bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Cutting Parameters and Interactions on the Depth of Cut in Continuous Mining Operation
Authors: Sun Yong , Li Xing Sheng , Shao Wen
Published: June 2012

During mechanized continuous mining, the depth of cut (DOC) of picks on the drum directly affects the forces exerted on the picks, as well as the forces and torque acting on the drum. Therefore, accurate analysis of DOC of individual picks is needed to optimize the design of the drum and the operation of the continuous mining machine. However, the current existing models cannot meet this need, because they only take into account drum advance speed per revolution and the spirals of picks or the picks per cutting line. In this paper, we attempt to improve the accuracy of DOC calculation by considering drum advance speed per revolution, cutting patterns, the interactions between picks and the profiles of picks. Furthermore, the change of DOC of individual pick in a cutting cycle is also analyzed. The proposed models can help calculate pick forces and drum’s reactive forces more accurately. They also enable those empirical force models which are developed based on the experiments with small DOC to be used for force analysis with larger DOC more accurately.
Research on the Interlayer Stress and Warpage Deformation in FDM
Authors: Peng An Hua
Published: June 2012

Abstracts: Fused deposition modeling (FDM), a representative prototyping technology with no use of toxic materials, has been widely used in offices. The reason of interlayer stress and warpage deformation are analyzed in this paper. Under certain conditions, the calculating formula of interlayer stress and the stress-distributing diagram in cut planes are provided, and the mathematical model for warpage deformation calculation is also established. Besides, the influence of the various process parameters on the deformation, such as the number of deposition layers, scanning line length, chamber temperature, and layer thickness, is quantitatively analyzed with measurements provided to minimize deformation.
The Stress Concentration Effect around the Hole in Flat Plate
Authors: Xie Jian Bin , Fan Jing , Wang Zhi Liang , He Tian Chun
Published: June 2012

Using finite element method, models of different element mesh density for the center hole in flat plate were established according to one actual steel plate with central circular hole. The stress concentration coefficients of these models were calculated by means of numerical method. Then the calculated results were compared with the theoretical solution results of Elastic Mechanics. And it was analyzed subsequently that the influences which were caused by different element mesh density on the stress concentration coefficients around the hole in flat plate. The relationship between the element mesh density and the stress concentration coefficients around the hole in flat plate was proposed finally. Results show that the element mesh density for calculation affects the stress concentration coefficients around the hole in flat plate significantly, but the influence is few when the mesh density increases to a certain extent.
Structural Health Monitoring of Cracked Beam by the Dual Reciprocity Boundary Element Method
Authors: Alaimo Andrea , Milazzo Alberto , Orlando Calogero
Published: June 2012

In this paper a 2D boundary element model is used to characterize the transient response of a piezoelectric based structural health monitoring system for cracked beam. The BE model is written for piezoelectric non-homogeneous problem employing generalized displacements. The dual reciprocity method is used to write the mass matrix in terms of boundary parameters only. The multidomain boundary element technique is implemented to model non-homogeneous and cracked configuration, unilateral interface conditions are also considered to prevent the physical inconsistence of the overlapping between interface nodes belonging to the crack surfaces. To assess the reliability and the effectiveness of the model numerical analyses are carried out on the modal and dynamic response of undamaged beam and results are compared with finite element calculations. Electrical response of piezoelectric sensors are then reported for different crack configurations in comparison with the undamaged case.
Numerical Simulation of Three-Dimensional Molten Pool Temperature Field and Flow Field for Laser Melt Injection Based on Fluent
Authors: Zhao Long Zhi , Wang Zi , Jiang Xin Yan , Zhang Jian , Zhao Ming Juan
Published: June 2012

According to the characteristics of laser melt injection, a numerical model for a simplified 3D transient temperature field in molten pool was established using FLUENT software in this paper. In the model, many factors were considered such as liquid metal turbulence, latent heat of phase transformation and material thermo physical properties depending on temperature. The results show that the model can be developed well by FLUENT software. And the results also show that the driving force of the liquid metal flow mechanism.
Effect of B2O3 Substituted for CaF2 as Fluxing Agent on Melting Temperature of Converter Slag
Authors: Zhang Ting Wang , Wang Hong Ming , Li Gui Rong , Zhang Xun Yin
Published: June 2012

B2O3 is used as fluxing agent of converter slag to substitute for CaF2 so as to reduce fluorine pollution and decrease the melting temperature. Hemisphere method is used to measure the melting temperature of samples. Effect of ω(CaO)/ω(SiO2), content of Fe2O3 and content of B2O3(CaF2) on the melting temperature of CaO-SiO2-F2O3-B2O3(CaF2) system have been studied. Results indicate that the melting temperature of samples are decreased when B2O3 substitute for CaF2 equally with equal ω(CaO)/ω(SiO2) and content of Fe2O3 [ω(CaO)/ω(SiO2)=1.5~5.0, Fe2O3=0~30%], the melting temperature of samples are decreased remarkably with the increase of content of B2O3 [ω(CaO)/ω(SiO2)= 2.5].
In Situ Determination of Nitrate in Deep Sea by UV Spectrometry
Authors: Qiu Liang Liang , Ye Shu Ming , Chen Hang
Published: June 2012

An instrument is proposed for nitrate in situ monitoring in deep sea. It consists of a UV spectrophotometer, a deuterium lamp of high stability and low power consumption, a rugged and high-throughput retro-reflection probe and a center control board with large data storage capacity. With a measurement precision of nitrate concentration of 1μmol/l and a resolution of 0.5μmol/l, the instrument is able to measure nitrate concentrations from 0.5μmol/l to 320μmol/l. The system can automatically deduct the dark current to rectify the effect of temperature drift and correct the overall absorbance drift caused by instrument drift through integration of relative absorbance (IRA) algorithm. The system can endure the pressure at up to 1500m deep sea and carry out automatic long-term in situ detection of nitrate with high stability without needs for any manual intervention.
Microstructural Characterization and Thermal Barrier Effects of Conventional and Nanostructured ZrO2-7wt.%Y2O3 Thermal Barrier Coatings Deposited by Plasma Spraying
Authors: Wang Dong Sheng , Tian Zong Jun , Wang Song Lin , Shen Li Da
Published: June 2012

In this study, conventional and nanostructured MCrAlY/ZrO2-7wt.%Y2O3 double-layer thermal barrier coatings (TBCs) were fabricated on TiAl base intermetallic alloy substrates by the plasma spraying technique. The microstructural characterization and thermal insulation capability of the two types of coatings were comparatively researched. The results show that the conventional ceramic coating has a typical lamellar stacking characteristic. However, the nanostructured coating exhibits a bimodal microstructure, which is composed of both fully melted regions and partially melted regions (remained nanoparticles). The nanostructured TBCs has higher thermal barrier effect than the traditional one. The temperature drops of the nanostructured TBCs at 1100 °C increases 53% compared with that of the conventional TBCs.
Innovative Design Process for Intelligent Patient Bed by Using Synergy of TRIZ and QFDs Methods
Authors: Hu Chang Ming , Yeh Chi Hao , Huang Jay C.Y.
Published: June 2012

This research is to integrate the QFD and TRIZ theories into innovative principles of the intelligent patient bed design processes. The use of the QFD matrix expansion and its importance for the evaluation and analysis to build the front-end preventive design process will meet customer needs. The evaluation is based on the order of importance; the quality characteristics of the target specifications and quality characteristics of the correlation matrix. The design of an integrated sensor system to monitor patients‟ body movements while lying on beds enables the data quantity to be collected and analyzed to identify the cause of bed sores and the spots that bed sores are prone to occur. Armed with this information, designers and engineers can work to develop much-improved and market competitive products, which is the focal point of this article. Doctors can then treat patients more efficiently and effectively. All physical response data derived from the patients (testers) are documented to assess the correlations between the sensors and the human body. During the test time, the mechanism was activated, and all of which were able to effectively facilitate the reduction of bed sores for the patient by the intelligent patient bed.
Decision-Making Model for Convention Site Selection
Authors: Huang Han Chen
Published: June 2012

A number of factors must be considered when selecting a convention site. Typically, most selections are based on the decision makers’ knowledge and experience, which may lead to biased decisions based on the decision makers’ subjective judgment. This study establishes decision-making evaluation factors and attributes for convention site selection based on a literature review. After surveying experts’ opinions using questionnaires, we employed the fuzzy analytic hierarchy process (FAHP) to analyze the weighting of the factors and attributes. The results show that of the five evaluation factors, site environment is the most important, followed by meeting and accommodation facilities, local support, extraconference opportunities, and costs. Additionally, the five most important attributes among the 20 evaluation attributes are the suitability of convention facilities, suitability and quality of local infrastructure, climate, city image, and political conflict or terrorist threats.
Numerical Simulation on Precision Forging Process for Spur-Gear with Large Module
Authors: Liu Gui Hua , Zhong Zhi Ping , Bian Yi , Li Qian
Published: June 2012

The whole precision forging process of spur-gear with large module (module: 4) including warm forging, cold extrusion and cold sizing is analyzed. By using finite element method, cold sizing step of spur-gear basing on hollow-divided-flow method is simulated, the influenc of hollow diameter on the forging force and material flow is discussed in detail. Futher research shows that appropriate different tooth reduction is benefit to forming tooth profile without mechaning after forging. According to the research, to form such spur gear with module 4 and breadth 59mm studied in this paper, the hollow diameter should be 18mm and the tooth reduction should be 1.2mm. The necessary reference and basis to realize practical precision forging process of spur gear with large module is provided eventually.
A Circuit for Robustness Enhancement of the Subthreshold SRAM Bitcell in 65nm Technology
Authors: Lv Bai Tao , Li Rui Xing , Zhu Jiafeng , Bai Na , Wu Xiu Long
Published: June 2012

This paper describes a circuit which can enhance the robustness of the subthreshold 6T SRAM bitcell. The proposed circuit can dynamically adjust the body voltages of the PMOS transistors in order to enhance the robustness of the subthreshold 6T SRAM bitcell by detecting the variation of the threshold voltage. The simulation results under 300mV in 65nm technology demonstrate that the mean values of the read and hold static noise margin (SNM) of the subthreshold 6T SRAM bitcell have been improved by 18% and 0.7%, respectively, meanwhile the standard values of the read and hold SNM have improved by 82% and 29.4%, respectively, by adopting the proposed circuit. Moreover, the proposed circuit functions well in a wide range of supply voltage from 0.2V to 0.5V.
A New Multi-Focus Image Fusion Algorithm Based on Contrast Ratio and Discrete Wavelet Frame Transform
Authors: Deng Zheng Hong , Wang Mei Jing , Bai Xiao Ping
Published: June 2012

This paper proposes a multi-focus image fusion algorithm based on contrast ratio and discrete wavelet frame transform. Firstly, this algorithm uses wavelet transform to perform the wavelet decomposition of the source image, and then obtains the high-frequency sub-band coefficients after the discrete wavelet frame transform to reflect the details of the image, finally, gets the fusion image obtained by wavelet reconstruction. Using evaluation indicators of information entropy, standard deviation, average gradient and spatial frequency, it objectively evaluates the fusion quality of this algorithm. The experimental results show that the quality and effect of the fusion image derived from the algorithm are significantly improved.
Storehouse Seepage Analysis during the Construction and Operation Period
Authors: Huo Bao Rong , Yu Chong
Published: June 2012

Seepage analysis is important for the water-sealed underground oil reserves design.In this paper,feasibility study project is an example, carried out the calculation of the construction period and forecast of operation period, which are two aspects of the flow field characteristics of the analysis.In the flow field characteristics analysis of the construction and operation period, based on the establishment of the initial flow field model, FLAC3D stress and flow coupling module is used to carry out simulation caculation. According to the caculation results of the stable groundwater level and vertical hydraulic gradient, water-sealed effect is evaluated.We can see that the water-sealed storage design meets with the evaluation criteria,and this research work has a certain reference value for the similar projects.
Study on Drilling Fluid Technology of Eliminating Bit Balling by Changing Wettability
Authors: Ma Cha , Yang Yu Ping , Li Long
Published: June 2012

Using triethanolamine, vegetable fatty acid, alkyl polyoxyethylene alkyl ether sulfuric acid ester and dimethyl sulfate as raw materials, a new kind of anti-balling additive for drilling engineering (WORB) was synthesized. The wetting property and anti-balling performance of WORB were investigated according to the experiments of wettability, surface tension and absorption effect. The results indicate that the adsorption of WORB on the surface of the cuttings is monolayer adsorption, which can avoid repeated cutting caused by the agglomeration of cuttings. WORB can alter the wettability of rock surface and the inner pores of the rock to reduce the surface tension of the rocks. Moreover, WORB can form multilayer chemical and physical adsorption on the surface of drill bits and BHA in the form of oriented adsorption of organic phosphine.
Solid-Liquid Coupling Mechanism Research in Seepage Field and Stress Field of Fractured Rock Mass
Authors: Mao Hai Tao , Wang Xiao Ju
Published: June 2012

In this article, we use the porosity to express the effective stress of rock mass, and get the equilibrium differential equation. on this basis, using equivalent continuum model and the finite element method to simulate the degree of coupling. In full consideration the interaction between groundwater and the rock framework and referring to the underground water solid coupling seepage flow mathematic model, based on finite element theory, we obtain the calculation method and the coupling method. These methods can real simulate groundwater seepage condition and have a great significance.
Influence of the Outlet Aperture of Sensitive Chamber on the Stability of Fluidic Gyroscope
Authors: Zhang Bao Li , Piao Lin Hua , Yu Quan Gang , Mei Chuan Zhi , Ding Xia , Wang Xing
Published: June 2012

In this paper, influence of the outlet aperture of sensitive chamber on the stability of fluidic gyroscope has been studied. Using ANSYS-FLOTRAN CFD software, the finite element simulation was conducted by a series of procedures, such as two-dimensional model building of fluidic gyro, meshing, loads applying and equation solving, we calculated the airflow distribution in sensitive chamber of fluidic gyro with different outlet apertures. The results show that the airflow would decay and diffuse after it injects into the chamber through nozzle, the bigger the outlet aperture, the smaller the pressure in the outlet-side and the airflow velocity discharged from the outlet, and the more seriously the airflow decay and spread. An effective way to improve the stability and structural optimization of the fluidic gyro output has been studied in this paper.
Research on Optimization of Tundish Flow Distrbution
Authors: Gao Wen Fang , Zhang Jian Jun , Peng Zhu Gang , Li Wei , Wu Jiang Peng , Wang Jin Ping , Pan Yan Hua
Published: June 2012

Research was made on the flow behavior of the 45t single strand tundish by means of water model. The model was 1:3 in size of the real tundish. Experiment conditions satisfied Froude number similarity. Minimum residence time distribution (RTD) curves were determined by pulse response. The proportion of the plug flow, mixed flow and dead volume were calculated. An optimized solution was made of a combination of turbulence inhibitor, dam and weir to decrease the dead volume (Vd) in the tundish to 11.36%, 67.8% lower than before. Production contrast tests showed that, with the optimized flow control solution, removal of oxide inclusion in slab is improved by 35.3%.
Study and Analyse Hydraulic System of a Boat by Using Risk Analysis Method
Authors: Li Ning , Gu Yuan , Xing Shi Long , Li Lu
Published: June 2012

Analysis hydraulic system of a boat by using reliability method, setting up the fault tree, confirming the minimum cut set, working out the failure probability and the criticality importance of all base events. The datum is provided for security and maintainability.
Single-Phase Double-Stage PV Grid-Connected System Based on Multi-Carrier PWM
Authors: Zhou Guo Shun , Lin Ye Jin , Liu Yan Cheng , Zhang Qin Jin
Published: June 2012

In the traditional single-phase grid-connected photovoltaic(PV) system, the output grid-current has the shortcoming of high harmonic distortion rate. In order to solve the problem, an improved method on the inverter is proposed. The inverter consists of full-bridge circuit and auxiliary circuit. With the multi-carrier PWM, the inverter produces output voltages in five levels, which can reduce the THD of the grid current. At the same time, the hysteresis comparison method is introduced into traditional MPPT algorithm, which greatly avoids the oscillation problem of the maximum power point. At last, the simulation results show the effectiveness of the proposed method.
Automobile Braking Simulation Applied Research Based on ADAMS
Authors: Wang Yuan , Zhu Hui Tian
Published: June 2012

The application of the ADAMS in automobile braking simulation system is described in this paper. Several aspects concerning the extension of the application using ADAMS in this field are discussed with special attention focused on braking simulation regarding to regulating device of breaking force.
The Digital Protection of Minority Architectural Culture Heritage
Authors: Song Jing , Huang Hao Min
Published: June 2012

Using reverse engineering technology to minority architectural culture heritage protection is one of the most effective, economic and practical method to cultural heritage, which has high practical value.
An Improved Orphan Nodes-Reduced Mechanism in ZigBee Network
Authors: Liu Dan , Gao Yu Ling , Liu Ying
Published: June 2012

In ZigBee network, the network address assignment scheme is simple, but it restricts the child device number of some parent and the maximum network depth. And the scheme can not ensure all the devices to assign the addresses, even if there are some remaining address spaces. So some devices that are called orphan nodes can not join the network. Based on deeply studying the network formation in ZigBee network, an improved orphan nodes-reduced (IONR) mechanism has been proposed in this paper: using the two reserved bits in beacon payload fully according to the features of ZR and ZED; modifying the connection of joining nodes and potential parents by using the reserved bits and additional commands. The mechanism could reduce the orphan nodes and effectively improve the connectivity of ZigBee network, which avoided additional overhead based on constant length of beacon payload.
Real-Time Strain Monitoring and Control of Urban Bridge Cluster Monitoring System with FBG Sensor
Authors: Li Yi , Xiang Yi Qiang , Wei Hua
Published: June 2012

Structural strain is one of the important parameters of representing structural health condition. Fiber-optic strain sensors have a number of inherent advantages, such as high sensitivity to external environment, small size, light weight, resistance to electromagnetic interference, ability for absolute measurement, superior stability, easy multiplexing and compatibility of being embedded in structures, etc.. In this paper, a novel strain monitoring method using optical fiber Bragg grating (FBG) sensor has been applied to the urban bridge cluster monitoring system, the principle, design and application in the structural health monitoring system are described, two years of normal operation has shown that this kind of strain monitoring and control method is feasible and useful.
Design and Development of Web-Learning Platform Based on Multimedia Technology
Authors: Zhu Xiao Long , Zhang Jia Hua , Xiao Ke Yan , He Zhen Ming
Published: June 2012

According to the requirements, the design principles of web-based learning platform were presented, taking into account teaching and learning. Many instances were introduced to the instructional design. Modular structure was applied to design the system whose model was proposed. The prototype was built by Adobe Flash Professional, a timeline-based, object-oriented authoring tool. User interactivity, loading multimedia files and switching full-screen were achieved by Scripting languages. The result shows that it is informative, user-friendly and suitable for browsing on Internet.
Analysis Artistic and Performance Applications of Oracle
Authors: Guan Jia Qing , Hu Jing
Published: June 2012

Oracle as an aesthetic element in the Chinese cultural system, it contains double genes of abstract characters and concrete graphics. According to oracle, we can understand ancient's life style and mental state more intuitive. It gives modern graphic design some inspirations: speaking in graphics, there is no more redundant characters to explain. Moreover, combining the characters and graphics of tradition and design concept is a trend of modern design development, only the national art can last permanent. Therefore, to comprehensive and profound understand oracle's plastic arts, thinking mode and explanation meaning have a far-reaching influence on modern graphic design.
Supervised Clustering Algorithm for University Student Learning Algebra
Authors: Yih Jeng Ming
Published: June 2012

The popular fuzzy c-means algorithm based on Euclidean distance function converges to a local minimum of the objective function, which can only be used to detect spherical structural clusters. Gustafson-Kessel clustering algorithm and Gath-Geva clustering algorithm were developed to detect non-spherical structural clusters. However, Gustafson-Kessel clustering algorithm needs added constraint of fuzzy covariance matrix, Gath-Geva clustering algorithm can only be used for the data with multivariate Gaussian distribution. In GK-algorithm, modified Mahalanobis distance with preserved volume was used. However, the added fuzzy covariance matrices in their distance measure were not directly derived from the objective function. In this paper, an improved Normalized Supervised Clustering Algorithm Based on FCM by taking a new threshold value and a new convergent process is proposed. The experimental results of real data sets show that our proposed new algorithm has the best performance. Not only replacing the common covariance matrix with the correlation matrix in the objective function in the Normalized Supervised Clustering Algorithm.
Based on the Visual Modflow Surge Water Numerical Simulation Study
Authors: Wang Li , Liu Ye
Published: June 2012

The detailed analysis in shengli coalfield, two East open-pit coal mine geological ， hydro-geological characteristics and groundwater recharge, Runoff, drainage patterns. And on the analysis results of this analysis are mining areas of conceptual models of hydrogeology, numerical calculation method based on Visual Modflow first mining district 4 coal mine water water-bearing rock group. This article by multiple regression method using logging parameter estimation of permeability coefficient, solved in numerical simulation used in hydrological study on permeability coefficient of hole to determine does not meet the need of traditional issues.
Research on Queue Scheduling Algorithm Modeling and Analysis
Authors: Shi Heng Hua , Xu Xin , Wang Yu Jie , Yang Yuan Yue
Published: June 2012

With the development of network technology and the wide use of the Internet, QoS has attracted wide attention. Queue scheduling algorithm of Router is an important core technology of the network resource management for QoS. Through controlling usage of the link bandwidth of the different type groups, the different traffics have the different levels of service. Based on the analysis and modeling of FIFO, PQ, and WFQ scheduling algorithms, the simulation experiment simulate three different priority video conferencing traffic, and apply FIFO, PQ, and WFQ scheduling algorithms on the bottleneck link. The simulation results compare network delay of FIFO, PQ, and WFQ scheduling algorithms, and describe the various queue scheduling algorithm characteristics.
Some Extensions of Hilbert-Type Inequalities
Authors: Sun Bao Ju
Published: June 2012

In this paper, an extension of Hilbert-type inequalities with a best constant factor is given by introducing two parameter .
The Teaching Application of Systemview in Error-Controlling
Authors: Su Xin Hong , Zhang Zhi Xia , Yin Li Qiang , Gao Ling
Published: June 2012

Error-controlling codes is "communication principle" and "information encoding "of the course of important content, this section theoretical level, content abstract, students generally feel learning difficulties. At present many textbooks used more Matlab software to help readers better hold the content of study, but which needs programming, and the effect is not very ideal. In the paper, the author try to use the Systemview simulation software auxiliary teaching, and with (7,4) hamming as an example to illustrate the whole process. Teaching practice shows that the software is convenient to use, the effect is intuitive, and achieved good teaching effect, and display Systemview in communication simulation of powerful functions and superiority.
Research on Automatic Generation Technology of Structural Net and Speed Diagram
Authors: Li Li , Wu Zhao Yun
Published: June 2012

In view of the teaching problems and difficulties of machinery manufacturing equipment design, the automatic generation technology of structural net and speed diagram was proposed. The conceptions and characteristics of structural formula, structural net and speed diagram were discussed. The expected targets of the automatic generation technology were put forward. The technical principles of automatically generating structural net and speed diagram were respectively analyzed. Based on these, the automatic generation software of structural net and speed diagram was designed and developed. The development environment and implementation methods of the software were proposed. It is proved that the software can play an important role in improving the teaching effect and quality.
The Implement of a Flooding Information System
Authors: Cheng Chao Chung , Qiu Qi , Lee Guan Ting
Published: June 2012

As we know that absolute immunity from flood damage is not physically possible. However, with proper planning and continuous effort we can certainly look forward to an appreciable diminution of distress with an accelerated implementation of flood management measures. It is commonly accepted that the measures to mitigate flood losses need to be given the most efforts wherein Flooding Information System (FIS) is the primary measure of flood mitigation. Nowadays, the web-based Geographic Information System (GIS) is so popular and quite easy to combine with other field instruments for becoming another format of information system, such as FIS in this study even though it is still not quite popular and familiar yet. The use of FIS can be viewed mainly as a physical method of protection from floods and it first needs to effectively measure the flood influence in which flooded area and height may be the most desired measures for each of typhoon-induced ﬂood events. Furthermore, the geographic modeling tools are then added to estimate the scale of we face from typhoon-induced flooding from a computational perspective. The flood scale in terms of geographic volumes thru initial field flooding area and height may be the major contribution to make protection measures in advance. Field instruments include various flood mark recording devices. A number of new-designed stream gauges were installed in the low-lying plains to experience floods for recording their flood heights as a measure of flooded areas. As for real-time information, we set up the electronic stream gauges of the stilling well, which measured the height of a float in a hole dug alongside a stream channel. In addition, we also used other types of stream gauge include the pressure transducer, which inferred the depth of water in a stilling well by measuring the pressure of the column of water inside. The gage height values, taken at regular intervals, were recorded and transmitted electronically to the dedicated databases. Unfortunately, the verification did not show a satisfactory result as expected. However, as a general conclusion, with the right and sufficient field instruments, the FIS may provide accurately real-time flooding information to give protection or evacuation in advance provided that internal geographic data inside the system set up well at the first place.
Research on Temperature Control System with a Scaling Factor for Iron Ore Reduction Measuration
Authors: Xie Dong , Shi Jin Liang , Yu Qun Wei
Published: June 2012

This paper presents the principle of iron ore reduction measuration system. According to characteristics of temperature developing in experimental, the proper control rules are adopted in different temperature ranges and the self-optimizing algorithm is used in controller design. A new fuzzy controller with self-tuning factor for temperature control system can replace the traditional instrument control device and achieve precise temperature control. The result of experimentation shows that the control system has satisfactory performance with better reliability and efficacy. This method adopted in controller is practical and worthy for reference.
Rendering and Comparing Research of 3D Julia Sets Based on CPU/GPU
Authors: Xiao Xiao Ping , Li Zi Sheng , Gong Wei
Published: June 2012

Aiming at the problem that rendering 3D Julia sets on CPU is slowly, a method of rendering 3D Julia sets on GPU is presented in this paper. After introducing the advantages of GPU and the operations of quaternion, the generating process of 3D Julia sets is discussed in detail. Ray tracing volume rendering algorithm is applied to obtain high quality 3D Julia sets, and escaping time algorithm is used to generate the discreet data of Julia sets, of which normal is estimated according to the original of ray and accelerated by using unbounding sphere algorithm, and the graphics examples are given to illustrate this algorithm. Finally, the factors of affecting rendering speed and refined effect are summarized. The results show that the speed of 3D Julia sets rendering on GPU is much faster than CPU, and the interactivity of rendering process is also enhanced.
Multifunctional Entire the Design Protecting the Water Supply Control Device
Authors: Zhu Xiang Lei , Han Xian Qin
Published: June 2012

Realizing water supply system is the necessary equipment, the automatic improving water supply efficiency and water supply system looks like being more important right now. This article adopts AT89C2051 chip and designs entire multi-protection automation water supply system, which has the protect function of over voltage, under voltage, over stream, overload, and break the motor-protection. Without people’s supervision, this system can realize the automation of water-supply. At the same time, it can improve the rate of water-supply and stability of the system.
Traffic Signal Lamp Control System Design Based on S7-200
Authors: Xing Man Rong
Published: June 2012

the design is completed using the Siemens S7-200series programmable controller to realize the traffic signal lamp automatic control. The system completed the soft, hardware design based on the traffic signal control requirements, and the experiments proved that the system is simple, economic, reliable operation, has very high practical value.
A Adaptive Wireless Sensor Networks for Marine Monitoring
Authors: Yang Dong Hong , Wang Ji
Published: June 2012

The real-time online offshore monitoring system based on wireless sensor network has been designed.It successfully applied wireless sensor network technology to the field of ocean environmental monitoring system.The system is an automatic monitoring system without manual involvement,which runs automatically by the program from the data collection nodes import to the sink node through the communication nodes. The handheld sink has a slick looking interface.It is an offshore wireless sensor networks which can be set up flexibly and can monitor the changes of temperature,light intensity ,PH, dissolved oxygen and other parameters.The system is composed of three main components including data acquisition subsystem,data transmission control subsystem and data sharing subsystem.The subsystems are responsible for monitoring data collection,information transmission processing,data sharing ,and information service.This paper described the architecture of the entire system and the implementation of each module in details,especially the implementation of data acquisition subsystem including hardware packaging,software designing and environmental configuration.Through analyzing of telos node hardware and the energy status of routing protocols,it proposes energy-saving solutions based on energy-efficient routing and radio dormancy strategy. The system has been running for more than one year.It has been proved that the system is energy-saving.It has made an important impact on ocean ography.
The Control Strategy of the Rotor-Side PWM Converter Based on Doubly-Fed Induction Generator
Authors: Zhao Mei Hua , Fan Min , Wu Xiao Xin
Published: June 2012

This paper proposed a control strategy for rotor side PWM converter based on the stator voltage orientation. First, the mathematical models of Doubly-fed Induction Generator (DFIG) in a synchronous rotating coordinate system is derived .Then designed the control scheme for rotor side PWM converter. Finally, experimental platform for double-fed wind power generation system based on Infineon's XC2785 microcontrollers is established. The experimental results verify the feasibility and correctness of the control strategy.
Sensitivity Function Based Active Disturbance Rejection Control for the Plant with Unknown Order and Uncertain Relative Degree
Authors: Zhao Chun Zhe , Xu Rong , Xiong Jiang , Lin Xiao Ran
Published: June 2012

The active disturbance rejection control (ADRC) design based on the sensitivity function is studied for the linear time-invariant SISO minimum-phase system with unknown order and uncertain relative degree. It is proved that ADRC can reject the disturbance and guarantee the close-loop stability provided that the relative degree of such plant is bounded.
The Research on Long-Term Monitoring and Controlling Effect of Scientific and Technological Innovation for Liaoning Equipment Manufacturing Industry
Authors: Zou Hua , Zhang Yu , Sun Ai Ru
Published: June 2012

Liaoning equipment manufacturing industry is the foundation of regional economic development and the pillar industry in Liaoning province. Liaoning equipment manufacturing industry is not only the carrier of scientific and technological innovation, also the development of scientific and technological innovation. The long-term monitoring and controlling mechanism of scientific and technological innovation affects scientific and technological innovation for Liaoning equipment manufacturing industry, also determines the competitiveness of Liaoning equipment manufacturing industry. The long-term monitoring and controlling effect of scientific and technological innovation for Liaoning equipment manufacturing industry is not only in the interior and exterior, still can bring a series of incidental interests.
The Status of the Mold and Green Manufacturing in China
Authors: Han Min , Zhou Hai Guang , Zhou Di
Published: June 2012

On the basis of the status quo of China's mold industry，Green mold manufacturing trends in new materials, new processes, to extend the life of the mold design, design for disassembly of the mold, the mold surface treatment technology, standardization of mold design and information technology improvements.
An Effective Dynamic Evolutionary Algorithm for Engineering Problems
Authors: Zhang Qing , Zeng San You , Ye Hai Qing , Li Zheng Jun , Jing Hong Yong
Published: June 2012

A dynamic evolutionary algorithms (DEA) is designed to solve engineering problems in this paper. The DEA algorithm makes two differences. (1) Dynamic technique is used to handle equality constraints. (2) Two unrelated crossovers (linear crossover and uniform crossover) are combined in the algorithm for avoiding duplicate search and then helping global search. In solving engineering problems, three steps are taken: a DEA algorithm is designed first, then after tested by general benchmark problems, it is improved, and the third step is that the improved DEA algorithm is applied to solve engineering problems. The general test suggests our DEA algorithm outperforms the compared state-of-the-art other algorithms. The experimental results in solving 5 engineering problems indicate that our method works much better than the compared state-of-the-art algorithms, especially, in global search.
A Study of Knowledge Transfer on Flexible Manufacturing Capability and Manufacturing Performance
Authors: Zhou Jianming , Liu Yunfeng
Published: June 2012

As the transferring, application and integration of knowledge can highly improve organizational dynamic manufacturing capability, this paper takes an empirical study to explore the relationships among knowledge transfer, flexible manufacturing capability and manufacturing performance based on questionnaires from 113 advanced manufacturing firms in Pearl River Delta of China by the used of structural equation model method.
Study on Deformation Mechanism of Deep Soft Rock Roadway in Daqiang Coal Mine of Tiefa Coal Industry
Authors: Guo Zhi Biao , Li Er Qiang , Liu Jia Wei , Wang Jiong
Published: June 2012

As soft rock roadway projects have the characteristics of large deformation, and earth pressure,difficult to support, and all that make shallow form of support can not meet the needs of the soft rock roadway, the main reason is that the soft rock roadway has compound deformation mechanism, which makes that the single support physical science features and rock mechanical properties can not be coupled, and a key part of the soft rock roadway begins to undermine firstly, which leads to the instability of the entire supportive system. Therefore, identifying the soft rock roadway compound deformation mechanism and transforming the compound into a single type are the key technologies to solving soft rock problems. This paper utilized the deep soft rock roadway of Daqiang Coal Mine of Tiefa Coal Industry as engineering background, systematically studied the mechanical characteristics of the soft rock roadway engineering geology, deeply analyzed the mineral properties of surrounding rock, and proposed the soft rock roadway’s compound deformation mechanism and conversion process of transforming compound into single deformation mechanism, providing important theoretical basis for designing .Daqiang Coal Mine deep soft rock roadway
The Research of Automation Management Based on Configuration Technology
Authors: Luo Ya Lin , Guo Ye , Qiu Xin
Published: June 2012

The configuration software (KingView) is introduced based on the research projects about coal transportation control system design of XuZhou Power Station that describes the method to utilize the strong function of “Kingview 6”. Particularly the concrete implementation and development about several important parts, such as the making screen, the trend curve, the data form and the alarm function are researched, using the PLC software in King View to simulate system and introducing the key program. The results show that the integration of automation technology, computer technology and communications technology contributes to high precision, stable performance, strong practicability and improvement efficiency.
A 16Kb SRAM with Programmable Replica Bitlines for Dynamic Voltage Scaling Systems
Authors: Qiu Ming Qiang , Bai Na , Meng Jian , Chen Jun Ning
Published: June 2012

The SRAM applied to dynamic voltage scaling systems has a problem that the differential voltage of the bitlines (ΔVBL) increases as the supply voltage rises with the conventional replica bitlines technique, and the increased ΔVBL degrades the SRAM performance and dissipates more power. In this paper, a programmable replica bitlines technique is presented to resolve the problem. With the new technique we acquired bitline discharge time reduction up to 25.3% at the cost of 0.6% area penalty in a 16Kb SRAM. The 16Kb SRAM test chip is fabricated by using 65nm low leakage technology. Testing results show that the maximum operational frequency of the SRAM is improved from 4.3% to 9.5% under the voltage range of 0.8V~1.4V comparing with the conventional one. The operating frequency of the SRAM with proposed technique is from 440MHz at 0.8V to 1.62GHz at1.4V.
The GLR Chart for Poisson Process with Individual Observations
Authors: Li Li
Published: June 2012

A GLR (generalized likelihood ratio) chart for Poisson distributed process with individual observations is proposed and the design procedure of the GLR chart is discussed. The performance of the GLR charts is compared to the exponentially weighted moving average (EWMA) chart and the GWMA chart. The numerical experiments show that the GLR chart has comparable performance as the other two charts. However, the GLR chart is much easier to design and implement since there are more design parameters in these two charts.
Research on the Data Integration Technology Based on RFID of Supply Chain
Authors: Chen Da Gang , Yin Sheng
Published: June 2012

Radio Frequency Identification (RFID) RFID technology can help enterprises of supply chain to get the operation information of other enterprises and each business chains timely, and this can greatly increases the benefits of the supply chain management. Aiming at the problems of the fracture of the supply chain and its low efficiency, the solution based on CEP-RFID data processing mode and XML information sharing model was put forward in this article, it can strengthen the ability of the supply chain operation and management.
The Technology Structure Study on E-Commerce and Logistics System Integration of Household Appliance Manufacturers
Authors: Ji Shou Wen , Wang Kan , Wu Wen Ling
Published: June 2012

This paper analyzes and studies the non-functional requirements of E-commerce and logistics system integration, the structure set of web server development technology and the structure set of system function module of household appliance manufacturers.
Optimization of E-Commerce Logistics Process of Automobile Manufacturing Enterprise Based on ARIS
Authors: Ji Shou Wen , Chen Cheng , Wu Wen Ling
Published: June 2012

In the document, ARIS method is used to establish an E-Commerce logistics process module of automobile manufacturing enterprise, including overall process, production process, logistics process and purchase process. The document analyzes the optimization and reforming of distribution business of automobile manufacturing enterprise, which is in intensive supply chain mode.
A Direct Approach for Loop Subdivision Surface Offset Approximation
Authors: Chen Tian Tian , Wang Wei , Zhao Gang
Published: June 2012

A novel and direct approach for Loop subdivision surface offset approximation is proposed. Instead of solving a linear equation system previously, the main idea is to convert the Loop subdivision surface offset approximation into updating the vertices of original triangular mesh iteratively by using progressive interpolation (PI) method. Generated smooth subdivision surfaces interpolate the original mesh control points and preserve the sharp features. Then triangular mesh offset method can be utilized to obtain Loop subdivision surface offset approximation. The proposed method has the advantages of both local and global methods. The meshes considered here can be either closed or open. Some typical examples are illustrated to demonstrate the efficiency of the proposed approach in the end.
Finite Element Analysis of Deformation of the Multipoint Flexible Clamped Thin-Wall Component during Machining
Authors: Cao Guo Qiang , Sun Yi Yu
Published: June 2012

A study on deformation of multipoint flexible clamped thin-wall components during numerical control drilling in vertical direction downward is presented. The finite element model of multipoint flexible clamped thin-wall component during machining is established with program ANSYS, and a static analysis of deformation of the model is conducted. The laws of maximum deformation under different skin thickness, under different cutting force and on the 3 special machining paths in the cut area are obtained. The results show that the maximum deformation is linear with cutting force and exponential with skin thickness, and the function curves of the maximum deformation on the 3 special machining paths are all different, the function curve 2 is the composite superposition of the function curve 1 and the function curve 3.
The Research of Machining Process Design Based on Manufacturing Resources in MBD Mode
Authors: Yang Yang , Rong Mo , Neng Wan
Published: June 2012

To strengthen the application efficiency of 3D machining procedure model and the contact of process design stage and process implementation stage, and to reduce complicated issues of process change, machining process design and change based on the manufacturing resource information in MBD mode is proposed. Integration framework of manufacturing resources field and 3D machining process design and change are analyzed, manufacturing resource feature model of 3D machining process model is described, monitoring the manufacturing resource and collecting static and dynamic data of manufacturing resources through RFID is put forward, change of 3D machining procedure model caused by manufacturing resource conflicts are discussed, a closed-loop system structure of packaging manufacturing resource information and machining process change is established.