bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Analysis of Creep and Longitudinal Cracks Effection on PC Bridge Deflection
Authors: Wu Xun , Li Jie , Yi Xian Shui , Zhang Zhi Chao
Published: September 2014

This paper presents a three-dimensional entity model to analyze the creep effection of PC continuous rigid frame bridge and simulate the impact of longitudinal cracks at the bottom of mian span on the deflection briefly with ANSYS software. The result shows that creep amplifies the deflection of bridge and makes the position of maximum deflection move to the center of mian span. And the longitudinal cracks of mian span don’t make great contribution to the deflection of PC continuous rigid frame bridge directly. Actually, the cracks change the stress state of the bridge’s section, which results in the risk of web cracking and further the stiffness degradation of structure. The stiffness degradation increases the defection of bridge to a great degree finally.
Research and Analysis of Ship-Bridge Collision
Authors: Liu Kuo , Yang Gang , Yang Ke
Published: September 2014

In this paper, based on the theory of ship-bridge collision, large-scale finite element software ANSYS is adopted to establish the calculation model of the bridge.According to the specification of our country, the calculation of bridge collision force then compares with the actual situation.Through the calculation of collision force, the ship-bridge collision is transformed into the problem of transient analysis of collision point.This article is mainly to analyze the change of bridge energy and the stress and displacement of main parts of the bridge. Finally, this article puts forward the personal vision.
The Development Status of Bridge without Expansion Joint
Authors: Fan Xiu Ying , Zhou Yi Tang , Li Luo Ke , Zhang Ting
Published: September 2014

This paper introduces the concept of jointless bridge, classification, characteristics and use of the existing problems, and seamless bridge between home and abroad in the course of development and the current situation, Summary analysis of its technical difficulties and influencing factors.
The Evaluation of Surplus Bearing Capacity of Chipped Bridge Piers
Authors: Liu Xiao , Wang Ru Heng , Jia Bin
Published: September 2014

Bridge piers generate local destruction at impact point after suffering medium and low speed impact, and then their bearing capacities decrease a lot. In order to analyze the reliability of piers with damage, based on the formula in code, this thesis used ANSYS to analyze surplus normal section load-carrying capacity of reinforced concrete bridge piers with notches in different sizes. The relation curve between axial bearing capacity of piers and scaling area of concrete was obtained. After comparing with formula in code, a new formula was obtained, which can be used in calculating surplus normal section load-carrying capacity of chipped bridge piers.
The Pattern and Cause Analysis of Tidal Level Fluctuation of the Yangtze River in Nanjing Section
Authors: Yu Hui , Li Qiang , Wei Li Xin , Xiao Zhong Kai , Cao Shuang , Zhang Wei Guo
Published: September 2014

This paper used the Mann-Kendall test, Spearman rank correlation test, Pettitt-Mann-Whitney change-point statistics, and complex Morlet wavelet analysis method to analyze the trend, change-point, and period of the tidal level at Nanjing Station from 1950 to 2012. The results demonstrated that there was a significant increase of annual highest and lowest tidal levels, while the trend of annual average tidal level change was not obvious. Significant mutations existed not only in the term of annual highest tidal level but also in the lowest one: the annual highest tidal level increased by 0.49m after 1972, while the annual lowest one increased by 0.29m after 1982. The period of annual average tidal level, highest one, and lowest one were 10 years, 15 years, and 14 years respectively. The scale of fluctuations in the annual highest tidal level was close to the annual lowest tidal level. The cause analysis of fluctuation indicated that runoff variation was the dominant factor of tidal level change.
Subei Urban Residential Developments in Thermal Comfort Problem
Authors: Wang Jin
Published: September 2014

Many residents are superstitious so-called high-tech residential, see the technology will bring the thermal comfort, in fact, some high-tech residential only additional high-grade HVAC facility, the thermal comfort should not advocate in the northern Jiangsu area, after all, this is a high energy consumption of thermal comfort. In the north of Jiangsu Province, should promote low energy consumption of thermal comfort residential.
The Application of Energy-Saving Wall Insulation
Authors: Tong Zhi Neng
Published: September 2014

This paper expounds the importance of wall insulation energy-saving wall insulation materials, introduces the characteristics and process practice requirements. Bring forth the new through the old to accelerate energy-saving technical insulation wall material, plays a positive role in promoting to create a more comfortable living environment, provide the beneficial reference for the wall heat preservation and energy saving.
Building energy saving is the main content of environmental protection and energy conservation, is an important part of sustainable development. Residential building energy-saving work unceasingly thorough, continuously improve the energy efficiency standards, the development of many new energy-saving technology, vigorously promote the use of residential buildings. But the current level of building energy saving, but also far lower than developed countries. So the building energy conservation is an important task of building industry.
In the construction of the external retaining structure, the heat loss, the supporting structure of the external wall and a big share. Development and reform of building wall and wall energy saving technology is the main content of building energy-saving technology, the development of external insulation materials and energy-saving technology is the main way to achieve energy-saving building. Thermal insulation external wall energy saving is mainly divided into exterior insulation and exterior wall insulation two categories.
Analysis of Sustainable Development of Changsha Based on Ecological Footprint Method
Authors: Wu Lin
Published: September 2014

Ecological footprint method was used to estimate the resident’s per capita resource consumption ecological footprint and per capita ecological carrying capacity of Changsha based the statistical data from 1996 to 2009. And the Changsha sustainable development issue was discussed. The results shown that during 1996 to 2009, Changsha per capita ecological footprint of biological resources consumption has a fluctuated upward trend. Ecological footprint per capita consumption of biological resources was dominated. There is a deficit of per capita ecological carrying capacity in Changsha; People activities impact on the regional ecosystem has exceeded the ecological carrying capacity, and it resulting in a greater pressure on the ecosystem. From the perspective of resources ecological carrying capacity, Changsha’s development model is not sustainable in 1996 to 2009. It should be transfer the mode of economic development, improve resource utilization efficiency, and promote the sustainable development of regional resources.
Imitation of Nature, Philosophy of Beautiful Yancheng Construction
Authors: Wang Jin
Published: September 2014

Considering the history and current situation of Yancheng City, learn from foreign advanced design concepts, design the image of the city of Yancheng, Yancheng City and ultimately determine the "green Yancheng" as the city's intention, on the basis of the construction of Yancheng city should also move in this direction, because "water Yancheng" reflects the Yancheng born personality characteristics, comply with the philosophy of nature, not to blindly, in accordance with the construction of the city's own characteristics.
Research on Space Resources Use and Traffic Organization Optimization of Belt City
Authors: Li Hong Fei , Zhang Jing Jing
Published: September 2014

From the perspective of urban morphology, this paper mainly focuses on the relationship between urban space and urban transport, and then concluded the traffic characteristics of the belt city. Through the evolution of urban spatial structure and traffic organization development in Lanzhou as an example, by analyzing the spatial relationship between space resources and transportation organization, and further explore optimization strategy of the sustainable development of city. Then putting forward its recommendations of spatial structure use and traffic organization optimization.
The Sensitivity Levels of the Parameters in SMAR Model
Authors: Dong Lei Hua , Xiong Li Hua , Shen Chen , Wang Ji Wu
Published: September 2014

The sensitivity analysis of the parameters is an essential part in the hydrological forecasting. In this paper, based on GLUE method and SMAR model, the scatters of likelihood values of nine parameters in both of Hanzhong and Mumahe basin can be generated. From the scatterplots of the parameters in SMAR model, the sensitivity of parameters can be determined by three levels that are non-sensitive level (LevelI), sensitive level (Level II) and basin-sensitive level (Level III). It is concluded that: the parameters of C, Z, Y, Kg belong to Level I; the parameter of K belongs to Level II; the parameters of H, T, G, N belong to Level III) . It indicates that the problem of redundant parameters exists in SMAR model.
The Research Progress and Prospect of Pennisetum sp. (Giant Juncao) Planting Working Mechanism
Authors: Tong Xiang Ya , Zheng Shu He , Ye Da Peng , Xie Jin Jun , Zhu Zhou
Published: September 2014

With the continuous expansion of Pennisetum sp.(Giant Juncao) planting acreage, Pennisetum sp. entire production mechanization become the inevitable trend of industrialization in order to improve Pennisetum sp. productivity and reduce labor intensity of farmers. This paper describes the value of application and promotion of the Pennisetum sp. Planting. In view of various working mechanism of Pennisetum sp. planting equipment, the situation quo of Pennisetum sp. planting equipment was summarized, the problems of planting working mechanism on the research and development were analyzed. It is indicated that a research method which was suitable for Pennisetum sp. hillside planting equipment based on the virtual prototype technology. The prospect of further research in this field was proposed.
The Influence of Traditional Chinese Icons on Interior Design
Authors: Wang Zeng
Published: September 2014

Traditional Chinese culture has such a long and splendid history that its influence on interior design shall never be neglected due to its inexhausitible vitality. As flourishing traditional Chinese culture is the result of interaction among Confucianism, Taoism and Buddism, these three traditional Chinese Schoolsl exert tremendous influence on shaping neoclassical interior design.
Research on Desorption of Suspended Sediments to TN and TP in Waizhou Reach
Authors: Gao Gui Qing , Ju Hai Yan , Zhou Hao , Liu Su Su
Published: September 2014

The physical and chemical characteristics of suspended sediment in Waizhou reach are studied.The particle size is between 0.005-0.75mm.The pH value of sediment sample is 7.1.The desorption experiment after adsorbing total nitrogen(TN) and total phosphorus(TP) saturated was carried out.The experimental results show the desorption of sediment on TN and TP reaches basic equilibrium about 8h.Desorption capacity decreases with the increase of sediment concentration.Desorption process is completed by two steps.The first step is physical desorption process quickly.The second step is chemical desorption and belongs to the process of slow response.Using the Langmuir model can better simulate the process of desorbing.The correlation coefficients of fitting with TN and TP are above 0.8 and 0.75 respectively.The higher the sediment concentration, the better fitting effect.
The Study of Precipitation Forecast Model on EMD-RBF Neural Network - A Case Study on Northeast China
Authors: Sun Xiao , Qiao Shi Fan , Xie Ji Ren
Published: September 2014

Based on the principal of forecast of Artificial Neural Network, Radial Basis Function neural network and Radial Basis Function neural network based on EMD were introduced into the field of precipitation forecasting in this article. With the precipitation data of 27 sites from1950-2010, EMD-RBF network was set up, and the difference between the predictive value and the actual precipitation data was discussed. The results showed that the correlation Of EMD-RBF forecast precipitation and actual precipitation is more than 0.9. Of all sites, the maximum relative prediction error of 17 sites is less than 10%, the maximum relative error does not exceed 15%.The EMD-RBF model had good quality on forecasting precision, which provided a new method for precipitation forecasting.
The Coupling Relationship between Forest Vegetation and Terrain of Daliuta Mine
Authors: Liu Dong Wen , Qiao Zhi Yong , Wei Ting Ting , Jiang Shu , Chen Ya Kai , Zeng Ji Yong
Published: September 2014

Taking Daliuta mine as research object, use its 2002, 2011 two same period Landsat TM/ ETM and remote sensing image as the data source, use pixel dichotomy to get its vegetation coverage evolution trend data; Use DEM digital elevation model data in the region to generate digital terrain model based on ArcGIS, and make overlay analysis with the vegetation coverage evolution trend data to study the relationship between the vegetation coverage and terrain factor of the mine area. The results showed that: From 2002 to 2011, the vegetation coverage evolution trend of Daliuta mining mainly moderate improvement and significantly improvement, and concentrated in middle altitude, low slope, sunny area.
Toxic Effects of Toxaphene for Goldfish
Authors: Wang Song Mei , Wu Xiang Yang , Xu Hai , Lu Cong Wei , Xu Yun Xiao , Zhang Fan
Published: September 2014

Toxaphene is an organochlorine insecticide, widely used in cereals, vegetables, fruits, tea and other pests. However, in killing pests, increasing agricultural production, while toxaphene aquatic creatures threat. In order to enrich aquatic organisms toxicological data, evaluate the risk to aquatic organisms toxaphene healthy growth, we use the traditional toxicological approach to study the toxic effects of toxaphene goldfish (Carassius auratus)'s. Study 5 toxaphene concentration 7d goldfish exposed catalase (CAT), superoxide dismutase (SOD), acetylcholinesterase (TChE), glutathione peroxidase (GSH-PX), malondialdehyde (MDA) effects, the results showed that: toxaphene in 0.1,0.2,0.3,0.4, 0.5 μg / L in five concentrations, these five enzymes promoting effect, with more toxaphene concentration high, goldfish liver CAT activity is stronger, the stronger the brain and liver SOD activity, the activity of the brain TChE weaker, the stronger the brain activity of GSH-PX, and the contrast with the blank, P <0.01, illustrate the five enzymes do toxaphene toxicity testing of biomarkers.
Analysis of Heavy Metal Residue in Red Grape of Different Planting Areas
Authors: Zhao Peng Yu , Liu Xia , Li Xi Hong , Tian Yu Xiu , Zhang Lu , Ma Hong Yuan , Li Yao Yao
Published: September 2014

Digestion samples, graphite atomized method and flame atomization method, determinated Cd, Zn, Ni, Cu, Pb, Cr heavy metals in fruits, soil and water of 6 different vineyards of Xinjiang. Analysis and comparison of measurement results with national standards, results showed that: Zn in the fruits of TR2 and Ni in the fruits of TR3 were close to the standard limit value. Zn in the soil of TR2 was close to the standard limit value. Cr in the soil of TR1 was 196.5835 mg/kg, which is greater than 150 mg/kg of II security level standard, so the soil was belong to III security level. Ni in water of TR3 was close to the standard limit value. They should be taken into account.
Deduction of Coordinate Transform for Instantaneous Reactive Power Theory
Authors: Zhou Xue Song , Wang Da Yan , Ma You Jie
Published: September 2014

By means of building up a three-dimension coordinate system in vector space, the coordinate transform used in instantaneous reactive power theory (IRPT) proposed by H. Akagi is deduced and through spatial coordinate transform two equivalent three-dimension coordinate systems are obtained. After rigorous mathematical deduction the transformation factor for above-mentioned three-dimension coordinate systems is achieved, thus the coefficient deduction for IRPT is solved and the zero-sequence quantity expressing three-phase asymmetrical system is directly obtained. By use of the theory of rotating phasor, the basic principle of instantaneous spatial vector detection method based on IRPT is explained. The authors’ analysis is available for understanding and improvement of this harmonic current detection method.
Study on Wind Vibration Control Effect of the Tower and Tower-Line Coupling System of the Transmission Tower
Authors: Xie Wen Ping , Xia Dong Zhou , Yang Wei Jun
Published: September 2014

Currently, the Chinese code calculate the wind loads of transmission towers and lines separately, the code methods make the loads of ground wire which was regarded as external loads force on the transmission tower, without considering the coupling effect between the tower and line, this method does not accord with the actual working state of the transmission tower. Therefore, according to the actual state of tower-tower-line coupling, this article established the finite element model of its system. What’s more, on the basis of different layout of damper system, the dynamic response and vibration reduction effect of the tower-line coupling system under different conditions were studied in this paper. The results show that, both can reduce the system’s vibration effectively while considering the tower-line coupling and with the consideration of different damper layout schemes at the same time. The third scheme which is tower head lower half part edge member bar plus dampers had the most significant vibration reduction effect. The research results can be reference for engineering design and engineering practice, it also has a certain theoretical and practical significance.
V2G Technology for Electric Vehicles
Authors: Zhou Xue Song , Kong Xiao Li , Ma You Jie
Published: September 2014

V2G technology is an important part of the smart grid,which realizes the power inter-transformation between Power Grid and electric vehicles [1]. V2G technology is introduced and the structure of charging and discharging system in V2G technology is analyzed [2]. Under synchronous rotating frame, the combination current-controlled and Voltage space vector control method is adopted, which carries out the power inter-transformation between Power Grid and electric vehicles [3].
Use of Hydrologic Time Series Data for Analysis the Karstic Drought Characteristic
Authors: Liu Li Hong , Wang Da Sheng , Huang He , Xu Guang Quan
Published: September 2014

Karstification creates significant heterogeneity of hydraulic conductivity within the aquifer, where flows are organized to a hierarchical structure, from the surface to the spring. A karstic aquifer subjected to groundwater flood and drought, as a site for the occurrence of karst groundwater, is the main or unique focus for groundwater development and utilization in southwestern China. The present paper introduces a methodology devoted to groundwater drought hazard assessment. It focuses on groundwater drought by applying of the spring time series for an estimate and categorization of operating resources of groundwater. The results show that a permit for use of water for ER1+ER2 up to 0.48 m3/s, with the exceeding probability 80% selected for representing dry. The longest drought duration time was happened in the year 1993 with the 2.9×106m3 shortage of water volume. Groundwater drought frequency analysis provides a useful tool for water management.
Design and Implementation of Content Audit System for Mobile Platform
Authors: Tang Jin Peng , Li Ling Lin
Published: September 2014

According to the requirements and characteristics of mobile Internet content security audit, designed and implemented the mobile Internet content security audit system. The system captured and processed data through a data acquisition proxy server for mobile user network access, and then set keywords by matching rules, finally carried out the content audit through the single mode and multi pattern matching algorithm.
Image De-Noising Using Deep Learning
Authors: Zhang Lan , Nie Yu Feng , Wang Zhen Hai
Published: September 2014

Deep neural network as a part of deep learning algorithm is a state-of-the-art approach to find higher level representations of input data which has been introduced to many practical and challenging learning problems successfully. The primary goal of deep learning is to use large data to help solving a given task on machine learning. We propose an methodology for image de-noising project defined by this model and conduct training a large image database to get the experimental output. The result shows the robustness and efficient our our algorithm.
The Application of SIFT Image Matching in the Information Query Based on MPI Acceleration
Authors: Li Tian Shuo , Hu Chun Mei
Published: September 2014

Currently, the community is an explosion of information society, how to quickly find the information which is our requirement has increasingly become the focus of attention in many fields. Image information is an intuitive means of expressing and describing the objective things. Fast query information by image uniqueness has become a hot topic of current research. In this paper, we introduce a method of using MPI parallel processing to accelerate SIFT image matching algorithm in order to achieve information query in museum exhibitions and other applications.
Experiment Study of Bed Sediment in Yi River Shandong China
Authors: Wang Yan , Yang Ling Qiang
Published: September 2014

Physical and mechanical tests have been performed on 2 kinds of bed sediments from Yi water system, on the bed sediments from the earth dam in Ri-zhao, and on the polluted soils from the Lin-yi city to investigate the engineering characteristics. The test shows the bed sediments in the Yi river are considered unsuitable as embankment materials according to the river design standards and the STMC manual, and so, a stabilization criterion of bed sediments needs to be established.
Investigation and Analysis of the Present Sedimentation Situation of the Small Sized Reservoir in Jiangxi and Guizhou Provinces
Authors: Li Dan Dan , Sheng Jin Bao
Published: September 2014

There are numerous small-sized reservoirs in china and many of them have the problem of sedimentation .The decrease of the capacity directly affects the benefit effectiveness of the reservoir. The author researched a recent investigation of the present sedimentation situation of the small sized reservoir in Jiangxi and Guizhou provinces, analyzed the origin and put forward some suggestions and countermeasures.
Study on Evolvement of High Beach and Deep Channel of Reservoir in the Sediment-Laden Rivers
Authors: Li Kun Peng , Zhang Jun Hua , Ma Huai Bao , Gao Guo Ming , Fan Wen Ling
Published: September 2014

According to datas of Sanmenxia Reservoir and physical model test of Xiaolangdi Reservoir during later sediment retaining period, the paper study evolvement of high beach and deep channel of reservoir in the sediment-laden rivers. The results show that: 1The evolution of high beach and deep channel is as follows, firstly, beach and channel increase synchronously , and then scour happens in channel. Channel scour and scour amount is crucial to form high beach and deep channel. 2It is found that tributaries were equivalent to the horizontal extension of mainstream riverbed. The deposition process of tributary is closely related to many factors of natural topographic condition, deposition morphology of mainstream at the confluence area of mainstream and tributary and so on. The cross-section of tributary kept uplift horizontally, and sand bar has formed in some tributary estuary. 3Rainfall erosion formed in flood period is beneficial to forming hyper-concentrated flow, to a certain extent; it can recover channel storage capacity, and play an important role on utilizing long-term comprehensive benefits. Studying evolvement of high beach and deep channel can supply some technical supports for regulating operational mode of Xiaolangdi Reservoir during later sediment retaining period and prolonging service life.
The Eco-Hydrological Demand Research on Coreiusheterodon Reproduction in the Upper Yangtze River Reserve
Authors: Chen Bing Yu , Luo Hui Huang , Yang Qing Rui , Huang Wei , Han Hui Ling
Published: September 2014

The upper Yangtze river rare and endemic national nature reserve was set up to protect the rare and endemic fish. Affected by the cascade development of the downstream reach of the jinsha river, fish habitat in the national nature reserve have been changed significantly, which will affect the reproduction and growth of the fishes.The Coreius heterodon spawning grounds were located in the Main stream of the natural reserve, andits spawning season needs certain overflowing process to lay eggs. This article used the water level and flow data from 1956 to 2012 in the Zhu Tuo stationto analysis the eco-hydrologicaldemand for Coreiusheterodon breeding. and this result can provide the reference for the ecological operation of cascade reservoirs in the downstreamof jinsha river.
Application of HEC-RAS Model in Simulation of Water Surface Profile of River
Authors: Wang Chang Hong
Published: September 2014

The series hydraulic softwares of HEC-RAS is a set of softwares volumes with strong functions and broad uses in overseas. They play an important part in river hydraulic analysis、hydrology simulation、flood forcasting、river renovation and reservoir managition and programmings.The paper introduces the composition and the function of HEC-RAS model, a one-dimensional steady and unsteady flow models were established.Using this model, the designing water surface is analogized, its operation pattern is discussed, water surface profile of some water supply works are simulated.The result indicates that the application of HEC-RAS is simple and convenient,its applicability is good.
Calibration and Evaluation of ORYZA2000 under Water and Nitrogen Managements
Authors: Pang Gui Bin , Li Yan , Xu Zheng He , Gao Huan Zhi
Published: September 2014

Rice growth model of ORYZA2000 was introduced, we used field datas to verify the parameters. The aim is to check the adaptability of model, when it is applied to simulate dry matter, leaf area and yield under water and nitrogen managements. The results showed that, the model can simulate dry matter accumulation preferable, in which the observed dry matter of aboveground, leaf and sheath fit well with simulated results. But the simulated yield is higher then observed, may be the reason due to the rice lodging at later stages. While the simulated leaf area is lower than observed, the reason is that we have the dead leaves are counted in measuring. ORYZA2000 provides a powerful tool to explore the impact on the environment as well as water-saving irrigation of rice under optimal water and fertilizer managements.
Analysis for the Characteristics of Sediment in Tarim River
Authors: Deng Shao Yun
Published: September 2014

The author had given a brief introduction of Tarim River, and the analysis of its water network and the surrounding environmental features, and a few important representative of Tarim River tributaries and the main stream of the four major hydrological stations measured runoff for many years, the annual runoff, the average annual sediment load, the annual sediment load, the annual average sediment concentration, the annual sediment concentration, the average annual sediment transport modulus, the annual sediment transport modulus index data were analyzed. And on this basis, the author had given the further analysis of Tarim River stream sediment distribution characteristics, and had described the sediment source and characteristics of Tarim River.
Friction Head Loss Calculation for the FRP Pipes of Inverted Siphon Project
Authors: Chang Sheng , Mu Zhen Wei , Wan Lian Bin
Published: September 2014

The problem that the actual operation flow rate of inverted siphon in Xinjiang can not meet the need of the design requirement has always been discussed. After comparing Cole Brook - White Formula, Jain,A.K Formula and Hazen-Williams Formula, and taking FRP pipes as the research object, this paper attempts to make use of different formulas to calculate friction loss of inverted siphon, compare and analyze the calculation results with the measured data of years of operation. Finally, it is proved that Hazen-Williams formula has relatively higher accuracy in calculating head loss and the frictional coefficient of friction to different diameters has been obtained, which can offer reference to the inverted siphon’s engineering design of FRP pipes.
Hydrocomp Design and Prediction of Hydrodynamic Performance of Propeller
Authors: Zhang Ai Feng , Zhang Tian Lei , Ding Jiang Ming , Liu Jin Yang
Published: September 2014

With the continuous development of large-scale, high-speed ship, considering economy and security of the ship, propeller design and performance research are of importance. In this paper, the best propeller is obtained by using the propeller design software HydroComp PropExpert and HydroComp PropCAD. Propeller geometry model is generated by Solidworks. Applying computational fluid dynamics method (CFD), we can take numerical simulation for the flow around the propeller. Finally, with the help of the software ANSYS, hydrodynamic performance of the design propeller can be forecasted. The results from the calculation and analysis can provide some reference for engineering practical problems and theoretical study.
Numerical Simulation of Piping Mechanism under Unsteady Flow
Authors: Ni Xiao Dong , Zhao Shuai Long , Wang Yuan
Published: September 2014

Used the numerical method, considered the rising speed of head of seepage deformation, with the aid of the method of particle flow in micro layer to study the occurrence and development of the law of seepage failure. Numerical simulation was designed based on the study of the theory. Conducting piping tests of the soil samples by controlling water head. The results show that, the effects of loaded once on the orifice area was large, and also the most insecure. And the test result verifies the correctness of theoretical analysis. The results are valuable to further probing into the piping mechanism in sandy soils.
Study on Free-Surface-Pressurized-Flow of Pressure Spillway Tunnel under Different Submerged Depth
Authors: Wang Ying Kui , Liao Ren Qiang , Zhu Jia
Published: September 2014

The free-surface-pressurized-flow is a complicated water-air two phase flow in the spillway tunnel, which should be studied in the engineering practice. This flow pattern existed from open flow to pressure flow with the submerged depth increasing, which has obvious pulsing pressure. The flow transformation and pressure distributions were observed and studied in this paper.
Defluoridation of Algerian Drinking Water by Precipitation and Adsorption Methods
Authors: Achour Samia , Youcef Leila
Published: September 2014

The aim of the study was to investigate performance of precipitation and adsorption methods in removing excessive fluoride from water samples collected from Algerian North-Eastern Sahara. Defluoridation processes were conducted using one the one hand lime and on the other hand a raw and activated bentonite from western Algeria. Results showed that high lime dosage was needed to achieve treatment but the presence of high levels of magnesium was beneficial for the defluoridation. Activated bentonite had higher fluoride removal capacity than raw bentonite and resulted in residual fluoride concentrations well within recommended standards. Both defluoridation methods were dependent on inorganic quality of tested waters.
Progress in the Development and Application of Oilfield Produced Water Treatment Processes
Authors: Wang Jun Di , Qu Cheng Tun , Liu Si Yu
Published: September 2014

A large number of oilfield produced water is produced during the developing of oilfield，the optimal way to process these oilfield produced water is to reinject it into strata. This paper firstly analyzes the characteristics of oilfield produced water, then focuses on introducing the research and application process of both traditional and new treatment technologies of produced water , and finally brings forward some expectation about the application and development direction of the oilfield produced water treatment processes.
Research on Foam-Separation Type of Surfactant Wastewater Treatment
Authors: Shen Qiu Hua , Wang Xiao Jie , Ji Yun Zhe
Published: September 2014

Foam-separation wastewater treatment is conducted by the adsorption principle of surfactant. In this paper, we adopted CTAB simulated wastewater for separation study, taking removal rate and enrichment ratio as the evaluation index. It’s been studied about the impact of operating-parameter gas velocity, liquid volume and time on the effect of separation, and further the appropriate process parameter.
Synthesis Technology of Amine Surfactant Modified Brewer's Grains for the Adsorption of Cr(VI)
Authors: Jiang Xin Long , Jiang Yi Hua , Cai Cheng Gang , Chen Hong
Published: September 2014

The modified adsorbent was modified by amine reaction with brewer's grains that using epichlorohydrin as etherfying agent,N,N-Dimethyl formamide as dissolvent, triethylenete tramine as cross-linking agent.The simulation of Cr (VI) wastewater as treatment object, through the optimization of synthesis conditions of Cr (VI), the optimal synthesis process was obtained.The results showed, 4 g brewer's grains, add 15 ml epichlorohydrin and 15 ml N,N-Dimethyl formamide stirring 1h at 85 °C. Then added dropwise to 4mL triethylenete tramine, mixing reaction 1h at 85 °C. The maximal absorption rate got 99.81%.The modified brewer's grains of amine surfactant modified is a promising treatment of chromium wastewater biological materials.
Discussion on MBR Treatment Process of Domestic Landfill Leachate Design Issues in Northeast Area
Authors: Wang Xue Song , Fei Ying Chao , Zhao Yu
Published: September 2014

MBR technology has been widely used in northeast China's leachate treatment projection for its obvious technical advantages. However, the complex nature of the Northeast leachate as well as relatively more calculations design of MBR process, became the key to the success of the project. This article in view of the present our country MBR treatment process of domestic refuse landfill leachate treatment of some design problems and puts forward some personal views and suggestions,, for example the MBR process calculation method of reference.
Investigation on Material Selection in Missan Oilfields Similar Environment
Authors: Cheng Shuang , Lin Feng , Yang Pei Long , Zhu Pei Ke , Deng Jin Gen , Sun Xue Qiong
Published: September 2014

This paper analyzed the corrosion environment of Missan oilfields and investigated the oilfield country tubular goods used in other similar oilfields. Summarized the effect of partial pressure ratio of H2S/CO2 and Cl-to the corrosion behavior of OCTG. This paper concluded the service condition, test results and anti-corrosion mechanism of carbon steel, low-chrome steel, modified martensitic stainless steel and nickel alloy. Finally arrived at conclusion that the nickel alloy can meet the requirement of Missan oilfields, some literature reported that the modified martensitic stainless steel can apply in H2S/CO2 environment. In the condition that be easy to replace the tubular, carbon steel and low-chrome steel tubular can meet the requirement with corrosion inhibitor.
Application of Fuzzy Pattern Recognition Model on the Regional Water Resources Carrying Capacity Evaluation
Authors: Wei Yuan Dong , Yu Xue Feng , Li Ming
Published: September 2014

This article analyses the connotations of water resources carrying capacity and its evaluation method, Selecting 9 main factors as the evaluation indexes, combined with fuzzy pattern recognition model and apply this model to comprehensive evaluation of water resources in Erdos. The results show that current exploitation and utilization of water resources in this region has reached a considerable size, under the current economic and technical conditions, the bearing capacity of water resources in this region has been relatively small, water resources supply-demand contradiction is so urgent.
Wellbore Stability of Salt and Anhydrite Formation of Fauqi Oilfield in Iraq
Authors: Mu Yun Long , Wang Lei , Liu Ke Ming , Deng Jin Gen , Yu Bao Hua , Cao Yuan
Published: September 2014

Salt and anhydrite formation of Fauqi oilfield in Iraq contains salt, anhydrite and shale. Complex situations have occurred in drilling process, such as overflow and sticking. The cores of the three lithology rock are fetched and their strength and creep mechanical properties are tested. Anhydrite is with higher strength and lower creep properties, and shale and salt is with lower strength and higher creep properties. The collapse pressure and fracture pressure of the three lithology rock are calculated. The safe density window of anhydrite is the most widest and there is no risk of wellbore instability, and the safe density window of shale is the narrowest and wellbore instability easily occur. The low limit of mud density to prevent shale and salt creep are calculated by power law model. The safe drilling density window is determined and successfully applied in drilling field.
Construction of Eco-Civilization of Water Based on Human-Water Harmony
Authors: Jiang Mao Dong , Wang Hai Long , Wang Jiang
Published: September 2014

Eco-civilization of water and human-water harmony supplement each other and advance each other. Constructing eco-civilization of water is an important way of promoting the development of modern water conservancy. It is necessary to establish national notion of saving water, handle the relationship between water conservancy project construction and water ecology, and improve conservation system of water ecology to strengthen the construction of eco-civilization of water and realize the harmonious development of human and water.
Street Corner Space Landscape Design
Authors: Ouyang Hong Yu , Chen Bi Feng
Published: September 2014

Through to the street corner space of the urban residents' daily life experience of social investigation, put forward the guiding principles for the location of corner space landscape design can identification, space versatility, use safety, environment suitability principle. Conclusion from the location awareness, zoning, personality construction and processing in the detail design method. For waterscape design, plant configuration, pavement and recreation facilities such as the design of the landscape elements to improve the edge space landscape quality present situation, the cultural connotation and aesthetic value, improve environment conducive to the development of spiritual civilization.
Evaluation of Rural Water Security in Shandong Province of China
Authors: Leng Man Man , Jin Li , Li Qing Guo
Published: September 2014

In order to investigate the water security situation in typical rural areas of Shandong province, the index system of water security assessment were estasblished based on full understanding of water security as well as combination between actual situation of Shandong province and the definition rural water security. With six county-level city of Shandong province as examples for water security evaluation, each index weigh was calculated by entropy method according to the fuzzy comprehensive evaluation method .It was showed that the water security rank from bad to good was shouguang city, ju county, qingyun county, wendeng city, feicheng city and linqu county. The evaluation results was in keeping with the actual condition of water resources, which shows that this system is applicable on rural water security evaluation.
The Strategic Research on Green Space System Planning of Small Towns in Cold Region
Authors: Guo Li Juan , Li Shu Ting , Sun Hong Qing
Published: September 2014

Small towns in cold region own special ecological environment. Aiming at their particular climate characteristics, the green space system planning of small towns in cold region was studied. Through analyzing the problems of the green space system planning of small towns in cold region, the study proposes five levels planning strategy, including developing the regional integrated green space system planning of small towns in cold region, building the stable green network structure of town, improving quantity and quality of green space of small towns in cold region, strengthening winter landscape construction of small towns in cold region, and inheriting ice and snow culture of small towns in cold region, in order to promote the sustainable development of green space system planning of small towns in cold region.
The Study about Geomancy Art in Su Prince Tomb of Ming Dynasty
Authors: Ye Ming Hui , Liu Ze Hua , Meng Xiang Wu
Published: September 2014

The location of Su prince tomb of Ming dynasty followed the geomantic site selection principle in ancient times. The tombs which were surrounded with mountains and the water formed the environment of hiding the wind and gathering the water. Through to the geomantic pattern's research and the discussion of Su prince tomb geomantic site selection, this article proposed that the thought of coordinated with nature and the idea of ecological and sustainable development.
Landscape Pattern Analysis of Land Use in Low Mount Hilly Land of Harbin Eastern Suburb
Authors: Song Hai Hong , Tan Yun Feng
Published: September 2014

This article analyzes the general characteristics and its causes of the landscape pattern of land use, taking the Tuanjie town of DaoWai district in Harbin as an example. Using GIS and Fragstats software to calculate a series of landscape index, the data show that Tuanjie town is given priority to with agriculture landscape, and the landscape patch connectivity is stronger; the overall landscape patch shape is complex, showing the human activities interfere significantly; and each patch type concentration and fragmentation is quite different. Therefore, based on the use of their own advantages, put forward reasonable suggestions to the landscape optimization of Tuanjie town land use.
Numerical Simulation of Wind Environment in a Hill and Buildings Configuration
Authors: Shen Cheng Jun , Gao Cui Lan , Song Ya Min
Published: September 2014

Numerical simulation of air flow over urban areas is an effective way to analyze and predict the wind environment. This paper presents two dimensional computer model results concerning the effects of buildings and/or a hill on the wind flow. The RANS equations and RNG κ-ε turbulence model used in the simulation are discretized by the finite volume method. The computational solution is based on a pressure correction algorithm of the SIMPLE-type. The inflow boundary conditions are given by wind tunnel experiment. In the presence of only a street canyon formed by two buildings, the ambient wind is accelerated and slightly curved at the roof level. When there exist a hill and a street canyon, the velocity in the canyon is affected by the upwind hill. Another simulation model, which has a hill and two street canyons, is used for comparison. There is a little difference in velocity between a single street canyon and two canyons in the presence of an upwind hill.
The Characteristic Analysis and Protection Thinking on the Xinmin Street Historical and Cultural Blocks in Changchun
Authors: Bai Li Min , Hou Jian Min
Published: September 2014

The paper mainly introduces the general situation, planning features and architectural features of the Xinmin street historical and cultural blocks. Through the analysis of street pattern, spatial texture, environment and architectural characteristics of blocks, the paper demonstrates the typical features of city streets in the modern puppet period and puts forward some protection thinking of the historical blocks.
Multi-Objective Optimal Allocation for Regional Water and Land Resources
Authors: Fang Guo Hua , Yin Qian Qi , Huang Xian Feng , Xu Shuo
Published: September 2014

With rapid development of society and economy, the issue of water shortage has presently been more and more serious in China. Optimal water and land resources allocation, involving many aspects such as society, economy, ecology etc., is a rational approach to solve this problem. In this study, a substantially improved model, i.e., multi-objective optimal allocation, is established for coordinating the usage of water and land resources. The model was developed on the basis of Immune Genetic Algorithms (IGA), and it mainly includes three objectives and seven constraints. The results of case study show that there is no water shortage in the predicting year of 2020 in Dongtai City, Jiangsu Province by using the optimal allocation of water and land resources. The new optimal allocation proposed in this study has a positive influence to promote the economic and social harmonious development and the natural environment protection for coastal areas of China.
Study on the Enlightenment from EU Smart City Evaluation System
Authors: Ni Dong Mei , Liu Rui Han
Published: September 2014

In this paper, EU smart city evaluation system is introduced, and every index and its characteristic is explained particularly. Smart city construction of foundation is created by innovation. They emphasized green, low carbon economy and lifestyle and encouraging public participation, advocate social forces to participating in urban development. From the ranking result, it is known that the EU smart city construction has the following characteristics: The level of EU smart city development is not balanced. Smart move, smart people and the smart life is better overall development. The development of the city itself is not balanced.
Development of the Capital Cetinje Surrounded by of Centuries-Old Coastal Towns of the Southern Adriatic Sea
Authors: Radovic Goran , Murgul Vera , Vatin Nikolay
Published: September 2014

The old capital of Montenegro Cetinje, developed in the immediate surroundings of the centuries-long cities, grudgingly applying their proven experiences for their political and economic position, especially because of their specific roles during the development. Considering these facts, that the development of Cetinje took place in other flows in relation to the old towns in the region, developing in entirely other principles, which made it specific in those days. The article outlines the prerequisites for the development of the capital of Montenegro at the crossroads of east and west, and at that time of two worlds, Islam and Christianity, what determined its economic and social development of the mediation between the coast and hinterland.
Present Situation and Countermeasures of China's Wisdom Scenic Area
Authors: Yu Bing
Published: September 2014

Wisdom scene area" is a new concept developed in recent years, in the "wisdom of the earth" and its practice in Chinese "smart city", "wisdom travels" background students. Discussed the connotation of wisdom scenic area, summarizes the development status of China's wisdom scenic area, expounds the main features of the wisdom, scenic construction content, pointed out the existence of our wisdom scenic area development problem, put forward the development countermeasures.