bluuebunny/crossref_metadata_2025 huggingface dataset:
Preparation and Application of CA/BaSO4 -CR Composite Gel Ball in Cationic Dye Wastewater Treatment
Authors: Yu Da Mei , Lin Yun , Zhang Yi Min , Zhou Wen Juan , Zhao Dan Hua , Liu Xiao Jun , Wu Ying Hong
Published: June 2014

A new hybrid adsorbent of calcium-alginate encapsulated BaSO4-CR (CABSC) has been prepared. The adsorption selectivity and mechanism were studied by investigating the adsorption performance of two anionic and two cationic dyes. The adsorption of two cationic dyes (EV and MB) from aqueous solutions was examined using a batch sorption technique. The effects of time, pH, temperature and ionic strength on the adsorption were examined. Besides, this material was applied in the treatment of two practical cationic dye wastewaters. Our study shows that the sorbent could be a potential candidate for utilization in dye wastewater treatment processes.
Forest Cover Types Classification Based on Online Machine Learning on Distributed Cloud Computing Platforms of Storm and SAMOA
Authors: Li Guang Di , Wang Guo Yin , Zhang Xue Rui , Deng Wei Hui , Zhang Fan
Published: June 2014

Storm is the most popular realtime stream processing platform, which can be used to deal with online machine learning. Similar to how Hadoop provides a set of general primitives for doing batch processing, Storm provides a set of general primitives for doing realtime computation. SAMOA includes distributed algorithms for the most common machine learning tasks like Mahout for Hadoop. SAMOA is both a platform and a library. In this paper, Forest cover types, a large benchmaking dataset available at the UCI KDD Archive is used as the data stream source. Vertical Hoeffding Tree, a parallelizing streaming decision tree induction for distributed enviroment, which is incorporated in SAMOA API is applied on Storm platform. This study compared stream prcessing technique for predicting forest cover types from cartographic variables with traditional classic machine learning algorithms applied on this dataset. The test then train method used in this system is totally different from the traditional train then test. The results of the stream processing technique indicated that it’s output is aymptotically nearly identical to that of a conventional learner, but the model derived from this system is totally scalable, real-time, capable of dealing with evolving streams and insensitive to stream ordering.
Quantitative Evaluation of Science & Technology Tourism Resources Based on Geographic Information System
Authors: Wang Wei Hong , Tang Yi Ping , Wu Feng Qiang
Published: June 2014

Mianyang, Sichuan is the so-called only City of Science and Technology in China, and it is also the first science & technology (industry) tourism demonstration base named by the National Tourism Administration. In this paper, the authors introduce the major science & technology tourism resources of this city, and evaluates them quantitatively using Geographic Information System technology.
Immobilized Microorganism Technology and the Application of Wastewater Treatment
Authors: Hu Ming Zhong , Tang Ya Nan , Wang Xiao Yu
Published: June 2014

The paper mainly summarizes the method of immobilized microorganism£¬selection the carrier, and application of immobilization technology and wastewater treatment progress. Ammonia-nitrogen wastewater and refractory organic wastewater, heavy metal wastewater, printing and dyeing wastewater, oily wastewater and several kinds of wastewater treatment of immobilized are introduced respectively. And points out what the problem should be solved that applied the laboratory application to the real engineering practice.
The Application of Big Geospatial Data in Smart Agriculture
Authors: Ye Jiu Yan , Chen Bin , Ke Zun Lin , Chen Jian , Fang Yu
Published: June 2014

With the fast development of data acquisition and web transmission, the age of big geospatial data(BGD) has come. BGD will greatly change peoples’ life-style of and our society’s work mode. In agriculture field, there will also be a lot of changes brought by BGD in future. In this paper, we had a study on the processing of BGD and its application in agriculture. Firstly, we introduced BGD including its definition, value and application areas. Secondly, we summarized the research progress and key technologies of BGD processing in the cloud computing environment. Lastly, we talked about the application of BGD in agriculture industry and looked forward to its development trend.
Tempo-Spatial Characteristics Analysis of Vegetation Cover Change in Inner Mongolia from 2000 to 2011
Authors: Qin Fu Ying , Jia Gen Suo , Yang Jie , Bao Yu Hai
Published: June 2014

Annual mean NDVI of different Vegetation types during growing season are extracted from MODIS 8-day composite 500m reflectivity data in Inner Mongolia from 2000 to 2011 to analyze vegetation dynamic change and its spatial variation trends. It is shown that annual mean NDVI of different vegetation types has a slight upward trend during the past 12 years and the overall vegetation cover increases slightly. Area of improved vegetation is larger than degradated area and one third area basically no vegetation change, spatial pattern of vegetation cover change shows evident differences between regions.
The Methods of Mapping Lithology with AVIRIS Data
Authors: Ming Yan Fang , Yang Li
Published: June 2014

A hyper-spectral remote sensing instrument AVIRIS was used to map lithology. Ground measurement data of lithology from ASTER Spectral Library were used to analyze the characters of the spectrum and form the model to estimate the type of lithologies. we process the spectrum with the methods of spectral angle mapping, and spectral absorption index etc. To enhance the significance of the spectrum character, we used the methods of spectral angle mapping, and spectral absorption index etc to process the spectrum. An AVIRIS data covers the Cuprite mining district in western Nevada, USA was used to do the experiment, result shows that the lithologies got from the AVIRIS have a high consistence with groud measurement.
Inhibition Effects on Escherichia coli and Staphylococcus aureus of Purple Pigment Produced by Streptomyces sp. Dagang-2
Authors: Liu Hai Jun , Zhu Mi Jia , Yuan Zhi Min , Han Jun , Yao Jun
Published: June 2014

A novel actinomycete, Streptomycessp. Dagang-2 was isolated from the oil contaminated soil, which has a high homology of 98.59% with Streptomycesmacrosporeus strain AM2-8. Purple pigment was purified from this strain, which showed a high chemical stability of acid-base, heat and light. Escherichia coli and Staphylococcus aureus were selected to evaluate the inhibition ability of purple pigment combined with microcalorimetric analysis and oxford cup method. The purple pigment showed a striking inhibition effect on Gram-positive bacteria S. aureus, however, it did not emerge an obvious antimicrobial activity against Gram-negative bacteria E. coli. It also could reflect the dynamic process of inhibiting effect to bacteria from purple pigment using microcarlorimetric technique. These results of this study might be useful for gaining more understanding of inhibition mechanisms from purple pigment.
Analysis of Dust in the Metro’s Bottom and the Dust Removal Project
Authors: Hu Xiong , Ren Guang Sheng
Published: June 2014

After the metro run a long time, the bottom of the car body will be deposited amount of dusts. We must remove the dusts in the bottom. If we take some traditional methods, this not only will make the working environment dirty, but also unable to clear all dusts. This paper analyzes the dusts in the metro’s bottom first, and then introduces the dusts removal project, this project use 4 air compressors and 6 industrial vacuum cleaners, air compressors are on one side, and industrial vacuum cleaners are on the other side, this means we take two way to deduce the dust at the same time, blow and inhale. Last we design the vacuum pipelines.
Enlightenments from Spatial and Industrial Distribution of Cleaner Production in China
Authors: Qiao Hui Min , Chang I- Shin , Yang Yan Xia
Published: June 2014

Cleaner Production (CP) is a sustainable developing pattern and an environmental strategy based upon source reduction, under the context of rapid economic development, excessive resource utilization and consumption, fast depletion of natural resources, and severe degradation and deterioration of environmental quality. In China, the development of CP is promising and prompt with continuous improvement, since it was introduced in China in early 1990s. However, there are still lots of problems for the promotion and development of CP. In this study, through statistical analysis of spatial and industrial distribution of CP in China, some corresponding advises are given to promote and facilitate the development of CP, and to provide some fundamental groundwork for legal and institutional construction of CP in China.
Paddy Field Purifying Fishpond Water and the Necessary Size
Authors: Zhu Jian Qiang , Tian Min , Li Gu
Published: June 2014

Water quality is important to fishpond culture, and it is required to improvement in the process of aquiculture especially as it impact on normal growth for aquatic animals. Usually the purification of fishpond water adopt two methods that are in-situ and ex-situ purification, water from fishpond purified by paddy field then to return the pond belongs to ex-situ purification of fishpond water. The field experiment results showed that water form fishpond flowing through the paddy field surface more than 20%~24% of total phosphorus and 25%~33% of total nitrogen are removed which is beneficial to both fertilizer-saving for rice production and water environment improvement for pond culture, so it is liable to popularize in the middle and lower reaches of the Yangtze Rive, China. In order to extend the ex-situ purification of fishpond water by paddy field, it is needed to determine suitable size of paddy field. Based on field experiment and the results analysis, the paper gave a method to determine the length and width of the land block. The size of paddy field in long dimension is determined by flow path necessary for water quality indicators to achieve their allowable emission, the width of paddy field is calculated according to the relevant parameters including daily hydraulic load which is a total quantity of water from fishpond into paddy field, inflow rate per unit width in paddy field, a duration that fishpond water flow into paddy field for purification. Calculation and analysis showed that, for ordinary decentralized fishpond managed by peasant household, paddy field block with long side of 100 m long can satisfy the removals of TN and NH3-N contained in fishpond water through surface flow in paddy field, but can not meet the removal of TP which can be solved by flow path extension using series connection of the two adjacent plots set in standardization field block, or by setting up ecological ditch in paddy field so as to strengthen water purification.
Analysis on Land-Use Expansion in the Process of Urbanization in Shiyang River Basin
Authors: Zhang Hui , Zhang Zhi Qiang
Published: June 2014

The Shiyang River Basin is one of the key research areas of sustainable economic and social development in the river basins of China. In order to figure out the mechanism of land-use expansion in the process of urbanization of Shiyang River Basin, the paper intends to carry out the evaluation of land-use expansion because of urbanization from the perspectives of social economy, regional transportation and ecological environment. By taking advantage of the land suitability evaluation method, it makes out the spatial framework of possible areas for urban expansion so as to provide suggestions for the further coordinative development of urbanization in the basin area as well as of the ecological zones.
Investigating the Interaction of Ninhydrin with Amino Acids and Polypeptide
Authors: Hu Shu Yuan , Li Hui Qing , Yu Lian Wei , Tian Fu Li
Published: June 2014

Ninhydrin chromogenic reactions are widely used to analyze and characterize amino acids, peptides, and proteins. In this study, the spectroscopy behavior of ninhydrin reaction with mercapto amino acid and polypeptide has been investigated. The maximum absorption wavelength of glutathione reaction with ninhydrin was 568 nm; the maximum absorption wavelength of cysteine reaction with ninhydrin was 457 nm. Under the optimized wavelength condition, glutathione and cysteine in the certain concentration range exhibt good linear relationship and low detection limit.
Study on Optimization of Ecological Spatial Pattern Influenced by Urban Carbon Sink
Authors: Shi Tie Mao , Xu Ting Ting
Published: June 2014

Based on the theory of unban carbon sink , search it according to actual situation of the study area and related research results, select the most important carbon sink factor which influenced ecological environment and other influences, take them as the effects the constraint conditions of urban ecological space, calculate kinds of carbon sink data. Endow different weight value according to their importance. The factors would be the mutual superposition based on the spatial analysis of GIS, form the ecological support spatial pattern with natural elements. The whole ecological network is constructed of source region, eco-corridors and ecological node with the space connectivity. At the end, optimize the urban ecological spatial pattern in the level of urban carbon sink distribution, help urban to become more perfect on planning and development.
Investigation into the Controlled-Release Kinetic Models of Rose Perfume in SBA-15 and KIT-6
Authors: Yu Yi Feng , Chen Ai Bing , Xing Ting Ting , Yu Yun Hong , Lv Hai Jun
Published: June 2014

A new system for the controlled release of rose perfume is presented. Mesoporous SBA-15 and KIT-6 materials as controlled-release agent are synthesized via hydrothermal method. Rose perfume was introduced into the pores of SBA-15 and KIT-6 via the incipient wetness impregnation method. This silica reservoir maintained a slow release of rose perfume over more than 10h. Rose perfume release was controlled by configurational diffusion in the SBA-15 and KIT-6 pores having free diameters of less than 12 nm. The release of rose perfume was tuned by adapting pore diameter and temperature. By fitting the release data, the results show that the release actions of rose perfume in SBA-15 and KIT-6 are consistent with Korsmeyer-Peppas model and First-order’model respectively.
Analysis of Farmland Abandonment from Farmers’ Cognitive Perspective: Based on an Investigation of a Village in Hebei Province
Authors: Liu Xiang Min , Fu Mei Chen
Published: June 2014

Farmers’ cognition on farmland abandonment and related land system was investigated in a village of Hebei province in China. The survey shows that: (1) The rural economic environment affects farmers’ cognition and behavior of farmland abandonment; (2) Farmers’ cognition on related rural land system is poor, and most farmers have willingness to improve their cognition; (3) The ways to increase farmers' cognition on related land system are not good enough, and the propaganda contents do not meet farmers’ cognitive demands. Conclusions: The methods of improving farmers’ cognition on rural land system should be diversified, and the contents should be designed according to farmers’ characteristics and demands.
Optimizing Land Use Patterns Based on Environmental Capacity: A Case Study of Dongying City
Authors: Shen Xiao Qiang , Wu Ci Fang , Wang Li Ping
Published: June 2014

This paper evaluated the environmental burden and capacity of Dongying City by emergy and ecological footprint to provide basis for optimizing land development. The result shows that from 2000 to 2010, the land area needed to support human society expanded rapidly from 310000 ha to 735000 ha, while the environmental capacity increased from 1144900 ha to 1226100 ha, which would be caught up by environmental burden in near future according to the current trend. Pollutants assimilation is the main environmental burden and local nonrenewable resources accounting for more than 65.0 percent of the total human emergy consumption. Cultivated land and construction land are the major sources of environmental capacity. Hence the farmland and virgin land should be developed for multifunction and construction land used in a low carbon and intensivism way to promote environmental sustainability.
Research of Interaction between Rail Transport and Land Use in Infancy: A Case on Hangzhou Rail Way Line One
Authors: Gu Cheng Qiong , Zhu Jia Yi
Published: June 2014

Recently, by the continuous development of the urban rail transport construction, the issues of urban land use have become increasingly prominent, which requires a combination of urban land use and transport systems, so as to choose a reasonable planning and optimization strategies to promote sustainable urban development. This paper bases on Hangzhou Rail Transport Line rail and land use, with analysis of the status of spatial pattern, structure and function, raising optimization strategies for sustainable transport modes for further planning of urban space, thus, providing an important theoretical basis.
Try to Talk about the Role of Landscape Plants in Urban Garden
Authors: Peng Tao , Yang Bai Bing , Zhang Yan
Published: June 2014

All aspects discussed in garden plants in urban gardens. Garden plant is beautifying the environment, improve the ecological environment, protect the environment, and enhance the role of spiritual civilization construction and so on.
Using Hemispherical Photography to Determine Leaf Area Index of Landscape Trees in Urban Green Space of Dongguan, South China
Authors: Mo Luo Jian , Li Wen Bin , Ye Yong Chang , Zhou Yong Wen , Liu Song Song , Su Zhi Yao
Published: June 2014

Transect sampling method was used to measure structural attributes of landscape trees in urban green space of three city parks and one residential greenbelt in Dongguan. Leaf area index (LAI) of the landscape trees in each urban green space was determined using hemispherical photography. Average DBH (diameter at the breast height) and CW(crown width) in Wenhua Square were the largest due to the presence of heritage large trees, while the landscape trees were species diverse in Renmin Park. A comparison of LAI in the green space gave a result in descending order: Renmin Park > Wenhua Square > Jinhuwan greenbelt > Yuanmei Park. The case of Renmin Park indicated that when a green space consisted of various structural attributes, landscape trees in different growth stages tended to have large LAI. Findings of our study suggested that a diversity of trees with potentially different LAI should be selected when planning urban green space.
Xinjiang Land Resources and Ecological Environment Coordinate Development Research
Authors: Qing Li
Published: June 2014

Benign coordinating relations can promote sustainable use of land resources and improve of the ecological environment quality and excessive exploitation and utilization of the land resources will only aggravate the ecological environment vulnerability and further restrict the sustainable development and utilization of the land resources. This paper, from the perspective of basic current situation of Xinjiang, by using the coupling evaluation model and principal component analyze, on the basis of coupling relationship, studies both the degree of coupling relationship and the influence mechanism and analyzes the dynamic evolution process of development and utilization of land and ecological environment in 2000 ~ 2010,. The results of the study show that: (1) the development of land use intensity and ecological environment shows fluctuation state on the whole. Although environment has been improved in recent two years, but both the coordinated development is still faced with great pressure. (2) The dynamic evolution relationship between the development of land use and ecological environment does not meet the long-term equilibrium relationship and the ecological and environmental benign condition is not obviously. presented This paper holds that: adhering to synchronization of the development of land use and ecological environment improvement, and sustaining relatively stable operation mechanism of ecological environment can maintain the sustainable development of regional economy.
Change of Landscape Pattern in Yalu-River Estuary Wetland
Authors: Zhang Chun Peng , Liu Jing Wei , Yan Cheng
Published: June 2014

Three phases of remote sensing image data of Yalu-river estuary wetland taken respectively in 1983、1995 and 2007 were interpreted though ARCGIS software and the change of landscape pattern was analyzed with three categories of indices from the landscape pattern and landscape levels by means of using FRAGSTATS software. Results show that the 1983-2007, the research area of wetland landscape changes drastically, wetland landscape made of natural wetlands to artificial wetland, wetland fragmentation degree deepening, artificial wetland distribution area expanded. During the study period, the influence of human activities on the wetland increase and increase in area of sea aquaculture is the main cause of the yalu estuary wetland area reducing, is also one of the main reasons for the region function of wetland degradation.
Research on Evaluation of the Landscape and its Functions in Houtan Park of the World Exposition 2010 Shanghai, China
Authors: Zhang Yin Jiang , Dong Yue , He Pei Min , Yu Kong Jian , Jin Jing
Published: June 2014

Construction of urban waterscape parks based on ecological concepts and functions is becoming the tendency of modern urban parks. Unfortunately, there are no suitable evaluation systems for these parks. This study establishes a comprehensive evaluation system for a landscape and its functions via the analytic hierarchy process and the comprehensive index method. The evaluation model consisted of 3 evaluation indexes and 23 evaluation indicators relevant to the landscape characteristics of Houtan Park of the World Exposition 2010 Shanghai, China. The evaluation indicators were monitored from 2006 to 2010, and the results of the investigation led to the following conclusions: the park fulfills a range of desirable functions, and ranks high in aesthetic, economic and societal values; ecological functions were applied well within the landscape, and following ecological restoration and the construction of a functional aquatic ecosystem, the water quality of Houtan River has been continuously purified from inferior class V~ class V to class III~ class I range, while the heavy metals in the sediment were improved from inferior class V~ class V to class I; the biodiversity was improved from 0.72 into 1.49; and the results for other indicators were improved overall. In general, the comprehensive score of the evaluation increased from 1.227 to 4.341. Although minor problems remain to be solved, the results indicate that the design concept and construction methods applied in Houtan Park are well applicable to sustainable landscapes, and the evaluation system as a whole can be extended and applied in similar cases.
Isolation and Characterization of a Phosphate-Solubilizing Bacterium Pseudochrobactrum sp. PSB13 from Petroleum-Contaminated Drill Cuttings
Authors: Zhao Li Bin , Wang Xin Xin , Li Chen , Chen Yu , An Wei , Dong Jian
Published: June 2014

Phosphate-solubilizing bacteria were extensively studied in many environment. However, little is known about them in drill cuttings, as wastes from drilling process. A phosphate-solubilizing bacterium strain PSB13 was isolated from petroleum-contaminated drill cuttings. This strain was identified as Pseudochrobactrum sp. based on its 16S rDNA sequence and phenotypic characteristics. This strain could solubilize 97.6 μg/ml phosphates in 6 days when grown in NBRIP liquid medium. The increase in solubilization of phosphate coincided with the drop in pH, which indicates organic acid was responsible for the phosphate-solubilization. Phosphate-solubilizing bacterium was reported in drill cuttings for the first time, which suggests its potential in the bioremediation of petroleum-contaminated drill cuttings.
The Design Principles and Methods of Ecological Waterpront Landscape in Modern Campuses
Authors: Zhang Wei
Published: June 2014

Functions of campus waterpront landscape mainly reflected in recreation, ecological and landscape art. Analyzes the problems of the destructed water quality, stiff shoreline, unparticipatable and can not reflect the ecological and cultural characteristics of the campus in a large number of campus waterpront landscape, intruducts the renovation and design principles of sustainability, viewable and participatable, and the Renovation and design methods of constructing the natural ecological revetment form, creating a free revetment shoreline, plant local plants on the revetment, and set hydrophilicity facilities.
Analysis of Temperature and Heat Flow Characteristics in Underground Tunnel
Authors: Xie Hai Min , Li Mao De
Published: June 2014

This paper summarizes the two methods which are experimental research and numerical simulation to thermal environment of the tunnel. Then the latest developments of the thermal environment research at home and overseas are introduced. At last a simplified model of thermal environment of underground tunnel is established. Through CFD software, the radial temperature distribution of tunnel surrounding rock and the axial temperature distribution of air at winter and summer conditions are obtained which provide basis for further research on thermal environment.
Research on Developing the Site Plan of Junior School Campus Located in the Towns of Guangxi Province Based on the Wind Environmental Optimization: Taking Zhemu Middle School as an Example
Authors: Wen Zheng Min , Yang Xue Feng , Wei Shu Jing
Published: June 2014

Creating comfortable wind environment is an important method to achieve the energy saving and emission reduction in campus. This essay proposes the compilation method of site plan in junior campus specifically located in the towns of Guangxi Province from building layout, interval, orientation, open space and road layout to optimize the wind environment with qualitative and quantitative analysis. The essay considers that (1) the combination form of building groups in campus should be based on the principle of reducing tropical island effect in summer and decreasing wind penetration in winter; (2) reasonable interval and orientations of buildings can contribute to optimizing campus atmospheric conditions; (3) optimal layout of open space in campus can accelerate the wind speeds in summer and block out wind in winter; (4) reasonable layout of major roads can improve the ventilated environment in campus. The results can be theoretically and practically significant to plan and build low-carbon campus.
Investigation on Thermal Environment in Railway Station Waiting Room
Authors: Di Yu Hui , Xu Zi Long , Jiang Chun Yang
Published: June 2014

Takes a field measurement in traffic statistics, indoor and outdoor temperature and humidity, analyzes the thermal environment of the railway station waiting room of Xi’an. Investigates the thermal comfort status using ASHRAE seven sensation scales by questionnaires, survey the people’s satisfaction to the environment of waiting room.
Structuring and Measurement of Evaluation System of Eco-Civilization Construction in China
Authors: Wang Xiao Jun , Tu Chao Lian , Wang Zu Shan
Published: June 2014

Structuring and measurement of eco-civilization construction is an important part of researching on eco-civilization construction theory, which possesses the practical significance of measuring eco-civilization construction level and guiding the eco-civilization construction practice. The evaluation system of eco-civilization construction level could be structured from five aspects of the quality of ecological economy and society, the development of ecological base, ecological saving, ecological protection and ecological harmony. Analyzing the main parts of five aspects by use of factor analysis method, the ecological economy and society quality played the key role in the evaluation model of eco-civilization construction level. Based on the cluster analysis on the data of inland provinces and municipalities in the year of 2012, the eco-civilization construction level of inland of China could be clustered as different categories with obvious imbalance among different areas.
Capability of Sterilization and Releasing O2 about Typical Plants in Anshun City
Authors: Zhang Lai
Published: June 2014

The results showed that For open areas, the bacterial number was significantly much than plant areas , 11 species of them have strong bactericidal effects, their sterilization rate were more than 40% . the ability of releasing oxygen was different for different plants in different months, but the similar law was rising in June and August, declining in July and September; in August. The results provide some basis informations and valuable suggestions for Anshun city ecological construction, improving the living environment and ecologically sustainable development.
Coastal Wetland Degradation and its Restoration Planning Incorporating Landscape and Ecological Processes in Tianjin, Northern China
Authors: Meng Wei Qing , Hu Bei Bei , Wang Zhong Liang
Published: June 2014

Coastal wetlands are the main natural ecosystem type and provide important ecosystem services. During the past thirty years, wetlands had experienced increasing pressures from occupation and degradation with coastal economic activities in Tianjin. A large amount of natural wetland had been changed into artificial wetland, and rivers had been seriously polluted. Using remote-sensing images, the recent history of the dynamics for the shoreline changes and reclamation were described. The area of reclamation land increased from 52.32 km2 in 2004 to 312.78 km2 in 2010. Following the investigation, 232 species wetland plants were found and they are belongs to 46 families and 135 genera. The community is mainly composed of herbs, and no big trees were founded as high salt content in soil and groundwater. The coastal wetland vegetation succession rules were summarized based on investigation and a wetland protection and restoration program was put forward based on the vegetation succession sequence and the landscape context. The planning includ two wetland protection sites, two wetland restoration sites, one wetland park and one wetland education site to reconstruct the ecological integrity in Tianjin coastal region.
Study on Environmental Issues of Golf Course Construction in China
Authors: Shen Ke Yin , Kou Xian Juan
Published: June 2014

The rapid development of Golf in China has brought not only illegal construction in the number of golf courses, but also a certain degree of environmental problems, which were questioned by the public and restricted by national policies. Based on the perspective of environmental protection,we study the consumption of water, a lot of land encroachment, destruction of the ecological environment and other issues in the construction of Golf course by using of literature, case studies and other research methods. we propose that the specific strategies on development Golf and protect environment combined with the importance of environmental protection. Development of golf is not simply the pursuit of increasing the number of golf courses, nor at the expense of the ecological environment at the cost of one-sided pursuit of economic, social neglect, but under the protection of the environment, the premise of sustainable use of resources, and take the road of sustainable development.
Photocatalytic Degradation of Phenol with Bacteriorhodopsin Sensitized TiO2 Nanoparticles
Authors: Dai Gang , Chao Luo Meng , Iwasa Tatsuo
Published: June 2014

Bacteriorhodopsin (BR) is a light driven proton pump firstly found in the membrane of halophilic archaea. BR absorbs wide range of visible light with high quantum efficiency. To elucidate the sensitizing effect of BR, we tested the photocatalytic degradation of phenol with BR-sensitized TiO2 nanoparticles and compared with that of Alizarin red (AR). When the concentration of BR was 13.1 mg/L (4.9×10-7 mol/L), 23.8% of phenol was degradated after 2 hours of light irradiation. The degradation percentage was 3.5 times higher than that with TiO2 nanoparticles alone and similar to that sensitized by AR (20.1%). The possibilities and approaches to increase the sensitizing performance of BR were discussed.
Research Progress in the Typical Structure of Human Telomeric G-Quadruplex
Authors: Liu Gui Lin , Ding Yan Ping , Wu Yan Ling , Zhang Wen
Published: June 2014

Telomeric DNA of human chromosomes plays a significant role in physiological processes such as cell cycle, aging, cancer and genetic stability due to its special sequence and structure. The research on small molecule ligands targeting G-quadruplex formed by such special sequence has attracted considerable attention, and has achieved great breakthrough. In this paper, we summarize the DNA sequences and structures of three kinds of typical human telomeric G-quadruplex, providing an important reference for further research.
The Characteristics of the Rare Earth Elements in the Surface Sediments on the Western South Yellow Sea
Authors: Dou Zhen Ya , Xu Gang , Wang Jiao
Published: June 2014

Analyses of Rare Earth Element were made for the 486 surface samples from the western South Yellow Sea in this paper. It was found that the grain size dominates the distribution of the elements. Their contents rise with the decrease of the mean grain size. Their contents was also effected by the minerals at certain stations. The parameters of the Rare Earth Element denote the surface sediments are mostly from Yellow River in the study area.
Adsorption-Desorption Characteristics of E.coli by Quartz Sands of Different Particle Size
Authors: Wang Zhi Rong , Wang Wei Li , Zhu Xiao Yan , Wang Jing Lan , Han Zhi Jie , Hua Ya
Published: June 2014

Adsorption-desorption characteristics of E. coli by quartz sands of five different particle size (351、319、217、71、27μm) were studied using batch equilibrium method. The results showed that quartz sands had great adsorption quantity of E. coli. The adsorption ratio could reach above 95%,when the initial microbial concentration was 109 cfu/mL. With the decreased of the quartz sand particle size,the adsorption quantity increased,and adsorption reached balance faster. The Pseudo-second-order rate equation is optimal to describe adsorption kinetics of E. coli by quartz sands, and the isothermal adsorption process is suitable to describe using Henry equation. Quartz sands had small desorption ratio of E. coli,the desorption ratio increased as quartz sands particle size increased, the largest desorption ratio was only 3.6%.The desorption dynamic processes and desorption isothermal processes also can be decreased using Pseudo-second-order rate equation and Henry equation respectively. Desorption of E. coli on quartz sands existed obvious hysteresis. It indicated there existed irreversible adsorption between E. coli and quartz sands, which the E. coli adsorbed was hard to desorb. The average particle size of quartz sands have some relevance with the parameters of Henry equation and Pseudo-second-order rate equation. This shows that particle size is one of the important factors that affect the adsorption and desorption.
Effect of Lithium on Growth Process of Environmental Microorganism by Microcalorimetry and SEM
Authors: Li Hui Rong , Liu Wei Ming , Cheng Shi Jing , Jiang Yang
Published: June 2014

Bacillus thuringiensis (BT) was the typical environmental microorganism.To explore the environmental behavior of lithium, the growth metabolism of BT under Li+ was investigated by microcalorimetry. The power-time curve showed the growth metabolic power-time curve of BT was divided into the bacterial growth phase and sporulation process. Lithium at 0.1-12mmol L-1 revealed no obvious effect to the bacterial growth phase of BT . Li+ at 0.1-4mmol L-1 stimulated the sporulation production and Li+ at 12-16mmol L-1 inhibited that respectively. While the time for initiation to produce sporulation was not influenced. However, the time for initiation to produce sporulation was earlier than the control induced by 8 mmol L-1 of Li+. The interest turning point of microcalorimetric result was confirmed by the following SEM detection. Besides the proof on environmental behavior of lithium, present results may bring related information for BT spores biological engineering transformation.
One-Step Purification of Catechol 2,3-dioxygenase from Bacillus cereus ZL1
Authors: Zhou Lin , Zhou Zi Xiong , Zhu Shuang
Published: June 2014

Catechol 2,3-dioxygenase (C23O), the key enzyme catalyzing the second step in the phenol degradation meta-cleavage pathway has been purified to homogeneity by one-step chromatography from bacterial strain Bacillus cereus ZL1. The culture condition was optimized according to the analysis of the biomass and C23O activity, and the separation process was monitored by SDS-PAGE method. The molecular weight of the purified C23O was 37±3KDa and the active enzyme was eluted by potassium phosphate buffer with 400 mmol NaCL using linear gradient mode on DEAE-Sepharose Fast Flow.
Pyrosequencing-Based Assessment of Bacterial Community Structure in Wuliangsuhai Wetland
Authors: Wu Lin Hui , Liu Jian Li , Zhao Ji
Published: June 2014

Microorganisms play important biochemical and geochemical roles in the environments they inhabit. To understand structure and function of wetlands ecosystems, it is essential to identify primary drivers of microbial diversity and community structure. In this study, soil bacteria communities were profiled in Wuliangsuhai Wetland, a natural wetland located in western Inner Mongolia, China. Soils were surveyed to characterize the structure and diversity of its microbial communities using barcoded pyrosequencing based on the 16S rDNA. The most abundant bacterial groups in all four soils were the Proteobacteria, Bacteroidetes and Actinobacteria. The results of this study provide new information regarding a previously uncharacterized wetland ecosystem and show the value of highthroughput sequencing in the study of wetland ecosystems.
Study on Degradation Performances of Klebsiella Spp. For Cyclohexane
Authors: Jin Wen Jie , Lei Chun Yan , Liu Ying , Xing Qi Qi
Published: June 2014

Degradation performances of Klebsiella spp. for Cyclohexane was studied by using the method of single factor in the paper. The influences of temperature, pH, initial concentration of Cyclohexane, oxygen supply, culture time etc. were studied and the optimum conditions were determined. The results show that the activated strains of Klebsiella spp. are inoculated in the liquid culture medium of 100 ml which contained cyclohexane, the initial concentration of cyclohexane is 2490 mg/L, the culture temperature is at 28°C, pH is 6, the number of Klebsiella spp. is about 9×105 ml-1 in the liquid culture medium, the speed of rotary shaker is 120 r/min, and the degradation rate of Cyclohexane reaches 70.1% in 96 hr. The results could provide the theoretical basis in the field of pollution treatment of petroleum hydrocarbons.
The Performance of Highly Dispersed Au-Pd/ZrO2 Catalyst for Base-Free Synthesis N-Benzylidenebenzylamine
Authors: Ao Wu Lan , Jia Mei Lin , Bao Yong Sheng
Published: June 2014

A series of Au/ZrO2, Pd/ZrO2, Au-Pd/ZrO2 catalysts were prepared by the solution reduction method using NaBH4 as reducing agent and L-lysine as protection agent. UV-Visible and XRD were employed to investigate the dispersion, composition and catalytic properties of the catalyst. The results show that Au-Pd/ZrO2 alloy catalyst with high dispersion display higher activity than monometallic Au, monometallic Pd catalyst for the base-fee synthesis of N-Benzylidenebenzylamine.
The Response of Antioxidant Enzyme in Zebra Fish to Water Polluted by Heavy Metals Pollutants
Authors: Zhang Qiu Gen , Wu Jing Yi , Chen Su Hua
Published: June 2014

Zebra fish was used as testing animal to be stimulated by heavy metals (Cd2+ and Pb2+) in 1/20, 1/10, 1/5 half-lethal concentrations respectively. The superoxide dismutase (SOD) and catalase (CAT) were used as biomarkers to study the response of heavy metals pollutants in water on antioxidant enzyme of zebra fish. The results indicated that the activities of SOD weakened with the time increasing in the polluted water containing Cd2+, but the activities of CAT increased under the low concentration, and the activities trend of CAT increased at the initial period and then decreased when the concentration of Cd2+ increased a certain degree. Moreover, the activities of SOD became stronger along the time increasing in the polluted water containing Pb2+, but the enhancing trend of SOD gradually became weaker along increased concentrations, however for the activities of CAT enhanced in the initial period and then fell with the time, and the trend of decline was more and more obvious.
Preparation of Gold Nanoparticles Supported on Montmorillonite and its Catalytic Activity for CO Oxidation
Authors: Hu Ting Ting , Zhu Lin Hua
Published: June 2014

Gold catalysts supported on Na-MMT and Al-PILM noted as Au/Na-MMT and Au/Al-PILM respectively were prepared using Au(en)2Cl3 as precursor, and the catalytic oxidation activity for CO oxidation was investigated. The influence of different carriers on the conversion of CO was discussed. The phase of catalysts, the actual gold loading and the morphology of gold nanoparticles were characterized by X-ray diffraction(XRD), X-ray fluorescence analysis(XRF) and Transmission electron microscopy(TEM). The results showed that Au/Al-PILM exhibited higher catalytic activity for the oxidation reaction of CO, and 100% conversion of CO was achieved at reaction temperature of 250°C when gold precursor was loaded on the Al-PILM carrier at 60°Cand calcined it at 450°C for 1h.
The Responses of Invasive Plant Alternanthera philoxeroides to Combined Treatments of N and P Supply
Authors: Ding Wen Juan , Zhang Hua Yong
Published: June 2014

Due to the intensified human activities, atmospheric nitrogen deposition and agricultural and urban runoff have largely increased and led to the shifts in the N: P supply ratios in aquatic ecosystems. In this study, we examined the effects of N and P supply in waters and nutrient level in substrate on the growth and biomass allocation of the invasive plant Alternanthera philoxeroides. In the experiment, A. philoxeroides was applied to five combinations of water N and P supply across with two nutrient levels in substrate. The growth of A. philoxeroides was determined by N: P ratio and increased with the increase of N: P ratio. High nutrients in substrate also promoted the clonal growth and aboveground allocation of A. philoxeroides. Therefore, high soil nutrients at the water’s edge and high N: P supply ratio in water will facilitate the expansion and invasion of A. philoxeroides in aquatic habitats. In the context of increased anthropogenic nitrogen deposition and runoff inputs with high relative level of N, the invasion of A. philoxeroides to aquatic environments needs more attention.
Anti-Fatigue Activity of Soy Isoflavones in Mice
Authors: Jin Lian Hai , Zhao Xing Yu , Qin Ying Xin , Zhu Wen He , Luo Zheng Li
Published: June 2014

In the present study, we investigated the anti-fatigue activity in male Kunming mice with Soy isoflavones using a forced swimming test. Mice were divided into four groups (three Soy isoflavones administered groups and a control group). The control group was gavaged with distilled water and Soy isoflavones administered groups were gavaged with Soy isoflavones (10, 20 and 40mg/10g body weight /d). After four weeks, a forced swimming test was performed and the biochemical parameters related to fatigue were examined. The results suggested that Soy isoflavones could extend the swimming time to exhaustion of the mice. This indicated that Soy isoflavones had anti-fatigue activity and could elevate the exercise tolerance.
Biodegradation of Kraft Lignin by a Bacterial Strain Sphingobacterium sp. HY-H
Authors: Duan Jing , Liang Ji Dong , Du Wen Jing , Wang Dong Qi
Published: June 2014

A lignin-degrading bacterium was isolated on mineral salt medium amended by lignosulfonate (L-MSM) agar from the activated sludge of a pulp and paper mill wastewater treatment plant and identified as Sphingobacterium sp. HY-H by biochemical tests and 16S rRNA gene sequencing. The maximum kraft lignin (KL) degradation capability of strain HY-H was determined to be 28.2% on a COD basis under the optimal conditions of pH 7.0, temperature 30°C, and KL to nitrogen (as NH4Cl) ratio of 2 by mass. Moreover, growth kinetic studies showed the KL tolerance of strain HY-H was relatively high and the analysis of KL degradation products by GC-MS revealed the formation of low-molecular-weight aromatic compounds (LMWACs), such as guaiacol, vanillin and vanillyl alcohol, indicating that the strain HY-H can oxidize guaiacyl (G) units and syringyl (S) units in lignin structure. In addition, some low molecular ketone compounds such as 4-hydroxy-2-butanone and methyl vinyl ketone were detected in the inoculated sample after 48h, further validating the partial but possible degradation of KL by strain HY-H.
Effects of Cypermethrin on the Superoxide Dismutase Activity of Macrobrachium nipponense
Authors: Wang Hong Wei , Wang Hui , Zhao Chun Long , Yuan Gao Fei , Ma Liang , Li Lin Feng , Cai Duan Bo
Published: June 2014

To determine the effects of dietary selenium (Se) supplementary on muscle superoxide dismutase (SOD) activity, oriental river prawn, Macrobrachium nipponense were exposed to three commonly used pesticides - cypermethrin. For each concentration of each pesticide, the shrimps were grouped into control diet group, inorganic Se group and organic Se group. For each concentration of each pesticide, the order of total SOD activities were organic Se diet group > inorganic Se diet group > control diet group. With the increasing concentrations of pesticides, the total SOD activities increased first and then decreased dramatically. This study indicated that Se supplementary in diet could enhance the resistance of shrimps against low concentrations of ambient contaminants.
Effects of Parathion on the Superoxide Dismutase (SOD) Activity of Neocaridina heteropoda (Crustacea: Decapoda: Atyidae: Caridina )
Authors: Wang Hong Wei , Cai Duan Bo , Yang Li Kun , Xu Hai Ming , Hasan Amena , Guo Ye Dong , Li Qiu Liang
Published: June 2014

To determine the effects of dietary selenium (Se) supplementary on muscle superoxide dismutase (SOD) activity, oriental river prawn, Neocaridina heteropoda were exposed to commonly used pesticide-parathion. The shrimps were grouped into control diet group, inorganic Se group and organic Se group. For each concentration of pesticide, the order of total SOD activities were organic Se diet group > inorganic Se diet group > control diet group. With the increasing concentrations of pesticide, the total SOD activities increased first and then decreased dramatically. This study indicated that Se supplementary in diet could enhance the resistance of shrimps against low concentrations of ambient contaminants.
Study of Additives on Performance of Copper Films with Pulse Electroplating
Authors: Xi Jian Jun , Zhao Jun , Wang Zhi Gang , Zhao Chun Ping
Published: June 2014

The effects of copper deposition with three different additives were studied, which are triethanolamine, selimium dioxide and allylthiourea in citrate electrolyte. SEM (scanning electron microscopy) was used in the investigation of surface structures formed in the course of processing. The cathode polarization test was to tell the influence of different components and electroplating conditions to the plating system. Through orghogonal experiments, it was observed that the best additive combination is triethanolamine 3ml/l, selimium dioxide0.012g/l and allylthiourea0g/l.