bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Nature-Oriented Furniture Design
Authors: Zhang Zhong Feng , Huang Kai , Su Xiao
Published: December 2012

By summing up the adverse consequences caused in the practice of the concept of “human-orientation”, it proposed the idea of “nature-orientation” is superior to “human-orientation”, and analyzed the necessity to apply the idea of “nature-orientation” in designs. Then it mainly studied on nature-oriented furniture design which included its connotation and basic design principles. And then it discussed in detail how to combine the basic elements of furniture design including materials, texture and color, shape, structure, and process to achieve nature-oriented furniture design, which can help to establish development mode of low carbon and environmental protection for furniture industry, as well as to provide a reference for the idea of “nature-orientation” applied in other fields.
Redesign of Liangzhu Pottery Based on Form Style Recognition
Authors: Zhu Shang Shang , Li Shao Hong
Published: December 2012

Take the Liangzhu pottery as examples, an approach of form style recognition was proposed to further exploring the redesign of cultural artifacts from industrial design. Firstly, six major images of Liangzhu pottery was investigated by using KJ method and Factor Analysis; Then the relationship between the essential form factors and the major images were analyzed through Quantification Type I; Finally, the perceptual image knowledge base of Liangzhu cultural artifacts and a computer-aided form redesign system was built. Based on this system, the particular images conveyed by the cultural artifacts and the corresponding form features can be obtained, the traditional culture can be expanded. Thus the theory of form style recognition in the redesign of cultural artifacts is tested.
A Brazilian Ergonomic Human-Robot Interface Case
Authors: Matias Nelson Tavares , Rosado Victor Orlando Gamarra , de Barros José Glenio Medeiros , de Araújo Antonio Henriques , Ribeiro Rosinei Batista
Published: December 2012

Brazilian and foreign companies operating in Brazil in the last 30 years have been using automated productive resources, especially robots. These 3 decades doesn´t seem to have been enough to develop in the actors involved with robots an adequate professional awareness. If we consider the predictive security and ergonomic aspects involved, we notice that there are critical failures on handling these situations. So in this study we tried to observe the presence of the human being in some workstations that operate with robots in the Brazilian Southeastern region.
Wheelchair Comfort Evaluation Method Based on Neural Network
Authors: Yuan Yan Li , Guan Tian Min , Qin Mei Chao
Published: December 2012

Based on the subjective questionnaire data, anthropometric data, and the pressure distribution data, the relationship between pressure distribution and wheelchair static comfort is studied. Subjective evaluation of comfort is collected through subjective questionnaires; experimenter pressure distribution data is extracted through pressure distribution experiment. Using anthropometric data and pressure distribution data as input, and integrated comfort as output, wheelchair comfort network prediction model is established based on artificial neural network, wheelchair ride comfort can be predicted through pressure distribution. This method converts the subjective evaluation to objective measurement.
Evaluation of Liangzhu Cultural Artifacts Based on Perceptual Image
Authors: Zhu Shang Shang , Dong Ye Nan
Published: December 2012

To compensate for the differences among heritage experts knowledge, design knowledge and user knowledge in cultural product design, the regional cultural image conveyed by Liangzhu artifacts was analyzed from the aspect of industrial design. The cultural images of Liangzhu jadeware were obtained through the methods of focus groups and questionnaires. The images were classified and reducted into six recognition dimensions by Kansei engineering and Factor Analysis. Based on the recognition dimensions, the Liangzhu cultural image knowledge base and evaluation system was constructed. The knowledge of Liangzhu artifacts could be reviewed. And the images of them could be evaluated. The evaluation trends of different user groups on the Liangzhu cultural images could be obtained by designers accordingly. Thus the process of computer-aided cultural product redesign could be improved.
The Ideal of the Public Management Majors Setting up the National Affairs Management Course in Colleges and Universities
Authors: Zheng Xu
Published: December 2012

The public management majors setting up the national affairs management course in colleges and universities is realistic, forward-looking measures. The article bases on the analysis of the national affairs management in China and discusses the necessity of the public management majors setting up the national affairs management course in colleges and universities from the aspects of society, discipline and students. And corresponding attention problems were discussed
Envelope Method Applied on the AZO Thin Films
Authors: Xu Ying , Ma Peng Hua , Liu Mo Ning
Published: December 2012

The AZO thin films had been prepared on glass substrates by APCVD process .The transmittance spectra of AZO thin films was measured with S-600 UV-Vis spectrophotometer . The visible light transmittance values of AZO thin films are about 85% and the thickness of the thin films well-distributed by the transmittance spectra of AZO films. Using the envelope method, the film thickness d is calculated about 964.43nm and the discrepancy is only 0.56% compared with the result of instrument measurements. The curve about the refractive index n with the incident wavelength is consistent with the reported literature results. The envelope method is suitable for the optical constants processing of some similar AZO films where exist weak absorption ranges (T≥0.4).
Tobacco Industry Collaborating Supply Chain Research and Strategy
Authors: Zhang Zhi Hua , Ji Shou Wen , Yu Zhao Zhao , Tian Ying , Gao Yang Hua
Published: December 2012

The paper analyzes the network structure and characteristics of China’s tobacco industry supply chain and proposes the framework of Collaborating Supply Chain based on information sharing mechanism. At last, the paper supposes some implementation strategies.
Study of Influences on Interest Rate Changes between 2007 and 2011 to Real Estate Development Investment in Henan Province
Authors: Gao Ting Ting , Sun Gang Zhu
Published: December 2012

The people's Bank of China adjusts interest rates frequently in order to restrain investment overheat phenomenon of real estate. This paper studies the relationship between the loan datum interest rate and real estate development investment,basing on changes of interest rate in china and investment in real estate development of Henan Province from 2007 to 2011.
Research on the External Characteristics & Binding Mechanism of the Environment Project
Authors: Tao Ping , Hu Jie Qiong
Published: December 2012

This paper analyses the problems of the positive externality and effects that externality has on resource configure efficiency. It deeply analyses externality problems from economics view that related to the sewage and garbage disposing projects. It suggests setting up restricting mechanism from both of the incentive mechanism and policy mechanism. It empresses the validity of policy restricting mechanism and environment protection governance policy and the governance policy of non-environment-protect-behavior, so as to establish an effective investment and financing economic policy and to absorb nongovernmental capital mostly.
An Optimization Discusses of College Teaching Material Inventory Based on Supply Chain Management
Authors: Peng Guo Jian , Chen Guo Min , Chen Gang , Liu Ze Hua
Published: December 2012

This article investigate the structural form and process of college textbook supply chain in detail, and find out the matters of college textbook inventory under the Supply Chain Management on the base of Supply Chain Management, inventory control, inventory optimization and Economic batch theory. According to that problem, this article put forward a college teaching material inventory optimization model based on Fixed Order Quantity and fixed kickback rate, which is compared with the supply of university teaching characteristics and economic batch basic model, and to optimize inventory strategy, put forward a tentative plan of build an university teaching information sharing platform.
Research on the Evaluation Index System of Technological Innovation Capability in Cement Industry
Authors: Xu Da Qi , Hua Tian Hai
Published: December 2012

Combinating the process theory and system theory organically, this paper views enterprise’s technological innovation as a continuously improved system process. It builds a system model for the evaluation of technological innovation capability based on the view of process. Considering the features of cement industry, the technological innovation capabilities in cement industry are divided into innovation management capability, innovation input capability, research & development capability, manufacturing capability, marketing promotion capability and innovation output capability. And we propose a comprehensive and complete evaluation index system of cement industry’s technological innovation capability and provide a ruler for the evaluation of cement industry’s technological innovation capability
A Methodology for Evaluation of Distribution System Anti-Disaster Ability in Inclement Weather
Authors: Zhang Dong Fei , Ma Rui , Yang Chen Jun , Wu Gang , Lu Hai Wei
Published: December 2012

The accurate evaluation of distribution system reliability plays an important role in distribution system planning. The existing method doesn’t consider the influence of different inclement weather. This paper proposed a new method for evaluation of distribution system anti-disaster ability in inclement weather. Firstly, the influence of the system components in inclement weather was analyzed according to the physical situation; then the relationship between the breakdown probability of the components and the meteorological parameters was studied on the basis of the components quality. Secondly, considering the characteristics of distribution system, the probability of continuous failure was discussed by the minimal path method. Finally the evaluation indices were introduced to represent the distribution system anti-disaster ability. The simulation results show the laws between the distribution system’s anti-disaster ability and the changing meteorological parameters.
Synthesis of PAN Fiber Supported Fe(bpy)32+ for RhB Degradation under Visible Light Irradiation
Authors: Han Zhen Bang , Guo Jia , Li Wei
Published: December 2012

The amidoximated Polyacrylonitrile (PAN) fiber was applied for the support to immobilize Fe(bpy)32+ through ionic bonds, and the obtained fibrous complex was used as heterogeneous Fenton catalyst for the degradation of Rhodamine B under visible light irradiation. The results indicated that increasing Fe(bpy)32+ concentration in solution led to higher Fe(bpy)32+ content on the prepared catalysts, and the amidoxime groups helped greatly for the immobilization of Fe(bpy)32+ via coordination effect. This catalyst exhibits an obvious absorption in the visible region and could effectively degrade Rhodamine B in the presence of H2O2 under visible light irradiation. In addition, no deactivation of the catalyst was observed even after five consecutive runs of dye degradation.
Effects of Enzymes Treatment on Structure and Properties of Acellular Dermal Matrix
Authors: Shen Xin Chun , Wang Ling Ping , Wan Mao Sheng , Cao Cheng Bo , Liu Hong
Published: December 2012

A porcine ADM was prepared by the means of combined treatments with alkali, enzymes, sodium lauryl sulfate (SDS) and NaCl solution. Concentration and process time of enzymes were varied respectively, and their effects on properties of ADM were evaluated, such as porosity, mechanical properties, enzymatic degradation. The composition of ADM was detected with an amino acid analyzer, and its microstructure was observed under SEM. To estimate its cytocompatibility, cells proliferation tests were performed by MTT assay, and cells distribution was viewed under CLSM. With increase of enzymes concentration and process time, the porosity of ADM was enhanced, but its ultimate tensile strength was weakened. And enzymatic process time affected the degradation rate of ADM in collagenase solution greatly. The obtained ADM framework had interconnected pores at about 100 μm in diameter. The MTT assay and CLSM image indicated that cells cultured on ADM proliferated well and distributed evenly. The prepared ADM has good microstructure, high mechanical properties, controlled enzymatic stability and good cell compatibility, and it has great potential use in the tissue engineering for further study.
Studies on the Property Changes of Environmental Degradation Mulching Film and Polyethylene Mulching Film in Water Environment
Authors: Zhao Bin Bin , Luo Xue Gang , Lin Xiao Yan , Zhang Hong Ping
Published: December 2012

This paper studied the property changes of environmental degradation mulching film and polyethylene mulching film in water environment. The XRD (X-ray diffraction) cures showed that the diffraction angles of environmental degradation mulching film were not changed but intensities and area of diffraction peaks increased after immersion for 60 days; while the diffraction angles and area of diffraction peaks of polyethylene mulching film were same before and after immersion. Cracks and holes appeared in surface of environmental degradation mulching film, but it was still smooth and uniform for the polyethylene mulching film after immersion.
The Thermal Hysteresis Temperature of ‘HPLC-6’: Langmuir Model
Authors: Li Li Fen , Zhang Lin , Liang Xi Xia
Published: December 2012

The AFPs and water molecules are considered together when they adsorb on the ice surface in this article. Based on Myers and Prausnitz’s ideal adsorbed solution theory(IAST) and Langmuir adsorption model, the coverage rate of HPLC-6 on the ice surface is calculated when considering the adsorption of water, and the thermal hysteresis temperature of HPLC-6 is also given. The results show that the thermal hysteresis temperature increases as the concentration increases, and the theoretical result is agreement with experimental data.
The Effect of Alkali Treatment to the Properties of Banana Fibers
Authors: Tian Lin , Chen Su Ying , Bi Xiao Yun
Published: December 2012

Banana fibers were processed with different concentration of alkali solution and different process time. The change of tensile properties, linear density and crimp of fibers before and after process was analyzed. The results showed that the elongation at break of banana fibers increased, the initial modulus decreased and lots of crimp were produced after alkali treatment. However, the linear density increased and the strength decreased.
Synthesis and Characterization of Spherical Aggregations of Organic-ZnS Hybrids
Authors: Yang Jun Song
Published: December 2012

By using a novel terpyridine-based dye (4-(4-2-[dimethyl4,4'-(phenylazanediyl) dibenzoate]phenyl)-2,2:6,2-terpyri-dine(L)) as a surface stabilizing agent, novel dye-capped ZnS were obtained. The photophysical properties of these dye-capped ZnS have been investigated experimentally. These hybrid particles (ZnS/L) aggregate a large spherical structure observed by scanning electron microscope (SEM) exhibiting novel luminescent properties, which differ from those of the pure L.
Study of the Damage of Drills in Dry Drilling of NM360 Steels
Authors: Xu Ming San , Jiang Ji Bin , Zeng Shou Jin
Published: December 2012

According to the characteristics of NM360, a contrast experiment for drilling performance in YG8 cemented carbide twist drill, high-speed steel twist drill and factories used in coating the ordinary high-speed steel twist drill has been done. Using microscope to observe the damage of drills, we found that form this experiment some causation in tool invalidation that tool breakage is main factor for the high-speed steel drill bits, brittle fracture is main factor for carbide drill bits. Brittle carbide cutting tools, feed speed too much impact load is too large, causing the blade fracture. As the tool edge wedge angle is too small, poor edge strength, easy chipping, edge wedge angle can not be too small.
Dissimilar Welding between AISI 304 Stainless Steel and AISI 1020 Carbon Steel Plates
Authors: Chuaiphan Wichan , Somrerk Chandra Ambhorn , Niltawach Satian , Sornil Banleng
Published: December 2012

Abstract. This work studied the feasibility of dissimilar welding between AISI 304 stainless steel and AISI 1020 carbon steel plates with the thickness of 15 mm. The processes applied in this work were gas tungsten arc welding (GTAW) and shield metal arc welding (SMAW). Microstructure of weld metal produced by GTAW consists of delta ferrite network in austenite matrix, while the dendrite of delta ferrite finely distributed in austenite matrix was found in the weld produced by SMAW. Hardness values of weld metals produced using these two techniques were superior to those of stainless steel and carbon steel base metals respectively. Weld metals produced by these two processes were qualified under tension and bending. This was justified by the result that the failed part after transverse tensile test was on carbon steel, and no crack was found in weld metal after U-shape bending. Impact test exhibited higher toughness of weld metal produced by GTAW than that produced by SMAW. This might be from microstructure of the former weld as network of delta ferrite in austenite matrix which might help absorb impact energy. Pitting corrosion potential of weld metal produced by GTAW was higher than that produced by SMAW and stainless steel base metal respectively. In the aspect of mechanical and corrosion properties of the weld, GTAW was considered as a promising process that could be used for dissimilar welding between these two metals.
Finite Element Simulating of C/SiC Composite Bolt
Authors: Huang Tao , Zhang Yi Yan
Published: December 2012

A numerical investigation was conducted to determine the mechanical behavior of C/SiC composites bolt under room temperature and elevated temperature. The influence of the contact friction coefficient on the stress and displacement was considered in the finite element analysis. The FEA results provided some valuable data for the engineering application of C/SiC composites bolt.
Multicomponent Y-M-Al-Co(M=Ce, Nd or Pr) Amorphous Alloys Developed by Equiatomic Substitution
Authors: He Shi Wen
Published: December 2012

Novel multicomponent amorphous alloys have been manufactured by the method of equiatomic substitution for the Y element in Y56Al24Co20 amorphous alloy. Y56-xMxAl24Co20(M=Ce, Pr or Nd; x= 5, 10, 15 and 20at.%) alloys with a diameter of 2 mm have been prepared by suction casting. The glass-forming ability(GFA) was characterized by differential scanning calorimetry(DSC). The supercooled liquid region ∆Tx(=Tx-Tg ) and parameter γ (=Tx/(Tg+Tl)) increase with the increasing of the addition element content. The effects of equiatomic element on ∆Tx of Y56Al24Co20 alloy arise from the increasing of the electronegativity difference Δx, the atomic size parameter δ and the valence electron difference Δn. The results suggest that the GFA of some alloys might be improved by the addition of other equiatomic elements substitution for the alloy constituent elements.
Effect of Isothermal Ageing on Damping Capacity of Cu-20.4Al-8.7Mn
Authors: Hao Gang Ling , Xu Qiao Ping , Wang Wei Guo
Published: December 2012

The effect of ageing temperature on damping capacity of the Cu-20.4Al-8.7Mn alloy at room temperature was investigated by internal friction measurements. The results indicated that damping capacity of the alloy exhibits a non-monotonous changing trend with ageing temperature. Ageing at lower temperature of less than 150oC, damping capacity rapidly increses even up to maximum of 0.01 with the increasing ageing temperature, the reason of which should relate with the increased amount of twin boundaries and phase interfaces between martensites due to the thinning and splitting of martensitic plates, whereas when the ageing temperature exceeds 150oC, the damping capacity trends to steeply decrease as the ageing temperature increases until close to a constant in last corresponding to the ageing at higher temperature due to the occurrence and complete finish of transformation of martensites to austenites.
Microstructures and Damping Capacities of AZ91D-0.7%Si Alloy
Authors: Zhang Zhong Ming , Huang Zheng Hua , Ma Ying , Xu Chun Jie
Published: December 2012

Microstructure of as-cast AZ91D alloy doped with 0.7wt% silicon was investigated, the damping capacity of the alloy was measured by cantilever beam technique, and the damping mechanism was also analyzed. The results show that after addition 0.7%Si into AZ91D alloy, the dendritic grains are refined, and Chinese script Mg2Si phase forms in the interdendritic areas. The damping capacities of the alloy are improved by Si addition, and increase with increasing of strain amplitude. The damping behavior of the alloy is mainly resulted from dislocation movement, and can be explained by the theory of Granato and Lücke.
Multi-Fractional Research on Pore Distribution in the Sinter Ore with Different Basicity
Authors: Zhang Qing Jun , Liu Jin Gang , Jiang Li Mei , Mo Wen Ling , Li Yuan Liang , Zhang Yu Zhu
Published: December 2012

The pore distribution of low silica sinter ore samples with different alkalinity was measured by pressure mercury, and the fractal characteristic of pore distribution was calculated with multifractal theory, then metallurgical properties were also obtained, finally, their connection among them was discussed. The results showed that the pore distribution has experienced a process from non-uniform to uniform with increasing alkalinity. When the alkalinity was 2.0, the spectral width Δα was minimum, multifractal structure was more uniform, fractal characteristics was better, in the meantime, the pore distribution was more uniform, and the pores were larger, which improved metallurgical properties. The results also showed that when the alkalinity was 2.0, its metallurgical properties was optimal.
Comprehensive Mathematical Model of Full Oxygen Blast Furnace with Top Recycle Gas Heated by Gasifier
Authors: Meng Jia Le , Tang Hui Qing , Guo Zhan Cheng
Published: December 2012

A comprehensive mathematical model of full oxygen blast furnace with top recycle gas heated by gasifier was established. The model consists of the calculation equations for gas composition of four zones (hearth, belly, lower shaft, top) in the blast furnace, the thermo-chemical balance model of blast furnace, the energy balance model of hot stand-by zone of blast furnace, the shaft efficiency model of blast furnace, the calculation equations for gas composition of gasifier and the thermo-chemical balance model of gasifier. By using this model, the new process was calculated. The results show that coke rate and coal rate of the new process are 200 kg/thm and 190 kg/thm respectively, fuel rate is decreased by 24.7% compared with that of conventional blast furnace. In addition, theoretical combustion temperature decreases with increasing hearth-recycle gas quantity. Increasing of hearth-recycle gas quantity by 10 m3/thm decreases theoretical combustion temperature by 11.6 K. Furthermore, the model could be applied to calculate the operating parameters when the raw materials and fuel conditions are different, and the changing laws of operating parameters under the same raw materials and fuel conditions could also be studied with this model.
Effects of Electromagnetic Field and Lubricate Condition on the Surface Quality of Aluminum Alloy Billet during LFEC Processing
Authors: Qu Fu , Cui Jian Zhong
Published: December 2012

The microstructures of the aluminum billets could be improved markedly by low-frequency electro-magnetic casting (LFEC) processing. In fact, the low-frequency electromagnetic field (LFEF) also has favorite effect on the surface quality of billet. However, few public reports on the surface quality of LFEC aluminum billets could be found. Therefore, a new crystallizer together with a kind of lubricant was designed aiming at lowing surface turning quantity, and the effects of casting velocity, electromagnetic condition and lubrication on the surface quality of aluminum billets were investigated. The results indicate that LFEF together with the lubricate condition would be responsible for the surface quality of the billets, and the high surface quality billets could be achieved by optimizing the casting conditions.
A New Method of Processing High-Precision Micro-Hole with the Femtosecond Laser
Authors: Yang Xiao Jun , Li Ming , Wang Li , Zhao Hua Long , Chen Guang Hua
Published: December 2012

Based on the femtosecond laser processing technology and PZT driving scanning technology,high-precision micro- manufacturing technology is developed. By adjusting the laser parameters and scanning parameters to get micro-hole machining on the flat or curved surface. Hole’s size and surface morphology is observed by using phase contrast microscopy and scanning electron microscopy observations, and the surface roughness is analyzed by the surface profile instrument. The feasibility of diesel injector nozzle processing is verified in practical industry applications. The results show that this method of making micro hole has significant advantages, such as high precision, good consistency, without burrs, good surface roughness and high efficiency. These characteristics can meet the practical application requirements and can be used in various industrial fields.
The Research and Optimization of a 6061 Aluminum Rectangular Tube Extrusion Using Porthole Dies According to the Parameter of Split Ratio
Authors: Lou Shu Mei , Xing Guo Liang , Qin Sheng Xue , Xiao Lin Jing
Published: December 2012

Extrusions of a 6061 aluminum rectangular tube using porthole dies with three assigned different split ratios were simulated by the software DEFORM-3D based on Finite element method. The distributions of stress, equivalent strain rate, temperature, velocity of the deformation materials and the mold stress during the three extrusion processes were obtained, respectively. By analyzing the distributions of those fields, the most reasonable split ratio is selected and then the die structure is modified.
Preparation and Apply of Adjustable Angle Machine for Friction Material on Mixing and Granulation
Authors: Wang Zhen Yu , Wang Tie Shan , Li Song
Published: December 2012

The machine of friction material on mixing and granulation was prepared. In this text, it is showed the working principle、structure parameter and composing parts and means of the machine. It has the character of the inexpensiveness、compactness、sensitivity、safety and convenience、adjustable angle、mixing uniformity and efficiently. With the application of the friction material for disposing, the research will be done from the material to structure.
Functional Finishing of Cotton and Polyester/Cotton Fabrics with a Fluorine-Containing Water and Oil Repellent
Authors: Zhang Jun
Published: December 2012

The application of a fluorine-containing water and oil repellent to cotton and polyester/cotton fabrics was investigated. The influence of dosage of the water and oil repellent, curing temperature and time, and pH of application on water and oil repellencies was discussed to determine the optimized finishing process. In addition, some physical properties of finished fabrics were tested. The results showed that the two fabrics finished with the fluorine-containing water and oil repellent at a low dosage exhibited good water and oil repellencies, and the inherent quality of the fabrics had not been adversely affected.
A Method for Determination of Friction Coefficient in Sheet Metal Forming of Magnesium Alloy
Authors: Ma Xin Wu , Zhao Guo Qun , Li Wen Juan
Published: December 2012

A new method for determination of friction coefficient in sheet metal forming of Mg alloy AZ31B is presented in this paper. The method is based on the bulging test of sheet metal in which the specimen is processed with a hole at the center. The diameter of the hole will increase along the stroke of the punch and the dimensional change of the hole has a certain relationship with the friction coefficient at the punch/specimen interface. Thus, the friction coefficient can be determined indirectly according to the dimension of the hole in the bulging process. The bulging process of the sheet is simulated using FE code DEFORM-2D. The analysis model is set up according to the experiment of the bulging and the friction calibration curves are generated from the simulations of the bulging by setting different coefficients of friction. The friction coefficient can be determined by measuring the hole dimension during the bulging process and comparing it with the friction calibration curves.
Electrochemical Polymerization and Electrochromic Properties of Poly(3-methoxythiophene)/NiO Composite Films
Authors: Li Wen Ting , Wang Ya Ting , Song Xu Chun
Published: December 2012

Poly(3-methoxythiophene)/NiO (PMOT/NiO) composite films were electrochemically synthesized on a ITO surface in the ionic liquid 1-butyl-3-metyllimidazolium hexafluorophosphate ([BMIM]PF6) by a potentiodynamic polymerization method. The PMOT/NiO composite films were characterized by energy-dispersive X-ray analysis(EDS) and scanning electron microscopy (SEM). Electrochemistry properties of the prepared film was characterized by cyclic voltammetry. Spectroelectrochemistry and electrochromic properties of the PMOT/NiO composite were characterized using various experiment techniques in [BMIM]PF6.
Stress-Etching Using Laser Electrochemical Micromachining with Masks
Authors: Li Zhong Yang , Zhang Zhao Yang , Wang Yao Min , Mao Wei Ping
Published: December 2012

Metal workpiece was processed by nanosecond pulsed laser electrochemical micro-etching with masks patterns in the shape of letter "E". In the experimental system established, the effect of different laser energy on processing quality was studied in air. In the different concentrations of the electrolyte, through optimized composite machining parameters, machining results of different laser energy with the masks were analyzed and compared in Aluminum alloy and Stainless steel. There was a large of difference in machining morphology by laser electrochemical micromachining with masks in two different metal materials. The results show that laser electrochemical micro-etching with masks has high efficiency and the prospects for the large-scale production, but the etching precision should be also further improved. Moreover, the nanosecond pulsed laser thermal-stress etching, electrochemical etching and the two combined coupling etching are the main factors to achieve the metal removal.
Influence of Melt Temperature on Structure of Polyacrylonitrile in Ionic Liquids during Plasticized Melt Spinning Process
Authors: Tian Yin Cai , Han Ke Qing , Zhang Wen Hui , Zhang Jing Jie , Zhang Rui , Liu Shu Ping , Yu Mu Huo
Published: December 2012

The carbon fiber has excellent properties; however, the high cost limited its wide application. Here we report a novel process to reduce the heat emission during stabilization by in situ modification of spinning melt. In this paper, the effect of extruding temperature on the structures of PAN in the PAN/ILs melt was investigated by twin-screw extruder. FTIR and UV-vis absorption spectra of modified samples showed the formation of C=C and C=N group, which indicated the occurrence of cyclization and dehydrogenation reactions of PAN during extrusion process. The degree of cyclization was calculated from DSC test and the degree of cyclization can be up to 24.5% with the residence time of 14 min at 210 oC, which could decrease the heat release in the subsequent stabilization process during carbon fiber production. Therefore, this method should be benefit to improve the processing efficiency during stabilization process.
A Study of Femtosecond Laser Machining Technology Applied in Air-Film Holes on Turbine Blades
Authors: Zhao Hua Long , Zhu Wen Yu , Yang Xiao Jun , Gao Shi Fang , Zhao Hong Yan
Published: December 2012

Femtosecond laser with the features of ultrashort pulse duration and ultrahigh peak power can achieve “cold” machining. The recast layer and micro-cracks of the hole wall can be ruduced effectively by applying femtosecond laser in processing air-film holes on turbine blades, and the machining accuracy and consistency of the hole shape will increase. In this paper, the high-speed rotating femtosecond laser beam is adopted in several currently used turbine blade materials for air-film holes machining, and high quality air-film holes without hole wall recast layer and micro-cracks are processed through a large number of experiments to optimize machining technology and technological parameter.
Preparation of Fly Ash Hollow Glass Bead/Titanium Dioxide Composites by Chemical Precipitation
Authors: Wang Meng Meng , Ding Hao , Zheng Yun Xing , Liang Yu
Published: December 2012

To obtain a kind of composite particles material which has the property of both fly ash glass beads (FA) and titanium dioxide (TD), chemical hydrolysis precipitation method was adopted. Each process condition was investigated and the results were characterized by titanyl sulfate hydrolysis rate and the effect of FA coated TD. Composite structure and properties were characterized by means of X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and testing physical properties of FA/TD. The results show that the surface of FA has been coated with TD uniformly and compactly after titanyl sulfate hydrolysis and cladding content roasted. The optimal preparation conditions are hydrolysis cladding temperature 100°C, time 180min, matrix slurry concentration 0.5%, titanyl sulfate solution dosage 0.5g/g and titanyl sulfate solution drop way for the graded way. The hiding power and whiteness of the composite powder are respectively 35.47 g/m2 and 54.43. The results also show that the composite powder has similar pigment performances with TD and it is much whiter than material.
Finite Element Analysis of High Speed Cutting Tool
Authors: Fan Wei , Liu Xin
Published: December 2012

The cutting principle of high speed machining is analyzed, and the key technology of building high speed cutting finite element simulation model is systemic explained. By simplifying high speed cutting process, using the fastest solution of nonlinear finite element software ADINA which is development in recent years to establish the three dimensional finite element model of high speed metal cutting, and to predict the cutting force of different cutting tool geometry parameter combination of high speed cutting process, the high speed cutting processing cutting tool analysis and processing parameter optimization analysis method are put forwarded, so as to provide a new tool for the research of high speed machining process and provide basis for the cutting tool choice during high-speed nc cutting process.
Surface Modification of the Polyethersulfone Membrane by Low Pressure Argon Plasma Treatment
Authors: Li Ru , Deng Ji Fei , Liu Fen Fen
Published: December 2012

In this study, low pressure Ar plasma is used to improve the surface hydrophilicity of the polyethersulfone (PES) membrane. The low pressure Ar plasma generated by radio frequency (RF) glow discharge was acted on the PES membrane surface to observe the change of the hydrophilic nature. This paper discusses the different plasma power, treatment time and plasma fluxes conditions on PES membrane modified influence. Experimental results show that with the plasma power and plasma fluxes increase and treatment time prolonged, the surface hydrophilicity of the PES membrane continues to increase and no more changes were observed when it reached to a certain value. The best condition was carried out at 60W, 120s, 20sccm, in this condition, the hydrophilic nature of the PES membrane is remarkably improved.
Electrical and Optical Characterization of Cold Atmospheric Pressure Plasma Jet and the Effects of N2 Gas on Argon Plasma Discharge
Authors: Sharma Vinita , Hosoi Katsuhiko , Mori Tamio , Kuroda Shin-ichi
Published: December 2012

In this study, we conducted experiments to investigate the electrical and optical characteristics of a non-equilibrium Ar-N2 plasma discharge at atmospheric pressure. To obtain the plasma discharge we used our indigenously designed plasma generating device named CAPPLAT (Cold Atmospheric Pressure Plasma Torch) which was manufactured by Cresur Corporation. The plasma discharge obtained with only Ar gas was quite filamentary. So, to achieve a homogeneous discharge N2 gas was admixed. The effects of different volumes of admixed N2 gas were also studied. The optical emission spectroscopy was used to study the active charged species in the plasma discharges. The further increased volume of N2 gas further suppressed the emission intensity of Ar metastables but at the same time the emission intensity of the second positive system of nitrogen molecules (N2(C3Πu) enhanced significantly. It can be concluded that in Ar- plasma discharge, argon metastables are the main energy carriers but when N2 gas is added to the feeding gas (Ar) for plasma generation, the second positive system of nitrogen molecules (N2(C3Πu) become the main energy carriers. On the other hand the addition of the N2 gas doesn’t change the electrical characteristics of plasma discharge significantly. To identify the effectiveness of the CAPPLAT as a tool for sterilization, highly environmental stress resistant bacterial (Bacillus subtilis) endospores were treated for different durations. We could successfully deactivate the population of 1.0X107 to 4.0X107 Bacillus endospores/ml. The details of this experiment are discussed in our next paper.
Analysis of HDPE Crystallization for Axial Symmetric Cast
Authors: Xie Yi Huan
Published: December 2012

The paper studied the time depended crystallinity in a PE cast during the cooling process in mold. According to the competition theory between crystallization and its decomposition in HDPE polymer, a thermodynamic model and the differential equation for crystallization by cooling HDPE polymer was set up. A deference method was applied to solve the differential equation. The temperature and crystallinity were given in form of contour lines for an axial symmetric thick workpeace, and criterion based on the surface crystallization was proposed to determine the correct stripping time in a casting process. The model and the method are capable of calculating temperature and crystal concentration at any time and any mass point in a cast body, and are helpful for the choice of appropriate casting technology.
Indoor Study of Viscosity Reducer for Thickened Oil of Huancai
Authors: Liu Qing Wang , Wang Xin , Fan Zhen Zhong , Wang Jiao , Gao Rui , Kong Ling Da
Published: December 2012

Liaohe oil field block 58 for Huancai, the efficiency of production of thickened oil is low, and the efficiency of displacement is worse, likely to cause other issues. Researching and developing an type of Heavy Oil Viscosity Reducer for exploiting. The high viscosity of W/O emulsion changed into low viscosity O/W emulsion to facilitate recovery, enhanced oil recovery. Through the experiment determine the viscosity properties of Heavy Oil Viscosity Reducer. The oil/water interfacial tension is lower than 0.0031mN•m-1, salt-resisting is good. The efficiency of viscosity reduction is higher than 90%, and also good at 180°C.
Fluorescence Spectrum of CdTe Quantum Dots Solution in Ostwald Ripening Process at Room Temperature
Authors: An Li Min , Han Xue Ting , Chen Xuan Lin , Gao Shao Hong , Cai Xi Ping , Fu Xu , Zhu He , Liu Jian Nan , Xi Xiang Chun , Sun Pu Nan , Ye Hong An , Sun Zhuo
Published: December 2012

We have developed a new, simple, green and very reproducible aqueous synthesis method for the preparation of different sizes CdTe QDs without the use of any pyrophoric organometallic precursors. Transmission electron microscope image demonstrates the shape, monodispersity, average size and size distribution. Two different sizes CdTe QDs are mixed and standing for three months in aqueous solution. Through UV-Vis absorption spectroscopy and fluorescence spectrum detection, we confirm Ostwald ripening process can also occur in CdTe QDs mixed solution for a long time at room temperature.
Patent Analysis on Graphene Materials in Lithium-Ion Batteries
Authors: Liu Jia , Zhang Ming Hui , You Chao , Su Min , Tang Zhi Yong , Liu Peng
Published: December 2012

Graphene is one of the most promising new electrochemical materials for lithium-ion batteries (LIBs) because of its superior electronic properties. In this work, we describe the patent map on graphene-based LIBs. We discuss the time-line for the amount of patent applications on LIBs, the nation and applicant distribution of the patent applications. We analysis the technology distribution in this field, which shows that applications about graphene-based cathode increase really fast. According to the analyse result, the Chinese patents have occupied the leading position in this new field but the applications are mostly submitted by colleges and research institutes, which suggests that few inventions have been implemented. In order to hold the market trends and improve competitiveness, it is necessary to keep eyes on worldwide patent application situations and build effective patent strategy, therefore, we also raise some advices and countermeasures about the graphene-based LIBs.
Research and Development of the Low Twist Yarn
Authors: Li Hong , Sun Run Jun , Dong Jie , Liu Cheng Kun
Published: December 2012

Using pure cottons as raw materials, a variety of specifications of the low twist yarns were produced through configuration of yarns’ counts, twist of single and ply yarns to ensure strength of yarn weaving. Strength, evenness, hairiness and other properties of the low twist yarns were also investigated. Production process is non-pollution, short, and low cost. The fabric products are fluffy and soft, absorbent, warm and full.
Tribological Characteristics of Different Components on C/C-SiC Composites Fabricated by Warm Compacted In Situ Reaction
Authors: Li Zhuan , Xiao Peng , Xiong Xiang
Published: December 2012

C/C-SiC brake composites, based on reinforcement of carbon fiber and dual matrix of carbon and silicon carbide, were fabricated by warm compacted-in situ reacted process. Rules about the influence of different components on the friction and wear characteristics of the C/C-SiC composites are ascertained. As hard particle, the SiC has the function to the formation of friction film, which is in favor of increasing the coefficient of friction (COF) and decreasing the wear rate. The resin carbon plays the role of enhancing the COF, but they are easy to be cut and increase the wear rate. The graphite plays the lubrication function, and right volume content of graphite is helpful to forming friction film to reduce the wear rate. The C/C-SiC composite fabricated by the warm compacted-in situ reaction can with best tribological performance when the components volume fraction of carbon fibre, SiC, graphite and resin carbon are 15.5%, 37.0%, 22.1% and 20.8%, respectively, which the COF and the wear rate can reach the maximum and the minimun value of 0.44 and 1.1μm/cycle respectively.
Influence of the Catalyst on the Synthesis of SIPE
Authors: Guan Li Tao , Yang Chong Ling
Published: December 2012

The influence of the catalyst type and content on the synthesis of SIPE was studied in the paper. The result revealed that 0.4% Zn(Ac)2 is the optimum formulation to afford a desired SIPE.
Effect of Physical Factors on Viscosity of Polyacrylamide Solution Prepared by Oilfield Produced Water
Authors: Feng Shi De , Yuan Dan Dan , Dong Jing , Ma Shu Qing , Sui Xin , Wu Hong Jun , Wang Bao Hui
Published: December 2012

In the recent industrial practice, the produced water has been used for the preparation of polyacrylamide (PAM) for the enhancement of oil recovery in Chinese oilfields. With more affecting factors than the tap water, the produced water, originating from the existence of complicated constituents in the water, leads to the worth viscosity of the PAM solution. In this paper, the affecting factors were identified and evaluated by the analysis of the PAM operations of preparation, storage and production in Daqing oilfield. Effects of physical factors on PAM viscosity were studied in the lab test for understanding and controlling the viscosity. The results show that the dominant physical factors are composed of the heat, storage time, mechanical stress and photo/sonic radiation. Most notably viscosity degradation of PAM solution was exhibited by actions of most of the factors. By the results, the mechanism of the controlling viscosity was briefly proposed and discussed. These data can be provided and suitably specified for the benefit of polymer flooding production.
Application of Twin Screw Extruder in Cellulose Dissolution with Ionic Liquid
Authors: Gibril Magdi E. , Li Hai Feng , Li Xin Da , Li Huan , Zhong Xuan , Zhang Yue , Han Ke Qing , Yu Mu Huo
Published: December 2012

Twin-screw extruder was used as a dissolution unit for microcrystalline cellulose with ionic liquid. Ionic liquid (1-butyl-3-methylimidazolium chloride) was applied as solvent and plasticizer; it was mixed with cellulose to prepare the extrusion mixture. The extrusion mixture was feed into twin screw extruder which was run under conditions; speed 65 rpm and 1400C. In order to determine whether the cellulose I has been transformed into cellulose II, the solubility, structure, crystallinty and thermal stability of the extrude cellulose were investigated by polarizing Optical microscope, FTIR, XRD and TGA, respectively. The results which were obtained from polarizing optical microscope showed a clear cellulose solution without undissolved cellulose. FTIR confirmed the transfer cellulose I into cellulose II. XRD result showed a decrease in degree of crystallinity and confirmed the change of cellulose I into cellulose II. Finally, TGA analysis approved that the thermal stability was decreased according to the decrease in crystallinity.
The Test of Amine Polymeric Alcohol Drilling Fluid System in Baka Block
Authors: Sun Yu Xue , Xu Bo , Xie Yu Ning
Published: December 2012

2500 meters below Baka block appears extremely thick coal seam and distributed long, unconsolidated and mixed up with carbonaceous mudstone between beds. The relieved stress after a new borehole is drilled will lead to the wellbore caving and peeling and finally form an approximate elliptic borehole, causing vicious accidents such as bit bouncing, bit freezing while tripping and even borehole discarding. The anti-sloughing capability of Amine Polymeric Alcohol (AP-1) was evaluated by tertiary recovery test and core immersing test, the formula of Amine Polymeric Alcohol drilling fluid system was also optimized. Indoor research shows that the drilling fluid is of strong inhibition and pollution resistance. Its plastic viscosity is 24 mPa•s, shear force is 11 Pa and permeability recovery value reached（81.9-89.6）%. The successful test in Ke 21 Ping 1 well indicates that Amine Polymeric Alcohol drilling fluid system with powerful inhibition can effectively solve the collapse of Jurassic coal seam and carbonaceous mudstone, present high lubricity and can improve the drilling speed effectively, meanwhile, it performances well in gaining reservoir protection, controlling drilling fluid rheological properties, enhancing pollution resistance and reducing the occurrence of complex accidents downhole. Thus it can provide reference for future drilling operation in sloughing formations.