TIAN Rui , Qin Da-tong , HU Ming-hui
2005, 28(7):1-4. DOI: 10.11835/j.issn.1000-582X.2005.07.001
Abstract:In order to increase using time of the batteries, and improve the hybrid electrical vehicles' economical and dynamic performance. By analyzing imbalance instances of the batteries, the battery characteristic mode of batteries imbalance dynamic performance is built, and the energy diffluent charge and discharge modes about controlling batteries imbalance degrees are put forward. Consequently, the energy diffluent charge and discharge controlling strategys of batteries imbalance degrees are advanced, and simulation calculation is processed, good-result is received.
LI Jian , Qin Da-tong , HAN Wei-jian
2005, 28(7):5-8. DOI: 10.11835/j.issn.1000-582X.2005.07.002
Abstract:Owing to increasingly strict emission regulation, gasoline properties not only satisfy the needs of high performance for the engine, but also attain the requirement of vehicles exhaust control. The gasoline from gas stations around China is sampled and its properties are analyzed. The distribution of gasoline quality in different zones is listed. At the same time, the difference of properties between domestic and oversea gasoline is compared. After establishing the emission model of the engine, the reference value of vehicle emissions in different zones is obtained. At last, some measurements are proposed to reduce the emissions: improving gasoline quality and controlling the related parameters for engine according to the distribution of gasoline properties.
2005, 28(7):9-11. DOI: 10.11835/j.issn.1000-582X.2005.07.003
Abstract:Variety Design not only support to short down development time, and cut down development cost, but also support to response marketing rapid, is a kind of modern design theory which apply on Mass Customization. In some way, Variety Design is a kind of design that integrates standard design and modular design, and Variety Design object is high cost and universal parts that among platform. The authors discuss the modular design role and the different between integral design, promote the method and the step of modular design, so change the low cost parts design, and give an new product based on the platform. Based on this model, they not only save the cost of develop new product, but also save time, achieve advantage which Mass produce process.
DENG Lei , WANG Xv , LIN Yun , HE Fang-zhen
2005, 28(7):12-14. DOI: 10.11835/j.issn.1000-582X.2005.07.004
Abstract:Based on analyzing factor of the effect of technology innovation in enterprise,the distinctive multiple technology innovation system is established. The computing method of index weight is discussed in the face of multiple objective decision making, and the authors construct the quantitative analysis model of multiple fuzzy evaluation through fuzzy transform. With the present situation of certain manufacturing enterprise, some suggestions are given in the end after quantitative analyzing.
WANG Qiao-lan , JI Zhong , QIN Shu-ren
2005, 28(7):15. DOI: 10.11835/j.issn.1000-582X.2005.07.005
Abstract:The article focuses on the method of noise cancellation for EEG signal. The method of notch filter is discussed. According to the frequency of noise and the principle of notch filter, the design result of the notch filter and the denoised signal are presented. Then, the analysis of EEG signal are proposed based on wavelet transform (WT) and noise cancellation using WT. Wavelet transform is a multi-resolution time-frequency analysis method. It can decompose mixed signal into signals at different frequency bands. The EEG signal is analyzed and denoised using WT, then the results are presented respectively. Comparing the experiment results shows that WT can detect and process noise in the EEG signal effectively.
KANG Li-yun , GONG Xian-sheng , Quan Wei , WANG Jian
2005, 28(7):18-22. DOI: 10.11835/j.issn.1000-582X.2005.07.006
Abstract:A new design method for the individual hip joint endoprostheses is proposed. By picking up the contour lines from the femur's CT images and making them closed and smoothed, a solid model of the femur is reconstructed using the contour lines by CAD software. An individual anatomical hip joint endoprosthesis is designed with the inner contour curves of the medulla cavity in CAD software. Utilizing the APDL(ANSYS Parametric Design Language) and the CT value per pixel in the CT image for developing a program through which every element of the bone can get its own material property. The finite element model's anisotropy and inhomogeneity of bone material are realized, then the endoprosthesis and the femur-stem contact finite element model can be built in ANSYS. Based on this, calculation on the contact model can be processed. It is feasible to checkout the rationality of the design by comparing the stress distribution in the femur with the situation before replacement. And the results reveal that the method is more reasonable and reliable.
HU Xian-hui , CHE Zhen-ping , WEI Biao , LI Kai-long , MI De-ling , Qin Lan
2005, 28(7):23-26. DOI: 10.11835/j.issn.1000-582X.2005.07.007
Abstract:In the design of x-ray spectrum detecting, adopting the PCI bus for transmission is an effective way to realize real-time and high-speed, and it has also a powerful ability for image transmission. The authors introduc PCI9030 with a slave interface device made by PLXtech corporation, and then they draw up in details the hardware and the acquisition software in the design of high-speed data acquisition card used in x-ray spectrum detection.
YANG Jing , GUO Yong-cai , GAO Chao , ZHANG Xu-dong
2005, 28(7):27-30. DOI: 10.11835/j.issn.1000-582X.2005.07.008
Abstract:The forward small-angle light scattering of the human's static and deformed erythrocytes in Couette flow is simulated by Monte Carlo method. It considers the light traveling along the cells in thin suspension, the values of length in all three axes and the deformation degree are worked out by anomalous diffraction. The result shows that the feasibility of this method is supported by its closeness to the standard data of model.
QING Shu-you , GAO Chao , HU Xue-dong , CAO Wei
2005, 28(7):31. DOI: 10.11835/j.issn.1000-582X.2005.07.009
Abstract:This paper introduces the portable data acquisition system based on MSP430F149 micro controller. In this system, PGA chip MCP6s28 is applied to reduce the quantity of devices and power dissipation of the system. Real-time transmission is implemented by the wireless data transceiver. Large memory capacity make it convenient for field operation. The system realizes the menu management by using the graphic LCD. It has the features of small size,low power dissipation, high conversion rate.Therefore,the system is suitable to use dry battery and work in confined space.
WANG You-yuan , LIAO Rui-jin , CHEN Wei-gen , DU Lin
2005, 28(7):34-37. DOI: 10.11835/j.issn.1000-582X.2005.07.010
Abstract:电力变压器是电力系统中的关键设备之一,变压器故障可能会造成长时间的供电中断.因此,尽早发现变压器故障具有重要的意义.介绍了能够在线监测变压器油中H2, CO, CH4, C2H4, C2H2, C2H6等6种气体在线监测装置的基本结构.根据油中各溶解气体的在线监测数据,采用灰色预测技术建立了灰色预测模型,并利用BPNN进行变压器的故障预测.该方法能够有效地预测未来时刻变压器油中溶解气体的浓度、诊断变压器在未来时刻的绝缘状况.现场运行结果表明,该方法能够满足工程实际的需要.
ZHONG Bo , ZHAO Yuan , ZHOU Jia-qi
2005, 28(7):38-42. DOI: 10.11835/j.issn.1000-582X.2005.07.011
Abstract:发输电组合系统可靠性评估中元件状态组合数和潮流计算是引起可靠性评估计算中"计算灾"的主要原因.利用粗糙集的数据约简和特征提取功能,提炼人工神经网络的输入变量、训练样本以及事件类与系统状态之间的概略化关系,建立偶发事件模式识别的粗神经网络(RNN)模型,提出基于RNN的发输电组合系统可靠性评估算法,以提高电力系统可靠性评估的计算效率.可靠性测试系统的计算结果表明,所提算法是正确、可行和有效的.
YU Chuan-xiang , Wang Quan-di , LIU Xiao-ming
2005, 28(7):43-46. DOI: 10.11835/j.issn.1000-582X.2005.07.012
Abstract:Because any type of image sensor has the inevitable question of nonuniformity which directly affect the quality of image and its using range, the paper discusses the principle and algorithm of multi-point nonuniformity correction and designs the scheme of nonuniformity correction based on Complex Programmable Logic Device (CPLD). The CL512J Self Scanned Photodiode Array(SSPA) image sensor is used in the nonuniformity realtime correction experiment. The result of experiment shows the correction system can reduce the nonuniformity of this image sensor from 40% to 2%.
LI Pan , YU Ji-hui , FU Zhi-hong
2005, 28(7):47-50. DOI: 10.11835/j.issn.1000-582X.2005.07.013
Abstract:This paper introduces the modeling of Unified Modeling Language with use case diagram and active diagram based on Rational Unified Process for Equipment Managemet Information System. It discusses the modeling mechanism and character of UML and develops the Computer Equipment management Information System Based Web using Rational Rose of UML CASE Tool. First, it is describe the authors how to analyze the structure of organize and build the model of structure organize. Second, they abstract the workflow of main operation in organize and build workflow model by active diagram. Finally, they abstract actor, use case with case diagram and finish the requirement model.
ZHANG Lin , ZHENG Zhong , GAO Xiao-qiang
2005, 28(7):51-54. DOI: 10.11835/j.issn.1000-582X.2005.07.014
Abstract:Hybrid genetic algorithms, which are based on steepest descent algorithm and genetic algorithm, are investigated for the purpose of multimodal optimization. The performances of the hybrid genetic algorithms are evaluated with criteria such as convergence probability, average convergence time and average convergence value of the function in the case of solving global optimization for Schaffer function. It is shown that the performances of the hybrid genetic algorithms are better than steepest decent algorithm or genetic algorithm, and the hybrid genetic algorithm, in which the individuals used for local optimization by steepest decent method are chosen by chance in each generation population, is more efficient than that in which the individuals used for local optimization by steepest descent method are selected from excellent individuals.
LI Ya , WEI Hong-bo , LI Wei , HUANG Xi-yue
2005, 28(7):55-58. DOI: 10.11835/j.issn.1000-582X.2005.07.015
Abstract:The problem on rocket safety control is important during the rocket launching proceeding, and is also the focus of every space country. The importance of rocket safety control is introduced, and the characteristics of the existing system are analyzed. Because of the special characteristics, the paper proposes an intelligent decision support system of rocket safety control, adopting the technique of artificial intelligent especially expert system. First, the authors introduce rocket safety control architecture and function. Then, a new method is proposed to represent the knowledge which is integrated with production rule and object-oriented technique. Furthermore, the reasoning is investigated, and decision-making network and uncertainty reasoning model are introduced.
HUANG Song , YANG Xiao-fan , PENG Qiu-ming , LI Si-jing
2005, 28(7):59-63. DOI: 10.11835/j.issn.1000-582X.2005.07.016
Abstract:Digital watermarking is an effective method to provide copyright protection for digital media. A blind image- adaptive watermarking algorithm based on DCT domain is presented. The algorithm selects adaptively the step size of quantization to embed the watermark bits by modifying DC components via the human visual system model and local characteristics of image; at the same time some AC components of the blocks with less perceptual capacity are also modified to embed the same watermark bits by using quantization. Thus the relation between robustness and imperceptibility can be well balanced. The algorithm recovers the watermark without any reference to the original image. Compared with the similar algorithm reported in the literature, this method can give better image quality and is better robust against noise and commonly used image processing techniques.
HE Wei , JIN Zhao-hu , ZHANG Ling
2005, 28(7):64-66. DOI: 10.11835/j.issn.1000-582X.2005.07.017
Abstract:An improvement method is given to detect small weak targets. It predicts the background gray and the actual gray of the current pixel molded by two predicting windows. The method can not only solve the edge blur problem of the traditional method, but fit for the detection of the bipolar targets. It can perform at a high calculation speed, which is an important improvement in the filed. In the process of real-time missile-tracking. The reliability and stability of detection require that the method cannot only solve the edge blur problem of the traditional method, but work well with the background no matter it is bright or dark. According to the experiment using the images provided by DX-1 missile-tracking project, the method is proved effective.
ZHANG Jian-xun , LIU Quan-li , Chen Zhuang
2005, 28(7):67. DOI: 10.11835/j.issn.1000-582X.2005.07.018
Abstract:Techniques of programmable vertex shader and pixel shader have been integrated in newly developed graphics hardware armed with powerful Graphics Processing Unit(GPU) in recent years, and as a result, real-time volume rendering can be implement. First, rendering pipeline, hardware architectures on per-pixel shading and fast rendering principium of the modern programmable GPU are explained in detail. Second,technology on how to analyze and solve volume rendering problems is described. Finally, maximum intensity projection (MIP) method rendering medical volume data have been implemented based on programmable Graphics Processing Unit. In a performance test, spent time rendering medical volume data based on programmable pixel shader in GPU is obviously less than spent time rendering it do without programmable pixel shader.
HUANG Qin , HE Dai-fang , GAN Si-yuan
2005, 28(7):71-73. DOI: 10.11835/j.issn.1000-582X.2005.07.019
Abstract:介绍一种用于自来水处理系统的溶液浓度--流量控制器的设计.该控制器以单片机为主控机,运用串级控制实现对大滞后、大时延对象的控制.在软件设计上运用模块化设计思想,采用C语言编制单片机应用程序.目前该控制器的各项性能指标经测试达到用户要求,并具有较强的现场适应能力.
2005, 28(7):74-77. DOI: 10.11835/j.issn.1000-582X.2005.07.020
Abstract:Intrusion detection system is an important component of the computer and information security framework. Its main goal is to differentiate between normal activities of the system and behaviors that can be classified as suspicious or intrusive, and its main challenge is to efficiently detect intrusion detection behaviors for reducing false positive rate and false negative rate. In view of the disadvantages of the existing intrusion detection methods, fuzzy c-means(FCM) clustering method is used to analyze intrusion detection data in order to detect anomaly network behavior patterns. Experimental results on the CUP99 data set data show that this method can not only feasible but also improve the accuracy and efficiency.
GUO Mao-yun , LI Nan , LI Shang-fu , Chai Yi
2005, 28(7):78-81. DOI: 10.11835/j.issn.1000-582X.2005.07.021
Abstract:Aiming at the difficulty optical cable-maintaining, this paper issues an intelligent diagnosis system based on GIS and expert system. To improve the optical cable-maintaining efficiency, the rules of the expert system are established according to the characteristic of the optical cable faults in the OTDR output. And the GIS is also established contained the information of the optical cable and the region the cable locates in.
SHI Wei-ren , ZHANG Xing , MA Zhen-hong , LIN Yin-hua
2005, 28(7):82-85. DOI: 10.11835/j.issn.1000-582X.2005.07.022
Abstract:The mono-layer BOM and multi-layer BOM trees are defined, and two of the basic algorithms of traversal of multilevel BOM are summarized as well,which are Recursive Search and Level Search. Based on the analysis of algorithms principles, and evaluating the calculating rate, percentage of using CPU and practicability of them, a kind of improved Traversal of multi-level BOM algorithms is proposed. It is applied in relational database with high calculating rate, lower percentage of using CPU and high applicability. The software implement of these algori-thms is also introduced in detail, and the results of its application show that these algorithms are feasible and effective.
LUO Gu-yuan , TANG Gang , JI Tie-jun , ZHANG Rui-xue
2005, 28(7):86-89. DOI: 10.11835/j.issn.1000-582X.2005.07.023
Abstract:Overall effects of HRT ( 11 h, 9 h, 8 h, 6 h ) on the Spiral up-flow reactor (SUFR) system are analyzed. The results of the operation under different HRT condition shows that the removal efficiencies of COD, TN and TP decreased not obviously with decreasing HRT when HRT is longer than 8h. Anaerobic retention time, anoxic retention time and aerobic retention time were 1.51 h,2.25 h and 4.24 h,respectively. The removal efficiencies of COD, TN and TP is kept over 93%,87% and 90.2%, respectively. Although the removal efficiencies changed obviously when the HRT was 6 h. Anaerobic retention time, anoxic retention time and aerobic retention time are 1.13 h,1.69 h and 3.18 h,respectively. COD-removal efficiency is always up to 85%, the removal efficiencies of TN and TP is kept over 76% and 72%,also has upper removal efficiencies. It is indicated that the SUFR system, which is similar to plug-flow-reactor, has strong stability and can compensate negative effects of increasing hydraulic loading.
XIONG Yi , GAO Xu , GUO Jin-song , FANG Fang , CAO Jia , SHU Wei-qun
2005, 28(7):90-92. DOI: 10.11835/j.issn.1000-582X.2005.07.024
Abstract:With GC/MS Approach, PAHs in raw water and effluent of six water purification plants in Three Gorges Reservoir Area are analyzed quantificationally. Six species of PAHs such as acenaphthene, phenanthrene, anthracene, pyrene, fluoranthene and acenaphthylene are determined. Of which, fluoranthene is priority pollutant firstly listed by SEPA. The results show that there are several variety of PAHs in raw water and effluent in water purification plants of Three Gorges Reservoir Area, but on the whole, PAHs concentration level is low. The results also show that PAHs removal capacity of conventional water treatment techniques is poor.
ZHONG Shu-sheng , WANG Zhang-hao , CAO Lin
2005, 28(7):93-97. DOI: 10.11835/j.issn.1000-582X.2005.07.025
Abstract:According to test results of two different angle specimens of local transfer RC joint from inclined column to Beeline-shaped short shear wall under vertical static loads and results of corresponding finite element analysis(ANSYS), fundamental behaviors of the joint are achieved for the change of the angle.The result indicates that there is much difference in the stress distributions of the transfer beam and short shear wall for different angles of inclined column, which shows that the larger angle, the more great tensile force and the earlier crack in the transfer beam and the lower capacity. Otherwise, the angle is smaller, the evener stress distributions in short shear wall, the later crack, the worse degenerate in the transfer beam and the higher capacity.Furthermore, the mechanical behaviors of the joint obviously followed the characteristics of a truss model.
PI Tian-xiang , CHEN Ming-zheng
2005, 28(7):98-101105. DOI: 10.11835/j.issn.1000-582X.2005.07.026
Abstract:According to the hypothesis of plain section and the equation of moment versus curvature of R.C section, the elastic-plastic response of pressed continuous beams is analyzed with CDC-method. The correlation equation of support reaction increment and displacement increment is induced through the relation of moment increment and curvature increment,and the adjustment value of support reaction increment of continuous beams is determined by solution of linear equation systems,which provides a rule the support reaction to follow. It can roundly and quantificationally display the moment redistribution behavior of continuous beams. A case of 4 spans continuous beam shows a high calculation rate and precision of this method.
KANG Ji-ming , XU Jiang , CHEN Ping
2005, 28(7):102-105. DOI: 10.11835/j.issn.1000-582X.2005.07.027
Abstract:With the problem of the city development, it becomes very important and urgent to research the utilization of the urban underground space. The authors discuss the interaction of high buildings and tunnel which belongs to a project at Dadukou region in Chongqing. The authors simulate this condition in computer and analyses the stress around the tunnel and find the rang of stress concentration. At last,the authors offer some references for underground-space opening of the tunnel under high buildings.
LUO Xiao-dong , HU Li-na , SUN Cai-xin , YAO Chen-guo , XIONG Lan , MI Yan , WANG SHI-bin
2005, 28(7):106-109. DOI: 10.11835/j.issn.1000-582X.2005.07.028
Abstract:采用细胞悬液注射法建立Wistar大鼠皮下瘤模型,研究能量可控陡脉冲(ECSP)对荷瘤大鼠免疫功能的影响.ECSP处理后利用MTT法检测各组大鼠脾淋巴细胞转化率及NK细胞活性,ELISA法检测大鼠腹腔巨噬细胞分泌TNF-α的表达.结果表明ECSP处理组肿瘤生长明显受到抑制;ECSP处理组淋巴细胞转化率、NK细胞活性及TNF-α的表达明显高于荷瘤对照组(P<0.05,P<0.05,P<0.05),且与正常对照组相似(P=0.953,P=0.130,P=0.080).ECSP可以抑制肿瘤生长,诱发机体抗癌免疫反应,改善和恢复荷瘤鼠淋巴细胞和巨噬细胞的免疫活性.
BI Yan-ping , LIU Liu-jun , DENG Xiao-yan , XU Zai-pin
2005, 28(7):110-114. DOI: 10.11835/j.issn.1000-582X.2005.07.029
Abstract:Vascular bypass grafting with autogenous vein is a frequent and important surgical procedure to cure vascular diseases and better promote blood supply in the clinical medicine. But the intimal hyperplasia(IH) has been one of the major cause of the graft late failure, especially for the middle and small artery. The pathology of IH is brief introduced. The Etiology of IH is discussed from the balance between proliferation and apoptosis, growth factor, hemodynamics and autologous vein itself. Prevention and cure of IH also are proposed.
LUO Qing , SONG Guan-bin , QIN Jian , Shen Xiao-dong
2005, 28(7):115-117121. DOI: 10.11835/j.issn.1000-582X.2005.07.030
Abstract:通过综述近几年来关于中药诱导肝癌细胞凋亡的文献,综合分析了人参皂甙、紫杉醇、氧化砷、苦参碱等多种抗肿瘤中药以及合剂对肝癌细胞凋亡的影响,认为中药诱导肝癌细胞凋亡主要是通过影响肝癌细胞周期,抑制癌发生相关基因的表达以及端粒酶活性来达到防癌和抗癌的目的.某些中药诱导肝癌细胞凋亡的途径有可能是偏向其中某一种,而某些中药诱导凋亡也很有可能是多种途径共同作用的结果.
WANG Mao-sheng , Lian Bin , LIANG Zong-qi , LIU Ai-ying
2005, 28(7):118-121. DOI: 10.11835/j.issn.1000-582X.2005.07.031
Abstract:鸡油菌(Cantharelles cibarius)是一种食药兼用的外生菌根真菌,多糖是鸡油菌的重要活性成分之一.报道了鸡油菌多糖提取工艺,作者采用正交实验设计法研究了提取温度、时间、固液比(加水倍数)及木瓜蛋白酶4个因素对提取率的影响,确定了最佳提取工艺为40 min、80 ℃和25倍水,在此条件下其多糖提取率可达12.58%.薄板层析结果显示,鸡油菌多糖主要由葡萄糖、甘露糖、核糖组成.
LUO Guang , ZENG Dai-min , ZHANG Yu
2005, 28(7):122-125. DOI: 10.11835/j.issn.1000-582X.2005.07.032
Abstract:According to scattering theory, the lowest order cross section between nucleons is calculated. Besides, based on the Great Moment Integral Limitation and the Complex Function Integral Method, the corrected cross section is obtained by treating the pion propagator with chain approximation. The experiment results show that perturbation theory can be used to deal with strong interaction.
2005, 28(7):126-128. DOI: 10.11835/j.issn.1000-582X.2005.07.033
Abstract:在张世清、周青等学者有关研究的基础上,证明了一类以六边形为基底、8-体双金字塔构型在任意给定质量比的前提下构成中心构型的存在惟一性;同时给出了该类构型能够构成中心构型的径高比(基底外接圆半径与半高的比)的取值范围为(3/3,1.099 600 679).
SHI Dong-ping , LONG Bing-wei , WU Zhang-han
2005, 28(7):129-132. DOI: 10.11835/j.issn.1000-582X.2005.07.034
Abstract:When light spreads in gravitational wave, its frequency is changed. Usually considering frequency gravitational shift, the rest mass of the photon is neglected. According to Proca equations of weight electromagnetic wave the authors investigate the Frequency shift of Proca light. The results of numerical estimation show that frequency shift of the photon has a small change when considering the rest mass of the photon and it is not detected at present experimental condition.
2005, 28(7):133-136. DOI: 10.11835/j.issn.1000-582X.2005.07.035
Abstract:The thesis studies the solution of Dirac equation in the non-static and spherically symmetric black hole, it change into the form of tortoise coordinate by employing the tortoise coordinate transformation. Then this changes into standard wavw equation near the event horizons and gwts Hawking radiation temperature of Dirac particles near the event horizons, which successfully obtains Hawking thermal spectrum formula. Such thermal spectrum is determined by black holes metric tensor hefts g/ 00 and g/ 01 .
ZHOU Zhuo-hua , LI Song , HU Li
2005, 28(7):137-139152. DOI: 10.11835/j.issn.1000-582X.2005.07.036
Abstract:The authors analyze the existing problems that those traditional firm valuation methods and Real Option Theory in corporate valuation in M&As face with, a new model based on real options method which makes full use of market information including price, cost and production is developed,which improves the real options method.
2005, 28(7):140-144. DOI: 10.11835/j.issn.1000-582X.2005.07.037
Abstract:Based on the samples of 171 listed companies in Shenzhen and Shanghai stock markets, the paper mainly focuses on the relation between the corporate ownership structure and corporate performance. The result shows that there are negative correlation between state ownership and corporate performance, and positive correlation between legal person ownership and corporate value, there are better corporate value in the higher centralized ownership company, and the corporate value will be improved when the biggest shareholder have proper shares.
HUA Yong-jun , CHEN Xun , ZHANG Jian
2005, 28(7):145-147. DOI: 10.11835/j.issn.1000-582X.2005.07.038
Abstract:The social evaluation theories of public project still have not been standardization today, and have effects on the process of the construction to city. One of the main reasons lays in that the index system, about the social evaluation theories of public project, connects with many fields, has many non-economic index and difficult in measuring the every index. This article is to mark off the main factors involved in social evaluation effectually, to set up index system of social evaluation practically, and to settle firm ground for methodology and theory of public project.
2005, 28(7):148-152. DOI: 10.11835/j.issn.1000-582X.2005.07.039
Abstract:With the development of market economy, customers become a vital factor of the enterprise's attention. Customer relationship management gives a very strong sustain between customer and enterprise. With the value analysis, the authors measure the customer current value, customer potential value, customer long value to let enterprise's decision-making easy. In the implement of CRM, enterprise should attach importance to customer-centered strategy, the key areas of value which customers focus on, the competence of environment and the feedback speed of market.
LI Qian-chuan , REN Hong , WANG Bin
2005, 28(7):153-156. DOI: 10.11835/j.issn.1000-582X.2005.07.040
Abstract:The theory of cognitive dissonance provides a new psychology way of investment decision.A decision-maker faces many dissonances when he makes a decision.Dissonance accompanies the pressure of dissonance reduction.The ways of dissonance reduction include changing a behavior cognitive element,a circumstance cognitive element or increasing new cognitive elements.