bluuebunny/crossref_metadata_2025 huggingface dataset:
Maintaining Manufacturing Viability in Difficult Times with the Balanced Scorecard
Authors: Werner Michael L. , Xu Fu Yuan
Published: February 2012

In today’s competitive global environment it is becoming increasingly difficult for small and medium size manufacturers to survive. In the past, low labor and overhead costs coupled with more favorable currency exchange rates have allowed quality Chinese manufacturers to dominate word markets. In time, Chinese manufacturing grew into a dominant player in various markets cross the globe. But things are changing making it more difficult for Chinese manufacturers to maintain their growth, and in fact, have caused plant closings for some companies that were quite successful in the past. These changes have included higher labor costs, higher raw materials costs, and an exchange rate that makes Chinese goods more expensive in the world marketplace. To help their companies to prosper or at least survive, many manufactures have focused on the financial aspects of their businesses. This is not uncommon in the world, as it makes sense to focus on finances first and foremost because businesses cannot survive without the financial resources. A focus on the financial aspect of business, however, has caused some manufacturers to do the wrong things. For example, some companies have gone on cost-cutting campaigns aimed at reducing costs whenever and wherever possible. Unfortunately, such cost cutting measures often result in lower product quality and loosing other important company resources, such as experience managers and staff. When faced with difficult times, in order to maintain long-term health and viability manufacturing business leaders must broaden their focus beyond the financial statements. A sharp focus on the financial aspect of a company may do more to harm the company’s prospects for a bright and successful future than to help. The balanced scorecard is a management technique developed by Harvard professor Robert Kaplan and consultant David Norton that, instead of focusing solely on financial objectives, broadens management attention by providing an integrated set of performance measures organized around four distinct perspectives – financial, customer, internal, and innovation and learning. [1] The balanced scorecard helps business leaders maintain successful operations by managing their businesses and achieve full execution of their strategies through the use of objectives, measures, targets, and initiatives. The balanced scorecard is a way to help manufacturing firms survive even in a difficult changing global marketplace. This paper presents an introduction to the balanced scorecard so manufacturing managers or their consultants are able to understand how the balanced scorecard works. Finally, the paper presents a basic example that can be used as a starting point for a simple balanced scorecard implementation in a small or medium size manufacturer.
Integrated Production-Inventory Model in a Multi-Echelon Closed-Loop Supply Chain with Product Returns
Authors: Zarina Abu Hassan , Lee Luong , Lee Sang Heon
Published: February 2012

This paper deals with production-inventory policy in the context of multi-echelon closed-loop supply chains. The system comprises of a number of distributors, single manufacturer, single supplier and single dismantler. The objective is to develop and formulate the mathematical modeling for deterministic approach.
A Study on the Configuration of Handling Equipments for Container Terminal
Authors: Chang Dao Fang , Jiang Zhu Hua , He Jun Liang , Hu Xiao Na
Published: February 2012

A configuration model of handling equipments was developed for container terminal based on integer programming, which aims at the problem of configuration of handling equipments such as quay crane, yard crane and internal truck of container terminal. The model’s objective function was subject to the minimization of the total comprehensive cost. Furthermore, spreadsheet is employed to resolve this model to determine the best configuration of handling equipments. Finally, experiments considered some terminal with various throughputs were used for verifying this model. Therein, it was found from the computational results that the proposed approach could efficiently solve the configuration of handling equipments.
The Conservation Methods of Ancient Lu Embroidery Fabric
Authors: Hang Yin
Published: February 2012

As a kind of silk, Lu Embroider is an valuable cultural heritage. This textile adequately approves the advancement of Chinese civilization. At the same time, Lu Embroider is easy decayed. We lack the consciousness of protecting the cultural heritage. In this paper, the reasons and significance of conservation ancient Lu Embroider fabric are introduced. The correspond conservation methods also is presented at the same time.
Designing Reverse Logistics Networks
Authors: Liu Wei , Wang Mei Zhu
Published: February 2012

With growing environmental concern, many organizations have become aware of the importance of designing reverse logistics networks. Although lots of models have been developed to design reverse logistics, there still exist some drawbacks in these existing design models. This paper proposes a mixed integer linear programming model to study the reverse logistics networks, which seeks to minimize the total cost. The factors considered in the model include the cost of collection, disassembly and treatment, processing capacity, sales income from material fractions after disassembly, as well as recycling subsidy. finally, a few of issues requiring further research are highlighted.
Study on Service Architecture and Information Platform of Supply Chain Logistics Based on Service Chain
Authors: Cui Qian , Wang Xi Fu , Chen Jia Fang
Published: February 2012

Considering the concept of service chain and the environment changes of supply chain logistics industry, the supply chain logistics based on service chain was proposed,on this basis of character, analysed the building of its service architecture and service information platform were deeply researched.
An Artificial Immune System Approach to Business Process Mining
Authors: Wei Yong He , Wang Jun Zhong
Published: February 2012

The aim of process mining is to identify and extract process patterns from data logs to reconstruct an overall process model. And the model’s structural complexity directly impacts readability and quality of the model. Immune systems have many characteristics such as uniqueness, autonomous, recognition of foreigners, distributed detection, and noise tolerance. This paper outlines an alternative approach to business process mining utilizing an artificial immune systems (AIS) technique, and some main steps and operators were depicted.
Analytical Study on Mechanism of Electrolysis and Plasma Polishing
Authors: Wang Ji , Suo Lai Chun , Guan Li Li , Fu Yi Li
Published: February 2012

Electrolysis and plasma polishing(EPP) is a new “green” technique that can efficiently polish metal workpieces and provide high-quality surface of the workpieces. In this paper, mechanism of EPP and why metal parts can be polished by EPP are expounded on by Streamer theory. EPP is a dynamic process consisting of oxidation and discharge. A precondition of EPP is that the removal rate of discharge is faster than oxidation. It is deduced from the mechanism and demonstrated experimentally that the material removal rate is direct proportion to the electric current density.
Design for Underwater Self-Propelled Model System
Authors: Zhang Wen Zhao , Xiao Chang Run , Liu Rui Jie
Published: February 2012

A set of structural composition and system composition of self-propelled submarine model which has already been used in experiments as well as the details of its long-wave controller and automation systems was introduced in this study. The feasibility of this technique applied to the model has been proved by real test in lake and the results derived from that will have some guiding significance to research on maneuverability of submarine which thus indicates that keep developing the self-propelled submarine model technique will for sure has a bright future.
Analysis of the Drive of 01N AT Based on the Lever Method
Authors: Li Jing Hua , Li Jiang Jiang
Published: February 2012

The rotation speed and drive scheme of 01N automatic transmission were analyzed based on lever method; Meanwhile, the design reasonableness of this transmissions scheme was verified as well.
An Application of New Approach for Dynamic Orders Selection to Maximize Restaurant Operational Profits
Authors: Ho Zih Ping
Published: February 2012

Restaurant dynamic orders selection problem is an important issue in operational profits. Restaurant managers face many pressures, i.e. cook facilities and customer satisfaction, etc., therefore, they schedule orders in a manual (First-come-first-serve) way and do not willing pay more attention to orders selection problem. In order to satisfy customer’s needs, restaurants always loose profits day by day due to add more manpower and equipments. The main purpose of this research is to construct a dynamic order selection approach to maximize a restaurant profits. This study followed cloud computing approach for solving applied mathematic research topics. The proposed new approach, it hybrid Apache server and PHP coding techniques; furthermore, it contained the optimization tools, which were coding by this study using PHP language to precede revised simplex methods mixed branch-and-bound algorithm. Through validations, we found that the proposed approaches would help to increased 214% profits in practical restaurant. Future research suggests applied this approach to others industries’ dynamic orders selection problems.
Evaluation of Water Cooling System of 1.5MW Rotor Based on CFD
Authors: Qin Ming , Dai Hai Tao , Ge Ming Wei
Published: February 2012

The water cooling system of 1.5MW rotor is evaluated using Computational Fluid Dynamics (CFD). 48 cooling holes are opened on the rotor stator to arrange the water cooling pipes, the temperature of inlet of the cooling water is 50 C with the velocity 1.2m/s. It is found that the air gap between the cooling pipes and holes on the stator hinders the heat exchange extensively. For this reason, the cooling system can't meet the design requirement. In order to solve this problem, the pourable silicone is filled in the gap between the cooling pipes and holes to enhance thermal conductivity. Based on this idea, ten kinds of piping arrangements are proposed, among which, nine kinds can achieve the cooling requirement.
Fine Particles of Rubber Cutting Machine Designed to Explore
Authors: Qiu Li Jun , Yang Jia
Published: February 2012

Tire production of fine particles of powder composition and the mechanical arrangement of tool methods of efficiency of the larger craft. Fine particles of cutting edge cutting machine is a small gap between the edge of the particles produced can not exercise the role of the crowded file. File can not be cut and milled to achieve simultaneously. Multi-blade knife and bevel knife gap between the tool installation form. Between powder particles in the twice cut or ground to reduce the powder particle size cheddar and improve work efficiency results.
Experiment Study of AGV Navigation Based on Multi-Sensor
Authors: Yao Xiao Peng , Zeng Li
Published: February 2012

Automated guided vehicle (AGV) is a kind of wheeled mobile robot, which used for the internal and external transport of materials from one place to another in flexible manufacture system (FMS). AGV are also used for repeating transportation tasks in other areas, such as warehouses, container terminals and external (underground) transportation systems. The AGV navigation algorithms are classiﬁed as global or local, depending on surrounding environment. In global navigation, the environment surrounding the AGV is known and the path which avoids the obstacle is selected. In local navigation, the environment surrounding the AGV is unknown, and sensors are used to detect the obstacles and avoid collision. In the past, a number of algorithms have been designed by many researchers for robot navigation problems. Through analyzing the existing positioning methods and precision for AGV, this paper design and develop a new navigation software based on multi-sensor information fusion algorithm, it is proved through the theory analysis and experiment that the position precision of AGV is ≤±5mm, posture precision is ≤±0.3°. It can full meet the requirements of robot’s accuracy.
Effect of Additive La2O3 on Synthesizing Diamonds Using Pure FeNi Powder Catalyst
Authors: Zheng You Jin , Huang Hai Liang , Zuo Gui Hong , Wang Dan
Published: February 2012

In this paper, industrial diamonds using FeNi powder catalyst with additive La2O3 has been synthesized by HPHT method. Optical microscope, XRD and SEM were utilized for observation and detection. The influences of additive La2O3 on the synthesis have been investigated from several aspects such as the diamond-forming conditions, the composition of synthesized sample and inclusions in diamond, and the morphology character of diamonds etc. The results indicate that There is a new compound LaO, LaFeO3, Fe3C and Fe3O4 in the sample., and related phenomena were given in detail in this paper.
Experiment on the Anti-Blocking Technology in No-Tillage Wheat Seeding
Authors: Zhang Xi Rui , Guo Lu , Li Hong Wen , He Jin , Zhang Lian Rui
Published: February 2012

Due to the large amount of straw in the double cropping area of the northern part in China, this paper developed an anti-blocking device in rotary tillage with three different types: ribbon, grinding and breaking the stubbles. Through analyzing the mechanism of anti-blocking devices, the relationship parameters of the passing ability of equipment, quantity of soil disturbance, fuel consumption and crop growth are identified. Field experiments demonstrate that adopting different anti-blocking devices in the dynamic driving type can produce different seed beds, can influence the quantity of soil disturbance of no-tillage land as well as the roots growth of wheat . By comparing the properties of no-tillage seeding of three anti-blocking devices ,such as quantity of soil disturbance, fuel consumption per unit and the growth of wheat (emergence number, tiller number, secondary root number and dry weight per plant), the impact of grinding type of ribbon is the best, rotary tillage type of ribbon takes second place, type of breaking the stubbles of ribbon rebases.
A Geometric Error Identification and Simulation Method Based on Laser Tracker for Large-Scale Multi-Axis NC Machine Tools
Authors: Ma Ji Yang , Peng Fang Yu , Yan Rong , Wu Jing
Published: February 2012

To evaluate the profile error of manufacture mainly caused by geometric error of machine tool, this paper proposes a geometric error identification and profile error simulation method. The identify method measures each axis of machine tool based on laser tracker, then using the least square method to fit the axis, as a result the coordinate system of each axis can be built. The geometric error of machine tool can be gained by analysis of the coordinate system. Building the kinematics model of large-scale multi-axis NC machine tool considered the geometric error, then using MATLAB and UG second development to achieve simulation of profile error.
Technique of Line-Carved Relief Editing Based on Mesh Feature Operations
Authors: Yuan Yuan , Liu Sheng Lan
Published: February 2012

A methodology of line-carved relief editing by mesh feature operations was proposed. Feature region of mesh model is firstly identified by curvature criterion. Secondly, profile lines are extracted by such feature operations as clustering, eliminating, retrieving and thinning of feature points. Thirdly, profile lines are optimized by trimming and smoothing operations. Finally, shape of carved curves could be edited by specifying the width and depth of profile lines, and a satisfactory line-carved relief is achieved by nonlinear compression.
Experimental Study on Adhesion of Oxide Scale on Hot-Rolled Steel Strip
Authors: Yu Xiang Long , Wei Dong Bin , Wang Xiao Dong , Jiang Zheng Yi
Published: February 2012

An experimental method was developed to study the adherence properties of the oxide scale formed on microalloyed low carbon steel after hot strip rolling. The evolution of the oxide scale during laminar cooling was investigated using Gleeble 3500 Thermal-Mechanical Simulator connected with a humid air generator. After the sample cooled down to ambient temperature, the oxide scale was protected by lacquer to prevent the scale from losing. Physicochemical characteristics of the oxide scale were examined and the adherence mechanism was discussed. Decomposed wustite a mixture of α-iron and magnetite (Fe3O4), can substantially improve the integrity of oxide scale. However, large quantities of hematite (Fe2O3) or retained wustite (FeO) were found detrimental to the adhesion of the oxide scale. It is found that the adherence of oxide scales significantly depends on the phase composition of oxide scales with different thickness.
Analysis on the Upholding Bracket for Bridge Fabricating System & the Building of its FEM Model
Authors: Li Quan Cai , Wu Cui Rong
Published: February 2012

Bridge Fabricating System is one of the most widely used large-scale machinery equipment in construction fields like highway, railway both at home and abroad. Through structural analysis on the bridge fabricating system, and build a finite element model with ANSYS, we can form a found- ation for Static Analysis for it.
A Rack-and-Pinion Pumping Unit Design
Authors: Peng Yong , Wang Lei
Published: February 2012

This paper presents a rack-and-pinion pumping unit. A type of SRD (switched reluctance driver) motor is utilized as the driving unit of the pumping unit. The rotation direction of the output shaft of the motor can change automatically, without reversing mechanism，so it can directly dive the gear box and then drive the rack-and-pinion in which the rack connected with the suck rod. Additionally, a super capacitor unit and control unit of charge and discharge is used to design the balance of the pumping unit. Due to the special balance design and no crank-rocker mechanism in the rack-and-pinion pumping unit, it has features of simple structure, less floor area, well balanced and high running efficiency. The most important is that the stroke and number of punching can be adjusted in a wide range which can adapt to different oil wells.
Modifing PET Fabric Surface with Peanut Protein
Authors: Zhang Gang Xian , She Zhong Li , Zhang Feng Xiu , Wu Da Yang
Published: February 2012

The poly(ethyleneteraphthalate)(PET) fabric was semi-encased sucrose ester at high pressure and high temperature to endue it enough –OH, and then the PET fabric was modified with peanut protein through crosslinkage. The FT-IR spectra showed the peanut protein was grafted on PET fabric, the X-ray diffraction spectra showed the structure of grafting peanut protein was random coin, and DSC thermograms showed the thermostability of PET fabric grafted peanut protein kept very well. The wearability of PET fabric grafted peanut protein was measured too. The results showed the hydrophilicity and antistatic property of fabric was improved greatly, the cockle elasticity and broken strength kept very well. Though the whiteness of fabric decreased after grafting peanut protein, it could be bleached with normal method. These showed the PET peanut protein composite fabric was high functional.
FEM Simulation of Different Loading Pressures on T-Tube Hydroforming
Authors: Chen Ji Ping , Qian Jian Qing , Li Sheng Zhi
Published: February 2012

The finite element simulation of T-tube hydroforming process is conducted with the FEM software Pam-Stamp 2G 2005. The results of numerical simulation and experiment are compared and analyzed. The tube hydroforming simulations under various internal pressures of constant pressure load path are also conducted. The simulation and experimental results of T-tube hydroforming are compared. The results show that the tube wall thickness distribution is more uniform and the hydroforming effect is more ideal in T-tube hydroforming process with constant pressure load path. The constant pressure load path of T-tube hydroforming is relatively easy to implement in the practical production process. Of the four constant pressure load paths of T-tube hydroforming, the simulation result under constant pressure 150MPa is most ideal.
Analysis of Radial Strain Distribution in the Metal Spinning Process by Taguchi Approach
Authors: Šugár Peter , Šugárová Jana , Zemko Peter
Published: February 2012

The paper presents the results of radial strain distribution measurement throughout the part after multi-pass conventional metal spinning by the circle grid analysis method. The influence of the mandrel speed, workpiece geometry and planar anisotropy of material on the radial strain was studied. For experiment design, an orthogonal array L27 was used and ANOVA (Analysis of Variance) was carried out. Based on the results it is determined that the sequence of factors affecting radial strain corresponds to geometry of spun part, mandrel speed, planar anisotropy of the sheet. In particular, it is found that the workpiece geometry (specific areas of spun part: mandrel/workpiece radius, conical area, cylindrical area) is the most important factor which influences the radial strain of the spun part.
The Influence of Compressive Pressure in the Thickness Direction on Spring-Back for Aluminum Alloy
Authors: Lu Hong , Huang Wen
Published: February 2012

This study evaluates the effect of the compression between the punch and the die on spring-back after the punch reaches the dead point. Utilizing the elastic-plastic FEM, the forming and spring-back process of aluminum alloy V-shape sheet is simulated. The investigation is also carried out through experiment. It is shown that spring-back decreases as the ratio of the average pressure and tensile strength increases when the ratio is small; Spring-back increases slightly as the radius of the punch increases from 8mm to 16mm. The results of the 2D plain strain element are in good agreement with the experiment results.
Effects of Technical Parameters on Initial Silicon Melting in Round Cold Crucible Continuous Casting
Authors: Chen Rui Run , Huang Feng , Guo Jing Jie , Ding Hong Sheng , Su Yan Qing , Yang Jie Ren , Fu Heng Zhi
Published: February 2012

The effects of technical parameters on initial silicon melting in cold crucible continuous casting were studied. These parameters include the materials, the shape and the position of the base, the mass of the silicon that set on the top of the base. Through experimental and theoretical analysis, the optimized parameters were finally given: the base graphite with obconical shaped should be put at the level of the second turn of the coil, and the initial silicon with 10g should be put on the base. The mechanism of these parameters affecting on the initial melting are discussed and revealed.
Morphology and Tensile Behavior of 2024 Al Alloy Objects Fabricated by Uniform Droplet Spraying Deposition
Authors: Wang Peng Yun , Li He Jun , Qi Le Hua , Deng Hai Liang , Zuo Han Song
Published: February 2012

A metal rapid prototyping technique, uniform droplet spraying, is utilized to fabricate 2024 Al alloy objects. Molten droplets are generated by drop-on-demand mode and deposited onto a zigzag moving substrate, which produces objects with different side surfaces. The tensile strength of the deposited specimen is 180.5 MPa, with elongation to fracture of ~8.2%. The fracture surface of deposited specimen presents two regions, namely, rough region and smooth region. The smooth region initially cracks under tension load, and the rough region presents many elongated dimples, indicating a ductile shear fracture. This unique tensile behavior could be attributed to weak metallurgical bonding between droplets and the special movement of substrate.
Real-Time Generation of Cutter Location Curves for Pen-Cutting of Sculptured Surface
Authors: Meng Shu Yun , Zhao Dong Biao
Published: February 2012

An algorithm is proposed on the real-time generation of cutter location curves for pen-cutting of sculptured surface. First of all, the parameter of driving curves can be calculated based on Taylor series expansion according the kinematics and geometric relation between cutter contact loci and driving curves. Cutter contact points on the surface can be achieved. Then cubic B-spline curves are used to fit the ideal cutter location curves. Examples and analysis results have indicated that the algorithm can realize the regeneration of tool path, simplifying the NC programming and improving the precision of sculptured surface machining.
Study of Large Castings Lost Foam Online Non-Contact Detection
Authors: Li Zhan Guo , Zhang Xue Chen , Shi Yao Chen
Published: February 2012

This paper aimed at traditional large casting with lost foam detection which has slown speed and low efficiency problems, developed a new non-contact detection method which combined digital close range photogrammetry measurement techniques and grating projection measurement techniques, fulfilled a car wind screen board lost foam 3272mm x 1205mm x 555mm online detection, has produced non-contacted online detection method. The results showed that method with fast detection speed、high efficiency, and can satisfy the large castings lost foam online non-contact detection requirements.
An Accurate Calculation of the Elongation of Strip in Tension Leveling Process
Authors: Zhao Pei Jian , Zhou Cun Long , Li Wei Na , Huang Qing Xue , Shuang Yuan Hua
Published: February 2012

In the tension leveling process, calculation of the strip elongation by the traditional method only considers the extension rate after the tension response, while ignoring elastic bending recovered, so the calculation of elongation is large enough to affect the process control accuracy. This paper considers not only the residual strain after elastic bend recovery, but also the affection of the residual deformation under plain cross-section assumption. The calculation of the elongation is less 4-10% than that of the traditional one. It shows that parameters of the tension leveling process set by the new method will be calculated accurately.
Research on Carbon Fiber Reinforced C/Cu Composites
Authors: Ran Xu , Liu Run Hong , Zhang Dong Dong
Published: February 2012

Through to the research of technological parameter of copper plating on the surface CF, determining the best parameters: electroplating current is 200 mA, electroplating time is 1 h. Using vacuum hot-pressing sintering to make different composition sample, the sample organization been done the SEM microscopic analysis, and measured micro-hardness and density. Then doing comparative analysis. In the matrix, CF was found to be homogeneously dispersed into the metal matrix, increasing the density of the sample.
Morpholog and Conductivity of High-Solid Content Waterborne Polyurethane Dispersions with Sulfonated Polyol and Carboxylic Polyol as Compound Hydrophilic Chain Extender
Authors: Wei Xiao Li , Zhang Fa Xing , Cheng De Jun
Published: February 2012

In this study , a type of compound hydrophilic chain extenders composed of a polyol containing short sulfonated side chain ,designated as DHPS and dimethylolpropanoic acid( DMPA), were used to prepare high-solid content waterborne polyurethane by self-emulsification .The effect of ratio of DHPS and DMPA on morpholog and the particle size of waterborne polyurethane were analyzed. The effect of ratio of DHPS and DMPA ,the addition of CaCl2 solution and HCl solution ,dilution on conductivity of waterborne polyurethane were investigated. The results show that the WPU dispersions exhibit the spherical particles and the characteristic of wide size distribution, the average diameter and distribution became smaller and narrower with the ratio of DHPS and DMPA increasing. With an increase of ratio of DHPS and DMPA conductivity increased. At the same time , conductivity changed with the addition of CaCl2 and HCl solutions content.
Research on Power Ultrasonic Vibration Honing of Sintered Nd-Fe-B
Authors: Shao Yun Peng , Zhu Xi Jing , Wang Ai Ling , Liu Zhen
Published: February 2012

The technology of power ultrasonic vibration honing was used for the brittle hard sintered Nd-Fe-B materials in this paper. The feasibility and correctness of machining process was analyzed through experiments. Compared normal process result with orthogonal experiments, it was better to use power ultrasonic vibration honing to obtain parts with less surface roughness and higher material removal rate, and also the optimal processing parameters can be conduct. Therefore, the power ultrasonic vibration honing can be used to improve workpiece surface quality, as well as processing efficiency, precision, which is an effective method for precise machining of sintered Nd-Fe-B materials.
Effect of Solid Content on Performance of Porous Alumina Ceramic by Gel-Foaming
Authors: Chen Xing Xing , Du Jing Hong , Gan Guo You , Yan Ji Kang , Yi Jian Hong
Published: February 2012

Porous alumina ceramic was prepared using sodium dodecyl benzene sulfonate (SDBS) as foaming agent by the combination method of gel casting and foaming. The effect of solid content on the line shrinkage rate, the porosity, the fracture strength and the microscopic structure of porous aluminum ceramic were studied. The result showed that when solid content increased, the line shrinkage rate of porous alumina ceramic decreased form 20% to 1.2%, the total porosity first increased and then decreased from 43% to 57%, the fracture strength first decreased and then increased from 23MPa to 41MPa. SEM indicated that alumina ceramic had more open pores when solid content was too low, the number of closed pore increased along with solid content rising, when solid content was too high, pore size distribution uniformity decreased.
Sintering Behavior and Dielectric Properties of BZN Ceramics Coated by Precursor Solution of CuSO4
Authors: Li Qian , Jin Biao , Huang Jin Liang , Gu Yong Jun , Li Li Hua , Yan Zhong
Published: February 2012

(Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 (BZN) ceramic samples were prepared by solid state reaction, In order to reduce the sintering temperature of BZN ceramic we have used liquid coating technology to dope CuO by precursor solution of CuSO4. The sintering behavior, microstructures, phase structures, and dielectric properties were studied. The process reduces the amount of sintering aid and minimized the negative impact of sintering aid on dielectric properties. A ceramic composite which could be sintered well at 900°C and showed good dielectric properties of εr=161,tanδ=0.005 and TCF=-398ppm/°C（1MHz）was obtained when 0.5mol/l CuSO4 was added to the (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 ceramic.
Preparation and Characterization of Manganese Doped ZnO Varistors
Authors: Zheng Jian San , Zhu Shao Feng
Published: February 2012

In this paper, the influences of MnO2 and V2O5 on the varistor properties of ZnO- V2O5-based ceramics were examined. The results show that, the addition of MnO2 to the ZnO-V2O5-based ceramics was found to improve varistor properties. The sintered temperature was benefit to enhancing the growth of crystals of the samples and the non-ohomic coefficient can be improved. The samples have non-ohmic coefficient α=27.8 and varistor voltage U1mA=60.9V/mm when they are sintered at 1100°C with 2 hours.
TiB2 Ceramic Tool Turning 45# Steel Experimental Study
Authors: Zhang Xiao Bin , Chang Xia , Han Fu Hui , Huang Wei Jiu
Published: February 2012

By using ordinary lathe, carried out cutting experimental study with cylindrical turning 45# steel on TiB2 ceramic cutting tool. By using Stereo Microscopy and Scanning Electron Microscopy, recorded cutting tool surface’s friction and wear conditions. The results showed that higher cutting speed could made surface roughness decrease and surface quality better; TiB2 ceramic cutting tool’s wear mechanism was abrasive wear, aoxidation wear; wear of blade tip and main flank face were more serious.
Design and Manufacturing of Large Amusement Devices for Performance and Reliability with Qualitative Reasoning
Authors: Zhou Ye , Wang Wei
Published: February 2012

Everyday engineering work is rife with uncertainty and complexity. Some of the uncertainty stems from highly variable natural phenomena such as wind and earthquakes. More prevalent is the uncertainty that arises from a simple lack of knowledge, especially in complex problems. This paper describes the key considerations of designing, manufacturing, and installing large amusement devices, with characteristics complex and uncertain by nature. A range of techniques for engineering decision-making and reasoning in the presence of uncertainty and complexity are described. The techniques may be applied throughout the design and manufacturing process, but are particularly effective in the early or conceptual stages, which are characterized by greater uncertainty than the latter design phases. The techniques described include qualitative reasoning, adaptive interval plotting, design space mapping, and design space reliability estimation. These methods allow the engineer to solve and visualize the design space. In contrast to engineering problem-solving approaches which find a single point configuration, a design space may include a large number of feasible solutions. The range of solutions may be used effectively in engineering decision making.
Analysis of the Current Situation of the Geological Relics Classification System
Authors: Yang Yan , Tian Ming Zhong , Xu Rui Gao
Published: February 2012

Abstract.Based on the analysis of the concept and features of geological relics, this paper summarized the classification situation of Geological relics at home and abroad：there is no final conclusion, being in the stage of active exploration and development. There are several kinds of taxonomic hierarchies abroad, such as the American standards classification, UNESCO classification, and the British standards classification. Profound research concerning the classification of the geological relics has been made in the Chinese geological field. The author thinks that the basic scheme of classification which is put forward by Chen An-Ze and the China national geological park construction technical requirements not only includes all types of geological relics but also can be readily accepted by and easy for operation. To master the correct classification of the geological relics is favourable to the effective protection, rational exploitation and the Sustainable Development of geological relics.
Synthesis of LiCl Doped Hollow TiO2 Nanofibers via Electrospinning and Their Humidity-Sensing Properties
Authors: Huang Hui Min , Yu Jie , Wang Ce
Published: February 2012

LiCl doped titania (TiO2) hollow nanofibers were prepared by using polylactide (PLA) nanofibers as templates. The morphology and crystal structure of the TiO2hollow nanofibers were characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The as-prepared LiCl doped TiO2hollow nanofibers exhibited a good humidity-sensing property. During the relative humidity (50%-95%) measurement, the response and recovery time is about 3 and 4 s, separately, with good linearity. The relationship between the humidity-sensing properties and the structure of the hollow nanofibers was also discussed. These distinguished and sensitive sensing performances make this material a good candidate in fabricating humidity sensors.
Preparation and Microwave Absorption Properties of Glass Beads /Carbon Fiber with Electro Less Ni-Plating
Authors: Wang Si Jie , Zhang Wei , Zhao Yang
Published: February 2012

The electroless Ni-Plated technique was used to fabricate the coupled and activated Glass beads /Carbon Fiber. The microstructure of Ni-P-GBs/CFs was analyzed by IR, SEM, EDS, and the microwave absorption properties were characterized by Vector Network Analyzer. The results showed that Ni-p alloy layer is dense and continuous after electro less plating. When the mass ratio is 3:2(GB/CFs), and mass percent of mixed dusty materials is 22.5%, the average loss value is lower than -5 dB in the frequency range of 2～18 GHz, while the greatest loss value is up to -12.4dB in the 15.1 GHz.
Synthesis and Luminescent Properties of Doped Europium Complexes with 2, 3 - Pyrazine Dicarboxylate
Authors: Kong Kai , Zhang Hai Xia , Li Huan Huan , Pang Juan , Chen Ying Nan , Li Yuan , Lin Xue Mei , Chu Hai Bin , Zhao Yong Liang
Published: February 2012

Eleven europium complexes doped other metal ions with 2,3 - pyrazine dicarboxylic acid had been synthesized and characterized by elemental analyses, rare earth EDTA titration, IR, UV and fluorescence spectra. They were EuL1.5•5H2O, Eu0.5Ln0.5 L1.5•5H2O (Ln3+=La3+, Y3+, Gd3+), EuML2.5•8H2O (M2+= Mg2+, Ca2+, Sr2+, Ba2+, Co2+, Ni2+, Zn2+). Doped metal ions could enhanced the fluorescence of Eu3+ complex, and the order of the fluorescence enhancement was Zn2+>La3+>Gd3+>Y3+; Mg2+> Sr2+>Ca2+>Ba2+. And doped with Co2+ and Ni2+ made the Eu3+ luminescence quenched, which the luminous intensity was almost zero.
Influence of Eu2+ Doped Contents on the Spectroscopic Features of Sr2-X MgSi2O7:xEu2+
Authors: Guo Jia Zhe , Li Ya Dong , Huang Yan Lin
Published: February 2012

Silicate-based Sr2-xMgSi2O7:xEu2+(x=0.01, 0.03, 0.05, 0.07) phosphors were synthesized by the high temperature solid-state reaction method. Phase purity and crystal structure of the phosphors were characterized using X-ray diffraction spectrometer. The optical excitation and emission spectra of Eu2+ ion were measured using luminescence spectrometer and fluorescence spectrophotometer. The emission spectra showed a strong blue luminescence peaked around 470 nm, corresponds to the 4f65d1 →4f7 transition on Eu2+. Two different average decay time confirmed that the Eu2+ cations may occupy in two different lattice sites and presents different spectroscopic features. With a broad absorption band extending from 224 to 450 nm, it is suggestive that the phosphors have a potential application in UV-LED chips (360-400 nm).
Enhanced Two-Photon 3D Optical Storage in a Novel Multibranched-Dye Doped Photobleaching Polymer
Authors: Guo Fu Quan , Hu Ji , Guo Bin , Liang Hao
Published: February 2012

A novel multibranched nonlinear dye，4, 4´, 4´´-tris(9-carbazyl-trans-styryl) triphenylamine (TCSTPA)，has been designed and synthesized aimed at two-photon absorption applications. Two-photon absorption cross section of the multibranched dye was obtained as high as 2.35×10-47cm4s photon-1molecule-1pumped with femtosecond laser beam at 800 nm. One-photon and two-photon absorption optical properties were demonstrated in solutions. Three-dimensional (3D) optical data storage experiments were carried out by two-photon photobleaching in the multibranched-dye doped polymethylmethacryate (PMMA) with a 3D data storage density of approximate 14 Gbits/cm3. Research on the two-photon photobleaching ability shows the novel two-photon absorption dye with multibranched molecular motif has higher photosensitivity than traditional linear two-photon absorption dyes do.
The Mean Projected Range and Range Straggling of Yb Ions Implanted in Silicon Crystal
Authors: Qin Xi Feng , Wang Hui Ning , Ji Zi Wu , Wang Feng Xiang , Fu Gang
Published: February 2012

The mean projected ranges and range straggling for energetic 200 – 500 keV Yb ions implanted in single crystal silicon (c-Si) at room temperature were measured by means of Rutherford backscattering followed by spectrum analysis. The measured results are compared with Monte Carlo code (SRIM2010) predictions. Our results show that the measured values of the mean projected range Rpare good agreement with the SRIM calculated values; but the difference of the range straggling ΔRpbetween the experiment data and the calculated results is much higher than that of Rp.
Preparation and Performance Optimization of a Full Color Organic Light-Emitting Diodes Display Device
Authors: Cheng Shi Jun , Zheng Hua Jing , Jiang Quan , Yang Gang
Published: February 2012

A full color 2.2″ passive matrix organic light-emitting diodes (OLEDs) with 128 (RGB) * 160 pixels was developed. The display features that driving circuit can transform 18 bits gray-scale data from a PC to the OLED panel via a DVI channel. The size of the pixel was 240μm240μm, while that of mono sub-pixel is 190μm45μm. The lifetime of panel was estimated over 5000h because of the use of dual-scan driving technology, and the power consumption of the display was 300mw about when the average luminance of panel reach 40cd/m2.
Action of Magnesium on Carbide Spheroidization in Annealed Bearing Steel
Authors: Zheng Shao Bo , Gong Yue , Zhao Dan , Lu Qing Lin , Li Hui Gai
Published: February 2012

The effect of magnesium on the morphology and composition of the carbide in annealed bearing steel was studied. The morphology of carbide was observed and statistical analysis was carried out. The results showed that the non-uniform distribution of carbides in bearing steel was obviously improved with increasing the content of magnesium. Segregation thermodynamics indicated that the segregation of magnesium to grain boundaries prevented element such as Cr, C from enriching on grain boundary, which was helpful for the reduction of network carbide precipitation. The chemical analysis results proved this viewpoint.
Research of Ventilation and Dust Removal Technology for Whole Rock Fully-Mechanized Excavation Face
Authors: Zhou Gang , Wang De Ming , Cheng Wei Min , Pan Gang , Cao Sen
Published: February 2012

The whole rock fully-mechanized excavation with big cross section, high rock hardness and strong cutting intensity of fully-mechanized coal winning machine has a higher dust concentration than coal roadway excavation, so ventilation dust removal technology is in need in whole rock face. Based on the dust migration and distribution numerical simulation in whole rock tunnel excavation, optimization design of long pressing and short pumping hybrid ventilation and dust removal system were carried out. Eventually, the comprehensive dust prevention measures with air curtain closing dust source, dust electromotor exhausting dust and retaining curtain capturing dust were realized in this paper, which achieved a good removal efficiency of dust.
Prediction of Tensile Strength Based on RBF Neural Network
Authors: Li Hui Jun , Zhang Li
Published: February 2012

The objective of this research is to predict yarn tensile strength. The model of predicting yarn tensile strength is built based on RBF neural network. The RBF neural networks are trained with HVI test results of cotton and USTER TENSOJET 5-S400 test results of yarn. The results show prediction models based on RBF neural network are very precise and efficient.
The Crack-Tip Higher Order Fields of Linear FGM Plates with Reissner’s Effect
Authors: Dai Yao , Liu Jun Feng , Zhang Lei , Chong Xiao
Published: February 2012

The Reissner’s plate bending theory with consideration of transverse shear deformation effects is adopted to study the fundamental fracture problem in functionally graded materials(FGMs) plates for a crack parallel to material gradient. By means of the asymptotic expansion method, the crack-tip higher order asymptotic fields which are similar to the famous Williams’ solutions to homogeneous materials are obtained.
Feasibility Analysis of Development of Imitating Padauk Furniture Industry of Recombinant Bamboo
Authors: Liu Yun , Li Yong Chun , Fang Xue Bing
Published: February 2012

The new material recombinant bamboo has similar properties as padauk, and can draw experience from padauk furniture art that takes the way of the development of imitating padauk furniture. This essay starts from the background of the development of imitating padauk furniture industry of recombinant bamboo and illustrates the feature of recombinant bamboo and recombinant bamboo imitating padauk furniture, as well as the present development of industry. It makes an analysis of recombinant bamboo imitating padauk furniture industry from the three aspects of resource technology, social economy and ecological culture that the development in China has certain feasibility.
Post-Growth Assembly of Nanowires for Integration of Nanodevices
Authors: Liu Mei , Peng Yan , Wu Zhi Zheng
Published: February 2012

Efficient assembly of nanowires or nanotubes into functional nanodevices is one of the keys for practical application of the promising nanotechnology. Generally there are two ways for the assembly of nanowires or nanotubes: directed assembly during growth and post-growth assembly. The post-growth assembly technique is advantageous in some aspects comparatively for it puts little limitation on the nanowire or nanotube materials involved, and it can produce large nanowire arrays with better consistency. So this paper reviewed post-growth nanowire assembly techniques and discussed their advantages and shortcomings.
Nano-Crystalline Diamond Development and Application
Authors: Hua Li
Published: February 2012

diamonds have superior performance unmatched by other materials. The nano-crystalline diamond (nano-crystalline diamond powder and nano-crystalline diamond films) is a new construction material and functional material with diamond excellent properties and nano material characteristics. Such dual bizarre characteristics determine its wide application. The application developed predicts its sound prospects, which, however, requires researchers to conduct studies and development.
Effect of Vanadium on the Separate Out of Intragranular Ferrite
Authors: Gu Zhi Min , Zhang Qing Jun , Zhu Li Guang , Zhang Cai Jun , Wang Shuo Ming
Published: February 2012

From the viewpoint of oxide metallurgy and the impact of V on Steel organization, the morphology, size, distribution and composition of the inclusions in Steel after V deoxidation were studied by using optical microscopy and SEM, and organization changes of steel after adding V were investigated. The results of the experiment were showed that acicular ferrite was radially appeared at the core of small inclusions after adding V. Carbon, nitrides (VN, V3C4) of V can become nucleation of intragranular ferrite, which were small and dispersed. V could also refine the organization of steel.
Effects of Atmosphere on the Periclase-Hercynite Brick
Authors: Liu Meng , Li Yong , Ma Shu Long , Xia Wen Bin , Li Yan Jing
Published: February 2012

The periclase-hercynite brick performance after different re-firing cycles was researched under different atmosphere. The results are shown that under the oxidizing atmosphere, the brick after re-firing would lead to the mutual diffusion of iron ions in both magnesium substrate and hercynite particles, which would further lead to ring cracks around hercynite. After the brick was re-firing at CO atmosphere, the mutual diffusion of magnesium and iron ions was even more severe, which formed magnitude of magnesia-hercynites and magnalium spinels. SEM results are shown that the porous structure around the hercynite could damage more severe.
Surfactant-Assisted Hydrothermal Synthesis of Multilayered Flower-Like BiOBr with Enhanced Visible Light Photocatalytic Activity
Authors: Cao Yan Ming , Wang Fu Min , Jia Zhi Fang , Liu Ning
Published: February 2012

A novel multilayered flower-like structure of BiOBr was fabricated by mild and facile polyvinylpyrrolidone (PVP) K30-assisted hydrothermal method using stable, less toxic inorganic salts Bi(NO3)3•5H2O and NaBr as the starting materials. Such three-dimensional (3D) BiOBr assemblies were constructed layer-by-layer from a large number of two-dimensional (2D) nanoplates. Rhodamine B (RhB) photocatalytic degradation experiments showed that the BiOBr flowers exhibited higher visible-light photocatalytic activity than that of irregular BiOBr nanoplates. Therefore, the resulting flower-like BiOBr are very promising photocatalysts for the treatment of organic pollutants