bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated Product Development Using Different Collaborative Tools in a PLM Multisite Platform
Authors: Florica Stelian Cornel , Drăghici George
Published: August 2013

Usually in the automotive industry, minimizing design development costs and optimizing the communication processes between project teams are the most important topics related to the collaborative design process. New and competitive product design process needs the support of different applications that can facilitate the collaborative design process between team members. This could be reached only by using innovative design methods supported by PLM solutions. This article propose a method for reducing the time to make and to implement a modification on technical documentation due to different positioning on geographical areas of project teams by using different collaborative tools, like: Windchill software, smart boards and videoconferencing system.
Using a Systematic Innovative Approach – Acting/Support Matrix to Develop a Product
Authors: Taranovschi Iuliana Laura , Dușa Petru
Published: August 2013

This paper presents an example of using the innovative model developed by us in the context of self-managed team. The model has two matrices: Innovative Support Matrix and Innovative Acting Matrix. The Innovative Support Matrix is built on the selected nouns from the Bloom Taxonomy in the domains: Knowledge, Comprehension, Application, Analysis, Synthesis and Evaluation and may be assimilated as a guided tool in the documentation phase of the innovation process. The Innovative Acting Matrix is built in a similar manner as Innovative Support Matrix but by selecting the verbs from the same domains. The verbs from the Innovative Acting Matrix play the role of stimulants for the innovative team members. A template was developed to guide the team in using the innovative model.
Multiwall Carbon Nanotube Reinforced Aluminum Matrix Composites Prepared by Ball Milling
Authors: Ahn Jung Ho , Kim Yong Jin , Yang Sang Sun
Published: August 2013

In the present work, we employed low-energy ball milling in dry and wet conditions to synthesize Al-MWCNT composites with homogeneous distribution of reinforcing phases. Dry ball milling easily resulted in the collapse of MWCNTs as well as a cold welding of constituent particles. Wet milling, on the other hand, induced a homogeneous distribution of MWCNTs and matrix phase. However, the oxidation of aluminum which results in a poor sinterability, was a major problem in wet milling. The optimum content of MWCNT in the composites was 0.5 and 1 wt% for dry and wet milling, respectively.
Size Control in ZnO Nanopillar Fabrication Using a Gel-Nanoimprint Process
Authors: Ishikawa Yasuaki , Araki Shinji , Zhang Min , Uraoka Yukiharu
Published: August 2013

We evaluated size controllability and size error occurrence in fabrication of ZnO nanopillar pattern by gel-nanoimprint process. The ZnO nanopillar patterning yielding smaller size error than the conventional nanoimprint process was achieved. The UV-O3treatment was also proposed to make precise patterning, but we found that this treatment could not hold the nanostructure patterned, though the clear shape could be obtained just after the treatment.
Stress Relaxation Behavior of Catheter Reinforced with Braid under Combined Loading for Bending and Torsion
Authors: Kato Yasuyuki , Ueda Masahito
Published: August 2013

The purpose of this research is to examine the physical property of the catheter, which made of soft nylon resin and is reinforced with thin stainless wires called braid. The effect of braid on the mechanical property of the catheter is revealed by investigating the relationship of the stress relaxation and the relative angle between the braid and the principal axis of stress under combined loading of bending and torsion. Inthe first place, in order to investigate the phenomenon of stress relaxation under combined loading, the experiments under single stage step strain have been carried out by changing the ratio of bending and torsion, and the relation between the coefficient of viscosity and the relative angle of the braid is revealed. In the second place, the experiment under two-stage step strain are conducted by changing the order of bending and torsion, and the effect of these loading histories on the visco-elastic properties is examined. Moreover, the numerical simulation under two-stage step strain is carried out by using the estimated coefficient of viscosity, and in this paper, the validity of this analytical model is confirmed by comparing with the experimental results.
Monitoring the Coating Thickness of Pharmaceutical Tablets with MaxGWMA Control Chart
Authors: Nguyen Thanh Lam , Shu Ming Hung , Hsu Bi Min
Published: August 2013

So as to monitor and detect small shifts in the mean and variability of a manufacturing process, exponentially weighted moving average (EWMA) control charts are widely employed. Some of its extensions have been proposed to improve its performance. Among them, the Maximum generally weighted moving average (MaxGWMA) control chart is found as the superior. In the industry of coating pharmaceutical tablets, controlling the thickness of the coating layer containing active pharmaceutical ingredients is of great importance and in order to keep track on the coating quality, various methods using modern technologies have been proposed. However, decision support systems on the status of the coating process are not fully developed. Hence, in this study, MaxGWMA control chart was proposed to monitor the coating thickness of the tablets so that any small shift in the coating process can be quickly detected and further corrective actions can be implemented to make the process in control.
Flow Analysis of Melted Urea in a Perforated Rotating Bucket
Authors: Muhammad Aadil , Rahmanian Nejat , Pendyala Rajashekhar
Published: August 2013

A comprehensive study of the internal flow field for the prilling application in a perforated rotating bucket has been carried out. Computational Fluid Dynamics (CFD) is used to investigate the flow field of urea melt inside the perforated rotating bucket. The bucket is mounted at the top of the prilling tower. In prilling process, urea melt is sprayed by the perforated rotating bucket to produce the urea droplets, which falls down due to gravity. These drops fall down through a cooling medium and solidify into prills. The velocity field in the bucket is very important to study, as it has great effect on the heat and mass transfer performance in prilling process. ANSYS 14.0 CFD package is used to simulate and Design Modeler and Catia V5 are used for geometrical model of the perforated prilling bucket. Velocity distribution on different planes are obtained and discussed.
R&D of a New De-Icing Device Based on Synthetically De-Icing Techniques
Authors: Zhou Jian Zhao , Xu Xiao Pan , Chu Wei Jun , Dai Ju Ying , Chen Yun He , Zhu Zi Cheng , Lai Si Wei
Published: August 2013

The thermal water-jet technology and mechanical milling method are comprehensively applied in the design of the new de-icing device. These two kinds of de-icing methods are combined as a set of multi-functional system, in which the thermal water jet cuts the ice layer into separated sections, and then the mechanical milling unit can easily remove the remaining sections. To obtain the affecting factors in the new de-icing device, repeated indoor experiments were conducted and the data was analyzed, which would provide some theoretical references to further optimize the design.
The Mechanism of Quasi-Dynamic Expansion Method and the Design of the Equipment for Manufacturing Biaxial Oriented PVC Pipes
Authors: Zhang Xin , Wu Da Ming , Liu Ying , Song Guang Jun
Published: August 2013

Due to the biaxial oriented PVC (PVC-O) pipes have a great improvement in the strength, heat resistance, modulus, and impact resistance, etc. So the new products can be used in many situations. Referring to the foreign Mouth die drawing method, the mechanism of quasi-dynamic expansion method is proposed in the paper. We chose the hard polyvinyl chloride (PVC-U) pipes for raw materials, through the forward movement of the pipe match with the vertical reciprocating movement of the expansion parts, improve the design of a whole package of biaxial oriented self-reinforced pipe continuous production device. The device has great advanced properties: small expansion friction resistance, high hoop extension ratio, simple production device, production line is easy to start etc.
Stamp Tooling Application for High Power LED Packaging Fabrication
Authors: Zhao Zhan Feng
Published: August 2013

The high power light emitting diodes unit internal structure was elaborated from materials and tooling point of view, the unit matrix layout in copper frame for mass production was presented for fully automatic stamping. The processes and tooling stations were decomposed and optimized according to the formulated stamping sequences, facilitating the downstream packaging processes. The final leads bending and unit singulation mechanisms were proposed. The universal tooling design scheme for multiple material composed opti-electric units can be referenced for similar integrated functional devices.
Preparation and Testing of the Microstructure Diffuse Reflection Plate Based on the Continuous Extrusion
Authors: Wang Hai Jun , Wu Da Ming , Zheng Xiu Ting , Liu Ying , Jing Peng Sheng
Published: August 2013

The article introduces a kind of preparation process of the micro structure diffuse reflection plate based on continuous extrusion and proposes a new preparation process of diffuse reflection plate. The process mainly includes two single screw extruders which work by means of co-extrusion composite. Then polymer sheet is got through the roller via the thermal printing. At last the micro structure is pressed on the polymer sheet. The preparation of diffuse reflection plate is successful. We can measure the surface microstructure of diffuse reflection plate by using ContourGT-X3 that is made from Germany. The content of the measuring includes the 3 d shape, depth, diameter and uniformity of the micro structure. The article analyzes that the die temperature, rolling depression and roll speed have the influence on the diffuse reflection plate replication rate. The experimental result shows that the die temperature has little impact on the replication rate; Along with the increase of roller press, diffuse reflection plate replication rate increases; Along with the increase of the roller speed, diffuse reflection plate replication rate reduces.
A New Type of Feed Valve Design and Application
Authors: Liu Jun Xu
Published: August 2013

According to coal-fired power plant’s granulated powder preparation,storage and delivery processes, the existing problems of feed valves in the actual useing environment and job conditions.It was introduced to the principle about a new type of the feed valve,the form of structure and practical application.
Vibration Analysis and Improvement of a Vehicle Chassis Structure
Authors: Senthil Kumar M. , Naiju C.D. , Chethan Kumar S.J. , Kurian Joseph
Published: August 2013

Product development cycle time is very important in automotive industry which is very competitive nowerdays. New products are introduced into the market with better designs in short period of time by carrying out different engineering analysis. This study is focused on analyzing the existing chassis design and the noise, vibration and harshness(NVH) characteristics are studied. Modeling of chassis structure is carried out using 3D modelling package CATIA V5 and finite element model is created by meshing using Hypermesh software. The main objective is to find the natural frequency and analyse the mode shape of the automotive chassis structure. Results of the analysis will help to study the dynamic behavior of the chassis structure with load application/real road condition and to improvise the car chassis structure assembly.
Fault Diagnostic Equipment of Fire Control System Based on FTA
Authors: Yang Xiao Qiang , Han Jin Hua , Yan Jian Jian , Pan Yi
Published: August 2013

With regard to the disadvantages in maintenance support of fire control system , such as single function, poor versatility, low in test efficiency as well as poor reliability, a fault diagnostic test equipment is developed based on Fault Tree Analysis (FTA) and expert system. The fault tree is constructed with the failure of fire control system as top event. Then the qualitative analysis of fault tree is performed. The embedded equipment and industrial processing computer (IPC) are used in the design of hardware which is based on modular concept. The software of fault test equipment is modular and open-source and developed by LabWindows/CVI. In addition, if consists of multiple modules, such as system test, fault diagnosis, data management, self-test and others. Database platform of Oracle and expert system are combined in the storage of test and diagnosis result as well as the inference and troubleshooting of system fault. This work indicates that FTA is an effective mean in fire control system fault diagnostic equipment.
Numerical Simulation of Granite on Pre-Stressed Machining by Discrete Element Method (DEM)
Authors: Ye Yong , Kang Liang
Published: August 2013

The bonded particle model (BPM) of granite for pre-stressed machining is build by using the discrete element method (DEM). This model can not only descript the intergranular fracture behavior but also the transgranular fracture behavior of the granite. The processes of crack propagation under different pre-stressed machining conditions are studied by means of DEM simulation. Damages and cracks of surface/subsurface are also observed. The simulation results show that, while the magnitude of pre-stress is controlled in a certatin range, the number of radial cracks reduce as the increasing of pre-stress magnitude, contray to the transverse cracks. It could be seen that maching damage is decreased and surface quality is improved by applying the pre-stressed machining method, and the discrete element method is an effective way to simulate the machining process of granite.
Applied Research of ADSHPSO Algorithm in Multi-UAV Cooperative Mission Planning
Authors: Wang Xin Zeng , Xiao Jin Bao
Published: August 2013

The particle swarm optimization algorithm was improved in this paper, a novel self-adaption dynamic sub-swarms hybrid particle swarm optimization algorithm is proposed, in this algorithm, subgroup partition method based on dynamic clustering of particle adaptive value is adopted to divide particle group to different capability sub-group, then execute different optimize strategy to different subgroup, simultaneity, inertial weight and accelerating coefficient are adaptive set, through contacting adjustment of parameter with sub-group capability, the particle mode method and intersect and aberrance strategy of double deck are designed, The experimental results show that the algorithm has simple programming, good robust capability and strong optimizing capability which established the foundation of task planning of multi-UAV Cooperative.
Modeling and Control of Winding Hybrid-Driven Based Cable-Parallel Manipulator
Authors: Sun Hui Hui , Zi Bin , Qian Sen
Published: August 2013

This paper deals with modeling and adaptive fuzzy control of winding hybrid-driven cable parallel manipulator (WHDCPM). The WHDCPM has the advantages of both the traditional cable-parallel manipulator (CPM) and hybrid-driven based cable-parallel manipulator (HDCPM) since the hybrid-driven planar five-bar mechanism in HDCPM is replaced by winding hybrid-driven five-bar manipulator in WHDCPM. The physical architecture of WHDCPM is determined, and kinematics and dynamics of the cable parallel manipulators have been studied based on Lagrange method. The numerical simulation is demonstrated as an example with adaptive fuzzy control theory, and the diagrams of trajectory tracking, cable tension, friction compensation and motor torque are shown, respectively. The results demonstrate the feasibility and superiority of the WHDCPM.
Simulations Research on Smith Predictive Adaptive Fuzzy-PID Compound Controller in the Temperature Control System of Microchip Level PCR Instrument
Authors: Liao Hong Hua
Published: August 2013

Study on the temperature controlling optimization problem of a novel microchip level PCR instrument, a compound control scheme based on Smith predictive and adaptive Fuzzy-PID is presented. Because the temperature control system of microchip level PCR instrument is a time-varying, non-linear and pure time delay complex system, to achieve the different temperature zones rapid switching and the temperature precision controlling is easy to be affected by time delay factor, it may encounter problems such as large overshoot, and even poor stability in the control of system with time delay. In this system, Smith predictable compensation control temperature algorithm should be adopted to decrease the overshooting and oscillating, adaptive Fuzzy-PID control temperature algorithm should be adopted to solve the problem of low precision and poor capability because of the fuzzy rules roughness. The simulation results show that the Smith predictive adaptive Fuzzy-PID temperature control algorithm has the fast response, high precision temperature controlling and strong robust properties, and it can provide a reference for the intelligent temperature control system design of microchip level PCR instrument. Keywords: Microchip level PCR instrument; Smith prediction; Adaptive Fuzzy-PID controlling algorithm; Temperature control system
Improvement of the Fast Out-of-Step Separation Criterion in Electric Power System
Authors: Yang Yuang , Yang Ming Yu , Xiang Li , Ding Mao Sheng , Song Yun Ting
Published: August 2013

It studies the changing regulation of fast out-of-step separation criterion based on equivalent two-machine power system. Analysis of the characteristics of the caring variables of fast out-of-step separation criterion on sending end and receiving end is mentioned. In order to solve the problem that the out-of-step connecting line cannot be identified correctly apply on the criterion of the existing fast out-of-step separation if the measurement point at the receiving end, it improves the power angle and active power criterion. The simulation is carried out in our actual grid model with using BPA and the results of the simulation handled by MATLAB proves that the out-of-step of line can be distinguished by using the improved fast out-of-step separation criterion in each end of line.
Application and Benefit Analysis of Facility Intelligent Control System
Authors: Xu Zhi Fu , Sun Li Ping , Shi Xiao Yan , Ye Hong Bao , Li Dong
Published: August 2013

Intelligent control system of greenhouse based on a technical architecture, which combined with the GPRS/GSM wireless communication module and PLC. The system uses the microcomputer to collect information, GPRS/GSM to communication, PLC to control and other technologies. It realizes the comprehensive environmental dynamic optimization balance control of greenhouse group, temperature, light, water, fertilizer and other environmental factors as the control object. The system saves the cost of production and reduces the pollution of farmland, to achieve high yield, high quality, generate significant economic and ecological benefits. The system improves the level of agricultural production management informationization, automation, modernization of Zhejiang, and have low operation cost, synchronously promotes the agricultural synergism, farmer's income and rural development. Keywords: GPRS/GSM; PLC; facility agriculture, intelligent control, benefit analysis.
Design of Tiny TTY for ARM Based Multi-Process Mono-Kernel
Authors: Qu Bo
Published: August 2013

This paper describes the design and implementation of tiny TTY for an ARM based multi-process mono-kernel, including overview of TTY, and implementation of the TTY routines such as data structure of TTY, TTY input, TTY read, TTY write, TTY waiting and TTY signal setting. A demo example is also provided at the final of the paper to show the effect. The mono-kernel is developed by the author of this paper on Linux with GNU tool chain from scratch, for which the tiny TTY is designed. Based on this mono-kernel, other components can be added such as file system, network management, etc. to form a more powerful embedded operating system.
Application of SARIMA Model in Cucumber Price Forecast
Authors: Luo Chang Shou , Zhou Li Ying , Wei Qing Feng
Published: August 2013

The price of vegetables is difficult to predict. In order to find an effective method, this paper fully considers the seasonal variations, and uses the seasonal auto regressive integrated moving average model （SARIMA） to forecast the cucumber price. The experimental results indicate that the SARIMA(1,0,1)(1,1,1)12 fits the cucumber market prices exactly in the previous months. Its average fitting error is 17%. The forecast data of twelve months in 2011 is in line with the actual trend. Its average error reaches 25%. The SARIMA model is feasible for short-term warning of vegetable price.
Research on Code Obfuscation Based on Maze Protection Technology
Authors: Wang Zhi Yue , Wu Wei Min , Ma Wen Rui , Li Jin Liang , Huang Zhi Wei
Published: August 2013

In view of the increasingly serious software protection problem, the software protection technology based on code obfuscation is analyzed and researched, and a new software protection system, maze protection is designed and realized. With the principle of maze encryption, this program insert a large number of the complex judgments code between function entry and exit, which change the execution order, enhancing the ability of software protection. On this basis, Anti-debug techniques incorporated into the maze protection, which against the mainstream anti-debugger, increasing the advantage of high anti-reversing, tamper-proof and anti-cracking. Experimental analysis has proved that this maze protection technology was better than other virtual machine protection technologies.
Study on Four-Level Emergency Rejuvenation for Survivable System
Authors: Zhao Guo Sheng , Wang Jian , Li Lin , Zhang Nan
Published: August 2013

A method of four-level emergency rejuvenation for survivable system was proposed. Firstly, failure models of survivable system were formally described based on stochastic Petri nets, in which a number of measurable index parameters for rejuvenation were also given out. And then a four-level recursive emergency rejuvenation strategy was presented based on system-level, service-level, process-level and thread-level, the computing process of rejuvenation priority is also defined and the chain of rejuvenation is obtained. Eventually, the implementation process of four-level autonomous emergency rejuvenation strategy was described using stochastic Petri nets. Compared with the traditional cyclical recovery strategy, the proposed method reduced the time and costs of emergency recovery, and enhanced the recoverable elasticity of survivable system.
Based on Teach-Practice Study Mode Practice Learning Platform Design and Implementation - By the News Photography Course as an Example
Authors: Song Jian Shen
Published: August 2013

With the advent of the Web2.0, more and more people use modern information technology in education field, make education realizes the informationization, intellectualization of new education form. Build the course practice platform is to introduce the information technology into the professional knowledge learning, providing students with fast, efficient learning resources and the environment ,at the same time improving the professional knowledge level of the students and the ability to practice and practice. Based on the news photography course, this paper discussed the necessity to establish the course practice platform and analyzed platform development and implementation process in detail.
A Trust-Aware and Location-Based Secure Routing Protocol for WSN
Authors: Zhou Yi Min , Li La Yuan
Published: August 2013

The Wireless Sensor Network applications has widely been used over the last few years. WSN is a novel self-organization wireless network which is made up of randomly distributed sensor Nodes. Due to some resource constraints, the design of security in WSN encounters a great many of new challenges. It is vulnerable to attack, which is harmful for availability of WSN. In this paper we propose a trust-aware and location-based secure routing protocol which protects WSN against routing attacks, and also supports large-scale WSN deployments. The proposed protocol is extended from GPSR protocol, which imports security mechanism that depends on a distributed trust management system. The solution has been shown to efficiently detect and avoid malicious nodes.
Effect of Newly Developed Balance Training System in Patients with Stroke
Authors: Ko Myoung Hwan , Park Byung Hyun , Chong Woo Suk , Lee Sun Yeon , Kwon Tae Kyu , Park Jong Kwan
Published: August 2013

The purpose of this study was to evaluate the effect of newly developed balance training system (I balance S®) in chronic hemiplegic patients. Thirty chronic (more than 6 months) hemiplegic patients who were capable of standing without assistive devices participated in this study. The study started with “pre-evaluation” such as Berg balance test (BBT), 10 m walking test (10mWT) and Functional reach test (FRT). After pre-evaluations, balance training was applied for 4 weeks. And then, three phases of post-evaluation were performed, just after (post 1), 1 week (post 2), and 4 weeks (post 3) after treatment. All subjects showed a significant improvement in BBT (52.19±3.87 (pre), 53.12±3.14 (post 1), 53.38±2.99 (post 2), 53.65±2.90 (post 3)), 10m WT (9.93±2.36 sec, 9.56±2.53 sec, 9.30±2.25 sec, 9.16±2.62 sec, respectively) and FRT (19.33±4.99 cm, 21.55±4.57 cm, 21.98±4.69 cm, 21.83±4.84 cm, respectively) after training compared to the status before training. The hemiplegic patients trained by I balance S® showed a significant improvement in BBT, 10mWT and FRT after training. In addition, this effect lasted for 4 weeks. Therefore, newly developed balance training system (I balance S®) is considered to be a useful tool for balance training of chronic hemiplegic patients.
Implementation of Dynamic Simulation System on Six DOF Industrial Robot
Authors: Liu Qiang , Han Yu , Liu Min Hao , Tian Shang Fei
Published: August 2013

A dynamic simulation system whose model objects were industrial robot was designed. An advanced and quickly inverse kinematic algorithm was used to solve inverse kinematic equation for 6DOF industrial robot, the time of solve was improved. The method of trajectory planning was developed. The vision simulation for industrial robot was completed by Creator and Vega software. Simulation result shows that the requirement of kinematic control has been achieved and provides an intuitive and convenient tool for research of the kinematic control algorithm for industrial robot.
The Tapping Machine Mathematical Modeling Simulation Study
Authors: Jiang Bing Hua , Fang Li , Guo Hang Biao
Published: August 2013

Based on the tapping machines special structural features and practices, from both directions of rotation and impact established the tapping machine mechanism rotating borer and impact dynamic mathematical model, analysed the effect of different tapping machines parameters on the model itself, simulated the model with inputting wide pulse signal, the simulation results show that: firstly, the tapping machine model established in this paper is reasonable; secondly, increase the damping coefficient of the blast furnace, the tapping machines rotating borer rotation speed and impact attenuation speed decrease.
A New Real-Time Iteration Method Based on Geometry for Inverse Kinematics of Truck Mounted Concrete Pump
Authors: Chen Long An , Shen Ying Jie , Mi Zhi Nan
Published: August 2013

A new iteration method based on geometry to solve the inverse kinematics for the boom system of truck mounted concrete pump, which is difficult to real-time control since its degrees of freedom are multiple-redundant, is presented. This method uses a variable-step size technique to approach the solution of the inverse kinematics, and uses geometry to determine how much angles of joint to change and its direction. Comparing with the traditional methods, this method is more suitable for real-time control of truck mounted concrete pump boom system without calculating the inverse matrix of jacobian. By the method the movement of boom will be safer and more stable when pumping concrete. Simulation results show that the new method has a fast convergence speed and good stability.
Research on the Dynamic Model and the Characteristics of Brown Rice Humidifier Ventilation Countercurrent Moisture Conditioning
Authors: Yang Song Hua , Men Yan Zhong
Published: August 2013

The safety storage of rice or brown rice moisture content is below 14% ,hardness and brittleness is larger to low moisture content of brown rice, the crack in the manufacturing process of milling rice and broken rice rate is higher, milling processing energy consumption to increase, and the rice surface roughness is low .In this paper, using mathematical simulation method based on the theory of the humidifying, thin layer of humidifying dynamics model is established, and brown rice humidification conditioning properties are studied. Results show that the unit heat consumption is reduced with the increase of air temperature,humidifying rate increases, the bread machine temperature linearly increases; With the increase of wind speed, unit heat consumption increases, humidifying rate increased.
The Dynamic Analysis of Humanoid Robot System
Authors: Hwang Yunn Lin , Chen Chien Hsin , Hwang Shen Jenn , Xuan Mai Nguyen
Published: August 2013

The main objective of this paper is to simulate the mobility of humanoid robot. Simulation method implemented by using RecurDyn, one can analyze the kinematics and dynamics of BIOLOID humanoid robot. Moreover, the analysis of mobility will be discussed. In this paper, the Zero-Moment Point and Forward Dynamics methods are also introduced to the dynamic analysis of humanoid robot. Finally, the simulation results show that the algorithms developed in this paper can efficiently enhance the stability of the humanoid robot.
Implementation of a Wireless Strain Collection Terminal
Authors: Zhao Jun Hua , Liang Jun , Han Xian Quan
Published: August 2013

In order to resolve the problem of complex wire routing, reliability and lightning-proof difficulty in automatic monitoring system of water conservancy engineering, the paper proposes a volume-compact, easily connected wireless strain collector. The collector modulates the differential strain signal by half-bridge and precise instrumentation amplifier, and employs an up-to-date RF system on chip to realize digitalization for analog voltage signal and wireless transmission. The wireless sensor nodes based on TI's Z-stack protocol possess high performances of network self-organization and network self-healing, and support low power consumption in wireless transmission by sleep mode.
Simulation of a Surface Acoustic Wave Methane Sensor
Authors: Sun Ping , Feng Xing , Ou Zhong Hua
Published: August 2013

Study on the working principle of the surface acoustic wave (SAW) methane sensor. Establish the physical and chemical model of sensitive mechanism based on the mass-effect and the adsorption characteristics of gas on the sensitive membrane. The linear solvation energy relationship (LSER) has been developed to describe and quantify these various interactions. Simulate the mass-sensitive gas sensor based on COMSOL multiphysics software. The simulation significantly reduces the amount of prototype experiments, sensor development cycle and development costs.
OpenGL Based Intuitive Interaction Technology for 3D Graphical System by 2D Devices
Authors: Huang Hua Dong , Fang Xiao Yong , Chen Zheng , Hong Jun , Huang Ying
Published: August 2013

We address the problem of how to intuitive interacts with 3D graphic system by 2D devices, and present a general interactive framework for developing human computer interaction interface for graphical system. We consider the subclass of interaction situations in which 2D devices such as mouse and windows intuitively control scene observation, select and manipulate 3D object. Based above, an object-oriented software architecture is presented to construct the virtual world, OpenGL is used to render and control 3D graphic scene and Visual C++ 6.0 platform and Windows system are combined to build the underlying structure of the software. First, compare to OpenGL select mechanism, a novel select mechanism is presented. Second, with common 2D devices, we introduced an intuitive and precise mechanism for scene observation and object manipulation. Experimental examples prove that our interactive technology is feasible and practical.
Kinetostatic Analysis of the Mechanism of 5-th Class by Using Vector Method
Authors: Abduraimov A. , Drakunov Yuriy , Espaev Bolat , Zmeikova Tatyana
Published: August 2013

In this paper, we consider the vector method of solving one of the most important problems of the dynamic analysis of mechanisms - kinetostatic analysis, which is to determine the reactions in the kinematic pairs and the balancing moment (force) on the leading link of a given law of motion of the mechanism [. This problem has a great practical importance in the selection of electro engines and in the calculation of the bearings in kinematic pairs. For example, setting the constant angular velocity of the driving link can be made kinematic and kinetostatic analysis of the mechanism and determine for all site of motion the balancing moment and the reactions in the kinematic pairs. By the average value of the balancing moment define the parameters of the electro engines and on the extreme values of the reactions produce calculation and selection of the bearings that will be installed in the hinges. In addition, knowledge of analytical expressions reactions will most clearly solve the problems of dynamic mechanisms with friction in the kinematic pairs.
Driving Characteristic Analysis of a Planar Deployable Support Truss Structure for Space Antenna
Authors: Wang Dan Dan , Cong Qiang , Liu Rong Qiang , Zhang Cong Fa , Wang Yan , Guo Hong Wei
Published: August 2013

As the development of space structures is increasing fast, analysis on the characteristics of those deployable structures deserve to be paid enough attention to ensure a reliable deployment on orbit. For a deployable truss structure, more than one position can be chosen as the driving positions, especially when the structure has not only 1 degree of freedom (DOF), an available choice of the driving positions shows significant importance on the performance of the space deployable structure. This paper mainly deals with a planar deployable support truss structure for space antenna by means of the closed loop equations and the Kane equation to discuss the deployment characteristics by comparison of the driving torque needed over time. A full comparison of all the possible examples of deployment analysis results under different driving modes is presented. The results show the importance of the choice of driving movements and the design of parameters and also provide a useful reference to other related truss structures.
A New Text Based CAPTCHA
Authors: Wang Eric Ke , Ye Yun Ming
Published: August 2013

Attacks on text-based CAPTCHAs are getting more sophisticated. Most existing schemes defend attacks by increasing deformation or distortion rate of words which sacrifice the friendliness of the system. In this paper, we propose a secure one time text-based CAPTCHA scheme which can effectively defend multiple attacks without decreasing the friendliness of the scheme for valid users. The core of our design is an information obfuscation scheme which determines which character image to display and which to hide in an online manner from a sequence of 62 character images which makes it more difficult to attack. Encryption method is employed for protecting display policies which control showing and hiding of information. Prototype has been implemented and the preliminary results are encouraging.
Robust and Non-Fragile H∞ Observer-Based Filter Design for Parameter Uncertain System Using PLMI Approach
Authors: Yang Seung Hyeop , Paik Seung Hyun , Park Hong Bae
Published: August 2013

This paper describes the synthesis of a robust and non-fragile H∞ observer-based filter design for a class of parameter uncertain system with polytopic uncertainties, disturbances, and gain variations. We present the sufficient condition for filter existence and the method for designing a robust and non-fragile H∞ filter by using LMIs (Linear Matrix Inequalities) technique. Because the obtained sufficient condition can be represented as PLMIs (Parameterized Linear Matrix Inequalities), which can generate infinite LMIs, we use the relaxation technique to find finite solutions for a robust and non-fragile H∞ filter. We show that the proposed filter can minimize the estimation error in terms of parameter uncertainties, filter-fragility, and disturbances.
The Application and Antifouling of AEM-RS in Ocean Current Buoy
Authors: Zhang Guo Hua , Liu Shi Xuan , Miao Bin
Published: August 2013

Equipped with type AEM-RS electromagnetic current meter, the buoy provided effective technical platform for on-site rapid monitoring of the ocean current. Performance index and usage in the ocean current buoy of AEM-RS was introduced. Ultrasonic cleaning method in seawater was developed for preventing AEM-RS from biofouling. Ocean current data can serve for oceanographic research and marine resource exploitation.
Development of Quality Inspection System for Insulation Monitoring Device of Metal-Oxide Surge Arrester
Authors: Yang Yuan
Published: August 2013

Metal-oxide surge arrester (MOA) is one of the important equipment in electrical utility company, its security and stability is critical to the safe operation of electrical equipment, and the insulation monitoring device is vital for getting the running status of metal-oxide surge arrester. Technical parameters requirements of this kind of device is discusses in this paper , and furthermore, relying on the condition monitoring technology laboratory for transmission and transformation equipment of the State Grid Corporation of China, a complete set of quality evaluation system is established, of which the following functions were realized, the total current and resistive current measurement error test, communication function test, environmental adaptability test, insulation performance test, electromagnetic compatibility performance test, mechanical performance test, enclosure protection performance test etc. With the system, a powerful technical support can be provided for the quality evaluation of the device, as well as the safe and reliable operation of the arrester.
The Application of Real-Time Monitor System Based on 3D Visualization Technology
Authors: Liu Fang , Tong Wei , Qian Zhi Jun , Dong Yu Hong
Published: August 2013

This paper introduced the laboratory model of Real-time monitor system based on the 3D Visualization for calefaction furnace, depicted the process of the model.In this paper we created a virtual environment and transport the real-time data which we collected from the locale to the virtual scene,to realize the real time monitor on the real environment.Through simulating in the lab,the effect of this system was realistic at the same time it arrived at the goal of better monitoring with better real-time.
Research of Video Surveillance and Diagnosis System for Plant Diseases Based on DM6446
Authors: Wang Xiu Qing , Qie Xu , Zhang Chun Xia , Zhao Na
Published: August 2013

TMS320DM6446 was used as a platform to build a video monitoring and controlling system for plant diseases. TMS320DM6446 can capture and encode the plant video. It delivered the video stream to the PC monitoring center by using streaming technology. Monitoring center displayed the received video, monitored the plant condition of growth and disease, and then obtained the image and relevant characteristics of disease. It used a combination of neural networks and expert systems to diagnose the plant diseases, and gave the control methods. The experimental results show that the proposed system can timely collect information about plant growth status and disease, diagnose the type of disease correctly and then reach the purpose of effective prevention and control for plant diseases.
Simulation of MEMS Cantilever Biosensor and Analysis of Readout Methods for Tuberculosis Detection
Authors: Sangeetha P. , Juliet A. Vimala
Published: August 2013

This paper deals with designing a MEMS cantilever which can function as biosensor for tuberculosis detection. In this study we investigate the MEMS based biosensor to detect Tuberculosis based on capacitive sensing, peizoresistive and resonant frequency methods. We also examine which method has enhanced performance. Early detection and treatment of diseases can facilitated only if we are able to detect pathogenic and physiologically relevant molecules in the body with high sensitivity and specificity.Early detection of diseases reduce the risk of patients being pushed to advanced stages of many diseases.This sensor is used for early detection of Tuberculosis using the antigen antibody reaction.Tuberculosis can be detected by monitoring the presence of disease causing antigen in the blood stream.The presence of disease causing antigen in the blood can be monitered by using this microcantilever based diagnostic device. The sensing principle varies according to the device, the nature of the analyte molecules, and the precision required. Capacitance, piezoresistance and resonance frequency are among the read out methods depending upon the mechanical properties of the device. The biosensor structure is designed and simulated using Coventorware, Intellisuit and HFSS software. This microcantilever based biosensor can detect tuberculosis by immobilizing specific antibodies on the microcantilever.These antibodies are specific to TB antigen 85 complex.When the patient sample containing TB antigen 85 complex is placed on the cantilever biomolecular interactions take place between TB antigens and the antibodies immobilized on the upper surface of the microcantilever.This causes microcantilever to bend and facilitates to detect the presence of Tuberculosis.Bending of the cantilever can be measured by capacitive sensing, peizoresistive and resonant frequency shift methods.
Research on Image Binding Mechanism Based on Kinect Skeletal Tracking in Virtual Fitting System
Authors: Miao Lu , Shang Shu Yuan , Cai Chen Xi
Published: August 2013

On the basis of kinect skeleton track data module, proposing a skeleton track-bound algorithm, you can implement static clothing pictures real time interaction with dynamic characters, combined with WPF in Visual Studio 2010, the corresponding hardware and software resources, a set of accessible and language programming in c# virtual fitting system. Kinect human key joint points coordinates of the corresponding parameter, a corresponding operation, bound to the clothes in the image, makes the image size can be based on different size fitting character change, achieving the desired effect of fitting.
Nanofiber: Applications and Implementation in Advance Water Treatment Techniques
Authors: Aijaz Muhammad Omer , Faiz Shan , Samad Ubair Abdus , Al Mubaddel Fahad S. , Luqman Mohammad , Alothman Othman Y.
Published: August 2013

The development in the field of nanofibers since last decade has reshaped the sense of polymer synthesis. Its high potential has rendered significant contributions in various advance applications. This featured article presents the nanofiber and its potential applications in various scientific and commercial fields. Moreover, the recent developments in the synthesis of nanofiber membranes for ultra and nano filtration of water are tabulated. Keeping the water scarcity problem in mind, many novel membranes (along with raw polymer and solvents) are discussed which are under research or being implemented for ultra and nanofiltration.
An Improved ODF Representation on Textured Materials Derived by Particle Swarm Optimization
Authors: Wang Da Peng , Wang Da Zhi , Wang Fu , Liang Zhi De
Published: August 2013

Based on the principle of maximum entropy method (MEM), the particle swarm optimization (PSO) with inertia weight factor is efficiently applied for the orientation distribution function (ODF) representation on textured materials in this article. By this optimized algorithm with a faster rate of convergence, more appreciable calculation results have been obtained for complete orientation distributions (C-ODF) of the designated deep-drawing IF steel sheets with macro cubic-orthogonal symmetry. With reference to data processing, there need no more assumptions except that the system entropy approaches maximum. The calculation results are irrelevant to the sample compositions, texture components or their initial orientation distributions derived from three pole figures.
Assessment of Uncertainties in Mechanical Models
Authors: Sýkora Miroslav , Holicky Milan
Published: August 2013

Resistances of mechanical systems are primarily dependent on material properties, geometry and uncertainties associated to an applied resistance model. While materials and geometry can be relatively well described, the resistance model uncertainty is not yet well understood. The present contribution proposes a general concept of the model uncertainty. Factors affecting results obtained by tests and models and influences of actual structural conditions are overviewed. Application of theoretical principles is illustrated by an example of historic iron columns considering a simple mechanical model. Proposed probabilistic description of the model uncertainty consists of the lognormal distribution having the mean 1.35 and coefficient of variation of 0.12.
Processing of TiC-CNT Hybrid Composite Coating on Low Alloy Steel Using TIG Torch Technique
Authors: Maleque M.A. , Bello Kamilu Adeyemi , M. Idriss A.N. , Mirdha S.
Published: August 2013

In the present study, a surface layer of TiC-CNT hybrid compositecoating has been developed on low alloy steel (LAS) by using powder preplacement and tungsten inert gas (TIG) torch melting techniques.The weighed powder mixture with the content of 1.0 mg per millimeter square area and containing TiC-4wt. % CNT particles was preplaced on LAS surfaces using a suitable binder and then melted under the TIG arc with an operating current of 100 A and energy input of 1440 J/mm. The microstructural and microhardness characteristics of the processed composites coating were analyzed using SEM, EDXand Vickers microhardness testers. Under the melting condition used in this investigation, the arc completely dissolved the composite powder mixture that resolidifiedinto a melt track with radial marks and smooth surfaces. Themelt cross sections were hemispherical in shape and produced 1 mm deep hard coating layer which were free from porosity and cracks. SEM micrographs TiC-CNT hybrid coated surface glazed at 100A consists of fineprecipitated TiC in form globular and cubic dendrites and this is the reason for hardness increment to an average of three times greater than that of substrate value. The result obtained indicated that TIG arc melting process is applicable to generate resolidified layer of precipitated TiC microstructure with uniformly distribution in the coating region.
Application of Nanostructured Powders to Control Characteristics of Electrode Metal Transfer and the Process of Weld Structurization
Authors: Kuznetsov M.A. , Zernin E.A. , Danilov V.I. , Кarzev D.S.
Published: August 2013

The paper considersthe influence of nanostructured powder-modifiers on transfer of the electrode metal drop and the microstructure of a surfaced metal in consumable electrode welding in argon shielding. It is found, that welding with the nanopowder Al2O3is the most consistent process and application of nanostructured powders enables controlling the structure and the morphology of a surfaced metal.