Under Dissymmetrical Information the Game Theoretical Analysis about the Investment Financing Behavior of the Enterprises

The authors use the ideas and methods of the game theory to reveal that, under the condition of dissymmetrical information, it can't form an effective cooperative relationship among supervisor organization, the shareholders and the enterprises. In the capital market, we explain the cooperative conditions and determinants researched. Only through strengthening the force of punishment towards providing the false information and increasing the benefit received by providing the real information, the enthusiasm of the founders' providing the false information drops, and the necessity of the supervisor organization's checking decreases. Finally, we give some suggestions about the construction and consummating of the capital market of the enterprise.     

Application of Fuzzy Control in Direct Torque Control of an Induction Motor

The key of motor control is to control motor's torque essentially.Direct torque control,which emerged after the field-oriented control,directly stresses the instantaneous torque control of induction machine,which avoids some problems existing in field-oriented control,thus,it gets more attention.In conventional direct torque control system,switch vector is selected directly by the errors of stator flux-linkage and torque,after introducing fuzzy logic,optimal selecting switch state is realized by various strategies by distinguishing the grade of the errors of stator flux-linkage and torque,the dynamic and steady state performances of induction motors are improved.This paper presents a design method of the fuzzy controller.Simulation results demonstrate that it is effective,the stator currents pulsation at start-up and the torque pulsation are decreased.     

Analysis of Environmental Quality and Its Problems in Construction Engineering

The environmental quality problems of construction engineering are endangering the existence and sustainable development of human beings, so their treatment is becoming common understanding of all levels of governments and the public. In this paper, the forming course and affecting factors of environmental quality and main symptoms of its problems are analyzed from the definition of environmental quality in construction engineering. Then, the essence of the problem is revealed, that is comprehensive abilities for quality activities and their results can't meet the regulated requirements. Finally, it expounds five basic characteristics of the problems to enhance people's understanding.     

Ascertainment of the Cost of Construction Product in Construction Tendering and Bidding

The Tendering and Bidding Law" states that the bidder should not compete bidding through quoted price lower the cost, but it does not ascertain the meaning of the cost of building product. It is the purpose of this paper to ascertain the meaning of the building product cost. The calculation bases of both the social average product cost and of the enterprise individual product cost are analyzed and they are compared with each other. The authors point out that for some enterprise there is individual product cost lower the social average product cost. The function of design mechanism of bidding is revealing "private information" on "the lowest price". The purpose of carrying out bidding is introducing competition, reducing the cost for the owner and realizing the maximum yield. Both indicate the cost of building product, mentioned in "The Tendering and Bidding Law" should be the enterprise individual product cost.     

Advance in Study of Theory and Method for Analyzing Characteristics of Particle Group of Binding Material System

The characteristic parameters of particle group, new test method, the theory and method of model formation and the relationship between characteristics of particle group and its essential quality are introduced on the basis of analyzing the research method and theory for characteristics of particle group. The trend of this area is also prospected.     

A Numerical Study on the Damage Assessment of a Simply-supported Beam on Natural Frequencies

Based on the perturbation theory, it was proved that the ratio of changes of frequencies is the function of structural damage location. Taking a uniform cross-sectioned simply supported beam for example, the ratio of changes of frequencies between the damaged and intact beam was used to locate and qualify beam damage. For different extents of damage, the changes of frequencies and ratio of changes of frequencies were studied and the effects resulted from the omission of second order items were discussed. Finally, the deficiency of this method was pointed out.     

Method for Analyzing the Value of Stocks of Listed Real Estate Companies

The new listed real estate companies will greatly influence the real estate stocks in Shenzhen and Shanghai Stock Exchanges. Based on this special background, this paper established an operable model by comprehensively applying the Grey Theory, DEA Appraisement and its sequence arrangement method to compare various values of real estate stocks.     

Experimental Study of Soil Stress on the Holding Sheet of Pile-Anchor Holding-Block Structure System

This paper studies the soil stress on the holding sheet between the pile-anchor erecting columns of the pile-anchor holding block structure system often used in Chongqing. Based on the indoor model tests, this paper makes a qualitative analysis about the variation rules of the soil stress on the holding sheet. The results are compared with the calculation results on classical soil stress theory. Then, this paper suggests that the classical soil stress theory is unsuitable to calculating and analyzing the soil stress on the holding sheet.     

Measurement of Resistivity and Investigation of Electronic Transport for Carbon Nanotube Film

Temperature-depended resistivity of carbon nanotube film is measured and the results show negative temperature effect because the resistivity is decreased as the temperature increased. An electronic transport model for the carbon nanotube film is set up and the resistivity calculation formula is deduced, whose calculating result is compared with experimental datum. It shows that theoretical calculation is well contented with experiment results. Then, the relationship between resistivity and diameter of the carbon nanotube is discussed.     

Determination of an Optimum Scheme forBolting Unstable Rocks on a Rock Slope

Using basic principles of stereographic projection,block theory and rock mechanics,this paper tries to find a simple and easy method for determination of an optimum scheme for bolting unstable rocks on a rock slope in design of slope engineering.finally, examination and analysis is made of the completed project for bolting the unstable,high and steep rock slope on the campus of Chongqing University.