bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of Wearable Upper Limb Orthosis for Training and Rehabilitation without Actuator
Authors: Chen Xian , Chiu Yi Jui , Chen Dar Zen
Published: October 2012

This paper describes a wearable upper limb orthosis that could be integrated within a home-based rehabilitation system for stroke patients. This orthosis consists of links and the installation of springs. First, the advantages of this design are with no actuating motors, with simple structure, and with lightweight, but with similar benefit as other therapeutic robots. Second, through the installation of springs to provide with spring force, when patients wearing this upper limb orthosis will feel the resistance, to benefit for more effective muscle rehabilitation exercise. At last, the advantage of this design is that due to the installation of springs and springy clamp one, users wearing the upper do rehabilitation training according with human skeleton movement trajectory, which makes users comfortable and that contributes to biceps, triceps, and deltoid muscles on the upper arm and shoulder training.
The Fiber Measuring Method for Rotating Parts Comprehensive Vibration
Authors: Xiong Ping , Zhao Deng Feng , Zeng Guo Ying , Huang Juan
Published: October 2012

Light propagation in the air is easily affected by the environment. Shaft bending vibration and torsional vibration are needed to be measured at the same time. The different vibration state are coupled each other. For these reasons, it is necessary to design the optical fiber laser Doppler measurement system and develop the integrated optical fiber system, which is in favor of various vibration modes decoupling and can improve the signal-to-noise ratio. The double parallel beam differential scheme is adopted in the torsional vibration measurement, which the light exposed in the air is coupled into the optical fiber. The optical fiber heterodyne Doppler interference measuring method is adopted in the bending vibration measurement. The laser Doppler vibration measurement technology is applied to a rotating shaft vibration measurement. Comprehensive measuring technology is developed, which can simultaneously measure bending vibration, torsional vibration and the rotation speed of shaft.
Research of Product Design Strategy
Authors: Xie Zhi Bin , Bu Zhi Qiang
Published: October 2012

The article investigates strategy of company's product design and development considering the whole lifespan of product and the development course of enterprise. It suggests enterprises of different nature, enterprises at different developing stage will adopt different mode strategies. It also announces close causality between development course of company and central technology and product.The result indicated in different developing stages such as company development period, crisis predicament period, lasting steadies period, improving by payback period, issues steadies secondary period, declining go and live period, enterprise should pursue different mode product tactics of research and development such as shrinking strategy, consolidating strategy, innovation keeping forging ahead strategy. Enterprise should break regular management mode so as to introduce different research and development mode to promote enterprise's competitiveness effectively.
Research of Role of Mature User in Product Design and Symbol
Authors: Jiang Wen Wen , Xie Zhi Bin
Published: October 2012

This paper adopts methods of longitudinal comparison, classification research, expand competition field and verify to research for role of mature user in product design and symbol. It found that multiple levels of demand which mature user proposed would strengthen function quality and kinds of products services. Common function of mature user and enterprise would make enterprises be in advantage over competition status in market expansion process. Product shape symbolizes their inner special function, also symbolizes the type of person who use it. Product symbol system can be independent of material base to form its own unique spiritual value. The results show that mature user, designer and bystander can jointly established vulgarly product specific symbol meaning. Product symbol function has three characteristics as qualitative, openness and systematic. Correct assessment to product economic characteristic with high additional value of symbol can effectively avoid risk and fraud, and make social and economic returning benefits.
Research of Design Method of Product Function Analysis and Combination
Authors: Jiang Wen Wen , Xie Zhi Bin
Published: October 2012

This paper adopts methods of longitudinal comparison, classification research, expand competition field to research for design method of product function analysis and combination based on user research. It found initiative combination of product function and technique could share technology platform and spare module organization to form different varieties of product in functional detail, market orientation, and functional emphasis, avoid to carrying out fierce competition with competitor in narrow market area. It is benefit for company pursuing different strategy. R&D team should maintain validity and direction of design, analysis, and manufacturing work. High efficient pursuing situation from competitor, sale situation from user market would increase urgency and psychological pressure of R&D team and manufacturer, thus improve efficiency of research and development. The results show that fundamental goal of R&d team carries on product function analysis is tightly grasp functional use essence of future products to allocate various of resources to achieve product function index, satisfy user demand by best way.
The Research of Humanized Design of Mechanical Equipment
Authors: Pan Jian Wei
Published: October 2012

The requirements of modern industrial mechanical equipment not only stay in the realization of its basic functions, but pay more attention to issues of the humanized design involved in product design. During the design process of mechanical equipment, the pursuit of rational functions, the full consideration to human needs, the formation of efficient human-machine communication, and the improving of the product quality are the significances of the humanized design. Therefore, the studying of the humanized design of mechanical equipment not only has its theoretical significance, but also has very important practical significance. The application of humanized design concept in mechanical product design is analyzed and researched in this paper. It is necessarily demonstrated humanization design concept applied to mechanical equipment product design from mechanical equipment safety, easy operation, form, color, mechanical equipment operator mental model five aspects.
The Investigation on the Influence of Cultural Consideration in Shape Segmentation
Authors: Wu Yu
Published: October 2012

Shape grammar has been used widely to analyze and generate designs by its computation and generation ability. In shape computation, shape segmentation is very crucial for choosing constituents and the change of the constituents always causes the change of the shape rules totally. However previous research on shape segmentation cannot provide a reliable method to segment the shape into constituents when calculating with shape. In this study, we propose a culture related approach that can help designer deciding the constituent in shape segmentation. We investigate cultural considerations that embedded in the artifact and explore how these cultural considerations can help determining the constituent and the way to segment the shape. A case study is conducted to demonstrate how the cultural considerations can be used to provide cultural hints to choose the constituents in shape segmentation.
The World Expo in 2010 by Chinese Building Development Prospects
Authors: Wang Zi Jia
Published: October 2012

2010 Shanghai World Expo will be "Better City, to make life better" as the theme, which includes five sub-themes: urban and economic development of the relationship between、cities and sustainable development of relations, urban and rural interaction between, urban and high-tech development of relations, urban and multicultural development. Its meaning is to require more livable environment, better quality of life, this is the dream of mankind in the new century. This article focuses on people-centered concept, a true understanding of human hope and desire of the prospects for urban development. Learn from the World Expo, looking back at the Chinese architectural development, we will find that China is its unprecedented pace of development and the influence and role in the world political economy and international affairs, deeply attracted worldwide attention. Only adapt to the needs of the Chinese social and economic development, according to China's development resources and environmental conditions in order to build green, ecological architecture, Chinese architecture may go down the road of sustainable development. Thus clear, Expo will not only bring a new concept of the Chinese people for building development, and also sublimation of the peace and development, mutual promotion and common progress, this is based on the eternal theme of the whole world.
Synchronized Loading and Unloading Containers Method Based on Simultaneous Hatches Operations
Authors: He Yun Yan , Hu Yan Hai
Published: October 2012

Based upon synchronized loading and unloading containers method, a multi-objective optimization model was established. Minimizing the weighing vehicle transporting time and quay-crane(QC) handling time is taken as the objective. When the container ship reached the terminal, loading and unloading work was beginning. The optimal operational sequence of hatches in a bay was obtained by optimized computing, as well as the shortest handling time of vehicle and quay-crane. By numerical simulation, the efficiency is improved 22.62%~31.47%; the average rate of increase is 27.01%. The results illustrate the feasibility and efficiency of the proposed synchronized loading and unloading containers method by comparing with the traditional operations method.
Research on Green Manufacturing Model for Circular Economy
Authors: Rong Jia Qi , Ling Li
Published: October 2012

Green Manufacturing and Recycling Economy is the basis for the sustainable development of human society, is also the direction for the future development of manufacturing industry. This article describes the concept of Green Manufacturing and Recycling Economy, analyses the work of Green Manufacturing processes, from product design, production, recycling-oriented three-pronged explained, and presents three suggestions of Green Manufacturing for circular economy, including extending the product life cycle, establishing enterprise's return goods processing center and strengthening cooperation with relevant manufacturers. Through these methods can enable enterprises to achieve the recycling of materials and energy, and enable enterprises to reduce production costs, improve core competitiveness.
A Discussion of Building a 3D Model Database and Information Query Plat-Form of Huizhou Traditional Dwellings Decorative Art
Authors: She Xing , Wang Hai Bo , Xiao Wang Qun , Yan Qun
Published: October 2012

This thesis has demonstrated the feasibility of setting up the 3D model database and information query platform of Huizhou traditional dwellings decorative art, by using the digital information acquisition and processing technology, and summarized the terminal design method as well. It provides a technical service means and ways for the research of Hui-style dwellings construction, inheritance of Hui-culture and the related art design practice. This terminal provides a new model of the promotion, propaganda, application and development to the world, for the Hui-style dwellings construction decorative art. It will enrich the digital contents of Hui culture, which has the important practical and strategic significance to the construction of "digital Anhui".
The Measurement of Liquid Surface Tension by Optical Technique
Authors: Zhang Peng , Luo Dao Bin , Liu Jian Ke
Published: October 2012

Based on the laser technique, a method of detecting liquid surface tension was proposed. The relation between the laser diffraction pattern and liquid surface tension is derived. In this experiment, laser diffraction patterns from liquid surface waves were collected .The experiment results show that the proposed way is feasible.
The Study of IOT Based on RFID
Authors: Ding Wen
Published: October 2012

the IOT (Internet of Things) technology is another major breakthrough in the contemporary information technology, a new information technology outcome after the computer and Internet technology which is very important to change the way of our future life and production. This paper studies the composing principles of the IOT system and analyzes the application of RFID (radio frequency identification) technology in the IOT in detail.
Design of Remote Measurement and Control System of Seawater Cages Breeding Site
Authors: Zhao Qiu Liang , Hu Ji Ming , Liu Juan Yi , Li Liang Er
Published: October 2012

For the measurement and control of seawater cages breeding site, network communication scheme of the remote measurement and control was firstly designed, and the hardware realization of the system was discussed. The system development environment was built, including the Boa transplantation, Sqlite3 transplantation, and wireless network card transplantation, etc. Finally the system software was designed, including the data acquisition, data storage and web page display, etc. The test results show that the system can achieve remote real-time measurement and control requirements.
Automation of Power Systems Based on FACTS Controller
Authors: Zhang Xue Ping , Zou Huan , Yang Yan Xin , Zhang Nan Hui
Published: October 2012

This paper firstly introduced the power system and its significance of automation, and then introduced the power system automation classification and performance, describe function and influence of FACTS controller in the power system automation, Parallel type FACTS device, series type FACTS device, mixed type FACTS device, has great development potential in the future. In the related field has a strong reference value.
The Research of Load Balancing in Wireless Sensor Network (WSN)
Authors: Pei Fang , Zhang Jie
Published: October 2012

Wireless sensor network (WSN) is one of the key technologies of the Internet, and the problem of load balancing is an important content of the wireless sensor network (WSN). First wireless sensor networks and their characteristics are introduced in this paper, and then bottleneck network problem which is caused by the wireless sensor networks due to the presence of physical obstructions or uneven energy consumption in a real environment is studied, and a solution to optimal routing protocols based on load balancing is proposed.
A Design of Cesium Atomic Magnetometer Based on Circular Dichroism
Authors: Zeng Xian Jin , Hao Mo Si , Li Qing Meng , Liu Qiang , Zhang Jun Hai , Sun Wei Min
Published: October 2012

Recently, atomic magnetometers have been reported as the most sensitive magnetometers by completely eliminating the spin exchange relaxation. In this paper, we described a design of highly sensitive cesium atomic magnetometer based on circular dichroism, which had the advantage of easily locking the probing laser to the necessary frequency compared with those based on circular birefringence. In order to polarize the cesium atoms uniformly, the pumping laser light was separated into two counter-propagating and counter-circular polarization beams through the atomic vapor cell. We employed a circular analyzer optical configuration to measure the ellipticity of the probing light, which indicated the amplitude of the magnetic field. The external magnetic field was tracked by a digital auto frequency tracking system.
The Effect of Equal-Channel Angular Extrusion to the Cast Aluminum Alloy Materials
Authors: Zhang Guo Ping
Published: October 2012

With the rapid development of modern world aerospace science and technology, hi-tech weaponry and high-speed transportation tools, industrial production and high-tech equipment manufacturers have increasingly urgent demand for high-performance metal materials. The cast aluminum is a new aluminum alloy series developed by foundry industry recently. Because it does not need the solid solution hardening process and has good mechanical properties, it's loved by the manufacturing sector. This paper targets at channel angular deformation direction to study the cast aluminum tissue material .
Computer Simulation of Forming Technology of Thin Aluminum Engine Cylinder Liners Based on LS-DYNA
Authors: Liu Han Wu , Ren Hong De , Lv Han Xun
Published: October 2012

The high-silicon aluminum alloy by spray deposition forming is well suited for the engine cylinder liner because of the need of high strength and abrasion resistance, but its forming process is much complex, and many process parameters are involved. In order to lower the investments of time, labor power and money due to the traditional processing methods that need to adjust the craft parameters frequently, the thermal extrusion process and the spinning process that are the most important forming processes in aluminum alloy cylinder liner forming are simulated by the finite element simulation technology. It is found that during the extrusion process, the equivalent stresses near the die are larger, and uneven, the stress gradient is very large, but the maximum stress does not exceed the allowable stress of the material through the numerical simulation; In the spinning process, the stress and deformation are larger at the beginning of the process, but they will have a slight decreasing with the spinning process going on. Throughout the spinning process, the equivalent stress and strain distribution of the spinning component maintained a relatively balanced state basically, which is consistent with the later experimental results. It proves the reliability of the the simulation.
Sol-Gel Combustion Synthesis and Properties of Nanocrystalline TbxY1-x Al3(BO3)4（0≤x≤0.2）Phosphors
Authors: Zhang Peng , Luo Dao Bin , Liu Jian Ke
Published: October 2012

Single phases of TbxY1-x Al3(BO3)4（0≤x≤0.2）phosphors were synthesized by a sol-gel combustion method with citric acid as fuel and complexing agent. Our method involves only exothermic decomposition of an aqueous citrate–nitrate gel and the gel yielded nanocrystalline TbxY1-x Al3(BO3)4 phosphors at 1000°C, without any formation of intermediate phase. The optimal doping concentration of Tb3+ ions in the serials was found to be approximately 12mol%. The decomposition of the gel was investigated by TG–DTA. The product has been further characterized by X-ray powder diffractometry (XRD) and fluorescent divide spectroscopy (FDS).
Moving Object Tracking System Based on Particle Filter on FPGA Design and Implementation
Authors: Song Jun , Wu Han Wen
Published: October 2012

In view of the large amount of calculation and long operation cycle in the particle filter tracking algorithm. This paper puts forward a particle filter designed in the FPGA platform, using fast calculation speed and parallel processing mechanism of the FPGA to improve the processing speed and performance of the system. The experimental results show that the system has a good real-time and tracking accuracy. Its portability is strong, and having a broad prospect of application.
Large Forging Expert System of Diagnosis
Authors: Li Rong Chang , He Ai Xia
Published: October 2012

The diagnosis of forging process for large problems, the use of advanced expert system for diagnosis of large forging process, forging process design of a large diagnostic expert system structure is discussed in detail the working principle and function of each module, and to the knowledge representation and reasoning mechanism of the development of key technologies such as policy, practice shows that the expert system can solve large-scale forging process design and diagnosis of problems in the field, in large forging process improvement theory and techniques to improve the forging process with large modules scientific, intelligent with significance.
Study on Energy-Saving Driving Mode during Cornering for Motorized Wheels Driving Vehicle
Authors: Zhang Huan Huan , Yang Guo Ping
Published: October 2012

In order to study the energy consumption feature when cornering for motorized wheels driving vehicles, the resistance force on the driving axle was analyzed. A creative method quasi-neutral steering was proposed for vehicle cornering. A motorized wheels driving vehicle model was established, and the simulation of constant speed cornering was performed when the yaw rate as the parameter to control the front-rear torque distribution and the lateral acceleration as the parameter to control the left-right torque distribution. The results indicate that no wheel slipping is happened when quasi-neutral steering. The torque on the rear outer wheel is more than other wheels, and the torque on the outer wheels is more than inner wheels. The power consumption decreases 1.15% by quasi-neutral steering.
The Study on Power System Protection Algorithms and Fault Detection Using Model-Based Methodology Based on Structural Analysis
Authors: Duan Zheng Zhong
Published: October 2012

This study presents a model-based methodology based on structural analysis that has the potential of having a technological impact on the design of diagnostic systems for power systems. The methodology utilizes the analytical redundancy inherent in the system structure and provides a strategy for systematic and automatic evaluation of power system topologies with respect to their monitoring (fault detection and isolation) potential.
Impact Analysis of Electric Vehicles Charging/Discharging
Authors: Zhang Xiao Yang , Yang Hong Ming , Wu Jia Jie , Xiong Luo Cheng
Published: October 2012

The penetration of a large number of plug-in hybrid electric vehicles (PHEVs) has introduced severe challenges to power grid operation. In this paper, the grid-connected PHEV model is first proposed to reflect the charge/discharge property of PHEV. Then, a simulation approach is developed to study the probability distributions of the aggregate load and available vehicle to grid (V2G). capacity of PHEVs. Simulation results show that the charging and discharging capacities have the characteristic of normal distribution．
Simulation and Research of the EAF Characteristics under Voltage Flicker Using MATLAB
Authors: Hu Lei , Huang Zhen , Chen Bo Wen
Published: October 2012

Ower quality is becoming a more concern of today’s power system engineer due to the rapid growth of non-linear loads, such as power electronic control equipment and electric arc furnace (EAF). Harmonics and voltage flicker are the power quality problems which are introduced to the power system as result of non-linear behavior of the electric arc furnace operation. There are numbers of arc furnace models. This paper presents a time domain model which is used to study its behavior on the power system using MATLAB. To analyze the method, several characteristics for different operating conditions are investigated.
Portable Personal Electric Scooter Optimization Design Research
Authors: Feng Ren Yu , Tang Yi , Wang Hai Lan
Published: October 2012

Portable personal electric scooter has the application of great development potential. This paper first studied overall scheme optimization design, and then the division a optimized and design, includes Motor and transmission Optimized selection , Battery energy system Optimized selection, Motor driver and vehicle control circuit, Charging system research finally draw optimization design results and related parameters.
Numerical Simulation of Flow Field of Cavitating Water Jet in Angel Nozzle
Authors: Guan Jin Fa , Deng Song Sheng , Hua Wei Xing
Published: October 2012

Physical model of angle nozzle was established. Based on the CFD software of FLUENT, the flow field about cavitating water jet in angle nozzle was simulated by use of mixture model, Singhal complete cavitation model, RNG turbulent model and SIMPLEC algorithm. The simulation results show that there are two low pressure regions and two regions of high volume fraction of steam in angle nozzle. The region of high volume fraction of steam corresponds with low pressure region. The region of high volume fraction of steam mainly lies near the exit of column section and approximates to a semicircle. In this region, the volume fraction of steam reaches the maximum value at a point of on-wall. Taking that point as the centre, the volume fraction of steam decreases gradually from interior to exterior.
The Research of Qubit-Field System Quantum Entanglement under J-C Model
Authors: Chen Zuo Peng , Gao Jin Ran
Published: October 2012

In this article we plan to get a equation about the concurrence. We select the J-C model, then introduce the double-cavity and double-atom system in this model, and consider the two-atom entanglement. By using the Taylor expansion to calculate the quantum correlations concurrence in this system. Finally we deduce this equation which can predict the sudden death and rebirth of the spin quantum entanglement.
Design and Layout of a High-Performance PWM Control Class D Amplifiers IC Systems
Authors: Chen Ruei Chang , Lee Shih Fong
Published: October 2012

This paper presents the design and implementation of a novel pulse width modulation control class D amplifiers chip. With high-performance, low-voltage, low-power and small area, these circuits are employed in portable electronic systems, such as the low-power circuits, wireless communication and high-frequency circuit systems. This class D chip followed the chip implementation center advanced design flow, and then was fabricated using Taiwan Semiconductor Manufacture Company 0.35-μm 2P4M mixed-signal CMOS process. The chip supply voltage is 3.3 V which can operate at a maximum frequency of 100 MHz. The total power consumption is 2.8307 mW, and the chip area size is 1.1497×1.1497 mm2. Finally, the class D chip was tested and the experimental results are discussed. From the excellent performance of the chip verified that it can be applied to audio amplifiers, low-power circuits, etc.
Study on the Maintenance Capacity of “Man-Machine System” Based on Fuzzy Comprehensive Evaluation
Authors: Sun Yong Jun , Qu Yi
Published: October 2012

This paper, in accordance with the maintenance capacity of “Man-Machine System”, holds the core of the “Man-Machine System” and employs the analysis methods of the complex system, brings forward the model of the three-layer comprehensive evaluation based on fuzzy mathematics, then brings out the methods of the index weight and studies the maintenance capacity’s evaluation algorithm on the foundation of the quantitative analysis. In the last it gives the application of the model and algorithm by using the instances and studies the changing maintenance capacity including the stability and the undulation, which provides one thought for scientifically evaluating the maintenance capacity of “Man-Machine System”.
Design and Simulation of a Kind of Ultrasonic Deicing Acoustic System
Authors: Zhang Yun Dian , Han Long Shen
Published: October 2012

Ultrasonic deicing is a new method of deicing. This paper analyzed and designed a kind of ultrasonic deicing acoustic system, then simulated it with the ANSYS, which is a kind of finite element simulation computer software used to do finite element simulation work. The results indicate that the frequency and mechanical properties of the acoustic system meet the expectant demand.
Poincare Sphere Method in the Analysis of Fiber Polarization Mode Dispersion
Authors: Wang Feng , Feng Li Zhen , Wang Kuan
Published: October 2012

With the continuous improvement of the optical fiber communication rate, polarization mode dispersion (PMD: Polarization mode dispersion) is gradually depth. PMD will cause the light pulse signal wide during transmission, and in the signal transmission process continuous accumulation, damage to the transmission performance of the system, limit the system's transmission rate and transmission distance, PMD began to be the main obstacle which constrained optical fiber communication system upgrade and further development. PMD is a random value and difficult to calculate and test in the actual optical fiber communication systems. Poincare method is intuitive, easy to understand, easy measurement to study the characteristics of the PMD, and avoid a lot of tedious calculations. In the paper, analysis the single-mode fiber and its PMD, and the polarization state transmission process of polarization maintaining fiber and its nonlinear effects using the Poincare method, and simulate PMD characteristics by using Matlab software. Based on these, introduce the measurement principle of an improved Poincare method. Analysis showed that the Poincare sphere is a unique method in the analysis of fiber-optic polarization state transmission. Poincare method for the study of polarization mode dispersion has become an important direction of today's communications field.
Design and Implementation of Unmanned Vehicle Simulation System
Authors: Chen Chui Xin , Mao Yang Hong
Published: October 2012

The design use the car simulate unmanned vehicles, it take voice identificate and Bluetooth technology to control unmanned vehicles, Through identificate the speech of control person, extract the valid instruction, and send the instructions to car via bluetooth. After the car identificating the command, it can automatically finish the basic functions of start, forward, backward, turn left, turn right, accelerate, decelerate, stop, turn on the lights, turn off the lights automatically avoid obstacles and tracing. The car model also install LCD, four infrared sensors and long-range ultrasonic ranging sensors, it have good scalability, the model have a good reference value for the real unmanned vehicle.
The Predigest Project of Vehicle-Bone Multimedia Transmission and Control Network Based on FPGA
Authors: Li Hong , Hou Qiao Zhen
Published: October 2012

The design uses 32 ARM processor S3C44B0X and Spartan™ -3E500 FPGA chip produced by Xinlinx company for setting up the hardware platform, and integrates the camera, GPS module, MiniGUI interface module. And realized bus vehicle mounted multimedia transmission control network control based on MOST. All of these are in the purpose of achieving a Predigest Project of vehicle-bone multimedia transmission and control network based on FPGA. The experiment indicated that, the transmission and control network system constructed by S3C44B0X and Spartan - 3E500 FPGA is low cast, simple and reliable.
Key Points of Human Body Location Based on Single Depth Map
Authors: Hu Hai , Li Bin , Huang Ben Xiong , He Xiao Lei
Published: October 2012

This paper presents a method of using single depth map to locate the key points of frontal human body. Human motion capture is the premise of motion analysis and understanding, and it has widely application prospects. There are many problems on former way to capture the state of human motion. For example, it can’t initialize automatically, it can not recover from tracking failure, it can not solve the problem caused by occlusion, or there are many constraints on participant, and so on. This article uses Kinect, which from Microsoft, to get depth maps, and use a single map as input to locate the key points of human body. First, depth map can reflect the distance, so background segmentation can be done easily by the characteristic. Then, extract the skeleton of the body’s silhouette. Finally, using the inherent connectivity features of human body, the key points of the body can be determined on the skeleton. Locating the key points from single depth map solve the problem of automatic initialization and recovery directly. The depth map can reflect distance on grayscale, which makes it easy to split the body region from the background. In addition, depth map contains some useful information can be used to solve the problem of occlusion. Using depth map can remove some constraints on the human body, as well as to reduce the influence of clothing and surround lighting, and so on. The experiment shows that this method is very accurate in locating the key points of frontal stand human body, and can solve some problems of occlusion. It is ideal used in a motion tracking system for automatic initialization and self-recovery when tracking failed
Study on the Application of Rotary Drilling Pile Construction in Expansion Project of Railway Station
Authors: Lu Zhong Le , Wu Li , Zuo Qing Jun
Published: October 2012

Wuchang railway station expansion project was of a urgent construction period, requiring the high level of environmental protection and good quality. And to so large number of foundation engineering, the application of rotary drilling pile construction method could save time, reduce environmental pollution, and was suitable for silt, clay, sand and gravel strata. Through the engineering examples, the construction produces including scheme and technologies are introduced, and production and installation of steel casing, slurry pools and production, borehole-creating, production and hoisting of cages, concrete grouting and inspection key points are discussed in detail. The practice shows that rotary drilling pile construction method has a good overall efficiency in the expansion project of railway station.
Engineering Application of Detections on Backfill Compactness
Authors: Zhang Shi Min , Zhang Lei
Published: October 2012

This thesis introduces the contents of backfill compactness and the detection method. And it also introduces the effects of backfill compactness in engineering: it is an important basis to judge the reliability and stability of backfill foundation. In addition, it takes the maximum dry density detection of on-site backfill and the compacted backfill compactness detection of foundation at Linan contrustion site of Hangzhou Hangyang Heat Exchange Equipment Co., Ltd. for example to specify the engineering application of detections of backfill compactness. At last it puts forward problems existing in the engineering detection on compacted backfill compactness: the variance of the actual maximum dry density and maximum dry density achieved by indoor compaction experiment. And it also provides a corresponding solution called the correction for maximum dry density in sieved gravel soil.
Study on Common Problem and the Design of Granary Railway Canopy
Authors: Liu Qi Xia , Zhao Yang
Published: October 2012

The railway canopy and mechanical canopy in the granary are large span special structure industrial architecture, has the design standard uncertainty, influence factor multiplicity, construction craft complexity questions and so on in the design and the construction. On the basis of obtaining the characteristics of granary railroad canopy, the design methods of roof, column and foundation for granary railway canopy are described, the defects of stability theory are analyzed, and the reasons of instability is summarized in this paper. The results will has good reference to similar projects in the future.
Nonlinear Buckling Behaviour of Imperfect Cylindrical Shells under Global Bending in the Elastic-Plastic Range
Authors: Chen Lei , Peng Yi Liang , Wan Li
Published: October 2012

Many thin cylindrical shells are used in structural applications in which the dominant loading condition is global bending. Key examples include chimneys, tubular piles, wind generation towers and tall silos. Their thickness lies in a tricky range which is extremely thin for the structural tube community and very thick for the shell buckling community. The buckling strength of these structures is dominated by extensive plasticity, but the fully plastic state is usually far from being attained. This paper explores the buckling strength of imperfect thin cylindrical shells under global bending in the elastic-plastic range. The capacity curves of the new Eurocode EN 1993-1-6 (2007) are used to match the final results. The results show that the capacity curves can capture this buckling behavior accurately and safely for different types of material models. It is assumed that the shell is held circular by rings or boundaries at reasonable intervals, effectively restraining ovalisation. It is hoped that these results will make a useful contribution towards resolving the misunderstandings and controversy that has been evident in this field in recent years.
Dynamic Analysis and Optimization Design on Storage Silo of Concrete Mixing Plant
Authors: Zhou Xin Xiang , Tang Yan Ling , Liu Cheng , Hu Guang Yu
Published: October 2012

This paper takes the under-frame of 300t storage silo produced by a certain company as the main research subject, modal analysis on the under-frame is made by three-dimension finite element method to obtain the basic natural vibration period,modal parameters and the distribution characteristics of the overall stiffness.The best optimal design can be got through the optimization design of the under-frame.All of the above provide a reliable reference for the design of storage silo.
The Connection Technology between Steel Structure and Wooden Antiqued Components
Authors: Wang Kun , Lei Hong Gang
Published: October 2012

Sheli Tower in Jing chuan county is a steel frame system, whose connected construction between steel components and antiqued components is very complex. Considering the construction difficulties of Sheli Tower,this paper introduces how to fix the wooden brackets by using welding screw and steel sheet that connected with the columns and the method of packaging the steel eaves purlins into cornice with wooden antiqued components.These solutions ensure the union of force and architectural form, accurately comply with the architecture of Tang style.
Statistical Analyses of Steel Frame Structure Drift Angle
Authors: Xia Huan Huan , Liu Wen Feng , Gao Yan Qiang
Published: October 2012

Story drift angle is one of the main indexes to test the seismic performance of building structures. American seismic code of buildings FEMA273/274 respectively provide the limit values of story drift angle in two kinds structural systems, steel frame and steel-support frame. This article collects 40 groups steel frame test data and 24 groups steel-support frame test data. By the statistical analyses of story drift angle and the comparison to the drift angle limit values in different countries, the seismic performance levels of steel frame structure are divided into six,Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴand Ⅵ, and the suggested limit values of story drift angle corresponding with performance levels are given.
Experimental Research and Finite Element Analysis on the Bonding Behavior of CFRP-Concrete Interface
Authors: Peng Hui , Yu Shu Yu , Cai Chun Sheng , Liu Wei Wei
Published: October 2012

The bonding behavior of CFRP-concrete interface has important influence on the mechanical behavior and the failure mode of the strengthened structure. In this paper, a total of 4 specimens strengthened with CFRP plate were prepared and the double-shear tests were conducted to investigate the mechanical behavior and the failure mode of the CFRP-concrete bonding. During the tests, the on the ultimate bearing capacity and the distribution of the CFRP strains were measured and the influence of bonding lengths and thickness of the epoxy were discussed. According to the test results, the distribution of the CFRP strain along the bonding length shows an exponential decreasing law, and the strain in the vicinity of the loading position was much greater than that at the ends. Based on the test data, the finite element model of the specimens was developed, by using the orthotropic spring elements to simulate the adhesive layer with ANSYS software. The comparison of the analytical results and the experimental results indicates that both results have shown a good agreement.
Hysteretic Property Analysis of the Different Ribbed Steel Deep Beams
Authors: Yuan Xiao Sa , Zheng Hong , Xi Xue Tao
Published: October 2012

The steel deep beam infilled steel frame is a new type of lateral resisting system. It can realize the modulation of structural stiffness in a certain range. By utilizing ANSYS software, hysteretic property of the different ribbed steel deep beams was carried out. The result shows that primary stiffness, yield load and ultimate capacity of the ribbed steel deep beams can be effectively improved. The hysteretic loops are replete, which means better energy dissipation capacity.
Numerical Simulation of Vertical Ground Stress Distribution along Fault Trend Direction in a Metal Mine
Authors: Wang You Xi , Deng Guang Zhe
Published: October 2012

The fault breaks continuous ground stress distribution. The rock mass in fault zone is weak and broken, it becomes stress decreasing zone. The paper, which is combined with engineering practice and rock mechanics test, numerically simulates geological environment of fault zones and analyzes faults trend direction influence on ground stress distribution in the metal mine. The results demonstrates that deep faults breaks down the continuity of ground stress distribution, principle stresses in lower wall of faults are smaller than it in hanging wall while high deep ground stresses are in cross district of hanging-wall of fault-zone and ore bed
Torque Calculation of Crossing Cantilever Beams with Equal Spans
Authors: Li Yuan , Lv Wei Rong , Luo Wen
Published: October 2012

In practical engineering design, torque is always ignored for the design of the crossing cantilever beams with equal spans, so that its safety reliability is reduced. Based on the theory of restraint moment, this paper deduces the simplified formula on the restrain moment generated among the crossing cantilever beams. At the same time, the application conditions of calculation formulae of the crossing cantilever beams with approximate equal spans are suggestively given. By the contrast analysis, the influence factors of torque are proposed in conception design and it is proved that the formula can be used in engineering design.
The Structural Static Analysis of Multi-Grooves Rectangular Aqueduct
Authors: Ji Ri Chen , Xu Tao , Yan Juan
Published: October 2012

Based on the structure and mechanical characteristics of large-sized multi-grooves rectangular aqueduct, the author deduced the calculation formulas of transverse elastic reaction force of double-body and three-body aqueducts with the conditions of elastic supporting by using the force principle in the method of structural mechanics; meanwhile, used 3D Finite Element Method to model and analyze the aqueduct; and contrasted the two calculated results to prove the accuracy of the obtained formulas. The conclusions show that calculating aqueducts with the formulas can meet the precision requirements of engineering design. It provides a simple and quick method for the design and construction in practice.
Effect of Slab Quality on the Microstructure and Performance of Q345C Hot Rolling Strip Used for Pipe Pile Foundation
Authors: Luo Hai He , Zou De Hui , Wang Zhi Fen , Dong Han Xiong , Dong Zhong Bo
Published: October 2012

The Effect of slab quality on the microstructure and performance of Q345C hot rolling strip for pipe pile foundation were studied by SEM, EBSD, mechanical test and corrosion test. The results showed that the dendrite size of the slab had a great impact on the grain size of the steel. The fine grain structure can significantly improve the mechanical properties of the steel, but to some extent, reduce its corrosion resistance. In the early and later stage of the corrosion reaction, the coarse grain structure can improve the corrosion resistance. However, in the middle stage of the corrosion reaction, the grain size had no significant effect on the corrosion resistance. The rust layer included the inner layer and the outer layer, in which the inner layer was relatively compact, and they were mainly composed of the oxide of iron.
Numerical Simulation on the Overall Dynamic Response of One High-Rise Steel Frame
Authors: Chen Dai Guo , Yao Yong , Wang Hai Jun , Deng Yong Jun , Zhou Jing
Published: October 2012

Using the finite element analysis software ANSYS to analyze the overall dynamic response of one specific high-rise steel-frame,including modal analysis, spectrum analysis and time-history analysis. Then do a comparative analysis with the results of calculation by the professional software PKPM. As the results: the structural calculation can use layer model; Larger mutations appeared in the stress of weak-story and the relevant story need to reinforce or set up supports under the anti-seismic design in the elastic time-history analysis of structure; Y-direction translation is preferentially happened in first order modal shape and lateral-torsional coupling happened in third order modal shape among the vibration mode analysis; The response spectrum analysis of frequent earthquake show that seismic action is more serious in ground layer.
Method of the Snow Load for Design of the Low Rise Roof Structures in the Different Country Codes
Authors: Li Fang Hui , Gu Ming , Ni Zhen Hua , Shen Shi Zhao
Published: October 2012

Snow load is very important for the design of the large span roof structures in the cold region. The determine of the snow loads are influenced by many factors, such as wind, shape of the roof , terrain categories and so on, therefore comprehensive consideration of the transport and drift by the strong wind for design of the roof is very complex. Compared with other countries load codes, the China load code don’t detailed consider wind and snow interaction effect, the method of snow load for design has some further improved terms.
The Influence on Horizontal Ties of Steel Coupling Beams
Authors: Kim Sun Woong , Park Wan Shin , Eom Nam Young , Yun Hyun Do
Published: October 2012

Hybrid coupled shear wall system with steel coupling beams has known as the effective lateral load resisting system for tall buildings subjected to earthquake. This paper addresses the influence on horizontal ties of steel coupling beams in pseudo strain hardening cementitious composite (PSH2C) hybrid coupled shear wall. Test variables included the connection detail and types of material, concrete and PSH2C, in the connection region. The results show that Specimen PSH2C-SB and PSH2C-SBVRT exhibits a better stable behavior than Specimens HCWS-SB and HCWS-SBVRT.
The Coupled Thermo-Hydro-Mechanical Behavior of Saturated Fractured Solids
Authors: Guo Shao Hua
Published: October 2012

The stress equilibrium equation of anisotropic solids, coupled to the hydrodynamic seepage equation and heat transfer equation of saturated fractured rocks, are studied here based on the standard space of physical presentation, in which an new thermo-hydro-elastic model is induced. A set of uncoupled equation of heat and hydraulic propagations in anisotropic saturated fractured rocks is deduced. From them, two new phenomena of heat and hydraulic propagation are obtained, which are affected by both anisotropic subspaces of solids and thermo-mechanical and hydro-mechanical coupling coefficients. Based on these laws, we discuss the heat and hydraulic wave behaviour for isotropic solids.
Interval Finite Element Analysis and Sensitivity Study of Engineering Structure
Authors: Liu Shi Jun , Duan Wen Feng , Wang Hong Chun
Published: October 2012

Abstract: The material parameters and the load are considered interval uncertainty and regarded as interval variables in this paper. The interval finite element analysis model is established for engineering structures. The interval parameter perturbation method and endpoint combination method based on monotonic are used to calculate deformation range. Sensitivity on the material parameters and load is studied.as an example for truss structure, the conclusion is more reasonable and applicable.