bluuebunny/crossref_metadata_2025 huggingface dataset:
Sorption of Ag+, Cu2+ on Thiol-Functionalized Poly (Acrylic Acid)/SiO2 Composite Nanofiber Membranes
Authors: Xu Ran , Jia Min , Li Feng Ting
Published: October 2011

Thiol-functionalized poly (acrylic acid)/SiO2(PAA/SiO2) composite nanofiber membranes have been fabricated by a sol-gel electrospinning method and their adsorption capacity for Ag+, Cu2+was investigated. Results showed the PAA/SiO2fibers had a diameter between 300 nm-700 nm. FTIR results demonstrated that the mercapto groups have been introduced into the silica skeleton. The adsorption of Ag+, Cu2+on the membranes fit the Redlich-Peterson isotherm model best. The equilibrium adsorption capacity of Ag+(575.64 mg/g) on PAA/SiO2nanofiber membranes is higher than Cu2+(331.52 mg/g). The desorption rate reached 98% in 30 min. The removal rate of Ag+, Cu2+still maintained above 75% after six regeneration cycles. Adsorption kinetics of Ag+, Cu2+followed a pseudo-second-order model.
Degradation of Persistent Organic Pollutants Mechanism Summary
Authors: Wang Ru Qin
Published: October 2011

Persistent organic pollutants (POPs) refers to the chemical structure stability, the toxicity, big,difficult biodegradation , there is a long time in nature,.to concentrate the detention easily in organism kind of organic chemistry pollutant.POPs has become the field of environmental chemistry and toxicology studies of ecological problems affecting human survival, it is the 21st century, a major health problem. Overview of the current domestic and international persistent organic pollutants on the degradation mechanism of the type. Presented on persistent organic pollutants to solve the problem.
Analysis for the Impact Factors of River Health
Authors: Yang Wen Hui
Published: October 2011

Determination of main impact factors of river health is important to river management, ecological rehabilitation and construction. Based on the definition of river health in China, the factors were divided into two categories, that is, endogenous factors and exogenous factors. The method used to main impact factor analysis was suggested which is based on the relation between the factors and the partial least squares regression. The model was applied to analyze main impact factors of river health of the lancun-Yitang reach in the middle Fenhe River. The result shows that the proposed model can reflect the actual situation.
Effects of the Different Organic Materials on the Structure and Elemental Composition of Humus in Black Soil
Authors: Li Jian Ming , Wu Jing Gui
Published: October 2011

Elemental Analyzers and Infrared Spectrometer was used to study the effects of the different organic materials on the structure and elemental composition of humus in black soil. The results showed as follow: Compared with control treatment (CK), application of organic materials decreased aliphatic compounds of humic acid(HA) and fulvic acid(FA), and the role of plant residues was the most obvious. In humin linked to clay (HMc), all the organic materials could increased aliphatic compounds, at the same time, decreased content of aryl-groups C＝C. After five years, used of organic materials decreased content of hydroxyl and saccharide in humin linked to iron(HMi), but increased aliphatic compounds. Compared with CK, after five years, application of organic materials resulted in significant decrease of C and H content, and the role of herb residues was the most obvious. Apart from animal excrement, others organic materials significantly increased N content of HA, and there was significant differences among different treatments. Application of herb residues increased N of FA. The order of C content was: animal remnant>animal excrement>CK>woody residues>herb residues, and no significant differences were observed for this parameter among different treatments. Use of organic materials resulted in significant decrease of C and H, but enhanced O content of HMi , and the role of herb residues was the most obvious, at the same time, herb residues decreased N of HMi. After application of animal excrement and woody residues，the C and N content of HMc were enhanced, and H content of HMc was decreased. Compared with CK, application of organic materials resulted in significant decrease of H content of HMc, and there was significant differences among different treatments.
Analyzing the Factors and Variables of Heat Island Effect in Comprehensive High-Rise Residential Quarter of Mountain City
Authors: Lu Jun , Li Chun Die , Wang Liang , Chen Yu Lu , Zhang Xin Hui
Published: October 2011

In order to guide the planning of urban microclimate, the influencing variables of the heat island intensity (UII) of tall residential quarter in mountain city in spring and summer is quantitatively analyzed. Through experiments and simulations, 6 variables including wind speed(WS), green ratio(GR), impervious ratio(IR), average surface temperature(AST) , shadow ratio(SR), H / W were chosen and summarized as factors by dimension reduction in factors analysis; further, the dominant variables and factors in different time were confirmed through multiple linear regression analysis of the factors/ variables and UII. Results revealed that in the microclimate tests, it is appropriate to make factor analysis when the cumulative contribution rate of a factor is higher than 50%, and the significant correlated factor of UII is horizontal surface factor (HSF) in three fifths of the testing time in July. The variable analysis revealed that the significance of WS on UII is more in cloudy days than that in sunny days; the significance of SR is higher in summer than that in transition seasons and is most in 15:00, it demonstrates that optimal utilization of the building shadings is an effective way to improve the outdoor thermal environment in residential quarters.
The Research on Abutment Stress Distribution and Fracture Characteristics of Coal Seam in Longwall Face
Authors: Li Chuan Ming
Published: October 2011

The abutment stress results from the load coming from overlying strata above the influence range of abutment stress and the load which coming from overlying strata above the stress shell passed by the shell. Through the mechanical calculation,this paper analyzed abutment stress distribution and fracture characteristics of coal seam resulted from the load of overlying strata passed by stress shell which exists in surrounding rock of working face, and obtained the laws of abutment stress distribution and fracture in coal seam in combination with numerical simulation and site testing. The characteristics of abutment stress distribution and fracture are related to the geometrical shape of the stress shell, such as height of the stress shell, horizontal distance between top of stress shell and coal wall,and width of stress shell skewback.
Study on Low Carbon Ideas in the Formation of Regional Landscapes: Ecology, Function and Culture
Authors: Zhang Jian , Sui Yan Hui , Zheng Yang , Geng Xue Biao
Published: October 2011

Global climate changes are threatening the survival of our species. Landscape architecture adaptive to climate change has become a hotspot. Many low-carbon ideas are involved in the process of formation of some regional landscape. This paper discussed the low-carbon ideas in some regional landscape from scientific landscape pattern, technology of using clean energy, usage of local materials, ecological design for construction and so on. These ideas are valuable to modern landscape architecture. In order to create new landscapes accordant with the spirit of the times, more attention should been paid to how to integrate ancient low-carbon ideas, new technology, local characteristics and function into modern landscape architecture.
Case Study on Reclaimed Water System Planning
Authors: Wu Shan , Hu Yue Heng , Yang Long
Published: October 2011

In order to improving the quality of water environment and increase water use efficiency, promoting and speeding up the reclaimed water facilities construction is a main measure in the northern cities with a shortage of renewable water in China. Urban reclaimed water planning is a strategic, special and comprehensive layout which involving a wide range of water management and development. Based on the analysis of the necessity of reclaimed water using and planning, the authors focused on the basic principles that reclaimed water planning should be followed and described the main elements that should be included in reclaimed water planning. As reclaimed water has played a significant role in Beijing’s existing water supply picture and its continued development is critical to meeting the growing water needs in the capital. With Beijing’s case studies a potential users selection principle of reclaimed water was presented.
Spatial Structure Evolvement of Coastal Tourism Region in Liaoning Province Based on the Growth Pole Theory
Authors: Tang Lei
Published: October 2011

The growth pole theory has a very important role in regional economic development. The theory was introduced to analyze spatial structure evolvement of coastal tourism region in Liaoning province which includes six cities: Dalian, Dandong, Panjin, Jinzhou, Yingkou and Huludao. And the tourism industry location quotient model was defined and was used to select the growth poles at city scale and tourist attractions scale of tourism industry based on relevant statistical data. The results showed that the cities of Dalian and Dandong can be treated as the first level growth poles at city scale, which the second level includes Huludao and Jinzhou, and the third level includes Panjin and Yingkou. And the growth poles at tourist attraction scale were established too. All the growth poles were incorporated with the coastal road to make up the pole-axis system, and then countermeasures were proposed for rational development of tourism industry of coastal tourism region in Liaoning Province.
Under New Rural Reconstruction Background, Korean National Minority Area Local Construction Development
Authors: Mo Wei , Wang Xiao Li
Published: October 2011

Presently, along with the new rural reconstruction work development, the Chinese majority of countryside area already started to take gradually the countryside cultural heritage protection, this has included the local construction “the alive culture”. The local construction took the China cultural heritage an important constituent, is containing the massive cultural information and the deep historical inside story. This article attempts through to elaborate the Korean National Minority area local construction distinctive quality, analyzes the near several dozens year changes and the development, and from the natural environment, angles and so on region shape and folk custom culture will come to the Korean National Minority area future the local construction to carry on some explorations.
Study on Layout Suitability of Rural Settlement at County Level Based on GIS — A Case Study of Pingyi
Authors: Zhao Mei , Nie Yi Min , Zhang Jian Hua , Wang Yang
Published: October 2011

The construction and development of rural is the basis of social harmony and stability. Suitability evaluation of Land is the early stage of land planning. At present, research on suitability evaluation in China is more focused on agricultural land and urban construction land than rural construction land. This paper take Pingyi County as an example, with the new round of land planning and site survey data, by using GIS spatial analysis function, carried out the layout suitability evaluation of rural settlement, offered solutions for solving the extensive land use problems in current construction of the rural settlement such as disordering,hollowing and “one household, multiple houses”, improving the “dirty, disordering and poor” phenomemon of village living environment, changing the lagging situation that all sorts of infrastructure and public facilities in the village, meanwhile provided a theoretical basis for the rural settlement planning in the new round of land planning and consolidation.
Non-Weighting Assessment Model: a New Tool for Sustainable Urban Landscape Planning
Authors: Deng Yi , Cai Ling , Gong Zhao Xian
Published: October 2011

The ecological sustainability assessment of urban landscape planning plays a critical role in sustainable urban development. In view of the shortcomings of the weighting-based ecological assessment systems, this paper establishes a basic assessment model based on non-weighting method. This is achieved by building core index of urban landscape ecological efficiency and introducing a unified measurement of ecological footprint. Afterwards, we discussed the application problems of the basic models, such as boundary conditions and index system, as well as the calculation of corresponding index, and so on. The present study also puts forward the main contents for further study, including the relevance between planning factors and ecological characteristics, planning schemes and their ecological significance, assessment procedures, and so on.
Research on Harbin West Old Industrial Area Reconstruction
Authors: Song Hai Hong , Zhang Ling Ling
Published: October 2011

This paper introduces the present situation of land use, industrial enterprises and transportation system in the Harbin west old industrial area and put forwards reconstruction strategies such as high-density development and use of land along the rail transit lines, reservation and utilization of industrial site resources, improvement of landscape ecological environment and construction of the rail transit system according to relevant theories.
Research Status and Development Trends of Hazardous Materials Transportation
Authors: Zou Zong Feng , Zhang Bao Quan
Published: October 2011

The related issues of hazardous materials transportation in recent years are summarized and reviewed from the following aspects: hazardous materials transportation risk evaluation models, road routing models, the application of related technology, early warning for emergency response and joint action mechanism and platform construction, the research situation and development pattern of unified monitoring platform, etc. Analysis shows that it is essential to establish more in-depth and scientific quantitative models based on the attainment of more comprehensive and continuous data as well as the consideration of various constraints. It is a direction for future research to develop comprehensive application of technology and to establish HAZMAT transportation joint control platform in large area, and the leading and facilitating role of government should be paid more attention on joint control platform construction in large area.
Expansion Research for Nanning Urban Space Development on the Basis of Ecological Network Building
Authors: Rao Huan Huan , Fu De Ren , Huang Yao Zhi
Published: October 2011

Rapid urbanization, Integration of urban and rural areas has brought many negative effects for ecology, living environment and sustainable development, Land for Construction-oriented system of traditional urban planning theory has been far from meeting the increasingly urgent needs of the ecological environment, The system has given the limitations of living environment for improving the performance of the urban landscape ecology, therefore, we need new concept to guide urban ecological environment construction. The article analyses natural environment and space expansion on the basis of existing problems, the article propose specific space expansion method in order to provide reference for city development and active interaction.
The Empirical Analysis of the Driving Factors of China Coal Demand
Authors: Wang Guang Fu
Published: October 2011

This paper tests the long-term equilibrium relations and short-term dynamic relations by applying Johansen co-integration test and VECM model among the coal demand, economic aggregate, economic structure, energy consumption efficiency, and urbanization level of china. It shows that there is a long-term equilibrium relation among above variables. Then the long-term elasticity of coal demand to other variables is given. It also shows, in the short run, the T time coal demand will affected by T-2 time economic aggregate, T-2 time urbanization level, T-1 time coal demand, and T-2 time coal demand. At last, the paper gives suggestions on how to control coal consumption in china.
Multiple Linear Regression Model Based Research on Relationship between Energy Consumption and Economic Growth
Authors: Liu Ke , Shen Xiao Liu , Ji Yi Mo
Published: October 2011

This paper selects energy consumption and annual GDP data of Beijing from the year of 1990 to 2009 as a sample, and adopted the research method of combining the quality and quantity, theory and empirical research, and we also employed the multiple linear regression model to analyze the effect of energy consumption to economic growth and the sensitivity of each effect factor. We wish this paper could provide a support to the future economic growth and policy optimization of energy and industry development of Beijing from theory to data.
Research on Energy Transportation Corridors Network Construction in China
Authors: Zhang Shi Xiang
Published: October 2011

The development of energy transportation corridor is a vital part of the national economy and social sustainable development. Energy transportation corridor construction and development present situation in China is analyzed in detailed. Several particular steps are planned for optimal designing energy transportation corridor networks in China. Various restricting factors lies in the key transportation corridors distribution and its reasonable operation mode are also pointed out.
Fuzzy Comprehensive Evaluation on Ability of Symbiotic Innovation in Sustainable Technology
Authors: Xu Zhi Jin , Song Yan Kui
Published: October 2011

The Ability of Symbiotic Innovation in Sustainable Technology (ASIST) plays an important role in the sustainable development. It is of great strategic significance for enterprises to evaluate this ability scientifically and rationally. How can we evaluate it in a scientific, rational, standardized and quantitative way? In this paper the author thinks that ASIST is an ability system of multifaceted and multileveled components, such as the abilities of symbiosis with economic, social, natural and scientific & technological resource environment. The evaluation of this ability is a problem of multifactor, multilevel and fuzzy comprehensive decision, so it is reasonable and effective to select and apply the method of Fuzzy Comprehensive Evaluation (FCE). After constructing an evaluation index system composed of 4 factors and 15 indexes, the author proposes and analyses preliminarily the general models and process to evaluate the ability using FCE. The models include the basic, multilevel and multioperator ones and the process composes of 5 main steps. He further illustrates the general solution of the fuzzy comprehensive evaluation of ASIST with a practical example, in the hope of realizing the evaluation to be scientific, rational, standardized and quantitative.
Particle Swarm Optimization Algorithm Based on Escape Boundary
Authors: Han Wen Hua
Published: October 2011

The particle swarm optimization (PSO) is a population-based stochastic evolutionary algorithm, noted for its capability of searching for the global optimum of complex problems. Particles flying out of the solution space will lead to invalid solutions. So often in engineering applications, boundary condition is used to confine the particles within the solution space. In this paper, a new boundary is proposed, which is called as escape boundary. The solution space is divided into three sections, that is, the inside，escape boundary and the outside of the boundary. The location of the global solution in the solution space, accordingly has two types, that is, the global optimum around the center of the solution space, and the global optimum close to the escape boundary. The proposed boundary is introduced into the PSO algorithm, and is compared to the damping boundary. The experimental results show that the PSO based on escape boundary has better search ability and faster convergence rate.
Analysis of the Gas Drainage Method of Roof Tunnel with Downward Borehole
Authors: Qin Ru Xiang , Shi Lei , Teng Li Ying
Published: October 2011

In order to know the function of downward boreholes and its gas drainage mechanism, gas content field in the goaf is simulated. The changing of gas content of roof tunnel gas drainage and roof tunnel with downward boreholes gas drainage is discussed. The results show that the range in 27m far away from coal face is the gas drainage short area of roof tunnel method, but the downward boreholes cover it. Downward boreholes like a barrier, which prevent gas from flowing to the upper corner in goaf. The gas content in area from coalface to 140m on the upper side of goaf is decreased by roof tunnel with downward boreholes, that reduces the value of gas content over limitation at upper corner. Furthermore, downward boreholes enlarge vertical fracture and realize gas to move to roof tunnel facility. Practical application reveals that the drainage gas is increased by roof tunnel with downward boreholes and gas content in the outlet tunnel is lowed. It is very important to realize high produce safety for gassy coalface.
Facile Remediation Method of Copper Sulfide by Nitrogen Pre-Treatment
Authors: Yap Pei Lay , Au Yoong Yow Loo , G. Kutty Muralithran , Timpe Olaf , Behrens Malte , Hamid Sharifah Bee Abdul
Published: October 2011

The deactivation and destabilization of copper sulfide when exposed to an oxidizing environment has led to the economical concerns as this sulfidic material can be easily destroyed by a series of oxidation processes. A promising and effective remediation technique in limiting the contact between covellite (CuS) and oxygen has been developed using a simple, hassle-free, non-corrosive, and eco-friendly pre-treatment of nitrogen approach. This remediation technique is remarkably effective as various techniques such as powder XRD, EDX, elemental mapping, and TGA-MS analyses have confirmed that covellite prepared with the pre-treatment of nitrogen does not oxidize to any mixed phase compound. Meanwhile, the study also shows that covellite stored without the pre-treatment of nitrogen has transformed to a mixed phase of pentahydrate copper sulfate and covellite. Hence, this method can be practically exercised not only on covellite, but possibly on other metal sulfides which are prone to be attacked by oxygen and water molecules in oxidizing environment.
Finite Element Analysis of Asphalt Overlays on Existing PCC Pavement under Heavy Traffic Loading
Authors: Shen Jun Min , Zhou Yu Min , Zhang Xiao
Published: October 2011

This study models the thermal stresses and load stresses of Xia-Feng expressway asphalt overly on an existing PCC pavement by using finite element method. The sensitiveness of different influence factors on thermal stresses and load stresses are discussed. Research results show that asphalt overlay deflection and load stresses increase with the decreasing of weakening of subgrade strength index λk and when a soft interlayer with low level of spring stiffness is adopted, the thermal stress of asphalt overlay is quite small compared with load stresses.
Review of Theory and Practice on Natural Gas Hydrate
Authors: Huang Bing Xiang , Xue Wei Chao , Wang You Zhuang , Zhang Tong
Published: October 2011

Research on Natural Gas Hydrate（NGH）is very popular in recent years. NGH is a potential, new and clean energy with the characteristics of high energy density, high combustion heat, high proven reserves, no pollution, wide distribution and shallow burial and so on. It has been identified that NGH is widely distributed in the plateau, arctic permafrost and some eligible areas in the seabed of epicontinental and continental slope all around the world. According to the research data on NGH at home and abroad, the mineralizing, formation, distribution and exploration technology of NGH are introduced as well as the NGH research status of countries in the world, including China. Many theories and techniques about the exploitation of NGH are not mature yet. Numerous problems still exist in industrial mining NGH, such as environmental, geological problems induced by mining NGH and storage and transportation problems after mining. Finally, the application and mining prospects of NGH are and prospected and summarized to provide a relatively comprehensive reference to this research field.
Research on Power Equipment Bidding Evaluation Combining the Entropy-Weight Method and the ELECTRE Method
Authors: Shan Hong Sheng
Published: October 2011

Bidding evaluation is an important aspect in equipment procurement, and there are still some problems with the current bidding evaluation method being used. This paper presents a bidding evaluation method which combines the entropy-weight method and the ELECTRE method to create a new bidding evaluation model. Finally, the application of this bidding evaluation method in power equipment purchase is illustrated by using thermal power auxiliary equipment bidding procurement as an example.
Hybrid Strategy for Product Quality Credit Evaluation Based on Statistics and Artificial Neural Network
Authors: Liu Li Mei , Qian Heng , Gao Yong Chao , Wang Ding
Published: October 2011

In China, quality credit is an important part of the social credit system, and evaluation of quality credit is the key to the construction of quality credit system. In this paper, on the basis of product quality credit factor analysis and evaluation index construction, a hybrid strategy of three stages is proposed according to the different nature of indicators. The emphasis is put on intelligent evaluation model based on statistics and artificial neural network. According to the results of experimental verification, this credit evaluation method shows a high accuracy for the evaluation of quality credit.
Optimum Utilisation of Rolling Stocks for Iron Ore Mining Industries
Authors: Liu Shi Qiang , Kozan Erhan
Published: October 2011

In this paper, a generic and flexible optimisation methodology is developed to represent, model, solve and analyse the iron ore supply chain system by integrating of iron ore shipment, stockpiles and railing within a whole system. As a result, an integrated train-stockpile-ship timetable is created and optimised for improving efficiency of overall supply chain system. The proposed methodology provides better decision making on how to significantly improve rolling stock utilisation with the best cost-effectiveness ratio. Based on extensive computational experiments and analysis, insightful and quantitative advices are suggested for iron ore mine industry practitioners. The proposed methodology contributes to the sustainability of the environment by reducing pollution due to better utilisation of transportation resources and fuel.
Modeling and Solving Problems of Heat Transfer of Cement Clinker
Authors: Wen Yan , Li Na , Liu Bin
Published: October 2011

Based on the analysis of heat transfer characteristics of the cement clinker, the porous media’s seepage heat transfer theory is introduced into researching of clinker heat transfer according to its porous media characteristics, and then the control model of cement clinker is built up. Furthermore, this project solves the model by using the finite difference method. At last, the inherent heat transfer law of cement clinker is obtained through simulation.
Application of Fuzzy Maths in Urban Water Resources Value: A Case Study of Water Resources Value in ChengDu Region
Authors: Cai Chen , Huang Tao , Li Xun , Li Yun Zhen
Published: October 2011

urban water resources value is a very complex system, it is composed of three main elements; nature, economy and society. In this paper, taken a city as an example, selecting water quality, water resources amount, density of population and national income as the evaluating elements, by useing fuzzy comprehensive evaluation method, the value of water resoueces of this city has been carried out. The results shows that water resources prices in this city is much higher than the present average water price. Therefore, it is necessary for the government to take mearsures to raise water use efficiency, strengthen environmemtal protection, so as to raise water resources value.
Formation and Evolution of Cu Nanostructures on the Surface of Nanosized Cu Films under High Vacuum Annealing
Authors: Su Jiang Bin , Li Lun Xiong , Zhu Xian Fang
Published: October 2011

Nanosized Cu films were prepared by direct current (dc) magnetron sputtering method at room temperature. The as-deposited Cu films were subsequently annealed under high vacuum annealing for different time. It was observed that with the annealing various types of Cu nanostructures formed on the surface of films. It was also observed that the appropriate range of film thickness for such formation was from 20 nm to 40 nm. During the annealing, three types of nanoparticles and considerable number of even tiny crystallites forming on the film surface were crucial for the formation. Furthermore, the detailed formation and evolution were studied and two possible mechanisms, i.e., surface nanocurvature effect and thermal activation effect, were proposed for a full explanation.
Preparation and Photocatalytic Preoperty of Cu11O2 (VO4)6 Photocatalyst by Sol-Gel Method
Authors: Wang Min , Liu Qiong , Luan Hai Yan
Published: October 2011

Cu11O2 (VO4)6 powders have been synthesized by complexing Sol-Gel method using citric acid as chelate, calcined at different temperature without using any template. Techniques of X-ray diffraction (XRD) and scanning electron microscope (SEM) have been employed to characterize the as-synthesized materials. The photocatalytic activity was evaluated by photocatalytic degradation of methyl orange (MO) solution under UV-light. It revealed that temperature values can influence significantly on the morphologies and structures of the products.It also found that the sample prepared with the molar ratio of citric acid to metal inons be 2:1, pH=7 and calcinated under 500°C for 4 hours was pure triclinic Cu11O2 (VO4)6 phase.In this conditions, the sample had highest photocatalytic activity with the photodegradation rate was about 78.9% or so in 60min under 20W ultraviolet lamp.
Prediction and Analysis of Ecological Effects of Property Rights Reform in State-Owned Forest Based on GM (1, 1)
Authors: Han Wei , Qiu Wei , Deng Hong Xing , Fan Ying
Published: October 2011

This paper is base on the 5 pilot Board‘s management data from 2002 to 2010 when the property right reform of state-owned forest were carried out, use the characteristic that the gray model can solve the uncertainty relation of various factors within the system to predict the ecological effects of reform in the period 2011 to 2015. Model prediction accuracy is better, the results show that: the ecological evaluation of the reform--new forest area and tending forest area will decrease while survival rate will increase significantly in the future.
Study on Local Administrative Rules for Environmental Management on Urban Contaminated Sites in Chongqing
Authors: Chen Ji Da , Xia Ke , Liao Shi Guo , Tian Jun , Qi Qian Qian , Liu Li
Published: October 2011

Environmental management on brownfields is still a new field in China, and it is imperative to study and develop the related environmental management system to adapt to the present situations of our country due to rapid urbanization and redevelopment of brownfields in recent years. In order to ensure environmental conditions for "livable Chongqing" and "healthy Chongqing", suggestions for revising the present "Environmental management measures of contaminated sites in Chongqing" were proposed in this paper based on fully analyzing the status of urban soil pollution control and management in our country, understanding successful experiences of brownfield management in developed countries, and summarizing the shortcomings of environmental management on evacuated industrial sites in Chongqing.
The Present State of some Resource and Social Problems Concerning China’s Sustainable Development
Authors: Zhang Yong Hong
Published: October 2011

Sustainable development is an inevitable choice for China. However, some existing problems in China restrict the sustainable economic and social development. This article uses large amounts of data as evidence to demonstrate the present state of the problems of great public interest, such as shortage of resources, the widening gap between the rich and the poor, employment and medical problems, with the goal of deepening people's understanding and promoting resolution of these problems.
Ecological Footprint Analysis of Resource-Based and Heavy Industrial City Sustainable Development
Authors: Wu Ming , Yao Yao , Jia Feng Rui , Wang Lei
Published: October 2011

The ecological footprint model with food, house, energy and waste as consumption accounts through analysis of urban matter and energy consumption was established. Based on 2000-2009 data of Fushun, a resource-based and heavy industrial city, ecological footprint, ecological carrying capacity and ecological surplus/deficit of Fushun were analyzed, respectively, and then urban sustainable development status was evaluated. The results show that the urban development state is ecological deficit and ecological deficit index have been increased from 5.227hm2/cap to 6.516hm2/cap during 2000-2009, Fushun is always under an overload condition, which is highly unsustainable. The ecological footprint is 89.39% made up by the fossil energy footprint on average, the main consumption of Fushun's development are fossil energy land. And then urban 104 Yuan GDP ecological footprint index decreased from 5.660 hm2/cap to 2.247hm2/cap during 2000-2009, the urban energy utilizing efficiency have been improved.
Multiaxial Low Cycle Fatigue Life Prediction at 300 °C Using Equivalent Strain Appoach
Authors: Zhang Wen Xiao , Gao Guo Dong , Mu Guang Yu
Published: October 2011

The low cycle fatigue behavior was experimentally studied with the 3-dimension notched LD8 aluminum alloy specimens at 300°C. The 3- dimension stress-strain responses of specimens were calculated by means of the program ADINA. The multiaxial fatigue life prediction was carried out according to von Mises’s equivalent theory. The results from the prediction showed that the equivalent strain range can be served as the valid mechanics for predicting multiaxial high temperature and low cyclic fatigue life.
Preparation of a New Rosin Ester Derivative
Authors: Shi Zhan Wan , Wang Ying , Yao Xing Dong
Published: October 2011

a new rosin derivative—methylthiomethyl dehydroabietate has been synthesized from dehydroabietic acid and DMSO. The effects of reaction temperature, time, the amount of catalyst and mixing molar ratio of reactants on the yield have been investigated. The optimum reaction conditions were: the reactants were kept at 215 oC for 3h with dimethyl sulfoxide/ dehydroabietic acid mixing molar ratio of 22: 1 in the presence of 0.4% KOH catalyst ( based on the mass of dehydroabietic acid). The yield of product could reach 90%. The precise structure of the product was characterized as methylthiomethyl dehydroabietate by GC-MS, UV, FT-IR, High-Resolution Mass Spectrometry, 1HNMR and 13C NMR.
Eco-Efficiency Assessment of Farming Activity in China
Authors: Cheng Cui Yun , Ren Jing Ming , Wang Ru Song , Liu Feng
Published: October 2011

This paper estimates the eco-efficiency of farming activity at a provincial scale in China based on Data Envelopment Analysis model. The results show that provinces in central area presented relatively lower eco-efficiency, the western provinces are higher eco-efficient, while provinces in eastern provinces are low or high eco-efficiency. It also indicates that provinces with higher crop production usually have lower eco-efficiency, which proves that Chinese crop production deeply depends on resource input.
Optimization Study on Stability of Dragline Stripping Bench and Mining Parameters of Dragline Stripping Technology
Authors: Mei Xiao Ren
Published: October 2011

Heidaigou Surface Coal Mine (HSCM) is a large surfaces coal mine that first uses the throwing blasting - dragline stripping technology. Lots of new demanding prompt solution issues appears in HSCM without any successful experience in China, such as the stability of dragline stripping bench, the design and implementation of throwing blasting parameters, and the optimization of dragline stripping technology parameters. Rigid Body Limit Equilibrium Method (RBLEM) was used to study the safety and stability of dragline solid high bench and dragline stripping loosen bench under different workface parameters and influence factors. The safe operation parameters of dragline stripping bench are proposed. The dozer lowered height of the stripping bench, the width of extended bench and dragline operation parameters are optimized using the Optimization System of Dragline Stripping Technology (OSDST). The results can provide the decision support for HSCM.
Investigation on Technical Route of Low Carbon Electric Power Industry in Shandong Province
Authors: Han Kui Hua , Liu Hong Tao , Zhang Wen Qiang , Guo Dong Xu , Zhao Ji Heng , Lu Chun Mei
Published: October 2011

As one of the most developed provinces in China, Shandong has consumed large amount of energy and released a lot of CO2 during the economic development. Moreover, the power industry has consumed more than half of the energy and released the most CO2. In order to explorer the situation of carbon emissions in Shandong province, investigation and demonstration have been done based on the present power structure situation. The investigation and study result indicated that the low carbon development route and strategy in Shandong could be divided into two ways: making full use of the new clean energy and developing power generation technology with high efficient.
Study on Movement Law of Overlying Strata during Shallow Thinner Seam Mining in Shendong Mining Area
Authors: Zhang Xi Cheng , Qin Zhong Cheng , Li Qing Hai , Zhang Ning
Published: October 2011

Given the particularity and the first time for shallow thinner seam mining in Shendong mining area, the overlying strata movement law during shallow thinner coal seam mining has been studied in this paper based on the fully mechanized thinner coal face of NO.71301 in Shi Getai coal mine, resorting to observation on spot, numerical simulation and other methods. Through research, the important laws and features had been obtained, such as, initial pressure step, periodical pressure step, the obvious partition of periodical weighting, the unitary elasticity distribution of front abutment pressure, and the stress shell morphology over the mining rock, which provides important characteristic for roof control and foundation for the powered support selection.
Capacity of Non-Signaled Intersection on Condition of Ice-and-Snow
Authors: Mao Cheng Yuan , Pei Yu Long , Cheng Guo Zhu , Hu Li Wei
Published: October 2011

Traffic characteristic on the conditions of ice-and-snow road performance is quite complex and that seriously influenced the capacity of non-signaled intersection. This paper comparatively analyzed the critical gap and headway on the condition of ice-and-snow or normal, and then analyzed the capacity of non-signaled intersection by the acceptability gap theory, and put forward the headway modify coefficient and the non-signaled intersection capacity modify coefficient for ice-and-snow. The results are the complementarities of traffic flow characteristic on ice-and-snow condition, and they are useful for directing setting traffic engineering facilities in the cold zone.
On the Importance, Meaning and Realization of the Ecological Civilization with Chinese Characteristics
Authors: Zhang Yong Hong
Published: October 2011

Ecological civilization is the only way for the development of human civilization, and also something required for human overall development and our national interests. Ecological civilization with Chinese characteristics includes five aspects: understanding ecology, managing ecology, constructing ecology, advocating ecology and tasting ecology. It’s characteristic of Chinese ecological civilization to protect environment while developing. To carry out the ecological civilization construction effectively in China, we must try hard to strengthen the ecologically ruling construction of the party and the government, reinforce the ecological civilization education and grasp the key points and actively mobilize the public.
Sustainable Development Model of Microcredit Companies in Shaanxi Rural Areas
Authors: Wang Qian , Wang Man Cang
Published: October 2011

Microcredit has been developing rapidly these years and already become one of the ways of financial services as poverty reduction activities in developing countries. As an important supplement to rural finance, microcredit for the peasants has been gradually developed and improved in China as well as other developing countries. In Shaanxi Province, which is one of the first batches of pilot provinces, microcredit also achieved sufficient development. However, in recent years, microcredit companies are facing the challenge of developing sustainably. Based on this background, the paper is to explore the sustainable development model of microcredit companies, and a new model has been proposed to solve the existing problems of its sustainability and innovation.
Thougts on Community Participation in Manchu Ethnic Tourism
Authors: Su Xiao Yan
Published: October 2011

Community participation is considered to be an effective approach to realize sustainability in tourism, but in our country we pay less attention to it. We analyze the necessity on community participation in Manchu ethnic tourism, give some suggestions on it, and use the model to show the interactive relations between these suggestions and community participation.
The Study of Surfactant Effect on Soil Water Infiltration
Authors: Li Yi Fei , Qian Tian Wei , Huo Li Juan
Published: October 2011

In this paper,the effect of surfactant to the infiltration and the change of saturated hydraulic conductivity was studied by GUELPH PERMEAMETER. We investigated effects on soil infiltration by three representative surfactants.The results show that the existing of sodium dodecyl benzene sulfonate (SDBS), cetyl trimethyl ammonium bromide bromide (CTAB) and polyxyethylene fatty alcohol (AEO9) would decrease soil saturated hydraulic conductivity.
Optimization and Application of High Production and High Efficiency Mining Parameters of Fully Mechanized Caving Face
Authors: Guo Zhong Ping , Hu Shan Chao , Zhang Zhi Gao
Published: October 2011

The size of the fully mechanized caving face is optimized by theoretical analysis and the dip length of the face is determined as 260m. With the method of numerical simulation, the reasonable cutting height of the face is determined as 3.5m and the caving method is determined as one round caving in order. The physical simulation is used to analyze the caving effects under different drawing intervals and the reasonable drawing interval is determined as 0.8m. The coal recovery is improved by 3.43% after the parameters are applied in field and the goal of high production and high efficiency of the mine has been achieved.
Study on Scale Inhibition Performance of Polyaspartic Acid Derivatives with Dihydroxyl Group on CaCO3
Authors: Fu Li Jun , Zhao Yu Zeng , Ge Hong Hua , Li Yong Sheng
Published: October 2011

An environment-friendly and multifunctional agent for industry circulation cooling water, polyaspartic acid derivatives with dihydroxyl group(DHPAP) was synthesized in aqueous solution. The FTIR spectrum of DHPAP was analyzed. Static experiments were carried out to validate scale inhibition performance of DHPAP. The scale inhibition ratios exceed 90% when 8 and 10 mg/L DHPAP under solution temperatures of 80 and 60°C, respectively. The scale inhibition ratios increase by increasing the DHPAP concentration with 6 and 8 mg/L under heating times of 10 and 6h, respectively. And the scale inhibition ratios are over 90%.
Study on the Container Transport Chain Security under the Condition of Customs Non-Traditional Security
Authors: Ning Zhong , Cao Jing Yu , Ning Xian Yu
Published: October 2011

Confronted with the unstable global environment and the threat of transitional terrorism, besides from the traditional function of supervising the economy frontier, the non-tradition functions Customs has become more and more important. In the supervision of foreign trade, Customs not only ensure the enforcement of legislations, but protect the country from terrorism attack. However, the tremendous amount of containers and the request of trade facilitation have always challenged the sufficiency of Customs supervision. Customs must adopt risk management into its work. This paper studies the risk assessment of container security using FTA and FMECA in order to quantitative the risk in the container cargo shipping process and help Customs regulate efficiently.
Gas Geology Law and Gas Forecast in Yongju Well Field
Authors: Jia Cui , Wang Yu Lin , Yang Xu , Zhong Mi Shan , Yan Nan
Published: October 2011

This paper takes gas as a geological-mass to study, using gas geology theory, by analysising the geological conditions of Yongju mine in ShanXi, combining with the coal seam gas content data which measured underground to study the relationship between geological conditions and gas occurrence, reveal the gas occurrence factors: geological structure, roof and floor lithologic of coal seam, buried depth of coal seam and thickness of coal seam. Finally, using the measured data of gas content and gush, regression analysis, the gas gush is forecasted, playing a guiding role in the gas control and production safety .
Research on the Design for Strip-Partial Mining Method under Villages at Xiaotun Colliery
Authors: Feng Rui Min , Zhang Jin Long , Fu Hui , Pei Lei
Published: October 2011

Basing on the geological mining condition under villages at Xiaotun Mine, according to the existing theories of the strip-partial mining, using the method of analyzing the field measurements date and calculating by empirical formula, the safe range of mining and retained widths can be confirmed, the mining schemes for different widths of coal pillar can be designed, and the optimum scheme can be worked out; and then the coal pillar stability of each mining scheme will be calculated through numerical simulation analysis, providing the basis for appropriately selecting the optimum scheme; on this basis, through simulation prediction of the surface movement and deformation, the surface movement and deformation laws of strip-partial mining is revealed to guide production of Xiaotun colliery.
Comprehensive Evaluation of the Stability of Coal Mining Subsidence Based on Fuzzy Matter-Element Theory
Authors: Liu Wen Sheng , Li Fan Yue , Guo Xian Tao
Published: October 2011

Established the Fuzzy matter-element Model for Comprehensive Evaluation of the stability of coal mining subsidence. Analyzed each factor of the stability of coal mining subsidence, and constructed Fuzzy Comprehensive Evaluation of coal mining subsidence. With Fuzzy matter-element theory, make the stability of coal mining subsidence as matter element thing, Application of the things of the evaluation criteria and the fuzzy values to construct compound fuzzy matter element, and calculate the weights of each index with AHP, construct degree Evaluation Model with the concept of closeness, in order to achieve the stability evaluation of coal mining subsidence.
Research on the Ultra-Fine Titanium Dioxide Suspension Stability and Fractal
Authors: Chen De Wei , Ge Xiao Ling , Shi Quen Tin , Tian Jiu Wang
Published: October 2011

Using scanning electron microscope, the microscopic pictures of the surface on sediment have been obtained from the sub-micron titanium dioxide suspensions without dispersant or adding different types of dispersants. Deposits of titanium dioxide suspension have been observed and the mechanism of the dispersant has been analyzed. Meanwhile, deposits of titanium dioxide gray distribution figure have been gained by self-compiled Matlab program, which proved that the surface sediments is fractal, and the fractal dimension has been calculated under different conditions. The rules between suspension stability and fractal dimension have been achieved.