bluuebunny/crossref_metadata_2025 huggingface dataset:
Matching Algorithm of Binocular Dynamic Vision Measurement
Authors: Sun Xue Qi , Dong Ming Li , Wang Jun
Published: March 2013

In order to realize the correspondence of feature points in the binocular dynamic vision measurement system, the two homologous images matching problem in the paper is studied. First of all, a method of strong space resection. The strong space resection optimizes the elements of exterior orientation, improves the precision, so as to improve the calculating precision of epipolar line. Secondly, an algorithm of multiple restriction matching which is for two homologous images matching of feature points has been introduced. This algorithm based on epipolar line constrain, increases the uniqueness constraint and double constraint, combined with the second match with disparity gradient constrain, finally get the correct matching relationship of feature points in two homologous images. The experimental results show that: this method for matching of binocular dynamic vision measurement system, can get 100% of the matching accuracy rate. And it would satisfy the need of binocular dynamic vision measurement system.
The Study of Motor Winding Testing System for Inter-Turn with 30kV
Authors: Sun Xiao , Zhou Hao , Lu Xiang Jiang , Yang Yong
Published: March 2013

This paper designed a motor winding testing system, it can do the dielectric withstand voltage test of inter-turn under 30kV.The system can communicate effectively between PC and machine, by using the PC's powerful capacity of process data and PLC's better stability and the Labview's convenient UI. So the system has real-time data collection, preservation, analysis and other characteristics. This system is able to achieve factory testing and type testing of the motor windings facilitating. Various performance indicators were stable and reliable by field test during a long time.
Analysis of the Thickness of the PDMS Layer in Structure of the Stretchable Sensors
Authors: Lu Yan Jun , Zhu Hong Bin , Zhang Yong Fang , Hei Di
Published: March 2013

The prospective application of flexible electronics is feasible by shielding the silicon ribbons from damage in the structure. The silicon failure in the design of strain isolation for stretchable and flexible sensors is analyzed by FEM. The destruction of the silicon circuit is different with the change of the thickness of the PDMS layer in stretchable sensors. Owing to the fact that the PDMS layer is not infinitely thick in the application, the purpose of the paper is to provide a reference for choosing the thickness of the PDMS layer in the design of stretchable sensors.
Design of Crane Torque Monitoring System Based on ARM
Authors: Liao Ping , Huang Zhen Xing
Published: March 2013

In view of the drawback of current crane torque monitoring system in real-time performance and anti-jamming performance, a new crane intelligent monitoring device based on ARM and Windows CE operating system is proposed, including its working theory, hardware circuit and software design. Taking the versatility and anti-jamming performance of the system into account, the design and implementation of input signal conditioning modules and output execution modules are elaborated in detail. The application shows that this system is stable and reliable, and can effectively guarantee safe operation of crane, its easy-operation and versatility make it a good application prospect.
Fire Positioning Based on Wireless Sensor Networks
Authors: Li Bo , Wu Qi Sheng , Zhang Lei , Cao Wen Bo
Published: March 2013

Subway fire location has important significance to fire and rescue.This paper analyzes the characteristics of the wireless sensor network positioning technology, using a range-free positioning technology to achieve the positioning of fire, and uses a removable multi-function video platform for the secondary, to achieve the fire video observation and fire location positioning, that makes fire positioning more accurate.
The Automatic and Real Time Measurement of Tunnel Surrounding Rock Deformation
Authors: Cai Jia Cheng , Huang Yan Tang , Huang Yu
Published: March 2013

We designed a tunnel surrounding rock(TSR) deformation automatic and real time measurement system .The long distance laser datum line instrument (LDLI) is fixed in stable ceiling rock of the tunnel. The LDLI transmits a bunch of lateral linear benchmark beam with small facula, and projects to the linear array CCD which mounted on instable surrounding rock. The linear array CCD detected the facula centre position real time. The facula displacement within a period is equal to the displacement of instable rock. We used the wireless data transmission module and optical fiber transceiver to transfer the displacement data to the on duty room computer. We compiled the data processing software to display the measure result in graphical and give a judge for the instable surrounding rock. If it is in danger, the alarm module gives audible and visible alarm signal in site and send a message to the manager’s mobile phone. The measurement accuracy is less than 1mm. We used this system to measure the tunnel surrounding rock deformation automatically and real time to realize intelligent management in several tunnel
The Design and Implementation of PLC Monitoring System Based on OPC
Authors: Zhang Yong Sheng , Liu Miao Miao , Zhao Feng Zhi
Published: March 2013

Explaining how to program in means of automation interface in Delphi and establishing the connection between OPC client and PLC through Profibus and Simatic Net so as to implement PLC data reading and writing.
A Optimization Algorithm for the Frequency Domain Fault Location
Authors: Liu Xin Dong , Zeng Rui Ming , Guo Rong , Shu Xian Yu
Published: March 2013

This paper proposes a new optimization fault location algorithm. Based on distributed model, this algorithm builds frequency spectrum equation of faulty network with transmission line parameters to identify, extracts transient frequency spectrum, gives each error of harmonic corresponding weight to construct optimal objective function and finally solves the equations through simulated annealing (SA) algorithm. The algorithm will not be affected by the inaccurate parameters and makes full use of the extracted frequency spectrum. Simulation on EMTP shows high accuracy of the algorithm.
Efﬁcient Multi-Level Human Motion Tracking Based on Compressive Infrared Sensing Paradigm
Authors: Luo Xiao Mu , Liu Dong Hui , Chen Hao , Hong Jia Ming , Liu Tong , Huang Bin
Published: March 2013

Multi-level human motion tracking and analysis is still an open question in person surveillance, especially with constrained computational and communication resources. In this paper, we propose a sensing paradigm which could address this challenge efﬁciently and effectively. The proposed paradigm mainly includes two components. First, we design a compressive infrared sensing model, which can sample and encode multi-level human motion into low-level sensor data directly, without the mediate process of scene recovery. Second, we employ lightweight data processing algorithms to detect and segment human motion at different levels, and decode the location information adaptively. We used self-developed pyroelectric infrared (PIR) sensor nodes to construct a wireless distributed network, and conducted experiments in real ofﬁce environment. The experimental results showed that the proposed paradigm could track human motion at two levels robustly, and the computational and communication burden is low (5×1 sensor data stream at 5 Hz for processing). Our paradigm bridges the gap between the low-level sensor data and the high-level analysis for large-scale automated surveillance, and could serve as useful guidance for system design if needed.
Research on the Speed of Diesel Engine Based on Improved BP Neural Network Controller
Authors: Shi Yong , Zhang Lian Yu , Sun Jun , Zhang Hong Guang
Published: March 2013

Marine diesel engine is of characteristics of non-linear and time-invariant, so it is difficult to be controlled with traditional PID controller. An adaptive controller based on back-propagation (BP) neural networks was put forwarded for marine diesel engine speed control system, where two neural networks are proposed to control the position loop and speed loop. The adaptive controller was improved was improved via introducing relative error in target evaluation function of the BP neural network, and obtain sensitivity function of diesel engine output with respect to its input using a differential equation. The controller has self-learning and adaptive capacity. It can also optimize the PID controller parameters online. The controller was experimentally evaluated on rack position actuator of marine diesel engine simulated based on a diesel hardware-in-loop system of dSPACE. Finally, tests on a diesel engine demonstrated that the controller can satisfy the transient and steady demands of speed regulation system.
Super-Optimal Pairings
Authors: Qi Yan Feng , Tang Chun Ming , Guo Baoan , Xu Mao Zhi
Published: March 2013

In this paper, we construct super-optimal pairings with efficiently computable endomorphisms. We first consider elliptic curves E/Fq: y2=x3+B and construct super-optimal pairings with automorphisms and Frobenius endomorphisms. In the case of (3,k)=1, these super-optimal pairings can be computed using log2r/φ(3k) Miller iterations, with k the embedding degree. This Miller loop length is only half of that of optimal pairings. Then we consider elliptic curves E'/Fq: y2=x3+u6B and give super-optimal pairings with efficiently computable endomorphisms constructed by Galbraith et al. In the case of (6, k)=1, these super-optimal pairings can be computed by log2r/φ(12k)Miller iterations, with k the embedding degree. This Miller loop length is only 1/4 of that of optimal pairings.
Novel Automatic Measurement System for the TCR Test of Multi Quantum Well with High Precision
Authors: Zhou Tong , Dong Tao , Su Yan
Published: March 2013

A novel automatic measurement system for the TCR(temperature coefficient of resistance) test of multi quantum well which is one kind of IR and biomedical materials used in pathogen detection is presented. The system is constructed to solve the problem that conventional four-probe measurements are not suitable for multi quantum well because of the special structure of multi quantum well material. The practical application of the system demonstrates the system measurement error is less than 0.005% of the sample resistance. The results of experiment show that this system has good performances in multi quantum well measurement.
The Building of Composite Materials Information System Based on Internet of Things Technology
Authors: Liu Fei , Mu Jun Chen
Published: March 2013

The composite material is a form of materials with new properties on the macro by the different nature of the material in two or more physical or chemical methods. The composite material is divided into two major categories of metal and nonmetal. The Internet of Things is based on the information carrier of the traditional telecommunications network, so that all can be individually addressable ordinary physical objects to achieve the interoperability network. The paper puts forward the building of composite materials information system based on internet of things technology. The experiment shows RFID is superior to M2M in building composite materials information system.
Research on the Involute Helical Gear Meshing Based on Friction Dynamics
Authors: Li Bao Liang , Gao Shuai , Hu Xiao Wei
Published: March 2013

Based on the virtual prototyping technology, the involute helical gears of a common single-stage reducer are taken as the research object, the friction dynamic model is established using ADAMS. Considering the influence of the contact friction during the gear meshing process, the simulation analysis is realized. The simulation analysis results are basically in conformity with that of the theoretic calculation. The variations of the relative sliding velocity, the friction coefficient and the friction force during the meshing process are researched, and the relationship between the relative sliding velocity and the friction coefficient is studied. The results show that the friction dynamics research on the involute helical gear meshing can be resolved by Virtual Prototyping Technology, which can provide a new method to study the tribological properties of the gear meshing. The method has a good prospect in practical engineering application.
Dynamic Modeling and Modal Analysis of the High-Speed Winder Spindle
Authors: Hou Xi , Yang Chong Chang , Wang Sheng Ze
Published: March 2013

A model of the spindle which is one of key parts of the high-speed winder is presented in this paper. A cantilever type hollow bobbin, a flexible shaft, bearings, Elastomer O-Rings and the frame is included in the model. Comparison between the 3D finite solid element model and the beam element model is made in the modal analysis. Critical speeds and the corresponding whirling motions are obtained from the beam finite element model considering the effect of rotatory inertia, gyroscopic moments, and the damping. The dynamic analysis mentioned above is implemented by using the finite element software ANSYS. Calculation results in this paper facilitate the following dynamic analysis and a foundation for the performance improvement of the high-speed winder.
DEM Simulation of Working Speed of Spade Soil Opener Influencing on the Dynamic Behavior of the Soil
Authors: Ji Yu Jie , Li Cheng Hua , Xue Hong Da
Published: March 2013

To research spade soil opener work performance, based on two-dimensional discrete element method, using the secondary development of CAD technology, by soil opener CAD model to construct a two-dimensional discrete element analysis model soil opener using MFC programming techniques developed two dimensional discrete element simulation system based on building a soil discrete element calculation model of the soil opener process simulation, presented on a computer spade affect the dynamic behavior of the soil, has been the destruction of soil flow deformation achieve spade Soil computer-aided design, provides a new method for the analysis into the performance of the opener, and provide a reference for the design of the cut soil components.
BIW Modal Analysis and Research Based on the NVH
Authors: Li Mao Ting , Yan Hua Jin , Ai Li Ming
Published: March 2013

The car body-in-white as the core research objects, NVH performance based on white body in finite element modeling and numerical modal analysis, this paper finds out the natural frequency of vibration may cause the BIW’s resonance. It indicates the direction to improve body-in-white NVH performance, local stiffness and further structural optimization through testing modal, stiffness analysis and NTF / VTF experiments to validate the numerical results of the modal analysis of the credibility and the body-in-white how much frequency or frequency band resonance peak caused by the body.
Study on Photoelastic Method for Measuring Elastohydrodynamic Lubrication Pressure in Line Contact
Authors: He Jun , Ping Huang , Yang Qian Qian
Published: March 2013

In the present paper, a new method for measuring elastohydrodynamic lubrication (EHL) pressure in line contact is proposed, which is based on the photoelastic technique. The pressure distribution of EHL film and the inner stresses in the friction pairs are fundamental issues to carry out EHL research. The film thickness, pressure and temperature have been successfully obtained with solving the basic equations such as Reynolds equation and energy equation simultaneously or separately, with numerical model of EHL problem. The film thickness can be also measured with the optical interference technique. However, the pressure measurement is still a problem which has not been well solved yet, so as the inner stresses inside the friction pairs. With the experimental mechanics, the photoelastic technique is a possible method to be used for measuring the pressure distribution of EHL film and inner friction pair in the line contact. Therefore, A flat plastic disk and a steel roller compose the frictional pairs of the photoelastic pressure measuring rig with combining the monochromatic LED light source, polarizer CCD camera and stereomicroscope to form the whole pressure measuring system of the line contact EHL. The experimental results with the rig display the typical features of EHL pressure. This shows that the method is feasible to be used for measuring the pressure of EHL film and the inner stresses of the friction pairs in the line contact.
KisBot III: New Spherical Robot with Wind-Driven Driving Mechanism
Authors: Seo Hyun Duk , Ahn Sung Su , Yoon Joong Cheol , Lee Yun Jung
Published: March 2013

This paper introduces a novel spherical robot, KisBot III, with a newly designed wind-driven driving mechanism. The ducted fan for wind propulsion of the robot is installed at the center of the sphere, and according to the direction of the fan, the robot is able to move forwards or backwards. The outer shell is an open framework of spring carbon rods, and also includes two arms that can be folded-out to make the robot stop and partially deform its shape. Plus, for turning and balance control, a pendulum is located under the ducted-fan frame. By adopting wind as the driving mechanism, the robot has enough propulsion to drive over flat and uneven terrain, and negotiate a raised curb and slope. Experiments verify the driving motions and efficiency of the proposed spherical robot.
The Mechanical Properties of 20MnSi Steel and Welding Research
Authors: Wang Qing Hui , Wu Hua , Chen Tao
Published: March 2013

The microstructure, mechanical properties, precipitation of micro alloying elements and welding performance of self-designed 20MnSi steel were investigated, by means of metallographic microscope , transmission electron microscope, electroslag pressure welding and mechanics performance tests, etc.The results show that,with the actions of microalloy V and controlled rolling and controlled cooling technique, tensile strength (Rm) and yield strength (Rel) of the test bar could respectively reach 730 MPa and 560 MPa, uniform elongation (Agt %) of 13.5%, which has met the seismic performance index. And we found that a lot of dispersion particle V (CN) precipitated in the ferritic matrix and grain boundary place, which have a good precipitation strengthening and refining grain effect. In addition, based on the welding parameters reasonable controlling, it can make the mechanical properties of welding joints changes not beyond the design range, and satisfy the use requirement.
Effects of Bias Voltage on Properties of (Ti, Al)N Coatings
Authors: Chen Tao , Wu Hua , Wang Qing Hui
Published: March 2013

PVD method is used to deposit (Ti,Al)N coatings on the surface of W6Mo5Cr4V2 steels. The value of bias voltage changes from -100V to -400V. X-ray diffraction (XRD), Scanning electron microscope(SEM) and UNMT-1 were employed to analysis the microstructure and mechanical properties of (Ti,Al)N coatings. The research results showed that the microstructure and mechanical properties of coatings became better when the value of bias voltage was -400V. The size and quantity of particles on coatings both decreased obviously. The adhesion between coatings and substrates increase to 54.6N. The hardness of (Ti,Al)N coatings rise to 39.7N.
Effect of Hot Extrusion on Microstructure and Mechanical Properties of P/M Al/SiCp Composite
Authors: Sun You Ping , Zhou De Jian , Xu Wu Bin , Shi Guang Lin , Li Wei
Published: March 2013

Distribution of SiC particles in powder metallurgy (P/M) Al/SiCp composite during hot extrusion were investigated in this paper. It has been shown that a homogenous distribution of SiC particles in as-extruded rods has been achieved. There was an order and directional distribution of SiC in the longitudinal direction, which was related to the stress state associated with hot extrusion. With a small extrusion ratio (11), many obvious interfaces among the powders remained existent since the extrusion stress was not large enough to achieve a metallurgical bond. The interfacial bonding strength of the composite can be enhanced with a higher extrusion ratio, and metallurgical interfaces were achieved with the extrusion ratio of 17. Ambient tensile tests demonstrate that the mechanical properties change along with the extrusion ratio’s increasing.
The Removal Mechanism Experimental Research of Smooth and Flat Processing of Abrasive Water Jet to Single Abrasive Particles
Authors: Song Yue Gan , Song Dan Lu , Wang Kun
Published: March 2013

This paper describes works of the post-mixed abrasive water jet, and makes kinetic energy analysis to the single abrasive particles from the theory angle, In addition, does some research such as Jet pressure, abrasive flow, the speed of nozzle movement and Incident angle on the influence of the removal rate.Through the control of technological parameters, the paper studies polishing removal mechanism of single abrasive particles for stainless steel on the grades of 0Cr18Ni9Si,Thus which provides theoretical basis and practical guidance for the cold polishing processing of profile surface.
Steganographic Method with High Visual Concealment in Wavelet Domain
Authors: Chen Zhi Hong
Published: March 2013

In this paper we propose a new steganographic method, which based on wet paper codes and wavelet transformation. The method is designed to embed secret messages in images' wavelet coefficients and depends on images' texture characters in local neighborhood. The receivers can extract secret bits from carrier images only by some matrix multiplications without knowing the formulas written by senders, which further improves steganographic security and minimizes the impact of embedding changes. The experimental results show that our proposed method has good robust and visual concealment performance and proves out it's a practical steganographic algorithm.
Forming Mechanism of Composite Coating with Nano-Particles and its Wear Resistance
Authors: Li Xue Song , He Long Sheng , Yang You
Published: March 2013

Ni-SiC nano composite coatings were prepared on pure copper substrate. The surface morphology and distribution of nanometer particles of the composite coatings were observed by scanning electron microscope (SEM), micro-hardness of coatings was tested by HXD-1000 microharder. The results showed that microstructure of Ni-SiC nano composite coating is different from that of electrodeposited nickel coatings. Its electrodepositing process abided by the principal of adsorption. By adding nanometer particles, the structure of composite coatings can be effectively fined, microhardness of composite coatings is improved apparently by comparing with that of electrodeposited nickel coatings. Abrasion resistance of Ni-SiC nano composite coatings is excellent.
Wind Energy Resources Prediction Based on EOF Method and RBF Neural Network
Authors: Cao Xiao , Chen Zhi Bao , Zhou Hai , Ding Jie
Published: March 2013

In this paper, research starts from the data captured from several wind measuring stations. Firstly, the main spatial Patterns are extracted by EOF (empirical orthogonal function) method, and then the time coefficient series corresponding to principal spatial patterns are processed and predicted by RBF (radial basis function) neural network. Furthermore, according to the EOF decomposition method, inversely the new prediction time coefficient series are used to calculate the wind speed values in the future. Finally, the validity and advantages of this prediction approach are tested by the simulation results.
Modernization of CHP Cycle in Sugar Complex
Authors: Bhagwat Sanjay S. , Pohekar S.D. , Wankhade A.M.
Published: March 2013

Keywords: CHP, Bagasse, Heat Power Ratio, TCD Abstract: A huge potential for power generation from waste fuels exists within the sugar cane industry. Newly developed advanced high pressure boiler technology and utilizing modified combined heat and power cycle opens the way to fully exploit this potential, yielding more kWh’s of electric power per tonne of cane. This paper deals feasibility of bagasse based modified CHP cycle for 2500TCD sugar factory for surplus power generation.
The Development of Building Materials Recommendation System Based on Collaborative Filtering
Authors: Kuang Guo Fang , Kuang Chun Lin
Published: March 2013

The building materials used in building materials collectively referred to as building materials. New building materials, including a wide range of insulation materials, insulation materials, high strength materials, breathing material belong to the new material. Collaborative filtering process is based on known user evaluation to predict the target user interest in the target, and then recommended to the target user. This paper proposes the development of building materials recommendation system based on Collaborative filtering. Experimental data sets prove that the proposed algorithm is effective and reasonable.
Visualization of Structural Defects Based on Ultrasonic Wave Propagation Imaging Technique Using Pulsed Laser System
Authors: Lee Chang Gil , Shin Eun Seok , Kim Hyun Uk , Park Seung Hee
Published: March 2013

In this study, structural defects are visualized and localized based on a noncontact nondestructive testing (NDT) method which utilizes an ND: YAG pulsed laser system. The ND: YAG pulsed laser is used to generate Lamb waves of a plate-like structure and to scan specific area of the target structure for the visualization of the structure. Wave responses are measured using only single piezoelectric sensor. The measured responses are analyzed using 3 dimensional Fourier transform. The damage-sensitive features are extracted by wave-number filtering based on the 3D FT. Then, flaw imaging technique of a plate-like structure is conducted using the damage-sensitive features. Finally, the plate with a notch is investigated to verify the effectiveness and the robustness of the proposed NDT approach.
Analysis of Wind Impacts on the High-Rise Building "Iset Tower"
Authors: Alekhin V.N. , Antipin A.A. , Gorodilov S.N.
Published: March 2013

In the paper the wind loads on 52 flore building "Iset Tower" are investigated. Distribution of pressure to the building and velocities are presented. Performed calculations show qualitative agreement with experimental results. According to the results of numerical simulation of wind effects it can be concluded that both aerodynamic experiments and numerical analysis are needed in the design. If there is coincidence of experimental and numerical results then they can be used to calculate the skeleton of the building.
Curing Strength Monitoring of Early-Age Concrete Based on Velocity of Guided Wave Using Embedded Plate-Type PZT Sensor Module
Authors: Kim Ju Won , Shin Eun Seok , Lee Chang Gil , Park Seung Hee , Hong Seo Kinn
Published: March 2013

In this study, a guided wave based nondestructive curing strength monitoring method is proposed to monitor the curing strength of the early-age concrete. This approach used the embedded steel plate-type PZT sensor module which was fabricated by bonding the two pieces of piezoelectric sensor to a steel plate. The steel plate provided the constant path for guided wave propagation and it protected the piezoelectric sensors from impacts and environmental variations. To measure the guided wave signals from the early-age concrete, fabricated sensor modules were landfilled at the same time with concrete placement.While the concrete was curing, guided wave signals were measured by pitch-catch method continuously at regular intervals. Wavelet transform process was performed to improve the quality of the signal by removing the signal’s noise of undesired frequencies. The TOF (Time of flight) of guidedwave was extract from de-noised signal using peak tracing algorithm to calculate the velocity of wave. The calculated wave velocity hysteresis according to the curing time was traced to analysis the pattern of variations of wave velocity. Finally, specific equations to estimate the strength of the concrete were derived using regression analysis based on the wave velocity and compressive strength from destructive compressive strength test.
Optimization of Energy Consumption Using BIM-Based Building Energy Performance Analysis
Authors: Jung Dae Kyo , Lee Dong Hwan , Shin Joo Ho , Song Byung Hun , Park Seung Hee
Published: March 2013

Recently, the interest in increasing energy efficiency of building energy management system (BEMS) has become a high-priority and thus the related studies also increased. In particular, since the energy consumption in terms of heating and cooling system takes a large portion of the energy consumed in buildings, it is strongly required to enhance the energy efficiency through intelligent operation and/or management of HVAC (Heating, Ventilation and Air Conditioning) system. To tackle this issue, this study deals with the BIM (Building Information Modeling)-based energy performance analysis implemented in Energyplus. The BIM model constructed at Revit is updated at Design Builder, adding HVAC models and converted compatibly with the Energyplus environment. And then, the HVAC models are modified throughout the comparison between the energy consumption patterns and the real-time monitoring in-field data. In order to maximize the building energy performance, a genetic algorithm (GA)-based optimization technique is applied to the modified HVAC models. Throughout the proposed building energy simulation, finally, the best optimized HVAC control schedule for the target building can be obtained in the form of “supply air temperature schedule”.
Using Rough Set to Develop the Building Materials Management System
Authors: Xu Jian
Published: March 2013

Materials used in buildings are collectively referred to building materials. Building materials can be divided into structural materials, decoration materials and some special materials. Rough set theory is built on the basis of the classification mechanism, it will be classified understand in a particular space on the equivalence relation, equivalence relations constitute the division of space. The paper puts forward using rough set to develop the building materials management system. The experiment shows the CPU Time in the attribute numbers, indicating that rough set is superior to FCA in building materials management system.
Coal Mine Disaster Psychological Crisis Intervention Models and Methods
Authors: Yang Yang , Gao Yong Xin
Published: March 2013

China is a country whose colliery disaster happen frequently. After the colliery disaster ,the most important thing is the nursing of people's mental health. And it is the most difficult to recovery .Mental crisis intervention is mobilizing all kings of available resources and taking all possible or feasible measures to limit and eliminate clients' mental disorder and disorder behavior caused by colliery disaster .This essay is aimed at psychological crisis intervention model and methods research to put forward six steps for mental crisis intervention and put forward cognitive behavior intervention mode and method for clients who lack of cognitive absence.For the establishment of useful help psychological crisis intervention system in coal mine.
On the Roles of Aesthetics in Engineering Education and Healthy Personality Development
Authors: Zhu Xiao Hui
Published: March 2013

The aesthetic education and its application to engineering education and personality development are considered in this paper. First, we investigate main reasons causing the weakness of the aesthetic aspect in engineering education. Next, we analyze the important roles of aesthetic education to help cultivate the healthy personality. Finally, we propose concrete strategies of incorporating the aesthetics into the engineering education and the personality development for university students, which are expected to be helpful to improve the effectiveness of the higher education.
Lifecycle-Based Swarm Optimization for Constrained Problem of Engineering
Authors: Yin Zhuang Wei , Shen Hai , Deng Yu Fu , Zhang Mo
Published: March 2013

There are many constrained optimization problems in engineering. Bio-inspired optimization algorithms have been widely used to solve various engineering problems. This paper presents a novel optimization algorithm called Lifecycle-based Swarm Optimization, inspired by biology life cycle. LSO algorithm imitates biologic life cycle process through six optimization operators: chemotactic, assimilation, transposition, crossover, selection and mutation. In addition, the spatial distribution of initialization population meets clumped distribution. Experiments were conducted on a Vehicle Routing Problem with Time Windows for demonstration the effectiveness and stability. The results demonstrate remarkable performance of the LSO algorithm on chosen case when compared to two successful optimization techniques.
Research on Acceleration/Deceleration in NURBS Curve Interpolation
Authors: Gao Su Mei , Mu Fu Yuan , Zheng Li Ming
Published: March 2013

A non-uniform rational B-spline (NURBS) parametric curve interpolation and S-shape acceleration/deceleration (ACC/DEC) for CNC machine tool were studied. In the proposed algorithm, the commanded velocity is maintained at most of the time and adaptively reduced in large curvature areas to meet the demand of the machining accuracy requirement, while at the same time, a S-shape look ahead algorithm is proposed to limit the acceleration and jerk values within the machine’s capabilities during the whole interpolation process. It reduces mechanical shock to the machine tools. The real time performance of this interpolator is also measured to demonstrate its practical application. A NURBS curve interpolation experiments is provided to verify the feasibility and advantages of the proposed algorithm.
Implementation of Two Cameras to Robotic Cell for Recognition of Components
Authors: Sukop Marek
Published: March 2013

This paper describes the proposal and implementation of two camera sensor system used in combination with SCARA robot for sorting process control. Theoretical basics of 3D camera sensor evaluation and options for mutual camera placement are included. The paper is focused on sensor system components selection and implementation specifics for particular robotic system as well. Sensor system uses OMRON Vision Mate Controller for basic image recognition and PC for resulting data processing of specific points three dimensional position calculation.
Optimization of Process Layout of Robotic Systems in the MSEVR System
Authors: Belovezcik Andrej , Belovezcikova Tatiana , Koukolová Lucia
Published: March 2013

There exist various systems for optimization of project work including process layout. Mostly they are of commercial nature and it is necessary to follow the procedure designed by the author for their efficient utilization. This article gets closer to interesting abilities of MSEVR system in the process of optimization of process layout of a robotic system. It is a matter of the abilities which are not utilized commonly. Thus the following lines offer innovative ideas discovered in the process of free experimenting in MSEVR as inspiration for the general public of designers.
Manufacturing Systems Suitable for Globalized Market
Authors: Koukolová Lucia , Jánoš Rudolf , Šidlovská Ľuboslava
Published: March 2013

The paper clarifies the reasons leading to the creation of a new class of manufacturing system from a global perspective, focusing on the market environment. It describes the needs for reconfigurable manufacturing systems, which allows coping with market requirements and changes quickly and costing effectively. The article provides the approach to the design of the reconfigurable manufacturing systems from system, machine and control level point of view.
Approaches to Dealing with More Parametric Diagnostics of Manufacturing Machines
Authors: Hudák Rastislav
Published: March 2013

The contribution points out that the technical diagnosis is necessary for ensuring reliable operation. Today there is an effort to achieve maximum reliability of the machine and to plan maintenance efficiently. Technical diagnostics is basically used to monitor the status of the device. It is possible to observe a variety of indicators by which we can determine the technical condition of the machine. But watching only one variable or one indicator is not enough to exactly determine the technical condition. Therefore, the different methods of technical diagnostics are combined with each other and more parametric diagnosis is created. By using it, it is possible to determine the actual status of the machine with great accuracy and thus avoid unexpected breakdowns and to effectively plan the maintenance.
Virtual Reality in the Maintenance of Machinery and Equipment
Authors: Kováč Juraj , Stejskal Tomáš , Valenčík Štefan
Published: March 2013

The paper deals with the possibilities of virtual reality applications in maintenance and servicing of machinery and technical equipment. It presents the results of experimental testing of new methods and techniques in the laboratory, in the process of implementation of maintenance operations in a virtual environment. It characterizes the hardware and software tools used in laboratory experiments.
Service Robot for Motion on the Vertical Oriented Walls
Authors: Novotný František , Horák Marcel , Plavec Martin
Published: March 2013

The paper submitted presents a new-generation mobile platform specially designed for the service robot destined for motion on vertical oriented walls, e.g. on glass façade systems of tower buildings. The platform has been developed goal-directly as a motive system allowing special technological extensions to be installed with a view to inspecting, assembling or washing. It uses a stepping principle alternating step by step the motion of legs and body. A holding system was created based on the vacuum principle with greater number of parallel suction cups associated with the smart vacuum technique. Component rotational motive units are fitted with servo-actuators with electro motors being controlled on the level of modular systems based on an embedded PC.
Setting up a Work Centre Based on the Profibus Network
Authors: Piotrowski Andrzej , Nieszporek Tadeusz
Published: March 2013

Information communications networks, and especially their industrial versions (field networks), are an inseparable element of contemporary control systems. They enable pieces of modern industrial equipment to be coupled into a common system. In the case of older-generation equipment (universal one-stand CNC machine tools, manipulators, robots), their extension and integration in either dispersed or centralized control system is possible. As a result of modernization, it is possible to create a production line that will be built based on classic CNC machine tools and operated by manipulators or robots using network solutions and PC computers.
Stabilization of the Robot Mounted Inverted Pendulum by Vision Control
Authors: Kolker Alexey , Winkler Alexander , Suchý Jozef
Published: March 2013

In this paper the stabilization of the well known inverted pendulum problem by visual control is presented. The pendulum is mounted on the flange of an articulated robot arm. It is observed by camera and its angle of inclination is computed by image processing on a PC. For stabilization a state space controller realized with the standard robot controller is used. In summary, this system can be seen as an example of a robot with visual control. The inverted pendulum is used because it is an adequate controlled system to demonstrate advanced control algorithms. Its implementation with a robot results in some more restrictions in comparison with the pendulum mounted on a linear drive, e.g. in lower acceleration, smaller traversing range and the relatively high cycle time of the commercial robot controller. Furthermore, the integration of the camera in the closed loop control instead of an angular transmitter makes the successful realization more difficult.
The Studies of Optimal Arranging of the Solar Photovoltaic Battery Array and Optimal Matching of Power System for a Parking Garage
Authors: Xu Jian Long , Yang Qi Rong , Du Meng , Chang Zhi Qiang
Published: March 2013

The output power of the photovoltaic battery array of a solar parking garage is affected by two factors of arranging form and external conditions. Firstly, a solar parking garage in Qingdao is taken as an example. A simulation model of its solar panel square is established based on Matlab/S-Fcn/Simulink. The GX-120 solar panel with the size of 1250mm×808mm is taken as an example. And the normal external conditions and the principle of maximum output power in one year are also considered. Simulation results based on Matlab/S-Fcn/Simulink demonstrate that solar panels should be put on the dip angle of 30，with the span of 1605mm between two row. 28 solar panels can be arranged on the top of the parking space. Secondly, an experiment setup is established in order to simulate the electricity generating process by solar panels and parking process. Two GX-120 solar panels are employed as power generation device, while two 12V, 195AH storage batteries are employed as energy storage device. A direct 24V electromotor with hydromantic pressure 18MPa device is applied as simulation load, which can demonstrate the ascending and descending process in the parking space. The experiment studies the performance of the solar panels under different weather conditions. Results show that generating capacity of two pieces of panels can make a parking unit work eleven times, five times, one time and six times separately under four kinds of weather conditions (sunny, cloudy, rainy, and foggy day). The energy matching principle is that the parking lot only can provide 6.85 kilowatt for electric vehicles one day in the condition that each parking space parks cars four times every day in order to meet the continuous use of the parking garage. The rest of electricity must be storied in the battery.
Design and Implementation of a Novel High-Step-Up DC-DC Converter
Authors: Cheng Chun An , Cheng Hung Liang , Chang Chien Hsuan , Chang En Chih , Yang Fu Li
Published: March 2013

This paper proposes a novel high-step-up DC-DC power converter for high output-voltage applications from a low level of input voltage. The presented power converter is composed of a integrated boost-flyback converter with two output windings plus cascaded voltage doublers to boost up the 12 V input voltage to a high DC voltage level of 400 V. Description of the presented DC-DC power conversion circuit, and experimental results of a prototype converter for providing 40W output power with a 12V input DC voltage are demonstrated.
Shoulder-Surfing Resistant Smartphone Authentication Scheme Using Virtual Joystick
Authors: Kim Si Wan , Yi Hyun Yi , Ma Gun Il , Yi Jeong Hyun
Published: March 2013

User authentication techniques such as the setting of passwords are gradually gaining importance as a means of managing important information stored in smartphones. Existing text–based password authentication schemes have the advantages of being quick and easy to use. However, they are problematic in that passwords are easily exposed to shoulder-surfing attack. In addition, a graphical password authentication scheme has the limitation of being difficult to apply to mobile device environments, in which a lot of information must be remembered and small-sized screens are provided. Therefore, in this paper, we propose a new hybrid password authentication scheme using a pocket billiard and a virtual joystick, which is secure against shoulder-surfing, brute force attack, and smudge attack and has excellent usability.
Building a Maturity Model of Information Security Governance for Technological Colleges and Universities in Taiwan
Authors: Hung Chir Neng , Hwang Ming Dar , Liu Yuan Chen
Published: March 2013

This study used a questionnaire survey to investigate the maturity of information security governance (ISG). The main objective is to assess the maturity of ISG, exploring the factors concerned, and building an ISG maturity model . Questionnaires were sent to 93 CIOs in schools, and 85 were returned. The return ratio is 91.4% excluding three invalid, and with 82 effective questionnaires, the effective sample return rate is 88.2%. In order to improve the maturity of ISG for Taiwanese technological colleges and universities, this study aims to build an ISG maturity model to look for relevant features of maturity of ISG. According to the Information Security Governance and Maturity Assessment Tool, this study found that schools with low rates of maturity take up 59.8%, medium 31.7%, and high 8.5%. With discriminant analysis, the maturity of ISG can be distinguished by low, medium, and high rates. With correlation analysis, this study finds that 33 items have significant correlation with ISG maturity. With analysis of variance (ANOVA), post hoc range test and ANOVA multiple comparison least significant difference (LSD), this study finds that there are significant differences between the items of ISG maturity. This study also finds the ISG maturity of schools is lower. They can improve their ISG maturity according to this model.
Electronically Controlled Air Suspension Bus Control System Design
Authors: Wang Fan
Published: March 2013

The design of coach electronically controlled air suspension control system was made to be optimized and simplified, especially in hardware. The opto-coupler, inset in the input channels and output channels, let the electric be independent each other between computer system and the external environment and had own reference potential. Interfering signals which maybe make the system not to work by any possibility was suppressed. Practice has proved that reliability, safety and practicality of the control system had been greatly improved.
Design and Implementation of Engine Waveform Tester Based on Virtual Instrument
Authors: Ma Jin Gang , Song Hong Ying , Hou Jiang Li
Published: March 2013

Engine fault diagnosis and detection is inseparable from the analysis and examination of each sensor or actuator, and the waveform display is the most intuitive and convenient way. This system is an engine waveform tester developed based on virtual instrument and the batch estimate fusion theory is used in the process of the single sensor data acquisition and processing. It is proved by practice that this instrument can conveniently and quickly realize the functions such as signal acquisition and control, waveform analysis and processing and result expressing and output, thus providing technical support for comprehensive intelligent engine fault diagnosis technology.
Study on Recognize for Lamb Wave Test Signals Based on Finite Element Modeling
Authors: Liu Yan , Wang Yue Min , Shen Chuan Jun , Sun Feng Rui
Published: March 2013

In the defect test of plate-like structure, acousto-ultrasonic technique can stimulate a multi-mode Lamb wave. This paper used an FEM method to investigate the Lamb wave propagation, the simulating signals are decomposed and reconstructed by MP and compared with the theoretical parameter curve of the frequency dispersed curves. It was proved that matching pursuit based on tEP can accurately search the characteristic parameters of the signal, realize the rapid signal decomposition and reconstruction, and identify the defect signals.
Finite Element Analysis of the Extruder Die Axis Based on ANSYS
Authors: Hu Shi Jun , Zhang Hong Xiang , Zhang Dai Lu
Published: March 2013

In order to produce aluminum alloy pipe on 45MN reverse extruder smoothly and reduce damage of the die axis. By analyzing the structure of the die axis, establish finite element model of the die axis using SolidWorks software and make finite element analysis using ANSYS software on it. thus, come to the work stress and displacement distribution nephogram when the die axis of extruder is working. After analysis of the variation law of stress and displacement in distribution nephogram, the weakest parts of the die axis can be located when stress deformation occurs and its stress variation law when working can be found. All these work provide important theoretical basis for control range of extrusion pressure and further structure optimization of die axis of the extruder in practical production.