bluuebunny/crossref_metadata_2025 huggingface dataset:
A Study of Concentration of Coastal Container Ports in China
Authors: Li Dan , Luan Wei Xin
Published: December 2014

To study the rationality of concentration of coastal container ports in China, a comparison of container port concentration of China and other countries' has been carried out. The result shows that the concentration of Chinese ports is relatively low, but the container throughput of Chinese ports is relatively high and their average container throughput is much higher than other countries’ ports’. If we continuously promoted the concentration of coastal container ports, the main Chinese ports' container throughout would grow excessively. That will bring some negative effects to the port located cities and hinder the healthiness and steadiness of port development. So, although the current concentration of Chinese ports is relatively low, in consideration of the facts of our country, the status of low concentration should be maintained or becomes even lower, to ensure the sustainable development of coastal container ports.
Preparation of Polyacrylamide Using In Situ Polymerization
Authors: Lu Guo Zhong , Zheng Nan Nan , Sun Zhong Xiang , Zhang Yu Yan , Wang Hai Wang , Jiang Xian Tao , Zhang Jiang Shan , Lv Zhi Jie , Yan Cheng Yan
Published: December 2014

A nanoSiO2/polyacrylamide (PAM) organic–inorganic nanocomposite system was prepared using acrylamide as the monomer, nanoSiO2 as the modifier, and ammonium persulfate as the initiator. The system was then used to investigate the impact of various factors, including amount of modifier and concentration of monomer, thereby determining the conditions for optimal reaction. Infrared spectroscopy was then used for structural characterization. Measurements using the viscosity method indicated that the viscosity average molecular weight of the product exceeded 1 million. Electron microscopy images showed that a good organic coating layer formed on the surface of the microspheres.
Coupling Coordination Analysis of Urban Land Intensive Use Benefits Based on TOPSIS Method in Xianning City
Authors: Wang Ya Qun , Song Cheng Shun , Xiong Zheng
Published: December 2014

With the theory and method of general system science, the paper, by taking Xianning City as a case study, established coupling coordination theoretical models of socio-economic benefits and eco-environmental benefits of urban land intensive use, then analyzed socio-economic benefits and eco-environment benefits of urban land intensive use, coupling degree and coupling coordinative degree between urban land intensive use socio-economic and eco-environmental by using the statistical data during 1999-2010. The results showed that: (1) The socio-economic benefits of urban land intensive use increased rapidly, however, the eco-environmental benefits of urban land intensive use increased in a fluctuation; (2) The coupling degrees of urban land intensive use socio-economic benefits and eco-environmental benefits was at an antagonism development stage, the coupling degrees decreased slowly; (3) The coupling coordination degree of urban land intensive use socio-economic benefits and eco-environmental benefits experienced moderate coordination level and high coordination level.
A Sustainable New Public Transport Mode - The Electric Car Sharing
Authors: Sang Li , Wu Tao , Zhang Juan , Shi Jian Nan
Published: December 2014

Electric car sharing early developed and operated abroad. But it was applied tentatively in a few cities of China. the paper mainly regards electric car sharing as a new public transport mode, and analyzes its social and economic benefits, then puts forward the suggestion that electric car sharing should be included in the development of the whole city public transportation.
Dynamic Correlation Effects between Marine Economic Development and the Comprehensive Competitiveness of the Coastal Zone
Authors: Du Lin An , Luan Wei Xin , Li Dan
Published: December 2014

Study on the rationality of marine economy and coastal comprehensive competitiveness, is one of the fundamental theoretical problems co-ordination of land and sea. In order to evaluate the comprehensive competitiveness of coastal areas based on gray system model, calculated correlation and trends between economic development and integrated coastal ocean competitiveness. The result shows that there is a strong correlation between marine economy and inland comprehensive competitiveness in China. And the correlation presents an increasing trend. Marine economy is highly depending on inland economy social development. To achieve sustainable development, extended to the advantage of relying on the sea should be given full play to realize interactive development between marine system and inland system. The conclusions could provide a reference for the policies and plans to develop coastal economic development and marine economic.
Study of Uranium Accumulation Mechanism and Physiological Responses of Eichhornia crassipes and Pistia stratiotes
Authors: Li Shi You , Wei Qing Peng , Xie Shui Bo , Liu Ying Jiu , Yan Zheng
Published: December 2014

A hoagland solution hydroponic experiment was carried out to study the short-duration (8 d) accumulation ability of uranium byEichhornia crassipesandPistia stratiotesunder different uranium concentration. Effects on antioxidant enzymes (SOD, CAT, POD) activity, malondialdehyde (MDA) and free proline content ofE.crassipesandP.stratiotesunder uranium stress were discussed. The results show the activity of antioxidant enzymes is increased under 0.1~1 mg·L-1uranium stress, MDA content is at lower level indicated that antioxidant enzymes play an important role in alleviating lipid peroxidation induced by uranium stress. Under 5mg·L-1uranium stress, the antioxidant enzymes activity ofE.crassipesis at higher level and MDA content is lower,nevertheless, theP.stratiotesis just the opposite, indicating thatE.crassipestolerated higher concentrations thanP.stratiotes. The activity of antioxidant enzymes is inhibited under higher concentration (20 mg·L-1and 50 mg·L-1) uranium stress. As an important osmoregulation material, free proline content of both plants is more than the contrast.
The Process and Characteristics of Urban Spatial Structure Research in China
Authors: Tian Ye , Zu Qi , Yuan Jing Jing
Published: December 2014

Urban spatial structure is the city in a variety of material, energy and social culture accumulation in space distribution and combination of the state. It is also the core issue of urban spatial development. Author studies China's urban spatial structure research, and find that China's urban spatial structure research mainly concentrated three times: 1980’s, 1990’s and since 2000.Research emphasis of each period is different. Through the process of urban spatial structure research, author sum up that the research in China has the following features: emphasis on urban spatial structure, advancing with The Times, etc. Authors hope this article can have the implications about the future of China's urban spatial structure research.
Research on the System Model of Coupling Evolution Mechanism
Authors: Wang Yu Mei , Lin Shen , Sun Yu Jie
Published: December 2014

Technology innovation, knowledge innovation and talent development were treated as a mutually embedded parallel process. Technological innovation as the carrier , it analyzed knowledge innovation, talent development and the coupling evolution mechanism in the different stages of technology innovation.
A Research on Characteristics of Customer Value Formation Based on Markov Chain
Authors: Hu Deng Feng , Li Xin Wei , Yang You Chao
Published: December 2014

A Markov chain can be fully determined by the statistical properties of its initial stateand the transfer probability matrix. According to this clue, the authors make a metrological testing model on the customer value and its formation characteristics, and then find that the customer value metrological testing model on Markov chain can well illustrate the characteristics of a corporate customers’ value.
The Research Progress of N2O Emission Regularity in Wetlands and the Nitrogen Interaction on its Emission
Authors: Xie Wen Xia , Cui Yu Qian , Du Hui Na , Chen Jian Lei , Zhu Kun Jie
Published: December 2014

N2O is an important greenhouse gas. The emission of N2O in wetlands is an important part of global N2O flux. At present, the two leading factors mainly focus on the emission regularity of N2O and the emission mechanism of it in the estuary wetland ecosystem at home and abroad. The main sources of wetland N2O are the soil nitrification and denitrification. Research shows that, the N2O emission is directly related to the availability of the soil nitrogen and the salinity reduces the production of N2O by restraining the soil nitrification and denitrification process. Therefore, it is necessary to strengthen the study on the emission characteristics and influence factors of N2O in the coastal wetland.
Research on the Connotation of Life Cycle of Ship
Authors: Fang Lei , Zhuang Pei Jun
Published: December 2014

Aiming at the problem that imperfections and discontinuities of ship's life-cycle theory in teamwork, cross-industry and application tools, the ship trajectories and space motion of ship in the whole life cycle were analyzed, and the space-time network model was established to discuss the changes and relations of all various stages and the connotation of life cycle of ship, the life cycle of ship was divide into the design, construction, operation and dismantling phases with the introduction of decision-maker, and pondered on the significance of the theories and models on green ship.
Modeling and Rationing Evacuation in Russia
Authors: Parfenenko A.P.
Published: December 2014

The following article presents a methodology for developing processes concerned with modeling human evacuation and spread of hazardous factors in a fire. This methodology is utilized during evacuation exits norming in buildings and other structures.
Seismic Mortality Estimation in China: A Comparison of Three Empirical Models
Authors: Jin Jing
Published: December 2014

Earthquake is common but one of the major natural disasters that cause heavy casualties in the world. In China, half of the deaths caused by natural disasters were brought by earthquakes since 1950. Undertaking effective relief operations when an earthquake strikes is important not only for life saving but also for the sustainable development of the affected area. Estimation of seismic mortality is an important part of relief operation. Based on the analysis of existing seismic mortality estimation models, the paper compares three empirical models of estimating the deaths caused by four earthquakes in China, discovers large errors in the models, and proposes that the models should be improved to meet the needs of emergency rescue. The paper also discusses factors that affect model precision and makes some suggestions on how to improve these empirical models.
Fire Situation Forecasting Based on Support Vector Machine Optimized by Genetic Algorithm
Authors: Liang Yue , Guo Hong Xia
Published: December 2014

Improve the prediction accuracy of fire situation reasonably has great significance for fire prevention and fire deployment. Firstly, build a fire situation prediction model by using support vector regression; followed adopt genetic algorithm to select the optimal combination of parameters; finally provide empirical analysis by taking Chinese Zhejiang Province, test reliability and practicality of model. The results showed that: the fire prediction model based on support vector machine has ideal learning ability and generalization ability; the predicted results possess a high precision, thus providing the new idea and method for predicting fire situation.
Applications of Chemical Factors in Steroid Bioconversion
Authors: Li Xiao Jing , Wang Xiao Jie , Ji Yun Zhe
Published: December 2014

Microbial conversion is a key process in the biosynthetic routes of steroid medicine.The whole process of bioconversion includes two essential steps: (1) enzymatic reaction step where the enzyme-catalyzed substrate transformation takes place inside the cells, and (2) diffusion step that includes the diffusion of substrate molecules from the surface of solid substrate particles into bulk media (i.e., the solubilization of solid substrate), the diffusion of solubilized substrate molecules from bulk media into cells, and the diffusion of formed product molecules from inside cells into bulk media. In this review, the applications of three chemical factors (growth regulator,surfactant and cyclodextrin), and their effects on steroid microbial enzymatic conversion were extensively discussed, which provides insights into the development of novel approaches to cost-effectively improve biosynthesis efficiency in steroid medicine.
Development and Application of Decision Support System for Agro-Technology Transfer DSSAT under Water Resources Management
Authors: Shi Yuan , Li Yi Nong , Zhang Cheng , Bai Mei Jian , Wang Yu Kun
Published: December 2014

The Cropping System Model (CMS) simulates growth, development and yield of a crop growing on a uniform area of land under prescribed or simulated management as well as the changes in soil water, carbon, and nitrogen that take place under the cropping system over time. Decision Support System for Agro-technology Transfer DSSAT is one of many cropping system models and has been relatively widely applied. In this paper, the development history, the system structure, and the application field of the model system are summarized, and the principle and mechanism of the model to simulate the soil-water balance in the study of water resources management and the representative study results obtained by the scholars in China are analyzed in detail, so as to provide references for relevant studies and applications.
Experimental Study and Models Comparison for Solute Transport through Riparian Zones
Authors: Chen Zhou , Wang Jin Guo , Zhang Wen Zhang , Shi Jia Hui
Published: December 2014

Solute transport through riparian zone was studied experimentally and numerically with the consideration of silt layer. The silt layer had markable change on flow field and lead to a significant variation of the breakthrough curves (BTCs). BTCs of solute tracer tests show non-Fickian features as early arrival of peak value and long tailings. BTCs were fitted by advection dispersion equation (ADE), mobile and immobile model (MIM) and the continuous time random walk (CTRW) models. MIM and CTRW can fit BTCs better than ADE and MIM fit better on the capture of the peak value and CTRW fit better in description of the long tailing.
Modification Effect Analysis of Inconsistency Runoff Series
Authors: Xu Bin , Chen Guang Cai , Xie Ping
Published: December 2014

Affected by the climate change and human activities, the consistency of Measured Runoff Series (MRS) is changing. The methods of reduction modification and current modification are commonly used to the inconsistent MRS in domestic, the modified runoff series will be used to water resources assessment as the basic data, but the methods that used to estimate the consistency of Reduction Runoff Series (RRS) and Current Runoff Series (CRS) is subjective to some extent. With the MRS/RRS/CRS from 1956 to 2000 of Huayuankou Station at Yellow River, the influence degree of human activities and climate change to the inconsistency of runoff series were analyzed preliminarily, then the hydrological alteration diagnosis system was used to estimate the consistency of runoff series, with the parameters of Hurst coefficient and the alteration classification, the modification effect of RRS/CRS was analyzed. The results show that, although the consistency of RRS/CRS was improved, the alteration still existed, they should be modified further more to satisfied the requirement of water resources assessment, or the assessment method that adjust to the inconsistent runoff series should be adopted.
The Relationship of Debris Flow Hazards and Rainfall Erosivity in the Bailong River Basin of Southern Gansu Province, China
Authors: Zhang Peng , Shu He Ping , Ma Jin Zhu , Wang Gang , Tian Li Ming
Published: December 2014

Rainfall is one of the main factors that drive soil erosion, leading to environmental problems such as increased frequency and severity of debris flows, and ecosystem damage. Rainfall erosivity represents the potential of rainfall to cause soil erosion, and is determined by a combination of rainfall intensity. The spatial and temporal distribution of rainfall erosivity was analyzed to get its relationship with the debris flows in the Bailong River Basin in China's Gansu Province. The mean annual amount of erosive rainfall accounts for 36.0-47.1% of annual precipitation. The annual mean rainfall erosivity amounts to 798.8 MJ mm ha-1 h-1 yr-1 in the Bailong River Basin. A positive correlation between annual precipitation and annual rainfall erosivity was demonstrated at all 18 rainfall stations. However, further research is required to reveal the key factors that explain soil erosion and debris flows.
Watershed Hydrological Model HSPF Based on BASINS and the Uncertainty Analysis
Authors: Wang Xu , Zhang Jing
Published: December 2014

Water is an important guarantee of sustaining life and social economic development. However, at present, our country is faced with more and more problems about water resources, such as water shortage and water pollution. Thus, it brings a chance to hydrological model for research, development and application, and it is also a huge challenge. HSPF model belongs to the distributed hydrological model, based on the meteorological and hydrological data, it can mainly simulate the water quality of natural water system and be used to predict the long-term effects that human activities on water, sand and agricultural chemicals, such as soil erosion and non-point source pollution. This paper mainly introduces the concept of hydrological model, watershed hydrological model, the software BASINS, the watershed hydrological model HSPF and the process mechanism of model building that include data processing and model testing, at the same time, it also introduces the calibration method of model certainty, including the manual adjusting parameter and the calibration standard. Finally, the article also discusses the problems about the uncertainty of the model, and gives some suggestions.
Windbreak and Soil-Reinforcement Benefit Evaluation for Wind Erosion Area
Authors: Liu Fu Quan , Liu Jing , Zhang Xin , Yin Rui Ping , Nao Min , Liu Peng Fei , Zhu Hong Hui
Published: December 2014

In order to research the mechanical mechanism of plants anti-erosion and provide some basis to screen windbreak and soil-reinforcement specie for wind and water complex erosion area. This research selected Caragana microphylla Lam, Salix psammophila C.wang et Ch.Y.Yang, Artemisia sphaerocephala Krasch and Hippophae rhamnides Linn four kinds of soil and water conservation plants of Inner Mongolia Ordos as the research object. During the period of spring gale, thirteen indicators (single shrub reduce wind velocity ration, shelterbelt reduce wind velocity ration, community reduce wind velocity ration, taproots tensile strength, represented root constitutive properties, represented root elasticity modulus, lateral roots branch tensile strength, accumulation surface area, root-soil interface sheer strength, interface friction coefficient, length of accumulative root, root-soil composite cohesive, root-soil composite equivalent friction angle) of foliage windbreak and root mechanical properties were evaluated by the analytic hierarchy process (AHP). The results showed the index of windbreak and soil-reinforcement were in the sequence of Salix psammophila C.wang et Ch.Y.Yang (0.84) > Caragana microphylla Lam (0.45) > Artemisia sphaerocephala Krasch (-0.47) > Hippophae rhamnides Linn (-0.83). Therefore, Salix psammophila C.wang et Ch.Y.Yang could be regarded as the important anti-erosion specie for wind erosion area.
Simulation of Non-Point Source Pollution Based on SWAT Model - A Case Study of Ashi River Basin
Authors: Ma Fang , Jiang Xiao Feng , Wang Li , Shan Dan , Liang Xiong Wei , Li Zhe
Published: December 2014

The Soil and Water Assessment Tool (SWAT) model was examined for its applicability in modeling stream-flow and nutrients (total nitrogen, TN and total phosphorus, TP) in Ashi River Basin, China covering an area of 3545 km2. This model was calibrated by using the observed data of monthly flow during 1996-2005 and nutrients (TN and TP) during 2006-2008, and validated by using the observed data of monthly flow during 2006-2010 and water quality during 2009-2010. For stream-flow, the monthly results of RE, R2 and ENS values reached 6.42%, 0.61 and 0.59 respectively for calibration period, whereas these were-12.83%, 0.69 and 0.67, respectively for validation period; for TN calibration, values of RE, R2 and ENS were-18.33%, 0.64 and 0.55 respectively, and for validation period they were-17.34%, 0.68 and 0.57 respectively; for TP calibration, values of RE, R2 and ENS were-4.32%, 0.61 and 0.56 respectively, and for validation period they were-18.02%, 0.67 and 0.58 respectively. Results show that SWAT has applicability in modeling stream-flow and nutrients (TN and TP) in cold and flat area.
Variations of Water Vapor Transports in Three Rivers’ Headstream during 1971-2010
Authors: Fu Bi Tao , Zeng Xiao Fan
Published: December 2014

Trend of water vapor transports in the Three Rivers’ Headstream region (China) during 1971-2010 was analyzed based on the applicability analysis of the NCEP/NCAR I reanalysis data in contrast to two kind of data: the daily wind and specific humidity of the R1 data, and the radiosonde data in and around the region. The results show that the meridional water vapor fluxes in the region decreased significantly, causing the net water vapor budget decreasing. The decadal variations of water vapor fluxes in the 1970s and 1980s are relatively smaller than those in the 1990s and 2000s. During 1971-2010, the water vapor budget showed an obvious decreasing trend in spring, summer and autumn, while no significant trend in winter. Overall, the water vapor transport into the region decreased significantly, especially in July and September, which had adverse impacts on precipitation formation.
Anti-Diabetic Activity of Polysaccharides from Agaricus bisporus Mycelia
Authors: Zhou Tao Ying , Li Xing Yuan , Chen Nian You , Wang Zi Lin , Yu Liang Bin , Yang Hui De , Bi Yu
Published: December 2014

The present study was carried out to evaluate the anti-diabetic activity of polysaccharides from Agaricus bisporus mycelia (PABM) in alloxan-induced diabetes mellitus (DM) mice. After administration with 100, 200 and 400 mg/kg body weight of PABM to DM mice for 28 days, the effects of PABM on the body weight, blood glucose, serum insulin, total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels were monitored. The results showed that the PABM could increase body weight, serum insulin and HDL-C levels, as well as decrease TC, TG and LDL-C levels in DM mice. PABM possess anti-diabetic activity.
Study on GIS Framework and Spatial Data Mining Model of China Highway Natural Regionalization
Authors: Zhou Huai Zhi , Wei Dong Xuan , Yang Hong Zhi
Published: December 2014

The main task of highway natural regionalization is to reveal the regional differences of the natural environment of highway engineering, and provide scientific basis for highway construction decision. To have a quantitative and automatic study on China Highway Natural Regionalization, obtain scientific and objective regionalization conclusion, we studied the framework, spatial data mining model and development methods of China Highway Natural Regionalization GIS (HR-GIS). This paper studied integration method and framework of HR-GIS according to the guideline and methods of the research of Natural Regionalization for China Highway. Based on object-rational model, the spatial database has been built for massive data management. The spatial data mining methods were put forward to accomplish quantitative calculation of environmental indices. Using ArcGIS Engine technology, the HR-GIS has been developed and completed, and it has the functions of spatial analysis and information inquiry of natural regionalization.
Analysis in Stability of Monitoring Network for Deep Foundation Pit Based on Mean Spacing Method
Authors: Sun Xiao Lei , Zhang Wen Chun , Li Wei Dong
Published: December 2014

Based on establishing monitoring network in accordance with the requirements of criterion, monitoring network for deep foundation pit in the people's hospital of jilin province has been taken as research object to collect multi-period network information. Based on free net adjustment method, the combined adjustment has been carried out in multi-period plane network. Choosing displacement variation of two control points as mean spacing in plane network, and using mean spacing method program in MATLAB platform to calculate sample and population variance of observed value, structure F distribution and analyze the stability of monitoring points. The results show that using mean spacing method can rapidly distinguish the stability of monitoring network and points, which offers reliable gist for monitoring project.
Environmental Impact Evaluation of Underground Mining Activities Using InSAR Technique
Authors: Sheng Yao Bin , Shen Yan , Xu Shu Lin
Published: December 2014

This papers deals with the study of environmental impact assessment of underground coal mining activities. InSAR technique was utilized in this paper to monitor the mine subsidence caused by underground mine extractions. The study area is in Chongqing municipality in west of China, and the studied coal mine has been founded for more than 80 years. Two ALOS PALSAR images were used in this study; the time interval of two image acquisition time is approximately two years and one month. The underground mining-induced subsidence could be easily identified from the unwrapped interferogram, and the maximum subsidence value was around 32.8 centimeters.
Effect of pH on the Desorption of Trace Metals by Different LMWOAs from a Field Soil
Authors: Li Yu Shuang , Hou Yong Xia , Song Xue Ying , Sun Li Qi , Li Shuang , Guo Qian , Hu Xiao Jun
Published: December 2014

Effects of initial pH on desorption of copper (Cu), cadmium (Cd), and lead (Pb) by different low molecular weight organic acids (LMWOAs) from soils were examined. Cu, Cd, and Pb removal by LMWOAs was highly dependent on the initial pH. With an increase in pH, the amounts of the three trace metals desorbed by malonic acid and DL-hydroxybutanedioic acid sharply decreased, and desorption of Cd and Pb by malonic acid followed the same trend. These results indicate that pH was the dominant factor governing the release of trace metals by LMWOA extraction. When the pH of the solutions was not adjusted, malonic acid was found to be most effective in extracting Cd and Cu from the field soil. Desorption of both Cu and Cd from soil followed a descending order (malonic acid >citric acid > DL-hydroxybutanedioic acid) that was consistent with the acids’ acidity from strong to weak. However, Pb desorption followed a release order (citric acid > malonic acid > DL-hydroxybutanedioic acid) that was well matched by the same sequence in the stability constants of their produced Pb-ligand complexes.
Research on 3D Tunnel Modeling Based on Close-Range Photogrammetry
Authors: Li Wei Dong , Lin Nan , Chen Xu
Published: December 2014

Combined with the experimental tunnel actual environment to select the appropriate control points as the logo, layout tunnel three dimensional modeling control network. using high-precision total station TM30 to control, measure and acquire image control points coordinate. in the following field collection imaging principle, the actual target of image acquisition, 3D modeling of tunnel based on the software platform of Lensphoto, the research results show that, the tunnel homonymous control point coordinates measured by Lensphoto three-dimensional model and using high-precision total station TM30 observations are of basic agreement, the error in the centimeter level, verified the feasibility of using digital close range photogrammetry in actual measurement of tunnel engineering,has the long-term guiding significance to the tunnel three-dimensional digital information collection and safety production.
Model Establishment Based on Cultivated Land Quality of WebGIS Provincial Level Management Information System Evaluation
Authors: Liu Tao , Li Ting Xuan , Zhang Xi Zhou , Wang Yong Dong , Zheng Zi Cheng
Published: December 2014

In recent years, issues including thinner plough layer of the cultivated land, water and soil loss of the arable soil, secondary salinization of the soil, desertification, soil acidification, soil pollution, soil quality degradation and others are increasing day by day, in order to safeguard food security of our province, increase rural income and accelerate agricultural development, it is needed to strengthen the protection of the important basic resources of cultivated land. Through evaluating the cultivated land quality and establishing the database of the cultivated land level, it can directly provide the basis for the food production and crop planting structure adjustment. Accordingly it can develop featured agriculture, exert the regional advantage as well as improve the utilization efficiency of the cultivated land resources. Take JY city as an example, the basic data of the cultivated land quality can be obtained by evaluating the cultivated land quality of JY city.
Flow Injection On-Line Distillation Method for Determination of Cyanide in Water
Authors: Zhao Jun Mei , Bi Hui Chao , Li Yi , Bi Hai Chao
Published: December 2014

Purpose The flow injection distillation (zinc acetate solution) was changed to be 5% phosphoric acid in the method of determination of cyanide. Application Cyanide in groundwater was measured by FIA6000 + automatic flow injection analyzer directly. Results In the 2.0-100.0μg/L range, the linear correlation coefficient was greater than 0.9, the recovery was 86.1% -100.8%, relative standard deviation 1.3% -3.8%. Conclusion This method not only reduces the white crystals [Zn (OH)2] on the pump tube blockage, making the operation more simple and efficient, but also for the detection of a large number of groundwater samples.
The Intelligent Classifier’s Building of Typical Vegetation Based on Hyper-Spectral Data
Authors: Zhang Jie , Zhao Hao Yan , Zhang Min Xia
Published: December 2014

With 3S comprehensive analysis on vegetation and the further development of hyper-spectral technology, the dynamic monitor of large area vegetation in long-term has become the trend. Intelligent process, combined the remote sensing data and field data, constructing dynamic monitoring model, plays an important guilding role in ecological security and balance. By using hyper-spectral remote sensing data of desert vegetation, three groups of spectral characteristic parameters were selected as input data of typical desert vegetation in the research, and vegetation types were selected as output data. Typical vegetation classifier was constructed based on the BP neural network model to study the vegetation classification.
Application of High-Precision Magnetic Survey to the Investigation of Mineral Resources in Halaganlawusu Area, Inner Mongolia
Authors: Liu Qiang , Peng Run Min
Published: December 2014

In this paper 1:10 000 high-precision magnetic survey work has been done using GSM-19T proton magnetometer in Halaganlawusu area. There were data processing including gridding, filtering, reduction to the pole, continuation, derivation, and so on. By precise interpretation and inference with magnetic anomaly, the distribution characteristics of basic rock mass was found out. According to the magnetic survey data and geological research, fitting-inversion of measured magnetic section P1, P2 were done. It preliminarily concluded the distribution characteristics of underground ore rock mass and achieved the effect of the geophysical prospecting.
Carbon Isotope Fractionation Behavior of Secondary Biogenic Coalbed Methane Generated from Lignite Samples Based on Parent Methanogen
Authors: Wang Ai Kuan , Qin Yong , Shao Pei
Published: December 2014

Simulation experiments on biogenic coalbed methane were conducted under an anaerobic condition provided by an anaerobic glove chamber and using parent anaerobic methanogen. These experiments aimed to analyze the isotope fractionation behavior of secondary biogenic coalbed methane generated from the lignite samples collected from Zhaotong Basin, Yunnan Province, China. Results showed that the δ13C1 values of the simulated biomethane varied from −52.31‰ to −58.41‰, which were in the normal distribution range compared with those of biogenic methane. Given the organic maceral in the parent rock, the methanogen used, and the biological generation pathway of CH4, δ13C1 values continued to decrease as the simulation experiment proceeded. The carbon isotope ratio transferred from raw coals to biogenic methane in the simulation, indicating the significant relationship of source material inheritance. The fractional degree of δ13C1 was probably controlled by the organic maceral component in coal, which was manifested by the positive correlation between δ13C1 and humic matter content, as well as the negative correlation between δ13C1 and inertinite content.
Case-Based Reasoning with GIS to Oil-Gas Reservoir Comprehensive Mapping
Authors: Chen Jian Hua , Wang Wei Hong , Li Jun Wen
Published: December 2014

Oil and natural gas are very important. As reservoir geological phenomena have characteristics of complexity and nonlinearity, this paper presented a new approach of case-based reasoning with GIS to oil-gas reservoir comprehensive mapping, to which the characteristics of geological phenomena and the spatial relations among them are much considered, the reasoning is based on the attribute similarity reasoning and the spatial similarity reasoning. Experiments to the east region adjacent to Sulige gas field in north China were carried out. The results show that this approach is effective and much efficient, and it may have certain universality to similar problems or phenomena.
Sedimentary Sequence of Different Salinization Stages Lower Es3-Upper Es4 in Jiyang Depression
Authors: Yang Wan Qin , Yin Yan , Zhu De Yan
Published: December 2014

This paper establishes the lithological sequence of different salinization stage through the corresponding relation between the salinity and salt minerals. It develops salt gypsum rock-glauber's salt-gypsiferous mudstone-dolomitein in brine stage, and stratiform limestone-lamina argillaceous limestone/ lime mudstone-stratiform argillaceous limestone in salt water stage and stratiform argillaceous limestone/ lime mudstone-massive lime mudstone/ massive mudstone in brackish water stage. The shale sedimentary evolution model is established, with climate changing from the hot dry to wet, and water from shallow to deep, and salinity from high to low, lithological sequence is gypsum-carbonate-argillaceous limestone - lime mudstone and mudstone.
Enrichment and Separation of Coal Mine Ventilation Methane and Engineering Education
Authors: Zhu Tao , Du Shuang Jie , He Xian Xian
Published: December 2014

Due to the large flow, low concentration, low enrichment efficiency, potential safety hazards and the difficulty of comprehensive utilization, it is a big challenge for the development and application of enrichment and separation technology for coal mine ventilation methane (CMVM) at home and abroad. And many countries paid more and more attentions to resolve this problem. In this paper, we comprehensively introduce the research progress in the field of gas enrichment and separation of CMVM, and analyze the related research and application situation. Then, we put forward the enrichment and separation of CMVM in the future development will focus on high efficient adsorbent and adsorption & separation & enrichment technology and equipment, etc. in order to effectively form the system technology of separation & enrichment of CMVM. So we can provide technical support and auxiliary equipment for the domestic related enterprises, and ensure the mine safety and CMVM utilization. The application of CMVM in the laboratory can make mining engineering students learn how to use environmental technology to realize energy saving and emission reduction in coal mine.
Experimental Study of Mechanical and Seepage Characteristics of Two Kinds of Coal Samples
Authors: Li Wen Pu
Published: December 2014

Mechanical and seepage characteristics of raw coal samples are the most important research contents of enhancing coal bed methane recovery, but the produce of raw coal sample is very difficult. Based on gas seepage instrument, mechanical and seepage characteristics were performed on normal briquette coal samples and coal samples containing gypsum. The results show that it can increase the cohesion and intensity level by adding gypsum in briquette coal. Porosity and permeability of coal containing gypsum is less than ordinary briquette coal sample. Permeability with axial strain curves of two kinds of coal samples can be fitted with a quadratic function well. In expansion stage, volumetric strain of ordinary coal sample is much smaller than the coal samples containing gypsum. The research has an important guiding significance on enhancing coal bed methane recovery and gateway supporting.
Rugao Area Pterocarya stenoptera Leaves Tannin Extraction Technology Research
Authors: Zhang Hong Liu , Wang Zhi Wei , Xia Peng Fei
Published: December 2014

Department of Pterocarya stenoptera dicotyledonous juglandales juglandaceae Pterocarya plants, the whole body can be used as a medicine. This article use the continuous reflux method to studying the extraction process of Pterocarya stenoptera leaves of tannins in the area of Jiangsu Rugao. Through single factor experiment and orthogonal experiment to obtain continuous reflux method was used to extract Pterocarya stenoptera leaves of tannins the optimum technological conditions. Through to the extract of ultraviolet and GC-MS analysis results show that, different extraction agents, tannin content of the extractive and chemical composition are different. Deionized water and ethanol aqueous extract of difference for Pterocarya stenoptera leaves decoction and alcohol mechanism of two kinds of different uses for the treatment of disease research to provide the reference.
Numerical Analysis for the Influence of Mining Deep Coal Seam on Oversize Normal Fault
Authors: Zhai Xin Xian , Zhang Shi Wei , Ma She Jun , Li Guang Sen
Published: December 2014

The F2 fault Guo in Tianyu Coal Mine belongs to the oversize normal fault, and mining deep coal seam has an influence on the floor water-inrush. Therefore, study the reasonable width of the fault protected coal pillar is a great significance for the mine safety production. With different advance distances of coal face into the fault hangingwall, the authors, by FLAC numerical calculation, studied the characteristics of plastic zone and stress field in front of the coal face. The results show that influence zone scope of moving abutment pressure is about 70~ 80m. The fault is still in the pressure-relief area when it is in the moving abutment pressure zone. The conclusion is conducive to the stability of F2 fault Guo, to prevent the floor from water-inrush, when the reasonable coal pillar width of the fault is wider than 80m.
Experimental Research on Erosion of P110 Tubing during Perforating
Authors: Sun Hu , Ning Zhi Jun , Wang Zu Wen , Li Zhen , Wang Zhi Guo
Published: December 2014

Erosion is a main failure of tubings and downhole tools in Changqing gas field. It is necessary to evaluate the erosion rate for the safety of tubing and strings. In this paper, the erosion of P110 steel, in the 0.2%wt guar gum fracturing fluid which contains sands, is investigated by weight loss method in the self-made jet experiment device. It is indicated that the erosion rate increases with the increment of slurry velocity exponentially. When the slurry velocity is in low velocity area, the electrochemical corrosion of dissolved oxygen dominates in erosion mechanism; when slurry velocity increases into middle velocity area, the weight loss is controlled by the synergism of corrosion-erosion; and when the slurry velocity increases into high velocity area, the weight loss rate is dominantly depended on erosion of particles. The results can provide guidelines for large-scale fracturing work of Changqing gas fields.
Artificial Gas Cap Flooding Technology of Complex Fault Block Reservoir
Authors: Diwu Peng Xiang , Sun Chuan Zong , Liu Rui , Zhao Wen Yue
Published: December 2014

Complex fault block reservoir is a typical complex reservoir. Given the special structural characteristics and production technologies, develop level is very low. It is necessary to conduct the gas-flooding methods and technologies policies research. In this paper, based on structural characteristics, formation properties and development feathers, geological and numerical model were built, remaining oil distribution regularities and several influential factors were also analyzed. This research has a good meaning for Shengli Oil Field development.
Influence of Production Profile Engineering Design for Horizontal Well Testing Construction
Authors: Wang Xiao Hua
Published: December 2014

Well testing engineering design must be completed according to the geological and engineering tasks and the actual condition of the well before logging, and then the test preparation completes according to the design. The whole construction process is carried out in accordance with the engineering design, For the complex test cases, it is need to adjust the testing process according to the basis data of engineering design and actual situation, engineering design is very important for the construction of production profile testing of horizontal wells. Engineering design can improve the test efficiency, ensure the accuracy of test data and test safety, reduce the cost of testing. This paper analyzed the role of engineering design in the testing construction and expounds the influence of engineering design for test construction by way of example.
Integrated Formation Evaluation of a Complex Tight Oil Reservoir in Junggar Basin, Northwest China
Authors: Wu Fang Fang , Zhang Jin Chuan , Zhang Hao , Wu Jin Long
Published: December 2014

Jimusaer tight oil reservoir is characterized by complex lithology, low permeability and high total organic carbon (TOC) content. These features make conventional logging responses very complicated and bring big troubles to reservoir identification. Horizontal well drilling is extremely difficult due to high heterogeneity and uncertain faulting. To maximize oil production with low cost, an integrated solution is provided. First, accurate reservoir characteristics of the pilot well was got using an unconventional evaluation approach by combining capture spectroscopy log, micro-resistivity imager log, nuclear magnetic resonance log, et al. Second, structure analysis for sidetracking well and well correlation between the sidetracking well and the pilot well were done to guide the horizontal section drilling. Third, reservoir quality and completion quality were evaluated for horizontal well, and a 3D structural model was built to optimize the stimulation design by combining reservoir quality, completion quality and natural fractures.
The Calculation of Apparent Permeability for Shale Gas Considering Adsorption and Flow Patterns
Authors: She Wen Xu , Chen Jun Bin , Zhang Jie , Wei Bo , Wang Han Qing , Bai Rui
Published: December 2014

The flow pattern is unique in a certain range of pore size divided by the Knudsen number. In order to characterize permeability of nanopore in shale gas reservoir more accurately, the formulas of nanopore permeability are put forward considering the influence of adsorption gas and flow patterns. After the calculated results were compared and analyzed, the conclusions are obtained as follows: (1) Pore size is the main factor to determine the flow pattern; (2) There are three main flow pattern in the nanopore of Longmaxi formation shale reservoirs, slip flow, Fick diffusion and transition diffusion, meanwhile Darcy percolation and Knudsen diffusion do not exist; (3) Flow pattern has great influence on apparent permeability and adsorption has a greater impact in a high pressure condition (greater than 20MPa).
Numerical Simulation of Hydrocarbon Migration and Accumulation Process
Authors: Wang Chen Chen , Ding Jue , Weng Pei Fen
Published: December 2014

Oil-gas migration is an important process of the reservoir formation. Based on this discussion, a numerical simulation was conducted to study on oil-gas migration and aggregation. With considering the flow behavior of gas-liquid two-phase flow, based on Navier-Stocks equations and the Darcy’s law, the movement characteristics of natural gas within the typical fault passage are predicted by using the finite volume method and pressure-velocity coupled algorithm. The velocity distribution of natural gas is discussed under the primary migration condition, as well as the diffusion concentration at different locations. Moreover, the position of spill points affecting natural gas aggregation is analyzed, which provides a theoretical basis for predicting reservoir formation and transport processes.
Improved Method on Traffic Flow Optimization Ground Delay Program
Authors: Li Fei
Published: December 2014

This article develops a flow model of high altitude traffic in the National Airspace System using an Eulerian description of the network with hyperbolic partial differential equations. Existence and uniqueness (well-posedness) of a solution to the system of partial differential equations on a network is established. Subsequently, an optimal control problem is studied with the junction coefficients as control variables. We use a fully discretised adjoint approach and we implement it on a network with 16 links and 5 junctions created from the enroute high altitude jetways between the Oakland and Salt Lake City air traffic control centers. The aircraft flows on the final link of the network with and without control are compared and the results demonstrate the efficiency of the method developed in the article.
Information Fusion Technology in Internet of Things: A Survey
Authors: Zhang Li Xia
Published: December 2014

According to the technical support need of Internet of things, multi-source information fusion technology makes a contribution to saving network resources, getting accurate information, and improving the efficiency of information transmission in the Internet of things. In this paper, we firstly put forward the hierarchical structure of the Internet of things, and then we discuss information fusion technology from two aspects: information transmission process combined with routing, and analysis of information fusion technology. We give an overview of various algorithms in each category by summarizing design approach, benefits, and drawbacks. And finally, we list the future development of information fusion.
Intelligent Monitoring of MSW Collection and Transportation System
Authors: Tang Jun , Yao Wei Jun , Li Meng , Xu Jie , Gu Xue Feng , Zhang Li Jun , Liang Xuan Ye , Zhang Lei
Published: December 2014

MSW collection and transportation system is a complex process. In this study, taking Dalian as an example, an intelligent monitoring platform for the entire process of MSW collection and transportation was established which integrated radio frequency identification technology (RFID), global positioning system (GPS), mobile data services GSM/GPRS and geographic information systems (GIS). Systematic analysis of intelligent monitoring on MSW separation pilot indicated that the intelligent monitoring could realize the informatization of MSW collection and transportation, solving the current problem of lower efficiency and poor management of collection and transportation system.