bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Electronic and Optical Properties of Al-Doped ZnS from Density Function Theory
Authors: Wu Ai Ling , Guan Li , Gu Ting Kun , Feng Pei Yuan
Published: August 2013

Using ab-initio ultrasoft pseudopotential plane wave approximation method based on density functional theory (DFT), a systematic investigation on electronic and optical properties of ZnS with and without Al-doping has been performed. Calculation results show that Al-doping narrows the band gap of ZnS systems and Al-doped ZnS system changes from semiconductor into metal through the Mott transition. Moreover, with Al-doping increasing, the increase of absorption coefficient and redshift of absorption spectra are obtained. Absorption spectra of pure ZnS and Al-doped ZnS are in good agreement with the experimental results.
Thermochromic Properties of VO2 Films Deposited on Quartz Glass
Authors: Zhao Xiao Ling , Zhang Yu Zhi , Cao Yun Zhen , Yan Lu , Wang Xiao
Published: August 2013

VO2 films were deposited on quartz glass by rf reactive magnetron sputtering with plasma emission monitoring (PEM). The effects of film thickness 30-194nm on optical properties and phase transition properties were investigated. The transmittance and semiconductor-metal phase transition (SMT) temperature decrease and reflectance of the films in metallic states increase as the thickness of films increases. For 55nm-thick VO2 film, the luminous transmittance (Tlum) and switching efficiency (∆Tsol) were about 34.1% (20°C) and 35.3 %(90°C) and 6.8%(∆Tsol). Thinner films can provide much higher luminous transmittance but they suffer from an attenuation of switching. The switching efficiency of the VO2 films does not increase monotonically as the thickness increase. Variable temperature transmission electron microscopy (TEM) measurement reveals that the SMT temperature changes for VO2 with different orientation.
Preliminary Study on the Electrolysis of Titanium Oxysalt
Authors: Zhao Kun , Wang Yao Wu , Tao Shao Hu , Feng Nai Xiang
Published: August 2013

A new method for producing titanium and titanium alloys was studied at this paper. The experiment results indicate that Na2TiO3 could be synthesizing by heating at 450°C using NaOH and TiO2 powders.Metallic titanium was observed in XRD pattern of the electrolytes after experiment by means of constant-current electrolytic Na2TiO3 in a CaCl2-CaF2 melt at 850°C.Thendepending on the electrolytical residua,titanium aluminium alloy could be obtained by calcining with Al powders.
Electrification Theory and Experimental Research of Aluminum-Based Metallic Material
Authors: Zheng Hui Zhi , Hu Xiao Feng , Fan Gao Hui , Zhang Xiao Yong
Published: August 2013

Aluminum-based metallic material as the frame or the skin material is widely used in vehicle industrial production. The electrostatic charge accumulate on the surface of the material,because of triboelectrifiction with space particles. And the electrostatic discharge would impact the vehicle or appliance around enormously. In order to study the triboelectrifiction, principle of space particle and space charge is analyzed and theoretical calculation formula is derivate. The fact is found that the charge of material is growth in negative index with time dependence, and get steady at the end. The saturation value and saturation time will be decrease when the charge factor of space charged particle increases. To make sure the conclusion is right, a part material of one aerial vehicle is taken into the test. From the experimental results of different material, angular velocity and contact area, the conclusion gotten above is proved by test data.
Sediment from the Yellow River Salvaging as Glass-Ceramics
Authors: Wang Shuang Hua , Li Yin Xia , Yang Yong , Zhang Heng
Published: August 2013

The glass-ceramics was prepared by the whole crystallization process using the sediment from the Yellow River as the main materials. The sediment using from Huayuankou in Zhengzhou was melt at 1200°C for 2 hours to get the clarifying and homogeneous glass liquid. The modeled glass liquid was annealed and fired to get glass-ceramics. The glass-ceramics with natural texture and soft colour can supply better architectural effect and the microstructure was combined the crystal and the glass phase with the help of scanning electronic microscope (SEM).
One Method for Estimating Normal Contact Stiffness with Ra and Adhesion Rate
Authors: Wang Peng , Li Tian Yun , Zhu Xiang , Pan Guo Xiong
Published: August 2013

Based on the fractal contact theory, the model about the relation between normal contact stiffness and material properties as well as fractal parameters is established. Then by making use of the relation between fractal parameters and surface roughness, a new method for estimating the normal contact stiffness is put forward. The numerical results indicate that the contact stiffness increases as surface roughness decreases or adhesion rate increases. When the adhesion rate is constant, contact stiffness changes a little while Ra≥6.3μm, but the change is relatively bigger when Ra≤6.3μm. Considering both the cost of surface machining and the influence of contact stiffness on the whole system, the surface roughness is suggested to be Ra=6.3μm. The results provide theoretical supports for vibration isolation analysis with gaskets and the process of low-noise construction.
A New and Sensitive Hydride Generation-Nanosilver Resonance Rayleigh Scattering Spectral Method for Trace Se (IV)
Authors: Huang Shan Shan , Liang Ai Hui , Tang Mei Ling , Jiang Zhi Liang
Published: August 2013

In HCl solution, the Se (IV) was reduced to SeH2 by NaBH4, and absorbed by solution of ethanol-AgNO3. The Ag+ was reduced to nanosilver, which led to the resonance Rayleigh scattering (RRS) peak at 366 nm increased. Under the selected conditions, the RRS intensity at 366 nm was linear to the concentration of Se (IV) in the range of 0.05-2.0 μg/mL, a detection limit of 0.02 μg/mL. The proposed method was applied to detect Se (IV) in water samples, with satisfactory results.
A Performance Study of Self-Piercing Riveting of Aluminum and Copper Alloy Sheets
Authors: Deng Cheng Jiang , He Xiao Cong , Xing Bao Ying
Published: August 2013

This paper studied the performance of self-piercing riveting (SPR) of aluminum and copper alloy sheet. The SPR process of two copper alloy sheets was analyzed by experimental tests and finite elements stimulation, and good agreements between the simulations and test results of SPR process were obtained. Two different specimen geometries were adopted in experiment: a lap-shear type specimen and a T type specimen. The influence of combination of different materials on the static strength of SPR joints were studied through the tensile-shear and peeling experiments, and the strength of the SPR joints were evaluated by the force-displacement curves of two type specimens. The failure mechanisms corresponding to the static strength were also discussed. On the other hand, the engineering stress - strain curves of two materials have also been studied roughly. These results could provide designer engineers with some application messages of SPR.
Carbon Fiber Application Analysis in the Apparel Field
Authors: Zhao Yu Xiao , Shi Li Min , Li Ya Li
Published: August 2013

As a new chemical material, carbon fiber is widely used in national defense and civil industries due to the strong tensile strength of carbon and the flexibility and workability of fiber. Through collecting and sorting relevant data, this paper summarized and analyzed the application of carbon fiber in apparel industry, especially in the field of electrical heating clothing, meanwhile pointed out a few issues to be solved for carbon fiber heating clothing in terms of safety, buttery durability, construction and fabric etc.
Characterization and Performance of SO42- / SnO2 / MCM-41 for α-pinene Isomerization
Authors: Wu Chun Hua , Qin Yong Jian , Dai Xue Yu , Du Guan Ben
Published: August 2013

Mesoporous MCM-41 molecular sieve was synthesized hydrothermally and selected tetraethoxysilane as silica source. Solid superacid SO42- / SnO2 was supported on MCM-41 by dipping and roasting. The samples were characterized by XRD, TEM, and FT-IR. Solid superacid evenly dispersed on MCM-41 with a good pore structure. Their catalytic activities were evaluated in the isomerization of α-pinene. The results show that samples had a good conversion rate and selectivity.
Rheological and Thermal Properties of Blends of Recycled LDPE and Virgin LDPE
Authors: Zhao Xue Yan , Luo Xue Gang , Lin Xiao Yan , Qi Xiao
Published: August 2013

Blends of recycled LDPE and LDPE were prepared by the twin-screw extruder at different ratios. Recycled LDPE was used as matrix in this work, LDPE was used to improve the properties of RLDPE. Thermal and rheological properties of the blends were carefully evaluated and compared with pure LDPE. DSC measurements indicates that the RLDPE/LDPE blends are miscible in the crystalline phase and LDPE can increase the crystallization of the blends. Rheological analysis shows that virgin LDPE will promote the normal flow of RLDPE and improve the mobility of chain segments in flow. Consequently, the rheological and processing properties of the blends have improved compared to RLDPE. The blends show potential applications in high-value products.
Spontaneous Formation of DTAB/SDBS Vesicles
Authors: Cui Lin Lin , Guan Hua Nan
Published: August 2013

Dodecyl trimethyl ammonium bromide/sodium dodecyl benzene sulfonate (DTAB/SDBS) complex formulation of scale effect on the spontaneous formation of vesicles and the influence of different factors on the stability of vesicles were discussed, structure and morphology of vesicles were observed.
Synthesis and Electrochemical Performance of Spinel LiMn2O4 Modified by CNTs
Authors: Zhang He , Zhang Zheng , Zhao Ling , Liu Xing Quan
Published: August 2013

The spinel LiMn2O4 was synthesized by high temperature solid-state reaction and modified by coating carbon nanotubes (CNTs) which was used as the carbon source. The effect of different coated quantity on the electrochemical performance of spinel cathode materials was discussed. The morphology and structure of the material was characterized by SEM and XRD. The results indicated that the crystal grew well and morphology displayed excellently. Based on electrochemical performance test, the conclusion could be drawn: at 0.5C1C2C rate, the initial discharge capacity of LiMn2O4 coated by 5%wt CNTs was 100.5113.1103.6mAh/g respectively. After 20 cycles, the capacity maintained at 115.5111.3101.1mAh/g, which displayed better capacity retention.
Synthesis of Di(Chloroethyl) Phosphite
Authors: Chu Hong Ying , Chen Zhi Ran
Published: August 2013

Organic intermediate di (chloroethyl) phosphite was synthesized in this work. The influence of reaction temperature, reaction time and solvent on the yield of product was investigated with orthogonal method. The experiment results show that the optimal conditions were molar ration of 2-chloroethannol / phosphorus trichloride 4.0:1, reaction temperature 65~75 °C, reaction time 4h, solvent 60 mL, and the yield of the product reached 89.5%. The asprepared di (chloroethyl) phosphite samples were further characterized by FT-IR and NMR.
Synthesis of High-Quality MCM-41 Using Silica Fume as Silica Source
Authors: Li Ming Ming , Zhu Wen Jie , Ma Wen Hui , Zhou Yang , Xie Ke Qiang
Published: August 2013

The high-quality MCM-41 was synthesized from silica fume with Citric acid and cetyltrimethylammonium bromide (CTAB) as template agents. Silica fume entered into liquid system in silicate and matched with CTA+. Mesoporous phase formed with the help of Citric and PEG-6000 in an acidic process followed. The structure and morphology of mesoporous silica material so-prepared was investigated based on the analysis of X-ray diffraction (XRD), N2 sorption/desorption (BET) and transmission electron microscopy (TEM). The results indicated that MCM-41 was successfully prepared by substituting silica fume for the traditional silica source of tetraethyl orthosilicate, and the MCM-41 displayed high quality with the pore sizes 4.3 nm, the BET areas 1058 m2/g, the total pore volume 0.862 cm3/g.
Thermoelectric Characterization of Direct Current Magnetron Co-Sputtering Zinc Antimonide Thin Films
Authors: Li Ying Zhen , Fan Ping , Zheng Zhuang Hao , Liu Peng Juan , Lin Qing Yun , Luo Jing Ting
Published: August 2013

Direct current magnetron co-sputtering was used to deposit zinc antimonide thin films on BK7 glass substrates at room-temperature. Then the films were annealed at 573 K to 673 K for 1 hour in Ar atmosphere. The results indicate that the Seebeck coefficient of the thin films increase from 30.5 μVK-1to 132.5 μVK-1 when the annealing temperature changed. The electrical conductivity of the thin films increases from 3.45×103 to 6.86×103 Sm-1 and the Power Factor is enhanced greatly from 0.03×10-4 to 0.99×10-4 Wm-1K-2 when the annealing temperature reached 598 K. X-ray diffraction result shows that the major diffraction peaks of the thin films match those of β phase Zn4Sb3 and high crystalline thin films are achieved after annealing.
Prepared for Potassium Sulfate of the Orthogonal Test in K-Feldspar-Phosphogypsum-Coke System
Authors: Yang Chao Qin , Xia Ju Pei , Wang Ya Ming
Published: August 2013

The four factors such as alcium silicon proportion, coke dosage, burned time and the addition of solubilizer are studied in poorer oxidative atmosphere at 1200 °C. The grade-analysis and visual preferred plan of orthogonal table are reappeared.The results show the indexs of visual preferred plan of orthogonal table are perfecter,therefore,the plan is used as preferred plan.The product is separated and characterized by infrared.The infrared map shows the product is potassium sulfate . The XRD inflection of samples is studied, waste residue is also effective ingredient besides potassium slufate.It is used again to avoid secondary pollution.
Modeling and Application of Coal Pulverizing System for Coal-Fired Power Plant
Authors: Yu Tong , Yuan Jing Qi
Published: August 2013

A mechanism model of coal pulverizing system is developed to calculate the coal powder flow rate entering the combustion chamber with the data of a 300MW coal-fired power plant. This model is going to be used to improve the identification accuracy of the calorific value, which usually takes the coal flow rate entering the coal feeder as the input. The model parameters are based on the structural and operational data of the pulverizing system. Results of the pseudo online identification of the caloric value demonstrate that the model can capture the dynamic properties of the system with relatively high accuracy. Therefore, there is potential application of this model to improve the control performance of the utility boiler.
A Study of Ore-Controlling Factors and Metallogenic Mechanism of Lead-Zinc Deposit in Luziyuan, Zhenkang, Yunnan
Authors: Lv Chang Liang , Deng Ming Guo , Zeng Lei
Published: August 2013

The lead-zinc ore in Luziyuan, Zhenkang Town, Yunnan Province is a large lead-zinc polymetallic deposit discovered in recent years. The ore body mainly occurs in the stratum of Shahechang Group of Upper Cambrian. Controlled by NE trending faults and its flanking associated structures, it features equal interval and lateral trending distribution in the spatial domain. The development and mineralization of wall-rock alteration experienced two stages, low medium temperature stage and medium-high temperature stage. Metallogenic materials are mainly from the ore-bearing stratum and deep concealed rock mass. Through the study of such geological features as lithology of ore-bearing stratum, structure of ore-controlling Faults, wall-rock alteration, and ore fabrics, the author believes that the formation of the deposit is closely related to the multi stages of tectonic movements and magmatic hydrothermal activities. It is a sedimentary-reworked type, and skarn-type lead-zinc-iron polymetallic deposit and it is of multiple mineralization stages and varieties of mineral sources.
UM2000 Spectrum Estimation Using Multiple Signal Classification Method
Authors: Liu Shen , Wang Fu Ping , Liu Xiu Cheng
Published: August 2013

This paper focused on UM2000 signal spectrum estimation using MUSIC algorithm. Because of the limitation of data window length, traditional frequency discrimination methods fail to meet the requirement of high frequency resolution. In this paper, the influence of SNR on MUSIC spectrum estimation is analyzed and MDL (minimum description length) principle is used to determine the dimension of the signal. Simulation results based on several other modern spectral estimation methods are also presented and compared with that of MUSIC method, from which the superiority of MUSIC method is verified.
Research Status of Broken Belt Protector in Belt Conveyor
Authors: Liu Xiu Lian , Liu Xun Tao , Wang Ai Fang , Wang Hong Guang
Published: August 2013

A belt conveyor is a kind of major equipment to carry loose materiel and is widely used in industries such as mine port, metallurgy, etc. for its numerous advantages. But Because of the influence of belt itself and outside factor, the accident that the belt is cut off often appears, which make a grate threat for safe production. Gives detail introduction to several types of broken belt protectors used in home, analyzes its working principle and advantages and disadvantages, provide certain reference for the user choice.
Analysis of Variable Section Piezoelectric Harvester
Authors: Zhou Yong , Li Shi
Published: August 2013

This paper first presents an analytical model for investigating the vibration performance of a thin curved laminated piezoelectric beam with variable curvatures and transverse sections. This kind of beam is widely used for the MEMS piezoelectric vibration energy harvester. The curved thin beam theory with bisymmetric section, here rectangular section used, is employed to explore the bending and twisting coupling vibration characteristics. In order to study the vibration properties with concentrated load, the effects of the tip proof mass isnt used. The paper also shows that the adoption of ANSYS software to carry out the MEMS piezoelectric vibration energy harvesters numerical simulation can improve the efficiency of the harvester designing and manufacturing consumedly. The results showed that the maximum voltage at the resonant point was increasing while the initial curvature radius increasing. On the other hand, the voltage difference of the inner edge and the outer edge was very small because the matrix layer was PDMS with very small stiffness and density.
New Construction Machinery Developed in Ultra-Deep High Pressure Jet Grouting Pile
Authors: Wang Chuan Li , Sun Shu Qing , Xia Jian Zhong , Qian Bo , Li Yong Sheng , Wang Zhi Xin , Ni Chun Xiao
Published: August 2013

High pressure jet grouting pile has been widely used in engineering application, with the increase of depth, demand for construction machinery will increase, also the difficulty of the construction quality control. Through the deep soft soil area in southeast coastal areas in fujian actual engineering example, we have improved ultra-deep Yet Grouting Pile machinery to meet the construction requirements.
Permafrost Hazard of MoHe-DaQing Crude Oil Pipeline
Authors: Ma Yun Bin , Tan Dong Jie , Jing Hong Yuan , Xue Quan , Zhang Cheng Zhi
Published: August 2013

The crude oil pipeline from MoHe to DaQing (hereafter called Mo-Da pipeline) is part of China-Russia oil pipeline. Mo-Da pipeline is the first pipeline that through high latitude cold regions of China. The pipeline is in so complicated geography environment that many kinds of permafrost hazard are easily to happen including frost heave, thaw settlement, slope instabilities, and collapse and so on. The pipeline and the permafrost act and react upon one another. On one hand, soil frost heave and thaw settlement can produce extra stresses on pipe walls, which may result in centralized stresses and plastic deformations under certain conditions, even causes pipeline faults. On the other hand, buried pipeline will disturb ambient environment and then degrade the permafrost soil and finally impact safety of the pipeline. This paper mainly introduces the permafrost hazards of Mo-Da pipeline and demonstrates some methods for monitoring the influence of permafrost.
Research and Development of Gravitation Electro-Galvanizing Testing Apparatus
Authors: Zhang Xue Rong , Yan Kai Yong , Chen Yan Cai , Zhang Tang Zheng , Huan Dao Bing
Published: August 2013

Putting forward a kind of flexible electroplating method based on the fission type vertical plating bath, A new type of gravitation electro-galvanizing testing apparatus was developed. This paper expatiate the design thought of the testing apparatus, and introduces the design principle and constituent as well as the technological process. Using the device, the author completed various plating of gravity test under different parameters, and verified the integrity and reliability of the device. This testing apparatus consists mainly of zinc dissolving, fluid mixing, electroplating and cleaning. Mechanical configuration of this apparatus is gather together, Control system is credibility, Technologic target is advanced, Work pieces install and remove is convenience. The parameters of solution speed, solution temperature, solution concentration, and the distance of negative and positive node are controllable and adjustable. This apparatus support accurate and reliable method for enterprise in developing new product, diagnosing product defect and optimizing process.
Study on Assembly Design Approach Based on Synchronous Modeling Technology
Authors: Hua Bin , Wang Xue Jun , Liu Xiao Chen , Luo Yong Sheng , Ding Yan Fang
Published: August 2013

With the increase demand for product diversity, the best way is to shorten design cycle of product and improve design efficiency. This paper presents an assembly design method of product by means of the use of Solid Edge ST4 3D synchronous modeling technology. In this paper, an industrial manipulator was studied as an example, which was used to account for the design process of assembly design based on synchronous technology and the characteristic of this design method. In the process of design, intelligent assembly technology, top-down assembly technology and synchronous assembly technology are combined with the design of industrial manipulator. The results show that this assembly design method is more convenience to modify design model, can greatly improve design efficiency and accuracy and reduce the iterative design process of similar model, thus greatly improve the product quality.
The Analysis on Influence of Test Error of Voltage Transformer Primary Test Circuit Causes on GIS and the Improvement of Test Method
Authors: Zhang Zhi Long , Su Hong
Published: August 2013

Recently, the Gas Insulated Station (GIS), small floor area ,convenient maintenance and good security ,is applied more and more extensively, but it becomes difficult to calibrate the error of measuring voltage transformer in main circuit on GIS with the application. According to the regulations, high voltage must be imposed on high voltage incoming line bushing in the high voltage test to voltage transformer. However, primary test circuit is long because of the long distance between the high voltage incoming line bushing and the tested voltage transformer, which makes the loop impedance large, so the measuring veracity is affected. In this paper, the Finite Element Method (FEM) is used to determine calculation model of each element on GIS station combined with 110kV station called rocket base in new coastal region, then Electromagnetic Transient Program (EMTP) is used to design the calculation model of the GIS station. The influence of test error of voltage transformer the primary test circuit causes is analyzed in theory. The experiment that the voltage imposed on low voltage side is used to measure the error of high voltage side is made to verify accuracy of the method in this paper.
Fault Diagnosis System of Large Wind-Driven Generator Based on Virtual Instrument
Authors: Yang Wen Zhi , Tan Hao Guang , Feng Zhi Bin
Published: August 2013

According to the requirement of fault diagnosis of wind-driven generator, proposed private solutions of fault diagnosis system for large wind-driven generator, developed signal processing and fault diagnosis software based on LabVIEW, designed and produced a prototype of fault diagnosis system, simulated on the fault diagnosis of simulation test bench, verified the feasibility and effectiveness of the fault diagnosis system.
Automotive Interior Parts Molding Process Simulation and Parameter Optimization
Authors: Tan Yin Wu , Wang You Min , Zhou Ge , Du Xiao Yang
Published: August 2013

By the use of UG software，the solid model of the interior decoration board inside the automobile door was created and the molding behavior of the plastic product was simulated and analysis in the virtue of Moldflow．Based on the analysis of the effect of the mould parameter on the molding behavior ,the best gate location was achieved.We designed the L9(33) orthogonal experiment table of the parts injection molding,selected the mold temperature, melt temperature, injection pressure as the factores .Sink mark index, volume shrinkage, maximumwarping deformation and cavity residual stress are determined as the parts quality evaluation. We completed the orthogonal experiment and the range analyses of the results. We analyzed the influence of process parameters on evaluation of every optimal direction,developed evaluation for comprehensive quality of parts. Finally, we get the table showing the tendency on the assessment of the quality index influenced by various factors, which provides a foundation for the approaching research on the parameters of the injection molding process.
PHD Filter for Multi-Radar Multi-Target Tracking
Authors: Tian Shu Rong , Sun Xiao Shu , Sun Xi Jing
Published: August 2013

Target tracking with multiple radars is more efficient than tracking with one radar. In this paper, a multi-radar tracking system is proposed even when targets are occluded at radars. Observations from all radars are composed, then, Probability Hypothesis Density (PHD) filter is used to estimate the multi-target state and the number at each time step. PHD particle filter implementation is used to perform the proposed method consisting of multiple mameuvering targets.
Transform Three Mechanical Stepless Simulation Darkening Welding Helmet Design
Authors: Xiao Jian Bo , Xie Xi Ling , Zhang Hao
Published: August 2013

In order to facilitate the general works fine welding operations, improve efficiency, and will not be ordinary dimmer welding mask designed to be stepless variable optical mask. Manually inserted variable optical mask based on three design methods eyepiece round, open welding vision, and the production method is simple, after the reform of the mask can be stepless dimmer. Cost, almost no maintenance cost, worth promoting. This restructuring of the mask is purely mechanical, without the use of power, battery, more energy saving and environmental protection.
Civil Unmanned Aircraft System Maintenance Structure
Authors: Wang Lin Lin , Wu Zhi Wen
Published: August 2013

Three maintenance structures of avionics were investigated in the article, including centralized intermediated repair concept, three-level maintenance structure, and the two-level maintenance structure. Both the advantages and disadvantages of these three maintenance structures were fully discussed, especially the potential in civil UAS maintenance. The investigation result shows that the two-level maintenance structure is the best choice for the civil unmanned aircraft maintenance at present. Key technologies of the two-level maintenance structure used for civil UAS were also discussed in this article. The advisements were given in these discussions.
Key Component Design of Environment-Friendly Jujube Takes Core Machine
Authors: Shan Quan , Chen Yan
Published: August 2013

Environment-friendly wild jujube takes core machine is proposed in the current serious water pollution situation. At the time of take jujube core, the jujube core and jujube meat is difficult to separate. So, it needs to use a lot of water to flush the jujube meat. The wastewater, which contains jujube meat, brings great pollution to the environment. To solve this problem, the existing jujube core extraction technology is analyses firstly. Then a new project of jujube take core machine is proposed in this paper. This new project can separate the jujube core and the jujube meat in the same machine. The detailed structure calculation and kinematics analysis of the new machine key components, such as the broken device and the separate device, were done on the computer. Finally, according to the design result, using the software Pro/ENGINEER, the prototype machine was designed and manufactured, then test lots of times. The experiment proved that the machine can effectively reduce water consumption and the volume of sewage to achieve the purpose of environment protection.
Proposing a Revised Definition of Perpetual Motion Machine
Authors: Shyu Yuh Huei
Published: August 2013

t was shown recently that the conclusion of the non-existence of perpetual motion machines (PMM) is based on a sound yet incomplete proof. The implication of this result is that whether or not we can construct a PMM is still unknown. This result directly challenges mainstream scientists long times belief: It is impossible to construct a PMM. Traditionally, mainstream scientists use laws of thermodynamics to conclude the non-existence of perpetual motion machines. We believe that mainstream scientists still pin their faith on their belief unless a workable PMM can be constructed. Conventional definition of PMM is very subjective. Under this kind of definition, it is very hard to construct a PMM. We need an objective definition of PMM to start with. In this paper, we will clarify the theory of PMM. Then, we will propose a revised version of definition of PMM. Clarifying the related theory will help us to tackle the PMM problem in the right direction. The revised definition of PMM will provide us useful guidelines to construct a workable PMM.
Research on Micro-Heater Based on Pt-100
Authors: Jiang Juan Na , Zhang Fei , Liu Bing Xin , Zheng Teng Fei , Wang Chao Hui
Published: August 2013

According to the practical requirements of tin-based brazing technology in micro-metal weld, a new type of micro-heater based on thin Pt-100 film aiming to heat a tiny metal support block in a limited space is introduced in this paper. The simulation shows that Pt-100 micro-heater could totally meet the demands. And the performances of micro-heater devices have been tested under thermal property experiments.
Study on Redundant Constraint in Mechanism Design
Authors: Lu Pin
Published: August 2013

Two kinds of redundant constraints in mechanism and the application are discussed in this article.The calculation method of degree of freedom are given about two kinds of redundant constraints. The roles of redundant constraint for mechanism s function is analysed.Some questions is noticed in mechanism design.
Design of Outdoor Vehicles Computer Dispatch System Based on GPS
Authors: Huang Shu Wei , Wen Dan Li , Jin Fu
Published: August 2013

The outdoor vehicles computer dispatch system based on Global Positioning System (GPS) was discussed. This system integrates computer, wireless digital communication, GPS positioning system, networking protocol, optimal dispatching management and software, and realizes the real-time intelligent optimizing dispatching of monomer mobile equipment.
Research on Direct Wave Separation of PD Ultrasonic Signal Based on ICA
Authors: Hou Shan Shan , Xie Qing , Shi Le Xian , Hu Wei Tao
Published: August 2013

For partial discharge of transformer ultrasonic detection method exists positioning accuracy problems, the main reason mostly due to the time delay selected error is analyzed, while the main reason for time delay selected error is due to the transformer PD ultrasonic signal propagation which is extremely complex, the signals received by the ultrasonic sensor are the direct wave, non-direct wave and a mixture of all kinds of noise superimposed, so in order to improve positioning accuracy the correct separation of the direct waves time delay is important, this paper proposes a method of transformer PD direct wave ultrasonic signal separation based on independent component analysis (ICA), by a separate analysis of the direct wave signal, non-direct wave signal and noise characteristics of each principal component, the use of ICA to separate from the mixed signal to extract the direct wave signal and select the time delay, simulation and experimental results demonstrate the feasibility of the method.
The Design on Temperature Monitoring System for Traditional Fermentation Process Based on WiFi
Authors: Zhang Yade , Zhang Tian Shun , Wu Hong Gang , Duan Mei Ying , Zhang Yin Song , Lu Shao Kun
Published: August 2013

This paper introduces a design about a temperature monitoring system for traditional fermentation process. C Language , C #Socket Communication mechanism combined with wireless sensor network technology and WiFi wireless communication technology, are used for monitoring the temperature changes throughout the fermentation process. The sensor nodes collecte temperature during the fermentation process. First, the aggregated data is collected to a concentrator, then transmitted to the application server via WiFi wireless network. User can use a computer or cell phone to access the Web server for acquisition of the related fermentation temperature data via the Internet. These data can provide the support for further study on how to improve the fermentation yield, shorten the fermentation cycle and reduce the consumption of raw materials.
Based on the AVR Micro Controller's Serial Communication Protocol Implementation
Authors: Jiang Bing Hua , Liu Fang Bing , Liu Huan , Song Lei , Song Rui
Published: August 2013

Single-chip microcomputer and PC for data transmission,Using a serial port communication protocol,This paper will through the custom serial port communicatio protocol,Through the analysis of the serial port communication protocol packet format,Resolve the Host computer or slavecomputer(AVR MCU) serial port to send and receive over the packet,Shown in serial debugging assistant,And gives the specific implementation method.
A MapReduce Telecommunication Data Center Analysis Model
Authors: Yang Wen Chuan , Wang Jiang Yong , Zeng Hao Yu
Published: August 2013

With the widely use of smart phone in China, all inputs and routes packets streams to the Content Distribution Service (CDS) switching centers. Each produces up to 1.5 terabytes arriving every day. Normally, the job of the switch is to transmit data. Obviously, the ordinary database cannot handle the massive dataset and complex ad-hoc query. In this paper, we propose DeepMR, a MapReduce deep service analysis system based on Hive/Hadoop frameworks. A distributed file system HDFS is used in DeepMR for fast data sharing and query. DeepMR also optimizes scheduling for switch analysis jobs and supports fault tolerance for the entire workflow. Our results show that the model achieves a higher efficiency.
A New Automatic Modulation Classifier Using Swarm Intelligence-Trained Neural Network
Authors: Cheng Li , Liu Jin
Published: August 2013

Monitoring modulation type of the detected signal is the most important intermediate step between signal detection and demodulation. The back propagation neural network (BPNN) was widely used in constructing modulated signal classifier in the field of automatic modulation classification (AMC). There are many visible features in the back propagation (BP) algorithm including adaptive learning, the ability of fault tolerant, etc. However, this algorithm has two main disadvantages, such as the slow convergence speed and easily falling into the local minimum. This paper presents a novel modulation classifier using BPNN trained with swarm intelligence algorithms (SIA), for the sake of overcoming these deficiencies. The initial weights and thresholds of BP neural network were optimized by SIA. As the SIA has an excellent global search property, this classifier can consume less training time and improve the automatic modulation type identification rate.
A New Type of Deaf-Mute Sign Language Recognition System Based on the Mobile Communciation Platform and Terminal Equipment
Authors: Zhao Si Ning , Wang Mao Rong , Wei Zhen
Published: August 2013

This paper presents a new type of deaf-mute sign language recognition system by combining mobile communication platform and the mobile communication terminal equipment. The system can implement the vision-based sign language recognition and translation. A Standard Sign Language Database is established in this system. Multi-national and multi-language sign language recognition can be completed by the following training using the database. In order to improve the accuracy of the recognition of similar sign language, an improved HMM sign language recognition method is used in this paper. The angle information of sign language which can be achieved by the traditional data-glove is introduced in the system on the basis of visual methods, makes the system taking into account these two recognition technology. The system can be implemented in ordinary mobile terminal equipment. Low cost and popularity of sign language recognition device can be realized. The deaf-mutes communicate for barrier-free anytime and anywhere by the application.
A Novel Approach on Automatic Building of Word Correlation Net Based on Statistic
Authors: Yang Chang , Zhang Hao , Zhou Xue Guang , Wang Yang
Published: August 2013

Semantic knowledge-base has important meaning for increasing the deepness of NLP. Some comparatively mature Semantic knowledge-base such as WordNet, HowNet and Thesaurus was developed by manpower, and has many difficulties on actual application. In order to capture Chinese word knowledge of relating status moue automatically and demonstrably, this paper presented the concept of word correlation and a calculation method of word correlation based on statistic. Then a correlation net based on Chinese words which have strong domain characteristic was built. In order to resolve the difficulty of processing the huge amount of data, a hard disk storing method of array segmentation was designed. The semantic knowledge gained by the experiment had the advantage of empiricism. It is veracity and generalization is strong so it can play an important role in many fields such as text categorization, text retrieval, text filtering, etc.
A Review of TFT-LCD Panel Defect Detection Methods
Authors: Jian Chuan Xia , Gao Jian , Chen Xin
Published: August 2013

TFT-LCD panel defect detection has been one of the difficulties in this field because of fuzzy defect boundary, low contrast between defects and background, and low detection speed. The structure of TFT-LCD panels and classification are introduced. Through the analysis of panel defect features, current detection methods for the TFT-LCD panel defects are reviewed. The key technologies of feature extraction and defect classification are analyzed in the defect image recognition of TFT-LCD panel. Meanwhile the methods of fuzzy boundary defect segmentation, image subtraction and image filtering are also discussed. Finally, the characteristics and advantages of these detection methods are concluded, and several key issues for the TFT-LCD defect detection have been proposed for future development.
Analysis on the Surface Subsidence Regular about Paste Filling Mining under the Buildings
Authors: Qi Xiu Dong , Cheng Xiu Zhen
Published: August 2013

In order to extend the life of enterprise, solve conflicts about mine connection and promote the sustainable development of coal enterprise，paste filling is adapt to the mine under buildings in Jiaozuo coal group zhucun and the observation station of ground movement is laid out. Through the analysis of observational data, the regular of the movement and deformation of the surface is found under the geological and mining conditions, which provides the technical basis for coal mining under other similar conditions. It has the important theoretical value and practical significance.
An AFC System of Digital Scenic Areas Based on Decision Tree Classification
Authors: Wan Meng , Ying Zhan Feng , Wu Jun Ji
Published: August 2013

Ticket gate system was one of the key parts of AFC system of digital scenic areas. In order to raise the passing rate of ticket gate system, one kind of access rules based on decision tree classification was provided in this paper. According to the access rules, ticket gate system was divided into 4 areas and each area was equipped with 4 opposite-type laser photoelectric sensors. The system obtained sensors statuses and judged areas statuses using decision tree classification when an object passing the walkway. A comprehensive control command which could drive other apparatus such as voice prompt module and the LCD was given by the system. Structure and hardware of ticket gate system were also provided. Two experiments were conducted for testing the passing rate of the ticket gate system. The results prove that the access rules are effective.
An Image Segmentation Method Based on Adaptability Threshold
Authors: Li Hui , He Ping
Published: August 2013

Automation strain measurement of the sheet metal deforming becomes one of the important application fields of computer vision. The algorithm of image segmentation based on adaptability threshold was presented for image segmentation of metal steel. In order to validate the proposed method, it is tested and compared with Ostu method and the one-dimensional maximum entropy method. Experiment results indicate that the method is simple and effective, and has an advantage of reservation of the main features of the original image.
Analysis on the Target Distribution Equivalent of the Anti-Ship Missile
Authors: Lu Fa Xing , Liu Shu Kan , Zhao Bo Wei
Published: August 2013

Based on the analysis of statistic characteristics of target distribution area of the anti-ship missile, three kinds of equivalent calculation model and graphical programming on it were presented. On this condition, some simulation tests on typical situation were carried out and contrastive analysis of the three distribution area of equivalent calculation methods, so as to obtain the applicable situation of each.
Application of Improved LMD in Gear Fault Diagnosis
Authors: Teng Rui Jing , Zhou Xiao Jun , Yang Chen Long , Li Zhao
Published: August 2013

Local mean and envelope functions are obtained by moving average method in local mean deocompsition (LMD). If the moving average step length is not suitable, the calculation will be very slow. LMD based on cubic interpolation was proposed, which makes the calculation much faster. To restrain the endpoint effect, the extension model based on the mean generating function was proposed. Analysis results of simulation signal and gear fault data show that the proposed method is effective .
Approximate Processing Method of Random One Direction Singular Rough Sets
Authors: Guo Zhi Lin
Published: August 2013

Based on the concept of one direction singular rough sets , according to the random characteristics of element transfer, the concept of random one direction singular rough sets is proposed, and the one direction singular rough sets random generation is obtained. Combining the probabilistic characteristics of element transfer, the random characteristics of random one direction singular rough sets are discussed. the definitions of upper and lower boundary are given, and the measure of relative precision is provided. Furthermore, an approximate processing method is also obtained.
Data Acquisition System Connect to CMG-3T Low-Frequency Seismic Pendulum
Authors: Liu Ting Ting , Wu Yong , Lin Jun
Published: August 2013

Aiming at the low-frequency performance of the lowfrequency seismic pendulum CMG -3T, we design a data acquisition system can acquire the low-frequency seismic waves, at the same time we accomplish the process of adjusting the CMG-3T. This paper gives designing scheme include the low noise design of the power module, the design of the connector to RS232 which can send command to adjusting the mass of CMG-3T,the design of voltage attenuation network and no-source low-pass filter network of data acquisition system, the last is the design of software for adjusting the CMG-3T.
Research on Foreign Body Detection for Granular Material Based on Feature Weighted OCSVM of Color Recognition
Authors: Zhou Ji Mei , Zhang Ze , Xiang Yan Li
Published: August 2013

In granular materials processing, how to efficiently recognize and remove foreign bodies is very important. Training data including H,I mean and I standard deviation of target material are distinguished to be foreign bodies or not by training model, which is established using FWOCSVM method, while taking into account the characteristics of foreign body detection. A way to introduce the weight value reflecting the importance degree of attribute with its mean square deviation is developed to solve the problem, that is, attribute weights are not considered in OCSVM. The results show that FWOCSVM has more excellent performance than that of threshold or OCSVM .And color features adopted in the paper have excellent identification performance in above foreign bodies detection.
Research on Jiangxi Tourism E-Commerce Platform Construction
Authors: Zeng Zhou Yu , Ye Xiong Ying
Published: August 2013

With the development of information technology, the development of wisdom travel to represent the general trend, which is not only conducive to the development of tourism enterprises, but also conducive to the development of the tourism industry. Jiangxi wisdom tourism e-commerce platform construction is a systematic work, the relevant units should attach great importance to this work, and actively carry out cooperation, coordination, project group should be in line with the service of tourism enterprises, scenic area, the principle of mutual benefit, do research, development and function of the system extension work.
Research on Session Replication Schemes
Authors: Liu Ping Ping
Published: August 2013

Session replication is the common user demand of web application. Good session management program can enhance the user experience. At the same time it doesnt increase the burden of system operation. The paper mainly analyses on the five commonly used session management program. And it compares the topological structure, advantages and disadvantages and the difficulty level of realization of five session management program.
Research on SVM Cell Concentration Prediction of Erythromycin Fermentation Process Based on Ant Colony Optimization
Authors: Tian Li , Wang Qiang Qiang , Cao An Zhao
Published: August 2013

Due to disadvantages of nonlinear, complexity and uncertainty of fermentation process, a research on cell concentration prediction of erythromycin fermentation process was carried out. Combining the optimization ability of ant colony algorithm and the regression ability of support vector machine, an ACO-SVM model is built. Case study shows that, the model is more accurate and more effective for the cell concentration prediction than ANN and SVM model.
Teleportation of an Unknown Three-Particle Entangled State via a Cluster State
Authors: Yu Li Zhi
Published: August 2013

Two schemes of teleporting an unknown three-particle entangled state from the sender (Alice) to the receiver (Bob) are proposed. In both schemes, a four-particle maximally entangled cluster state and a four-particle non-maximally entangled cluster state are used quantum channel, respectively. It is shown that if the quantum channel is the maximally entangled cluster state, the unknown three-particle entangled state can be teleported perfectly with the successful probability is 1; if the quantum channel is the non-maximally entangled cluster state, the probability of successful teleportation is determined by two smaller superposition coefficients.