bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of Microstructure and Mechanical Properties of Carbon Steel Wire after Continuous Method of Deformation Nanostructuring
Authors: Polyakova Marina , Gulin Alexandr , Constantinov Dmitriy
Published: October 2013

The continuous method of wire deformation nanostructuring is developed on the basis of simultaneous applying of tension deformation by drawing, bending deformation when going through the system of rolls and torsional deformation on a continuously moving wire. The patent for an invention of the Russian Federation patent office is got. The efficiency estimation of the developed continuous method of deformation nanostructuring was carried out using wire made of medium and high-carbon steels containing 0.2 and 0.75 % C. The wire processed by this method has a uniform ultra-fine grain structure across the cross-section without internal discontinuities that indicates the possibility of combining different deformation schemes for achieving this type of structure in wire. Not only increasing strength properties of carbon steel wire is achieved after this method but increasing plastic properties occurs at the same time.
The Control of Vibration Transmissibility Using an Electrodynamic Actuator – Passive Solution
Authors: Mîţiu A. Mihaela , Comeagă Daniel Constantin , Donţu Octavian G.
Published: October 2013

Starting with the mathematical model of a simple electro-mechanical system with 1 DOF, are identified the electrical parameters which may influence the efficiency of control of the system transmissibility using an electrodynamic actuator. Based on simulation of system operation and determination of transmissibility are obtained Bode diagrams and diagrams that shows the maximum variation of the resonance frequency of the system when varying the electrical parameters of the actuator. In the paper is indicated the limits of the theoretical and practical technical solutions to control mechanical transmissibility of a system using an electrodynamic actuator.
Oscillatory Movements Analysis at Knee Level
Authors: Baritz Mihaela Ioana , Cotoros Diana Laura
Published: October 2013

Some theoretical and experimental considerations upon the biomechanics of oscillatory flexion-extension movements developed at knee level of human subjects, without previous detected pathologies are presented in this paper. Thus, the first part of the paper is referring to the analysis of aspects related to the locomotion system biomechanics concerning the flexion-extension movement at knee level and also to the setting of various samples of subjects out of which the examples for the proposed methodology application will be selected. In the second part of the paper, the analysis structures required for the recording and assessment of oscillatory movements biomechanics at knee level are developed and presented. In the third part, the results and conclusions regarding the behavior and performance limits of movements at knee level are presented and processed.
Time Domain Bearing Diagnosis Using Kurtosis Based Filtering and Fuzzy Logic
Authors: Betea Bogdan , Tomesc Liviu
Published: October 2013

On this paper a bearing defects diagnosis method is introduced. This diagnosis method is based on time domain signal processing first step being the kurtosis based filtering. This filtering is based on the detection of the shock pulses generated by bearing defects. The diagnosis is done using the detected defects periods which are the inputs for a fuzzy classifier that provide defect alerts for each kind of bearing localize defect
Design and Control System of Parallel Kinematic Manipulator
Authors: Mikolajczyk Tadeusz , Dorsz Dariusz , Romanowski Łukasz
Published: October 2013

This paper presents parallel kinematic manipulator design. A manipulator with three axis and parallelogram mechanism was made using aluminium profile rods. This mechanism was controlled by PC with the use of stepper motors. Kinematics analysis was conducted and its findings were used to make a special software to generate G-code control file. X and y mouse cursor indications with given z value were used as data showing the position of the effector to establish the movement of the arms of the presented manipulator. Step2CNC software was used to control the manipulator. Tests have confirmed the correctness of the study.
Adaptive Control System for Drill Machine
Authors: Mikolajczyk Tadeusz , Olaru Adrian , Krainski Piotr
Published: October 2013

The paper shows an adaptive system for drilling. To drill diameter measure video optical method with USB camera was used. Rotation of drill tool was controlled using an inverter. Adaptive system was controlled by PC using special software made in C++.
An Agent Infrastructure For the Human Driver Assistant
Authors: Diaconescu Eugen , Mihai Arva , Vladareanu Luige
Published: October 2013

The paper the original development of a device having the ability of data acquisition representing operating and control decisions from operation made by a automotive driver inside the cars cabin presents. The device is producing analogical and digital signals which can be interpreted and statistically processed to obtain information regarding emotional state or abilities of the driver, for example nervous state or his accuracy of the operations done in dynamic state when driving a certain car. The device is portable, it can be installed easily in the cars cabin without any physical intrusions in the structure of the vehicle and after installed it will acquire signals from acceleration, brake, gear shifter, clutch and the velocity of the vehicle. Evaluating the emotional state of the driver and the accuracy of the movements done by him during a driving session, the device can emit acoustic and visual output signals which in a certain manner will help to improve drivers skills. The human driver can interact with this device trough the touch screen display. If more of this devices having typical agents proprieties, are installed on vehicles, they can interact easily between them and communicate with an monitoring authority which is directing the traffics flow forming a SMA. The result of monitoring by a SMA of emotional states of the group of human drivers, as a second solution, complementary with the usage of the monitoring video cameras, can be useful to group leader (the detection of fatigue and exhaustion), or to the traffic flow legal authority (fluidization measures when detecting a growing of nervous state at a certain group in an area).
Software Application in Machine Vision Investigation of Agricultural Seeds Quality
Authors: Ola Daniel , Mănescu Mihai , Cristea Luciana , Budde Jörn , Hoffmann Thomas
Published: October 2013

The paper tries to analyze the possibilities of classification of hemp fiber plant seeds in order to provide an image recognition sorting system that can estimate the quality of the fiber hemp seeds destined for human consumption. Systems that can optically grade cereal grains are already available in the agricultural industry. The automatic classification systems for seeds take in consideration the size, shape, color and texture in order to assess the quality of nutritional seeds.This work investigates the classification possibilities of image systems using photo images acquired by an RGB camera. The article presents the experimental stand and devices used for the image analysis of the fiber hemp seeds probes. The method for the selection of the representative pixels of the quality seeds is described and finally the results for the classification of the ratio of ripe seeds versus unripe seeds are presented in graphs. Conclusions are formulated and discussed.
Quality Modeling Framework for Service Composition. An Indoor Air Quality Monitoring System Case Study
Authors: Stegaru Georgiana , Moisescu Mihnea , Sacala Ioan Stefan , Stanescu Aurelian Mihai
Published: October 2013

Service-orientation paradigm can sustain enterprise transformation providing a vast amount of flexibility by allowing organizations to develop complex, cross-organizational business solutions through Web Service compositions. In this paper we propose a layered quality modeling framework that evaluates interoperability and adaptability of service compositions. A case study on Indoor Air Quality Monitoring System is realized to demonstrate the applicability of the proposed framework.
Correlation Coefficient of Interval Neutrosophic Set
Authors: Broumi Said , Smarandache Florentin
Published: October 2013

In this paper we introduce for the first time the concept of correlation coefficients of interval valued neutrosophic set (INS for short). Respective numerical examples are presented.
Contribution to Diffusion Processes Application in the Area of Critical Infrastructure Security Assessment
Authors: Valis David , Pietrucha-Urbanik Katarzyna
Published: October 2013

Assessing the vulnerability of critical infrastructure objects is of major concern when dealing with the process of dependability and risk management. Special attention is paid to the objects of higher interest, such as nuclear power plants. In spite of the protection of these objects, there is still a certain level of a potential threat. The aim of the paper is to describe a possible way of attacking on the object in order to get into a particular part of it. Several characteristics of an adversary ́s attempt were obtained. For this reason as well as for modelling adversary ́s behaviour diffusion processes have been used.
Comparison of Controllers for a UAV with Integral Effect and Kalman Estimator: By Bessel Polynomials and LQR
Authors: Rodríguez Wenceslao Eduardo , Ibarra Ramiro , Romero Gerardo , Lara David , Arredondo Jaime , Rivera José G. , Pegard Claude
Published: October 2013

This paper presents the development of two different control techniques as an approach having to remove steady-state error present in the response of attitude of a mini unmanned aerial vehicle. A problem that arises when performing pole placement controller is the selection of the poles, the Bessel approximation allows the selection of the eigenvalues in function to a specified response time for a feedback pole placement controller and state estimator (observer). On the other hand presents an optimal control technique combined with Kalman filter to estimate the state affected by perturbations in the system, both cases using the integral effect to eliminate the steady state error.These two control laws has the property of responding to a desired response according to a time or state response desired.
Rheological Fluids for Energy Absorbing Systems
Authors: Leonowicz Marcin , Kozłowska Joanna , Wierzbicki Łukasz
Published: October 2013

Two types of non-Newtonian fluids, magneto rheological (MRF) and shear thickening (STF) fluids, respectively were chosen as candidates for energy dissipation study in smart body armour. A series of magneto rheological fluids was synthesized on a basis of synthetic oil and carbonyl iron. The shear modules for the MRF containing 75 wt% of carbonyl iron, obtained in a magnetic field of 230 kA/m were as follows: complex shear modulus G* - 1.2 MPa, storage modulus G-1.2 MPa and loss modulus G 0.35 MPa.
The studies revealed also that the silica fumed, dispersed in polypropylene glycol or polyethylene oxide, demonstrates shear thickening properties. The best combination of the properties (high viscosity, obtained at high shear rate) represents the material composed of the silica fumed (SF) and PEO300. Change of the volume fraction of the SF and variation of the molecular weight of the oligomer enables tailoring of the STF properties.
Ballistic tests revealed that the structures containing PE bags with MRF (in magnetic field) or STF can enhance the protective performance of body armours providing their flexibility.
Effect on Deformation in Hydroforming under Different Forming-Control Paths
Authors: Ricky Kot Wai Kei , Chan Luen Chow
Published: October 2013

Weight reduction and the structural strengthening of frameworks have always been of great interest for automobile and bicycle manufacturers. In order to achieve this goal, manufacturers have always been looking for new materials and their corresponding processing technology. This paper focuses on investigating the most suitable forming-control path pattern for manufacturing magnesium-based alloy quadrilateral tubular components using the tube-hydroforming (THF) process for framework components. Conventionally, there are three usual patterns of forming-control path. Through numerical simulation, it was found that forming-control path C provided the best profile results. The simulation results were also verified by physical THF experiments which were carried out at around 270oC to fabricate the quadrilateral tubular component. A good agreement between simulation and experimental result was achieved, indicating that employing forming-control path C in the actual THF process provides the best forming results, minimizing the occurrence of wrinkling. The formability of such high value-added hydroformed tubular components can be predicted. Trial-and-error during the design stage can be avoided, which contributes to lower production costs.
Computer Aid of Mechanism Behaviour
Authors: Monkova Katarina , Fečová Veronika , Hutyrová Zuzana
Published: October 2013

It is often needed to define the velocity and acceleration of the body or some point of mechanism, if the input parameters of driver are known. As one of the most commonly used mechanisms in manufacturing or real practice can be considered the slotted-link mechanism. This mechanism is the part of the various machines and it has some special configurations created by making link infinite in length. It is often used to transform rotary motion into linear motion. The article deals with the computer aid of mechanism behaviour, specifically there are compared two approaches to the kinematic analysis of mechanism, the possibility to generate curve trajectory of selected point of mechanism or to make its motion envelope. The solution is presented on the mechanism usually used for the sliding feed of the packages in real practice.
Flow Measurement in Hydraulic System Using Acoustic Emission
Authors: Wang Guo You , Chen Xin Xiang
Published: October 2013

Flow rate is one of the most important parameters in hydraulic systems. This paper present a non-interposition flow measurement method for hydraulic systems, based on Acoustic Emission (AE) technology, by fixing an AE detector after the bend of the pipelines. The relationships between AE signals and the flow rate were investigated. Results show that the Root-Mean-Squared (RMS) values of the AE signals and AE energy could be used in hydraulic system, for flow measurement under specified system.
Colorimetric Properties of Photochromic Textiles
Authors: Vikova Martina , Vik Michal
Published: October 2013

Photochromism is a chemical process in which a compound undergoes a reversible change between two states having separate absorption spectra, i.e. different colors. The change of color in one direction occurs under influence of electromagnetic radiation, usually UV light, and in the other direction by altering or removing the light source or alternatively by using thermal means. Based on photochromic pigment we developed simple textile sensor sensitive to UV light, which is usable for visual indication of intensity UV-A radiation. Main attention was given to colorimetric properties of photochromic textiles during decay phase of photochromic color change, such as saturation change and fatigue resistance.
OPNET-Based Simulation and Research of Communication Network Performance in Digital Traction Substation
Authors: Liu Geng Ran , Luo Ying Hong , Zhou Yu
Published: October 2013

In order to keep pace with the development of IEC61850-based intelligent and digital power grid technology, a high-performance communication network must be configured in the process of electrified railway traction substation digitization to achieve the various functions of the substation automation system (SAS). First of all, the structure of communication network in a digital traction substation and the category of different data flow in it are analyzed in this paper. Secondly, the part of packet end-to-end delay (ETE Delay) is specifically discussed. In the last place, by using OPNET, a dynamic network modeling and simulating software, the networks both in substation level and process level is simulated and researched. The results show that the network built in this article can meet the real-time requirements of IEC61850.
Comparison of Effective Thermal Conductivity of Hollow Fibers by Prediction Models and FE Method
Authors: Zhu Guo Cheng , Militky Jiri , Wang Yan , Huang Juan , Kremenakova Dana
Published: October 2013

In order to evaluate the effective thermal conductivity (ETC) of hollow fibers, three theoretical models (the parallel/series model, quadrate model and cylindrical model) and finite element method carried out by ANSYS simulation were studied. The results showed that different theoretical models gave quite different effective thermal conductivities. The results from theoretical models and simulations were completely identical in the case when models had regular structures and the heating surface was the same kind of material. The ETC of hollow fibers from all of theoretical models and simulations decreased exponentially with the increase of air volume content. In addition, the ETC of hollow fibers from the first theoretical model were a bit higher than the results from simulation, whereas those from the second theoretical model were smaller than the results from simulation, and those from the third theoretical model were identical to the results from simulation.
The Efficacy of Impact-Absorbing Materials during Collision with a Soccer Ball
Authors: Taha Zahari , Hassan Mohd Hasnun Arif , Aris Mohd Azri
Published: October 2013

The uniqueness of soccer is that the players are allowed to use their head to pass the ball to a teammate of even try to score goal. Studies have shown that heading in soccer might be dangerous to the brain and could lead to brain trauma. There are headgears available for soccer players to protect their head, but studies have proven that currently available headgears are ineffective in reducing the impact caused by a soccer ball. The objective of this study is to test the efficacy of six different types of impact-absorbing materials in reducing the linear impact force from a soccer ball. The soccer ball was dropped from the height of 2.3 m onto a force platform to measure the impact force. A high-speed camera is used to record the motion and the impact duration, and then the coefficient of restitution for each impact was determined. Polyurethane (PU) comb-gel was found to be the most effective material in reducing the peak impact force and impulse compared with other materials. The reduction in peak force was associated with longer impact duration between the soccer ball and the PU comb-gel. However, the coefficient of restitution was reduced by 21.7%, implying that using the gel alone will reduce the speed of the ball after heading, thus reducing the performance of a player wearing it. A combination of PU gel and another stiffer material is suggested and the effectiveness of the composite will be the subject of future investigation.
Four Girls Mountains Savage Peak Climbing Theme Attractions Design
Authors: Shu Jian Ping , Fu Shi Ping , Wen Xiao Yuan
Published: October 2013

By the fieldwork method, describe the basic situation of the four girls mountains one peak, explores the savage peak climbing area construction. Results indicate that four girls mountains peaks of geographical conditions suitable for construction in rock climbing as the theme of tourist attractions, Can plan set low, medium level of rock climbing experience area, limit climbing, blundering area, Big rock point of the downhill, camp, viewing deck and tourists rest camps, etc. The camp content is rich and concentrated, With perfect scenic area security system protection as support, Can be used as the rock theme attractions of four maiden's mountain area, At the same time to enhance mountain guide, mountain rescue, mountain co-ordinator and other technical system to cultivate ideal training base.
Study on Optical Properties of Carbon Nanoparticles
Authors: Ge Peng
Published: October 2013

Carbon nanomaterials have generated a tremendous amount of attention in the scientific community. However, little or no attention has been paid to potential uses of carbon nanoparticles as optical properties of carbon nanoparticles in general. In the study reported herein, it shows the functions and properties of aqueous-suspended small carbon nanoparticles with different concentration and size.
Wear Behavior of Zirconium Oxide (ZrO2) Coating over the Surface of Electro Less Nickel Plating on Tool Steel Substrate
Authors: Madhankumar P.M. , Ilaiyavel S.
Published: October 2013

The knowledge of the properties of the coating in terms of wear resistance is of paramount importance in order to prevent the formation of severe damages. In this study, the wear performances of Zirconium oxide (ZrO2) coating over the surface of electro less nickel plating on aluminum and tool steel substrate is analyzed. The surface morphology of coatings was examined by Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectroscopy (EDX) .The wear tests were performed in a pin on disc apparatus as per ASTM G-99 Standard. The coefficient of friction and wear loss are evaluated. The results of the wear test established that coated pins exhibited the lowest average coefficient of friction and the lowest wear loss when compared with uncoated pins.
Recovery of Valuable Metals from Spent Hydrogenation Catalysts
Authors: Xu Ao Yun , Ye Tao , Zhao Shu Hui
Published: October 2013

The recovery method and process of tungsten, nickel and aluminum from spent catalyst was investigated, which had realized the comprehensive recovery of valuable metals about tungsten, nickel and aluminum. The results showed that leaching rate of WO3 was above 95% and the recovery was 90.85%, nickel and aluminum leaching rate were 98.27% and 90% respectively, the recovery were 91.83% and 92.78% respectively. It had got the conclusion that the technological process was developed, low-cost, high-extraction and process feasibility with good economic benefits and environmental benefits.
Compression Tests of Polycarbonate under Quasi-Static and Dynamic Loading
Authors: Hu Wen Jun , Huang Xi Cheng , Zhang Fang Ju , Chen Yong Mei
Published: October 2013

Strain rate response of polycarbonate was investigated under uniaxial compression at different rates of strain ranging from 0.0001/sec to about 8200/sec and different temperature ranging from 145k to about 423k. A split Hopkinson pressure bar was used to determine the dynamic compressive responses. A pulse-shaping technique was employed in dynamic compression experiment to ensure that valid experimental conditions were satisfied. Results show that, compared with quasi-static behavior, dynamic compression results in significantly higher compressive strengths for polycarbonate materials.
Investigation of Texturing for Mono-Crystalline Silicon without IPA
Authors: Zhou Su , Zhou Chun Lan , Zhu Jun Jie , Wang Wen Jing , Chen Jing Wei
Published: October 2013

Isopropyl alcohol (IPA) is widely used as an additive to enhance the alkaline texturing process of mono-crystalline silicon solar cells currently. However, due to its low boiling point and high volatilization, some negative effects are brought into large scale production especially in stability, cost and environment. In this paper, an IPA-free texturing process was studied by using other additive instead of IPA. The influences of concentration of KOH and additive on etching rate, surface morphology and weighted reflectance were investigated. It is found that the additive has an opposite effect on etching rate and pyramid size compared to KOH. The etching rate and average pyramid size decrease with the concentration of additive increased. The best weight reflectance of 10.8% and lowest average pyramid size of 1.1 um were obtained on mono-crystalline silicon surface by an optimized solution of 1.5 wt% KOH and 1.5 wt% additive at 80oC for 20 minutes. Finally, the effects of KOH and IPA-free additive on the texturing process were also discussed in detail.
Comparison of Biomaterials from Essential Oils in Five Parts of Magnolia sieboldii
Authors: Sun Guang Ren , Du Feng Guo , Wang Rui Jian
Published: October 2013

Essential oils were extracted from biomaterials of root bark, stem bark, twigs, leaves and flowers fromMagnolia sieboldiiby the means of steam distillation. Their chemical compositions of these essential oils were analyzed by GC-MS method and their flavor properties were evaluated based on the basic media of cold creams. The results showed that the highest yield of essential oils belonged to the essential oil from root bark and the lowest belonged to that from leaves; As to flavor, the parts of leaves and flower are more suitable for exploiting cosmetic products; Twigs, flowers and leaves belonged to the same cluster by Hierarchical cluster analysis on chemical components from these essential oils. The essential oil from leaves should be further exploited due to its good flavor for cosmetic products and a kind of newable natural resources, although this essential oil had lower extraction yeilds.
New Possibility of Visualization in Mechanical Engineering
Authors: Novak-Marcincin Jozef , Torok Jozef , Novakova-Marcincinova Ludmila
Published: October 2013

3D digitalization is still a very expensive and tedious process to transfer shapes of real object into a digital computer form. New devices are becoming more effective and more precise, but their price declines very slowly. This article offers perspective into the problems of 3D digitalization using a sensing device of favorable price, namely Kinect a motion game controller. This alternative offers scans of components surfaces that are from the viewpoint of precision and quality comparable with much more expensive devices.
Optimization of Elevator Production Line in its Flexible Improvement by the Value Stream Mapping Tool
Authors: Wu Wei Jie , Ye Guo Jie
Published: October 2013

The mixed model elevator controller production line flexible optimization project is established. The production bottleneck has been deeply analyzed and illustrated by the Value Stream Mapping Tool. Value stream analysis of the elevation controller production line status including dividing production, determining take time and visualizing production and problem analysis are implemented. The logistic moving distance is reduced from 501.8 m to 311.7 meters, the Cycle time, manufacturing time, number of operator and working hours are significantly reduced by 12.4%, 16.1%, 20%, 18.79% and 81.15% respectively.
Design of New Chain Transmission and Automatic Meshing Installation
Authors: Hou Hong Ling , Gao Wei Hong
Published: October 2013

The paper created a kind of new transmission way of chain, and applied it to a kind of crawl installation, which has realized installations rotational motion around a space big disc. Pneumatic motor played an important role in the program. This new chain transmission made use of pneumatic motor to drive sprocket, and applied cylinder to control sprocket and chains meshing and separation. It can satisfy demands of chain and sprocket with the variations of work conditions. It proves working course and the principle of this kind of transmission way in detail in the paper.
Study on High Strength Metal Cellular Automatic Forming Technology and Equipment
Authors: Qin Lei , Yue Wei Ling , Luo Chang Jie
Published: October 2013

The existing technology of stretching and forming metal honeycomb processing has obvious deficiencies. In order to develop metal honeycomb with high strength and better performance, this paper did extensive research on the technology of semi-regular hexagon corrugated structure forming and overlay process. Modern mechanical methodology was then employed to optimize high strength metal cellular automatic equipment and the best principle schema was selected. Each modules structure of the high strength aluminum honeycombs automatic overlay assembly equipment has been designed. Products were made based on the new design and went through a series of tests. The results demonstrated that this new method has greatly resolved the existing problems regarding the processing technology of aluminum honeycomb.
Study on Quality Control of the Laser Welding Joint
Authors: Wu Qiang , Xu Lan Ying
Published: October 2013

During laser welding process of high-strength galvanized steel, adopting guiding arc plate and the connecting arc plate can avoid harmful effect resulted in unstable melting width. The galvanized layer protecting joint is inevitably lost by having been burned, which affects stain resistance of welding joint. So salt water with the concentration of 3% is used in the corrosion test for the samples welded under different laser parameters, mass variation and metallographic microscopes are gained after joint being corroded. The test results indicate that the corrosion rates of the joint are different under different welding parameters during laser welding of high-strength galvanized steel; their average corrosion rates are coincident with that of base metal and laser welding technology hardly effect corrosion resistance of the joint.
Key Technology in Wind Turbine Transmission System Condition Monitoring: A Review
Authors: Dong Hai Jiang , Zhao Chun Hua , Wan Shi Qing , Zhong Xian You , Wang Wei
Published: October 2013

Key technology for the transmission system of wind turbine condition monitoring is researched in this paper. It gives a summary overview, including monitoring methods, signal processing methods and state recognition technology, data acquisition and transmission technology, programming languages. Understanding of the progress of the field is to provide technical reference and research inspiration for insiders.
The Motion Analysis of the Rehabilitation Main Motion Mechanism
Authors: Cai Yi , Jiang Deng Ke
Published: October 2013

By the theoretical mechanics and mechanical principle simplifying the part of mechanical motion of the machine of rehabilitation for slider-crank mechanism, it can be inferred to obtain the calculation formula about rehabilitation exercise. The derivation is based on the motion trails, velocity and acceleration. According to the requirements of this machine, the analysis of the motion can be gained with MATLAB. So the influence of the size of each bar on the system of motion will be got based on the comparing analysis results. Moreover the sizes of this machine of rehabilitation can be determined. The result of this paper is provided some theoretical basis for further studying the motion of the machine of rehabilitation.
Method of Automobile-Sensitive Component of Safety Belt's Dimensional Inspection Based on Machine Vision
Authors: Yu Bao Jun , Yang Ming , Zhao Guo Qing
Published: October 2013

The purpose of this paper is to measure the open size of automobile-sensitive component of safety belt by the method of machine vision. At first ,use the CCD camera to get images of the component. Then the software (NI Labview) can help to process those images easily. The needed edge points of the component in the picture can be found after image has been processed by filtering, gray-scale morphological processing, binaryzation and edge detection which has been implemented by Canny algorithm. Through those points we can get the result of the beeline equation by least square method, and finally detected the angle between the two straight lines which stand for different straight edges of the component .And the detected angle values is the open size we need .
DRNN Based Decoupling Algorithm of Self-Tuning Controller on Line
Authors: Bi Bo , Yang Xiao Yi
Published: October 2013

In order to solve the puzzle that the change of a loop circuit parameter results in operation parameters change of other loop circuit in the control system, the paper proposed a sort of decoupling control algorithm of online self-tuning based on DRNN. In the paper, it took the temperature and humidity control of a certain controlled object as an example, constructed the mathematic model, analyzed the coupling relationship among the system variable, designed the decoupling network. It transforms the multi-variable control system with coupling relationship as the independent single-variable control system so as to eliminate the effect among related control channels. Based on decoupling algorithm of DRNN proposed in this paper, it made the research on system simulation experiment, and the response of system simulation demonstrated that it is very small to the effect of two channels of temperature and humidity control after through decoupling, and realized the decoupling among coupling variables. The results of simulation research show that the proposed decoupling control algorithm is feasible and reasonable.
The Study on TiAl Based Alloy Blade Casting Structure by Bottom Pouring Vacuum Suction Casting
Authors: Ye Xi Cong , Zhao Wei Guang
Published: October 2013

In this paper, the bottom pouring vacuum suction casting is used, and the TiAl-based alloy blade with good face quality was obtained. Bottom pouring vacuum suction casting obtained Ti-47Al-5Nb-0.5Si alloy fine structure, the average grain size is 20um or less. Metal permanent forced cooling effect increases the undercooling degree, and the formation of Ti5Si3 can hinder the grain growth and the formation of nucleation particles, and Nb elements are conducive to the formation of B2 phase, and these three reasons refined the grain size.
A Workflow Management Model Based on Workflow Node Property
Authors: Deng Ning , Zhu Xiao Dong , Liu Yuan Ning , Li Yan Pu , Chen Ying
Published: October 2013

Workflow management systems are the powerful tools as well as the best supports for industries which involve series of complex workflows. Specifically, two of the main objectives of workflows management system are (1) ensuring the correctness and integration of workflow advancement, and (2) carrying workflow forward to the maximum extent automatically. To ensure the correctness and integration of workflow management system, in this paper, a workflow management method based on the workflow node property is proposed, and a workflow management system model is given. In addition, in the given model, an automatic advance mode is proposed to make the workflow is able to be carried on automatically.
Dynamic Model of SCARA Robot
Authors: Fang Jian
Published: October 2013

Design a robot system, it is the key technique to make kinematic analysis and build dynamic model based on the robot. This paper mainly provided introduction of the products dynamic model of four degree of freedoms SCARA robot which based on Kinematics analysis .The paper has certain reference value for actual application study the system with the same type.
A Method for Real-Time Medaka (Oryzias latipes) Detection Base on Machine Vision Technology
Authors: Zheng Hong Yuan , Zhang Rong , Yang Chun Wei , Hu Yan Qing
Published: October 2013

The Japanese medaka (Oryzias latipes) behavior monitoring system based on computer vision is very effective in the field of monitoring the safety of drinking water. But it is very difficult to detect the fishs body accurately and rapidly. In order to get the whole data of medaka in the real-time video sequence, a new approach to detect medaka is proposed in this paper which is based on 2D auto-threshold (OTSU), frame difference and background subtraction. With this method, the pixels in the image are divided into four parts: foreground, ghosting, foreground aperture and the others, then update background base on the data of the third part. At last, the whole fishs body can be got by some postprocessor. These methods are proved to be efficient to get the clean foreground and detect the fish in the real-time fish monitoring video.
The Effect of Annealing Temperature on the Properties and Second-Phase Particles of 0.4mm Galvanized Ti-IF Steel
Authors: Li Feng , Lv Jia Shun , Yang Hong Gang , Zhou Fang , Zhang Leng , Wang En Dong
Published: October 2013

A series of simulated continuum annealing experiments were done on 0.4mm Ti-IF by Gleeble-3800 thermal simulation machine at 700, 730, 760, 790, 820 and 850 degree. The optical microstructures of the specimens were characterized. Transmission electron microscopy analysis was carried out to investigate the second phase particles shape, size and distribution. The mechanical properties of the specimens were measured. The results showed that the yield strength and the tension strength of the steel decreased when the annealing temperature increased, the elongation increased when the annealing temperature increased, expect a maximum elongation value at 760 degree. Based on the microstructure and the second phase, the reason why there was a maximum value was discussed.
Study on the Forming Process of the Crossmember in Car Intermediate Floor
Authors: Wang Xue Xia , Guan Peng Chong , Li Hai Peng , Wang Li Hui , Zhang Na , Geng Xiao Xin , Li Su Nuan
Published: October 2013

Flanging and bending forming processes of the crossmember in car intermediate floor are investigated respectively by using numerical simulation technology. The numerical model of the crossmember was established and its press forming effect was simulated to determine the feasible process parameters affecting its manufacturability. Forming limit diagram and thickness distribution diagram are used to evaluate simulation results of different process schemes. And then optimum values of process parameters for flanging and bending are found, which can reduce the tendencies of wrinkling, springback and crackling during the stamping of the product.
Research on Continuous Traffic Safety Evaluation of Yangtze River Shipping
Authors: Xu Kai Jin , Liu Qin , Xu Lei
Published: October 2013

Traffic safety has characteristics of long-term and arduous, and continued safety is the essential goal of safety, the continued safety of Yangtze River shipping is not only an important part of Yangtze River safety culture, but also a concrete manifestation of long-term safety mechanism. This paper analyzes the affecting factors of the Yangtze River shipping safety, from the perspective of sustainable safety, extract with operational index of safety evaluation, construct of the Yangtze River shipping safety evaluation model, combined with the improved analytic hierarchy process , estimates the main aspects that affects the continued safety of the Yangtze River shipping , and the research results can provide scientific basis for the long-term management of Yangtze River shipping safety.
Lean Build Evaluation Index System of the Supply Chain of Health Research
Authors: Wang Jing , Ma Rong Quan
Published: October 2013

Constructed of lean supply chain health instead of overall supply chain performance and stability of the supply chain, such as the original concept to illustrate and evaluate the superiority of lean construction supply chain. Lean construction supply chain health evaluation index system, contain other supply chain node enterprise learning orientation, the industry healthy degree, core enterprise strength, node enterprise their own capabilities, interactive relationship between enterprises, governments, industry environment and so on six big indexes and 21 measures of points, promote enterprise healthy development, construction supply chain, play to the value of the evaluation index system.
The Design and Application of Dynamic Symbol
Authors: Huang Jing Wen , Wang Kun Qian , Chen Pei Hao , Bao Jian , Zhao Pei Zhi
Published: October 2013

With the development of digital media art,the modern sign emerges as the times require. This article mainly discusses the design philosophy of dynamic symbol in modern signs ,covering two aspects on visual language design ( dynamic design,time design and The special effects design ) and auditory language design ,and how to properly apply the dynamic symbol into propaganda of local Corporate Logo and boot animation.
Design and Optimization of a Novel Impedance Transformer
Authors: Nie Zeng Li , Chen Liu
Published: October 2013

Introduces the design method of a novel impedance transformer, proved its superiority, then optimized this new design method using optimized means, and designed the new optimized impedance transformer whose size smaller about 20 percent and bandwidth wider than the traditional stepped impedance transformer. Therefore, to simplify the design of ladder-impedance transformer and make its broadband larger and its size smaller is very meaningful for the microwave integrated circuits.
The Effect of Local Structure on the Performance of Curved Steel Box Girder Bridge
Authors: Yang Peng , Hou Shuang , Luo Yu Qiang
Published: October 2013

This paper considers material nonlinearity and geometric nonlinearity,study in-depth the force performance using the finite element method for space curved steel box girder bridge, through the six series of 20 specimens calculation and analysis, simulation different local structures curved steel box girder bridges reflect more accurately the role of various factors in the mechanical behavior. This in-depth analysis of the different local structures in space curved steel box girder bridge performance, for guiding the engineering design has a certain reference value for further study curved steel linear and nonlinear mechanical properties and stability lay a good foundation.
Application of a Data Interpolation Algorithm in Earthquake Data Interpretation
Authors: Su Xin , Kong Xiao Li , Du Xin
Published: October 2013

In earthquake data interpretation process, data body precision would not be very high as the workload of interpretation or data memory. Using the interpolate method mentioned in this paper, we can finish the interpolation without increasing the workload of interpretation, increase earthquake data precision, and acquire more information from earthquake data.
The Design of the Computer Aided Management System for Railway Electrification Engineering Logistics
Authors: Deng Yi Tao
Published: October 2013

The logistics of railway electrification engineering, because of its unique industrial characteristics and intrinsic characteristics, can't be directly applied to the existing departments, industries, and the management information systems of other countries at present. In this paper, the logistics system of railway electrification engineering is analyzed based on object oriented analysis and in combination with the supply chain management information system and the author thinks that the key to analyzing the logistics information management system design of railway electrification engineering lies in the expression to the railway electrification engineering transportation supply chain management logic structure, and finally a computer aided decision system (CPFR model) based on the railway electrification engineering transportation supply chain distribution is established using data mining technology and object-oriented data model.
An Improved Adaptive Array Algorithm for Terminals of TD-SCDMA System
Authors: Li Peng
Published: October 2013

The multi-access interference and quality of communication system can be greatly improved by beam forming technology when the smart antenna is adopted. This paper investigates the performance improvement given by a multi-antenna receiver on a mobile terminal , and a link level simulation scheme is presented based on TD-SCDMA system. The performance of dual smart antenna under different circumstance is analyzed, and three different adaptive algorithms are compared under the specifically modeled multipath fading channel. The simulation results show that a dual-antenna arrangement on a mobile terminal can achieve better performance than a conventional single antenna.
A Novel Symbol Rate Estimation Algorithm for Phase Modulating Signals in Wireless Communications
Authors: Zhou Peng , Li Chi Sheng
Published: October 2013

In this paper, we proposed a new symbol rate estimation algorithm for phase shift keying (PSK) and qua drawtube amplitude modulation (QAM) signals in AWGN channel First we constructe a delay-multiplied signal, from which we obtaine the modulated information. Then we calculated the instantaneous autocorrelation of the delay-multiplied signal to pick out the phase jump. To eliminate the restriction of frequency resolution in fast Fourier transform, we performed a Chirp-Z transform to find out the exact spectral line which represente the symbol rate of the signal to be analyzed. Compared with the existing algorithms, it is a simple solution that has a better performance and accuracy in low signal-to-noise-ratio channel conditions. Simulation results show that the probability of relative estimating deviation below 0.1% reaches 100% and the average and standard variance of absolute estimation deviation are at the magnitude of 10-2 when SNR is over 2dB.
Effects of Inter Multi-Pulses Interference on Data Rate of UWB Systems Based on Compressed Sensing
Authors: Nguyen Thanh Son , Guo Shu Xu
Published: October 2013

To study this issue, a new structure for UWB communication systems based on compressed sensing (CS) is proposed. This proposals focus on solving two main problems. First, building a system based on the CS to reduce the sampling rate at the receiver. Second, analyzing the impact of inter multi-pulses interference (IMI) to the ability to transmit high data rate of UWB communication systems. Experimental results show that, the IMI will be changed greatly depending on the different types of channel model. In the LOS channel model, the effects of the IMI negligible thus data transmission rate can be achieved up to several hundred Mbps. whereas for the NLOS channel models, the effects of the IMI large so data transmission rate can only reach a few Mbps.
Routing Search in VANETs Based on SUMO
Authors: Yao Jian , Peng Hao You , Wei Ying Bin
Published: October 2013

Using the TIGER database to create a realistic road map and establishing car following model and lane change model for simulation scene in SUMO. It evaluates the performance of the routing protocols including GPSR, ADOV and DSDR in this scene, and then analyzes their merits and drawbacks in Vehicular Ad-hoc Networks (VANETs) by the simulation of NS2. The results of the analysis show that the GPSR have the best performance in the three kinds of routing protocols. It proved that the protocols based on location information are more appropriate to VANETs. However, it is difficult to meet the needs in the VANET communication in urban scene, so the protocol needs to improve.
A New Network Security Evaluation Conceptual Model
Authors: Bian Jin Liang
Published: October 2013

Network security situation awareness model is the research basis in network security situation awareness. Through building this model, we can measure the relationships among system components and that between the components and environments. We put forward the conceptual model of network security situation awareness, and establish the model of current network security situation evaluation and future network security situation prediction.
Design of an Intelligent Home System Based on the Android System
Authors: Liu Xian Peng , Zhou Yi Bing
Published: October 2013

This project designed a kind of intelligent home system the general structure and the software and hardware solutions. Based on Arm cortex-M3 core,STM32 F103VCT6 carrys currently popular open-source mobile operation platform Android, and embeded wireless module CC2430 based on IEEE802.15.4, the system constitute the mobile base station and information processing center in Intelligent Home System Embedded ZigBee wireless module in mobile intelligent terminal, designed general module drives and develop kinds of applications by Android, the system process various data from all of the ZigBee node.