Advanced Materials Research Vols. 250-253

Abstract: Live-work is a significant form of mixed-use habitation in Southeast China. According to the investigation of spacial market settlement in Southeast China, this article follows and observes the local residents’ and employers’ behaviors and their space utilization. Based on spatial function and behavior track analysis , the mechanism of local work-live paradigms is illustrated in main chapters. After comprehensively analyzing the practical problems presented during the process of city market integration regional models in Yiwu, comparing the advantages and disadvantages, we are aiming at searching for a more rational regional plan In order to optimize the work-live patterns.

Abstract: A good many ideas, strategies, cases and technologies of green building were brought forth in Expo 2010 Shanghai on the theme of “Better City, Better Life”. This papers deals with the analyze of these cases, and study how to put the application of green technologies and strategies into the urbanism of China base on the situation of the country, It could be significative and necessary for China when we want to create a resource-conserving and environment-friendly society and realize sustainable development.

Abstract: Due to economical and serviceability reasons, local scour must be considered in the design of bridge piers. Although beds of natural rivers consist of nonuniform sediments, but most researches in this subject were carried out with uniform sediments. In nonuniform sediments case, the effect of sheltering of the finer particles by the coarser ones may alter the scour process. In this paper, the time-variation of local scour with nonuniform sediments around a cylinder pier is simulated using SSIIM software. This study shows that the SSIIM is capable of predicting the temporal evolution of local scour in bridge piers with nonuniform sediments.

Abstract: Due to the reversible transformation of physical property is strongly induced for ferro-fluid, so called intelligent working medium, subjected to the magnetic flux, its effective viscosity, especially, is closely dependent on the magnetization of ferro-particle and shows a special advantage in reducing the damping effect without magnetization hysteresis. Therefore magnetized fluid as a new engineering material, used for the shock absorber of building structure, has gradually attract scientist’s interest and engineer’s attention. Instead of previous experimental measuring the magnetized degree of ferro-fluid by costly Vibration Sample Magnetometer (VSM), a designed testing mechanism, based on modified Langevin function in apparent weight loss to characterize the magnetic behavior, is introduced in this study. It not only features as an stable, economical and affordable utility for local researchers, but a safe, easy operation with fast data acquisition would be also accessed. While compared with the experimental result conducted by VSM for ferro-sample provided by Matsumoto Co., the significant deviation using classic Langevin function in saturated magnetization M_d ,within the magnetic field, 0 ~ 6 mT, can be effectively lessened to 50 % as the calculation undergone by modified model proposed.

Abstract: Due to high maintenance and production costs of conventional asphalt pavements in recent years, substitution of concrete pavements has been taken into account. One important factor of such pavements is the long-term performance. The substitution of pozzolanic materials with existing cement in the mixture is a common choice to improve the durability factors and to increase the long term compressive strength. Owing to this change in cementitious materials, a general anticipation of the pozzolanic behavior to be observed is that the early age compressive strength gets decreased. On the other hand, this defect will be compensated in the long-term compressive strength. Furthermore, as conventional loads of road pavements are concerned, the tensile and flexural strengths have their own importance. Regarding these two factors, the related tests were also performed and the results were analyzed. The main purpose is to find the optimum material among these 2 types of pozzolanic supplements and its percentage of substitution with the preference of having the best average strength in both long and short term performances. Altogether, the natural pozzolan had better performance than limestone powder.

Abstract: The ship facilities didn’t be constructed in step with the construction of Dahua Terminal in Hongshui River of Guangxi province, while the argumentation didn’t be carried out when navigation lock was built out. In the condition above, when the navigation lock was completed, the navigation flow conditions in the entrance area of downstream and the linkage section was bad, so ships were difficult to enter the approach channel. The research of navigation flow conditions and nay navigation mechanism in the entrance area of downstream and the linkage section in current condition was implemented through physical model combining ship model. The method of using traditional navigation wall and navigation pier to improve flow conditions didn’t be adopted in renovation research. The new renovation idea of changing inflow conditions was used innovatively and bad flow pattern problem was solved by using deep pools terrain in the entrance area of downstream. After the implementation of the engineering, nay navigation problem was solved effectively and ships could pass the terminal successfully. This engineering provides a new way to solve similar terminal navigation problem.

Abstract: Body Heat Flux Mode characterised by Element Birth and Death method is built to simulate the thermal effect of target GH3536 irradiated by HIPIB with different energy parameters using the FEM (Finite Element Method) software. The thermal data of the metal surface irradiated by HIPIB is obtained. The simulated result has proved that the explosive eruption of the inner surface is the dominant mechanism of the formation of dense craters with large sizes when the ion current energy input is high.

Abstract: Based on boundary element method, a mathematical model of single box floating breakwater with mooring chain under regular wave is developed in time domain. From the comparison with the experimental data, the numerical program can simulate the transmission coefficient variaty tendency well, while on the aspect of the quantity, the numerical result is always larger than the experimental one, for the ignorance of the friction and dissipation energy.

Abstract: Based on analysising the influence factors of real estate investment decision, the paper establishes an evaluation index system of real estate investment decision, and applies integratively Group analytic hierarchy process(GAHP) and Fuzzy comprehensive evaluation(FCE) method to analysis the decision-making of real estate investment, to provide a more scientific quantitative basis for the decision-maker of real estate investment, so real estate investment decision has stronger scientificity.

Abstract: Based on the insufficient of indefinitely suppose on Project investment in general real option study, the paper studies Investment option evaluation problem of project, which has deadline requirements for Investing time. This paper is based on investment policy of real estate in China, and establishes a model, and the study give valid investment opportunities within time T, investors in which has investment flexible management of investment projects value evaluation.