bluuebunny/crossref_metadata_2025 huggingface dataset:
On-Machine Profile Measurement of Arc Grinding Wheel in 3-Axis Machine Using Non-Contact Displacement Sensor
Authors: Huang Hao , Lei Xiang Yang , Xu Qiao , Guo Yin Biao , Luo Wei
Published: November 2010

Grinding is a processing method that involves duplicating shape accuracy, so the shape accuracy of the grinding wheel plays a crucial role in machining accuracy. However, this accuracy is difficult to obtain. This paper describes an on-machine wheel profile measuring method that uses a non-contact displacement sensor to obtain the shape accuracy of an arc grinding wheel in a 3-axis aspheric surface grinding machine. This method involves data processing with object radius confined filtering, as well as evaluation using the methods of fitting residual error, measurement uncertainty, and machining result simulation. To verify the feasibility of this measuring method, experiments were performed using two diamond grinding wheels (FEPA D91 with grit size 75-90 μm, and FEPA D15 with grit size 10-25 μm). The experimental results indicate that the method is accurate enough to give the arc grinding wheel profile measurement, while the measuring uncertainty is of the same order of magnitude as the grit size (that is, tens of μm). Moreover, the simulation of the grinding effect with wheel profile measurement data can derive the relationship between the wheel profile error and the machining form error, and can be used to instruct the truing time determination for precision grinding.
Optimization for Spindle of Jade Carving Machine Based on Fuzzy Reliability Theory
Authors: Shi Huai Rong , Rui Yan Nian
Published: November 2010

In machines working under the effect of alternating stresses, the fatigue bending deflection occured occasionally. On the basis of the Fuzzy Reliability Theory and with full consideration of the fuzzy factors during mechanical process, the paper studied the fuzzy reliability optimal design for the hollow spindle of multi-functional jade carving machine and improved the design quality of the jade carving machine spindle by probing into the combined model constructed by the random variables and fuzzy variables. The design was approved to be advanced, reliable and practical in service and provided a new way for the design of multifunctional jade carving machine spindle and other mechanical products.
Optimization for the Connection Parameters of HSK Tool Shanks
Authors: Liu Feng , Lin Bin , Gong Yu Mei
Published: November 2010

In this paper, the connection parameters of HSK tool-holder are investigated. After simulation analyses, the results show that the positioning accuracy of tool taper face and flange face can be improved for mezzo magnitude of interference and medium-high pre-tighten force. Meanwhile, higher magnitude of interference and pre-tighten force are more favorable for the stiffness improvement of HSK tool. For the special spindle structure, the optimal priorities of the connecting system with different parameters are obtained with the analytic hierarchy process.
Parameter Optimization for Oil/Air Lubrication of High Speed Ceramic Motorized Spindle without Bearing Inner Rings
Authors: Li Song Hua , Wu Yu Hou , Zhang Ke
Published: November 2010

Recently, hybrid ceramic bearings and oil/air lubrication have been used more and more on high speed spindles. However, applying an appropriate lubrication and the hybrid bearings can’t be overemphasized, and the oil/air supply with inadequate parameters is undesirable. In this study, a high speed ceramic spindle equipped with HIPSN (Hot Isostatically Pressed Silicon Nitride) full-ceramic ball bearing and Y-TZP (Yttria partially stabilized Tetragonal Zirconia Polycrystal) ceramic spindle shaft was designed for higher speed, stiffness, precision and longer operating life. Furthermore, the performance of a high-speed ceramic motorized spindle under different lubrication parameters was investigated. The optimum lubrication conditions that create the smallest temperature increase were obtained by the applying of the Taguchi method. The results show that oil volume per lubrication cycle, interval time per lubrication cycle and air pressure are three pacing factors that affect the temperature increase most significantly in ceramic motorized spindle with oil/air lubrication.
Parametric Design for Hydraulic Mounting Engine
Authors: Chen Chon , Jiang You Jin , Huang Lan
Published: November 2010

By analyzing the principle of the HEM with inertia track and decoupled disc-membrane, this paper carried the analysis and the summary to the effect of each parameter on performance and proposed an effective method for the design of internal parameters of HEM.
Performance Comparison between an MRF Damper and an MRE Isolator Incorporated with a Building Structure
Authors: Zhou Yang , Li Wei Hua , Hadi Muhammad N.S.
Published: November 2010

As an important member of smart materials, magnetorheological elastomers (MREs) exhibit characteristics that their modulus can be controlled by an external magnetic field. Based on these experimental results, a viscoelastic solid model with four parameters was proposed to predict the performance of MRE. A building model, three stories high, was constructed using MATLAB SIMULINK to evaluate the performance of an MRE device in structural control. In addition, the performance of an MRF damper and an MRE device in structural control, where the resultant peak force was selected as a criterion in the evaluation process, was compared and discussed. Two controllers, passive on and passive off control strategy were used to compare the response of structure. The effectiveness of an MRE bearing in structural control was well justified.
Prediction of Building Deformation Caused by Subway Construction
Authors: Liu Ning , Zhang Chun Sheng
Published: November 2010

In order to solve the problem of building deformation caused by subway construction, the equations for the calculation of the surface subsidence were deduced, on the basis of the probability integration method. Aiming at one experimental subway, a prediction program was worked out. The surface subsidence was calculated, the deformation curves were drawn out, the building deformation and damage classes caused by the subway construction were predicted according to the equations and the prediction program, and the corresponding safeguards were put forward. The study and the results will provide an useful reference to similar projects.
Prediction of Properties of MgO-C Refractory Based on Micromechanics Model
Authors: Wang Zhi Gang , Liu Chang Ming , Li Nan , Wang Yuan
Published: November 2010

The microstructures of materials determine their properties. Micromechanics is one of the effective methods by which the quantitative relationship between the microstructure of the material and macroscopical mechanical properties can be established. In this paper, the mechanical properties of matrix phase from two different MgO-C refractories were predicted by using micromechanics model. Then, the predicted results were explained based on their different microstructures and compositions. It was proved that the method provides a new approach for researching the mechanical properties of refractories.
An Anti-Collision Device with Circumferentially Energy Absorption under a Local Impact
Authors: Zhang Qiu Hua , Song Lai Long , Liang Chang Wei , Chen Dong Jin
Published: November 2010

A new design of anti-collision device is present in this paper. When the collision occurs, with the deformation movement, the anti-collision device can transfer the collision energy to the non-contact area, store the energy and release after collision, which can not only protect the protected object, but also reduce the damage to the collision-causing object, ensuring the anti-collision device itself can be reusable. As a result, this design of anti-collision device can greatly reduce damages and economic losses caused by the accidental collision.
Research in Model Testing Pier-Foundation Hysteretic Property in Passenger Dedicated Line
Authors: Ding Ming Bo , Chen Xing Chong
Published: November 2010

The hysteretic and skeleton curves of load-displacement relation in pier top were got through the model-testing method of pile-soil interaction. The test model of pier was analyzed through static method-pushover. The complexity of subsoil property and constitutive relation of subsoil under reversal cyclic loading was considered. The model characteristics of energy dissipated, hysteretic property, ductility, failure mechanism and plastic energy of the pier under the horizontal reversal cyclic loading were researched.
Research of Inventory Routing Problem Based on Combination Auction
Authors: Sun Bin Feng
Published: November 2010

The Inventory Routing Problem, once taken as a centralized optimization problem, integrated the inventory management and vehicle routing simultaneously, which leads IRP with distributed feature. The components were mapped into agents and coordinated by combination auction to generate the optimal delivery strategy. An experiment was conducted to show the distributed approach of multi-agent system might solve the centralized problems.
Research on Application of ERP System in Airlines
Authors: Han Hong Rong , Hu Li Yong , Liu Fei
Published: November 2010

With the rapid development of civil aviation of China, it is quite important for enterprise to develop strongly, adapt to fierce competition in the air transportation market and improve the competitiveness of enterprises. For the main features of the airlines business systems, this paper explains the integration of ERP systems, the airlines operation systems and maintenance system, which optimizes the main processes of airlines and accurately realizes the single aircraft cost accounting in the ERP systems from the information collected in the airlines operation systems and maintenance system, aiming to enhance the flight punctuality rate and to ensure flight safety.
Research on Case-Based Reasoning Parametric CAD Design System for Small Hydraulic Press
Authors: Zeng Yi Shan , Qian Jun
Published: November 2010

In order to satisfy the needs of small hydraulic press enterprises, a case-based reasoning design method is proposed, which introduces the techniques of parametric design, finite element analysis and optimization. The parametric CAD design system for small hydraulic press is developed based on SolidWorks by using VC++. And this system is composed of parametric design, database, finite element analysis and optimization. Customers’ feedbacks show that the parametric CAD design system has greatly enhanced the efficiency of the design.
Research on Correlation of Positioning Accuracy, Static Stiffness and Degree of Perfection of Control System for Crane
Authors: Xu Ge Ning , Tian He
Published: November 2010

The newest international standard ISO22986-2007 and Chinese national standards GB/T 3811-2008 propose the requirement of the positioning accuracy to crane's static stiffness and degree of perfection of control system, yet completely give up contacts with crane classification group, making the correlation of positioning accuracy, the static stiffness and degree of perfection of control system neither explicit nor direct-viewing. Therefore, it is necessary to research on the correlation to propose a more direct-viewing curve graph expression rather than abstract relations, thus seeking its relevance, generalizing its regularity, and providing the new way for crane's static stiffness design.
Research on Cutting Remanufacture Hardness Deposited Materials in the Impactive Condition
Authors: Wu Zhi Yuan , Liang Xiu Bing , Tian Xin Li , Zhang Shu , Wang Shu Hui
Published: November 2010

High performance cemented carbide YG610 was adopted for remanufacture hardness deposited materials cutting experiment. The experiment results showed that the same conclusions can be drawn from two group orthogonal experiments. The influence order on cutting capability of cutting tools was: feed rate﹥cutting speed﹥ cutting depth. The cutting length of cutting tools increases monotonously with the feed rate decrease. And the effects by the cutting depth were comparatively small, which is almost negligible in hardness materials cutting. Therefore，low feed rate and large depth of cut are beneficial to keep cutting capability of cutting tools and improve manufacturing productivity. By the results of two orthogonal experiments and extreme deviation analysis, the optimal scheme for cutting parameters were achieved after calculating the best level of the factor.
Degradation of Azo Dye Orange II in Aqueous Solution by Homogeneous UV-Fenton Process with Low Concentration of Fe3+ as Catalyst
Authors: Chen Jian Xin , Hu Zhao Ji , Yuan Xue Xia , Yao Yan Hong , Li Jun
Published: November 2010

In this paper, degradation of Orange II by homogeneous UV-Fenton process with low concentration of Fe3+ as catalyst was detected. And the effects of UV light wavelength, initial pH and reaction temperature on degradation of Orange II in homogeneous UV-Fenton system were studied in detail. It was found that the arithmetic sum of the rate constants of dye degradation in Fenton and UV-H2O2 and UV was much lower than that in UV-Fenton system with low concentration of Fe3+ as catalyst. The result showed that using low concentration of metallic salts as homogeneous catalyst would be a good alternative in UV-Fenton system for wastewater treatment.
Design of a Ka Band Microstrip Patch Antenna with Pattern Reconfigurable Characteristic
Authors: Deng Zhong Liang , Yao Yi Dong , Hong Man Zu
Published: November 2010

This letter presents a novel microstrip patch antenna operating in the Ka band (26.5GHz-40GHz) with pattern reconfigurable characteristic. The antenna is provided with one circle patch, two arc patches and four parasitic rectangular patches. The centre patch is connected with the arc patch by a RF MEMS (microelectromechanical systems for RF circuits) switch. The beam can scan in the E-plane by switching the states of the antenna, which is implemented by changing the states of the switches installed in the gap between the patches. Different states of the antenna have different radiation patterns. The two states share the same operating band of 35.6-37.9GHz with the centre frequency of 36.6GHz and their maximum radiation directions are -38° and +37° respectively. The antenna can be applied in radar, satellite, security communications, etc.
Emulational Analysis of Concrete Pouring in Steel-Pipe Arch Rib of Fei Shuiya Bridge
Authors: Fan Xiao Chun
Published: November 2010

Fei Shuiya Bridge is a half-through steel-pipe concrete arch bridge with uniform catenary. Based on sufficiently considering the principle of symmetrically loading rib concrete, the pouring process of concrete is calculated through MIDAS/Civil 6.71. Structural distortion, bearing-force characteristics and stabilization coefficient of each phase are given. Structural security is discussed too. Conclusions have a certain reference value for the same bridge in pouring the rib concrete.
Multi-Node Distribution Center Location Model under Manufacturing and Remanufacturing System
Authors: Zhao Ya Peng
Published: November 2010

This study establishes the logistics distribution center location model under manufacturing and remanufacturing system and modifies alternative expenses and time- restricting condition s of logistics distribution center location model according to the specific feature of model under manufacturing and remanufacturing system. It’s necessary to consider all the factors during the course of establishing the logistics distribution center location model. And it is also necessary to consider effectiveness of distribution center in model and ask for the experts’ opinion and advice. A location model by combining DEA model and mixed integer programming is presented. In this model, in terms of the results of the evaluation of the efficiency of the distribution center by the DEA model, this result is regarded as a constraint of the model. Finally, An example demonstrates that the model can solve the problem of distribution centers location and provide an effective decision tool for decision-maker.
Ka-Band Wideband Pattern Reconfigurable Microstrip Patch Antenna with RF MEMS Switches
Authors: Deng Zhong Liang , Hong Man Zu , Yao Yi Dong
Published: November 2010

A Ka-band microstip patch antenna with the functions of switchable pattern is presented. The antenna structure is composed of three rectangular patches and four radio frequency microelectro-mechanical system (RF MEMS) switches. The switches are placed to connect the center patch with other two ones, with two switches on the top edge of the center patch and others on the bottom edge. By controlling the states of the RF MEMS switches, the proposed antenna can radiate two patterns. Moreover, the switchable functions are operated at the same frequency band with a bandwidth of 30.9%. Simulated results by Ansoft HFSS are given.
Mobile Learning: An Application Prototype for AVL Tree Learning Object
Authors: Mohammad Noor Ibrahim , Saipunidzam Mahamad , Edrea Chua Ning Wei
Published: November 2010

The rapid growth of mobile phone technologies encourages many researchers to explore, design and develop mobile learning applications for tertiary students. In computer science related disciplines, students always find computer science concepts as complex, abstract, and esoteric subject. Hence, we have seen the number of students enrolled for computer science related programs has decreased lately. Current delivery methods for computer science concepts are found not to be interesting to the students. This project focuses on the design and development of an AVL tree learning object for tertiary students by utilizing current mobile phone features such as mobility, multimedia capability and connectivity. Our approach is to incorporate video clips in presenting the algorithm systematically. With this mobile learning application, student could learn at his or her own pace, anywhere anytime. This application intends to complement the current traditional classroom and e-learning systems. Initial testing has shown that a well-presented video clip of AVL tree concept that delivered through mobile phone has a great potential to promote and enhance learning process.
Evolutionary Game Analysis on Management of R&D Staff
Authors: Zhu Zheng Kui , Lu Hai Shu
Published: November 2010

At present, by using qualitative methods, many scholars studied their motivation mechanisms and analyzed their motivation factor and processes from the perspective of behavior and psychology, but attempts to consider the interaction among the R&D staff, between the R&D staff and the enterprises have been very few. So, this paper establishes an evolutionary game models for studying motivation mechanisms of the R&D staff under the assumptions that the enterprises and the R&D staff all have bounded rationality. By using replicator dynamics equations, this paper analyses the strategy choice on the interaction between the R&D staff and the enterprises, among the R&D staff, and furthermore, discusses the evolutionary stability strategies of the R&D staff and the enterprises.
Investigation and Analysis on the Effect of Autonomous Learning in Colleges Based on Information Technology
Authors: Li Shu Ying , Wang Zhi An , Liang Bo
Published: November 2010

Autonomous learning mode has been concerned widely in college teaching based on information technology, but the effect has yet to be tested. This thesis used the method of questionnaire survey to investigate and analyze the effect of autonomous learning in college. Then analyze the problems existing in the teaching and make corresponding countermeasures to provide a basis, which can improve independent learning in college.
Patent Innovation Factors Evolution Based on P-SVM and GCCA
Authors: Xu Sheng , Wang Zhi Juan , Zhao Hui Fang
Published: November 2010

A two-stage neural network architecture constructed by combining potential support vector machines (P-SVM) with genetic algorithm (GA) and gray correlation coefficient analysis (GCCA) is proposed for patent innovation factors evolution. The enterprises patent innovation is complex to conduct due to its nonlinearity of influenced factors. It is necessary to make a trade off among these factors when some of them conflict firstly. A novel way about nonlinear regression model with the potential support vector machines (P-SVM) is presented in this paper. In the model development, the genetic algorithm is employed to optimize P-SVM parameters selection. After the selected key factors by the PSVM with GA model, the main factors that affect patent innovation generation have been quantitatively studied using the method of gray correlation coefficient analysis. Using a set of real data in China, the results show that the methods developed in this paper can provide valuable information for patent innovation management and related municipal planning projects.
Optimized Configuration for the Upper Body with a Bisecting Hip Mechanism in Passive Dynamic Walking
Authors: Zhao Jie , Wu Xiao Guang , Zang Xi Zhe , Yan Ji Hong , Zhu Lei
Published: November 2010

Biped passive dynamic walking is a promising idea towards the goal of humanoid robotics further after the proposal of the upper body in these years. In this paper, we deduce the dynamic robot model with the upper body based on bisecting hip, in which the section of the swing phase is performed by Lagrange method, while the section of the collision phase is completed in terms of the principle of angular momentum conservation. The analysis of the global stability and the local stability are combined with each other, based on which the configurations of parameters with different mass and size of the upper body are discussed. Finally the optimized configuration of the model is obtained after the simulation in Adams environment. Results verify that the model with an upper body exhibits an extraordinary stability and robustness under circumstances of either a single disturbance or random disturbances.
A Generic Framework for Human-Machine Hybrid Recognition Based on Wearable Visual Computing
Authors: Han Lu , Xue Fang Zheng , Li Zu Shu , Chen Dong Yi
Published: November 2010

In this paper, we propose WearVis, a generic framework for human-machine hybrid recognition based on wearable visual computing. The chief objective of WearViS is to help human complete the complex recognition task and let user flexibly interact with the visual assistant system. The framework process can be described in four steps. First, the behavior of human’s attention drivers WearVis search region of interest. Second, WearVis selects the most abundant features in image sequence. Then, WearVis detects and localizes task-related interest objects. Finally, WearVis select the natural interaction strategy according to the priority of recognition task. We describe the goals and architecture of WearViS, a prototype implementation that validates its design.
Improved Multi-Scale Retinex Approaches for Color Image Enhancement
Authors: Zhu Min Yun , Su Feng , Li Wu Jing
Published: November 2010

In this paper, an improved multi-scale Retinex with color restoration is proposed by correcting some distortion on color rendition. By using the proposed method, results of image enhancement are obtained and compared further with those acquired by employing the single-scale Retinex, the multi-scale Retinex and the conventional multi-scale Retinex with color restoration. For HSV space shows better color channel independence by comparison with RGB space, a multi-scale Retinex in HSV space is given out and explored to enhance images. The experimental results do show distinct information and effects.
Research on Consumers’ Brand Choice Cognitive Processes
Authors: Wang Xiao Hui , Lin Lin
Published: November 2010

The paper firstly analyzes ACT* theory based on production system frame and its study principle deeply, analyzes and discusses the cognitive processes of consumers’ brand choice by using production rules on the basis, and gives out new explanatory notes on dynamic study phenomenon of consumers experienced after several brand choice processes..
Framework of RFID-Based Infrastructure Project Quality Management Expert System
Authors: Cheng Hai Fang , Zou Dan Feng , Jiang Shi Miao
Published: November 2010

This paper presents a real time information tracing and monitoring expert system for the infrastructure project quality management with radio frequency identification (RFID) technology. This paper purposes to research the improvement of the real time information tracing method and the quality management in the infrastructure project. The paper studies and analyzes the advantages and issues of RFID technology and structures a RFID tracing system. Based on a value-focus-process (VFP) model of the project, a quality expert management system is built with the composition of RFID systems, VFP expert system and project management system. The VFP expert system inspects project quality by tracing the activities of the materials and members objectives in the project, and analyzes the information to determine the causes of abnormal and how to guarantee the quality. The VFP expert system also provides security schemes for the project to avoid risks. By utilizing RFID tracing technology, the project management system may be more effectively and sensitive with accidents than the traditional one. The paper finds that the quality management workflow in infrastructure project can be more visible and controllable with an RFID-based VFP expert system.
Dynamics Analysis of a Novel Mine Disaster Searching Robot
Authors: Zhao Jie , Zhu Lei , Zang Xi Zhe , Liu Gang Feng , Liu Gang
Published: November 2010

A novel mine disaster searching robot is designed in order to increase the searching capability in a mine disaster. The dynamics of the novel mine searching robot is mainly studied. The kinematics is set up based on the joint location restriction and then the dynamic model is built by Newton-Euler method. The tractive force and slip of tracks of the mine searching robot is analyzed when moving on the different ground. A theoretic reference is provided for distinguishing the terrain parameters experienced by the mine searching robot and for robot motion planning and control.
The Use of TiAlN Coated Carbide Tool when Finish Drilling of Stainless Steel X4Cr17Ni8TiN
Authors: Jurko Jozef
Published: November 2010

In this paper presents the conclusions of machinability tests on a new stainless steel X4Cr17Ni8TiN, which applicated in food processing industry, and describes important concurrent parameters for the cutting zone during the process of finish drilling. This paper presents the results of experiments that concerned the verification of temperature fields in tool and the machined surface by drilling of stainless steels X4Cr17Ni8TiN. The content of this paper also focuses on the analysis of selected domains through basic indicators of steel machinability: cutting edge tool life, surface roughness, and wear mechanisms. The machinability of stainless steels is examined based on the cutting tests. The effect of cutting speed are analysed by tool wear mechanisms, and temperature tool. Based on the cutting tests, cutting speeds of 40 to 80 m/min, feed rate of 0.04 to 0.1 mm per rev.and solid a new design of screw drill from sintered carbide with hydraulic holder. Diameter of screw drill is 5.5 mm. Tool wear criterion of VBK value 0.12 mm. Wear mechanisms analysed by Semi Electron Microscopy (SEM).
Design and Realization of Jiufeng Multimedia Display System
Authors: Cheng Xing Yong , Huang Xin Yuan
Published: November 2010

With the continuous development of computer technology, multimedia display technology has been developed further and applied in wider fields. While in terms of landscape, the application of multimedia display technology is still in the preliminary phase. This paper demonstrates and analyzes the application of multimedia system in landscape field with the example of Jiufeng multimedia display system and forwards the construction flow and realization methodology of multimedia display system in landscape field.
Realization of Ethernet and RS485 Communication Gateway Based on μC/OS-II System
Authors: Wu Hua Zhu , Zhang Le Jun , Zhang Chun Guang
Published: November 2010

In order to realize the interconnection between RS485 interface equipments and industrial Ethernet to satisfy the information integration needs from enterprise equipment control layer to management layer, the paper introduces a realizing method of embedded Ethernet gateway based on μC/OS-II system. This method use LM3S8962 micro-controller which integrate Ethernet controller as control core to finish the conversion between Modbus and TCP/IP protocol by opening up a data buffer, and to enhance the speed of data communication. Compared with other embedded gateway it has simple hardware structure, easy software and strong anti-interference, etc.
Investigation and Impact of Knowledge-Based Information on Programming Languages Based on Probabilistic Models
Authors: Qu Zhi Ming
Published: November 2010

In recent years, much research has been devoted to the refinement of IPv6; on the other hand, few have investigated the confusing unification of interrupts and Internet QoS. In this position paper, it demonstrates the emulation of interrupts. In order to overcome this quagmire, a novel system is presented for the intuitive unification of expert systems and massive multiplayer online role-playing games. It is concluded that erasure coding can be verified to make heterogeneous, interposable, and event-driven, which is proved to be applicable.
Content-Based Affective Intensity Recognition Algorithm Using Unascertained Measure
Authors: Yan Le Lin , Wen Xiang Ming , Zheng Wei , Zhang Liang
Published: November 2010

Affective content recognition is an unsolved technical problem in intricate video retrieval and high-level applications. In this paper , a few video retrieval problems are studied at the view of affective intensity recognition. A novel algorithm about video scene affective intensity recognition, which is based on the unascertained measure, is proposed. The algorithm consists of two parts. Firstly, the sub-module of video affective intensity features extraction introduces the affective intensity feature extraction sub-models of the shots correlation coefficient（SCC） and the duration ratio of the shots（DROS）. Secondly, the sub-module of affective intensity determination includes the unascertained intensity measure matrix of video scene and video affective intensity type recognition sub-model. The experimental results show that the proposed algorithm is feasible and achieves more than 70 percent accuracy.
Ride Height Control of Trucks with Electrically Controlled Air Suspension Based on PID/PWM Algorithm
Authors: Xu Xing , Li Zhong Xin , Qin Shao Jun , Pan Chao Feng
Published: November 2010

The truck with Electrically Controlled Air Suspension(ECAS) could reduce the loss of goods by setting running height when transporting, and to enhance the loading &unloading efficiency, a height modulating model was built by combining the theories of thermodynamics of variable-mass charging-discharging system and the vehicle kinetics. To solve such problems as “over-charging”, “over-discharging” and surging, a height control strategy of variable integral PID/PWM was proposed and its controller was developed base on the Freescale single chip. Finally the semi-physical rig was built for simulating the truck with the height controller, and the testing results show that the designed control system satisfies the requirement of height modulation.
The Design of High-Speed CMOS Imaging System Based on SOPC Technology
Authors: Yang Xin Hua , Shang Yuan Yuan , Xu Da Wei , Niu Hui Zhuo
Published: November 2010

This paper introduces a design of a high-speed image acquisition system based on Avalon bus which is supported with SOPC technology. Some peripherals embedded in Avalon bus were customized and utilized in this system, such as imaging unit, decoding unit and storage unit, and these improved the speed of the whole imaging system. The data is compressed to three-fourths of the original by the decoding unit. A custom DMA is designed for moving the image data to the two caches of the SDRAM. This approach discards the method that FIFO must be put up in the traditional data acquisition system. And therefore, it reduced the CPU’s task for data moving. At the same time, the image acquisition and the data transmission can complete a parallel job. Finally, the design is worked on the high-speed image acquisition system which is made up of 2K*2K CMOS image sensor. And it improved the image acquisition speed by three ways: data encoding, custom DMA controller and the parallel processing.
Test on Flood Prediction-Model Using Artificial Neural Network for ShiiLiAn Hydrologic Station on MinChiang,China
Authors: Luan Qing Hua , Cheng Yao , Ima Zha Xin
Published: November 2010

The establishing of a precise simulation model for runoff prediction in river with several tributaries is the difficulty of flood forecast, which is also one of the difficulties in hydrologic research. Due to the theory of Artificial Neural Network, using Back Propagation algorithm, the flood forecast model for ShiLiAn hydrologic station in Minjiang River is constructed and validated in this study. Through test, the result shows that the forecast accuracy is satisfied for all check standards of flood forecast and then proves the feasibility of using nonlinear method for flood forecast. This study provides a new method and reference for flood control and water resources management in the local region.
Privacy Preserving Coordinating Model in Lot to Lot Supply Chain Based on Common Replenishment Epoch
Authors: Zhong Wei Jung , Xie Cui Hua , Zhang Yu Lin
Published: November 2010

One of the important streams of research in supply chain management is the coordination between suppliers and retailers by varying the lot-size and the purchase price and common replenishment epoch (CRE). But most of the CRE solutions either assume existence of a central planner who has all the information about the system, or assume that each participant of the computation shares all of his information with other participants. These solutions are problematic when the data is sensitive and the participants are reluctant to share their private information. The development and deployment of privacy preserving coordinating model in lot to lot supply chain based on common replenishment epoch could allow supply chain collaborations to take place without revealing any participant's data to the others, reaping the benefits of collaboration while avoiding the drawbacks. In this paper, we develop and apply secure minimum sum of multi-dimensional protocol to the problem of coordinating a single-vendor multi-retailer inventory system with a probabilistic demand which follows normal distribution, where the objective is to find a CRE policy for each facility in the system such that the total average ordering and inventory-related cost of the entire system is minimized.
Evaluation of Regional Cultural Creative Industries’ Development Based on Fuzzy AHP Method
Authors: Hui Su
Published: November 2010

Cultural creative industry has become a strong engine in current economy. To acknowledge the development of cultural creative industries objectively can guide us to acknowledge the role of cultural creative industry more clearly and would be beneficial for the layout of relevant industry development policies. Currently the evaluation is limited and qualitative method often be adopted. On the basis of theory of regional industrial competitiveness, this paper constructs a corresponding evaluation index system in terms of the technology competitiveness, talent competitiveness, environment competitiveness, input competitiveness and output competitiveness. It also establishes an evaluating model of regional cultural creative industries based on the method of fuzzy AHP, and used this model on Henan as an example, and empirically analysis the competitiveness of cultural creative industries in this region. The results show the fitness of fuzzy AHP method in cultural creative industry’s competitive ability, which have active meanings for improving the quantitative research of cultural creative industry research, also relevant advices on improving the development of Henan cultural creative industries were brought forward, which would be serve as the reference for government officials to make decisions.
An Integrated Multimedia Learning System for Reciprocating Internal Combustion Engines: RICEM
Authors: Yeh Chung Wei , Wu Kee Rong
Published: November 2010

A cost-effective multimedia learning system, RICEM, for reciprocating internal combustion engines was proposed in this study. This system contained the graphical introduction of engine components, engine structure animation, thermal theory, feedback and assessment based on Mayer’s multimedia learning cognitive theory. Reciprocating internal combustion engines are used all over the world to drive compressors, pumps, electric generators, motor ships and other equipments. We used multimedia software to construct the learning system. An experiment comprising of two groups of 30 participants separately was conduct to test the effectiveness and showed that there was a significant difference between the pre-test and post-test score in the RICEM group, as compared with the control group. This study suggested that a collaborative application appeared to be promising in supporting effective learning of modern technology, by combining the integration of learning theory and multimedia design.
Precise Location Technology Based on Chirp Spread Spectrum
Authors: Zhang Yan
Published: November 2010

This article introduces chirp spread spectrum technology (CSS for short), and location algorithm is optimized. Symmetric double-sided two way ranging technique (SDS–TWR for short) is applied to improve measurement accuracy and range. Linear frequency modulation ranging technology uses protocols combining CSMA / CA and TDMA, and adjusts dynamically transmission rate and frame length according to noise, interference and multipath to ensure optimal throughput and accurate distance information. System has anti-jamming capability and covers great distance.
Hierarchical Classification Methods of Chinese Scientific Papers Based on Extracting Key Words
Authors: Yang Huan Hai
Published: November 2010

In recent years, there have been extensive studies and rapid progresses in automatic text classification, which is one of the hotspots and key techniques in the information retrieval and data mining field. Feature extraction and classification algorithm are the crucial technologies for this problem. This paper firstly proposed feature extraction algorithm based on key words, the algorithm selected key words set from special part of scientific papers, and employed mutual information to extract features. And then, proposed an improved hierarchical classification method, and realized hierarchical classification of Chinese scientific papers.
Optimal Sliding-Mode Terminal Guidance Law Design of Airborne Boost-Phase Ballistic Missile Interception
Authors: Cui Yan Kai , Fu Li , Liang Xiao Geng , Luo Ling
Published: November 2010

Aiming at terminal guidance law design of airborne boost-phase ballistic missile interception under acceleration of target without availability, we study on optimal sliding-mode terminal guidance law design of Kinetic-Kill Vehicle. Motion characteristic and infrared characteristic of ballistic missile are analyzed basing on founding ballistic missile boost-phase motion equations. Optimal terminal guidance law of Kinetic-Kill Vehicle is designed basing on undershoot quantity least and energy minimum. Optimal guidance law and augmented proportional navigation law having the same form is proved in theory. Optimal sliding-mode terminal guidance law is designed under acceleration of target without availability, using optimal control theory and sliding-mode control theory. Simulation show that optimal sliding-mode terminal guidance law satisfies required index, reaching the aim to direct hit the target. The correctness and effectiveness of the optimal sliding-mode guidance law are proved.
Sensitivity Analysis of the Quality Evaluation System for Baikal Skullcap Root
Authors: Li Ke , Cheng Wei , Liu Xiao Jian , Li Shu Bin , Hou En Guang , Gao Yan , Wang Liang , Liu Qing , Zhao Bo Nian , Yu Zong Yuan
Published: November 2010

In this paper, with the aid of a quality evaluation model, we study sensitivity analysis of the quality evaluation system for Baikal skullcap root and compute related sensitivity indices, hence determine the response of pharmacological effect under the model by varying chromatographic fingerprint data. This result is new and provides us with a feasible method for the quality evaluation of Traditional Chinese Herbal Medicine.
Multi-Population Coevolutionary Differential Evolution Algorithm
Authors: Zhang Yi , Yang Xiu Xia
Published: November 2010

The multi-population coevolutionary differential evolution (DE) based on estimation of distribution algorithm (EDA) is proposed. DE completes optimum search using the difference information between the individuals in the population, but the global population evolution information can not be used sufficiently. In this paper, the multi-population co-evolutionary is introduced, which incorporate the merits of the DE and EDA. The elite mutation is proposed in DE. To overcome the greed characteristic, the chaotic initialization and replacement are introduced in DE and the individual diversity in EDA is adjusted based on the individual density. Simulation results show the good global search ability of the proposed algorithm.
The Study & Application on Shipborne Satellite Antenna Automatic Tracking System
Authors: Chen Yong Li , Jin Ying Wei , Chu Yong Li , Zhao Xia
Published: November 2010

For the shipborne satellite antenna system，owing to the continuous change of the carrier’s position and pose as the time passing, we must conduct real-time measurement on the pose of satellite antenna, so that the satellite can be aimed through servo control system. In this paper, the hardware and software about the shipborne satellite antenna system are introduced. Three-dimensional closed-loop servo control system which is made of three kinds of pose sensors is implemented to isolate the links between the antenna pose and the carrier’s position and pose. FSK serial communication is adopted to realize a reliable control commands and data transmission between the control unit above the deck and the control unit under the deck. Conical spiral scan based on the best AGC signal realizes automatic tracking satellite and locking it. The result of the examination shows that the pointing of antenna is of steadiness, precision(the point precision is less than 0.3 degrees), real time and speediness(the capture time is less than 25 seconds ).
Redundant Repair Mechanism Base on the Hierarchical Structure Model
Authors: Ju Zheng Quan , Yuan Liang , Man Meng Hua , Wang Chuang Wer
Published: November 2010

This paper proposed a hierarchical structure model of the electronic system firstly, and then the expression method of the structure matrix was optimized. After that, the repair question of the system with redundant module was analyzed and turned into a kind of matrix solving, and the redundant repairs algorithm was provided at the same time. By repairing one bit half adder with one redundant mould, the feasibility of this method was proved and a new thought for the electronic system repair online was raised.
Fault Analysis of AC Circuit Based on Phase Analysis
Authors: Yu Jing , He Zi Xin , Huang Liang
Published: November 2010

To analyze the fault of AC circuit that contained several energy storage components, a method based on phase analysis is presented. Firstly, the circuit program is developed by MATLAB software, Equation of output voltage of AC circuit is established in MATLAB. Secondly, the program of phase analysis is compiled in MATLAB language, this program convert sinusoidal signal to phase signal. Thirdly, circuit responses are obtained in different fault conditions through repeated modifying parameters of components. Finally, fault dictionary is constructed that these samples will be used to diagnose AC circuit in the future. A fault analysis example of AC circuit is provided. The result shows that this method has several advantages of simple algorithm, objective formulation, understandable signal, explicit figure, etc.
A Modeling and Analysis of Push-Pull Forward Topology
Authors: Hou Dian Li , Zhang Qing Fan
Published: November 2010

By circuit averaging method, a small-signal model is derived from push-pull forward topology which works in Continuous Conduction Mode (CCM). Dynamic large-signal model, DC circuit model and small-signal model are derived. The effect of leakage inductance on push-pull forward topology is analyzed and simulated in detail.
The Development and Application for Oil Output Prediction Software System Based on Life Model
Authors: Zhang Yi , Jiang Guang Jun , Wang Chun Lin , Zhao Zhi Wei
Published: November 2010

Life model” is the prediction system chosen for this system. Life model method is a mathematical model of generalized convergence which can predict oil output in macroscopic view. This paper selects several life models such as Weng’s model, Hubbert model and HCZ model; bringing them into the study on the development of the systems for predicting oil output; predicting the oil output of Country M from 2010 to 2050 by this system; and making certain the features of various kinds of mathematical model by applications. The results showed that the system which is based on life model can give an effective prediction on oil output.
Study on Optimization of Multi-Type Aircraft Scheduling Robust Model
Authors: Huang Wei , Wang Wen Jun , Bai Fu Li , Zhang Xiang Hui
Published: November 2010

Phased implementation approach, namely three models: aircraft type distribution model, aircraft scheduling model, robustness model is used to achieve the optimization of aircraft scheduling robustness. Aircraft type distribution model is established to obtain the best model of each leg; then fleet scheduling model is established to determine specified type in the implementation of the specific aircrafts for each flight, flight strings, which meet the constraints, are obtained by solving; finally, the flight robustness model is established, that is, flight string with minimal impact is selected from above flight strings to obtain high robustness of multi-type flight scheduling combination. The phased multi-type aircraft scheduling robust model has been successfully applied in the domestic airline scheduling, it has been achieved a better effect of robust optimization.
The Research of Next-Generation Internet Broadband Access Technology
Authors: Liu Rui Li , Han Xue Mei
Published: November 2010

The status of internet development in China, the current problems in broadband access technology, and the comparisons of next-generation access technologies of Asymmetric Digital Subscriber Line 2+ (ADSL2+) and fiber to the home (FTTH) are presented in this paper. It is proposed that the development of FTTH is of great importance in the future internet. Moreover, the current problems of FTTH cost and development prospects are also analyzed.
Study on a New Type Gas Regulator Based on Dual-Mode Self-Tuning PID Control
Authors: Ma Jun Gong , Liu Yue Xue , Bai Guo Chang
Published: November 2010

The stable output-pressure of a gas regulator has important significance to the operational safety. This new intelligent gas regulator’s key problem is that the output-pressure is difficult to be stable with the single PID control parameters as the initial parameters. For this reason, a Dual-Mode Self-Tuning PID controller is designed, the controller can adjust the Kp, Ki, Kd with different initial value at the different workplace. After simulating with the MATLAB and AMESIM .We find it improves the dynamic property and stable-state property in the natural gas output system effectively. There are practical significance and theoretical reference for the improvement of non-linear industrial control system dynamic behavior.