bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Application of Corn-Diesel Fuels in the Diesel Engine
Authors: Li Hui Fen , Chen Guo Dong
Published: September 2013

This test was operated on a s195 diesel engine. The test results showed that the corn-diesel fuels were quite good at the specific property of dissolution and low temperatures flow.They could be used as fuel on diesel engine.The fuel consumption rates of corn-diesel fuels were higher than pure diesel fuels. But with the increase of load,the gap dicreased.The corn-diesel fuels couldn't improve CO and HC emissions,but they were good at emissions of NOx and soot. Furthermore, in most of the conditions, NOx emissions of the corn-diesel fuels were lower than the pure diesel fuels, and Small proportion of the corn-diesel fuels were good. Soot emissions of the corn-diesel fuels were lower than the pure diesel,as proportion of the corn oils increased, Soot emissions were lower.
Research on Incentive Mechanism of Green Building Development
Authors: Deng Jian Xun , Hu Wei
Published: September 2013

Based on abroad experience of green building development, paper intends to set up a government, enterprises and users tripartite win-win effective incentive mechanism of green building development according to national conditions, and put forward some suggestions of China green building development, such as economic encouragement, policy support, preferential tax.
Relationship between Dollar Exchange Rate, Monetary Liquidity and International Oil Price
Authors: Lan Lan , He Qing , Liu Qiang , Zhao Xiao Tong
Published: September 2013

This paper provides an analysis on three variables based on observation and experiment: Brent oil prices, the dollar exchange rate and the dollar liquidity (M2), and verifies their interactions relations. The analysis shows that the Granger reason of Brent oil price is the dollar exchange rate and extends the Krugmans achievement. The concept of dollar liquidity (M2) illustrates the important role of oil price in global economic system. China should guide the oil price to a reasonable interval by making full use of the top of oil consumption status in the world.
Preparation and Properties of Multi-Layer Composite Paperboard
Authors: Liu Quan Xiao , Li Dan Xi , Ma Fei , Chen Chang Qing , Yang Jun
Published: September 2013

In order to study the preparation and property of the multi layer composite paperboard, bleached wheat straw pulp, bleached chemical thermal mechanical pulp and waste newsprint pulp are used as raw materials to making paperboard. The results show that the bonding force between fibers of grasses chemical pulp is strong which can improve the bonding strength between the layers. Bleached wheat straw pulp is used as outer layer and waste news paper pulp is used as inner layer to make composite paperboard has high physical properties. Bleached chemical thermal mechanical pulp fiber is shorter, so paperboard tightness and physical strength reduce, which can be used as the lining of the multi layer composite paperboard to improve the stiffness of the paperboard and reduce the cost.
The Influence of GGG70L Laser Surface Hardening Power on Quenched Layer Performance
Authors: Li Yun Tao , Jin Fei Xiang , Wang Ning Xu , Chang Qing , Liu De Yu
Published: September 2013

GGG70L die material laser phase change hardening aims to discover the Quenched Layer performance of the GGG70L die material hardened by the laser of different power. Making comparison and analysis in the experiment and considering the actual production factors such as cost, working efficiency and product quality standard, it is concluded that laser power being 1900 w, laser scanning speed 6mm/s, spot size 3×15 mm2, focal length being 305mm, the surface of the material quality can meet the requirements of industrial production, laser surface quenched layer becomes harder, good abrasion resistance on the surface of the material is obtained.
The Craftwork Analysis of Centrifugal Pouring for Copper-Lead Alloy Bearing Shell
Authors: Xu Shao Hua , Zeng Li
Published: September 2013

This article analyzes the common defects of centrifugal pouring for copper-lead alloy bearing shell, studies the craftwork of centrifugal pouring, discusses the control of pouring temperature, the choice of pouring speed, the control of cooling speed. The research has achieved great results, and effectively reduced the generation of defects.
Prediction of Cutting Force of Austempered Ductile Iron Based on BP Neural Network
Authors: Cao Deng , Guo Xu Hong
Published: September 2013

Austempered Ductile Iron (ADI) is a new generation of cast iron materials developed in recent decades; but its excellent comprehensive mechanical properties make it become hard-machining material. The main objective of this paper is to develop the prediction model of cutting force of ADI based on the BP neural network. The main factors that affect the prediction of cutting force were analyzed with experimental data. The structure of BP neural network and the reasonable training function were determined when experimental data was used to develop the prediction model of cutting force. Prediction error was between ± 4% when the prediction model was used to predict cutting force. The approach to the prediction of cutting force based on BP neural network is valuable for application.
Precision Grinding Process Design of Twin-Screw Compressor Rotor
Authors: Zhao Yong Qiang , Zhao Sheng Dun , Hou Hong Ling
Published: September 2013

With the accuracy improvement of twin-screw compressor rotor machining, higher requirement of crew rotor grinded equipment and grinding process is put forward. Based the theory of screw grinding and CNC forming grinding wheel dress technology, the relationship between machine working parameters, CNC grinding wheel dressing parameters and screw rotor grinded process parameters are investigated, and the relationship between CNC grinding wheel dressing parameters and the screw rotor grinded process parameters is established, and its formulas are presented to describe the distances between grinding wheel axis and screw rotor axis. Through these formulas, the CNC wheel dressing program could be designed easily, the performance and efficiency of machine would be improved, and especially the machining quality of screw rotor would be enhanced and becomes more stability.
Formation of the Stress Field in the Vicinity of a Single Defect under Shock (Impulse) Loading
Authors: Polonik Marina Vasilyevna , Murashkin Evgenii Valeryevich
Published: September 2013

The formation of residual stresses in the vicinity of a single defect of continuity in the process of intense impulse loading surface with considerable distance from the defect is examined. Modeling is carried out within the framework of large elastic-plastic deformation. In the vicinity of the defect there is level of stress, leading to its elimination.
Measurement of the Oxide Film on Cold Rolled Steel by XPS and TEM
Authors: Lee Sang Yong
Published: September 2013

X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (TEM) with high annular dark-field (HAADF) microscopy have been used to characterize the nanoscale oxide film formed naturally on the surface of cold-rolled sheet of mild steel. Main aim of this research was to confirm that XPS could be used in determining the thickness of thin oxide film as a substitute for the laborious TEM analysis. The preparation and analysis technique for the XPS depth profiling has been investigated to characterize the oxide film. The selection of appropriate sputter rate and sputter area according to sheet material components and the exact estimation of sputter depth from sputter rate during depth profiling were essential for the determination of the nanoscale oxide thickness.
Net-Shape Forming of a Roof Joint Node by Thixoforming of A357 Aluminum Alloy for a Low Speed Electric Vehicle
Authors: Lee Sang Yong
Published: September 2013

In the present study, process developments for net-shape forming of aluminum roof joint node have been described. These joint node parts were designed for low speed electric vehicles of which operating condition is more moderate than general compact cars. Thixoforming of Al-7%Si-0.5%Mg (A357) alloy has been applied to the net-shape forming of a complex roof joint node to support aluminum space frame structure of low speed electric vehicle. Optimum heating temperature for the A357 billet was between 580 and 585°C corresponding to the semi-solid temperatures showing 20-30% of liquid fraction. An injection speed of around 100mm/s and preheating of die at temperatures of 200~250°C were also necessary conditions to obtain reasonable thixoformed parts.
Microstructure and Properties of Dissimilar Metals Welded Joint of New Tamping Tine Steel for Railways Maintenance
Authors: Zhao Yan Jun , Hu Zhi Liu , Mi Li , Ren Xue Ping , Liu Sheng Xu
Published: September 2013

The microstructure and mechanical properties of welded joint between 20SiMn3NiA and 40CrNiMo were studied by carbon-dioxide arc welding. According to the principle of low strength matching of dissimilar metals weld, the strength of the welded joint is 60% of that of 20SiMn3NiA, and the impact toughness reaches 60% of parent metal’s toughness. Also the impact ductility is high enough to meet the applications of divided structure tamping tine when the strength of welded joint is properly lower than that of 20SiMn3NiA. Furthermore the performances of fusion zone are worse than welded joint and heat-affected zone for martensitic brittle layer was formed during the welding of 20SiMn3NiA and 40CrNiMo.
Thermo-Mechanical Modelling of Friction Stir Welding Process
Authors: He Xiao Cong
Published: September 2013

Friction stir welding (FSW) is a solid-state welding process where no gross melting of the material being welded takes place. Numerical modelling of the FSW process can provide realistic prediction of the thermo-mechanical behaviour of the process. Latest literature relating to finite element analysis (FEA) of thermo-mechanical behaviour of FSW process is reviewed in this paper. The recent development in thermo-mechanical modelling of FSW process is described with particular reference to two major factors that influence the performance of FSW joints: material flow and temperature distribution. The main thermo-mechanical modelling used in FSW process are discussed and illustrated with brief case studies from the literature.
A New Grinding Heat Flux Distribution Developed by Theoretical Derivation
Authors: Jing Yan , Fang Qang Han
Published: September 2013

Heat flux distribution has an important influence on grinding thermal field, therefore an accurate heat flux distribution model must be established in order to precisely simulate the grinding process. A new heat flux distribution model was developed by theoretical derivation in this paper. In order to simulate the transient grinding thermal field, finite element models were created, applied with the new, uniform and triangular heat flux models respectively. Comparisons between the distributions of temperatures and temperature histories calculated from numerical simulations using the three different models were also made in this paper.
Research on Old Asphalt and the Regeneration Agent Compatibility Test
Authors: Li Yu Mei
Published: September 2013

The key to recycling of old asphalt mixture is waste asphalt recycle, three regenerants were used as modifiers for old asphalt mortars, three major indexes and rotary viscosity after mixing it with waste asphalt recycle and measured, and simulating a transfer of the old asphalt mortars, then which evaluate on compatibility of the old asphalt and regenerant, to provide reference basis for the choice of regenerant.
Load Distribution Optimization of Tandem Cold Mill Based on Quantum Chaos Multi-Objective Evolutionary Algorithm
Authors: Jiang Wan Lu , Zhang Sheng , He Jin Na
Published: September 2013

A novel quantum multi-objective evolutionary algorithm is proposed that combine the quantum computing with multi-objective evolutionary algorithm, and the quantum chromosomes is updated with the chaos in order to enhance the optimization capability of the quantum population. To verify the performance of the proposed algorithm, the functions ZDT1 and ZDT2 are optimized by the proposed algorithm and NSGA-II. The results show that the quantum chaos multi-objective evolutionary algorithm has the more powerful capability. The new proposed algorithm is applied to the load distribution optimization of tandem cold mill, and the two-objective function modal is built based on the minimum energy consumption and rolling force equilibrium. Optimizing the modal with the new algorithm, the empirical data and method of weighting, the result of quantum chaos multi-objective evolutionary algorithm is more reasonable. Therefore, the quantum chaos multi-objective evolutionary algorithm is a practicable intelligent optimization method for the load distribution optimization of tandem cold mill.
Fracture Accident Analysis of Drill Pipe Friction Welding Joints
Authors: Huang Zhi Gang , Shi Zhi Qiang
Published: September 2013

he macro fracture of broken drill pipe friction welded joints and characterizations of microstructure were performed by SEM and XRD, and tested its hardness. The results suggested that the large area of “gray leaf spot” (composition: Fe3O4) which is on friction welded joints is the main reason causing the drill pipe brittle fracture. In order to avoid excessive “gray leaf spot” defects during the friction welding, put forward practical recommendations.
Lightweight Material: Aluminium High Silicon Alloys in the Automotive Industry
Authors: Alshmri F.
Published: September 2013

Al-high Si alloys are well known for their use as lightweight components in engineering applications, particularly within the automotive industries, due to their high wear resistance and low thermal expansion. It is desirable to increase the hot strength of these alloys by increasing the Si content. In this work, I have concentrated on the use of Al-high Si alloys for land vehicles. The automobile, engine components, the piston engine, four-stroke cycle and Al-high Si alloys in automotive applications will be discussed in this paper.
Study on Application of Hydrated Calcium Silicate in Paper from Wheat Straw Pulp
Authors: Liu Quan Xiao , Yin Yan Nan , Xu Wen Cai
Published: September 2013

The application of hydrated calcium silicate as filler in paper from wheat straw pulp is studied in this paper. It shows that that with the increase of dosage of hydrated calcium silicate, the stiffness of paper improves, and the whiteness and the printing color density of paper improve, but the tightness and tensile strength of paper decrease. When the dosage of CPAM is 0.45 g/kg, the tightness, tensile strength, tearing index, whiteness and printing color density reach the large value. Paper ash content increased with the increase of amount of hydrated calcium silicate, but paper ash gains is not big after the dosage of hydrated calcium silicate reaches 20%.
Developing the Yarn-Dyed Poplin Shirt Fabric with High-Count and High-Density and Softness by Using Water-Soluble Fiber
Authors: Zhu Yong Zhi
Published: September 2013

This paper expatiates to assist high-count yarn in the use of water-soluble yarn, and then to dissolve the water-soluble fiber of the poplin grey fabric, and to get the yarn-dyed poplin shirt fabric with high-count and high-density and softness. It presents a technology process of assisting 100s cotton yarns to produce the yarn-dyed poplin shirt fabric design with high-count and high-density and softness by using 100s water-soluble yarns.
The Design and Production of Bamboo Pulp Silver Fiber/Cotton Antibacterial Fabric
Authors: Zhu Yong Zhi
Published: September 2013

Through wetting pretreatment of the bamboo silver fiber, taking light ration, slow speed, large twist, and other feasible process configuration and technology measures, making the yarn quality reach a better level; optimizing spinning process, sizing formula, sizing process and weaving process to improve the weaving efficiency and improve the fabric style. It successfully developed the cotton-blended antibacterial functional fabrics of the bamboo pulp silver fiber.
Design of a Testing System for Strength of Ceramic Sintering
Authors: Pan Hu Di , Pan Shu Hua , Chen Da Guo , Weng Di Feng , Lin Ling Ling
Published: September 2013

A testing system of the strength of the ceramic sintering which can achieve a 20Mpa testing liquid pressure is presented in this paper. The system is in accordance with IEC60335-1:2006 Safety household and similar electrical appliance Part 1: General requirement ". The experiments show that the system can resolve the security issues of high pressure and explosive liquid in the test process.
Design of Artificial Hip Joint by Carbon/PEEK Composites
Authors: Kim Yun Hae , Yoon Sung Won , Jung Min Kyo , Ha Jin Cheol , Murakami Ri Ichi
Published: September 2013

The purpose of this study is to determine the correct estimation of the various designs for artificial hip joint of the Carbon/PEEK composites. Validity of the study has been tested with the alternative materials for the metal-based materials for artificial hip joint. Moreover, this work evaluated the FEA according to the fiber ply orientation and the condition of load. The stem shape of two kinds was designed through the normal shape of the femur. Three load cases of 1kN, 2.5kN and 5kN were used for each of FEA model. In the case of general shape, the results by ply configuration showed that the stress of ply configuration I was lower compared to ply configuration II and III. On the other hand, in the case of curved shape, ply configuration II were lower compared to ply configuration I and III. The result was checked that the stress of curved shape was higher than that of the general shape in the load of 2.5kN. It could be confirmed then that a similar phenomenon would occur in the condition of 5kN load. However, in the case of ply configuration II, the stress of the curved shape was lower than the stress of the general shape.
A Balancing Mechanism for an Anthropomorphic Robot
Authors: Quaglia Giuseppe , Yin Zhe
Published: September 2013

This paper shows an approach to statically balance an anthropomorphic robot with two degrees of freedom (DOF). Energy transfer is introduced to illustrate the way energy exchanged between the robot and a proposed balancing system. The balancing system, which consists of pulley, belt, cross mechanism and spring accumulators, is designed to balance the linkages of the robot. Two solutions for spring and accumulators are explained as pneumatic and hydro-pneumatic way. Perfectly static balancing is realized with the balancing system. The balanced robot has a wide workspace and an adjustable payload according to different industrial tasks.
Microwave PDC Drill Bit
Authors: Wang Zong Gang , Wei Zhen , Han Lai Ju
Published: September 2013

On the rotary drilling system, the technologies for fracturing and cutting hard rock are mainly mechanical rock breaking methods by use of improving bottomhole water horse power and bit energy, and the working life and rock breaking efficiency have much room for improvement. Microwave crag broken is a thermal assisted rock breaking method which could melt rocks. Microwave assisted rock breaking method will not bring new impact, wear and tear, instead, the microwave pretreatment on the rock reduces the difficulty of breaking rock and prolongs the service life of the drill bit. Under the combined action of microwave heat and mechanical energy of PDC bit, the rock breaking efficiency is improved greatly, and the drilling cost is reduced significantly.
Application and Development of Ship Welding Material
Authors: Yan Run , Wang Jian , Zheng Wei Gang
Published: September 2013

With the development of the international shipping market and the expansion of the market demand, the ship welding plays an increasingly important role. This paper comprehensively introduces the properties of ship welding materials, its application status, inadequacies and development prospects in the shipbuilding industry. High-quality welding has been widely used in the ship construction, coupled with the steady increase in the welding efficiency and quality. The ship welding materials ensure the multiple requirements of ship operation, which implies that it will be more widely used in the shipbuilding industry.
The Introduction of COREX Process Development
Authors: Zhou Xiao Lei , Du Zhong Ning
Published: September 2013

The background and history of COREX smelting reduction was introduced. And the technological process was provided, including the main chemical reactions in COREX process. According to the operating state, COREX process characteristics and development direction were summarized.
Automated Technology Research on Fully Mechanized Mining of Thin Coal Seams
Authors: Zhang Bu Qin , Li An Qi
Published: September 2013

Research on automation technology of thin coal seam based on the specific conditions of Xuecun mine achieves mechanization and automation of coal mining processes; coal or rock identification monitoring based on reliable video technology; remote control to adjust the guidance of surface operations and memory automatically cutting unmanned management of the coal face.
Study on Speed Control Method
Authors: Han Teng , Fan Yu Jin , Wang Wei Da , Li Ai Ran , Zhou Wei , Qin Zhong Quan
Published: September 2013

In modern control, speed control is particularly important. Through the speed control of motors, motor performance boost, marked improvement in the efficiency and extended service life of the motor. This article separately studied on speed control, running speed control and acceleration and deceleration control. There is an in-depth analysis of specific forms and theoretical derivation in the speed control process, and the aspects needed to pay attention to that during the application process.
Research and Application of Self-Tuning Control System Platform
Authors: Zhang Yin Juan
Published: September 2013

Studying the network communication between virtual instrument and MATLAB software, the multi-step lag self-tuning control system platform is established in LabVIEW compiler environment. The man-machine interface of self-tuning control system platform is built in LabVIEW, and the control strategy and algorithm is compiled in MATLAB software. Using the MATLAB-SCRIPT, the communication is established between LabVIEW software and MATLAB to data exchange. The experiment result of self-tuning control system platform show that the system has advantages of flexibility and reliability, which enhance the awareness of science and engineering design system for students, technicians and researcher.
Design of Flight Test System Based on 1553B-Bus Real-Time Processing System
Authors: Zhang Yan Lian
Published: September 2013

To satisfy the special requirement of Real-time Processing for 1553B-Bus in large-scale ground experimentation of airborne weapon, the design and realization of 1553B-Bus communication board based on USB-interface and Real-time Processing soft for 1553B-Bus are proposed. The high performance fixed point MSC1210Y5 and the Advanced Communication Engine (ACE) BU-61580 are all used in the design of hardware. The function of logical control is implemented by FPGA. The system achieves data acquisition and real-time processing of 1553B-Bus in ground experimentation; the experiment shows that the system achieves the desired design requirement of experiment testing.
Study on Recognition Method of Ferrographic Debris Based on Neural Network
Authors: Cao Ya Bin
Published: September 2013

A new method is proposed in which three images of the same field of view under different lighting conditions were analysed comprehensively. On the basis of pretreatment of debris digital image and extraction of characteristic parameter of debrises, the debrises were recognized by establishing the BP neural network model. The results showed that the recognition accuracy of debrises could reach 85.6% with this method.
The Design of Pigeonry Environment Monitoring System Based on ZigBee
Authors: Wang Xiao Fang , Zhou Jian Jun , Wang Xiu , Wu Pinghui
Published: September 2013

The pigeonry environment monitoring system based on ZigBee wireless network which was designed and developed consists of three main parts: the data acquisition module, the central node and the environment monitoring software. In this system, the data acquisition controller is mainly composed of ZigBee wireless acquisition module, air temperature and humidity sensor, dust concentration sensor and light sensor, the controller can collect pigeonry environmental information and receive PC instruction from the host computer. The central node uses a wireless data transmission module which is as the information transmission channel between the host computer and the data acquisition module. The environment monitoring software is as a man-machine interface, which was developed based on C#, and the storage of information collected is achieved by SQL Server. After the test and experiment, the results show that the pigeonry environment data acquisition controller can regularly collect environmental information and submit data information to the monitoring center, thus achieving the remote wireless control of monitoring center. The pigeonry environment monitoring software is able to display and record the collected and transmitted data, also achieve the remote control of the pigeonry environment.
A Survey on Coverage Control Technology in Wireless Sensor Network
Authors: Qian Kai Guo , Mui Li , Zuo Tian Ma , Xu Zhi Qiang
Published: September 2013

Deployment and coverage, studied how to effectively place and control of sensor nodes and to make WSN covered the monitoring area with the purpose of minimum the energy consumption and prolonging the network life cycle under the premise of guarantee the quality of service (QOS),are the primary problems for construction wireless sensor network. This paper analyzes important factors for resolve the coverage problem such as sensing models and deployment way, followed survey the state-of-the art coverage contro1 techniques and presents an overview and analysis of the solution proposed in recent research literature, Further research directions are pointed out in the end.
An Improved Fast Algorithm of Spacecraft Separation Distance Calculation
Authors: Hao Zi Long , Liu Xin Jian
Published: September 2013

A faster algorithm for calculating the shortest distance between two spatial bodies based on existing algorithms was presented. A simulation analysis of missile models separation process was built by using this algorithm. The simulation proved that this algorithm has the same precision and faster speed compared with other existing algorithms.
Survey of Support Vector Machine in the Processing of Remote Sensing Image
Authors: Li Su , Wang Wen Chao , Li Lu Wen , Zhou Jian Jun
Published: September 2013

Support vector machine is a kind of machine learning algorithm which is based on statistical learning theory and VC dimension theory and structural risk minimization principle, it can solve data classification and regression problems. With the in-depth research of support vector machine, in the field of remote sensing image processing applications are also obtained the very big development. This paper first gives a brief introduction of the theory of support vector machine, and then summarized the progress in remote sensing image compression, geometric correction of remote sensing images, processing of remote sensing image data classification research, finally proposed the trend of the support vector machine in application and development in the field of remote sensing image processing problems.
Optimization Analysis for Key Component of a Precision Optical Aspheric Grinding Machine
Authors: Yang Shu Ming , Xu Yu Kun , Yang Lin , Liu Shi Long , Zhao Hui Ying , Long Xing Yuan , Jiang Zhuang De
Published: September 2013

Manufacture of ultra-precision micro-structured freeform surface relies on the high precision of machine tools. Precision, stability and repeatability of the Z-axis are the key factors of the high precision machine tools. The key component of the Z-axis is the ram, and its stiffness and stability have a crucial influence on the final precision. This paper demonstrated the structure optimization of the ram using finite element method based on ANSYS and the results were achieved to illustrate how the optimization variables affect the stiffness and deformation of the ram. Finally, the local three optimal design points were displayed and one of the most appropriate candidate points was chosen as the new design.
Study on Crane Structural Health Monitoring and Early Warning Expert System
Authors: Huang Guo Jian , Wang Dong Hui , Wang Xin Hua , He Zhen Yu
Published: September 2013

Based on current research basis at home and abroad, in order to improve the level of safety technology and safeguard work efficiency, Internet of Things is brought into crane structural health monitoring. Crane structural health risk level evaluation criteria and structural health warning technology expert system are the two key aspects of the project. The mechanical properties of Q235 were studied and theoretical calculations were done by the technologies of ANSYS and ADAMS, finally the threshold was determined. Signals are collected by FBG sensors and transmitted to a demodulator, and then use software calculates the real-time stress by a formula we given in. Finally the real-time stress in different parts of the crane is acquired. If the real-time stress exceeds the allowable stress we set, it issues an alarm signal to the operators.
Research on Feature Extraction Method for Handwritten Chinese Character Recognition Based on Supervised Independent Component Analysis
Authors: Liu Ze Min , He Zhi Guo , Cao Yu Dong
Published: September 2013

Feature extraction is very difficult for handwritten Chinese character because of large Chinese characters set, complex structure and very large shape variations. The recognition rate by currently used feature extraction methods is far from the requirements of the people. For this problem, a new supervised independent component analysis (SICA) algorithm based on J-divergence entropy is proposed for feature extraction, which can measure the difference between different categories. The scheme takes full advantage of good extraction local features capability and powerful capability to handle data with non-Gaussian distribution by ICA, and the extracted feature component and classification can be tightly combined. The experiments show that the feature extraction method based on SICA is superior to that of gradient-based and that of ICA.
Residential Extraction Based on Joint Feature of Spectrum and Spatial
Authors: Wang Fan , Zhang Zhan Mu , Liang Jian , Hu Guo Hua
Published: September 2013

A extraction method of joint feature in spectrum/spatial is proposed for multispectral images. By using a feature vector contains both spectral and texture attributes in spatial, the residential integrated spectral and texture information could be extracted with SRG method. The results implicate the better effect of this method in the residential extraction.
Design and Analysis of a Novel Capacitive RF MEMS Switch with Folded Beam
Authors: Deng Zhong Liang , Fan Sen , Chen Cai Hu , Gong Hua
Published: September 2013

In this paper, the design, optimization and equivalent circuit model for a K-band capacitive RF MEMS switch are presented. The fixed-ﬁxed switch is designed with folded structures on the high-resistance silicon substrate, by using gold as the beam and silicon nitride as the dielectric layer. The resulting switch working on 25.2GHz exhibits the performance with insertion loss less than 0.20dB, isolation more than 40dB and the drive voltage less than 16V by simulation.
Spreading of Partially Coherent Sinh-Gaussian Beams in Slant Atmospheric Turbulence
Authors: Duan Mei Ling , Li Jin Hong , Wei Ji Lin
Published: September 2013

Based on the extended Huygens-Fresnel principle, taking the partially coherent sinh-Gaussian (ShG) beam as a typical example of partially coherent beams, the analytical expressions for the root mean square width and angular spread of partially coherent ShG beams in atmospheric turbulence along a slant path are derived, and used to study the influence of propagation path on the propagation of partially coherent ShG beams in atmospheric turbulence. It is shown that the spreading of partially coherent ShG beams along a horizontal path is larger than that along a slant path in atmospheric propagation. The influence of atmospheric turbulence along a slant path on the partially coherent ShG beams propagation is smaller than that along a horizontal path. Therefore, the slant path is more beneficial to the beam propagation through atmospheric turbulence in comparison with the horizontal propagation. The validity of our results is interpreted physically. Results in this paper may provide potential applications in free-space optical communications.
Convolutive Blind Separation Using Domino Effect Relevance Ranking
Authors: Xu Peng Fei
Published: September 2013

Based on the discovery that there is a good amplitude correlation between neighbour bins of non-stationary signals, we presented a new blind source separation method using Domino Effect relevance ranking that can eliminate the permutation indeterminacy. Since there is no complicated mathematic derivation in this method, it is relatively simple in theory. Furthermore, the outcome of simulation experiments confirmed its validity in blind source separation of communication signals such as QPSK signal. In addition, this method is robust and time saving.
Performance of MIMO and 64QAM Application in HSPA+ System
Authors: Li Yong , Li Jie
Published: September 2013

High speed packet access (HSPA) was introduced as the evolution of WCDMA system in 3GPP Rel 5 and 6 for downlink and for uplink. Moreover, HSPA+ Rel 7 makes WCDMA more competitive which adopted multi-input multi-output (MIMO) to support two blocks of data in a TTI and 64QAM for modulation to increase the peak rate. In HSPA+ Rel 8, combination of MIMO and 64QAM can further enhance the data rate in the good channel condition. Theoretically, the terminal can support the maximum downlink data rate of about 42Mbps.
Effects of the Internal Structure of H Boolean Functions on Algebraic Immunity and Algebraic Degree
Authors: Huang Jing Lian , Yuan Xiu Juan , Wang Jian Hua
Published: September 2013

We go deep into the internal structure of the Boolean functions values, and study the relationship of algebraic immunity and algebraic degree of Boolean functions with the Hamming weight with the diffusion included. Then we get some theorems which relevance together algebraic immunity, annihilators and algebraic degree of H Boolean functions by the e-derivative which is a part of the H Boolean function. Besides, we also get the results that algebraic immunity and algebraic degree of Boolean functions can be linked together by the e-derivative of H Boolean functions and so on.
A Spatial Resource Top-K Query Algorithm in Cyber Physical System
Authors: Ma Wu Bin , Liu Ming Xing , Deng Su , Huang Hong Bin
Published: September 2013

Cyber physical system (CPS) mainly means that the conjoining of information and physical resources. The physical elements, which could be treated as spatial resources, need be queried through information field. The key problem is how to construct spatial resource index structure and accordingly retrieving algorithm. The spatial retrieving algorithm is widely used in the Internet and moving object. The traditional spatial resource retrieving algorithms ignore the uncertain factor of the spatial resource, which is the important feature of the military resource network. This paper use an index structure named BIR-tree, based on the belief of resource, we also propose corresponding efficient and accurate top-k retrieving algorithm. On the base of traditional IR-tree, we define the resource and regional belief aiming at special spatial environment. The results of our empirical studies with an implementation of the proposed algorithm show it is capable of excellent performance.
Using the Pairing Function for Distributed Access Control in Cloud Computing
Authors: Wan Chang Sheng , Zhang Juan , Zhou Lin , Qin Zhong Yuan
Published: September 2013

Access control has vital significance in cloud computing, where data files are stored in the cloud server. In current schemes, the cloud server typically needs to consult the backend authorization server, when processing access control request from data users. This will put a heavy burden on the authorization server, and therefore introduce Denial-of-Service attack on it. To address this issue, this paper models the access control requirement in cloud computing, and designs a distributed access control scheme. Its security features and efficiency are analyzed. The results show that our scheme is quite improved, because it separates the authorization process from the access control process, and releases the authorization server from the access control process. By doing so, the burden on the authorization server is reduced, and the Denial-of-Service attacks on it during access control process are avoided.
Marketing Model Investigation of Cable Television Service Based on BP Neural Network and Decision Tree
Authors: Liu Bing Xiang , Wu Xu Dong , Li Ying Xi , Wang Xie Wei
Published: September 2013

This paper takes more than four hundred records of some cable television system for example, makes data mining according to users data record, uses BP neural network and decision tree method respectively to have model building and finds the best model fits for users to order press service. The results of the experiment validate the methods feasibility and validity.
Research and Application of OPC Network Communication in Configuration Software
Authors: Zhang Yin Juan
Published: September 2013

The network communication between MATLAB and configuration software is established using OPC (OLE for Process Control) technology, which is easily to give full play to generate interactive interface in configuration software and simulation of control object model in MATLAB software. The calculation function of weakness in configuration software is repaired and the control object model and controller is to be isolated. The effective simulation platform for theory research and design of control system is established.
Overlapping Raindrop Particle Image Segmentation Algorithm Based on Boundary Geometrical Characteristics
Authors: Yue Xiao Feng , Liu Xiao Wan , Wang Ping Kai
Published: September 2013

A method of image segmentation based on boundary geometrical characteristics is proposed to solve the problem of the low contrast and difficulty contour concavity, and different matching rules are given by comparing the numbers of inflexions with the numbers of particle image. Segmentation lines are drawn based on Bresenham algorithm and overlapping particle image are separated by connecting the candidate inflexions. The algorithm is simple and effective, while the results meet the requirements.
The Exponent Set of a Class of Two-Colored Digraphs with One Common Vertex
Authors: Luo Mei Jin
Published: September 2013

A two-colored directed digraph D is primitive if and only if there exist nonnegative integers h and k with h+k>0 such that for each pair (i,j) of vertices there is a (h,k)-walk in D from i to j. The exponent of the primitive two-colored digraph D is defined to be the smallest value of h+k over all suchand . With the knowledge of graph theory, a class of two-colored digraphs with two cycles whose uncolored digraph has 3n vertices and consists of one (2n+1)-cycle and one n-cycle is considered.The exponent bound, exponent set and characteristic of extral two-colored digraphs are given.
A Genetic Algorithm Enhanced by Tabu Search for the Single Machine Scheduling Problem with Deteriorating Jobs
Authors: Liu Yue Yue , Zhang Rui
Published: September 2013

This paper considers a single machine scheduling problem with deterioration and no inserted idle times. Each job has a due date, a weight and a processing time. The objective is to find an optimal sequence of the set of jobs to minimize the total weighted tardiness. To prevent premature convergence of the optimization algorithm, a genetic tabu search (GTS) algorithm is presented. In the GTS, the mutation operator is implemented with the tabu search method to enhance the local search ability. A fair comparison of genetic operators has been made between GTS and simple GA, and the experimental results show that the GTS considerably outperforms the simple GA.
Grey-Hierarchy Relation Analysis and Evaluation of Port Operating Ability
Authors: Xie Xian Fen , Wang Bin Hui
Published: September 2013

Throughput and berths capacity are two important measures of port operating ability. Based on these two aspects, this paper established port operating index system for Guangdong Province, and made comprehensive evaluation and analysis on 11 large-scale ports in Guangdong. During the evaluation process, the AHP and Gray Incidence Analysis (GIA) methods are combined to exploratory analysis on the port operating ability and development emphasis of each port. The results show that the ranking of throughput aspect or berth capacity are inconsistent with comprehensive ranking result, that is, obvious differences exist between these 11 ports and each of them have their own development priorities, which is reasonable, realistic and in line with the actual situation in Guangdong Province.
Research on Reverse Engineering for Blades of Axial Compressors with Laser Scanner
Authors: Song Wei , Lai Xi De , Li Guang Fu , Zhang Wei , Chen Xiao Ming , Lu Zhen
Published: September 2013

To acquire the digital model of axial compressors on the actual projects, a Reverse Engineering procedure of the blade was developed based on point cloud data acquired with the handy laser scanner. For meeting the requirements of geometric characteristics and aerodynamic optimization design and improving acquiring efficiency of point cloud data, the laser triangulation was employed and auxiliary plane and mark points were put on the inlet, outlet and tip of the blade. For solving the problem of low accuracy of fitting surface on the blade, an interactive dividing method of surface slices which based on the streamline, meridian line, contour and its extension line, was presented, it showed that reconstructed surface model can meet the actual projects needs. A completed set of RE technology for axial compressor blades has been developed, and it has been used in actual project combing with the maintenance of a large axial compressor blade.
A New Method to Optimize Locations of SVC Based on Risk and Static Load Margin
Authors: Zheng Wei , Zhang Long Yue , Liang Fu Bo , Ma Chao , Xing Yan Dong
Published: September 2013

A method was proposed selecting the location of SVC, considering the power system with large wind farms interconnected. The location can be determined by risk index, which comprises credibility and global severity, and static load margin simultaneously. The method could consider the weak links and buses under both fault and normal conditions thus make better contribution to the system security. Case study shows that the correctness and effectiveness of the proposed method, comparing with the usual one.
Rapid Layout Design System Research and Application for Beverage-Packaging Production Line
Authors: Zhang Yong , Zhou Dong Jun , Pan Xiao Hong
Published: September 2013

In order to realize rapid design for Beverage-Packaging production line, a Beverage-Packaging production line rapid layout system framework was constructed, and a Beverage-Packaging production line integrated model framework was proposed. A design process model for Beverage-Packaging production line was studied. Key technologies were discussed, including machine layout location, buffer settings and conveying line calculation, etc. Finally, the proposed theory and technologies were realized in the prototype software system, and the system was applied in a Beverage-Packaging production line manufacturer.
Some Simulation Results on Bullwhip Effect in Supply Chain with Several Dealers
Authors: Woo Shin Sc , Li Ya Hui , Lu Xi Feng , Du Yu Quan
Published: September 2013

In order to discuss the bullwhip effect in the supply chain with several dealers, a four-level supply chain model is developed based on system dynamics. Through the use of dynamic simulation, the bullwhip effect was evaluated based on several factors such as return proportion, direct utilization proportion of recycling products and sales plan of each dealer. Experimental results show that a higher return proportion and a more direct utilization of recycled products can mitigate the bullwhip effect. Moreover, different sales plan of each dealer has various degrees of influence on the bullwhip effect.
The Research on Pricing Customizing Services of Logistics Information Platform
Authors: Ji Shou Wen , Feng Qian , Wang Yu Zheng , Wang Xue Song
Published: September 2013

In recent years, the rapid development of logistics has become the driving force of the construction of Logistics Information Platforms, nevertheless, most of which are still underdeveloped, especially the charging and pricing mechanism of the platform is inadequate. Based on the bargain method of the game theory, this essay will build a pricing model and conduct a three-round bargaining reverse regression calculation towards logistics software customized services, resulting in its optimal pricing strategy. Taking National Transport Logistics Public Information Platform as the analyzing example, this essay provides theoretical support for the optimal pricing strategy of logistics software customized services.
New Design of Supercritical Water Oxidation Reactor for Sewage Sludge Treatment
Authors: Yang Shu , Wang Guang Wei , Xu Yuan Jian
Published: September 2013

The corrosion of reactor and salt precipitation are two critical obstacles that inhibiting the development of supercritical water oxidation (SCWO) in to a viable industrial process. A new design of double wall reactor has been developed in which SCWO reaction take place inside an inner tube (alumina or titanium, micro porous). The high pressure air layer between inner surface of reactor and surface of tube could prevent non-soluble materials, corrosion ingredients and inorganic salt depositing and attaching to inner surface, thus critical problems have been overcome. The new reactor performance was evaluated by processing sewage sludge from BeiBei waste water treatment plant. There were no salt plugging or corrosion observed in reactor after one month operation.
Thermal Analysis of CMT Structure
Authors: Wang Tian , Xu Ping , Liu Xiao Chen , Luo Yong Sheng
Published: September 2013

Normally, after the computer working very long hours under the thermal environment, the components temperature inside the CMT (Convertible Mini Tower) may over the spec. The temperature inside the desktop computer chassis is too high, which affect the normal operation of the equipment. In order to effectively avoid this situation, not changing the installed position of the components inside the computer chassis, the structure design for the internal duct of the computer chassis and the thermodynamic analysis can be done by Icepak. Then the optimization of the model can be accomplished. The results show that the design can effectively reduce the temperature inside the computer chassis. It can also ensure the stable operation of the equipment.