view of this situation,the optimal theoretical strategies of controlling the temperature of air supplied by VAV air handling unit are presented.Then Matlab simulation software is used to analyze the results.The simulation results show that this algorithm can better operate with the lower energy consumption.

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Influence of Control Agent on Preparation of Aragonite Type of Calcium Carbonate Whisker

ZHAO Li-Na, CHEN Lu, WANG Yue

journal6 2013, 34 (2): 64-67. DOI: 10.3969/j.issn.1007-2985.2013.02.014

Abstract （2572）

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Calcium carbonate is an important kind of inorganic chemical material.Different kinds of calcium carbonate whiskers play different roles in the human’s life.There has been wide research on aragonite type in recent years owing to its various functions as a new material.There are some approaches to produce this kind of chemical,and the control agent is the key to successful preparation.This paper classifies and summarizes the mechanism of some common control agents in preparation of aragonite type of calcium carbonate.

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Determination of Tannin Content from Beihua by UV-Chrominated and Hide Powder Method

ZHANG Ci-Hai, OuYang-Yu-Zhu

journal6 2013, 34 (2): 68-71. DOI: 10.3969/j.issn.1007-2985.2013.02.015

Abstract （2506）

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The content of tannin from Beihua was analyzed by UV-chrominated hide powder method.The methodology of experiment results were investigated.The stability of the solution is good at 20 ℃.After 20 min，tannin can be completly adsorbed by chrominated hide powder.The content of tannin from Beihua analyzed by this method resembles that by pharmacopeia method.The average recovery rate of this method is 98.86%,RSD is 0.85.The RSD of precision,repeatability is 0.07% and 0.64% respectively.

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Microbial Detoxification of Hexavalent Chromium from Chromium-Containing Slag

HE De-Wen, LIU Huan, JIANG Chong-Wen, DUAN Hao-Peng, LIU Lei

journal6 2013, 34 (2): 72-76. DOI: 10.3969/j.issn.1007-2985.2013.02.016

Abstract （2413）

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In this paper,treatment and recovery of hexavalent chromium(Cr(Ⅵ)) from chromium-containing slag by bacteria was studied.The work showed that a bacterial strains of Ch-1 isolated from chromium-containing slag can efficiently accelerate Cr(Ⅵ) leaching and remove it.Moreover,bacteria Ch-1 can effectively change the structure of chromium-containing slag by Scanning Electron Microscopy(SEM) and the Energy Dispersive X-Ray (EDX),which is benefitial to Cr(Ⅵ) leaching and its detoxification by changing Cr(Ⅵ) to Cr(Ⅲ).The effect of detoxification by bacteria of Ch-1 is obvious,the toxicity in leached slag was 3.3 μg/g lower than the national standard of 5 μg/g,and the recovery rates of hexavalent chromium are more than 90%.

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Influence of Habitat Inside and Outside Valley on Morphology and Cytology of Sambucus Chinensis

XU Liang, CHEN Gong-Xi, ZHANG Jie, ZHANG Dai-Gui, ZHU Qun-Ying

journal6 2013, 34 (2): 77-83. DOI: 10.3969/j.issn.1007-2985.2013.02.017

Abstract （2383）

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Sambucus chinensis Lindl，a large herb widely distributed inside and outside valley in northwestern Hunan province were selected for the exploring study on the influence of on valley special-habitat cytology and plant morphology.(1) Morphological comparison of Sambucus chinensis outside valley and inside valley indicates the difference in number of unfertile flowers,long/wide of leaflets,fruit color and stipule shape,but there are no obvious differences in the number of arris,the number of lateral branches,number of pitches,length of longest internodes and number of leaflets；(2)The leaf epidermal cells are usually irregular bearing with the anticlinal walls undulate;the stomatal density of S.chinensis of inside population is obviously higher than that of the outside one,37.6±7.47 per mm2 and 26.8±5.81 per mm²,respectively;while the stomatal index of S.chinensis of outside population (31.38%) is slightly higher than that of the inside one(29.17%)；(3)Mitotic chromosome numbers of S.chinensis outside and inside valley are diploidy with 2n=36 reality,and is incompatible with previous reference.Karyotype of S.chinensis is 2B and inside population with a karyotype formula of 2n=36=16m＋14sm＋2st＋4t,and 2n=36=22m+14sm for outside population.Besides,the population inside valley appears more advanced than the outside population for their Ask values are 67.76% and 61.97%,respectively.

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Predition of the Net Length of Paper Machine Drying Net

DING Qi-Min

journal6 2013, 34 (2): 84-86. DOI: 10.3969/j.issn.1007-2985.2013.02.018

Abstract （2087）

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According to the field study of paper machines,the working principle of paper machine and the operation of the product “drying net” by Aoboni Co. are explored.The mathematic model of the functional relationship between the net length and the adjusting roller of paper machine is established.This model can be used to direct the production,hence improving the producing efficiency and the working environment.

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