Advanced Materials Research Vols. 889-890

Abstract: We develop a model to investigate the use of linear programming to maximize return on investment of ecological restoration of coastal mud flat, in particular maximizing ecosystem service values, minimizing ecological restoration cost by optimizing development and ecological restoration of coastal mud flat. We show that such an optimal model was constructed to represent all ecosystem and ecological restoration services and given the return on optimal investment of ecological restoration for the coastal mud flat in Dafeng City, Jiangsu Province, China. Finally, the return on investment of ecological restoration, up to 256.4% in 1997, exhibits that there is a possibility of obtaining a decision support system from the optimal model and suggests that it is possible to improve decisions of restoration programs of the coastal mud flat by the return on investment of ecological restoration in which multiple service benefits can be maximized and ecological restoration cost can be minimized simultaneously.

Abstract: The temperature of the earth's land surface plays a very import ant role in the land-air interactions. It is critical parameters in the research of global change. Therefore, the use of satellite remote sensing data for surface temperature retrieval has become an important task of the study. Regional surface temperature is an important parameter of thermal energy distribution in the region, to obtain which is the most convenient and effective method. Thermal infrared remote sensing is an important area, and from thermal infrared remote sensing image information extracting temperature is a prerequisite for applying thermal infrared remote sensing technology .Based on remote sensing image data reading, radiometric calibration, regional cropping pretreatment; Then Landsat band 6 inversion of surface brightness temperature, It introduces the effect of the urban heat island using Landsat remote sensing ,having obtained the changes of spatial distribution of surface temperature, and prospects for future development in this field.

Abstract: The sensitivity analysis of wellbore heat transfer during the CO₂ injection process is of vital importance to Carbon dioxide utilization and sequestration (CCUS). A numerical simulation method is developed to simulate the process of wellbore heat transfer during injecting carbon dioxide by amending the classical heat transfer modelRamey models. It analyses how the selected parameters affect the distribution of the wellbore temperature and pressure, which include CO₂ injection temperature, pressure and density, the injection flow rate and Joule Thomson coefficient. The results show that, CO₂ injection temperature has greater impact on the initial level of the temperature distribution; higher injection pressure raises the temperature mainly because of the effect of Joule Thomson coefficient; also, when the injection process lasts a longer time, the distribution is much more stable. When the injection flow rate is higher, the strata temperature has less influence on the flow temperature. The injection pressure and density has very appreciable effect on the pressure distribution. However, the other parameters have less influence on it. The modified simulation method was applied in Jiangsu Caoshe oil field and the simulation results coincided with the measuring data well.

Abstract: This article explores a new method of constructing green campus based on the control of environmental factors. This method includes recognition, evaluation, control the environmental factors and monitoring the execution of control. Continuous improvement of the campus environment is the aim of the method. This article also introduces the application of method in Chongqing University of Arts and Sciences. Practice has proven that the method of constructing green campus can realize the pollution prevention and resource conservation; the teachers' and students' environmental consciousness and skill could be improved. Constructing green campus through control environment factors is practicable.

Abstract: Water temperature plays a crucial role in water ecological environment both in the reservoir and downstream area. Three Gorges Project (TGP) is the largest hydraulic engineering in the world, and changes of water quality attract much more attention, especially in the thermal structure since initial impoundment in 2003. In order to clearly understand water temperature distribution after the initial impoundment in the Three Gorges Reservoir (TGR), we monitored the temperature distribution of the Taipingxi section which was not far from the dam from early April to the end of July in 2004. According to the analyzing of the monitoring data of transverse and vertical temperature variation, we could find that when water level went up to 135m above sea level (a.s.l.) or 139m in the initial impoundment phase, the temperature mixed uniformly in transverse direction. Excepting April, there was basically had no temperature difference in vertical direction, even in April, the maximum temperature difference was only 1.39°C within 100 meters (April 22), the average temperature gradient was only 0.014°C/m; Both the temperature of water and atmosphere have similar variation tendency, but the response of the water temperature to atmosphere is delayed, especially the bottom water temperature. The result indicate that the reservoir displayed a mixed thermal structure during initial impoundment phase, therefore, the release had no change before and after impoundment, also had little influence on the aquatic organism and crops at downstream , the work provide a scientific basis for the development of pollution control and ecological protection measure.

Abstract: Songshan was inscribed in China's first batch of world Geoparks in 2004 with the approval of the UNESCO. And on the 34th World Heritage Conference in 2010, the Historic Monuments in The Centre of Heaven and Earth located in Songshan area was officially included in the World Heritage list. In response of these calls to preserve this world heritage which is rich in cultural resources and natural resources especially geological relics, the present paper offers a comprehensive yet integrated analysis from the world heritage perspective, based on RMP analysis and data obtained in the 2012 interview, with great emphasis laid on its market characteristics and tourism products. Such systematic analysis also provides solutions for the problems facing and even challenging tourism development and practical suggestions are also put forward for its sustainable development.

Abstract: We develop a week harvest model of Eichhornia crassipes where harvesters obtain information about harvest area once a week by using GPS data and satellite remote sensing images from growth experiment of Eichhornia crassipes. We show that a harvest amount of Eichhornia crassipes is positively correlated across growth rate and harvest strategy. This experiment was shown to lead to a determination of the model parameters with an overall Goodness of Fit Index of 0.9753 and a maximum sustainable area 14059 (square meter) once a week with total harvest area 154649. This indicates that there is a possibility of obtaining harvest area of Eichhornia crassipes once a week and suggests that it is possible to implement environmental phytoremediation with the harvest once a week at a maximum sustainable area.

Abstract: Higher Vocational Education in engineering mechanics specific issues to illustrate the application of engineering mechanics MATLAB language teaching. Engineering mechanics for complex calculations and mapping problem, using MATLAB software programming to solve, to stimulate students interest in learning, greatly improving the learning efficiency, enhance students' ability to solve engineering problems.

Abstract: Engineering ability training is the core problem in engineering colleges and universities. According to the teaching characteristics of mechanical engineering, this article based on the core course "mechanical engineering design" as an example, in the process of teaching, focused on the theme of cultivating students' ability of engineering practice and engineering quality, and conducted a preliminary exploration and practice on how to construct reasonable curriculum system and perfect teaching content using various teaching methods and means, strengthening the practice construction.

Abstract: Cultivation of innovation capabilities not only is the top priority in the training and education of graduate students, but also a fundamental objective of the teaching curriculum for graduate students. Based on the practice of graduate education and training as a starting point, and combined with the authors own teaching experience and understanding, this paper conducts a preliminary analysis and exploration on the ways and means of cultivation of innovation capabilities for graduate students.