Volume 27,Issue 2,2004 Table of Contents

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  • 1  Performance and Slip Control of Torque Converter Lock-up Clutch
    HU Jian-jun QIN Da-tong JIANG Xiao-hua Chongqing China)
    2004, 27(2):1-5.
    [Abstract](1097) [HTML](0) [PDF 519.98 K](264)
    Abstract:
    The application of lock-up clutch slip control balances the fuel economy and drivability, and greatly improves the performance of hydraulic automatic transmission. The structure of the lock-up clutch and the friction material of lock-up clutch lining are discussed, a detailed research on varying characteristic due to engaging time during the lock-up clutch engagement is developed, too. By applying the slip control, lower fuel consumption is achieved.
    2  Research on Multifunctional Information-interactive Terminal Based on uClinux
    DONG Xiao~ DING Qing-sheng~ HUANG Zhong-quan~ ZHANG Gen-bao~ ZHANG Ying~
    2004, 27(2):6-8.
    [Abstract](742) [HTML](0) [PDF 291.94 K](209)
    Abstract:
    Based on the analysis of tendency of ICT (information interactive terminal), this paper presents a new embedded terminal which is multifunctional and understandable-MIIT (multifunctional information-interactive terminal based on uClinux) for the disadvantage of ICT, and expatiates the structure and illustration of hardware and software system of MIIT. The paper establishes the application system of MIIT containing the three parts: the collection of data on serial port, the given application program and keyboard, and it also ensures the realization of application system of MIIT and makes MIIT applied in new applications field.
    3  The Filtering Character of Hilbert-Huang Transform and Its Application
    TAN Shan-wen~ QIN Shu-ren~ TANG Bao-ping~
    2004, 27(2):9-12.
    [Abstract](1734) [HTML](0) [PDF 357.41 K](503)
    Abstract:
    Hilbert-Huang transform(HHT) is a new two-step time-frequency analytic method to analyze the nonlinear and non-stationary signal. The key step of this method is empirical mode decomposition(EMD) method with which any complicated data set can be decompose into a finite and often small number of intrinsic mode functions(IMF). Using Hilbert transform to those IMF components can yield instantaneous frequency, the final presentation of this results is a energy frequency-time distribution, designated as the Hilbert spectrum. Examples from the numerical results of signal de-noising are given to demonstrate the power of this new method, those results can clarity the advance and efficient of this method.
    4  Research in Automation Process Planning About Sheet Metal
    REN Guang-sheng~ FENG Hui-zong~
    2004, 27(2):13.
    [Abstract](760) [HTML](0) [PDF 355.85 K](262)
    Abstract:
    Along with the development and appliance of the artificial intelligence, professional have adopted many kinds of methods such as expert system, NN and so on to explore an innovation type CAPP. The paper gives a brief introduction to the principle and design methods of process planning based on the theory of expert system developing a computer aided process planning system of sheet metal and discusses in detail the system uses the network graph to describe the parts and technology decision-making route, and the methods of separated reasoning and various expressions of knowledge are used to solve the complexity of development in CAPP research. Finally satisfied the requirement of the practicability?opening and intelligence about the system.
    5  Embedded System and Its Typical Developing Pattern
    WAN Xiang-kui DING Jian-ping QIN Shu-ren
    2004, 27(2):16-19.
    [Abstract](965) [HTML](0) [PDF 391.29 K](280)
    Abstract:
    In the era of "post-PC", embedded system is regarded as a new representation. And its characteristics and developing technology are focused. The traits of embedded system, which are low power processor, compact operating system, prolifically peripheral interfaces and form, and its inner modularized framework are parsed. The typical developing pattern of embedded system is put forward,which is called Host-Target pattern . This pattern can make developers have clear design train of thoughts and divide the work, and also make the developing synchronously. And cross-compile and remote debug is the typical developing characteristics of Host-Target pattern. They are both discussed in this article. Finally we prospect the future of embedded system, and the network, system on chip (SOC) and lower cost of embedded systems are regard as its tendency by author.
    6  Finite Element Simulation of Inhomogeneity and Anisotropy of Proximal Femur
    LUO Cheng-gang GONG Xian-shengl Engineering Chongqing University Chongqing China)
    2004, 27(2):20-23.
    [Abstract](797) [HTML](0) [PDF 370.85 K](219)
    Abstract:
    To solve implant's looseness and subsidence, and to adapt for the requirement of custom-made hip endoprostheses' rapid automatic design and manufacture, a new method is presented for constituting the anisotropic and inhomogeneous model of proximal femur based on CT, CAD technology and finite element analysis during design of custom-made hip endoprostheses, Raw CT image data, 3-D modeling and finite element software is utilized to set up 3-D finite element model of proximal femur. The model is provided with anisotropy and inhomogeneity by self-developed specific software. The near true proximal femur model is structured and good biomechanics condition is provided for optimize design of custom-made hip endoprostheses. For simulating and analysing of proximal femur's structrue and material mechanics property, and determining stress ,strain and response after-operation under the action of physiological load more exactly, and supplying design of custom-made hip endoprostheses with data, the method can provide biomechanics condition for optimize design of custom-made hip prostheses.
    7  On the New Blade Shape of the Turodrill and Its CAD
    LIN Yuan-hua~
    2004, 27(2):24.
    [Abstract](684) [HTML](0) [PDF 434.45 K](1330)
    Abstract:
    Based on the research on the motion law of the drilling fluid along the blade, the necessary condition of the blade shape for a high efficiency turbodrill is obtained. Hence a mathematical model how to design a blade shape has been put forward, and the solution method of the model is obtained, which helps to design a high efficiency turbodrill. What's more, a 3 dimension model of the blade has been set up using Pro/E software, which can link with the advanced computer language by a interface routine and modify the 3-D blade model automatically. Based on the theory, a software has been compiled to design the blade automatically, which can improve the design efficiency and the design quality of the turbodrill.
    8  Decision Making for Vendor Selection With AHP and Random Disposal of DEA
    HUANG Shao-fu~ ZHAO Han~
    2004, 27(2):28-31.
    [Abstract](838) [HTML](0) [PDF 285.35 K](1498)
    Abstract:
    The vendor selection directly relatives to the procurement quality and influences the competition of the corporation in the supply chains. It is important and practical to study the vendor selection method. The measuring criteria and the method for vendor selection are analyzed. The authors put forward an new method which is combined with both the advantage of analytic hierarchy process (AHP ) and random disposal of data envelopment analysis ( DEA) for vendor selection. It introduces a random variable which solves the disadvantage of the weigh value in DEA which convert subjective estimation to objective opinion in the course of the vendor selecting. The method can improve the reliability of the vendor selection.
    9  Study on DAQ System by Using LabVIEW
    YANG Zhong-ren RAO Cheng ZOU Jian PENG Zhen-liane Ministry of Education Chongqing China)
    2004, 27(2):32-35.
    [Abstract](1043) [HTML](0) [PDF 385.10 K](2365)
    Abstract:
    Virtual instrumentation makes great progress in instrument developing. LabVIEW is a graphical programming language that uses icons instead of lines of text to create applications. It has been used widely to develop virtual instrument. This paper studies how to drive common DAQ system presents several methods to realize it, builds a shared library adapting to AC6010, and develops a low-cost and good-capability DAQ system.
    10  The Application of P80C552 Microcontroller in Microwave Remedial Instrument
    GU Xing-zhi ZOU Jian PAN Ying-junte Ministry of Education Chongqing University Chongqing China)
    2004, 27(2):36-39.
    [Abstract](574) [HTML](0) [PDF 356.25 K](1264)
    Abstract:
    This paper states the application of a microcontroller (P80C552) that has ADC internally using on the Microwave Remedial Instrument, briefly introduces the composing principle and function of the instrument, and further describes in detail the design of the system's software and hardware. At the same time, the paper describes some components of the Microwave Remedial Instrument, and the basic and the new functions of the microcontroller (P80C552). The intelligent automatic control system makes the instrument more stable and reliable via controlling the Microwave Remedial Instrument intelligently. The testing result shows that this design is realizable.
    11  Fine-structure Energy Levels and Radiative Lifetime in Ni-like Ions
    JIANG Ren-bin~
    2004, 27(2):40-43.
    [Abstract](928) [HTML](0) [PDF 341.75 K](1458)
    Abstract:
    The high-precision calculations of the structure and transition parameters for highly ionized and highly excited atoms are important in astrophysics, hot fusion experiment, distinguish of the beam-foil spectum and plasma diagnostics, particularly for the research on XUV lasers. Fine-structure levels, radiative lifetime and various transition parameters for all of the electric dipole(E1), magnetic dipole(M1), eletric quadrupole(E2) and magnetic quadrupole(M2) transitions among the 1772 fine-structure levels belong to the (1s~(2)2s~(2)2p~(6)3s~(2)3p~(6)) 3d~(10), 3d~(9)4l, 3d~(9)5l, 3d~(9)6l, 3d~(8)4s~(2), 3d~(8)4l4l' et al., and configurations of the Ni-like ions Mo XV have been calculated using the fully relativistic Multi-configuration Dirac-Fock method with the inclusion of the Breit interaction and QED corrections. The results are compared with those available in the literature, and the accuracy of the present data is assessed. Energy levels are expected to be accurate to within 0.38%. We have found some long-lived levels, which are called anomalous stability state.
    12  Rough Sets Theory and Its Application to Data Mining
    YIN Yong
    2004, 27(2):44.
    [Abstract](724) [HTML](0) [PDF 374.28 K](1850)
    Abstract:
    Rough sets is widely applied to dealing with the information under uncertainty. The data mining technology based on the rough sets is being increasingly attached importance by mathematicians and computer scientists. This paper introduces the development process and basic characteristics of rough sets, the application of rough sets theory to the data mining, and the typical system of the data mining based on the rough sets, as well as the directions and fields for future researches. Finally, this paper discusses the necessities through combining rough sets theory and intelligent methods to process information.
    13  Research and Design for Agent-Based Distributing Computation Structure of Local Government Financial Risk Budget Edit System
    SHI Wei-ren JIANG Chang-jiang PEN Shi-qiang KANG Jing
    2004, 27(2):47-50.
    [Abstract](636) [HTML](0) [PDF 329.87 K](999)
    Abstract:
    Keeping away and eliminating financial risk is one of the main tasks of every rank government. To solve the problem of local financial risk, a method that constructs a Multi-agent system to edit local financial risk budget is presented. Categorizing the owns of government that give rise to local financial risk, scheming four owns agents, scheming cooperative agent and some auxiliary agents to constitute the system are also proposed. Meanwhile, the agent-based distributing computation structure of the system is given, and the basic structure of agent and the cooperation mechanism of those agents are discussed.
    14  Comparisons Among Software Process Assessment and Improvement Models
    QIAO Mu ZENG Yi WU Hong-li YANG Xian-jun
    2004, 27(2):51-55.
    [Abstract](684) [HTML](0) [PDF 497.81 K](1320)
    Abstract:
    A discussion based on software process improvement models such as ISO/IEC 15504,CMM,CMMI and Chinese software engineering criterion: SJ/T 11234?SJ/T 11235 etc is presented. There are comparisons among these models and their advantages and disadvantages are showed. The aim of this paper is to help the software organizations to get in touch with the latest international software assessment and improvement models and select a model that suit them best. So that their software abilities can be improved and they can produce software products with high quality, high efficiency and low cost.
    15  The Application of Narrowband Interference Suppression in Direct Sequence Spread Spectrum
    ZHU Bing-lian XIE Wei
    2004, 27(2):56.
    [Abstract](845) [HTML](0) [PDF 323.31 K](1261)
    Abstract:
    In order to improve the system effect, it is necessary take the technique of digital signal process to suppress interference, because of the finite gain and the narrow-band interference in system of direct sequence spread spectrum. The authors design a new filter structure improving on tunable digital heterodyne adaptive notch filters. This filter can adaptively track the interference frequency and control the bandwidth and depth of notch, which has the excellent agility and utility. The experiment proves this method overcomes limitation of other interference suppressions, hardly weaken the system performances, enhances the stability of the filter system, and can quickly track the interference frequency.
    16  Determination of the Binding Constant Between Sodium Houttuyfonate and Human Serum Albumin by Capillary Electrophoresis
    LIAN Chun-xia~ GAN Ting-ting~ CHEN Hua~ YUAN Pei~ XIA Zhi-ning~
    2004, 27(2):59-62.
    [Abstract](617) [HTML](0) [PDF 144.12 K](1061)
    Abstract:
    采用毛细管电泳峰漂移法测定了鱼腥草素钠(SH)与人血清白蛋白(HSA)在碱性缓冲液条件下的结合常数.用3种求解结合常数的方法,即双倒数法、y-倒数法、x-倒数法,进行数据处理,求得的结合常数分别为4.072×104、3.845×104和3.791×104 L*mol-1.SH与HSA结合较强,结合比为1∶1 ,此结合参数为进一步研究SH在体内的运输、分布以及活性提供了重要信息.
    17  Review on the Preparation and Application of Carbon Membrane
    LIU Zuo-hua~ DU Jun~ LI Xiao-hong~ TAO Chang-yuan~ ZHOU Xiao-xia~ QING Sheng-lan~
    2004, 27(2):63-67.
    [Abstract](923) [HTML](0) [PDF 463.00 K](279)
    Abstract:
    Carbon membrane is a new type of functional inorganic separation membrane, possessing the merits of good processing and excellent physicochemical properties.Compared with traditional polymer membrane, carbon membrane has the advantage of excellent resistance to high temperature and immune to aggressive operation condition as well as good performance in anti-corrosion. To select cheap and easy available raw material and to prepare good performance carbon membrane for liquid or gas separation are the continuous research goal. Researchers are pursuing the carbon membrane possessing the high membrane flux and high selectivity simultaneously. To investigate and obtain carbon membrane catalysis reactor, carbon membrane biochemical reactor, integrated membrane process reactor and inorganic-organic composite membrane are the future direction in carbon membrane research and development.
    18  Fuzzy Submatroids
    LI Chuan-dong WU De-yin
    2004, 27(2):68-72.
    [Abstract](869) [HTML](0) [PDF 320.99 K](195)
    Abstract:
    The structure and properties of fuzzy matroids are investigated further. By generalizing the idea of fuzzy subgraph and fuzzy subspace to fuzzy matroid, some smaller fuzzy matroids are derived from a fuzzy matroid M in the different ways. Moreover, the properties of these new fuzzy matroids are studied, and the relationships among them are also presented.
    19  The Methods of Research Free Radical in the Domain of Biochemistry,Pharmacy and Dynamics
    HONG Quan WANG Yu WANG Li-jun ZHANG Sheng-tao
    2004, 27(2):73-78.
    [Abstract](737) [HTML](0) [PDF 622.44 K](536)
    Abstract:
    The researching of free radical is basilic researchful approach for free radical's chemistry, biochemistry and medical chemistry. Usually free radical has better activity and shorter half life, hence there have many methods for us to study free radical. In these methods, according to different apparatus, they can be seen as electron spin resonance, chemiluminescence, fluorescence, spectrophotometry, chromatography and radiolysis, etc. Because different apparatus has different detecting object, area and precision, each kind of methods has it's own specialty. Hence it is necessary for us to find and select a right way to study.
    20  To Use Virtual x Driver to Realize Interruption Serial Communication
    ZHANG Ping~ ZHANG Jian-ming~
    2004, 27(2):79-82.
    [Abstract](739) [HTML](0) [PDF 281.95 K](249)
    Abstract:
    How to develop Virtual x Driver(VxD) in windows system bottom layer is given to realize high efficiency interrupt communication of serial port. By analyzing Virtual x Driver, Programable Interrupt Controller, how to virtually a interruption is proposed. With the operational principle of UART chip 8250, the communication of serial port is analyzed. Finally, the communication between WIN32 application and VxD is discussed, and the constitute of the VxD is given. The applied solid example expresses that method of the serial port communication is efficient.
    21  The Natural Gas Reburning Low-NOx Technology and System Design for Industrial Demonstration
    ZOU He-gen~ LIU Han-zhou~ LU Xiao-feng~ WANG Da-jun~ GUO Tao~
    2004, 27(2):83.
    [Abstract](669) [HTML](0) [PDF 419.70 K](194)
    Abstract:
    介绍了天然气再燃低NOx技术基本原理,并且针对四川江油电#炉进行的国内首次"天然气再燃低NOx技术"工业试验的现场条件,依据冷态试验及FLUENT软件的模拟结果,对工业试验方案进行了优化与完善.工业试验的初步结果表明:在燃用劣质煤的切圆煤粉炉上采用前后墙布置天然气喷口及前后墙布置OFA喷口的天然气再燃低NOx技术方案是可行的,NOx排放量至少可减少40%.
    22  Two Channel Filter Banks and Wavelet Transform of Discrete Sequences
    LU Shan YANG Hao
    2004, 27(2):87-91.
    [Abstract](826) [HTML](0) [PDF 381.49 K](236)
    Abstract:
    Multirate filter banks and wavelet transform are closely related theoretically and practically. This paper researches the wavelet transform of discrete-time sequences basing on dendriform filer banks in the signal processing field, analyses the theory and design method of two channel conjugate quadrature mirror filter banks and fast implement of discrete orthogonal wavelet transform and generation of orthogonal wavelets, and points out the internal relationship between them.
    23  A Method for State Diagnosis of Grounding Grid
    LIU Yu-geng TENG Yong-xi CHEN Xian-lu YUAN Tao
    2004, 27(2):92-95.
    [Abstract](607) [HTML](0) [PDF 310.44 K](236)
    Abstract:
    This paper discuses the method with which the corrosion of the grounding grid can be diagnosed .A grounding grid can handled as a circuit network. With the application of circuit network graph theory and the fault diagnosis theory of analog circuit and optimization, the fault diagnosis equations can be set up. This equations is figured out by Matlab, and the corrosion status of the grounding grid can be deduced from the result.
    24  Experimental Study on the Scuffing Resistant of T302 As Additives in Lubricating Oils
    DENG Xiao-wei TONG Ming-wei
    2004, 27(2):96-98101.
    [Abstract](878) [HTML](0) [PDF 354.41 K](228)
    Abstract:
    通过对T302添加剂的润滑性能及抗胶合性能试验研究,发现T302添加剂能显著改善滑动摩擦副的抗胶合性能及润滑油的润滑性能,通过分析磨斑表面X射线衍射图谱(XPS),发现该种添加剂作用下,摩擦副表面形成了聚合物膜,使得摩擦力减小了,随着载荷的增大,添加剂在摩擦热产生高温作用下,部分原子如C、S同表面金属发生化学反应,生成了FeSO4 ,FeS 等物质.结合咬死失效后的表面形貌及咬死失效后滑动摩擦副表观特征分析,分析了该种添加剂作用下抗咬死性能提高的原因.
    25  Biocompatibility of Acellular Porcine Dermis
    SU Ai-hua WANG Yuan-liang TANG Li-ling PAN Jun LUO Yan-fengstry of Education College of Bioengineering Chongqing University Chongqing China)
    2004, 27(2):99-101.
    [Abstract](698) [HTML](0) [PDF 323.09 K](229)
    Abstract:
    In vitro cultured vascular endothelial cells (VEC) and mouse 3T3 fibroblasts (3T3) on the acellular dermal matrix , which were made of porcine skins. We made the cell proliferation test with MTT assay and the histological observation after cells were seeded on the acelluar dermis for 1 week with histological section. The cell growth curves showed VEC and 3T3 grew much rapidly on the acelluar dermis.The histological observation revealed VEC had formed a monolayer, some places even had formed 2 to 3 layer. The results suggest that the acelluar porcine dermal matrix have good biocompatibility , it will be widely applied.
    26  Effection of Physical and Chemical Factors on Appressorium Formation of Beauveria bassiana
    LI Wen-hua~
    2004, 27(2):102-106.
    [Abstract](633) [HTML](0) [PDF 578.55 K](204)
    Abstract:
    研究了2种营养液、3种化学诱导物、6种基物以及微生态条件对球孢白僵菌分生孢子萌发和附着胞形成的影响.结果表明:白僵菌分生孢子在0.01%YEM、1%1/4SDY培养基中附着胞形成率最高.在1×106 ~5×106 mL-1的孢子浓度下,接种4 mL 0.01%YEM,同时在(26±1) ℃、pH7.0、先黑暗后光照培养条件下最有利于附着胞形成.不饱和脂肪酸对附着胞的形成有诱导作用或抑制作用.基物的表面结构、疏水性以及硬度与附着胞的形成有关.
    27  Speed Estimation Methods Based on Neural Network
    LEI Hua WANG Ming-yu
    2004, 27(2):107-110.
    [Abstract](781) [HTML](0) [PDF 343.91 K](1391)
    Abstract:
    In order to solve the speed estimation problems of speed sensorless vector-controlled induction motor drives, the paper presents two speed estimation schemes based on neural network mode identification theory. The advantages of each scheme are discussed and the simulation results show that the estimated speed can trace the actual speed better (even under the circumstances of load variation or speed step variation). Also, these schemes are not sensitive to the variations of motor parameters and the effect of iron loss. Therefore, the proposed neural network based on speed sensorless vector-controlled induction motor drives have good performance in stady-state and transient-state operation.
    28  Study on Absorption Distribution of Rare Earth Elements in Crops With Rare Earth Fertilizer
    QI Jun-sheng~
    2004, 27(2):111-115.
    [Abstract](755) [HTML](0) [PDF 396.88 K](1089)
    Abstract:
    The absorption and content distribution of 5REs (La,Ce,Nd,Y and Gd) in 3species of crops (corn,paddy and soybean )have been studied. The results show that there exists the positive relationship between capability of rare earth elements being absorbed by crops and available rare earth elements in soil. Generally,content distribution of rare earth elements in crops are root >leaf >stem >fruit. Distribution of unitary rare earth elements in root is La>Ce>Nd>Y>Gd,and in leaf ,stem and fruit is Ce>La>Nd>Y>Gd. It is proved that light rare earth elements absorbed are easier than heavy rare earth elements. In addition ,capability of rare earth elements absorbed in crops growing is seedling >ramification >maturity . In a word,the data of pot experiment show that most of bioaccumulation in root . Thus, it is helpful to agricultural application of rare earths.
    29  A Numerical Method for Transmission Line Equations
    ZHANG Xi~ LIU Zong-hang~ SUN Tao~
    2004, 27(2):116-119131.
    [Abstract](948) [HTML](0) [PDF 336.76 K](1311)
    Abstract:
    Transient analysis of transmission line has recently been received more attention because operating speeds in high-speed digital electronics are increasing. Transmission line equations are hyperbolic partial differential equations, firstly this paper deduces how to change transmission line equations into quasilinear differential equations , thus the transmission line equation numerical result is gotten by computing the differential formation of quasilinear differential equations. The constraint of voltage and current is be considered and lumped equivalent circuit mode at boundary network collaborated at the same time in finding boundary conditions. Finally the paper computes transient response of transmission line with two typical boundary conditions. Numerical result shows that this approach is an effective way. It is explicit algorithm with less CPU consumption which can get time field response directly. The agree-upon effective way does be frequency field method, however it could not get time response unless the numerical inverse laplace transformation (NILT) be introduced. Thus this approach is more effective than FFT algorithm.
    30  Structure-activity Relationship of Flavonoids Antioxidants
    LIU Jie WANG Bo-chu PENG Liang ZHANG Guang-qiunistry of Education College of Bioengineering Chongqing University Chongqing China)
    2004, 27(2):120-124.
    [Abstract](1181) [HTML](0) [PDF 435.36 K](1483)
    Abstract:
    天然黄酮是广泛存在于自然界的酚类抗氧化剂之一,其抗氧化活性与清除自由基的能力密切相关.综述了几种研究抗氧化剂活性中常用的自由基检测方法与评价指标,并详细分析了结构因素影响黄酮类化合物抗氧化活性的机制与规律.认为黄酮类化合物的抗氧化活性主要取决于羟基的相对位置而非数目,具有色原酮结构的黄酮2-3位上不饱和双键也会在一定程度上增强其抗氧化活性,C环吸电子性质或羟基成甙则会使天然黄酮抗氧化能力降低,与金属离子的络合也是黄酮阻止自由基氧化的途径之一.对黄酮类抗氧化剂构-效关系的研究为筛选高效抗氧化剂和天然黄酮的结构修饰提供了理论依据.
    31  Environmental and Economic Analyses on the Changed Model of Water Circular Through Municipal Water Reusing
    DENG Rong-sen LI Qing CHEN De-qiang
    2004, 27(2):125-127139.
    [Abstract](568) [HTML](0) [PDF 333.61 K](1099)
    Abstract:
    城市污水回用是缓解我国水危机和促进水资源良性发展的重要途径,必须将其纳入整个城市用水系统.综合考虑了污染物、水量等因素,对污水回用改变水循环的环境经济效益进行分析.研究表明:在增加污水回用这一环节后,下水系统处理污染物增加;上水系统处理污染物、排放环境污染物减少;与之对应的费用也相应增减;对整个水循环系统污水回用的环境经济净效益为:C=θωW6 RQ[(W2-W允)k-(W5-W允)k] μQ中-αQ中β k3Qk2下(ηk41-ηk42),可以此作为对缺水地区用户制定罚款或补贴等激励机制的基础.
    32  Preparation Technology of Ultrafine Powder of Active Fly-ash
    FANG Rong-li YANG Yong-fu
    2004, 27(2):128-131.
    [Abstract](629) [HTML](0) [PDF 331.42 K](1205)
    Abstract:
    采用高温煅烧与控制C2S晶相转变来活化粉煤灰及制备粉煤灰超细粉体,用X射线衍射法对粉煤灰及活化粉煤灰的矿物组成进行了测定,结果显示:活化粉煤灰的主要矿物为硅酸二钙(C2S)和七铝十二钙(C12A7).研究结果显示影响硅酸二钙晶相转变的主要因素有钙硅比、煅烧温度、煅烧时间、样品冷却方式等,并给出了有利于硅酸二钙晶相转变的最佳参数.通过有效消除阻止C2S晶相转变的干扰因素,粉煤灰高温烧结料自粉化率可达到100%,自粉化料平均粒径小于1.0μm.
    33  The Monitor Measuring of Highway Tunnel in Natm
    DAI Gao-fei~
    2004, 27(2):132-135166.
    [Abstract](745) [HTML](0) [PDF 461.55 K](1791)
    Abstract:
    It is important that monitor measuring is applied in tunnel in regard to NATM. The monitor measuring of NATM was studied in the Fengmeiya Tunnel in Chongzun Express. Based on the regularity and conditions of the surrounding rock deformation of monitor measuring in site, the optimum time for primary and permanent support are obtained which averting successfully accidents in construction, enhancing the construction qualities and guidance to tunnel construction in Karst areas.
    34  The Allocation of Total Pollutants Discharge Control for Chongqing Region Three Gorges Area
    YUAN Hui WANG Li''''ao HU Gang CUI Zhi-qiang ZHAN Yan-hui
    2004, 27(2):136-139.
    [Abstract](657) [HTML](0) [PDF 301.18 K](1167)
    Abstract:
    2010年三峡重庆库区各区县的COD和NH3-N排放总量分别应为12.63万t/a和0.78万t/a,为了实现库区各个沿江城镇城区段的水环境控制目标,需要将总量分配到各个沿江区县.根据库区的实际情况,分别采用2种分配方法:根据排放量及污染带面积大小进行分配和等比例分配,对重庆库区2010年允许污染物排放总量进行了分配.并在此基础上提出了实现三峡重庆水污染控制和水环境目标的具体措施.
    35  The Evaluating Model of the BSC in the Audit of the Capacity of Sustainable Operation
    TANG Ya-li FEI Ai-hua LIU Xing
    2004, 27(2):140-144.
    [Abstract](862) [HTML](0) [PDF 450.78 K](1256)
    Abstract:
    With the increasingly economic competition in the World, the audit industry, numerous investors and the enterprises pay more and more attention on the audit of company's sustainable operation. In view of existing situation that the audit on the capacity of sustainable operation attach main importance to the finance of the audited company, in the result, it is difficult to recognize it completely. The model of the balanced scorecard is used, an indicator system that combine company's finance condition and non-finance condition is built in the sustainable operation audit. Basing on the way to process non-dimensional quantities of indicators, the audit use the analytic hierarchy process to determine the weights of the evaluating indicators and take the degree of gray incidence as the evaluation criteria.
    36  A Game Theory Model on the Information Screen Effect of Compose of Option and Probation Period Mechanism
    PU Yong-jian
    2004, 27(2):145-149.
    [Abstract](710) [HTML](0) [PDF 423.75 K](1295)
    Abstract:
    We have put forward a theory that the probation period mechanism have an information screening function when a company is inviting applications for job, which would be a supplement for the spence model. One of the merits of the model is that it could screen the informations of employee's capacity when there are fewer differences between the capacities of employees. This paper also has proved that option mechanism has a information screening effect and the compose of option and probation period mechanism could decrease the screen cost of a company. We have derived the mathematical Principles of probation period mechanism and the compose of option and probation period mechanism design in the paper.
    37  The Analysis of Impulse Response of Bank Landing to the Impact of Monetary Policy in China
    RAN Mao-sheng MO Gao-qi LIAO Ying-gao
    2004, 27(2):150-153.
    [Abstract](940) [HTML](0) [PDF 387.68 K](419)
    Abstract:
    Abundant researches approve that the bank-lending channel is the main monetary transmission channel in China recent years. But the most of investigations only focus on the behavior of the gross bank-lending index in the monetary transmission, and the further investigation hasn't been carried on. This paper divides the gross index of bank lending into the short-term and mid-, long-term loans based on the internal and external researches. It analyzes how the financial institutions adjust their lending policy under the impact of the monetary policy of the central bank and the effect of the adjustments on the macroeconomic, making the further study of the bank-lending channel in monetary transmission in China.
    38  Liquidity Risk Management of Mutual fund in China
    LIOU Bin~ DUAN Te-qi~ XU Teng~
    2004, 27(2):154-156.
    [Abstract](780) [HTML](0) [PDF 280.95 K](185)
    Abstract:
    The paper analyzes the dilemma of mutual fund's liquidity risk management, brings forward the liquidity reserve model and discusses the practicality of the model. On the basis of the model, the paper combines the current market environment of mutual fund's liquidity risk management in China and puts forward the relevant resolvent and some policy advice.
    39  The Mutual Effect Between Accumulation of Human Capital and the Growth of Firm''''s Revenues:An Empirical Study
    YUAN Kang-ping~
    2004, 27(2):157-160.
    [Abstract](429) [HTML](0) [PDF 376.11 K](178)
    Abstract:
    以技术服务型的建设监理企业为个案研究对象,利用回归方法和构造生产函数,对人力资本积累与企业收入增长之间的互动关系进行检验.结果表明专业化人力资本积累从量上对企业收入增长的作用是显著的,构造的生产函数表现为收益递增;"干中学"所产生的人力资本积累从质上对企业人均产出水平提高的作用也是显著的;能为监理企业和其他技术服务型企业的经营和发展问题提供一定的参考和实践的指导意义.
    40  The Analysis of Interrelations Between Regional Economic Growth and Savings
    HU Yong-ping ZHANG Zong-yi
    2004, 27(2):161-166.
    [Abstract](538) [HTML](0) [PDF 491.30 K](232)
    Abstract:
    The interrelations between the regional economic growth and savings are analyzed by using Johansen cointegration test and Granger causality test based on error correction model. The results show that the economic growing is one of the main factors that raise the amount of saving but don't increase the saving growth rate in all three regions. Also the increase of saving could result in the eastern and weatern region's economic growth to some extent, but it does't affect the central region's economic growth. Therefore, some actions which drive the economic growth have to be taken in order to raise the saving, and the increase of the saving scale have to be controled to improve the regional economic growth.

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