bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Carrying out Kanban Production System in a Engine Assembly Workshop
Authors: Xiao Yan , Li Yun Yun , Jia Qiu Hong
Published: January 2012

Combined with the field survey data, this paper firstly analyzed the production status of an engine assembly plant, identified the problems reduced production efficiency; and then proposed re-introduction of Kanban production system to help enterprises overcome the present impasse. This paper focused on describing the import plan, the overall design and executing conditions of Kanban production system，which to be a reference example for other enterprises who want to adopt Kanban production system
An Anti-Jamming Algorithm of SDM Based on the Cyclostationarity of the Signals
Authors: Shang Xiao Hui , Shen Yue Hong , Ren Xi Shun , Wang Jian
Published: January 2012

WSDM, as a new way of wireless channel multiplexing, could be widely used in communication anti-jamming. WSDM separates the mixed signal and extracts the signal which is needed. As we all know, most communication signals are cyclostationarity. This property could be used as the prior information to extract the useful signal more correctly. In this paper, we propose a new algorithm which could extracts concerned signal by making use of the cyclostationarity. Theory analysis and computational simulation show that the proposed algorithm can recover signal correctly and dispose the interferences which are often in use to jam the communication system
Removal of Gas-Phase Elemental Mercury by Photocatalytic with Liquid Absorption
Authors: Chen Jie He , Sun Min Yu , Wu Jiang , He Ping , Pan Wei Guo , Ren Jian Xing , Gao Wen , Luo Hai Yan , Zhang Xiao Ying , Fang Ji Hui
Published: January 2012

In order to study the influence of UV irradiation, treat temperature of nano-titanium dioxide and intensity of UV irradiation on the mercury removal performance, experiments were carried out on a photocatalytic oxidization system to find the best experimental conditions. Commercial Degussa P25 was used as a photocatalyst loading on titanium mesh, and the mercury removal efficiency was stable at 8% in the absence of UV irradiation. Under the UV irradiation of 300W mercury lamp, the mercury removal efficiency surged to 100%. With the same light intensity, the same removal time, the mercury removal efficiency of nano-titanium dioxide calcinated at 100°C reached 92.2% after 0.5h while the mercury removal efficiency of nano-titanium dioxide calcinated at 500°C reached 93.6%. Intensity of UV irradiation has a positive impact on the mercury removal performance.
Bioinformatics Analysis and Characteristics of US2 Protein Encoded by the Newly Identified US2 Gene of Duck Enteritis Virus
Authors: Gao Jie , Cheng An Chun , Wang Ming Shu
Published: January 2012

In this article,we intend to provide readers with some bioinformation of DEV Us2 protein,for little information of this protein has been cited online.Us2 protein encoded by the DEV-US2 gene is one of the DEV tegument proteins. Like most members of the alphaherpesvirinae,the genes in the US region of its genome are well conserved,which means that both the major DEV protein Us2 and alphaherpesvirinae protein Us2 possess the similar functions.Us2 protein sequence analysis indicates that the protein possesses typical characteristics of tegument protein.The precursor Us2 consists of 239 amino acids and exhibits a molecular mass of 34 kDa. In conclusion,all the datas and consequences will provide a basis for further functional study of the DEV-Us2 protein and provide necessary datas for the new type clinical diagnosis of DEV and the development of new DEV vaccine.
The Process Modification of Bathing Wastewater Treatment and Reuse System in School
Authors: Wang Gang , Zhang Xiao Yan , Liu Jun Liang , Li Yan
Published: January 2012

School bathing wastewater treatment by contact oxidation as the reuse of reclaimed water. As lack of water During the holidays, the system can not function properly. When the students are back to school, a large number of bathing wastewater is generated in a very short period of time. Treated water can not meet the standards.and the Filtering equipments are easily contaminated. Now will be transformed regulation ponds for hydrolysis acidification-sbr-contact oxidation pool, add fenton reagent in primary contact oxidation ponds the entrance, plus PAC flocculant in sediment basins before flocculating sedimentation, improving aeration, water conditions.The system can start up in two weeks,And the water surface active agent can stability control in < 1.0 mg/L (in LAS plan).Reach national non-potable quality standards. Can be used for toilet flushing toilets back and urban greening.
Analysis of Heat Exchange Efficiency during the Spray Cooling Process
Authors: Liu Guan Nan , Gao Feng , Zhang Dang Yu , Liu Gen Fu
Published: January 2012

During the Spray cooling process in hot mine, the heat exchange efficiency of the liquid drop with the air is the key theoretical question. This article got the same enthalpy difference ratio expression with the first heat exchange efficiency in form when leaving the speed of horizontal direction out of account. The change discipline of heat exchange efficiency along with the initial speed and the diameter of the liquid drop was analyzed. The results showed that: the heat exchange efficiency is inversely proportional to the initial speed and the diameter of the liquid drop. Compared with the initial speed of the liquid drop, the diameter of the liquid drop has deeper influence to heat exchange efficiency. Meanwhile, when the diameter of the liquid drop is less than the critical value, its influence to the heat exchange efficiency would be reduced obviously.
A Novel Kernel Matrix Isomap Algorithm Based on Partial Least Squares
Authors: Li Bing , Guo Feng Ming , He Yi Gang
Published: January 2012

In this paper, to alleviate the influence of the noise the inaccurate measurement in the complicated environment, based on the robust ability in multivariate linear regression of PLS, and in combination with nonlinear data dimension reduction of manifold learning, a novel kernel matrix Isomap algorithm is proposed. The contribution rate is used to find and delete the “short circuit” edge. The matrix constructed by double centered transformation and kernel transformation trick is mapped to a high dimensional feature space, finally the relative position is obtained by PLS. Compared with traditional Isomap and MDS, simulation results indicate that the algorithm has good topology stability, generalization property, robustness and lower computational complexity
Study on MAEAM Multi-Body Potentials with Farther Neighbor Atoms for HCP Metals
Authors: Jin Hak Son , Du An
Published: January 2012

An end processing method of the pair-potential of modified analytical embedded atom method (MAEAM) was suggested for hcp metals with farther neighbor atoms. Through fitting the elastic constants, the cohesive energy and two equilibrium conditions of hcp metal crystals correctly, we changed the pair-potential parameters and the modification term parameters of the multi-body potential. The model calculations fully demonstrate the structure stability and the unrelaxed mono-vacancy properties of six hcp metals: Co, Mg, Re, Ru, Ti and Zr.
The Use of Biotreatment Technology to Dispose of Offshore Drilling Waste Oily Fluids
Authors: Li Zhi Yong , Xie Shui Xiang , Jiang Guang Cheng , Bao Mu Tai , Wang Zhi Li , Huang Xian Bin , Xu Fan
Published: January 2012

Disposing of oil-based drilling fluid with biotreatment technology has many advantages: it is only 30-50% of the expense of conventional chemical or physical processing technologies, has a low impact on the environment, with no secondary pollution, and utilizes local control and entails simple operations. After a series of collection, isolation, purification, cultivation and domestication of petroleum degrading bacterial, three strains were obtained that can effectively degrade petroleum hydrocarbons. The growth of the bacterial strains and the consequent crude oil degradation were found to be at the greatest rates using the following biochemical processing conditions. The strains were grown in ammonium nitrate and a small quantity of yeast powder at a temperature of 50°C and pH of 6.0. The strain quantity was 2%, and the rotating speed of the shaker was 180rpm. The biochemical disposal process and laboratory-scale simulation of processing devices of oil-based drilling fluid were also designed. The oil content of disposed oily waste mud generally was generally less than 2mg/L, and the degradability of the waste was over 98%. The performance index meets the requirement of the China’s offshore wastewater discharge standards.
Forklift Hydraulic System Simulation Based on ADAMS
Authors: Wang You Min , Zhao Chun , Zhang Jian Hua
Published: January 2012

In order to improve design performance, shorten development cycles, reduce production cost, we design and research the forklift hydraulic system, developed forklift hydraulic system diagram. Forklift virtual prototype’s 3-D solid modeling is designed by Pro / E three-dimensional software, and imported into the ADAMS environment. Add constraints and drivers exert the control function separately to the tilting cylinder and lifting cylinder, carry on the kinematics simulation. Through the analysis to the compound motion actuation control functional arrangement、the compound motion speed graph、the gate’s tilt angle graph、the tilting cylinder stress graph and the lifting cylinder stress graph, he simulation result indicated: each cylinder design is reasonable, the movement without interference，the reasonable work scope satisfied to the work size request
The Design and Implementation of Monitoring Data Warehouse of Ambient Air Quality
Authors: Hou Rui Lian , Dong Ai Mei , Li Xiu Fang
Published: January 2012

This paper provides the schemata and arithmetic of the city ambient air quality monitoring data warehouse. And describes the Modeling Theory and Method for Constructing Fact Table of Data Warehouse,;At last The implementation of the CAQMADW prototype validates the feasibility of domain data model
An IoT Anomaly Detection Model Based on Artificial Immunity
Authors: Liu Cai Ming , Chen Si Yu , Zhang Yan , Chen Run , Guo Kui Liang
Published: January 2012

To resolve the anomaly detection problem in the distributed environment of the Internet of Things (IoT), an artificial immunity-based anomaly detection model for the IoT is proposed in this paper. The proposed model adopts artificial immune mechanisms to recognize anomaly behavior of IoT security threats. It is consisted of Anomaly detection agents (ADA) and Central Service System (CSS). ADA is deployed by the IoT gateway. It collects the initial data of the sense layer of the IoT. It works independently and produces excellent detection elements. It shares its excellent detection elements with the other ones and uploads them to the CSS. Theory analysis shows that the proposed model is able to adapt the local network environment of IoT and improve the anomaly detection ability in the global IoT environment.
The Analysis of Frame-Shear Wall Structure Model
Authors: Pan Lin , Zhang Yan Qing
Published: January 2012

On the basis of analysis of shear wall’s simplified model—equivalent model, this article investigates its application in RC frame-shear wall structure from static elastic -plastic calculation,which carries out elastic -plastic analysis compare with wall unit and equivalent model and illuminates simplified model’s feasibility in RC frame-shear wall structure static elastic -plastic analysis under the maximum earthquake action
Stiffening and End Processing of MAEAM Pair Potential for FCC Metals
Authors: Jin Hak Son , Du An
Published: January 2012

A stiffening function and a truncated function of the pair-potential of the modified analytical embedded atom method (MAEAM) were suggested for fcc metals. Through fitting the mono-vacancy migration energy, the elastic constants, the cohesive energy and an equilibrium condition of fcc metal crystals correctly, we determined the stiffening parameter and changed the pair-potential parameters and the modification term parameter of the multi-body potential for fcc metals: Ag, Al, Au, Cu, Ir, Ni, Pd, Pt, and Rh. The model calculations fully demonstrate the phonon dispersion curves and the unrelaxed mono-vacancy properties of the nine fcc metals.
A Novel Multi-Layer Intelligent Test and Adjustment Technology for Water Injection Well
Authors: Jia De Li , Wang Feng Shan , Zhang Shu Jin
Published: January 2012

The layered recovery technology has been applied to the heterogeneous multi-layer standstone oilfields for many years. However, as these standstone oilfields have been entering into the ultra-high water cut period, the conventional layered water injection technology has too long test and adjustment period and heavy workload and cannot determine the reservoir condition. To solve this problem, this paper proposes and develops an intelligent multi-layer water injection technology suitable for the ultra-high water cut period based on the synchronous dynamic test and adjustment idea. The whole flow adjustment process has no any intervention and the synchronous dynamic flow adjustment of each layer finishes by the digital clock calibration thereby avoiding interlayer interference. This technology also can obtain data by the redisplay of computer. The experimental results show that this technology not only improves water injection effect and reduces the field workload, but also provides the basis of data analysis for implementation and adjustment of meticulous oil development plan
Synthesis of Li0.8Zn1.1PO4 and its Selectivity to Li+ Exchange
Authors: Li Heng
Published: January 2012

The ion-exchanger Li0.8Zn1.1PO4of spinel type was prepared by means of the solid state reaction crystallization method, and was acid-modified. This inorganic ion-exchanger(Li0.8Zn1.1PO4) has the saturation capacity of exchange for Li+higher than those for other alkali ions, the saturation capacity of exchange for Li+reaches to 3.0mmol/g.
Analysis on Peeping Image Enhancement of Coal Mine Borehole Based on Wavelet Packet Decomposition
Authors: Zha Wen Hua , Xiong Jun Li , Liu Xiao Hu
Published: January 2012

According to the characteristics of wavelet packet decomposition and reconstruction, an image enhancement method is put forward by decomposing wavelet packet and adjusting enhancement coefficient of band signal by the energy size. First, borehole peep images were decomposed by wavelet packet, and obtained the signal bandwidth of each layer after wavelet packet decomposition combined with Fourier transform. Secondly, energy of each band signal was calculated, wavelet packet decomposition coefficients according to the size of band energy were enhanced and weakened. Finally, the wavelet packet images were reconstructed. Project case indicates that this method can effectively enhance the images, especially the information of fractured surrounding rock.
Interleaved Synchronous Buck Converter with a Coupled Inductor
Authors: Do Hyun Lark
Published: January 2012

An interleaved synchronous buck converter with a coupled inductor is proposed in this paper. In the proposed converter, two synchronous buck converters operate with the interleaving technique. Moreover, a single magnetic component is utilized. By using a loosely coupled inductor, its leakage inductances are utilized to control the power flow. Theoretical analysis and performance of the proposed converter were verified on an experimental prototype operating at 100 kHz switching frequency
Optical Performance of Horizontal Single-Axis Tracked Solar Panels
Authors: Li Gui Hua , Tang Run Sheng , Zhong Hao
Published: January 2012

To investigate the optical performance of horizontal single-axis (HA) sun-tracked solar panels, a mathematical procedure to estimate daily collectible radiation on fixed, 2-axis and HA-tracked solar panels was developed based monthly horizontal radiation. Results showed that the annual solar gain on a HA-tracked solar panel was related to the orientation of HA, tracking the sun about the east-west axis was worst to boost the energy collection of solar panels, and tracking the sun about the south-north axis was best. Results also indicated that the ratio of annual collectible radiation on horizontal south-north sun-axis tracked solar panels to that with full 2-axis sun-tracking decreased with the increase in site latitude, implying that the horizontal south-north axis sun-tracking was suitable to be employed in regions with lower geographical latitude
Research of Minimum Ship Safety Manning for Trial
Authors: Zhang Xiao Dong , Zhang Hao , Chen Wei Jiong
Published: January 2012

The evaluation model of a new assignment of manning on board of coasters while maintaining the current level of safety is proposed. Principal Component Analysis (PCA) is applied to determine the relative weights of the quantitative evaluation criteria, and fuzzy analytic hierarchy process (FAHP) is applied to determine the relative weights of the qualitative evaluation criteria. Finally, Topsis model is applied to rank the alternatives. Empirical results show that the proposed methods are viable approaches in solving the evaluation the minimum Ship Safety Manning
Diamond Tools Matrix Composites of Co Replaced by Fe with Doping Rare Earth
Authors: Zou Qing Hua
Published: January 2012

The experiment on adding rare earth elements doped in diamond matrix composites is made. Based on the doping of rare earth in metal powders including tungsten carbide, iron and nickel, Co is entirely replaced by Fe with rare earth in diamond matrix composites, and the process route of rare earth doping is indicated. The related performance of is measured, and the results obtained show that the bending strength, the hardness and the impact ductility of Fe matrix composites with rare earth are improved. The practical service performance of Fe matrix composites with rare earth has reached up to the practical service performance of Co matrix, and bearing good practical service performance, low price, have made corresponding diamond tools.
Numerical Study of the Effect of Wall Opening on Wind Pressures on Low-Rise Gable-Roofed Buildings
Authors: Chen Shui Fu , Yu Miao , Wang Dong Yao
Published: January 2012

The external and internal wind pressure distribution characteristics on the roof surface of a low-rise gable-roofed building with wall openings are studied by means of the numerical simulation technique. The validity and accuracy of the numerical simulation is first demonstrated by comparison with the existing full-scale experimental results. In order to investigate the effect of wall opening locations on the pressure distribution, a parametric analysis is carried out to a typical gable-roofed building with different wall opening conditions. The analysis results indicate that wall opening locations have no significant effect on the external wind pressure but have considerable influence on the internal wind pressure. The cases of two opposite wall openings appear to be more favorable than those of single front wall openging for wind resistance of the building roof, if the angle of approaching wind flow from the inner normal line of the front wall is smaller than 90°.
DTA of Rare-Earth Fe-Based Matrix Composites for Diamond Tools
Authors: Zou Qing Hua
Published: January 2012

Research focused mainly on Fe-based matrix composite (the wrapped diamond), used Fe powder to replace the expensive cobalt powder (Co-based matrix composite), and add the rare earth (RE) elements to reinforce the related physical properties of this Fe-based matrix composite for diamond tools. Conducted on the related matrix composite differential thermal analysis (DTA), in particular Fe-based matrix composite containing 35% iron powder (with RE or without RE) Were discussed for DTA and the package insert forces. DTA and the analysis is consistent with the empirical formula. By hot pressing the composite with diamond as the research object, having researched the relationship among the heat capacity (CP) at constant pressure and other related physical parameters （the package inserts force and E etc.）. Take 35%Fe-based powder composite materials for diamond tools (with RE or without RE) as the research objiect, combining analysis of the problem for the porosity, and the densification, and the package inserts force, and the DTA tests, which the addition manner of rare earth, add form , and quantity are determined, so that the changes laws of DTA curve and heat capacity (CP) of Fe-based composite containing 35% iron powder( with the RE) are similar to the that of pure Co composites. Apply these laws to improve the hot pressing technology and mechanical properties of the diamond tools (bending strength, impact toughness, hardness and porosity) and so on
Intelligent Control Method for Aircraft Deicing Fluidtemperature Based on a New Adaptive Smith Predictor
Authors: Xing Zhi Wei , Ding Bing Jun
Published: January 2012

During the course of industry control, pure hysteresis, time-varying，non- linear complex systems often occur. It is ineffective to solve the issues above with the traditional fuzzy control and PID control methods. Against the pure hysteresis, time-varying, non- linear characteristics of Aircraft Deicing Fluid rapid heating system, on the basis of Smith Predictor and traditional PID, a Fuzzy-PID control method is proposed based on an adaptive Smith predictor. In this way, pure hysteresis of the system will be compensated, to reduce the overshoot and enhance the stability of the system. By establishing the mathematical model of Aircraft Deicing Fluid rapid heating system and simulating for the model obtain the simulation results, which have shown that the method is effective, can improve the qualities of control and enhance the stability of temperature control system significantly
Performance of Alloyed CVD-Coated and PVD-Coated Carbide Tools in Dry Machining Nickel Based Alloy Inconel718
Authors: Gao Dong , Hao Zhao Peng , Han Rong Di , Chang Yan Li
Published: January 2012

Nickel-based alloy Inconel718 is a difficult-to-cut material due to lower thermal conductivity, affinity to react with tool material, the cutting tools wear very rapidly due to the high cutting temperature and high cutting force. It is important to choose tool material reasonably. In this paper, cutting performance of the multi-layer CVD-coated (TiN/Al2O3/TiC) tool and PVD-coated (TiAlN) tool were evaluated by cutting temperature, cutting force, tool wear and tool life. The results showed that PVD-coated (TiAlN) tool was suitable for cutting Inconel718.
The Study on Surface Defects on the Machined Surface in High Speed Milling of SiCp/Al Composites
Authors: Zhou Ming , Wang Yang Jun , Jin Xiang Yang
Published: January 2012

For the purpose of investigating the surface defects on the machined surface in high speed milling of SiCp/Al Composites, the high speed milling experiments were performed on the precision milling machine (ops650).The machined surface was observed and measured by the OLS3000 Confocal Laser Scanning Microscope. The surface defects on the machined surface were classified and investigated. The surface defects mainly include grooves and holes due to the pulled-out particle. According to the geometrical characteristics of the pulled-out particles.
Tool Life Prediction and Cutting Parameter Optimization for Coated Carbide in Ti6Al4V Turning
Authors: Wang X.Q , Ai Xing , Zhao Jun , Fu X.L. , Pan Y. Z.
Published: January 2012

Ti6Al4V is a difficult to machine alloy with low cutting efficiency and server tool wear. A series of orthogonal turning tests with coated carbide in higher speed scale was carried out on a CA6140 lathe. The experiential functions of tool life based on orthogonal experiment were developed. The tool wear morphologies were examined by scanning electron microscope (SEM) and energy disperse spectroscopy (EDS), adhesion, diffusion and micro-chipping were the major wear mechanisms of coated carbide tool. Finally, the cutting parameters of coated carbide tool in Ti6Al4V dry turning were optimized based on tool life-efficiency contour analysis, in same cutting efficiency, the lower cutting speed and larger depth of cut are the better selection in Ti6Al4V turning for coated carbide tool.
An Experimental Investigation of the Cutting Force in High Speed Ball-End Rough Milling of Cr12MoV
Authors: Liu Zi Ye , Huang Chuan Zhen , Zhuang Xin Qiang , Zou Bin , Liu Han Lian , Zhu Hong Tao
Published: January 2012

An orthogonal test was carried out so as to analyze the cutting force in high speed rough milling with ball-end cutting tools. The wave form of the cutting force components was analyzed. The range analysis was performed to investigate the effect of cutting parameters on the cutting force. The analysis results show that the depth of cut and feed rate have the most significant effect on the resultant force. An empirical equation to describe the resultant cutting force was developed.
Research on the Cutting Mechanism of High-Speed Precision Cutting TC4
Authors: Yang Hai Dong , Zhou Q.J. , Zhang C.G.
Published: January 2012

In this paper, TC4 (Ti6Al4V) alloy has been cut at high speed minutely .Chip roots is extracted by rapid knife device. The optical microscopic image of the root chip is analyzed. The reasons why it is difficult to cut for TC4 alloy are firstly due to the low ability for heat transfer, while the second one maybe the cutting path is mainly the trans-granular failure which will consume more energy due to the coarse grains of TC4 alloy.
Wear Behavior of PCBN Tool in High Speed Turning TC4
Authors: Yang Hai Dong , Liu N. , Ding Z. , Zhu Z.G. , Zhang C.G.
Published: January 2012

PCBN tools were used for the turning of TC4. The cutting behavior and wear mechanisms were examined by means of the microscope, SEM and EDS analyses. The results have shown that ,the forms of the tool wear are mainly the rake face wear, flank wear, tip damage ,flaking and tipping; while the wear mechanism are mainly adhesion wear ,diffusion wear, machine wear and oxidation wear.
A Method for Enhancing the Accuracy of On-Machine Inspection for Five-Axis CNC Machines
Authors: Bao Sheng , Zhang Xi , Feng Ping Fa
Published: January 2012

The efficiency of manufacturing structural parts can be improved by using on-machine inspection system. It is difficult to separate the valid information from hundreds of points and correct the errors by rotating and translating the workpiece coordinate system directly, especially for five-axis CNC machines. In this paper, a practical method is designed to correct errors easily. By using the least square method, an error reference frame is constructed, and the relation between the compensation values and coordinates of the theoretical points is derived. An example of aircraft structural parts is presented to validate the design.
On the Business Information Safety under the Context of E-Commerce
Authors: Zeng Xin Yong
Published: January 2012

With the continuous development of information technology and widespread of the Internet, e-commerce has become the mainstream business mode in the world economy. Under the context of e-commerce, enterprises are faced with enormous information resources, and the competition among the enterprises is also built on the basis of informatization, while business information safety is the essence of business informatization. The paper has conducted profound researches on the business information safety from three aspects: collection, application and management of information.
Research on Negotiation for Slotting Allowances between Retailers and Suppliers Based on Game Theory
Authors: Tang Chun
Published: January 2012

Suppliers have to pay a certain sum of money in order to enter into retailers’ sales area, which is a common way of transaction in the Market Economy, but some giant retailers take advantage of the sales channel resources they have possessed and charge unreasonable slotting allowances from suppliers for one reason after another, which damages suppliers’ legal rights and interests, disrupting the normal market trading order. To some extent, it even damages customers’ legal rights and interests, which does no good to the sustained and sound development of retailing business. Therefore, based on game theory, this paper analyzes some factors affecting slotting allowances so as to provide some theoretical proof to effectively regulate slotting allowances in circulation of goods and improve the relationship between suppliers and retailers.
Ultra-Precision Shaping and Ultra-Smooth Polishing Investigation of High-Purity Quartz Glass in Nanoparticle Colloid Jet Machining
Authors: Song Xiao Zong , Zhang Yong , Zhang Fei Hu
Published: January 2012

In this paper, ultra-precision shaping and ultra-smooth polishing investigations have been done upon a high-purity quartz glass substrate with an aspheric surface in nanoparticle colloid jet machining, which is an ultra smooth surface processing technique utilizing surface chemical reaction between work surface atoms and nanoparticles to remove the uppermost surface atoms. The shaping and polishing characters of high-purity quartz glass in nanoparticle colloid jet machining has been researched. The surface profile of the high-purity quartz glass workpiece before and after shaping has been measured by surface profilometer. And the surface microscopic morphological characteristics of high-purity quartz glass surface polished by nanoparticle colloid jet machining have been observed by atomic force microscopy (AFM). The measurement results indicate that nanoparticle colloid jet machining has good shaping ability for surface shape correction in ultra-precision machining. And the AFM observation results show that the roughness of the high-purity quartz glass surface has been reduced from 1.919 nm RMS to 0.784 nm RMS by nanoparticle colloid jet machining.
Grey New Information GRM(1,1) Model Based on Accumulated Generating Operation of Reciprocal Number and its Application
Authors: Luo You Xin
Published: January 2012

Monotonically decreasing sequence data for the traditional modeling method using the gray model accuracy is not high, using Accumulated Generating Operation in reciprocal number, utilize three gray derivative processing method is deduced and the parameters optimization grey derivative calculation formula, and then established GRM(1,1) based on accumulated generating operation in reciprocal number on the equidistance, Gray provides a new method of modeling. Data processing examples show that the model's practicality and reliability.
Property of Nanoporous Metal-Organic Frameworks at Different Synthesis Temperature
Authors: Ma Yuan Hui , Zhang Lei , Tang Cheng Chun
Published: January 2012

The nanoporous metal-organic frameworks were synthesized under solvothermal conditions using organic solvent dimethylformamide. The samples were characterized by XRD, SEM, TGA, FT-IR and specific surface area for their properties difference. When the reaction temperature rises, the particle size becomes larger. All TGA curves are the basically same, the framework structure begins to be destroyed from 500°C up to around 600°C. The metal-organic frameworks accepted at reaction temperature 190°C have larger specific surface area and better structure stability.
Research on Flame Retarded of Polyurethane Rigid Foam/Expanded Perlite Thermal Insulation Composites
Authors: Ai Ming Xing , Cao Li Qiang , Guo Xiang Yong , Zhao Xiao Long
Published: January 2012

The polyurethane rigid foam/expanded perlite thermal insulation composites (PPC) have been prepared by mixing the two-component polyurethane and expanded perlite. The effects of proportioning of constituents on the fireproofing performance of PPC were investigated according to maximum flame height using a small scale burner test. The results showed the expanded perlite has a great effect on the flame retardant properties of PPC.
The Analysis on Materials Testing Network of Ecology Environment
Authors: Fang Xin Chun , Sun Jian Zhong , Kong Rui Ping , Shi Lu Kui
Published: January 2012

As the network technology is widely used in the functional materials test of ecology environment, it becomes more and more important to balance testing network performance fast and accurately. However, there are so many network testing methods with a variety of user needs and different scopes. If we use these test methods indiscriminately, time and money is largely consumed, and the testing results often cannot meet user's requirements. Thus, while testing the network performance, in order to accelerate the speed of the material testing, and ensure the quality and the accuracy of test results, characteristics and user's requirements must be selected and improved.
The Research on the Funding Barriers of the Development Wood Carbon Sequestration Materials Industry
Authors: Cui Yu Shu , Guo Li Hua , Shao Hong Ling
Published: January 2012

Global warming caused by CO2 and other greenhouse gas emissions has a direct impact of human existence, The current three sets of technological solutions corresponding to the global warming to develop low carbon economy such as improving energy efficiency and conservation, reducing the carbon content of energy, development and utilization of natural carbon sinks, are not only existence of selection bottleneck but also run hardly and cannot solve global warming in this century fundamentally. Wood carbon sequestration is a new global carbon pool based on technological innovation, combined with modern agriculture, created by means of industrialization. Wood carbon sequestration is not only a long-term carbon sequestration benefits storage body also can be a low-cost production resources or materials. To cultivate it to become an industry will not only become the new economic growth point for farmers to increase incomes, promote regional economic restructuring and industrial upgrading but also end the dependence of forest wood resources to human. This paper puts forward some corresponding countermeasures and suggestions on making reform on institutional level and the innovation of financial products to support the development of wood carbon sequestration materials industry, based on the financing obstacles to the development of wood carbon sequestration materials industry, form the significance of wood carbon sequestration materials development.
Evaluation of Easy-to-Clean Property of Ceramic
Authors: Di Xing Fu , Wang Li Juan , Liang Jin Sheng , Han Dao Yang
Published: January 2012

Main evaluation methods of easy-to-clean property of domestic ceramics and sanitary wares were reviewed. Easy-to-clean technology meets the 21st century energy-saving industrial policies and will improve rapidly in new product development, evaluation techniques and standardization research.
Testing Method of Infrared Emissivity Used in Powders Industry
Authors: Li Hui Wen , Ding Yan , Liang Jin Sheng , Meng Jun Ping , Zhao Li Fang
Published: January 2012

The test apparatus of infrared emissivity used in powders industry was researched by controlling the temperature accurately and collecting the signals of surface temperature of two standard samples and a test sample. The tourmaline samples from ten mines had been tested by the new test apparatus. Compared with the results from FTIR, it was shown that average value of relative error was 0.378% and repeatability error was less than 0.6% after correcting by the coefficient kc = 0.958.
Testing Method of Spontaneous Polarity Used in Powders Industry
Authors: Zhao Li Fang , Ding Yan , Liang Jin Sheng , Meng Jun Ping , Li Hui Wen
Published: January 2012

By fitting calculation of functional relationship between charge quantity and temperature on condition that powders were shielded, a device was proposed to measure spontaneous polarity of powders, and samples of typical tourmaline were measured. The results showed when tourmaline powders of different origins were heated to 80, minimum value of spontaneous polarization strength was 3.204×10-4C/m2, and maximum value was 1.53×10-3C/m2. The conclusion was in accord with results got from crystal structure analysis, and repeatability r was 1.726×10-6C/m2with 95% confidence probability.
Application of Task-Based Language Teaching in University Education of Functional Materials Specialty English
Authors: Cheng Ming Ming , Wang Fei , Wang Li Juan
Published: January 2012

Functional material specialty English teaching aims at fostering technical personnel with a high level of English proficiency; however, the goal is not achieved due to the boring teaching mode of imparting knowledge. In the paper, task-based language teaching, which is student-centered and characterized by learning by doing and using, is applied to the functional material specialty English to arouse initiatives of students through completing tasks in authentic situations, thus developing their English comprehensive abilities and professional skills. The task is to prepare sepiolite nanofibers by means of the high-speed air current superfine technique using natural sepiolite samples as raw materials and then make a presentation to describe the whole process of the experiment in English in the class. Teachers should monitor the progress of the task to help students complete the task successfully and develop a sense of responsibility to cultivate their practical ability of language using. Through the task, English comprehensive abilities and professional skills of students are improved, and specialty English teaching abilities of teachers is developed.
Effect of Chitosan as Antimicrobial Agent on Flame Retardant Protein Viscose Fiber
Authors: Zhao Zhou , Li Qing Shan , Di You Bo , Wang Xin , Hong Wei
Published: January 2012

The effects of chitosan as the antimicrobial on Protein viscose fibers were studied in this research. Antimicrobial flame-retardant protein viscose fibers are more efficient compared with original flame-retardant protein viscose fiber in improving the limiting oxygen index (LOI) of fiber. The effectiveness of the microstructure was investigated using scanning electron microscope (SEM).SEM images showed that the antimicrobial finishing and the softener were made in a same bath, which might be due to the formation of a protective layer or cross linking effect.
FE Analysis of Sif of Interfacial Crack Emanating from a Circular Notch in Ceramic/Metal Bi-Materials
Authors: Ouinas Djamel , Sahnoun Mohamed , Benderdouche N.
Published: January 2012

Ceramic/metal bimaterials systems are increasingly used in industry owing to the synergetic association of opposite properties of the bonded materials. Discontinuity in these properties can result in crack initiation and stress concentration entailing the bimaterial system failure. A good understanding of damage mechanism at the metal/ceramic interface is crucial to the dimensioning of multilayered systems. In this work the finite element method is used to analyze the stress concentration effect in a linear interface and curved interface. The geometrical configuration of the interface has a great influence the stress concentration on distribution developed near or in the assembly interface. The effect of a circular notch on the behavior of an interfacial crack is highlighted. The results indicate that the interface generates normal and tangential stress concentration resondless of the assembly mechanical properties. The curved geometry of the interface strongly reduces stress concentration in comparison with the linear interface. The reduction is 90%.
Experimental Results of Polyester/Glass Fibers – Cementitious Matrix Bond Characteristics: Effect of Silane on Fibers
Authors: Abriak Nor Edine , Sebaibi Nassim , Benzerzour Mahfoud
Published: January 2012

In this paper, the effect of silane treatment on the bond characteristics of fiber in cementitious matrix, including bond strength and pullout energy are presented. These fibres arise from recycling by crushing of thermoset composite based on unsaturated polyester/glass fiber. Various silane treatment contents ranging from 0% to 1% are used. This treatment by silane enhances the fiber–matrix interfacial properties, especially in fiber pullout energy. However, the bond strength was increased by 150% and the pullout energy was increased by 300%. It is also concluded that in terms of the bond characteristics, the optimal content of silane is 0.5%, given the conditions of the experimental program. The micro structural observation confirms the findings on the interfacial-toughening mechanism drawn from the fiber pullout test results.
Analysis of Microstructure and Textures on Batch Annealed IF Steel with Different Cold Reduction Ratio
Authors: Wang Min Li , Zheng Zhi Wang , Zhang Gong Ting
Published: January 2012

Based on the experimental materials of hot rolled Ti+Nb-IF steels and Ti-IF steels produced in the industry, the effects of cold reduction ratios on its microstructures, mechanical properties and textures were investigated. The results show that experimental samples with different cold reduction ratios have been finished recrystallization by batch annealing at 720°C and soaking with 5h. As the cold reduction ratio increases, the grains will be refined and uniform, and the textures trends to be {111} texture. The {223}<110>, {111}, and {114}<110> textures appeared after cold rolling are inherited followed by annealing, whose intensities would be higher as the cold rolling ratio increased. And the textures will transform to the {223}<110>, {111}<110> and {114}<110> textures. With the increasing cold reduction ratio, the values of the yield strength Rp0.2 and tension strength Rm increase, but the Rp0.2 is almost about 100MPa. However, the strain hardening index n90 gradually decreases. The plastic strain ratio r90 which reaches the maximum with cold reduction ratio of 70% increases firstly and then decreases. Thus, the optimal cold reduction ratio of 70% to 80% is determined, which can obtain good deep drawing performances.
The Design of Instrument for the Level and Label of Gasoline Measurement Based on AT89C52
Authors: Han Hong Fang A , Lin Kang Hong , Sun Shou Chang , Chen Shu Yue
Published: January 2012

A measuring circuit of the level and the label of the oil is concered in this paper.A combinatorial sensor is designed to calculate the liquid level and the dielectric constant at the same time. The calculation is achived by using AT89C52. In the process of the calculation ,arithmetic mean filtering and least-squares method are used to improve the accuracy .The circuit of this system is simple, low power consumption and suitable for using in portable measurement devices.
Implementation of 10-Gb/s Parallel BCH Decoder Based on Virtex-5 FPGA
Authors: Qin Zhang , Hu Qing Sheng
Published: January 2012

This paper presents a design of 10Gb/s BCH decoder which is compatible with the protocol of G.975 and can be applied in optical fiber communication. The main blocks of this decoder include syndrome calculator, key-equation solver, Chien search and error correction. In order to achieve high speed, 8-bit parallel syndrome calculator and Chien search block are adopted. By sharing the key-equation solver, the numb er of key-equation solver is reduced and the hardware resources are saved. This decoder has been implemented in Virtex-5 FPGA and the verification results show that the decoder can work properly under the clock of 166MHz and the data rate can be up to 10Gb/s.
Simulation of Power Quality Using S-Transform
Authors: Gu Jin Hong , Liu Qi , Cheng Chao Hui
Published: January 2012

According to the signal characteristics of power quality disturbances, a detection and classification method based on S-transform is proposed. The S-transform module matrix is used to detect and classify power quality disturbance signal. Eight disturbance signals (voltage sag, voltage swell, momentary interruption, voltage spike, voltage notch, harmonic, inter-harmonic and oscillatory transients) which influence power quality have been simulated. The results show that the method can be used to localize the disturbance time and duration precisely and classify them simply.
Design of a Video Processor Based on FPGA
Authors: Zhang Qi Gui , Zhang Bo , Zhang Gang
Published: January 2012

The design of a kind of video processor with the function of auto-focusing is introduced in this paper. The video processor receives digital 8-bit YCbCr video signal. With a piece of DDR2 SDRAM as frame buffer, the video processor realizes the function of format conversion, frame up-scaling and color space conversion. The paper proposes an improved gray scale differential auto-focus algorithm and calculates the focus value of the current image real-timely. Applying the mountain climbing searching strategy to control the moving of the focus motor, and realize the function of auto-focusing. The whole design is realized in VHDL and verified with Xilinx XUPV5-LX110T FPGA developing board.
Analysis of Electrocardio Signal Based on Approximate Entropy
Authors: Zhao Xiao Lei , Ren Ming Rong , Zhang Ya Ting , Wang Pu
Published: January 2012

The research and detection of heart disease depends on the analysis of the characteristic of electrocardio signal. Current analysis methods mainly include: (1) time domain analysis is a common used approach. With experience learned by observation and calculation, researchers examine errors and interferences to calculate means and variances directly within time domain. Analysis quality of this method demands higher request for researchers’ experience and skill although it’s a direct and significant result. (2) Frequency domain analysis, such as spectrum estimation, is largely applied to electrocardio signal researches and clinical applications. The analysis reflects abundant electrocardio activities, but failed to show details of the characteristics due to lack of time information. (3) time-frequency domain analysis describes energy density under different time and frequency of electrocardio signal at one time. It clarifies the relationship of signal frequency’s changing along with time such as wavelet transform method. (4) Nonlinear analysis is generally applied to biomedicine signal research in recent years. Correlation dimension, kolmogorov entropy, lyapunov component are major research methods to estimate some nonlinear dynamic parameters to represent the characteristic of electrocardio signal.
Progress Delay Factors Analysis in Thermal Power Plant Ash Yard Project Based on PCA Method
Authors: Wu Yun Na , Wang Jia Li , Li Jiang Shuai , Lai Zhi Qiang
Published: January 2012

In real operation in the thermal power, the ash fields project often cannot be finished following the progress schedule, and this always impact on project running smoothly. In this article some representative delay factors were obtained through the survey and their relationship between themselves were analyzed using PCA method in the SPSS software and their importance of resolving this issue were determined. What is more important, according to this article we can guide our practice and solve our progress delay. It provides us a commanding reference to improve the progress of thermal power plants.
Keywords Assignment to Fixed Image Region Segmentations Using Fuzzy SVMs
Authors: Ji Ye , Chen Yan , Cao Yan , Qu Li Li
Published: January 2012

The basic idea of this paper is multiple keywords can be assigned to image through the method of fixed region segmentation. We divide a single image into the 4-level regions. For each of them, the combined feature is extracted and inputted into the trained Fuzzy SVMs to classify, which has been proved better than conventional SVMs in the generalization ability. The values of classification in each category are calculated. Based on these values, the keywords are assigned.
Analysis of the Stability of Synchronous Motor Driving without Sensor
Authors: Xue Feng , Shi Guo Qing
Published: January 2012

The rotor’s position of brushless synchronous motor can only be got by windings’ currents, terminal voltages in the field where the sensors can not be installed. How to steadily drive the motor in the weak feedback becomes the key to the control method. Quantitative analysis of stability for control method is made for two kinds of motor which has trapezia wave and sine wave anti electromotive force， in which the concept of equivalent current bundle is brought forward. The computer simulation proves the results of analysis. Academic direction is made for the stable control of sensorless driving.