bluuebunny/crossref_metadata_2025 huggingface dataset:
Pattern Classification Based on Self-Organizing Feature Mapping Neural Network
Authors: Ding Shuo , Chang Xiao Heng , Wu Qing Hui
Published: October 2013

Traditional pattern classification methods are not always efficient because sample data sets are sometimes incomplete and there are exceptions and counter examples. In this paper, SOFM neural network is applied in pattern classification of two-dimensional vectors after analysis of its structure and algorithm. The method to establish SOFM network via MATLAB7.0 is introduced before the network is applied to classify two-dimensional vectors. The adjustment process of weight vectors together with classification performance of SOFM model are also tested in the condition of different number of training steps. The simulation results show that the classification approach based on SOFM model is effective because of its fast speed, high accuracy and strong generalization ability.
Design of Wireless Fire Detection and Alarm System Based on ZigBee Technology
Authors: Chen Bo , Hu Ze , Ge Liang , Li Jun Lan
Published: October 2013

In order to transmit temperature and smoke signals timely and accurately in the fire alarm system of community, design one kind of wireless fire detection and alarm system, which is based on the wireless communication technology, ZigBee. When acquisition module receive the signals which come from the wireless data acquisition module which connected the room with temperature detection module, and then, send to the nearest backbone transceiver module, the defined center module receive the signals, at last, the signals are local-stored or transferred to fire center by GPRS. This design with the characters of low price, high efficiency and reliable, has a certain market.
Suggestions on Expansion and Modification of Soundscape Music-Likeness Indicator
Authors: Chen Guo Bin , Zhao Yue Zhe
Published: October 2013

Music-likeness is an indicator for evaluating temporal structure properties of environmental soundscape, of which fuzzy set membership functions are constructed on the basis of 1/fγ behavior of selected music fragments. The temporal dynamics in intensity and pitch vibrational sequences of Western Classical Music and Chinese National Music were analyzed by fitting their fluctuation spectra. Data comparison and statistical results show that temporal structures of these music fragments are geared towards 1/f behavior on the whole, but the probabilistic distributions of several parameters have significant difference between these two cultures. Finally, two suggestions on expansion and modification of music-likeness were presented on the basis of analytical results.
Multiple Crack Detection of Pipes Using PZT-Based Guided Waves
Authors: Yan Shi , Qi Ji , Zhao Nai Zhi , Cheng Yang , Qi Sheng Wen Jun
Published: October 2013

This paper focuses on the multiple crack detection of steel pipelines using PZT-based guided waves. Numerical simulations of cracked pipes based on ultrasonic guided-waves are conducted by using the ANSYS finite element software. Based on the analysis of the reflected signal, the arrival time of the crack reflection waves are determined and the crack positions are accurately evaluated by the calculation of the travel time and group velocity of the PZT-based guided waves. The crack parameters are numerically altered to determine how the parameters impact the sensitive degree of the pipe crack damage. To validate the efficiency of the numerical simulation, an experiment of the multiple crack detection for the same parameter pipe with the numerical model is performed in the laboratory, and the results match well with the numerical simulation.
A Novel Fault Diagnosis Method of Pump Rotor Based on Modal Analysis
Authors: Liang Xing
Published: October 2013

The 3D flow filed of pump is calculated based on the Navier-Stokes equations and k-ε turbulence model, and the simulation results not only are beneficial to analyze the pressure pulsation around pump impellers, but also provide the boundary conditions for modal analysis of pump rotors. And then a novel fault diagnosis method is provided to simulate the nature frequencies of rotor, and research the relationship between rotor structure and rotor abnormal vibration based on the modal analysis. The research results show that, the frequency of water pressure pulsation mainly concentrated in 24.5Hz and 49.0Hz, especially when the blade angle of pump is greater than -2°; the nature frequencies of first order modal and second order modal are closely to the same 49.0Hz, so it is easy to induce the resonance, and the resonance is an important factor which lead to the severe vibration of pump.
Forward Modeling of Controlled-Source Electromagnetic Using Finite Element Method
Authors: Wu Gui Ju , Hu Xiang Yun , Liu Hui , Yang Guang Liang
Published: October 2013

Controlled-source electromagnetic (CSEM) is an artificial source electromagnetic sounding method. which developed on the basis of magnetotelluric sounding. For showing the CSEM forward modeling result, numerical simulation method must be adopted. A discontinuous Galerkin finite element method is presented to solve problems based on formulation.
Subsidence Prediction under Thick Alluvium Based on Probability Integration Method
Authors: Wang Yong Hui , Zhou Jian Wei , Wen Bing
Published: October 2013

The surface subsidence resulting from coal mining can lead to terrible land damage, thus studying the distribution of surface subsidence under thick alluvium is of crucial significance.Focusing on the example of Henghe coalmine in Jining, Shandong province, this paperestablished the prediction model for main section and arbitrary points in mining areas based on the probability integration method, by which the size of subsidence, tilt, curvature, horizontal movement and deformation were predicted after the exploitation of coalbeds 2# and 3#. And the result, which is basically consistent with the actual situation, shows that subsidence areais 78 hm2 and the settlement reaches 9987mm. The thick alluvium covered the mining area accountsfor the greater surface subsidence coefficient, subsidence value, horizontal movement coefficient,horizontal movement, subsidence area and smaller deviation of inflection point.
Study of Desulphurization and Deashing for High Sulfur Coal
Authors: Cui Guang Wen , Sun Ming Yang , Song Guo Yang , Zhao Hui
Published: October 2013

A new method to determine the crushing size for Desulfurization and deashing is introduced. By this method, the proper crushing size of 3mm for the high sulfur coal in this research is obtained. Three cone hydrocyclone is used as the separation equipment for -3mm size fraction. Ep (Probable error) values from three cone hydrocyclone’s performance on different size fractions are discussed and an Ep value of 0.073 was achieved from three cone hydrocyclone’s treatment of 3mm-0.2mm size fraction. A desulfurization and deashing process is designed which leads to a satisfactory desulfurization and deashing result.
Determination of Silver Content in the Ore by Extraction Colorimetric Method with Diphenylthiocarbazone-Chloroform-Benzene Mixed Solvent
Authors: Yang Jin Hui , Liu Li , Dai Shi Liang , Wang Jin Song , Liu Hai Yan
Published: October 2013

This paper introduced an approach of using diphenylthiocarbazone-chloroform benzene mixed solvent to determine silver content in the ore by extraction colorimetric method. Ammonium chloride-sodium chloride was used for sample melting, and hydrochloric acidic water was adopted to digestion. Then, some parts of the interference elements were separated from it. Silver was dissolved quantitatively out of the ore, and formed complex negative ion of [AgCl-in the liquor. Chloroform-benzene mixed solvent as extraction solvent of diphenylthiocarbazone could improve the stability of diphenylthiocarbazone and silver complex, thus it could raise the accuracy and precision, simplify the operate procedure, and also avoid that phosgene pollute to the environment.
Application Discussion on the Bifurcation and Nonlinear Dynamic Theory in Mines
Authors: Wang Chuan Peng , Dong Long Hao , Tian Zhi Chao
Published: October 2013

Mining is a large-scale and highly complex misalignment system. The progressive damage and disorder development of the rock mass distort as well as the development that the rock mass evolution curve changes from the linear constant speed stage to the distortion stage which is accelerated by misalignment threaten the safety production in mines seriously. Therefore, the research on the rock mass distortion destroys plays an important part in guaranteeing the safety production in mines. This article elaborates the non-linear dynamics branch theory in detail, analyzes the branch phenomenon in slow change and stress-strain of rock mass according to its characteristics and advances the research procedure of the non-linear dynamics branch theory in mining. Moreover, it establishes the dynamic model according to the physical property of system and determines the stability of system using the branch theory.
Flotation Behavior Difference between the Pure Quartz and the Quartz Gangue of a Siliceous-Calcareous Phosphate Ore with Fine Size
Authors: Guo Fang , Li Jun
Published: October 2013

Flotation behavior of pure quartz is difference from that of the quartz gangue of a siliceous-calcareous phosphate ore with fine size. The flotation of pure quartz can attain satisfactory results at alkaline conditions. The IR analysis shows that adsorption intensity of quaternary ammonium salt is stronger which is likely to explain its preferable flotation performance for pure quartz. However, for quartz gangue of phosphate ore, the results are completely opposite. The acid condition is more favorable for reverse flotation than alkaline condition due to the existence of carbonate mineral. The alkyl amine salt is a more effective collector to remove quartz gangue from siliceous-calcareous phosphate ore, especial with 12 carbon chain. Zeta potential of the ore treated by it is almost higher than that by the other alkyl amine salts (with 10, 14 or 18 carbon chain), which suggests its stronger absorption on ore particles.
UDEC Numerical Simulation Research of Mining Overlying Strata Movement Regulation
Authors: Fang You Ling
Published: October 2013

The process of fractures developing of coal and rock and overlying strata movement is a temporal dynamic evolution process. In this paper, based on the research object a working face of a mine, using the UDEC numerical simulation software to research the movement of the working face upper strata in mining process, the results showed that the overlying strata forms "vertical three zones" in the vertical direction from bottom to top. Overlying strata above the goaf displays a fracture table with a trapezoid shape entirely; the cut side of the fracture angle is slightly larger than the working face side of the fracture angle. Numerical simulation calculation of the height of two zones will get a close consistent result to empirical formula. The conclusions have important guiding significance for reasonable arrangement of the gas exploitation.
Research on Detection and Control Strategy for UPQC without PLL in Coal Mine
Authors: Wang Yan Wen , Jiang Yan Hua
Published: October 2013

To improve the power quality of power grid in coal mine, a kind of detection and control method for unified power quality controller (UPQC) without phase locked loop (PLL) is put forward. It can get the positive-sequence component of unity fundamental voltage through Park transformation,and then obtains the positive-sequence active component of fundamental current after proper operation . The PLL or filtering of three-phase voltage and the synchronous coordinates transformation for current are cancelled. The control strategy of the system is studied and the effectiveness and validity of UPQC are verified by simulation results.
Full Cost Analysis of Energy Transport Modes in Sao Francisco River Basin in Brazil - A Case Study
Authors: Bachi Dante , Tiago Filho Geraldo Lucio , Russo Seydell Maria Rachel
Published: October 2013

With the beginning of unconventional exploration and exploitation of natural gas in Brazil, the question of how to transport the product is concerned. Being the transport an essential part to supply energy to consumers, to move towards energy efficiency one should seek sustainability in the logistic process from the production until delivery at final destination. The objective of this study is the regional assessment of two transport modes for natural gas: by pipeline or as secondary energy in the form of electricity. Since society no longer accepts development at any cost, to determine the best mode of transport three other factors have been added to the techno-economic factor, which are environmental and social impacts, and political risks, defining specific methods to internalize externalities. The full cost analysis considers the four factors under a balanced importance degree for planning towards sustainability. A case study deals with the energy transport (natural gas and electricity) to meet consumer markets in the state of Minas Gerais, between exploratory gas fields at Sao Francisco river basin. The research method employs the most relevant elements of analysis within the four dimensions, assigning specific valuations according to transport mode particularities and providing the best product transportation mode. To attend the region demand for energy, full cost analysis points to energy transport in the form of electricity as the best alternative.
Numerical Simulation of the Buried Hill Reservoir in Bohai Bay
Authors: Tong Kai Jun , Su Yan Chun , Ge Li Zhen , Chen Jian Bo , Nie Ling Ling
Published: October 2013

Buried hill reservoir fracture description and reservoir simulation technology have been a hot research, but also is one of the key issues that restrict the efficient development of such reservoirs. Based on JZ buried hill reservoir which heterogeneity is strong, some wells water channeling fast and difficult to control the situation for fracture affect, a typical block of dual medium reservoir numerical models which was comprehensive variety of information, discrete fracture characterization and geological modeling is established. The fractured reservoir numerical model is simulated through Eclipse software to seek the law of remaining oil distribution. Through the reservoir geological reserves and production history matching, the remaining oil distribution of main production horizon is forecasted. On this basis, the results of different oilfield development adjustment programs are predicted by numerical simulation.
The Research on Distribution of the Remaining Oil in Heavy Oil Reservoir of BQ57
Authors: Zhang Ji Cheng , Lan Jin Yu , He Xiao Ru , Wei Jian Cheng
Published: October 2013

The BQ57 block is structurally located in the sag part of Biyang, the northern slopes. Reservoir is buried shallow, thickness thin and oil viscosity is high. With the old wells production factor decreasing, the remaining oil distribution is getting more and more complex, the block has a downward trend in production capacity. In this text, we longitudinally divided the BQ57 block into several emulation layers, horizontally divided into grids, established the block reservoir numerical model using the reservoir numerical simulation software, fit the daily fluid production, daily oil production, water cut, diurnal injection of this block, and the single well production history by adjusting the model parameter values, which the fitting error of each index were all within 2%[1,2]. On the basis of the results of numerical simulation, statistical analysis the remaining oil distribution and reserves abundance condition, clarify the regularities of distribution of the remaining oil, so that we can effectively produce the remaining oil, and it has an important significance for improving the recovery rate in oilfield.
Determination of Nitrate in Water by HPLC
Authors: Liu Jing , Ji Xiao Na , Ren Qing Kai , Ai Sheng Shu , Wan Li Jun , Bian De Jun
Published: October 2013

We established a method fordetermination of nitrate in water by High Performance Liquid Chromatography(HPLC). The sample was analysed by HPLC-ADA and was quantitated by externalstandard method after being simply processed. This methd has the advantages ofhigh separation efficiency and fast analysis. The experiment result showed thatthe linearly dependent coefficient was0.994, the recovery rate was between 98.7%～105.7%,the relative standard deviation（RSD）wasless than 2.1 %, and the lowest detectable limit is 0.01ng (S/N=1.6).
Recent Progress of Ecosystem Design Based on Digital Technology
Authors: Hu Xin Yue , Lyu Rui Min , Xuan Cui Xian
Published: October 2013

This paper reviews and demonstrates how to use digital technology to design the ecological environment. Through the analysis and summary of current research fields and status quo of eco-design, we explain the development of ecosystem design in life and building, and propose the key issues to be addressed, discuss the inadequacies of current research, and predict the next main research tendency of ecosystem design based on digital technology.
An Institutional Countermeasure to China's High Urban Housing Prices
Authors: Zhang Jin
Published: October 2013

The economic phenomenon of high urban housing prices in our country reflects asymmetry of rights and interests among government, real estate developers and buyers in essence, and behind this economic phenomenon imbedded financial crisis as well as political and social crisis. Regarding academic thought on the causes of high housing prices in the real estate market such as the theories of supply anddemand, cost, the system, and power imbalance between interest groups, this thesis proceeds institutional analysis, from the perspective of institutional economics, discusses the institutional causes of the persistent existence of four factors theories in the angle of vacancy of civil rights in the supply process of institution and rules, and puts forward policy suggestions of increasing effective supplies of institution in the system level.
Regional Synergetic Development: Strategic Thoughts on Exalting Urban Tourism Competitiveness for Jiangsu
Authors: Zhu Ye , Huang Zhen Fang
Published: October 2013

As the development of tourism industry and changes in tourism demand, the competition between area tourism industries has become more and more fierce. The synergetic development is very important in optimizing the industrial structure, upgrading the tourism industry level and promoting industrial transformation. This paper analyzes the relationship of synergy development and urban tourism competitiveness, and discusses the problems encountered during tourism integrating in Jiangsu. Based on the discussion, this paper also puts forward some suggestions for exalting urban tourism competitiveness.
Safety Statistical Analysis Based on Urban Rail Transit Operation
Authors: Wang Yan Hui , Jin Jun , Zhu Ling Xi , Qin Yong , Li Ping
Published: October 2013

Aiming at the characteristics of the safety of urban rail transit system operation, this paper adopts the comprehensive analysis and statistical chart included by the statistical analysis to process the data, which is based on the relevant data in accordance with Beijing Rail Traffic Control Center Statistics in 2012 and indicators of the station, line and road network, in addition, the trend and the indicator between horizontal and longitudinal contrast are also analyzed about stations, lines and the road network . The results can conclude the potential security risks information, such as, the maximum early peak average daily transfer of Xizhimen station, the maximum passenger traffic of Line1 ,the maximum passenger traffic of the road network up to July and August, and the largest proportion of signal failure. Finally, the laws can be find out, and the specific prevention measures can be put forward for the management, which has a certain significance for the reduction of accidents, and can give some theoretical guidance to urban rail transit operations managers.
The Analysis for New Energy Making Power Generation in China
Authors: Zhang Xi Rong , Li Qiu Yue
Published: October 2013

Speeding up developing and using the new energy is becoming the strategy, which can ensure the supplies of energy, but development of new energy has limit by many factors, such as resource, technology, policy and cost. This paper analysis all kinds of factors of new energy for power generation, according to factors to making some countermeasure and suggestion.
Cooperative Game Analysis on Regional Economic Development and Environmental Governance
Authors: Qi Ya Wei
Published: October 2013

This paper analyzes formation conditions of regional economic development and trans-boundary environmental pollution governance cooperation mechanism by building a cooperative game model and numerical calculation. Net utility of local governments is the difference between economic utility and trans-boundary pollution governance cost, and coalition help local government expand the increment of economic utility and conserve loss of environment utility. This paper use Shapley value method to allocate net utility rising from cooperation between local governments. When the utility of local governments participating in cooperation is greater compared to not participating in cooperation, local governments cooperate for regional economic development and environmental governance.
New Energy Development Situation and Prospect in Hainan Province
Authors: Yi Jun , Wei Hong
Published: October 2013

China's rapid economic development makes the demand for energy increases, the contradiction of conventional fossil energy shortage is increasingly prominent.New energy can not only help solve the shortage of fossil energy supply problems, but also will help China improve the energy structure,ensure energy security and environmental protection.
The Casual Relationship between Fossil Fuel Consumption and Real GDP Growth in China
Authors: Zhai Shen Hui , Liu Jian Qing , Yang Shu Yun
Published: October 2013

A modified version of the Granger causality test model, within the multivariate framework, proposed by Toda and Yamamoto (1995) was adopted to study the causality between the fossil fuel consumption and real GDP in China for the time period of 1978-2009. The empirical results demonstrated that there exists a negative bi-directional Granger causality between fossil fuel consumption and real GDP. The findings indicate that policies promoting energy conservation and reducing fossil fuel consumption may not necessarily be the obstructive factors to the economic growth in China.
Energy Consumption and Structural Reformation in Chinese Northeast Old Industrial Base
Authors: Liu Shao Bo
Published: October 2013

Using IPCC methodology, the carbon emissions of Chinese Northeast Old Industrial Base is calculated, and the energy's synthesized impact on carbon emissions intensity is presented. The resulting shows that the carbon emissions in the three northeast provinces decreased 52.87% from 2000 to 2010, of which, Liaoning, Jilin and Heilongjiang are individually 60.09%, 45.47% and 54.14% lower. The implications are that the energy structure is one of the main factors in carbon emission in the Old Industrial Base of Northeast China, and its industrial structure is changing greatly due to energy consumption carbon emission. To adjust optimally the energy and industrial structure, and to develop the energy technology to promote energy utilization are recommended.
Research on Industrial Integration between Electricity Industry and Natural Gas Industry
Authors: Meng Xiao Zhe
Published: October 2013

Industrial integration is the trend of the modern industrial economy. It is the result of the enterprises from competition to cooperation. Industry boundaries become blurring. And industries begin to integrate. With technological innovation, business integration, market integration, as well as industry regulation reform, electricity industry and natural gas industry is towards integration. The barriers between electricity industry and natural gas industry has been eliminated through knowledge sharing, mergers and acquisitions, market reform and regulation reform in developed countries. The energy industry in China will also be integration to improve national competitiveness.
The Short-Term Dynamic Relationship of China's Energy-Economy-Environment System
Authors: Zhang Lei , Guo Sen , Yang Kun , He Si Qi , Zhao Hui Ru
Published: October 2013

Energy is the foundation of economy for China. The economic growth depends on energy, but recent years, the carbon dioxide from energy consumption hinders the GDP to grow. Environment starts to affect economic growth and it becomes a restriction to energy consumption. Energy, economy and environment have formed a new system which is called 3E system, so its practical to study the dynamical relationships among the 3E system. This paper selects annual data from 1970 to 2009 to establish a VEC model and takes the impulse response function and variance analysis to analyze the short-term dynamical relationship of Chinas 3E system, finding that there is at least one co-integration relationship among 3E system in China. Finally, this paper discusses how the energy, economy, and environment affect each other in short term from a quantitative perspective and intends to provide some advices to draft applicable energy policy for China.
Impact Factor Estimation on Population Quality to Economic System in China Based on Structural Equation Modeling
Authors: Liu De Jun
Published: October 2013

Because of population quality and economic development is a comprehensive concept contains multiple indexes, according to the index system of the population quality promoting the economic development we build, this topic uses structural equation modeling (SEM) to estimate causal effect coefficient of Chinese population quality to economic development at different times.
On Features of Working Conditions of Gas Consumption and Research of Load Forecasting
Authors: Zhao Lei
Published: October 2013

The working conditions of gas consumption of different types of users are analyzed in this paper and four gas load forecasting approaches are introduced. Meanwhile, the gas load of Changchun city is forecasted through different approaches.
Case Study on Economic Evaluation of Biogas Project in Large-Scale Pig Farms
Authors: Ma Wen Lin , Li Xue Qin , Deng Bo Lin
Published: October 2013

A case of a biogas project built in a large-scale pig farm in Beijing was studied in this paper. The financial evaluation of its economic benefits was calculated by cost benefit analysis. The biogas project can bring about good environmental and social benefit. However, there is little economic attractive without financial subsidy for higher investment of biogas project. When the rate of financial subsidy from government on biogas project is above 73%, the recovery period of investment is shorter than 5 years. It makes a biogas project better economic attractive. The subsidy rate for biogas engineering case was up to 80%. Its recovery period was 4 years, and cumulative net profits 3.02 million RMB, which showed a strong economic attractive.
Study on Selecting Leading Industries for an Eco-Economic Zone Based on the AHP Method - An Example for Poyang Lake Eco-Economic Zone of China
Authors: Wu Han Bing , Hu Yu Hui , Wang Shu Li
Published: October 2013

A leading industry in a region refers to an industry that can drive industrial development and economic growth in the region. It is generally selected subject to qualitative and quantitative analysis. This paper uses Poyang Lake Eco-economic Zone as an example to propose modern agriculture, new industry, and eco-tourism as leading industries for Poyang Lake Eco-economic Zone based on the historical study in compliance with the following aspects: theories and principles of selecting a regionally leading industry; indicators such as comparative advantages, industry associations, regionally economic promotion, industrial development potential, technological improvement, and social benefits; AHP method as the key method; development trend of Poyang Lake Ecological Economic Zone; qualitative and quantitative selection of leading industries for Poyang Lake Eco-economic Zone.
Combinational Decolorization of Simulated Malachite Green Polluted Water by Plant and Microbe
Authors: Wang Zhong Quan , Wen Yan Mao
Published: October 2013

This article dealt with the synergistic effect of plant and microbe on malachite green decolorization. Plant (Canna generalis) and microbe (Pseudomonas aeruginosa) were adapted to culture in 20 mg.L-1malachite green solution alone or combined for 7 d or 14 d,after culture the residual concentration of the malachite green solution were determined. The results indicated thatP. aeruginosaused alone was useless to malachite green decolorization, whileC. generalisused alone removed 42.6%-53.2% of malachite green in 7 d-14 d culture, and the combined use ofC.generalisandP.aeruginosaremoved 60.4%-75.5% of malachite green.P.aeruginosaandC.generalishad synergistic effects on malachite decolorization. This research was benifited for the actual use of combinational remediation of malachite green by plant and microbe.
Low Carbon Ecology Campus Planning of Fenyang Medical College
Authors: Qin Liang , Zhao Jian Bin
Published: October 2013

With the environment increasingly worsening, global warming has become an environmental problem challenged around the world. The cognition of low carbon and environmental protection has been widely spread and applied in urban planning construction. Universities are the frontiers of scientific research. At university, such aspects like construction energy conservation and the use of new material have been put into practice, and under the guidance of planning, construction, management departments and others, the ideas of low carbon and ecology is promoted to build the campus with sustainable development. Universities play a leading role for all walks of life in society. The campus construction of Fenyang Medical College is taken as the turning point in the paper, research and analysis of the actual situation and the inevitable requirements of low-carbon and ecological campus construction is proposed in the paper.
Research on Risk Decision of Trading Emission Rights in Power Enterprises
Authors: Huo Xiao Jiang , Cheng Hao , Wan Yu Hong , Liu Zhong Jing , Luo Yun Feng
Published: October 2013

This paper explores the risk decision issue of the emission/right trading in power enterprises according to the various possible situations which may exist in the carbon trading system. Firstly, the emission environment is divided into three separate Cases and two combination (hybrid) Cases are virtualized. Secondly, the advantages and disadvantages for both the enterprises and the country are analyzed under the existing separate situation and the risk decision-making framework of the emission/right trading is established for the power generation companies. Finally, a trading risk decision model is constructed in the combination Cases by using the financial asset portfolio theory and the effective frontier for the model is given. The model is broad and simple in application scope. It has some theoretical meanings and practical values. And it provides the operational space for the risk decision of the power enterprises.
Research of College Students Entrepreneurship Education in Low-Carbon Economy Perspective
Authors: Sun Yun Long , Qi Xiao Xiao
Published: October 2013

As global warming intensifies,low-carbon economy is inevitable to global development.This paper is established on the theoretical basis and affecting factors of low-carbon economy to discuss the meaning of college students entrepreneurship education,research issues of college students entrepreneurship education in low-carbon economy perspective and propose corresponding countermeasures.
Research and Application of Intelligent Zero Discharge Treatment Technology for Substation Wastewater
Authors: Yan Ai Jun , Liu Lei , Cao Ying , Shen Wen Ning , Cao Mo , Feng La Jun
Published: October 2013

To solve problems associated with water pollution, as well as environmental disputes caused by discharge non-compliance, an intelligent zero discharge and integrated anti-corrosion design was used. This was based on a 330kV substation sewage treatment project. This design provides intelligence and zero discharge for the substation sewage treatment process. It also optimizes the use of technology to provide the economic benefits of a full life cycle. The design will provide notable environmental and economic benefits.
A Theoretical Analysis of Carbon Emission Trading System in China and the Perfection of its Rules and Regulations
Authors: Liu Mo Ru , Wang Hua Yu
Published: October 2013

The Carbon emission trading mechanism is an important tool to tackle climate change, promote low-carbon economic development, and facilitate ecological civilization construction. The Carbon emission trading system is set up based on the overall amount control. It controls the greenhouse gas emissions through the marketing mechanism, and reduces the cost of carbon emission control. Through theoretical analyses of the property rights of carbon emission right and the legal relationship of carbon emissions trading ,the theoretical basis for the carbon emissions trading mechanism is established. Currently, the measures to improve the carbon emissions trading mechanisms in China mainly consist of perfecting the trading platform, improving the marketing regulation system, promoting legislations of the total amount control of carbon emissions and the initial allocation of carbon emissions right so as to realize the optimal environmental capacity allocation of carbon emissions.
Study on the Influence of FDI on China's Green Innovation in Manufacturing System
Authors: Bi Ke Xin , Wang Yu Han , Yang Chao Jun
Published: October 2013

This paper, by using technology of structural equation model (SEM) of the PLS model, discussed the relationship between FDI and promoting green innovation capability of MGIS. The research finds that it has a positive effect on FDI inflows to green innovation resources of MGIS inputs, but FDI information inflows have an inhibitory effect on the manufacturing green innovation human resources. At the same time, green innovation resources of MGIS inputs also have a positive effect on the green innovation capability, but the green innovation resources has an inhibitory effect on the green R&D capability. This paper also finds that based on the intermediary role of innovation resources, FDI inflows have a significant positive influence on green R&D capability and green manufacturing capability, but they have inhibitory effect on the market development capability for green products.
Discussion on Practice Teaching Mode Based on the Engineering Project
Authors: Wu Na
Published: October 2013

For "Fundamentals of interchangeability and measurement technology " curriculum is not adapt to the cultivation of applied talents, the discussion on practice teaching mode based on the engineering project is proposed. The new practice teaching system is constructed by the reconstruction of practice teaching assessment methods, teaching method reform, improvement of the experiment content, diversity of evaluation way, excellent "Fundamentals of interchangeability and measurement technology " team building.The practice verified by transition to comprehensive, design, so as to develop students awareness of innovation, practical ability, and improve students' ability to analyze and solve problems, meet the social demand for comprehensive, applied talents.
Degradation of Landfill Leachate by Ultrasound/Ultraviolet - Aged Refuse Bioreactor Combined Process
Authors: Liu Bin , Peng Xu Ya , Zhao Hua , Tian Qi
Published: October 2013

The biodegradability of aged landfill leachate is low, and the treatment effects of common processes are very poor. This paper explored the effects of the Ultrasound/Ultraviolet - Aged Refuse Bioreactor combined process on aged landfill leachate. The main results were as follows: 1The optimum power of ultrasound was 100 W, and the optimum wavelength of ultraviolet was 254 nm. The removal rate of COD was 27.33% and the value of BOD/COD ratio was increased from 0.1 to 0.35 after the treatment of Ultrasound/Ultraviolet process. Therefore, the biodegradability of the leachate was improved, which might meet the demand of subsequent biological treatment. 2The COD removal rates of the two-stage series aged refuse bioreactor were both kept above 50% during the experiment and this process had a strong capacity of resistance to impact load. 3The COD removal rate of the combined process was over 80% as a whole without any pretreatment, and it has positive significance for the treatment of aged leachate.
Removal of Ammonia Nitrogen from Landfill Leachate by Ultrasound/Ultraviolet Process
Authors: Liu Bin , Peng Xu Ya , Tian Qi , Zhao Hua
Published: October 2013

Landfill leachate treatment is a major problem to be solved in the field of environmental protection, and ammonia nitrogen is one of the major pollutants in landfill leachate, whose processing technology needs further improvement. In this paper, ultrasound/ultraviolet co-oxidation technology was directly applied to the treatment of high concentration landfill leachate without the pretreatment operations of dilution, filter, and adjusting the pH conditions. The results showed that: ultrasonic and ultraviolet had certain effects on the ammonia nitrogen removal, and the ammonia nitrogen removing effects became better when the ultrasonic power was greater, or the ultraviolet wavelength was shorter. When the ultrasonic power was 100 W, the ammonia nitrogen removal efficiency was 25.2%, and the UV of 254 nm could decompose 20.2% of the ammonia nitrogen in landfill leathate. In the condition of aeration, ultrasonic and ultraviolet had good synergistic effect on leachate ammonia nitrogen treatment. When the ultrasonic power was 100 W, UV wavelength was 254 nm, and the aeration rate was 150 L/h, the ammonia removal efficiency of high concentration leachate (ammonia nitrogen concentration of 1800 mg/L) reached 98.5% after 6 hours. The paper's research results provide a useful reference for the removal of landfill leachate ammonia nitrogen.
Research of Organophosphorus Scale Inhibitors Treatment by Photoelectric Catalysis Oxidation Method
Authors: Zhao Jun , Tian Lei , Sun Mo Jie
Published: October 2013

Photoelectric catalysis oxidation process, which employs UV lamp as light source,TiO2 electrical as anode and Pt as cathode, has been used for degrading Organophosphorus scale inhibitors.The effects of additional electrical field intensity and pH of the solution on the removal rate of organophosphorus are investigated. The results show that the best additional voltage during the process of photo electrocatalysis is 8V, pH=8.0, and reaction time 10min, the organophosphorus removal rate of HEDP reaches 93.35%, the organophosphorus removal rate of PCAC reaches 96.0%.
Effect of CO/CH4 on Redox of Iron during NO Reduction by XRD/SEM
Authors: Su Ya Xin , Ren Li Ming , Deng Wen Yi
Published: October 2013

NO reduction by iron was conducted in a one-dimensional ceramic tubular reactor at 300 - 1100 °C with simulated flue gas of 0.05% NO in N2base. The evolution of metallic iron was investigated by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) methods. The effect of reducing gases including CO and CH4was analyzed on the redox of iron. Results showed that metallic iron was oxidized to its oxides after the reaction with NO. In N2atmosphere, Fe3O4was the major iron oxide at 550 °C and Fe2O3was the major iron oxide at 1100 °C. SEM image of the iron sample surface showed that the iron surface was smooth and dense after the iron reduced NO at 550 °C, however, the iron surface became porous after the iron reduced NO at 1100 °C. Reducing gas CO could reduce iron oxides to metallic iron. XRD result showed that a little FeO was found but metallic iron was still the dominant component of the iron sample after the reaction with NO in CO atmosphere. CO was not effective to maintain a durable NO reduction efficiency in simulated flue gas atmosphere while CH4was very effective. XRD result of the iron sample after the 100 hours durable test at 1050°C when 1.17% CH4was added into the simulated flue gas showed that the iron was not fully oxidized during the durable reaction.
COD and NH4-N Removal in Two-Stage Batch-Flow Constructed Wetland
Authors: Sun Hong Jie , Deng Xin Nan , Chen Rui
Published: October 2013

Research was conducted on pilot-scale, two-stage batch-flow constructed wetland systems for domestic wastewater treatment. Synthetic domestic wastewater was treated in a pre-acidification reactor with a hydraulic retention time (HRT) of 3 hours and the average removal rate of chemical oxygen demand (COD) and ammonia-nitrogen (NH4-N) reached 30% and 13.6%, respectively. The first-stage constructed wetland operated with up-flow and batch feed and drain. One cycle was 12h, including 6h feed and 6h drain. With HRT of 3 days, the effluent COD concentrations fluctuated from 32.5 mg/L to 103.4 mg/L, removal rates varied from 60% to 88%; effluent NH4-N concentrations were in the range of 4.8 mg/L to 10.8 mg/L, removal rates varied from 50% to 70%. The second-stage constructed wetland operated with down-flow, which one cycle was 24h, including 12h feed and 12h drain. With HRT of 1 day, effluent COD concentrations varied from 15.7 mg/L to 48.7 mg/L, removal averaged 53.2%; effluent NH4-N concentrations ranged from 0 mg/L to 0.4 mg/L, average removal exceeded 99%. The spatial variation of COD and NH4-N in the first-stage constructed wetland demonstrated that entrainment of air during draining of constructed wetland could strengthen the removal of COD and NH4-N. Temperature had no significant effect on COD degradation while obviously affected the removal of NH4-N.
The Study on the Performance of Wet Limestone-Gypsum Flue Gas Mercury Removal Additive
Authors: Yin Li Bao , Xu Qi Sheng , Hu Jiang Jun , Xiong Yang Heng , Chen Si Wei
Published: October 2013

The influences on the performance of wet flue gas desulfurization system in mercury removing after adding mercury removal additive were studied. As a consequence, the mercury removal efficiency can be improved by this kind of additive, that the efficiency of elemental mercury and total mercury is raised along with the amount of additive is increased. And so can the desulfuration efficiency. The oxidation of calcium sulfite in desulfurization is promoted by the mercury removal additive, increase the reduce speed of calcium sulfite concentration.
The Use of Fungi in Odorous Treatment—A Review
Authors: Luo Hai En , Yang Zuo Yi , Ning Xu Nan , Wang Yu Jie , Zhang Qi Hua
Published: October 2013

Most odorous compounds are toxic or hazardous for ecological environment and human health. Compare with the physical or chemical methods, the biological technologies can offer a cost effective and environment friendly alternative to odorous control. The microorganisms in the bioreactor were mainly the bacteria. But the removal efficient (RE) of pollutants by bacteria in the conditions of low moisture content and low pH seemed not so excellent. Recently, fungi were found that they could keep high activity and grew better in this condition than bacteria, and some characteristics of fungi were favor to the pollutions degradation, which showed the great potential to treat the hydrophobic compounds of the odors. Some scholars had paid their attentions in this field and did related researches. This review aimed to summarize the studies about the use of fungi in the odorous treatment and insight into the future research and development (R&D) needs of fungi in odorous control.
Acute Toxicological Effects of Suspended Solids on the Zooplankton
Authors: Zheng Lin , Cui Wen Lin , Song Wen Peng , Zhang Yan , Yuan Yuan
Published: October 2013

In this paper, the acute toxicity test was used to study the effects of different concentrations of suspended solids on the growth of zooplankton from Jiaozhou Bay. The experiment result showed that there had a significant impact of suspended solids on zooplankton growth and the mortality rate rose with the increasing concentration of suspended solids. The lethal concentration of 96h-LC50 was 60.172mg / L.
Low Temperature Hydrothermal Synthesis of 3D-MnO2 Nanostructures and their Catalytic Properties over MB
Authors: Li Si Liang , Guo Ya Jie , Pu Jing Juan
Published: October 2013

A novel three-dimensional MnO2 catalyst have been successfully prepared by a facile hydrothermal route. They were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In addition, they showed excellent catalytic activity over the aqueous degradation of methylene blue (MB).
Recovering High-Water Ti-Gypsum Using Thermo-Compression Drying Technology
Authors: Yuan Hao , Zhou Ming Yuan , Guan Jie , Fan Li , Ma Chang Wen , Ou Yang Zhao Hui
Published: October 2013

The paper elaborates on the operating principle and technical features of thermo-compression drying process, the kinetics involved in the dewatering process, and the technological process system and equipment used. It is demonstrated by the case of the treatment of Ti-Gypsum using the thermo-compression drying process that the moisture of the products can reach 30%.
Impacts of Coal Mining on Groundwater Environment in Northwestern Coal Mine Area
Authors: Wang Hao
Published: October 2013

By conducting field investigation and tests, such as groundwater pumping test and rock mechanics test, and building numerical models to simulate damage of coal mining to aquifers, it was proved that coal mining in some coal mine area caused impacts to groundwater environment, including impact on water cycle, the structure of aquifers, and groundwater flow field, as a result of which some water supply sources in coal mine area become unavailable. In addition, a couple of solutions are presented to mitigate the impacts.
Magnetic Nanoscaled Fe3O4 as an Efficient and Reusable Heterogeneous Catalyst for Degradation of Methyl Orange in Microwave-Enhanced Fenton-Like System
Authors: Bai Dong , Yan Peng
Published: October 2013

In this study, the Fe3O4magnetic nanoparticles (MNPs) were synthesized as heterogeneous catalysts to effectively degrade methyl orange. The coulping method of microwave irradiation and Fenton-like reaction was used for degradation of methyl orange waste water. The effects of Fe3O4dosage, initial H2O2concentration, catalyst cycles, reaction temperature and so on were assessed systematically. The experimental results showed that the microwave-assisted Fenton-like process using H2O2/Fe3O4was the most effective treatment process compared with other traditional methods. According to degradation of methyl orange, it has been found that the oxidation by Fenton-likes reagent is dependent on Fe3O4dosage, H2O2dosage, reaction temperature. The results indicate that under the optimal conditions, the removal rate of methyl orange could reach nearly 100%. Moreover, six cyclic tests for methyl orange degradation showed that the magnetic catalyst was very stable, recoverable, highly active, and easy to separate using an external magnet. Hence, the coulping method of microwave irradiation and Fenton-like reaction with magnetic nanomaterials of Fe3O4as the catalyst has potential use in organic pollutant removal.
Analysis Model on the Environmental Benefits of Hydropower
Authors: Zeng Yu , Qian Feng
Published: October 2013

A integrated environmental benefit analysis model is established based on China's hydropower installed capacity and power generation data from 2007 to 2012, by using the methods of cost-benefit method, emission reduction calculations and multi-attribute evaluation (MCDM).