bluuebunny/crossref_metadata_2025 huggingface dataset:
Jiyuan Oilfield Wangpan Mountain Chang 8 Reservoir Characteristics and Modification Evaluation
Authors: Wang Meng , Hu Rui , Zou Yan , Lu Ming Xu , Han Bo Wen
Published: February 2014

The Wangpan mountain of Jiyuan Oilfield Chang 8 is a typical "three lows" reservoir, reservoir thickness, tight reservoir, strong heterogeneity. Reservoir reconstruction method using conventional fracturing, well productivity is low, decreasing rapidly. By analyzing the characteristics of the reservoirs, and draw the same type of reservoir development adjacent experience in conventional fracturing on the basis of a multi-stage sand fracturing test techniques, and achieved good yield.
Application of Numerical Simulation Research in Chang110 Block
Authors: Yu Jiang Tao , Zhang Jin Liang , Xie Jun , Li Li Yao
Published: February 2014

This paper, using ECLIPSE for the research of reservoir numerical simulation, got the oil-water distribution and the situation of reserves distribution based on three-dimensional visualization of geological model in 110 block. Combining the effects of development experiment, this paper implemented the optimization of development scheme and parameter design of reservoir engineering which used the method of numerical simulation for Chang110 block. At last the optimal reservoir development model was chosen to attain the goal of gradual development of Changchunling reservoir.
Application of Facies-Controlled Physical Property Modeling in Oubei Block, Jinhu Depression
Authors: Chen Pan Pan , Xie Jun , Li Cun Lei , Wang Meng Qi , Liu Yi Dan , Li Bai Chuan
Published: February 2014

Three dimensional (3D) models provide insights into the distribution, external and internal geometry of the reservoirs. The core description shows that the fourth segment of Funing Formation (E1f4), Oubei Block, Jinhu Depression mainly develop delta front subfacies which included underwater distributary channel, mouth bar, sand sheet and so on. Well data and structural maps were integrated to build 3D structure model and sedimentary microfacies model of Oubei reservoirs using stochastic simulations with geometry data. The result of facies-controlled property model can reasonably reflect reservoir characteristics in detail, providing a reliable geological model for late reservoir adjustment and valuable reference for numerical reservoir simulation as well.
Analysis of Inducing Factor of Thin Seam Rock Burst in Xinxing Mine
Authors: Jin Zhu Peng , Qin Tao , Liu Zhen Wen
Published: February 2014

For occurring frequent thin seam rock burst disasters in deep mining stage in Xinxing Mine, through summarizing the mineral basic geological and mining conditions, on this basis, analysing the occurrence characteristics of rock burst with statistical method in Xinxing Mine, analyzing the inducing factors of thin seam rock burst, and through FLAC3D roadways along on 41,051 workface exploitation right beside left stacks of rock burst was simulated, and made a rock burst prevention focus for the impact of land pressure control system provides an effective basis. On thin hard coal burst prevention of important guiding significance.
Experimental and Modeling Study on the Strength of Tailings Backfill in Underground Mine
Authors: Huang Gang , Cai Si Jing , Zhang Ya Dong , Wu Di
Published: February 2014

Taking backfill material of underground mine as the object of study, this paper conducts the research on its strength characteristics by using uniaxial compressive strength testing machine at different cement-sand mass ratio and curing time and mass concentration which the method of experiment and theory analysis were used. The model of predicting the strength of tailings backfill was introduced, and its results were identical with the expreimental test after comparing. Therefore, the mathematical model can be used to estimate the strength of tailings backfill after assigning the specific value of tailing backfill. The tested results show that the uniaxial compressive strength of backfill rose with the increase of its concentration, cement-sand ratio, and the curing time; the strength of backfill was not enough to sustain the stope if the curing time is short and the cement-sand ratio is small.
To Construct the Evaluation System of Foreign Investment Environment of Mining Enterprises in China
Authors: Wu Wen Jun , Wang Wei
Published: February 2014

With the sustained and rapid economic growth, the demand for mineral resources will continue to increase in China. In recent years, under the strategy of “going out”, it became an inevitable choice for Chinese enterprises to allocate resources effectively and explore the market actively in the whole world. Determining how to construct the evaluation index system to make an objective and reasonable evaluation of mining investment environment of the host countries is the main purpose of this paper. Based on the previous theoretical models, this paper establishes the optimized mathematical model and, to a certain extent, provides a objective basis for the national investment in overseas mining, by using Fuzzy Synthetic Evaluation and Analytic Hierarchy Process.
Research Review on the Value of Coalmine Safety Investment Based on Real Option
Authors: Zhao Xue Ping , Tian Shui Cheng
Published: February 2014

The paper focuses on coalmine safety investment, studies and summarizes theories of safety investment and real option. Based on real option applications on pricing, venture investment, investment decision, estimation and valuation, investment assessment and safety investment, it analyzes the problems in researches on coal mine safety investments and advantages of constructing pricing model that combined real option with fuzzy mathematics theory, and proposes research direction of incorporating fuzzy numbers into real option model.
Assessment for Safety Capability of Mine Team Leader Based on AHP and GRA
Authors: Liu Can , Tian Shui Cheng , Liu Jie
Published: February 2014

Assessment index system for safety capability of mine team leaders is established to assess their safety capability accurately, after defining its concept. The system is comprised of two layers, with 5 indexes in the first-layer and 14 indexes in the second-layer. Furthermore, the relative weights of indexes are determined by analytic hierarchy process (AHP). The grey relational assessment model for safety capability of mine team leader is constructed based on the indexes system. The safety capability of 4 mine team leaders are assessed by the model, according to the sequences in their safety capabilities. Assessment for safety capability based on AHP and GRA could be a tool for evaluation and decision-making in mining enterprises.
Study on Mineral Processing Technology of Coal Pyrite in Yunnan
Authors: Li Ming Ming , Shao Yan Hai , Xu Shuan
Published: February 2014

Based on the analysis of the properties of a high carbon pyrite from Yunnan, a series tests on gravity concentration and flotation were carried out. According to this basis, a closed-circuit flotation test scheme was worked out, which obtained a fine quality pyrite concentrate with a sulfur grade of 38.24%, comprehensive sulfur recovery of 70.87% and carbon content of only 0.87%.
Flotation of Sulphide Copper Ore of Sifangjing in Huidong
Authors: Zhang Tie Min , Fang Jian Jun , Jiang Tai Guo , Wang Shan , Mao Ying Bo
Published: February 2014

Flotation experimental research is carried out on a certain sulphide copper ore of Sifangjing in Huidong, Sichuan province. The ore exist in the deeper part of ore deposit. Because of the deep burried, the oxidation rate is relatively low. The ore belongs to the typical sulfide ore. For the characteristics of the mine and the scene of the test requirements, the use of direct flotation process has achieved a successful recovery of copper. In the cleaning operation ,Strengthen copper sulfur separation to obtain qualified copper concentrate. Under the proper process conditions ,the good technical indexes were obtained.
Research on Cationic Reverse Flotation of Magnetic Concentrate Using a Flotation Column
Authors: Wang Wei Zhi , Li Fu Ping , Meng Qing Lei
Published: February 2014

An experimental research to improve the grade of a magnetic concentrate from a concentrator using the cationic reverse floatation technology in the countercurrent bubble contact flotation column was conducted. The conditional tests of the pharmaceutical system and the flotation column operating parameters were done. The results show that the iron concentrate with the grade of 70.06% and iron recovery of 93.18% can be achieved according to the flow sheet o f one roughing and two scavengings under the optimal conditions. And the tailing grade is 12.08%.
Experimental Research of the Packed Flotation Column on Reverse Flotation about a Hematite Ore
Authors: Wang Wei Zhi , Chen Li Ping , Zhao Liu Bei , Zhang Qing Feng
Published: February 2014

At present, the good classification index has been achieved by anionic reverse flotation technology for the Anshan hematite, but the grade of the tailing is still high. The main reason is that the fine useful minerals can not be recovered effectively .According to the advantages of the packed flotation column, the reverse flotation tests of a hematite were conducted using the packed micro-bubble contacting flotation column. Based on the conditional tests of flotation column operating parameters and the pharmaceutical system, an iron concentrate with TFe grade of 67.05% was obtained and the grade of tailings was 11.25%.
The Complementary Technologies to Improve Polymer Flooding Efficiency for Class II Reservoirs of Daqing Oilfield
Authors: Feng Jiu Hong , Liu Yang
Published: February 2014

With the amount of polymer used in oil field increases year by year and the development results turn worse, people started to pay more attention to the technologies which can improve the polymer flooding recovery of class II reservoirs. Polymer flooding efficiency can be enhanced through methods such as detail geologic analysis, project design optimization and strengthen procedure management with applying mature supporting technologies. In this paper, the necessity of improving the polymer flooding effect of class II reservoir is introduced. The technologies to develop polymer flooding efficiency are proposed. The applying results of these technologies show that meticulous reservoir simulation and deepen recognize of structure and reserve and residual oil distribution are the base of improving polymer flooding efficiency. Optimizing polymer injection design to match the oil reserve is the key part of improving polymer flooding efficiency. Deepening technology research and building workflow of different measures and adjustment technologies at different production stages are efficient ways to improve polymer flooding efficiency. Insisting on the comprehensive adjust pattern of normal molecular weight with normal molecular concentration, individual design, scale injection, profile control in time, adjust with time and strengthen procedure management are the predominant guarantee of improving polymer flooding efficiency.
Prediction Method of Production Performance of Gas Well
Authors: Zhang Xu , Liu Wei Hua
Published: February 2014

Production performance prediction is the foundations for technical and economic evaluation of production system of gas well. Based on Material Balance Equation and Back Pressure Equation, it provides two prediction models of gas well performance, for two production modes (constant production mode and constant pressure mode) separately. These models can exhibit the change of some important production performance factors with time, such as Production, Recovery Efficiency, Wellhead Pressure, Bottom Hole Pressure, Formation Pressure, etc. By examples and discussion, it can be seen that, this method for predicting production performance is feasible and reasonable. Compared with other methods, the prediction model method expands the prediction range. It can predict the whole production periods of gas well (Stable Period, Decline Period, and Pressure-increasing Period).
The Oil Displacement Mechanism of Viscoelastic of High-Concentration Polymer in Lamadian Oilfield
Authors: Wu Wen Xiang , Zhang Dong
Published: February 2014

The field test of high-concentration displacement is implemented in Lamadian Oilfield North West Block. The value of enhanced oil recovery in the central area is up to 20 percent or more. In order to explore the reason of good stimulation effect of high concentration polymer flooding in Lamadian Oilfield, the mechanism of high concentration polymer systems for EOR is conducted in this paper. The high concentration is characterized by the viscosity and elasticity of polymer in this article. The results showed that: the concentration of polymer with 25 million molecular weight reach to 3000mg/L, the increases value of viscoelasticity is the largest. So high-concentration polymer is defined as 3000mg/L. Compared with conventional polymer flooding, high concentration polymer has a greater ability to expand swept volume and effectiveness of wash oil.
Comparative Study between Foreign and Chinese in Oil and Gas Resources Tax
Authors: Wang Jia Shan , Wang Ting
Published: February 2014

In order to adapt to different periods of economic development, Oil and gas resources taxes have been adjusted. There is a certain gap between the major foreign oil producers and Chinese oil and gas resources tax, including several aspects, for instance, the tax system, tax methods, tax rates, tax collection and management, tax incentives and so on. To this end, scholars have put forward a series of reform proposals, such as merging oil and gas resources taxes, raising taxes, expanding the differential gain, reforming imposed link etc.
Measurement of Contribution Rate of Construction Land Scale to the Secondary and Tertiary Industry Growth - A Case Study of Guangxi Province
Authors: Li Fu Rong , Sun Ai Qing
Published: February 2014

This article aims to quantitatively measure the contribution rate of construction land scale to the secondary and tertiary industry growth in GuangXi province, by establishing Cobb – Douglas production function. The results show that: construction land scale has a significant influence on the impact on Guangxi industrial economic growth; the construction land demand will remain strong in the future for the economic development of GuangXi; constraints of construction land scale on economic growth are obvious in GuangXi. So it can be concluded that demand- supply contradiction of construction land will be further intensified in GuangXi with the continuous development of industrialization and urbanization, and intensive utilization policy must be strengthened in order to improve construction land use efficiency.
Research on the Evaluation Method of Space Service Level of City Public Landscape Facilities
Authors: Li Chun Yang , Bi Hui Na , Bao Yu
Published: February 2014

Based on the evaluation of the space service level of public landscape facility in Qinhuangdao city as an example, a detailed analysis of the evaluation is presented. The reasonableness of the public landscape facilities and its layout are evaluated by this evaluation method. The evaluation index of spatial service level which is called dynamic balance is proposed. Meanwhile, the GIS is employed to establish the evaluation system for further improving the city's infrastructure construction.
Resource and Environment Constraints and Sustainable Urbanization Development in China
Authors: Dou Xiang Sheng , Wang Jing , Zhang Ya Xi
Published: February 2014

There is an intrinsic linkage between the resources and environment and the urbanization development. The state of urban resources and environment directly affects the size and speed of urbanization, while urbanization development has some adverse effects on resources and environment, too. This research indicates that, under the constraints of limited resources and environment, China must take the road of sustainable urbanization. However, the core of sustainable urbanization is to promote urban green planning, construction and development. Therefore, it is necessary to promote the ecology-oriented development of the industries and the communities in the cities.
Study on the Method of Landscape Ecological Design for the Urban Furniture
Authors: Feng Bing , Xia Ping
Published: February 2014

As the micro level of the city construction, the urban furniture landscape is an important part of the city ecological construction which cannot be ignored. To explore the method of landscape ecological design for urban furniture is very beneficial to create outdoor living environment ecology, safety and comfort in the city. Based on the analysis of landscape ecological urban furniture in each level of demand, the article proposes three kinds of ecological design methods as visual ecology, material ecology and technology ecology, and seeks the way of infecting and culturing peoples environmental protection consciousness through the micro ecological environment.
On the Coordinated Development of Land Utilization and Traffic Demand in Mountain High-Density City - A Case Study of Chongqing Main City
Authors: Lai Li , Li Ze Xin
Published: February 2014

This paper through the coordinate development of land utilization and traffic demand, to solve the problem of land shortage and traffic jam in the mountain high-density city, and to discuss theirs interaction mechanism. Based on the analysis of land utilization and traffic demand in the typical city-Chongqing, to explore the cause of high-motorization and high-transit trip traffic demand under the high-density and high strength development. It aimed to reveal the influence of land expansion patterns, land construction and development features, urban spatial structure for traffic demand, and explain the future of traffic demand has the feedback effects to land utilization. Finally, make a suggestion to the coordinated development of land utilization and traffic demand for Chongqing main city.
Evaluation on the Sustainable Development of Chengdu's Urban Form
Authors: Chen Lan , Mao Ying
Published: February 2014

Based on sustainable development and ecological criteria, this paper establishes a scientific evaluation index system of urban form. The use of mathematical statistics method and analytic hierarchy process (AHP) makes a comprehensive and quantitative evaluation on the sustainable development of Chengdu's urban form. The evaluation system is analyzed at the end of this paper that we have to enhance the development of ecological environment and resources with the applicable planning strategy proposed followed by.
Determination and Classification of the Damaged Cultivated Land Boundary a Case Study at Yanzhou, China
Authors: Xu Xian Lei , Yang Feng , Xia Yun Hai
Published: February 2014

Currently, the environment of the coal mine area is serious damaged by coal mining activities, and measures are imperative for the damaged cultivated land protection. This paper describes a new method and criterion for the boundary determination and classification of the damaged cultivated land caused by coal mining subsidence. The establishment of the demarcation criterion is achieved by comprehensive analyzing the influence of the groundwater depth, surface inclination, and the Visual Cultivated Land Sensitivity (VCLS). For the new criterion validation, the DEM and additional slope of the Yanzhou coal mining area are generated and the damaged cultivated land is classified into three grades. The results show that this criterion can be used to be the reference basis for the boundary determination and classification.
Numerical Simulation of Ground Surface Settlement Induced by Open-Cut Subway Station
Authors: Guo Yan Hui , Hou Ke Peng
Published: February 2014

Ground surface settlement induced by open-cut subway station has important implications for construction safety. Based on a subway station background of the line 3 west extension engineering of kunming metro line co.LTD. On the basis of geological survey results and indoor geotechnical mechanics experiment, the 3D geological model was established by three-dimensional finite difference method FLAC3D. Ground surface settlement Law and Retaining structure stability induced by subway station construction was analyzed. The analysis results provides a reference for structure optimization design and scientific construction of similar deep foundation pit engineering.
Stability Analysis of Main Structure for an Open-Cut Metro Station
Authors: Guo Yan Hui , Hou Ke Peng
Published: February 2014

Based on a metro station background of the line 3 west extension engineering of Kunming metro line co.LTD. On the basis of geological survey and indoor geotechnical mechanics experiment, the 3D geological model was established by three-dimensional finite difference method FLAC3D. Stability of main structure for the metro station was analyzed. The analysis results provides a reference for safety operation of the metro station.
Vibration Reduction Analysis of an Old Residential District under Vehicle Load
Authors: Huang Bo , Xia Tang Dai , He Peng Fei
Published: February 2014

Vibration phenomena on buildings in old residential district under non-seismic load are increasing. Given the vibration phenomenon on buildings in an typical old residential district under vehicle load, cast-in-situ bored piles in rows are suggested to reduce the vibration through analysis. Finite element method (FEM) is used to simulate vibration reduction effect of piles with different lengths. Considering analysis of the isolation of Rayleigh wave from far field and the result of FEM, 40 meter is the reasonable length of the vibration reduction piles. A vibration reduction solution is presented.
Architectural and Technical Development Speculations
Authors: Liu Wei Bo , Ai Shang Hong
Published: February 2014

Throughout history till today, the development of science and technology all play a very enormous role to the development of architecture. Our ancestor drawn the inspiration from the geometry ,and build up the fundamental rules of art .They created new structure system and developed new material by studying on the growth law of all nature on earth .Today, more and more architect makes use of 3-D imitate to carry out complicated shape .They also combine the high technology with architecture design to make building more humanity and more energy conservation. The science and technology progress has built vivid architectural space and images. But at the same time it also brought a lot of problems. How to harmonize these is the duty of architects.
Research on Emissions Characteristics and Treatment Technology of Black Carbon for Diesel Vehicle
Authors: Diao Chun Yan , Li Jian Feng
Published: February 2014

According to development environment of Diesel vehicle in recent years, emission situation, emission characteristics and treatment technologies of black carbon in diesel vehicle exhaust gas were investigated. Through comparative analysis of existing technologies, strategies and recommendations for resolving black carbon emissions were further presented so as to control or reduce the emissions of black carbon in diesel vehicle exhaust gas.
Study on Landscape Configuration Arts of Urban Winter Garden
Authors: Deng Zhi Ping , Ying Qiu Shi , Mo Ya Ying , Zhang Peng Chong , Wu Ci Fang , Lu Yi Jun
Published: February 2014

Winter is the most scenery depression during annual plant landscape. It could be improved depending on exploring suitable winter landscape construction methods, by using the rational allocation of winter ornamental plants. This paper discussed the ornamental characteristics of winter garden plants and winter garden plant landscape construction methods as well as configuration arts, proposed allocation patterns from different viewing angles, provided a reference for urban winter garden landscape.
On the Interior Space Design of "With and Without"
Authors: Zhou Ming
Published: February 2014

Interior space is the main target of Art and Design is to provide virtual body can enjoy the sway of various design elements environment indoors. This space is "virtual and real," "yes or no", the core issue is the interior design of the study.
The Impact of the Folk Art on the Formation of Traditional Dwellings in Western Sichuan
Authors: Dong Wen Ying , Zhang Ru Fang
Published: February 2014

The formation of the traditional dwellings' characteristics in western Sichuan was deeply influenced by the local folk art. To probe historical origins between traditional dwellings and folk art, and accelerate the protection of traditional dwellings, we excavate the profound connotation of folk art in three aspects: Sichuan opera, tea culture and wood carving.
Thinking of Rural Ecological Environment Problems
Authors: Zhao Zhe , Chen Chun Yan
Published: February 2014

The growing problems of the rural ecological environment in China have seriously affected the construction of harmonious society and new socialist countryside, and they have also impeded the implementation of strategic objectives such as the modern agriculture development. This paper sketches out the current situation of China in rural ecological environment security, including cultivated land of rural area, water resource environment, air quality, rural people’s living environment and biological diversity, these problems existing in agricultural industry, rural people’s living environment, and external pollution. And it provides reference for protecting and improving the rural ecological environment, promoting the construction of ecological civilization and boosting the sustainable development of the rural agricultural economy.
Carbon Dioxide Emissions from Energy Consumption and Projections in Shaanxi Province
Authors: Xu Jian , Zhang Wei , Zhang Jin Suo
Published: February 2014

Using the calculation methodology based on energy consumption, the amount of carbon emissions due to energy consumption in Shaanxi province were calculated from 2000 to 2010. The decreasing trends in carbon emission were analyzed in terms of energy structure, economic growth and industry structure. The increasing of carbon oxide emission of energy consumption of Shaanxi province was mainly drove by economic increasing. The carbon emission of the Secondary industry is the biggest one in energy consumption which is 60% in the gross carbon emission, then, the Tertiary industry is 20% of the gross carbon emission.
An Empirical Study on Low-Carbon Economy by Urbanization -Taking Chongqing for Example
Authors: Fu Rong , Hu Ji Lian , Quan Ying Shu
Published: February 2014

The papers research object is the relationship between urbanization rate and carbon emissions, analysis it using the theory of cointegration The result is shown, there is a long-term equilibrium relationship between urbanization rate and carbon emissions in Chongqing, carbon emissions is 2.36 times the increase of urbanization rate. Therefore, the view that high urbanization level is an important sign to weigh industrialization and modernization level of one city and one region is not appropriate.
Review of the Application of Water Pinch Technology in Water-Saving and Emission Reduction
Authors: Meng Li Hong , Qiao Qi , Liu Jing Yang
Published: February 2014

Water pinch technology for the water system of enterprises is one of the focuses on water-saving and emission reduction research of enterprises in recent years. This technology is characterized by the design minimal fresh water consumption and waste water emissions minimum and aims to achieve economic benefit optimum process integration technology. The application of water pinch technology to integration and optimization of the water system was reviewed, and engineering application examples of water pinch technology were introduced. The water pinch technology is simple and intuitive. Besides, it could achieve optimal solution for a single impurity system. But for multiple contaminants system, this method will no longer apply. Taking into account its limitations, the possible optimization solutions to application of water pinch technology in combination with other types of analysis tools in enterprise water system were put forward.
Sustainable Development of Agricultural Product Logistics
Authors: Wang Cheng Jun , Wang Mei Rong
Published: February 2014

As a large agricultural country, agricultural economic development determines the development of the national economy, and the logistics of agricultural products but restricts agricultural economic development, China's economic development is incompatible with the rural economy, largely agricultural logistics relationship enough disorders due. In this paper, according to the anti-agricultural own characteristics, the condition of the rural economy, the situation of logistics development, management system and development like logistics, be unbalanced urban and rural development and other factors put forward five agricultural logistics development model of sustainable development, and the corresponding development mechanism.
World Expo 2010 Promotes the Reduction in Carbon Emissions of Urban Transport
Authors: Zeng Lin Hui , Li Guang Ming
Published: February 2014

Transport sector is one of the main sources of anthropogenic greenhouse gases (GHG) emissions. Comprehensive countermeasures are needed in cities to mitigate transport GHG emissions. After reviewing green traffic measures that implemented by Shanghai since bidding for Expo 2010, this paper analyzes the achievement that Shanghai has made in carbon mitigation. The results showed that travel demand management and the constrcution public transportation infrastructure promoted by the event played a vital role in promoting mode shift to form public transport oriented traffic system. Carbon emission intensity of Shanghais urban transport declined steadily from 1.66 kg/trip to 1.55 kg/trip. The CO2 reduction attributable to mode shifts amounted to 4.99 million tons. It demonstrated that Shanghai Expo has promoted the city in carbon emission reduction through public transport improvement, new energy vehicles innovation, car growth restriction measures and green commuting initiate.
The Resource-Conserving and Environment-Friendly Industrial System Development Pattern of Hunan Province
Authors: Wang Xin , Liu Jian Jiang
Published: February 2014

Building a resource-conserving and environment-friendly industrial system not only conforms to the external demand of the international economic environment changes, but also meets the internal needs of the domestic economic transformation and the adjustment of economic growth pattern. It is also an inevitable requirement to realize two-oriented society in Hunan province. This paper expound the necessity of constructing two-oriented industry system from the respects of relations between different fields and the development trend, and explore the constructing ideas of two-oriented industrial system in Hunan province.
Study on Carbon Emissions and Economic Growth Based on Elasticity Decoupling Theory in China over 2000-2011
Authors: Fan Ru Guo , Wu Yang
Published: February 2014

In this paper, decoupling theory was employed to analyze the decoupling relation between carbon emissions and economic growth in china over 2000-2011,and energy consumption was introduced as intermediate variables to establish Tapio decoupling model based on growth elasticity. Research suggests that the decoupling relation between carbon emissions and economic growth is weak decoupling, which means the growth rate of carbon emissions is less than economic. Accordingly, several conclusions and suggestions are given at last.
Overview of Discharges from Pumping Stations and the Consequent Water Pollution Characteristics in Central Shanghai, China
Authors: Ye Jian Feng , Lu Dan Jie
Published: February 2014

Discharges from pumping stations to rivers have become an important issue in central Shanghai. Based on the analysis of the contaminant concentrations and the volume of discharged water in central Shanghai over the past five years, this research has identified that the discharges from pumping stations to watercourse were composed of DWDs and WWDs. The total annual discharges were approximately 155 to 202 million cubic meters. The contaminant concentrations in the DWDs were close to those in the local domestic wastewater (DW), while the WWDs usually had higher concentrations of the contaminants than the local DW. In central Shanghai, the total contaminant discharges (2008 to 2012) from pumping stations were 72,900-95,700 t·a-1 for suspended solids (SS), 67,300-88,100 t·a-1 for chemical oxygen demand (COD), 20,200-27,100 t·a-1 for biochemical oxygen demand (BOD5), 2,000-3,000 t·a-1 for ammonia-nitrogen (NH3-N), 4,100-5,900 t·a-1 for total nitrogen (TN), and 800-1,300 t·a-1 for total phosphate (TP).
Atmospheric Pollution: Statistical Models of Predicting SO2 Concentration in Shanghai
Authors: Xue Dan , Liu Qian
Published: February 2014

Air quality has been deteriorated seriously in Shanghai as a result of urbanization and modernization. Meteorological conditions affect air pollution levels in the urban atmosphere significantly due to their important role in transport and dilution of the pollutants. This paper aims to investigate usability of statistical methods for prediction of SO2concentration. Multiple linear regression (MLR) model and artificial neural network (ANN) model were used to predict next days SO2concentrations. The calculatedR2values were 0.56 and 0.55 for MLR and ANN model, respectively. This result shows the MLR analysis, providing simple and faster application facilities, may also be useful for modeling the impacts of meteorological factors on SO2levels besides the time consuming ANN model.
Genesis, Distribution and Engineering Characteristics of Recently Deposited Silts in Huaibei Plain
Authors: Wu Dao Xiang , Wu Zhi Hai
Published: February 2014

Huaibei Plain recently deposited silt by their causes can be divided into:1The recently deposited silt due to the divertion of Yellow River,is widely distributed in the Yellow River alluvial plain of Huaibei;2The deposited silt due to flooding of Huaihe River, mainly inFunan, Huaiyuan, as well as Wuhe near Huaihe River. Through the geological survey, exploration, and indoor and outdoor test data analysis, we had a research of Anhui Huaibei Plain recently deposited silt about its sediment characteristics, causes and distribution and Statistics of Anhui Huaibei Plain silt about the particle size composition, physical and mechanical properties;After comparison and analysis , the changing rule of soil physical and mechanical prosperties is evaluated in this paper.
Desorption Kinetics and Difference in Removal Enhancement of PAHs in Aged Soils by Tween 80
Authors: Li He Lian , Qu Rong Hui , Han Xue Mei , Chen Jia Jun
Published: February 2014

The desorption process and desorption rate is an important factor that influence the bioavailability and remediation efficiency. PAH contaminated soils from former Beijing coking plant are remediated by Tween 80 solution. Desorption kinetics and efficiency enhancement of PAHs by Tween 80 are investigated in this paper. Results show that (1) For the relatively water-insoluble PAHs with high molecular weight, the time needed for desorption equilibrium is longer than that of relatively water-soluble PAHs with low molecular weight. The desorption kinetics of PAHs fit better to Elovich equation than to the first-order kinetics equation, especially for the PAHs with 4-6 ring numbers, which means that the desorption of PAHs from soil is an heterogeneous diffusion process; (2) Due to the severe sorption loss of Tween 80, and the difficulty in removing PAHs from aged contaminated soils, Tween 80 solution at a concentration of 5000 mg/L can only remove the PAHs with efficiencies of 11.31-18.23%. The desorption enhancement of PAHs is 7.62-14.04%, with the values of 4-6 ring number bigger than that of 2-3 ring number, which indicated that surfactant is more favorable to the desorption of PAHs with more ring numbers and thus more hydrophobic.
Distinguishing Single Nucleotide Polymorphisms of DNA Using Fluorescent Oligonucleotide Probe Containing 2-Aminopurine
Authors: Bai Lin , Qin Hao , Jiao Yu Guo
Published: February 2014

The fluorescence intensity of double-stranded DNA (ds-DNA) hybridized by fluorescent 2-aminopurine (2-AP) oligonucleotide probe and different mismatched bases was studied by fluorescence spectra in this paper. The experiment designed and synthesised four oligonucleotide sequences with the bases of adenine (A), cytosine (C), guanine (G), thymine (T), and determined the fluorescence intensity of the mismatched double-stranded DNA. The results implied that the fluorescence intensity of oligonucleotide probe was varied due to different mismatched bases. And the fluorescence intensity was 546.9 with the ratio of 3.13, which showed a significantly increase as the mismatched base was A. While the mismatched base was T, the fluorescence intensity quenched to 43.26, as the ratio was 0.25. For C and G, the fluorescence intensity of 2-AP was 99.14 and 89.03, respectively, which showed a different degree of reduction.
Effect of NaCl Stress on the Photosynthetic Attributes of Atriplex centralasiatica
Authors: Fan Hai , Yun Xu , Li Ling , Liu Xiao Kun , Zhang Jie , Wang Bao Shan
Published: February 2014

Seedlings of Atriplex centralasiatica Iljin were treated with Hoaglands solution containing 0, 200 and 400 mM NaCl respectively, after 2 weeks, Pn, Gs and Ci were measured. Besides, CO2 compensation point, CO2 saturation point, photorespiration rate, plant fresh weight and other physiological parameters were measured. The results showed that under 400 mM NaCl, the decrease of Pn was due to non-stomatal limitation factor. With the increase of NaCl concentrations, CO2 compensation point and CO2 saturation point did not show significant change. The photorespiration rate of the plants treated with 200 mM NaCl showed a little increase. However, under 400 mM NaCl, the increase of photorespiration rate was not that significant. As far as the carboxylation efficiency is concerned, it decreased with NaCl concrntration. At last, the fresh weight showed significant change under 400 mM NaCl treatment, which paralleled with the change of photosynthesis.
Proteomics Study on Heavy Metal Contaminated Bellamya aeruginosas in Poyang Lake
Authors: Zhu Xiao Juan , Chen Wei , Li Jiang Hua
Published: February 2014

Heavy metal contamination to Poyang Lake is increasingly severe. Bellamya aeruginosas, the dominant species of bellamya in Poyang Lake, was chosen in this project to carry out a proteomics study, because they obtain nutrients from sediments directly and have a strong heavy metal enrichment capability. To get a better knowledge of the contamination level of Poyang Lake and a better understanding of toxicity and bioavailability of heavy metals contamination, the main heavy metals of surface sediments were tested and a proteomics study was carried out on bellamya aeruginosa, the dominant species of bellamya in Poyang Lake. Results of heavy metal tests show, to Poyang Lake, the most contaminated heavy metal is Cu, the widest contaminated heavy metal is Pb, the most contaminated area is the south lake area, and the least contaminated area is the entrance of Xioushui River. Proteomics analysis shows the main significantly different proteins are keratins or similar substances. These proteins are higher expressed in the samples obtained from the most contaminated area, so they could be the responding biomarkers for monitoring heavy metal contamination of surface sediment in Poyang Lake.
Evaluation of the Anti-Hypoxia and Anti-Fatigue Effects of Ganoderma lucidum Polysaccharides
Authors: Luo Lin , Cai Lin Min , Hu Xiu Juan
Published: February 2014

The present study was designed to determine the anti-hypoxia and anti-fatigue effects of Ganoderma lucidum polysaccharides (Gl-PS). The anti-hypoxia effects were evaluated by survival times of mice under anoxic condition of ordinary pressure. The anti-fatigue effects were evaluated by exhaustive swimming times of mice, and some biochemical parameters related to fatigue were measured. The results showed that Gl-PS could prolong survival and exhaustive swimming times, decrease blood lactic acid (BLA) and blood urea nitrogen (BUN) contents, and increase the liver and muscle glycogen contents of mice. Gl-PS had anti-hypoxia and anti-fatigue effects.
Influence of Polysaccharides from Lycium barbarum Fruits on Exercise Tolerance and Free Radical Metabolism in Liver of Mice after Exhaustive Exercise
Authors: Cai Lin Min , Wang Bei Bei
Published: February 2014

The purpose of this study was to examine the effects of polysaccharides fromLycium barbarumfruits (LBP) on free radical metabolism of mice after exhaustive swimming exercise. The results showed that LBP supplementation could alleviate fatigue and enhanced the exercise tolerance. Furthermore, LBP supplementation effectively attenuates the exhaustive exercise-induced increased lipid peroxidation and elevates antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase) activities. LBP may have therapeutic role in preventing liver tissue damage during exhaustive exercise.
Cloning of MeCWINV3 Promoter from Cassava and Transient Expression Analysis in Tobacco
Authors: Hu Yan Ping , Liu Jiao , Zhou Yang , Xia Wen Rui , Li Rui Mei , Duan Rui Jun , Fu Shao Ping , Hu Xin Wen , Guo Jian Chun
Published: February 2014

In order to study the inducement pattern and regulating mechanism of MeCWINV3 in Cassava. An 1160 bp promoter region upstream of the MeCWINV3 gene (GenBank Accession No. KC905170) was isolated from Cassava (Manihot esculenta) genomic DNA using PCR methods. Sequence analysis found that it contains typical TATA box and CAAT box, and several cis-acting elements that related plant stress responses, such as ABRE, ARFAT, GAREAT, MYB and MYC transcription factors. Furthermore, transient expression in transgenic tobacco was analyzed by inserting upstream of GUS gene in expressing vector. The results showed that GUS was mainly expressed in tobacco veins. This will be the basis for further investigating the function of the MeCWINV3 gene promoter.
The Immunohistochemical Staining Results of Three Different Decalcified Liquid on Tooth Specimens
Authors: Zhai Sha Fei , Pan Jin , Ma Zheng , Liang Fei , Huang Tao , Hou Li Peng , Qin Ying Xia
Published: February 2014

The enamel of tooth is the hardest tissue in human body, which makes it is hard to prepare cross-section slice. Decalcification is an important procedure in paraffin section preparation. Until now, there is no generally well-accepted decalcification method. Two kinds of acids decalcified liquid and Ethylene Diamine Tetraacetic Acid (EDTA) decalcified liquid were used to compare decalcified time and effect. HE staining and SABC immunohistochemical staining were carried out to compare their dyeing effect in three different decalcified liquid. The results showed that two kinds of acids decalcified liquid took less time to reach the thorough decalcified end point than EDTA decalcified liquid. But HE staining and SABC immunohistochemical staining with EDTA decalcified specimens showed better well-organized structure and vivid coloring. Thus, acids decalcified liquid is appropriate for rapid decalcification and preparation of slice. EDTA decalcified liquid is better to be used in the immunohistochemical staining in oral histopathologcal study.
An High-Efficient Method for Synthesizing N,N'-Dialkyl-Imidazolium Salts
Authors: Hu Jie , Zheng Yuan Suo
Published: February 2014

Ionic liquids (ILs) have come to the fore as environmentally solvent that is liquid at room temperature. Among all ILs, those based on imidazolium salts are interested because of wildly usage. In synthesizing the N,N-dialkyl-imidazolium, conventionally, the complex steps are used. In this work, however, it is shown experimentally that the salt also can be effectively synthesized by alkylating imidazole with halogenated hydrocarbon. In this way, different chains N,N-dialkyl-imidazoliums can be prepared, and the isolated yield higher than 85%. Compared with traditional operating procedures, the new method gives higher productivity, less operating steps and lower waste.
Biological Synthesis of Triangular Pd Nanoplates by Aqueous Extract of Syzygium samarangense Leaf
Authors: Sun Dao Hua , Li Peng Yao , Li Xue Liang
Published: February 2014

We report the facile synthesis of triangular Pd nanoplates using aqueous extract of Syzygium Samarangense leaf. The morphology and structure of the obtained Pd nanoplates were characterized by transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy analysis. FTIR spectra indicated that C=C, COH, and OCOH were mainly responsible for the formation of the Pd nanoplates.
Using Bacteria Addition and Reusing Retting Water Technologies to Accelerate Flax Degumming
Authors: Ge Jing Ping , Liu Peng Fei , Ling Hong Zhi , Cai Bai Yan , Song Gang , Ping Wen Xiang
Published: February 2014

Two pectinase-producing strains, HDYM-01 and HDYM-02, were added into retting tanks to accelerate the water-retting of flax after they were amplified in liquid medium. The results show that the yields of fiber flax retted with bacteria addition are higher than the control, and the difference is significant with F test. When reusing the retting water to the next tank to perform the water-retting with bacteria addition, the yields of fiber flax are also higher and the difference is significant with F test. The retting time would be shortened for 24 hr and the flax strength is raised for 20-30 Newton (N) with bacteria addition method and reusing retting water method.
Isolation and Identification of Main Microorganisms in Different Water Systems in Northern Hangzhou, China
Authors: Zhang De Yong , Xu Xiao Lu , Lu Yin , Shen Xiu Ying , Xu Hui Ying , Hu Wen Lang
Published: February 2014

Microorganisms in aquatic ecosystems play an important role in the processes like water purification, nutrition regeneration and biochemical circulation. Some microorganisms are also related to human diseases. To analyze the main microorganisms in the water systems in northern Hangzhou, water was sampled from three different rivers for isolation and identification of microorganisms. The highest diversity and quantity of bacterium was found in the rivers in Banshan industrial district, with an average 127 clones in each plate. For the Beijing-Hangzhou Grand Canal and Longshan reservoir, the number was 20 and 7, respectively. Similar trends were also observed for actinomycetes and molds. CCA analysis showed that the microorganism abundance was mostly related to the NO3-N, TP and TN values of water. Totally, 7 bacterium strains were identified, includingBacilluscereus,Escherichiacoli.,Klebsiellapneumoniae, and so on, which belong to 7 different genera. In an antibiotics sensitivity analysis, all of the 7 bacteria showed sensitivity to tetracycline.