bluuebunny/crossref_metadata_2025 huggingface dataset:
Disposal of Cuprous Chloride Waste Water with the Ion-Exchange
Authors: Xue Juan Qin , Zhao Xiao , Liu Yao , Quan Xue Ting , Wang Cong
Published: March 2013

Based on the analysis of the structure property of the ions in the cuprous chloride wastewater, the study on the ion exchange of the cuprous chloride wastewater and the regeneration of resin had been experimentally investigated with 201×7OH— strong-alkali negative ion resin and 732Na strong-acidity positive ion resins. The influence on the disposal effect from the variation of pH and the addition of NaCl and Na2SO4 had been examined. The results showed that for the negative ion exchange reaction. If pH was adjusted with HCl, the concentration of copper in the waste water decreased slowly as pH decreases. If pH was adjusted with H2SO4, the concentration of copper in the waste water increased slowly as pH decreases. The addition of NaCl and Na2SO4 could enhance the exchange efficiency of negative ion. For the positive ion exchange reaction, the exchange efficiency of positive ion could be enhanced by the addition of HCl or H2SO4 which decreases pH; the addition of NaCl and Na2SO4 could enhance the exchange efficiency of positive ion, but was not significant.
Research on the Optimization of Supply Water Pipe Network
Authors: Zhang He , Zhang Xiao Hui , Cui Jian Guo
Published: March 2013

This paper mainly introduces the important significance on the optimization of water supply pipe network . And in terms of the present situation of and problems existing in china’s urban water suppling,puts forward a series of concrete measures for the network optimization .
Current Situation and Prospect of Reclaimed Water Reuse
Authors: Qi Jun Feng , Chen Lei , Ma Ren Jiao
Published: March 2013

The paper summarized current situation and treatment technology of the reclaimed water reuse at domestic and international, and analyzed benefits and development obstacles of the reclaimed water reuse.
Two Stochastic Fraction Bedload Transport Rate Models for Nonuniform Sediment
Authors: Zhang Bin , Liu Xing Nian , Yang Feng Guang
Published: March 2013

Based on a method stochastic processes, two new bedload transport models for the ith size fraction nonuniform sediment are theoretically developed by using a stochastic model of sediment exchange and the probabilistic distribution of fractional bedload transport rates. The relations, proposed recently by Yang, for the probability of fractional incipient motion and for the average velocity of particle motion are introduced to bedload formulas. Plenty of experimental data for the bedload transport rate of uniform sediment are used to determine parameters. Finally, the two models are verified with natural data expressing the transport of nonuniform sediment under full motion in laboratory flume. The result shows that the experimental observations agree well with the predicted fractional bedload transport rates. Comparison of the theory with field data shows that the proposed formula still applies to uniform sediment transportation condition as long as the relevant parameters for uniform sediment are taken into account.
Analysis the Reasons for Low Water Level Emerged in Poyang Lake Based on Hydrological Long-Time Series Decomposition by EMD
Authors: Lin Yu Ru , Kong Yan Jun , Yan Tao
Published: March 2013

The wet and dry periods with multi-time scales of hydrological long-time series in Poyang Lake and Yangtze River were analyzed based on the method of Empirical Mode Decomposition (EMD). The results indicated that the variation of wet and dry periods of Yangtze River and Poyang Lake had diversified representation, and consistency with the meso and short scale periods. The reasons for the low water level emerged early and the lowest water level had breakthrough the history were explained.
Analysis of the Distribution Feature of Wuliangsuhai Lake Nutritious Elements
Authors: Li Wei Ping , Xu Jing , Yang Wen Huan , Zhang Xiao Ya , Han Pei Jiang , Shi Yi Ran
Published: March 2013

This essay tries to research into the existing form of the nutritious elements in lake water--- nitrogen and phosphorus with geochemical theories, views and knowledge by analyzing the space-time distribution feature of Wuliangsu Lake nutritious elements-- nitrogen and phosphorus and its geochemistry environment under different pH values, temperature and pe values.
Comparison of Tidal Sand Ridges between the Subei Shoal and the West Korea Bay
Authors: Xu Xiao Da , Cao Zhi Min , Zhang Zhi Xun
Published: March 2013

In the Yellow Sea, two large terrains of tidal sand ridges developed, respectively, in the Subei Shoal and the West Korea Bay. Sediment supply, hydrodynamics and bedforms are critical factors to form them. In this paper, sediment composition, morphology of sand ridges, etc. are analyzed in terms of relevant factors and subsequently their formation mechanisms and evolution processes are careful compared.
Bagasse Wet-Stored with the Hypochlorite Bleaching Waste Water
Authors: Sun Bing , Bao Li , Liu Yu Xin
Published: March 2013

In this paper, the bagasse was wet stored by hypochlorite bleaching waste water with or without chlorine. The dissolution ability of lignin, total sugar and reducing sugar was investigated. Then the effluent properties with the wet storage time prolonging were tested. The results showed that some small molecular weight substances were dissolved from baggase, such as sugar and lignin. And the dissolution ability of hypochlorite bleaching waste water with chlorine was better than that of hypochlorite bleaching waste water without chlorine. And the change trend of effluent properties for the two wet storage system were similar. With the wet storage time extending, the dissolved substances were degraded, COD and chroma of effluent were decreased, and the properties of effluent were improved.
The Seismic Response Analysis of the Jacket under Multiple Support Excitation
Authors: Sun Jian Mei , Cui Hao
Published: March 2013

The effect of incoherency of seismic waves and wave travel on the displacement and force response of jacket structure are investigated from the maximum force, reaction force, the displacement, and so on. The conclusions illustrate it is necessary to consider the effect of multiple support excitation. The research of the differences of seismic response under multiple support excitation from uniform excitation presents the theoretical foundation on aseismatic projects for long span space structures such as jacket.
Analysis on the Impact Factors of Female Environmental Responsibility Behavior
Authors: Wu Yong Chun , Xu Lian Feng , Liu Xin Kui
Published: March 2013

As the participants of environmental protection and the major takers of environmental risk, women have special needs, function and values, which makes them become the main force in the environmental construction. However, in the current environment construction in China, women haven’t played a proper role. This paper thoroughly analyzes the impact factors of female environmental responsible behavior forming.
China’s Environmental Governance and Law Development Review Based on Co-Word Analysis
Authors: Liu Zhong Mei , Wang Xu Kun
Published: March 2013

The research and development situation of environmental governance in the past thirty years may be intuitively acquired with the co-word analysis in the interdisciplinary environmental law. This paper analyzes the research focus and transformation situation of China’s environment governance and law by searching related papers with the subject words “environmental law” in Chinese Journal Full-text Database. The co-word analysis results show environmental law research showed five main knowledge focuses, such as international environmental law, sustainable development, environmental right, participation, and environment conservation. And according to the co-word analysis, environmental law research may be divided into four stages: foundation, prosperity, from theory to practice transformation, and challenge stage of environmental law response to new environment problems. By analysis of the research focus, we can know China’s researchers in the environmental governance policy or law should strengthen the scientific, pertinence and prospective characteristics of environmental law research, make interdisciplinary and comprehensive study combined with China long-term science and technology development.
Cooperative Game Analysis of the Establishment of Global Climate Partnership
Authors: Guo Zhi Da
Published: March 2013

The selection of global climate partners and the establishment of global climate partnership touch vital interests all over the world. Under the global climate game, the cooperation and confrontation behavior among contracting parties is analyzed in the course of establishment of global climate partnership. Taken as a whole, the complex game process of the establishment of global climate partnership is submitted to analysis according to game theory. In the meantime, a partner selection model of climate cooperative partnership is built and some phenomena of the benefit struggles are explained in detail and policy and suggestion are drawn.
Environmental Flows Legislation and Regulations in Foreign Countries and the Enlightenment to China
Authors: Chen Chang Chun , Wang La Chun , Cao Xue Zhang , Song Jie
Published: March 2013

Environmental flow is a key factor to protect river ecological system, however, there is no international agreement concerned with environmental flows exclusively so far. This paper demonstrated the importance and urgency of environment water demand in the world and presented summary and analysis of environmental flows legislation and regulations. Europe and other countries have been investigated and compared systematically. At last, specialized legislative proposals were provided for protection of aquatic ecosystems and their environment in China.
An Optimized Method to Trace the Oil Spill Based on a Multi-Buoys System
Authors: Wang Tian Lin , Ji Huang Ji
Published: March 2013

After years of research and experiments, the Japanese scholars have improved the automatic buoy system. The tracing accuracy has been greatly improved because the tracing error of the automatic buoy can be automatically corrected. But it is difficult for the automatic buoy to become a standard configuration for the offshore structures of oil storage and transportation because of complex technology and high price. In this paper, a multi-buoys system is founded to trace the oil spill. The system reliability of oil spill tracing is greatly improved.
Preparation and Characterization of N-Butyl Pyridine Nitrate
Authors: Tian Peng , Zhao Zhi Gang , Song Yang Yang , Meng Bo , Qin Tian Ling , Zhu Ting Ting
Published: March 2013

The halogenated hydrocarbon and pyridine are used in the synthesis of room temperature ionic liquid intermediates chlorinated N-butyl pyridine BPC. We use the double decomposition reaction of BPC and NaNO3in acetone for the synthesis of BP-NO3 ionic liquids. We use infrared spectrometer for the structSubscript texture characterization, it is proved that we have gotten BP-NO3room temperature ionic liquids. Solvent polarity and acidSubscript textalkali both will have a room temperature ionic liquid ultraviolet spectrum diagram happen displacement, so in the ionic liquid and other solvent mixed solution of ultraviolet spectrum diagram, want to indicate the use of solvent. Therefore, solvent polarity and acid alkali both will have an influence on ultraviolet spectrum diagram displacement of room temperature ionic liquid.
Establishment of Fiscal and Taxation Policies for Environmental Protection System
Authors: An Jin
Published: March 2013

Environmental pollution and ecological degradation in China have continued to be serious problems and have inflicted great damage on the economy and quality of life. As the largest developing country, China’s fiscal and taxation policies on environmental protection and sustainable development will be of primary importance not only for China, but also the world. By taking a critical look at the development of Chinese environmental fiscal and taxation policy, we try to determine how best to coordinate the relationship between the environment and the economy in order to improve quality of life and the sustainability of China’s resources and environment.
An Analysis of the Development of Tourism in the Mountainous Area and the Ecological Environment Protection – Take Jinsixia Park as an Example
Authors: Yang Xiao Hai
Published: March 2013

As the development of economy, the utilization of tourism resources is like a raging fire. But in the process of development and use, ecological environment protection problems become a problem that we must face and solve .Through case and gambling research methods, this paper analyzes the ecological environment protection problems in Shangluo Jinsixia Tourism Development Zone in the process of tourism business, and puts forward suggestions and countermeasures according to the existing problems. Through careful analysis, this paper finds that local governments, the enterprise and the villagers have some interest conflicts and contradictions, and the conflicts between them will continue in the future. How to coordinate the interest conflicts between them, and how to lay a good foundation for the protection of the ecological environment become an important issue that we have to face and solve. This paper holds that the key to the problems is to strengthen the government's macroeconomic control, to supervise the tourist enterprises, and to cultivate the ecological and environmental protection consciousness between tourism enterprises and local villagers.
Groundwater Protection in Water Laws
Authors: Fu Heng Yang , Xu Ji Shan
Published: March 2013

The traditional water laws in many countries in Europe and North America viewed groundwater as the property of the owners of the land above it. Land owners could use the groundwater under his land freely without considering the impact to his neighbours. Today, the rapid development of urbanization and industrialization have resulted excessive extraction of groundwater and pollution of groundwater quality in many countries and regions. The grim situation has prompted the change of the world's water law and made many regulations of groundwater protection come into being. Most of countries in the world have tried to control the extraction of groundwater by issuing licenses, and to protect groundwater from pollution by introducing water quality standards and environmental requirements. The article summarizes the rules relating to the protection of groundwater in the past and present water laws, and analyses the development trend of the groundwater protection in contemporary water laws and the process of international groundwater legislation. The laws specially used for groundwater protection are less. The legislative progress which realizes the sustainable utilization of groundwater is still very slow.
Soil Microbial Functional Diversity from Different Infection Grades of Banana Fusarium Wilt (Fusarium oxysporum f. sp. Cubense)
Authors: Deng Xiao , Li Qin Fen , Hou Xian Wen , Wu Chun Yuan
Published: March 2013

Thirty rhizosphere and non-rhizosphere soil samples from different infection grades(0, I, III, V and VII) of three typical banana plots(Jianfeng, Shiyuetian, Chongpo) infected by banana fusarium wilt (Fusarium oxysporum f. sp. cubense) in Hainan province were collected to study the microbial community functional diversity applying Biolog-ECO microplates technology. The results are as follows: (1) Overall carbon source metabolic capacities of soil microbial community weaken with increasing of infection grades of banana fusarium wilt. (2) Richness indices, Simpson indices, Shannon indices and McIntosh indices of soil microbial community gradually decreased with increasing of infection grades of banana fusarium wilt. (3) Principal component analysis show that metabolic characteristics of soil microbial community significantly change between the healthy plants and diseased plants in the same banana plot. The results would provide information for explaining the pathogenesis of banana fusarium wilt and controlling its incidence by applying microbial ecology to regulate soil environmental measures.
A Research on the Problems and Solutions in the Development of the Forest Parks in China
Authors: Zeng Zhao Xi , Zhang Ai Wen , Wang Qin Tao
Published: March 2013

Since the establishment of the first forest park in 1982, the development of forest parks has been gone through 30 years in China. They are not evenly distributed, and form three levels of ladder pattern with forest park numbers increasing from west to east. They are centralized in the provinces which the forest landscape resources are abundant. The prominent problems in the development of the forest parks are: the imbalance of the development speed; the insufficiency of the approval system; the improper matching between the employees and the forest park resources; the lag of the legal construction; the shortage of the government investment, and which is not matched with the forest park resources; the insecurity of the funds investment, and which decreases the investment of environmental protection. The solutions to the problems in the development of the forest parks are: perfecting the approval system and controlling the scale of the national forest parks; balancing the government investments and the number of employees; perfecting the laws and regulations related to the forest parks; increasing the public welfare and the investment of environmental protection.
Grey Assessment of the Ecological Adaptation of Major Strains of Trees Commercially Used in China
Authors: Wang Zheng Xin
Published: March 2013

A novel grey assessment model with variable weights was proposed to assess the ecological adaptation of major strains of trees commercially used in China. The contribution of each criterion was measured by the classified information entropy and the degrees of whitenization functions. The results show that the new model can integrate experts’ experience and sample information for confirming each criterion’s weight.
Estimation and Study on Forest Water Conservation Ecological Benefit
Authors: Meng Lin , Mao Xue Gang , Zhai Chang , Wang Li Na
Published: March 2013

By using Ecological Observatory Station survey data and Landsat-5 TM remote sensing image data in 2008 as the basic data to construct the conventional multivariate statistical model. The determination coefficient of regression model was 0.788 and the average test accuracy was 81.1%. By using the parameters of this model as the input data to Geographic Information System (GIS) to reveal the spatial distribution of quantity and value, then estimated the total forest water conservation quantity of Laoshan in 2008, I = 263.78 tons, established the currency structure model of the study area to estimate the total value quantity of water conservation effective, E = 1.3189 million yuan. And then analyzed the variation feature of quantity change with topographical, also, the variation fits the truth.
Study on the Design Methods of Seabed Sediment Thematic Maps’ Symbols
Authors: Cui Yang , Cui Gao Song , Wen Chao Jiang , Liu Tao
Published: March 2013

In order to meet the designed demands of military seabed sediment thematic map, this paper researches the designed methods of sediment symbols on military seabed sediment thematic map. Combined with analyzing the characteristics of sediment elements, this paper studies the restrictive factors and designed principles of seabed sediment symbols on general charts. For the sake of the requirements of marine military affairs, this paper discusses the designed principles and implemented methods of sediment symbols on military seabed sediment thematic map.
GeoServer Based Forestry Spatial Data Sharing and Integration
Authors: Yu Xin Wen , Liu Hong Yu , Yang Yan Chen , Zhang Xu , Li Ying Wu
Published: March 2013

Spatial data is becoming increasingly important in forestry resource management and decision making. However, huge amount of accumulated spatial data were not fully utilized due to the difficulty of sharing and integration. A forest spatial data sharing and integration system was developed based on GeoServer. A distributed architecture was adopted to address the data storage in different organizations. WMS and WFS were the main service for data sharing and integration. Applications demonstrate that the system can easily share and integrate various spatial data.
Research on Yield Estimate Dynamic Model of Rice in Chongqing
Authors: Chen Yan Ying , You Yang Sheng
Published: March 2013

In this paper, MODIS-250m vegetation index from first 10-day of March to last 10-day of November in 2010and 2011, land use data and the yield data from 9 counties such as Jiangjin, Wanzhou, Fengdu, Liangping, Qijiang, Liangping, Fuling, Yunyang, Kaixian, Wixi in Chongqing were used. Based on GIS，RS technique and NDVI analysis results, the rice planting area was extracted. Four key growth period of rice such tillering, jointing, heading and milk were selected to establish dynamic assessment model. In nine counties, the average relative error of the remaining 8 counties was between 5.36%-17.09%, and the mean was 12.31% except Qijiang that estimation results and actual yield deviation was too large. The results show that building rice yield estimation model using normalized difference vegetation index was feasible that can realize the dynamic yield estimation of rice.
Analysis on the Anti-Disturbance in Measurement Data Processing of Regularization Method
Authors: Yang Jun Liang , Zhang He Sheng
Published: March 2013

In measurement data processing, tiny disturbance of the design matrix can enlarge the deviation between least squares estimation solution and true value and the solution distortion arises. By choosing the reasonable parameters according to the regularization method, and Under the constraints of two indicators which are the mean square error and the estimating efficiency，disturb the observation data by varying degrees on the design matrix to determine the relationship between regularization method and ill-conditioned problem in measurement data processing.
Evaluation of Urbanization Coordination Degrees in Gansu Province
Authors: Shi Pei Ji , Chen Li , Liu Hai Long , Liu Hai Meng
Published: March 2013

This paper divides urbanization into four parts, population urbanization、economic urbanization、land urbanization and social urbanization, and then calculates the coordination degree of urbanization by using TOPSIS and coordination degree function method. The results show that,(1)Urbanization in Gansu Province has experienced two courses.(2) In 2010, the urbanization within Gansu Province could be divided into four types, population-oriented、land-oriented、economic-oriented and population - economic-oriented.(3) Only 4 cities’ urbanization tended to coordinated development from 2001 to 2010 , it is declined for others.(4)The urbanization coordination difference is significant, and coordination shows different characteristics.
Impact Analysis of Heilongjiang Province Highway Construction Investment on Regional Economy
Authors: Hua Rui
Published: March 2013

The rapid construction of highway in Heilongjiang Province greatly promoted the development of region economy, but on specific question of degree, most research focus on the qualitative research, rare quantitative research. The paper uses the input output method to put the highway construction industry into traditional U-V table and calculate highway construction investment on regional economic gross effect, which has important application value on evaluation and decision-making of transportation after constructing highway.
A Discussion of Taiyuan’s Urban Master Planning (2010-2020)
Authors: Ma Rui , Zhao Jian Bin
Published: March 2013

This paper presents theoretical comments on the “Taiyuan’s Urban Master Planning (2010-2020)” mainly in the aspects of the city's orientation, functions, urban transportation and eco-environmental planning. It can be seen that the master planning have a new scientific orientation of the city of Taiyuan by perceiving it as “a historic ancient capital of culture"; sufficient attention is paid to the relocation, renovation and update of TISCO, TCIGO and other heavy chemical companies; the newly designed urban public transit passenger transport organization mode is utilized to settle the increasingly prominent urban transport problems; tourism development is promoted under the premise of the protection of ecological environment as well as historical and cultural heritages; a number of shortcomings and recommendations for improvement are also proposed, trying to provide decision-making references for further adjustments and improvements of Taiyuan’s urban planning.
Influence of Carbon-Sources and C/N Ratio on the Heterotrophic Denitrification
Authors: Chen Jing , Li Bo , Wang Ning , Li Hong Juan , Wan Dong Jin
Published: March 2013

The effects of external Carbon-source (both type and C/N ratio) on heterotrophic denitrification were evaluated. Glucose, methanol and ethanol were chose as the C-sources, and the optimal C/N ratio of ethanol was decided as 2 while that of glucose and methanol is 6.5 and 2.5 respectively. Compared with methanol and glucose, ethanol is more efficiency, its average denitrifying rate was 1.2483 mg/g•h.This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text.
Impacts of Climate Change on Potential Climatic Productivity of Wheat in Suzhou
Authors: Fu Jin Mu , Gong Wei , Chen Xiao Yin , Fang Gang
Published: March 2013

Global climate change has far-reaching impact on natural ecosystems and the socio –economic system, which has called for attention of governments and scientific community and even the general public now. In the background of global climate change, the study of the effect of climate change on crop potential production has an important theoretical and practical significance. The relationship between wheat productivity and climate change and the response of the wheat productivity to the climate change were studied with Suzhou, China being a study area, aiming to provide a scientific basis for rational development and utilization of climate resources against the global climate change in Suzhou. The results showed that the annual average temperature of Suzhou tended to increase by 0.23°C per 10 years from 1977 to 2007. The annual precipitation has not been increased obviously over the recent 30 years. In the terms of annual change of climatic productivity of wheat, the average wheat productivity on the whole showed a increasing trend the last 50 years. However, the potential climatic productivity of wheat every decade first decrease and then increased. The correlation analysis indicated that there were assume the weak and assumes the strong correlations between the wheat climate productivity and the temperature and the precipitation with their relation coefficients (R) are R=0.04187 and R=0.70051, respectively. the influence of the precipitation to the Suzhou wheat climate productivity is higher than the temperature obviously . But there were the strong correlations between the wheat actual output and the temperature and the precipitation, therefore, the temperature and the precipitation are the important attributes that enhances wheat climate productivity realization rate.
Analysis of Microbial Characteristics for BAF
Authors: Lan Mei , Zhang Jia Yuan , Zhao Wei Wei , Dong Meng , Zhang Yong
Published: March 2013

In the biological aerated filter, the number of microorganisms and activity play a key role on the removal of the organic matter. Studying the microbial mass distribution is a useful method for understanding the organic matter degradation mechanism, and it can provide theoretical basis for the operations. Blood count plate was adopted to determine the number of living bacterium, the test results show that attachment biomass of activated carbon reduce with the increase of the height. The biomass and the viable bacterial number counted in the height of 25cm from BAF water level is 15.0 CFU/g·dwC whereas 3.24mg/g·dwc by VAS, which is the largest along the height. Backwashing restored the microbial activity in BAF, after back washing, biomass at different height from25 to105cm are 0.6 mg VAS/g·dwc or so, which is almost similar to filtering beginning.
Study on Lanzhou Public Green Space Planning
Authors: Zhang Xiao Juan , Chen Hui
Published: March 2013

By analyzing Lanzhou public green space location features and the service radius in China, this paper presents some main problems of Lanzhou public green space. Based on above, from the perspective of the ecological environment, usability and the landscape, some key planning strategies of urban public green space are proposed. This paper presents a good case for reference of Lanzhou public green space planning practice.
The Ineffectiveness of Landscape Diversity Index in Biocontrol: An Evidence from Small Scale Farmland
Authors: Zhou Ke , Yan Miao Miao
Published: March 2013

Landscape diversity index behaves ineffective in small scale farmland. The correlation coefficients between Shannon's diversity index as well as Simpson's diversity index with the population density of ladybeetles are negative. This result is opposite with the results from large scale farmland in developed countries. Landscape pattern has significant influence on the population density of ladybeetles. Especially the cotton/wheat relay intercrops have significant influence on the population density of ladybeetles. Besides grassland are also beneficial to the population density of ladybeetles.
Study on the Change of Landscape Ecological Quality Based on Land Use: A Case Study in Resource-Exhausted Mining Area
Authors: Xu Jia Xing , Li Gang , Zhao Hua
Published: March 2013

In order to research the effect of land reclamation on landscape ecological quality(LEQ) in mining area, taking Jiawang mining area in Xuzhou as an example, LEQ and its changes before and after reclamation were evaluated with an indices system which was constructed form stability and interference level of landscape ecosystem based on RS, GIS and landscape ecology. The weight was assigned for each index by analytical hierarchy process (AHP) and entropy technology. The results showed that land use of the study area dramatically changed, manifesting by farmland continuous decreases and the built-up areas rapid increases, secondly, woodland decreases after increasing, grassland and water slight increases, which were in an unbalanced state overall. The landscape ecological situation of the study area had a better trend from 2001 to 2010, implying that land reclamation project had played a certain improvement on the regional ecological environment in mining area. It is believed that this work may provide scientific reference for land reclamation and landscape restoration of coal mining area.
Main Characteristics and Prevention Strategy of Disaster in Binhai Industrial Park
Authors: Jin Rui Feng , Zeng Jian , Tang Hao
Published: March 2013

Binhai Industrial Park faces high risk of industrial disaster, and owing to its location near the Sea, it is subject to the influence of chain disaster resulted from natural calamities (leakage chain disaster, blast chain disaster). Therefore, it is essential that we tighten our control on each level and break the chain of disaster through disaster monitoring technology, risk assessment technology and emergency rescue technology. And the whole work should be based on the theory of chain-cutting disaster mitigation and the technology of 3S digital information. We should emphasize on the function of disaster prevention when we plan Binhai Industrial Park and design the industrial buildings, improve the technique of comprehensive disaster prevention within the framework of urban planning. With the adoption of certain counter-disaster strategies (the strategies should be related to the natural causing factors of the industrial disaster, such as storm tide), we will achieve our goal of building a disaster-free industrial park.
Biomarker Characteristics in Hydrocarbon Source Rocks of Hongqi Formation, Tuquan Basin
Authors: Jiang Xing Chao , Zhang Jian Mei , Liu Fei
Published: March 2013

Based on gas chromatography mass spectrometry techniques, the biomarker characteristics of the Hongqi Formation source rocks in the Tuquan basin are studied, information and petroleum geological significance on organic matter origin, sedimentary environment and organic matter maturity are revealed. Biomarker assemblage characteristics of the Hongqi Formation source rocks are described as follows: Long-chain tricyclic terpane and gammacerane is abundant, C27 regular steranes is predominant. The low content of gammacerane in organic matter shows that the source rocks were deposited in the low salinity environment. The mean value of steranes/hopanes is 0.40, showing more contribution from algae than bacteria. High content of C27 regular steranes indicate that the parent material input is mainly the low aquatic oSubscript textrganism. Biomarker parameters including Ts/(Ts+Tm) ratio, C29 steranes 20S/(20S+20R) ratio, C29 sterane αββ/(αββ+ααα) ratio indicate that Hongqi Formation source rock has reached or surpassed the main phase of oil generation.
The Methods of Shale Gas Resources Potential Evaluation in the Application of Chongqing Northeast
Authors: Zhu Yu
Published: March 2013

To analyse the potential evaluation of shale gas resources and to know the resources of shale gas in Chongqing northeast, it is very important to research on the methods of shale gas resources potential evaluation in the application of Chongqing northeast. Based on the research of shale gas resources potential evaluation by comparing with the American, and combined with the characteristics of shale gas in Chongqing northeast and the thickness, density, buried depth, TOC, Ro, organic types, conditions of cap rock and reservoir, using abundance analogy method, volume method and Delphi method in this area to forecast preliminarily the shale gas resources in Chongqing northeast. The results show that there are rich in shale gas resources of Chongqing northeast and have broad prospect for exploration.
Application of Colligation Coefficient Method Classifying Flow Units
Authors: Yu Sheng Yun , Su Dong , Xu Hai Ying
Published: March 2013

The classification of flow units is the deep study of reservoir heterogeneity. In this paper we use a part of some oilfield as an example. Vertical flow units subdivision is up to the standard of single sand layer, which is the delicate reservoir anatomy. We use the related parameters and core data to obtain the quantitative standard of horizontal flow unit classification of no-coring well by the colligation coefficient method. Flow units distribution is consistent with distribution of sedimentary facies, it changes only in partial zone. Flow units distribution basically reflects the variation of sedimentary facies, it shows the plane macroscopic heterogeneity of reservoir.
Research Progress on the Extraction, Purification and Pharmacological Action of Flavonoids in Trollius Chinensis Bunge
Authors: Li Hong Yan , Liu Yang
Published: March 2013

Trollius Chinensis Bunge, a kind of Ranunculaceae plants, has been widely used in pharmacology, pharmaceutical chemistry, pharmacy and clinical. Trollius Chinensis Bunge has pharmacological actions, such as anti-bacteria, anti-oxidation, anti-cancer. The preperations of Trollius Chinensis Bunge is effective against tonsillitis, pharyngitis, enteritis etc, and flavonoids are the main active ingredients. In this paper, the extraction, purification, pharmacological actions of flavonoids were reviewed.
Study on Microwave - Assisted Extraction of the Yellow Pigment from Orange Peel
Authors: Tang Xiu Hua
Published: March 2013

The article is about extracting the yellow pigment from orange peel with the aid of microwave.It mainly studies the effect of concentration of ethanol,the ratio of material and solution,microwave time,microwave power on the extraction percent of yellow pigment .The Orthogonal experiment shows that the order of factors which influence the extraction rate are microwave time,microwave power and mass concentration of ethanol. The optimized process conditions are mass concentration of ethanol as 85%,the ratio of material and solution as 1:16g/mL,microwave time as 8 minutes,microwave power as 200W,the extraction percent of yellow pigment can be 8.59%.
Research on Cooperated and Continuous Non-Pillar Mining Technology
Authors: Guo Zhou Ke
Published: March 2013

This thesis, making research on 4224 Mining District of Zhangcun Mine and combining with the geological features of the good lithological conditions of the roof and floor of the mining district and low gas content，etc, put forward the maintain roadways pattern of gob-side entry retaining, adopt adding anchor cables and erecting monomer pillar and other methods as the means to strengthen support, and effectively prevent the gangue to flow into the roadway by hanging grid on the up-side, and make research on ground behavior regular of gob-side entry retaining. Raise the transporting method that the face support move along the Gob-side Entry to the Open-Off Cut of the next section，which shorten the face moving route and moving time, achieve quick successival of the adjacent face. Meanwhile, continuous mining makes the surface appear continuous sinking, avoid the adverse impact on the surface of the sinking marginal basin, and minimize damage to the environment. Achieve the maximum recovery of coal resources, and minimize damage to the environment.
Extraction and Anti-Fatigue Activity of Polysaccharides from Cyclocarya paliurus (Batal.) Iljinskaja
Authors: Cao Li
Published: March 2013

The aim of this study was to establish the optimized ultrasound-assisted extraction (UAE) conditions of polysaccharides from Cyclocarya paliurus (Batal.) Iljinskaja (PCP) and explore the potential anti-fatigue activity of PCP. The optimum UAE condition through single factor experiments and orthogonal experiment was determined as followings: solid-liquid ratio of 1:25 g/mL, ultrasonic power of 400 W, ultrasound time of 40 min and ultrasound temperature of 60 °C. The forced swimming test was employed to evaluate anti-fatigue activity of PCP, and the results showed that PCP had anti-fatigue activity on mice. It can increase exhaustive swimming time and hemoglobin contents, whilst reducing blood lactate and blood urea nitrogen contents.
Narrow Pillar Mining Technology of Fully Mechanized Sublevel Caving Faced with Great Cutting Height in Tashan Mine
Authors: Fan Yuan , Pan Wei Dong , Wang Zhao Hui , Li De Lin , Song Wen Bo
Published: March 2013

Based on the great thickness of coal seam in Tashan Mine, narrow pillar mining technology was adopted to liberate more coal resources from coal pillars. In this paper, the research status of narrow pillar technology was analyzed, and the main problems of the narrow pillar mining technique were solved by theory research. The method and technical route of this study was offered in final. The results have great reference value to the fully mechanized sublevel caving with great mining height in similar conditions.
New Method about Predicting Three-Dimensional Drillability
Authors: Li Shi Bin , Guo Xin , Zhang Li Gang
Published: March 2013

In the pre-drill prediction drillability, the current rock drillability evaluation method by drilling coring and laboratory test, combining with logging data to establish the relationship between the acoustic time and drillability. At last, to get drillability profile. Drillability predicted value often has a large error because of downhole lithology having complex, uneven thickness of the layers, it is difficult to meet the construction requirements, so the application is ineffective. New prediction methods about a three-dimensional drillability are introduced by this article, taking into account the different layers of different lithology ,discussing different layers, combining with fractal interpolation method to significantly improve the prediction accuracy before drilling, having provided favorable conditions for drilling speed and reducing the cost of drilling.
Evaluation on the Suitability of Land Used for Engineering Construction in Mining Subsidence Area
Authors: Chang Chun Qin , Zou You Feng
Published: March 2013

The evaluation of engineering-construction suitability in mining subsidence area is a comprehensively decisive issue which is multi-factor and multi-level. Based on the analysis of basic influential factors of the engineering-construction suitability and the special influential factors of mining subsidence-area, uses the model and the technical route of Analytic Hierarchy Process (AHP), a hierarchical comprehensive evaluation index system is constructed. After making the qualitative and quantitative analysis, every index is assigned a value in different levels and the calculation model for evaluation on the suitability of land used for engineering construction in the mining subsidence area is built with the method of multi-factor weighted composite index. At last, the classification standard of suitability is offered On the basis of above-mentioned analysis.
Separation Test of Copper-Lead Ore from Guangxi
Authors: Xiao Hong , Liu Quan Jun , Jiang Mei Guang , Yang Jun Long
Published: March 2013

The test ore is a kind of relatively high grade of sulphide copper-lead ore, the difficulties of test is the effective separation of copper and lead, the lead grade of 13.08% and copper grade of 1.33% in comprehensive core sample. After the exploring test of principle flow sheet, the flotation process of depress lead and float copper is used. As a result, the grade of copper is 25.25% and lead is 6.23% in the copper concentrate, the grade of lead is 51.23% and copper is 2.44% in lead concentrate. The test research has certain guiding significance about copper and lead separation on production.
Study on Application of Intensifying Depression Talcum in the Copper Sulphide Flotation
Authors: Li Guo Dong , Gao Li Kun , Dai Hui Xin , Dong Hai Fang
Published: March 2013

Talcum is a common gangue with which sulphide ores are associated, it has an adverse impact on sulphide ores flotation and product index due to its high natural floatability. In this paper it takes talcum-bearing copper sulphide ores from DongChuan in Yunnan province as experimental samples, and a series of tests on depressing talcum in the copper suphide ore flotation were carried out. Results show that when took the composed CMC and sodium hexametaphosphate as depressant with respective dosage 200g/t and 300g/t, it obtained a favourableeffect. In addition, depression effect can get improved with the dosage of collector increasing properly, it shows that when took the composed CMC and sodium hexametaphosphate as depressant, it can make the flotation process stable.It employed rougher-scavenger-three cleaners system as the closed-circuit flowsheet, and attained a Cu concentrate product of whom grade and recovery is 16.16%, 78.78% respectively.The results might contribute to dispose some similar talcum-bearing sulphide ores in the future.
The Study of Grinding Phosphate Rock by the Contrast of Steel Balls and Iron Segments
Authors: Yan Fu Kun , Xiao Qing Fei , Tong Xiong , Luo Chun Mei , Li Bo
Published: March 2013

The grinding process has been one of the most important part for mineral processing,combined with the basic principle of selective grinding and grinding medium application,a low grade phosphorite in Yunnan province which was grinded by the precise size and ratio of iron segments, and with the same specifications compared with low chrome steel balls under the same condition.The obtained results shown that iron segments could get a fine grinding with level(+0.10mm) 1.89 percentage points lower, pulverization level(-0.01mm) 0.07 percentage points lower,intermediate easy level(0.074～0.038mm) 9.29 percentage points higher,which further explains the iron segments has a better selective grinding effect,and could be used as a kind of ore fine grinding medium.
Study of Effect of Ternary-Component Blended Coal on Coal Gasification Reaction at High Temperature
Authors: Li Han Xu , Cao Xiang , Tang Yong Xin
Published: March 2013

Three typical Chinese individual coals which existed remarkable difference on coal ash chemical composition and ash fusion temperature were selected to carry out coal blending experiments to study the coal gasification reaction at high temperature by means of using ternary-component blended coal technique and TGA-DTA method. According to ternary-component blended coal with a certain proportion, ash chemical composition and coal-char/CO2 gasification reactivity were analyzed by X-ray fluorescence (XRF) and thermogravimetric analysis-derivative thermogravimetric analysis (TGA-DTG), respectively. The results show that the ash chemical components change because ternary-component blended coals change the mineral composition, and hence, the gasification reactivity can be affected as well. Moreover, in accordance with reactivity index R, it indicates that the order of gasification reactivity of three individual coals and four blended coal options is coal x > option B > option A > option D > option C > coal z >coal y. Meanwhile, a new mathematical model called per unit ash alkali index B* was established by using the ash chemical component dates, which has a good corresponding relationship with R for four blending coal options. Utilizing ternary-component blended coal technique could improve the high-temperature coal ash gasification reaction.
Effect of Reaction Conditions on ClO2-Oxidation Demulsification for Oil-Water Transition Layer in Settling Tank
Authors: Yuan Dan Dan , Wang Bao Hui , Sheng Hai Xia , Wu Hong Jun , Sui Xin , Dong Jing , Feng Guang Qing
Published: March 2013

In order to meet the need of separating oil from water in the settling tank of the oilfield, ClO2-oxidation demulsification for oil-water transition layer in settling tank is introduced. In this paper, effects of reaction conditions on ClO2-oxidation demulsification were studied. The results show that the reaction temperature, reaction time and PH value have a heavy effect on the dehydration rate of the oil-water transition layer. With the increasing of the reaction time, the dehydration rate largely rises, and it can reach 84.18% and keep steady when the reaction is in 4 hours. With going the temperature up, the dehydration rate increases in a nonlinear way, and it can reach 85.23% at the temperature of 55°C. By decreasing the PH value, the dehydration rate significantly rises, and the maximum dehydration rate of 84.18% was achieved when adding 0.5 vol. % of the acid. The chemistry was discussed based on the principles and experiments. By demonstrating the experimental data and discussion, we can effectively control the oxidation performance of chlorine dioxide, which is very meaningful for oilfield on the aspect of stable production of petroleum.
Research of Guantao Thick Oil Reservoir Contrast Model in Gudao Oilfield
Authors: Wang Jiao , Wang An Guo
Published: March 2013

Southwest Gudao oilfield of heavy oil reservoir characteristics is complex, the fine reservoir division and correlation for increase in oil reserve and production is of great significance. According to the reservoir multi-level contrast method, will study area Ng5-6 sandstone group is divided into 11 small layer, 14 deposit time unit, and to establish a comparison model of reservoir. Reservoir contrast results and its application effect is good, improve the research area of thick oil development effect, and the economic benefit is remarkable.