Table of Content

12 April 2013, Volume 41 Issue 2

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Conclusions on Direct Product of P-semi-simple BCI-algebra

LIU Jun

2013, 41(2):  5-6. 

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The conditions are discussed when P-semi-simple BCI- algebra is its sub-algebra direct product，using the properties of the P-semi-simple BCI-algebra.

Idempotency of Linear Combination of n Idempotent Matrices

CUI Run-qing，LI Xing-lan

2013, 41(2):  7-9. 

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Let P₁，P₂，…，P_n be n different nonzero mutually commutative m×m idempotent matrices and c₁，c₂，c_n be nonzero complex number，a set of sufficient conditions are given for the matrix P = c₁P₁ + c₂P₂ + … + c_nP_n still to be an idempotent matrix under the condition that the mutual product is zero or the mutual product is equal to either one.

Strong Law of Large Numbers of Sum of Products for φ -mixing Sequence

CAO Zheng-fang

2013, 41(2):  10-13. 

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Studies the moment inequalities for φ -mixing sequence，with the moment inequalities，obtains the three series theorem for φ -mixing sequence and the strong law of large numbers of sum of products.

Synthesis，Characterization and Optical Properties of ZnO Nanosheet Films

TU Ya-fang，NIU Xiao-juan

2013, 41(2):  14-17. 

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ZnO nanosheet films were synthesized on quartz glass substrates with ZnO seed-layers with a hydrothermal method. Their morphologies，structures，and optical properties were investigated with scanning electron microscope，X-ray diffractometer，transmission electron microscope and photoluminescence spectrometer，the possible growth mechanism was explored. The results show that these ZnO nanosheets are single crystalline with hexagonal wurtzite structure， they prefer?entially grow along the < 101 ˉ0 > directions. The room-temperature photoluminescence spectrum are composed of a sharp ultraviolet emission peak（380 nm）and a wide visible emission band. The visible emission band can be divided into three emission peaks centered around 550，620 and 760 nm，respectively.

Optical Orientating and Tracking System Based on Nios II

QI Wei-min，ZHOU Jun，ZHANG Xia

2013, 41(2):  18-22. 

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Introduces a optical orientating and tracking system based on SOPC platform，the core of the platform consist of FPGA of Altera and embedded Nios II CPU. The system adopts DE2 development board，OV7670 digital camera and digital touch screen. It is easy for operating and can automatically locate and track the moving object in a certain range. It also can be adjusted with manual operating. Experiment shows it has low power consumption，flexibility，expansibility，and it can locate and track targets steadily and accurately.

An Improved Servo Circuit Based on Passive Rubidium Atomic Frequency Standard

LEI Hai-dong

2013, 41(2):  23-27. 

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Servo circuit is the core control component of the atomic frequency standard. In this paper，an improved servo system method is described in detail of DDS achieves the wide range synthesizer control，and synchronous phase based on the traditional technology. Through the mentioned improvement，on one hand，overcomes the lock losing problem in traditional technology，on the other hand，makes the atomic frequency standard have the function of function mode indication and judgement.

Research of a Micro-scale Measurement System Based on Variable Single-slit Diffraction

LV Hong-fang，TAN Xiao-ping，WU Tie-shan

2013, 41(2):  28-30. 

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A micro-scale measurement system based on single-slit diffraction is designed. The system changes tiny scale determination into the variable slit-width by mechanical lever，through the detection of single-slit diffraction fringes to obtain the micro scale of test objects. The measurement results of standard feeler show that the system has high accuracy，easy operation，reliable measurement result and so on.

Chemical Modification and Bacteriostatic Action of Natural Flavonoid Rutin

GUO Yan-hua，XU Guo-quan，LI Ai-hua，ZHANG Yu-min

2013, 41(2):  31-35. 

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Based on the chemical modification of rutin，synthesized the complex of rutin of first transition series chemical element of life，the comparative study of bacteriostatic action of rutin complexes was carried out. The results showed that the solubility of rutin complexes in water was better than that of rutin；bacteriostatic activity of rutin complexes was strong or weak as：Ru-Cu ＞Ru-Zn＞Ru-Co＞Ru-Ni＞Ru-Mn＞Ru-Cr＞Ru-Fe＞Ru，bacteriostatic activity stability of the rutin complexes was better than rutin，the product of rutin chemical modification had better bioactivi? ty than rutin.

Determination of Phenyl-mercury in Water Samples with Hydride -generation Atomic Fluorescence Spectrometry After Enrichment with β-cyclodextrin Cross-linking Polymer

YANG Xiao-qiu，QIU Hai-ou

2013, 41(2):  36-39. 

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Proposes the method utilizing β-cyclodextrin cross-linking polymer enrich phenyl-mercury in sample water，chooses ethanol to elutriate off the enriched phenyl-mercury，and uses hydride-generation atomic fluorescence spectrometry method to quantitatively analyse digestive product，through experiment to optimize the chemical and instrument conditions. Discusses the influence of brominating agent dosage and brominating time to digestive rate，the influence of oscillating time to adsorption rate，the inflence of eluting time to eluting rate，discusses the factors such as the interference of concomitant ions，the precision and the detection limit，analyses the sample and draws the standard curve. The method is sensitive，selective and precise，the detection limit is 0. 36 ng/mL and RSD is 2. 29%（n = 10，c = 4 ng/mL）.

Research Progress of Fine Dust Control Technology

SHI Ling，CHEN Hong-mei，YANG Cheng-wu

2013, 41(2):  40-46. 

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To strengthen enviromental governance，it is necessary to comb the fine dust control technology，providing a technological clue and research basis for further study. Combining the latest document of fine particles control technology at home and abroad，backtracks the routine dedusting technology，combs the research achievement of fine particle coagulation removal theory and technology，focuses on technological feature of electric coagulation technology，acoustic coagulation technology，vapor condensation technology，meanwhile，analyses and concludes the other coagulation tech? nology such as thermal coagulation，chemical coagulation，magnetic coagulation，turbulent coagulation，and light coagulation. On the basis of comprehensis analysis of these technology，points out the development trend of fine particle control technology，aiming to provide references to researchers.

Encoding Scheme Based on Words

CHENG Yuan-bin

2013, 41(2):  47-52. 

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Language is the main tool of thinking. Words are the basic unit of language. However，character encoding is the present encoding method in computer information processing. With in-depth development of computer information processing，the disadvantages of character encoding increasingly appear. From the basic needs of information processing and the basic characteristics of the words，an unified encoding scheme on comprehensive consideration of word-character，and word-oriented is proposed. The scheme based on the existing coding standard UTF-16，maintains the existing character encoding，adds words coding；words encoding are logical organized with the concept space tree including some semantic information and semantic relationship，adapting to cluster retrieval and language code convert between two languages are the principles of spatial organization. At last，points out several problems which need further study.

Current Situation and Development Trend of Campus Information Requirement Under Mobile Internet Information Environment：Based on Investigation on Information Requirement of College Students with Cellphone

ZHANG Wei-hao，CHENG Hai-fang

2013, 41(2):  53-56. 

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With fast development of mobile internet technology，mobile network approach has become one of the main channels to obtain campus information，moreover，mobile internet has gradually become a new dissemination media and interactive port for the mobile internet information and it will give significant influence on university students' major learning，campus life and social activity etc. Therefore，mobile phone users among university students were surveyed as research object. Mainly through questionnaires，assisted with interview and group discussion to make in-depth investigation on current situation（channel，content，etc.）of campus information requirement. Based on clarifying the purpose of information requirement of university students mobile phone users，analyzed the channel to obtain campus information and content of campus information website so as to adapt to the development of mobile internet technology，also explored new features of campus information requirement of university students，such as convenience，functionality，sharing，sociability，etc. Finally，proposed that campus information requirement should move forward to provide high-quality service for mobile-learning in campus.

Rope Coiling Machine Design Based on PLC and Servo Control

WU Ming-qi，ZHOU Wu-neng，ZHANG Zhi-jie，SUN Pei-de

2013, 41(2):  57-60. 

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Mainly in view of the present half automation state of the rope-making industry，raises a automation reconstruction scheme of the rope-making machinery，introduces a design project of rope coiling machine based on PLC and servo motor control，and presents a software and hardware design of electric part of string coiling machine in details，then focuses on the servo motor's application on the coiling head's position control of the rope coiling machine. The advantages of the machine are rope-making process more flexible，users' operation more simple，modifying process parameters easier，the design upgrades the producing efficiency.

Analysis on Mechanism of Electro-plastic Effect and Its Prospect

PENG Shu-hua，YANG Jun-jie，LI Yao

2013, 41(2):  61-65. 

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Offers a comprehensive evaluation of the mechanism research of electro-plastic effect. Introduces the influence of electronic wind emerging from drift electron under application of electric field to the density，distribution，structure of movable dislocation，to the stacking fault energy and to the microstructure，and also makes a summary of the existing theoretical research of electro-plastic effect. At last，the prospect of electro-plastic effect and problems to be solved are analysed.

Effect of Different Cultivation Methods on Yield and Quality of Four Prunella L. Varieties

LIAO Xin-an，DONG Yuan-huo，ZHANG Liang-hong，CHEN Sheng-qiu，HE Shi-min

2013, 41(2):  66-69. 

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To screen high yield and good quality Prunella L. varieties，which will be suitable for cultivation at Qichun areas，the yield and quality of four Prunella L. varieties（Anhui Bozhou，AHX；Hubei Qichun，HQX；Jiangxi Zhangshu，JZX；Henan Queshan，HNX）were evaluated using randomized block design，taking the same plot，the same sowing planted period，with two ways which were direct sowing culture and transplanting cultivation. The results showed that JZX and HNX， the comprehensive performance， whether quality content （rosmarinic acid content were 0.42% and 0. 40%，respectively）or yield（the average yield of dry grain per mu （667 m²）were 168. 0 kg and 159. 3 kg，respectively）were better. Research of two culture methods for AHX and HQX showed that direct sowing culture was higher than transplanting cultivation. Suggests that JZX and HNX should be developed in a large area for introduction demonstration and promotion in Qichun areas，and HQX should be moderately developed，and should focus on direct sowing culture.

Identification of Genetic Relationship Among Several Chinese Strains of Ganoderma with RAPD and rDNA Molecular Markers

HUANG Hao，XU Guo-quan，ZHOU Shi-li

2013, 41(2):  70-74. 

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Uses several common Chinese strains of ganoderma as researching material，adopts RAPD，18SrDNA and ITS molecular markers to analyse the genetic relationship among each strain of ganoderma，and compares the analysing results of three methods，to explore the suitable technical method on analysing ganoderma. RAPD analysis show that six strains are clustered into 3 groups the similarity coefficient of 0. 584 Ganodermaluidun，Ganodermaluidum HG，Ganodermasinenses and Ganodermaatrum as a category；Xuezhi and Coriolusversicolor are each clustered into a single category. ITS analysis show that ganoderma has lower similarity（43. 8% ~ 88. 0%），similarity of Ganodermasinenses and Xuezhi is 43. 8%. In the lower similarity level，Ganodermaluidun and Ganodermasinenses are classified as a category，Coriolusversicolor and Xuezhi are each classified as a single category，which is consistent with the RAPD analysis and also consistent with the traditional classification. The results of 18SrDNA molecular markers are very different with the first two results，indicating that 18SrDNA molecular markers are not suitable for the classification research of ganoderma.

Resources Investigation and Current Situation of Application of Aquatic Plant in Wuhan City

DAI Xi-gang，XIONG Ting

2013, 41(2):  75-80. 

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Several typical urban wetlands in Wuhan have been selected，and the investigation and analysis on the species resource，distribution and application of aquatic plant have been carried out. The results showed that the main aquatic plant type in Wuhan were emergent plants，floating plants（including floating leaves and floating drift）and submerged plants，in which submerged plants had 44 types，emergent plants had 41 types，and floating plants had only 25 types. There were some prominent problems in application of aquatic plant，such as less species，limited application scope，monotonous configuration，lack of management，not enough research on ecological problems，insufficient knowledge of designers，and so on. Put forward some suggestions and countermeasures in accordance with these problems.

Research Progression of Spore Structure

JI Fang，LIANG Yong

2013, 41(2):  81-85. 

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The spore is a kind of dormant cell form of spore-producer bacteria to resist the disadvantage environmental conditions. Mainly introduces the static structure and dynamic character of the spore of bacillus，and also introduces research progression of the outer structure including spore coat and exosporium，the critical molecular composition and the function.

A Rat Pain Model for Conditioned Place Preference Experiment

YE Shao-jian，HUANG Nian-fang，CHEN Xiao-qing，TANG Ling-yan，LI Chang-lei

2013, 41(2):  86-88. 

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Objective：Establishing an back incision pain rat model to observe the subjective reaction of rats to acetaminophen with conditioned place preference（CPP）experiment. Methods：Made a skin cut then suture at the right lower back of rat，then used acetaminophen 100 mg/kg and observed CPP values for 4 times at 12 hours' interval；comparing the difference between preCPP and postCPP. Results：The postCPP values of incision pain rats were significantly increased compared with preCPP（P < 0. 05），while those of sham rats and control rats were not when compared with their preCPP. Conclusion：This rat back incision pain model is suitable for observing the reward effects of pain relieve agents with CPP experiment，and will be helpful to assess the subjective unpleasantness of animals to pain.

Analysis of Opening Reduction and Internal Fixation to Trimalleolar Fractures

WANG Jin-hua，JING Guang-wu，TONG Jie

2013, 41(2):  89-91. 

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Objective：To explore the clinical efficacy of open reduction and internal fixation to trimalleolar fracture. Methods：26 cases of trimalleolar fracture were collected and performed opening reduction and internal fixation. There were 15 males and 11 females. Lateral malleolus fracture used distal anatomical plate fixation， medial malleolus fracture used cannulated screws or wire tension band fixation， posterior malleolus fracture used cannulated screws or plate and screw fixation. Results：All cases were followed up for 12-18 months， All fractures healed，no wound infection，traumatic arthritis，joint deformities and other complications. Joint function were excellent in 18 cases，good in 6 cases，fair in 2 cases and bad in 0 cases. Conclusion：After trimalleolar fracture，full preoperative preparation and accurate open reduction and internal fixation，with effectively function exercise，can obtain good therapeutic effect.

Role of Continuous Magnesium Sulphate Intravenous Infusion for Treatment of Severe Tetanus of Adults

FANG Jun，SHAO Yong-sheng，ZHANG Ying-tian

2013, 41(2):  92-96. 

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Objective：To investigate the efficacy and safety of continuous magnesium sulphate intravenous infusion for treatment of severe tetanus of adults. Methods：The clinical data of 52 cases of severe tetanus from May 2000 to August 2010 in the Department of General Surgery of the Affiliated Hospital of Jianghan University were analysed retrospectively，the group treated with magnesium sulphate was 27 cases，and the group treated without magnesium sulphate was 25 cases. Results：2 cases died，and the left 50 cases were cured，and in the group treated with magnesium sulphate，the dosage requirement for sedatives reduced，the rate of using ventilatory support reduced，the complications reduced，and mean total expense reduced. Compared the two groups，the differenc was statistically significant（P < 0.05），the difference of mean hospital stays had no statistical significance （P>0.05） . Conclusion：Magnesium sulphate therapy can control the symptom of severe tetanus effectively，and reduce the dosage requirement for other sedatives，reduce the used of mechanical ventilation，simplify nursing care，reduce the complications，the total expenses are low，and administra? tion is convenient.

College Students' Physique Health Situation and Interventional Countermeasures

YIN Shao-feng

2013, 41(2):  97-100. 

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Using the methods of literature，mathematical statistics and comparative analysis to research the physique health status of students from the Nanhua college of Industry and Commerce. The results show that the college students' physical health situation are on ordinary level in general，girls are better than boys；overall body composition of male and female students are comparative good，but girls body are slimmer；cardiopulmonary system function of male and female students are low，and the girls are even lower，the girls' speed quality are worse，the boys' strength quality are worse. The recommendations：strengthen the physique test，intervene the body movement，intervene the living habits.

Discussion on Teaching Reform of Theoretical Mechanics Course

CHEN Zhen

2013, 41(2):  101-106. 

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Combined with the teaching practice，through analysing the present situation and the open problem of course teaching of theoretical mechanics course，expounds the necessity of course system and teaching reform of theoretical mechanics；Following the idea of teaching reform of theoretical mechanics，carries out the discussion on concrete reform embodiment from five aspects which include guiding ideology of teaching，teaching contents，teaching means，teaching methods and examination system，proposes the expected effect.

Analysis and Enlightenment of Medical Education System in France

LIU Yu-chen，LIANG Yong

2013, 41(2):  107-112. 

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Introduces the general situation of French medical education，reveals the feature of staged education，detailed illustrates the curriculum provision. Combined with the education system of France，analyses the feature during its medical students training which are the focus on synthesis of theoretical courses，the integration of theoretical teaching and clinical practice，the arrangement of plentiful noviciate and the encouragement of autonomic learning. The training of medical students in France also has the advantages of national overall planning，value on general family medicine，continuous reform. At last，proposes the reference points our country can take during the medical students' education on the curriculum reform，the training model and the training system for resident physician.