bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Fatigue Resistance Performance of Flexible Fiber and Rigid Fiber Reinforced Concrete
Authors: Liu Ke , Wang Yan Ming , Yang Wen Wen , Sun Yong
Published: January 2012

The fiber reinforced concrete with flexible fiber and rigid fiber respectively added into C30 plain concrete, curing under standard condition for 28 days, was used for fatigue resistance performance experiment. The flexible fiber is American Dura fiber and Chinese nylon fiber. The rigid fiber is Chinese steel fiber. The fatigue resistance property was evaluated by the residual strength after 400 thousand times fatigue damage. The result shows that the residual strength of C30 plain concrete was only 35.0% of initial value, but the residual strength of C30 fiber reinforced concrete still remained 75%~90% of initial value. The residual strength of steel fiber concrete, Dura fiber concrete, nylon fiber concrete, is respectively 2.5, 2.3 and 2.1 times of the plain concrete. The fiber reinforced concrete improves the fatigue resistance property compared with the plain concrete. The fatigue resistance ability of flexible fiber and rigid fiber reinforced concrete is close to each other.
The Effects of Sputtering Pressure on the Properties of Carbon Counter Electrodes for Dye-Sensitized Solar Cells
Authors: Liu Shu Hong , Liu Gui Shan , Shen Xiao Yue , Hu Zhi Qiang
Published: January 2012

The carbon counter electrodes for Dye-sensitized solar cells (DSSCs) were deposited on FTO glass using graphite target by bipolar pulse magnetron sputtering. The effects of sputtering pressure on the structures and properties for carbon films were investigated. The carbon bond structure was analyzed by Raman spectra. The sheet resistance of carbon film was detected by four-probe tester. The transmittance was tested by UV-visible spectrum. The performance of DSSCs was tested by solar simulator after the cells assembled. The results indicated that the ratio of ID/IG reduced, the degree of graphitization decreased, sheet resistance raised, transmittance increased and photoelectric conversion efficiency reduced with the increasing of sputtering pressure.
Evaluation on Chloride Cracking of S135 High-Strength Drill Pipe
Authors: Zhi Zhang , Zhou Xiao Yu , Zeng De Zhi , Zhang Ji Yin , Shi Tai He
Published: January 2012

During the process of deep drilling with high temperature and high pressure, downhole drilling tools might be exposed to various corrosive mediums, such as water/oil-based drilling fluid systems, dissolved oxygen, H2S/CO2, halogen elements (Cl- and Br-), etc. Halogen elements existing in the drilling fluid are ions promoting corrosion of metals. This effect is mainly manifested in the forms of uniform corrosion, pitting corrosion, stress corrosion cracking, etc. of carbon steel. Quality of the drill pipe is determined by the DP body, joint and welding area of the drill pipe. Reasonable friction welding process and proper post weld heat treatment can make the mechanical property of weld joint satisfy related standards. If process of friction welding or post weld heat treatment is improper, the weld joint will be easily damaged and accidents of pricking, breaking, etc will be likely aroused. This paper carries out an evaluation experiment of chloride cracking on the DP body, joints and weld joints of the high-strength drill pipe (S135) and discusses corrosion of the high-strength drill pipe caused by chloride ions.
Development of Various Business Incubation Parks
Authors: Zheng Lei Na , Pan Tie Jun
Published: January 2012

Based on the theoretical and practical demands, this paper makes the systematic analysis on the modeling from the perspective of performance evaluation of the business incubation parks both home and abroad to lay the foundation for constructing performance evaluation system and model to analyze the management of business incubation parks in Zhejiang Province.
Effect of Annealing Temperature on Phosphorus Segregation at Grain Boundary in a Ti-IF Steel
Authors: Song Xin Li , Yuan Ze Xi , Jia Juan , Fan Li Xia , Peng Kun , Li Meng , Li Ping He
Published: January 2012

The concentration of phosphorus at grain boundary of the Ti-IF steel annealed for 180sec at 780°C、810°C and 840°C respectively is measured by auger electron spectroscopy (AES). The results show that the segregation concentration of phosphorus at grain boundary decreases with increasing annealing temperature from 780 to 840°C. The maximum phosphorus concentration at grain boundary is 13.5at% or so for the specimen annealed for 180sec at 780°C. Most of the grains are intergranular crack and there are a few secondary crack for the samples annealed at 780°C and 810°C. The grains grow up and the cleavage planes increase with increasing the annealing temperature from 780 to 840°C.
Sheet Single Point Vibration Incremental Forming Process Simulation and Analysis of Process Parameters
Authors: Cai Gai Pin , Xing Cong Wen , Jiang Zhi Hong , Zhang Zhong Kai
Published: January 2012

The deformation of vibration incremental forming process for sheet metal is in high complexity, theory research is not perfect. This subject using DEFORM simulation software, joined the vibration on the forming process of tool head and simulated the forming process base on different tool radius and vibration parameters. Simulation result indicated that vibration in greatly reduced the stress of the forming tool head. The right vibration parameters smoothed out the forming force largely, reduced sheet metal stress concentration, improved product quality and product yield. That has a higher degree of study and use value.
Primary Understanding on the Issue of the Hainan Provincial Environmental Geology
Authors: Wei Hong , Liu Ya Yang , Xia Xiao Bing , Liu Hong Lin
Published: January 2012

This paper is talking about main problems and their precautions on environmental geology in Hainan province. On the base of research, the paper gives a panorama of the main problems in Hainan province. Through the further analysis on these problems, some methods and actions which used to solve the problems had been put forward.
Fabrication of Aluminiferous Nanofibers by Simple Hydrolysis of Nanosized Al/AlN Powder
Authors: Liu Guang Hui , Du Shi Yong
Published: January 2012

The nanosized Al/AlN powder was immersed in deionized water to investigate their hydrolysis behavior from 40 °C to 80 °C. The Al/AlN powder hydrolysis behavior was observed by measuring the pH of the suspension, whereas XRD and TEM analyses were employed for the characterization of the hydrolytic products. The hydrolysis at the higher temperature was different from that at the lower temperature. The nanofibrous crystalline boehmite was formed mainly over 80 °C, while the bayerite (Al (OH3)) coexisted with the boehmite predominantly below 70 °C. The hydrolytic product showed the higher specific surface area at 70 °C than that of the hydrolytic product at other temperatures. The highest specific surface area of hydrolytic product was 145.84m2/g.
Application of Asymmetric Eigenvalue Method for Dynamic Analysis of Aqueducts
Authors: Yang Yang , Ren Jian Min , Liu De Zhi
Published: January 2012

Taking into consideration of the boundary conditions in fluid-solid interactions, the author built the FSI large rectangle aqueduct model of dynamic analysis according to the equation dynamic performance of the fluid-solid coupling system. Large aqueduct of the dynamic properties were analyzed with asymmetric eigenvalue method, dynamic properties rules were calculated by changing the depth of the water in the aqueduct. Aqueduct, also called elevated canal, is usually built over valley, lower land or river for conducting water from a distance or even for shipping.The aqueduct is one of the most important hydraulic structures in Yindaruqin Irrigation Project. After aqueduct is built, all kinds of reasons get its degree of safety descent so as to affect its ordinary running with the time going. Based on fluid-solid coupling system, a FSI analysis model of the aqueduct structure is established.
Soil Pollution Investigation of Chromium Slag Contaminated Site
Authors: Wang Zhi Li , Zhang Huan Zhen , Wang You Ping , Yu Wei Hua
Published: January 2012

In this paper, a chemical plant of chromium salt was selected as the typical chromium slag contaminated site. The range and level of chromium in soil were tested by way of digestion and leaching in order to investigate the pollution of chromium slag. Speciation of chromium in soil was simultaneously analyzed by way of Tessier. The results showed that soil around the residue piling yard was polluted by Cr. Concentrations of Cr (VI) and total chromium in soil were both higher than the background value. Speciation analysis indicated that Cr in contaminated soil was mainly in the residual fraction. The data of investigation display chromium slag diffusion rule in horizontal direction is accord with particulate matter non-point source diffusion model.
Microstructure Evolution of Nb Containing Steel during Simulated Hot Charging
Authors: Li Jiang , Wang Qian , Lu Yong Jian
Published: January 2012

The method to avoid the formation of hot cracking in hot charging process is analyzed in this paper. The microstructure evolution of Nb containing steel during hot charging process was investigated by simulation with a HT-1600 pipe furnace. The results indicate that the microstructure varied from γ→γ+α→α+P with the charging temperature decrease from 950°C to room temperature, and the duplex phase of austenite and ferrite appeared at 750°C. Microstructure of the specimen at the beginning of rough rolling is austenite and the grain size is similar when the reheated temperature is above 850°C. Furthermore, severe mixed grain structure with coarse grain is apparent during the hot charging temperature from 750°C to 650°C. The hot charging temperature close to A1and hot charging at 550°C is appropriate for saving energy and avoiding slab surface cracking in heating furnace.
Power Optimal Utilization of DС Bus Micro-Grid System
Authors: Zhao Yao , Cheng Ru Qi , Zhao Geng Shen , Zha Zhi Hua
Published: January 2012

Multiple distributed generations construct the micro-grid system through the DC bus, each distributed generation has its own maximum power point, research on the method to improve the overall utilization of the DC bus. Discussed the micro-grid including solar photovoltaic and wind power generations, built the mathematical model of the two generations, used simulation methods to get the power output curve, proposed the improved MPPT method for the DC bus to obtain maximum power. Through micro-grid experimental platform, verify the method is effective to improve the energy utilization efficiency of the DC bus.
Topology Optimization Design of High Pressure Storage Tank Structure
Authors: Ma Qiu Sheng , Cai Yi , Tian Dong Xing
Published: January 2012

In this paper, based on ANSYS the topology optimization design for high pressure storage tank was studied by the means of the finite element structural analysis and optimization. the finite element model for optimization design was established. The design variables influence factors and rules on the optimization results are summarized. according to the calculation results the optimal design result for tank is determined considering the manufacturing and processing. The calculation results show that the method is effective in optimization design and provide the basis to further design high pressure tank.
The Modification of Mechanical Properties of Changbai Mountain Smell Pine Used by Floor
Authors: Niu Xiao Yi , Bai Yu Wen , Wang Xue
Published: January 2012

In this experiment, do smell pine impregnated pressure experiments with small molecules phenolic resin. Prepare different small molecules and phenolic resin by orthogonal.Handle the specimens. Compare the treated material with the smell pine. The optimum condition is the temperature of 60°C, PVA: P (mass ratio) = 3%, P: F: NaOH (molar ratio) = 1:1.2:0.3, the absolute pressure 2.5 Mpa, the temperature of 120 °C hot 15 minutes under the conditions. While smell pine laminated veneer lumber bending strength increased 67.53%.
The Mechanism Research of Forming Belt of Belt Insulation Board Machine
Authors: Sun Jun , Xu Tong
Published: January 2012

This paper aims to research the method of rational designing the distance between steel wire rope and also to analyze and calculate the effect of transverse distortion during designing the size of forming rubber belt when the belt works. Finite element model was established to calculate the transverse distortion of forming rubber belt as the distance between steel wire rope increases. The results show that the transverse distortion of forming rubber belt will increase when the distance between steel wire rope increases. The variation curve of the transverse distortion of formative rubber belt and the distance between steel wire rope is also obtained. The conclusion is that the dimensional change of insulation board forming machine rubber belt has great effect on forming insulation board. The computational method in this text aims to help for correctly designing the size of forming rubber belt.
Effect of Exopolysaccharide Producing Lactic Acid Bacterial on the Gelation and Texture Properties of Yogurt
Authors: Zhang Shuang , Zhang Lan Wei
Published: January 2012

Lactic acid bacterial play a important role in yogurt texture and gel quality. The performance of lactic acid bacteria starter directly affected the quality of yogurt. Exopolysaccharide (EPS)-producing LAB may improve the texture of fermented milks, depending on the strain. EPS production was found to have a major effect on the texture properties and gelation properties, but varying textures with EPS production, structure and interaction with milk proteins. Yoghurts fermented with EPS-producing cultures showed different mouth thickness and ropiness rheological parameters and varying syneresis and gel ﬁrmness. The mechanism that how the metabolic properties of EPS producing lactic acid bacteria affect the texture and gel quality of yogurt is reviewed in the article.
Hybrid Ant Colony Algorithm for Job Shop Schedule with Unrelated Parallel Machines
Authors: Zhang Jie , Liu Guo Bao
Published: January 2012

According to the widely existing job shop schedule with unrelated parallel machines in the actual manufacturing system, a static model with minimize makespan as optimization goal was established, considering precedence, machine-dependent and sequence-dependent setup times. Since basic ant colony algorithm usually has shortcomings such as long searching time, easy trapped into local optimal solutions, this paper puts forward a hybrid ant colony algorithm adopting elite strategy and maximum and minimum ant colony mechanism. Its performance is evaluated by comparing its solutions with genetic algorithm in the literature. The results indicate the proposed algorithm significantly outperforms the competitor.
Preparation of Al2O3-Supported Ni Catalyst and its Catalytic Hydrogenation Performance
Authors: Liu Wei , Chen Xian Lan , Yang Jin , Li Ying , Zhou Yong Fu , Huang Zhao Long , Yi Zhong Zhou
Published: January 2012

The Al2O3-Supported Ni Catalyst was prepared by chemical reduction method, and take benzaldehyde as catalytic hydrogenation model to explore the effect in catalytic hydrogenation of benzaldehyde at different time and temperatures. The results show that the best temperature is between 60°Cand 80°C, and the catalytic time is about 1-2 h. Furthermore, the catalytic effect of Ni-Co/Al2O3 is best, it should be due to Co and Ni forming to alloys and obtain the function of the dual catalyst, which is conducive to benzaldehyde was activated and forming benzyl alcohol.
A General Approach for Automatically Constructing CAD Models of Human Teeth
Authors: Li Qiong , Rubin Carol A.
Published: January 2012

This paper presents a general approach for automating the process of constructing 2D CAD models of human teeth. The generated CAD models are parametric models taking tooth type, cross sectional directions and measurements as parameters. The outline of the tooth models are composed of smooth cubic spline curves. Before generating 2D surfaces for tooth parts, the information of the generated spline curves is retrieved for correctness checking. The approach is implemented into C language and Pro/toolkit for automatically generating CAD tooth models.
Study on Consumables of Ink-Jet Printing in Producing PCB
Authors: Liao Mei Hong
Published: January 2012

Ink-jet printing technology has been applied in producing PCB, but it hasn’t formed a large-scale industrialized production in general. This paper summarizes the types and problems of consumables of ink-jet printing in producing PCB.
Gas Phase Phosphorus Heavily-Doped FZ Silicon Thermal Field Design and Growth Method
Authors: Zhang Xue Nan , Li Jian Hong , Wang Yu Tian , Zhang Chang Xu , Yang Chun Geng , Shen Hao Ping , Wang Ji Hui
Published: January 2012

This paper introduces the fabrication method of a kind of gas phase phosphorus heavily-doped float zone (FZ) silicon, including thermal field design (electromagnetic copper coil with double water cooling system). This method solves the problems during the pulling process of heavily-doped FZ silicon crystal of phosphorus doped. The gas phase phosphorus heavily-doped FZ silicon crystal using this methods with low oxygen content (less than 0.2ppma),low radial resistivity variation (less than 10%), low resistivity (the minimum of 0.002 ohm.cm), and is good to meet the transient voltage suppressor (TVS) for silicon substrate material requirements.
The In Situ Shear Strength of Roller Compacted Concrete in the Dam of Jinghong Hydropower Station
Authors: Xie Jian Bin , Fan Jing , He Tian Chun , Tang Chun Feng
Published: January 2012

For roller compacted concrete with the admixtures of grinding limestone powder and water quenched iron slag powder (shortly called double admixture RCC) in dam of Jinghong Hydropower station, the raw materials and the mix proportion of the RCC were studied. Then one experiment on in situ shear strength are carried out between hot rise layer and cold rise layer at the altitude of 573.3 meters of RCC in dam block 23 based on the flat push-situ shear test program. The shear strength indexes of hot rise layer and cold rise layer in RCC for Jinghong Hydropower Station are tested by the experiment subsequently. The study results show that the index for interlayer shear strength of the cold rise layer of RCC with 90 days ages in dam are the friction coefficient of 1.12, and the cohesion of 1.22 MPa. The index for interlayer shear strength of the hot rise layer of RCC with 90 days ages in dam are the friction coefficient of 1.32, and the cohesion of 1.24 MPa. The study results also show that the construction processes meet the requirements of the RCC construction and the integrity of hot rise layer of RCC in the dam is better.
Characterization of Casting Defects in Aluminium Alloys
Authors: Wu Guo , O'Reilly Keyna , Galano Marina
Published: January 2012

In this paper, typical defects in aluminium alloys cast by conventional pouring of liquid metal into a cylindrical alumina crucible and an induction melting process are characterized by using macroetching, optical microscopy and scanning electron microscopy. Oxide film defects are generated in both processing methods. Oxide films formed during casting are a major type of defect observed in the microstructures of aluminium alloys products. It has been found that pouring of molten metal into a mould and induction stirring lead to different forms of oxide defects. Under induction stirring, such low-density entrained defects are found to be carried to near the surface of the liquid aluminium alloys and submerged surface oxide films become entangled.
Research on the Quenching Medium Recycling Technology Based on a Melting-Solution Confluence Method
Authors: Chen Li Dong , Fu Chang Zhi , Li Ya Jing , Feng Li Zhen , Fu Yu Xuan
Published: January 2012

In order to avoid the direct discharge of wastewater and the environmental pollution caused by the metal parts quenching treatment, a three-level micro-water washing system is designed, which uses a small amount water to clean the quenched metal parts. The melting-solution confluence method is introduced at the first time to realize the recycling usage of quenching medium in the waste water. The test results show that the use of the technology can achieve maximum water conservation and the quenching medium materials recycling, so that the method does not waste water and the media materials can be recycled more than 90%, and the water consumption is also reduced to nearly 1/20 compared with the original one in the whole production process. The method can be applied not only to shovel type metal parts heat treatment process, also to the related industries.
Experimental Research on the Quantitative Characterizations of Elasticity and Viscosity of Polyacrylamide Solution
Authors: Xia Hui Fen , Zhang Jiu Ran , Ma Wen Guo , Li Xia Ning , Yang Qiu Yue
Published: January 2012

Through creep-recovery and dynamic experiments, the viscoelasticity of polyacrylamide solutions (in short polymer) with different mass concentration are studied, the proportions of elastic part and viscous part in the polymer solution are calculated and the limit of mass concentration called high concentration polymer solution is given. It is indicated that the elastic part of the polymer solution increases firstly and tends to be constant with the increase in mass concentration under low external force condition. The minimum mass concentration of the polymer solution keeping constant elastic part is 1500mg/L. Under low stress and low shear rate conditions, the viscous part of the polymer solution is greater than that of elastic part; but under oil reservoir shear rate (6.283s-1) condition, the elastic part is greater than viscous part, and its elastic part increases with the increase in mass concentrations and the increment becomes smaller.
Research on China's Electronics Listed Company's Financial Risk Probability and Statistics
Authors: Yan Shao Bing , Zhu Wen Qi
Published: January 2012

Different from the traditional manufacturing industry, electronics industry is representative of high-tech industry and its financial risk has its own characteristics. In this paper, I choose 2000-2009 electronic financial data of listed companies as samples and use two yuan logistic regression analysis to build an assessment of China's electronics companies in financial risk probability model for the electronic companies to evaluate their own financial risks, provide a simple reference to the views to reduce the financial risk and give the basic risk prediction for the electronics company's mergers and acquisitions objects.
Identify the Bottleneck of Water Network by Using Graph Theory
Authors: Shen Ren Jie , Jia Qing Gang , Liang Yan Yan , Zhang Jing
Published: January 2012

Water system integration which aims on the bottleneck of the water network is the only effective method. Therefore, it is essential and significant to study the bottleneck identification of water networks. In this paper, the definition and fundamental characteristics of the bottleneck about flow rate in water network are given. The graph theory was engaged to identify the bottleneck of water network. A case study is used to show the method.
Dyeing of Silk with Natural Plant Extract from Rhizoma picrorhizae
Authors: Sun Sha Sha , Wang Jie Jie , Tang Ren Cheng
Published: January 2012

A new concept that uses natural plant extract from Rhizoma Picrorhizae (RP) as a natural dye in silk dyeing was proposed. The RP extract can be adsorbed by silk to provide yellow to brown color, depending on the RP concentration. The stabilities of RP solution against pH, heat, and ultraviolet light were investigated. Factors such as pH, temperature, dyeing time, RP concentration were studied in order to understand the dyeing properties of RP extract for silk fabric. After dyeing, some of the samples are mordanted with different mordants. It was founded that RP extract was stable at acidic conditions and stable to heat and ultraviolet light, and the interactions between silk and RP extract molecules were non-electrostatic interactions; and that RP extract showed good building-up properties on silk. Furthermore, the colors of the dyed fabric mordanted with different mordants as well as their depth were greatly dependent on the chemical nature of mordants. In conclusion, RP was a potential natural dye which can be applied to silk dyeing.
The Comparison between a Natural Reducing Agent and Sodium Dithionite in Vat, Indigo and Sulphur Dyeing on Cotton Fabric
Authors: Motaghi Zahra
Published: January 2012

In recent years, the use of low-environmental impact biotechnology giving rises to new types of treatment in the textile industry. From the environmental point of view, particularly the textile dyeing process constitutes a major pollution problem due to the variety and complexity of chemicals employed. In most industrial vat and indigo, sulphur dyeing processes, all of them are reduced mainly using sodium dithionite. This process produces large amounts of hazardous by-products which increase the costs for waste water treatment. Hence, many attempts are being made to replace the environmentally unfavorable sodium dithionite by ecologically more attractive alternatives, such as organic reducing agents or catalytic hydrogenation and natural reducing agent. In this paper ,a natural reducing agent is introduced that comes from a plant and have been studied on the substance for comparison it with sodium dithionite on vat, indigo and sulphur dyeing on cotton fabrics. The color strength of the samples was analyzed by Reflective Spectrophotometer and the color fastness of them was investigated. The results show that, the use of natural reducing agent in natural indigo dye and sulphur dye is better and for the rest of them has almost good advantage, but it cannot reduce synthetic indigo as well as sodium dithionite. Therefore, with introducing the substance, consumption of chemicals is minimized and vat, indigo and sulphur dyeing should be environmental.
Comparative Study of Gardenia Yellow Dye Adsorption on Cotton Fiber Surface with Reactive and Non-Reactive Modification
Authors: Chai Li Qin , Shao Jian Zhong , Zhou Lan
Published: January 2012

Biquaternary ammonium salt CY and cationic surfactant DAB were investigated as pretreating agents for surface modification of cotton fibers. The measurement of zeta potential was used to indicate the effectiveness of the pretreatment. It was found that CY and DAB both largely enhanced the positive charge on cotton fibers following an increase in the pH. Adsorption studies of gardenia yellow dye on these pretreated cotton fibers showed that both CY and DAB enhance adsorption capacity of gardenia yellow dye on cotton fibers. The zeta potential results and adsorption studies revealed that the uptake of gardenia yellow dye on treated cotton fibers occurs via electrostatic attractions between the anion of the dye and cationic segments of the treated cotton fibers. The washing fastness and crocking fastness of the dyeings were improved after the pretreatments.
Designing Energy-Storage Devices from Textile Materials
Authors: Zhang Xiang Wu , Ji Li Wen , Lin Zhan , Li Ying
Published: January 2012

Research and development in textiles have gone beyond the conventional applications as clothing and furnishing materials; for example, the convergence of textiles, nanotechnologies, and energy science opens up the opportunity to take on one of the major challenges in the 21st century energy. This presentation addresses the development of high-energy lithium-ion batteries using electrospun nanofibers.
A Study on Process Parameters for Plasma Pre-Treatment of Cotton Fiber Prior to Titanium Dioxide Wrinkle-Resistant Treatment
Authors: Lam Y.L. , Kan C.W. , Yuen C.W.M.
Published: January 2012

Titanium dioxide (TiO2) has been found feasible to improve wrinkle resistant property of cotton fiber. In this study, the performance of TiO2 wrinkle resistant treatment was further enhanced by plasma pre-treatment compared with the conventional wet treatment. Different plasma pre-treatment process parameters (treatment speed, i.e. treatment time; oxygen flow rate; and jet-to-substrate distance) were used for determining the optimum conditions (of plasma pre-treatment) for the subsequent wrinkle resistant treatment with TiO2. The optimum conditions for plasma pre-treatment of cotton fabrics before TiO2 treatment were obtained through the orthogonal array testing strategy (OATS): 10mm/s treatment speed, 0.3L/min oxygen flow rate and 6mm jet-to-substrate distance. This was found to be the most effective combination of plasma pre-treatment conditions for improving wrinkle resistant property of cotton fiber. After plasma, if the cotton fiber was treated with 0.1% TiO2, the wrinkle resistant property was further enhanced. Based on the OATS analysis, not only the optimum conditions for plasma pre-treatment could be obtained, but the level of relative importance of the three process parameters could also be obtained.
Surface Treatment of Wool to Achieve Hydrophilic Fibre and the Effect on Subsequent Dyeing and Protease Treatment
Authors: Smith Edward , Shen Jin Song
Published: January 2012

Wool was treated with cetyltrimethylammonium bromide (CTAB) under alkaline conditions to remove the lipid layer from the fibre surface. A reduction in lipid content of 88% could be achieved resulting in a very hydrophilic fibre. The efficiency of dyeing with reactive dyes was improved. When treated with proteolytic enzymes (protease) a loss of enzyme activity occurred due to residual CTAB on the fibre surface. Residual CTAB could be removed from the fibre using solvent or anionic surfactant in acid conditions ensuring enzyme activity. Hydrophilic wool could promote a more efficient proteolytic enzyme treatment process.
Research on Properties of Flame Retardant Silk Georgette
Authors: Lu Hong , Chen Yan , Guan Jin Ping
Published: January 2012

In this paper, four kinds of silk georgettes with different density were chosen as samples. The flame retardant formaldehyde-free vinyl phosphate dimethyl-2-(methacryloyloxyethyl) phosphate (DMMEP) was grafted onto them by graft copolymerization technique. Some tests such as Limiting Oxygen Index (LOI), vertical flammability, wrinkle resistance and color fastness were examined. Through the discussion and analysis of the experiment results, the properties of original and treated fabrics were compared and suggestions were given for the flame retardant process and garment design.
Preparation of PANI/PET Fabric and its Antistatic Property Study
Authors: Li Jun , Wang Lan , Lin Jun Xiong
Published: January 2012

PANI/PET composite fabric was synthesized at the surface of polyester fabric by in-situ polymerization method. The optimum preparation process was determined by unvaried analyses and orthogonal experiment. Meanwhile the performance of PANI/PET composite conductive fabric was characterized. The results showed that the optimum process of PANI/PET composite conductive fabric was as follows: PANI monomer concentration was 0.1mol/L, n [(NH4)2S2O8]:n (An) was 1:1, HCl concentration was 0.5 mol/L, the reaction time was 2 h and the reaction temperature was at 20°C. Under this condition, the half-life of the PANI/PET composite fabric was 0.21 s. At the same time, the breaking tenacity of PANI/PET composite fabric was better than that of polyester fabric
Research and Application of Nanometer Material Self-Cleaning Agent on Textile Fabrics
Authors: Hu Hai Xia
Published: January 2012

By researching on the self-cleaning characteristic of nanometer material, and the dispersion and stability of nanometer particle, a kind of environmentally friendly nanometer finishing agent was exploited and developed. Application results of this nanometer self-cleaning agent on textile fabrics showed that this finishing agent had self-cleaning effect to remove capsicum oil. Generally speaking, over 10% dosage of nanometer material finishing agent would allow the self-cleaning effect completely in 24 hours. Meanwhile, after being finished with this self-cleaning agent, the fabric wearabilities were not changed.
Treatment of Wool Fabrics by Argon Atmospheric Pressure Low Temperature Plasma and its Dyeing
Authors: Wang Hua Qing , Yang Mei
Published: January 2012

With the increase in the environmental protection consciousness of people, attention has focused on plasma technology because of its efficiency and environmentally friendliness. In order to improve the dyeing behavior of wool fabrics, surface modification of wool fabrics was carried out using an atmospheric pressure (argon) low temperature plasma treatment (LTP). Morphology and chemical composition analyses of the treated wool fiber surface were carried out by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The effect on the surface properties of wool fabrics treated for different times was evaluated. The results showed that the coloration of wool fabric is improved with an argon atmospheric pressure low temperature plasma (LTP) treatment but the fabric has a lower color fastness to washing and rubbing. This results from the formation of sulfonic groups and the increase in nitrogen content attributed to more severe etching and oxidization on the surface of wool fibers.
Non-Formaldehyde Polyfunctional Crosslinking System for Cotton
Authors: Vivod Vera , Yang C.Q. , Voncina Bojana
Published: January 2012

Crosslinking of cotton with polycarboxylic acid, applied with catalysts based on phosphorus-containing inorganic acids, produces fabrics with excellent smooth-drying properties, which release no formaldehyde at any stage of preparation or on storage. If polycarboxylic acid has three or more carboxylic acid groups, the formation of such an anhydride can occur more than once and crosslinking of the cellulose molecule occurs. In our research work the use of an unsaturated bifunctional acid (maleic acid) and a phosphorus-containing inorganic compound (sodium hydroxyphosphinite) to obtain durable press finishing properties and flame retardant properties was studied.
Extraction of Functional Capsanthin
Authors: Wu Zan Min , Deng Xiao Jiao , He Zhi Peng , Wang Jun
Published: January 2012

According to the extraction study of capsanthin, the best solvent was acetone, and the optimum extraction conditions were: temperature 338.15K, extraction time 3h, ratio 1:25, extracting 1 time. The results showed that the optical stability of capsanthin extracted from seed-included chilli was better than seed-free chilli. The emulsification effect was excellent when using complex emulsifying agent of Span 60 and Tween 80 to treat oil-soluble pigment.
A Novel Phenolic Rigid Organic Filler/Isotactic Polypropylene Blend
Authors: Qi Dong Ming , Zhang Rui , Xu Jie , Shen Xing Cong , Nitta Koh Hei
Published: January 2012

A novel phenolic rigid organic filler (named K3) was dispersed in isotactic polypropylene matrix (iPP) by melt-mixing process, and a series of K3/iPP blends was prepared with or without maleic anhydride-grafted polypropylene (MAPP) as compatibilizer. The influences of K3 and MAPP on the filler dispersion were studied using Polarized Optical Microscope (POM) and Fourier Transform Infrared Spectroscopy (FTIR). The influences on the modulus of blends were studied by tensile test and Dynamic Mechanical Analysis (DMA). It was found that K3 can be dispersed in iPP matrix in a spherical form and its particles size can be adjusted by MAPP content. The incorporation of K3 and MAPP can obviously improve the Youngs modulus and storage modulus of blends.
Textile Wastewater Treatment Using Combined Process of Biological Wriggle Bed and Ozone Biological Aerated Filter
Authors: Fu Zhi Min , Zhang Yu Gao , Wang Xiao Jun
Published: January 2012

A combined process of biological wriggle bed and ozone biological aerated filter was utilized to treat textile wastewater. Results showed that COD removal efficiency was almost 90.4%. The average effluent COD was 85.87 mg/L. The effluent colority was 64-32 times. This study indicated that the combined process is potentially useful for treating textile wastewater.
Surface Refining Treatment of Filter Media
Authors: Wang Feng , Guo Yu Hai , Zhang Hua Peng , Tang Hong Yan
Published: January 2012

In order to improve filtration efficiency and precision of the filter media, two methods of surface refining treatment were presented, which were the co-stretching PTFE micro-porous membrane and foam coating on nonwoven filter media. During the process of co-stretching, the pore diameters and thickness of the membrane were different on the surface. The double-layer PTFE base sheet was simultaneously stretched, which induced the reduction of pore sizes and uniform thickness of the filter media. After foam coating, the pore sizes of nonwoven filter media were reduced to under 10 μm because of the micro-pore membrane formed on the surface. Therefore, filtration efficiency and precision were remarkably increased.
Adsorption Kinetics and Isotherm of PAHs (Naphthalene) on Silk Fabric
Authors: Mao Wen Liang , Chen Hai Xiang , Wang Lei
Published: January 2012

The main purpose of this study was to characterize the adsorption behavior of naphthalene, one of polycyclic aromatic hydrocarbons (PAHs), on silk fabric. Typical batch reactors were used to perform adsorption kinetics and isotherm experiments. It was found in this study that the pseudo-second-order model described the sorption kinetics data well. An adsorption isotherm in the form of Linear Equation was observed, and the adsorbed capacity was influenced evidently by the enhanced temperature. In addition, the results demonstrated that silk fabric could adsorb large amounts of naphthalene from water, and the maximum exceeded 700 μg/g.
Research on Detecting Tris-(2,3-dibromopropyl)-Phosphate in Textiles with the HPLC/DAD Method
Authors: Fu Ke Jie , Yang Li Sheng , Feng Chang Sheng , Chen Liang
Published: January 2012

A detecting method for toxic flame retardant finishing agent tris-(2,3-dibromopropyl) -phosphate (TRIS for short) in textiles was studied. In the method, an acetonitrile ultrasound-assisted extraction process was included in sample pre-treatment, and HPLC/DAD was used in the separation and identification of extractives. After that, the conditions of pre-treatment and chromatograph were optimized. The results showed that the limit of detection (LOD) by this method (S/N10) is 1.0 mg/kg, its recovery ranged from 78.1% to 98.4%, and RSD of the precision test is 3.2%, of which all met the requirements for routine testing.
Comparison of Color Measuring Methods for Yarn Dyed Woven Fabrics
Authors: Li Qi Zheng , Zhu Cheng Yan
Published: January 2012

The color appearance mode of yarn dyed woven fabric is different from that of color addition mixture and color subtraction mixture. In order to test and verify the differences of different color measuring methods applied to yarn dyed woven fabrics, 16 samples of yarn dyed woven fabrics made of the threads of different colors in different permutation and combination were tested by human eye evaluation, spectrophotometer and digital image processing system in this paper. The results showed that both the spectrophotometer and digital image processing methods were not accurately approximated to the results of human eye evaluation. Relatively, the results of digital image processing method were closer to that of the human eye evaluation. The work of this paper may contribute to promoting the color measurement in yarn dyed fabrics.
Effects of Various Treatments on Structure and Performance of Naturally Green Cotton
Authors: Tang Zhi Rong , Ma Ming Bo , Li Hai Xiang , Zhao Xiao Shuang , Zhou Wen Long
Published: January 2012

Effects of various treatments with distilled water, absolute ethyl alcohol, and ethanol solution assisted with ultrasonic wave and supercritical CO2 on the structure, thermal stability and surface morphology of naturally green cotton were tested by Colorimeter, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscope (SEM), optical microscope and HVI 900A cotton fiber detector. Results showed that ultrasonic wave contributed to pigment extraction and supercritical CO2 treatment promoted pigment to move outward causing deepening color. The data indicated that these treatments had no significant impacts on supramolecular structure, heat-resistant quality, and single fiber strength of green cotton.
A Comparative Study of Colour Fading Behaviour of Cotton Denim Fabric Manufactured by Conventional Ring-Spun and Torque-Free Ring-Spun Yarn by Cellulase Treatment
Authors: Kan C.W. , Yuen C.W.M. , Wong W.Y.
Published: January 2012

The effect of enzyme treatment using neutral cellulase on the colour fading property of cotton denim fabric manufactured by conventional ring-spun and torque-free ring-spun yarn was studied. Four cellulase processing parameters namely treatment temperature, treatment time, pH value and agitation were considered. In order to investigate the optimum condition for the neutral cellulsae treatment, an orthogonal analysis was used and, based on the colour fading percentage (CF%), the optimum condition for cellulase treatment on conventional ring-spun yarn made denim fabric was treatment temperature = 55°C; treatment time = 60 minutes; pH value = 8 and agitation = 100 steel balls (simulated vigorous agitation) for the best colour fading achievement with desired worn and aged effect. While the optimum condition for cellulase treatment on torque-free ring-spun made denim fabric was treatment temperature = 50°C; treatment time = 30 minutes; pH value = 8 and agitation = 50 steel balls (simulated mild agitation) for achieving best colour fading effect. Meanwhile, the level of importance based on the orthogonal analysis of the two types of fabric was not the same.
Study on Production Process of PSF from Recycled Bottle PET Flakes for Waterproof Felt
Authors: Zha An Xia
Published: January 2012

The producing method of oil absorbent felt using recycled polyester bottle flakes is discussed, emphasizing on processes parameters such as dryness, filtration, spinning technique, drawing ratio, and etc.
Research on Mechanism for Virtuous Circle of Technological Import
Authors: Wang He Ping , Wang Fu Yu
Published: January 2012

As we know, due to the imbalance of technological development, all the usable technology is spreading broadly. Accordingly, technological import has become one of the existing economic and technological activities, and the good development of technological import is the basic premise to carry out technological updating and surpassing.By the elaboration of the course of technological import, this article applies the theory of sustainable development to bring in the idea of how to carry out a benign mechanism for technological importing from the perspective of the duty of government and corporation.
Low-Density InAs Quantum Dots Growth by Molecular Beam Epitaxy
Authors: Li Zhan Guo , You Ming Hui , Liu Guo Jun , Gao Xin , Li Lin , Wei Zhi Peng , Li Mei , Wang Yong , Wang Xiao Hua , Li Lian He
Published: January 2012

We investigate the growth of low-density(~4×108cm-2) InAs quantum dots (QDs) on GaAs by molecular beam epitaxy,with emission wavelength up to 1.3 µm at room temperature were achieved. The QDs density are sensitive to growth temperature,growth rate.The optical properties of the QDs annealing temperature used after spacer layer growth that is attributed to the suppressed In segregation from the QDs into the cap layer, reduced the strain in the QDs,significant decrease of integrated PL intensity was observed as the annealing temperature increases.
Temperature Investigation of High Speed Milling High Manganese Steel
Authors: Xu Lan Ying , Wu Qiang , Li Yu Zhong
Published: January 2012

This paper analyzes the influence of cutting parameter to temperature in high speed milling high manganese steel process. By measuring tool-workpiece interface temperature and analyzing temperature distribution in the workpiece, the experimental results show that maximum temperature on tool surface increases with the increase of spindle speed, while the temperature of the total workpiece increases little in the cutting process. Temperature variation law of tool-workpiece interface and total workpiece are matched with the traditional processing mechanism well.
Improved Modeling and PID Control Algorithm for Three-Tank Liquid Level System
Authors: Yu Yan Xin , Song Xue
Published: January 2012

Three-tank liquid level system is a more typical non-linear and delay object with strong representation and background of industry. The part or whole of many objects can be abstracted into a mathematical model of three-tank liquid level system. Research on modeling and control of the system has important theoretical significance and practical value. This article describes how to use Simulink function to establish the mechanism of three-tank liquid level system model. And at the time, an improved PID control algorithm is proposed. The results show that it has more superior performance for three-tank liquid level system simulation control compared with the traditional PID control algorithm.
Design Method of the Flexible Smart Driving Mechanism
Authors: Jing Xu Zhen , Li Lin , Li Chao
Published: January 2012

Flexible smart driving mechanism is a combination of a smart actuator and flexible elements. It is an important part of the smart structure, mainly used in precise positioning and vibration control. In such application the displacement (or thrust) output and the natural frequency of the mechanism are two important design parameters. In the paper it is presented at the first that the two technical parameters (the output and the frequency) couldn’t be designed independently. Then based on static and dynamic analysis the design method of a general flexible smart driving mechanism is given. As an application, the design of a fast steering mirror, driven by a flexible smart driving mechanism is given. To verify the result, an experimental study has been done. The consistency of theoretical and experimental result is obtained.
Design and Implementation of Group2 only Slave Node Based on DeviceNet
Authors: Chen Zai Ping , Wang Qing
Published: January 2012

Referred to the protocol specification of DeviceNet, the hardware structure was set up by analysis of the physical layer and data link layer. Then it emphasized the software implementation procedure of the communication between master and slave from the view of application layer. With the software and hardware design method, a group 2 only communication node based on DeviceNet was designed through the platform of CAN controller SJA1000. Finally both IXXAT Corporation’s DNSDT protocol analysis software and RockWell’s master device were used to test the slave node. And the experimental data is detailed to verify that this slave node can fully meet the requirements specification of DeviceNet.
Development of Ultra Fast Cooling Variable Frequency Control System in Hot Strip Mill
Authors: Peng Liang Gui , Gao Yang , Zhao Xian Ming , Wu Di , Zhang Zhong Ping , Liu Yong , Sun Liang , Ren Li Xin
Published: January 2012

With advanced high-strength steels and high value-added steels development, it is urgent to innovative run out table cooling line in hot strip mill with flexible cooling capacity to meet products metallurgical requirements of the cooling rate after rolling. The way to increase the cooling capacity is to improve the effect of heat exchange of water forced convection with hot strip. Then to raise the spraying pressure to penetrate the residual water and break the vapor inside it is the most feasible method. So, how to control the variable frequency device providing variable spraying pressure is the object of this study. Firstly, cooling after rolling process requirement under ultra fast cooling was analyzed; secondly, characteristic curves of centrifugal pump and water supply pipeline were tested; then inverter timing control, interlock control, security control and so on were studied. Since online application of the variable frequency control system, the water supply system has been running stably and reliably