bluuebunny/crossref_metadata_2025 huggingface dataset:
Researches on Image Distortion Correction Method Based on Image Magnification
Authors: Jiang Xiao Ying , Xu Jian Liang , Fang Xiao Feng , Zhang Xin Xing , Peng Yin Ling , Fang Kun Li
Published: March 2013

A new method to correct a distorted image is proposed in this paper, which is based on the relationship between image magnification and distortion coefficient. First, the image magnification is solved. Then, the image distorted coefficient can be obtained with simple linear operation. Ultimately, experiments are carried out, and the correction results obtained by the collinear points-based method are compared with the method proposed in this paper. The results show that both provide good correction effects. At the same time, the accuracy of the new proposed method is higher. The proposed method takes the advantages of simple algorithm, few known conditions and fast computing speed. The new method has great significance in engineering metrology and complex condition.
Thermal-Elastic-Plastic Finite Element Analysis for Laser Welding Deformation of Thin Plate
Authors: Zeng Pan , Mei Le , Lei Li Ping
Published: March 2013

Thermal-Elastic-Plastic finite element analysis is introduced to study the deformation of laser welding of thin plate with consideration of varying material parameters. From aspects of numerical simulation and experiment, three welding cases are investigated: (1) the butt welding with constraint clamp, (2) the free bead welding, (3) the bead welding with constraint clamp. At last, the deformation configurations of welding plate under different constraint cases are characterized, and the behaviors of welding deformation are summarized.
Preparation of β-Phase Silicon Nitride Powders
Authors: Wang Jian Lei , Liu Jiu Ming , Ren Shu Xia
Published: March 2013

Silicon nitride powders high in β-phase content have been prepared by direct nitriding method. The silicon powders were first milled with 30%α-Si3N4 and 4% FeCl3 for 30 minutes. Then the mixture was heat-treated at 1400°C for 2 hours in the pure nitrogen gas. The phase and the microstructure of the as-prepared product were detected by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results showed that the product mainly consisted of β-Si3N4, whose content is more than 92%, and a little amount of α-Si3N4, and no silicon were detected within the detection limit.
Effect of Milling Parameters and Coolants on Surface Hardness of Tool Steel: SKD 11
Authors: Inkhamnoi Apichad , Jirapattarasilp Komson
Published: March 2013

The purpose of this research was to study milling parameters and coolant, which were affecting to surface hardness of tool steel: SKD 11. The experiment was design by conduction of 3 factors and 3 levels. The parameters consisted of three levels of cutting speed and three levels of feed rate. Furthermore, the experiment was done by coolant types. Soluble oil vegetable oil and dry-cutting were used for coolant types in milling. The face milling process was chosen to experiment. Cutting tool was used for this study was inserted carbide with coated polycrystalline vapor deposited (PVD) tools. The finding of main factors and interaction between factors affected to surface hardness was analyzed. Effect of cutting speed and feed rate on surface hardness after milling was discussed. In order to finding suitable of coolant type, effect of coolants on hardness of machined surface was analyzed and compared.
The Study of Surface Finish in Face Milling of Stainless Steel: AISI 304
Authors: Luejanda Songsak , Jirapattarasilp Komson
Published: March 2013

This research was to study the effect of face milling on the surface finish of stainless steel: AISI 304. The experiment was applied on three factors and were consisted of three levels of cutting speed, depth of cut and feed rate. The face milling process was chosen to experiment which used face milling cutter with insert carbide tool. The surface roughness average (Ra) was applied to indicating for surface finish. The experiment results were analyzed by ANOVA. The main factors and factors interaction that affected to surface finish were investigated. Effect of cutting speed, feed rate and depth of cut on surface finish of stainless steel: AISI 304 was discussed.
Exploitation and Application of the Middle Thickness Model in Cold Tandem Mill
Authors: Zhou Lian Lian , Ma Xu Chuang , Wang Kai , Si Hong Xin
Published: March 2013

In the foundation of generous field test and theoretical research, we presented a calculated model of middle thickness in cold tandem mill by combining applied mathematical theory and production technology and taking advantage of Taylor series expansion, matrix analysis, Newton iteration method and other mathematical methods. This model was used for setting original middle thickness on 1220 cold tandem mill in some plant. After field usage, the result was fine and correlative precision was over 90%. It completely satisfies required precision in project and has the value to be further popularized and applied.
Consumer Lifestyles and Preferences for Sofa Leather
Authors: Chen Tien Li , Chou Ya Kuan , Hsu Ariel
Published: March 2013

The purpose of this study was to investigate consumer lifestyles and preferences for sofa leather through Literature Review, Focus Group Interview and Experts Interview. The lifestyle questionnaire was created to research into the subjects’ preferences in accordance with 4 kinds of leather types, 5 kinds of grains, and 5 kinds of colors. After the authors’ statistical analysis of 206 copies of the effective questionnaires, the research results among every group showed that the favorites were Aniline Leather of leather types, smaller particles of grains, and high contrast colors, such as white and black. Further, the consumer groups against sofa leather could be divided into 5 difference ones. The taste of the elder subjects in "Appreciate Life" was similar to the overall preferences ; however, the taste of the junior subjects in "Single Learing" and "Youthful & Carefree" was unique and different from the overall preferences.
Investigation on the Microstructures and Tensile Properties of TA15 Titanium Alloy Thick-Wall Parts Formed by Laser Rapid Forming Process
Authors: Xi Ming Zhe
Published: March 2013

TA15 titanium alloy thick-wall parts have been deposited by Laser rapid forming (LRF) process. In this paper, a new overlap method between two adjacent laser tracks has been used to deposit the thick-wall titanium part. Results showed that the LRFed thick-wall titanium part was good in shape by using the new overlap method. The microstructure of the LRFed titanium alloy primarily consists of columnar prior-beta grain, which is perpendicular to the substrate resulting from directionally solidification. It also could be observed that the size of alpha phase increased with increasing laser power and decreasing scanning velocity. Tensile properties of LRFed titanium was slightly lower than that of the wrought annealed TA15 titanium alloy, after the heat-treatment of 940°C/1h/AC, the heat-treated titanium alloy showed good tensile properties which were equivalent to that of the wrought annealed TA15 titanium alloy.
Methods of Evaluation on Manufacturing Information Quality
Authors: Lu Xu Zhi , Zou Chang Ping
Published: March 2013

Information quality (IQ) is one of the basic factors limiting the development of enterprises. And now it becomes a determinable factor. It’s urgent to improve IQ, especially methods of IQ evaluation. After comparing the views of the scholars at home and abroad, a method of IQ evaluation was developed. The evaluation of information quality includes two parts, data quality and information quality evaluation.Subjective and objective evaluation of data quality were listed, including three basic forms,simple ratio, min or max operation and weighed average. It also introduces developing data quality measurement in engineering practice.The method of IQ evaluation was studied ,and the basis of IQ evaluation was established. It reflected the status of organizational IQ using the data collected by the investigation questionnaires. These analyses are applied to analyze the gap between an organization and the best practice. The results of these techniques can be applied to assurance of IQ improvement and improvement of data quality. It’s also an effective way to lower information costs.
Recent Progresses on Some Coke Resistant Ni-Based Catalysts for Carbon Dioxide Reforming of Methane
Authors: Jiang Hong Tao , Hua Wei , Li Hui Quan , Dai Yong Chuan
Published: March 2013

Carbon dioxide reforming of methane (CDR) can convert two greenhouse gases, methane can carbon dioxide, into useful syngas. Nickel-based catalysts have been extensively investigated due to their high activity and low cost. However, coke formation over Ni catalyst is serious and leads to rapid deactivation of the catalyst. Coke resistant Ni catalyst for CDR reaction is desired. In this paper, recent progresses in the design and preparation of coke resistant Ni catalysts supported on solid solutions, zeolite, perovskites and perovskite type oxides, hexaaluminates or substituted hexaaluminates, pyrochlore, montmorillonites, and hydrotalcites for CDR were summarized. The progresses in the use of promoters, in the effect of supporting materials and in the preparation methods have been discussed. The future development of coke resistant Ni catalysts for these processes is briefly addressed.
Effect of Silane Functionalization on the Properties of Iron Oxide Nanoparticles/UP Toughened Epoxy Nanocomposites
Authors: Jaisingh S. Julyes , Selvam V. , Kumar M. Suresh Chandra , Thyagarajan K.
Published: March 2013

Effect of iron oxide nanoparticles (Fe2O3) and siliconized iron oxide nanoparticles (Si- Fe2O3) on the properties of Unsaturated Polyester (UP) toughened epoxy nanocomposites is investigated in this work. UP toughened based epoxy nanocomposites reinforced with silane functionalized Fe2O3and unmodified Fe2O3nanoparticles were prepared. The silane group functionalization on Fe2O3nanoparticles was confirmed by FT-IR spectroscopy. The impact strength and hardness were studied as per ASTM. The impact strength of the epoxy matrix increased by the reinforcement of Si-Fe2O3nanoparticles which reveals the formation of nanocomposites. Morphology of Si-Fe2O3nanoparticles reinforced UP toughened epoxy nanocomposites was investigated by Scanning Electron Microscope.
Synthesis and Semiconductor Characteristics of Poly[(2-methoxy,5-octoxy)1,4- Phenylenevinylene-Carbon Nanotube Composites
Authors: Ding Wen , Yun Feng , Song Zhong Xiao , Si Jin Hai , Liu Chun Liang , Zhu Jiang , Hou Xun
Published: March 2013

poly[(2-methoxy,5-octoxy)1,4- phenylenevinylene-carbon nanotube composites (MOPPV-CNTs) were synthetized by In-situ polymerization in the paper. The molecular structure and surface morphology of the nanocomposites were characterized by the TEM. The TEM results showed that the MOPPV coated on the CNTs forming Core-shell nanowires structure composite. The wavelength of UV-absorption spectra of the composites exhibited a blue shift caused by the functionalized MWCNTs. the energy gap of the composites were increased. The band structures of the composite were determined by using cyclic voltammetry, the result shown that the HOMO energy and the LUMO energy increased with the concentration of CNTS. The increase of LUMO energy would benefit for balance of the carries injection when the composites used in the optoelectronic devices.
Optimum Dosage of Deformed Steel Fibres in Fibrous Concrete Beams under Predominant Shear
Authors: Chalioris Constantin E.
Published: March 2013

This study presents an analytical approach to evaluate an optimum content of deformed steel fibres in shear-dominated fibrous concrete beams in order strength and ductility requirements to be satisfied. The proposed methodology is based on the calculations of the flexural and shear capacities and to the concept that a pure flexural response should be achieved. The goal of this method is to evaluate the minimum required value of the fibre factor, F, which expresses the effect of the volume fraction and the geometrical characteristics of the used steel fibres. The calculation of F is achieved using a cubic formula derived from the described procedure. Fibres can be used either as the only shear reinforcement or in combination with stirrups. Test results from 47 beams of the literature are used to verify and to illustrate the application of the proposed approach. Comparisons between experimental and predicted results showed a very good agreement. Design charts have also been plotted by the implementation of this methodology as an analysis tool.
The Microwave Synthesis and Photocatalytic Activity of ZnO/TiO2 Nanocomposites
Authors: Zhou Gang Cheng , Zhu Quan Xin , Xiong Wan Qing , Lei Jian , Ye Wen Xiang , Liao Xue Hong
Published: March 2013

ZnO/TiO2 nanocomposites were prepared by mixing of ultrasonic vibration and sintering at 500°C for 2 h initial nano-ZnO and nano-TiO2 which were synthesized by a microwave irradiation heating technique from an aqueous solution of Zn(Ac)2•2H2O, Ti(SO4)2, respectively. The samples were characterized by the techniques of X-ray diffraction (XRD) and transmission electron microscopy (TEM). And we have also carried on research to the photocatalytic activity of the as-prepared ZnO/TiO2 nanocomposites by photo-degrading methyl orange. The result indicates that the as-prepared sample is a good photocatalyst. When m (TiO2) /m (ZnO) ratio was equal to 4, the photocatalytic activity of the nanocomposites is best. The result shows that the degradation ratio of the methyl orange (2mg/L) has reached 93% within 80 min
Study of the Electrical Properties of Monolayer MoS2 Semiconductor
Authors: Ma Xi Ying
Published: March 2013

We present the study of the electrical properties of monolayer MoS2 in terms of semiconductor theory. The free electron and hole concentrations formulas in two-dimensional (2D) semiconductors have been developed based on three-dimensional (3D) semiconductors theory, and derived the intrinsic carrier concentration equation of 2D system. Using these equations, we simulated the intrinsic carrier concentration in monolayer MoS2 with temperature. The intrinsic carrier density in monolayer MoS2 increases exponentially with temperature, but it lows a few orders of magnitude than that of 3D semiconductor. It means that monolayer MoS2 based devices can operated at very high temperatures. Accordingly, the conductivity and resistivity were simulated for 2D MoS2, the former increases exponentially while the latter decreases with temperature or carrier concentration.
Research and Development of Self-Lubricating Bearing Materials
Authors: Wang Xiu Ling , Yang Li Ying , Wang Shou Ren
Published: March 2013

It is significant and necessary to carry out the research and development of self-lubricating bearing. The current study of metal matrix self-lubricating bearing materials is summarized. A new type of high temperature self-lubricating Ti-Al alloy bearing materials is proposed. It is light, anti-friction, anti-corrosion and high temperature resistance (600 °C). The future trend is introduced in the end of this paper.
Fabrication and Characterization of Ag@PS Composite Nanospheres
Authors: Zhou Ya Wei , Zhao Xiao Peng , Yang Chao Shun , An Guo Fei
Published: March 2013

We report a facile method for the fabrication of polystyrene/silver composite nanoparticles with core-shell nanostructures. First, polystyrene (PS) nanoparticles with carboxyl acid groups on their surfaces were prepared via the dispersion polymerisation of styrene in water with the assistance of acrylic acid. Second, with the addition of [Ag(NH3)2]+ to the PS dispersion, [Ag(NH3)2]+ was absorbed onto the surfaces of the modified PS nanoparticles. Finally, the [Ag(NH3)2]+ complex ions were reduced to Ag to form the PS/Ag nanocomposites upon heating. The resulting PS/Ag composite nanoparticles were characterized via scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, and dynamic light scattering.
The Response of Woven CFRP under Static and Fatigue Loading
Authors: Wicaksono Satrio , Chai Gin Boay
Published: March 2013

The fundamental mechanical responses of woven CFRP (carbon fibre-reinforced plastics) test coupons subjected to static and fatigue loading were extensively carried out and results are presented in this paper. These results were then used in the development of a generalized cumulative damage model to predict static and fatigue response of a woven CFRP beam structure with an I-shaped cross section. The damage model was then applied to the beam under four-point bending to simulate the progression of failure. The results of the static response, fatigue response, fatigue life and stiffness decay predictions were compared with the experimental data. Good correlations between predicted and experimental results provide the necessary confidence in using the proposed approach.
Study of Stress and Deformation of Composite Geo-Membrane High Earth-Rock Dam
Authors: Jiang Hai Bo
Published: March 2013

Stress and deformation properties and hydraulic fracturing are key problems to designing and constructing of high earth-rock dam. In order to research characteristics of the stress and deformation properties of composite geo-membrane high earth-rock dam, the non-linear FEM is applied to analyze the stress and deformation of a composite geo-membrane rock-fill dam with Duncan-Chang E-B Model, emphasis on the deformation and stress behaviors of dam body, with a composite geo-membrane high earth-rock dam as an example, to estimate the whether or not developing hydraulic fracturing. The calculation results show that the deformation and stress behaviors of dam body and composite geo-membrane are in the normal state, composite geo-membrane has an evident effect on reduce embankment seepage, decrease pore water pressures and saturation line of embankment dam, to prevent dam produced hydraulic fracturing.
Synthesis and Forming Behavior of In Situ AA 7075 - TiC Composites
Authors: Anandakrishnan V. , Baskaran S. , Sathish S.
Published: March 2013

The forming behavior of a particulate reinforced AA 7075-TiC composite produced by in-situ stir casting process was investigated with cold upsetting test using graphite as lubricant. The prepared composites containing 0%, 4% and 8% of TiC reinforcement was completely investigated under tri-axial stress state condition. The various stress parameters were evaluated for all the above said composites and its variation with respect to axial strain was plotted, studied and discussed. Microstructural characterization of the composites was also done to study the distribution of the reinforcement in the metal matrix composite.
Tensile Characteristics of Coconut Fibers Reinforced Mortar Composites
Authors: Lumingkewas Riana H. , Purnomo Heru , Ausias Gilles , Priadi Dedi , Lecompte Thibaut , Perrot Arnaud
Published: March 2013

Natural fibers such as coconut fibers are numerous in Indonesia. The tensile strength of coconut fibers produced in this country is among the highest of natural fibers ones. This paper is to determine the tensile strength of coconut fibers with or without special treatment (water washing dry) and assessment the ability of coconut fiber for reinforcement in mortar composites. Experimental observations on coconut fibers and mortars carried out. There were tensile tests and scanning electron microscopy (SEM) providing microstructural properties of coconut fibers. The results showed that the coconut fibers treatment increases tensile strength and provides higher failure strain values. It showed that coconut fibers largely improved tensile strength behavior of mortar composites. To a conclusion, the coconut fibers are able to be used as reinforcement for ductile mortar composites.
Enzyme-Linked Immunosorbent Assay for Streptomycin in Animal Feeds
Authors: Zhang Hui Ying , Wang Jun Ping
Published: March 2013

Polyclonal antibody against streptomycin was prepared by using a streptomycin–bovine serum albumin conjugate for the immunization of rabbits. Using this antibody, we developed quantitative assays for streptomycin by means of an indirect competitive enzyme-linked immunosorbent assay (icELISA). Fifty percent inhibition concentration (IC50) for the antibody was 3.6 ng/ml. The detection limit was 0.4 ng/ml. The average of recoveries for all samples was 86.14% and the coefficients of variation of intra- and inter-assays were below 18%. The detection limit using the kit was 15 ng/ml in animal feeds.
Determination of Material Parameters of Concrete for Non-Linear Modeling
Authors: Zimmermann Thomas , Strauss Alfred , Haider Katharina
Published: March 2013

Within this paper an experimental investigation on basic material parameters as well as fracture mechanical properties for different concrete types is presented. In total four different concrete types were investigated. The results of this investigation serve as a basis for further numerical assessment with respect to (a) define suitable stochastic models for the material parameters and (b) to carry out non-linear finite element analysis incorporating the fracture process as well as crack propagation.
Effect of Boric Acid Mixture as Solid Lubricant towards Machining Processes
Authors: Sulaiman S. , Ariffin M.K.A.M. , Hong T.S. , Mustafa N.A.
Published: March 2013

Milling is widely used metal removal process in manufacturing industry that involves generation of high cutting forces and temperature. Lubricants become important to reduce the cutting force and temperature for better machining processes and performances. Conventional cutting fluid has some limitations. The applications of conventional cutting fluid create some techno-environmental problems like environmental pollution, biological problems to operators and water pollution. Application of solid lubricant in milling has proved to be a feasible alternative to the conventional cutting fluids. The present work investigates the effect of boric acid as solid lubricant towards machining performances such as tool wear and surface roughness. The results indicate that boric acid can improve the cutting processes and performance compared to conventional cutting fluid.
A Thermo-Dynamical Constitutive Model Based on Kinetic Approach for Shape Memory Materials
Authors: Pellegrini Nicola
Published: March 2013

The technological application of nickel–titanium shape memory alloys (SMA) requires a constitutive model that can be easily implemented into numerical methods. For these reasons, macroscopic constitutive models have gained ground in SMA designs. A new model is developed that encompasses all the characteristics of these materials over the whole range of transformation temperatures, several macro-mechanical properties and evolution of martensite fraction. A finite element scheme is proposed to solve a semi-inverse dynamic problem. For a prescribed temperature range and external stress-boundary conditions, the outcomes are the possibility to identify the required electrical current density.
Experimental Study on the Interaction between Femtosecond Laser and Energetic Materials
Authors: Chen Hua , Tang Wen Hui , Ran Xian Wen , Xu Bin Bin , Xu Zhi Hong
Published: March 2013

Unlike the long pulse irradiation that is described by a single temperature diffusion model, the femtosecond laser energy transport is considered two separate temperatures for electron and lattice of material, which makes femtosecond laser to be a useful tool for demilitarization, surveillance and the creation of new ordnance components. For a better use of the femtosecond laser, the interaction between femtosecond laser and energetic materials should be well studied. In this paper, the experiments of femtosecond laser radiation matchstick head are designed to be a preliminary study on the interaction between femtosecond laser and energetic materials. The ablation phenomenon is clearly observed, and the ignition time of matchstick head for 700nm, 850nm, 950nm wavelengths femtosecond laser with different power densities are obtained by a high speed camera. It is found that 700nm wavelength cost least time to ignite the matchstick, and when the laser power density increases, the difference among three wavelengths becomes smaller. When the power density is about 7500W/cm2, the lasers are all powerful enough to instantly ignite the matchstick. The results show that with the control of power density and radiation time, the femtosecond is a useful tool to incise and study energetic materials.
Analysis and Test on Indoor Thermal Environment of Timber Dwellings in Shangri-La
Authors: Li Li Ping , Wang He , Fan Shuai
Published: March 2013

Field tests for indoor thermal environment of Tibetan-style timber dwellings in Shangri-La were carried out， from the perspective of physical environment of buildings, and more specifically, the indoor temperature of Tibetan-style timber dwellings as well as the surface temperature of building envelope were tested and comparatively analyzed. The test results show the current situations and features of indoor temperature changes of Tibetan-style timber dwellings, which may provide a basis for improving the thermal environment of Tibetan-style dwellings.
Effect of Surface Treatment of Hemp Fibers on the Thermal Stability of the Hemp-PLA (Poly lactic acid) Composites
Authors: Lu Na , Oza Shubhashini
Published: March 2013

This study investigates the effect of alkali treatment on the thermal degradation and thermal stability of hemp, and hemp reinforced Poly Lactic Acid (PLA) composites. The results indicate that thermal stability of the composites decreases with increase in fiber loading due to the lower thermal stability of hemp compared to PLA matrix. The alkali treated composites have shown higher thermal stability in comparison to untreated hemp-PLA composites due to the increased fiber-matrix bonding.
The Application and Dynamic Temperature Test Methods of Micro Thin Film Resistor Sensor
Authors: Jia Dang Ping , Yuan Zhuo
Published: March 2013

Based on the rapid response advantages and test problems of the thin film resistor, the analysis and research on two aspects are focused: First, the thin film resistor is used as a current sensor which is applied in high-voltage DC transformer. The structure and performance of the thin film resistor are analyzed and simulated. Second, the dynamic characteristics of the thin film resistor are tested by indirect temperature measurement method. The problem of current rapid temperature measurement is solved. The dynamic temperature characteristic curve of the thin film resistor is analyzed by using multi-exponential spectral analysis method. The thermal characteristics of the fine structure for the thin film resistor are described by spectral characteristics. Moreover, more test information of the fine structure from comprehensive test results is separated to guide the improvement of the thin film resistor structure.
The Characteristics of Flow Boiling Heat Transfer and Pressure Drop in Small Tube with the Pipe Sections Having Increased Diameters
Authors: Wen Mao Yu , Jang Kang Jang
Published: March 2013

This study presents an experimental investigation of the characteristics of the flow boiling heat transfer and pressure drop for refrigerant of R134a flowing in a small - diameter evaporative tube with the pipe sections having increased diameters. The experiments were performed at the saturation temperature of 5°C , heat flux of 5.12 ~ 10.96 ( KW/m2), mass flux of 200~600 ( kg/m2s), different length-to-diameter ratios of the test tubes and refrigerant quality of 0.07~0.78, and based on the same surface area of heat transfer. The enhancement performance ratios, θa/s for the tubes with the pipe sections having increased diameters relative to the smooth tube are higher than 1 (about 1.01~1.10). It means that the augmented tubes show the better overall performance than the smooth tube under study.
Strength Analysis for Lifting Mechanism of Dump Truck Based on Virtual Prototype and Finite Element Technology
Authors: Zhu Long Long , Liu Da Wei , Ge Xu Kun , Fan Wei
Published: March 2013

In order to study the strength analysis of dump truck with a T-type lifting mechanism, a detailed multi-body dynamic model of a dump truck was established by using SIMPACK software. With this rigid-flexible coupling model, which includes front suspension, balanced rear suspension, carriage, lifting mechanism, tyre model and so on. Dynamical analysis was carried on the dump truck, the variation of application force of lifting mechanism with lifting angle was obtained. Finite element model of a dump truck was established by using Hypermesh software. Strength Analysis was studied on the dump truck. This study will provide scientific reference for the structural design and improvements of lifting mechanism.
Memetic Algorithm Approach to Two-Stage Hybrid Flow Shop Scheduling Problem with Identical Parallel Machines
Authors: Kaweegitbundit Parinya
Published: March 2013

This paper considers two stage hybrid flow shop (HFS) with identical parallel machine. The objectives is to determine makespan have been minimized. This paper presented memetic algorithm procedure to solve two stage HFS problems. To evaluated performance of propose method, the results have been compared with two meta-heuristic, genetic algorithm, simulated annealing. The experimental results show that propose method is more effective and efficient than genetic algorithm and simulated annealing to solve two stage HFS scheduling problems.
Research on the Inheritance of Inlay Silver Lacquer Furniture
Authors: Wang Xuan , Zhang Zhong Feng
Published: March 2013

Inlay silver lacquer Furniture is the concrete representation of China's outstanding traditional culture, which has a good enlightenment for the modern furniture design. Firstly, it introduced the history of inlay silver lacquer, and then it analyzed in detail the artistic features of inlay silver lacquer furniture. Furthermore, it put forward the effective method—"high-ranking customization" and constructed the framework of "high-ranking customization" for inlay silver furniture to inherit and innovate traditional inlay silver furniture, The application of which can satisfy the personalized needs of modern people for furniture.
Research on the Restaurant Space Humanized Design
Authors: Wang Xuan , Zhang Zhong Feng
Published: March 2013

Based on the concept of humanized design, it discussed the restaurant space design. Firstly, it introduced the general situation of humanized design of the Restaurant space, and then it discussed how to achieve the humanized design of restaurant space from the aspects of reasonable layout space, the ample use of light color design, environment atmosphere created by furnishings, detail designs for vulnerable group and the rational use of environmental protection materials. The research will provide the scientific guidance for creating the humanized dining environment which can meet the psychological, physiological and emotional needs of human.
Research on the Forms and Emotion Expressions of Bamboo Lamps
Authors: Gao Jing Shu , Zhang Zhong Feng
Published: March 2013

With the deep connotation of Chinese bamboo cultural, natural nature and fresh green characteristics, bamboo lamps are becoming increasingly popular. In this paper, based on the forms of bamboo lamps, it analyzed the different visual experiences and psychological experiences which were created by different forms of bamboo lights. On this basis, it explored the emotional expression semantics of bamboo lamps’ forms. The obtained achievements might be applied in lamp design to meet different people’s emotional appeal.
Preparation of AZO Thin Films by Level Sedimentation and its Optical and Electrical Properties
Authors: Gao De Wen , Yin Tian Lan , Wu Guang Ming , Xing Guang Jian , Ding Yao , Zhou Yang
Published: March 2013

AZO precursor solution was prepared with dihydrate zinc acetate as raw materials, ethylene glycol monomethyl ether and ethanol as solvent, ethanolamine as a stabilizer, hexahydrate aluminum chloride as the dopant. The AZO thin films were prepared on glass substrates by using homemade liquid level settlement device. The orthogonal design of the experimental conditions was made to optimize the conditions of this method for the preparation of AZO thin films. The films were analyzed by XRD, UV-Vis, AFM, four-probe, step profiler and other methods. The results show that the optimal conditions for preparation of AZO thin films were as follows: the sol concentration was 0.5mol/L, the Al3+/Zn2+ concentration ratio was 4 at%, the drying temperature was 100 °C for 10 minutes, the pretreatment temperature was 450 °C, the coating layers were 20, the level settling velocity was 5 cm/min, the pretreatment time was 10 minutes, the annealing temperature was 550 °C for 2 h. The average transmittance in visible light and the sheet resistance of the AZO thin films were 88% and 536Ω/□, respectively.
A Method with a Statistical Approach for the Evaluation of Tolerance Chains
Authors: Ambu Rita
Published: March 2013

In this paper a procedure based on a statistical approach to manufacturing for the analysis of tolerance chains is reported. In particular, the proposed approach can be summarised into two main steps. First, each single technological operation (for example, the drilling of a hole) is simulated by extracting, from a statistical distribution typical of the machine tool, the parameters characteristic of the manufacturing procedure. Then, a simulation is performed, to verify if the real features of the part can simultaneously fit the virtual gage. This method of acceptance/rejection of a part is according to the ISO/ASME standards and is representative of the real functional requirements of the part.
An Application of Multiresolution Analysis and Lifting Scheme in FEM
Authors: He Yu Min , Zhang Xiao Long , Dong Ya Bin , Gao Pan , Wei Zhong Bin
Published: March 2013

Based on multiresolution analysis and lifting scheme, and an adaptive finite element method（FEM） is developed. The coarse solution can be obtained in the approximation element. The coarse solution can be refined via adding details hierarchically and locally, then sharp transitions may be captured. The numerical example has verified the effectiveness of the proposed method.
An H-Shaped Dual-Band Microstrip Patch Antenna
Authors: Yan Dong , Huang Li , Wang Ping , Liu Yu
Published: March 2013

An H-shaped dual-band microstrip patch antenna is presented which supports two resonance frequencies at 2.5 GHz and 5.01 GHz. Firstly, the design method of antenna size is proposed. Then this antenna is simulated and optimized in High Frequency Structure Simulator (HFSS). Finally, the parameters of this antenna are obtained. Impedance bandwidth for center frequencies of 2.5 GHz and 5.01 GHz are 0.1 GHz (2.45 GHz~2.55 GHz) and 0.14 GHz (4.95 GHz~5.09 GHz), respectively.
Carboxymethylation Fiber of Dissolved Air Flotation Rejects and its Influences on Paper Properties
Authors: Wang Yang Hong , Song Xian Liang , Qian Hua
Published: March 2013

Fibers of dissolved air flotation rejects were been carboxymethylated to make dry strengthening agent. The effects of carboxymethylated time on carboxyl content, water retention value and physical properties of paper sheets were discussed. The effects of pH, dose of additive agent and additive aluminum sulfate on paper properties were discussed. The result show that carboxyl content and water retention values increased with the increasing of carboxymethylated time according to the research. IR analysis indicates that carboxymethyl has been connected to the surface of fibers. SEM micrographs shown that fibers were intergraded more closely benefit from the addition of dry strengthening agent. Tensile index, burst index and folding endurance respectively increased by 90.1% 101.8% and 833.3% on the condition: the additive agent amount 3%, pH 5, additive aluminum sulfate 0.5% of original pulp. Tensile index, burst index and folding endurance respectively increased by 74.0%, 87.8% and 877.8% when the carboxymethylated time was 110min for recycled pulp. This paper can be used as the theoretical basis for reusing of fiber of dissolved air flotation rejects.
Research on Progressive Die Design for Asymmetric U-Shaped Contactor
Authors: Zhao Zhan Feng , Yang Li Xin
Published: March 2013

The pressing technologies and the forming difficulties of the asymmetric U-shaped contactor were analyzed. The strip layout was designed for progressive pressing from piercing to bending. The die structure was designed in three plates mode, guiding with ball cage bush and pillar mechanism. The multiple steps bending stations and sliding inclined wedge mechanism were designed to implement the critical forming function. The volume production proved that this toolset’s structure was robust at high stamping speed and the products meet the high quality criteria. A valuable universal design rule was concluded for similar product’s toolset design.
Coupled Numerical Simulation Study on Electromagnetic Field, Flow Field and Heat Transfer in ø210mm Round Billet Mold with M-EMS
Authors: Chen Wei , Wang Bao Xiang , Zheng Na , Chen Ying , Feng Yong Ping
Published: March 2013

aking the ∅210mm round billet M-EMS as study subject, a mathematical model coupling electromagnetic field, flow field and temperature field is established by use of Finite Element Analysis Software ANSYS. The distribution law of magnetic induction and electromagnetic force is investigated in mold; the effects of current intensity and frequency on magnetic induction, electromagnetic force, flow and temperature field is studied. The results show that: the values of magnetic induction and electromagnetic force reach its maximum near the edge of billet and became smaller towards the center; in the mold with EMS, the rotary flow is generated, and the flow pattern are upper recirculation zone, rotary zone and down recirculation zone, the location of hot area is moved up compared with the condition without EMS; in the considered parameters range, electromagnetic force and velocity of molten steel increase with the rise of current intensity and frequency.
Design of a Novel Calcium Sulfate-Based Lightweight Composite: Towards Excellent Thermal Properties
Authors: Yu Q.L. , Brouwers H.J.H.
Published: March 2013

This article addresses the design of a self-compacting gypsum-based lightweight composite (SGLC). A β-hemihydrate is used as binder and lightweight aggregate (LWA, 0-2 mm in different size ranges) is used as aggregate into this composite. The mix of the new composite is designed based on the particle size distribution grading theory applying the modified Andreasen and Andersen (A&A) grading line to obtain an optimal packing of all the used solid materials. The thermal behavior of the new developed composite is investigated, from its thermal physical properties and fire behavior. The study demonstrates that this new composite has significant improvement compared to those of traditional gypsum plasterboard.
Preparation and Characterisation of Electrochromic Fabrics Based on Polyaniline
Authors: Zhang Qiu Ping , Xin Bin Jie , Lin Lan Tian
Published: March 2013

A new method for the development of Electrochromic fabric (ECF) based on polyaniline, instead of traditional Electrochromic device (ECD), is presented in this paper. The transparent conductive layer of ECF is replaced by the conductive fabric; copper coated fabric is used as cathode materials in our experiments. Scanning electron microscopy (SEM), Ultraviolet spectrum analysis, Circulation current-voltage and Electrochemical spectrum have been used to characterize the properties of ECD and assembled ECF. Our experimental results show that the electrochromic properties of the ECD and ECF assembled in our experiments can be improved obviously.
The Application of Internet of Things on Medical System
Authors: Teng Qi , Lu Dong Xin
Published: March 2013

With the advent of internet of things (IOT), it breaks the tradition thought which separate the physical devices and IT infrastructure. It is the third wave of information industry in the world after computer, internet and mobile. This article introduces the features and key technologies of IOT, and explores the features and applications of IOT on medical system. Pointed out the technologies of IOT will bring great changes to medical applications.
Design of Mobile Remote ECG Monitoring System Based on 3G
Authors: Peng Jian Ming , Lu Dong Xin , Zhou Cong , Li Wei , Qin Yuan Bo
Published: March 2013

This paper presents a mobile remote ECG monitoring system based on 3G. The system combines 3G wireless communication technology and traditional Holter monitoring technology to meet the development of monitoring technology and equipment. Without affecting the patients’ normal life, system guardian real-time monitoring of patients ECG parameters and alarm to abnormal heart activity of patients in a timely manner. What’s more, with the help of 3G, system can upload the abnormal ECG data to the analysis of monitoring platform for doctors, who provided the correct diagnostic and monitoring guidance and feedback to patients.
Evaluation of Different Monitoring Methods of Laser Additive Manufacturing of Stainless Steel
Authors: Hirvimäki Marika , Manninen Matti , Lehti Antti , Happonen Ari , Salminen Antti , Nyrhilä Olli
Published: March 2013

Different monitoring methods for the laser additive manufacturing process were studied in this study. Possibilities and downfalls of three different methods were compared to each other to define their applicability in future on-line and adaptive monitoring use in LAM processes. The material used on all the LAM process tests was EOS StainlessSteel PH1 in fine powder form. In this study, e.g. parameters like scanning speed, layer thickness and hatch space were tested. Based on the results of this study, the pyrometer seems to be more easily adaptable to continuous monitoring than the spectrometer or systems based on active illumination imaging system. It seems that the pyrometer is a promising method for quality control. The ability to control quality through on-line measurements can be further utilized in future e.g. for on-line quality control and dynamic process control, i.e. the ability to change and correct parameters on the fly.
The Recognition Research of Birds' Nest on Transmission Line Towers
Authors: Sun Feng Jie , Wang Zhen , Fan Jie Qing
Published: March 2013

Because the birds’ behavior of building nests may influence the safe operation of transmission line tower, this paper puts forward a new kind of recognition scheme basing on digital image processing. After a careful analysis of different characteristics of the images with bird's nest and without nest, it is proposed that a large area connected region recognition algorithm. Firstly this algorithm transforms digital images into gray level. Secondly in order to reduce the influence of background on targets, iterative global threshold method is used. Then block statistics reduce the complexity of calculation and the potential impact of individual area pixel point on whole target recognition. Finally the judgment is finished by image geometric center. The scheme is simple to be used and calculation quantity is small, which is very suitable for transmission line monitoring and early warning.
On Cloud Sharing Model of Digital Educational Resources in Hebei Universities
Authors: Huang Lin Na , Liu Feng Hua , Tang Li Fang
Published: March 2013

With the coming of the era of cloud computing, applications of cloud computing must have a profound impact on the field of education and promote the development of education and teaching. How to apply cloud computing in education is becoming a hot research. Under this context, the services provided with cloud computing and the establishment of Digital Education Resource Cloud Sharing Mode can break through the bottleneck of digital education resource sharing in universities, and improve the efficiency of digital educational resource sharing, which is conducive to promote educational equity and help to reduce sharing cost in order to realize the effect optimization of digital education resource sharing. This paper analyzes the construction of digital education resource in Hebei universities and designs the cloud-based sharing model.
3G Car-Based Networking Technology and its Application
Authors: Tang Li Fang , Huang Lin Na
Published: March 2013

The main urban transport as well as security issues, introduced the current domestic and foreign cars. Networking Research, the car networking bases for implementation, application and development trend.
Current Situation and Development Trends on Key Technology of IOV (Internet of Vehicles)
Authors: Tang Li Fang , Wang Chuan Jin
Published: March 2013

This paper firstly describes the basic concepts and industry chains of IOV briefly, then analyses its current situation summarily, and finally looks forward development trends of its key technology in future.
Applications of Cloud Calculation in the Intelligence Transportation System
Authors: Liu Guo Xiang
Published: March 2013

Intelligence transportation system is a new kind of information, intelligence and socialization modern transportation system. Cloud computing is a shared data infrastructure method emerged in recent years, which is able to combine the large procedure pool and the data pool to provide a variety of IT application services. The intelligent transportation systems using cloud calculation technology, on the one hand, can integrate multiple heterogeneous, distributed data sources; on the other hand it is formed by multiple server clusters, providing the basic framework of storage, transmission, processing, integration of massive data. In this paper, by studying the applications of cloud calculation technology in the field of intelligence transportation, the author proposed the ITS platform based on cloud calculation.
Constrained Epistemic Extension on Agent Knowledge Acquisition
Authors: Hong Zhi Ling , Wu Mei Hong
Published: March 2013

In multi-agent systems, a number of autonomous pieces of software (the agents) interact in order to execute complex tasks. This paper proposes a logic framework portrays agent’s communication protocols in the multi-agent systems and a dynamic negotiation model based on epistemic default logic was introduced in this framework. In this paper, we use the constrained default rules to investigate the extension of dynamic epistemic logic, and constrained epistemic extension construct an efficient negotiation strategy via constrained epistemic default reasoning, which guarantees the important natures of extension existence and semi-monotonicity. We also specify characteristic of the dynamic updating when agent learn new knowledge in the logical framework. The method for the information sharing signify the usefulness of logical tools carried out in the dynamic process of information acquisition, and the distributed intelligent information processing show the effectiveness of reasoning default logic in the dynamic epistemic logic theory.
Sliding Mode Control for Singular Systems with Variable Switched Surface
Authors: Xie Jing , Gao Cun Chen , Zhang Chong
Published: March 2013

The problem of minimum time sliding mode variable structure control is researched for a singular continuous linear system on variable reaching surfaces. Firstly, a sufficient condition for asymptotic stability of two switching subsystems’ sliding movements is deduced on integral-type sliding surfaces. Secondly, a new-type reaching law is designed, so that reaching surfaces of subsystems’ state trajectories tend to sliding surfaces at certain rates and finally coincide with them. Thirdly, an estimated value of the minimum time is calculated as less as possible for reaching surfaces to sliding surfaces. And a switching sequence is designed to make two subsystems reach hierarchically to sliding mode and then converge in a neighborhood of the origin. Finally, the effectiveness and the feasibility are illustrated for the proposed method by a simulation example.