bluuebunny/crossref_metadata_2025 huggingface dataset:
The Design and Development of Apparel Fabric in Thin Jacquard Trim Process
Authors: Jiang Peng Xiao , Wang Yu Jue , He Rong , Zhang San Xing , Wang Zhe Feng , Zhang Hong Xia
Published: September 2014

In modern society,apparel has become an essential article of utility and art supplies of human life.The paper will be developed thin fabric as a starting point, from graphic design, color matching, expand exploration and research materials materials, production processes, etc., to follow the laws of aesthetics, focusing on the use of jacquard trim process, designed to meet the development trend of clothing jacquard fabric with a thin new products.
Investigation of 4-Methoxysalicylaldehyde Thiosemicarbazone as Inhibitor for Carbon Steel in Sulfuric Acid Solution
Authors: Zhang Hong Hong , Zhang Yan , Yang Zhong Nian
Published: September 2014

The Schiff base 4-methoxysalicylaldehyde thiosemicarbazone (MST) was synthesized and its corrosion inhibition effect on carbon steel in 0.5 M H2SO4 solution was tested via weight loss and electrochemical impedance spectroscopy (EIS) measurements. The results show that MST serves as an effective corrosion inhibitor for carbon steel. The corrosion rate of carbon steel decreases with the increase in concentration of MST. The adsorption of MST on the carbon steel surface conforms to the Langmuir adsorption isotherm.
Comparison Study of PVDF-HMn2O4  and PES-HMn2O4 Membrane-Type Adsorbents for Lithium Adsorption/Desorption
Authors: Yang Shan Shan , Liu Xiong , Shen Jiang Nan , Gao Cong Jie
Published: September 2014

Much attention has been paid to membrane-type lithium adsorbents to overcome the shortages of the leakage of powder, poor permeability and difficult recycle for powder lithium adsorbents. In this work, a series of membrane-type adsorbents of spinel-type manganese oxides were converted from lithium manganese oxide precursor membranes by acid treatment. Precursor membranes were prepared by solvent exchange method using polyvinylidene fluoride (PVDF) and Polyether sulphone (PES) respectively as binders, powder LiMn2O4 as the precursor and N,N-dimethyl acetamide (DMAc) as the solvent. The preparation conditions were investigated by changing the binder and the concentration of powder LiMn2O4. The surfaces and morphology of membrane-type adsorbents were observated by scanning electron microscope. The comparation of the capacities of lithium desorption from precursor and adsorption for membrane-type adsorbents based on different binders shows that PVDF is more suitable to be the binder than PES with liquid film thickness of 0.25mm, and the proper concentration of PVDF and powered LiMn2O4 are respectively 12% and 60%.
The Study of Terahertz Time-Domain Spectroscopy of Benzoyl Peroxide
Authors: Zhou Zhi Long , Chen Xiai , Han Lu , Zhang Qing Hua , Li Xian
Published: September 2014

The spectral characteristics of benzoyl peroxide in the range of 0.3 to 1.6 in THz region is obtained by THz time-domain spectroscopy, the refraction and absorption spectra of benzoyl peroxide is got,meanwhile. The experimental result shows that, the benzoyl peroxide has the absorption peak at the wave band of 0.36621THz,0.498THz,0.92285THz,1.11328THz, the most obvious of which is at the wave band of 0.92285THz.The terahertz absorption spectra of the mixture of flour and benzoyl peroxide is studied at the same time.This experimental study provides a new method to detect benzoyl peroxide illegally added in food.
Classification of Tight Sandstone Reservoir Based on the Conventional Logging
Authors: Xiao Xiao Ling , Cui Jia Li , Zhang Yu Peng , Zhang Xiang , Wu Han
Published: September 2014

With the increasing social demand for oil and gas resources, the exploration and development of unconventional oil and gas reservoirs will pay more and more attention. Tight sandstone reservoir classification is one of the important tasks in the research of unconventional oil and gas exploration and development.Limitations exist in tight sandstone reservoir classification by various conventional logging.A method for the classification of tight sandstone reservoir based on support vector machine is presented in this paper, combining with the core data and flow unit to establish the reservoir classification standard. Tight sandstone reservoirs of no coring wells are classified based on the model made by support vector machine using conventional logging.The application results show that this method has high suitability and identification accuracy.
3D Printing Technology and the Adaptability of Printing Material
Authors: Wang Xiu Chun , Wei Jun , Yi Xi Bin , Zhang Jing , Shang Kai , Wang Qian
Published: September 2014

According to different printing materials, this paper has classified the types of 3D printers, discussed the characteristics and suitable material and application of various types of 3D printing technology, and put forward the future direction. Fund: Natural Science Foundation of Shandong Province (ZR2010EL015)
Comparative Analysis of Crack Growth Characteristics Based on Virtual Crack Closure Technique
Authors: Liu Wen Lin , Yu Da Zhao , Jia Zhong Hu
Published: September 2014

The strain energy rate and the stress intensity factors in different crack growth stage were analyzed by virtual crack closure technique. The user subroutine is complied using Abaqus finite element software. The finite element model of crack growth was established by the Paris formula, then the fatigue crack growth process is simulated, the crack growth life is predicted. The method could be a powerful tool for engineers to study the fracture and fatigue problems in engineering structures.
Current Status and Future Focuses of Typical Pre-Hole Riveting
Authors: Li Wei Jia , Yang Lian Fa
Published: September 2014

In the course of ongoing development of riveting technologies, various methods were developed in the last years. Riveting is one of the most important joining methods. Nowadays, pre-hole riveting methods have been widely used in aviation, automobile and other fields because of its advantages of simple joining process, low cost and light weight. This paper mainly presents several typical pre-hole riveting methods. Their technical characteristics, working principles and research status are introduced. Also, this paper proposes the limitations and future focuses of typical pre-hole riveting methods.
Error Identification and Compensation with Space Gauge in High-Speed Machine Tools
Authors: Meng Xian Hong , An Xiao Dong , Xing Yi Lin , Zeng Guan Nan
Published: September 2014

The ever-increasing demands of very high precision components have forced manufacturers to improve equipment to meet the demand. The main factor is the identification and compensation of errors in machine tools. In this paper, a new real-time method is presented to identify and compensate the error with space gauge, by use of which the composition of errors is directly compensated by measuring the deformation of the points in machine bed. Then, a simple single-axis machine tool is used to determine the relationship of deformation between gauging point and control point to verify the feasibility of the method. Furthermore, due to the simplicity of the implement and, the method can be easily used in an industrial production with minimal investment. Consequently, the result shows the method can be widely applied.
Experimental Study on Friction and Wear Characteristics of Cemented Carbides YG6 with Titanium Alloys
Authors: Sun Yong Hua , Li Shao Hua , Ding Ming Wei
Published: September 2014

The friction and wear characteristics of different cemented carbides YG6 with Ti6Al4V alloys in different loads and speeds are revealed by pin-on-disc rotation, and analyses the wear mechanism, when the system is designed with the tribology theory to guide the development of titanium machining tool material and rational use.
Full Scale Fatigue Experiment on Submarine Pipelines
Authors: Fang Zong Tao , Tang De Yu , Hu Yan Hua , Niu Hu Li
Published: September 2014

This paper focus on fatigue problem of submarine pipelines, four points bending full scale fatigue experiment were conducted on X65 pipelines butt joints specimens, utilizing pipeline full scale fatigue test machine developed by CNPC. Meanwhile contrast test was also carried out on small specimens. The results show that the fatigue strength of full scale welded joints is lower than the small scale joints. Owing to having no regard for the influence of residual stress and size effect, the small test would provide dangerous results. The fatigue property of full scale welded joints only meets the requirement of DNV C203 W3 curve, and meets the needs of DNV C203 F3 curve basically while not meet BS 7608 F2 curve’s requirements which relatively demand higher. Weld toe and geometric discontinuous near weld root is the weak point for the whole welded joints.
Research of Machining Process on 17-4PH Stainless Steel Superfine Deep-Hole Drilling
Authors: Liu Zhan Feng , Wang Han Chen
Published: September 2014

Through the analysis of superfine deep-hole drilling process, we used the combination of gun drill and BTA deep-hole drilling process for 17-4PH (0Cr17Ni4Cu4Nb) stainless steel deep-hole drilling test. We measured wall thickness point by point, and calculated the conversion of the eccentricity in a deviation axis line. Which fully embodies the advantage of this process for stainless steel 17-4PH, and provides a new method in super hardness material deep-hole drilling field.
Research on the Laser Welding Technology of GH4169
Authors: Qi Jia Rui , Wei Hua Kai , Zhang Dan Feng , Han Li
Published: September 2014

Superalloys have a high tensile strength at elevated temperature, a good stability and reliability in a large range of temperatures. Among these superalloys, GH4169 is widely used as thermal components in the turbojet engine. Traditional welding methods are difficult to adapt to the development of high-tech manufacturing. Laser welding plays an important role in superalloys welding field increasingly for its advantages. In this investigation, superalloy GH4169 plate with a thickness of 1mm was welded utilizing the pulsed laser welding and the mechanical properties of the laser welded joints are analyzed. The maximum tensile strength is 928 Mpa, which is close to the base material tensile strength. The welded joint can meet the requirements of users.
Simulation and Experiment Study on Upsetting Process of Crankshaft
Authors: Kang Feng , Yang E Chuan , Chen Qiang , Hu Chuan Kai
Published: September 2014

Aim at the bending and upsetting process of a kind of crankshaft, this paper analyze the technical difficulty and treatment measures during the process. The metal flowing and the defects easily occur during the deformation are visual reappeared by the FEM, moreover, the influence of the thickness of flash and the size of fillet on the quality of crank is also analyzed. Takes the crank as an object, the experiment of bending and upsetting deformation is carried on, which verified the accuracy of the simulation result, and finally, the crank is qualified with fullness deformation, continuous fiber without collapsing or folding. The product with this process can satisfied all the specification of the technology.
Simulation of Subcritical Crack Growth in Dissimilar Weld Joints with Extended Finite Element Method
Authors: Wang Wei Bing , Xue He , Yang Fu Qiang
Published: September 2014

The crack growth behavior in dissimilar weld joints is affected by the mechanical heterogeneity of materials. The subcritical crack growth in dissimilar weld joints was simulated by adopting extended finite element method. The results indicated that the strength mismatch will affected the subcritical crack growth behavior. The growth direction of subcritical crack in material with higher strength will deviate to the interface, and the crack may advance through the interface to material with lower strength if the strength mismatch is critical. The cracks will advance away from the interface if the subcritical crack in soft material.
Structure and Design Research for 200L Extrusion Hollow Blow Molding Machine Head
Authors: Li Wei Min , Huang Jian , Lu Guang Liang
Published: September 2014

On the basis of traditional hollow blow molding machine head, this paper researches the accumulating corner style machine head. This kind of machine head employs double layers and double spiral flow channels which solve the intensity problem of the large scale blow molding machine with single spiral flow channel on the fusion seam area. His paper researched the technological parameter and structure size based on the structural style.
Mechanical Property Comparison Analysis of Two Kinds of Shape Memory Alloy Patella Claws Based on Finite Element Method
Authors: Gong Xiao Yan , Wu Zhe , Du Dong Peng , Xing Juan , Miu Xiang Wen
Published: September 2014

Memory alloy' is a new material that is widely applied for medical equipment. The successful orthopedic repair of severe transverse patella fractures is being advanced through the use of the 'memory alloy patella claw'. We have refined the basic design of this device, by comparing the mechanical properties of patella claws, before and following after refinement of the claw design using finite element model that are simulated by ABAQUS software. When the same load was imposed on each patella claws, under the same boundary conditions, the stress-strain value of anti-shearing force patella claw was smaller. These data indicate that the finite element model demonstrates an efficient way of designing this orthopedic device to produce effective anti-shearing force patella claws, which is of potentially significant benefit to the treatment of patella fractures.
The Study of Stability of Time-Delay Systems in Milling
Authors: Zhang Xiao Guang , Ren Qiu Ping , Du Hong
Published: September 2014

The effect on the stability of the analysis of time lag effect of the milling system，Reveals the root cause of the milling type regenerative chatter occurs，Milling type regenerative chatter is derived from the time-delay feedback within the system，Application of routh criterion and Fourier analysis of chatter in milling system before and after the change of rigidity and damping system, it is concluded that the limit cutting depth.
The Study on Mechanical Modeling and Controlling System of Simulating Milling Force Mechanism
Authors: Shu Qi Lin , Liang Xiao Sen , Wang Jun
Published: September 2014

To design a set of force-applying mechanism, simulate the stresses of workbench in vertical milling process and complete dynamic test of performance parameters by controlling the mechanism on the basis of the research of a testing stand of precision preserve of rolling functional components. This paper establishes a mechanical model to simulate the milling stresses of workbench, and makes use of the principle of the force and moment equal to deduce the functional relationships between the force of mechanism applying and the milling force, makes appropriate transformation according to the working principle of force-applying mechanism; adopt the “PC+NC” NC system architecture and use VB complete programming of the testing stand open NC system based on the multiple axis controller PMAC. Operators can achieve the function of testing stand by the established system interface. In the process of the test of performance parameters by testing stand, the force-applying mechanism applies milling force which could ensure test data accuracy and also save energy.
Laser Prestressed Bending of Titanium Alloy Sheet
Authors: Zhang Yong Chun , Wang Xiu Feng , Wang Xi Bing , Guo Jiang
Published: September 2014

The new method of laser prestressed bending of Titanium alloy sheet is put forward in this paper. Titanium alloy sheet is produced pre-deformation by a clamp, the laser beam with some certain intensity scans its surface along the given path, and it is formed due to the thermal effect of the laser to reduce the yield strength of the scanning area and enhance its plastic deformation ability. A feasibility experiment for Ti-6Al-4V sheet is done and the bending effect is remarkable. Laser prestressed bending mechanism is described and the main influence factors are analyzed.
Mechanics Analysis of Protective Casing and Splicing Sleeve
Authors: Jiang Ming , Qin Jian , Qiu Ya Ping
Published: September 2014

The splicing sleeve is the important part in the transmission line construction. The stresses of the sleeve and its protective casing are analyzed by finite element method over the stringing sheave. Several important positions are investigated in the equipment. Typical situations are selected covering the entire stringing procedure, including horizontal position, 45-degree position and vertical position. Based upon the results, the safety assessment of the protective casing and splicing sleeve is conducted according schemes.
Adsorption of Anticorrosion and Antiwear Additives on Axletree
Authors: Feng Bing , Liu Shuang Hong
Published: September 2014

Experimental investigation of adsorbent was conducted about the anti-corrosion additives on the surface of simulating axletree, testified the existence of physical sorption on the axletree surface through the molar consistency changes of anti-corrosion additives in lubricating oil before and after adsorbent experiments which represented by ultraviolet absorbance. Did adsorbing experiments using the cosmoline dashed with different content of anti-wear additives, found that anti-wear additives could affect the adsorbability between the axletree and anti-corrosion additives through ultraviolet absorbance measurements, the results reflect that the interacting sorption between the two additives on surface of axletree.
Research on the Mechanical Properties and Corrosion Resistance of Mg-RE and Mg-Zn-Cu Alloys
Authors: Xiong Xin Hong , Quan Dun Miao , Chen Jia Lin , Zhang Qiao Xin , Chen Yun
Published: September 2014

Rare earth magnesium alloys and Mg-Zn-Cu alloys were prepared by gravity casting and direct squeezing casting respectively, and the corrosion performances of three kinds of Mg-Zn-Cu alloys were compared in this paper. The results indicate that adding rare earth elements and direct squeezing casting process can significantly increase the mechanical properties of magnesium alloys, and aluminum can improve the corrosion resistance of magnesium alloys.
Recovery of Nickel and Cadmium from the Multi Metal Hazardous Waste Using Hydrometallurgical Method with Thermometallurgy
Authors: Yang Xiu Pei , Jia Zhi Hui , Wang Xiu Hai , Li Gu
Published: September 2014

In this study, recovery of high grade nickel and cadmium products from the multi metal hazardous waste was carried by pyrometallurgical and hydrometallurgical process. Semi-finished products of nickel carbonate and cadmium carbonate were firstly treated from multi metal hazardous waste. Ni-CdO system could be achieved during carbonization in medium temperature reduction. After acid leaching, Cd2+ could be separated from nickel. Then the high grade nickel and CdCO3 products were obtained by smelting and precipitation respectively. The effects of the reducing agent, time, acidity, temperature were investigated. At the optimum conditions, recovery rate of nickel and cadmium is greater than 98%. This process is simple and don't require high temperature, pressure and special complex equipment.
Research on Cathode Chronopotentiograms and Interelectrode Resistance during Vacuum Boiling Electroforming
Authors: Wang Jun Tao , Ming Ping Mei
Published: September 2014

Studies have showed that the electrolyte vacuum boiling electroforming process can significantly improve surface quality and microstructures of the deposited layer. To explore the mechanisms that produce the above-mentioned favorable improvements, this paper focused on analyzing the change characteristics of cathode potential and interelectrode resistance carried out under different process conditions. Research results showed that, reducing vacuum degree or increasing cathode surface temperature result in an intense fluctuation in the cathode chronopotentiometry and interelectrode resistance; decreasing the vacuum degree causes the whole cathode chronopotentiometry to shift negatively, but situation is opposite when the cathode surface temperature rises.
Research on the Abnormal Grain Growth of Goss Grains in Strip-Cast 4.5%Si Grain-Oriented Electrical Steels
Authors: Zhang Yuan Xiang , Fang Feng , Xu Yun Bo , Wang Yang , Lu Xiang , Cao Guang Ming , Li Cheng Gang , Yu Yong Mei
Published: September 2014

In conventional production of grain-oriented electrical steel, the content of silicon is limited to 3.0%~3.4%, which could control the ‘γ→α’ transformation process to obtain fine grain sizes in hot-rolling and disperse AlN particles in normalizing. In this study, the precipitation behaviors of S ans N in 4.5% Si-Fe alloy are inhibited during twin-roll strip casting process. And then the ideal microstructure and texture was obtained after the two-stage cold rolling and primary annealing. The evolution of microstructure and texture during the subsequent high temperature annealing were investigated. The results revealed that a sharp and developed Goss texture has been achieved by secondary recrystallization in the final annealing step and the magnetic induction B8 /Bsis above 1.76/1.90T.
Simulation and Parametric Analysis on the Forging Process of Aluminum Alloy Piston in Automobile Engines
Authors: Cui Ming Tao , Liu Ming
Published: September 2014

Piston forging process is a vital step in the manufacturing of automobile engines. According to the practical piston product in automobile engines, the three-dimensional geometric model of the piston forging is established, and the forging scheme of the aluminum alloy billet and the mold is formulated. Based on the rigid-visco-plastic principle, the finite element numerical simulation for the scheme of piston forging is implemented. The required load of forging equipment and the wear of the mold are obtained by the given temperatures, friction coefficients and forging speeds in their respectively feasible ranges. To facilitate the parametric analysis, simulation data are fitted in curves, which can provide reference for the piston forging and the mold designing in practice.
A Study on the Electroless Ni–P Deposition of AM60B Magnesium Alloy without HF in Bath
Authors: Qiu Jing Dong , Jia Su Qiu
Published: September 2014

Based on the traditional direct electroless nickel methods, chemical baths are improved by removing HF. Examinations have been carried out on the Ni-P deposited on the interlayer for morphology, composition and corrosion-resistance by SEM, EDS, XRD and other instruments. A Ni-P film with fine and dense structure was obtained on the AM60B magnesium alloy. It exhibits lower corrosion current density and more positive corrosion potential than the substrate.
Theoretic Analysis on the Influence of the Press-Brake Manufacturing Precision on the Bending Precision of Sheet-Metal
Authors: Li Qian , Sun Ying , Huang Ying Ya , He Gang , Zhu Deng Lin
Published: September 2014

The bending sheet metal inevitably exist bending errors including angle error, linearity error and length error of sideline for reasons that the structure of press brake, the manufacturing precision of press brake and mould and the inhomogeneous characteristics of processed sheet metal. The processing errors of sheet metal can affect the assemblage, increasing subsequent repair to the mold and forming calibration, extending the product development cycle, restricting the further promotion and application of bending forming, especially on the forming high strength and high spring-back sheet metal. The PBH110-3100 CNC press brake in Jiangsu Yawei Co.Ltd. is studied to increase the bending precision of press brake in this study. The bending errors in press break are analyzed in depth according to the elastic mechanics theory, and the rule that the manufacturing precision of press brake affect the press precision is educed. The analysis results have real significance on improving the press precision and reliability of press brakes.
Application Research on Reflective Insulation Coating Composite Insulation Wall
Authors: Guan Tu Hua , Xu Yuan Bin , Liu Hong Mei , Wu Cheng Qun , Shen Yang
Published: September 2014

Kind of self-insulation walls which combined silt sintered porous brick with reflective insulation coating to local conditions are introduced in this paper. It not only can reach the effect of composite insulation, but also can eliminate fire safety hidden danger of the self-insulation wall. Exterior wall of the summer and winter thermal performance were analyzed, Through its feasibility experiments and is worth a certain region to promote.
Definition of the Overturning and Holding Moments for Floor-by-Floor Leaning Walls Made from Aerated Concrete Blocks
Authors: Gorshkov Alexander S. , Vatin Nikolai , Nemova Darya , Tarasova Darya
Published: September 2014

In article work of a fragment of a wall design from blocks from autoclaved aerated concrete (AAC) is considered at its floor-by-floor leaning on monolithic overlapping of the building with a monolithic ferroconcrete framework and conditions of ensuring stability (not losses) a considered fragment within one floor at action on it the overturning moment from wind loading.
The Electrochemical Behaviors of HSn70-1A Brass in Polluted Freshwater
Authors: Cao Gang , Xia Dong Sheng , Sun Lei
Published: September 2014

The corrosion behaviors of HSn70-1A brass in polluted freshwater were investigated by electrochemical measurements. Results of immersion experiments in eutrophic freshwater and pollution-free water showed that the dissolved oxygen content in the water was a key factor in determining the corrosion rate of HSn70-1A brass. Because the dissolved oxygen content in the polluted freshwater was lower than that in pollution-free freshwater, the corrosion rate of HSn70-1A brass in polluted freshwater was also lower than that in the pollution-free water. Moreover, electrochemical measurements in simulated freshwater showed that phosphoric compounds had an inhibiting influence on the corrosion of HSn70-1A brass while the nitric compounds had little this inhibiting effect.
Features of Using the Russian State Standards and the Eurocodes for the Protection and Repair of Concrete Structures
Authors: Khodakov Artem , Tochenyy Maksim , Belyaeva Svetlana , Nikonova Olga , Pakrastinsh Leonid
Published: September 2014

The corrosion is one of the main deterioration reasons of structural concrete and reinforced concrete. The corrosion is a consequence of unsatisfactory construction maintenances, poor diagnosis of defects' causes and no fracture control of concrete structures and also incorrect repair specifications and incorrect products and techniques selecting for the repair inevitably lead to the concrete structures' deterioration. The most countries are taking care to developing of the national standards for using as manuals for the protection and repair of concrete structures against corrosion to avoid these negative factors. The article authors are offering the comparative analysis of the harmonized Russian state standards and Eurocodes for the protection and repair of concrete structures against corrosion.
Research Object Rotational Motion Estimation Based on Digital Video Analysis Technique
Authors: Xu Ji Hui , Zhu Xiao Dong
Published: September 2014

This paper is about the object rotational motion estimation based on optical flow equation. Being a non-touch measuring technique, it is of important value in some special occasions. It is to set up rigid motion equations by optical flow character, and then using two-step iterative method to estimate motion equation and calculate rotation speed for each coordinate axis. We present a simplified calculation method for some object which specific structure parameters are known. The experiment results show the calculation is accurate.
Determining Intrinsic Parameters and Pose of Cameras from Single View with Variable Focal Length
Authors: Liu Gui Hua , Long Hui Min
Published: September 2014

This study claims an algorithm of calibration which is executed on the basis of projection matrix. This algorithm directly estimates intrinsic parameter on the basis of rotation matrix’s unitary orthogonality combined with Cholesky decomposition from the obtained projection matrix. Then, false is excluded by rotation matrix’s determinant constraints, and ultimately, camera location and orientation matrix are obtained and estimated parameters are optimized with the minimum error of reprojection residual being cost function. This algorithm is taken under a pinhole camera model and can calibrate the camera from single view with variable focal length. Both simulation data and true image experiments have proved the feasibility and robustness of this algorithm.
A Retrieval Strategy for Texture Image
Authors: Qian Chun Hua , Qiang He Qun , Gong Sheng Rong
Published: September 2014

Texture Information is widely used as one of the main low-layer features in the content-based image retrieval. In general, when the retrieval is carried out in texture image space, the same description method is adopted to regular and irregular texture images. As a large amount of regular and irregular texture images existed in the image database, it is very difficult to describe every texture with the same description method. In this paper, a retrieval strategy for texture image is proposed. The proposed strategy is divided into steps: First, classify texture images by Wold decomposition into regular and irregular texture images, then describe and retrieve them by regular and irregular texture description separately. Experimental results have showed that proposed strategy can improve classification and retrieval precision.
The Simulation of Infrared Imaging Based on Vega
Authors: Sun Hong Hui , Li Min , Wang Hong Xia , Song Jian She
Published: September 2014

Infrared imaging simulation is important in national defense, military affairs, aviation and aerospace etc. A method of infrared imaging simulation is proposed based on Vega sensors, in this paper. The 3D model of air target with a visible texture was built with the software Creator. Then infrared texture was mapped to get by the tool TMM and atmosphere conditions were modeled in MAT and infrared image was simulated using Vega sensors. Finally the emulational infrared image is corrected using infrared imaging instrument and the measure instrument of infrared radiation on the surface of objects based on the above results.The experimental results show the method of infrared imaging simulation is effective and valuable in engineering application.
Vein Image Segmentation Based on One-Dimentional Gray and Filter Erosion Method
Authors: Zhang Xun , Guo Yong Hong , Li Gang , He Jin Long
Published: September 2014

For the low contrast and serious noises, a fast image segmentation method based on one-dimensional gray segmentation, binary morphology erosion and area elimination is proposed. Since veins are thin and long, the vein image can be easily distinguished from background by judging the gray difference from nearby pixels when they are vertically or horizontally scanned. Then the processed image is diposed with erosion and area elimination to filter the noise. According to test results on the hand vein images which got from the equipment constructed by ourselves, it is proved that the method is more suitable for hand vein image segmentation than others and clear vein images can be botained quickly.
An Improved Alternating Active-Phase Algorithm for Multi-Material Topology Optimization Problems
Authors: Cui Ming Tao , Chen Hong Fang
Published: September 2014

For the multi-material topology optimization problems which take structural minimum compliance as the object, based on the weight function and optimality criteria, an improvement to the original alternating active-phase algorithm is achieved in establishing and calculating the mathematical model of multi-material topology optimization problems. Simulations of numerical examples are implemented respectively by the improved alternating active-phase algorithm and the original algorithm. It can be found that the minimum compliance obtained by the improved algorithm is generally lower than that obtained by the original algorithm in each numerical example, whereupon the feasibility and efficiency of the improved algorithm are manifested.
A 5GHz Analog Laser Diode Driver for Radio-over-Fiber Transmission Applications
Authors: Hu Zheng Fei , Chen Ying Mei , Huang Min Di
Published: September 2014

The design of an analog laser diode (LD) driver for 5GHz radio-over-fiber (ROF) transmission systems is presented in this paper. The proposed linear LD driver adopted a single-ended two-stage amplifier structure with the operating voltages of 1.8V and 3.3V respectively. The technique of self-biased cascade amplifier is employed to increase the gain and alleviate the danger of gate oxide breakdown. The simulation results show that the analog amplifier achieves the power gain of 35dB and the output 1dB compression point of 18dBm at 5GHz. The corresponding output modulation current is up to 50mA at the 1dB compression point. The total chip area is only 710μm×580μm with the all on chip input and output matching network, and the power consumption is 130mW.
Optical Fiber Dispersion Compensation Based on Optic System
Authors: Song Wei , Qiao Shi Quan , Zhang Xiao Lin , Wang Shu Hai , Chen Shu Wang
Published: September 2014

In the optical fiber communication system of high-speed and large capacity, the dispersion is one of the main technical indicators. The dispersion causes the light pulse broadening, so it leads to the distortion of signal transmission and BER (bit error rate). The main research is the single-mode optical fiber dispersion compensation. The design and performance of system structure on the dispersion compensation fiber communication system is accomplished by using of the optic system optical fiber communication system simulation. Through the analysis of system structure and the research of the performance of the key components of the system, the output signal waveform is simulated and the influence of the output signal waveform by the system structure and key components performance of the receiving end is compared. The design can reduce the system dispersion.
Program Design Based on Communicate by PSPICE and MATLAB
Authors: Ding Guo Bao , Xu Hai Feng , Yao Cheng , Gao Fei
Published: September 2014

The Pspice which is a simulation circuit simulation software is powerful, but the graphics are still defects, and MATLAB can make up for the shortcomings. In this paper, on the basis of analyzing the characteristics of the Pspice software output file created in the MATLAB M file, the method based on multi-resolution analysis to extract the fault feature, can solve the problem of the data transmission between the two, and example verification.
Research on Multi-Scroll Chaotic Attractors Synchronization Technique
Authors: Li Dan , Chen Wei Hua , Wang Yang , Cui De Li
Published: September 2014

Multi-scroll chaotic attractors synchronization technique is a research focuses in recent years. This paper focuses on multi-scroll chaotic attractors in the four-dimensional system. It uses variable feedback synchronous method to achieve the two 4-scroll chaotic attractors’ synchronization. The feasibility of this method is proved by theoretical analysis and numerical simulation. Simultaneously, it gets a better synchronization results.
A Smart Remote Controlled Multi-Functional Lighting System
Authors: Hu Jin , Lin Hui Pin , Wang Qun , Lu Zheng Yu
Published: September 2014

Recently, remote control technology attracted wide attentions and began to be used in lighting applications with computer and internet, power electronics, automatic control technologies together. Most conventional remote controlled lighting systems realized basic lighting functions, i.e. turning on/off and dimming. However, modern remote controlled lighting system needs to have multi-functions including line switching control, line anti-theft, illuminance detection, metering electrical parameters, ballast’s fault-condition detection, data analysis and statistics, abnormal-conditions alert and diagnosis. These functions will make the system more intelligent and practical. This paper proposes such a system comprising intelligent ballast, line switcher, meter, illuminance detector, server, website, etc. The system integration method is illustrated by analyzing the system’s working principle and functions. An experimental system is set up as a demonstration and the test results verify the proposal.
Analysis on Power Loss of the Three-Phase Induction Motor Fed by VVVF under Constant Torque Load
Authors: Wu Meng , Cui Xue Shen , Li Jun Chi
Published: September 2014

For air fan and water pump load, variable voltage and variable frequency (VVVF) energy-saving effect is very significant. This paper focuses on the study of energy-saving effect implemented by converter of the motor at constant torque load. In order to analyze the influence of the loss controlled by the voltage and frequency in detail, we obtain the theoretical calculation formula of total loss and input power by means of the classification of power loss of asynchronous motor under the cantilever equivalent circuit, take a 5.5kW motor as an example, a series of experimental schemes are designed and the general change rules of total loss and input power are studied respectively with the different voltage to frequency ratio. The results show that the measured values are basically accordant with the theoretical calculation value. On different conditions of voltage frequency ratio, optimal value exists in the total loss instead of input power.
Design of Automatic Rolling and Breaking Up Tea Machine on TRIZ Theory
Authors: Luo Long He , Guo Lin Wei , Zhang Xiang
Published: September 2014

To promote tea processing level of automation, an automatic rolling and breaking up tea machine use of TRIZ theory was designed. The working principle , structural features, the main technical parameters and performance were introduced in this paper.Results show that the rolling and breaking up device can meet the basic tea processing requirements, and convenient to operate, reliable and stable work.
Development of Experiment Platform of PMSM Control System in Electric Vehicles
Authors: Lin Li , Cui Hong Zhi , Zhu Hu
Published: September 2014

In order to test the efficiency of motor control strategy, we developed a platform based on DSP2812,named permanent magnet synchronous motor control system which used in vehicle. The algorithm of vector control system is proved effective to modify parameters and debug. And the researches provide the experiment basis of motor control strategy study.
Bi-Level Design Optimization of the Hatch Door Mechanism
Authors: Du Jian Bin , Huang Zhen Ting
Published: September 2014

Optimization model and solution method are developed in the present paper to improve the design of the hatch door mechanism of a regional airliner. The real motion trajectory of the hatch door normally has deviations from the ideal trajectory due to existence of machining errors. In order to decrease such deviations, a bi-level optimization model is developed for the design of the size tolerance limits of the key parts. The design objective is to minimize the extremum deviation of the trajectory of the objective point of the hatch door. The extremum deviation is obtained by solution of the inner-level size optimization problem for the fixed size tolerance limits. The optimization models for motion control of the hatch door mechanism are solved by the response surface method.
System Design to Prevent the Mine Transport Vehicles Stall
Authors: Hai Ning Li , Cao Zhi Chao
Published: September 2014

According to the characteristics of the ore under inclined lane transportation, design a kind of system which can prevent the transport vehicle’s speed out of control. The system can according to the different load of transport vehicles and the stall speed given different braking force to expand the application range of the system and increased its practicability. This set of system automation control and flexible intercept, prevent the stalled car accidents, and eliminate potential safety problems.
Type Synthesis of a 1T Symmetric Coupling Mechanism with the Method of Separation and Merger
Authors: Zhang Shou Li , Liu Jing Fang , Yu Yue Qing
Published: September 2014

The structural synthesis is the primary and the most important issue in the process of mechanism creative design. In the paper, Firstly, select a 1T symmetric parallel mechanism, and the constraint and mobility of the branches can be analyzed. With the method of linear combination of the screws, the new branches are constructed. Then, using the measure of separation and merger, parts of the limbs of the parallel mechanism can be replaced by equivalent coupled structures, so corresponding symmetric coupling mechanisms with equal mobility are synthesized. Finally, solving the constraint screws of the branch of the coupling mechanism, in order to prove the hybrid mechanism is full-cycle or not.
Control Approach in Cloaking Problems for 2-D Model of Sound Scattering
Authors: Alekseev Gennady V. , Lobanov Alexey , Sosnov Valeriy
Published: September 2014

We consider control problems for 2-D Helmholtz equation in a bounded domain with partially coated boundary. These problems are associated with acoustic cloaking. Dirichlet boundary condition is given on one part of the boundary and the impedance boundary condition is given on another part of the boundary. The role of control in control problem under study is played by surface impedance. Solvability of control problem is proved and optimality system is derived.
Design of the Vitreous Bio-Micro-Channel Fabricating Device in Microfluidic System
Authors: Tian Gui Zhong , Cao Wei Long , Zhou Hong Gen
Published: September 2014

In order to improve the structure, section shape and inner flow performance of micro-channel in Micro-fluidic system, a novel fabricating process of bio-micro-channel (BMC) is proposed based on the softening and forming property of glass material. By the manipulation of heating, pulling and blowing, a bio-micro-channel is made from glass capillary with specific functional units. A vitreous bio-micro-channel fabricating device (VBMCFD) is presented with working models of uniaxial and biaxial tension. Using common borosilicate glass capillary as experimental material, the affecting parameters of micro channel inner diameter, outer diameter, thickness and functional unit key parameter are tested, such as heating voltage, heating time, pulling velocity, pulling displacement and inner pressure. The bio-micro-channel is fabricated with micron scale inner diameter, about 5μm, and spherical functional unit. The experimental results show that the prototype of VBMCFD is characterized by reliable process, simple structure, low cost, etc. The vitreous bio-micro-channel is fabricated with circular-cross-section straight channels and uniform functional units, which are the key characters of biologic micro-channel.
Neural Network Compensation Method for Path Tracking Control of a Spherical Mobile Robot
Authors: Cai Yao , Gao Feng , Liu Ze Ning
Published: September 2014

This paper presents a neural network compensation strategy for the path tracking control of a spherical mobile robot BHQ-2 including a pendulum with two degrees of freedom. Based on our previous work, we propose a simplified method to decompose the dynamics model of BHQ-2 to be two sub-dynamics models. Applying the fuzzy guidance control method and a neural network compensation strategy, a path tracking controller for robot BHQ-2 is designed.
Drive-Train Control Strategy for Improving the Efficiency of RBS
Authors: Zhou Zhi Qing , Yang Jun Ping , Yuan Qing Dan , Wu Liang
Published: September 2014

The goal of the present contribution is to propose a new control strategy of drive train for the improvement of efficiency of regenerative braking system. In this new control strategy, the backward numerical solution is utilized to realize the cooperative operation of the electric machine and CVT. The analysis for the proposed control strategy is fulfilled based on the vehicle model. The results show that, compared to the existing one without considering the affect of CVT’s efficiency, the proposed control strategy could make more kinetic energies in the vehicle be recaptured.
H∞ Control for a Class of Uncertain Fuzzy System by Controller Switching
Authors: Yang Hong , Lü Huan Huan
Published: September 2014

The H∞ control issue of a class of uncertain T-S fuzzy system is studied in this paper. The items of uncertainties and external interference are introduced into the T-S fuzzy system so that the fuzzy model can be close to the actual model more accurately. The output feedback switching controller is designed by the switching technique and the method of PDC , and design the switching law so that the sufficient conditions which make the closed-loop system asymptotically stable are obtained. The results of MATLAB/SIMULINK simulation have shown the good feasibility and effectiveness of the designing method.
Researches on PID Controller Parameters Optimization Using IWO
Authors: Hua Yang Li , Jian Zhu Shi , Jun Lou Jing , Yong Deng Kai
Published: September 2014

In low frequencies, based on the linear model of giant magnetostrictive actuator, the PID controller is designed. According to the situation of fixed parameter controller with weak adaptive capacity, an intelligent algorithm - Invasive Weed Optimization (IWO) with competition mechanism is introduced to optimize the PID controller parameters. Invasive Weeds Optimization can elect adaptable seeds as optimal parameters through reproduction, spatial distribution and survival of the fittest. It has strong global and local search capability, which can effectively improve the control robustness and position tracking accuracy. Simulation results show that: for the step signal, compared with the traditional PID control, weed control PID control has the characteristics of high precision, good tracking performance and strong noise suppression capability.
Study on Photovoltaic Cell and its MPPT Control Simulation
Authors: Zhang Jian
Published: September 2014

Select to herein as interference observation MPPT control method according to the principle of interference with observation of the Matlab simulation model, the simulation results by the MPPT algorithm is not added with the results were compared and found MPPT algorithm can improve the the output power of the photovoltaic cell. Through experimental platform to build, complete with MPPT way battery charging, and the experimental results and the data used to prove the correctness of the algorithm.
Design of Rotary Flexible Manufacturing Cell with Multi-Station Automatic Stretching
Authors: Zhou Yu , Hu Xue Wu , Sheng Xiao Ming
Published: September 2014

Rotary flexible manufacturing cell with multi-station automatic stretching is designed in this paper to meet the requirements of the machining process of cylindrical drawing parts as well as the needs of different stations for multi-drawing. The cell uses fixed circular disc worktable with multi-station. Each machining station has hydraulic stretcher to complete the drawing of the workpiece. Flexible manipulator finishes automatic loading and unloading among hydraulic stretchers. Gripper of manipulator with automatic center aligning and size control can grip workpiece in various sizes and has the function of self-centering. This equipment has completely realized all the stretching processes automaticly from feeding sheet metal to sending and forming workpieces. It can improve production efficiency and quality. It can also improve safety, reliability and cost efficiency. When replacing worked parts is needed, simply replace modular mold of every station in fixed circular disc worktable.