Applied Mechanics and Materials Vols. 641-642

Abstract: In the current, our country's urbanization process becomes faster and faster, The construction industry developing rapidly nowadays, The water-saving and energy-saving design is particularly important to architectural design. Although the building water supply and drainage industry has made significant progress, still there are many problems in the concrete implementation process. Therefore, in the process of water supply and drainage design, we should take corresponding solutions and countermeasures, in order to realize saving water and reducing waste.

Abstract: Many residents are superstitious so-called high-tech residential, see the technology will bring the thermal comfort, in fact, some high-tech residential only additional high-grade HVAC facility, the thermal comfort should not advocate in the northern Jiangsu area, after all, this is a high energy consumption of thermal comfort. In the north of Jiangsu Province, should promote low energy consumption of thermal comfort residential.

Abstract: Energy-saving buildings have been constructed based on the German energy-saving passive building codes in China these years. However, the energy-saving system of passive building may not suitable for the hot-in-summer and cold-in-winter district in China. In this regard, researches and applications of the external heat-preservation technique using building walls is presented. Furthermore, the comparison between the simulation of energy-saving and pertinent data from engineering application is also shown in this paper. The investigations reveal that it is not advisable to adopt the existing passive building for the hot-in-summer and cold-in-winter area in China based on the German energy-saving codes using external walls. The study suggests that heat transfer index of the energy-saving buildings needs more investigations according to different climate divisions.

Abstract: This paper expounds the importance of wall insulation energy-saving wall insulation materials, introduces the characteristics and process practice requirements. Bring forth the new through the old to accelerate energy-saving technical insulation wall material, plays a positive role in promoting to create a more comfortable living environment, provide the beneficial reference for the wall heat preservation and energy saving. Building energy saving is the main content of environmental protection and energy conservation, is an important part of sustainable development. Residential building energy-saving work unceasingly thorough, continuously improve the energy efficiency standards, the development of many new energy-saving technology, vigorously promote the use of residential buildings. But the current level of building energy saving, but also far lower than developed countries. So the building energy conservation is an important task of building industry. In the construction of the external retaining structure, the heat loss, the supporting structure of the external wall and a big share. Development and reform of building wall and wall energy saving technology is the main content of building energy-saving technology, the development of external insulation materials and energy-saving technology is the main way to achieve energy-saving building. Thermal insulation external wall energy saving is mainly divided into exterior insulation and exterior wall insulation two categories.

Abstract: An analytical model based on some solutions in the context of a two-layered fluid was developed to estimate the occurrence of northeasterly wind-driven coastal upwelling associated with “Aoshio” on the northeast shore of Tokyo Bay, and its validity was verified by comparing with observation data [1]. In this study, influences of all of the factors incorporated into this analytical model (including densities and thicknesses of the upper and lower layers, the parameter expressing the influences of interfacial friction and bottom friction) on the model are analyzed. The analytical model is found to express the competition between the wind-shear effect and the stratification effect: when the former dominates over the latter, Aoshio will occur on the northeast shore of the bay. The parameter that can be used to characterize the stratification effect can be simply expressed in terms of the product of density contrast and the square of thickness of the upper layer. Using different values of this parameter corresponding to different months in the model can simply estimate in which months it is easy for Aoshio phenomenon to happen on the northeast shore of the bay, and the result is roughly consistent with an observation phenomenon that Aoshio was frequently observed on the northeast shore of the bay in September and May and relatively less observed in June and July during 1978-2010.

Abstract: Whether the optimal wind direction for the occurrence of wind-driven coastal upwelling associated with "Aoshio" on the southeast shore of Tokyo Bay exists was not clear. In this study, Tokyo Bay was assumed to be a narrow, infinitely long channel with only the southeast shore and the northwest shore being its two boundaries, and the optimal wind direction for coastal upwelling associated with "Aoshio" on the southeast shore of this idealized channel was discussed. It is found that the optimal wind direction varies with wind duration. If wind duration is very short, the optimal wind direction is almost across the channel while, with the increasing wind duration, the optimal wind direction approaches gradually to be along-channel. This transition is attributed to the increasingly important role that played by the Coriolis force in the motion of the two-layered fluid with the increasing wind duration.

Abstract: This article, based on introducing the connotation and function of urban agriculture, analyzed the relationship between the development of urban agriculture and the construction of ecological city, and gave proposals and ideas for the development of urban agriculture. The development of urban agriculture is conducive to eco-city construction and also an inevitable choice of eco-city construction.

Abstract: In recent years, with the global climate issue and the contradiction between energy environment and economic development becoming increasingly prominent, Shenzhen International Low-carbon City, as the flagship project of China-EU Strategic Cooperation on Sustainable Urbanization, aims at exploring new ways to realize low-carbon development models, while low-carbon development policy is one of the key factors. This paper firstly introduces the background of the Shenzhen International Low-carbon City Project, then summarizes advanced experience and gives experience reference in low-carbon development policy of the developed regions worldwide, and finally puts forward relevant countermeasures and suggestions.

Abstract: Ecological footprint method was used to estimate the resident’s per capita resource consumption ecological footprint and per capita ecological carrying capacity of Changsha based the statistical data from 1996 to 2009. And the Changsha sustainable development issue was discussed. The results shown that during 1996 to 2009, Changsha per capita ecological footprint of biological resources consumption has a fluctuated upward trend. Ecological footprint per capita consumption of biological resources was dominated. There is a deficit of per capita ecological carrying capacity in Changsha; People activities impact on the regional ecosystem has exceeded the ecological carrying capacity, and it resulting in a greater pressure on the ecosystem. From the perspective of resources ecological carrying capacity, Changsha’s development model is not sustainable in 1996 to 2009. It should be transfer the mode of economic development, improve resource utilization efficiency, and promote the sustainable development of regional resources.

Abstract: Considering the history and current situation of Yancheng City, learn from foreign advanced design concepts, design the image of the city of Yancheng, Yancheng City and ultimately determine the "green Yancheng" as the city's intention, on the basis of the construction of Yancheng city should also move in this direction, because "water Yancheng" reflects the Yancheng born personality characteristics, comply with the philosophy of nature, not to blindly, in accordance with the construction of the city's own characteristics.