bluuebunny/crossref_metadata_2025 huggingface dataset:
Green Resources, Environmental Technology Innovation and the Green Firm-Specific Advantage of High-Carbon Enterprises
Authors: Zhang Xiao Hong , Wang Yu Lu
Published: August 2013

This paper explains the mechanism that environmental technology innovation influences the green firm-specific advantage of high-carbon enterprises. The empirical analysis illustrates that green resources have a significant effect on the green firm-specific advantage of high-carbon enterprises, the relationship between green resources and green firm-specific advantage is partly mediated by environmental technology innovation, and the relationship between environmental technology innovation and green firm-specific advantage is partly mediated by environmental legitimacy.
Research on the Barriers and Strategies of IPRs for LCT Transfer
Authors: Ma Jun Jie , Chen Xiao Fen , Hong Shao Zhi
Published: August 2013

As the most effective methods in containing climate change and mitigating its consequences, the development and transfer of low carbon technologies (LCT) has aroused strong interest from developing countries particularly those with rapid economic growth. While there has always existed debate on the role of intellectual property rights (IPRs) in this process. The point of contention lies in whether IP will become the block, the evidence of which is reviewed briefly in this paper, furthermore, the obstacles that hinder the transfer and diffusion of LCT is also discussed in detail. Based on which, we bring forward the local adaption strategies for China according to the social and intellectual property environment, involving the following aspects such as modification of patent law, independent research of LCT, implement of compulsory license system, construction of patents pool, technical information services.
The Assessment and Reduction Approaches of the Carbon Emission in Jiangmen, China
Authors: Zhu Bang Zhu , Zhang Qiu Ju
Published: August 2013

Jiangmen in middle industrialization, in the high-speed economic development and at the same time energy consumption growing fast, are accompanied by a rise in Carbon dioxide emissions.In order to find out the main factors affecting the carbon emissions of Jiangmen, and reduce carbon emissions, this paper recommended 1990-2010 energy consumption carbon emissions of Jiangmen based on the method IPCC assessment . The ridge regression model based on the STIRPAT was set up to describe the environmental impact and the precise relationship between driving force. At last, some Suggestions were put forward : adjusting the industrial structure, changing the mode of economic growth, and the use of low carbon technology, building good real estate development of low carbon policy environment.
Assessment of the Trend of Albedo: A Case Study of Palermo
Authors: Franzitta Vincenzo , Viola Alessia , Trapanese Marco , Costanzo Silvia
Published: August 2013

In this paper we propose a case study of urban heat island applied to Palermo. The urban heat island (UHI) is the most studied of the climate effects of settlements. The UHI refers to the generally warm urban temperatures compared to those over surrounding, non-urban, areas. The aim of this paper is to find a connection among the average rise in temperature and the modification of albedo.
A Study on the Effect of Climate Change Initiative in Reducing Greenhouse Gas in Home Heating Sector in South Korea
Authors: Lee Kang Guk , Park Jong Cheon , Hong Won Hwa
Published: August 2013

This study is aimed at evaluating the effect of South Koreas climate change initiative in reducing greenhouse gases in home heating sector. The conclusions of the research are: (1) it is recommended to set targets for efficient energy consumption and reduction of energy use in the countrys home energy sector. (2) If the energy source unit in 2020 can be cut down to the level of 2000, the total greenhouse gas emission can be slashed down to a 57% level of what is originally projected. (3) Greenhouse gas emission coefficient per different use of energy source was proposed.
The Development on Production Mechanism and Influence Factors of CH4 Exchanging Flux from Grassland Ecosystem
Authors: Zhang Xiao Xin , Lv Shuai , Ding Jing , Yang Yu Lou , Liu Peng , Zhao Qing Shan , Duan Jun Jie , Mei Bao Ling
Published: August 2013

Global warming is a hot issue that we concern presently, and methane (CH4) should be paid more attention as the main contributor. Grassland ecosystem, as the important carbon sink plays an important role in global climate change. This paper summarizes the mechanism of CH4production and analyzes the environmental factors and management factors which affect CH4flux from grassland ecosystem.
The Influence of Grazing Intensity on Exchanging Fluxes of Nitrous Oxide, Methane and Carbon Dioxide from Grassland
Authors: Wang Hong Xia , Wang Li Xin , Zhao Qing Shan , Duan Jun Jie , Mei Bao Ling
Published: August 2013

Grassland ecosystem is the main part of terrestrial ecosystem. The variations of greenhouse gas (N2O, CH4 and CO2) exchanging fluxes from grassland can influence global greenhouse gases payments balance. And the main land use pattern of grassland is grazing. The grazing impacts on the exchanging fluxes of N2O, CH4 and CO2 from soil of grassland by influencing soil physical properties (such as soil moisture, temperature and porosity) of grassland. This paper analyzed the results of previous studies by the way of comparison, and we summarised that the grazing reduced CH4 uptake and N2O emissions of grassland, but which does not change the sources and sinks pattern of atmospheric greenhouse gases. However, the grazing significantly increased the emissions of CO2 from grassland.
Calculation of Global Warming Potential and Environmental Cost Depending on Recycling Option of Destruction Waste Wood
Authors: Cha Gi Wook , Hong Won Hwa , Shin Sung Woo
Published: August 2013

This study carried out the research on the relative influence of global warming consequent on recycling mode of wood waste from building dismantlement, and calculation of Environmental Cost (EC) in consideration of global warming. This study limited the recycling options to incineration and production of particle board, and conducted inventory analysis and worked out the relative influence of global warming according to individual recycling. In addition, this study calculated the EC in consideration of global warming on the basis of IPCC (Intergovernmental Panel on Climate Change) 2007 GWP(Global Warming Potential) 100a method, and EU's carbon trading price. As a result of research, GWP and EC by incineration were found to be about 4.28 times as high as particle board production.
Driving Factors Analysis of Carbon Dioxide Emissions in China Based on STIRPAT Model
Authors: Zhao Qiao Zhi , Yan Qing You
Published: August 2013

China is developing at relatively high speed, not only the regional development speed should be focused upon, but also the environmental impact of economic growth should be paid attention to, especially the level change of carbon dioxide emission. To some degree, quantity of carbon dioxide emission has become one of the most important indexes for measuring quality of a nations economic growth. Thus, this thesis is trying to analyze the driving relations between economic growth and carbon dioxide. Upon STIRPAT model, ridge regression method and elasticity theory are applied to analyze the influencing factors of carbon dioxide quantity such as the population quantity, Chinas urbanization process, per capita GDP, energy density and the percentage of the secondary industry. Correspondingly, based on the different influencing variables to carbon dioxide emission quantity, needy measures are brought out to control and decrease emissions. Feasible suggestions are trying to improve Chinas economic development quality.
On Establishment of Incentive Mechanism of Energy Conservation and Emission Reduction for Enterprises in Jilin Province
Authors: Lv Jin , Ma Jing , Liu Peng
Published: August 2013

In the modern society, enterprises role in the energy conservation and emissions reduction has been strengthened constantly and gradually becomes an important subject of energy conservation and emissions reduction. This paper makes a simple introduction of the related situation of enterprise energy conservation and emissions reduction in Jilin province, analyzes the incentive dynamics of energy conservation and emissions reduction in enterprises, taking industrial enterprises as example, selects the corresponding indicators, does a quantitative analysis, and then puts forward countermeasures and suggestions on establishment of incentive mechanism of energy conservation and emission reduction for enterprises in Jilin Province.
Research on Energy Saving and Emission Reduction Countermeasures for China's Logistics Industry
Authors: Zhang Di Ping , Hua Xue Yang
Published: August 2013

Based on the analysis of major problems on energy saving and emission reduction for Chinas logistics industry, this paper proposes the strategic objectives and strategic focus to energy saving and emission reduction of the logistics industry, and discusses possible ways for the achievement of energy saving and emission reduction in the logistics industry from multiple aspects. It also proposes key policies and regulations to the transition of logistics industry to low-carbonization from aspects of low-carbon energy policy, low-carbon technology policy and low-carbon industrial policy, thus to build the multi-cooperated low-carbon economic governance structure by government, enterprises and public.
Research on Land Use Carbon Emissions Empirical in Guangdong Province
Authors: Yu Yang , Du Cui , Xu Xian Lei , Hu Chen Cheng , Zeng Ji Yong , Li En Lai , Miao Hui Ling , Liu Kun Kun
Published: August 2013

Based on the land use and land cover changes from 1995 to 2010, the relationship of land use and carbon emissions was estimated, using existing calculate model Change of land use-carbon emissions. The carbon emissions caused by farmland, forest, garden plot, and construction land were estimated, furthermore, the influence of carbon emission was revealed. Finally, the problems that facing G.D. province in the view of carbon reduction was analyzed, and several suggestions was brought out.
State of the Art in Low Carbon Community Development
Authors: Lv Yue Xia , Sun Liang , Xu Chong Qing , Guo Dong Yan
Published: August 2013

The global warming and energy crisis have attracted great attentions of the whole world in recent years. Low-carbon community has been accordingly proposed to reduce global greenhouse gas emissions and accelerate a prosperous low carbon economy. In this paper, the theoretical and conceptual analysis of various low carbon related concepts, including low carbon community, were summarized. The development planning of low carbon community in developed countries and their corresponding practices were reviewed. Current status in development of low carbon community in China was also thoroughly discussed.
Study on the Carbon Balance Trading under the Framework of Ecological Compensation
Authors: Yin Qing Min , Liu Jin Hua
Published: August 2013

This article investigates the improvement and supplement of carbon balance trading under the framework of ecological compensation from three angles: different set of ecological compensation problem from the resource space, environmental finance market and market incentives of technology innovation, concluding that market-oriented environmental resource allocation has higher efficiency and superiority. At the same time, establishment and efficient operation of the carbon balance market needs strong government support, and the government initial definition of property rights is crucial. At last, the paper puts forward measures and suggestions of carbon market transaction.
Synergetic Abatement of Carbon Emissions and Air Pollution in China
Authors: Mi Hong , Zhou Wei , Yu Xiao Feng , Feng Ning
Published: August 2013

China needs to deal with climate change and air pollution. Both of them result from burning of fossil fuel. The Possible-Satisfiablity model is used to calculate optimum carbon emissions restrained by climate change and air pollution. The highest coordinate is (17.33, 0.41) in the P-S degree curves calculated under the restriction of climate change; while the highest coordinate is (10.84, 0.33) in the P-S degree curves under the restriction of environment. Environmental restriction on energy consumption and CO2 emissions is much stricter than the restriction of climate change.
The Comparative Study of China's Low Carbon Pilot Provinces CO2 Emission Characteristics and Influence Factors
Authors: Zhang Hong Wu , Zhang Su Yuan , Shi Lin Yun
Published: August 2013

The development of China 's low carbon economic needs to be based around characteristics of various regions and take some targeted measures, so we need to understand the characteristics of the CO2 emissions and the driving force of the influence factors. In this paper, the author based on the calculated basic data to analyze on China's low carbon pilot provincess CO2 emission characteristics and use Kaya model to decompose the factors influencing the size and driving forces. The results show that Tianjins type is high emission and high efficiency, Guangdongs type is low emission and high efficiency, Liaonings type is high emission and low efficiency, Chongqings type is moderate emission and moderate efficiency, Hubeis type is moderate emission and low efficiency, Shanxi and Yunnans type are low emission and low efficiency. The revelation we get from the result is the CO2 strength reduction in various provinces has great potential, accordingly, we put forward different countermeasures for different regions.
The Impact on Carbon Emissions of Xinjiang's Population Structure
Authors: Guo Ying Ying , Ma Xiao Yu , Tu Er Gong A Di Li
Published: August 2013

In this paper, through 1995-2010 data, it studies population size of Xinjiang, population urbanization and population industrial structure, which have some degree impact on carbon emissions. Through empirical analysis suggests that the size of the population curbs carbon emissions, urbanization and industrial structure have a positive relationship with carbon emissions. Finally, the resource-rich Xinjiang, the paper puts forward corresponding energy saving policy.
The Construction of Evaluation Index System on China`s "Two-Oriented Society" and Empirical Study
Authors: Ma Yu Lin , Zhao Yuan , Li Xia
Published: August 2013

This paper has set an evaluation index system for "two-oriented society", which was divided into four levels. The factor analysis was adopted to find out the public factors of input indexes and output indexes about conserving resources and environment, then the scores of all public factors were calculated, and the construction conditions of our nearly 10 years "two-oriented society" were evaluated by using the data envelopment analysis. The conclusion was that the construction conditions of Chinas "two-oriented society" showed a rising trend which was at the expense of the coordinative development of the subsystems. At last, some suggestions were put forward.
The Analysis on the Evolution of Depositional Sequence in the Mid-Depth Formation under the Control of the Medium-Long Base-Level Change in Huanghekou Depression
Authors: Zhao Chun Chen , Liu Hao , Ju Yong Tao
Published: August 2013

The time and space evolution of sequence architecture and depositional systems has attracted much attention in the geological field. Meanwhile, due to the recent excellence, the Oligocene lacustrine rift basin takes a key position during geological research in Huanghekou depression of Bohai Bay Basin in east China. However, the systematic researches of the depositional sequence of Dongying formation in Huanghekou depression appear little, thus this study aims that using many seismic lines, complemented by well logs and cores to thoroughly analyze the time and space allocation of depositional sequence of Huanghekou depression and its major controlling factor, base-level change, in a typical rift lacustrine basin. The Oligocene Dongying formation in this article will be divided into three composite sequences on the basis of unconformities on basin margins and correlative conformities in the basin center. Every sequence is composed of a regional depositional cycle from transgression with an onlapping lacustrine expanding systems tract (EST) to regression with a prograding highstand systems tract (HST). And five sequences can be further identified by subordinate discontinuous boundaries in Huanghekou depression. The evolution of depositional systems is associated with base-level change within sequences. In Lower and Middle Dongying formation (ESTSQ3, HSTSQ3, ESTSQ2), depositional systems are dominated by braid river delta and sandy beach-bars. During the late period of Dongying formation (HSTSQ2, SQ1), depositional systems are characterized by meandering river delta or braid river delta deposits. And base-level change is one of major controlling factors, of which the shape and scale control the development of the depositional sequences. Base-level changes, via affecting the A/S, directly control the depositional states and determine the unique depositional sequences structure: in the northern steep slope, multiple meandering river deltas systems exist. In the middle of the depression, the large areas of beach bars can be found. And the depositional system is continuously developed with the large-scale braided river delta in the southern gentle slope.
Low Carbon Development Research on Coal Enterprise - Xinwen Group as an Example
Authors: Li Gao Bo
Published: August 2013

Low carbon economy provides the direction for the sustainable development of the coal industry, but how to measure low carbon economic development level of the coal enterprise has become social concern. Based on the Xinwen group as an example, the paper constructs level evaluation index system of low carbon economic development about the coal enterprise from the present situation of the development of low carbon economy. Using AHP and fuzzy comprehensive evaluation method measure low carbon development level, and the conclusion is that the Xinwen group's low carbon development level is good.
Low-Carbon Economy: Essential Route of Sustainable Development of Shaanxi Economy
Authors: Bu Wen Hui , Chen De Sheng
Published: August 2013

In the development of low-carbon economy, Shaanxi Province in many respects, such as the energy structure, level of social economic development and capital and technology are facing a series of challenges. But, in the meantime, in other respects, such as reductions in carbon emissions space, advantage of backwardness and rich natural resources etc, Shaanxi has the opportunity of developing low-carbon economy. Accordingly, Shaanxi should develop low carbon economy from the following aspects: optimize energy structure, vigorously promote energy conservation, low carbon technology, developing the tertiary industry and playing the advantage of solar and wind energy.
Promote Low-Carbon Economic Development by Implementing Low-Carbon Marketing
Authors: Shi Hao Hui , Wang Guo Ju , Wu Zhi Qing
Published: August 2013

it is an urgent task for all the global countries to develop low-carbon economy, and it requires the participation of enterprises. Enterprises should take a broad and long-term view on the new marketing concept to seize the opportunity by implementing low-carbon marketing and establishing low-carbon marketing concept. As long as more and more enterprises in China engage in low-carbon marketing, the low-carbon economy of this country is more likely to flourish. In the future marketing competition, the simple 4P concept will increasingly be challenged by the concept of low-carbon marketing. The present study is to work out some concrete proposals for carrying out low-carbon marketing by enterprises.
Research on Reverse Logistics System of Energy-Intensive Industry Based on Circular Economy
Authors: Zheng Ji Liang , Zeng Rong
Published: August 2013

Reverse logistics is becoming more important in overall industry area owing to the environmental and economic factors. Planning and building a reasonable reverse logistics system could bring more profit, customer satisfaction and a nice social picture for companies. The energy-intensive industry is an important part of Chinas industry. We try to construct a reverse logistics system of the energy-intensive industries with the perspective of circular economy in this paper, which aims to reduce resources consumption and environmental pollution, and to promote economical, social and ecological environment development.
Study of System Dynamics on the Equilibrium Development of Ecological and Economic System in Ordos of Inner Mongolia in China
Authors: Ke Wen Lan , Sha Jing Hua , Zhang Guo Feng , Yan Jing Jing
Published: August 2013

An overview on the current situation of economic, resource and environmental system in Ordos city shows that there exist some problems, such as wealth gap, irrational industrial structure, pressures on resources exploitation and environmental pollution. The economic development in Ordos depends on coal resource while the exploitation results in water shortage and environmental pollution. In order to realize the sustainable development of ecological economic system, a system dynamics model, which coordinates the subsystems of economy, resources and environment, is constructed and resource utilization efficiency, environmental protection and economical development are considered as systemic parameters to forecast the development trend of Ordos. Then, sustainability of four development modes are compared via setting its control parameters together with a introduced resource-environment loss rate. Finally, we make a conclusion that the Harmonious development-oriented mode makes the GDP growing moderately and the economic losses of resources and environment destruction are under control and the losses decrease gradually, realizing the benign balance between the economic benefit and ecological benefit.
Study on Low-Carbon Development to Transform and Improve Electric Power Industry in Shandong Province
Authors: Miao Pan
Published: August 2013

The electric power industry is the energy basic industry of the country, which serves the development of the national economy, but also consumes a lot of energy, and causes heavy pollution to the ecological environment. This paper made investigation on low-carbon development status of the power industry in Shandong Province, identify the problems, and pertinently bring forward countermeasures of low-carbon development of electric power industry in Shandong Province.
Research on the Relation between Corporate Social Responsibility Practice and Financial Performance under the Low Carbon Economy — From the Case Analysis of CNPC
Authors: Wang Hong , Xie Deng Hui , Chen Qi Jie
Published: August 2013

This thesis is focused on the relationship between the low-carbon performance indicator and financial performance indicator of the oil enterprise with social responsibility from the case of the CNPC. In the short run, the role of environment protection assumed by the oil enterprise will cause the extra cost and subsequent lower financial performance. After the correlation analysis of CSR report of CNPC from 2006 to 2011, the result shows that taking social responsibility, developing low-carbon economy, improving the efficiency of energy utilization and cleaning the energy structure will bring positive influence on the enterprise financial performance. Therefore, in the long run, there is a significant correlation between the low-carbon performance indicator and financial performance.
Algorithm and Simulation of Chinese Traditional Industrial Clusters Low Carbon Evolution Based on Evolutionary Games Theory on Complex Networks
Authors: Fan Ru Guo , Zhang Hong Juan , Zhang Peng Fei
Published: August 2013

Industrial clusters are complex networks formed by numerous agents who continuously imitate, learn from each other and make optimal choice accordingly. The paper uses random learning game and multi-agent system models to construct a Chinese traditional industrial clusters low carbon evolution model and introduce an algorithm based on the network external effect and characteristics of agents adaptive behavior. Then the simulation of low-carbon competition, emergence and evolution was conducted, which produced some valuable conclusions.
Study on Development Status and Countermeasures of Low-Carbon Tourism in Heilongjiang Province
Authors: Tang Zi
Published: August 2013

Low-carbon tourism is a new tourism form under the background of low-carbon economy. The development of the tourism industry of Heilongjiang Province is very rapidly. From the view of low-carbon economy, this paper analyzed the development advantage and development status of low-carbon tourism in Heilongjiang Province, and put forward some countermeasures of low-carbon tourism in Heilongjiang Province. The result helps to the healthy and sustainable development of tourism industry of Heilongjiang Province.
Synthesis and Antioxidant Activity of Carboxymethyl Chitosan-Selenium
Authors: Jin Li Ming , Geng Ning , Quan Chun Shan , Fan Sheng Di
Published: August 2013

The objective of this study was to synthesize a new organic selenium compound, carboxymethyl chitosan-selenium (CMCTS-Se), and evaluate its antioxidant abilities on hydroxyl radicals and superoxide radicals. Sodium selenite and carboxymethyl chitosan (CMCTS) were used to prepare CMCTS-Se. It was characterized by ultraviolet (UV) and infrared (IR) techniques. The results proved the successful synthesis of CMCTS-Se. The yield was 44.78% and the content of selenium (Se) was 20.50mg/g determined by colorimetry at 420nm using 3.3-diaminobenzidine as color-produced reagent. The antioxidant activities on hydroxyl radicals and super oxide radicals of CMCTS-Se were investigated. The results showed that antioxidant activities were concentration related in the setting concentration range and the antioxidant effects of CMCTS-Se were totally better than that of CMCTS. The scavenging rates on hydroxyl radicals and superoxide radicals of 2.0mg/mL CMCTS-Se were 68.25% and 62.15%, respectively. VC, a well-known antioxidant, as a standard in our assay, showed a little higher antioxidant activity than CMCTS-Se. This research provides a possible application of CMCTS-Se as a low toxic and effective organic Se-enriched healthy product.
Numerical Simulation of Thermal Sensitivity for Explosives
Authors: Zhang Xiang Rong , Dan Xu , Zhou Lin
Published: August 2013

In order to compare the thermal sensitivity of several typical explosives, this article solved numerically one-dimensional transient heat conduction equation including thermal decomposition for explosives with finite difference method. The explicit difference equations under different boundary conditions were established, and the corresponding stability criterion was derived. The ignition times for typical explosives were calculated, which was used to evaluate thermal sensitivity of explosives.
Synthesis of Dimethyl Carbonate from Carbon Dioxide, Propylene Epoxide and Methanol
Authors: Fang Tao , Liao Chong Jing , Duan Zhen Xiao , Fan Guo Zhi
Published: August 2013

Dimethyl carbonate (DMC) was synthesized from carbon dioxide, propylene epoxide (PO) and methanol. The catalytic performance of K2CO3, KI, rare earth oxides including CeO2, Y2O3, La2O3 and Yb2O3 was investigated. Acceptable conversion of PO but poor selectivity to DMC was obtained using K2CO3 or KI as the sole catalyst compared to that obtained in the presence of rare earth oxides. Significant improvement in the selectivity to DMC was obtained catalyzed by co-catalyst composed of K2CO3 and Yb2O3, and 42.4% selectivity to DMC, which is higher than that obtained using K2CO3 or Yb2O3 as the sole catalyst under the identical conditions, was obtained. The influence of the amount of PO was also investigated, and the results showed that the conversion of PO is dependent on its amount.
Study on the Elemental Analysis and Relative Molecular Weight of 5U Rock Asphalt
Authors: Li Jing , Zhang Xiao Ning , Liu Yu , Wu Chuan Hai
Published: August 2013

Matrix asphalt, rock asphalt and three different content of rock asphalt modified bitumen content were tested based on the elemental analysis,E-M-D method was used to analyze H/C and aromatic-carbon ratio. The result showed: organic matter content in the 5U rock asphalt by elemental analysis was extremely consistent with of rock asphalt with trichloroethylene measured,after adding 5U Rock Asphalt,the aromatic-carbon ratio of asphalt was Improved.
Preparation and Characterization of KGM/PVA Composite Nanofibrous Membranes
Authors: Du Xin Chen , Lin Xiao Yan , Huang Yuan Hao , Li Ying , Luo Xue Gang
Published: August 2013

A composite membrane of KGM/PVA was prepared by electrospinning process. KGM and PVA were dissolved in water and acetic acid (volum:6/4) with different concentration and the resulting blend sol was electrospun into the composite nanofibrous membranes. The influence of technical parameters on morphology and diameter of nanofibers was investigated by Scanning Electron Microscope (SEM). The results show that the concentration of KGM/PVA blend sol affects significantly on the fiber diameter and the morphology of composite membranes, and the increase of the voltage results in the decrease of the fiber diameter. The composite nanofibrous membranes with the average fiber diameter ranging from 87.5nm to 165.6nm were fabricated by electrospinning at the following conditions: 10% (w/v) of the concentration of KGM/PVA blend sol (weight ratio of KGM to PVA=4/6), 25KV of electric voltage, 0.0025mm s-1 of the feeding rate, 45°C of the electrospinning temperature and 16cm of receiving distance.
Photocatalytic Decomposition of Methylene Blue with Lanthanum Doping TiO2 under Visible Light Irradiation
Authors: Cao Guang Xiu , Zhang Zhong Hou , Zhai Bin
Published: August 2013

Lanthanum doped TiO2 powders were prepared by hydrolysis of titanium tetra-n-butyl oxide and La (NO3)3 in solution. The resulting powders were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis absorption spectroscopy. The photocatalytic activities of doped samples were evaluated by the decomposition of methylene blue under visible light irradiation. The XRD results showed that the doping of lanthanum could not only efficiently inhibit the grain growth but also suppress the phase transition of anatase to rutile. UV-Vis spectroscopy of lanthanum doping TiO2 indicated that the absorption onset red-shifted to the visible light region. XPS results revealed that La2O3 had formed which could enhance the surface area. The degradation rates of methylene blue verified that the visible light photocatalytic activity of TiO2 has been enhanced by the doping of lanthanum.
Preparation of PVB/ β-CD/Silica Nanofibers Using Electrospinning Techniques
Authors: Ma Xiu Ling , Wu Zhen Yue , Chen Zhen , Chen Sheng
Published: August 2013

The PVB/ β-CD/silica nanofiber in the ratio of β-CD:PVB=1:3 and doping 5% nanosilica was fabricated by electrospinning techniques at 18 kV of the applied voltage. The morphologies and structures of PVB/β-CD/silica nanofibers were investigated by scanning electron microscopy (SEM), Fourier transform infrared spectrometer (FTIR), energy dispersive spectrometer (EDS). Chimb-shaped PVB/β-CD composite nanofiber was observed by SEM. The FTIR results showed that β-CD is present in PVB fiber matrix. EDS analyses of PVB/β-CD and PVB/β-CD/ silica nanofibers reveal the presence of Si in PVB/β-CD/ silica nanofiber.
Synthesis and Catalysis of Fe3O4 Nanoparticles for Degradation of Rhodamine B
Authors: Wang Guang Hua , Chen Kun , Li Wen Bing , Wan Dong , Hu Qin , Lu Lu Lu
Published: August 2013

Fe3O4 nanoparticles (Fe3O4 NPs) were successfully prepared via chemical co-precipitation method under the assistance of ultrasound irradiation and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). a series of experiments were carried out to investigate the degradation of Rhodamine B(RhB) by the obtained heterogeneous Fe3O4 catalysts in the presence of H2O2. The effects of catalyst loading,initial pH, reaction temperature, oxidant concentration were discussed. The result indicated that the optimal conditions were Fe3O4 NPs dosage 0.7 g/L, initial pH=3.0, reaction temperature 60°C, oxidant concentration 20 mmol /L.
Inhibition of Corrosion and Scale Formation in Oilfield Produced Water Recycling System
Authors: Zhang Jiang Wei , Li Gang , Liu Yu
Published: August 2013

Due to the characteristics of the oilfield produced water, there are serious problems of corrosion and scale formation in the water recycling process. A compound inhibitor consists of organophosphine inhibitors and zinc sulfate, was applied to prevent corrosion and scale formation. The corrosion rate and scale inhibition efficiency were studied in artificial supersaturated solutions through weight loss measurements and static jar tests at 95°C, respectively. The results showed that the compound inhibitor had lower corrosion rate (0.021 mm/a) and higher scale inhibition efficiency (97.34 %). The result of industrial pilot test verified the compound inhibitor has an excellent efficiency at oilfield. All results show that the compound inhibitor can solve corrosion and scale formation in oilfield produced water recycling system.
A Review on the Use of Chitosan and its Derivatives as Radical Scavenger and Metal Ions Chelating Agent
Authors: Dou Hong Yan , Chen Xiao Qian , Li Zong Quan
Published: August 2013

Chitosan has unique properties among biopolymers, especially due to the presence of several reactive groups, such as OH and NH2, which can react with many compounds. Chitosan and its derivatives are able to chelate metal ions, eliminate free radicals and resist oxidation. The development of chitosan and its derivatives used as metal ions chelating agent and free radical scavenger was overviewed. In addition, the application of chitosan and its derivatives and their potentiality in paper industry was prospected.
Research on the Influence of the Tension on Dielectric Strength of the Unidirectional Direction Glass Fiber Reinforced Composites
Authors: Tian Fang , Xing Su Li , Luo Ying She
Published: August 2013

Based on the experimental measurements of materials dielectric strength, this paper is focused on the relationships between dielectric strength of the materials and tensile stress applied on them. The experimental results indicated that the dielectric strengths of the unsaturated polyester resin and the unidirectional glass fiber reinforced composites had an obvious decrease compared with the samples without of it. Furthermore, the dielectric strength decreased with the increase of tensile stress. When tensile stress reached 50% of the material tensile strength, the dielectric strength of the resin decreased 13.36%, and the unidirectional glass fiber reinforced unsaturated polyester composites decreased 19.86% with the tensile stress in the longitudinal direction and 12.06% in the transverse direction. When the experimental samples were broken down by electricity, cracks and pores which would lead to stress concentration were created between the electrodes around the breaking-down point. In a word, it is vital to make a research about the effect of stress on the insulating properties of materials.
Comprehensive Utilization of Resources of Titanium Dioxide at Home and Abroad
Authors: Chen Kun , Xu Ben Jun , Huang Cai Juan , Xu Yu
Published: August 2013

The Properties of fly ash is introduced and the harm for environment is evaluated,the utilization of fly ash in agriculture ,industry and environmental protections are summarized.
Effect of CaCO3 Particle Size and Size Distribution on Rheological and Mechanical Properties of Polyethylene
Authors: Qi Fang Wei , Luo Xue Gang , Lin Xiao Yan , Zhang Si Zhao
Published: August 2013

In this article, calcium carbonate filled linear low density polyethylene (LLDPE) was prepared and the influences of particle size and size distribution on the rheological and mechanical properties of the composites were investigated. The results showed that the glass transition and thermal decomposition temperatures of LLDPE phase in LLDPE/CaCO3 composites were shifted toward higher temperatures by the restriction of CaCO3 particles on the segmental and long-range chain mobility of the LLDPE phase. The composites showed shear thinning behaviors and the viscosity decreased with the rational size and size distribution. Additionally, the elongation at break notably improved to some extent.
Effect of Oxygen Partial Pressure on Formation of Fe2O3 Nanostructure during Thermal Oxidation
Authors: Wang Jing Zhe , Xu C.H. , You Yu Fei , Wang Jun Peng
Published: August 2013

In this paper, effect of oxygen partial pressure on formation of Fe2O3 nanostructure during Thermal Oxidation was studied. Fe2O3 nanostructure was formed by controlling oxidation conditions (Po2) and using the method of thermal oxidation. To begin with, a piece of pure iron in a ceramic crucible was put in the tube furnace (SYS-G-Z-13). Next the metallic Fe was oxidized at 500°C for 4 hours, under different oxygen partial pressure including pure argon (Po2 = 0atm), air Po2 = 0.21atm) and pure oxygen (Po2 = 1atm) to produce nanostructure, respectively. The surface morphology of the oxidized specimens was observed by SEM. The crystalline structure of the nanostructure was determined by transmission electron microscope. The experimental results show that the density of nanosheets increases with increasing oxygen partial pressure.
Efficient Organe Organic Light-Emitting Devices Using N-arylbenzinmidzoles as Blocking Layer
Authors: Yang Hui Shan , Wu Li Shuang
Published: August 2013

A orange organic light-emitting device has been fabricated with a structure of ITO/m-MTDATA (45 nm)/NPB (8 nm)/ DPVBi:DCJTB 0.5 % (15 nm)/TPBi (x nm)/Alq3 [(60-x) n /LiF (1 nm)/Al£¬where x=0, 4, 7 and 10, respectively. N-arylbenzinmidzoles (TPBi) was used as the excton-blocking layer resulting mixture of lights from DPVBi molecules (blue-light) and DCJTB (yellow-light) molecules, thereby producing orange light emission. The performance of device can be readily adjusted by only varying the thickness of the TPBi layer. The Commission Internationale de 1'Eclairage (CIE) coordinates of the device are largely insensitive to diffrent of the driving voltages. When the thickness of TPBi is 7 nm, the device exhibits peak efficiency of 6.16 cd/A at the applied voltage of 8 V, and the maximum brightness is 43310 cd/m2 at 15 V, respectively.
Impact of Rheological Properties of Fiber Asphalt Mortar on Mixture Road Performance
Authors: Guo De Dong
Published: August 2013

Fiber asphalt concrete has been more and more widely used in highway construction. For analyzing high and low temperature performance of fiber asphalt mixture, rheological properties of fiber asphalt mortar were studied through indoor test. Impact of Rheological properties of the fiber asphalt mortar on high temperature and low temperature properties of asphalt mixture was analyzed. Results showed that the larger fiber content was, the better performance of asphalt mixture's high temperature stability, fiber asphalt mortar rut factor and rutting tests results of asphalt mixture were linear correlation, reflecting the high temperature performance of asphalt mixture; With the increase of fiber content, variation of stiffness modulus, creep rate indicators and mixture low temperature performance was consistent, and rheological properties of fiber asphalt mortar could characterize low temperature performance of asphalt mixture.
Loading of HgS Nanoparticles on the Silica Microspheres
Authors: Kang Shi Zhao , Yang Yi Kai , Li Xiang Qing , Mu Jin
Published: August 2013

HgS nanoparticles were loaded on the silica microspheres by an improved layer-by-layer self-assembled technique following low temperature heat-treatment. The optical properties of HgS nanoparticles on the silica microspheres were characterized with UV-vis and fluorescence spectra. The results suggested that the HgS nanoparticles were formed on the silica microspheres, and the average size of particles was approximately 15 nm. The direct band gap of the loaded HgS nanoparticles was calculated to be 2.4 eV from the absorption spectrum, which was blue-shifted by 0.4 eV from its bulk value due to quantum size effect. The photoluminescence showed a broad emission around 440 nm from sulfur vacancies. These results indicate that the optical properties of HgS nanoparticles loaded on the silica microspheres are similar to those of free HgS nanoparticles, which is encouraging for potential applications.
Numerical Study of Dynamic Crack of 1D Hexagonal and 3D Icosahedral Quasicrystals
Authors: Du Li Ping , Xu Xiu Juan , Tan Yi Li
Published: August 2013

According to a new version of equations of elasodynamics of quasicrystals suggested by Ref, a finite difference method of the anti-plane elastic dynamic equations of 1D hexagonal and 3D icosahedral quasicrystals is developed. Further the dynamic behaviour of the material with a model III crack under impact loading is given.The results show dynamic stress intensity factor of the crack tip, in which the similar and different features with conventional materials are discussed, especially the phonon,phason and phonon-phason coupling effects are explored.
Research of Anti-Corrosion of Armour Steel in Surface Chromate Conversion Coating
Authors: Guo Rui Hua , Liu Fang Sheng , Wang Lin Min
Published: August 2013

This article by orthogonal experimental method to determine the composition of chromate conversion and use of electrochemical method of electrochemical corrosion of the film discussed the substrate in different components, content, time and pH of chromate conversion coating of corrosion resistance. Orthogonal to determine the best experimental chromate conversion solution by adding the rare earth element cerium and lanthanum salt, and discuss the effects of rare earth elements cerium and lanthanum chromate conversion film on the anti-corrosion. The results show that in CrO3 5.4 g/L, NaF 0.5 g/L, K3Fe (CN)6 0.5 g/L, pH 1, conversion time is three minutes, there is a better corrosion resistance. The rare earth elements in a chromate conversion solution, La2(CO3)3 to 0.2 g/L chromate conversion coating of the anti-corrosion better.
Research of Nano-TiO2 Composites on Malachite Green Decolorizing Effect
Authors: Gao Ru Qin , Huang Dou Dou , Wang Zi Kuo
Published: August 2013

A supporting body of diatomite-based porous ceramics was prepared by a solid-phase sintering process and low-temperature calcination process. nanoTiO2 membrane was loaded on the carrier by the hydrolysis precipitation method and using TiCl4 as the precursor. The influences of various parameters such as the initial concentration of malachite green, the amount of composites, and the initial pH had been investigated. Under the same test conditions, the decolorizing rate of malachite green was higher when the initial concentration was 6 mg/L, the composites dosage was 5 g/L, and the initial pH was 8 respectively. The influence mechanism of the initial concentration of malachite green, the amount of composites, and the initial pH for malachite green was discussed.
Study on Corrosion Resistance and Mechanical Property of Welding HAZ Treated by Laser Surface Remelting
Authors: Li Yan Li , Qi Jia Rui , Zhang Dan Feng , Liu Ji , Li Chao
Published: August 2013

Welding is a main joint way of the alloy constructional steel. However, the welding HAZ is very sensitive to corrosion. In order to increase the corrosion resistance of the welding HAZ without reducing mechanical property of the parts simultaneously, the laser surface remelting was used to treat the welding HAZ in this study. According to the results of the orthogonal test, the optimized processing parameters were obtained. Based on the electrochemical analysis, the corrosion current of 30CrMnSi welding HAZ can be decreased by laser remelting technology. The corrosion resistance of the HAZ can be improved effectively. At the same time, the mechanical property of the treated welding HAZ was better compared with the untreated.
Study on the Enhanced Visible Photocatalysis Activity in Transition Metal Doped ZnS
Authors: Guan Li , Wu Ai Ling , Gu Ting Kun , Yu Wei Wei
Published: August 2013

The electronic structure and optical properties of pristine and Pd-doped or Ag-doped zinc blende ZnS were calculated with the ab-initio ultrasoft pseudopotential plane wave approximation method based on density functional theory (DFT). The results show that doping significantly alters the system band structure and the electronic density of states (DOS), effectivly enhancing the ZnS optical response and the photocatalytic activity in the visible light range. The microscopic mechanism shows that ZnS photocatalysis efficiency is observably improved through doping.
The Reduction Properties of Hexa Aluminates Substituted by Different Metal Ions for Denitrification System
Authors: Ren Xiao Guang , Li Fu Xia , Li Peng , Hou Wei
Published: August 2013

In this study, the hexaaluminate catalyst SrMnMAl10O19-δ（M= Cd、Co、Cu 、Fe、Ni、Zn、Zr、Cr and Y）and SrMnFexAl11-xO19-δ(x=1, 2, 4, 6, 8)have been prepared by co-precipitation method. The catalysts were characterized by powder X-ray diffraction (XRD), surface area (BET), hydrogen temperature programmed reduction (H2-TPR). The reduction catalyst properties of hexaaluminate for deNOx were evaluated by using devices of micro-evaluation. The results showed that the CO could remove NOx very well. The hexaaluminate not only have a good catalytic performance, but also can form a complete crystal calcined at 1200 °C for 4 h.
Silver Co-Doping Effect on the Antimony Doped Tin Dioxide Electrode
Authors: Wang Yun Hai , Liang Yong Rong , Li Guo
Published: August 2013

In the present research, silver antimony co-doped tin dioxide electrodes were prepared via dip-coating pyrolysis method. The effect of silver doping on the composition, morphology, crystallization and electrochemical properties was investigated through various techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX) and cyclic voltammetry. The results showed that with proper silver doping, the electrode activity for wastewater treatment may be enhanced.
An Experiment Study of the Effect for the Fuel Additive Using in Fishing Vessels Light Diesel Engine Performance
Authors: Yang Tsun Lirng , Lin Cheng Wei
Published: August 2013

In this study, the vertical single cylinder YANMAR YDG3700N diesel engine power generator is used to find out the physical changes external to the engine under different fuel consumption rates and loads. The fuels used are what a Class A fishing vessel uses, which is blended with four different fuel additives available on the market to compare the combustion of the fuels with the addition of the additives in an attempt to find out the effect on the engine. The result of the experiment shows measurable external physical properties of the engine and fuel consumption rates under the combustion with fuels added with different additives in different proportions under different loading: the changes in engine speed and temperature of the exhaust will serve as a reference for choosing different fuel additives in the market and for better understanding of the properties of the fuel additives.
Influence of Ti-Doping on the Thermoelectric Properties of ZnO:Al Thin Films
Authors: Lin Qing Yun , Fan Ping , Luo Jing Ting , Zheng Zhuang Hao , Li Ying Zhen , Zhang Miao Qin , Chen Cong Min
Published: August 2013

Ti doped aluminum zinc oxide thin film was prepared by DC reaction magnetron sputtering method on the transparent glass substrates. The structure and thermoelectric performance of the deposited (TAZO) thin films are studied by various methods. XRD pattern shows that the TAZO thin film exhibits hexagonal wurtzite structure. After Ti-doping, the thermoelectric properties of TAZO thin film significantly improved at room temperature. The TAZO thin film has the maximum conductivity of 8.33×104 S/m and the Seebeck coefficient absolute value of 34 μV/K, which is respectively larger than that of the corresponding values.