bluuebunny/crossref_metadata_2025 huggingface dataset:
Determination of N-Heptyl Pyridine Tetrafluoroborate in Water Using UV–Spectrum
Authors: Liang Wan Ting , Yang Qi , Tian Peng , Su Gui Tian , Jiao Mei
Published: October 2014

HEP-BF4ionic liquid is prepared by the double decomposition reaction of HEPB and NaBF4. The ionic liquid at room temperature used in the experiment has a significant absorption determined by UV spectrum within the range of 200-400nm, the maximum absorption wavelength of HEP-BF4ionic liquid is 252nm. The standard working curve of HEP-BF4ionic liquid is y=0.01529+0.00972X (R=0.99926). The recovery rate of HEP-BF4ionic liquid which is between 95.8% and 101%, is measured by standard addition method in water. The quantitative analysis of HEP-BF4ionic liquids in water using ultraviolet spectroscopy is simple, accurate and reliable.
Numerical Simulation of the Added Mass and Drag of a Uniform and Accelerated Motion Projectile
Authors: Kang Ning , Yao Bao Tai , Zheng Wei Qi , Hu Li Zhong
Published: October 2014

The added mass, drag and drag coefficient of a uniform and accelerated motion projectile in viscous incompressible fluid were calculated by numerical simulation and dynamic mesh method. The effect of velocity and acceleration on the added mass, drag and drag coefficient of the projectile in a launch tube was investigated. The results show that the variation rules of added mass, drag and drag coefficient are basically the same when the projectile moves at different speeds. The added mass, drag and drag coefficient become smaller and drag becomes bigger with the increase of speed. The variation rules of the added mass, drag and drag coefficient are the same as uniform motion when the projectile moves at different accelerations. The added mass and drag coefficient become smaller and drag becomes bigger with the increase of acceleration. These reveal that the motion region, velocity and acceleration have some effect on the added mass, drag and drag coefficient.
Tightness Simulation Analysis of Cooling Carrier in Three-Dimensional System in Package
Authors: Guo Wei Yuan , Zhou De Jian , Huang Hong Yan
Published: October 2014

For the tightness problem of cooling carrier in high-power three-dimensional system in package, this paper analyzes the tightness problem. First, this paper makes modeling and simulation of cooling carrier in high-power three-dimensional system in package, makes thermal simulation analysis based on existing fluid boundary conditions using ANSYS, gets the temperature of each structure of the cooling carrier in high-power three-dimensional system in package, the fluid temperature, the fluid pressure and other results. Then, based on the results of the thermal simulation analysis as the boundary condition of structural analysis of cooling carrier, this paper gets the stress results at the seals, and analyzes the tightness problem of cooling carrier after the structure simulation. This paper provides a good reference on design of cooling carrier in high-power three-dimensional system in package.
Research on Gas Gush Smoke Camouflage Device for Transport Vehicle
Authors: Huang Jian
Published: October 2014

Transport vehicle gas gush Smoke camouflage device, By use of its own power system and storage devices, Will be made in advance the size of the different, structure, function of polystyrene particles blown apart, Thus formed around the top of the vehicle and polystyrene particles as the main ingredients of camouflage a Smoke, To cover vehicles and interference against the infrared guidance, the purpose of the millimeter wave radar guidance weapon attacks.
Effect of Calcium Addition on the Cast Microstructure of a Kind of HSLA Steel
Authors: Liu Yan , Liu Yang , Wang Jian Ming , Wang Kai
Published: October 2014

Using the oxide of high melting-point and high stability to pin the grain boundaries is an effective method to improve the welding performance of the HSLA steel in this study. A kind of HSLA steel is designed in this experiment. The thermal stability second phase particles which would not be dissolved or aggregated at high temperature will be expected by means of adding calcium into the steel in the form of Si-Ca alloy. The effect of calcium addition on the cast microstructure of HSLA steel was analysed. The results show that the cast microstructure is mainly consist of lamellar and acicular ferrite, a small amount of pearlite and bainite. Compared with the original steel, there are acicular ferrites presenting in the experimental steel after adding 5 wt% Ca, which are the microstructure that we hope to get. The acicular ferrite will have a positive impact on the mechanical properties of the subsequent rolled steel.
Comprehensive Governing to Reduce the Vibration and Noise of Cooling Machine in the Limited Space
Authors: Zhou Bo , He Sen Liang , Dong Li Guo
Published: October 2014

The sound absorption structure was designed by the results of noise test in a supermarket refrigeration machine room. And determine the rate of perforation, the thickness of the absorber and the orifice diameter from the wide-band noise characteristics of the limited space. Reducing the reverberation value of the space .In order to reduce the effects of vibration, modeling the double sources exciting and double output double-deck vibration isolation system with intermediate mass weight .Calculate the foundation speed amplitude, which method determine the isolation parameters which effects the isolation effect. In the final noise test, the noise of refrigeration room has been reduced from 68.3 dB(A) to 63.2 dB(A) and the vibration floor has been significantly reduced which has got a good vibration and noise reduction effect.
Analyzing the Influence of Test Force on Instrumented Indentation Test
Authors: Liu Yang , Chen Rong
Published: October 2014

For the problem that the value of test force will influence the result of instrumented indentation hardness test, the relation between test force and instrumented indentation hardness , indentation modulus were investigated. 55 groups of tests were carried out, in which the test force were divided to 11 different levels. On the basis of 110 test data, differences were analyzed and the relation curves were plotted by Origin. And the relative difference value was proposed. Results show that when 19.61N≤Fmax≤98.07N, the change of test force makes little influence on instrumented indentation test (IIT) results and coefficient of variation(CV); when 0.98N≤Fmax≤9.81N or 196.14N≤Fmax≤294.21N, the change of test force makes remarkable influence on IIT results and CV.
Effect of Calcium and Magnesium Addition on the Inclusions Distribution in the Cast Microstructure of HSLA Steel
Authors: Liu Yan , Wang Kai , Liu Yang , Wang Jian Ming
Published: October 2014

A new technology to obtain a fine-structured and high-toughness HAZ of HSLA steel for high heat input welding is developed using metallurgical thermodynamics, physical chemistry of metallurgy and material processing methods synthetically in this study. A kind of HSLA steel is designed in this experiment. The thermal stability second phase particles which would not be dissolved or aggregated at high temperature will be expected by means of adding calcium and magnesium into the steel in the form of Si-Ca alloy and Mg-Zr alloy, respectively. The effect of calcium and magnesium addition on the morphology and distribution of the inclusions in the cast microstructure of HSLA steel was analysed. The results show that the distribution of the inclusions is more dense and uniform with respect to the raw steel, and the size of the inclusions is smaller than the ones in the raw steel after adding Ca and Mg elements. Ca and Mg elements can accelerate the nucleation of the inclusions. The nucleation rate of the Mg element is relatively higher. The number of the inclusions in the adding Mg steel decrease more slowly relative to the adding Ca steel with the extension of the steelmaking time.
Finite-Time Neural Network Adaptive Control of Under-Actuated Robots
Authors: Wu Zhong Qiang , Liu Li Ling , Zhao Li Ru
Published: October 2014

The finite-time neural network adaptive control of under-actuated robot is investigated, and a kind of multistep control strategy is used. First the transformation of dynamics model is made, and the passive joints are driven to desire positions by the coupling among joints, then the passive joints are locked. When the passive joints are locked to other operating point, the system becomes the one with structure uncertain. Combining the theory of finite-time control with neural network adaptive control, a finite-time neural network adaptive controller is got which can make the position tracking of joint rapidly. The simulation shows the effectiveness of the controller.
Intuitive Control System for Industrial Robot Application Using Smartphone
Authors: He Ren Qing , Yan Gang Feng
Published: October 2014

Most of industrial robots are still programmed using the typical teaching process, through the use of the robot teach pendant. In order to simplify the teaching process, an intuitive control system using smartphone is proposed. The smartphone has multiple motion and position sensors in it. When smartphone is being held in hand, the motion sensors capture posture of hand which the input of robot controller is depended on. The smartphone and robot controller communicates wirelessly through TCP/IP protocol. The system can complete typical operations of teaching process. Compared with the typical teaching process, this system is intuitive and much easier to use.
Photocatalytic Properties of ZnO and Ag Doped ZnO Thin Films
Authors: Wang Ying Lian , Ye Jun Yao
Published: October 2014

Pure ZnO thin films and Ag doped ZnO thin films were prepared on quartz substrates by sol-gel process. Structural features and UV absorption spectrum have been studied by XRD and UV-Vis-Nir scanning spectrophotometer. Taking phenol as pollutants, further study of the effect of different annealing temperature and Ag dopant amount of ZnO films on photocatalytic properties was carried out. The results showed that, the optimal annealing temperature on photocatalytic degradation of phenol in this experiment was 300 °C, the best molar ratio of ZnO and Ag was 30:1, which was better than pure ZnO film greatly. Excellent adhesion, recyclable and efficient degradation Ag doped ZnO thin films were found in this experiment.
Modulation and Demodulation Techniques in Indoor Visible Light Communication System
Authors: Wang Hao , Han Ze Yu
Published: October 2014

Visible light communication technology is a emerging wireless and optical communication technology developed after invention and application of white LED.In this paper, we have a research based on indoor visible light communication system of lighting white LED,discuss of the visible light communication channel characteristics,detailedly analysis of the indoor visible light communication link. This paper focuses on the modulation and demodulation method applied to visible light communication. In the past visible light communication is mainly used off keying modulation,however, the data transfer speed is limited due to the influence of ISI .This paper presents a solution based on OFDM modulation and demodulation, to reduce the impact brought from inter-symbol string under high data transfer speed.Based on data analysis and computer simulation,the program presented in this paper can be used as indoor lighting and high-speed data transmission.Finally, give scheme to achieve visible light communication modulation and demodulation,provide a theoretical basis for further experiments.
Blast Furnace Burdens Behaviour of Materials during Softening and Melting
Authors: Liu Jie , Zhou Ming Shun , Zhai Li Wei , Zhang Hui , Xu Li Bing
Published: October 2014

In order to get the reasonable sinter basicity and suitable burden structures in Ansteel, the metallurgical performance of sinter, the softening-melting properties with different burdens were studied systematically in laboratory. The results show that, the reducibility and the reduction disintegration are improved, and the mineral compositions of the sinter become reasonable with the basicity increasing. When the basicity reaches 1.95-2.15, the burden structures with single sinter will achieve good softening-melting performance, and the maximum pressure maintains at a low level. When the sinter collocates with pellet and the basicity reaches 1.90-2.15, there will be narrow softening and melting zones and a low S property value. With the addition of natural lump ore, the softening zone will be widened and the melting zone will be narrowed, but burden’s comprehensive performance will be bettered. The assessment indexes obtained for the interactive reaction between burdens can assess the reasonableness of burden structure. Considering the reactivity index and the economic cost, the reasonable proportion of lump ores in blast furnace needs to be controlled within 15%-20%.
Design of Intellective Tire Pressure Monitoring and Alarming System
Authors: Bai Qiu Chan , Jin Chun Xia , Yang Ding Li , Zheng Rong Jian
Published: October 2014

The monitoring system of tire pressure is regarded as a security product of a new generation of vehicles equipped with high-technology. At present the tire pressure monitoring system can not detect tire pressure all the whole time and tire malfunction can not alarm in time too, this paper proposes an intelligent tire pressure monitoring and alarming system. This paper introduces the overall structure of system and describes the implementation method of system design from two aspects of hardware and software. The system can monitor the tire condition in time and alarm for abnormal situation. It has some advantages in low power consumption, reliability and security.
Robust Control Method Based on Machine Learning for Boiler Combustion System
Authors: Zhang Hao , Zhang Ya Jie , Zhang Yan Gu
Published: October 2014

In this study, we presented a boiler combustion robust control method under load changes based on the least squares support vector machine, PID parameters are on-line adjusted and identified by LSSVM, optimum control output is obtained. The simulation result shows control performance of the intelligent control algorithm is superior to traditional control algorithm and fuzzy PID control algorithm, the study provides a new control method for strong non-linear boiler combustion control system.
Inductance Measurement for PMSM Using Instantaneous Flux Linkage Method
Authors: Cao Yan Ling , Cao Ping , Wen Yan Dong
Published: October 2014

The dq-axis inductances are important for the voltage decoupling control, torque estimation and steady-state performance analysis of a PMSM machine. In this paper, a measurement method is proposed based on the dq-axis instantaneous flux linkages calculation. The rotor is locked by a positive d-axis current, and then a proper AC current is assigned respectively to the d and q-axis reference current in order to cover the various current ranges. The instantaneous flux linkages are calculated by the integration of dq-axis current and voltage offline. Finally, dq-axis inductances are computed by the integrated flux linkages divided by the dq-axis current.
Design of Differential Focusing System in Microscopic Scanning Platform
Authors: Zhang Tao , Wang Yu Zeng
Published: October 2014

Focus on the current method for microscopic small displacement, hysteresis and other shortcomings, Proposed a high motion precision, simple structure differential spiral focusing method, By stepper motor control exercise with differential screw which two identical pitch rotation, so that improved the motion accuracy.
Research on Preparation of Soil and Water Conservation in Civil Engineering
Authors: Zhang Hong Yuan
Published: October 2014

With the development of economic society and urbanization, there are more park projects in large and medium cities, and the preparation of soil and water conservation plan for thus construction should be mainly considered from equilibrium of earth-rock, flood control and drainage, temporary protection and greening consider, only this can we effectively control and reduce soil erosion of the park project.
Study of Railway Passenger Flow Forecasting Based on Season Index
Authors: Huang Ying , Lu Zheng Ye , Ji Shou Wen
Published: October 2014

Accurate and timely analysis of passenger flow can provide decision support for railway transport enterprises to make reasonable arrangement and adjustment of passenger lines operating plan. Through the observation of the month’s passenger flow variation, season index method was proposed to forecasts passenger flow. Then we gives a specific example to forecast passenger flow combined with the exponential smoothing and seasonal index method, based on the analysis of data and the influence of external factors. Finally, this paper specifies the application prospect of this method, in order to play a guiding role in the actual work.
Modeling of Corrosion Fatigue Crack Growth of X70 Pipeline Steel and Numerical Simulation of Crack Propagation
Authors: Tian Yu , Wang Jing , Liu Yang
Published: October 2014

To solve the problem that the change of curve slop was not considered in the common corrosion fatigue crack growth, a new corrosion fatigue crack propagation model based on Pairs formula was established in this paper; which corrected parametersCandnof Paris formula at the same time. Based on the fatigue crack propagation experimental data of X70 pipeline steel in hydrogen sulfide corrosive environment, the key parameters of the model were fitted. Based on the new model, a FRANC3D software was used, and the corrosion fatigue crack propagation processes of X70 pipeline steel in corrosive solution were simulated. It was demonstrated that the simulated fatigue crack growth processes obtained by the boundary element method were very close to the test results, and the maximum error is less than 10%. Therefore, boundary element method can be used to predict the life of corrosion fatigue on the project.
Synthesis and Blood Compatibility of Fluorinated Polyurethane Elastomer
Authors: Jia Run Ping , Zong An Xin , He Xin Yao , Wei Lu
Published: October 2014

In this paper, for the purpose of improving the hemocompatibility and surface tension of thermoplastic polyurethane (TPU) elastomers, poly butylene glycol ether hexafluoride fluoride ether glycol (PF) mixture with polytetramethylene ether glycol (PTMEG) was used as soft segments to synthesize a series of fluorinated thermoplastic polyurethane elastomers (FTPU) by two-step polymerization. The hemocompatibility in vitro was evaluated with platelet-rich plasma (PRP) contact tests. It was found that almost no platelet adhesion and activation was observed on the surface of FTPU elastomer when fluorine content was above 6wt% because of its low surface energy. The results indicated that fluorinated chain can be easily enriched on the surface of films because of higher C-F bond energy which due to greater micro-phase separation.
Effects of Whole-Body Vibration on Strength of Lower Extremities in Healthy Male Adults
Authors: Long Xiao An , Liu Bei Xiang
Published: October 2014

In this paper, the authors investigated the effects of whole body vibration on strength of lower extremities. Thirty-three college healthy male students participated in this study. They were randomly divided into three trial groups. The trial consisted of 9 wks, each of which possesses 3 sessions.The test has been carried out pre- and post the trials. After analyzing the data,the findings showed that (1) the traditional resistance significantly increased strength of lower extremities on both absolute and relative peak torque and power, (2) the conventional training combined with vibration training can significantly increase the peak torque of extensors in lower extremities, and (3) the authors believed that the vibration training may be a better training method to improve the strength or power in lower extremities.However, the mechanism should be further investigated.
A Novel Information Security Model for Securing Information Systems
Authors: Yang Xia
Published: October 2014

Securing information system in current information era is very important task. This paper presents a novel security model in order to secure sensitive information systems. This model combines protection, detection, recovery and control mechanisms to secure information system in their development lifecycle, which is more effective than the traditional ones.
Characteristics of Cotton Fabric Modified with Ionic Liquid as Modifier
Authors: Song Ming Shu , Cheng De Hong , Lu Sheng , Lin Jie , Hao Xu , Lu Yan Hua
Published: October 2014

in this paper ionic liquid 1-butyl-3-methylimizolium chloride was applied to modify the cotton fabric. The modified cotton fabric was characterized by FT-IR spectra, microscopy determination and the thermogravimetric analysis (DSC). The dyeing performances of the modified cotton fabric were determined. The results indicated that the dyeing performances of the modified cotton fabric were more than that of the unmodified cotton fabric.
Information Technology about Sci-Tech Novelty Retrieval
Authors: Chen Jiang Fan , Lin Jing , Han Chuang
Published: October 2014

This paper proposed several existing problems in sci-tech novelty retrieval (Science and Technology Novelty Retrieval), including communications with customers, resource constructions, retrieval strategies, work ethics, expert consultation and audit, and so on. For higher quality, the first thing is to keep full communications with customers in details and hold accurate retrieval strategies. Secondly, personnel quality and work ethics are playing important factors in the process of sci-tech novelty retrieval. When disputes or difficulties are coming into being in the process, advice of experts will strongly support sci-tech novelty retrieval.
Component Model Data Extraction Based on STEP in Virtual Assembly Technology
Authors: Qiang He Qun , Qian Chun Hua , Gong Sheng Rong
Published: October 2014

Component model information share is the premise of virtual assembly, but tranditional Component 3D model is not the suitable data format used on Intenet. Realization the transformation from tranditional 3D data to Web-enable data base on STEP standard is feasible. In this paper, we discuss and resolve several problems, such as: Mapping between the EXPRESS data model and the RDBMS, Lexical analysis of STEP file, the tansformation form STEP file to data-base file.
Application of Association Rule Mining Technology in Collection and Management of Wireless Sensor Network Node
Authors: Wang Guang Jiang , Jin Shi Guo
Published: October 2014

Association rule mining is an important data mining method; it is the key link of finding frequent itemsets. The process of association rules mining is roughly into two steps: the first step is to find out from all the concentration of all the frequent itemsets; the second step is to obtain the association rules from frequent itemsets. This paper analyzes the collected information of nodes in wireless sensor network and management. The paper presents application of association rule mining technology in the collection and management of wireless sensor network node.
Design of Digital Signature Scheme Based on Elliptic Curve Cryptosystem
Authors: Jin Shi Guo , Wang Guang Jiang
Published: October 2014

Digital signature is electronically password technique for electronic document signature. Elliptic curve cryptography is a method of public key cryptography based on elliptic curve mathematical. Digital signature scheme consists of three processes: initialization process, the signature generation process and signature verification process system. This paper analyzes the elliptic curve cryptosystems mathematical principle and technical performance. The paper proposes design of digital signature scheme based on elliptic curve cryptosystem.
Application of Improved Ant Colony Algorithm Technology in Development of Routing Protocol in Wireless Sensor Network
Authors: Lu Tian Jun , Wang Yue
Published: October 2014

This paper discusses the relevant theoretical problems of ant colony algorithm, analyzes the defects of the traditional ant colony algorithm, and proposed an improved ant colony algorithm to solve these problems. Wireless sensor network routing should satisfy both to ensure data transmission and reduce the amount of communication requirements. The paper presents development of routing protocol for wireless sensor network based on improved ant colony algorithm technology. The simulation results show the effectiveness of this algorithm.
The New Period Encryption Technology in the Application the Study of Network Security
Authors: Lin Jing
Published: October 2014

with the rapid development of computer, network is also in constant development. A variety of network attacks and the corresponding means alsobreed, network security has become now the human network life about to ask.One of the most important methods to protect the network security is a dataencryption, its application in computer network security greatly improves thesecurity of network information transmission.
Applied-Information Technology in Cloud Payment with Mobile Games Payment
Authors: Shu Xiao Ling
Published: October 2014

This paper from the payment problem Mobile Games industry starting, analyzes the Mobile Games payment status of the industry, design and payment security analyzed payment channel selection, charging point will affect the success rate of pay, even affect the game player interested in the game and game developers gain. This paper focused on improving the efficiency of Mobile Games industry to pay, to cloud payment methods of payment for the mobile platform, focuses on the cloud payment interface technology of cloud payment platform architecture design and Mobile Games game player props purchase.
Research on Subway Fire Emergency System Based on Virtual Roaming
Authors: Zhong Bin , Zhang Lin , Li Xiao Ping , Yang Zhang
Published: October 2014

Due to the special nature of the fire at subway station, the traditional fire simulation and fire drills are difficult to carry out. It is difficult to obtain accurate data of fire, and emergency program design is also difficult to achieve the greatest degree of optimization. This paper discusses the advantage of virtual roaming technology, builds the model of subway station by 3Dmax. By webmax virtual roaming we can build the virtual tour system of subway station fire emergency, which provides the user with a fire simulation environment of metro station. At the same time, we also introduce the corresponding key technologies and the overall program system which we have designed. More methods for optimizing the fire emergency plan also have been provided.
Rapid Development Platform of NC Turrets Based on the Construction of B/S
Authors: Fu Xiang , Lu Xi , Wen Jing
Published: October 2014

NC Turrets include Servo Turrets and Power Turrets. The structural differences of them are addressed. In this paper, data storage structures of turret parts, turret automatically assembled, finite element analysis, optimization design and 3D model browse in the WEB are studied. Based on the construction of B/S, a NC Turret rapid development platform which is composed by Network user tier, WEB business tier and Data tier is constructed. The platform integrates a CAE analysis module based on ANSYS, a parametric design module based on SolidWorks and a reliability analysis module based on MATLAB. The Rapid Development Platform can perform the new product design and reliability analysis, and an optimal develpoment design of NC Turrets can be realized rapidly and efficiently.
Improving Workshop’s Production Efficiency by Applying Industrial Engineering Methods
Authors: Cao Yang Hua , Kang Xiu Cui
Published: October 2014

One workshop’s production efficiency was evaluated and improved according to the evaluation results. The work sampling was applied to evaluate the efficiency of machines and men. The facility layout was improved by applying the systematic layout planning so as to reduce the waiting time and handling waste; the multi-machine-tools operation strategy was designed by applying man-machine operation analysis to reduce workers waiting time; in addition, some other improvement suggestions were proposed from the angle of group technology and part’s moving method. The work sampling shows that these improvement measures can improve the workshop’s production efficiency effectively at lower cost.
Analysis of LOGINK Service Innovation with Information Technology Based on the Theory of Product Hierarchy
Authors: Sun Kai Di , Ji Shou Wen
Published: October 2014

In this paper, based on the theory of product hierarchy, the service innovation of the national transport logistics public information sharing platform were analyzed. We divide the development process of LOGINK into three stages, summarize the level of service at each stage of each product, and by analyzing the results, obtain the conclusion that LOGINK service innovation is incremental and not radical.
Data Processing in the Application of Grey Relational Analysis Model in Regional Economic Openness of Evaluation System
Authors: Yin Liang Liang , Han Zhu Hua , Wu Meng
Published: October 2014

In the process of multi index analysis and evaluation, the index value is normalized and standardized through non-dimensional processing of the original data. The index weight is determined according to each index relative principal component contribution through principal component analysis and principal component extraction. Then, a combined evaluation model will be formed through the grey relational analysis, calculation of each index according to grey weighted relative degree. Scientific applicability of the model will be evaluated through regional economic opening degrees.
Study on Synthesizing Ammonia with Material Properties under Normal Temperature and Pressure by Microwave Plasma Method
Authors: Zou Qian , Song Jun Lei
Published: October 2014

NH3was synthesized from H2and N2under normal temperature and pressure by microwave plasma. The effects of microwave input power, ratio of H2/N2, the amount of total material gas concentration and catalyst on the synthetic reaction were studied. The volume fraction of NH3can reach 0.58% under the optimal condition.
Investigation of Cutting Performance of the Ceramic Inserts in Terms of the Surface Roughness and Tool Wear at Turning of PMD 23 Steel
Authors: Kaçal Alaattin
Published: October 2014

In this study, the cutting performance of ceramic insert was investigated in terms of surface roughness and tool wear in turning of hardened PMD 23 powder metallurgical (PM) steel. The turning tests were performed with three different cutting speeds, feed rates and depth of cuts in dry cutting condition. Analysis of Variance (ANOVA) was performed in order to determining of the effect of cutting parameters on the average surface roughness (Ra). The experimental results and indicated that the feed rate was most significant parameter on changes in Ra. Furthermore, images of cutting insert used in turning tests were taken using Scanning Electron Microscope (SEM) for determining of the wear types and its mechanisms.
Researches on the Robot Obstacle Avoidance Based on Fuzzy Control
Authors: Yao Jin
Published: October 2014

With the continuous development of modern sensor technology, coupled with the integration of artificial intelligence and a variety of emerging computer technology, it makes robots more intelligent and diverse. So the ability of the robot to complete the task is also valued and widely used. In this paper, the whole covered area of the local path planning uses a fuzzy control algorithm, which uses the robustness and an action of perception based on the biological behavior of the fuzzy control algorithm combined with itself. For obstacle avoidance system of mobile robots, we put forward the avoidance strategy of fully contacting the obstacles. And we have conducted a deep study about the theory and implementation methods.
Research on Wearable Human Motion Capture and Virtual Control
Authors: Jiang Fei , Yu Ying Jie , Yan Da Wei
Published: October 2014

This paper designed the posture initialization calibration method by the inertial sensor in human limb movement with any attitude toward. By initializing the target specific actions can be implemented to identify timing corresponding sensors and joint, and calculate the coordinate transformation relation of human skeletal coordinates corresponding to each inertial sensor's coordinate system and the 3D human skeleton model. Then through the coordinate conversion of inertial sensor attitude coordinates and depth first traversal calculation on human skeletal tree, real-time update of human motion body attitude data, driven simulation of human skeletal model by human motion, realize the real-time tracking of motion capture.
Study on Seepage Control in Complicated Hydrogeological Conditions on the Right Bank of JinPing-I Hydropower Station
Authors: Wu Yan
Published: October 2014

With consideration of the special hydrogeological conditions and layout characteristics of the hydraulic structures, the seepage control measures of dam abutment and underground powerhouse on the right bank of JinPing-I hydropower station is drawn up. Based on the three dimensional finite element analysis of seepage control with dry area virtual flow constant mesh analysis method, the rationality of the seepage control measures of dam abutment and underground powerhouse has been verified and the key factors affecting the effect of seepage have been compared. In combination with the curtain of dam abutment, the curtain of underground powerhouse is reasonable. The results showed that the steel liner of penstock after the curtain is necessary.
Design and Optimization of Beam Based on ISIGHT and ANSYS
Authors: Yin Xu , Zhu Ming Juan , Ji Ai Min
Published: October 2014

Taking rectangular beam as an example, an integrated analytical method was proposed based on optimization software ISIGHT and finite element software ANSYS. First of all, in order to obtain the parameters of beam, the paper used ANSYS to establish the corresponding model and perform the simulation. Then, the optimization model was integrated with ISIGHT. At last, the model was optimized with NLPQL algorithm and the lightest weight of beam under specified constraints was obtained.
Monitoring Equipment for Sailing Based on ARM
Authors: Chang Xiao Feng , Liu Bin
Published: October 2014

This article describes a new Multi-Parameter Training and Monitoring Equipment for Sailing which integrates the data collection, analysis, storage functions, transmission and real-time display. The equipment uses the ARM technology, sensor technology and wireless data communication technology to simultaneously collect the indices of longitudinal and cross dips, course, speed, location, wind speed, wind direction, etc. It can monitor and record the movement of several athletes at the same time. The self-made special instrument will offer the athletes training assistance and provide reliable technical monitoring.
The Solution and Management of VPN Based IPSec Technology
Authors: Zhang Guo Fang
Published: October 2014

The rapid development of electronic businesses raises the need for exchanging information between enterprise networks via internet. If a secure connection is necessary then a virtual private network (VPN) is essential. IPSec use encrypting and encapsulating technology in client device and establishes a secure tunnel connection. The private network built by IPSec technology can ensure good transmission performance and service quality over public networks. This paper analyses the architecture of IPSec and describes the process of creating a site-to-site IPSec VPN between header and branch of enterprise over internet. In addition, this study analyses the encryption at the boundary of the network and concludes a propose some practical problems need to consider inside enterprise network.
The Design and Implementation of Multi-User Data Sharing Platform for Remote Monitoring System Based on Virtual Instruments
Authors: Ma Guo Sheng , Xia Xiao Bo
Published: October 2014

Remote data monitoring system which adopts virtual instrument usually applies data sharing, acquisition and remote transmission technology via internet. It is able to finish concurrent data acquisition and processing for multi-user and multi-task and also build a personalized virtual testing environment for more people but with fewer instruments. In this paper, we’ll elaborate on the design and implementation of information sharing platform through a typical example of how to build multi-user concurrent virtual testing environment based on the virtual software LabVIEW.
Design of Automatic Baby Nursing Trolley Based on Intelligent Sensing Technology
Authors: Chen Guo Qing
Published: October 2014

This paper study and solve the design and manufacture of baby care car, its unique function is the baby carriage can be used as a baby bed, when necessary, it can also become a nursing car, sensor in the vehicle can be real-time detected whether the baby bed wetting and induction time will give parents information feedback; the humidity sensing probe controlled by single chip microcomputer and with the bottle clamp flexible connecting rod, can realize the baby auxiliary nurse; remote wireless communication system can allow parents to monitor children's state. The design of intelligent baby carriage, to enhance the technological content of products, promote the innovation of design China bassinet production, has the important practical significance to seize the smart baby car market.
Research on Synthesis of Triazine Ring and its Isomerization
Authors: Xu Jing
Published: October 2014

This paper designed and synthesized a series of different chain length of phthalonitrile-terminated oligo (phthalazinone imide), it has good water solubility, and can be under normal atmospheric pressure to form the s-triazine rings-containing thermosetting oligo (phthalazine imide). Compared with the traditional thermosetting resin, the resin has the advantages of high temperature resistance, high strength, flame retardant, resistance to chemical corrosion.
Research of CAN Bus in the Coal Mine Field Data Transmission Based on Reliability
Authors: Luo Li
Published: October 2014

Under the current situation, China's rapid economic development, various new science, emerge in an endless stream of new technology, under the environment of coal mine industry, seize the opportunity, by virtue of its original advantages, coupled with technology introduction and innovation consciousness of the play, ushered in a new period of development, into the modern coal mining era. CAN bus technology is a new technology which has the typical data transmission in coal mining, the introduction of a certain degree of CAN bus technology, not only improve the efficiency of data transmission, at the same time, in terms of reliability and greatly enhance. In this paper, to a certain extent on the introduction of the CAN bus technology, and on this basis, based on the CAN bus in the coal mine field data transmission reliability research and analysis
Mapping Research Fronts of Big Data Study in 21st Century
Authors: Meng Liang Qiu
Published: October 2014

In this paper, we aim at researching status and finding the research fronts in the field of Big Data in recent 15 years. This study applies CiteSpace software to the visualization analysis about the literature data from the year 2000 to 2014 in Web of Science, and to carry out preliminary discussion on the research hotspot and the fronts of Big Data. It concluded that Big Data have been exerting so great influence on the world that increasing researchers from different countries and institutes have continuously researched it in recent years.
Research on the Distributed Data Mining Cloud Framework Oriented Internet of Things
Authors: Guan Wei , Lu Hui Juan , Chen Jing Jing , Wu Jie
Published: October 2014

The rapid development of Internet of Things imposes new requirements on the data mining system, due to the weak capability of traditional distributed networking data mining. To meet the needs of the Internet of Things, this paper proposes a novel distributed data-mining model to realize the seamless access between cloud computing and distributed data mining. The model is based on the cloud computing architecture, which belongs to the type of incredible nodes.
Design and Implementation of Embedded Database Based on File System – The Design and Implementation of EDB
Authors: Zhao Ye , Lu Guo Ying , Wang Li Ying
Published: October 2014

The architecture of the system is divided into some modules according to the operating level: interface layer, the database engine layer, and data access layer, database maintenance module and data storage module. This paper discusses in detail the data definition design and the important function of EDB and realizes the EDB management implementation details. The paper introduce in details the EDB system architecture, the design of physical storage structure and basic table structure. Through the actual use, the database system is suitable for embedded systems with limited resources, has good portability.
Study on the Data-Mining Based Mechanism for the Occurrence of Ship Collision Accidents Caused by Human Factors
Authors: Li Hong Xi
Published: October 2014

In order to effectively analyze the mechanism for the occurrence of ship collision accidents caused by human factors, an accident causing chain was constructed using the Bayesian network structure and the data mining algorithm. According to navigator's cognitive behavior forming process and human errors, the accident cause network structure was constructed using the Bayesian network structure by analyzing 120 typical cases about ship collision accidents caused by human factors; a collision accident cause chain was obtained by mining the frequent combination of human errors using data-mining based Apriori algorithm and JAVA programming language.
Research on the Algorithm of Image Matching Based on Improved SIFT
Authors: Qiao Xiang Chen
Published: October 2014

The paper analyze and improve the SIFT optimized algorithm, and proposes an image matching method for SIFT algorithm based on quasi Euclidean distance and KD-tree. Experiments show that this algorithm has matching more points, high matching accuracy, no repeated points and higher advantage of matching efficiency based on keeping the basic characteristics of SIFT algorithm unchanged, and provides precise matching point to generate precise image stitching and other related fields of the follow-up product. At the same time, this method was applied to the layout optimization and achieved good results.
Research on Anti-Collision Algorithm of Short Distance Data Communication Based on Binary-Tree Disassembly
Authors: Hu Zhong Yue
Published: October 2014

This paper puts forward adaptive anti collision algorithm based on two fork tree decomposition. New search algorithm built on the basis of binary-tree algorithm, using the uniqueness of the label EPC, to estimate the distribution of label by slot allocation, the huge and complicated two fork tree is decomposed into several simple binary-tree by search the collision slots for binary-tree, so, it can simplifies the search process. The algorithm fully considers4 important performance parameters of the reader paging times, transmission delay, energy consumption and throughput label, the simulation results show that, the improved anti-collision algorithm is obviously improved performance than other two fork tree algorithm, it is more suitable for RFID anti-collision protocols.
Mine Multi-Point Temperature Measurement and Control Network Remote Monitoring System Research
Authors: Chen Guo Qing
Published: October 2014

The production of coal mine environment is bad, very prone to various risk. In order to ensure the normal coal mining and production safety, the need for an important factor in the mine monitoring, real-time and effective such as temperature, wind speed, gas, dust, pressure and distance. Among them, the temperature acquisition and monitoring of the coal mining face and key parts of underground roadway, is to ensure that the monitoring project of the safety production in coal mine. In light of the current situation of practical work experience and mine temperature monitoring, design a kind of mine based on wireless sensor network as the core of the multi point temperature monitoring system, proved by practice, this system has many advantages such as high reliability, high precision and low energy consumption, the effective realization of the real-time and accurate temperature signal acquisition and monitoring of mine.
Study on Preparation of Porous ZnO Microspheres and Photocatalytic Performance
Authors: Qi Lei Lei
Published: October 2014

This paper introduces the method of porous ZnO microspheres by sodium citrate assisted hydrothermal synthesis with a mild, economy: first, basic synthesis globose precursor of Zinc Carbonate Hydroxide, then followed by thermal decompose the precursor to obtain porous Zinc Oxide microspheres. The morphology and structure of the precursor and synthesized porous microspheres were characterize by a series of methods, and did a series of experiments by changing dosage and reaction time of the sodium citrate and urea, finally the paper discussed the formation mechanism of porous ZnO microspheres.
Researches on the Network Security Evaluation Method Based on BP Neural Network
Authors: Zhang Yi Bin , Yan Ze Quan
Published: October 2014

This paper first describes the basic theory of BP neural network algorithm, defects and improved methods, establishes a computer network security evaluation index system, explores the computer network security evaluation method based on BP neural network, and has designed to build the evaluation model, and shows that the method is feasible through the MATLAB simulation experiments.
Parametric Representation for Geometry Variation in Digital Mechanical System
Authors: Liu Wei Dong , Sun Yuan
Published: October 2014

Ideal geometry is mainly represented by several parameters in traditional CAD system. Based on these parameters, ideal geometry can be dynamically constructed to build the entire CAD entity; however, the modeling of variated geometry by parameters is not included, and parametric representation for variated geometry is introduced in this paper; sets of parameters for different types of geometry variation are discussed. Based on parametric representation for variated geometry, the translation and orientation error of part that affected by the variation of geometry is calculated, the process for converting geometry error to parametric part location error is introduced.
Research on CNC Machining Model and Error Analysis for Spiral Bevel Gear
Authors: Liu Zhi Gang
Published: October 2014

This paper analyzed the adjustment principle and calculation method of parameters for CNC spiral bevel gear milling machine, and establish the models of NC machining of spiral bevel gear milling machine. Through the calculation of examples, we acquire the machine tool axes of the instantaneous position when CNC spiral bevel gear milling machine process. The paper establish simulation machine model of spiral bevel gear milling machine and the simulation processing. The simulation results meet the spiral bevel gear milling machine functional verification requirements.