bluuebunny/crossref_metadata_2025 huggingface dataset:
Characteristic Finite Strip Analysis of Sheet Materials on Multi-Intelligence Agents
Authors: Zhang Jun Cai , Chen Qing Guo
Published: March 2013

Spline finite strip is the common theoretical analysis method to sheet materials. On the mechanism of cold forming, using spline finite strip theory, characteristic line connection and characteristic finite strip are to build on the reasonableness. Ignored a number of uncertainties, avoided "massive" data, this model simplifies the boundary conditions, improving the system agility. The qualitative factors which are difficult to establish mathematical expression in forming, and the constraint conditions to form model, were tranformed into information description. Combing with specialist experience, solving task system of multi-Agent was established. Then, the dynamic task can be solved by intelligent Agent. This work can provide theoretical guidance for research to sheet materials forming.
Optimum Design of the Support System of the SiC Primary Mirror with 1m Aperture
Authors: Sun Ning , Zhuo Ren Shan , Cong Jun Feng
Published: March 2013

The support system of the one-meter SiC primary mirror was optimum designed by the finite element method. For the analysis, the 3D solid finite element model was used by the finite element software. The axial support-ring radius and the lateral support position were determined after the optimum design. The mirror deformations with different pitching angles were calculated. The maximum value of the surface figure deformation root-mean-square (RMS) is 23.84nm, which satisfies the requirement and shows the support system is reasonable and feasible.
Feasibility Study of Nanomaterial Level Powder Preparation by Wet Ball Milling and the Performance Analysis of Ceramics
Authors: Zhang Gui Fang , Cao Ming He , Hao Hua , Liu Han Xing
Published: March 2013

The purpose of this paper is to study the feasibility of nano-material (1~100nm) level powder preparation by wet ball milling. The powder was used to prepare the ceramic and the performance of the ceramic was analyzed. The experimental results show that the average particle size of the powder is close to nano-material level (around 120nm) and the ceramic possess high compactness, high dielectric constant and low dielectric loss.
Remote Monitoring Technologies of Performances of Battery Charger in Digitalized Transformer Substation
Authors: Li Pei Ying , Pan Yu Tian , Ma Yan Qiang
Published: March 2013

In the DC power system of the unwatched transformer substation, the battery charger is one of the key devices. The stability of its performances directly affect the stability of DC power system. In the paper, using the computer technologies and the real-time Ethernet technology to communicate with the battery charger monitor to achieve remote monitoring technology of the performances of the battery charger. It can not only remote monitor the operations and fault states of the battery charger on line, but also remote sensing the ripple factor and the stabilized voltage precision when the battery charger is under the states of the floating charge and the constant voltage equalizing charge, at the same time remote sensing the stabilized current precisions when the battery charger is under the stage of constant current equalizing charge, and the characteristics of equalizing current when the battery charger is in operation. So the remote monitoring technology of the performances of the battery charger is very important in the transformer substation.
Study of Fault Transient Detection Method Based on Chaotic Neural Network
Authors: Li Shang Yuang
Published: March 2013

In order to make the best of abundant fault transient information, a neural network fault detecting method based on transient information is proposed. Firstly, a appropriate orthogonal wavelets packet function is chosen in order to effectively distill fault transient information; and then a chaotic neural network is employed to detect SPGFs, by which the interference of false and non- fault transient information is overcome, its weight coefficient and parameters are optimized by improved genetic algorithm; Finally, a numerical type of fault detecting criterion is designed. Effectiveness and advantage of the proposed method is tested by several experiments.
Based on Large Public Building Energy Monitoring System of Things
Authors: Song Jin Bo , Zeng Zhou Yu
Published: March 2013

The existing energy use for real-time monitoring, to the statistical data of system analysis, main factors determining energy consumption, through the computer, mobile phone, PDA and other port monitoring display. According to the specific energy consumption situation in the development of targeted energy-saving plan, adopt infrared intelligent switch, air conditioning control, efficient lighting, infrared remote sensing switches and other measures to achieve energy-saving emission reduction demonstration effect.
A New Capacitive Sensing System for Roundness Measurement
Authors: Ma Yu Zhen , Wang Xin Hua , Li Hong Min , Dong Xiao , Kang Yan Hui
Published: March 2013

A capacitive sensing system for measuring spindle roundness was proposed in this paper, it was different with the past method using inductive sensors and laser displacement sensors. Three capacitive displacement probes were installed circularly on the measured shaft, because of capacitive sensor with average effect in two electrode plates, it is able to overcome the affect of microscopic factors. while the shaft was rotating with a certain speed, the probes measured the shaft’s profile in non-contact mode simultaneously, then through linear combination for three output signals, the spindle error of the rotating shaft was eliminated, and the roundness error was effectively separated from the measurement results. The experiment results have verified the effectiveness of roundness error measuring system based on mutiple capacitive probes, this capacitive sensing system can be used for rotating shaft roundness measurement.
Implementation of an Intelligent Telephone Dialing System Based on the Control of Steady-State Visual Evoked Potentials
Authors: Wei Qing Guo , Wang Zhuo , Lu Zong Wu
Published: March 2013

With the development of brain-computer interface (BCI) technology, researchers are now attempting to put current BCI techniques into practical applications. This paper proposes an intelligent telephone dialing system controlled by a steady-state visual evoked potential (SSVEP) based BCI. This dialing system consists of four parts: a visual stimulator, EEG signal acquisition and amplification, PC real-time processing system and an auto telephone dialing module. Seven volunteers participated in an experiment designed to test the performance of the dialing system. The experimental results suggested that all subjects succeeded in the phone dialing with mean accuracy rate of 94.5% and mean bit rate of 33.31 bit/min.
Servo Control of Thrust Position for 6DOF Magnetic Suspension Stage
Authors: Qu Yong Yin , Zhou Zhen Xiong
Published: March 2013

A novel 6DOF magnetic suspension stage is studied in this paper, the magnetic suspension stage system includes a suspension system and a thrust servo system, and this paper only studies the thrust system. The thrust system is a nonlinear, multivariable, and strong coupling system. For achieving its precise servo control, we used the auto-disturbance rejection controller to observe the inner and outside disturbance, and to offset the system. The result of simulation and experiment shows that the control scheme applied in the thrust control system has better dynamic, static, and robust characteristics.
Design of Information Acquisition and Transmission System Based on Arm for Disaster Rescue
Authors: Xiang Wei
Published: March 2013

The occurrence of disasters is inevitable. To facilitate the rescue effectively, rescuers need to clearly understand the situation of a disaster site. This paper presents a design scheme of embedded information acquisition and transmission system for disaster rescue based on ARM processor (S3C2440), which is able to collect and transfer video, audio information and even vital sign of the survivors amongst the ruins. In this system, ARM processor which acts as the central data acquisition system is used as the control system that manages the acquisition and transmission devices connected to it. It has the characteristics of rapidity, real-time, portability, high accuracy etc.
A Vehicle License Plate Location Method Based on the Mixed Programming between VC++ and Matlab
Authors: Liu Bo Liang , Sun Ning , Chen Zhu Xiu
Published: March 2013

The location of vehicle license plate is the important component of realization intelligent traffic system.While programming locaton of car license plate.Visual C++ language,a software development platform,is widely used.Matlab Compiler language is simple and easy to use and has strong ability of Graphics processing. Accordingly ,This paper presents a new method based on the Visual C++ and Matlab mixed programming of image processing,Image processing for vehicle license plate. And introduced the way to achieve application of this method in the image processing.Experimental evidence,this method has great application value.
Research on Characterization Methods of Nano Dimension Standards
Authors: Li Yuan , Wu Jun Jie , Lei Li Hua , Fan Guo Fang , Fu Yun Xia
Published: March 2013

This paper develops one method to characterize nano dimension standards using Scanning White Light Interference Sensor (SWLIS) based on Nano Measurement Machine (NMM). The experimental results show the average value of SHS8-440 low step height standard is 44.15 nm and SHS8-100.0 high step height standard is 100.29 μm, with a standard deviation of 0.30 nm and 0.03 μm, respectively. Also, SWLIS is performed to measure and characterize step height standards, which cover most of the conventional step height standards produced by VLSI Standards Incorporated (VLSI). Additionally, atomic force microscope (AFM) is used as a beneficial supplement due to low lateral resolution of optical methods. The average value of TGZ1_PTB 1D grating from NT-MDT Company is 3000.2 nm with a standard deviation of 0.3 nm by AFM.
A Scientific Computing Resource Sharing Management in Internet-Oriented Environment
Authors: Han Jun , Zhang Shu Fang
Published: March 2013

In this paper, we introduced a scientific computing environment for Internet-Oriented computing resource sharing, abbreviate ISCEs, which is a high-performance computing environment that allows users to write and evaluate parallel distributed applications for different hardware and software configurations using a web interface. We described the software architecture of ISCEs by emphasizing Application editor, Application Scheduling Components, and Application execution/runtime modules. ISCEs is efficient which is strongly supported by the time measurement scheduling polices, it has the advantage of convenient scientific activity, task-oriented scheduling algorithm prediction, scalability, efficiency.
Research on Encryption Algorithm Based on Delayed Chaotic Neural Network
Authors: Luo Li , Liu Feng , Liu Jin Zhou
Published: March 2013

According to analysis and research on the time-delay neural network password algorithm, the paper points out that the encryption algorithm based on time-delay chaotic neural network is vulnerable. Attackers can decrypt partial plaintext without knowing any network parameters. Therefore suggesting that adopting different keys when plaintext encrypted every time, or using group link model similar to the block cipher to resist known plaintext attack.
Ontology-Based Context Modeling for Mobile Catering Recommendation
Authors: Ai Dan Xiang , Zuo Hui , Yang Jun
Published: March 2013

To support context-aware mobile recommendation, an ontology-based context modeling approach was proposed. We analyzed the framework of the mobile recommender system based on contextual model and suggested designing the model with two-layer structure including an upper ontology layer and a domain ontology layer. The ontologies provides formalizations representing the main entities, including users, objects, contexts, and their interactive relationships in mobile recommendation environments. A specific context ontology model for catering recommendation was developed and a use case of the instantiated context ontology was demonstrated.
Job Scheduling Algorithm for Cloud Computing Based on Particle Swarm Optimization
Authors: Liu Jing , Luo Xing Guo , Zhang Xing Ming , Zhang Fan
Published: March 2013

Cloud computing is an emerging high performance computing environment with a large scale, heterogeneous collection of autonomous systems and flexible computational architecture. The performance of the scheduling system influences the cost benefit of this computing paradigm. To reduce the energy consumption and improve the profit, a job scheduling model based on the particle swarm optimization(PSO) algorithm is established for cloud computing. Based on open source cloud computing simulation platform CloudSim, compared to GA and random scheduling algorithms, the results show that the proposed algorithm can obtain a better solution concerning the energy cost and profit.
Semantic Representation of Flatness Based on ALC(R) and Mathematical Definition
Authors: Xie Yun Feng , Du Yu Lu , Zhong Yan Ru , Qin Yu Chu
Published: March 2013

The information of form tolerances in existing 3D CAD systems is just a kind of symbol and text which is lack of engineering semantic at present. Therefore, a reasonable explanation and Semantic representation of form tolerances has very important significance. In order to reduce the uncertainty and support the semantic interoperability in tolerance specification design, an approach for mathematical representation of flatness based on the Small Displacement Torsor (SDT) is proposed. Based on this, a representation of flatness using description logical language ALC(R) with concrete domain is proposed. Then flatness information is formalized using OWL, an ontology representation language devised by W3C, to be shared and interoperated between heterogeneous systems by building OWL ontology. At last, there is a practical example to verify the feasibility of this approach.
The Comprehensive Economic Benefits Evaluation of Power Generation Projects under the Background of Low-Carbon Economy
Authors: Li Chao , Ye Cai Qin , Mou Lan
Published: March 2013

Under the background of low-carbon economy, it is necessary to modify and improve the existing economic benefits evaluation system for the construction projects of power generation industries. This paper firstly built an economic benefit evaluation index system for power generation projects based on low-carbon financial benefits and carbon-emission reduction efficiency. Then, it established an economic benefits evaluation model which uses entropy and AHP to determine combined weights, and Gray Relation Method for comprehensive evaluation. Finally, the empirical analysis of the construction of wind power projects verified the feasibility and effectiveness of the evaluation model.
The Research of Reduction Characteristics of Fe(III) Dissimilated by Different Activated Sludge
Authors: Li Jie , Zhai Si Yuan , Wang Ya E , Feng Juan Juan , Zhao Li
Published: March 2013

The effect of reduction characteristics of microbe dissimilating of Fe(III) under different activated sludge, carbon source and anoxic/anaerobic condition was studied by activated sludge as inoculum under laboratory condition. The results showed that the maximum accumulation of Fe(Ⅱ) and the reduction rate of Fe(III) inoculated by biological iron mud were higher than that inoculated by conventional activated sludge. The reduction characteristics of Fe(III) was better in nutrient solution as carbon source than that in sewage as carbon source when inoculated biological iron mud. But the reduction characteristics of Fe(III) was better in sewage as carbon source than that in nutrient solution as carbon source when inoculated conventional activated sludge. From the whole test, the reduction characteristics of dissimilating Fe(III) microbe under anaerobic condition were better than that under anoxic condition.
Development of the Thermoluminescence Dosimetry Measure and Control System
Authors: Wang Xiao Ning , Ning Jing , Fan Xiao Wei , Zhang Chen , Huang Xiao Sheng , Huang Ying
Published: March 2013

Briefly introduces the detection principle, characteristic and method of thermoluminescence dosimetry, and designs a set of data acquisition and processing system for thermoluminescence dosimeter reader. The device’s peripheral hardware circuit design is simple and scalable. This system can be applied to a variety of thermoluminescence dosimetry testing equipment.
Construct the Monitoring Analysis System of the Coastal Power Station Discharge Water Based on GIS
Authors: Wei Chao , Guo Zhong Yang , Ye Shu Feng , Guo Jing Shan , Lin Yuan
Published: March 2013

While the development of social economy in the coastal areas, the demand of electricity is rising up and the construction of coastal power station is accelerating, but the discharge water is increasingly serious damage to the coastal sea. This paper introduces the system framework and the main function, which is based on GIS to monitor and evaluate the discharge water of power station, and divide the damage rank by using RS, monitoring analysis and discharge standard, so that we can calculate the compensation total value by using ecological compensating technology and draft the management program of the power station. The system can achieve the auto management of the power station, which can assure the normal working of power station and the health of eco-environment to balance the development of the economy and the eco-system.
Seasonal Transport Characteristics of Suspended Particulate Organic Carbon in the Middle and Lower Yangtze River and the Relationship with Three Georges Reservoir
Authors: Liu Xiao Li , Yang Shou Ye , Huang Wen Rui , Li Lin Lu , Zeng Chen , Hu Xin Yu , Teng Fei
Published: March 2013

The suspended matter samples collected about 2 times every month in Datong of Yangtze River from May to November 2010 were used for determination of grain size and particulate organic carbon (POC) component. The results indicated that the size composition and organic carbon concentrations of Datong showed obvious seasonal characteristics. The median grain size of the suspended particulate matter ranged from 5.8 to 7.8Φ, decreased in summer (July to September) and increased in autumn (October to November). The POC% of the suspended particulate matter ranged from 0.87% to 1.18%, and was lower in summer, because high sediment discharge had dilution effect for organic carbon. The increase of the turbidity of water reduced the production capacity, and the organic matter correspondingly decreased. POC% decreased with the reduction of median grain size, which suggested that organic matter into the river in summer is mainly organic debris, but not mainly absorbed by the fine particles of clay. CaCO3 content ranged 3.7% to 7.6% and was higher in summer, which reflected the increased source contribution of the upper stream. It decreased in autumn, which reflected the increased source contribution of the middle and lower stream. Since the impoundment of the Three Gorges Reservoir, POC% in Datong were significantly higher than before, which showed the rise of fine particulate matter component and its stronger adsorption of organic matter. The Three Gorges Dam had significant influence on the grain size and organic composition of suspended matter of theYangtze River into the sea. Its potential environmental impact of bio-geochemical effects deserves more research attention.
Frame Structure the Design of Stair Analysis
Authors: Wang Yu Bing , Ma Fu
Published: March 2013

This paper frame structure stair design problem, the stair to participate in overall structure calculation and setting sliding connection are discussed.
An Overview of the Research Methods of Concrete Strength at early Age
Authors: Zhu Gui Wei
Published: March 2013

Rich achievements have been gained on the problem of early age concrete. The application of concrete maturity is widely used in engineering to describe the strength of early age concrete. This paper presents the concept of maturity, research results of concrete maturity by scholars from both domestic and foreign areas, its development history, and method applicable scope of it. Degree of hydration method is also mentioned to make comparisons with maturity method. Both are recognized as valid tools to describe the strength behavior of early age concrete.
Evidence Theory for Uncertainty Quantification of Portal Frames with Semi-Rigid Connections
Authors: Tang He Sheng , Wang Jiao , Su Yu , Xue Song Tao
Published: March 2013

The buckling load or the equivalent buckling length factor of the portal frame structures is greatly influenced by stiffness of bracing elements and semi-rigid connections. In engineering the problem parameters (geometrical, material, strength, and manufacturing) are given or considered with uncertainties. The initial rotation stiffness uncertainties are taken into consideration. A differential evolution-based computational strategy for the representation of epistemic uncertainty in a system with evidence theory is developed. An uncertainty quantification analysis for the buckling load of portal frames with semi-rigid connections is presented herein to demonstrate accuracy and efficiency of the proposed method.
A Novel Segmentation Method of Roads and Slopes for Collapse Recognition
Authors: Yan Zong Ling , Jia Yuan Yuan , He Zhong Shi
Published: March 2013

Color image processing is seldom used in the recognition of roads and slopes collapse. And the application can bring great advantages to the traffic safety. Color image segmentation is the first and key step of the recognition system. By analyzing existing methods of color image segmentation, several drawbacks have been discovered. This paper proposed a novel and efficient segmentation approach which is suitable for the recognition of collapse. The Region of Interests (ROIs), i.e. the roads and slopes, was obtained with the ingenious use of the images characters. According to combine K-means clustering with region merging, connected-component algorithm and close operation, the roads and slopes are segmented with the statistical color features, geometrical features and the location of the objects. Experimental result shows feasibility and efficiency of the proposed approach.
Coordination Countermeasures of Overall Urban Planning and Land Utilization Planning
Authors: Hao Yong Gang , Li Jing Rui
Published: March 2013

The basic principle of coordination between overall urban planning and land utilization planning includes four factors, scientific development, regional development, environmental Protection and farmland Protection. Coordination countermeasures of overall urban planning and land utilization planning is put forward in two aspects, planning legal system and management system. Formulating Regional Planning Law and Emphasizing the Legal Status of Regional Planning are good measures in planning legal system. Reinforcing communication and cooperation between each department and establishing planning committee is a good approach in solving the current coordination of the two planning.
Mechanical Analysis of the Anchorage Zone of Pylon for Xinjiang Cable-Stayed Bridge Based on Refined Finite Element Model
Authors: Zhu Liang Dong , Bai Zhi Zhou , Chen De Wei
Published: March 2013

The Pylon of Xinjiang Cable-Stayed Bridge has a special geometric form, of which the anchorage zone adopts the steel-concrete composite structure with built-in steel anchorage box. To investigate the mechanical behavior, the refined 3D finite element model has been established with the shear nails of steel anchorage box simulated. The stress conditions of steel anchorage box and concrete under prestressing bar and stayed cable forces have been then studied. The bearing proportion at the anchorage zone for the horizontal component of cable force has been calculated. Results indicate that the overall mechanical performance of the anchorage zone is excel, which can be a reference for designing of similar structure.
Investigation Analysis on Guangzhou Huangbu Village Conservation Plan and Situations after its Implementation
Authors: Qu Han Fei , Zheng Li Peng
Published: March 2013

In a city with rapid urbanization and profound history and culture like Guangzhou, conservation for urban village is facing grim challenges. Taking Guangzhou Huangbu Village as a typical case, the paper is based on site investigation on periods before and after conservation of Guangzhou Huangbu Village by research means of literature collection, onsite investigation, induction and deduction etc. The paper proposes conservation planning under current situations and typical issues after implementation of construction, and analyzes the reasons for the issues in an objective fashion. The study offers good reference to urban village construction in China in the current stage. Huangbu Village is located in the east of Xinyao Town, Haizhu District, Guangzhou. As recorded by literature, ancient Huangbu Village was first built no later than Song Dynasty. With Bazhou Island on the west and Zhujiang Waters on the east, the Village was a natural harbor back in Song Dynasty, and an important port for foreign trade in Ming Dynasty. During the reign of Emperor Kangxi in Qing Dynasty, Guangdong Customs set up nine landing ports, and Huangbu Village is one of them. In the 22nd year of Emperor Qianlong's reign in Qing Dynasty (1757), only one port of Guangdong Customs was retained for trade, Huangbu Port flourished as the most important port for foreign trade at that time, bringing fast economic development for Huangbu Village as well. However after Treaty of Nanjing was signed, five ports were opened for trade, and with the relocation of Huangbu Registration Port, Huangbu Village also experienced a recession, changing from commercial trade based to natural agriculture based economy, and the once-flourishing town has descended to a common village. Today ancient port, fairly complete streets, ancestral temples, former residence of celebrity and other traditional Huangbu residences have been preserved, which are of high historical, art and scientific values. In July 2002, Guangzhou People's Government announced it to be the sixth batch of listed cultural relic site under conservation [1].
On the Planning and Construction of Wetland Park
Authors: Zhang Wan Yi , He Min
Published: March 2013

The paper explains the formation, development process, connotation and characteristics, so as to make it clear that the Wetland Parks are important for the utilization and protection of wetland. The paper also explains in detail the principles, direction and major points of the planning and construction of Wetland Parks. Then finally the writer’s suggestions for the construction of Wetland Park are expressed, and the future of Wetland Park is predicted. More and more widespread concern and attention has been attracted to wetland for its unique and important ecological, social and economic functions. Our country is strengthening the construction of wetland nature reserves, while we actively encourage the local to construct multifunctional Wetland Parks. Wetland Park, cultivates natural assets and expands environmental capacity. It functions in wetland ecosystem services in variety aspects, while it meets the needs of economic development of human society. At the same time, planning and construction of Wetland Parks is the effective and innovative means to create a good urban living environment.
County Town Planning under the Background of Strategic Planning – Taking Longshi Town in Longchang County of Sichuan Province for Example
Authors: Si You
Published: March 2013

Townlet construction is an important part of county town planning. Taking the overall planning and design of Longshi town in Longchang county of Sichuan Province for example, this thesis analyzes the characteristics and opportunities of Longshi town, puts forward corresponding construction strategy and comes up with specific plan of planning and design under the background of Longchang's planning of development strategy .
Modal Analysis on Xiluodu Arch Dam under Fuzzy Stochastic Damage Constitution
Authors: Wang Ya Jun , Wang Jin Ting , Gan Xiao Qing , Dong Zhi Hong
Published: March 2013

Modal analysis is the important study for high dam seismic design. Lanczos algorithm was used here for iterative computation. The material constitution for structure was established based on fuzzy-stochastic damage mechanics. The result shows that the typical character of Xiludou super arch dam is the unsymmetrical modal shape.
The Impact of Stairs on the Aseismic Properties of the Structure
Authors: Sun Yang , Xiong Feng , Zhu Rong Jie
Published: March 2013

The stair is a important structural component. In current design modeling, it is cut from the entire structure as a simple beam. But stairs show serious damages in some earthquake events. It implies that the seismic capacities of stair structures could be not enough when designed as current method. To investigate the seismic behavior and the effect on the structures for the stairs, a 5-story school building is selected as a case. Two structure models are established, including and without stair. First the reinforcement inside the stairs are compared. It shows the current simple method underestimate the loadings. Second the changes in the structure are investigated when adding the stair to the structural model. The stair's participation decreases the vibration period and storey drift, and increases the structural base shear and the internal forces of the members surrounding the stair. So, it is necessary to consider the stair in analyzing models.
Probability Model of the Compressive Strength of Bricks Based on the Bayesian Inference
Authors: Gao Yang , Peng Bin , Wang Chao , Gu Rong Liu
Published: March 2013

The compressive strength of bricks used in masonry structures is difficult to deterministically evaluate because of its uncertain nature. It is realistic to model the strength in a probability manner. Compressive tests for bricks were conducted, and then a probability model of the strength was proposed through the Bayesian inference and based on the test results. The model appropriately represented the uncertainty inherent in the brick strength, and can be used to draw characteristic strength values for structural design or assessment.
Measures for the Village Construction and Sustainable Development of Environment: Take the Planning of Beiwu Village Shanhaiguan District as an Example
Authors: Yang Ling Shu , Wang Ning , Zhao Jing
Published: March 2013

In the current large-scale construction of village planning process, village construction provides better productive, living, ecological conditions for rural areas. However, whether we can balance economic development and sustainable development of environment means whether the benefit of village development can be permanent. This paper clarified how to protect the environment during the process of strengthening village economics and to balance village construction and environment protection so as to achieve the goal of sustainable development. Taking the Beiwu Village planning of Shihe Town Shanhaiguan District Qinhuangdao City as an example, this paper explored the possibility and underlying dynamism of village construction and the sustainable development of environment. Combined with the characters of the natural and economic development of villages and adjusting measures to local conditions, this project optimized the combination of construction and environment as well as rural industries and village landscape, making Beiwu Village into “a paradise for tourists, the homes of farmers, the garden of Shanhaiguan District, the ecological garden of Qinhuangdao city”, which provided a reference for the village construction and the sustainable development of environment.
Drying Characteristics of Graininess Agar under Infrared Ray and its Kinetics Model
Authors: Yang Lei , Ouyang Qian Qian , Li Si Dong
Published: March 2013

In order to look for a low-energy–consumption and high-efficiency drying method, the drying characteristics of agar under infrared ray were studied. The results show that temperature has more obvious influence than granularity on the drying rate of agar. With the increase of temperature, the drying rate increases. The agar granularity does not have a significant influence on the drying rate. Comparisons of different drying models at different temperatures were made through linear regression analysis program. The results show that the drying procedure of agar under infrared ray can accurately be described by the Page model, and the drying rates and moisture contents at different drying stages can also be easily estimated with it.
Formation of Silica Particles by Dc Voltage
Authors: Zhang Li , Sun Bing , Sato Masayuki
Published: March 2013

In the present study, dc high voltage was applied to produce droplets with controlled diameter in wide range. The dc voltage was ranged from 0 to several kV. Water glass was atomized in alcohol solution into diameters of several ten μm, depending on dc voltage applied between nozzle and ground electrode. The atomized water glass droplets were solidified by removing water molecules from the water glass. When the dc voltage was raised, nozzle diameter and electrode distance were decreased, the diameter of silica particles was decreased.
Simulation of Stiffness and Thermal Conductivity of Ordered Metal Microstructure Reinforced Polymer Composite Interposer
Authors: Wang Ming , Cheng Ping , Wang Yan , Wang Hong , Ding Gui Fu
Published: March 2013

An interposer model based on ordered metal microstructure reinforced polymer composite was established using ANSYS software. The shape of metal microstructure includes quadrilateral, hexagon and triangle. The stiffness and thermal conductivity of composite interposer was calculated and discussed. Simulation results show that the stiffness of the metal microstructure-reinforced polymer composite interposer increases with augmenting the volume fraction of metal compared with the pure polymer. For the composite with metal volume fraction of 65%, the stiffness of the triangular composite interposer is 3.12 times that of the pure polymer interposer. The thermal conductivity of the hexagonal model is the best, while the one of quadrilateral and triangular model is similar. For the composite with the metal volume fraction of 65%, the thermal conductivity of the triangular composite interposer is 3.42 times that of the pure polymer interposer. Therefore, metal microstructure can effectively improve the performance of the pure polymer interposer.
Surface Modification of Magnesium Alloy by Bioactive Polymer Composite Coating for Biomedical Applications
Authors: Wang Zhen Lin
Published: March 2013

In recent years, excellent cytocompatability of magnesium alloy in addition to the bioactivity, biodegradation and match of mechanical properties is increasingly indispensable for biomedical applications. Surface modification by single inorganic or polymer coating provides inadequate functionality in reducing corrosion rate and improving cytobiocopatibility, bioactive polymer composite coatings are supposed to draw on multiple merits of individual component materials and may present a new trend to develop Magnesium alloy biomaterials with promising properties. This review focuses on the effects of polymer composite coatings and their preparations through sealing micro pores in inorganic coating, low temperature deposition techniques, biomemitic synthesis as well as controllable bioactive composite coating by virtue of irradiation modification.
Characterization of Various Size ZnO Nanorods Prepared by RF Sputtering and Hydrothermal Method
Authors: Yen Chi Shiuan , Chen Huai Yi , Koo Horng Show , Lai Chiung Hui
Published: March 2013

In this paper, we used RF sputter to deposit the ZnO seed layer of 0.6 μm in thickness, which was then immersed in zinc nitrate hexahydrate [Zn(NO3)2•6H2O] and hexamethylenetetramine (C6H12N4) mixture solution of different concentrations for the growth of ZnO nanorods by hydrothermal method. After annealing at different temperatures, thermal field emission scanning electron microscope (TFSEM) was used to observe the arrangement and growth of ZnO nanorods. We found the concentration of the mixture solution of C6H12N4 and Zn(NO3)2•6H2O would affect the thickness and crystallization of ZnO nanorods, and the annealing temperature would change their columnar arrangement structure. The arrangement structure of the ZnO nanorods grown in the mixture solution of 0.2M concentration had more gaps and pores. Under this condition, we successfully fabricated a dye-sensitized solar cell (DSSC), of which the performance could be further improved by using ZnO nanorods prepared by many different methods.
Environmentally Synthesis of Metallic Oxide Short-Nanorod with Biological Compatibility by Organic Solvent Assisted Annealing Process
Authors: Yang Zao , Liu Quan Hui
Published: March 2013

Metallic oxide ZnO short-nanorod of 33-83 nm in diameters and length up to 0.3um.with biological compatibility are environmentally fabricated by organic solvent-assisted annealing pro- cess. The sample was characterized by X-ray diffraction, field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM). It demonstrates that the obtained ZnO short-nanorods have good crystal quality. A growth mechanism is proposed. This paper establish base for application of Metallic oxide short-nanorod to the area of bioscience in our future work.
Influence of Doping Mn or Ce on the Electrical Properties of PSZT
Authors: Huang Fei , Zheng De Yi , Luo Min
Published: March 2013

Lead strontium zirconate titanate (PSZT) ceramic is as one kind of piezoelectric materials can convert between stress and electric. Because of high performance, low cost of PSZT material, this kind of material are widely researched [2, 3] and used in the areas such as electrical sensors, actuators, alarm equipments etc [1]. As the more widely applications of the PSZT material, improving its piezoelectric properties becomes more important [4]. In this paper, for improving the electrical properties of PSZT material, elements manganese (Mn) or cerium (Ce) is doped into the bulk PSZT material. It has been found that, when the doping amount of MnO2 is 0.15wt%, the electrical properties are improved to: tgδ=0.0095, kp=0.634, d33=611pC/N and ε=2523. When the doping amount of CeO2 is 0.2wt%, the electrical properties are enhanced to: tgδ=0.0168, kp=0.621, d33=585pC/N, ε=3324.
DEM Simulation of Micro-Macro Mechanical Behaviour of Granular Materials
Authors: Chi Lu Lu , Qin Jian Min , Chen Xue Feng
Published: March 2013

The mechanical responses of granular materials are affected significantly by the properties of the individual particle. In order to establish the link between the micro and macro parameters, series of numerical biaxial simulations are carried out using two-dimensional discrete element method. The microscale mechanisms of mechanical behavior of granular materials are investigated through sensitivity analyses. The key influence of microscale parameters on the strength and deformation are discussed respectively. The peak strength depends on void ratio, friction coefficient and confining stress significantly. The elastic modulus is affected by friction coefficient, confining pressure and stiffness ratio, especially when the friction coefficient ranges from 0.1 to 0.3. The samples with different initial void ratio under the same loading condition can finally achieve the same critical state; the critical states at micro and macro scale are both independent of the initial void ratio.
Several Key Issues in the Electric Refitting of Engineering Machinery
Authors: Yang Guo Yong , Gu Kan Feng
Published: March 2013

The position and application of hydraulic system on the engineering machinery are analyzed while the current situation and application of electric technology are discussed. A new idea is proposed in which the end effectors are driven by electric motors while the restriction of hydraulic system is taken over. Several key problems are analyzed during the refitting of engineering machinery such as the high-power, the distribution and focus of energy, the source of energy and the redesign of the control system. The detail is discussed with the Komatsu excavator PC200-8. The advantages of electric engineering machinery are also summarized.
Developing a DSP-Based Control System of Servo Punch Press Using Model-Based Method
Authors: Yi Jian Jun , Luo Fei , Ji Bai Yang , Jiang Hui , Chen Shao Li
Published: March 2013

Servo punch press uses a servo motor to drive. It can set different stroke length and velocity according to different production requirements, and can always ensure the formation precision of the bottom dead center. It has the advantages of high efficiency, high precision and low noise, and it presents the development trend of punch press. The key point of the servo punch press development is its control system. According to the functional requirements and technical performance of the servo punch press, the general approach of the servo punch press material forming control law is discussed in this paper. The development platform based on DSP control system has built up as well. By means of the Simulink and the Target for TI C2000 tools in Matlab, the dynamic model of punch press system and controlling model, including forming model, DSP-based controller model and plant model,etc., have been designed. Base on this, the forming characteristics of different materials, forming control algorithms have been studies through simulation and virtual experiments.The controller algorithm can be transferred automatically to the target controller. This approach can reduce developing time and costs of servo punch press control system and improve developing efficiency.
Study on Total Pressure Losses Characteristics of Rotating Cavity with Radial Inflow of Different Drum Hole Shape
Authors: Ning Bo , Luo Xiang , Feng Ye , Chen Xiao , Wu Li Jun
Published: March 2013

The pressure losses characteristics of the rotating cavity with radial inflow were investigated by testing method. The rotating cavity with oblong and round drum holes inlet and outlet total pressure under different operational state were tested, the influence of non-dimensional mass flow rate and rotating Reynolds number on rotating cavity with a Radial Inflow of different drum holes were analyzed. The results show that total pressure losses of the rotating cavity increases with the rotating Reynolds number and flow coefficient. Structure with oblong drum holes is superior to structure with round drum holes with lower total pressure losses in the range of the ratio of the flow coefficient and the Reynolds number is less than 0.048.And structure with round drum holes is superior to structure with oblong drum holes with lower total pressure losses in the range of the ratio of the flow coefficient and the Reynolds number is less than 0.048.
Effect of Pin-Fin Material on Heat Transfer and Flow Resistance Characteristic of Rectangular Channel
Authors: Deng Hong Wu , Wang Yi Bang , Deng Wei , Sun Hui Min
Published: March 2013

Numerical simulation and experiments study were performed to obtain heat transfer and flow resistance characteristics in a channel with pin-fin arrays of trailing edge. Five models with different pin-fin materials were designed to simulate, which contained the rectangular duct model based on the flow and heat transfer of real blade, and four enlarged models with different pin-fin materials based on the similarity theory. One enlarged model was also experimented on, the simulation results of that model tend to agree with experimental data. The results of simulation show that the heat transfer coefficients of the rectangular channel wall increase with the thermal conductivity of pin-fin. And there is one thermal conductivity coefficient, which is determined by the Biot number of pin-fin, makes the average heat transfer of the enlarged model wall same as the real blade path model.
Spectral Analysis of Acoustic Emission Signals Using NI Systems
Authors: Qin Hong Wu , Li Nian Feng , Li Chun Feng
Published: March 2013

This paper describes a software and hardware analytical complex of spectral characteristics. The analysis complex includes the research of the signals with the ability to create a database for identification. Analysis of the spectral characteristics by using special instruments - spectrum analyzer. Presents the results of the evaluation of scientific and practical significance of the software developed. Spectral data multichannel analyzer spectrum was obtained with DAQ-device National Instruments.
Research of Powder Blasting Based Ona New Type PDMS Mask
Authors: Wang Ya , Zheng Yu , Ding Gui Fu , Zhao Xiao Lin
Published: March 2013

This paper presents an efficient molding technology to fabricate PDMS mask with the help of precision cutting process. At the same time, we have studied the influence of major parameters on the effect of glass erosion rate in powder blasting process. Preliminary results indicate that particledimension and mask opening size can have a decisive influence on the erosion rate. The mask molding technology we have referred can meet the requirement of etching vias through the depth of 500μmglass substrate. Different etching modes can formdifferenthole structures which is suitable for different MEMS devices, enriching elaborate processing technologyfor glass.
Pressure Characteristics of the Air Flow Field of Cyclone
Authors: Huang Chih Hung , Lee Jia Twu
Published: March 2013

The changes in pressure inside the cyclone is a key factor affecting the amount of dust. CFD packages used in this study, with powerful computing features, it's built-in the dynamic fluid dynamics equations, have to know how to self do rational, logical judgments engineering objects. After the attempt of the flow rate and pressure, the experimental simulation results showed: (1) in a fixed wind speed, the vortex rotation was more smoothly, the less amount of fallout; (2) in a fixed wind speed rotating vortex was less smooth, more fallout . (3) the greater the internal pressure, dust kept in the more the amount of air, the less the amount of dust; (4) the internal pressure of the smaller, less dust kept in the air quantity, more fallout. In short, the size of the internal velocity and pressure of the dust collector, was sufficient to affect the important factors of the drop amount of the quantity of dust, and thus determine a dust collector dust of the performance being good or bad.
Foster Strength of Graphic Communications Industry and Make Print the Value Added Media
Authors: Cheng Chang Xian
Published: March 2013

Graphic communications industry has a tradition of more than one thousand years. Not since the invention of movable metal type by Gutenberg in 1450 has the communication landscape been shaken at its foundation as today, when print media face competition from new and novel forms of visual communication. In this paper, the critical analysis and study is made as to why printing has weathered the onslaught of new forms of communication in the past and if, in fact, print media will yet again be able to prevail over radically different methods of dissemi¬nating information. Although printing jobs are still in much need today and printing presses everywhere are keeping busy with a steady influx of orders everyday, people in the graphic communications industry should adapt to the new changes of the internet ages and make fully use of print communications to prevail over different kinds of new media. Printed Electronics and postpress finishing also play key roles in creating new functional print products and adding more value to print media.