Advanced Materials Research Vols. 926-930

Abstract: The effect of electrolysis-enhanced micro-electrolysis fluidized bed technology on treating cooper-containing wastewater had been systematic researched. Operation conditions including applied flow rate, voltage, solution pH and reaction time on the copper ions (Cu2+) removal effect, had been studied scanning electron microscope (SEM) analysis had been used to characterize the surface features of copper crystals in the fillers surface. The results show that the Cu2+ mainly removed by electrochemical deposition, the optimum operation conditions are: flow rate is 22mm/s, voltage is 12V, initial pH=4, the response time of 30 min.

Abstract: Architectural outdoor wind environment simulation is an important part of green building certification. This paper is based on the natural climatic conditions of the Wuhan region, using RNG model of software of Airpak to simulate and evaluate the wind environment of Jiao Gong district in Wuhan University both in summer and winter. Through the simulation of outdoor comfort of the building environment and building monomer pressure distribution in the residential district, we find that the residential district meets standard of the national green building evaluation for outdoor walking comfort in winter and natural ventilation in summer. At the same time, this simulation can guide the local residential district planning and design program decision-making from the view of forming excellent wind environment.

Abstract: According to the calculation method of the IPCC, the paper calculates the composition and intensity of carbon emissions from transportation energy consumption in China from 2000 to 2011. Based on logarithmic mean divisia index (LMDI) decomposition technique, changes of carbon emissions quantity are analyzed by three factors which are the transportation energy intensity, the economic growth and the transportation energy structure. The results show: (1) Transportation energy intensity was significantly decreased. Under its influence carbon emission intensity from the transportation energy was decreased, indicating that the energy efficiency was improved continuously. (2) Transport carbon emissions were in a growing trend. The greatest influence factor was the economic growth which had a positive effect and enlarged transportation carbon emissions quantity. On the other hand, the factors of the transportation energy intensity had a negative effect. Except 2011, the transportation energy structure always had a negative effect, which reduced transportation carbon emissions quantity.

Abstract: Sand and gravel braided riverbed evolution was controlled by hydrodynamic condition, boundary condition, coming water and sand conditions and diversion ratio. These conditions caused the river regime evolution tend to be complex. This paper analyzes the evolution mechanism of meander branch channels in a case study of Lujiahe reach. The evolution trend was studied through a comprehensive analysis of the runoff and sediment change, sediment diameter change,transverse overbank flow change and diversion ratio change. Lujiahe regime would remain stable, but there will still be a slight adjustment erosion and deposition.

Abstract: The dynamic monitoring of detention basin land use/cover change and the comprehensive grasp of the detention basin land use structure and degree are of great significance to the scientific and rational use and development of the detention basin. The three periods of Landsat TM / ETM + data (1999, 2005,2010) of the LaoWangPo detention basin are used to analysis and calculate land use/cover change of the LaoWangPo detention basin from 1999 to 2010 , the single land use dynamic degree and the land use/cover change transition matrix, and to calculate the detention basin land use extent change indicators. Studies have shown that the LaoWangPo land use structure and strength have undergone a significant change during the 12 years, and are still in a development and change period.

Abstract: Buried hill reservoirs are typically found in Sudeerte oilfield in Hailaer basin. In this paper, the lithology, physical property and electric property of buried hill reservoirs are studied incorporating core data, mud logging, wireline logging and seismic attributes data. The major reservoir types of Budate buried hill are confirmed to include porosity, fracture, cavern and dissolved pore, which belong to dual porosity reservoirs. Vertically, the reservoirs get worse with the increase of buried depth and are controlled horizontally by weathering crust position and tectonic stress, and locations nearby fractured belt and structural high positions are preferable places for the formulation of good reservoirs. Oil and gas within the reservoir mainly accumulated inside fractures and pores and reservoirs with plenty existence of fractures and pores have good oil and gas shows and vice versa.

Abstract: After the water flooding sandstone oilfield entering the ultra-high water-cut developing phase, the remaining oil distribution has become increasingly fragmented, how to quantitative distinguish the remaining oil potential is the key to influence oilfield development, using multilevel fuzzy comprehensive evaluation mathematics method, comprehensive analyzed the classification reservoir’s producing conditions during the ultra-high water-cut developing phase, established a quantitative evaluation method from geological and develop factors, solved the problem of analyzing remaining oil in deferent kinds of reservoirs, realized the quantitative characterization of remaining oil in the ultra-high water-cut oilfield.

Abstract: Because of the defect in traditional BP network of cementing quality prediction at present which is sensitive with the initial weights, easy to fall into the local least value,low forecast precision and slow convergence speed occurred. In order to overcome the shortcomings of traditional BP network, the paper introduced the particle swarm optimization (PSO) algorithm based on the random global optimization into the neural network training. The PSO is used to optimize weights of BP network. The simulation results show that this method has shorter training time and higher prediction accuracy than the BP network, and it can improve cementing quality and realize prediction and tracking analysis of cementing quality. It has good serviceability for predicting all kinds of information not known in cementing. It has provided a new method for cementing quality prediction.

Abstract: In this paper, agricultural high-tech data for the 2010 to 2012 sample, I will use multiple regression to analysis the factors which affect agricultural high-tech debt financing. The empirical results show that: firm size, asset-liability ratio, revenue growth, asset value and debt financing secured a positive correlation, earnings per share, cash flow and debt financing debt ratio negatively correlated, while the quick ratio, net profit, inventory turnover rate of return on net assets and debt financing, have no significant correlation. Finally, based on the above analysis, I will propose some recommendations on the promotion of agricultural high debt financing policy.

Abstract: Swarm intelligence (SI) is a relatively novel field. It presents individual driven groups that can achieve the effect of cluster control. In this paper, practice teaching of Automation disciplines is taken as an engineering in which SI control principle is applied. SI principle is beneficial for education level of automation disciplines, and training qualified personnel for the community.