bluuebunny/crossref_metadata_2025 huggingface dataset:
A Simple Method for Visualizing the Phase Space of Chaotic Dynamics System
Authors: Zhou Lin Na , Zhu Shi Jian , Lou Jing Jun
Published: August 2011

The chaotic dynamics system is so complex that the traditional methods of nonlinear numerical approximation can’t intuitively reflect the characteristics of chaotic behaviors. We propose a simple method for visualizing the phase space of chaotic dynamics system. With the help of the visualization technology based on VTK(Visualization Toolkit), we can quickly render the phase space of the system with different phase values and this can help us explore the inner rule of chaotic dynamics system.
A New Calculation Approach on Fundamental Nutural Period of Vieration for Semirigid Steel Structure
Authors: Liu Jian , Huang Xiang Yun , Zhou Guang En , Zhang Hong Yan , Xing Zeng Lin
Published: August 2011

The new calculation method of fundamental natural period of vibration for multistory and high-rise steel structure, in which semirigidity of joints between beam and column, shear deformation for the cross section and so on is considered at the same time, is presented in the paper. The lateral drift stiffness of column in steel structure and inter-story stiffness of steel structure, which joints semirigidity, shear deformation and effects for steel structure is simultaneously considered, is derived in the paper. General expression for stability function considered shear deformation of the cross section for beam-column members is put forward.The approach is relatively simple and more practical. It can be referred to steel structural design.
Regional Protection during the Rural Reconstruction: Taking Gulong Village as an Example
Authors: Shi Qian Fei , Yu Xiu Xiu
Published: August 2011

Although some achievements have made in the rural reconstruction, some actual problems and misunderstandings are still existed. The villages are following the same patterns and they are monotonous without characteristics. They have no inheritance or history. Based on the analysis the concepts of regional culture and regional and their relationship, some methods can be used in regional protection during the rural reconstruction in order to solve these problems. And then it analyses the planning and construction of the Gulong village of Yangcheng city in Shanxi province which attempts to give some suggestions to the flowing rural reconstruction.
Analysis of Bridge Deflection Based on Time Series
Authors: Sun Lei , Hao Xian Wu
Published: August 2011

The bridge health monitoring system can collect large amounts of data, but it lacks the trend analysis of monitoring data. This article introduced the method of Time series analysis into the analysis of bridge monitoring data, and adopted ARIMA model in time series analysis of monitoring data, used the least square method for parameter estimation, established the prediction model for bridge deflection, and conducted the goodness of fit test. Take the actual bridge monitoring data as an example, it was demonstrated that the method is feasible in the prediction of bridge condition trend.
Analysis of Braced Excavation with Pit-in-Pit Based on Orthogonal Experiment
Authors: Qian Tian Ping , Gong Xiao Nan , Li Ying
Published: August 2011

In order to study the supporting structure under different distances between inner pit-in-pit and foundation pit, width and depth of pit-in-pit and general excavation depth of external foundation pit, PLAXIS is adopted to simulate the whole process of pit-in-pit excavation in a foundation pit of Shanghai. The factors which influence wall deflection are analyzed using orthogonal experimental design software. The results show that the factors which influence deformation of pit-in-pit and supporting structure of foundation pit are sorted with range value or sensitivity descending: depth of pit-in-pit, location of pit-in-pit, general excavation depth of external foundation pit, and width of pit-in-pit. Depth and location of pit-in-pit are the most two significant factors, and they have the strongest interactions.
The Low-Carbon Evaluation of Resident Buildings Based on the Value Engineering
Authors: Chen Xiao Long , Zhang Ning , Yu Ting Ting
Published: August 2011

Facing the increasingly serious energy and climate crisis, the concept of low-carbon indicates development direction for building conservation. However, building functions are easily neglected in the process of low carbon residential buildings construction. Therefore, based on the concept of value engineering, this paper presents a comprehensive evaluation method to evaluate carbon emissions of residential building. It highlights residential building functions as well. Function coefficient can be confirmed by establishing residential buildings function evaluation index system. Moreover,the unit carbon emission isadopted as cost coefficient. The low-carbon nature of residential building will be evaluated by the ratio of function coefficient and cost coefficient.The aim of this research is to advance the awareness of residential building carbon emissions, exploring the path of realizing maximum satisfaction of building functions with minimum carbon emissions, which can provide new ideas of residential building carbon emissions evaluation.
Outliers Detection of Dam Displacement Monitoring Data Based on Wavelet Transform
Authors: Liu Jian , Lian Ji Jian
Published: August 2011

Dam safety monitoring data can be viewed as a digital signal sequence which consists of different frequency components. Identifying outliers to ensure the reliability of observational data becomes a foundation work of dam monitoring data analysis. Outliers of time signal series can be detected by wavelet transform. Lipschitz index can be used to measure the local singularity of a function, and the original abnormal signal can be found in the position of wavelet transform modulus maxima. Take horizontal displacement values observed by Lijiaxia concrete dam as example, an assumed error are added to the time series signal deliberately. A 4-level decomposition of the observation data was done by using wavelet db1, the results show that the modulus maxima occur at the given time. Therefore, outliers can be detected and located accurately by wavelet transform, which is important to analyze the safety monitoring data of dam.
The Impact of Infrastructure Investment to Coordinated Urban and Rural Development in China
Authors: Jiang Shi Jie , Shen Li Yin , Lu Wei Sheng , Zhou Li
Published: August 2011

The paper describes the impact of infrastructure investment to coordinated urban and rural development in China from three aspects. First, infrastructure investment can alleviate the question of ‘three rural issues’ of facilitating agriculture, boosting rural economy, and raising farmers’ income. Second, infrastructure investment can enhance production and living conditions of farmers, improve social undertakings and help build well-off society. Third, infrastructure investment can improve ecological environment in rural areas.
Excess Pore Pressure Dissipation Characteristics of Different Soil by CPTU on Pearl River Delta
Authors: Tang Yan Chun , Meng Gao Tou
Published: August 2011

Through a lot of CPTU excess pore pressure dissipation tests on Pearl River Delta in China, excess pore pressure dissipation characteristics of different soil layer on Guangzhou-Zhuhai section of Beijing-Zhuhai Expressway and Taishan section of Guangdong West Coast Expressway has been analyzed. The dissipation time of 50% dissipation degree t50 of excess pore pressure dissipation curve by CPTU can be used as the auxiliary method to determine the type of soil, and through CPTU excess pore pressure dissipation tests, the t50 value of sand soil, silt, silty clay, clay soil and silt soil has been obtained; through comparison with the t50 value of different soil, the difference of sand soil, silt and clay soil can be roughly distinguished; the obvious boundary value between the t50 value of clay soil, silty clay and silt soil is not existed, so the t50 value can not be direct to determine the type of these clay type of soil. The achieved results can provide a research foundation for CPTU application research on Pearl River Delta in China.
Simulation Analysis of Complex Space Steel Truss Construction
Authors: Sun Lei , Feng Wei Ming
Published: August 2011

This paper used the finite element method to simulate the engineering structure for large complex steel truss structure installation plan. The simulation results provide the basis for the scheme selection, and it is compared with the measured results and theoretical calculation to prove that the simulation technology is necessary and correct.
A Study of the Anchor Effect Based on Structural Parameters of Flexible Pressurized Anchor and Pressure from Surrounding Rock
Authors: Cui Tian Lin , Pi Jing Kun , Liu Yong Hui , He Zhen Hua
Published: August 2011

In order to optimize the design of flexible pressurized anchor, this paper gives a further analysis on structural features of the new type of flexible pressurized anchor and carries out a contact analysis on anchor system by using the finite element method. It calculates as well as researches the contact stress relation of interactional anchor rod and surrounding rock under the circumstance of anchoring, obtaining the law of all major design parameters of anchor rod structure and pressure from surrounding rock influencing the anchoring performance and arriving at the conclusion that the anchor rod is adapted to various conditions of surrounding rock. They not only serve as important references for optimized design and application of anchor rod, but also provide a basis for the experiment of new type of anchor rod.
Dump Slope Stability Analysis and Landslide Forecast Research
Authors: Jiang Hai Bo , Hu Tao , Li Shun Cai , Li Jiang
Published: August 2011

The dump is the important part in the open colliery. Slope should bring the huge loss without effective forecast during the work. Many methods have been used in the slope stability analysis to escape the slope. In this paper, the methods used in the analysis have been list and forecast reasearch should be discuss.
Life Cycle Incremental Cost-Benefit Analysis of Green Building
Authors: Chen Min , Chen Jian Guo , Cheng Xin Xin
Published: August 2011

The promotion of green building has significant contribution to the implementation of sustainable development principles. And with the enhancing awareness of environment protection, green building becomes the trend of the construction industry. While its promotion is still very difficult, the major barrier affecting the application of green strategies is the high initial cost. So the incremental costs and benefits in the life cycle of green building are identified and described by math equations in this paper. Furthermore, the evaluation indexes of incremental cost-benefit analysis, considering the social benefits and environmental benefits, are given to evaluate the economy of green project, which is of certain practical significance.
The Sustainable Development of Ecological High-Rise Building Design
Authors: Mao Bai Tao
Published: August 2011

A city high-rise building of the environmental balance, and its prominent position in the image and the place has a special symbol. However, high-rise buildings developed to reduce the symbolic value that it has attributed to the relevant system of architectural forms. As more and more dense urban high-rise buildings stand, we should be carefully evaluated: its ecological evvironment, will be the effect? Because of its height and volume, a high-rise building than in the top or bottom is likely in terms of physical environment on the social environment and the impact is much greater. Disturb the existing high-rise buildings in varying degrees between the various functions of the city, increasing the city high-rise buildings in the moment, how to properly control the rapid of high-rise buildings in order to maintain a sustainable ecosystem, is a question worth considering.
Individual Cost Estimation in Construction Bidding Process Based on Cost Index
Authors: Chen Min , Chen Jian Guo , Cheng Xin Xin
Published: August 2011

Tender offer is very important to the construction enterprises in the bidding process. So how to identify the individual cost objectively and efficiently is studied in the essay. The relations of social average cost and individual cost, the factors affecting the individual cost and the difficulty in ascertaining the cost in the bidding process are analyzed. Grey RBF neural network model is built combining with the cost index to obtain the social average cost. The Analytic Hierarchy Process model is made to analyze the rate of each factor affecting the individual cost through expert system. On the basis of the social average cost combining with the affecting rate of each factor, the individual cost could be judged. This method is of practical significance and proved effective through a living example. The conclusion could provide reference for construction enterprise to select the bidding strategy.
The Numerical Simulation of Heat and Mass Transfer in Porous Medium
Authors: Wang Ling , Zhang Jian
Published: August 2011

Simulate the heat and mass transfer in 2D cases using fluent software and analyse the results of simulation. Summarize the reasons of neglecting the nature convection under the small Ra number, Furthermore state good thermal retardation properties of porous medium in building.
Catastrophe Theory Analysis on Asymmetric Mining Pillar Dynamic Failure
Authors: Wang Zhi Qiang , Zhang Li Xin , Guo Hai Bin
Published: August 2011

Based on the simplified analytic model of asymmetric mining rock beam-pillar system, the catastrophe model of dynamic failure of the rock beam-pillar system in asymmetric mining has been established by way of the differential form of total potential function deduced by law of conservation of energy. Analysis and illustration show it is consistent in discriminating the system stability by energy importing rate J—presenting the descending or increasing tendency. Outside or suroundings imports energy into rock beam-pillar system when J> 0; and the system exports energy to outside or surroundings when J<0.J=0 is the critical condition of system destabilization,which implicates Cook stiffness criterion and is a dynamic generalization of Cook criterion in the form of energy.
Comparison Experimental Study on Subgrade Compaction Quality Test Methods
Authors: Nie Zhi Hong
Published: August 2011

The principles of the continuous test methods for compaction degree is introduced based on subgrade engineering cases. The compaction parameter CMV associated with subgrade compaction is obtained through spectrum analysis on the response of a vibratory drum during compaction operations. Comparative analysis is conducted on CMV and the in situ test index Evd, which verifies that the continuous test index CMV has a high reliability and a good correlation with Evd and can objectively and comprehensively reflect the subgrade compaction quality and provides necessary basis for the application of the continuous quality test methods for subgrade.
Gravel Content Effect on the Shear Strength of Clay-Gravel Mixtures
Authors: Wang Chen , Zhan Chuan Ni
Published: August 2011

Gravel content is an important factor affecting the mechanical properties of clay-gravel mixtures. To study the effects of gravel content on the shear strength of clay-gravel mixtures, constant-strain-rate drained triaxial compression tests were conducted for various mixtures. The gravel contents were 30%, 40%, 50% and 70%. The confining pressures were varied from 50kPa to 300kPa. Test results indicate that the deviator stress at failure under the same confining pressure increases with the increase in gravel content. As the gravel content in the mixtures is between 30% and 50%, the shear strength is jointly attributed by clay and gravel. An increase in gravel content results in slight increases in both the cohesion intercept and internal friction angle. At gravel content of up to 70%, the shear strength of the mixture is controlled by that of the gravel, and the cohesion intercept and the internal friction angle increase sharply.
Characteristics and Mechanisms of Gaseous Organic Compound Generation during Coking
Authors: Zheng Qing Rong , Zeng Fan Gui , Zhang Shi Tong
Published: August 2011

Five representative coal samples used for coking were carbonized in a thermogravimetric analyzer to simulate an industrial coking process. The gaseous organic compounds generated were analyzed with a coupled mass spectrometer. During coal carbonization, thermal detachment of aliphatic side groups causes disintegration of the coal structure. Methyl groups detach at higher temperatures than methylene and methine groups, and the temperatures corresponding to peak generation of these groups increase with the metamorphic grade of the coal. Methane is generated by three mechanisms: below 370 °C, methane adsorbed in coal is thermally released; at about 510 °C, methyl groups are thermally detached from the coal to form CH3+ ions, which further combine with hydrogen to form methane; finally, at about 720 °C, methane is produced as a result of the condensation of aromatic rings to form larger fused rings. Benzene is also generated by three mechanisms: at 400–500 °C, aromatic structures in coal lose side groups (e.g. methylene or methine) to form benzene ions, which subsequently react with hydrogen to form benzene; at 500–700 °C, benzyl structures in coal lose methyl groups to form benzene ions, which then combine with hydrogen to form benzene; finally, at about 800 °C, condensation of fragments in coal also forms benzene.
A Study on Internal Force Monitoring and Back Analysis of Supporting and Protecting Structure of Rock Deep Foundation
Authors: Yan Wen Rong , Liu Yong Hui , Pi Jing Kun , He Zhen Hua
Published: August 2011

With the rapid development of bridge engineering, the application of supporting and protecting structure that embeds in deep foundation engineering is gradually applied in the design and construction of large-scale suspension bridge. Due to the few amount of stress gauge steel that are pre-installed in the diaphragm wall reinforcement cage in deep foundation engineering and discrete data, it is difficult for the existing frequently-used method to reflect stresses of each part of the wall truly. And for major engineerings, like anchorage foundation, it is necessary to know the stress state of diaphragm wall on time in order to provide basis for decision making for the excavation site. By adopting finite element method, demonstrating the characteristics of its force reversely by using wall deformation and based on the wall deformation data measured in the field, this paper provides strong guarantee for ensuring the safety and reliability of construction.
Study on Identification of Structural Boundary Using Frequency Parameterization
Authors: Gao Hai Yang , Guo Xing Lin , Wu Ming Yong
Published: August 2011

We present an extended model for identifying structural boundary condition parameters, considering the coupling terms (stiffness and damping) between translation and rotation which are commonly ignored in general cases. Two objective functions are established based on impulse response functions (IRFs). Frequency parameterization, which considers the minimum distance to be minimized, is employed. The inverse problem of boundary identification is then solved using Newton-Raphson method. The results of numerical simulation and experimental study assessed the performance of the proposed method.
Design and Implementation of Intelligent Risk Management System for City Gas Pipeline Network Based on GIS
Authors: Liu Jun`E , Ma Xin Tao , Liu Yong Sheng
Published: August 2011

By using GIS method, this paper designs and develops an intellectualization risk management system of city gas pipeline network. This system embeds the MapX components provided by the MapInfo into Visual development languages -- Visual Basic 6.0 to finish the secondary development based on the MapInfo 7.0 Platform and SQL Server 2000 database management system. The design idea, overall structure and function, and the implementation of the function of intellectualization risk management system of city gas pipeline network are mainly introduced in this paper. This system realizes efficient and seamless systems integration, dynamically displays risk grade and accidents range of influence of each pipeline of gas pipeline network and automatically generates emergency response measures and the path. It represents powerful support for the intellectualization risk management of city gas pipeline network and administration department’s assistance decision and emergency response.
Applied Research of Cool Storage and Energy Conservation Technology on Cold Storage
Authors: Zhou Dong Yi , Shi Chu Ping , Yuan Wen Hua
Published: August 2011

The feasibility of the application of cool storage technology in cold storage was discussed and the ice cool storage used in high temperature cold storage, condenser water, cooling room, frozen food store and freezing room was analyzed. Carried on the efficient analysis through a cold storage of Hunan Shaoyang as an example, the result shows that the equipment cost of ice cool storage equipment is 831310.2 Yuan higher than the traditional cold storage and annual operating costs than traditional ice storage refrigeration technology can save 375694.5 Yuan. So it is feasible for the application of cool storage technology in cold storage. But initial investment will be increased inevitably and instead the additional capital can be recovered in about three years through the decrease of electricity consumption.
A Quantitative Analysis of Regional Differences in Urban-Rural Integration - A Case Study of the Shandong Peninsula Blue Economic Zone
Authors: Lv Jing Qing , Liu Pei Pei , Wei Yan
Published: August 2011

Applying composite index leading to an evaluation index system of urban-rural integration, using entropy method for secondary weighting, a model is constructed of quantitative analysis of the regional urban-rural integration. This paper has made a quantitative analysis of the development levels of regional urban-rural integration in the case of the Shandong Peninsula Blue Economic Zone. The research results show that in the problem of multi-target integrated evaluation, the application of composite index, constructing evaluation index system, enables the evaluation process to cover more assessment information without any increase in calculation steps. Application of the model presented in this paper makes feasible a quantitative analysis of the regional urban-rural development.
Facility Closeness Relationship Determination in the Construction Site
Authors: Ning Xin
Published: August 2011

Construction site layout planning (CSLP) is one of the critical activities in construction planning conducted by the managers on the construction sites. CSLP is significantly influenced by the interaction flows and distance between the facilities. The paper aims to apply fuzzy rule-based system developed in the manufacture industry to determine the facility closeness relationship in the construction site. Facility closeness relationship with consideration of quantitative and qualitative factors can be successfully determined by the procedure based on fuzzy rule-based system.
Design of Experiment Equipment for Treating Low Temperature Domestic Sewage Using Biological Contact Oxidation Process
Authors: Li Ying , Zhou Jing
Published: August 2011

According to the biodegradability of wastewater and better adaptability of biological treatment processes, and advantages of using biological contact oxidation process to treat sewage, biological contact oxidation method was used to study the removal conditions of domestic sewage treatment in high latitude area, and a set of experimental device of biological contact oxidation method applied in treating domestic sewage in low temperature was designed, to solve the serious pollution of domestic wastewater and its higher treatment cost in high latitude area.
Treatment Equipment of High Concentrations Organic Industrial Wastewater
Authors: Li Ying , Zhou Jing
Published: August 2011

Characteristics of the high concentrations organic industrial wastewater and its pretreatment methods was developed in detail, on this basis, introduce S wastewater treatment equipment, which has a effective pretreatment on high concentrations organic industrial wastewater, such as equipment characteristics, working principle, equipment specifications, equipment installation and commissioning, removing operation trouble and application areas as wastewater treatment. The device is the first choice of pre-treating high concentrations organic industrial wastewater, in foreign countries, particularly Austria, have a wider range of applications.
Analysis of Advantages and Disadvantages of Sewage Treatment Technology and its Application in Rural Areas of Beijing
Authors: Li Ying , Zhou Jing
Published: August 2011

At the current stage, sewage treatment technologies in rural areas of Beijing are applied frequently, they have their own advantages and disadvantages in the specific implementation process. Combining with the recent investigation of operation management of sewage treatment facilities in rural areas of Beijing, analyze advantages and disadvantages of rural sewage treatment technology and its application range in Beijing, aiming at provide a reference on the application of sewage treatment technology in rural areas of Beijing.
Study on Environmental Construction of New Socialist Countryside in Beijing
Authors: Li Ying , Guo Ting Ting , Zhou Jing
Published: August 2011

According to the need of building strategies to develop new countryside, the paper made a study on environmental construction of new socialist countryside in Beijing. The paper made a survey on many aspects such as roads, building, forestation and communication and analyzed the problem, solutions and measures. It has some reference value for environmental construction of new socialist countryside in Beijing.
Research on the Construction of Public Facilities in Beijing Rural Region
Authors: Li Ying , Guo Ting Ting , Zhou Jing
Published: August 2011

Begin with the current situation of the construction of rural public facilities, the paper analyzed and researched the current situation of convenient entertainments, education, the post offices, the banks, bathhouse and lighting facilities of rural roads, and at last presented several advices or suggestions to solve the above issues for the construction of rural public facilities in Beijing.
Analysis of the BER of Multi-User IR-UWB System Based on the SGA
Authors: Xu Hui Bin , Zhou Li Jie
Published: August 2011

The performance and MUI features of UWB is deduced in the paper. For THMA –UWB system, SGA can lead to a more optimistic ber. The performance of the orthogoal PPM and reverse polarity PAM are alalyzed. The simulation show that the reverse polarity has better performance of resistance to multi-user interference than orthogonal.
The Forceanalysis of the Vertical Axis Wind Turbine Arms
Authors: Bian Zhong Guo , Fan Cheng Xian , Liu Shu Qin
Published: August 2011

The strain on the arms of the H-VAWT is complex. The article makes analysis on the moment of inertia and maximum stress of the H-VAWT arms, and calculation is made on an equilateral triangle and a rhombus which has the same perimeter with the former. The article provides a method for analyzing the designation of H-VAWT.
Comprehensive Analysis about Feasibility of ‘Green Construction’ in UK
Authors: Zhang Le Jin
Published: August 2011

This article aims to introduce and apply the concept green construction, demonstrating its feasibility and finding ways for achieving it. ‘Green construction’ indicates the building that is both zero-energy qualified and environmentally friendly. This article mainly includes two major parts, in the theoretical part, existing social and technical methods for this term are introduced and critically analysed, the feasibility of green construction is discussed in theory. Then the theory is put in practice in the second part of the article, the possibility of their applications are discussed in a real UK shipping container house case, whose thermal performance is simulated by software IES Virtual Environment, through the result comparison of models with different variables in glazing insulation, wall insulation, window size, window direction, the energy-saving effects of different variables are ranked, which indicates some practical ways to better achieve the feasibility of green construction. ‘Green construction’ in UK is feasible; however its realization is still with some conditions, which need a series of work done by both architects, scientists, government and householders.
The Green Factory Building Evaluation System in Taiwan: an Introduction to EEWH-GF
Authors: Chen Jian Nan , Lin Hsien Te , Ho Ming Chin
Published: August 2011

This paper introduces the Green Factory Building Evaluation System (called EEWH-GF) in Taiwan. EEWH-GF is aimed at industrial building, which has developed the highest density in Taiwan, in the world. The Taiwanese industry formerly achieved half the results while expending twice the effort in economic development, irrespective of the ecological environment. Several efforts are required to recover the increasing damage to the environment. The EEWH-GF contains two necessary indicators, Executives promise and Commissioning (CX), and four aspects: ecology, energy, waste, and health. By using EEWH-GF evaluation system, designers can modify building proposals in the design phase to meet project requirements. Not only is the system excellent for sustainable environment, but also for upgrading the industrial advantage of Taiwan in the world.
Numerical Modeling for the Stress Displacement Distribution of Tunnel after Excavation
Authors: Li Yong Suo , Zhang Ke Neng
Published: August 2011

The tunnel excavation is often existed in civil engineering, in which the minimum roof thickness of tunnel is an important index in tunnel construction and design. Some work have been done on this field, by analytical analysis method and numerical simulation method based on linear criterion. In order to add some conclusions to the roof thickness prediction by nonlinear criterions, in the present paper, the calculation model for excavation of tunnel is built by numerical method, the nonlinear criterion is applied to describe the failure situation of the surrounding rock mass; then, according to the reduction method for thickness of roof, the thickness of the roof after excavation in tunnel is analyzed with the nonlinear criterion, to give some guidance for the real practice.
The Preparation and Properties of the Low Melting Point Microencapsulated Paraffin Insulation Mortar
Authors: Zhang Jian , Yan Hua , Chen Shu Lian , Wang Xue Mei , Gu Zi Di
Published: August 2011

Phase-change thermal storage insulation mortar was prepared by using low melting point paraffin as phase change material (PCM), added with appropriate cementing materials, additives and water in this paper. The construction performance, mechanics and thermal properties of the insulation mortar were tested. The results showed that the compatibility between the microencapsulated paraffin (MCP) and inorganic cementing materials was improved by using the silane coupling agent and binder to modify the surface of the MCP, that the cracking of the mortar was solved by introducing the fibers to improve the toughness in the low melting MCP insulation mortar, that the primary physical properties of phase change mortar accord with the standard of the similar mortar, and that it has a favorable phase-change thermal storage ability and an increasingly wide utilization.
Study on Geological Hazards and Countermeasures in Fushun Mining Area
Authors: Zhou Jian Jun , Chen Lei , Fu Zhan Ling , Xie Ke Ke
Published: August 2011

Surface coal mining and underground coal mining over a hundred years had caused a series of geological hazards in Fushun city. Basing on classification and characterize of geological hazards, with regarding to tectonic history, a control theory of geological structure is proposed to study and prevent the geological hazards in mining cities. According to the location of intersection of main faults F1Aand F1, the geological structure of Fushun mining area is divided into three types, some advises of prevention to geological hazards are suggested for each type in the coalfield.
Urban Color Planning Methods based on Chaos Theory: A Case Study of Zhuhai Qinglv Road
Authors: Chen Jia Wei , Chen Lan Xiang , Kuang Nan , Chen Hui , Huang Pei De , Lv Xin Guang
Published: August 2011

Urban color planning is a very complex issue. It is diffcult to carry out overall planning and color management scientifically relies on traditional survey methods and empirical analysis. The object of Chaos theory is nonlinear complex systems. In this paper, we combined chaos theory and the traditional urban planning approach, proposed the urban color planning methods based on chaos theory. Through the case study of Zhuhai Qinglv Road, we have got the color planning of Zhuhai Qinglv Road.
Site Selection of Underground Space for Disaster Prevention Based on GIS
Authors: Zhao Zi Wei , Wang Xing Bin
Published: August 2011

Underground space for disaster prevention is a key component of urban disaster prevention system. The study applied GIS technology, established an indicator system and a comprehensive assessment model for site selection of urban underground space for disaster prevention. The result of the study, which is on the basis of GIS data collection and model principle, provided quantitative foundation for disaster prevention planning of underground space, and also helped to improve planning management and decision making.
The Effect of Rainfall Infiltration Time to the Unsaturated Soil Slope Stability
Authors: Cai Guang Hua , Lu Hai Jun , He Wei , Guan Long , Xu Wei Qi
Published: August 2011

Rainfall infiltration is currently one of the important factors in studying the soil-slope stability. By using saturated-unsaturated seepage theory, the traditional limit equilibrium method and so on, analyze the water content and the pore-water pressure changes under the rainfall condition, then analyze the influence mechanism of the slope stability. Through the Seep/W and the Slope/W of the GEO-Slope software, do the numerical simulation of the slope stability under the rainfall condition, to seek the distribution of pore-water pressure on the rainfall situation and the influence of the seepage field from various parameters such as rainfall intensity and the soil permeability coefficient, thus to study the slope stability.
Nonlinearity Finite Element Analysis of Settlement of Support
Authors: Qu Heng Xu
Published: August 2011

The rigid frame of some material storage was analyzed by the nonlinearity finite element method. The intensity and stability of the rigid frame acted by out side load and support settlement are calculated. The theory and suggestion are given for designing, reinforcing and maintaining the structure.
Curb Parking Supply Scale with Conditions of Dynamic Traffic
Authors: Ma Chao Qun , Wang Yu Ping , Wei Gang
Published: August 2011

Starting with the two key factors of road breadth and the distance to intersections, the present paper analyzed the constraints of road conditions on setting curb parking lots and, by analyzing the influencing mechanism of curb parking on traffic capacity, constructed the compensation model of traffic capacity for motor vehicles on the parking road sections. Then, the paper went on to set the values of compensation coefficients for road breadth, vehicles in parking in and driving out, non-motor vehicles, and lateral clearance, so as to calculate, with the precondition of guaranteeing certain service standards, the maximal values of curb parking lots on road sections under the constraints of traffic capacity. In addition, it also constructed the driving speed model according to BRP resistance function and, via the analysis of “Friction” effect and “Blocking” effect of curb parking on traffic flows of motor vehicle lanes, measured the influence of curb parking on driving speed in order to exactly determine of maximal parking value under the condition that the minimal driving speed of motor vehicles can be ensured. Finally, for the purpose of finding the balance between dynamic and static traffic and of maximally utilizing the remaining road resources, the maximal number of curb parking lots shall be the minimal value to satisfy the constraints of road conditions, traffic capacity and driving speed.
An Investigation on the Transformations of the Traditional House in the Modern Lifestyle – A Case Study in the Shop-Houses in Tainan City
Authors: Song Hung Chi , Chen Shih Ming
Published: August 2011

This study on the settlement preservation has dual themes of ensuring the continuation of the architectural history and culture, and emphasizing on the needs of contemporary living space. We survey to understand what spaces has been changed when the dwellers lived their traditional shop-house for contemporary life. The intention is to set up a suitable way for settlement preservation on the view of the dwellers. We study these transformations on the traditional shop-houses of the Sheen-None street, Wu-tiao Gang, in Tainan city, Taiwan. The results indicate that preservation projects proposals should make a balance between preservation and alteration in the future.The north shop-houses preserve the first hall to the second hall, and the third hall could be rebuilt, and satisfy the needs of the architectural renewal. The south shop-houses preserve the first hall to the first atrium, and the second hall could be rebuilt, and satisfy the needs of the architectural renewal.
Influence of Air Entraining Agent on Performance of Inorganic Thermal Insulating Mortar
Authors: He Zhi Min , Liu Jun Zhe , Wang Tian Hong
Published: August 2011

This paper presents a laboratory study on the effect of air entraining agent on the performance of thermal insulating mortar with glazed hollow bead. The test results show that with the dosage of air entraining agent increases, the consistency of thermal insulating mortar increases, apparent density, thermal conductivity and drying shrinkage decline, However, the compressive strength greater losses owing to excessive consumption of air entraining agent; air entraining agent within a certain dosage can significantly improve the operating performance of thermal insulation mortar, increase its consistency and reduce its apparent density, thermal conductivity coefficient and drying shrinkage. Due to excessive addition of air entraining agent, the apparent density, thermal conductivity and compressive strength of thermal insulation mortar all increase. For a specific insulation mortar, there will exist the best mixing amount of air entraining agent.
The Effect of Hydration Rate on Concrete Simulation with Cooling Pipe
Authors: Zhu You Ping , Li Tong Chun , Chen Jing
Published: August 2011

Hydration rata and temperature interaction is a complex problem. This paper focuses on variation of concrete hydration and its effect on temperature and stress filed simulation of concrete with cooling pipe. Through three-dimensional specified project with two methods that include consider effect of temperature on hydration rate and no consider effect of temperature on hydration rate, the computational results have been compared and the differences have been analyzed. So we advised that the temperature effect on hydration rate should been considered in temperature stress filed simulation of concrete with cooling pipe. It provide basis to the construction of mass concrete.
Whole Life Cycle Energy-Saving Measures of Large-Scale Public Building
Authors: Fang Rong Jie , Zhang Yun Bo , Shen Deng Min , He Yong , Zhang Li Wen
Published: August 2011

Large-scale public building has high energy consumption and has great potential in saving it. It is necessary to do research on the calculation of energy consumption and raise some methods to save energy of large-scale public building. Basing on the theory of whole life cycle, the energy consumption of large-scale public building was analysed and the whole life cycle energy saving system was set up. What's more, it emphasized the importance of energy saving design at the stage of planning and design. Meanwhile, the paper not only analysed the whole life cycle energy saving contents and calculation formulas of large-scale public building by taking advantage of LCEA model, but also proposed some corresponding measures to save energy.
Teachers Overseas Training and Brain Drain: Based on Game Analysis
Authors: Sun Lei , Ye Zheng Mao , Zhang Shi Ming
Published: August 2011

Universities are facing a dilemma: The training of teachers can improve the competitiveness of universities and meet the needs of teachers in their own development, but may bring the cost of losses caused by job-hopping after training. This work analyzes the factors affecting the overseas training, establishes two-stage and three-stage game models successively, discusses on this issue. The work finds that a better solution is the combination of the two that improving the treatment of teachers and setting the cost barriers for job-hopping at the same time.
Construction Research of Indoor Environment Intelligent Control System Based on MAS
Authors: Zheng Wei , Chen Yi Fei
Published: August 2011

Strictly speaking, the indoor environment intelligent control system can not only detect the parameters of indoor environment, the state of every equipment, but also adjust indoor environment automatically in order to achieve the most comfortable indoor environment under condition of saving energy. Based on thermal comfort index PMV, we have constructed the MAS (Multi-Agent System) for indoor environment control with Zigbee network technology after the deeply research on the decoupling of the environment parameters. In this paper, main researching contents have been discussed like the cooperation strategy in the MAS, proposed a cooperation strategy based on the task distribution, which decreased the communication and enhanced problem solving efficiency.
The Design Methods of Pine Wood Furniture
Authors: Zhang Zong Deng
Published: August 2011

In view of the wood of pine, analysis of the basic principles of pine furniture design as well as the connection patterns, furniture structural design of the basic method.
Effect of PyC Content in C/C Greenbody on Structure and Properties of 3D-C/SiC Composite Fabricated by Gas Silicon Infiltration
Authors: Yang Hui Yong , Liu Rong Jun , Cao Ying Bin , Lin Dong
Published: August 2011

In order to fabricate high perform carbon fiber reinforced silicon carbide matrix composite (C/SiC). SiC interphase of three dimensional(3D) braided carbon fiber performs was prepared by polymer infiltration pyrolysis(PIP) using polycarbosilane(PCS) as precursor. Then, C/SiC composites were fabricated by gas silicon infiltration(GSI) at 1400～1700°C to C/C greenbody, which was prepared by PIP based on precursor of phenolic resin from one to four cycles. The influence of pyrocarbon(PyC) content in C/C greenbody on the composition, microstructure and mechanical properties of C/SiC composites was investigated via X-ray diffraction(XRD), scanning electron microscope (SEM), physical and chemical methods. The results indicate that there were β-SiC, residual Si ,C and closed pores in C/SiC, and the different pyrocarbon(PyC) content influenced C/SiC mechanical properties via the variable content of β-SiC, residual Si, C and closed pores. The C/SiC composites with 2 cycles of PIP-C, which had fitting relative content of β-SiC, residual Si and C, possessed the best mechanical properties. The flexure strength and flexure modulus were 187.3MPa and 66.5GPa. The β-SiC generated from PCS wrapped the carbon fiber bundles, protecting them from reacting with gaseous silicon. The phenomenon of ‘fibers pull-out’ was observed in all four groups of C/SiC composites, which manifested the mechanism of toughness fracture.
Redefining Sustainable Outdoor Learning Environment in Malaysia from the Understanding of Natural School Design and Approaches in Indonesia
Authors: Spalie N , Utaberta N. , Abdullah Nag , Tahir M. , Che Ani Ai.
Published: August 2011

With current development in the pedagogy of teaching and learning approaches in the world, not many studies have been done on outdoor learning in Malaysia. Most of the study was focusing on the development of curriculum and the delivery of knowledge but not many writing and approaches has been done to see outdoor learning as one of the alternative methods of learning in school design. This paper tries to briefly explain the philosophy and approaches of one of the alternative school in Indonesia which is the Natural school or Sekolah Alam which grow tremendously fast in Indonesia. With its unique methods and learning philosophy, this Toto Chan’s style of learning has been considered one of the fastest growing alternative school in Indonesia. With its successful attempt in grooming un-ordinary children this school has proofed to be the most effective implementation of outdoor learning study methods in Indonesia. The discussion itself will consist of four (4) main parts First part will discuss on the current problem and situation in teaching and learning in Malaysia, while the second part will try to explore and review on the definition of outdoor learning with its importance and character in learning environment. The third part will focused on the lesson from Natural School approaches and philosophy of learning while the last part will do some analysis and comparison which result on the suggestion and recommendation for outdoor learning facilities design in Malaysia.
Study of the Deformation Field of Reinforced Soil on the Triaxial Text
Authors: Liu Wen Bai , Chen Zi Yi
Published: August 2011

This study is concerned with the deformation field of the reinforced soil based on the consolidated drained triaxial test, using digital image processing technique in deformation measuring of soil specimen in trialxial test. In order to research the relation between anti-deforming capacity and strain of reinforced soil, intensity characteristic and failure mode, the glass fiber was used as a material of reinforce and 30 groups of triaxial tests were performed under 2 different reinforced positions and 3 types of confining stress. Together with digital image processing technique, we researched the transverse and vertical deformation ratios of reinforced soil in deformation process, drawn the deformation diagram of soil specimen in peaked strain and probed the reinforce mechanization and formation of shear field in reinforced soil. It was shown from the result that the geogrid has a great restraint, which increases with the growth of confining stress, on transverse deformation in medium sand. However, in final, the geogrid is incapable of changing the breakdown trend of soil body.
Control Method of Subsea Pipeline Lateral Buckling
Authors: Liu Yu Xiao
Published: August 2011

Lateral buckling must be considered in exposed HP/HT pipeline design. Snaked-lay method is an effective lateral buckling control method, a new shape of snaked-lay pipeline is presented. Using ANSYS, nonlinear finite element model exposed on even seabed is built. Based on the FEM, sine length and snaked-lay radius are all studied. Sensitivity analyses show that critical buckling is reduced with sine length increasing when lay radius is fixed, but when sine length exceeding a certain value, there is no further reduction in resulting critical buckling force. Maximum moment and critical buckling force are all increased with snaked-lay radius increasing, but for maximum moment when snaked-lay radii exceeding a certain value, the increment is small.
CTOD Specimen’s Fatigue Crack Prefabricated Test for Bridge Steel
Authors: Yu Qi Ming , Sa Hao Liang , Yang Qian Long , Ao Pei , Liao Xiao Jing , Shen Si
Published: August 2011

According to the BS7448 fracture toughness test standard and DNV-OS-C401,this dissertation conducted a CTOD(crack tip opening displacement) fatigue crack precast test with the used steel Q370qE in bridge.Respectively tested different thickness mather materials’condition of fatigue crack,and analysis the test’s results,thus obtained the related conclusions.