bluuebunny/crossref_metadata_2025 huggingface dataset:
Rapid Prototyping Combined with Finite Element Technology in the Application of the Intertrochanteric Fracture
Authors: Wang Jian Ping , Sun Shao Kai , Zhang Yan Hui , Liu He Jia
Published: October 2014

Based on the patient’s CT data, a three-dimensional fracture model was established, meanwhile a solid model of equal proportions with the rapid prototyping machine was built. Depending on completely knowing the condition of damage, surgeons made different operational plans and simulated the reset of the fracture on the solid model. In addition, according to the fixed schemes and positions of resetting simulation, the femoral nails were fixed in Imagware and simulations was done on the loading condition with single leg in Abaqus. By simulating the physical models of fracture resetting, surgical techniques has been improved. Through comparing the simulate results of different types of femoral nails, the reasonable program of implant was determined. The accuracy and validity of the model programs were verified by intraoperative and postoperative follow-up. Thus a more feasible surgical program method was established.
The Dynamic Model of the Hoisting Monitoring Robot Using in Underground Coal Mine
Authors: Zhang Yue Min , Wang Yu Qing
Published: October 2014

In this paper, regarding the monitoring robot body as the research object, the dynamic model of the monitoring robot hoisted on the monorail electric vehicle has been established with surface defects of I-steel rails as exciting forces. In this model, the contact stiffness and damping between the monorail electric vehicle’s wheels and rails have replaced with equivalent stiffness and equivalent damping.
Analysis and Research of Soft-Start Mode Applied to Large Capacity and Long-Distance Belt Conveyor
Authors: Yang Zhi Bo , Qu Zhen Peng
Published: October 2014

Through the research on the structure and properties of different soft start device applied to long distance and large capacity belt conveyor. Analysis and comparison of technical characteristics of some used soft start of this kind of belt conveyor, and then get the reasonable way of soft start. In order to provide optimization scheme of application of belt conveyor in long distance and large capacity in the actual production for enterprise.
An Intrinsically Safe Study on Accuracy Wireless Vibration Sensor
Authors: Liu Jun Li , Xu Chun Juan , Wang Li Feng
Published: October 2014

In order to solve the problem of shearer automation for the automated mining, analysis and processing by a plurality of sensors or observation information sources is the most promising solution to automatically control the shearer’s posture, while there is no vibration sensors with intrinsically safety that can be directly equipped on the shearers under coal mines. In the paper, study on a new intrinsic safe mode vibration sensor to solve the problem, it includes the hardware system designing and data collection programming. At the end, an experiment proves that the intrinsic safe wireless vibration sensor is able to collection the three-dimensional vibration data reliably and in time compared with the other vibration sensors.
Wireless Condition Monitoring and Control of Air Compressor Fleet System Based on the Internet of Things
Authors: Zhang Ye Ming , Li Zhi Guo , Cai Mao Li
Published: October 2014

The whole optimization control and health maintenance of air compressor fleet system in coal mine is the current key problems urgently to be solved in pneumatic system application. The test system of wireless condition monitoring and control for air Compressor fleet is setup and the hardware structure of test system is put forward. Overall energy efficiency and piecewise energy efficiency concept of air compressor fleet system is proposed in this paper. The overall efficiency and the energy-saving potential of compressed gas supplying system are quantified by the method of Capacity on Demand. Network optimization control algorithm for the air compressor fleet system is proposed for the better management of the compressed air system.
Friction and Wear Properties of S136/WC-Co Friction Pair in Cold Atmospheric Pressure Plasma Jet
Authors: Chen Fa Ze , Liu Xin , Huang Shuai , Xu Wen Ji
Published: October 2014

To study the friction and wear properties of S136/WC-Co friction pair, friction and wear tests in air jet, nitrogen jet and nitrogen cold plasma jet atmospheres are carried out. The morphology and composition of friction surface are analyzed by camera, scanning electron microscope and energy-dispersive X-ray spectroscope. The wear behaviors and mechanism of anti-wear of the three jets to S136 are also discussed. The experiment results prove that the reactive species in the nitrogen plasma jet contribute to the generation of oxidation film on the friction surface quickly to reduce the wear of S136/WC-Co friction pair in real-time.
Geometrical Parameters Calculation of Flexible-Rod Whetstone-Seat Vibration Subsystem of the Ultrasonic Honing Device
Authors: Wang De Sheng , Wang Dong , Gao Guo Fu
Published: October 2014

In order to achieve the local resonance of flexible-rod whetstone-seat vibration subsystem of the ultrasonic honing device, and using the analysis method of control theory, to regard the flexible-rod and whetstone-seat as the independent part in dynamics, their natural frequency and the vibration displacement function respectively are calculated by adopting the model of vibration with uniform section rod. Then the relationship between the natural frequency and the geometrical parameters of flexible-rod and whetstone-seat are established. The experiments shows that the computed result approximates the actual of flexible-rod whetstone-seat vibration system relatively. For the design of flexible-rod whetstone-seat vibration system with better vibration performance, it has the significant reference value.
Analysis and Optimization for the Dynamic Characteristics of Drilling & Boring Machine Spindle System
Authors: Yao Ran , Liu Jian Hui , Ma Lei , Yao Bin
Published: October 2014

Taking the spindle system of CNC drilling and boring machine that exclusively used in the latest developed bearing cage as study subject, this paper investigates the optimization of the spindle system by improving the support bearing structure and optimizing the spindle span to get the optimal span. Through modeling analysis, the fundamental frequency of the optimized spindle increase 16.9%, which provides effective-proof performance optimization.
Study on Grinding Force of High Volume Fraction SiCp/Al Composites with Rotary Ultrasonic Vibration Grinding
Authors: Xiang Dao Hui , Zhang Yu Long , Yang Guang Bin , Liang Song , Wang Yan Feng , Qin Qiang , Ma Guo Feng
Published: October 2014

High volume fraction SiCp/Al composites were grinded in rotary ultrasonic vibration aided grinding in this experiment, exploring the effects of different grinding parameters (grinding depth, grinding wheel speed, feed rate) on grinding force and the material removal mechanism with ultrasonic grinding. The results showed that grinding force of ultrasonic grinding is lower than the ordinary grinding in the same grinding parameters. Studying on material removal mechanism of ultrasonic vibration grinding is bound to have important theoretical and practical significance for the improvement of grinding processes and the development of mechanical according to the advantages of grinding and ultrasonic machining.
Keywords: High volume fraction SiCp/Al composites; ultrasonic grinding; grinding force
Electroless Deposition of Silver Nanoparticles and Nanowires in Ethylene Glycol
Authors: de Guzman Nathaniel , Mechilina Aurelia , Balela Mary Donnabelle
Published: October 2014

Silver (Ag) nanostructures, such as nanoparticles and nanowires, were formed by electroless deposition in ethylene glycol at 160 °C for 1h. Polyvinyl pyrrolidone (PVP) were used both as a capping agent and structure-directing agent to prevent agglomeration and promote the growth of Ag nanowires. The effect of its molecular weight and concentration on the morphology of Ag was examined by X-Ray Diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis showed peaks corresponding to the face-centered cubic (FCC) structure of metallic silver. At low PVP molecular weight of 10,000, spherical Ag nanoparticles with a mean diameter of about 170 nm were formed. A mixture of Ag nanoparticles and nanowires were produced when the molecular weight was increased to 55,000 and 360,000.
Finite Element Study of Deformation Behaviour of Al-6063 Alloy Developed by Equal Channel Angular Extrusion
Authors: Nemati J. , Sulaiman S. , Majzoobi G.H. , Baharudin B.T.H.T. , Azmah Hanim M.A.
Published: October 2014

The objective of this work is to evaluate the equivalent plastic strain levels induced by equal channel angular extrusion (ECAE) in an annealed Al-6063 alloy after six passes at a temperature of 200°C following route A with a constant ram speed of 30 mm/min through a die angle of 90° between the die channels using the finite element method (FEM). ECAE process is simulated using the DEFORM-3D software through a three-dimensional analysis. Grain refinement is simulated by forcing the element size to zero. It is found that for a very fine mesh the PEEQ converges to 1.046.
Relative Effect of Sand Blasting and Acid Etching on the Surface Roughness of Pure Titanium and Titanium Alloy for Dental Implants
Authors: Nadar Yashkta Shivalingam , Kutty Muralithran Govindan , Abdul Aziz Abdul Razak
Published: October 2014

The objective of this study is to investigate the effect of sandblasting and acid etching on the surface roughness and morphology of pure titanium and titanium alloy to compare their relative contribution. Both of these samples were first sandblasted and then acid etched using HCL and H2SO4for different duration and temperature. The results of this study indicated that the roughness value for pure titanium increased after acid etching while the opposite occurred for the titanium alloy. It is suggested that the decrease is due to significant over etching of the protective titanium oxide layer on the alloy.
Experimental Investigation of Effect of Rotary Abrasive Jet Nozzle on Coating Removal Rate and Surface Finish
Authors: Smart D.S. Robinson , Rufus D.P. , George Lijin
Published: October 2014

An abrasive jet machine can be used effectively for removing the existing coating on the surfaces .A rotating, variable angle abrasive jet nozzle has been designed to produce a swirling abrasive jet .The horizontal and the vertical striking angles of the abrasive jet nozzle has been adjusted as 50° ,40° respectively [1] . Investigations have been carried out to evaluate the effect of Garnet and SiO2 abrasives and the speed of the rotation of the nozzle on coating removal rate. Coated Mild steel, Galvanized Iron and Aluminium were used as specimens for investigations. The rotary abrasive jet nozzle provides the swirling abrasive jet and intensifying the shearing action as the speed increases gradually and reached up to 355 rpm. The surface roughness of the coating removed samples for various rotary speed of the abrasive jet nozzle were observed and measured. The surface roughness was found to be more closely associated with the speed of rotation of the abrasive jet nozzle.
Kinetics of CO2 Adsorption on Microwave Palm Shell Activated Carbon
Authors: Nasri Noor Shawal , Hamza Usman Dadum , Saidina Amin Nor Aishah , Mohammed Jibril , Ahmed Murtala Musa , Mohd Zain Husna
Published: October 2014

Activated carbon was prepared from palm shell by pyrolysis followed by K2CO3 assisted microwave heating. Effects of temperature on adsorption capability and kinetics of the sorbent towards CO2 adsorption was also studied. The results indicated that, the amount CO2 adsorbed decrease as the adsorption temperature increases. The kinetic data were obtained using a static volumetric method at 303.15, 343.15, 378.15, and 443.15 K and at pressures up to 4 bar. The kinetics of CO2 adsorption on the activated carbons was examined using the pseudofirst-order equation and pseudosecond-order equations. Weber and Morris intraparticle diffusion model was applied to examine the mechanism of the adsorption system. Lowest CO2 uptake recorded was 0.3 mmol/g at 443.15 K and 0.5 bar while the highest was 7.45mmol/g obtained at 303.15 K and 4 bar. The kinetics followed pseudosecond-order model. Pore diffusion is not the sole rate diffusion mechanism.
The Structural Application of Bio-Composites: A Comparison of Mechanical Properties between Bio-Composites and Glass Reinforced Composites
Authors: Rasid Z.A.
Published: October 2014

Green composite or bio-composite refers to a type of composite materials that consists of natural fibres and bio-polymers as its constituents. The green composite has generated great interest in research world and industries due to its advantages of renewability, biodegradability and sustainability. However due to its low mechanical properties, bio-composites has limited structural application, the area that is dominated by glass reinforced composite. As such the aim of the numerous researches on the bio-composite is to prepare green composite to have properties that can replace GRP as structural components. This paper is to compare mechanical properties of bio-composite taken from vast literature and the glass reinforced polymer composite. The properties under consideration include the tensile strength and modulus, flexural strength and modulus, elongation at break and the impact strength. It was found that with careful consideration on the chosen types of fibres and matrix, the treatment given to fibres and matrix and the manufacturing process, bio-composites can be at par or better than the glass mat thermoplastic composite.
Structural Transition in Thickness Dependent CSD Grown Nanostructure Manganite Thin Films
Authors: Tank Tejas M. , Thaker Chetan M. , Bhalodia J.A.
Published: October 2014

In this report, manganite thin films of La0.7Sr0.3MnO3(LSMO) of various thicknesses are carried out by using Chemical Solution Deposition (CSD) technique on(100)– oriented single crystalline LaAlO3(LAO) substrate. Desired film thickness was achieved via control of the number of deposition sequences. X-ray diffraction (XRD) study shows that 1stand 3rdcoatings of LSMO films have the cubic structure while 5thand 7thcoatings of LSMO films have hexagonal structure. As the film thickness increases, increase in lattice parameter(c)was observed. Surface morphological study was carried out using Atomic Force Microscopy (AFM). RMS roughness and grain size were found to increase with the thickness. It is interesting and noticeable that the structural transition occurs from cubic to hexagonal are clearly observed through XRD and AFM results. In electrical resistivity measurement, show the resistivity of all the samples decreases as the film thickness or grain size increases, but the trend inverts for the film with 7 coatings and the maximum MR with the value of 21.35 %, in Hexagonal structure.
First Principle Calculations of Pressure Induced Structural and Electronic Properties in Americium Monochalcogenides
Authors: Pataiya Jagdeesh , Aynyas Mahendra , Makode Chandrabhan , Singh Archana , Sanyal Sankar P.
Published: October 2014

The tight-binding linear muffin-tin orbital (TB-LMTO) with in the local density approximation is used to calculate total energy, lattice parameters, bulk modulus, density of states and energy band structures of americium monochalcogenides at ambient as well as high pressure. It is found that AmX (X=S, Se, Te) compounds are stable in NaCl – type structure under ambient pressure. We predict a structural phase transition from NaCl-type (B1-phase) structure to CsCl-type (B2-phase) structure for these compounds in the pressure range of 26.0 – 15.0 GPa (AmS to AmTe). From energy band diagram it is observed that AmX compounds exhibit metallic behaviour. The calculated ground state properties such as lattice parameters and bulk modulus are in general good agreement with available experimental and theoretical data.
First Principles Study on Structural, Electronic, Elastic and Thermal Properties of OsAl and OsSi
Authors: Acharya Nikita , Fatima Bushra , Chouhan Sunil Singh , Sanyal Sankar P.
Published: October 2014

First - principles study on structural, electronic, elastic and thermal properties of B2phase OsAl and OsSi have been reported usingab-initio full potential linearized plane wave method (FP-LAPW) method within generalized gradient approximation (GGA). We have calculated ground state and electronic properties such as lattice constant (a0), bulk modulus (B0), its pressure derivative (B0') and density of states at Fermi level N(EF). Lattice constants are in good agreement with other results. The elastic constants (C11, C12and C44) are also calculated for these compounds. Ductility has been analyzed by Pugh’s rule (B/GH) ratio and Cauchy’s pressure (C12-C44). To the best of our knowledge, these properties are calculated first time.
Research on Coordination Control Strategy of Hydraulic Retarder and Friction Brake of Coach
Authors: Wang Kui Yang , Tang Jin Hua , Li Guo Qing
Published: October 2014

Based on the matching relationship between curve I of ideal braking force distribution and curve β of brake’s braking force distribution, the effect of hydraulic retarder on braking stability of coach is analysed, and the ideal braking force distribution strategy between hydraulic retarder and friction brake is put forward. The coordination control strategy of braking force between hydraulic retarder and friction brake is analyzed, and the dynamic coordination control strategy based on double closed-loop control structure and the coordination control algorithm with Anti-lock brake system (ABS) based on state machine are put forward. According to the above-mentioned coordination control strategy between hydraulic retarder and friction brake, the braking torque of hydraulic retarder can be made full use of and the degree of wear and heat load of friction brake can be greatly reduced in the premise of ensuring braking safety and comfort.
A Service Oriented Product Development Process Online Control Model
Authors: Zhu Y.Q. , Li Xiang Yu
Published: October 2014

For implementing the online control of product development process in Micro-Plant, an integration control platform is proposed based on web service technology. Professional software such as G2, GAMS, Matlab, are wrapped as web services based on multi-agent technology, and the web service named Data_Service is given to implement the data communication among different web services, then we can control and optimize the product development process in Micro-Plant. Finally the practicability and validity of the integration control platform are verified through the application in the product development of Nipagin ester.
Study and Application of Impurity Removal Methods in Tobacco Production
Authors: Li Zhe Kun , Fan Yu Jin , Zou Yu Sheng , Wu Ming Yi , Liu Ge Yi
Published: October 2014

Foreign body removal is a key process to improve the inherent quality of cigarettes and the level of tobacco purify has significant impact on the quality of cigarette. For removing metal debris, you can use the metal detector; removing feathers, film sheet, twine, weeds and other lightweight debris, you can use the winnowing; removing debris that have same mass as tobacco, you will rely mainly on online foreign body removal system, including camera systems or laser optical sorting system. In this paper, methods of purifying tobacco production and their applications were studied, it has important references for other impurity applications in different areas.
Height Automatic Measurement Technique Based on a Single Camera
Authors: Li Dao , Tu Dan
Published: October 2014

In many cases, the color information is useless. If we extract non-color characteristics of detection target without increasing complexity of the system,we can improve efficiency in the use of video.This paper presents a technique which must be realized based on the assumption that the body is perpendicular to the ground can measure human’s height by single camera. This technology has a strong practical in the field of Public Security Criminal Investigation
Research of Intelligent Building Security Automatic Monitoring Alarm System
Authors: Ma Li , Cao Li Ying , Zhao Yue Ling
Published: October 2014

In this study by analyzing the types and characteristics of intelligent building, this paper expounds the intelligent building security automatic monitoring alarm system of layered structure: the presentation layer, control layer, processing layer, transport layer and execution layer, support layer, collected layer, describes the system composition: front-end information acquisition system, information transmission control system, information management system, automatic alarm system. The system can improve the efficiency of the intelligent building security.
Prediction Research of Transformer Fault Based on Regular Extreme Learning Machine
Authors: Chen Xue Zhen , Zhu Yong Li , Pei Fei
Published: October 2014

To predict the concentration of dissolved gas in transformer oil, and then realize the transformer latent fault prediction, can effectively prevent unnecessary loss caused by the transformer faults .In order to improve the transformer fault prediction ability,this paper proposes a new transformer fault prediction model--Regular Extreme Learning Machine (RELM) prediction model。RELM algorithm introduce structure risk minimization principle on the basis of traditional ELM, using the balance factor to weigh the empirical risk and the risk of structure size, further enhance the generalization performance of ELM. Verified by examples, the proposed prediction model based on the RELM in this paper achieve better generalization performance and prediction accuracy in the forecast of gases concentration dissolved in transformer oil.
HXMT Planning and Scheduling Based on Evolution Method
Authors: Li Da Lin , Gu Yan Feng , Bai Meng , Liu Wen
Published: October 2014

The Hard X-ray Modulation Telescope (HXMT) is an X-ray satellite devoted to a sensitive all-sky survey and to study timing and spectral characteristics of X-ray sources. In this paper, the requirement of planning for the satellite is described at first. And then based on the discussion of the observation requirement and the constraints of planning, an evolution scheduling algorithm is designed. The algorithm is based on NSGA-II. The observe windows of each observation are used as gene to composing a chromosome. The genetic operations, including selection, crossover and mutation, are based on the DNA coding. Results are presented according a test set, and some conclusions and possible improvements will finally be outlined.
Semi-Supervised Word Sense Disambiguation via Context Weighting
Authors: Zhao Guo Zhen , Zuo Wan Li
Published: October 2014

Word sense disambiguation as a central research topic in natural language processing can promote the development of many applications such as information retrieval, speech synthesis, machine translation, summarization and question answering. Previous approaches can be grouped into three categories: supervised, unsupervised and knowledge-based. The accuracy of supervised methods is the highest, but they suffer from knowledge acquisition bottleneck. Unsupervised method can avoid knowledge acquisition bottleneck, but its effect is not satisfactory. With the built-up of large-scale knowledge, knowledge-based approach has attracted more and more attention. This paper introduces a new context weighting method, and based on which proposes a novel semi-supervised approach for word sense disambiguation. The significant contribution of our method is that thesaurus and machine learning techniques are integrated in word sense disambiguation. Compared with the state of the art on the test data of the English all words disambiguation task in Sensaval-3, our method yields obvious improvements over existing methods in nouns, adjectives and verbs disambiguation.
A Service Oriented Jewelry Image Watermarking Encryption Method
Authors: Li X.Y.
Published: October 2014

To avoiding tampering with jewelry image, based on web service technology, a jewelry image watermarking encryption service is proposed by encapsulating the watermarking encryption module which runs in the local network environment. The service can judge the barcode regions in the jewelry image, and get the jewelry serial number by analyzing the barcode content. The practicability and validity of the watermarking encryption service is verified through the application in the jewelry inspection business management system.
Cuckoo Search Algorithm for Solving Ill-Conditioned Linear Equations
Authors: Ma Yu Feng , Li Yue Guang
Published: October 2014

In this paper, according to the characteristics of ill-conditioned linear equations. A Cuckoo Search Algorithm was used to solve the systems of ill-conditioned linear equations, the algorithm was experimented and the experimental results show that the algorithm to be successful in locating multiple solutions and better accuracy. At the end the paper made a simple comparison with the traditional methods..
Synthesis of Block Terpolymer PS-PDMAEMA-PMMA via ATRP and its Self-Assembly in Selective Solvents
Authors: Zhang Wei , He Jin Xin , Liu Qiong , Ke Gang Qiang , Dong Xia
Published: October 2014

Well-defined triblock terpolymer polystyrene-block-poly (N,N-Dimethylaminoethyl methacrylate)-block-poly (methyl methacrylate) (PS-PDMAEMA-PMMA) is synthesized via sequential Atom transfer radical polymerization (ATRP) with designed molecular weights characterized by HNMR and GPC. Annealing in Chloroform which is a selective solvent for PS and PMMA induces the formation of micelles with patchy coronas, and subsequent dialysis against cyclohexane which is selective only for PS enables the stacking of the precursor micelles into core-compartmentalized self-assemblies. The micellizatinon and self-assembly behaviors are investigated via DLS and TEM.
An Image Encryption Scheme Based on Generalized Arnold Map and Chinese Remainder Theorem
Authors: Ye Rui Song , Ye Ming , Yao Hao Qi , Ye Wen Hao
Published: October 2014

A novel image encryption scheme comprising of one permutation process and one diffusion process is proposed. In the permutation process, the image sized is expanded to one sized by dividing the plain-image into two parts: one consisting of the higher 4bits and one consisting of the lower 4bits. The permutation operations are done row-by-row and column-by-column to increase the speed. The chaotic generalized Arnold map is utilized to generate chaotic sequence, which is quantized to shuffle the expanded image. The chaotic sequence for permutation process is dependent on plain-image and cipher keys, resulting in good key sensitivity and plain-image sensitivity. To achieve more avalanche effect and larger key space, Chinese Remainder Theorem is applied to diffuse the shuffled image. The key sensitivity and key space of the proposed image encryption have been analyzed as well. The experimental results suggest that the proposed image encryption scheme can be used for secure image and video communication applications.
Research on Cloud Computing Resources Provide Optimization Method
Authors: Shi Rui Peng
Published: October 2014

Cloud computing core issues of resource management research is to achieve efficient resource sharing and dynamic configuration. In this paper, the background of cloud computing technology to study how to optimize cloud computing data center resources optimal allocation problem. This paper compares and analyzes the application field of traditional algorithms and heuristic intelligent algorithm.
A Distributed Processing Framework of Incremental Text Clustering under the Background of Big Data
Authors: Tan Zhen , Chen Yi Fan , Shi Zhong Lin , Ge Bin , Hu Yan Li , Tang Da Quan , Zhang Hai Kuo
Published: October 2014

In the era of big data, due to the rapid expansion of the data, the existing incremental text clustering algorithm has the drawback that the efficiency of algorithm will sharp decline with the time and data volume increasing. Because of poor timeliness and robustness, the algorithms are hard to be applied in practice. In this paper, we propose a distributed model framework of Single-Pass algorithm based on MapReduce, the experiments result of increment text cluster is accuracy, the algorithm effectively improve the computing efficiency of the algorithm and real-time of result. Algorithm has a great prospect under the background of big data.
A Big Graph Clustering Algorithm Based on MapReduce
Authors: Leng Yong Lin , Zhang Qing Chen
Published: October 2014

Graph clustering is an important technology in graph analysis area, the measure of similarity between node of graph is the presise for graph clustering. SimRank algorithm is a kind of universal structure similarity calculation model which is proposed by Jeh and Widom. SimRank algorithm using iterative method to calculate the similarity between nodes, so the time and space complexity is very high. With the rapid increase of data, the ability of single machine can not meet the requirement of the large-scale data calculation. In this paper, the distributed SimRank algorithm was proposed based on Mapreduce and was used to measure the similarity of graph. Then the distributed AP clustering algorithm was designed for clustering analysis graph nodes. The experimental was executed to compare the clustering running time and speedup and results show that the method can efficiently complete graph nodes similarity measure and clustering the large graph effectively.
Multiplexing QR Decomposition Architecture Using the Givens-Rotation Algorithm for Adaptive Beamforming System
Authors: Zhu Shao Bin , Bao Zhi Qiang , Lu Guang Yue
Published: October 2014

When the number of arrays increases, the triangular systolic array for QR decomposition of the received data matrix has an increasing significantly hardware resource consumption. In order to reduce the hardware cost, the triangular systolic array (TSA) architecture could be modified into a multiplexing architecture called MQRD which could call the same module at the different time. Then MQRD was designed and simulated on the software ISE. More, MQRD was added to the adaptive beanforming system to study its computing performance. The results showed that MQRD not only kept the numerical stability and scaled well, but also reduced the hardware resource cost efficiently. Theoretical analysis and simulation results show that MQRD can reduce hardware cost efficiently. So, MQRD is a better choice than TSA in the multi-antenna system.
Research of Riveting Structure Identification and Characteristic Parameter Analysis Based on SVM
Authors: Yang Jian Feng , Jiang Gang , Chen Jian Fei
Published: October 2014

In order to help department to make a decision whether the equipment need maintenance, some people trained the sample of characteristic parameter for riveting structure, and set up the model to recognize target by computer vision. However, we are difficult to find the research result about the affiliation between the characteristic parameter of the riveting structure and the model. In this paper, we make the image processing first, and use SVM (Support Vector Machines) algorithm to train the sample of characteristic parameter for rivet head. Finally, we research the affiliation between the characteristic parameter for the rivet head and the mathematical model, and test the accuracy of the model.
An Energy-Saving Anti-Collision Algorithm for the Active RFID Systems by Decreasing the Overhearing Slots
Authors: Liu Chu , Li Jian Cheng , Zheng Li Ming , Yang Qing
Published: October 2014

Anti-collision algorithms for active RFID system which are based on the ALOHA always have a serious overhearing problem because of the random selection in the system. Although the active tag can avoid the overhearing problem to some extent by applying the tree-based deterministic anti-collision algorithm, the system will using more time on account of more reader queries. We propose a novel algorithm which based on the superiorities in the recalled protocols. Simulation results show that the algorithm effectively reduce excessive inventory listening and system delay.
A DSP-Based System Design for Image Capturing and Transmitting
Authors: Wang Yong Cheng , Zhao He Ming , Shao Lei , He Li
Published: October 2014

In present paper, a DSP-based image capturing and transmitting system is described. As a shortage of peripherals on DSP, external image capturing and data transmitting components are needed in this case. A CMOS image sensor was used to capture images, and an Ethernet MAC controller with PHY was used to transmit image data. In addition, a CPLD was used as the co-controller for timing control. ARP, IP and UDP were functioning during data transmitting through Ethernet. The Driving Mechanism of two main chips and implementing of the protocols were described in detail. Images displayed on the PC show that the system provids good performance. The system is low-cost, simple and low-power.
Measures of 7-qubit Stabilizer Codes for Graph States
Authors: Wang Yun Yun , Jiang Li Zhen
Published: October 2014

Most quantum error-correcting codes constructed are stabilizer codes which are potentially more efficient and significant.Under the concept of graph states theory, we focused on 7-qubit graph states characteristics of stabilizer codes, by calculating and analyzing the entanglement properties of graphical codes. For the instance of code ((7,1,3)) with 16 inequitable graphs, the figure of entanglement properties can be measured.And we analyzed 7-qubit graph characteristics of stabilizers codes and calculated the entanglement measures by iterative algorithm.
A Study of New E-Commerce Logistics Mode Based on Cloud Computing Technology
Authors: Shen Yu Yan , Qian Yan
Published: October 2014

This paper has a comprehensive analysis of the cloud logistics development momentum, in view of the commercial mode theory of Alexander Osterwalder. In combination with the three aspects of assets management such as the allocation of resources, core competitiveness and the partner network , this paper lists the commercial mode analysis of XingChenJiBian Company (STARS EXPRESS).Finally, the current problems and developing trend of cloud logistics mode under e-commerce have been sorted out.And the future of cloud logistics has been prospected in the paper based on the development of cloud logistics.
Virtual Campus Based on Unity3D
Authors: Cheng Zhang , Dan He
Published: October 2014

Virtual Campus is the important part of the university digitization and information construction. The prototype system is established via a case study of the City institute campus, the Dalian University of Technology. 3DMax is adopted as the scene modeling tool and Unity3D is used to be the development tool in the paper. 3D virtual campus based on Web is designed and developed. The virtual campus enables the users to navigate the 3D virtual space, to guide and browse, and to inquire conveniently about relevant campus information at full length. The system runs well and maintain expediently, which means Unity3D is an effective tool for designing and developing a virtual reality platform.
The Safe City System Based on Hadoop
Authors: Wang Han Lin , Luo Yan Li , Zong Wen Xiao , Guo Qing Bin
Published: October 2014

Safe city system due to the particularity of data types, with the increase of access points, how to efficient organize and store the large multiple types of large-scale data is the hotspot and difficulty in research in recent years. Safe City system based on massive amount of data, a wide variety of features, designed to use distributed storage solution. On the basis of the Hadoop HBase distributed computing architecture, using the Blur services, design and implement safe city system based on Hadoop . Experiments show that the system has good expansibility, storage and query efficiency, can effectively solve the concurrent access to huge amounts of data.
Research on the Pattern-Driven Service Composition
Authors: Bai Xue , Kang Hong Wei , Chen Qing Yi , Sun Xing Ping , Shen Yong , Zhou Hua
Published: October 2014

This paper introduces the ontology as the basic description of the domain feature model and defines the description methods of static semantics and behavior protocols. On this basis, it proposes the Architectural Pattern based on the feature model and searching and matching methods of the Design Pattern. Variable point information on the domain feature model could guide the specific application-oriented architecture to cutting and customization so as to lay a solid foundation for the establishment of trace relationships and the system evolution management based on feature tracking.
Comparison of Two-Way and BeiDou Common View Time Transfer between NTSC and BEIJ Station
Authors: Zhang Hong , Yan Min , Guang Wei
Published: October 2014

The data obtained by the two-way satellite time and frequency transfer (TWSTFT) and the BeiDou common view (BDCV) experiments between the National Time Service Center (NTSC) and Beijing station (BEIJ) will be compared in this paper. Results with high agreement between the two techniques will be described. Data analysis results demonstrated that the two-way satellite time and frequency transfer (TWSTFT) and the BeiDou common view (BDCV) can back up each other.
The Real-Time Optimization Strategy on the Mission Database
Authors: Wang Hua , Liu Bing , Liu Huan Ming , Duan Hui Fen , Bao Jun Lei
Published: October 2014

In order to make up the real-time performance of tracking and control information database, this paper design a kind of two-layer’s real-time data storage model based on memory database and relational database. In this article, the two-layer’s real-time data storage mechanism and life cycle are expounded in detail, analyzing and inducing the real-time data characteristic and storage strategy, putting forward the memory database’s self-adaptive index algorithm of T-tree index and hash index, and introducing the database synchronization mechanism between the memory database and relational database and so on. In this way, so as to improve and optimize the real-time, reliability and security of database, provides a reliable data guarantee for future expansion of the real-time application.
Application of Simulation PPT Presentation Based on Virtual Instrument
Authors: Ju Wang , Mei Hong , Nie Chun Yan
Published: October 2014

The simulation shows a PPT presentation based on LabVIEW software of NI in this paper. The main VI program can be embed by sub-VI that dynamic simulate the process of PPT presentation, and use ActiveX technology to generate a real PPT document in LabVIEW.The simulation demo program save into the Microsoft PPT documents for easy archiving and other using presentations. The simulation results show PPT presentations be more vivid, making speech clearer.
A New Process CAD Design Method for Steel Casting Based on PDF File
Authors: Tang Hong Tao , Li Li , Huang Lang , Guo Shun Sheng
Published: October 2014

The process CAD design is the key part for steel casting production in general foundry enterprises. Formerly, for those parts with PDF file from customers, especially foreign customers, the process CAD design was done just by 2D casting process CAD system depending on AutoCAD system; so the designer must spend much time drawing part by AutoCAD according the PDF file which cause low efficiency. In this paper, a new process CAD design method is proposed based on PDF file in order to avoid drawing part by AutoCAD. Fist, the framework of process CAD design is constructed. Second, as the base part of process CAD design, the practical 2D CAD frame is established. Third, the part drawing with PDF file is resolved to be displayed clearly through the Mupdf rendering engine. Finally, the casting processes design of two actual steel castings, including a pump cover casting and a large gear casting, are presented to illustrate this new process CAD design method.
Approach to the Management of Warfare Simulation Scenarios Based on Ontology and CBR
Authors: Luo Lei
Published: October 2014

Warfare simulation scenarios will play a vital role in helping commanders to make decisions, nowadays. However, one warfare simulation scenario usually includes lots of various information with complicated relations and is not so easy to form. Thus, this paper focuses on the presentation of a basic framework of the storage of warfare simulation scenarios, and also the improvement of management capability of them based on the methods of ontology and CBR. Through researching the process of joint air defense warfare, the paper constructed the warfare scenario ontology in that domain based on the method of first-order logic and, in the following, has given the proof of its consistency and completeness. Meanwhile, the paper has also illustrated one case using one feature set and carry out case retrieval based on this expression, which has improved the effectiveness of scenario management.
Instability Mechanism and Supporting Measure for Highway Tunnel with High Ground Stress and Soft Surrounding Rock
Authors: Xue Xiao Hui , Su Zhong Ming , Sun Zhi Jie , Song Fei
Published: October 2014

For the tunnel with high ground stress and soft surrounding rock, the deformation instability is the high frequency and great harm geological hazard. The supporting measure has become a important technique problem. This paper based on the Wuduxi tunnel, the characteristics of deformation and instability mechanism of surrounding rock and supporting structure are analyzed by means of the engineering geological investigation, theoretical analysis and field monitoring. The supporting measure include that using the steel floral tube to back up sidewall, adding support arch and filling foamed concrete, grouting reinforcement in basement. Finally, we use the field monitoring to check the supporting effect. The result shows that the supporting measure could achieve the desired treat effect and it has reference meaning to similar engineering.
Protection Approach against SRLG Failure for Survivable Long-Reach Passive Optical Network in Smart Grid
Authors: Zhao Hong Hao , Meng Fan Bo , Fu Tai Yi , Gao Ming Shuang
Published: October 2014

Long-Reach Passive Optical Network (LR-PON) is widely acknowledged as a promising solution for communication system in smart grid. Survivability is one of the key issues in the planning of LR-PON because massive high-rate traffic flows may be interrupted in case of network component failure. However, the survivability issue of LR-PON is addressed in few works. Most of previous works focus on single distribution fiber failure and remain untouched the simultaneous failure of multiple distribution fibers. In this paper, we focus on the survivability of LR-PON against single Shared-Risk Link Group (SRLG) failure. A reliability model is proposed to represent the probability of reliable connection for each Optical Network Unit (ONU). Based on this reliability model, we propose a novel Backup Fibers Protection (BFP) approach, aiming at the optimization of joint allocating backup capacity and deploying backup fibers. Through extensive simulation, we investigate the performance of BFP and demonstrate its effectiveness in different scenarios.
Experiment Design of Corrosive and Fatigue Property of Steel Box Girder Combined with Environment Controlling Equipment
Authors: Zhang Jian , Hong Tao , Ai Jun , Gao Yan Yuan , Liang Qing Yu
Published: October 2014

The fatigue cracks are inevitably existed in steel bridges after they are working for a fairly short time because of the environmental pollution, overloading vehicles and larger numbers of automobiles. Due to the fact that the scholars have put few emphases on the influence of corrosive environment which inevitably affects the fatigue property of steel bridge, an experiment design of corrosive and fatigue property of steel box girder with the specific environment controlling equipment is taken into account. Through the data from the experiment design, the important residual strain can be gained, which can be used for the analysis of the damage developing regularity.
Usage Urban Sludge to Closed Mine Reclamation and Slope Treatment
Authors: Liu Hua Wei , Yao Tian Ju
Published: October 2014

The development of mining activities had destructed and occupied a large amount of land resource, the ecological recovery has become one of the urgent problems of current world especially in China. Mine reclamation can revivify the utilization function of mining land, protect the farming land and renovate the ecologic environment. Zhu Ma-dian has rich mineral resources, part of the mine resources dried up after many years of mining activities, the reclamation of the closed mine pits and abandoned mine land is very urgent. This paper briefly introduces the use city sewage sludge to reclamation of the closed mine pits and abandoned mine land and treat high slope.
The Treatment Technology of Void Beneath Cement Concrete Pavement Bottom in Cold Area
Authors: Liu Zhong Gen , Li Jing Nan , Cao Guo Bin
Published: October 2014

Based on the discussion of beneath cement concrete pavement void disease, the slab bottom grouting is the main method to solve the disease, and also discussing the strength, frost resistance, resistance to shrinkage, flow uniformity, grouting construction points and ratio of grouting materials, the key points of construction quality control of grouting are specified, the cement pavement disease treatments are put forward.
Influence of Asymmetric Hot Rolling on Microstructures of Vessel Steel
Authors: Bai Xiao Lei , Liu Zhen Guang , Gao Xiu Hua , Lu Yong , Li Jian Ping
Published: October 2014

The symmetric/asymmetric hot rolling experiments were carried out to investigate the effect of shear deformation on microstructure of vessel steel by using electron back-scattered diffraction (EBSD) and field emission transmission electron microscope. The study shows that gradient distribution grain size through the thickness is formed in asymmetric rolled specimen. The grain size in surface is smaller than the one in center. The grain distribution is homogeneous in symmetric rolled specimen. The grain in asymmetric rolled specimen is smaller than the one in symmetric rolled specimen in the same thickness position. The precipitate particles morphology are random precipitate and interphase precipitate in symmetric and asymmetric rolled specimen. The precipitate particles tend to nucleate and grow in the grain in symmetric rolled specimen. The precipitate particles located in grain boundary are observed in asymmetric rolled specimen.
Study on the Mechanical Behavior of Self-Centering Bridge under Horizontal Loading
Authors: Zhao Yuan Yuan , Zhang Xiao Bo , Wang Yan Rong
Published: October 2014

This paper presents a self-centering bridge which is simplified as a deformation body ,while mechanical performance is still in the elastic range ,considering the influence of gravity pier ,the upper structure load ,prestressed tendons and dampers, the horizontal load vs. rotation curve of the self-centering bridge is obtained by theoretical derivation . The study for the self-centering bridge presented in this paper indicates that: under the cyclic loading hysteretic curve type is flag-shaped ,the prestressed tendons provide self-centering ability and dampers provide dissipating energy.
The Effect of Bearing Simulation on Vibration Characteristics of a Steel Box Girder Footbridge Model
Authors: Zhang Ju Bing , Zou Ying , Zhang Xian
Published: October 2014

The measurement and finite element simulation was used to research the effect of bearing on vibration frequency of bridge. Sixteen models accelerometer was instrumented on the bridge and the vibration signals were acquired at a sampling frequency of 512 Hz. The finite element software is adopted to establish the model of the bridge. In this paper, beam element simulation and elastic connection simulation are two ways to calculate the vibrational frequencies. Through comparison, the characteristics of the two simulation methods can be known. By this study, the bridge bearing simulation model of the bridge has an obvious impact on the frequency of bridge model. At the same time, the simulation of bridge should be as close to the reality as possible to obtain more accurate data.