bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Aerodynamic Characteristics of Morphing Aircraft with a Telescopic Wing
Authors: Zhao Xi You , Hu Jun
Published: June 2013

A kind of morphing aircraft based on the concept of telescopic wing was designed in this paper. With the numerical calculation, it compared the aerodynamic characteristics before and after the morphing of the aircraft, and analyzed the relationship of the aircraft aerodynamic coefficient to its length, angle of attack and flight Mach number. The result showed that through morphing the movable wing, the aircraft can significantly change the lift, drag and other aerodynamic characteristics; the morphing aircraft can satisfy the dual task requirements of low-speed cruise and high-speed attack. Compared with the traditional aircraft in fixed shape, it had a better aerodynamic performance.
Synthesis and Characterization of Triethanolamine Borate
Authors: Wang Cheng Xue , Liang Tian Tian , Wei Chun Qiao
Published: June 2013

Starting with boric acid and triethanolamine , the effect of the different types of the water-carrying agent on the yield was invested, and influences of dosage of water-carrying agent ,the mole ratio of reactants, reaction time on yield were discussed, the optimized reaction conditions were confirmed. The structure of the product was described by Fourier transform-infrared (FT-IR) spectroscopy, NMR Spectroscopy analysis, mass spectrometry (MS) and thermodynamic properties was analyzed by differential scanning calorimetry (DSC) and thermogravimetry (TG).
A Preliminary Study on Preservation of Waxy Maize with Gas Package at Room Temperature
Authors: Liu Hai Dong , Zhang Yi Bin , Li Xi Hong
Published: June 2013

Effects of different methods of gas package on freshness of harvested waxy maize at room temperature in its shelf life were investigated. The harvested waxy maize were packaged under vacuum, air, N2 or CO2, respectively, and then stored 90 days at 30°Cafter the high temperature sterilization. After the sterilization and during storage, the changes of aerobic plate count, water content, soluble sugar content, and sensory evaluation were determined. The results showed that compared with others, the package with N2 could inhibit the growth of microorganisms, kept the content of water, soluble sugar and fat. After 90 days, the sensory evaluation could show that waxy maize of N2 package had better tasty and aroma.
Fatigue Life of UAV Airframe Based on Damage Coefficient
Authors: Jin Guo Dong , Lu Li Bin , Gu Liang Xian , Liang Juan , Zhu Xiao Fei
Published: June 2013

Because of its advantage of zero casualties, Unmanned Aerial Vehicle (UAV) plays an important role in battlefield monitoring and information acquiring, thus caught great attention of the world. But with large quantities of UAVs equipped, uncertain life-span has become an important constraint of operating UAV safely and economically. So assessing the service life has important military and economic values. In the entire UAV system, the airframe life severely affects operation of UAV. According to method of damage coefficient, evaluation model on life of UAV airframe was established. In the case of security, its fatigue life was determined.
Optimization of Reaction Conditions for Preparing Carboxymethyl Cellulose Guaze
Authors: Zhao Xi Hui , Li Qun , Mi Ye
Published: June 2013

Chemical modification was employed for converting cotton gauze to carboxymethyl cellulose (CMC) gauze by treating them with sodium monochloroacetate and sodium hydroxide. Fourier Transform Infrared spectra (FTIR) were used to characterize the product. The reaction was optimized against temperature, concentration and reaction time for obtaining high degree of conversion. Under optimized conditions, the CMC gauze has a large degree of substitution (DS) of 0.43, and it has shown better moisture absorption ability than that of common cotton gauze.
The Design of Warehouse Temperature and Humidity Monitoring System
Authors: Zhu Yu Chuan , Wang Shu Shi
Published: June 2013

In order to reduce the workload of warehouse supervisor and to monitor real-timely warehouse temperature and humidity conditions, this paper discusses the design of a warehouse temperature and humidity monitoring system based on a STC89C51 microcontroller, and introduces the system's working principle, system composition and the realization of hardware and software.
Algorithm of Hardy Function Interpolation and its Visualization in the Formation of the Virtual Battlefield Terrain
Authors: Liu Shi Bin , Wang Cheng , Yang Yan Ping , Liu Xing Yan
Published: June 2013

this thesis puts forward the idea of using the searching method to retrieve two kinds of data points of the circle and the square to generate DEM data of the collected discrete points by means of using C# language and OpenGL DLL, thus realizing the visualization of the three-dimensional virtual terrain from contours on the two-dimensional surface. This thesis makes a comparison and analysis of the visualization effect which indicates that this algorithm is quick and effective. This research has a certain reference value for the formation of the virtual battlefield terrain.
Research on Non-Manifold Polyhedron from Function-to-Form Mapping
Authors: Xu Zhi Gang , Wang Jin , Li Zi Xang , Sun Chun Po , Liu Tao Tao
Published: June 2013

In this paper, a class of non-manifold polyhedron is introduced and researched from a decomposition and mapping model (D-M for short). Design computing from function-to-form mapping and shape decomposition etc is reported. Modelling of non-manifold polyhedron is the key issue to develop function to form mapping process; and research on function to form mapping could help to develop the creative computational design tools.
The Influence of Package Atmospheres on Resonance Performance of Micromechanical Radial-Contour Disk Resonator
Authors: Wang Gang , Xu Li Xin
Published: June 2013

Owing to high performance and tiny size, micromechanical radial-contour disk resonator as competitive candidate demonstrates an impressive prospect to replace traditional frequency selecting module in RF devices, so as to improve performance of modern RF transceivers. The influence of package atmospheres on resonance performance of micromechanical radial-contour disk resonator was investigated. By model construction and FEM calculation, resonance performance of micromechanical radial-contour disk resonator was analyzed, which indicate its resonance frequency as well as unique deformation style. In addition, effect on resonance performance of radial-contour disk resonator caused by package atmosphere was analyzed. The analysis result of resonance parameters variation of resonator immerged in different gases reveals that as the gas viscosity increases, the resonance frequency decreases. The phenomenon was interpreted by damping effect and recovery delay of disk deformation introduced by gases, which can be a reference for micromechanical resonator design and package selection in different applications.
Image Stereo Matching Based on Multi-Scale Plane Set
Authors: Jiang Xin Hui , Yu Shao Jun , Jiang Xing
Published: June 2013

The disparity map of dynamic programming method is poor. To overcome it, a stereo matching method based on multi-scale plane set is proposed in this paper. This method converts the structural model into the plane set. Define the key plane. Then the key planes are in a high-scale. The other planes are in the low scale. Stereo matching the multi-scale plane set using dynamic programming method. The experimental results show that: this method can solve the dynamic programming algorithm`s problem that disparity map has low matching accuracy and a lot of stripes error.
Gauss-Newton Iteration Estimation to the Parameters in Nonlinear Regression Models
Authors: Chen Miao Chao , Zhao Yu
Published: June 2013

In this paper, we investigate the parameters estimation in nonlinear regression models. Firstly, a Gauss-Newton iteration method is given to estimate the parameters in the nonlinear regression models. Moreover, a numerical simulation study and real data analysis are given to illustrate the validity of proposed diagnostic measures.
A Novel Differentiate Weight Algorithm on Heterogeneous Network Selection
Authors: Zhang Wei , Wu Xin Rong , Han Wei , Liu Ting , Jiang Shun
Published: June 2013

How to select a target network meeting the needs of Quality of Service (QoS) guarantee in heterogeneous network environment has become a research hotspot. In this paper, a novel differentiate weight algorithm on heterogeneous network selection is proposed. As regard of the different needs of QoS for each class of traffic in heterogeneous network, the QoS parameter weight for each class of traffic is calculated by G1 method, and then the target network is selected by technique for order preference by similarity to ideal solution (TOPSIS). At last, simulation results show that the algorithm proposed in this paper is better than average weight algorithm on selecting target network reasonably and balancing network loads.
Analysis and Research of Intrusion Detection System Based on Association Rule
Authors: Jiao Ya Bing
Published: June 2013

A model of intrusion detection system based on the technology data mining is presented on the basis of introduction on the concept and the technical method of the intrusion detection system. In this model, the two methods of the technology data mining association rule and the classified analysis cooperate with each other and the detection efficiency will be greatly enhanced.
Symmetric Multiwavelet Frames with General Lattice
Authors: Zhang Xin Cheng
Published: June 2013

The multiwavelet has more desired properties than any single wavelet, such as short support, symmetry, and smoothness. In this paper, symmetric multiwavelet frames with general lattice and with any symmetric points are constructed from multiwavelet frames given. The existing result is generalized to the case of general lattice.
Analysis on Preception and Model for Service Quality in Chain Supermarkets Visited by Customers in China
Authors: Liu Nian
Published: June 2013

for the economy, political and Consumption habits are different from which of the foreign counties, the authoritative retail service quality perception model abroad Dabholkar is not very fit to the Chinese characteristic economic environment. After constant comparison and research, we take Dabholkar model as the basis and then reviese variables to the model getting an new model that fit to China. At the same time, through researching on 126 consumers in chain supermarkets, we have validated the model we raised is reasonable by use of methods of reliability and validity analysis and confirmatory factor analysis.
Structural Equation Analysis of Major Factors of Chinese Commercial Banks Reengineering
Authors: Han Zheng Rong , Jia Jin Hu , Wang Xiao Xiao
Published: June 2013

On the basis of relative literature studies, this paper puts forward the conceptual schema of major factors of reengineering in Chinese commercial banks and research hypothesis, then proceeds empirical tests. The results show that market competition pressure affects reengineering performance indirectly by client oriented strategy, leading factors and information technology capabilities. Not only information technology capabilities have impact on reconstruction performance directly,but also client oriented strategy, organization and coordination degree influence that indirectly. Despite training and inspiration, information technology capabilities and organization and coordination degree also indirectly affect reengineering performance. Leading factors, together with training and inspiration, affect reengineering performance directly and indirectly. Organization and coordination degree affect reengineering performance directly. Finally, corrected conceptual schema of Chinese commercial banks reengineering influencing factors are got by analyzing the function from influencing factors to reengineering performance.
Photocatalytic Degradation of Methyl Violet with H3PW6Mo6O40/SiO2 Sensitized by H2O2
Authors: Duan Guo Bin , Huang Yong Kui , Yu Li , Yang Shui Jin
Published: June 2013

H3PW6Mo6O40/SiO2 was prepared by sol-gel method, and sensitized by H2O2 solution. The photocatalytic degradation of methyl violet by H3PW6Mo6O40/SiO2 under simulated natural light irradiation was investigated. The results demonstrated that at optimal condition (initial concentration of methyl violet is 10 mg/L, and the pH is 2.5, the dosage of catalyst is 0.5% based on feed stocks), the degradation rate of methyl violet is as high as 88.7 % after 2.5h simulated natural light irradiation. The reaction of photocatalysis for methyl violet can be expressed as first-order kinetic model.
On the Feasibility of Introducing Commercial Insurance into Major Sports Events
Authors: Xu Wei Hong
Published: June 2013

With the vigorous development of competitive sports, the scale of sports events is becoming larger and larger, causing fundamental influence on the hosting city in terms of economy, politics and culture. Therefore, as a starting point, this thesis focuses on the study of the importance of commercial insurance in major sports events. The feasibility of introducing commercial insurance into major sports events is analyzed in this thesis and so are the relevant matters.
The Synthesis of Cephalosporin Intermediates THZ
Authors: Wang Cheng Xue , Liu Xu Feng , Ma Zhen
Published: June 2013

Starting from Penicillin G,the THZ was synthesized through three main steps:esterification,oxidation and ring-opening. The effects of various reaction temperature,reaction time and ratio of reactants on the ring-opening reaction were investigated.The yields of its three step reaction are 91%,95.8% and 77.3%,respectively.The products were characterized by FT-IR,HNMR,Elemental analysis and MS. At 90~95°C and 0.04~0.05Mpa, the yield of THZ was 77.3%.
Expression of CD4+CD25+T Regulatory Cells and Foxp3 in Peripheral Blood of Patients with Rheumatoid Arthritis Patient
Authors: Sun Ke Xin , Li Yan , Guo Su Hong , Hou Yi Ju
Published: June 2013

To investigate the expression of CD4+CD25+T cells and the Foxp3 in peripheral blood of rheumatoid arthritis（RA），and to analyze the relationship between their activities and patho- genesis.The number of CD4+CD25+T lymphocytes in the peripheral blood and Foxp3 mRNA expression on peripheral blood monocytes of 48 RA patients and 35 normal controls were analyzed by three-color FACs analysis and reverse transcription-polymerase chain reaction（RT- PCR）．The expression of CD4+CD25+T cells RA patients in active group was significantly lower than that in remission group and healthy controls（P0.05）； The relationship between peripheral blood CD4+CD25+Tregcells as well as the Foxp3 mRNA and active renal score was negatively correlated. The expression of CD4+CD25+Tregcells and the Foxp3 mRNA of peripheral blood in RA patients is abnormal and it is correlated with pathogenesis and activity of RA.
Study on the Function of miRNA-155 Target Using Bioinformatics Methods
Authors: Han De Ming , Shen Zi Jun , Zhao Li Hui
Published: June 2013

MicroRNAs are small non-coding RNAs that act at the post-transcriptional level, regulating protein expression by repressing translation or destabilizing mRNA target. We searched information about miR-155 in miRBase. Target genes of miR-155 are predicted by four miRNA target gene prediction softwares. The result shows that miR-155 was involved in proliferation, differentiation and apoptosis. These results can contribute to further study on the role of microRNA in diagnosis and treatment of cancer.
A Epidemic Model with Inhomogeneity and Mobility Based on Cellular Automata
Authors: Gang Jia Tai , Shi Peng Yan , Gang San Shan
Published: June 2013

A cellular automata model with inhomogeneity and mobility was presented. The inhomogeneity in individuals’ behaviors was considered by assigning the distance on their neighbors, varying levels of infectivity and susceptibility. The individual mobility was reflected by random walk cellular automata. The proposed model can serve as a basis to simulate influenza A (H1N1) based on real data. We studied the effect of two population movement parameters on the epidemic propagation: the percentage and the max-distance of population movement. The results show that the epidemic spreading is more sensitive to the former. The infected individuals are positive growth while the percentage of population movement increases. And the number of infected individual eventually stabilizes in the case of plotting the relation of the max-distance against the infected.
Removal of Silica Bodies on Oil Palm Empty Fruit Bunch Surfaces and Application for Biogas Production
Authors: Mat Salleh Nur Fatin Dahlia , Ku Hamid Ku Halim , Hussain Noor Hana
Published: June 2013

Oil palm empty fruit bunch (OPEFB) in this study was used to remove silica bodies embedded on OPEFB strands. Silica bodies were removed by sonication method at varying sonication temperature of 40, 50 and 60 °C and tested using scanning electron microscopy imaging (SEM), x-ray diffraction (XRD) and applied to an anaerobic digester to quantify biogas production. Sonication was applied using an ultrasonic cleaner, producing 40 kHz sonic wave. This paper intends to utilize and optimize OP-EFB as bio-matrices to enhance biogas production. Results showed that the highest sonication temperature; 60 °C recorded the most perforated holes on SEM image, lowest intensity at 75 CPS for XRD analysis and highest biogas production of 13,919.27 cm3.
Applying AHP and Maximal Value Normalization to Evaluate Intensity of Urban Land Use in Sujiatun District, Shenyang City
Authors: Zhao Xiao Fan
Published: June 2013

In order to explore the intensive extent of urban land use in Sujiatun District of Shenyang City, the AHP and maximal value normalization were taken to analyze the level of intensive use of urban land. Results indicated that land use is extensive and land functions are mixed in the study area. Land use intensity should be strengthened and more land should be reserved for construction so as to improve the land use efficiency.
Characterizing Woodiness Carbon Fiber Precursor by Fractal Geometry Approach in Different Curing Conditions
Authors: Liu Zhi Gao , Zhang Qiu Hui , Zhao Guang Jie , Zhang Lu
Published: June 2013

For exploring the variation of the surface morphology of carbon fiber precursor which was obtained from different curing conditions,this paper used the fractal dimension measurement method to analyze morphological characters of carbon fiber precursor surface through the electronic scanning electron microscopy image recognition and computer fractal calculation system.
The experimental results show:the surface fractal dimensions of carbon fiber precursor were between 2.480~2.622 by TPSAM method, and the surface fractal dimensions of carbon fiber precursor were between 2.555~2.633 by PCM method, both methods show that the carbon fiber precursor surface is smooth. And the CCM is 2.678~2.755, this method shows that the precursor surface is concave and convex. The fractal dimension value obtained by TPSAM method and PCM method is closer, while the CCM is different. But the trend is almost the same, which shows that using the fractal dimension method to desirable the surface structure of carbon fiber precursor is desirable.
Effects of CaO Additions on the Structure and Dielectric Properties of Aluminoborosilicate Glasses
Authors: Yuan X.M. , Lu S.M. , Zhang X.H. , Cui Y.J. , Wu H.T. , Yue Y.L.
Published: June 2013

Glasses with compositions xCaO-(60-x)SiO2-5MgO-15Al2O3-20B2O3 (x=0, 3, 6 and 9 mol %) were prepared by conventional melting method. Fourier-transform infrared spectroscopy (FTIR) indicated that the addition of CaO converted trigonal boron ([B) to tetrahedral boron ([B). The glass transition temperatures (Tg) were determined using a differential scanning calorimetry (DSC). Tg increased with increasing CaO content. Thus, the addition of CaO instead of SiO2 strengthened the glass network. The dielectric εr and loss tanδ were measured for the MgO-B2O3-Al2O3-SiO2 glass system in the frequency range 103-105 Hz. The decrease in εr and tanδ could be attributed to the increase in the rigidity of the glass network.
Effects of CeO2 Additions on the Structure and Dielectric Properties of Aluminoborosilicate Glasses
Authors: Lu S.M. , Yuan X.M. , Zhang X.H. , Cui Y.J. , Wu H.T. , Yue Y.L.
Published: June 2013

Glasses with compositions 15Al2O3-20B2O3-50SiO2-5CaO-(10-x)MgO-xCeO2 (x=0, 1, 2 and 3 mol %) were prepared by conventional melting method. Fourier-transform infrared spectroscopy (FTIR) indicated that the addition of CeO2 converted trigonal boron ([B) to tetrahedral boron ([B). The glass transition temperatures (Tg) were determined using a differential scanning calorimetry (DSC). Tg increased with increasing CeO2 content. Thus, the addition of CeO2 instead of MgO strengthened the glass network. The dielectric constant εr and loss tanδ were measured for these glasses at 105 Hz. The decrease in εr and tanδ could be attributed to the increase in the rigidity of the glass network as the CeO2 content increased.
Study on the Optimum Hot-Pressing Process and Surface Decoration of Waste Tetra Pak/Sawdust Composite Board
Authors: Sun Xiao , Zhang Qiu Hui
Published: June 2013

To improve the way of efficient recycling of waste Tetra Pak package, save wood materials and develope new packaging materials, this article studied on the optimum hot-pressing process and surface decoration of waste Tetra Pak/sawdust composite board. Using the orthogonal experimental method, we studied the effect of that four factors, such as resin content, hot-pressing temperature, hot-pressing time and Tetra Pak/sawdust mass ratio, on MOR, MOE, TS for 2h of waste Tetra Pak/sawdust composite board. And according to the measurement and analysis of these three test indicators of the board, we obtained the optimum hot-pressing process of waste Tetra Pak/sawdust composite board. The results showed the optimization of process parameters for the board was that: resin content for 14%, hot-pressing temperature for 150°C, hot-pressing time for 420s and Tetra Pak/sawdust mass ratio for 4:6 were suitable to product this board. At this point, the maximum MOR of the board was up to 23.1MPa, the maximum MOE of the board was up to 2917MPa, the minimum TS for 2h of the board was down to 6.1%. In the processing of PVC surface decoration, by using comparison tests, the results figured out that hot-pressing temperature for 50°C-60°C, hot-pressing time for 10s-20s, hot-pressing pressure beyond 0.02MPa were good for PVC to decorate this kind of board. The formaldehyde emission of this veneer composite board was 0.3mg/L, the surface abrasion resistance of it could reach 900r, besides, its performance of surface pollution resistance has reached the national standard.
Synthesis of NiCu Alloy Nanoparticles by Arc Plasma Evaporation
Authors: Li Li Xin , Yang Zhong Juan , Li Ming
Published: June 2013

The NiCu nanoparticles were synthesized from NixCu1-x (20 at. % < x < 80 at. %) bulk alloys with arc plasma technique. The experimental results indicated that the crystal structure of the powders is face centered cubic structure, the same as the bulk raw materials. The composition between the prepared powders and the bulk alloys altered with the content of the nickel and copper. With Scherrer equation, the average crystallite size was determined to be 50 nm, which is consistent with the results achieved from the TEM (transmission electron microscopy) images. Also the TEM images showed that some of the nanoparticles could aggregate and grew into micro-size particles at room temperature. The largest size of the grown particle at room temperature was about 1 μm.
Impact Damage Research of Composite Laminates with AL Ply
Authors: Li Hong Peng , Huang Fang Lue , Hu Jin Hai , Lv Ying Jun
Published: June 2013

The composite material has been widely used in aircraft structures. But this kind of material has some shortage such as poor impact resistance, low residual compressive strength, which have a negative influence on the performance of aircraft structures. In this paper, simulations of low-velocity impact and compression process of composite laminates with AL ply has been done. Finite element software ABAQUS/Explicit has been adopted to simulate the 3.5J impact and compression. A certain number of composite laminates with different thickness of AL ply has been tested, equal weight traditional composite laminates also been simulated as comparison. The simulation results show that AL ply with certain thickness can improve the residual compressive strength.
Majorization of Technical Treating Circle Bamboo with ACQ-B
Authors: Han Jian , Luo Dan
Published: June 2013

Taking water-solubility preservative (ACQ-B) as the agentia, and the liquid medicine concentration (LMC),the forcing time, the liquid medicine temperature (LMT) and the pressure as the test factors, the permo-treatment was processed to the circle bamboo, and the technical conditions of the treatment were compared. The results showed that each factor and the levels in the same factor had all larger differences to the weight increase rate (WGR) of bamboo, and WGR of the specimens in the same level had also larger difference. Through variance, range and trend analysis, the technical condition for anti-decadent of circle bamboo was that LMC was 1.0%, forcing time 15h, LMT 65°C, pressure 0.24MPa, which proved that the preservative could get best permeating result through repeat test.
Experiment and Analysis on Side Milling Deformation of Thin-Walled Workpieces Using Laddered Symmetrical Tool Path
Authors: He Yong Qiang
Published: June 2013

The aluminum 7075 workpieces are machined on a vertical machining center KX650 using laddered symmetrical tool path. The deformation characteristics are studied under different cutting conditions. Different cutting parameters are changed one by one in side milling tests to find out their impact on deformation error. The analyzed result provides a solid basis for machining parameter optimization in side milling thin-walled workpieces.
Research on New Shapemeter of Cold Rolling Thin Strip
Authors: Yu Bing Qiang , Yang Li Po
Published: June 2013

Based on the shape detecting principle and the digital signal technology, a new shape meter was developed thorough theoretical analysis and industrial adjustment to develop the shape detecting roll, the shape signal processing method, the original signal compensation mechanism and so on. The shape meter has good performance and stability, which can effectively avoid the scratch of steel strip surface, accurately detect real online strip shape and provide accurate online shape datum for shape control system. It was applied in 1250 mm cold rolling mill, the actual industrial tests prove that the shape signal was stable and reliable, met the harsh condition and the online technical requirements, and could improve shape quality significantly.
Terahertz Transmission Properties of VO2 Thin Films Deposited on c-and m-Plane Sapphire Substrates by Pulsed Laser Deposition
Authors: Kou Xiao Qiang , Bian Ji Ming , Zhang Zhi Kun
Published: June 2013

Vanadium dioxide (VO2) films were grown on c-and m-plane sapphire substrates by pulsed laser deposition (PLD) technique with VO2ceramic target. The VO2films with preferred growth orientation and uniform dense distribution have been achieved on both substrates, as confirmed by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The terahertz (THz) transmission properties of VO2thin films were studied by terahertz time-domain spectroscopy (THz-TDS). The results indicate that the THz transmission properties of VO2films are strongly influenced by the sapphire substrate orientation, suggesting that VO2films are ideal material candidates for THz modulation.
The Displacement Control of Clutch Actuator Based on NNPC
Authors: Song Yong Dao , Cheng Xiu Sheng , Gu Qiang , Jin Han Yu
Published: June 2013

A clutch actuator system of dry dual clutch transmission was presented in this paper, and clutch displacement intelligent control arithmetic based on NNPC(Neuro Network Predictive Control) was designed to realize accurate control of clutch displacement. The accurate mathematical model and simulation model based on Matlab/Simulink of proportional flow valve were established.The simulation was carried out and the intelligent control system was verified by experiment. The rusults showed that the clutch intelligent control algorithm with NNPC had good adaptive ability and high precision. It could meet the requirements of the clutch displacement control for dry dual clutch transmission.
The Research on Degradation Failure Life and Degradation Data Structure
Authors: Wang Yi Dong , He Yi Zhou , Liu Hai Bo , Lei Jun Wei
Published: June 2013

In order to solve the reliability assessment in the case of competition failure induced by the coexistence between burst-type failure and degradation-type failure in the product, the method of degradation amount distribution was adopted to describe the degradation process of performance in product. Considering the relativity between sudden failure and degradation degree, the cumulative distribution function of sudden failure was calculated from the standpoint of degradation amount. Eliminating the affect of sudden failure according to a certain conditional probability in the degradation amount distribution function, which helps to realize reliability assessment based on competitive failure analysis.
Experiment Study on Dynamic Effects of Ice Shedding on Overhead Transmission Line
Authors: Yang Wen Gang , Su Shi Bin , Wang Zhang Qi
Published: June 2013

The vibration caused by ice shedding from overhead transmission line will lead to a great damage to transmission line in ice disaster areas, so it is of great significance for line design to research the vibration characters caused by ice shedding. In order to research the characters of tensile force in ice shedding conductor, the ice shedding phenomenon is simulated in laboratory by a single conductor between isolated span. The result shows that: the ice-shedding response amplitude will increase as the increase of ice thickness, the decrease of the sag-span ratio or the increase the shedding ice quantity; the max dynamic tension caused by part of ice shedding from conductor may larger than the whole ice-shedding.
Controlling Weak Laser Beam to Nonlinear Focusing Based on Induced Nonlinear Effects
Authors: Lin Feng , Tan Chao , Zhou Yuan , Fu Xi Quan
Published: June 2013

In this paper, we theoretically and experimentally investigated the controllable nonlinear focusing of the weak laser based on the induced nonlinear effects. We obtained an exact analytical solution to the weak laser beam when the high power laser beam is unchangeable during propagation. We also discussed the different pump parameters how to influence the focusing and experimentally partly verify the theoretical analysis. The results show that the focusing of weaker beam was jointly controlled by the power, width and wavelength of pump laser.
Optical Sensing Properties Optimization of a Slot-Waveguide-Based Silicon Ring Resonator Biosensor
Authors: Gao Liang , Yuan Guo Hui , Wang Jun , Chen Yu Ren
Published: June 2013

An optical biosensor with a slot-waveguide-based micro-ring resonator on silicon-on-insulator (SOI) is reported. By numerical analyzing, a small-sized sensor of 25×15μm2 with a sensitivity of 594nm/RIU can be achieved for NaCl solution, which is about eight times of that of the conventional micro-ring sensor. The free spectral range of 25.6nm and a quality factor Q of 430 are also observed. If SNR is more important, an asymmetric coefficient of 0.7 can be introduced to enhance Q factor. Our analysis also shows that the sensor has good sensing characteristics to other organic solutions.
Corrosion Inhibition of Chloroacetic-Acid Modified Imidazoline for Q235 Steel in H2SO4 Solution
Authors: Zhao Bin , Zou Li Ke
Published: June 2013

A new chloroacetic-acid modified imidazoline (CAMI) was synthesized via the quaternization of imidazoline intermediate, obtained from the amidation and cyclization reactions of benzoic acid and diethylene triamine, with chloroacetic-acid. The performance of the synthesized compound CAMI as corrosion inhibitor for Q235 carbon steel in 5% sulfuric acid solution was investigated by weight loss measurement and potentiodynamic polarization technique. The results show that CAMI possesses strong inhibitive effect on the corrosion of Q235 carbon steel in acid medium and restrains the corrosion without changing the cathodic and anodic corrosion mechanism as a mixed-type inhibitor.
Focused Plenoptic Camera and Spatial Resolution Improving Technology
Authors: Zhao Juan Ning , Dong Xiao Na , Yuan Suo Chao
Published: June 2013

The focused plenoptic cameras based on the rays resampling of microlens array on the image formed by main lens, captures radiation on sensor includes the 4D radiance information.Because of both spatial and angular information are recorded on the sensor of fixed pixels number, when rendering image with fixed view there are limited pixels from sub_image are adopted, this results in disappointingly low resolution of the result image. Our approach presents a new approach to rendering an image with higher spatial resolution than the traditional approach, allowing us to render high resolution images that meet the high requirements.
Analysis and Research of the High Power LED Temperature Characteristics
Authors: Liao Qi Li , Lang Ting Ting , Lv Fei
Published: June 2013

This paper is mainly about the high power LED temperature characteristics. With the integrating sphere, we conduct an experiment to observe and analysis the relationships of temperature and color coordinates, peak wavelength, color temperature, forward voltage, peak bandwidth, color purity, electric power. Finally we get that the temperature is the main factor to affect the color performance of white LED photoelectric, with the white LED apparent temperature rise, forward voltage, the color coordinates and color purity tends to go down. On the contrary with increasing junction temperature, the half-value wavelength and color temperature are increased accordingly.
Design of Tilt Angle Measurement System
Authors: Huang Hua
Published: June 2013

For the purpose of inclination measurement and monitoring, a tilt angle measurement system using a heat convection accelerometer is presented in this study. A conditioning circuit that center around the single chip processor is designed and built. Experiments were carried out to characterize the measuring system with the range of-90° to +90°. The output results show nonlinear relationship. The calibration result indicates that the sensitivity of the accelerometer is about 650mV/g. The maximum error is 5.5% while the repeatability error is 3%. Experiments proved that the developed measurement system is capable of measuring tilt angle.
Research on the Optimal Design of Soccer Robot Based on the Mechanical Analysis
Authors: Li Xiao Guang , Kang Li
Published: June 2013

According to the problem that the intelligence is not high of the soccer robot, using the mechanical theory as a guide, making some mechanical analyses and calculations on the pressure and transmutation states of chip kick mechanics, and conducting optimal design too, then making the structure of chip kick mechanics more and more rationalization. Experiments show that the new soccer robot controller features a quick response and high servo rigidity, and provide a kind of method for improving and perfecting the soccer robot control system, at the same time, filling the needs of producing.
Autonomous Cooperative Control for a Class of Linear System Based on Directed Graph
Authors: Li Zhao Ming , Niu Ya Feng , Gao Yong Ming
Published: June 2013

This paper proposes an autonomous cooperative control method for a class of linear system based on the directed graph, and the proof is given. The directed graph is used to describe the topology relationship among individuals in the system. The difference between desired and actual value of the system state is defined as error, and by exchanging error information among individuals, all individual states are synchronized up to the desired value. The control algorithm proposed in this paper has high robustness. Finally, the numerical simulation results show the correctness of the control law, and by configuring the control parameters reasonably, we can achieve high degree of control accuracy.
Incremental Tensor Discriminant Analysis for Image Detection
Authors: Yan Tao , Liu Chang , Zhao Wei Dong
Published: June 2013

In order to settle incremental learning and preserve the space information of images, this paper proposes an incremental tensor discriminant analysis for facial image detection. The proposed algorithm employs tensor representation to preserve the structure information and introduces the incremental learning to solve the on-line learning for new added samples. The experiments have shown that our method achieves better classification performance and reduces the computational cost effectively compared with other algorithms.
The Application of RFID in Coal Mine Safety Management
Authors: Niu Yuan Yuan , Zhu Zong Jiu , Fan Ming Ru
Published: June 2013

With the continuing development of Radio Frequency Identification technology, RFID has been used widely. Based on RFTD technology, the paper introduces some examples used in coal mines in the country. The component and the working principle of the system were also be presented. The paper introduced the application of RFID technology in personnel position management, tunnel safety and device management.
Apply Kalman Filter to Data Processing in Similar Material Model
Authors: Wang Juan , Lai Si Yu
Published: June 2013

Comprehensive analysis about Kalman filter model of discrete linear system is discussed in this paper. Firstly, the model is established based on the data of similar material model acquired from industrial close-up photogrammetry system. Then, look for solutions by encoding in Matlab platform. Finally, we conclude that the Kalman filter enjoys obvious denoising effect in data processing of similar material model, and the subsidence curve reflects actual situation of the simulation better. Comparing with the Logistic function fitting, the simulated results show that the proposed filtering model is accurate and effective.
Research on Virtual Reality Based Equipment Operation Training Simulation with GL Studio
Authors: Chen Gang
Published: June 2013

Aiming at the difficulty of large weapon equipment operation training simulation, GL Studio software tool was adopted based on VR technology. A hierarchy structure was put forward to simulate all kinds of integrating equipment system, single equipment and operation unit. Key technologies including Model database structure optimization, LOD, operation unit motion simulation based on DOF and screen show simulation based on switch are also put forward in detail. Finally, a simulation example of VR based large weapon equipment operation simulation training system was presented to prove its feasibility.
Cost Control of the Civil Engineering Based on Activity-Based Costing
Authors: Liu Yan Hong , Hu Guang Ling , Wang Qin Li
Published: June 2013

In order to solve the current problems of cost management in civil engineering industry by using traditional management accounting systems, an effective method of activity-based costing is presented. Activity-based costing has been suggested as the leading contender method to replace traditional cost accounting systems, since its capability can make the processes and activities performed in the organization more transparent and observable. The paper attempts to develop a cost accounting system based on the activity-based costing ideas. The proposed method can provide the useful information to manage total processes in civil engineering. Nine operations are suggested in the proposed method, such as processing, pre-processing, post-processing, moving, and so on. As seen from the result of the case, the proposed method is of efficiency and feasibility.
Micromagnetic Simulation of CoFe Magnetic Nanorings: Switching Behavior in External Magnetic Field
Authors: Guo Zhen Gang , Pan Li Qing , Qiu Hong Mei , Rafique M. Yasir , Zeng Shuai
Published: June 2013

The magnetization reversal processes of magnetic nanorings (Co50Fe50) with different geometric shapes are investigated. In addition to the expected onion and vortex magnetization states, other metastable states are observed in the magnetization processes. We anatomize the formation and transition of magnetic states, and the propagation and annihilation of domain walls in the reversal process through the dynamic picture. Phase diagrams for the magnetization switching behavior depending on the geometric parameters are presented. The simulation shows that the vortex state is stabilized in thick and narrow rings. The switching field from vortex to onion states turns out to increase with thickness and decrease with width and diameter.
The Preparation of Tri-Cellulose Acetate Hybrid Material Containing Rare Earth Europium (III) Complex
Authors: Liu Xiang , Zhu Jiang , Xu Qiang , Gong Xiao Di
Published: June 2013

Europium (III), acrylic acid and 1,10-phenanthroline three ternary complexes was synthesized with acrylic acid (AA) as the first ligand and 1,10-phenanthroline as the second ligand. Tri-cellulose acetate (TCA)/Eu (AA)3Phen hybrid material was prepared by the method of solution blend, dimethyl sulfoxide (DMSO) as the mutual solvent. The Fourier transform infrared spectroscopy (FT-IR) results confirmed the molecular structure of the Eu (AA)3Phen complex and the formation of the doping TCA/Eu (AA)3Phen hybrid material.
Developing 1-D MM of Transient Industrial Quenched Chromium Steel-5147H to Study the Effect of Radius on Temperature History
Authors: Omar Badrul , Elmaryami Abdlmanam S.A.
Published: June 2013

Mathematical modeling of an axisymmetric transient industrial quenched chromium steel bar AISI-SAE 5147H, water cooled based on finite element method has been produced to investigate the impact of process history on metallurgical and material properties. Mathematical modelling of 1-D line (radius) element axisymmetric model has been adopted to predict temperature history of the quenched chromium steel bar at any point (node). The temperature history of four different radii cylindrical geometry chromium steel 5147H is determined. The temperature history needs to be properly understood in order to efficiently produce high quality components. The model can be employed as a guideline to design cooling approach to achieve desired microstructure and mechanical properties such as hardness. The developed mathematical model converted to a computer program. This program can be used independently or incorporated into a temperature history calculator to continuously calculate and display temperature history of the industrial quenched chromium steel bar and thereby calculate the mechanical properties. The developed program from the mathematical model has been verified and validated by comparing its temperature simulation results with commercial finite element software results. The comparison indicates reliability of the proposed model.
A Study of Chatter Stability Domain in Different Phases of Milling Process of Thin-Wall Component
Authors: Liu Wei Wei , Cai Yuan Yuan , Li Feng , Li Xiao Yan , Wan Xu Sheng
Published: June 2013

Aeronautical thin-wall components are widely used in Aero-Engine, and the machining stability of the thin-wall components is a difficulty issue. In this paper, a single freedom dynamic model is set up to describe the dynamics of thin-wall milling process, and the stability of the dynamic model is analyzed with the discretization method. Then the modal parameters are gained in the different milling phases and the resonance region of spindle speed is proposed. Optimize the milling parameters with the chatter stability domain at different milling phases. The result shows that the cutting chatter can be restrained if getting the spindle speedcutting depth parameters considering the superposition area of chatter stability domains and avoiding the resonance region in the different milling phases. At last, the method is applied in Aero-Engine thin-wall blade milling, the metal remove rate increases greatly and the machining accuracy is improved greatly.
Effects of ELID on High Efficiency Deep Grinding of Y-TZP
Authors: Shang Zhen Tao , Li Ping , Xie Gui Zhi
Published: June 2013

Engineering ceramics have been extensively used as structural materials in modern manufacturing industries due to their excellent properties. High Efficiency Deep Grinding (HEDG) with Electrolytic In-process Dressing (ELID) process can realize the stabilized and controlled grinding process of engineering ceramics, but there lies many questions to be done. In the light of Y-TZP materials, the grinding process of HEDG with ELID was optimized, and comparisons were made between HEDG with ELID and HEDG without ELID process for Y-TZP ceramics, and mechanisms of HEDG with ELID were revealed.
Preparation and Characterization of Dioxanone and Poly(dioxanone)
Authors: Deng Kui Lin , Jin Wen Hui , Zhang Fu Chen , Li Chun Xiu , Shen Hui Juan , Ma Xin , Fan Xue Ying , Wang Meng
Published: June 2013

In this paper, the ammonium dichromate and copper nitrate were used as raw materials to prepare the copper chromite, and nanocopper chromite as a catalyst was used to synthesize the monomer dioxanone in diethylene glycol dehydrogenation. Under the strict conditions of no water and no oxygen, the stannous octoate was selected to catalyze ring-opening polymerization of the dioxanone to prepare the polydioxanone. And dioxanone and its polymers were characterized with IR spectroscopy,1H NMR spectroscopy, thermogravimetric analysis (TG) and differential scanning calorimetry (DSC ) measurements.
Paper Machine Boots Type Press Control System Analysis
Authors: Su Dong Hai , Zhang Zhi
Published: June 2013

In the papermaking process, improve the efficiency of dehydration is the most important part of the control system of the paper machine press section, in order to improve the the papermaking efficiency and the quality of paper, the paper analyzed, the shoe working hydraulic oil passage analyzed.
Synthesis of Rutile Titanium Dioxide Whiskers by Flux Method
Authors: Zhang Li Hua , Nai Xue Ying , Zhu Dong Hai , Zhu Cheng Cai , Zhang Xing Ru , Li Wu
Published: June 2013

Rutile titanium dioxide whiskers with diameter around 2μm and length up to 45μm have been successfully synthesized via a facile flux method, using anatase titanium dioxide as raw material and a mixture of ZnSO47H2O and Na2SO4 as flux. The products were characterised by X-ray diffraction (XRD), scanning electron microcopy (SEM) and energy dispersive spectroscopy (EDS). It turned out that the calcined temperature and the type of flux addition affected the crystal phase and morphology of the final product greatly. The results showed that rutile titanium dioxide whiskers obtained at 850 °C for 4 hours had the most uniform morphology. The possible growth mechanism was briefly discussed.
Analysis of Rock Slope Stability on the Basis of Limit Equilibrium Method
Authors: Wang Jun , Ji Hong Guang
Published: June 2013

To analyze the rock slope stability of open pit, limit equilibrium theory is used and the safety factor of slope stability is calculated by Geo-slope software. Then, the region where local instability or overall instability may occur is determined. Finally, some optimization plans and appropriate protective measures are suggested, providing a theoretical basis for engineering practice.