Volume 29,Issue 2,2006 Table of Contents

1 Dynamic Modeling and Analysis for a Humanoid Robot

LIU Ying-zhuo

2006, 29(2):1-5. DOI: 10.11835/j.issn.1000-582X.2006.02.001

[Abstract](779) [HTML](0) [PDF 0.00 Byte](0)

Abstract:
To resolve the kinematics modeling and dynamics modeling of a humanoid robot with complicated machine, a modeling method based on the conventional mechanism combined with neural network is presented. First the kinematics formulas are deduced by analyzing its geometry structure. Second, the dynamics models are built up with Lagrange-Euler method combined with the define of interactive force among all parts of the humanoid robot. The interactive force is realized by neural network method. Finally, the true robot parameters are applied to the model. The simulation results show the validity of the modeling. So, the method is practical and available.

2 Development of Technology of DSP Based Mechanical Vibration Data Real-time Ethernet Transmission

XlE Zhi-jiang , HU Ying-peng , ZHU Ming-xing , YAO Peng

2006, 29(2):6-8. DOI: 10.11835/j.issn.1000-582X.2006.02.002

[Abstract](761) [HTML](0) [PDF 233.40 K](978)

Abstract:
In accordance with the requirements of industrial mechanical vibration field data real-time transmission in the condition of multi-survey-point and mass data acquisition, an Ethernet data transmission method based on Ethernet controller RTL8019AS and TMS320C5402 DSP is presented. Packing data from A/D into UDP and IP package and controlling RTL8019AS through I/O mapped registers, high-speed DSP makes real-time communication high performance. Ethernet frame protocol and TCP/IP protocol are simplified for the specific purpose. And the interface technology between Ethernet controller RTL8019AS and DSP is solved. The system evaluation and debugging are made.

3 Design on Structural Parameters of Continuously Variable Transmission with Reflux Power

ZE Su-fang , SUN Dong-ye , QIN Da-tong

2006, 29(2):9-11. DOI: 10.11835/j.issn.1000-582X.2006.02.003

[Abstract](693) [HTML](0) [PDF 222.09 K](1025)

Abstract:
On the purpose of improving efficiency of continuously variable transmission with reflux power,efficiency of previous system under low gear and reverse gear have been analyzed to optimize its structure based on analysis of speed modulation characteristic and transmission efficiency of transmission system.What's more,with maximum speed ratio,minimum speed ratio of transmission system and speed ratio of reverse gear having been calculated,design method of structural parameters has been brought out.Finally,SC7101 as reference,design on structural parameters of continuously variable transmission with reflux power has been presented on the base of performance of previous structure.

4 Communication Platform Based CORBA and java in Collaborative Design

SUN Dong-mei , CHEN Xiao-an , LUO Tian-hon , FANG Yi-ping

2006, 29(2):12-15. DOI: 10.11835/j.issn.1000-582X.2006.02.004

[Abstract](693) [HTML](0) [PDF 379.17 K](984)

Abstract:
The present status and problem for collaborative design are analyzed. A communication system structure based CORBA principle and the Java distributed programming technology is developed. The capability of CORBA and Java supplying is compensated each other in this structure system. The integration of CORBA and Java is proved to be a more effective designing platform for distributed collaborative design in the area developing WWW-based applications. Highly efficient safe communication is realized for collaborative design.

5 Design of Virtual Instrument for Automobile Based on PC/104

QIU Jian-wei , TANG Bao-ping , FU Wei

2006, 29(2):16. DOI: 10.11835/j.issn.1000-582X.2006.02.005

[Abstract](542) [HTML](0) [PDF 298.20 K](184)

Abstract:
The design of virtual instrument for automobile based on PC/104 has been presented by comparing with the traditional auto meter. The paper focuses on the development environment, system construction and operation principle. The data of the virtual instrument is transported by CAN bus, and this system can monitor in real-time, display in digit and fire the alarm to the super-speed, save the record.

6 Reasoning Method Based on Motorcycle Design

HU Xiao , HE Yu-lin , DENG Hai-ping , LI Xiao-lin

2006, 29(2):19-22. DOI: 10.11835/j.issn.1000-582X.2006.02.006

[Abstract](762) [HTML](0) [PDF 312.73 K](213)

Abstract:
According to the needs of setting up a professional system based on motorcycle design,the CBR(case based reasoning) and RBR(rule based reasoning) methods are introduced.After discussing the difference between the two kinds of reasoning,a method of integrating them into the motorcycle design flow is put forward to realize the design reusable technology and improve the design efficiency,by using the CBR in the step of selecting the similar motorcycle and the RBR in project's modification according to correlative rules.

7 Influencing Factors and the Concept Model of Human-information System Interaction Efficiency

TONG Xiao-ying , YI Shu-ping , YANG Wen-cai , DING Jing

2006, 29(2):23-27. DOI: 10.11835/j.issn.1000-582X.2006.02.007

[Abstract](772) [HTML](0) [PDF 386.68 K](177)

Abstract:
The importance of human-information system interaction efficiency within enterprise informationization environment is analyzed.The intension of human-information system interaction efficiency is studied from definition,characteristic and evaluation.According to different properties,the influencing factors of human-information system interaction efficiency are divided into five kinds,including human factor,information system factor,management factor,environment factor,and technology factor.On this basis,the concept model of human-information system interaction efficiency is brought forward,and mechanisms of influencing factors to human-information system interaction efficiency are discussed in the model.The analysis indicates: As the core parts of the model,human factor and information system factor determine interaction efficiency directly.Management factor restricts or supports efficiency of human and information system.Environment factor and technology factor bring indirect influence to interaction efficiency by restricting or supporting human factor and information system factor.

8 Extensive Noise Control Model for Plastic & Rubber Sulfuration and Simulation

CHEN Kang-lu , CHEN Xiao-an , HE Ye

2006, 29(2):28-31. DOI: 10.11835/j.issn.1000-582X.2006.02.008

[Abstract](686) [HTML](0) [PDF 261.78 K](159)

Abstract:
For the problem of precision and real time control in the process of sulfuration,a new control model is put forward.All the noise existing in the sulfuration process are unified as one kind noise named as extensive noise,and the control system is self-adaptive in the process.The purpose of this strategy is to solve the problem preferred.The model comprises of two parts: one is Neutral Networks which deals with the advance sort,the other is dynamic self-adaptive system which is used to find the system's factors.The simulation result of dynamic self-adaptive system shows that this extensive noise controlled model is valid in the process.

9 Seal Imprint Verification with Hough Transform

CHEN Zhi-yun , LI Zhi-min , ZHAO Yong-tao , WANG Lin , HUANG Jun , LIN Yue-wei

2006, 29(2):32-34. DOI: 10.11835/j.issn.1000-582X.2006.02.009

[Abstract](758) [HTML](0) [PDF 181.89 K](159)

Abstract:
The authors propose a scheme for the seal imprint verification with the line parameter in difference matching image. The method can be used to match two images accurately. Then with Hough Transform, the authors calculate the number of beeline in difference matching image, at last they make the technique in the recognition experiments of 60 pieces final decision by the parameter. The performance of image, which gained from 6 kinds of objects, is also involved. The experiment result is satisfactory, which the correct-ratio of object recognition is above 85%.

10 Particle Sizing with Dynamic Light Scattering

GUO Yong-cai , WANG Yuan , GAO Chao , DENG Dong-mei

2006, 29(2):35-37119. DOI: 10.11835/j.issn.1000-582X.2006.02.010

[Abstract](1032) [HTML](0) [PDF 259.24 K](200)

Abstract:
The authors introduce the basic theory of dynamic light scattering(DLS).The basis components of experimental system are introduced,and the major things are the laser,PMT and digital correlation.They measure many particles that ranging between nanometer and micron.The factors are analyzed that influence the results,which are particles' dispersion and solubility,receiving area of PMT.They suppose some ways to obtain better result,and that is worth consulting for getting the correct result.

11 Design of Minitype Gas Dynamotor System Based on AVR

WANG Lin , LI Zhi-min , CHEN Zhi-yu , ZHANG Mei-qin , JI Jun-yi , HUANG Jun , LIN Yue-wei

2006, 29(2):38-40. DOI: 10.11835/j.issn.1000-582X.2006.02.011

[Abstract](658) [HTML](0) [PDF 191.02 K](188)

Abstract:
This paper introduces the software and hardware designs of minitype gas dynamotor system based on ATMEGA8L singlechip. Step motor is used as the executing equipment in the system. The maximum power of the dynamotor is 5 kW. First, the speed of the dynamotor is sampled, and then the signal is send to the ATMEGA8L singlechip, so as to drive the step motor, thus to control the accelerograph, and to control the frequency of the 9atput voltage, and the main arithmetic is the PID algorithm. The result shows that this technology can be used and extended in producion.

12 Calculation of Properties of Fracture for Magnesium Alloy AM50 and Experimental Certification

ZENG Xiang-guo , LI Jian-jun , ZHENG Heng-wei , LI Yuan , FAN Jing-hong , PENG Xiang-he

2006, 29(2):41-44. DOI: 10.11835/j.issn.1000-582X.2006.02.012

[Abstract](693) [HTML](0) [PDF 296.45 K](197)

Abstract:
The strain-stress curve and the stress intensity factor are carried out using the machine MTS for Magnesium alloy AM50.Energy release rates(G)are evaluated based on the virtual crack closure technique and Griffith potential energy.Based on the relationship between Energy release rate(G)and stress intensity factor(K).And then stress intensity factor(K) is got.Comparison of stress intensity factors(K) of between the calculated values and experimental values is made,showing that they are in good agreement.

13 Fuzzy Reliability Evaluation Algorithm for Medium Voltage Distribution Networks

WANG Jun-feng , ZHOU Jia-qi , XlE Kai-gui

2006, 29(2):45-49. DOI: 10.11835/j.issn.1000-582X.2006.02.013

[Abstract](865) [HTML](0) [PDF 327.97 K](267)

Abstract:
配电网可靠性评估中，元件的可靠性参数如：故障率、故障修复时间等具有明显的非精确性，这种非精确性很适合用模糊数来描述．基于同一论域模糊数问插值运算的思想，分析了论域在模糊数运算间中的变化及求解方法，提出不同论域问模糊数的四则运算算法．将模糊数引入中压配网可靠性评估，根据故障率和故障修复时间的特点建立了模糊可靠性评估模型，并引入去模糊技术，得出中压配电网可靠性的模糊评估算法．将该算法运用到RBTS—Bus2系统及工程算例系统，验证了算法的有效性和实用性．

14 Intelligent Extracting Method for Feature Mode of Electric Days Load

LI Ming-hao

2006, 29(2):50-53. DOI: 10.11835/j.issn.1000-582X.2006.02.014

[Abstract](702) [HTML](0) [PDF 307.41 K](162)

Abstract:
Generally there have a number of bad data in the electric load data and it affects the precision of load forecasting,so it is necessary for extracting the feature mode of days load data,then cleaning the load data before it is used to forecasting electric load or performing power system analysis.Inspired by soft clustering thought,a intelligent feature mode of days load data extracting method is proposed based on the mutual offset of fuzzy c-means clustering arithmetic and Kohonen self organization feature map neural network.With the merits of not only high extracting precision and convergent speed but also dynamic calculation capability,the method proposed can supply load forecasting or system analysis procedure with due data.Test results using actual data of Chengqu power supply bureau in Chongqing demonstrate the effectivity and feasibility of the method.

15 Influence of Steam Turbine System on Low Frequency Oscillation

MU Xiao-song , CHENG Tao , LIN Li , MU Dao-huai

2006, 29(2):54-56. DOI: 10.11835/j.issn.1000-582X.2006.02.015

[Abstract](673) [HTML](0) [PDF 172.14 K](924)

Abstract:
Low frequency oscillation of electric power system is a problem which electric workers always care about. The influences of prime mover characteristics were ignored in the past research. The paper introduces the models of steam turbine system and each part of electric power system, and calculates the corresponding eigenvalues, then analyzes the influences of steam turbine system on low frequency oscillation.

16 Optimization of Load Distribution for Industrial Boilers Running in Divided Period

HE Da-peng , PENG Lan , LI You-rong

2006, 29(2):57-59. DOI: 10.11835/j.issn.1000-582X.2006.02.016

[Abstract](736) [HTML](0) [PDF 198.77 K](1067)

Abstract:
A more practical and economic optimization mathematical model of load distribution for industrial boilers is presented. The optimum load rates of boilers are advanced by the method of static boiler model. The target function is built up, and in particular the restrictions are established. The theory of load assignment is checked through a project case. For various industrial boilers, once the definite characteristic functions of fuel consumption are given, the optimal load assigmnent can be obtained using this optimization model.

17 Power Plant Bid Decision-making Stragegy Based on Accounting Theory

HU Xiao-lei , HE Zu-wei

2006, 29(2):60-63. DOI: 10.11835/j.issn.1000-582X.2006.02.017

[Abstract](717) [HTML](0) [PDF 368.01 K](1010)

Abstract:
The main theortical basis that management accountant can be regarded as electricity-generating commerce is brought forward.The main contents of management accountant,such as cost analysis,quantity benefit analysis,estimate analysis,the decision analysis,the budget,cost control,responsibility center,the possibility of the indetermination analysis theories on generating electricity,feasibility and advantages,are analyzed and demonstrated in detail.Based on these works and combining knowledge of computer,related knowledge about power and the latest rules of electric power market,the functional design for the power plant biding for on-net assistant system is completed.The power plant bid decision-making stragegy includes following functions: receiving and declareing the data of the electric power market,protecting cost analysis,protecting price decision,predicting load,safe area analysis,superior distribution,settle accounts,sensitivity analysis,controlling plan management and risk analysis etc.

18 Effect of Heat Treatment on Nodular Corrosion of Zircaloy-4 Alloys

LI Yuan-rui , HU Chuan-kai , CHEN Lin

2006, 29(2):64-67. DOI: 10.11835/j.issn.1000-582X.2006.02.018

[Abstract](671) [HTML](0) [PDF 303.13 K](1029)

Abstract:
研究了不同热处理制度对Zr－4合金的耐疖状腐蚀性能的影响规律．实验结果表明：在高于该合金的α相区温度或α＋β双相区温度条件下，保温时间和冷却速度不变，提高加热温度，Zr-4合金的耐疖状腐蚀性能增强；加热温度和冷却速度不变，延长热处理保温时间，Zr-4合金的耐疖状腐蚀性能降低，疖斑增多；加热温度和保温时间不变，随着冷却速度的加快，Zr-4合金的耐疖状腐蚀性能增强，但冷却速度继续加快，该项性能增强并不明显，使冷却速度和耐疖状腐蚀性能的关系曲线上出现一个转折点．

19 Heat Transfer Simulation and Experiment of Highly Efficient Regenerator

WEN Liang-ying , BAI Chen-guang , CHEN Deng-fu , DONG Ling-yan , ZHANG Zheng-rong

2006, 29(2):68-71. DOI: 10.11835/j.issn.1000-582X.2006.02.019

[Abstract](667) [HTML](0) [PDF 265.99 K](1093)

Abstract:
On the base of regenerator configuration character, the heat transfer mathematics models are set up. The relevant relations of regenerator medium, exchange time, temperature efficiency and thermal efficiency are analyzed by numerical simulation. The results are anastomotic by numerical simulation and by experiments after exchanging 7 - 10 s. And it indicts reliability by simulation. The authors study effects of exhaust gas temperature and air preheat temperature influenced by regenerator medium, exchange time etc. , by numerical simulation and experiment. On the case, the suitable exchange time of corundum globule is about 60s, the suitabe exchange time of high aluminum and clay ceramic ball is 20 -30 s. Temperature efficiency is up more than 80%, thermal efficiency is up more than 70%.

20 Nonmetallic Inclusions in Continuous Casting Slab

LIU Lin-fei , LIU Shou-pin , ZHOU Shang-qi , REN Qin , LI Ding , KANG Ren-mu , WU Wen-dong

2006, 29(2):72-75. DOI: 10.11835/j.issn.1000-582X.2006.02.020

[Abstract](696) [HTML](0) [PDF 314.76 K](1136)

Abstract:
In order to improve the quality of the products and the pure degree of the steel; the type, quantity, size, composition and distribution of the nonmetallic inclusions present in continuous cast slabs made by Weiyuan Iron and Steel Co. , Ltd. are investigated with optic microscope, SEM, XES and Electroanalysis. Moreover the original of the inclusions is discussed. The result shows the inclusion in the continuous cast slab is mainly the spherical silicate inclusion which is smaller than 10 um. There is a small amount of polygonal inclusions, and there is the single-phase one and heterogeneous inclusion too; And the inclusions assemble in 1/3 position and in 1/4 at board base thickness and width direction. The inclusions are ineral, which origin from the deoxidizing process of molten steel.

21 Application of Transformation Among Heterogeneous Data Sources Based on the ASP. NET Technology

CHEN Jing , GAO Chuan , SHEN Jian-jun

2006, 29(2):76-78. DOI: 10.11835/j.issn.1000-582X.2006.02.021

[Abstract](743) [HTML](0) [PDF 243.18 K](1027)

Abstract:
The paper analyzes and utilizes the ASP.NET technology and puts forward a kind of model and method based on the ASP.NET technology,which realizes the transformation among heterogeneous data sources.The scheme has the following characterstics: B/S mode,being independent of and user's plat form,data distributed processing.Finally,it takes an example that converts non-DBMS data source into SQL data source which proves the method is feasible and(effective).

22 Mechanics. Model to Deformation of Covered Rock Strata and Its Application in Deep Mining of Steep or Inclined Seam

YIN Guang-zhi , WANG Deng-ke , ZHANG Wei-zhon

2006, 29(2):79-82. DOI: 10.11835/j.issn.1000-582X.2006.02.022

[Abstract](740) [HTML](0) [PDF 209.46 K](1085)

Abstract:
To meet the need of how to depict the deformation behavior of covered rock strata in deep mining or inclined seam, the authors study the law of the bend of rock layers in coal mining district. Based on the elastic theory, the deformation character of the rock layer is studied, mechanical model to deformation of covered rock strata is founded, and an expression of flexibility equation and a theoretic formula of calculating the most flexibility spot are derived under the hypothesis that rock treated as rock plate. By calculation, the flexibility of worked-out area in mine lower part is bigger than upper part. The point of maximal flexibility lies in middle leaning down worked-out area in mine part, which reflects really characteristic of deformation of roof in worked-out area about deep mining of steep or inclined seam. The model reflects factually the deformation of rock boards under the action of the united stress in essence. The obtained results can, be used to provide science warranty to the calculation of covered rock strata in deep mining of steep or inclined seam.

23 Adsorption and Seepage Characteristics of Coal to Methane under Electric Field

LIU Bao-xian~

2006, 29(2):83-85. DOI: 10.11835/j.issn.1000-582X.2006.02.023

[Abstract](778) [HTML](0) [PDF 206.34 K](1084)

Abstract:
It is generally acknowledged that geoelectricity is subsistent. It should be father studied that how geoelectricity affects stockpile and seepage of gas in coal seam and whether or not electric field can be used to speed the seepage of coal gas, thereby gas pumping rate of low pressure and low seepage coal seam. Adsorption and seepage characteristics of coal to methane under electric field have been studied. The effect of direct current electric field on adsorption characteristics of coal to methane rests with the competition of two factors which are the deep of adsorption potential well, is increased and coal temperature is raised by Joule heat effect. Adsorption ability of coal is increased when it is the leading factor that the deep of adsorption potential well is increased, but adsorption ability of coal is decreased when it is the leading factor that coal temperature is raised. Seepage ability of coal is increased under direct current electric field; Adsorption ability of coal is decreased and seepage ability of coal is increased under alternating electric field.

24 Solution on Configuration Factor from Ground to Sky

LI Bai-zhan , LUO Qin , YAO Run-ming

2006, 29(2):86-89. DOI: 10.11835/j.issn.1000-582X.2006.02.024

[Abstract](1133) [HTML](0) [PDF 323.43 K](1548)

Abstract:
Solution on configuration factor from ground to sky is introduced. The method is based on the converse analysis from sky to ground assuming that light sources are distributed in sky and each light source forms shadow. The ratio between lights sources that can be seen and total light sources is the configuration factor. The solution overcomes the complexity of building arrangement, height and form etc. , and can be used to solve the configuration factor in any complicated architectural complex. It has been proved valid through the example solution.

25 On the Comparison of Calculation Models of Scaffold for High-rise and Long-span Structrues

CAO Yong-hong , CAO Hui , YAN Wei

2006, 29(2):90-94. DOI: 10.11835/j.issn.1000-582X.2006.02.025

[Abstract](552) [HTML](0) [PDF 320.59 K](179)

Abstract:
In the construction of high-rise and long-span reinforced concrete structures, many safety accidents result from the defect of the analysis and erection of scaffold. To solve the problem, an accurate FEM model is adopted to analyze the scaffold and is compared with the common simplified models in practice. The comparison shows that the simplified models may do give unsafe results and so several suggestions for improvement are put forward.

26 Influence of Location and Form of HE-charges on the Air Blast Pressure Inside the Tunnel

LI Xiu-di , ZHENG Ying-ren , LI Li-sheng

2006, 29(2):95-98. DOI: 10.11835/j.issn.1000-582X.2006.02.026

[Abstract](860) [HTML](0) [PDF 264.73 K](185)

Abstract:
In order to understand clearly to the influence of location and form of HE-charges on the air blast pressure inside the tunnel, based on Hopkinson scaling law, attenuation of air blast peak pressures in long tunnels due to HE-detonations in the case of different location and form at the tunnel entrance is simulated with the dynamic finite element software of LS-DYNA. The results are compared with other experimental methods. The results indicate that the influence of location and form of HE-charges is significant near the HE-charges. As the distance from the HE-charges larger and larger, the influence of location of HE-charges is smaller and smaller, but the influence of form of HE-charges is larger and larger. The methods and data presented can be refereed in similar engineering and determination of loadings upon protective doors.

27 Experimental Technology on Dynamic Wind Loads on a Tall Building

ZHANG Liang-liang , WU Yun-fang , YU Yang , LI Zheng-lian

2006, 29(2):99-102. DOI: 10.11835/j.issn.1000-582X.2006.02.027

[Abstract](1031) [HTML](0) [PDF 304.02 K](228)

Abstract:
The wind load is a major load on tall buildings from side directions. It is of considerable necessity to building engineering that the static and dynamic wind load and the dynamic wind response can be achieved accurately. Therefore, the model of a tall building in Chongqing is made and tested in wind tunnel by using the high frequency balance used widely home and abroad at present. The characteristics of wind load are studied. This paper gives the coefficients of base force of the building produced by wind load in different wind directions, and offers reference for wind-resistant design of the building.

28 Study Progress of Controlled-delivery System on Vaccine

JIA Yun , LIU Huo-an , DAI Chuan-yun

2006, 29(2):103-106. DOI: 10.11835/j.issn.1000-582X.2006.02.028

[Abstract](741) [HTML](0) [PDF 401.43 K](202)

Abstract:
Study progresses of vaccines that are control-release are introduced in this paper. Study on vaccine of control- release dosage form and variety of development are summarized since 10 years home and abroad. These formulations are prepared by some macromolecule materials such as PLGA, PLA, PLG and PELA, which include microsphere, microcapsule, microemulsion, nanocapsule and nanosphere, used as carrier of delivery antigen and adjuvant. Microcapsulation technology, which biodegradative materials are used as capsule wall material can protect vaccine from being degraded and make it reach focus place, resulting in the optimal immunity responsion, so it is an effective way of developing control-release vaccine and has a well future.

29 Advances in Pharmacological Studies of Coptis Chinesis

YU Yuan-yuan , WANG Bo-chu , PENG Liang , WANG Jing-bo , ZENG Chen

2006, 29(2):107-111. DOI: 10.11835/j.issn.1000-582X.2006.02.029

[Abstract](2986) [HTML](0) [PDF 439.18 K](500)

Abstract:
A Coptis Chinesis is the dry rhizoma of ranunculaceous Coptis Chinesis Franch or Coptis deltoidea C. 7. Cheng et Hisao, or Coptis teeta Wall. It is the traditional Chinese herb, which is used in the contagious diseases. In recent years, its new pharmacological actions have been reported, which are antitumour, hypoglycemic response, immunoloregulation, improving the functions of cardiovascular. The important pharmacological functions of Coptis Chinesis are hypoglycemic response, improving the functions of cardiovascular, antitumour. With the deeply researching of Coptis Chinesis pharmacology, and the continuous founding of pharmacological mechanism, new preparation will be widely applied in the clinic.

30 Abateing mRNA Expression of RhoA in Cardiac Muscle and Improving Cardiac Remodeling by Simvastatin After Acute Myocardiac Infarction

YUAN Qiao-ying , QIN Shu

2006, 29(2):112-115. DOI: 10.11835/j.issn.1000-582X.2006.02.030

[Abstract](617) [HTML](0) [PDF 308.68 K](156)

Abstract:
探索了辛伐他汀改善急性心肌梗死后心室重塑和心脏功能的机制，制备心肌梗死模型，用辛伐他汀干预8周后，测定心脏重量指数、血流动力学、相应细胞因子发生变化．心肌梗死组（M组）较假手术组大鼠心脏重量指数升高、血流动力学恶化；心肌RhoA mRNA表达及AngⅡ含量升高，血液中H2O2含量升高，NOS活性下降，心肌及血液中SOD、CuZn—SOD活性下降；辛伐他汀干预组较M组上述指标呈相反改变，均达到统计学意义．辛伐他汀改善心梗后左室重塑心功能，可能与其抑制RhoA mRNA表迭、抑制AngⅡ及AngⅡ诱导的H2O2生成、改善NO生物利用度、提高抗氧化能力等多种生物机制有关．

31 Experimental Study of Multifunctional Acid to Deliquesce Stratum-jam

LIU Ju-mei , WANG Hong-tu , LIAO Jiu-ming , LI Wen-hua , LIU Yuan

2006, 29(2):120-123127. DOI: 10.11835/j.issn.1000-582X.2006.02.032

[Abstract](684) [HTML](0) [PDF 334.92 K](201)

Abstract:
Aiming at the oneness of acid to deliquesce stratum-jam applied in scene at the present time,which is incapable of deliquescing complex dirty simultaneously,this article confects a new multifunctional O/W acid.This acid is an emulsified mixture containing 15% hydrochloric acid as its extro-posture,high dissolved oil as its internal state under the function of some proper exterior active reagent.It is composed of 0.5%OP-10,0.5%Span80,0.2%Tween80,0.06%imidazole and 0.01%twelve-alcohol,and the content of oil is equal to the acid content.It can be indicated that this acid has good ability of resolving mineral(CaCO_3,MgCO_3) and organic compound(mainly colloidal bitumen) when it was poured into the stratum,so that it can deliquesce oleic stratum-jam,resume and improve the penetrability of stratum,boost the ability of liquid flowing up.

32 Study on the Deposition of Carbon Films in Molten Salt by Electrolytic Method

ZHANG Yong , FANG Liang , XlAO Feng , LIU Gao-bin , WANG Li-wen , WANG Wan-lu

2006, 29(2):124-127. DOI: 10.11835/j.issn.1000-582X.2006.02.033

[Abstract](769) [HTML](0) [PDF 316.88 K](180)

Abstract:
In present work,a new kind of electrolytic deposition method to make carbon atoms activated to obtain carbon film in molten salt was developed.An attempt of synthesizing carbon film on nickel substrate was first performed.It is found that carbonate ion concentration is one of the most important factors to obtain the carbon film.Pulse introducing in the electrolytic method and decreasing carbonate ion concentration reasonably are useful to get the carbon atoms activated,to accelerate the growth of deposition coating and to improve its quality.The experimental results on various(substrates) indicated that carbon film can be synthesized on the substrate of nickel,copper,iron and titanium by electrolytic deposition method in molten salt under suitable experimental conditions.

33 Galerkin Boundary Element Method for Plane Stationary Stokes Equation

XlANG Rui-yin , ZHU Jia-lin

2006, 29(2):128-131. DOI: 10.11835/j.issn.1000-582X.2006.02.034

[Abstract](980) [HTML](0) [PDF 214.10 K](165)

Abstract:
The boundary problem of plane stationary Stokes equation is changed into the variation equation which is equivalent to the boundary integral equations. With linear boundary elements, it is solved by Galerkin boundary element method. In computation of stiffness matrix, the exactly integral formula is used in the first integral expression. The numerical integral formula is used in the second integral expression. The authors deduce the analytical formula of the first integral in detail. The numerical experiments also prove this method is reliable and quickly. The error of Galerkin boundary method is tested with numerical experimentation.

34 Homogenization of a Class of Nonlinear Parabolic Equations of Second Order

LI Wei-yan , ZHANG Xing-you

2006, 29(2):132-136. DOI: 10.11835/j.issn.1000-582X.2006.02.035

[Abstract](673) [HTML](0) [PDF 219.51 K](909)

Abstract:
讨论一类非线性抛物方程э1uε-div（nε（x，Vuε））=fε的均匀化问题，其中aε（x，λ）是一列快速振荡单调算子且满足文中给出的一致椭圆非一致有界条件．在对这类可能奇异的抛物方程做均匀化时，主要困难来自条件中的｜｜βε｜｜L∞（Ω）→＋∞，即二阶算子的系数的上界随参数占ε→0而趋于＋∞．给出最优条件，再仔细结合补偿列紧方法、单调性方法来克服这个困难，得出均匀化结论．

35 Analysis on a Financing-model of Public Companies in Incomplete Market

CAO Guo-hua , RUAN

2006, 29(2):137-139. DOI: 10.11835/j.issn.1000-582X.2006.02.036

[Abstract](577) [HTML](0) [PDF 215.27 K](851)

Abstract:
It remains intrinsic defect how to explain reasonable financing behaviors in classical theory of capital structure. This paper gives a capital structure decision-making model with asymmetric information and exchange cost in incomplete market, and opens out mechanism of financing-selection base on adverse selection by Chinese public companies, in more we can explain well phenomena about equity over-financing of Chinese public companies.

36 Strategic Decision for Random Inventory System Based on Mente Carlo''''s Simulation Technology

LIU Chang-gui , DAN Bin

2006, 29(2):140-143147. DOI: 10.11835/j.issn.1000-582X.2006.02.037

[Abstract](665) [HTML](0) [PDF 320.82 K](1357)

Abstract:
Numerical simulation for random inventory system applying Mente Carlo's simulation technology is carried on,moreover system decision is made and optimal solution is arrived after research on relevant sensitive parameter.These results of research confirm that the way of making decision is practicable.Two important conclusions are proved by the data from an example inventory system.One of them is that optimal inventory strategic permit a restrictive short-of-stock policy in the case of paying for decrease because of short-of-stock;the other is that it embodies the ideas of zero-inventory technology and Just-In-Time(JIT).

37 Multilevel Fuzzy Theory Evaluation of the Tourism Resources in the Three Gorges Reservoir

HU Li , ZHANG Wei-guo , YE Xiao-su

2006, 29(2):144-147. DOI: 10.11835/j.issn.1000-582X.2006.02.038

[Abstract](592) [HTML](0) [PDF 256.73 K](1160)

Abstract:
Complexity of mutual act and different sensation of different tourists are important factors influencing regional tourism resources evaluation. Fuzzy mathematic method can be used to up quantitative evaluation method on tourism resources evaluation. Taking Wushan Small Three Gorges as an example, the author carries out the evaluation of the tourism resources in the Three Gorges Reservoir. At the same time, the authors consider that five factors, such as improvement of the comunication of tourism resources, quickening the Steps of urbanization in reservior area, must be done well.

38 Behaviour Risk of Applicant Measurement

LI Qian-chuan , REN Hong , WANG Bin

2006, 29(2):148-150. DOI: 10.11835/j.issn.1000-582X.2006.02.039

[Abstract](648) [HTML](0) [PDF 210.09 K](1013)

Abstract:
When deeisioner makes a decision rationally and legally, the other of the game will face behaviour risk. It is different from moral risk. When an applicant buy the insurance, he will reduce investment of prevention and become more risky. So insurer faces behaviour risk. By the analyse of behaviour risk, insurer can manage risk better and adjust the premium rate.

39 Choice of the Company Management Structure Models in the State-run Assets Reform

ZHAO Hua , WANG Xiao-yan , ZHOU Qing-long

2006, 29(2):151-154. DOI: 10.11835/j.issn.1000-582X.2006.02.040

[Abstract](564) [HTML](0) [PDF 295.83 K](915)

Abstract:
Based on the three levels of the company management structure,this paper points out that it is the focal point that every key element of the company's management structure is perfect.What's more,it is difficult point that the(duty) and authority of every key element of the company management structure are determined.Based on that,the(authors) put forward the division of authority and responsibility,and probed into three kinds of the administration modes in the state-run assets reform.

40 Safeguarding Capability Index System of Regional Sustainable Development

WU Ying , LIN Yong , CHAN Qi-bing

2006, 29(2):155-158. DOI: 10.11835/j.issn.1000-582X.2006.02.041

[Abstract](585) [HTML](0) [PDF 322.44 K](1147)

Abstract:
According to the new requirement of sustainable development in the new stage, this paper puts forward the definition of the safeguarding capacity of regional sustainable development and uses some statistical methods of frequency statistics and principal component analysis to construct the index system of safeguarding capacity. Then it takes the data of the Three Gorges reservoir area for example to make empirical analysis, and provides efficient measurement tools to further measure the regional sustainability together with its safeguarding capacity, and therefore helps the government and the relevant organizations to establish more scientific policies of sustainable development.

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