bluuebunny/crossref_metadata_2025 huggingface dataset:
Designing a Four-by-Four Keypad Arbitrary-Key-Entry Detector
Authors: Huang Wan Fu
Published: October 2013

This paper presents a field programmable gate array (FPGA) prototype of a four-by-four keypad arbitrary-key-entry detector design for entering any arbitrary set of the 4x4 keypad keys. The number of the valid keys was defined by a multiple-bit mask input. The character code of the prohibited key would not be generated after a key stroke. A valid-key stroke caused the detector circuit to generate a 4-bit hexadecimal character code and a sampling tick for the next-stage device to capture the pressed key information. The detector design and the testing circuitry were implemented on an Atlys Spartan-6 FPGA Development Board. The design itself can be incorporated into a wide variety of key-entry tools on electronic instruments, mechanical devices, medical apparatus, and more, to improve the key-stroke filtering and ease the interface connection.
An Automatic Magnetic Permeability NDT Measurement Device for Cylinder Ferrimagnetic Sample
Authors: Wang San Sheng , Zhang Ming Ji , Hou Huaan , Guo Qiang
Published: October 2013

An automatic none destructive apparatus for measuring the magnetic permeability of cylinder ferrimagnetic sample is introduced. Based on Faraday’s law and demagnetizing factor iteration formula, the device consists solenoid, induction coils, Lock-in amplifier 7265 and a computer for controlling the applied magnetic field and permeability calculation. Five high-resistivity iron alloy rod are chosen as samples and typical material permeability is compared with previous work.
A Novel Vehicle Reversing Speed Control Based on Obstacle Detection
Authors: Xu Hong , Zhang Zu Tao
Published: October 2013

Rencently, due to the increasing vehicles and traffic accidents, the demand of vehcile automation is growing fast, and the traditional vehicle control strategy cant meet the requirement of security. In this paper, we propose a novel vehicle reversing speed control based on obstacle detection. The main components of the system consist of three parts. Firstly, a binocular-cameras system aims to detect the obstacles behind the vehicle rear and measure the distance of them. Then, the framework of particle filter and the sparse representation is indtroduced to track and identify the main obstacles such as human beings, vehicles and any other obstacles. Finally, we send the obstacles signal to our Electronic Control Unit (ECU) to control the electronic throttle and Anti-lock Brake System (ABS) so as to make reversing speed under a safe speed range.The last performance evaluation demonstrates the validity of the proposed vehicle reversing speed control based on obstacle detection.
Application of Collision Detection in Visual Simulation System for Bridge Cranes
Authors: Dong Ming Xiao , Lu Meng Meng , Li Rui Chuan , Tian Jun Ru , Luo Ren Yu , Jiang Ming Shi
Published: October 2013

Collision detection is the key technology in the visual simulation system for bridge cranes. According to analyse the collision between hook and virtual objects in visual simulation system for bridge cranes, collision detection method of visual simulation system for bridge cranes is determined based on the collision detection principle. First of all, LOS intersection vector method is chosen based on the principle of collision detection in Vega. Hook is designed for the collision target using Isector module in Lynx and the same intersection vector masks in Isector Class are guaranteed. Then, the BUMP collision detection for hook is created by calling vgIsector functions in VC++ and BUMP detection method of hook is bounded with hook. Finally, conditional statements which ensure hook to move without collision are compiled. Therefore, the virtual scene around the hook is detected in real time. The results show that the phenomenon of passing through by mistake for the hook can be avoided applying the BUMP collision detection method in Vega software in visual simulation system for bridge cranes, and the accuracy for BUMP method detecting the goods is improved using LOS collision detection method.
Adaptive Fuzzy PID Force Control for a Prosthetic Hand
Authors: Zhu Gao Ke , Duan Xiao Gang , Deng Hua
Published: October 2013

An adaptive fuzzy proportional-integral-derivative (PID) force control strategy for a prosthetic hand is presented. The classical PID controller is also applied on the prosthetic hand as comparison. The parameters of PID controller are firstly tuned by Cut and Try method. Then a fuzzy logic system is used to adjust those parameters on line. Real-time force control experiments are realized on LabVIEW and PXI (PCI eXtensions for Instrumentation) real-time (RT) platforms. A rigid object and a compliant object are grasped by the prosthesis respectively to test the performance of controllers. Experimental results indicate that the adaptive fuzzy PID force controller is more effective than PID controller.
Research on Collision Detection Algorithm Based on OBB
Authors: Ding Xue Jing
Published: October 2013

To enhance the real-time and accuracy of collision detection in virtual environment, introduces oriented bounding box (OBB) technology of hierarchical bounding box collision detection algorithm:construction of bounding box, generation of bounding box tree, implementation of collision detection algorithm,overlap judgement of bounding box. Collision detection algorithm based on OBB in this article is applied to solve the problem of collision detection between rigid bodies.
Design of Intelligent Surface Water Monitoring System
Authors: Cheng Li Ping , Huang De Jie , Zhu Jing Xing
Published: October 2013

There are two key issues in the surface water monitoring, one is long-distance data transmission; second is the power to the monitor. The design uses Siemens TC35i module to transmit data, uses clock timing chips to control the working hours of low-power AVR microcontroller and phone modules. So the two problems are solved effectively. The PC-monitor-interface used LabVIEW software is also simple and clear, it can display real-time data; analyzes the trend of the data-curve; warn much earlier. The practical of result shows that the design is simple, good controllability, high reliability.
A Novel Fault Phase Identification Algorithm Based on EMD Transient Energy
Authors: Guo Xiu Cai , Kong Lin Lin
Published: October 2013

Research on analyzing fault signature of transient current energy, this paper proposes a novel approach to select fault phase of transmission lines based on EMD Transient Energy. In this identification algorithm first defines EMD Energy and Relative Energy Coefficient to represent the transient energy of fault current components in each phase. Then the EMD Energy magnitudes among three-phase are compared to sort the fault type and identify the fault phase. Though a mass of tests on EMTP/ATP, the performance of the identification algorithm indicate that the new approach can select fault phases exactly and fast, meet the requirements of automatic reclosing and present an applicable value for actual engineering.
Qualitative Simulation Theory and its Applications
Authors: Deng Lei Lei , Zhang Xian
Published: October 2013

Describes the background and qualitative simulation theory development, then describes the qualitative simulation and application of fault detection, fault detection Finally, qualitative simulation development are discussed. In order to deal with this kind of challenge, appear a series of system fault detection and diagnosis technology, including qualitative simulation technology is one of the important technical one. Through the Qualitative Simulation theory QSIM (Qualitative Simulation) related theory analysis and of the technology in fault detection field operation of the process of research, analysis found that the technology in the field of FDD advantages and disadvantages, in view of the existing shortage, it gives a fuzzy set theory and similarity principle on the make, theoretically perfect this model, and the detection and diagnosis research form an effective guidance.
Advanced Control of Boiler Drum Water Level Based on Cloud Model Theories
Authors: Kong Ling Da , Tian Chun Guang , Han Ting , Guan Ying Xin , Han Xiao Juan
Published: October 2013

In order to implement an excellent control for boiler drum water level at a power plant, nonlinear systems with long time-delay, a new intelligent control algorithm based on cloud model theories is proposed. According to the requirements of boiler drum water level control system, a two-dimensional cloud model controller is designed by incorporating deviation signals and deviation changing rates of the drum water level as its inputs, three parameters of PID as its outputs which are adjusted real-time by generating cloud mapping rules to realize fast and accurate control for the drum water level. Computer simulation shows that the cloud model controller proposed in this paper can significantly reduce the overshoot and response time of drum water level.
Direct-Drive Differential Volume Control Electro-Hydraulic Servo Control System
Authors: Zhang Zhu Xin , Jia Tuo
Published: October 2013

Direct-drive volume control electro-hydraulic servo control system, derivation model of single-rod hydraulic cylinder system, pointed out that when the reciprocating motion characteristics are inconsistent. In order to solve this problem, proposed direct-drive differential volume control electro-hydraulic servo system design of its control system and analysis of system models. Through theoretical analysis, validate this proposed direct-drive bad dynamic volume control system, symmetric dynamic performance, improving control system reliability.
Research on the Risk of Deep Foundation Excavation Engineering Management Based on RBS and AHP
Authors: Hong Qi Kang , Wang Jian Bo , Ge Juan , Chen Peng
Published: October 2013

As the rapid growth of national economy and further development of city construction, the exploitation of high-rise buildings and underground buildings is augmenting gradually, and leading to more and more deep foundation excavation that embrace difficult design, complicated construction technology, vulnerability to circumstance and other complex characteristics. A lot of accidents happen to deep foundation excavation in China every year, which severely affected our daily life and brought great losses to the corporations. Therefore, it is necessary to carry out effective risk management on the deep foundation excavation based on on-site surveys. This paper ascertains the main risks by the way of RBS, and with the help of adjudication by the experts and AHP methods, calculates the weights and makes sequence, then determines different corresponding risks followed by strategies put forward, so as to lay foundation for risk management in the construction corporation to effectively reduce the risk possibility and losses.
Relationship of Fractal Structure and Compactibility of Coarse Grain Soil in High Speed Railway Subgrade
Authors: Huang Ya Bing , Li Yan Jun , Jiao Tan
Published: October 2013

As an important factor that affects the compaction characteristics of the coarse grained fillers in the high speed railway subgrade, the grain composition is characterized by the application of the fractal theory. Several types of the coarse grained fillers were selected for testing and the results indicated that the relationship actually exists between the compaction characteristics and the fractal dimensions. The variation law of the maximum dry density fluctuating with the quality fractal dimension was analyzed and the results were supposed to estimate the compaction characteristics of the coarse grained fillers.
Study on Dynamic Characteristics of Circular Tunnel Concrete Lining
Authors: Lu Ling , Zhao Yang
Published: October 2013

The dynamic characteristics of concrete lining of a circular tunnel was studied combined with the Dahuofang water-conveyance project. The first ten frequencies and modes of vibration were presented. The influence of some factors on the vibration performance of the concrete lining were analyzed, i.e. buried depth, lining thickness, youngs modulus of rock, and water in the tunnel. The results show that the buried depth and the youngs modulus of rock have greater influence on the vibration performance of concrete lining than the lining thickness and the water in the tunnel. Some aseismic measures are given out for the similar engineering.
Shotcrete Support of a Ventilation Shaft in Hard Rock
Authors: Xu Shi Liang
Published: October 2013

Ventilation shaft is important for the operation of 18 km long Qinling highway tunnel. The main geological problems encountered in the shaft excavation are high geostress and rockburst. Shotcrete can provide effective support in the rockburst conditions during the excavation of shaft in hard rock. According to the classification of rock mass Q system and engineering experience, the parameters of shotcrete support with bolt and mesh are determined, and the numerical simulation is carried out for stability analysis. Finally the dry mix shotcrete technology is applied for the support.
Applications of Genetic Algorithm in Aqueduct's Optimization Design
Authors: Zhang Jian Wei , Wei Dong
Published: October 2013

A mathematical model for nonlinear constraints is introduced briefly in the paper. Aimed at optimum design of engineering with multivariable and nonlinear constraints, a new method of penalty function applying to GA in combination with the traditional idea of penalty function and Genetic Algorithm is put forward. Optimum design of a certain aqueduct is completed with the method, and good optimum results are given out. Study shows that the function of GA to search for the minimum and pleasing convergence rate is embodied sufficiently by employing the method. The study offers an effective tool for rational design of aqueduct and has certain referenced value for other engineering.
Comparative Analysis of Stability for Slope Engineering with Reliability Analysis and Limit Equilibrium Method
Authors: Zhang Chuan Ming , Zhao Yang , Zhou Hui
Published: October 2013

To take the natural differences of geotechnical materials into consideration, reliability analysis of slope stability with Monte-Carlo method was carried out on a slope of deep pit. The results show that Monte-Carlo method is equal to the limit equilibrium method, the most dangerous sliding surfaces matching the practice could be found according to the method introduced in this paper.
Finite Element Analysis on the Formation Mechanism of One Landslide in Tibet
Authors: Xu Xiao Hui , Chen Huie , Wang Gang Cheng , Xu Yan
Published: October 2013

Finite element method was used to simulate the regularities of distribution and diversification about the landslide displacement, stress and strain of left dam shoulder of one reservoir in Tibet. The mechanism of slope deformation and failure was achieved through analyzing landslide stress field distribution and formation mechanism. Results show that stress concentration areas mainly lay in the tension stress zone, weak rock plasticity zone and shearing export sectors. The results provide some theory basis for the safe construction normal work and control of the reservoir.
Research on Collapse Failure Process and Mechanism of Earthen Sites under the Action of Capillary Water
Authors: Zhao Gang , Ren Ke Bin , Ma Qing Wen
Published: October 2013

Due to the particularity of the ancient city wall, the collapse damage of ancient city wall earthen ruins is different from general soil slope failure. Through on-site observations and theoretical analysis, collapse failure process and mechanism of ancient city wall earthen sites under the action of capillary water is studied, and protection measures are proposed. Collapse failure process of earthen sites under the action of capillary water has the characteristics of particularity, diversity and stage. Capillary water reduces the stability of ancient city wall by changing the soil physical properties, chemical and ice split role. Finally, the effect of capillary water is illustrated through a specific project example.
Analysis on Progressive Slipping-Shear Failure Mode of Bedding Slope of Hard Rock with Medium or Large Dip Angle
Authors: Wei Yu Feng , Nei De Xin
Published: October 2013

Kala Hydropower Station is located in the midstream of Yalong River in Sichuan Province of China, and the type of dam is concrete gravity dam, with a largest dam height of 129 m, an installed capacity of 1000 MW and a storage capacity of 255.8 million cubic meters. The slope on the right bank of the dam site is mainly composed of hard metasandstone and marbles interbedded with carbonaceous slates and the dip of rock formation is the same as the aspect of slope, so that it is a typical bedding slope. The field survey indicates that the failure of bedding slope of hard rock is not on a common mode of slipping-bending or buckling, but on an uncommon failure mode. The paper introduces a research method that starts with geologic history, analyzes current state and predicts the future failure mode, analyzes the characteristics and phenomenon of slope failure, and adopts the finite element calculation method to analyze the plastic zone resulting from slope deformation. According to the deformation evidence and calculation results, the engineering geologic mechanical theory is used to analyze the deformation and failure mode of slope, and it is indicated that the current and future failure modes of hard rock slope with large thickness are all slipping-shear failure.
The Simplified Conversion Method for the O-Cell Load Testing Curve
Authors: Lu Liang Hui , Liu Ai Hua , Luan Xiao Bing
Published: October 2013

A new loading test self-balanced loading test is introduced in this paper. Compared with the traditional loading test, its test principles and load transfer theory are presented. Based on the results of the contrast experiments of two methods, the conversion method from the results of self-balanced test to the results of traditional loading test is put forward.
Analysis on Seepage Field and Seepage Control Measure around Kunlong Hydropower Project
Authors: He Guan Hong , Wang En Zhi , Liu Xiao Li
Published: October 2013

The Kunlong Hydropower has high water head and complex geologic environment. It is necessary to study the seepage field and the seepage control measure. In order to set up a three dimensional seepage numerical model around the dam site, double fracture seepage systems contained main fractures network and fractured rock masses is adopted. Pipe to represent a drain hole and fissure to represent a line of holes methods are used in simulation of drainage curtain. After setting boundary conditions and calculating parameter appropriately, the whole seepage field around the Kunlong Dam is calculated with the finite element method. The optimal depths of the impervious curtain and drainage curtain are determined by sensitive analysis. The implications of the analysis results on the design of the project are significant.
Static and Dynamic Analysis of Concrete Gravity Dam by ANSYS
Authors: Zhang Xin Zhong , Sun Xiao Na , Tang Ke Dong
Published: October 2013

Dam is the most important building in water conservancy, which generates enormously social and economic benefits in the national economy by providing green energy to all walks of the national daily life, and playing a important role in flood control for the safety of peoples lives and properties. However, as dam outburst will bring disastrous consequences to the downstream place, it is very important to ensure the safety of dam. By the large general software ANSYS for static analysis and the response spectrum analysis method for the dynamic analysis, this paper gives the security evaluation of a RCC gravity dam project, and provides some reference for similar engineering analysis.
The Research and Application of Dam Construction Technology of Rock-Filled Concrete
Authors: Liu Jun
Published: October 2013

The auxiliary dam of the upper reservoir of Baoquan pumped storage power station is filled with rock-filled concrete, which accelerates the schedule of construction, shortens the duration, reduces investment, and guarantees the quality of the construction effectively. This is the first application of rock-filled concrete in dam filling in hydraulic engineering, and it develops a new technology of using rock-filled concrete to fill dam, which provides valuable experience in the diversity and rationality of hydraulic engineering construction.
Stress and Deformation Characteristics of Asphalt Concrete Core Dam on Deep Overburden Layers
Authors: Bi Qing Tao , Ding Shu Yun , Jia Jing Chao
Published: October 2013

Taking the FEA of a 100m high asphalt concrete core dam on 120m deep overburden layers as an example, this paper discusses the stress and deformation characteristics of the high asphalt concrete core dam on thick moraine cover foundation, to provide reference for other similar projects. The calculation results show that there is obviously core arching effect in earth-rock dams with asphalt concrete core, and this effect will be weaken after water impoundment; the asphalt concrete core can adapt the deformation of the foundation freely. This paper also discusses the stress and deformation of the core of asphalt concrete core dam when water level fluctuation.
Prototype Site Cyclic Loading Experiments of the Reinforced Cushion Constructed by Geocell and Geotextile
Authors: Jin Shun Haoo , Liu Jun Zhe
Published: October 2013

In this study, prototype site cyclic loading experiments were carried out on the reinforced cushions constructed by geoocell and geotextile to confirm the stability of reinforced ground. The experiment reinforced grounds by some methods are constructed continuously in the site. The cycle loading is given by the load vehicle on the ground. As the results, the reinforcing effect of combination geocell with geotextile cushion was similar to that of combination geocell with geogrid cushion.
Study on the Rigid Pile Composite Foundation Based on Tangent-Modulus Method of Undisturbed Soil
Authors: Guan Da Shu , Liu Hui Kang , Li Yu Qi
Published: October 2013

Based on tangent-modulus method of undisturbed soil, rigid pile composite foundations with different cushion thickness, different cushion stiffness, different pile length and different pile diameter are studied. P~S curve and load sharing ratio of pile in different composite foundations are compared and several laws are summarized. It will give guidance to the setting of cushion thickness, the selection of cushion and the design of rigid pile.
Analysis of Ground Movement in Pile Driving Based on Stochastic Medium Theory
Authors: Meng Fei , Zhang Jia Sheng , Liu Hui Ying
Published: October 2013

In order to calculate the ground movement induced by displacement piles driven into horizontal layered soil, it is simplified to an axisymmetric problem. Then the vertical and horizontal ground movement functions were deduced based on stochastic medium theory. The vertical ground movement is a normal distribution function, while the horizontal ground movement is an exponential function. Utilizing field measured data, parameters of these functions can be obtained by back analysis. The example indicates that the stochastic medium theory is suitable for calculating the ground movement in pile driving, and there is no need to consider the constitutive model of soil or contact model of pile-soil interface in calculation. This method is fairly applicable in practice, and can provide a reference for related research.
The Unified Solution of Gravel Pile Limit Bearing Capacity of Single Pile Composite Foundation
Authors: Liu Qing , Ding Wei , Wang Ben , Liu Hong Hai , Wang Bing Yu
Published: October 2013

Based on the compaction effect of the gravel pile, the thick-walled tube model is established. Considering the gravel pile and pile materials with different properties of tension and compression of soil pile in the process of expansion, the influence of intermediate principal stress to improving the bearing capacity of foundation in the process of expansion, we use the planar axisymmetric double shear unified strength theory and present a gravel pile ultimate bearing capacity of single pile composite foundation unified expression. The theory study of gravel pile composite foundation and engineering practice has a certain guiding significance.
About the Geological Hazards Analysis Based on GIS
Authors: Li Xiao Gen , Zhao Dong Bao
Published: October 2013

In combination landslide evaluation with three-dimensional visualization of geographic information system and using virtual reality technology to build a 3D visualization platform for landslide assessment, as a whole, it is more vivid and intuitive synthesis of landslide visualization research. Based on the design principle of the analysis on system separately from the data acquisition and processing for construction of three-dimensional model, the landslide process rehearsal, stages of disaster evaluation and other aspects of the system are analyzed and studied, which provides a powerful tool for the study and prevention of geological disaster. Moreover, it can bring significant benefits to society, economic and ecological system.
Effects of Controlled Alternate Furrow Irrigation on Soil Water Movement and Water Utilization Efficiency of Soybean
Authors: Wang Ming Xia , Tian Jing , Wang Wei Dong
Published: October 2013

Controlled alternate furrow irrigation is one of the new irrigation methods. In order to research the adaptation of soybean, soil water movement and water utilization efficiency under controlled alternate furrow irrigation in the north China, the experiment was done with Lysimeter in Kaifeng. The results show that compared with conventional furrow irrigation (CFI), the controlled alternate furrow irrigation has suitable irrigation quantity that is not only helpful for enhancing water use efficiency, increasing yield, but also helpful for reducing deep percolation. Therefore, the controlled alternate irrigation is a feasible irrigation method in Kaifeng. However, the quantity of controlled alternate furrow irrigation can be too low to enhance the yield of soybean and economic benefit.
Influence of Masonry Infill on the Dynamic Characteristics of RC Frames on Slope, Part (II): Seismic Performance
Authors: Chen Zhi Xiong , Hu Ying
Published: October 2013

Slope structure means a structure built on a slope in the mountainous region. The aim of this study is to study the influence of masonry infill on the seismic characteristics of RC frames on slope. First, the main results of the calibration analyses using the infill model introduced in the Part (I) of the paper are presented. Second, the performance of different reinforced concrete two bay-frames, bare and infilled, subjected to eight seismic motions were investigated. The results show that if the infill is built correctly in all storeys, it gives a significant contribution to the energy dissipation capacity by reducing the dissipation energy demands in frame elements and decreasing significantly the maximum displacements. Therefore the contribution of masonry is of great importance.
Investigation on Seismic Performance of Self-Built House in Henan Rural Areas
Authors: Su Cong Cong
Published: October 2013

By means of questionnaire survey, this paper investigates seismic performance of 210 self-built houses in rural areas of Henan Province, analyzes the survey results and puts forward suggestions for self-built house earthquake fortification.
Dynamic Analysis of Arch Dam Based on Observed Earthquake
Authors: Liu Zheng , Guo Yong Gang , Qing Long Bang
Published: October 2013

A three-dimensional model of dam-water-interaction system was built. Three different materials were used to model the dam, and the acceleration response of arch dam under the observed seismic waves was simulated. The results show that the dynamic reactions of the arch dam under observed earthquakes can well match the monitoring values, which means the established model of the arch dam is reliable. In the future, when great earthquakes happen, the stress strain situation of the key positions can be quickly obtained by the finite element calculation, which could provide scientific support for post-earthquake safety evaluation and decision-making.
Seismic Behavior Analysis of Spillway Weir Section Based on ANSYS
Authors: Yue Jin Chao , Jiang Yong Xing , Zhang Hao
Published: October 2013

The response spectrum method was applied to calculate the seismic behavior analysis of a spillway weir gate. Based on the analysis of the structure performance, special attentions were paid to the stress state of the key parts on the surface and root of the pier. The results showed that the displacement and stress of the whole structure were related to the direction of earthquake excitation; large principal tensile stress and principal tensile stress area appeared in steep change points of geometry shape, special attention should be paid when calculating anti-seismic checking and reinforcement arrangement; the displacement and stress of the weir section met the standard requirements.
Method of Performance-Based Design
Authors: Wan Hai Tao , Yang Lin
Published: October 2013

In order to overcome some deficiency of design, American earthquake engineering and structural engineering experts have profound conclusion after the previous earthquakes, improved bearing capacity design method, put forward the theory of performance-based design. Methods of performance-based design mainly include displacement coefficient method; direct displacement based design method, capacity spectrum method and improved capacity spectrum method. Through the understanding of the main methods, enable us to better understand performance-based design, so as to improve the design of civil engineering.
Bibliometric Analysis on BIM Research in China
Authors: Sang Pei Dong , Ma Ting Ting , Zhang Jun Qiang
Published: October 2013

This paper by using theories and bibliometrics methods, researches the papers on Building Information Molding (BIM) from growth law of papers, distribution of paper authors, periodicals and keywords for the statistic and analysis with EXCEL, NOTEEXPRESS data analysis and processing tool. The research priorities and hot spots of BIM are summarized.
Discussion on Quality Assurance under Specification of Decoration Engineering
Authors: Zheng Qian , Zhao Qing
Published: October 2013

With the rapid development of decoration industry, a number of laws and regulations have been issued on quality supervision in the decoration engineering. However, there are still many problems and hidden troubles under the restriction of regulations. Therefore, this paper finds out the reasons from the aspects of technology, environment and human operations, and puts forward the suggestions for the regulation and quality assurance of decoration.
Comprehensive Promotion Measures of Urban Residence Acoustic Environment Quality
Authors: Wang Zhi Guo , Lu Mei Jun
Published: October 2013

As the urban rapid development and the continuous improvement of people's living standard, residents put forward higher request for sound environment quality of residential building. By analyzing the main factors influencing the urban residence acoustic environment, in view of site selection planning, architectural design, structural measures and other appropriate measures, reasonable noise control measures are put forward to improve urban residential environment quality and provide residents with a quiet sound living environment.
Goals and Operation of Green Building
Authors: Zhang Zhi Jun
Published: October 2013

Green building, also known as green construction or sustainable building, refers to a structure and using process that is environmentally responsible and resource-efficient throughout a buildings life-cycle from siting to design, construction, operation, maintenance, renovation and demolition. This requires close cooperation of design team, architects, engineers, and client at all project stages. The green building practice expands and complements the classical building design concerns of economy, utility, durability and comfort.
Design Suggestions of New Rural Communities on Rural Living Habits
Authors: Wang Gui Xiu
Published: October 2013

Development of rural community relates to the overall development of China's urbanization, and is one of the key issues to improve farmers' quality of life. This study attempts to find out problems in the new community through investigation on the new type rural communities currently, analyzes root causes of problems, different agglomeration state, traditional living habits, living factors between rural and urban, sums up full functionality mode of new rural communities, and gives the concrete proposal in community planning, public space and residential construction.
Study on the Waterscape Design of Modern Residential Districts
Authors: Sun Yan
Published: October 2013

Based on analysis of the current situation of water view residences, this paper discusses the importance of waterscape design in modern residential districts and the existing problems of current research including management and structure design of waterscape, nature ecological environment destruction, waterscape design and utilization of resources. Several proposals are put forward such as ecological, regional, integration and sustainable development, to the waterscape design to keep the sustainable development.
Energy Conservation and Green Building Design of Library Case Study on the New Hubei Library
Authors: Li Yan
Published: October 2013

As the major public buildings and cultural service institutions, libraries play an important role in the strategy of energy-saving buildings. In order to keep pace with the footstep of Western developed countries, China has launched a series of green and energy-saving building practices and achieved certain results. The New Hubei Library is a successful example, with Chinese national conditions and the characteristic of the library itself taken into consideration, and limited conditions in the design process fully made the most use of. Besides the designer has efficiently used energy-saving strategy on building structure maintenance, solar radiation, air conditioning control system and natural ventilation, finally achieved the goal of energy saving of library.
Construction Pollution and Green Construction Technology
Authors: Wang Li Wen , Bao Hai Rong
Published: October 2013

This paper, through the analysis of the construction features of civil engineering in each stage, analyzes the factors of adverse effects of construction activity on the environment; aiming at pollution sources, the specific characteristics and pollution status of construction, such as dust, noise, waste and other pollution sources, puts forward corresponding countermeasures and material methods, water conservation and green construction control to reduce the pollution of the environment; explores the effectiveness of some green construction techniques, such as plate construction method of the rebar lifting stool control plate reinforcement protective layer and thickness, and new prefabricated concrete structure, on the prevention and control of of environmental pollution from construction projects. The purpose is to find the method to maintain the construction and harmonious development of environment in the system, in order to be more active and effective implementation of environmental management of the construction of civil engineering.
Evolutionary Game Analysis of Participants' Conflict Negotiation in Construction Project
Authors: Fu Xin , Ren Xiao Yuan
Published: October 2013

Conflict is an important factor influencing construction management performance. Construction project participants mutual game behavior in the conflict negotiation process is analyzed by KMRW reputation model. Establish imitator dynamic evolution model between general contractor and owner to analyze two evolutionary stable strategies, cooperation and competition in conflict management. It results that adopting cooperative strategy by every participants is the stability foundation to keep the conflict negotiation system evolve to cooperation. And discount rate, excess return, initial investment of cooperative are three major factors affecting evolution of the conflict system. Digital simulation show that initial investment has negative effect on possibility of cooperation; when discount rate is enough large, excess return has positive effect on possibility of cooperation; when discount rate isnt enough large, excess return has negative effect.
Optimal Scheme of Solving the Problem of Construction Enterprise Formwork Inventory with Storage Theory
Authors: Xie Bing Ying
Published: October 2013

The storage theory which plays a unique role in the application field of inventory management and spare parts adjustment has received extensive attention and application. However, the current researches on the application of the storage theory of intermittent return warehousing management are not sufficient enough. Under the support of the deterministic storage principle, this paper centers on the research of solving the problem of the optimal scheme of construction enterprise formwork inventory with the storage theory.
Form Finding and Loading Analysis of ETFE Cushions Using Interaction Numerical Model
Authors: Li Peng , Yang Qing Shan
Published: October 2013

The enclosed air plays a significant role in form-finding and loading analysis of ETFE cushions. A new numerical model of ETFE cushions is proposed in order to consider the interaction effects between outer membrane and internal air. Then the form-finding and loading analysis of a regular hexagon ETFE cushion are performed and compared with experimental study. It is shown that the numerical results are in good agreement with the test results. The interaction FE model can be used in static analysis of ETFE cushions.
Statistical Damage Constitutive Model for Concrete under Biaxial Tension
Authors: Bai Wei Feng , Zhang Jun Hong , Guan Jun Feng , Cui Ying
Published: October 2013

Based on the statistical damage theory and the experimental phenomena, the statistical damage constitutive model for concrete under biaxial tension is proposed. The two meso-scale damage modes, rupture and yield are considered, and the whole damage evolution process is driven by the principal tensile damage strain. The results show that the proposed statistical damage model can accurately predict the constitutive behavior in the uniform damage phase for concrete under biaxial tension. The damage mechanism is discussed in the view point of biaxial strength and deformation properties.
Customer Satisfaction Assessment of Endowment Real Estate in our Country
Authors: Guo Xiao Juan , Bai Qing
Published: October 2013

The deepening of the aging degree, the large demand make endowment real estate market contains huge potential for development. Existing endowment real estate projects have its positives in many aspects, but there are also some deficiencies. In this paper, the population aging situation in our country and the development status of endowment real estate are analyzed, and combining with the demand characteristics of elderly customers, elderly property customer satisfaction evaluation index system is established, using this system to compare and analyze the current three typical endowment real estate project, and propose the corresponding improvement suggestions in order to provide reference for the development of endowment real estate in future.
The Analysis of Tourism Village's Residential Pattern
Authors: Lang Ling Yun , Xie Ke
Published: October 2013

The development of rural tourism industry puts forward higher requirements for village environment. Under the precondition of satisfying life and production requirements of villagers, the needs of tourists for accommodation, tourist shopping and entertainment should be satisfied. In order to attract more tourists, tourism type village gets better development. In this paper, take Guoliang village as an example, the existence and problems of tourism village construction are discussed, residential layout types of tourism type village such as residential, residential apartment, hotel apartment are put forward.
Optimization and Simulation Analysis of City Bottleneck Sections Based on VISSIM
Authors: Xu Xiu Hua , Ge Zheng Yi , Gao Chao
Published: October 2013

As urban bottleneck sections are important reasons that contribute to urban traffic congestion, the effective solutions for them can greatly ease traffic congestion. After the convey of the present traffic and traffic flow of the Ba Liqiao segment of the Latitude 12th Road, which is the typical bottleneck section, the paper puts forward the optimization program and uses VISSIM to simulate the Ba Liqiao segment of Latitude the 12th Road of Jinan City. The optimized evaluation results of this bottleneck section are given out.
Research on the Hierarchical Design of Disaster Prevention Sign System for Library Buildings
Authors: Chen Yan Ran , Niu Li Chao
Published: October 2013

This paper is based on the investigation of the current status of the disaster prevention signs for public buildings (such as libraries) and the analysis of relevance between disasters and the disaster prevention signs, puts forward new proposals for the design method of disaster prevention sign cognition system for public buildings through three aspects, the region division, the setting of level and the systematic design. With the introduction of zoning and the combination to the grade-level of library buildings, the method is raised to set the level of disaster prevention sign system to ensure the efficacy and economy of the signs. As to the disaster prevention signs itself, reinforced on the design of disaster prevention sign system in the forms, details and humanistic aspects, can observably improve the design of the sign system and achieve the unity, continuity and systematicness of the disaster prevention sign system, which can also optimize and improve the cognitive effect of the disaster prevention signs finally.
Investigation and Research of the Ancient City Wall of Xunxian Countyarea Characteristic Update Strategy
Authors: Gao Chang Zheng
Published: October 2013

Through the use of investigation method of line-point, and the field investigation and study of the ancient city wall of Xunxian County historical area of traditional residential architecture, key historical relics and characteristics of the status quo, this paper summarizes the courtyard layout, material, construction technology and geographical environment of Xunxian County traditional residential area to adapt to the historical characteristics and cultural value. The ancient city wall of historical district is discussed to explore a retains for its original culture, and meet the needs of the development of city while protecting the history and the ancient city of the whole area of the long history of cultural by "Point-Line-Face" update strategy.
A Numerical Study on Cornice Barrier to Vertical Spread of Opening Spill Plume from Underground Garage Fire
Authors: Xing Xue Fei , Li Yan Feng , Li Jun Mei , Li Shi Qiang
Published: October 2013

Vertical spread of opening spill plume from underground garage fire is studied by FDS. How can cornice barrier prevent the vertical spread of opening spill plume under the effect of the thermal buoyancy is analyzed. Optimal technical solutions and design parameters are proposed to improve the fire safety of underground building and adjacent buildings. This study can provide theoretical and technical reference for the underground building design.
The Research of International EPC Project Risk Factors - A Case Study of Congo (Brazzaville), State Highway 1
Authors: Xu Wan Cai , Wang Zhou Ya , Shen Cheng , Li Xiao Dong
Published: October 2013

This research focuses on the risk management of the international EPC project of Congo (Brazzaville) State Highway 1. By grading the importance and the probability of risk factors occurring, the impact of risk factors can be found and the corresponding measures can be come up with. It provides reference to the similar international EPC project risk management, and promote the competence of Chinese construction enterprises in risk management and theoretical application.
Service Quality Control of Agritainment Supply Chain
Authors: Zhang Shu Hai
Published: October 2013

ntroducing the principle and method of object supply chain management into representative of service industry--tourism industry, this paper constructs the structural model of agritainment supply chain, analyzes its property and basic characteristics and its premise of quality control. Meanwhile, it puts forward the main strategies of improving service quality control of agritainment supply chain.
Effect of Radial Inertia Confinement on Dynamic Compressive Strength of Concrete in SHPB Tests
Authors: Chen Tao , Li Qin Bing , Guan Jun Feng
Published: October 2013

This paper extends the study of Dharan on the stress state in an elastic solid specimen subjected to axial strain acceleration to compressible materials. And an improved Dharan model is presented. Based on the Drucker-Prager strength criterion, analytical equations of the radial inertia confinement effect on dynamic compressive strength of concrete in split Hopkinson pressure bar tests is derived. Comparison and discussion on the analytical, experimental and numerical results are performed. It is proved that the strain rate effect of compressive strength of concrete materials is a pseudo material property partly caused by the radial inertia confinement. Special attentions should be paid to dynamic tests of low-strength concrete to get the real mechanical properties.
Influence of Reinforcement Ratios on Concrete Fracture Parameters
Authors: Fan Xiang Qian , Hu Shao Wei , Lu Jun
Published: October 2013

Based on double-K fracture model, adopt three-point bending beam which has been recommended by RILEM, the fracture properties of three groups reinforced concrete beams were studied. Refer to the relevant literature, fracture parameters of reinforced concrete three-point bending beams are examined. Through the analysis of whole process of crack propagation of reinforced concrete three-point bending beams, the results show that the reinforcement ratios can't preventing the cracking effectively, but can increase the maximum loads, thus improving the relative toughness; the precritical crack propagation length relative values show a linearly increasing trend with the increase of reinforcement ratios; the initial fracture toughness is not affected by the reinforcement ratios, but the unstable toughness has little effects by the reinforcement ratios.
Effect of PVA Fiber on Flexural Properties of High-Performance Concrete
Authors: Liu Rui Min , Liu Wei
Published: October 2013

In order to study the effect of the fraction of PVA fiber on the axial compressive strength and flexural properties of high performance concrete, a series of tests have been conducted in this study. The middle span deflection was measured by a micrometer with dial indicator, and six different concrete mixes have been chosen. Flexural properties include flexural strength and flexural modulus of elasticity. The mechanism of PVA fiber acting on axial compressive strength, flexural strength and flexural modulus of elasticity has been analyzed in details. The results indicate that there is a tendency of increase in the axial compressive strength and flexural strength when the fiber volume fraction is below 0.08%, and the flexural modulus of elasticity of high-performance concrete decrease gradually with the increase of fiber volume fraction.