Abstract:The main urban environmental and urban ecological problems existing in the sustainable development of Chongqing city were introduced in this paper. Furthermore, the causes and features of these problems were analyzed. At last, some countermeasures, which would provide some scientific bases for accelerating the urban sustainable development of Chongqing city, were suggested.

Abstract:In the past, the temperature was used as the sole quota to control the indoor thermal environment in hot summer and cold winter areas of China, but a major quota, the relative air moisture, was often ignored. In this paper, the effect of relative air moisture on indoor thermal environment is analyzed. The results show that the energy consumption can be reduced and comfortable thermal environment can be provided under natural condition by regulating the indoor moisture.

Abstract:On the basis of analyzing and summarizing the recent theoretical researches on constitutive models and failure criteria for brick masonry, a combination of a useful constitutive model with a reasonable failure criterion is used for describing the behavior of brick masonry under the loading in plane. A finite element program of nonlinear analysis is compiled. The predicted results are found to be in good agreement with Andreau's results.

Abstract:This paper presents an all-side study on one successful engineering project, the Chongqing Zhourong Plaza, twenty floors high with two air raids caves just cross under it. The study includes geological investigation, rock mass parameters choice, elastic-plastic rock mass failure criteria, calculation with finite element method, results analyses, conclusions on stability analyses and construction suggestions.

Abstract:The convergence and stability of Newmark method has been studied in this paper for the model with the negative stiffness. In the case of negative stiffness, the method is convergent and conditionally stable.

Abstract:This paper analyzes the tenet of quality control of steel structure engineering in main construction work and investigates the course and way of quality control.

Abstract:Based on the settlement-time relation, a forecast model of Poission curve is put forward and analyzed in point of its mechanism. Then, the model is applied to some projects. The results have shown the reasonableness of the model. At the end, the problem for further study is shown.

Abstract:This paper presents results of a research project "The prediction of the Fire Smoke Flow Properties in the Building", supported by the National Natural Science Fund. The numerical model of fire smoke flow in the building and its applied computer software are outlined. The experimental results obtained from full-scale fire test are compared with the results of numerical prediction using computer software.

Abstract:In this paper, the model experiment of laminated air conditioning in the powerhouse of Three-Gorges Hydropower Station was introduced. To assure the effect of air conditioning, the influence of different roof temperature, air supply velocity and Ar number on air distribution was analyzed and studied. Some conclusions have been drawn.

Abstract:The composition and heavy metals content of sludge, solid wastes and coke breeze is detected in the test. Sludge, solid wastes and coke breeze compost the organic composite fertilizer. The experiments on it for rice fertilization were conducted. The results show that the contents of organic matter and N, P, K in wastewater sludge and solid wastes of Guilin are very abundant and heavy metals remain under the criteria. There is a significant efficiency for the organic composite fertilizer applied in raising rice yield, providing an extensive applicability.

Abstract:变变化风速的送风口所产生的气流流型对外科手术室内的细菌浓度和人体舒适的影响进行了数值模拟分析。研究表明，与通常采用的均匀风速的送风口相比，变化风速的送风口对于降低手术室工作细菌浓度，防止病人手术切口及手术器械等回风气流携带的浮游细菌再次感染，以及减少手术室的送风量等方面具有明显的优点。

Abstract:使用 GDX-5 0 2大孔树脂对水中微量烷基苯类、硝基苯类、卤代苯类进行了同时富集 ,富集后的水样用两根极性不同的毛细管柱进行气相色谱双柱定性 ,外标法定量。本方法对十四种苯系物的总平均回收率为 85 % ,相对标准偏差在 5 %以下 ,最低检测限达 3.2 5× 1 0 -9g。结果表明 ,所建立的双毛细管柱定性定量分析苯系物方法 ,具有简便、灵敏、准确、线性范围宽的优点 ,适合于水中痕量苯系物的监测分析。

Abstract:In this paper, the fundamental formula of matrix function is discussed. The author puts forward a new method of solution of two-rank linear transient respond, using the fundamental formula of matrix function. The method can be spread and applied to solution process of high rank linear circuit transient respond and is superior to that of traditional solution.

Abstract:In this paper, a series of data on power consumption and the numbers of household appliance in a resident unit of a district, were analyzed by regression technique. A curve of the index on power consumption of a resident unit in a district has been gained. This curve was tested by another series of data obtained at the same time.

Abstract:In this paper, some problems such as circuit jam, mutual disturbance of signals, bad operation reliability and so on were analyzed, which resulted from the deficiency of integral electric and computer systems design and installation. It discusses mainly such problems as power supply, separation of alternating and direct currents, ground connection, undisturbed signal lines and so on. Then it puts forward a reference model for computer room's synthetical power distribution.

Abstract:According to the problems in planning, performing and coordinating of asset appraisal, this paper brings forward a concept of program controlling of asset appraisal. A research on the method of program controlling of asset appraisal based on the theory of system engineering with applying the technique of network planning was carried out.

Abstract:This paper discusses mainly how to use the method of systematic clustering to subdivide the markets of the real estates and choose target markets. Then a method for solving this problem was put forward.

Abstract:As the new century approaches, the problem of aging society is confronting us. The housing market for elders is becoming a constituent of the housing market in China. It is an indisputable way that credit and insurance play roles in the process of promoting the elder's housing consumption. This paper introduces a different kind of credit-inverse mortgage, suitable for elders, and explores its characteristics and three main forms. For weak abilities of elders to resist risks, this paper also explores some insurance forms that can help elder housing consumers.

Abstract:Through the detail analysis for the development of the housing property right and it's present situation, this paper points out the problems existed in the housing property right which will influence the development of Chinese housing industry. A constructive discussion on resolving these problems was made in this paper.

Abstract:In accordance with the special characteristics of state medium-sized construction enterprises and their reform objects of "having a free hand and enlivening", the suitable objective model, the stock cooperative system for state medium-sized construction enterprises has been put forward in this paper by analyzing the system mechanism of stock cooperative system enterprises. Then the causes for it were expounded.

Abstract:In this paper, the ways of simulating the window rolling technology in DOS environment were described. A general module, which is easy to be transplanted and useful for users, is presented.

Abstract:Based on the development of design of skyscrapers by foreign architects in Shanghai, this essay is offered as a brief introduction and an analysis of these designs and helps to study and absorb the advanced conception of foreign architecture design.

Abstract:The fundamental principle and mechanical behavior of several intelligent material systems, such as shape memory alloy, piezoelectricity and fiber optic sensor etc. are discussed in this paper. Some application to civil engineering structures and related research are introduced briefly. The existing problems in the application and research are also presented at the same time. The future development of the intelligent material systems and structures are prospected and some proposals are put forward.

Abstract:The structure characteristics of natural zeolite and its application in water treatment were discussed. Some suggestions were presented for further research.