bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of BaO on Properties of Low Fluoride Content Mould Flux for High Speed Continuous Casting
Authors: Lu Yan Qing , Fang Xing , Zhang Guo Dong
Published: July 2011

In order to reduce fluorine pollution, partial fluoride could be replaced by BaO in mould flux. The effects of BaO on melting temperature, viscosity, fluidity, surface tension, Al2O3 inclusion and adsorption of low fluoride content mould flux for high speed continuous casting were studied, as well as the effect of basicity on crystallization property. The results showed that with the increase of BaO content, melting temperature, viscosity and surface tension of mould flux decreased obviously, and fluidity and Al2O3 inclusion adsorption increased. Partial fluoride could be replaced by BaO in mould flux. The BaO content should be less than 4 per cent so that it can play an effective role. The basicity had great influence on crystallization property.
Study on Tungsten Carbide Leaching of Cemented Carbide Tool in Sodium Carbonate Solution
Authors: Jia Xiao Ming , Song Yue Xing , Chen Xiao Xin , Zhang Xiu Ling
Published: July 2011

In the cutting progress, the cutting temperature and the friction will be reduced when the water-based cutting fluid is used, but some elements in the cutting fluid will result in the leaching of tungsten carbide in cemented carbide tool. The influence rule of sodium carbonate on the tungsten carbide leaching of cemented carbide under the condition of different temperatures and different concentrations is investigated by soaking experiments, SEM analysis, energy spectrum analysis and electrochemical detection experiments. The experimental results reveal that the influence of sodium carbonate on the tungsten carbide leaching are great, and the leaching rate will increase with the increasing of temperature and concentration.
Study on Medical Polyvinyl Alcohol (PVA) / Polyvinyl Pyrrolidone (PVP) Hydrogel Wound Dressing
Authors: Zhang Shu Di , Zhai Yu Chun , Zhang Zhen Fang
Published: July 2011

Polyvinyl alcohol (PVA)/polyvinyl pyrrolidone (PVP) hydrogel wound dressing has been fabricated using freezing-thawing method. The content of water, the rate of water absorption and pH value of hydrogel were tested, The mechanical properties and water transmissivities of hydrogels were analyzed when the PVP contents were difference. Experiments results show that the hydrogels diaphaneity is better, water contents are over 70percent; water transmissivity of hydrogels are over 100 percent, the highest value reaches to 204 percent; the pH value closes to the level of human body, the highest pH value reaches to 6.83; the tensile strength of hydrogel is 0.75 MPa when PVP content is 8 percent, reaches to the largest value; all of PVA/PVP hydrogels water transmissivities reach to 700 g·m-2·24h-1.
Investigations on Poly(Ethylene glycol) Modified P2O5-CaO-SiO2 Gel Bioglass
Authors: Fan Qun Ying , Liu Wei , Feng Miao , Zhan Hong Bing
Published: July 2011

We report the synthesis and characterizations of Poly(ethylene glycol) (PEG) modified P2O5-CaO-SiO2 gel bioglass. Three kinds of PEG with different molecular weight (400，6 000，10 000) were used in the preparation and their influence on the nanostructure of the resultant gel bioglasses was investigated. Due to the excellent aqueous solubility and compatibility of PEG with the inorganic P2O5-CaO-SiO2 components, no phase separation was detected in the hybrid gel glasses under scanning electron microscopy (SEM) observation. FT-IR spectra indicate that hybridization between the organic and inorganic part was successfully achieved at the molecular level. SEM images and N2 adsorption-desorption experiments show that, among the three samples, S6 000 is the most promising candidate for bone scaffold material, because of its hierarchical pore structure, high porosity and surface area.
Study on Polyvinly-Alcohol(PVA)/ Iron Oxide Black(Fe3O4) and Polyvinly-Alcohol(PVA)/ Iron Oxide Red(Fe2O3) Magnetic Sensitive Hydrogel
Authors: Zhang Shu Di , Zhai Yu Chun , Zhang Zhen Fang
Published: July 2011

Iron oxide black and iron oxide red magnetic sensitive to polyvinly-alcohol hydrogel has been fabricated using physical cross-linking method. The mechanical properties and swelling characteristics have been studied for different content, magnetic sensibility were tested using the vibration sample magnetometer, experiment results show that iron oxide red hydrogel has better mechanical properties, Percentage of swelling and loss rate of water of the polyvinly-alcohol hydrogel decrease with the increasing of the magnetic particles content, the change tendency is very like, cross-linking is increased with performance the swelling performance decreasing; PVA and Fe3O4 has good response from the SEM photo and IR spectrogram; its magnetic properties is better.
Synthesis and Spectroscopic Properties of 2-(7-Fluoro-1H-Imidazo[4,5-B]phenazin-2-Yl)-Phenol Derivatives
Authors: Lei Ying Jie , Ouyang Jie , Ding Mei
Published: July 2011

A convenient method to synthesize 2-(7-fluoro-1H-imidazo[4,5-b]phenazin-2-yl)- phenol derivatives 3a-d with substitute (s) X (X = H, CH2OH, Br, Cl) via the reaction of 7-fluoro- phenazine-2,3-diamine and bisulfite addition products of 2-hydroxy aromatic aldehydes in DMF solution with a yield of 80-85% was developed. Meanwhile, the ultraviolet absorption and the fluorescent spectra of these o-hydroxy derivatives of 1H-imidazo[4,5-b] phenazin were measured in methanol and one fluorescence band with a peak wavelength of 550nm with a Stokes shift around 134-141 nm for 3a-d was observed.
Optimization Research on Synthesis Conditions of Adsorption Materials for Lithium Extraction from Seawater and Brine
Authors: Liu Luo Feng , Zhang Yu Shan , Cao Dong Mei , Zhang Jia Kai , Zhang Hong Wei
Published: July 2011

Lithium extraction from seawater and brine is an important approach to solving the short supply of lithium resource. Development of ion-sieve adsorption materials is the key of realizing industrial application of lithium extraction from seawater and brine with high ratio of magnesium to lithium. Although the synthetic process is complicated, with plenty of influencing factors, levels, and large amounts of data, this research successfully optimized the synthesis conditions by orthogonal experiment and statistical analysis. The achievements will lay solid foundation for the development of lithium adsorption materials.
MEG and its Application in Drilling Fluid
Authors: Sun Yu Xue , Xie Yu Ning , Xiao Chang
Published: July 2011

Recently, oil-based drilling fluids are used mainly in horizontal wells, which are highly cost and have a poor performance to carry cuttings and may result in environmental problems because of the ineffective dispose of drilling waste. Therefore, a study is commenced to develop a water-based drilling fluid system (MEG drilling fluid system) that can satisfy the needs of horizontal well. The study begins with the molecular structure and properties of monomers about MEG. Then it selected the treatment agent which has a good compatibility with MEG, and confirms a best formula of MEG drilling fluid system. By the comparison between MEG and other drilling fluids, the former has evident advantages in cave preventing, lubricity, solid carrying and formation damage controlling; also it can minimize the environmental effects. The above proves that MEG drilling fluid system can well meet the need for horizontal well drilling.
A Study on Shape Memory Performance of Cu-Al-Ni-Be Alloy Single Crystal
Authors: Xu Hua Ping , Song Gao Feng , Mao Xie Min
Published: July 2011

In this paper, single crystal of CuAlNiBe quaternary shape memory alloy was prepared in a high temperature gradient directional solidification furnace with a selective growing crystallizer. And its shape memory performance characters were systematically compared with other series copper base shape memory alloys. The results show that the single crystal of CuAlNiBe quaternary shape memory alloy has better shape memory properties.
Effect of Substrate Temperature on Properties of CuInSe2 Thin Films Deposited by Magnetron Sputtering
Authors: Yan Zhi , Ji Xin , Li Ming , Mi Yi Ming
Published: July 2011

CuInSe2 thin films were successfully deposited by magnetron RF-sputtering at different substrates temperature (100°C, 200°C, 300°C, 400°C, and 500°C). Effect of substrate temperature on these films crystallization, morphologies, and electrical properties were investigated. Results showed that increase of substrate temperature is in favor to be constituted in a chalcopyrite phase with a preferential orientation of (112), (211) and (312). The morphology images implied the film deposited at 200 oC had smoother surface than others. Furthermore, it was indicated that substrates temperature of 200°C had the best electrical and optical properties among these samples.
Fundamental Research on the Mechanism of High-Speed Welding Undercut
Authors: Huang Peng Fei , Tang Chao , Lu Zhen Yang
Published: July 2011

Undercut is one of the most important problems which restrict welding speed. The research indicated that surface flow direction of welding pool near the periphery is the most important reason of undercut occurred. When the existence of surface active element (e.g. the content of S is about 0.02-0.04% in steel) change the sign of surface tension temperature coefficient to positive, undercut always occurs in TIG moveless welding, and not occurs when the content of S in iron is very low( e.g. S% is less 0.01%). Temperature gradient is the most important factor which influences the depth of undercut. The depth of undercut is bigger with the increase of temperature gradient when the other parameters are the same. When filling metal into welding pool, it restrained the molten metal movement from periphery to the pool center. So it can reduce the tendency of undercut, and eliminate undercut as increasing of filling metal ultimately.
In Vitro Bioactivity Test of FA Added with TiO2 of Different Phases Coated on Ti-6Al-4V Substrates by Nd-YAG Laser Cladding Process
Authors: Chien Chi Sheng , Ko Yu Sheng , Kuo Tsung Yuan , Liao Tze Yuan , Hong Ting Fu , Lee Tzer Min
Published: July 2011

Hydroxyapatite (HA) is a frequently used bioactive coating material. However, when HA coating is soaked in the simulated body fluid (SBF), it is usually detached from substrate material due to its high dissolution rate in the solution. Recently, it is found that Fluorapatite (FA) has a better anti-dissolution ability than HA. In this study, Fluorapatite was mixed with TiO2 powder (either Anatase phase (A) or Rutile phase (R)) as a coating material precursor, and then be deposited on Ti-6Al-4V substrate to form the coating layer by using Nd-YAG laser cladding process. After soaking in SBF for various days, it is observed that dense ball-like apatite grew faster on the surface of the FA+R coating layer than that on the surface of the FA+A specimens. The corresponding Ca/P ratios of FA+R specimens also dropped faster than FA+A ones.
Research for Repairing the Main Reducer Gears of Helicopter Based on Shot-Peening and Electro-Brush Plating Composite Technics
Authors: Ding Li Li , Hu Jin , Guo Bi Xin
Published: July 2011

The cause of cracks after brush-plating on the main speed reducer of helicopter was analyzed and the ameliorative measures by shot-peening were brought forward consolidation. The measure, the components of plating liquid and the master parameters of working procedures were itemized, which can apply to renovation of accessory’s abrasion and scars in the situation of big alternant load.
The Influence of Sputtering Argon Pressure on LaB6 Films Characetristics
Authors: Xu Jing , Min Guang Hui , Yu Hua Shun , Li Jing
Published: July 2011

Lanthanum hexaboride films were deposited on SiO2 substrates in a vacuum chamber by D.C. magnetron sputtering from Lanthanum hexaboride pellet target. The films deposited with the same parameters besides the argon pressure. XRD, AFM and style profiler were used to characterize the properties of the deposited films. Surface of the films was compactive and smooth. Density of the film increased with the argon pressure. Roughness of the films decreased firstly and increased after with increasing of the argon pressure. Structure of the films was studied by the XRD. Results of the XRD showed that the dominant crystal face was (100) face. The crystallinity decreased with the increased argon pressure. Deposition rate of the film increased first and decreased last, and the value was lager than other at the argon pressure of 1.5Pa.
Numerical Studies on the Dynamic Performance of Polymer Foams
Authors: Zhang Qing Ping , Fan Zhi Geng
Published: July 2011

Two-dimensional (2D) regular and random cell models composed of circular cells are developed to simulate the microstructure of polymer foams. Two-parameter Mooney-Rivlin strain energy potential model is employed to characterize the hyperelasticity of the solid of which the foams are made. Finite element method is used to simulate the large deformation of the foams. Numerical results show that the strain rate sensitivity of the polymer foam is weak as rate independent constitutive model is introduced to describe the mechanical performance of cell material. ‘X’-, ‘I’-, and ‘V’-shaped bands are observed in regular foam models at a low, high and moderate impact velocities, respectively; whereas ‘I”-shaped modes appear in random cell models at a high impact velocity only.
Study on Behavior of Ni-Based and Fe-Based Hardfacing Alloys in Plant Valves with Laser Cladding
Authors: Xu Ai Qin , Fu Ge Yan , Wang Chen , Zhang Hui , Liu Shuang , Wei Hong Pu
Published: July 2011

Two new kinds of Ni-based and Fe-based alloy power have been developed. Both kinds of power have been successfully coated by laser cladding on the surface of stainless steel as strengthening layers. The morphology and microstructure of these coatings have been analyzed by SEM and XRD, the mircohardness, wear and corrosion resistance of Ni-based and Fe-based laser cladding coatings have been measured respectively. The analysis reveals that both coatings with smooth and successive surfaces and homogeneous morphology have been obtained under the proper laser processing parameters; besides, Ni-based and Fe-based coatings have fine, well-proportioned and dense microstructure, and better joints with the substrates, respectively. So the results indicate that Ni-based and Fe-based alloys can supersede the cobalt-based alloys in the certain conditions.
Electrodeposition of Blue Gold Thin Film onto Indium Tin Oxide Coated Glass
Authors: Du Jian , Di Jun Wei
Published: July 2011

A simple one-step method was developed to electrodeposit gold thin film from HAuCl4 solution with cyclic voltammetric mode on indium tin oxide (ITO) coated glass. The color of as-prepared gold film can vary from red to blue due to different particle-particle interaction. The Au thin film comprised of isolated gold nanoparticles (GNPs) were red color, while blue gold thin films were obtained by electrodeposition in high HAuCl4 concentration and the increasing deposition cycles.
Study on the Effects of Process Parameters on Weld Joint using Coaxial Inside-Beam Wire Feeding
Authors: Wang Chen , Shi Shi Hong , Xu Ai Qin , Han Xue Lei , Li Hong Yuan , Sun Hou Shun
Published: July 2011

The effects of process parameters such as laser power, scanning velocity and wire feeding speed on weld joint quality has been discussed through some laser welding experiments using coaxial inside-beam wire feeding process method. The results reveal that: Along with the increase of the laser power, weld width and depth are increasing gradually; Coating surface will appear burning loss and deboss when laser power is too large. The increase of scanning velocity decreases the depth and width of molten bath, and abates laser hole-effect, so the metal plate can not be welded penetration. Larger wire feeding speed can avoid welding seam produce burning loss, but it also can strengthen welding wire reflect the laser, and decline the welding.
The Diffusion and Interfacial Reaction of Cu/Si(100) Systems
Authors: Gao Xing Xin , Jia Yan Hui , Li Gong Ping , Ma Jun Ping , Wang Yun Bo
Published: July 2011

The Cu thin films have been deposited on Si(100) substrates by magnetron sputtering at room temperature. The samples were heat treated by conventional thermal annealing in different temperatures: 230°C, 350°C, 450°C and 500°C. The interface reaction and atomic diffusion of the Cu films and Si substrates between as-deposited and as-annealed at different temperatures are investigated by means of Rutherford backscattering spectrometry(RBS) and X-ray diffraction(XRD). Some significant results are obtained on the following aspects: (1) According to RBS, as-deposited Cu/Si(100) samples are not found interdiffusion, and the onset temperature of interdiffusion is 230°C. With the increase of temperature, the interdiffusion becomes more apparent. (2) After annealing at 230°C, the XRD results of the samples showed formation of Cu3Si(300). As the annealing temperature increases, the other copper-silicide phases are formed. The main copper-silicide phase is Cu3Si(300) after annealing at 500°C. It means that Cu3Si is a reliable copper-silicide in a wide range for the Cu/Si(100) interface.
Influence of Substrate Temperature on the Structural, Electrical and Optical Properties of Al-Doped ZnO Films by RF Magnetron Sputtering
Authors: Sun Yi Hua , Li Chen Hui , Xiong Wei Hao , Huang Cai Hua
Published: July 2011

Transparent conducting aluminum-doped zinc oxide (AZO) films have been prepared on soda-lime glass substrates by radio frequency magnetron sputtering using a high density ceramic target at different substrate temperatures. The structural, morphology, electrical, and optical properties of the AZO thin films were investigated by X-ray diffraction, scanning electron microscope, Hall measurement, and optical transmission spectroscopy, and which were strongly influenced by substrate temperatures. Films with better texture, higher transmission, lower resistivity and larger carrier concentration were obtained for the samples fabricated at higher substrate temperature. The AZO film with the lowest resistivity of 4.63×10−4 Ω.cm and an average optical transmission of 92% in the visible range was deposited on the substrate heated at 450 °C. The optical bandgap depends on the deposition condition, and was in the range of 3.35~3.59 eV.
The Application of the Sequential Valve Gate Control in Injection Molding
Authors: Shen Hong Lei
Published: July 2011

Compared to the common hot runner molding,the valve gate control sequential molding has the advantages in the control of (injection and packing)pressure and weld lines,etc.the method is very suitable for large sized thin wall parts. In this paper,the door-panel of a washing machine was taken for an example, the simulation of the both process above mentioned were carried out by computer-aided engineering. According to the results of the study,the main achievements are as follows:Although the equipment cost of the valve gate control sequential molding was increased,the part quality (especially the quantity of weld 1ines and air traps) is improved greatly,at the same time,the clamping force of the injection machine are dropped.
The Electrochemical Characteristics of Corrosion Scale on P110 Carbon Steel
Authors: Miao Jian , Zhu Shi Dong , Wang Qiang , Feng Yao Rong , Zhao Xin Wei
Published: July 2011

The properties of corrosion scale on P110 carbon steel in the saltwater solution containing CO2 have been examined by electrochemical impedance spectroscope (EIS). The change of electrode reaction process on the corrosion scale has been discussed in the present work. It is found that the corrosion rate decreases with the increasing of the experimental time, and the reducing tendency of corrosion rate becomes low as the experimental time was 72 hours, EIS results indicate that the polarization resistance increases gradually and the electrode reaction is controlled by both diffusion and activation in comparison with activation only at the beginning.
Thermal Stability of Cu/Si (111) Films Prepared by Ionized Cluster Beam Technique
Authors: Cao Bo , Jia Yan Hui , Li Gong Ping , Cho Seong Jin , Kim Hee
Published: July 2011

The Cu films were deposited on P type Si (111) substrates by ionized cluster beam (ICB) technique. The interface reaction and atomic diffusion of Cu/Si (111) system were studied at different annealing temperatures by X-ray diffraction (XRD) and Rutherford backscattering spectrometry (RBS). Some significant results were obtained: For the Cu/Si (111) samples prepared by ionized cluster beams at Va=3 kV, the interdiffusion of Cu and Si atoms occurred in the as deposited samples. The RBS spectra features were changed with a very small extent with increasing the annealing temperature. There are no copper-silicide phases observed by XRD before and after being annealed at different temperatures. The reason may be that there is a thermally stable interface between Cu films and Si substrates formed.
Characteristics of the Keyhole and Energy Absorption during YAG Laser Welding of Al-Li Alloy
Authors: Duan Ai Qin , Gong Shui Li
Published: July 2011

In this paper, the keyhole of YAG laser welding 5A90 Al-Li alloy was observed and measured through the high speed camera. The characteristics of the keyhole and the effects of welding parameters were studied. The characteristics of the absorption of laser energy and the susceptivity for heat input in welding 5A90 were given. The results show that in this welding condition, the keyhole of laser welding 5A90 is nearly a taper and the highest temperature area is in the bottom. There are clear effects of heat input on the characteristics, especially the surface radius of keyhole and plasma/vapor in keyhole. Another phenomena is observed that sometime plasma/vapor could disappear in 0.3ms welding time, and this feature will be more remarkable as decrease of heat input. It shows that the absorption of energy is unsteady. It is known that when this instability reaches a certain value, an unsteady weld will be formed.
CdS Sensitized ZnO Core-Shell Nanorod Array Films Preparing by Chemical Bath Deposition
Authors: Wang Yun Feng , Yao Jiang Hong , Jia Guo Zhi
Published: July 2011

CdS, ZnO and ZnO/CdS core-shell nanorod films were prepared by chemical bath deposition. The samples were characterised by UV-Vis spectroscopy and scanning electron microscopy. The results show that the norder ZnO nanorods have been etched in the alkaline solution, at the same time, CdS was deposited on the ZnO surface. Effect of the concentration of OH- on the optical prosperties of CdS films were investigated by the optical transmission spectra. The results show that the transmission decrease with the increasing of the concentration of OH- due to increasing of the film thicknees, which can be ascribed to the increasing of S2+ concentration. The mechanisms of the forming of ZnO/CdS core-shell nanorods film in the alkaline solution were further analyzed.
Studies on Lauroyl Chloride Modified Tourmaline Powder
Authors: Hu Ying Mo , Bian Jing , Yang Xue , Wang Qing Ling
Published: July 2011

The surface modification of the tourmaline powder with lauroyl chloride was studied in this paper, and discussed the influence of reaction conditions on modified effect with parameters of activation index and contact angle. Results showed that the activation index of modified tourmaline powder reached to 96% while tourmaline powder reacted with equiponderant lauroyl chloride at 80 °C in DMF for 5 hours, and the modified tourmaline had excellent hydrophobic property. Structural analysis revealed that hydrophobic alkyl was attached to the surface of tourmaline powder, but it had no effect on the crystal configuration of tourmaline powder.
Determination of Thermal Parameters via a Homotopy Algorithm
Authors: Xue Qi Wen , Du Xiu Yun
Published: July 2011

In order to determine thermal parameters of mass concrete, this paper utilizes homotopy technique to solve an inverse transient heat conduction problem with multi-variables. A finite element model facilitating to sensitivity analysis for non-linear direct and inverse problems is derived, and a precise algorithm of time stepping is used in the transient analysis. Numerical validation has been given with an investigation of effects of noise data and initial guess on the results.
A New Hydrocarbon-Type Polymer Electrolyte Membrane for DMFC Application
Authors: Sakaguchi Yoshimitsu
Published: July 2011

A new hydrocarbon-type polymer electrolyte membrane has been developed as a candidate of commercially available product for DMFC application. The membrane shows lower methanol crossover and swelling in the methanol aqueous solution than perfluorosulfonic acid membrane does. As a result, MEA made from the membrane showed higher power density than that of perfluorosulfonic acid membrane at higher concentration of feed methanol solution and higher current density without tremendous flooding. Promising result of the practical durability with continuous fuel cell operation for 8000 hours was also confirmed with this membrane.
Study on Influence of Crimping Performance of PET/PTT Self-Crimp Yarn Treated with Moist Heat
Authors: Guo Jing , Zheng Nan , Chen Ying Tao
Published: July 2011

PET/PTT conjugate yarn has a three-dimension spiral and permanent crimp, which endow the yarn and loomage with excellent performances of crimp extension and crimp recovery. The residual deformation and internal stress of the self-crimp yarn can be eliminated after the moist heat treatment, in order to develop the favorable crimp extension and crimp recovery of the self-crimp yarn, and to give the loomage soft handle and good dimension stability. Crimp shrinkage, crimp module, etc, of the different types of PET/PTT yarn, were tested, and the axial morphology of the yarn was observed, to investigate the effect of linear density, moist heat temperature on PET/PTT yarn.
Study on the Compressive Properties of Spacer Fabric Composites Based on Finite Element Software ANSYS
Authors: Cao Hai Jian , Qian Kun , Wei Qu Fu , Li Hong Shun
Published: July 2011

On the basis of previous studies, the structural model of spacer fabric composites were built by using the finite element software ANSYS for analyzing the compressive properties in the paper. The compressive features of the composites were analyzed, and the influence of pile height, pile density and poisson ratio on the compressive properties was studied too. The results revealed that the maximum value of the stress appeared in the interface between the piles and the face-sheets when the spacer fabric composites were subject to compressive loads, in which the composites damaged easily. Another maximum value of the compressive stress occurred in the cross of the “8”-shaped piles, where the piles damaged easily too. And the minimum value appeared in the upper and lower face-sheets, which indicated that the damage didn’t occur easily in the face-sheets. The compressive properties of the spacer fabric composites increased with the increase of the pile density and poisson ratio, and decreased with that of the pile height. The study provides a reference for the structural optimum of the spacer fabric composites.
Study of the Cooling Wall Boundary Layer with Underfloor Supply Room
Authors: Li Xiao Hua , Lin Dao Guang
Published: July 2011

Based on the underground supply room properties and the boundary layer theory, this paper derived the temperature calculation formula of the laminar boundary layer and turbulent boundary layer, respectively; then discussed the mass flow calculation formula of the boundary layer; at the end experiment indicated the boundary layer definitely exits between the main region and the outside structure, whose temperature is between the air temperature of the main region and the air temperature of the wall. It validated that the theory analysis is correct.
Research on Finishing of Oxidized Cotton Fabric with Sericin
Authors: Xu Yun Hui , Zhang Xiao Li
Published: July 2011

In order to take advantage of specific properties of sericin to develop cotton fabrics with the healthcare function, the cotton fabric modified with sericin (SMCF) was prepared by the periodate oxidation and subsequent treatment with sericin solution. The aldehyde groups in molecular chains of the oxidized cotton fabric crosslinked with the amino groups of sericin to form the chemical bond of Schiff’s base. The effects of periodate concentration, reaction temperature, sericin concentration and treatment time on the finishing process were investigated. The optimum finishing technology for cotton fabric was obtained. XPS analysis of the modified cotton fabric showed a characteristic peak of nitrogen element at 400.0–404.0 eV, which suggested that the sericin was fixed on the surface of cotton fabric through the Schiff’s base. The anti-ultraviolet property of the resulting SMCF improved. The breaking strength and whiteness of the modified fabric slightly decreased, whereas the moisture regain and wrinkle recovery angle of sericin treated fabric remarkably increased.
The Feasibility Study of PET Fabric Dyed with Disperse Dye by Adding ZnO Powder
Authors: Yen Chien Kuo , Pan Yi Jun , Yeh Yi Yen , Chen Yen Yu , Yao Yi Jyun
Published: July 2011

During PET fabric dyed with disperse dye by adding ZnO powder and ceramic bead made from which was studied. To utilize the effect of transmission of FIR to produce heat, it might reduce consuming quantity of dyestuffs and minimize requiring heat of conventional dyeing in the considerable extent. To vary the adding amount of ZnO powder within ceramic bead, the after-treatment time of ceramic bead, dyeing temperature and the concentration of dyeing solution, then the outcomes of dyeing was investigated. The researching results showed, there were obvious effectiveness to some specific disperse dyes either added ZnO powder or ceramic bead in dyeing bath. Under the same dyeing temperature, the color-depth of dyed fabric is deeper with the dyeing liquor of adding ZnO powder and ceramic bead; otherwise, the effect of adding ZnO powder was superior to which of ceramic bead.
Processing Technique and Sound Absorption Property of Three-Dimensional Recycled Polypropylene Nonwoven Composites
Authors: Lin Jia Horng , Lin Chia Chang , Chen Jin Mao , Chuang Yu Chun , Hsu Ying Hsuan , Lou Ching Wen
Published: July 2011

Noise pollution has become a kind of serious environmental pollution problems. It not only makes people feel fatigue but also affects their concentration and work efficiency. People’s health and work efficiency could be promoted by improving and reducing the noise pollution problem. In this research, the recycled polyester (PET) fibers, polypropylene (PP) fiber and flame-retardant-hollow-crimp 7D PET fiber with a ratio of 2:1:7, 2:2:6, 2:3:5, 2:4:4, and 2:5:3 were fabricated and then needle-punched, creating the PET/PP/PET fabric. Next, a layer of recycled PP selvage and a layer of fabric were laminated in turn on the base fabric before needle-punching with a certain punching-depth, which was repeated until the 10-layer PET/PP/PET nonwoven composite was completed. Finally, the resulting PET/PP/PET nonwoven composite was measured with its physical properties and sound absorption ability.
Manufacturing Technology of 316L Stainless Steel/Poly(Lactic acid) Composite Braids and the Induction of Hydroxyapatite Formation on the Braid
Authors: Lou Ching Wen , Hu Jin Jia , Chen Yueh Sheng , Wen Shih Peng , Lin Keng Chuan , Lin Jia Horng
Published: July 2011

Many biodegradable synthetic polymers have been used as tissue-engineered scaffolds. The major problem of these polymers to be used in bone tissue engineering is their poor mechanical strength. It is well known that we can deposit hydroxyapatite, a material with strong osteoconductivity, onto a surface using electrochemical methods. These polymers, again, lack electrical conductivity so that deposition of hydroxyapatite onto these polymers is very challenging, if not impossible. Here we presented a novel scaffold for bone tissue engineering based on textile technology. First, we fabricated 316L stainless steel/poly(lactic acid) composite ply yarn by wrapping stainless steel wires and poly(lactic acid) yarn together. A 16-spindle braiding machine was then used to braid the composite yarn layer by layer into a 3-dimensional scaffold for bone tissue engineering. Furthermore, due to the electrical conductivity of 316L stainless steel wires in the composite yarn, we employed an electrochemical method to induce hydroxyapatite deposition on the braid. SEM was used to evaluate the growth of hydroxyapatite formation on the braid.
Manufacturing Technique and Mechanical Properties of Environment-Protective Composite Nonwoven Fabrics
Authors: Lin Jia Horng , Chen An Pang , Lin Jan Yi , Lin Ting An , Lou Ching Wen
Published: July 2011

Ecological environment deteriorates drastically and rapidly, which can be ascribed to the fast advancement of international economy and technique. Hence, people become green consumers, using green products. The series of lyocell fiber, called as recycled fiber, has been pervasively used. This study used Tencel® fiber, Polylactic Acid (PLA) fiber and high absorbent fiber as well as nonwoven manufacturing, creating Tencel®/PLA/HAF composite nonwoven fabrics. Among the manufacturing parameters, an increase in Tencel® fiber ratio, needle-punching density and basis weight all contributed to heighten the mechanical properties of nonwoven fabrics. In particular, the Tencel®/PLA/HAF composite nonwoven fabric exhibited an optimum tensile strength of 68.8 N and bursting strength of 193.7 N when Tencel® fiber ratio was over 80 wt%, basis weight was 200 g/m2 and needle-punching density was 300 needle/cm2.
Anti-Bacterial and Crease-Resist Finishing of Cotton Fabrics with Chrysalis Chitosan
Authors: Huang Li Xin
Published: July 2011

Cotton fabrics is treated for bacterial repellency and crease resistance with different kinds of chitosans. Through the study and test of the main processing parameters of chrysalis chitosan, the optimized finishing parameters are obtained. Then the anti-bacterial and crease-resist mechanism of chitosan as well as the washing resistance of finished fabrics is measured and analyzed.
Study on Extracting of Sappanwood Natural Dye by Cellulase
Authors: Liu Song Qi , Han Xue , Yang Ke Ying , Cui Yong Zhu
Published: July 2011

The conditions for extracting sappanwood pigment by cellulase were investigated. The results showed that, compared with traditional water extract method, the absorbance of sappanwood extract raised 35%. Single factor analysis method was done to the enzymatic process, and the optimal extracting conditions were bath ratio 20: 1, mass ratio of sappanwood and cellulase 100:1, enzymolysis at 50°C for 80min, extract at 80°C for 60min. Silk fabric was dyed with the sappanwood extract, the fastness was above grade 3-4.
The Synthesis of Novel Organic Light-Emitting Material 2,7-Dibromo-2′,3′,6′,7′-Tetra(2-Methylbutyloxy)spirobifluorene
Authors: Sun Xiao Xia , Li Ying Chun , Liu Xi Mei , Zhuang Xiao Xiao , Lou Ya Zhou
Published: July 2011

A mide, simple and efficient synthetic procedure for the preparation of 2,7-dibromo-2′,3′,6′,7′-tetra(2-methylbutyloxy)spirobifluorene and key intermediates, tetra(2-methlbutyloxy)biphenyl ，2-bromo-4,5,3′,4′-tetra(2-methylbutyloxy)biphenyl, 2,7-Dibromo-2′,6,3′,7′--tetra(2-methylbutyloxy)biphenyl-9-Fluorenol, has been developed. The procedure described herein offers several advantages, including high product yields, easy purification, and large scale production. Ether protected 2,7-dibromo-9,9′-spirobifluorene has good solubility in organic aolvents to permit an appropriate coating process, ability to achieve various colors so as to make full color display elements possible.
Numerical Study of Effective Elastic Properties of HGB Periodically-Reinforced Composite
Authors: Wang Bing , Li Hui Jian , Liang Xi , Yu Wei
Published: July 2011

Representative volume element methord is used to simplify HGB (hollow glass bead) periodically-reinforced composite model into representative volume element. Orthotropic properties and change rules of effective elastic constants (modulus and Poisson's ratio) and HGB wall-thickness of representative volume element are studied by using the finite element methord. The study finds that there is no obvious difference of each direction of the three kinds of composites with different filling types; the effect of filling type is not very obvious also.
The Establishment of the System to Measure Displacement Based on Two Stage Rotary Coder
Authors: Wang Tie Cheng , Du Zhan Ping , Liu Lei , Zhang Yan Rui
Published: July 2011

This paper discusses the realization of the cascade of two stage rotary coder. It is aimed to establish a coordinate system to apply in the continuous and precision measurement of the displacement and rotary angle in a large scale. This coordinate system can be used for any industrial control process in which there are particular demands for the measurement of the displacement and rotary angle. It has characteristics of high resolution, large scale and non-volatile.
Research on Digital Modeling about Free-Form Surface with Holes Based on Coordinate Measuring Machine
Authors: Huang Ming Yu , Wu Xiu Juan , Jia Zhong Shi , Ni Hong Jun , Lv Jing Jing , Wan Xiao Feng , Wen Peng Peng
Published: July 2011

Data acquisition and model reconstruction of free-form surfaces with holes were been studied, based on coordinate measuring machines. First, the structural process of the parts was analyzed, the method of combinate contact measurement with non-contact measurement were used to get point cloud; Then the point cloud were been preprocessed, feature curve extracted and solid modeled; Finally, the restructure model was been quality assessed and accuracy assessed. Using the measurement of combinated contact and non-contact can also meet both the precision requirement of key part and the fast reconstruction requirement of non-critical part, which has great significance on that part to fast and accurate reconstruction.
Study on Grout Permeation Model of an Equipment for Grouting in Roller Compacted Concrete
Authors: Peng Wei Ping , Zhao Xiong , Liu Zhao
Published: July 2011

Based on cylindrical diffusion theory and characteristics of enriched vibrated Roller Compacted Concrete (RCC), a model of grout permeation was established. According to this model and generalized Darcy’s law, a formula was deduced, which shows the relationship among diffusion radius of grout, grouting pressure, radius of grouting pipe, construction time, viscosity of grout, permeability coefficient of RCC, porosity of RCC and rheological index of grout, computing steps by this formula were presented, and results of computing grout diffusion radius for an equipment of grouting in Roller Compacted Concrete was given, which was developed for construction of RCC dam at Tingzikou hydraulic power station.
Design of Rope Tension Measuring System of Fishing Gears
Authors: Jiang Shao Jie , Zhou Hua , Liu Xuan
Published: July 2011

For the actual needs of fishery production, a rope tension sensor and measuring system with the traceability of changes of fishing cargo weight is designed. Thus the amount of fishing cargo can be evaluated accurately and the blinded operation is avoided.
A New Portable Toilet Design and Optimization
Authors: Yang Chun Jie
Published: July 2011

This paper introduced a new toilet design that can be moved conveniently and adjust the height of the pedestal pan to suit the needs for different customers. The main driving device in the support consists of gear and rack mechanism. The product satisfied the needs through testing of a prototype in the laboratory. The principle of the design and structure of the toilet are illustrated and provided ProE simulation. The possibility of practical application and cost analysis and application prospects are developed in this paper.
A Linear Mapping Hysteresis Model Based on Theory of Microscopic Polarization
Authors: Ru Chang Hai , Li Wei Da , Pan Ming Qiang
Published: July 2011

In this paper, the underlying anhysteretic polarization is quantified through constitutive equations derived using Boltzmann statictics and Langevin model. The remanent polarization and the irreversible polarization are analyzed. A thermodynamic description of ferroelectric phenomena is proposed to address the coupling relations between electrical field and mechanical field by considering the series expansion of the elastic Gibbs energy function. A simple linear mapping hysteresis model based on theory of microscopic polarization is derived. In order to evaluate the effectiveness of the proposed model, a micro-positioning stage driven by the PZT in open-loop operation was used to test. The experimental results show that the proposed hysteresis model could precisely describe hysteresis phenomena. The fitting error is within 0.5%.
Adsorption Behavior and Corrosion Inhibition of EPP for Q235 Steel in H2SO4 Solution
Authors: Zou Li Ke , Lai Chuan , Xie Bin , Yang Xue , Xiang Zhen , Zeng Ni , Huang Chun , Wang Yang Mei
Published: July 2011

The inhibition effect of N,N-diethylammonium O,O'-di(2-phenylethyl)dithiophosphate (EPP, [NH2(Et)2][S2P(OCH2CH2Ph)2]2) against the corrosion of Q235 steel in H2SO4 solution was studied by weight loss measurement, potentiodynamic polarization and SEM(scanning electron microscope) techniques. The results show that EPP acts as an excellent corrosion inhibitor in 5% H2SO4 by suppressing simultaneously the cathodic and anodic processes via chemical adsorption on Q235 steel surface, which complies with the Langmuir adsorption isotherm. Polarization curves indicate EPP is a mixed-type inhibitor. The effects of temperature, acid concentration and immersion time were also studied.
Investigation on the Interaction between Human-Like Collagen and Iron
Authors: Chen Fei , Fan Dai Di
Published: July 2011

Human-like collagen (HLC)-Fe complex has been synthesised in aqueous solution. Ultraviolet-visible absorption (UV-vis) spectroscopy and Fourier transform infrared (FTIR) spectroscopy were employed to investigate the interaction between human-like collagen (HLC) and ferrous ion. The results obtained from the experiments indicated that there exactly existed coordination interaction between HLC and Fe2+, in addition, the complex was formed via both groups of C=O and N-H of amide in HLC. The binding rate, determined by inductively coupled plasma mass spectroscopy, was about 33.35%.
Analyses and Determination of Current Density and Energy Density in Electric Melting Glass Furnace
Authors: Ning Wei , Luo Li Da , Xu Xing Yang , Wang Qing Wei , Chen Jian
Published: July 2011

Current density and energy density is one of the most important parameters for designing the electric melting glass furnace. This paper analyzed the relation between current density and energy density based upon the generated representation, mathematical simulation and empirical equation, defined the bearing scope of current density for several kinds of electrodes, discussed the tendency of the change of current density and volume melting rate on different kinds of glasses, provided the theoretical basis to design electric melting glass furnace and established proper thermotechnical regime, so as to ensure the optimum operating condition in electric melting glass furnace.
Comparison on Extraction Yield and Quality of Coix Seed Oil
Authors: Xiao Xiao Nian , Guo Ye , Yi Xing , Xiong Hua
Published: July 2011

The effects of four types of extraction methods on the yield and the quality of coix seed oil were investigated. The extraction yields (EYs) by these methods were: 3.43% (Microwave-assisted extraction, MAE); 2.13% (Ultrasound-assisted extraction, UAE); 1.72% (Aqueous enzymatic extraction, AEE) and 1.29% (Refluxing extraction, RE) respectively. Both the peroxide number and acid value by RE are the highest, while by other methods are almost the same.
Multi-Function Electrical Energy Meter Detection Method Analysis
Authors: Zhu Jiang , Qian Xiao Yao , Wang Yu
Published: July 2011

Electrical energy meter is one of the most important metrology equipments．It is also a kind of metrology apparatus for commercial exchange．Its credibility is important to consumers and corporations of electrical power especially after the legislation of “one meter for each family”．It is related to one’s immediate and vital interests of average masses directly．Therefore，the verification of electrical energy meters becomes more and more important. The context of Electrical energy meter working mechanism, functions, and its technical conditions and detection method introduced.
Preparation and Properties of Biocomposite Film with Gelatin and Poly(Vinyl Alcohol)
Authors: Gao Xi Ping , Tang Ke Yong , Zhang Yu Qing
Published: July 2011

The mechanical properties, swelling, solubility, and optical properties of composite films with poly(vinyl alcohol) (PVA) and gelatin were studied. With increasing the PVA content in the composite films, the tensile strength (TS) and elongation at break (EB) of the films increase. The swelling and solubility are different with different gelatin/PVA ratios, with the lowest at 1:5.
Washing Deinking of Mixed Office Wastepaper As a New Resource for Electrical Purposed Paper
Authors: Chandranupap Pravitra , Chandranupap Panitnad , Kongsat Pantharee
Published: July 2011

In present time, recycled paper from xerographic and laser-printed wastepaper plays an important role as alternatives to paper from virgin pulp because of there good pulp quality and high amount of wastepaper each year. This type of paper is classified as Mixed Office Wastepaper (MOW). The xerographic and laser-printed inks are usually called “toner” that mainly consists of styrene-acrylate copolymer. This work investigated paper recycling by washing deinking processes. Experimental parameters were pulp consistencies, amounts and types of surfactant. The resultant pulp of 1.5%consistency and 0.9 wt% of nonionic surfactant, Triton X-100, is the optimum washing deinking process. The resultant pulps have optical and physical properties closed to non-printed paper. Surfactant concentrations were kept below CMC to provide low ink specks, high brigthness and strength on handsheets. The recycled pulp will be use as a raw material for electrical purpose paper.
Discussion on the Detection and Prevention of SQL Injection
Authors: Zhang Xing Zhong , Zhang Xiao Jie
Published: July 2011

With the development and popularization of the Internet ,a number of web sites based on Web Server Language and back-end database schema have occurred,and their security becomes more severe.Aiming at the security problems of websites, this paper introduces the attack method--SQL injection,which has the maximum harmfulness to websites,also briefly presents the principle and process of SQL injection, in addition, elaborates and analyzes the detection methods and defensive measures of SQL Injection vulnerability in detail.
Research on the Effects of the Basic Properties of Offset Paper and Art Paper on Printing Dot Reproduction
Authors: Yang Yong Gang , Liu Fu Ping
Published: July 2011

The properties of offset paper and art paper including smoothness, gloss and absorbability, dot percentage and the tri-stimulus values of every dot areas and solid areas of the printed paper samples were measured. Dot gain curve and chromatic diagram were drawn after dot gain values and chromatic coordinates (x, y) were calculated. The results showed that smaller dot gain value and greater color gamut occur on the art paper due to its higher smoothness, gloss and lower absorbability when the printing conditions were the same, so the printing dot reproduction quality on the surface of art paper is better. However because offset paper has lower smoothness and gloss, higher absorbability compared with art paper, therefore the dot reproduction quality on offset paper is not as good as art paper.